JPH0364558A - Device for patterning in warp knitting machine - Google Patents

Abstract

PURPOSE:To obtain the subject chainless device capable of diverse patterning by providing a slider reciprocating in the front and back of a variable device with a pair of front and back pressing units slidable relatively to a circular arc received surface of a rocking plate. CONSTITUTION:A pair of front and back pressing units 8 and 9 are set so as to alternately receive a received surface 6 of a rocking plate 3 following the front and back movement of a slider 7 in a variable device. The rocking plate 3 is vertically rocked by sliding of the pressing units relatively to the received surface 6 following the movement of the slider 7. Thereby, a holding frame 2 of guide bars 1 is moved back and forth.

Description

DETAILED DESCRIPTION OF THE INVENTION ``Industrial Application Field'' The tip 1+-ra of the moving play 1 is placed on the second side of the link. Regarding operation, when the chain drum rotates and the pattern chain circulates, the tip roller rotates on top of it, so the swing plate moves up and down according to the shape of the chain link, and this movement holds the guide bar. transmitted to the frame.

``Problems to be Solved by the Invention'' However, especially when using such a patterned chain, it is necessary to make a large number of guide bars make various movements because the pattern is wide and complex, such as in curtain fabrics. At times, not only are multiple handle chains required to actuate each guide bar, but multiple chain links are used for each handle chain, making each handle chain very long.

Therefore, according to the conventional chain-based pattern making device, when the pattern is complex, not only does it cost a lot to manufacture a large number of pattern chains, but it also takes time to combine chain links and attach the pattern chains. This required a great deal of time and effort, and also required space outside the knitting machine to extend the pattern chain.

For example, if you want to make 500 courses of patterns with 40 reeds, you will need (40 x 500) 20,000 chain links, the total weight is 1,500 kg, the total length is 15 m, and the combination period is 7. Since the process takes up to 10 days, there is a problem that it is not possible to handle a wide variety of products and small lots.

SUMMARY OF THE INVENTION In view of the above-mentioned circumstances in conventional warp knitting machines, for example, an object of the present invention is to provide a pattern knitting device that can replace the conventional chain-based pattern knitting machine with a chainless one and can be controlled by a computer. And so.

"Means for Solving the Problem" In order to achieve the above-mentioned object, the present invention provides a method in which the swing plate 3 is rotated downwardly by the spring 4 through the holding frame 2'' of the guide bar l of the pattern thread. In a pattern setting device for a warp knitting machine, the guide bar is actuated by receiving a pressing force from a variable device 5 that resists the applied force on the oscillating plate. The receiving surface 6 is formed in an arc shape, and in the variable device, a slider 7 that reciprocates back and forth is provided with a pair of front and rear pressing bodies 8, 9 that can slide against the receiving surface of the swing play 1. The height of the pressing body can be varied in various ways under computer control.

"Function" Since the patterning device in the warp knitting machine is configured as described above, as the slider 7 moves back and forth, the front and rear pairs of pressing bodies 8,
9 are set so as to alternately receive the receiving surfaces 6 of the swing plate 3.

Then, as the slider 7 moves, the pressing body 8 (or 9) slides against the receiving surface 6, causing the swinging plate 3 to move.
swings up and down, and the holding frame 2 of the guide bar 1 moves back and forth. The moving distance is determined by the height of the front and rear pressing bodies 8.9, the reciprocating distance of the slider 7, and the like.

Specifically, in FIG. 1, explanation will be given in the order of figures (1) to 5). Note that 11 is a swing axis of the swing plate 3.

(1) In the figure, the front pressing body 8 receives the receiving surface 6 of the swinging plate 3 in the middle, and the rear pressing body 9 receives the receiving surface 6 of the swinging plate 3 in the middle.
It is higher than that. In this state, the front pressing body 8 is holding the point Q (the lowest end of the receiving surface 6) where the line hanging from the center O of the arc of the receiving surface 6 intersects with that circle. Let this be the reference point (0) for the position of the guide bar 1.

From this state, when the slider 7 moves to the front, the swing plate 3 gradually lowers, as shown in (2) figure.
At a certain point in time both pressing bodies 8.9 will come into contact with the receiving surface 6. However, at this time, the pressing body 8 moves only the near-horizontal lower end surface of the receiving surface 6, so (1)
The fluctuation of the swing plate 3 from the figure to the figure (2) is minute, and it can be considered that the guide bar 1 does not move from the reference point (0). In other words, the movement of the guide bar 1 can be ignored.

The front and rear pressing bodies 8 and 9 alternate after the point in the figure (2), and the rear pressing body 9 receives the receiving surface 6, and as the front pressing body 8 moves away from it, the rear pressing body 9 pushes up. By (
4) The swing plate 3 rotates upward as shown in the figure, and at the end of the slider 7, (5) the rear pressing body 9 reaches the lowest end point Q of the receiving surface 6 as shown in the figure.

- On the other hand, the height of the front pressing body 8 is changed as shown by the dashed line in the state shown in (5) in order to prepare for the next step.
Since the front pressing body 8 is free from the swing plate 3, the height can be easily changed in a state free from the pressing force of the springs 4 and the swing plate 3.

In the explanatory drawing of FIG. 1, the explanatory swinging plate 3 has an isosceles triangular shape (the sides 3a and 3b are the same), and the 0 point (receiving surface 6 Since the tip of the other piece 3b pushes the holding frame 2, what are the lifting dimensions of the Q point and the horizontal movement dimensions of the holding frame 2 (the movement dimensions of the guide bar 1)? ＼゛It is the same.

Furthermore, since the lifting dimension of point Q is the difference in height between the two pressing bodies 8 and 9, the moving distance of the guide bar 1 is determined by the difference.

For example, if (1) the difference in height between the pressing bodies 8 and 9 is one stitch as shown in the figure, then (5) the guide bar 1 will move by one stitch as shown in the figure.

While repeating the above operations, the guide bar 1 moves back and forth while advancing a predetermined distance. Then, the heights of both pressing bodies 8 and 9 and the reciprocation of the slider 7 are calculated by 1jlJ on the computer.
It is possible to give complex and free movement to the guide bar 1 by using J-shaft.

Furthermore, by linking the reciprocating motion of the slider 7 with the motion of the needle 10, the relative positional relationship between the guide bar 1 and the needle 10 can always be maintained accurately, and mutual collision can be reliably avoided.

The structure for changing the height of the suppressor 8.9 is not particularly limited in the present invention, but it is preferable to use an ON/OFF addition/subtraction method because it can be easily controlled by a computer. Addition of rotary methods such as , or methods of inserting and removing plates of different thickness, etc.
A subtractive method is preferable.

Furthermore, although the present invention is not limited to improving warp knitting machines using patterned chains, it is most suitable for improving such warp knitting machines, as shown in the following example.

"Embodiment" FIGS. 2 and 3 show an embodiment of an improved warp knitting machine having a conventional diene type patterning device. Most of the basic structure of the knitting machine remains the same, including the coil spring 4, the puncher 12, the fan-shaped swing plate 3a, etc. Also, the handle chain and drum are removed, and in their place, an auxiliary play (3b), a variable device (5), an interlocking device (5) with the needle (10), etc. are added. An auxiliary plate 3b is integrally attached to the fan-shaped swing plate 3a.

That is, the new swinging plate 3 consists of a fan-shaped swinging plate 3a and an auxiliary plate 3b, of which the auxiliary plate 3b is semicircular and has a pressing body 8 on its arcuate periphery.
, 9 are formed, and the upper surface thereof is the pressing body 8,
9 is the receiving surface 6.

Further, the auxiliary plate 3b is attached to the auxiliary plate 3b by protruding a supporting piece 21 between its chord edges and fixing the supporting piece 21 to the fan-shaped swing plate 3a.

The variable device 5 has a pair of front and rear pressing bodies 8 on the slider 7.
, 9 are installed upright, and the slider 7 can be moved back and forth by a crank mechanism.For the crank mechanism, 22 is a drive disk, and 23 is a slider 7 and a drive disk 22.
A connecting rod 24 connected with a pin is a slide bearing that guides the slider 7.

In both of the pressing bodies 8 and 9, first to sixth trochanters 31 to 36 are stacked in a rectangular cylinder 25, and a rod 38 protrudes from a receptacle 37. Further, at the tip of the rod 38, a rotating pin 3 that engages with the guide arc groove 20 of the swing plate 3 is provided.
9 is provided.

Each of the trochanters 31 to 36 can be formed by providing crescent-shaped bulges 41.4■ on both sides of the circular actuator 40.
The actuator 40 and the bulge 41 .
The major axis differs depending on the size of the trochanter 41, and when the first to sixth trochanters 30 l to 36 rotate 90 degrees, they sequentially change to 12, 4, and 41, respectively.
The height changes in units of 8,16.16 (-unit is 0.7055aon). The actuator 40 uses a rotary solenoid.

Further, regarding the vertical movement of each trochanter 31 to 36, both ends 46,46 of the shaft 45 are engaged with the guide longitudinal grooves 47, 47, and since both ends 46 are square, the shaft 45 is unable to rotate.

The falling down and standing up movements are controlled by a computer.

Therefore, regarding the height of the pressing bodies 8 and 9, each trochanter 31 to 3
If the state in which 6 is overturned is O, then the height position from O to 47 units can be arbitrarily set by adding and subtracting ON and OFF of the actuator 40. For example, if the height is 15 units, the 1st. 2nd゜3rd. Fourth trochanter 31, 32, 3
3.34 stands up and its height is obtained by 1 unit + 2 units + 4 units + 8 units.

In this embodiment, both pressing bodies 8, 9 are each assisted by a rotating pin 39 with a wand 38 at its upper end (3b).
It is constantly engaged with the guide arc groove 20 of. However, except when both pressing bodies 8 and 9 are replaced, either one of the pressing bodies 8 (
Or, only 9) is pushing up the receiving surface 6 of the guide arc groove 20 of the auxiliary plate 3b, and the other pressing body 9 is free from the load because the piston 37 is floating up from the uppermost trochanter 36. Since the pressing body 9 is in the free state, the rotational change of the trochanters 31 to 36 is performed without resistance, and the height of the pressing body 8.9 is easily changed in this free state.

In addition, the combination of the circular motion along the receiving surface 6 and the linear motion of the slider 7 results in an extremely smooth rocking motion of the rocking plate 3, resulting in smooth motion of the guide bar 1 and a smooth movement of the handle thread. The tension load on is reduced.

Furthermore, since the interlocking device 15 with the needle 10 synchronizes the movement of the needle 10 with the rotation of the rotating disk 22 of the crank mechanism, the needle 10 and the guide bar 1 never collide.

"Effects of the Invention" As explained above, according to the present invention, the surface 6 receiving pressure from the swinging device is formed in an arc shape on the swinging plate,
Regarding the variable device, there is a slider 7 that reciprocates back and forth.
A pair of front and rear pressing bodies 8 and 9 that can slide against the receiving surface of the swing plate are provided, and the height of the pressing bodies can be varied in various ways under computer control, so that the following effects can be achieved. Noticeably.

1) Even if the pattern is wide and complex, a chain for the pattern extraction mechanism is no longer necessary, and problems such as the large cost, recombination time, and installation location that were conventionally required are solved.

2) Since the variable device is controlled by a computer, patterns can be changed in a short time just by changing the software, making it easy to handle orders for a wide variety of products and small lots.

3) Information on pattern creation An alternative to a pattern chain is a very small Fronpi, etc., so it is easy to store and manage the patterns.

4) The movement of the needle can be synchronized with the reciprocating movement of the slider of the variable device, thereby reliably preventing the inconvenience of collision between the needle and the guide bar.

5) Due to the combination of the circular motion along the receiving surface and the linear motion of the slider, the movement of the guide bar becomes smooth and the tension load on the pattern thread is reduced.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram showing the operation of the patterning device in the order of figures (1) to (5). FIGS. 2 and 3 show an embodiment of the present invention, and FIG.
The figure is a side view of the main part, and FIG. 3 is an enlarged sectional view of the main part of the variable device. 1... Guide bar 2... Holding frame 3... Swing plate 4... Spring 4 5... Fluctuation device 6... Receiving surface 7... Slider 8° 9... Pressing body

Claims (1)

[Claims] The swinging plate 3 is biased in the downward rotational direction by the spring 4 via the holding frame 2 of the pattern thread guide bar 1, and the swinging plate receives a pressing force from the swinging device 5 that resists the biasing force. In a pattern setting device for a warp knitting machine in which a guide bar is operated, a surface 6 that receives pressure from a variable device is formed in an arc shape on a swing plate, and the variable device has a slider 7 that reciprocates back and forth. A warp knitting machine characterized by having a pair of front and rear pressing bodies 8 and 9 slidable on the receiving surface of the swinging plate, and configured so that the height of the pressing bodies can be varied variously under computer control. Pattern making device.