Heat sealing device for processing plastic packaging bags for food

By using a motor-driven rotating handle and lifting column structure, combined with a double high-temperature sealing plate and heat sealing seat, the problems of high cost and complex maintenance of existing heat sealing devices are solved, achieving a low-cost and high-sealing heat sealing effect.

CN223919756UActive Publication Date: 2026-02-17ZHOUSHAN SHENGJUXIANG PACKAGING CO LTD
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Patent Information

Application Number
CN202520675087.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-11
Publication Date
2026-02-17
Estimated Expiration
2035-04-11

AI Technical Summary

Technical Problem

Existing heat sealing devices use a hydraulic structure, which is costly and complex to maintain, making it difficult to meet the needs for economical and efficient sealing.

Method used

The structure employs a motor-driven rotating handle and lifting column, combined with a double high-temperature sealing plate and heat-sealing seat, to achieve double heat sealing of the bag opening, reducing maintenance costs and improving sealing performance.

Benefits of technology

It achieves a heat-sealing effect that is simple in structure, low in maintenance cost, and has high sealing performance, thereby reducing the risk of seal leakage.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of heat sealing devices, in particular to a heat sealing device for processing plastic packaging bags for food, which comprises a motor, a motor shaft is connected with a rotating shaft at one end of a rotating handle, a rotating rod is mounted at the other end of the rotating handle and rotates in an adjusting groove, the adjusting groove is arranged in an adjusting handle, and the left end of the adjusting handle is rotatably connected with a connecting handle. The other end of the connecting handle is rotationally connected to the middle position of the lifting column, the rotating rod rotates and deviates in the adjusting groove, so that the adjusting handle generates angular amplitude deviation, the lifting column can move up and down through the rotating connection effect of the connecting handle, the structure is simple, the maintenance cost is low, and when the lifting column is lifted, the lower pressing plate ascends till the lower pressing plate is attached to the upper pressing plate; and at the moment, hot packaging of the bag opening is carried out.
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Description

Technical Field

[0001] This utility model relates to the field of heat sealing devices, specifically to a heat sealing device for processing food plastic packaging bags. Background Technology

[0002] A heat sealing machine is a device used to seal plastic films or other thermoplastic materials by heating and pressurizing. Its working principle is based on the hot-press sealing method. The upper and lower heat-sealing heads are heated to a preset temperature, causing the material to be sealed to reach a molten state. Then, heat sealing is completed under predetermined time and pressure. Finally, the material cools and solidifies, forming a heat-sealed area. However, most heat sealing devices use hydraulic structures for heat sealing. Hydraulic presses are too expensive, and their internal components are mostly precision parts, making maintenance relatively complex and costly. Therefore, those skilled in the art provide a heat sealing device for processing food-grade plastic packaging bags to solve the problems mentioned in the background art. Summary of the Invention

[0003] To solve the above-mentioned technical problems, this utility model provides a heat sealing device for processing food plastic packaging bags, including a motor, the motor shaft is connected to a rotating shaft at one end of a rotating handle, a rotating rod is installed at the other end of the rotating handle, the rotating rod rotates in an adjusting groove, the adjusting groove is located in the adjusting handle, the left end of the adjusting handle is rotatably connected to a connecting handle, and the other end of the connecting handle is rotatably connected to the middle position of the lifting column.

[0004] Preferably: the handle and the motor connection end are installed in the first handle seat, the first handle seat is installed on the platform, the second handle seat is installed at the upper right end of the platform, and the right end of the adjustment handle is rotatably installed in the second handle seat;

[0005] Preferably: the platform is installed on the side wall of the support frame, a reinforcing plate is installed between the support frame and the platform, a base is installed on the lower side of the support frame, an upper pressure plate is installed on the top of the support frame, a heat source is installed on the upper side of the upper pressure plate, a through hole is provided in the middle of the upper pressure plate, a thread groove is provided inside the upper pressure plate, through grooves are provided on both sides of the thread groove, and a second groove is provided on the lower side of the through groove.

[0006] Preferably: an electric heating wire is installed in the wire groove, and connecting parts are installed on both sides of the electric heating wire. The connecting parts are installed in the through groove and connected to a high-temperature sealing plate. The high-temperature sealing plate is installed in the second groove and a sealing head is installed on the lower side of the high-temperature sealing plate.

[0007] Preferably: a column is installed on the upper side of the base, a lifting column is movably installed inside the column, a lower pressure plate is installed on the top of the lifting column, a first groove is provided on the upper side wall of the lower pressure plate, a slot is provided in the first groove, a heat sealing seat is installed in the first groove, a clamping plate is installed on both sides of the heat sealing seat, the clamping plate can be clamped into the slot, and a sealing groove is provided on the upper side wall of the heat sealing seat.

[0008] The technical effects and advantages of this utility model are as follows:

[0009] 1. The rotating rod rotates and deflects within the adjusting groove, causing the adjusting handle to deflect at an angle. Through the rotational connection of the connecting handle, the lifting column can move up and down. The structure is simple and the maintenance cost is low. When the lifting column is raised, the lower pressure plate rises until it is in contact with the upper pressure plate, at which point the bag opening is heat-sealed.

[0010] 2. By installing two high-temperature sealing plates and heat-sealing seats, the bag opening can be double-heat-sealed, improving the sealing performance and reducing the risk of leakage. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of a heat-sealing device for processing food plastic packaging bags provided in an embodiment of this application;

[0012] Figure 2 This is a schematic diagram of the sealing state of a heat-sealing device for processing food plastic packaging bags provided in an embodiment of this application;

[0013] Figure 3 This is an exploded structural diagram of a heat-sealing device for processing food plastic packaging bags provided in an embodiment of this application;

[0014] Figure 4 This application provides a heat-sealing device for processing food-grade plastic packaging bags. Figure 3 Enlarged schematic diagram of structure A;

[0015] Figure 5 This application provides a heat-sealing device for processing food-grade plastic packaging bags. Figure 3 Enlarged schematic diagram of structure B;

[0016] Figure 6 This is a schematic diagram of the structure of a heat sealing device for processing food plastic packaging bags provided in this application, in which the lifting column is not lifted;

[0017] Figure 7 This is a schematic diagram of the lifting column structure in a heat sealing device for processing food plastic packaging bags provided in an embodiment of this application.

[0018] In the diagram: 1. Base; 2. Lower pressure plate; 3. Upper pressure plate; 4. Heating wire; 5. High-temperature sealing plate; 6. Heat sealing seat; 7. Adjusting handle; 8. Rotating handle; 9. Connecting handle; 10. Lifting column; 11. Motor; 12. Heat source; 101. Column; 102. Support frame; 103. Platform; 104. Reinforcing plate; 105. Handle seat No. 1; 106. Handle seat No. 2; 201. Groove No. 1; 202. Slot; 301. Through hole; 302. Thread groove; 303. Through groove; 304. Groove No. 2; 401. Connecting component; 501. End cap; 601. Clamping plate; 602. Sealing groove; 701. Adjusting groove; 801. Rotating rod. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical applications of the present invention, and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for a particular purpose. Example

[0020] Please see Figures 1 to 7 In this embodiment, a heat sealing device for processing food plastic packaging bags is provided, including a motor 11. The motor shaft of the motor 11 is connected to the shaft of one end of the rotating handle 8. The other end of the rotating handle 8 is equipped with a rotating rod 801. The rotating rod 801 rotates in the adjusting groove 701. The adjusting groove 701 is located in the adjusting handle 7. The left end of the adjusting handle 7 is rotatably connected to the connecting handle 9. The other end of the connecting handle 9 is rotatably connected to the middle position of the lifting column 10.

[0021] Specifically, the connecting ends of the handle 8 and the motor 11 are installed in the first handle seat 105, which is installed on the platform 103. The second handle seat 106 is installed on the upper right side of the platform 103. The right end of the adjusting handle 7 is rotatably installed in the second handle seat 106. The platform 103 is installed on the side wall of the support frame 102. A reinforcing plate 104 is installed between the support frame 102 and the platform 103. The base 1 is installed on the lower side of the support frame 102. The upper pressure plate 3 is installed on the top of the support frame 102. The heat source 12 is installed on the upper pressure plate 3. A through hole 301 is provided in the middle of the upper pressure plate 3. A thread groove 302 is provided inside the upper pressure plate 3. Through grooves 303 are provided on both sides of the thread groove 302. A second groove 30 is provided on the lower side of the through groove 303. 4. A heating wire 4 is installed in the wire groove 302. Connecting parts 401 are installed on both sides of the heating wire 4. The connecting parts 401 are installed in the through groove 303. The connecting parts 401 are connected to the high temperature sealing plate 5. The high temperature sealing plate 5 is installed in the second groove 304. A sealing head 501 is installed on the lower side of the high temperature sealing plate 5. A column cylinder 101 is installed on the upper side of the base 1. A lifting column 10 is movably installed in the column cylinder 101. A lower pressure plate 2 is installed on the top of the lifting column 10. A first groove 201 is provided on the upper side wall of the lower pressure plate 2. A slot 202 is provided in the first groove 201. A heat sealing seat 6 is installed in the first groove 201. A clamping plate 601 is installed on both sides of the heat sealing seat 6. The clamping plate 601 can be inserted into the slot 202. A sealing groove 602 is provided on the upper side wall of the heat sealing seat 6.

[0022] The working principle of this utility model is as follows:

[0023] In a heat-sealing device for processing food-grade plastic packaging bags, the heat source 12 is started for preheating. The plastic packaging bag to be sealed is placed on the lower pressure plate 2. The motor 11 is started to rotate the handle 8. The rotating rod 801 rotates and shifts within the adjusting groove 701, causing the adjusting handle 7 to shift in angle. Through the rotational connection of the connecting handle 9, the lifting column 10 can move up and down. The structure is simple and the maintenance cost is low. When the lifting column 10 is raised, the lower pressure plate 2 rises until it is in contact with the upper pressure plate 3. At this time, the bag opening is heat-sealed. By installing two high-temperature sealing plates 5 and heat-sealing seats 6, the bag opening can be double-heat-sealed, which improves the sealing performance and reduces the risk of leakage.

[0024] Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of this utility model without creative effort should fall within the protection scope of this utility model. Structures, devices, and operating methods not specifically described and explained in this utility model, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A heat-sealing device for processing food-grade plastic packaging bags, characterized in that, It includes motor (11), the motor (11) machine axle connects the rotating shaft of one end of the handle (8), the handle (8) installs the rotating rod (801) on the other end, the rotating rod (801) rotates in the adjusting groove (701), the adjusting groove (701) is arranged in the adjusting handle (7), the adjusting handle (7) left end rotating connection is connected to the handle (9), the handle (9) other end rotating connection is connected in the middle position of the lifting column (10).

2. The heat-sealing apparatus for processing plastic packaging bags for food according to claim 1, wherein The handle (8) and motor (11) connection end are installed in a handle seat (105), the handle seat (105) is installed on the table plate (103), the right end position of the upper side of the table plate (103) is installed with the second handle seat (106), the right end of the adjusting handle (7) is rotatably installed in the second handle seat (106).

3. The heat-sealing apparatus for processing plastic food packaging bags according to claim 2, wherein The table plate (103) is installed on the side wall of the support frame (102), the support frame (102) and the table plate (103) are installed with the reinforcing plate (104) between them, the support frame (102) lower side is installed with the base (1), the support frame (102) top is installed with the upper pressing plate (3).

4. The heat-sealing apparatus for processing plastic packaging bags for food according to claim 3, wherein The upper side of the upper pressing plate (3) is installed with the heat source machine (12), the middle position of the upper pressing plate (3) is provided with a through hole (301), the upper pressing plate (3) is provided with a silk groove (302) inside, the two sides of the silk groove (302) are provided with a through groove (303), and the lower side of the through groove (303) is provided with a second strip groove (304).

5. The heat-sealing apparatus for processing plastic food packaging bags according to claim 4, wherein The silk groove (302) is installed with the electric heating wire (4), the two sides of the electric heating wire (4) are installed with the communication part (401), and the communication part (401) is installed in the through groove (303).

6. The heat-sealing apparatus for processing plastic packaging bags for food according to claim 5, wherein The communication part (401) is connected with the high-temperature sealing plate (5), the high-temperature sealing plate (5) is installed in the second strip groove (304), and the lower side of the high-temperature sealing plate (5) is installed with the sealing head (501).

7. The heat-sealing apparatus for processing plastic food packaging bags according to claim 3, wherein The upper side of the base (1) is installed with the column cylinder (101), the column cylinder (101) is movably installed with the lifting column (10) inside, the lifting column (10) top is installed with the lower pressing plate (2), and the upper side wall of the lower pressing plate (2) is provided with a first strip groove (201), and the first strip groove (201) is provided with a clamping groove (202).

8. The heat-sealing apparatus for processing plastic food packaging bags according to claim 7, wherein The first strip groove (201) is installed with the heat sealing seat (6), the two sides of the heat sealing seat (6) are installed with the clamping plate (601), and the clamping plate (601) can be clamped into the clamping groove (202).

9. The heat-sealing apparatus for processing plastic food packaging bags according to claim 8, wherein The upper side wall of the heat sealing seat (6) is provided with a sealing groove (602).