Food classification partial freezing fresh-keeping equipment and control method

Abstract

The invention provides food classification partial freezing preservation equipment and a control method, and relates to the technical field of food preservation, the food classification partial freezing preservation equipment comprises a rack, a conveying assembly and an ammonia cooling tunnel, a camera is arranged on one side of the inlet end of the ammonia cooling tunnel, and the ammonia cooling tunnel is arranged on the upper portion of the rack and covers the middle of the conveying assembly; the conveying assembly comprises a driving assembly, a first roller, a second roller and a dragging and releasing belt, the driving assembly provides driving force for the first roller, the dragging and releasing belt is installed on the outer side of the first roller and the outer side of the second roller, an inclined groove is formed in the outer side of the first roller, the dragging and releasing belt comprises containing assemblies and a transmission chain, the adjacent containing assemblies are movably connected, and the transmission chain is connected with the containing assemblies. And the placing assembly is movably connected with the transmission chain. By means of the placement assembly which is composed of the heat preservation corrugated cover and the heat preservation taper sleeve and used for reducing direct cooling, after the types of food needing to be preserved are recognized and obtained, the food can be correspondingly cooled for different time, and then it is guaranteed that different types of food can have better taste.

Description

Technical Field

[0001] The present invention relates to the technical field of food preservation, and specifically relates to a food classification micro-freezing preservation device and a control method thereof. Background Art

[0002] Food preservation is a technology that delays the deterioration process of food and maintains its freshness, nutrition and flavor. In the preservation process of fruit and vegetable foods, preservation equipment is commonly used. Conventional preservation equipment reduces enzyme activity by rapid cooling, and then is quickly consumed or vacuum-packed again in a low-temperature environment. Different from direct vacuum packaging, it is common in the process of short-distance supply of fresh food or reprocessing before multiple production lines to ensure taste. However, common preservation equipment cannot effectively distinguish the types of preserved foods and cannot perform targeted preservation. Therefore, it is necessary to improve the existing technology. Summary of the Invention

[0003] To achieve the above objectives, the present invention is realized through the following technical solutions: A food classification micro-freezing preservation device includes a frame, a conveying component and an ammonia cooling tunnel. A camera is provided on one side of the inlet end of the ammonia cooling tunnel. The ammonia cooling tunnel is arranged on the upper part of the frame and covers the middle part of the conveying component. The conveying component includes a driving component, a first roller, a second roller and a drag belt. The driving component provides driving force for the first roller. The drag belt is installed outside the first roller and the second roller. The outside of the first roller includes inclined grooves: The drag belt includes a placing component and a transmission chain. Adjacent placing components are movably connected and form a circular ring as a whole. The placing component is movably connected with the transmission chain; The placing component includes a sub-container with an upward opening design. The bottom of the sub-container is provided with a drag platform connected by a tension spring group. Electro-magnets with the same magnetic poles are provided at the lower part of the drag platform and the bottom of the sub-container opposite thereto. An inner shell is fixed inside the sub-container. A heat preservation cone sleeve is fixed between the inner shell and the drag platform. Two guide rods are rotatably arranged outside the inner shell inside the sub-container. A heat preservation layer is arranged outside the guide rods. A heat preservation corrugated cover is fixed between the bottom of the sub-container and the guide rods. A push-link component is arranged between the drag platform and the guide rods, which can pull back the drag platform through the tension spring group to drive the guide rods to rotate after the electro-magnet is powered off; A gear-rack group is arranged at one of the adjacent ends of the two guide rods. The gear-rack group provides an upward thrust for the rack included in the inclined groove. A temperature sensor is arranged at the bottom of the sub-container.

[0004] Preferably, both the first roller and the second roller include a roller shaft and two outer sprockets distributed in a group. The inclined grooves are circumferentially distributed along the axis of the first roller, and the side opposite to the rotation direction of the inclined groove is an arc surface. The circumferentially distributed inclined grooves are distributed between the two outer sprockets distributed in a group.

[0005] Preferably, there are two sets of the pushing and connecting components, and each set includes a slider, a first connecting rod, and a second connecting rod. The slider is slidably connected to the bottom of the sub-container. The first connecting rod is rotatably connected between the slider and the drag platform. The second connecting rod is rotatably connected between the slider and the guide rod.

[0006] Preferably, a heat preservation layer is also provided on the upper side of the drag platform. Heat preservation side pieces are provided at both ends of the guide rod on the inner wall of the sub-container. The two heat preservation side pieces are respectively rotatably connected to the ends of the guide rod. The heat preservation corrugated cover is closely attached to the corresponding heat preservation side piece.

[0007] Preferably, one of the ends of the two guide rods close to each other is a toothed end shaft, and the other ends are in contact with each other. The toothed end shaft meshes with the rack.

[0008] Preferably, the transmission chain includes chain links, and vertical side grooves are provided on the outer sides of the chain links. The sub-container is fixed with a support plate group at the position corresponding to the outer sprocket. The support plate group is threadedly connected with screws, and the ends of the screws extend into the side grooves.

[0009] Preferably, the driving assembly includes two driving sprockets, a driving chain, and a motor. The motor is fixed to the frame, and a driving sprocket is fixed to the output end. The other driving sprocket is fixed to one end of the second roller. The two driving sprockets are externally meshed to drive the driving chain.

[0010] Preferably, the bottom of the sub-container includes a controller 1, a power supply, and a signal transceiver module 1. The power supply, the signal transmitting module, the temperature sensor, and the electromagnet are all electrically connected to the controller 1. A controller 2 for controlling the ammonia cooling tunnel is provided outside the ammonia cooling tunnel. The controller includes a signal transceiver module 2. The signal transceiver module 1 cooperates with the signal transceiver module to realize the control of the controller 1 by the controller 2. The controller 1 pre-stores the optimal fresh-keeping temperature range of the food.

[0011] A control method for a food classification micro-freezing fresh-keeping device includes the following contents: First, control the ammonia cooling tunnel to be opened by the controller 2, and control the electromagnet, the motor, and the temperature sensor to be turned on by the controller 1. Initially, the guide rod retracts between the sub-container and the inner shell. Then, place the food to be micro-frozen on the drag platform. Drive the drag belt through the driving assembly so that the food enters the ammonia cooling tunnel. After the temperature sensor detects the corresponding temperature and the controller 1 determines that it is within the optimal fresh-keeping temperature range of the stored food, control the electromagnet to cut off the power. Under the elastic recovery of the tension spring group, the drag platform moves downward, driving the first connecting rod to push the slider, causing the second connecting rod to drive the guide rod to rotate and close, and pulling the heat preservation corrugated cover to form a wrapping space.

[0012] The present invention provides a food classification micro-freezing preservation device and a control method. It has the following beneficial effects: In the present invention, through a placement component for reducing direct cooling composed of a heat preservation corrugated cover and a heat preservation conical sleeve, after identifying and obtaining the types of foods to be preserved, different cooling times are targeted for different types of foods, so as to ensure that different types of foods all have better taste. The overall structure is designed compactly, and it can not only be applied to cooperate with an ammonia-cooling tunnel, but also be applied to the rapid preservation process of foods passing through a cold storage. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic diagram of the structure of the present invention; Figure 2 is a schematic diagram of the structure of the present invention after removing the ammonia-cooling tunnel and the drag belt; Figure 3 is Figure 2 a cross-sectional view at the first roller and the second roller in Figure 4 is a schematic diagram of the structure of the drag belt in the present invention; Figure 5 is a schematic diagram of the front and side views of the structure of the placement component in the present invention; Figure 6 is a schematic diagram of the back and side views of the structure of the placement component in the present invention Figure 7 is a cross-sectional view of the placement component in the present invention; Figure 8 is a partial schematic diagram of the present invention at the tooth end shaft and the rack; Figure 9 is a schematic diagram of the structure of the placement component in the present invention after removing the drag platform; Figure 10 is a schematic diagram of the structure of the present invention at the guide rod and the second side plate.

[0014] Among them, 1. frame; 2. ammonia-cooling tunnel; 3. drive assembly; 4. first roller; 5. second roller; 6. inclined chute; 7. outer sprocket; 8. roller shaft; 9. connecting plate; 10. fixing plate; 11. sub-container; 13. inner shell; 15. connecting block; 16. heat preservation conical sleeve; 17. drag platform; 19. first side plate; 20. heat preservation corrugated cover; 21. guide rod; 22. slider; 24. first connecting rod; 25. electromagnet; 26. spring; 27. second connecting rod; 28. tooth end shaft; 29. rack; 30. second side plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0015] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0016] As Figures 1-10 shown, an embodiment of the present invention provides a food classification micro-freezing preservation device, which includes a frame 1, a conveying component, and an ammonia-cooling tunnel 2. A camera is arranged on one side of the inlet end of the ammonia-cooling tunnel. In the above, the camera is used to obtain the types of foods to be micro-frozen and preserved, and compare them with the food type recognition features pre-stored in the second controller, so as to know which kind of food is placed on the drag platform 17. The ammonia-cooling tunnel 2 is arranged on the upper part of the frame 1 and covers the middle part of the conveying component, that is, the ammonia-cooling tunnel 2 is used to micro-freeze and preserve the foods to be micro-frozen and conveyed by the conveying component. The conveying component includes a driving component 3, a first roller 4, a second roller 5, and a drag belt. The driving component 3 provides driving force for the first roller 4. The drag belt is installed outside the first roller 4 and the second roller 5. Both the first roller 4 and the second roller 5 include a roller shaft 8 and two outer sprockets 7 distributed in a group. The inclined grooves 6 are circumferentially distributed along the axis of the first roller 4, and the side facing the rotation direction of the inclined grooves 6 is an arc surface. The circumferentially distributed inclined grooves 6 are distributed between two outer sprockets 7 distributed in a group. The outside of the roller shaft 8 corresponding to the first roller 4 includes the inclined grooves 6. In the above, the driving component 3 includes two driving sprockets, a driving chain, and a motor. The motor is fixed to the frame 1, and a driving sprocket is fixed to the output end. The other driving sprocket is fixed to one end of the second roller 5. The two driving sprockets are externally meshed with the driving chain. That is, the motor drives the driving sprocket connected thereto to cooperate with the driving chain to rotate the other driving sprocket connected to the second roller 5, thereby realizing the rotation of the second roller 5. The movement direction on the upper side of the drag belt is from the first roller 4 to the second roller 5, so that the drag belt transports the foods to be preserved into the ammonia-cooling tunnel 2.

[0017] The drag belt includes a placement component and a transmission chain. The adjacent placement components are movably connected and are integrally formed into a circular ring shape. The placement component is movably connected to the transmission chain. The placement component includes a sub-container 11 with an upward opening design. The bottom of the sub-container 11 is provided with a drag platform 17 connected by a tension spring group. Electromagnets 25 with the same electromagnetic poles are provided at the lower part of the drag platform 17 and the bottom of the sub-container 11 opposite thereto. Specifically, the adjacent placement components are movably connected by fixing plates 10 fixedly connected to the four sides of the drag platform 17, and the adjacent placement components are rotatably connected by connecting plates 9 through the fixing plates 10 close to each other. That is, after connection, each drag platform 17 forms a net structure (refer to the appendix Figure 4(visible connection distribution characteristics of the components). An inner shell 13 is fixed to the inner side of the sub-container 11. Specifically, in the direction where the inner shell 13 is connected to the sub-container 11, there are connecting blocks 15 for fixed connection. The other end of the connecting block 15 is fixed to the sub-container 11, and in the direction corresponding to the guide rods 21, there are receiving openings to facilitate the two guide rods 21 to approach each other, and then contact is achieved by squeezing the heat-insulating layer. A heat-insulating conical sleeve 16 is fixed between the inner shell 13 and the drag platform 17. Inside the sub-container 11, two guide rods 21 are rotatably arranged in a split manner on the outside of the inner shell 13. A heat-insulating layer is arranged on the outside of the guide rods 21. A heat-insulating corrugated cover 20 is fixed between the bottom of the sub-container 11 and the guide rods 21. Between the drag platform 17 and the guide rods 21, there is a pushing and connecting component that drives the guide rods 21 to rotate by pulling back the drag platform 17 through a tension spring group after the electromagnets 25 are powered off. The sub-container 11, the drag platform 17, and the inner shell 13 are all made of food-grade stainless steel. The above-mentioned tension spring group includes four springs 26, and the four springs 26 are distributed at the four corners of the drag platform 17. When the two electromagnets 25 are energized, due to the repulsive force of the electromagnets 25, the four springs 26 are in a stretched state, and then the drag platform 17 moves away from the sub-container 11 towards the outside of the inner shell 13. The above-mentioned pushing and connecting component has two groups and both include a slider 22, a first connecting rod 24, and a second connecting rod 27. The slider 22 is slidably connected to the bottom of the sub-container 11. The first connecting rod 24 is rotatably connected between the slider 22 and the drag platform 17. The second connecting rod 27 is rotatably connected between the slider 22 and the guide rod 21. When the drag platform 17 moves away from the sub-container 11 towards the outside of the inner shell 13, the first connecting rod 24 is pulled to move, and then a pulling force is generated on the slider 22, and then the slider 22 pulls the second connecting rod 27 to move the guide rod 21 towards the space between the sub-container 11 and the inner shell 13; One of the two approaching ends of the two guide rods 21 is provided with a gear-rack group. The gear-rack group provides an upward thrust to the rack 29 included through the inclined groove 6. A temperature sensor is arranged at the bottom of the sub-container 11.

[0018] A heat-insulating layer is also arranged on the upper side of the drag platform 17. Two heat-insulating side pieces are arranged on the inner wall of the sub-container 11 at both ends of the guide rod 21. The two heat-insulating side pieces are respectively rotatably connected to the ends of the guide rod 21. The heat-insulating corrugated cover 20 is closely attached to the corresponding heat-insulating side piece. One of the mutually approaching ends of the two guide rods 21 is a toothed end shaft 28, and the other ends are in contact with each other. The toothed end shaft 28 meshes with the rack 29. The above-mentioned toothed end shaft 28 and the rack 29 form a gear-rack group. The above-mentioned heat-insulating side piece on the side close to the toothed end shaft 28 is the second side piece 30, and the one at the other end of the guide rod 21 is the first side piece 19. Among them, the end of the toothed end shaft 28 connected to the sub-container 11 is provided with a smooth shaft portion, and the second side piece 30 is sleeved on the smooth shaft portion.

[0019] The transmission chain includes chain links, and vertical side grooves are provided on the outer sides of the chain links. The distribution box 11 is fixed with a support plate group at the position corresponding to the outer sprocket 7. The support plate group is threadedly connected with screws and the ends of the screws extend into the side grooves. The above-mentioned transmission chain is not shown in the drawings, and its structure is the same as that of the transmission chains of bicycles and motorcycles. The only difference is that notch-shaped side grooves are provided on the outer sides of the outer link plates corresponding to the chain links and are distributed along the height direction of the outer link plates.

[0020] The bottom of the distribution box 11 includes a first controller, a power supply and a first signal transceiver module. The power supply, the signal emission module, the temperature sensor, the electromagnet 25 and the motor are all electrically connected to the first controller. A second controller for controlling the ammonia cooling tunnel 2 is provided on the outer side of the ammonia cooling tunnel 2. The controller includes a second signal transceiver module. The first signal transceiver module cooperates with the signal transceiver module to realize the control of the first controller by the second controller. The first controller prestores the optimal fresh-keeping temperature range of the food.

[0021] A control method for a food classification micro-freezing fresh-keeping device includes the following contents: First, control the ammonia cooling tunnel 2 to start through the second controller, and control the electromagnet 25, the motor and the temperature sensor to start through the first controller; initially, the guide rod 21 retracts between the distribution box 11 and the inner shell 13. Then, place the food to be micro-frozen on the drag platform 17. Through the driving of the drag belt by the driving assembly 3, the food enters the ammonia cooling tunnel 2. Before this, obtain the information of the food to be fresh-kept through the camera and confirm it through the second controller, and then obtain the temperature value range to be detected by the actual temperature sensor. After the temperature sensor detects the corresponding temperature and the first controller determines that it is within the optimal fresh-keeping temperature range of the stored food, control the electromagnet 25 to cut off the power. Under the elastic recovery of the tension spring group, the drag platform 17 moves downward, driving the first connecting rod 24 to push the slider 22 so that the second connecting rod 27 drives the guide rod 21 to rotate and close, pulling the heat-insulating corrugated cover 20 to form a wrapping space, thereby reducing the direct cooling of the ammonia cooling tunnel 2 to the food to be fresh-kept.

[0022] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirits of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A food classification micro-freezing preservation device, comprising a frame (1), a conveying component, and an ammonia cooling tunnel (2). A camera is arranged on one side of the inlet end of the ammonia cooling tunnel. The ammonia cooling tunnel (2) is arranged on the upper part of the frame (1) and covers the middle part of the conveying component, and is characterized in that: The transfer assembly includes a driving assembly (3), a first roller (4), a second roller (5) and a drag-and-drop belt. The driving assembly (3) provides driving force for the first roller (4). The drag-and-drop belt is installed outside the first roller (4) and the second roller (5). The outside of the first roller (4) includes an inclined groove (6): The drag-and-drop belt includes a placement assembly and a transmission chain. Adjacent placement assemblies are movably connected and are integrally formed into a circular ring shape. The placement assembly is movably connected to the transmission chain; The placement assembly includes a distribution box (11) with an upward opening design. The bottom of the distribution box (11) is provided with a drag platform (17) connected by a tension spring group. Electro-magnets (25) with the same electro-magnetic poles are provided at the lower part of the drag platform (17) and the bottom of the corresponding distribution box (11). An inner shell (13) is fixed inside the distribution box (11). A heat preservation conical sleeve (16) is fixed between the inner shell (13) and the drag platform (17). Two guide rods (21) are rotatably arranged outside the inner shell (13) inside the distribution box (11). The outside of the guide rods (21) is provided with a heat preservation layer. A heat preservation corrugated cover (20) is fixed between the bottom of the distribution box (11) and the guide rods (21). A push-link assembly is arranged between the drag platform (17) and the guide rods (21) to pull back the drag platform (17) through the tension spring group after the electro-magnets (25) are powered off to drive the guide rods (21) to rotate; One of the two adjacent ends of the two guide rods (21) is provided with a gear-rack group. The gear-rack group provides an upward thrust to a rack (29) included in the inclined groove (6). A temperature sensor is provided at the bottom of the distribution box (11).

2. The food classification semi-freezing preservation device according to claim 1, characterized in that: Both the first roller (4) and the second roller (5) include a roller shaft (8) and two outer sprockets (7) distributed in a group. The inclined groove (6) is circumferentially distributed along the axis of the first roller (4), and one side facing the rotation direction of the inclined groove (6) is an arc surface. The circumferentially distributed inclined grooves (6) are distributed between two outer sprockets (7) distributed in a group.

3. The food classification semi-freezing preservation device according to claim 2, wherein: There are two groups of the push-link assemblies, and each includes a slider (22), a first connecting rod (24) and a second connecting rod (27). The slider (22) is slidably connected to the bottom of the distribution box (11). The first connecting rod (24) is rotatably connected between the slider (22) and the drag platform (17). The second connecting rod (27) is rotatably connected between the slider (22) and the guide rod (21).

4. A food classification micro-freezing preservation device according to claim 3, characterized in that: A heat preservation layer is also provided on the upper side of the drag platform (17). Two heat preservation side pieces are provided on the inner wall of the distribution box (11) at both ends of the guide rod (21). The two heat preservation side pieces are respectively rotatably connected to the ends of the guide rod (21). The heat preservation corrugated cover (20) is closely attached to the corresponding heat preservation side piece.

5. The food classification micro-freezing fresh-keeping device according to claim 4, characterized in that: One of the mutually adjacent ends of the two guide rods (21) is a toothed end shaft (28), and the other ends are in contact with each other. The toothed end shaft (28) meshes with the rack (29).

6. The food classification micro-freezing fresh-keeping device according to claim 5, characterized in that: The transmission chain includes chain links, and vertical side grooves are provided on the outer sides of the chain links. The distribution box (11) is fixed with a support plate group at the position corresponding to the outer sprocket (7). The support plate group is threadedly connected with screws, and the ends of the screws extend into the side grooves.

7. A food classification micro-freezing fresh-keeping device according to claim 6, characterized in that: The driving assembly (3) includes two driving sprockets, a driving chain and a motor. The motor is fixed to the frame (1), and a driving sprocket is fixed to the output end. The other driving sprocket is fixed to one end of the second roller (5). The two driving sprockets are externally meshed to drive the chain.

8. A food classification micro-freezing preservation device according to claim 7, characterized in that: The bottom of the distribution box (11) includes a first controller, a power supply and a first signal transceiver module. The power supply, the signal transmitting module, the temperature sensor, the electromagnet (25) and the motor are all electrically connected to the first controller. A second controller for controlling the ammonia cooling tunnel (2) is provided outside the ammonia cooling tunnel (2). The controller includes a second signal transceiver module. The first signal transceiver module cooperates with the signal transceiver module to realize the control of the first controller by the second controller. The first controller prestores the optimal fresh-keeping temperature range of the food.

9. The control method proposed for a food classification micro-freezing preservation device according to claim 8, characterized in that, It includes the following contents: First, the ammonia cooling tunnel (2) is controlled to be opened by the second controller, and the electromagnet (25), the motor and the temperature sensor are controlled to be opened by the first controller. Initially, the guide rod (21) retracts between the distribution box (11) and the inner shell (13). Then, the food to be micro-frozen is placed on the drag platform (17). Through the driving of the drag belt by the driving assembly (3), the food enters the ammonia cooling tunnel (

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