Self-cleaning type solar cell printing silk screen

Abstract

The utility model provides a self-cleaning type solar cell printing silk screen. The self-cleaning type solar cell printing silk screen comprises a silk screen body fixedly sleeved with a screen frame, a support, a plurality of positioning pieces and a reciprocating driving piece. A swing arm is hinged to the support, an inserting groove is formed in the swing end face of the swing arm, and the two sides, facing the thickness direction of the swing arm, of the swing arm are each of an open structure avoiding the silk screen body. The support is fixedly connected with a support plate; the multiple positioning pieces are arranged on the side face, facing the opening of the inserting groove, of the screen frame, and the reciprocating driving piece is arranged on the swing arm and connected with each positioning piece. In actual use, the swing arm can swing to the supporting plate to support the swing arm, and under the action of the reciprocating driving piece, the multiple positioning pieces can reciprocate in the axial direction of the inserting groove, so that residual slurry on the screen body is shaken off. According to the self-cleaning type solar cell printing silk screen, the process of disassembling and assembling the printing silk screen can be omitted, automatic execution of surface cleaning of the printing silk screen is achieved, and the stability of continuous use of the printing silk screen is ensured.

Description

Technical Field

[0001] The present application belongs to the technical field of printing screens, and in particular relates to a self-cleaning solar cell printing screen. Background Art

[0002] Solar cells can convert light energy into electrical energy under the irradiation of sunlight, and are a new energy component with clean and environmentally friendly characteristics. In the existing solar cell production process, a printing screen is required to extrude the slurry into a predetermined shape onto the substrate to complete the formation of the electrode.

[0003] When the slurry passes through the mesh, some of it will remain in the mesh; for the same batch of printing processes using the same slurry, the residual slurry will be squeezed out under the push of the subsequent slurry, so it will not have a negative impact on the product quality; but for two batches of printing processes using different slurries, the residual slurry will mix with the subsequent slurry, thereby affecting the overall quality of the product.

[0004] The existing treatment method for residual slurry is to remove the printing screen after the slurry solidifies, and use a tool to hammer the screen frame of the printing screen to shake off the solid residual slurry from the printing screen to achieve cleaning of the printing screen.

[0005] The inventors found that during the screen printing process, it is inconvenient for operators to directly enter the printing area, and removing the printing screen from the fixed surface will consume a lot of time and easily have adverse effects on surrounding components. That is, the residual slurry treatment method is inefficient and difficult to execute. There is an urgent need in the prior art for a printing screen that can avoid the removal of the printing screen and automatically perform surface cleaning operations. Utility Model Content

[0006] The embodiment of the present application provides a self-cleaning solar cell printing screen, which aims to eliminate the process of disassembling and assembling the printing screen, realize the automated execution of the surface cleaning of the printing screen, and ensure the stability of the continuous use of the printing screen.

[0007] To achieve the above purpose, the technical solution adopted in this application is:

[0008] Provided is a self-cleaning solar cell printing screen, comprising a screen body fixedly sleeved with a screen frame; and further comprising:

[0009] The support is used to be fixed on a horizontal plane, and a swing arm is hinged on it; the swing end surface of the swing arm is provided with a slot suitable for the wire mesh body to be placed therein, and both sides of the swing arm facing its own thickness direction are open structures that are connected to the slot and avoid the wire mesh body; the support is also fixedly connected to a support plate, and the support plate is used to abut against the screen frame and support the wire mesh body;

[0010] A plurality of positioning members are arranged on the side of the screen frame facing the slot opening; and

[0011] A reciprocating driving member, which is arranged on the swing arm and connected to each of the positioning members, and is used for driving the screen frame to move along the axial direction of the slot through the positioning members;

[0012] Wherein, the swing arm is suitable for swinging to a first swing position that makes the wire mesh body horizontal, and a second swing position that makes the wire mesh body inclined; and the support and the support plate can respectively support the swing arm in the first swing position and the second swing position.

[0013] In a possible implementation, there are two positioning members, and the two positioning members are arranged in parallel along the hinge axis of the swing arm; the swing arm is provided with strip holes connected to the slot on both sides of its hinge axis, and the reciprocating drive member includes:

[0014] Two docking members are inserted into the slots, and are detachably connected to the two positioning members and correspond to the two strip holes; each docking member has a protrusion embedded in the corresponding strip hole, and the protrusion is detachably connected to a transmission platform located outside the swing arm; an elastic member is provided between each transmission platform and the swing arm; and

[0015] Two eccentric wheels are respectively arranged on two outer sides of the swing arm facing the hinge axis thereof, abut against the transmission platform, and are eccentrically rotatably connected with the swing arm;

[0016] Among them, there is a synchronous driving component between the two eccentric wheels; when the synchronous driving component drives the two eccentric wheels to rotate, the eccentric wheel can drive the transmission platform to move so that the elastic member undergoes elastic deformation; the eccentric wheel can also avoid the transmission platform so that the elastic member recovers its deformation and drives the transmission platform to move toward the eccentric wheel.

[0017] In a possible implementation, the extended end face of the protrusion is provided with a fixing nut; the transmission platform is provided with a through hole suitable for being coaxially connected to the fixing nut, and a docking bolt suitable for being inserted into the through hole and threadedly connected to the fixing nut.

[0018] In a possible implementation, each of the positioning members has a T-shaped positioning groove on its side facing away from the screen frame, and two positioning grooves respectively penetrate two adjacent side surfaces of the positioning members.

[0019] Each of the docking parts has a slider, and each of the sliders is slidably engaged in the corresponding positioning groove along the hinge axis of the swing arm.

[0020] In a possible implementation, the transmission platform has blocking plates on both sides of the slot in the axial direction; the two blocking plates are fixedly connected to the swing arm, and a plurality of connecting rods are provided between the two blocking plates;

[0021] Wherein, the transmission platform is slidably connected to each of the connecting rods, and the elastic member is a spring sleeved on the connecting rod.

[0022] In a possible implementation, the synchronous driving component includes:

[0023] Two driving gears are coaxially connected to the rotating shafts of the two eccentric wheels respectively;

[0024] A main transmission shaft is arranged outside the swing arm, and its axial direction is parallel to the hinge axis of the swing arm; both ends of the main transmission shaft are coaxially connected with driven gears, and the two driven gears correspond to the two driving gears respectively; and

[0025] A rotating motor is arranged outside the swing arm, the power output axis of which is parallel to the axis of the main transmission shaft, and the power output end of the rotating motor is coaxially connected to a driving gear meshing with one of the driven gears;

[0026] Wherein, when the rotating motor drives the main transmission shaft to rotate through the mutually meshing driving gear and the driven gear, the driven gear drives the driving gear to rotate, so that the two eccentric wheels rotate eccentrically at the same time.

[0027] In a possible implementation, a transmission gear is provided between the corresponding driving gear and the driven gear; the transmission gear is rotatably connected to the swing arm and meshes with the driving gear and the driven gear;

[0028] When the driven gear rotates, the transmission gear rotates to drive the driving gear to rotate synchronously.

[0029] In a possible implementation, when the eccentric wheel drives the transmission platform to move away from the bottom of the slot and the elastic member undergoes elastic deformation, the protrusion is suitable for abutting against the end surface of the strip hole to limit the movement of the transmission platform away from the bottom of the slot.

[0030] In a possible implementation manner, there is an adhesive layer between each of the positioning members and the screen frame.

[0031] In a possible implementation, the upper side of the support is rotatably connected to a rotating disk having a notch;

[0032] The rotating disk can rotate to abut against the swing arm in the first swing position to limit the swing of the swing arm;

[0033] The turntable can also rotate to avoid the swing arm in the first swing position, so that the swing arm can swing to the second swing position through the notch.

[0034] In the embodiment of the present application, the assembly of the printing screen can be achieved by combining the screen frame with the screen body, placing the screen frame into the slot, and combining the positioning member and the reciprocating drive member; on this basis, the support is fixed on a horizontal plane and the swing arm is swung to a first swing position to achieve a horizontal arrangement of the screen body; and the swing arm is swung to a second swing position and the reciprocating drive member is started to make the screen body reciprocate in the slot, thereby shaking off the residual slurry on the screen body and achieving cleaning of the screen body.

[0035] Compared with the prior art, the self-cleaning solar cell printing screen provided in this embodiment can avoid the process of disassembling and assembling the printing screen, realize the automatic execution of the surface cleaning of the printing screen, and ensure the stability of the continuous use of the printing screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0037] Figure 1 One of the three-dimensional structural schematic diagrams of the self-cleaning solar cell printing screen provided in the embodiment of the present application;

[0038] Figure 2 for Figure 1 A partial enlarged schematic diagram of the upper circle A;

[0039] Figure 3 The second schematic diagram of the three-dimensional structure of the self-cleaning solar cell printing screen provided in the embodiment of the present application;

[0040] Figure 4 A schematic cross-sectional view of the self-cleaning solar cell printing screen provided in an embodiment of the present application;

[0041] Figure 5 for Figure 4 A partial enlarged schematic diagram of the upper circle B;

[0042] Figure 6 A partially enlarged schematic diagram of a self-cleaning solar cell printing screen provided in an embodiment of the present application in a cross-sectional perspective;

[0043] Figure 7 A partial schematic diagram of a support used in an embodiment of the present application;

[0044] Figure 8 A schematic diagram of the three-dimensional structure of the swing arm used in the embodiment of the present application;

[0045] Fig. 9 This is a schematic diagram of the exploded structure of the positioning member and the docking member used in the embodiment of the present application in a cross-sectional perspective;

[0046] Fig.10 This is a schematic diagram of the exploded structure of the docking piece and the transmission platform used in the embodiment of the present application;

[0047] Fig.11 A schematic diagram of the three-dimensional structure of the reciprocating drive member used in the embodiment of the present application;

[0048] Fig.12 A schematic diagram of the three-dimensional structure of a synchronous drive component used in an embodiment of the present application;

[0049] Explanation of the accompanying drawings: 1. screen body; 11. screen frame; 2. support; 21. support plate; 3. swing arm; 31. slot; 32. strip hole; 4. positioning member; 41. positioning groove; 5. reciprocating drive member; 51. docking member; 511. protrusion; 5111. fixing nut; 512. transmission platform; 5121. through hole; 5122. docking bolt; 513. elastic member; 514. slider; 52. eccentric wheel; 6. synchronous drive member; 61. driving gear; 62. main transmission shaft; 621. driven gear; 63. rotating motor; 631. driving gear; 7. blocking plate; 71. connecting rod; 8. transmission gear; 9. turntable. DETAILED DESCRIPTION

[0050] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application 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 application and are not used to limit the present application.

[0051] 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.

[0052] It should be understood that the orientation or position relationship indicated by terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0053] 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. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0054] Please also read Figures 1 to 12 The self-cleaning solar cell printing screen provided by the present application is now described. The self-cleaning solar cell printing screen provided by the present application comprises a screen body 1, a support 2, a plurality of positioning members 4, and a reciprocating driving member 5.

[0055] A screen frame 11 is fixedly mounted on the screen body 1 and is made of hard material.

[0056] The support 2 is used to be fixed on a horizontal plane, specifically, it is arranged on the support surface at the lower side of the scraper. A swing arm 3 is hinged on the support 2 in the horizontal direction; in this embodiment, the hinge axis of the swing arm 3 is defined as the left-right direction.

[0057] A slot 31 is provided on the swing end face of the swing arm 3, and this slot 31 is suitable for inserting the assembly of the screen body 1 and the screen frame 11; and both sides of the swing arm 3 facing its own thickness direction adopt an open structure that is connected to the slot 31 and avoids the screen body 1; that is, after the assembly of the screen body 1 and the screen frame 11 is inserted into the slot 31, the screen body 1 faces this open structure to be suitable for inserting a scraper and allowing slurry to pass through.

[0058] A support plate 21 is also fixedly connected to the support 2 , and the support plate 21 is used to abut against the screen frame 11 and support the screen body 1 .

[0059] It should be noted that the swing arm 3 is suitable for swinging to a first swing position that makes the wire mesh body 1 horizontal, and a second swing position that makes the wire mesh body 1 inclined; and the support 2 can support the swing arm 3 in the first swing position, and the support plate 21 can support the swing arm 3 in the second swing position.

[0060] The plurality of positioning members 4 are arranged on the side of the screen frame 11 facing the opening of the slot 31 ; the reason for designing a plurality of positioning members 4 is to ensure that the transmission of the vibration force is distributed in multiple places, thereby ensuring the vibration-off effect of the residual slurry on the screen body 1 .

[0061] The reciprocating driving member 5 is disposed on the swing arm 3 and is connected to each positioning member 4 , and is used for driving the screen frame 11 to reciprocate along the axial direction of the slot 31 through the positioning member 4 .

[0062] In the embodiment of the present application, the assembly of the printing screen can be achieved by combining the screen frame 11 with the screen body 1, placing the screen frame 11 into the slot 31, and combining the positioning member 4 and the reciprocating drive member 5; on this basis, the support 2 is fixed on a horizontal plane and the swing arm 3 is swung to a first swing position, so that the horizontal arrangement of the screen body 1 can be achieved; and the swing arm 3 is swung to a second swing position and the reciprocating drive member 5 is started, so that the screen body 1 can be reciprocated in the slot 31, thereby shaking off the residual slurry on the screen body 1 and achieving the cleaning of the screen body 1.

[0063] Compared with the prior art, the self-cleaning solar cell printing screen provided in this embodiment can avoid the process of disassembling and assembling the printing screen, realize the automatic execution of the surface cleaning of the printing screen, and ensure the stability of the continuous use of the printing screen.

[0064] In some embodiments, Figure 4 , Figure 5 and Fig.11 As shown, there are two positioning members 4 , and the two positioning members 4 are arranged side by side along the hinge axis of the swing arm 3 .

[0065] The swing arm 3 is provided with strip holes 32 communicating with the slot 31 on both sides of the swing arm 3 toward its own hinge axis; based on this, in the present embodiment, the reciprocating driving member 5 includes two docking members 51 and two eccentric wheels 52 .

[0066] The two docking members 51 are both inserted into the slots 31, and are detachably connected to the two positioning members 4 and correspond to the two strip holes 32 respectively; each docking member 51 has a protrusion 511 embedded in the corresponding strip hole 32, and the protrusion 511 is detachably connected to a transmission platform 512 located on the outside of the swing arm 3; and each transmission platform 512 is provided with an elastic member 513 between the swing arm 3.

[0067] The two eccentric wheels 52 are respectively arranged on two outer side surfaces of the swing arm 3 facing the hinge axis thereof, abut against the transmission platform 512 , and are eccentrically rotatably connected to the swing arm 3 .

[0068] Among them, there is a synchronous driving component 6 between the two eccentric wheels 52; by adopting the above technical solution, when the synchronous driving component 6 drives the two eccentric wheels 52 to rotate, the eccentric wheel 52 can drive the transmission platform 512 to move, so that the elastic member 513 undergoes elastic deformation; the eccentric wheel 52 can also avoid the transmission platform 512, so that the elastic member 513 recovers the deformation and drives the transmission platform 512 to move toward the eccentric wheel 52.

[0069] In some embodiments, Fig. 9 and Fig.10 As shown, a fixing nut 5111 is provided on the extended end surface of the protrusion 511; the transmission platform 512 has a through hole 5121 suitable for being coaxially connected to the fixing nut 5111, and a docking bolt 5122 suitable for being inserted into the through hole 5121 and threadedly connected to the fixing nut 5111.

[0070] The protrusion 511 and the transmission platform 512 are connected firmly by connecting the protrusion 511 with the transmission platform 512 and passing the connecting bolt 5122 through the through hole 5121 and being threadedly connected with the fixing nut 5111 .

[0071] When the protruding portion 511 and the transmission platform 512 are connected, the docking member 51 and the transmission platform 512 abut against the inner wall of the slot 31 and the outer wall of the swing arm 3 respectively.

[0072] In some embodiments, Fig. 9 As shown, each positioning member 4 has a T-shaped positioning groove 41 on the side facing away from the screen frame 11 , and the two positioning grooves 41 respectively penetrate through the adjacent side surfaces of the two positioning members 4 .

[0073] Each docking member 51 has a slider 514 , and each slider 514 is slidably engaged in the corresponding positioning groove 41 along the hinge axis of the swing arm 3 .

[0074] During assembly, the docking member 51 is moved leftward and rightward to insert the slider 514 into the positioning groove 41 , thereby realizing the combination of the positioning member 4 and the docking member 51 and the synchronous movement of the positioning member 4 and the docking member 51 in the axial direction of the slot 31 .

[0075] In some embodiments, Figure 2 , Figure 5 and Figure 6 As shown, both sides of the transmission platform 512 facing the slot 31 axially have blocking plates 7 ; when in use, the blocking plates 7 can abut against the transmission platform 512 to limit the movement of the transmission platform 512 .

[0076] The two blocking plates 7 are fixedly connected to the swing arm 3 , and a plurality of connecting rods 71 ​​are arranged between the two blocking plates 7 ; the transmission platform 512 is slidably connected to each connecting rod 71 , and the elastic member 513 is a spring sleeved on the connecting rod 71 .

[0077] In some embodiments, Figure 6 and Fig.12 As shown, the synchronous driving member 6 includes two driving gears 61 , a main transmission shaft 62 and a rotary motor 63 .

[0078] The two driving gears 61 are coaxially connected to the rotating shafts of the two eccentric wheels 52 .

[0079] The main transmission shaft 62 is arranged outside the swing arm 3, and its axial direction is parallel to the hinge axis of the swing arm 3; both ends of the main transmission shaft 62 are coaxially connected with driven gears 621, and the two driven gears 621 correspond to the two driving gears 61 respectively.

[0080] The rotating motor 63 is arranged outside the swing arm 3 , and its power output axis is parallel to the axis of the main transmission shaft 62 , and its power output end is coaxially connected to a driving gear 631 meshing with one of the driven gears 621 .

[0081] By adopting the above technical solution, when the rotating motor 63 drives the main transmission shaft 62 to rotate through the mutually meshing driving gear 631 and the driven gear 621, the driven gear 621 drives the driving gear 61 to rotate, so that the two eccentric wheels 52 rotate eccentrically at the same time.

[0082] In some embodiments, Figure 6 As shown, there is a transmission gear 8 between the corresponding driving gear 61 and the driven gear 621; the transmission gear 8 is rotatably connected to the swing arm 3, and it is meshed with the driving gear 61 and the driven gear 621.

[0083] By adopting the above technical solution, when the driven gear 621 rotates, the transmission gear 8 rotates to drive the driving gear 61 to rotate synchronously.

[0084] In some embodiments, Figures 1 to 12 As shown, when the eccentric wheel 52 drives the transmission platform 512 to move back toward the bottom of the slot 31 and the elastic member 513 undergoes elastic deformation, the protrusion 511 is suitable for abutting the end surface of the strip hole 32 to limit the movement of the transmission platform 512 back toward the bottom of the slot 31; at this time, the swing arm 3 can swing to the first swing position to ensure that the screen body 1 can be stably used in the screen printing process.

[0085] In some embodiments, there is an adhesive layer between each positioning member 4 and the screen frame 11 ; that is, the positioning member 4 and the screen frame 11 are connected by bonding to ensure the adaptability of the positioning member 4 to different screen frames 11 .

[0086] In some embodiments, Figure 1 , Figure 3 and Figure 7As shown, a turntable 9 is rotatably connected to the upper side of the support 2, and the turntable 9 has a notch that runs through the thickness direction and penetrates part of the edge.

[0087] During actual use, the turntable 9 can rotate to abut the swing arm 3 in the first swing position to limit the swing of the swing arm 3 and ensure that the swing arm 3 can be stably in the first swing position; the turntable 9 can also rotate to avoid the swing arm 3 in the first swing position so that the swing arm 3 can swing through the gap to the second swing position to perform the process of shaking off the residual slurry.

[0088] The above content is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A self-cleaning solar cell printing screen, comprising a screen body fixedly sleeved with a screen frame; characterized in that: Also includes: The support is used to be fixed on a horizontal plane, and a swing arm is hinged on it; the swing end surface of the swing arm is provided with a slot suitable for the wire mesh body to be placed therein, and both sides of the swing arm facing its own thickness direction are open structures that are connected to the slot and avoid the wire mesh body; the support is also fixedly connected to a support plate, and the support plate is used to abut against the screen frame and support the wire mesh body; A plurality of positioning members are arranged on the side of the screen frame facing the slot opening; as well as A reciprocating driving member, which is arranged on the swing arm and connected to each of the positioning members, and is used for driving the screen frame to move along the axial direction of the slot through the positioning members; Wherein, the swing arm is suitable for swinging to a first swing position that makes the wire mesh body horizontal, and a second swing position that makes the wire mesh body inclined; and the support and the support plate can respectively support the swing arm in the first swing position and the second swing position.

2. The self-cleaning solar cell printing screen according to claim 1, characterized in that: There are two positioning members, and the two positioning members are arranged in parallel along the hinge axis of the swing arm; the swing arm is provided with strip holes connected to the slot on both sides of its hinge axis, and the reciprocating drive member includes: Two docking members are inserted into the slots, and are detachably connected to the two positioning members and correspond to the two strip holes; each docking member has a protrusion embedded in the corresponding strip hole, and the protrusion is detachably connected to a transmission platform located outside the swing arm; an elastic member is provided between each transmission platform and the swing arm; and Two eccentric wheels are respectively arranged on two outer sides of the swing arm facing the hinge axis thereof, abut against the transmission platform, and are eccentrically rotatably connected with the swing arm; Among them, there is a synchronous driving component between the two eccentric wheels; when the synchronous driving component drives the two eccentric wheels to rotate, the eccentric wheel can drive the transmission platform to move so that the elastic member undergoes elastic deformation; the eccentric wheel can also avoid the transmission platform so that the elastic member recovers its deformation and drives the transmission platform to move toward the eccentric wheel.

3. The self-cleaning solar cell printing screen according to claim 2, characterized in that: The extending end surface of the protrusion is provided with a fixing nut; the transmission platform is provided with a through hole which is coaxially connected with the fixing nut, and a butt bolt which is inserted into the through hole and threadedly connected with the fixing nut.

4. The self-cleaning solar cell printing screen according to claim 2 or 3, characterized in that: A positioning groove with a T-shaped cross section is provided on the side of each positioning member facing away from the screen frame, and two positioning grooves respectively penetrate through the adjacent side surfaces of two positioning members; Each of the docking parts has a slider, and each of the sliders is slidably engaged in the corresponding positioning groove along the hinge axis of the swing arm.

5. The self-cleaning solar cell printing screen according to claim 2, characterized in that: The transmission platform has blocking plates on both sides of the slot in the axial direction; the two blocking plates are fixedly connected to the swing arm, and a plurality of connecting rods are arranged between the two blocking plates; Wherein, the transmission platform is slidably connected to each of the connecting rods, and the elastic member is a spring sleeved on the connecting rod.

6. The self-cleaning solar cell printing screen according to claim 2, characterized in that: The synchronous driving component comprises: Two driving gears are coaxially connected to the rotating shafts of the two eccentric wheels respectively; A main transmission shaft is arranged outside the swing arm, and its axial direction is parallel to the hinge axis of the swing arm; both ends of the main transmission shaft are coaxially connected with driven gears, and the two driven gears correspond to the two driving gears respectively; and A rotating motor is arranged outside the swing arm, the power output axis of which is parallel to the axis of the main transmission shaft, and the power output end of the rotating motor is coaxially connected to a driving gear meshing with one of the driven gears; Wherein, when the rotating motor drives the main transmission shaft to rotate through the mutually meshing driving gear and the driven gear, the driven gear drives the driving gear to rotate, so that the two eccentric wheels rotate eccentrically at the same time.

7. The self-cleaning solar cell printing screen according to claim 6, characterized in that: There is a transmission gear between the corresponding driving gear and the driven gear; the transmission gear is rotatably connected to the swing arm and meshes with the driving gear and the driven gear; When the driven gear rotates, the transmission gear rotates to drive the driving gear to rotate synchronously.

8. The self-cleaning solar cell printing screen according to claim 2, characterized in that: When the eccentric wheel drives the transmission platform to move away from the bottom of the slot and the elastic member undergoes elastic deformation, the protrusion is suitable for abutting against the end surface of the strip hole to limit the movement of the transmission platform away from the bottom of the slot.

9. The self-cleaning solar cell printing screen according to claim 1 or 2, characterized in that: There is an adhesive layer between each positioning member and the screen frame.

10. The self-cleaning solar cell printing screen according to claim 1, characterized in that: The upper side surface of the support is rotatably connected to a turntable with a notch; The rotating disk can rotate to abut against the swing arm in the first swing position to limit the swing of the swing arm; The turntable can also rotate to avoid the swing arm in the first swing position, so that the swing arm can swing to the second swing position through the notch.

Images