CN113247635B

CN113247635B - Charging tray feeding device and charging method

Info

Publication number: CN113247635B
Application number: CN202110666180.7A
Authority: CN
Inventors: 孔晨晖; 曹葵康; 蔡雄飞; 魏小寅; 周明
Original assignee: Tztek Technology Co Ltd
Current assignee: Tztek Technology Co Ltd
Priority date: 2021-06-16
Filing date: 2021-06-16
Publication date: 2021-10-26
Anticipated expiration: 2041-06-16
Also published as: CN113247635A

Abstract

The invention provides a charging tray feeding device and a charging method, and the charging tray feeding device comprises a feeding device body, wherein the feeding device body comprises a first base station, a charging tray area, an empty tray area, a first transmission module and a second transmission module, the feeding device utilizes a first clamping component to stack a plurality of charging trays filled with materials on a second base station, the bottommost charging tray falls down through the cooperation of the first clamping component and a first lifting component, and the charging tray is transmitted to a charging tray working area through the first transmission component. After the material parts on the material tray are taken out, the empty tray returns to the second base station under the action of the first transmission assembly, the empty tray is transmitted to an empty tray area by using the second transmission module, and the empty tray is stacked on the third base station by using the same principle, namely the cooperation of the second clamping assembly and the second lifting assembly in the empty tray area; this loading attachment reduces the number of times of material loading and the number of times of empty tray unloading, avoids frequent material loading, improves charging tray material loading efficiency.

Description

Charging tray feeding device and charging method

Technical Field

The invention relates to the field of semiconductor assembly, in particular to a charging tray feeding device and a charging method.

Background

In the field of semiconductor assembly, because the volume of a semiconductor is small, a plurality of electronic elements are generally required to be placed on a material tray in the feeding process, and the electronic elements are intensively fed by feeding the material tray. How to efficiently retrieve an empty tray when the electronic components in the tray are used up is an urgent problem to be solved.

Disclosure of Invention

In view of the above, the present invention provides a tray loading apparatus, which utilizes a first transmission module to transmit a tray to a tray working area, and utilizes a second transmission module to transmit an empty tray to the empty tray area for stacking after a material on the tray is used up, so as to solve the above technical problems.

In order to solve the technical problems, the invention adopts the following technical scheme:

on one hand, the charging tray feeding device comprises a feeding device body, wherein the feeding device body comprises:

a first base station;

the material tray area comprises a first clamping component, a second base station and a first lifting component, the second base station is fixedly connected with the first base station, a plurality of first clamping components are installed on the second base station, a plurality of material trays filled with materials are stacked on the second base station under the action of the first clamping components, and the material trays are driven by the first lifting component to move up and down;

the first transmission module is fixedly arranged on the first base, and one material tray reciprocates in the horizontal direction under the action of the first transmission module so as to move between the material tray area and the material tray working area;

the empty tray area comprises a second clamping component, a third base station and a second lifting component, the third base station is fixedly connected with the second base station and is positioned on the same horizontal plane, the second lifting component is fixedly installed on the first base station, the second clamping component is used for supporting or separating the empty tray, and the empty tray is formed after the material parts on the material tray are taken out;

the second transmission module is fixedly arranged on the second base platform, the empty trays move from the second base platform to the third base platform under the action of the second transmission module, and the empty trays are stacked on the third base platform under the cooperation of the second lifting component and the second clamping component.

Preferably, the first transmission module comprises a first driving assembly, a first slide rail and a first slide block, the first slide block is connected with the first slide rail in a sliding manner, the first slide rail and the first driving assembly are fixedly mounted on the first base platform, the first lifting assembly is fixedly connected with the first slide block, and the first lifting assembly moves back and forth along the first slide rail along with the first slide block under the driving force of the first driving assembly.

Preferably, the second transmission module comprises a second driving assembly, a second slide rail and a second slide block, the second slide block is connected with the second slide rail in a sliding manner, the second slide rail and the second driving assembly are fixedly mounted on the second base, and the second slide block abuts against the empty tray under the driving force of the second driving assembly, so that the empty tray moves from the material tray area to the empty tray area.

Preferably, a bump is fixedly mounted on the second slider, a first groove matched with the bump is formed in the empty tray, and the bump abuts against the first groove under the driving force of the second driving assembly, so that the empty tray moves along the direction of the second slide rail.

Preferably, a plurality of second grooves are formed in the tray, and the positions of the second grooves correspond to the positions of the first clamping components on the second base.

Preferably, first screens subassembly or second screens subassembly include bearing head and third drive assembly, the one end of bearing head with third drive assembly fixed connection, the bearing head is in bearing or breaking away from under third drive assembly's the drive power the second recess of charging tray.

Preferably, the loading attachment body still includes a plurality of limiting plates, limiting plate fixed mounting in on second base station and the third base station, a plurality of the inner wall of limiting plate is close the edge of charging tray or empty dish.

Preferably, the first lifting assembly comprises a fourth driving assembly, a first lifting plate and a first lifting rod, the first lifting plate is fixedly connected with the top end of the first lifting rod, and the first lifting plate reciprocates in the vertical direction under the driving force of the fourth driving assembly.

Preferably, the panel area further comprises a fourth base platform, the fourth base platform is fixedly connected with the first sliding block, and the fourth base platform is located between the second base platform and the first lifting plate;

a hollow area is arranged on the fourth base station, the hollow area is matched with the first lifting plate, and the first lifting plate passes through the hollow area to reciprocate under the driving of the fourth driving component;

the first transmission module further comprises a third slide rail and a third slide block, the third slide block is connected with the third slide rail in a sliding mode, the third slide block is fixedly connected with the fourth base station, and the third slide rail is parallel to the first slide rail.

On the other hand, the invention also provides a charging tray feeding method, which comprises the following steps:

the first clamping assembly is separated from the material trays, and the stacked material trays fall on the first lifting assembly;

after the material tray falls on the first lifting component, the first clamping component supports the material tray, wherein the distance between the first lifting component and the material tray is the thickness of the material tray;

the material tray moves to the material tray working area under the action of the first transmission module;

after the material parts on the material tray are taken out, the empty tray moves to an empty tray area under the action of the first transmission module and the second transmission module;

the second clamping component is separated from the empty tray, the empty tray moves upwards under the action of the second lifting component, the second clamping component holds the empty tray, so that the empty trays are stacked on the third base station, and the distance of the upward movement of the second lifting component is the thickness of the empty tray.

The technical scheme of the invention at least has one of the following beneficial effects:

the invention discloses a charging tray feeding device and a charging method, wherein the device utilizes a first clamping component to stack a plurality of charging trays filled with materials on a second base station, and the bottommost charging tray falls down through the cooperation of the first clamping component and a first lifting component and moves to a charging tray working area under the action of a first transmission module; after the material parts on the material tray are taken out, the empty tray is conveyed to a third base station by using a second conveying module, and the empty tray is stacked on the third base station through the matching of a second clamping component and a second lifting component; the feeding device realizes automatic feeding of the material tray and automatic storage of the empty tray, and improves the feeding efficiency of the material tray; in addition, the mode of stacking and placing the material tray and the empty tray reduces the temporary space of the feeding device, and improves the space utilization rate.

Drawings

FIG. 1 is a top view of the overall structure of an embodiment of the present invention;

FIG. 2 is a schematic overall perspective view of an embodiment of the present invention;

FIG. 3 is a schematic view of stacked trays in an embodiment of the invention;

FIG. 4 is a schematic view of the first or second detent assembly in an embodiment of the present invention;

FIG. 5 is an enlarged view at B in FIG. 4;

FIG. 6 is a schematic structural diagram of a tray area in an embodiment of the invention;

FIG. 7 is a side view of FIG. 6;

FIG. 8 is a side view of an overall structure in an embodiment of the invention;

FIG. 9 is a schematic view of another angle of the overall structure in an embodiment of the present invention;

fig. 10 is an enlarged view of fig. 9 at a.

Reference numerals:

1. a feeding device body; 10. a first base station; 11. a panel area; 110. a second base station; 111. a first clamping component; 112. a first lifting assembly; 1121. a first lifter plate; 1122. a fourth drive assembly; 1123. a first lifting rod; 113. a fourth base station; 1131. a third clamping component; 12. an empty disc area; 120. a third base station; 121. a second detent assembly; 1211. a support head; 1212. a third drive assembly; 122. a second lifting assembly; 1221. a second lifter plate; 1222. a fifth drive assembly; 1223. a second lifting rod; 13. a tray work area; 14. a first transmission module; 141. a first drive assembly; 142. a first slider; 143. a third slider; 144. a third slide rail; 15. a second transmission module; 151. a second slider; 1511. a push block; 1512. a bump; 152. a second drive assembly; 16. a limiting plate; 2. a material tray; 210. a first groove; 220. a second groove.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention, are within the scope of the invention.

The embodiment of the invention provides a charging tray feeding device, which uses a first clamping component 111 to stack a plurality of charging trays filled with materials on a second base table 110, and uses the first clamping component 111 and a first lifting component 112 to match with each other to enable the bottommost charging tray 2 to fall down, and uses a first transmission component to transmit the charging tray 2 to a charging tray working area 13. After the material on the material tray is taken out, the empty tray returns to the second base station 110 under the action of the first transmission module, the empty tray is transmitted to the empty tray area 12 by using the second transmission module 15, and the empty tray is stacked on the third base station 120 in the empty tray area 12 by using the same principle, namely the cooperation of the second clamping module 121 and the second lifting module 122; this loading attachment reduces the number of times of material loading and the number of times of empty tray unloading, avoids frequent material loading, improves charging tray material loading efficiency.

Specifically, as shown in fig. 1 to 10, the tray loading device according to the embodiment of the invention includes a loading device body 1, the loading device body 1 includes a first base 10, a tray area 11, a first transfer module 14, an empty tray area 12, and a second transfer module 15, wherein,

the tray area 11 comprises a first clamping component 111, a second base 110 and a first lifting component 112, the second base 110 is fixedly connected with the first base 10, the plurality of first clamping components 111 are mounted on the second base 110, a plurality of trays 2 filled with the materials are stacked on the second base 110 under the action of the plurality of first clamping components 111, and the trays 2 are driven by the first lifting component 112 to move up and down. As shown in fig. 3, a plurality of material trays 2 filled with material pieces are stacked, and material holes (not shown) are formed on the material trays 2, and the material pieces are located in the material holes. The first clamping components 111 hold the tray 2 at the bottom so that the stacked trays are located on the second base 110. The cooperation of the first lifting assembly 112 and the first blocking assembly 111 can make the bottommost tray 2 fall down.

The first transferring module 14 is fixedly installed on the first base 10, and a dropped tray reciprocates in the horizontal direction under the action of the first transferring module 14. The first transmission module 14 is preferably a linear motor module, but is not limited to a linear motor module. The first transfer module 14 is used for transferring a tray between the tray area 11 and the tray working area 13, that is, transferring the tray 2 to the tray working area 13, and transferring the empty tray back to the tray area 11.

The empty tray area 12 comprises a second clamping component 121, a third base 120 and a second lifting component 122, the third base 120 is fixedly connected with the second base 110 and is located on the same horizontal plane, the second lifting component 122 is fixedly installed on the first base 10, the second clamping component 121 is used for supporting or separating the empty tray, and the empty tray is formed after the material parts on the material tray 2 are taken out. The second transmission module 15 is fixedly installed on the second base platform 110, the empty tray moves from the second base platform 110 to the third base platform 120 under the action of the second transmission module 15, and the empty trays are stacked on the third base platform 120 under the cooperation of the second lifting component 122 and the second clamping component 121.

In an embodiment, the first transmission module 14 includes a first driving assembly 141, a first slide rail and a first slider 142, the first slider 142 is slidably connected to the first slide rail, the first slide rail and the first driving assembly 141 are fixedly mounted on the first base 10, the first lifting assembly 112 is fixedly connected to the first slider 142, and the first lifting assembly 112 reciprocates along the first slide rail direction along with the first slider 142 under the driving force of the first driving assembly 141. The two ends of the first slide rail are respectively located in the tray area 11 and the tray working area 13, that is, the first transmission module 14 is used for transmitting the trays in the tray area 11 and the tray working area 13.

As shown in fig. 8, the first lifting assembly 112 includes a fourth driving assembly 1122, a first lifting plate 1121 and a first lifting rod 1123, the first lifting plate 1121 is fixedly connected to a top end of the first lifting rod 1123, and the first lifting plate 1121 reciprocates in a vertical direction under a driving force of the fourth driving assembly 1122. The second lifting assembly 122 and the first lifting assembly 112 have the same structure and principle, the second lifting assembly 122 includes a fifth driving assembly 1222, a second lifting plate 1221 and a second lifting rod 1223, the second lifting plate 1221 is fixedly connected to the top end of the second lifting rod 1223, and the second lifting plate 1221 reciprocates in the vertical direction under the driving force of the fifth driving assembly 1222. The first lifting assembly 112 and the second lifting assembly 122 are preferably screw modules, but are not limited to screw modules.

In an embodiment, as shown in fig. 4 and 5, a plurality of second grooves 220 are formed on the tray 2, and the positions of the second grooves 220 correspond to the positions of the first locking components 111 on the second base 110.

Further, the first or

second positioning element

111, 121 includes a support head 1211 and a third driving element 1212, one end of the support head 1211 is fixedly connected to the third driving element 1212, and the support head 1211 supports or separates from the second groove 220 of the tray under the driving force of the third driving element 1212. The third drive assembly 1212 is preferably, but not limited to, a pneumatic cylinder drive. The shape of the bearing head 1211 is matched with the cavity of the second groove 220, the plurality of first clamping components 111 are arranged at different positions of the second base table 110, and the bearing head 1211 is inserted into the second groove 220 to support the tray; of course, when it is desired to lower the tray onto the first lifting assembly 112, the support head 1211 is moved away from the tray.

In an embodiment, as shown in fig. 6 and 7, the panel area 11 further includes a fourth base 113, the fourth base 113 is fixedly connected to the first slider 142, and the fourth base 113 is located between the second base 110 and the first lifting plate 1121; a hollow area (not shown) is disposed on the fourth base platform 113, the hollow area is matched with the first lifting plate 1121, and the first lifting plate 1121 is driven by the fourth driving component 1122 to reciprocate through the hollow area; the first transmission module 14 further includes a third slide rail 144 and a third slide block 143, the third slide block 143 is slidably connected to the third slide rail 144, the third slide block 143 is fixedly connected to the fourth base 113, and the third slide rail 144 is parallel to the first slide rail. The first lifting assembly 112 moves to a position below the second base 110, the first lifting plate 1121 moves upward under the driving force of the fourth driving assembly 1122 and passes through the hollow area of the fourth base 113, the first blocking assembly 111 is away from the material tray, the material tray falls on the first lifting plate 1121, and the first lifting plate 1121 moves downward under the driving force of the fourth driving assembly 1122 and enables the material tray to fall on the fourth base 113.

The third slider 143 is fixedly connected to one end of the fourth base 113, the first slider 142 is fixedly connected to the other end of the fourth base 113, and under the driving force of the first driving assembly 141, the fourth base 113 moves between the tray area 11 and the tray working area 13 along the third slide rail 144 along with the first slider 142 and the third slider 143.

The third clamping component 1131 is fixedly mounted on the fourth base 113, and the third clamping component 1131 is the same as the second clamping component 121 and the first clamping component 111 in structure and principle, and is used for fixing the tray on the base or separating the tray from the base.

In an embodiment, as shown in fig. 2, the second transmission module 15 includes a second driving assembly 152, a second slide rail, and a second slider 151, the second slider 151 is slidably connected to the second slide rail, the second slide rail and the second driving assembly 152 are fixedly mounted on the second base 110, and the second slider 151 abuts against the empty tray under the driving force of the second driving assembly 152, and moves the empty tray from the tray area 11 to the empty tray area 12. The second transmission module is preferably a linear motor module, but is not limited to a linear motor module.

Further, as shown in fig. 9 and 10, a bump 1512 is fixedly mounted on the second slider 151, a first groove 210 matched with the bump 1512 is disposed on the empty tray, and the bump 1512 abuts against the first groove 210 under the driving force of the second driving assembly 152, so that the empty tray moves along the second sliding rail direction. The second sliding block 151 extends to form a push block 1511, but the push block 1511 may be fixedly mounted on the second sliding block 151, which is not limited herein. The bumps 1512 on the push block 1511 match the first grooves 210, and the number of the bumps 1512 is set according to the size and the quality of the tray, and is not limited herein.

Specifically, a fifth base is installed between the second lifting assembly 122 and the third base 120 in the empty tray area 12, the fifth base is fixedly connected to the first base 10, and the fifth base is similar to the fourth base 113 in structure, except that the fifth base is stationary, and the fourth base 113 needs to move along with the first sliding block 142. The fifth base and the fourth base 113 are located on the same horizontal plane, and the push block 1511 formed by extending the second slider 151 pushes the empty tray from the fourth base 113 to the fifth base, that is, the empty tray is transferred from the tray area 11 to the empty tray area 12.

In an embodiment, as shown in fig. 2, the loading device body 1 further includes a plurality of limiting plates 16, the limiting plates 16 are fixedly mounted on the second base 110 and the third base 120, and inner walls of the plurality of limiting plates 16 are close to edges of the tray or the empty tray. A plurality of charging trays or empty dish are piled up and are placed, utilize limiting plate 16 to inject the charging tray in certain space range, avoid more charging tray to take place to empty.

The invention also provides a charging tray feeding method, which comprises the following steps:

in the first step, the first blocking component 111 is separated from the material trays 2, and the stacked material trays 2 fall on the first lifting component 112. When the material tray 2 needs to be loaded, the first blocking component 111 is separated from the material tray, and the stacked material trays 2 fall on the first lifting plate 1121.

And secondly, after the material tray 2 falls on the first lifting component 112, the first clamping component 111 supports the material tray 2, wherein the distance between the first lifting component 112 and the material tray 2 is the thickness of the material tray. After the tray 2 is dropped on the first lifting plate 1121, the holding head 1211 is inserted into the second groove 220 to hold the tray 2, the tray 2 is the second last tray among the stacked trays, and the stacked trays 2 in the first step move downward by a distance of one tray thickness.

And thirdly, the material tray 2 moves to the material tray working area 13 under the action of the first transmission module 14. After the tray 2 in the first step falls on the first lifting plate 1121 and after confirming that the first blocking member 111 in the second step holds the tray, the tray 2 moves downward under the action of the first lifting member 112, and the tray falls on the fourth base 113 while the first lifting member 112 continues to move downward to be away from the fourth base 113. The fourth base 113 moves the tray on the fourth base 113 and the fourth base 113 to the tray working area 13 under the action of the first transmission module 14.

And fourthly, after the material parts on the material tray are taken out, the empty tray moves to the empty tray area 12 under the action of the first transmission module 14 and the second transmission module 15. After the material on the tray is taken out, the fourth base 113 returns to the lower part of the second base 110 under the action of the first transmission module 14, and the empty tray moves from the tray area 11 to the empty tray area 12 under the action of the second transmission module 15.

And fifthly, the second clamping component 121 is separated from the empty tray, the empty tray moves upwards under the action of the second lifting component 122, the second clamping component 121 supports the empty tray, so that the empty trays are stacked on the third base platform 120, wherein the distance of the upward movement of the second lifting component 122 is the thickness of the empty tray. The principle of this step is the same as that of the second step, and after the empty tray moves to the empty tray area 12, the second lifting member 122 moves upward to jack up and move upward the empty tray, and is supported at the bottom of the empty tray, which is the lowest one of the stacked empty trays, by the second blocking member 121. After confirming that the empty tray is dragged by the second catching assembly 121, the second lifting assembly 122 moves down to the original position, completing the stacking of the empty tray.

While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. The utility model provides a charging tray loading attachment which characterized in that, includes loading attachment body (1), loading attachment body (1) includes:

a first base (10);

the material tray area (11) comprises a first clamping component (111), a second base table (110) and a first lifting component (112), the second base table (110) is fixedly connected with the first base table (10), the first clamping components (111) are installed on the second base table (110), a plurality of material trays (2) filled with materials are stacked on the second base table (110) under the action of the first clamping components (111), and the material trays (2) are driven by the first lifting component (112) to move up and down;

the first transmission module (14) is fixedly arranged on the first base platform (10), and one material tray (2) reciprocates in the horizontal direction under the action of the first transmission module (14) so that the material tray (2) moves between the material tray area (11) and the material tray working area (13);

the blank disc area (12), the blank disc area (12) includes a second clamping component (121), a third base (120) and a second lifting component (122), the third base (120) and the second base (110) are fixedly connected and located on the same horizontal plane, the second lifting component (122) is fixedly installed on the first base (10), the second clamping component (121) is used for supporting or separating from the blank disc, and the blank disc is formed after the material parts on the material disc (2) are taken out;

the second transmission module (15), the second transmission module (15) is fixedly installed on the second base (110), the empty tray moves from the second base (110) to the third base (120) under the action of the second transmission module (15), and a plurality of empty trays are stacked on the third base (120) under the cooperation of the second lifting component (122) and the second clamping component (121); wherein the content of the first and second substances,

the first transmission module (14) comprises a first driving assembly (141), a first slide rail and a first slide block (142), the first slide block (142) is connected with the first slide rail in a sliding mode, the first slide rail and the first driving assembly (141) are fixedly installed on the first base platform (10), the first lifting assembly (112) is fixedly connected with the first slide block (142), and the first lifting assembly (112) moves back and forth along the first slide rail direction along with the first slide block (142) under the driving force of the first driving assembly (141);

the first lifting assembly (112) comprises a fourth driving assembly (1122), a first lifting plate (1121) and a first lifting rod (1123), the first lifting plate (1121) is fixedly connected with the top end of the first lifting rod (1123), and the first lifting plate (1121) reciprocates along the vertical direction under the driving force of the fourth driving assembly (1122);

the material disc area (11) further comprises a fourth base (113), the fourth base (113) is fixedly connected with the first sliding block (142), and the fourth base (113) is located between the second base (110) and the first lifting plate (1121);

a hollow-out area is arranged on the fourth base station (113), the hollow-out area is matched with the first lifting plate (1121), and the first lifting plate (1121) is driven by the fourth driving component (1122) to pass through the hollow-out area to reciprocate;

the first transmission module (14) further comprises a third slide rail (144) and a third slide block (143), the third slide block (143) is connected with the third slide rail (144) in a sliding mode, the third slide block (143) is fixedly connected with the fourth base station (113), and the third slide rail (144) is parallel to the first slide rail.

2. The tray loading device according to claim 1, wherein the second transport module (15) comprises a second driving assembly (152), a second slide rail and a second slider (151), the second slider (151) is slidably connected with the second slide rail, the second slide rail and the second driving assembly (152) are fixedly mounted on the second base (110), and the second slider (151) abuts against the empty tray under the driving force of the second driving assembly (152) and enables the empty tray to move from the tray area (11) to the empty tray area (12).

3. The tray feeding device according to claim 2, wherein a bump (1512) is fixedly mounted on the second slider (151), a first groove (210) matched with the bump (1512) is formed in the empty tray, and the bump (1512) abuts against the first groove (210) under the driving force of the second driving assembly (152) so that the empty tray moves along the direction of the second sliding rail.

4. A tray loading device according to claim 1, wherein a plurality of second grooves (220) are provided on the tray (2), and the positions of the second grooves (220) correspond to the positions of the first blocking components (111) on the second base (110).

5. The tray loading device according to claim 4, characterized in that the first blocking assembly (111) or the second blocking assembly (121) comprises a support head (1211) and a third driving assembly (1212), one end of the support head (1211) is fixedly connected with the third driving assembly (1212), and the support head (1211) supports or separates from the second groove (220) of the tray (2) under the driving force of the third driving assembly (1212).

6. The tray loading device according to claim 1, wherein the loading device body (1) further comprises a plurality of limiting plates (16), the limiting plates (16) are fixedly mounted on the second base (110) and the third base (120), and the inner walls of the plurality of limiting plates (16) are close to the edge of the tray (2) or the empty tray.

7. A tray loading method for a tray loading device according to claim 1, comprising:

the first clamping component (111) is separated from the material trays, and the stacked material trays (2) fall on the first lifting component (112);

after the material tray (2) falls on the first lifting component (112), the first clamping component (111) supports the material tray, wherein the distance between the first lifting component (112) and the material tray (2) is the thickness of the material tray;

the material tray (2) moves to a material tray working area (13) under the action of a first transmission module (14);

after the material on the material tray (2) is taken out, the empty tray moves to the empty tray area (12) under the action of the first transmission module (14) and the second transmission module (15);

the second clamping component (121) is separated from the empty tray, the empty tray moves upwards under the action of the second lifting component (122), the second clamping component (121) bears the empty tray so that a plurality of empty trays are stacked on the third base (120), and the distance for the second lifting component (122) to move upwards is the thickness of the empty tray.