TW200303382A - Warp shedding device - Google Patents

Abstract

A warp shedding device is disclosed wherein the pitch of arrangement of heddle frames along the direction of warp is shortened, whereby the amount of reciprocating movement of the heddle frame can be reduced when the shedding amount of the warp is predetermined. In a warp shedding device 1, a connector 4 which movably connect a plurality of heddle frames 2 and reciprocating driving members 3 being fitted side by side, is disposed at a place between two neighboring heddle frames 2 without overlapping in the direction of weaving width. In order to prevent the interference between the connector 4 of one of neighboring two heddle frames 2 and the other heddle frame, (1) the connector 4 is kept away from the movement range of the other heddle frame 2, or (2) the heddle frame 2 is provided with a escape portion 11 for escaping from the movement range of the other connector 4.

Description

200303382 V. Description of the invention (1) [Technical field to which the invention belongs] The present invention relates to a device for freely connecting and setting a plurality of heald frames and reciprocating driving members in a warp opening device of a textile machine. [Prior Art] Japanese Patent Publication No. 5 7-1 3 8 9 8 6 discloses an opening device of a textile machine. The opening device of the textile machine of this publication has four scoops of heald frames arranged in parallel with the warp direction. Each heald frame is connected to a rod for reciprocating driving by a link, and is reciprocally driven along the opening direction of the warp. The warp yarn performs an opening movement. In addition, reciprocating driving members such as rods, couplings, and the like interact with each other 的 __ at positions that do not overlap in the weaving width direction between adjacent heald frames. [Summary of the Invention] Problems to be Solved by the Invention ~ In general, in order to minimize the damage to the warp caused by the movement of the warp opening, the amount of warp opening must be reduced. When a plurality of healds are arranged in parallel along the warp direction, the arrangement pitch (thickness in the warp direction) is large, that is, when the distance between the travel position of the weft and the heald frame of the warp is large, in order to obtain a suitable weft insertion The amount of warp yarn opening, the farther each heald frame is from the weaving mouth, the greater the reciprocating motion is required. Therefore, it is considered to make the wall thickness of the heald frame thinner and shorten the arrangement pitch of the plurality of heald frames in the warp direction. However, due to the strength of the linking tool, the wall thickness of the linking tool tends to be thicker than that of the heald frame. On the other hand, the coupling device is directly mounted on the heald frame. Therefore, it is also necessary to avoid interference between adjacent heald frames and connectors, and the arrangement interval of the heald frames has to be enlarged. That is, according to the conventional technology, the thickness of the coupling device causes a problem, and there is a limit in reducing the arrangement pitch of the heald frame.

314344.ptd Page 6 200303382 V. Description of the invention⑵ Therefore, the invention of 5 @ is to reduce the reciprocating amount of the heald frame by shortening the arrangement distance of the heald frame in the warp direction while giving a predetermined opening amount to the warp. Means for solving the problem Based on the above-mentioned present invention, a plurality of heald frames and a reciprocating horse zone moving member are connected in a motionless manner and are arranged between adjacent heald frames in a weaving width direction without repeating In the warp opening device of the position, in order to prevent the connection of one heald frame of the adjacent heald frame from interfering with the other heald frame, (1) remove the connection device from the movement range of the other heald frame by 5 or (2) A hedging frame is formed on the heald frame to retreat from the movement range of the other link. () Ί) The means for disengaging the link from the movement range of the other-heald frame can be achieved by clamping the member of the spacer to the link. With heald frames Between them, or the spacers are integrally formed on either the link (connecting base:) or the end of the heald frame. 0 The formation length of the above separation distance is determined by considering the movement range of adjacent members. (2) The means for forming a retreat portion that retreats from the range of motion of another link on the heald frame can be embodied by forming a retreat portion that retreats from the range of motion of another link on the heald frame. The heald frame is formed as a thin wall or a notch is formed in the heald frame. The forming length of the retreating portion is determined by considering the movement range of the adjacent components. [Embodiment] Fig. 1 and Fig. 2 show the actively driven warp opening device 1 of the embodiment 1 of the present invention. In these Figures 1 and 2, the warp opening device 1 has a previous movement to connect a plurality of heald frames 2 as a reciprocating driving mechanism.

314344.pid Page 7 200303382 V. Description of the invention (3) The connecting device 4 of the push rod 3 1 of the component 3. A plurality of heald frames 2 are arranged side by side in the warp direction in an overlapping state, and a connecting device 4 is arranged between adjacent heald frames 2. In each heald frame 2, the weaving direction perpendicular to the warp direction is not repeated. s position. In addition, as for the characteristic part, the present invention is based on the warp yarn opening device 1, and a spacer 5 is provided between the end of each heald frame 2 and the connecting device 4, and the 4 dagger spacer 5 is formed to have a length L is longer than the maximum relative distance L 1 between the end of the heald frame 2 and the end of the adjacent heald frame 2 in the reciprocating motion, and the connecting tool 4 is connected to the end of the heald frame 2 in the partition 5. φ Also, in this example, the end of the heald frame 2 is the lower end portion of the heald frame 2 extending in the weaving width direction. The spacer 5 is attached to the lower end surface of the heald frame 2 by mounting bolts 6, and the length of the spacer 5 and the maximum relative distance L1 are the length (distance) in the height direction of the heald frame 2. In this example, the spacer 5 is not provided integrally with the connecting device 4. More specifically, the spacer portion 5 includes an upper end portion 51, a lower end portion 52, and an extension portion 53. The upper end portion 51 and the lower end portion 52 constitute a mounting end surface corresponding to the lower end portion of the heald frame 2 and the connection base portion 41, respectively. In order to provide the respective mounting end faces with an interval length L, the extension portion 53 is provided so as to be connected to the upper end portion 51 and the lower end portion 52. Further, a space portion 54 is provided in the extension portion 53, and a mounting bolt 6 for fixing the lower end portion of the heald frame 2 can be inserted therein. In addition, although each of the parts constituting the spacer 5 is preferably formed integrally, it may be constructed as a non-integrated assembly. On the other hand, the connection tool 4 is composed of a connection base 41, a coupling body 42, and a lever pin 43. The connecting base 4 1 is formed in a gate shape, and one end is fixed to the end face of the spacer 5 by a mounting bolt 4 4, and is opposite to the other end.

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314344.ptd Page 8 200303382 V. Description of the invention (4) The rod pin 4 3 has a hole 4 5 for insertion, and is connected by a rod pin 4 3 inserted into the hole 4 5 and the coupling hole 4 6 of the coupling body 4 2.于 组合 体 4 2． A grease nipple 4 7 is attached to the coupling hole 4 6 of the coupling body 4 2. With this structure, the coupling tool 4 is formed to a thickness having a desired strength or durability. In this way, the combined body 4 2 is rotatably connected to the connecting base 4 1 and is connected to the rotary button-type push-up lever 3 1 by the screw portion 4 8. The push-up lever 3 1 follows the main shaft of the textile machine (not shown). The heald frame 2 and the heald 21 are actively driven to reciprocate, and the warp 7 is opened. Spacers 5 are interposed between the heald frame 2 and the connecting device 4 (connecting base 4 1). Each spacer 5 is fixed at a position deviating from the weaving width direction, so that the spacer 5 of the adjacent heald frame 2 is fixed. Will not interfere with each other. In addition, since the maximum relative distance L 1 of the adjacent two heald frames relative to the heald frame 2 with a large moving distance is paid attention to, the length of the spacer portion 5 is longer than the lower end of the heald frame 2 in the reciprocating movement and the adjacent heald frame. 2 The maximum relative distance L 1 between the lower ends is large, so each connecting base 4 1 is located outside the moving range of the adjacent heald frame 2. In addition, the length of the spacer 5 may be an approximate value of the maximum relative distance L 1 or a value larger than this value, and it may be a value determined in consideration of the maximum relative distance assumed in the design. Although the wall thickness of the partition 5 is smaller than the wall thickness of the heald frame 2, in order to save energy or power consumption for driving the heald frame 2, it is preferable to use a small specific gravity (light weight) in terms of appropriate strength (wall thickness, length). ) Materials, and further provide a space like the space section 5 4 to reduce weight. The specific structure of the connecting device 4 is not limited to those shown in the drawings. It can also be replaced by a different structure, and either the spacer portion 5 and the connecting base portion 41 or the heald frame 2

314344.ptd Page 9 200303382 V. Description of the invention (5) The component is integrally formed. In addition, in order to reduce the weight, it is desirable to set the length of the spacer 5 in the knitting width direction to the required minimum length, and it is also possible to consider extending from the required minimum length in the width direction or to extend it to the entire length. width. The embodiment 2 of FIGS. 3 and 4 is an actively driven warp opening device 1, which is used for the loading and unloading workability of the heald frame 2. It is applied to the side guide to hold the heald frame 2 on the reed loom. An example in which the spacer portion 5 is integrally provided on the coupling tool 4 connected to the lower end of the side guide 8. The spacer portion 5 is made thinner than the heald frame 2 or the side guide 8 and, similarly to the first embodiment shown in Figs. 1 and 2 of the front section, it is larger than the end portion of the adjacent heald frame 2. Specifically, the lower end of the adjacent side guide 8 is formed by extending a length L equal to or greater than the maximum relative distance L 1. In addition, the side guides 8 are attached to the upper and lower positions at the side ends of the heald frame 2 by the fixtures 9, and are guided by the two upper and lower fixed guides 10. Also, although not shown in the drawings, the connecting device 4 and the push-up lever 31 are alternately arranged along the weaving width direction, so that the neighbors do not interfere with each other. Further, as shown in the figure, although the spacer portion 5 is provided integrally with the connecting base portion 41, it may be formed in a non-integrated manner with the connecting base portion 41 in the same manner as the first embodiment shown in Figs. 1 and 2. The embodiment 3 in FIG. 5 and FIG. 6 is suitable for a negatively driven warp opening device 1 and reciprocatingly connects the “outline 3 2” as the reciprocating driving member 3 to the upper end of the side guide 8 and Example of the lower end. The upper and lower steel cables 3 2 are connected to the heald frame by a coupling body 4 9 and a connection pin 4 0 and by a connection base 4 1 and a spacer 5 of the connection tool 4 integrated with the side guide 8.

3] 4344.ptd Page 10 200303382 V. Description of Invention (6) 2. In this way, the connecting tool 4 (the connecting base 4 1) and the spacer 5 are provided on both sides. Further, the spacer portion 5 is set to be thinner than the wall thickness of the heald frame 2 or the side guide, and, as in the previous example, the end portion of the adjacent heald frame 2 is described in more detail with respect to the adjacent side guide. The upper or lower end of 8 is formed by extending a length L of at least the maximum relative distance L 1. Of course, one of the upper and lower steel cables 32 is linked to the rotation of the loom spindle by a cam mechanism or a coupling mechanism (not shown), and is driven in the forward movement direction of the reciprocating motion. The tension spring springs in the direction of the reciprocating motion. The embodiment 4 of FIG. 7 and FIG. 8 is a positively driven warp opening device, instead of providing the spacer 5, the opposite part of the adjacent heald frame 2 is reciprocated with the adjacent connecting device 4. An example in which the retreat portion 11 is formed within the range of movement. The retreat portion 11 is formed by forming the width W of the adjacent link 4 in the weaving width direction and forming a length L equal to or greater than the length L 2 of the movement range of the link 4 adjacent to each other in the movement direction by reciprocating motion. Thin-walled. Further, the retreat portion 11 is formed in a thin wall by spanning the required length in the weaving width direction, that is, the length of the connector 4 or more, and a notch may be further formed. [Effects of the Invention] According to the first item of the scope of the patent application, in the warp yarn opening device, a space is provided between the end of the heald frame and the coupling device, and the space is formed to be more than the end of the heald frame in the reciprocating motion and the adjacent one. The maximum relative distance between the ends of the heald frames is longer, and the connecting tool is connected to the end of the heald frames in the spacer portion. With this structure, the arrangement distance of the heald frames in the warp direction can be shortened, and

3] 4344.ptd Page 11 200303382 V. Description of the invention (7) The heald frame at the mouth position is arranged closer to the weaving mouth, which can reduce the amount of movement of the heald frame required to obtain a warp yarn opening suitable for weft insertion than a conventional device. . Therefore, warp damage to warp can be reduced, fluff and yarn breakage can be suppressed, and energy consumption for reciprocating movement of the heald frame can be saved. According to item 2 of the scope of the patent application, since the linker and the spacer are not provided integrally, the required size can be easily ensured by setting the size of the spacer. According to item 3 of the scope of patent application, since the spacer and the joint are integrally provided, the number of parts is reduced, and the manufacturing is simple. • According to item 4 of the scope of patent application, the spacer is integrated with the heald frame, so the spacer can be easily manufactured in the heald frame manufacturing process. According to item 5 of the scope of the patent application, since the wall thickness of the partition is formed to be thinner than the wall thickness of the heald frame, the row of the heald frame along the warp direction can be minimized as much as possible. According to item 6 of the scope of the patent application, in the warp opening device, the escape portion is formed on the heald frame, so that it can be covered by the reciprocating movement of the adjacent connecting device, and the adjacent connecting device can be escaped from here. As the first item in the scope of patent application, it can shorten the arrangement distance of the heald frame in the warp direction, reduce the damage to the warp yarn, and suppress the hair and yarn breakage. Also, each heald frame can be as much as possible. Light weight can save energy consumption for heald frame reciprocating movement.

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314344.ptd Page 12 200303382 Brief description of drawings [Simplified description of drawings] Fig. 1 is a front view of an embodiment of the present invention. Fig. 2 is a side view of the embodiment of the present invention. Fig. 3 is a front view of the embodiment of the present invention. Fig. 4 is a side view of the embodiment of the present invention. Fig. 5 is a front view of an embodiment of the present invention. Fig. 6 is a side view of the embodiment of the present invention. Fig. 7 is a front view of an embodiment of the present invention. Fig. 8 is a side view of the embodiment of the present invention. I Warp opening device 3 Reciprocating driving member 5 Spacer 7 Warp 9 Fixing device II Point of warp opening device of escape section 1 Point of warp opening device Part 2 Point of warp opening device 2 Warp of warp Main point of the opening device Part 3 Main point of the warp opening device 3 Main point of the warp opening device 4 Main point of the warp opening device 4 Main point of the warp opening device 2 Heald frame 4 Connector 6 Installation Bolt 8 Side guide 10 Fixing guide 21

314344.ptd Page 13 200303382 Brief description of the diagram 31 Push-up lever 32 Steel cable 40 Connection pin 41 Connection base 42 Combination body 43 Rod pin 44 Mounting bolt 45 Hole 46 Coupler L 47 Grease nipple 48 Screw portion 49 Combination body 51 Upper end 52 Lower end portion 53 Extension portion 54 Space portion L Length L1 Maximum relative distance

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Claims (1)

200303382 VI. Scope of patent application 1. A warp opening device is a device for freely connecting and connecting a plurality of heald frames and reciprocating driving members. The connecting devices are arranged at positions which are not repeated along the weaving width direction between adjacent heald frames. It is characterized in that: a space is provided between the end of the heald frame and the connecting tool, and the distance is longer than the maximum relative distance between the end of the heald frame and the end of the adjacent heald frame in reciprocating motion, and The spacer is connected to the end of the heald frame in the spacer. 2. The warp opening device according to item 1 of the patent application scope, wherein the aforementioned spacer is not provided integrally with the aforementioned connector. 3. The warp yarn opening device according to item 1 of the scope of the patent application, wherein the aforementioned spacer is integrally provided with the aforementioned connector. 4. The warp yarn opening device according to item 1 of the patent application scope, wherein the aforementioned partition is integrally provided with the aforementioned heald frame. 5. For the warp yarn opening device according to claim 2, 3 or 4, wherein the wall thickness of the aforementioned spacer is formed to be thinner than that of the heald frame. 6. —A warp yarn opening device is a device for freely connecting and connecting a plurality of heald frames and a reciprocating driving member at positions that do not overlap in the width direction of weaving between adjacent heald frames, which are characterized by: The aforesaid heald frame forms a retreat portion that can retreat from within the reciprocating range of the adjacent link. 314344.pid Page 15