A portable bag folding mechanism

Abstract

This utility model discloses a lightweight folding bag mechanism, belonging to the technical field of garment processing equipment. The lightweight folding bag mechanism is used for opening and folding bags from fabric. It includes a first driving component and a driving fixing component. The first driving component is installed on the side wall of the front end of the driving fixing component, and is driven by the driving fixing component to reciprocate vertically. Two output ends of the first driving component are respectively directly or indirectly equipped with first blades, which are symmetrically arranged on both sides of the bag opening. The first driving component drives the two first blades to reciprocate horizontally in opposite or opposite directions. The first blades are integrally formed. The bottoms of the two first blades are bent or folded outwards. This arrangement allows the two first blades to fit snugly with the cut pocket of the fabric, preventing incomplete folding.

Description

Technical Field

[0001] This utility model belongs to the technical field of garment processing equipment, and more specifically, relates to a lightweight folding bag mechanism. Background Technology

[0002] In the garment manufacturing process, the pocket opening machine is an essential auxiliary processing machine, mainly used to form pockets in specific locations on the garment. The pocket opening and folding operations are indispensable steps in this process.

[0003] Existing technology, Chinese utility model patent application number "CN202420081231.9" discloses a bag folding mechanism for a bag opening machine, which discloses that each insert connecting plate 48 has a folding insert 49 fixedly connected to its lower end face. The length direction of the folding insert 49 is the same as the length direction of the bag opening machine, and the width direction of the folding insert 49 is the same as the width direction of the bag opening machine. The lower end of the folding insert 49 is cuboid, and four folding inserts 49 are symmetrically distributed on both sides of the bag opening, so that the four inserts... When the connecting plate 48 moves towards each other until it is assembled into a whole, the four folding fabric inserts 49 are joined together with their surfaces close to each other, and the four folding fabric inserts 49 are assembled into a complete cuboid. In this design, the four folding fabric inserts are symmetrically distributed on both sides of the bag opening, and two folding fabric inserts are on one side of the bag opening. In the process of use, there is a certain gap between two adjacent inserts on the same side, which makes it easy for the folded edge to be incomplete and protrude when folding the fabric of the pocket, thus causing defects. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a lightweight folding bag mechanism that can make the blade fit snugly with the fabric cut into the bag, thus avoiding incomplete folding.

[0005] This utility model discloses a lightweight bag folding mechanism for opening and folding bags of fabric. It includes a first driving component and a driving fixing component. The first driving component is installed on the side wall of the front end of the driving fixing component. The driving fixing component drives the first driving component to reciprocate in the vertical direction.

[0006] The first drive assembly has two output terminals on which first blades are directly or indirectly mounted, and the first blades are symmetrically arranged on both sides of the bag opening; the first drive assembly drives the two first blades to reciprocate in relative or opposite directions in the horizontal direction;

[0007] The first blade is integrally formed; the bottoms of the two first blades are bent or folded outwards.

[0008] As a further improvement of this utility model, a second drive assembly is respectively installed on both sides of the first drive assembly, and a second blade is directly or indirectly installed on the output end of the second drive assembly; the second blade is symmetrically arranged on both sides of the first blade; the bottom of the second blade is bent or folded outwards.

[0009] As a further improvement of this utility model, the first drive assembly includes a first cylinder and a connecting frame; the first drive assembly is mounted on the drive fixing assembly via the connecting frame; fixing frames are fixedly mounted at both ends of the connecting frame, and an upper cover plate is provided on the top of the fixing frame, with the first cylinder fixedly mounted at the bottom of the upper cover plate.

[0010] The first cylinder is a finger cylinder, which has two output ends, which are connected to the first blade either indirectly or directly.

[0011] As a further improvement of this utility model, when the bag folding mechanism is in the initial state, in the vertical direction, the bottom of the first blade is below the bottom of the second blade.

[0012] As a further improvement of this utility model, the second driving assembly includes a first guide rail, which is vertically oriented; a first slider is slidably disposed on the side of the first guide rail away from the fixed frame, and a connecting seat is fixedly disposed on the outer side wall of the first slider away from the first guide rail; a mounting plate is fixedly disposed on the outer side wall of the connecting seat away from the first slider; the mounting plate is horizontally oriented and perpendicular to the connecting seat; a second guide rail is fixedly disposed at the bottom of the mounting plate; a second slider is slidably disposed at the bottom of the second guide rail; a first pull plate is fixedly disposed at the bottom of the second slider; a pull rod is fixedly disposed at the end of the first pull plate away from the connecting seat; a third cylinder is fixedly disposed at the top of the mounting plate; the output end of the third cylinder is connected to the pull rod to drive the pull rod to move the first pull plate reciprocally along the second guide rail.

[0013] As a further improvement of this utility model, a second cylinder is fixedly installed at both ends of the upper cover plate, and the second cylinder is mounted above the mounting plate; the output end of the second cylinder is set downward and is installed and connected to the mounting plate to drive the mounting plate to reciprocate in the vertical direction, thereby driving the second blade, which is indirectly installed and connected to the mounting plate, to reciprocate synchronously in the vertical direction.

[0014] As a further improvement of this utility model, the drive fixing component includes a mounting base; a connecting bracket is mounted on the front side wall of the mounting base;

[0015] A third guide rail is fixedly installed on the side wall of the mounting base away from the connecting frame. A third slider is slidably installed on the side of the third guide rail away from the mounting base. A support is fixedly installed on the side of the third slider away from the third guide rail. A motor is fixedly installed on the side of the support away from the third slider. The output end of the motor passes through the support. A gear is installed on the output end of the motor. The gear is located between the support and the mounting base. A rack is also fixedly installed on the side wall of the mounting base away from the connecting frame. The rack and the gear are meshed together.

[0016] As a further improvement of this utility model, the two output ends of the first cylinder are respectively equipped with a first plate frame; a first moving block is fixedly provided at the bottom of the first plate frame, and a first tool holder is detachably embedded at the lower end of the first moving block, and a first blade is detachably installed at the lower end of the first tool holder.

[0017] As a further improvement of this utility model, a second plate frame is installed at the bottom of the first pull plate, a second movable block is fixedly installed at the bottom of the second plate frame, a second knife holder is detachably embedded at the lower end of the second movable block, and a second blade is detachably installed at the bottom of the second knife holder.

[0018] As a further improvement of this utility model, it also includes a laser assembly, which is installed on the right side of the drive fixing assembly; the laser assembly includes a fourth cylinder, a laser guide rail fixing block, an assembly plate, and a laser component; the assembly plate is installed on the outer side wall of the right side of the drive fixing assembly, and the fourth cylinder is installed on the outer side wall of the assembly plate; the laser guide rail fixing block is fixedly installed on the outer side wall of the assembly plate; the laser guide rail fixing block is located at the front end of the fourth cylinder;

[0019] A fourth guide rail is fixedly installed on the side wall of the laser guide rail fixing block away from the fourth cylinder. A fourth slider is slidably installed on the side of the fourth guide rail away from the laser guide rail fixing block. A support seat is fixedly installed on the side of the fourth slider away from the fourth guide rail. A linkage plate is installed at the output end of the fourth cylinder. The end of the linkage plate away from the fourth cylinder passes around the outer side wall of the laser guide rail fixing block and is installed and connected to the support seat. The linkage plate and the laser guide rail fixing block are spaced apart. The fourth guide rail is vertically arranged.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0021] By using a one-piece design for the first blade, the two first blades can fit snugly into the fabric cut pocket, avoiding the problem of incomplete folding caused by the narrow gap between adjacent blades when the two blades on the same side are combined in the existing technology, thus significantly improving the integrity of the folded edge.

[0022] The drive and fixing assembly uses gears and racks to achieve linear reciprocating drive of the first and second blades to move synchronously in the vertical direction; the first drive assembly drives the first blade to reciprocate in the horizontal direction, and the second drive assembly is equipped with a second cylinder and a third cylinder to achieve reciprocating movement of the second blade in both the vertical and horizontal directions;

[0023] The first / second blade holder, moving block, and blades are all detachable, making it easy to change the appropriate blade or adjust the stroke according to different fabric thicknesses or pocket sizes, and has strong adaptability and expandability.

[0024] The laser assembly and the folding bag assembly are integrated on the same drive and fixing assembly, which can accurately position and cut the pocket opening of the fabric, and complete the subsequent folding bag operation. This reduces process switching and equipment space occupation, and enhances the portability and mobility of the machine. Attached Figure Description

[0025] Figure 1 This is a front view structural diagram of the bag folding mechanism of this utility model;

[0026] Figure 2 This is an exploded view of the folding bag assembly of this utility model;

[0027] Figure 3 This is a schematic diagram of the drive fixing component and laser component of this utility model;

[0028] Figure 4 This is one of the schematic diagrams of the drive fixing assembly of this utility model with the side plate and cover removed;

[0029] Figure 5 This is the second schematic diagram of the drive fixing assembly of this utility model without the side plate and the cover.

[0030] Explanation of the labels in the diagram:

[0031] 1. Laser component; 11. Fourth cylinder; 12. Laser guide rail fixing block; 13. Assembly plate; 14. Linkage plate; 15. Support seat; 16. Laser component; 2. Drive fixing assembly; 21. Mounting base; 22. Support; 23. Rack; 24. Gear; 25. Motor; 26. Cover; 27. Side plate; 28. Third guide rail; 29. ​​Third slider; 3. Folding bag assembly; 31. First blade; 32. Second blade; 33. First moving block; 34. First knife holder; 35. Second moving block; 36. Second knife holder; 37. First plate frame; 38. Second plate frame; 39. First cylinder; 310. Second cylinder; 311. Third cylinder; 312. Pull rod; 313. Connecting frame; 314. Fixing frame; 315. Connecting seat; 316. First pull plate. Detailed Implementation

[0032] The present invention will be further described in detail below with reference to the embodiments. The following embodiments are explanations of the present invention, but the present invention is not limited to the following embodiments.

[0033] For the sake of clarity and simplicity in describing this application, Figure 1 The folding bag mechanism in the middle is provided with one end of the folding bag component 3, that is Figure 1 The front side of the folding bag mechanism is defined as the front end of the folding bag mechanism; Figure 1 One end of the middle is equipped with laser component 1, that is Figure 1 The right side of the folding bag mechanism is defined as the right end of the folding bag mechanism; Figure 1 The left side of the folding bag mechanism is defined as the left end of the folding bag mechanism. Figure 1 The rear side of the folding bag mechanism is defined as the rear end of the folding bag mechanism; the orientation or positional relationship indicated above is based on the attached... Figure 1 The orientations or positional relationships shown are for the purpose of facilitating and simplifying the description of this application, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0034] Specific Implementation Example 1: Please refer to Figure 1 - Figure 5 A lightweight bag-folding mechanism for opening and folding bags of fabric includes a laser assembly 1, a drive and fixing assembly 2, and a bag-folding assembly 3.

[0035] The laser assembly 1 is installed on the side wall of the right end of the drive fixing assembly 2 for laser cutting of the fabric to be processed;

[0036] The folding bag assembly 3 is installed on the side wall of the front end of the drive fixing assembly 2. The drive fixing assembly 2 includes a drive device, and the output end of the drive device is installed and connected to the folding bag assembly 3 to drive the folding bag assembly 3 to reciprocate in the vertical direction.

[0037] The folding bag assembly 3 includes a first driving assembly, which includes a first cylinder 39, a fixing frame 314, and a connecting frame 313. The fixing frame 314 is fixedly installed at both ends of the connecting frame 313, and a top cover plate is provided on the top of the fixing frame 314. A front fixing plate is fixedly installed at the front end of the fixing frame 314. The first cylinder 39 is fixedly installed at the bottom of the top cover plate. The first cylinder 39 is a finger cylinder. Two sets of first folding knife assemblies are fixedly installed at the output end of the first cylinder 39. The first cylinder 39 has two output ends, and each of the two output ends is installed and connected to one of the sets of first folding knife assemblies. The two sets of first folding knife assemblies are matched and symmetrically distributed on both sides of the bag opening. The first cylinder 39 drives the two sets of first folding knife assemblies to reciprocate in opposite directions in the horizontal direction.

[0038] Optionally, there are two first cylinders 39, and the two first cylinders 39 are respectively abutted against the inner sidewall of the opposite side of the two fixing brackets 314.

[0039] The first folding knife assembly includes a first plate frame 37 and a first blade 31; the two output ends of the first cylinder 39 are respectively installed and connected to the first plate frame 37 of the corresponding first folding knife assembly; a corresponding first moving block 33 is fixedly provided at the bottom of the first plate frame 37, and a first knife holder 34 is detachably embedded at the lower end of the first moving block 33. The first blade 31 is detachably installed at the lower end of the first knife holder 34. The first blades 31 of the two sets of first folding knife assemblies are relatively parallel and aligned at the bottom, that is, the first blades 31 are symmetrically distributed on both sides of the bag opening.

[0040] The first blade 31 is integrally formed; the bottom of the first blade 31 is bent or folded outwards.

[0041] A second drive assembly is fixedly installed on the outer side wall of the two fixed brackets 314 away from the first cylinder 39. A second folding blade assembly is installed at the output end of the second drive assembly. The two sets of second folding blade assemblies are located on the left and right sides of the first folding blade assembly.

[0042] The second drive assembly includes a first guide rail, which is vertically oriented; a first slider is slidably mounted on the side of the first guide rail away from the fixing frame 314, and a connecting seat 315 is fixedly mounted on the outer wall of the first slider away from the first guide rail; a mounting plate is fixedly mounted on the outer wall of the connecting seat 315 away from the first slider; the mounting plate is horizontally oriented and perpendicular to the connecting seat 315; a second guide rail is fixedly mounted at the bottom of the mounting plate; a second slider is slidably mounted at the bottom of the second guide rail; a first pull plate 316 is fixedly mounted at the bottom of the second slider; a pull rod 312 is fixedly mounted at the end of the first pull plate 316 away from the connecting seat 315; a third cylinder 311 is fixedly mounted at the top of the mounting plate; the output end of the third cylinder 311 is connected to the pull rod 312 to drive the pull rod 312 to reciprocate along the second guide rail with the first pull plate 316.

[0043] The second folding knife assembly includes a second knife holder 36 and a second blade 32; a second plate frame 38 is installed at the bottom of the first pull plate 316, a second moving block 35 is fixedly installed at the bottom of the second plate frame 38, the second knife holder 36 is detachably embedded in the lower end of the second moving block 35, and the second blade 32 is detachably installed at the bottom of the second knife holder 36.

[0044] The second blade 32 is symmetrically arranged on both sides of the first blade 31; the second blades 32 are relatively parallel and aligned at the bottom.

[0045] The bottom of the second blade 32 is bent or folded outwards.

[0046] The second blade 32 is designed in the shape of a thin strip.

[0047] When the bag folding mechanism is in the initial state, in the vertical direction, the bottom of the first blade 31 is below the bottom of the second blade 32.

[0048] The upper cover plate is fixedly equipped with a second cylinder 310 at both ends, and the second cylinder 310 is mounted above the mounting plate. The output end of the second cylinder 310 is set downward and is installed and connected to the mounting plate to drive the mounting plate to reciprocate in the vertical direction, thereby driving the second blade 32, which is indirectly installed and connected to the mounting plate, to reciprocate synchronously in the vertical direction.

[0049] The drive fixing assembly 2 includes a mounting base 21; a connecting bracket 313 is fixedly mounted on the front side wall of the mounting base 21 away from the rear side wall of the first cylinder 39; the folding bag assembly 3 is mounted and connected to the drive fixing assembly through the connecting bracket 313.

[0050] A third guide rail 28 is fixedly installed on the side wall of the mounting base 21 away from the connecting frame 313. A third slider 29 is slidably installed on the side of the third guide rail 28 away from the mounting base 21. A support 22 is fixedly installed on the side of the third slider 29 away from the third guide rail 28. A motor 25 is fixedly installed on the side of the support 22 away from the third slider 29. The output end of the motor 25 passes through the support 22. A gear 24 is installed on the output end of the motor 25. The gear 24 is located between the support 22 and the mounting base 21. A rack 23 is also fixedly installed on the side wall of the mounting base 21 away from the connecting frame 313. The rack 23 and the gear 24 are meshed together. The motor 25 drives the rack to reciprocate in the vertical direction through the gear 24, thereby driving the mounting base 21 to reciprocate synchronously in the vertical direction, and finally driving the folding bag assembly 3 to reciprocate synchronously in the vertical direction.

[0051] Side plates 27 are fixedly installed on the left and right side walls of the support 22 respectively; a cover 26 is installed on the top of the side plate 27; a bracket is fixedly installed on the inner side wall of both side plates 27; a connecting base is fixedly installed at the end of the bracket away from the support 22, and the folding bag mechanism is installed and connected to the external mechanism through the connecting base.

[0052] The laser assembly 1 includes a fourth cylinder 11, a laser guide rail fixing block 12, an assembly plate 13, and a laser component 16. The assembly plate 13 is installed on the outer side wall of the side plate 27 on the right side of the drive fixing assembly 2, and the fourth cylinder 11 is installed on the outer side wall of the assembly plate 13 on the side away from the side plate 27. The laser guide rail fixing block 12 is fixedly installed on the outer side wall of the assembly plate 13. The laser guide rail fixing block 12 is located at the front end of the fourth cylinder 11.

[0053] A fourth guide rail is fixedly installed on the side wall of the laser guide rail fixing block 12 away from the fourth cylinder 11. A fourth slider is slidably installed on the side of the fourth guide rail away from the laser guide rail fixing block 12. A support seat 15 is fixedly installed on the side of the fourth slider away from the fourth guide rail. A linkage plate 14 is installed at the output end of the fourth cylinder 11. The end of the linkage plate 14 away from the fourth cylinder 11 passes around the outer side wall of the laser guide rail fixing block 12 and is installed and connected to the support seat 15. The linkage plate 14 and the laser guide rail fixing block 12 are spaced apart. The fourth guide rail is vertically arranged.

[0054] The fourth cylinder 11 drives the linkage plate 14 to reciprocate in the vertical direction, thereby driving the support seat 15 and the laser component 16 on the support seat 15 to reciprocate synchronously in the vertical direction.

[0055] According to existing technology, Chinese utility model patent application number "CN202420081231.9" discloses a bag folding mechanism for a bag opening machine: the bag opening machine includes a fixed upper crossbeam; the bag folding mechanism is fixedly mounted on the upper crossbeam so that the upper crossbeam supports the bag folding mechanism; the bag folding mechanism has the ability to fold the bag opening downwards, and the bag folding mechanism folds the cut edge of the bag opening downwards to make it tilt downwards, thus completing the bag folding action; in a different embodiment of the present application, the bag folding mechanism is slidably mounted on the upper crossbeam via a connecting base, and a drive mechanism is provided on the bag opening machine. The output end of the drive mechanism is installed and connected to the bag folding mechanism to drive the bag folding mechanism to reciprocate on the crossbeam; this sliding connection is existing technology well known to those skilled in the art, and will not be described in detail here. The embodiments of the present application are not limited to this, as long as the bag folding mechanism can move laterally on the bag opening machine.

[0056] Working principle:

[0057] The location of the pocket on the fabric is accurately marked and the opening is cut using laser component 1;

[0058] When the folding mechanism is in the initial state, in the vertical direction, the bottom of the first folding blade assembly is below the bottom of the second folding blade assembly;

[0059] When the folding bag mechanism is running, the motor 25 runs, which drives the rack to move downward in the vertical direction through the gear 24, thereby driving the mounting base 21 to move downward in the vertical direction synchronously, and finally driving the folding bag assembly 3 to move downward in the vertical direction synchronously. At this time, the first blade 31 reaches the pocket cutting opening, the first cylinder 39 runs, driving the two first blades 31 to move in opposite directions, that is, opening the two first blades 31; then the third cylinder 311 runs, driving the second blade 32 to move toward the first blade 31 to the predetermined position, after which the second cylinder 310 starts running, driving the second blade 32 to move downward to the pocket cutting opening, the third cylinder 311 runs again, driving the two second blades 32 to move in opposite directions;

[0060] Finally, the bag folding operation is achieved through the first blade 31 and the second blade 32.

[0061] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto; any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and its improved concept, should be covered within the scope of protection of this application.

Claims

1. A lightweight bag-folding mechanism for opening and folding bags of fabric, characterized in that: It includes a first driving component and a driving fixing component (2). The first driving component is installed on the side wall of the front end of the driving fixing component (2). The driving fixing component (2) drives the first driving component to reciprocate in the vertical direction. The first drive assembly has two output terminals on which the first blades (31) are directly or indirectly installed. The first blades (31) are symmetrically arranged on both sides of the bag opening. The first drive assembly drives the two first blades (31) to move back and forth in the horizontal direction in opposite or opposite directions. The first blade (31) is integrally formed; the bottoms of the two first blades (31) are bent or folded outwards relative to each other.

2. The lightweight folding bag mechanism according to claim 1, characterized in that: A second drive assembly is installed on each side of the first drive assembly. A second blade (32) is installed directly or indirectly on the output end of the second drive assembly. The second blade (32) is symmetrically arranged on both sides of the first blade (31). The bottom of the second blade (32) is bent or folded outwards.

3. The lightweight folding bag mechanism according to claim 1, characterized in that: The first drive assembly includes a first cylinder (39) and a connecting frame (313); the first drive assembly is mounted on the drive fixing assembly (2) via the connecting frame (313); fixing frames (314) are fixedly mounted at both ends of the connecting frame (313), and an upper cover plate is provided on the top of the fixing frame (314), and the first cylinder (39) is fixedly mounted on the bottom of the upper cover plate; The first cylinder (39) is a finger cylinder. The finger cylinder has two output ends, which are connected to the first blade (31) either indirectly or directly.

4. A lightweight folding bag mechanism according to claim 2, characterized in that: When the bag folding mechanism is in the initial state, in the vertical direction, the bottom of the first blade (31) is below the bottom of the second blade (32).

5. A lightweight folding bag mechanism according to claim 2, characterized in that: The second drive assembly includes a first guide rail, which is vertically oriented; a first slider is slidably arranged on the side of the first guide rail away from the fixed frame (314), and a connecting seat (315) is fixedly arranged on the outer wall of the first slider away from the first guide rail; a mounting plate is fixedly arranged on the outer wall of the connecting seat (315) away from the first slider; the mounting plate is horizontally oriented and perpendicular to the connecting seat (315); a second guide rail is fixedly arranged at the bottom of the mounting plate; a second slider is slidably arranged at the bottom of the second guide rail; a first pull plate (316) is fixedly arranged at the bottom of the second slider; a pull rod (312) is fixedly arranged at the end of the first pull plate (316) away from the connecting seat (315); a third cylinder (311) is fixedly arranged at the top of the mounting plate; the output end of the third cylinder (311) is connected to the pull rod (312) to drive the pull rod (312) to move the first pull plate (316) back and forth along the second guide rail.

6. A lightweight folding bag mechanism according to claim 5, characterized in that: The upper cover plate is fixedly equipped with a second cylinder (310) at both ends. The second cylinder (310) is mounted above the mounting plate. The output end of the second cylinder (310) is set downward and is installed and connected to the mounting plate to drive the mounting plate to move back and forth in the vertical direction, thereby driving the second blade (32) which is indirectly installed and connected to the mounting plate to move back and forth synchronously in the vertical direction.

7. A lightweight folding bag mechanism according to claim 1, characterized in that: The drive fixing assembly (2) includes a mounting base (21); a connecting bracket (313) is mounted on the front side wall of the mounting base (21); A third guide rail (28) is fixedly installed on the side wall of the mounting base (21) away from the connecting frame (313). A third slider (29) is slidably installed on the side of the third guide rail (28) away from the mounting base (21). A support (22) is fixedly installed on the side of the third slider (29) away from the third guide rail (28). A motor (25) is fixedly installed on the side of the support (22) away from the third slider (29). The output end of the motor (25) passes through the support (22). A gear (24) is installed on the output end of the motor (25). The gear (24) is located between the support (22) and the mounting base (21). A rack (23) is also fixedly installed on the side wall of the mounting base (21) away from the connecting frame (313). The rack (23) and the gear (24) are meshed together.

8. A lightweight folding bag mechanism according to claim 1, characterized in that: The first cylinder (39) has two output ends on which a first plate frame (37) is installed respectively; a first moving block (33) is fixedly installed at the bottom of the first plate frame (37), and a first tool holder (34) is detachably embedded at the lower end of the first moving block (33), and a first blade (31) is detachably installed at the lower end of the first tool holder (34).

9. A lightweight folding bag mechanism according to claim 5, characterized in that: A second plate frame (38) is installed at the bottom of the first pull plate (316), a second moving block (35) is fixedly installed at the bottom of the second plate frame (38), a second knife holder (36) is detachably embedded at the lower end of the second moving block (35), and a second blade (32) is detachably installed at the bottom of the second knife holder (36).

10. A lightweight folding bag mechanism according to claim 1, characterized in that: It also includes a laser assembly (1), which is installed on the right side of the drive fixing assembly (2); the laser assembly (1) includes a fourth cylinder (11), a laser guide rail fixing block (12), an assembly plate (13) and a laser component (16); the assembly plate (13) is installed on the outer side wall of the right side of the drive fixing assembly (2), and the fourth cylinder (11) is installed on the outer side wall of the assembly plate (13); the laser guide rail fixing block (12) is fixedly installed on the outer side wall of the assembly plate (13); the laser guide rail fixing block (12) is located at the front end of the fourth cylinder (11); A fourth guide rail is fixedly installed on the side wall of the laser guide rail fixing block (12) away from the fourth cylinder (11). A fourth slider is slidably installed on the side of the fourth guide rail away from the laser guide rail fixing block (12). A support seat (15) is fixedly installed on the side of the fourth slider away from the fourth guide rail. A linkage plate (14) is installed at the output end of the fourth cylinder (11). The end of the linkage plate (14) away from the fourth cylinder (11) passes around the outer side wall of the laser guide rail fixing block (12) and is installed and connected to the support seat (15). The linkage plate (14) and the laser guide rail fixing block (12) are spaced apart. The fourth guide rail is vertically arranged.

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