Automatic bag opener

Abstract

The utility model discloses an automatic bag opening machine, including work table, and install on the sewing machine of work table, laser cutting mechanism, the mobile mechanism that can move to the left and right in front and back, at least two material board of circulating feeding fabric, the fixed mechanism of connection in mobile mechanism, folding knife mechanism, positioning mechanism and circulating feeding mechanism are equipped with the open line subassembly on the fixed mechanism, and the open line subassembly bottom is equipped with rack and fabric limiting portion, and the fabric required sewing is clamped between the open line subassembly and fixed component, and through rack and fabric limiting portion carries out double limiting to fabric, and when working, it is more stable, prevents the vibration during sewing process to lead to the unneat of pocket sewing, makes the pocket more neat, beautiful of producing.

Description

Technical Field

[0001] This utility model relates to the field of mechanical technology, and in particular to an automatic bag opening machine. Background Technology

[0002] In garment manufacturing, pocket opening machines are essential auxiliary processing machinery, mainly used to create pockets in specific locations on garments, allowing users to place small items such as mobile phones, wallets, and keys. The processing of the pocket opening involves cutting, folding, shaping, and sewing the pocket opening area. Cutting involves cutting the pocket opening into the predetermined shape, folding involves folding the cut pocket opening inward to form a folded edge, shaping involves placing the pocket lip on the folded edge, and finally, sewing.

[0003] Sewing pockets requires placing fabric and a zipper onto a pocket opening machine. During the sewing process, the machine inevitably vibrates, so it's usually necessary to limit the fabric's movement to ensure stability. Common pocket opening machines on the market typically use a rack and pinion mechanism to compress the fabric. However, the rack and pinion have a small contact area, are uneven, and don't adhere tightly to the material board, potentially causing them to move around and fail to achieve proper limiting. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, this utility model provides an automatic bag opening machine. To solve the above-mentioned technical problems, this utility model provides the following technical solution.

[0005] An automatic bag-opening machine includes a worktable, a sewing machine mounted on the worktable, a laser cutting mechanism for cutting fabric, a moving mechanism that can move forward, backward, left, and right, at least two reusable material plates, a fixing mechanism, a folding knife mechanism, a circular feeding mechanism, and a positioning mechanism.

[0006] The material plate is used to place zippers or fabrics. One material plate is placed on the workbench and located on one side of the fixing mechanism, and the other material plate is installed on the circulating feeding mechanism.

[0007] The positioning mechanism can be moved to the material plate by a cylinder to assist in material feeding;

[0008] The fixing mechanism is vertically connected to the moving mechanism and is used to fix the fabric and zipper. The moving mechanism drives the fixing mechanism to move and remove the material board to the sewing machine for work.

[0009] The circulating feeding mechanism is movably installed behind the fixed mechanism by a cylinder, and is used to remove the material plate placed on the workbench or to remove the material plate that has completed its work on the fixed mechanism.

[0010] The folding knife mechanism is mounted on the moving mechanism and can move back and forth and up and down via a cylinder. It is used to fold the cut fabric to form a pocket.

[0011] The fixing mechanism is equipped with a liftable surface stitching component, and the fabric is clamped between the surface stitching component and the fixing mechanism. The bottom of the surface stitching component is equipped with a toothed rack and a fabric limiting part.

[0012] Furthermore, the fabric limiting part includes grooves located on both sides of the fixing mechanism and a silicone strip installed in the groove. The height of the silicone strip is greater than the height of the groove, and the silicone strip extends out of the groove and presses against the fabric.

[0013] Furthermore, the exposed wire assembly includes an inner pressure plate, an outer pressure plate wrapped around the outer edge of the inner pressure plate, and a lifting cylinder mounted on a fixing mechanism. The lifting cylinder drives the exposed wire assembly to move up and down.

[0014] Furthermore, the gap between the inner and outer pressure plates of the exposed thread forms an upper seam groove. A connecting plate is provided at the bottom of each of the inner and outer pressure plates of the exposed thread. The connecting plates on both sides extend into the upper seam groove, and a downwardly extending limiting plate is provided at the end of the connecting plate near the upper seam groove. The toothed rack is located at the end of the limiting plate. The groove is located on the limiting plate, and the silicone strip is attached to one side of the toothed rack and extends slightly below the toothed rack.

[0015] Furthermore, the fixing mechanism includes a longitudinal connecting plate and a transverse connecting plate, which are connected by a cylinder. The longitudinal connecting plate is mounted on the moving mechanism, and the cylinder extends and retracts to drive the transverse connecting plate to rise and fall. The fixing block is mounted on both sides of the longitudinal connecting plate.

[0016] Furthermore, the bottom of the fixing mechanism is provided with a pressure plate, which is deformed by a cylinder to limit the position of the zipper on the material plate. The bottom of the fixing mechanism is provided with an installation groove adapted to the pressure plate, and the pressure plate is installed in the installation groove. The pressure plate is provided with a lower seam groove, and the horizontal connecting plate is provided with a through hole. The upper seam groove, the through hole, and the lower seam groove are in the same longitudinal direction and their outlines correspond to each other.

[0017] Furthermore, the laser cutting mechanism includes a laser cutting tube installed above the sewing machine, a laser emitting tube and a laser refractor installed on the worktable. The laser cutting tube, the laser emitting tube and the laser refractor are at the same height. The laser emitting component emits laser light to the laser refractor, and then the laser refractor is transmitted to the laser cutting tube for cutting the fabric.

[0018] Furthermore, a support frame is provided on the workbench, and a moving mechanism is installed on the support frame; the moving mechanism includes a transverse slide rail, a cylinder and a slider installed on the support frame, and a longitudinal cylinder and a slider installed on the upper end of the slider, which can move left and right by extending and retracting the transverse cylinder, and move forward and backward by extending and retracting the longitudinal cylinder.

[0019] Furthermore, the folding knife mechanism includes a foldable front folding knife, a rear folding knife, a left folding knife, and a right folding knife, and the rotation and folding of the front folding knife, the rear folding knife, the left folding knife, and the right folding knife are realized by the extension and retraction of the cylinder.

[0020] Furthermore, the circulating feeding mechanism includes a support, a lead screw motor, a material plate gripper, and a cylinder. The circulating feeding mechanism moves laterally behind the fixed mechanism via the extension and retraction of the cylinder. The material plate gripper is installed on the support and moves back and forth via the lead screw motor to grip the material plate.

[0021] Compared with the prior art, the beneficial effects that this utility model can achieve are:

[0022] The bottom of the exposed stitching component of this utility model is provided with a toothed rack and a fabric limiting part. The fabric to be sewn is clamped between the exposed stitching component and the fixing component. The fabric is doubly limited by the toothed rack and the fabric limiting part to prevent vibration during the sewing process from causing the pocket to be uneven.

[0023] The fabric limiting part includes grooves located on both sides of the fixing mechanism and silicone strips installed in the grooves. The height of the silicone strips is greater than the height of the grooves. The silicone strips extend out of the grooves and press against the fabric. Traditionally, the fabric is pressed by a rack and pinion, but the rack and pinion have a small contact area and are uneven, resulting in poor adhesion to the material plate and preventing it from moving and achieving the limiting purpose. This design adds the use of silicone strips for pressing, which increases the contact area. The material properties of silicone strips also increase the friction, making the material plate less prone to shaking, resulting in greater stability during operation and producing more neat and aesthetically pleasing pockets. Attached Figure Description

[0024] Figure 1 The three-dimensional representation of this utility model Figure 1 .

[0025] Figure 2 The three-dimensional representation of this utility model Figure 2 .

[0026] Figure 3 The fixing mechanism of this utility model is three-dimensional. Figure 1 .

[0027] Figure 4 This is a perspective view of the exposed wire assembly of this utility model.

[0028] Figure 5 This is a perspective view of the positioning mechanism of this utility model.

[0029] Figure 6 The fixing mechanism of this utility model is three-dimensional. Figure 2 .

[0030] Figure 7 The three-dimensional representation of this utility model Figure 3 .

[0031] Figure 8 This is a perspective view of the circulating feeding mechanism of this utility model.

[0032] Reference numerals: 1. Workbench; 2. Sewing machine; 3. Laser cutting mechanism; 4. Moving mechanism; 5. Fixing mechanism; 6. Circulating feeding mechanism; 7. Folding knife mechanism; 8. Material plate; 9. Laser cutting tube; 10. Laser emitting tube; 11. Laser refraction plate; 12. Rack; 13. Fabric limiting part; 14. Groove; 15. Silicone strip; 16. Longitudinal connecting plate; 17. Transverse connecting plate; 18. Topstitching assembly; 19. Pressure plate; 20. Mounting groove; 21. Upper seam groove; 22. Lower seam groove; 23. Through hole; 24. Lifting cylinder; 25. Support frame; 26. Positioning mechanism; 27. Rotary cylinder; 28. Connecting plate; 29. ​​Material stop plate; 30. Support; 31. Screw motor; 32. Material plate gripper; 33. Inner pressure plate for topstitching; 34. Outer pressure plate for topstitching; 35. Connecting plate; 36. Limiting plate. Detailed Implementation

[0033] 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.

[0034] like Figure 1-8 As shown, an automatic bag opening machine includes a worktable 1, a sewing machine 2 mounted on the worktable 1, and a laser cutting mechanism 3 for cutting fabric to form a pocket. It also includes a moving mechanism 4, at least two circulating material plates 8, a fixing mechanism 5, a folding knife mechanism 7, a positioning mechanism 26, and a circulating feeding mechanism 6.

[0035] 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.

[0036] The material plate 8 is used to manually insert the zipper onto the material plate 8. One material plate 8 is placed on the workbench 1 and located on one side of the fixing mechanism 5, and the other material plate 8 is installed on the circulating feeding mechanism 6.

[0037] 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 5 to move back and forth and left and right. The fixing mechanism 5 moves up and down by extending and retracting the cylinder installed on itself. When working, the fabric is put on the fixing mechanism 5, the fixing mechanism 5 moves to one side to remove the material plate 8 with the zipper, and finally moves to the bottom of the sewing machine 2 to sew the fabric and zipper to form a pocket.

[0038] 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 through a cylinder and a guide rail, and can move back and forth and can be raised and lowered. It is used to fold the pockets cut on the fabric.

[0039] 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 8 that has been unloaded, the circulating feeding mechanism 6 moves forward and sends out another material plate 8 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 8, and so on in a cycle.

[0040] The fixing mechanism 5 is provided with a liftable surface stitching component 18. The fabric is clamped between the surface stitching component 18 and the fixing mechanism 5. The bottom of the surface stitching component 18 is provided with a rack 12 and a fabric limiting part 13. The fabric to be sewn is clamped between the surface stitching component 18 and the fixing component 5. The rack 12 and the fabric limiting part 13 provide double limiting for the fabric to prevent vibration during the sewing process from causing uneven pocket sewing.

[0041] The fabric limiting part 13 includes a groove 14 located on both sides of the fixing mechanism 5 and a silicone strip 15 installed in the groove 14. The height of the silicone strip 15 is greater than the height of the groove 14. The silicone strip 15 extends out of the groove 14 and presses against the fabric. The fabric is pressed by the silicone strip 15. Traditionally, the fabric is only pressed by the rack 12. The rack 12 has a small contact area and is uneven, so it does not fit tightly with the material plate 8, which makes it unable to achieve the purpose of limiting movement. This design adds the use of silicone strip 15 to press, which can increase the contact area. Its material properties will also increase the friction, so that the material plate 8 is not easy to shake, making it more stable during operation, and the produced pockets are more neat and beautiful.

[0042] The exposed stitching assembly 18 includes an inner exposed stitching pressure plate 33, an outer exposed stitching pressure plate 34 wrapped around the outer edge of the inner exposed stitching pressure plate 33, and a lifting cylinder 24 installed on the fixing mechanism 5. The lifting cylinder 24 drives the exposed stitching assembly 18 to move up and down to press or release the fabric.

[0043] The gap between the inner pressing plate 33 and the outer pressing plate 34 forms an upper seam groove 21. A connecting plate 35 is provided at the bottom of the inner pressing plate 33 and the outer pressing plate 34. The connecting plates 35 on both sides extend into the upper seam groove 21. A downwardly extending limiting plate 36 is provided at the end of the connecting plate 35 near the upper seam groove 21. The rack 12 is located at the end of the limiting plate 36. The groove 14 is located on the limiting plate 36. The silicone strip 15 is attached to one side of the rack 12 and extends slightly below the rack 12. When pressed down, the silicone strip 15 can press the fabric at the same time as the rack 12 through the deformation of its own material.

[0044] The fixing mechanism 5 includes a longitudinal connecting plate 16 and a transverse connecting plate 17. The longitudinal connecting plate 16 and the transverse connecting plate 17 are connected by multiple cylinders. The longitudinal connecting plate 16 is installed on the moving mechanism 4, and the transverse connecting plate 17 is raised and lowered by the extension and retraction of the cylinders.

[0045] The bottom of the fixing mechanism 5 has a pressure plate 19. The end of the pressure plate 19 is raised by a cylinder, and the front end of the pressure plate 19 rotates slightly downward to press down on the zipper placed on the material plate 8. This is used to press down the zipper and prevent it from shifting due to vibration during operation. The fixing mechanism 5 is provided with a mounting groove 20 that matches the outer contour of the pressure plate 19. The pressure plate 19 is installed in the mounting groove 20.

[0046] The pressure plate is provided with a lower seam groove 24 corresponding to the upper seam groove 20, and the horizontal connecting plate 17 is provided with a through hole 23. The upper seam groove 21, the through hole 23, and the lower seam groove 22 are in the same longitudinal direction and their outlines correspond. When sewing, the sewing machine 2 passes through the upper seam groove 21, the through hole 23, and the lower seam groove 22 to sew the zipper and the fabric.

[0047] The laser cutting mechanism 3 includes a laser cutting tube 9 mounted above the sewing machine 2, a laser emitting tube 10 mounted on the worktable 1, and a laser refractor 11. The laser emitting component 10 emits laser light to the laser refractor 11, and then the laser light is transmitted to the laser cutting tube 9 through the laser refractor 11 for cutting the fabric. In traditional designs, the laser emitting tube 10 is usually directly mounted on the worktable 1, and the laser light is transmitted to the laser cutting tube 9 located above it through multiple refractions. In this design, the laser emitting tube 9 is mounted above the support, raising the position of the laser emitting tube so that the laser cutting tube 9, the laser emitting tube 10, and the laser refractor 11 are at the same height. The laser light only needs to be refracted once to reach the laser cutting tube 9, effectively reducing energy loss and power consumption.

[0048] The workbench 1 is equipped with a support frame 25, which is located at the rear end of the fixed mechanism 5. The moving mechanism 4 is mounted on the support frame 25. The moving mechanism includes a transverse slide rail, a cylinder, and a slider mounted on the support frame 25, and a longitudinal cylinder and slider mounted on the upper end of the slider. It moves left and right by extending and retracting the transverse cylinder, and moves forward and backward by extending and retracting the longitudinal cylinder. The way the support frame 25 is mounted on the workbench 1 raises the moving mechanism 4, requiring the moving mechanism 4 to be designed higher, lowering the center of gravity, effectively reducing swaying during movement, and making it more stable.

[0049] The folding mechanism 7 includes a foldable front folding blade, a rear folding blade, a left folding blade, and a right folding blade. After the fabric is cut, the folding mechanism 7 is lowered by extending and retracting a cylinder. The extension and retraction of the cylinder then rotates and folds the front folding blade, the rear folding blade, the left folding blade, and the right folding blade. The left folding blade and the right folding blade fold the triangular cuts at both ends of the fabric to fold the single layer of fabric into a double layer. The front folding blade and the rear folding blade fold to form a bag lip.

[0050] The circulating feeding mechanism 6 includes a support 30, a lead screw motor 31, a material plate gripper 32, and a cylinder. The circulating feeding mechanism 6 extends laterally behind the fixed mechanism 5 via the cylinder. The material plate gripper 32 is mounted on the support 30 and moves back and forth via the lead screw motor to grip the material plate 8. Different sizes of material plates 8 are used for sewing pockets of different sizes. This design uses the lead screw motor 31 to control the back and forth movement of the material plate gripper 32, enabling more precise gripping of the material plate 8.

[0051] The positioning mechanism 26 includes a rotary cylinder 27 mounted on the workbench 1, a connecting plate 28 connected to the upper end of the rotary cylinder, a cylinder mounted at the end of the connecting plate 28, and a baffle plate 29 mounted at the end of the cylinder. The rotary cylinder 27 is located on one side of the material plate 8. By rotating, it moves the baffle plate 29 to directly above the material plate 8. Then, by extending and retracting the cylinder, it moves the baffle plate 29 into contact with the material plate 8 for positioning the material. This positioning mechanism 26 moves to directly above the material plate 8 by rotation, which is more stable than translation. The rotary cylinder 27 rotates to a certain angle and forms a jamming position, preventing further rotation. It also reduces the height and lowers the center of gravity, making it more stable during use.

[0052] The steps of the automatic bag-opening machine in this solution are as follows:

[0053] The first step is to place the fabric. The lifting cylinder 24 drives the exposed stitching assembly 18 to rise, placing the fabric above the fixing mechanism 5. The exposed stitching assembly 18 then descends to press down the fabric.

[0054] The second step is to open the bag. The moving mechanism 4 moves the fixing mechanism 5, which contains the fabric, to below the laser cutting mechanism 3. The laser cutting mechanism 3 cuts the fabric to form a pocket opening.

[0055] The third step is to fold the bag. The folding knife mechanism 7 descends, and the front folding knife, rear folding knife, left folding knife, and right folding knife pass through the topstitching assembly 18 and enter the cut pocket, folding the fabric cut to form the bag lip.

[0056] The fourth step is to place the zipper. The positioning mechanism 26 first rotates and then descends so that the baffle plate 29 is against the material plate 8. The zipper is placed flat and accurately on the material plate 8 along the outline of the baffle plate 29. Then the positioning mechanism 28 retracts.

[0057] Fifth step, take material plate 8. The circulating feeding mechanism 6 takes away the material plate 8 installed below the fixing mechanism 5. The fixing mechanism 5 rises and moves to the material plate 8. The fixing block 13 then descends to take away the material plate 8 with the zipper. After the fixing mechanism 5 completes the material taking, it resets. The circulating feeding mechanism 6 sends out another material plate 8 and places it on the workbench 1.

[0058] Step 6: Sew the zipper and fabric together. The fixing mechanism 5 moves below the sewing machine 2 to sew the fabric and zipper together. After sewing is completed, it rises up, the fabric is manually removed, and the circulating feeding mechanism 6 moves behind the fixing mechanism 5 to remove the material plate 8.

[0059] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An automatic bag-opening machine, characterized in that, Includes a worktable, a sewing machine mounted on the worktable, a laser cutting mechanism for cutting fabric, a moving mechanism that can move forward, backward, left, and right, at least two reusable material plates, a fixing mechanism, a folding knife mechanism, a circular feeding mechanism, and a positioning mechanism: The material plate is used to place zippers or fabrics. One material plate is placed on the workbench and located on one side of the fixing mechanism, and the other material plate is installed on the circulating feeding mechanism. The positioning mechanism can be moved to the material plate by a cylinder to assist in material feeding; The fixing mechanism is vertically connected to the moving mechanism and is used to fix the fabric and zipper. The moving mechanism drives the fixing mechanism to move and remove the material board to the sewing machine for work. The circulating feeding mechanism is movably installed behind the fixed mechanism by a cylinder, and is used to remove the material plate placed on the workbench or to remove the material plate that has completed its work on the fixed mechanism. The folding knife mechanism is mounted on the moving mechanism and can move back and forth and up and down via a cylinder. It is used to fold the cut fabric to form a pocket. The fixing mechanism is equipped with a liftable surface stitching component, and the fabric is clamped between the surface stitching component and the fixing mechanism. The bottom of the surface stitching component is equipped with a toothed rack and a fabric limiting part.

2. The automatic bag-opening machine according to claim 1, characterized in that, The fabric limiting part includes grooves located on both sides of the fixing mechanism and silicone strips installed in the grooves. The height of the silicone strips is greater than the height of the grooves, and the silicone strips extend out of the grooves and press against the fabric.

3. An automatic bag-opening machine according to claim 2, characterized in that, The exposed wire assembly includes an inner pressure plate, an outer pressure plate wrapped around the outer edge of the inner pressure plate, and a lifting cylinder mounted on a fixed mechanism. The lifting cylinder drives the exposed wire assembly to move up and down.

4. An automatic bag-opening machine according to claim 3, characterized in that, The gap between the inner and outer pressure plates of the exposed thread forms an upper seam groove. A connecting plate is provided at the bottom of each of the inner and outer pressure plates of the exposed thread. The connecting plates on both sides extend into the upper seam groove, and a downwardly extending limiting plate is provided at the end of the connecting plate near the upper seam groove. The toothed rack is located at the end of the limiting plate. The groove is located on the limiting plate, and the silicone strip is attached to one side of the toothed rack and extends slightly below the toothed rack.

5. An automatic bag-opening machine according to claim 4, characterized in that, The fixing mechanism includes a longitudinal connecting plate and a transverse connecting plate. The longitudinal connecting plate and the transverse connecting plate are connected by a cylinder. The longitudinal connecting plate is installed on the moving mechanism. The cylinder extends and retracts to drive the transverse connecting plate to rise and fall.

6. An automatic bag-opening machine according to claim 5, characterized in that, The fixing mechanism has a pressure plate at the bottom. The pressure plate is deformed by a cylinder to limit the position of the zipper on the material plate. The fixing mechanism has an installation groove at the bottom that is adapted to the pressure plate. The pressure plate is installed in the installation groove. The pressure plate has a lower seam groove. The horizontal connecting plate has a through hole. The upper seam groove, the through hole, and the lower seam groove are in the same longitudinal direction and their outlines correspond.

7. An automatic bag-opening machine according to claim 1, characterized in that, The laser cutting mechanism includes a laser cutting tube installed above the sewing machine, a laser emitting tube and a laser refractor installed on the worktable. The laser cutting tube, the laser emitting tube and the laser refractor are at the same height. The laser emitting component emits laser light to the laser refractor, and then the laser refractor is used to deliver the laser light to the laser cutting tube for cutting the fabric.

8. An automatic bag-opening machine according to claim 1, characterized in that, The workbench is equipped with a support frame, and the moving mechanism is mounted on the support frame. The moving mechanism includes a horizontal slide rail, a cylinder, and a slider mounted on the support frame, as well as a vertical cylinder and slider mounted on the upper end of the slider. The horizontal cylinder extends and retracts to move left and right, and the vertical cylinder extends and retracts to move forward and backward.

9. An automatic bag-opening machine according to claim 1, characterized in that, The folding knife mechanism includes a foldable front folding knife, a rear folding knife, a left folding knife, and a right folding knife. The rotation and folding of the front folding knife, the rear folding knife, the left folding knife, and the right folding knife are achieved by the extension and retraction of the cylinder.

10. An automatic bag-opening machine according to claim 1, characterized in that, The circulating feeding mechanism includes a support, a lead screw motor, a material plate gripper, and a cylinder. The circulating feeding mechanism moves laterally behind the fixed mechanism via the extension and retraction of the cylinder. The material plate gripper is installed on the support and moves back and forth via the lead screw motor to grip the material plate.

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