Electrolytic cell for screen printing

Abstract

This application relates to an electrolytic cell for screen printing stencils, belonging to the field of screen printing stencil technology. It includes a cell body with an inlet pipe and an outlet pipe. Multiple limiting plates are fixed to both sides of the inner wall of the cell body, and the limiting plates are vertically arranged. The space between adjacent limiting plates is for the screen printing stencil to enter. Each limiting plate has a through-hole for installation. Two limiting rods pass through the cell body, passing through positioning holes in the screen printing stencil and into the installation slots. At least two sets of installation slots are arranged vertically. The side wall of the cell body has through holes for the limiting rods to pass through. The technical advantages of this application are: high stability of the screen printing stencil after installation, no contact between adjacent screen printing stencils, and full contact between the screen and electrolyte; the method of picking up and putting in screen printing stencils one by one facilitates operation and has good applicability to screen printing stencils of different sizes.

Description

Technical Field

[0001] This application relates to the field of screen printing plate technology, and in particular to an electrolytic cell for screen printing plates. Background Technology

[0002] Electrolytic etching utilizes the principle of anodic dissolution of metal in an electrolyte, etching the metal under electrolytic action. Screen printing stencils require electrolytic etching during production. Etching-resistant ink is printed onto the metal wire to be etched to protect the areas not subject to electrolysis. Then, electrolytic etching is used to corrode the unprotected metal wire. After electrolysis, the stencil is removed and cleaned to obtain the desired pattern.

[0003] A utility model patent with publication number CN202220207U discloses a novel electrolytic cell structure, comprising a cell body with rounded corners between adjacent sidewalls and between the sidewalls and the cell bottom; an overflow port at the top of the cell body; and a sludge pumping device at the bottom of the cell. The sludge pumping device consists of an outer pipe and an inner flexible tube fitted inside the outer pipe and connected to a sludge pump; the outer pipe includes a horizontal pipe at the bottom of the cell and a vertical pipe on the sidewall, connected by an elbow; and sludge pumping holes are provided on the horizontal pipe and the elbow.

[0004] Regarding the aforementioned technologies, the inventors believe that although electrolytic cells can electrolyze various items, their smooth and flat inner walls make it inconvenient to place and remove screen printing stencils when used for electrolysis. Utility Model Content

[0005] This application provides an electrolytic cell for screen printing stencils, which facilitates the placement and removal of the screen printing stencils by setting a structure that limits the position of the screen printing stencils.

[0006] This application provides an electrolytic cell for screen printing stencils, which adopts the following technical solution:

[0007] An electrolytic cell for screen printing stencils includes a cell body with an inlet pipe and an outlet pipe. Multiple limiting plates are fixed on both sides of the inner wall of the cell body. The limiting plates are vertically arranged and are positioned between adjacent limiting plates to allow the screen printing stencil to enter. The limiting plates have through-holes for mounting grooves. Two limiting rods pass through the cell body and pass through positioning holes in the screen printing stencil and into the mounting grooves.

[0008] By adopting the above technical solution, the limiting rod is positioned in the extraction mounting slot. Holding the screen printing stencil with one hand, place it between adjacent limiting plates, then pull the limiting rod to insert it into the mounting slot and through the positioning hole of the screen printing stencil. Repeat this process to install the screen printing stencils into the slot one by one. After installation, the screen printing stencils are highly stable, and adjacent stencils do not come into contact, allowing the screen portion to fully contact the electrolyte.

[0009] Optionally, at least two sets of mounting slots are provided in the vertical direction, and the side wall of the slot is provided with a through hole for the limiting rod to pass through.

[0010] By adopting the above technical solution, the height of the screen printing stencil can be changed by altering the position of the mounting groove into which the limiting rod enters, thus adapting to screen printing stencils of different sizes. When suspending the stencil, ensure that the screen portion of the stencil is below the liquid surface.

[0011] Optionally, the mounting groove extends horizontally through the limiting plate towards the center of the groove, and the perforation is a strip-shaped hole.

[0012] By adopting the above technical solution, the horizontal extension structure of the mounting groove and perforation can adjust the distance between the two limiting rods, thereby adapting to screen printing plates of different sizes.

[0013] Optionally, an overflow pipe is installed on the side wall of the tank, and the height of the overflow pipe is lower than that of the perforation.

[0014] By adopting the above technical solution, an external container is connected to the overflow pipe to release excess electrolyte, preventing the electrolyte from leaking out of the tank and onto the ground due to the liquid level being higher than the perforation.

[0015] Optionally, an electric heating element is installed on the inner bottom wall of the tank.

[0016] By adopting the above technical solution, the heating element is used to heat the electrolyte to accelerate the electrolysis process.

[0017] Optionally, a support plate is fixed to the inner bottom wall of the groove, and multiple support grooves are provided on the support plate, the support grooves corresponding to the positions between adjacent limiting plates.

[0018] By adopting the above technical solution, when a large-sized screen printing screen is placed in the tank, the bottom of the screen printing screen is placed in the corresponding support groove. At this time, there is no need to hang the screen printing screen with a limiting rod. The support groove prevents the screen printing screen from tilting, thus improving the adaptability of this electrolytic cell to large-sized screen printing screens.

[0019] Optionally, the support plate has a through-hole for liquid flow.

[0020] By adopting the above technical solution, the support plate can be prevented from obstructing the flow of liquid through the liquid passage.

[0021] Optionally, the limiting rod is fixed with a slider, and the two sliders are slidably connected to a connecting plate, with the slider and the connecting plate located outside the groove.

[0022] By adopting the above technical solution, the two limiting rods are kept parallel by sliding connection, which facilitates the adjustment of the distance and also makes it easy to pull the two limiting rods through the connecting plate.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. After installation, the screen printing stencil is highly stable, and adjacent screen printing stencils do not come into contact, allowing the screen part to fully contact the electrolyte.

[0025] 2. The method of picking up and putting in the screen printing stencil one by one is easier to operate;

[0026] 3. It has good applicability to screen printing stencils of different sizes. Attached Figure Description

[0027] Figure 1 This is a perspective view of an electrolytic cell for screen printing stencils according to an embodiment;

[0028] Figure 2 This is an internal structure diagram of an embodiment;

[0029] Figure 3 This is a partial view of an embodiment.

[0030] Explanation of reference numerals in the attached drawings: 1. Tank body; 11. Inlet pipe; 12. Outlet pipe; 2. Limiting plate; 13. Heating element; 21. Mounting groove; 3. Limiting rod; 14. Perforation; 15. Overflow pipe; 31. Sliding block; 32. Connecting plate; 4. Support plate; 41. Support groove; 42. Liquid passage hole. Detailed Implementation

[0031] The present application will be further described in detail below with reference to the accompanying drawings.

[0032] Reference Figure 1 This embodiment discloses an electrolytic cell for screen printing stencils, including a cell body 1. The cell body 1 is provided with an inlet pipe 11 and an outlet pipe 12. The outlet pipe 12 is connected to the inner bottom of the cell body 1, and a valve is installed on the outlet pipe 12. Multiple limiting plates 2 are fixed on both sides of the inner wall of the cell body 1. The limiting plates 2 are vertically arranged, and the space between adjacent limiting plates 2 is used for the screen printing stencil to enter. The spacing between adjacent limiting plates 2 is set to be relatively large, so that after changing to screen printing stencils of different sizes, the screen printing stencil can enter between adjacent limiting plates 2.

[0033] Reference Figure 2 The inner bottom wall of the tank 1 is equipped with an electric heating tube 13. The end of the electric heating tube 13 extends out of the tank 1 and is connected to the power supply. The electric heating tube 13 is bent into an S-shape and is used to heat the electrolyte to accelerate the electrolysis process.

[0034] The screen printing stencil has a screen section located in the center, which is the part that needs to be electrolytically etched. The four corners of the screen printing stencil have positioning holes. The outer frame of the screen printing stencil is quite heavy, and it requires two people to operate when all screen printing stencils are picked up and put down at the same time, which is very laborious.

[0035] A mounting groove 21 is formed through the limiting plate 2. Two limiting rods 3 pass through the groove 1, passing through the positioning holes of the screen printing stencil and into the mounting groove 21. The mounting groove 21 supports the limiting rods 3 through its bottom wall, and the limiting rods 3 hang the screen printing stencil by passing through the positioning holes. At least two sets of mounting grooves 21 are arranged vertically. By changing the position of the limiting rods 3 in the mounting grooves 21, the hanging height of the screen printing stencil can be changed, thus adapting to screen printing stencils of different sizes. When hanging, ensure that the screen part of the screen printing stencil is below the liquid surface.

[0036] Reference Figure 1 The side wall of the groove 1 has a through hole 14 for the limiting rod 3 to pass through. The mounting groove 21 extends horizontally through the limiting plate 2 towards the middle of the groove 1. The through hole 14 is a strip-shaped hole. Through the horizontal extension structure of the mounting groove 21 and the through hole 14, the distance between the two limiting rods 3 can be adjusted, thereby adapting to screen printing plates of different sizes.

[0037] An overflow pipe 15 is installed on the side wall of the tank 1, and the height of the overflow pipe 15 is lower than that of the perforation 14. The overflow pipe 15 is connected to an external container to release excess electrolyte, preventing the electrolyte from leaking out of the tank 1 and onto the ground through the perforation 14 because the liquid level is higher than that of the perforation 14.

[0038] Reference Figure 3 The limiting rod 3 is fixed with a slider 31, and the two sliders 31 are slidably connected to a connecting plate 32. The sliders 31 and the connecting plate 32 are located outside the groove 1. The sliders 31 are fixed with two dovetail blocks, and the connecting plate 32 has two sliding grooves for the dovetail blocks to slide together. Through the sliding connection, the two limiting rods 3 are always kept parallel, which facilitates the adjustment of the distance and also facilitates the pulling of the two limiting rods 3 through the connecting plate 32.

[0039] Reference Figure 2 A support plate 4 is fixed to the inner bottom wall of the tank 1. Multiple support grooves 41 are formed on the support plate 4, corresponding to the positions between adjacent limiting plates 2. When a large-sized screen printing stencil is placed in the tank 1, the bottom of the stencil rests in the corresponding support groove 41. In this case, there is no need for the limiting rod 3 to hang the stencil. The support grooves 41 prevent the stencil from tilting and avoid contact between adjacent stencils, thus improving the adaptability of this electrolytic cell to large-sized screen printing stencils. A liquid passage hole 42 is formed through the support plate 4, preventing the support plate 4 from obstructing the liquid flow.

[0040] The implementation principle of an electrolytic cell for screen printing stencils according to an embodiment of this application is as follows: With the limiting rod 3 positioned in the extraction mounting slot 21, the screen printing stencil is held in one hand and placed between adjacent limiting plates 2. Then, the limiting rod 3 is pulled to move and insert into the mounting slot 21, passing through the positioning hole of the screen printing stencil. Screen printing stencils are then installed into the tank 1 one by one in this manner. For very large screen printing stencils, it is not necessary to insert the limiting rod 3; the screen printing stencil can be directly placed on the corresponding support slot 41. After installation, the screen printing stencils are highly stable, and adjacent screen printing stencils do not come into contact, allowing the screen portion to fully contact the electrolyte.

[0041] Electrolyte is injected into tank 1 through inlet pipe 11, and the electrolyte is heated by heating tube 13. The electrolyte level is higher than the screen printing part, but lower than the top of the screen printing plate.

[0042] After electrolysis is complete, hold the screen printing stencil with one hand and pull the limiting rod 3 outward from the tank 1. After pulling the limiting rod 3 out of the positioning hole of the screen printing stencil, the screen printing stencil can be removed. Remove the screen printing stencils from the tank 1 one by one in this way. Since the outer frame of the screen printing stencil is relatively heavy, the method of removing and placing them one by one is easier to operate.

[0043] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An electrolytic cell for screen printing, comprising a cell body (1), wherein the cell body (1) is provided with an inlet pipe (11) and an outlet pipe (12), characterized in that: Multiple limiting plates (2) are fixed on both sides of the inner wall of the groove (1). The limiting plates (2) are vertically arranged, and the space between adjacent limiting plates (2) is used for the screen printing plate to enter. The limiting plates (2) have through-holes with mounting grooves (21). Two limiting rods (3) are inserted through the groove (1). The limiting rods (3) pass through the positioning holes of the screen printing plate and into the mounting grooves (21).

2. The electrolytic cell for screen printing stencils according to claim 1, characterized in that: The mounting groove (21) is provided with at least two sets in the vertical direction, and the side wall of the groove (1) is provided with a through hole (14) for the limiting rod (3) to pass through.

3. The electrolytic cell for screen printing stencils according to claim 2, characterized in that: The mounting groove (21) extends horizontally through the limiting plate (2) towards the center of the groove (1), and the through hole (14) is a strip-shaped hole.

4. The electrolytic cell for screen printing stencils according to claim 2, characterized in that: An overflow pipe (15) is installed on the side wall of the tank (1), and the height of the overflow pipe (15) is lower than that of the perforation (14).

5. The electrolytic cell for screen printing stencils according to claim 1, characterized in that: The inner bottom wall of the tank (1) is equipped with an electric heating tube (13).

6. The electrolytic cell for screen printing stencils according to claim 1, characterized in that: The inner bottom wall of the groove (1) is fixed with a support plate (4), and the support plate (4) is provided with a plurality of support grooves (41), which correspond to the positions between adjacent limiting plates (2).

7. The electrolytic cell for screen printing stencils according to claim 6, characterized in that: The support plate (4) has a through-hole (42).

8. The electrolytic cell for screen printing stencils according to claim 3, characterized in that: The limiting rod (3) is fixed with a slider (31), and the two sliders (31) are slidably connected to a connecting plate (32). The sliders (31) and the connecting plate (32) are located outside the groove (1).

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