A device for producing a heat-cutting anti-explosion edge express bag

The cutting and sealing system driven by stepper motors and cylinders, combined with a convenient heat sealing knife replacement structure, solves the problems of low cutting and sealing efficiency and inconvenient heat sealing knife disassembly and assembly in express bag production equipment, achieving efficient sealing and convenient maintenance.

CN224476655UActive Publication Date: 2026-07-10GUANGZHOU SHENGHUOLING NEW MATERIALS CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGZHOU SHENGHUOLING NEW MATERIALS CO LTD
Filing Date
2025-06-11
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

Existing courier bag production equipment is inefficient in cutting and sealing edges, and it is not convenient to seal two adjacent sides of the courier bag at the same time. The heat sealing knife is inconvenient to disassemble and assemble, which affects sealing efficiency and maintenance.

Method used

The cutting and heat-sealing system, driven by a stepper motor and combined with a cylinder-driven conveyor, enables continuous cutting and sealing of express bags. The heat-sealing blade can be easily replaced through limit blocks and spring structures, improving the ease of assembly and disassembly.

Benefits of technology

It enables efficient cutting, sealing, and output of express bags, improves sealing efficiency, simplifies the disassembly and maintenance process of the heat sealing knife, and enhances production efficiency and convenience.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of hot cutting anti-explosion edge express bag production devices, including supporting table and cutting table, the top of supporting table is equipped with cutting table, the symmetrical mounting of integrated board is installed on the side wall of the supporting table of cutting table side, the side of the integrated board is all provided with stepper motor, the output end of the stepper motor is all equipped with driving shaft, the surface of the driving shaft is all provided with swing arm, the end of swing arm away from driving shaft is all provided with linkage rod, the end of linkage rod close to swing arm is all provided with movable shaft, and linkage rod is movably connected with swing arm by movable shaft. The utility model not only realizes to cut and edge seal express bag in turn and to output express bag cut and edge seal in turn, which facilitates to edge seal and quickly disassemble, maintain and maintain the hot sealing knife for the two sides of express bag adjacent, and improves the efficiency of express bag edge sealing and the convenience of hot sealing knife disassembly replacement.
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Description

Technical Field

[0001] This utility model relates to the field of express delivery bag production technology, specifically to a production device for express delivery bags with heat-cut explosion-proof edges. Background Technology

[0002] Express delivery bags are bags specifically designed for packaging documents, invoices, materials, and goods used in the express delivery industry. Polyethylene plastic express delivery bags are commonly used due to their low cost, ease of use, and good waterproof performance. During express delivery production, these bags require heat-sealing. Traditional sealing methods often involve manual heat-sealing, which is inefficient. Furthermore, traditional heat-sealing blades are typically bolt-mounted, making disassembly inconvenient when replacement is needed. To address this issue, a heat-sealing explosion-proof edge-protecting express delivery bag production device is proposed.

[0003] For example, the plastic heat-sealing device for producing express bags disclosed in the authorization announcement number CN216001628U includes a workbench, a roller is movably sleeved on the right end of the top of the workbench, a support frame is fixedly connected to the middle of the top of the workbench, a telescopic cylinder is fixedly sleeved on the top of the support frame, a horizontal plate is fixedly connected to the bottom of the telescopic cylinder, and a cutter is fixedly connected to the bottom of the horizontal plate.

[0004] Although it achieves the combined use of pressure block and heating wire, the pressure block presses the express bag down, and the heating wire melts two sealing strips on the express bag to facilitate sealing the express bag. Through the combined use of cutter and blade groove, the telescopic cylinder pushes the horizontal plate down to make the cutter cut the express bag, which facilitates the cutting of the express bag and cuts the express bag from the two sealing strips.

[0005] However, the existing production equipment does not solve the problems of not being able to cut and seal the express bags sequentially, nor can it output the cut and sealed express bags sequentially. It also does not facilitate sealing two adjacent sides of the express bag at the same time, nor can it facilitate the quick disassembly and maintenance of the heat sealing knife. This affects the efficiency of sealing the express bags and the convenience of disassembling and replacing the heat sealing knife. Utility Model Content

[0006] The purpose of this utility model is to provide a production device for heat-cut explosion-proof express bags, so as to solve the problems mentioned in the background art, which are not convenient for sequentially cutting and sealing express bags and sequentially outputting the cut and sealed express bags, and are not conducive to simultaneously sealing two adjacent sides of the express bag and quickly disassembling and maintaining the heat sealing knife, thus affecting the efficiency of sealing express bags and the convenience of disassembling and replacing the heat sealing knife.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a production device for heat-cut explosion-proof express bags, comprising a support platform and a cutting platform. The cutting platform is installed at the top of the support platform. Integrated plates are symmetrically installed on the side wall of the support platform on one side of the cutting platform. A stepper motor is provided on one side of each integrated plate. A drive shaft is installed at the output end of each stepper motor. A swing arm is provided on the surface of each drive shaft. A connecting rod is provided at the end of each swing arm away from the drive shaft. A movable shaft is provided at the end of each connecting rod near the swing arm, and the connecting rod is movably connected to the swing arm through the movable shaft. A reciprocating rod is provided at the end of each connecting rod away from the swing arm. A linkage shaft is provided at the end of each reciprocating rod near the connecting rod, and the connecting rod is movably connected to the reciprocating rod through the linkage shaft. A limit block is provided on the other side of each integrated plate, and the reciprocating rod is slidably connected to the limit block. A movable plate is provided above the cutting platform, and the movable plate is connected to the reciprocating rod.

[0008] Preferably, a cutting blade is installed at the center of the bottom of the movable plate, and three sets of equally spaced plug-in sockets are installed on the bottom of the movable plate on both sides of the cutting blade.

[0009] Preferably, each of the plug-in sockets has a slidably arranged plug-in buckle inside, and two sets of heat sealing blades are arranged below the moving plate, with the heat sealing blades respectively connected to three sets of plug-in buckles in the same row.

[0010] Preferably, each of the plug-in sockets is provided with a limiting ring on its side wall, and each limiting ring is provided with a limiting post inside, and the limiting post is slidably connected to the limiting ring.

[0011] Preferably, each of the limiting posts is provided with a spring, and the two ends of the spring are respectively connected to the limiting post and the limiting ring.

[0012] Preferably, a belt conveyor is provided above the support platform, and hinge shafts are symmetrically arranged on the side wall of the belt conveyor, and the belt conveyor is movably connected to the support platform through the hinge shafts.

[0013] Preferably, cylinders are symmetrically and movably installed on the side wall of the support platform, and each cylinder has a push arm installed at its output end.

[0014] Preferably, each push arm is provided with a connecting shaft at the end near the cylinder, and the push arm is movably connected to the belt conveyor through the connecting shaft.

[0015] Compared with the prior art, the beneficial effects of this utility model are: the production device not only realizes the sequential cutting and sealing of express bags and the sequential output of the cut and sealed express bags, but also facilitates the simultaneous sealing of two adjacent sides of the express bag and the quick disassembly, assembly, maintenance and upkeep of the heat sealing knife, and improves the efficiency of sealing express bags and the convenience of disassembly and replacement of heat sealing knives.

[0016] (1) A stepper motor drives the drive shaft to rotate, which in turn drives the swing arm to rotate. The swing arm, through a movable shaft, drives the connecting rod to reciprocate. Under the sliding cooperation between the reciprocating rod and the limit block, the connecting rod, through a linkage shaft, drives the reciprocating rod to slide back and forth inside the limit block. The reciprocating rod drives the moving plate to move up and down, which in turn drives the heat sealing knife and the cutting knife to move up and down. The cutting knife cuts the express bag. At the same time as cutting, two sets of heat sealing knives seal the edges of the express bag. The heat sealing knife is equipped with a heating wire inside, which can heat and melt the express bag to make it stick together. The cut-off express bag is located on the right side of the moving plate. The cylinder drives the push arm to move, and the push arm drives the belt conveyor to rotate around the hinge shaft through the connecting shaft, so that one end of the belt conveyor contacts the express bag. The belt conveyor moves the express bag away from the moving plate. With the cooperation of the stepper motor and the cylinder, the express bag is cut, sealed and output continuously. This realizes the sequential cutting and sealing of the express bag, facilitates the simultaneous sealing of two adjacent sides of the express bag, and facilitates the sequential output of the cut and sealed express bags, thus improving the sealing efficiency.

[0017] (2) When the heat sealing knife needs maintenance, pull out the limiting post. The limiting post slides inside the limiting ring. The limiting post squeezes the spring to pull the limiting post out from the inside of the plug buckle. Then pull the heat sealing knife down. The heat sealing knife will drive the plug buckle to be pulled out from the inside of the plug seat. After the heat sealing knife is maintained, insert the plug buckle back into the plug seat. The heat sealing knife can be quickly installed and reset. This realizes quick disassembly and replacement of the heat sealing knife, which facilitates the maintenance of the heat sealing knife and improves the convenience of disassembly and replacement of the heat sealing knife. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a three-dimensional perspective structural diagram of the movable plate of this utility model;

[0020] Figure 3 This is a three-dimensional structural diagram of the integrated board of this utility model;

[0021] Figure 4 This is a front view cross-sectional structural diagram of the movable plate of this utility model;

[0022] Figure 5 This is a three-dimensional perspective structural diagram of the connector of this utility model.

[0023] In the diagram: 1. Support platform; 2. Cylinder; 3. Push arm; 4. Connecting shaft; 5. Hinge shaft; 6. Belt conveyor; 7. Integrated board; 8. Cutting table; 9. Moving plate; 10. Reciprocating rod; 11. Plug-in socket; 12. Heat sealing knife; 13. Stepper motor; 14. Drive shaft; 15. Swing arm; 16. Movable shaft; 17. Linkage rod; 18. Linkage shaft; 19. Limit block; 20. Cutting knife; 21. Plug-in buckle; 22. Spring; 23. Limit post; 24. Limit ring. Detailed Implementation

[0024] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0025] Please see Figure 1-5 This utility model provides an embodiment of a production device for heat-cut explosion-proof express bags, including a support platform 1 and a cutting table 8. The cutting table 8 is installed on the top of the support platform 1. Integrated plates 7 are symmetrically installed on the side wall of the support platform 1 on one side of the cutting table 8. Each integrated plate 7 is provided with a stepper motor 13 on one side, which serves as a power drive. Each stepper motor 13 has a drive shaft 14 installed at its output end. Each drive shaft 14 has a swing arm 15 on its surface. Each swing arm 15 has a connecting rod 17 at its end away from the drive shaft 14. A movable shaft 16 is provided at one end near the swing arm 15, and a connecting rod 17 is movably connected to the swing arm 15 through the movable shaft 16. A reciprocating rod 10 is provided at the end of the connecting rod 17 away from the swing arm 15. A linkage shaft 18 is provided at the end of the reciprocating rod 10 near the connecting rod 17, and the connecting rod 17 is movably connected to the reciprocating rod 10 through the linkage shaft 18. A limit block 19 is provided on the other side of the integrated plate 7, and the reciprocating rod 10 is slidably connected to the limit block 19. A movable plate 9 is provided above the cutting table 8, and the movable plate 9 is connected to the reciprocating rod 10.

[0026] The express bags are fed from left to right. When the continuous express bags move to below the moving plate 9, the stepper motor 13 is activated, which drives the drive shaft 14 to rotate. The drive shaft 14 drives the swing arm 15 to rotate, and the swing arm 15 drives the connecting rod 17 to swing back and forth via the movable shaft 16. Under the sliding cooperation between the reciprocating rod 10 and the limiting block 19, the connecting rod 17 drives the reciprocating rod 10 to slide back and forth inside the limiting block 19 via the linkage shaft 18. The reciprocating rod 10 drives the moving plate 9 to move up and down, and the moving plate 9 drives the heat sealing knife 12 and the cutting knife 20 to move up and down. The cutting knife 20 cuts off the express bags. At the same time as cutting, the two sets of heat sealing knives 12 seal the edges of the express bags. The heat sealing knife 12 is designed with... Equipped with heating wires, the express bags are heated and melted to bond them together. The cut express bags are located on the right side of the moving plate 9. At this time, the cylinder 2 is opened, which drives the push arm 3 to move. The push arm 3 drives the belt conveyor 6 to rotate around the hinge shaft 5 via the connecting shaft 4, so that one end of the belt conveyor 6 contacts the express bag. The belt conveyor 6 is opened, and the belt conveyor 6 drives the express bag to move away from the moving plate 9. With the cooperation of the stepper motor 13 and the cylinder 2, the express bags are cut, sealed, and output in a continuous sequence. This realizes the sequential cutting and sealing of the express bags, facilitates the simultaneous sealing of two adjacent sides of the express bags, and facilitates the sequential output of the cut and sealed express bags, thus improving the sealing efficiency.

[0027] A cutting blade 20 is installed at the center of the bottom of the movable plate 9, and three sets of equally spaced plug-in sockets 11 are installed at the bottom of the movable plate 9 on both sides of the cutting blade 20.

[0028] The plug-in base 11 is slidably provided with plug-in buckles 21 inside. Two sets of heat sealing knives 12 are provided below the moving plate 9, and the heat sealing knives 12 are respectively connected to three sets of plug-in buckles 21 in the same row. Limiting rings 24 are provided on the side walls of the plug-in base 11. Limiting posts 23 are provided inside the limiting rings 24, and the limiting posts 23 are slidably connected to the limiting rings 24.

[0029] Springs 22 are provided on the surface of each limiting post 23, and the two ends of the springs 22 are connected to the limiting post 23 and the limiting ring 24 respectively. A belt conveyor 6 is provided above the support platform 1. Hinges 5 are symmetrically provided on the side wall of the belt conveyor 6, and the belt conveyor 6 is movably connected to the support platform 1 through the hinges 5.

[0030] Cylinders 2 are symmetrically and movably installed on the side wall of the support platform 1. Cylinders 2 serve as power drives. Push arms 3 are installed at the output end of each cylinder 2. A connecting shaft 4 is provided at the end of each push arm 3 near the cylinder 2. The push arm 3 is movably connected to the belt conveyor 6 through the connecting shaft 4.

[0031] When maintenance is required on the heat sealing knife 12, pull out the limiting post 23. The limiting post 23 slides inside the limiting ring 24, and the limiting post 23 compresses the spring 22 to pull the limiting post 23 out from inside the plug buckle 21. Then pull the heat sealing knife 12 downward, and the heat sealing knife 12 will drive the plug buckle 21 out from inside the plug seat 11. After maintenance is completed on the heat sealing knife 12, reinsert the plug buckle 21 into the plug seat 11 to quickly install and reset the heat sealing knife 12. This enables quick disassembly and replacement of the heat sealing knife, facilitates maintenance of the heat sealing knife, and improves the convenience of disassembly and replacement of the heat sealing knife.

[0032] Working principle: The direction of the express bags input is from left to right. When the continuous express bags move to the bottom of the moving plate 9, the stepper motor 13 drives the drive shaft 14 to rotate. The drive shaft 14 drives the swing arm 15 to rotate. The swing arm 15 drives the connecting rod 17 to swing back and forth through the movable shaft 16. Under the sliding cooperation between the reciprocating rod 10 and the limit block 19, the connecting rod 17 drives the reciprocating rod 10 to slide back and forth inside the limit block 19 through the linkage shaft 18. The reciprocating rod 10 drives the moving plate 9 to move up and down. The moving plate 9 drives the heat sealing knife 12 and the cutting knife 20 to move up and down. The cutting knife 20 cuts off the express bags. At the same time as cutting, the two sets of heat sealing knives 12 seal the edges of the express bags. The heat sealing knife 12 is equipped with an electric heating wire, which can heat and melt the express bags to make them stick together. The cut express bags are located on the right side of the moving plate 9. The cylinder 2 drives the push arm 3 to move. The belt conveyor 6 is driven by the connecting shaft 4 to rotate around the hinge shaft 5, so that one end of the belt conveyor 6 contacts the express bag. The belt conveyor 6 is turned on, and the express bag is moved away from the moving plate 9. With the cooperation of the stepper motor 13 and the cylinder 2, the express bag is continuously cut, sealed and output. If the heat sealing knife 12 needs to be maintained, the limit post 23 is pulled out. The limit post 23 slides inside the limit ring 24. The limit post 23 squeezes the spring 22 to pull the limit post 23 out from the inside of the plug buckle 21. Then, the heat sealing knife 12 is pulled down, and the heat sealing knife 12 drives the plug buckle 21 to be pulled out from the inside of the plug seat 11. After the heat sealing knife 12 is maintained, the plug buckle 21 is reinserted into the plug seat 11 to quickly install and reset the heat sealing knife 12. The above is the complete usage of the heat-cut explosion-proof express bag production device.

[0033] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any indirect modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A production device for heat-cut explosion-proof express bags, comprising a support table (1) and a cutting table (8), characterized in that: A cutting table (8) is installed at the top of the support platform (1). An integrated plate (7) is symmetrically installed on the side wall of the support platform (1) on one side of the cutting table (8). A stepper motor (13) is provided on one side of each integrated plate (7). A drive shaft (14) is installed at the output end of each stepper motor (13). A swing arm (15) is provided on the surface of each drive shaft (14). A connecting rod (17) is provided at the end of each swing arm (15) away from the drive shaft (14). A movable shaft (16) is provided at the end of each connecting rod (17) near the swing arm (15). The connecting rod (17) passes through... The connecting rod (17) is movably connected to the swing arm (15) via the movable shaft (16). A reciprocating rod (10) is provided at the end of the connecting rod (17) away from the swing arm (15). A linkage shaft (18) is provided at the end of the reciprocating rod (10) near the connecting rod (17). The connecting rod (17) is movably connected to the reciprocating rod (10) via the linkage shaft (18). A limit block (19) is provided on the other side of the integrated plate (7). The reciprocating rod (10) is slidably connected to the limit block (19). A movable plate (9) is provided above the cutting table (8). The movable plate (9) is connected to the reciprocating rod (10).

2. The production device for a heat-sealed explosion-proof express bag according to claim 1, characterized in that: A cutting blade (20) is installed at the center of the bottom of the movable plate (9), and three sets of equally spaced plug-in sockets (11) are installed at the bottom of the movable plate (9) on both sides of the cutting blade (20).

3. The production device for heat-cut explosion-proof express bags according to claim 2, characterized in that: The plug-in socket (11) is slidably provided with plug-in buckles (21) inside. Two sets of heat sealing knives (12) are provided below the moving plate (9), and the heat sealing knives (12) are respectively connected to three sets of plug-in buckles (21) in the same row.

4. The production device for a heat-cut explosion-proof express bag according to claim 2, characterized in that: Each of the plug-in sockets (11) is provided with a limiting ring (24) on its side wall. Each of the limiting rings (24) is provided with a limiting post (23) inside, and the limiting post (23) is slidably connected to the limiting ring (24).

5. The production device for a heat-cut explosion-proof express bag according to claim 4, characterized in that: The surface of each limiting post (23) is provided with a spring (22), and the two ends of the spring (22) are respectively connected to the limiting post (23) and the limiting ring (24).

6. The production device for a heat-sealed explosion-proof express bag according to claim 1, characterized in that: A belt conveyor (6) is provided above the support platform (1). A hinge shaft (5) is symmetrically provided on the side wall of the belt conveyor (6), and the belt conveyor (6) is movably connected to the support platform (1) through the hinge shaft (5).

7. The production device for heat-cut explosion-proof express bags according to claim 1, characterized in that: Cylinders (2) are symmetrically and movably installed on the side wall of the support platform (1), and push arms (3) are installed at the output end of each cylinder (2).

8. The production device for a heat-cut explosion-proof express bag according to claim 7, characterized in that: Each push arm (3) is provided with a connecting shaft (4) at one end near the cylinder (2), and the push arm (3) is movably connected to the belt conveyor (6) through the connecting shaft (4).