Discharging assembly and film layer preparation device

Abstract

The utility model relates to the technical field of semiconductors and photovoltaic cells, in particular to a blanking assembly and a film layer preparation device, and solves the problem that a film layer on the surface of a product is easily damaged by the blanking assembly. The discharging assembly is configured to receive and transport a product, a film layer is attached to the lower surface of the product, and the lower surface of the product is provided with a first end and a second end which are opposite to each other; wherein the discharging assembly comprises a transmission assembly, a discharging assembly and a discharging assembly, and the transmission assembly is configured to bear the first end of the product and the second end of the product; and the driving assembly is connected with the transmission assembly and is configured to drive the transmission assembly to move, so that the transmission assembly receives and transports the product, contact with other areas of the lower surface of the product is avoided, and damage to a film layer of the lower surface of the product is reduced.

Description

Technical Field

[0001] This application relates to the technical fields of semiconductors and photovoltaic cells, and particularly to a blanking component and a film layer preparation device. Background Art

[0002] Perovskite solar cells have advantages such as high absorption of visible light and rapid improvement in photoelectric conversion efficiency. Preparing a perovskite solar cell requires preparing a perovskite film layer on a silicon wafer. Currently, methods for preparing a perovskite film layer include evaporation coating, blade coating, slot coating, screen printing, spraying, inkjet printing, and other methods.

[0003] After a product is prepared with a perovskite film layer, a blanking component is needed to blank the product, and the perovskite film layer on the surface of the product is easily damaged by the blanking component. Summary of the Utility Model

[0004] In view of this, an embodiment of this application provides a blanking component and a film layer preparation device to solve the problem that the film layer on the surface of the product is easily damaged by the blanking component.

[0005] In a first aspect, an embodiment of this application provides a blanking component configured to receive and transport a product, with a film layer attached to the lower surface of the product, and the lower surface of the product having opposite first and second ends; wherein, the blanking component includes: a transmission component configured to carry the first end and the second end of the product; and a driving component connected to the transmission component and configured to drive the transmission component to move so that the transmission component receives and transports the product.

[0006] In combination with the first aspect, in some implementation manners of the first aspect, the transmission component includes: a plurality of blanking rollers arranged in sequence along a first direction, the blanking rollers being capable of self-rotation and configured to carry the product and transport the product through self-rotation, the first direction being the transmission direction of the product; wherein, the blanking roller includes: two bearing sections respectively configured to carry the first end and the second end of the product; and a connecting section connecting the two bearing sections, the diameter of the connecting section being smaller than the diameter of the bearing section.

[0007] In combination with the first aspect, in some implementation manners of the first aspect, the two bearing sections are respectively in line contact or point contact with the first end and the second end of the product.

[0008] In combination with the first aspect, in some implementation manners of the first aspect, along the direction from the bearing section to the connecting section, the diameter of the bearing section gradually decreases.

[0009] In combination with the first aspect, in certain implementations of the first aspect, in the axial cross-section of the blanking roller, the shape of the bearing section includes a trapezoid, the shape of the connecting section includes a rectangle, the upper base of the trapezoid coincides with one side of the rectangle, and the size of the upper base of the trapezoid is smaller than the size of the lower base of the trapezoid.

[0010] In combination with the first aspect, in certain implementations of the first aspect, the driving assembly includes: a servo motor, connected to the transmission assembly and configured to drive the transmission assembly to move so that the transmission assembly receives and transports the product.

[0011] In combination with the first aspect, in certain implementations of the first aspect, the film layer attached to the lower surface of the product is a perovskite film layer.

[0012] In a second aspect, an embodiment of the present application provides a film layer preparation device, including: a process roller, with a solution attached to the upper surface of the process roller, and the solution can be attached to the lower surface of the product through the rolling of the process roller to form a film layer on the lower surface of the product. The lower surface of the product has opposite first and second ends; the blanking assembly according to the first aspect, configured to bear the first end and the second end of the product and transport the product.

[0013] In combination with the second aspect, in certain implementations of the second aspect, the film layer preparation device further includes: a drying assembly, arranged adjacent to the process roller and configured to provide heat energy to the process roller.

[0014] In combination with the second aspect, in certain implementations of the second aspect, the film layer preparation device further includes: a housing, having an accommodation space and an air inlet and an air outlet communicating with the accommodation space. The process roller and the blanking assembly are both arranged in the accommodation space, and the product can be placed in the accommodation space; wherein, impurity gases can flow out of the accommodation space through the air outlet, and inert gases can flow into the accommodation space through the air inlet.

[0015] The blanking assembly provided by the embodiments of the present application uses the transmission assembly to bear the first end and the second end of the product, avoiding contact with other areas of the lower surface of the product and reducing damage to the film layer on the lower surface of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] By describing the embodiments of the present application in more detail in combination with the drawings, the above and other objects, features and advantages of the present application will become more obvious. The drawings are used to provide a further understanding of the embodiments of the present application and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the present application and do not constitute a limitation to the present application. In the drawings, the same reference numerals generally represent the same components or steps.

[0017] Figure 1 The following is a schematic structural diagram of a film layer preparation device provided by an embodiment of the present application.

[0018] Figure 2 The following is a schematic structural diagram of a blanking component provided by an embodiment of the present application.

[0019] Figure 3 The following is provided by an embodiment of the present application Figure 3 An enlarged view of the blanking component shown in the A area.

[0020] Figure 4 The following is provided by another embodiment of the present application Figure 3 An enlarged view of the blanking component shown in the A area.

[0021] Figure 5 The following is a schematic structural diagram of a blanking component provided by another embodiment of the present application.

[0022] Figure 6 The following is provided by an embodiment of the present application Figure 5 An enlarged view of the blanking component shown in the B area.

[0023] Figure 7 The following is a schematic structural diagram of a blanking component provided by another embodiment of the present application.

[0024] Figure 8 The following is provided by an embodiment of the present application Figure 7 An enlarged view of the blanking component shown in the C area.

[0025] Reference numerals:

[0026] 1. Film layer preparation device; 10. Process roller; 11. Attachment surface; 20. First container; 21. First accommodation chamber; 22. First opening; 40. Loading component; 41. Loading roller; 42. Transition roller; 50. Blanking component; 510. Transmission component; 51. Blanking roller; 511. Loading section; 5111. Flange; 512. Connection section; 520. Driving component; 60. Drying component; 70. Housing; 71. Accommodation space; 72. Air inlet; 73. Air outlet; 80. Support component; 90. Process roller driving component; 2. Product; 201. First surface; 203. First end; 204. Second end; 3. Solution; X. First direction. Detailed implementation manners

[0027] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0028] Figure 1 The following is a schematic structural diagram of a film layer preparation device provided by an embodiment of the present application. Figure 2 The following is a schematic structural diagram of a blanking component provided by an embodiment of the present application. Figure 3 The following is provided by an embodiment of the present application Figure 3 An enlarged view of the blanking component shown in the A area. As Figures 1 to 3 As shown, the blanking component 50 is configured to receive and transport the product 2. A film layer is attached to the lower surface of the product 2. The lower surface of the product 2 has opposite first end 203 and second end 204. The blanking component 50 includes a transmission component 510 and a driving component 520. The transmission component 510 is configured to carry the first end 203 and the second end 204 of the product 2. The driving component 520 is connected to the transmission component 510 and is configured to drive the transmission component 510 to move so that the transmission component 510 receives and transports the product 2.

[0029] Exemplarily, the product 2 may be a substrate for preparing a perovskite battery. Exemplarily, the product 2 may be a sheet structure, such as a silicon wafer, a glass substrate, a wafer, etc. Exemplarily, the size of the product 2 may be 210mm x 210mm. The product 2 may also be a block structure or a strip structure, which is not specifically limited in the present application. Exemplarily, the film layer attached to the lower surface of the product 2 may be a perovskite film layer. The lower surface of the product 2 includes a first surface 201, and the perovskite film layer covers the first surface 201.

[0030] Using the transmission component 510 to carry the first end 203 and the second end 204 of the product 2 avoids contact with other areas of the lower surface of the product 2 and reduces damage to the film layer on the lower surface of the product 2.

[0031] Exemplarily, as Figure 2 and Figure 3 shown, the first end 203 and the second end 204 of the product 2 are located at the edge of the product 2, avoiding contact between the transmission component 510 and the middle area of the product 2. The first surface 201 may be located in the middle area of the product 2.

[0032] Exemplarily, the transmission component 510 may be a belt drive, a chain drive, a gear drive, a screw-nut drive, etc., which is not specifically limited in the present application.

[0033] Exemplarily, the transmission assembly 510 includes a support member, a plurality of transmission wheels, and at least two transmission belts. The plurality of transmission wheels are rotatably connected to the support member, and the transmission belts are sleeved on the plurality of transmission wheels. The two transmission belts respectively carry the first end 203 and the second end 204 of the product 2. The drive assembly 520 can be structures such as a motor, a rotary electric cylinder, etc., and is configured to provide a rotational force. Under the drive of the drive assembly 520, the transmission wheels rotate, thereby driving the transmission belts to move, and receiving and transporting the product 2 by using the movement of the transmission belts.

[0034] Exemplarily, the transmission assembly 510 includes at least two screws and at least two nuts. The two screws are arranged opposite to each other, and the two nuts respectively carry the first end 203 and the second end 204 of the product 2. One end of the screw is connected to the drive assembly 520, and the screw extends along the first direction. As the screw rotates, the nut moves along the first direction, and the nut carries the product 2 and moves along the first direction.

[0035] Exemplarily, the drive assembly 520 can be drive structures such as a motor, a rotary electric cylinder, etc. that can provide a rotational force, and the present application does not make specific limitations. The number of motors and rotary electric cylinders included in the drive assembly 520 can be selected according to actual needs, and the present application does not make specific limitations.

[0036] In some embodiments, the drive assembly 520 includes a servo motor 521. The servo motor 521 is connected to the transmission assembly 510 and is configured to drive the transmission assembly 510 to move so that the transmission assembly 510 receives and transports the product 2. The servo motor 521 has low energy consumption and high driving accuracy, reducing the energy consumption of the blanking assembly 50 and improving the accuracy of the blanking assembly 50.

[0037] In some embodiments, as Figure 1 shown, the transmission assembly 510 includes a plurality of blanking rollers 51. The plurality of blanking rollers 51 are arranged in sequence along the first direction X. The blanking rollers 51 can rotate by themselves and are configured to carry the product 2 and transport the product 2 by rotating by themselves. The first direction X is the transmission direction of the product 2. As Figure 2 and Figure 3 shown, the blanking roller 51 includes: two bearing sections 511 and a connecting section 512. The two bearing sections 511 are respectively configured to carry the first end 203 and the second end 204 of the product 2. The connecting section 512 connects the two bearing sections 511, and the diameter of the connecting section 512 is smaller than the diameter of the bearing section 511.

[0038] By setting the distance between the plurality of blanking rollers 51, the number of blanking rollers 51 supporting one product 2 can be adjusted, so as to minimize the number of blanking rollers 51 in contact with the product 2 while satisfying the supporting effect on the product 2, thereby further reducing the damage to the film layer on the lower surface of the product 2.

[0039] In some embodiments, the two supporting sections 511 are in line contact or point contact with the first end 203 of the product 2 and the second end 204 of the product 2, respectively, thereby further reducing the contact area between the supporting section 511 and the first end 203 of the product 2 and the second end 204 of the product 2, thereby further reducing the damage of the film layer on the lower surface of the product 2 caused by the unloading roller 51.

[0040] Figure 4 Another embodiment of the present application is shown. Figure 3 The enlarged view of the blanking component in area A is shown. Figure 4 As shown, the side of the bearing section 511 has a flange 5111. The flange 5111 is in point contact with the first end 203 and the second end 204 of the product 2. For example, the shape of the flange 5111 in the axial section of the bearing section 511 is a triangle, and one corner point of the triangle is in point contact with the first end 203 and the second end 204 of the product 2. For example. Figure 3 As shown, the bearing section 511 is in the shape of a cylindrical structure, and the side surface of the cylindrical structure is in linear contact with the first end 203 and the second end 204 of the product 2. In other words, the lower surface of the product 2 is tangent to the side surface of the cylindrical structure.

[0041] In some embodiments, along the direction from the load-bearing section 511 to the connecting section 512 , the diameter of the load-bearing section 511 gradually decreases.

[0042] Figure 5 Shown is a schematic structural diagram of a blanking assembly provided in another embodiment of the present application. Figure 6 The present invention provides an embodiment of the present invention. Figure 5 An enlarged view of the blanking component in area B is shown. Figure 7 Shown is a schematic structural diagram of a blanking assembly provided in another embodiment of the present application. Figure 8 The present invention provides an embodiment of the present invention. Figure 7 The enlarged view of the blanking component in area C is shown. Figures 5 to 8 As shown, along the direction from the load-bearing section 511 to the connecting section 512, the diameter of the load-bearing section 511 gradually decreases. Figure 5 and Figure 6 As shown, the side of the bearing section 511 close to the connecting section 512 is an arc surface. Figure 7 and Figure 8 As shown, a surface of the bearing section 511 close to the connecting section 512 is an inclined surface.

[0043] By gradually reducing the diameter of the bearing section 511 in the direction from the bearing section 511 to the connecting section 512, the bearing section 511 can achieve point contact support for the product 2. In addition, the two opposite arc surfaces or inclined surfaces can stably support the product 2 and prevent the product 2 from shaking.

[0044] In some embodiments, as Figure 8 shown, in the axial cross-section of the blanking roller 51, the shape of the bearing section 511 includes a trapezoid, the shape of the connecting section 512 includes a rectangle, the upper base of the trapezoid coincides with one side of the rectangle, and the size of the upper base of the trapezoid is smaller than the size of the lower base of the trapezoid, that is, the surface of the bearing section 511 close to the connecting section 512 is an inclined surface, which is convenient for the processing of the blanking roller 51.

[0045] An embodiment of the present application further provides a film layer preparation device, as Figure 1 shown, the film layer preparation device 1 includes a process roller 10 and a blanking assembly 50. A solution 3 is attached to the upper surface of the process roller 10, and the solution 3 can be attached to the lower surface of the product 2 through the rolling of the process roller 10 to form a film layer on the lower surface of the product 2. The lower surface of the product 2 has opposite first end 203 and second end 204. The blanking assembly 50 is configured to carry the first end 203 and the second end 204 of the product 2 and transport the product 2. The blanking assembly 50 may be the blanking assembly in the above embodiments.

[0046] Since the film layer preparation device 1 includes the blanking assembly 50, the film layer preparation device 1 has all the technical features and technical effects of the blanking assembly 50, which will not be elaborated here.

[0047] Exemplarily, the process roller 10 may include a cylindrical structure, a rod-shaped structure and other structures. The process roller 10 is provided with an attachment surface 11. Exemplarily, the process roller 10 is a cylindrical structure, and the attachment surface 11 is the side surface of the cylindrical structure. The process roller 10 can rotate around the axis of the cylindrical structure, and the attachment surface 11 is configured to carry the product 2 and contact the lower surface of the product 2. The lower surface of the product 2 includes a first surface 201.

[0048] In some embodiments, the solution 3 may be a perovskite solution, and a perovskite film layer is formed after the perovskite solution is attached to the first surface 201. The viscosity and concentration of the perovskite solution can be adjusted as needed, so as to facilitate the attachment of the perovskite solution to the first surface 201 of the product 2 and improve the uniformity of the prepared film layer.

[0049] In some embodiments, the film layer preparation device 1 further includes a first container 20. The first container 20 is arranged below the process roller 10. The first container 20 is provided with a first accommodation chamber 21 and a first opening 22 facing upward, and the first opening 22 is communicated with the first accommodation chamber 21, and the first accommodation chamber 21 can accommodate the solution 3. The first container 20 may be a container such as a solution pool or a solution box, as long as it can hold the solution 3.

[0050] At least a part of the attachment surface 11 extends into the first accommodation chamber 21, so that at least a part of the attachment surface 11 can attach the solution 3. The attachment surface 11 can rollingly contact the first surface 201, so that at least a part of the solution 3 attached to the attachment surface 11 can be attached to the first surface 201, realizing the preparation of a film layer on the first surface 201 of the product 2. The film layer preparation device 1 has a simple structure and low cost.

[0051] Exemplarily, the attachment surface 11 extends into the first accommodation chamber 21 through the first opening 22. As the process roller 10 rotates, the attachment surface 11 can be attached by the solution 3. Exemplarily, the first surface 201 is located on the lower surface of the product 2. Exemplarily, the attachment surface 11 is the surface of a cylindrical structure, and the attachment surface 11 carries the product 2. As the process roller 10 rotates, the attachment surface 11 rolls on the first surface 201, so that the product 2 moves along the second direction Y1, thereby attaching the solution 3 to the first surface 201 of the product 2 while transporting the product 2, forming a film layer, and improving the preparation efficiency of the film layer.

[0052] Exemplarily, the solution 3 attached to the process roller 10 can also drip into the first container 20, realizing the reuse of the solution 3 and improving the utilization rate of the solution 3.

[0053] In some embodiments, the number of the process rollers 10 is multiple, and the multiple process rollers 10 are arranged in sequence along the first direction X. At least two of the multiple process rollers 10 respectively attach the surfaces 11 to jointly carry the product 2. The first direction X is the horizontal direction.

[0054] By making the attachment surfaces 11 of the multiple process rollers 10 jointly carry the product 2, the first surface 201 of the product 2 can contact the attachment surfaces 11 of the multiple process rollers 10, so that the first surface 201 of the product 2 can contact the attachment surfaces 11 of the process rollers 10 multiple times, and further the first surface 201 of the product 2 is attached with the solution 3 multiple times, preventing some areas of the first surface 201 from being missed coated, and further improving the uniformity of the film layer prepared on the first surface 201 of the product 2.

[0055] In addition, by jointly carrying the product 2 by the multiple process rollers 10, multi-point support for the product 2 is realized, and the stability of the product 2 is improved.

[0056] In some embodiments, the film layer preparation device 1 further includes a drying assembly 60. The drying assembly 60 is arranged adjacent to the process roller 10 and is configured to provide heat energy to the process roller 10, so as to accelerate the speed of forming a film layer of the solution 3 on the first surface 201 of the product 2.

[0057] In some embodiments, the film layer preparation apparatus 1 further includes a loading assembly 40. The loading assembly 40 is configured to carry the product 2 and transport the product 2 to the process roller 10, thereby realizing automatic loading of the process roller 10 and improving the automation degree of the film layer preparation apparatus 1.

[0058] Exemplarily, the loading assembly 40 may be a belt drive assembly that supports and transports the product 2 through a conveyor belt. Exemplarily, the loading assembly 40 may be a combination of a chain drive assembly and rollers, where the chain conveyor drives the rollers to rotate, and then the rollers support and transport the product 2. Exemplarily, the loading assembly 40 may also be a linear module that supports and transports the product 2 through a slider on the linear module. The specific structure of the loading assembly 40 can be selected according to actual needs, and the present application does not make specific limitations.

[0059] In some embodiments, the loading assembly 40 includes a plurality of loading rollers 41. The plurality of loading rollers 41 are arranged in sequence along the first direction X. The loading rollers 41 can rotate self - sufficiently and are configured to carry the product 2 and transport the product 2 to the process roller 10 through self - rotation. Along the first direction X, the vertical heights of the geometric centers of the plurality of loading rollers 41 increase in sequence.

[0060] Exemplarily, as Figure 1 shown, three loading rollers 41 are shown. Along the first direction X, the vertical heights of the geometric centers of the three loading rollers 41 increase in sequence, so that along the first direction X, the vertical heights of the products 2 located on the three loading rollers 41 gradually increase, thereby preventing the side and upper surfaces of the product 2 from being contaminated by the solution 3 on the process roller 10.

[0061] In some embodiments, the loading assembly 40 further includes at least one transition roller 42. The transition roller 42 is arranged between the loading roller 41 and the process roller 10. The transition roller 42 is located above the first container 20, and the solution 3 on the transition roller 42 can enter the first accommodation chamber 21 through the first opening 22.

[0062] In practical applications, when the product 2 is supported by both the transition roller 42 and the process roller 10, after the solution 3 adheres to the first surface 201 of the product 2, the solution 3 may flow back to the transition roller 42 along the first surface 201, and the solution 3 on the transition roller 42 can drip into the first container 20, thereby recovering the solution 3 and further improving the utilization rate of the solution 3.

[0063] Exemplarily, the height of the upper surface of the transition roller 42 is greater than or equal to the height of the upper surface of the loading roller 41 adjacent to the transition roller 42.

[0064] Exemplarily, the drying assembly 60 can be a hot air blower, which provides heat energy to the process roller 10 by blowing hot air to the process roller 10. Exemplarily, the drying assembly 60 can be a heating wire or a heating tube, which provides heat energy to the process roller 10 by heating the gas around the process roller 10.

[0065] In some embodiments, the film layer preparation device 1 further includes a housing 70. The housing 70 has an accommodation space 71, an air inlet 72 and an air outlet 73 that communicate with the accommodation space 71. The process roller 10 and the blanking assembly 50 are both disposed in the accommodation space 71, and the product 2 can be placed in the accommodation space 71. The impurity gas can flow out of the accommodation space 71 through the air outlet 73, and the inert gas can flow into the accommodation space 71 through the air inlet 72, so that the accommodation space 71 is filled with the inert gas, avoiding the reaction of the solution 3 with the impurity gas.

[0066] Exemplarily, the drying assembly 60 can also be disposed in the accommodation space 71. Exemplarily, the solution 3 is a perovskite solution. The perovskite solution has strong radiation and is easy to volatilize. By providing the housing 70, the volatilization of the solution 3 can be reduced, and the influence of the radiation of the solution 3 on the user can be reduced.

[0067] In some embodiments, as Figure 1 shown, the film layer preparation device 1 further includes: a support assembly 80 and at least one process roller driving assembly 90. The support assembly 80 is configured to support the process roller 10, and the process roller 10 is rotatably connected to the support assembly 80. The process roller driving assembly 90 is connected to the process roller 10 and is configured to drive the process roller 10 to rotate self.

[0068] Exemplarily, the support assembly 80 can be structures such as support columns, brackets, and support plates. The support assembly 80 can also support the loading roller 41, the transition roller 42, and the blanking roller 51. Exemplarily, the support assembly 80 and the process roller driving assembly 90 can also be disposed in the accommodation space 71.

[0069] The process roller driving assembly 90 can be a combination of a motor and a transmission structure. The transmission structure can be belt transmission, chain transmission, gear transmission, screw-nut transmission, etc., and the present application does not make specific limitations. Exemplarily, the motor can be a servo motor, which reduces the energy consumption of the film layer preparation device 1.

[0070] The basic principles of the present application have been described above in conjunction with specific embodiments. However, it should be noted that the advantages, advantages, effects, etc. mentioned in the present application are only examples and not limitations, and it cannot be considered that these advantages, advantages, effects, etc. are essential for each embodiment of the present application. In addition, the above-disclosed specific details are only for the purpose of illustration and easy understanding, and are not limitations. The above details do not limit the present application to necessarily adopt the above specific details to implement.

[0071] The block diagrams of the devices, apparatuses, equipment, and systems involved in this application are only illustrative examples and are not intended to require or imply that they must be connected, arranged, and configured in the manner shown in the block diagrams. As those skilled in the art will recognize, these devices, apparatuses, equipment, and systems can be connected, arranged, and configured in any manner. Words such as "including", "comprising", "having", etc. are open-ended terms, meaning "including but not limited to", and can be used interchangeably with each other. The word "or" and "and" used herein refer to the phrase "and / or", and can be used interchangeably with it, unless the context clearly indicates otherwise. The phrase "such as" used herein refers to the phrase "such as but not limited to", and can be used interchangeably with it.

[0072] It should also be noted that in the devices, equipment, and methods of this application, each component or each step can be decomposed and / or recombined. These decompositions and / or recombinations should be regarded as equivalent solutions of this application.

[0073] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use this application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein can be applied to other aspects without departing from the scope of this application. Therefore, this application is not intended to be limited to the aspects shown herein, but rather to the broadest scope consistent with the principles and novel features disclosed herein.

[0074] The above description has been given for purposes of illustration and description. In addition, this description is not intended to limit the embodiments of this application to the forms disclosed herein. Although multiple example aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, alterations, additions, and sub-combinations thereof.

Claims

1. A blanking assembly, characterized in that: is configured to receive and transport a product, the lower surface of the product having a film layer attached thereto, the lower surface of the product having opposite first and second ends; Wherein, the blanking assembly comprises: a transmission assembly configured to carry a first end of the product and a second end of the product; The driving assembly is connected to the transmission assembly and is configured to drive the transmission assembly to move so that the transmission assembly receives and transports the product.

2. The blanking assembly according to claim 1, characterized in that: The transmission assembly comprises: A plurality of unloading rollers are arranged in sequence along a first direction, the unloading rollers are capable of self-rotation, and are configured to carry the product and transport the product by self-rotation, the first direction being a transport direction of the product; Wherein, the unloading roller comprises: two bearing sections, respectively configured to bear a first end of the product and a second end of the product; A connecting section connects the two bearing sections, and a diameter of the connecting section is smaller than a diameter of the bearing section.

3. The blanking assembly according to claim 2, characterized in that: The two bearing sections are in line contact or point contact with the first end of the product and the second end of the product respectively.

4. The blanking assembly according to claim 3, characterized in that: Along the direction from the load-bearing section to the connecting section, the diameter of the load-bearing section gradually decreases.

5. The blanking assembly according to claim 3, characterized in that: In the axial section of the unloading roller, the shape of the bearing section includes a trapezoid, the shape of the connecting section includes a rectangle, the upper base of the trapezoid coincides with one side of the rectangle, and the size of the upper base of the trapezoid is smaller than the size of the lower base of the trapezoid.

6. The blanking assembly according to any one of claims 1 to 5, characterized in that: The drive assembly comprises: The servo motor is connected to the transmission assembly and is configured to drive the transmission assembly to move so that the transmission assembly receives and transports the product.

7. The blanking assembly according to any one of claims 1 to 5, characterized in that: The film layer attached to the lower surface of the product is a perovskite film layer.

8. A film preparation device, characterized in that: include: A process roller, wherein a solution is attached to the upper surface of the process roller, and the solution can be attached to the lower surface of the product by rolling the process roller to form a film layer on the lower surface of the product, wherein the lower surface of the product has a first end and a second end opposite to each other; The unloading assembly according to any one of claims 1 to 7 is configured to carry the first end of the product and the second end of the product and transport the product.

9. The film preparation device according to claim 8, characterized in that: Also includes: A drying assembly is disposed adjacent to the process roller and is configured to provide heat energy to the process roller.

10. The film preparation device according to claim 8, characterized in that: Also includes: A shell having a containing space and an air inlet and an air outlet communicated with the containing space, wherein the process roller and the blanking assembly are both arranged in the containing space, and the product can be placed in the containing space; The impurity gas can flow out of the accommodation space through the gas outlet, and the inert gas can flow into the accommodation space through the gas inlet.

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