Yarn feeding mechanism of rapier loom

Abstract

The utility model discloses a yarn feeding mechanism of a rapier loom, which relates to the technical field of rapier looms and comprises a support body and a yarn feeding assembly, the support body is composed of an installation seat, a guide rail, a limiting rail groove and a toothed rail groove, and the yarn feeding assembly is used for achieving flexible yarn feeding operation. The yarn feeding assembly comprises a sliding seat, a worm and gear speed reducer, a gear, a connecting plate and a yarn feeding nozzle; the worm and gear speed reducer drives the gear to rotate so that the yarn feeding nozzle can move along the track of the guide rail. The guide rail with the toothed rail groove and the yarn feeding assembly with the worm and gear speed reducer and the gear are arranged, so that the position of the yarn feeding nozzle can be conveniently adjusted, flexible yarn feeding work is achieved, the adjusted position of the yarn feeding nozzle can be kept stable through the self-locking function of the worm and gear speed reducer, and the yarn feeding efficiency is improved. Meanwhile, a plurality of groups of yarn feeding assemblies can be arranged on the guide rails through the meshing matching structure of the gears and the toothed rail grooves, so that a small number of guide rails can be arranged, and the occupied space of the whole structure is small.

Description

Technical Field

[0001] This utility model relates to the field of rapier loom technology, specifically a yarn feeding mechanism for a rapier loom. Background Technology

[0002] The yarn feeding structure of a rapier loom mainly includes the following parts: yarn frame and yarn cones, weft feeder, yarn guide components, and yarn feeding drive mechanism. Chinese Publication No. CN 216193075 U discloses a yarn feeding mechanism for a rapier loom, including a slide rail, a slider, and a yarn feed nozzle, as well as a transmission belt, gears, and a servo motor. Mounting blocks are provided at both ends of the slide rail, and the two ends of the slide rail are sequentially connected to the mounting blocks by bolts. Slide grooves are provided on both sides of the slide rail, and sliders are slidably connected to the slide grooves. A yarn feed nozzle is mounted on one side of the slider by bolts. L-shaped support blocks are welded to the outer side of each mounting block, and gears are rotatably mounted on the bottom of the L-shaped support blocks via bearings. Through holes corresponding to the gears are distributed on the mounting blocks. The overall yarn feeding mechanism of the rapier loom is stable and efficient, assisting personnel in feeding multiple sets of yarn, effectively improving the air quality of the weaving environment, greatly reducing the damage of wool to the machine, and reducing the harm to workers' respiratory tracts, thus possessing high practicality.

[0003] In the above solution, the movement and adjustment of the yarn feeder are achieved through the operation of a transmission belt. However, only one yarn feeder can be installed on a single transmission belt, meaning only one yarn feeder corresponds to a single guide rail. Since rapier looms require a large number of yarn feeders, laying the same number of guide rails results in a large overall footprint for the mechanism. Therefore, to simplify this structure and reduce the number of guide rails, a yarn feeding mechanism for rapier looms is provided. Utility Model Content

[0004] The purpose of this utility model is to provide a yarn feeding mechanism for a rapier loom in order to solve the problems mentioned above.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a yarn feeding mechanism for a rapier loom, comprising a support body consisting of mounting bases and guide rails, wherein the guide rails are fixed in the middle of two mounting bases, the upper and lower ends of the guide rails are symmetrically formed with limiting grooves, the front end of the guide rails is formed with toothed grooves, and a yarn feeding assembly is installed on the guide rails through the limiting grooves and toothed grooves, wherein the yarn feeding assembly is used to realize flexible yarn feeding operation;

[0006] The yarn feeding assembly includes a slide block, a worm gear reducer, a gear, a connecting plate, and a yarn feeding nozzle. The slide block is sleeved on the outside of the guide rail and slidably connected to the limiting rail groove. The worm gear reducer is installed on the top of the slide block, and its output shaft passes through the inside of the slide block and is fixedly connected to the gear. The gear extends to the inside of the gear groove and meshes with it. The connecting plate is fixed to the bottom of the slide block, and the yarn feeding nozzle is fixed to the front end of the connecting plate by bolts and protrudes below the connecting plate. The worm gear reducer drives the gear to rotate, thereby realizing the movement of the yarn feeding nozzle along the guide rail trajectory.

[0007] As a further improvement of this utility model: multiple longitudinally distributed guide rails are fixed between the two mounting bases, and multiple sets of yarn feeding assemblies are provided on each of the guide rails.

[0008] As a further embodiment of this utility model: the yarn feeding assembly further includes a dust suction hood and a connecting pipe; the dust suction hood is fixed to the rear end of the yarn feeding nozzle and is located above the threading hole of the yarn feeding nozzle; the connecting pipe is fixed to the top of the dust suction hood and communicates with the inner cavity of the dust suction hood.

[0009] As a further improvement of this utility model, the distance between two adjacent guide rails is greater than the longitudinal length of the worm gear reducer and the dust cover protruding to the outside of the guide rail.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] By setting a guide rail with toothed grooves and a yarn feeding assembly with a worm gear reducer and gears, the position of the yarn feeding nozzle can be easily adjusted, enabling flexible yarn feeding. The self-locking function of the worm gear reducer can keep the adjusted position of the yarn feeding nozzle stable. At the same time, through the meshing structure of gears and toothed grooves, multiple sets of yarn feeding assemblies can be set on the guide rail, thus requiring fewer guide rails and resulting in a smaller overall footprint. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the structure of this utility model after removing one mounting base;

[0014] Figure 3 This is a schematic diagram showing the disassembled yarn feeding assembly and guide rail of this utility model;

[0015] Figure 4 This is a bottom view of the structure of the yarn feeding assembly of this utility model.

[0016] In the diagram: 1. Support body; 101. Mounting base; 102. Guide rail; 103. Limiting rail groove; 104. Gear groove; 2. Yarn feeding assembly; 201. Slide; 202. Worm gear reducer; 203. Gear; 204. Connecting plate; 205. Yarn feeding nozzle; 206. Dust collection hood; 207. Connecting pipe. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figures 1-4 In this embodiment of the utility model, a yarn feeding mechanism for a rapier loom includes a support body 1 consisting of a mounting base 101 and a guide rail 102. The guide rail 102 is fixed in the middle of two mounting bases 101. The upper and lower ends of the guide rail 102 are symmetrically formed with limiting grooves 103. The front end of the guide rail 102 is formed with a toothed groove 104. A yarn feeding assembly 2 is installed on the guide rail 102 through the limiting grooves 103 and the toothed grooves 104. The yarn feeding assembly 2 is used to realize flexible yarn feeding operation.

[0019] The yarn feeding assembly 2 includes a slide 201, a worm gear reducer 202, a gear 203, a connecting plate 204, and a yarn feeding nozzle 205;

[0020] The slide 201 is sleeved on the outside of the guide rail 102 and is slidably connected to the limiting rail groove 103. The worm gear reducer 202 is installed on the top of the slide 201, and the output shaft of the worm gear reducer 202 passes through to the inside of the slide 201 and is fixedly connected to the gear 203. The gear 203 extends to the inside of the gear groove 104 and meshes with the gear groove 104.

[0021] The connecting plate 204 is fixed to the bottom of the slide block 201, and the yarn feeding nozzle 205 is fixed to the front end of the connecting plate 204 by bolts and protrudes to the bottom of the connecting plate 204;

[0022] The worm gear reducer 202 drives the gear 203 to rotate, thereby enabling the yarn feeding nozzle 205 to move along the track of the guide rail 102.

[0023] Multiple longitudinally distributed guide rails 102 are fixed between the two mounting bases 101, and multiple sets of yarn feeding assemblies 2 are provided on each guide rail 102.

[0024] In this embodiment, it should be noted that the mounting base 101 is installed and fixed to the frame of the rapier loom by bolts.

[0025] In use, the yarn to be used is passed through the threading hole on the yarn feeder 205 until it enters the loom. When the yarn is fed by running, the drive motor of the worm gear reducer 202 is started, which drives the corresponding gear 203 to rotate. At this time, under the limiting action of the tooth block inside the toothed groove 104, the rotating gear 203 will move horizontally, thereby realizing the overall horizontal movement of the yarn feeding assembly 2, thus realizing the horizontal displacement of the yarn feeder 205 along the guide rail 102, that is, realizing the position adjustment of the yarn feeder 205 and realizing flexible yarn feeding.

[0026] It should be further explained that the self-locking function of the worm gear reducer 202 can keep the position of the adjusted yarn feeder 205 stable. Through the meshing structure of the gear 203 and the toothed groove 104, multiple sets of yarn feeders 2 can be set on the guide rail 102. In this way, only a small number of guide rails 102 need to be set, and the overall structure occupies less space.

[0027] Please refer to this carefully. Figures 1-4 The yarn feeding assembly 2 also includes a dust suction hood 206 and a connecting pipe 207;

[0028] The dust cover 206 is fixed to the rear end of the yarn feeding nozzle 205, and the dust cover 206 is located above the thread hole of the yarn feeding nozzle 205.

[0029] The connecting tube 207 is fixed to the top of the dust hood 206 and communicates with the inner cavity of the dust hood 206.

[0030] In this embodiment, it should be noted that the connecting pipe 207 is connected to an external dust removal device via a flexible hose. By activating the external dust removal device, a suction operation can be performed at the dust hood 206, thereby collecting the floating wool around the yarn feeding nozzle 205 and achieving a dust removal effect.

[0031] Please refer to this carefully. Figures 1-2 The distance between two adjacent guide rails 102 is greater than the longitudinal length of the worm gear reducer 202 and the dust cover 206 protruding to the outside of the guide rail 102.

[0032] In this embodiment, the structure allows the yarn feeding assemblies 2 of the two guide rails 102 to operate without interfering with each other.

[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A yarn feeding mechanism of a rapier loom comprising a support body (1) consisting of mounting seats (101), a guide rail (102) fixed in the middle of two mounting seats (101), characterized in that, The upper and lower ends of the guide rail (102) are symmetrically formed with limiting grooves (103), and the front end of the guide rail (102) is formed with a toothed groove (104). The guide rail (102) is equipped with a yarn feeding assembly (2) through the limiting groove (103) and the toothed groove (104). The yarn feeding assembly (2) includes a slide (201), a worm gear reducer (202), a gear (203), a connecting plate (204), and a yarn feeding nozzle (205). The slide (201) is sleeved on the outside of the guide rail (102) and is slidably connected to the limiting rail groove (103). The worm gear reducer (202) is installed on the top of the slide (201), and the output shaft of the worm gear reducer (202) passes through to the inside of the slide (201) and is fixedly connected to the gear (203). The gear (203) extends to the inside of the gear groove (104) and meshes with the gear groove (104). The connecting plate (204) is fixed to the bottom of the slide (201), and the yarn feeding nozzle (205) is fixed to the front end of the connecting plate (204) by bolts and protrudes to the bottom of the connecting plate (204).

2. A gripper motion according to claim 1, characterized in that Multiple longitudinally distributed guide rails (102) are fixed between the two mounting bases (101), and multiple sets of yarn feeding assemblies (2) are provided on a single guide rail (102).

3. A gripper motion according to claim 2, characterized in that The yarn feeding assembly (2) also includes a dust suction hood (206) and a connecting pipe (207); the dust suction hood (206) is fixed to the rear end of the yarn feeding nozzle (205) and the dust suction hood (206) is located above the thread hole of the yarn feeding nozzle (205); the connecting pipe (207) is fixed to the top of the dust suction hood (206) and communicates with the inner cavity of the dust suction hood (206).

4. A gripper motion according to claim 1, characterized in that The distance between two adjacent guide rails (102) is greater than the longitudinal length of the worm gear reducer (202) and the dust cover (206) protruding to the outside of the guide rail (102).

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