Meat food vacuum packaging machine

Abstract

The utility model discloses a meat food vacuum packaging machine which comprises a machine tool, a movable device is arranged on the machine tool, a vacuum machine is arranged on the machine tool, the input end of the vacuum machine is connected with a protection device, and the protection device comprises a connecting pipe, a threaded sleeve, a fixed pipe, a first sealing plate, a connecting rod, a second sealing plate, a circulation groove, a fixed plate, a connecting frame, a movable frame, a spring and a flow stopping block. The connecting frame is arranged in the fixed pipe, the spring is connected to one side of the movable frame, the flow stopping block is arranged on one side of the first sealing plate, an adjusting mechanism is arranged in the fixed pipe and comprises an adjusting rod, an adjusting sleeve, an adjusting groove, an adjusting block, a ridge block, a ridge groove, a threaded sleeve and a threaded rod, and the adjusting block is connected to one side of the second sealing plate. According to the meat packaging machine, the requirements of the meat processing industry can be better met, the labor intensity of workers is reduced, and the packaging quality and efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of meat food vacuum packaging machines, and more particularly to a meat food vacuum packaging machine. Background Art

[0002] In current meat food packaging technology, the shelf life of meat food is a challenge that needs to be solved urgently. Due to its high moisture content and rich nutrients, meat food easily becomes an ideal environment for the growth of microorganisms. In addition, it undergoes oxidation reaction with oxygen in the air, which makes its shelf life relatively short. In order to extend the shelf life of meat food, vacuum packaging technology came into being. However, in the existing technology, this packaging machine still has some shortcomings.

[0003] First of all, existing meat food vacuum packaging machines often require operators to manually open and close the vacuum chamber, which to a certain extent increases the intensity of manual labor and reduces production efficiency. On a continuously operating production line, this repetitive labor not only consumes manpower, but may also lead to unstable packaging quality due to operator fatigue, which has an adverse impact on production.

[0004] Secondly, although vacuum packaging technology can reduce the contact between meat and oxygen by extracting the air in the packaging bag, thereby extending the shelf life, the structure of the suction device in the existing technology is often relatively simple and lacks precise control of the suction force. This insufficient control may lead to two problems: first, when the suction force is relatively small, it is impossible to achieve sufficient vacuum degree, so that a small amount of air remains inside the package, which will affect the shelf life of the meat food; second, when the suction force is large, it may cause excessive negative pressure on the meat food in the vacuum bag, causing the food to be extracted or deformed, which not only affects the appearance of the food, but may also damage the structure of the food and reduce its quality.

[0005] In addition, in order to solve the problem of controlling the suction force, some existing devices have attempted to use mechanisms to limit the suction force of the suction device. However, the design of these mechanisms is usually relatively simple, lacking flexibility and adaptability, and cannot be fine-tuned according to different packaging requirements and food characteristics. This limitation makes it difficult for the device to achieve the optimal packaging effect when facing different types and specifications of meat products, thereby affecting the applicability of the packaging machine and the shelf life of the meat products. Utility Model Content

[0006] (1) Technical problems solved

[0007] In view of the problems existing in the prior art, the utility model provides a meat food vacuum packaging machine to solve the technical problems mentioned in the background technology.

[0008] (2) Technical solution

[0009] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a meat food vacuum packaging machine, comprising a machine tool, characterized in that: a movable device is provided on the machine tool, a vacuum machine is provided on the machine tool, a protective device is connected to the input end of the vacuum machine, the protective device comprises a connecting pipe, a threaded sleeve, a fixed pipe, a first sealing plate, a connecting rod, a second sealing plate, a circulation groove, a fixed plate, a connecting frame, a movable frame, a spring and a flow block, the fixed pipe is connected to one end of the connecting pipe, the first sealing plate is connected to the second sealing plate through a connecting rod, the circulation groove is opened on the threaded sleeve, the fixed plate is fixedly arranged in the fixed pipe, the The connecting frame is movably arranged in the fixed tube, the spring is connected to one side of the movable frame, the baffle is arranged on one side of the first sealing plate, and an adjustment mechanism is arranged in the fixed tube, the adjustment mechanism includes an adjusting rod, an adjusting sleeve, an adjusting groove, an adjusting block, an edge block, an edge groove, a screw sleeve and a screw, the adjusting rod is connected to the inner side of the adjusting sleeve, the adjusting sleeve is movably arranged on one side of the fixed tube, the adjusting groove is opened at one end of the adjusting rod, the adjusting block is connected to one side of the second sealing plate, the screw sleeve is arranged on the inner side of the movable frame, the screw is connected to one side of the edge block, the edge block is arranged on one side of the first sealing plate, and the edge groove is opened on the inner side of the threaded sleeve.

[0010] The present invention is further configured such that bellows are symmetrically provided on both sides of the adjustment sleeve, and the two sides of the adjustment sleeve are movably connected to the corresponding bellows respectively.

[0011] The utility model is further configured such that the outer side of the threaded sleeve is movably connected to the inner wall of the fixed pipe via a thread.

[0012] The utility model is further configured such that a slide groove is provided in the fixed tube, a slider is provided on the outer side of the movable frame, and the slider is slidably arranged in the slide groove. The arrangement of the slide groove and the slider realizes the limiting and guiding functions.

[0013] The utility model is further configured such that a sealing block is provided on one side of each of the first sealing plate and the second sealing plate, and sealing grooves are symmetrically provided on both sides of the fixing plate.

[0014] The utility model is further configured such that the lengths of the plurality of flow blocking blocks are different.

[0015] The utility model is further configured as follows: the movable device includes a bin cover, a vacuum bin, a rotating shaft, a rotating frame and a connecting shaft; the vacuum bin is installed on a machine tool; the bin cover is connected to one side of the rotating frame; the bin is installed on the vacuum bin; the rotating frame is movably connected to the vacuum bin through the rotating shaft; the setting of the movable device can realize the flexible opening and closing of the bin cover.

[0016] The utility model is further configured such that a cylinder is provided on the machine tool, a piston rod is provided at the output end of the cylinder, and the other end of the piston rod is movably connected to the connecting shaft. The configuration of the cylinder and the piston rod provides a stable power output source.

[0017] (3) Beneficial effects

[0018] Compared with the prior art, the utility model provides a meat food vacuum packaging machine with the following beneficial effects:

[0019] 1. The movable device realizes the flexible opening and closing of the vacuum chamber through the coordinated action of the chamber cover, vacuum chamber, rotating shaft, rotating frame and connecting shaft. The connection between the chamber cover and the rotating frame and the movable connection between the rotating frame and the vacuum chamber enable the chamber cover to rotate around the rotating shaft, thereby conveniently opening and closing the vacuum chamber. The setting of the cylinder and the movable connection between the piston rod and the connecting shaft enable the operator to easily drive the connecting shaft and rotating frame by controlling the opening and closing of the cylinder, thereby realizing automatic opening and closing of the chamber cover. This design greatly simplifies the operation process and improves the automation level and operation convenience of the vacuum packaging machine.

[0020] 2. The protective device realizes effective protection of meat products during vacuum packaging through the precise coordination of the connecting tube, threaded sleeve, fixed tube, sealing plate, connecting rod, circulation groove, fixed plate, connecting frame, movable frame, spring and baffle. The connection between the sealing plate and the connecting rod, as well as the positional relationship between the circulation groove and the baffle ensure that during the vacuum packaging process, when the vacuum machine's exhaust pressure is too high, the sealing plate can contact the fixed plate in time to prevent the vacuum machine from extracting the meat products in the packaging bag. At the same time, the setting of the movable frame and the spring enables the spring to push the movable frame and the screw to reset after the vacuum is completed, thereby realizing the reset of the sealing plate and the fixed plate and ensuring the sealing of the fixed tube. This design not only improves the safety of the vacuum packaging process, but also helps to maintain the integrity and quality of the meat products.

[0021] 3. The adjustment mechanism realizes precise control of the gas flow rate during the vacuum packaging process through the precise coordination of the adjusting rod, adjusting sleeve, adjusting groove, adjusting block, edge block, edge groove, screw sleeve and screw. The movable connection between the adjusting sleeve and the bellows, as well as the interaction between the adjusting rod and the adjusting groove, realize precise control of the sealing plate, thereby affecting the position relationship of the threaded sleeve and changing the distance between the flow groove and the flow block, thereby realizing precise control of the gas flow rate and the opening mechanism of the protective device. This design not only improves the flexibility of vacuum packaging, but also helps to optimize the vacuum packaging process and improve packaging quality and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1This is a schematic diagram of the overall structure of a meat food vacuum packaging machine in the present utility model;

[0023] Figure 2 for Figure 1 Schematic diagram of the local enlarged structure at A in the middle;

[0024] Figure 3 It is a structural diagram of the movable device part of the utility model;

[0025] Figure 4 It is a schematic cross-sectional structure diagram of the protective device and the adjustment mechanism in the present utility model;

[0026] Figure 5 for Figure 4 Schematic diagram of the local enlarged structure at B in the middle;

[0027] Figure 6 It is a schematic diagram of the cross-sectional structure of the fixed pipe part in the utility model.

[0028] In the figure: 1. Machine tool; 2. Vacuum machine; 3. Connecting pipe; 4. Threaded sleeve; 5. Fixed pipe; 6. First sealing plate; 7. Connecting rod; 8. Second sealing plate; 9. Circulation groove; 10. Fixed plate; 11. Connecting frame; 12. Movable frame; 13. Spring; 14. Flow block; 15. Adjusting rod; 16. Adjusting sleeve; 17. Adjusting groove; 18. Adjusting block; 19. Edge block; 20. Edge groove; 21. Threaded sleeve; 22. Screw; 23. Bellows; 24. Slide; 25. Slider; 26. Sealing block; 27. Sealing groove; 28. Chamber cover; 29. Vacuum chamber; 30. Rotating shaft; 31. Rotating frame; 32. Connecting shaft; 33. Cylinder; 34. Piston rod. DETAILED DESCRIPTION

[0029] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0030] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0031] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually relative to the directions shown in the drawings, or relative to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually relative to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned direction words are not used to limit the present invention.

[0032] See also Figure 1-6, a meat food vacuum packaging machine, including a machine tool 1, characterized in that: a movable device is provided on the machine tool 1, a vacuum machine 2 is provided on the machine tool 1, the input end of the vacuum machine 2 is connected to a protective device, the protective device includes a connecting pipe 3, a threaded sleeve 4, a fixed pipe 5, a first sealing plate 6, a connecting rod 7, a second sealing plate 8, a circulation groove 9, a fixed plate 10, a connecting frame 11, a movable frame 12, a spring 13 and a flow block 14, the fixed pipe 5 is connected to one end of the connecting pipe 3, the first sealing plate 6 is connected to the second sealing plate 8 through the connecting rod 7, the circulation groove 9 is opened on the threaded sleeve 4, the fixed plate 10 is fixedly arranged in the fixed pipe 5, the connecting frame 11 is movably arranged in the fixed pipe 5, and the spring 13 is connected to one side of the movable frame 12, the baffle 14 is provided on one side of the first sealing plate 6, and an adjustment mechanism is provided in the fixed tube 5, the adjustment mechanism including an adjusting rod 15, an adjusting sleeve 16, an adjusting groove 17, an adjusting block 18, an edge block 19, an edge groove 20, a screw sleeve 21 and a screw 22, the adjusting rod 15 is connected to the inner side of the adjusting sleeve 16, the adjusting sleeve 16 is movably provided on one side of the fixed tube 5, the adjusting groove 17 is provided at one end of the adjusting rod 15, the adjusting block 18 is connected to one side of the second sealing plate 8, the screw sleeve 21 is provided on the inner side of the movable frame 12, the screw 22 is connected to one side of the edge block 19, the edge block 19 is provided on one side of the first sealing plate 6, and the edge groove 20 is provided on the inner side of the threaded sleeve 4.

[0033] The bellows 23 are symmetrically provided on both sides of the adjustment sleeve 16 , and the two sides of the adjustment sleeve 16 are movably connected to the corresponding bellows 23 .

[0034] The outer side of the threaded sleeve 4 is movably connected to the inner wall of the fixed tube 5 through threads.

[0035] A sliding groove 24 is defined in the fixed tube 5 , and a slider 25 is provided on the outer side of the movable frame 12 . The slider 25 is slidably disposed in the sliding groove 24 .

[0036] A sealing block 26 is provided on one side of the first sealing plate 6 and the second sealing plate 8 , and sealing grooves 27 are symmetrically provided on both sides of the fixing plate 10 .

[0037] The lengths of the plurality of flow blocking blocks 14 are different.

[0038] In this embodiment, when the device needs to be used, the use mechanism of the protective device must be adjusted first. First, the adjusting sleeve 16 can be pushed in the corresponding direction. The adjusting sleeve 16 compresses the bellows 23 set on one side and stretches the bellows 23 connected on the other side. Then the adjusting sleeve 16 pushes the second sealing plate 8 to move through the adjusting rod 15, and then the second sealing plate 8 drives the first sealing plate 6 to move through the connecting rod 7. Then the first sealing plate 6 will push the edge block 19 into the edge groove 20, and then the adjusting sleeve 16 is rotated. The adjusting sleeve 16 drives the adjusting block 18 to rotate through the adjusting rod 15 and the adjusting slot 17, and then the adjusting block 18 drives the second sealing plate 8 to rotate, and then the second sealing plate 8 drives the first sealing plate 6 to rotate through the connecting rod 7, and then the first sealing plate 6 drives The movable edge block 19 rotates, and then the edge block 19 drives the threaded sleeve 4 to rotate through the edge groove 20. Since the outer side of the threaded sleeve 4 and the inner wall of the fixed tube 5 are movably connected through threads, the threaded sleeve 4 will slide along the fixed tube 5, and then the distance between the threaded sleeve 4 and each flow-blocking block 14 will change, so that the distance between the flow groove 9 and each flow-blocking block 14 will change, thereby changing the flow rate of gas passing through each time it is opened. While adjusting the threaded sleeve 4, the edge block 19 will drive the screw 22 to rotate. Since the screw sleeve 21 is movably sleeved on the outside of the screw 22 through threads, the slider 25 and the slide groove 24 limit the movable frame 12. Then the screw sleeve 21 will drive the movable frame 12 to slide along the screw 22, and the movable frame 12 will drive the slider 25 slides along the slide groove 24, and then the distance between the movable frame 12 and the connecting frame 11 changes, so that the gap of the spring 13 changes, thereby changing the opening mechanism of the protective device. After the adjustment is appropriate, stop rotating the adjusting sleeve 16, and then pull the adjusting sleeve 16 back to its original position. You can also directly rotate the adjusting sleeve 16 to adjust the opening mechanism of the protective device alone. When the device needs to be used, place the packaging bag in the vacuum chamber 29, and seal the vacuum chamber 29, then turn on the air compressor, and the air compressor will pump air. When the pressure on one side of the first sealing plate 6 is too high, the first sealing plate 6 will be pulled open, and at the same time, the first sealing plate 6 will drive the sealing block 26 to disengage from the sealing groove 27, and then the first sealing plate 6 will drive the flow blocking block 14 to move , so that the gap between the baffle 14 and the flow groove 9 changes, and at the same time the screw 22 drives the movable frame 12 to squeeze the spring 13, and then the gas in the vacuum chamber 29 and the packaging bag enters the fixed tube 5 through the gap between the first sealing plate 6, the fixed plate 10 and the second sealing plate 8. When the vacuum pressure of the vacuum machine 2 is too high, the second sealing plate 8 will contact the fixed plate 10, and at the same time the sealing block 26 provided on one side of the second sealing plate 8 will enter the sealing groove 27 opened on the corresponding side of the fixed plate 10, thereby effectively preventing the vacuum machine 2 from extracting the meat food in the packaging bag. After the vacuuming is completed, the vacuum machine 2 is turned off, and the spring 13 pushes the movable frame 12 and the screw 22 to reset, so that the screw 22 drives the first sealing plate 6 and the second sealing plate 8 to reset.Then the first sealing plate 6 will drive the sealing block 26 to engage in the sealing groove 27 to achieve sealing of the fixed tube 5.

[0039] See also Figure 1-3 As an implementation method of the movable device: the movable device includes a chamber cover 28, a vacuum chamber 29, a rotating shaft 30, a rotating frame 31 and a connecting shaft 32. The vacuum chamber 29 is installed on the machine tool 1. The chamber cover 28 is connected to one side of the rotating frame 31 and is installed on the vacuum chamber 29. The rotating frame 31 is movably connected to the vacuum chamber 29 through the rotating shaft 30.

[0040] The machine tool 1 is provided with a cylinder 33 , an output end of the cylinder 33 is provided with a piston rod 34 , and the other end of the piston rod 34 is movably connected to the connecting shaft 32 .

[0041] More specifically, when it is necessary to open the bin cover 28, the corresponding cylinder 33 is opened, and the cylinder 33 drives the connecting shaft 32 to move downward through the piston rod 34 connected to the output end. Since the piston rod 34 and the connecting shaft 32 are movably connected, and the rotating frame 31 is movably connected to the vacuum bin 29 through the rotating shaft 30, when the piston rod 34 drives the connecting shaft 32 to move, the connecting shaft 32 will drive the rotating frame 31 to rotate with the rotating shaft 30 as the center, and then the rotating frame 31 will drive the bin cover 28 to open.

[0042] In summary, when the entire device is in use or running: when the device needs to be used, the use mechanism of the protective device must be adjusted first. First, the adjusting sleeve 16 can be pushed in the corresponding direction. The adjusting sleeve 16 compresses the bellows 23 set on one side and stretches the bellows 23 connected on the other side. Then the adjusting sleeve 16 pushes the second sealing plate 8 to move through the adjusting rod 15, and then the second sealing plate 8 drives the first sealing plate 6 to move through the connecting rod 7, and then the first sealing plate 6 will push the edge block 19 into the edge groove 20, and then rotate the adjusting sleeve 16. The adjusting sleeve 16 drives the adjusting block 18 to rotate through the adjusting rod 15 and the adjusting groove 17, and then the adjusting block 18 drives the second sealing plate 8 to rotate, and then the second sealing plate 8 drives the first sealing plate 6 to rotate through the connecting rod 7, and then The first sealing plate 6 drives the ridge block 19 to rotate, and then the ridge block 19 drives the threaded sleeve 4 to rotate through the ridge groove 20. Since the outer side of the threaded sleeve 4 and the inner wall of the fixed tube 5 are movably connected through threads, the threaded sleeve 4 will slide along the fixed tube 5, and then the distance between the threaded sleeve 4 and each flow-blocking block 14 will change, so that the distance between the flow groove 9 and each flow-blocking block 14 will change, thereby changing the flow rate of gas passing through each time it is opened. While adjusting the threaded sleeve 4, the ridge block 19 will drive the screw 22 to rotate. Since the screw sleeve 21 is movably sleeved on the outer side of the screw 22 through threads, and the slider 25 and the slide groove 24 limit the movable frame 12, the screw sleeve 21 will drive the movable frame 12 to slide along the screw 22, and the movable frame 12 It will drive the slider 25 to slide along the slide groove 24, and then the distance between the movable frame 12 and the connecting frame 11 will change, so that the gap between the spring 13 will change, thereby changing the opening mechanism of the protective device. After the adjustment is appropriate, stop rotating the adjusting sleeve 16, and then pull the adjusting sleeve 16 back to its original position. You can also directly rotate the adjusting sleeve 16 to adjust the opening mechanism of the protective device alone. When the device needs to be used, place the packaging bag in the vacuum chamber 29, and seal the vacuum chamber 29, then turn on the air compressor, and the air compressor will pump air. When the pressure on one side of the first sealing plate 6 is too large, the first sealing plate 6 will be pulled open, and at the same time, the first sealing plate 6 will drive the sealing block 26 to disengage from the sealing groove 27, and then the first sealing plate 6 will drive the flow blocking block 14 The movement changes the gap between the flow blocking block 14 and the flow slot 9. At the same time, the screw 22 drives the movable frame 12 to squeeze the spring 13. Then the gas in the vacuum chamber 29 and the packaging bag enters the fixed tube 5 through the gap between the first sealing plate 6, the fixed plate 10 and the second sealing plate 8. When the vacuuming pressure of the vacuum machine 2 is too large, the second sealing plate 8 will contact the fixed plate 10. At the same time, the sealing block 26 provided on one side of the second sealing plate 8 will enter the sealing groove 27 opened on the corresponding side of the fixed plate 10, thereby effectively preventing the vacuum machine 2 from extracting the meat food in the packaging bag. After the vacuuming is completed, the vacuum machine 2 is closed, and the spring 13 pushes the movable frame 12 and the screw 22 to return to their original position, so that the screw 22 drives the first sealing plate 6 and the second sealing plate 8 to return to their original position.Then the first sealing plate 6 will drive the sealing block 26 to engage in the sealing groove 27 to achieve sealing of the fixed tube 5.

[0043] When it is necessary to open the bin cover 28, the corresponding cylinder 33 is opened, and the cylinder 33 drives the connecting shaft 32 to move downward through the piston rod 34 connected to the output end. Since the piston rod 34 and the connecting shaft 32 are movably connected, and the rotating frame 31 is movably connected to the vacuum bin 29 through the rotating shaft 30, when the piston rod 34 drives the connecting shaft 32 to move, the connecting shaft 32 will drive the rotating frame 31 to rotate with the rotating shaft 30 as the center, and then the rotating frame 31 will drive the bin cover 28 to open.

[0044] In all the schemes mentioned above, the connection between the two components can be selected according to actual conditions by welding, bolt and nut connection, bolt or screw connection or other well-known connection methods, which will not be listed here one by one. In the above, all fixed connections are preferably welded. Although the embodiments of the present invention have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A meat food vacuum packaging machine, comprising a machine tool (1), characterized in that: A movable device is provided on a machine tool (1), and a vacuum machine (2) is provided on the machine tool (1). The input end of the vacuum machine (2) is connected to a protective device, wherein the protective device comprises a connecting pipe (3), a threaded sleeve (4), a fixed pipe (5), a first sealing plate (6), a connecting rod (7), a second sealing plate (8), a circulation groove (9), a fixed plate (10), a connecting frame (11), a movable frame (12), a spring (13) and a flow block (14). The first sealing plate (6) is connected to the second sealing plate (8) through the connecting rod (7), the circulation groove (9) is provided on the threaded sleeve (4), the connecting frame (11) is provided in the fixed pipe (5), and the spring (13) is connected to the movable frame (12). On one side, a baffle (14) is arranged on one side of a first sealing plate (6); an adjusting mechanism is arranged in the fixed tube (5); the adjusting mechanism comprises an adjusting rod (15), an adjusting sleeve (16), an adjusting groove (17), an adjusting block (18), an edge block (19), an edge groove (20), a screw sleeve (21) and a screw rod (22); the adjusting rod (15) is connected to the inner side of the adjusting sleeve (16); the adjusting groove (17) is opened at one end of the adjusting rod (15); the adjusting block (18) is connected to one side of the second sealing plate (8); the screw sleeve (21) is sleeved on the outer side of the screw rod (22); the edge block (19) is arranged on one side of the first sealing plate (6); and the edge groove (20) is opened on the inner side of the threaded sleeve (4).

2. A meat food vacuum packaging machine according to claim 1, characterized in that: The adjusting sleeve (16) is symmetrically provided with bellows (23) on both sides, and the adjusting sleeve (16) is movably connected to the corresponding bellows (23) on both sides.

3. A meat food vacuum packaging machine according to claim 2, characterized in that: The outer side of the threaded sleeve (4) is movably connected to the inner wall of the fixed tube (5) via a thread.

4. A meat food vacuum packaging machine according to claim 3, characterized in that: A sliding groove (24) is provided in the fixed tube (5), and a sliding block (25) is provided on the outside of the movable frame (12). The sliding block (25) is slidably arranged in the sliding groove (24).

5. The meat food vacuum packaging machine according to claim 4, characterized in that: A sealing block (26) is provided on one side of each of the first sealing plate (6) and the second sealing plate (8), and sealing grooves (27) are symmetrically provided on both sides of the fixing plate (10).

6. The meat food vacuum packaging machine according to claim 5, characterized in that: The lengths of the plurality of flow blocking blocks (14) are different.

7. A meat food vacuum packaging machine according to any one of claims 1 to 5, characterized in that: The movable device comprises a chamber cover (28), a vacuum chamber (29), a rotating shaft (30), a rotating frame (31) and a connecting shaft (32); the vacuum chamber (29) is mounted on the machine tool (1); the chamber cover (28) is connected to one side of the rotating frame (31), which is mounted on the vacuum chamber (29); and the rotating frame (31) is movably connected to the vacuum chamber (29) via the rotating shaft (30).

8. The meat food vacuum packaging machine according to claim 7, characterized in that: The machine tool (1) is provided with a cylinder (33), an output end of the cylinder (33) is provided with a piston rod (34), and the other end of the piston rod (34) is movably connected to a connecting shaft (32).

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