A vacuum packaging apparatus

Abstract

The utility model discloses a vacuum packing plant, including frame, the inside of frame is equipped with multiple sets of conveying roller through bearing, and the side wall of multiple sets conveying roller is equipped with conveying belt, one side fixed mounting of frame has installed cover and electric control box. Advantageous effect: the utility model is provided with conveying roller and conveying belt, and this vacuum packing plant realizes automatic conveying of packing bag through conveying roller, conveying belt cooperation self -lock type servo motor, and manual one by one transmission is not needed to staff, and simultaneously with the help of first electric telescopic link, moving plate, clamping plate and spring and T -shaped pole, can automatic fixed packing bag, replace traditional manual fixed mode, reduce operation step and time, improve packing efficiency, and the accommodation slot on clamping plate can adapt to different specifications packing bag, increase equipment applicability, in addition, the combination of second electric telescopic link and spacing plate can be positioned to packing bag conveying position, guarantee subsequent fixed, sealing operation accuracy, further optimize operation convenience.

Description

Technical Field

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

[0002] Vacuum packing machines are specialized packaging equipment that create a vacuum or low-oxygen environment inside packaging containers by extracting air and quickly sealing them. They are widely used in food, electronic products, medical devices and other fields, and can achieve vacuum sealing of electronic components. In practical use, they have advantages such as extending product shelf life, structural stability and good packaging effect.

[0003] Existing vacuum packaging machines require the packaging bags to be manually secured before vacuuming and sealing can be performed. This requires staff to manually secure multiple packaging bags one by one, which involves many steps and takes a lot of time. Utility Model Content

[0004] (a) Technical problems to be solved To address the shortcomings of existing technologies, this invention provides a vacuum packaging device that improves vacuum packaging efficiency, thereby solving the problems mentioned in the background section.

[0005] (II) Technical Solution To achieve the aforementioned advantages in improving vacuum packaging efficiency, the specific technical solution adopted by this utility model is as follows: A vacuum packaging device includes a frame, inside which multiple sets of conveyor rollers are installed via bearings, and conveyor belts are sleeved on the side walls of the multiple sets of conveyor rollers. A mounting cover and an electrical control box are fixedly installed on one side of the frame. The electrical control box contains a controller, a synchronization controller, a timer, and a battery. A self-locking servo motor is fixedly installed on the surface of the mounting cover. A first gantry and a second gantry are fixedly installed on the upper part of the frame. The frame has a first electric telescopic rod and a second electric telescopic rod fixedly inserted through both sides. A movable plate is fixedly installed at the telescopic end of each of the two sets of first electric telescopic rods. Two sets of T-shaped rods slide through the adjacent surfaces of the two sets of movable plates. A clamping plate is fixedly installed at one end of each of the two sets of T-shaped rods on the same side. Springs are sleeved on the side walls of all four sets of T-shaped rods. A clearance groove is provided on the facing surfaces of the two sets of clamping plates. An electric heating plate is fixedly installed on the adjacent surfaces of the two sets of movable plates. A limit plate is fixedly installed at the telescopic end of each of the two sets of second electric telescopic rods.

[0006] Furthermore, a fourth electric telescopic rod is fixedly inserted through both sides of the second gantry frame. A frame plate is fixedly installed at the telescopic end of both sets of the fourth electric telescopic rods, and an air pump is fixedly installed on the inner wall of both sets of the frame plates. An air guide pipe is snapped into the output end of both sets of the air pumps. A first solenoid valve is provided on the side wall of both sets of the air guide pipes, and an air storage plate is fixedly sleeved at the opposite ends of both sets of the air guide pipes.

[0007] Furthermore, multiple unidirectional suction heads penetrate the adjacent surfaces of the two sets of gas storage plates.

[0008] Furthermore, a first infrared transmitter and a second infrared transmitter are fixedly installed on one side of the inside of the rack, and a first infrared receiver and a second infrared receiver are fixedly installed on the other side of the inside of the rack. The first infrared transmitter, the second infrared transmitter, the first infrared receiver, and the second infrared receiver are electrically connected to the controller via wires.

[0009] Furthermore, two sets of guide rods slide through both sides of the frame, and one end of each set of guide rods on the same side is fixedly connected to a set of limiting plates on the same side.

[0010] Furthermore, the controller is electrically connected to the battery, the synchronization controller, the timer, the self-locking servo motor, the two sets of the second electric telescopic rods, and the two sets of the electric heating plates via wires, and the synchronization controller is electrically connected to the two sets of the first electric telescopic rods via wires.

[0011] Furthermore, the output end of the self-locking servo motor is connected to the last set of conveyor rollers via a coupling.

[0012] Furthermore, a third electric telescopic rod is fixedly inserted through the upper part of the first gantry frame, and a frame is fixedly installed at the telescopic end of the third electric telescopic rod. A vacuum pump is fixedly installed on the inner bottom surface of the frame. A vacuum tube is snapped into the output end of the vacuum pump, and a second solenoid valve is provided on the side wall of the vacuum tube. The third electric telescopic rod, the vacuum pump, and the second solenoid valve are electrically connected to the controller via wires.

[0013] Furthermore, four sets of support legs are welded to the lower part of the frame.

[0014] (III) Beneficial Effects Compared with the prior art, the present invention provides a vacuum packaging device with the following advantages: (1) This utility model is equipped with a conveyor roller and a conveyor belt. The vacuum packaging equipment realizes automatic conveying of packaging bags by means of the conveyor roller and conveyor belt in conjunction with a self-locking servo motor, eliminating the need for manual transfer by staff. At the same time, with the help of the first electric telescopic rod, the moving plate, the clamping plate, the spring and the T-shaped rod, the packaging bags can be automatically fixed, replacing the traditional manual fixing method, reducing operation steps and time, improving packaging efficiency, and the clearance groove on the clamping plate can adapt to different specifications of packaging bags, increasing the applicability of the equipment. In addition, the combination of the second electric telescopic rod and the limiting plate can limit the conveying position of the packaging bags, ensuring the accuracy of subsequent fixing and sealing operations, and further optimizing the convenience of operation.

[0015] (2) This utility model is equipped with a second gantry frame. The equipment moves the frame plate, air pump, air storage plate and one-way suction head through the fourth electric telescopic rod, so that the one-way suction head can fit the opening of the packaging bag. The air pump pre-suctions the opening of the packaging bag through the air guide pipe, air storage plate and one-way suction head, which can easily open the opening of the packaging bag. This solves the problem that the traditional no-opening structure makes it difficult for workers to open the bag opening, and makes it convenient to put electronic components into the packaging bag. At the same time, the first solenoid valve can accurately control the suction process, improve the controllability of operation, and lay a good foundation for the subsequent vacuum packaging process. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of a vacuum packaging device according to an embodiment of the present utility model; Figure 2 This is a rear view of a vacuum packaging device according to an embodiment of the present utility model; Figure 3 This is a structural schematic diagram of the frame plate according to an embodiment of the present utility model; Figure 4 This is a schematic diagram of the structure of the clamping plate according to an embodiment of the present utility model; Figure 5 This is a schematic diagram of the frame structure according to an embodiment of the present utility model; Figure 6 This is a structural schematic diagram of the first gantry frame according to an embodiment of the present utility model; Figure 7 According to the embodiments of this utility model Figure 4 A magnified view of A in the middle.

[0018] In the picture: 1. Frame; 2. Conveyor roller; 3. Conveyor belt; 4. Mounting cover; 5. Self-locking servo motor; 6. First gantry frame; 7. Second gantry frame; 8. First electric telescopic rod; 9. Second electric telescopic rod; 10. Moving plate; 11. T-shaped rod; 12. Clamping plate; 13. Clearance groove; 14. Spring; 15. Electric heating plate; 16. Guide rod; 17. Limiting plate; 18. First infrared emitter; 19. Second infrared emitter; 20. First infrared receiver; 21. Second infrared receiver; 22. Third electric telescopic rod; 23. Frame plate; 24. Air pump; 25. Air guide pipe; 26. Air storage tray; 27. One-way suction head; 28. First solenoid valve; 29. ​​Fourth electric telescopic rod; 30. Frame; 31. Vacuum pump; 32. Vacuum tube; 33. Second solenoid valve. Detailed Implementation

[0019] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0020] According to an embodiment of the present invention, a vacuum packaging device is provided.

[0021] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. Please refer to the accompanying drawings for details. Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 7A vacuum packaging device includes a frame 1. Multiple sets of conveyor rollers 2 are mounted inside the frame 1 via bearings, and conveyor belts 3 are sleeved on the side walls of the multiple sets of conveyor rollers 2. A mounting cover 4 and an electrical control box are fixedly mounted on one side of the frame 1. The electrical control box houses a controller, a synchronization controller, a timer, and a battery. A self-locking servo motor 5 is fixedly mounted on the surface of the mounting cover 4. A first gantry frame 6 and a second gantry frame 7 are fixedly mounted on the upper part of the frame 1. First electric telescopic rods 8 and second electric telescopic rods 9 are fixedly inserted through both sides of the frame 1. Movable plates 10 are fixedly mounted on the telescopic ends of both sets of first electric telescopic rods 8. Two sets of T-shaped rods 11 slide through the adjacent surfaces of both sets of movable plates 10. Clamping plates 12 are fixedly mounted on one end of the two sets of T-shaped rods 11 on the same side. Springs 14 are sleeved on the side walls of all four sets of T-shaped rods 11. The clamping plates 12... Both sides of the moving plates 10 are provided with clearance grooves 13. Electric heating plates 15 are fixedly installed on the close surfaces of the two sets of moving plates 10. Limiting plates 17 are fixedly installed on the telescopic ends of the two sets of second electric telescopic rods 9. The operation of the self-locking servo motor 5 can drive the conveyor roller 2 to rotate, thereby making the conveyor belt 3 rotate to realize the conveying of the packaging bag. The extension and retraction of the first electric telescopic rod 8 can push the moving plate 10 to move. The moving plate 10 drives the T-shaped rod 11 and the clamping plate 12 to move. The spring 14 can make the clamping plate 12 stably clamp the packaging bag through the elastic action. The clearance groove 13 provides a through space for the vacuum tube 32. The extension and retraction of the second electric telescopic rod 9 can push the limiting plate 17 to move and position the packaging bag. The electric heating plate 15 can heat seal the packaging bag. The controller can receive signals and control the operation of each component. The synchronous controller ensures that the two sets of first electric telescopic rods 8 move synchronously. The timer can set the operation time such as heat sealing. The battery powers the equipment.

[0022] Please see Figure 1 , Figure 2 and Figure 3 The second gantry 7 has a fourth electric telescopic rod 29 fixedly inserted on both sides. The telescopic ends of the two sets of fourth electric telescopic rods 29 are fixedly installed with frame plates 23, and the inner walls of the two sets of frame plates 23 are fixedly installed with air pumps 24. The output ends of the two sets of air pumps 24 are snapped with air guide pipes 25. The side walls of the two sets of air guide pipes 25 are provided with first solenoid valves 28. The opposing ends of the two sets of air guide pipes 25 are fixedly sleeved with air storage trays 26. The extension and retraction of the fourth electric telescopic rods 29 can drive the frame plates 23, air pumps 24, air guide pipes 25 and air storage trays 26 to move and adjust the position of the air storage trays 26. After the air pumps 24 are started, they can draw out the air inside the air storage trays 26 through the air guide pipes 25 to form a negative pressure environment. The first solenoid valves 28 can control the opening and closing of the air guide pipes 25, thereby controlling the airflow transmission between the air pumps 24 and the air storage trays 26, and working with the air storage trays 26 to open the packaging bag opening.

[0023] Please see Figure 3 Multiple one-way suction heads 27 penetrate the adjacent surfaces of the two sets of air storage trays 26. The one-way suction heads 27 are connected to the air storage trays 26. The negative pressure generated by the air pump 24 can be transmitted to the one-way suction heads 27 through the air storage trays 26. The one-way suction heads 27 adsorb the two sides of the packaging bag opening through the suction action, opening the packaging bag opening. Its one-way structure can prevent air from entering in reverse, ensuring a stable opening effect.

[0024] Please see Figure 5 A first infrared transmitter 18 and a second infrared transmitter 19 are fixedly installed on one side of the inside of the frame 1, and a first infrared receiver 20 and a second infrared receiver 21 are fixedly installed on the other side of the inside of the frame 1. The first infrared transmitter 18, the second infrared transmitter 19, the first infrared receiver 20 and the second infrared receiver 21 are electrically connected to the controller via wires. The first infrared transmitter 18 and the second infrared transmitter 19 can emit detection signals, and the first infrared receiver 20 and the second infrared receiver 21 receive the signals accordingly. The controller controls the start and stop of other components of the equipment according to the signals, so as to realize accurate detection of the position of the packaging bag and subsequent operation linkage.

[0025] Please see Figure 1 , Figure 2 and Figure 4 Two sets of guide rods 16 slide through both sides of the frame 1. One end of the two sets of guide rods 16 on the same side is fixedly connected to one set of limiting plates 17 on the same side. The guide rods 16 and the limiting plates 17 are fixed. When the second electric telescopic rod 9 pushes the limiting plate 17 to move, the guide rods 16 can slide along the frame 1, which plays a guiding role in the moving direction of the limiting plate 17, preventing the limiting plate 17 from deviating during the movement and ensuring the accuracy of the positioning of the packaging bag by the limiting plate 17.

[0026] Please see Figure 1 and Figure 2 The controller is electrically connected to the battery, the synchronization controller, the timer, the self-locking servo motor 5, the two sets of the second electric telescopic rods 9 and the two sets of electric heating plates 15 via wires. The synchronization controller is electrically connected to the two sets of the first electric telescopic rods 8 via wires. The controller control circuit can be implemented by simple programming by those skilled in the art and is common knowledge in the field. It is only used and not modified, so the control method and circuit connection will not be described in detail.

[0027] Please see Figure 1The output end of the self-locking servo motor 5 is connected to the last set of conveyor rollers 2 via a coupling. After the self-locking servo motor 5 starts, the power at its output end is transmitted to the last set of conveyor rollers 2 via the coupling, causing the conveyor rollers 2 to rotate. Then, through the cooperation between multiple sets of conveyor rollers 2, the conveyor belt 3 is made to run, realizing the conveying of packaging bags. The self-locking function can keep the output end fixed when the servo motor stops, preventing the conveyor rollers 2 from rotating randomly.

[0028] Please see Figure 6 A third electric telescopic rod 22 is fixedly inserted through the upper part of the first gantry frame 6, and a frame 30 is fixedly installed at the telescopic end of the third electric telescopic rod 22. A vacuum pump 31 is fixedly installed on the bottom surface of the frame 30. A vacuum tube 32 is snapped into the output end of the vacuum pump 31, and a second solenoid valve 33 is provided on the side wall of the vacuum tube 32. The third electric telescopic rod 22, the vacuum pump 31, and the second solenoid valve 33 are electrically connected to the controller through wires. The extension and retraction of the third electric telescopic rod 22 can drive the frame 30, the vacuum pump 31, and the vacuum tube 32 to move and adjust the position of the vacuum tube 32. After the vacuum pump 31 is started, it can extract air from the packaging bag through the vacuum tube 32 to achieve vacuum packaging. The second solenoid valve 33 can control the opening and closing of the vacuum tube 32. In conjunction with the start and stop of the vacuum pump 31, it can precisely control the vacuuming process. The controller controls the operation of the third electric telescopic rod 22, the vacuum pump 31, and the second solenoid valve 33 through wires to achieve coordination with other operation steps.

[0029] Please see Figure 1 and Figure 2 The lower part of the frame 1 is welded with four sets of support legs. The four sets of support legs are fixed to the frame 1 by welding, which supports the frame 1, keeps the frame 1 at a stable working height, avoids the frame 1 from directly contacting the ground and causing wear, and ensures the stability of the equipment during operation and prevents the equipment from tipping over.

[0030] Working principle: First, the staff places the electronic components to be packaged in the operating area, then starts the equipment. Powered by the battery in the control box, the controller first controls the extension of the fourth electric telescopic rods 29 on both sides of the second gantry 7. The fourth electric telescopic rods 29 drive the frame plate 23 and the air pump 24 and air guide pipe 25 on the inner wall of the frame plate 23 to move synchronously, so that the two sets of air storage trays 26 are brought closer to each other to the appropriate distance for the packaging bag size. This ensures that the multiple sets of one-way suction heads 27 on the near side of the air storage trays 26 can be aligned with both sides of the packaging bag opening. Then, the controller starts the air pump 24 and opens the first solenoid valve 28 on the side wall of the air guide pipe 25. After the air pump 24 starts, it generates negative pressure suction, which is transmitted to the air storage tray 26 through the air guide pipe 25, thereby causing the multiple sets of one-way suction heads 27 to produce suction, which is directed at the packaging bag opening. Adsorption occurs from both sides, using negative pressure suction to stably open the packaging bag opening. Workers can then quickly place electronic components into the opened bag. After placement, the controller stops the air pump 24 and closes the first solenoid valve 28, eliminating the suction of the one-way suction head 27. Simultaneously, the controller retracts the fourth electric telescopic rod 29, moving the air storage plate 26, air pump 24, and other components away from the packaging bag. The positions of the two sets of limit plates 17 are then adjusted according to the bag's specifications. The controller controls the extension and retraction of the second electric telescopic rod 9 to adjust the position of the limit plates 17. After adjustment, the worker places the processed packaging bag onto the conveyor belt 3. The controller then starts the self-locking servo motor 5, whose output drives the last set of... The conveyor roller 2 rotates, driving the conveyor belt 3 to begin conveying the packaging bags. During this process, the second infrared transmitter 19 on one side of the frame 1 emits a detection signal, and the second infrared receiver 21 on the other side receives the signal. When the packaging bag moves between the second infrared transmitter 19 and the second infrared receiver 21, the second infrared receiver 21 is blocked and cannot receive the signal. The second infrared receiver 21 then transmits an interrupt signal to the controller. Upon receiving the signal, the controller immediately stops the self-locking servo motor 5 and simultaneously extends two sets of first electric telescopic rods 8 and one set of third electric telescopic rods 22. The third electric telescopic rod 22 drives the frame 30 and the vacuum tubes inside the frame 30. The vacuum pump 31 and vacuum tube 32 move downwards, and the two sets of first electric telescopic rods 8 drive the moving plates 10 on both sides to move closer to the packaging bag. When the frame 30 moves to the preset position between the first infrared transmitter 18 and the first infrared receiver 20, the vacuum tube 32 is inserted into the packaging bag. At this time, the controller controls the vacuum pump 31 and the electric heating plate 15 to start, and opens the second solenoid valve 33 on the side wall of the vacuum tube 32. The vacuum pump 31 begins to extract air from the packaging bag through the vacuum tube 32. At the same time, the moving plate 10 drives the clamping plate 12 to continue to move closer to the packaging bag until the two sets of clamping plates 12 clamp the two sides of the bag opening. The clamping force of the clamping plate 12 makes the vacuum tube 32 fit tightly against the inner wall of the packaging bag, avoiding air leakage during the vacuuming process.The electric heating plate 15, along with the moving plate 10, remains in contact with the sealing area of ​​the packaging bag opening, initiating the heat-sealing process. During heat sealing, the controller monitors the heat-sealing time in real time via a timer. When the heat-sealing time reaches the preset value of the timer, the controller stops the vacuum pump 31 and closes the second solenoid valve 33. Then, it controls the two sets of first electric telescopic rods 8 to retract and reset, causing the moving plate 10, clamping plate 12, and packaging bag to separate. Simultaneously, it controls the third electric telescopic rod 22 to retract and reset, causing the frame 30, vacuum pump 31, and vacuum tube 32 to be extracted from the packaging bag. Finally, the controller starts the self-locking servo motor 5 to continue working, driving the conveyor belt 3 to transport the heat-sealed packaging bag to the next area. The equipment returns to its initial state, awaiting the next packaging operation.

[0031] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A vacuum packaging device, comprising a frame (1), characterized in that, The frame (1) has multiple sets of conveyor rollers (2) installed inside by bearings, and conveyor belts (3) are sleeved on the side walls of the multiple sets of conveyor rollers (2). A mounting cover (4) and an electrical control box are fixedly installed on one side of the frame (1). The electrical control box has a controller, a synchronization controller, a timer and a battery installed inside. A self-locking servo motor (5) is fixedly installed on the surface of the mounting cover (4). A first gantry (6) and a second gantry (7) are fixedly installed on the upper part of the frame (1). A first electric telescopic rod (8) and a second electric telescopic rod (9) are fixedly inserted through both sides of the frame (1). The telescopic ends of the two sets of first electric telescopic rods (8) are fixedly equipped with moving plates (10), and the adjacent surfaces of the two sets of moving plates (10) are slidably connected by two sets of T-shaped rods (11). One end of the two sets of T-shaped rods (11) on the same side is fixedly equipped with a clamping plate (12). The side walls of the four sets of T-shaped rods (11) are all sleeved with springs (14). The opposing surfaces of the two sets of clamping plates (12) are provided with clearance grooves (13). The adjacent surfaces of the two sets of moving plates (10) are fixedly equipped with electric heating plates (15). The telescopic ends of the two sets of second electric telescopic rods (9) are fixedly equipped with limit plates (17).

2. The vacuum packaging equipment according to claim 1, characterized in that, The second gantry (7) is fixedly connected to both sides by a fourth electric telescopic rod (29). The telescopic ends of the two sets of the fourth electric telescopic rods (29) are fixedly installed with frame plates (23). The inner walls of the two sets of frame plates (23) are fixedly installed with air pumps (24). The output ends of the two sets of air pumps (24) are connected with air guide pipes (25). The side walls of the two sets of air guide pipes (25) are provided with first solenoid valves (28). The opposite ends of the two sets of air guide pipes (25) are fixedly sleeved with air storage plates (26).

3. The vacuum packaging equipment according to claim 2, characterized in that, Multiple unidirectional suction heads (27) are passed through the adjacent surfaces of the two sets of gas storage plates (26).

4. The vacuum packaging equipment according to claim 1, characterized in that, A first infrared transmitter (18) and a second infrared transmitter (19) are fixedly installed on one side of the inside of the rack (1), and a first infrared receiver (20) and a second infrared receiver (21) are fixedly installed on the other side of the inside of the rack (1). The first infrared transmitter (18), the second infrared transmitter (19), the first infrared receiver (20) and the second infrared receiver (21) are electrically connected to the controller via wires.

5. A vacuum packaging device according to claim 1, characterized in that, Two sets of guide rods (16) slide through both sides of the frame (1), and one end of the two sets of guide rods (16) on the same side is fixedly connected to one set of limiting plates (17) on the same side.

6. The vacuum packaging equipment according to claim 1, characterized in that, The controller is electrically connected to the battery, the synchronization controller, the timer, the self-locking servo motor (5), the two sets of the second electric telescopic rods (9) and the two sets of the electric heating plates (15) via wires. The synchronization controller is electrically connected to the two sets of the first electric telescopic rods (8) via wires.

7. The vacuum packaging equipment according to claim 1, characterized in that, The output end of the self-locking servo motor (5) is connected to the last set of conveying rollers (2) via a coupling.

8. A vacuum packaging device according to claim 1, characterized in that, The upper part of the first gantry (6) is fixedly connected to a third electric telescopic rod (22), and a frame (30) is fixedly installed at the telescopic end of the third electric telescopic rod (22). A vacuum pump (31) is fixedly installed on the inner bottom surface of the frame (30). A vacuum tube (32) is snapped into the output end of the vacuum pump (31), and a second solenoid valve (33) is provided on the side wall of the vacuum tube (32). The third electric telescopic rod (22), the vacuum pump (31), and the second solenoid valve (33) are electrically connected to the controller through wires.

9. A vacuum packaging device according to claim 1, characterized in that, The lower part of the frame (1) is welded with four sets of support legs.

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