Positioning structure for crystalline silicon cell silver paste and screen printing

Abstract

The utility model discloses a crystal silicon cell silver paste and screen printing positioning structure which comprises a servo motor arranged on the rear side of the top of a tool table, the servo motor is fixedly connected with the top of the tool table through a left side supporting block, and the output end of the servo motor penetrates through the left side supporting block and is fixedly connected with a right-hand threaded rod and a left-hand threaded rod. The tail end of the right-hand and left-hand threaded rod is rotationally connected with the right side supporting block through a bearing seat. A servo motor drives a right-and-left threaded rod to rotate, so that a threaded sleeve in threaded connection with the surface of the right-and-left threaded rod is driven to rotate, positioning fixing plates connected with the right-and-left threaded rod are driven to move in the opposite direction or the reverse direction through the right-and-left thread design of the right-and-left threaded rod, and during opposite movement, the screen printing plate is positioned through the positioning fixing plates; when the limiting plates make contact with the two sides of the screen printing plate, the limiting plates drive the guide rods to move, so that the guide rods slide on the inner surface of the barrel through the sliding handles, limiting buffering is conducted through the springs, rigid touch of the end faces of the two sides of the screen printing plate is reduced, and the protection effect of the screen printing plate is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of screen printing, in particular to a crystalline silicon battery silver paste and a positioning structure for screen printing. Background Art

[0002] The existing graphics are formed in one step during the printing process, which has extremely high requirements for the silver paste and screen matching of crystalline silicon batteries. The width and height of the silver grid line are greatly affected by the high temperature of the sintering furnace. The existing graphic separation technology is used for overlapping printing at the same position to cope with the collapse problem of the silver grid line during the sintering process, thereby obtaining a higher silver grid line. For the separation graphics: specific parameters are used to formulate the first layer of printed silver grid lines, and after drying at a certain temperature, the second layer of silver grid lines is printed. After the double-layer silver grid lines are sintered, the second layer collapses faster than the first layer, so that the second layer wraps the first layer, meeting the adhesion requirements while obtaining a higher grid line.

[0003] The printed silver grid line plate needs to be pre-fixed during stacking printing. The existing fixing method mostly uses two fixing plates to position its two sides. Since the contact point is in rigid contact, the printed silver grid line plate may be damaged when positioning the two sides, thereby causing damage to the silver grid line. Utility Model Content

[0004] The utility model aims to provide a positioning structure for silver paste and screen printing of crystalline silicon cells, which has the purpose of improving the protection effect when positioning on both sides, so as to solve the above-mentioned background technical problems.

[0005] The utility model solves the above-mentioned technical problems with the following technical solutions: a positioning structure for silver paste and screen printing of crystalline silicon cells, comprising a servo motor arranged at the rear side of the top of a workbench, the servo motor being fixedly connected to the top of the workbench through a left support block, the output end of the servo motor passing through the left support block and being fixedly connected with a positive and negative threaded rod, the ends of the positive and negative threaded rods being rotatably connected with the right support block through a bearing seat, both sides of the surfaces of the positive and negative threaded rods being threadedly connected with threaded sleeves, the front of the threaded sleeves being fixedly connected with a positioning fixing plate, the front position of the bottom of the positioning fixing plate being slidingly arranged with the top of the workbench, the front and rear positions of the outer side of the positioning fixing plate being provided with protective components, the protective components comprising a cylinder fixedly connected to one side of the positioning fixing plate, the inner surface of the cylinder being slidingly connected with a sliding handle, the axis of the sliding handle being fixedly connected with a guide rod, the end of the guide rod away from the positioning fixing plate passing through the cylinder and extending to the outer side of the cylinder, the surface of the guide rod being sleeved with a spring, the two ends of the spring being fixedly connected with the sliding handle and the inner wall of the cylinder respectively, the guide rod passing through the interior of the positioning fixing plate and being fixedly connected with a limiting plate.

[0006] Preferably, a concave seat is fixedly connected to the bottom of the workbench, an electric telescopic rod is fixedly connected to the bottom of the inner cavity of the concave seat, the telescopic end of the electric telescopic rod is fixedly connected to a support plate, and a through groove adapted to the support plate is opened at the center of the inner cavity of the workbench.

[0007] Preferably, a guide recess is fixedly connected to the front position of the bottom of the positioning and fixing plate, a guide rail is fixedly connected to the top of the workbench and at a position corresponding to the guide recess, and the inner surface of the guide recess is slidably connected to the outer surface of the guide rail.

[0008] Preferably, the middle position of the surface of the positive and negative threaded rod is fixedly connected.

[0009] Preferably, the front cross-section of the positioning and fixing plate is designed to be L-shaped, and a protective pad is fixedly connected to the bottom of the inner cavity of the positioning and fixing plate.

[0010] 1. The beneficial effects of the utility model are as follows: the utility model drives the positive and negative threaded rods to rotate through the servo motor, thereby driving the threaded sleeve connected to the surface of the positive and negative threaded rods to rotate, and utilizes the positive and negative thread design of the positive and negative threaded rods to drive the connected positioning fixing plates to move toward or away from each other. When moving toward each other, the screen is positioned by the positioning fixing plates, and when the limit plates contact both sides of the screen, the limit plates drive the guide rods to move, so that the guide rods slide on the inner surface of the cylinder through the sliding handle, and limit and buffer through the springs, thereby reducing the rigid contact of the end faces on both sides of the screen, thereby improving its protective effect and avoiding the damage of the printed silver grid line plate.

[0011] 2. The utility model drives the support plate to move by the electric telescopic rod, and can adjust the screen placed on the top of the support plate to the upper and lower positions, so that the bottom end surface of the screen is located on the upper side of the bottom of the inner cavity of the positioning and fixing plate.

[0012] 3. The utility model can support and guide the movement of the positioning fixing plate by arranging the inner surface of the guide recess to be slidably connected with the outer surface of the guide rail.

[0013] 4. The utility model sets the front cross-section of the positioning and fixing plate to be L-shaped, and at the same time, a protective pad is fixedly connected to the bottom of the inner cavity of the positioning and fixing plate, so that the bottom surface of the screen connection can be protected. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] in:

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a partial enlarged view of point A of the utility model;

[0017] Figure 3 It is a bottom view schematic diagram of the structure of the utility model.

[0018] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0019] 1. Workbench; 2. Servo motor; 3. Positive and negative threaded rods; 4. Threaded sleeves; 5. Positioning and fixing plates; 6. Cylinders; 7. Sliding handles; 8. Guide rods; 9. Springs; 10. Limiting plates; 11. Concave seats; 12. Electric telescopic rods; 13. Support plates; 14. Through slots; 15. Guide recesses; 16. Guide rails; 17. Limiting blocks. DETAILED DESCRIPTION

[0020] Hereinafter, embodiments of the silver paste for crystalline silicon cells and the positioning structure for screen printing of the present invention will be described with reference to the accompanying drawings.

[0021] Embodiment 1:

[0022] Figure 1-3 The utility model shows a positioning structure for silver paste and screen printing of crystalline silicon cells in an embodiment of the present invention, including a servo motor 2 arranged at the rear side of the top of a tooling table 1, the servo motor 2 is fixedly connected to the top of the tooling table 1 through a left support block, the output end of the servo motor 2 passes through the left support block and is fixedly connected to a positive and negative threaded rod 3, the ends of the positive and negative threaded rod 3 are rotatably connected to the right support block through a bearing seat, both sides of the surface of the positive and negative threaded rod 3 are threadedly connected to threaded sleeves 4, the front of the threaded sleeve 4 is fixedly connected to a positioning fixing plate 5, the front position of the bottom of the positioning fixing plate 5 is slidably arranged with the top of the tooling table 1, the front position of the bottom of the positioning fixing plate 5 is fixedly connected to a guide recess 15, the top of the tooling table 1 and the position corresponding to the guide recess 15 is fixedly connected to a guide rail 16, the inner surface of the guide recess 15 is slidably connected to the outer surface of the guide rail 16, the movement of the positioning fixing plate 5 can be supported and guided by setting the inner surface of the guide recess 15 to be slidably connected to the outer surface of the guide rail 16, and the front and rear positions of the outer side of the positioning fixing plate 5 are provided with protective components;

[0023] The protection component includes a cylinder 6 fixedly connected to one side of the positioning and fixing plate 5, a sliding handle 7 is slidably connected to the inner surface of the cylinder 6, a limiting block 17 is fixedly connected to the middle position of the surface of the positive and negative threaded rod 3, a guide rod 8 is fixedly connected to the axis of the sliding handle 7, and the end of the guide rod 8 away from the positioning and fixing plate 5 passes through the cylinder 6 and extends to the outside of the cylinder 6. A spring 9 is sleeved on the surface of the guide rod 8, and the two ends of the spring 9 are respectively fixedly connected to the sliding handle 7 and the inner wall of the cylinder 6. The guide rod 8 passes through the interior of the positioning and fixing plate 5 and is fixedly connected to the limiting plate 10, and the positive and negative threaded rod 3 is driven to rotate by the servo motor 2 , thereby driving the threaded sleeve 4 connected to its surface thread to rotate, and utilizing the positive and negative thread design of the positive and negative threaded rod 3 to drive the connected positioning fixing plate 5 to move toward or away from each other. When moving toward each other, the screen is positioned by the positioning fixing plate 5. When the limiting plate 10 contacts both sides of the screen, the limiting plate 10 drives the guide rod 8 to move, thereby making the guide rod 8 slide on the inner surface of the cylinder 6 through the sliding handle 7, and limiting and buffering are performed by the spring 9, thereby reducing the rigid contact of the end faces on both sides of the screen, thereby improving its protection effect and avoiding the damage of the printed silver grid line plate.

[0024] Embodiment 2:

[0025] Figure 1-3The utility model shows a positioning structure for silver paste and screen printing of crystalline silicon cells in one embodiment, including a servo motor 2 arranged on the rear side of the top of a workbench 1, the servo motor 2 is fixedly connected to the top of the workbench 1 through a left support block, the output end of the servo motor 2 passes through the left support block and is fixedly connected to a positive and negative threaded rod 3, the ends of the positive and negative threaded rod 3 are rotatably connected to the right support block through a bearing seat, both sides of the surface of the positive and negative threaded rod 3 are threadedly connected to threaded sleeves 4, the front of the threaded sleeve 4 is fixedly connected to a positioning fixing plate 5, the front position of the bottom of the positioning fixing plate 5 is slidably arranged with the top of the workbench 1, the bottom of the workbench 1 is fixedly connected to a concave seat 11, the bottom of the inner cavity of the concave seat 11 is fixedly connected to an electric telescopic rod 12, the telescopic end of the electric telescopic rod 12 is fixedly connected to a support plate 13, a through groove 14 adapted to the support plate 13 is provided at the center of the inner cavity of the workbench 1, the support plate 13 is driven to move by the electric telescopic rod 12, and the support The screen placed on the top of the support plate 13 is adjusted to its up and down position, so that the bottom end surface of the screen is located on the upper side of the bottom of the inner cavity of the positioning and fixing plate 5. The front cross-section of the positioning and fixing plate 5 is designed to be L-shaped, and the bottom of the inner cavity of the positioning and fixing plate 5 is fixedly connected with a protective pad. By setting the front cross-section of the positioning and fixing plate 5 to be L-shaped, and the bottom of the inner cavity of the positioning and fixing plate 5 is fixedly connected with a protective pad, the bottom surface of the screen connection can be protected. The front and rear positions of the outer side of the positioning and fixing plate 5 are provided with protective components. The protective component includes a cylinder 6 fixedly connected to one side of the positioning and fixing plate 5, and a sliding handle 7 is slidably connected to the inner surface of the cylinder 6. A guide rod 8 is fixedly connected at the axis of the sliding handle 7. The end of the guide rod 8 away from the positioning and fixing plate 5 passes through the cylinder 6 and extends to the outside of the cylinder 6. A spring 9 is sleeved on the surface of the guide rod 8. The two ends of the spring 9 are fixedly connected to the sliding handle 7 and the inner wall of the cylinder 6 respectively. The guide rod 8 passes through the interior of the positioning and fixing plate 5 and is fixedly connected to the limiting plate 10.

[0026] Working principle: When the utility model is used, the electric telescopic rod 12 is started, and the support plate 13 is driven to move by the electric telescopic rod 12, so that the screen placed on the top of the support plate 13 can be adjusted up and down, so that the bottom end face of the screen is located on the upper side of the bottom of the inner cavity of the positioning and fixing plate 5, and the positive and negative threaded rod 3 is driven to rotate by the servo motor 2, thereby driving the threaded sleeve 4 threadedly connected on its surface to rotate, and utilizing the positive and negative threaded design of the positive and negative threaded rod 3 to drive the connected positioning and fixing plate 5 to move toward or away from each other. When moving toward each other, the screen is positioned by the positioning and fixing plate 5, and when the limit plate 10 contacts both sides of the screen, the limit plate 10 drives the guide rod 8 to move, so that the guide rod 8 slides on the inner surface of the cylinder 6 through the sliding handle 7, and is limited and buffered by the spring 9, thereby reducing the rigid contact of the end faces on both sides of the screen, thereby improving its protection effect and avoiding the damage of the printed silver grid line plate.

Claims

1. A positioning structure for silver paste and screen printing of crystalline silicon cells, comprising a servo motor (2) arranged at the rear side of the top of a tooling table (1), wherein the servo motor (2) is fixedly connected to the top of the tooling table (1) through a left support block, characterized in that: The output end of the servo motor (2) passes through the left support block and is fixedly connected to a positive and negative threaded rod (3). The ends of the positive and negative threaded rod (3) are rotatably connected to the right support block through a bearing seat. Both sides of the surface of the positive and negative threaded rod (3) are threadedly connected to threaded sleeves (4). The front of the threaded sleeve (4) is fixedly connected to a positioning fixing plate (5). The front position of the bottom of the positioning fixing plate (5) is slidably arranged with the top of the workbench (1). The front and rear positions of the outer side of the positioning fixing plate (5) are both provided with protective components. The protective components include a fixed connection A cylinder (6) is provided on one side of the positioning and fixing plate (5), the inner surface of which is slidably connected to a sliding handle (7), the axis of which is fixedly connected to a guide rod (8), one end of which, away from the positioning and fixing plate (5), passes through the cylinder (6) and extends to the outside of the cylinder (6), a spring (9) is sleeved on the surface of the guide rod (8), the two ends of which are respectively fixedly connected to the sliding handle (7) and the inner wall of the cylinder (6), the guide rod (8) passes through the interior of the positioning and fixing plate (5) and is fixedly connected to a limiting plate (10).

2. A crystalline silicon cell silver paste and positioning structure for screen printing according to claim 1, characterized in that: The bottom of the workbench (1) is fixedly connected to a concave seat (11), the bottom of the inner cavity of the concave seat (11) is fixedly connected to an electric telescopic rod (12), the telescopic end of the electric telescopic rod (12) is fixedly connected to a support plate (13), and a through groove (14) adapted to the support plate (13) is provided at the center of the inner cavity of the workbench (1).

3. A crystalline silicon battery silver paste and positioning structure for screen printing according to claim 1, characterized in that: A guide recess (15) is fixedly connected to the front position of the bottom of the positioning fixing plate (5), and a guide rail (16) is fixedly connected to the top of the tooling table (1) and at a position corresponding to the guide recess (15), and the inner surface of the guide recess (15) is slidably connected to the outer surface of the guide rail (16).

4. A crystalline silicon battery silver paste and positioning structure for screen printing according to claim 1, characterized in that: A limiting block (17) is fixedly connected to the middle position of the surface of the forward and reverse threaded rod (3).

5. A crystalline silicon battery silver paste and positioning structure for screen printing according to claim 1, characterized in that: The front cross section of the positioning and fixing plate (5) is designed to be L-shaped, and a protective pad is fixedly connected to the bottom of the inner cavity of the positioning and fixing plate (5).

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