DE3236210A1 - Warp knitting machine for making patterned pile knits - Google Patents

Abstract

A pile knitting machine for making patterned pile knits, having a needle row, pile sinkers and a plurality of pile-thread guides adjustable per needle in the division plane, a vertically and laterally shiftable guide reed for guiding the pile threads, and a guide comb shiftable in recesses of the pile sinkers on their knockover side and intended for the non-patterning pile threads, is to be so designed, with the aim of preventing pattern errors and of affording optimum operating possibilities, that the pile-thread guides can be brought near to the knockover point, but they remain easily accessible and that the rubbing effect on the non-patterning pile threads is avoided. This object is achieved in that the shed-crossing guide reed passes through only the assembly of patterning pile threads above the insertion edge, has an apex facing the non-patterning pile threads and near the front edges of the pile sinkers and underneath the insertion edge possesses a guide edge approximately parallel to the front edge of the pile sinkers. The bar of the guide reed is advantageously formed from two parts which are connected to one another by means of webs. <IMAGE>

Description

Title of the invention

Warp knitting machine for the production of patterned pile fabrics of the invention The invention relates to a warp knitting machine for manufacture patterned pile fabric with a row of needles, with knitting thread guides, with means for Presentation of weft elements, with pile sinkers, as well as with several needles each associated pile thread guides, which are individually patterned in the plane of division are displaceable that the pile threads form a subject, the tip of which is the tee point and the patterning pile thread faces the needle, with a laterally displaceable one and vertically movable guide reed with an insert edge that is approximately parallel is directed towards the needle shaft, as well as with a guide comb for the pile threads the tee side of the pole plates, which engages in recesses in the pole plates and can be moved laterally.

Characteristics of the known technical solutions A known device of this type has a guide reed that has a reed plate between the pile thread choir (DD 136 986) with an insert edge parallel to the needle. This board reaches through also constantly the non-patterning pile threads. This has the advantage that the loosening the patterning pile thread and its return to the thread array always collision-free is feasible.

The disadvantage here, however, is that it is caused by the stroke of the guide reed and the constant reaching through of the pile threads through the guide plates, that Riet must have a relatively large vertical extension and thus the pile fade must be placed far from the tee point.

The tray opening angle becomes. too small and relatively often leads to one tray not fully open.

This effect is enhanced by it. negatively affected by that Lift and offset movement of the guide reed the non-patterning pile threads according to Art of the Nitscheln are entwined with one another.

The result is pattern errors and the restriction of their application Device for pile threads made of silk, threads cannot have the required function are processed.

Object of the invention The object of the invention is the quality to improve the GeK knitting even when using yarns in the pile, optimal operating options to secure at the point of action and the pile material consumption as low as possible to keep.

Essence of the invention The object of the invention is to be retained the feed direction of the non-patterning pile threads close to the direction of fabric take-off, that the pile thread guides are brought as close as possible to the tee point can and the Nitschel effect on the non-patterning pile threads @ the effective area the insert edge is avoided.

According to the invention this object is achieved in that the subject Crossing guide lines only reach through the host of scrutinizing pile threads above. close to the insert edge a vertex facing the non-patterning pile threads the front edges of the pole plates and below the insert edge one about to Front edge of the pole plates parallel Has leading edge.

The horizontal extension of the insert edge corresponds advantageously the division of two adjacent pole plates.

The apex of the plates of the guide reed is preferably dome-shaped arched and the thickness of the plates is equal to or less than that of the pole plates in adjacent area.

So that the ones that come close to the plates of the guide reed Pile thread guides are easily accessible, and the bar of the guide reed is sufficient Has stability, the boards are attached to a horizontal bar that at larger lateral distances with an essentially vertically stable 3arre are rigidly connected via plate-shaped webs.

The horizontal bar is preferably with the offset drive and the vertical bar is connected to the lifting drive.

For the purpose of saving an additional bar for the knitting threads can the sinkers of the guide reed outside of the pile thread shed for an eyelet Have guidance of the knitting thread.

For better access to the active point for the operator this bar combined in this way is arranged below the row of needles.

In this case the board of the guide reed is with a nearly equally thick shaft over its entire length is palpated that of its front End runs into a hook open to the needle, a first section parallel to the pole plate leading edge. a second section which is approximately parallel to the needle shaft runs, and has a third section, preferably inclined towards the needle shaft, which opens into the bar, and the loop for the knitting thread preferably in the transition from the second to the third section is provided.

This combined bar performs a movement corresponding to a horizontal one 8, the insertion movement alternating on both sides of a middle needle and the stitching movement in the cluster of patterning pile threads, each in two on the wander following cycles takes place outside of the needles adjacent to the left and right.

Exemplary embodiment The invention is to be based on two exemplary embodiments are explained in more detail. The accompanying drawings show: FIG. 1: a Cross section through the loop formation zone of the warp knitting machine, FIG. 2: a View from the right of the bar of the guide reed, FIG. 3: a cross section through the loop formation zone of a second variant of a warp knitting machine d 4: a schematic movement diagram of the guide reed.

The warp knitting machine is based on the principle of the crochet galloon machine built up. It has a number of horizontally arranged and movable compound needles 1 which a controlled slide 2 is assigned to vorzugswei ae. Perpendicular to the arranged fixed pole sinkers 3 reach through the row of compound needles 1, weft thread guides 4 are located behind the pile sinkers 3, are over several Graduations laterally displaceable and under the row of needles between Polplati ne 3 and Lowering rail 5. Between pile sinkers 3 and 4 weft thread guides a laterally displaceable guide comb 6 is arranged, the teeth of which are preferably parallel are aligned to the needle shaft and serve to underlay the non-patterning Pile threads 7a The teeth of the guide comb 6 engage in recesses 8 in the pile sinkers a.

The boundary edges of the recess that guide the pile threads 7a are here 8 inclined to the teeth of the guide comb 6 in the acute angle open towards the rear.

The pile thread guides 9 are pivotably placed around the stationary bolts 10, are on straps 11 and springs (not shown) on the stop 12 in their Rest position A held.

The pile thread guide is from a jacquard machine, not shown 9, which guides the respective patterning pile thread 7b, over harness cords and ribbons 13 brought into the selection position B, the pile threads 7b in rest position A and the Selection position B form a compartment 14, the tip of which faces the tee point is.

The sinkers 15 of a guide reed 16 reach into this compartment. With their upper apex 15a they extend on the one hand in their uppermost position to close to the leading edges of the pole plates 3 and on the other hand to the crowd of non-patterning pile threads 7a. Below the apex 15a is the Insertion edge 15b, which is followed by an approximately vertical guide edge 15c. The sinkers 15 are cast in lead sockets, which in turn on a horizontal are screwed on the horizontal bar.

This means that they can sag vertically even with large working widths horizontal bar 17 can be prevented and still a good accessibility to the pile thread guides 9 and the compound needles 1 remains guaranteed, is at a distance above the horizontal bar 17, a second bar 18 is provided, which in the larger lateral spacing over plate-shaped webs 19 arranged in pairs with the horizontal Barre 17 is connected (Fig. 2). The lifting drive of the guide reed 16 is with the upper bar 18 connected, while the offset drive preferably on the horizontal Barre 17 taps Below the guide reed 16 is the well-known one A bar 20 arranged in a manner with the knitting thread guides 21.

The operation of this device is as follows: While the Moving compound needles 1 to their rear position will turn the weft thread guides around offset by approx. 5 divisions.

From the flock of pile thread guides 9 becomes the patterning pile thread 7b leading pile thread guide moved into position B.

The guide comb 6 brings the non-patterning pile threads 7a into the Plane of the pole plate 3 adjacent to the respective compound needle 1. This kana the compound needle 1 after the underlay of the weft threads also freely on the non-patterning Pile threads 7a pass into the exit position. The patterning pile thread 7b slides past the non-patterning pile thread 7a during its movement the apex 15a of the plate 15 of the guide reed 16, which is in the "shadow" of the Front edge of the pole plates 3 is located in the alley of the guide reed 16o there arrived, the guide reed 16 begins its displacement movement and places the selected ones Pile threads 7b over the adjacent pile sinker and its associated compound needle 1. InZ between the knitting thread guides 21 have their tailor needles 1 with the knitting thread occupied (fringe). The guide reed 16 is now lowered between the row of needles so that that the pile thread passed through the insert edge 15b and the leading edge 1 5c reaches the needle hook.

In the following cycle, the Puhrungsriet 16 remains in the crowd patterning pile threads 7b and brings them with an offset in the opposite direction and the insertion into the needle hook of the needle located in the exit alley during of the second cycle back to the original position.

If the Pührungsriet 16 before the expulsion of the slide needle 1 with his Insertion edge 1 5b offset below the row of needles, it is also possible to use the pattern pole to anchor in a known manner with weft binding on the ground of the goods.

In Fig. 3 is. a device shown only in terms of Design of the guide reed and the knitting thread guide of the embodiment according to Fig. 1 differs, both elements - guide reed and knitting thread guide - are here to one unified single work element. It exhibits both the characteristic elements the plate 15 of the guide reed and that of the knitting thread guide bar.

This guide reed 22 is preferably with. Knitting thread guide 23 at the bar for the knitting thread guide is stored below the row of needles.

As a result, access to the eyelets of the pile thread guides 9 is completely free.

The sinkers 24 of the guide reed 22 have a rod-shaped Cross section, at the front. The apex (analogous to 15a) and the Insert edge (analogous to 15b) forming hook 24a is located. This hook 24a goes in a vertical section 24b - parallel to the front edge of the pole plate 3 -over.

This is followed by a horizontal section 24c, which runs parallel to the Compound needle 1 runs and outside the range of motion of these needles in a third section 24d passes, which crosses the plane of the compound needles 1 and in the bar 20 opens.

In the transition from the second 24c to the third section 24d is located preferably the eyelet 23 for the knitting thread. This is best accessible there and to control. In addition, the one formed between the second and third section The throat is used to guide the knitting thread.

The lifting and displacement movement of this guide reed designed in this way 22 is shown schematically for two successive cycles in FIG.

The guide reed 22 is only through the cross section of its hook 24a shown. It will only be one. single hook 24a in eight different positions shown. For orientation purposes, Fig. 4 shows 5 needles 1 in cross section, the Polpiatinen 3 in a front view and the patterning pile threads 7b in cross section.

Let's see how it works: In position 25, the moves The needle is in the knock-off position and the new selection of the pile threads begins. The leader 22 is shifted one division to the right in position 26 and penetrates from below between the newly selected pile threads 7b - up to position 27. In this position of the guide reed 22, the offset begins above which is in the expulsion position moving compound needles 1 to position 280 In the following Lowering or insertion movement in the direction of position 29 becomes the patterning pile thread 7b 'and the knitting thread assigned to compound needle 1' in the needle hook of this Compound needles 1 'laid and formed into a mesh by this. In the following cycle This process is repeated in a mirror-inverted manner over items 29 - 30 - 31 - 32 up to the starting position 25 with the difference that the patterning pile thread 7b '' is placed in the needle hook 1 'and the pile thread 7b' back to its original Polplatinengasse arrives. In this way, the cycles can be repeated as often as you like will.

Claims (8)

Invention claim 1. warp knitting machine for the production of patterned Pile knitted fabric with a row of needles, with a series of knitting thread guides, with means for placing weft elements, with pile sinkers, as well as with several needles each associated pile thread guides, which are individually patterned in the plane of division are displaceable that the pile threads form a subject, the tip of which is the tee point and the patterning pile thread faces the needle plane, with a laterally displaceable one and vertically movable guide reed with an insert edge that is approximately parallel is directed towards the needle shaft, as well as with a guide comb for the pile threads the tee side of the pole plates, which engages in recesses in the pole plates and is laterally displaceable, characterized in that it crosses the compartment (14) Guide reed (16; 22) only passes through the group of patterning pile threads (7b) above the insert edge (15b) has an apex facing the non-patterning pile threads (7a) (15a) close to the front edges of the pole plates (3) and below the insert edge (15b) a guide edge (15c) approximately parallel to the front edge of the pole sinkers (3) having. 2. warp knitting machine according to claim 1, characterized in that the Einlek te (15b) has a horizontal extension that is approximately a division of the Pole plates (3) corresponds. 3. Warp knitting machine according to claim 1 and 2, characterized in that that the plates (15; 24) of the guide reed (16; 22) approximately the thickness of the pole plates (3) and are arched in the shape of a dome in the region of the apex (15a). 4. warp knitting machine according to claim 1 to 3, characterized in that that the plates (15) of the guide reed (16) attached to a horizontal bar (17) are, which in turn via plate-shaped webs (19) with a predominantly vertical stable bar (18) is connected. 5. Warp knitting machine according to claim 1 to 4, characterized in that that the offset drive on the horizontal bar (17) and the lifting drive on the vertical bar (18) 6. warp knitting machine according to claim 1 to 3, characterized in that the sinkers (24) of the guide reed (22) outside the pile thread shed (14) have an eyelet (23) for guiding the knitting thread. 7. warp knitting machine according to claim 6, characterized in that the sinkers (24) of the guide reed (22) on an arm (20) below the row of needles (1) are stored. 8. warp knitting machine according to claim 6 and 7, characterized in that that the sinkers (24) of the guide reed (22) have an almost equally thick shaft have over their entire length, the at its front end in one of the needles facing hook (24a) expires, a first section (24b) parallel to the front edge the pole sinker (3) has a second section (24c) which is approximately parallel to the needle shaft runs, as well as a third, preferably inclined to the needle shaft section (24d), which opens into the bar (20) and the eyelet (23) preferably in the transition from second to third section is provided.