CN-122009603-A - Fresh frozen local chicken packing plant

CN122009603ACN 122009603 ACN122009603 ACN 122009603ACN-122009603-A

Abstract

The invention provides a packaging device for fresh frozen chickens, which relates to the technical field of fresh frozen packaging and comprises an ultra-ice temperature pretreatment mechanism, wherein an air drying assembly is arranged at the tail part of the ultra-ice temperature pretreatment mechanism, a split boxing mechanism is arranged at the tail end of the ultra-ice temperature pretreatment mechanism, a positive and negative pressure film sealing mechanism is arranged at the tail end of the split boxing mechanism, and the ultra-ice temperature pretreatment mechanism, the air drying assembly, the split boxing mechanism and the positive and negative pressure film sealing mechanism are all arranged through a heat insulation shell. According to the invention, under the synergistic effect of the internal and external pressure difference, the supercooling state and the opening of the muscle fiber gaps, the efficient and uniform permeation of CO 2 molecules into muscle tissues is promoted, so that the permeation amount of CO 2 gas in fresh-keeping gas into the muscle tissues of the native chickens and the residual oxygen amount in the package are reduced after the package box is sealed, and the good appearance and taste of the product are maintained while the shelf life is prolonged.

Inventors

CHEN MEIYING
LIU QI
FENG JING
ZHANG ZHENNAN
YANG CHAOWU
YU CHUNLIN
REN PENG
WANG BAOSHUN
WANG XI
LUO ZHENGWEI

Assignees

西南科技大学
旺苍县游霞农业科技开发有限公司

Dates

Publication Date: 20260512
Application Date: 20260413

Claims (10)

1. An iced fresh-earth chicken packaging device, characterized by comprising: The super-ice temperature pretreatment mechanism is used for immersing the slaughtered native chicken in the refrigerated salt solution so as to cool the chicken to a supercooled state without freezing, and opening muscle fiber gaps of the chicken through salt ions of the salt solution; the tail part of the super-ice temperature pretreatment mechanism is provided with an air drying component which is used for removing residual salt solution on the surface of the local chicken and in the abdominal cavity; The split-flow boxing mechanism is arranged at the tail end of the super-ice temperature pretreatment mechanism and is used for shunting the native chickens output by the super-ice temperature pretreatment mechanism and then loading the native chickens into a packaging box; The positive and negative pressure film sealing mechanism is arranged at the tail end of the split-flow boxing mechanism and is used for sealing the local chicken in the packaging box in the sealed cavity, vacuumizing the sealed cavity, filling CO 2 gas to form positive pressure, performing gas permeation on the local chicken, vacuumizing the sealed cavity again, injecting fresh-keeping gas to form micro positive pressure, and sealing the packaging box; the heat preservation and heat insulation shell is provided with an ultra-ice temperature pretreatment mechanism, an air drying assembly, a split-flow boxing mechanism and a positive and negative pressure film sealing mechanism which are all communicated with the heat preservation and heat insulation shell.
2. The packaging device for frozen fresh local chicken of claim 1, wherein the super-ice temperature pretreatment mechanism comprises: the ice table is provided with a liquid storage tank which is communicated with the heat preservation and insulation shell and is used for injecting salt solution; the hanging conveyor is arranged in the heat insulation shell in a penetrating mode, the hanging conveyor is provided with a concave section, the concave section is arranged corresponding to the liquid storage groove, the hanging conveyor is in transmission connection with a plurality of clamping jaws, the clamping jaws are used for clamping the native chickens, the hanging conveyor is connected with two opening sliding rails which are arranged in a splayed mode, and the two opening sliding rails are respectively connected with two sides of the opening end of the clamping jaws in a sliding mode; an ultrasonic transducer driven by the ultrasonic generator, the ultrasonic transducer being disposed in the reservoir; and the solution adjusting component is communicated with the liquid storage tank and is used for adjusting the concentration of the salt solution in the liquid storage tank and filtering the salt solution.
3. The chilled local chicken packaging unit of claim 2, wherein the solution conditioning assembly comprises: The conductivity sensor is arranged in the liquid storage tank and is used for monitoring the concentration of the salt solution; the first liquid storage tank is arranged in the heat insulation shell, is communicated with a first metering pump, is communicated with the liquid storage tank through a first pipeline and is used for storing saline solution; The second liquid storage tank is arranged in the heat insulation shell, is communicated with a second metering pump, is communicated with the liquid storage tank through a second pipeline and is used for storing process water; The filtering tank is arranged in the heat-preserving heat-insulating shell, a multi-stage filter screen is arranged in the middle of the filtering tank, the head of the filtering tank is communicated with the tail of the liquid storage tank through a third pipeline, and the tail of the filtering tank is communicated with the head of the liquid storage tank through a circulating pump; The waste liquid box is arranged outside the heat preservation and insulation shell, the waste liquid box is communicated with a third metering pump, the third metering pump is communicated with the head of the filtering tank through a fourth pipeline, the fourth pipeline is provided with a first electromagnetic valve, and a liquid level meter is arranged in the liquid storage tank.
4. The frozen fresh chicken packaging device of claim 1, wherein the air drying assembly comprises: the U-shaped bracket is connected in the heat preservation and insulation shell; The lifting column is connected to the bottom end in the U-shaped bracket, the lifting column is in transmission connection with an L-shaped probe rod, a silica gel sleeve is arranged on the outer wall of the L-shaped probe rod, the head end of the L-shaped probe rod is communicated with a wide-angle circular nozzle, and the tail end of the L-shaped probe rod is communicated with a first air pipe; Two-degree-of-freedom mechanisms I are arranged on two sides in the U-shaped bracket, the two-degree-of-freedom mechanisms I are in transmission connection with a U-shaped pipe with two ends closed, a plurality of flat nozzles are communicated with the inner side of the U-shaped pipe, and the U-shaped pipe is communicated with a second air pipe; The air pump is arranged outside the heat-preserving heat-insulating shell, the input end of the air pump is communicated with the heat-preserving heat-insulating shell through the air inlet pipe, the output end of the air pump is communicated with the air outlet pipe, the air outlet pipe penetrates through the heat-preserving heat-insulating shell, and the air outlet pipe is communicated with the first air pipe and the two second air pipes through the four-way joint.
5. The frozen fresh chicken packaging device of claim 1, wherein the split boxing mechanism comprises: The split-flow conveyor is arranged in the heat-preserving heat-insulating shell, and the output end of the split-flow conveyor is provided with a first guide plate; The temporary storage conveyor is arranged corresponding to the split conveyor, a plurality of groups of limiting plates are arranged on the temporary storage conveyor in an array manner, each group of limiting plates comprises four limiting plates, the four limiting plates are used for abutting against the periphery of the outer wall of the packaging box, and a plurality of second guide plates are arranged at the output end of the temporary storage conveyor; the box separating assembly is arranged corresponding to the temporary storage conveyor and used for separating the packaging boxes among the four limiting plates.
6. The frozen fresh chicken packaging device of claim 5, wherein the box assembly comprises: The door-shaped frame is connected in the heat preservation and insulation shell; The first conveyor is arranged at the top end of the door-shaped frame, the input end of the first conveyor penetrates through the heat-insulating shell, a plurality of pushing columns are arranged on the conveyor belt of the first conveyor, and the output end of the first conveyor is provided with a third guide plate; the limiting cylinder is connected to the top of the door-shaped frame, a guide cover is arranged on the limiting cylinder, a third guide plate is positioned in the guide cover, two second conveyors are symmetrically arranged in the limiting cylinder, a plurality of first distributing plates are arranged on a conveyor belt of each second conveyor, and the first distributing plates are used for distributing stacked packaging boxes; The displacement section of thick bamboo, it is connected on the door-type frame through two degree of freedom mechanisms II, and the displacement section of thick bamboo corresponds spacing section of thick bamboo setting, and the symmetry is equipped with two third conveyers in the displacement section of thick bamboo, and the conveyer belt of third conveyer is arranged and is equipped with a plurality of second and allocates the board, and the second is allocated the board and is used for separating one by one to the packing carton after the branch pile.
7. The packaging device of frozen fresh chicken of claim 1, wherein the positive and negative pressure film sealing mechanism comprises: the top of the support frame is connected with a lifting frame in a sliding manner, the lifting frame is driven by a lifting mechanism, the middle of the support frame is connected with a translation frame in a sliding manner, the translation frame is driven by the translation mechanism, one side of the lifting frame is provided with a plurality of unreeling roller groups, and the other side of the lifting frame is provided with a plurality of reeling roller groups; the upper sealing covers are arranged on the lifting frame, are communicated with a positive pressure sensor, a negative pressure sensor and an air inlet and outlet pipe, and are internally provided with heat sealing assemblies; the lower sealing covers are arranged on the translation frame and are in sealing connection with the upper sealing cover, positioning grooves for accommodating the packaging boxes are formed in the lower sealing covers, and jacking assemblies are arranged in the positioning grooves; the positive and negative pressure applying assembly is communicated with the air inlet and outlet pipes and is used for connecting a CO 2 gas source and a fresh-keeping gas source; The output conveyor is arranged below the lifting frame and is provided with a plurality of pushing electric cylinders and a plurality of fourth guide plates, the pushing electric cylinders are connected with a pushing pad, the pushing electric cylinders are located on one side of the lower sealing cover, and the fourth guide plates are located on the other side of the lower sealing cover.
8. The frozen fresh chicken packaging device of claim 7, wherein the heat seal assembly comprises: The first electric cylinder is connected with the top end of the upper sealing cover in a penetrating way, the first electric cylinder is connected with a connecting plate in a transmission way, the connecting plate is connected with a pressing plate through a plurality of telescopic rods, a buffer spring is arranged on the telescopic rods in a penetrating way, an annular heat seal is arranged at the bottom end of the pressing plate, the top end of the inner side of the upper sealing cover is connected with a first sealing ring pad, and the top end of the connecting plate is connected with a second sealing ring pad; The annular cutter is erected at the bottom end of the connecting plate, and the pressing plate is arranged in the annular cutter in a penetrating way; The two U-shaped plates are connected to two sides of the outer part of the upper sealing cover, an H-shaped support is connected in a sliding mode to the U-shaped plates, the H-shaped support is connected with a plurality of sliding rods, the sliding rods penetrate through the U-shaped plates, a first reset spring penetrates through the sliding rods, and a first guide roller is connected to the bottom end of the H-shaped support; The two second guide rollers are connected with the slider at the two ends, the slider is connected in the spout in a sliding way, the spout is connected with the inner wall of last sealed cowling, be equipped with second reset spring in the spout, second reset spring is used for driving the slider and upwards slides and reset, and two second guide rollers are located annular cutter's below both sides.
9. The chilled local chicken packaging device of claim 7, wherein the jacking assembly comprises: the second electric cylinder is connected with the outer bottom end of the lower sealing cover in a penetrating way, and the bottom end in the positioning groove is connected with a third sealing ring pad; The jacking plate is arranged in the positioning groove in a clearance fit manner, the jacking plate is in transmission connection with the second electric cylinder, the bottom end of the jacking plate is connected with the fourth sealing ring pad, after the second electric cylinder drives the jacking plate to ascend, the top end of the jacking plate is parallel to the top end of the lower sealing cover, and after the second electric cylinder drives the jacking plate to descend, the fourth sealing ring pad abuts against the third sealing ring pad.
10. The frozen fresh chicken packaging device of claim 7, wherein the positive and negative pressure applying assembly comprises: The butt joint pipe is connected to the support frame, the butt joint pipe is communicated with a first branch pipe, a second branch pipe and a plurality of third branch pipes, the third branch pipes are communicated with the air inlet and outlet pipes, the third branch pipes are connected with second electromagnetic valves, the first branch pipes are connected with third electromagnetic valves, and the second branch pipes are connected with fourth electromagnetic valves; The output end of the booster pump is communicated with the first branch pipe, the input end of the booster pump is communicated with a three-way pipe I, a fifth electromagnetic valve and a sixth electromagnetic valve are respectively connected to two branch pipes of the three-way pipe I, and the two branch pipes of the three-way pipe I are used for respectively connecting a CO 2 gas source and a fresh-keeping gas source; the input end of the vacuum pump is communicated with the second branch pipe, the output end of the vacuum pump is communicated with the three-way pipe II, the two branch pipes of the three-way pipe II are respectively connected with a seventh electromagnetic valve and an eighth electromagnetic valve, and any branch pipe of the three-way pipe II is used for connecting the air storage tank.

Description

Fresh frozen local chicken packing plant Technical Field The invention relates to the technical field of ice fresh packaging, in particular to an ice fresh local chicken packaging device. Background The frozen fresh local chicken is popular with consumers because of delicious meat, rich nutrition and better taste than frozen products. With the rapid development of fresh electronic commerce and cold chain logistics, the market demand of the frozen fresh local chicken is continuously growing. However, after the native chickens are slaughtered, the native chickens are extremely easy to have shortened shelf life and poor appearance and taste due to microorganism proliferation, fat oxidation and juice loss during the process of storage, transportation and sales. At present, the technical means for prolonging the shelf life of the frozen fresh poultry meat mainly comprise low-temperature fresh-keeping, air-conditioning packaging, vacuum packaging and the like. The low-temperature fresh-keeping is a basic means for prolonging the shelf life of the ice fresh poultry meat. The temperature of the poultry meat is controlled to be in an ice temperature fresh-keeping or super ice temperature fresh-keeping state of (-1 ℃ to-3 ℃) near the freezing point, so that the microbial growth and the enzyme activity can be obviously inhibited, and the shelf life can be prolonged. However, the shelf life can be prolonged to 7-10 days only by means of low-temperature fresh-keeping, and the packaging link is lack of optimization, so that the requirement of long-distance cold chain transportation is difficult to meet. The modified atmosphere packaging is used for inhibiting the growth of aerobic bacteria and putrefying bacteria by replacing air in the packaging and filling a certain proportion of CO 2、N2 and other gases. However, the traditional modified atmosphere packaging adopts a direct replacement mode of 'one-time evacuation-one-time inflation', the residual oxygen content in the packaging is higher, and the antibacterial effect is limited. In addition, after CO 2 gas in the modified atmosphere package permeates into the muscle tissue of the native chicken, the package collapses, and the appearance of the product is affected. The vacuum package can effectively isolate oxygen and inhibit the propagation of aerobic bacteria, however, for products with irregular shapes such as whole chickens, the packaging film is easy to cling to the surface of the products after vacuumizing, so that a collapse appearance is formed, juice exudation is aggravated due to extrusion, so that effusion in the package is caused, and the appearance and the taste of the products are affected. Therefore, how to achieve the purpose of prolonging the shelf life and simultaneously keeping good appearance and taste of the product is a problem to be solved in the technical field. Disclosure of Invention The invention aims to provide a packaging device for frozen fresh local chickens, so as to solve the problems. In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: the application provides a packaging device for frozen fresh local chickens, which comprises: The super-ice temperature pretreatment mechanism is used for immersing the slaughtered native chicken in the refrigerated salt solution so as to cool the chicken to a supercooled state without freezing, and opening muscle fiber gaps of the chicken through salt ions of the salt solution; the tail part of the super-ice temperature pretreatment mechanism is provided with an air drying component which is used for removing residual salt solution on the surface of the local chicken and in the abdominal cavity; The split-flow boxing mechanism is arranged at the tail end of the super-ice temperature pretreatment mechanism and is used for shunting the native chickens output by the super-ice temperature pretreatment mechanism and then loading the native chickens into a packaging box; The positive and negative pressure film sealing mechanism is arranged at the tail end of the split-flow boxing mechanism and is used for sealing the local chicken in the packaging box in the sealed cavity, vacuumizing the sealed cavity, filling CO 2 gas to form positive pressure, performing gas permeation on the local chicken, vacuumizing the sealed cavity again, injecting fresh-keeping gas to form micro positive pressure, and sealing the packaging box; the heat preservation and heat insulation shell is provided with an ultra-ice temperature pretreatment mechanism, an air drying assembly, a split-flow boxing mechanism and a positive and negative pressure film sealing mechanism which are all communicated with the heat preservation and heat insulation shell. Preferably, the super-ice thermal pretreatment mechanism includes: the ice table is provided with a liquid storage tank which is communicated with the heat preservation and insulation shell and is used for injecting salt solution; the hanging