Shoulder harness donning device

Abstract

The utility model discloses a kind of shoulder strap buckling devices, including clamping buckle mechanism, traction mechanism and plugboard, clamping buckle mechanism is used to clamping adjustment buckle and drive adjustment buckle around the axis of horizontal pole self-rotation;Traction mechanism includes the traction clamp jaw that can move along front-back direction, traction clamp jaw is used to clamping and by rear to front pull the free end of shoulder strap, to make free end resist on adjustment buckle;Plugboard is vertically arranged and can be lifted, the lower end tip of plugboard is opposite adjustment buckle and is in the first through-hole in front, one end of shoulder strap is in the upper side of rear side wall, the lower end tip of plugboard is lowered to pass through the first through-hole by upper to lower with the tip of free end, adjustment buckle around the axis of horizontal pole self-rotation 180 °, the lower end tip of plugboard is lowered again to pass through the second through-hole by upper to lower with the tip of free end.The shoulder strap buckling device replaces manual buckling, reduces the workload of artificial, reduces labor cost, improves the efficiency of buckling.

Description

Technical Field

[0001] This utility model relates to the field of garment processing equipment technology, and in particular to a shoulder strap buckle device. Background Technology

[0002] Bra straps or back straps are usually adjustable. In the strap manufacturing process, one end of the strap is first connected to the horizontal bar of the adjustment buckle (H-shaped or figure-eight buckle). When fastening the strap, the other end or free end of the strap needs to be passed through the first hole of the adjustment buckle and then through the second hole in the opposite direction. The free end of the strap is wrapped around the horizontal bar. Currently, this is usually done manually. However, the straps are usually made of soft and elastic materials, which are not easy to hold and pass through the holes. This process is time-consuming, inefficient, and labor-intensive. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a shoulder strap fastening device that can quickly pass the free end of the shoulder strap through the first through hole of the adjusting buckle and then through the second through hole of the adjusting buckle in the opposite direction.

[0004] According to an embodiment of the present invention, a shoulder strap fastening device includes an adjusting buckle comprising a front sidewall, a crossbar, and a rear sidewall arranged sequentially. A first through hole is formed between the front sidewall and the crossbar, and a second through hole is formed between the crossbar and the rear sidewall. The shoulder strap fastening device includes a clamping mechanism, a traction mechanism, and an insert plate. The clamping mechanism is used to clamp the front sidewall and the rear sidewall so that the crossbar is parallel to the left-right direction. The clamping mechanism is also used to drive the adjusting buckle to rotate around the central axis of the crossbar so that the first through hole and the second through hole interchange positions in the front-back direction, and the axial directions of the first through hole and the second through hole are both parallel to the up-down direction. The traction mechanism includes a traction mechanism capable of moving in the front-back direction. The gripper, the traction gripper, is used to grip the free end of the shoulder strap and pull the free end from back to front so that the free end is above the clamping mechanism; the insert plate is vertically arranged and can be raised and lowered, the lower end of the insert plate is directly opposite the first through hole of the adjusting buckle on the clamping mechanism, one end of the shoulder strap is above the rear side wall, the lower end of the insert plate lowers and rises to pass the free end through the first through hole from top to bottom, the clamping mechanism drives the front side wall to rotate upward and rotate 180° around the central axis of the crossbar, the lower end of the insert plate lowers and rises again to pass the free end through the second through hole from top to bottom.

[0005] It has at least the following beneficial effects: Initially, one end of the shoulder strap is connected to the crossbar of the adjusting buckle, which is placed on the clamping mechanism. The axes of the first and second through holes are parallel to the vertical direction. The front and rear sidewalls are distributed front and back, with the first through hole in front of the second through hole. The crossbar is parallel to the horizontal direction, and one end of the shoulder strap is above the rear sidewall. The free end of the shoulder strap is swung from bottom to top and close to the traction claw. The traction claw clamps the end of the free end and pulls it from back to front, so that the free end passes above the clamping mechanism from back to front. The free end abuts against the adjusting buckle on the clamping mechanism and covers the first and second through holes. Then, the traction claw releases the free end. The lower end of the insert plate moves from top to bottom, pressing down on the free end. The free end passes through the first through hole and moves below it. Then, the insert plate returns to its position above the clamping mechanism. The clamping mechanism drives the front sidewall to rotate upwards and rotate 180° around the central axis of the crossbar, causing the front and rear sidewalls to interchange positions. The front sidewall moves to the rear of the crossbar, and the rear and front sidewalls are distributed front and back. At this time, the free end rests on the rear sidewall. Then, the lower end of the insert plate moves from top to bottom again to pass through the second through hole from top to bottom. The free end passes through the second through hole and moves below it. Then, the insert plate returns to its position above the clamping mechanism, completing the shoulder strap buckling. The shoulder strap is flexible. The lower end of the insert plate presses down on the free end, allowing it to pass through the first / second through hole. Once a portion of the free end has passed through the first / second through hole, the lower end of the insert plate continues to move downwards, and the free end continues to move downwards until it reaches below the adjusting buckle. This shoulder strap fastening device replaces manual fastening, quickly passing the free end of the shoulder strap through the first through hole of the adjusting buckle and then back through the second through hole, reducing manual labor, lowering labor costs, and improving fastening efficiency.

[0006] According to some embodiments of this utility model, the clamping mechanism includes a support frame, a rotating shaft, and a rotary drive mechanism. The rotating shaft is rotatably mounted on the support frame, parallel to the left-right direction. Two clamping plates are provided on the end face of the rotating shaft. Limiting grooves are provided on two opposing sides of the two clamping plates. The two limiting grooves are symmetrically distributed with the central axis of the rotating shaft as the center. The two limiting grooves allow the front sidewall and the rear sidewall to extend from left to right, respectively. The rotary drive mechanism is connected to the support frame, and the output end of the rotary drive mechanism is connected to the rotating shaft to drive the adjusting buckle on the two clamping plates to rotate around the central axis of the crossbar.

[0007] According to some embodiments of the present invention, the clamping mechanism further includes a left and right drive mechanism and a push rod. An avoidance hole is provided at the central axis position of the rotating shaft. The push rod passes through the avoidance hole and extends to the position between the two clamping plates. The output end of the left and right drive mechanism is connected to the push rod. The left and right drive mechanism is used to drive the push rod to move in the left and right direction so that the push rod pushes down the adjusting buckle on the two clamping plates.

[0008] According to some embodiments of the present invention, a guide mechanism is also provided on the left side of the clamping mechanism. The guide mechanism is provided with a guide hole, the axis of which is parallel to the left-right direction. The guide hole is directly opposite the clamping mechanism and is used for the adjustment buckle and one end of the shoulder strap to extend into it so as to feed the adjustment buckle onto the clamping mechanism.

[0009] According to some embodiments of the present invention, the guiding mechanism includes a guide plate and two guide blocks. Both guide blocks are connected to the lower surface of the guide plate, and the two guide blocks protrude to the left from the left end face of the guide plate. An upper hole is formed between the guide plate and the two guide blocks for the adjusting buckle to pass through from left to right, and a lower hole is formed between the two guide blocks for one end of the shoulder strap to pass through from left to right. The lower hole gradually decreases in size from left to right, and the upper hole and the lower hole form the guiding hole.

[0010] According to some embodiments of the present invention, a stop bar is also included. The stop bar is located behind the clamping mechanism and is used to allow the free end to wrap around the buckle from bottom to top and from back to front, so as to prevent the shoulder strap from passing entirely through the first through hole.

[0011] According to some embodiments of the present invention, an upper positioning clamping mechanism is also included. The upper positioning clamping mechanism is disposed behind the clamping mechanism. The upper positioning clamping mechanism is used to clamp and position the middle part of the free end. The lower end of the insert plate presses down on the area of ​​the shoulder strap corresponding to the first through hole / second through hole, so that the shoulder strap passes through the first through hole / second through hole sequentially from the area corresponding to the first through hole / second through hole to the end of the free end.

[0012] According to some embodiments of the present invention, the upper positioning clamping mechanism includes a positioning plate and a first upper pressure foot. The positioning plate is located behind the clamping mechanism, and the first upper pressure foot can swing or rise and fall in the front-back direction to press the free end down onto the upper positioning plate.

[0013] According to some embodiments of the present invention, the traction mechanism further includes a first front-rear drive mechanism, the output end of which is connected to the traction gripper, and the first front-rear drive mechanism is used to drive the traction gripper to move in the front-rear direction.

[0014] According to some embodiments of the present invention, the traction gripper includes a second front and rear drive mechanism, a connecting plate, a support plate, and a second upper pressure foot hinged to the support plate. The output end of the first front and rear drive mechanism is connected to the second front and rear drive mechanism and the support plate. The output end of the second front and rear drive mechanism is hinged to one end of the connecting plate, and the other end of the connecting plate is hinged to the second upper pressure foot. The second front and rear drive mechanism is used to drive the second upper pressure foot to press the end of the free end down onto the support plate.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model; Figure 2 This is a structural diagram of the present invention after concealing the traction mechanism and the guiding mechanism; Figure 3 This is a schematic diagram of the structure of the traction mechanism and the guiding mechanism in an embodiment of this utility model; Figure 4 This is a schematic diagram showing the free end of the shoulder strap about to pass through the first through hole; Figure 5 This is a schematic diagram showing the free end of the shoulder strap passing through the first through hole. Figure 6 This is a schematic diagram showing the free end of the shoulder strap about to pass through the second through hole; Figure 7 This is a schematic diagram showing the free end of the shoulder strap passing through the second through hole. Figure 8 This is a schematic diagram showing the initial state of the shoulder strap and adjustment buckle; Figure 9 This is a schematic diagram of the clamping mechanism according to an embodiment of the present utility model; Icon labels: Adjusting buckle 1, front side wall 11, cross bar 12, rear side wall 13, first through hole 14, second through hole 15; Shoulder strap 2; Clamping mechanism 3, support frame 31, rotating shaft 32, clamping plate 321, limiting groove 3211, rotary drive mechanism 33, left and right drive mechanism 34, push rod 35; Traction mechanism 4, traction gripper 41, second front and rear drive mechanism 411, connecting plate 412, support plate 413, second upper pressure foot 414, first front and rear drive mechanism 42; Insert plate 5, lifting drive mechanism 51; Guide mechanism 6, guide hole 61, guide plate 62, guide block 63, third front and rear drive mechanism 64; Gear lever 7; Positioning and clamping mechanism 8, positioning plate 81, first upper pressure foot 82, linear drive mechanism 83. Detailed Implementation

[0017] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0018] In the description of this utility model, the use of "first" and "second" is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features or the order of the technical features.

[0019] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0020] Reference Figures 1 to 3 This utility model discloses a shoulder strap buckle device, including a buckling mechanism 3, a traction mechanism 4, and an insert plate 5, as shown in the figure. Figure 4 and Figure 5 The adjusting buckle 1 includes a front sidewall 11, a crossbar 12 and a rear sidewall 13 arranged sequentially in the front-back direction. A first through hole 14 is formed between the front sidewall 11 and the crossbar 12, and a second through hole 15 is formed between the crossbar 12 and the rear sidewall 13.

[0021] The clamping mechanism 3 is used to clamp the front sidewall 11 and the rear sidewall 13 so that the crossbar 12 is parallel to the left and right directions. The clamping mechanism 3 is also used to drive the adjusting buckle 1 to rotate around the central axis of the crossbar 12 so that the first through hole 14 and the second through hole 15 interchange positions in the front and back directions and the axes of the first through hole 14 and the second through hole 15 are both parallel to the up and down directions. The traction mechanism 4 includes a traction claw 41 that can move in the front and back directions. The traction claw 41 is used to clamp the end of the free end of the shoulder strap 2 and pull the free end from back to front so that the free end is in the clamp. Above the buckle mechanism 3; the insert plate 5 is vertically set and can be raised and lowered. The lower end of the insert plate 5 is directly opposite the first through hole 14 in front of the adjusting buckle 1 on the buckle mechanism 3. One end of the shoulder strap 2 is above the rear side wall 13. The lower end of the insert plate 5 descends and rises to pass the free end through the first through hole 14 from top to bottom. The buckle mechanism 3 drives the front side wall 11 to rotate upward and rotate 180° around the central axis of the crossbar 12. The lower end of the insert plate 5 descends and rises again to pass the free end through the second through hole 15 from top to bottom.

[0022] Initially, one end of the shoulder strap 2 is connected to the crossbar 12 of the adjusting buckle 1, and the adjusting buckle 1 is placed on the clamping mechanism 3, as shown in the reference. Figure 5 The first through hole 14 and the second through hole 15 are both parallel to the vertical direction. The front sidewall 11 and the rear sidewall 13 are distributed front and back. The first through hole 14 is in front of the second through hole 15. The crossbar 12 is parallel to the horizontal direction. One end of the shoulder strap 2 is above the rear sidewall 13. The free end of the shoulder strap 2 is swung from bottom to top and close to the traction claw 41. The traction claw 41 clamps the end of the free end and pulls the free end from back to front, so that the free end passes above the clamping mechanism 3 from back to front. The free end abuts against the adjusting buckle 1 on the clamping mechanism 3 and covers the first through hole 14 and the second through hole 15. Then the traction claw 41 releases the end of the free end, and the lower end of the insert plate 5 moves from top to bottom. The lower end of the insert plate 5 presses down on the free end, and the end of the free end passes through the first through hole 14 and moves below the first through hole 14 (e.g., Figure 5 (As shown), then the insert plate 5 is reset above the clamping mechanism 3, refer to Figure 6 The clamping mechanism 3 drives the front sidewall 11 to rotate upwards and rotate 180° around the central axis of the crossbar 12, causing the front sidewall 11 and the rear sidewall 13 to interchange positions. The front sidewall 11 moves to the rear of the crossbar 12, and the rear sidewall 13 and the front sidewall 11 are distributed front and back. At this time, the free end rests on the rear sidewall 13 (e.g., Figure 6 (as shown), refer to Figure 7 Then, the lower end of the insert plate 5 moves downwards again to allow the free end to pass through the second through hole 15 from top to bottom. The free end passes through the second through hole 15 and moves below the second through hole 15 (e.g., Figure 7 (As shown), then the insert plate 5 returns to its original position above the clamping mechanism 3 to complete the shoulder strap buckling.

[0023] The shoulder strap 2 is flexible. The lower end of the insert plate 5 presses down on the free end, allowing it to pass through the first through hole 14 / second through hole 15. After a portion of the free end passes through the first through hole 14 / second through hole 15, the lower end of the insert plate 5 continues to move downwards, until the free end is below the adjusting buckle 1. This shoulder strap fastening device replaces manual fastening, quickly passing the free end of the shoulder strap through the first through hole of the adjusting buckle and then through the second through hole in the opposite direction. This reduces manual labor, lowers labor costs, and improves fastening efficiency.

[0024] When feeding the adjusting buckle 1 and shoulder strap 2, in order to facilitate placing the adjusting buckle 1 on the clamping mechanism 3, refer to... Figure 8 Initially, the shoulder strap 2 is in a drooping state. The second through hole 15 and the first through hole 14 are distributed front and back. The length of the crossbar 12 extends in the left-right direction, and the axial direction of the second through hole 15 and the first through hole 14 extends in the up-down direction. When the adjusting buckle 1 is placed on the clamping mechanism 3, the front sidewall 11 rotates upward and rotates 180° around the central axis of the crossbar 12, so that the front sidewall 11 rotates to the front of the crossbar 12. Figure 4 state.

[0025] Reference Figure 1 or Figure 2 The shoulder strap fastening device also includes a frame and a lifting drive mechanism 51. The lifting drive mechanism 51 is mounted on the frame, with its output end facing downwards and connected to the upper end of the insert plate 5. The lifting drive mechanism 51 drives the insert plate 5 to rise and fall. The clamping mechanism 3 and the traction mechanism 4 are both mounted on the frame.

[0026] In some of these embodiments, reference is made to Figure 1 and Figure 2 The buckling mechanism 3 includes a support frame 31, a rotating shaft 32, and a rotation drive mechanism 33. The shoulder strap buckling device also includes a frame, with the support frame 31 mounted on the frame. (Refer to...) Figure 9 A rotating shaft 32 is rotatably mounted on a support frame 31, parallel to the left and right directions. Two clamping plates 321 are provided on the end face of the rotating shaft 32. Limiting grooves 3211 are provided on the two opposing sides of the two clamping plates 321. The two limiting grooves 3211 are symmetrically distributed with the central axis of the rotating shaft 32 as the center. The two limiting grooves 3211 allow the front side wall 11 and the rear side wall 13 to extend from left to right, respectively. The rotating drive mechanism 33 is connected to the support frame 31 or the frame. The output end of the rotating drive mechanism 33 is connected to the rotating shaft 32 for transmission. The rotating drive mechanism 33 drives the rotating shaft 32 to rotate, so that the two clamping plates 321 rotate around the central axis of the rotating shaft 32, thereby driving the adjusting buckle 1 on the two clamping plates 321 to rotate around the central axis of the crossbar 12, and thus causing the first through hole 14 and the second through hole 15 to interchange positions in the front and rear directions.

[0027] It should be noted that the two limiting grooves 3211 pass through the left end face of the two clamping plates 321 respectively, so that when the adjusting buckle 1 moves from left to right, the front side wall 11 and the rear side wall 13 extend into the two limiting grooves 3211 from left to right respectively.

[0028] Reference Figure 9 In some embodiments, the clamping mechanism 3 further includes a left and right drive mechanism 34 and a push rod 35. The left and right drive mechanism 34 is connected to the support frame 31 or the frame. A clearance hole is provided at the central axis position of the rotating shaft 32. The push rod 35 passes through the clearance hole and extends to the position between the two clamping plates 321. The output end of the left and right drive mechanism 34 is connected to the push rod 35. The left and right drive mechanism 34 is used to drive the push rod 35 to move in the left and right direction. Initially, the left and right drive mechanism 34 drives the push rod 35 to move to the right. The push rod 35 is retracted between the two limiting grooves 3211 to prevent the push rod 35 from blocking the front side wall 11 and the rear side wall 13 from extending into the two limiting grooves 3211 from left to right. When the free end of the shoulder strap 2 is inserted into the first through hole 14 and the second through hole 15, the left and right drive mechanism 34 drives the push rod 35 to move to the left. The push rod 35 can push off the adjusting buckle 1 on the two clamping plates 321 to realize the automatic feeding and buckling of the shoulder strap 2.

[0029] In another embodiment, the clamping mechanism 3 can be a rotatable jaw, with the two clamping arms of the jaw clamping the front sidewall 11 and the rear sidewall 13 of the adjusting buckle 1, and the jaw carrying the adjusting buckle 1 to rotate around the central axis of the crossbar 12.

[0030] Reference Figure 1 and Figure 3 In some embodiments, the shoulder strap fastening device further includes a guide mechanism 6 located to the left of the clamping mechanism 3. The guide mechanism 6 has a guide hole 61, the axis of which is parallel to the left and right direction. The guide hole 61 is directly opposite the clamping mechanism 3 and is used for one end of the adjusting buckle 1 and the shoulder strap 2 to extend into. When one end of the adjusting buckle 1 and the shoulder strap 2 is moved from left to right, one end of the adjusting buckle 1 and the shoulder strap 2 is first inserted into the guide hole 61 and guided by the guide hole 61 to the clamping mechanism 3. This facilitates the precise placement of the adjusting buckle 1 in the clamping position on the clamping mechanism 3 and improves the efficiency of feeding the adjusting buckle 1 and the shoulder strap 2 to the clamping mechanism 3.

[0031] Specifically, the guide hole 61 is directly opposite the two limiting grooves 3211. The two limiting grooves 3211 are in the clamping position. The guide hole 61 is used for the adjustment buckle 1 and one end of the shoulder strap 2 to extend into the two limiting grooves 3211 respectively, so that the front side wall 11 and the rear side wall 13 can be extended into the two limiting grooves 3211 respectively.

[0032] It should be noted that the gap between the guide mechanism 6 and the clamping mechanism 3 should be smaller than the length or width of the adjusting buckle 1 in the left-right direction, so that the adjusting buckle 1 can be transferred to the clamping mechanism 3 after passing through the guide hole 61. This avoids the clamping position that cannot be moved to the clamping mechanism 3 due to the gap between the guide mechanism 6 and the clamping mechanism 3 allowing the adjusting buckle 1 to move perpendicular to the left-right direction.

[0033] Reference Figure 3 In some embodiments, the guide mechanism 6 includes a guide plate 62 and two guide blocks 63. Both guide blocks 63 are connected to the lower surface of the guide plate 62, and the two guide blocks 63 protrude to the left from the left end face of the guide plate 62. That is, the position of the left end face of the two guide blocks 63 is further to the left than the position of the left end face of the guide plate 62, so that the upper surface of the left end of the two guide blocks 63 is not blocked by the guide plate 62. An upper hole is formed between the guide plate 62 and the two guide blocks 63 for the adjustment buckle 1 to pass through from left to right, and a lower hole is formed between the two guide blocks 63 for one end of the shoulder strap 2 to pass through from left to right. The lower hole gradually decreases in size from left to right, and the upper hole and the lower hole form a guide hole 61.

[0034] When adjusting buckle 1 and shoulder strap 2, the free end of shoulder strap 2 hangs down (as shown). Figure 8 As shown, place the right end of the adjusting buckle 1 on the upper surface of the left end of the two guide blocks 63, and extend one end of the shoulder strap 2 between the two guide blocks 63. Pull the shoulder strap 2 from left to right, and the adjusting buckle 1 will slide from left to right on the two guide blocks 63. One end of the shoulder strap 2 passes through the lower hole from left to right, and finally the adjusting buckle 1 moves to the clamping position on the clamping mechanism 3, that is, the front side wall 11 and the rear side wall 13 respectively extend into the two limiting grooves 3211. The operation method is simple, and the adjusting buckle 1 and shoulder strap 2 can be quickly loaded, and the loading efficiency is high.

[0035] Reference Figure 3 The guiding mechanism 6 also includes a third front-to-back driving mechanism 64, which can be fixed to the frame. The output end of the third front-to-back driving mechanism 64 is connected to the guide plate 62. The third front-to-back driving mechanism 64 drives the guide plate 62 to move in the front-to-back direction. The height of the guide hole 61 is equal to the height of the clamping mechanism 3. Initially, the guide plate 62 and the two guide blocks 63 are positioned further forward than the clamping mechanism 3. When it is necessary to feed the adjusting buckle 1 and the shoulder strap 2, the third front-to-back driving mechanism 64 drives the guide plate 62 to move backward, so that the guide hole 61 is aligned with the clamping position on the clamping mechanism 3. This allows the adjusting buckle 1 to pass through the guide hole 61 from left to right and move to the clamping position on the clamping mechanism 3. After the shoulder strap 2 is fastened, the third front-to-back driving mechanism 64 drives the guide plate 62 to move forward and reset. The guide plate 62 and the two guide blocks 63 do not obstruct the left side of the clamping mechanism 3, making it easier for the adjusting buckle 1 and the shoulder strap 2 on the clamping mechanism 3 to be fed.

[0036] It is known that when one end of the shoulder strap 2 is connected to the crossbar 12, the shoulder strap 2 can rotate around the crossbar 12. When the insert plate 5 drives the shoulder strap 2 to pass through the first through hole 14, as... Figure 5 As shown, the middle part of the shoulder strap 2 needs to be limited to prevent the shoulder strap 2 from passing through the first through hole 14 completely.

[0037] Reference Figure 2 In some embodiments, the shoulder strap fastening device further includes a stop bar 7, which is located behind the clamping mechanism 3. The stop bar 7 is used to allow the free end to wrap around from bottom to top and from back to front. When the free end wraps around from bottom to top and from back to front, the middle part of the shoulder strap 2 will be blocked by the stop bar 7 to prevent the shoulder strap 2 from passing through the first through hole 14 completely.

[0038] Reference Figure 1 In some embodiments, the shoulder strap fastening device further includes an upper positioning clamping mechanism 8, which is located behind the fastening mechanism 3. The upper positioning clamping mechanism 8 is used to clamp and position the middle part of the free end. The lower end of the insert plate 5 presses down on the area of ​​the shoulder strap 2 corresponding to the first through hole 14 / second through hole 15, so that the shoulder strap 2 passes through the first through hole 14 / second through hole 15 sequentially from the area corresponding to the first through hole 14 / second through hole 15 to the end of the free end.

[0039] The traction claw 41 clamps the end of the free end and pulls the free end from back to front, so that the free end passes over the clamping mechanism 3 from back to front. The free end abuts against the adjusting buckle 1 on the clamping mechanism 3 and covers the first through hole 14 and the second through hole 15. Then the traction claw 41 releases the end of the free end. At this time, the upper positioning clamping mechanism 8 clamps and positions the middle part of the free end. During the process of the lower end of the insert plate 5 pressing down on the shoulder strap 2, since the middle part of the free end is clamped and fixed, only the shoulder strap 2 between the clamping mechanism 3 and the traction claw 41 can move downward. That is, the shoulder strap 2 can pass through the first through hole 14 / second through hole 15 in the area corresponding to the first through hole 14 / second through hole 15.

[0040] Reference Figure 2In some embodiments, the upper positioning clamping mechanism 8 includes a positioning plate 81 and a first upper pressure foot 82. The positioning plate 81 is located behind the clamping mechanism 3. The first upper pressure foot 82 can swing or rise and fall in the front-back direction to press the free end down onto the upper positioning plate 81. Initially, the first upper pressure foot 82 swings or rises in the front-back direction, so that when the traction claw 41 moves from front to back, it passes through the area between the positioning plate 81 and the first upper pressure foot 82. When the traction claw 41 clamps the end of the free end and pulls the free end from back to front, the end of the free end can pass through the area between the positioning plate 81 and the first upper pressure foot 82 from back to front. When the traction claw 41 stops pulling the end of the free end forward, the middle part of the free end is between the positioning plate 81 and the first upper pressure foot 82. The first upper pressure foot 82 swings or falls in the front-back direction, and the first upper pressure foot 82 can press the middle part of the free end onto the positioning plate 81, that is, to achieve clamping and positioning of the middle part of the free end.

[0041] Reference Figure 2 The upper positioning and clamping mechanism 8 also includes a linear drive mechanism 83, which is hinged to the frame. The output end of the linear drive mechanism 83 is hinged to the middle of the first upper pressure foot 82, and the right end of the first upper pressure foot 82 is hinged to the right end of the positioning plate 81. The positioning plate 81 is fixed to the frame. The output end of the linear drive mechanism 83 can drive the left end of the first upper pressure foot 82 to swing upward or downward.

[0042] Reference Figure 3 In some embodiments, the traction mechanism 4 further includes a first front and rear drive mechanism 42, which can be fixed by connecting to the frame. The output end of the first front and rear drive mechanism 42 is connected to the traction gripper 41, and the first front and rear drive mechanism 42 is used to drive the traction gripper 41 to move in the front and rear direction.

[0043] In some embodiments, the traction gripper 41 includes a second front-rear drive mechanism 411, a connecting plate 412, a support plate 413, and a second upper pressure foot 414 hinged to the support plate 413. The support plate 413 and the second upper pressure foot 414 form a gripper structure. The output end of the first front-rear drive mechanism 42 is connected to the second front-rear drive mechanism 411 and the support plate 413. The second front-rear drive mechanism 411 and the support plate 413 are relatively fixed. The output end of the second front-rear drive mechanism 411 is hinged to one end of the connecting plate 412. The other end of 12 is hinged to the second upper pressure foot 414. The second front and rear drive mechanism 411 drives the second upper pressure foot 414 to swing through the connecting plate 412 to realize the opening and closing of the gripper structure. When the second upper pressure foot 414 swings toward the support plate 413, the second upper pressure foot 414 can press the end of the free end onto the support plate 413 to realize the clamping and positioning of the end of the free end. When the second upper pressure foot 414 swings away from the support plate 413, the second upper pressure foot 414 and the support plate 413 will release the end of the free end.

[0044] The first front-to-back drive mechanism 42, the second front-to-back drive mechanism 411, the third front-to-back drive mechanism 64, the linear drive mechanism 83, and the left-to-right drive mechanism 34 can all be cylinders or lead screw pairs. The rotary drive mechanism 33 can be a motor or a rotary cylinder.

[0045] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0046] Of course, this utility model is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of this utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A shoulder strap fastening device, characterized in that, include: The adjusting buckle includes a front sidewall, a crossbar, and a rear sidewall arranged sequentially, with a first through hole formed between the front sidewall and the crossbar, and a second through hole formed between the crossbar and the rear sidewall; The clamping mechanism is used to clamp the front sidewall and the rear sidewall so that the crossbar is parallel to the left and right direction. The clamping mechanism is also used to drive the adjusting buckle to rotate around the central axis of the crossbar so that the first through hole and the second through hole interchange positions in the front and rear direction and the axes of the first through hole and the second through hole are both parallel to the up and down direction. The traction mechanism includes a traction gripper that can move in a front-back direction, the traction gripper being used to grip the end of the free end of the shoulder strap and pull the free end from back to front so that the free end is above the clamping mechanism; The insert plate is vertically positioned and can be raised and lowered. The lower end of the insert plate is directly opposite the first through hole in front of the adjusting buckle on the clamping mechanism. One end of the shoulder strap is above the rear sidewall. The lower end of the insert plate lowers and rises to pass the free end through the first through hole from top to bottom. The clamping mechanism drives the front sidewall to rotate upward and rotate 180° around the central axis of the crossbar. The lower end of the insert plate lowers and rises again to pass the free end through the second through hole from top to bottom.

2. The shoulder strap fastening device according to claim 1, characterized in that, The clamping mechanism includes a support frame, a rotating shaft, and a rotary drive mechanism. The rotating shaft is rotatably mounted on the support frame, parallel to the left-right direction. Two clamping plates are provided on the end face of the rotating shaft. Each of the two clamping plates has a limiting groove on its two opposing sides. The two limiting grooves are symmetrically distributed with the central axis of the rotating shaft as the center. The two limiting grooves allow the front sidewall and the rear sidewall to extend into them from left to right, respectively. The rotary drive mechanism is connected to the support frame, and its output end is connected to the rotating shaft to drive the adjusting buckle on the two clamping plates to rotate around the central axis of the crossbar.

3. The shoulder strap fastening device according to claim 2, characterized in that, The clamping mechanism further includes a left and right drive mechanism and a push rod. A clearance hole is provided at the central axis position of the rotating shaft. The push rod passes through the clearance hole and extends to the position between the two clamping plates. The output end of the left and right drive mechanism is connected to the push rod. The left and right drive mechanism is used to drive the push rod to move in the left and right direction so that the push rod pushes down the adjusting buckle on the two clamping plates.

4. A shoulder strap fastening device according to any one of claims 1 to 3, characterized in that, It also includes a guide mechanism located to the left of the clamping mechanism. The guide mechanism has a guide hole with its axis parallel to the left-right direction. The guide hole is directly opposite the clamping mechanism and is used for the adjustment buckle and one end of the shoulder strap to extend into it so as to load the adjustment buckle onto the clamping mechanism.

5. A shoulder strap fastening device according to claim 4, characterized in that, The guiding mechanism includes a guide plate and two guide blocks. Both guide blocks are connected to the lower surface of the guide plate, and both guide blocks protrude to the left from the left end face of the guide plate. An upper hole is formed between the guide plate and the two guide blocks for the adjusting buckle to pass through from left to right. A lower hole is formed between the two guide blocks for one end of the shoulder strap to pass through from left to right. The lower hole gradually decreases in size from left to right. The upper hole and the lower hole form the guide hole.

6. A shoulder strap fastening device according to claim 1, characterized in that, It also includes a stop bar, which is located behind the clamping mechanism. The stop bar is used to allow the free end to wrap around from bottom to top and from back to front, so as to prevent the shoulder strap from passing through the first through hole completely.

7. A shoulder strap fastening device according to claim 1, characterized in that, It also includes an upper positioning clamping mechanism, which is located behind the clamping mechanism. The upper positioning clamping mechanism is used to clamp and position the middle part of the free end. The lower end of the insert plate presses down on the area of ​​the shoulder strap corresponding to the first through hole / second through hole, so that the shoulder strap passes through the first through hole / second through hole sequentially from the area corresponding to the first through hole / second through hole to the end of the free end.

8. A shoulder strap fastening device according to claim 7, characterized in that, The upper positioning and clamping mechanism includes a positioning plate and a first upper pressure foot. The positioning plate is located behind the clamping mechanism. The first upper pressure foot can swing or rise and fall in the front-back direction to press the free end down onto the positioning plate.

9. A shoulder strap fastening device according to claim 1, characterized in that, The traction mechanism further includes a first front and rear drive mechanism, the output end of which is connected to the traction gripper. The first front and rear drive mechanism is used to drive the traction gripper to move in the front and rear direction.

10. A shoulder strap fastening device according to claim 9, characterized in that, The traction gripper includes a second front and rear drive mechanism, a connecting plate, a support plate, and a second upper pressure foot hinged to the support plate. The output end of the first front and rear drive mechanism is connected to the second front and rear drive mechanism and the support plate. The output end of the second front and rear drive mechanism is hinged to one end of the connecting plate, and the other end of the connecting plate is hinged to the second upper pressure foot. The second front and rear drive mechanism is used to drive the second upper pressure foot to press the end of the free end down onto the support plate.

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