Hot cutting device for producing waistcoat bag

Abstract

The utility model relates to the technical field of plastic processing equipment discloses hot cutting device for waistcoat bag production, including the bottom plate, the top of bottom plate all is connected with two mounting plate no.

Description

Technical Field

[0001] This utility model relates to the field of plastic processing equipment technology, and in particular to a hot cutting device for the production of vest bags. Background Technology

[0002] The heat-cutting device for vest bag production is a key piece of equipment in the plastic packaging industry specifically designed for processing vest bags. Its core function is to process rolls of plastic film into finished bags with specific dimensions and sealed edges through integrated "heat sealing" and "cutting" operations. It is mainly used for the production of vest bags in scenarios such as food retail, supermarket shopping, and daily necessities packaging, and can also be used for the processing of small plastic bags in the industrial packaging field.

[0003] The core working principle of the hot-cutting device used in vest bag production is to use high-temperature heating of the cutting blade, causing the plastic film to melt instantly upon contact with the blade, simultaneously completing the cutting and sealing. Through the principle of "thermal melting cutting," the hot-cutting device combines the physical cutting of the plastic film with the heat-sealing process, achieving efficient and high-precision forming of vest bags in industrial production. Its core advantage lies in using temperature control to achieve edge sealing, avoiding the defects of cold-cutting processes, making it particularly suitable for packaging scenarios with high requirements for sealing and aesthetics.

[0004] In existing technologies, the reason why hot-cutting devices are used in vest bag production equipment is that these devices can heat the blades to a specific temperature, simultaneously melting and bonding the film at the cut edge while cutting the plastic film, thus achieving simultaneous "cutting and sealing." This method not only avoids the burrs and cracking problems caused by cold cutting, but also ensures the accuracy of fixed-length cutting of the bag body and the edge sealing strength by precisely controlling the blade temperature and cutting speed. Furthermore, in conjunction with a hot-cutting die for the handle hole, bag body forming and handle processing can be completed at the same station, significantly improving production efficiency and meeting the dual demands of quality and capacity for industrial mass production. Therefore, a hot-cutting device for vest bag production is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a hot-cutting device for the production of vest bags, which aims to improve the problems of uneven edge sealing strength, limited production efficiency, and insufficient cutting accuracy and consistency in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A hot-cutting device for producing vest bags includes a base plate. Two mounting plates are fixedly connected to the top of each base plate. A square box is fixedly connected to the top of each mounting plate. A motor is fixedly connected inside each square box. An elliptical turntable is fixedly connected to the drive end of each motor. A fixing plate is fixed to the inner wall of each square box. Two guide plates are fixedly connected to the front end of each fixing plate. Connecting rods are slidably connected to the inner walls of each guide plate. A sliding plate is fixedly connected to the adjacent side of each connecting rod. A connecting rod is fixedly connected to the rear end of each sliding plate. Connecting rods are fixedly connected to the left and right sides of each connecting rod. Mounting plates are fixedly connected to the front ends of each connecting rod. Two springs are fixedly connected to the bottom end of each sliding plate. A disassembly assembly for easy disassembly is installed on the outer wall of the mounting plate.

[0008] As a further description of the above technical solution:

[0009] The disassembly assembly includes two square boxes 2. The outer walls of the two square boxes 2 are fixedly connected to the front and rear sides of the mounting plate 2. The interior of each of the two square boxes 2 is fixedly connected to a guide plate 2. The outer walls of each of the two square boxes 2 are slidably connected to a button. The bottom of each of the two buttons is fixedly connected to a fixing block 1. The bottom of each fixing block 1 is fixedly connected to two springs 1. The top of each of the mounting plate 2 is fixedly connected to two guide plates 3. The interior of each of the mounting plate 2 is fixedly connected to two guide rods. The outer walls of the guide rods are slidably connected to the mounting plate 3. The top of each of the mounting plate 3 is fixedly connected to two fixing blocks 2. The interior of the mounting plate 2 is fixedly connected to a fixing plate 2. The front and rear ends of the mounting plate 3 are fixedly connected to fixing blocks 3. The left ends of each of the two fixing blocks 3 are fixedly connected to a buckle. The outer wall of the fixing plate 2 is fixedly connected to a blade.

[0010] As a further description of the above technical solution:

[0011] A mounting bracket is fixedly connected to the top of each of the two mounting plates, and a heating plate is slidably connected inside the mounting bracket;

[0012] As a further description of the above technical solution:

[0013] The outer wall of the elliptical turntable contacts the top of the slide plate, and the bottom ends of the two springs are fixedly connected to the inner wall of the square box.

[0014] As a further description of the above technical solution:

[0015] The outer wall of the connecting rod three is slidably connected to the inside of the square box one, and the outer wall of the connecting rod three is slidably connected to the inside of the fixing plate one;

[0016] As a further description of the above technical solution:

[0017] The outer wall of the fixing block 2 is slidably connected to the inner wall of the guide plate 3, and the outer wall of the fixing plate 2 is slidably connected to the inner wall of the mounting plate 3.

[0018] As a further description of the above technical solution:

[0019] The outer wall of the fixed block one is slidably connected to the inner wall of the guide plate two, and the bottom ends of the two springs one are fixedly connected to the inner wall of the square box two.

[0020] As a further description of the above technical solution:

[0021] The outer wall of the buckle engages with the inner wall of the fixing block one, and the inner wall of the fixing block one has a slot.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, the motor inside the square box drives the sliding plate to slide along the inner wall of the guide plate. As the sliding plate moves, it moves connecting rods three and four. The movement of connecting rod four, in turn, moves the mounting plate two and the internal blades. With a single blade, all the pressure is concentrated on a single cutting edge, easily leading to rapid wear or breakage. With double blades, the cutting force is distributed between two blades, reducing the force on each blade and extending the blade replacement cycle. Double blades can simultaneously cut two bags, ensuring uniform dimensions for the same batch of products. When producing vests requiring a symmetrical structure, double blades can precisely ensure consistent cutting positions on both sides, avoiding positioning deviations caused by step-by-step cutting with a single blade.

[0024] 2. In this utility model, pressing the button moves the fixing block 1, removing the clip from the slot inside the fixing block 16, and moving the mounting plate 21 to achieve the disassembly or installation of the blade. The detachable blade is fixed by standardized interfaces such as bolts and slots. Replacement does not require professional tools or complex adjustments, and a single person can complete the blade disassembly and installation. The disassembly and installation process of the detachable blade is achieved through structures such as safety locks and protective covers to avoid contact with the blade with bare hands. When replacing the blade, the power supply to the equipment must be disconnected and the protective cover unlocked before the blade can be disassembled. Compared with the exposed design of fixed blades, the risk of operators being cut is reduced. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of the heat-cutting device for producing vest bags according to the present invention.

[0026] Figure 2 This is a schematic diagram of the base plate of the hot-cutting device for producing vest bags proposed in this utility model.

[0027] Figure 3 This is a schematic diagram of the square box of the hot-cutting device for producing vest bags proposed in this utility model.

[0028] Figure 4 This is a schematic diagram of the mounting plate 2 of the hot-cutting device for producing vest bags proposed in this utility model;

[0029] Figure 5 This is a schematic diagram of the button structure of the heat-cutting device for producing vest bags proposed in this utility model.

[0030] Legend:

[0031] 1. Base plate; 2. Mounting plate one; 3. Square box one; 4. Motor; 5. Oval turntable; 6. Fixing plate one; 7. Guide plate one; 8. Connecting rod two; 9. Slide plate; 10. Connecting rod three; 11. Connecting rod four; 12. Mounting plate two; 13. Square box two; 14. Guide plate two; 15. Button; 16. Fixing block one; 17. Spring one; 18. Guide plate three; 19. Guide rod; 20. Fixing block two; 21. Mounting plate three; 22. Fixing plate two; 23. Fixing block three; 24. Buckle; 25. Blade; 26. Mounting bracket; 27. Heating plate; 28. Spring two. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Reference Figures 1 to 3 This utility model provides an embodiment of a heat-cutting device for producing vest bags, including a base plate 1. The base plate 1 serves as the basic support structure for the entire heat-cutting device, providing a stable mounting surface for all other components. Two mounting plates 2 are fixedly connected to the top of the base plate 1, providing a vertical mounting base for a square box 3, ensuring accurate installation of internal components. The tops of the two mounting plates 2 are also fixedly connected to the square box 3, providing a mounting base for the square box 3 and ensuring the stability of the internal components. Motors 4 are fixedly connected inside the two square boxes 3, providing stability for the motors 4 and preventing shaking during operation, which could affect subsequent components. An elliptical turntable 5 is fixedly connected to the drive end of the motor 4, serving as the drive source and driving the elliptical turntable 5 to rotate, providing power transmission for subsequent components.

[0034] The inner wall of the square box 3 is fixed with a fixing plate 6, which provides the mounting base and stability for the fixing plate 6, ensuring the stability of subsequent components when moving inside. Two guide plates 7 are fixedly connected to the front end of each fixing plate 6, providing stability for the guide plates 7 and further ensuring the stability of subsequent components when operating inside. Connecting rods 8 are slidably connected to the inner walls of both guide plates 7, connecting the slide plate 9 to the guide plates 7, transmitting the movement of the slide plate 9, and ensuring the stability of the slide plate 9's movement. The slide plate 9 is fixedly connected to the adjacent side of the two connecting rods 8, providing limiting and guiding functions when the slide plate 9 moves. To prevent deviation during operation, a connecting rod 3 10 is fixedly connected to the rear end of the slide plate 9. When the slide plate 9 moves, it drives the connecting rod 3 10 to move as well. Connecting rods 4 11 are fixedly connected to both sides of the connecting rod 3 10. When the connecting rod 3 10 moves, it drives the connecting rods 4 11 to move as well. Mounting plate 2 12 is fixedly connected to the front end of the two connecting rods 4 11. The connecting rods 4 11 provide a mounting base for mounting plate 2 12 and provide stability for the internal components. Two springs 2 28 are fixedly connected to the bottom end of the slide plate 9. Springs 2 28 play the role of resetting and buffering the slide plate 9. The outer wall of mounting plate 2 12 is equipped with a disassembly component that is easy to disassemble.

[0035] Reference Figure 2 and Figure 3 The disassembly assembly includes two square boxes 13. These boxes provide a mounting base and protection for the internal components. The outer walls of the two square boxes 13 are fixedly connected to the front and rear sides of a mounting plate 12. The mounting plate 12 provides mounting space and stability for the square boxes 13, preventing shaking during internal component operation. Guide plates 14 are fixedly connected inside each of the two square boxes 13, providing stability to the guide plates 14 and preventing shaking during subsequent component operation. The outer walls of the two square boxes 13 are slidably connected. There is a button 15. The square box 13 provides a guide for the button 15. The bottom of each button 15 is fixedly connected to a fixing block 16. When the button 15 moves, it drives the fixing block 16 to move. The bottom of each fixing block 16 is fixedly connected to two springs 17. The springs 17 provide a reset and buffer function for the fixing block 16 to ensure the stability of operation. The top of each mounting plate 12 is fixedly connected to two guide plates 18. The mounting plate 12 provides installation space for the guide plates 18 to ensure the stable operation of subsequent components.

[0036] Mounting plate 2 12 has two guide rods 19 fixedly connected inside. Mounting plate 2 12 provides installation space for the guide rods 19, ensuring the accuracy of subsequent component operation. Mounting plate 3 21 is slidably connected to the outer wall of the guide rods 19. The guide rods 19 provide guidance for mounting plate 3 21, ensuring accuracy during component disassembly and installation. Two fixing blocks 20 are fixedly connected to the top of mounting plate 3 21. Mounting plate 3 21 provides installation space for the fixing blocks 20 and cooperates with guide plate 3 18 to provide stability. The internal fixed connections of mounting plate 2 12... There is a fixed plate 22, and the mounting plate 212 provides installation space for the fixed plate 22 and provides stability for the subsequent installation of the blade 25. The front and rear ends of the mounting plate 321 are fixedly connected to the fixing blocks 33. The mounting plate 321 provides installation space for the fixing blocks 333 and provides them with stability. The left ends of the two fixing blocks 333 are fixedly connected to the buckles 24. The fixing blocks 323 provide the mounting base for the buckles 24 and ensure the stability of the disassembly structure. The blade 25 is fixedly connected to the outer wall of the fixed plate 22. The fixed plate 22 provides the component movement to fix the blade 25.

[0037] Reference Figures 3 to 5 Mounting brackets 26 are fixedly connected to the top of the two mounting plates 2, providing a mounting reference surface for the heating plate 27 and ensuring the stability of the overall structure. The heating plate 27 is slidably connected inside the mounting brackets 26, which limit the movement trajectory of the heating plate 27 to ensure that the heating position is accurately aligned with the plastic bag. The outer wall of the elliptical turntable 5 is in contact with the top of the slide plate 9. Driven by the motor 4, the slide plate 9 is driven to perform reciprocating linear motion. The bottom ends of the two springs 28 are fixedly connected to the square... The inner wall of box 13, spring 28 provides elastic restoring force for the internal mechanism of square box 13. When the external driving force disappears, the elastic potential energy pushes the component to reset, realizing the reciprocating motion of the mechanism. The outer wall of connecting rod 310 is slidably connected to the inside of square box 13. Square box 13 forms a closed cavity for the transmission mechanism, providing guidance and protection. The internal sliding connection of connecting rod 310 limits its movement trajectory to ensure linear motion. The outer wall of connecting rod 310 is slidably connected to the inside of fixed plate 16. Fixed plate 16 assists in guiding the movement of connecting rod 310 and enhances transmission stability.

[0038] The outer wall of fixing block 20 is slidably connected to the inner wall of guide plate 3 18. The outer wall of fixing block 20 slides on the inner wall of guide plate 3 18, providing guidance and ensuring stability during operation. The outer wall of fixing plate 22 is slidably connected to the inner wall of mounting plate 3 21. The outer wall of fixing plate 22 slides on the inner wall of mounting plate 3 21, ensuring the stability of fixing blade 25. The outer wall of fixing block 16 is slidably connected to the inner wall of guide plate 2 14. Guide plate 2 14 provides guidance for fixing block 16, ensuring stability during operation. The bottom ends of the two springs 17 are fixedly connected to the inner wall of the square box 13. The square box 13 provides installation space and stability for the springs 17, ensuring the stability of the springs 17 when resetting the fixed block 16. The outer wall of the buckle 24 engages with the inner wall of the fixed block 16. The buckle 24 engages with the slot opened inside the fixed block 16 through the operation of the components. The slot is provided on the inner wall of the fixed block 16. The slot design provides pre-tightening force to ensure that the buckle 24 is reliably connected to the fixed block 16 in the non-operating state.

[0039] Working principle: When cutting a plastic bag, the motor 4 inside the square box 3 is started. The rotation of the motor 4 drives the elliptical turntable 5 fixed at the drive end to rotate. When the elliptical turntable 5 rotates, it contacts the slide plate 9, pushing the slide plate 9 to slide at the front end of the fixed plate 6. When the slide plate 9 moves, the outer wall of the connecting rod 8 on both sides of the slide plate 9 slides on the inner wall of the guide plate 7, ensuring the stability and guiding function of the slide plate 9. The two springs 28 connected to the bottom of the slide plate 9 provide buffering and reset functions when the slide plate 9 moves, forming a reciprocating motion. When the slide plate 9 moves, it drives the connecting rod 10 and the connecting rod 11 fixed at both ends of the connecting rod 10 to move. When the connecting rod 11 moves, it drives the mounting plate 12 and the mounting plate 21 to move, which drives the internal blade 25 to reciprocate, achieving the effect of synchronous cutting by the two blades 25.

[0040] When the button 15, which is slidably connected to the outer wall of the square box 13, is pressed, the button 15 causes the bottom fixing block 16 to move downward and compress the spring 17 fixed to the inner wall of the square box 13. The fixing block 16 moves along the inner wall of the guide plate 14, which provides guidance for the fixing block 16. After the button 15 causes the fixing block 16 to press down, the buckle 24 moves in the slot opened in the inner wall of the fixing block 16, causing the mounting plate 21 to move along the guide rod 1. The outer wall of 9 is moved, and the fixing plate 22 inside the mounting plate 21 is separated from the mounting plate 3. At this time, the blade 25 can be taken out. When installing the blade 25, align the slot of the blade 25 with the outer wall of the fixing plate 22 and fix it. Press the button 15 to insert the buckle 24 into the slot of the inner wall of the fixing block 16, and then release the button 15 to reset the spring 17 at the bottom of the fixing block 16, so that the slot and the buckle 24 are engaged to achieve the fixing effect.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A hot-cutting device for producing vest bags, comprising a base plate (1), characterized in that: The top of the base plate (1) is fixedly connected to two mounting plates (2), the top of the two mounting plates (2) is fixedly connected to a square box (3), the inside of the two square boxes (3) is fixedly connected to a motor (4), the drive end of the motor (4) is fixedly connected to an elliptical turntable (5), the inner wall of the square box (3) is fixedly connected to a fixing plate (6), the front end of the fixing plate (6) is fixedly connected to two guide plates (7), the inner wall of the two guide plates (7) is slidably connected to a connecting rod (8), the adjacent side of the two connecting rods (8) is fixedly connected to a sliding plate (9), the rear end of the sliding plate (9) is fixedly connected to a connecting rod (10), the left and right sides of the connecting rod (10) are fixedly connected to connecting rods (11), the front end of the two connecting rods (11) is fixedly connected to a mounting plate (12), the bottom end of the sliding plate (9) is fixedly connected to two springs (28), and the outer wall of the mounting plate (12) is equipped with a disassembly assembly for easy disassembly.

2. The hot-cutting device for producing vest bags according to claim 1, characterized in that: The disassembly assembly includes two square boxes (13). The outer walls of the two square boxes (13) are fixedly connected to the front and rear sides of the mounting plate (12). Guide plates (14) are fixedly connected inside each of the two square boxes (13). Buttons (15) are slidably connected to the outer walls of each of the two square boxes (13). Fixing blocks (16) are fixedly connected to the bottom of each of the two buttons (15). Two springs (17) are fixedly connected to the bottom of each fixing block (16). Two guide plates (18) are fixedly connected to the top of each mounting plate (12). 8) Two guide rods (19) are fixedly connected inside the second mounting plate (12). The outer wall of the guide rod (19) is slidably connected to the third mounting plate (21). Two fixing blocks (20) are fixedly connected to the top of the third mounting plate (21). The second mounting plate (22) is fixedly connected inside the second mounting plate (12). The front and rear ends of the third mounting plate (21) are fixedly connected to the third fixing blocks (23). The left ends of the two third fixing blocks (23) are fixedly connected to the buckles (24). The outer wall of the second mounting plate (22) is fixedly connected to the blade (25).

3. The hot-cutting device for producing vest bags according to claim 1, characterized in that: The top of the two mounting plates (2) is fixedly connected to a mounting bracket (26), and a heating plate (27) is slidably connected inside the mounting bracket (26).

4. The hot-cutting device for producing vest bags according to claim 1, characterized in that: The outer wall of the elliptical turntable (5) is in contact with the top of the slide plate (9), and the bottom ends of the two springs (28) are fixedly connected to the inner wall of the square box (3).

5. The hot-cutting device for producing vest bags according to claim 1, characterized in that: The outer wall of the connecting rod three (10) is slidably connected to the inside of the square box one (3), and the outer wall of the connecting rod three (10) is slidably connected to the inside of the fixing plate one (6).

6. The hot-cutting device for producing vest bags according to claim 2, characterized in that: The outer wall of the second fixing block (20) is slidably connected to the inner wall of the third guide plate (18), and the outer wall of the second fixing plate (22) is slidably connected to the inner wall of the third mounting plate (21).

7. The hot-cutting device for producing vest bags according to claim 2, characterized in that: The outer wall of the fixed block one (16) is slidably connected to the inner wall of the guide plate two (14), and the bottom ends of the two springs one (17) are fixedly connected to the inner wall of the square box two (13).

8. The hot-cutting device for producing vest bags according to claim 2, characterized in that: The outer wall of the buckle (24) engages with the inner wall of the fixing block (16), and the inner wall of the fixing block (16) has a slot.

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