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Spinning Device And Method For The Piecing Of A Spinning Device

Abstract: The invention relates to a spinning device (1) and to a method for the piecing of a spinning device (1) for the continuous extrusion of moulded bodies (3) from a spinning solution (6), and to a piecing device (11) for carrying out said method. According to said method, the moulded bodies (3) are extruded from the spinning solution (6) by spinnerets (7) of the spinning device (1), as a loose spinning curtain (2), the moulded bodies (3) of the loose spinning curtain (2) are collected together to form a bundle (4) of moulded bodies after the extrusion, and the bundle (4) of moulded bodies is supplied to a drawing-off body (10) of the spinning device (1), in a subsequent step, in order to initiate a continuous extrusion of the moulded bodies (3). The aim of the invention is to develop the method for the piecing of the spinning device (1) such that it is simpler and more reproducible. To this end, the moulded bodies (3) are collected together to form a bundle (4) by torsion of the spinning curtain (2) about a torsional axis (20).

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Patent Information

Application #
Filing Date
02 March 2020
Publication Number
15/2020
Publication Type
INA
Invention Field
TEXTILE
Status
Email
mahua.ray@remfry.com
Parent Application
Patent Number
Legal Status
Grant Date
2024-03-28
Renewal Date

Applicants

LENZING AKTIENGESELLSCHAFT
Werkstraße 2 4860 Lenzing

Inventors

1. DÜRNBERGER, Franz Alfred
Kraims 21 4860 Lenzing
2. LADNER, Karl
Michael-Hainisch-Straße 2 4040 Linz
3. LAUBER, Martin
Schubertstraße 27/11 4020 Linz
4. REISCHL, Daniel
Blumauerstraße 41 4020 Linz

Specification

The invention relates to a spinning device and a method for piecing a spinning apparatus for the continuous extrusion of moldings from a spinning solution, and a piecing device for performing the method, in which method the shaped bodies are extruded as a loose textile curtain of the dope through spinnerets of the spinning apparatus, the shape of the body of the without spinning curtain are summarized after extrusion into a shaped body bundle, and the bundle of molded body is supplied in a further step, a draw-off member of the spinning device to start a continuous extrusion of the molding.

State of the art

Spinning devices of the aforementioned type and its carried out spinning processes are known from the prior art for the production of moldings, for example, fibers, filaments, films, etc.. In particular, in the textile industry, said method of preparation are used by spun staple or continuous fibers. For extrusion, the mold body to the spinning solution is forced through a plurality of spinnerets.

Prior to further treatment of the extruded shaped bodies in subsequent process steps, such as washing, pressing, drying, etc., which do not take place in the spinning apparatus itself, the extruded molded body to be transported, for example, via a draw-off member continuously from the spinning device. To the moldings make such a deduction organ, they must first be combined into a bundle.

In general, that this first part is mentioned a spinning process as a piecing method for piecing and ( "spin-up", "lace-up") of a

Spinning device is called. Piecing the spinning device is a first process step a spinning method, which enable a continuous extrusion of moldings in the spinning process or to initiate. Accordingly, the piecing process includes all process steps in a spinning process which is necessary between the end of a first continuous extrusion and subsequent continuous extrusion, for example after a standstill of the spinning device, or after spinning defects such as tearing of some moldings are below the spinning nozzle, occurred.

Thus, WO 94/28218 A1 shows, for example, a spinning device of the initially mentioned kind, wherein said extruded from the spinning jet spinning curtain is directed through a bottom opening of the Spinnbadbehälters. The bottom opening acts by reducing the diameter of the spinning curtain, are combined whereby the molded body into a molded body bundle. Piecing and the manipulation of spin curtain are however considerably more difficult by the very high depths of the disclosed therein Spinnbadbehälter. therefore Such spinning devices suffer from poor reproducibility of the Anspinnverfahrens as well as to the high susceptibility to Anspinnfehlern which allow no satisfactory continuous extrusion of the shaped bodies and often make a renewed piecing necessary.

The prior art also spinning devices to facilitate Anspinnverfahrens are known. For instance, EP 0574870 A1 discloses a spinning device in which the extruded shaped body are summarized, after emerging from the spinneret as a spin curtain into a molding bundle. This is achieved by the use of a spinning funnel in the spin bath of Spinnbadbehälters which narrows down in cross-section and has a lower restricted orifice. If the spin curtain out through the trumpet, so at the exit of the mold body is provided in the spinning funnel, a molded body bundles and thus facilitates further handling of the moldings in the spinning device during the piecing process. Such spinning funnel are arranged, however, disadvantageous in deep Spinnbadbehälter, whereby a simple handling not given by the operator. In addition, such spinning devices have the disadvantage that must always flow high amounts of spinning bath liquid through the trumpet in Spinnbadbehälter to ensure satisfactory operation, however, leading to turbulent

Currents resulting in the spin bath and adversely affect the process conditions during the continuous extrusion of the molding.

The EP 0746642 B1 describes a spinning apparatus to resolve above-mentioned disadvantages, wherein a bundling member for bundling the shaped body in the form of a deflection element is provided in Spinnbadbehälter. Although such devices avoid the aforementioned turbulent flows in the spinning bath, the piecing process is, however, considerably more difficult, since a initial, manual focusing of the spin curtain is necessary to form a molding bundle by the operator to provide the molded body in the deflection element. However, this requires a disadvantage some effort by the operator. In addition, such piecing is very susceptible to Anspinnfehlern, especially against an incomplete pooling of spin curtain.

Disclosure of the Invention

The present invention has therefore set itself the task to design a piecing of the above-described type a technically simple and reproducible.

The invention achieves the object with respect to the Anspinnverfahrens in that the shaped bodies are summarized by torsion of the spinning curtain around a torsion axis into the shaped body bundle.

If the shaped body summarized by torsion of the spinning curtain around a torsion axis into the shaped body bundle, the continuous extrusion of the shaped bodies and the pooling can be significantly improved to a homogeneous moldings bundle, which the reliability of the Anspinnverfahrens is particularly beneficial. In the twist of the spin curtain, the individual shaped bodies are twisted together around a common point of contact, so that at the point of contact is created, the compact moldings bundle. The twist of the spin curtain, so the twisting of the individual moldings around the common point of contact, also can work for a small error rate in the bundling of the moldings particularly advantageous as reliable all moldings can almost be summed up in the bundle. This can also be done with a much smaller force. In the known prior art methods for piecing of spinning devices, it may also by insufficiently rapid removal of the molded body after its extrusion from the spinnerets in particular to a damming of the mold body and thereby come to a swelling of the spinning curtain during piecing. On inflation of the spin curtain turn individual moldings in the spinning curtain can stick together, which is particularly detrimental to the integrity and homogeneity of the molded body bundle. The twist of the spin curtain can overcome these disadvantages, in particular by not only a compact shaped body bundle is created, but the twist continuously for one, can provide highly controllable removal of the moldings from the spinning nozzle, which can prevent a damming of the moldings and a swelling of the spin curtain reliable. A particularly simple and reliable procedure for piecing a spinning device can thus be provided. This advantageously also subsequently in a more uniform and stable spinning process.

The invention also may be particularly distinguished, if it is in the spinning process is a Lyocell process, and it is, is in the form bodies are cellulosic molded body, in particular cellulose fibers from a spinning solution containing water, cellulose and tertiary amine oxide through spinning nozzles the spinning device to be extruded. In such a method, the twist of the spin can curtain namely already in the air gap between the spinneret and the spinning bath take place, whereby an improved accessibility and thus a significantly simpler method is provided.

In general, it is noted that both continuous fibers or filaments can be understood as well as films and tubes by molding. Such moldings can be processed, such as microspheres for example, subsequently to staple fibers, nonwovens, yarns, textiles, or three-dimensional objects.

The twist of the spin curtain into the shaped body bundle can be made particularly simple if the torsion axis is substantially parallel to the extrusion direction of the extruded molding. The torsion axis extends also through the center of the spinning curtain, it can be ensured that the twist of the spin curtain acts uniformly on all moldings and symmetrical. A particularly homogeneous moldings bundle without internal stresses can be created in the course of the piecing so that the

can further reduce tendency to Anspinnfehlern. A particularly reliable and reproducible piecing can thus be provided.

If the shaped body of the spinning curtain stored with their ends on a rotatable torsion means of a rotation device, which torsion means caused by its rotation the torsion of the spin curtain, so a particularly reproducible and uniform twist of the spin can curtain are ensured. In particular, the speed of torsion of spin curtain can be adjusted by the rotation speed of the Torsionsmittels to the required parameters of the spinning device and matched and thus particularly stable spinning conditions are ensured during piecing. Thus, for example, the desired withdrawal speed of the mold body from the spinneret and thus the desired molding properties (such as the thickness of the molded body bundle, etc. be) set by the rotational speed of the rotary device, which can prevent the formation of spin reliable errors. The reproducibility of the Anspinnverfahrens can thus be further increased. Moreover, the use of a rotary device for torsion of spin curtain for physical relief of the operator of the spinning device can contribute, which carry out the process further simplified.

come, the rotation device positioned below the spinning curtain, so that the ends of the molded body after its extrusion onto the non-rotating torsion means to rest, the operator can of the spinning device are significantly relieved especially in the initial phase of the piecing. This is particularly true when the torsion means of the rotation device according to filing of the ends of the molded body progressively in its rate of rotation until reaching a terminal velocity faster. Likewise, it is also conceivable that the rotation speed after deposition of the moldings is accelerated continuously. In addition, it is noted that the acceleration of Torsionsmittels can be carried out in linear or non-linear acceleration profiles, to optimize the torsion of the shaped bodies according to their properties. In the initial phase is a very expeditious processing of the newly extruded spinning curtain of great importance, since errors can impact during handling at this stage to the increased formation of spin errors which make a renewed piecing necessary. The inventive method thus can by lower tendency to Anspinnfehlern and fine motor and

physical relief for the operator to distinguish as well as high reproducibility.

The aforementioned advantages can be moved particularly easily achieved when the torsion means is formed by a rotatable turntable and extends the axis of rotation of the turntable is substantially parallel to the extrusion direction of the molding.

The twist of the spin curtain can be made even more reliable when the ends of the molded body attached to holding elements of the turntable. The holding elements can take the ends of the molded body in its rotational movement and to the moldings to a joint contact point in the spinning curtain twist around each other, thus causing the torsion of the spin curtain namely with the rotation of the turntable.

Created by the twist of the spin curtain an attack on the area moldings bundle so, in the piecing, a particularly advantageous and easy handling of the moldings bundle are possible. By the formation of attack range on the molded body bundle this can in fact be easily and reliably manipulated and processed further in subsequent process steps. In addition, automated, mechanical handling and manipulation allows the moldings bundle through the defined area attack. If the engagement area also created of the twisted bundle of moldings in the region of the smallest diameter, so a particularly reliable handling of the can body form bundle can be achieved.

Is also an engagement portion on the molded body bundle having a diameter of 1 to 20 cm, especially from 3 to 12 cm, created, so that piecing can be further increased in its reproducibility. Such moldings bundle may in fact have particularly reliable handling conditions, in particular a reliable machine tangibility, characterized in further process steps.

A particularly simple piecing can be created when an automatic gripping device grips the moldings bundle and feeds the draw-off member of the spinning device. An automatic gripping device may be as a gripper on a manipulator arm, wherein the moldings bundle after the twist engages automatically transported via displacement of the manipulator arm to the draw-off member and in the draw-off member providing (such as by clamping, clamping, fastening, etc.). The gripping device engages the tablet bundle advantageously to the trained attack range and can therefore guarantee a high process safety. In the process itself also can be especially beneficial impact, when the molded body bundle is provided only after reaching a terminal velocity of the spinner in the hood body. This will namely allows that on one hand the tablet bundle is completely formed and has the necessary properties for further processing and on the other hand, that the desired properties of the extruded molding (for example, the desired filament count) can be achieved. The terminal velocity of the rotating device can be determined by the desired molding properties or by the required withdrawal speed of the mold body from the spinning nozzles. The manipulator, which provides the mold body in the bundle take-off element, should this case, advantageously both in movement speed and movement profile on the extrusion of the shaped body be matched in particular to the withdrawal speed of the mold body. Too rapid movements or unfavorable peel angle in the course of movement can in turn lead to Anspinnfehlern, in particular to the fact that moldings tear in the spinning curtain must be carried out again so piecing. The inventive piecing can called Anspinnfehler be avoided and accordingly piecing be created with high reproducibility, which also can be fully automated and can provide significant relief in the procedure for the operator of the spinning system over known methods before. that moldings in the spinning curtain fails, must be carried out again so piecing. The inventive piecing can called Anspinnfehler be avoided and accordingly piecing be created with high reproducibility, which also can be fully automated and can provide significant relief in the procedure for the operator of the spinning system over known methods before. that moldings in the spinning curtain fails, must be carried out again so piecing. The inventive piecing can called Anspinnfehler be avoided and accordingly piecing be created with high reproducibility, which also can be fully automated and can provide significant relief in the procedure for the operator of the spinning system over known methods before.

The piecing could be made more reliable when the molded body bundle is cut after gripping by the automated picking means. Advantageously, the shaped body is thereby trimmed bundle below the engagement portion, so that the lower stored on the rotating part of the device shaped body bundle is separated. Feeding the trimmed shaped body bundle to the draw-off device can thus be much easier.

The invention also relates to a piecing device for piecing a spinning device, extruded with a bundling apparatus for bundling spinnerets from the spinning device moldings, which bundling apparatus has at least one rotation device with a rotatable around a rotation axis means, the rotatable means is formed such that the molded body will be summarized by the means of the shaped body bundle.

The invention therefore has further been the object of improving a piecing apparatus of the aforementioned type such that the method for piecing the spinning device - in particular, the focusing of the spin curtain into a molding bundle - be carried out simply using the piecing and reproducibly and with little effort can.

The invention solves the problem concerning the piecing device characterized in that the rotatable means as Torsionmittel, particularly as a turntable, designed to torsion of the shaped body, and the axis of rotation of Torsionsmittels is substantially parallel to the extrusion direction of the molding.

, The piecing a bundling apparatus for bundling the extruded molded body into a molded body bundle, and the rotatable means are designed as Torsionmittel to the torsion of the shaped body and is the axis of rotation of Torsionsmittels substantially parallel to the extrusion direction of the molded body, so a particularly stable and easy piecing device can be used for which can further simplify particularly a method for piecing the spinning device has a spinning device to be created. The rotation device with the torsion means may be designed in particular for receiving ends of the extruded moldings of the loose textile curtain, so that the ends of the mold body on the torsion means can be stored and generated a twist of the spin curtain about the rotational movement of the Torsionsmittels. The rotational movement of Torsionsmittels and related torsion of spin curtain into a molding bundle can thus replace the difficult step of bundling the shaped body by a particularly simple device.

If the torsion means constructed as a turntable, the twist of the extruded moldings can take place in a structurally particularly simple manner. This, when the turntable is in particular formed substantially in parallel to the extrusion direction of the extruded from the spinning nozzle forming body rotatably. In this case, namely, a rotation device for the torsion of the group consisting of extruded moldings loose spin curtain about a torsional axis of the moldings to be created parallel to the extrusion direction which is stable particularly and can reliably produce a compact moldings bundle. The reliability and stability of the spinning device can thus be further increased as a whole. This is especially true

In general it is also mentioned that the piecing apparatus according to the invention particularly preferably for piecing a spinning device for the extrusion of cellulose molded bodies from a spinning solution containing suitable water, cellulose and tertiary amine oxide can.

The piecing device can be further increased in reliability when the torsion means comprises holding elements for increasing the adhesion between molded articles and torsion means. This particular when the holding elements are designed as hooks.

Moreover, the piecing at least a manipulator arm and in each case at least one end effector on the manipulator arm, wherein at least one end effector forms the bundling apparatus, so a stable spinning device can be provided which allows a simple and reproducible piecing. The piecing can thereby carry out fully automatically to the operator of the spinning device to relieve physical and motor particularly piecing the spinning device. While in the above-mentioned known spinning devices, a large force is required to provide the extruded from the spinning nozzles moldings bundle in a draw-off member of the spinning device during piecing, so the operator can be greatly relieved by the comparatively small force required effort in the inventive spinning apparatus. In addition, the spinning device according to the invention can be distinguished by a particularly easy handling and high safety in operation.

The handling of the spinning apparatus can be simplified further if the piecing apparatus comprises a first manipulator arm having a first end effector, wherein said first end effector has a gripper for gripping a molded article bundle. The gripper on the first manipulator arm may be designed such that it capture the molded body bundle reliable and can perform a draw-off member of the spinning device. The transport of the molded article bundle from the spinning nozzle to the withdrawal member can take place in the room by displacement of the first manipulator arm, in particular along arbitrary trajectories. It can of moldings bundle are dispensed In a process for piecing of the spinning apparatus on the comparatively physically strenuous and difficult to reproduce steps of manually threading.

Moreover, the piecing a second manipulator arm having a second end effector, wherein the second end effector having the bundling apparatus, as a particularly flexible piecing device can be provided with a bundling apparatus which bundling apparatus is adapted displaceable thus if necessary between a use position and a rest position. The piecing device can respond flexibly to the requirements of the process accordingly: for example, the bundling apparatus when not in use can be displaced and thus undesirable obstructions are avoided by the bundling apparatus in the spinning device into a rest position. The rotating device is thus switched depending on the process level is between spinnerets and Spinnbadbehälter and extendable. A more reliable spinning device can hereby be created. A structurally simple bundling device can be provided also when it is formed by the spinner.

The handling of the moldings bundle by the piecing device can be further improved if the piecing apparatus further comprises a cutting device for cutting the moldings bundle. Particularly preferably, the cutting device may be provided on the first manipulator

be operatively connected, and more particularly to the gripper such that the cutting of the moldings bundle after a successful gripping operation of the gripper takes place automatically.

The invention has further asked the task of designing a spinning device of the type mentioned reliable and facilitate piecing the spinning device.

The invention achieves the object by a spinning apparatus for the continuous extrusion of moldings, in particular for the extrusion of cellulose molded bodies from a spinning solution containing water, cellulose and tertiary amine oxide, comprising at least one spinning bath containing Spinnbadbehälter, the Spinnbadbehälter associated spinnerets for extrusion of moldings from the spinning nozzle in the spinning bath with a piecing device for piecing of the spinning device according to one of claims 9 to 14th

A rotary device having a rotatable torsion means may additionally be characterized according to the invention when extruded for bundling spinning nozzle of a spinning device of the moldings is used by torsion of these shaped bodies by means of the Torsionsmittels into a shaped body bundle. This can be a turntable at the torsion means about. In addition, it is particularly advantageous if the rotational axis of the Torsionsmittels is substantially parallel to the extrusion direction of the extruded shaped body and the torsion means is formed independently of the spinning apparatus with respect to this freely rotatable. More specifically, the rotation device aforementioned may be distinguished, when it is used for carrying out the invention Anspinnverfahrens according to claims 1 to eighth

Brief Description of Drawings

In the following, the subject invention is exemplified with reference to an embodiment. Show it

Fig. 1 is a partially broken side view of the spinning apparatus of the invention before performing the inventive method for piecing the spinning device,

Fig. 2 is a schematic representation of the method for piecing, the spinning device during a first process step,

Fig. 3 is a schematic representation of the method according to the invention during a further process step,

Fig. 4 is a partially broken side view of the spinning apparatus of the invention after completion of the Anspinnverfahrens, and

Fig. 5 is a partial plan view of a rotation device of the spinning apparatus of the invention.

Ways of carrying out the invention

Referring to FIGS. 1 to 4, a spinning device 1 in different stages of the piecing is shown. Fig. 1 shows the spinning device 1 with the loose textile curtain 2 from extruded shaped bodies 3 before the spinning, ie before the moldings were summarized 3 in a bundling device 5 to form a molding bundle 4, as is apparent from the Fig. 2. The spinning device 1 further comprises a spinning solution 6, which are extruded through a plurality of spinning nozzles 7 to the shaped bodies. 3 The dope 6 is preferably a solution containing water, cellulose and tertiary amine oxide contains a. Below the spinning nozzle 7 is a Spinnbadbehälter 8 is provided, which comprises a spinning bath. 9 As spinning bath 9, a mixture of water and a tertiary amine oxide is preferably used.

Fig. 4 again, the spinning device 1 shows after piecing. The

Shaped bodies 3 are thus summarized by the bundling device 5 to form a molding beam 4 and the mold body bundle 4 is continuously conveyed by a draw-off member 10 of the spinning apparatus 1, whereby a continuous extrusion of moldings 3 takes place from the spinning nozzles. 7

As further seen in Fig. 1, the spinning apparatus 1 for performing the method for piecing the spinning apparatus 1, a piecing device 1 1, wherein the piecing device 1 1 comprises a bundling device 5, a first manipulator arm 12 and a second manipulator arm. 13 On the first manipulator arm 12, a first end effector 14 is provided, which end effector 14 is formed as a gripper sixteenth The gripper 16 is designed such that it can enclose the shaped body bundle 4 and frictionally engage. The gripper 16 is also movable and controllably connected to the first manipulator arm 12th In connection with the free

Movability of the manipulator arm 12, the gripper 16 move the gripped molded articles beam 4 along virtually any desired trajectories.

The piecing apparatus 1 1 also comprises a rotation device 17 which causes the torsion of the shaped body 3 in the loose form body curtain. 2 For this purpose, the rotation device 17 comprises a rotatable torsion means 18, which preferably is designed as a rotary disc 31, the torsion means 18 and the turntable 31 is provided as an end effector 15 on the second manipulator arm 13 and takes over the function of stacker. 5 The axis of rotation 19 of the Torsionsmittels 18, and thus the torsion axis 20 of the spinning curtain 2 in particular runs parallel to the extrusion direction 32 of the mold body 3 in the loose spin curtain. 2

Fig. 5 shows a detailed view of the rotating device 17 of the piecing apparatus 1 1. For reliable twist of the spin curtain 2 are to ensure the torsion means 18, or in particular to the rotary plate 31 holding members 24 in the form of hooks 25 is provided. The moldings ends 23 can thus adhere reliably to the hook 25 and move the textile curtain 2 by the rotation of the Torsionsmittels 18 in torsion.

The torsion means 18 and bundling device 5 by means of the second manipulator arm 13 between the spinning nozzle 7 and 8 and Spinnbadbehälter-, whereby the bundling apparatus 5 is movable in a retracted position of use 22, as required from a rest position 21st Thus, the bundling device 5 can remain in the rest position 21 and 3 constitute an obstacle between the spinning nozzle 7 and 8 Spinnbadbehälter during the continuous extrusion of the molding. Is a renewed piecing of the spinning device 1 is necessary, the focusing device can be displaced into the position of use 5 and 22 allow an inventive piecing.

The inventive method for piecing, the spinning apparatus 1 is shown schematically in FIGS. 1 to 4. Fig. 1 shows the spinning device 1 piecing in the first method step. The mold body 3 are extruded as a loose textile curtain 2 from the spinning nozzles. 7 In a further step - as shown schematically in Figure 2 - is the bundling device 5, in particular the torsion means 18 and the turntable 31 between the spinning nozzle 7 and the Spinnbadbehälter 8 positioned so that the ends 23 of the extruded shaped body 3 on the torsion means come to lie 18th The

Shaped body ends 23 adhere to the support members 24, and hook 25, the Torsionsmittels 18 formed as a turntable 31 and thus increase the adhesion between the mold body 3 and torsion means 18 so that an undesirable sliding of the shaped body 3 on the torsion means 18 is prevented. The torsion means 18 are also added preferably at the start of the process at a standstill, can already before striking the shaped body ends 23 on the torsion means 18 in rotation. After striking the shaped body 23 on the ends of torsion means 18, the rotational speed of the Torsionsmittels 18 is increased as long, until a predetermined final velocity reached. This can for example be stepwise or continuously according to a predetermined acceleration profile. The rotation of the Torsionsmittels 18 of the spinning curtain 2 is the Torsionsache 20 which extends preferably parallel to the extrusion direction 32 of the mold body 3 and through the center of the spinning curtain 2, twisted. The terminal velocity of the Torsionsmittels 18 of the rotation device 17 determines the desired withdrawal speed of the mold body 3 from the spinning nozzle 7 is the piecing process and thus, for example, the desired filament count during piecing. In addition, the molded body bundle 4 can be influenced by the rotational speed of the diameter of the 28th or have to be particularly preferred in the process cm diameter 28 of 1 to 20, especially from 3 cm to 12, exposed, since such diameter 28 allow a simple and reliable handling of the moldings bundle 4 by a gripper sixteenth Due to the twist of the spin curtain 2 on the molded body 4, a bundle to be created rich griffsbe 29 which is preferably located in the region of the smallest diameter 28 of the mold body bundle. 4 The twist of the spin curtain 2 also leads to the formation of an apex 30 at the twisted spin curtain 2, wherein the smallest diameter of the beam shaped body 4 is located substantially at the apex 30 28th

In FIG. 2, the spinning device 1 according to FIGS. 1, after the torsion means 18 shifted via the second manipulator arm 13 from its rest position 21 in its position of use 22, and this has been positioned between the spinning nozzle 7 and Spinnbadbehälter. 8 The spin curtain 2 was followed as described above in a second step, generated by the rotation of the Torsionsmittels 18 and therefore by the created moldings bundle. 4

In Fig. 3, the spinning apparatus 1 is further shown, after the mold body bundle was produced by torsion 4 of the spinning curtain. 2 The moldings bundle 4 will now be gripped by the gripper 16 on the first manipulator arm 12 of the piecing apparatus 1 1 to provide subsequently in a fume hood member 10 of the spinner 1 around the bundle of moldings. 4

Fig. 4 in this case represents the last process step, wherein the first reliably held by the gripper 16 moldings beam 4 is guided by means of the first manipulator arm 12 by the spin bath 9 is a deflection member 26 in the Spinnbadbehälter. 8 Subsequently, the molded body beam 4 is again led out of the Spinnbadbehälter 8 and in the draw-off member 10, which in particular consists of a series string of takeoff godets 27, threaded. After the threading of the moldings bundle 4 in the hood body 10 is a continuous extrusion, the shaped body 3 from the spinning nozzle 7 is possible, and the piecing process is thus completed.

Claims

1. A method for piecing a spinning device (1) for continuous extrusion of moldings (3) from a spinning solution (6), particularly for the extrusion of cellulosic molded bodies (3) from a spinning solution (6) containing water, cellulose and tertiary amine oxide, wherein

- the moldings (3) are extruded as a loose textile curtain (2) from the spinning solution (6) through spinneret (7) of the spinner (1),

- the moldings (3) of the loose textile curtain (2) are combined after the extrusion into a shaped body bundles (4), and

- the tablet bundles (4) is fed into a further step, a trigger member (10) of the spinner (1) to form a continuous extrusion of the shaped body (3) to start,

characterized in that the moldings (3) are combined by torsion of the spinning curtain (2) about a torsion axis (20) into the shaped body bundle (4).

2. The method according to claim 1, characterized in that the torsion axis (20) substantially to the extrusion direction (32) of the mold body (3), in particular through the center of the spinning curtain (2), in parallel.

3. A method according to any one of claims 1 or 2, characterized in that the moldings (3) of the spinning curtain (2) with their ends (23) rotatable on a

Torsion means (18) of a rotary device (17) are stored, which torsion means (18) caused by its rotation the torsion of the spin curtain (2).

4. The method according to claim 3, characterized in that the rotation device (17) is positioned below the spinning curtain (2) that the ends (23) of the mold body (3) come to rest on the stationary torsion means (18) after their extrusion and in that said torsion means (18) of the mold body (3) is accelerated in its rotation speed to reach a final speed after storage of the ends (23).

5. The method of claim 3 or 4, characterized in that the torsion means (18) is formed by a rotatable turntable (31) and that the rotation axis (19) of the turntable (31) is substantially parallel to the extrusion direction (32) of the mold body ( 3).

6. The method according to claim 5, characterized in that the ends (23) of the moldings (3) to holding elements (24) adhere to the turntable (31) and that the holding elements (24) with the rotation of the turntable (31) has a twist of spin curtain (2) effect.

7. A method according to any one of claims 1 to 6, characterized in that by the torsion of the spinning curtain (2) an engagement portion (29) on the

Moldings bundles (4), in particular in the region of the smallest diameter (28) of the twisted body shape beam (4), is provided.

8. The method according to any one of claims 1 to 7, characterized in that an automated picking means (16), in particular a gripper (16) to a manipulator arm (12), the molded body bundles (4) - preferably after reaching a terminal velocity of the Torsionsmittels (18 engages in the engagement area (29) and a trigger member (10) supplying the spinning device (1) -).

9. A piecing device for piecing a spinning device (1), with a bundling apparatus (5) for bundling from the spinning nozzles (7) of the spinner (1) extruded moldings (3) to form a molding bundles (4), which stacker (5) a rotation device (17) with at least one about a rotational axis (19) rotatable means (18) wherein the rotatable means is constructed (18) such that the molded body (3) through the medium are grouped (18) into the shaped body bundles (4) , characterized in that the rotatable means (18) is formed as Torsionmittel (18), in particular a turntable (31), the torsion of the shaped body (3) and that the axis of rotation (19) of the Torsionsmittels (18) substantially parallel to the direction of extrusion (32) the shaped body (3).

10. piecing apparatus according to claim 9, characterized in that said torsion means (18) common to the torsion of the extruded shaped body (3) about a

Torsion axis (20) is formed and that the torsion axis (20) of the mold body (3) coincides with the axis of rotation (19) of the Torsionsmittels (18).

1. 1 A piecing device according to one of claims 9 or 10, characterized in that said torsion means (18) has holding elements (24) to increase the adhesion between the molded bodies (3) and torsion means (18), wherein the holding elements (24), in particular as a hook (25) are formed.

12. A piecing device according to one of claims 9 to 1 1, characterized in that the piecing apparatus comprising (1: 1) a first manipulator arm (12) having a first end effector (14), wherein the first end effector (14) comprises a gripper (16) for gripping a molded body bundle (4).

13. A piecing device according to one of claims 9 to 12, characterized in that the piecing apparatus comprising (1: 1) a second manipulator arm (13) having a second end effector (15), said second end effector (15) comprises the bundling apparatus (5).

14. A piecing device according to one of claims 9 to 13, characterized in that the bundling device (5) is formed in particular displaceable on the second manipulator arm (13), between a rest position (21) and a use position (22).

15. Spinning apparatus for the continuous extrusion of moldings (3), particularly for the extrusion of cellulose molded bodies (3) from a spinning solution (6) containing water, cellulose and tertiary amine oxide, comprising at least one spinning bath (9) Spinnbadbehälter containing (8), the Spinnbadbehälter ( 8) associated with the spinnerets (7) for extruding the molded body (3) from the spinning nozzles (7) in the spinning bath (9), having a piecing device (1 1) for piecing, the spinning apparatus (1) according to any one of claims 9 to 14th

16. The use of a rotary device (17) with a rotatable with respect to a spinning apparatus (1) torsion means (18), in particular a turntable

(31), for bundling from the spinning nozzles (7) of the spinner (1) extruded moldings (3) by torsion of the shaped body (3) by means of Torsionsmittels (18) to form a molding bundle (4).

Documents

Orders

Section Controller Decision Date

Application Documents

# Name Date
1 202017008838-IntimationOfGrant28-03-2024.pdf 2024-03-28
1 202017008838-TRANSLATIOIN OF PRIOIRTY DOCUMENTS ETC. [02-03-2020(online)].pdf 2020-03-02
2 202017008838-STATEMENT OF UNDERTAKING (FORM 3) [02-03-2020(online)].pdf 2020-03-02
2 202017008838-PatentCertificate28-03-2024.pdf 2024-03-28
3 202017008838-FORM 1 [02-03-2020(online)].pdf 2020-03-02
3 202017008838-Annexure [16-03-2024(online)].pdf 2024-03-16
4 202017008838-Information under section 8(2) [16-03-2024(online)].pdf 2024-03-16
4 202017008838-DRAWINGS [02-03-2020(online)].pdf 2020-03-02
5 202017008838-Written submissions and relevant documents [16-03-2024(online)].pdf 2024-03-16
5 202017008838-DECLARATION OF INVENTORSHIP (FORM 5) [02-03-2020(online)].pdf 2020-03-02
6 202017008838-CORRECTED PAGES [15-03-2024(online)].pdf 2024-03-15
6 202017008838-COMPLETE SPECIFICATION [02-03-2020(online)].pdf 2020-03-02
7 202017008838-FORM-26 [29-04-2020(online)].pdf 2020-04-29
7 202017008838-FORM 3 [15-03-2024(online)].pdf 2024-03-15
8 202017008838-MARKED COPY [15-03-2024(online)].pdf 2024-03-15
8 202017008838-FORM 3 [01-05-2020(online)].pdf 2020-05-01
9 202017008838-Correspondence to notify the Controller [27-02-2024(online)].pdf 2024-02-27
9 202017008838-Certified Copy of Priority Document [01-05-2020(online)].pdf 2020-05-01
10 202017008838-certified copy of translation [16-06-2020(online)].pdf 2020-06-16
10 202017008838-Correspondence to notify the Controller [26-02-2024(online)].pdf 2024-02-26
11 202017008838-RELEVANT DOCUMENTS [21-07-2020(online)].pdf 2020-07-21
11 202017008838-US(14)-ExtendedHearingNotice-(HearingDate-01-03-2024).pdf 2024-02-05
12 202017008838-FORM 13 [21-07-2020(online)].pdf 2020-07-21
12 202017008838-REQUEST FOR ADJOURNMENT OF HEARING UNDER RULE 129A [01-02-2024(online)].pdf 2024-02-01
13 202017008838-Proof of Right [22-07-2020(online)].pdf 2020-07-22
13 202017008838-US(14)-HearingNotice-(HearingDate-05-02-2024).pdf 2024-01-05
14 202017008838-ABSTRACT [30-09-2022(online)].pdf 2022-09-30
14 202017008838-FORM 18 [08-10-2021(online)].pdf 2021-10-08
15 202017008838-Annexure [30-09-2022(online)].pdf 2022-09-30
15 abstract.jpg 2021-10-19
16 202017008838-CLAIMS [30-09-2022(online)].pdf 2022-09-30
16 202017008838.pdf 2021-10-19
17 202017008838-COMPLETE SPECIFICATION [30-09-2022(online)].pdf 2022-09-30
17 202017008838-FER.pdf 2022-07-12
18 202017008838-DRAWING [30-09-2022(online)].pdf 2022-09-30
18 202017008838-Proof of Right [25-07-2022(online)].pdf 2022-07-25
19 202017008838-FORM-26 [25-07-2022(online)].pdf 2022-07-25
19 202017008838-FER_SER_REPLY [30-09-2022(online)].pdf 2022-09-30
20 202017008838-FORM 3 [30-09-2022(online)].pdf 2022-09-30
20 202017008838-Others-270722.pdf 2022-08-03
21 202017008838-GPA-270722.pdf 2022-08-03
21 202017008838-Information under section 8(2) [30-09-2022(online)].pdf 2022-09-30
22 202017008838-Correspondence-270722.pdf 2022-08-03
22 202017008838-OTHERS [30-09-2022(online)].pdf 2022-09-30
23 202017008838-FORM 3 [12-08-2022(online)].pdf 2022-08-12
24 202017008838-Correspondence-270722.pdf 2022-08-03
24 202017008838-OTHERS [30-09-2022(online)].pdf 2022-09-30
25 202017008838-Information under section 8(2) [30-09-2022(online)].pdf 2022-09-30
25 202017008838-GPA-270722.pdf 2022-08-03
26 202017008838-Others-270722.pdf 2022-08-03
26 202017008838-FORM 3 [30-09-2022(online)].pdf 2022-09-30
27 202017008838-FER_SER_REPLY [30-09-2022(online)].pdf 2022-09-30
27 202017008838-FORM-26 [25-07-2022(online)].pdf 2022-07-25
28 202017008838-DRAWING [30-09-2022(online)].pdf 2022-09-30
28 202017008838-Proof of Right [25-07-2022(online)].pdf 2022-07-25
29 202017008838-COMPLETE SPECIFICATION [30-09-2022(online)].pdf 2022-09-30
29 202017008838-FER.pdf 2022-07-12
30 202017008838-CLAIMS [30-09-2022(online)].pdf 2022-09-30
30 202017008838.pdf 2021-10-19
31 202017008838-Annexure [30-09-2022(online)].pdf 2022-09-30
31 abstract.jpg 2021-10-19
32 202017008838-ABSTRACT [30-09-2022(online)].pdf 2022-09-30
32 202017008838-FORM 18 [08-10-2021(online)].pdf 2021-10-08
33 202017008838-Proof of Right [22-07-2020(online)].pdf 2020-07-22
33 202017008838-US(14)-HearingNotice-(HearingDate-05-02-2024).pdf 2024-01-05
34 202017008838-FORM 13 [21-07-2020(online)].pdf 2020-07-21
34 202017008838-REQUEST FOR ADJOURNMENT OF HEARING UNDER RULE 129A [01-02-2024(online)].pdf 2024-02-01
35 202017008838-RELEVANT DOCUMENTS [21-07-2020(online)].pdf 2020-07-21
35 202017008838-US(14)-ExtendedHearingNotice-(HearingDate-01-03-2024).pdf 2024-02-05
36 202017008838-certified copy of translation [16-06-2020(online)].pdf 2020-06-16
36 202017008838-Correspondence to notify the Controller [26-02-2024(online)].pdf 2024-02-26
37 202017008838-Correspondence to notify the Controller [27-02-2024(online)].pdf 2024-02-27
37 202017008838-Certified Copy of Priority Document [01-05-2020(online)].pdf 2020-05-01
38 202017008838-MARKED COPY [15-03-2024(online)].pdf 2024-03-15
38 202017008838-FORM 3 [01-05-2020(online)].pdf 2020-05-01
39 202017008838-FORM-26 [29-04-2020(online)].pdf 2020-04-29
39 202017008838-FORM 3 [15-03-2024(online)].pdf 2024-03-15
40 202017008838-CORRECTED PAGES [15-03-2024(online)].pdf 2024-03-15
40 202017008838-COMPLETE SPECIFICATION [02-03-2020(online)].pdf 2020-03-02
41 202017008838-Written submissions and relevant documents [16-03-2024(online)].pdf 2024-03-16
41 202017008838-DECLARATION OF INVENTORSHIP (FORM 5) [02-03-2020(online)].pdf 2020-03-02
42 202017008838-Information under section 8(2) [16-03-2024(online)].pdf 2024-03-16
42 202017008838-DRAWINGS [02-03-2020(online)].pdf 2020-03-02
43 202017008838-Annexure [16-03-2024(online)].pdf 2024-03-16
43 202017008838-FORM 1 [02-03-2020(online)].pdf 2020-03-02
44 202017008838-PatentCertificate28-03-2024.pdf 2024-03-28
44 202017008838-STATEMENT OF UNDERTAKING (FORM 3) [02-03-2020(online)].pdf 2020-03-02
45 202017008838-IntimationOfGrant28-03-2024.pdf 2024-03-28
45 202017008838-TRANSLATIOIN OF PRIOIRTY DOCUMENTS ETC. [02-03-2020(online)].pdf 2020-03-02

Search Strategy

1 SearchStrategy202017008838E_11-07-2022.pdf

ERegister / Renewals

3rd: 07 Jun 2024

From 08/10/2020 - To 08/10/2021

4th: 07 Jun 2024

From 08/10/2021 - To 08/10/2022

5th: 07 Jun 2024

From 08/10/2022 - To 08/10/2023

6th: 07 Jun 2024

From 08/10/2023 - To 08/10/2024

7th: 07 Jun 2024

From 08/10/2024 - To 08/10/2025

8th: 30 Sep 2025

From 08/10/2025 - To 08/10/2026