FORM 2
THE PATENTS ACT, 1970
COMPLETE SPECIFICATION
(SECTION 10)
AN IMPROVED ELECTRONIC CYLINDER OF JACQUARD MACHINE
1) NARHARI PRABHAKAR CHIPPA,
1534. Daji peth, Near Balaji Temple,
Solapur-413 005, Maharashtra,
India.
Indian National
2) SHRINIWAS PRABHAKAR CHIPPA,
1534. Daji peth, Near Balaji Temple,
Solapur-413 005, Maharashtra,
India.
Indian National
The following specification particularly describes the invention and the manner in which it is to be performed.
FIELD OF INVENTION
This invention relates to Textile Industry. This invention is a total combination of Textile, Mechanical Polymer, Electrical, Electronics and Computer Technology. It is a product used for textile industry. Basically, it is an Upgraded Technology of the existing method, which is over 150 years old. This invention particularly relates to an electronic cylinder for jacquard machine.
PRIOR ART
The Conventional Mechanical Jacquard is a shedding device placed on the top of the loom to produce large figure patterns by using a very large number of warp threads separately by means of harness cords, hooks and needles, but without any head-shaft
The principle of Jacquard shedding is that each mail-eye is connected separately to its hook by means of a harness. If there is perforation in the pattern card, the hook is left over the Knife; and when the knife goes up, it carries the hook, the harness and the mail-eye with the warp end to form the top line of shed. Again, if there is no perforation in the pattern card, the hook is left down and the warp end forms the bottom line of shed. This bottom line of warp is maintained or is produced by cylindrical dead weight.
The characteristic of Conventional Jacquard is a shedding apparatus used for selecting and lifting warp threads for each pick. It produces large patterns in which all or most of the warp threads move independently in a repeat of the
design to reproduce elaborate details and flowing lines in a fabric. The Jacquard weaving is characterized by the following distinctive features: -
a) Sketching, designing, card cutting and lacing,
b) Harness building,
c) Lifting the griffe, knifes and hooks, and
d) Rotation of the card cylinder.
For Conventional Jacquard weaving, designs are prepared and made for reproduction in the loom involving the processes of sketching, designing on point paper and card cutting or transferring the design on to pattern cards.
A motif or a design is to be selected for a sketch. A leaf, a creeper, a tree, an animal, a scene, a picture or a concept may be accepted as the motif for designing. This requires to be enlarged or reduced and transferred on to a point paper to the required size, ends and picks. The outline of the figure having been drawn must be filled up with warp or weft stain or other weave and the ground with plain or other simple weave. The cards are generally cut one pick one card-principle, the tota) number of cards being equal to the number of picks in one repeat of the design.
The sketching and designing involves the following steps:
1) First sketch is to be drawn on to a pint or graph paper, ruled vertically and horizontally indicating the numbers of ends and picks required in one repeat of the design pattern,
2) Colour, laid upon the small squares on graph papers formed by vertical lines intersecting horizontal lines,, denotes warp threads lifted above weft threads, and, therefore, holes are cut in the cards.
3) Each horizontal tine on the point paper represents one pattern card and one pick in the cloth, except for special and complex fabrics. Again, each vertical row on point or graph paper represents one end of a single repeat of the design and is controlled by a harness cord of the Jacquard.
The characteristics of the existing Card System are as under:
(a) The pieces of mill board are cut into suitable size to make pattern cards for a Jacquard. The size of cards must cover the needle space of the machine for which they are intended / to be used. A card for 400s Jacquard is 16 3/8 inches or 41.6 cm. Long by 2 7/16 inches or 6.2 cm, wide, and a card for 600s Jacquard is 42.5 cm. Long by 8.74 cm. Wide.
(b) The cards used on handlooms are lighter in weight than those used on power loom. A hundred cards of a 400s Jacquard for handloom will weigh 3% lbs. or 1.6 kg, but cards of the same size for a power loom will weigh 7 lbs. Or 3.18 kg per hundred.
(c) The cards are usually cut from the design on a machine, called a 'piano card cutter*. The machine consists of an iron table and punch box containing thirteen punches, twelve for cutting the smaller holes and one for cutting the peg holes in the cards. The blank pattern cards are all punched with a peg and lace hole cutter and then laced.
(d) Before cards are ready for use, they must be laced into a chain, this may be done by hand or machine. For hand lacing, a frame is required which contains 40 to 50 wood or metal pegs on
each side. They are set to face each other, and to a pitch suitable for the width of cards to be laced. The cards are placed in rotation upon the pegs, and the lacing is threaded through the lace-holes with a needle. Lacing is then crossed over from right to left between every pair of holes in one card, and also between two adjacent cards, then back again in the same order.
(e) The defects of this plan are inequality in the tension of the lacing, an excessive number of Knots and the time taken to do the work.
(f) Lacing is of different kinds and is used in different conditions. It may consist of single or of folded cotton or linen twine, of plaited tubular banding or narrow braid, or of woven tape. In any case they must be strong, supple and not readily influenced by atmospheric conditions.
(g) There are also card lacing machines, viz 'Rotary Wheel Machine', The 'Rapid' machine, etc. The rotary wheel machine is more in use. In this machine, adjustable feed wheels with carrier pins for holding the cards are used, when constitute its chief features.
(h) After the pattern cards are cut and laced, it is necessary to 'wire' them between every 12 to 20 cards. Beyond the width of the cards to support them on 'Card Irons' or a ' Card Cradle' to be drawn upto the card cylinder during weaving.
Brief Description of OLD PATENT application no.191/MUM/2004, PATENT no.201172:-
An Electronic cylinder of a jacquard machine comprising a cylinder having plurality of needles accommodated in it which will be selected as per the design pattern required in the woven cloth; a gripper moving vertically in each or alternative pick will raise the individual yarn to make the upper layer of the shed and the left over or not selected needles connected to individual yarn rime in undistributed to make lower layer of the shed, characterized in that selection of hooks are generated by solenoid coils vertically placed actively by power supply; to allow the respective hook unobstructed In the reset forward movement;
In reset backward movement the unobstructed hook will pass through the Horizontal slot, the obstructed hook by Vertical rod will not enter in the Horizontal slot. Cylinder MJ in its linear movements will press the respective hook connected to needles, the hooks which pass through the slots will not disturb the needles but the hooks which are not passed through the slots will press the needles out of the gripper movement and thus a shed is formed as per the design in floppy or CD through a computer.
An Electronic Cylinder of a Jacquard Machine here the upper layer and lower layer of shed are characterized in that selection of hooks are generated by solenoid coils vertically placed actively by power supply, where vertical rods lift is obtained by taper lever mechanism .
OBJECT OF THE INVENTION
The object of the invention is to provide flexible manufacturing which can program number of plain cards using the versatile feature.
Another object of the invention is to provide a new design having program with a new and separate design.
Another object of the invention is to provide lesser time and lesser storage space.
Another object of Invention is to provide a programmable quantity production of selected design .
Another object of Invention is to weave serially multiple designs, with each piece having new design.
SYSTEM FUNCTION
This system replaces the punched cards in the Conventional Mechanical Jacquard Weaving Machines. The whole system comprises of a Electronic Module arrange in sequential to form a suitable Card Shape and Size, enclosed in a rigid Model, and Electronic Control Unit comprising of a Micro Controller Based System and Power Circuitry.
With the use of this system, it simplifies the Old Mechanical Jacquards by using Modern Electronic and Computer Technology, providing Extensive Design Capabilities. The digital files (generally -bmp file) of the motif to be weaved forms the pattern data for this system. This file is transferred to the Electronic Module via Control Unit. The Pattern formed at the front end of the
Module will be exact Replica of the punched card, which is then impressed over the facing needles in coincidence to the Modules. This system is completely independent from the Loom Speed but operates In-synchronous with it.
SALIENT FEATURES:
1. Zero cards Cost. Eliminates punched cards, hence saving in punched card preparation and maintenance costs. Also cards installation time is saved. No faulty card problem.
2. Production based on direct orders can be achieved.
3. New Designs can be produced with short runs.
4. Large Inventory of different design at very least cost.
5. Variety of design can be merged thus providing design flexibility which helps in market research.
6. Ability to load patterns from standard files.
7. Different patterns can be weaved serially.
8. Built in trouble shooting software.
GENERAL SPECIFICATIONS:
Model (HOOKS) : 400, 600, 800, 1000, 1200,
Speed In synchronous to Loom & Jacquard
speed (up to 400 rpm)
Power Approx. 60 watts for 400 hooks
Consumption (Depends upon design data)
File Format BMP file of motif
Design Flexibility Each piece can be weaved with
different patterns flexibility
Job format Can be programmed can allocate
different designs with required quantity
Hardware Memory Limited to Hard Disc capacity (viz. 4GB
== @1Cr cards for 1200 hooks )
CD Memory CD Memory approx @ 3 million cards
in a 640 MB CD
(Due to continuous R&D, product specification may change without any Priernotia)
DESCRIPTION OF INVENTION
An Electronic Cylinder of a Jacquard machine comprising of a cylinder having a number of horizontal parts (In line with respective DC Micro Motor) in a particular format (e.g. 8 rows by 50 columns, 12 rows by 50 columns or as per mechanical jacquard machine), which will be rotated to BLOCK or UN-BLOCK the hole as per design pattern required in woven cloth, characterized in that rotation of horizontal parts are generated by actuating the rotary solenoid coil or turning ON the DC Micro Motor by Electronic circuit allowing the horizontal parts either to rotate in anti-clockwise direction and thereby blocking the hole, or clockwise direction and thereby non-
blocking {no-obstruction) the hole. We claim for this motion in reverse formats also. Thus creating condition of Blocking (No hole) and non-blocking (hole) for needles on Mechanical Jacquard in forward movement of cylinder (press condition) in fig.5 where horizontal parts rotated in clockwise direction do not disturb the corresponding needles, while horizontal parts rotated in Anti-clockwise direction, thus obstruct the needles of Mechanical Jacquard will press the needles on mechanical jacquard. Thus pressing hooks on jacquard out of gripper movement resulting into latching of non pressed hooks on to the Gripper (in one condition) and leaving the non pressed hooks, then upward lifting of latched hooks by gripper resulting into raising of corresponding individual / group of yarn forming upper layer of the shed, rest yarn forming lower layer of the shed as per design in floppy or CD inputted through a computer to the control circuitry.
Examples:
The invention will now be described with reference to fig. 6 to fig.8.
The fig.6 is the backward condition of the Electronic Cylinder of Jacquard machine.
The fig.8 is the forward condition of the Electronic Cylinder of Jacquard machine.
The invention will now be described with reference to fig.6 to fig.8
Working Principle of Electronic Cylinder an Attachment to Conventional Mechanical Jacquard used in_Textile Weaving Industry:
The fig.6 shows the theoretically explainable diagram. It shows DC Micro Motors DCMM1 and DCMM2, which are placed horizontally along the length of hole at backside, Placed in line is blocker B1 & B2 on DCMM1 & DCMM2 respectively. The DC Micro Motors rotation is conveyed to blocker with the rotation of its shaft as per supply signal. The blocker is specially designed as shown in fig.9 with a semicircular cut along length, thereby creating space for the Jacquard needle to pass through the space, when "hole" condition, the flat cut along length of blocker pin is designed such that it is at offset to center point of DC Micro Motor as shown in fig.10 and also be claim for the center.
Fig.6 also shows MJ (Mechanical Jacquard) with JN1 & JN2 as jacquard needle 1 and Jacquard needle 2, respectively. For simplicity of explanation, only 2 single line of module and 2 needles in mechanical jacquard are considered. Generally there are 400 hooks (8 horizontal lines X 50 vertical lines) 600 hooks (12 Horizontal lines X 50 Vertical lines) or (custom design size) needles as per jacquard size viz. 56 hooks, 64 hooks, 72 hooks (called name writers), 200 hooks, 400 hooks, 600 hooks, 800 hooks, 1000 hooks, 1200 hooks, 1600 hooks, 2400 hooks etc. The JN1 & JN2 are loaded with light springs (which are inside MJ, here not shown), so that they are always forced outside the needle board (not shown) of Jacquard.
Fig.6 shows the blockers B1 & B2 resting on front stopper pins SP1 & SP2 respectively in the corresponding holes H1 & H2 respectively, with No-Data signal given, the front hole are clear.
During the Electronic Cylinder Backward movement, the Data signal is given to the DC Micro Motors. Accordingly, as per design, data signal turns motor ON the direction of flow of current in motor decides the motor to rotate in clockwise or anti-clockwise direction.
Now, if the data given is say one Hole condition and other non-hole condition i.e. if say DC Micro Motor DC MM1 is turned ON and Motor-shaft rotated in clockwise direction and DC Micro Motor DCMM2 is also turned ON but motor shaft is rotated in Anti-clockwise direction. Consequently, DCMMi shaft rotates in clockwise direction which in turn rotates B1 in clockwise direction, B1 stops after striking stopper pin SP1 and rests on it. Thus a clear space / gap is created at the front position of B1, of hole H1 (this works exactly as perforation lieu of card). Also, as the DCMM2 Motor shaft rotates in anticlockwise direction, its rotary motion is conveyed to B2 which in turn rotates anticlockwise and strikes SP2 and rests on it. Thus closing front of Hole H2, it depicts NO HOLE CONDITION. The fig.7 shows the said.
The result of Pattern card as HOLE (Perforation) & NO HOLE condition is now obtained, when the whole assembly (Electronic Cylinder) moves forward. This is shown in fig.8 where JN1 of MJ is not pressed as clear space / gap is created at front of Hole H1 means JN1 has entered the hole of pattern card and JN2 of MJ is pressed by the Blocker B2 (No hole condition). This proves the function of Electronic Cylinder as exact replica of conventional system of pattern cards. This is the concept (Basic Principle) used where all DC Micro Motors are placed horizontally, and we claim for it. The above example is a 2 needles / hook working of Electronic Cylinder System. The same principle when worked with 8 horizontal lines & 50 Vertical lines results in a exact replica of 400 hooks pattern card OR when worked 12 horizontal lines & 50 Vertical lines results in an exact replica of 600 hooks pattern card or as with custom design Jacquard system.
Now again the whole assembly moves back after LOOM
PIK insertion and again New data is given to the DC Micro
Motors as per design data (next card) and whole assembly
moves forward for next pattern card. This process when
repeated for multiple cards, results in a design (as per data)
on the cloth via MJ (Mechanical Jacquard)
Finally, while the invention has been described by way of example and in terms of the preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiments. On the contrary, it is intended to cover various modifications and similar arrangements as would be apparent to those skilled in the art. Therefore, the scope of the appended claims should be accorded the broadest interpretation so as to encompass all such modifications and similar arrangements.
WE CLAIM:
1. An electronic cylinder for a jacquard machine comprising a series of holes, at an equal distance in vertical and horizontal direction, needles are disposed within said holes and said needles are selectable as per the required design pattern of the cloth to be woven, a DC Micro Motor / rotary solenoid coil disposed corresponding to each hole (as shown in fig 3), a blocker in the form of an elongated member (shown in fig. 3 & 4) attached on the shaft of said DC Micro Motor / rotary solenoid coil, a front stopper pin disposed of for each hole, the cross sectional shape of the blocker being specially designed so that when the blocker rotates due to rotation of the DC Micro Motor it blocks the front hole by resting itself on the front stopper pin (as shown in fig.4).
2. An electronic cylinder for a jacquard machine as claimed in claim 1 wherein with the pitch of the holes are similar to that of Mechanical Jacquard needles pitch.
3. An electronic cylinder for a jacquard machine as claimed in claim 1 wherein rotation of blocker is generated by actuating the rotary solenoid coil or turning ON the DC Micro Motor by Electronic circuit allowing it either to rotate in anti-clockwise direction and thereby blocking the hole, or clockwise direction and thereby non-blocking the hole. Also claim for reverse format viz rotation of blocker is generated by actuating the rotary solenoid coil or turning ON the DC Micro Motor by Electronic circuit allowing it either to rotate in clockwise direction and thereby blocking the hole, or anti-clockwise direction and thereby non-blocking the hole.
4. An electronic cylinder for a jacquard machine as claimed in claim 1 wherein the respective needles are unobstructed in the blocker by rotating angularly 30° to 160° as shown in figurel(a).
5. An electronic cylinder for a jacquard machine as claimed in claim 1 wherein the blocker is made of metallic alloy or plastic.
6. An electronic cylinder for a jacquard machine as claimed in claim 1 wherein the holes are in a particular format such as 8 rows bv 50 columns, 12 rows by 50 columns.
7. An electronic cylinder for a jacquard machine as claimed in claim 1 wherein the blocker has a semicircular cut along its length, thereby creating space for the Jacquard needle to pass through the space, when hole is unblocked and further the flat cut along length of blocker pin is designed such that it is at offset to center point of DC Micro Motor as shown in fig.10 and also we claim for the center.
8. An electronic cylinder for a jacquard machine substantially described as herein with reference to the figures of the accompanying drawings.