KR19990029268A - Warp knitting machine with knitting rail - Google Patents

Abstract

In the warp knitting machine provided with the knitting rail 8 according to the present invention, at least one glyph knitting needle 10 and at least one binding yarn knitting needle 11 are provided. The knitting rail 8 can be reciprocated in the direction of the longitudinal axis by the movement control device 14. The glyph knitting needle 10 and the coupling yarn knitting needle 11 can be moved to the purl position by the common movement control device 14. One or more binder yarn knitting needles 11 may be moved to three or more positions (L, M, R) by the auxiliary control device 25 to effect purl and supple movement relative to the knitting rail 8 corresponding thereto. Can be. Thereby, the cost at the time of ligation of the pattern yarn 12 to the base of a knit fabric is reduced.

Description

Warp knitting machine with knitting rail

The present invention supports and moves a needle thread knitting needle to create a base of a knit fabric, one or more glyph knitting needles for placing a pattern on the base of the knit fabric and one or more binder yarn knitting needles for ligation of the pattern yarn to the base of the knit fabric. A warp knitting machine having a knitting rail that can be reciprocated in a direction of a longitudinal axis by a control device.

Such warp knitting machines, in particular the Raschel machine, are used for placing patterns on curtains, laces and the like. In the case of the known warp knitting machine (DE 30 06 194 C2) of that type, the glyph is laid out in the form of an arch with a picot protruding outward and fixedly held on the base of the knitted fabric by the binding yarn. To do so, there is a need for a first knitting rail for attaching a movement control device for floating one or more patterns, and a second knitting rail for attaching a movement control device for ligating the pattern by an attached coupling yarn. Thus, in the case of races with such patterns on both edges, four knitting rails with corresponding movement control devices are required.

From DE 44 14 876 C2, the knitting needles of one or more knitting rails are dispensed by additional movements added to the up and down movements of the knitting rails, and the knitting needles moved during the purl movement in each work cycle The selection of the knitting needle according to the pattern is selected again according to the pattern. For such further movement, an actuator in the form of a curved transducer by piezoelectricity is provided.

From DE 196 51 053.8-26, which has not yet been published, a Jacquard knitting rail is disclosed which allows knitting needles to be reciprocated from a central position by a control member of a needle actuation control device and dispensed to the left and to the right. . The block supporting the two stopper pairs can be moved across the direction of movement of the knitting needle by the control member of the stopper control device. Thereby, it is possible to selectively move the knitting needle to the left or to the right.

It is an object of the present invention to reduce the cost of pattern placement by glyphs in warp knitting machines of the type presupposed at the outset.

1 is a view showing the working zone of the warp knitting machine according to the invention connected to the knitting rail,

2 is a side view of two adjacent holders,

3 is a side view of the right holder of FIG. 2;

4 is a front view of the holder of FIG. 3;

5 is an enlarged view of a lower portion of the holder of FIG. 3, FIG.

6 is a cross-sectional view taken along the line A-B of FIG.

FIG. 7 is a view similar to FIG. 6 showing a block for supporting a stopper in a displaced position compared to FIG. 6;

Figure 8 is a knit knitting operation showing the knitting yarn with a binding yarn attached to it in accordance with the present invention.

Explanation of symbols for the main parts of the drawings

8, 108: knitting rail

9,109: holder

10, 11, 110, 111: binder yarn knitting needles

14: movement control device

15, 17, 19: Operator

18: bend

20 block

21, 22, 23, 24: stopper

25: auxiliary control device

31: needle control device

L, M, R: location

According to the present invention, such an object is that the glyph knitting needle and the binding yarn knitting needle can be moved to the purl position by a common movement control device, wherein one or more of the weaving yarn knitting needles are purged relative to the corresponding knitting rail and It is achieved by allowing it to be moved to three or more positions by the auxiliary control device in order to achieve suprise movement.

In such a configuration, the binder yarn knitting needle has the same basic movement as that of the corresponding glyph knitting needle. The weaving of the binder yarn and the substrate is effected by an auxiliary control device that creates additional movement in addition to the basic movement. Thus, the glyph knitting needle and the combined knitting needle form a sufficient unit even with a single basic movement control device. That alone already brings significant cost savings. Higher working speeds can also be obtained because the knitting bar (knit rail) is moved only in the purl, whereas only the knitting needle with a small mass is moved in the supple.

A particularly preferred configuration is that the glyph knitting needle and the binding yarn knitting needle are supported by a common knitting rail. Thus, additional knitting rails can be omitted. Not only does it bring about a reduction in structural complexity and a cost advantage, but it also involves a reduction in moving mass, which once again favors the speed of operation.

A further recommended preferred configuration is that one or more binder yarn knitting needles can be reciprocated from the center position and dispensed to the left and to the right. By allowing the binder yarn knitting needle to be moved from the center position only when necessary for the dispensing of the needle, the pattern is securely fixed to the substrate while the spatial dimension is reduced.

In that case, the block supporting the two stopper pairs can be moved across the direction of movement of the binder yarn knitting needle by the stopper control device, thereby selectively moving the binder yarn knitting needle to the left or right of the center position. It is structurally advantageous to be. By controlling the operation of the block and the pattern knitting needle in common, it is possible to accurately define three positions of the knitting needle.

In another configuration of the present invention, one or more glyph knitting needles may be reciprocated by the needle control device and dispensed into one or more to produce pico with respect to the knitting rail corresponding thereto. The glyph rings (pico) produced by such additional movements contribute to the easy separation of the lace bands and at the same time make the lace edges more beautiful.

A particularly preferred configuration is that the glyph knitting needle and the binding yarn knitting needle are supported by a common holder which is separably fixed to the corresponding knitting rail. Thus, the glyph knitting needle and the binder knitting needle form a unit that can be manipulated magnetically.

The control members of the auxiliary control device and / or of the needle control device and / or the stopper control device are formed by strip-shaped actuators in the form of piezoelectrically curved transducers, which are clamped at one end and knitted at the other end. Also preferred is a configuration for supporting a needle or block.

A detailed configuration recommended in that regard is that the operators supporting the two knitting needles are mounted in parallel holders next to each other and one or more of the knitting needles have bends for positioning with the other knitting needles. . Thereby, a compact structure is achieved.

It is also preferred that the operator supporting the block is mounted to the holder across the operator next to the operator supporting the two knitting needles, and the block is engaged through between the two knitting needles. In that way, all three operators can be mounted in small outline dimensions.

Yet another preferred configuration is that two knitting rails each having at least one glyph knitting needle and a corresponding twisted yarn knitting needle are arranged symmetrically next to each other. In that way, the edges of two adjacent races can be produced at small intervals from each other, whereby the width of the warp knitting machine is utilized well.

Hereinafter, the present invention will be described in detail with reference to the preferred embodiments shown in the accompanying drawings.

It can be seen from FIG. 1 the work zone 1 of the warp knitting machine. The knitted nose 3 is produced by the knitted knitting needle 2, which is drawn out via the discharge plate 4. The knitting rail 5 supports a knitting needle 6 which feeds a base yarn 7 for forming the base of the knitted fabric, for example, with a tricot float. The first glyph knitting rail 8 supports the holder 9 on which the glyph knitting needle 10 and the binding yarn knitting needle 11 are mounted, as will be described later, such knitting needles 10 and 11 being one. The pattern yarn 12 and the binding yarn 13 described above are supplied. The knitting rail 108, the holder 109 mounted to the knitting rail 108, and the glyph knitting needle 110 and the binder knitting needle 111 supported by the holder 109 are similar to the arrangement described above. They are closely spaced symmetrically in an array. In the side view of FIG. 2, the glyph knitting needle 110 is located behind the glyph knitting needle 10, and the binding yarn knitting needle 111 is located behind the binding yarn knitting needle 11, respectively. The knitting rails 5, 8, 108 are pivoted through the needle passage in a conventional manner and collectively reciprocated by the movement control device 14 shown by the dashed arrows in FIG. 3.

3 to 7 to be described below are views showing the right holder 9 of FIG. 2 in detail. The strip-shaped actuator 15 in the form of a piezoelectric curved transducer is fitted in the slit of the projection 16 by its upper end and fixed to the holder 9, and at the lower end thereof supports the pattern knitting needle 10. do. The second operator 17, which is arranged closely in parallel therewith, is also fixed by the upper end in the slit of the protrusion 16 of the holder 9, and at the lower end via the bend 18 via the binding yarn knitting needle ( 11)

In addition, a third actuator 19 is provided which is arranged across them next to the two actuators 15, 17. Such an operator 19 is likewise fastened to the holder 9 by its upper end and has a block 20 at its lower end, which block 20 has a binder knitting needle 11 in accordance with FIG. 6. In the position of the four stoppers 21 to reciprocate between the stopper 20 and the stopper 21 and in the position of the block 20 according to FIG. 7 so as to reciprocate between the stopper 23 and the stopper 24. 24). In that case, block 20 engages between two knitting needles 10, 11. As a result, the binder knitting needle 11 can be moved from the center position M to the left position L or the right position R and vice versa by the auxiliary control device 25 shown by the solid arrow. have.

The U-shaped link 26 is fixed to the lower end of the holder 9. Such a U-shaped link 26 has two protrusions 27, 28 which serve to guide the binding yarn 13 or the glyph yarn 12. The pattern knitting needle 10 is reciprocated between the stopper 29 and the stopper 30 by the needle control device 31 shown by a double arrow.

The actuators 15, 17, 19 are connected to the electric control device 33 via the electric line 32, which supplies the intermittent instruction based on the pattern placement to the operator.

The operation according to the knitting operation diagram of FIG. 8 may be made by the warp knitting machine described above in detail, and in particular, the Rachet knitting machine. 8 shows an overview of knit knitting for the right race edge with auxiliary lines to make the path of travel easier to understand. The left lace edge can be created face symmetrically. 8 shows the needle passages a to g and the continuous rows of noses I to XV. The base 34 of the knitted fabric is formed by a warp yarn 35 floating as a fringe and a weft yarn not shown.

The thickly illustrated glyph 12 is floated in a desired pattern only by the purl movement of the knitting rail 8. Only in a certain row of noses (I, VI, XIII) additionally the movement of the needle by the operator 15 is carried out to form a glyph ring 36, which is later referred to as glyph ( After cutting or loosening the part of the substrate 34 on the right side of 12), it forms a so-called pico.

In detail, the process proceeds as follows. The position where the knitting needle 11 for guiding the coupling thread 13 is placed in the center position and the knitting rail 10 for guiding the pattern yarn 12 at the left side of the stopper 29 is defined as the basic position. Such a positional rule applies when a pattern is placed on the right race edge. In the case of the right race edge, the glyph knitting rail 10 is held on the right stopper 30 in its basic position.

The two seals 12, 13 are held in the basic position through the passage d. When purl, the coupling yarn 13 is moved to the passage c to the left by the operator 17 acting on the knitting rail 11, and the pattern 12 is acting on the knitting rail 10. It is moved to the passage e to the right by the operator 15, which movement is as shown by arrows representing the auxiliary control device 25 and the needle control device 31. Subsequently, the operator 17 moves the binder knitting needle 11 to the center position M of the passage d at the time of knitting. The ring 36 is formed in the pattern 12 by moving the pattern knitting needle 10 to the passage d. In the next step, the knitting rail 8 is moved to the left over the two passages as indicated by arrows 14. That is, the binder yarn 13 and the pattern yarn 12 is placed in the passage (b). Thereby, the basic position is reached again. In the case of the second row of noses (II), the binder knitting needles 13 are switched to the right at purl and back to the centre at purl; Thereby, the nose II of the second row is completed. Subsequently, two chambers 12, 13 are guided through the passage c and placed in the basic position to initiate the next row of noses III. The next row of noses is also formed in a similar way.

What is shown in the drawings can be modified in various ways without departing from the basic spirit of the invention. The glyph placing unit consisting of the knitting rails 8 and 108 may be arranged in front of the base knitting rail 5. In that way, the glyph 12 is clearly highlighted. In addition, if there is no need to produce pico, the control for the patterned knitting needle 10 can be omitted. Although the glyph knitting needles 10 and the coupling yarn knitting needles 11 each have their own knitting rails, the cost is significantly reduced due to the common movement control device. The movement of the pattern knitting needle 13 made by the needle control device 31 can be extended further than in the case of needle dispensing to obtain a longer pico. In placing the pattern of the left lace edge according to FIG. 8, the pattern of the lace edge extending face symmetrically can be floated by the needle 2 right next to the pattern yarn 12. For the separation of laces, conventional measures may be employed, such as using separate yarns or fusible yarns. Instead of the above-described actuators, other control members for the movement of the needle, such as for example mechanically or electromagnetically actuated pressing elements de 33 21 733 C1, may also be considered.

In the warp knitting machine with the knitting rail according to the present invention, significant cost savings are obtained because the pattern knitting needle and the combined knitting needle form a sufficient unit even with a single basic movement control device. In addition, since the knitting bar is moved only in the purl, while only the knitting needle with small mass is moved in the supple, a high working speed can also be obtained. In addition, since the patterned knitting needles and the combined threaded needles are supported by a common knitting rail, additional knitting rails can be omitted, thereby not only reducing structural complexity and cost advantages, but also moving masses. Once again, the work speed is advantageous.

Claims (10)

A base yarn knitting needle for producing a base of the knit fabric, one or more glyph knitting needles for placing a glyph on the base of the knit fabric and one or more binder yarn knitting needles for ligation of the glyph yarn to the base of the knit fabric In the warp knitting machine having a knitting rail which can be reciprocated in the direction of the longitudinal axis by The glyph knitting needles and the binding yarn knitting needles 10, 11; 110, 111 can be moved to the purl position by a common movement control device 14, wherein one or more of the weaving yarn knitting needles 11, 111 are attached thereto. The knitting rail, characterized in that it can be moved to three or more positions (L, M, R) by the auxiliary control device 25 to achieve purl and supple movement relative to the corresponding knitting rails (8; 108). Warp knitting machine equipped. The warp knitting machine according to claim 1, characterized in that the glyph knitting needle and the combined yarn knitting needle (10, 11; 110, 111) are supported by a common knitting rail (8; 108). 3. Warp knitting machine according to claim 1 or 2, characterized in that the at least one binder yarn knitting needle (11) can be reciprocated from the central position (M) and distributed to the left and to the right. 4. The stopper knitting device according to claim 3, wherein the stopper control device supporting the two stopper pairs (21, 22; 23, 24) can be moved across the direction of movement of the twisted yarn knitting needle (11). Warp knitting machine, characterized in that the needle (11) can be selectively moved to the left or right from the center position (M). 3. The method according to claim 1, wherein the one or more glyph knitting needles 10 can be reciprocated and dispensed by the needle control device 31 to produce pico with respect to the knitting rail 8 corresponding thereto. Warp knitting machine characterized by. 3. The patterned yarn knitting needles (10, 110) and the binder yarn knitting needles (11, 111) are supported by a common holder (9; 109), and the holders (9; 109). The warp knitting machine, characterized in that separably fixed to the knitting rail (8; 108) corresponding thereto. The control member of the auxiliary control device 25 and / or of the needle control device 31 and / or the stopper control device is a strip-shaped operator in the form of a curved transducer by piezoelectricity. Formed by 15, 17, 19, the operator 15, 17, 19 being clamped at one end and supporting the knitting needles 10, 11 or block 20 at the other end. group. 8. The operator (15, 17) supporting the two knitting needles (10, 11) is mounted in a holder (9) in parallel with one another, and at least one of the knitting needles (11) Warp knitting machine, characterized in that it has a bent portion (18) for alignment with another knitting needle (10). 8. The actuator 19 supporting the block 20 traverses the actuator 15, 17 next to the actuator 15, 17 supporting the two knitting needles 910, 11. Mounted to the holder (9), and the block (20) is interlocked between two knitting needles (10, 11). The two knitting rails (8; 108) according to claim 1 or 2, each of which has one or more glyph knitting needles (10; 110) and corresponding twister knitting needles (11; 111) corresponding to each other. Warp knitting machine, characterized in that arranged side by side with each other.