A tray feeding and discharging device

Abstract

The utility model discloses a material disc feeding and discharging device, it includes a pair of material frame that parallelly arranged, first material discharge station, push station and second material discharge station are sequentially arranged along the material frame length direction, the inside of material frame is provided with first conveying line of being located in the upper layer and second conveying line of being located in the lower layer, first conveying line from first material discharge station extends to push station, second conveying line from push station extends to second material discharge station, be provided with the material bin of placing material disc on the material frame at first material discharge station, be provided with lifting transfer module in the inside of material frame at second material discharge station, be provided with lifting receiving module below the material bin, the utility model discloses compact structure design, the space that occupies is small, automation, intelligent level is high, stable and reliable operation, positioning is accurate, has greatly promoted the efficiency of material handling and the overall performance of automatic production line.

Description

Technical Field

[0001] This utility model belongs to the field of material tray conveying technology, and in particular relates to a material tray loading and unloading device. Background Technology

[0002] A material tray, also known as a material tray, has multiple material slots, allowing multiple products to be placed on a single tray. Multiple trays stacked together can store a large number of products. In the 3C product manufacturing industry, material trays are commonly used as a storage method between two production processes in the intermediate processing of electronic products such as FPCs, silicon microphones, power supplies, and battery cells. The process of storing and loading / unloading material involves the transfer of the material tray. Existing technologies have designed various material tray transfer mechanisms, for example, as described in Chinese Utility Model Patent Publication No. CN217024341. A tray loading and unloading mechanism disclosed in the U.S. includes a loading component, a lifting component, and a unloading component along the conveyor belt flow direction. The loading component places a tray filled with products for loading, the tray is transferred to a raw material component in the middle, where a suction mechanism retrieves the material. After retrieval, the empty tray is transferred to the unloading component for collection. This is a common method in existing technology, where one end places a tray filled with products and the other end collects empty trays for loading, or vice versa. However, in this scheme, the loading and unloading are located at opposite ends of the mechanism, requiring workers to move back and forth between the two ends to perform the loading and unloading operations, which is inconvenient.

[0003] In the prior art, Chinese invention patent application publication number CN109178948A discloses an automated tray transfer and loading device and its transfer and loading process, including an upper platform, a lower platform, a pusher tray assembly, a distributor tray assembly, a receiving tray assembly, a tray transfer assembly, and a discharge tray assembly. The upper platform has a tray feeding station, a distributor tray station, and a loading station arranged sequentially along a straight line, while the lower platform has a discharge tray station. Multiple trays at the tray feeding station are pushed to the distributor tray station by the pusher tray assembly. The distributor tray assembly pushes the bottommost tray to the loading station. The receiving tray assembly at the loading station supports the trays. The tray transfer assembly is located below the loading station, and the trays are moved downwards sequentially to the lower platform via the tray transfer assembly and then transferred to the discharge tray station. The solution can realize the transportation of empty and full material trays stacked on top of each other, but the solution has the following problems: (1) It is set up with an upper platform and a lower platform. The feeding-related structure is set on the upper platform and the discharging-related structure is set on the lower platform. The upper and lower platforms are set up separately, which occupies a large space; (2) Moreover, the material trays at the discharging tray station are stacked upwards. In order to stack more material trays, the height between the upper platform and the lower platform must be as high as possible, which makes the height of the whole device very high. In addition, the material tray transfer component is set below the loading station. It is to move the material trays loaded at the station to the discharging tray station. The height between the upper platform and the lower platform is relatively high, which will cause the material tray transfer component to move a long distance up and down and move slowly, which will reduce the overall conveying efficiency.

[0004] Therefore, it is necessary to provide a material tray loading and unloading device to solve the above-mentioned technical problems. Utility Model Content

[0005] The main purpose of this utility model is to provide a material tray loading and unloading device with a compact structure, small space occupation, high level of automation and intelligence, stable and reliable operation, and accurate positioning, which greatly improves the efficiency of material handling and the overall efficiency of automated production lines.

[0006] This utility model achieves the above-mentioned objective through the following technical solution: a material tray loading and unloading device, comprising a pair of parallel material racks, with a first unloading station, a pushing station, and a second unloading station arranged sequentially along the length of the material racks; a first conveyor line located on the upper layer and a second conveyor line located on the lower layer are arranged on the inner side of the material racks; the first conveyor line extends from the first unloading station to the pushing station, and the second conveyor line extends from the pushing station to the second unloading station; a material bin for placing material trays is arranged on the material rack at the first unloading station; the material trays in the material bins are conveyed to the second unloading station via the first conveyor line; a lifting and transferring module for transferring material trays to the second conveyor line is arranged on the inner side of the material rack at the second unloading station; and a lifting and receiving module for receiving material trays on the second conveyor line is arranged below the material bin.

[0007] Furthermore, the material rack is provided in sequence below the material bin with a first support component for supporting the material tray, a material tray separation component for separating the bottommost material tray and transferring it to the first conveyor line, and a second support component for supporting the material tray. The first support component and the material tray separation component are located above the first conveyor line, the second support component is located below the first conveyor line and is connected to the second conveyor line, and the lifting receiving module is located directly below the second support component.

[0008] Furthermore, the first support assembly includes a first support plate supporting the material tray and a first cylinder driving the first support plate to extend or retract horizontally.

[0009] The tray separation assembly includes a second cylinder, a first support plate driven by the second cylinder to move up and down, a third cylinder disposed on the first support plate, and a second bearing plate driven by the third cylinder to extend or retract horizontally.

[0010] The second support assembly includes a third bearing plate that supports the material tray and a fourth cylinder that drives the third bearing plate to extend or retract horizontally. The support end of the third bearing plate is provided with a first step groove.

[0011] Furthermore, the lifting receiving module includes a receiving plate for receiving the material tray and a lifting assembly for driving the receiving plate to move up and down.

[0012] Furthermore, the pushing station is provided with a first pushing module located on the upper layer and a second pushing module located on the lower layer. The first pushing module and the second pushing module are symmetrically arranged and have opposite pushing directions. The first pushing module pushes the material tray on the first conveyor line into the second unloading station, and the second pushing module is used to push the material tray on the second conveyor line into the first unloading station.

[0013] Furthermore, both the first push module and the second push module include a second mounting frame, a first driving member disposed on the second mounting frame, a movable frame that moves along the length direction of the material rack driven by the first driving member, a push block rotatably disposed on the movable frame, and a driving rod disposed at one end of the second mounting frame that drives the push block to rotate. A clearance gap is provided between the bottom of the push block and the movable frame to allow the push block to rotate, and a spring is provided at the clearance gap.

[0014] Furthermore, the material rack at the second feeding station is equipped with a support and positioning module for supporting the material tray, a limiting plate for limiting the front end of the material tray, and a positioning component for positioning the material tray. The lifting and transfer module is located directly below the support and positioning module.

[0015] Furthermore, the support positioning module includes a fourth bearing plate supported on the bottom of the tray and a sixth cylinder that drives the fourth bearing plate to extend or retract horizontally. The support end of the fourth bearing plate is provided with a second step groove.

[0016] The positioning component includes several pressing plates pressed against the upper surface of the material tray, and some of the pressing plates are driven by the seventh cylinder to move horizontally or vertically.

[0017] Furthermore, the lifting and transfer module includes a lifting plate for receiving and transferring the material tray, and a lifting drive component for driving the lifting plate to perform lifting and lowering actions.

[0018] Furthermore, the material rack is equipped with several sensors for detecting the material tray at the first feeding station, the pushing station, and the second feeding station.

[0019] Compared with the prior art, the advantages of the material tray loading and unloading device of this utility model are as follows:

[0020] (1) Optimized spatial layout and high integration: The parallel double rack design is adopted, and two layers of conveyor lines (the first conveyor line and the second conveyor line) are arranged in a staggered manner on the inner side. This realizes the three-dimensional separation and integration of the material tray supply and recycling path in the same device. This not only greatly saves the floor area of ​​the equipment, but also makes the material tray input and retrieval concentrated on the first material feeding station, which is convenient to operate and has a reasonable layout.

[0021] (2) High degree of automation and smooth and efficient operation: The device integrates a full set of functional modules such as silo storage, automatic separation, dual-line conveying, bidirectional pushing, precise positioning and automatic recycling, realizing full-process automation of material tray loading, conveying, positioning, operation and recycling. Each module is controlled by sensors and seamlessly connected, which significantly reduces manual intervention and improves overall production efficiency.

[0022] (3) High positioning accuracy ensures the quality of loading and unloading: At the second unloading station, the support positioning module (fourth bearing plate with second step groove), the limiting plate (length direction limiting) and the positioning component (Z direction pressing) work together to achieve precise constraint and positioning of the material tray in the X, Y and Z directions, providing an extremely stable and accurate working foundation for the handling mechanism. It is especially suitable for loading and unloading of precision components with high positioning requirements, effectively ensuring the quality of operation.

[0023] (4) Two-way pushing mechanism, smooth and efficient process: The innovative upper and lower two-layer pushing module (first pushing module and second pushing module) design of the pushing station has the same structure and symmetrical arrangement. The ingenious action achieves automatic avoidance and pushing through the cooperation of the drive rod, spring and pushing block, realizing the automatic and two-way transfer of the material tray between the upper and lower conveyor lines. This makes the flow direction of empty tray and the flow direction of full tray recycling clear and do not interfere with each other, optimizes the material flow and improves the cycle time;

[0024] (5) The recycling system is intelligent and flexible: The lifting receiving module adopts the method of motor (first motor) driving transmission belt (first transmission belt) to drive the receiving plate to lift. This can not only receive the recycled material trays, but also automatically adjust the stacking height to adapt to the recycling and storage needs of different numbers of material trays, realizing automatic adjustment of recycling capacity and high level of intelligence.

[0025] (6) Independent lifting and improving efficiency: The lifting and transfer module is specifically responsible for transferring the completed material trays from the support and positioning module to the second conveyor line at the second unloading station. It only transfers between the heights of the two conveyor lines. Its travel distance is short, and it works independently from the lifting and receiving module responsible for recycling and stacking, without waiting for each other, thereby improving the efficiency of material tray transfer and the operating rhythm of the entire system.

[0026] Therefore, the material tray loading and unloading device has a compact structure, occupies little space, has a high level of automation and intelligence, operates stably and reliably, and has precise positioning, which greatly improves the efficiency of material handling and the overall efficiency of automated production lines. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the material tray loading and unloading device according to an embodiment of the present invention;

[0028] Figure 2 This is a schematic diagram of the material tray loading and unloading device according to an embodiment of the present utility model, after removing the lifting receiving module, the lifting transfer module, the first pushing module, and the second pushing module;

[0029] Figure 3 This is an embodiment of the present utility model. Figure 2 A schematic diagram of the structure after removing the material rack;

[0030] Figure 4 This is a schematic diagram of the lifting and receiving module according to an embodiment of the present invention;

[0031] Figure 5 This is a schematic diagram of the structure of the first push module or the second push module according to an embodiment of the present utility model;

[0032] Figure 6 This is a schematic diagram of the structure of the first or second push module of this utility model after removing the second mounting bracket and the first driving component;

[0033] Figure 7 This is a schematic diagram of the lifting and receiving module according to an embodiment of the present invention;

[0034] The numbers in the image represent:

[0035] 100 - Material tray loading and unloading device;

[0036] 1-Material rack, 1a-First material unloading station, 1b-Pushing station, 1c-Second material unloading station;

[0037] 2-First conveyor line; 3-Second conveyor line; 4-Hopper;

[0038] 5-First support assembly, 51-First bearing plate, 52-First cylinder;

[0039] 6-Pan separation assembly, 61-Second cylinder, 62-First support plate, 63-Third cylinder, 64-Second bearing plate;

[0040] 7-Second support assembly, 71-Third bearing plate, 72-Fourth cylinder, 73-First step groove;

[0041] 8-Lifting receiving module, 81-Receiving plate, 82-Lifting assembly, 821-First motor, 822-First transmission belt, 823-First mounting bracket;

[0042] 9-First pushing module, 91-Second mounting bracket, 92-First driving component, 93-Moving frame, 94-Pushing block, 95-Drive rod, 96-Clearing clearance, 97-Roller, 98-Support shaft;

[0043] 10 - Second push module;

[0044] 20-Support positioning module, 201-Fourth bearing plate, 202-Sixth cylinder, 203-Second step groove;

[0045] 30-Lifting and transfer module, 301-Lifting plate, 302-Lifting drive component;

[0046] 40-Limit plate; 50-Positioning component; 501-Pressure plate; 502-Seventh cylinder; 60-Sensor. Detailed Implementation

[0047] Please refer to Figures 1-7 This embodiment is a material tray loading and unloading device 100, which includes a pair of parallel material racks 1. A first material feeding station 1a, a pushing station 1b, and a second material feeding station 1c are arranged sequentially along the length of the material racks 1. Two layers of conveyor lines for conveying material trays are arranged vertically on the inner side of the material racks 1, namely a first conveyor line 2 on the upper layer and a second conveyor line 3 on the lower layer. The first conveyor line 2 and the second conveyor line 3 are staggered. The first conveyor line 2 extends from the first material feeding station 1a to the pushing station 1b, and the second conveyor line 3 extends from the pushing station 1b to the second material feeding station 1c. A material bin 4 for placing material trays is arranged on the material rack 1 at the first material feeding station 1a. The material trays in the material bin 4 are conveyed to the second material feeding station 1c via the first conveyor line 2. A lifting and transferring module 30 for transferring material trays to the second conveyor line 3 is arranged on the inner side of the material rack 1 at the second material feeding station 1c. A lifting and receiving module 8 for receiving material trays on the second conveyor line 3 is arranged below the material bin 4. In this embodiment, both the first conveyor line 2 and the second conveyor line 3 are belt conveyors. In other embodiments, the specific structures of the first conveyor line 2 and the second conveyor line 3 can be set according to actual conditions. By adopting a parallel arrangement of double material racks 1 and setting two layers of conveyor lines, namely the first conveyor line 2 and the second conveyor line 3, staggered vertically inside the material rack 1, the feeding and retrieval of material trays can be completed simultaneously in the same device, effectively utilizing vertical space, reducing the equipment footprint, and facilitating the feeding and retrieval of material trays at the first unloading station 1a.

[0048] Below the material hopper 4, the material rack 1 is sequentially equipped with a first support component 5 for supporting the material trays, a material tray separation component 6 for separating the bottommost material tray and transferring it to the first conveyor line 2, and a second support component 7 for supporting the material trays. The first support component 5 and the material tray separation component 6 are located above the first conveyor line 2, and the second support component 7 is located below the first conveyor line 2 and is connected to the second conveyor line 3. The lifting and receiving module 8 is located directly below the second support component 7. That is, the lifting and receiving module 8 receives the material trays on the second conveyor line 3 through the second support component 7. Specifically, after the second support component 7 receives the material trays recovered from the second conveyor line 3, the material trays on the second support component 7 fall directly onto the lifting and receiving module 8 to realize the recovery of the material trays.

[0049] The first support components 5 are arranged in groups on the left and right sides of the material rack 1, and multiple groups of first support components 5 arranged on the left and right sides jointly support the bottom of the material tray. The first support component 5 includes a first bearing plate 51 supporting the material tray and a first cylinder 52 driving the first bearing plate 51 to extend or retract horizontally. In this embodiment, the first support components 5 are provided with two groups supporting the bottom of the material tray, and two support positions are formed on each of the two opposite long sides of the material tray to ensure the stability of the support. In other embodiments, the number of first support components 5 can be set according to the actual situation, and the number of first support components 5 is not limited here.

[0050] The tray separation components 6 are arranged in groups on the tray rack 1, and at least one group of tray separation components 6 arranged on the left and right sides is supported by the bottom of the tray. The tray separation component 6 includes a second cylinder 61, a first support plate 62 driven by the second cylinder 61 to move up and down, a third cylinder 63 arranged on the first support plate 62, and a second bearing plate 64 driven by the third cylinder 63 to extend or retract horizontally. Each end of the first support plate 62 is provided with a third cylinder 63 and a second bearing plate 64. The second bearing plates 64 are arranged in groups on the left and right sides, that is, there are two groups of second bearing plates 64 arranged opposite each other on the left and right sides. There are two support positions on each of the two opposite long sides of the tray to ensure the stability of the support. In other embodiments, the number of second bearing plates 64 can be set according to the actual situation, and the number of second bearing plates 64 is not limited here.

[0051] The second support components 7 are arranged in groups on the material rack 1, and at least one group of the second support components 7 arranged on the left and right sides jointly supports the bottom of the material tray. The second support component 7 includes a third bearing plate 71 supporting the material tray and a fourth cylinder 72 for driving the third bearing plate 71 to extend or retract horizontally. The supporting end of the third bearing plate 71 is provided with a first stepped groove 73. The first stepped groove 73 can not only support the bottom of the material tray, but also, when the two third bearing plates 71 are supported on the bottom of the material tray, the two first stepped grooves 73 are locked on both sides of the bottom of the material tray, which can also realize the side limit of the material tray. In this embodiment, the third bearing plates 71 are arranged in groups on the left and right sides and jointly support the bottom of the material tray. In other embodiments, the number of third bearing plates 71 can be set according to the actual situation, and the number of third bearing plates 71 is not limited here.

[0052] The lifting and receiving module 8 includes a receiving plate 81 that receives the material tray from the second support component 7, and a lifting component 82 that drives the receiving plate 81 to move up and down. The lifting component 82 drives the receiving plate 81 to move up and down to realize the action of the receiving tray. Multiple layers of trays are stacked on the receiving plate 81. By driving the receiving plate 81 up and down through the lifting component 82, not only can the receiving action be realized, but the number of layers of receiving trays can also be automatically adjusted. If more trays need to be stacked, the lifting component 82 can drive the receiving plate 81 to move down. That is, the lifting and receiving module 8 can automatically adjust the storage height of the trays.

[0053] In this embodiment, the lifting assembly 82 includes a first motor 821, a first transmission belt 822 driven by the first motor 821 to perform lifting movements, and a first mounting bracket 823 fixed on the first transmission belt 822. The receiving plate 81 is fixed on the first mounting bracket 823. The first transmission belt 822 is a belt or a chain. In other embodiments, the lifting assembly 82 can be configured as other lifting drive structures, as long as it can drive the receiving plate 81 to perform lifting movements. Therefore, the specific structure of the lifting assembly 82 is not limited here.

[0054] The push station 1b is equipped with two layers of push modules, namely a first push module 9 on the upper layer and a second push module 10 on the lower layer. The push directions of the first push module 9 and the second push module 10 are opposite. The first push module 9 pushes the material tray on the first conveyor line 2 into the second unloading station 1c, and the second push module 10 is used to push the material tray on the second conveyor line 3 into the first unloading station 1a. The first push module 9 and the second push module 10 have the same structure and are symmetrically arranged. Both the first push module 9 and the second push module 10 include a second mounting frame 91, a first driving member 92 mounted on the second mounting frame 91, a movable frame 93 driven by the first driving member 92 to move along the length direction of the material rack 1, a push block 94 rotatably mounted on the movable frame 93, and a driving rod 95 mounted at one end of the second mounting frame 91 to drive the push block 94 to rotate and reduce its height. A clearance gap 96 is provided between the bottom of the push block 94 and the movable frame 93 to allow the push block 94 to rotate. A spring is provided at the clearance gap 96, with the upper end of the spring connected to the push block 94 and the lower end connected to the movable frame 93. The push block 94 is rotatably mounted on the movable frame 93 via a support shaft 98. The upper end of the push block 94 extends upwards out of the push tray, and the lower end is mounted on the movable frame 93. A clearance notch is provided on the lower end of the push block 94 for the push rod 95 to extend into. A roller 97 is rotatably provided at the drive end of the drive rod 95. The rotating roller 97 drives the push block 94 to rotate, which can avoid rigid drive and thus improve the service life of the push block 94.

[0055] The working principle of the first pushing module 9 is as follows: the drive rod 95 drives the pushing block 94 to rotate, the spring is compressed, and the pushing block 94 can lower its height so that the material tray enters the pushing station 1b from the first conveyor line 2. When the material tray is conveyed to the end of the first conveyor line 2, the first drive member 92 drives the moving frame 93 to move the pushing block 94 to the end of the first conveyor line 2. At this time, without the action of the drive rod 95, the spring stretches and causes the pushing block 94 to rotate in the opposite direction and rise, so that the pushing block 94 abuts against one end of the material tray. The first drive member 92 drives the moving frame 93 to move the pushing block 94 to continue moving, pushing the material tray on the first conveyor line 2 to the second unloading station 1c. The working principle of the second pushing module 10 is basically the same as the station principle of the first pushing module 9, and will not be described in detail here, except that the direction of action is reversed, pushing the material tray on the second conveyor line 3 to the second unloading station 1a.

[0056] The material rack 1 at the second feeding station 1c is equipped with a support positioning module 20 for supporting the material tray, a limiting plate 40 for limiting the front end of the material tray, and a positioning component 50 for positioning the material tray. The lifting and transfer module 30 is located directly below the support positioning module 20 so as to transfer the material tray on the support positioning module 20 to the second conveyor line 3.

[0057] The support positioning modules 20 are arranged in groups on the left and right sides of the material rack 1, and at least one group of support positioning modules 20 arranged on the left and right sides together supports the bottom of the material tray. The support positioning module 20 includes a fourth bearing plate 201 supported on the bottom of the material tray and a sixth cylinder 202 that drives the fourth bearing plate 201 to extend or retract horizontally. The support end of the fourth bearing plate 201 is provided with a second stepped groove 203. The second stepped groove 203 can not only support the bottom sides of the material tray, but also limit the movement of the sides of the material tray.

[0058] The first cylinder 52, the second cylinder 61, the fourth cylinder 72, and the sixth cylinder 202 are all fixed on the outside of the material rack 1. The horizontal movement direction of the first bearing plate 51, the second bearing plate 64, the third bearing plate 71, and the fourth bearing plate 201 is perpendicular to the conveying direction of the first conveyor line 2. The material rack 1 has several first openings at the first unloading station 1a. The several first openings allow the first bearing plate 51, the third bearing plate 71, and the fourth bearing plate 201 to move horizontally, and also allow the second bearing plate 64 to move horizontally and vertically.

[0059] After the tray is supported on the fourth bearing plate 201, the conveying mechanism picks up products from the tray to perform the loading action or places products on the tray to perform the unloading action. Some products are very small in size. In order to ensure the smooth loading and unloading, the stability of the tray positioning is required. The second step groove 203 of the two fourth bearing plates 201 can realize the limit in the width direction (Y direction) of the tray, and the limiting plate 40 can realize the limit in the length direction (X direction) of the tray. That is, the tray can be limited in the X and Y directions. In order to prevent the tray from moving in the Z direction, a positioning component 50 is provided. The positioning component 50 includes several pressing plates 501 pressed against the upper surface of the tray. Some of the pressing plates 501 are driven by the seventh cylinder 502 to move horizontally or vertically to press against the upper surface of the tray to achieve vertical positioning of the tray. Therefore, the support and positioning module 20 can not only support the tray, but also cooperate with the limit plate 40 and the positioning component 50 to position the tray and restrict its movement in the XYZ directions.

[0060] The lifting and transferring module 30 includes a lifting plate 301 that receives and transfers the material tray, and a lifting drive 302 that drives the lifting plate 301 to perform lifting and lowering actions. Since the lifting drive 302 drives the lifting plate 301 to transfer the material tray between the support and positioning module 20 and the second conveyor line 3, the stroke is simple, moving between the height of the first conveyor 2 and the height of the second conveyor line 3. Both the first conveyor 2 and the second conveyor line 3 are located inside the material rack 1, resulting in a small moving height and improving the moving efficiency of the lifting and transferring module 30. Furthermore, compared to existing technologies, the moving height of the lifting and transferring module 30 is not affected by the lifting receiving module 8; the lifting and transferring module 30 and the lifting receiving module 8 work independently, and the lifting receiving module 8 can automatically adjust the storage height of the material tray. In this embodiment, the lifting drive 302 is a cylinder. In other embodiments, the lifting drive 302 can be set as a motor or other lifting drive structure; no limitation is made here, and it can be set according to the actual situation.

[0061] The material rack 1 is equipped with several sensors 60 for detecting the material tray at the first feeding station 1a, the pushing station 1b and the second feeding station 1c. The sensor 60 is a conventional application method for detecting the material tray and can be designed using existing technology. The several sensors 60 are not listed and explained here.

[0062] When using the material tray loading and unloading device 100 provided in this solution, both loading and unloading actions can be realized. The loading and unloading processes are described in detail below:

[0063] (1) Loading process: The multi-layer tray filled with products is placed into the hopper 4 of the first unloading station 1a. At the same time, the first cylinder 52 drives the first support plate 51 to extend, and the tray is supported on the first support plate 51. Then, the first cylinder 52 drives the first support plate 51 to retract, and at the same time, the third cylinder 63 drives the second support plate 64 to extend, that is, the multi-layer tray falls from the first support plate 51 onto the second support plate 64. At this time, the first support plate 51 is just located between the bottom first layer and the second layer tray. The first cylinder 52 drives the first support plate 51 to extend and lift the second to last layer and the bottom layer tray. The above-mentioned material trays are moved downwards by the second cylinder 61 driving the first support plate 62 to descend, causing the material trays on the second bearing plate 64 to move downwards. The third cylinder 63 drives the second bearing plate 64 to retract, and one of the material trays separated below falls onto the first conveyor line 2. The drive rod 95 drives the push block 94 to rotate, compressing the spring. At the same time, the push block 94 can lower its height so that the material tray enters the push station 1b from the first conveyor line 2. When the material tray is conveyed to the end of the first conveyor line 2, the first drive component 92 drives the moving frame 93 to move the push block 94 towards the end of the first conveyor line 2. At this point, without the action of the drive rod 95, the spring extension causes the push block 94 to rotate in the opposite direction and rise, so that the push block 94 abuts against one end of the material tray. The first drive component 92 drives the moving frame 93 to move the push block 94 further, pushing the material tray on the first conveyor line 2 to the second unloading station 1c. At the same time, the sixth cylinder 202 drives the fourth bearing plate 201 to extend horizontally, and the fourth support plate 201 supports the bottom of the material tray. The limiting plate 40 limits the front end of the material tray. The seventh cylinder 502 drives the pressing plate 501 to extend and press against the upper surface edge of the material tray. The conveying mechanism moves from the material tray... The product is removed from the tray to complete the feeding action. After the good products in the tray are absorbed, the fourth support plate 201 and the pressing plate 501 retract. The lifting drive component 302 drives the lifting plate 301 to rise to receive the tray. Then, the lifting drive component 302 drives the lifting plate 301 to fall and transfer the tray to the second conveyor line 3. Next, the second pushing module 10 pushes the tray to the second support component 7. Then, the fourth cylinder 72 drives the third support plate 71 to retract. At the same time, the lifting component 82 drives the receiving plate 81 to rise to receive the tray. The recovered trays are stacked on the receiving plate 81 from bottom to top.

[0064] (2) Unloading process: The process is similar to the loading process, except that the material tray placed in the hopper 4 of the first unloading station 1a is an empty material tray. Then the empty material tray is transferred to the second unloading station 1c to receive the product via the first conveyor line 2. Then the material tray filled with the product is transferred to the second conveyor line 3 via the lifting and transfer module 30. Then it is transported and stored on the lifting and receiving module 8. The specific process is similar to the loading process, and will not be described in detail here.

[0065] The above descriptions are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and all such modifications and improvements fall within the protection scope of this utility model.

Claims

1. A material tray loading and unloading device, characterized in that: It includes a pair of parallel material racks, with a first feeding station, a pushing station, and a second feeding station arranged sequentially along the length of the material racks. A first conveyor line located on the upper layer and a second conveyor line located on the lower layer are arranged inside the material racks. The first conveyor line extends from the first feeding station to the pushing station, and the second conveyor line extends from the pushing station to the second feeding station. A hopper for placing material trays is provided on the material rack at the first feeding station. The material trays in the hopper are conveyed to the second feeding station via the first conveyor line. A lifting and transferring module for transferring material trays to the second conveyor line is provided inside the material rack at the second feeding station. A lifting and receiving module for receiving material trays from the second conveyor line is provided below the hopper.

2. The material tray loading and unloading device as described in claim 1, characterized in that: The material rack is arranged in sequence below the material bin as follows: a first support component for supporting the material tray, a material tray separation component for separating the bottom material tray and transferring it to the first conveyor line, and a second support component for supporting the material tray. The first support component and the material tray separation component are located above the first conveyor line, and the second support component is located below the first conveyor line and connected to the second conveyor line. The lifting and receiving module is located directly below the second support component.

3. The material tray loading and unloading device as described in claim 2, characterized in that: The first support assembly includes a first support plate that supports the material tray and a first cylinder that drives the first support plate to extend or retract horizontally. The tray separation assembly includes a second cylinder, a first support plate driven by the second cylinder to move up and down, a third cylinder disposed on the first support plate, and a second bearing plate driven by the third cylinder to extend or retract horizontally. The second support assembly includes a third bearing plate that supports the material tray and a fourth cylinder that drives the third bearing plate to extend or retract horizontally. The support end of the third bearing plate is provided with a first step groove.

4. The material tray loading and unloading device as described in claim 1, characterized in that: The lifting and receiving module includes a receiving plate for receiving trays and a lifting component for driving the receiving plate to move up and down.

5. The material tray loading and unloading device as described in claim 1, characterized in that: The pushing station is equipped with a first pushing module located on the upper layer and a second pushing module located on the lower layer. The first pushing module and the second pushing module are symmetrically arranged and have opposite pushing directions. The first pushing module pushes the material tray on the first conveyor line into the second unloading station, and the second pushing module is used to push the material tray on the second conveyor line into the first unloading station.

6. The material tray loading and unloading device as described in claim 5, characterized in that: Both the first push module and the second push module include a second mounting frame, a first driving member disposed on the second mounting frame, a movable frame that moves along the length direction of the material rack driven by the first driving member, a push block rotatably disposed on the movable frame, and a driving rod disposed at one end of the second mounting frame that drives the push block to rotate. A clearance gap is provided between the bottom of the push block and the movable frame to allow the push block to rotate, and a spring is provided at the clearance gap.

7. The material tray loading and unloading device as described in claim 1, characterized in that: The material rack at the second feeding station is equipped with a support and positioning module for supporting the material tray, a limiting plate for limiting the front end of the material tray, and a positioning component for positioning the material tray. The lifting and transfer module is located directly below the support and positioning module.

8. The material tray loading and unloading device as described in claim 7, characterized in that: The support and positioning module includes a fourth bearing plate supported on the bottom of the tray and a sixth cylinder that drives the fourth bearing plate to extend or retract horizontally. The support end of the fourth bearing plate is provided with a second step groove. The positioning component includes several pressing plates pressed against the upper surface of the material tray, and some of the pressing plates are driven by the seventh cylinder to move horizontally or vertically.

9. The material tray loading and unloading device as described in claim 1, characterized in that: The lifting and transfer module includes a lifting plate that receives and transfers the tray, and a lifting drive component that drives the lifting plate to perform lifting and lowering actions.

10. The material tray loading and unloading device as described in claim 1, characterized in that: The material rack is equipped with several sensors for detecting the material tray at the first feeding station, the pushing station, and the second feeding station.

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