SPANDEX WINDER
FIELD OF THE TECHNOLOGY
[0001] The present invention relates to a forming device in spinning equipment, and more particularly to a spandex winder.
BACKGROUND
[0002] Currently, spandex production mainly adopts technologies of continuous polymerization and high-speed spinning fully-continuous production, and the whole production process is mainly divided into four working procedures: A. polymerization, B. spinning, C. post-treatment, and D. refining. The spinning technique mainly refers to that dope delivered by a spinning tank is supplied to a spinning component via a gear metering pump. After being jetted by a spinneret, the dope enters a spinning stack and solidifies into tows. After false twisting and oiling, the tows are rolled into a tube of a certain weight on a winder. The winder is the most important equipment in the spinning technique, and it has a high rotation speed and is complex to make and process. The winder occupies about 60% of the spinning working procedure cost, and is the most important production equipment in spandex production.
[0003] In the prior art, a function of the spandex winder is winding spandex filament into a tube of a certain weight (commonly known as a spinning cake). Referring to FIGs. 8 and 9, the spandex winder mainly includes a power head 3, a contact roller 10, a traversing yarn guide device 11, a winding roller 1, a revolving plate 2, and an electrical control device. FIG. 8 is a front view of the prior art, and FIG. 9 is a left view of FIG. 8. Each winder has upper and lower winding rollers, and each winding roller may be wound by multiple spinning cakes. When a spinning cake wound in one winding roller reaches a certain weight (full roll), the revolving plate (with the winding rollers on it) starts to revolve and automatically switches to another winding roller (an empty roller to be wound) to
continue spinning. Such winder is usually called a full automatic switching winder. With the growing share of spandex in the chemical fiber market, competition among spandex manufacturers is increasingly intense. In recent years, in order to increase output, winders are developing in a trend of multiple spinning cakes, which indicates that output of finished yarn in unit time increases while the cost of production has little change. Therefore, the objective of spandex manufacturers to pursue maximum productivity is met. However, the trend encounters a certain limit, mainly reflected in that: the winding roller is longer, and so is the yarn guide roller matching with the winder; as a result, the difficulty of processing the winding roller gets raised greatly, and vibration and noises of the winder increase significantly, making it difficult to ensure the consistency of the formed spandex spinning cake.
SUMMARY
[0004] To overcome the disadvantages in the prior art, the present invention is directed to a new-type spandex winder that can make full use of the machinery space and significantly increase the spandex output of a single machine.
[0005] The objective of the present invention can be achieved by the following technical solutions.
[0006] The spandex winder of the present invention includes a power head installed on a rack. A revolving plate capable of revolving around its central axis that extends horizontally is disposed at a front-end of the power head. Two winding rollers that extend forwards in a cantilever manner and are capable of revolving around their axes are parallelly disposed along the central axis of the revolving plate at a front surface of the revolving plate. A slide box is disposed above the revolving plate. A back-end of the slide box is installed at the front-end of the power head by a guide post disposed in the box of the power head and a lifting cylinder adapted to drive the slide box to move up and down along the guide post. A contact roller bearer that extends forwards and a traversing yarn guide device are parallelly installed in a cantilever manner at a front-end of the slide box.
On the contact roller bearer, a contact roller and a power device adapted to drive the contact roller to revolve around its axis at a high speed are installed along its length direction. Specifically, a left revolving plate and a right revolving plate capable of revolving around their central axes thatextend horizontally are disposed at a front-end of the power head, and rotary directions of the two revolving plates are opposite. Two winding rollers that extend forwards in a cantilever manner and are capable of revolving around their axes are parallelly disposed along the central axis of the revolving plate at a front surface of each revolving plate. Two contact roller bearers that extend forwards are parallelly installed in a cantilever manner at a front-end of a slide box. On each contact roller bearer, a contact roller and a power device adapted to drive the contact roller to revolve around its axis at a high speed are installed along its length direction. The traversing yarn guide device is disposed between the left and right contact rollers, and traversing yarn guiders are disposed at both the left and the right side of the traversing yarn guide device. Since only one set of the traversing yarn guide device is provided in the present invention, both the left and right contact rollers share the same set of the traversing yarn guide device. By using such structural design, the width of the power head is significantly reduced, and the structure thereof becomes more compact. Moreover, a yarn path is located between the two revolving plates, which can fully narrow the space between the two revolving plates and greatly enhance the spatial efficiency in both the left and the right direction.
[0007] The rotary movement of the parallelly disposed left and right revolving plates in the present invention is realized by a pair of gears that mesh with each other and are installed respectively on driving axes of the two revolving plates and a transmitting gear that is driven by a motor and meshes with one of the pair of gears.
[0008] Compared with the prior art, the present invention adopts two revolving plates, four winding rollers, and a set of traversing yarn guide device, so that the structure is compact and the space is fully utilized. Meanwhile, it is ensured that the lengths of the yarn paths at the two sides of the yarn guide device are equal and the deflection angles are equal, and thus the tensilities of the spandex are also ensured to be the same. Therefore, a better shape of the spinning cake can be obtained. Under the same processing condition,
the output of the winder is doubled, and the equipment investment cost of the spandex manufacturers is reduced.
BRIEF DESCRIPTION OF THE DRAWINGS
[0009] FIG. 1 is an isometric view of a winder according to the present invention;
[0010] FIG. 2 is a diagram of a transmission principle of the present invention;
[0011] FIG. 3 is a sectional view of a traversing yarn guide device according to the present invention;
[0012] FIG. 4 is a diagram of a revolving control principle of a revolving plate according to the present invention;
[0013] FIG. 5 is a sectional view of the structure of a guide post and a lifting cylinder according to the present invention;
[0014] FIG. 6 is a sectional view of the structure of a contact roller in transmission in a slide box;
[0015] FIG. 7 is a structural view of a winding roller in transmission according to the present invention;
[0016] FIG. 8 is a front view of the prior art; and
[0017] FIG. 9 is a left view of FIG. 8.
Reference numbers:
1-winding rollers; 2-revolving plate; 3-power head; 5-guide post;
6- lifting cylinder; 7- slide box; 8- contact roller 9- traversing device
bearer; bearer;
10- contact roller; 11 - traversing yarn 13- rack; 18- traversing yarn
guide device; guider;
19-yarn; 20-spinning cake ; 21 - a gearing down 22-transmitting
motor; gear;
23"§ear; 24-motor; 25- driving wheel ; 27- driven wheel ;
28- motor ; 29- coupling ; 3°- PaPer tube-
DETAILED DESCRIPTION
[0018] Embodiments of the present invention will be further described below (together with the accompanying drawings).
[0019] FIG. 1 is an isometric view of a winder according to the present invention, and FIG. 2 is a diagram of a transmission principle of the present invention. As shown in FIG. 1 and FIG. 2, the spandex winder of the present invention includes a power head 3 installed on a rack 13. A left revolving plate 2 and a right revolving plate 2 capable of revolving around their central axes that extend horizontally are disposed at a front-end of the power head 3. Two winding rollers 1 capable of revolving around their axes are parallelly disposed along the central axis of the revolving plate at a front surface of each revolving plate 2. A slide box 7 is disposed above the revolving plates 2. A back-end of the slide box 7 is installed at the front-end of the power head 3 via a guide post 5 disposed in the box of the power head and a lifting cylinder 6 adapted to drive the slide box to move up and down along the guide post (referring to FIG. 5, a sectional view of the structure of the guide post and the lifting cylinder according to the present invention is shown). Two contact roller bearers 8 that extend forwards and a traversing yarn guide device 11 disposed between the two contact roller bearers 8 are parallelly installed in a cantilever manner at a front-end of the slide box 7. On each contact roller bearer 8, a contact roller 10 and a power device adapted to drive the contact roller 10 to revolve around its axis at a high
speed are installed along the length direction of each contact roller bearer 8. The power device includes a driven wheel 27 and a driving wheel 25 driven by a motor 24 (referring to FIG. 2 and FIG. 6, in which FIG. 6 is a sectional view of the structure of a contact roller in transmission in the slide box). The traversing yarn guide device 11 is linked to the slide box 7 via a traversing device bearer 9, and traversing yarn guiders 18 are disposed at both the left and the right sides of the traversing yarn guide device 11 (referring to FIG. 2 and FIG. 3, in which FIG. 3 is a sectional view of the traversing yarn guide device according to the present invention). The rotary directions of the parallelly disposed left revolving plate 2 and the right revolving plate 2 are opposite. The contact rollers 10 are active rollers which are pressed on the winding rollers 1 with a certain contact pressure to drive the winding rollers 1 to revolve at a constant speed.
[0020] In this embodiment, the contact pressure between the contact rollers 10 and the winding rollers is controlled by a sophisticated pressure regulating valve. The rotary movements of the palrallelly installed plates 2 are realized by a pair of gears 23 that mesh with each other and are installed respectively on driving axes of the two revolving plates and a transmitting gear 22 that is driven by a gearing down motor 21 and meshes with one of the pair of gears 23 (referring to FIG. 4, a diagram of a revolving control principle of the revolving plate according to the present invention is shown).
[0021] FIG. 7 is a structural vies of a winding roller in transmission according to the present invention. As shown in FIG. 7, the back-end of each winding roller 1 in the present invention is coupled with a motor 28 via a coupling 29. The winding roller 1, when in working stage, is in a passive state, and is driven through friction by the contact roller 10. The winding roller 1 is dragged by the motor 28 only when the spinning cake is switched. Four to twenty paper tubes 30 can be installed on each winding roller 1, and four to twenty spandex spinning cakes can be spun respectively. That is, each new-type spandex winder of the present invention can simultaneously spin six to forty spandex spinning cakes according to demands of a user plant (that is, the specific number of the paper tubes and spandex spinning cakes can be set according to development of the polymeric technical level).
[0022] As shown in FIG. 5, the slide box 7 can move up and down along the guide post 5 under a thrust of the lifting cylinder 6. In a normal spinning process, the slide box 7 gradually moves up with an increasing diameter of the spinning cake 20.
[0023] As shown in FIG. 1, FIG. 2, and FIG.3, the traversing yarn guide device 11 is linked to the slide box 7 via the traversing device bearer 9, and the traversing yarn guide device 11 remains at a constant position relative to the contact rollers 10 or the slide box 7. The traversing yarn guiders 18 are symmetrically disposed at two sides of the traversing yarn guide device, and the number of the traversing yarn guiders 18 at each side is equal to the number of spinning cakes on each winding roller 1. Yarns 19 from supply sectors (such as a yarn guide roller, and so on) disposed above the winder turn into two yarn paths respectively through'the traversing yarn guiders 18 at the two sides after passing the traversing yarn guide device 11. The yarns are wound on the left winding rollers 1 and the right winding rollers 1 simultaneously after passing the contact rollers 10.
[0024] The operating principle of the winder of the present invention is as follows. The winding rollers 1 start winding, and the slide box gradually moves upwards with an increasing diameter of a spinning cake 20. A contact pressure between the contact rollers 10 and the winding rollers 1 is controlled by a sophisticated pressure regulating valve. When a spinning cake 20 wound on one winding roller 1 of its revolving plate reaches a certain weight (full roll), the slide box 7 moves up swiftly, and subsequently the two revolving plates 2 start revolving to switch the other winding roller 1 on each revolving plate 2 from a position to be wound to a normal spinning position and to switch the full roll winding roller 1 to a rolling completed section at a lower portion. Thus, a whole switching action is completed. The swift moving up of the slide box 7 is realized by the lifting cylinder (at this time, the cylinder is filled with high-pressure air). The contact rollers 10 in normal spinning are active rollers (dragged by a synchronous motor), which are pressed on the winding rollers 1 with a certain contact pressure to drive the winding rollers to revolve at a constant speed. As the contact pressures between the two contact rollers and the two winding rollers remain equal, the yarn 19 is symmetrically distributed at the two sides of the traversing yarn guide device. Therefore, the quality of the spun
spandex can be ensured. The rotary directions of the two contact rollers 10 are opposite, and accordingly the rotary directions of the two winding rollers 1 are also opposite. When the diameter of the spinning cake 20 reaches a set value required by the process, the revolving plates 2 need to simultaneously drive the winding rollers 1 to switch. In order to avoid the spinning cakes 20 wound by the two winding rollers 1 interfering with each other, when switching is performed, the spinning cakes 20 take the axes of the revolving plates 2 as the center and respectively revolve towards two outer sides of the power head 13. Therefore, the rotary directions of the two revolving plates 2 are also opposite, and the rotary movements of the two revolving plates 2 are dragged by a set of driving device.
[0025] Compared with the prior art, the present invention adopts two revolving plates, four winding rollers, and a set of traversing yarn guide device, so that the structure is compact and the space is fully utilized. Meanwhile, it is ensured that the lengths of the yarn paths at the two sides of the yarn guide device are equal and the deflection angles are equal, and thus the tensilitiesare also ensured to be the same. Therefore, a better shape of the spinning cake can be obtained. Under the same processing condition, the output of the winder is doubled, and the equipment investment cost of the spandex manufacturers is reduced.
[0026] Finally, it should be understood that the above embodiments are only used to illustrate, but not to limit the technical solution of the present disclosure. In spite of the spandex detailed description of the present disclosure with reference to above exemplary embodiments, it should be understood that various modifications, changes or equivalent replacements can be made by those skilled in the art without departing from the scope of the present disclosure and covered in the claims of the present disclosure.

We Claim:-
1. A spandex winder, comprising a power head installed on a rack, wherein a left revolving plate and a right revolving plate capable of revolving around their central axes that extend horizontally are disposed at a front-end of the power head, and rotary directions of the two revolving plates are opposite; two winding rollers that extend forwards in a cantilever manner and are capable of revolving around their axes are parallelly disposed along the central axis of the revolving plate at a front surface of each revolving plate; a a slide box is disposed above the revolving plates; a back-end of the slide box is installed at the front-end of the power head via a guide post disposed in the box of the power head and a lifting cylinder adapted to drive the slide box to move up and down along the guide post; a traversing yarn guide device and two contact roller bearers that extend forwards are installed in a cantilever manner at a front-end of the slide box, the two contact bearers are parallelly installed, and on each contact roller bearer, a contact roller and a power device adapted to drive the contact roller to revolve around its axis at a high speed are installed along the length direction of the contact roller bearer; the traversing yarn guide device is disposed between the left rollers and the right contact rollers, and traversing yarn guiders are disposed at both the left and the right sides of the traversing yarn guide device; and the contact rollers are active rollers, which are pressed on the winding rollers with a certain contact pressure to drive the winding rollers to revolve at a constant speed.
2. The spandex winder according to claim 1, wherein the rotary movements of the parallelly disposed left revolving plate and right revolving plate is realized by a pair of gears that mesh with each other and are installed respectively on driving axes of the two revolving plates and a transmitting gear that is driven by a motor and meshes with one of the pair of gears .
3. The spandex winder according to claim 1, wherein the contact pressure between the contact rollers and the winding rollers is controlled by a sophisticated pressure
regulating valve.
4. The spandex winder according to claim 1, wherein during the spinning process,
the slide box gradually moves upwards with an increasing diameter of a spinning cake.
5. The spandex winder according to claim 1, wherein the traversing yarn guide
device remains at a constant position relative to the contact rollers or the slide box.