Workbench of vacuum packaging machine

Abstract

The utility model provides a working table of a vacuum packaging machine, the top of the working table is provided with a heating strip and a sealing cover, the working table further comprises a cover plate and a bottom plate, the top of the working table is provided with a groove, the groove is close to the heating strip and is parallel to the heating strip, and the sealing cover is arranged on the cover plate. A groove is formed in the top face of the workbench, the cover plate is arranged on the top face of the workbench in a sliding mode and used for closing or opening the groove, the bottom plate is horizontally arranged in the groove, the size of the bottom plate is matched with that of the groove, elastic hanging plates are fixedly arranged on the two sides of the top face of the bottom plate, one side of each elastic hanging plate is attached to the inner wall of the groove, and the other side of each elastic hanging plate is attached to the inner wall of the groove. A plurality of positioning holes are sequentially formed in the side wall of the groove in the vertical direction at intervals, positioning pins matched with the positioning holes are fixedly arranged at the tops of the outer walls of the two elastic hanging plates, and pull rings are rotationally connected to the upper portions of the opposite sides of the two elastic hanging plates. The problem that the packaging bag can only be placed vertically or horizontally is solved, and universality is improved.

Description

Technical Field

[0001] This utility model relates to the field of packaging machine technology, and in particular to a worktable for a vacuum packaging machine. Background Technology

[0002] Vacuum packaging technology is widely used in numerous industries, including food, pharmaceuticals, and electronics, to extend product shelf life and protect product quality. Traditional vacuum compressors offer limited options for bag placement, typically only allowing for either vertical or horizontal mounting. While vertical placement is advantageous for packaging liquids or easily spilled items, reducing leakage risk, it can lead to inefficient packaging of flat or large-area products due to inefficient space utilization. Horizontal placement provides better support for easily deformable items, but for fluid materials, uneven material distribution and incomplete packaging can occur during vacuuming. With the diversification of market demands and increasing production efficiency requirements, vacuum compressors with a single placement method are insufficient to meet the packaging needs of various products. An excessively large vacuum cavity volume also negatively impacts the efficiency of the vacuum packaging machine. Therefore, optimization of vacuum packaging machines is necessary. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a worktable for a vacuum packaging machine, which solves the problem that packaging bags can only be placed vertically or horizontally in existing technologies.

[0004] According to an embodiment of this utility model, a worktable for a vacuum packaging machine includes a heating strip and a sealing cover on the top of the worktable, as well as a cover plate and a base plate. A groove is provided on the top of the worktable, the groove being close to and parallel to the heating strip. The cover plate is slidably disposed on the top surface of the worktable and used to close or open the groove. The base plate is horizontally disposed inside the groove, and the size of the base plate is adapted to the groove. Elastic hanging plates are fixedly disposed on both sides of the top surface of the base plate, with one side of the elastic hanging plate fitting against the inner wall of the groove. A plurality of positioning holes are sequentially spaced along the vertical direction on the side wall of the groove. Positioning pins adapted to the positioning holes are fixedly disposed on the top of the outer walls of the two elastic hanging plates. Pull rings are rotatably connected above the opposite sides of the two elastic hanging plates.

[0005] The technical principle of this utility model is as follows: a groove is provided on the workbench to facilitate the vertical placement of the packaging table, and a cover plate is used to seal the groove when the packaging bag is placed horizontally.

[0006] Preferably, a sliding groove is provided on the short side of the groove, the sliding groove is parallel to the short side of the groove, the length of the sliding groove is greater than or equal to twice the length of the short side of the groove, and a sliding strip is provided on the bottom of the cover plate, the sliding strip is adapted to the sliding groove.

[0007] Preferably, threaded holes are provided at both ends of the sliding groove, and screw mounting holes that are adapted to the threaded holes are provided on the cover plate.

[0008] Preferably, an elastic rod is fixedly connected to the side wall of the groove near the middle of the worktable. The elastic rod is horizontally set and perpendicular to the side wall of the groove. A clamping plate is fixedly set at the other end of the elastic rod. The clamping plate is vertically set and the upward side of the clamping plate is inclined toward the elastic rod.

[0009] Preferably, the elastic rod includes a fixed rod, a spring, and a sliding rod. One end of the fixed rod is threaded to the side wall of the groove, and the other end of the fixed rod is provided with a sliding hole. The other end of the sliding rod is adapted to the sliding hole. The spring is disposed in the sliding hole, and one end of the spring is fixedly connected to the bottom of the sliding hole, while the other end of the spring is fixedly connected to the end of the sliding rod.

[0010] Preferably, the clamping plate is a long strip structure, and several elastic rods are connected to the clamping plate in sequence.

[0011] Compared to existing technologies, this invention offers the following advantages: By placing the packaging bag vertically into the groove and then vacuum-sealing the packaging table, this invention avoids requiring an enlarged cavity inside the vacuum packaging machine. When the cover slides to close the groove, the packaging bag can be placed horizontally on the top surface of the worktable for vacuum packaging. Furthermore, by adjusting the position of the base plate within the groove, this invention ensures that the openings of packaging bags at different heights precisely correspond to the heat-sealing structure on the top surface. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0013] Figure 2 This is a schematic diagram showing the position of the sliding groove of this utility model.

[0014] Figure 3 This is a schematic diagram of the elastic rod structure of this utility model.

[0015] In the above attached diagram: 1. Sealing cover; 2. Cover plate; 3. Groove; 4. Base plate; 5. Positioning hole; 6. Positioning pin; 7. Elastic hanging plate; 8. Pull ring; 9. Fixing rod; 10. Sliding rod; 11. Spring; 12. Clamping plate; 13. Sliding groove; 14. Workbench; 15. Heating strip; 16. Settling zone. Detailed Implementation

[0016] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0017] likeFigure 1 As shown in the figure, this utility model embodiment proposes a worktable for a vacuum packaging machine. The top surface of the worktable 14 is provided with a heating strip 15 and a sealing cover 1. The heating strip 15 is rotatably connected to the worktable 14 via a connecting rod, allowing it to move vertically to facilitate pressing the opening of the packaging bag under the heating strip 15. A vacuum pump is installed inside the worktable 14. When the sealing cover 1 and the worktable 14 form a sealed space, the vacuum pump extracts the gas from the sealed space, and the heating strip 15 heats the gas, thus sealing the opening of the packaging bag. This utility model also includes a cover plate 2 and a bottom plate 4. The top surface of the worktable 14 is provided with a groove 3, which is close to and parallel to the heating strip 15. After the packaging bag is placed inside the groove 3, the opening of the packaging bag can be moved directly under the heating strip 15 and pressed down. The cover plate 2 is slidably disposed on the top surface of the worktable 14 and is used to close or open the groove 3. When the groove 3 is closed, the amount of air pumped is reduced to improve efficiency. The base plate 4 is horizontally positioned inside the groove 3, and its dimensions are adapted to the groove 3. Elastic hanging plates 7 are fixedly mounted on both sides of the top surface of the base plate 4, with one side of each elastic hanging plate 7 fitting against the inner wall of the groove 3. Several positioning holes 5 are spaced vertically along the side wall of the groove 3. Positioning pins 6, matching the positioning holes 5, are fixedly mounted on the top of the outer walls of both elastic hanging plates 7. Pull rings 8 are rotatably connected above the opposite sides of the two elastic hanging plates 7. When the two pull rings 8 are pulled, the elastic hanging plates 7 bend, causing the positioning pins 6 on the elastic hanging plates 7 to disengage from the positioning holes 5. After moving the base plate 4 to a vertical position, the positioning pins 6 are then inserted back into the corresponding positioning holes 5. By changing the position of the base plate 4, it can accommodate packaging tables of different heights, thereby improving the versatility of the packaging machine.

[0018] like Figure 3 As shown, preferably, the short side of the groove 3 is provided with a sliding groove 13, which is parallel to the short side of the groove 3. The length of the sliding groove 13 is greater than or equal to twice the length of the short side of the groove 3. A sliding strip is provided at the bottom of the cover plate 2, and the sliding strip is adapted to the sliding groove 13. In this embodiment, the sliding groove 13 is a T-shaped groove, which serves as a guide and prevents the cover plate 2 from detaching from the worktable 14. In this embodiment, the top surface of the worktable 14 is provided with a settling area 14, and the sliding groove 13 and the groove 3 are located on the bottom surface of the settling area 14. The thickness of the settling area 14 is the same as the thickness of the worktable 14. The settling area 14 corresponds to the range of motion of the cover plate 2.

[0019] Preferably, threaded holes are provided at both ends of the sliding groove 13, and screw mounting holes adapted to the threaded holes are provided on the cover plate 2. In this embodiment, the top of the screw is flush with the top surface of the cover plate 2. When the cover plate 2 moves to the end of the sliding groove 13, the screw is screwed into the corresponding threaded hole, thereby fixing the cover plate 2 and the worktable 14 in a packaged state and preventing the cover plate 2 from sliding and affecting the packaging work.

[0020] Preferably, an elastic rod is fixedly connected to the side wall of the groove 3 near the middle of the worktable 14. The elastic rod is horizontally positioned and perpendicular to the side wall of the groove 3. A clamping plate 12 is fixedly positioned at the other end of the elastic rod. The clamping plate 12 is vertically positioned, with its upward-facing side inclined towards the elastic rod. When the thickness of the packaging bag is less than the thickness of the groove 3, the clamping plate 12 presses the packaging bag against the side wall of the groove 3, ensuring that the opening of the packaging bag is properly heated and sealed by the heating element.

[0021] like Figure 2 As shown, preferably, the elastic rod includes a fixed rod 9, a spring 11, and a sliding rod 10. One end of the fixed rod 9 is threaded to the side wall of the groove 3, and the other end of the fixed rod 9 is provided with a sliding hole. The other end of the sliding rod 10 is adapted to the sliding hole. The spring 11 is disposed in the sliding hole, with one end of the spring 11 fixedly connected to the bottom of the sliding hole and the other end of the spring 11 fixedly connected to the end of the sliding rod 10. By moving the sliding rod 10 within the sliding hole, the distance between the clamping plate 12 and the side of the groove 3 can be adjusted.

[0022] Preferably, the clamping plate 12 has a long strip structure, and several elastic rods are connected to the clamping plate 12 in sequence. In this embodiment, the groove 3 is long and strip-shaped, and several packaging bags can be placed in the groove 3. The long and strip-shaped clamping plate 12 can clamp a large number of packaging bags.

[0023] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A worktable for a vacuum packaging machine, wherein a heating strip (15) and a sealing cover (1) are provided on the top of the worktable (14), characterized in that: It also includes a cover plate (2) and a base plate (4). The top of the workbench (14) is provided with a groove (3). The groove (3) is close to the heating strip (15) and parallel to the heating strip (15). The cover plate (2) is slidably disposed on the top surface of the workbench (14) and is used to close or open the groove (3). The base plate (4) is horizontally disposed inside the groove (3). The size of the base plate (4) is adapted to the groove (3). Elastic hanging plates (7) are fixedly disposed on both sides of the top surface of the base plate (4). One side of the elastic hanging plate (7) is in contact with the inner wall of the groove (3). Several positioning holes (5) are spaced apart in the vertical direction on the side wall of the groove (3). Positioning pins (6) adapted to the positioning holes (5) are fixedly disposed on the top of the outer wall of the two elastic hanging plates (7). Pull rings (8) are rotatably connected above the opposite side of the two elastic hanging plates (7).

2. The worktable of a vacuum packaging machine as described in claim 1, characterized in that: The groove (3) is provided with a sliding groove (13) on its short side. The sliding groove (13) is parallel to the short side of the groove (3). The length of the sliding groove (13) is greater than or equal to twice the length of the short side of the groove (3). The bottom of the cover plate (2) is provided with a sliding strip, which is adapted to the sliding groove (13).

3. The worktable of a vacuum packaging machine as described in claim 2, characterized in that: Both ends of the sliding groove (13) are provided with threaded holes, and the cover plate (2) is provided with screw mounting holes that are compatible with the threaded holes.

4. The worktable of a vacuum packaging machine as described in claim 1, characterized in that: An elastic rod is fixedly connected to the side wall of the groove (3) near the middle of the worktable (14). The elastic rod is horizontally set and perpendicular to the side wall of the groove (3). A clamping plate (12) is fixedly set at the other end of the elastic rod. The clamping plate (12) is vertically set and the upward side of the clamping plate (12) is inclined toward the elastic rod.

5. The worktable of a vacuum packaging machine as described in claim 4, characterized in that: The elastic rod includes a fixed rod (9), a spring (11), and a sliding rod (10). One end of the fixed rod (9) is threaded to the side wall of the groove (3), and the other end of the fixed rod (9) is provided with a sliding hole. The other end of the sliding rod (10) is adapted to the sliding hole. The spring (11) is disposed in the sliding hole. One end of the spring (11) is fixedly connected to the bottom of the sliding hole, and the other end of the spring (11) is fixedly connected to the end of the sliding rod (10).

6. The worktable of a vacuum packaging machine as described in claim 5, characterized in that: The clamp (12) is a long strip structure, and several elastic rods are connected to the clamp (12) in sequence.

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