Solar cell mask removing equipment

Abstract

The utility model discloses a solar cell mask removing device, which relates to the technical field of solar cell manufacturing, is used for solving the problem that flexible mask removing is complicated, and is used for a solar cell which comprises a cell piece body and a flexible mask adhered to at least one surface of the cell piece body. The flexible mask comprises at least one extension part extending out of the battery piece body; the solar cell mask removing equipment comprises an adsorption positioning platform used for adsorbing and fixing a solar cell, so that at least one extension part of the solar cell is located outside the edge of the adsorption positioning platform; and the film tearing device is used for clamping at least one extension part of the flexible mask and tearing the flexible mask from the battery piece body.

Description

Technical Field

[0001] The utility model relates to the technical field of solar cell manufacturing, in particular to a solar cell mask removing device. Background Art

[0002] In the process of manufacturing solar cells, various functional film layers with special graphics need to be made on the surface of the solar cell, such as a transparent conductive layer, a metal electrode layer, an amorphous silicon layer, a passivation layer and / or an anti-reflection layer, etc., and the production of these functional film layers requires the use of a specific type of mask, namely a flexible mask, which is a composite structure composed of a polymer film and an adhesive layer. Specifically, in the process of preparing the functional film layer, a flexible mask with a certain hollow pattern is first attached to the surface of the solar cell, and then a functional layer is prepared on the surface of the flexible mask and the hollow part of the flexible mask by evaporation, chemical vapor deposition, etc., and then the flexible mask together with the functional film layer deposited thereon is removed from the solar cell to obtain a solar cell with a functional film layer deposited thereon.

[0003] The removal of the mask of the existing solar cell is usually done by dissolving the mask with chemical reagents, but the chemical reagents used are harmful to the human body, the removal efficiency is low, and a large amount of wastewater is generated, and the treatment process is extremely complicated. Utility Model Content

[0004] The utility model aims to provide a solar cell mask removal device to simplify the removal process of the flexible mask, improve the removal efficiency and reduce the harm to human body and environment.

[0005] The utility model provides a solar cell mask removal device, which is applied to a solar cell. The solar cell comprises a cell body and a flexible mask adhered to at least one side of the cell body. The flexible mask comprises at least one extension portion extending out of the cell body.

[0006] Solar cell mask removal equipment includes:

[0007] An adsorption positioning platform, used for adsorbing and fixing the solar cell so that at least one extension portion of the solar cell is located outside the edge of the adsorption positioning platform;

[0008] The film tearing device is used to clamp at least one extension portion of the flexible mask and tear the flexible mask off the battery cell body.

[0009] When the above technical solution is adopted, the solar cell is adsorbed and fixed on the adsorption positioning platform by the adsorption effect of the adsorption positioning platform. At this time, at least one extension on the solar cell is located outside the edge of the adsorption positioning platform. After that, the at least one extension located outside the edge of the adsorption positioning platform is clamped by the film tearing device, and then the film tearing device performs the film tearing operation. The clamped extension drives the entire flexible mask to be peeled off from the battery cell body, and the flexible mask on the solar cell is peeled off. Compared with the existing chemical reagents to dissolve the mask, the mask removal device in this application does not have chemical hazards to the human body and is unfriendly to the environment, and the tearing process is simple.

[0010] In some possible implementations, the film tearing device includes a clamp, and the clamp has a clamping portion for clamping the extension portion. In this way, the extension portion of the flexible mask is clamped by the clamping portion of the clamp, and the clamping operation is convenient.

[0011] In some possible implementations, the clamp includes a clamping shaft, which can rotate around its axis. The clamping shaft is surrounded by at least two clamping blocks arranged along the circumference. Adjacent clamping blocks can move closer to or farther away from each other to form a clamping portion for clamping the extension. In this way, the clamping blocks move away from each other, so that the clamping portion opens, and the clamping blocks move closer to each other, so that the clamping portion closes. After the clamping portion of the clamping shaft clamps the extension, as the clamping shaft moves relative to the adsorption positioning platform, the flexible mask is torn off the battery cell body and wound on the clamping shaft. The clamping shaft can facilitate clamping and winding operations.

[0012] Alternatively, in some possible implementations, the clamp includes a sleeve, a driving mechanism, and one or more clamps arranged in sequence along the axis of the sleeve, the sleeve can rotate around its axis, the tube wall of the sleeve is provided with a through groove, the clamp and the driving mechanism are fixed in the sleeve, one end of the clamp has an openable and closable clamping portion, the clamping portion is aligned with the through groove, the other end of the clamp has a pressure applying portion for applying pressing force, the clamp is used to clamp one or more extensions, and the driving mechanism is used to apply pressing force to the pressure applying portion of the clamp.

[0013] When the above technical solution is adopted, the driving mechanism applies a pressing force to the pressure-applying part of the clamp, so that the clamping end of the clamp opens. After the extension part is placed in the opened clamping end, the driving mechanism releases the pressure on the pressure-applying part, and the clamping end clamps the extension part. As the clamp moves relative to the adsorption positioning platform, the flexible mask is torn off the battery cell body and wound on the sleeve. By providing a separate clamp, the opening and closing of the clamping end of the clamp can be independently controlled, which facilitates the subsequent removal of the flexible mask wound on the sleeve.

[0014] In some possible implementations, the solar cell mask removal device further includes a waste film removal device, which is used to remove the flexible mask torn off by the film tearing device from the film tearing device, so as to facilitate the removal of the waste film on the film tearing device to continue the film tearing operation.

[0015] In some possible implementations, the film tearing device includes a clamp having a clamping portion for clamping the extension portion;

[0016] The waste film removal device includes a vacuum adsorption mechanism, which has a vacuum adsorption groove, and the vacuum adsorption groove is used to adsorb the flexible mask wound on the clamp. After the vacuum adsorption mechanism adsorbs the flexible mask, it removes the flexible mask from the clamp. The vacuum adsorption mechanism can only act on the flexible mask, and will not apply force to the clamp to cause accidental damage to the clamp.

[0017] Alternatively, the waste film removal device includes a clamping mechanism, which is used to clamp the flexible mask wound on the clamp and remove it from the clamp. After the clamping mechanism clamps the flexible mask, the flexible mask is removed from the clamp. The clamping mechanism can improve the grip of the flexible mask, which is conducive to faster removal of the waste film from the clamp.

[0018] In some possible implementations, the solar cell mask removal device further includes a stripping device, which is used to strip the flexible mask stripped by the film stripping device from the film stripping device, so as to facilitate the stripping of the waste film on the film stripping device to continue the film stripping operation.

[0019] In some possible implementations, the film-tearing device includes a clamp having a clamping portion for clamping the extension portion; and the stripping device includes:

[0020] A stripping component, wherein the stripping component has a stripping surface that matches the shape of the outer peripheral surface of the clamp, the distance between the stripping surface and the outer peripheral surface of the clamp is greater than or equal to 0 and less than or equal to the thickness of the flexible mask, and the stripping component can move relative to the clamp along the winding axis of the clamp to push the flexible mask wound on the clamp to be stripped from the clamp;

[0021] A driving component, a driving end of which is connected to the stripping component, and the driving component is used to drive the stripping component to move relative to the winding axis of the clamp.

[0022] When the above technical solution is adopted, the driving component drives the stripping surface of the stripping component to move from one end of the clamp to the other end along the direction of the winding axis of the clamp. During the movement, since the stripping surface of the stripping component matches the shape of the outer peripheral surface of the clamp, and the distance between the two is less than or equal to the thickness of the flexible mask, the stripping component can push the flexible mask wound on the outer peripheral surface of the clamp down along the winding axis of the clamp. The stripping of the flexible mask is completed. The stripping device can strip the flexible mask on the clamp more completely.

[0023] In some possible implementations, the solar cell mask removal device further includes:

[0024] A scraping device, the scraping device is used to scrape off the flexible mask remaining between the clamping blocks;

[0025] And / or, a purging device, the purging device is used to purge the flexible mask remaining between the clamping blocks.

[0026] When adopting the above technical solution, in the process of peeling off the flexible mask on the clamping shaft by the waste film removing device and the peeling device, since the clamping blocks of the clamping shaft are in a state of being clamped close to each other, after peeling off the flexible mask, part of it will remain between the clamping blocks. Therefore, after the clamping blocks are opened away from each other, the scraping device will scrape off the flexible mask remaining between the clamping blocks and / or the blowing device will blow away the remaining flexible mask.

[0027] In some possible implementations, the solar cell mask removal device further includes a sheet feeding device for conveying the solar cell to the adsorption positioning platform. In this way, by transferring the solar cell through the sheet feeding device, manpower can be saved and the risk of damage to the solar cell due to errors in the manual transfer process can be reduced.

[0028] In some possible implementations, the film feeding device includes:

[0029] A wafer carrier mechanism, used for carrying at least one solar cell;

[0030] A transfer mechanism, used to transfer the battery cell from the carrier mechanism to the adsorption positioning platform;

[0031] A pick-and-place mechanism is arranged at the moving end of the transfer mechanism, and is used to obtain the battery cell from the carrier mechanism and release the battery cell to the adsorption positioning platform.

[0032] When the above technical solution is adopted, the film feeding device stores the solar cells to be torn off through the film carrier mechanism, and the moving end of the transfer mechanism drives the pick-and-place mechanism to move. After the pick-and-place mechanism obtains the solar cells from the film carrier mechanism, the transfer mechanism drives the pick-and-place mechanism and the obtained solar cells to be transferred to the adsorption positioning platform. After that, the pick-and-place mechanism releases the solar cells to the adsorption positioning platform, completing the transportation of the solar cells to the adsorption positioning platform. The film feeding process is simple and reliable.

[0033] In some possible implementations, the film feeding device includes:

[0034] A wafer carrier mechanism, used for carrying at least one solar cell;

[0035] The conveying mechanism comprises a conveying bearing part for bearing the solar cells, the conveying path of the conveying bearing part passes through the wafer carrier mechanism and the adsorption positioning platform, the conveying bearing part is located below the wafer carrier mechanism and above the adsorption positioning platform, the conveying mechanism and the wafer carrier mechanism as well as the conveying mechanism and the adsorption positioning platform can all move up and down relatively, and an avoidance groove for avoiding the conveying bearing part is provided on the adsorption surface of the adsorption positioning platform, and the depth of the avoidance groove is greater than or equal to the thickness of the conveying bearing part.

[0036] When the above technical solution is adopted, the film feeding device stores the solar cells to be torn off through the film carrier mechanism, and the conveying bearing part of the conveying mechanism can be transmitted and moved between the film carrier mechanism and the adsorption positioning platform. The conveying mechanism moves up and down relative to the film carrier mechanism, and a solar cell on the film carrier mechanism is placed on the conveying bearing part of the conveying mechanism. The conveying bearing part conveys the solar cell to the top of the adsorption positioning platform. After that, the conveying mechanism and the adsorption positioning platform move up and down relative to each other, so that the conveying bearing part enters the avoidance groove in the vertical direction. Since the depth of the avoidance groove is greater than or equal to the thickness of the conveying bearing part, the solar cell is in supporting contact with the adsorption positioning surface of the adsorption positioning platform. At the same time, the adsorption positioning platform adsorbs and fixes the solar cell to complete the transfer of the solar cell from the film carrier mechanism to the adsorption positioning platform.

[0037] In some possible implementations, the film feeding device includes:

[0038] A wafer carrier mechanism, used for carrying at least one solar cell;

[0039] A conveying mechanism, wherein the conveying mechanism has a conveying bearing part for bearing the solar cell, the conveying path of the conveying bearing part passes through the wafer carrier mechanism, the conveying bearing part is located below the wafer carrier mechanism, and the conveying mechanism and the wafer carrier mechanism can move up and down relatively;

[0040] A transfer mechanism, used to transfer the solar cell from the conveying and carrying part to the adsorption and positioning platform;

[0041] The pick-and-place mechanism is arranged at the moving end of the transfer mechanism, and is used to obtain the solar cells from the conveying bearing part and release the solar cells to the adsorption positioning platform.

[0042] When the above technical solution is adopted, the film feeding device stores the solar cells to be torn off through the film loading mechanism, and the conveying bearing part of the conveying mechanism can be transmitted and moved under the film loading mechanism. The conveying mechanism moves up and down relative to the film loading mechanism, and a solar cell on the film loading mechanism is placed on the conveying bearing part of the conveying mechanism. The conveying mechanism drives the solar cell to be transported. After being transported to the vicinity of the adsorption positioning platform, the moving end of the transfer mechanism drives the pick-up and place mechanism to move, and the pick-up and place mechanism obtains the solar cell from the conveying bearing part and transfers it to above the adsorption positioning platform. The pick-up and place mechanism releases the solar cell to the adsorption positioning platform for adsorption and fixation.

[0043] In some possible implementations, the solar cell mask removal equipment further includes a heating device disposed on the adsorption positioning platform, for heating the solar cell located on the adsorption positioning platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0045] Figure 1 A schematic top view of a film feeding device of a solar cell mask removal device provided by an embodiment of the utility model;

[0046] Figure 2 for Figure 1 A schematic diagram of a front view of a film feeding device in FIG.

[0047] Figure 3 for Figure 1 A schematic diagram of the structure in which the sheet feeding device in the invention transfers the solar cell to the adsorption positioning platform;

[0048] Figure 4 for Figure 3 A schematic diagram of the main view;

[0049] Figure 5 A schematic cross-sectional view of an adsorption positioning platform provided in an embodiment of the utility model;

[0050] Figure 6 A schematic top view of another film feeding device provided in an embodiment of the utility model;

[0051] Figure 7 A schematic structural diagram of a film loading mechanism of a film feeding device provided in an embodiment of the utility model;

[0052] Figure 8 A schematic structural diagram of a film peeling device for a solar cell mask removal device provided by an embodiment of the utility model;

[0053] Fig. 9 A schematic diagram of a film-tearing process of a film-tearing device provided in an embodiment of the utility model;

[0054] Fig.10 A schematic diagram of a film-tearing process of another film-tearing device provided in an embodiment of the utility model;

[0055] Fig.11 A schematic structural diagram of a clamp for a film tearing device provided in an embodiment of the utility model;

[0056] Fig.12 A schematic diagram of the structure of another clamp provided in an embodiment of the utility model;

[0057] Fig.13 A schematic structural diagram of a waste film removing device provided in an embodiment of the utility model.

[0058] Figure numerals: 1 is a wafer carrier mechanism, 2 is a solar cell, 21 is a cell body, 22 is a flexible mask, 221 is an extension portion, 3 is an adsorption positioning platform, 31 is an avoidance groove, 32 is an adsorption hole, 4 is a conveying mechanism, 41 is a conveyor belt, 42 is a motor, 5 is a waste film removal device, 51 is a vacuum adsorption groove, 6 is a film tearing device, 61 is a clamping shaft, 62 is a sleeve, 621 is a through groove, 622 is a groove, and 63 is a clamp. DETAILED DESCRIPTION

[0059] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0060] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0061] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined. The meaning of "several" is one or more, unless otherwise clearly and specifically defined.

[0062] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0063] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0064] like Figure 1-Figure 12 As shown, the utility model provides a solar cell mask removal device, which is applied to a solar cell 2. The solar cell 2 includes a cell body 21 and a flexible mask 22 attached to at least one side of the cell body 21. The flexible mask 22 can be a polymer mask. The polymer mask is a composite structure, which is composed of a polymer film and an adhesive layer. The flexible mask 22 includes at least one extension 221 extending out of the cell body 21; the solar cell mask removal device includes an adsorption positioning platform 3 and a film tearing device 6; wherein, the upper surface of the adsorption positioning platform 3 is an adsorption positioning surface, on which adsorption holes 32 are provided, and negative pressure adsorption force is provided by a negative pressure device for adsorbing and fixing the solar cell 2. A positioning structure for positioning the four sides of the solar cell 2 can be provided on the adsorption positioning surface, so that after the solar cell 2 is fixed on the adsorption positioning surface, at least one extension 221 of the solar cell 2 is located outside the edge of the adsorption positioning platform 3. The film tearing device 6 is used to clamp at least one extension 221 of the flexible mask 22 and tear the flexible mask 22 from the cell body 21.

[0065] When the solar cell mask removal device is working, the adsorption hole 32 of the adsorption positioning platform 3 provides an adsorption negative pressure, and the solar cell 2 is adsorbed and fixed on the adsorption positioning platform 3, and the flexible mask 22 to be torn off faces upward. At this time, at least one extension 221 on the solar cell 2 is located outside the edge of the adsorption positioning platform 3. After that, the film tearing device 6 clamps at least one extension 221 located outside the edge of the adsorption positioning platform 3, and then the film tearing device 6 performs a film tearing operation, and the clamped extension 221 drives the entire flexible mask 22 to be peeled off from the cell body 21, completing the tearing of the flexible mask 22 on the solar cell 2. Compared with the existing chemical reagents to dissolve the mask, the solar cell mask removal device in this application does not have chemical hazards to the human body and is unfriendly to the environment, and the tearing process is simple, the film removal time is short, and the removal efficiency is high.

[0066] In addition, compared to the method of sticking tape to the mask and then tearing the film in other industries, as long as the flexible mask 22 has an extension portion 221 extending out of the battery cell body 21, the solar cell mask removal equipment in the present application can clamp the extension portion 221 to tear the film. There is no need to consider selecting different tape sticking methods for flexible masks with different patterns. The present application can be applicable to flexible masks 22 with different patterns. There is no need to consider the pattern and size of the flexible mask 22. It has strong versatility and only requires clamping and tearing operations. No tape is required. The film tearing process is simple and efficient, which reduces the cost of film tearing.

[0067] In this embodiment, the film-tearing device 6 includes a clamp, and the clamp has a clamping portion for clamping the extension portion 221. In addition, the film-tearing device 6 may also include a displacement mechanism, and the clamp is arranged on the displacement mechanism. The displacement mechanism can drive the clamp to move in the front and back, left and right, or up and down directions, and can also drive the clamp to rotate, so as to realize the movement of the clamp relative to the adsorption positioning platform 3, and complete the film-tearing action of the flexible mask 22. In this way, the extension portion 221 of the flexible mask 22 is clamped by the clamping portion of the clamp, and the clamping operation is convenient. Of course, the film-tearing device can also be moved by manually driving the clamp.

[0068] As an implementation method, Figure 8-Figure 10As shown, the clamp includes a clamp shaft 61, which can rotate around its axis. The clamp shaft 61 is surrounded by at least two clamping blocks arranged along the circumference. Adjacent clamping blocks can be close to or away from each other to form a clamping portion for clamping the extension portion 221. For example, the clamp shaft 61 can be composed of two semi-cylindrical clamping blocks, and the plane sides of the two semi-cylindrical clamping blocks are arranged oppositely to form a clamping portion that can be clamped on both sides; or the clamp shaft 61 can be surrounded by three, four or more fan-shaped cross-section clamping blocks arranged along the circumference, and a clamping portion is formed between each two adjacent clamping blocks, so that the clamp shaft can have multiple clamping portions that can be clamped. The plane sides of adjacent clamping blocks are away from each other, so that the clamping portion is open, and the plane sides of adjacent clamping blocks are close to each other, so that the clamping portion is closed.

[0069] like Fig. 9 As shown, taking the clamping shaft 61 composed of two semi-cylindrical clamping blocks as an example, the operation process of tearing the film using the clamping shaft 61 is described:

[0070] Initially, the planar sides of the two clamps are placed horizontally, and the planar sides of the two clamps are away from each other. The clamping part is opened and approaches the extension part 221 of the solar cell 2, so that the extension part 221 extends between the two clamps. After that, the planar sides of the two clamps are close to each other, the extension part 221 is clamped, and then the clamping shaft 61 is rotated 90° around its winding axis in a first rotation direction. The first rotation direction is to move the extension part 221 away from the battery cell body 21. After that, the clamping shaft 61 moves a certain height in the vertical direction away from the solar cell 2, and then continues to rotate around its winding axis in the first rotation direction. At the same time, the clamping shaft 61 and the adsorption positioning platform 3 undergo horizontal relative movement until the flexible mask 22 on the solar cell 2 is completely wrapped around the outer peripheral surface of the clamping shaft 61, and the film tearing is completed.

[0071] like Fig.10 As shown, taking the clamping shaft 61 composed of two semi-cylindrical clamping blocks as an example, another operation process of tearing the film using the clamping shaft 61 is described:

[0072] Initially, the plane sides of the two clamps are placed horizontally, the plane sides of the two clamps are away from each other, the clamping part is opened, and the extension part 221 of the solar cell 2 is approached, so that the extension part 221 extends between the two clamps, and then the plane sides of the two clamps are close to each other, the extension part 221 is clamped, and then the clamping shaft 61 rotates 90° around its winding axis in the first rotation direction, and then the clamping shaft 61 moves a certain height in the vertical direction away from the solar cell 2, and then continues to rotate around its winding axis in the second rotation direction opposite to the first rotation direction. At the same time, the clamping shaft 61 and the adsorption positioning platform 3 undergo horizontal relative movement until the flexible mask 22 on the solar cell 2 is completely wrapped around the outer peripheral surface of the clamping shaft 61, and the film tearing is completed. This film tearing process can prevent the clamping shaft 61 from pulling off the extension part 221 when the clamping extension part 221 begins to tear the film.

[0073] like Fig.11 As shown, as another embodiment, the clamp may also include a sleeve 62, a driving mechanism, and one or more clips 63 arranged in sequence along the axis of the sleeve 62. The sleeve 62 can rotate around its axis. A through slot 621 is provided on the tube wall of the sleeve 62. The through slot 621 communicates the inside and outside of the sleeve 62. The through slot 621 may penetrate the entire tube wall along the axis of the sleeve 62, or the through slots 621 may be provided at intervals on the tube wall corresponding to the position of each clip 63. The clip 63 and the driving mechanism are fixed in the sleeve 62 and can rotate with the sleeve 62. One end of the clip 63 has a clamping portion that can be opened and closed, the clamping portion is aligned with the through slot 621, and the clamping portion may extend or not extend from the through slot 621. The other end of the clip 63 has a pressing portion for applying a pressing force. The clip 63 is used to clamp one or more extensions 221. The driving mechanism is used to apply a pressing force to the pressing portion of the clip 63 to open the clip 63.

[0074] The working principle of the clamp is as follows: the driving mechanism applies pressing force to the pressure-applying part of the clamp 63, so that the clamping end of the clamp 63 opens. After the extension part 221 is placed in the opened clamping end, the driving mechanism releases the pressure on the pressure-applying part, and the clamping end clamps the extension part 221. As the clamp moves relative to the adsorption positioning platform 3, the flexible mask 22 is torn off the battery cell body 21 and wound on the sleeve 62. By setting a separate clamp 63, the opening and closing of the clamping end of the clamp 63 can be independently controlled. Compared with the method in which the clamp is a clamping shaft 61, when the flexible mask 22 is wrapped around the outside of the clamping shaft 61, the clamping portion of the clamping shaft 61 is difficult to open again. In this way, it is necessary to first use a stripping device to remove the waste film on the outside of the clamping shaft 61 and then use a scraping device and / or a blowing device to remove the waste film remaining in the clamping portion. The operation process is cumbersome. By setting the clamp 63 in the sleeve 62, when the waste film is wrapped around the outside of the sleeve 62, since the opening and closing space of the clamp 63 is not limited by the wrapped waste film, the clamp 63 can be opened in the wrapped state and remain in the open state. In this way, only a stripping device is needed to remove all the waste film, and there is no need to additionally set up a scraping device and / or a blowing device, which facilitates the subsequent removal of the flexible mask 22 wrapped around the sleeve 62.

[0075] The film-tearing process of the clamp can refer to the film-tearing process of the clamp shaft 61, and will not be described in detail here.

[0076] In some embodiments, the clamp may also include only one or more clamps, and the multiple clamps are arranged in sequence along a straight line, and one end of the clamp is a clamping portion. When the number of the clamps is one, the shape and size of the clamp can meet the clamping of all the extensions. When the number of the clamps is multiple, each clamp may clamp one extension, or each clamp in a part of the clamps may clamp multiple extensions 221, and each clamp in another part of the clamps may clamp one extension 221. After clamping the extension 221, the clamp may pull the extension 221 to move in the direction in which the flexible mask 22 is torn off until all the flexible masks 22 are removed from the battery cell body 21.

[0077] like Fig.13 As shown, in some embodiments, the solar cell mask removal device further includes a waste film removal device 5, which is used to remove the flexible mask 22 torn off by the film tearing device 6 from the film tearing device 6. In this way, the removal of the waste film on the film tearing device 6 is facilitated to continue the film tearing operation of other solar cells 2.

[0078] Exemplarily, in the case where the film tearing device 6 includes a clamp, the waste film removing device 5 includes a vacuum adsorption mechanism, which has a vacuum adsorption groove 51. The vacuum adsorption groove 51 is used to adsorb the flexible mask 22 that is torn off and wound on the clamp. After adsorbing the flexible mask 22, the vacuum adsorption mechanism removes the flexible mask 22 from the clamp. Specifically, the vacuum adsorption mechanism can be driven to move by a separate moving mechanism, or it can be manually driven to move.

[0079] In specific operation, after the clamp tears off the flexible mask 22 and winds it on the clamp, the clamp can be moved away from the top of the adsorption positioning platform 3 to avoid contamination or damage to the battery cell body 21 below. After that, the waste film removal device 5 drives the vacuum adsorption mechanism to approach the clamp through the moving mechanism, starts the vacuum adsorption mechanism, forms a negative pressure adsorption force in the vacuum adsorption groove 51, and adsorbs the flexible mask 22 wound on the clamp into the vacuum adsorption groove 51, and removes the flexible mask 22 from the clamp by the adsorption force. The vacuum adsorption mechanism can only act on the flexible mask 22, and will not apply force to the clamp, causing accidental damage to the clamp.

[0080] Exemplarily, another waste film removal device 5 may include a clamping mechanism, which is used to clamp the flexible mask 22 wound on the fixture and remove it from the fixture. After the clamping mechanism clamps the flexible mask 22, the flexible mask 22 is removed from the fixture. Specifically, the clamping mechanism can be driven to move by a separate moving mechanism, or the clamping mechanism can be manually driven to move. The clamping mechanism can be a mechanism such as a clamping claw, a clamping shaft, or a clamp, as long as it can clamp the flexible mask 22, and it is not limited here. The waste film removal operation of the clamping mechanism refers to the moving operation of the vacuum adsorption mechanism, and will not be repeated here. The clamping mechanism can improve the grip of the flexible mask 22, which is conducive to removing the waste film from the fixture faster.

[0081] In some possible implementations, the solar cell mask removal device further includes a stripping device, which is used to strip the flexible mask 22 torn off by the film stripping device 6 from the film stripping device 6. In this way, it is convenient to strip the waste film on the film stripping device 6 so as to continue the film stripping operation of other solar cells 2.

[0082] Exemplarily, in the case where the film-tearing device 6 includes a clamp, the clamp may be in the form of a clamp shaft 61 or a sleeve 62 or a clamp 63. The stripping device includes a stripping component and a driving component; wherein the stripping component has a stripping surface that matches the shape of the outer peripheral surface of the clamp, and for example, the stripping component may be an arc-shaped plate having an arc-shaped stripping surface that matches the outer peripheral surface of the clamp or the sleeve, so as to increase the pushing contact area between the stripping component and the flexible mask 22. During operation, the distance between the stripping surface and the outer peripheral surface of the clamp is greater than or equal to 0 and less than or equal to the thickness of the flexible mask 22, and the stripping component may move relative to the clamp along the winding axis of the clamp, so as to push the flexible mask 22 wound on the clamp to be stripped from the clamp; the driving end of the driving component is connected to the stripping component, and the driving component is used to drive the stripping component to move relative to the winding axis of the clamp, and the driving component is independently arranged outside the film-tearing device, and can drive the stripping component to move independently, and the driving component may be a linear moving module or a manipulator, etc.

[0083] When the stripping device is working, the driving component drives the stripping surface of the stripping component to approach the clamp and move from one end of the clamp to the other end along the winding axis of the clamp. During the movement, since the stripping surface of the stripping component matches the shape of the outer peripheral surface of the clamp and the distance between the two is less than or equal to the thickness of the flexible mask 22, the stripping component can push the flexible mask 22 wound on the outer peripheral surface of the clamp down along the winding axis of the clamp, or use the friction between the stripping surface and the flexible mask 22 to push the flexible mask 22 down from the clamp along the axis to complete the stripping of the flexible mask 22. The stripping device can strip the flexible mask 22 on the clamp more completely.

[0084] like Fig.12 As shown, further, in this embodiment, in order to facilitate the stripping device to strip the flexible mask 22 from the clamp, the outer peripheral surface of the clamp is provided with one or more grooves 622 arranged in the circumferential direction and extending along the winding axis of the clamp through the two ends of the clamp. For example, when the clamp is a clamp shaft 61, the outer peripheral surface of the clamp shaft 61 is provided with grooves that pass through the two ends of the clamp shaft 61, and when the clamp includes a sleeve 62, the outer peripheral surface of the sleeve 62 is provided with grooves 622 that pass through the two ends of the sleeve 62. Correspondingly, the stripping surface of the stripping component is provided with a protruding structure that matches the groove 622, and the protruding structure can be embedded in the groove 622.

[0085] During operation, since the clamp has a groove 622, the flexible mask 22 wound on the outer surface of the clamp is wrapped around the non-groove part of the clamp, and a recessed space is formed between the groove part and the flexible mask 22. Then, the protruding structure of the stripping component is embedded from one end of the groove 622. As the driving component drives the stripping component to move relative to the winding axis of the clamp, the end plane of the protruding structure can directly push the outer edge of the flexible mask 22 corresponding to the groove part, and it is not easy for the stripping component and the flexible mask 22 to break away from the pushing contact.

[0086] In some embodiments, the solar cell mask removal device further includes a scraping device and / or a blowing device, wherein the scraping device is used to scrape the flexible mask 22 remaining between the clamps; the blowing device is used to blow away the flexible mask 22 remaining between the clamps.

[0087] During operation, in the process of peeling off the flexible mask 22 on the clamping shaft 61 by the waste film removing device 5 and the peeling device, since the clamping blocks of the clamping shaft 61 are in a state of being close to each other and clamped, after peeling off the flexible mask 22, part of it will remain between the clamping blocks. Therefore, after the clamping blocks are opened away from each other, the flexible mask 22 remaining between the clamping blocks is scraped off by the scraping device along one end of the clamping shaft 61 to the other end, and / or the remaining flexible mask 22 is cleaned by the blowing device along one end of the clamping shaft 61 to the other end. If both the scraping device and the blowing device are included, after the scraping device scrapes off the remaining flexible mask 22 in the clamping block, the blowing device is controlled to blow air.

[0088] In some possible implementations, the solar cell mask removal device further includes a sheet feeding device for conveying the solar cell 2 to the adsorption positioning platform 3. In this way, by transferring the solar cell 2 through the sheet feeding device, manpower can be saved and the risk of damage to the solar cell 2 due to errors in the manual transfer process can be reduced.

[0089] This embodiment provides a specific film feeding device, which includes a film carrier mechanism 1, a transfer mechanism and a pick-and-place mechanism; wherein the film carrier mechanism 1 can be a flower basket, used to carry at least one solar cell 2, and multiple solar cells 2 are arranged in sequence along the vertical direction and supported on the flower basket, and the solar cell 2 is placed horizontally, and the flower basket only supports two opposite edge positions of the solar cell 2, and the middle position is suspended. The transfer mechanism can be a manipulator or a mobile mechanism that can move forward and backward, left and right, and up and down, and is used to transfer the solar cell 2 from the film carrier mechanism 1 to the adsorption positioning platform 3; the pick-and-place mechanism is arranged at the mobile end of the transfer mechanism, and the pick-and-place mechanism can be a clamping mechanism or a grasping mechanism or an adsorption mechanism, and the pick-and-place mechanism is used to obtain the solar cell 2 from the film carrier mechanism 1 and release the solar cell 2 to the adsorption positioning platform 3.

[0090] When the film feeding device is working, the solar cell 2 to be torn off is stored through the film loading mechanism 1, and the moving end of the transfer mechanism drives the pick-up and placement mechanism to move. After the solar cell is obtained from the film loading mechanism 1 by the pick-up and placement mechanism, the transfer mechanism drives the pick-up and placement mechanism and the obtained solar cell 2 to the adsorption positioning platform 3. After that, the pick-up and placement mechanism releases the solar cell 2 onto the adsorption positioning platform 3, completing the transportation of the solar cell 2 to the adsorption positioning platform 3. The film feeding process is simple and reliable.

[0091] like Figure 1-Figure 5 As shown, the present embodiment provides another film feeding device, which includes a film loading mechanism 1 and a conveying mechanism 4; wherein the film loading mechanism 1 can be a flower basket for carrying at least one solar cell 2, and the carrying method is the same as that of the previous film feeding device, which will not be repeated; the conveying mechanism 4 has a conveying bearing part for carrying the solar cell 2, and the conveying path of the conveying bearing part passes through the film loading mechanism 1 and the adsorption positioning platform 3, and the conveying bearing part is located below the film loading mechanism 1 and above the adsorption positioning platform 3, and the conveying mechanism 4 and the film loading mechanism 1 as well as the conveying mechanism 4 and the adsorption positioning platform 3 can all move up and down relatively, and an avoidance groove 31 for avoiding the conveying bearing part is provided on the adsorption positioning surface of the adsorption positioning platform 3, and the depth of the avoidance groove 31 is greater than or equal to the thickness of the conveying bearing part.

[0092] For example, the conveying mechanism 4 may include a conveyor belt 41, a pulley and a motor 42. The pulley is connected to the conveyor belt 41. The motor 42 drives the pulley to rotate, thereby driving the conveyor belt 41 to reciprocate. The conveyor belt 41 serves as a conveying bearing part. The conveyor belt 41 may be a narrow conveyor belt. In order to ensure the stability of the transmission, at least two parallel narrow conveyor belts are required to carry the solar cells 2. Accordingly, the number and position of the avoidance grooves 31 are the same as the number and position of the parallel narrow conveyor belts. Of course, the conveyor belt 41 may also be a wide conveyor belt. The width of the wide conveyor belt is greater than or equal to the width of the solar cell 2. Then, the solar cell 2 can be carried by a wide conveyor belt. Accordingly, the avoidance groove 31 may be only one to accommodate the wide conveyor belt. Along the transmission direction of the conveying mechanism 4, one or more sections of the conveying mechanism 4 may be arranged, as long as the transmission of the solar cell 2 can be achieved. Of course, the transmission mechanism 4 can also adopt the transmission form of chain, sprocket and motor. The chain is connected to the sprocket by transmission, and the motor drives the sprocket to rotate, thereby driving the chain to move back and forth. The chain serves as a transmission bearing part, and the avoidance groove 31 can accommodate the chain.

[0093] The working process of the film feeding device is as follows: Figure 1 and Figure 2As shown, at the beginning, the conveying bearing part of the conveying mechanism 4, such as the conveyor belt 41, has an upper surface higher than the adsorption positioning surface of the adsorption positioning platform 3, so that the conveyor belt 41 does not contact the adsorption positioning surface, and the motor 42 drives the pulley close to the flower basket to move linearly toward the flower basket until it moves to below the bottom layer of solar cells 2 in the flower basket, and then the flower basket is controlled to move downward so that the bottom layer of solar cells 2 falls on the conveyor belt 41, and then the pulley rotates to make the solar cells 2 on the conveyor belt 41 move in a direction away from the flower basket, that is, move in a direction close to the adsorption positioning platform 3, until it moves above the adsorption positioning platform 3, and then the conveyor belt 41 stops moving, as shown in FIG. Figure 3 The conveyor belt 41 and the adsorption positioning platform 3 move up and down relatively, so that the conveyor belt 41 is embedded in the avoidance groove 31 on the adsorption positioning platform 3, so that the solar cell 2 contacts the adsorption positioning platform 3, as shown Figure 4 As shown, the transfer of the solar cell 2 from the wafer carrier 1 to the adsorption positioning platform 3 is completed. The relative up and down movement of the conveyor belt 41 and the adsorption positioning platform 3 includes: the conveyor belt 41 moves downward, or the adsorption positioning platform 3 moves upward, or the conveyor belt 41 moves downward and the adsorption positioning platform 3 moves upward at the same time.

[0094] After the flexible mask 22 of the solar cell 2 is removed, the adsorption positioning platform 3 can be released. At this time, the conveyor belt 41 and the adsorption positioning platform 3 located in the avoidance groove 31 of the adsorption positioning platform 3 move up and down relative to each other, so that the conveyor belt 41 is separated from the adsorption positioning platform 3 and contacts with the battery cell body 21 with the flexible mask 22 removed. Driven by the motor 42, the pulley rotates to drive the conveyor belt 41 to move in the direction of outputting the battery cell body 21, so as to output the battery cell body 21 with the flexible mask 22 removed to the set position for collection.

[0095] Optionally, the belt wheel close to the flower basket can be reset to the initial position when there is no need to transport the solar cell 2, that is, the belt wheel close to the flower basket is controlled to move linearly to the initial position in the direction away from the flower basket.

[0096] Furthermore, in some embodiments, the solar cell mask removing device further includes a waste box, which is placed near the film tearing device 6 and is used to collect the removed flexible mask 22 .

[0097] like Figure 6As shown, this embodiment provides another film feeding device, which includes a film carrier mechanism 1, a conveying mechanism 4, a transfer mechanism and a pick-and-place mechanism; wherein the film carrier mechanism 1 can be a flower basket for carrying at least one solar cell 2; the conveying mechanism 4 has a conveying bearing part for carrying the solar cell 2, the conveying path of the conveying bearing part passes through the film carrier mechanism 1, the conveying bearing part is located below the film carrier mechanism 1, and the conveying mechanism 4 and the film carrier mechanism 1 can move up and down relatively. The transfer mechanism is used to transfer the solar cell 2 from the conveying bearing part to the adsorption positioning platform 3. The pick-and-place mechanism is arranged at the mobile end of the transfer mechanism, and the pick-and-place mechanism is used to obtain the solar cell 2 from the conveying bearing part and release the solar cell 2 to the adsorption positioning platform 3.

[0098] For example, the conveying mechanism 4 may include a conveyor belt 41, a conveyor chain or a conveyor roller, etc., as long as the solar cell can be conveyed. The conveying mechanism 4 may have one or more sections, which may be arranged according to the arrangement positions of the adsorption positioning platform 3 and the wafer carrier mechanism 1. The transfer mechanism may be a manipulator, and a corresponding number of manipulators are arranged according to the number of conveying mechanisms 4. The pick-and-place mechanism may be a clamping mechanism or an adsorption mechanism. For example, Figure 6 As shown, the conveying mechanism 4 has two sections with conveying directions perpendicular to each other. The first section of the conveying mechanism passes through the wafer carrier mechanism 1, and the second section of the conveying mechanism is butted end to end with the first section of the conveying mechanism. The conveying direction of the second section of the conveying mechanism is parallel to the arrangement direction of the multiple adsorption positioning platforms 3. A first manipulator is arranged corresponding to the first section of the conveying mechanism, and a second manipulator is arranged corresponding to the second section of the conveying mechanism. The adsorption mechanism can be a vacuum suction cup or a vacuum suction nozzle.

[0099] When working, Figure 6 As shown, the solar cell 2 in the flower basket is first placed on the first conveying mechanism through the cooperation of the flower basket and the first conveying mechanism. The solar cell 2 on the first conveying mechanism gradually approaches the second conveying mechanism as the first conveying mechanism moves. When the solar cell 2 at the front moves to the output end of the first conveying mechanism, the first manipulator adsorbs the solar cell 2 and rotates 90°, and then places it on the input end of the second conveying mechanism. At this time, the second manipulator adsorbs the solar cell 2 on the second conveying mechanism and places it on the corresponding adsorption positioning platform 3, completing the continuous transfer of the solar cell 2 from the film carrier mechanism 1 to the adsorption positioning platform 3. The film tearing operation can be performed on multiple solar cells 2 at the same time, which improves the work efficiency. In this structural design, there is no need to set an avoidance groove on the adsorption positioning platform 3.

[0100] In some possible implementations, the solar cell mask removal device further includes a heating device disposed on the adsorption positioning platform 3, which is used to heat the solar cell located on the adsorption positioning platform 3. Since the flexible mask 22 is bonded to the cell body 21 through the adhesive layer, heating the solar cell 2 by the heating device can reduce the adhesive force between the flexible mask 22 and the cell body 21, which is more conducive to the removal of the flexible mask 22 and reduces damage to the cell body 21.

[0101] For example, the heating device may include a resistance heating device, an oil heating device and / or a radiation heating device, wherein the radiation heating device may specifically be an infrared heating device.

[0102] In some embodiments, the solar cell mask removal device further includes a cell detection device, which is used to detect the residual flexible mask 22 on the cell body 21 after the flexible mask 22 is removed.

[0103] After the flexible mask 22 is removed from the solar cell 2, the manipulator disposed near the adsorption positioning platform 3 transfers the cell body 21 after the film is removed to the cell inspection device to inspect the quality of the cell body 21, so as to remove defective products and output good products. Exemplarily, the cell inspection device includes a belt and a CCD camera, and the CCD camera is disposed above the end of the belt away from the adsorption positioning platform 3. The manipulator can transfer the cell body 21 after the film is removed to the belt, and as the belt moves, the cell body 21 is driven to move under the CCD camera. Through the image detection of the CCD camera, the defective cell bodies are screened out and transferred to the defective box by the manipulator, and the good cell bodies are collected in the basket. Exemplarily, the CCD camera can inspect a single or multiple cell bodies 21 at a time.

[0104] In the description of the above embodiments, specific features, structures, materials or characteristics may be combined in a suitable manner in any one or more embodiments or examples.

[0105] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A solar cell mask removal device, characterized in that: Applied to a solar cell, the solar cell comprises a cell body and a flexible mask adhered to at least one side of the cell body, the flexible mask comprises at least one extension portion extending out of the cell body; The solar cell mask removal device comprises: An adsorption positioning platform, used for adsorbing and fixing the solar cell so that at least one extension portion of the solar cell is located outside the edge of the adsorption positioning platform; The film tearing device is used to clamp at least one of the extension portions of the flexible mask and tear the flexible mask off the battery cell body.

2. The solar cell mask removal device according to claim 1, characterized in that: The film tearing device comprises a clamp having a clamping portion for clamping the extension portion.

3. The solar cell mask removal device according to claim 2, characterized in that: The clamp comprises a clamp shaft, which can rotate around its axis, and is surrounded by at least two clamp blocks arranged along a circumference, and adjacent clamp blocks can be close to or away from each other to form a clamping portion for clamping the extension portion; Alternatively, the clamp includes a sleeve, a driving mechanism and one or more clamps arranged in sequence along the axis of the sleeve, the sleeve can rotate around its axis, the tube wall of the sleeve is provided with a through groove, the clamp and the driving mechanism are fixed in the sleeve, one end of the clamp has an openable and closable clamping portion, the clamping portion is aligned with the through groove, the other end of the clamp has a pressure applying portion for applying pressing force, the clamp is used to clamp one or more of the extensions, and the driving mechanism is used to apply pressing force to the pressure applying portion of the clamp.

4. The solar cell mask removal device according to claim 1, characterized in that: The solar cell mask removal device further comprises a waste film removing device, wherein the waste film removing device is used to remove the flexible mask torn off by the film tearing device from the film tearing device.

5. The solar cell mask removal device according to claim 4, characterized in that: The film tearing device comprises a clamp having a clamping portion for clamping the extension portion; The waste film removing device comprises a vacuum adsorption mechanism, wherein the vacuum adsorption mechanism has a vacuum adsorption groove, and the vacuum adsorption groove is used to adsorb the flexible mask wound on the clamp; Alternatively, the waste film removing device comprises a clamping mechanism, and the clamping mechanism is used to clamp the flexible mask wound on the clamp and remove it from the clamp.

6. The solar cell mask removal device according to claim 1, characterized in that: The solar cell mask removal device further comprises a stripping device, which is used to strip the flexible mask torn off by the film stripping device from the film stripping device.

7. The solar cell mask removal device according to claim 6, characterized in that: The film tearing device comprises a clamp having a clamping portion for clamping the extension portion; The stripping device comprises: a peeling component, wherein the peeling component has a peeling surface that matches the shape of the outer peripheral surface of the clamp, the distance between the peeling surface and the outer peripheral surface of the clamp is greater than or equal to 0 and less than or equal to the thickness of the flexible mask, and the peeling component can move relative to the clamp along the winding axis of the clamp to push the flexible mask wound on the clamp to be peeled off from the clamp; A driving component, a driving end of which is connected to the stripping component, and the driving component is used to drive the stripping component to move relative to the winding axis of the clamp.

8. The solar cell mask removal device according to claim 3, characterized in that: The solar cell mask removal device also includes: A scraping device, the scraping device is used to scrape the flexible mask remaining between the clamping blocks; And / or, a purging device, wherein the purging device is used to purge the flexible mask remaining between the clamping blocks.

9. The solar cell mask removal device according to any one of claims 1 to 8, characterized in that: It also includes a sheet feeding device for conveying the solar cell to the adsorption positioning platform.

10. The solar cell mask removal device according to claim 9, characterized in that: The film feeding device comprises: A wafer carrier mechanism, used for carrying at least one of the solar cells; A transfer mechanism, used for transferring the solar cell from the wafer carrier mechanism to the adsorption positioning platform; A pick-and-place mechanism is arranged at the moving end of the transfer mechanism, and is used to obtain the solar cell from the carrier mechanism and release the solar cell to the adsorption positioning platform.

11. The solar cell mask removal device according to claim 9, characterized in that: The film feeding device comprises: A wafer carrier mechanism, used for carrying at least one of the solar cells; A conveying mechanism, wherein the conveying mechanism has a conveying bearing part for bearing the solar cell, the conveying path of the conveying bearing part passes through the carrier mechanism and the adsorption positioning platform, the conveying bearing part is located below the carrier mechanism and above the adsorption positioning platform, the conveying mechanism and the carrier mechanism as well as the conveying mechanism and the adsorption positioning platform can all move up and down relatively, and an avoidance groove for avoiding the conveying bearing part is provided on the adsorption surface of the adsorption positioning platform, and the depth of the avoidance groove is greater than or equal to the thickness of the conveying bearing part.

12. The solar cell mask removal device according to claim 9, characterized in that: The film feeding device comprises: A wafer carrier mechanism, used for carrying at least one of the solar cells; A conveying mechanism, wherein the conveying mechanism has a conveying bearing part for bearing the solar cell, a conveying path of the conveying bearing part passes through the wafer carrier mechanism, the conveying bearing part is located below the wafer carrier mechanism, and the conveying mechanism and the wafer carrier mechanism can move up and down relatively; A transfer mechanism, used for transferring the solar cell from the conveying and carrying portion to the adsorption and positioning platform; A pick-and-place mechanism is arranged at the moving end of the transfer mechanism, and the pick-and-place mechanism is used to obtain the solar cell from the conveying bearing part and release the solar cell to the adsorption positioning platform.

13. The solar cell mask removal device according to claim 1, characterized in that: The solar cell mask removal equipment further comprises a heating device disposed on the adsorption positioning platform, which is used to heat the solar cell located on the adsorption positioning platform.

Images