Partial-freezing controlled atmosphere fresh-keeping equipment for fried food and fresh-keeping process thereof

Abstract

The invention discloses a deep-fried food partial freezing controlled atmosphere fresh-keeping device and a fresh-keeping process thereof, and relates to the field of food processing.The deep-fried food partial freezing controlled atmosphere fresh-keeping device comprises a device table and a controlled atmosphere packaging machine, a first lead screw set is arranged on the inner side of the device table, and the outer portion of the first lead screw set is in threaded connection with a first transfer table; a packaging lower mold is movably installed in the first transfer table by arranging multiple sets of supporting assemblies, the packaging lower mold is used for placing packaging boxes, a fresh-keeping cabinet is arranged on one side of the equipment table, and a material frame used for storing the packaging lower mold is installed at the top of the fresh-keeping cabinet. The supporting assembly is arranged so that the packaging lower mold of the modified atmosphere packaging machine can be movably installed in the first transfer table, then food in the packaging lower mold can be transferred to the first material frame mechanism from the first transfer table after being subjected to modified atmosphere packaging, and finally the first material frame mechanism uniformly immerses the food into the micro-lock fresh cabinet for partial freezing; food subjected to modified atmosphere packaging is automatically fed into the fresh-keeping locking cabinet, and the food fresh-keeping processing efficiency is improved.

Description

Technical Field

[0001] The invention relates to the field of food processing, in particular to a micro-freezing and atmosphere-controlled fresh-keeping device for fried food and a fresh-keeping process thereof. Background Art

[0002] In daily life and industrial production, food preservation, extending the shelf life of food and improving the value of food are all involved. The traditional way is to extend the shelf life of food by adding preservatives, but excessive intake of preservatives has a certain impact on human health. Therefore, with the advancement of science, physical methods have been optimized to preserve food. For example, food is preserved by gas. High concentrations of CO2 can hinder the reproduction of microorganisms such as aerobic bacteria and molds. N2 can reduce the oxygen content in the package to inhibit the reproduction of bacteria and molds. By mixing CO2, N2, and O2 in a certain proportion, it is suitable for the preservation of different foods. Some foods, such as meat, will also be preserved at low temperatures. Traditional low-temperature preservation refers to refrigeration above 0°C, frozen preservation refers to refrigeration below -18°C, and micro-freezing refers to a preservation technology in which the storage temperature is controlled at the freezing point of the organism and a temperature zone of 1 to 2°C below the freezing point. Low-temperature frozen preservation has also developed from the original air freezing method to the contact freezing method according to the different conduction media, that is, the food is packaged and then contact-frozen with low-temperature liquids, with a short freezing time and fast speed.

[0003] In order to ensure the freshness and quality of food, some food processing companies use gas to pack food for freshness preservation during food packaging, and also use low-temperature preservation for packaged food to ensure its freshness during storage or transportation. Usually, they use modified atmosphere packaging machines and micro-freezing and fresh-keeping machines. The modified atmosphere packaging machine packs the product in airtight packaging materials through a series of processes such as filling, sealing, and vacuuming. The packaged food is transferred to the lifting rack of the micro-freezing and fresh-keeping machine, which immerses the food in low-temperature liquid. The low-temperature liquid can be used to quickly freeze the packaged food, thereby improving the freshness and quality of food in multiple links such as packaging, storage and transportation.

[0004] In actual applications, modified atmosphere packaging machines and micro-freezing and fresh-keeping machines are usually two types of food preservation and processing equipment. The food is first packaged by the modified atmosphere packaging machine, and then transferred to the micro-freezing and fresh-keeping machine by the staff for micro-freezing. The transfer of food between different processes consumes a lot of labor costs, which is not conducive to improving the production efficiency of the enterprise. The low-temperature liquid of the micro-freezing and fresh-keeping machine has certain harm to the human body. Usually, the staff are required to wear special cold-proof gloves before they can put the food in the fresh-keeping machine. After the food is micro-frozen, the low-temperature liquid will remain on the surface of the food packaging. It takes a period of standing for most of the low-temperature liquid to drip, which also leads to a decrease in the efficiency of food micro-freezing. The purpose is to reduce excessive contact between staff and low-temperature liquid, reduce the waste caused by low-temperature liquid spilling on the ground, and avoid low-temperature liquid spilling on the ground and causing pollution to the environment. Summary of the invention

[0005] Based on this, the purpose of the present invention is to provide a micro-freezing atmosphere-controlled fresh-keeping device for fried food and a fresh-keeping process thereof, so as to solve the technical problems mentioned in the above background.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a kind of micro-freezing and controlled atmosphere preservation equipment for fried foods, comprising an equipment table and a controlled atmosphere packaging machine, a lifting and adjusting mechanism is arranged on the inner side of the equipment table, and the lifting and adjusting mechanism can adjust the height of the controlled atmosphere packaging machine, a first screw rod group is arranged on the inner side of the equipment table, and one end of the first screw rod group is connected to a first driving device, and the external thread of the first screw rod group is connected to a first transfer platform, and the interior of the first transfer platform is movably equipped with a packaging lower mold by setting a plurality of groups of supporting components, and the packaging lower mold is used to place packaging boxes, a fresh-keeping cabinet is arranged on one side of the equipment table, and two groups of lifting components are arranged on the side of the fresh-keeping cabinet, and the tops of the two groups of lifting components are connected to a beam, and a material rack for storing the packaging lower mold is installed at the bottom of the beam.

[0007] By adopting the above technical scheme, the supporting component is set so that the lower packaging mold of the modified atmosphere packaging machine can be movably installed inside the first transfer platform, and then the food in the lower packaging mold can be transferred by the first transfer platform to the front of the first material rack mechanism of the micro-freezing and fresh-keeping machine after modified atmosphere packaging. The first material rack mechanism can control the support component to open so that the lower packaging mold in the first transfer platform and the packaged food inside it fall into the first material rack mechanism. Finally, multiple packaged foods are uniformly immersed in the micro-fresh-keeping cabinet by the first material rack mechanism for micro-freezing, so that the food after modified atmosphere packaging is automatically loaded into the fresh-keeping cabinet, thereby improving the efficiency of food preservation processing.

[0008] The present invention is further configured such that a plurality of guide rods are arranged on the top of the equipment table, the modified atmosphere packaging machine comprises a cabinet, a packaging film feeding system and a packaging upper mold, and the cabinet and the plurality of guide rods are movably installed.

[0009] Preferably, by providing a plurality of sets of guide rods, the modified atmosphere packaging machine can slide along the guide rods, so that the modified atmosphere packaging machine is more stable when adjusting the height.

[0010] The present invention is further configured as follows: the lifting and adjusting mechanism includes a mounting plate mounted on the inner wall of the equipment platform, and the top of the mounting plate is rotatably connected to a first threaded rod and a second threaded rod, and the first threaded rod and the second threaded rod are transmission-connected by setting a first belt transmission assembly, the top of the mounting plate is rotatably connected to a first fixed rod, and the top of the first fixed rod is installed with a first transmission tooth by setting a one-way bearing, and the first fixed rod and the second threaded rod are transmission-connected by setting a second belt transmission assembly, the lifting and adjusting mechanism also includes a second fixed rod and a third fixed rod rotatably connected to the inner wall of the equipment platform, and the second fixed rod and the third fixed rod are transmission-connected by setting a spur gear set, and the second fixed rod and the first fixed rod are transmission-connected by setting a third belt transmission assembly, and the top of the third fixed rod is installed with a second transmission tooth by setting a one-way bearing.

[0011] Preferably, a lifting and lowering adjustment mechanism is provided, and the lifting and lowering adjustment mechanism is driven to work by the movement of the first transfer platform, so as to adjust the height of the modified atmosphere packaging machine.

[0012] The present invention is further configured such that the packaging lower mold includes a lower mold platform, and a plurality of packaging grooves are provided inside the lower mold platform, and movable pull-out handles are provided on both sides of the lower mold platform.

[0013] Preferably, a movably installable and detachable packaging lower mold is provided, so that the packaging lower mold can be easily loaded into the fresh-keeping cabinet, and the food stored in the packaging lower mold can be kept fresh at low temperature.

[0014] The present invention is further configured as follows: a second screw rod group is provided on the inner side of the equipment platform, and one end of the second screw rod group is connected to the second driving device, and the external thread of the second screw rod group is connected to the second moving platform, the sides of the first moving platform and the second moving platform are both provided with transmission racks, and the tops of the first moving platform and the second moving platform are both provided with grooves matching the movable pull-out handle, the transmission rack on one side of the first moving platform and the first transmission tooth are meshed with each other, and the transmission rack on one side of the second moving platform and the second transmission tooth are meshed with each other.

[0015] Preferably, by setting up a first transfer platform and a second transfer platform for alternating use, the modified atmosphere packaging machine can perform packaging and the fresh-keeping machine can load materials at the same time, thereby improving the efficiency of food preservation. When the first transfer platform drives the food to be packaged with modified atmosphere, the second transfer platform will drive the food that has been packaged with modified atmosphere to be loaded into the fresh-keeping cabinet for micro-freezing.

[0016] The present invention is further configured as follows: the supporting assembly includes a shell installed inside the first transfer platform, and the first metal rod and the second metal rod are rotatably connected inside the shell, and the first spur gear and the second spur gear are installed outside the first metal rod, a supporting slider is movably installed inside the shell, and a first rack is provided at the bottom of the supporting slider, and the first rack and the first spur gear are meshed with each other, a third spur gear is installed outside the second metal rod, and the third spur gear and the second spur gear are meshed with each other, a limiting column is provided inside the shell, and a spring is sleeved outside the limiting column, and a pushing rod is movably installed outside the limiting column, a second rack is provided on the side of the pushing rod, and the second rack and the third spur gear are meshed with each other.

[0017] Preferably, a support assembly is provided to support the packaged lower mold. When the support assembly is opened, the sealed lower mold can fall into the first rack mechanism, and then follow the first rack mechanism into the fresh-keeping cabinet to preserve the food at low temperature.

[0018] The present invention is further configured as follows: the material rack is a first material rack mechanism, and the first material rack mechanism includes a first cabinet door installed at the bottom of the crossbeam, and the bottom of the first cabinet door is rotatably connected to a first mounting rack, and both sides of the first mounting rack are rotatably connected to multiple groups of first material frames for storing the lower mold of the package, and the side of the first material frame is provided with multiple groups of first pushing blocks for pushing the pushing rod, and the side of the first material frame is connected to a first connecting rod, the side of the first mounting rack is provided with multiple groups of first arc grooves, and the first arc groove and the motion trajectory of the first connecting rod match, the side of the first mounting rack is rotatably connected to multiple groups of worm gears, and the side of the worm gear is provided with a first fixing block for supporting the first connecting rod, both sides of the first mounting rack are rotatably connected to the first transmission shaft, and the two groups of first transmission shafts are transmission-connected by setting a first sprocket transmission assembly, and a first wrench is provided at the bottom of the first sprocket transmission assembly, and multiple groups of worms are provided on the outside of the two groups of the first transmission shafts, and the worms and worm wheels are meshed with each other.

[0019] Preferably, a first material rack mechanism is provided for storing and engaging multiple groups of packaging lower molds, wherein multiple groups of food packaging boxes that have been sealed with controlled atmosphere are contained in the packaging lower molds, and then the first material rack mechanism can drive multiple groups of food into the fresh-keeping cabinet for micro-freezing and preservation, and the angle of the first material frame of the first material rack mechanism can be adjusted. When the food is micro-frozen and needs to be unloaded, the first material frame is controlled to be tilted. The tilting of the first material frame can accelerate the dripping of low-temperature liquid attached to the surface of the food packaging box, and also make it convenient for the staff to take the food.

[0020] The present invention is further configured that the material rack is a second material rack mechanism, and the second material rack mechanism includes a second cabinet door installed at the bottom of the crossbeam, and the bottom of the second cabinet door is rotatably connected to a second mounting rack, and both sides of the second mounting rack are rotatably connected to multiple groups of second material frames for storing the packaging lower mold, and the side of the second material frame is provided with multiple groups of second pushing blocks for pushing the pushing rod, and the side of the second material frame is connected to a second connecting rod, the side of the second mounting rack is provided with multiple groups of second arc grooves, and the second arc grooves and the motion trajectory of the second connecting rod match, both sides of the second mounting rack are rotatably connected to transmission screws, and the two groups of transmission screws are transmission-connected by setting a second sprocket transmission assembly, and A second wrench is provided at the bottom of the second sprocket transmission assembly, and limited slide rails are provided on both sides of the second mounting frame, and multiple groups of second fixed blocks for supporting the second connecting rod are movably installed on the sides of the limited slide rails, and the second fixed blocks are threadedly connected to the transmission screw, and the second transmission shaft is rotatably connected on both sides of the second mounting frame, and the two groups of second transmission shafts are transmission connected by setting a third sprocket transmission assembly, and a third wrench is provided at the bottom of the third sprocket transmission assembly, and multiple groups of mounting shells are provided on the side of the second mounting frame, and two groups of telescopic blocks for supporting the second connecting rod are movably installed inside the mounting shells, and the telescopic blocks and the second transmission shaft are transmission connected by setting a gear rack transmission assembly.

[0021] Preferably, a second material rack mechanism is provided for storing and engaging multiple groups of packaging lower molds. The second material rack mechanism supports the second material frame by means of a horizontally movable telescopic block. When the telescopic block is retracted, the second material frame will suddenly fall and tilt. The second material frame will shake and tilt slightly, so as to better remove the low-temperature liquid on the surface of the food packaging box.

[0022] A micro-freezing and controlled atmosphere preservation process for fried food, using a micro-freezing and controlled atmosphere preservation device for fried food as claimed in any one of claims 1 to 7, the process comprising the following steps:

[0023] S1: First, the staff puts the packaging box for packaging fried food into the packaging groove of the lower packaging mold, then clamps the lower packaging mold into the first transfer stage, drives the first transfer stage to the bottom of the modified atmosphere packaging machine, and uses the modified atmosphere packaging machine to inflate and package the fried food packaging box in the lower packaging mold;

[0024] S2: Next, the packaged fried food continues to move along the first transfer platform to the side of the first material rack mechanism, and the first material rack mechanism unloads the packaged lower mold in the first transfer platform, so that the packaged lower mold is stored in the first material frame of the first material rack mechanism;

[0025] S3: While the first transfer platform and the first material rack mechanism are loading materials, the second transfer platform also performs the same steps as the first transfer platform. After the lower molds in the first transfer platform and the second transfer platform are packaged by the modified atmosphere packaging machine, they are alternately loaded into the first material rack mechanism;

[0026] S4: Finally, after the first rack mechanism is filled with multiple packaged lower molds, the first rack mechanism is driven by the lifting assembly to descend and immerse into the fresh-keeping cabinet to freeze and preserve the fried food packaged in the packaging box. After the freezing is completed, the staff can unload the food.

[0027] In summary, the present invention mainly has the following beneficial effects:

[0028] 1. The present invention arranges a support component so that the lower packaging mold of the modified atmosphere packaging machine can be movably installed inside the first transfer platform, and then the food in the lower packaging mold can be transferred by the first transfer platform to the front of the first material rack mechanism of the micro-freezing and fresh-keeping machine after modified atmosphere packaging. The first material rack mechanism can control the support component to open so that the lower packaging mold in the first transfer platform and the packaged food inside it fall into the first material rack mechanism. Finally, multiple packaged foods are uniformly immersed in the micro-freezing cabinet by the first material rack mechanism for micro-freezing, so that the food packaged by the modified atmosphere is automatically loaded into the fresh-keeping cabinet, thereby improving the efficiency of food preservation processing.

[0029] 2. The present invention sets a first transfer platform and a second transfer platform for alternating use, so that the modified atmosphere packaging machine can perform packaging and the fresh-keeping machine can load materials at the same time, thereby improving the efficiency of food preservation. When the first transfer platform drives the food to be packaged with modified atmosphere, the second transfer platform will drive the food packaged with modified atmosphere to be slightly frozen and loaded into the fresh-keeping cabinet.

[0030] 3. The present invention provides a first material rack mechanism for storing and engaging multiple groups of packaging lower molds. Multiple groups of food packaging boxes that have been sealed with modified atmosphere are contained in the packaging lower molds. The first material rack mechanism can drive multiple groups of food into the fresh-keeping cabinet for micro-freezing and preservation. The angle of the first material frame of the first material rack mechanism can be adjusted. When the micro-freezing of food is completed and the food needs to be unloaded, the first material frame is controlled to be tilted. The tilting of the first material frame can accelerate the dripping of low-temperature liquid attached to the surface of the food packaging box, and also facilitate the staff to take the food.

[0031] 4. The present invention arranges a second material rack mechanism for storing and engaging multiple groups of packaging lower molds. The second material rack mechanism supports the second material frame by means of a horizontally movable telescopic block. When the telescopic block is retracted, the second material frame will suddenly fall and tilt. The second material frame will shake and tilt slightly, so as to better remove the low-temperature liquid on the surface of the food packaging box. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0033] Figure 2 It is a schematic diagram of the installation of the equipment platform, the first screw rod group and the second screw rod group of the present invention;

[0034] Figure 3 It is a schematic diagram of the connection between the first screw rod group, the second screw rod group, the first driving device and the second driving device of the present invention;

[0035] Figure 4 It is a schematic diagram of the installation of the modified atmosphere packaging machine and the lifting and lowering adjustment mechanism of the present invention;

[0036] Figure 5 It is a schematic diagram of the structure of the lifting and lowering adjustment mechanism of the present invention;

[0037] Figure 6 It is a structural schematic diagram of the modified atmosphere packaging machine of the present invention;

[0038] Figure 7 It is a schematic diagram of the installation of the first transfer platform, transmission rack, groove, support assembly and lower packaging mold of the present invention;

[0039] Figure 8 It is a schematic diagram of the packaging lower mold structure of the present invention;

[0040] Fig. 9 It is a schematic diagram of the structure of the first transfer platform of the present invention;

[0041] Fig.10 It is a schematic diagram of the installation of the first transfer platform and the support assembly of the present invention;

[0042] Fig.11 It is a schematic diagram of the support assembly structure of the present invention;

[0043] Fig.12 It is a schematic diagram of the installation of the housing and the supporting slider of the present invention;

[0044] Fig.13 It is a schematic diagram of the internal structure of the support assembly of the present invention;

[0045] Fig.14 It is a schematic diagram of the structure of the first material rack mechanism of the present invention;

[0046] Fig.15 This is a schematic diagram of the installation of the first material frame and the first push block of the present invention;

[0047] Fig.16 It is a schematic diagram of the installation of the first mounting frame and the first material frame of the present invention;

[0048] Fig.17 For the present invention Fig.14 A in the enlarged view;

[0049] Fig.18For the present invention Fig.16 The enlarged view of point B in the figure;

[0050] Fig.19 It is a schematic diagram of the structure of the second material rack mechanism of the present invention;

[0051] Fig. 20 For the present invention Fig.19 The enlarged view of point C in the figure;

[0052] Fig.21 It is a schematic diagram of the installation of the second mounting frame, the transmission screw and the second transmission shaft of the present invention;

[0053] Fig. 22 For the present invention Fig.21 The enlarged view of point D in the figure;

[0054] Fig.23 This is a schematic diagram of the installation of the installation shell and the telescopic block of the present invention;

[0055] Fig.24 It is a schematic diagram of the installation of the telescopic block, the rack and pinion transmission assembly and the second transmission shaft of the present invention.

[0056] Description of reference numerals:

[0057] 1. Equipment table; 2. Guide rod; 3. Modified atmosphere packaging machine; 301. Cabinet; 302. Packaging film feeding system; 303. Packaging upper mold; 4. Lifting adjustment mechanism; 401. Mounting plate; 402. First threaded rod; 403. Second threaded rod; 404. First belt transmission assembly; 405. First fixed rod; 406. Second belt transmission assembly; 407. First transmission tooth; 408. Second fixed rod; 409. Third fixed rod; 410. Spur gear set; 411. Third belt transmission assembly; 412. Second transmission tooth; 5. First screw rod set ; 6. first driving device; 7. first transfer platform; 8. transmission rack; 9. groove; 10. support assembly; 1001. housing; 1002. first metal rod; 1003. second metal rod; 1004. first spur gear; 1005. second spur gear; 1006. support slider; 1007. first rack; 1008. third spur gear; 1009. limit column; 1010. spring; 1011. push rod; 1012. second rack; 11. lower mold for packaging; 1101. lower mold platform; 1102. packaging groove; 1103. movable Pull handle; 12, second screw rod group; 13, second driving device; 14, second transfer platform; 15, fresh-keeping cabinet; 16, lifting assembly; 17, crossbeam; 18, first material rack mechanism; 1801, first cabinet door; 1802, first mounting frame; 1803, first material frame; 1804, first push block; 1805, first connecting rod; 1806, first arc groove; 1807, worm wheel; 1808, first fixing block; 1809, first transmission shaft; 1810, worm; 1811, first sprocket transmission assembly; 1812, first wrench; 19, The second material rack mechanism; 1901, the second cabinet door; 1902, the second mounting frame; 1903, the second material frame; 1904, the second pushing block; 1905, the second connecting rod; 1906, the second arc groove; 1907, the transmission screw; 1908, the second sprocket transmission assembly; 1909, the second wrench; 1910, the second fixed block; 1911, the limiting slide rail; 1912, the second transmission shaft; 1913, the third sprocket transmission assembly; 1914, the third wrench; 1915, the mounting shell; 1916, the telescopic block; 1917, the rack and pinion transmission assembly. DETAILED DESCRIPTION

[0058] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0059] The following describes an embodiment of the present invention based on its overall structure.

[0060] First embodiment:

[0061] See also Figure 1-18 A micro-freezing and atmosphere-controlled preservation device for fried food comprises an equipment platform 1 and an atmosphere-controlled packaging machine 3, wherein the atmosphere-controlled packaging machine 3 is used for vacuuming, filling and packaging food packaging boxes, and a lifting and adjusting mechanism 4 is arranged on the inner side of the equipment platform 1, and the lifting and adjusting mechanism 4 can adjust the height of the atmosphere-controlled packaging machine 3, and a first screw rod group 5 is arranged on the inner side of the equipment platform 1, and one end of the first screw rod group 5 is connected to a first driving device 6, and the outer thread of the first screw rod group 5 is connected to a first transfer platform 7, and the interior of the first transfer platform 7 is provided with a plurality of support components 10 A lower encapsulation mold 11 is movably installed, and the lower encapsulation mold 11 is used to place the packaging box. The lower encapsulation mold 11 and the modified atmosphere packaging machine 3 cooperate with each other to encapsulate the food packaging box. A fresh-keeping cabinet 15 is arranged on one side of the equipment table 1. The fresh-keeping cabinet 15 includes a refrigeration system that can maintain the temperature of the low-temperature liquid. Two groups of lifting components 16 are arranged on the side of the fresh-keeping cabinet 15, and the tops of the two groups of lifting components 16 are connected with a cross beam 17. A material rack for storing the lower encapsulation mold 11 is installed at the bottom of the cross beam 17, and the lifting component 16 is used to adjust the height of the material rack.

[0062] In the above embodiments, please refer to Figure 2 and Figure 6 A plurality of guide rods 2 are arranged on the top of the equipment platform 1, and the modified atmosphere packaging machine 3 includes a cabinet 301, a packaging film feeding system 302 and a packaging upper mold 303, and the cabinet 301 and the plurality of guide rods 2 are movably installed. By arranging the plurality of guide rods 2, the modified atmosphere packaging machine 3 can slide along the guide rods 2, so that the modified atmosphere packaging machine 3 is more stable when adjusting the height.

[0063] In the above embodiments, please refer to Figure 5The lifting and lowering adjustment mechanism 4 includes a mounting plate 401 mounted on the inner wall of the equipment platform 1, and the top of the mounting plate 401 is rotatably connected with a first threaded rod 402 and a second threaded rod 403, and the first threaded rod 402 and the second threaded rod 403 are connected by a first belt transmission assembly 404, the top of the mounting plate 401 is rotatably connected with a first fixed rod 405, and the top of the first fixed rod 405 is equipped with a first transmission tooth 407 by setting a one-way bearing, and the first fixed rod 405 and the second threaded rod 403 are connected by a second belt transmission assembly 406. The lowering adjustment mechanism 4 also includes a second fixed rod 408 and a third fixed rod 409 which are rotatably connected to the inner wall of the equipment platform 1, and the second fixed rod 408 and the third fixed rod 409 are connected by a spur gear set 410, and the second fixed rod 408 and the first fixed rod 405 are connected by a third belt transmission assembly 411. The top of the third fixed rod 409 is equipped with a second transmission tooth 412 by a one-way bearing. By setting the lifting and lowering adjustment mechanism 4, the lifting and lowering adjustment mechanism 4 is driven by the movement of the first transfer platform 7 to adjust the height of the modified atmosphere packaging machine 3.

[0064] In the above embodiments, please refer to Figure 8 The packaging lower mold 11 includes a lower mold platform 1101, and a plurality of packaging grooves 1102 are provided inside the lower mold platform 1101, and movable pull-out handles 1103 are provided on both sides of the lower mold platform 1101. By providing a movably installable and detachable packaging lower mold 11, the packaging lower mold 11 is convenient for loading into the fresh-keeping cabinet 15, and the food stored in the packaging lower mold 11 can be kept fresh at low temperature.

[0065] In the above embodiments, please refer to Figure 2 , Figure 7 , Fig. 9 and Fig.10 A second screw rod group 12 is provided on the inner side of the equipment platform 1, and one end of the second screw rod group 12 is connected to the second driving device 13, and the external thread of the second screw rod group 12 is connected to the second transfer platform 14, and the sides of the first transfer platform 7 and the second transfer platform 14 are provided with a transmission rack 8, and the tops of the first transfer platform 7 and the second transfer platform 14 are provided with a groove 9 matching the movable pull-out handle 1103, the transmission rack 8 on one side of the first transfer platform 7 and the first transmission tooth 407 are meshed with each other, and the transmission rack 8 on one side of the second transfer platform 14 and the second transmission tooth 412 are meshed with each other. By setting the first transfer platform 7 and the second transfer platform 14 for alternating use, the packaging of the modified atmosphere packaging machine 3 and the feeding of the fresh-keeping cabinet 15 can work at the same time, thereby improving the efficiency of food preservation. When the first transfer platform 7 drives the food to be packaged for modified atmosphere, the second transfer platform 14 will drive the food packaged by the modified atmosphere to be slightly frozen and fed to the fresh-keeping cabinet 15.

[0066] In the above embodiments, please refer to Figure 11-13 The supporting assembly 10 includes a shell 1001 installed inside the first transfer platform 7, and the first metal rod 1002 and the second metal rod 1003 are rotatably connected inside the shell 1001, and the first spur gear 1004 and the second spur gear 1005 are installed outside the first metal rod 1002, and a supporting slider 1006 is movably installed inside the shell 1001, and a first rack 1007 is arranged at the bottom of the supporting slider 1006, and the first rack 1007 and the first spur gear 1004 are meshed with each other, and a third spur gear 1008 is installed outside the second metal rod 1003, and the third spur gear 1008 and the second The spur gears 1005 are meshed with each other, a limiting column 1009 is arranged inside the shell 1001, and a spring 1010 is sleeved outside the limiting column 1009, and a push rod 1011 is movably installed outside the limiting column 1009, a second rack 1012 is arranged on the side of the push rod 1011, and the second rack 1012 and the third spur gear 1008 are meshed with each other, and a support assembly 10 is arranged to support the lower packaging mold 11. When the support assembly 10 is opened, the lower packaging mold 11 can fall into the first material rack mechanism 18, thereby following the first material rack mechanism 18 into the fresh-keeping cabinet 15 to keep the food fresh at low temperature.

[0067] In the above embodiments, please refer to Figure 14-18, the material rack is a first material rack mechanism 18, and the first material rack mechanism 18 includes a first cabinet door 1801 installed at the bottom of the beam 17, and the bottom of the first cabinet door 1801 is rotatably connected to a first mounting frame 1802, and the two sides of the first mounting frame 1802 are rotatably connected to multiple groups of first material frames 1803 for storing the lower mold 11 for packaging, and the side of the first material frame 1803 is provided with multiple groups of first pushing blocks 1804 for pushing the pushing rod 1011, and the side of the first material frame 1803 is connected to a first connecting rod 1805, and the side of the first mounting frame 1802 is provided with multiple groups of first arc grooves 1806, and the first arc grooves 1806 match the motion trajectory of the first connecting rod 1805, and the side of the first mounting frame 1802 is rotatably connected to multiple groups of worm gears 1807, and the side of the worm gear 1807 is provided with a first fixing block 1808 for supporting the first connecting rod 1805, and both sides of the first mounting frame 1802 are rotatable. A first transmission shaft 1809 is dynamically connected, and the two groups of first transmission shafts 1809 are connected by setting a first sprocket transmission assembly 1811, and a first wrench 1812 is set at the bottom of the first sprocket transmission assembly 1811. Multiple groups of worms 1810 are set on the outside of the two groups of first transmission shafts 1809, and the worms 1810 and the worm wheels 1807 are meshed with each other. The first material rack mechanism 18 is used to store and engage multiple groups of packaging lower molds 11. There are multiple groups of food packaging boxes that have been sealed by modified atmosphere in the packaging lower mold 11, and then the first material rack mechanism 18 can drive multiple groups of food into the fresh-keeping cabinet 15 for micro-freezing and preservation, and the angle of the first material frame 1803 of the first material rack mechanism 18 can be adjusted. When the food is micro-frozen and needs to be unloaded, the first material frame 1803 is controlled to be tilted. The tilting of the first material frame 1803 can accelerate the dripping of low-temperature liquid attached to the surface of the food packaging box, and it is also convenient for staff to take food.

[0068] A micro-freezing and controlled atmosphere preservation process for fried food, using a micro-freezing and controlled atmosphere preservation device for fried food according to any one of claims 1 to 7, the process comprising the following steps:

[0069] S1: First, the staff puts the packaging box for packaging fried food into the packaging groove 1102 of the lower packaging mold 11, then engages the lower packaging mold 11 into the first transfer stage 7, drives the first transfer stage 7 to the bottom of the modified atmosphere packaging machine 3, and uses the modified atmosphere packaging machine 3 to inflate and package the fried food packaging box in the lower packaging mold 11;

[0070] S2: Next, the packaged fried food continues to move along the first transfer platform 7 to the side of the first material rack mechanism 18, and the first material rack mechanism 18 unloads the packaged lower mold 11 in the first transfer platform 7, so that the packaged lower mold 11 is stored in the first material frame of the first material rack mechanism 18;

[0071] S3: While the first transfer platform 7 and the first material rack mechanism 18 are loading, the second transfer platform 14 also performs the same steps as the first transfer platform 7. After the lower molds 11 in the first transfer platform 7 and the second transfer platform 14 are packaged by the modified atmosphere packaging machine 3, they are alternately loaded into the first material rack mechanism 18;

[0072] S4: After the first rack mechanism 18 is filled with multiple lower packaging molds 11, the first rack mechanism 18 is driven by the lifting assembly 16 to descend and immerse into the fresh-keeping cabinet 15 to freeze and preserve the fried food packaged in the packaging box. After the freezing is completed, the staff can unload the food.

[0073] Second embodiment:

[0074] See also Figure 19-24The material rack is a second material rack mechanism 19, and the second material rack mechanism 19 includes a second cabinet door 1901 installed at the bottom of the crossbeam 17, and the bottom of the second cabinet door 1901 is rotatably connected to a second mounting frame 1902, and the two sides of the second mounting frame 1902 are rotatably connected to multiple groups of second material frames 1903 for storing the packaging lower mold 11, and the side of the second material frame 1903 is provided with multiple groups of second pushing blocks 1904 for pushing the pushing rod 1011, and the side of the second material frame 1903 is connected to a second connecting rod 1905, and the second mounting frame 19 The side of the second mounting frame 1902 is provided with multiple sets of second arc grooves 1906, and the second arc grooves 1906 match the motion trajectory of the second connecting rod 1905. Both sides of the second mounting frame 1902 are rotatably connected with transmission screws 1907, and the two sets of transmission screws 1907 are connected by a second sprocket transmission assembly 1908, and a second wrench 1909 is provided at the bottom of the second sprocket transmission assembly 1908. Both sides of the second mounting frame 1902 are provided with limited slide rails 1911, and the side of the limited slide rail 1911 is movably provided with multiple sets of support The second connecting rod 1905 has a second fixing block 1910, and the second fixing block 1910 is threadedly connected to the transmission screw 1907, both sides of the second mounting frame 1902 are rotatably connected with the second transmission shaft 1912, and the two sets of second transmission shafts 1912 are connected by the third sprocket transmission assembly 1913, and the bottom of the third sprocket transmission assembly 1913 is provided with a third wrench 1914, and the side of the second mounting frame 1902 is provided with multiple sets of mounting shells 1915, and the inside of the mounting shells 1915 is movably installed with two sets of second connecting rods 1905. The telescopic block 1916 of the rod 1905 is connected to the second transmission shaft 1912 by a gear rack transmission assembly 1917. A second material rack mechanism 19 is provided for storing and engaging multiple groups of packaging lower molds 11. The second material rack mechanism 19 supports the second material frame 1903 by means of the horizontally movable telescopic block 1916. When the telescopic block 1916 is retracted, the second material frame 1903 will suddenly fall and tilt. The second material frame 1903 will shake and tilt slightly, so as to better remove the low-temperature liquid on the surface of the food packaging box.

[0075] During the specific operation of the present invention, taking the preservation of fried meatballs as an example, the staff first places the packaging boxes in the packaging grooves 1102 of a group of lower packaging molds 11, and then places the fried meatballs into the packaging boxes according to the quantity. Finally, the staff pulls out the movable pulling handle 1103 of the lower packaging mold 11 and moves it to the first transfer platform 7. The lower packaging mold 11 will overlap the supporting sliders 1006 of the multiple groups of supporting assemblies 10, and at the same time, the movable pulling handle 1103 of the lower packaging mold 11 will be retracted.

[0076] Next, the first driving device 6 is started to drive the first screw group 5 to work, and the screw principle is used to make the first transfer platform 7 move toward the first material rack mechanism 18. When the first transfer platform 7 moves to the bottom of the modified atmosphere packaging machine 3, the packaging film feeding system 302 and the packaging upper mold 303 are started. The packaging upper mold 303 is used to descend and squeeze the packaging film of the packaging film feeding system 302 to cover the multiple packaging boxes in the packaging lower mold 11. The packaging upper mold 303 extracts the air in the packaging box and injects a mixed gas of CO2, N2 and O2. When the multiple packaging boxes in the packaging lower mold 11 are packaged through the modified atmosphere, they continue to follow the first transfer platform 7. The first platform 7 moves, and with the movement of the first transfer platform 7, the transmission rack 8 on the side of the first transfer platform 7 is meshed with the first transmission tooth 407, and then the first transmission tooth 407 drives the first fixed rod 405 to rotate, and the first fixed rod 405 drives the second threaded rod 403 to rotate through the second belt transmission assembly 406, and the second threaded rod 403 drives the first threaded rod 402 to rotate through the first belt transmission assembly 404. When the first threaded rod 402 and the second threaded rod 403 of the lifting and adjusting mechanism 4 rotate, the height of the modified atmosphere packaging machine 3 decreases, so that the height of the packaging film feeding system 302 can match the height of the second transfer platform 14.

[0077] When the first transfer platform 7 moves to one side of the first material rack mechanism 18, the lifting assembly 16 works to adjust the height of the crossbeam 17, thereby adjusting the height of the first material rack mechanism 18, so that the first transfer platform 7 moves to the top of the first material frame 1803 at the bottom of the first material rack mechanism 18, and the lifting assembly 16 is controlled to drive the first material frame 1803 to rise a short distance, so that the first push block 1804 on its side squeezes the push rod 1011 of the support assembly 10, and the push rod 1011 is on the limit column 1009. The outside of the housing 1001 slides and compresses the spring 1010, thereby pushing the second rack 1012 on the side of the rod 1011 to drive the third spur gear 1008 to rotate, and the third spur gear 1008 drives the second spur gear 1005 to rotate, so that the first spur gear 1004 rotates synchronously, and the first spur gear 1004 and the first rack 1007 are engaged, so that the supporting slider 1006 is retracted into the interior of the housing 1001, and then the package lower mold 11 movably installed inside the first transfer platform 7 will fall into the first material frame 1803.

[0078] At the same time, while the first transfer platform 7 and the first material rack mechanism 18 are loading materials, the staff loads the second transfer platform 14 in the above manner. When the second transfer platform 14 completes loading, it also moves to the bottom of the modified atmosphere packaging machine 3 to perform modified atmosphere packaging on the packaging box. At this time, the height of the modified atmosphere packaging machine 3 is lowered after adjusting the height in the above steps, so that the height of the packaging film feeding system 302 matches the height of the packaging lower mold 11 in the second transfer platform 14. After the packaging is completed, the second transfer platform 14 continues to drive the packaging lower mold 11 inside it to move, and then the transmission rack 8 on the side of the second transfer platform 14 is meshed with the second transmission tooth 412, and the second transmission tooth 412 drives the third fixed rod 409 to rotate, and the spur gear set 410 is used to make the second fixed rod 408 and the third fixed rod 409 rotate in opposite directions, and then the second fixed rod 408 drives the first fixed rod 409 through the third belt transmission assembly 411. The fixed rod 405 rotates, and according to the above steps, the first threaded rod 402 and the second threaded rod 403 rotate in opposite directions to raise the modified atmosphere packaging machine 3 as a whole, so as to facilitate the return and next work of the first transfer platform 7. When the second transfer platform 14 moves to one side of the first material rack mechanism 18 for loading, the first transfer platform 7 completes loading and returns. The first transmission tooth 407 and the second transmission tooth 412 are both installed with one-way bearings. In the process of the first transfer platform 7 and the second transfer platform 14 returning, the first transmission tooth 407 idles on the outside of the first fixed rod 405, and the second transmission tooth 412 idles on the outside of the third fixed rod 409. That is, when the first transfer platform 7 moves toward the first material rack mechanism 18, it will drive the modified atmosphere packaging machine 3 to drop in height, and when the second transfer platform 14 moves toward the first material rack mechanism 18, it will drive the modified atmosphere packaging machine 3 to rise in height, but the height of the modified atmosphere packaging machine 3 remains unchanged when both return.

[0079] Multiple first material frames 1803 are loaded from bottom to top, while the first transfer platform 7 and the second transfer platform 14 are running. After the first material frame 1803 on one side of the first mounting frame 1802 is loaded, the staff manually rotates the first mounting frame 1802 to allow the first material frame 1803 on the other side of the first mounting frame 1802 to be loaded. When all the first material frames 1803 of all the first material rack mechanisms 18 are loaded, the lifting assembly 16 is controlled to adjust the height of the first material rack mechanism 18 so that the first material rack mechanism 18 is completely immersed in the fresh-keeping cabinet 15, and the low-temperature liquid in the fresh-keeping cabinet 15 is used to slightly freeze the food for preservation.

[0080] After the food is preserved when immersed in the fresh-keeping cabinet 15, the lifting assembly 16 is started to adjust the height of the first material rack mechanism 18 so that the first material rack mechanism 18 is completely separated from the low-temperature liquid. The staff member turns the first wrench 1812 to drive the first sprocket transmission assembly 1811 to work, and then the two groups of first transmission shafts 1809 rotate, and multiple groups of worm gears 1810 rotate accordingly, and then multiple groups of worm wheels 1807 and the first fixed block 1808 rotate a certain angle, so that the first connecting rod 1805 on the side of the first material frame 1803 slides in the first arc groove 1806, that is, multiple groups of first material frames 1803 are tilted at a certain angle, and then the low-temperature liquid attached to the packaging box quickly drips into the fresh-keeping cabinet 15, and the staff member located on one side of the fresh-keeping cabinet 15 unloads the packaging lower mold 11 in the first material rack mechanism 18, and takes out the packaged and slightly frozen food in the packaging lower mold 11.

[0081] For the second embodiment, the first material rack mechanism 18 is replaced with the second material rack mechanism 19. The loading operation of the second material rack mechanism 19 is the same as that of the first material rack mechanism 18. However, when the second material rack mechanism 19 is unloading, the staff first rotates the third wrench 1914 to drive the third sprocket transmission assembly 1913 to work, and then the second transmission shaft 1912 rotates, and the gear rack transmission assembly 1917 is used to drive the telescopic block 1916 to retract into the interior of the mounting shell 1915. When the second connecting rod 1905 loses the support of the telescopic block 1916, the second material frame 1903 loses support and falls, tilting at a certain angle, and using vibration to make the low-temperature attached to the packaging box The liquid drips faster, and when the tilted second material frame 1903 needs to be restored to a horizontal level, the second wrench 1909 is rotated to drive the second sprocket transmission assembly 1908 to work, and then the two sets of transmission screws 1907 are rotated, so that the multiple sets of second fixed blocks 1910 slide and rise along the limiting slide rail 1911, so as to use the second fixed blocks 1910 to lift the multiple sets of second connecting rods 1905, so that the second material frame 1903 can be restored to a horizontal level, and then the third wrench 1914 is turned again to reset it, and then the multiple sets of telescopic blocks 1916 are extended from the installation shell 1915 to support the second connecting rod 1905, and finally the second wrench 1909 is turned to reset it.

[0082] Although an embodiment of the present invention has been shown and described, this specific embodiment is merely an explanation of the present invention and is not a limitation of the invention. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contributions as needed without departing from the principles and purpose of the present invention. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A micro-freezing and atmosphere-controlled fresh-keeping device for fried food, comprising an equipment station (1) and an atmosphere-controlled packaging machine (3), characterized in that: A lifting and adjusting mechanism (4) is arranged on the inner side of the equipment platform (1), and the lifting and adjusting mechanism (4) can adjust the height of the modified atmosphere packaging machine (3). A first screw rod group (5) is arranged on the inner side of the equipment platform (1), and one end of the first screw rod group (5) is connected to a first driving device (6), and the outer thread of the first screw rod group (5) is connected to a first transfer platform (7). The interior of the first transfer platform (7) is movably mounted with a packaging lower mold (11) by arranging multiple groups of support components (10), and the packaging lower mold (11) is used to place packaging boxes. A fresh-keeping cabinet (15) is arranged on one side of the equipment platform (1), and two groups of lifting components (16) are arranged on the side of the fresh-keeping cabinet (15), and the tops of the two groups of lifting components (16) are connected to a crossbeam (17), and the bottom of the crossbeam (17) is mounted with a material rack for storing the packaging lower mold (11).

2. The micro-freezing and atmosphere-controlled fresh-keeping equipment for fried food according to claim 1, characterized in that: A plurality of guide rods (2) are arranged on the top of the equipment platform (1); the modified atmosphere packaging machine (3) comprises a cabinet (301), a packaging film feeding system (302) and a packaging upper mold (303); and the cabinet (301) and the plurality of guide rods (2) are movably installed.

3. The micro-freezing and atmosphere-controlled fresh-keeping equipment for fried food according to claim 2, characterized in that: The lifting and adjusting mechanism (4) comprises a mounting plate (401) mounted on the inner wall of the equipment platform (1), and the top of the mounting plate (401) is rotatably connected to a first threaded rod (402) and a second threaded rod (403), and the first threaded rod (402) and the second threaded rod (403) are transmission-connected by arranging a first belt transmission assembly (404), the top of the mounting plate (401) is rotatably connected to a first fixed rod (405), and the top of the first fixed rod (405) is equipped with a first transmission tooth (407) by arranging a one-way bearing, and the first fixed rod (405) and the second threaded rod ( The lifting and adjusting mechanism (4) further comprises a second fixed rod (408) and a third fixed rod (409) which are rotatably connected to the inner wall of the equipment platform (1), and the second fixed rod (408) and the third fixed rod (409) are connected to each other by a spur gear set (410), and the second fixed rod (408) and the first fixed rod (405) are connected to each other by a third belt transmission assembly (411), and the top of the third fixed rod (409) is provided with a second transmission tooth (412) by providing a one-way bearing.

4. The micro-freezing and atmosphere-controlled fresh-keeping equipment for fried food according to claim 3, characterized in that: The packaging lower mold (11) comprises a lower mold platform (1101), and a plurality of packaging grooves (1102) are provided inside the lower mold platform (1101), and movable pull-out handles (1103) are provided on both sides of the lower mold platform (1101).

5. The micro-freezing and atmosphere-controlled fresh-keeping equipment for fried food according to claim 4, characterized in that: A second screw rod group (12) is arranged on the inner side of the equipment platform (1), and one end of the second screw rod group (12) is connected to a second driving device (13), and the external thread of the second screw rod group (12) is connected to a second transfer platform (14), and the sides of the first transfer platform (7) and the second transfer platform (14) are both provided with transmission racks (8), and the tops of the first transfer platform (7) and the second transfer platform (14) are both provided with grooves (9) matching the movable pull-out handle (1103), the transmission rack (8) on one side of the first transfer platform (7) and the first transmission tooth (407) are meshed with each other, and the transmission rack (8) on one side of the second transfer platform (14) and the second transmission tooth (412) are meshed with each other.

6. The micro-freezing and atmosphere-controlled fresh-keeping equipment for fried food according to claim 5, characterized in that: The support assembly (10) comprises a housing (1001) installed inside the first transfer platform (7), and the housing (1001) is rotatably connected with a first metal rod (1002) and a second metal rod (1003), and the first metal rod (1002) is externally installed with a first spur gear (1004) and a second spur gear (1005), and the housing (1001) is movably installed with a support slider (1006), and the bottom of the support slider (1006) is provided with a first rack (1007), and the first rack (1007) and the first spur gear (1004) are connected to each other. The second metal rod (1003) is provided with a third spur gear (1008) on the outside, and the third spur gear (1008) and the second spur gear (1005) are meshed with each other. A limiting column (1009) is provided inside the housing (1001), and a spring (1010) is sleeved on the outside of the limiting column (1009), and a push rod (1011) is movably installed on the outside of the limiting column (1009), and a second rack (1012) is provided on the side of the push rod (1011), and the second rack (1012) and the third spur gear (1008) are meshed with each other.

7. The micro-freezing and atmosphere-controlled fresh-keeping equipment for fried food according to claim 6, characterized in that: The material rack is a first material rack mechanism (18), and the first material rack mechanism (18) includes a first cabinet door (1801) installed at the bottom of the crossbeam (17), and the bottom of the first cabinet door (1801) is rotatably connected to a first mounting frame (1802), and the two sides of the first mounting frame (1802) are rotatably connected to multiple groups of first material frames (1803) for storing the packaging lower mold (11), and the side of the first material frame (1803) is provided with multiple groups of first pushing blocks (1804) for pushing the pushing rod (1011), and the side of the first material frame (1803) is connected to a first connecting rod (1805), and the side of the first mounting frame (1802) is provided with multiple groups of first arc grooves (1806), and the first arc grooves (1806) and The first mounting frame (1802) and the worm gear (1807) are rotatably connected to each other on the side of the first mounting frame (1802), and the side of the worm gear (1807) is provided with a first fixed block (1808) for supporting the first connecting rod (1805). The first mounting frame (1802) and the worm gear (1807) are rotatably connected to each other on both sides of the first mounting frame (1802), and the two groups of first transmission shafts (1809) are connected by a first sprocket transmission assembly (1811), and a first wrench (1812) is provided at the bottom of the first sprocket transmission assembly (1811). The outside of the two groups of the first transmission shafts (1809) is provided with multiple groups of worms (1810), and the worms (1810) and the worm wheels (1807) are meshed with each other.

8. The micro-freezing and atmosphere-controlled fresh-keeping equipment for fried food according to claim 7, characterized in that: The material rack is a second material rack mechanism (19), and the second material rack mechanism (19) includes a second cabinet door (1901) installed at the bottom of the beam (17), and the bottom of the second cabinet door (1901) is rotatably connected to a second mounting frame (1902), and the two sides of the second mounting frame (1902) are rotatably connected to multiple groups of second material frames (1903) for storing the packaging lower mold (11), and the side of the second material frame (1903) is provided with multiple groups of second pushing blocks (1904) for pushing the pushing rod (1011), and the side of the second material frame (1903) is connected to a second connecting rod (1905), and the side of the second mounting frame (1902) is provided with multiple groups of second arc grooves (1906), and the movement trajectory of the second arc groove (1906) and the second connecting rod (1905) matches.

9. The micro-freezing and atmosphere-controlled fresh-keeping equipment for fried food according to claim 8, characterized in that: Both sides of the second mounting frame (1902) are rotatably connected with transmission screws (1907), and the two sets of transmission screws (1907) are transmission-connected by setting a second sprocket transmission assembly (1908), and a second wrench (1909) is set at the bottom of the second sprocket transmission assembly (1908), and both sides of the second mounting frame (1902) are provided with limited slide rails (1911), and the side of the limited slide rail (1911) is movably installed with multiple sets of second fixed blocks (1910) for supporting the second connecting rod (1905), and the second fixed blocks (1910) and the transmission screw (1907) are threadedly connected, and the second mounting frame (1902) is provided with a plurality of second fixed blocks (1910) for supporting the second connecting rod (1905). 902), both sides of which are rotatably connected with a second transmission shaft (1912), and the two sets of second transmission shafts (1912) are transmission-connected by setting a third sprocket transmission assembly (1913), and a third wrench (1914) is set at the bottom of the third sprocket transmission assembly (1913), and a plurality of mounting shells (1915) are set on the side of the second mounting frame (1902), and two sets of telescopic blocks (1916) for supporting the second connecting rod (1905) are movably installed inside the mounting shell (1915), and the telescopic blocks (1916) and the second transmission shaft (1912) are transmission-connected by setting a gear rack transmission assembly (1917).

10. A micro-freezing and atmosphere-controlled preservation process for fried food, characterized in that The process of using the micro-freezing atmosphere-controlled fresh-keeping equipment for fried food according to any one of claims 1 to 7 comprises the following steps: S1: First, a staff member places a packaging box for packaging fried food into the packaging groove (1102) of the lower packaging mold (11), then engages the lower packaging mold (11) into the first transfer platform (7), drives the first transfer platform (7) to the bottom of the modified atmosphere packaging machine (3), and uses the modified atmosphere packaging machine (3) to inflate and package the fried food packaging box in the lower packaging mold (11); S2: Next, the packaged fried food continues to move along the first transfer platform (7) to the side of the first material rack mechanism (18), and the first material rack mechanism (18) unloads the packaged lower mold (11) in the first transfer platform (7), so that the packaged lower mold (11) is stored in the first material frame of the first material rack mechanism (18); S3: While the first transfer platform (7) and the first material rack mechanism (18) are loading materials, the second transfer platform (14) also performs the same steps as the first transfer platform (7). After being packaged by the modified atmosphere packaging machine (3), the lower packaging molds (11) in the first transfer platform (7) and the second transfer platform (14) are alternately loaded with materials for the first material rack mechanism (18); S4: Finally, after the first material rack mechanism (18) is filled with a plurality of lower packaging molds (11), the first material rack mechanism (18) is driven by the lifting assembly (16) to descend and immerse into the fresh-keeping cabinet (15), and the fried food packaged in the packaging box is frozen and preserved at low temperature. After the freezing is completed, the staff can unload the food.

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