Track rack, shifting automatic storage logistics system and conveying method thereof

Abstract

The present invention discloses a track rack, a shifting automatic warehousing logistics system and a conveying method thereof. The track rack is a shifting track rack, which can actively reach the storage and retrieval station to improve the efficiency of entering and leaving the warehouse; a plurality of rectangular track warehouses are flexibly and densely laid out to improve the utilization rate of warehouse space, meet the convenience of storing and retrieving goods from the inside, outside, front end and rear end of the track rack, and solve the problem of storing and retrieving deep goods.

Description

Technical Field

[0001] The present invention relates to the technical field of logistics and warehousing, and in particular to a track shelf, a shifting automatic warehousing and logistics system and a conveying method thereof. Background Art

[0002] The invention patent ZL201611050224.9 of "Warehouse Conveying System and Conveying Method Thereof" once published a technology of a modern warehouse conveying system and conveying method thereof consisting of a horizontal track and a plurality of vertical tracks connected to the horizontal track and a cargo train running on the track, which is more practical in the automatic storage of large agricultural products and grouped goods. However, when the frequency of entering and leaving the warehouse is high, the train transferred to the horizontal track needs to wait in line. When used for the storage and retrieval of bulk goods, the storage and retrieval efficiency is not satisfactory. Other forms of automatic warehouses are mostly fixed shelves, and the goods are transported to the designated location by transmission belts and elevators, which have the problems of high construction cost and low space utilization. There is also a form of storing and retrieving goods by AGV (Automated Guided Vehicle, referred to as AGV) automatic vehicles moving shelves, but because of the need to leave lanes for AGV automatic vehicles, the operating efficiency and warehouse space utilization are still obviously insufficient. Summary of the invention

[0003] In order to overcome the defects of the prior art, a rail rack, a shifting automatic warehousing and logistics system and a conveying method thereof are now provided, so as to be more conducive to the rapid retrieval and storage of bulk and small items in an automated warehousing and logistics system, thereby improving retrieval efficiency, saving space, saving labor and ensuring safety.

[0004] In order to achieve the above object, a track rack is provided, comprising:

[0005] A rectangular ground rail structure, comprising an inner ring rail and an outer ring rail arranged concentrically, wherein the inner ring rail and the outer ring rail respectively have two long side segments arranged along a first horizontal direction and two short side segments arranged along a second horizontal direction, wherein the short side segments are connected between two ends of the two long side segments, and the second horizontal direction is perpendicular to the first horizontal direction;

[0006] A plurality of storage racks, each of which has a first side and a second side opposite to each other in the first horizontal direction and a third side and a fourth side opposite to each other in the second horizontal direction, the first side and the second side of each of which are respectively provided with first rollers for traveling on the long side segments of the inner ring track and the outer ring track, the third side and the fourth side of each of which are respectively provided with second rollers for traveling on the short side segments of the inner ring track and the outer ring track, a gap is formed between at least two of the storage racks, and the length of the gap is adapted to the length of one of the storage racks;

[0007] A first driving device for driving the storage rack to travel a preset distance along the long side section, each of the long side sections being equipped with the first driving device;

[0008] A second driving device for driving the storage rack to travel along the short side segments for a preset distance, each short side segment being provided with the second driving device; and

[0009] A first controller is connected to the first driving device and the second driving device. When the second roller moves to the end of the long side segment, the first controller turns off the first driving device and turns on the second driving device to make the storage rack move along the short side segment. When the first roller moves to the end of the short side segment, the first controller turns off the second driving device and turns on the first driving device to make the storage rack move along the long side segment.

[0010] Furthermore, a limiting wheel rim is formed on the inner side of each of the first rollers, and a first supporting plate for supporting the limiting wheel rim of the second roller is installed between the long side segment of the inner ring track and the short side segment of the outer ring track. When the storage rack moves to the end of the long side segment, the first supporting plate supports the second roller on the suspended side of the storage rack.

[0011] Furthermore, a limiting rim is formed on the inner side of the second roller, and a second supporting plate formed with a limiting rim for supporting the first roller is installed between the short side segment of the inner ring track and the long side segment of the outer ring track. When the storage rack moves to the end of the short side segment, the second supporting plate supports the first roller on the suspended side of the storage rack.

[0012] Furthermore, it also includes a rectangular hanging rail installed above the storage rack, the rectangular hanging rail is concentrically arranged with the inner ring track, a slide groove is formed at the bottom of the rectangular hanging rail, the slide groove is arranged in a circle along the length direction of the rectangular hanging rail, and the top of the storage rack is connected to a guide rod, and the top of the guide rod is slid in the slide groove.

[0013] Furthermore, the rectangular hanging rail is arranged in the middle of the outer ring rail and the inner ring rail.

[0014] Furthermore, the distance between the long side segment of the inner ring track and the long side segment of the outer ring track is adapted to the wheelbase between the second roller on the third side of the storage rack and the second roller on the fourth side of the storage rack.

[0015] Furthermore, the distance between the short side segment of the inner ring track and the short side segment of the outer ring track is adapted to the wheelbase between the first roller on the first side of the storage rack and the first roller on the second side of the storage rack.

[0016] The present invention provides a shifting automatic warehousing logistics system, comprising:

[0017] Linear cross-belt sorter;

[0018] A guide rail assembly comprises three guide rails arranged in the same direction, and a plurality of sorting ports of the linear cross-belt sorter are arranged along the length direction of the guide rails;

[0019] An electric conveyor belt, slidably mounted on a guide rail of the guide rail assembly on a side close to the linear cross-belt sorter;

[0020] An electric stacking bin is slidably mounted on a guide rail in the middle of the guide rail assembly;

[0021] A cargo bin mounted on a side of the guide rail assembly away from the linear cross-belt sorter, comprising a plurality of rail shelves;

[0022] A storage and retrieval mechanism for storing goods in the electric stacking bin in the storage rack of the rail rack or retrieving goods in the storage rack to the electric stacking bin, a guide rail slidably disposed on a side of the guide rail assembly close to the bin; and

[0023] The second controller is connected to the linear cross-belt sorter, the electric conveyor belt, the electric stacking bin, and the storage and retrieval mechanism.

[0024] The present invention provides a conveying method of a shift-type automatic warehousing logistics system, comprising the following steps:

[0025] The second controller starts the linear cross-belt sorter, so that the linear cross-belt sorter transports the goods to be sorted to a plurality of sorting ports of the linear cross-belt sorter respectively;

[0026] The second controller controls the electric conveyor belt and the electric stacking bin to move to the corresponding sorting port of the linear cross-belt sorting machine, and the electric conveyor belt transports the goods at the sorting port to the electric stacking bin;

[0027] After the goods are transported to the electric stacking warehouse, the second controller generates a storage signal and sends the storage signal to a first controller of a rail rack in the warehouse;

[0028] The first controller activates a plurality of first driving devices and a plurality of second driving devices of the track rack, so that a storage rack of the track rack is parked at a receiving point;

[0029] After a storage rack is parked at the receiving point, the storage and retrieval mechanism takes out the goods in the electric stacking bin and stores them in the storage rack at the receiving point;

[0030] After the goods are stored in the storage rack, the second controller receives a pick-up instruction, generates a warehouse-out signal based on the pick-up instruction, and sends the warehouse-out signal to the first controller of the rail rack storing the goods of the pick-up instruction;

[0031] The first controller activates a plurality of first driving devices and a plurality of second driving devices of the track rack, so that the storage rack storing the goods of the pickup instruction is parked at the receiving point;

[0032] After the storage rack storing the goods of the pickup instruction is parked at the receiving point, the storage and retrieval mechanism takes out the goods from the storage rack parked at the receiving point and places them in the electric stacking bin;

[0033] After the goods are placed in the electric stacking bin, the second controller controls the electric stacking bin with the goods placed therein to move to a pickup point.

[0034] The beneficial effects of the present invention are that the rail rack of the present invention is used to store goods, so that the goods are neatly stored and the entry and exit sorting is efficient, and the rail rack realizes the conversion of the inside and outside, front and rear ends of the storage rack during the movement, so that the storage and retrieval of the goods is convenient and efficient, and the goods can be accessed from the inside, outside, front or rear end of the storage rack, and it is convenient and fast. The rail rack of the present invention changes the traditional simple track, circular track or elliptical track, and takes the rectangular ground rail structure as the minimum operating unit, which can be freely combined and matched, centrally managed, and flexibly scheduled, breaking the traditional technical barriers of storage before retrieval. In addition, each storage rack of the rail rack of the present invention moves independently, which is more conducive to the automated warehousing and logistics system for rapid access and storage of loose parts and small items in large quantities, improving access efficiency, saving space, saving labor, and ensuring safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0036] Figure 1 It is a schematic diagram of the structure of a rail rack according to an embodiment of the present invention.

[0037] Figure 2 The figure is a schematic structural diagram of one end of a rail rack according to an embodiment of the present invention.

[0038] Figure 3 Schematic diagram of the structure of a rectangular ground rail structure according to an embodiment of the present invention.

[0039] Figure 4 Schematic diagram of the structure of a storage rack according to an embodiment of the present invention.

[0040] Figure 5Schematic diagram of the structure of the second roller according to an embodiment of the present invention.

[0041] Figure 6 FIG. 4 is a side view of the second roller according to an embodiment of the present invention.

[0042] Figure 7 It is a schematic diagram of the structure of a shifting automatic warehousing logistics system according to an embodiment of the present invention.

[0043] Figure 8 Schematic diagram of the structure of the deposit and access mechanism of an embodiment of the present invention. DETAILED DESCRIPTION

[0044] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant invention, rather than to limit the invention. It is also necessary to explain that, for ease of description, only the parts related to the invention are shown in the accompanying drawings.

[0045] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0046] Reference Figures 1 to 8 As shown, the present invention provides a track rack, comprising: a rectangular ground rail structure 11, a plurality of storage racks 12, a plurality of first driving devices, a plurality of second driving devices and a first controller.

[0047] Specifically, the rectangular ground rail structure 11 includes an inner ring track 111 and an outer ring track 12. The inner ring track 111 and the outer ring track 12 are concentrically arranged.

[0048] The inner ring track 111 and the outer ring track 12 are rectangular in shape. The inner ring track 111 and the outer ring track 12 respectively have two long side segments arranged along a first horizontal direction and two short side segments arranged along a second horizontal direction, wherein the short side segments are connected between the two ends of the two long side segments, and the second horizontal direction is perpendicular to the first horizontal direction.

[0049] In this embodiment, the inner ring track 111 has two long side segments a arranged along the first horizontal direction and two short side segments b arranged along the second horizontal direction. The short side segments b are connected between the two ends of the two long side segments a. The outer ring track 12 has two long side segments a' arranged along the first horizontal direction and two short side segments b' arranged along the second horizontal direction. The short side segments b' are connected between the two ends of the two long side segments '.

[0050] The storage rack 12 has a first side and a second side opposite to each other in the first horizontal direction and a third side and a fourth side opposite to each other in the second horizontal direction. The first side and the second side of the storage rack are respectively installed with first rollers 121 for traveling on the short side segments of the inner ring track and the outer ring track. The third side and the fourth side of the storage rack are respectively installed with second rollers 122 for traveling on the long side segments of the inner ring track and the outer ring track. A gap is formed between at least two storage racks, and the length of the gap is adapted to the length of one storage rack, that is, a gap that can accommodate one storage rack is formed between the two storage racks.

[0051] Specifically, a first roller 121 and a second roller 122 are installed at the bottom of the storage rack 12. The first roller is only used to travel on the short side segments of the inner ring track 111 and the outer ring track 12. The second roller is only used to travel on the long side segments of the inner ring track 111 and the outer ring track 12. Only one of the first roller and the second roller is in motion at the same time.

[0052] The first controller is connected to the first driving device and the second driving device.

[0053] The first driving device is used to push the storage rack to travel a preset distance along the long side segment. The first driving device is installed on the long side segment of the rectangular ground rail structure 11. Specifically, the first driving device is installed between the long side segments of the outer ring track and the inner ring track of the rectangular ground rail structure 11. A first driving device is installed between each long side segment. In this embodiment, a plurality of first driving devices are installed between each long side segment, and the plurality of first driving devices are continuously arranged along the length direction of the rectangular ground rail structure 11.

[0054] The second driving device is used to push the storage rack to walk along the short side segment for a preset stroke. The second driving device is installed on the short side segment of the rectangular ground rail structure 11. Specifically, the second driving device is installed between the short side segments of the outer ring track and the inner ring track of the rectangular ground rail structure 11. A second driving device is installed between each short side segment. In this embodiment, a plurality of second driving devices are installed between each short side segment, and the plurality of second driving devices are continuously arranged along the length direction of the rectangular ground rail structure 11.

[0055] An annular installation space is formed between the outer ring track and the inner ring track of the rectangular ground rail structure of the track shelf of the present invention, and the annular installation space is divided into multiple space units. The multiple space units are arranged along the circumferential direction of the rectangular ground rail structure. A first drive device or a second drive device is installed in each space unit. Specifically, the first drive device is installed in the multiple space units in the long side segment, and the second drive device is installed in the multiple space units in the short side segment. The storage rack enters the next space unit under the action of the gap thrust of the first driver or the second driver in one space unit, and then continues to move forward under the action of the gap thrust of the first driver or the second driver in the next space unit. Among them, the thrust direction of the first driver is set in the same direction as the length direction of the long side segment, and the thrust direction of the second driver is set in the same direction along the length direction of the short side segment. In this embodiment, the thrust direction of the first driver is set perpendicular to the thrust direction of the second driver. At the corner position of the rectangular ground rail structure, the thrust direction of the first driver and the second driver is converted, so as to realize the vertical reversal of the storage rack on the rectangular track structure.

[0056] See also Figure 1 and Figure 2 As shown, when the second roller moves on a long side segment (that is, the first driving device pushes the storage rack to move along the length direction of the long side segment), and when the second roller moves to the end of the long side segment ( Figure 2 When the storage rack is in the state shown in the figure, the first controller turns off the first driving device and then turns on the second driving device, so that the storage rack moves along the short side section without rotating, and the first roller moves on the short side section, so that the storage rack can be vertically reversed in situ at the end of the rectangular ground rail structure without rotating. When the first roller moves on the short side section, and when the first roller moves to the end of the short side section, the first controller turns off the second driving device and then turns on the first driving device, so that the first driving device pushes the storage rack to move along the long side section, and the second roller moves on the other long side section of the rectangular ground rail structure, thereby realizing the conversion of the original inner side (the side facing the inner ring track) of the storage rack to the outer side (the side facing the outer ring track); on the other hand, when the storage rack moves on the short side section, the front end and the rear end (in this embodiment, the front end and the rear end refer to the "front" and "rear" in the direction of travel of the storage rack) of the storage rack can be stored and retrieved, so that the storage rack can store and retrieve goods on all four sides, and the storage and retrieval method is flexible, convenient and efficient.

[0057] The rail rack of the present invention realizes the conversion of the inside and outside, front and rear ends of the storage rack during the movement, making the storage and retrieval of goods convenient and efficient. Goods can be stored and retrieved from the inside, outside, front or rear end of the storage rack, and it is convenient and fast. The rail rack of the present invention changes the traditional simple track, circular track or elliptical track, and takes the rectangular ground rail structure as the minimum operating unit, which can be freely combined and matched, centrally managed, and flexibly scheduled, breaking the traditional technical barriers of storing first and then retrieving. In addition, each storage rack of the rail rack of the present invention moves independently, which is more conducive to the automated shifting automatic warehousing and logistics system for rapid storage and retrieval of loose parts and small items in large quantities, improving storage and retrieval efficiency, saving space, saving labor, and ensuring safety.

[0058] In this embodiment, the storage rack is in the shape of a rectangular parallelepiped, and the four sides of the storage rack are all open sides. Specifically, the storage rack 12 has a first side (i.e., the front end of the storage rack) and a second side (i.e., the rear end of the storage rack) opposite to each other in the first horizontal direction, and a third side and a fourth side opposite to each other in the second horizontal direction. Figure 4 As shown, the storage rack includes a rectangular base and four upright posts arranged at the corners of the rectangular base. In this embodiment, the rectangular base is square. Multiple layers of storage grids are connected between the four upright posts.

[0059] As a preferred embodiment, the electric stacking bin includes a stacking bin body and an electric support platform slidably arranged on the guide rail 3. The structure of the stacking bin body is the same as that of the storage rack, so the specific structure of the stacking bin body is not repeated here. A roller is installed at the bottom of the electric support platform, and a driving motor is installed on the electric support platform, and the driving motor is connected to the roller by transmission. The stacking bin body is installed on the electric support platform.

[0060] The first roller and the second roller are installed at the bottom of the rectangular base. Specifically, the first and second sides of the rectangular base are rotatably installed with a plurality of second rollers 122, and the third and fourth sides of the rectangular base are rotatably installed with a plurality of first rollers 121. Figure 2 In the state shown, the plurality of second rollers 122 are rotatably mounted on the third side (ie, the inner side of the storage rack) and the fourth side (ie, the outer side of the storage rack) of the storage rack 12 respectively.

[0061] The first drive device and the second drive device drive the intermittent displacement of the storage rack. The first drive device and the second drive device are pneumatic drive devices, hydraulic drive devices, or electric drive devices. In this embodiment, the first drive device and the second drive device are double-rod hydraulic cylinders. As a preferred embodiment, the double-rod hydraulic cylinder is installed between the outer ring track and the inner ring track in a flippable manner. When the storage rack is placed in a grid space unit, the double-rod hydraulic cylinder in this grid space unit applies a forward thrust to the storage rack, so that the storage rack enters the next grid space unit. Under the control of the first controller, each time the storage rack is driven to move the distance of a car or the distance of a car plus an interval. When installing the storage rack in a rectangular ground rail structure, at least one storage rack position must be reserved without placing the storage rack. The first drive device and the second drive device can realize bidirectional drive.

[0062] As a preferred embodiment, the first drive motor and the second drive motor are stepping motors. The first drive motor and the second motor are forward and reverse motors to achieve forward and backward bidirectional driving of the storage rack.

[0063] As a preferred embodiment, the inner sides of the first roller 121 and the second roller 122 are respectively formed with a limited wheel rim c. In some embodiments, the first roller and the second roller travel on a rectangular ground rail structure. The rectangular ground rail structure is installed on a platform, and the platform is supported on the limited wheel rim, that is, the height of the rectangular ground rail structure is equal to the difference between the limited wheel rim and the diameter of the first roller or the second roller. In this embodiment, a first support plate 114 for supporting the limited wheel rim c of the second roller 122 is installed between the long side segment a of the inner ring track 111 and the short side segment b' of the outer ring track 12. A second support plate 113 formed with a limited wheel rim c for supporting the first roller 121 is installed between the short side segment b of the inner ring track 111 and the long side segment a' of the outer ring track 12. The first support plate and the second support plate are used to continue the inner ring track. When the storage rack moves to the end of the rectangular ground rail structure, the first support plate and the second support plate are used to support the first roller and the second roller of the storage rack to prevent the storage rack from tipping over.

[0064] See also Figure 2, the storage rack moves to the end of the long side of the rectangular ground rail structure under the drive of the first driving device, the second roller on the outer side of the storage rack (the side facing away from the inner ring track) moves on the outer ring track, and the second roller on the inner side of the storage rack (the side facing the inner ring track) is suspended. At this time, the first support plate 114 is supported on the limiting rim of the second roller on the inner side of the storage rack, and the second support plate 113 is supported on the limiting rim of the first roller on the side of the short side of the storage rack facing the inner ring track. When the first driving device is turned off and the second driving device is turned on, the second driving device pushes the storage rack so that the first roller on one side of the storage rack moves on the short side of the outer ring track, and the first roller on the other side of the storage rack moves on the second support plate.

[0065] As a preferred embodiment, the rail shelf of the present invention further includes a rectangular hanging rail 14 mounted above the storage rack 12. The rectangular hanging rail 14 is arranged concentrically with the inner ring track 111. A slide groove is formed at the bottom of the rectangular hanging rail 14. The slide groove is arranged in a circle along the length direction of the rectangular hanging rail 14. The top of the storage rack 12 is connected to a guide rod 13. The top of the guide rod 13 is slidably arranged in the slide groove.

[0066] In some embodiments, a universal ball is hinged on the top of the guide rod, and the universal ball is accommodated in the slide groove. The opposite sides of the slot of the slide groove form limited flanges, and the top end of the guide rod is inserted between the limited flanges on both sides of the slot of the slide groove and connected to the universal ball accommodated in the slide groove.

[0067] In this embodiment, the rectangular hanging rail 14 is arranged in the middle of the outer ring track 12 and the inner ring track 111 .

[0068] The present invention provides a shifting automatic warehousing logistics system, comprising: a cargo warehouse 1, a linear cross-belt sorter 2, a guide rail assembly, an electric stacking warehouse 5, a storage and retrieval mechanism 6 and a second controller.

[0069] The linear cross-belt sorting machine of the shifting automatic storage logistics system of the present invention has the characteristics of bidirectional operation, dynamic diversion, confluence, throttling and interception at any position, and its intelligence level is much higher than that of traditional belt lines and roller lines, and its flow adaptability and processing capabilities are greatly improved.

[0070] The guide rail assembly includes three guide rails arranged in the same direction. Specifically, a plurality of sorting ports of the linear cross-belt sorter 2 are arranged along the length direction of the guide rail assembly.

[0071] A plurality of electric conveyor belts 4 are movably mounted on a guide rail on one side of the guide rail assembly close to the sorting port.

[0072] A plurality of electric stacking bins 5 are movably mounted on a guide rail 3 in the middle of the guide rail assembly. Specifically, the electric stacking bin comprises a stacking bin body and an electric movable support platform. Among them, a plurality of electric movable support platforms are mounted on the guide rail 3, and the stacking bin body is mounted on the electric movable support platform. The electric stacking bin is used as a temporary turnover storage for goods.

[0073] The cargo warehouse is arranged on one side of the guide rail assembly away from the linear cross belt sorter. The cargo warehouse 1 comprises a plurality of rail shelves 11. The plurality of rail shelves are preferably arranged at intervals along a horizontal direction.

[0074] A plurality of storage and retrieval mechanisms 6 are movably mounted on a guide rail of the guide rail assembly on a side close to the cargo hold.

[0075] The storage and retrieval mechanism 6 is used to store the goods in the electric stacking warehouse 5 in the storage rack 12 of the rail shelf 11 or to retrieve the goods in the storage rack 12 to the electric stacking warehouse 5. The storage and retrieval mechanism 6 is installed between the guide rail and the warehouse 1. In this embodiment, the storage and retrieval mechanism includes a telescopic roller conveyor 61, a support frame 62 and a lifting device.

[0076] Specifically, the support frame is slidably mounted on a guide rail on a side of the guide rail assembly close to the cargo warehouse. In some embodiments, an electric support platform is mounted on the guide rail, a roller is mounted on the bottom of the electric support platform, a drive motor is mounted on the electric support platform, and the drive motor is transmission-connected to the roller. The support frame is mounted on the electric support platform. The second controller controls the forward and reverse rotation of the drive motor of the electric support platform to make the support frame move back and forth along the length direction of the guide rail. The support frame includes two columns, and vertical slide grooves are formed on opposite sides of the two columns. The telescopic roller conveyor is arranged between the two columns. The telescopic roller conveyor is arranged in a horizontal direction. The opposite ends of the telescopic roller conveyor are respectively aligned with the cargo warehouse and the linear cross-belt sorter. The lifting device is mounted on the column and connected to the telescopic roller conveyor. The lifting device is used to lift and lower the telescopic roller conveyor in the vertical direction. The lifting device is an electric hydraulic jack.

[0077] The second controller is connected to the linear cross belt sorter 2, the electric conveyor belt 4, the electric mobile support platform of the electric stacker, and the access mechanism 6. The second controller signal is connected to the telescopic roller conveyor, the drive motor and the lifting device of the access mechanism.

[0078] When the storage and retrieval mechanism of the shifting automatic storage and logistics system of the present invention stores and retrieves goods, the second controller controls the driving motor of the electric support platform under the support frame, the electric stacking warehouse and the corresponding rail shelf of the warehouse, so that the two ends of the telescopic roller conveyor of the storage and retrieval mechanism are respectively aligned with an electric stacking warehouse and a rail shelf parked at the receiving point of the warehouse. The telescopic roller conveyor has a relative input end and an output end. When the goods of the electric stacking warehouse are taken out and put into the rail shelf, the second controller controls the input end of the telescopic roller conveyor to extend and extend to the bottom of the storage grid of the stacking warehouse body of the electric stacking warehouse, and at the same time, the output end of the telescopic roller conveyor extends and extends to the bottom of the storage grid of the storage rack. The second controller controls the lifting device to lift the telescopic roller conveyor, so that the input end of the telescopic roller conveyor abuts against the bottom of the storage grid of the stacking warehouse body and a roller of the input end of the telescopic roller conveyor passes through the gap of the storage grid and abuts against the goods of the storage grid of the stacking warehouse body, and the output end of the telescopic roller conveyor abuts against the bottom of the storage grid of the storage rack. The second controller starts the telescopic roller conveyor, and the roller of the telescopic roller conveyor rotates to take the goods on the storage grille from the electric stacking bin and transport them to the storage grille of the storage rack of the rail rack, completing the storage of the goods. Conversely, the same principle is to take the goods from the storage grille of the storage rack of the rail rack and place them on the storage grille of the stacking bin body of the electric stacking bin, completing the retrieval of the goods.

[0079] The present invention provides a conveying method for a shift-type automatic warehousing logistics system, comprising the following steps of cargo storage and cargo extraction.

[0080] Specifically, the cargo storing step includes steps S1 to S5; and the cargo retrieving step includes steps S6 to S9.

[0081] S1: The second controller starts the linear cross-belt sorter 2, so that the linear cross-belt sorter 2 transports the goods to be sorted to the multiple sorting ports of the linear cross-belt sorter 2 respectively.

[0082] S2: The second controller controls the electric conveyor belt 4, the electric stacking bin 5, and the storage and retrieval mechanism 6 to move to the corresponding sorting ports of the linear cross-belt sorting machine respectively, and the electric conveyor belt 4 transports the goods at the sorting port to the electric stacking bin 5.

[0083] S3: After the goods are transported to the electric stacking warehouse 5 , the second controller generates a storage signal and sends the storage signal to the first controller of a rail rack 11 in the warehouse 1 .

[0084] S4: The first controller starts the first driving device and the second driving device of the plurality of storage racks 12 of the track rack 11, so that one storage rack 12 is parked at the receiving point.

[0085] S5: After a storage rack 12 is parked at the receiving point, the second controller controls the storage and retrieval mechanism 6 to take out the goods in the electric stacking bin 5 and store them in the storage rack 12 at the receiving point.

[0086] In this embodiment, when goods need to be stored in the warehouse, the goods are placed on the linear cross-belt sorter. The barcode of the goods is scanned and identified on the linear cross-belt sorter and sent to the second controller, and then the second controller automatically sends it to the corresponding electric conveyor belt according to the bin code queried by the code. The electric conveyor belt delivers the goods to the corresponding electric stack warehouse. While scanning the code for identification, the second controller controls the electric movable support platform of the corresponding electric stack warehouse to move to the output end of the electric conveyor belt. After the electric stack warehouse receives the goods at the output end of the electric conveyor belt, the second controller sends a warehousing signal to notify the storage and retrieval mechanism to receive the goods and the first controller of the corresponding track shelf of the warehouse. After the storage rack of the corresponding track shelf is in place, the electronic tag is identified and the inventory information is written in the first controller, and the goods are moved to the designated position of the track shelf at the same time.

[0087] S6: After the goods are stored in the storage rack 12, the second controller receives a pick-up instruction, generates a warehouse-out signal based on the pick-up instruction, and sends the warehouse-out signal to the first controller of the track rack 11 storing the goods of the pick-up instruction.

[0088] S7: The first controller starts the first driving device and the second driving device of the plurality of storage racks 12 of the track rack 11, so that the storage racks 12 storing the goods ordered by the pick-up order are parked at the receiving point.

[0089] S8: After the storage rack 12 storing the goods ordered for picking up is parked at the receiving point, the second controller controls the storage and retrieval mechanism 6 to take out the goods from the storage rack 12 parked at the receiving point and place them in the electric stacking bin 5.

[0090] S9: After the goods are placed in the electric stacking bin 5, the second controller controls the electric movable platform of the electric stacking bin 5 where the goods are placed to move to the pick-up point.

[0091] When there are goods to be shipped out, the second controller receives a pick-up instruction, which contains the barcode of the goods to be shipped out. The second controller generates a shipping signal carrying the barcode of the goods to be shipped out and sends it to the first controller of the rail shelf of the corresponding warehouse. After the first controller receives the shipping signal, the first controller controls the first drive device and the second drive device of the storage rack of the goods to be shipped out, and parks the storage rack at the receiving point (i.e., the shipping position). After the storage rack is parked at the receiving point, the second controller controls the storage and retrieval mechanism to move to the storage rack, automatically scans and verifies the barcode or electronic label of the goods to be shipped out, and then after the verification is correct, the storage and retrieval mechanism takes out the goods and places them in the electric stacking warehouse, and writes the extraction information to the electronic label. The electric mobile platform of the electric stacking warehouse moves to the input end of the electric conveyor belt under the control of the second controller, and the goods to be shipped out are transported to the linear cross belt sorting machine through the electric conveyor belt, and the linear cross belt sorting machine is sent to the designated sorting outlet to complete the shipping.

[0092] The electric stacking warehouse of the shifting automatic storage logistics system of the present invention improves the efficiency of incoming or outgoing goods. The electric stacking warehouse can cut the peak when the flow is large and fill the valley when the flow is small, so as to balance the flow and operation rhythm between the linear cross belt sorter and the storage and retrieval mechanism. Its sequential logic fully meets the management requirements of the storage system.

[0093] The multiple storage racks of the track rack of the present invention are discretely arranged on the rectangular ground rail structure and adopt intermittent bidirectional pushing and shoving movement, which greatly shortens the waiting time between system matching and actual docking between the receiving point and the storage and retrieval mechanism.

[0094] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the above features are replaced with (but not limited to) technical features with similar functions disclosed in the present application.

Claims

1. A rail rack, characterized in that: include: A rectangular ground rail structure, comprising an inner ring rail and an outer ring rail arranged concentrically, wherein the inner ring rail and the outer ring rail respectively have two long side segments arranged along a first horizontal direction and two short side segments arranged along a second horizontal direction, wherein the short side segments are connected between two ends of the two long side segments, and the second horizontal direction is perpendicular to the first horizontal direction; A plurality of storage racks, each of which has a first side and a second side opposite to each other in the first horizontal direction and a third side and a fourth side opposite to each other in the second horizontal direction, the third side and the fourth side of each of which are respectively provided with first rollers for traveling on the short side segments of the inner ring track and the outer ring track, the first side and the second side of each of which are respectively provided with second rollers for traveling on the long side segments of the inner ring track and the outer ring track, a gap is formed between at least two of the storage racks, and the length of the gap is adapted to the length of one of the storage racks; A first driving device for driving the storage rack to travel a preset distance along the long side section, each of the long side sections being equipped with the first driving device; A second driving device for driving the storage rack to travel along the short side section for a preset distance, each short side section being provided with the second driving device; as well as A first controller is connected to the first driving device and the second driving device. When the second roller moves to the end of the long side segment, the first controller turns off the first driving device and turns on the second driving device to make the storage rack move along the short side segment. When the first roller moves to the end of the short side segment, the first controller turns off the second driving device and turns on the first driving device to make the storage rack move along the long side segment.

2. The rail rack according to claim 1, characterized in that: A limiting wheel rim is formed on the inner side of the first roller, and a first supporting plate for supporting the limiting wheel rim of the second roller is installed between the long side segment of the inner ring track and the short side segment of the outer ring track. When the storage rack moves to the end of the long side segment, the first supporting plate supports the second roller on the suspended side of the storage rack.

3. The rail rack according to claim 1, characterized in that: A limiting rim is formed on the inner side of the second roller, and a second supporting plate formed with a limiting rim for supporting the first roller is installed between the short side segment of the inner ring track and the long side segment of the outer ring track. When the storage rack moves to the end of the short side segment, the second supporting plate supports the first roller on the suspended side of the storage rack.

4. The rail rack according to claim 1, characterized in that: It also includes a rectangular hanging rail installed above the storage rack, the rectangular hanging rail is concentrically arranged with the inner ring track, a slide groove is formed at the bottom of the rectangular hanging rail, the slide groove is arranged in a circle along the length direction of the rectangular hanging rail, and the top of the storage rack is connected to a guide rod, and the top of the guide rod is slid in the slide groove.

5. The rail rack according to claim 4, characterized in that: The rectangular hanging rail is arranged in the middle of the outer ring rail and the inner ring rail.

6. The rail rack according to claim 1, characterized in that: The distance between the long side section of the inner ring track and the long side section of the outer ring track is adapted to the wheelbase between the second roller on the third side of the storage rack and the second roller on the fourth side of the storage rack.

7. The rail rack according to claim 6, characterized in that: The distance between the short side segment of the inner ring track and the short side segment of the outer ring track is adapted to the wheelbase between the first roller on the first side of the storage rack and the first roller on the second side of the storage rack.

8. A shifting automatic storage logistics system, characterized in that: include: Linear cross-belt sorter; A guide rail assembly comprises three guide rails arranged in the same direction, and a plurality of sorting ports of the linear cross-belt sorter are arranged along the length direction of the guide rails; An electric conveyor belt, slidably mounted on a guide rail of the guide rail assembly on a side close to the linear cross-belt sorter; An electric stacking bin is slidably mounted on a guide rail in the middle of the guide rail assembly; A cargo bin mounted on a side of the guide rail assembly away from the linear cross-belt sorter, comprising a plurality of rail racks as described in any one of claims 1 to 7; A storage and retrieval mechanism for storing goods in the electric stacking bin in the storage rack of the rail rack or retrieving goods in the storage rack to the electric stacking bin, a guide rail slidably disposed on a side of the guide rail assembly close to the bin; and The second controller is connected to the linear cross-belt sorter, the electric conveyor belt, the electric stacking bin, and the storage and retrieval mechanism.

9. A conveying method of a shift-type automatic storage logistics system as claimed in claim 8, characterized in that: The following steps are involved: The second controller starts the linear cross-belt sorter, so that the linear cross-belt sorter transports the goods to be sorted to a plurality of sorting ports of the linear cross-belt sorter respectively; The second controller controls the electric conveyor belt and the electric stacking bin to move to the corresponding sorting port of the linear cross-belt sorting machine, and the electric conveyor belt transports the goods at the sorting port to the electric stacking bin; After the goods are transported to the electric stacking warehouse, the second controller generates a storage signal and sends the storage signal to a first controller of a rail rack in the warehouse; The first controller activates a plurality of first driving devices and a plurality of second driving devices of the track rack, so that a storage rack of the track rack is parked at a receiving point; After a storage rack is parked at the receiving point, the storage and retrieval mechanism takes out the goods in the electric stacking bin and stores them in the storage rack at the receiving point; After the goods are stored in the storage rack, the second controller receives a pick-up instruction, generates a warehouse-out signal based on the pick-up instruction, and sends the warehouse-out signal to the first controller of the rail rack storing the goods of the pick-up instruction; The first controller activates a plurality of first driving devices and a plurality of second driving devices of the track rack, so that the storage rack storing the goods of the pickup instruction is parked at the receiving point; After the storage rack storing the goods of the pickup instruction is parked at the receiving point, the storage and retrieval mechanism takes out the goods from the storage rack parked at the receiving point and places them in the electric stacking bin; After the goods are placed in the electric stacking bin, the second controller controls the electric stacking bin with the goods placed therein to move to a pickup point.

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