An etching apparatus

Abstract

The utility model discloses an etching device has: liquid medicine tank, the liquid storage tank is communicated with liquid medicine tank through the pipeline, and is equipped with the filter machine on the pipeline of liquid storage tank and liquid medicine tank, etching tank, liquid medicine tank is communicated with etching tank through the liquid pump, etching tank is communicated with the liquid storage tank through the back liquid pipe, the liquid tank is communicated with liquid medicine tank through the pipeline. Solve the problem of spraying maintenance, through the reestablishment etching system, etching liquid medicine is discharged to the liquid storage tank alone, then through the automatic filter machine filters glass slag and automatically discharges the slag simultaneously, and the clear liquid is filtered back to the liquid medicine tank, to maintain the liquid medicine tank without glass slag, can maintain spraying to a great extent and will not block the nozzle, avoids the personnel frequent maintenance equipment problem.

Description

Technical Field

[0001] This utility model belongs to the technical field of liquid crystal panel processing equipment, and in particular relates to an etching device. Background Technology

[0002] In the process of realizing this utility model, the inventors discovered that the prior art has at least the following problems:

[0003] As people's demand for mobile phones increases, the requirements for panels also gradually increase, and the thinning of LCD panels has become the norm. In this process, LCD panel thinning equipment has constrained many products. Among them, spray thinning equipment is currently the most advanced etching method used in the industry and is the most accepted by various manufacturers. However, spray equipment is difficult to maintain, and in order to avoid abnormal product thickness, it is necessary to perform etching multiple times, resulting in low etching efficiency of the spray line.

[0004] Currently, thinning equipment still has the following disadvantages: Disadvantage 1: Difficult to maintain; Disadvantage 2: Etching needs to be done in multiple stages; Disadvantage 3: Manual addition and replenishment of liquid; Disadvantage 4: Low efficiency.

[0005] CN106019692A - A display substrate, display device and manufacturing method are disclosed. The manufacturing method of the display substrate includes: forming a polarizing layer. The polarizing layer is made of a colloid doped with polarizing material, but this method cannot solve the above-mentioned technical problems. Utility Model Content

[0006] The technical problem to be solved by this utility model is to provide an etching device that solves the problem of spray maintenance. By re-establishing the etching system, the etching solution is discharged separately into the storage tank, and then the glass slag is filtered by an automatic filter while the waste residue is automatically discharged. The clear liquid is filtered back into the solution tank to keep the solution tank free of glass slag. This can greatly prevent the spray nozzles from clogging and avoid the problem of frequent equipment maintenance by personnel.

[0007] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: an etching device, comprising:

[0008] Medicine tank;

[0009] The liquid storage tank is connected to the medicine tank via a pipeline, and a filter is installed on the pipeline between the liquid storage tank and the medicine tank.

[0010] An etching chamber, wherein the liquid tank is connected to the etching chamber via a liquid extraction pipe; the etching chamber is connected to a storage tank via a liquid return pipe;

[0011] The raw material tank is connected to the medicine tank via pipeline.

[0012] The medicine tank is equipped with high liquid level alarms and low liquid level alarms at different height positions.

[0013] The liquid tank is also equipped with a concentration monitor.

[0014] A concentration monitor is installed on each side of the medicine tank.

[0015] The etching chamber is also equipped with a laser thickness gauge capable of detecting the thickness of the product.

[0016] A washing tank is also provided on one side of the etching box.

[0017] One of the above technical solutions has the following advantages or beneficial effects: it solves the problem of spray maintenance. By re-establishing the etching system, the etching solution is discharged separately into the storage tank, and then the glass slag is filtered by an automatic filter while the waste residue is automatically discharged. The clear liquid is filtered back into the solution tank to keep the solution tank free of glass slag. This can greatly prevent the spray nozzles from clogging and avoid the problem of frequent equipment maintenance by personnel. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the etching device provided in the embodiments of this utility model;

[0019] The markings in the above diagrams are as follows: 1. Liquid tank, 11. High liquid level alarm, 12. Low liquid level alarm, 2. Storage tank, 3. Etching tank, 31. Laser thickness gauge, 4. Washing tank, 5. Filter, 6. Raw material tank, 7. Suction pipe, 8. Return pipe. Detailed Implementation

[0020] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] See Figure 1An etching apparatus comprises: a chemical solution tank 1; a storage tank 2 connected to the chemical solution tank 1 via a pipeline, with a filter 5 installed on the pipeline between the storage tank 2 and the chemical solution tank 1; an etching chamber 3, connected to the chemical solution tank 1 via a suction pipe 7; the etching chamber 3 connected to the storage tank 2 via a return pipe 8; and a raw material tank 6 connected to the chemical solution tank 1 via a pipeline. This apparatus solves the problem of spray maintenance by re-establishing the etching system. The etching solution is separately discharged into the storage tank 2, and then filtered by the automatic filter 5 to remove glass slag while automatically discharging waste residue. The purified solution is then filtered back into the chemical solution tank 1, maintaining a glass slag-free environment in the chemical solution tank 1. This significantly reduces the risk of nozzle clogging during spraying and avoids frequent equipment maintenance by personnel.

[0022] High-level alarms 11 and low-level alarms 12 are installed at different heights in the liquid tank 1. This enables automatic recycling of the liquid. By calculating the theoretical logic of the volume of liquid extracted / filtered, and by setting up high and low level warning devices in the liquid tank 1, fully automatic liquid recycling is achieved, meeting the purpose of continuous production.

[0023] The medicine tank 1 is also equipped with a concentration monitor. There is a concentration monitor on each side of the medicine tank 1. This realizes an active liquid replenishment mechanism. By adding dual HF concentration monitors, a more accurate medicine concentration is obtained by averaging, and the concentration is maintained by automatic liquid replenishment controlled by a program.

[0024] The etching chamber 3 is also equipped with a laser thickness gauge 31 that can detect the thickness of the product. This enables fully automated operation. The new laser thickness gauge 31 monitors the product thickness in real time, and the glass is discharged when the required thickness is reached (the original design did not have a fully automatic filtration system, so the product thickness fluctuated, and the concentration of the chemical solution also fluctuated, making it impossible to etch to the required thickness in one go).

[0025] A washing tank 4 is also provided on one side of the etching box 3.

[0026] It enables fully automated production, improving production efficiency; greatly reduces the frequency of equipment maintenance; and enables automatic liquid replenishment and return, reducing the probability of operator errors.

[0027] By adopting the above structure, the spray maintenance problem is solved. By re-establishing the etching system, the etching solution is discharged separately into the storage tank, and then the glass slag is filtered out by an automatic filter while the waste residue is automatically discharged. The clear liquid is filtered back into the solution tank to keep the solution tank free of glass slag. This can greatly prevent the spray nozzles from clogging and avoid the problem of frequent equipment maintenance by personnel.

[0028] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An etching apparatus, characterized in that, have: Medicine tank; The liquid storage tank is connected to the medicine tank via a pipeline, and a filter is installed on the pipeline between the liquid storage tank and the medicine tank. An etching chamber, wherein the liquid tank is connected to the etching chamber via a liquid extraction pipe; the etching chamber is connected to a storage tank via a liquid return pipe; The raw material tank is connected to the medicine tank via pipeline.

2. The etching apparatus as described in claim 1, characterized in that, The medicine tank is equipped with high liquid level alarms and low liquid level alarms at different height positions.

3. The etching apparatus as described in claim 2, characterized in that, The liquid tank is also equipped with a concentration monitor.

4. The etching apparatus as described in claim 3, characterized in that, A concentration monitor is installed on each side of the medicine tank.

5. The etching apparatus as described in claim 4, characterized in that, The etching chamber is also equipped with a laser thickness gauge capable of detecting the thickness of the product.

6. The etching apparatus as described in claim 5, characterized in that, A washing tank is also provided on one side of the etching box.

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