Wear-resistant printing screen

Abstract

The utility model relates to printing technical field especially relates to a wear -resisting printing screen, including net frame, limit post, glue circle, bottom layer screen gauze, mounting frame, upper layer screen gauze, filter box, sealing cover, filter screen, guide plate and extrusion component, when printing, slurry is poured into the filter box, rotates the extrusion component, and the particulate matter in slurry is blocked in the filter box by the filter screen, and slurry penetrates the filter screen, and flows to the upper layer screen gauze along the guide plate, when slurry penetrates the upper layer screen gauze and flows to the bottom layer screen gauze, uses the scraper to scrape, further the upper layer screen gauze is movably arranged on the limit post, and the user is convenient to replace regularly, solve the problem that the hard particle that possibly exists in slurry can be concentrated on the screen surface under the extrusion of scraper, lead to local stress to exceed the limit of screen material quality, cause abrasion or deformation.

Description

Technical Field

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

[0002] With the continuous development of printing technology for electronic products, the industry has put forward higher technical requirements for printing screens in terms of refinement, brush resistance, and solvent resistance. However, the current printed products are not stable, the plate making is inconvenient, they are easy to deform, not durable, the thickness of the screen is not easy to control, and the screen lines are also easy to misalign.

[0003] The prior art CN205631680U discloses a printing screen, which includes a screen frame, a screen mesh, a first anti-collision block, a second anti-collision block, a third anti-collision block, a fourth anti-collision block, a connecting frame, a first stabilizing block, a second stabilizing block, an operating table, an adhesive ring, a sealing strip, and positioning protrusions. The screen mesh is fixed inside the screen frame by the adhesive ring. The first, second, third, and fourth anti-collision blocks are all connected to the screen frame. The two ends of the connecting frame are connected to the screen frame and the operating table, respectively. The first and second stabilizing blocks are fixed to the two sides of the operating table, respectively. The sealing strip is located inside the adhesive ring, and the positioning protrusions are located on the screen mesh. The structure is simple, easy to operate, has high stability, is not easily deformed, produces high-quality products, is not prone to displacement, has high parallelism, and is durable.

[0004] However, during use, it was found that the above structure may contain hard particles in the slurry. Under the pressure of the scraper, these particles will act on the surface of the mesh, causing local stress to exceed the limit of the mesh material and resulting in wear or deformation. Utility Model Content

[0005] The purpose of this invention is to provide a wear-resistant printing screen, which solves the problem that hard particles may exist in the paste, which will concentrate on the surface of the mesh under the pressure of the squeegee, causing local stress to exceed the limit of the mesh material and resulting in wear or deformation.

[0006] To achieve the above objectives, this utility model provides a wear-resistant printing screen, comprising a screen frame, limiting posts, adhesive rings, a bottom layer mesh, a mounting frame, an upper layer mesh, a filter box, a sealing cap, a filter screen, a guide plate, and an extrusion component. The four limiting posts are respectively fixedly connected to the screen frame and located on the inner sidewall of the screen frame. The bottom layer mesh is fixed below the limiting posts by the adhesive ring. The mounting frame is movably disposed above the four limiting posts. The upper layer mesh is fixedly connected to the mounting frame and located within the mounting frame. The filter box is fixedly connected to the screen frame and located above the screen frame, and the filter box has an installation opening. The sealing cap is detachably connected to the filter box and located above the filter box. The filter screen is fixedly connected to the filter box and located at the installation opening. The guide plate is fixedly connected to the filter box and located below the installation opening. The extrusion component is disposed within the filter box.

[0007] The aperture of the upper mesh is larger than that of the lower mesh.

[0008] The extrusion component includes an extrusion plate, a connecting rod, and a handle. The extrusion plate is movably disposed inside the filter box. The connecting rod is threadedly connected to the filter box and located on the outer side wall of the filter box. The connecting rod passes through the filter box, and the through end of the connecting rod is rotatably connected to the extrusion plate. The handle is fixedly installed at the end of the connecting rod away from the extrusion plate.

[0009] The wear-resistant printing screen also includes a fixing mechanism, which is disposed on the outer side wall of the screen frame.

[0010] The fixing mechanism includes two limiting plates and an anti-slip pad. The two limiting plates are fixedly connected to the mesh frame and located at the end of the mesh frame away from the filter box. The anti-slip pad is fixedly connected to the mesh frame and located below the mesh frame, and the anti-slip pad is provided with anti-slip protrusions.

[0011] This utility model discloses a wear-resistant printing screen. During printing, the ink is poured into the filter box, and the extrusion member is rotated. Particles in the ink are blocked by the filter screen in the filter box. The ink passes through the filter screen and flows along the guide plate to the upper mesh. After the ink passes through the upper mesh and flows to the lower mesh, it is scraped by a scraper. Furthermore, the upper mesh is movably set on the limiting post, which is convenient for users to replace regularly. This solves the problem that hard particles in the ink may be concentrated on the mesh surface under the extrusion of the scraper, causing local stress to exceed the mesh material's bearing limit and leading to wear or deformation. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0013] Figure 1 This is a schematic diagram of the overall structure of the first embodiment of this utility model.

[0014] Figure 2 This is a schematic diagram of the internal structure of the wire frame according to the first embodiment of this utility model.

[0015] Figure 3 yes Figure 2 A magnified view of a portion of point A in the middle.

[0016] Figure 4 This is a schematic diagram of the internal structure of the filter box according to the first embodiment of this utility model.

[0017] Figure 5 This is a schematic diagram of the overall structure of the second embodiment of the present invention.

[0018] Figure 6 This is a bottom view of the overall structure of the second embodiment of this utility model.

[0019] In the diagram: 101-mesh frame, 102-limiting post, 103-glue ring, 104-bottom mesh, 105-mounting frame, 106-upper mesh, 107-filter box, 108-sealing cover, 109-filter screen, 110-guide plate, 111-extrusion plate, 112-connecting rod, 113-handle, 201-limiting plate, 202-anti-slip pad. Detailed Implementation

[0020] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0021] First Embodiment

[0022] Please see Figures 1-4 , Figure 1 This is a schematic diagram of the overall structure of the first embodiment of this utility model. Figure 2 This is a schematic diagram of the internal structure of the wire frame according to the first embodiment of this utility model. Figure 3 yes Figure 2 A magnified view of a portion of point A in the middle. Figure 4 This is a schematic diagram of the internal structure of the filter box according to the first embodiment of this utility model.

[0023] This utility model provides a wear-resistant printing screen, comprising a screen frame 101, a limiting post 102, an adhesive ring 103, a bottom layer mesh 104, a mounting frame 105, an upper layer mesh 106, a filter box 107, a sealing cover 108, a filter screen 109, a guide plate 110, and an extrusion component. The extrusion component includes an extrusion plate 111, a connecting rod 112, and a handle 113. The above structure solves the problem that hard particles may exist in the paste, which will concentrate on the surface of the mesh under the extrusion of the doctor blade, causing local stress to exceed the bearing limit of the mesh material, resulting in wear or deformation.

[0024] In a specific embodiment, the four limiting posts 102 are respectively fixedly connected to the mesh frame 101 and located on the inner sidewall of the mesh frame 101. The bottom mesh 104 is fixed below the limiting posts 102 by the adhesive ring 103. The mounting frame 105 is movably disposed above the four limiting posts 102. The upper mesh 106 is fixedly connected to the mounting frame 105 and located inside the mounting frame 105. The filter box 107 is fixedly connected to the mesh frame 101 and located above the mesh frame 101, and the filter box 107 is provided with an installation port. The sealing cover 108 is detachably connected to the filter box 107 and located above the filter box 107. The filter screen 109 is fixedly connected to the filter box 107 and located at the installation port. The guide plate 1... 10 is fixedly connected to the filter box 107 and located below the mounting port. The extrusion member is disposed inside the filter box 107. During printing, the ink is poured into the filter box 107, and the extrusion member is rotated. Particles in the ink are blocked by the filter screen 109 inside the filter box 107. The ink passes through the filter screen 109 and flows along the guide plate 110 to the upper mesh 106. After the ink flows through the upper mesh 106 to the bottom mesh 104, it is scraped with a scraper. Furthermore, the upper mesh 106 is movably disposed on the limiting post 102, which is convenient for users to replace regularly. This solves the problem that hard particles may exist in the ink, which will concentrate on the mesh surface under the extrusion of the scraper, causing local stress to exceed the limit of the mesh material and causing wear or deformation.

[0025] The upper mesh 106 has a larger aperture than the lower mesh 104. The upper mesh 106 is used to intercept particulate matter and protect the lower mesh 104. The lower mesh 104 is used to perform basic printing functions, allowing the ink to pass through the upper mesh 106 quickly and smoothly. At the same time, it is evenly distributed on the lower mesh 104 and can further intercept particulate matter, preventing damage to the lower mesh 104 when scraping with a squeegee later.

[0026] The extrusion plate 111 is movably disposed within the filter box 107. The connecting rod 112 is threadedly connected to the filter box 107 and is located on the outer side wall of the filter box 107, with the connecting rod 112 penetrating through the filter box 107. The penetrating end of the connecting rod 112 is rotatably connected to the extrusion plate 111. The handle 113 is fixedly installed at the end of the connecting rod 112 away from the extrusion plate 111. In use, the slurry is poured into the filter box 107, and the handle 113 is rotated to drive the connecting rod 112 to rotate. The extrusion plate 111 moves toward the filter screen 109, and the filter screen 109 filters the slurry. The slurry flows along the guide plate 110 to prevent particles from falling onto the upper mesh 106.

[0027] When using the wear-resistant printing screen of this invention, the paste is poured into the filter box 107, and the handle 113 is rotated. The extrusion plate 111 moves towards the filter screen 109, and the filter screen 109 filters the paste. The paste flows along the guide plate 110 to the upper mesh 106. After the paste flows through the upper mesh 106 to the bottom mesh 104, it is scraped with a scraper. The upper mesh 106 can filter particulate matter to a certain extent, further reducing the contact between particulate matter and the bottom mesh. This solves the problem that hard particles may exist in the paste, which will concentrate on the mesh surface under the extrusion of the scraper, causing local stress to exceed the mesh material's bearing limit and leading to wear or deformation.

[0028] Second Embodiment

[0029] Please see Figures 5-6 , Figure 5 This is a schematic diagram of the overall structure of the second embodiment of the present invention. Figure 6 This is a bottom view of the overall structure of the second embodiment of this utility model.

[0030] Based on the first embodiment, the wear-resistant printing screen of this utility model also includes a fixing mechanism, which includes two limiting plates 201 and an anti-slip pad 202.

[0031] In a specific implementation, the fixing mechanism is disposed on the outer side wall of the wire frame 101, and the fixing mechanism is used to fix the wire frame 101.

[0032] The two limiting plates 201 are fixedly connected to the mesh frame 101 and located at the end of the mesh frame 101 away from the filter box 107. The anti-slip pad 202 is fixedly connected to the mesh frame 101 and located below the mesh frame 101. The anti-slip pad 202 is provided with anti-slip protrusions. When fixing the mesh frame 101, a clamping assembly can be used. The clamping assembly is inserted between the two limiting plates 201 to fix the mesh frame 101. At the same time, under the action of the two limiting plates 201 and the clamping assembly, the mesh frame 101 is prevented from sliding. In addition, the anti-slip pad 202 further increases the friction of the mesh frame 101 to prevent sliding.

[0033] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that implementing all or part of the above embodiments and making equivalent changes in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A wear-resistant printing screen, characterized in that, The device includes a mesh frame, limiting posts, adhesive rings, a bottom layer mesh, a mounting frame, an upper layer mesh, a filter box, a sealing cap, a filter screen, a guide plate, and an extrusion component. The four limiting posts are fixedly connected to the mesh frame and located on its inner sidewalls. The bottom layer mesh is fixed below the limiting posts by the adhesive rings. The mounting frame is movably positioned above the four limiting posts. The upper layer mesh is fixedly connected to the mounting frame and located within it. The filter box is fixedly connected to the mesh frame and located above it, with an installation opening. The sealing cap is detachably connected to the filter box and located above it. The filter screen is fixedly connected to the filter box and located at the installation opening. The guide plate is fixedly connected to the filter box and located below it. The extrusion component is located inside the filter box.

2. The wear-resistant printing screen as described in claim 1, characterized in that, The aperture of the upper mesh is larger than that of the lower mesh.

3. The wear-resistant printing screen as described in claim 1, characterized in that, The extrusion component includes an extrusion plate, a connecting rod, and a handle. The extrusion plate is movably disposed inside the filter box. The connecting rod is threadedly connected to the filter box and located on the outer side wall of the filter box. The connecting rod passes through the filter box, and the through end of the connecting rod is rotatably connected to the extrusion plate. The handle is fixedly installed at the end of the connecting rod away from the extrusion plate.

4. The wear-resistant printing screen as described in claim 1, characterized in that, The wear-resistant printing screen also includes a fixing mechanism, which is disposed on the outer wall of the screen frame.

5. The wear-resistant printing screen as described in claim 4, characterized in that, The fixing mechanism includes two limiting plates and an anti-slip pad. The two limiting plates are fixedly connected to the mesh frame and located at the end of the mesh frame away from the filter box. The anti-slip pad is fixedly connected to the mesh frame and located below the mesh frame, and the anti-slip pad is provided with anti-slip protrusions.

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