Rapier head of weaving machine

Abstract

A rapier head of a weaving machine comprises a yarn hooking piece, a yarn clamping piece, an elastic piece and a cambered surface protruding block. The head of the yarn hooking piece is provided with a hooking head, a first installation groove and a penetrating groove are formed in the yarn hooking piece, the yarn clamping piece is installed in the penetrating groove in a swinging mode, cambered surface protruding blocks are connected to the two sides of the head of the yarn clamping piece respectively, the yarn clamping piece and the two cambered surface protruding blocks form flat cambered surfaces, and the flat cambered surfaces can abut against the hooking head. The width of the flat cambered surface is greater than that of the hook head; the elastic piece is installed in the first installation groove, one end of the elastic piece abuts against the yarn hooking piece, and the other end of the elastic piece abuts against the tail of the yarn clamping piece. The utility model provides the rapier head of the weaving machine according to the content, and solves the problems that the head part of the yarn clamping piece of the rapier head of the weaving machine in the prior art is narrower, and seamed edge structures are arranged on two sides of the head part of the yarn clamping piece, so that yarns are easy to rub with seamed edges to be broken in a yarn hooking process.

Description

Technical Field

[0001] The utility model relates to the technical field of textile production, and particularly relates to a rapier head of a loom. Background Art

[0002] With the rapid development of the modern textile industry, the rapier loom, as an efficient and precise weaving device, has been widely used in China. The rapier head of the loom, as the core component of the rapier loom, its performance directly affects the running speed, fabric quality and production efficiency of the loom.

[0003] However, for the rapier head in the prior art, the head of the yarn clamping member is relatively narrow, and there are edge structures on both sides of the head of the yarn clamping member, so that during the yarn hooking process, the yarn is easily broken due to friction with the edges. Content of the Utility Model

[0004] The purpose of the utility model is to provide a rapier head of a loom, which solves the problem that for the rapier head in the prior art, the head of the yarn clamping member is relatively narrow, and there are edge structures on both sides of the head of the yarn clamping member, so that during the yarn hooking process, the yarn is easily broken due to friction with the edges.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] A rapier head of a loom, comprising a yarn hooking member, a yarn clamping member, an elastic member and an arc-shaped convex block;

[0007] The head of the yarn hooking member is provided with a hooking head, and the inside of the yarn hooking member is provided with a first installation groove and a through groove. The yarn clamping member is swingably installed in the through groove. Arc-shaped convex blocks are respectively connected to both sides of the head of the yarn clamping member. The yarn clamping member and the two arc-shaped convex blocks form a flat arc surface, the flat arc surface can abut against the hooking head, and the width of the flat arc surface is greater than the width of the hooking head;

[0008] The elastic member is installed in the first installation groove. One end of the elastic member abuts against the yarn hooking member, and the other end of the elastic member abuts against the tail of the yarn clamping member.

[0009] Furthermore, the distance from the side surface of the arc-shaped convex block to the side surface of the yarn clamping member is the same as the thickness of the yarn clamping member.

[0010] Specifically, the outer sides at the front and rear ends of the arc-shaped convex block are concavely formed with a first connecting arc surface.

[0011] Preferably, a second connecting arc surface is provided between the bottom surface of the arc-shaped convex block and the yarn clamping member.

[0012] In some embodiments, it further comprises a bearing, a locking cover and a locking member;

[0013] The bearing is installed in the middle of the yarn clamping member. A second installation groove is provided on the left side of the yarn hooking member, and a first installation hole is provided on the right side of the yarn hooking member. A convex column is provided in the middle of the locking cover. The locking cover is installed in the second installation groove. The end of the convex column passes through the bearing and is installed in the first installation hole. The locking member is used to lock and fix the locking cover to the yarn hooking member.

[0014] Furthermore, a second installation hole is provided on the right side of the yarn hooking member. The two second installation holes are respectively located on the front and rear sides of the first installation hole. The second installation groove is provided with through holes, and the two through holes are aligned with the two second installation holes.

[0015] The yarn clamping member is provided with a limiting hole. The aperture of the limiting hole is larger than the aperture of the end of the locking member. One end of the locking member is installed on the locking cover. The other end of the locking member sequentially passes through the through hole and the limiting hole and is installed in the second installation hole.

[0016] Specifically, a limiting groove is provided at the tail of the yarn clamping member. One end of the elastic member is installed in the first installation groove. The other end of the elastic member abuts against the limiting groove, and the rear side of the other end of the elastic member abuts against the rear inner wall of the limiting groove.

[0017] Preferably, a first installation step and a second installation step are provided at the tail of the yarn hooking member. The first installation step is located on the front side of the second installation step. The second installation step is provided with a third installation hole.

[0018] Compared with the prior art, one of the above technical solutions has the following beneficial effects:

[0019] By respectively providing arc-shaped convex blocks on both sides of the head of the yarn clamping member to form a flat arc surface, and adopting a widened arc surface design where the width of the flat arc surface is greater than the width of the hook head, the friction between the yarn and the edges on both sides of the head of the yarn clamping member can be reduced, thereby avoiding the phenomenon of yarn breakage, which is beneficial to improving the working stability and reliability of the loom sword head. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of a loom sword head according to one embodiment of the present invention;

[0021] Figure 2 is a schematic structural diagram of an exploded view of a loom sword head according to one embodiment of the present invention;

[0022] Figure 3 is a schematic structural diagram of an arc-shaped convex block according to one embodiment of the present invention;

[0023] Figure 4Schematic diagram of the structure of the first installation groove in one embodiment of the present utility model;

[0024] Figure 5 Schematic diagram of the structure of the first installation hole and the second installation hole in one embodiment of the present utility model;

[0025] Wherein: yarn-hooking member 1, first installation groove 11, second installation groove 12, through hole 121, first installation hole 13, second installation hole 14, first installation step 15, second installation step 16, third installation hole 161, through groove 19, yarn-clamping member 2, limiting hole 21, limiting groove 22, elastic member 3, arc-shaped convex block 4, first connecting arc surface 41, second connecting arc surface 42, flat arc surface 5, hook head 6, bearing 7, locking cover 8, convex column 81, locking member 9. Specific embodiments

[0026] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation to the present utility model.

[0027] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", "inner side", "outer side", "inner end", "outer end", "axial direction", "radial direction", "circumferential direction", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features, which are used to distinguish and describe the features, without order or weight. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is more than two.

[0028] In one embodiment of the present utility model, as Figures 1-5As shown in the figure, a loom sword head includes a yarn hooking member 1, a yarn clamping member 2, an elastic member 3 and a cambered bump 4. A hooking head 6 is provided at the head of the yarn hooking member 1. A first installation groove 11 and a through groove 19 are provided inside the yarn hooking member 1. The yarn clamping member 2 is swingably installed in the through groove 19. The cambered bumps 4 are respectively connected to both sides of the head of the yarn clamping member 2. A flat cambered surface 5 is formed by the yarn clamping member 2 and the two cambered bumps 4. The flat cambered surface 5 can abut against the hooking head 6, and the width of the flat cambered surface 5 is greater than the width of the hooking head 6. The elastic member 3 is installed in the first installation groove 11. One end of the elastic member 3 abuts against the yarn hooking member 1, and the other end of the elastic member 3 abuts against the tail of the yarn clamping member 2. In this embodiment, the two cambered bumps 4 and the head of the yarn clamping member 2 are of an integrally formed structure. The top surfaces of the two cambered bumps 4 and the top surface of the head of the yarn clamping member 2 are integrally formed with the flat cambered surface 5. The outer side surfaces of the two cambered bumps 4 are respectively located outside the left and right side surfaces of the hooking head 6, so that the width of the flat cambered surface 5 is greater than the width of the hooking head 6. The number of the first installation grooves 11 and the elastic members 3 are both two. The elastic member 3 is a spring. During installation, first place the two elastic members 3 in the corresponding first installation grooves 11 respectively, and then insert the tail of the yarn clamping member 2 into the through groove 19 on the side facing the hooking head 6, so that the tail of the yarn clamping member 2 passes through the through groove 19 of the yarn hooking member 1 and is placed on the back side of the hooking head 6. Then adjust the position of the yarn clamping member 2 adaptively and install it well, so that the yarn clamping member 2 is swingably installed in the through groove 19, so that the flat cambered surface 5 of the head of the yarn clamping member 2 can abut against the inner side of the hooking head 6, and the tail of the yarn clamping member 2 can abut against the two elastic members 3. During operation, the hooking head 6 of the yarn hooking member 1 hooks the yarn. Under the action of force, the yarn fits against the flat cambered surface 5 and moves along the cambered surface direction. Specifically, the yarn clamping member 2 swings in the through groove 19 under the action of force, and the flat cambered surface 5 is separated from the inner side of the hooking head 6. The two elastic members 3 are in a compressed state. After the yarn enters the inner side of the hooking head 6 along the cambered surface direction of the flat cambered surface 5, under the elastic force of the elastic member 3, the yarn clamping member 2 swings back to its original position, so that the flat cambered surface 5 abuts against the hooking head 6 again to achieve a closed state and prevent the yarn from slipping off. In this application, by respectively arranging the cambered bumps 4 on both sides of the head of the yarn clamping member 2 to form the flat cambered surface 5, and adopting the widened cambered surface design with the width of the flat cambered surface 5 being greater than the width of the hooking head 6, the friction between the yarn and the edges on both sides of the head of the yarn clamping member 2 can be reduced, so that the yarn can smoothly enter the inner side of the hooking head 6, avoiding the phenomenon of yarn breakage, which is beneficial to improving the working stability and reliability of the loom sword head.

[0029] As Figures 1-3As shown, the distance from the side surface of the arc-shaped convex block 4 to the side surface of the yarn clamping member 2 is the same as the thickness of the yarn clamping member 2. In this embodiment, the arc-shaped convex blocks 4 are integrally formed on the left and right sides of the head of the yarn clamping member 2 respectively. The distance from the outer side surfaces of the two arc-shaped convex blocks 4 to the left and right side surfaces of the yarn clamping member 2 is the same as the thickness of the yarn clamping member 2, that is, the thickness of the two arc-shaped convex blocks 4 protruding in the left-right direction is equal to the thickness of the yarn clamping member 2. Through the above design, the integrality of the yarn clamping member 2 and the arc-shaped convex block 4 can be better, and the structure is more stable.

[0030] As Figure 3 shown, first connecting arc surfaces 41 are concavely formed on the outer sides of the front and rear ends of the arc-shaped convex block 4. In this embodiment, the first connecting arc surfaces 41 are concavely formed at the joints between the outer side surfaces of the front and rear ends of the arc-shaped convex block 4 and the yarn clamping member 2. The concavely formed arc surface design not only reduces the occupied space and the probability of rubbing against the yarn, but also avoids the phenomenon that the sharp corner structure cuts off the yarn.

[0031] As Figure 3 shown, a second connecting arc surface 42 is provided between the bottom surface of the arc-shaped convex block 4 and the yarn clamping member 2. In this embodiment, the second connecting arc surface 42 is provided at the joint between the bottom surface of the arc-shaped convex block 4 and the yarn clamping member 2. Through the second connecting arc surface 42, the connection between the arc-shaped convex block 4 and the yarn clamping member 2 is smoother, the integrality is better, the structure is more stable, and it is not easy to break.

[0032] As Figures 2-5 shown, it further includes a bearing 7, a locking cover 8 and a locking member 9; the bearing 7 is installed in the middle of the yarn clamping member 2, a second installation groove 12 is provided on the left side of the yarn hooking member 1, a first installation hole 13 is provided on the right side of the yarn hooking member 1, a convex column 81 is provided in the middle of the locking cover 8, the locking cover 8 is installed in the second installation groove 12, the end of the convex column 81 passes through the bearing 7 and is installed in the first installation hole 13, and the locking member 9 is used to lock and fix the locking cover 8 to the yarn hooking member 1. In this embodiment, the number of the locking members 9 is two, the second installation groove 12 is located on the left side of the through groove 19, the first installation hole 13 is located on the right side of the through groove 19. During installation, the bearing 7 is installed in the middle of the yarn clamping member 2, and then the yarn clamping member 2 is installed in the through groove 19. Specifically, the axis of the bearing 7 is aligned with the center of the first installation hole 13, that is, the two are coaxial. Then the locking cover 8 is installed in the second installation groove 12, so that the end of the convex column 81 passes through the bearing 7 and is placed in the first installation hole 13. Then the locking member 9 is used to lock and fix the locking cover 8 to the yarn clamping member 1. During operation, the yarn clamping member 2 swings by rotating along the convex column 81 through the bearing 7.

[0033] As Figures 2-5 shown, a second mounting hole 14 is provided on the right side of the yarn hooking member 1. The two second mounting holes 14 are respectively located on the front and rear sides of the first mounting hole 13. A through hole 121 is provided in the second mounting groove 12, and the two through holes 121 are aligned with the two second mounting holes 14; the yarn clamping member 2 is provided with a limiting hole 21, and the aperture of the limiting hole 21 is larger than the aperture of the end portion of the locking member 9. One end of the locking member 9 is mounted on the locking cover 8, and the other end of the locking member 9 sequentially passes through the through hole 121 and the limiting hole 21 and is mounted in the second mounting hole 14. In this embodiment, the locking member 9 is a locking screw. When locking the locking cover 8, specifically, after the yarn clamping member 2 and the locking cover 8 are correspondingly mounted, one end of the two locking members 9 is mounted on the locking cover 8. The two locking members 9 are respectively located on the front and rear sides of the convex column 81. The other ends of the two locking members 9 sequentially pass through the through hole 121 and the limiting hole 121 and are mounted in the second mounting hole 14. The diameter of the end portion of the locking member 9, the aperture of the second mounting hole 14, and the aperture of the through hole 121 are the same. The aperture of the limiting hole 21 is larger than the diameter of the end portion of the locking member 9. That is, when the yarn clamping member 2 swings, the limiting hole 21 of the yarn clamping member 2 swings accordingly until it abuts against the outer periphery of the end portion of the locking member 9. That is, the locking member 9 plays a limiting role to prevent the yarn clamping member 2 from swinging too much.

[0034] As Figures 2-3 shown, a limiting groove 22 is provided at the tail of the yarn clamping member 2. One end of the elastic member 3 is mounted in the first mounting groove 11, and the other end of the elastic member 3 abuts against the limiting groove 22, and the rear side of the other end of the elastic member 3 abuts against the rear inner wall of the limiting groove 22. In this embodiment, when installing the two elastic members 3, specifically, one end of the two elastic members 3 is mounted in the first mounting groove 11, and the other end of the two elastic members 3 abuts against the limiting groove 22, and the rear inner wall of the limiting groove 22 abuts against the rear side of the other end of the elastic member 3, playing a limiting and supporting role to prevent the elastic member 3 from bending.

[0035] As Figures 1-2 shown, a first mounting step 15 and a second mounting step 16 are provided at the tail of the yarn hooking member 1. The first mounting step 15 is located in front of the second mounting step 16, and the second mounting step 16 is provided with a third mounting hole 161. In this embodiment, through the first mounting step 15, the second mounting step 16 and the two third mounting holes 161 at the tail of the yarn hooking member 1, it is convenient to connect the yarn hooking member 1 to the rapier loom.

[0036] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0037] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and purposes of the present utility model, and the scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A loom sword head, characterized in that: It includes a yarn hooking member, a yarn clamping member, an elastic member and an arc-shaped convex block; The head of the yarn hooking member is provided with a hooking head, and the interior of the yarn hooking member is provided with a first installation groove and a through groove. The yarn clamping member is swingably installed in the through groove. Arc-shaped convex blocks are respectively connected to both sides of the head of the yarn clamping member. A flat arc surface is formed by the yarn clamping member and the two arc-shaped convex blocks. The flat arc surface can abut against the hooking head, and the width of the flat arc surface is greater than the width of the hooking head; The elastic member is installed in the first installation groove. One end of the elastic member abuts against the yarn hooking member, and the other end of the elastic member abuts against the tail of the yarn clamping member.

2. The rapier head of a loom according to claim 1, characterized in that: The distance from the side surface of the arc-shaped convex block to the side surface of the yarn clamping member is consistent with the thickness of the yarn clamping member.

3. A rapier of a loom according to claim 1, characterized in that: First connecting arc surfaces are concavely formed on the outer sides of the front and rear ends of the arc-shaped convex block.

4. A rapier head according to claim 1, characterized in that: A second connecting arc surface is provided between the bottom surface of the arc-shaped convex block and the yarn clamping member.

5. A rapier head according to claim 1, characterized in that: It further includes a bearing, a locking cover and a locking member; The bearing is installed in the middle of the yarn clamping member. A second installation groove is provided on the left side of the yarn hooking member. A first installation hole is provided on the right side of the yarn hooking member. A convex column is provided in the middle of the locking cover. The locking cover is installed in the second installation groove. The end of the convex column passes through the bearing and is installed in the first installation hole. The locking member is used to lock and fix the locking cover to the yarn hooking member.

6. The rapier head of a loom according to claim 5, characterized in that: Second installation holes are provided on the right side of the yarn hooking member. The two second installation holes are respectively located on the front and rear sides of the first installation hole. Through holes are provided in the second installation groove. The two through holes are aligned with the two second installation holes; The yarn clamping member is provided with a limiting hole. The aperture of the limiting hole is larger than the aperture of the end of the locking member. One end of the locking member is installed on the locking cover. The other end of the locking member sequentially passes through the through hole and the limiting hole and is installed in the second installation hole.

7. A rapier head according to claim 1, characterized in that: A limiting groove is provided at the tail of the yarn clamping member. One end of the elastic member is installed in the first installation groove. The other end of the elastic member abuts against the limiting groove, and the rear side of the other end of the elastic member abuts against the rear inner wall of the limiting groove.

8. A rapier head according to claim 1, characterized in that: A first installation step and a second installation step are provided at the tail of the yarn hooking member. The first installation step is located in front of the second installation step. A third installation hole is provided in the second installation step.

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