Automated loading and unloading device for laser etching equipment of photovoltaic solar cell glass substrate

Abstract

This utility model relates to the field of laser etching technology, and discloses an automated loading and unloading device for laser etching equipment of photovoltaic solar cell glass substrates. It includes a symmetrically arranged etching machine loading system and an etching machine unloading system, both with identical structures. A laser etching machine body and a transfer linear module are installed between the two systems. The etching machine loading system includes a material rack assembly, a material cage, a material picking robot assembly, and a flipping actuator. The material cage is mounted on the material rack assembly and has several adjustable-width slot assemblies for vertically placing the glass substrate. The flipping actuator is installed at the moving end of the transfer linear module, and the material picking robot assembly is installed at the output end of the flipping actuator. This utility model enables automated loading and unloading of glass substrates, operates smoothly, and effectively improves work efficiency and material yield.

Description

Technical Field

[0001] This utility model relates to the field of laser etching technology, and in particular to an automated loading and unloading device for laser etching equipment of photovoltaic solar cell glass substrates. Background Technology

[0002] In the manufacturing of perovskite solar cells (PSCs), P1-P4 etching is the core process for forming electrical isolation between cell units, requiring precise scribing on a glass substrate (such as ITO / FTO conductive glass). The substrate size is generally ≥1.2m × 0.6m (mass production specifications), and the thickness can be as low as 0.1mm (flexible substrates), placing extremely high demands on the stability, cleanliness, and precision of automated transport.

[0003] The loading and unloading devices of existing laser etching equipment have significant technical bottlenecks: First, the degree of automation is insufficient. Most solutions rely on manual unloading or transfer of trays. Although automatic loading is achieved, manual intervention is still required for material collection, which leads to a longer production cycle. Second, the compatibility between large-size and thin substrates is poor. The vacuum suction cup of the robotic arm has uneven adsorption force on the substrate, which makes it easy to bend. Small-size flexible substrates are easy to break under the vibration of the conveyor belt. Contact gripping (such as sponge roller coating) is prone to leaving particles, which leads to uneven etching line width in the subsequent process, limiting work efficiency and material yield.

[0004] To address this, an automated loading and unloading device for laser etching equipment of photovoltaic solar cell glass substrates is proposed. Utility Model Content

[0005] The purpose of this invention is to provide an automated loading and unloading device for laser etching equipment of photovoltaic solar cell glass substrates, which aims to solve or improve at least one of the above-mentioned technical problems.

[0006] To achieve the above objectives, the present invention provides the following solution: The present invention provides an automated loading and unloading device for a laser etching equipment for photovoltaic solar cell glass substrates, comprising a symmetrically arranged etching machine loading system and an etching machine unloading system, wherein the etching machine loading system and the etching machine unloading system have the same structure, and a laser etching machine body and a transfer linear module are installed between the etching machine loading system and the etching machine unloading system; The etching machine feeding system includes a material rack assembly, a material cage, a material picking robot assembly, and a flipping actuator; the material cage is installed on the material rack assembly, and the material cage has several adjustable-width slot assemblies for vertically placing glass substrates; The flipping actuator is installed at the moving end of the transfer linear module; the material handling robot assembly is installed at the output end of the flipping actuator, and the material handling robot assembly is used to grab the glass substrate in the material cage.

[0007] According to the automated loading and unloading device for laser etching equipment of photovoltaic solar cell glass substrate provided by this utility model, the material handling robot assembly is provided in two sets, and the material handling robot assembly includes: Two rotating spindle connecting blocks are provided, and the two rotating spindle connecting blocks are installed side by side at intervals at the output end of the flipping actuator. A flip support plate is fixedly installed on the two rotating spindle connecting blocks, and a sliding groove is provided on the flip support plate; A telescopic cylinder, which is mounted on the flip support plate via a cylinder mounting plate; A vacuum suction cup assembly is slidably connected to the flip support plate, slidably connected to the slide groove, and fixedly connected to the piston end of the telescopic cylinder.

[0008] According to the automated loading and unloading device for laser etching equipment of photovoltaic solar cell glass substrate provided by this utility model, the vacuum chuck assembly includes a chuck fixing slide plate, a material picking vacuum chuck and a linear guide rail assembly; a plurality of material picking vacuum chucks are provided, and the plurality of material picking vacuum chucks are spaced apart on the chuck fixing slide plate. The linear guide rail assembly is mounted on the flip support plate, the suction cup fixing slide plate is slidably connected to the linear guide rail assembly, and the suction cup fixing slide plate is slidably connected to the slide groove. The suction cup fixing slide plate is fixedly connected to the piston end of the telescopic cylinder.

[0009] According to the automated loading and unloading device for laser etching equipment of photovoltaic solar cell glass substrate provided by this utility model, two sets of transfer linear modules are arranged side by side. The flipping execution mechanism includes a drive component and a transfer bearing mounting block. The drive component and the transfer bearing mounting block are respectively installed on the moving ends of the two sets of transfer linear modules. A rotating spindle is installed at the output end of the drive component. The rotating spindle is rotatably connected to the transfer bearing mounting block. Four rotating spindle connecting blocks are all fixedly installed on the rotating spindle.

[0010] According to the automated loading and unloading device for laser etching equipment of photovoltaic solar cell glass substrate provided by this utility model, the driving component includes a motor mounting bracket, which is installed on the moving end of the transfer linear module. A rotary motor is installed on the motor mounting bracket, and a drive gear is installed on the output shaft of the rotary motor. The end of the rotary spindle away from the transfer bearing mounting block is rotatably connected to the motor mounting bracket. A driven gear is fixedly installed on the rotary spindle, and the driven gear meshes with the drive gear for transmission.

[0011] According to the automated loading and unloading device for laser etching equipment of photovoltaic solar cell glass substrate provided by this utility model, the material cage includes a lower support plate installed on the material rack assembly, a left support plate and a right support plate are respectively installed on both sides of the top surface of the lower support plate, and a rear support plate is fixedly connected to one side of the left support plate and one side of the right support plate. The card slot assembly includes a plurality of left card slots and a plurality of right card slots. The plurality of left card slots are formed on the end face of the left support plate near the right support plate, and the plurality of right card slots are formed on the end face of the right support plate near the left support plate. The plurality of left card slots and the plurality of right card slots are arranged in a one-to-one correspondence. The glass substrate is vertically snapped between the left card slots and the right card slots. A left card slot width adjustment structure is installed in the left card slot, and a right card slot width adjustment structure is installed in the right card slot. Flexible buffer pads are installed on the inner walls of both the left card slots and the right card slots.

[0012] According to the automated loading and unloading device for the laser etching equipment of photovoltaic solar cell glass substrate provided by this utility model, the bottom of the two sets of transfer linear modules is equipped with a support frame.

[0013] According to the automated loading and unloading device for laser etching equipment of photovoltaic solar cell glass substrate provided by this utility model, the main body of the laser etching machine includes a worktable, a dual laser head system and a vision positioning system. A vacuum adsorption device is installed on the worktable. The dual laser head system is installed on two sets of the transfer linear modules. The vision positioning system is installed on the worktable for photographing the glass substrate.

[0014] According to the automated loading and unloading device for the laser etching equipment of photovoltaic solar cell glass substrate provided by this utility model, two sets of linear guide rail assemblies are arranged side by side.

[0015] The present invention discloses the following technical effects: The material cage of this utility model is provided with several adjustable width slot components, which can be adapted to glass substrates of different thicknesses. Through the limiting function of the slot structure, the glass substrate can achieve efficient and orderly alignment after the taking out and receiving actions are completed. In this utility model, the slot assembly is used to vertically place glass substrates. The vertical extraction and placement of glass substrates can effectively reduce the damage to the coating layer caused by friction between adjacent glass substrates or prevent the glass substrates from cracking and breaking due to the accumulated gravity load of stacked materials, thereby improving the yield of the materials to be processed. It is especially suitable for the laser etching process of photovoltaic solar glass substrates. This utility model integrates a flipping actuator and a material handling robot into one unit, which can minimize the structural complexity of feeding and receiving materials, thereby extending the maintenance cycle and service life of the mechanism, improving the reliability of the whole machine, realizing automated feeding and unloading of glass substrates, operating smoothly, and effectively improving work efficiency. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the etching machine feeding system in this utility model; Figure 3 This is a schematic diagram of the material cage in this utility model; Figure 4 This is a schematic diagram showing the installation of the material handling robot assembly and the flipping actuator in this utility model; Figure 5 This is a schematic diagram of the material handling robot assembly in this utility model. Figure I ; Figure 6 This is a schematic diagram of the material handling robot assembly in this utility model. Figure II ; Figure 7 This is a schematic diagram of the structure of the flipping actuator in this utility model.

[0018] The components include: 1. Etching machine feeding system; 2. Etching machine unloading system; 3. Laser etching machine body; 10. Material rack assembly; 20. Glass substrate; 30. Material cage; 301. Left support plate; 302. Right support plate; 303. Lower support plate; 304. Rear support plate; 305. Right slot width adjustment structure; 306. Left slot width adjustment structure; 40. Transfer linear module; 50. Material handling robot assembly; 501. Tilting support plate; 502. Telescopic cylinder; 503. Linear guide rail assembly; 504. Cylinder mounting plate; 505. Rotary spindle connecting block; 506. Material handling vacuum suction cup; 507. Suction cup fixing slide plate; 60. Tilting actuator; 601. Rotary motor; 602. Motor mounting bracket; 603. Drive gear; 604. Driven gear; 605. Rotary spindle; 606. Transfer bearing mounting block; 70. Support frame. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0021] Example 1

[0022] Reference Figures 1-7 This utility model provides an automated loading and unloading device for laser etching equipment of photovoltaic solar cell glass substrate, including an etching machine loading system 1 and an etching machine unloading system 2 symmetrically arranged. The etching machine loading system 1 and the etching machine unloading system 2 have the same structure. A laser etching machine body 3 and a transfer linear module 40 are installed between the etching machine loading system 1 and the etching machine unloading system 2. The transfer linear module 40 is driven by a linear motor. The etching machine feeding system 1 includes a material rack assembly 10, a material cage 30, a material picking robot assembly 50, and a flipping actuator 60; the material cage 30 is mounted on the material rack assembly 10, and the material cage 30 is provided with several adjustable-width slot assemblies, which are used to vertically place the glass substrate 20. The flipping actuator 60 is installed at the moving end of the transfer linear module 40; the picking robot assembly 50 is installed at the output end of the flipping actuator 60, and the picking robot assembly 50 is used to pick up the glass substrate 20 in the material cage 30. With this configuration, the material cage 30 of this utility model is provided with several adjustable-width slot components, which can be adapted to glass substrates 20 of different thicknesses. Through the limiting function of the slot structure, the glass substrates 20 can achieve efficient and orderly alignment after the take-out and take-up actions are completed. In this invention, the slot assembly is used to vertically place the glass substrate 20. The vertical extraction and placement of the glass substrate 20 can effectively reduce the damage to the coating layer caused by friction between adjacent glass substrates 20 or prevent the glass substrate 20 from cracking and breaking due to the accumulated gravity load of stacked materials, thereby improving the yield of the materials to be processed. It is especially suitable for the laser etching process of photovoltaic solar glass substrates; this device is also suitable for the laser etching process of graphite bipolar plates. This utility model integrates a flipping actuator 60 and a material handling robot assembly 50 into one unit, which can minimize the structural complexity of feeding and receiving materials, thereby extending the maintenance cycle and service life of the mechanism, improving the reliability of the whole machine, realizing the automated feeding and unloading of glass substrates 20, with stable operation and effectively improving work efficiency.

[0023] The design has been further optimized, with two sets of the material handling robot assembly 50. The material handling robot assembly 50 includes: Two rotary spindle connecting blocks 505 are provided, and the two rotary spindle connecting blocks 505 are installed side by side at intervals at the output end of the flipping actuator 60. A flip support plate 501 is fixedly installed on the two rotating spindle connecting blocks 505, and a sliding groove is provided on the flip support plate 501. Telescopic cylinder 502 is mounted on the tilting support plate 501 via cylinder mounting plate 504; The vacuum suction cup assembly is slidably connected to the flip support plate 501, the vacuum suction cup assembly is slidably connected to the slide groove, and the vacuum suction cup assembly is fixedly connected to the piston end of the telescopic cylinder 502.

[0024] The solution is further optimized. The vacuum suction cup assembly includes a suction cup fixing slide plate 507, a material picking vacuum suction cup 506, and a linear guide rail assembly 503. Several material picking vacuum suction cups 506 are provided, and several material picking vacuum suction cups 506 are installed at intervals on the suction cup fixing slide plate 507. The linear guide rail assembly 503 is mounted on the flip support plate 501. The suction cup fixing slide plate 507 is slidably connected to the linear guide rail assembly 503, and the suction cup fixing slide plate 507 is slidably connected to the slide groove. The suction cup fixing slide plate 507 is fixedly connected to the piston end of the telescopic cylinder 502. The material picking vacuum suction cup 506 adopts a contact-type adjustable negative pressure vacuum suction cup. When it is necessary to grasp the glass substrate 20, the telescopic cylinder 502 is activated, and the piston end pushes the vacuum suction cup assembly to slide along the groove of the flip support plate 501, bringing the vacuum suction cup assembly close to the glass substrate 20 in the material cage 30. After contacting the substrate, the glass substrate 20 is adsorbed by the picking vacuum suction cup 506, and the telescopic cylinder 502 retracts, causing the substrate to detach from the material cage 30. The linear guide rail assembly 503 is mounted on the flip support plate 501, and the suction cup fixing slide plate 507 is slidably connected to the linear guide rail assembly 503 to ensure the straightness and stability of the vacuum suction cup assembly during sliding, and to prevent the substrate from shifting or falling off due to shaking. Several picking vacuum suction cups 506 are spaced apart on the suction cup fixing slide plate 507, which can evenly distribute the adsorption force, adapt to large-size thin substrates, and prevent the substrate from bending and deforming during adsorption.

[0025] The scheme is further optimized. Two sets of transplanting linear modules 40 are arranged side by side. The flipping actuator 60 includes a drive component and a transplanting support mounting block 606. The drive component and the transplanting support mounting block 606 are respectively installed on the moving ends of the two sets of transplanting linear modules 40. A rotating spindle 605 is installed on the output end of the drive component. The rotating spindle 605 is rotatably connected to the transplanting support mounting block 606. Four rotating spindle connecting blocks 505 are all fixedly installed on the rotating spindle 605.

[0026] The scheme is further optimized. The drive component includes a motor mounting bracket 602, which is installed on the moving end of the transplanting linear module 40. A rotary motor 601 is mounted on the motor mounting bracket 602. A drive gear 603 is mounted on the output shaft of the rotary motor 601. The end of the rotary spindle 605 away from the transplanting support mounting block 606 is rotatably connected to the motor mounting bracket 602. A driven gear 604 is fixedly mounted on the rotary spindle 605. The driven gear 604 meshes with the drive gear 603 for transmission. When the substrate posture needs to be adjusted, the rotary motor 601 starts, and the rotary spindle 605 rotates through gear transmission, thereby driving the material handling robot assembly 50 and the adsorbed substrate to flip, precisely adapting to the posture requirements of the etching station and the material cage 30. The transfer linear module 40 drives the flipping actuator 60 and the material handling robot assembly 50 to move in a straight line, realizing the translational transfer of the substrate between the material cage 30 and the laser etching machine body 3.

[0027] Further optimization of the scheme: the material cage 30 includes a lower support plate 303 installed on the material rack assembly 10. A left support plate 301 and a right support plate 302 are respectively installed on both sides of the top surface of the lower support plate 303. A rear support plate 304 is fixedly connected to one side of the left support plate 301 and one side of the right support plate 302. The card slot assembly includes several left card slots and several right card slots. Several left card slots are opened on the end face of the left support plate 301 near the right support plate 302, and several right card slots are opened on the end face of the right support plate 302 near the left support plate 301. The several left card slots and several right card slots are arranged in a one-to-one correspondence. The glass substrate 20 is vertically snapped between the left card slots and the right card slots. A left card slot width adjustment structure 306 is installed in the left card slot, and a right card slot width adjustment structure 305 is installed in the right card slot. Flexible buffer pads are installed on the inner walls of the left card slots and the inner walls of the right card slots. The left slot width adjustment structure 306 and the right slot width adjustment structure 305 can adjust the width of the left and right slots respectively. The slot spacing can be changed through mechanical adjustment (such as screw drive) to adapt to glass substrates 20 of different thicknesses. The flexible buffer pads on the inner wall of the slots are made of silicone or polyurethane, which can absorb impact when in contact with the substrate and avoid damage to the substrate edge or scratches on the coating layer caused by hard contact.

[0028] The design was further optimized by installing support frames 70 at the bottom of the two sets of transplanting linear modules 40.

[0029] Further optimization of the scheme: the main body 3 of the laser etching machine includes a worktable, a dual laser head system and a vision positioning system. A vacuum adsorption device is installed on the worktable. The dual laser head system is installed on two sets of transfer linear modules 40. The vision positioning system is installed on the worktable and is used to photograph the glass substrate 20. The worktable utilizes a high-precision marble platform, offering excellent stability and rigidity to ensure the glass slide is placed stably during etching. The worktable surface is equipped with a vacuum adsorption device; the adsorption area is designed according to the glass size, and the vacuum level can be adjusted to accommodate glass slides of varying thicknesses, preventing displacement of the glass slide during etching.

[0030] The dual-laser-head system features two laser heads mounted on a high-precision linear module, enabling movement in the X, Y, and Z directions. The power and spot size of the laser heads can be adjusted according to different etching processes (P1-P4) to meet the etching depth and precision requirements of each process. The two laser heads can operate independently or collaboratively, improving etching efficiency. For example, during P1 and P2 etching processes, the two laser heads can simultaneously process different areas.

[0031] The visual positioning system uses a high-definition camera to capture images of the edges and feature points of the glass slide, compares them with preset position information, and drives the stage or laser head to make fine adjustments to ensure the accuracy of the etching position.

[0032] The design was further optimized, with two sets of linear guide rail assemblies 503 arranged side by side.

[0033] Example 2

[0034] The difference between this embodiment and Embodiment 1 is that the material handling robot assembly 50 includes: Two rotary spindle connecting blocks 505 are provided, and the two rotary spindle connecting blocks 505 are installed side by side at intervals at the output end of the flipping actuator 60. A flip support plate 501 is fixedly installed on the two rotating spindle connecting blocks 505, and a sliding groove is provided on the flip support plate 501. The drive unit is mounted on the flip support plate 501; The vacuum suction cup assembly is slidably connected to the flip support plate 501, the vacuum suction cup assembly is slidably connected to the slide groove, and the vacuum suction cup assembly is fixedly connected to the output end of the drive unit.

[0035] The drive unit uses gear and rack mechanisms, lead screw assemblies, or open synchronous belt linear motion assemblies to convert rotary transport into linear motion.

[0036] The solution has been further optimized, and the vacuum suction cup assembly adopts non-contact gripping technologies such as magnetohydrodynamic adsorption and electrostatic clamping, making it suitable for large-size / flexible substrates.

[0037] Further optimization of the solution involves using a motor and crank-connecting rod mechanism for the drive component, or using linear motion power sources such as cylinders or electric cylinders to drive the crank-connecting rod to perform a specified angle of rotation, thereby enabling the material handling robot to grasp the glass substrate 20 and perform a rotational motion.

[0038] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply 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 utility model.

[0039] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. For those skilled in the art, other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An automated loading and unloading device for laser etching equipment of photovoltaic solar cell glass substrates, characterized in that: It includes a symmetrically arranged etching machine loading system (1) and etching machine unloading system (2), the etching machine loading system (1) and the etching machine unloading system (2) have the same structure, and a laser etching machine body (3) and a transfer linear module (40) are installed between the etching machine loading system (1) and the etching machine unloading system (2); The etching machine feeding system (1) includes a material rack assembly (10), a material cage (30), a material picking robot assembly (50), and a flipping actuator (60); the material cage (30) is installed on the material rack assembly (10), and the material cage (30) is provided with a number of adjustable width slot assemblies, which are used to vertically place the glass substrate (20); The flipping actuator (60) is installed at the moving end of the transfer linear module (40); the material handling robot assembly (50) is installed at the output end of the flipping actuator (60), and the material handling robot assembly (50) is used to grab the glass substrate (20) in the material cage (30).

2. The automated loading and unloading device for the laser etching equipment of photovoltaic solar cell glass substrates according to claim 1, characterized in that: The material handling robot assembly (50) is provided in two sets, and the material handling robot assembly (50) includes: Two rotating spindle connecting blocks (505) are provided, and the two rotating spindle connecting blocks (505) are installed side by side at intervals at the output end of the flipping actuator (60); A flip support plate (501) is fixedly installed on the two rotating spindle connecting blocks (505), and a sliding groove is provided on the flip support plate (501); Telescopic cylinder (502), which is mounted on the flip support plate (501) via cylinder mounting plate (504); A vacuum suction cup assembly is slidably connected to the flip support plate (501), the vacuum suction cup assembly is slidably connected to the slide groove, and the vacuum suction cup assembly is fixedly connected to the piston end of the telescopic cylinder (502).

3. The automated loading and unloading device for the laser etching equipment of photovoltaic solar cell glass substrates according to claim 2, characterized in that: The vacuum suction cup assembly includes a suction cup fixing slide plate (507), a material picking vacuum suction cup (506), and a linear guide rail assembly (503); a plurality of material picking vacuum suction cups (506) are provided, and a plurality of material picking vacuum suction cups (506) are spaced apart on the suction cup fixing slide plate (507); The linear guide rail assembly (503) is mounted on the flip support plate (501), the suction cup fixing slide plate (507) is slidably connected to the linear guide rail assembly (503), and the suction cup fixing slide plate (507) is slidably connected to the slide groove. The suction cup fixing slide plate (507) is fixedly connected to the piston end of the telescopic cylinder (502).

4. The automated loading and unloading device for the laser etching equipment of photovoltaic solar cell glass substrates according to claim 2, characterized in that: Two sets of transplanting linear modules (40) are arranged side by side. The flipping actuator (60) includes a drive component and a transplanting support mounting block (606). The drive component and the transplanting support mounting block (606) are respectively installed on the moving ends of the two sets of transplanting linear modules (40). A rotating spindle (605) is installed on the output end of the drive component. The rotating spindle (605) is rotatably connected to the transplanting support mounting block (606). Four rotating spindle connecting blocks (505) are all fixedly installed on the rotating spindle (605).

5. The automated loading and unloading device for the laser etching equipment of photovoltaic solar cell glass substrates according to claim 4, characterized in that: The drive assembly includes a motor mounting bracket (602) mounted on the moving end of the transplanting linear module (40). A rotary motor (601) is mounted on the motor mounting bracket (602). A drive gear (603) is mounted on the output shaft of the rotary motor (601). One end of the rotary spindle (605) away from the transplanting support mounting block (606) is rotatably connected to the motor mounting bracket (602). A driven gear (604) is fixedly mounted on the rotary spindle (605). The driven gear (604) meshes with the drive gear (603) for transmission.

6. The automated loading and unloading device for the laser etching equipment of photovoltaic solar cell glass substrates according to claim 1, characterized in that: The material cage (30) includes a lower support plate (303) installed on the material rack assembly (10). A left support plate (301) and a right support plate (302) are respectively installed on both sides of the top surface of the lower support plate (303). A rear support plate (304) is fixedly connected to one side of the left support plate (301) and one side of the right support plate (302). The card slot assembly includes a plurality of left card slots and a plurality of right card slots. The plurality of left card slots are formed on the end face of the left support plate (301) near the right support plate (302), and the plurality of right card slots are formed on the end face of the right support plate (302) near the left support plate (301). The plurality of left card slots and the plurality of right card slots are arranged in a one-to-one correspondence. The glass substrate (20) is vertically engaged between the left card slots and the right card slots. A left card slot width adjustment structure (306) is installed in the left card slot, and a right card slot width adjustment structure (305) is installed in the right card slot. Flexible buffer pads are installed on the inner walls of the left card slots and the inner walls of the right card slots.

7. The automated loading and unloading device for the laser etching equipment of photovoltaic solar cell glass substrates according to claim 1, characterized in that: The bottom of the two sets of transplanting linear modules (40) is equipped with a support frame (70).

8. The automated loading and unloading device for the laser etching equipment of photovoltaic solar cell glass substrates according to claim 1, characterized in that: The main body (3) of the laser etching machine includes a worktable, a dual laser head system and a vision positioning system. A vacuum adsorption device is installed on the worktable. The dual laser head system is installed on two sets of the transfer linear modules (40). The vision positioning system is installed on the worktable and is used to photograph the glass substrate (20).

9. The automated loading and unloading device for the laser etching equipment of photovoltaic solar cell glass substrates according to claim 3, characterized in that: The linear guide rail assembly (503) has two sets arranged side by side.

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