CN-121493349-B - Automatic vacuum film-covered packaging equipment and packaging method for preserved meat

CN121493349BCN 121493349 BCN121493349 BCN 121493349BCN-121493349-B

Abstract

The invention relates to the field of vacuum packaging, in particular to automatic vacuum film-coating packaging equipment and a packaging method for preserved meat. Including placing the platform, place the bench and be equipped with the constant head tank that is used for placing cured meat and hold in the palm the box to be equipped with negative pressure passageway and the vacuum pump that connects with it, sealing gland can follow vertical direction and remove, film conveying mechanism is used for carrying packaging film to place the bench top, film leveling mechanism, including clamping assembly and jacking subassembly, clamping assembly includes two anchor clamps, and two anchor clamps symmetry set up in the both sides of placing a width direction, and jacking subassembly includes annular top frame and jacking driver. According to the invention, the edges of the packaging film are clamped by the clamps at two sides, the middle part of the packaging film is lifted by the annular top frame to form a pre-tightening state, and then the upper sealing ring moves downwards along with the sealing gland to press the lower sealing ring on the annular top frame for sealing and vacuumizing, so that the packaging film is attached to the cured meat supporting box, and the flatness of the film coating is improved.

Inventors

CHI DONG
HUANG DI
Long Xinran
LIN ZEQIAN
BAO HAN

Assignees

广州皇上皇集团股份有限公司

Dates

Publication Date: 20260508
Application Date: 20260114

Claims (8)

1. An automatic vacuum coating equipment for packing preserved pork for vacuum coating the preserved pork in holding in palm the box, its characterized in that includes: The placing table is provided with a plurality of positioning grooves for placing the preserved pork support boxes in a matrix arrangement, and is provided with a negative pressure channel and a vacuum pump connected with the negative pressure channel to form a vacuumizing system; the sealing gland is arranged above the placing table and can move along the vertical direction, and a sealing cavity is formed between the sealing gland and the placing table when the sealing gland and the placing table are clamped; The film conveying mechanism is used for conveying the continuous packaging films to the position above the placing table, so that the packaging films are positioned between the placing table and the sealing gland; the film leveling mechanism comprises a clamping assembly and a jacking assembly matched with the clamping assembly; the clamping assembly comprises two clamps, the two clamps are symmetrically arranged on two sides of the width direction of the placing table and used for clamping the edges of the packaging film, and the clamped edges of the packaging film are positioned on the periphery of the placing table; The jacking assembly is arranged below the sealing gland and comprises an annular top frame and a jacking driver, wherein the annular top frame is arranged around the periphery of the placing table, the jacking driver is used for driving the annular top frame to lift, and the annular top frame is abutted against the lower surface of the packaging film in the upward moving process of the annular top frame; the lower surface of the sealing gland is provided with an upper sealing ring which surrounds the sealing gland, the upper surface of the annular top frame is provided with a lower sealing ring which surrounds the sealing gland, and when the upper sealing ring and the lower sealing ring are closed, the packaging film is in a sealed and pressed state; The four sides of the placement table are respectively provided with a first guide rod along the vertical direction, the upper ends of the first guide rods sequentially penetrate through the annular top frame and the sealing gland to upwards extend and are in sliding fit with the annular top frame and the sealing gland, and limit stops are fixedly arranged at the upper positions of the annular top frame and used for limiting the upward stroke of the annular top frame.
2. An automatic vacuum film-coated packaging apparatus for cured meat according to claim 1, wherein the jig comprises an upper jig plate and a lower jig plate, and a holding driver, the upper jig plate and the lower jig plate being disposed opposite to each other, both ends of each jig plate protruding in a conveying direction of the packaging film, respectively, and edges of the packaging film passing between the upper jig plate and the lower jig plate and being continuously conveyed.
3. The automatic vacuum film-covered packaging device for preserved meat according to claim 2, wherein second guide rods are respectively arranged on the periphery of the placement table along the vertical direction, the upper ends of the second guide rods sequentially penetrate through a lower clamping plate and an upper clamping plate to extend upwards, the lower clamping plate is fixedly connected with two second guide rods on the corresponding side, the upper clamping plate is in sliding fit with the two second guide rods on the corresponding side, and an anti-dropping ring is fixedly arranged at the upper ends of the second guide rods.
4. The automatic vacuum film-covered packaging device for cured meat according to claim 1, wherein one of the two jigs is provided with a blowing groove for blowing air flow to smooth out wrinkles of the film surface, and an air port of the blowing groove is horizontally oriented to the placement table, and when the annular top frame is pushed to contact with the limit stop, a surface of the packaging film to be stretched is parallel to the air port.
5. The automatic vacuum film-coated packaging apparatus for cured meat according to claim 4, wherein an air suction groove is provided on the other of the two jigs for sucking air flow in cooperation with the air suction groove to stabilize the film surface, and an air opening of the air suction groove is horizontally oriented to the placement table, and when the annular top frame is pushed to contact with the limit stopper, a surface of the packaging film to be stretched is parallel to the air opening.
6. The automatic vacuum film-covered packaging device for cured meat according to claim 1, wherein a cutting press plate and a pressing driver for driving the cutting press plate to perform cutting action are arranged in the sealing press cover, and a cutting die matched with the appearance of the cured meat box is arranged on the lower surface of the cutting press plate at the position corresponding to each positioning groove and is used for cutting off redundant packaging films along the edge of the box after vacuum film-covering is completed.
7. The automatic vacuum film-covered packaging device for cured meat according to claim 1, wherein the film conveying mechanism comprises an unreeling roller and a reeling roller, and the unreeling roller and the reeling roller are symmetrically arranged on two sides of the placing table along the conveying direction of the packaging film respectively and are used for conveying the packaging film from the unreeling roller to the reeling roller above the placing table.
8. An automatic vacuum film coating packaging method for cured meat, which is applied to the automatic vacuum film coating packaging equipment for cured meat according to any one of claims 1-7, and is characterized by comprising the following steps: s1, placing the support boxes filled with the preserved meat into a positioning groove of a placing table, and conveying the continuous packaging film from an unreeling roller to a reeling roller through the upper part of the placing table by a film conveying mechanism so that the packaging film covers all the support boxes; S2, closing an upper clamping plate and a lower clamping plate of the clamping assembly, clamping edges of two sides of the packaging film, driving the annular top frame to rise by the jacking driver, and pushing the middle part of the packaging film upwards to realize pre-tightening; s3, the sealing gland descends, the upper sealing ring and the lower sealing ring clamp the edges of the packaging film to form a sealing cavity, and the vacuum pump pumps air through the negative pressure channel, so that the packaging film is tightly adhered to the surfaces of the preserved meat and the support box; s4, cutting the pressing plate to cut off redundant packaging films along the edges of the support boxes under the drive of the pressing driver, taking out finished products, and recycling waste films by the winding roller to finish single-cycle operation.

Description

Automatic vacuum film-covered packaging equipment and packaging method for preserved meat Technical Field The invention relates to the field of vacuum packaging, in particular to automatic vacuum film-coating packaging equipment and a packaging method for preserved meat. Background At present, the preserved meat is generally packaged by adopting a vacuum film coating packaging mode. In the prior art, common preserved pork vacuum film coating equipment is used for placing preserved pork in a support box, then coating a plastic film, enabling the film to be clung to the surface of a product by utilizing negative pressure and pumping air, so that the body-attached vacuum packaging is realized. The utility model provides a coating membrane equipment is beaten to chinese patent of present disclosure authority bulletin number CN223200387U, the power distribution box comprises a box body, a plurality of carriages of horizontal sliding connection in the box, the built-in actuating mechanism of box lateral wall is connected to the carriage both sides, a plurality of double-layered posts of vertical sliding connection between the frame board of carriage both sides, the opposite face between the double-layered post is equipped with the electric plate, the output of pushing cylinder on the outer terminal surface longitudinal connection carriage of the outermost double-layered post, the box is opened the top and is equipped with the evacuation lid rather than the complex, it is equipped with a plurality of groups of sealing mechanism to evacuate to cover vertically in, sealing mechanism is located between two adjacent carriages. According to the patent, the film lacks of effective leveling before vacuumizing, and due to the elastic retraction characteristic of the film, relaxation, wrinkling or edge deflection easily occur after laying, so that the film cannot uniformly fit with the contour of a product in the subsequent vacuumizing process, the appearance is affected, wrinkles or gaps are more likely to occur in the edge area, and the sealing reliability is reduced. Therefore, at present, an automatic vacuum film-coating packaging device for cured meat is needed, which has the functions of film pretension and active leveling, and ensures that the film is tightly attached to the cured meat and the contour of a box in the vacuum adsorption process, thereby effectively improving the appearance quality of packaging and the sealing reliability. Disclosure of Invention To the problem that prior art exists, provide an automatic vacuum tectorial membrane equipment for packing of preserved pork, press from both sides anchor clamps tightly to packaging film edge to by annular roof frame with packaging film middle part jacking form the pre-tightening state, follow sealing gland through last sealing washer and move down and compress tightly the lower sealing washer on the annular roof frame and seal and take out the vacuum, make packaging film laminating preserved pork hold in the palm the box, promote tectorial membrane roughness. The invention provides automatic vacuum film-coating packaging equipment for cured meat, which is used for vacuum film-coating packaging of cured meat arranged in a support box and comprises a placement table, wherein a plurality of positioning grooves used for placing the support box for cured meat are arranged on the placement table in a matrix manner, a negative pressure channel and a vacuum pump connected with the negative pressure channel are arranged on the placement table to form a vacuumizing system, a sealing gland is arranged above the placement table and can move along the vertical direction, a sealing cavity is formed between the sealing gland and the placement table when the sealing gland is matched with the placement table, a film conveying mechanism is used for conveying continuous packaging films to the upper side of the placement table, the packaging films are positioned between the placement table and the sealing gland, a film leveling mechanism comprises a clamping assembly and a jacking assembly matched with the clamping assembly, the clamping assembly comprises two clamps, the two clamps are symmetrically arranged on two sides of the width direction of the placement table and used for clamping edges of the packaging films, the packaging films are positioned on the periphery of the placement table, and the jacking assembly is arranged below the sealing gland and comprises an annular jacking frame arranged around the periphery of the placement table and a jacking driver used for driving the jacking frame to lift the sealing gland to abut against the annular jacking frame, and the annular jacking frame is arranged on the annular packaging film in the annular packaging film. Preferably, the lower surface of the sealing gland is provided with an upper sealing ring encircling the sealing gland, the upper surface of the annular top frame is provided with a lower sealing ring encircling the