Feeding equipment

Abstract

The invention relates to the technical field of vacuum coating, and discloses feeding equipment which comprises a rack assembly, feeding assemblies and a traction assembly are arranged on the rack assembly, the two feeding assemblies are arranged side by side, the traction assembly is located between the two feeding assemblies, each feeding assembly comprises a full-load position and a no-load position, and the traction assembly is located between the full-load position and the no-load position. A carrying disc is stored on one feeding assembly and used for pulling the carrying disc to move from a full-load position to a no-load position, the carrying disc is used for storing mobile phone volume keys, a jig disc is stored on the other feeding assembly and used for pulling the jig disc to move from the no-load position to the full-load position, and the jig disc is used for receiving the mobile phone volume keys and clamping the mobile phone volume keys. In the operation process of the two feeding assemblies, the mobile phone volume keys on the carrying discs are pulled and transferred to the jig discs through the traction assemblies, and the multiple carrying discs or the jig discs can be stacked and stored in the full-load positions and the no-load positions of the feeding assemblies in the vertical direction.

Description

Technical Field

[0001] This invention relates to the field of vacuum coating technology, specifically to the field of component clamping technology, and particularly to a feeding device. Background Technology

[0002] Vacuum coating technology is commonly used in the manufacturing process of mobile phone volume buttons to achieve purposes such as increasing the metallic texture, enhancing wear resistance, and resisting fingerprints.

[0003] Before vacuum coating, the volume buttons on a mobile phone need to be arranged precisely, orderly, and efficiently on a carrier plate according to requirements. Then, they are transferred to a special fixture plate, which clamps the buttons. Finally, the fixture plate is transferred to a vacuum coating machine for vacuum coating treatment.

[0004] In existing technologies, there are manual and automated methods for arranging scattered buttons on a tray. However, the common method for transferring buttons from the carrier tray to the fixture tray is manual transfer, which is time-consuming, labor-intensive, and inefficient.

[0005] Based on the above problems, this invention proposes a feeding device to automatically transfer the buttons on the display tray to the fixture tray, and to orderly stack empty display trays and orderly stack fixture trays with full buttons. This not only greatly improves the transfer efficiency, but also facilitates the storage or transfer of display trays and fixture trays. Summary of the Invention

[0006] To address the problems mentioned in the background above, the present invention provides a feeding device.

[0007] To achieve the above-mentioned technical objectives, the technical solution adopted by the present invention is as follows.

[0008] A feeding device includes a frame assembly, on which a feeding component and a traction component are provided. Two feeding components are arranged side by side and the traction component is located between the two feeding components. The loading assembly includes a full-load position and an empty position. One loading assembly holds a carrier tray and is used to pull the carrier tray from the full-load position to the empty position. The carrier tray is used to hold the mobile phone volume buttons. The other loading assembly holds a jig tray and is used to pull the jig tray from the empty position to the full-load position. The jig tray is used to receive the mobile phone volume buttons and clamp them. During the operation of the two loading assemblies, the mobile phone volume buttons on the carrier tray are pulled to the jig tray by the traction assembly. Both the full-load and empty-load positions of the feeding assembly can stack and store several trays or jig trays in the vertical direction.

[0009] As a further improvement and optimization of the present invention, the feeding component includes a conveyor belt, the conveying direction of the conveyor belt is arranged horizontally, and two feeding components are arranged along the width direction of the conveyor belt. The two sides of the carrier or jig can be supported by two conveyor belts respectively, and move under the traction of the conveyor belts; Each end of the conveyor belt is equipped with a storage component, which is used to stack and store the carrier tray or jig tray in the vertical direction.

[0010] As a further improvement and optimization of the present invention, the storage component includes L-shaped columns, four L-shaped columns are provided and the four L-shaped columns together form a rectangular storage area. The shapes of the storage areas of the two feeding components are respectively matched with the shapes of the carrier tray and the jig tray. A lifting unit is provided below the storage area and a support unit is provided on both sides of the storage area.

[0011] As a further improvement and optimization of the present invention, the bottom of the two L-shaped columns near the conveyor belt are provided with inlet and outlet gaps, and the two conveyor belts pass through the two inlet and outlet gaps respectively.

[0012] As a further improvement and optimization of the present invention, the lifting unit includes a horizontally arranged lifting seat located directly below the storage area. The lifting seat is capable of moving in the vertical direction. The lifting unit also includes a first linear module for driving the lifting seat to move in the vertical direction.

[0013] As a further improvement and optimization of the present invention, the lower surface of the lifting seat is provided with a vertically arranged guide rod, and the frame assembly is provided with a vertically arranged guide sleeve, with the guide rod movably sleeved in the guide sleeve.

[0014] As a further improvement and optimization of the present invention, four guide rods are provided, each located near one of the four right angles of the lifting seat, and four guide sleeves are provided accordingly.

[0015] As a further improvement and optimization of the present invention, the support unit includes a movable seat that is slidably disposed on the frame assembly in the horizontal direction and located on one side of the storage area, and a second linear module for driving the movable seat to move. The movable seat is provided with a support plate on the side facing the storage area.

[0016] As a further improvement and optimization of the present invention, the traction component includes a robotic arm and an adsorption unit disposed at the end of the robotic arm. The negative pressure adsorption head includes a plurality of negative pressure adsorption heads arranged in an array along the horizontal direction. The negative pressure adsorption head includes a plurality of adsorption nozzles arranged in an array along the horizontal direction. The array direction of the adsorption nozzles is perpendicular to the array direction of the negative pressure adsorption head. The bottom of the adsorption nozzles is provided with a plurality of negative pressure adsorption holes.

[0017] The process by which the storage unit pulls the trays from the storage area one by one onto the conveyor belt includes the following steps: A1: The carrier plate is supported by the lifting seat. The lifting seat is driven to move upward by the first linear module, so that the lower surface of the second carrier plate is flush with the upper surface of the supporting plate from bottom to top. A2: The second linear module drives the movable seat and the support plate closer to the storage area, so that the support plate is inserted into the area between the first and second trays from bottom to top, and supports the other trays except the bottom tray through the support plate. A3: The lifting seat is driven to move down by the first linear module, so that the two sides of the bottom tray are supported by two conveyor belts respectively. A4: The pallet is pulled away by the conveyor belt, and the lifting seat is driven to move upward by the first linear module. The lifting seat re-contacts the lowest pallet in the storage area. The movable seat and the supporting plate are driven away from the storage area by the second linear module. The pallet in the storage area is supported by the lifting seat again. By repeating steps A1-A4, the trays in the storage area can be pulled onto the conveyor belt one by one. The process of stacking carrier trays in the storage area for storing components includes the following steps: B1: The conveyor belt traction tray is located directly above the lifting seat; B2: The lifting seat is moved upward by the first linear module, and the pallet is supported by the lifting seat; The lifting seat continues to move upward, making the lower surface of the carrier plate flush with the upper surface of the support plate; B3: The second linear module drives the movable seat and the support plate closer to the storage area, and the support plate supports the tray. B4: The first linear module drives the lifting platform to move down, and the next pallet is pulled by the conveyor belt to the top of the lifting platform; B5: The lifting seat is moved upward by the first linear module, and the pallet on the lifting seat approaches or contacts the pallet on the support plate. Then, the movable seat and the support plate are moved away from the storage area by the second linear module, and all pallets are supported by the lifting seat. B6: The lifting seat continues to move upwards until the lower surface of the lowest tray is flush with the upper surface of the support plate; B7: The second linear module drives the movable seat and the support plate closer to the storage area, and the support plate again supports all the pallets. The lifting seat moves down, and the next pallet is pulled by the conveyor belt to the top of the lifting seat. Repeat steps B5-B7 to stack the pallets in the storage area.

[0018] Compared with the prior art, the beneficial effects of this invention are as follows: In this case, a loading component a pulls a tray fully loaded with mobile phone volume buttons onto a conveyor belt one by one, while a loading component b pulls an empty jig tray onto the conveyor belt one by one. During the movement of the trays and jig trays by the conveyor belt, a robotic arm and a negative pressure suction head work together to transfer the mobile phone volume buttons from the trays to the jig trays. After the transfer is completed, the empty trays are stacked in an orderly manner, and the full jig trays are also stacked in an orderly manner. The entire process is fully automated, which not only greatly improves the transfer efficiency but also facilitates the storage or transfer of trays and jig trays. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the present invention; Figure 3 Schematic diagram of the feeding assembly Figure 1 ; Figure 4 Schematic diagram of the feeding assembly Figure 2 ; Figure 5 This is a schematic diagram of the structure for storing components; Figure 6 This is a schematic diagram of the lifting unit and the supporting unit; Figure 7 This is a schematic diagram of the traction assembly. Figure 8 This is a schematic diagram of the negative pressure adsorption head.

[0020] The labels in the attached diagram are: 100. Frame assembly; 200. Feeding assembly; 201. Conveyor belt; 202. Storage components; 203. L-shaped column; 204. Inlet / outlet notch; 205. Lifting unit; 2051. Lifting seat; 2052. Guide rod; 2053. Guide sleeve; 2054. First linear module; 206. Support unit; 2061. Second linear module; 2062. Movable seat; 2063. Support plate; 300. Traction assembly; 301. Robotic arm; 302. Negative pressure adsorption head; 3021. Adsorption nozzle; 3022. Negative pressure adsorption hole. Detailed Implementation

[0021] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0022] Reference Figures 1-8 A feeding device includes a frame assembly 100, on which a feeding component 200 and a traction component 300 are mounted, wherein: There are two feeding components 200 arranged side by side, and the traction component 300 is located between the two feeding components 200; The loading assembly 200 includes a full-load position and an empty position. One loading assembly 200 stores a carrier tray and is used to pull the carrier tray from the full-load position to the empty position. The carrier tray is used to store the mobile phone volume buttons. The other loading assembly 200 stores a jig tray and is used to pull the jig tray from the empty position to the full-load position. The jig tray is used to receive the mobile phone volume buttons and clamp them. During the operation of the two loading assemblies 200, the mobile phone volume buttons on the carrier tray are pulled to the jig tray by the traction assembly 300. It is important to note that while it is possible to manually place the phone volume buttons on the tray, this design prioritizes automation. For example, it utilizes a vibratory feeder combined with a vision-guided robot to automate the placement. Specifically, the vibratory feeder transports the phone volume buttons in an orderly fashion to designated locations. Then, guided by a vision camera, a robotic arm uses a suction nozzle to precisely grasp the buttons and place them into each cavity of the tray. The cavities on the tray are designed to match the button shapes, ensuring fixed positions. This achieves the goal of automatically and orderly placing the phone volume buttons onto the tray. Of course, other automated placement technologies are also possible. Furthermore, the aforementioned automated placement technology using a vibratory feeder and a vision-guided robot is achievable with existing technology and will not be elaborated upon further.

[0023] Reference Figure 3 and Figure 4 The feeding assembly 200 includes a conveyor belt 201, which is arranged horizontally in the conveying direction. There are two conveyor belts 201 along their width direction. In addition, the two feeding assemblies 200 are distributed along the width direction of the conveyor belt 201, that is, the distance between the two feeding assemblies 200 is parallel to the width direction of the conveyor belt 201.

[0024] The two sides of the carrier or jig can be supported by two conveyor belts 201 respectively, and move under the traction of the conveyor belts 201.

[0025] Each end of the conveyor belt 201 is provided with a storage component 202, which is used to stack and store the carrier tray or jig tray in an orderly manner in the vertical direction.

[0026] Reference Figure 5 and Figure 6The storage component 202 includes four L-shaped columns 203, which together form a rectangular storage area. The shapes of the storage areas of the two feeding components 200 respectively match the shapes of the carrier tray and the jig tray. Furthermore, the storage area facing the conveyor belt 201 is provided with an inlet / outlet gap 204 for the carrier tray or jig tray to enter or exit the storage area. Moreover, there are two inlet / outlet gaps 204, which are located at the bottom of the two L-shaped columns 203 near the conveyor belt 201. The two conveyor belts 201 pass through the two inlet / outlet gaps 204 respectively. Therefore, the carrier tray or jig tray can be pulled to the bottom of the storage area by the conveyor belts 201.

[0027] The storage component 202 also includes a lifting unit 205 located below the storage area and two support units 206 located on both sides of the storage area. Through the cooperation of the lifting unit 205 and the two support units 206, it can receive the carrier tray or jig tray and stack them in an orderly manner in the storage area, or pull the carrier tray or jig tray stacked in the storage area onto the conveyor belt 201 one by one.

[0028] Reference Figure 6 The lifting unit 205 includes a horizontally arranged lifting seat 2051 located directly below the storage area. The lifting seat 2051 can move vertically. Furthermore, a vertically arranged guide rod 2052 is provided on the lower surface of the lifting seat 2051, and a vertically arranged guide sleeve 2053 is provided on the frame assembly 100. The guide rod 2052 is movably sleeved in the guide sleeve 2053. Through the cooperation of the guide rod 2052 and the guide sleeve 2053, the lifting seat 2051 and the frame assembly 100 form a vertical sliding connection, thereby enabling the lifting seat 2051 to move vertically. Furthermore, four guide rods 2052 are provided, each close to one of the four right angles of the lifting seat 2051, and four guide sleeves 2053 are provided accordingly, which makes the vertical movement of the lifting seat 2051 more stable and smooth.

[0029] The lifting unit 205 also includes a first linear module 2054 for driving the lifting seat 2051 to move in the vertical direction. Furthermore, the first linear module 2054 can adopt existing electric telescopic rod technology or existing lead screw linear movement technology, etc., which will not be elaborated further.

[0030] Reference Figure 6 The support unit 206 includes a movable seat 2062 that is slidably mounted on the frame assembly 100 in the horizontal direction and located on one side of the storage area, and a second linear module 2061 for driving the movable seat 2062 to move. The second linear module 2061 can adopt existing electric telescopic rod technology or existing lead screw linear movement technology, etc., which will not be described in detail.

[0031] The movable seat 2062 is provided with a support plate 2063 on the side facing the storage area.

[0032] The process by which the storage component 202 pulls the trays or jigs from the storage area one by one onto the conveyor belt 201 is specifically manifested as follows: First, the carrier is supported by the lifting seat 2051. The lifting seat 2051 is driven to move upward by the first linear module 2054, so that the lower surface of the second carrier from bottom to top is flush with the upper surface of the supporting plate 2063. Then, the second linear module 2061 drives the movable seat 2062 and the support plate 2063 to approach the storage area, so that the support plate 2063 is inserted into the area between the first and second trays from bottom to top, and supports the other trays except the bottom tray through the support plate 2063. Then, the lifting seat 2051 is driven to move down by the first linear module 2054, so that the two sides of the bottom tray are supported by two conveyor belts 201 respectively. Then, the pallets are pulled away by the conveyor belt 201, and the lifting seat 2051 is driven to move upward by the first linear module 2054. The lifting seat 2051 re-contacts the lowest pallet in the storage area. The movable seat 2062 and the supporting plate 2063 are driven away from the storage area by the second linear module 2061. The pallets in the storage area are supported by the lifting seat 2051 again. By repeating the above process, the pallets in the storage area can be pulled onto the conveyor belt 201 one by one.

[0033] The process of orderly stacking carrier trays or jig trays in the storage area of ​​storage component 202 is specifically manifested as follows: First, the conveyor belt 201 traction tray is located directly above the lifting seat 2051; Then, the lifting seat 2051 is moved upward by the first linear module 2054, and the carrier is supported by the lifting seat 2051. Then, the lifting seat 2051 continues to move upward, so that the lower surface of the carrier plate is flush with the upper surface of the support plate 2063. Then, the second linear module 2061 drives the movable seat 2062 and the support plate 2063 to approach the storage area, and the support plate 2063 supports the tray. Then, the first linear module 2054 drives the lifting seat 2051 to move down, and the next pallet is pulled by the conveyor belt 201 to be directly above the lifting seat 2051. Then, the first linear module 2054 drives the lifting seat 2051 to move upward, and the pallet on the lifting seat 2051 approaches or contacts the pallet on the supporting plate 2063. After that, the second linear module 2061 drives the movable seat 2062 and the supporting plate 2063 away from the storage area, and all pallets are supported by the lifting seat 2051. Then, the lifting seat 2051 continues to move upward, so that the lower surface of the lowest tray is flush with the upper surface of the supporting plate 2063. Then, the second linear module 2061 drives the movable seat 2062 and the supporting plate 2063 to approach the storage area. The supporting plate 2063 supports all the pallets again, while the lifting seat 2051 moves down and the next pallet is pulled by the conveyor belt 201 to the top of the lifting seat 2051. This process is repeated to stack the pallets in the storage area in an orderly manner.

[0034] Reference Figure 2 , Figure 7 and Figure 8 The traction component 300 is located between the two feeding components 200. The traction component 300 includes a robot arm 301 and an adsorption unit disposed at the end of the robot arm 301. Furthermore, the negative pressure adsorption head 302 includes a plurality of negative pressure adsorption heads 302 arranged in an array along the horizontal direction. The negative pressure adsorption head 302 also includes a plurality of adsorption nozzles 3021 arranged in an array along the horizontal direction. The array direction of the adsorption nozzles 3021 is perpendicular to the array direction of the negative pressure adsorption head 302.

[0035] The bottom of the suction nozzle 3021 is provided with a negative pressure suction hole 3022, preferably, multiple negative pressure suction holes 3022 are provided.

[0036] In this case, the robotic arm 301 pulls the adsorption unit to move in a three-dimensional coordinate system, and the negative pressure adsorption hole 3022 realizes the negative pressure adsorption of the mobile phone volume button. The two work together to pull the mobile phone volume button in the carrier tray to the jig tray. With a slight press, the button can be clamped and set in the jig tray. It should be noted that the jig tray clamping the button is a technology that can be achieved by existing technology, and will not be described in detail. The negative pressure adsorption technology is also a technology that can be achieved by existing technology, and the connection of its negative pressure pipeline will not be described in detail.

[0037] The two feeding components are named feeding component a and feeding component b, respectively.

[0038] In this case, a loading component a pulls a tray fully loaded with mobile phone volume buttons onto a conveyor belt one by one, while a loading component b pulls an empty jig tray onto the conveyor belt one by one. During the movement of the trays and jig trays by the conveyor belt, a robotic arm and a negative pressure suction head work together to transfer the mobile phone volume buttons from the trays to the jig trays. After the transfer is completed, the empty trays are stacked in an orderly manner, and the full jig trays are also stacked in an orderly manner. The entire process is fully automated, which not only greatly improves the transfer efficiency but also facilitates the storage or transfer of trays and jig trays.

[0039] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A feeding device, comprising a frame assembly (100), wherein a feeding component (200) and a traction component (300) are disposed on the frame assembly (100), characterized in that, There are two feeding assemblies (200) arranged side by side, and the traction assembly (300) is located between the two feeding assemblies (200); The loading assembly (200) includes a full-load position and an empty position. One loading assembly (200) stores a carrier tray and is used to pull the carrier tray from the full-load position to the empty position. The carrier tray is used to store the mobile phone volume buttons. The other loading assembly (200) stores a jig tray and is used to pull the jig tray from the empty position to the full-load position. The jig tray is used to receive the mobile phone volume buttons and clamp them. During the operation of the two loading assemblies (200), the mobile phone volume buttons on the carrier tray are pulled to the jig tray by the traction assembly (300). The full-load position and empty position of the feeding assembly (200) can stack and store several trays or jig trays in the vertical direction.

2. The feeding device according to claim 1, characterized in that, The feeding assembly (200) includes a conveyor belt (201), the conveying direction of the conveyor belt (201) is arranged horizontally, and there are two conveyor belts (201) along their own width direction. The two feeding assemblies (200) are distributed along the width direction of the conveyor belt (201). The two sides of the carrier or jig can be supported by two conveyor belts (201) respectively, and move under the traction of the conveyor belts (201); Each end of the conveyor belt (201) is provided with a storage component (202), which is used to stack and store the carrier tray or jig tray in the vertical direction.

3. The feeding device according to claim 2, characterized in that, The storage component (202) includes an L-shaped column (203). There are four L-shaped columns (203), and the four L-shaped columns (203) together form a rectangular storage area. The shapes of the storage areas of the two feeding components (200) are respectively matched with the shapes of the carrier tray and the jig tray. A lifting unit (205) is provided below the storage area, and a support unit (206) is provided on both sides of the storage area.

4. The feeding device according to claim 3, characterized in that, The bottom of the two L-shaped columns (203) near the conveyor belt (201) is provided with inlet and outlet gaps (204), and the two conveyor belts (201) pass through the two inlet and outlet gaps (204) respectively.

5. The feeding device according to claim 3, characterized in that, The lifting unit (205) includes a horizontally arranged lifting seat (2051) located directly below the storage area. The lifting seat (2051) is capable of moving in a vertical direction. The lifting unit (205) also includes a first linear module (2054) for driving the lifting seat (2051) to move in a vertical direction.

6. The feeding device according to claim 5, characterized in that, The lower surface of the lifting seat (2051) is provided with a vertically arranged guide rod (2052), and the frame assembly (100) is provided with a vertically arranged guide sleeve (2053), and the guide rod (2052) is movably sleeved in the guide sleeve (2053).

7. A feeding device according to claim 6, characterized in that, Four guide rods (2052) are provided, each located near one of the four right angles of the lifting seat (2051), and four guide sleeves (2053) are provided accordingly.

8. A feeding device according to claim 5, characterized in that, The support unit (206) includes a movable seat (2062) that is slidably mounted on the rack assembly (100) in the horizontal direction and located on one side of the storage area, and a second linear module (2061) for driving the movable seat (2062) to move. The movable seat (2062) is provided with a support plate (2063) on the side facing the storage area.

9. A feeding device according to claim 1, characterized in that, The traction assembly (300) includes a manipulator (301) and an adsorption unit disposed at the end of the manipulator (301). The negative pressure adsorption head (302) includes a plurality of negative pressure adsorption heads (302) arranged in an array along the horizontal direction. The negative pressure adsorption head (302) includes a plurality of adsorption nozzles (3021) arranged in an array along the horizontal direction. The array direction of the adsorption nozzles (3021) is perpendicular to the array direction of the negative pressure adsorption head (302). The bottom of the adsorption nozzles (3021) is provided with a plurality of negative pressure adsorption holes (3022).

10. A feeding device according to claim 8, characterized in that, The process by which the storage unit (202) pulls the trays in the storage area one by one onto the conveyor belt (201) includes the following steps: A1: The carrier is supported by the lifting seat (2051). The lifting seat (2051) is driven to move upward by the first linear module (2054), so that the lower surface of the second carrier is flush with the upper surface of the supporting plate (2063) from bottom to top. A2: The second linear module (2061) drives the movable seat (2062) and the support plate (2063) to approach the storage area, so that the support plate (2063) is inserted into the area between the first and second trays from bottom to top, and supports the other trays except the bottom tray through the support plate (2063). A3: The first linear module (2054) drives the lifting seat (2051) to move down, so that the two sides of the bottom tray are supported by two conveyor belts (201) respectively; A4: The pallet is pulled away by the conveyor belt (201), and the lifting seat (2051) is driven to move upward by the first linear module (2054). The lifting seat (2051) re-contacts the lowest pallet in the storage area. The movable seat (2062) and the supporting plate (2063) are driven away from the storage area by the second linear module (2061). The pallet in the storage area is supported by the lifting seat (2051) again. By repeating A1-A4, the trays in the storage area can be pulled onto the conveyor belt (201) one by one; The process of stacking the carrier trays in the storage area of ​​the storage component (202) includes the following steps: B1: The conveyor belt (201) traction tray is located directly above the lifting seat (2051); B2: The lifting seat (2051) is driven to move upward by the first linear module (2054), and the carrier is supported by the lifting seat (2051); The lifting seat (2051) continues to move upward, so that the lower surface of the carrier plate is flush with the upper surface of the support plate (2063); B3: The second linear module (2061) drives the movable seat (2062) and the support plate (2063) to approach the storage area, and the support plate (2063) provides support for the tray. B4: The first linear module (2054) drives the lifting seat (2051) to move down, and the next pallet is pulled by the conveyor belt (201) to be directly above the lifting seat (2051); B5: The first linear module (2054) drives the lifting seat (2051) to move upward, and the pallet on the lifting seat (2051) approaches or contacts the pallet on the support plate (2063). Then, the second linear module (2061) drives the movable seat (2062) and the support plate (2063) away from the storage area, and all pallets are supported by the lifting seat (2051). B6: The lifting seat (2051) continues to move upward, so that the lower surface of the bottom tray is flush with the upper surface of the support plate (2063); B7: The second linear module (2061) drives the movable seat (2062) and the supporting plate (2063) to approach the storage area. The supporting plate (2063) again supports all the pallets, while the lifting seat (2051) moves down and the next pallet is pulled by the conveyor belt (201) to the top of the lifting seat (2051). Repeat steps B5-B7 to stack the pallets in the storage area.

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