Adjustable printing screen frame

Abstract

The utility model discloses an adjustable printing net frame, and relates to the technical field of printing net frames. The screen frame comprises a screen frame body and screen cloth, the screen frame body is composed of four side frames, each side frame comprises a main sectional material, a plurality of adjusting plates and a plurality of pressing strips, the main sectional material is of a U-shaped steel structure, a plurality of sliding edges are linearly arranged in the main sectional material, the sliding edges are parallel to the width direction of the main sectional material, and a plurality of adjusting screw rods staggered with the sliding edges are arranged on the main sectional material in a penetrating mode. Sliding grooves are formed in the bottoms of the adjusting plates, and the multiple adjusting plates are linearly arranged in the main profile and slidably connected with the sliding edges through the sliding grooves. Connection between the edge of the screen cloth and the adjusting plate is achieved through the pressing strips, connection strength is improved through connection in a mechanical fixing method, meanwhile, the problems of easy corrosion and glue failure caused by glue connection are solved, rapid adjustment can be achieved through the adjustable capacity between the adjusting plate and the main sectional material when the problem of screen shrinkage occurs, screen replacement is not needed, and the production efficiency is improved. The use effect and the service life of the screen cloth are improved.

Description

Technical Field

[0001] This utility model belongs to the field of screen printing frame technology, and in particular relates to an adjustable screen printing frame. Background Technology

[0002] Existing screen printing meshes require mounting on a frame, typically made of wood or aluminum. While methods such as adhesive bonding, mechanical fixing, and stretching with a tensioning machine combined with adhesive bonding can be used, all have the following drawbacks:

[0003] 1. Traditional adhesive bonding method: Relies on glue for bonding, which takes a long time to cure, affecting production efficiency. At the same time, the glue is easily corroded by solvents, and it is easy to come apart after long-term use. It is impossible to adjust the tension, and the entire mesh needs to be replaced after it loosens.

[0004] 2. Mechanical fixing method: This method uses a long pressure plate and multiple screws for fixing, which can easily lead to uneven local tension and makes it impossible to quickly adjust the tension.

[0005] 3. Glue application using a stretching machine: This method requires a dedicated stretching machine, which is expensive and still relies on glue, making it difficult to quickly replace the mesh. Summary of the Invention

[0006] The purpose of this utility model is to provide an adjustable screen printing frame. The connection between the edge of the screen and the adjustment plate is achieved by pressure strips. The mechanical fixing method is used to improve the connection strength and avoid the problems of easy corrosion and delamination caused by glue connection. Through the adjustability between the adjustment plate and the main profile, the screen shrinkage problem can be quickly adjusted without replacing the screen, thus improving the use effect and life of the screen.

[0007] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0008] This utility model is an adjustable printing screen frame, including a frame body and a screen fabric, wherein the frame body is composed of four side frames;

[0009] The side frame includes a main profile, several adjusting plates, and several pressure strips;

[0010] The main profile is a U-shaped steel structure. Several sliding edges are linearly provided inside the main profile. The sliding edges are parallel to the width direction of the main profile. Several adjusting screws that are misaligned with the sliding edges are provided through the main profile.

[0011] The bottom of the adjustment plate is provided with a sliding groove, and a plurality of adjustment plates are linearly arranged in the main profile and are slidably connected to the sliding edge through the sliding groove. The plurality of adjustment plates are respectively threadedly connected to a plurality of adjustment screws.

[0012] The top surface of the adjustment plate is provided with an embedding groove parallel to the length direction of the main profile, and the pressure strip is fixed in the embedding groove by fastening screws;

[0013] The main profile ends and adjustment plate ends of the side frames are provided with cuts. The four side frames are distributed in a rectangular shape. The profile ends of adjacent side frames are welded together, and the adjustment plate ends of adjacent side frames do not interfere with each other.

[0014] The mesh fabric covers the space formed between the four side frames, and the edges of the mesh fabric are fixed between the pressure strip and the embedding groove.

[0015] Furthermore, the adjusting plate is provided with a preset opening that penetrates the embedded groove, the pressure strip is provided with a threaded mounting opening that mates with the preset opening, and the fastening screw is disposed in the preset opening and the threaded mounting opening.

[0016] Furthermore, the height of the side of the main profile away from the mesh is lower than the preset opening, and the upper surface of the adjustment plate is higher than the side of the main profile.

[0017] Furthermore, one end of the adjusting screw is rotatably connected to the inner side of the main profile, and the other end of the adjusting screw passes through the outer side of the main profile and is connected to a throttle handle.

[0018] Furthermore, the sliding edge has a dovetail groove structure or a convex shape structure, and the sliding edges are evenly spaced in pairs.

[0019] Furthermore, the pressure strip is interference-fitted into the embedding groove at the edge of the mesh fabric, and a rubber layer is provided on the contact surface between the pressure strip and the mesh fabric.

[0020] This utility model has the following beneficial effects:

[0021] This invention uses a pressure strip to connect the edge of the mesh fabric to the adjusting plate, employing a mechanical fixing method to improve connection strength while avoiding corrosion and delamination problems caused by glue connections. The adjustable capability between the adjusting plate and the main profile allows for quick adjustments in case of mesh shrinkage, eliminating the need for mesh replacement and improving the mesh fabric's performance and lifespan. Furthermore, the entire mesh frame can be reused repeatedly, enabling rapid mesh stretching and replacement without the need for a stretching machine, simplifying operation. Additionally, by dividing the pressure strip into multiple segments, the tension of each segment can be adjusted independently, allowing for targeted reinforcement of the slack area and ensuring uniform tension.

[0022] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a structural schematic diagram of an adjustable printing screen frame according to the present invention;

[0025] Figure 2 This is a structural diagram of the side frame after the section has been cut off.

[0026] Figure 3 This is a sectional view of the structure at the side frame adjusting screw.

[0027] Figure 4 This is a structural sectional view at the sliding edge of the side frame;

[0028] The attached diagram lists the components represented by each number as follows:

[0029] 1-Side frame, 2-Main profile, 3-Adjusting plate, 4-Pressure strip, 5-Mesh fabric, 201-Sliding edge, 202-Adjusting screw, 203-Slit, 204-Turn handle, 301-Sliding groove, 302-Embedded groove, 303-Preset opening, 401-Fasting screw, 402-Threaded mounting opening. Detailed Implementation

[0030] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0031] Please see Figure 1-4 As shown, this utility model is an adjustable screen printing frame, including a frame body and a screen fabric 5. The frame body is composed of four side frames 1.

[0032] The side frame 1 includes a main profile 2, several adjusting plates 3 and several pressure strips 4;

[0033] The main profile 2 is a U-shaped steel structure. Several sliding edges 201 are linearly provided inside the main profile 2. The sliding edges 201 are parallel to the width direction of the main profile 2. Several adjusting screws 202 that are misaligned with the sliding edges 201 are provided through the main profile 2.

[0034] The bottom of the adjustment plate 3 is provided with a sliding groove 301. Several adjustment plates 3 are linearly arranged in the main profile 2 and are slidably connected to the sliding edge 201 through the sliding groove 301. Several adjustment plates 3 are respectively threadedly connected to several adjustment screws 202.

[0035] The top surface of the adjusting plate 3 is provided with an embedding groove 302 parallel to the length direction of the main profile 2, and the pressure strip 4 is fixed in the embedding groove 302 by fastening screws 401;

[0036] The ends of the main profiles 2 and the ends of the adjustment plates 3 at both ends of the side frame 1 are provided with cutouts 203. The four side frames 1 are distributed in a rectangular shape. The ends of the profiles of adjacent side frames 1 are welded together, and the ends of the adjustment plates 3 of adjacent side frames 1 do not interfere with each other.

[0037] The mesh fabric 5 covers the space formed between the four side frames 1, and the edge of the mesh fabric 5 is fixed between the pressure strip 4 and the embedding groove 302.

[0038] Among them, such as Figure 3 As shown, the adjusting plate 3 is provided with a preset opening 303 that penetrates the embedded groove 302, and the pressure strip 4 is provided with a threaded mounting opening 402 that mates with the preset opening 303. The fastening screw 401 is provided in the preset opening 303 and the threaded mounting opening 402.

[0039] Among them, such as Figure 3-4 As shown, the height of the side of the main profile 2 away from the mesh 5 is lower than the preset opening 303, and the upper surface of the adjusting plate 3 is higher than the side of the main profile 2.

[0040] Among them, such as Figure 2-4 As shown, one end of the adjusting screw 202 is rotatably connected to the inner side of the main profile 2, and the other end of the adjusting screw 202 passes through the outer side of the main profile 2 and is connected to the handle 204.

[0041] Among them, such as Figure 2 As shown, the sliding edge 201 has a dovetail groove structure or a convex shape structure, and the sliding edges 201 are evenly spaced in pairs.

[0042] The pressure strip 4 is interference-fitted into the embedded groove 302 at the edge of the mesh fabric 5. A rubber layer is provided on the contact surface between the pressure strip 4 and the mesh fabric 5, which serves to protect the mesh fabric 5.

[0043] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0044] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An adjustable printing screen frame, comprising a frame body and a screen fabric (5), characterized in that: The frame body is composed of four side frames (1); The side frame (1) includes a main profile (2), several adjusting plates (3) and several pressure strips (4); The main profile (2) is a U-shaped steel structure. Several sliding edges (201) are linearly provided inside the main profile (2). The sliding edges (201) are parallel to the width direction of the main profile (2). Several adjusting screws (202) that are misaligned with the sliding edges (201) are provided through the main profile (2). The bottom of the adjustment plate (3) is provided with a sliding groove (301), and a plurality of adjustment plates (3) are linearly arranged in the main profile (2) and are slidably connected to the sliding edge (201) through the sliding groove (301). The plurality of adjustment plates (3) are respectively threadedly connected to a plurality of adjustment screws (202). The top surface of the adjustment plate (3) is provided with an embedding groove (302) parallel to the length direction of the main profile (2), and the pressure strip (4) is fixed in the embedding groove (302) by fastening screws (401); The main profile (2) ends and the adjustment plate (3) ends of the side frame (1) are provided with cuts (203). The four side frames (1) are distributed in a rectangular shape. The profile ends of two adjacent side frames (1) are welded together. The adjustment plate (3) ends of two adjacent side frames (1) do not interfere with each other. The mesh fabric (5) covers the space formed between the four side frames (1), and the edge of the mesh fabric (5) is fixed between the pressure strip (4) and the embedding groove (302).

2. An adjustable printing screen frame according to claim 1, characterized in that, The adjusting plate (3) is provided with a preset opening (303) through the embedded groove (302), and the pressure strip (4) is provided with a threaded mounting opening (402) that cooperates with the preset opening (303). The fastening screw (401) is set in the preset opening (303) and the threaded mounting opening (402).

3. An adjustable printing screen frame according to claim 2, characterized in that, The side of the main profile (2) away from the mesh (5) is lower than the preset opening (303), and the upper surface of the adjustment plate (3) is higher than the side of the main profile (2).

4. An adjustable printing screen frame according to claim 1, characterized in that, One end of the adjusting screw (202) is rotatably connected to the inner side of the main profile (2), and the other end of the adjusting screw (202) passes through the outer side of the main profile (2) and is connected to a throttle (204).

5. An adjustable printing screen frame according to claim 1, characterized in that, The sliding edge (201) is a dovetail groove structure or a convex shape structure, and the sliding edges (201) are evenly spaced in pairs.

6. An adjustable printing screen frame according to claim 1, characterized in that, The pressure strip (4) is interference-fitted into the embedding groove (302) through the edge of the mesh (5), and a rubber layer is provided on the contact surface between the pressure strip (4) and the mesh (5).

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