Vacuum packaging device for meat product production

Abstract

The invention relates to the technical field of vacuum packaging, in particular to a vacuum packaging device for meat product production, which comprises a vacuum box, and a sealing cover is rotatably mounted at the top end of the vacuum box. When the vacuum packaging device for meat product production is used, mounting plates on the two sides and a plurality of air suction heads are driven to expand through a two-way threaded rod so as to pull open a sealing opening of a packaging bag, the sealing opening of the packaging bag is sucked through cooperation with arrangement of a suction device and a suction cover, and adherends at the sealing opening are sucked and cleaned away; meanwhile, through the arrangement of the symmetrical limiting supporting plates at the bottom end, after a packaging bag containing meat products is placed in the vacuum box, the bottom end of the packaging bag can be supported and limited, the packaging bag is prevented from inclining and falling off, brine is prevented from flowing out, and the service life of the packaging bag is prolonged. And meanwhile, it can be ensured that the heating plate and the pressing plate can be accurately aligned when hot-pressing sealing is conducted every time.

Description

Technical Field

[0001] The invention relates to the technical field of vacuum packaging, in particular to a vacuum packaging device for meat product production. Background Art

[0002] Vacuum packaging, also known as reduced pressure packaging, is the process of extracting all the air in the packaging container and sealing it, maintaining the bag in a highly reduced pressure state. The scarce air is equivalent to the low oxygen effect, which deprives microorganisms of the living conditions, so as to keep the food fresh and free of disease and decay. Vacuum packaging is also a commonly used way to preserve marinated meat products.

[0003] Chinese patent authorization announcement No. CN118124877B discloses a vacuum packaging device for marinated meat products. The air in the sealed space is sucked through the exhaust port. Due to the low pressure in the sealed space, the sliding rod sliding inside the support column moves vertically upward. During the movement of the sliding rod, the engaging gear is driven to mesh and rotate. The sorting roller provided at the end of the engaging gear automatically moves the sealing mouth of the packaging bag so that the sealing mouth is moved to the surface of the hot pressing plate. The heating strip is pressed down by the cylinder to perform hot-melt sealing on the packaging bag on the surface of the hot pressing plate, thereby reducing the labor intensity of the operators during the sealing operation and improving the sealing efficiency.

[0004] However, when some existing prepared marinated meats are put into packaging bags, some thin bones or wet meat shreds may adhere to the seal of the packaging bags, causing the seal of the packaging bags to be not smooth during the subsequent vacuum sealing process, affecting the overall vacuum sealing effect. The existing vacuum packaging machines do not have a seal cleaning function and have certain limitations in actual use. Summary of the invention

[0005] The object of the present invention is to provide a vacuum packaging device for meat product production, so as to solve the problem raised in the above background technology that some existing prepared marinated meats may have some thin bones or wet meat shreds adhered to the seal of the packaging bag when they are loaded into the packaging bag, causing the sealing of the packaging bag to be not smooth during the subsequent hot pressing vacuum sealing process, thus affecting the overall vacuum sealing effect.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a vacuum packaging device for meat product production, comprising a vacuum box, a sealing cover is rotatably installed on the top of the vacuum box, and a heating plate and a pressing plate are symmetrically arranged inside the top of the vacuum box; an opening cleaning mechanism, which is arranged on one side of the bottom end of the heating plate and the pressing plate, and the function of the opening cleaning mechanism is to clean the adhesion at the sealing part of the packaging bag, and the opening cleaning mechanism comprises a limiting support plate and a mounting plate, the limiting support plate is symmetrically arranged inside one side of the vacuum box close to the bottom end, and the bottom end of the heating plate and the pressing plate are both fixed with mounting plates through a bracket; a limiting clamping mechanism, which is arranged on one side of the bottom end of the limiting support plate.

[0007] Furthermore, the opening cleaning mechanism also includes a bidirectional threaded rod, an auxiliary rod and a stepper motor, one end of the heating plate and the pressing plate is laterally penetrated by a sliding auxiliary rod, and the other end of the heating plate and the pressing plate is laterally penetrated by a bidirectional threaded rod connected by a thread, and both ends of the bidirectional threaded rod and the auxiliary rod are rotatably installed on one side of the inner wall of the vacuum box, a stepper motor is fixed to the outside of one side of the vacuum box, and the output end of the stepper motor is coaxially fixed to one end of the bidirectional threaded rod.

[0008] Furthermore, the opening cleaning mechanism also includes an air suction head, a spring guide tube, an air suction pump and a suction device. A plurality of air suction heads are installed at even intervals inside the mounting plate. An air suction pump is installed on the outside of one side of the vacuum box, and a spring guide tube is installed on the output end of the air suction pump. One end of the air suction head is installed and connected to the inside of one side of the spring guide tube, and a suction device is fixed to the outside of the top end of the sealing cover between the heating plate and the pressing plate.

[0009] Furthermore, the opening cleaning mechanism also includes a suction hood and a connecting stretch tube. The sealing cover is connected and installed with a connecting stretch tube near the inside of the suction device. One end of the connecting stretch tube is connected and installed with one end of the suction device, and the other end of the connecting stretch tube is connected and installed with a suction hood, and the suction end of the suction hood faces between the heating plate and the pressing plate, and the suction hood is arranged in an elliptical shape.

[0010] Furthermore, the limit clamping mechanism includes a rotating rod and an elastic pull rope, the side profile of the symmetrically arranged limit support plate is V-shaped, the bottom end of the limit support plate is fixedly installed with a rotating rod, both ends of the rotating rod are embedded and rotatably installed on one side inner wall of the vacuum box, and a number of elastic pull ropes are connected and fixed between the outer surfaces of one side of the two symmetrically arranged limit support plates.

[0011] Furthermore, the limit clamping mechanism also includes a connecting rod, a limit gear and a limit rack. The connecting rod is fixedly installed on one side of the heating plate and the pressing plate, the limit gear is fixed through one side of the rotating rod, and the limit rack is fixed on the side of the connecting rod close to the limit gear, and one side of the limit rack is meshingly connected with one side of the limit gear.

[0012] Furthermore, the limit clamping mechanism also includes a fixing frame and a rubber pressure plate. The fixing frame is fixed on the inner wall of the limit support plate away from the top end of the limit gear, and the rubber pressure plate is transversely fixed on one end of the fixing frame.

[0013] Furthermore, a shifting mechanism is provided on one side of the suction hood, and the shifting mechanism includes a limit frame, magnet one and magnet two. The limit frames are fixed at the edges of both sides of the bottom end of the suction hood, and magnet one is fixed through the side of the limit frame away from the suction hood, and magnet two is fixed at the edge of the top side of the heating plate and the pressing plate close to magnet one.

[0014] Furthermore, the shifting mechanism also includes a guide rod and a return spring. The top of the limit frame is fixed with a guide rod. The top of the guide rod passes through a sliding seal installed on the outside of one side of the top of the sealing cover. A return spring is installed on the outside of one side of the guide rod. Both ends of the return spring are respectively installed on one side of the sealing cover and the limit frame.

[0015] Furthermore, the shifting mechanism also includes a fixed rack, a sealing plate, a rotating shaft and a positioning gear. A fixed rack is longitudinally fixed to the inner wall of the sealing cover on one side close to the connection stretching tube. A rotating shaft is transversely penetrated and rotatably installed inside the top joint pipe of the suction hood. A sealing plate is penetrated and fixed to the outer surface of the rotating shaft located inside the joint pipe. A positioning gear is fixed to the through end of one side of the rotating shaft, and one side of the positioning gear is meshed and connected with one side of the fixed rack.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. When in use, the two-way threaded rod drives the mounting plates on both sides and several suction heads to expand so as to open the sealing part of the packaging bag, and cooperates with the setting of the suction device and the suction hood to suck the sealing part of the packaging bag, and suck and clean the adhesion on the sealing part, so as to automatically clean the sealing part, ensure the hot pressing vacuum sealing effect in the later stage, and make the overall use effect better. At the same time, through the setting of the symmetrical limiting support plate at the bottom, the bottom of the packaging bag containing meat products can be lifted and limited after being placed in the vacuum box, so as to prevent the packaging bag from tilting and falling and the brine from flowing out, and at the same time, it can ensure that the heating plate and the pressing plate can be accurately aligned every time the hot pressing sealing is performed; 2. When the bidirectional threaded rod drives the heating plates, pressing plates and several suction heads on both sides to expand and open the sealing part of the packaging bag, it will drive the connecting rods on both sides to expand synchronously. When the connecting rod moves, it will drive the limit rack on one side to move, thereby driving the meshing limit gear to rotate, so that the symmetrical limit support plate at the bottom drives the top fixing frame and the rubber pressure plate to rotate and squeeze in the middle, thereby squeezing the middle of the packaging bag, thereby isolating the conditioned meat poured into the bottom of the packaging bag, ensuring that the top suction hood will not suck the conditioned meat poured into the bottom of the packaging bag during suction, ensuring the overall cleaning effect, avoiding the situation of wrong suction and over-suction, making the overall cleaning more stable and convenient, and the overall use effect is better; 3. When the heating plate and the pressing plate expand and move to drive several suction heads to pull the sealing part of the bag to a certain distance, the magnets 2 on both sides of the heating plate and the pressing plate are aligned with the magnets on both sides of the bottom end of the suction hood, so that magnets 1 and 2 are aligned and adsorbed, thereby pulling the top suction hood down to the opening of the bag, so that the overall suction effect is better. At the same time, the suction hood will make the positioning gear mesh with the fixed rack and rotate during the downward movement, thereby driving the rotating shaft and the sealing plate to rotate, so that the connecting stretching tube is opened and the adhered matter can be sucked out. When the cleaning is completed, the heating plate and the pressing plate move back, and magnets 1 and 2 are disengaged. When the suction hood moves back synchronously, the rotating shaft and the sealing plate rotate and close, ensuring that the vacuum box is in a sealed state as a whole, ensuring the vacuum sealing effect in the later stage, and the overall use is convenient, and the opening and closing are automatically triggered. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of the vacuum packaging device of the present invention; Figure 2 It is a schematic diagram of the overall cross-sectional three-dimensional structure of the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure of the opening cleaning mechanism and the vacuum box of the present invention in partial cross-section; Figure 4 This is a schematic diagram showing the vacuum head of the present invention moving to absorb a packaging bag; Figure 5 This is a top view demonstration diagram of the vacuum head of the present invention sucking the sealed packaging bag and opening it; Figure 6 It is a schematic diagram of the three-dimensional structure of the position limiting clamping mechanism and the position limiting support plate of the present invention; Figure 7 For the present invention Figure 6 The enlarged structural diagram at A in the middle; Figure 8 This is a schematic diagram showing the rotation of the position limiting support plate of the present invention; Fig. 9 It is a schematic diagram of the three-dimensional structure of the displacement mechanism and the sealing cover of the present invention; Fig.10 For the present invention Fig. 9 The enlarged structural diagram at B in the middle; Fig.11 This is a schematic diagram for demonstrating the downward movement of the suction hood of the present invention.

[0018] In the figure: 1. vacuum box; 2. sealing cover; 3. heating plate; 4. pressing plate; 5. opening cleaning mechanism; 501. bidirectional threaded rod; 502. auxiliary rod; 503. stepping motor; 504. limit support plate; 505. mounting plate; 506. suction head; 507. spring guide tube; 508. suction pump; 509. suction hood; 5010. suction device; 5011. connecting stretching tube; 6. limit clamping mechanism; 601, connecting rod; 602, rotating rod; 603, limiting gear; 604, limiting rack; 605, elastic pull rope; 606, fixing frame; 607, rubber pressure plate; 7, shifting mechanism; 701, limiting frame; 702, magnet 1; 703, magnet 2; 704, guide rod; 705, reset spring; 706, fixing rack; 707, sealing plate; 708, rotating shaft; 709, positioning gear. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] See also Figure 1-11 The present invention provides a technical solution: a vacuum packaging device for meat product production, comprising a vacuum box 1, a sealing cover 2 is rotatably installed on the top of the vacuum box 1, a heating plate 3 and a pressing plate 4 are symmetrically arranged inside the top of the vacuum box 1; an opening cleaning mechanism 5, the opening cleaning mechanism 5 is arranged on one side of the bottom end of the heating plate 3 and the pressing plate 4, the function of the opening cleaning mechanism 5 is to clean the adhesion at the sealing part of the packaging bag, the opening cleaning mechanism 5 comprises a limiting support plate 504 and a mounting plate 505, the limiting support plate 504 is symmetrically arranged inside one side of the vacuum box 1 close to the bottom end, and the bottom end of the heating plate 3 and the pressing plate 4 are fixed with the mounting plate 505 through a bracket; a limiting clamping mechanism 6, the limiting clamping mechanism 6 is arranged on one side of the bottom end of the limiting support plate 504.

[0021] When the vacuum packaging device for meat product production provided by the present scheme is actually used, the packaging bag containing the prepared meat is first placed into the interior of the vacuum box 1, and the bottom of the packaging bag is lifted by the limiting support plate 504 symmetrically arranged inside the bottom end of the vacuum box 1. After the placement is completed, the sealing cover 2 is closed, and then the opening cleaning mechanism 5 is started to suck the sealing part of the packaging bag, and the adhesion at the sealing part is sucked and cleaned, so as to automatically clean the sealing part to ensure the subsequent hot pressing vacuum sealing effect. During the operation of the opening cleaning mechanism 5, the limiting clamping mechanism 6 will be triggered to operate synchronously, so as to isolate the prepared meat poured into the bottom of the packaging bag, and ensure that the prepared meat poured into the bottom of the packaging bag will not be sucked during the suction cleaning operation, so as to ensure the overall cleaning effect and avoid the situation of wrong suction or over suction. After the overall cleaning is completed, the heating plate 3 and the pressing plate 4 are reset, and then the vacuum box 1 is vacuumized by the existing vacuum component, and finally the hot pressing package is taken out to complete the overall vacuum packaging operation.

[0022] In some embodiments, the opening cleaning mechanism 5 also includes a bidirectional threaded rod 501, an auxiliary rod 502 and a stepper motor 503. The auxiliary rod 502 is slidably installed transversely on one end of the heating plate 3 and the pressing plate 4, and the bidirectional threaded rod 501 is threadedly installed transversely on the other end of the heating plate 3 and the pressing plate 4. Both ends of the bidirectional threaded rod 501 and the auxiliary rod 502 are rotatably installed on one side of the inner wall of the vacuum box 1. A stepper motor 503 is fixed to the outside of one side of the vacuum box 1, and the output end of the stepper motor 503 is coaxially fixed with one end of the bidirectional threaded rod 501; the opening cleaning mechanism 5 also includes an air suction head 506, a spring guide tube 507, an air suction pump 508 and an aspirator 5010. Several air suction heads 506 are installed at equal intervals inside the mounting plate 505. An air suction pump 508 is installed on the outside of one side of the vacuum box 1, and a spring guide tube 507 is installed on the output end of the air suction pump 508, one end of the air suction head 506 is installed and connected to the inside of one side of the spring guide tube 507, and a suction device 5010 is fixed to the outside of the top end of the sealing cover 2 near the heating plate 3 and the pressing plate 4; the opening cleaning mechanism 5 also includes a suction hood 509 and a connecting stretching tube 5011, and a connecting stretching tube 5011 is installed through the inside of the sealing cover 2 near the suction device 5010, one end of the connecting stretching tube 5011 is installed and connected to one end of the suction device 5010, and the other end of the connecting stretching tube 5011 is installed and connected, and the suction end of the suction hood 509 faces between the heating plate 3 and the pressing plate 4, and the suction hood 509 is elliptical.

[0023] Combination Figure 2 , Figure 3 and Figure 3As shown, when cleaning the sealing part of the packaging bag, first start the stepper motor 503 on one side, and through the rotation of the output shaft of the stepper motor 503, drive the bidirectional threaded rod 501 to rotate synchronously, cooperate with the limit of the auxiliary rod 502, so that the heating plate 3 and the pressing plate 4 drive the bottom mounting plate 505 and the suction head 506 to move synchronously in the center, so that the suction head 506 contacts the surface of the packaging bag near the sealing part, and then start the outer suction pump 508 in conjunction with the spring guide tube 507, so that the suction head 506 adsorbs the surface of the packaging bag near the sealing part, and then start again. The stepper motor 503 reverses its output shaft to drive the heating plate 3, the pressing plate 4 and the suction head 506 at the bottom to expand and move synchronously, thereby opening the sealing part of the packaging bag to facilitate the suction hood 509 to perform positioning suction. Then, by starting the suction device 5010 and coordinating the conduction of the connecting stretching tube 5011 and the positioning of the suction hood 509, the sealing part of the packaging bag is sucked and the adhesions on the sealing part are sucked and cleaned, thereby automatically cleaning the sealing part to ensure the subsequent hot pressing vacuum sealing effect and make the overall use effect better.

[0024] In some embodiments, the limiting clamping mechanism 6 includes a rotating rod 602 and an elastic pull rope 605. The side profile of the symmetrically arranged limiting support plate 504 is V-shaped. The bottom end of the limiting support plate 504 is fixedly installed with a rotating rod 602. Both ends of the rotating rod 602 are embedded and rotatably installed on one side of the inner wall of the vacuum box 1. Several elastic pull ropes 605 are connected and fixed between the outer surfaces of one side of the two symmetrically arranged limiting support plates 504.

[0025] Combination Figure 5 and Figure 6 As shown, by the symmetrical setting of the limiting support plate 504 at the bottom end of the vacuum box 1, the bottom end of the packaging bag containing the meat product can be lifted and limited after being placed in the vacuum box 1, so as to prevent the packaging bag from tilting and falling and the brine from flowing out. At the same time, by the setting of multiple elastic drawstrings 605 on both sides, when the packaging bag containing the prepared meat is placed on the top of the limiting support plate 504, the elastic drawstrings 605 on both sides can limit the positions of the two sides of the packaging bag, ensuring that the suction head 506 can suck and open the two side surfaces of the packaging bag near the middle position, ensuring that the bag mouth can be completely opened, avoiding insufficient suction and opening, thereby ensuring that the suction effect of the suction hood 509 is better and more comprehensive during suction.

[0026] In some embodiments, the limit clamping mechanism 6 also includes a connecting rod 601, a limit gear 603 and a limit rack 604. The connecting rod 601 is fixedly installed on one side of the heating plate 3 and the pressing plate 4, and the limit gear 603 is fixed on one side of the rotating rod 602. The limit rack 604 is fixed on the side of the connecting rod 601 close to the limit gear 603, and one side of the limit rack 604 is meshed and connected with one side of the limit gear 603; the limit clamping mechanism 6 also includes a fixed frame 606 and a rubber pressure plate 607. The inner wall of the limit support plate 504 away from the top end of the limit gear 603 is fixed with a fixed frame 606, and a rubber pressure plate 607 is laterally fixed at one end of the fixed frame 606.

[0027] Combination Figure 6 , Figure 7 and Figure 8 As shown, when the bidirectional threaded rod 501 drives the heating plates 3, the pressing plates 4 and several suction heads 506 on both sides to expand and open the sealing part of the packaging bag, it will drive the connecting rods 601 on both sides to expand synchronously. When the connecting rods 601 move, they will drive the limiting rack 604 on one side to move, thereby driving the meshing limiting gear 603 to rotate, so that the symmetrical limiting support plate 504 at the bottom drives the top fixing frame 606 and the rubber pressure plate 607 to rotate and extrude in the middle, thereby squeezing the middle of the packaging bag, thereby isolating the prepared meat poured into the bottom of the packaging bag, ensuring that the top suction hood 509 will not suck up the prepared meat poured into the bottom of the packaging bag during suction, ensuring the overall cleaning effect, avoiding the situation of wrong suction and over-suction, making the overall cleaning use more stable and convenient, and the overall use effect is better.

[0028] In some embodiments, a shifting mechanism 7 is provided on one side of the suction hood 509, and the shifting mechanism 7 includes a limit frame 701, magnet one 702 and magnet two 703. The limit frames 701 are fixed at the edges of both sides of the bottom end of the suction hood 509, and magnet one 702 is fixed through the side of the limit frame 701 away from the suction hood 509, and magnet two 703 is fixed at the edge of the top side of the heating plate 3 and the pressing plate 4 close to magnet one 702.

[0029] Combination Fig. 9 and Fig.11 As shown, when the heating plate 3 and the pressing plate 4 expand and move to drive the plurality of suction heads 506 to pull the sealing part of the bag open and move to a certain distance, the magnet 2 703 on both sides of the heating plate 3 and the pressing plate 4 are aligned with the magnet 1 702 on both sides of the bottom of the suction hood 509, so that the magnet 1 702 and the magnet 2 703 are aligned and adsorbed, thereby pulling the top suction hood 509 as a whole down to the opening of the bag, so that the overall suction effect is better and more concentrated.

[0030] In some embodiments, the shifting mechanism 7 also includes a guide rod 704 and a return spring 705. The top of the limit frame 701 is fixed with a guide rod 704. The top of the guide rod 704 passes through a sliding seal installed on the outside of the top side of the sealing cover 2. The outside of one side of the guide rod 704 passes through a sleeve with a return spring 705. The two ends of the return spring 705 are respectively installed on one side of the sealing cover 2 and the limit frame 701; the shifting mechanism 7 also includes a fixed rack 706, a sealing plate 707, a rotating shaft 708 and a positioning gear 709. A fixed rack 706 is longitudinally fixed to the inner wall of one side of the sealing cover 2 close to the connection stretching tube 5011. A rotating shaft 708 is rotatably installed transversely through the inside of the top joint pipe of the suction hood 509. The outer surface of the rotating shaft 708 located inside the joint pipe passes through a sealing plate 707, and a positioning gear 709 is fixed to a through end of one side of the rotating shaft 708, and one side of the positioning gear 709 is meshed and connected with one side of the fixed rack 706.

[0031] Combination Fig. 9 , Fig.10 and Fig.11 As shown, when the suction hood 509 is in the process of descending and moving, the positioning gear 709 and the fixed rack 706 will be meshed and rotated, thereby driving the rotating shaft 708 and the sealing plate 707 to rotate, so that the connecting stretching tube 5011 is opened, so that the adhesion of the suction hood 509 can be sucked out when suction is performed. When cleaning is completed, the heating plate 3 and the pressing plate 4 move back, and the magnet 1 702 and the magnet 2 703 are separated. At this time, the reset spring 705 that was originally stretched and descended loses its tension and rebounds and resets, thereby driving the suction hood 509 to move back synchronously. When the suction hood 509 moves back, the positioning gear 709 and the fixed rack 706 are meshed and rotated in the opposite direction, thereby driving the rotating shaft 708 and the sealing plate 707 to rotate, close and reset, so that the connecting stretching tube 5011 is closed, thereby ensuring that the vacuum box 1 is in a sealed state as a whole, ensuring the vacuum sealing effect in the later stage, and the overall use is convenient, and the opening and closing are automatically triggered.

[0032] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. Machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The content not described in detail in this specification belongs to the prior art known to professional and technical personnel in this field.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vacuum packaging device for meat product production, comprising a vacuum box (1), characterized in that: A sealing cover (2) is rotatably mounted on the top of the vacuum box (1), and a heating plate (3) and a pressing plate (4) are symmetrically arranged inside the top of the vacuum box (1); An opening cleaning mechanism (5), the opening cleaning mechanism (5) being arranged on one side of the bottom end of the heating plate (3) and the pressing plate (4), the function of the opening cleaning mechanism (5) being to clean adhesions at the sealing portion of the packaging bag, the opening cleaning mechanism (5) comprising a limiting support plate (504) and a mounting plate (505), the limiting support plate (504) being symmetrically arranged inside one side of the vacuum box (1) close to the bottom end, and the mounting plate (505) being fixed to one side of the bottom end of the heating plate (3) and the pressing plate (4) via a bracket; A position limiting clamping mechanism (6), wherein the position limiting clamping mechanism (6) is arranged on one side of the bottom end of the position limiting support plate (504).

2. A vacuum packaging device for meat product production according to claim 1, characterized in that: The opening cleaning mechanism (5) further comprises a bidirectional threaded rod (501), an auxiliary rod (502) and a stepping motor (503); one end of the heating plate (3) and the pressing plate (4) is slidably mounted with the auxiliary rod (502) through the transverse direction, and the other end of the heating plate (3) and the pressing plate (4) is threadedly mounted with the bidirectional threaded rod (501) through the transverse direction, and both ends of the bidirectional threaded rod (501) and the auxiliary rod (502) are rotatably mounted on an inner wall of one side of the vacuum box (1); a stepping motor (503) is fixed to the outside of one side of the vacuum box (1), and an output end of the stepping motor (503) is coaxially fixed with one end of the bidirectional threaded rod (501).

3. A vacuum packaging device for meat product production according to claim 2, characterized in that: The opening cleaning mechanism (5) further comprises an air suction head (506), a spring guide tube (507), an air suction pump (508) and an aspirator (5010); a plurality of air suction heads (506) are installed at even intervals inside the mounting plate (505); an air suction pump (508) is installed on the outside of one side of the vacuum box (1); and a spring guide tube (507) is installed at the output end of the air suction pump (508); one end of each of the air suction heads (506) is installed and connected to the inside of one side of the spring guide tube (507); and an aspirator (5010) is fixed to the outside of the top end of the sealing cover (2) between the heating plate (3) and the pressing plate (4).

4. A vacuum packaging device for meat product production according to claim 3, characterized in that: The opening cleaning mechanism (5) further comprises a suction hood (509) and a connecting stretch tube (5011); the sealing cover (2) is provided with a connecting stretch tube (5011) which penetrates and is connected to the interior of the suction device (5010); one end of the connecting stretch tube (5011) is connected and installed with one end of the suction device (5010); the other end of the connecting stretch tube (5011) is connected and installed with the suction hood (509); the suction end of the suction hood (509) faces between the heating plate (3) and the pressing plate (4); and the suction hood (509) is arranged in an elliptical shape.

5. The vacuum packaging device for meat product production according to claim 1, characterized in that: The position limiting clamping mechanism (6) comprises a rotating rod (602) and an elastic pull rope (605); the side profile of the symmetrically arranged position limiting support plates (504) is arranged in a V-shape; the bottom end of each position limiting support plate (504) is penetrated by a rotating rod (602) fixedly installed; both ends of the rotating rod (602) are embedded and rotatably installed on one side inner wall of the vacuum box (1); and a plurality of elastic pull ropes (605) are connected and fixedly installed between the outer surfaces of one side of the two symmetrically arranged position limiting support plates (504).

6. A vacuum packaging device for meat product production according to claim 5, characterized in that: The limit clamping mechanism (6) further comprises a connecting rod (601), a limit gear (603) and a limit rack (604); the connecting rod (601) is fixedly mounted on one side of the heating plate (3) and the pressing plate (4); the limit gear (603) is fixedly penetrated on one side of the rotating rod (602); the limit rack (604) is fixed on one side of the connecting rod (601) close to the limit gear (603); and one side of the limit rack (604) is meshedly connected with one side of the limit gear (603).

7. A vacuum packaging device for meat product production according to claim 6, characterized in that: The position limiting clamping mechanism (6) further comprises a fixing frame (606) and a rubber pressure plate (607); the fixing frame (606) is fixed on the inner wall of the top end of the position limiting support plate (504) away from the position limiting gear (603); and the rubber pressure plate (607) is transversely fixed on one end of the fixing frame (606).

8. The vacuum packaging device for meat product production according to claim 4, characterized in that: A shift mechanism (7) is provided on one side of the suction hood (509), and the shift mechanism (7) comprises a limit frame (701), magnet one (702) and magnet two (703); the limit frames (701) are fixed at both side edges of the bottom end of the suction hood (509), and magnet one (702) is fixed through the side of the limit frame (701) away from the suction hood (509); magnet two (703) is fixed at the edge of the top side of the heating plate (3) and the pressing plate (4) close to magnet one (702).

9. A vacuum packaging device for meat product production according to claim 8, characterized in that: The displacement mechanism (7) further comprises a guide rod (704) and a return spring (705); the top end of the limit frame (701) is fixed with a guide rod (704); the top end of the guide rod (704) passes through a sliding seal and is mounted on the outside of one side of the top end of the sealing cover (2); a return spring (705) is sleeved and mounted on one side of the guide rod (704); and the two ends of the return spring (705) are respectively mounted on one side of the sealing cover (2) and the limit frame (701).

10. A vacuum packaging device for meat product production according to claim 9, characterized in that: The displacement mechanism (7) further comprises a fixed rack (706), a sealing plate (707), a rotating shaft (708) and a positioning gear (709); a fixed rack (706) is longitudinally fixed to the inner wall of the sealing cover (2) close to the connecting stretch tube (5011); a rotating shaft (708) is transversely penetrated and rotatably installed inside the top joint tube of the suction hood (509); a sealing plate (707) is penetrated and fixed to the outer surface of the rotating shaft (708) located inside the joint tube; a positioning gear (709) is fixed to the through end of one side of the rotating shaft (708), and one side of the positioning gear (709) is meshingly connected to one side of the fixed rack (706).

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