Edge width widening type middle edge folding device

Abstract

The utility model discloses an edge width widening type middle edge folding device which comprises a crochet hook assembly and a first driving assembly, the first driving assembly comprises a rotating piece and a swing rod, one face of the rotating piece is provided with a first groove, the swing rod is provided with a first guide piece embedded into the first groove, and the swing rod comprises a first end and a second end. The rotating piece rotates to drive the first groove to rotate so that the first guiding piece can move along the first groove, the first guiding piece moves to drive the second end to move up and down, the second end is connected with a rocker arm, the rocker arm is connected with a first telescopic rod, and the first telescopic rod is connected with a crochet hook assembly. The first driving assembly further comprises a first supporting frame, and the rotating piece rotates to drive the first supporting frame to move front and back and drive the crochet hook assembly to move front and back. When the side width is widened, the structure of the rotating part does not need to be changed along with the change of the side width, so that the whole structure is more compact, the number of universal parts is large, and the manufacturing cost rise caused by the increase of the side width is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of textile machinery, and particularly relates to a middle folding edge device with widened edge width. Background Art

[0002] When the loom is used to weave smooth edge fabrics with multiple widths, an intermediate folding edge device is required. The length of the yarn head folded into the edge depends on the distance between the waste edge scissors and the fabric edge. The yarn head is guided by the hook and completely contained in the edge of the fabric. In the original structure of the intermediate folding edge device, the distance between the waste edge scissors and the fabric edge is usually only 12-14, which is difficult to meet the requirements of smooth edge weaving with a specific width, such as a width of 20. It is usually necessary to increase the size of the box body, which involves the re-investment of the box casting mold, with many special parts, and a large appearance, and a non-compact structure. The relatively high cost of transformation is not conducive to serial production. Utility Model Content

[0003] The utility model aims to solve the above-mentioned technical problems and provide a middle folding edge device with a compact structure and widened edge width.

[0004] The purpose of the utility model is achieved as follows: a middle folding edge device with widened edge width, comprising a hook needle assembly and a first driving assembly driving the hook needle assembly to move, the first driving assembly comprising a rotating member and a swing rod, one side of the rotating member is provided with an annular first groove, the swing rod is provided with a first guide member embedded in the first groove, the swing rod comprises a first end fixed in position and a second end capable of moving, the rotating member rotates to drive the first groove to rotate so that the first guide member can move along the first groove, the first guide member moves and drives the second end to move up and down, the second end is connected with a swing arm, the swing arm is connected with a first telescopic rod, the first telescopic rod is connected to the hook needle assembly, the second end moves up and down to drive the swing arm to rotate, the swing arm rotation can drive the first telescopic rod to rotate to drive the hook needle assembly to rotate, the other side of the rotating member is provided with an annular second groove, the first driving assembly also comprises a first support frame for mounting the first telescopic rod, the first support frame is provided with a second guide member embedded in the second groove, the rotating member rotates to drive the second groove to rotate so that the second guide member can move along the second groove and then drive the first support frame to move forward and backward, the first support frame moves forward and backward to drive the first telescopic rod to move forward and backward and drive the hook needle assembly to move forward and backward.

[0005] Furthermore, in the utility model, the first driving assembly also includes a first support rod, the first end is rotatably connected to the first support rod, the second end is connected to the second support rod, and the second end moves up and down to drive the second support rod to move up and down.

[0006] Furthermore, in the utility model, the second end is connected to the swing arm through a connecting rod, the swing arm includes a rotating end and a fixed end, the first telescopic rod is connected to the rotating end, and the connecting rod is connected to the fixed end.

[0007] The utility model further comprises a waste edge scissors assembly and a second driving assembly driving the waste edge scissors assembly to move, wherein the waste edge scissors assembly comprises an upper scissors assembly and a lower scissors assembly, and the second driving assembly drives the upper scissors assembly and the lower scissors assembly to move respectively.

[0008] Furthermore, in the utility model, the second driving assembly includes two second telescopic rods respectively connected to the upper scissors assembly and the lower scissors assembly, the second driving assembly also includes a cam and a second support frame for mounting the second telescopic rod, the second support frame is provided with a third guide member cooperating with the cam, and the rotation of the cam drives the second support frame to move forward and backward and drives the second telescopic rod to move forward and backward.

[0009] Furthermore, in the utility model, the cam includes a first cam and a second cam that are coaxially arranged, and the third guide member includes a first guide wheel that contacts the first cam and a second guide wheel that contacts the second cam.

[0010] The beneficial effects of the utility model are as follows: the rotating part is a disc-shaped structure with a small volume, and the first groove and the second groove arranged on its two sides respectively drive the crochet hook assembly to rotate and extend. When the side width is widened, the structure of the rotating part does not need to change with the change of the side width, so that the overall structure is more compact, there are more common parts, and the increase in manufacturing costs caused by the increase in side width is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 is a schematic diagram of the structure of the folding edge device;

[0012] Figure 2 is a schematic diagram of the structure inside the folding edge device;

[0013] Figure 3 yes Figure 2 The enlarged view of point A in the middle;

[0014] Figure 4 is a structural schematic diagram of a first transmission assembly;

[0015] Figure 5 It is a schematic diagram of the structure of the rotating part;

[0016] Figure 6 is a structural schematic diagram of a second transmission assembly;

[0017] The accompanying drawings are marked as follows: 100, shell; 110, main shaft; 120, hook needle assembly; 130, waste edge scissors assembly; 131, upper scissors assembly; 132, lower scissors assembly; 200, rotating member; 201, first groove; 202, second groove; 210, swing rod; 211, first end; 212, second end; 220, first support rod; 230, second support rod; 240, connecting rod; 250, first support frame; 260, first telescopic rod; 270, swing arm; 271, rotating end; 272, fixed end; 300, cam; 301, first cam; 302, second cam; 310, second support frame; 311, first guide wheel; 312, second guide wheel; 320, second telescopic rod; 330, guide rod. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0019] See also Figures 1 to 6 A middle folding device with widened edge width includes a shell 100, in which a first driving component and a second driving component are arranged. The first driving component is connected to a hook component 120 and drives the hook component 120 to move, and the second driving component is connected to a waste edge scissors component 130 and drives the waste edge scissors component 130 to move.

[0020] Specifically, the first driving assembly includes a rotating member 200, a first annular groove 201 is provided on one side of the rotating member 200, and a second annular groove 202 is provided on the other side of the rotating member 200, and both the first groove 201 and the second groove 202 are grooves of the cam 300. A swing rod 210 is provided above the rotating member 200, and the swing rod 210 includes a first end 211 and a second end 212, and the first end 211 is connected to a first support rod 220, and the second end 212 is connected to a second support rod 230. The first support rod 220 is fixed to the housing 100, and the swing rod 210 is rotatably connected to the first support rod 220, and the second support rod 230 is not fixed to the housing 100 but can move. A first guide member embedded in the first groove 201 is provided on the swing rod 210, and the rotating member 200 is driven to rotate by the main shaft 110, and the rotation of the rotating member 200 can drive the first groove 201 to rotate, so that the first guide member moves along the first groove 201. The swing rod 210 forms a lever structure, the position of the first end 211 is fixed, the first guide member moves up and down under the drive of the rotating member 200, so that the second end 212 can move up and down, and the second end 212 drives the second support rod 230 to move up and down. The two ends of the second support rod 230 are respectively connected to the connecting rod 240, and the connecting rod 240 is connected to the swing arm 270. The swing arm 270 includes a rotating end 271 and a fixed end 272. The fixed end 272 is rotatably connected to the connecting rod 240, and the rotating end 271 is connected to the first telescopic rod 260. At the same time, the rotating end 271 is also rotatably connected to the fixed seat, so that the up and down movement of the second support rod 230 can drive the up and down movement of the fixed end 272 and drive the rotation of the rotating end 271, so that the first telescopic rod 260 reciprocates, and the first telescopic rod 260 is connected to the hook assembly 120, so that the hook assembly 120 rotates. At the same time, a first support frame 250 is also provided in the housing 100, and a first telescopic rod 260 is installed on the first support frame 250 and can rotate and move forward and backward with the first support frame 250. A second guide member embedded in the second groove 202 is provided on the first support frame 250, and the rotation of the rotating member 200 also causes the second groove 202 to rotate so that the second guide member drives the first support frame 250 to move forward and backward, thereby causing the first telescopic rod 260 to drive the hook assembly 120 to move forward and backward. The rotation of the rotating member 200 can cause the hook assembly 120 to rotate and move forward and backward to complete the action of the hook. The rotating member 200 is a disc-shaped structure with a small volume. The first groove 201 and the second groove 202 provided on both sides of the rotating member 200 respectively drive the hook assembly 120 to rotate and telescope, making the structure of the first driving assembly more integrated. When the side width is widened, the structure of the rotating member 200 does not need to change with the change of the side width, making the overall structure more compact, with more common parts, and reducing the manufacturing cost increase caused by the increase in side width.

[0021] The second driving assembly includes two cams 300, and the cams 300 include a first cam 301 and a second cam 302. The first cam 301 and the second cam 302 form a conjugate cam 300. The cam 300 is driven to rotate by connecting the main shaft 110 of the rotating member 200. Two second support frames 310 corresponding to the two cams 300 are arranged in the housing 100, and a third guide member is arranged on the second support frame. The third guide member includes a first guide wheel 311 in contact with the first cam 301 and a second guide wheel 312 in contact with the second cam 302. The rotation of the cam 300 can drive the second support frame 310 to move forward and backward. A guide rod 330 is arranged in the housing 100, and the guide rod 330 passes through the second support frame 310 so that the second support rod 230 can move forward and backward along the guide rod 330, thereby preventing the second support frame 310 from moving offset. A second telescopic rod 320 is fixed on the second support frame 310, and the second telescopic rod 320 is connected to the waste edge scissors assembly 130. The waste edge scissors assembly 130 includes an upper scissors assembly 131 and a lower scissors assembly 132. The second telescopic rods 320 on the two second support frames 310 are respectively connected to the upper scissors assembly 131 and the lower scissors assembly 132, thereby respectively driving the upper scissors assembly 131 and the lower scissors assembly 132 to move, thereby completing the movement of the waste edge scissors assembly 130.

[0022] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A middle folding edge device with widened edge width, It is characterized in that The invention comprises a hook needle assembly (120) and a first driving assembly for driving the hook needle assembly (120), wherein the first driving assembly comprises a rotating member (200) and a swing rod (210), wherein one side of the rotating member (200) is provided with a first annular groove (201), wherein the swing rod (210) is provided with a first guide member embedded in the first groove (201), wherein the swing rod (210) comprises a first end (211) fixed in position and a second end (212) capable of movement, wherein the rotating member (200) rotates to drive the first groove (201) to rotate so that the first guide member can move along the first groove (201), wherein the movement of the first guide member drives the second end (212) to move up and down, wherein the second end (212) is connected to a swing arm (270), wherein the swing arm (270) is connected to a first telescopic rod (260), wherein the first telescopic rod (260) is connected to the hook needle assembly (120). 0), the second end (212) moves up and down to drive the swing arm (270) to rotate, and the rotation of the swing arm (270) can drive the first telescopic rod (260) to rotate to drive the crochet needle assembly (120) to rotate, and the other side of the rotating member (200) is provided with an annular second groove (202), and the first driving assembly also includes a first support frame (250) for mounting the first telescopic rod (260), and the first support frame (250) is provided with a second guide member embedded in the second groove (202), and the rotation of the rotating member (200) drives the second groove (202) to rotate so that the second guide member can move along the second groove (202) and thereby drive the first support frame (250) to move forward and backward, and the first support frame (250) moves forward and backward to drive the first telescopic rod (260) to move forward and backward and drive the crochet needle assembly (120) to move forward and backward.

2. A middle folding edge device with widened edge width according to claim 1, It is characterized in that The first driving assembly also includes a first support rod (220), the first end (211) is rotatably connected to the first support rod (220), the second end (212) is connected to the second support rod (230), and the second end (212) moves up and down to drive the second support rod (230) to move up and down.

3. A middle folding edge device with widened edge width according to claim 1, It is characterized in that The second end (212) is connected to the swing arm (270) via a connecting rod (240); the swing arm (270) comprises a rotating end (271) and a fixed end (272); the first telescopic rod (260) is connected to the rotating end (271); and the connecting rod (240) is connected to the fixed end (272).

4. A middle folding edge device with widened edge width according to claim 1, It is characterized in that It also includes a waste edge scissors assembly (130) and a second driving assembly for driving the waste edge scissors assembly (130) to move. The waste edge scissors assembly (130) includes an upper scissors assembly (131) and a lower scissors assembly (132). The second driving assembly drives the upper scissors assembly (131) and the lower scissors assembly (132) to move.

5. A middle folding edge device with widened edge width according to claim 4, It is characterized in that The second driving assembly comprises two second telescopic rods (320) respectively connected to the upper scissor assembly (131) and the lower scissor assembly (132), the second driving assembly also comprises a cam (300) and a second support frame (310) for mounting the second telescopic rod (320), the second support frame (310) being provided with a third guide member cooperating with the cam (300), the cam (300) being rotated to drive the second support frame (310) to move forward and backward and drive the second telescopic rod (320) to move forward and backward.

6. A middle folding edge device with widened edge width according to claim 5, It is characterized in that The cam (300) comprises a first cam (301) and a second cam (302) which are coaxially arranged, and the third guide member comprises a first guide wheel (311) in contact with the first cam (301) and a second guide wheel (312) in contact with the second cam (302).

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