Laser transfer printing device

Abstract

The utility model provides a laser transfer printing device which comprises a laser processing module, a source substrate and a material conveying module, the laser processing module and the source substrate are located at a processing station, the laser processing module comprises a laser and a laser scanning mechanism, and a plurality of grooves distributed at intervals are formed in the lower surface of the source substrate; the material conveying module is used for driving a receiving substrate borne by the material conveying module to move to a machining station at least in the first direction for laser transfer printing, the laser machining module further comprises a light splitting device located between the laser device and the laser scanning mechanism, and a laser beam emitted by the laser device forms a plurality of split light beams after passing through the light splitting device. The distance between every two adjacent split light beams is N times of the distance between every two adjacent grooves in the source substrate, and N is a natural number; the laser scanning mechanism comprises a galvanometer and a focus lens, and the galvanometer is a one-dimensional galvanometer or a two-dimensional galvanometer. According to the laser transfer printing device, the laser transfer printing processing efficiency can be greatly improved, and the productivity is increased. And the device structure can simplify the control algorithm of the device and improve the stability of the device.

Description

Technical Field

[0001] The present application belongs to the field of laser processing, and specifically relates to a laser transfer device. Background Art

[0002] Laser Pattern Transfer Printing (PTP) is a new non-contact printing technology that coats a flexible, light-transmitting material with the desired slurry. A high-powered laser beam is then used to scan the slurry pattern, transferring it from the material to the cell surface to form the grid lines. With the advancement of photovoltaic cell technology, the market is demanding higher efficiency in laser transfer printing. Currently available laser transfer equipment is unable to meet these latest production requirements. Utility Model Content

[0003] In view of this, the present application provides a laser transfer device, comprising a laser processing module, a source substrate and a material conveying module, wherein the laser processing module and the source substrate are located at a processing station, the laser processing module comprises a laser and a laser scanning mechanism, a plurality of grooves arranged at intervals are provided on the lower surface of the source substrate, and the material conveying module is used to drive the receiving substrate it carries to move at least along a first direction to the processing station for laser transfer, characterized in that:

[0004] The laser processing module further includes a beam splitter located between the laser and the laser scanning mechanism, wherein the laser beam emitted by the laser forms a plurality of split beams after passing through the beam splitter, and the spacing between adjacent split beams is N times the spacing between adjacent grooves on the source substrate, where N is a natural number;

[0005] The laser scanning mechanism includes a galvanometer and a focusing mirror, and the galvanometer is a one-dimensional galvanometer or a two-dimensional galvanometer.

[0006] As a further example, the optical splitter device is a polarization laser beam splitter or a diffraction laser beam splitter.

[0007] As a further example, the material conveying module includes a base and at least two conveying components arranged on the base, each of the conveying components includes a lateral motion module that drives the receiving substrate to move along a first direction and a lifting module that drives the receiving substrate to move up and down, wherein the lateral motion module is connected to the base, and the lifting module is connected to the lateral motion module, and each of the lifting modules is connected to at least three supporting platforms arranged side by side along the first direction, and the supporting platforms are used to carry the receiving substrate, and the conveying components drive the corresponding at least three supporting platforms to move left and right in the horizontal direction and / or up and down in the vertical direction and pass through the loading station, the processing station and the unloading station arranged in sequence along the first direction.

[0008] As a further example, at least three position acquisition devices are provided at the loading station for acquiring position information of the substrate received on the carrier, and the position acquisition devices are located above the material conveying module. The number of the position acquisition devices is the same as the number of carriers on each conveying component.

[0009] As a further example, the supporting platform includes a position adjustment mechanism and a supporting plate connected to the position adjustment mechanism for supporting the receiving substrate; the position adjustment mechanism is connected to the lifting module, and the position adjustment mechanism includes an angle adjustment module and a longitudinal motion module connected to the angle adjustment module, and the angle adjustment module and the longitudinal motion module are respectively used to adjust the horizontal angular position and the longitudinal position of the receiving substrate carried on the supporting plate.

[0010] As a further example, it further includes a feeding mechanism provided at the loading station and a discharging mechanism provided at the unloading station, wherein the feeding mechanism and the discharging mechanism respectively include a plurality of transmission units having the same number as the upper bearing platform of the lifting module, and each of the transmission units includes two conveyor belts arranged side by side;

[0011] It also includes one or two sections of feeding conveyor belts arranged before the feeding mechanism or the same number of loading platforms on the lifting module, and one or two sections of discharging conveyor belts arranged after the discharging mechanism or the same number of loading platforms on the lifting module.

[0012] As a further example, a centering clamping mechanism is provided on the outer side of at least one of the feed conveyor belts, and / or a centering clamping mechanism is provided on the outer side of at least one of the discharge conveyor belts.

[0013] As a further example, it also includes a loading speed regulating mechanism arranged before all the feed conveyor belts, and a unloading speed regulating mechanism arranged after all the discharge conveyor belts, the loading speed regulating mechanism includes two conveying units arranged side by side along the second direction, the unloading speed regulating mechanism includes two conveying units arranged side by side along the second direction, the second direction is perpendicular to the first direction, and each conveying unit in the loading speed regulating mechanism and the unloading speed regulating mechanism respectively includes at least three conveying lines and a cache mechanism arranged at the position where the middle conveying line is located.

[0014] As a further example, the loading and speed regulating mechanism includes a first conveying unit and a second conveying unit arranged side by side along the second direction, the output end of the first conveying unit is connected to the feed conveyor belt, the first conveying unit includes a first loading line, a second loading line, and a third loading line arranged in sequence along the first direction, and a first buffer mechanism is provided at the workstation where the second loading line is located;

[0015] The second conveying unit includes a fourth loading line, a fifth loading line, and a sixth loading line arranged in sequence along the first direction. The workstation where the fifth loading line is located is provided with a second cache mechanism, and a first conveying module is provided between the first loading line and the fourth loading line, and a second conveying module is provided between the third loading line and the sixth loading line. The first conveying module is used to convey the battery cells on the first loading line to the fourth loading line, and the second conveying module is used to convey the battery cells on the sixth loading line to the third loading line.

[0016] As a further example, the first loading line, the third loading line, the fourth loading line and the sixth loading line include two belt lines separated along the first direction.

[0017] As a further example, the unloading speed regulating mechanism includes a third conveying unit and a fourth conveying unit arranged side by side along the second direction, the input end of the third conveying unit is connected to the discharge conveyor belt, and the third conveying unit includes a first unloading assembly line, a second unloading assembly line, and a third unloading assembly line arranged in sequence along the first direction, and a third buffer mechanism is provided at the station where the second unloading assembly line is located;

[0018] The fourth conveying unit includes a fourth unloading line, a fifth unloading line, and a sixth unloading line arranged in sequence along the first direction. A fourth cache mechanism is provided at the workstation where the fifth unloading line is located, and a third transport module is provided between the first unloading line and the fourth unloading line, and a fourth transport module is provided between the third unloading line and the sixth unloading line. The third transport module is used to transport the battery cells on the first unloading line to the fourth unloading line, and the fourth transport module is used to transport the battery cells on the sixth unloading line to the third unloading line.

[0019] As a further example, the first unloading assembly line, the third unloading assembly line, the fourth unloading assembly line and the sixth unloading assembly line include two belt lines that are separately arranged along the first direction.

[0020] The laser transfer device proposed in the present invention can significantly improve the efficiency of laser transfer processing and increase production capacity. In addition, the device structure can simplify the device's control algorithm, improve the device's stability, and facilitate mass production. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are merely embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without any creative work.

[0022] The structures, proportions, sizes, etc. depicted in the drawings of this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with this technology. They are not intended to limit the conditions under which this application can be implemented, and therefore have no substantive technical significance. Any structural modifications, changes in proportional relationships, or adjustments in size, without affecting the efficacy and objectives that can be achieved by this application, should still fall within the scope of the technical contents disclosed in this application.

[0023] Figure 1 A schematic structural diagram of a laser transfer device according to an embodiment of the present application;

[0024] Figure 2 A schematic structural diagram of a position adjustment mechanism according to an embodiment of the present application;

[0025] Figure 3 A schematic structural diagram of a laser transfer device according to another embodiment of the present application;

[0026] Figure 4 A schematic structural diagram of a feeding speed regulating mechanism according to an embodiment of the present application;

[0027] Figure 5 A schematic structural diagram of a material feeding speed regulating mechanism according to an embodiment of the present application;

[0028] Figure 6 This is a schematic structural diagram of a cache mechanism in conjunction with a belt according to an embodiment of the present application. DETAILED DESCRIPTION

[0029] The following will be combined with the accompanying drawings in the embodiments of this application to clearly and completely describe the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0030] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the present application is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0031] The existing laser transfer devices mainly use a dual-table interactive structure for the automated transportation of battery cells, and cooperate with a one-dimensional high-frequency galvanometer for the laser transfer process. However, the processing frequency of the one-dimensional high-frequency galvanometer has basically reached its upper limit and cannot be further improved stably for the time being, thus failing to meet the latest production capacity requirements.

[0032] Based on this, the present application provides a laser transfer device, such as Figure 1 As shown, from top to bottom, it includes a laser processing module 100, a source substrate 200 and a material conveying module 300. The laser processing module 100 and the source substrate 200 are located in a processing station, which is a spatial position. The material conveying module 300 can drive the receiving substrate to pass through the station. The laser processing module 100 includes a laser and a laser scanning mechanism. The laser is used to emit a laser beam, and the laser scanning mechanism is used to control the scanning direction of the laser beam. A plurality of grooves arranged at intervals are provided on the lower surface of the source substrate 200. The grooves are used to place the slurry to be transferred. The material conveying module 300 is used to drive the receiving substrate it carries to move at least along the first direction to the processing station for laser transfer. The material conveying module 300, such as the structure described below, can not only drive the receiving substrate it carries to move along the first direction, but can also perform lifting movements at other positions. Of course, other material conveying modules 300 that can drive the receiving substrate to pass through the processing station are also within the scope of protection of this patent. Among them, in the photovoltaic field, the receiving substrate is the battery cell. The first direction is, for example, Figure 1 The X-axis direction in .

[0033] The laser processing module 100 also includes a spectrometer located between the laser and the laser scanning mechanism. The laser beam emitted by the laser forms a plurality of spectrometer beams after passing through the spectrometer. The spacing between adjacent spectrometer beams is N times the spacing between adjacent grooves on the source substrate 200, where N is a natural number. Preferably, N is the number of cells that can be transferred from a unit of the source substrate 200. The laser scanning mechanism includes a galvanometer and a focusing mirror. The galvanometer is a one-dimensional galvanometer or a two-dimensional galvanometer, and the focusing mirror is, for example, a field mirror. Preferably, when the galvanometer is a two-dimensional galvanometer, the control process of the laser transfer device is simpler. The spectrometer is a conventional polarization-type laser beam splitter or a diffraction-type laser beam splitter, such as a DOE (diffraction optical element).

[0034] By using a beam splitter to split the laser beam, at least two grid lines can be transferred simultaneously onto a cell. The laser transfer device proposed in this invention can significantly improve the efficiency of laser transfer processing and increase production capacity. Furthermore, the device structure simplifies the control algorithm of the laser transfer device, improves the device's stability, and facilitates mass production.

[0035] During operation, the slurry is transferred from two grooves at a time until all grid lines on a cell are transferred. Then, the material conveying module 300 drives the next cell to the processing station for continued transfer. Assuming that the beam splitter splits the laser beam into two beams, it is preferred to first transfer grid lines numbered 1 and 2 on the cell, followed by grid lines numbered 3 and 4, and so on. The grid lines on the cell are numbered 1, 2, 3, 4, and so on.

[0036] As another example, Figure 1 As shown, the material conveying module 300 includes a base 310 and at least two conveying assemblies 320 disposed on the base 310. The at least two conveying assemblies 320 are located on either side of the base 310. Each conveying assembly 320 includes a transverse motion module 321 for driving the receiving substrate to move in a first direction and a lifting module 322 for driving the receiving substrate to move up and down. The transverse motion module 321 is connected to the base 310, and the lifting module 322 is connected to the transverse motion module 321. Each lifting module 322 is connected to at least three supporting platforms 323 arranged side by side along the first direction. The supporting platforms 323 are used to support the receiving substrate. The conveying assembly 320 drives its corresponding at least three supporting platforms 323 to move left and right in the horizontal direction and / or up and down in the vertical direction, and sequentially passes through the loading station, processing station, and unloading station arranged in sequence along the first direction, and alternately cycles. The driving actuators in the transverse motion module 321 and the lifting module 322 are preferably motors. During operation, during the combined processing time of all the carriers 323 on one conveyor assembly 320, another conveyor assembly 320 completes unloading and loading of the receiving substrate and other preparatory work. The material conveying module 300 periodically delivers the battery cells one by one to the bottom of the source substrate 200.

[0037] The laser processing module 100 of this patent is provided with a spectrometer, thereby improving the laser processing efficiency. At this time, in order to make the material conveying module 300 keep up with the processing rhythm of the laser processing module 100, this patent changes the two supporting platforms 323 provided on each conveying component 320 in existing practical applications to at least three supporting platforms 323. As a result, the total processing time of one conveying component 320 is increased, and the time left for the other conveying component 320 to complete other tasks is increased, thereby making the material conveying consistent with the laser processing rhythm, thereby further ensuring the improvement of production capacity.

[0038] As another example, Figure 1As shown, the system also includes at least three position acquisition devices 400 disposed at the loading station for acquiring position information of substrates received on the carrier 323. The position acquisition devices 400 are located above the material conveying module 300. The number of position acquisition devices 400 is the same as the number of carriers 323 on each conveying assembly 320. Specifically, each position acquisition device 400 may include three positioning cameras, and a group of three positioning cameras can complete the photo positioning of a single cell.

[0039] As another example, Figure 2 As shown, the carrier 323 includes a position adjustment mechanism and a carrier plate 3231 connected to the position adjustment mechanism for carrying the receiving substrate; the position adjustment mechanism is connected to the lifting module 322, and the position adjustment mechanism includes an angle adjustment module 3232 and a longitudinal motion module 3233 connected to the angle adjustment module 3232. The angle adjustment module 3232 and the longitudinal motion module 3233 are respectively used to adjust the horizontal angle position and longitudinal position of the receiving substrate carried on the carrier plate 3232. The longitudinal direction is Figure 2 The position acquisition device 400 takes a picture of each cell in advance (for example, at the loading station) to locate the cell, and then sends the cell position information to the position adjustment mechanism and the lateral motion module 321. Then, the position adjustment mechanism and the lateral motion module 321 cooperate to complete the position adjustment of each cell to improve the processing accuracy of the laser transfer. Among them, the lateral motion module 321 can adjust the cell in the first direction, i.e. Figure 1 The accuracy of the X-axis position.

[0040] As another example, Figure 3 As shown, the laser transfer device also includes a feeding mechanism 500 arranged at the loading station and a discharging mechanism 600 arranged at the unloading station. The feeding mechanism 500 is used to provide battery cells to the carrier 323, and the discharging mechanism 600 is used to receive the battery cells processed on the carrier 323. The feeding mechanism 500 and the discharging mechanism 600 each include a plurality of transmission units that are the same number as the carriers 323 on the lifting module 322. Each transmission unit includes two conveyor belts arranged side by side along the second direction. When the carrier 323 moves to the loading station, the lifting module 322 is lifted and moved through the position between the two conveyor belts spaced side by side, thereby completing the carrier 323 to obtain the battery cells and transfer the battery cells. The multiple transmission units cooperate with sensors to control the stopping position of each battery cell on the conveyor belt. The spacing between the two conveyor belts is larger than the size of the carrier 323 in the second direction.

[0041] The laser transfer device also includes one or two sections of feed conveyor belts 700 disposed before the feed mechanism 500, or a number corresponding to the number of platforms 323 disposed on the lifting module 322, and one or two sections of discharge conveyor belts 800 disposed after the discharge mechanism 600, or a number corresponding to the number of platforms 323 disposed on the lifting module 322. The provision of the feed conveyor belts 700 and the discharge conveyor belts 800 allows for better coordination with the conveyor belts of the feed mechanism 500 and the discharge mechanism 600, and also facilitates the provision of a centering clamp mechanism for rough positioning, as described below.

[0042] Furthermore, at least one of the feed conveyor belts 700 is provided with a centering clamp mechanism on its outer side, and / or at least one of the discharge conveyor belts 800 is provided with a centering clamp mechanism on its outer side. This means that one feed conveyor belt 700, two feed conveyor belts 700, or all feed conveyor belts 700 may be provided with a centering clamp mechanism. The discharge conveyor belts 800 may also be provided with the same number of centering clamp mechanisms. The centering clamp mechanism is a conventional mechanism in the prior art, used to center and clamp the battery cells for rough positioning. The specific structure of the centering clamp mechanism is not described here. During operation, the laser transfer device generally delivers battery cells one by one to the feed mechanism 500. When there are three supporting platforms 323 on a lifting module 322, three sections of feed conveyor belts 700 may also be provided before the feed mechanism 500. This allows the required number of battery cells from a lifting module 322 to be fed into the feed mechanism 500 at once, thereby further increasing production capacity. At this time, the outer sides of the three sections of the feeding conveyor belt 700 can all be provided with a centering clamping mechanism.

[0043] Generally, a source substrate 200 of one unit can complete the transfer of N battery cells. When the transfer of one source substrate 200 is completed, it will switch to the source substrate 200 of the next unit, and then complete the transfer of the next group of N battery cells, and so on. However, there are currently situations where the battery cell feeding rhythm is inconsistent with the rhythm required for the battery cell transfer and switching of the source substrate 200; or there are situations where the battery cell discharge rhythm is inconsistent with the rhythm required for the battery cell transfer and switching of the source substrate 200. Therefore, this patent also provides a loading speed control mechanism 900 before all feeding conveyor belts 700 and a unloading speed control mechanism 1000 after all discharging conveyor belts 800.

[0044] Furthermore, the loading speed regulating mechanism 900 includes two conveyor units arranged side by side along a second direction, and the unloading speed regulating mechanism 1000 includes two conveyor units arranged side by side along a second direction, the second direction being perpendicular to the first direction. Each conveyor unit in the loading speed regulating mechanism 900 and the unloading speed regulating mechanism 1000 includes at least three conveyor lines and a buffer mechanism located at the location of the intermediate conveyor line. The loading speed regulating mechanism 900 and the two buffer mechanisms in the loading speed regulating mechanism 900 alternately buffer and release the battery cells, thereby ensuring the normal feeding and discharging of the laser transfer device, and preventing the battery cells from waiting or being unable to keep up due to inconsistent beats.

[0045] Specifically, as another embodiment, Figure 4 As shown, the laser transfer device also includes a loading speed regulating mechanism 900 arranged before all the feeding conveyor belts 700. Here, "before" means along the conveying direction, first passing through the loading speed regulating mechanism 900 and then passing through the feeding conveyor belt 700. The loading speed regulating mechanism 900 includes a first conveying unit and a second conveying unit arranged side by side along the second direction. The second direction in this embodiment is Figure 4 In the Y-axis direction, the second direction is perpendicular to the first direction, the output end of the first conveying unit is connected to the feed conveyor belt 700, and the first conveying unit includes a first loading line 1, a second loading line, and a third loading line 3 arranged in sequence along the first direction, and a first buffer mechanism 1-1 is provided at the station where the second loading line 2 is located;

[0046] The second conveying unit includes a fourth loading line 4, a fifth loading line 5, and a sixth loading line 6 arranged in sequence along the first direction. A second cache mechanism 1-2 is provided at the workstation where the fifth loading line 5 is located, and a first conveying module 1-3 is provided between the first loading line 1 and the fourth loading line 4, and a second conveying module 1-4 is provided between the third loading line 3 and the sixth loading line 6. The first conveying module 1-3 is used to convey the battery cells on the first loading line 1 to the fourth loading line 4, and the second conveying module 1-4 is used to convey the battery cells on the sixth loading line 6 to the third loading line 3.

[0047] The source substrate 200 of one unit can complete the transfer work of N battery cells, and the cache capacity of one cache mechanism is N or an integer multiple of N.

[0048] Furthermore, the structures of the first buffer mechanism 1-1 and the second buffer mechanism 1-2 are conventional structures in the prior art, specifically, comprising two lifting buffer units disposed on both sides of their corresponding conveying lines, such as Figure 6As shown. Simultaneously, the two elevating buffer units can be driven by the drive assembly of the buffer mechanism to perform synchronous lifting and lowering motions. Furthermore, the two elevating buffer units are each protrudingly provided with a plurality of vertically spaced buffer elements on the side closest to the belt, forming a plurality of vertically layered buffer positions on the two elevating buffer units. For example, when performing a battery cell caching operation, the two elevating buffer units are driven by the drive assembly to step upward. When the buffer mechanism needs to release the battery cell to its corresponding conveyor line, the two elevating buffer units are driven by the drive assembly to step downward.

[0049] Furthermore, the structure of the first transport module 1-3 and the second transport module 1-4 is also a conventional structure in the prior art, for example, including a transport drive actuator and a suction cup assembly connected to the transport drive actuator. The transport drive actuator can drive the suction cup assembly to move back and forth between its corresponding two conveying lines. The transport drive actuator is, for example, a motor or a cylinder, and the suction cup assembly is used to absorb or release the battery cells.

[0050] By setting up the feeding speed regulating mechanism 900, the first buffer mechanism 1-1 and the second buffer mechanism 1-2 alternately buffer / release the battery cells, thereby ensuring the normal feeding flow of the laser transfer device and preventing the battery cells from waiting or failing to keep up due to inconsistent beats.

[0051] As another embodiment, the first loading line 1, the third loading line 3, the fourth loading line 4 and the sixth loading line 6 include two belt lines separately arranged along the first direction, thereby further improving production capacity.

[0052] During operation, the first conveyor unit receives battery cells, which are then transferred to the second loading line 2 via the first loading line 1 at the fixed cycle time of the previous equipment. The battery cells are then stored by the first buffer mechanism 1-1. When the first buffer mechanism 1-1 is full of battery cells, the battery cells are transferred to the feed conveyor 700 via the third loading line 3. Starting from the second loading line 2, the battery cells are transferred to the feed conveyor 700 at the cycle time of the material conveying module 300, and then transferred to the feeding mechanism 500. While the first buffer mechanism 1-1 releases the battery cells to the second loading line 2, the battery cells on the fourth loading line 1 are transferred from the first loading line 1 to the fourth loading line 4 in groups of two by the first transport module 1-3. They are then transferred to the fifth loading line 5, where they are stored by the second buffer mechanism 1-2. When all the cells cached in the first buffer mechanism 1-1 are released, the first buffer mechanism 1-1 begins to cache cells again. The cells released by the second buffer mechanism 1-2 are transferred to the sixth loading line 6. The cells are then transported in groups of two from the sixth loading line 6 to the third loading line 3 via the second transfer module 1-4. The cells are then fed to the feed conveyor 700. When the cells in the second buffer mechanism 1-2 are fully released, they begin to store them. The first buffer mechanism 1-1 is also fully stocked and begins to discharge cells, continuing this cycle.

[0053] As another example, Figure 5 As shown, the laser transfer device further includes a material unloading speed regulating mechanism 1000 arranged behind all the unloading conveyor belts 800, and the material unloading speed regulating mechanism 1000 includes a third conveying unit and a fourth conveying unit arranged side by side along the second direction, the second direction being perpendicular to the first direction. In this embodiment, the second direction is Figure 5 In the Y-axis direction, the input end of the third conveying unit is connected to the discharge conveyor belt 800. The third conveying unit includes a first unloading assembly line 7, a second unloading assembly line 8, and a third unloading assembly line 9 arranged in sequence along the first direction. The station where the second unloading assembly line 8 is located is provided with a third buffer mechanism 1-5;

[0054] The fourth conveying unit includes a fourth unloading line 10, a fifth unloading line 11, and a sixth unloading line 12 arranged in sequence along the first direction. A fourth cache mechanism 1-6 is provided at the workstation where the fifth unloading line 11 is located, and a third transport module 1-7 is provided between the first unloading line 7 and the fourth unloading line 10, and a fourth transport module 1-8 is provided between the third unloading line 9 and the sixth unloading line 12. The third transport module 1-7 is used to transport the battery cells on the first unloading line 7 to the fourth unloading line 10, and the fourth transport module 1-8 is used to transport the battery cells on the sixth unloading line 12 to the third unloading line 9.

[0055] The structures of the third buffer mechanism 1 - 5 and the fourth buffer mechanism 1 - 6 , and the third transfer module 1 - 7 and the fourth transfer module 1 - 8 are described above.

[0056] Similarly, by setting up the unloading speed regulating mechanism 1000, the third cache mechanism 1-5 and the fourth cache mechanism 1-6 alternately cache / release the battery cells, thereby ensuring the normal output flow of the laser transfer device and preventing the battery cells from waiting or failing to keep up due to inconsistent beats.

[0057] As another embodiment, the first unloading assembly line, the third unloading assembly line, the fourth unloading assembly line and the sixth unloading assembly line include two belt lines separately arranged along the first direction, thereby further improving production capacity.

[0058] During operation, the third conveyor unit receives battery cells from the discharge conveyor 800. These cells are then transferred to the second discharge line 8 via the first unloading line 7 at a fixed cycle time. The third buffer mechanism 1-5 then stores the cells. When the third buffer mechanism 1-5 is full of cells, the third unloading line 9 transfers the cells at the cycle time of the subsequent docking equipment. Simultaneously, the battery cells from the discharge conveyor 800 are transferred from the first unloading line 7 to the fourth unloading line 10 in groups of two by the third transfer module 1-7. The cells are then transferred to the fifth unloading line 11, where they are stored by the fourth buffer mechanism 1-6. When all the cells cached in the third buffer mechanism 1-5 are released, the third buffer mechanism 1-5 begins to cache cells again. The cells in the fourth buffer mechanism 1-6 are transferred to the sixth unloading line 12. The cells are then transported in groups of two from the sixth unloading line 12 to the third unloading line 9 via the fourth transport module 1-8. The cells are then transported through the docking equipment at the end of the third unloading line 9. When the cells in the fourth buffer mechanism 1-6 are exhausted, they begin to store them. The third buffer mechanism 1-5 is also fully stocked and begins to discharge cells, continuing this cycle.

[0059] The various embodiments in this specification are described in a progressive, parallel, or combined manner. Each embodiment focuses on the differences from other embodiments, and reference can be made to the common and similar parts between the various embodiments. For the devices disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple. For relevant parts, refer to the description of the methods.

[0060] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present application. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A laser transfer device, comprising a laser processing module, a source substrate, and a material conveying module, wherein the laser processing module and the source substrate are located at a processing station, the laser processing module comprises a laser and a laser scanning mechanism, the lower surface of the source substrate is provided with a plurality of grooves arranged at intervals, and the material conveying module is used to drive the receiving substrate it carries to move at least along a first direction to the processing station for laser transfer, characterized in that: The laser processing module further includes a beam splitter located between the laser and the laser scanning mechanism, wherein the laser beam emitted by the laser forms a plurality of split beams after passing through the beam splitter, and the spacing between adjacent split beams is N times the spacing between adjacent grooves on the source substrate, where N is a natural number; The laser scanning mechanism includes a galvanometer and a focusing mirror, and the galvanometer is a one-dimensional galvanometer or a two-dimensional galvanometer.

2. The laser transfer device according to claim 1, wherein: The optical splitter is a polarization laser beam splitter or a diffraction laser beam splitter.

3. The laser transfer device according to claim 1, wherein: The material conveying module includes a base and at least two conveying components arranged on the base, each of the conveying components includes a lateral motion module that drives the receiving substrate to move along the first direction and a lifting module that drives the receiving substrate to move up and down, wherein the lateral motion module is connected to the base, and the lifting module is connected to the lateral motion module, and each of the lifting modules is connected to at least three supporting platforms arranged side by side along the first direction, and the supporting platforms are used to carry the receiving substrate, and the conveying components drive the corresponding at least three supporting platforms to move left and right in the horizontal direction and / or up and down in the vertical direction and pass through the loading station, the processing station and the unloading station arranged in sequence along the first direction.

4. The laser transfer device according to claim 3, characterized in that: It also includes at least three position acquisition devices arranged at the loading station for acquiring the position information of the substrate received on the carrier, the position acquisition devices are located above the material conveying module, and the number of the position acquisition devices is the same as the number of carriers on each conveying component.

5. The laser transfer device according to claim 3, characterized in that: The supporting platform includes a position adjustment mechanism and a supporting plate connected to the position adjustment mechanism for supporting the receiving substrate; the position adjustment mechanism is connected to the lifting module, and the position adjustment mechanism includes an angle adjustment module and a longitudinal motion module connected to the angle adjustment module, and the angle adjustment module and the longitudinal motion module are respectively used to adjust the horizontal angular position and the longitudinal position of the receiving substrate carried on the supporting plate.

6. The laser transfer device according to claim 3, characterized in that: It also includes a feeding mechanism provided at the loading station and a discharging mechanism provided at the unloading station, wherein the feeding mechanism and the discharging mechanism respectively include a plurality of transmission units having the same number as the upper bearing platform of the lifting module, and each of the transmission units includes two conveyor belts arranged side by side; It also includes one or two sections of feeding conveyor belts arranged before the feeding mechanism or the same number of loading platforms on the lifting module, and one or two sections of discharging conveyor belts arranged after the discharging mechanism or the same number of loading platforms on the lifting module.

7. The laser transfer device according to claim 6, characterized in that: At least one of the feed conveyor belts is provided with a centering clamping mechanism on its outer side, and / or at least one of the discharge conveyor belts is provided with a centering clamping mechanism on its outer side.

8. The laser transfer device according to claim 6, wherein: It also includes a loading speed regulating mechanism arranged before all the feed conveyor belts, and a unloading speed regulating mechanism arranged after all the discharge conveyor belts, the loading speed regulating mechanism includes two conveying units arranged side by side along the second direction, the unloading speed regulating mechanism includes two conveying units arranged side by side along the second direction, the second direction is perpendicular to the first direction, and each conveying unit in the loading speed regulating mechanism and the unloading speed regulating mechanism respectively includes at least three sections of conveying lines and a cache mechanism arranged at the position where the middle conveying line is located.

9. The laser transfer device according to claim 8, characterized in that: The feeding speed regulating mechanism includes a first conveying unit and a second conveying unit arranged side by side along the second direction, the output end of the first conveying unit is connected to the feed conveyor belt, the first conveying unit includes a first feeding line, a second feeding line, and a third feeding line arranged in sequence along the first direction, and a first buffer mechanism is provided at the station where the second feeding line is located; The second conveying unit includes a fourth loading line, a fifth loading line, and a sixth loading line arranged in sequence along the first direction. The workstation where the fifth loading line is located is provided with a second cache mechanism, and a first conveying module is provided between the first loading line and the fourth loading line, and a second conveying module is provided between the third loading line and the sixth loading line. The first conveying module is used to convey the battery cells on the first loading line to the fourth loading line, and the second conveying module is used to convey the battery cells on the sixth loading line to the third loading line.

10. The laser transfer device according to claim 9, characterized in that: The first loading line, the third loading line, the fourth loading line and the sixth loading line include two sections of belt lines that are separately arranged along a first direction.

11. The laser transfer device according to claim 8, characterized in that: The unloading speed regulating mechanism includes a third conveying unit and a fourth conveying unit arranged side by side along the second direction, the input end of the third conveying unit is connected to the discharge conveyor belt, and the third conveying unit includes a first unloading assembly line, a second unloading assembly line, and a third unloading assembly line arranged in sequence along the first direction, and a third buffer mechanism is provided at the station where the second unloading assembly line is located; The fourth conveying unit includes a fourth unloading line, a fifth unloading line, and a sixth unloading line arranged in sequence along the first direction. A fourth cache mechanism is provided at the workstation where the fifth unloading line is located, and a third transport module is provided between the first unloading line and the fourth unloading line, and a fourth transport module is provided between the third unloading line and the sixth unloading line. The third transport module is used to transport the battery cells on the first unloading line to the fourth unloading line, and the fourth transport module is used to transport the battery cells on the sixth unloading line to the third unloading line.

12. The laser transfer device according to claim 11, wherein: The first unloading assembly line, the third unloading assembly line, the fourth unloading assembly line and the sixth unloading assembly line include two sections of belt lines that are separately arranged along a first direction.

Images