A packaging apparatus for food products

By using automated cutting and sealing structures, the problems of low cutting accuracy and low efficiency in traditional food packaging equipment are solved, resulting in efficient and aesthetically pleasing food packaging suitable for large-scale production.

CN224375986UActive Publication Date: 2026-06-19JIANGSU SHI FOOD CHAIN AGRICULTURAL PRODUCTS PROCESSING CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU SHI FOOD CHAIN AGRICULTURAL PRODUCTS PROCESSING CO LTD
Filing Date
2025-06-24
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Traditional food packaging equipment has low precision and uneven edges when cutting packaging materials, which affects the appearance and has low production efficiency, making it difficult to meet the needs of large-scale production.

Method used

The machine employs multiple internal structures that work together, including a display screen, operation buttons, placement box, mold, pressing groove, moving rod, push block, and tension spring, to automatically cut the edges of the packaging film. Combined with a telescopic rod, spring, moving frame, rotating rod, and counterweight column structure, it ensures a sealing effect.

Benefits of technology

It improves cutting precision and edge neatness, enhances production efficiency, ensures the aesthetics and sealing effect of food packaging, and meets the needs of large-scale production.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224375986U_ABST
Patent Text Reader

Abstract

This utility model provides a food packaging device, relating to the field of packaging equipment technology. It includes a machine body with a display screen fixedly mounted on its surface. This utility model, through the arrangement of the machine body, display screen, operation buttons, placement box, mold, pressing groove, moving rod, pressing block, pushing block, tension spring, pull rod, piston, and placement groove structure, enables rapid trimming of excess packaging film after packaging by coordinating the movement of multiple structures, including a bidirectional lead screw and a cutting blade. This eliminates the need for manual trimming, effectively improving trimming accuracy and ensuring neat edges, thus avoiding affecting the aesthetics of the food packaging. Furthermore, the elimination of multiple steps significantly improves production efficiency, meeting the needs of large-scale production. Additionally, the pushing block and push rod structure facilitates the removal of packaged food by workers, effectively enhancing the device's convenience.
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Description

Technical Field

[0001] This utility model relates to the field of packaging equipment technology, and in particular to a food packaging equipment. Background Technology

[0002] Early food packaging equipment mainly consisted of semi-automatic packaging machinery, such as simple filling and sealing machines. Filling machines were used to fill containers with liquid or semi-fluid foods, while sealing machines were used to seal the filled containers. The emergence of these devices improved the efficiency of food packaging to some extent and reduced the labor intensity of manual operations.

[0003] In terms of cutting packaging materials, traditional equipment typically uses simple cutters, requiring manual cutting. This method not only has low cutting precision and wastes packaging materials, but also produces uneven edges, affecting the aesthetics of food packaging. Furthermore, it is inefficient and cannot meet the needs of large-scale production, thus requiring improvement. Utility Model Content

[0004] The purpose of this utility model is to solve the technical problems mentioned in the background art.

[0005] This utility model adopts the following technical solution: a food packaging device, including a machine body, a display screen fixedly installed on the surface of the machine body, operation buttons fixedly installed on the surface of the machine body, a placement box placed inside the machine body, a mold placed inside the placement box, a pressing groove formed on the surface of the placement box, a moving rod sleeved inside the pressing groove, a pressing block fixedly installed at one end of the moving rod, a push block fixedly installed at the other end of the moving rod, a tension spring sleeved on the outer surface of the moving rod, a pull rod fixedly installed at the rear end of the push block, a piston fixedly installed at one end of the pull rod, a placement groove formed on the surface of the mold, a top rod sleeved inside the placement groove, and the top rod... A spring is fitted on the outer surface of the rod. A fixing frame is fixedly installed on the surface of the machine body. A bidirectional lead screw is fitted inside the fixing frame. A fixing block is threaded onto the outer surface of the bidirectional lead screw. A rotating column is fitted inside the fixing block. A gear is fixedly installed on the surface of the bidirectional lead screw. A limit rod is fixedly installed on the surface of the machine body. A movable cylinder is fitted on the outer surface of the limit rod. A spring is fitted on the outer surface of the limit rod. A rack is fixedly installed on the surface of the movable cylinder. A fixing block is fitted inside the other end of the rotating column. A connecting plate is fixedly installed at the bottom end of the fixing block. A fixing frame is fixedly installed at the bottom end of the connecting plate. A cutting blade is fixedly installed at the bottom end of the fixing frame.

[0006] Preferably, one end of the second spring is fixedly connected to the surface of the machine body, and the other end of the second spring is fixedly connected to one end surface of the moving cylinder. The surface of the rack meshes with the surface of the gear. Here, the two ends of the second spring are fixedly connected to the surface of the machine body and one end surface of the moving cylinder, respectively, providing elastic support and restoring force for the moving cylinder. When the cutting blade moves up and down under the action of external force, the second spring can buffer and absorb part of the impact force, and at the same time, after the force disappears, it allows the moving cylinder and the cutting blade to return to the initial position, ensuring the stability and repeatability of the cutting operation.

[0007] Preferably, the cutting blade is square-frame shaped, and the number of cutting blades, fixing frames, and molds are two sets, symmetrically distributed inside the placement box and the fixing frame. The push block is trapezoidal in shape, and the bottom end of the top rod is semi-circular. Here, the square-frame cutting blade can perform regular cuts on the food packaging material, ensuring neat cut edges. The two symmetrically distributed sets of cutting blades, fixing frames, and molds can process two portions of food packaging material simultaneously, improving the equipment's working efficiency.

[0008] Preferably, the bottom end of the push rod contacts the surface of the push block, one end of the first spring is connected and fixed to the inner surface of the pressing groove, and the other end of the first spring is connected and fixed to the surface of the push rod. The pressing block is flat and elliptical in shape. Here, the bottom end of the push rod contacts the surface of the push block, so that the force of the push block can be effectively transmitted to the push rod, ensuring the normal operation of the push rod and realizing the processing of food packaging materials.

[0009] Preferably, the tension springs and moving rods are in two sets and symmetrically distributed inside the pressing groove and on the rear end surface of the push block. The bottom end of the placement groove is connected to the top end of the pressing groove, and the piston is sleeved inside the placement box. Here, the two sets of symmetrically distributed tension springs and moving rods ensure that the pressing groove and the rear end of the push block are subjected to uniform force, guaranteeing the smooth operation of the moving rods and the push block, and avoiding jamming or damage due to uneven force.

[0010] Preferably, one end of the tension spring is connected and fixed to the inner wall surface of the pressing groove, and the other end of the tension spring is connected and fixed to the rear end surface of the push block. The rotating column is flat and elliptical in shape, and the top ends of the first and second fixing blocks are rounded. Here, the two ends of the tension spring are respectively connected and fixed to the inner wall surface of the pressing groove and the rear end surface of the push block, ensuring that the tension spring can effectively provide a restoring force for the push block and the moving rod, making the pressing and restoring actions more stable and reliable.

[0011] Preferably, a telescopic rod is fixedly installed on the inner wall surface of the machine body, a spring three is sleeved on the outer surface of the telescopic rod, a movable frame is fixedly installed at the bottom end of the telescopic rod, a rotating rod is sleeved inside the bottom end of the movable frame, and a counterweight column is fixedly installed on the surface of the rotating rod. Here, the telescopic rod and the spring three on the inner wall of the machine body cooperate to allow the telescopic rod to extend and retract when the box or other components are subjected to external force, and the spring three provides elastic cushioning to absorb the impact force and protect the internal structure of the equipment from damage.

[0012] Preferably, the telescopic rods and springs are arranged in multiple sets in an array on the inner wall of the machine body. One end of each spring is fixedly connected to the top surface of the movable frame, and the other end is fixedly connected to the inner wall surface of the machine body. The movable frame, rotating rod, and counterweight column are arranged in two sets symmetrically inside the machine body, and the surface of the counterweight column is in contact with the top surface of the placement box. Here, the multiple sets of arrayed telescopic rods and springs provide effective buffering and support in all directions inside the machine body, improving the equipment's ability to withstand impact forces and ensuring the stability of equipment operation.

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

[0014] 1. In this utility model, by setting up a machine body, display screen, operation buttons, placement box, mold, pressing groove, moving rod, pressing block, pushing block, tension spring, pull rod, piston, and placement groove structure, the equipment, through the coordinated movement of multiple structures such as the bidirectional lead screw and cutting blade, can quickly trim excess packaging film at the edges after packaging, eliminating the need for manual cutting operations. This effectively improves cutting accuracy and ensures neat edges, avoiding affecting the aesthetics of food packaging. Furthermore, by eliminating multiple steps, it effectively improves the production efficiency of the equipment and meets the needs of large-scale production. In addition, the pushing block and top rod structure facilitates the removal of packaged food by workers, effectively improving the convenience of the equipment.

[0015] 2. In this utility model, by setting up a structure consisting of a telescopic rod, three springs, a movable frame, a rotating rod, and a counterweight column, the structure composed of the telescopic rod, three springs, a movable frame, a rotating rod, and a counterweight column on the inner wall of the machine functions after the food packaging is completed and before it is removed. Multiple sets of telescopic rods and three springs provide elastic support. The movable frame can move downwards under the drive of the telescopic rods. The counterweight column connected through the rotating rod contacts the edge of the food packaging inside the box and applies pressure to ensure the sealing effect of the food packaging and prevent air leakage due to non-standard packaging. Attached Figure Description

[0016] Figure 1 This utility model provides a three-dimensional structural diagram of a food packaging equipment;

[0017] Figure 2 This utility model provides a schematic diagram of the front end structure of a food packaging device;

[0018] Figure 3 This utility model provides a schematic diagram of the side end structure of a food packaging device;

[0019] Figure 4 This utility model provides a partial structural schematic diagram of a food packaging equipment;

[0020] Figure 5 This utility model proposes a food packaging device. Figure 4 Enlarged view of point A in the middle;

[0021] Figure 6 This utility model proposes a food packaging device. Figure 2 Enlarged view of section B in the middle.

[0022] Legend:

[0023] 1. Machine body; 2. Display screen; 3. Operation buttons; 4. Placement box; 5. Mold; 6. Pressing groove; 7. Moving rod; 8. Pressing block; 9. Push block; 10. Tension spring; 11. Pull rod; 12. Piston; 13. Placement groove; 14. Top rod; 15. Spring 1; 16. Fixing frame; 17. Two-way lead screw; 18. Fixing block 1; 19. Rotating column; 20. Gear; 21. Limiting rod; 22. Moving cylinder; 23. Spring 2; 24. Rack; 25. Fixing block 2; 26. Connecting plate; 27. Fixing frame; 28. Cutting blade; 29. ​​Telescopic rod; 30. Spring 3; 31. Moving frame; 32. Rotating rod; 33. Counterweight column. Detailed Implementation

[0024] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0026] Example 1

[0027] Please see Figure 1 - Figure 5This utility model provides a technical solution: a food packaging device, including a body 1, a display screen 2 fixedly mounted on the surface of the body 1, operation buttons 3 fixedly mounted on the surface of the body 1, a placement box 4 placed inside the body 1, a mold 5 placed inside the placement box 4, a pressing groove 6 formed on the surface of the placement box 4, a moving rod 7 sleeved inside the pressing groove 6, a pressing block 8 fixedly mounted at one end of the moving rod 7, a push block 9 fixedly mounted at the other end of the moving rod 7, a tension spring 10 sleeved on the outer surface of the moving rod 7, a pull rod 11 fixedly mounted at the rear end of the push block 9, a piston 12 fixedly mounted at one end of the pull rod 11, a placement groove 13 formed on the surface of the mold 5, a push rod 14 sleeved inside the placement groove 13, and a spring sleeved on the outer surface of the push rod 14. A spring 15, a fixing frame 16 is fixedly installed on the surface of the machine body 1, a double-acting lead screw 17 is sleeved inside the fixing frame 16, a fixing block 18 is threaded to the outer surface of the double-acting lead screw 17, a rotating column 19 is sleeved inside the fixing block 18, a gear 20 is fixedly installed on the surface of the double-acting lead screw 17, a limit rod 21 is fixedly installed on the surface of the machine body 1, a moving cylinder 22 is sleeved on the outer surface of the limit rod 21, a spring 23 is sleeved on the outer surface of the limit rod 21, a rack 24 is fixedly installed on the surface of the moving cylinder 22, a fixing block 25 is sleeved inside the other end of the rotating column 19, a connecting plate 26 is fixedly installed at the bottom end of the fixing block 25, a fixing frame 27 is fixedly installed at the bottom end of the connecting plate 26, and a cutting blade 28 is fixedly installed at the bottom end of the fixing frame 27. After the equipment is packaged, first, the hand contacts the surface of the moving cylinder 22, then presses the moving cylinder 22. Pressing the moving cylinder 22 moves the rack 24, which in turn moves the gear 20. Next, the movement of the moving cylinder 22 causes the second spring 23 to contract. Then, the rotation of the gear 20 causes the double-acting lead screw 17 to rotate, which in turn moves the first fixed block 18. Next, the movement of the first fixed block 18 causes the rotating column 19 to rotate, which in turn moves the second fixed block 25. Next, the movement of the second fixed block 25 moves the connecting plate 26, which in turn moves the fixed frame 27. Then, the fixed frame 27 moves, causing the cutting blade 28 to move. The cutting blade 28 then contacts the surface of the packaged food box, trimming any excess cling film from the edges. After trimming, the hand is released from the surface of the moving cylinder 22, and the spring 23 resets the cutting blade 28. The hand then contacts the surface of the pressing block 8 and presses it. The pressing block 8 moves, causing the moving rod 7 to move, which in turn moves the push block 9. The push block 9 then stretches the tension spring 10, which in turn moves the pull rod 11, which in turn moves the piston 12.Then, the push block 9 moves, causing the push rod 14 to move. The push rod 14 then moves, causing the spring 15 to retract. The push rod 14 moves, moving the packaged food. The hand then disengages from the surface of the pressing block 8, and the packaged food can be removed from the mold 5. Finally, the return motion of the tension spring 10 and the spring 15 resets the push rod 14 and the push block 9.

[0028] Please see Figure 1 - Figure 6 One end of spring 23 is fixedly connected to the surface of the body 1, and the other end of spring 23 is fixedly connected to the surface of one end of the moving cylinder 22. The surface of rack 24 meshes with the surface of gear 20. The cutting blade 28 is square-shaped. There are two sets of cutting blades 28, fixed frames 27, and molds 5, which are symmetrically distributed inside the placement box 4 and the fixed frame 16. The push block 9 is trapezoidal in shape. The bottom end of the push rod 14 is semi-circular and contacts the surface of the push block 9. One end of spring 15 is fixedly connected to the inner surface of the pressing groove 6, and the other end of spring 15 is fixedly connected to the surface of the push rod 14. The pressing block 8 is flat and elliptical in shape. There are two sets of tension springs 10 and moving rods 7, which are symmetrically distributed inside the pressing groove 6 and the rear end surface of the push block 9. The bottom end of the placement groove 13 is connected to the top end of the pressing groove 6. The piston 12 is fitted inside the placement box 4. One end of spring 10 is connected and fixed to the inner wall surface of pressing groove 6, and the other end of spring 10 is connected and fixed to the rear end surface of push block 9. Rotating column 19 is flat and elliptical in shape. The top ends of fixing block 18 and fixing block 25 are rounded. There are multiple sets of telescopic rods 29 and springs 30, which are arranged in an array on the inner wall of the machine body 1. One end of spring 30 is connected and fixed to the top surface of moving frame 31, and the other end of spring 30 is connected and fixed to the inner wall surface of machine body 1. There are two sets of moving frame 31, rotating rod 32 and counterweight column 33, which are symmetrically distributed inside the machine body 1. The surface of counterweight column 33 is in contact with the top surface of placement box 4. The two sets of symmetrically distributed moving frame 31, rotating rod 32 and counterweight column 33 make the force inside the equipment uniform, ensure the stability and balance of components such as placement box 4, avoid the equipment from tilting or shaking due to uneven force, and improve the reliability of the equipment and the quality of food packaging.

[0029] Example 2

[0030] Please see Figure 6A telescopic rod 29 is fixedly installed on the inner wall surface of the machine body 1. A spring 30 is sleeved on the outer surface of the telescopic rod 29. A movable frame 31 is fixedly installed at the bottom end of the telescopic rod 29. A rotating rod 32 is sleeved inside the bottom end of the movable frame 31. A counterweight column 33 is fixedly installed on the surface of the rotating rod 32. When the food packaging is completed and not removed from the equipment, the telescopic rod 29 is fixedly installed on the inner wall surface of the machine body 1, the outer surface of the telescopic rod 29 is sleeved with the spring 30, and the bottom end is fixed with the movable frame 31. When it is necessary to press the edge of the food packaging to ensure a sealing effect, the telescopic rod 29 will extend or shorten under the elastic force of the spring 30, driving the movable frame 31 at its bottom end to move up and down. The rotating rod 32 is sleeved inside the bottom end of the movable frame 31, and the counterweight column 33 fixedly installed on the surface of the rotating rod 32 moves together with the movable frame 31. When the movable frame 31 moves to a certain position, the counterweight column 33 will contact the edge of the food packaging inside the box 4. Because the counterweight column 33 has a certain weight, it applies pressure to the edge of the food packaging. If it is subjected to external impact during the pressing process, the spring 30 can act as a buffer to prevent excessive pressure from damaging the food packaging. At the same time, the rotating rod 32 allows the counterweight column 33 to rotate flexibly within a certain range to better adapt to the shape of the food packaging edge, ensuring that pressure is applied evenly to the edge of the food packaging, effectively preventing air leakage due to non-standard packaging, and ensuring the sealing effect of the food packaging.

[0031] Working Principle: After food packaging is completed and before the food is removed from the equipment, a telescopic rod 29 is fixedly installed on the inner wall of the machine body 1. A spring 30 is fitted onto the outer surface of the telescopic rod 29, and a movable frame 31 is fixed at its bottom. When it is necessary to press the edge of the food packaging to ensure a seal, the telescopic rod 29 extends or retracts under the elastic force of the spring 30, causing the movable frame 31 at its bottom to move up and down. A rotating rod 32 is fitted inside the bottom of the movable frame 31, and a counterweight column 33 is fixedly installed on the surface of the rotating rod 32, moving along with the movable frame 31. When the movable frame 31 moves to a certain position, the counterweight column 33 contacts the edge of the food packaging inside the box 4. Because the counterweight column 33 has a certain weight, it applies pressure to the edge of the food packaging. If the packaging is subjected to external impact during the pressing process, the spring 30 can act as a buffer, preventing excessive pressure from damaging the food packaging.Meanwhile, the rotating rod 32 allows the counterweight column 33 to rotate flexibly within a certain range to better adapt to the shape of the food packaging edge, ensuring uniform pressure on the food packaging edge, effectively preventing air leakage due to non-standard packaging, and ensuring the sealing effect of the food packaging. After the equipment finishes packaging, firstly, the hand contacts the surface of the moving cylinder 22, then presses the moving cylinder 22. The moving cylinder 22 moves the rack 24, which in turn moves the gear 20. Then, the moving cylinder 22 moves the spring 23, which contracts. Subsequently, the gear 20 rotates, which in turn rotates the double-acting screw 17. Then, the double-acting screw 17 moves the fixed block 18, which in turn moves the rotating column 19. Then, the rotating column 19 moves the fixed block 25, which in turn moves the connecting plate 26. Then, the connecting plate 26 moves the fixed frame 27, which in turn moves the cutting blade 28. The cutting blade 28 moves to contact the surface of the packaged food box, then trims the excess cling film at the edges of the packaging. After trimming, the hand is removed from the surface of the moving cylinder 22, and the cutting blade 28 returns to its original position via the resetting motion of the spring 23. The hand then contacts the surface of the pressing block 8 and presses it. The movement of the pressing block 8 moves the moving rod 7, which in turn moves the push block 9. Finally, the movement of the push block 9 stretches the tension spring 10. The push block 9 moves, then the pull rod 11 moves, then the pull rod 11 moves, then the piston 12 moves, then the push block 9 moves, then the top rod 14 moves, then the top rod 14 moves, then the spring 15 contracts, then the top rod 14 moves, then the packaged food moves, then the hand is separated from the surface of the pressing block 8, then the packaged food can be taken out of the mold 5, then the return movement of the tension spring 10 and the spring 15 drives the top rod 14 and the push block 9 to return to their original positions.

[0032] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A food packaging device, comprising a body (1), characterized in that: The surface of the machine body (1) is fixedly equipped with a display screen (2), the surface of the machine body (1) is fixedly equipped with an operation button (3), the inside of the machine body (1) is a placement box (4), the inside of the placement box (4) is a mold (5), the surface of the placement box (4) is provided with a pressing groove (6), the inside of the pressing groove (6) is fitted with a moving rod (7), one end of the moving rod (7) is fixedly equipped with a pressing block (8), the other end of the moving rod (7) is fixedly equipped with a push block (9), the outer surface of the moving rod (7) is fitted with a tension spring (10), the rear end of the push block (9) is fixedly equipped with a pull rod (11), one end of the pull rod (11) is fixedly equipped with a piston (12), the surface of the mold (5) is provided with a placement groove (13), the inside of the placement groove (13) is fitted with a top rod (14), the outer surface of the top rod (14) is fitted with a spring (15), the surface of the machine body (1) is provided with a placement groove (13), the inside of the placement groove (13) is fitted with a top rod (14), the outer surface of the top rod (14) is fitted with a spring (15), the surface of the machine body (1) is provided with a placement box (4), the mold (5) is fixedly equipped with a display screen (2), the surface of the mold (5) is fixedly equipped ... surface of the mold (5) is fixedly equipped with a placement groove (13), the surface of the mold (5) is fixedly equipped with a placement A fixed frame (16) is fixedly installed on the surface. A two-way lead screw (17) is sleeved inside the fixed frame (16). A fixed block (18) is threadedly connected to the outer surface of the two-way lead screw (17). A rotating column (19) is sleeved inside the fixed block (18). A gear (20) is fixedly installed on the surface of the two-way lead screw (17). A limit rod (21) is fixedly installed on the surface of the machine body (1). A moving cylinder (22) is sleeved on the outer surface of the limit rod (21). A spring (23) is sleeved on the outer surface of the limit rod (21). A rack (24) is fixedly installed on the surface of the moving cylinder (22). A fixed block (25) is sleeved inside the other end of the rotating column (19). A connecting plate (26) is fixedly installed at the bottom end of the fixed block (25). A fixed frame (27) is fixedly installed at the bottom end of the connecting plate (26). A cutting blade (28) is fixedly installed at the bottom end of the fixed frame (27).

2. The food packaging equipment according to claim 1, characterized in that: One end of the second spring (23) is connected and fixed to the surface of the body (1), and the other end of the second spring (23) is connected and fixed to one end of the moving cylinder (22). The surface of the rack (24) meshes with the surface of the gear (20).

3. The food packaging equipment according to claim 1, characterized in that: The cutting blade (28) is square frame-shaped. The number of the cutting blade (28), the fixing frame (27) and the mold (5) are two sets and are symmetrically distributed inside the placement box (4) and the fixing frame (16). The push block (9) is trapezoidal in shape, and the bottom of the top rod (14) is semi-circular.

4. The food packaging equipment according to claim 1, characterized in that: The bottom end of the top rod (14) is in contact with the surface of the push block (9), one end of the spring (15) is connected and fixed to the inner surface of the pressing groove (6), the other end of the spring (15) is connected and fixed to the surface of the top rod (14), and the pressing block (8) is flat and elliptical in shape.

5. The food packaging equipment according to claim 1, characterized in that: The number of tension springs (10) and moving rods (7) is two sets and they are symmetrically distributed inside the pressing groove (6) and on the rear end surface of the push block (9). The bottom end of the placement groove (13) is connected to the top end of the pressing groove (6). The piston (12) is sleeved inside the placement box (4).

6. The food packaging equipment according to claim 1, characterized in that: One end of the tension spring (10) is connected and fixed to the inner wall surface of the pressing groove (6), and the other end of the tension spring (10) is connected and fixed to the rear end surface of the push block (9). The rotating column (19) is flat and elliptical in shape, and the top ends of the first fixing block (18) and the second fixing block (25) are rounded.

7. The food packaging equipment according to claim 1, characterized in that: A telescopic rod (29) is fixedly installed on the inner wall surface of the body (1). A spring (30) is sleeved on the outer surface of the telescopic rod (29). A movable frame (31) is fixedly installed at the bottom end of the telescopic rod (29). A rotating rod (32) is sleeved inside the bottom end of the movable frame (31). A counterweight column (33) is fixedly installed on the surface of the rotating rod (32).

8. A food packaging device according to claim 7, characterized in that: The telescopic rod (29) and spring three (30) are in multiple sets and are arranged in an array on the inner wall of the body (1). One end of spring three (30) is connected and fixed to the top surface of the moving frame (31), and the other end of spring three (30) is connected and fixed to the inner wall surface of the body (1). The moving frame (31), rotating rod (32) and counterweight column (33) are in two sets and are symmetrically distributed inside the body (1). The surface of the counterweight column (33) is in contact with the top surface of the placement box (4).