Novel material folding mechanism of laser bag opening machine

By setting two sets of front and rear inserting blades and left and right folding plates on the laser bag opening machine, combined with the folding drive assembly, the problems of substrate space and stability are solved, and the variety and versatility of bag manufacturing are improved.

CN224133335UActive Publication Date: 2026-04-17ZHEJIANG ZOJE SEWING MACHINE
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG ZOJE SEWING MACHINE
Filing Date
2025-04-23
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

Existing laser bag opening machines have substrates with multiple sets of stationary and pulling blades, resulting in large installation space and uneven weight distribution, which affects substrate stability and limits bag sizes.

Method used

The new folding mechanism of the laser bag opening machine is equipped with two sets of front and rear inserts and left and right folding plates. The movement is driven by the folding drive component, which reduces the installation space requirement of the substrate. The position and height of the lifting frame can be adjusted by adjusting the module to improve the stability of the substrate and the pocket size.

Benefits of technology

It saves substrate mounting space, improves the versatility of pocket manufacturing models, reduces substrate sagging and deformation at the far end, and enhances performance.

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Abstract

The utility model provides a novel material folding mechanism of a laser bag opening machine, which comprises an adjusting module, a lifting frame, a front slotting tool, a rear slotting tool, a left material folding plate, a right material folding plate, slotting tool cylinders and a material folding driving assembly, the adjusting module is used for adjusting the longitudinal position and height of the lifting frame, the two slotting tool cylinders are arranged on the lifting frame, and the left material folding plate and the right material folding plate are arranged on the lifting frame. The two sets of material folding driving assemblies are arranged on the lifting frame and used for driving the two sets of left and right material folding plates to achieve transverse and vertical displacement. By arranging the left material folding plate and the right material folding plate and driving the left material folding plate and the right material folding plate to move through the material folding driving assembly, the problem of bag folding on the left side and the right side through two sets of material fixing cutters and material pulling cutters is solved, only the two sets of material fixing cutters and the material pulling cutters are arranged, the installation space of the base plate can be saved, and meanwhile the sizes of a through groove, the material fixing cutters and the material pulling cutters on the base plate can be enlarged; the model of pocket manufacturing is improved, and the universality is higher.
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Description

Technical Field

[0001] This utility model relates to the field of garment processing technology, specifically a novel folding mechanism for a laser 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 for carrying small items such as mobile phones and wallets. The conventional approach is to process the pocket opening and lip separately first, and then sew the lip onto the opening to complete the pocket opening.

[0003] The bag opening process involves cutting, folding, shaping, and sewing the bag opening. Cutting involves making two "Y"-shaped or "I"-shaped slits at the bag opening. Folding involves folding the cut bag opening inward to form a folded edge. Shaping involves placing the bag lip on the folded edge. Finally, the bag is sewn together.

[0004] However, current pressing frames have four sets of stationary and pull cutters. For example, in an automated true pocket manufacturing machine with Chinese patent publication number CN221167014U, the four sets of stationary and pull cutters require four sets of cylinders and connecting rods, which requires a large installation space on the substrate. This results in the only size of the through slot being compressed on a substrate of the same size, thus limiting the size of the pocket models that can be manufactured. Secondly, setting more sets of stationary and pull cutters increases the weight of the substrate away from the bearing end, causing the far end of the substrate without a support point to sink and deform. Since the substrate will move and contact the worktable during use, the sinking substrate will seriously affect its use.

[0005] Therefore, setting up two sets of stationary and pull cutters became the key to solving the above problems. However, after setting up two sets of front and rear stationary and pull cutters, the problem of material folding in the pockets on the left and right sides became the problem that needed to be solved in this case. Based on this, this case was born. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] To address the shortcomings of existing technologies, this utility model provides a novel folding mechanism for a laser bag opening machine, which solves the problems mentioned in the background section.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, this utility model is implemented through the following technical solution: a novel folding mechanism for a laser bag opening machine, which is installed on the laser bag opening machine. The laser bag opening machine includes a frame with a worktable, and a laser cutting mechanism, a sewing mechanism, and a folding mechanism are installed on the frame corresponding to the worktable. The laser bag opening machine also includes a base plate that moves laterally between each workstation. The folding mechanism includes an adjustment module, a lifting frame, two sets of front and rear insert blades, left and right folding plates, insert blade cylinders, and folding drive components. The adjustment module is used to adjust the longitudinal position and height of the lifting frame. The two sets of insert blade cylinders are installed on the lifting frame and are used to drive the two sets of front and rear insert blades to rise and fall respectively. The two sets of folding drive components are installed on the lifting frame and are used to drive the two sets of left and right folding plates to achieve lateral and vertical displacement respectively.

[0010] Preferably, the left and right folding plates include a vertical section, a bent section, and a horizontal section connected in sequence.

[0011] Preferably, the material folding drive assembly includes a horizontal moving cylinder, a horizontal moving plate, and a vertical moving cylinder. The horizontal moving cylinder is horizontally mounted on the lifting frame and its output end is connected to the horizontal moving plate. The vertical moving cylinder is vertically mounted on the horizontal moving plate and its output end is connected to the vertical section.

[0012] Preferably, the adjustment module includes a backpack frame, a first cylinder, a longitudinal shift frame, and a second cylinder. The first cylinder is longitudinally mounted on the backpack frame and its output end is connected to the longitudinal shift frame. The second cylinder is vertically mounted on the longitudinal shift frame and its output end is connected to the lifting frame.

[0013] Preferably, the substrate is provided with a pressing frame assembly, a material fixing assembly, and a material pulling assembly. The substrate has a through groove for opening the bag. The material fixing assembly includes an outer material fixing knife, an inner material fixing knife, and two sets of material fixing driving components. The outer material fixing knife is C-shaped. The two sets of material fixing driving components are used to drive the outer material fixing knife and the inner material fixing knife to move axially towards the front and rear sides of the through groove. The material pulling assembly includes an outer material pulling knife, an inner material pulling knife, and two sets of material pulling driving components. The two sets of material pulling driving components are used to drive the outer material pulling knife and the inner material pulling knife to move axially towards the front and rear sides of the through groove.

[0014] Preferably, the substrate is further provided with a pressing assembly, which includes a plastic plate, a bracket, and a driving cylinder. The plastic plate is disposed at the bottom of the substrate, and one edge of the plastic plate is fixed to the substrate. The bracket is fixed to the substrate. The cylinder seat of the driving cylinder is movably connected to the bracket. The output end of the driving cylinder is connected to the side of the plastic plate away from the substrate. The plastic plate is provided with a pocket groove corresponding to the through groove.

[0015] (III) Beneficial Effects

[0016] This utility model provides a novel folding mechanism for a laser bag opening machine. It has the following beneficial effects:

[0017] 1. The new folding mechanism of this laser bag opening machine solves the problem of folding bags on both sides by setting two left and right folding plates and driving their movement through a folding drive component. By setting only two sets of fixed and pulling blades, the installation space of the base plate can be saved. At the same time, the size of the through slots on the base plate and the fixed and pulling blades can be increased, improving the variety of bag manufacturing models and making it more versatile. Attached Figure Description

[0018] Figure 1 This is an isometric structural diagram of the material bending mechanism of this utility model;

[0019] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 3 This is a front view of the material folding mechanism of this utility model;

[0021] Figure 4 This is an isometric view of the substrate of this utility model;

[0022] Figure 5 This is a schematic diagram of the pressure frame assembly structure of this utility model;

[0023] Figure 6 This is a schematic diagram of the material feeding assembly structure of this utility model;

[0024] Figure 7 This is a schematic diagram of the material pulling assembly structure of this utility model;

[0025] Figure 8 This is a schematic diagram of the plastic board bonding substrate of this utility model;

[0026] Figure 9 This is a schematic diagram of the plastic sheet of this utility model in the pushed-open state.

[0027] In the diagram: 1. Base plate; 2. Pressing frame assembly; 3. Through groove; 21. Pressing frame platform; 22. Pressing strip platform; 23. Outer pressing frame; 24. Outer pressing strip; 25. Inner pressing strip; 26. Pressing strip cylinder; 27. Guide rail one; 28. Tension spring; 29. ​​Guide rail two; 4. Material fixing assembly; 5. Material pulling assembly; 41. Outer material fixing knife; 42. Inner material fixing knife; 43. Material fixing knife cylinder; 44. Material fixing connecting rod; 51. Outer material pulling knife; 52. Inner material pulling knife; 53. Material pulling cylinder; 54. Material pulling connecting rod; 55. Guide plate; 56. Guide groove; 57. Sliding shaft; 6. Pressing material. Components, 61 Plastic board, 62 Bracket, 63 Drive cylinder, 64 Drive block, 65 Pocket slot, 7 Folding mechanism, 8 Laser cutting mechanism, 9 Sewing mechanism, 10 Frame, 11 Workbench, 71 Backpack frame, 72 Cylinder 1, 73 Vertical shift frame, 74 Cylinder 2, 75 Lifting frame, 76 Front and rear inserting knives, 77 Left and right folding plates, 78 Inserting knife cylinder, 79 Folding drive assembly, 771 Vertical section, 772 Bending section, 773 Horizontal section, 791 Horizontal shifting cylinder, 792 Horizontal shifting plate, 793 Vertical shifting cylinder. Detailed Implementation

[0028] This utility model embodiment provides a novel folding mechanism for a laser bag opening machine, such as... Figure 1-9 As shown, a laser bag-opening machine is installed, comprising a frame 10 with a worktable 11. A laser cutting mechanism 8, a sewing mechanism 9, and a folding mechanism 7 are mounted on the frame 10 corresponding to the worktable 11. The laser bag-opening machine also includes a base plate 1 that moves laterally between the workstations. A base plate moving mechanism for moving the base plate 1 and a cutting tool moving mechanism for moving the folding mechanism 7 are mounted on the frame. This is prior art; for the structure of the bag-opening machine, please refer to an automatic bag-opening machine with publication number CN220724510U.

[0029] The substrate 1 is provided with a pressing frame assembly 2, a material fixing assembly 4, and a material pulling assembly 5. The material fixing assembly 4 and the material pulling assembly 5 are arranged vertically in a front view, and the two mechanisms do not interfere with each other during planar operation. The material fixing assembly 4 is located above the material pulling assembly 5. A rectangular through-slot 3 for opening bags is formed on the substrate 1. The blades on the material fixing assembly 4 and the material pulling assembly 5 correspond to the front and rear sides of the through-slot 3.

[0030] like Figure 6As shown, the material positioning assembly 4 includes an outer material positioning blade 41, an inner material positioning blade 42, and two sets of material positioning drive components. The outer material positioning blade 41 is C-shaped, and the outer material positioning blade 41 and the inner material positioning blade 42 correspond to the front and rear sides of the through groove 3. After the outer material positioning blade 41 and the inner material positioning blade 42 are combined, a rectangular groove is formed in the middle. The length of the rectangular groove is the width of the largest "Y" shaped cut. The two sets of material positioning drive components are used to drive the outer material positioning blade 41 and the inner material positioning blade 42 to move axially towards the front and rear sides of the through groove 3. The material positioning drive component includes a material positioning driver and a material positioning connecting rod 44. The material positioning driver can be a material positioning blade cylinder 43 or other modules that can realize linear drive function, such as a lead screw and slide rail module. The material positioning driver is mounted on the base plate 1 and is connected to the outer material positioning blade 41 or the inner material positioning blade 42 through the material positioning connecting rod 44. Multiple material fixing rods 44 can be provided. In this embodiment, each group has two material fixing rods 44. The two material fixing rods 44 are arranged at right angles and connected end to end. The base plate 1 is provided with a guide groove for the axial displacement of the material fixing rods 44.

[0031] like Figure 7 As shown, the material pulling assembly 5 includes an outer material pulling blade 51, an inner material pulling blade 52, and two sets of material pulling drive components. The outer material pulling blade 51 and the inner material pulling blade 52 have slots for inserting cutting tools. The two sets of material pulling drive components drive the outer material pulling blade 51 and the inner material pulling blade 52 to move axially towards the front and rear sides of the through groove 3. The material pulling drive component includes a material pulling driver and a material pulling connecting rod 54. The material pulling driver can be a material pulling cylinder 53, or other modules capable of linear drive, such as a lead screw and slide rail module. The material pulling cylinder 53 is mounted on the base plate 1 and connected to the outer material pulling blade 51 or the inner material pulling blade 52 via the material pulling connecting rod 54. The material pulling drive component for driving the outer material pulling blade 51 can be equipped with two material pulling cylinders 53, which are respectively mounted on both sides of the outer material pulling blade 51. The output ends of the two material pulling cylinders 53 are respectively connected to the two ends of the outer material pulling blade 51 via the material pulling connecting rod 54.

[0032] The outer pull blade 51 and the inner pull blade 52 are provided with guide plates 55 at their tails. A guide groove 56 is axially opened on the guide plate 55. A sliding shaft 57 that can slide in the guide groove 56 is fixed on the base plate 1. The pull drive is connected to the guide plate 55 through the pull connecting rod 54.

[0033] To reduce the weight at the far end of the substrate 1, the stationary blade cylinder 43 and the pull blade cylinder 53 are positioned at the end of the substrate 1 near the substrate moving mechanism and arranged axially. In addition, the elimination of two sets of stationary blades and pull blades makes the weight of the substrate 1 away from the bearing end smaller, and the far end of the substrate is less likely to sink and deform, thus improving the performance of the substrate.

[0034] like Figure 4-5As shown, the pressure frame assembly 2 includes a pressure frame platform 21, a pressure strip platform 22, an outer pressure frame 23, an outer pressure strip 24, an inner pressure strip 25, a pressure strip cylinder 26, and a tension spring 28. A second guide rail 29 is vertically arranged on the base plate 1. The pressure frame platform 21 is slidably fitted onto the second guide rail 29 via a slider. The base plate 1 is equipped with a driver for driving the pressure frame platform 21 to rise and fall. The driver can be a cylinder, a lead screw and slide rail module, or other modules that achieve linear movement. To improve the stability of the pressure strip platform 22 during rising and falling, a first guide rail 27 is provided on the pressure frame platform 21. The pressure strip platform 22 is slidably fitted onto the first guide rail 27 via a slider. The outer pressure frame 23 is disposed on the pressure frame platform 21. The pressure strip cylinder 26 is disposed on the pressure strip platform 22 and is used to drive the inner pressure strip 25 to rise and fall. The outer pressure strip 24 is disposed at the bottom of the outer pressure frame 23 and corresponds to the inner pressure strip 25 front and back.

[0035] The pressing plate 22 and the pressing frame plate 21 are connected by a tension spring 28. The tension spring 28 is a sleeve containing a spring. A through hole is provided on the pressing plate 22, and the sleeve is fixedly fitted over the through hole. The spring inside passes through the through hole and is connected to the pressing frame plate 21. The tension spring 28 is used to provide tension to the pressing plate 22, enabling it to press the fabric tightly.

[0036] The outer pressure strip 24 and the inner pressure strip 25 are located above the through groove 3. The outer pressure strip 24 is used to fix one side of the front of the bag, and the inner pressure strip 25 is used to fix one side of the back of the bag.

[0037] like Figure 8-9 As shown, a pressing assembly 6 is also provided on the substrate 1. The pressing assembly 6 includes a plastic plate 61, a support 62, and a driving cylinder 63. The plastic plate 61 is located at the bottom of the substrate 1, and one edge of it is fixed to the substrate 1. The plastic plate 61 can be made of manganese steel plate or other materials with strong plasticity and not easy to break. The support 62 is fixed to the substrate 1, and the cylinder seat of the driving cylinder 63 is movably connected to the support 62. The output end of the driving cylinder 63 is connected to the side of the plastic plate 61 away from the substrate 1. A pocket groove 65 corresponding to the through groove 3 is formed on the plastic plate 61. The size of the pocket groove 65 is larger than the pocket sewing area.

[0038] The material folding mechanism 7 includes an adjustment module, a lifting frame 75, two sets of front and rear inserting blades 76, left and right folding plates 77, inserting blade cylinders 78, and a folding drive assembly 79.

[0039] like Figure 1As shown, the adjustment module is used to adjust the longitudinal position and height of the lifting frame 75. The adjustment module includes a backpack frame 71, cylinder 1 72, a longitudinal shift frame 73, and cylinder 2 74. Cylinder 1 72 is longitudinally mounted on the backpack frame 71, and its output end is connected to the longitudinal shift frame 73. Cylinder 2 74 is vertically mounted on the longitudinal shift frame 73, and its output end is connected to the lifting frame 75. Cylinder 1 72 and cylinder 2 74 can also be replaced by electric push rods or other modules that achieve linear motion.

[0040] Two sets of inserting cylinders 78 are mounted on the lifting frame 75 and are used to drive the two sets of front and rear inserting blades 76 to rise and fall respectively. The two front and rear inserting blades 76 correspond vertically to the slots on the outer pulling blade 51 and the inner pulling blade 52 respectively, and can be inserted into the slots.

[0041] Two sets of folding drive assemblies 79 are mounted on the lifting frame 75 and are used to drive two sets of left and right folding plates 77 to achieve lateral and vertical displacement, respectively. The two sets of left and right folding plates 77 are located on both sides of the two sets of front and rear inserting blades 76. The folding drive assembly 79 includes a horizontal movement cylinder 791, a horizontal movement plate 792, and a vertical movement cylinder 793. A guide rail is horizontally mounted on the lifting frame 75, and a slider that can slide and fit on the guide rail is mounted on the horizontal movement plate 792. The horizontal movement cylinder 791 is horizontally mounted on the lifting frame 75, and its output end is connected to the slider on the horizontal movement plate 792. The vertical movement cylinder 793 is vertically mounted on the horizontal movement plate 792, and its output end is connected to the vertical section 771.

[0042] like Figure 3 As shown, the left and right folding plates 77 include a vertical section 771, a bent section 772, and a horizontal section 773 connected in sequence. The bent section 772 bends inward toward the front and rear inserts 76 and then extends vertically downward.

[0043] Working principle: Before pulling the material, the plastic plate 61 is pushed down to create a gap between it and the base plate 1 for pulling. Then, the front and rear insert blades 76 of the folding mechanism 7 insert the cut pocket fabric into the outer pulling blade and the inner pulling blade 52. Next, the outer pulling blade and the inner pulling blade 52 pull the fabric on both sides outward and shape it on the outer fixing blade 41 and the inner fixing blade 42. Immediately afterward, the vertical moving cylinder 793 drives the left and right folding plates 77 to descend. The horizontal section 773 presses down on the left and right sides of the pocket fabric for a certain distance. Then, the horizontal moving cylinder 791 drives the left and right folding plates 77 to move laterally outward, so that the end of the horizontal section 773 presses down on the left and right sides of the fabric and folds it. Finally, after the folding mechanism 7 is reset, the plastic plate 61 resets and presses down the four edges of the folded pocket.

[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A novel folding mechanism for a laser bag opening machine, wherein the laser bag opening machine includes a frame (10) with a worktable (11), and a laser cutting mechanism (8), a sewing mechanism (9), and a folding mechanism (7) are provided on the frame (10) corresponding to the worktable (11). The laser bag opening machine also includes a base plate (1) that moves laterally between each workstation. The mechanism is characterized by: The folding mechanism (7) includes an adjustment module, a lifting frame (75), two sets of front and rear insert blades (76), left and right folding plates (77), insert blade cylinders (78), and folding drive components (79). The adjustment module is used to adjust the longitudinal position and height of the lifting frame (75). The two sets of insert blade cylinders (78) are mounted on the lifting frame (75) and are used to drive the two sets of front and rear insert blades (76) to rise and fall respectively. The two sets of folding drive components (79) are mounted on the lifting frame (75) and are used to drive the two sets of left and right folding plates (77) to achieve lateral and vertical displacement respectively.

2. A novel folding mechanism for a laser bag opener as claimed in claim 1, wherein: The material folding drive assembly (79) includes a horizontal moving cylinder (791), a horizontal moving plate (792), and a vertical moving cylinder (793). The horizontal moving cylinder (791) is horizontally arranged on the lifting frame (75), and its output end is connected to the horizontal moving plate (792). The vertical moving cylinder (793) is vertically arranged on the horizontal moving plate (792), and its output end is connected to the left and right folding plates (77).

3. A novel folding mechanism for a laser bag opener as claimed in claim 1, wherein: The adjustment module includes a backpack frame (71), cylinder one (72), a longitudinal shift frame (73), and cylinder two (74). Cylinder one (72) is longitudinally mounted on the backpack frame (71) and its output end is connected to the longitudinal shift frame (73). Cylinder two (74) is vertically mounted on the longitudinal shift frame (73) and its output end is connected to the lifting frame (75).

4. A novel folding mechanism for a laser bag opener as claimed in claim 1, wherein: The substrate (1) is provided with a pressing frame assembly (2), a material fixing assembly (4) and a material pulling assembly (5). The substrate (1) is provided with a through groove (3) for opening the bag. The material fixing assembly (4) includes an outer material fixing knife (41), an inner material fixing knife (42) and two sets of material fixing driving components. The outer material fixing knife (41) is U-shaped. The two sets of material fixing driving components are used to drive the outer material fixing knife (41) and the inner material fixing knife (42) to move axially towards the front and rear sides of the through groove (3). The material pulling assembly (5) includes an outer material pulling knife (51), an inner material pulling knife (52) and two sets of material pulling driving components. The two sets of material pulling driving components are used to drive the outer material pulling knife (51) and the inner material pulling knife (52) to move axially towards the front and rear sides of the through groove (3).

5. A novel folding mechanism for a laser bag opener as claimed in claim 4, wherein: The substrate (1) is also provided with a pressing assembly (6), which includes a plastic plate (61), a bracket (62), and a driving cylinder (63). The plastic plate (61) is located at the bottom of the substrate (1) and one side edge of the plastic plate is fixed to the substrate (1). The bracket (62) is fixed to the substrate (1). The cylinder seat of the driving cylinder (63) is movably connected to the bracket (62). The output end of the driving cylinder (63) is connected to the side of the plastic plate (61) away from the substrate (1). The plastic plate (61) is provided with a pocket groove (65) corresponding to the through groove (3).

Citation Information

Patent Citations

  • Automatic bag opening machine

    CN220724510U

  • Automatic real pocket manufacturing machine

    CN221167014U