Rapier head for weft insertion of rapier loom

Abstract

The utility model belongs to the technical field of rapier heads, and particularly relates to a rapier head for weft insertion of a rapier loom, which comprises a rapier head shell, a side plate is arranged at one end of the rapier head shell, a protective plate is arranged at one end, far away from the side plate, of the rapier head shell, a plurality of grooves are formed in the side plate and the protective plate, and the grooves are communicated with the rapier head shell. Each group of grooves is internally provided with a rolling mechanism which is in linear contact with the rapier loom, each rolling mechanism comprises a rolling assembly which is used for being in contact with the rapier loom, the rolling assemblies are arranged in the grooves, the rolling assemblies are detachably connected into the grooves through connecting assemblies, and each connecting assembly comprises a sliding block, a sliding block, a sliding block and a sliding block; due to the fact that the rolling assembly is arranged, linear contact with the rapier loom can be achieved, and due to the fact that the stress area is increased and the stress is reduced, the friction loss of the rolling shaft can be reduced, and the service life of the rolling shaft is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of rapier heads, in particular to a rapier head for weft insertion in a rapier loom. Background Art

[0002] The rapier loom is a new type of loom that matured earlier, has a simple structure and is widely adaptable in the weaving production of the textile industry, and the rapier head is one of the key components of the rapier loom. During operation, the rapier head will shuttle on the rapier loom at high speed, which is prone to wear. To address this problem, some existing rapier looms have made improvements to the rapier head. For example, Chinese patent CN214992157U discloses a rapier head for weft insertion of a rapier loom. This rapier head converts the sliding friction of the original rapier head into rolling friction by arranging ball seats and balls on the sides of the protective block and the side strips. This not only reduces the friction of the rapier head, but also effectively avoids direct contact between the sides of the protective block and the side strips and the rapier loom, thereby reducing the loss of the protective block and the side strips. However, when this rapier head is in use, the ball wears out at a faster rate because the ball is in point contact with the rapier loom during movement, the contact area between the two is small, the ball is subjected to greater force, and the friction loss of the ball is greater. Therefore, a rapier head for weft insertion of a rapier loom was invented. Utility Model Content

[0003] In view of the above problems and / or the problems existing in the existing rapier head for weft insertion of a rapier loom, the present utility model is proposed.

[0004] Therefore, the purpose of the present invention is to provide a rapier head for weft insertion in a rapier loom, which can solve the above-mentioned existing problems.

[0005] In order to solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solutions:

[0006] A rapier head for weft insertion in a rapier loom comprises a rapier head housing, one end of the rapier head housing is provided with a side plate, an end of the rapier head housing away from the side plate is provided with a protective plate, a plurality of grooves are provided on the side plate and the protective plate, and each group of grooves is provided with a rolling mechanism for making line contact with the rapier loom.

[0007] As a preferred solution of the rapier head for weft insertion of a rapier loom described in the utility model, the rolling mechanism includes:

[0008] a rolling assembly for contacting the rapier loom, wherein the rolling assembly is disposed in the groove;

[0009] A connecting component is provided, wherein the rolling component is detachably connected to the groove via the connecting component.

[0010] As a preferred solution of the rapier head for weft insertion of a rapier loom described in the utility model, wherein: the connecting assembly includes:

[0011] Slider, both ends of the groove are slidably connected to the slider;

[0012] A rotating shaft is provided, wherein each group of sliders is rotatably connected to the rotating shaft via a bearing.

[0013] As a preferred solution of the rapier head for weft insertion of a rapier loom described in the utility model, wherein: the connecting assembly further includes:

[0014] Positioning rods, with positioning rods fixedly mounted on opposite ends of the two sets of rotating shafts, and a rolling assembly provided between the two sets of positioning rods;

[0015] A guide assembly for guiding the position of the slider.

[0016] As a preferred solution of the rapier head for weft insertion of a rapier loom described in the utility model, the guide assembly includes:

[0017] Through holes are provided at both ends of the slider;

[0018] Guide rods, two sets of guide rods are fixedly installed on the opposite end side walls of the groove, and the guide rods are slidably connected in the through holes.

[0019] As a preferred solution of the rapier head for weft insertion of a rapier loom described in the utility model, wherein: the guide assembly further includes:

[0020] A spring is sleeved on the guide rod, one end of the spring is fixedly mounted on the slider, and the end of the spring away from the slider is fixedly mounted on the side wall of the groove.

[0021] As a preferred solution of the rapier head for weft insertion of a rapier loom described in the utility model, the rolling assembly includes:

[0022] A roller, wherein the roller is located in the inner cavity of the groove, and one side of the roller extends to the outside of the groove;

[0023] A rotating rod is fixedly installed at both ends of the roller.

[0024] As a preferred solution of the rapier head for weft insertion of a rapier loom described in the utility model, wherein: the rolling assembly further includes:

[0025] Positioning grooves, the opposite ends of the two sets of rotating rods are provided with positioning grooves, and a positioning rod is provided on one side of the positioning groove, and the positioning rod is inserted into the positioning groove with an interference fit;

[0026] Wear-resistant layer: the outer surface of the roller is provided with a wear-resistant layer.

[0027] Compared with existing technologies:

[0028] 1. By setting up a rolling assembly, it is possible to achieve line contact with the rapier loom. Since the force-bearing area is increased, the stress is reduced, which in turn reduces the friction loss of the roller and extends the service life of the roller;

[0029] 2. The rolling assembly is detachably connected to the groove by setting a connecting assembly. When disassembling and assembling the rolling assembly, it is only necessary to adjust the distance between the two sets of sliders without the need for external tools. The operation is simple and convenient for disassembling and assembling the rolling assembly.

[0030] 3. By providing a wear-resistant layer on the outer surface of the roller, the wear resistance of the roller can be improved, thereby further extending the service life of the roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the local structure of the utility model;

[0032] Figure 2 This is a front view schematic diagram of the rolling mechanism of the utility model;

[0033] Figure 3 This is a schematic top view of the local structure of the rolling mechanism of the utility model;

[0034] Figure 4 This is a top view of the slider of the utility model.

[0035] In the figure: the rapier head housing 10, the side plate 20, the protective plate 30, the groove 40, the slider 31, the through hole 32, the guide rod 33, the spring 34, the rotating shaft 35, the roller 36, the rotating rod 37, the wear-resistant layer 371, the positioning groove 38, and the positioning rod 39. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0037] The utility model provides a rapier head for weft insertion in a rapier loom. Figures 1-4 , including a rapier head housing 10, one end of the rapier head housing 10 is provided with a side plate 20, and the end of the rapier head housing 10 away from the side plate 20 is provided with a protective plate 30, and a plurality of grooves 40 are provided on the side plate 20 and the protective plate 30, and each group of grooves 40 is provided with a rolling mechanism for line contact with the rapier loom.

[0038] The rolling mechanism includes: a rolling assembly for contacting the rapier loom, and a connecting assembly;

[0039] The rolling assembly is disposed in the groove 40 , and the rolling assembly is detachably connected to the groove 40 via a connecting assembly.

[0040] The connecting assembly includes: a slider 31, a rotating shaft 35, a positioning rod 39, and a guide assembly for guiding the position of the slider 31;

[0041] Both ends of the groove 40 are slidably connected to the slider 31, and both sides of the slider 31 are in contact with the inner surface of the groove 40. Each group of sliders 31 is rotatably connected to the rotating shaft 35 through a bearing. The outer ring of the bearing is fixed in the slider 31, and the inner ring of the bearing fixes the rotating shaft 35. The opposite ends of the two groups of rotating shafts 35 are fixedly installed with positioning rods 39. The shape of the positioning rods 39 is set to be square, and a rolling assembly is provided between the two groups of positioning rods 39.

[0042] The guide assembly includes: a through hole 32, a guide rod 33, and a spring 34;

[0043] Through holes 32 are provided at both ends of the slider 31, and two sets of guide rods 33 are fixedly installed on the opposite end side walls of the groove 40, and the guide rods 33 are slidably connected in the through holes 32. The diameter of the guide rods 33 is the same as the diameter of the through holes 32 to prevent the guide rods 33 from shaking. The spring 34 is sleeved on the guide rods 33, and one end of the spring 34 is fixedly installed on the slider 31, and the end of the spring 34 away from the slider 31 is fixedly installed on the side wall of the groove 40. The spring 34 has the function of deforming. When the spring 34 is deformed, it has the function of squeezing the roller 36.

[0044] The rolling assembly includes: a roller 36, a rotating rod 37, a positioning groove 38, and a wear-resistant layer 371;

[0045] The roller 36 is located in the inner cavity of the groove 40, and one side of the roller 36 extends to the outside of the groove 40. The roller 36 extending to the outside of the groove 40 has the ability to contact the rapier loom. Rotating rods 37 are fixedly installed at both ends of the roller 36. The rotating rods 37 are in contact with the rotating shaft 35. Positioning grooves 38 are provided at the opposite ends of the two sets of rotating rods 37. The shape and size of the positioning grooves 38 match the shape and size of the positioning rods 39, and a positioning rod 39 is provided on one side of the positioning groove 38. The positioning rod 39 is inserted into the positioning groove 38 with an interference fit. The outer surface of the roller 36 is provided with a wear-resistant layer 371. By setting the wear-resistant layer 371, the service life of the roller 36 can be extended. The wear-resistant layer 371 is formed by coating the outer surface of the roller 36 with a wear-resistant coating. The wear-resistant coating is a new type of functional coating with special functions and has good wear resistance. The wear-resistant coating is preferably a polyurea coating.

[0046] Working principle: When the rapier head is used, the structure on the side plate 20 and the protective plate 30 on the side of the rapier head that is in direct contact with the rapier loom is the roller 36. The contact area between the roller 36 and the rapier loom is much larger than the contact area between the ball and the rapier loom, and the stress is smaller, which reduces the friction loss of the roller 36 and extends the service life of the roller 36. After the rapier head has been used for a period of time, part of the roller 36 may be severely worn. At this time, the two sets of sliders 31 are moved back to back in the groove 40 until the positioning groove 3 8 is separated from the positioning rod 39. At this time, the corresponding roller 36 can be taken out. Then, the two sets of sliders 31 are moved back to back. At this time, the spring 34 will be deformed. After the two sets of positioning rods 39 are at a suitable distance, the new roller 36 is placed between the two sets of positioning rods 39, and the positioning groove 38 and the positioning rod 39 are aligned. At this time, the external force is removed, so that the positioning rod 39 is inserted into the positioning groove 38 under the action of the spring 34, so as to fix the roller 36 in the groove 40, and complete the replacement of the roller 36.

[0047] While the present invention has been described above with reference to specific embodiments, various modifications may be made and equivalent components may be substituted without departing from the scope of the present invention. In particular, as long as no structural conflicts exist, the various features of the embodiments disclosed herein may be combined with one another in any manner, and the omission of an exhaustive description of these combinations in this specification is solely for the sake of space and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions within the scope of the claims.

Claims

1. A rapier head for weft insertion of a rapier loom, comprising a rapier head housing (10), one end of the rapier head housing (10) being provided with a side plate (20), and one end of the rapier head housing (10) being away from the side plate (20) being provided with a protective plate (30), characterized in that: A plurality of grooves (40) are provided on the side plate (20) and the protective plate (30), and a rolling mechanism for making line contact with the rapier loom is provided in each group of grooves (40); The rolling mechanism comprises: A rolling assembly for contacting the rapier loom, wherein the rolling assembly is arranged in the groove (40); A connecting assembly, wherein the rolling assembly is detachably connected to the groove (40); The connection component includes: A slider (31), both ends of the groove (40) are slidably connected to the slider (31); A rotating shaft (35), wherein each set of sliders (31) is rotatably connected to the rotating shaft (35) via a bearing; Positioning rods (39), the two sets of positioning rods (39) are fixedly mounted on opposite ends of the rotating shafts (35), and a rolling assembly is provided between the two sets of positioning rods (39); A guide assembly for guiding the position of the slider (31); The guide assembly comprises: Through holes (32), both ends of the slider (31) are provided with through holes (32); Guide rods (33), two sets of guide rods (33) are fixedly mounted on opposite end side walls of the groove (40), and the guide rods (33) are slidably connected in the through holes (32); A spring (34), wherein the spring (34) is sleeved on the guide rod (33), one end of the spring (34) is fixedly mounted on the slider (31), and one end of the spring (34) away from the slider (31) is fixedly mounted on the side wall of the groove (40); The rolling assembly comprises: A roller (36), wherein the roller (36) is located in the inner cavity of the groove (40), and one side of the roller (36) extends to the outside of the groove (40); A rotating rod (37), with both ends of the roller (36) being fixedly mounted with the rotating rod (37); Positioning grooves (38), the two groups of rotating rods (37) are provided with positioning grooves (38) at opposite ends thereof, and a positioning rod (39) is provided on one side of the positioning groove (38), and the positioning rod (39) is inserted into the positioning groove (38) with an interference fit; A wear-resistant layer (371), wherein the outer surface of the roller (36) is provided with a wear-resistant layer (371).

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