A tray placing device and a feeding device

Abstract

The application discloses a tray arranging device and a feeding equipment, relates to the technical field of processing, and discloses the following technical scheme: an in-tray roller module is used for moving a stacked tray; the out-tray roller module is arranged on a main support and is used for moving a stacked tray; a first longitudinal lifting module and a second longitudinal lifting module are arranged on the main support; the first longitudinal lifting module is located at the rear end of the in-tray roller module and is used for lifting a tray; the second longitudinal lifting module is located at the rear end of the out-tray roller module and is used for receiving a tray; a horizontal carrying module is arranged on the main support and is located above the first longitudinal lifting module and the second longitudinal lifting module; and the horizontal carrying module is used for transferring a tray on the first longitudinal lifting module to the second longitudinal lifting module. Through the above design, the efficiency of tray arranging is improved.

Description

Technical Field

[0001] This application relates to the field of processing technology, and in particular to a material tray arranging device and a feeding device. Background Technology

[0002] Currently, the testing lines for vehicle-mounted LiDAR generally use manual labor for the final material handling and tray placement. In order to ensure production capacity, personnel need to work in two shifts to meet the production capacity. The manual handling of material handling, tray placement, and tray stacking results in low efficiency of tray placement and feeding. Utility Model Content

[0003] The purpose of this application is to provide a tray placement device and a feeding device, which improves the efficiency of tray placement.

[0004] This application discloses a tray stacking device, which includes a main support, an infeed roller module, an outfeed roller module, a longitudinal lifting module, and a transverse conveying module. The infeed roller module is mounted on the main support and is used to move stacked trays. The outfeed roller module is mounted on the main support and is used to move stacked trays.

[0005] The longitudinal lifting module is mounted on the main support, and the longitudinal lifting module includes a first longitudinal lifting module and a second longitudinal lifting module. Both the first longitudinal lifting module and the second longitudinal lifting module are mounted on the main support. The first longitudinal lifting module is located at the rear end of the infeed roller module and is used to lift the material tray. The second longitudinal lifting module is located at the rear end of the outfeed roller module and is used to receive the material tray.

[0006] The lateral transport module is mounted on the main support and is located above the first longitudinal lifting module and the second longitudinal lifting module. The lateral transport module is used to transfer the material tray on the first longitudinal lifting module to the second longitudinal lifting module.

[0007] Optionally, the lateral transport module includes a lateral drive assembly, a left gripping drive assembly, a right gripping drive assembly, a left clamping plate, a right clamping plate, and two lateral transport slide rails;

[0008] The lateral drive assembly is connected to the main support, and the left clamping drive assembly and the right clamping drive assembly are both connected to the lateral drive assembly. The lateral drive assembly drives the left clamping drive assembly and the right clamping drive assembly to reciprocate on the first longitudinal lifting module and the second longitudinal lifting module.

[0009] The two transverse transport slide rails are connected to the main support. The two transverse transport slide rails are located on the first longitudinal lifting module and on both sides of the second longitudinal lifting module, respectively. The length direction of the transverse transport slide rails is consistent with the direction from the first longitudinal lifting module to the second longitudinal lifting module.

[0010] The left clamping plate is slidably connected to the two transverse transport slide rails, and the right clamping plate is slidably connected to the two transverse transport slide rails; the left clamping drive assembly is connected to the left clamping plate, and the right clamping drive assembly is connected to the right clamping plate. The left clamping drive assembly and the right clamping drive assembly are used to drive the left clamping plate and the right clamping plate to move closer to each other or further away from each other.

[0011] Optionally, the lateral drive assembly includes a lateral fixed plate, a linear module, and a lateral moving plate. The lateral fixed plate is connected to the main support, the linear module is disposed on the lateral fixed plate, and the lateral moving plate is connected to the linear module. The linear module is used to drive the lateral moving plate to move. The left clamping drive assembly and the right clamping drive assembly are respectively connected to both ends of the lateral moving plate.

[0012] Optionally, the tray placement device further includes a limiting plate and a limiting component. The limiting plate is connected to the transverse moving plate, and the limiting component is connected to the main support. The limiting plate and the limiting component are located on both sides of the length direction of the left clamping plate, and the limiting component is used to push the tray to abut against the limiting plate.

[0013] Optionally, the limiting component includes a fixed base, a pushing cylinder, and a limiting top block. The fixed base is connected to the main support, the pushing cylinder is disposed on the fixed base, and the limiting top block is connected to the pushing cylinder. The pushing cylinder is used to drive the limiting top block to move toward or away from the limiting plate.

[0014] Optionally, the longitudinal lifting module includes a longitudinal drive component, a support plate, and three longitudinal slide rails. All three longitudinal slide rails are connected to the main support. The support plate is slidably connected to the three longitudinal slide rails. The longitudinal drive component is mounted on the main support and connected to the support plate. The longitudinal drive component is used to drive the support plate to move up and down.

[0015] Optionally, the longitudinal lifting module further includes a left conveyor belt, a right conveyor belt, and a conveyor drive assembly. The left and right conveyor belts are both connected to the support plate, and the left and right conveyor belts are located on opposite sides of the support plate. The conveyor drive assembly is connected to both the left and right conveyor belts and is used to drive the left and right conveyor belts to move.

[0016] Optionally, the longitudinal lifting module further includes multiple side baffles and a rear elastic baffle. The rear elastic baffle is connected to the support plate and is located on the rear side of the support plate. The multiple side baffles are all connected to the support plate and are located on both sides of the support plate.

[0017] Optionally, the infeed roller module includes multiple rollers arranged side by side; the outfeed roller module also includes multiple rollers arranged side by side.

[0018] This application also discloses a feeding device, which includes a robotic arm device and a material tray arrangement device. The robotic arm device is used to pick up materials and transport them to an empty material tray on the material tray arrangement device.

[0019] Compared to existing methods that rely on manual material stacking, this application utilizes an infeed roller module to transport stacked empty pallets to a first longitudinal lifting module. A transverse transport module then transports the top empty pallet from the first longitudinal lifting module to a second longitudinal lifting module. The loading process can then be completed on the second longitudinal lifting module. Finally, multiple stacked full pallets on the second longitudinal lifting module are transported out via an outfeed roller module. This eliminates the need for manual handling and stacking of full pallets, thus preventing material damage during manual operation and improving the efficiency of pallet stacking. Attached Figure Description

[0020] The accompanying drawings, which form part of the specification, are used to provide a further understanding of the embodiments of this application and illustrate the implementation methods of this application, together with the textual description, to explain the principles of this application. Obviously, the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings:

[0021] Figure 1 This is a schematic diagram of a feeding device according to an embodiment of this application;

[0022] Figure 2 This is a schematic diagram of a material tray stacking device according to an embodiment of this application;

[0023] Figure 3 This is a schematic diagram of a lateral transport module according to an embodiment of this application;

[0024] Figure 4 This is a schematic diagram of a longitudinal lifting module according to an embodiment of this application;

[0025] Figure 5 This is a schematic diagram of a left conveyor belt and a right conveyor belt according to an embodiment of this application.

[0026] Among them, 10 is the feeding equipment; 20 is the robotic arm device; 30 is the material tray placement device; 40 is the material tray; 100 is the main support; 210 is the infeed roller module; 220 is the outfeed roller module; 230 is the roller; 300 is the longitudinal lifting module; 310 is the first longitudinal lifting module; 320 is the second longitudinal lifting module; 330 is the longitudinal drive assembly; 331 is the motor; 332 is the chain; 340 is the bearing plate; 350 is the longitudinal slide rail; 361 is the left conveyor belt; 362 is the right conveyor belt; 3 63. Conveyor drive assembly; 370. Side baffle; 380. Rear elastic baffle; 400. Lateral transport module; 410. Lateral drive assembly; 411. Lateral fixing plate; 412. Linear module; 413. Lateral moving plate; 421. Left clamping drive assembly; 422. Right clamping drive assembly; 431. Left clamping plate; 432. Right clamping plate; 440. Lateral transport slide rail; 510. Limiting plate; 520. Limiting assembly; 521. Fixing base; 522. Push cylinder; 523. Limiting top block. Detailed Implementation

[0027] It should be understood that the terminology, specific structural and functional details used herein are merely for describing particular embodiments and are representative. However, this application may be implemented in many alternative forms and should not be construed as being limited to the embodiments set forth herein.

[0028] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating relative importance or implying the number of technical features indicated. Therefore, unless otherwise stated, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; "multiple" means two or more. The term "comprising" and any variations thereof mean non-exclusive inclusion, where one or more other features, integers, steps, operations, units, components, and / or combinations thereof may be present or added.

[0029] In addition, terms such as “center,” “horizontal,” “up,” “down,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer” that indicate orientation or positional relationship are based on the orientation or relative positional relationship shown in the accompanying drawings. They are only for the purpose of simplifying the description of this application and do not indicate that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0030] Furthermore, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0031] The present application will now be described in detail with reference to the accompanying drawings and optional embodiments.

[0032] Figure 1 This is a schematic diagram of a feeding device according to an embodiment of this application, as shown below. Figure 1 As shown, this application discloses a feeding device 10, which includes a robotic arm device 20 and a material tray placement device 30. The robotic arm device 20 is used to pick up materials and transport them to an empty material tray 40 on the material tray placement device 30.

[0033] Figure 2 This is a schematic diagram of a tray-stacking device according to an embodiment of this application, as shown below. Figure 2 As shown, this application also discloses a tray stacking device 30, which includes a main support 100, an infeed roller module 210, an outfeed roller module 220, a longitudinal lifting module 300, and a transverse conveying module 400. The infeed roller module 210 is disposed on the main support 100 and is used to move the stacked trays 40. The outfeed roller module 220 is disposed on the main support 100 and is used to move the stacked trays 40.

[0034] The longitudinal lifting module 300 is disposed on the main support 100, and the longitudinal lifting module 300 includes a first longitudinal lifting module 310 and a second longitudinal lifting module 320. Both the first longitudinal lifting module 310 and the second longitudinal lifting module 320 are disposed on the main support 100. The first longitudinal lifting module 310 is located at the rear end of the infeed roller module 210 and is used to lift the material tray 40. The second longitudinal lifting module 320 is located at the rear end of the outfeed roller module 220 and is used to receive the material tray 40.

[0035] The lateral transport module 400 is disposed on the main support 100 and is located above the first longitudinal lifting module 310 and the second longitudinal lifting module 320. The lateral transport module 400 is used to transfer the material tray 40 on the first longitudinal lifting module 310 to the second longitudinal lifting module 320.

[0036] For example, multiple stacked empty trays 40 can be placed into the tray feeding roller module 210 by an AGV feeding vehicle, and the tray feeding roller module 210 transports the multiple stacked empty trays 40 to the first longitudinal lifting module 310.

[0037] Then, the lateral transport module 400 transports the topmost empty material tray 40 among the multiple stacked empty material trays 40 on the first longitudinal lifting module 310 to the second longitudinal lifting module 320. The second longitudinal lifting module 320 rises and receives the material tray 40 transferred from the lateral transport module 400. Then, the robotic arm device 20 grips the material and transports it to the empty material tray 40 on the second longitudinal lifting module 320.

[0038] After a tray 40 is filled, the lateral transport module 400 transports the topmost empty tray 40 among the multiple stacked empty trays 40 on the first longitudinal lifting module 310 to the second longitudinal lifting module 320. The second longitudinal lifting module 320 descends and receives the tray 40 transferred by the lateral transport module 400, and then the robotic arm device 20 picks up the material and transports it to the empty tray 40 on the second longitudinal lifting module 320; and the above steps are repeated.

[0039] Multiple stacked full pallets 40 are formed on the second longitudinal lifting module 320. Then, the second longitudinal lifting module 320 transports the multiple stacked full pallets 40 to the discharge roller module 220. The discharge roller module 220 transports the multiple stacked full pallets 40 to the end, where they are received by the AGV feeding vehicle, thus completing the feeding step.

[0040] Compared to existing methods that rely on manual material stacking, this application utilizes an infeed roller module 210 to transport stacked empty material trays 40 to a first longitudinal lifting module 310. A transverse transport module 400 then transports the top empty material tray 40 from the first longitudinal lifting module 310 to a second longitudinal lifting module 320. The loading process can then be completed on the second longitudinal lifting module 320. Finally, multiple stacked full material trays 40 on the second longitudinal lifting module 320 are transported out via an outfeed roller module 220. This eliminates the need for manual handling and stacking of the full material trays 40, thus avoiding material damage during manual operation and improving the efficiency of tray stacking.

[0041] The infeed roller module 210 includes multiple rollers 230, which are arranged side by side; the outfeed roller module 220 also includes multiple rollers 230, which are arranged side by side.

[0042] The material tray 40 is transported by multiple rollers 230 arranged side by side. Compared with the solution of using a conveyor belt, the load-bearing capacity of multiple rollers 230 arranged side by side is stronger.

[0043] Figure 3 This is a schematic diagram of a lateral transport module according to an embodiment of this application, as shown below. Figure 3 As shown, the lateral transport module 400 includes a lateral drive assembly 410, a left clamping drive assembly 421, a right clamping drive assembly 422, a left clamping plate 431, a right clamping plate 432, and two lateral transport slide rails 440.

[0044] The lateral drive assembly 410 is connected to the main support 100. The left clamping drive assembly 421 and the right clamping drive assembly 422 are both connected to the lateral drive assembly 410. The lateral drive assembly 410 drives the left clamping drive assembly 421 and the right clamping drive assembly 422 to reciprocate on the first longitudinal lifting module 310 and the second longitudinal lifting module 320.

[0045] The two transverse transport slide rails 440 are connected to the main support 100. The two transverse transport slide rails 440 are located on the first longitudinal lifting module 310 and on both sides of the second longitudinal lifting module 320, respectively. The length direction of the transverse transport slide rails 440 is consistent with the direction of the first longitudinal lifting module 310 toward the second longitudinal lifting module 320.

[0046] The left clamping plate 431 is slidably connected to the two transverse transport slide rails 440, and the right clamping plate 432 is slidably connected to the two transverse transport slide rails 440; the left clamping drive assembly 421 is connected to the left clamping plate 431, and the right clamping drive assembly 422 is connected to the right clamping plate 432. The left clamping drive assembly 421 and the right clamping drive assembly 422 are used to drive the left clamping plate 431 and the right clamping plate 432 to move closer to each other or further away from each other.

[0047] The left clamping drive assembly 421 and the right clamping drive assembly 422 drive the left clamping plate 431 and the right clamping plate 432 to clamp the material tray 40 from both sides, so that the material tray 40 can move smoothly from the first longitudinal lifting module 310 to the second longitudinal lifting module 320.

[0048] The lateral drive assembly 410 includes a lateral fixed plate 411, a linear module 412, and a lateral moving plate 413. The lateral fixed plate 411 is connected to the main support 100. The linear module 412 is disposed on the lateral fixed plate 411. The lateral moving plate 413 is connected to the linear module 412. The linear module 412 is used to drive the lateral moving plate 413 to move. The left clamping drive assembly 421 and the right clamping drive assembly 422 are respectively connected to both ends of the lateral moving plate 413.

[0049] By setting a transverse moving plate 413, and then connecting the left clamping drive assembly 421 and the right clamping drive assembly 422 to the two ends of the transverse moving plate 413 respectively, the distance between the left clamping drive assembly 421 and the right clamping drive assembly 422 can be prevented from changing during movement, thereby preventing the distance between the left clamping plate 431 and the right clamping plate 432 from changing, thus improving the reliability of the transfer tray 40.

[0050] The tray placement device 30 further includes a limiting plate 510 and a limiting component 520. The limiting plate 510 is connected to the transverse moving plate 413, and the limiting component 520 is connected to the main support 100. The limiting plate 510 and the limiting component 520 are respectively located on both sides of the length direction of the left clamping plate 431. The limiting component 520 is used to push the tray 40 to abut against the limiting plate 510. In other words, the limiting plate 510 and the limiting component 520 are located on the front and rear sides of the tray 40, and the left clamping plate 431 and the right clamping plate 432 are located on the left and right sides of the tray 40.

[0051] The limiting component 520 includes a fixed base 521, a pushing cylinder 522, and a limiting top block 523. The fixed base 521 is connected to the main support 100. The pushing cylinder 522 is disposed on the fixed base 521. The limiting top block 523 is connected to the pushing cylinder 522. The pushing cylinder 522 is used to drive the limiting top block 523 to move toward or away from the limiting plate 510.

[0052] Before the left clamping drive assembly 421 and the right clamping drive assembly 422 drive the left clamping plate 431 and the right clamping plate 432 to clamp the material tray 40 from both sides, the material tray 40 is first pushed to the limit block 523 by the push cylinder 522 to abut against the limit plate 510, thereby ensuring that the left clamping plate 431 and the right clamping plate 432 can clamp the material tray 40 smoothly. After clamping the material tray 40, the cylinder 522 is pushed to drive the limit block 523 away from the material tray 40 to avoid affecting the movement of the material tray 40.

[0053] Figure 4This is a schematic diagram of a longitudinal lifting module according to an embodiment of this application, as shown below. Figure 4 As shown, the longitudinal lifting module 300 includes a longitudinal drive assembly 330, a support plate 340, and three longitudinal slide rails 350. All three longitudinal slide rails 350 are connected to the main support 100. The support plate 340 is slidably connected to the three longitudinal slide rails 350. The longitudinal drive assembly 330 is disposed on the main support 100 and is connected to the support plate 340. The longitudinal drive assembly 330 is used to drive the support plate 340 to move up and down.

[0054] The longitudinal drive assembly 330 drives the support plate 340 to slide up and down on three longitudinal slide rails 350, thereby realizing the function of the support tray 40. The three longitudinal slide rails 350 are respectively set on the left and right sides of the support plate 340, which can ensure that the support plate 340 can move smoothly when moving up and down.

[0055] The longitudinal drive assembly 330 includes a motor 331 and a chain 332. The chain 332 is connected to the support plate 340, and the motor 331 is connected to the chain 332. The upward and downward movement of the support plate 340 is achieved by the forward and reverse rotation of the motor 331.

[0056] Figure 5 This is a schematic diagram of a left and right conveyor belt according to an embodiment of this application, as shown below. Figure 5 As shown, the longitudinal lifting module 300 also includes a left conveyor belt 361, a right conveyor belt 362, and a conveyor drive assembly 363. The left conveyor belt 361 and the right conveyor belt 362 are both connected to the support plate 340. The left conveyor belt 361 and the right conveyor belt 362 are located on both sides of the support plate 340. The conveyor drive assembly 363 is connected to both the left conveyor belt 361 and the right conveyor belt 362. The conveyor drive assembly 363 is used to drive the left conveyor belt 361 and the right conveyor belt 362 to move.

[0057] The left conveyor belt 361 and the right conveyor belt 362 on the first longitudinal lifting module 310 move in directions away from the infeed roller module 210; the left conveyor belt 361 and the right conveyor belt 362 on the second longitudinal lifting module 320 move in directions toward the outfeed roller module 220.

[0058] When the material trays 40 stacked on the feed roller module 210 are transferred to the support plate 340 on the first longitudinal lifting module 310, the left conveyor belt 361 and the right conveyor belt 362 on the first longitudinal lifting module 310 move synchronously to provide tension to the material trays 40.

[0059] When transferring the stacked trays 40 on the support plate 340 of the second longitudinal lifting module 320 to the discharge roller module 220, the left conveyor belt 361 and the right conveyor belt 362 on the second longitudinal lifting module 320 move synchronously to provide thrust to the trays 40, thereby ensuring the reliability of the transfer of the trays 40.

[0060] Furthermore, the longitudinal lifting module 300 also includes multiple side baffles 370 and a rear elastic baffle 380. The rear elastic baffle 380 is connected to the support plate 340 and is located on the rear side of the support plate 340. The multiple side baffles 370 are all connected to the support plate 340, and the multiple side baffles 370 are respectively located on both sides of the support plate 340.

[0061] Multiple side baffles 370 are used to prevent the tray 40 on the longitudinal lifting module 300 from moving left and right. The rear elastic baffle 380 is used to buffer the impact force when the tray 40 moves onto the first longitudinal lifting module 310 and to limit the tray 40, so as to avoid displacement of the stacked trays 40, which would cause the left clamping plate 431 and right clamping plate 432 of the transverse conveying module 400 to be unable to clamp.

[0062] It should be noted that the inventive concept of this application can form many embodiments, but due to the limited space of the application documents, they cannot all be listed. Therefore, without conflict, the embodiments described above or the technical features can be arbitrarily combined to form new embodiments. After the embodiments or technical features are combined, the original technical effect will be enhanced.

[0063] The above description, in conjunction with specific optional embodiments, provides a further detailed explanation of this application and should not be construed as limiting the specific implementation of this application to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of this application, and all such modifications or substitutions should be considered within the scope of protection of this application.

Claims

1. A tray-stacking device, characterized in that, The tray stacking device includes a main support, an infeed roller module, an outfeed roller module, a longitudinal lifting module, and a transverse conveying module; the infeed roller module is mounted on the main support and is used to move the stacked trays; the outfeed roller module is mounted on the main support and is used to move the stacked trays. The longitudinal lifting module is mounted on the main support, and the longitudinal lifting module includes a first longitudinal lifting module and a second longitudinal lifting module. Both the first longitudinal lifting module and the second longitudinal lifting module are mounted on the main support. The first longitudinal lifting module is located at the rear end of the infeed roller module and is used to lift the material tray. The second longitudinal lifting module is located at the rear end of the outfeed roller module and is used to receive the material tray. The lateral transport module is mounted on the main support and is located above the first longitudinal lifting module and the second longitudinal lifting module. The lateral transport module is used to transfer the material tray on the first longitudinal lifting module to the second longitudinal lifting module.

2. The tray-stacking device according to claim 1, characterized in that, The lateral transport module includes a lateral drive assembly, a left clamping drive assembly, a right clamping drive assembly, a left clamping plate, a right clamping plate, and two lateral transport slide rails. The lateral drive assembly is connected to the main support, and the left clamping drive assembly and the right clamping drive assembly are both connected to the lateral drive assembly. The lateral drive assembly drives the left clamping drive assembly and the right clamping drive assembly to reciprocate on the first longitudinal lifting module and the second longitudinal lifting module. The two transverse transport slide rails are connected to the main support. The two transverse transport slide rails are located on the first longitudinal lifting module and on both sides of the second longitudinal lifting module, respectively. The length direction of the transverse transport slide rails is consistent with the direction from the first longitudinal lifting module to the second longitudinal lifting module. The left clamping plate is slidably connected to the two transverse transport slide rails, and the right clamping plate is slidably connected to the two transverse transport slide rails; the left clamping drive assembly is connected to the left clamping plate, and the right clamping drive assembly is connected to the right clamping plate. The left clamping drive assembly and the right clamping drive assembly are used to drive the left clamping plate and the right clamping plate to move closer to each other or further away from each other.

3. The tray-stacking device according to claim 2, characterized in that, The lateral drive assembly includes a lateral fixed plate, a linear module, and a lateral moving plate. The lateral fixed plate is connected to the main support, the linear module is disposed on the lateral fixed plate, and the lateral moving plate is connected to the linear module. The linear module is used to drive the lateral moving plate to move. The left clamping drive assembly and the right clamping drive assembly are respectively connected to both ends of the lateral moving plate.

4. The tray-stacking device according to claim 3, characterized in that, The tray placement device further includes a limiting plate and a limiting component. The limiting plate is connected to the transverse moving plate, and the limiting component is connected to the main support. The limiting plate and the limiting component are located on both sides of the length direction of the left clamping plate. The limiting component is used to push the tray to abut against the limiting plate.

5. The tray-stacking device according to claim 4, characterized in that, The limiting component includes a fixed base, a pushing cylinder, and a limiting top block. The fixed base is connected to the main support, the pushing cylinder is disposed on the fixed base, and the limiting top block is connected to the pushing cylinder. The pushing cylinder is used to drive the limiting top block to move toward or away from the limiting plate.

6. The tray-stacking device according to claim 1, characterized in that, The longitudinal lifting module includes a longitudinal drive component, a support plate, and three longitudinal slide rails. All three longitudinal slide rails are connected to the main support. The support plate is slidably connected to the three longitudinal slide rails. The longitudinal drive component is mounted on the main support and connected to the support plate. The longitudinal drive component is used to drive the support plate to move up and down.

7. The tray-stacking device according to claim 6, characterized in that, The longitudinal lifting module further includes a left conveyor belt, a right conveyor belt, and a conveyor drive assembly. The left and right conveyor belts are both connected to the support plate and are located on opposite sides of the support plate. The conveyor drive assembly is connected to both the left and right conveyor belts and is used to drive the left and right conveyor belts to move.

8. The tray-stacking device according to claim 6, characterized in that, The longitudinal lifting module also includes multiple side baffles and a rear elastic baffle. The rear elastic baffle is connected to the support plate and is located on the rear side of the support plate. The multiple side baffles are all connected to the support plate and are located on both sides of the support plate.

9. The tray-stacking device according to claim 1, characterized in that, The infeed roller module includes multiple rollers arranged side by side; the outfeed roller module also includes multiple rollers arranged side by side.

10. A feeding device, characterized in that, The feeding equipment includes a robotic arm device and a material tray placement device as described in any one of claims 1-9, wherein the robotic arm device is used to grip materials and transport them to an empty material tray on the material tray placement device.

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