Developing, etching and film-removing device for circuit board

Abstract

The utility model belongs to the technical field of circuit board processing, and discloses a circuit board developing, etching and film removing device which comprises a film removing box and a driving assembly, the driving assembly is fixedly connected to the side face of the film removing box, and the output end of the driving assembly is connected with a plurality of fixing assemblies. The fixing assembly comprises a rotating disc, a fixing plate, a vertical groove, a sliding rod, a tension spring and a sliding sleeve, the fixing plate is fixedly connected to the bottom of the inner side of the rotating disc, a plurality of fixing wheels are distributed on the side face of the fixing plate at equal intervals, and the vertical groove is formed in the top of the side face of the rotating disc. Through the arrangement of the fixing assembly, stable fixation of the circuit board is achieved, the problem that the circuit board is damaged or the treatment effect is poor due to unstable fixation in the treatment process is effectively avoided, meanwhile, through the arrangement of the driving assembly, the circuit board can dynamically move in the treatment liquid, and the treatment effect is improved. And uniform distribution and reaction of the treatment liquid are promoted, so that the treatment efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of circuit board processing, and in particular relates to a circuit board developing, etching and film removing device. Background Art

[0002] In the electronics manufacturing industry, the production process of circuit boards requires multiple delicate steps. After the circuit board etching process, a layer of photoresist or anti-etching agent will remain on the circuit board to protect the unetched parts. If the residue is not removed, it will affect the subsequent circuit connection and performance, and even cause the circuit board to fail. For this reason, film stripping is required after development and etching. The surface of the circuit board after film stripping is smoother and cleaner, which is convenient for subsequent circuit inspection and maintenance work.

[0003] Conventional circuit board developing, etching, and film removal equipment typically employs a fixed processing method, placing the circuit board in a static processing liquid and achieving film removal through chemical reactions. However, this method suffers from low processing efficiency, high processing liquid consumption, and unstable and easily damaged circuit boards. Furthermore, since the circuit board is processed in a static state, the processing liquid can easily be unevenly distributed on the circuit board surface, affecting the processing effect. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a circuit board developing, etching and film removal device, which aims to solve the problems in the existing technology to a certain extent, such as low processing efficiency, high consumption of processing liquid, unstable fixation and easy damage of circuit boards. In addition, since the circuit boards are processed in a static state, it is easy to cause the processing liquid to be unevenly distributed on the surface of the circuit board, affecting the technical problem of the processing effect.

[0005] The technical solution of the utility model is: a circuit board developing and etching film stripping device, comprising a film stripping box and a driving component, wherein the driving component is fixedly connected to the side of the film stripping box, and the output end of the driving component is connected to a plurality of fixed components;

[0006] The fixing assembly includes a rotating disk, a fixing plate, a vertical slot, a sliding rod, a tension spring and a sliding sleeve. The fixing plate is fixedly connected to the bottom of the inner side of the rotating disk, and a plurality of fixing wheels are evenly distributed on the side of the fixing plate.

[0007] The vertical groove is arranged at the top of the side of the rotating disk, the sliding rod is fixedly connected in the vertical groove, the tension spring and the sliding sleeve are sleeved on the sliding rod, wherein the outer side of the sliding sleeve is connected to a lifting plate, and a plurality of pressure wheels are evenly distributed on the side of the lifting plate, and the pressure wheels cooperate with the fixed wheels to fix the circuit board.

[0008] Furthermore, two ends of the tension spring are fixedly connected to the bottom of the sliding sleeve and the inner bottom wall of the vertical slot respectively.

[0009] Furthermore, the bottom of the sliding rod is provided with an external threaded portion, the external threaded portion is threadedly connected to an adjusting nut, the bottom of the tension spring is fixedly connected to the top of the adjusting nut, the bottom of the sliding sleeve is rotatably connected to a rotating plate, and the top of the tension spring is connected to the rotating plate.

[0010] Furthermore, the drive assembly includes a servo motor, a driven wheel and a conveyor belt. The output end of the servo motor is connected to the driving wheel, the driven wheel is connected to the outside of the rotating disk, the driven wheel is located on the outside of the film removal box, and the conveyor belt is used to transmit the driving wheel and the driven wheel.

[0011] Furthermore, the servo motor is fixedly connected to the outside of the film removal box through a support plate.

[0012] Furthermore, a rotating shaft is fixedly connected to the outer side of the rotating disk, one end of the rotating shaft passes through a bearing embedded in the film removal box and extends to the outside, and the driven wheel is fixedly sleeved on one end of the rotating shaft.

[0013] Furthermore, a drain pipe is provided at the bottom of the side of the film removal box, and a stop valve is installed on the drain pipe.

[0014] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages: through the setting of the fixing component, stable fixation of the circuit board is achieved, effectively avoiding damage to the circuit board or poor treatment effect caused by unstable fixation during the treatment process; at the same time, the setting of the driving component enables the circuit board to move dynamically in the treatment liquid, promoting the uniform distribution and reaction of the treatment liquid, thereby improving the treatment efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, a brief introduction will be given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0016] Figure 1 This is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the fixed component of the utility model;

[0018] Figure 3 This is a front view of the rotating disk structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the lifting plate and pressure wheel structure of the utility model.

[0020] In the attached figure:

[0021] 1. De-filming box; 2. Driving assembly; 201. Support plate; 202. Servo motor; 203. Driving wheel; 204. Driven wheel; 205. Conveyor belt; 3. Fixing assembly; 301. Rotating disk; 302. Fixing plate; 303. Fixing wheel; 304. Vertical slot; 305. Sliding rod; 306. Tension spring; 307. Sliding sleeve; 308. Adjusting nut; 309. Lifting plate; 310. Pressing wheel; 4. Drain pipe; 5. Circuit board. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0023] See also Figures 1 to 4 A circuit board developing, etching and film stripping device includes a film stripping box 1 and a driving component 2. The driving component 2 is fixedly connected to the side of the film stripping box 1, and the output end of the driving component 2 is connected to multiple fixed components 3.

[0024] The film removal box 1 is provided with a film removal treatment liquid, which is a chemical solution used to remove the film or coating on the surface of the circuit board. During the circuit board manufacturing process, in order to protect the unetched parts, a layer of photoresist or anti-etching agent is usually coated on the circuit board. This protective film needs to be removed after the etching is completed in order to carry out subsequent circuit connection and assembly.

[0025] The fixing assembly 3 includes a rotating disk 301, a fixing plate 302, a vertical slot 304, a sliding rod 305, a tension spring 306 and a sliding sleeve 307. The fixing plate 302 is fixedly connected to the bottom of the inner side of the rotating disk 301. A plurality of fixing wheels 303 are evenly distributed on the side of the fixing plate 302. The rotating disk 301 can drive the circuit board 5 fixed thereon to rotate, ensuring that the circuit board 5 can evenly contact the processing liquid during the processing process.

[0026] The vertical slot 304 is set at the top of the side of the rotating disk 301. The slide bar 305 is fixedly connected to the vertical slot 304. The tension spring 306 and the sliding sleeve 307 are mounted on the slide bar 305. The outer side of the sliding sleeve 307 is connected to the lifting plate 309. A plurality of pressure rollers 310 are evenly distributed on the side of the lifting plate 309. The pressure rollers 310 cooperate with the fixed wheel 303 to fix the circuit board 5. The lifting plate 309 is pulled upward, and the bottom of the circuit board 5 is placed in the wheel groove of the fixed wheel 303. The lifting plate 309 is loosened. The tension of the tension spring 306 pulls the lifting plate 309 so that the top of the circuit board is stuck in the wheel groove of the pressure roller 310, ensuring that the circuit board 5 will not fall off due to vibration or shaking during the processing process. The height of the lifting plate 309 and the pressure roller 310 can be adjusted to accommodate circuit boards 5 of different sizes.

[0027] The two ends of the tension spring 306 are respectively fixedly connected to the bottom of the sliding sleeve 307 and the inner bottom wall of the vertical groove 304, so that the tension of the tension spring 306 can act on the lifting plate 309, always maintaining the tension on the circuit board 5 and ensuring the stability of the fixation of the circuit board 5.

[0028] In some embodiments, the bottom of the slide bar 305 is provided with an externally threaded portion, onto which an adjustment nut 308 is threadedly connected. The bottom of the tension spring 306 is fixedly connected to the top of the adjustment nut 308. The bottom of the sliding sleeve 307 is rotatably connected to a rotating plate, and the top of the tension spring 306 is connected to the rotating plate. By rotating the adjustment nut 308, the position of the adjustment nut 308 on the slide bar 305 can be adjusted, thereby adjusting the preload force of the tension spring 306 as needed, and adjusting the force applied to the lifting plate 309 and the pressure wheel 310. When the adjustment nut 308 is rotated, the tension spring 306 can be used to cause the rotating plate to rotate on the sliding sleeve 307, preventing mutual interference, while allowing the sliding sleeve 307 to slide freely on the slide bar 305.

[0029] The driving assembly 2 includes a servo motor 202, a driven wheel 204 and a conveyor belt 205. The servo motor 202 is fixedly connected to the outside of the film removal box 1 through the support plate 201. The output end of the servo motor 202 is connected to the driving wheel 203. The driven wheel 204 is connected to the outside of the rotating disk 301. The driven wheel 204 is located on the outside of the film removal box 1. The conveyor belt 205 is used to transmit and connect the driving wheel 203 and the driven wheel 204. The operation of the servo motor 202 drives the driving wheel 203 to rotate, and drives the driven wheel 204 to rotate through the conveyor belt 205, thereby causing the rotating disk 301 to rotate in the film removal box 1, so that the circuit board 5 can be evenly contacted with the treatment liquid during the film removal process.

[0030] In some embodiments, the driving assembly 2 further includes a tension adjustment mechanism, through which the conveyor belt 205 always maintains appropriate tension.

[0031] The outer side of the rotating disk 301 is fixedly connected to a rotating shaft, one end of which passes through a bearing embedded in the film removal box 1 and extends to the outside. The driven wheel 204 is fixedly sleeved on one end of the rotating shaft and is sealed by the bearing to prevent leakage of the treatment liquid in the film removal box 1. At the same time, the stability and reliability of the rotating disk 301 during the rotation process are ensured.

[0032] A drain pipe 4 is provided at the bottom of the side of the film removal box 1. A stop valve is installed on the drain pipe 4, which can discharge the treatment liquid in the film removal box 1, making it easy to clean and replace the treatment liquid.

[0033] Working principle: Prepare the circuit board 5 to be processed, and adjust the preload force of the tension spring 306 by rotating the adjusting nut 308 to ensure that the circuit board 5 can be fixed between the fixing wheel 303 and the pressing wheel 310;

[0034] Pull the lifting plate 309 upward, then place the bottom of the circuit board in the wheel groove of the fixed wheel 303, loosen the lifting plate 309, and the tension of the tension spring 306 pulls the lifting plate 309 so that the top of the circuit board is stuck in the wheel groove of the pressure wheel 310. At this time, the tension of the tension spring 306 presses the lifting plate 309 and the pressure wheel 310 on the circuit board, ensuring that the circuit board 5 will not fall off or shake during the handling process;

[0035] The servo motor 202 is started, and the output end of the servo motor 202 drives the driving wheel 203 to rotate. Through the transmission of the conveyor belt 205, the driven wheel 204 also rotates, thereby driving the rotating disk 301 to rotate in the film removal box 1;

[0036] As the rotating disk 301 rotates, the circuit board 5 can evenly contact the processing liquid in the film stripping box 1. Under the action of the processing liquid, the photoresist or anti-etching agent begins to undergo a chemical reaction, gradually softens, expands and finally separates from the surface of the circuit board 5.

[0037] When the film stripping is complete, the servo motor 202 is stopped, causing the rotating disk 301 to stop rotating. The lifting plate 309 is pulled upward to separate the pressing wheel 310 from the circuit board. The circuit board is then removed from the wheel groove of the fixed wheel 303. The circuit board 5 is then cleaned using a cleaning device to remove any residual film stripping solution and other impurities. After cleaning, the circuit board 5 is dried for subsequent processing steps.

[0038] It should be noted that the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements that are inherent to such process, method, article or apparatus.

[0039] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A circuit board developing, etching and film removal device, characterized in that: include: Defilming box (1); A drive assembly (2) is fixedly connected to the side of the film removal box (1), and its output end is connected to a plurality of fixed assemblies (3); The fixing component (3) includes: Rotating disk (301); A fixed plate (302) is fixedly connected to the bottom of the inner side of the rotating disk (301), and a plurality of fixed wheels (303) are evenly distributed on the side thereof; A vertical groove (304) is provided on the top of the side of the rotating disk (301); A slide bar (305) is fixedly connected in the vertical groove (304); A tension spring (306) and a sliding sleeve (307) are sleeved on the sliding rod (305), wherein the outer side of the sliding sleeve (307) is connected to a lifting plate (309), and a plurality of pressing wheels (310) are evenly distributed on the side of the lifting plate (309), and the pressing wheels (310) cooperate with the fixing wheels (303) to fix the circuit board (5).

2. The circuit board developing, etching and film removing device according to claim 1, characterized in that: The two ends of the tension spring (306) are fixedly connected to the bottom of the sliding sleeve (307) and the inner bottom wall of the vertical groove (304) respectively.

3. The circuit board developing, etching and film removing device according to claim 1, characterized in that: The bottom of the slide rod (305) is provided with an external threaded portion, and an adjusting nut (308) is threadedly connected to the external threaded portion. The bottom of the tension spring (306) is fixedly connected to the top of the adjusting nut (308); the bottom of the sliding sleeve (307) is rotatably connected to a rotating plate, and the top of the tension spring (306) is connected to the rotating plate.

4. The circuit board developing, etching and film removing device according to claim 1, wherein: The drive assembly (2) includes: A servo motor (202), the output end of which is connected to a driving wheel (203); A driven wheel (204) is connected to the outer side of the rotating disk (301) and is located outside the film removal box (1); The conveyor belt (205) is used to connect the driving wheel (203) and the driven wheel (204) in a transmission manner.

5. The circuit board developing, etching and film removing device according to claim 4, characterized in that: The servo motor (202) is fixedly connected to the outside of the film removal box (1) via the support plate (201).

6. The circuit board developing, etching and film removing device according to claim 4, characterized in that: A rotating shaft is fixedly connected to the outer side of the rotating disk (301), one end of the rotating shaft passes through a bearing embedded in the film removal box (1) and extends to the outside, and a driven wheel (204) is fixedly sleeved on one end of the rotating shaft.

7. The circuit board developing, etching and film removing device according to claim 1, wherein: A drain pipe (4) is provided at the bottom of the side of the film removal box (1), and a stop valve is installed on the drain pipe (4).

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