Weft yarn scissors device of shuttleless loom

Abstract

The utility model discloses a shuttleless loom weft yarn scissor device which comprises a scissor base, a fixing block is arranged in the middle of the top of the scissor base, a motor is arranged at one end of the front face of the fixing block, a driving wheel is arranged at the output end of the motor, and a fixed scissor handle is arranged in the middle of one end of the front face of the scissor base. A movable tool holder is hinged to the middle of one end of the front face of the fixed tool holder, a hinge rod is hinged to the edge of the side, away from the scissor base, of the top of the movable tool holder, and the end, away from the movable tool holder, of the hinge rod is hinged to the bottom of one end of the front face of the driving wheel. The shearing function of the shuttleless loom weft yarn scissor device can be achieved through mutual cooperation of the scissor base, the fixed scissor handle, the first scissor head, the driving wheel, the motor, the hinge rod, the movable scissor handle and the second scissor head, and compared with the structural design of a traditional scissor device, the whole structure is simple, operation is convenient and fast, the shearing efficiency is high, later-period manufacturing and production are convenient, and the practicability is high. And the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of shuttleless loom scissors, in particular to a weft yarn scissors device for a shuttleless loom. Background Art

[0002] When a shuttleless loom is weaving, the weft yarn needs to be cut after each weft yarn is delivered before the next weft can be delivered and weaved. The accurate shearing action of the scissors is the most important basis for the correct operation of the loom. Therefore, it is necessary to design a shuttleless loom weft scissors device.

[0003] The weft yarn scissors device in the prior art is composed of a series of accessories such as a central shaft, a chain, a tensioning wheel, a scissors box, an up and down action type weft yarn scissors device, a cam and an eccentric shaft. The eccentric wheel is driven to rotate by the chain, and further drives the up and down action type weft yarn scissors device to open and close continuously, thereby cutting the weft yarn. During use, this structure is found to have complex structure, high price, easy damage, and difficult and frequent repair and maintenance. Moreover, the scissors heads are mostly designed as an integrated structure. When the scissors heads become dull and need to be replaced later, the entire scissors need to be disassembled and replaced, which reduces the inconvenience and tediousness of later replacement. Utility Model Content

[0004] The purpose of the utility model is to provide a shuttleless loom weft yarn scissors device, which is convenient for realizing the characteristics of the shuttleless loom weft yarn scissors device with simple overall structure, high cutting efficiency and strong practicality, and is convenient for the subsequent replacement operation of the scissors head alone, without the need for an operator to disassemble and replace the entire scissors, thereby improving the convenience and flexibility of subsequent replacement and maintenance.

[0005] To achieve the above-mentioned purpose, a shuttleless loom weft scissors device is provided, comprising: a scissors seat, a fixed block is provided at the middle position of the top of the scissors seat, a motor is provided at one end of the front of the fixed block, a driving wheel is provided at the output end of the motor, a fixed knife handle is provided at the middle position of one end of the front of the scissors seat, a movable knife handle is hingedly provided at the middle position of one end of the front of the fixed knife handle, a hinged rod is hingedly provided at the edge of the top of the movable knife handle away from the scissors seat, one end of the hinged rod away from the movable knife handle is hinged to the bottom of one end of the front of the driving wheel, and a fixed limiting component is provided on one side of the fixed knife handle and the movable knife handle away from the hinged rod, so as to realize the characteristics of simple overall structure, high cutting efficiency and strong practicality of the shuttleless loom weft scissors device, and facilitate the replacement operation of the scissors head separately in the later stage, without the need for the operator to disassemble and replace the entire scissors, thereby improving the convenience and flexibility of later replacement and maintenance.

[0006] According to the described weft yarn scissors device for a shuttleless loom, the fixed limiting component comprises a connecting rod, an installation bin, a slot, a spring 1, a limiting push block, a knife head 1 and a knife head 2, the slots are provided with two groups, the two groups of slots are provided on the side of the fixed knife handle and the movable knife handle away from the hinge rod, the interiors of the two groups of slots are both inserted with connecting rods extending to the outside thereof, the two groups of connecting rods are respectively provided with a knife head 1 and a knife head 2 on the side away from the fixed knife handle and the movable knife handle, the installation bins are provided with four groups, the four groups of installation bins are located on the side of the top and bottom of the fixed knife handle and the movable knife handle close to the slots, the four groups of installation bins are provided with a limiting push block on the side close to the connecting rod, the four groups of installation bins are provided with a spring 1 connected to the limiting push block on the side away from the limiting push block, and the tops and bottoms of the two groups of slots are provided with clamping components to facilitate the positioning work of the clamping fixation.

[0007] According to the described weft yarn scissors device of a shuttleless loom, the engaging assembly includes a slot, a locking rod, two springs, a slider, a slide groove and a through-port. The through-port and the slot are provided in four groups. The four groups of the slots are provided at the top and bottom of the two groups of connecting rods on one side close to the slots, the four groups of through-ports are provided at the top and bottom inside the two groups of slots, and the through-ports are communicated with the interior of the installation bin. The interiors of the four groups of through-ports are all penetrated by a locking rod extending into the slot and engaging with the slot, and the locking rod cooperates with a limiting push block. The four groups of the locking rods are provided with a slide groove on one side away from the limiting push block, the interiors of the four groups of slide grooves are all slidably provided with a slider connected to the through-port, and the interiors of the four groups of slide grooves are all provided with two springs connected to the slider, so as to realize the fixed insertion of the cutter head.

[0008] According to the described weft yarn scissors device for a shuttleless loom, through grooves are provided on the inner tops of the two groups of mounting bins and on the inner bottoms of the two groups of mounting bins, and push blocks connected to the limit push blocks are penetrated inside the through grooves, so that the operator can push the limit push blocks to move so as to facilitate the disassembly and replacement of the cutter head at a later stage.

[0009] According to the described weft yarn scissors device for a shuttleless loom, the bottom of the two groups of limit push blocks close to the clamping rod and the top of the two groups of limit push blocks close to the clamping rod, the top of the two groups of clamping rods close to the limit push block and the bottom of the two groups of clamping rods close to the limit push block are all provided with guiding inclined surfaces, and the two groups of guiding inclined surfaces cooperate with each other, so that the later limiting push blocks can push the clamping rod to move through the guiding inclined surfaces to realize the engaging operation.

[0010] According to the described weft yarn scissors device for a shuttleless loom, a hinge seat is provided on the side of the top of the movable knife handle away from the scissors seat and on the top of the front end of the driving wheel, and the hinge seat cooperates with the hinge rod to facilitate the installation and hinge work of the remaining hinge rod.

[0011] According to the described weft yarn scissors device for a shuttleless loom, a positioning rod is provided at the middle position of one end of the front side of the fixed knife handle, and the positioning rod penetrates into the interior of the movable knife handle and cooperates with it, so as to facilitate the installation and hinge work of the movable knife handle so that the movable knife handle can be rotated along the positioning rod to realize the shearing work later.

[0012] According to the shuttleless loom weft scissors device, the exteriors of the spring 1 and the spring 2 are sprayed with an anti-rust coating to prevent rust from affecting the subsequent use effect.

[0013] Compared with the prior art, the utility model has the following beneficial effects: through the cooperation of the scissor seat, the fixed knife handle, the knife head one, the driving wheel, the motor, the hinged rod, the movable knife handle and the knife head two, the shearing function of the shuttleless loom weft scissor device can be realized. Compared with the traditional scissor device structure design, the structure is simpler as a whole, easy to operate, high in shearing efficiency, and convenient for later manufacturing and production, reducing production costs and having good practicality;

[0014] At the same time, through the mutual cooperation of the connecting rod, the installation bin, the clamping rod, the slot, the clamping groove, the spring one, the limit push block, the spring two, the slider, the slide groove and the through opening, the disassembly and replacement of the blade head of the scissors device can be easily realized, so that the operator can replace the blade head one or the blade head two separately at a later time without the need to disassemble and replace the entire scissors device. The operator only needs to move the limit protrusion inside the installation bin, thereby further improving the practicability of the device.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0017] Figure 1 It is a three-dimensional structural schematic diagram of a scissor seat of a weft scissor device of a shuttleless loom according to the utility model;

[0018] Figure 2 It is a three-dimensional structural schematic diagram of a fixed knife handle of a weft yarn scissors device of a shuttleless loom according to the utility model;

[0019] Figure 3 This is a three-dimensional structural schematic diagram of a weft scissor device for a shuttleless loom according to the utility model;

[0020] Figure 4 This is a front sectional view of a weft scissor device for a shuttleless loom according to the utility model;

[0021] Figure 5This is a front view of a weft scissor device for a shuttleless loom according to the utility model;

[0022] Figure 6 The utility model is a weft scissor device for shuttleless loom Figure 4 A magnified image of point A;

[0023] Figure 7 The utility model is a weft scissor device for shuttleless loom Figure 6 Enlarged view of point B.

[0024] In the figure: 1. scissor seat; 2. fixed knife handle; 3. knife head 1; 4. driving wheel; 5. mounting compartment; 6. connecting rod; 7. limit push block; 8. spring 1; 9. slot; 10. slot; 11. clamping rod; 12. spring 2; 13. slider; 14. slide groove; 15. through port; 16. movable knife handle; 17. knife head 2; 18. hinged rod; 19. motor; 20. fixed block. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-7 The utility model embodiment provides a technical solution: a shuttleless loom weft scissors device, comprising: a scissors seat 1, a fixed block 20 is provided at the middle position of the top of the scissors seat 1, a motor 19 is provided at the front end of the fixed block 20, and a driving wheel 4 is provided at the output end of the motor 19, a fixed knife handle 2 is provided at the middle position of the front end of the scissors seat 1, a movable knife handle 16 is hingedly provided at the middle position of the front end of the fixed knife handle 2, a hinged rod 18 is hingedly provided at the edge of the top of the movable knife handle 16 away from the scissors seat 1, and the end of the hinged rod 18 away from the movable knife handle 16 is hinged to the bottom of the front end of the driving wheel 4, and a fixed limit assembly is provided on the side of the fixed knife handle 2 and the movable knife handle 16 away from the hinged rod 18.

[0027] The fixed limiting assembly comprises a connecting rod 6, an installation bin 5, a slot 10, a spring 18, a limiting push block 7, a cutter head 13 and a cutter head 2 17. Two groups of slots 10 are provided, and the two groups of slots 10 are provided on the side of the fixed knife handle 2 and the movable knife handle 16 away from the hinge rod 18. The interiors of the two groups of slots 10 are both provided with a connecting rod 6 extending to the outside thereof. The two groups of connecting rods 6 are respectively provided with a cutter head 13 and a cutter head 2 17 on the side away from the fixed knife handle 2 and the movable knife handle 16. Four groups of installation bins 5 are provided, and the four groups of installation bins 5 are located on the top and bottom of the fixed knife handle 2 and the movable knife handle 16, close to the slot 10. The four groups of installation bins 5 are provided with a limiting push block 7 on the side close to the connecting rod 6. The four groups of installation bins 5 are provided with a spring 1 8 connected to the limiting push block 7 on the side away from the limiting push block 7. The top and bottom of the two groups of slots 10 are provided with a clamping assembly.

[0028] The engaging assembly includes a slot 9, a locking rod 11, a second spring 12, a slider 13, a slide 14 and a through-port 15. The through-port 15 and the slot 9 are provided in four groups. The four groups of slots 9 are provided at the top and bottom of the two groups of connecting rods 6, close to the slot 10. The four groups of through-ports 15 are provided at the top and bottom of the two groups of slots 10, and the through-ports 15 are communicated with the interior of the installation bin 5. The interiors of the four groups of through-ports 15 are all penetrated by a locking rod 11 extending into the slot 9 and engaging with it, and the locking rod 11 cooperates with the limiting push block 7. The four groups of locking rods 11 are provided with a slide 14 on the side away from the limiting push block 7. The interiors of the four groups of slide grooves 14 are all provided with a slider 13 connected to the through-port 15 for sliding movement, and the interiors of the four groups of slide grooves 14 are all provided with a second spring 12 connected to the slider 13.

[0029] Through grooves are formed on the inner tops of the two groups of installation bins 5 and the inner bottoms of the two groups of installation bins 5 , and push blocks connected to the limit push blocks 7 are penetrated inside the through grooves.

[0030] The bottom of the two groups of limit push blocks 7 close to the card rod 11, the top of the two groups of limit push blocks 7 close to the card rod 11, and the top of the two groups of card rods 11 close to the limit push block 7, and the bottom of the two groups of card rods 11 close to the limit push block 7 are all provided with guiding inclined surfaces, and the two groups of guiding inclined surfaces cooperate with each other.

[0031] A hinge seat is provided on the top of the movable knife handle 16 away from the scissor seat 1 and on the top of the front end of the driving wheel 4, and the hinge seat cooperates with the hinge rod 18.

[0032] A positioning rod is provided at the middle position of one end of the front side of the fixed knife handle 2, and the positioning rod penetrates into the interior of the movable knife handle 16 and cooperates therewith.

[0033] The exteriors of spring 1 8 and spring 2 12 are sprayed with an anti-rust coating.

[0034] Working principle: When in use, the operator can first install the scissor seat 1 and the above components to the designated position of the external shuttleless loom. When working, the motor 19 can realize the rotation of the driving wheel 4, and then the driving wheel 4 drives the hinged rod 18 to hinge and rotate, so that the hinged rod 18 can drive the movable knife handle 16 to drive the limit push block 7 along the hinge position at one end of the front side of the fixed knife handle 2 through a group of connecting rods 6 to rotate, so that the knife head 2 17 and the knife head 1 3 can be moved closer to realize the later weft yarn shearing operation. Compared with the traditional scissors device, the structural design of this component is simpler and easier to operate, which improves the convenience and flexibility of later shearing and reduces the later production and manufacturing cost;

[0035] At the same time, when it is necessary to disassemble and replace the cutter head 17 and the cutter head 13 in the later stage, the operator can directly pull the limit push block 7 to move inside the installation chamber 5 to realize the compression operation of the spring 1 8. The movement of the limit push block 7 can be away from the resistance with the clamping rod 11, and then the elastic restoring force of the spring 2 12 can drive the clamping rod 11 to move inside the through hole 15, and then drive the slide groove 14 to slide on the outside of the slide block 13, so that the clamping rod 11 can be separated from the inside of the clamping groove 9, and then the fixation of the cutter head 1 3 or the cutter head 17 can be released, and then the operator can take the cutter head 1 3 or the cutter head 2 17 to drive the connecting rod 6 to separate from the inside of the slot 10;

[0036] During later installation, the connecting rod 6 can be driven by the blade head 1 3 or the blade head 2 17 to be inserted into the inside of the slot 10, and then the limit push block 7 is released. Through the elastic restoring force of the spring 1 8, the limit push block 7 can be driven to move and recover inside the installation chamber 5, and then the guide inclined surface design on the side where the limit push block 7 and the clamping rod 11 are close to each other can make the limit push block 7 push the clamping rod 11 to move closer inside the through opening 15. At the same time, the elasticity of the spring 1 8 is greater than the elasticity of the spring 2 12, so that the slide groove 14 can be driven to move outside the slider 13 during the movement of the clamping rod 11 to stretch the spring 2 12, so that the clamping rod 11 can be moved and inserted into the inside of the clamping groove 9, and then the later fixed installation operation can be completed. The structural design of this component can facilitate the operator to realize the replacement operation of the blade head 1 3 or the blade head 2 17 separately, without the need to disassemble and replace the entire scissors device, thereby improving the convenience and flexibility of later replacement.

[0037] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A weft scissor device for a shuttleless loom, comprising: A scissors seat (1), characterized in that a fixed block (20) is provided at a middle position on the top of the scissors seat (1), a motor (19) is provided at a front end of the fixed block (20), a driving wheel (4) is provided at the output end of the motor (19), a fixed knife handle (2) is provided at a middle position on a front end of the scissors seat (1), a movable knife handle (16) is hingedly provided at a middle position on a front end of the fixed knife handle (2), a hinged rod (18) is hingedly provided at an edge of the top of the movable knife handle (16) away from the scissors seat (1), an end of the hinged rod (18) away from the movable knife handle (16) is hinged to the bottom of a front end of the driving wheel (4), and a fixed limit assembly is provided on the side of the fixed knife handle (2) and the movable knife handle (16) away from the hinged rod (18).

2. A weft scissor device for a shuttleless loom as claimed in claim 1, characterized in that: The fixed limiting assembly comprises a connecting rod (6), an installation bin (5), a slot (10), a spring 1 (8), a limiting push block (7), a cutter head 1 (3) and a cutter head 2 (17). The slots (10) are provided in two groups. The two groups of slots (10) are provided on a side of the fixed knife handle (2) and the movable knife handle (16) away from the hinge rod (18). The two groups of slots (10) are both provided with connecting rods (6) extending to the outside thereof. The two groups of connecting rods (6) are provided on a side of the fixed knife handle (2) and the movable knife handle (16) away from the hinge rod (18). One side is provided with a blade head 1 (3) and a blade head 2 (17), respectively; the installation bins (5) are provided with four groups; the four groups of installation bins (5) are located at the top and bottom of the fixed blade handle (2) and the movable blade handle (16) on one side close to the slot (10); the four groups of installation bins (5) are provided with a limit push block (7) on one side close to the connecting rod (6); the four groups of installation bins (5) are provided with a spring 1 (8) connected to the limit push block (7) on one side away from the limit push block (7); and the top and bottom of the two groups of slots (10) are provided with a clamping assembly.

3. A weft scissor device for a shuttleless loom as claimed in claim 2, characterized in that: The engaging assembly comprises a card slot (9), a card rod (11), a second spring (12), a slider (13), a slide slot (14) and a through-port (15). The through-port (15) and the card slot (9) are each provided with four groups. The four groups of the card slots (9) are provided at the top and bottom of the two groups of connecting rods (6) on one side close to the slot (10). The four groups of the through-port (15) are provided at the top and bottom of the two groups of slots (10). The through-port (15) is communicated with the interior of the installation compartment (5). The openings (15) of the four groups are all penetrated by a clamping rod (11) extending into the clamping groove (9) and clamped therewith, and the clamping rod (11) cooperates with the limiting push block (7). The four groups of clamping rods (11) are all provided with a sliding groove (14) on the side away from the limiting push block (7). The four groups of sliding grooves (14) are all slidably provided with a slider (13) connected to the openings (15). The four groups of sliding grooves (14) are all provided with a second spring (12) connected to the slider (13).

4. A weft scissor device for a shuttleless loom as claimed in claim 2, characterized in that: The inner tops of the two groups of installation bins (5) and the inner bottoms of the two groups of installation bins (5) are both provided with through grooves, and push blocks connected to the limit push blocks (7) are provided through the interiors of the through grooves.

5. A weft scissor device for a shuttleless loom as claimed in claim 2, characterized in that: The bottom of the two groups of limit push blocks (7) close to the clamping rod (11) and the top of the two groups of limit push blocks (7) close to the clamping rod (11), the top of the two groups of clamping rods (11) close to the limit push blocks (7) and the bottom of the two groups of clamping rods (11) close to the limit push blocks (7) are all provided with guiding inclined surfaces, and the two groups of guiding inclined surfaces cooperate with each other.

6. A weft scissor device for a shuttleless loom as claimed in claim 1, characterized in that: A hinge seat is provided on the top of the movable knife handle (16) at a side away from the scissor seat (1) and on the top of the front end of the driving wheel (4), and the hinge seat cooperates with the hinge rod (18).

7. A weft scissor device for a shuttleless loom as claimed in claim 1, characterized in that: A positioning rod is provided at the middle position of one end of the front face of the fixed knife handle (2), and the positioning rod penetrates into the interior of the movable knife handle (16) and cooperates therewith.

8. A weft scissor device for a shuttleless loom as claimed in claim 2, characterized in that: The exteriors of the spring 1 (8) and the spring 2 (12) are both sprayed with an anti-rust coating.

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