A heat sealing apparatus for a bag making machine

Abstract

This utility model discloses a heat-sealing device for a bag-making machine, including a fixed frame. A feeding roller and an auxiliary roller are rotatably connected to the inner wall of the fixed frame. A liquid storage tank is fixedly connected to the back of the fixed frame, and an injection pipe is fixedly connected to the inner wall of the liquid storage tank. Coolant is injected into the liquid storage tank through the injection pipe. A traction component is activated to pull the film material to the left, and a heat-sealing mechanism is activated to perform heat-sealing on the film material. At the same time, a cooling mechanism is activated to lower the temperature of the coolant inside the liquid storage tank, and a stirring component is activated to stir the coolant to increase the cooling rate. The low temperature of the coolant is conducted to the film through a first temperature-conducting plate and a heat exchange plate, which can quickly cool the film. This achieves the goal of facilitating rapid cooling of the heat-sealed film material and avoids the problem that the film is easily deformed and damaged due to contact stress with the equipment after being heated, which would greatly reduce the stability of the heat-sealing process.

Description

Technical Field

[0001] This utility model relates to the field of bag making machine technology, and in particular to a heat sealing device for bag making machine. Background Technology

[0002] A bag-making machine is an automated packaging device that efficiently cuts and seals rolls of film into custom-sized plastic bags using heat sealing, cold cutting, or ultrasonic welding processes. Its modular design supports the production of various bag types, including vest bags, flat bags, and stand-up pouches.

[0003] During the production and processing of bag making machines, heat sealing equipment is usually required to heat seal the film raw materials. However, the existing heat sealing equipment lacks a cooling mechanism. When the film raw materials are heated, their deformation capacity will increase significantly. If the film raw materials are not cooled in time, they are prone to deformation or even breakage due to the stress of contact with the equipment, which greatly reduces the stability of the heat sealing process. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a heat sealing device for a bag making machine, which solves the aforementioned problems.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A heat-sealing device for a bag-making machine includes a fixed frame, a feeding roller rotatably connected to the inner wall of the fixed frame, an auxiliary roller rotatably connected to the inner wall of the fixed frame, a liquid storage tank fixedly connected to the back of the fixed frame, an injection pipe fixedly connected to the inner wall of the liquid storage tank, a first temperature guiding plate fixedly connected to the inner wall of the liquid storage tank, a heat exchange plate fixedly connected to the back of the first temperature guiding plate and fixedly connected to the inner wall of the fixed frame, a cooling mechanism provided inside the liquid storage tank, a stirring assembly provided on the top surface of the liquid storage tank, a heat-sealing mechanism provided inside the fixed frame, and a traction assembly provided on the front of the fixed frame.

[0006] Preferably, the refrigeration mechanism consists of a second temperature-conducting plate, a semiconductor refrigeration chip, a fan cover, and a cooling fan. The second temperature-conducting plate is fixedly connected to the inner wall of the liquid storage tank, the semiconductor refrigeration chip is fixedly connected to the inner wall of the second temperature-conducting plate, the fan cover is fixedly connected to the back of the liquid storage tank, and the cooling fan is fixedly connected to the inner wall of the fan cover.

[0007] Preferably, the stirring assembly consists of a servo motor, a fixed shaft, and a stirring paddle. The servo motor is fixedly connected to the top surface of the liquid storage tank, and the output end of the servo motor is rotatably connected to the inner wall of the liquid storage tank. The fixed shaft is fixedly connected to the output end of the servo motor, and the inner wall of the stirring paddle is fixedly connected to the surface of the fixed shaft.

[0008] Preferably, the heat sealing mechanism consists of a support frame, an electric push rod, a fixed frame, and a heating wheel. The support frame is fixedly connected to the inner wall of the fixed frame, the electric push rod is fixedly connected to the inner wall of the fixed frame, the fixed frame is fixedly connected to the output end of the electric push rod, and the heating wheel is rotatably connected to the inner wall of the fixed frame.

[0009] Preferably, the traction assembly consists of a drive motor, a traction roller, and a transmission gear. The drive motor is fixedly connected to the front of the fixed frame, and the output end of the drive motor is rotatably connected to the inner wall of the fixed frame. The traction roller is rotatably connected to the inner wall of the fixed frame, and the traction roller is fixedly connected to the output end of the drive motor. The inner wall of the transmission gear is fixedly connected to the surface of the traction roller.

[0010] Preferably, there are multiple heat exchange plates, and all of the multiple heat exchange plates are located inside the fixed frame.

[0011] Preferably, the first temperature-conducting plate is rectangular and made of aluminum metal.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: The heat sealing equipment of this bag making machine injects coolant into the storage tank through the injection pipe, starts the traction component to pull the film material to the left, starts the heat sealing mechanism to heat seal the film material, and at the same time starts the cooling mechanism to reduce the temperature of the coolant inside the storage tank. The stirring component starts to stir the coolant to increase the cooling speed. The low temperature of the coolant is conducted to the film through the first temperature guide plate and heat exchange plate, so that the film can be quickly cooled down. This achieves the goal of facilitating the rapid cooling down of the heat-sealed film material, avoiding the problem that the film is easily deformed and damaged due to contact stress with the equipment after being heated, which would greatly reduce the stability of the heat sealing process. Attached Figure Description

[0013] Figure 1 This is an isometric drawing of the structure of this utility model; Figure 2 This is a left sectional view of the structure of this utility model; Figure 3 This is an enlarged view of the structure at point A of this utility model; Figure 4 This is a cross-sectional view of the structure of this utility model; Figure 5 This is an enlarged view of structure B of this utility model.

[0014] In the diagram: 1. Fixed frame; 2. Feed roller; 3. Auxiliary roller; 4. Liquid storage tank; 5. Liquid injection pipe; 6. First temperature guide plate; 7. Heat exchange plate; 8. Second temperature guide plate; 9. Semiconductor cooling chip; 10. Fan hood; 11. Cooling fan; 12. Servo motor; 13. Fixed shaft; 14. Stirring paddle; 15. Support frame; 16. Electric push rod; 17. Fixed frame; 18. Heating wheel; 19. Drive motor; 20. Traction roller; 21. Transmission gear. Detailed Implementation

[0015] 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.

[0016] Example: Refer to Figures 1-5 A heat-sealing device for a bag-making machine includes a fixed frame 1, a feeding roller 2 rotatably connected to the inner wall of the fixed frame 1, an auxiliary roller 3 rotatably connected to the inner wall of the fixed frame 1, a liquid storage tank 4 fixedly connected to the back of the fixed frame 1, an injection pipe 5 fixedly connected to the inner wall of the liquid storage tank 4, and a first temperature-conducting plate 6 fixedly connected to the inner wall of the liquid storage tank 4. The first temperature-conducting plate 6 is rectangular and made of aluminum metal, which provides stronger heat conduction and facilitates rapid heat exchange and cooling. Multiple heat exchange plates 7 are fixedly connected to the back of the first temperature-conducting plate 6 and are fixedly connected to the inner wall of the fixed frame 1. These multiple heat exchange plates 7 are located inside the fixed frame 1 and are used to conduct low temperatures, improving the cooling efficiency of the film. A cooling mechanism is installed inside the liquid storage tank 4, consisting of a second temperature-conducting plate 8 and a semiconductor... The system comprises a cooling chip 9, a fan shroud 10, and a cooling fan 11. A second temperature-conducting plate 8 is fixedly connected to the inner wall of the liquid storage tank 4. The semiconductor cooling chip 9 is fixedly connected to the inner wall of the second temperature-conducting plate 8. The fan shroud 10 is fixedly connected to the back of the liquid storage tank 4. The cooling fan 11 is fixedly connected to the inner wall of the fan shroud 10. This system is used to reduce the temperature of the coolant and improve the cooling speed. A stirring assembly is provided on the top surface of the liquid storage tank 4. The stirring assembly consists of a servo motor 12, a fixed shaft 13, and a stirring paddle 14. The servo motor 12 is fixedly connected to the top surface of the liquid storage tank 4, and the output end of the servo motor 12 is rotatably connected to the inner wall of the liquid storage tank 4. The fixed shaft 13 is fixedly connected to the output end of the servo motor 12. The inner wall of the stirring paddle 14 is fixedly connected to the surface of the fixed shaft 13. This system is used to stir the coolant and improve the cooling speed. A heat-sealing mechanism is provided inside the fixed frame 1. A traction assembly is provided on the front of the fixed frame 1.

[0017] Specifically, the heat sealing mechanism consists of a support frame 15, an electric push rod 16, a fixed frame 17, and a heating wheel 18. The support frame 15 is fixedly connected to the inner wall of the fixed frame 1, the electric push rod 16 is fixedly connected to the inner wall of the fixed frame 1, the fixed frame 17 is fixedly connected to the output end of the electric push rod 16, and the heating wheel 18 is rotatably connected to the inner wall of the fixed frame 17. It is used to perform heat sealing on film raw materials, thereby improving heat sealing efficiency.

[0018] Specifically, the traction assembly consists of a drive motor 19, a traction roller 20, and a transmission gear 21. The drive motor 19 is fixedly connected to the front of the fixed frame 1, and the output end of the drive motor 19 is rotatably connected to the inner wall of the fixed frame 1. The traction roller 20 is rotatably connected to the inner wall of the fixed frame 1, and the traction roller 20 is fixedly connected to the output end of the drive motor 19. The inner wall of the transmission gear 21 is fixedly connected to the surface of the traction roller 20. It is used to traction the movement of the film raw material to facilitate continuous heat sealing processing.

[0019] In use: First, inject coolant into the storage tank 4 through the injection pipe 5. The traction film material is moved between multiple feed rollers 2, the surface of the auxiliary roller 3, above the support frame 15, and between multiple heat exchange plates 7, and then clamped and fixed between multiple traction rollers 20. Start the drive motor 19 to drive the traction rollers 20 and the transmission gears 21 to rotate. Through the meshing of multiple transmission gears 21, the multiple traction rollers 20 are driven to rotate relative to each other along the inner wall of the fixed frame 1, thus tractioning the film material to the left. Start the heating wheel 18 to generate heat, and start the electric push rod 16 to move through the fixed frame. 17 drives the heating wheel 18 to move downwards and contact the film, which can cooperate with the support frame 15 to perform heat sealing on the film material. At the same time, the semiconductor cooling chip 9 is activated to absorb and release heat. The heat absorption end of the semiconductor cooling chip 9 absorbs heat from the second temperature conducting plate 8 and the liquid storage tank 4, thereby reducing the temperature of the coolant. The servo motor 12 is activated to drive the fixed shaft 13 and the stirring paddle 14 to rotate, which can stir the coolant and increase the cooling speed. The low temperature of the coolant is conducted to the film through the first temperature conducting plate 6 and the heat exchange plate 7, which can quickly cool the film.

[0020] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A heat-sealing apparatus for a bag making machine comprising a fixed frame (1), characterized in that, The inner wall of the fixed frame (1) is rotatably connected to a feeding roller (2), the inner wall of the fixed frame (1) is rotatably connected to an auxiliary roller (3), the back of the fixed frame (1) is fixedly connected to a liquid storage tank (4), the inner wall of the liquid storage tank (4) is fixedly connected to an injection pipe (5), the inner wall of the liquid storage tank (4) is fixedly connected to a first temperature guide plate (6), the back of the first temperature guide plate (6) is fixedly connected to a heat exchange plate (7), and the heat exchange plate (7) is fixedly connected to the inner wall of the fixed frame (1). The liquid storage tank (4) is equipped with a refrigeration mechanism, the top surface of the liquid storage tank (4) is equipped with a stirring assembly, the fixed frame (1) is equipped with a heat sealing mechanism, and the front of the fixed frame (1) is equipped with a traction assembly.

2. A heat sealing apparatus for a bag making machine according to claim 1, wherein The refrigeration mechanism consists of a second temperature-conducting plate (8), a semiconductor refrigeration chip (9), a fan cover (10), and a heat dissipation fan (11). The second temperature-conducting plate (8) is fixedly connected to the inner wall of the liquid storage tank (4). The semiconductor refrigeration chip (9) is fixedly connected to the inner wall of the second temperature-conducting plate (8). The fan cover (10) is fixedly connected to the back of the liquid storage tank (4). The heat dissipation fan (11) is fixedly connected to the inner wall of the fan cover (10).

3. The heat sealing apparatus for a bag making machine according to claim 1, wherein The stirring assembly consists of a servo motor (12), a fixed shaft (13), and a stirring paddle (14). The servo motor (12) is fixedly connected to the top surface of the liquid storage tank (4), and the output end of the servo motor (12) is rotatably connected to the inner wall of the liquid storage tank (4). The fixed shaft (13) is fixedly connected to the output end of the servo motor (12), and the inner wall of the stirring paddle (14) is fixedly connected to the surface of the fixed shaft (13).

4. The heat sealing apparatus for a bag making machine according to claim 1, wherein The heat sealing mechanism consists of a support frame (15), an electric push rod (16), a fixed frame (17), and a heating wheel (18). The support frame (15) is fixedly connected to the inner wall of the fixed frame (1), the electric push rod (16) is fixedly connected to the inner wall of the fixed frame (1), the fixed frame (17) is fixedly connected to the output end of the electric push rod (16), and the heating wheel (18) is rotatably connected to the inner wall of the fixed frame (17).

5. The heat sealing apparatus for a bag making machine according to claim 1, wherein The traction assembly consists of a drive motor (19), a traction roller (20), and a transmission gear (21). The drive motor (19) is fixedly connected to the front of the fixed frame (1), and the output end of the drive motor (19) is rotatably connected to the inner wall of the fixed frame (1). The traction roller (20) is rotatably connected to the inner wall of the fixed frame (1), and the traction roller (20) is fixedly connected to the output end of the drive motor (19). The inner wall of the transmission gear (21) is fixedly connected to the surface of the traction roller (20).

6. The heat sealing apparatus for a bag making machine according to claim 1, wherein The number of heat exchange plates (7) is multiple, and all multiple heat exchange plates (7) are located inside the fixed frame (1).

7. The heat sealing equipment for a bag making machine according to claim 1, characterized in that, The first temperature-conducting plate (6) is rectangular and is made of aluminum metal.

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