Thick dry film stripping groove for tantalum capacitor circuit board production

Abstract

The utility model discloses a thick dry film stripping groove for tantalum capacitor circuit board production, which comprises a film stripping groove body for stripping a thick dry film on the surface of a tantalum capacitor circuit board, an output end of a DSP (digital signal processor) controller is connected with an electric heating tube through a first lead, and a heating end of the electric heating tube extends into an inner cavity of the film stripping groove body. The signal input end of the DSP controller is connected with a temperature sensor through a second wire, the measuring end of the temperature sensor extends to the inner cavity of the film stripping groove body, and the tantalum capacitor circuit board is directly soaked in the film stripping groove body through the arrangement of the film stripping groove body and the DSP controller, so that the size of equipment for performing film stripping treatment on the surface of the tantalum capacitor circuit board is reduced; and through the arrangement of the DSP controller, the temperature rising speed of the liquid medicine in the film stripping groove body can be accurately controlled, and the situation that the film stripping speed of the surface of the tantalum capacitor circuit board is affected by the too high temperature or the too low temperature is prevented.

Description

Technical Field

[0001] The utility model belongs to the technical field of circuit board manufacturing equipment, and specifically relates to a thick dry film stripping tank for producing tantalum capacitor circuit boards. Background Art

[0002] Tantalum capacitors are a type of electrolytic capacitor that uses metal tantalum as a dielectric. Tantalum capacitors have high energy density, high reliability, stable electrical properties, and a wide operating temperature range, and have been widely used in the industrial and military markets. Tantalum capacitors have high reliability, low leakage current, stable performance, and extremely high electric field strength, so they are particularly suitable for occasions with reliability requirements. They have irreplaceable advantages over aluminum capacitors, film capacitors, and ceramic capacitors. Although their market share is smaller than the other three types of capacitors due to their higher cost, tantalum capacitors have a stable market share and performance advantages in the field of high-end capacitors.

[0003] After the pattern transfer is completed on the surface of the existing tantalum capacitor circuit board, the required boss pattern is obtained through electroplating, and finally the thick dry film with protective effect needs to be removed. When the dry film thickness on the surface of the tantalum capacitor circuit board is too thick, the traditional NaOH horizontal line film removal can no longer meet the requirements. If the film needs to be removed according to the traditional process, while maintaining the original transmission speed, the length of the film removal tank in the horizontal line needs to be extended from 6 meters to 40 meters, which completely exceeds the design capacity of the factory. Moreover, long-term NaOH flushing will cause deep oxidation corrosion on the copper surface, which is difficult to remove, and then the surface state after surface treatment is abnormal, affecting the appearance of the product. Utility Model Content

[0004] In order to solve the above technical problems, the purpose of the utility model is to provide a thick dry film stripping tank for the production of tantalum capacitor circuit boards, so as to solve the technical defect that when the dry film thickness on the surface of the tantalum capacitor circuit board is too thick, the film stripping is carried out according to the traditional process, and the film stripping tank body in the horizontal line needs to be lengthened while maintaining the original transmission speed.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A thick dry film stripping tank for producing tantalum capacitor circuit boards, comprising a stripping tank body for stripping thick dry film on the surface of the tantalum capacitor circuit board, a DSP controller fixedly installed on the surface of the stripping tank body, an output end of the DSP controller connected to an electric heating tube via a first wire, the heating end of the electric heating tube extends to the inner cavity of the stripping tank body, a signal input end of the DSP controller connected to a temperature sensor via a second wire, the measuring end of the temperature sensor extends to the inner cavity of the stripping tank body, a support column fixedly installed at the bottom of the stripping tank body, a valve connected to the bottom of the stripping tank body, a first water outlet pipe connected to the water outlet side of the valve, and a filter assembly is arranged below the stripping tank body and installed at a position corresponding to the first water outlet pipe.

[0007] As a preferred embodiment of the present invention, the filter assembly includes a filter box installed below the film stripping tank, support legs are fixedly installed at the bottom of the filter box, a second grille is placed in the inner cavity of the filter box, a filter bin is placed on the top of the second grille, and handles are fixedly installed on both sides of the filter bin.

[0008] As a further solution of the utility model, a connecting plate is fixedly installed on one side of the film stripping tank body, and an exhaust fan is fixedly installed on the top of the connecting plate.

[0009] As a further solution of the utility model, a connecting block is fixedly installed on one side of the film stripping trough body, a connecting disk is rotatably connected to the top surface of the connecting block, a supporting arm is fixedly installed on the top of the connecting disk, and an electric hoist is fixedly installed on the surface of the supporting arm.

[0010] As a further solution of the utility model, a ladder is fixedly installed on one side surface of the film stripping trough, and a faucet is fixedly installed on the surface of the film stripping trough and on one side of the ladder. The water outlet end of the faucet penetrates the film stripping trough and extends to the inner cavity of the film stripping trough.

[0011] As a further solution of the utility model, a first grid is provided at the bottom of the inner cavity of the film stripping tank.

[0012] As a preferred solution of the utility model, a filter plate is fixedly installed in the inner cavity of the film stripping tank and between the two groups of electric heating tubes.

[0013] Compared with the prior art, the thick dry film stripping tank for tantalum capacitor circuit board production provided by the utility model has the following beneficial effects:

[0014] 1. The thick dry film stripping tank for the production of tantalum capacitor circuit boards can directly immerse the tantalum capacitor circuit boards in the stripping tank body through the setting of the stripping tank body and the DSP controller, thereby reducing the volume of the equipment for stripping the surface of the tantalum capacitor circuit boards, thereby avoiding the length of the horizontal line being too long and exceeding the design capacity of the plant, and through the setting of the DSP controller, the temperature rise rate of the liquid in the stripping tank body can be accurately controlled to prevent the temperature from being too high or too low to affect the stripping speed of the surface of the tantalum capacitor circuit boards;

[0015] 2. The thick dry film stripping tank used in the production of tantalum capacitor circuit boards can filter out impurities contained in the discharged medicine solution through the setting of the filtering component to prevent the impurities from clogging the sewage pipe. When there are too many impurities stored in the inner cavity of the filter bin, hold the handles on both sides of the filter bin and lift it upward to take out the filter bin and pour out the impurities in the filter bin. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the drawings required for use in the embodiment will be briefly introduced below. Obviously, the drawings described below are only examples of the embodiment of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 The structure of the embodiment of the utility model is shown in FIG. Figure 1 ;

[0018] Figure 2 The structure of the embodiment of the utility model is shown in FIG. Figure 2 ;

[0019] Figure 3 It is a schematic structural diagram of a cross-section of a film stripping tank body according to an embodiment of the utility model;

[0020] Figure 4 It is a schematic cross-sectional structural diagram of the filter bin according to an embodiment of the utility model.

[0021] Reference numerals:

[0022] 100, support column; 101, film removal tank; 102, faucet; 103, ladder; 104, valve; 105, first water outlet pipe; 106, first grille;

[0023] 200, connecting plate; 201, exhaust fan;

[0024] 300, electric hoist; 301, support arm; 302, connecting plate; 303, connecting block;

[0025] 400, filter chamber; 401, filter box; 402, support leg; 403, handle; 404, second grille; 405, second water outlet pipe;

[0026] 500, electric heating tube; 501, first wire; 502, second wire; 503, DSP controller; 504, temperature sensor; 505, filter plate. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the embodiment of the utility model more clear, the embodiment of the utility model is further described in detail below in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0028] In the description of the embodiments of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the embodiments of the present invention.

[0029] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, an integral connection, or a detachable connection; it can be the internal connection of two components; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0030] See attached Figure 1-4 As shown, an embodiment of the utility model is a thick dry film stripping tank for tantalum capacitor circuit board production, including a stripping tank body 101 for stripping the thick dry film on the surface of the tantalum capacitor circuit board, a DSP controller 503 is fixedly installed on the surface of the stripping tank body 101, an output end of the DSP controller 503 is connected to an electric heating tube 500 through a first wire 501, the heating end of the electric heating tube 500 extends to the inner cavity of the stripping tank body 101, a signal input end of the DSP controller 503 is connected to a temperature sensor 504 through a second wire 502, the temperature sensor 504 can be a pt100 temperature sensor 504, and the measuring end of the temperature sensor 504 extends to the inner cavity of the stripping tank body 101.

[0031] A support column 100 is fixedly installed at the bottom of the film stripping tank 101, and a valve 104 is connected to the bottom of the film stripping tank 101. The water outlet side of the valve 104 is connected to a first water outlet pipe 105. A filter component is arranged below the film stripping tank 101 and installed at a position corresponding to the first water outlet pipe 105. Through the setting of the film stripping tank 101 and the DSP controller 503, the tantalum capacitor circuit board is directly immersed in the film stripping tank 101, thereby reducing the volume of the equipment for stripping the film on the surface of the tantalum capacitor circuit board, thereby avoiding the length of the horizontal line being too long and exceeding the design capacity of the plant, and through the setting of the DSP controller 503, the heating rate of the medicine in the film stripping tank 101 can be accurately controlled to prevent the temperature from being too high or too low to affect the film stripping speed on the surface of the tantalum capacitor circuit board.

[0032] The filter assembly includes a filter box 401 installed below the film stripping tank 101, a support leg 402 is fixedly installed at the bottom of the filter box 401, a second water outlet pipe 405 is connected to the bottom of the filter box 401, a second grille 404 is placed in the inner cavity of the filter box 401, a filter bin 400 is placed on the top of the second grille 404, a filter hole is opened at the bottom of the filter bin 400, and handles 403 are fixedly installed on both sides of the filter bin 400. Through the setting of the filter assembly, impurities contained in the discharged medicine are filtered to prevent impurities from clogging the sewage pipe. When the inner cavity of the filter bin 400 stores too many impurities, the handles 403 on both sides of the filter bin 400 are held by hand, and lifted upward to take out the filter bin 400, and the impurities in the filter bin 400 can be poured out.

[0033] A connecting plate 200 is fixedly installed on one side of the film stripping tank 101 , and an exhaust fan 201 is fixedly installed on the top of the connecting plate 200 to extract smoke generated by the overly high temperature of the liquid medicine, so that the staff can observe the situation in the film stripping tank 101 .

[0034] A connection block 303 is fixedly installed on one side of the film stripping tank 101, and a connection plate 302 is rotatably connected to the top surface of the connection block 303. A support arm 301 is fixedly installed on the top of the connection plate 302, and an electric hoist 300 is fixedly installed on the surface of the support arm 301. The setting of the electric hoist 300 facilitates the lifting of the tantalum capacitor circuit board into the inner cavity of the film stripping tank 101. A ladder 103 is fixedly installed on the surface of the film stripping tank 101, and a faucet 102 is fixedly installed on the surface of the film stripping tank 101 and on one side of the ladder 103. The water outlet of the faucet 102 penetrates the film stripping tank 101 and extends to the inner cavity of the film stripping tank 101. The setting of the faucet 102 facilitates the staff to add tap water to the film stripping tank 101 at any time. A first grid 106 is provided at the bottom of the inner cavity of the film stripping tank 101. The tantalum capacitor circuit board is suspended by the first grid 106 to prevent the tantalum capacitor circuit board from blocking the first water outlet pipe 105, resulting in the inability to discharge the liquid medicine.

[0035] A filter plate 505 is fixedly installed in the inner cavity of the film stripping tank 101 and between the two groups of electric heating tubes 500. The filter plate 505 is arranged to prevent impurities in the medicine from adhering to the surface of the electric heating tubes 500 and affecting the electric heating tubes 500.

[0036] When in use, first move the tantalum capacitor circuit board that needs to be stripped to one side of the stripping tank 101, then set the required temperature on the DSP controller 503, and then the DSP controller 503 controls the electric heating tube 500 to heat the medicine in the stripping tank 101. When the temperature of the medicine reaches the preset temperature, the detection end of the temperature sensor 504 on the surface of the inner cavity of the stripping tank 101 sends a signal to the DSP controller 503 through the second wire 502, thereby stopping heating. Then, the tantalum capacitor circuit board is lifted up using the electric hoist 300, and the connecting plate 2 is rotated. 00Hang the tantalum capacitor circuit board above the film stripping tank 101, then slowly lower the tantalum capacitor circuit board and slowly sink it into the inner cavity of the film stripping tank 101, so that the film stripping solution submerges the tantalum capacitor circuit board, thereby performing film stripping treatment on the surface of the tantalum capacitor circuit board, and observe the film stripping situation on the surface of the tantalum capacitor circuit board in the film stripping tank 101. When the treatment is completed, lift the tantalum capacitor circuit board out. When the solution needs to be replaced after long-term use, open the valve 104, so that the solution flows from the first outlet pipe 105 to the filter assembly, and is filtered through the filter assembly and then discharged to the sewage pipe.

[0037] The above shows and describes the basic principles of the present invention. The above are only preferred embodiments of the present invention and are not intended to limit the present invention. The above embodiments and descriptions in the specification are only intended to illustrate the principles of the present invention. Without departing from the scope of the present invention, any modifications, equivalent substitutions and improvements made within the spirit and scope of the present invention should be included in the protection scope of the present invention.

Claims

1. A thick dry film stripping tank for tantalum capacitor circuit board production, characterized in that: The invention comprises a film stripping tank (101) for stripping a thick dry film on the surface of a tantalum capacitor circuit board, a DSP controller (503) being fixedly mounted on the surface of the film stripping tank (101), an output end of the DSP controller (503) being connected to an electric heating tube (500) via a first wire (501), a heating end of the electric heating tube (500) extending to the inner cavity of the film stripping tank (101), and a signal input end of the DSP controller (503) being connected to an electric heating tube (500) via a second wire (502). A temperature sensor (504) is connected, the measuring end of the temperature sensor (504) extends to the inner cavity of the film stripping tank (101), a support column (100) is fixedly installed at the bottom of the film stripping tank (101), the bottom of the film stripping tank (101) is connected to a valve (104), the water outlet side of the valve (104) is connected to a first water outlet pipe (105), and a filter assembly is arranged below the film stripping tank (101) and installed at a position corresponding to the first water outlet pipe (105).

2. The thick dry film stripping tank for producing tantalum capacitor circuit boards according to claim 1, characterized in that: The filter assembly comprises a filter box (401) installed below the film stripping tank (101), a support leg (402) is fixedly installed at the bottom of the filter box (401), a second water outlet pipe (405) is connected to the bottom of the filter box (401), a second grille (404) is placed in the inner cavity of the filter box (401), a filter bin (400) is placed on the top of the second grille (404), and handles (403) are fixedly installed on both sides of the filter bin (400).

3. A thick dry film stripping tank for producing tantalum capacitor circuit boards according to claim 2, characterized in that: A connecting plate (200) is fixedly mounted on one side of the film stripping tank (101), and an exhaust fan (201) is fixedly mounted on the top of the connecting plate (200).

4. A thick dry film stripping tank for producing tantalum capacitor circuit boards according to claim 3, characterized in that: A connection block (303) is fixedly mounted on one side of the film stripping tank (101); a connection disk (302) is rotatably connected to the top surface of the connection block (303); a support arm (301) is fixedly mounted on the top of the connection disk (302); and an electric hoist (300) is fixedly mounted on the surface of the support arm (301).

5. A thick dry film stripping tank for producing tantalum capacitor circuit boards according to claim 4, characterized in that: A ladder (103) is fixedly mounted on one side surface of the film stripping tank (101), and a faucet (102) is fixedly mounted on the surface of the film stripping tank (101) and on one side of the ladder (103), wherein the water outlet end of the faucet (102) penetrates the film stripping tank (101) and extends to the inner cavity of the film stripping tank (101).

6. A thick dry film stripping tank for producing tantalum capacitor circuit boards according to claim 5, characterized in that: A first grid (106) is provided at the bottom of the inner cavity of the film stripping tank (101).

7. A thick dry film stripping tank for producing tantalum capacitor circuit boards according to any one of claims 1 to 6, characterized in that: A filter plate (505) is fixedly installed in the inner cavity of the film stripping tank (101) and between the two groups of electric heating tubes (500).

Images