Weft drawing device of air jet loom

Abstract

The utility model provides a weft extraction device of an air-jet loom, which belongs to the technical field of air-jet looms and comprises a mounting plate, a cylinder and a fixing frame, a weft collecting channel is fixedly mounted at the top of the mounting plate, and an air nozzle corresponding to the weft collecting channel is fixedly mounted at the bottom of the mounting plate. The air cylinder, the first connecting rod, the second connecting rod, the cutting shear blade and the connecting plate are matched with one another, the second connecting rod can be driven by the first connecting rod to rotate around the rotating seat, and a movable sleeve installed at the bottom of the rotating seat can slide along the outer portion of a movable rod in the moving process of the second connecting rod; meanwhile, along with the overturning effect of the second connecting rod, a movable shaft installed at the other end of the second connecting rod can slide along the interior of a movable groove, the cutting blades rotate around an installation shaft, the cutting blades can get close to each other, and therefore the effect of cutting off the ends of the weft yarn is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of air-jet looms, in particular to a weft drawing device of an air-jet loom. Background Art

[0002] In the textile industry, air-jet looms are efficient and automated textile equipment, and their performance directly affects fabric quality and production efficiency. Existing air-jet loom weft drawing devices mostly adopt mechanical or pneumatic structural designs, controlling the weft yarn introduction and beating-up process through complex mechanical transmission or high-pressure airflow.

[0003] In the related art, in order to facilitate subsequent maintenance operations after the cast film machine has been used for a long time, the patent with publication number CN218951622U provides a weft drawing device for an air jet loom. The weft drawing device of the air jet loom is arranged on a fixed seat through a driving member and is located at one end of the second scissor blade away from the yarn inlet of the weft yarn collecting channel. The blades of the first scissor blade and the second scissor blade are located at the yarn inlet of the weft yarn feeding channel. A reset component is provided between the first scissor blade and the second scissor blade, and the end of the weft yarn is cut off by the shearing component, thereby reducing the workload of manually reducing the weft yarn.

[0004] Although the above-mentioned prior art solution cuts off the end of the weft yarn through the shearing assembly, thereby reducing the workload of manually reducing the weft yarn, it still has the following defects: the tension spring in the above-mentioned reset assembly ensures that the scissor blade can return to its initial position after shearing, but after long-term use, the spring will fatigue, causing the spring to relax, and it cannot ensure that the scissor blade can be smoothly reset, thereby affecting the effect of cutting the end of the weft yarn. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a weft drawing device for an air jet loom, which aims to solve the technical problem that long-term use causes spring relaxation, thereby affecting the effect of cutting the end of the weft yarn.

[0006] The utility model is achieved in this way:

[0007] The utility model provides a weft drawing device for an air jet loom, comprising: a mounting plate, a cylinder and a fixing frame, wherein a weft yarn collecting channel is fixedly mounted on the top of the mounting plate, an air jet nozzle corresponding to the weft yarn collecting channel is fixedly mounted on the bottom of the mounting plate, a cylinder is fixedly mounted on the top of the mounting plate on one side of the weft yarn collecting channel, an output end of the cylinder is movably connected to two first connecting rods, the outer ends of the two first connecting rods are movably connected to a second connecting rod, an end of the second connecting rod away from the first connecting rod is movably connected to a cutting blade extending to the weft yarn collecting channel, a fixing frame is fixedly mounted on the bottom of the mounting plate, a connecting sleeve that is docked with the bottom of the weft yarn collecting channel is fixedly mounted on one side of the fixing frame, a connecting frame is slidably mounted on the outer side of the fixing frame, and a clamping plate is fixedly mounted on the ends of the connecting frames that are close to each other through an elastic member.

[0008] Preferably, the air nozzle and the mounting plate are fixedly connected via a mounting bracket, and the first connecting rod and the output end of the cylinder are movably connected via a rotating shaft.

[0009] By adopting the above technical solution, the air nozzle can be installed on the bottom of the mounting plate through the mounting bracket, which is more convenient during use.

[0010] Preferably, the first connecting rod and the second connecting rod are rotatably mounted via a rotating seat, a movable sleeve is rotatably mounted on the bottom of the rotating seat, and the movable sleeve and the mounting plate are slidably mounted via a movable rod.

[0011] By adopting the above technical solution, the movable sleeve installed at the bottom of the rotating seat can slide along the outside of the movable rod during the movement of the second connecting rod, which can be more stable during the movement.

[0012] Preferably, the two cutting blades are rotatably mounted via a mounting shaft, and the top of the air nozzle is located inside the connecting sleeve.

[0013] By adopting the above technical solution, as the second connecting rod flips, the movable shaft installed at the other end of the second connecting rod can slide along the inside of the movable groove, so that the cutting blades rotate around the installation shaft, and the cutting blades can be brought closer to each other, thereby achieving the effect of cutting the end of the weft yarn.

[0014] Preferably, a connecting plate is fixedly mounted on the outer side of the cutting blade, a movable groove is provided on the inner side of the connecting plate, a movable shaft is movably mounted on the second connecting rod, and the movable shaft is slidably mounted inside the movable groove.

[0015] By adopting the above technical solution, the cutting blades rotate around the installation axis, so that the cutting blades can be brought closer to each other, thereby achieving the effect of cutting the ends of the weft yarns.

[0016] Preferably, a toggle opening is provided on one side of the connecting sleeve, and a roller is rotatably mounted on the inner side of the fixing frame.

[0017] By adopting the above technical solution, the weft yarn can be conveniently pulled through the toggle opening, so that the weft yarn can be placed in a better position, and the weft yarn can be guided by the roller.

[0018] Preferably, the fixing frame and the connecting frame are slidably mounted via a sliding groove, and a toggle sleeve is fixedly mounted on the outside of the connecting frame.

[0019] By adopting the above technical solution, the weft yarn can be clamped by the clamping plate, and the connecting frame is made to slide along the inside of the sliding groove by pulling the toggle sleeve, thereby transferring the weft yarn clamped by the clamping plate to the inside of the connecting sleeve.

[0020] The beneficial effects of the utility model are:

[0021] 1. The present application is provided with a cylinder, a first connecting rod, a second connecting rod, a cutting blade and a connecting plate that cooperate with each other. The telescopic action of the cylinder output end can drive the first connecting rod to move toward the front end, and the first connecting rod can drive the second connecting rod to rotate around the rotating seat. During the movement of the second connecting rod, the movable sleeve installed at the bottom of the rotating seat can slide along the outside of the movable rod, which can be more stable during the movement. At the same time, with the flipping action of the second connecting rod, the movable shaft installed at the other end of the second connecting rod can slide along the inside of the movable groove, so that the cutting blade rotates around the installation axis, which can make the cutting blades close to each other, thereby achieving the effect of cutting the end of the weft yarn.

[0022] 2. The present application is provided with a connecting frame, a clamping plate, a sliding groove and a toggle port that cooperate with each other. The clamping plate can clamp the weft yarn, and the toggle sleeve is pulled to make the connecting frame slide along the inside of the sliding groove, thereby transferring the weft yarn clamped on the clamping plate to the inside of the connecting sleeve. The toggle port can assist in controlling the weft yarn so that one end of the weft yarn can be located inside the connecting sleeve, thereby using the air nozzle to spray the weft yarn into the inside of the weft yarn collecting channel. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 This is a schematic diagram of the first appearance of a three-dimensional overall structure of a weft drawing device of an air jet loom disclosed in a preferred embodiment of the present application;

[0025] Figure 2 This is a schematic diagram of a second external three-dimensional overall structure of a weft drawing device of an air jet loom disclosed in a preferred embodiment of the present application;

[0026] Figure 3 A preferred embodiment of this application is disclosed Figure 2 A schematic diagram of the partially enlarged three-dimensional structure at center A;

[0027] Figure 4 This is a schematic diagram of the three-dimensional structure of the connecting sleeve disclosed in a preferred embodiment of the present application;

[0028] Figure 5 This is a schematic diagram of the three-dimensional structure of the connecting frame and the sliding slot disclosed in a preferred embodiment of the present application.

[0029] In the figure: 1. Mounting plate; 101. Weft yarn collecting channel; 102. Mounting frame; 103. Air nozzle; 2. Cylinder; 201. First connecting rod; 202. Rotating shaft; 203. Second connecting rod; 204. Rotating seat; 205. Movable rod; 206. Movable sleeve; 207. Cutting blade; 208. Mounting shaft; 209. Connecting plate; 210. Movable groove; 211. Movable shaft; 3. Fixing frame; 301. Connecting sleeve; 302. Toggle port; 303. Roller; 304. Connecting frame; 305. Sliding groove; 306. Clamping plate; 307. Toggle sleeve. DETAILED DESCRIPTION

[0030] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] Example, refer to Figure 1-Figure 5, a weft drawing device of an air jet loom, comprising a mounting plate 1, a cylinder 2 and a fixing frame 3, a weft collecting channel 101 being fixedly mounted on the top of the mounting plate 1, an air jet nozzle 103 corresponding to the weft collecting channel 101 being fixedly mounted on the bottom of the mounting plate 1, a cylinder 2 being fixedly mounted on the top of the mounting plate 1 on one side of the weft collecting channel 101, the output end of the cylinder 2 being movably connected to two first connecting rods 201, the outer ends of the two first connecting rods 201 being movably connected to a second connecting rod 203, an end of the second connecting rod 203 away from the first connecting rod 201 being movably connected to a cutting blade 207 extending to the weft collecting channel 101, a fixing frame 3 being fixedly mounted on the bottom of the mounting plate 1, a connecting sleeve 301 being fixedly mounted on one side of the fixing frame 3, The connecting frame 304 and the end of the connecting frame 304 close to each other are fixed with a clamping plate 306 through an elastic member. The telescopic effect of the output end of the cylinder 2 can drive the first connecting rod 201 to move to the front end, and the first connecting rod 201 can drive the second connecting rod 203 to rotate around the rotating seat 204. During the movement of the second connecting rod 203, the movable sleeve 206 installed at the bottom of the rotating seat 204 can slide along the outside of the movable rod 205, which can be more stable during the movement. At the same time, with the flipping effect of the second connecting rod 203, the movable shaft 211 installed at the other end of the second connecting rod 203 can slide along the inside of the movable groove 210, so that the cutting blades 207 rotate around the installation shaft 208, which can make the cutting blades 207 close to each other, thereby achieving the effect of cutting the end of the weft yarn.

[0032] Furthermore, the air nozzle 103 is fixedly connected to the mounting plate 1 through the mounting bracket 102, the first connecting rod 201 and the output end of the cylinder 2 are movably connected through the rotating shaft 202, the first connecting rod 201 and the second connecting rod 203 are rotatably installed through the rotating seat 204, and the bottom of the rotating seat 204 is rotatably installed with a movable sleeve 206, and the movable sleeve 206 and the mounting plate 1 are slidably installed through a movable rod 205.

[0033] It should be noted that the air nozzle 103 can be installed at the bottom of the mounting plate 1 through the mounting bracket 102, which is more convenient during use. During the movement of the second connecting rod 203, the movable sleeve 206 installed at the bottom of the rotating seat 204 can slide along the outside of the movable rod 205, which can be more stable during the movement.

[0034] Reference Figure 3 and Figure 4Furthermore, the two cutting blades 207 are rotatably installed through the installation shaft 208, the top of the air nozzle 103 is located inside the connecting sleeve 301, and a connecting plate 209 is fixedly installed on the outside of the cutting blade 207. A movable groove 210 is provided on the inner side of the connecting plate 209. A movable shaft 211 is movably installed on the second connecting rod 203, and the movable shaft 211 is slidably installed inside the movable groove 210.

[0035] It should be noted that: with the flipping action of the second connecting rod 203, the movable shaft 211 installed at the other end of the second connecting rod 203 can slide along the inside of the movable groove 210, so that the cutting blades 207 rotate around the installation shaft 208, which can make the cutting blades 207 approach each other, thereby achieving the effect of cutting the end of the weft yarn.

[0036] Reference Figure 5 Furthermore, a toggle opening 302 is provided on one side of the connecting sleeve 301, a roller 303 is rotatably installed on the inner side of the fixing frame 3, the fixing frame 3 and the connecting frame 304 are slidably installed through a sliding groove 305, and a toggle sleeve 307 is fixedly installed on the outside of the connecting frame 304.

[0037] It should be noted that the weft yarn can be clamped by the clamping plate 306 , and by pulling the toggle sleeve 307 , the connecting frame 304 slides along the inside of the sliding groove 305 , thereby transferring the weft yarn clamped on the clamping plate 306 to the inside of the connecting sleeve 301 .

[0038] The working principle of the weft drawing device of the air jet loom is as follows: the first connecting rod 201 can be driven to move toward the front end by the telescopic effect of the output end of the cylinder 2, and the first connecting rod 201 can be used to drive the second connecting rod 203 to rotate around the rotating seat 204. During the movement of the second connecting rod 203, the movable sleeve 206 installed at the bottom of the rotating seat 204 can slide along the outside of the movable rod 205, which can be more stable during the movement. At the same time, with the flipping effect of the second connecting rod 203, the movable shaft 211 installed at the other end of the second connecting rod 203 can slide along the inside of the movable groove 210. Sliding causes the cutting blades 207 to rotate around the mounting shaft 208, which can bring the cutting blades 207 closer to each other, thereby achieving the effect of cutting the end of the weft yarn. The weft yarn can be clamped by the clamping plate 306, and the connecting frame 304 can slide along the inside of the sliding groove 305 by pulling the toggle sleeve 307, so that the weft yarn clamped on the clamping plate 306 is transferred to the inside of the connecting sleeve 301. The toggle mouth 302 can assist in controlling the weft yarn so that one end of the weft yarn can be located inside the connecting sleeve 301, so that the air nozzle 103 is used to spray the weft yarn into the inside of the weft yarn collecting channel 101.

[0039] It should be noted that the specific model and specifications of the motor need to be selected and determined based on the actual specifications of the device, and the specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.

[0040] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A weft drawing device for an air jet loom, comprising a mounting plate (1), a cylinder (2) and a fixing frame (3), characterized in that: A weft collecting channel (101) is fixedly mounted on the top of the mounting plate (1), an air jet nozzle (103) corresponding to the weft collecting channel (101) is fixedly mounted on the bottom of the mounting plate (1), a cylinder (2) is fixedly mounted on the top of the mounting plate (1) on one side of the weft collecting channel (101), the output end of the cylinder (2) is movably connected to two first connecting rods (201), the outer ends of the two first connecting rods (201) are movably connected to second connecting rods (203), and the second connecting rods (2 03) One end away from the first connecting rod (201) is movably connected to a cutting blade (207) extending to the weft collecting channel (101), a fixing frame (3) is fixedly installed on the bottom of the mounting plate (1), a connecting sleeve (301) connected to the bottom of the weft collecting channel (101) is fixedly installed on one side of the fixing frame (3), a connecting frame (304) is slidably installed on the outer side of the fixing frame (3), and a clamping plate (306) is fixedly installed on the end of the connecting frame (304) close to each other through an elastic member.

2. A weft drawing device for an air jet loom according to claim 1, characterized in that: The air nozzle (103) is fixedly connected to the mounting plate (1) via a mounting frame (102), and the first connecting rod (201) is movably connected to the output end of the cylinder (2) via a rotating shaft (202).

3. The weft drawing device of an air jet loom according to claim 1, characterized in that: The first connecting rod (201) and the second connecting rod (203) are rotatably mounted via a rotating seat (204); a movable sleeve (206) is rotatably mounted on the bottom of the rotating seat (204); and the movable sleeve (206) and the mounting plate (1) are slidably mounted via a movable rod (205).

4. The weft drawing device of an air jet loom according to claim 1, characterized in that: The two cutting blades (207) are rotatably mounted via a mounting shaft (208), and the top of the air nozzle (103) is located inside the connecting sleeve (301).

5. The weft drawing device of an air jet loom according to claim 1, characterized in that: A connecting plate (209) is fixedly mounted on the outer side of the cutting blade (207), a movable groove (210) is provided on the inner side of the connecting plate (209), a movable shaft (211) is movably mounted on the second connecting rod (203), and the movable shaft (211) is slidably mounted inside the movable groove (210).

6. The weft drawing device of an air jet loom according to claim 1, characterized in that: A toggle opening (302) is provided on one side of the connecting sleeve (301), and a roller (303) is rotatably mounted on the inner side of the fixing frame (3).

7. The weft drawing device of an air jet loom according to claim 1, characterized in that: The fixing frame (3) and the connecting frame (304) are slidably mounted via a sliding groove (305), and a toggle sleeve (307) is fixedly mounted on the outside of the connecting frame (304).

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