Silk screen plate

Abstract

The utility model provides a silk screen plate which comprises a silk screen, a screen frame arranged on the upper side of the silk screen, first tensioning assemblies arranged on the left side and the right side of the screen frame and capable of being fixedly connected with the left side and the right side of the silk screen respectively, and second tensioning assemblies arranged on the front side and the rear side of the screen frame and fixedly connected with the front side and the rear side of the silk screen respectively. The conductive plate is arranged on the screen frame, connected with the silk screen and used for connecting current, the insulating assembly is arranged on the screen frame and enables the screen frame and the silk screen to be connected in an insulating mode, and the first tensioning assembly and the second tensioning assembly are detachably connected with the screen frame. The silk screen can bear pulling force in four directions, the middle of the silk screen is in a tensioned state, the silk screen is not prone to loosening, the service life of the silk screen is prolonged, the printing effect is guaranteed, the first tensioning assembly and the second tensioning assembly are detachably connected with the screen frame, the state of the silk screen can be adjusted conveniently, later maintenance and use are facilitated, and production efficiency is improved. And by arranging the insulating component, the safety of the equipment is protected and electric leakage is not easy to occur when the equipment is electrified.

Description

Technical Field

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

[0002] Thick-film heating plates are heating devices made by printing insulating media, heating resistors, conductors, and insulating protective layers onto a substrate, such as stainless steel plate, ceramic, glass, or aluminum plate, using a thick-film screen printing process, followed by high-temperature sintering. Currently, thick-film heating plate technology has gradually matured. It not only has extremely high thermal efficiency, but also features excellent thermal conductivity, large heat dissipation area, and high safety performance, thus it is widely used in various household appliances, instruments, and other heating fields.

[0003] Currently, most screen printing stencils used in the production of thick film heating plates only consist of a frame and a screen, with a relatively simple structure. After a period of use, the screen is prone to loosening and affecting the printing effect, thus requiring frequent adjustments and replacements of the screen. This cannot guarantee continuous printing on the thick film heating plate, resulting in low production efficiency. Utility Model Content

[0004] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a screen printing stencil to solve the problem that screen printing is prone to loosening and deformation, which affects the printing effect.

[0005] To achieve the above and other related objectives, this utility model provides a screen printing stencil, including a screen, a frame disposed on the upper side of the screen, a first tensioning assembly disposed on the left and right sides of the frame and capable of fixing and connecting the left and right sides of the screen, and a second tensioning assembly disposed on the front and rear sides of the frame and fixing and connecting the front and rear sides of the screen, and further including a conductive plate disposed on the frame and connected to the screen for connecting to an incoming current, and an insulating assembly disposed on the frame to insulate the frame from the screen. The first tensioning assembly and the second tensioning assembly are detachably connected to the frame.

[0006] By adopting the above technical solution, the screen can be tensioned in four directions by the screen frame contacting the screen, the first tensioning component cooperating with the screen frame to contact and tighten the left and right sides of the screen, and then the second tensioning component cooperating with the screen frame to contact and tighten the front and rear sides of the screen. This keeps the screen in a taut state in the middle, making the screen less prone to loosening, extending the service life of the screen, and ensuring printing effect. Furthermore, the first and second tensioning components are detachably connected to the screen frame, making it easier to adjust the state of the screen and facilitate later maintenance and use. By setting up an insulation component, the equipment is protected and leakage is prevented when the power is on.

[0007] In one embodiment of this utility model, the wire frame is configured as a rectangular frame, the wire frame is horizontally positioned, and the lower side of the wire frame is in contact with and connected to the wire mesh.

[0008] By adopting the above technical solution, the rectangular frame makes it easier to connect the first tensioning component and the second tensioning component, and makes it easier to install the wire mesh on the frame.

[0009] In one embodiment of the present invention, the first tensioning component includes a first support plate horizontally disposed on the left and right sides of the mesh frame, a first fixing plate disposed opposite to the lower side of the first support plate and capable of pressing and fixing the wire mesh, and a first fastener connecting the first support plate and the first fixing plate. The first support plate is integrally formed with the upper side of the mesh frame.

[0010] By adopting the above technical solution, the first support plate and the first fixed plate cooperate to abut and clamp the two sides of the wire mesh, thereby tensioning the two sides of the wire mesh. The first fastener allows the first support plate and the first fixed plate to be detachably connected, which facilitates the clamping and fixing of the wire mesh.

[0011] In one embodiment of the present invention, the second tensioning assembly includes a second support plate horizontally disposed on the front and rear sides of the mesh frame, a second fixing plate disposed opposite to the lower side of the second support plate and capable of pressing and fixing the wire mesh, and a second fastener connecting the second support plate and the second fixing plate. The second support plate is integrally formed with the upper side of the mesh frame, the second fixing plate is in contact with the wire mesh, and the conductive plate is connected to the second fixing plate.

[0012] By adopting the above technical solution, the second support plate and the second fixing plate cooperate to abut and clamp the front and rear sides of the wire mesh, so that the wire mesh is tensioned, and the second fixing plate and the second support plate are detachably connected by the second fastener, which is convenient for installation and use.

[0013] In one embodiment of the present invention, the insulating component includes a first insulating layer disposed between the first support plate and the wire mesh, a second insulating layer disposed between the first fixing plate and the wire mesh, a third insulating layer disposed between the second support plate and the wire mesh, and an insulating gasket disposed on the second support plate.

[0014] By adopting the above technical solution, the first and second insulating layers work together to create an insulated connection between the sidewalls of the wire frame and the sidewalls of the wire mesh, preventing current from being conducted to the first support plate and the first fixing plate when energized. Furthermore, the third insulating layer, in conjunction with an insulating gasket, separates the second support plate from the wire mesh.

[0015] In one embodiment of this utility model, two conductive plates are provided, respectively disposed at the ends of two second fixed plates. The first support plate and the side wall of the mesh frame form an L-shaped structure, and the second support plate and the side wall of the mesh frame form an L-shaped structure.

[0016] By adopting the above technical solution, it is possible to connect to an external power source through two conductive plates, which makes installation easier.

[0017] In one embodiment of the present invention, the first fastener includes a first fastening screw that can pass through the first fixing plate and the first support plate, a first nut that is threadedly engaged with the first fastening screw, and a first washer fitted on the first fastening screw. Multiple sets of the first fastener are provided along the length direction of the first support plate.

[0018] By adopting the above technical solution, the first fixing plate is tightly connected to the first support plate through the threaded engagement of the first fastening screw and the first nut, and multiple sets of first fasteners are used to make the connection between the two more reliable and stable.

[0019] In one embodiment of the present invention, the second fastener includes a second fastening screw that can pass through the second fixing plate and the second support plate, a second nut that is threadedly engaged with the second fastening screw, and a second washer disposed on the second support plate and fitted onto the second fastening screw, wherein the second fastening screw passes through an insulating washer.

[0020] By adopting the above technical solution, the second fixing plate is tightly connected to the second fixing plate through the threaded engagement of the second fastening screw and the second nut, thereby clamping the wire mesh, and the second support plate is insulated from the wire mesh by the setting of the second washer and the insulating gasket.

[0021] As described above, the screen printing stencil of this utility model has the following beneficial effects: the stencil frame abuts against the screen, the first tensioning component cooperates with the stencil frame to abut and tighten the left and right sides of the screen, and then the second tensioning component cooperates with the stencil frame to abut and tighten the front and rear sides of the screen, thereby allowing the screen to be subjected to tension in four directions, keeping the middle of the screen in a taut state, preventing the screen from loosening, extending the service life of the screen, and ensuring the printing effect. Furthermore, the first tensioning component and the second tensioning component are detachably connected to the stencil frame, making it easier to adjust the state of the screen and facilitating later maintenance and use. Insulation components are also provided to protect the equipment safety and prevent leakage when energized. Attached Figure Description

[0022] Figure 1 The diagram shown is a three-dimensional schematic representation of the overall structure disclosed in the embodiments of this utility model.

[0023] Figure 2 Shown as an overall side view of the present utility model embodiment;

[0024] Figure 3 Displayed as Figure 2 A magnified view of a portion of point A in the middle;

[0025] Figure 4 Displayed as Figure 2 A magnified view of a portion of point B in the middle;

[0026] Component designation explanation

[0027] 1. Wire mesh; 2. Frame; 3. First tensioning assembly; 4. Second tensioning assembly; 5. Conductive plate; 6. Insulation assembly;

[0028] 20. First support plate; 21. First fixing plate; 22. First fastener;

[0029] 201. First fastening screw; 202. First nut; 203. First washer;

[0030] 30. Second support plate; 31. Second fixing plate; 32. Second fastener;

[0031] 301. Second fastening screw; 302. Second nut; 303. Second washer;

[0032] 40. First insulating layer; 41. Second insulating layer; 42. Third insulating layer; 43. Insulating gasket. Detailed Implementation

[0033] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0034] Please see Figures 1 to 4 It should be understood that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this invention, should still fall within the scope of the disclosed technical content. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0035] like Figure 1 As shown, this utility model provides a screen printing stencil, including a screen 1, a frame 2 disposed on the upper side of the screen 1, a first tensioning component 3 disposed on the left and right sides of the frame 2 and capable of fixing and connecting the left and right sides of the screen 1 respectively, and a second tensioning component 4 disposed on the front and rear sides of the frame 2 and capable of fixing and connecting the front and rear sides of the screen 1 respectively. The screen 1 can be tensioned in all directions by the cooperation of the first tensioning component 3 and the second tensioning component 4 with the frame 2.

[0036] The wire frame 2 is set as a rectangular frame. The wire frame 2 is set horizontally, and the lower side of the wire frame 2 is in contact with the wire mesh 1.

[0037] like Figure 2 As shown, the first tensioning assembly 3 includes a first support plate 20 horizontally arranged on the left and right sides of the mesh frame 2, a first fixing plate 21 arranged opposite to the lower side of the first support plate 20 to press and fix the wire mesh 1, and a first fastener 22 connecting the first support plate 20 and the first fixing plate 21. The first support plate 20 is integrally formed with the upper side of the mesh frame 2.

[0038] The wire mesh 1 is folded upwards along the side wall of the frame 2 by means of the frame 2, and then the folded wire mesh 1 is folded horizontally so that it is located under the first support plate 20 and is set parallel to the first support plate 20. Then, the first fixing plate 21 is installed under the first support plate 20 by means of the first fastener 22, so that the first fixing plate 21 cooperates with the first support plate 20 to clamp the wire mesh 1.

[0039] like Figure 3 As shown, the first fastener 22 includes a first fastening screw 201 that can pass through the first fixing plate 21 and the first support plate 20, a first nut 202 that is threadedly engaged with the first fastening screw 201, and a first washer 203 that is sleeved on the first fastening screw 201. Multiple sets of the first fastener 22 are provided along the length direction of the first support plate 20.

[0040] Multiple sets of first fasteners 22 can tightly connect the first support plate 20 and the first fixed plate 21, making the connection between the two more stable, and the first tensioning component 3 abuts against the left and right sides of the tensioning wire mesh 1.

[0041] like Figure 2 As shown, the second tensioning assembly 4 includes a second support plate 30 horizontally arranged on the front and rear sides of the mesh frame 2, a second fixing plate 31 arranged opposite to the lower side of the second support plate 30 to press and fix the wire mesh 1, and a second fastener 32 connecting the second support plate 30 and the second fixing plate 31. The second support plate 30 is integrally formed with the upper side of the mesh frame 2.

[0042] The wire mesh 1 can be folded upwards on both the front and rear sides through the frame 2 and connected to the second fixing plate 31, so that the wire mesh 1 and the second fixing plate 31 can conduct electricity. The second fixing plate 31 is then fixedly connected to the second support plate 30 by fasteners. The second fixing plate 31 and the second support plate 30 clamp the wire mesh 1, so that the front and rear sides of the wire mesh 1 are taut.

[0043] like Figure 4 As shown, the second fastener 32 includes a second fastening screw 301 that can pass through the second fixing plate 31 and the second support plate 30, a second nut 302 that is threadedly engaged with the second fastening screw 301, and a second washer 303 that is disposed on the second support plate 30 and sleeved on the second fastening screw 301.

[0044] The mesh frame 2 is also provided with conductive plates 5 connected to the wire mesh 1 for receiving current. There are two conductive plates 5, which are respectively set on two second fixed plates 31. The two conductive plates 5 are respectively connected to the positive and negative terminals of the external power supply to power the wire mesh 1.

[0045] The frame 2 is also provided with an insulating component 6 that provides an insulating connection between the frame 2 and the wire mesh 1. The insulating component 6 includes a first insulating layer 40 disposed between the first support plate 20 and the wire mesh 1, a second insulating layer 41 disposed between the first fixing plate 21 and the wire mesh 1, a third insulating layer 42 disposed between the second support plate 30 and the wire mesh 1, and an insulating gasket 43 disposed on the second support plate 30. The second fastening screw 301 can pass through the insulating gasket 43. Both the first fastener 22 and the second fastener can be made of insulating material.

[0046] In summary, this utility model allows the screen frame 2 to contact the screen 1, the first tensioning component 3 to cooperate with the screen frame 2 to contact and tighten the left and right sides of the screen 1, and the second tensioning component 4 to cooperate with the screen frame 2 to contact and tighten the front and rear sides of the screen 1. This allows the screen 1 to be subjected to tension in four directions, keeping the middle of the screen 1 in a taut state, preventing the screen 1 from becoming loose, extending the service life of the screen 1, and ensuring printing effect. Furthermore, the first tensioning component 3 and the second tensioning component 4 are detachably connected to the screen frame 2, making it easier to adjust the state of the screen 1 and facilitating later maintenance and use. By setting the insulation component 6, the device is protected from leakage when energized.

[0047] Therefore, this utility model effectively overcomes the various shortcomings of the prior art and has high industrial application value.

[0048] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A screen printing stencil, characterized in that, The device includes a wire mesh, a frame disposed on the upper side of the wire mesh, first tensioning components disposed on the left and right sides of the frame and respectively fixedly connected to the left and right sides of the wire mesh, and second tensioning components disposed on the front and rear sides of the frame and respectively fixedly connected to the front and rear sides of the wire mesh. It also includes a conductive plate disposed on the frame and connected to the wire mesh for connecting to the current, and an insulating component disposed on the frame to insulate the frame from the wire mesh. The first tensioning components and the second tensioning components are detachably connected to the frame.

2. The screen printing stencil according to claim 1, characterized in that: The wire frame is a rectangular frame, the wire frame is horizontally positioned, and the lower side of the wire frame is in contact with the wire mesh.

3. The screen printing stencil according to claim 1, characterized in that: The first tensioning assembly includes a first support plate horizontally disposed on the left and right sides of the mesh frame, a first fixing plate disposed opposite to the lower side of the first support plate to press and fix the wire mesh, and a first fastener connecting the first support plate and the first fixing plate. The first support plate is integrally formed with the upper side of the mesh frame.

4. The screen printing stencil according to claim 3, characterized in that: The second tensioning assembly includes a second support plate horizontally disposed on the front and rear sides of the mesh frame, a second fixing plate disposed opposite to the lower side of the second support plate to press and fix the wire mesh, and a second fastener connecting the second support plate and the second fixing plate. The second support plate is integrally formed with the upper side of the mesh frame, the second fixing plate is in contact with the wire mesh, and the conductive plate is connected to the second fixing plate.

5. The screen printing stencil according to claim 4, characterized in that: The insulation assembly includes a first insulation layer disposed between the first support plate and the wire mesh, a second insulation layer disposed between the first fixing plate and the wire mesh, a third insulation layer disposed between the second support plate and the wire mesh, and an insulation gasket disposed on the second support plate.

6. The screen printing stencil according to claim 4, characterized in that: Two conductive plates are provided, respectively located at the ends of the two second fixed plates. The first support plate and the side wall of the mesh frame form an L-shaped structure, and the second support plate and the side wall of the mesh frame form an L-shaped structure.

7. The screen printing stencil according to claim 3, characterized in that: The first fastener includes a first fastening screw that can pass through the first fixing plate and the first support plate, a first nut that is threadedly engaged with the first fastening screw, and a first washer fitted on the first fastening screw. Multiple sets of the first fastener are provided along the length direction of the first support plate.

8. The screen printing stencil according to claim 4, characterized in that: The second fastener includes a second fastening screw that can pass through the second fixing plate and the second support plate, a second nut that is threadedly engaged with the second fastening screw, and a second washer disposed on the second support plate and fitted onto the second fastening screw, wherein the second fastening screw passes through an insulating washer.

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