A weft thread pick-up sword suitable for use with a variety of yarns

Abstract

This utility model provides a weft-joining rapier adaptable to various yarns, relating to the field of textile machinery technology. It includes a weft-joining rapier body with a clamping and adjusting mechanism positioned above it. The clamping and adjusting mechanism includes two clamping moving blocks, each positioned above the weft-joining rapier body. Each clamping moving block has two sliding limiting cylinders fixedly connected to its inner wall, with threaded cylinders fixedly connected to the ends of the two sliding limiting cylinders that are far apart from each other. This weft-joining rapier adaptable to various yarns utilizes a manually rotated screw, causing the rotating screw to slide and rotate within the sliding limiting cylinders along with the connecting rod and sliding ring. Because the sliding ring contacts the pushing ring, the compression spring extends and retracts, adjusting the clamping force of the weft-joining rapier's clamping structure. This allows the two clamping plates to move closer together to clamp yarns of different thicknesses and materials, ensuring the weft-joining rapier's clamping structure can hold various types of yarns.

Description

Technical Field

[0001] This utility model relates to a weft-joining scissor head, specifically a weft-joining scissor head adaptable to various yarns, and belongs to the field of textile machinery technology. Background Technology

[0002] Rapier looms are widely used in modern textile production. They are widely used in shuttleless looms and have the characteristics of high speed, high performance and high efficiency of shuttleless looms. As a key component of rapier looms, the weft feed rapier head undertakes the important task of receiving the weft yarn from the feed rapier head and introducing it into the weave.

[0003] A novel weft-joining rapier head disclosed in Chinese Patent Application Publication CN217809880U includes a housing, a clamping rod, a pressure plate, a positioning block, and a rotating component. The housing is equipped with a rapier hook and a spring seat. One end of the clamping rod is fixed inside the rapier hook, and the other end passes through the positioning block and is linked with the spring seat. This technical solution has the advantages of simple structure, more secure clamping rod fixation, less breakage, and effective prevention of fabric scratches. However, the structure of this weft-joining rapier head is relatively fixed, and the size and clamping force of its clamping structure are difficult to adjust. This makes it difficult to achieve good adaptation when facing yarns of different thicknesses and materials. When clamping thinner yarns, the clamping force may be too large, causing yarn damage. When clamping thicker yarns, the clamping may be weak, resulting in weft yarn overlap failure, affecting fabric quality and production efficiency. Different yarn materials have different surface friction, and this weft-joining rapier head cannot guarantee stable and reliable clamping of various yarns, limiting the application of rapier looms in diversified yarn weaving.

[0004] Therefore, a weft insertion dagger adapted for use with various yarns is proposed here. Utility Model Content

[0005] This invention proposes a weft-joining scissor head adaptable to various yarns, in order to solve the problem in the prior art that the clamping structure of the weft-joining scissor head cannot be used to stably and reliably clamp various yarns of different thicknesses and materials.

[0006] This utility model is achieved through the following technical solution: a weft-joining scissor head adapted for various yarns, including a weft-joining scissor head body, and a clamping and adjusting mechanism is provided above the weft-joining scissor head body;

[0007] The clamping and adjusting mechanism includes two clamping moving blocks, each of which is positioned above the weft insertion tweezer head body. Two sliding limiting cylinders are fixedly connected to the inner wall of each clamping moving block. A threaded cylinder is fixedly connected to the far ends of the two sliding limiting cylinders. A rotating screw is threadedly connected inside each threaded cylinder. Connecting rods arranged in equal circumferential distances are fixedly connected to the near ends of the two rotating screws. Sliding rotating rings are fixedly connected to the near ends of the two sets of connecting rods. The two sliding rotating rings are slidably connected to the interiors of the two sliding limiting cylinders. A pushing ring is slidably connected inside each sliding limiting cylinder. The near sides of the two sliding rotating rings contact the far sides of the two pushing rings. Compression springs are fixedly connected to the near sides of the two pushing rings. Supporting auxiliary rods are slidably connected inside each compression spring. The two supporting auxiliary rods are slidably connected to the interiors of the two sliding rotating rings and the two pushing rings, respectively.

[0008] The weft insertion head body is provided with a position adjustment component on the outside, and a replacement component is provided on the top of the weft insertion head body.

[0009] The position adjustment assembly includes a mounting block. The inner wall of the mounting block is fixedly connected to the outer surface of the weft insertion head body. A sliding groove is formed on the upper surface of the mounting block. Each clamping moving block is slidably connected to the inside of the sliding groove. A limiting slider is fixedly connected to the bottom surface of each clamping moving block. Each limiting slider is slidably connected to the inside of the sliding groove. A fastening bolt is rotatably connected inside each limiting slider. Two extrusion plates are sleeved on the outer surface of each fastening bolt. The sides of the two sets of extrusion plates that are close to each other are in contact with the two sides of the mounting block. The bottom surface of each set of extrusion plates is in contact with the upper surface of the weft insertion head body. The right ends of the two fastening bolts pass through the two extrusion plates and the limiting sliders in sequence and extend to the top of the weft insertion head body.

[0010] The replacement assembly includes two clamping plates, the bottom surface of each clamping plate being in contact with the upper surface of the mounting block, and the opposite sides of the two clamping plates being fixedly connected to the opposite ends of two compression springs and the opposite ends of two support rods.

[0011] The two clamping plates are fixedly connected to each other on their adjacent sides with first hook and loop fasteners. The two clamping plates are provided with anti-slip pads on their adjacent sides. The two anti-slip pads are fixedly connected to each other on their opposite sides with second hook and loop fasteners. The adjacent sides of the two first hook and loop fasteners are respectively bonded to the opposite sides of the two second hook and loop fasteners.

[0012] Each of the two rotating screws has a torsion disc fixedly connected to its opposite end, and each of the two torsion discs has a torsion buckle fixedly connected to its opposite side.

[0013] An L-shaped pointer is fixedly connected to the left side of each of the clamping moving blocks, and a scale is fixedly connected to the left side of the mounting block. The inner sidewall of each L-shaped pointer is in contact with the left side of the scale.

[0014] This invention provides a weft-joining tassel suitable for various yarns, which has the following beneficial effects:

[0015] 1. This weft-joining rapier, adaptable to various yarns, utilizes a manually twisted screw inside a threaded cylinder to allow the screw, along with a connecting rod and a sliding ring, to slide and rotate within a fixed sliding limit cylinder in the clamping moving block. Because the sliding ring contacts the pushing ring, the compression spring can easily extend and retract, adjusting the clamping force of the weft-joining rapier's clamping structure. This allows the two clamping plates to come close together to clamp yarns of different thicknesses and materials, ensuring stable and reliable clamping of various yarns by the weft-joining rapier's clamping structure.

[0016] 2. This weft-joining rapier, adaptable to various yarns, utilizes a sliding groove on the mounting block to allow the clamping moving block and the limiting slider to slide within it, adjusting the distance between the two clamping moving blocks. Furthermore, by manually twisting the rotating fastening bolt inside the limiting slider, the two extrusion plates surrounding the fastening bolt are brought closer together, thereby compressing the mounting block and fixing the positions of the clamping moving block and the limiting slider within the sliding groove. This enables stable clamping of yarns of different thicknesses and materials, further improving the stable and reliable clamping capability of the weft-joining rapier for various yarns of different thicknesses and materials. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the weft insertion dagger head of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the anti-slip mat of this utility model;

[0019] Figure 3 This is a schematic diagram of the limiting slider of this utility model;

[0020] Figure 4 This is a schematic diagram of the compression spring of this utility model.

[0021] Explanation of reference numerals in the attached figures

[0022] 1. Weft insertion scissor head body;

[0023] 2. Clamping and adjusting mechanism; 201. Clamping moving block; 202. Sliding limiting cylinder; 203. Threaded cylinder; 204. Rotating screw; 205. Connecting rod; 206. Sliding rotating ring; 207. Pushing ring; 208. Compression spring; 209. Support auxiliary rod;

[0024] 3. Position adjustment assembly; 301. Mounting block; 302. Sliding groove; 303. Limiting slider; 304. Fastening bolt; 305. Extrusion plate;

[0025] 4. Replace components; 401. Clamping plate; 402. Anti-slip pad; 403. First Velcro strap; 404. Second Velcro strap;

[0026] 5. Torque dial; 6. Torque buckle; 7. L-shaped pointer; 8. Scale ruler. Detailed Implementation

[0027] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this application.

[0028] Please see Figures 1-4 This utility model embodiment provides a weft-joining scissor head adapted for various yarns, including a weft-joining scissor head body 1, and a clamping and adjusting mechanism 2 is provided above the weft-joining scissor head body 1;

[0029] Please refer to this carefully. Figure 2 , Figure 3 and Figure 4 The clamping adjustment mechanism 2 includes two clamping moving blocks 201, each clamping moving block 201 being positioned above the weft insertion scissor head body 1. Two sliding limiting cylinders 202 are fixedly connected to the inner wall of each clamping moving block 201. A threaded cylinder 203 is fixedly connected to the ends of the two sliding limiting cylinders 202 that are far apart from each other. A rotating screw 204 is threadedly connected inside each threaded cylinder 203. A torsion disc 5 is fixedly connected to the ends of the two rotating screws 204 that are far apart from each other. A torsion buckle 6 is fixedly connected to the sides of the two torsion discs 5 that are far apart from each other. By manually squeezing the torsion buckle 6, the rotating screw 204 can be twisted using the torsion disc 5, facilitating the rotation of the rotating screw 204 within the threaded cylinder 203, thereby facilitating the adjustment of the clamping force of the weft insertion scissor head clamping structure.

[0030] Please refer to this carefully. Figure 4Two rotating screws 204 are fixedly connected to each other at their close ends with connecting rods 205 arranged in a circular pattern at equal intervals. Two sets of connecting rods 205 are fixedly connected to each other at their close ends with sliding rings 206. The two sliding rings 206 are slidably connected to the inside of two sliding limiting cylinders 202. Each sliding limiting cylinder 202 is slidably connected to a pushing ring 207. The sides of the two sliding rings 206 that are close to each other are in contact with the sides of the two pushing rings 207 that are far apart from each other. Compression springs 208 are fixedly connected to the sides of the two pushing rings 207 that are close to each other. Each compression spring 208 is slidably connected to a support auxiliary rod 209. The two support auxiliary rods 209 are slidably connected to the inside of the two sliding rings 206 and the inside of the two pushing rings 207, respectively.

[0031] Please refer to this carefully. Figure 1 and Figure 2 The weft insertion head body 1 is provided with a position adjustment component 3 on its exterior and a replacement component 4 on its top. The position adjustment component 3 includes a mounting block 301. The inner wall of the mounting block 301 is fixedly connected to the outer surface of the weft insertion head body 1. Each clamping moving block 201 has an L-shaped pointer 7 fixedly connected to its left side and a scale 8 fixedly connected to its left side. The inner sidewall of each L-shaped pointer 7 is in contact with the left side of the scale 8. By sliding the clamping moving block 201 inside the mounting block 301, the L-shaped pointer 7 can slide along the scale 8, thereby facilitating the reading of the distance between the two clamping moving blocks 201.

[0032] Please refer to this carefully. Figure 1 , Figure 2 and Figure 3 The upper surface of the mounting block 301 is provided with a sliding groove 302. Each clamping moving block 201 is slidably connected to the inside of the sliding groove 302. The bottom surface of each clamping moving block 201 is fixedly connected with a limit slider 303. Each limit slider 303 is slidably connected to the inside of the sliding groove 302. A fastening bolt 304 is rotatably connected inside each limit slider 303. Two extrusion plates 305 are sleeved on the outer surface of each fastening bolt 304. The sides of the two sets of extrusion plates 305 that are close to each other are in contact with the two sides of the mounting block 301 respectively. Each set of extrusion plates 305... The bottom surface of plate 305 is in contact with the upper surface of the weft insertion head body 1. The right ends of the two fastening bolts 304 pass through the two extrusion plates 305 and the limiting slider 303 respectively and extend to the top of the weft insertion head body 1. By manually rotating the fastening bolts 304 inside the limiting slider 303, the two extrusion plates 305 sleeved outside the fastening bolts 304 can be brought close to both sides of the extrusion mounting block 301 by the cooperation of the fastening bolts 304 and the nuts, thereby enabling stable positioning of the limiting slider 303 and the clamping moving block 201 in the sliding groove 302.

[0033] Please refer to this carefully. Figure 2 and Figure 4 The replacement component 4 includes two clamping plates 401. The bottom surface of each clamping plate 401 is in contact with the upper surface of the mounting block 301. The two clamping plates 401 are fixedly connected to the opposite sides of the two compression springs 208 and the opposite sides of the two support rods 209, respectively. By bringing the two clamping plates 401 close together, it is possible to apply clamping force to yarns of different thicknesses and materials. The compression force of the compression springs 208 can be adjusted to facilitate stable clamping of yarns of different thicknesses and materials.

[0034] Please refer to this carefully. Figure 2 and Figure 4 Each of the two clamping plates 401 has a first Velcro 403 fixedly connected to one side of each other. Each of the two clamping plates 401 has an anti-slip pad 402 on one side of each other. Each of the two anti-slip pads 402 has a second Velcro 404 fixedly connected to one side of each other. The sides of the two first Velcro 403 that are close to each other are respectively bonded to the sides of the two second Velcro 404 that are far apart. Since the two clamping plates 401 and the two anti-slip pads 402 are bonded together by the first Velcro 403 and the second Velcro 404, it is convenient to replace the anti-slip pads 402 with different surface textures according to the different yarn materials, so as to stably clamp yarns of different thicknesses and materials.

[0035] In use, when the clamping structure of the weft insertion head is needed to clamp yarns of different thicknesses and materials, the clamping moving block 201 and the limiting slider 303, which slide within the sliding groove 302 on the mounting block 301, are manually moved. This allows the two anti-slip pads 402 between the two clamping moving blocks 201 to move closer or further apart until the clamping moving blocks 201 and the limiting slider 303 are moved to a suitable distance. Simultaneously, the L-shaped pointer 7 fixed on one side of the clamping moving block 201 can be used to measure along the scale fixed on one side of the mounting block 301. The ruler 8 slides so that the two L-shaped pointers 7 can be used to measure the size of the ruler 8, and the distance between the two clamping moving blocks 201 can be measured. This allows for precise control and determination of the distance between the two clamping moving blocks 201. By manually twisting the fastening bolt 304 in the limiting slider 303, the fastening bolt 304 and the nut can be used to bring the two pressing plates 305 closer together until the two pressing plates 305 are in close contact with the sides of the mounting block 301, thereby stably positioning the limiting slider 303 and the clamping moving block 201 in the sliding groove 302.

[0036] Next, by manually holding the two anti-slip pads 402, since the two clamping plates 401 and the two anti-slip pads 402 are attached together by the first hook and loop fastener 403 and the second hook and loop fastener 404, it is convenient to manually pull the anti-slip pads 402 to prevent the first hook and loop fastener 403 from being attached to the second hook and loop fastener 404, thus making it convenient to replace the two anti-slip pads 402 according to the friction of different yarn materials;

[0037] Then, by manually pinching the torsion buckle 6, the rotating screw 204 inside the threaded cylinder 203 can be easily rotated through the torsion disc 5. Since the threaded cylinder 203 and the rotating screw 204 are threadedly connected, the rotation of the rotating screw 204 can drive the connecting rod 205 and the sliding ring 206 fixed at one end of the rotating screw 204 to slide and move within the sliding limit cylinder 202. Since a push ring 207 is provided on one side of the sliding ring 206, and a compression spring 208 is fixed between the push ring 207 and the clamping plate 401, the compression spring can be compressed. Compression occurs at 208, thereby adjusting the clamping force of the two anti-slip pads 402 on the yarn. It also allows the support auxiliary rod 209 fixed on one side of the clamping plate 401 to slide along the sliding ring 206 and the pushing ring 207, thereby improving the stability of the clamping plate 401 and the anti-slip pads 402. This allows for the stable clamping of various yarns of different thicknesses and materials through the clamping structure of the weft insertion head. Finally, the weft insertion head is used manually to take the weft yarn from the weft feed head and deliver the weft yarn to the other side of the loom, thus completing the important task of laying the weft yarn of the fabric.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A weft thread pick-up sword suitable for use with a variety of yarns comprising a weft thread pick-up sword body (1) characterised in that: A clamping and adjusting mechanism (2) is provided above the main body (1) of the weft insertion sword; The clamping adjustment mechanism (2) includes two clamping moving blocks (201). Each clamping moving block (201) is disposed above the weft insertion dagger head body (1). The inner wall of each clamping moving block (201) is fixedly connected to two sliding limiting cylinders (202). The ends of the two sliding limiting cylinders (202) that are far apart from each other are fixedly connected to threaded cylinders (203). The interior of each threaded cylinder (203) is threadedly connected to a rotating screw (204). The ends of the two rotating screws (204) that are close to each other are fixedly connected to connecting rods (205) arranged in a circular pattern at equal intervals. The ends of the two sets of connecting rods (205) that are close to each other are fixedly connected to sliding rotating rings (205). 6) The two sliding rings (206) are slidably connected to the inside of the two sliding limiting cylinders (202), and each sliding limiting cylinder (202) is slidably connected to a pushing ring (207). The side of the two sliding rings (206) that are close to each other is in contact with the side of the two pushing rings (207) that are far apart from each other. The side of the two pushing rings (207) that are close to each other is fixedly connected to a compression spring (208). Each compression spring (208) is slidably connected to a support auxiliary rod (209). The two support auxiliary rods (209) are slidably connected to the inside of the two sliding rings (206) and the inside of the two pushing rings (207). The weft insertion head body (1) is provided with a position adjustment component (3) on the outside, and a replacement component (4) is provided on the top of the weft insertion head body (1).

2. The weft insertion tassel according to claim 1, characterized in that: The position adjustment component (3) includes a mounting block (301). The inner wall of the mounting block (301) is fixedly connected to the outer surface of the weft insertion head body (1). A sliding groove (302) is provided on the upper surface of the mounting block (301). Each clamping moving block (201) is slidably connected to the inside of the sliding groove (302). A limiting slider (303) is fixedly connected to the bottom surface of each clamping moving block (201). Each limiting slider (303) is slidably connected to the inside of the sliding groove (302). 03) is rotatably connected with fastening bolts (304). Each fastening bolt (304) has two extrusion plates (305) on its outer surface. The two sets of extrusion plates (305) are close to each other on one side and respectively contact the two sides of the mounting block (301). The bottom surface of each set of extrusion plates (305) is in contact with the upper surface of the weft insertion head body (1). The right ends of the two fastening bolts (304) pass through the two extrusion plates (305) and the limiting slider (303) in sequence and extend to the top of the weft insertion head body (1).

3. A weft-joining rapier adapted for various yarns according to claim 2, characterized in that: The replacement component (4) includes two clamping plates (401), the bottom surface of each clamping plate (401) is in contact with the upper surface of the mounting block (301), and the two clamping plates (401) are fixedly connected to the ends of the two compression springs (208) and the ends of the two support rods (209) respectively.

4. A weft-joining tassel adapted for various yarns according to claim 3, characterized in that: Each of the two clamping plates (401) has a first Velcro (403) fixedly connected to one side that is close to each other. Each of the two clamping plates (401) has an anti-slip pad (402) on one side that is close to each other. Each of the two anti-slip pads (402) has a second Velcro (404) fixedly connected to one side that is far from each other. The two first Velcro (403) are respectively bonded to the two second Velcro (404) on the side that is far from each other.

5. A weft-joining rapier according to claim 1, characterized in that: The two rotating screws (204) are fixedly connected to a torsion disc (5) at their ends that are far apart from each other, and the two torsion discs (5) are fixedly connected to a torsion buckle (6) on their sides that are far apart from each other.

6. A weft-joining rapier adapted for various yarns according to claim 2, characterized in that: Each of the clamping moving blocks (201) has an L-shaped pointer (7) fixedly connected to its left side, and a scale (8) is fixedly connected to the left side of the mounting block (301). The inner sidewall of each of the L-shaped pointers (7) is in contact with the left side of the scale (8).

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