Printing screen frame convenient to disassemble

Abstract

The utility model discloses a printing screen frame convenient to disassemble, which relates to the technical field of printing screens and comprises a lower mounting frame and an upper mounting frame which are matched with each other. The device further comprises a locking assembly used for locking the position of the lower mounting frame and the position of the upper mounting frame, a silk-screen mesh used for printing, a limiting rod used for fixing the silk-screen mesh and a winding rod. When the silk-screen printing device is used, an operator can select silk-screen printing gauze with appropriate patterns according to needs, pull the limiting rods and the winding rods on the two sides of the silk-screen printing gauze, and install the first limiting blocks on the limiting rods and the second limiting blocks on the winding rods into the corresponding limiting grooves; during installation, it needs to be guaranteed that the winding sleeve rotates by a certain angle around the axis of the fixing shaft, so that the spring has certain elastic potential energy, the winding sleeve can pull the silk-screen mesh all the time, and it is guaranteed that the silk-screen mesh has proper elastic tension.

Description

Technical Field

[0001] The utility model relates to the technical field of printing screens, in particular to a printing screen frame which is easy to disassemble. Background Art

[0002] Printing screen, also known as screen printing plate, is a key part in the screen printing process. It is mainly composed of screen frame, screen gauze (or simply screen) and a device to fix the gauze. The screen is used as a plate material to transfer ink through the mesh holes on it, thereby forming a pattern or text on the substrate. Printing screen has the characteristics of easy production method, simple printing equipment and strong adaptability. It is widely used in printing various materials, such as paper, plastic, metal, glass, etc.

[0003] A Chinese patent with announcement number CN218084661U discloses a detachable screen frame for printing screens, and its working principle is as follows: the plane generated after the screen installation clamping shaft is split is the screen clamping surface, and the detachable circular cylinder in the split structure is the screen pressing plate. The screen is clamped and fixed by the screen clamping surface and the screen pressing plate, and then the screen installation clamping shaft is driven to rotate to an appropriate angle by a wrench tool corresponding to the wrenching plane, so that the screen printing plate is located in an ideal installation position and tensioned. After tensioning, the circumferential position of the screen installation clamping shaft is still maintained by the wrench tool, and at the same time, the screen installation clamping shaft is clamped and connected to the two support plates by tightening the tightening nut, and then the screen upper frame and the screen lower frame are combined and connected, and the screen printing screen can be installed.

[0004] The disadvantages of the above-mentioned existing technical solutions are that tools such as wrenches need to be used in the adjustment process, which makes the entire operation process complicated and time-consuming, reducing production efficiency. In addition, the adjustment of the tension of the screen needs to rely on manual experience. Since each operator has different experience and feelings, it is often difficult to achieve accurate consistency in the judgment and adjustment of the tension of the screen, which not only increases the risk of damage to the screen, but also affects the stability and consistency of printing quality. Utility Model Content

[0005] The utility model aims to provide a printing screen frame that is easy to disassemble, so as to solve the technical problem in the prior art that tools such as wrenches are often needed during adjustment, making the entire operation process complicated and time-consuming, thereby reducing production efficiency.

[0006] The technical problem to be solved by the utility model can be achieved through the following technical solutions:

[0007] A printing screen frame that is easy to disassemble, comprising a lower mounting frame and an upper mounting frame, the lower mounting frame and the upper mounting frame cooperate with each other, the device further includes a locking component for locking the positions of the lower mounting frame and the upper mounting frame, a silk screen for printing, a limiting rod and a winding rod for fixing the silk screen, a limiting plate is fixedly connected inside the lower mounting frame, limiting grooves for cooperating with the limiting rod and the winding rod are opened at both ends of the limiting plate, the limiting rod includes a pull rod, and first limiting blocks that are fixedly connected to both ends of the pull rod and are fitted with the corresponding limiting grooves are provided, the winding rod includes a tension maintaining component for maintaining the tension of the silk screen, second limiting blocks that are fitted with the corresponding limiting grooves are arranged on both sides of the tension maintaining component, the silk screen is arranged between the pull rod and the tension maintaining component in a matching manner, and the silk screen is clamped between the lower mounting frame and the upper mounting frame.

[0008] As a further solution of the present invention: the tension maintaining component includes a fixed shaft fixedly connected between two groups of second limiting blocks, a winding sleeve is rotatably sleeved outside the fixed shaft, an elastic component for driving the winding sleeve to reset is arranged between the winding sleeve and the fixed shaft, one end of the silk screen is fixedly connected to the winding sleeve, and the other end is fixedly connected to the pull rod.

[0009] As a further solution of the present invention: the locking component includes first L-shaped clamping plates fixedly connected to both sides of the lower mounting frame, second L-shaped clamping plates fixedly connected to both sides of the upper mounting frame, and a locking U-shaped sliding plate for limiting the first L-shaped clamping plates and the second L-shaped clamping plates.

[0010] As a further solution of the present invention: a pressing frame for pressing the silk screen is fixedly connected inside the upper mounting frame.

[0011] As a further solution of the present invention: the elastic component includes a spring arranged between the winding sleeve and the fixed shaft in a matching manner.

[0012] As a further solution of the present invention: the top of the limiting plate is in contact with the inner wall of the upper mounting frame, the longitudinal section of the first limiting block is square, the sizes of the first limiting block and the second limiting block are the same, and the size of the limiting groove is adapted to the first limiting block and the second limiting block.

[0013] The beneficial effects of the present invention:

[0014] 1. When the utility model is in use, the operator can select a silk screen mesh with a suitable pattern according to needs, pull the limiting rods and winding rods on both sides of the silk screen mesh, and install the first limiting block on the limiting rod and the second limiting block on the winding rod into the corresponding limiting grooves, so as to stretch the silk screen mesh arranged between the limiting rod and the winding rod. The installation operation is simple and efficient. During installation, it is necessary to ensure that the winding sleeve rotates around the axis of the fixed shaft by a certain angle, so that the spring has a certain elastic potential energy, and the winding sleeve will always pull the silk screen mesh, so as to ensure that the silk screen mesh has a suitable elastic tension. Since the distance between the limiting grooves at both ends of the limiting plate remains unchanged, it is ensured that after installation, the tension of the silk screen mesh is within a certain range, reducing the possibility of the silk screen mesh being torn.

[0015] 2. When the utility model is in use, when it is found that the tension of the silk screen mesh is insufficient during the installation of the silk screen mesh, the second limiting block can be taken out and rotated 90°, so that the elastic potential energy of the spring increases, thereby increasing the pulling force of the winding sleeve on the silk screen mesh to increase the tension of the silk screen mesh. Then, the second limiting block is placed inside the corresponding limiting groove to maintain the elastic potential energy of the spring and realize the adjustment of the tension of the silk screen mesh. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The following further describes the present utility model with reference to the accompanying drawings.

[0017] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0018] Figure 2 is an exploded schematic diagram of the overall structure of the present utility model;

[0019] Figure 3 is a schematic diagram of the structure of the limiting rod of the present utility model;

[0020] Figure 4 is a schematic diagram of the longitudinal section of the overall structure of the present utility model;

[0021] Figure 5 is a schematic diagram of the structure of the upper mounting frame of the present utility model;

[0022] Figure 6 is a schematic diagram of the longitudinal section of the winding rod of the present utility model.

[0023] In the figure: 1. Lower mounting frame; 2. Limiting plate; 3. Limiting groove; 4. First L-shaped clamping plate; 5. Limiting rod; 501. Pull rod; 502. First limiting block; 6. Silk screen mesh; 7. Winding rod; 701. Fixed shaft; 702. Second limiting block; 703. Winding sleeve; 704. Spring; 8. Upper mounting frame; 9. Second L-shaped clamping plate; 10. Pressing frame; 11. Locking U-shaped sliding plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts belong to the scope of protection of the present invention.

[0025] As Figures 1 - 6 shown, a printing screen frame that is easy to disassemble includes a lower mounting frame 1 and an upper mounting frame 8. The lower mounting frame 1 and the upper mounting frame 8 cooperate with each other, and the upper mounting frame 8 is buckled on the lower mounting frame 1. The device further includes a locking component for locking the positions of the lower mounting frame 1 and the upper mounting frame 8, a screen printing mesh 6 for printing, a limiting rod 5 for fixing the screen printing mesh 6, and a winding rod 7. A limiting plate 2 is fixedly connected inside the lower mounting frame 1. Limiting grooves 3 that cooperate with the limiting rod 5 and the winding rod 7 are opened at both ends of the limiting plate 2. The limiting grooves 3 are used to limit the limiting rod 5 and the winding rod 7. The limiting rod 5 includes a pull rod 501. First limiting blocks 502 that are fitted with the corresponding limiting grooves 3 are fixedly connected to both ends of the pull rod 501. The winding rod 7 includes a tension maintaining component for maintaining the tension of the screen printing mesh 6. Second limiting blocks 702 that are fitted with the corresponding limiting grooves 3 are arranged on both sides of the tension maintaining component. The shapes of the first limiting blocks 502 and the second limiting blocks 702 match the shape of the limiting grooves 3, so that the first limiting blocks 502 and the second limiting blocks 702 can be exactly embedded into the limiting grooves 3. Since the distance between the limiting grooves 3 at both ends of the limiting plate 2 remains unchanged, it is ensured that after installation, the tension of the screen printing mesh 6 is within a certain range. The tension maintaining component can adjust the tension of the screen printing mesh 6, thereby ensuring the usability of the screen printing mesh 6. The screen printing mesh 6 is clamped between the lower mounting frame 1 and the upper mounting frame 8, playing a role in fixing the screen printing mesh 6, thereby maintaining the tension on the screen printing mesh 6.

[0026] In some specific embodiments, in order to ensure that the screen printing mesh 6 has a certain elasticity when the staff adjusts the tension of the screen printing mesh 6, the tension maintaining assembly includes a fixed shaft 701 fixedly connected between two groups of second limit blocks 702. A winding sleeve 703 is rotatably sleeved outside the fixed shaft 701. A spring 704 for driving the winding sleeve 703 to reset is arranged between the winding sleeve 703 and the fixed shaft 701. When the winding sleeve 703 rotates along the axis of the fixed shaft 701, a corresponding amount of elastic potential energy will be stored in the spring 704, which is used to drive the winding sleeve 703 to rotate in the reverse direction. One end of the screen printing mesh 6 is fixedly connected to the winding sleeve 703, and the other end is fixedly connected to the pull rod 501. When installing the screen printing mesh 6, the limit rod 5 and the winding rod 7 need to be installed on the corresponding limit grooves 3, so as to stretch the screen printing mesh 6 arranged between the limit rod 5 and the winding rod 7. During installation, it is necessary to ensure that the winding sleeve 703 rotates around the axis of the fixed shaft 701 by a certain angle, so that the spring 704 has a certain amount of elastic potential energy, so that the winding sleeve 703 will always pull the screen printing mesh 6, so as to ensure that the screen printing mesh 6 has an appropriate elastic tension.

[0027] In some specific embodiments, in order to fix the lower mounting frame 1 and the upper mounting frame 8, the locking assembly includes first L-shaped clamping plates 4 fixedly connected to both sides of the lower mounting frame 1, second L-shaped clamping plates 9 fixedly connected to both sides of the upper mounting frame 8, and a locking U-shaped sliding plate 11 for limiting the first L-shaped clamping plates 4 and the second L-shaped clamping plates 9. There are two groups of locking U-shaped sliding plates 11, which are respectively arranged on both sides of the lower mounting frame 1 and the upper mounting frame 8 in a matching manner. A groove body for limiting the first L-shaped clamping plates 4 and the second L-shaped clamping plates 9 is formed on the locking U-shaped sliding plate 11. The first L-shaped clamping plates 4 and the second L-shaped clamping plates 9 are locked by the locking U-shaped sliding plate 11, so as to fix the lower mounting frame 1 and the upper mounting frame 8.

[0028] In some specific embodiments, in order to clamp the screen printing mesh 6, a pressing frame 10 for pressing the screen printing mesh 6 is fixedly connected inside the upper mounting frame 8. When the lower mounting frame 1 and the upper mounting frame 8 are buckled together, the pressing frame 10 on the upper mounting frame 8 will directly press against the inner side of the lower mounting frame 1, and at the same time clamp and fix the screen printing mesh 6, so as to fix the screen printing mesh 6, which is convenient for the staff to perform printing.

[0029] In some specific embodiments, in order to adjust the tension, the top of the limit plate 2 is in contact with the inner wall of the upper mounting frame 8. The longitudinal section of the first limit block 502 is square, and the sizes of the first limit block 502 and the second limit block 702 are the same. The size of the limit groove 3 is adapted to the first limit block 502 and the second limit block 702. After long-term use, the silk screen mesh 6 will deform, and at the same time, the spring 704 is also prone to elastic fatigue after long-term use, which is likely to affect the tension of the silk screen mesh 6. In order to ensure that the tension of the silk screen mesh 6 is within a suitable range, when it is found that the tension of the silk screen mesh 6 is insufficient during the installation of the silk screen mesh 6, the second limit block 702 can be taken out and rotated by 90°, so that the elastic potential energy of the spring 704 increases, thereby increasing the pulling force of the winding sleeve 703 on the silk screen mesh 6 to increase the tension of the silk screen mesh 6. Then, the second limit block 702 is placed inside the corresponding limit groove 3, so as to maintain the elastic potential energy of the spring 704 and complete the adjustment of the tension of the silk screen mesh 6.

[0030] To facilitate the understanding of the embodiments of this solution by those skilled in the art, the working principle of the embodiments of this solution will be described below in combination with specific application scenarios:

[0031] During use, the staff can select the silk screen mesh 6 with a suitable pattern according to needs, pull the limit rods 5 and the winding rods 7 on both sides of the silk screen mesh 6, and install the first limit block 502 on the limit rod 5 and the second limit block 702 on the winding rod 7 into the corresponding limit grooves 3, so as to stretch the silk screen mesh 6 arranged between the limit rod 5 and the winding rod 7. When installing, it is necessary to ensure that the winding sleeve 703 rotates around the axis of the fixed shaft 701 by a certain angle, so that the spring 704 has a certain amount of elastic potential energy, so that the winding sleeve 703 will always pull the silk screen mesh 6, so as to ensure that the silk screen mesh 6 has a suitable elastic tension. Since the distance between the limit grooves 3 at both ends of the limit plate 2 remains unchanged, it is ensured that after installation, the tension of the silk screen mesh 6 is within a certain range, reducing the possibility of the silk screen mesh 6 being torn;

[0032] Then, the upper mounting frame 8 is buckled on the lower mounting frame 1, and the first L-shaped clamping plate 4 and the second L-shaped clamping plate 9 are locked through the locking U-shaped slide plate 11, so as to fix the lower mounting frame 1 and the upper mounting frame 8. After the upper mounting frame 8 is installed, the pressing frame 10 on the upper mounting frame 8 will directly press against the inner side of the lower mounting frame 1, and at the same time clamp and fix the silk screen mesh 6, so as to maintain the tension on the silk screen mesh 6 and facilitate the staff to perform printing;

[0033] After the silk screen mesh 6 is used for a long time, it will be deformed. At the same time, the spring 704 is also prone to elastic fatigue after being used for a long time, which is likely to affect the tension of the silk screen mesh 6. When it is found that the tension of the silk screen mesh 6 is insufficient during the installation of the silk screen mesh 6, the second limit block 702 can be taken out and rotated by 90°, so that the elastic potential energy of the spring 704 increases, thereby increasing the pulling force of the winding sleeve 703 on the silk screen mesh 6 to increase the tension of the silk screen mesh 6. Then, the second limit block 702 is placed in the corresponding limit groove 3 to maintain the elastic potential energy of the spring 704 and realize the adjustment of the tension of the silk screen mesh 6.

[0034] The above has described an embodiment of the present invention in detail, but the described content is only the preferred embodiment of the present invention and cannot be considered as limiting the scope of implementation of the present invention. All equal changes and improvements made according to the scope of the application of the present invention should still fall within the scope covered by the patent of the present invention.

Claims

1. A printing screen frame that is easy to disassemble, comprising a lower mounting frame (1) and an upper mounting frame (8), the lower mounting frame (1) and the upper mounting frame (8) cooperate with each other, characterized in that , further comprising: a locking component for locking the positions of the lower mounting frame (1) and the upper mounting frame (8), a silk screen mesh (6) for printing, a limiting rod (5) and a winding rod (7) for fixing the silk screen mesh (6). A limiting plate (2) is fixedly connected inside the lower mounting frame (1). Limiting grooves (3) adapted to the limiting rod (5) and the winding rod (7) are formed at both ends of the limiting plate (2). The limiting rod (5) includes a pull rod (501). First limiting blocks (502) adapted to the corresponding limiting grooves (3) are fixedly connected to both ends of the pull rod (501). The winding rod (7) includes a tension maintaining component for maintaining the tension of the silk screen mesh (6). Second limiting blocks (702) adapted to the corresponding limiting grooves (3) are arranged on both sides of the tension maintaining component. The silk screen mesh (6) is arranged between the pull rod (501) and the tension maintaining component in a matching manner. The silk screen mesh (6) is clamped between the lower mounting frame (1) and the upper mounting frame (8).

2. The printing screen frame that is easy to disassemble according to claim 1, characterized in that, The tension maintaining component includes a fixed shaft (701) fixedly connected between two groups of second limiting blocks (702). A winding sleeve (703) is rotatably sleeved outside the fixed shaft (701). An elastic component for driving the winding sleeve (703) to reset is arranged between the winding sleeve (703) and the fixed shaft (701). One end of the silk screen mesh (6) is fixedly connected to the winding sleeve (703), and the other end is fixedly connected to the pull rod (501).

3. A printing screen frame that is easy to disassemble according to claim 1, characterized in that, The locking component includes first L-shaped clamping plates (4) fixedly connected to both sides of the lower mounting frame (1), second L-shaped clamping plates (9) fixedly connected to both sides of the upper mounting frame (8), and a locking U-shaped sliding plate (11) for limiting the first L-shaped clamping plates (4) and the second L-shaped clamping plates (9).

4. A printing screen frame that is easy to disassemble according to claim 1, wherein, A pressing frame (10) for pressing the silk screen mesh (6) is fixedly connected inside the upper mounting frame (8).

5. The printing screen frame that is easy to disassemble according to claim 2, characterized in that, The elastic component includes a spring (704) arranged between the winding sleeve (703) and the fixed shaft (701) in a matching manner.

6. The detachable printing screen frame according to claim 4, wherein, The top of the limiting plate (2) is in contact with the inner wall of the upper mounting frame (8). The longitudinal section of the first limiting block (502) is square. The first limiting block (502) and the second limiting block (702) have the same size. The size of the limiting groove (3) is adapted to the first limiting block (502) and the second limiting block (702).

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