A clamping mechanism for a bag opening machine

Abstract

The utility model discloses a clamping piece clamping mechanism of bag opening machine, including the outer pressure frame that is equipped with the fixed material window, the outer pressure frame below is lifted and is provided with former clamping piece and rear clamping piece, the outer pressure frame is equipped with the drive cylinder no.

Description

Technical Field

[0001] This utility model relates to the technical field of bag opening machine accessories, and in particular to a clamping mechanism for a bag opening machine. Background Technology

[0002] In garment manufacturing, opening pockets is an essential step, primarily used to create pockets in specific locations on clothing for carrying small items such as mobile phones and wallets. The process involves first separately processing the pocket opening and the pocket lip, then sewing the lip onto the opening to complete the opening. The processing of the pocket opening requires cutting, folding, shaping the lip, and sewing. Cutting involves creating an "H" or "Y" shaped slit at the pocket opening; folding involves folding the cut opening inwards to form a folded edge; shaping the lip involves placing the lip on the folded edge; and finally, sewing. For example, utility model patent application number CN202010348853.X discloses a pocket-opening machine for garment pocket processing; utility model patent application number CN202011214831.0 discloses a continuous production garment pocket-opening machine.

[0003] The folding mechanism is an important component of the bag opening machine. It uses a folding knife to fold the cut edge of the bag opening in all directions or only in the front and back directions to fold the edge. The folded edge is fixed by a clamp to prevent it from being pulled back during the retraction of the folding knife. Then, a bag lip corresponding to the folded edge position is set below the clamp. The bag is then moved to the sewing station to sew the folded edge and bag lip to complete the sewing process of the bag.

[0004] In order for the folded edge to be folded and sewn onto the garment piece, a certain sewing gap needs to be left between the clip and the folded edge. As a result, the clip cannot completely cover and press against the folded edge. However, the more area the clip presses against and holds the folded edge, the better the folding and shaping effect of the pocket, and the better the overall shape of the pocket opening after subsequent sewing. Therefore, how to improve the folding and shaping effect of the pocket while ensuring that the folded edge can be sewn normally is an issue that urgently needs to be improved in the current market. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a clamping mechanism for a bag opening machine.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A clamping mechanism for a bag opening machine includes an outer pressure frame with a material setting window. A front clamp and a rear clamp, corresponding to the front and rear long sides of the material setting window, are vertically arranged below the outer pressure frame. The outer pressure frame is provided with a first driving cylinder for driving the front clamp to move back and forth and a second driving cylinder for driving the rear clamp to move back and forth. The outer pressure frame is provided with a clamping plate that abuts against the front clamp and the rear clamp.

[0008] Preferably, one side of the clamping plate is fixed to the outer pressure frame, and the other side of the clamping plate abuts against the front clamping plate and the rear clamping plate.

[0009] Preferably, the clamping plate is mounted on the outer pressure frame by means of a cylinder lifting mechanism.

[0010] Preferably, the outer pressure frame is provided with a front slide rail extending in the front-rear direction, and the front clamp is connected to a front slide plate that is slidably disposed on the front slide rail.

[0011] Preferably, a lifting cylinder is provided on the front sliding plate, and the lifting cylinder is connected to the front clamping plate via a front connecting plate.

[0012] Preferably, the outer pressure frame is provided with a rear slide rail extending in the front-to-back direction, and the rear clamp is connected to a rear slide plate that is slidably disposed on the rear slide rail.

[0013] Preferably, the rear slide plate is provided with a second lifting cylinder, which is connected to the rear clamp plate via a rear connecting plate.

[0014] Preferably, the outer pressure frame is provided with a front plate and a rear plate that are arranged opposite to each other to form a fixed material window, and the outer pressure frame is provided with a front plate cylinder that drives the front plate of the window to move back and forth and a rear plate cylinder that drives the rear plate of the window to move back and forth.

[0015] The beneficial effects of this utility model are:

[0016] 1. By connecting the front and rear clamps with separate front and rear drive connections, the front and rear clamps can extend and retract relative to the front and rear long sides of the fixed material window. During bag folding, the front clamp can move backward and the rear clamp can move forward to increase the area of ​​the front and rear clamps pressing and holding the folded edge, and improve the folding and shaping effect of the folded edge. When sewing is required, the front clamp moves forward and the rear clamp moves backward to provide a sewing gap for the sewing operation, thereby ensuring that the pocket can be sewn normally.

[0017] 2. A clip partition is installed below the front and rear clips, and a bag lip is placed below the flange. When the front and rear clips extend and retract to provide a sewing gap for the sewing operation, the clip partition is positioned between the front and rear clips and the bag lip. Therefore, the bag lip will not be displaced during the extension and retraction of the front and rear clips, resulting in a better overall sewing effect for the pocket and improving the yield rate of pocket production. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0019] Figure 2 for Figure 1 Enlarged diagram of point A;

[0020] Figure 3 This is a schematic diagram of the structure of the present invention. Figure 2 ;

[0021] Figure 4 This is a schematic diagram of the internal structure of this utility model;

[0022] Figure 5 for Figure 4 Enlarged diagram of point B;

[0023] Figure 6 This is a schematic diagram showing the fit between the front and rear clamps of this utility model.

[0024] In the diagram: outer pressure frame 1, material setting window 11, front panel of window 12, front panel cylinder 121, rear panel of window 13, rear panel cylinder 131, front slide rail 14, rear slide rail 15, front clamping plate 2, drive cylinder 1 21, front sliding plate 22, lifting cylinder 1 23, front connecting plate 24, rear clamping plate 3, drive cylinder 2 31, rear sliding plate 32, lifting cylinder 2 33, rear connecting plate 34, clamping plate partition 4. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0026] In the description of this specification, the terms "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or unit 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.

[0027] Example 1:

[0028] like Figures 1-6As shown, a clamping mechanism for a bag opening machine includes an outer pressure frame 1 with a fixed material window 11. The outer pressure frame 1 has a front plate 12 and a rear plate 13 that are arranged opposite to each other to form the fixed material window 11. The fixed material window 11 is opened between the front plate 12 and the rear plate 13. The outer pressure frame 1 is provided with a front plate cylinder 121 that drives the front plate 12 to move back and forth and a rear plate cylinder 131 that drives the rear plate 13 to move back and forth. The front plate cylinder 121 and the rear plate cylinder 131 drive the front plate 12 and the rear plate 13 to move back and forth, respectively.

[0029] Before the folded edge of the bag opening is turned over, the front panel 12 and the back panel 13 of the window are displaced away from each other. This facilitates the cutting and opening of the garment in the fixed window 11. When the folded edge needs to be folded, the front panel 12 and the back panel 13 of the window move closer to each other. As a result, the corresponding inner long sides of the front panel 12 and the back panel 13 of the window provide abutment and limit for the folding of the edge. That is, the folded edges on the front and back sides abut against the inner long sides of the front panel 12 and the back panel 13 of the window for folding.

[0030] After the folding and turning of the edge is completed, the clip is pressed upward to fix the folded edge. At this time, the front panel 12 and the back panel 13 of the window move away from each other again to avoid interference with the subsequent sewing process.

[0031] Below the outer pressure frame 1, there are front clamping pieces 2 and rear clamping pieces 3 that correspond to the front and rear long sides of the material setting window 11. The front clamping pieces 2 and rear clamping pieces 3 can move upward and press against the outer pressure frame 1, thereby realizing the cooperation of the front clamping pieces 2 and rear clamping pieces 3 to press and hold the folded edge.

[0032] The outer pressure frame 1 is provided with a drive cylinder 21 that drives the front clamping piece 2 to move back and forth. The output shaft of the drive cylinder 21 is connected to the front clamping piece 2. Specifically, the outer pressure frame 1 is provided with a front slide rail 14 extending in the front and back direction. The front clamping piece 2 is connected to a front slide plate 22 that is slidably set on the front slide rail 14. The drive cylinder 21 drives the front slide plate 22 to slide back and forth along the front slide rail 14, so as to drive the front clamping piece 2 to move back and forth synchronously.

[0033] The outer pressure frame 1 is also provided with a second driving cylinder 31 that drives the rear clamping piece 3 to move back and forth. The output shaft of the second driving cylinder 31 is connected to the rear clamping piece 3. Specifically, the outer pressure frame 1 is provided with a rear slide rail 15 extending in the front and rear direction. The rear clamping piece 3 is connected to a rear slide plate 32 that is slidably set on the rear slide rail 15. The second driving cylinder 31 drives the rear slide plate 32 to slide back and forth along the rear slide rail 15, so as to drive the rear clamping piece 3 to move back and forth synchronously.

[0034] By driving the front clamping piece 2 and the rear clamping piece 3 respectively, the front clamping piece 2 and the rear clamping piece 3 can move back and forth relative to the front and rear long sides of the fixed material window 11. Thus, during the bag folding process, the front clamping piece 2 can move backward and the rear clamping piece 3 can move forward. Then, the front clamping piece 2 and the rear clamping piece 3 are driven to move upward to press and hold the folded edge, so that the front clamping piece 2 and the rear clamping piece 3 cooperate to increase the area of ​​the front clamping piece 2 and the rear clamping piece 3 pressing and holding the folded edge, and improve the folding and shaping effect of the folded edge.

[0035] When sewing is required, the front clip 2 moves forward and the rear clip 3 moves backward, meaning the front clip 2 and the rear clip 3 move away from each other to provide a sewing gap for the sewing operation, thereby ensuring that the pocket can be sewn normally.

[0036] Furthermore, the front clip 2 and the rear clip 3 can be independently controlled by the drive cylinder 21 and the drive cylinder 31 respectively. That is, the front clip 2 can move forward first to sew the front edge, and then the rear clip 3 can move backward to sew the rear edge (the rear clip 3 can also move backward first, and then the front clip 2 can move forward), thereby meeting the processing requirements of different pocket production processes.

[0037] A lifting cylinder 23 is provided on the front slide plate 22. The lifting cylinder 23 is connected to the front clamping plate 2 via the front connecting plate 24. The output shaft of the lifting cylinder 23 passes through the front slide plate 22 and is connected to the connecting plate 24. The lifting cylinder 23 controls the lifting displacement of the front clamping plate 2 via the connecting plate 24.

[0038] The rear slide plate 32 is equipped with a second lifting cylinder 33. The second lifting cylinder 33 is connected to the rear clamping plate 3 via a rear connecting plate 34. The output shaft of the second lifting cylinder 33 passes through the rear slide plate 32 and is connected to the connecting plate 34. The second lifting cylinder 33 controls the lifting displacement of the rear clamping plate 3 via the connecting plate 34.

[0039] To further improve the stability of pocket processing, the outer pressure frame 1 is provided with a clamping plate 4 that abuts against the front clamping piece 2 and the rear clamping piece 3. One side of the clamping plate 4 is fixed to the outer pressure frame 1, and the other side of the clamping plate 4 abuts against the front clamping piece 2 and the rear clamping piece 3. The clamping plate 4 always abuts against the lower end of the front clamping piece 2 and the rear clamping piece 3 through its own elasticity.

[0040] When the pocket is sewn, the lip (or zipper) to be sewn needs to be placed below the folded edge. The pocket is then sewn by sewing the folded edge and the lip. However, in this embodiment, the front clip 2 and the rear clip 3 tend to move the lip when they extend and retract to provide a sewing gap for the sewing operation.

[0041] Furthermore, in this embodiment, by abutting the front clip 2 and the rear clip 3 below, and since the clip partition 4 is spaced between the front clip 2, the rear clip 3 and the bag lip, the bag lip will not be displaced during the extension and retraction of the front clip 2 and the rear clip 3. This ensures the stability of the bag lip positioning during subsequent sewing, resulting in a better overall sewing effect for the bag and improving the yield rate of bag production.

[0042] Example 2:

[0043] The difference between this embodiment and embodiment 1 lies in the way the clamping plate 4 is set. In this embodiment, the clamping plate 4 is set on the outer pressure frame 1 by a cylinder for lifting and lowering. The clamping plate 4 is controlled by the cylinder for lifting and lowering displacement, that is, the clamping plate 4 and the front clamping plate 2 and the rear clamping plate 3 keep synchronous lifting and lowering displacement. Thus, when the front clamping plate 2 and the rear clamping plate 3 clamp and fix the flange upward, the clamping plate 4 can move upward synchronously and abut against the lower surface of the front clamping plate 2 and the rear clamping plate 3.

[0044] In this embodiment, the lifting and lowering displacement of the clamping plate 4 can also be achieved by other driving devices, such as by screw drive.

[0045] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A clamping mechanism for a bag opening machine, comprising an outer pressure frame (1) with a material fixing window (11), characterized in that: The outer pressure frame (1) is provided with a front clamping plate (2) and a rear clamping plate (3) that correspond to the front and rear long sides of the material setting window (11). The outer pressure frame (1) is provided with a first driving cylinder (21) that drives the front clamping plate (2) to move back and forth and a second driving cylinder (31) that drives the rear clamping plate (3) to move back and forth. The outer pressure frame (1) is provided with a clamping plate partition (4) that abuts against the front clamping plate (2) and the rear clamping plate (3).

2. The clamping mechanism of a bag opening machine as described in claim 1, characterized in that: One side of the clamping plate (4) is fixed to the outer pressure frame (1), and the other side of the clamping plate (4) abuts against the front clamping plate (2) and the rear clamping plate (3).

3. The clamping mechanism for a bag opening machine as described in claim 1, characterized in that: The clamping plate (4) is mounted on the outer pressure frame (1) by means of a cylinder lifting and lowering.

4. The clamping mechanism for a bag opening machine as described in any one of claims 1 to 3, characterized in that: The outer pressure frame (1) is provided with a front slide rail (14) extending in the front-rear direction, and the front clip (2) is connected to the front slide plate (22) which is slidably set on the front slide rail (14).

5. The clamping mechanism for a bag opening machine as described in claim 4, characterized in that: A lifting cylinder (23) is provided on the front slide plate (22), and the lifting cylinder (23) is connected to the front clamp plate (2) via the front connecting plate (24).

6. The clamping mechanism for a bag opening machine as described in any one of claims 1 to 3, characterized in that: The outer pressure frame (1) is provided with a rear slide rail (15) extending in the front-to-back direction, and the rear clip (3) is connected to the rear slide plate (32) which is slidably set on the rear slide rail (15).

7. The clamping mechanism for a bag opening machine as described in claim 6, characterized in that: The rear slide plate (32) is provided with a second lifting cylinder (33), which is connected to the rear clamp (3) via a rear connecting plate (34).

8. The clamping mechanism of a bag opening machine as described in claim 1, characterized in that: The outer pressure frame (1) is provided with a front plate (12) and a rear plate (13) that are arranged opposite to form a fixed material window (11). The outer pressure frame (1) is provided with a front plate cylinder (121) that drives the front plate (12) to move back and forth and a rear plate cylinder (131) that drives the rear plate (13) to move back and forth.

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