A bag-making machine for producing vest bags

Abstract

This invention relates to a bag-making machine, and more particularly to a bag-making machine for producing vest bags. The invention provides a bag-making machine for producing vest bags, comprising a mounting base, an integrated controller, and a feeding roller. The integrated controller is fixedly mounted on the mounting base. A feeding roller adapted for conveying bag-making raw materials is rotatably mounted on the left side of the mounting base. The machine also includes a stepper motor and a take-up roller. The stepper motor, electrically connected to the integrated controller, is fixedly mounted on the mounting base. The take-up roller is rotatably mounted on the right side of the mounting base. This invention, by setting a fixed roller and a movable roller between the feeding roller and the take-up roller, and by manually rotating a handwheel to move the mounting plate upwards or downwards, adjusts the distance between the movable roller and the fixed roller to flatten the bag-making raw materials, thereby preventing wrinkles or folds in the bag-making raw materials during conveyance, and thus ensuring the production quality of the vest bags.

Description

Technical Field

[0001] This invention relates to a bag-making machine, and more particularly to a bag-making machine for producing vest bags. Background Technology

[0002] Vest bags, also known as vest bags, are a common type of plastic bag. They are named for their resemblance to vests. Vest bags are simple to make and have a wide range of uses. They have become an indispensable necessity in daily life, providing great convenience to people.

[0003] According to the Chinese patent publication document with patent announcement number CN215471538U, a high-capacity vest bag making machine is proposed, which includes a bag making machine body. A material receiving device for collecting waste material is provided between the cutting part and the conveying part of the bag making machine body. The material receiving device includes a material receiving box and a base. The top opening of the material receiving box is provided. Tilting shafts are fixed on the two outer sides of the material receiving box that are opposite to each other. The two tilting shafts are coaxially arranged.

[0004] Although the aforementioned patent can be used to produce vest bags, in actual use, the raw materials are prone to wrinkling or folding during the transfer of bag-making materials, which affects the bag-making effect and reduces product quality. Summary of the Invention

[0005] In order to overcome the shortcomings mentioned in the background art, the present invention provides a bag making machine for producing vest bags, thereby solving the above problems.

[0006] The technical implementation scheme of the present invention is as follows: A bag-making machine for producing vest bags includes a mounting base, an integrated controller, and a feeding roller. The integrated controller is fixedly mounted on the mounting base. A feeding roller adapted for conveying bag-making raw materials is rotatably mounted on the left side of the mounting base. The machine also includes a stepper motor, a take-up roller, a pulley set I, a cylinder, a bag maker, a punching frame, and an adjustment assembly. The stepper motor, electrically connected to the integrated controller, is fixedly mounted on the mounting base. The take-up roller is rotatably mounted on the right side of the mounting base. A pulley set I is provided between the rotating shaft of the take-up roller and the output shaft of the stepper motor. The cylinder, electrically connected to the integrated controller, is fixedly mounted on the mounting base. A bag maker is fixedly connected to the telescopic rod of the cylinder. The bag maker is fixedly equipped with a punching frame. The bottom surface of the punching frame is provided with several punching needles adapted to punch holes in vest bags. The mounting base is equipped with an adjustment component to flatten the bag-making material. The adjustment component includes a fixed roller, a threaded rod, a guide rod I, a mounting plate, and a movable roller. Multiple fixed rollers are rotatably mounted on the upper left side of the mounting base. Threaded rods are symmetrically rotatably mounted on the left side of the mounting base. Guide rod I is symmetrically fixedly mounted on the left side of the mounting base. The left side of the mounting base is provided with a mounting plate that is threadedly connected to the two threaded rods. The mounting plate is slidably connected to the guide rod I. A movable roller is rotatably mounted on the mounting plate. The movable roller is located below the fixed rollers, and the movable roller and the fixed roller are staggered.

[0007] More preferably, the adjustment assembly also includes a rotating rod, a handwheel, and a worm gear assembly. The rotating rod is rotatably mounted inside the mounting plate, and a handwheel is fixedly mounted on the rotating rod. Worm gear assemblies are respectively provided between the rotating rod and the two threaded rods.

[0008] More preferably, it also includes a printing assembly, which includes a guide rod II, a printer, gears and racks. Two guide rods II are symmetrically fixedly connected in the mounting base. Printers that are slidably connected to the guide rods II are symmetrically provided in the mounting base. Both printers are electrically connected to the integrated controller. The upper printer is fixedly connected to the bag maker. Two racks are symmetrically provided on the side of the two printers that are close to each other. Two gears are symmetrically rotatably installed in the mounting base. The corresponding racks mesh with the gears on the same side.

[0009] More preferably, it also includes a clamping assembly, which includes a connecting frame, a pressing block and a return spring. The connecting frames are symmetrically fixedly installed on the two printing machines, and the pressing blocks are slidably installed on the side of the two connecting frames that are close to each other on the same side. A return spring is provided between the connection between the pressing block and the corresponding connecting frame.

[0010] More preferably, friction textures are provided on the side where the two pressing blocks on the same side are close to each other.

[0011] More preferably, it also includes a support assembly, which includes a mounting rod, a connecting plate, a torsion spring, a support plate, and a return spring I. The mounting rod is symmetrically and rotatably installed in the connecting frame located on the right side of the lower printing machine. A connecting plate is fixedly connected between the two mounting rods. A torsion spring is provided between the connection point of the connecting plate and the corresponding connecting frame. A support plate that can slide up and down along the connecting plate is provided on the connecting plate. A return spring I is provided between the connection point of the support plate and the connecting plate.

[0012] More preferably, the support plate is located directly below the punching frame, and the support plate is provided with positioning holes corresponding to the punching pins of the punching frame.

[0013] More preferably, it also includes a flipping assembly, which includes a pulley group II, a fixed column, a top block, a return spring II, and a protrusion. The pulley group II is symmetrically arranged between the mounting base and the rotating shaft of the take-up roller. The right side of the mounting base is symmetrically fixedly installed with fixed columns. Each of the two fixed columns has a top block that can slide up and down along it. A return spring II is provided between the top block and the corresponding fixed column. When the top block moves upward, it will abut against the mounting rod on the same side. The lower ends of the two pulley groups II are fixedly installed on the side that are close to each other. When the pulley group II rotates, the protrusion will abut against the top block on the same side.

[0014] More preferably, it also includes a collection basket, which is provided on the mounting base.

[0015] More preferably, it also includes guide rollers, with guide rollers symmetrically arranged on the mounting base.

[0016] Compared with the prior art, the present invention has the following advantages: 1. The present invention sets a fixed roller and a movable roller between the feeding roller and the winding roller, and uses a manual handwheel to move the mounting plate up or down, thereby adjusting the distance between the movable roller and the fixed roller to flatten the bag making material, thereby preventing the bag making material from wrinkling or folding during the transmission process, and thus ensuring the production quality of vest bags.

[0017] 2. This invention sets up a printing device below the bag maker and uses the cooperation of gears and racks to make the two printing devices move synchronously closer and further apart. The lower printing device can support the bag making material while also realizing double-sided printing of the vest bag. This not only improves the appearance of the vest bag, but also saves the time spent on the subsequent flipping and printing of the vest bag, thereby improving the bag making efficiency.

[0018] 3. This invention clamps and fixes the bag-making raw material by setting a pressing block, thereby ensuring the stability of the bag-making raw material during processing and preventing the production quality from being affected by the displacement of the bag-making raw material. It also uses a support plate in conjunction with a punching frame to punch holes in the bag-making raw material, thereby improving the accuracy of the hole opening.

[0019] 4. The present invention uses the rotation of the pulley group II to drive the protrusion to move the top block, thereby causing the connecting plate to deflect. This allows the plastic waste generated from drilling holes in the connecting plate and the support plate to be dumped, preventing the residual plastic waste from accumulating and affecting subsequent bag making. At the same time, the collection basket will collect the fallen plastic waste, thereby reducing the amount of manual cleaning. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0021] Figure 2 This is a partial structural schematic diagram of the present invention.

[0022] Figure 3 This is a schematic diagram of the structure of the adjustment component of the present invention.

[0023] Figure 4 This is a schematic diagram of the printing component of the present invention.

[0024] Figure 5 This is a schematic diagram of the clamping assembly of the present invention.

[0025] Figure 6 This is a schematic diagram of the support component of the present invention.

[0026] Figure 7 This is a partial structural diagram of the support component of the present invention.

[0027] Figure 8 This is a schematic diagram of the structure of the flipping component of the present invention.

[0028] Figure 9 This is a partial structural diagram of the flipping component of the present invention.

[0029] Figure 10 This is a cross-sectional structural diagram of the fixing column of the present invention.

[0030] The above-mentioned attached drawings include the following reference numerals: 1. Mounting base; 2. Integrated controller; 3. Feeding roller; 4. Stepper motor; 5. Take-up roller; 6. Pulley assembly I; 7. Cylinder; 8. Bag maker; 9. Perforation frame; 1001. Fixed roller; 1002. Threaded rod; 1003. Guide rod I; 1004. Mounting plate; 1005. Moving roller; 1006. Rotating rod; 1007. Handwheel; 1008. Worm gear assembly; 1101. Guide rod II; 1102. Printing... Flower vase, 1103, gear, 1104, rack, 1201, connecting frame, 1202, pressing block, 1203, return spring, 1301, mounting rod, 1302, connecting plate, 1303, torsion spring, 1304, support plate, 1304a, positioning hole, 1305, return spring I, 1401, pulley group II, 1402, fixing column, 1403, top block, 1404, return spring II, 1405, protrusion, 15, collection basket, 16, guide roller. Detailed Implementation

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Example 1: A bag-making machine for producing vest bags, such as Figures 1-3As shown, the device includes a mounting base 1, an integrated controller 2, and a feeding roller 3. The integrated controller 2 is bolted to the center of the front of the mounting base 1. The feeding roller 3, adapted for conveying bag-making materials, is rotatably mounted on the left side of the mounting base 1. It also includes a stepper motor 4, a take-up roller 5, a pulley set I 6, a cylinder 7, a bag maker 8, a punching frame 9, and an adjustment assembly. The stepper motor 4, electrically connected to the integrated controller 2, is bolted to the right side of the mounting base 1. The take-up roller 5 is rotatably mounted on the right side of the mounting base 1. A pulley set I 6 is provided between the rotating shaft of the take-up roller 5 and the output shaft of the stepper motor 4. The cylinder 7, electrically connected to the integrated controller 2, is bolted to the center of the mounting base 1. The bag maker 8 is bolted to the telescopic rod of the cylinder 7. The punching frame 9 is bolted to the right side of the bag maker 8. The bottom surface of the punching frame 9 has several punching needles adapted for punching holes in vest bags. The mounting base 1... The left side is provided with an adjustment assembly for flattening the bag-making material. The adjustment assembly includes a fixed roller 1001, a threaded rod 1002, a guide rod I 1003, a mounting plate 1004, and a movable roller 1005. Three fixed rollers 1001 are rotatably mounted on the upper left side of the mounting base 1. Threaded rods 1002 are symmetrically rotatably mounted on the left side of the mounting base 1. Guide rods I 1003 are symmetrically mounted on the left side of the mounting base 1 by bolts. The left side of the mounting base 1 is provided with a mounting plate 1004 that is threadedly connected to the two threaded rods 1002. The mounting plate 1004 is slidably connected to the guide rods I 1003. Movable rollers 1005 are symmetrically rotatably mounted on the top surface of the mounting plate 1004. The two movable rollers 1005 are located below the fixed rollers 1001, and the movable rollers 1005 and the fixed rollers 1001 are staggered. The bag-making material will pass through the movable rollers 1005 and the fixed rollers 1001 in sequence.

[0033] like Figures 1-3 As shown, the adjustment assembly also includes a rotating rod 1006, a handwheel 1007, and a worm gear assembly 1008. The rotating rod 1006 is rotatably mounted on the inner left side of the mounting plate 1004. The handwheel 1007 is bolted to the front end of the rotating rod 1006. Worm gear assemblies 1008 are respectively provided between the rotating rod 1006 and the lower ends of the two threaded rods 1002. The rotating rod 1006 will drive the two threaded rods 1002 to rotate synchronously through the worm gear assemblies 1008.

[0034] When producing vest bags, the bag-making material is first fed from the feeding roller 3, sequentially wrapped around the fixed roller 1001 and the moving roller 1005, and then connected to the take-up roller 5. Then, by rotating the handwheel 1007, the handwheel 1007 drives the rotating rod 1006 to rotate. The rotating rod 1006, through the worm gear assembly 1008, drives the two threaded rods 1002 to rotate synchronously. The threaded rods 1002, through their threads, drive the mounting plate 1004 to move upwards or downwards along the guide rod I 1003. The mounting plate 1004 then drives the two moving rollers 1005 to move synchronously. This adjusts the distance between the moving rollers 1005 and the fixed roller 1001 to flatten the bag-making material, preventing wrinkles or folds during transport. After adjustment, the material is then fed through the collection... The integrated controller 2 starts the bag-making program. The integrated controller 2 will start the stepper motor 4 to rotate intermittently. The output shaft of the stepper motor 4 will drive the take-up roller 5 to rotate synchronously through the pulley group I6. After the take-up roller 5 rotates one revolution, the stepper motor 4 will stop for 15 seconds. At this time, the integrated controller 2 will start the cylinder 7. The telescopic rod of the cylinder 7 will drive the bag maker 8 to process the bag-making material below. The bag maker 8 will drive the punching frame 9 to move downward synchronously. The punching needle of the punching frame 9 will cooperate with the bag maker 8 to punch holes in the bag-making material, thereby completing the production of a vest bag. Then the integrated controller 2 will cause the telescopic rod of the cylinder 7 to drive the bag maker 8 to return to the initial position. The stepper motor 4 will then drive the take-up roller 5 to rotate again, thereby winding up the prepared vest bag.

[0035] Example 2: Based on Example 1, such as Figure 1 and Figure 4 As shown, it also includes a printing assembly, which includes a guide rod II 1101, a printer 1102, a gear 1103, and a rack 1104. Two guide rods II 1101 are symmetrically connected to the inner center of the mounting base 1 by bolts. Printers 1102 are symmetrically connected to the guide rods II 1101 by sliding on the inner center of the mounting base 1. Both printers 1102 are electrically connected to the integrated controller 2. The upper printer 1102 is connected to the bag maker 8 by bolts. Two racks 1104 are symmetrically provided on the side of the two printers 1102 that are close to each other. Two gears 1103 are symmetrically rotatably mounted on the inner center of the mounting base 1. The corresponding racks 1104 mesh with the gears 1103 on the same side. The racks 1104 and gears 1103 will cooperate to make the two printers 1102 move closer to each other and further away from each other.

[0036] In the initial state, the printing patterns of the two printing machines 1102 can be set through the integrated controller 2. Then, when the bag maker 8 moves downward, the bag maker 8 will drive the upper printing machine 1102 to move downward synchronously along the guide rod II 1101. As the upper printing machine 1102 moves downward, the upper printing machine 1102 will rotate through the rack 1104 to push the corresponding gear 1103. The gear 1103 will then drive the lower printing machine 1102 to move upward along the guide rod II 1101 through the rack 1104 that meshes with it. This makes the two printing machines 1102 move closer to each other. The lower printing machine 1102 can support the bag making material and also realize double-sided printing processing of the vest bag, thereby improving the aesthetics of the vest bag.

[0037] like Figure 1 and Figure 5 As shown, it also includes a clamping assembly, which includes a connecting frame 1201, a pressing block 1202, and a return spring 1203. The connecting frames 1201 are symmetrically installed on the left and right sides of the two printing machines 1102 by bolts. The pressing blocks 1202 are slidably installed on the side of the two connecting frames 1201 on the same side that are close to each other. The side of the two pressing blocks 1202 on the same side that are close to each other is provided with friction texture. The friction texture will increase the friction between the pressing block 1202 and the bag making material, thereby ensuring the stability of the clamping and fixing. The pressing block 1202 and the corresponding connecting frame 1201 are symmetrically provided with return springs 1203 at the front and back respectively.

[0038] like Figure 1 , Figure 6 and Figure 7 As shown, it also includes a support assembly, which includes a mounting rod 1301, a connecting plate 1302, a torsion spring 1303, a support plate 1304, and a return spring I 1305. The mounting rod 1301 is symmetrically and rotatably mounted in the connecting frame 1201 located on the right side of the lower printing device 1102. The two mounting rods 1301 are connected by bolts to the connecting plate 1302. Torsion springs 1303 are respectively provided between the connection points of the connecting plate 1302 and the corresponding connecting frame 1201. The top surface of the connecting plate 1302 is provided with a support plate 1304 that can slide up and down along it. The support plate 1304 is located directly below the punching frame 9, and the support plate 1304 is provided with a positioning hole 1304a corresponding to the punching needle of the punching frame 9. Return springs I 1305 are symmetrically provided between the connection points of the support plate 1304 and the connecting plate 1302.

[0039] When the two printing machines 1102 move toward each other, the two printing machines 1102 will drive the pressing blocks 1202 to move synchronously through the connecting frame 1201. The pressing blocks 1202 will first contact the bag-making material, and as the two printing machines 1102 move closer, the two pressing blocks 1202 on the same side will clamp and fix the bag-making material under the elastic action of the return spring 1203. The friction texture on the pressing blocks 1202 will increase the friction between the pressing blocks and the bag-making material, thereby ensuring the stability of the bag-making material during processing and preventing the bag-making material from shifting and affecting the production quality. At the same time, the support plate 1304 will cooperate with the punching frame 9 to punch holes in the bag-making material. The punching needle of the punching frame 9 will pass through the positioning hole 1304a of the support plate 1304, thereby improving the accuracy of punching holes in the bag-making material.

[0040] like Figure 1 and Figures 8-10 As shown, it also includes a flipping assembly, which includes a pulley set II 1401, a fixed column 1402, a top block 1403, a return spring II 1404, and a protrusion 1405. The pulley set II 1401 is symmetrically arranged between the right side of the mounting base 1 and the rotating shaft of the take-up roller 5. The fixed columns 1402 are symmetrically installed on the right side of the mounting base 1 by bolts. The two fixed columns 1402 are respectively provided with top blocks 1403 that can slide up and down along them. The connection between the top block 1403 and the corresponding fixed column 1402 is respectively provided with There is a return spring II 1404, and when the top block 1403 moves upward, it will abut against the mounting rod 1301 on the same side. The top block 1403 will cause the connecting plate 1302 to deflect by pushing the mounting rod 1301 on the same side. The lower ends of the two pulley sets II 1401 are close to each other and are respectively bolted with protrusions 1405. When the pulley set II 1401 rotates, the protrusions 1405 will abut against the top block 1403 on the same side. The protrusions 1405 will push the top block 1403 to move upward along the corresponding fixed column 1402.

[0041] like Figure 1 and Figure 9 As shown, it also includes a collection basket 15. The right side of the mounting base 1 is provided with a collection basket 15. The collection basket 15 is located below the connecting plate 1302. Plastic waste falling from the connecting plate 1302 and the support plate 1304 will fall into the collection basket 15 for unified collection.

[0042] When the take-up roller 5 rotates, it drives the two pulley sets II 1401 to rotate synchronously. The two pulley sets II 1401 will push the top blocks 1403 on the same side through the protrusions 1405 to move upward along the corresponding fixed posts 1402. The return spring II 1404 will be compressed. The two top blocks 1403 will push the mounting rods 1301 on the same side to cause the connecting plate 1302 to deflect counterclockwise. The torsion spring 1303 will deform, thereby connecting the connecting plate 1302 and the bearing... Plastic waste generated from punching holes in the tray 1304 is dumped to the left to prevent the residual plastic waste from accumulating and affecting subsequent bag making. The fallen plastic waste will fall into the collection basket 15 for unified collection, thereby reducing the amount of manual cleaning. When the protrusion 1405 is not in contact with the top block 1403, the return spring II 1404 will reset and drive the top block 1403 back to the initial position. The torsion spring 1303 will also reset, causing the connecting plate 1302 to rotate back to the horizontal state.

[0043] like Figure 1 and Figure 2 As shown, it also includes guide rollers 16. Guide rollers 16 are symmetrically arranged on the mounting base 1. The left guide roller 16 is located between the fixed roller 1001 and the bag maker 8, and the right guide roller 16 is located between the punching frame 9 and the winding roller 5. The two guide rollers 16 will further improve the stability of bag making material transmission, thereby ensuring that the bag making material is in a horizontal state during bag making processing.

[0044] Although this disclosure has been shown and described with reference to specific exemplary embodiments thereof, those skilled in the art will understand that various changes in form and detail may be made to this disclosure without departing from the spirit and scope of the disclosure as defined by the appended claims and their equivalents. Therefore, the scope of this disclosure should not be limited to the above embodiments, but should be defined not only by the appended claims, but also by their equivalents.

Claims

1. A bag-making machine for producing vest bags, comprising a mounting base (1), an integrated controller (2), and a feeding roller (3), wherein the integrated controller (2) is fixedly mounted on the mounting base (1), and the feeding roller (3) adapted for conveying bag-making raw materials is rotatably mounted on the left side of the mounting base (1), characterized in that, It also includes a stepper motor (4), a take-up roller (5), a pulley set I (6), a cylinder (7), a bag maker (8), a punching frame (9), and an adjustment assembly. The stepper motor (4), which is electrically connected to the integrated controller (2), is fixedly mounted on the mounting base (1). The take-up roller (5) is rotatably mounted on the right side of the mounting base (1). A pulley set I (6) is provided between the rotating shaft of the take-up roller (5) and the output shaft of the stepper motor (4). The cylinder (7), which is electrically connected to the integrated controller (2), is fixedly mounted on the mounting base (1). The bag maker (8) is fixedly connected to the telescopic rod of the cylinder (7). (8) A punching frame (9) is fixedly installed on the top. The bottom surface of the punching frame (9) is provided with several punching needles suitable for punching holes in vest bags. The mounting base (1) is provided with an adjustment component for flattening the bag-making material. The adjustment component includes a fixed roller (1001), a threaded rod (1002), a guide rod I (1003), a mounting plate (1004), and a moving roller (1005). Multiple fixed rollers (1001) are rotatably installed on the upper left side of the mounting base (1). Threaded rods (1002) are symmetrically rotatably installed on the left side of the mounting base (1). Guide rods are symmetrically fixedly installed on the left side of the mounting base (1). The left side of the mounting base (1) is provided with a mounting plate (1004) that is threadedly connected to the two threaded rods (1002). The mounting plate (1004) is slidably connected to the guide rod I (1003). A movable roller (1005) is rotatably mounted on the mounting plate (1004). The movable roller (1005) is located below the fixed roller (1001), and the movable roller (1005) and the fixed roller (1001) are staggered. The printing assembly includes a guide rod II (1101), a printer (1102), a gear (1103), and a rack (1104). The mounting base (1) Two guide rods II (1101) are fixedly connected symmetrically inside the mounting base (1). Printers (1102) are symmetrically connected to the guide rods II (1101) in a sliding manner. Both printers (1102) are electrically connected to the integrated controller (2). The upper printer (1102) is fixedly connected to the bag maker (8). Two racks (1104) are symmetrically provided on the side of the two printers (1102) that are close to each other. Two gears (1103) are symmetrically rotatably installed inside the mounting base (1). The corresponding racks (1104) mesh with the gears (1103) on the same side.The support assembly includes mounting rods (1301), connecting plates (1302), torsion springs (1303), support plates (1304), and return spring I (1305). Mounting rods (1301) are symmetrically and rotatably mounted within connecting brackets (1201) located on the right side of the lower printing unit (1102). Connecting plates (1302) are fixedly connected between the two mounting rods (1301). The connecting plates (1302) are connected to the corresponding connecting brackets (1201). A torsion spring (1303) is provided between the connecting points, and a support plate (1304) that can slide up and down is provided on the connecting plate (1302). A return spring I (1305) is provided between the support plate (1304) and the connecting plate (1302); the support plate (1304) is located directly below the punching frame (9), and the support plate (1304) is provided with a positioning hole (1304a) corresponding to the punching needle of the punching frame (9); the flipping assembly It includes a pulley assembly II (1401), a fixed column (1402), a top block (1403), a return spring II (1404), and a protrusion (1405). The pulley assembly II (1401) is symmetrically arranged between the shaft of the mounting base (1) and the winding roller (5). The fixed column (1402) is symmetrically fixedly installed on the right side of the mounting base (1). The two fixed columns (1402) are respectively provided with top blocks (1403) that can slide up and down along them. A return spring II (1404) is provided between the connection point of the top block (1403) and the corresponding fixed post (1402). When the top block (1403) moves upward, it will abut against the mounting rod (1301) on the same side. A protrusion (1405) is fixedly installed on the lower end of the two pulley sets II (1401) on the side closest to each other. When the pulley sets II (1401) rotate, the protrusion (1405) will abut against the top block (1403) on the same side.

2. A bag-making machine for producing vest bags according to claim 1, characterized in that, The adjustment assembly also includes a rotating rod (1006), a handwheel (1007), and a worm gear assembly (1008). The rotating rod (1006) is rotatably mounted inside the mounting plate (1004), and the handwheel (1007) is fixedly mounted on the rotating rod (1006). A worm gear assembly (1008) is provided between the rotating rod (1006) and the two threaded rods (1002).

3. A bag-making machine for producing vest bags according to claim 2, characterized in that, It also includes a clamping assembly, which includes a connecting frame (1201), a pressing block (1202) and a return spring (1203). The connecting frames (1201) are symmetrically fixed on the two printing machines (1102). The pressing blocks (1202) are slidably installed on the side of the two connecting frames (1201) that are close to each other on the same side. A return spring (1203) is provided between the connection between the pressing block (1202) and the corresponding connecting frame (1201).

4. A bag-making machine for producing vest bags according to claim 3, characterized in that, Friction textures are provided on the side of the two pressing blocks (1202) that are close to each other on the same side.

5. A bag-making machine for producing vest bags according to claim 4, characterized in that, It also includes a collection basket (15), which is provided on the mounting base (1).

6. A bag-making machine for producing vest bags according to claim 5, characterized in that, It also includes guide rollers (16), and guide rollers (16) are symmetrically provided on the mounting base (1).

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