Freeze-drying device for freeze-drying pet dairy products and processing method thereof

Abstract

The freeze-drying device comprises a freeze-drying box, a vacuum pump connector is formed in the outer wall of the freeze-drying box and sleeved with a one-way valve, strip-shaped plates are symmetrically arranged in the freeze-drying box, T-shaped blocks are arranged in the strip-shaped plates in a sliding mode, and a square frame is arranged between the T-shaped blocks; a plurality of placing mechanisms are arranged between the inner walls in the length direction of the square frame, a collecting mechanism is arranged in the freeze-drying box, and a freezing mechanism is arranged at the bottom of the inner wall of the freeze-drying box; through cooperation of a sliding net and a fixed net, raw materials are fixed, and through cooperation of a clamping block and a moving ring, an operator can conveniently place the raw materials into a placing groove; through cooperation of the freeze dryer and the exhaust grid, cold air is conveyed into the square frame, and raw materials in the circular ring cylinder are frozen; and through cooperation of the vent grooves and the exhaust holes, the raw materials in the containing grooves are frozen, cold air is conveyed to the raw materials in multiple directions, and freeze-drying manufacturing is accelerated.

Description

Technical Field

[0001] The present invention relates to the technical field of pet food processing, and in particular to a freeze drying device for freeze-dried pet dairy products and a processing method thereof. Background Art

[0002] Freeze-dried pet food refers to the process of rapidly freezing fresh meat, vegetables, fruits and other raw materials at low temperatures, and then undergoing a sublimation drying process to obtain highly nutritious pet food. This processing technology can retain the nutrients of the raw materials to the greatest extent, while removing harmful substances such as bacteria, thereby improving food safety.

[0003] The freeze-drying process usually includes raw material selection - pre-treatment - low-temperature pre-freezing - freeze-drying - finished product packaging; among them, low-temperature pre-freezing is to send the raw materials to a quick freezing warehouse after pre-treatment to freeze the raw materials for a long time, so that the moisture in the raw materials is frozen into ice, and then freeze-drying is carried out: the frozen raw materials are placed in a vacuum environment and heated to make the ice in the raw materials sublime, thereby achieving the purpose of removing moisture.

[0004] However, there are usually some problems in the daily use of ordinary freeze-dried pet dairy products. With the development of science and technology, technicians in related fields have also made a lot of optimizations on freeze-dried pet dairy products to solve some problems that different consumer groups care about. In order to make a more accurate comparison, a Chinese patent with publication number CN221666401U discloses a freeze-drying device for freeze-dried pet food, including a freeze dryer, a plurality of trays are rotatably arranged in the freeze dryer, and the plurality of trays include a lower support and a cover plate, a receiving net is movably sleeved in the lower support, a pressing net is fixedly arranged in the cover plate, and connecting shafts are fixedly installed on both sides of the lower support, and one end of the plurality of connecting shafts on the same side passes through the freeze dryer and is fixedly sleeved with a synchronous wheel, and a synchronous belt is sleeved on the outer wall of the synchronous wheel located at two adjacent positions above and below, and the synchronous wheel and the synchronous belt are meshed, and a sealing door is rotatably arranged at the front end of the freeze dryer, and a window is fixedly arranged on the sealing door, and the cover plate is rotatably connected to the upper end of the lower support. The above-mentioned prior art can effectively improve the food drying efficiency and is practical.

[0005] However, the above freeze drying device for freeze-drying pet food still has the following shortcomings in actual use:

[0006] 1. The freeze-drying device for freeze-dried pet food has a mesh tray structure, which makes the food drying more uniform and can effectively improve the efficiency. However, the tray structure can only make the food fully contact with the outside in the vertical direction, but the food cannot be fully contacted with the outside in the horizontal direction, thereby reducing the freeze-drying production efficiency.

[0007] 2. The freeze-drying device for freeze-dried pet food has multiple springs arranged in the lower support to buffer the force of the receiving net, so as to avoid excessive pressure when the net is pressed to press the food, which causes the food to be crushed and deformed. It is practical, but fixing the food by the receiving net and the pressing net will make it difficult to take the dried food out of the lower support, further reducing the freeze-drying production efficiency.

[0008] Therefore, based on the above-stated viewpoints, there is still room for improvement in the existing freeze-drying devices and processing methods for freeze-dried pet dairy products. Summary of the invention

[0009] In order to solve the above problems, the present invention provides a freeze-drying device for freeze-dried pet dairy products, including a freeze-drying box, a vacuum pump interface is provided on the outer wall of the freeze-drying box, a one-way valve is sleeved on the vacuum pump interface, strip plates are symmetrically arranged in the freeze-drying box, T-blocks are slidably arranged in the strip plates, square frames are arranged between the T-blocks, and multiple placement mechanisms are arranged between the inner walls along the length direction of the square frames, a collection mechanism is arranged in the freeze-drying box, and a freezing mechanism is arranged at the bottom of the inner wall of the freeze-drying box.

[0010] Preferably, the placement mechanism includes a plurality of hollow tubes rotatably arranged between the inner walls of the square frame, an annular cylinder is sleeved on the hollow tubes, a plurality of placement grooves are evenly opened along the circumference of the annular cylinder, a fixed net covering the placement grooves is arranged on the annular cylinder, and a sliding net located below the fixed net is slidably arranged on the annular cylinder.

[0011] Preferably, the placement mechanism also includes a sliding block arranged on the top of the sliding net and slidably arranged on the fixed net, a moving ring passing through the sliding block is arranged on the annular cylinder, a fixed block is arranged on the top of the fixed net on a side away from the sliding block, a spring 1 is arranged between the fixed block and the sliding block, a push rod is rotatably arranged on the side of the sliding block away from the spring 1, and a clamping block cooperating with the moving ring is arranged on the side of the push rod away from the sliding block.

[0012] Preferably, the freezing mechanism includes an isolation box arranged at the bottom of the inner wall of the freeze drying chamber, a freeze dryer located in the isolation box is arranged at the bottom of the inner wall of the freeze drying chamber, an output pipe is arranged at the top of the freeze dryer and passes through the isolation box, a U-shaped connecting pipe is arranged at the top of the output pipe, and the U-shaped connecting pipe and the T-shaped block are connected by an input telescopic pipe.

[0013] Preferably, the refrigeration mechanism also includes a T-shaped slot opened in the T-shaped block, an exhaust grille is provided on the side of the T-shaped slot close to the annular cylinder, a ventilation groove connected to the T-shaped slot is opened on the front side of the square frame, an air inlet hole for connecting the hollow tube and the ventilation groove is opened on the inner wall of the square frame, and a plurality of exhaust holes are opened on the hollow tube and the annular cylinder.

[0014] Preferably, the collection mechanism includes a storage box slidably arranged at the bottom of the isolation box, a Z-shaped rod is symmetrically arranged between the top of the storage box and one of the T-shaped blocks, a moving block is slidably arranged at the bottom of the other T-shaped block, a telescopic rod is hingedly arranged between the moving block and the T-shaped block connected to the Z-shaped rod, and a synchronization unit is arranged between the circular cylinders.

[0015] Preferably, the synchronization unit includes a synchronization plate slidably arranged between the moving rings, a threaded rod is arranged on the front side of the square frame through threaded rotation, the threaded rod is connected to one of the synchronization plates through an L-shaped rod, and a stopper is arranged on the top of the uppermost T-shaped block.

[0016] Preferably, a rotating mechanism is arranged inside the freeze drying box and at the rear side of the square frame, the rotating mechanism includes a driving motor arranged on the outer wall of the freeze drying box through a motor housing, a reciprocating screw located inside the freeze drying box is arranged on the output shaft of the driving motor, spur gears are arranged on the rear side of the hollow tube passing through the square frame, a square plate is arranged at the rear of the square frame, a rack matched with the spur gear is arranged on the square plate, an L-shaped block matched with the reciprocating screw is sleeved on the reciprocating screw, and the L-shaped block is connected to one of the square plates.

[0017] Preferably, a water storage tank located in the isolation box is provided at the bottom of the inner wall of the freeze drying box, and a water collecting funnel is provided between the water storage tank and the top of the isolation box.

[0018] In addition, the present invention also provides a freeze-drying processing method for freeze-dried pet dairy products, comprising the following steps:

[0019] S1. Raw material loading: The sliding net is moved by pushing the push rod, and the movement of the sliding net is limited by the cooperation of the clamping block and the moving ring. Then the raw material is placed in the placement groove, and the sliding net is reset by the clamping block and the spring.

[0020] S2. Freezing of raw materials: The cold air of the freeze dryer is transmitted to the T-shaped slot and blown to the annular cylinder from the exhaust grille. The cold air is also transmitted to the placement slot to freeze the raw materials. At the same time, the driving motor drives the annular cylinder to rotate together to accelerate the freezing of the raw materials.

[0021] S3, raw material collection: by pulling the storage box, the square frame is moved out of the freeze-drying box, and then the sliding net on the same horizontal plane is moved backward by rotating the threaded rod, so that the raw materials in the placement slot fall into the storage box.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. The present invention fixes the raw materials in the placement groove and increases the contact area between the raw materials and the outside world through the cooperation of the sliding net and the fixed net; and also through the cooperation of the clamping block and the moving ring, the clamping block is fixed by the moving ring, thereby facilitating the operator to place the raw materials in the placement groove.

[0024] 2. The present invention transmits cold air to the square frame through the cooperation of the freeze dryer and the exhaust grille to freeze the raw materials in the circular cylinder; and also freezes the raw materials in the placement groove through the cooperation of the ventilation groove and the exhaust hole, thereby transmitting cold air to multiple directions of the raw materials and accelerating the freeze-drying production.

[0025] 3. The present invention can quickly collect the prepared freeze-dried food through the cooperation of the threaded rod and the storage box, thereby reducing the operating steps of the operator and improving the production efficiency of the freeze-dried food; the driving motor can also drive the annular cylinder to rotate, so that the raw materials in the annular cylinder can be made into freeze-dried food more evenly, further improving the production efficiency of the freeze-dried food. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0027] Figure 1 It is a structural schematic diagram of the present invention.

[0028] Figure 2 It is a structural schematic diagram of the placement mechanism of the present invention.

[0029] Figure 3 The present invention Figure 2 A magnified view of the structure at A.

[0030] Figure 4 The present invention Figure 2 Enlarged view of the structure at B.

[0031] Figure 5 The structure of the refrigeration mechanism of the present invention is shown in FIG. Figure 1 .

[0032] Figure 6 The structure of the refrigeration mechanism of the present invention is shown in FIG. Figure 2 .

[0033] Figure 7 It is a structural schematic diagram of the collecting mechanism of the present invention.

[0034] Figure 8 It is a structural schematic diagram of the synchronization unit of the present invention.

[0035] Fig. 9 It is a structural schematic diagram of the rotating mechanism of the present invention.

[0036] Fig.10 It is a structural schematic diagram of the water collecting funnel and the water storage tank of the present invention.

[0037] In the figure, 1, freeze drying box; 10, airtight door; 11, handle; 12, vacuum pump interface; 13, one-way valve; 14, strip plate; 15, T-shaped block; 16, limit groove; 17, square frame; 2, placement mechanism; 3, collection mechanism; 4, freezing mechanism; 20, hollow tube; 21, annular cylinder; 22, placement groove; 23, fixed net; 24, sliding net; 240, sliding block; 241, moving ring; 242, square through groove; 25, fixed block; 26, spring 1; 27, push rod; 28, block; 40, isolation box; 41, freeze dryer; 42, output pipe; 4 3. U-shaped connecting pipe; 44. Input telescopic pipe; 45. T-shaped slot; 46. Exhaust grille; 47. Ventilation slot; 48. Air inlet; 49. Exhaust hole; 30. Storage box; 31. Z-shaped rod; 32. Moving block; 33. Moving slot; 34. Telescopic rod; 35. Synchronous unit; 350. Synchronous plate; 351. Threaded rod; 352. L-shaped rod; 353. Block; 5. Rotating mechanism; 50. Driving motor; 51. Reciprocating screw rod; 52. Spur gear; 53. Square plate; 54. Rack; 55. Connecting plate; 56. L-shaped block; 6. Water storage tank; 60. Water collecting funnel. DETAILED DESCRIPTION

[0038] The following is combined with Figures 1 to 10 While embodiments of the invention have been described in detail, the invention can be implemented in many different ways as defined and covered by the claims.

[0039] The embodiment of the present application discloses a freeze-drying device for freeze-dried pet dairy products, which explains that the present application is mainly used in the process of freeze-drying pet food. In terms of technical effect, the raw materials can be fully exposed to cold air, thereby accelerating the efficiency of freezing water in the raw materials, and then accelerating the freeze-drying production efficiency. In particular, the raw materials can be rotated during the freezing process, so that the raw materials are further fully exposed to cold air, thereby accelerating the freeze-drying production process. Furthermore, the present application can also collect the freeze-dried food after the freeze-drying is completed, thereby reducing the freeze-drying production steps and accelerating the freeze-drying production.

[0040] Embodiment 1:

[0041] Reference Figure 1As shown, a freeze-drying device for freeze-dried pet dairy products comprises a freeze-drying box 1, a sealed door 10, a handle 11, a vacuum pump interface 12, a one-way valve 13, a strip plate 14, a T-block 15, a limiting groove 16, a square frame 17, a placement mechanism 2, a collection mechanism 3 and a freezing mechanism 4. The front side of the freeze-drying box 1 is symmetrically provided with a sealed door 10 through a hinge, and the freeze-drying box 1 can be placed in a sealed state through the sealed door 10; the front side of the sealed door 10 is symmetrically provided with a handle 11, and the handle 11 is used to conveniently open and close the sealed door 10; a vacuum pump interface 12 is provided on the outer wall of the freeze-drying box 1, and the vacuum pump interface 12 is used to externally connect a vacuum pump, and the vacuum pump can evacuate the freeze-drying box 1 through the vacuum pump interface 12; a one-way valve 13 is sleeved on the vacuum pump interface 12, and the one-way valve 13 is used to prevent the freeze-drying box 1 from communicating with the outside when the vacuum pump interface 12 is not connected to an external vacuum pump; the freeze-drying box 1 is symmetrically provided with strips. Plate 14, a T-shaped block 15 is slidably arranged inside the strip plate 14, and the T-shaped block 15 can slide under the restriction of the strip plate 14; a limiting groove 16 for the T-shaped block 15 to slide is opened on the strip plate 14, and a square frame 17 is arranged between the T-shaped blocks 15, and when the T-shaped block 15 moves, it can drive the square frame 17 to move together; a plurality of placement mechanisms 2 are arranged between the inner walls along the length direction of the square frame 17, and the placement mechanism 2 is used to store and fix the raw materials and can also increase the contact area between the raw materials and the outside world, thereby accelerating the production efficiency of freeze-drying; a collection mechanism 3 is arranged in the freeze-drying box 1, and the collection mechanism 3 is used to quickly collect the prepared freeze-dried food, thereby reducing the operating steps of the operator and improving the production efficiency of freeze-drying; a freezing mechanism 4 is arranged at the bottom of the inner wall of the freeze-drying box 1, and the freezing mechanism 4 freezes the water in the raw material into ice and transmits the cold air to multiple directions of freeze-drying, further accelerating the production of freeze-drying.

[0042] During the specific implementation process, the operator opens the sealed door 10 through the handle 11, and then pulls the square frame 17. When the square frame 17 moves, it can drive the T-shaped block 15 to move together under the restriction of the strip plate 14. When the square frame 17 moves, it can move the placement mechanism 2 out of the freeze drying box 1, so that the operator can place the raw materials in the placement mechanism 2, and store and fix the raw materials through the placement mechanism 2. Then, the sealed door 10 is closed through the handle 11 to make the freeze drying box 1 in a closed state, and then the cold air is transmitted to multiple directions of the freeze drying through the freezing mechanism 4 so that the moisture in the raw material is frozen into ice, thereby accelerating the freeze drying production. When the moisture in the raw material is frozen into ice, the freeze drying box 1 is evacuated by an external vacuum pump through the vacuum pump interface 12, so that the ice in the raw material sublimates and the moisture in the raw material is removed. Finally, the prepared freeze-dried food is quickly collected through the collecting mechanism 3, thereby reducing the operating steps of the operator and improving the freeze drying production efficiency.

[0043] Reference Figure 2As shown, that is, the placement mechanism 2 in the present application; specifically, the placement mechanism 2 includes a hollow tube 20, an annular cylinder 21, a placement groove 22, a fixed net 23 and a sliding net 24, a plurality of hollow tubes 20 are rotatably arranged between the inner walls of the square frame 17, and the hollow tubes 20 can rotate under the restriction of the square frame 17; an annular cylinder 21 is sleeved on the hollow tube 20, and when the hollow tube 20 rotates, it can drive the annular cylinder 21 to rotate together; a plurality of placement grooves 22 are evenly opened along the circumference of the annular cylinder 21, and the placement groove 22 is used to place and store raw materials; a fixed net 23 covering the placement groove 22 is arranged on the annular cylinder 21, and the fixed net 23 is used to fix the raw materials in the placement groove 22 and can also increase the contact area between the raw materials and the outside world; a sliding net 24 located below the fixed net 23 is slidably arranged on the annular cylinder 21, and the sliding net 24 can slide along the axial direction of the annular cylinder 21, and the raw materials can be placed in the placement groove 22 through the sliding net 24, and the sliding net 24 can also increase the contact area between the raw materials and the outside world.

[0044] In the specific implementation process, the sliding net 24 is pushed to make the sliding net 24 slide under the restriction of the annular cylinder 21, and then the operator places the raw material into the placement groove 22, and then resets the sliding net 24. The sliding net 24 and the fixed net 23 cooperate to fix the raw material in the placement groove 22 and increase the contact area between the raw material and the outside world.

[0045] Reference Figure 2 , Figure 3 and Figure 4 As shown, that is, the placement mechanism 2 in the present application; specifically, the placement mechanism 2 also includes a sliding block 240, a moving ring 241, a square through groove 242, a fixed block 25, a spring 26, a push rod 27 and a clamping block 28. The top of the sliding net 24 is provided with a sliding block 240 slidably arranged on the fixed net 23, and when the sliding block 240 moves, it can drive the sliding net 24 to move together; a moving ring 241 penetrating the sliding block 240 is provided on the annular cylinder 21, and when the moving ring 241 moves, it can drive the sliding block 240 on the same annular cylinder 21 to move together; a square through groove 242 for the moving ring 241 to penetrate is opened on the sliding block 240, and a fixed net 23 is provided on the top of the side away from the sliding block 240 A spring 26 is arranged between the fixed block 25 and the sliding block 240, and the spring 26 can be arranged to provide a forward thrust for the sliding block 240; a push rod 27 is arranged on the side of the sliding block 240 away from the spring 26, and the push rod 27 can rotate under the restriction of the sliding block 240, and when the push rod 27 moves, it can drive the sliding block 240 to move together; a clamping block 28 cooperating with the moving ring 241 is arranged on the side of the push rod 27 away from the sliding block 240, and when the clamping block 28 rotates, it can drive the push rod 27 to rotate together, and when the clamping block 28 moves, it can drive the push rod 27 to move together. When the clamping block 28 conflicts with the moving ring 241, the clamping block 28 is fixed by the moving ring 241 by rotating the clamping block 28.

[0046] During the specific implementation process, in order to facilitate the operator to place the raw materials into the placement groove 22, the operator pushes the block 28, and when the block 28 moves, it can drive the push rod 27 to move together, and when the block 28 moves, it can drive the sliding block 240 to move together, and when the sliding block 240 moves, it can drive the sliding net 24 to move together. When the block 28 conflicts with the moving ring 241, the block 28 is fixed by the moving ring 241 by rotating the block 28, so that the operator can place the raw materials into the placement groove 22. When the placement of the raw materials is completed, the block 28 is rotated again to release the fixation of the block 28 and the moving ring 241, and the sliding block 240 drives the sliding net 24 to reset under the action of the spring 26, so as to fix the raw materials in the placement groove 22.

[0047] Reference Figure 5 As shown, the freezing mechanism 4 in the present application; specifically, the freezing mechanism 4 includes an isolation box 40, a freeze dryer 41, an output pipe 42, a U-shaped connecting pipe 43 and an input telescopic pipe 44. The isolation box 40 is arranged at the bottom of the inner wall of the freeze drying box 1, and the isolation box 40 is used to reduce the area that needs to be vacuumed in the freeze drying box 1; the freeze dryer 41 located in the isolation box 40 is arranged at the bottom of the inner wall of the freeze drying box 1, and the freeze dryer 41 is used to generate cold air; the output pipe 42 is arranged on the top of the freeze dryer 41 through the isolation box 40, and the cold air generated by the freeze dryer 41 can be transmitted to the output pipe 42; the U-shaped connecting pipe 43 is arranged on the top of the output pipe 42, and the cold air in the output pipe 42 can be transmitted to the U-shaped connecting pipe 43; the U-shaped connecting pipe 43 and the T-shaped block 15 are connected by the input telescopic pipe 44, and the cold air in the U-shaped connecting pipe 43 can be transmitted to the T-shaped block 15 through the input telescopic pipe 44.

[0048] In the specific implementation process, after the placement of the raw materials is completed, the freeze dryer 41 is started to generate cold air. The generated cold air can be transmitted to the output pipe 42, and the cold air in the output pipe 42 can be transmitted to the U-shaped connecting pipe 43. The cold air in the U-shaped connecting pipe 43 can be transmitted to the T-shaped block 15 through the input telescopic tube 44, and the T-shaped block 15 can stretch and contract the input telescopic tube 44 when it moves.

[0049] Reference Figure 6As shown, the refrigeration mechanism 4 in the present application; specifically, the refrigeration mechanism 4 also includes a T-shaped slot 45, an exhaust grille 46, a ventilation slot 47, an air inlet 48 and an exhaust hole 49. A T-shaped slot 45 is provided in the T-shaped block 15, and the cold air in the U-shaped connecting pipe 43 can be transmitted to the T-shaped slot 45 through the input telescopic pipe 44; an exhaust grille 46 is provided on one side of the T-shaped slot 45 close to the annular cylinder 21, and the cold air in the T-shaped slot 45 is transmitted to the square frame 17 through the exhaust grille 46; the front side of the square frame 17 A ventilation groove 47 connected to the T-shaped groove 45 is provided, and the cold air in the T-shaped groove 45 can also be transmitted to the ventilation groove 47; an air inlet hole 48 for connecting the hollow tube 20 and the ventilation groove 47 is provided on the inner wall of the square frame 17, and the cold air in the ventilation groove 47 can be transmitted to the hollow tube 20 through the air inlet hole 48; a plurality of exhaust holes 49 are provided on the hollow tube 20 and the annular cylinder 21, and the cold air in the hollow tube 20 can be transmitted to the placement groove 22 through the exhaust holes 49, so as to freeze the raw materials in the placement groove 22.

[0050] During the specific implementation process, the cold air in the U-shaped connecting tube 43 can be transmitted to the T-slot 45 through the input telescopic tube 44, and the cold air in the T-slot 45 is transmitted to the square frame 17 through the exhaust grille 46 to freeze the raw materials in the annular cylinder 21. The cold air in the T-slot 45 can also be transmitted to the ventilation groove 47, and the cold air in the ventilation groove 47 can be transmitted to the hollow tube 20 through the air inlet 48, and the cold air in the hollow tube 20 can be transmitted to the placement groove 22 through the exhaust hole 49 to freeze the raw materials in the placement groove 22, thereby realizing the transmission of cold air to multiple directions of the raw materials, thereby accelerating the freeze-drying production.

[0051] Reference Figure 7As shown, the collecting mechanism 3 in the present application; specifically, the collecting mechanism 3 includes a storage box 30, a Z-shaped rod 31, a moving block 32, a moving groove 33, a telescopic rod 34 and a synchronization unit 35. The storage box 30 is slidably arranged at the bottom of the isolation box 40. The storage box 30 can slide under the restriction of the isolation box 40. The storage box 30 is used to store the prepared freeze-dried food; a Z-shaped rod 31 is symmetrically arranged between the top of the storage box 30 and one of the T-shaped blocks 15. When the storage box 30 moves, it can drive the Z-shaped rod 31 to move together. When the Z-shaped rod 31 moves, it can drive one of the T-shaped blocks 15 to move together; the moving block 32 is slidably arranged at the bottom of the other T-shaped block 15 The moving block 32 can slide under the restriction of the T-shaped block 15; a moving groove 33 for the moving block 32 to move is opened at the bottom of the T-shaped block 15, and a telescopic rod 34 is hingedly arranged between the moving block 32 and the T-shaped block 15 connected to the Z-shaped rod 31. When the T-shaped block 15 connected to the Z-shaped rod 31 moves, it can drive the telescopic rod 34 to move together, and when the telescopic rod 34 moves, it can drive the moving block 32 to move together, and when the moving block 32 moves, it can drive another T-shaped block 15 to move together; a synchronization unit 35 is arranged between the annular cylinders 21, and the synchronization unit 35 is used to drive multiple sliding nets 24 to move at the same time, so that the freeze-dried food prepared in the placement groove 22 can be smoothly removed.

[0052] It should be noted that the length of the moving groove 33 is half the length of the T-shaped block 15, so that the square frame 17 can be moved out crosswise, which is convenient for the operator to operate.

[0053] During the specific implementation process, after the freeze-dried food is made, the operator pulls the storage box 30 to move the storage box 30 out of the isolation box 40. When the storage box 30 moves, it can drive the Z-shaped rod 31 to move together. When the Z-shaped rod 31 moves, it can drive one of the T-shaped blocks 15 to move together. When the T-shaped block 15 connected to the Z-shaped rod 31 moves, it can drive the telescopic rod 34 to move together. Through the cooperation of the telescopic rod 34 and the strip plate 14, the T-shaped block 15 and the square frame 17 can be tilted downward when moving forward to the limit distance. When the square frame 17 tilts downward, it can drive the annular cylinder 21 to tilt downward, so that the freeze-dried food in the placement groove 22 is concentrated under the sliding net 24, which is convenient for the freeze-dried food to be moved out of the placement groove 22 and fall into the storage box 30; when the telescopic rod 34 moves, it can drive the moving block 32 to move together, and when the moving block 32 moves, it can drive another T-shaped block 15 to move together.

[0054] Reference Figure 7 and Figure 8As shown, it is the synchronization unit 35 in the present application; specifically, the synchronization unit 35 includes a synchronization plate 350, a threaded rod 351, an L-shaped rod 352 and a stopper 353. The synchronization plate 350 is slidably arranged between the moving rings 241, and when the synchronization plate 350 moves, it can drive the moving ring 241 to move together; a threaded rod 351 is arranged on the front side of the square frame 17 through threaded rotation, and the threaded rod 351 can rotate under the restriction of the square frame 17; the threaded rod 351 is connected to one of the synchronization plates 350 through an L-shaped rod 352, and when the threaded rod 351 moves, it can drive the L-shaped rod 352 to move together, and when the L-shaped rod 352 moves, it can drive the synchronization plate 350 to move together; a stopper 353 is arranged on the top of the uppermost T-shaped block 15, and the stopper 353 is used for the uppermost T-shaped block 15 and the square frame 17 to tilt downward when they move forward to the limit distance.

[0055] During the specific implementation process, the operator rotates the threaded rod 351, and when the threaded rod 351 moves, it can drive the L-shaped rod 352 to move together, and when the L-shaped rod 352 moves, it can drive the synchronous plate 350 to move together, and when the synchronous plate 350 moves, it can drive the moving ring 241 to move together, and when the moving ring 241 moves, it can drive the sliding block 240 connected thereto to move together, and when the sliding block 240 moves, it can drive the sliding net 24 to move together, thereby realizing the smooth removal of the freeze-dried food prepared in the placement slot 22.

[0056] Embodiment 2:

[0057] Reference Fig. 9As shown, on the basis of the first embodiment, in order to make the raw materials in the annular cylinder 21 more uniformly freeze-dried and further improve the freeze-drying production efficiency, in the specific embodiment of the present scheme, a rotating mechanism 5 is arranged in the freeze-drying box 1 and at the rear side of the square frame 17; specifically, the rotating mechanism 5 includes a driving motor 50, a reciprocating screw 51, a spur gear 52, a square plate 53, a rack 54, a connecting plate 55 and an L-shaped block 56, and the outer wall of the freeze-drying box 1 is provided with a driving motor 50 through the motor housing, and the output shaft of the driving motor 50 is provided with a reciprocating screw 51 located in the freeze-drying box 1, and when the driving motor 50 rotates, it can drive the reciprocating screw 51 to rotate together; the rear side of the hollow tube 20 penetrating the square frame 17 is provided with a spur gear 52 When the spur gear 52 rotates, it can drive the hollow tube 20 to rotate together; a square plate 53 is arranged at the rear of the square frame 17, and a rack 54 matching the spur gear 52 is arranged on the square plate 53. When the square plate 53 moves, it can drive the rack 54 to move together, and when the rack 54 moves, it can drive the spur gear 52 matched with it to rotate; connecting plates 55 are symmetrically arranged between the square plates 53, and an L-shaped block 56 matching with it is sleeved on the reciprocating screw rod 51, and the L-shaped block 56 is connected to one of the square plates 53. When the reciprocating screw rod 51 rotates, it can drive the L-shaped block 56 to move, and the movement of the L-shaped block 56 can drive one of the square plates 53 to move. When one of the square plates 53 moves, it can drive the other square plates 53 to move together through the connecting plate 55.

[0058] In the specific implementation process, when the driving motor 50 rotates, it can drive the reciprocating screw 51 to rotate together, and when the reciprocating screw 51 rotates, it can drive the L-shaped block 56 to move. The movement of the L-shaped block 56 can drive one of the square plates 53 to move. When one of the square plates 53 moves, it can drive the other square plates 53 to move together through the connecting plate 55. When the square plate 53 moves, it can drive the rack 54 to move together. When the rack 54 moves, it can drive the spur gear 52 matched with it to rotate. When the spur gear 52 rotates, it can drive the hollow tube 20 to rotate together. When the hollow tube 20 rotates, it can drive the annular cylinder 21 to rotate together, so that the raw materials in the annular cylinder 21 can be made into freeze-dried food more evenly, thereby further improving the freeze-drying production efficiency.

[0059] Reference Fig.10 As shown, in order to facilitate the collection of water vapor after ice sublimation and prevent water vapor from affecting the freeze-dried food stored in the storage box 30; specifically, a water storage tank 6 located in the isolation box 40 is provided at the bottom of the inner wall of the freeze-drying box 1, and a water collecting funnel 60 is provided between the water storage tank 6 and the top of the isolation box 40. After water vapor falls into the water collecting funnel 60, it solidifies into water. The solidified water moves along the water collecting funnel 60 and falls into the water storage tank 6. The water storage tank 6 is used for storing water, so as to collect water vapor after ice sublimation and prevent water vapor from affecting the freeze-dried food stored in the storage box 30.

[0060] In addition, the present invention also provides a freeze-drying processing method for freeze-dried pet dairy products, comprising the following steps:

[0061] Step 1: The operator opens the sealed door 10 through the handle 11, and then pulls the square frame 17. When the square frame 17 moves, it can drive the T-shaped block 15 to move together under the restriction of the strip plate 14, so that the square frame 17 is tilted for the operator to operate. Then the operator pushes the block 28. When the block 28 moves, it can drive the push rod 27 to move together. When the block 28 moves, it can drive the sliding block 240 to move together. When the sliding block 240 moves, it can drive the sliding net 24 to move together. When the block 28 and the moving ring 2 41 conflicts, the block 28 is rotated so that the block 28 is fixed by the moving ring 241, thereby facilitating the operator to place the raw materials into the placement groove 22; when the placement of the raw materials is completed, the block 28 is rotated again to release the fixation of the block 28 and the moving ring 241, and the sliding block 240 drives the sliding net 24 to return to its original position under the action of the spring 26, thereby fixing the raw materials in the placement groove 22, and the cooperation of the sliding net 24 and the fixed net 23 can fix the raw materials in the placement groove 22 and increase the contact area between the raw materials and the outside world.

[0062] Step 2: After the placement of the raw materials is completed, the freeze dryer 41 is started to generate cold air. The generated cold air can be transmitted to the output pipe 42, and the cold air in the output pipe 42 can be transmitted to the U-shaped connecting pipe 43. The cold air in the U-shaped connecting pipe 43 can be transmitted to the T-slot 45 through the input telescopic pipe 44. The cold air in the T-slot 45 is transmitted to the square frame 17 through the exhaust grille 46 to freeze the raw materials in the annular cylinder 21. The cold air in the T-slot 45 can also be transmitted to the ventilation groove 47. The cold air in the ventilation groove 47 can be transmitted to the hollow tube 20 through the air inlet 48. The cold air in the hollow tube 20 can be transmitted to the placement groove 22 through the exhaust hole 49 to freeze the raw materials in the placement groove 22, thereby realizing the transmission of cold air to multiple directions of the raw materials, thereby accelerating the freeze-dried production.

[0063] Step 3: During the freezing process, when the driving motor 50 rotates, it can drive the reciprocating screw 51 to rotate together, and when the reciprocating screw 51 rotates, it can drive the L-shaped block 56 to move. The movement of the L-shaped block 56 can drive one of the square plates 53 to move. When one of the square plates 53 moves, it can drive the other square plates 53 to move together through the connecting plate 55. When the square plate 53 moves, it can drive the rack 54 to move together. When the rack 54 moves, it can drive the spur gear 52 matched with it to rotate. When the spur gear 52 rotates, it can drive the hollow tube 20 to rotate together. When the hollow tube 20 rotates, it can drive the annular cylinder 21 to rotate together, so that the raw materials in the annular cylinder 21 can be made into freeze-dried food more evenly, further improving the production efficiency of freeze-drying. When the water in the raw materials is frozen into ice, the freeze-drying box 1 is evacuated by an external vacuum pump through the vacuum pump interface 12, so that the ice in the raw materials sublimates, the water in the raw materials is removed, and the freeze-drying production is completed.

[0064] Step 4: After the ice sublimates, it turns into water vapor. Under the action of gravity, the water vapor will fall into the water collecting funnel 60 and solidify into water. The solidified water moves along the water collecting funnel 60 and falls into the water storage tank 6. The water storage tank 6 is used to store water, so as to collect the water vapor after the ice sublimates and prevent the water vapor from affecting the freeze-dried food stored in the storage box 30.

[0065] Step 5: After the freeze-dried food is prepared, the operator pulls the storage box 30 to move the storage box 30 out of the isolation box 40. When the storage box 30 moves, it can drive the Z-shaped rod 31 to move together. When the Z-shaped rod 31 moves, it can drive one of the T-shaped blocks 15 to move together. When the T-shaped block 15 connected to the Z-shaped rod 31 moves, it can drive the telescopic rod 34 to move together. Through the cooperation of the telescopic rod 34 and the strip plate 14, the T-shaped block 15 and the square frame 17 can tilt downward when they move forward to the limit distance. When the square frame 17 tilts downward, it can drive the annular cylinder 21 to tilt downward, so that the freeze-dried food in the placement groove 22 is concentrated under the sliding net 24; when the telescopic rod 34 moves, it can drive the moving block 32 When the moving block 32 moves, it can drive another T-shaped block 15 to move together, and when the other T-shaped block 15 moves, it can drive the square frame 17 connected thereto to move; then the operator rotates the threaded rod 351, and when the threaded rod 351 moves, it can drive the L-shaped rod 352 to move together, and when the L-shaped rod 352 moves, it can drive the synchronous plate 350 to move together, and when the synchronous plate 350 moves, it can drive the moving ring 241 to move together, and when the moving ring 241 moves, it can drive the sliding block 240 connected thereto to move together, and when the sliding block 240 moves, it can drive the sliding net 24 to move together, so that the freeze-dried food prepared in the placement groove 22 can be smoothly removed and fall into the storage box 30.

[0066] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0067] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A freeze drying device for freeze-dried pet dairy products, comprising a freeze drying chamber (1), characterized in that: The outer wall of the freeze drying box (1) is provided with a vacuum pump interface (12), and a one-way valve (13) is sleeved on the vacuum pump interface (12). The freeze drying box (1) is symmetrically provided with strip plates (14), and T-shaped blocks (15) are slidably provided in the strip plates (14). Square frames (17) are provided between the T-shaped blocks (15), and a plurality of placement mechanisms (2) are provided between the inner walls along the length direction of the square frames (17). The freeze drying box (1) is provided with a collecting mechanism (3), and a freezing mechanism (4) is provided at the bottom of the inner wall of the freeze drying box (1).

2. A freeze drying device for freeze-dried pet dairy products according to claim 1, characterized in that: The placement mechanism (2) comprises a plurality of hollow tubes (20) rotatably arranged between the inner walls of the square frame (17); a circular cylinder (21) is sleeved on the hollow tube (20); a plurality of placement grooves (22) are evenly arranged along the circumference of the circular cylinder (21); a fixed net (23) covering the placement grooves (22) is arranged on the circular cylinder (21); and a sliding net (24) located below the fixed net (23) is slidably arranged on the circular cylinder (21).

3. A freeze drying device for freeze-dried pet dairy products according to claim 2, characterized in that: The placement mechanism (2) further comprises a sliding block (240) arranged on the top of the sliding net (24) and slidably arranged on the fixed net (23); a moving ring (241) penetrating the sliding block (240) is arranged on the annular cylinder (21); a fixed block (25) is arranged on the top of the fixed net (23) at a side away from the sliding block (240); a spring (26) is arranged between the fixed block (25) and the sliding block (240); a push rod (27) is rotatably arranged on the side of the sliding block (240) away from the spring (26); and a clamping block (28) cooperating with the moving ring (241) is arranged on the side of the push rod (27) away from the sliding block (240).

4. A freeze drying device for freeze-dried pet dairy products according to claim 3, characterized in that: The freezing mechanism (4) comprises an isolation box (40) arranged at the bottom of the inner wall of the freeze drying box (1); a freeze dryer (41) located in the isolation box (40) is arranged at the bottom of the inner wall of the freeze drying box (1); an output pipe (42) is arranged at the top of the freeze dryer (41) and passes through the isolation box (40); a U-shaped connecting pipe (43) is arranged at the top of the output pipe (42); and the U-shaped connecting pipe (43) and the T-shaped block (15) are connected via an input telescopic pipe (44).

5. A freeze drying device for freeze-dried pet dairy products according to claim 4, characterized in that: The freezing mechanism (4) further comprises a T-shaped groove (45) formed in the T-shaped block (15); an exhaust grille (46) is provided on one side of the T-shaped groove (45) close to the annular cylinder (21); a ventilation groove (47) connected to the T-shaped groove (45) is provided on the front side of the square frame (17); an air inlet (48) for connecting the hollow tube (20) to the ventilation groove (47) is provided on the inner wall of the square frame (17); and a plurality of exhaust holes (49) are provided on the hollow tube (20) and the annular cylinder (21).

6. A freeze drying device for freeze-dried pet dairy products according to claim 5, characterized in that: The collecting mechanism (3) comprises a storage box (30) slidably arranged at the bottom of the isolation box (40), a Z-shaped rod (31) is symmetrically arranged between the top of the storage box (30) and one of the T-shaped blocks (15), a moving block (32) is slidably arranged at the bottom of the other T-shaped block (15), a telescopic rod (34) is hingedly arranged between the moving block (32) and the T-shaped block (15) connected to the Z-shaped rod (31), and a synchronization unit (35) is arranged between the annular cylinders (21).

7. A freeze drying device for freeze-dried pet dairy products according to claim 6, characterized in that: The synchronization unit (35) comprises a synchronization plate (350) slidably arranged between the moving rings (241); a threaded rod (351) is arranged on the front side of the square frame (17) by threaded rotation; the threaded rod (351) is connected to one of the synchronization plates (350) by an L-shaped rod (352); and a stopper (353) is arranged on the top of the uppermost T-shaped block (15).

8. A freeze drying device for freeze-dried pet dairy products according to claim 2, characterized in that: A rotating mechanism (5) is arranged inside the freeze drying box (1) and at the rear side of the square frame (17). The rotating mechanism (5) includes a driving motor (50) arranged on the outer wall of the freeze drying box (1) through a motor housing. A reciprocating screw (51) located inside the freeze drying box (1) is arranged on the output shaft of the driving motor (50). A spur gear (52) is arranged on the rear side of the hollow tube (20) and passes through the square frame (17). A square plate (53) is arranged at the rear of the square frame (17). A rack (54) cooperating with the spur gear (52) is arranged on the square plate (53). An L-shaped block (56) cooperating with the reciprocating screw (51) is sleeved on the reciprocating screw (51), and the L-shaped block (56) is connected to one of the square plates (53).

9. A freeze drying device for freeze-dried pet dairy products according to claim 4, characterized in that: A water storage tank (6) located inside the isolation box (40) is provided at the bottom of the inner wall of the freeze drying box (1), and a water collecting funnel (60) is provided between the water storage tank (6) and the top of the isolation box (40).

10. A freeze-drying method for freeze-dried pet dairy products, comprising a freeze-drying device for freeze-dried pet dairy products according to any one of claims 1 to 9, characterized in that: The freeze drying process comprises the following steps: S1, raw material loading: the sliding net (24) is moved by pushing the push rod (27), the movement of the sliding net (24) is restricted by the cooperation of the clamping block (28) and the moving ring (241), and then the raw material is placed in the placement groove (22), and then the sliding net (24) is reset by the clamping block (28) and the spring 1 (26); S2, freezing of raw materials: cold air from the freeze dryer (41) is transmitted to the T-shaped slot (45) and blown toward the annular cylinder (21) from the exhaust grille (46). The cold air is also transmitted to the placement slot (22) to freeze the raw materials. At the same time, the annular cylinder (21) is driven to rotate together with the driving motor (50) to accelerate the freezing of the raw materials. S3, raw material collection: the square frame (17) is moved out of the freeze-drying box (1) by pulling the storage box (30), and then the sliding net (24) on the same horizontal plane is moved backward by rotating the threaded rod (351), so that the raw materials in the placement groove (22) fall into the storage box (30).

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