Material taking and hemming mechanism

Abstract

The utility model discloses a material taking and hemming mechanism which comprises a material taking mechanism and a hemming mechanism. The material taking mechanism comprises a material taking mounting base, a material taking clamp assembly and a material taking driving mechanism. The material taking driving mechanism is arranged on the material taking mounting seat, the material taking driving mechanism drives the material taking clamp assembly to move left and right, after the material taking mechanism finishes material taking, the hemming mechanism hems the end of the shoulder strap on the material taking mechanism, and the device is characterized by further comprising a material taking avoiding mechanism. The material taking mechanism is used for clamping the two ends of the annular shoulder strap, and when the material taking mechanism takes materials, the material taking avoiding mechanism is used for driving the hemming mechanism to avoid the material taking mechanism.

Description

Technical Field

[0001] The utility model relates to the field of sewing processing equipment, in particular to a material taking and hemming mechanism for strip material sewing. Background Technique

[0002] Chinese Patent Document CN110512366B discloses a shoulder strap machine, which includes a workbench assembly and a sewing assembly. The workbench assembly includes a frame and a workbench board, and the workbench board is arranged on the frame. The sewing assembly includes a sewing machine head and a presser foot. The sewing machine head is fixedly arranged in the middle of the workbench board along the front-back direction. The presser foot is arranged on the sewing machine head. Its structural features are: it also includes a feeding assembly, a first material clamping assembly, a cutting assembly, a flipping assembly and a feeding assembly. The lower left side of the sewing machine head is hingedly connected to the workbench board. The feeding assembly includes a mounting plate, a feeding driving mechanism and a pressing roller mechanism. The mounting plate is vertically fixedly arranged on the right part of the workbench board along the front-back direction. The feeding driving mechanism and the pressing roller mechanism are both arranged on the mounting plate, and the pressing roller mechanism is driven by the feeding driving mechanism to actively feed the shoulder strap. The first material clamping assembly is used to clamp and fix the shoulder strap. The first material clamping assembly is arranged on the mounting plate of the feeding assembly. The cutting assembly is arranged on the mounting plate of the feeding assembly and is used to cut off the shoulder strap. The flipping assembly is used to fold the shoulder strap into a ring with an opening facing forward. The feeding assembly is used to send the ring-shaped shoulder strap to the sewing machine head, and the sewing assembly stitches the two ends of the ring-shaped shoulder strap to the corresponding garment fabric. The manipulator driving mechanism 72 of this structure drives the flipping manipulator 71 to pull the shoulder strap forward to the position after the first backward pull, and at this time, the shoulder strap forms a ring with an opening facing forward. When the grade of the sewn garment is relatively high, it is necessary to press the two ends of the shoulder strap inside for sewing (equivalent to hemming during garment sewing, rolling the raw edge inside for sewing, making it look more flat outside and the raw edge is not easy to spread out), so that the integrity of the shoulder strap looks better and more flat outside. At this time, the lower clamping part 82-11 of the lower clamping plate 82-1 and the upper clamping part 82-21 of the upper clamping plate 82-2 of the feeding clamping assembly 82 of the feeding assembly clamp the two ends of the corresponding ring-shaped shoulder strap to be sewn, and a section of the part to be hemmed is left at the front of the two ends, and then it is sent to the corresponding sewing machine head. The air blowing hole 82-11a of the lower clamping part 82-11 of the lower clamping plate 82-1 blows air forward, and the part of the front ends of the two ends of the ring-shaped shoulder strap to be hemmed is kept in a horizontal state through the air flow. The two U-shaped ends of the folding clip 91 of the folding component 9 are arranged along the up-down direction, with an opening facing horizontally to the right, and then are inserted into the upper and lower sides of the part exposed at the front of the two ends of the shoulder strap. The swinging cylinder 92-1 drives the folding clip 91 to rotate 270 degrees, and the folding clip 91 flips the two ends of the shoulder strap backward from above to a horizontal state. At this time, the two U-shaped ends of the folding clip 91 are arranged along the front-back direction, with an opening facing vertically to the right. Then, the corresponding fabric is placed above the end of the shoulder strap, and the presser foot 22 presses downward on the fabric and the shoulder strap, and the end of the folding clip 91 located at the rear is located in the middle of the U-shape of the presser foot 22. After pressing, the folding clip 91 of the folding component 9 moves to the left and at the same time rotates 270 degrees in the reverse direction and resets. This structure is suitable for the case where the shoulder strap is located outside the fabric, and the shoulder strap can be seen exposed after sewing is completed.There are also customer requirements now that the shoulder strap part should be located inside the fabric. That is, when the shoulder strap is sewn, the shoulder strap forms a ring with an opening facing backward, and the shoulder strap part and the fabric are on the same side. After sewing, the shoulder strap cannot be seen from the outside. The feeding component and the folding component of the above shoulder strap machine cannot complete the hemming of the rear end when the shoulder strap forms a ring with an opening facing backward. Summary of the Invention

[0003] The purpose of the present invention is to provide a material taking and hemming mechanism with a simple structure that can adapt to the hemming of the rear end when the shoulder strap of a shoulder strap machine forms a ring with an opening facing backward.

[0004] The basic technical solution to achieve the purpose of the present invention is: a material taking and hemming mechanism, including a material taking mechanism and a hemming mechanism. The material taking mechanism includes a material taking mounting seat, a material taking clamp assembly, and a material taking driving mechanism. The material taking driving mechanism is arranged on the material taking mounting seat, and the material taking clamp assembly is driven by the material taking driving mechanism to move left and right. After the material taking mechanism finishes taking the material, the hemming mechanism hemms the shoulder strap end on the material taking mechanism. Its structural feature is: it further includes a material taking avoidance mechanism. The material taking mechanism is used to clamp the two ends of the shoulder strap that has already formed a ring. When the material taking mechanism takes the material, the material taking avoidance mechanism is used to drive the hemming mechanism to avoid the material taking mechanism.

[0005] Further, for the sake of compact structure, the material taking avoidance mechanism includes an avoidance driving device. The avoidance driving device drives the hemming mechanism to move up and down.

[0006] Further, for the sake of improving the running smoothness, the material taking avoidance mechanism further includes an avoidance guiding component. The avoidance driving device drives the hemming mechanism to move up and down along the avoidance guiding component.

[0007] Further, the hemming mechanism includes a material rolling clamp, a flipping mechanism, a material rolling driving mechanism, a material rolling guiding component, and a hemming mounting seat. The material rolling clamp is in a U shape with an opening facing left. The avoidance driving device drives the hemming mounting seat to move up and down.

[0008] The flipping mechanism includes a flipping motor or a swinging air cylinder, a mounting shaft, and a flipping device mounting seat. The flipping motor is fixedly arranged on the flipping device mounting seat, and the mounting shaft is coaxially and fixedly arranged on the motor shaft of the flipping motor. The material rolling clamp is fixedly arranged on the mounting shaft. The material rolling driving mechanism is fixedly arranged on the hemming mounting seat. The material rolling guiding component is arranged on the hemming mounting seat. The flipping device mounting seat is arranged on the material rolling guiding component, and the material rolling driving mechanism drives the flipping device mounting seat to move left and right along the material rolling guiding component.

[0009] The utility model has the following beneficial effects: (1) The material taking and curling mechanism of the utility model has a simple structure, and a material taking avoidance mechanism is added. It can be used for the case where the shoulder strap forms a ring with an opening facing backward, and can also adjust the positions of the material taking clamp assembly and the coil clamp in the front-back direction as needed for the case where the shoulder strap forms a ring with an opening facing forward, greatly improving the application range. The avoidance driving device is provided with a guiding component, which is beneficial to improving the running stability and accuracy of the curling mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 FIG. is a schematic structural diagram of the material taking and curling mechanism of the utility model.

[0011] Figure 2 is Figure 1 the top view schematic diagram of

[0012] Figure 3 is Figure 1 the right view schematic diagram of

[0013] Figure 4 is Figure 1 the left view schematic diagram of

[0014] Figure 5 is the schematic diagram when observing from the Figure 1 upper left front of

[0015] Figure 6 is the schematic diagram when observing from the Figure 1 lower right rear of

[0016] The reference numerals in the drawings are:

[0017] Material taking mechanism 1, material taking mounting seat 11, material taking clamp assembly 12, upper clamping plate 12-1, lower clamping plate 12-2, clamping plate driving device 12-3, clamping plate seat 12-4, material taking driving mechanism 13, material taking driving motor 13-1, synchronous belt assembly 13-2, material taking guiding component 14,

[0018] Curling mechanism 2, coil clamp 21, flipping mechanism 22, flipping motor 22-1, mounting shaft 22-2, flipping device mounting seat 22-3, coil driving mechanism 23, coil guiding component 24, curling mounting seat 25,

[0019] Material taking avoidance mechanism 3, avoidance driving device 31, avoidance guiding component 32. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] In order to make the content of the utility model easier to be clearly understood, the following further details the utility model according to specific embodiments and in conjunction with the drawings. The description of the orientation of the utility model is carried out according to the Figure 1 orientation shown, that is Figure 1The up, down, left, and right directions shown are the up, down, left, and right directions described. Figure 1 The direction faced is the front, and the direction away from Figure 1 is the rear. Terms such as "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance. It should be understood that terms such as "up", "down", "inside", "outside", etc. indicating orientation or positional relationships are based on the positional relationships shown in the drawings, and are only for the convenience of describing the present utility model or simplifying the description, rather than indicating a specific orientation that must be possessed.

[0021] (Embodiment 1)

[0022] See Figures 1 to 6 , the material taking and curling mechanism of the present utility model includes a material taking mechanism 1, a curling mechanism 2, and a material taking avoidance mechanism 3. The material taking mechanism 1 is used to clamp the rear part of a shoulder strap that has formed an annular shape with an opening facing backward. When the material taking mechanism 1 takes the material, the material taking avoidance mechanism 3 is used to drive the curling mechanism 2 to avoid the material taking mechanism 1. After the material taking mechanism 1 finishes taking the material, the curling mechanism 2 curls the end of the rear part of the shoulder strap on the material taking mechanism 1. The material taking avoidance mechanism 3 includes an avoidance driving device 31 and an avoidance guiding component 32. The avoidance driving device 31 uses a cylinder.

[0023] See Figures 1 to 6 , the material taking mechanism 1 includes a material taking mounting seat 11, a material taking clamping component 12, a material taking driving mechanism 13, and a material taking guiding component 14. The material taking mounting seat 11 is mounted on the head of the corresponding shoulder strap machine during use and is arranged along the left-right sewing direction. The avoidance driving device 31 is fixedly arranged on the right part of the material taking mounting seat 11. The avoidance guiding component 32 includes 1 linear guide rail, and the guide rail of the linear guide rail is vertically fixedly arranged on the material taking mounting seat 11 along the up-down direction.

[0024] The material taking clamping component 12 includes an upper clamping plate 12-1, a lower clamping plate 12-2, a clamping plate driving device 12-3, and a clamping plate seat 12-4. The lower clamping plate 12-2 is fixedly arranged on the clamping plate seat 12-4, and the clamping plate driving device 12-3 is fixedly arranged on the clamping plate seat 12-4. The clamping plate driving device 12-3 uses a cylinder, and the upper clamping plate 12-1 is fixedly arranged at the end of the piston rod of the cylinder, located above the lower clamping plate 12-2, and the upper clamping plate 12-1 is driven by the clamping plate driving device 12-3 to move up and down to form a clamping mechanism with the lower clamping plate 12-2.

[0025] The material taking driving mechanism 13 includes a material taking driving motor 13-1 and a synchronous belt assembly 13-2. The material taking driving motor 13-1 is fixedly arranged on the left part of the material taking mounting seat 11.

[0026] The material taking and guiding assembly 14 includes a linear guide rail, which is horizontally fixed on the material taking mounting seat 11 along the left-right direction by its guide rail. The clamping plate seat 12-4 is fixedly arranged on the slider of the linear guide rail. The clamping plate seat 12-4 is drivingly connected to the synchronous belt of the synchronous belt assembly 13-2 through a synchronous belt clamp, so that the material taking driving motor 13-1 drives the material taking clamp assembly 12 to move left and right along the linear guide rail of the material taking and guiding assembly 14 through the synchronous belt assembly 13-2.

[0027] See Figures 1 to 6 , the hemming mechanism 2 includes a material rolling clamp 21, a flipping mechanism 22, a material rolling driving mechanism 23, a material rolling guiding assembly 24 and a hemming mounting seat 25. The material rolling clamp 21 is in a U shape with an opening to the left. The hemming mounting seat 25 is fixedly arranged on the slider of the avoidance guiding assembly 14, and the hemming mounting seat 25 is drivingly connected to the end of the piston rod of the cylinder of the avoidance driving device 31, so that the avoidance driving device 31 drives the hemming mounting seat 25 to move up and down along the avoidance guiding assembly 14.

[0028] The flipping mechanism 22 includes a flipping motor 22-1 or a swinging cylinder (the flipping motor is adopted in this embodiment), a mounting shaft 22-2 and a flipping device mounting seat 22-3. The flipping motor 22-1 is fixedly arranged on the flipping device mounting seat 22-3, and its output shaft is arranged towards the left. The mounting shaft 22-2 is coaxially and fixedly arranged on the motor shaft of the flipping motor 22-1. The material rolling clamp 21 is fixedly arranged on the left end of the mounting shaft 22-2.

[0029] The material rolling driving mechanism 23 adopts a cylinder. The cylinder block of the material rolling driving mechanism 23 is fixedly arranged on the hemming mounting seat 25, and its piston rod extends out to the left. The flipping device mounting seat 22-3 is fixedly connected to the piston rod of the cylinder of the material rolling driving mechanism 23. The material rolling guiding assembly 24 includes a linear guide rail, which is horizontally fixed on the lower front side of the hemming mounting seat 25 along the left-right direction by its guide rail. The flipping device mounting seat 22-3 is fixedly arranged on the slider of the linear guide rail. Thus, the material rolling driving mechanism 23 drives the flipping device mounting seat 22-3 to move left and right along the linear guide rail of the material rolling guiding assembly 24.

[0030] When the material taking and hemming mechanism of the present utility model is in use: it can be applied to a shoulder strap machine that forms a ring-shaped shoulder strap with an opening to the rear. The material taking and avoidance mechanism 3 drives the hemming mechanism 2 to rise. The material taking clamp assembly 12 moves from left to right under the hemming mechanism 2 to take materials. The upper clamping plate 12-1 and the lower clamping plate 12-2 of the material taking clamp assembly 12 clamp the two rear ends of the corresponding to-be-sewn ring-shaped shoulder strap, and a section of the part to be hemmed is left at the rear of the two ends, and then it moves from right to left under the hemming mechanism 2 and is sent to the sewing head of the shoulder strap sewing equipment.

[0031] The material taking and avoiding mechanism 3 drives the curling mechanism 2 to move downward to reset. At this time, the two ends of the U-shaped material curling clamp 21 of the curling mechanism 2 are arranged vertically, with an opening horizontally to the left, and then inserted into the upper and lower sides of the two ends of the shoulder strap. The flipping motor 22-1 drives the material curling clamp 21 to rotate to curl the two ends of the shoulder strap. It can curl upward (at this time, the fabric can be located above the shoulder strap) or downward (at this time, the fabric can be located below the shoulder strap), so that the two ends of the shoulder strap are flipped forward to a horizontal state. After curling, sewing can be carried out. This structure can also be adjusted as needed. By adjusting the positions of the material taking clamp assembly and the material curling clamp in the front-rear direction, it can be applied to the situation where the shoulder strap forms a ring with an opening forward, realizing the multi-purpose of one machine.

[0032] The specific embodiments described above have further elaborated on the purpose, technical solutions, and beneficial effects of the present invention. It should be understood that the above are only specific embodiments of the present invention and are not used to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A material taking and curling mechanism, comprising a material taking mechanism (1) and a curling mechanism (2); the material taking mechanism (1) includes a material taking mounting seat (11), a material taking clamp assembly (12) and a material taking driving mechanism (13); the material taking driving mechanism (13) is arranged on the material taking mounting seat (11), and the material taking clamp assembly (12) is driven by the material taking driving mechanism (13) to move left and right. After the material taking mechanism (1) finishes taking materials, the curling mechanism (2) curls the shoulder strap end on the material taking mechanism (1), and it is characterized in that: It further includes a material taking and avoiding mechanism (3); the material taking mechanism (1) is used to clamp the two ends of the formed annular shoulder strap. When the material taking mechanism (1) takes materials, the material taking and avoiding mechanism (3) is used to drive the curling mechanism (2) to avoid the material taking mechanism (1).

2. The material taking and curling mechanism according to claim 1, wherein: The material taking and avoiding mechanism (3) includes an avoidance driving device (31); the avoidance driving device (31) drives the curling mechanism (2) to move up and down.

3. The material taking and curling mechanism according to claim 2, characterized in that: The material taking and avoiding mechanism (3) further includes an avoidance guiding component (32); the avoidance driving device (31) drives the curling mechanism (2) to move up and down along the avoidance guiding component (32).

4. The material taking and curling mechanism according to claim 2, characterized in that: The curling mechanism (2) includes a material curling clamp (21), a flipping mechanism (22), a material curling driving mechanism (23), a material curling guiding component (24) and a curling mounting seat (25); the material curling clamp (21) is in a U shape with an opening to the left; the avoidance driving device (31) drives the curling mounting seat (25) to move up and down. The flipping mechanism (22) includes a flipping motor (22-1), a mounting shaft (22-2) and a flipping device mounting seat (22-3); the flipping motor (22-1) is fixedly arranged on the flipping device mounting seat (22-3), and the mounting shaft (22-2) is coaxially and fixedly arranged on the motor shaft of the flipping motor (22-1); the material curling clamp (21) is fixedly arranged on the mounting shaft (22-2); the material curling driving mechanism (23) is fixedly arranged on the curling mounting seat (25); the material curling guiding component (24) is arranged on the curling mounting seat (25); the flipping device mounting seat (22-3) is arranged on the material curling guiding component (24), and the material curling driving mechanism (23) drives the flipping device mounting seat (22-3) to move left and right along the material curling guiding component (24).

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