High-stability fine grid screen printing plate

Abstract

The utility model discloses a fine grid screen printing plate with high stability, which relates to the technical field of silk-screen printing and comprises a plurality of corner frames, a plurality of connecting sleeves, a plurality of printing screen printing plates and a plurality of printing screen printing plates, one ends of the two corner frames are inserted into the connecting sleeves, one ends of the two corner frames are fixedly connected with connecting racks, and the other ends of the two corner frames are fixedly connected with the printing screen printing plates. Connecting rotating rods are rotationally connected into the connecting sleeves, connecting gears are fixedly connected to the connecting rotating rods, the four corners of a printing screen are fixed to corner frames, the left corner frame and the right corner frame are pulled to be away from each other, and the upper corner frame and the lower corner frame are pulled to be away from each other, so that the printing screen installed in the frame body is opened; and under the action of a connecting sleeve, a connecting rotating rod, a connecting gear, a connecting rack and a limiting mechanism, one ends of the two corner frames are limited to slide towards the interior of the connecting sleeve, rapid mounting and fixing of the printing screen are completed, and the device is simple in structure and can be suitable for fixing the printing screens of different sizes.

Description

Technical Field

[0001] This utility model relates to the field of screen printing technology, specifically a highly stable fine screen printing plate. Background Technology

[0002] Fine-grid screen printing is a high-precision screen printing template, mainly used in the manufacture of solar cells in the photovoltaic industry. The printing screen is an important component of screen printing. A conventional printing screen includes a frame, a screen fabric stretched and fixed to the frame, and a perforated pattern corresponding to the image to be printed, formed by photosensitive plate making. The printing process utilizes the basic principle that ink can pass through the perforated parts of the screen fabric, while ink cannot pass through the non-perforated parts, to print on the substrate.

[0003] Chinese Patent Publication No. CN207825703U discloses a screen printing stencil, including a frame, a screen, and an image section. The frame includes a first corner frame, two second corner frames, and a third corner frame. The first and third corner frames are diagonally arranged, as are the two second corner frames. The first corner frame is composed of two mutually perpendicular first profiles spliced ​​together. The second corner frame is composed of one first profile and one second profile spliced ​​together perpendicularly. The third corner frame is composed of two second profiles spliced ​​together perpendicularly. The two first profiles of the first corner frame are adjustablely telescopically inserted and fixed inside the second profiles of the second corner frames. The first profiles of the second corner frames are also adjustablely telescopically inserted and fixed inside the second profiles of the third corner frames.

[0004] However, the inventor of the above device believes that there are certain defects. When adjusting the size of the frame, the fastening nut needs to be unscrewed once, and the fastener needs to be reinstalled after adjustment. This adjustment method is cumbersome. When the nut is lost or damaged, the frame cannot be used normally. Therefore, this utility model provides a high-stability fine grid plate. Utility Model Content

[0005] The purpose of this invention is to provide a highly stable fine grid plate to solve the problems mentioned in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-stability fine screen printing plate, comprising multiple corner brackets, multiple connecting sleeves, a printing screen, and multiple magnetic strips. One end of two of the corner brackets is inserted into the interior of the connecting sleeve, and a connecting rack is fixedly connected to one end of each of the two corner brackets. A connecting rod is rotatably connected inside the connecting sleeve, and a connecting gear is fixedly connected to the connecting rod. Both connecting racks mesh with the connecting gear. A fixed top box is fixedly connected to the top of the connecting sleeve, and one end of the connecting rod extends into the interior of the fixed top box. A limiting mechanism restricting the reverse rotation of the connecting rod is provided inside the fixed top box. A fixed clamping plate is fixedly connected to the corner bracket, and a movable clamping plate is slidably connected to the corner bracket. The corners of the printing screen are clamped between the fixed clamping plate and the movable clamping plate.

[0007] Preferably, the limiting mechanism includes a rotating ratchet fixed to the outer surface of the connecting rod, and a limiting slide rod slidably connected to the fixed top box. One end of the limiting slide rod is inserted between the teeth of the rotating ratchet, and the reverse rotation of the connecting rod is limited by the plane of the rotating ratchet teeth abutting against the plane of the limiting slide rod.

[0008] Preferably, a baffle is fixedly connected to the limiting slide rod, and the baffle is connected to the inner wall of the fixed top box by a spring. Under the action of the spring force, the limiting slide rod can quickly slide and reset when one end is not under force.

[0009] Preferably, the corner frame is provided with a rotating groove, and one end of the movable clamp is slidably connected inside the rotating groove, so that the movable clamp can slide on the corner frame through the rotating groove.

[0010] Preferably, an adjusting screw is rotatably connected inside the rotating groove, and the movable clamping plate is threadedly connected to the adjusting screw. Rotating the adjusting screw controls the raising and lowering of one end of the movable clamping plate inside the rotating groove.

[0011] Preferably, a fixing strip is fixedly connected to the connecting sleeve, and the edge of the printing screen is clamped between the fixing strip and the magnetic strip, using magnetic fixing to clamp the edge of the printing screen between the fixing strip and the magnetic strip.

[0012] Preferably, one end of the adjusting screw extends to the top of the corner bracket, and a rotating nut is fixedly connected to the top of the adjusting screw, which facilitates driving the adjusting screw to rotate inside the rotating groove under the action of the rotating nut.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This application fixes the four corners of the printing screen to the corner brackets, and opens the printing screen installed inside the frame by pulling the left and right corner brackets and the upper and lower corner brackets away from each other. The connecting sleeve, connecting rod, connecting gear, connecting rack and limiting mechanism restrict one end of the two corner brackets from sliding into the connecting sleeve, thus completing the quick installation and fixing of the printing screen. The device has a simple structure and can be used to fix printing screens of different sizes.

[0015] 2. This application drives the adjusting screw to rotate inside the rotating groove by rotating the rotating nut at the top of the adjusting screw, which drives the movable clamping plate to descend so that the movable clamping plate and the fixed clamping plate can quickly clamp and fix the edges and corners of the printing screen. The magnetic strip is magnetically attracted to the top of the fixed strip to clamp the edge of the printing screen. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural view of a high-stability fine grid plate according to the present invention;

[0017] Figure 2 This is a perspective view of the bottom of the corner frame of a high-stability fine grid plate according to this utility model;

[0018] Figure 3 This is a three-dimensional cross-sectional view of a connecting sleeve for a high-stability fine grid plate according to this utility model;

[0019] Figure 4 This is a sectional perspective view of a fixed top box with a high-stability fine mesh screen according to the present invention;

[0020] Figure 5 This utility model provides a high-stability fine-grid plate. Figure 1 Enlarged view of point A.

[0021] The following are the labels in the diagram: 1. Corner bracket; 11. Fixed clamp; 12. Movable clamp; 13. Rotating groove; 14. Adjusting screw; 2. Connecting sleeve; 21. Connecting rotating rod; 22. Connecting gear; 23. Fixing strip; 24. Magnetic strip; 3. Printing screen; 4. Connecting rack; 5. Fixed top box; 51. Rotating ratchet; 52. Limiting slide bar; 53. Spring. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 A high-stability fine screen printing plate includes multiple corner brackets 1, multiple connecting sleeves 2, a printing screen 3, and multiple magnetic strips 24. One end of two corner brackets 1 is inserted into the inside of the connecting sleeve 2. A connecting rack 4 is fixedly connected to one end of each corner bracket 1. A connecting rod 21 is rotatably connected inside the connecting sleeve 2. A connecting gear 22 is fixedly connected to the connecting rod 21. Both connecting racks 4 mesh with the connecting gear 22. The two connecting racks 4 are located at both ends of the connecting gear 22. By pulling the two corner brackets 1 away from each other, the connecting rod 21 is driven to rotate forward under the action of the connecting rod 21, the connecting gear 22, and the two connecting racks 4.

[0024] Please refer to it again. Figure 1 , Figure 3 and Figure 4 A fixed top box 5 is fixedly connected to the top of the connecting sleeve 2. One end of the connecting rod 21 extends into the interior of the fixed top box 5. The interior of the fixed top box 5 is provided with a limiting mechanism to restrict the reverse rotation of the connecting rod 21. Under the action of the limiting mechanism, the reverse rotation of the connecting rod 21 is restricted, thereby restricting one end of the two corner brackets 1 from sliding into the interior of the connecting sleeve 2.

[0025] Please refer to it again. Figure 1 , Figure 3 and Figure 4 The limiting mechanism includes a rotating ratchet 51 fixed to the outer surface of the connecting rod 21, and a limiting slide rod 52 slidably connected to the fixed top box 5. One end of the limiting slide rod 52 is inserted between the teeth of the rotating ratchet 51. A baffle is fixedly connected to the limiting slide rod 52. The baffle is connected to the inner wall of the fixed top box 5 by a spring 53. When the connecting rod 21 rotates in the forward direction, the inclined surface of the teeth of the rotating ratchet 51 presses against the inclined surface of one end of the limiting slide rod 52 to push the limiting slide rod 52 to slide. Then, the reverse rotation of the connecting rod 21 is limited by the mating of the tooth plane of the rotating ratchet 51 with the plane of the limiting slide rod 52.

[0026] Please refer to it again. Figure 1 , Figure 2 and Figure 5A fixed clamping plate 11 is fixedly connected to the corner frame 1, and a movable clamping plate 12 is slidably connected to the corner frame 1. The corner of the printing screen 3 is clamped between the fixed clamping plate 11 and the movable clamping plate 12. By controlling the movable clamping plate 12 to slide downward, the corner of the printing screen 3 is clamped between the fixed clamping plate 11 and the movable clamping plate 12. A rotating groove 13 is provided on the corner frame 1. One end of the movable clamping plate 12 is slidably connected to the inside of the rotating groove 13. An adjusting screw 14 is rotatably connected inside the rotating groove 13. The movable clamping plate 12 is threadedly connected to the adjusting screw 14. One end of the adjusting screw 14 extends to the top of the corner frame 1. A rotating nut is fixedly connected to the top of the adjusting screw 14. By rotating the rotating nut on the top of the adjusting screw 14, the adjusting screw 14 is driven inside the rotating groove 13, so that the movable clamping plate 12 can slide up and down on the corner frame 1.

[0027] Please refer to it again. Figure 1 and Figure 2 A fixing strip 23 is fixedly connected to the connecting sleeve 2. The edge of the printing screen 3 is clamped between the fixing strip 23 and the magnetic strip 24. The fixing strip 23 is made of iron and is magnetically attracted to the fixing strip 23 by the magnetic strip 24. The edge of the printing screen 3 is clamped by the magnetic strip 24 and the fixing strip 23.

[0028] Working principle: By placing the four corners of the printing screen 3 on the four fixed clamping plates 11, the adjusting screw 14 is driven to move inside the rotating groove 13 by rotating the rotating nut at the top of the adjusting screw 14. This causes the movable clamping plate 12 to slide up and down on the corner bracket 1, clamping the corners of the printing screen 3 between the fixed clamping plates 11 and the movable clamping plate 12. Then, the two sets of corner brackets 1 are pulled apart. By pulling the left and right sets of corner brackets 1 and the upper and lower sets of corner brackets 1 apart, the printing screen 3 installed inside the frame is opened up. 1. During the process of moving away from each other, the connecting rack 4 and the connecting gear 22 drive the connecting rod 21 to rotate in the forward direction. The inclined surface of the teeth of the rotating ratchet 51 presses against the inclined surface of one end of the limiting slide rod 52 to push the limiting slide rod 52 to slide. Then, the rebound of the spring 53 drives the limiting slide rod 52 to quickly return to its original position. The reverse rotation of the connecting rod 21 is restricted by the plane of the teeth of the rotating ratchet 51 abutting against the plane of the limiting slide rod 52. Finally, the magnetic strip 24 is magnetically attracted to the fixing strip 23 to clamp the edge of the printing screen 3.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A high-stability fine screen, characterized by: The utility model provides a printing net version fixing device, including a plurality of corner frame (1), a plurality of connecting sleeve (2), printing screen (3) and a plurality of magnetic strip (24), two corner frame (1) one end is inserted in the inside of connecting sleeve (2), two corner frame (1) one end is fixedly connected with connecting rack (4), the inside rotationally connected with connecting rack (21) of connecting sleeve (2), connecting rack (21) is fixedly connected with connecting gear (22), two connecting rack (4) all are engaged with connecting gear (22), the top of connecting sleeve (2) is fixedly connected with fixed top box (5), one end of connecting rack (21) extends to the inside of fixed top box (5), the inside of fixed top box (5) is equipped with the limiting mechanism of limiting connecting rack (21) reverse rotation, corner frame (1) is fixedly connected with fixed clamping plate (11), corner frame (1) is slidably connected with movable clamping plate (12), and the corner of printing screen (3) is clamped between fixed clamping plate (11) and movable clamping plate (12).

2. A high-stability fine screen as claimed in claim 1, characterized in that: The limiting mechanism includes the rotation ratchet wheel (51) fixed on the outer surface of connecting rack (21), the fixed top box (5) is slidably connected with the limiting slide bar (52), one end of limiting slide bar (52) is inserted between the gear gap of rotation ratchet wheel (51).

3. A high-stability fine screen as claimed in claim 2, characterized in that: The limiting slide bar (52) is fixedly connected with the baffle, and the baffle is connected with the inner wall of fixed top box (5) through spring (53).

4. The high-stability fine screen of claim 1, wherein: The corner frame (1) is provided with a rotating groove (13), and one end of the movable clamping plate (12) is slidably connected in the rotating groove (13).

5. A high-stability fine screen as claimed in claim 4, characterized in that: The rotating groove (13) is rotatably connected with an adjusting screw (14), and the movable clamping plate (12) is threadedly connected with the adjusting screw (14).

6. The high-stability fine screen of claim 1, wherein: The connecting sleeve (2) is fixedly connected with a fixed strip (23), and the edge of the printing screen (3) is clamped between the fixed strip (23) and the magnetic strip (24).

7. A high-stability fine screen printing according to claim 5, characterized in that: One end of the adjusting screw (14) extends to the top of the corner frame (1), and the top of the adjusting screw (14) is fixedly connected with a rotating nut.

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