Non-contact intelligent storage refrigeration house with multiple stackers operating on a single track

Abstract

The application discloses a kind of non-contact intelligent storage refrigeration house of single track upper multi-palletizer operation, belong to refrigeration house technical field, comprising: refrigeration house shell, shelf, track, two stackers and control center, when needing to take the multiple articles on the shelf, according to the position of article on the shelf, the control center controls the stacker closest to one of the articles on the shelf to start working, picks up the article and moves to the entrance corresponding to the stacker, while the other stacker moves to the position of another article on the shelf under the action of the control center, and picks up the article and moves to the entrance corresponding to the stacker, by setting two stackers on the same track, and opening entrances corresponding to the two stackers on the refrigeration house, the access efficiency of the article is increased.

Description

Technical Field

[0001] This invention relates to the field of cold storage technology, specifically to a non-contact intelligent cold storage system with multiple stacker cranes operating on a single track. Background Technology

[0002] A cold storage facility is a type of refrigeration equipment. It refers to an artificially created environment with different temperature and humidity than the outside world, used for the constant temperature and humidity storage of food, liquids, chemicals, pharmaceuticals, vaccines, and scientific experimental materials. Cold storage facilities are typically located near ports of transport or the point of origin. Compared to refrigerators, cold storage facilities have a larger refrigeration area and share the same refrigeration principle.

[0003] To facilitate the retrieval of goods in cold storage facilities, stacker cranes are typically installed to retrieve items placed on shelves and transfer them to exits for easy access by staff. However, cold storage facilities usually have only a limited number of stacker cranes and corresponding exits, resulting in low efficiency in retrieving and storing goods. Therefore, there is an urgent need to design a non-contact intelligent cold storage system with multiple stacker cranes operating on a single track to solve these problems. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to increase the efficiency of storing and retrieving goods by setting two stacker cranes on the same track and opening entrances and exits on the cold storage corresponding to the two stacker cranes respectively.

[0005] The technical solution adopted by the present invention to solve the technical problem is: a non-contact intelligent cold storage with multiple stacker cranes operating on a single track, comprising: a cold storage shell, shelves, a track, two stacker cranes and a control center;

[0006] The cold storage shell has a freezing chamber, the shelves and rails are all set in the freezing chamber, the control center is set on the cold storage shell, the two stacker cranes are both set on the rails and are driven by the rails, and the two stacker cranes are electrically connected to the control center.

[0007] The cold storage shell has two entrances and exits. When the two stacker cranes are located at the two ends of the track, the positions of the two stacker cranes correspond to the two entrances and exits respectively.

[0008] When multiple items need to be retrieved from the shelf, the control center controls the stacker crane closest to one of the items on the shelf to start working, based on the position of the items on the shelf, to pick up the item and move it to the corresponding entrance / exit of the stacker crane. At the same time, another stacker crane, under the control of the control center, moves to the position of another item on the shelf and picks up the item and moves it to the corresponding entrance / exit of the stacker crane.

[0009] As a preferred embodiment of the present invention, the track is located at the bottom center of the freezing chamber, the shelf is located on both sides of the track inside the freezing chamber, the stacker is equipped with an encoder, and limit switches are provided at both ends and in the middle of the track.

[0010] As a preferred embodiment of the present invention, two access platforms are respectively provided in the freezing chamber near the two inlets and outlets. When the two stacker cranes are located at the two ends of the track, the positions of the two stacker cranes correspond to the two inlets and outlets respectively, and the two access platforms are respectively located between the two inlets and outlets and the corresponding stacker cranes.

[0011] As a preferred embodiment of the present invention, each of the two entrance / exit locations is provided with an electric sliding door corresponding to the two entrances / exits respectively. The electric sliding door is used to control the blocking of the corresponding entrance / exit. The control center is electrically connected to the two electric sliding doors and the encoders located on the two stacker cranes respectively. The encoders are electrically connected to the corresponding stacker cranes.

[0012] As a preferred embodiment of the present invention, the stacker includes a driving linear motor, a height movement mechanism, a first telescopic mechanism, a second telescopic mechanism, and a clamping mechanism. The driving linear motor is driven and connected to a track. A stacker base plate is provided on the driving linear motor. A processor is provided on the stacker base plate. The height movement mechanism is provided on the stacker base plate. The processor is electrically connected to the control center and the driving linear motor.

[0013] As a preferred embodiment of the present invention, the height movement mechanism includes a lifting cylinder, which is disposed on the bottom plate of the stacker. The output end of the lifting cylinder is connected to a lifting push rod, and a bearing plate is disposed on the lifting push rod. The lifting cylinder is electrically connected to the processor.

[0014] As a preferred embodiment of the present invention, the first telescopic mechanism includes two first strip-shaped slot seats, which are arranged in parallel and respectively disposed at the edge of the bearing plate. A first cavity is formed in the first strip-shaped slot seat, and a first drive motor is disposed in the first cavity. A first screw is connected to the output end of the first drive motor, and a first movable seat is threadedly connected to the first screw. The first movable seat can slide relative to the first cavity. The processor is electrically connected to the first drive motor.

[0015] As a preferred embodiment of the present invention, the second telescopic mechanism includes two second strip-shaped slot seats, which are arranged in parallel on two first movable seats respectively. A second slot cavity is formed in the second strip-shaped slot seat, and a second drive motor is arranged in the second slot cavity. A second screw is connected to the output end of the second drive motor, and a second movable seat is threadedly connected to the second screw. The second movable seat can slide relative to the second slot cavity, and the processor is electrically connected to the second drive motor.

[0016] As a preferred embodiment of the present invention, the clamping mechanism includes two mounting plates, which are respectively mounted on two second movable seats. A clamping cylinder is provided on the mounting plate, and a clamping push rod is connected to the output end of the clamping cylinder. A clamping plate is provided on the clamping push rod, and the processor is electrically connected to the clamping cylinder.

[0017] As a preferred embodiment of the present invention, the encoder is disposed on one side of the two stacker base plates opposite each other, and the encoder is electrically connected to the processor.

[0018] The beneficial effects of this invention are reflected in:

[0019] 1. By setting up two stacker cranes and corresponding entrances and exits, and access platforms, when retrieving items from two or more shelves, the two stacker cranes can simultaneously retrieve two items, thereby increasing retrieval efficiency. During retrieval, one stacker crane retrieves the item closest to it, while the other stacker crane retrieves the other item that needs to be retrieved from the shelf. In addition, because two stacker cranes are set up, two items can be stored simultaneously. Through the above method, by setting up two stacker cranes on the same track, and opening entrances and exits on the cold storage corresponding to the two stacker cranes, the storage and retrieval efficiency of items is increased.

[0020] 2. By setting limit switches, the travel of the stacker crane can be limited to prevent collisions between two stacker cranes. Attached Figure Description

[0021] Figure 1 This is a top sectional view of the present invention;

[0022] Figure 2 This is a side view of the stacker crane, the corresponding track of the stacker crane, and the encoder of the present invention;

[0023] Figure 3 This is a top view schematic diagram of the second telescopic mechanism, clamping mechanism, and bearing plate of the present invention;

[0024] Figure 4 This is a side sectional view of the first telescopic mechanism and the second telescopic mechanism of the present invention.

[0025] Figure 5 This is a side cross-sectional view of the first telescopic mechanism and the second telescopic mechanism of the present invention when they move to one side;

[0026] Figure 6 This is a side cross-sectional schematic diagram of the first telescopic mechanism and the second telescopic mechanism of the present invention when they move to the other side;

[0027] Figure 7 This is a front view schematic diagram of the present invention;

[0028] Figure 8 This is a top cross-sectional view of the present invention with the limit switch removed.

[0029] In the diagram: 1. Cold storage shell; 2. Freezing chamber; 3. Shelf; 4. Track; 5. Stacker crane; 6. Entrance / exit; 7. Access platform; 8. Electric sliding door; 9. Control center; 10. Drive linear motor; 11. Stacker crane base plate; 12. Processor; 13. Lifting cylinder; 14. Lifting push rod; 15. Bearing plate; 16. First strip slot seat; 17. First slot cavity; 18. First drive motor; 19. First screw; 20. First moving seat; 21. Second strip slot seat; 22. Second slot cavity; 23. Second drive motor; 24. Second screw; 25. Second moving seat; 26. Mounting plate; 27. Clamping cylinder; 28. Clamping push rod; 29. ​​Clamping plate; 30. Encoder; 31. Limit switch. Detailed Implementation

[0030] The invention will now be described in further detail with reference to the accompanying drawings.

[0031] Combined with appendix Figure 1-8As shown, a non-contact intelligent cold storage unit with multiple stacker cranes operating on a single track includes a cold storage shell 1, a freezing chamber 2, a shelf 3, a track 4, a stacker crane 5, an entrance / exit 6, an access platform 7, an electric sliding door 8, a control center 9, a drive linear motor 10, a stacker crane base plate 11, a processor 12, a lifting cylinder 13, a lifting push rod 14, a bearing plate 15, a first strip-shaped slot seat 16, a first slot cavity 17, a first drive motor 18, a first screw 19, a first moving seat 20, a second strip-shaped slot seat 21, a second slot cavity 22, a second drive motor 23, a second screw 24, a second moving seat 25, a mounting plate 26, a clamping cylinder 27, a clamping push rod 28, a clamping plate 29, an encoder 30, and a limit switch 31.

[0032] Example 1:

[0033] Combined with appendix Figure 1-2As shown in Figure 7, a non-contact intelligent cold storage unit with multiple stacker cranes operating on a single track includes: a cold storage shell 1, shelves 3, a track 4, two stacker cranes 5, and a control center 9. The cold storage shell 1 has a freezing chamber 2. The shelves 3 and the track 4 are both located within the freezing chamber 2. Specifically, the track 4 is located at the bottom center of the freezing chamber 2, and the shelves 3 are located on both sides of the track 4 within the freezing chamber 2. Both stacker cranes 5 are mounted on the track 4 and are drivenly connected to the track 4. An encoder 30 is installed on each stacker crane 5. The cold storage shell 1 has two entrances / exits 6. Two access platforms 7 are respectively located near the two entrances / exits 6 within the freezing chamber 2. The two stacker cranes 5... When located at both ends of track 4, the positions of the two stacker cranes 5 correspond to the two entrances / exits 6 respectively, and the two access platforms 7 are located between the two entrances / exits 6 and the corresponding stacker cranes 5. Each of the two entrances / exits 6 is equipped with an electric sliding door 8 corresponding to each entrance / exit 6. The electric sliding door 8 is used to control the blocking of the corresponding entrance / exit 6. Preferably, the electric sliding door 8 includes a sliding door guide rail, a sliding door drive mechanism, and a sliding door. The sliding door guide rail and the sliding door drive mechanism are mounted on the cold storage shell 1 and located on the side of the corresponding entrance / exit 6. The sliding door is slidably connected to the sliding door guide rail, and the size of the sliding door corresponds to the entrance / exit 6. The sliding door drive mechanism and the sliding door drive... The connection is used to move the sliding door on the sliding door guide rail, so as to control the blocking of the corresponding entrance / exit 6 by the sliding door. The control center 9 is set on the cold storage shell 1. The control center 9 is electrically connected to two electric sliding doors 8, two stacker cranes 5, and encoders 30 located on the two stacker cranes 5. The encoders 30 are electrically connected to the corresponding stacker cranes 5. Preferably, the control center 9 includes an operation panel and a control processing module. The control panel can be one or two. The operation panel is electrically connected to the control processing module. The control processing module is electrically connected to the two electric sliding doors 8, the two stacker cranes 5, and the encoders 30 located on the two stacker cranes 5. The track Limit switches 31 are installed at both ends and in the middle. Since the position of the shelf 3 is determined during installation, the positions of different storage locations on the shelf 3 are determined, the length of the track 4 is determined, and the initial positions of the two stacker cranes at the two ends of the track 4 are determined, the correspondence between different positions on the shelf 3 and the stacker cranes 5 is set via the operation panel. This allows for the allocation of the stacker cranes 5 according to the location of the retrieved items. The working stroke of the electric sliding door 8 is set to cooperate with the stacker cranes 5 in storing and retrieving items. Because an encoder 30 is installed, it can monitor the stroke of the corresponding stacker crane 5. The encoder 30 monitors the XYZ three-axis position information of the corresponding stacker crane 5 with itself as the origin in real time and transmits the collected position information to the control center 9.The control center 9 performs motion planning and coordinated control based on the position information of the two stacker cranes 5. By acquiring the corresponding position information of the two stacker cranes 5, the control center 9 accurately determines the distance between the two stacker cranes and the limit switch 31 for interference monitoring. When a stacker crane 5 approaches the limit switch 31, it begins to decelerate; when it touches the limit switch 31, it stops. The limit switch 31 limits the travel of the stacker cranes 5, preventing collisions. Furthermore, based on the position information, the control center 9 can make adjustments and optimizations to ensure more precise and smooth subsequent movement.

[0034] When retrieving goods, the control center 9 selects the location of the items to be retrieved. Taking the retrieval of two items as an example, let's say the two items are Item 1 and Item 2. Item 1 and Item 2 are located on shelves 3 on either side of the middle of the track. Item 1 is closest to one of the stacker cranes 5. The control center 9 selects Item 1 and Item 2, and the stacker crane 5 closest to Item 1 moves towards Item 1, retrieves Item 1, and moves it to the entry / exit platform 7 corresponding to the stacker crane 5 closest to Item 1. At the same time, the other stacker crane 5 retrieves Item 2. Since Item 1 is already in a state of waiting to be retrieved by the stacker crane 5 on the shelf 3, and Item 2 is closest to the other stacker crane 5 at this time, the other stacker crane 5 retrieves Item 2. The items are moved to another access platform 7. When item 1 is placed on the corresponding access platform 7, the corresponding electric sliding door 8 releases the blockage on the corresponding access platform 7 so that the staff can take out the items on the access platform 7. When item 2 is placed on another corresponding access platform 7, the corresponding electric sliding door 8 releases the blockage on the corresponding access platform 7 so that the staff can take out the items on the access platform 7. After item 1 is taken out, the electric sliding door 8 blocks the corresponding entrance 6. After item 2 is taken out, the electric sliding door 8 blocks the corresponding entrance 6. When storing goods, taking two items as an example, the two items are placed on two access platforms 7 respectively. The corresponding stacker cranes 5 place the two items in the selected positions on the shelves 3 respectively. Then the two stacker cranes 5 move to the end of the track 4.

[0035] Combined with appendix Figure 1-6As shown, the stacker crane 5 includes a drive linear motor 10, a height movement mechanism, a first telescopic mechanism, a second telescopic mechanism, and a clamping mechanism. The drive linear motor 10 is driven and connected to the track 4. A stacker crane base plate 11 is provided on the drive linear motor 10. A processor 12 is provided on the stacker crane base plate 11. The height movement mechanism is provided on the stacker crane base plate 11. The processor 12 is electrically connected to the control center 9 and the drive linear motor 10. By setting the processor 12, the information of the control center 9 is processed to control the stacker crane 5 to work. With the help of the drive linear motor 10 and the track 4, the stacker crane 5 can move on the track 4.

[0036] Combined with appendix Figure 1-6 As shown, the height movement mechanism includes a lifting cylinder 13, which is mounted on the stacker base plate 11. The output end of the lifting cylinder 13 is connected to a lifting push rod 14, and a bearing plate 15 is mounted on the lifting push rod 14. The lifting cylinder 13 is electrically connected to the processor 12. By setting the lifting cylinder 13, the bearing plate 15 can be moved up and down under the action of the lifting cylinder 13, so that the bearing plate 15 can be height-adapted to the different storage spaces on the shelf 3 and the corresponding access platform 7.

[0037] Combined with appendix Figure 1-6As shown, the first telescopic mechanism includes two first strip-shaped slot seats 16, which are arranged in parallel and respectively disposed on the edge of the support plate 15. Each first strip-shaped slot seat 16 has a first cavity 17, and a first drive motor 18 is disposed within the first cavity 17. The output end of the first drive motor 18 is connected to a first screw 19, and a first movable seat 20 is threaded onto the first screw 19. The first movable seat 20 can slide relative to the first cavity 17. The processor 12 is electrically connected to the first drive motor 18. The second telescopic mechanism includes two second strip-shaped slot seats 21, which are arranged in parallel and respectively disposed on the two first movable seats 20. Each second strip-shaped slot seat 21 has a second cavity 22, and a second drive motor 23 is disposed within the second cavity 22. The output end of the second drive motor 23 is connected to a second screw 24, and a second movable seat is threaded onto the second screw 24. 25. The second movable seat 25 can slide relative to the second cavity 22. The processor 12 is electrically connected to the second drive motor 23. The clamping mechanism includes two mounting plates 26, which are respectively mounted on the two second movable seats 25. By setting the first drive motor 18, the first drive motor 18 can drive the first movable seat 20 to move towards the two ends of the first strip-shaped slot seat 16 through the first screw 19 under the action of the threaded connection. Similarly, by setting the second drive motor 23, the second drive motor 23 can drive the second movable seat 25 towards the two ends of the second strip-shaped slot seat 21 through the second screw 24 under the action of the threaded connection. Since both the first movable seat 20 and the second movable seat 25 can move, the mounting plates 26 can be inserted into the shelves 3 located on both sides of the track 4, so that the stacker crane 5 can store and retrieve items on the shelves 3 located on both sides of the track 4.

[0038] Combined with appendix Figure 3 As shown, a clamping cylinder 27 is provided on the mounting plate 26, and a clamping push rod 28 is connected to the output end of the clamping cylinder 27. A clamping plate 29 is provided on the clamping push rod 28. The processor 12 is electrically connected to the clamping cylinder 27. By setting the clamping cylinder 27, the clamping plate 29 can be moved. As the clamping plate 29 moves, the item can be clamped.

[0039] Combined with appendix Figure 1-2As shown, the encoder 30 is disposed on one side of the two stacker base plates 11 opposite each other. The encoder 30 is electrically connected to the processor 12. Since the encoder 30 is electrically connected to the processor 12, the encoder 30 can obtain the working information of the drive linear motor 10, so as to assist the control center 9 in setting the stroke of the stacker 5. Preferably, the processor 12 has a built-in alarm braking module. When the encoder 30 detects that the stacker 5 is too close to the limit switch 31, the encoder 30 transmits the information to the alarm braking module, the alarm braking module issues an alarm and brakes the movement of the corresponding stacker 5.

[0040] Combined with appendix Figure 1 As shown in Figure 7, the cold storage shell 1 also includes equipment to ensure the normal operation of the cold storage, including a refrigeration unit and a dehumidifier, which can also be adjusted through the control center 9.

[0041] Example 2:

[0042] Combined with appendix Figure 2 , 7As shown in Figure 8, a non-contact intelligent cold storage unit with multiple stacker cranes operating on a single track includes: a cold storage shell 1, shelves 3, a track 4, two stacker cranes 5, and a control center 9. The cold storage shell 1 has a freezing chamber 2. The shelves 3 and track 4 are both located within the freezing chamber 2. Specifically, the track 4 is located at the bottom center of the freezing chamber 2, and the shelves 3 are located on both sides of the track 4 within the freezing chamber 2. Both stacker cranes 5 are mounted on the track 4 and are drivenly connected to the track 4. An encoder 30 is installed on each stacker crane 5. The cold storage shell 1 has two entrances / exits 6. Two access platforms 7 are respectively located near the two entrances / exits 6 within the freezing chamber 2. The two stacker cranes 5... When the stacker cranes 5 are located at both ends of track 4, their positions correspond to the two entrances / exits 6 respectively, and the two access platforms 7 are located between the two entrances / exits 6 and their corresponding stacker cranes 5. Each of the two entrances / exits 6 is equipped with an electric sliding door 8 corresponding to its respective entrance / exit 6. The electric sliding door 8 is used to control the blocking of the corresponding entrance / exit 6. Preferably, the electric sliding door 8 includes a sliding door guide rail, a sliding door drive mechanism, and a sliding door. The sliding door guide rail and the sliding door drive mechanism are mounted on the cold storage shell 1 and located on the side of the corresponding entrance / exit 6. The sliding door is slidably connected to the sliding door guide rail, and the size of the sliding door corresponds to the entrance / exit 6. The sliding door drive mechanism is connected to the sliding door drive mechanism. The control center 9 is used to move the sliding door on the sliding door guide rail, so as to control the blocking of the corresponding entrance 6 by the sliding door. The control center 9 is set on the cold storage shell 1. The control center 9 is electrically connected to two electric sliding doors 8, two stacker cranes 5, and encoders 30 located on the two stacker cranes 5. The encoders 30 are electrically connected to the corresponding stacker cranes 5. Preferably, the control center 9 includes an operation panel and a control processing module. The control panel can be one or two. The operation panel is electrically connected to the control processing module. The control processing module is electrically connected to the two electric sliding doors 8, the two stacker cranes 5, and the encoders 30 located on the two stacker cranes 5. Since the shelf 3 is in the process of entering... The installation positions are determined, as are the positions of different storage locations on shelf 3, the length of track 4, and the initial positions of the two stacker cranes at the two ends of track 4. The correspondence between different positions on shelf 3 and stacker cranes 5 is set via the operation panel to allow for the allocation of stacker cranes 5 according to the location of items being retrieved. The working stroke of the electric sliding door 8 in conjunction with the stacker cranes 5 for storing and retrieving items is set. Because an encoder 30 is installed, it can monitor the stroke of the corresponding stacker crane 5. In this embodiment, no limit switch 31 is installed on track 4. During setting, the encoder 30 monitors the XYZ three-axis position information of the corresponding stacker crane 5 with itself as the origin in real time and transmits the collected position information to the control center 9.The control center 9 performs motion planning and coordinated control based on the position information of the two stacker cranes 5. By acquiring the position information of the two stacker cranes 5, the control center 9 can accurately determine the distance between them and their obstacle avoidance capabilities for interference monitoring. When the two stacker cranes 5 are too close, they can decelerate or stop using the corresponding position information to avoid collisions. Simultaneously, based on the position information, the control center 9 can make adjustments and optimizations to ensure more precise and smooth subsequent movement.

[0043] During the retrieval process, the control center 9 selects the location of the item to be retrieved. Taking the retrieval of two items as an example, let's say the two items are item one and item two. Item one is closest to one of the stacker cranes 5. The control center 9 selects item one and item two, and the stacker crane 5 closest to item one moves towards item one, retrieves item one, and moves it to the corresponding access platform 7 of the stacker crane 5 closest to item one. Simultaneously, the other stacker crane 5 retrieves item two. Since item one is already in a state of waiting to be retrieved by stacker crane 5 on the shelf 3, and item two is closest to the other stacker crane 5 at this time, the other stacker crane 5 retrieves item two and moves it to another access platform 7. When item one is placed on the corresponding access platform 7, the corresponding electric sliding door 8 releases its blockage on the corresponding access platform 7, allowing staff to remove the item from the access platform 7. When item two is placed on another corresponding access platform 7, the corresponding electric sliding door 8 releases its blockage on the corresponding access platform 7, allowing staff to remove the item from the access platform 7. After item one is removed, the electric sliding door 8 blocks the corresponding entrance 6. After item two is removed, the electric sliding door 8 blocks the corresponding entrance 6. When storing goods, taking two items as an example, the two items are placed on two different access platforms 7, and the corresponding stacker cranes 5 place the two items at the selected positions on the shelves 3. Then, the two stacker cranes 5 move to the end of the track 4.

[0044] Combined with appendix Figure 2-6 As shown in Figure 8, the stacker crane 5 includes a drive linear motor 10, a height movement mechanism, a first telescopic mechanism, a second telescopic mechanism, and a clamping mechanism. The drive linear motor 10 is driven and connected to the track 4. A stacker crane base plate 11 is provided on the drive linear motor 10. A processor 12 is provided on the stacker crane base plate 11. The height movement mechanism is provided on the stacker crane base plate 11. The processor 12 is electrically connected to the control center 9 and the drive linear motor 10. By setting the processor 12, the information of the control center 9 is processed to control the stacker crane 5 to work. With the help of the drive linear motor 10 and the track 4, the stacker crane 5 can move on the track 4.

[0045] Combined with appendix Figure 2-6 As shown in Figure 8, the height movement mechanism includes a lifting cylinder 13, which is mounted on the stacker base plate 11. The output end of the lifting cylinder 13 is connected to a lifting push rod 14, and a bearing plate 15 is mounted on the lifting push rod 14. The lifting cylinder 13 is electrically connected to the processor 12. By setting the lifting cylinder 13, the bearing plate 15 can be moved up and down under the action of the lifting cylinder 13, so that the bearing plate 15 can be height-adapted to the different storage spaces on the shelf 3 and the corresponding access platform 7.

[0046] Combined with appendix Figure 2-6 As shown in Figure 8, the first telescopic mechanism includes two first strip-shaped slot seats 16, which are arranged in parallel and respectively disposed on the edge of the support plate 15. A first cavity 17 is formed within each first strip-shaped slot seat 16, and a first drive motor 18 is disposed within the first cavity 17. A first screw 19 is connected to the output end of the first drive motor 18, and a first movable seat 20 is threaded onto the first screw 19. The first movable seat 20 can slide relative to the first cavity 17. The processor 12 is electrically connected to the first drive motor 18. The second telescopic mechanism includes two second strip-shaped slot seats 21, which are arranged in parallel and respectively disposed on the two first movable seats 20. A second cavity 22 is formed within each second strip-shaped slot seat 21, and a second drive motor 23 is disposed within the second cavity 22. A second screw 24 is connected to the output end of the second drive motor 23, and a second movable seat 20 is threaded onto the second screw 24. The second movable seat 25 is slidable relative to the second cavity 22. The processor 12 is electrically connected to the second drive motor 23. The clamping mechanism includes two mounting plates 26, which are respectively mounted on the two second movable seats 25. By setting a first drive motor 18, the first drive motor 18 can drive the first movable seat 20 to move towards the two ends of the first strip-shaped slot seat 16 through the first screw 19 under the action of the threaded connection. Similarly, by setting a second drive motor 23, the second drive motor 23 can drive the second movable seat 25 towards the two ends of the second strip-shaped slot seat 21 through the second screw 24 under the action of the threaded connection. Since both the first movable seat 20 and the second movable seat 25 can move, the mounting plates 26 can be inserted into the shelves 3 located on both sides of the track 4, so that the stacker crane 5 can store and retrieve items on the shelves 3 located on both sides of the track 4.

[0047] Combined with appendix Figure 3As shown, a clamping cylinder 27 is provided on the mounting plate 26, and a clamping push rod 28 is connected to the output end of the clamping cylinder 27. A clamping plate 29 is provided on the clamping push rod 28. The processor 12 is electrically connected to the clamping cylinder 27. By setting the clamping cylinder 27, the clamping plate 29 can be moved. As the clamping plate 29 moves, the item can be clamped.

[0048] Combined with appendix Figure 2 , 8 As shown, the encoder 30 is disposed on one side of the two stacker base plates 11. The encoder 30 is electrically connected to the processor 12. Since the encoder 30 is electrically connected to the processor 12, the encoder 30 can obtain the working information of the drive linear motor 10, so as to assist the control center 9 in setting the stroke of the stacker 5. Preferably, the processor 12 has a built-in alarm braking module. When the encoder 30 detects that the two stackers 5 are too close, the encoder 30 transmits the information to the alarm braking module, the alarm braking module issues an alarm and brakes the movement of the corresponding stacker 5.

[0049] Combined with appendix Figure 7 As shown in Figure 8, the cold storage shell 1 also includes equipment to ensure the normal operation of the cold storage, including a refrigeration unit and a dehumidifier, which can also be adjusted through the control center 9.

[0050] Working principle: When it is necessary to retrieve items from shelf 3, the stacker crane 5 moves to the corresponding item position on shelf 3 with the help of control center 9, retrieves and moves the item, and places it on the corresponding access platform 7 of stacker crane 5. The electric sliding door 8 corresponding to the entrance 6 of access platform 7 is released from blocking entrance 6. The staff takes the item from access platform 7 through entrance 6. Then the electric sliding door 8 blocks entrance 6. When storing goods, the electric sliding door 8 is released from blocking the corresponding entrance 6 with the help of control center 9. The staff places the item on access platform 7, and then the corresponding stacker crane 5 retrieves and moves the item to the selected empty position on shelf 3.

[0051] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A non-contact intelligent cold storage unit with multiple stacker cranes operating on a single rail, comprising: The cold storage enclosure (1), shelves (3), rails (4), two stacker cranes (5), and control center (9) are characterized by: The cold storage shell (1) has a freezing chamber (2) inside. The shelves (3) and the track (4) are all located inside the freezing chamber (2). The control center (9) is located on the cold storage shell (1). The two stacker cranes (5) are both located on the track (4) and are driven by the track (4). The two stacker cranes (5) are electrically connected to the control center (9). The cold storage shell (1) has two entrances (6). When the two stacker cranes (5) are located at the two ends of the track (4), the positions of the two stacker cranes (5) correspond to the two entrances (6). The stacker (5) includes a drive linear motor (10), a height movement mechanism, a first telescopic mechanism, a second telescopic mechanism, and a clamping mechanism. The drive linear motor (10) is driven and connected to the track (4). A stacker base plate (11) is provided on the drive linear motor (10). A processor (12) is provided on the stacker base plate (11). The height movement mechanism is provided on the stacker base plate (11). The processor (12) is electrically connected to the control center (9) and the drive linear motor (10) respectively. The first telescopic mechanism includes two first strip slot seats (16), which are arranged in parallel and respectively located at the edge of the support plate (15). A first slot cavity (17) is opened in the first strip slot seat (16), and a first drive motor (18) is provided in the first slot cavity (17). A first screw (19) is connected to the output end of the first drive motor (18), and a first movable seat (20) is threaded on the first screw (19). The first movable seat (20) can slide relative to the first slot cavity (17). The processor (12) is electrically connected to the first drive motor (18). The second telescopic mechanism includes two second strip-shaped slot seats (21), which are arranged in parallel on two first movable seats (20). A second slot cavity (22) is opened in the second strip-shaped slot seat (21), and a second drive motor (23) is arranged in the second slot cavity (22). A second screw (24) is connected to the output end of the second drive motor (23), and a second movable seat (25) is threaded on the second screw (24). The second movable seat (25) can slide relative to the second slot cavity (22). The processor (12) is electrically connected to the second drive motor (23). The clamping mechanism includes two mounting plates (26), which are respectively mounted on two second movable seats (25). A clamping cylinder (27) is provided on the mounting plate (26). A clamping push rod (28) is connected to the output end of the clamping cylinder (27). A clamping plate (29) is provided on the clamping push rod (28). The processor (12) is electrically connected to the clamping cylinder (27). When multiple items need to be retrieved from the shelf (3), the control center (9) controls the stacker (5) closest to one of the items on the shelf (3) to start working, based on the position of the items on the shelf (3), to pick up the item and move it to the corresponding entrance (6) of the stacker (5). At the same time, another stacker (5) moves to the position of another item on the shelf (3) under the action of the control center (9), and picks up the item and moves it to the corresponding entrance (6) of the stacker (5).

2. The non-contact intelligent cold storage facility with multiple stacker cranes operating on a single track according to claim 1, characterized in that: The track (4) is located at the bottom center of the freezing chamber (2), the shelf (3) is located on both sides of the track (4) inside the freezing chamber (2), the stacker (5) is equipped with an encoder (30), and limit switches (31) are provided at both ends and in the middle of the track (4).

3. A non-contact intelligent cold storage facility with multiple stacker cranes operating on a single track according to claim 2, characterized in that: Two access platforms (7) are respectively provided in the freezing chamber (2) near the two entrances (6). When the two stackers (5) are located at the two ends of the track (4), the positions of the two stackers (5) correspond to the two entrances (6) respectively, and the two access platforms (7) are located between the two entrances (6) and the corresponding stackers (5).

4. A non-contact intelligent cold storage facility with multiple stacker cranes operating on a single track according to claim 2, characterized in that: Each of the two entrances (6) is provided with an electric sliding door (8) corresponding to the two entrances (6). The electric sliding door (8) is used to control the blocking of the corresponding entrance (6). The control center (9) is electrically connected to the two electric sliding doors (8) and the encoder (30) located on the two stackers (5). The encoder (30) is electrically connected to the corresponding stacker (5).

5. A non-contact intelligent cold storage facility with multiple stacker cranes operating on a single track according to claim 1, characterized in that: The height movement mechanism includes a lifting cylinder (13), which is mounted on the stacker base plate (11). The output end of the lifting cylinder (13) is connected to a lifting push rod (14), and a bearing plate (15) is mounted on the lifting push rod (14). The lifting cylinder (13) is electrically connected to the processor (12).

6. A non-contact intelligent cold storage facility with multiple stacker cranes operating on a single track according to claim 2, characterized in that: The encoder (30) is disposed on one side of the two stacker base plates (11) opposite each other, and the encoder (30) is electrically connected to the processor (12).

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