Wear-resistant and shape-fixing printing screen

Abstract

The utility model discloses a wear-resistant fixing type printing screen, which relates to the field of screen printing and comprises a lower end mounting frame, a butt joint embedding frame is mounted above the lower end mounting frame, a sliding elastic mechanism for extruding a printing extrusion plate is mounted on the upper surface of the butt joint embedding frame, and the sliding elastic mechanism comprises a movable sliding frame. According to the wear-resistant solid type printing screen plate, when external printing work needs to be conducted on a solar cell, butt joint of a lower end mounting frame and a butt joint embedding frame is directly completed, after butt joint is completed, a printing extrusion plate can abut against a reciprocating printing area, and the printing extrusion plate and the reciprocating printing area are attached more tightly through the extrusion effect of a pressing embedding spring; the lower end mounting frame and the butt joint embedding frame are both made of metal materials, ribs connected with each other are not arranged in the reciprocating printing area, the reciprocating printing area is of an overall opening structure, and due to the design, the screen printing plate is higher in design durability, and large abrasion cannot occur after the screen printing plate is used for a long time.

Description

Technical Field

[0001] This utility model relates to the field of screen printing technology, specifically to a wear-resistant and durable printing screen. Background Technology

[0002] With conventional fossil fuels being increasingly depleted, solar energy is undoubtedly the cleanest, most widespread, and most promising alternative energy source among existing sustainable energy sources. Solar power generation devices, also known as solar cells or photovoltaic cells, can directly convert solar energy into electrical energy. Their power generation principle is based on the photovoltaic effect of semiconductor PN junctions.

[0003] With the continuous advancement of research on high-efficiency solar cells in the industry, most monocrystalline and polycrystalline solar cell modules currently have relatively high rated operating currents, averaging around 8A-9A. As the current flows through the solder ribbons inside the module, power losses occur, primarily converted into Joule heat within the module. Therefore, the higher the current, the greater this loss becomes.

[0004] To overcome the above-mentioned defects, the prior art (Chinese patent with publication number CN219988703U and application date of 2023-05-23) discloses a printing screen, which includes at least two printing areas, each of which is provided with a screen pattern for printing half a battery cell, and a first non-printing area is provided between two adjacent printing areas. The printing screen of this application sets at least two spaced printing areas, and sets a screen pattern for printing half a battery cell in each printing area, so that each printing area of ​​the printing screen can independently print a half battery cell. Therefore, there is no need to cut the battery cell after printing, avoiding the efficiency loss caused by cutting the battery cell, improving the conversion efficiency of the battery module, and also avoiding microcracks in the battery cell, reducing the breakage rate during battery module welding.

[0005] While the above design can solve the aforementioned problems, the durability of a single screen design is insufficient for printing operations. After prolonged use, excessive wear may lead to unprinted areas and work errors. Furthermore, the printing area of ​​the above design lacks sliding support, which cannot guarantee uniform ink adhesion during horizontal printing. Such a design reduces the yield rate and increases production costs. Utility Model Content

[0006] The purpose of this invention is to provide a wear-resistant and durable printing screen to solve the problems mentioned in the background art, such as the insufficient durability of the single screen design when printing, which may lead to excessive wear after long-term use, resulting in some areas not being printed and causing work errors. In addition, the printing area of ​​the above design lacks sliding support, which cannot ensure uniform ink adhesion when printing horizontally. Such a design reduces the yield and increases production costs.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a wear-resistant and durable printing screen, comprising a lower mounting frame, a mating frame mounted above the lower mounting frame, and a sliding elastic mechanism for pressing a printing extrusion plate mounted on the upper surface of the mating frame. The sliding elastic mechanism includes a movable sliding frame, which is fixedly mounted on the upper surface of the mating frame. A first sliding inner groove is formed on the upper surface of the movable sliding frame, and a sliding telescopic fixing frame is formed on the lower surface of the movable sliding frame. A central fixing rod is installed inside the sliding telescopic fixing frame, and a pressure-applying fitting spring is formed on the outer surface of the central fixing rod. A mating frame is mounted on the side of the lower mounting frame, and an elastic fitting mechanism for fixing an upper abutting semi-circular rod is installed inside the mating frame.

[0008] Furthermore, the end of the reset contact spring abuts against the side of the fixed limiting sliding frame, and a second sliding inner groove is provided on the side of the contact retractable semi-circular rod. An auxiliary limiting rod is installed inside the second sliding inner groove, and the auxiliary limiting rod is fixedly installed on the inner surface of the docking fitting frame. Moreover, the upper end of the contact semi-circular rod is fixedly installed on the side of the docking fitting frame.

[0009] Furthermore, the end of the reset contact spring abuts against the side of the fixed limiting sliding frame, and a second sliding inner groove is provided on the side of the contact retractable semi-circular rod. An auxiliary limiting rod is installed inside the second sliding inner groove, and the auxiliary limiting rod is fixedly installed on the inner surface of the docking fitting frame. Moreover, the upper end of the contact semi-circular rod is fixedly installed on the side of the docking fitting frame.

[0010] Furthermore, the top of the pressure-applying spring abuts against the lower end of the sliding telescopic fixing frame, and the sliding telescopic fixing frame is slidably fitted inside the first sliding inner groove. The movable sliding frame, the central fixing rod, and the sliding telescopic fixing frame are symmetrically installed in two sets about the center point of the docking frame, and a printed extrusion plate is installed inside the lower end of the central fixing rod.

[0011] Furthermore, the lower end of the printing extrusion plate is in contact with the upper surface of the reciprocating printing area, and the lower end mounting frame and the mating frame are rotatably connected to each other. The printing extrusion plate and the pressure-applying spring are designed as an integral unit, and the upper surface of the reciprocating printing area and the lower surface of the printing extrusion plate are in contact to form a sliding structure.

[0012] Furthermore, the inner surface of the first sliding inner groove contacts the outer surface of the sliding telescopic fixing frame to form a sliding structure, and the lower surface of the sliding telescopic fixing frame contacts the top of the pressure-fitting spring to form an elastic structure. Moreover, the series transmission handle is fixed to the outer surface of the printing extrusion plate through the lower end of the middle fixing rod to form a transmission structure.

[0013] Furthermore, the movement trajectories of the upper contact semicircular rod and the auxiliary limiting rod are mutually abutting, and the ends of both the upper contact semicircular rod and the auxiliary limiting rod are semicircular.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: When the wear-resistant and solid printing screen needs to perform external printing work on solar cells, the lower mounting frame and the docking frame are directly docked. After docking, the printing extrusion plate will abut against the reciprocating printing area, and the squeezing effect of the pressure fitting spring makes the printing extrusion plate and the reciprocating printing area fit more tightly. Moreover, the lower mounting frame and the docking frame are both made of metal, and there are no interconnecting ribs in the reciprocating printing area. The reciprocating printing area has an integral open structure. This design makes the screen design more durable and will not experience significant wear after long-term use.

[0015] Furthermore, during the rotational docking operation between the lower mounting frame and the mating frame, the rotation of the mating frame will cause the upper abutting semicircular rod to abut against the abutting retracting semicircular rod in the rotation trajectory. During the abutting process, the return abutting spring will be compressed and retracted. After the upper abutting semicircular rod passes through the abutting retracting semicircular rod, the return abutting spring will push out and reset, so that both sides of the mating frame are fixed together with the upper abutting semicircular rod. This design makes the sliding support of the printing area better, and the ink is more uniform and adhered better when printing horizontally.

[0016] Furthermore, the movement of the tandem transmission handle will drive the printing extrusion plate through two sets of central fixing rods, resulting in higher ink adhesion stability. In addition, the diameter design of the reciprocating printing area corresponds to that of the printing extrusion plate, which ensures that the ink spreads evenly. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the lower mounting frame of this utility model;

[0018] Figure 2 This is a three-dimensional structural diagram of the mating frame of this utility model;

[0019] Figure 3 This is a three-dimensional structural diagram of the movable sliding frame of this utility model;

[0020] Figure 4This is a three-dimensional structural diagram of the first sliding inner groove of this utility model;

[0021] Figure 5 This is a schematic diagram of the three-dimensional structure of the upper abutting semi-circular rod of this utility model;

[0022] Figure 6 This is a three-dimensional structural diagram of the second sliding inner groove of this utility model.

[0023] In the diagram: 1. Lower mounting frame; 2. Connecting and fitting frame; 3. Moving sliding frame; 4. Reciprocating printing area; 5. First sliding inner groove; 6. Upper contact semi-circular rod; 7. Connecting and fitting frame; 8. Middle connecting fixed rod; 9. Sliding telescopic fixed frame; 10. Printing extrusion plate; 11. Series transmission handle; 12. Pressure fitting spring; 13. Fixed limit sliding frame; 14. Contact retraction semi-circular rod; 15. Reset contact spring; 16. Second sliding inner groove; 17. Auxiliary limit rod. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example 1: Please refer to Figures 1-6 The present invention provides the following technical solution: a wear-resistant and durable printing screen, including a lower mounting frame 1, a mating frame 2 installed above the lower mounting frame 1, and a sliding elastic mechanism for pressing the printing extrusion plate 10 installed on the upper surface of the mating frame 2. The sliding elastic mechanism includes a movable sliding frame 3, which is fixedly installed on the upper surface of the mating frame 2. A first sliding inner groove 5 is provided on the upper surface of the movable sliding frame 3, and a sliding telescopic fixing frame 9 is provided on the lower surface of the movable sliding frame 3. A central fixing rod 8 is installed inside the sliding telescopic fixing frame 9, and a pressure-applying fitting spring 12 is provided on the outer surface of the central fixing rod 8. A mating frame 7 is installed on the side of the lower mounting frame 1, and an elastic fitting mechanism for fixing the upper abutting semi-circular rod 6 is installed inside the mating frame 7.

[0026] like Figure 2 , Figure 3 , Figure 4The technical solution shown addresses the problem of insufficient durability of a single screen design during printing operations, which may lead to excessive wear and tear after prolonged use, resulting in unprinted areas and errors. It discloses that: the top of the pressure-fitting spring 12 abuts against the lower end of the sliding telescopic fixing frame 9, and the sliding telescopic fixing frame 9 is slidably fitted inside the first sliding inner groove 5. Two sets of movable sliding frames 3, central fixing rod 8, and sliding telescopic fixing frames 9 are symmetrically installed about the center point of the mating frame 2. A printing extrusion plate 10 is installed inside the lower end of the central fixing rod 8. The printing extrusion plate 10... The lower end is in contact with the upper surface of the reciprocating printing area 4, and the lower end mounting frame 1 and the mating frame 2 are rotatably connected to each other. The printing extrusion plate 10 and the pressure fitting spring 12 are designed as an integral unit. The upper surface of the reciprocating printing area 4 and the lower surface of the printing extrusion plate 10 are in contact to form a sliding structure. The inner surface of the first sliding inner groove 5 is in contact with the outer surface of the sliding telescopic fixing frame 9 to form a sliding structure. The lower surface of the sliding telescopic fixing frame 9 is in contact with the top of the pressure fitting spring 12 to form an elastic structure. Moreover, the series transmission handle 11 is fixed to the outer surface of the printing extrusion plate 10 through the lower end of the middle fixing rod 8 to form a transmission structure.

[0027] When stable printing is required on the exterior of the solar cell, the first step is to rotate and fix the lower mounting frame 1 and the mating frame 2. Simultaneously, as the lower mounting frame 1 and the mating frame 2 are fixed together, the upper surface of the reciprocating printing area 4 comes into contact with the lower end of the printing extrusion plate 10. After the printing extrusion plate 10 is contacted from the lower end, it simultaneously lifts the two sets of intermediate fixing rods 8 fixed at the upper end. Once lifted, the intermediate fixing rods 8 slide vertically upwards along the interior of the sliding telescopic fixing frame 9. During this sliding process, the pressure-applying spring 12 nested on the outer surface of the intermediate fixing rod 8 also moves synchronously, applying pressure. The movement of the interlocking spring 12 will cause it to compress and contract due to the resistance of the sliding telescopic fixing frame 9. The printing extrusion plate 10 will be pressed downward synchronously by the central fixing rod 8, so that the reciprocating printing area 4 and the printing extrusion plate 10 are more tightly attached, ensuring a more stable and smooth printing effect. After the attachment work is completed, the series transmission handle 11 is directly fixed and slides along the inside of the movable sliding frame 3. The series transmission handle 11 will drive the central fixing rod 8, which is fixedly installed at both ends of the lower surface, to move synchronously. The movement of the central fixing rod 8 will be along the inside of the first sliding inner groove 5 opened at the corresponding position of the movable sliding frame 3, ensuring higher stability of the printing work.

[0028] Example 2: Figure 1 , Figure 5 , Figure 6The technical solution shown above, in order to solve the problem of insufficient sliding support in the printing area of ​​the above-mentioned design, which cannot guarantee uniform ink adhesion during horizontal printing, resulting in a lower yield and increased production costs, discloses the following: An elastic fitting mechanism includes a fixed limiting sliding frame 13, which is fixedly installed on the inner surface of the mating fitting frame 7. An abutting retraction semi-circular rod 14 is installed inside the fixed limiting sliding frame 13, and a return abutting spring 15 is installed on the outer surface of the abutting retraction semi-circular rod 14. The end of the contact spring 15 abuts against the side of the fixed limiting sliding frame 13, and the side of the contact retractable semi-circular rod 14 is provided with a second sliding inner groove 16. An auxiliary limiting rod 17 is installed inside the second sliding inner groove 16, and the auxiliary limiting rod 17 is fixedly installed on the inner surface of the docking fitting frame 7. The upper end of the contact semi-circular rod 6 is fixedly installed on the side of the docking fitting frame 2. The movement trajectory of the upper end of the contact semi-circular rod 6 and the auxiliary limiting rod 17 abuts against each other, and the ends of the upper end of the contact semi-circular rod 6 and the auxiliary limiting rod 17 are both semi-circular.

[0029] When it is necessary to connect and fix the lower mounting frame 1 and the mating frame 2, fix the mating frame 2 and rotate it along the end of the lower mounting frame 1. The rotation of the mating frame 2 will cause the upper abutting semicircular rods 6 fixed on both sides to rotate synchronously. As the lower mounting frame 1 and the mating frame 2 gradually complete the connection, the lower end of the upper abutting semicircular rod 6 will also enter the interior of the mating frame 7 fixed at the corresponding positions on both sides of the lower mounting frame 1, until the lower end of the upper abutting semicircular rod 6 contacts the front end of the abutting retracting semicircular rod 14. Since the lower end of the upper abutting semicircular rod 6 and the front end of the abutting retracting semicircular rod 14 are both semicircular, the abutting retracting semicircular rod 14 will slide backward laterally after being abutted by the lower end of the upper abutting semicircular rod 6. The abutting retracting semicircular rod 14 will slide along the mating frame. The fixed limiting sliding frame 13, which is fixedly installed at the corresponding position on the inner surface of the frame 7, slides backward. At the same time as the abutting retractable semi-circular rod 14 slides, the reset abutting spring 15, which is nested on the outer surface, also retracts synchronously. When the reset abutting spring 15 moves, it abuts against the fixed limiting sliding frame 13. Due to the abutting action of the fixed limiting sliding frame 13, the reset abutting spring 15 will be squeezed and retracted until the upper abutting semi-circular rod 6 completely passes through the abutting retractable semi-circular rod 14. At this time, the reset abutting spring 15 releases its elastic potential energy and directly pushes the abutting retractable semi-circular rod 14 out and resets it. This design allows the abutting retractable semi-circular rod 14 to move laterally along the outer surface of the auxiliary limiting rod 17. The second sliding inner groove 16 opened at the corresponding position on the side of the abutting retractable semi-circular rod 14 will ensure higher sliding stability.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A wear-resistant and durable printing screen, comprising a lower mounting frame (1), wherein a mating frame (2) is mounted above the lower mounting frame (1), and a sliding elastic mechanism for pressing a printing extrusion plate (10) is mounted on the upper surface of the mating frame (2). Its features are: The sliding elastic mechanism includes a movable sliding frame (3), which is fixedly installed on the upper surface of the docking frame (2). The upper surface of the movable sliding frame (3) is provided with a first sliding inner groove (5), and the lower surface of the movable sliding frame (3) is provided with a sliding telescopic fixing frame (9). The sliding telescopic fixing frame (9) is equipped with a central fixing rod (8), and the outer surface of the central fixing rod (8) is provided with a pressure fitting spring (12). The side of the lower end mounting frame (1) is equipped with a docking fitting frame (7), and the interior of the docking fitting frame (7) is equipped with an elastic fitting mechanism for fixing the upper end abutting semi-circular rod (6).

2. The wear-resistant and durable printing screen according to claim 1, characterized in that: The elastic fitting mechanism includes a fixed limiting sliding frame (13), and the fixed limiting sliding frame (13) is fixedly installed on the inner surface of the mating fitting frame (7). The fixed limiting sliding frame (13) has an abutting retraction semi-circular rod (14) installed inside, and a reset abutting spring (15) is installed on the outer surface of the abutting retraction semi-circular rod (14).

3. The wear-resistant and durable printing screen according to claim 2, characterized in that: The end of the reset contact spring (15) abuts against the side of the fixed limiting sliding frame (13), and the side of the contact retractable semi-circular rod (14) is provided with a second sliding inner groove (16). An auxiliary limiting rod (17) is installed inside the second sliding inner groove (16), and the auxiliary limiting rod (17) is fixedly installed on the inner surface of the docking fitting frame (7), and the upper end abuts against the semi-circular rod (6) and is fixedly installed on the side of the docking fitting frame (2).

4. The wear-resistant and durable printing screen according to claim 1, characterized in that: The top of the pressure-applying spring (12) abuts against the lower end of the sliding telescopic fixing frame (9), and the sliding telescopic fixing frame (9) is slidably fitted inside the first sliding inner groove (5). The movable sliding frame (3), the central fixing rod (8), and the sliding telescopic fixing frame (9) are symmetrically installed on the left and right sides about the center point of the docking frame (2), and a printed extrusion plate (10) is installed inside the lower end of the central fixing rod (8).

5. A wear-resistant and durable printing screen according to claim 4, characterized in that: The lower end of the printing extrusion plate (10) is in contact with the upper surface of the reciprocating printing area (4), and the lower end mounting frame (1) and the mating frame (2) are rotatably connected to each other. The printing extrusion plate (10) and the pressure fitting spring (12) are designed as an integral unit, and the upper surface of the reciprocating printing area (4) and the lower surface of the printing extrusion plate (10) are in contact to form a sliding structure.

6. The wear-resistant and durable printing screen according to claim 5, characterized in that: The inner surface of the first sliding inner groove (5) contacts the outer surface of the sliding telescopic fixing frame (9) to form a sliding structure, and the lower surface of the sliding telescopic fixing frame (9) contacts the top of the pressure fitting spring (12) to form an elastic structure. Moreover, the series transmission handle (11) is fixed to the outer surface of the printing extrusion plate (10) through the lower end of the middle connecting fixing rod (8) to form a transmission structure.

7. The wear-resistant and durable printing screen according to claim 3, characterized in that: The upper contact semicircular rod (6) and the auxiliary limiting rod (17) move in tandem, and the ends of the upper contact semicircular rod (6) and the auxiliary limiting rod (17) are both semicircular.

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