Automatic bag opening machine

By designing an automatic bag-opening machine with detachable visible and concealed stitching components, the problem of not being able to simultaneously implement visible and concealed stitching processes in existing technologies has been solved. This enables the machine to be universally compatible, reduces the factory's machine purchase costs, and improves production flexibility.

CN224031237UActive Publication Date: 2026-03-24YIWU ZHISUN AUTOMATION TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-22
Publication Date
2026-03-24

AI Technical Summary

Technical Problem

Existing automatic bag-opening machines cannot simultaneously perform both visible and invisible stitching processes, requiring factories to purchase two machines, which increases costs.

Method used

An automatic bag-opening machine was designed, equipped with a visible stitching component and a concealed stitching component. Both components are detachably mounted on a fixed mechanism. The machine is compatible with both visible and concealed stitching processes through cylinders and guide rails.

Benefits of technology

This technology enables a single machine to produce both visible and invisible production processes, reducing the factory's equipment purchase costs and improving production flexibility and product qualification rate.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an automatic pocket opening machine which comprises a workbench, and a sewing machine and a laser cutting assembly used for cutting fabric to form pockets are installed on the workbench. The device further comprises a moving mechanism, at least two recycling material plates, a fixing mechanism used for fixing fabric and zippers, a folding knife mechanism used for folding pockets and a circulating feeding mechanism, and further comprises an open thread assembly used for sewing open threads and a dark thread assembly used for sewing dark threads, and the open thread assembly or the dark thread assembly is detachably installed on the fixing mechanism. A factory can switch to use the open thread assembly or the dark thread assembly according to the production requirement, only the open thread assembly or the dark thread assembly needs to be replaced by one machine, clothes of an open thread process can be produced, clothes of a dark thread process can also be produced, a manufacturer does not need to purchase two machines, one machine achieves the universal matching effect, and the production efficiency is improved. And the cost of a manufacturer is greatly reduced.
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Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical technical field especially, is involved in an automatic bag opening machine. BACKGROUND

[0002] In the clothing processing process, the bag opening machine is indispensable auxiliary processing machinery, mainly used for forming the pocket at the specific position of clothing, can be placed for the user mobile phone, wallet, key and small -sized article. The processing process of the bag mouth needs to cut, fold the bag, the bag lip shaping and sewing treatment to the bag mouth position of clothing, cutting is to open the crack of both ends of the bag mouth in the shape of "Y", folding the bag is to fold the bag mouth inward to form the flange after cutting, the bag lip shaping is to place the bag lip on the flange, finally sew.

[0003] Some of the market clothing pocket is adopt clear line technology, clear line refers to the sewing thread exposed on the clothing surface, some clothing for the beauty of the pocket adopts the dark line technology, dark line refers to the sewing thread hidden in the clothing.

[0004] For the factory, the existing automatic bag opening machine can only open the bag for clear line alone, or open the bag for dark line alone, cannot realize that one machine can open the bag for clear line and dark line, cannot realize universal, the manufacturer usually needs to buy two models of bag opening machine for clear line and dark line, the cost is higher. INVENTION CONTENTS

[0005] In order to overcome the defects of the prior art, the utility model provides an automatic bag opening machine. To solve the above technical problems, the utility model provides the following technical scheme.

[0006] An automatic bag opening machine, including workbench, the sewing machine and the laser cutting assembly for cutting pocket are installed on the workbench, still include moving mechanism, at least two circulating material plates, fixed mechanism and circulating feeding mechanism:

[0007] The moving mechanism can be installed on the workbench and move forward and backward and left and right;

[0008] The material plate is used for placing the zipper or the fabric, wherein one material plate is placed on the workbench and located at the side of the fixed mechanism, and the other material plate is installed on the circulating feeding mechanism;

[0009] The fixed mechanism is used for fixing the fabric and the zipper, and can be connected to the moving mechanism and be lifted, and the material plate is taken away to the sewing machine and works through the moving mechanism;

[0010] The folding knife mechanism can be installed on the moving mechanism and move forward and backward and up and down, and is used for folding the cut pocket, the circulating feeding mechanism is used for feeding the material plate to the workbench and taking away the material plate after work;

[0011] The open line assembly and the hidden line assembly are detachably mounted on the fixing mechanism.

[0012] Further, the open line assembly or the hidden line assembly is provided with a connecting block, and the fixing mechanism is provided with a connecting groove matched with the connecting block.

[0013] Further, the open line assembly comprises an inner pressing plate of the open line and an outer pressing plate of the open line wrapped outside the inner pressing plate of the open line.

[0014] Further, the bottom of the inner pressing plate of the open line is provided with a rack.

[0015] Further, the hidden line assembly comprises a hidden line pressing plate, a folding assembly fixed to the upper end of the hidden line pressing plate and a positioning block in contact with the folding assembly.

[0016] Further, the folding assembly comprises a plate body fixed to two ends, an L-shaped folding plate rotationally connected to the plate body and a gas cylinder mounted on the plate body.

[0017] Further, the bottom of the folding plate is provided with a rack-shaped anti-skid pattern.

[0018] Further, the workbench is provided with a positioning mechanism located directly above the material plate.

[0019] Further, the fixing mechanism comprises a longitudinal connecting plate, a transverse pressing plate and a plurality of longitudinal gas cylinders connected with the pressing plate and the connecting plate.

[0020] Further, the folding knife mechanism comprises a front folding knife, a rear folding knife, a left folding knife and a right folding knife.

[0021] Compared with the prior art, the utility model has the beneficial effects that:

[0022] The utility model discloses a sewing machine, including the open line component for sewing open line, the concealed line component for sewing concealed line, open line component or concealed line component optional one uses and detachable installation on fixed mechanism. Factory can need to produce a batch of clothes of open line craft, also can produce a batch of clothes of concealed line craft, and factory can switch and use open line component or concealed line component according to the demand of customer, and one machine only needs to replace open line component or concealed line component, realizes that both can produce open line craft clothes, and also can produce concealed line craft clothes, and manufacturer does not need to purchase two kinds of machines, and one machine realizes the effect of universal, greatly reduces the cost of manufacturer. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is the perspective drawing of the utility model.

[0024] Figure 2 It is the perspective drawing of the moving mechanism and folding knife mechanism of the utility model.

[0025] Figure 3 It is the perspective drawing of the fixed mechanism of the utility model.

[0026] Figure 4 It is the perspective drawing of the circulating feeding mechanism of the utility model.

[0027] Figure 5 It is the perspective drawing of the positioning mechanism of the utility model.

[0028] Figure 6 It is the perspective drawing of the open line component of the utility model.

[0029] Figure 7 It is the perspective drawing of the concealed line component of the utility model.

[0030] Drawing reference: 1, workbench, 2, sewing machine, 3, laser cutting assembly, 4, moving mechanism, 5, fixed mechanism, 6, circulating feeding mechanism, 7, folding knife mechanism, 8, open line component, 9, concealed line component, 10, connecting block, 11, connecting groove, 12, open line inner pressing plate, 13, open line outer pressing plate, 14, sewing line groove, 15, rack, 16, concealed line pressing plate, 17, folding assembly, 18, positioning block, 19, plate body, 20, folding plate, 21, non-slip pattern, 22, material plate, 23, positioning mechanism, 24, material baffle, 25, connecting plate, 26, pressing plate. DETAILED DESCRIPTION

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] like Figures 1-7 As shown, an automatic pocket-opening machine includes a worktable 1, on which a sewing machine 2 for sewing zippers and pockets and a laser cutting assembly 3 for cutting fabric to form pockets are mounted. It also includes a moving mechanism 4, at least two reusable material plates 22, a fixing mechanism 5, a folding knife mechanism 7, and a recirculating feeding mechanism 6.

[0033] The moving mechanism 4 is mounted on the worktable 1 and can move back and forth and left and right by extending and retracting two cylinders in different directions.

[0034] The material plate 22 is used to manually put in zippers or fabric. One material plate 22 is placed on the workbench 1 and located on one side of the fixing mechanism 5, and the other material plate 22 is installed on the circulating feeding mechanism 6.

[0035] The fixing mechanism 5 is used to fix the fabric and zipper, and is vertically connected to the moving mechanism 4. The moving mechanism 4 drives the fixing mechanism to move back and forth and left and right, and the cylinder installed on it extends and retracts to move up and down. During operation, the fixing mechanism 5 first moves to one side to remove the material plate 22 containing the zipper or fabric and resets it. Then, the laser cutting component 3 forms the opening of the pocket. Finally, it moves to the other side to the bottom of the sewing machine 2 to sew the pocket.

[0036] The folding knife mechanism 7 is installed above the moving mechanism 4 and moves synchronously with the moving mechanism 4. The folding knife mechanism 7 is installed on the moving mechanism 4 and can move back and forth through a cylinder and a guide rail. It is used to fold the pockets cut on the fabric.

[0037] The circulating feeding mechanism 6 is located behind the fixed mechanism 5. It moves forward, backward, left, and right by extending and retracting two cylinders in different directions. After the fixed mechanism 5 takes away the material plate 22 that has been unloaded, the circulating feeding mechanism 6 moves forward and sends out another material plate 22 to be placed on the workbench 1. After the fixed mechanism 5 completes the sewing, it resets and rises. The circulating feeding mechanism 6 moves to the rear of the fixed mechanism 5 and takes away the material plate 22, and so on in a cycle.

[0038] The device also comprises a top thread assembly 8 for sewing top thread and a hidden thread assembly 8 for sewing hidden thread, the top thread assembly 8 or the hidden thread assembly 9 is detachably mounted on the fixing mechanism 5. The factory may need to produce a batch of clothes using top thread process, and may also produce a batch of clothes using hidden thread process. The factory can switch between using the top thread assembly 8 or the hidden thread assembly 9 according to the needs of the customers. Only the top thread assembly 8 or the hidden thread assembly 9 needs to be replaced in one machine, which can produce clothes using top thread process and hidden thread process. The manufacturer does not need to purchase two machines, and one machine achieves universal effect, greatly reducing the cost of the manufacturer.

[0039] The top thread assembly 8 or the hidden thread assembly 9 is provided with a connecting block 10, and the fixing mechanism 5 is provided with a connecting groove 11 matched with the connecting block 10. The connecting block 10 is buckled into the connecting groove 11, and then connected by screwing. The installation method is relatively simple, and the disassembly and installation are relatively convenient, achieving quick disassembly and facilitating the switching of the top thread assembly 8 or the hidden thread assembly 9 by production workers.

[0040] The top thread assembly 8 comprises a top thread inner pressing plate 12 and a top thread outer pressing plate 13 wrapped outside the top thread inner pressing plate 12. The top thread inner pressing plate 12 and the top thread outer pressing plate 13 are connected by a connecting block and fixed by a screw. The gap between the top thread inner pressing plate 12 and the top thread outer pressing plate 13 forms a sewing groove 14. The fabric is clamped between the fixing mechanism 5 and the top thread assembly 8, the zipper is clamped between the top thread inner pressing plate 12 and the table top of the workbench 1, and the zipper is opposite to the sewing groove 14. When moving under the sewing machine, sewing along the contour of the sewing groove 14, the zipper is sewn onto the pocket.

[0041] The bottom of the top thread inner pressing plate 12 is provided with a rack 15 for more tightly pressing the zipper to prevent the fabric from shifting during the work process, causing the product to be reworked or even scrapped, and increasing the qualified rate of the product.

[0042] The hidden thread assembly 9 comprises a hidden thread pressing plate 16, a folding assembly 17 fixed to the upper end of the hidden thread pressing plate 16, and a positioning block 18 in contact with the folding assembly 17. The fabric is clamped between the fixing mechanism 5 and the table top of the workbench 1, and the pocket opening is formed by the laser cutting assembly 3, and then the zipper is manually placed. The inside of the fabric is folded out by the folding assembly 17 for sewing hidden thread.

[0043] The folding assembly 17 comprises a plate body 19 fixed to both ends of the hidden thread pressing plate 16, an L-shaped folding plate 20 rotatably connected to the plate body 19, and a gas cylinder installed on the plate body. The folding plate 20 is driven to rotate and fold the fabric by the extension and contraction of the gas cylinder. The two folding plates 20 form a sewing groove 14, and the zipper is placed in the sewing groove 14. The sewing machine 2 sews along the contour of the sewing groove 14 to sew the pocket. The positioning block 18 is used to abut against the folding plate 20 to support the folding plate 20.

[0044] The bottom of the folding plate 20 is provided with a rack-shaped anti-skid pattern 21 for tightly pressing the fabric. The folding plate 20 can effectively drive the fabric to fold during the rotation folding process through the rack-shaped anti-skid pattern 21.

[0045] The workbench 1 is provided with a positioning mechanism 23 located directly above the material plate 22. The positioning mechanism 23 includes a transverse air cylinder, a longitudinal air cylinder, and a material blocking plate 24 installed at the end. The positioning mechanism 23 moves left and right through the expansion and contraction of the transverse air cylinder, and rises and falls through the expansion and contraction of the longitudinal air cylinder. When the material is placed on the material plate 22, the positioning mechanism 24 is lowered and the material blocking plate 24 is placed on the material plate 22, which facilitates the positioning of the zipper and ensures the accuracy of the material placement position.

[0046] The moving mechanism 4 includes a block body and transverse air cylinders, guide rails, and longitudinal air cylinders, guide rails, which realize the left and right, forward and backward movement of the block body through the expansion and contraction of the air cylinders.

[0047] Similarly, the circulating feeding mechanism 6 includes a block body and transverse air cylinders, guide rails, and longitudinal air cylinders, guide rails, which realize the left and right, forward and backward movement of the block body through the expansion and contraction of the air cylinders.

[0048] The fixing mechanism 5 includes a longitudinal connecting plate 25, a transverse pressing plate 26, and a plurality of longitudinal air cylinders connecting the pressing plate 26 and the connecting plate 25. The connecting plate is fixed to the moving mechanism 4, and the pressing plate is used to tightly press the fabric on the workbench 1. The lifting of the pressing plate 26 is realized through the expansion and contraction of the air cylinders.

[0049] The knife folding mechanism includes transverse air cylinders, plates, and longitudinal air cylinders, plates, which move forward and backward or up and down through the expansion and contraction of the air cylinders. The end of the knife folding mechanism is provided with foldable front and rear knives, left and right knives, which realize rotation and folding through the expansion and contraction of the air cylinders.

[0050] The steps of installing the clear line assembly 8 of the automatic bag opening machine are as follows:

[0051] Firstly, place the zipper. The positioning mechanism 23 is lowered so that the material blocking plate 24 is placed above the material plate 22. The zipper is placed on the material plate 22 along the contour of the material blocking plate 24, and then the positioning mechanism 23 is raised and withdrawn.

[0052] Secondly, place the fabric. The clear line assembly 8 is raised by the expansion and contraction of the air cylinders, and the fabric is placed above the pressing plate 26. The clear line assembly 8 is lowered to press the fabric.

[0053] Thirdly, open the bag. The laser cutting assembly 3 cuts the fabric to form a pocket.

[0054] Fourth step, fold the bag, the folding knife mechanism 7 is lowered, the front folding knife, the rear folding knife, the left folding knife and the right folding knife pass through the clear line assembly 8 into the cut pocket, and are turned to fold to form a bag lip, and are reset after folding is completed;

[0055] Fifth step, take the material plate, the fixing mechanism 5 is raised and moved to the material plate 22, and then is lowered to take away the material plate 22 on which the zipper is placed, and the fixing mechanism 5 is reset after taking the material; at the same time, the circulating feeding mechanism 6 sends out the material plate 22 to be placed on the workbench 1;

[0056] Sixth step, the sewing of the zipper and the pocket, the fixing mechanism 5 is moved to below the sewing machine to sew the pocket and the zipper;

[0057] Seventh step, the clear line assembly 8 is raised after the sewing is completed, and the fabric is manually taken away; the circulating feeding mechanism 6 is moved to the rear of the fixing mechanism 5 to take away the material plate 22.

[0058] The step of installing the hidden line assembly 9 of the automatic bag opening machine is as follows:

[0059] First step, place the fabric, the positioning mechanism 23 is lowered to make the material blocking plate 24 resist above the material plate 22, the fabric is placed flat and accurately on the material plate 22 along the contour of the material blocking plate 24, and then the positioning mechanism is raised and withdrawn;

[0060] Second step, take the material plate, the fixing mechanism 5 is raised and moved above the material plate 22, is lowered to take away the material plate 22 and is reset, and the fabric is clamped between the pressing plate 26 and the workbench 1; at the same time, the circulating feeding mechanism 6 sends out the material plate 22 to be placed on the workbench 1;

[0061] Third step, open the bag, the laser cutting assembly 3 cuts on the fabric to form a pocket;

[0062] Fourth step, fold the bag, the folding assembly 17 folds the fabric, the folding knife mechanism 7 is lowered, the front folding knife, the rear folding knife, the left folding knife and the right folding knife pass through the hidden line assembly 9 and the fixing mechanism 5, enter the cut pocket and are turned to fold to form a bag lip, and the folding knife mechanism 7 is reset after folding is completed;

[0063] Fifth step, place the zipper, the zipper is manually placed in the hidden line assembly 9;

[0064] Sixth step, the sewing of the zipper and the pocket, the fixing mechanism 5 lifts up the material plate 22 on which the fabric is placed and the hidden line assembly 9 on which the zipper is placed, and moves below the sewing machine to sew the pocket and the zipper, and is raised after the sewing is completed, and the worker manually takes out the completed fabric;

[0065] Seventh step, the hidden line assembly 9 is raised after the sewing is completed, and the fabric is manually taken away; the circulating feeding mechanism 6 is moved to the rear of the fixing mechanism 5 to take away the material plate 22.

[0066] It is apparent for a person skilled in the art that the present application is not restricted to the details of the above exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary only, and not limiting, the scope of the present application being defined by the appended claims rather than the above description, and all changes coming within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, no reference signs in the claims being regarded as limiting the claims concerned.

Claims

1. An automatic bag opening machine comprising a worktable on which a sewing machine and a laser cutting assembly for cutting a pocket are installed, characterized in that, It also includes a moving mechanism, at least two recycled material plates, a fixing mechanism, a folding knife mechanism and a recycling feeding mechanism. The moving mechanism can move forward, backward, left and right and is installed on the workbench. The material plate is used for placing zippers or fabrics, one of which is placed on the workbench and located at one side of the fixing mechanism, and the other is installed on the recycling feeding mechanism. The fixing mechanism is used for fixing the fabric and the zipper and is connected to the moving mechanism and can be lifted to take the material plate to the sewing machine. The folding knife mechanism can move forward, backward, up and down and is installed on the moving mechanism and is used for folding the cut pocket. The recycling feeding mechanism is used for feeding the material plate to the workbench and taking the finished material plate away.

2. An automatic bag opener according to claim 1, characterized in that The bright line assembly or the dark line assembly is detachably installed on the fixing mechanism.

3. An automatic bag opener according to claim 1, characterized in that The connecting block is provided on the bright line assembly or the dark line assembly, the fixing mechanism is provided with a connecting groove matched with the connecting block, the connecting block is buckled into the connecting groove and is fixed by a screw.

4. An automatic bag opener according to claim 3, characterized in that The bright line assembly includes a bright line inner pressing plate and a bright line outer pressing plate wrapped outside the bright line inner pressing plate, the bright line inner pressing plate and the bright line outer pressing plate are connected by the connecting block, and a gap between the bright line inner pressing plate and the bright line outer pressing plate forms a sewing groove.

5. The automatic bag opener of claim 1, wherein, The bottom of the bright line inner pressing plate is provided with a rack.

6. An automatic bag opener according to claim 5, characterized in that The dark line assembly includes a dark line pressing plate, a folding assembly fixed to the upper end of the dark line pressing plate and a positioning block in contact with the folding assembly, and the fabric to be sewn is folded by the folding assembly.

7. An automatic bag opener according to claim 6, characterized in that The folding assembly includes a plate body fixed to both ends, an L-shaped folding plate rotatably connected to the plate body and a gas cylinder installed on the plate body, the gas cylinder is extended and retracted to drive the folding plate to rotate and fold the fabric, the positioning block is abutted to the folding plate, and a sewing groove is formed between the two folding plates.

8. An automatic bag opener according to claim 1, characterized in that The bottom of the folding plate is provided with a rack-shaped anti-slip pattern.

9. An automatic bag opener according to claim 1, wherein The workbench is provided with a positioning mechanism located directly above the material plate; the positioning mechanism includes a horizontal gas cylinder, a vertical gas cylinder and a material blocking plate installed at the end, the horizontal gas cylinder is extended and retracted to realize left and right movement, and the vertical gas cylinder is extended and retracted to realize lifting.

10. The automatic bag opener of claim 1, wherein, The fixing mechanism includes a vertical connecting plate, a horizontal pressing plate and a plurality of vertical gas cylinders connected to the pressing plate and the connecting plate, the connecting plate is fixed to the moving mechanism and the lifting of the pressing plate is realized by the extension and retraction of the gas cylinder. The folding knife mechanism includes a horizontal gas cylinder, a plate block and a vertical gas cylinder, a plate block, which moves forward, backward, up and down by the extension and retraction of the gas cylinder; the end of the folding knife mechanism is provided with a foldable front folding knife, a rear folding knife, a left folding knife and a right folding knife, which are rotated and folded by the extension and retraction of the gas cylinder.