Packaging bag pressing mechanism capable of rapidly cooling

Abstract

The utility model discloses a packaging bag pressing mechanism capable of quickly cooling, which comprises a concave base frame, a pressing platform arranged on the top surface of a bottom plate of the base frame, a support frame arranged on top plates on two sides of the base frame, a sealing cavity seat arranged below the support frame, a heat conducting seat arranged at the bottom of the sealing cavity seat, and a heat preservation box arranged at the top of the sealing cavity seat. A heating module is movably arranged in the heat preservation box, the pressing mechanism achieves sealing of a packaging bag in the pressing mode that the heating module and the heat conduction base are combined, after the heating module moves downwards to make contact with the heat conduction base, heat can be rapidly transferred to the heat conduction base, and after the heating module resets and leaves the heat conduction base, the heat conduction base is closed. The ventilation openings in the two sides of the sealing cavity can be automatically opened, cold air can rapidly cool the heat conduction base, the packaging bag is prevented from adhering to the heat conduction base, the whole process can be achieved only through one air cylinder, frequent starting of the cooling mechanism and the heating mechanism is not needed, energy saving and environment protection are achieved, and the service life of the whole device is greatly prolonged.

Description

Technical fields:

[0001] This utility model relates to the field of flexible packaging bag processing, and more specifically to a packaging bag heat pressing mechanism that can quickly cool down. Background technology:

[0002] A plastic packaging bag heat press machine is a device used for sealing and hot stamping plastic packaging bags. This machine is mainly used to process various plastic film bags, such as food packaging bags, cosmetic bags, and medicine bags. Its main functions include heating, pressure, and sealing to ensure that the bags are firmly and tightly sealed. It can also perform processes such as printing or hot stamping.

[0003] Chinese patent CN217373701U discloses a hot pressing device for processing flexible packaging bags, including a cooling and sealing support box, a connecting rod, a motor support plate, a pneumatic sealing motor, a sealing pressure rod, a heat dissipation air inlet, a heat dissipation motor, a heat dissipation fan, and an anti-adhesion cooling air blowing device. The connecting rod is located on the cooling and sealing support box, and the motor support plate is located on the connecting rod.

[0004] In the aforementioned device, the fan needs to be turned off during the heat pressing process and turned on again after heat pressing to cool down. Frequent fan starts and stops increase wear on mechanical parts, shorten the fan's lifespan, and increase maintenance costs. Constantly switching the fan on and off also causes unnecessary energy consumption, especially since the starting current is usually higher than the operating current, leading to increased electricity bills, higher failure rates, and greater maintenance complexity in the long run. Therefore, this application provides a packaging bag heat pressing mechanism that can quickly cool down to meet this need. Utility model content:

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a packaging bag heat sealing mechanism that can quickly cool the packaging bag. This heat sealing mechanism uses a combination of a heating module and a heat-conducting seat to seal the packaging bag. After the heating module moves down and contacts the heat-conducting seat, it can quickly transfer heat to the heat-conducting seat. After the heating module returns to its original position and leaves the heat-conducting seat, the vents on both sides of the sealed cavity will automatically open, and the cold air will quickly cool the heat-conducting seat, preventing the packaging bag from sticking to the heat-conducting seat. The entire process can be achieved by only one cylinder, and there is no need for frequent start-ups of the cooling and heating mechanisms. This is energy-saving and environmentally friendly, and the service life of the entire device is greatly improved.

[0006] To achieve the above technical solution, this utility model provides the following technical solution:

[0007] A packaging bag heat-pressing mechanism capable of rapid cooling includes a U-shaped base frame, a heat-pressing platform on the top surface of the base plate, support frames on the top plates of both sides of the base frame, a pair of guide columns between the top plate of the support frames and the top plates of both sides of the base frame, a support spring and a guide connecting plate fitted on the guide columns, a sealed cavity seat connected between the two guide connecting plates, a heat-conducting seat at the bottom of the sealed cavity seat, ventilation seats on both sides of the sealed cavity seat, a heat-insulating box at the top of the sealed cavity seat, a heating module movably disposed inside the heat-insulating box, and a working cylinder at the top of the support frame, the piston rod of the working cylinder passing through the top plate of the support frame and connected to the heating module.

[0008] As a preferred embodiment of the above technical solution, the heat-conducting seat is T-shaped and faces the heat-pressing platform. The heat-conducting seat is inserted into the bottom plate of the sealed cavity seat and connected by limiting bolts around the perimeter.

[0009] As a preferred embodiment of the above technical solution, the heat preservation box is fixed in the sealed cavity seat. The heat preservation box has a through-body structure. The heating module is inserted into the heat preservation box. A pair of protruding plates are provided on the front and rear sides of the bottom of the heat preservation box. A heat preservation flip cover is rotatably provided between the two protruding plates on each side. A reset torsion spring is provided on the rotating shaft of each heat preservation flip cover.

[0010] As a preferred embodiment of the above technical solution, the left and right side plates of the sealing cavity seat are provided with built-in grooves, and lifting sealing plates that slide up and down are provided in the built-in grooves. The inner walls of the left and right side plates of the sealing cavity seat are provided with vertical sliding grooves that communicate with the built-in grooves, and ventilation openings that penetrate the side plates of the sealing cavity seat are provided below the vertical sliding grooves. Ventilation seats are installed on the outside of the ventilation openings. The reset protrusion on the lifting sealing plate passes through the vertical sliding groove and is connected to the inner wall of the top plate of the sealing cavity seat by a reset spring. The left and right side plates of the heat preservation box are provided with vertical transmission grooves, and the transmission pressure plates on both sides of the heating module extend out of the vertical transmission grooves and press against the top surface of the reset protrusion.

[0011] As a preferred embodiment of the above technical solution, the ventilation seat can be connected to an external air inlet pipe and air outlet pipe.

[0012] The beneficial effects of this utility model are as follows: The heat-sealing mechanism uses a combination of a heating module and a heat-conducting seat to seal the packaging bag. After the heating module moves down and contacts the heat-conducting seat, it can quickly transfer heat to the heat-conducting seat. After the heating module returns to its original position and leaves the heat-conducting seat, the ventilation openings on both sides of the sealed cavity will automatically open, and the cold air will quickly cool the heat-conducting seat, preventing the packaging bag from sticking to the heat-conducting seat. The whole process can be achieved by only one cylinder, and there is no need for frequent start-ups of the cooling and heating mechanisms. It is energy-saving and environmentally friendly, and the service life of the entire device is greatly improved. Attached image description:

[0013] The present invention will be further described below with reference to the accompanying drawings:

[0014] Figure 1 This is a schematic diagram of the structure of a packaging bag heat pressing mechanism that can quickly cool down according to this utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the front side plate of the sealing cavity seat after it is opened in this utility model;

[0016] Figure 3 for Figure 2 The front view;

[0017] Figure 4 This is a schematic diagram of the internal structure of the sealing cavity seat in this utility model;

[0018] Figure 5 for Figure 4 Enlarged view at point A;

[0019] Figure 6 This utility model presents an internal structural diagram of the sealing cavity seat from another perspective. Detailed implementation method:

[0020] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. The terms "above" and "below" mentioned in this embodiment are consistent with the directions above and below the drawings themselves, and are only for the convenience of description and are not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered as within the scope of implementation of this utility model.

[0021] Depend on Figure 1 and Figure 2 As shown, a packaging bag heat-pressing mechanism capable of rapid cooling includes a U-shaped base frame 1. A heat-pressing platform 11 is provided on the top surface of the base plate of the base frame 1. Support frames 12 are provided on the top plates of both sides of the base frame 1. A pair of guide posts 13 are provided between the top plate of the support frames 12 and the top plates of both sides of the base frame 1. Support springs 14 and guide connecting plates 16 are fitted onto the guide posts 13. The guide connecting plates 16 press against the support springs 14. A sealing cavity seat 2 is connected between the two guide connecting plates 16. A heat-conducting seat 24 is provided at the bottom of the sealing cavity seat 2. The heat-conducting seat 24 is T-shaped and faces the heat-pressing platform. The heat-conducting seat 24 is inserted into the bottom plate of the sealed cavity seat 2 and connected by limiting bolts 25 around the perimeter. Ventilation seats 23 are provided on both sides of the sealed cavity seat 2. A heat-insulating box 21 is provided on the top of the sealed cavity seat 2. A heating module 22 is movably installed inside the heat-insulating box 21. A working cylinder 15 is provided on the top of the support frame 12. The piston rod of the working cylinder 15 passes through the top plate of the support frame 12 and is connected to the heating module 22. When the piston rod of the working cylinder 15 extends, the heating module 22 extends out of the heat-insulating box 21 and presses against the heat-conducting seat 24, finally driving the entire sealed cavity seat 2 to move down.

[0022] Depend on Figures 3 to 6 As shown, the heat preservation box 21 is fixed inside the sealed cavity seat 2. The heat preservation box 21 has a vertically integrated structure. The heating module 22 is inserted into the heat preservation box 21. A pair of protruding plates 212 are provided on the front and rear sides of the bottom of the heat preservation box 21. A heat preservation flip cover 211 is rotatably provided between the two protruding plates on each side. A reset torsion spring 213 is provided on the rotating shaft of each heat preservation flip cover 211. When the heating module 22 extends out from under the heat preservation box 21, it automatically pushes open the heat preservation flip cover 211. After the heating module 22 retracts into the heat preservation box 21, the heat preservation flip cover 211 resets and blocks under the heat preservation box 21 to prevent cold air from entering the heat preservation box 21 and ensure the temperature of the heating module 22.

[0023] The left and right side plates of the sealed cavity seat 2 have built-in grooves, and lifting sealing plates 27 that slide up and down are provided in the built-in grooves. The inner walls of the left and right side plates of the sealed cavity seat 2 are provided with vertical sliding grooves 202 that communicate with the built-in grooves. Below the vertical sliding grooves 202, there are ventilation openings 201 that penetrate through the side plates of the sealed cavity seat 2. Ventilation seats 23 are installed on the outside of the ventilation openings 201. The reset protrusions 26 on the lifting sealing plates 27 pass through the vertical sliding grooves 202 and are connected to the inner wall of the top plate of the sealed cavity seat 2 by a reset spring 261. The left and right side plates of the heat preservation box 21 A vertical transmission groove 214 is provided. The transmission pressure plates 221 on both sides of the heating module 22 extend out of the vertical transmission groove 214 and press against the top surface of the reset protrusion 26. When the heating module 22 extends out of the heat preservation box 21, the transmission pressure plate 221 drives the reset protrusion 26, thereby causing the lifting sealing plate 27 to move down and block the vent 201, ensuring that the temperature does not leak out of the sealed cavity seat 2. After the heating module 22 retracts into the heat preservation box 21, the lifting sealing plate 27 moves up and resets under the action of the reset spring 261, and the vent 201 opens. The ventilation seat 23 can be connected to the external air inlet pipe and air outlet pipe.

[0024] The working principle of this utility model:

[0025] When the packaging bag is being pressed, the piston rod of the working cylinder 15 extends, the heating module 22 moves down and extends from below the insulation box 21, and automatically pushes open the insulation flip cover 211. At the same time, the transmission pressure plate 221 presses against the reset protrusion 26, thereby causing the lifting sealing plate 27 to move down and block the vent 201, ensuring that the temperature does not leak out of the sealed cavity seat 2. The heating module 22 finally presses against the top surface of the heat-conducting seat 24 and quickly transfers heat to the heat-conducting seat 24. After the heating module 22 and the heat-conducting seat 24 are in contact, the entire sealed cavity seat 2 continues to move down under the action of the working cylinder 15 until the heat-conducting seat 24 presses against the packaging bag on the pressing platform 11. After the pressing is completed, the piston rod of the working cylinder 15 resets. When the heating module 22 is separated from the heat-conducting seat 24, the vent 201 opens, and the air inlet and outlet pipes on the ventilation seat 23 automatically introduce cold air to quickly cool the heat-conducting seat 24, and the packaging bag stuck to the heat-conducting seat 24 automatically falls off.

Claims

1. A packaging bag heat pressing mechanism capable of rapid cooling, comprising a U-shaped base frame (1), a heat pressing platform (11) provided on the top surface of the base plate of the base frame (1), and support frames (12) provided on the top plates of both sides of the base frame (1), characterized in that: A pair of guide columns (13) are provided between the top plate of the support frame (12) and the top plates on both sides of the base frame (1). A support spring (14) and a guide connecting plate (16) are sleeved on the guide columns (13). A sealing cavity seat (2) is connected between the two guide connecting plates (16). A heat conduction seat (24) is provided at the bottom of the sealing cavity seat (2). A ventilation seat (23) is provided on both sides of the sealing cavity seat (2). A heat preservation box (21) is provided at the top of the sealing cavity seat (2). A heating module (22) is movably provided inside the heat preservation box (21). A working cylinder (15) is provided at the top of the support frame (12). The piston rod of the working cylinder (15) passes through the top plate of the support frame (12) and is connected to the heating module (22).

2. The packaging bag heat pressing mechanism with rapid cooling according to claim 1, characterized in that: The heat-conducting seat (24) is T-shaped and faces the heat-pressing platform (11). The heat-conducting seat (24) is inserted into the bottom plate of the sealed cavity seat (2) and connected by limiting bolts (25) around the perimeter.

3. The packaging bag heat pressing mechanism with rapid cooling according to claim 1, characterized in that: The heat preservation box (21) is fixed inside the sealed cavity seat (2). The heat preservation box (21) has a vertical structure. The heating module (22) is inserted inside the heat preservation box (21). A pair of protruding plates (212) are provided on the front and rear sides of the bottom of the heat preservation box (21). A heat preservation flip cover (211) is rotatably provided between the two protruding plates on each side. A reset torsion spring (213) is provided on the rotating shaft of each heat preservation flip cover (211).

4. The packaging bag heat pressing mechanism with rapid cooling according to claim 3, characterized in that: The left and right side plates of the sealing cavity seat (2) are provided with built-in grooves and lifting sealing plates (27) that slide up and down in the built-in grooves. The inner walls of the left and right side plates of the sealing cavity seat (2) are provided with vertical sliding grooves (202) that communicate with the built-in grooves. Below the vertical sliding grooves (202), there are ventilation openings (201) that penetrate the side plates of the sealing cavity seat (2). The ventilation seat (23) is installed on the outside of the ventilation openings (201). The reset protrusion (26) on the lifting sealing plate (27) passes through the vertical sliding groove (202) and is connected to the inner wall of the top plate of the sealing cavity seat (2) by a reset spring (261). The left and right side plates of the heat preservation box (21) are provided with vertical transmission grooves (214). The transmission pressure plates (221) on both sides of the heating module (22) extend out of the vertical transmission grooves (214) and press against the top surface of the reset protrusion (26).

5. The packaging bag heat pressing mechanism with rapid cooling according to claim 1, characterized in that: All ventilation seats (23) can be connected to external air inlet and air outlet pipes.

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