Adjustable packaging bag heat sealing edge distance control equipment

By designing an adjustable heat-sealing edge control device for packaging bags, the problem of traditional equipment being unable to adapt to diverse packaging needs has been solved. This enables flexible adjustment of the heat-sealing edge and flatness of the packaging bags, thereby improving heat-sealing quality and production efficiency.

CN224060599UActive Publication Date: 2026-03-31XINGTAI JUTAI NEW MATERIALS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-27
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

Traditional heat-sealing equipment for packaging bags has fixed edge distances, making it difficult to adapt to diverse packaging needs. This leads to frequent heat-sealing defects, and the adjustments are complex and time-consuming, affecting product quality and efficiency.

Method used

The design incorporates an adjustable heat-sealing edge control device for packaging bags. Through a hydraulic telescopic cylinder, threaded rod, and spring pre-compression device, the position of the heating plate is adjusted and the packaging bag is leveled, ensuring uniform heat sealing and quality.

Benefits of technology

It improves the versatility and production efficiency of the equipment, reduces the probability of heat sealing failure, and enhances the sealing effect of packaging and the protective effect of products.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses adjustable packaging bag heat-sealing edge distance control equipment, and particularly relates to the field of packaging bag heat-sealing edge equipment.The adjustable packaging bag heat-sealing edge distance control equipment comprises an installation base, two installation blocks are symmetrically and fixedly installed on the upper end face of the installation base, and a transmission device is jointly arranged between the two installation blocks; two fixing columns are symmetrically and fixedly mounted on the upper end face of the mounting base, a fixing plate is jointly and fixedly mounted on the upper end faces of the two fixing columns, and a hydraulic telescopic cylinder is fixedly mounted on the upper end face of the fixing plate. During use, operation is easy, an operator rotates the handle to drive the threaded rod, the sliding block drives the heating plate to move through threaded transmission, the requirements for heat sealing edge distances of different packaging bags are rapidly met, the equipment universality and the production efficiency are improved, before heat sealing, the spring pressing plate exerts pre-pressure to smooth wrinkles, even heating is guaranteed, and the production efficiency is improved. The heating plate enables a heat-sealing part to reach a proper temperature, heat-sealing quality is guaranteed, the probability of bad products is reduced, and the packaging sealing performance and the product protection effect are improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to packing bag heat sealing edge equipment field, more specifically, the utility model relates to adjustable packing bag heat sealing edge distance control equipment. BACKGROUND

[0002] In the packaging industry, with the diversified development of the market, the product types are increasingly rich, and the specifications, sizes and materials of the packaging bags are also various. The traditional packaging bag heat sealing equipment has fixed edge distance, and lacks effective adjustment mechanism. When the enterprise needs to package different specifications of products, either the heat sealing equipment is frequently replaced, which is high in cost and time-consuming and laborious, or the complex adjustment is manually carried out, which is not only low in efficiency, but also difficult to guarantee the accuracy of the heat sealing edge distance, and is easy to cause unstable heat sealing quality, resulting in leakage sealing, virtual sealing and other problems, affecting the protection and sales of products.

[0003] The traditional heat sealing equipment can usually only heat seal the packaging bags of specific specifications, and the edge distance is fixed, which is difficult to adapt to diversified packaging demands. Meanwhile, in the previous heat sealing process, the packaging bags are prone to wrinkles, causing uneven heating during heat sealing, and resulting in leakage sealing, virtual sealing and other heat sealing defects.

[0004] Therefore, it is necessary to redesign the adjustable packaging bag heat sealing edge distance control equipment in view of the above problems. SUMMARY

[0005] In order to overcome the above-mentioned defects of the prior art, the embodiments of the utility model provide an adjustable packaging bag heat sealing edge distance control equipment.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0007] The adjustable packaging bag heat sealing edge distance control equipment comprises a mounting base, two mounting blocks are symmetrically and fixedly installed on the upper end face of the mounting base, a transmission device is commonly arranged between the two mounting blocks, two fixed columns are symmetrically and fixedly installed on the upper end face of the mounting base, a fixed plate is commonly and fixedly installed on the upper end faces of the two fixed columns, a hydraulic telescopic cylinder is fixedly installed on the upper end face of the fixed plate, an installation plate is fixedly installed on the output shaft of the hydraulic telescopic cylinder, a sliding groove is formed in the bottom end of the installation plate, an adjusting device is arranged in the sliding groove, a connecting plate is fixedly connected to the output end of the adjusting device, a heating plate is fixedly installed at the bottom end of the connecting plate, an installation slot is formed in the bottom end of the heating plate, and a pre-pressing device is arranged in the installation slot.

[0008] In a preferred embodiment, the transmission device comprises a first transmission roller and a second transmission roller, and the first transmission roller and the second transmission roller are symmetrically and rotatably installed between the two mounting blocks, and a transmission belt is commonly installed between the first transmission roller and the second transmission roller.

[0009] In a preferred embodiment, the adjusting device includes a threaded rod, which is mounted on the inner wall of the slide groove via a bearing. The threaded rod is threadedly connected to a slider, which is slidably connected within the slide groove. A connecting block is fixedly connected to the bottom end of the slider, and a connecting plate is fixedly mounted on the bottom end of the connecting block.

[0010] In a preferred embodiment, the pre-compression device includes two springs, which are symmetrically and fixedly connected to the inner top wall of the mounting groove. One end of the two springs is fixedly connected to a pressure plate. The upper end of the pressure plate is symmetrically and fixedly installed with two limiting rods, and the top ends of the two limiting rods slide through the inner top wall of the mounting groove and the connecting plate, respectively.

[0011] In a preferred embodiment, a mounting frame is fixedly mounted on one side of one of the mounting blocks, a motor is fixedly mounted on the mounting frame, and the output shaft of the motor passes through one side of the mounting block corresponding to the position and is fixedly connected to one end of the second transmission roller.

[0012] In a preferred embodiment, one end of the threaded rod rotatably passes through the inner wall of the groove and extends outward to be fitted with a handle.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model, by setting up adjustment devices, handles and other devices, allows operators to drive the threaded rod by turning the handle, and use the threaded transmission to drive the slider to move in the groove, thereby flexibly adjusting the position of the heating plate. It can quickly adapt to the heat sealing edge distance requirements of different packaging bags, greatly improving the versatility and production efficiency of the equipment, and reducing the equipment adjustment time caused by changing packaging bag specifications.

[0015] 2. By setting a pre-compression device, the pressure plate applies pre-pressure to the packaging bag with the help of the elasticity of the spring before heat sealing. This effectively smooths out the wrinkles of the packaging bag and keeps it in a flat and stable state, ensuring uniform heating during heat sealing. Subsequently, the heating plate is in close contact with the packaging bag for heating, which can make the heat-sealed part reach a suitable temperature, ensuring the high-quality completion of the heat sealing operation, reducing the probability of heat sealing defects, and improving the sealing performance of the packaging and the protective effect of the product.

[0016] In summary, this utility model is simple to operate. The operator turns the handle to drive the threaded rod, and the threaded transmission causes the slider to move the heating plate, which can quickly adapt to the heat sealing edge distance requirements of different packaging bags, improve the versatility of the equipment and production efficiency. Before heat sealing, the spring pressure plate applies pre-pressure to smooth out wrinkles and ensure uniform heating. The heating plate makes the heat sealing part reach a suitable temperature, ensuring the heat sealing quality, reducing the probability of defects, and improving the sealing performance of the packaging and the protective effect of the product. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the adjustable packaging bag heat-sealing edge distance control device proposed in this utility model;

[0018] Figure 2 This is a schematic diagram of the transmission device of the adjustable packaging bag heat-sealing edge distance control device proposed in this utility model.

[0019] Figure 3 This is a schematic diagram of the internal slide of the adjustable packaging bag heat-sealing edge distance control device proposed in this utility model;

[0020] Figure 4 This is a schematic diagram of the installation groove of the adjustable packaging bag heat-sealing edge distance control device proposed in this utility model.

[0021] In the diagram: 1. Mounting base, 2. Mounting block, 3. Mounting frame, 4. Motor, 5. Fixing plate, 6. Hydraulic telescopic cylinder, 7. Mounting plate, 8. Connecting block, 9. Fixing column, 10. First transmission roller, 11. Second transmission roller, 12. Transmission belt, 13. Connecting plate, 14. Slide groove, 15. Threaded rod, 16. Slider, 17. Handle, 18. Mounting groove, 19. Spring, 20. Pressure plate, 21. Limiting rod, 22. Heating plate. Detailed Implementation

[0022] 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.

[0023] Reference Figures 1-4 An adjustable packaging bag heat-sealing edge control device includes a mounting base 1. Two mounting blocks 2 are symmetrically fixedly mounted on the upper surface of the mounting base 1, and a transmission device is provided between the two mounting blocks 2. Two fixing columns 9 are symmetrically fixedly mounted on the upper surface of the mounting base 1, and a fixing plate 5 is fixedly mounted on the upper surface of the two fixing columns 9. A hydraulic telescopic cylinder 6 is fixedly mounted on the upper surface of the fixing plate 5. A mounting plate 7 is fixedly mounted on the output shaft of the hydraulic telescopic cylinder 6. A sliding groove 14 is formed at the bottom of the mounting plate 7, and an adjusting device is provided within the sliding groove 14. A connecting plate 13 is fixedly connected to the output end of the adjusting device. A heating plate 22 is fixedly mounted at the bottom of the connecting plate 13, and a mounting groove 18 is formed at the bottom of the heating plate 22. A pre-pressing device is provided within the mounting groove 18. During the heat-sealing process, the hydraulic telescopic cylinder 6 maintains a certain pressure to ensure the heat-sealing quality. After heat-sealing is completed, the output shaft of the hydraulic telescopic cylinder 6 retracts, driving the heating plate 22, connecting plate 13, and other components to move upwards back to their initial position, awaiting the next heat-sealing operation.

[0024] The transmission device includes a first transmission roller 10 and a second transmission roller 11, which are symmetrically and rotatably mounted between two mounting blocks 2. A transmission belt 12 is installed between the first transmission roller 10 and the second transmission roller 11, and both the first transmission roller 10 and the second transmission roller 11 can be driven to rotate by the transmission belt 12.

[0025] The adjusting device includes a threaded rod 15, which is mounted on the inner wall of the slide groove 14 via a bearing. The threaded rod 15 is threadedly connected to a slider 16, which is slidably connected within the slide groove 14. A connecting block 8 is fixedly connected to the bottom end of the slider 16, and a connecting plate 13 is fixedly installed at the bottom end of the connecting block 8.

[0026] The pre-compression device includes two springs 19, which are symmetrically and fixedly connected to the inner top wall of the mounting groove 18. One end of each spring 19 is fixedly connected to a pressure plate 20. Two limiting rods 21 are symmetrically and fixedly installed on the upper end of the pressure plate 20. The top ends of the two limiting rods 21 slide through the inner top wall of the mounting groove 18 and the connecting plate 13, respectively. The limiting rods 21 slide through the inner top wall of the mounting groove 18 and the connecting plate 13 to limit the movement and ensure that the pressure plate 20 does not shift during the up and down movement, thus ensuring the stability of the pre-compression effect.

[0027] One of the mounting blocks 2 has a mounting frame 3 fixedly mounted on one side, and a motor 4 is fixedly mounted on the mounting frame 3. The output shaft of the motor 4 passes through one side of the mounting block 2 at the corresponding position and is fixedly connected to one end of the second transmission roller 11, so that the motor 4 can drive the second transmission roller 11 to rotate.

[0028] One end of the threaded rod 15 rotates through the inner wall of the slide groove 14 and extends outward to install a handle 17. The rotation of the handle 17 can drive the threaded rod 15 to rotate synchronously.

[0029] When this utility model is in use, when the motor 4 starts, it drives the second transmission roller 11 to rotate. Since a transmission belt 12 is installed between the first transmission roller 10 and the second transmission roller 11, the first transmission roller 10 also rotates, thereby causing the transmission belt 12 to start running. The packaging bag is placed on the transmission belt 12, and the packaging bag is transported to the heat sealing work area by the rotation of the transmission belt 12.

[0030] The operator turns handle 17, causing threaded rod 15 to rotate. Because threaded rod 15 is threadedly connected to slider 16, and slider 16 is slidably connected in groove 14, the rotation of threaded rod 15 causes slider 16 to move along the axial direction of threaded rod 15 in groove 14. Slider 16 is fixedly connected to connecting plate 13 through connecting block 8, thereby causing connecting plate 13 to move. Heating plate 22 is fixedly installed at the bottom of connecting plate 13, so the position of heating plate 22 will also change accordingly, thereby adjusting the heat sealing edge distance to meet the heat sealing edge distance requirements of different packaging bags. Hydraulic telescopic cylinder 6 is fixedly installed on fixed plate 5. When heat sealing operation is required, the output shaft of hydraulic telescopic cylinder 6 extends downward, pushing mounting plate 7 downward. Since groove 14 is opened at the bottom of mounting plate 7, and the adjusting device is installed in groove 14 and connected to heating plate 22 through connecting plate 13, the downward movement of mounting plate 7 will cause heating plate 22 to move downward together, bringing heating plate 22 closer to packaging bag, preparing for heat sealing operation.

[0031] As the heating plate 22 moves downward, when the heating plate 22 approaches the packaging bag, the pressure plate 20 contacts the packaging bag first. Due to the elasticity of the spring 19, a pre-pressure is applied to the packaging bag, so that the packaging bag remains flat and stable before heat sealing.

[0032] After the pre-compression is completed, the heating plate 22 continues to move downward until it comes into close contact with the packaging bag. At this time, the heating plate 22 heats the packaging bag so that the heat-sealing part of the packaging bag reaches a suitable temperature, thus realizing the heat-sealing operation.

[0033] 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. Adjustable packaging bag heat seal margin control device, comprising a mounting base (1), characterized in that: The upper end face of the mounting base (1) is symmetrically fixed with two mounting blocks (2), and the transmission device is arranged between the two mounting blocks (2). The upper end face of the mounting base (1) is symmetrically fixed with two fixed columns (9), and the upper end face of the two fixed columns (9) is fixed with a fixed plate (5). The upper end face of the fixed plate (5) is fixed with a hydraulic telescopic cylinder (6), and the output shaft of the hydraulic telescopic cylinder (6) is fixed with a mounting plate (7). The bottom end of the mounting plate (7) is provided with a sliding groove (14), and the sliding groove (14) is provided with an adjusting device. The output end of the adjusting device is fixedly connected with a connecting plate (13), and the bottom end of the connecting plate (13) is fixedly installed with a heating plate (22). The bottom end of the heating plate (22) is provided with a mounting groove (18), and the mounting groove (18) is provided with a pre-pressing device.

2. The adjustable bag heat seal margin control apparatus of claim 1, wherein: The transmission device comprises a first transmission roller (10) and a second transmission roller (11), and the first transmission roller (10) and the second transmission roller (11) are symmetrically rotatably installed between the two mounting blocks (2). The first transmission roller (10) and the second transmission roller (11) are commonly provided with a transmission belt (12).

3. The adjustable bag heat seal margin control apparatus of claim 1, wherein: The adjusting device comprises a threaded rod (15), and the threaded rod (15) is installed on the inner side wall of the sliding groove (14) through a bearing. The threaded rod (15) is threadedly connected with a sliding block (16), and the sliding block (16) is slidably connected in the sliding groove (14). The bottom end of the sliding block (16) is fixedly connected with a connecting block (8), and the connecting plate (13) is fixedly installed at the bottom end of the connecting block (8).

4. The adjustable bag heat seal margin control apparatus of claim 1, wherein: The pre-pressing device comprises two springs (19), and the two springs (19) are symmetrically fixedly connected to the inner top wall of the mounting groove (18). One end of the two springs (19) is commonly fixedly connected with a pressing plate (20). The upper end face of the pressing plate (20) is symmetrically fixed with two limiting rods (21), and the top ends of the two limiting rods (21) respectively slide through the inner top wall of the mounting groove (18) and the connecting plate (13).

5. The adjustable packaging bag heat seal margin control apparatus of claim 2, wherein: One side of one of the mounting blocks (2) is fixedly provided with a mounting rack (3), and the mounting rack (3) is fixedly provided with a motor (4). The output shaft of the motor (4) penetrates the side of the corresponding mounting block (2) and is fixedly connected with one end of the second transmission roller (11).

6. The adjustable packaging bag heat seal margin control apparatus of claim 3, wherein: One end of the threaded rod (15) rotatably penetrates the inner side wall of the sliding groove (14) and is outwardly extended to be installed with a handle (17).