An access device

Abstract

This utility model provides a storage and retrieval device, relating to the field of material storage and retrieval technology. It includes a frame, a tray storage and retrieval device mounted on the frame, and multiple trays on a material rack that can move back and forth. The frame has a first space and a second space connected together. The material rack is located in the first space and can be moved out of or into the first space. The tray storage and retrieval device is located in the second space. The tray storage and retrieval device includes a lifting frame and a push-pull mechanism mounted on the lifting frame. The push-pull mechanism is used to push the trays from the second space into the material rack or pull the trays from the material rack into the second space. The advantages of this utility model are that the storage and retrieval device allows the production line to directly push materials into the trays or directly push materials out of the trays and into the production line. It directly connects to the production line, eliminating the need for manual labor or AGV transfer and transportation. It also allows the entire material rack to be moved out for replacement, making the storage and retrieval structure more convenient and efficient, ultimately improving the overall production efficiency of the product.

Description

Technical Field

[0001] This utility model relates to the field of material storage and retrieval technology, and more specifically, to a storage and retrieval device. Background Technology

[0002] In modern industrial production, especially in fields requiring dense material storage such as neodymium iron boron material processing and electronic component manufacturing, the level of automation of warehousing equipment directly affects production efficiency. Traditional warehousing equipment has significant technical bottlenecks: First, the independent setup of equipment leads to poor production line integration, requiring AGV carts to transfer pallets. Taking an automated warehousing device disclosed in Chinese Utility Model Patent CN120003893A as an example, in the neodymium iron boron processing, material pallets need to be transported back and forth to the storage device via AGV, which can easily cause logistics blockages in the intermediate links. Second, the material racks used to store pallets are fixed, and manual or AGV carts are required to transfer pallets one by one during storage and retrieval. Taking a vertical automated storage device disclosed in Chinese Utility Model Patent CN 219504754U as an example, it can only operate on a single storage rack, and storage and retrieval must start from the bottom layer. When material pallets on the upper layer need to be retrieved, all the pallets below often need to be moved first, and a single retrieval can take more than 10 minutes.

[0003] Furthermore, existing multi-shelf systems suffer from a trade-off between capacity and cost: adding independent storage units doubles the investment cost; expanding capacity with a single unit significantly reduces access efficiency. Simultaneously, the lack of integrated design between production lines and warehousing necessitates multiple transfers of materials, increasing the risk of contamination and hindering production data traceability. Therefore, there is an urgent need for intelligent warehousing equipment that can directly connect to production lines, provide efficient access, and flexibly expand storage capacity. Utility Model Content

[0004] This invention addresses the technical problems of existing warehousing equipment being unable to connect to production lines, material racks used for storing pallets being unable to be transferred, and low storage and retrieval efficiency. To overcome these shortcomings, this invention provides a storage and retrieval device that enables automatic storage and retrieval of pallets. This device allows the production line to directly push materials into the pallets or directly push materials from the pallets into the production line, directly connecting to the production line and eliminating the need for manual or AGV transfer links. Furthermore, when all pallets are full, the entire material rack can be transferred directly, solving the problem of fixed material rack installation and eliminating the need to transfer pallets one by one. This results in higher overall transfer and storage and retrieval efficiency of the pallets, ultimately improving overall production efficiency.

[0005] To achieve the purpose of this utility model, the following technical solution is adopted: A storage and retrieval device includes a frame, a tray storage and retrieval device mounted on the frame, and a plurality of trays on a material rack that are movable back and forth; the frame has a first space and a second space that are connected to each other, the material rack is disposed in the first space and can be moved out of or into the first space, and the tray storage and retrieval device is disposed in the second space; the tray storage and retrieval device includes a lifting frame and a push-pull mechanism disposed on the lifting frame; the push-pull mechanism is used to push the trays from the second space into the material rack or pull the trays from the material rack into the second space. This storage and retrieval equipment enables automatic storage and retrieval of trays, allowing the production line to directly push materials into or push materials from trays into the production line. It directly connects to the production line, eliminating the need for manual labor or AGV (Automated Guided Vehicle) transfer, significantly improving conveying efficiency. The lifting frame enables the pushing and pulling mechanism to be positioned, determining which tray layer to store or retrieve. Furthermore, once all trays are full or delivered, the entire material rack can be removed for replacement, eliminating the need for individual tray transfer and storage. This more convenient and efficient storage and retrieval structure ultimately improves overall product production efficiency.

[0006] Preferably, the push-pull mechanism includes a support platform mounted on the lifting frame, a first motor mounted on the support platform, and a conveyor, wherein the first motor drives the conveyor to move the pallet; or, the push-pull mechanism includes a push-pull rod driven by a motor, cylinder, hydraulic cylinder, or lead screw. Of course, the push-pull mechanism also includes conventional devices in the art and is not limited to the aforementioned structures. Any device used to push the pallet from the second space into the material rack or pull the pallet from the material rack to the second space falls within the scope of a push-pull mechanism. The support platform provides a horizontal bearing reference, preventing the pallet from tilting during movement, and the cooperation of the first motor and the conveyor achieves horizontal access, improving the convenience of access.

[0007] Preferably, the conveyor is a conveyor chain or conveyor belt; the conveyor is provided with a first protrusion for moving the carrier tray, and the carrier tray is provided with a slot, into which the first protrusion can slide. By having the first protrusion on the conveyor engage with the slot on the carrier tray, the carrier tray can be moved, preventing it from falling off during movement, thus achieving convenient storage and retrieval.

[0008] Preferably, the conveyor is further provided with a second protrusion for pushing the tray into the material rack. In the pushing direction, the second protrusion is located behind the first protrusion. The second protrusion allows for precise repositioning after the tray is pushed into the material rack, ensuring the tray is accurately positioned within the rack. This solves the problem of inaccurate positioning, improves automation, and ensures positioning accuracy.

[0009] Preferably, the frame is equipped with a locking device to secure the material rack and the frame. The locking device clamps the material rack, further ensuring clamping stability and preventing displacement of the material rack during storage and retrieval.

[0010] Preferably, the locking device includes clamping parts on both sides and a clamping drive part. The clamping drive part is used to drive the two clamping parts to move closer or further apart, thereby clamping and releasing the locking blocks on the material rack. By clamping the locking blocks on the material rack with the locking device, displacement of the material rack during storage and retrieval is prevented. Furthermore, the cooperation between the clamping drive part and the two clamping parts further improves the stability of the clamping. At the same time, the movable material rack enables precise docking of a single device with multiple material racks, improving storage capacity and convenience.

[0011] Preferably, the clamping drive unit includes a third motor, a lead screw, a first clamping slide, and a second clamping slide; the lead screw is connected to the third motor, and both the first and second clamping slides are driven by the lead screw, enabling the first and second clamping slides to move closer or further apart; the clamping units on both sides each include a first clamping plate and a second clamping plate; one end of the first clamping plate is hinged to the rotating shaft seat, and the other end of the first clamping plate is used to clamp the locking block; one end of the second clamping plate is hinged to the clamping slide on the corresponding side, and the other end of the second clamping plate is hinged to the middle of the first clamping plate, and the clamping and releasing of the first clamping plate is achieved by the back-and-forth horizontal movement of the clamping slide. The clamping drive unit uses a motor-driven lead screw, which drives the clamping slide through positive and negative threads, and links the clamping plate to clamp the locking block. This replaces manual positioning, shortens the clamping time, and ensures uniform clamping force, preventing material rack displacement. This improves the convenience and stability of material rack clamping, facilitates the transfer and fixation of the material rack, and enhances the flexibility of material rack conveying and replacement. Furthermore, the positive and negative thread design enables synchronous and symmetrical clamping, which, compared to pneumatic clamping methods, is unaffected by air pressure fluctuations and reduces the failure rate.

[0012] Preferably, a material feeding device is also included, comprising a feeding drive and a feeding pusher connected to the feeding drive. The material feeding device is used to feed materials into a carrier located in the second space. By directly receiving materials output from the production line, the material feeding device feeds materials row by row, replacing manual or AGV cart transportation, greatly improving production efficiency.

[0013] Preferably, a material feeding device is also included, comprising a feeding drive mechanism and a feeding pusher plate disposed on the feeding drive mechanism; the feeding drive mechanism can drive the feeding pusher plate to push out the material on the carrier plate located in the second space. The material is horizontally pushed to the production line by the feeding pusher plate on the feeding drive mechanism, and docked with the production line, which greatly improves production efficiency.

[0014] Preferably, the material feeding device is also equipped with a feeding lifting mechanism synchronized with the feeding drive mechanism; the feeding lifting mechanism is used to drive the feeding push plate to move up and down. By adjusting the height of the feeding push plate and the horizontal pushing position through the feeding lifting mechanism and the feeding drive mechanism, it can be adapted to different layers of material rack trays, improving flexibility compared to a fixed height feeding structure.

[0015] In summary, this utility model, through multi-dimensional technological innovation, effectively solves the pain points of traditional warehousing equipment and achieves the following technical effects: It enables automatic storage and retrieval of the disk.

[0016] Production line docking and efficient conveying: The production line can be directly docked with the tray storage and retrieval device in the second space of the rack. The production line can directly push materials into the trays or push materials out of the material rack into the production line. The material rack is equipped with multiple trays arranged vertically and vertically. The tray storage and retrieval device can automatically select a tray. After the tray is full, it is stored in the material rack through horizontal conveying, eliminating the AGV transfer link, which greatly improves the material conveying efficiency and greatly reduces logistics costs.

[0017] Flexible access and precise positioning: The push-pull mechanism, in conjunction with the lifting frame, can directly access the pallets at any height on the material rack horizontally without the need for bottom-level turnover. Furthermore, the design of the first and second protrusions on the conveyor chain of the conveyor component ensures the precision of pallet positioning.

[0018] Storage expansion and cost optimization: The locking device enables a single unit to switch between multiple racks, greatly improving storage flexibility. Furthermore, the overall rack transfer design further reduces the number of pallet handling operations, lowers the material breakage rate, and further reduces the scrap rate.

[0019] Automation and reliability improvements: The material conveying and locking devices achieve full-process automation, reducing manual intervention; accuracy and reliability are improved. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the storage and retrieval device of this utility model (equipped with a material feeding device for feeding).

[0021] Figure 2 This is a schematic diagram of the internal structure of the storage and retrieval device (for feeding) of this utility model.

[0022] Figure 3 This is a schematic diagram of the material feeding device of this utility model.

[0023] Figure 4 This is a schematic diagram of the front of the disk storage and retrieval device of this utility model.

[0024] Figure 5This is a schematic diagram of the back of the disk storage and retrieval device of this utility model.

[0025] Figure 6 This is a schematic diagram showing the engagement state between the carrier plate and the first protrusion at the corner of the conveyor during the feeding process of this utility model.

[0026] Figure 7 This is a schematic diagram of the carrier plate at the corner of the conveyor during the feeding process of this utility model, in which the first protrusion is about to detach.

[0027] Figure 8 This is a schematic diagram showing the state where the carrier plate is detached from the first protrusion at the corner of the conveyor during the feeding process of this utility model.

[0028] Figure 9 This is a schematic diagram of the structure of the second protrusion at the corner of the conveyor component of this utility model abutting against the carrier plate.

[0029] Figure 10 This is a schematic diagram of the carrier disk of this utility model.

[0030] Figure 11 This is a structural schematic diagram of the locking device of this utility model.

[0031] Figure 12 This is a structural schematic diagram of the material rack of this utility model.

[0032] Figure 13 This is a front structural diagram of the storage and retrieval device of this utility model (equipped with a material feeding device for unloading).

[0033] Figure 14 This is a schematic diagram of the back structure of the storage and retrieval device (for unloading) of this utility model.

[0034] Figure 15 This is a schematic diagram of the material feeding device (used for feeding) of this utility model.

[0035] Figure 16 This is a cross-sectional view of the material feeding device (for unloading) of this utility model.

[0036] Explanation of reference numerals in the attached figures: 1. Frame; 11. First space; 12. Second space; 21. Loading connection platform; 211. Loading bracket; 212. Connecting plate; 22. Loading mechanism; 221. Loading drive frame; 222. Loading drive component; 23. Loading push plate; 24. Loading slide rail; 3. Cartridge storage and retrieval device; 31. Push-pull mechanism; 310. Support platform; 311. Storage and retrieval drive wheel; 312. Storage and retrieval driven wheel; 313. Conveying component; 3131. Corner of conveying component; 314. First protrusion; 315. Second protrusion; 316. First access guide wheel; 317. Second access guide wheel; 318. First motor; 32. Lifting frame; 321. Lifting positioning plate; 322. First lifting slide rail assembly; 3221. Slide rail support plate; 3222. Vertical slide rail; 323. Second lifting slide rail assembly; 324. Lifting drive positioning assembly; 3241. Second motor; 3242. Active synchronous wheel; 3243. First synchronous wheel; 3244. First rack; 3245. Driven synchronous wheel 3246. Stepping wheel; 3247. Second synchronous wheel; 3248. Second rack; 3249. Lifting synchronous chain; 3240. Connecting shaft; 4. Carrier plate; 41. Slot; 42. Snap-fit ​​positioning block; 43. Placement partition; 44. Carrier plate roller; 45. Moving slide; 5. Material rack; 51. Locking block; 52. Material rack partition; 53. Material rack guide wheel; 6. Locking device; 61. Locking base; 62. Clamping part; 621. First clamping plate; 622. Second clamping plate; 63. Clamping drive Part; 631, Third motor; 632, Lead screw; 633, First clamping slide; 634, Second clamping slide; 635, Rotary shaft seat; 636, Clamping moving slide rail; 71, Unloading support plate; 72, Unloading drive mechanism; 721, Unloading horizontal slide plate; 722, Fourth motor; 723, Unloading drive gear; 724, Unloading rack; 725, Unloading horizontal slide rail; 73, Unloading lifting mechanism; 731, Unloading lifting cylinder; 732, Unloading lifting slide rail; 74, Unloading push plate. Detailed Implementation

[0037] First, those skilled in the art should understand that these embodiments are merely used to explain the technical principles of the embodiments of this application and are not intended to limit the scope of protection of the embodiments of this application. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0038] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0039] In the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0040] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0041] like Figures 1 to 16 As shown, a storage and retrieval device includes a frame 1, a tray storage and retrieval device 3 mounted on the frame 1, a material rack 5, trays 4 evenly spaced vertically on the material rack 5 and movable back and forth, and a material conveying device. The material conveying device includes a material feeding device for loading and a material discharging device for unloading. The frame 1 has a first space 11 and a second space 12 that are connected and distributed along the front-back direction. That is, the front-back movement direction of the trays 4 is adapted to the front-back distribution position of the first space 11 and the second space 12. The first space 11 is a U-shaped space located on the rear side of the frame 1 with its opening facing rearward, and the second space 12 is a U-shaped space located on the front side of the frame 1 with its opening facing forward, and the two U-shaped spaces are connected. The material rack 5 is located in the first space 11 and can be moved horizontally in and out of the first space 11 on the frame 1. The tray storage and retrieval device 3 is located in the second space 12. The tray storage and retrieval device 3 includes a lifting frame 32 and a push-pull mechanism 31 mounted on the lifting frame 32. When the material conveying device is used to feed materials into or out of the tray 4, the push-pull mechanism 31 is used to push the tray 4 horizontally into or pull it horizontally out of the material rack 5. The material conveying device and the tray storage and retrieval device 3 can be combined together. The material conveying device can directly push materials into or out of the tray 4, eliminating the AGV transfer link and greatly improving the conveying efficiency. The lifting frame 32 realizes the lifting and positioning of the push-pull mechanism 31, thereby determining the tray 4 of the specified layer for storage and retrieval. After all the trays 4 are full or delivered, the material rack 5 can be directly moved out as a whole for replacement, without the need for individual transfer and storage of each tray 4. The storage and retrieval structure is more convenient and the storage and retrieval efficiency is higher, ultimately improving the overall production efficiency of the product.

[0042] like Figure 10 and Figure 12As shown, each tray 4 slides horizontally on the material rack 5 in a front-to-back direction. The material rack 5 is a rectangular frame extending through the material rack 5. The front of the material rack 5 is used for pushing in and pushing out the tray 4, and a vertical stop bar is provided in the middle of the rear side of the material rack 5 to limit the tray 4 and prevent it from being pushed out of the material rack 5. Four wheels are provided at the four corners of the bottom of the material rack 5, so that it can be transferred manually or by AGV, thereby realizing the replacement and transfer of the entire material rack 5, further improving the transfer efficiency and convenience. The left and right sides of the material rack 5 are symmetrically provided with material rack partitions 52 arranged at equal intervals from top to bottom, and the two material rack partitions 52 are used to support the left and right sides of the bottom surface of the tray 4. Each material rack partition 52 has several horizontally rotating material rack guide wheels 53 arranged at equal intervals in a front-to-back direction. In this embodiment, the number of material rack guide wheels 53 is three. Each layer of material rack partitions 52 of the material rack 5 can hold one tray 4, and the tray 4 is as follows: Figure 1 and Figure 10 As shown, the top surface of the tray 4 is a flat, horizontal surface. Several horizontally distributed partitions 43 are arranged at equal intervals along the front-to-back direction. A material conveying device pushes rows of materials into the gaps between two partitions 43. A locking and positioning block 42 is symmetrically arranged on the left and right sides of the tray 4. The bottom surface of the locking and positioning block 42 has a rectangular slot 41 with an opening facing downwards. The slot 41 cooperates with the push-pull mechanism 31 to achieve horizontal movement of the tray 4 in or out. Several tray rollers 44 are distributed at intervals along the front-to-back direction on both sides of the tray 4. In this embodiment, there are three tray rollers 44. Furthermore, when the tray rollers 44 are pushed into the material rack 5, they can roll on the partitions 43, ensuring smoothness and stability during the push-in to the material rack 5, further ensuring positioning accuracy.

[0043] In this embodiment, the material feeding device can be implemented in various ways: The first method is the common conveying robot located between two devices. The conveying robot delivers materials one by one to the carrier plate 4. Although this method can achieve conveying and transfer, it requires high precision from the conveying robot and the efficiency of transferring materials one by one is low, resulting in high cost.

[0044] The second method, such as Figures 1 to 3As shown, the material feeding device is used to feed materials into the carrier tray 4 to achieve the feeding function. The material feeding device includes a feeding connecting platform 21, a feeding mechanism 22, and a feeding push plate 23; the feeding connecting platform 21 is located on the left side of the frame 1, the feeding mechanism 22 is arranged horizontally on the feeding connecting platform 21, and the feeding push plate 23 is connected to the feeding drive part of the feeding mechanism 22, and pushes the materials horizontally into the carrier tray 4 row by row through the feeding push plate 23; the feeding connecting platform 21 includes a feeding bracket 211 and a connecting plate 212; the feeding bracket 211 is located on the frame 1, the connecting plate 212 is arranged horizontally on the feeding bracket 211, and the top surface of the connecting plate 212 is a flat connecting table surface. In this embodiment, the feeding mechanism 22 includes a feeding drive frame 221 and a feeding drive component 222. The feeding drive frame 221 is mounted on the feeding support 211. The feeding drive component 222 can be driven by an electric cylinder, a pneumatic cylinder, a hydraulic cylinder, or a motor lead screw. In this embodiment, the feeding drive component 222 is a horizontal driving electric cylinder, but it can also be driven by a pneumatic cylinder or a hydraulic cylinder to achieve horizontal driving and positioning. The fixing part of the feeding drive component 222 is horizontally mounted on the feeding drive frame 221. The feeding push plate 23 is located above the connecting table surface and is connected to the driving part of the feeding drive component 222. A feeding slide rail 24 is provided between the feeding push plate 23 and the feeding drive frame 221. The material output from the production line is directly received by the connecting plate 212 on the feeding platform 21. The feeding push plate 23 pushes the material on the connecting plate 212 row by row, replacing manual or AGV cart transportation, which greatly improves production efficiency. At the same time, the material discharge directly connects to the storage equipment, connecting the entire production line and providing a good foundation for the subsequent automated production line.

[0045] like Figures 13 to 16As shown, this is a storage and retrieval device equipped with a material feeding device, which can be used to feed materials from the carrier tray 4 to achieve the function of unloading. The material feeding device includes a material feeding support plate 71, a material feeding drive mechanism 72, a material feeding lifting mechanism 73, and a material feeding push plate 74. The material feeding support plate 71 is on the frame 1 in a left-right direction. The material feeding lifting mechanism 73 is set on the material feeding support plate 71 through the material feeding drive mechanism 72, and the material feeding lifting mechanism 73 is horizontally positioned through the material feeding drive mechanism 72. The material feeding push plate 74 is connected to the material feeding lifting mechanism 73, and the material feeding lifting mechanism 73 is used to lift and position the material feeding push plate 74. The material feeding support plate 71 is set on the top of the frame 1. The material feeding drive mechanism 72 can adopt the transmission method of electric cylinder, pneumatic cylinder, or motor screw. In this embodiment, the feeding drive mechanism 72 includes a feeding horizontal slide plate 721, a fourth motor 722, a feeding drive gear 723, and a feeding rack 724. The feeding horizontal slide plate 721 is slidably connected to the feeding support plate 71 via two upper and lower feeding horizontal slide rails 725. The fourth motor 722 is mounted on the feeding horizontal slide plate 721, the feeding drive gear 723 is connected to the drive shaft of the fourth motor 722, and the feeding rack 724 is horizontally mounted on the feeding support plate 71. The feeding drive gear 723 meshes with the feeding rack 724. The horizontal movement and positioning on the feeding rack 724 are achieved by the rotation of the feeding drive gear 723. The feeding lifting mechanism 73 can adopt the transmission method of electric cylinder, pneumatic cylinder, or motor screw. In this embodiment, the feeding lifting mechanism 73 includes a feeding lifting cylinder 731 and a feeding lifting slide rail 732. The cylinder body of the feeding lifting cylinder 731 is vertically set on the feeding horizontal slide plate 721. The telescopic rod of the feeding lifting cylinder 731 is connected to the feeding push plate 74, and the feeding push plate 74 is slidably connected to the feeding horizontal slide plate 721 through the feeding lifting slide rail 732. The height of the feeding push plate 74 and the horizontal push-out or push-in position can be adjusted by the feeding drive mechanism 72 and the feeding lifting mechanism 73 to adapt to different layers of trays 4 of the material rack 5. Compared with the fixed height discharge structure, the flexibility is improved.

[0046] A complete production line typically includes a material feeding device for feeding materials and a material discharging device for discharging materials.

[0047] like Figure 3 and Figure 4As shown, the lifting frame 32 has a lifting positioning plate 321. A first lifting slide rail assembly 322, a second lifting slide rail assembly 323, and a lifting drive positioning assembly 324 cooperate to allow the lifting positioning plate 321 to rise or fall on the frame 1. The lifting positioning plate 321 is slidably connected to the left side of the frame 1 via the first lifting slide rail assembly 322, and slidably connected to the right side of the frame 1 via the second lifting slide rail assembly 323. The lifting drive positioning assembly 324 is disposed on the lifting positioning plate 321 and drives the lifting positioning plate 321 to achieve lifting and positioning. Both the first lifting slide rail assembly 322 and the second lifting slide rail assembly 323 include… The slide rail support plate 3221 and the vertical slide rail 3222 are arranged vertically on the front frame rod of the frame 1 via the slide rail support plate 3221. The lifting positioning plate 321 is slidably engaged on the vertical slide rail 3222 via several sliders. The lifting drive positioning assembly 324 includes a second motor 3241, a lifting active synchronous wheel 3242, a first synchronous wheel 3243, a first rack 3244, a lifting driven synchronous wheel 3245, a second synchronous wheel 3246, a second rack 3247, and a lifting synchronous chain 3248. The lifting active synchronous wheel 3242, the first synchronous wheel 3243, the lifting driven synchronous wheel 3245, and the second synchronous wheel 3246 are all gears. The second motor 3241 is located on the left side of the lifting positioning plate 321. The second motor 3241 is arranged in a front-to-back direction. The output shaft of the second motor 3241 passes through the lifting positioning plate 321 rearward, and the output shaft of the second motor 3241 is rotatably connected to the lifting positioning plate 321 through a bearing. The lifting active synchronous wheel 3242 and the first synchronous wheel 3243 are coaxially arranged on the output shaft of the second motor 3241. The lifting driven synchronous wheel 3245 and the second synchronous wheel 3246 are coaxially arranged and rotatably connected to the right side of the lifting positioning plate 321 through a connecting shaft 3249. The lifting driven synchronous wheel 3245 and the lifting active synchronous wheel 3242 are horizontally aligned left and right. The first synchronous wheel 3243 and the second synchronous wheel 3246 are horizontally aligned left and right. The first rack 3244 and the second rack 3247 are vertically arranged on the left and right sides of the frame 1, respectively. The lifting drive synchronous pulley 3242 meshes with the first rack 3244, and the lifting driven synchronous pulley 3245 meshes with the second rack 3247. The lifting synchronous chain 3248 is tensioned and connected to the first synchronous pulley 3243 and the second synchronous pulley 3246, realizing the synchronous rotation of the lifting drive synchronous pulley 3242 and the lifting driven synchronous pulley 3245. The lifting drive synchronous pulley 3242 rotates on the first rack 3244, and the lifting driven synchronous pulley 3245 rotates on the second rack 3247, driving the lifting positioning plate 321 to achieve lifting and positioning. The lifting frame 32 adopts a double slide rail design to avoid swaying during lifting, and the lifting synchronous chain 3248 works in conjunction with the gear and rack to ensure the stability and accuracy of lifting.

[0048] like Figures 4 to 9 As shown, the push-pull mechanism 31 includes a support platform 310, a first motor 318, and a conveyor 313. The support platform 310 is horizontally mounted on the lifting frame 32. The first motor 318 is mounted on the support platform 310, and the conveyor 313 is movably connected to the support platform 310. The first motor 318 is drively connected to the conveyor 313, and the first motor 318 drives the conveyor 313 to move the pallet 4 horizontally into or out of the material rack 5. In the figure, the conveyor 313 is a conveyor chain. The support platform 310 provides a horizontal bearing reference to prevent the pallet 4 from tilting during movement. Horizontal storage and retrieval are achieved through the storage and retrieval drive unit, improving the convenience of storage and retrieval.

[0049] like Figure 4 and Figure 5 As shown, in this embodiment, the conveying components 313 are symmetrically arranged on the left and right sides of the support platform 310. In this embodiment, the first motor 318 is a dual-axis motor, and the two output ends of the dual-axis motor are coaxially arranged on the left and right sides of the dual-axis motor. The two output ends of the dual-axis motor are respectively connected to the conveying components 313 on both sides for transmission. To drive the conveying components 313, a storage drive wheel 311 and a storage driven wheel 312 are also included. The storage drive wheel 311 is connected to one output end of the first motor 318, and the storage driven wheel 312 is rotatably connected to the support platform 310 through a gear shaft. The storage driven wheel 312 and the storage drive wheel 311 are located on the front and rear sides of the support platform 310 and are horizontally aligned. The conveyor chain is tensioned and connected to the storage driven wheel 312 and the storage drive wheel 311. The conveyor chain is provided with a storage drive part for driving the tray 4. The conveyor chain is provided with a storage positioning part for pushing the tray 4 into the material rack 5 for positioning. The conveyor 313 can also be in the form of a conventional conveyor belt, conveyor plate, or gear rack to achieve conveying. Synchronous drive on both sides prevents the tray 4 from being deflected by force on one side, and the storage and retrieval drive unit on the conveyor chain can drive the tray 4 to move horizontally. After the storage and retrieval positioning unit pushes the tray 4 into the material rack 5, it can be accurately positioned again to ensure that the tray 4 is accurately positioned in the material rack 5.

[0050] like Figures 6 to 9As shown, in this embodiment, the access drive unit consists of two parallel first protrusions 314 arranged on the inner side of the conveyor chain. Each first protrusion 314 is a horizontally protruding drive post. The two first protrusions 314 are respectively located on the right chain pin of one chain plate and the left chain pin of the next adjacent chain plate. The bottom of the carrier tray 4 is provided with a U-shaped groove 41 that engages with the first protrusions 314 and opens downwards. When the first protrusions 314 are located within the groove 41, the rotation of the conveyor chain drives the carrier tray 4 to move horizontally, thus pushing it in or out. The access positioning unit includes a second protrusion 315 arranged on the inner side of the conveyor chain. The second protrusion 315 is a horizontally protruding positioning post. Furthermore, the second protrusion 315 is spaced apart on the side (front side) away from the first protrusion 314 away from the material rack 5. The second protrusion 315 cooperates with the locking and positioning block 42 at the front of the carrier 4. When the first protrusion 314 pushes the carrier 4 horizontally into the material rack 5 (at the corner 3131 of the conveyor), and at the corner 3131 of the conveyor, the first protrusion 314 rotates and disengages from the slot 41, and the two first protrusions 314 are respectively on two adjacent chain plates, thus ensuring that the two first protrusions 314 disengage from the slot 41 in sequence, preventing jamming at the corner 3131 of the conveyor, and ensuring the smoothness of pushing in or moving out. After the first protrusion 314 is completely disengaged from the slot 41, the second protrusion 315 finally pushes the carrier 4 completely into and positions it in the material rack 5. The support platform 310 is provided with access guide wheel sets on both sides, which cooperate with the bottom surface of the tray 4. Each access guide wheel set includes three first access guide wheels 316 that are spaced apart in the front-back direction and rotate horizontally, and three second access guide wheels 317 that are spaced apart in the front-back direction and rotate vertically. The bottom surface of the tray 4 is provided with U-shaped sliding grooves 45 that open downwards, corresponding to the positions of the access guide wheels. The sliding grooves 45 are arranged through the front-back direction. The first access guide wheels 316 slide with the side walls of the sliding grooves 45, and the second access guide wheels 317 slide with the bottom of the sliding grooves 45. The first access guide wheels 316 and the second access guide wheels 317 can further ensure the smoothness, stability and accuracy of the movement of the tray 4 on the support platform 310. The first protrusion 314 engages with the slot 41, enabling the carrier tray 4 to move and preventing it from falling off during movement. The second protrusion 315 pushes and positions the carrier tray 4 after it reaches the material rack 5, solving the problem of inaccurate positioning, improving the level of automation, and ensuring the accuracy of positioning.

[0051] like Figure 2 and Figure 11As shown, it also includes a locking device 6 for locking the material rack 5 and the frame 1. The locking device 6 can be a locking slot and locking block structure provided on the material rack 5 and the frame 1, or it can be fixed by a buckle. In this embodiment, a clamping structure is adopted. The material rack 5 is provided with a locking block 51 that cooperates with the locking device 6. The locking block 51 consists of two locking guide wheels rotatably connected to the middle of the front side of the bottom of the material rack 5. The two locking guide wheels rotate horizontally and are arranged side by side and spaced apart in the left and right direction. The locking device 6 includes a locking base 61, clamping parts 62 provided on both sides of the locking base 61, and a clamping drive part 63. The clamping drive part 63 is used to drive the two clamping parts 62 to move closer or further apart, so as to clamp and release the two locking blocks 51 on the material rack 5. The locking device 6 clamps the locking block 51 on the material rack 5 to prevent the material rack 5 from shifting during storage and retrieval. Furthermore, the clamping stability is further achieved through the cooperation of the clamping drive unit 63 and the two clamping units 62. At the same time, the movable material rack 5 enables precise docking of a single device with multiple material racks 5, thereby improving storage capacity and convenience.

[0052] like Figure 11As shown, the clamping drive unit 63 includes a third motor 631, a lead screw 632, a first clamping slide 633, and a second clamping slide 634. The third motor 631 is mounted on the locking base 61. The lead screw 632 is horizontally positioned, and both ends of the lead screw 632 are rotatably connected to the locking base 61 via a rotating shaft seat 635. The left end of the lead screw 632 passes through the rotating shaft seat 635 and is connected to the third motor 631. The first clamping slide 633 and the second clamping slide 634 are slidably connected to the locking base 61 via a clamping moving slide rail 636, and both the first clamping slide 633 and the second clamping slide 634 are threadedly engaged with the lead screw 632. The threads of the first clamping slide 633 and the second clamping slide 634 are in opposite directions, allowing the first clamping slide 633 and the second clamping slide 634 to move closer to or further away from each other. Both clamping parts 62 include a first clamping plate 621 and a second clamping plate 622. The inner end of the first clamping plate 621 is hinged to the rotating shaft seat 635, and the outer end of the first clamping plate 621 is used to clamp the locking block 51. The inner end of the second clamping plate 622 is hinged to the clamping slide on the corresponding side, and the outer end of the second clamping plate 622 is hinged to the middle of the first clamping plate 621. The clamping and releasing of the first clamping plate 621 is achieved by the back-and-forth horizontal movement of the clamping slide, thereby achieving the clamping and centering of the two locking blocks 51 on the material rack 5. No manual or AGV trolley positioning is required, making positioning more convenient and accurate, and also facilitating the replacement of the material rack 5. The clamping drive unit 63 uses a motor-driven rotating shaft, which drives the clamping slide through positive and negative threads, and the clamping plate clamps the locking block 51 in conjunction with the clamping drive unit 63. This replaces manual positioning, shortens the clamping time, and ensures uniform clamping force, so as to ensure that the material rack 5 does not shift. This improves the convenience and stability of clamping the material rack 5, and also facilitates the transfer and fixation of the material rack 5, thereby improving the flexibility of conveying and replacing the material rack 5. Furthermore, the positive and negative thread design enables synchronous and symmetrical clamping. Compared with pneumatic clamping, it is not affected by air pressure fluctuations, thus reducing the failure rate.

[0053] In this embodiment, during the material loading and storage process: First, the material rack 5 filled with empty trays 4 is pushed into the first space 11 at the rear of the frame 1. The clamping drive part 63 on the locking device 6 drives the two clamping parts 62 to move closer together, clamping the locking block 51 on the material rack 5, so that the material rack 5 is fixed in the center within the frame 1. The lifting drive positioning component 324 on the lifting frame 32 drives the lifting positioning plate 321 to rise to a designated layer. The first protrusion 314 in the conveyor chain on the push-pull mechanism 31 is inserted from back to front into the slot 41 at the front of the tray 4. The conveyor chain continues to move, causing the tray 4 to move forward together with the conveyor chain, moving the empty tray 4 into the second space 12. At the feeding position, the material is conveyed from the production line to the feeding connection platform 21 and arranged horizontally in the left and right directions. The feeding mechanism 22 on the material feeding device drives the feeding push plate 23 to push a row of materials horizontally into the gap of the tray 4 until the entire tray 4 is filled. Then, the conveyor chain moves backward to push the tray 4 into the material rack 5. After the conveyor rotates at the corner 3131 and disengages from the slot 41, the second protrusion 315 pushes the tray 4 completely into the material rack 5 and positions it, completing the storage of one tray 4. The above actions are repeated until all the trays 4 on the entire material rack 5 are filled with materials. Then, the entire material rack 5 is moved out and transferred to other workstations for processing.

[0054] In this embodiment, during the material unloading and removal process: the material rack 5, filled with the carrier tray 4 (filled with material), is pushed into the first space 11 at the rear of the frame 1. The clamping drive 63 on the locking device 6 drives the two clamping parts 62 to move closer together, clamping the locking block 51 on the material rack 5, thus fixing the material rack 5 centrally within the first space 11 of the frame 1. The lifting drive positioning assembly 324 on the lifting frame 32 drives the lifting positioning plate 321 to rise to a designated layer. The first protrusion 314 in the conveyor chain on the push-pull mechanism 31 engages with the slot 41 at the front of the carrier tray 4 from back to front, and continues to move along the conveyor chain, causing the carrier tray 4 to move forward with the conveyor chain, moving the material-filled carrier tray 4 to the discharge position of the second space 12. The horizontal sliding plate 721 is positioned above the tray 4 by the cooperation of the feeding drive gear 723 and the feeding rack 724. The feeding lifting cylinder 731 drives the feeding push plate 74 to descend, and under the action of the feeding drive mechanism 72, the material is horizontally pushed out of the tray 4 and enters the next process. After each row of material on the tray 4 is pushed out, the empty tray 4 is pushed into the material rack 5 by the conveyor chain moving backward. At the corner of the conveyor 3131, it rotates and disengages from the slot 41. Finally, the second protrusion 315 on the conveyor chain pushes the empty tray 4 completely into the material rack 5 and completes the discharge of one tray 4. The above actions are repeated until all the material in the trays 4 on the entire material rack 5 is discharged. Then the entire material rack 5 is removed and replaced.

[0055] When there are both empty trays 4 and trays 4 filled with materials on the material rack 5, the material conveying device on this device in this embodiment can switch back and forth between loading and unloading, so as to realize the flexibility and convenience of storage and retrieval.

[0056] The technical advantages of this utility model include: The frame 1 has a first space 11 and a second space 12 that are connected to each other. The material rack 5 and the tray storage and retrieval device are located in the first space 11 and the second space 12 respectively. The material rack 5 together with the tray placed on it can be moved out or into the first space 11 as a whole. Therefore, the automatic storage and retrieval of the tray and the overall transfer of the tray can be realized, which greatly improves the efficiency of tray storage, retrieval and transfer.

[0057] Eliminating the AGV transfer link: Through the integrated design of the material conveying device and the tray storage and retrieval device 3, the production line can directly push the materials into the tray 4 without the need for AGV trolley transfer, reducing the risk of logistics congestion, improving conveying efficiency, and reducing logistics costs.

[0058] Simplified horizontal storage process: Once the tray 4 is full, it can be directly stored horizontally into the material rack 5 without the need for lifting or lowering, thus avoiding the cumbersome process of "lifting and lowering is necessary for storage and retrieval" in traditional equipment.

[0059] Synchronous drive and precise positioning: The horizontal storage and retrieval units on the left and right sides are driven by a conveyor chain. The first protrusion 314 engages with the slot 41 of the carrier plate 4 to drive the carrier plate 4 to move. The second protrusion 315 pushes and positions the carrier plate 4 after it reaches the material rack 5, achieving precise positioning. This solves the problem of inaccurate positioning in traditional manual methods and reduces the material breakage rate.

[0060] Guide wheel assembly and double slide rail design: The support platform 310 is equipped with horizontal and vertical guide wheel assemblies to reduce the movement resistance of the carrier plate 4; the lifting frame 32 adopts double slide rail and conveyor chain drive to improve structural stability.

[0061] Multiple rack switching and capacity expansion: The locking device 6 automatically positions the material rack 5 through the clamping drive unit 63. A single device can switch between multiple material racks 5, solving the pain point of "capacity and cost contradiction" in multi-rack systems.

[0062] Overall transfer and efficient turnover: The bottom of the material rack 5 is equipped with wheels, which can be transferred as a whole. With the locking device 6, it can be quickly replaced, reducing the number of times the pallet 4 is moved.

[0063] Feeding-Storage-Discharging Closed Loop: A material conveying device is added, and the position of the push plate is adjusted by the horizontal and lifting drive mechanism to realize the automatic removal of materials from the carrier plate 4, forming a fully automated closed loop.

[0064] Precise positioning: The first protrusion 314 and the second protrusion 315 are spaced apart on the inner side of the conveyor chain. The first protrusion 314 drives the carrier plate 4 to move. The second protrusion 315 pushes and positions itself after disengaging from the slot 41 at the corner, preventing the carrier plate 4 from falling off and ensuring a smooth storage and retrieval process.

[0065] Precise clamping of the material rack: The clamping drive unit 63 drives the lead screw 632 through the motor, and the positive and negative threads drive the clamping slide, which in turn clamps the clamping plate to hold the locking block 51 of the material rack. The clamping force is uniform, which avoids the displacement of the rack during storage and retrieval, and significantly improves safety.

[0066] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An access device, characterized in that, The device includes a frame (1), a tray storage and retrieval device (3) mounted on the frame (1), a material rack (5), and multiple trays (4) spaced vertically on the material rack (5) and movable back and forth. The frame (1) has a first space (11) and a second space (12) connected to each other. The material rack (5) is located in the first space (11) and can be moved out of or into the first space (11). The tray storage and retrieval device (3) is located in the second space (12). The tray storage and retrieval device (3) includes a lifting frame (32) and a push-pull mechanism (31) mounted on the lifting frame (32). The push-pull mechanism (31) is used to push the trays (4) from the second space (12) into the material rack (5) or to pull the trays (4) from the material rack (5) to the second space (12).

2. The access device according to claim 1, characterized in that, The push-pull mechanism (31) includes a support platform (310) mounted on the lifting frame (32), a first motor (318) mounted on the support platform (310), and a transmission component (313). The first motor (318) is used to drive the transmission component (313) to move so as to move the carrier plate (4). Alternatively, the push-pull mechanism (31) includes a push-pull rod, which is driven by a motor, a cylinder, a hydraulic cylinder, or a lead screw.

3. The access device according to claim 2, characterized in that, The conveyor (313) is a conveyor chain or conveyor belt; the conveyor (313) is provided with a first protrusion (314) for moving the carrier (4), and the carrier (4) is provided with a slot (41), and the first protrusion (314) can slide into or out of the slot (41).

4. The access device according to claim 3, characterized in that, The conveyor (313) is also provided with a second protrusion (315) for pushing the tray (4) into the material rack (5). In the pushing direction, the second protrusion (315) is located behind the first protrusion (314).

5. The access device according to claim 1, characterized in that, The frame (1) is provided with a locking device (6) for locking the material rack (5) and the frame (1).

6. The access device according to claim 5, characterized in that, The locking device (6) includes clamping parts (62) on both sides and a clamping drive part (63). The clamping drive part (63) is used to drive the two clamping parts (62) to move closer or further apart, so as to clamp and release the locking block (51) on the material rack (5).

7. The access device according to claim 6, characterized in that, The clamping drive unit (63) includes a third motor (631), a lead screw (632), a first clamping slide (633), and a second clamping slide (634); the lead screw (632) is connected to the third motor (631), and the first clamping slide (633) and the second clamping slide (634) are both driven by the lead screw (632), enabling the first clamping slide (633) and the second clamping slide (634) to move closer or further apart; the clamping units (62) on both sides each include a first clamping unit. The first clamping plate (621) and the second clamping plate (622) are used to clamp the locking block (51). One end of the first clamping plate (621) is hinged to the rotating shaft seat (635), and the other end of the first clamping plate (621) is used to clamp the locking block (51). One end of the second clamping plate (622) is hinged to the clamping slide on the corresponding side, and the other end of the second clamping plate (622) is hinged to the middle of the first clamping plate (621). The clamping and loosening of the first clamping plate (621) is achieved by the back-and-forth horizontal movement of the clamping slide.

8. The access device according to claim 1, characterized in that, It also includes a material feeding device, which includes a feeding drive (222) and a feeding push plate (23) connected to the feeding drive. The material feeding device is used to feed the material into the tray (4) located in the second space (12).

9. The access device according to claim 1, characterized in that, It also includes a material delivery device, which includes a feeding drive mechanism (72) and a feeding pusher plate (74) disposed on the feeding drive mechanism (72); the feeding drive mechanism (72) can drive the feeding pusher plate (74) to push out the material on the tray (4) located in the second space (12).

10. The access device according to claim 9, characterized in that, The material delivery device is also equipped with a material feeding lifting mechanism (73) that is synchronized with the material feeding drive mechanism (72); the material feeding lifting mechanism (73) is used to drive the material feeding push plate (74) to move up and down.

Images