DD229170A1 - DEVICE FOR PRODUCING JACQUARD-PATTERNED POLSCHLINGENWERKE ON CHAIN-ACTIVE MACHINING MACHINES, IN PARTICULAR NEAR-WEAR MACHINES - Google Patents

Abstract

The invention relates to a device for producing jacquard-patterned pile loop knitted fabric on warp knitting machines, in particular knitting machines with a needle bar and wire rod system, a perforated needle row, weft yarn layers or base fabric and pile boards and a reed, via which the pile threads are fed to the knitting point according to the pattern. The aim and task is to produce a qualitatively improved jacquard patterned pile fabric with higher productivity and to develop a device which ensures a functionally reliable selection of the pile threads for the patterning in the area of the knitting tools and a perfect concealment of the non-patterned pile threads. This is achieved in that the front of the reiet has a schraeg down leading edge over the Riet a horizontally grooved offset rail is arranged and above the offset rail is a horizontally movable Fadeneinlegeschiene. The field of application of the invention lies in the textile industry for the production of jacquard patterned pile fabrics, such. As carpets, textile floor coverings, Moebelbezugs- and decorative fabrics. Fig. 1

Description

Title of the invention

Apparatus for producing jacquard-patterned pile loop knits on warp knitting machines, in particular stitch knitting machines

Field of application of the invention

The invention relates to a device for producing jacquard patterned Polschlingengewirke, such as · carpets, textile floor coverings, furniture upholstery and decorative fabrics, on warp knitting machines, in particular stitching machines with a needle bar and lock wire system, a perforated needle row for feeding the sewing thread, weft layers or basic goods and Polplatinen and with one in front of the Polplatinen and above the Schiebernadelebene and vertically displaceable and provided with grooves for temporarily receiving the needles and grooves for guiding the pile threads Riet, on the at least two pile threads per course row of a jacquard machine via a buffer and controllable strands or swivel boards, the Polfadenführer serve, are supplied to the knitting point, weft yarns in a known manner for the formation of a basic product or directly fed to a base fabric and pile threads of each course, which by means of a Jacq selected in a weft bond pattern on the Polplatinen ·

1 & FEB 1933 * 069430

Characteristic of the known technical solutions

There are various devices are known with which on warp knitting machines, especially crochet galloon ^ jacquardgemusterte Polsehlingengewirke be prepared · DD-PS 110073, 119275 and 129221 described that dabeivseitlich displaceable and lowered in every other course between the Uadelreihen Mehrfachpolfadenführer whose thread outlet openings approximately parallel are arranged to the needle shaft, each needle is assigned. Per Mehrfachpolfadenführer while a thread selection board is arranged, which is provided with a needle open towards the throat and patterned to each one of the thread outlet openings of Mehrfachpolfadenführers is · This thread selector plate is used to select the respective musterenden Polfadens'und for insertion of the same in the needle head · Beyond further stated that it is possible not to place the mustering pile thread in the needle head, but to underlay the needle. This procedure has the disadvantage that no secure piercing and thus inferior laying of the pile threads is possible. Furthermore, it has the disadvantage that the deadpool is not covered in any case by the Musterpolfaden. For example, the pile thread coming from the short tube of the multiple pile thread guide as a tot pole always lies over the patterned thread in the area of the wales, thus negatively influencing the appearance of the fabric at lower pile heights, as is customary in BouclS articles.

Furthermore, a device is known from DD-PS 140767, in which for the guidance of the pile threads per needle within the division pattern adjustable swivel plates are available · To guide the pile threads is a Riet between the swing plates and the stitch formation

where the pile threads are received in first gaps extending in the vertical direction, while there are second gaps between the first arranged for temporarily receiving the slider needles and a thread inserting plate. The non-patterning pile threads are integrated by lateral and high-low offsets of the reed, wherein the patterning pile thread is integrated in the work cycles, selected by the respective swivel plate and inserted into the needle hook by means of the thread inserting plate.

A major disadvantage of this device is that it is not possible with this, to process the mustering pile threads in weft laying.

Pur stitching machines are only known for patterning through the use of guide rail offset gearboxes »The production of a jacquard patterned pile fabric on stitchbonding machines has not yet been successful and therefore not known ·

Object of the invention

The aim of the invention is to produce a qualitatively improved and high-quality jacquard-patterned pile knitted fabric with simple technical means and higher productivity with low pile thread consumption.

Explanation of the essence of the invention

The object of the invention is to develop a device which makes it possible to produce jacquard-patterned loop loops on warp knitting machines, in particular stitchbonding machines, which ensure a functionally reliable selection of the pile threads for patterning in the area of the knitting tools and veiling-free covering of the non-patterned knit loops

Pole threads are guaranteed even at low pile heights and in the processing of webs and untwisted silk.

The object is achieved in that the reed front has an obliquely down leading edge and this extends at an acute angle to the direction of the outside of the reed tapered for patterning pile threads · About the Riet is a horizontal transverse and in the direction of the pile threads arranged movable offset rail, which is provided with corresponding in the direction of the pile threads and the division of Rietes hats. Above the offset rail is a thread insertion rail, which is arranged horizontally to the pile threads or in the warp direction movable ·

According to a further feature of the invention, the reed and the offset rail are arranged to be displaceable horizontally transversely to the pile threads or in the weft direction, in particular in the case of lapping machines.

In order to ensure a secure reception of the pile threads in the grooves of the reed and the offset rail, according to a further feature of the invention, the webs located above the hadeln grooves of the reed and those located between the hats of the offset rail are chamfered forward. The thread insertion rail is provided with a pointing to the pile threads rounded edge to avoid interference, such as hooking individual capillaries of the pile threads ·

In order to simplify the motions on the drive side, it is expedient according to another feature of the invention to connect the offset rail and the thread insertion rail with each other.

When working with more than two patterning pile threads or with more than two pile threads per course or when using

According to a further feature of the invention, it is expedient for stronger materials to be provided above the reed and behind the pile threads, a rail which is movable horizontally in the direction of the pile threads or in the warp direction.

Furthermore, it is advantageous to connect the thread insertion rail with the rail in order to combine the movements with each other and thus also to simplify the problems of the drive ·

According to a final feature of the invention, the hats of the offset rail are closed forward to make the operation safer.

embodiment

The invention will be explained in more detail below with reference to an exemplary embodiment. In the accompanying drawings:

Fig. 1: a cross section through the active site of a

equipped with the device according to the invention Schußpol stitching machine,

each a cross-section through the site of action in different phases of work,

each a plan view in section to the pigs 2, 4, 6 and 8.

The active site of the Schußpol stitching machine is according to Pig. 1 of fits with sliding needles 1, fits with closing wires 2, which slide in the needles 1, fits with deburring plates 3 »fits with pole plates 4 and fits with needles 5 for feeding the

Sewing thread 6.

Pig. 2, 4, 6 ι 8th and 10: Pig. 3, 5, 7 and S;

Between the teeing plates 3 and the Polplatinen 4, the machine presented weft layers 7 are guided and continuously deducted according to the set stitch length down. In front of the Polplatinen 4 and above the Schiebernadelebene a horizontally in the direction of the needle bar row and vertically displaceable Riet 8 is arranged, which is provided with downwardly open, according to the division of the machine, horizontally extending hats, in which the Auswärtstreibenden needles 1 are received. Between these horizontally extending hadelnut are vertical obliquely sloping forward hats 9, which are visible in Pig * 3 »5, 7 and 9, for receiving and guiding the pile threads 10 aj 10 b, of a not shown in the Pig Jacquard machine and a buffer and controllable strands 11 a; 11 b, which is used to guide and select the pile threads 10 a; 10 b are attached, the stitch formation are supplied. The reed has an obliquely downwardly leading edge 12 in front and extends in a pointed Winkeioc to the direction of the outside of the reed 8 tapered drawn for patterning pile threads 10 b (FIG. 2) to prevent splitting of the pile threads and the settling of the hole needles. 5 to favor with the Hähfäden 6 to secure underlay the pile threads under the needles 1. Above the reed 8 is an offset rail 13, which is arranged horizontally transversely to the pile threads 10 aj 10 b (in the weft direction) displaceable. For safe acceptance of the pile threads and for temporal superimposition of the held underlay with pre-selection for the next stitch formation, it is possible to arrange the offset rail 13 also horizontally movable in the direction of the pile threads. The offset rail 13 is in the direction of the pile threads 10 a; 10 b and the division of the reed 8 corresponding open hats 14 (Figo 3, 5 »7 and 9) provided for receiving the pile threads.

In order to securely receive the pile threads in the grooves 9 of the reed 8 and in the hats 14 of the offset rail 13, the webs 15 and 16 located above the needle grooves of the reed 8 and the webs 14 of the offset rail 13 are chamfered forward (FIG. 7). · Above the offset rail 13 there is a thread insertion rail 17, which is arranged horizontally in the direction of the pile threads 10 aj 10 b (in the warp direction). It is provided at the front with a rounded edge 18 in order to disturb faults, such as individual pest hooks Capillaries of pile threads, avoid.

The operation of the device according to the invention is as follows: It should first be described working a blank edge, which essentially corresponds to the movement of the reed 8 in conjunction with the needles 1 and the needle needles 5, wherein the pile threads each perform a Schußlegung under a needle and so that the sewing thread 6 can be integrated into the wales without polar formation.

The reed 8 lowers with the lowest edge to at least below the lower edge of the needles 1. At the same time the needles 1 with the trailing wires 2, the weft yarn layers 7 have penetrated and enter the horizontally extending grooves of the reed 8 to about one third of the distance as a result of the trailing lock wires 2, the needle hooks of the slider needles 1 are opened. The reed 8 is raised and the slider needles 1 continue to move to the front dead center, with the needle needles 5 pivoting over the needles 1 from right to left and the sutures 6 are inserted into the needle hook of the needle needles 1. The sliding needles 1 then move to the rear dead center. The trailing lock wires 2 close the needle hooks of the shift needles 1 before the weft layers 7 pass through.

.8th

· Shortly before reaching the rear dead center, the reed 8 moves to the right by one needle pitch and is lowered again with the lowest edge to at least below the lower edge of the needle needles 1. The needle needles 1 puncture the weft layers 7 again, enter to approximately one third The reed 8, after which it is raised again · The needles 1 continue to move to the front dead center, the needles 5 put the sewing thread 6 this time from left to right in the hooking hooks of the needle needles 1. Thereafter, the needles move back to the rear dead center, this time the Riet 8 just before reaching the same offset by one pitch to the left and then lowers again with the lowest edge to at least below the lower edge of the needle bars 1. The new power stroke then starts again with the puncture of the needle needles 1 through the weft layers 7, as already described.

To produce a jacquard-patterned pile formation, the following is added to the described procedure:

The strands 11 b are in a known manner by the Jacquard machine via a buffer in the position according to Pig. 2 pulled. The patterning pile threads 10 b are pulled out of the grooves 9 of the reed 8 into the opposite grooves 14 of the offset rail 13. The non-patterned pile threads 10 a remain in the butene 9 "of the reed. The offset rail 13 then moves one pitch to the right (FIG. 3), whereupon the padena insertion rail 17 presses the patterning pile threads 10 b into the Uachbar grooves of the reed 8 by its horizontal movement, after which the reed 8 descends and the slider needles 1 which have arrived at the rear dead center are driven out, as already described when working the empty edge. until about one third of the distance

half of the reed 8 (Pig * 4, 5) · The reed is raised again and the thread insertion rail 17 returns to its original position · The pile threads 10 b are characterized again from the hats 9 of the reed 8 in the grooves 14 of the offset rail 13 The residual tension 13 then moves one pitch to the left to its initial position (Pig · 7). During this return selection of the pile threads 10 b, the slider needles 1 are above the front dead center, where the insertion of the sewing threads 6 takes place in the needle hooks of the needles 1, on the return movement and pull by means of sewing threads 6, the pile threads 10 b on the Polplatinen 4 on the weft layers 7, wherein the trailing lock wires 2 close the needle hooks of the needles 1 before they pass through the weft layers 7. The previously worked half stitches fall over the tip of the needles 1 in the area of the knock-off board 3 and the sewing threads 6 bind the weft threads in a known manner in the wale · At the same time, the strands 11 b return to the initial position (Pig · 8) and the Pole threads 10 b are pulled out of the grooves 14 of the offset rail 13 into the grooves 9 of the reed 8. Thereafter the reed 8 moves to the left one pitch (Pig · 9) and at the same time moves downwards until at least below the lower edge of the reef Sliding needles 1 (Pig · 10) · The slide needles 1 then drive out again · At ca <> one third of the way inside the reed 8, the pile threads 10 a; 10 b safely underlaid and the reed 8 is raised again · The needles 1 continue to drive out and there is a new selection of pile threads dur.-ch pulling the appropriate strands on the known cache by the jacquard machine (Pig · 2) · While the needle needles their movement over the front dead center, inserting the sewing thread 6 and backward movement with winding the laid under the needles 1 pile threads 10 b by means of the sewing thread 6 on the pile boards 4 on the weft layers 7, perform the rear dead center, the new selection of pile threads

as already described at the beginning ·

A further application variant of the invention is that the offset rail 13 and the thread insertion rail 17 is connected to each other to make the movements of driving technology cheaper and easier, so that after the lateral offset of the offset rail 13, the mustering pile threads 10 b by simultaneous horizontal movement of the thread insertion rail 17th and the offset rail 13 is pressed into the Hachbarnuten the Eietes 8.

When working with more than two mustering pile threads bzwo with more than two pile threads per row or when using stronger materials a horizontally in the direction of the pile threads movable rail 19 is additionally mounted above the reed 8 behind the pile threads to problems encountered, especially when pulling out of each to ensure that the patterned pile threads 10 b are located just behind the non-patterning pile threads 10 a Strands 11 b drawn pile threads 10 b, the non-selected, non-patterned pile threads 10 a by means of the rail 19, the z. B. is moved over an unrepresented eccentric, pressed from the reed 8 in the hats 14 of the offset rail 13 (Fig. 1) · It is necessary that the hats 14 of the offset rail 13 are slightly wider than the hats 9 of the rivets 8 to to ensure that the pile threads 10 a and 10 b are flawlessly guided past each other during the pattern change «. After all pile threads are in the hats 14 of the offset rail 13, the rail 19 moves back to its original position, whereby the non-patterned pile threads 10 a go back into the hats 9 of the reed 8 · The patterning pile threads 10 b

remain due to the drawn strands 11 b in the grooves 14 of the offset rail 13 o Thereafter, the lateral offset of the offset rail 13 is performed by a division to the right · The further process is then analogous as already described. In the movement of the offset rail 13 by a division to the left is to be noted that the lateral offset to the corresponding broadening of the hats 14 additionally takes place to ensure that the drawn for patterning pile threads 10 b through the thread insertion rail 17 securely in the hats. 9 of the reed are pressed ..

In this context, it is also possible to connect the rail 19 directly with the thread insertion rail 17 in order to simplify the problems of the drive and thus to combine the movements with each other. Furthermore, as a design variant of the device would perform that the hats 14 of the offset rail 13 can also be closed to the front, so that the pile threads are constantly in it to prevent malfunction especially in the transfer of pile threads from reed 8 in the offset rail 13, which At the same time the workflow is made safer because all pile threads are constantly in the hats 14 of the offset rail 13, both the patterning and the non-patterned pile threads are inevitably offset laterally by the offset rail 13, wherein the non-patterned pile threads 10 a, in the hats 9 of the Rietes 8 remain, only slightly pulled over the webs 15 of the reed 8 .. The workflow is otherwise the same, as already described.

The device according to the invention ensures reliable selection of the pile threads for the patterning in the area of the knitting tools, a clear separation between non-patterned and patterned pile threads when penetrating the slider needles

At the same time it is ensured that the non-patterned pile threads are completely covered in the goods, whereby a clean fabric image and thus the quality is further improved · Desweiteren by the pile thread warp and thus a clean fabric image even at low pile heights and the processing of webs and untwisted silk a clear pattern failure on the fabric is achieved and a more uniform pile height is ensured, in particular when changing the patterned pile threads.

Moreover, it is the invention for the first time possible »to produce a jacquard patterned pile fabric on stitchbonding machines, whereby the productivity of jacquard patterned goods compared to conventional technologies can be substantially increased and the Polmaterialverbrauch can be reduced.

Claims (1)

invention claim lc Apparatus for producing jacquard patterned PoI-loop knit on warp knitting machines, in particular stitching machines with a needle bar and lock wire system, a row of needles for feeding the suture, weft layers or base goods and Polplatinen and arranged in front of the Polplatinen and above the Schiebernadelebene horizontally in the direction of the needle bar row and vertically displaceable as provided with hats for temporarily receiving the needles and hats for guiding the pile threads Riet, characterized by the at least two pile threads per course of a jacquard machine on a buffer and controllable strands or swing plates, which serve as Polfadenführer, the stitch formation are fed characterized in that the reed (8) has an obliquely downwardly leading edge (12) at its front and this at an acute angle (c <) to the running direction of the outside of the reed (8) tapered to the pattern g elongated pile threads (10 b) extends, above the reed (8) a horizontal transverse and in the direction of the pile threads (10 a) IO b) movable offset rail (13) is arranged, which with in. Direction of the pile threads (10 a, 10 b) and the division of the reed (8) corresponding hats (14) is provided and above the offset rail (13) is a thread insertion rail (17) which is horizontal to the pile threads (10 aj 10 b ) is arranged to move in the direction of warp or in the warp direction. Device according to item 1, characterized in that the reed (8) and the offset rail (13) are arranged displaceable by one pitch horizontally transversely to the pile threads (10a; 10b) or in the weft direction. 3 «Device according to item 1, characterized in that the webs (15; is provided with a rounded edge (18) facing the pile threads (10 aj 10 b) 4. Device according to item 1, characterized in that the offset rail (13) and the thread insertion rail (17) are connected to one another. 5. Device according to item 1, characterized in that above the rivet (8) and behind the pile threads (10a, 10b), a rail (19) moves horizontally in the direction of the pile threads (10a, 10b) or in the warp direction. is intended ο Device according to item 1 and 5 ₅ characterized in that the thread insertion rail (17) and the rail (19) are interconnected. 7 «Device according to item 1, characterized in that the hats (14) of the offset rail (13) are closed towards the front · For this 6 drawings