Novel outer pressing frame assembly of laser bag opening machine
By adopting a new type of external pressure frame assembly in the laser bag opening machine, only two sets of fixed material blades and pulling material blades are set up and arranged near the moving mechanism of the substrate, the problems of limited substrate space and uneven weight are solved, and larger-sized bags can be manufactured and used stably.
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
Existing frame pressing assemblies occupy a large space due to the multiple sets of fixed and pulled cutting blades, which restricts the substrate installation space and causes uneven weight distribution, leading to substrate sinking and deformation, thus affecting the performance.
The new external pressure frame assembly of the laser bag opening machine is equipped with only two sets of stationary blades and pull blades. The stationary blade and pull blade cylinders are arranged at the end of the substrate near the moving mechanism, and are axially arranged to reduce the weight of the far end of the substrate. Stable movement is achieved through guide grooves and guide rails.
It saves substrate mounting space, improves the versatility of pocket manufacturing models, reduces substrate sagging and deformation at the far end, and enhances stability and efficiency in use.
Smart Images

Figure CN224133336U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of garment processing technology, specifically to a novel outer pressure frame assembly 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. Utility Model Content
[0005] (a) Technical problems to be solved
[0006] To address the shortcomings of existing technologies, this utility model provides a novel external pressure frame assembly for a laser bag opening machine, which solves the problems mentioned in the background section.
[0007] (II) Technical Solution
[0008] To achieve the above objectives, this utility model provides the following technical solution: a novel external pressure frame assembly for a laser bag-opening machine. The novel external pressure frame assembly is a component that moves laterally between various workstations on the worktable of the bag-opening machine. The novel external pressure frame assembly includes a base plate, a pressure frame assembly, a material-fixing assembly, and a material-pulling assembly. A through-slot for bag opening is provided on the base plate. The material-fixing assembly includes an outer material-fixing blade, an inner material-fixing blade, and two sets of material-fixing drive components. The outer material-fixing blade is U-shaped. The two sets of material-fixing drive components drive the outer and inner material-fixing blades to move axially towards the front and rear sides of the through-slot. The material-pulling assembly includes an outer material-pulling blade, an inner material-pulling blade, and two sets of material-pulling drive components. The two sets of material-pulling drive components drive the outer and inner material-pulling blades to move axially towards the front and rear sides of the through-slot.
[0009] Preferably, the pressing frame assembly includes a pressing frame platform, a pressing strip platform, an outer pressing frame, an outer pressing strip, an inner pressing strip, a pressing strip cylinder, and a tension spring. A second guide rail is vertically arranged on the base plate. The pressing frame platform is slidably adapted to the second guide rail by a slider. A driver for driving the pressing frame platform to rise and fall is provided on the base plate. A first guide rail is provided on the pressing frame platform. The pressing strip platform is slidably adapted to the first guide rail by a slider. The outer pressing frame is arranged on the pressing frame platform. The pressing strip cylinder is arranged on the pressing strip platform and is used to drive the inner pressing strip to rise and fall. The outer pressing strip is arranged at the bottom of the outer pressing frame and corresponds to the inner pressing strip front and back.
[0010] Preferably, the pressure strip plate and the pressure frame plate are connected by a tension spring.
[0011] 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.
[0012] Preferably, the material-fixing drive component includes a material-fixing driver and a material-fixing connecting rod. The material-fixing driver is disposed on the substrate and is connected to the outer material-fixing blade or the inner material-fixing blade through the material-fixing connecting rod.
[0013] Preferably, the material pulling drive component includes a material pulling driver and a material pulling link. The material pulling driver is disposed on the substrate and is connected to the outer material pulling knife or the inner material pulling knife through the material pulling link.
[0014] Preferably, the outer and inner pull blades are provided with guide plates at their tails, and the guide plates are provided with guide grooves axially. A sliding shaft that can slide in the guide groove is fixed on the base plate, and the pull drive is connected to the guide plate through a pull linkage.
[0015] (III) Beneficial Effects
[0016] This utility model provides a novel outer pressure frame assembly for a laser bag opening machine. It has the following beneficial effects:
[0017] 1. The new type of external pressure frame assembly of the laser bag opening machine only has two sets of fixed material blades and pulling material blades, which can save the installation space of the substrate. At the same time, the size of the through groove and fixed material blades and pulling material blades on the substrate can be increased, improving the model of bag manufacturing and making it more versatile.
[0018] 2. The new type of external pressure frame assembly of the laser bag opening machine sets the fixed material knife cylinder and the pulling material cylinder at one end of the substrate near the substrate moving mechanism and arranges them axially. In addition, the elimination of two sets of fixed material knives and pulling material knives makes the weight of the substrate far from the bearing end smaller, and the far end of the substrate is not easy to sink and deform, thus improving the use effect of the substrate. Attached Figure Description
[0019] Figure 1 This is an isometric view of the substrate of this utility model;
[0020] Figure 2 This is a schematic diagram of the pressure frame assembly structure of this utility model;
[0021] Figure 3 This is a schematic diagram of the material feeding assembly structure of this utility model;
[0022] Figure 4 This is a schematic diagram of the material pulling assembly structure of this utility model;
[0023] Figure 5 This is a schematic diagram of the plastic board bonding substrate of this utility model;
[0024] Figure 6 This is a schematic diagram of the plastic sheet of this utility model in the pushed-open state.
[0025] 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 assembly, 61. Plastic board, 62. Bracket, 63. Drive cylinder, 64. Drive block, 65. Pocket groove. Detailed Implementation
[0026] This utility model embodiment provides a novel external pressure frame assembly for a laser bag opening machine, such as... Figure 1-6As shown, the novel outer pressure frame assembly is a component that moves laterally between various workstations on the worktable of the bag opening machine. The bag opening machine is equipped with a laser cutting mechanism, a sewing mechanism, and a knife insertion mechanism corresponding to the worktable. The frame is equipped with a base plate moving mechanism for moving the novel outer pressure frame assembly and a knife insertion moving mechanism for moving the knife insertion mechanism. The above is prior art; for the structure of the bag opening machine, please refer to an automatic bag opening machine with publication number CN220724510U.
[0027] The novel external pressure frame assembly includes a base plate 1, a pressure frame assembly 2, a material-fixing assembly 4, and a material-pushing assembly 5. The material-fixing assembly 4 and the material-pushing 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-pushing assembly 5. A rectangular through-slot 3 for opening the bag is formed on the base plate 1. The blades on the material-fixing assembly 4 and the material-pushing assembly 5 correspond to the front and rear sides of the through-slot 3.
[0028] 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.
[0029] 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 have two material pulling cylinders 53, respectively located 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.
[0030] 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.
[0031] 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.
[0032] 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 mounted 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 mounted 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 mounted on the pressure frame platform 21. The pressure strip cylinder 26 is mounted 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 located at the bottom of the outer pressure frame 23 and corresponds to the inner pressure strip 25 front and back.
[0033] 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 in the pressing plate 22, and the sleeve is fixedly covered by 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.
[0034] 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.
[0035] A pressing assembly 6 is also provided on the substrate 1. The pressing assembly 6 includes a plastic sheet 61, a support 62, and a driving cylinder 63. The plastic sheet 61 is located at the bottom of the substrate 1, and one edge of it is fixed to the substrate 1. The plastic sheet 61 can be made of manganese steel or other materials with high 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 sheet 61 away from the substrate 1. A pocket groove 65 corresponding to the through groove 3 is formed on the plastic sheet 61. The size of the pocket groove 65 is larger than the pocket sewing area.
[0036] 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 inserting knife of the inserting knife mechanism inserts the cut pocket fabric into the pulling knife. Next, the pulling knife pulls the fabric outward and shapes it on the fixing knife. Finally, the plastic plate 61 is reset to press down the folded pocket edge to prevent the pocket from deforming during the movement of the base plate and the sewing process of the pocket.
[0037] 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 external pressure frame assembly for a laser bag-opening machine, the novel external pressure frame assembly being a component that moves horizontally between various workstations on the worktable of the bag-opening machine, the novel external pressure frame assembly comprising a base plate (1), a pressure frame assembly (2), a material fixing assembly (4), and a material pulling assembly (5), wherein the base plate (1) is provided with a through groove (3) for opening the bag, characterized in that: 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 U-shaped. 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 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 two sets of material pulling drive components are used to 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).
2. A new outer pressure frame assembly for a laser bag opener according to claim 1, characterized in that: The pressing frame assembly (2) includes a pressing frame platform (21), a pressing strip platform (22), an outer pressing frame (23), an outer pressing strip (24), an inner pressing strip (25), a pressing strip cylinder (26), and a tension spring (28). A second guide rail (29) is vertically arranged on the base plate (1). The pressing frame platform (21) is slidably adapted to the second guide rail (29) by a slider. The base plate (1) is provided with a drive mechanism for driving the pressing frame platform (21) to rise and fall. The device has a guide rail (27) on the pressure frame plate (21), and the pressure strip plate (22) is slidably adapted to the guide rail (27) by a slider. The outer pressure frame (23) is set on the pressure frame plate (21), and the pressure strip cylinder (26) is set on the pressure strip plate (22) and is used to drive the inner pressure strip (25) to rise and fall. The outer pressure strip (24) is set at the bottom of the outer pressure frame (23) and corresponds to the inner pressure strip (25) front and back.
3. A new outer pressure frame assembly for a laser bag opener as claimed in claim 2, wherein: The pressure strip plate (22) and the pressure frame plate (21) are connected by a tension spring (28).
4. A new outer pressure frame assembly for a laser bag opener according to claim 1, characterized in that: 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).
5. A new outer pressure frame assembly for a laser bag opener according to claim 1, characterized in that: The material-fixing drive component includes a material-fixing driver and a material-fixing link (44). The material-fixing driver is disposed on the substrate (1) and is connected to the outer material-fixing blade (41) or the inner material-fixing blade (42) through the material-fixing link (44).
6. A new outer pressure frame assembly for a laser bag opener according to claim 1, characterized in that: The material pulling drive component includes a material pulling driver and a material pulling link (54). The material pulling driver is disposed on the substrate (1) and is connected to the outer material pulling knife (51) or the inner material pulling knife (52) through the material pulling link (54).
7. A novel outer pressure frame assembly for a laser bag opening machine according to claim 6, characterized in that: The outer pull blade (51) and the inner pull blade (52) are provided with guide plates (55) at their tails. The guide plates (55) are provided with guide grooves (56) axially. The base plate (1) is fixed with a sliding shaft (57) that can slide in the guide groove (56). The pull drive is connected to the guide plate (55) through a pull rod (54).
Citation Information
Patent Citations
Automatic bag opening machine
CN220724510U
Automatic real pocket manufacturing machine
CN221167014U