Vacuum bag packaging closure device

CN224645230UActive Publication Date: 2026-08-18GUANGDONG ZHONGYUAN PACKAGING IND CO LTD
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Patent Information

Application Number
CN202522243924.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-23
Publication Date
2026-08-18
Estimated Expiration
2035-10-23

AI Technical Summary

Technical Problem

[0003]传统的封口装置存在诸多不足,一方面,抽气环节常因连接结构不稳定,易出现松动、漏气情况,导致抽气效率低下,难以快速让真空袋达到所需真空度;另一方面,封口组件的加热部件多为固定连接,不便维护与更换,影响封口质量与装置使用寿命,难以满足高效、稳定的真空袋包装需求

Benefits of technology

[0020] 1. By setting up a limit group, the hydraulic rod drives the first clamp to rise and fall. The worker only needs to operate the hydraulic rod to easily open and close the first and second clamps, quickly completing the placement and fixing of vacuum bags, greatly reducing operation time and significantly improving packaging efficiency. At the same time, the through hole in the middle of the joint of the first and second clamps, and the matching method of the connecting pipe and the through hole, create a stable and sealed air extraction passage, ensuring that the connection is not easy to loosen or leak during the air extraction process, effectively improving the reliability of equipment operation, and allowing the air extraction process to be carried out smoothly and efficiently. As long as the air extraction part of the vacuum bag can be adapted to the position between the first and second clamps, effective vacuum packaging operation can be carried out, which can meet the packaging needs of various specifications and types of vacuum bags, greatly expanding the application range of the equipment.

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Patent Text Reader

Abstract

The utility model provides a kind of vacuum bag type packaging sealing device, comprising: support;Workbench, it is fixedly installed on support upper end;Positioning plate, it is fixedly installed on support one side;Sealing group, it is set in workbench upper end;Limiting group, it is set in positioning plate one side.This kind of vacuum bag type packaging sealing device, by setting limiting group and the like structure, limiting group is conveniently operated by hydraulic rod, cooperate through-hole and connecting pipe, improve the efficiency of air extraction and connection stability, also have strong versatility;Heating plate can be detached in sealing group, it is convenient to maintain replacement, heating pipe and sealing plate cooperation realize reliable heat sealing, support rod guarantee pressing plate stability, electric telescopic rod realizes automatic sealing, reduce labor intensity, overall device is efficient, convenient, stable, can guarantee vacuum packaging quality, suitable for a variety of vacuum bag, improve the efficiency and reliability of packaging work.
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Description

Technical Field

[0001] This utility model relates to the field of vacuum bag packaging sealing technology, and more specifically, to a vacuum bag packaging sealing device. Background Technology

[0002] Vacuum bag packaging is a common food packaging method. It involves placing food in a specially designed plastic bag, using a vacuum pump or vacuum packaging machine to remove the air from the bag to create a vacuum environment, and then sealing the bag with a sealing device.

[0003] Traditional sealing devices have many shortcomings. On the one hand, the air extraction process is often prone to loosening and leakage due to unstable connection structure, resulting in low air extraction efficiency and difficulty in quickly achieving the required vacuum level in the vacuum bag. On the other hand, the heating components of the sealing assembly are mostly fixed connections, which are inconvenient to maintain and replace, affecting the sealing quality and the service life of the device, and making it difficult to meet the needs of efficient and stable vacuum bag packaging.

[0004] This invention can improve the efficiency and reliability of packaging work. Utility Model Content

[0005] The present invention aims to solve the technical problems mentioned in the background art and provide a vacuum bag packaging sealing device.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a vacuum bag packaging sealing device, comprising: a support;

[0007] A workbench, which is fixedly installed on the upper end of the bracket;

[0008] A positioning plate is fixedly installed on one side of the bracket;

[0009] A sealing assembly is located at the upper end of the workbench;

[0010] A limiting assembly is disposed on one side of the positioning plate;

[0011] A vacuum pump is fixedly installed inside the bracket, a connecting pipe is fixedly installed at the output end of the vacuum pump, a limit plate is fixedly installed at the upper end of the positioning plate, and one end of the connecting pipe passes through the outside of the positioning plate and is located below the limit plate.

[0012] The limiting assembly includes a clamping plate one and a clamping plate two. The inner sides of the clamping plate one and the clamping plate two can fit together, and a through hole is provided in the middle of the fitting area of ​​the clamping plate one and the clamping plate two.

[0013] A further preferred embodiment: a hydraulic rod is fixedly installed at the bottom of the limiting plate, the output end of the hydraulic rod is fixedly installed at the upper end of the clamping plate one, and the clamping plate two is installed at the upper end of the workbench by bolts.

[0014] A further preferred embodiment: the connecting tube can be embedded inside the through hole, and the through hole is divided into two parts, which are respectively opened on the inner side of clamp plate one and clamp plate two, and the connecting tube is located on the inner side of clamp plate one and clamp plate two.

[0015] A further preferred embodiment: the sealing assembly includes a base plate and a pressure plate. The base plate is fixedly installed on the upper end of the workbench. A heating plate is embedded inside the base plate. The upper end of the heating plate protrudes from the upper end of the base plate. The heating plate and the base plate are detachably connected.

[0016] A further preferred embodiment: both sides of the base plate are bolted with locking blocks, both ends of the heating plate are embedded inside the locking blocks, and heating tubes are provided inside the heating plate.

[0017] A further preferred embodiment: a sealing plate is fixedly installed on one side of the pressure plate, the bottom of the sealing plate is in contact with the upper end of the heating plate, an electric telescopic rod is fixedly installed on the top of the pressure plate, and the upper end of the electric telescopic rod is fixedly installed on the upper end of the positioning plate.

[0018] A further preferred embodiment: a support rod is fixedly installed at the bottom of the pressure plate, the bottom of the support rod is flush with the bottom of the base plate, and the bottom of the support rod is made of rubber.

[0019] Beneficial effects:

[0020] 1. By setting up a limit group, the hydraulic rod drives the first clamp to rise and fall. The worker only needs to operate the hydraulic rod to easily open and close the first and second clamps, quickly completing the placement and fixing of vacuum bags, greatly reducing operation time and significantly improving packaging efficiency. At the same time, the through hole in the middle of the joint of the first and second clamps, and the matching method of the connecting pipe and the through hole, create a stable and sealed air extraction passage, ensuring that the connection is not easy to loosen or leak during the air extraction process, effectively improving the reliability of equipment operation, and allowing the air extraction process to be carried out smoothly and efficiently. As long as the air extraction part of the vacuum bag can be adapted to the position between the first and second clamps, effective vacuum packaging operation can be carried out, which can meet the packaging needs of various specifications and types of vacuum bags, greatly expanding the application range of the equipment.

[0021] 2. Equipped with a sealing assembly and heating tubes inside the heating plate, heat is rapidly generated. When the sealing plate contacts the heating plate, heat is quickly transferred to the vacuum bag opening. Combined with the compression of the sealing plate, this ensures a tight seal, guaranteeing the vacuum packaging effect, effectively preventing air from entering, creating a good storage environment for the contents, and extending the shelf life of the items. The heating plate and base plate are detachably connected and secured with clips, facilitating maintenance and replacement of the heating plate. When the heating plate malfunctions, or when it needs to be replaced with a different size heating plate to accommodate vacuum bags of different thicknesses and materials, there is no need to disassemble the entire sealing assembly. Disassembly is simple; just unscrew the clips on both sides of the base plate to easily replace the heating plate, saving a lot of maintenance time and costs. The support rod at the bottom of the pressure plate is also ingeniously designed. Its bottom is made of rubber, which can provide support and cushioning during the pressing process, preventing the pressure plate from directly and quickly pressing down and impacting the heating plate and other components. It can also increase the friction with the worktable, making the pressure plate more stable during the sealing process, ensuring the accuracy of the sealing, and further improving the sealing quality. Moreover, the raising and lowering of the pressure plate is controlled by an electric telescopic rod, eliminating the need for manual pressing, reducing the labor intensity of workers, and improving the efficiency and consistency of sealing.

[0022] 3. In summary, this vacuum bag packaging sealing device, through the inclusion of a limit assembly and other structures, allows for convenient operation via a hydraulic rod. Combined with through holes and connecting pipes, it enhances vacuuming efficiency and connection stability, while also possessing strong versatility. The heating plate in the sealing assembly is removable for easy maintenance and replacement. The heating tube and sealing plate work together to achieve reliable heat sealing. The support rod ensures the stability of the pressure plate, and the electric telescopic rod enables automated sealing, reducing labor intensity. The overall device is efficient, convenient, and stable, ensuring vacuum packaging quality, suitable for various vacuum bags, and improving the efficiency and reliability of packaging operations. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0024] Figure 2 This is a schematic diagram of the limiting assembly structure of this utility model.

[0025] Figure 3 This is a schematic diagram of the base plate structure of this utility model.

[0026] Figure 4 This is a schematic diagram of the pressure plate structure of this utility model.

[0027] Figures 1-4In the middle: 1. Support; 2. Workbench; 3. Positioning plate; 301. Limiting plate; 302. Hydraulic rod; 4. Sealing assembly; 401. Base plate; 402. Pressure plate; 403. Heating plate; 404. Clamping block; 405. Sealing plate; 406. Support rod; 407. Electric telescopic rod; 5. Limiting assembly; 501. Clamping plate one; 502. Clamping plate two; 503. Through hole; 6. Vacuum pump; 601. Connecting pipe. Detailed Implementation

[0028] The following will refer to the appendix in the embodiments of this utility model. Figures 1-4 The technical solutions in the embodiments of this utility model will be clearly and completely described.

[0029] Please see Figures 1-4 In this embodiment of the present invention, a vacuum bag packaging sealing device includes: a support 1; a workbench 2, which is fixedly installed on the upper end of the support 1; a positioning plate 3, which is fixedly installed on one side of the support 1; a sealing assembly 4, which is disposed on the upper end of the workbench 2; and a limiting assembly 5, which is disposed on one side of the positioning plate 3. A vacuum pump 6 is fixedly installed inside the support 1, and a connecting pipe 601 is fixedly installed at the output end of the vacuum pump 6. A limiting plate 301 is fixedly installed on the upper end of the positioning plate 3, and one end of the connecting pipe 601 passes through the outer side of the positioning plate 3 and is located below the limiting plate 301. The limiting assembly 5 includes a clamping plate 501 and a clamping plate. 502, the inner sides of clamping plate 1 501 and clamping plate 2 502 can fit together, and a through hole 503 is provided through the middle of the fitting part of clamping plate 1 501 and clamping plate 2 502; a hydraulic rod 302 is fixedly installed at the bottom of the limiting plate 301, and the output end of the hydraulic rod 302 is fixedly installed at the upper end of clamping plate 1 501. Clamping plate 2 502 is installed at the upper end of the workbench 2 by bolts; the connecting pipe 601 can be embedded in the through hole 503, and the through hole 503 is divided into two parts, which are respectively opened on the inner sides of clamping plate 1 501 and clamping plate 2 502, and the connecting pipe 601 is located on the inner sides of clamping plate 1 501 and clamping plate 2 502;

[0030] When using this device, after placing the items to be packaged into the vacuum bag, place the vacuum bag on the workbench 2, ensuring the bag opening is positioned appropriately inside the sealing assembly 4, and simultaneously embed the connecting pipe 601 inside the vacuum bag. The outer side of the vacuum bag is located inside the clamping plates 501 and 502. Activate the hydraulic rod 302, which pushes the clamping plate 501 downwards until the inner sides of the clamping plates 501 and 502 are in contact with each other. At this point, the connecting pipe 601 is embedded inside the through hole 503, and one end of the connecting pipe 601 is connected to the bracket. The vacuum pump 6 inside the workbench 2 secures and connects the vacuum bag's evacuation section, forming an evacuation path. Then, the vacuum pump 6 is turned on, and it evacuates the air from inside the vacuum bag through the connecting pipe 601, achieving the required vacuum state. After the vacuum bag reaches a suitable vacuum level, the sealing assembly 4 located on the upper end of the workbench 2 heat-seals the bag opening, sealing the vacuum bag and completing the entire vacuum packaging process. A dedicated limiting assembly 5 allows for quick and accurate connection between the vacuum bag and the vacuum pump 6's connecting pipe. The 601 connection ensures the airtightness of the suction passage, thereby improving suction efficiency and enabling the vacuum bag to quickly reach the required vacuum level. The hydraulic rod 302 drives the clamping plate 501, making the opening and closing of clamping plates 501 and 502 simple and convenient, facilitating quick placement and securing of vacuum bags by workers, reducing operation time and improving packaging efficiency. The through hole 503 in the middle of the mating area of ​​clamping plates 501 and 502, and the way the connecting pipe 601 engages with the through hole 503, ensures the stability of the connection during suction. The process is less prone to loosening or air leakage, improving the reliability of equipment operation. The structural design of this device is applicable to vacuum bag packaging of various specifications and types. As long as the air extraction part of the vacuum bag can be adapted to the position between clamp 501 and clamp 502, effective vacuum packaging operation can be performed, which has strong versatility. The sealing group 4 set at the upper end of the workbench 2 can seal the vacuum bag in time after the vacuum bag reaches the appropriate vacuum level, ensuring the quality of vacuum packaging, so that the packaged items can have a good storage environment and extend the shelf life.

[0031] In this embodiment of the utility model, the sealing assembly 4 includes a base plate 401 and a pressure plate 402. The base plate 401 is fixedly installed on the upper end of the workbench 2. A heating plate 403 is embedded inside the base plate 401, with the upper end of the heating plate 403 protruding from the upper end of the base plate 401. The heating plate 403 and the base plate 401 are detachably connected. Both sides of the base plate 401 are bolted with locking blocks 404. Both ends of the heating plate 403 are embedded inside the locking blocks 404, and a heating tube is provided inside the heating plate 403. A sealing plate 405 is fixedly installed on one side of the pressure plate 402. The bottom of the sealing plate 405 contacts the upper end of the heating plate 403. An electric telescopic rod 407 is fixedly installed on the top of the pressure plate 402, with the upper end of the electric telescopic rod 407 fixedly installed on the upper end of the positioning plate 3. A support rod 406 is fixedly installed on the bottom of the pressure plate 402. The bottom of the support rod 406 is flush with the bottom of the base plate 401, and the bottom of the support rod 406 is made of rubber.

[0032] When the vacuum bag needs to be sealed, the electric telescopic rod 407 is activated, which moves the pressure plate 402 downward. The support rod 406 at the bottom of the pressure plate 402 first contacts the worktable 2, providing support and cushioning to prevent the pressure plate 402 from directly and quickly pressing down and impacting components such as the heating plate 403. Subsequently, the sealing plate 405 on the pressure plate 402 contacts the heating plate 403, which is embedded inside the base plate 401 and protrudes at the top. The heating tube inside the heating plate 403 is energized and heats up, transferring heat to the heating plate 403. Plate 403 heats the opening of the vacuum bag it contacts, while sealing plate 405, in conjunction with heating plate 403, squeezes the opening, thus achieving a heat-sealing operation on the vacuum bag opening. After sealing, electric telescopic rod 407 drives pressure plate 402 to return to its original position. If heating plate 403 needs to be replaced, unscrew the clips 404 on both sides of base plate 401, remove the old heating plate 403 from between clips 404 and base plate 401, insert the new heating plate 403 into the clips 404 at both ends, and reinstall the clips 404. The heating plate 403 has a heating tube inside, which can quickly generate heat. Together with the sealing plate 405, it heats and squeezes the opening of the vacuum bag to seal it tightly, ensuring the effectiveness of vacuum packaging and preventing air from entering and affecting the preservation of the contents. The heating plate 403 and the base plate 401 are detachably connected and fixed by a locking block 404. When the heating plate 403 malfunctions or needs to be replaced with a different specification heating plate 403 to accommodate vacuum bags of different thicknesses and materials, the operation is simple and convenient, without requiring any changes to the entire sealing assembly 4. Disassembly saves maintenance time and costs; the base plate 401 is fixedly installed on the upper end of the workbench 2, providing a stable installation base for the heating plate 403; the bottom of the support rod 406 is made of rubber, which can not only provide support and buffer during the pressing of the pressure plate 402, but also increase the friction with the workbench 2, making the pressure plate 402 more stable during the sealing process and ensuring the accuracy of the sealing; the lifting and lowering of the pressure plate 402 is controlled by the electric telescopic rod 407, eliminating the need for manual pressing, reducing the labor intensity of workers, and improving the efficiency and consistency of sealing.

Claims

1. A vacuum bag packaging sealing device, characterized in that, include: Support (1); The workbench (2) is fixedly installed on the upper end of the bracket (1); Positioning plate (3), which is fixedly installed on one side of the bracket (1); Sealing assembly (4), which is located at the upper end of the workbench (2); Limiting group (5), which is disposed on one side of the positioning plate (3); A vacuum pump (6) is fixedly installed on the inner side of the bracket (1), and a connecting pipe (601) is fixedly installed at the output end of the vacuum pump (6). A limiting plate (301) is fixedly installed on the upper end of the positioning plate (3). One end of the connecting pipe (601) passes through the outside of the positioning plate (3) and is located below the limiting plate (301). The limiting group (5) includes a clamping plate one (501) and a clamping plate two (502). The inner sides of the clamping plate one (501) and the clamping plate two (502) can fit together, and a through hole (503) is provided in the middle of the fitting part of the clamping plate one (501) and the clamping plate two (502).

2. The vacuum bag packaging sealing device according to claim 1, characterized in that: A hydraulic rod (302) is fixedly installed at the bottom of the limiting plate (301). The output end of the hydraulic rod (302) is fixedly installed at the upper end of the clamping plate one (501). The clamping plate two (502) is installed at the upper end of the workbench (2) by bolts.

3. The vacuum bag packaging sealing device according to claim 2, characterized in that: The connecting tube (601) can be embedded inside the through hole (503), and the through hole (503) is divided into two parts, which are respectively opened inside the first clamping plate (501) and the second clamping plate (502), and the connecting tube (601) is located inside the first clamping plate (501) and the second clamping plate (502).

4. The vacuum bag packaging sealing device according to claim 3, characterized in that: The sealing assembly (4) includes a base plate (401) and a pressure plate (402). The base plate (401) is fixedly installed on the upper end of the workbench (2). A heating plate (403) is embedded inside the base plate (401). The upper end of the heating plate (403) protrudes from the upper end of the base plate (401). The heating plate (403) and the base plate (401) are detachably connected.

5. A vacuum bag packaging sealing device according to claim 4, characterized in that: Both sides of the base plate (401) are bolted with clamping blocks (404), and both ends of the heating plate (403) are embedded inside the clamping blocks (404). The heating plate (403) is provided with heating tubes inside.

6. A vacuum bag packaging sealing device according to claim 5, characterized in that: A sealing plate (405) is fixedly installed on one side of the pressure plate (402). The bottom of the sealing plate (405) is in contact with the upper end of the heating plate (403). An electric telescopic rod (407) is fixedly installed on the top of the pressure plate (402). The upper end of the electric telescopic rod (407) is fixedly installed on the upper end of the positioning plate (3).

7. A vacuum bag packaging sealing device according to claim 6, characterized in that: A support rod (406) is fixedly installed at the bottom of the pressure plate (402). The bottom of the support rod (406) is flush with the bottom of the base plate (401). The bottom of the support rod (406) is made of rubber.