Crystal ingot buffer device

Abstract

The present application belongs to the field of single crystal silicon production auxiliary equipment, and particularly relates to a crystal ingot buffer device, which is used to solve the technical problems of low utilization rate of workshop AGV and waste of workshop floor area caused by the crystal ingot waiting for final inspection in the prior art. The device comprises a control mechanism and front-end feeding mechanism, a transfer mechanism, a lifting mechanism, a three-dimensional buffer mechanism and a rear-end discharging mechanism which are electrically connected to the control mechanism respectively. One end of the transfer mechanism is connected to the outlet end of the front-end feeding mechanism, and the other end is connected to the inlet end of the rear-end discharging mechanism. The transfer mechanism is connected to the three-dimensional buffer mechanism in a lifting manner through the lifting mechanism. The three-dimensional buffer mechanism comprises a plurality of buffer storage locations. The control mechanism comprises a controller and a memory. The memory is in communication connection with the controller and is used to store the state information of each buffer storage location. Compared with the prior art, the utilization rate of the workshop public AGV is improved, the floor area is saved, and the buffer capacity of the production line is improved.

Description

Technical Field

[0001] This invention relates to the field of auxiliary equipment technology for monocrystalline silicon production, and in particular to an ingot buffer device. Background Technology

[0002] After monocrystalline silicon is pulled, the ingot needs to be cut and tumbled in a cutting and tumbling process to obtain a crystal ingot, which then enters the final inspection process for appearance inspection. In the existing technology, the cut and tumbled ingots are transported directly from the cutting and tumbling process to the final inspection process by shared automated guided vehicles (AGVs). Because the final inspection process is time-consuming, and the cutting and tumbling processes are characterized by dense and fast feeding, many shared AGVs often wait at the entrance of the final inspection process with ingots to be inspected. This results in low AGV utilization and a large footprint for AGVs waiting at the entrance of the final inspection process, wasting a significant amount of workshop space. Summary of the Invention

[0003] In view of this, it is necessary to provide a crystal ingot buffer device. By providing a three-dimensional buffer station before the final inspection process, on the one hand, the workshop's common AGVs do not need to wait at the entrance of the final inspection process during intensive feeding, which improves the utilization rate of the workshop's common AGVs and saves floor space. On the other hand, it improves the buffering capacity of the production line, which can both store intensive feeding and provide uniform feeding to the next stage.

[0004] A crystal ingot buffer device includes: a control mechanism, and a front-end feeding mechanism, a transfer mechanism, a lifting mechanism, a three-dimensional buffer mechanism, and a rear-end discharging mechanism, all electrically connected to the control mechanism. One end of the transfer mechanism is connected to the outlet end of the front-end feeding mechanism, and the other end is connected to the inlet end of the rear-end discharging mechanism. The transfer mechanism is also connected to the three-dimensional buffer mechanism via the lifting mechanism. The transfer mechanism is rotatable and can flexibly dock with the front-end feeding mechanism, the three-dimensional buffer mechanism, and the rear-end discharging mechanism to transport cylindrical crystal ingots.

[0005] The three-dimensional cache mechanism includes a three-dimensional cache rack, several cache slots, and a barcode strip; the several cache slots are evenly distributed vertically within the three-dimensional cache rack; the barcode strip is fixedly installed on one side of the front end of the three-dimensional cache rack, and a corresponding cache slot barcode is provided on the barcode strip at a position corresponding to each cache slot;

[0006] The control mechanism includes a controller and a memory; the controller is communicatively connected to the production line main controller and is used to receive material infeed requests or material discharge requests sent by the production line main controller; the controller is configured to control the front-end material infeed mechanism, the transfer mechanism, the lifting mechanism and the rear-end material discharge mechanism to coordinate their actions according to the received material infeed requests or material discharge requests, so as to store or retrieve the crystal ingots into or out of the buffer storage location; the memory is communicatively connected to the controller and is used to store the status information of each of the buffer storage locations.

[0007] Preferably, the controller includes: an inbound / outbound queue control unit, a storage location allocation unit, a timing setting unit, and an inbound / outbound material control unit;

[0008] The inbound / outbound queue control unit is used to communicate with the production line master controller and receive the inbound and outbound requests sent by the production line master controller, arrange them into a task queue according to the order of the time the requests are generated, and generate the first inbound signal and the first outbound signal.

[0009] The storage location allocation unit is used to allocate a target cache storage location for the currently fed ingot when the first feeding signal is received; and to query the storage unit to determine the discharge storage location when the first discharge signal is received.

[0010] The timing setting unit is used to set the feeding action timing of the front-end feeding mechanism, the transfer mechanism and the lifting mechanism and generate a second feeding signal after receiving the target cache location sent by the storage location allocation unit; and is used to set the discharging action timing of the lifting mechanism, the transfer mechanism and the rear-end discharging mechanism and generate a second discharging signal after receiving the discharging location sent by the storage location allocation unit.

[0011] The infeed / outfeed control unit is used to, upon receiving a second infeed signal, control the front-end infeed mechanism, the transfer mechanism, and the lifting mechanism to operate sequentially according to the infeed action sequence, so as to transport the infeed ingot to the target buffer storage location and return the pallet to the AGV along the original route; and is also used to, upon receiving a second outfeed signal, control the transfer mechanism, the lifting mechanism, and the rear-end outfeed mechanism to operate sequentially according to the outfeed action sequence, so as to transport the outfeed ingot to the next process.

[0012] The memory is communicatively connected to the controller and is used to store the feeding timing action, the discharging timing action, and the status information of each of the buffer locations.

[0013] Preferably, the storage location allocation unit includes: an infeed storage location allocation subunit and an outfeed storage location allocation subunit;

[0014] The feeding storage location allocation subunit is used to allocate a target cache storage location for the current feeding ingot according to a preset feeding storage location allocation strategy when the first feeding signal is received, and send it to the timing setting unit after the allocation is completed, and generate a first update signal; the feeding storage location allocation strategy is: to give priority to allocating the vacant storage location closest to the ground;

[0015] The discharge storage location allocation subunit is used to, upon receiving the first discharge signal, query the status information of each cache storage location in the storage unit according to the preset discharge storage location allocation strategy, determine the discharge storage location, and send it to the timing setting unit after allocation is completed; the discharge storage location allocation strategy is: among all ingots with the required length, the ingot that was stored earliest is selected first.

[0016] The timing setting unit includes: a feeding timing setting subunit and a discharging timing setting subunit;

[0017] The feeding timing setting subunit is used to set the feeding action timing of the front-end feeding mechanism, the transfer mechanism and the lifting mechanism after receiving the target buffer location sent by the feeding location allocation subunit, and to generate a second feeding signal.

[0018] The discharge timing setting subunit is used to set the discharge action timing of the lifting mechanism, the transfer mechanism and the rear discharge mechanism after receiving the discharge location sent by the discharge location allocation subunit, and to generate a second discharge signal.

[0019] The infeed and discharge control unit includes: an infeed control subunit and an discharge control subunit;

[0020] The feeding control subunit is used to control the front-end feeding mechanism, the transfer mechanism and the lifting mechanism to operate in sequence according to the feeding action timing after receiving the second feeding signal, to transport the feeding ingot to the target buffer storage location, and to return the tray to the AGV along the original route, and generate the third feeding signal after completion.

[0021] The discharge control subunit is used to control the transfer mechanism, the lifting mechanism and the rear discharge mechanism to operate in sequence according to the discharge action timing after receiving the second discharge signal, so as to transport the discharged ingot to the next process and generate the third discharge signal after completion.

[0022] The control unit further includes: a storage location information update unit for updating the occupancy status of each storage location in real time after receiving the first update signal target storage location or the third feeding signal, or after receiving the third discharging signal, and writing the updated status information into the memory.

[0023] The memory includes: a material feeding timing storage unit, a material discharging timing storage unit, and a storage location information storage unit;

[0024] The feeding timing storage unit is used to store the feeding action timing set by the feeding timing setting subunit. The feeding action timing includes the timing of the actions of the front feeding mechanism, the transfer mechanism, and the lifting mechanism.

[0025] The discharge timing storage unit is used to store the discharge action timing set by the discharge timing setting subunit. The discharge action timing includes the timing of the actions of the lifting mechanism, the transfer mechanism and the rear discharge mechanism.

[0026] The storage unit is communicatively connected to the storage barcode on the barcode strip and is used to store the status information of each cache storage location. It also receives and stores the updated status information sent by the storage location information update unit in real time. The status information includes whether the storage location is vacant, occupied, or locked, as well as the theoretical length value, storage time, and storage duration of the ingot in the storage location.

[0027] Preferably, the control mechanism further includes a detector;

[0028] The detector includes: a crystal ingot scanning component and a cache location reader;

[0029] The ingot scanning component is fixedly installed on the front-end feeding mechanism and is used to scan the QR code on the side of the ingot to obtain the theoretical length value of the ingot, which is then written into the storage unit through the storage location information update unit.

[0030] The cache location barcode reader is fixedly installed on the lifting mechanism at a position opposite to the barcode strip, and is used to scan the location barcode on the barcode strip to obtain the location information.

[0031] Preferably, the transfer mechanism includes a transfer base, a rotary motor, a rotary transmission assembly, a rotary base plate, and a transfer roller assembly;

[0032] The rotary motor is located in one corner of the transfer base; the rotary transmission assembly is located on the top of the transfer base, with its input end connected to the output end of the rotary motor; the rotating base plate is horizontally positioned above the rotary transmission assembly, with its bottom fixedly connected to the output end of the rotary transmission assembly; the transfer roller assembly is located on the top of the rotating base plate; the rotary motor drives the rotary transmission assembly, thereby causing the rotating base plate and the transfer roller assembly on it to rotate in a horizontal plane, so that the transfer roller assembly can rotate to different directions as needed and dock with the front-end feeding mechanism, the rear-end discharging mechanism, or the three-dimensional buffer mechanism; the rotary motor and the transfer roller assembly are respectively communicatively connected to the feeding control subunit, and are used to perform actions according to the feeding action sequence under the control of the feeding control subunit; the rotary motor and the transfer roller assembly are respectively communicatively connected to the discharging control subunit, and are used to perform actions according to the discharging action sequence under the control of the discharging control subunit.

[0033] Preferably, the transfer mechanism further includes a translation electric cylinder and a translation assembly; both the translation electric cylinder and the translation assembly are disposed on the top of the rotating base plate; the translation electric cylinder is connected to the input end of the translation assembly; the transfer roller assembly is disposed on the top of the translation assembly;

[0034] The translation electric cylinder drives the translation component, thereby causing the intermediate roller conveyor assembly to translate on the rotating base plate. This allows the intermediate roller conveyor assembly to move closer to the front-end feeding mechanism, the rear-end discharging mechanism, and the three-dimensional buffer mechanism when docking and conveying ingots, thus shortening the space reserved for the rotation of the rotating base plate. The translation motor is communicatively connected to the feeding control subunit and is used to operate according to the feeding action sequence under the control of the feeding control subunit. The translation motor is also communicatively connected to the discharging control subunit and is used to operate according to the discharging action sequence under the control of the discharging control subunit.

[0035] Preferably, the transfer roller assembly includes: a transfer roller bracket, a transfer roller group, and a transfer roller driver; the transfer roller bracket is fixedly mounted on the top of the translation assembly; the transfer roller group is mounted on the transfer roller bracket; the transfer roller driver is drivenly connected to the transfer roller group and is used to drive the transfer roller group to rotate; the transfer roller driver is communicatively connected to the feeding control subunit and the discharging control subunit, respectively, and is used to perform actions according to the feeding action sequence under the control of the feeding control subunit, and to perform actions according to the discharging action sequence under the control of the discharging control subunit.

[0036] The rotary transmission assembly includes a rotary reducer, a small rotary gear, a large rotary gear, a rotary support plate, a rotary connecting shaft, and a connecting bearing.

[0037] The input end of the rotary reducer is fixedly connected to the output end of the rotary motor, and its output end is fixedly connected to the rotary pinion; the rotary support pad is fixedly disposed at the center of the top of the transfer base; the rotary large gear is disposed on the top of the rotary support pad and meshes with the rotary pinion; the connecting bearing is fixedly disposed at the axial center of the rotary support pad, the lower part of the rotary connecting shaft is fixedly connected to the connecting bearing, the middle part is fixedly connected to the rotary large gear, and the upper part is fixedly connected to the axial axis of the rotary base plate.

[0038] Preferably, the bottom of the rotating base plate has a rotating groove that surrounds the periphery of the large rotating gear;

[0039] The transfer mechanism further includes a rotating support assembly; the rotating support assembly corresponds to the rotating groove and is used to provide auxiliary support for the rotating base plate during rotation; the rotating support assembly includes: four bullseye support bases, four bullseye support shafts, and four bullseye bearings; the four bullseye support bases are fixedly installed at the four corners of the top of the transfer base; the four bullseye support shafts are respectively fixedly installed on the four bullseye support bases; the four bullseye bearings are respectively fixedly installed on the four bullseye support shafts; the tops of the four bullseye bearings match the rotating groove;

[0040] The translation component includes a translation adapter block, two translation guide rails, two sets of translation sliders, and four translation limit blocks;

[0041] The two translation guide rails are arranged parallel to each other on both sides of the top of the rotating base plate; the two sets of translation sliders are slidably arranged on the two translation guide rails respectively, and the top of each translation slider is fixedly connected to the corresponding transfer roller bracket; one end of the translation adapter block is fixedly connected to one set of translation sliders, and the other end is fixedly connected to the push head mounting plate of the translation electric cylinder; under the drive of the translation electric cylinder, the translation adapter block drives the translation slider and the transfer roller bracket on it to slide along the translation guide rails; the four translation limit blocks are fixedly arranged at the front and rear ends of the two translation guide rails respectively to limit the sliding stroke of the translation slider.

[0042] Preferably, the lifting mechanism includes a lifting motor, a first transmission assembly, two driving pulleys, two synchronous belts, two driven pulleys, two lifting guide rails, two sets of lifting sliders, two pressure blocks, and a connecting plate;

[0043] The lifting motor is fixedly mounted on the top of the three-dimensional buffer rack; the two drive pulleys are fixedly mounted on both ends of the top of the three-dimensional buffer rack; the input end of the first transmission component is connected to the output end of the lifting motor, and its output end is connected to the two drive pulleys respectively, for driving the two drive pulleys to rotate synchronously under the drive of the lifting motor; the two driven pulleys are fixedly mounted on both sides of the bottom front end of the three-dimensional buffer rack respectively, and are respectively connected to the two drive pulleys through the corresponding synchronous belts;

[0044] The two lifting guide rails are respectively disposed at the front end of the three-dimensional buffer rack and are respectively located beside the two synchronous belts; the two pressure blocks are respectively fixed on the corresponding synchronous belts; the two sets of lifting sliders are respectively slidably disposed on the corresponding lifting guide rails and are located beside the corresponding pressure blocks;

[0045] The connecting plate is fixedly connected to the transfer base at the center of one side facing the transfer mechanism, and fixedly connected to the corresponding lifting slider and the pressure block on both sides of the other side facing the three-dimensional buffer mechanism, respectively.

[0046] The lifting motor drives the two active pulleys and the two driven pulleys to rotate, thereby driving the two synchronous belts to move up and down along the three-dimensional buffer frame, and driving the transfer mechanism to move up and down along the lifting guide rail through the pressure block and the lifting slider.

[0047] The lifting motor is communicatively connected to the feeding control subunit and the discharging control subunit, respectively, and is used to operate according to the feeding action sequence under the control of the feeding control subunit; and to operate according to the discharging action sequence under the control of the discharging control subunit.

[0048] Preferably, the front-end feeding mechanism includes: a front-end main support and a front-end roller assembly disposed on the front-end main support;

[0049] The front-end roller assembly includes: a front-end roller bracket, a front-end roller group, and a front-end roller driver; the front-end roller bracket is fixedly mounted on both sides of the top of the front-end main bracket; the front-end roller group is mounted on the front-end roller bracket; the front-end roller driver is drivenly connected to the front-end roller group and is used to drive the front-end roller group to rotate; the front-end roller driver is communicatively connected to the feeding control subunit and the discharging control subunit, respectively, and is used to perform actions according to the feeding action sequence under the control of the feeding control subunit, and to perform actions according to the discharging action sequence under the control of the discharging control subunit.

[0050] The rear discharge mechanism includes a rear main support and a rear roller line assembly mounted thereon;

[0051] The rear roller assembly includes: a rear roller support, a rear roller group, and a rear roller driver; the rear roller support is fixedly mounted on both sides of the top of the rear main support; the rear roller group is mounted on the rear roller support; the rear roller driver is drivenly connected to the rear roller group and is used to drive the rear roller group to rotate; the rear roller driver is communicatively connected to the feeding control subunit and the discharging control subunit, respectively, and is used to perform actions according to the feeding action sequence under the control of the feeding control subunit, and to perform actions according to the discharging action sequence under the control of the discharging control subunit.

[0052] The three-dimensional caching mechanism also includes a cache library component disposed in each of the cache library locations;

[0053] The buffer assembly includes: a buffer roller support, a buffer roller assembly, and a buffer roller driver; the buffer roller support is fixedly mounted on the three-dimensional buffer frame, the buffer roller assembly is mounted on the buffer roller support, and the buffer roller driver is drivenly connected to the buffer roller assembly to drive the buffer roller assembly to rotate; the buffer roller driver is communicatively connected to both the feeding control subunit and the discharging control subunit, and is used to perform actions according to the feeding action sequence under the control of the feeding control subunit, and to perform actions according to the discharging action sequence under the control of the discharging control subunit.

[0054] The aforementioned ingot buffer device, by setting up a front-end feeding mechanism that interfaces with the AGV and a rear-end discharging mechanism that interfaces with the next process, and by setting up a transfer mechanism that is connected to the three-dimensional buffer mechanism via a lifting mechanism, and the transfer mechanism can rotate to flexibly interface with the front-end feeding mechanism, the rear-end discharging mechanism, and the transfer mechanism, and by controlling the front-end feeding mechanism, the transfer mechanism, the lifting mechanism, and the rear-end discharging mechanism to cooperate, realizes the conveying and buffering of cylindrical ingots to be inspected. Compared with the existing technology, on the one hand, when there is a large amount of material coming in during the cutting and grinding processes, the AGV can only complete a short "material-return" action, without having to wait in long queues at the entrance of the final inspection process, effectively breaking the bottleneck of AGVs being forced to stop due to long final inspection time, freeing up AGV transport capacity, and enabling them to quickly return to the production line for the next process. One-round operation significantly improves the turnover and utilization rate of shared AGVs in the workshop. On the other hand, by setting up a three-dimensional buffer mechanism, the ground space occupied by buffered materials is greatly reduced. This not only solves the space waste problem caused by AGV congestion at the entrance of the final inspection process, but also provides a structural foundation for the production line to be transformed towards a more compact and efficient direction. Furthermore, the aforementioned front-end material receiving mechanism, transfer mechanism, and back-end material discharging mechanism, in cooperation with the control mechanism, enable the present invention to control the coordinated operation of the front-end material receiving mechanism, the transfer mechanism, the lifting mechanism, and the back-end material discharging mechanism according to the request of the production line's main controller, so as to store or retrieve crystal ingots into or out of the buffer storage location. This ensures orderly buffering during peak material receiving periods and smooth supply during peak material discharging periods, realizing high efficiency in crystal ingot circulation and intensive space utilization. Attached Figure Description

[0055] Figure 1 This is a schematic diagram of the overall connection relationship of the ingot buffer device in this invention.

[0056] Figure 2 This is a schematic diagram of the connection relationship of the controller in this invention.

[0057] Figure 3 This is a schematic diagram of the storage location allocation unit in this invention.

[0058] Figure 4 This is a schematic diagram of the timing setting unit in this invention.

[0059] Figure 5 This is a schematic diagram of the material inlet / outlet control unit in this invention.

[0060] Figure 6 This is a schematic diagram of the overall three-dimensional structure of the ingot caching device in this invention.

[0061] Figure 7 This is a detailed three-dimensional structural diagram of the transfer mechanism (including some components of the lifting mechanism and the cache barcode scanner) in this invention.

[0062] Figure 8 This is a detailed structural diagram of the rotary transmission assembly and rotary support assembly of the transfer mechanism in this invention (including some components of the lifting mechanism and the cache barcode scanner).

[0063] Figure 9 This is a detailed structural diagram of the rotating base plate of the transfer mechanism in this invention and its translation component (with translation electric cylinder).

[0064] Figure 10 This is a detailed structural diagram of the bottom of the rotating base plate of the transfer mechanism in this invention.

[0065] Figure 11 This is a detailed structural diagram of the three-dimensional buffer mechanism and lifting mechanism (with buffer location barcode scanner) in this invention.

[0066] Figure 12 This is a detailed structural diagram of the lower part of the three-dimensional buffer mechanism in this invention.

[0067] Figure 13 This is a detailed structural diagram of the upper part of the three-dimensional buffer mechanism in this invention.

[0068] Figure 14 This is a schematic diagram of the overall structure of the three-dimensional buffer mechanism (with a drag chain and lifting mechanism) in this invention.

[0069] Figure 15 This is a detailed structural diagram of the front-end feeding mechanism in this invention.

[0070] Figure 16 This is a detailed structural diagram of the back-end unloading mechanism in this invention.

[0071] In the diagram: Control mechanism 1; Controller 10; Inbound / outbound queue control unit 100; Storage location allocation unit 101; Inbound storage location allocation subunit 1010; Outbound storage location allocation subunit 1011; Timing setting unit 102; Inbound timing setting subunit 1020; Outbound timing setting subunit 1021; Inbound / outbound control unit 103; Inbound control subunit 1030; Outbound control subunit 1031; Storage location information update unit 104; Memory 11; Inbound timing storage unit 110; Outbound timing storage unit 111; Storage location information storage unit 112; Detector 12; Ingot scanning assembly 120; Scanning bracket 1200; 1201 Electric cylinder for barcode scanning; 1202 Barcode camera bracket; 1203 Barcode camera; 1204 Barcode light source bracket; 1205 Barcode light source; 121 Barcode reader for buffer storage location; 2 Front-end feeding mechanism; 20 Front-end main support; 21 Front-end roller assembly; 210 Front-end roller support; 211 Front-end roller group; 2110 Front-end powered roller; 2111 Front-end unpowered roller; 2112 Front-end transmission chain; 212 Front-end roller driver; 3 Transfer mechanism; 30 Transfer base; 31 Rotary motor; 32 Rotary transmission assembly; 320 Rotary pinion; 321 Rotary gear; 322 Rotary support plate; 323 Rotary connecting shaft; Rotary... Base plate 33; Rotating trough 330; Transfer roller assembly 34; Transfer roller bracket 340; Transfer roller group 341; Transfer powered roller 3410; Transfer unpowered roller 3411; Transfer transmission chain 3412; Translation electric cylinder 35; Translation assembly 36; Translation adapter block 360; Translation guide rail 361; Translation slider 362; Translation limit block 363; Rotation support assembly 37; Bullseye support base 370; Bullseye support shaft 371; Bullseye bearing 372; Lifting mechanism 4; Lifting motor 40; First transmission assembly 41; First pulley 410; Second pulley 411; Transmission belt 412; Bearing seat 413; Transmission bearing 41 4; Drive shaft 415; Drive pulley 42; Synchronous belt 43; Driven pulley 44; Lifting guide rail 45; Lifting slider 46; Pressure block 47; Connecting plate 48; Cable chain frame 49; Cable chain 490; Three-dimensional buffer mechanism 5; Buffer storage location 50; Three-dimensional buffer rack 51; Barcode belt 52; Buffer storage roller assembly 53; Buffer storage roller support 530; Buffer storage roller group 531; Buffer storage powered roller 5310; Buffer storage unpowered roller 5311; Rear discharge mechanism 6; Rear total support 60; Rear roller support 61; Rear roller group 62; Rear powered roller 620; Rear unpowered roller 621; Rear transmission chain 622; Production line main controller 7. Detailed Implementation

[0072] The technical solutions and effects of the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0073] Please refer to Figure 1 and6 As shown, a crystal ingot buffer device includes: a control mechanism 1, and a front-end feeding mechanism 2, a transfer mechanism 3, a lifting mechanism 4, a three-dimensional buffer mechanism 5, and a rear-end discharging mechanism 6, all electrically connected to the control mechanism 1. One end of the transfer mechanism 3 is connected to the outlet end of the front-end feeding mechanism 2, and the other end is connected to the inlet end of the rear-end discharging mechanism 6. The transfer mechanism 3 is also connected to the three-dimensional buffer mechanism 5 via the lifting mechanism 4. The transfer mechanism 3 is rotatable and can flexibly dock with the front-end feeding mechanism 2, the three-dimensional buffer mechanism 5, and the rear-end discharging mechanism 6 to transport cylindrical crystal ingots.

[0074] The three-dimensional cache mechanism 5 includes a three-dimensional cache rack 51, several cache storage locations 50, and a barcode strip 52; the several cache storage locations 50 are evenly distributed in the three-dimensional cache rack 51 along the vertical direction; the barcode strip 52 is fixedly installed on one side of the front end of the three-dimensional cache rack 51, and the barcode strip 52 is provided with corresponding storage location barcodes at positions corresponding to each cache storage location 50.

[0075] The control mechanism 1 includes a controller 10 and a memory 11. The controller 10 is communicatively connected to the production line main controller 7 and is used to receive material feeding requests or material discharging requests sent by the production line main controller 7. The controller 10 is configured to control the front-end material feeding mechanism 2, the transfer mechanism 3, the lifting mechanism 4 and the rear-end material discharging mechanism 6 to work together to store or retrieve the crystal ingots into or out of the buffer storage location 50 according to the received material feeding request or material discharging request. The memory 11 is communicatively connected to the controller 10 and is used to store the status information of each buffer storage location 50.

[0076] The aforementioned ingot buffer device, by setting up a front-end feeding mechanism 2 to connect with the AGV, a rear-end discharging mechanism 6 to connect with the next process, and a transfer mechanism 3 connected to the three-dimensional buffer mechanism 5 via a lifting mechanism 4, is rotatable and can flexibly connect with the front-end feeding mechanism 2, the rear-end discharging mechanism 6, and the transfer mechanism 3. The control mechanism 1 controls the front-end feeding mechanism 2, the transfer mechanism 3, the lifting mechanism 4, and the rear-end discharging mechanism 6 to cooperate in conveying and buffering cylindrical ingots to be inspected. Compared with existing technologies, this device allows the AGV to complete only a short "incoming-return" action when there is a high volume of incoming materials during the cutting and grinding processes, eliminating the need for long queues at the final inspection entrance. This effectively breaks the bottleneck of AGVs being forced to stop due to long final inspection times, freeing up AGV transport capacity and enabling them to return quickly. The production line proceeds to the next cycle, significantly improving the turnover and utilization rate of the workshop's shared AGVs. On the other hand, by setting up a three-dimensional buffer mechanism 5, the ground space occupied by buffered materials is greatly reduced. This not only solves the space waste problem caused by AGV congestion at the entrance of the final inspection process, but also provides a structural foundation for the production line to be transformed towards a more compact and efficient direction. Furthermore, the aforementioned front-end feeding mechanism 2, transfer mechanism 3, and rear-end discharging mechanism 6, in cooperation with the control mechanism 1, enable the present invention to control the front-end feeding mechanism 2, transfer mechanism 3, lifting mechanism 4, and rear-end discharging mechanism 6 to work together according to the request of the production line's main controller 7, so as to store or retrieve crystal ingots into or out of the buffer storage location 50. This ensures orderly buffering during peak material arrival periods and smooth supply during peak material discharge periods, achieving high efficiency in crystal ingot circulation and intensive space utilization.

[0077] Further, please see Figure 1 and 2 As shown, the controller 10 includes: an inbound / outbound queue control unit 100, a storage location allocation unit 101, a timing setting unit 102, and an inbound / outbound material control unit 103;

[0078] The inbound / outbound queue control unit 100 is used to communicate with the production line master controller 7 and receive the inbound and outbound requests sent by the production line master controller 7, arrange them into a task queue according to the order of the time the requests are generated, and generate the first inbound signal and the first outbound signal.

[0079] The storage location allocation unit 101 is used to allocate a target cache storage location 50 to the currently fed ingot when the first feeding signal is received; and to query the storage unit to determine the discharge storage location when the first discharge signal is received; the storage location allocation unit 101 is communicatively connected to the memory 11; the storage location allocation unit 101 needs to query the memory 11 before allocating the target cache storage location 50 and determining the discharge storage location;

[0080] The timing setting unit 102 is used to set the feeding action timing of the front-end feeding mechanism 2, the transfer mechanism 3 and the lifting mechanism 4 and generate a second feeding signal after receiving the target buffer storage location 50 sent by the storage location allocation unit 101; and to set the discharging action timing of the lifting mechanism 4, the transfer mechanism 3 and the rear-end discharging mechanism 6 and generate a second discharging signal after receiving the discharging storage location sent by the storage location allocation unit 101; after completing the feeding timing setting and the discharging timing setting, the timing setting unit 102 sends the completed feeding timing and discharging timing to the memory 11 for storage;

[0081] The infeed / outfeed control unit 103 is used to control the front-end infeed mechanism 2, the transfer mechanism 3, and the lifting mechanism 4 to operate sequentially according to the infeed action timing after receiving the second infeed signal, so as to transport the infeed ingot to the target buffer storage location 50 and return the pallet to the AGV along the original route; and to control the transfer mechanism 3, the lifting mechanism 4, and the rear-end outfeed mechanism 6 to operate sequentially according to the outfeed action timing after receiving the second outfeed signal, so as to transport the outfeed ingot to the next process; the infeed / outfeed control unit 103 is communicatively connected to the timing setting unit 102 and the memory 11 respectively. After receiving the second infeed signal, it queries the infeed action timing stored in the memory 11 and controls the front-end infeed mechanism 2, the transfer mechanism 3, and the lifting mechanism 4 to operate sequentially according to the infeed action timing. After receiving the second outfeed signal, it controls the transfer mechanism 3, the lifting mechanism 4, and the rear-end outfeed mechanism 6 to operate sequentially according to the outfeed action timing.

[0082] The memory 11 is communicatively connected to the controller 10 and is used to store the feeding timing action, the discharging timing action, and the status information of each buffer location 50.

[0083] In this embodiment, when there are multiple material infeed requests and multiple material outfeed requests at the same time, the infeed queue control unit 100 sorts them according to the principle of "material outfeed takes priority over material infeed". That is, all material outfeed tasks are processed first, and then material infeed tasks are processed. This is to ensure the continuous material supply needs of the back-end material outfeed process and avoid material outfeed blockage caused by the full load of the buffer storage space 50.

[0084] In this embodiment, by setting an inbound / outbound queue control unit 100, a storage location allocation unit 101, a timing setting unit 102, and an inbound / outbound material control unit 103 in the controller 10, and by cooperating the above units with the front-end feeding mechanism 2, the transfer mechanism 3, the lifting mechanism 4, and the rear-end discharging mechanism 6, the present invention can generate the optimal feeding and discharging action sequence according to the request of the production line master controller 7. This can effectively avoid material accumulation caused by mismatch in process cycle time, enhance the device's anti-congestion capability, ensure orderly buffering during peak material arrival periods and smooth supply during peak material discharge periods, and realize the high efficiency of ingot circulation and the intensive use of space.

[0085] Further, please see Figure 1 , 2 As shown in Figures 4, 5, 11 and 12, in order to improve operational efficiency, achieve a high degree of coordination between material infeed and discharge actions, and ensure the real-time accuracy of storage location status, the storage location allocation unit 101 includes: a material infeed storage location allocation subunit 1010 and a material outfeed storage location allocation subunit 1011.

[0086] The feeding storage location allocation subunit 1010 is used to allocate a target buffer storage location 50 for the current feeding ingot according to the preset feeding storage location allocation strategy when the first feeding signal is received, and send it to the timing setting unit 102 after the allocation is completed, and generate a first update signal; the feeding storage location allocation strategy is: give priority to allocating the vacant buffer storage location 50 closest to the ground;

[0087] The material discharge location allocation subunit 1011 is used to query the status information of each cache location 50 in the storage unit according to the preset material discharge location allocation strategy when the first material discharge signal is received, determine the material discharge location, and send it to the timing setting unit 102 after the allocation is completed; the material discharge location allocation strategy is: among all crystal ingots with the required length, the crystal ingot that was put into storage earliest is selected first.

[0088] The timing setting unit 102 includes: a feeding timing setting subunit 1020 and a discharging timing setting subunit 1021;

[0089] The feeding timing setting subunit 1020 is used to set the feeding action timing of the front-end feeding mechanism 2, the transfer mechanism 3 and the lifting mechanism 4 after receiving the target buffer location 50 sent by the feeding location allocation subunit 1010, and to generate a second feeding signal.

[0090] The discharge timing setting subunit 1021 is used to set the discharge action timing of the lifting mechanism 4, the transfer mechanism 3 and the rear discharge mechanism 6 after receiving the discharge location sent by the discharge location allocation subunit 1011, and to generate a second discharge signal.

[0091] The infeed and outfeed control unit 103 includes: infeed control subunit 1030 and outfeed control subunit 1031; the infeed control subunit 1030 is used to control the front-end infeed mechanism 2, the transfer mechanism 3 and the lifting mechanism 4 to operate in sequence according to the infeed action timing after receiving the first infeed signal and the second infeed signal, to transport the ingot to the target buffer storage location 50 and return the tray to the AGV along the original route, and generate the third infeed signal after completion;

[0092] The discharge control subunit 1031 is used to control the transfer mechanism 3, the lifting mechanism 4 and the rear discharge mechanism 6 to operate sequentially according to the discharge action sequence after receiving the first discharge signal and the second discharge signal, so as to transport the discharged ingot to the next process and generate the third discharge signal after completion.

[0093] The control mechanism 1 also includes: a storage location information update unit 104, which is used to update the occupancy status of each cache storage location 50 in real time after receiving the first update signal or the third feeding signal, or after receiving the third discharging signal, and write the updated status information into the memory 11; the first update signal is generated when allocating the target cache storage location 50, indicating that the storage location has been locked; the third feeding signal is generated after the feeding is completed, indicating that the storage location has been occupied; the third discharging signal is generated after the discharging is completed, indicating that the storage location has been vacated.

[0094] The memory 11 includes: a feeding timing storage unit 110, a discharging timing storage unit 111, and a storage location information storage unit 112;

[0095] The feeding timing storage unit 110 is used to store the feeding action timing set by the feeding timing setting subunit 1020. The feeding action timing includes the timing of the actions of the front feeding mechanism 2, the transfer mechanism 3, and the lifting mechanism 4.

[0096] The discharge timing storage unit 111 is used to store the discharge action timing set by the discharge timing setting subunit 1021. The discharge action timing includes the timing of the actions of the lifting mechanism 4, the transfer mechanism 3 and the rear discharge mechanism 6.

[0097] The storage location information storage unit 112 is communicatively connected to the storage location barcode on the barcode tape 52. It is used to store the status information of each cache storage location 50 and to receive and store the updated status information sent by the storage location information update unit 104 in real time. The status information includes whether the storage location is empty, occupied, or locked, as well as the theoretical length value, storage time, and storage duration of the ingot in the storage location. Locking means that the cache storage location 50 has been marked as the target cache storage location 50 and is waiting for the ingot to be stored. When the storage location information update unit 104 receives the first update signal, it updates the target cache storage location 50 to the locked state.

[0098] In this embodiment, the storage location allocation strategy is optimized on top of the basic caching function, improving the space utilization and operational efficiency of the cache storage location 50. Specifically, the feeding storage location allocation subunit 1010 adopts the strategy of "prioritizing the allocation of the vacant storage location closest to the ground". On the one hand, this allows the crystal ingots to fill the lower storage locations first, reducing the energy consumption and operation time required for the lifting mechanism 4 to frequently perform large-scale lifting and lowering, and improving the feeding speed. On the other hand, the discharging storage location allocation subunit 1011 adopts the strategy of "prioritizing the crystal ingot that was first put into storage among all crystal ingots that meet the length requirements". This strictly follows the first-in, first-out principle, effectively preventing the quality risks caused by crystal ingots being stored in the cache storage location 50 for too long, while ensuring that the length specifications of the discharged crystal ingots are accurately matched with the requirements of the next process.

[0099] In this embodiment, the division of time control tasks is refined to achieve a high degree of coordination between feeding and discharging actions. Specifically, the time setting unit 102 is divided into a feeding time setting subunit 1020 and a discharging time setting subunit 1021, and the feeding action time sequence and the discharging action time sequence are set independently, thereby realizing the decoupling and parallel planning of the feeding process and the discharging process.

[0100] In this embodiment, by setting up a storage location information update unit 104, the occupancy status of each cache storage location 50 is updated immediately after each feeding or discharging action, and the updated status information is written into the memory 11, forming a closed-loop management of "action execution - status update - information storage". With the communication connection between the storage location information storage unit 112 and the storage location barcode on the barcode tape 52, the controller 10 can obtain the vacancy, occupancy or lock status of each cache storage location 50 in real time, as well as key parameters such as the theoretical length value of the crystal ingot in the storage location, storage time and storage duration. This not only provides accurate data support for the decision-making of the storage location allocation unit 101, but also provides transparent cache information for the global scheduling of the production line master controller 7, enhancing the traceability and controllability of the entire crystal ingot circulation process.

[0101] Further, please see Figure 1 , 7 As shown in Figures 1 and 15, the control mechanism 1 also includes a detector 12;

[0102] The detector 12 includes: an ingot scanning component 120 and a cache storage location reader 121; the ingot scanning component 120 is fixedly installed on the front-end feeding mechanism 2 and is used to scan the QR code on the side of the feeding ingot to obtain the theoretical length value of the feeding ingot, and write it into the storage location information storage unit 112 through the storage location information update unit 104.

[0103] The cache location barcode reader 121 is fixedly installed on the lifting mechanism 4 at a position opposite to the barcode strip 52. It is used to scan the location barcode on the barcode strip 52 to obtain the location information. It is used to assist the infeed and outfeed control unit 103 in controlling the lifting mechanism 4 to find the target cache location 50 or the outfeed location.

[0104] In this embodiment, the ingot scanning assembly 120 comprises a scanning bracket 1200, a scanning electric cylinder 1201, a scanning camera bracket 1202, a scanning camera 1203, a scanning light source bracket 1204, and a scanning light source 1205. The scanning bracket 1200 is fixedly mounted on the top of one side of the front-end feeding mechanism 2. The scanning electric cylinder 1201 is fixedly mounted on the scanning bracket 1200. The scanning camera bracket 1202 and the scanning light source bracket 1204 are both mounted on the scanning electric cylinder. On the pusher mounting plate at the top of 1201, the barcode light source bracket 1204 is located on the inner side near the crystal ingot; the barcode camera 1203 is fixedly mounted on the barcode camera bracket 1202; the barcode light source 1205 is fixedly mounted on the barcode light source bracket 1204; driven by the barcode electric cylinder 1201, the pusher mounting plate at the top of the barcode electric cylinder 1201 drives the barcode camera 1203 and the barcode light source 1205 to move, which facilitates scanning the QR codes on the sides of crystal ingots of different lengths.

[0105] In this embodiment, by setting the storage location barcode on the barcode strip 52 at the front end of the three-dimensional cache rack 51 and cooperating with the cache storage location barcode reader 121 on the lifting mechanism 4, the cache storage location barcode reader 121 can accurately scan the barcode information of the current corresponding storage location regardless of the height of the lifting mechanism 4, thereby improving the docking accuracy and reliability between the lifting mechanism 4 and the target cache storage location 50.

[0106] Further, please see Figure 7 and 8 As shown, in order to realize the rotation of the transfer mechanism 3 and facilitate the transport of cylindrical crystal ingots, the transfer mechanism 3 includes a transfer base 30, a rotary motor 31, a rotary transmission assembly 32, a rotary base plate 33, and a transfer roller assembly 34.

[0107] A rotary motor 31 is located in one corner of the transfer base 30; a rotary transmission assembly 32 is located on the top of the transfer base 30, with its input end connected to the output end of the rotary motor 31; a rotating base plate 33 is horizontally positioned above the rotary transmission assembly 32, with its bottom fixedly connected to the output end of the rotary transmission assembly 32; a transfer roller assembly 34 is located on the top of the rotating base plate 33; the rotary motor 31 drives the rotary transmission assembly 32, thereby causing the rotating base plate 33 and the transfer roller assembly 34 on it to rotate in the horizontal plane, making the transfer rollers... The line assembly 34 can rotate to different directions as needed and dock with the front feeding mechanism 2, the rear discharging mechanism 6, or the three-dimensional buffer mechanism 5; the rotary motor 31 and the intermediate roller line assembly 34 are respectively connected to the feeding control subunit 1030 for operation according to the feeding action sequence under the control of the feeding control subunit 1030; the rotary motor 31 and the intermediate roller line assembly 34 are respectively connected to the discharging control subunit 1031 for operation according to the discharging action sequence under the control of the discharging control subunit 1031.

[0108] In this embodiment, the rotation angle of the rotating base plate 33 in the horizontal plane is 0°-360°, which can meet the requirements of the front feeding mechanism 2, the rear discharging mechanism 6 and the three-dimensional buffer mechanism 5 to be arranged at any angle in the circumferential direction, and further improve the arrangement flexibility of the device.

[0109] In this embodiment, a rotary motor 31 is installed in one corner of the transfer base 30, and the driving force is transmitted to the rotating base plate 33 by the rotary transmission assembly 32. This allows the rotary motor 31 to not occupy the upper space of the rotating base plate 33, and the transfer roller assembly 34 can be directly installed above the rotating base plate 33. The overall structure is compact, reducing the equipment footprint and facilitating flexible layout in the production line. At the same time, the rotary motor 31 drives the rotary transmission assembly 32, which, in conjunction with the transfer roller assembly 34, can be adapted to cylindrical ingots. This allows the transfer roller assembly 34 to selectively dock with the front-end feeding mechanism 2, the rear-end discharging mechanism 6, or the three-dimensional buffer mechanism 5 according to process requirements, meeting the ingot conveying needs under different working conditions and ensuring the stability of the ingot posture during direction switching. This allows the transfer mechanism 3 to serve the feeding, buffering, and discharging directions simultaneously, effectively reducing equipment manufacturing costs while ensuring functional integrity.

[0110] Further, please see Figure 7 and 9 As shown, in order to shorten the space reserved for the rotation of the rotating base plate 33 when the transfer mechanism 3 docks with the front-end feeding mechanism 2, the rear-end discharging mechanism 6, and the three-dimensional buffer mechanism 5, and to make the ingot transport more stable, the transfer mechanism 3 also includes a translation electric cylinder 35 and a translation component 36; both the translation electric cylinder 35 and the translation component 36 are set on the top of the rotating base plate 33; the translation electric cylinder 35 is connected to the input end of the translation component 36; the transfer roller assembly 34 is set on the top of the translation component 36; the translation electric cylinder 35 drives the translation component 36, thereby driving the transfer roller assembly 34 to move horizontally on the rotating base plate 33; so that the ingot is transported more smoothly. When the rotary drum assembly 34 is docking with the front feeding mechanism 2, the rear discharging mechanism 6, and the three-dimensional buffer mechanism 5 to transport crystal ingots, it can be moved to a position closer to the front feeding mechanism 2, the rear discharging mechanism 6, and the three-dimensional buffer mechanism 5, shortening the space reserved for the rotation of the rotating base plate 33; the translation electric cylinder 35 is communicatively connected to the feeding control subunit 1030 and is used to perform actions according to the feeding action sequence under the control of the feeding control subunit 1030; the translation electric cylinder 35 is communicatively connected to the discharging control subunit 1031 and is used to perform actions according to the discharging action sequence under the control of the discharging control subunit 1031.

[0111] In this embodiment, since the rotating base plate 33 requires space when rotating, the front feeding mechanism 2, the rear discharging mechanism 6, and the three-dimensional buffer mechanism 5 need to reserve enough space in their spatial arrangement to allow the transfer mechanism 3 to rotate. However, when the crystal ingot is transported between the mechanisms, a translation electric cylinder 35 and a translation component 36 are provided so that the translation electric cylinder 35 drives the translation component 36, thereby driving the transfer roller assembly 34 to translate on the rotating base plate 33, shortening the space reserved between the mechanisms for the rotation of the rotating base plate 33, and making the transport of the crystal ingot between the mechanisms more stable.

[0112] Further, please see Figure 7 and 8 As shown, in order to better transport cylindrical ingots, the transfer roller line assembly 34 includes: a transfer roller support 340, a transfer roller group 341, and a transfer roller driver; the transfer roller support 340 is fixedly mounted on the top of the translation assembly 36; the transfer roller group 341 is mounted on the transfer roller support 340; the transfer roller driver is drivenly connected to the transfer roller group 341 to drive the transfer roller group 341 to rotate; the transfer roller driver is communicatively connected to the feeding control subunit 1030 and the discharging control subunit 1031 respectively, and is used to perform actions according to the feeding action sequence under the control of the feeding control subunit 1030, and to perform actions according to the discharging action sequence under the control of the discharging control subunit 1031.

[0113] The rotary transmission assembly 32 includes a rotary reducer, a rotary pinion 320, a rotary gear 321, a rotary support plate 322, a rotary connecting shaft 323, and a connecting bearing;

[0114] The input end of the rotary reducer is fixedly connected to the output end of the rotary motor 31, and its output end is fixedly connected to the rotary pinion 320; the rotary support plate 322 is fixedly set at the center of the top of the intermediate base 30; the rotary large gear 321 is set on the top of the rotary support plate 322 and meshes with the rotary pinion 320; the connecting bearing is fixedly set at the axial center of the rotary support plate 322, the lower part of the rotary connecting shaft 323 is fixedly connected to the connecting bearing, the middle part is fixedly connected to the rotary large gear 321, and the upper part is fixedly connected to the axial axis of the rotary base plate 33.

[0115] In this embodiment, the transfer roller assembly 341 consists of a parallel transfer power roller 3410 and multiple transfer non-powered rollers 3411, as well as a transfer transmission chain 3412. The transfer roller driver and the transfer power roller 3410 are driven to rotate the transfer power roller 3410. The transfer power roller 3410 and the adjacent transfer non-powered rollers 3411, as well as each adjacent transfer non-powered roller 3411, are sequentially connected by the transfer transmission chain 3412, thereby achieving synchronous rotation under the drive of the transfer roller driver.

[0116] Further, please see Figure 8 and 10 As shown, in order to improve the stability of the transfer mechanism 3 during rotation and translation, a rotating groove 330 is provided at the bottom of the rotating base plate 33 to surround the outer periphery of the rotating large gear 321.

[0117] The transfer mechanism 3 also includes a rotating support assembly 37; the rotating support assembly 37 corresponds to the rotating groove 330 and is used to provide auxiliary support for the rotating base plate 33 during rotation; the rotating support assembly 37 includes: four bullseye support bases 370, four bullseye support shafts 371, and four bullseye bearings 372; the four bullseye support bases 370 are fixedly installed at the four corners of the top of the transfer base 30; the four bullseye support shafts 371 are respectively fixedly installed on the four bullseye support bases 370; the four bullseye bearings 372 are respectively fixedly installed on the four bullseye support shafts 371; the tops of the four bullseye bearings 372 match the rotating groove 330;

[0118] Translation component 36 includes translation adapter block 360, two translation guide rails 361, two sets of translation sliders 362 and four translation limit blocks 363;

[0119] Two translation guide rails 361 are arranged parallel to each other on both sides of the top of the rotating base plate 33; two sets of translation sliders 362 are slidably arranged on the two translation guide rails 361 respectively, and the top of each set of translation sliders 362 is fixedly connected to the corresponding transfer roller bracket 340; one end of the translation adapter block 360 is fixedly connected to a set of translation sliders 362, and the other end is fixedly connected to the push head mounting plate of the translation electric cylinder 35; under the drive of the translation electric cylinder 35, the translation adapter block 360 drives the translation slider 362 and the transfer roller bracket 340 on it to slide along the translation guide rail 361; four translation limit blocks 363 are fixedly arranged at the front and rear ends of the two translation guide rails 361 respectively, and are used to limit the sliding stroke of the translation slider 362.

[0120] Further, please see Figure 11 , 12 As shown in 13 and 14, in order to improve the stability of the transfer mechanism 3 when it is raised and lowered along the three-dimensional buffer rack 51, the lifting mechanism 4 includes a lifting motor 40, a first transmission component 41, two driving pulleys 42, two synchronous belts 43, two driven pulleys 44, two lifting guide rails 45, two sets of lifting sliders 46, two pressure blocks 47 and a connecting plate 48.

[0121] A lifting motor 40 is fixedly mounted on the top of the three-dimensional buffer frame 51; two drive pulleys 42 are fixedly mounted at both ends of the top of the three-dimensional buffer frame 51; the input end of the first transmission component 41 is connected to the output end of the lifting motor 40, and its output end is connected to the two drive pulleys 42 respectively, for driving the two drive pulleys 42 to rotate synchronously under the drive of the lifting motor 40; two driven pulleys 44 are fixedly mounted on both sides of the bottom front end of the three-dimensional buffer frame 51 respectively, and are respectively connected to the two drive pulleys 42 through corresponding synchronous belts 43; two lifting guide rails 45 are respectively mounted on the front end of the three-dimensional buffer frame 51, and are respectively located beside the two synchronous belts 43; two pressure blocks 47 are respectively fixed on the corresponding synchronous belts 43; two sets of lifting sliders 46 are respectively slidably mounted on the corresponding lifting guide rails 45, and are located beside the corresponding pressure blocks 47;

[0122] The middle of the side of the connecting plate 48 facing the transfer mechanism 3 is fixedly connected to the transfer base 30, and the two sides of the other side facing the three-dimensional buffer mechanism 5 are fixedly connected to the corresponding lifting slider 46 and pressure block 47 respectively; the lifting motor 40 drives the two active pulleys 42 and the two driven pulleys 44 to rotate, thereby driving the two synchronous belts 43 to move up and down along the three-dimensional buffer frame 51, and driving the transfer mechanism 3 to move up and down along the lifting guide rail 45 through the pressure block 47 and the lifting slider 46;

[0123] The lifting motor 40 is communicatively connected to the feeding control subunit 1030 and the discharging control subunit 1031, respectively, and is used to perform actions according to the feeding action sequence under the control of the feeding control subunit 1030; and to perform actions according to the discharging action sequence under the control of the discharging control subunit 1031.

[0124] In this embodiment, the first transmission assembly 41 includes: a first pulley 410, a second pulley 411, a transmission belt 412, a bearing housing 413, a transmission bearing 414, and a transmission shaft 415; the first pulley 410 is fixedly connected to the output shaft of the lifting motor 40; the second pulley 411 and the first pulley 410 are connected by the transmission belt 412; the bearing housing 413 is fixedly disposed between the two driving pulleys 42 and on the outside of the two driving pulleys 42, the transmission bearing 414 is fixedly disposed inside the bearing housing 413, the middle part and both ends of the transmission shaft 415 are fixedly connected to the transmission bearing 414, and the middle part of the transmission shaft 415 is fixedly connected to the second pulley 411, and the two ends are respectively fixedly connected to the two driving pulleys 42.

[0125] In this embodiment, the lifting mechanism 4 further includes: a drag chain frame 49 and a drag chain 490; the front end of the drag chain frame 49 is fixedly connected to the connecting plate 48, and the rear end is suspended on one side of the three-dimensional buffer frame 51; the bottom end of the drag chain 490 is fixedly connected to the drag chain frame 49, and the top end is fixedly connected to the upper side of the three-dimensional buffer frame 51; the cable required for the lifting mechanism 4 is installed inside the drag chain 490, and it moves up and down with the lifting mechanism 4 during the lifting movement, making the operation of the device safer.

[0126] Further, please see Figure 11 , 12 As shown in 15 and 16, in order to better transport cylindrical ingots, the front-end feeding mechanism 2 includes: a front-end main support 20 and a front-end roller line assembly 21 disposed on the front-end main support 20;

[0127] The front-end roller assembly 21 includes: a front-end roller bracket 210, a front-end roller group 211, and a front-end roller driver 212; the front-end roller bracket 210 is fixedly mounted on both sides of the top of the front-end main bracket 20; the front-end roller group 211 is mounted on the front-end roller bracket 210; the front-end roller driver 212 is drivenly connected to the front-end roller group 211 and is used to drive the front-end roller group 211 to rotate; the front-end roller driver 212 is communicatively connected to the feeding control subunit 1030 and the discharging control subunit 1031 respectively, and is used to perform actions according to the feeding action sequence under the control of the feeding control subunit 1030, and to perform actions according to the discharging action sequence under the control of the discharging control subunit 1031.

[0128] The rear discharge mechanism 6 includes a rear main support 60 and a rear roller line assembly mounted thereon;

[0129] The rear roller assembly includes: a rear roller support 61, a rear roller group 62, and a rear roller driver; the rear roller support 61 is fixedly mounted on both sides of the top of the rear main support 60; the rear roller group 62 is mounted on the rear roller support 61; the rear roller driver is drivenly connected to the rear roller group 62 and is used to drive the rear roller group 62 to rotate; the rear roller driver is communicatively connected to the feeding control subunit 1030 and the discharging control subunit 1031 respectively, and is used to perform actions according to the feeding action sequence under the control of the feeding control subunit 1030, and to perform actions according to the discharging action sequence under the control of the discharging control subunit 1031.

[0130] The three-dimensional caching mechanism 5 also includes cache library components 53 disposed in each cache library location 50;

[0131] The buffer assembly 53 includes: a buffer roller support 530, a buffer roller assembly 531, and a buffer roller driver; the buffer roller support 530 is fixedly mounted on the three-dimensional buffer frame 51, the buffer roller assembly 531 is mounted on the buffer roller support 530, and the buffer roller driver is drivenly connected to the buffer roller assembly 531 to drive the buffer roller assembly 531 to rotate; the buffer roller driver is communicatively connected to the feeding control subunit 1030 and the discharging control subunit 1031 respectively, and is used to perform actions according to the feeding action sequence under the control of the feeding control subunit 1030, and to perform actions according to the discharging action sequence under the control of the discharging control subunit 1031.

[0132] In this embodiment, the front roller assembly 211 consists of a front powered roller 2110 and multiple front unpowered rollers 2111 that are parallel to each other, as well as a front transmission chain 2112. The front roller driver 212 is driven to connect with the front powered roller 2110 to drive the front powered roller 2110 to rotate. The front powered roller 2110 and the adjacent front unpowered rollers 2111, as well as each adjacent front unpowered roller 2111, are sequentially connected by the front transmission chain 2112, thereby achieving synchronous rotation under the drive of the front roller driver 212.

[0133] In this embodiment, the rear roller assembly 62 consists of a parallel rear powered roller 620, multiple rear unpowered rollers 621, and a rear transmission chain 622. The rear roller driver and the rear powered roller 620 are driven together to drive the rear powered roller 620 to rotate. The rear powered roller 620 and the adjacent rear unpowered rollers 621, as well as each adjacent rear unpowered roller 621, are sequentially connected by the rear transmission chain 622, thereby achieving synchronous rotation under the drive of the rear roller driver.

[0134] In this embodiment, the buffer roller assembly 531 consists of a parallel buffer powered roller 5310 and multiple buffer unpowered rollers 5311, as well as a buffer drive chain. The buffer roller driver and the buffer powered roller 5310 are driven to rotate the buffer powered roller 5310. The buffer powered roller 5310 and the adjacent buffer unpowered rollers 5311, as well as each adjacent buffer unpowered roller 5311, are sequentially connected by the buffer drive chain, thereby achieving synchronous rotation under the drive of the buffer roller driver.

[0135] The working principle and process of this invention are as follows:

[0136] First, the inbound / outbound queue control unit 100 forms a task queue from the incoming or outbound requests received from the production line master controller 7, and generates a first incoming signal or a first outbound signal.

[0137] Next, when the material feeding location allocation subunit 1010 receives the first material feeding signal, it allocates a target buffer location 50 for the current material feeding ingot according to the principle of prioritizing the allocation of the vacant location closest to the ground, and generates a first update signal.

[0138] Alternatively, when the discharge storage location allocation subunit 1011 receives the first discharge signal, it queries the status information of each cache storage location 50 in the storage location information storage unit 112 and selects the storage location of the crystal ingot with the required length and the earliest storage time as the discharge storage location.

[0139] Then, the feeding timing setting subunit 1020 sets the feeding action timing of the front roller driver 212 in the front feeding mechanism 2, the translation electric cylinder 35, the rotary motor 31, and the transfer roller driver in the transfer mechanism 3, the lifting motor 40 in the lifting mechanism 4, and the buffer roller driver in the three-dimensional buffer mechanism 5 according to the received target buffer location 50, sends it to the feeding timing storage unit 110 for storage, and generates a second feeding signal;

[0140] Alternatively, the discharge timing setting subunit 1021 sets the discharge action timing of the lifting motor 40 in the lifting mechanism 4, the rotary motor 31, the translation electric cylinder 35, the transfer roller driver in the transfer mechanism 3, the buffer roller driver in the three-dimensional buffer mechanism 5, and the rear roller driver in the rear discharge mechanism 6 according to the received discharge location, sends it to the discharge timing storage unit 111 for storage, and generates a second discharge signal;

[0141] Finally, after receiving the second feeding signal, the feeding control subunit 1030 queries the feeding timing storage unit 110 and controls the front roller driver 212 in the front feeding mechanism 2, the translation electric cylinder 35, the rotary motor 31, and the transfer roller driver in the transfer mechanism 3, the lifting motor 40 in the lifting mechanism 4, and the buffer roller driver in the three-dimensional buffer mechanism 5 to operate in sequence, transporting the feeding ingot to the target buffer location 50 and returning the tray to the AGV along the original path. After completion, a third feeding signal is generated. Alternatively, after receiving the second discharging signal, the discharging control subunit 1031 queries the discharging timing storage unit 111 and controls the lifting motor 40 in the lifting mechanism 4, the rotary motor 31, the translation electric cylinder 35, and the transfer roller driver in the transfer mechanism 3, the buffer roller driver in the three-dimensional buffer mechanism 5, and the rear roller driver in the rear discharging mechanism 6 to operate in sequence, transporting the discharging ingot to the next process. After completion, a third discharging signal is generated.

[0142] After receiving the third feed signal or the third discharge signal, the storage location information update unit 104 updates the occupancy status of each buffer storage location 50 in real time and writes the updated status information into the storage location information storage unit 112.

[0143] The aforementioned ingot buffer device, by setting up a front-end feeding mechanism 2 to connect with the AGV, a rear-end discharging mechanism 6 to connect with the next process, and a transfer mechanism 3 connected to the three-dimensional buffer mechanism 5 via a lifting mechanism 4, is rotatable and can flexibly connect with the front-end feeding mechanism 2, the rear-end discharging mechanism 6, and the transfer mechanism 3. The control mechanism 1 controls the front-end feeding mechanism 2, the transfer mechanism 3, the lifting mechanism 4, and the rear-end discharging mechanism 6 to cooperate in conveying and buffering cylindrical ingots to be inspected. Compared with existing technologies, this device allows the AGV to complete only a short "incoming-return" action when there is a high volume of incoming materials during the cutting and grinding processes, eliminating the need for long queues at the final inspection entrance. This effectively breaks the bottleneck of AGVs being forced to stop due to long final inspection times, freeing up AGV transport capacity and enabling them to return quickly. The production line proceeds to the next cycle, significantly improving the turnover and utilization rate of the workshop's shared AGVs. On the other hand, by setting up a three-dimensional buffer mechanism 5, the ground space occupied by buffered materials is greatly reduced. This not only solves the space waste problem caused by AGV congestion at the entrance of the final inspection process, but also provides a structural foundation for the production line to be transformed towards a more compact and efficient direction. Furthermore, the aforementioned front-end feeding mechanism 2, transfer mechanism 3, and rear-end discharging mechanism 6, in cooperation with the control mechanism 1, enable the present invention to control the front-end feeding mechanism 2, transfer mechanism 3, lifting mechanism 4, and rear-end discharging mechanism 6 to work together according to the request of the production line's main controller 7, so as to store or retrieve crystal ingots into or out of the buffer storage location 50. This ensures orderly buffering during peak material arrival periods and smooth supply during peak material discharge periods, achieving high efficiency in crystal ingot circulation and intensive space utilization.

[0144] The above-disclosed embodiments are merely preferred embodiments of the present invention and should not be construed as limiting the scope of the invention. Those skilled in the art will understand that implementing all or part of the above-described embodiments and making equivalent changes in accordance with the claims of the present invention are still within the scope of the invention.

Claims

1. A crystal ingot buffer device, characterized in that, include: The system includes a control mechanism, and a front-end feeding mechanism, a transfer mechanism, a lifting mechanism, a three-dimensional buffer mechanism, and a rear-end discharging mechanism, all electrically connected to the control mechanism. One end of the transfer mechanism is connected to the outlet end of the front-end feeding mechanism, and the other end is connected to the inlet end of the rear-end discharging mechanism. The transfer mechanism is also connected to the three-dimensional buffer mechanism via the lifting mechanism. The transfer mechanism is rotatable and can flexibly dock with the front-end feeding mechanism, the three-dimensional buffer mechanism, and the rear-end discharging mechanism to transport cylindrical ingots. The three-dimensional cache mechanism includes a three-dimensional cache rack, several cache slots, and a barcode strip; the several cache slots are evenly distributed vertically within the three-dimensional cache rack; the barcode strip is fixedly installed on one side of the front end of the three-dimensional cache rack, and a corresponding cache slot barcode is provided on the barcode strip at a position corresponding to each cache slot; The control mechanism includes a controller and a memory; the controller is communicatively connected to the production line main controller and is used to receive material infeed requests or material discharge requests sent by the production line main controller; the controller is configured to control the front-end material infeed mechanism, the transfer mechanism, the lifting mechanism and the rear-end material discharge mechanism to coordinate their actions according to the received material infeed requests or material discharge requests, so as to store or retrieve the crystal ingots into or out of the buffer storage location; the memory is communicatively connected to the controller and is used to store the status information of each of the buffer storage locations.

2. The ingot buffer device as described in claim 1, characterized in that: The controller includes: an inbound / outbound queue control unit, a storage location allocation unit, a timing setting unit, and an inbound / outbound material control unit; The inbound / outbound queue control unit is used to communicate with the production line master controller and receive the inbound and outbound requests sent by the production line master controller, arrange them into a task queue according to the order of the time the requests are generated, and generate the first inbound signal and the first outbound signal. The storage location allocation unit is used to allocate a target cache storage location for the currently fed ingot when the first feeding signal is received; and to query the storage unit to determine the discharge storage location when the first discharge signal is received. The timing setting unit is used to set the feeding action timing of the front-end feeding mechanism, the transfer mechanism and the lifting mechanism and generate a second feeding signal after receiving the target cache location sent by the storage location allocation unit; and is used to set the discharging action timing of the lifting mechanism, the transfer mechanism and the rear-end discharging mechanism and generate a second discharging signal after receiving the discharging location sent by the storage location allocation unit. The infeed / outfeed control unit is used to, upon receiving a second infeed signal, control the front-end infeed mechanism, the transfer mechanism, and the lifting mechanism to operate sequentially according to the infeed action sequence, so as to transport the infeed ingot to the target buffer storage location and return the pallet to the AGV along the original route; and is also used to, upon receiving a second outfeed signal, control the transfer mechanism, the lifting mechanism, and the rear-end outfeed mechanism to operate sequentially according to the outfeed action sequence, so as to transport the outfeed ingot to the next process. The memory is communicatively connected to the controller and is used to store the feeding timing action, the discharging timing action, and the status information of each of the buffer locations.

3. The ingot buffer device as described in claim 2, characterized in that: The storage location allocation unit includes: an infeed storage location allocation subunit and an outfeed storage location allocation subunit; The feeding storage location allocation subunit is used to allocate a target cache storage location for the current feeding ingot according to a preset feeding storage location allocation strategy when the first feeding signal is received, and send it to the timing setting unit after the allocation is completed, and generate a first update signal; the feeding storage location allocation strategy is: to give priority to allocating the vacant storage location closest to the ground; The discharge storage location allocation subunit is used to, upon receiving the first discharge signal, query the status information of each cache storage location in the storage unit according to the preset discharge storage location allocation strategy, determine the discharge storage location, and send it to the timing setting unit after allocation is completed; the discharge storage location allocation strategy is: among all ingots with the required length, the ingot that was stored earliest is selected first. The timing setting unit includes: a feeding timing setting subunit and a discharging timing setting subunit; The feeding timing setting subunit is used to set the feeding action timing of the front-end feeding mechanism, the transfer mechanism and the lifting mechanism after receiving the target buffer location sent by the feeding location allocation subunit, and to generate a second feeding signal. The discharge timing setting subunit is used to set the discharge action timing of the lifting mechanism, the transfer mechanism and the rear discharge mechanism after receiving the discharge location sent by the discharge location allocation subunit, and to generate a second discharge signal. The infeed and discharge control unit includes: an infeed control subunit and an discharge control subunit; The feeding control subunit is used to control the front-end feeding mechanism, the transfer mechanism and the lifting mechanism to operate in sequence according to the feeding action timing after receiving the second feeding signal, to transport the feeding ingot to the target buffer storage location, and to return the tray to the AGV along the original route, and generate the third feeding signal after completion. The discharge control subunit is used to control the transfer mechanism, the lifting mechanism and the rear discharge mechanism to operate in sequence according to the discharge action timing after receiving the second discharge signal, so as to transport the discharged ingot to the next process and generate the third discharge signal after completion. The control unit further includes: a storage location information update unit, which is used to update the occupancy status of each cache storage location in real time after receiving the first update signal or the third feeding signal, or after receiving the third discharging signal, and write the updated status information into the memory; The memory includes: a material feeding timing storage unit, a material discharging timing storage unit, and a storage location information storage unit; The feeding timing storage unit is used to store the feeding action timing set by the feeding timing setting subunit. The feeding action timing includes the timing of the actions of the front feeding mechanism, the transfer mechanism, and the lifting mechanism. The discharge timing storage unit is used to store the discharge action timing set by the discharge timing setting subunit. The discharge action timing includes the timing of the actions of the lifting mechanism, the transfer mechanism and the rear discharge mechanism. The storage unit is communicatively connected to the storage barcode on the barcode strip and is used to store the status information of each cache storage location. It also receives and stores the updated status information sent by the storage location information update unit in real time. The status information includes whether the storage location is vacant, occupied, or locked, as well as the theoretical length value, storage time, and storage duration of the ingot in the storage location.

4. The ingot buffer device as described in claim 3, characterized in that: The control mechanism also includes a detector; The detector includes: a crystal ingot scanning component and a cache location reader; The ingot scanning component is fixedly installed on the front-end feeding mechanism and is used to scan the QR code on the side of the ingot to obtain the theoretical length value of the ingot, which is then written into the storage unit through the storage location information update unit. The cache location barcode reader is fixedly installed on the lifting mechanism at a position opposite to the barcode strip, and is used to scan the location barcode on the barcode strip to obtain the location information.

5. The ingot buffer device as described in claim 3, characterized in that: The transfer mechanism includes a transfer base, a rotary motor, a rotary transmission assembly, a rotary base plate, and a transfer roller assembly; The rotary motor is located in one corner of the transfer base; the rotary transmission assembly is located on the top of the transfer base, with its input end connected to the output end of the rotary motor; the rotating base plate is horizontally positioned above the rotary transmission assembly, with its bottom fixedly connected to the output end of the rotary transmission assembly; the transfer roller assembly is located on the top of the rotating base plate; the rotary motor drives the rotary transmission assembly, thereby causing the rotating base plate and the transfer roller assembly on it to rotate in a horizontal plane, so that the transfer roller assembly can rotate to different directions as needed and dock with the front-end feeding mechanism, the rear-end discharging mechanism, or the three-dimensional buffer mechanism; the rotary motor and the transfer roller assembly are respectively communicatively connected to the feeding control subunit, and are used to perform actions according to the feeding action sequence under the control of the feeding control subunit; the rotary motor and the transfer roller assembly are respectively communicatively connected to the discharging control subunit, and are used to perform actions according to the discharging action sequence under the control of the discharging control subunit.

6. The ingot buffer device as described in claim 5, characterized in that: The transfer mechanism further includes a translation electric cylinder and a translation assembly; both the translation electric cylinder and the translation assembly are disposed on the top of the rotating base plate; the translation electric cylinder is connected to the input end of the translation assembly; the transfer roller assembly is disposed on the top of the translation assembly; The translation electric cylinder drives the translation component, thereby causing the intermediate roller conveyor assembly to translate on the rotating base plate. This allows the intermediate roller conveyor assembly to move closer to the front-end feeding mechanism, the rear-end discharging mechanism, and the three-dimensional buffer mechanism when docking and conveying ingots, thus shortening the space reserved for the rotation of the rotating base plate. The translation motor is communicatively connected to the feeding control subunit and is used to operate according to the feeding action sequence under the control of the feeding control subunit. The translation motor is also communicatively connected to the discharging control subunit and is used to operate according to the discharging action sequence under the control of the discharging control subunit.

7. The ingot buffer device as described in claim 5, characterized in that: The transfer roller assembly includes: a transfer roller bracket, a transfer roller group, and a transfer roller driver; the transfer roller bracket is fixedly mounted on the top of the translation assembly; the transfer roller group is mounted on the transfer roller bracket; the transfer roller driver is drivenly connected to the transfer roller group and is used to drive the transfer roller group to rotate; the transfer roller driver is communicatively connected to the feeding control subunit and the discharging control subunit, respectively, and is used to perform actions according to the feeding action sequence under the control of the feeding control subunit, and to perform actions according to the discharging action sequence under the control of the discharging control subunit. The rotary transmission assembly includes a rotary reducer, a small rotary gear, a large rotary gear, a rotary support plate, a rotary connecting shaft, and a connecting bearing. The input end of the rotary reducer is fixedly connected to the output end of the rotary motor, and its output end is fixedly connected to the rotary pinion; the rotary support pad is fixedly disposed at the center of the top of the transfer base; the rotary large gear is disposed on the top of the rotary support pad and meshes with the rotary pinion; the connecting bearing is fixedly disposed at the axial center of the rotary support pad, the lower part of the rotary connecting shaft is fixedly connected to the connecting bearing, the middle part is fixedly connected to the rotary large gear, and the upper part is fixedly connected to the axial axis of the rotary base plate.

8. The ingot buffer device as described in claim 7, characterized in that: The bottom of the rotating base plate is provided with a rotating groove that surrounds the outer periphery of the rotating large gear; The transfer mechanism also includes a rotating support assembly; the rotating support assembly corresponds to the position of the rotating groove and is used to provide auxiliary support for the rotating base plate during rotation; The rotating support assembly includes: four bullseye support bases, four bullseye support shafts, and four bullseye bearings; The four bullseye support bases are fixedly installed at the four corners of the top of the transfer base; the four bullseye support shafts are respectively fixedly installed on the four bullseye support bases; the four bullseye bearings are respectively fixedly installed on the four bullseye support shafts; the tops of the four bullseye bearings match the rotating grooves; The translation component includes a translation adapter block, two translation guide rails, two sets of translation sliders, and four translation limit blocks; The two translation guide rails are arranged parallel to each other on both sides of the top of the rotating base plate; the two sets of translation sliders are slidably arranged on the two translation guide rails respectively, and the top of each translation slider is fixedly connected to the corresponding transfer roller bracket; one end of the translation adapter block is fixedly connected to one set of translation sliders, and the other end is fixedly connected to the push head mounting plate of the translation electric cylinder; under the drive of the translation electric cylinder, the translation adapter block drives the translation slider and the transfer roller bracket on it to slide along the translation guide rails; the four translation limit blocks are fixedly arranged at the front and rear ends of the two translation guide rails respectively to limit the sliding stroke of the translation slider.

9. The ingot buffer device as described in claim 7, characterized in that: The lifting mechanism includes a lifting motor, a first transmission assembly, two driving pulleys, two synchronous belts, two driven pulleys, two lifting guide rails, two sets of lifting sliders, two pressure blocks, and a connecting plate. The lifting motor is fixedly mounted on the top of the three-dimensional buffer rack; the two drive pulleys are fixedly mounted on both ends of the top of the three-dimensional buffer rack; the input end of the first transmission component is connected to the output end of the lifting motor, and its output end is connected to the two drive pulleys respectively, for driving the two drive pulleys to rotate synchronously under the drive of the lifting motor; the two driven pulleys are fixedly mounted on both sides of the bottom front end of the three-dimensional buffer rack respectively, and are respectively connected to the two drive pulleys through the corresponding synchronous belts; The two lifting guide rails are respectively disposed at the front end of the three-dimensional buffer rack and are respectively located beside the two synchronous belts; the two pressure blocks are respectively fixed on the corresponding synchronous belts; the two sets of lifting sliders are respectively slidably disposed on the corresponding lifting guide rails and are located beside the corresponding pressure blocks; The connecting plate is fixedly connected to the transfer base at the center of one side facing the transfer mechanism, and fixedly connected to the corresponding lifting slider and the pressure block on both sides of the other side facing the three-dimensional buffer mechanism, respectively. The lifting motor drives the two active pulleys and the two driven pulleys to rotate, thereby driving the two synchronous belts to move up and down along the three-dimensional buffer frame, and driving the transfer mechanism to move up and down along the lifting guide rail through the pressure block and the lifting slider. The lifting motor is communicatively connected to the feeding control subunit and the discharging control subunit, respectively, and is used to operate according to the feeding action sequence under the control of the feeding control subunit; and to operate according to the discharging action sequence under the control of the discharging control subunit.

10. The ingot buffer device as described in claim 1, characterized in that: The front-end feeding mechanism includes: a front-end main support and a front-end roller line assembly disposed on the front-end main support; The front-end roller assembly includes: a front-end roller bracket, a front-end roller group, and a front-end roller driver; the front-end roller bracket is fixedly mounted on both sides of the top of the front-end main bracket; the front-end roller group is mounted on the front-end roller bracket; the front-end roller driver is drivenly connected to the front-end roller group and is used to drive the front-end roller group to rotate; the front-end roller driver is communicatively connected to the feeding control subunit and the discharging control subunit, respectively, and is used to perform actions according to the feeding action sequence under the control of the feeding control subunit, and to perform actions according to the discharging action sequence under the control of the discharging control subunit. The rear discharge mechanism includes a rear main support and a rear roller line assembly mounted thereon; The rear roller assembly includes: a rear roller support, a rear roller group, and a rear roller driver; the rear roller support is fixedly mounted on both sides of the top of the rear main support; the rear roller group is mounted on the rear roller support; the rear roller driver is drivenly connected to the rear roller group and is used to drive the rear roller group to rotate; the rear roller driver is communicatively connected to the feeding control subunit and the discharging control subunit, respectively, and is used to perform actions according to the feeding action sequence under the control of the feeding control subunit, and to perform actions according to the discharging action sequence under the control of the discharging control subunit. The three-dimensional caching mechanism also includes a cache library component disposed in each of the cache library locations; The buffer assembly includes: a buffer roller support, a buffer roller assembly, and a buffer roller driver; the buffer roller support is fixedly mounted on the three-dimensional buffer frame, the buffer roller assembly is mounted on the buffer roller support, and the buffer roller driver is drivenly connected to the buffer roller assembly to drive the buffer roller assembly to rotate; the buffer roller driver is communicatively connected to both the feeding control subunit and the discharging control subunit, and is used to perform actions according to the feeding action sequence under the control of the feeding control subunit, and to perform actions according to the discharging action sequence under the control of the discharging control subunit.

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