Vacuum packaging machine for frozen meat products

Abstract

The invention discloses a vacuum packaging machine for frozen meat products, which comprises a transmission mechanism and a packaging mechanism, and a gap between the transmission mechanism and the packaging mechanism forms a guide groove; the packaging mechanism comprises a first sealing mechanism, a second sealing mechanism, a plurality of in-bag air exhaust mechanisms and an air pumping mechanism, the first sealing mechanism and the second sealing mechanism are located on the upper side and the lower side of the sealing groove correspondingly, and a first pushing mechanism for driving the first sealing mechanism to ascend and descend is arranged above the first sealing mechanism; the in-bag air exhaust mechanism is arranged on the mounting frame, and the air pumping mechanism is communicated with the in-bag air exhaust mechanism; and a controller is arranged in the packaging mechanism. On one hand, manual intervention is reduced, the manual labor intensity is reduced, and meanwhile the packaging efficiency is improved; on the other hand, the sealing performance can be guaranteed, the problem of air leakage is prevented, and storage of frozen meat products is facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of meat product packaging, and particularly to a vacuum packaging machine for frozen meat products. Background Art

[0002] The frozen meat vacuum packaging machine is a packaging device specifically designed for frozen meat products. By means of vacuum pumping and sealing technology, the air inside the packaging bag is discharged, effectively inhibiting the growth of bacteria and significantly extending the shelf life of the products. Its main working process is in sequence of vacuum pumping, heat sealing and cooling and shaping: first, the air inside the packaging bag containing frozen meat is pumped out, then the bag mouth is hot-pressed and sealed, and finally the sealing part is cooled down to prompt the rapid shaping of the sealed part, thus completing the vacuum packaging operation.

[0003] In the prior art, the Chinese patent publication number: CN222062388U, discloses a double-chamber vacuum packaging machine, and the paragraphs [0026-0028] in the specification disclose that: when performing small packaging, the staff needs to place the partition box in the vacuum chamber, make the limit card engage and fix with the limit slot, then put the small packaging into multiple groups of packaging grooves, and use the edge-sealing buckle to press the position to be edge-sealed; when performing large packaging, directly put the large packaging into the vacuum chamber, place the sealing position on the frame body, and then rotate the pressing rod along the outside of the frame body through the connecting rod and the movable shaft to press the sealing position of the large packaging to complete the fixation. In addition, the staff also needs to rotate the vacuum cover to the upper part of one of the two vacuum chambers through the rotating arm and the rotating shaft for sealing operation.

[0004] Combined with the problems existing in the above prior art, the existing vacuum packaging equipment has many deficiencies in practical applications. On the one hand, there are many manual operation links. Not only does the staff need to accurately set the bag mouth of the packaging bag on the sealing structure manually and fix it manually, but also the switching of the sealing chamber cover of the double-chamber vacuum packaging equipment depends on manual operation. Although the double-chamber packaging machine is more efficient than the single-chamber equipment, the frequent opening and switching operations of the chamber cover still require a large amount of manpower. During the vacuum packaging process of frozen meat, the staff frequently contacts the frozen products, and at the same time manually positions the bag mouth of the packaging bag and switches the chamber cover, which is extremely easy to cause harm to their hands; and the existing double-chamber vacuum packaging machine has limited working efficiency and is difficult to meet the continuous vacuum packaging requirements of a large number of frozen meat products, and cannot adapt to the large-scale production scenario.

[0005] On the other hand, the existing vacuum packaging machine adopts a sealing method of heating and melting the packaging bag and extruding and fusing the thermoplastic materials at the bag mouth, and its sealing width is usually determined by the width of the heat fusion strip. When filling frozen meat products into the bag, impurities such as ice slag, grease, and bone slag on the surface are extremely easy to remain on the inner wall of the bag mouth of the packaging bag. If these impurities exist at the sealing position, it will seriously affect the sealing quality, resulting in sealing failure or air leakage problems during subsequent storage, making there obvious defects in the sealing link of the existing vacuum packaging machine. Summary of the Invention

[0006] The purpose of the present invention is to provide a vacuum packaging machine for frozen meat products to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above object, the present invention provides the following technical solution: A vacuum packaging machine for frozen meat products, including a transmission mechanism and a packaging mechanism, the gap between the transmission mechanism and the packaging mechanism forms a guiding groove;

[0008] The packaging mechanism includes a first sealing mechanism, a second sealing mechanism, a plurality of in-bag air extraction mechanisms and a gas pumping mechanism. The first sealing mechanism and the second sealing mechanism are respectively located on the upper and lower sides of the sealing groove. Above the first sealing mechanism, there is a propulsion mechanism one for driving its lifting;

[0009] Below the interior of the packaging mechanism, there is an installation frame. The in-bag air extraction mechanisms are all arranged on the installation frame, and the gas pumping mechanism is communicated with the in-bag air extraction mechanisms;

[0010] Inside the packaging mechanism, there is a controller, and the controller is electrically connected to the transmission mechanism, the first sealing mechanism, the second sealing mechanism, the in-bag air extraction mechanisms, and the gas pumping mechanism respectively.

[0011] Preferably, a guiding groove is provided on one side of the sealing groove, and the opening direction of the guiding groove faces the input end of the transmission mechanism.

[0012] Preferably, both the first sealing mechanism and the second sealing mechanism include a rolling pressure mechanism. The rolling pressure mechanism includes a roller body, and the surface of the roller body is reticulated;

[0013] Inside the roller body, there is a heating mechanism for heating it. One end of the roller body is provided with a driving mechanism for driving its rotation, and the other end of the roller body is provided with an electric slip ring for supplying power to the heating mechanism, and the electric slip ring is electrically connected to the heating mechanism.

[0014] Preferably, the driving mechanism includes a servo motor and a gear set, and the gear set is respectively connected to the output end of the servo motor and one end of the roller body.

[0015] Preferably, the heating mechanism includes an electric heating wire and a temperature control module. The electric heating wire is spirally distributed on the inner wall of the roller body, and the electric heating wire is electrically connected to the temperature control module.

[0016] Preferably, the first sealing mechanism and the second sealing mechanism further include a bag mouth expansion mechanism. The bag mouth expansion mechanism includes a suction cup, and the back of the suction cup is provided with a propulsion mechanism three for driving its lifting;

[0017] The suction cup is made of latex material, and the propulsion mechanism three is an electromagnetic push rod.

[0018] Preferably, the first sealing mechanism and the second sealing mechanism are close to the sealing groove, and the bag mouth expanding mechanism is close to the air extraction mechanism inside the bag;

[0019] An elastic strip is arranged between the rolling press mechanism and the bag mouth expanding mechanism. The inside of the elastic strip is hollow, and the protruding part of the elastic strip is higher than the surface of the roller body.

[0020] Preferably, the air extraction mechanism inside the bag includes a nozzle and an air chamber. The nozzle is communicated with the air chamber, and a second propulsion mechanism for driving its movement is arranged on one side of the air chamber away from the nozzle;

[0021] The second propulsion mechanism is a servo electric cylinder. The inside of the nozzle is hollow, and the external shape of the nozzle is flat.

[0022] Preferably, the air chamber is connected with a first air pipe.

[0023] Preferably, the air pumping mechanism includes a vacuum pump, a manifold block and a second air pipe. The vacuum pump is communicated with the second air pipe through the manifold block;

[0024] Solenoid valves are arranged at the connection parts of the first air pipe and the second air pipe with the air chamber.

[0025] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0026] 1. By setting the transmission mechanism and the sealing groove, the present invention achieves the effects of improving the packaging efficiency and reducing manual intervention. Workers can directly place the packaging bag containing frozen meat products on the transmission mechanism, and the frozen meat products are continuously transmitted through the transmission mechanism. Moreover, the bag mouth of the packaging bag can enter the sealing groove along the guiding groove, reducing the operation steps of manually placing the packaging bag, reducing the manual labor intensity and improving the packaging efficiency of frozen meat products at the same time.

[0027] 2. Through the first sealing mechanism and the second sealing mechanism, the present invention achieves the effect of improving the sealing tightness. The first sealing mechanism and the second sealing mechanism respectively drive the roller body to rotate through the driving mechanism, and can perform continuous hot rolling along the bag mouth direction, so as to form seals with different widths, effectively ensuring the tightness of the vacuum packaging of frozen meat products and preventing air leakage at the sealing part during the subsequent storage of frozen meat products.

[0028] 3. By setting the bag mouth expanding mechanism, the present invention achieves the effect of ensuring the accurate intervention of the air extraction mechanism inside the bag into the packaging bag. The two packaging layers of the bag mouth can be separated through the expanding mechanism, which is convenient for the nozzle to smoothly extend into the packaging bag, so as to perform the air extraction operation inside the packaging bag and ensure the reliability of the vacuum packaging operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 Schematic diagram of the external structure of the present invention;

[0030] Figure 2 Schematic diagram of the front view structure of the present invention;

[0031] Figure 3 Schematic diagram of the rear view structure of the present invention;

[0032] Figure 4 Schematic diagram of the side view structure of the present invention;

[0033] Figure 5 Schematic diagram of the internal structure of the packaging mechanism of the present invention;

[0034] Figure 6 Schematic diagram of the position distribution structure of the first sealing mechanism, the second sealing mechanism and the air extraction mechanism inside the bag of the present invention;

[0035] Figure 7 Schematic diagram of the internal structure of the first sealing mechanism and the second sealing mechanism of the present invention;

[0036] Figure 8 Schematic diagram of the external structure of the bag mouth expansion mechanism of the present invention;

[0037] Figure 9 Schematic diagram of the front view structure of the rolling mechanism of the present invention;

[0038] Figure 10 Schematic diagram of the partial main sectional view structure of the rolling mechanism of the present invention;

[0039] Figure 11 Schematic diagram of the external structure of the air extraction mechanism inside the bag of the present invention;

[0040] Figure 12 Schematic diagram of the sectional view structure of the air nozzle of the present invention.

[0041] In the figure:

[0042] 100, transmission mechanism; 200, packaging mechanism;

[0043] 201, sealing groove; 202, guiding groove; 203, mounting rack;

[0044] 210, first sealing mechanism; 211, first propulsion mechanism; 220, second sealing mechanism;

[0045] 230, air extraction mechanism inside the bag; 231, air nozzle; 232, second propulsion mechanism; 233, air chamber; 234, first air pipe;

[0046] 240, air pumping mechanism; 241, vacuum pump; 242, manifold block; 243, second air pipe; 244, solenoid valve;

[0047] 250. Controller;

[0048] 300. Rolling mechanism; 310. Roller body; 320. Driving mechanism; 321. Servo motor; 322. Gear set; 330. Electric slip ring;

[0049] 340. Heating mechanism; 341. Electric heating wire; 342. Temperature control module;

[0050] 400. Elastic strip;

[0051] 500. Bag mouth expansion mechanism; 510. Suction cup; 511. Propulsion mechanism III. Specific implementation mode

[0052] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0053] Please refer to Figures 1 to 12 , the present invention provides the following two embodiments:

[0054] Embodiment 1:

[0055] Please refer to Figure 1 , a vacuum packaging machine for frozen meat products, comprising a transmission mechanism 100 and a packaging mechanism 200. The transmission mechanism 100 is a conveyor belt. The gap between the transmission mechanism 100 and the packaging mechanism 200 forms a guiding groove 202. A guiding groove 202 is provided on one side of the sealing groove 201, and the opening direction of the guiding groove 202 faces the input end of the transmission mechanism 100.

[0056] When the staff performs the vacuum packaging operation of frozen meat products, the frozen meat products are pre-placed in the packaging bag, and the packaging bag containing the frozen meat products is placed on the transmission mechanism 100, and the bag mouth exceeds the edge of the transmission mechanism 100, and at the same time the bag mouth faces the side of the packaging mechanism 200.

[0057] As the transmission mechanism 100 transports the packaging bag, the bag mouth of the packaging bag enters the sealing groove 201 under the guidance of the guiding groove 202. At this time, the packaging bag enters the vacuum packaging area, and the transmission mechanism 100 stops transporting at this time.

[0058] Please refer to Figures 4 to 6, the packaging mechanism 200 includes a first sealing mechanism 210, a second sealing mechanism 220, multiple in-bag air extraction mechanisms 230, and a pumping mechanism 240. Specifically, the number of in-bag air extraction mechanisms 230 is two, which can perform vacuum pumping operations on two packaging bags simultaneously.

[0059] Please refer to Figures 3 to 6 , the first sealing mechanism 210 and the second sealing mechanism 220 are respectively located on the upper and lower sides of the sealing groove 201. Above the first sealing mechanism 210, there is a first propulsion mechanism 211 for driving its lifting. The first propulsion mechanism 211 is a servo electric cylinder, and the first propulsion mechanism 211 is controlled by a controller 250.

[0060] Please refer to Figure 4 and Figure 7 , the first sealing mechanism 210 and the second sealing mechanism 220 are close to the sealing groove 201, and the bag mouth expanding mechanism 500 is close to the in-bag air extraction mechanism 230.

[0061] A resilient strip 400 is arranged between the rolling mechanism 300 and the bag mouth expanding mechanism 500. The inside of the resilient strip 400 is hollow, and the protruding part of the resilient strip 400 is higher than the surface of the roller body 310.

[0062] When the bag mouth is between the first sealing mechanism 210 and the second sealing mechanism 220, the first propulsion mechanism 211 moves synchronously, moving the first sealing mechanism 210 downward so that the resilient strip 400 inside the first sealing mechanism 210 contacts the packaging bag, thereby clamping the packaging bag, and keeping a certain distance between the roller body 310 and the surface of the packaging bag. The purpose is to prevent the roller body 310 from affecting the normal discharge of air in the packaging bag by the in-bag air extraction mechanism 230.

[0063] Subsequently, the bag mouth expanding mechanism 500 opens the bag mouth of the packaging bag.

[0064] Specifically, please refer to Figure 7 and Figure 8 , the first sealing mechanism 210 and the second sealing mechanism 220 also include a bag mouth expanding mechanism 500. The bag mouth expanding mechanism 500 includes a suction cup 510. On the back of the suction cup 510, there is a third propulsion mechanism 511 for driving its lifting. The suction cup 510 is made of latex material, and the third propulsion mechanism 511 is an electromagnetic push rod.

[0065] After the first sealing mechanism 210 and the second sealing mechanism 220 clamp the bag mouth of the packaging bag, the third propulsion mechanism 511 pushes out the suction cup 510. The suction cups 510 in the up and down directions move relatively. After contacting the packaging bag, the suction cups 510 in the two directions squeeze each other, squeezing out the air inside the suction cup 510, thereby adsorbing the packaging layers on both sides of the bag mouth through the suction cup 510.

[0066] Subsequently, the advancing mechanism three 511 resets, the suction cup 510 retracts, and the two packaging layers at the bag mouth open up, facilitating the insertion of the air nozzle 231 into the packaging bag from the bag mouth.

[0067] Specifically, please refer to Figure 6 and Figure 11 , there is a mounting bracket 203 provided below the interior of the packaging mechanism 200, and the in-bag air extraction mechanism 230 is disposed on the mounting bracket 203. The in-bag air extraction mechanism 230 can be fixed to the mounting bracket 203 by bolts, and the in-bag air extraction mechanism 230 can be flexibly adjusted in position along the mounting bracket 203, facilitating the spacing of the in-bag air extraction mechanism 230 to be applicable to packaging bags of different widths.

[0068] Please refer to Figure 5 , the air pumping mechanism 240 is connected to the in-bag air extraction mechanism 230. The in-bag air extraction mechanism 230 includes an air nozzle 231 and an air chamber 233. The air nozzle 231 is connected to the air chamber 233, and a second advancing mechanism 232 for driving its movement is provided on the side of the air chamber 233 away from the air nozzle 231.

[0069] Please refer to Figure 11 , the second advancing mechanism 232 is a servo electric cylinder. The interior of the air nozzle 231 is hollow, and the external shape of the air nozzle 231 is flat.

[0070] Specifically, when the bag mouth expanding mechanism 500 opens the bag mouth of the packaging bag, the in-bag air extraction mechanism 230 starts to operate.

[0071] The second advancing mechanism 232 moves the air chamber 233 together with the air nozzle 231, causing the air nozzle 231 to enter the packaging bag along the bag mouth.

[0072] It should be noted that the first advancing mechanism 211 moves the first sealing mechanism 210 downward, causing the first sealing mechanism 210 to contact the packaging bag with the elastic strip 400 inside the second sealing mechanism 220, thereby clamping the packaging bag and keeping a certain distance between the roller body 310 and the surface of the packaging bag. Moreover, after the air nozzle 231 extends into the bag mouth, since the elastic strip 400 is designed with a flexible material and the interior of the elastic strip 400 is hollow, when the air nozzle 231 passes through the elastic strip 400 but does not pass through the roller body 310, it will squeeze the elastic strip 400 to deform and pass through the elastic strip 400, causing the remaining part of the elastic strip 400 to still contact the surface of the packaging bag and remain in a squeezed state, so that the remaining parts at the bag mouth are still in a closed state.

[0073] When the air nozzle 231 extends into the bag mouth, the air pumping mechanism 240 starts to operate.

[0074] Specifically, please refer to Figure 6 and Figure 11, the air pumping mechanism 240 includes a vacuum pump 241, a manifold block 242, and an air pipe two 243. The vacuum pump 241 is connected to the air pipe two 243 through the manifold block 242, and solenoid valves 244 are provided at the connection between the air pipe two 243 and the air chamber 233.

[0075] The controller 250 controls the solenoid valve 244 corresponding to the air pipe two 243 to open, so as to open the air passage between the air nozzle 231, the air chamber 233, the air pipe two 243, the manifold block 242, and the vacuum pump 241. After the vacuum pump 241 operates, the air in the packaging bag can be pumped out through the air nozzle 231 until the air is completely discharged, and the air extraction state is maintained to maintain the vacuum degree in the packaging bag and compensate for the air leakage at the bag mouth of the packaging bag.

[0076] When the vacuum degree in the packaging bag reaches the requirement, the packaging bag is sealed.

[0077] Specifically, please refer to Figure 7 , both the first sealing mechanism 210 and the second sealing mechanism 220 include a rolling mechanism 300. The rolling mechanism 300 includes a roller body 310. The surface of the roller body 310 is reticulated. When the roller bodies 310 with reticulated surfaces come into contact with each other, it can meet the effective rolling effect and generate sufficient friction force, not only achieving a good hot rolling seal effect, but also preventing slippage between the roller body 310 and the surface of the packaging bag.

[0078] Please refer to Figure 10 , a heating mechanism 340 for heating the roller body 310 is provided inside the roller body 310. An electric slip ring 330 for supplying power to the heating mechanism 340 is provided at the other end of the roller body 310. The electric slip ring 330 is electrically connected to the heating mechanism 340. The electric slip ring 330 is composed of two parts, and contact pieces in contact with each other are provided between the two parts. While ensuring the conduction of the circuit, the two parts of the electric slip ring 330 can rotate freely, so that when the roller body 310 rotates, the internal heating mechanism 340 can be normally powered. The electric slip ring 330 belongs to the mature existing technology and will not be elaborated here too much.

[0079] The heating mechanism 340 includes a heating wire 341 and a temperature control module 342. The heating wire 341 is spirally distributed on the inner wall of the roller body 310, and the heating wire 341 is electrically connected to the temperature control module 342.

[0080] After the heating mechanism 340 is powered on, heat is generated, and the heat can be conducted to the surface of the roller body 310, causing the roller body 310 to heat up. When the roller body 310 presses the packaging bag, the heat can be conducted to the packaging bag, causing the packaging bag to melt. With the mutual extrusion between the roller bodies 310, the bag mouth can be hot rolled to form a seal, thereby sealing the bag mouth of the packaging bag.

[0081] After the heating mechanism 340 completes preheating, the temperature is feedback-controlled by the temperature control module 342 to prevent the temperature of the roller body 310 from being too high and causing damage to the packaging bag.

[0082] Please refer to Figure 9 , one end of the roller body 310 is provided with a driving mechanism 320 for driving its rotation. The driving mechanism 320 includes a servo motor 321 and a gear set 322. The gear set 322 is respectively connected to the output end of the servo motor 321 and one end of the roller body 310.

[0083] When the temperature of the roller body 310 reaches an appropriate temperature, the first propulsion mechanism 211 pushes out the first sealing mechanism 210 again, causing the first sealing mechanism 210 to descend a certain distance again, so that the roller body 310 contacts the surface of the packaging bag and applies a certain pressure.

[0084] The driving mechanism 320 drives the roller body 310 to rotate through the servo motor 321. The roller bodies 310 in the first sealing mechanism 210 and the second sealing mechanism 220 rotate synchronously, and the rotation directions of the two roller bodies 310 are opposite. Moreover, the roller body 310 in the second sealing mechanism 220 rotates counterclockwise from the Figure 7 perspective, and the bag mouth of the packaging bag can be moved towards the conveying mechanism 100 under the rotation of the roller body 310.

[0085] During the rotation of the roller body 310, the heated roller body 310 squeezes and conducts heat to the packaging bag, continuously heat-fusing the packaging layer at the bag mouth. The staff can set the running time or number of turns of the servo motor 321 to adjust the width of the heat fusion, thereby achieving the effect of forming seals with different widths, effectively ensuring the tightness of the vacuum packaging of frozen meat products, and preventing air leakage at the sealed part during the subsequent storage of frozen meat products.

[0086] When the set sealing width is reached, the first propulsion mechanism 211 resets, driving the first sealing mechanism 210 to rise, separating the first sealing mechanism 210 and the second sealing mechanism 220. The conveying mechanism 100 operates to output the frozen meat products that have completed vacuum sealing.

[0087] A controller 250 is provided inside the packaging mechanism 200. The controller 250 is electrically connected to the conveying mechanism 100, the first sealing mechanism 210, the second sealing mechanism 220, the in-bag air extraction mechanism 230, and the air pumping mechanism 240 respectively.

[0088] During the process of vacuum pumping and packaging sealing of frozen meat products, after the staff obtains the data of the packaging bag size and the sealing width, they can perform self-operation through the operating program set in the controller 250.

[0089] Workers only need to place the bagged frozen meat products on the transmission mechanism 100 to complete the automated transmission, vacuum pumping, and bag sealing operations. There is no need for workers to intervene and operate manually during the process, reducing the operation steps of manually placing the packaging bags and lowering the labor intensity.

[0090] Meanwhile, multiple in-bag air extraction mechanisms 230 can perform vacuum pumping operations on multiple packaging bags simultaneously, enabling batch operations and effectively improving the packaging efficiency of frozen meat products.

[0091] Embodiment Two:

[0092] Based on the content in the above Embodiment One, another embodiment is proposed:

[0093] For packaging operations that require injecting inert gas, specifically, when nitrogen or carbon dioxide needs to be injected into the packaging bag.

[0094] Please refer to Figure 11 , the air storage chamber 233 is connected to a first air pipe 234. Solenoid valves 244 are provided at the connection points of the first air pipe 234 and the air storage chamber 233. The input end of the first air pipe 234 can be connected to an inert gas cylinder.

[0095] After the air in the packaging bag is completely extracted by the air nozzle 231, the solenoid valve 244 of the second air pipe 243 is closed. Subsequently, the solenoid valve 244 of the first air pipe 234 is opened. The inert gas can be injected into the air storage chamber 233 through the first air pipe 234 and injected into the packaging bag by the air nozzle 231, forming an inert gas environment in the packaging bag and further improving the storage effect of frozen meat products.

[0096] After the injection of the inert gas is completed, the solenoid valve 244 of the first air pipe 234 is closed. The first sealing mechanism 210 and the second sealing mechanism 220 perform hot roll pressing and sealing on the bag mouth, completing the packaging of the frozen meat products and outputting them by the transmission mechanism 100.

[0097] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be encompassed within the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A vacuum packaging machine for frozen meat products, characterized in that: It includes a transmission mechanism (100) and a packaging mechanism (200), and a gap between the transmission mechanism (100) and the packaging mechanism (200) forms a guiding groove (202); The packaging mechanism (200) includes a first sealing mechanism (210), a second sealing mechanism (220), a plurality of in-bag air extraction mechanisms (230) and a gas pumping mechanism (240). The first sealing mechanism (210) and the second sealing mechanism (220) are respectively located on the upper and lower sides of the sealing groove (201), and a first propulsion mechanism (211) for driving its lifting is arranged above the first sealing mechanism (210); An installation frame (203) is arranged below the interior of the packaging mechanism (200), and the in-bag air extraction mechanisms (230) are all arranged on the installation frame (203), and the gas pumping mechanism (240) is communicated with the in-bag air extraction mechanisms (230); A controller (250) is arranged inside the packaging mechanism (200), and the controller (250) is electrically connected to the transmission mechanism (100), the first sealing mechanism (210), the second sealing mechanism (220), the in-bag air extraction mechanisms (230) and the gas pumping mechanism (240) respectively.

2. The vacuum packaging machine for frozen meat products according to claim 1, characterized in that: A guiding groove (202) is arranged on one side of the sealing groove (201), and the opening direction of the guiding groove (202) faces the input end of the transmission mechanism (100).

3. The vacuum packaging machine for frozen meat products according to claim 1, characterized in that: Both the first sealing mechanism (210) and the second sealing mechanism (220) include a rolling pressure mechanism (300), and the rolling pressure mechanism (300) includes a roller body (310), and the surface of the roller body (310) is reticulated; A heating mechanism (340) for heating it is arranged inside the roller body (310), a driving mechanism (320) for driving its rotation is arranged at one end of the roller body (310), an electric slip ring (330) for supplying power to the heating mechanism (340) is arranged at the other end of the roller body (310), and the electric slip ring (330) is electrically connected to the heating mechanism (340).

4. A vacuum packaging machine for frozen meat products according to claim 3, characterized in that: The driving mechanism (320) includes a servo motor (321) and a gear set (322), and the gear set (322) is respectively connected to the output end of the servo motor (321) and one end of the roller body (310).

5. The vacuum packaging machine for frozen meat products according to claim 3, wherein: The heating mechanism (340) includes an electric heating wire (341) and a temperature control module (342), the electric heating wire (341) is spirally distributed on the inner wall of the roller body (310), and the electric heating wire (341) is electrically connected to the temperature control module (342).

6. A vacuum packaging machine for frozen meat products according to claim 3, characterized in that: The first sealing mechanism (210) and the second sealing mechanism (220) further include a bag mouth expanding mechanism (500), and the bag mouth expanding mechanism (500) includes a suction cup (510), and a third propulsion mechanism (511) for driving its lifting is arranged on the back of the suction cup (510); The suction cup (510) is made of latex material, and the third propulsion mechanism (511) is an electromagnetic push rod.

7. A vacuum packaging machine for frozen meat products according to claim 4, characterized in that: The sealing mechanism I (210) and the sealing mechanism II (220) are close to the sealing groove (201), and the bag mouth expanding mechanism (500) is close to the air extraction mechanism inside the bag (230); A elastic strip (400) is arranged between the rolling mechanism (300) and the bag mouth expanding mechanism (500). The inside of the elastic strip (400) is hollow, and the protruding part of the elastic strip (400) is higher than the surface of the roller body (310).

8. A vacuum packaging machine for frozen meat products according to claim 1, characterized in that: The air extraction mechanism inside the bag (230) includes an air nozzle (231) and an air chamber (233). The air nozzle (231) is communicated with the air chamber (233), and a second propulsion mechanism (232) for driving its movement is arranged on one side of the air chamber (233) away from the air nozzle (231); The second propulsion mechanism (232) is a servo electric cylinder. The inside of the air nozzle (231) is hollow, and the external shape of the air nozzle (231) is flat.

9. The vacuum packaging machine for frozen meat products according to claim 8, wherein: The air chamber (233) is connected with a first air pipe (234).

10. A vacuum packaging machine for frozen meat products according to claim 9, characterized in that: The air pumping mechanism (240) includes a vacuum pump (241), a manifold block (242) and a second air pipe (243). The vacuum pump (241) is communicated with the second air pipe (243) through the manifold block (242); Solenoid valves (244) are arranged at the joints of the first air pipe (234) and the second air pipe (243) with the air chamber (233).

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