An automatic circuit board developer replenishment device

Abstract

This utility model relates to the field of circuit board developing technology, specifically an automatic replenishment device for circuit board developing solution. It includes a developing solution tank, a storage tank, and a replenishment mechanism. The storage tank is fixedly connected to the surface of the developing solution tank, and the replenishment mechanism is disposed on the surface of the storage tank. The replenishment mechanism includes a replenishment component, an adjustment component, and an auxiliary component. The replenishment component includes a replenishment pipe that is connected through the surface of the storage tank, and a replenishment hole is formed on the surface of the replenishment pipe. A float plate is slidably connected to the inner wall of the developing solution tank, and a vertical rod is fixedly connected to the surface of the float plate. A sealing outer ring is fixedly connected to the surface of the vertical rod. The adjustment component includes a fixed platform. This utility model, by setting a replenishment mechanism, can automatically replenish the developing solution as it is consumed. It also allows setting a preset water level, ensuring that replenishment only occurs when the developing solution level falls below the preset level, and stops when the preset water level is reached, effectively improving the convenience of the equipment.

Description

Technical Field

[0001] This utility model relates to the field of circuit board developing technology, and in particular to an automatic circuit board developing solution replenishment device. Background Technology

[0002] Printed circuit board manufacturing typically involves a process of substrate dry film lamination, exposure, development, etching, and film removal. The development step requires high-quality pattern transfer and uniform and stable development capability; otherwise, product quality will be affected. The amount of developer added during development has a significant impact on the development capability. Accurate addition of developer can ensure stable development capability while minimizing the negative environmental impact of chemicals.

[0003] Existing technologies, such as Chinese Patent Publication No. CN217135792U, disclose a dry film developing device for high-density printed circuit boards. The device includes a developing tank comprising an immersion tank and a spray tank, both open at their tops, arranged side-by-side. A spray system is installed within the spray tank. The device also includes a chemical circulation system comprising a storage tank, a first connecting channel connecting the spray tank and the immersion tank for conveying the developer from the spray tank to the immersion tank, a second connecting channel connecting the immersion tank and the storage tank for conveying the developer from the immersion tank to the storage tank, and a third connecting channel connecting the storage tank and the spray system for conveying the developer from the storage tank to the spray system. A filter for filtering the developer is installed on the second connecting channel. This invention can effectively improve the developing efficiency of high-density printed circuit boards. However, the developer in this invention still needs to be replenished after being used for a period of time. This makes it inconvenient to choose the timing of replenishment or to accurately add the amount of developer automatically, which may affect the development quality.

[0004] To address the issue of inconvenient automatic replenishment of developer during the development and immersion process of circuit boards, existing technologies either drain all developer from the tank at once or continuously drain and replenish at certain intervals. Draining all developer requires stopping the operation, and fine adjustments to development parameters are needed when resuming operation, which is unsuitable for large-scale production. Continuously replenishing developer at certain intervals is neither convenient for timely replenishment nor for selecting the appropriate replenishment time. Therefore, improvements are needed. Utility Model Content

[0005] The purpose of this invention is to solve the problem in the prior art that it is inconvenient to automatically replenish the developing solution in a timely and appropriate manner during the development and immersion process of circuit boards, and to propose an automatic development solution replenishment device for circuit boards.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an automatic replenishment device for circuit board developer, comprising a developer tank, a storage tank, and a replenishment mechanism, wherein the storage tank is fixedly connected to the surface of the developer tank, and the replenishment mechanism is disposed on the surface of the storage tank;

[0007] The replenishment mechanism includes a replenishment component, an adjustment component, and an auxiliary component. The replenishment component includes a replenishment tube, which is connected to the surface of the storage tank. The surface of the replenishment tube has a replenishment hole.

[0008] A float plate is slidably connected to the inner wall of the developing solution tank, a vertical rod is fixedly connected to the surface of the float plate, and a sealing outer ring is fixedly connected to the surface of the vertical rod.

[0009] The adjustment assembly includes a fixed platform, which is fixedly connected to the surface of the developing solution tank. A screw is rotatably connected to the inner wall of the fixed platform, and a sleeve is threadedly connected to the surface of the screw. A sealing inner ring is fixedly connected to the inner wall of the sleeve.

[0010] Furthermore, the number of replenishment holes is multiple sets, and the multiple sets of replenishment holes are evenly arranged on the surface of the replenishment tube away from the liquid storage tank.

[0011] Furthermore, the vertical rod is disposed inside the replenishment tube, and the sealing outer ring is slidably connected to the inner wall of the replenishment tube.

[0012] Furthermore, the sleeve is fitted onto the surface of the replenishment tube, and the inner sealing ring is slidably connected to the surface of the replenishment tube.

[0013] Furthermore, the surface of the fixed platform is provided with a guide groove, the screw is disposed inside the guide groove, and the sleeve is slidably connected to the surface of the guide groove.

[0014] Furthermore, the auxiliary component includes a guide rod, which is fixedly connected to the surface of the developer tank, and the float is slidably connected to the surface of the guide rod, with a clearance groove formed on the surface of the float.

[0015] Furthermore, a pointer is fixedly connected to the surface of the sleeve, and a scale line is provided on the surface of the fixed platform. The number of pointers and scale lines are both two sets and they are arranged symmetrically.

[0016] Furthermore, a turntable is fixedly connected to the surface of the screw, and the surface of the turntable is provided with anti-slip textures, which are multiple sets and evenly distributed around the circumference.

[0017] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0018] 1. In this utility model, by setting a replenishment mechanism, a sufficient amount of developer is pre-stored in the storage tank. When the water level of the developer in the developer tank decreases, the float and guide rod move downwards, driving the vertical rod downwards, so that the sealing outer ring no longer blocks the replenishment hole. The developer flows from the storage tank into the developer tank through the replenishment hole on the replenishment pipe, realizing automatic replenishment of the developer. As the developer is gradually replenished, the water level gradually rises, driving the float and guide rod upwards, so that the vertical rod returns to its original position. The sealing outer ring is used to re-seal the replenishment hole to avoid over-replenishment of the developer. If it is necessary to replenish only when the developer is below a certain water level, and to stop replenishing when that water level is reached, simply rotate the turntable to rotate the screw, and observe the pointer and scale line to move the sleeve downwards to the appropriate position, and use the sealing inner ring to seal an appropriate number of replenishment holes.

[0019] 2. In this utility model, by setting a replenishment mechanism, the developer can be automatically replenished in appropriate amounts as it is consumed. At the same time, a preset water level can be set so that replenishment will only occur when the developer falls below the preset water level, and replenishment will stop once the preset water level is reached. This effectively improves the convenience of the equipment. Attached Figure Description

[0020] Figure 1 This utility model provides a three-dimensional structural schematic diagram of an automatic circuit board developer replenishment device;

[0021] Figure 2 This utility model provides a side view of the replenishment mechanism in an automatic circuit board developer replenishment device.

[0022] Figure 3 This utility model proposes an automatic replenishment device for circuit board developer. Figure 2 A schematic diagram of the structure at point A;

[0023] Figure 4 This utility model provides a cross-sectional view of the replenishment mechanism in an automatic circuit board developer replenishment device.

[0024] Figure 5 This utility model proposes an automatic replenishment device for circuit board developer. Figure 4 A schematic diagram of the structure at point B.

[0025] Legend:

[0026] 1. Developer tank; 2. Storage tank; 3. Replenishment mechanism; 31. Replenishment component; 311. Replenishment pipe; 312. Replenishment hole; 313. Float; 314. Vertical rod; 315. Sealing outer ring; 32. Adjustment component; 321. Fixing platform; 322. Screw; 323. Sleeve; 324. Sealing inner ring; 325. Guide groove; 33. Auxiliary component; 331. Guide rod; 332. Clearance groove; 333. Pointer; 334. Scale line; 335. Turntable; 336. Anti-slip texture. Detailed Implementation

[0027] Please see Figures 1-5 This utility model provides a technical solution: an automatic replenishment device for circuit board developer, including a developer tank 1, a storage tank 2 and a replenishment mechanism 3. The storage tank 2 is fixedly connected to the surface of the developer tank 1, and the replenishment mechanism 3 is disposed on the surface of the storage tank 2.

[0028] The following section will explain the specific setup and function of its supplementary mechanism 3.

[0029] In this embodiment: the replenishment mechanism 3 includes a replenishment component 31, an adjustment component 32 and an auxiliary component 33. The replenishment component 31 includes a replenishment pipe 311, which is connected to the surface of the liquid storage tank 2. A replenishment hole 312 is provided on the surface of the replenishment pipe 311.

[0030] A float plate 313 is slidably connected to the inner wall of the developer tank 1, a vertical rod 314 is fixedly connected to the surface of the float plate 313, and a sealing outer ring 315 is fixedly connected to the surface of the vertical rod 314.

[0031] The adjustment assembly 32 includes a fixed platform 321, which is fixedly connected to the surface of the developer tank 1. A screw 322 is rotatably connected to the inner wall of the fixed platform 321. A sleeve 323 is threadedly connected to the surface of the screw 322. A sealing inner ring 324 is fixedly connected to the inner wall of the sleeve 323.

[0032] The effects achieved by the above components are as follows: The replenishment pipe 311 and replenishment hole 312 are provided to facilitate the replenishment of developer from the storage tank 2 to the developer pool 1. The float 313, vertical rod 314 and sealing outer ring 315 are provided so that when the water level drops, the float 313 drops accordingly, driving the vertical rod 314 downward, so that the sealing outer ring 315 no longer blocks the replenishment hole 312, so that replenishment can be carried out. When the water level recovers, the float 313 rises accordingly, driving the vertical rod 314 to reset, so that the sealing outer ring 315 continues to block the replenishment hole 312, avoiding excessive replenishment of developer. The fixed platform 321, screw 322, sleeve 323 and sealing inner ring 324 are provided so that when the screw 322 is rotated, the sleeve 323 and sealing inner ring 324 are driven downward, blocking part of the replenishment hole 312, so that replenishment will only be carried out after the water level drops to a certain level.

[0033] Specifically, there are multiple sets of replenishment holes 312, which are evenly arranged on the side surface of the replenishment pipe 311 away from the liquid storage tank 2.

[0034] The effects achieved by the above components are as follows: setting multiple sets of replenishment holes 312 is to enable rapid replenishment of liquid when the developer water level drops rapidly, and also to facilitate setting a preset water level by blocking some of the replenishment holes 312. The replenishment holes 312 are located on the side of the replenishment pipe 311 away from the storage tank 2 to facilitate replenishment of liquid into the developer pool 1.

[0035] Specifically, the vertical rod 314 is installed inside the replenishment tube 311, and the sealing outer ring 315 is slidably connected to the inner wall of the replenishment tube 311.

[0036] The effect achieved by the above components is that the vertical rod 314 and the sealing outer ring 315 are designed to facilitate the sealing or opening of the liquid replenishment hole 312 as the water level and the float 313 move up and down.

[0037] Specifically, the sleeve 323 is sleeved and connected to the surface of the replenishing tube 311, and the sealing inner ring 324 is slidably connected to the surface of the replenishing tube 311.

[0038] The effect achieved by the above components is as follows: the sleeve 323 and the inner sealing ring 324 are set so that when the sleeve 323 and the inner sealing ring 324 are used to block part of the liquid replenishment hole 312, liquid replenishment will only be carried out when the water level drops to a certain level, so that the float 313 drives the vertical rod 314 and the outer sealing ring 315 to move down to the unblocked liquid replenishment hole 312.

[0039] Specifically, the surface of the fixed platform 321 is provided with a guide groove 325, the screw 322 is disposed inside the guide groove 325, and the sleeve 323 is slidably connected to the surface of the guide groove 325.

[0040] The effect achieved by the above components is that the guide groove 325 is provided to increase the stability of the sleeve 323 when it moves up and down.

[0041] Specifically, the auxiliary component 33 includes a guide rod 331, which is fixedly connected to the surface of the developer tank 1, and a float plate 313 is slidably connected to the surface of the guide rod 331. A clearance groove 332 is provided on the surface of the float plate 313.

[0042] The effects achieved by the above components are as follows: the guide rod 331 is set to increase the stability of the floating plate 313 when it moves up and down, and the clearance groove 332 is set to facilitate the placement or removal of the circuit board to be soaked.

[0043] Specifically, a pointer 333 is fixedly connected to the surface of the sleeve 323, and a scale line 334 is provided on the surface of the fixed platform 321. There are two sets of pointers 333 and scale lines 334, and they are arranged symmetrically.

[0044] The effects achieved by the above components are as follows: setting pointer 333 and scale line 334 is to make it easier to intuitively understand the moving distance of sleeve 323 and sealing inner ring 324, thereby making it easier to accurately set and adjust the preset water level; setting two sets of pointer 333 and scale line 334 is to make it easier to observe from both sides.

[0045] Specifically, a turntable 335 is fixedly connected to the surface of the screw 322. The surface of the turntable 335 is provided with anti-slip textures 336. The anti-slip textures 336 are in multiple sets and are evenly distributed around the circumference.

[0046] The effects achieved by the above components are as follows: the turntable 335 is set to facilitate the rotation of the screw 322, and the anti-slip texture 336 is set to increase friction and prevent slippage when rotating the turntable 335.

[0047] Working principle: By setting up a replenishment mechanism 3, sufficient developer is pre-stored in the storage tank 2. When the developer level in the developer pool 1 decreases, the float 313 and guide rod 331 move downwards, causing the vertical rod 314 to move downwards, so that the sealing outer ring 315 no longer blocks the replenishment hole 312. The developer flows from the storage tank 2 into the developer pool 1 through the replenishment hole 312 on the replenishment pipe 311, realizing automatic replenishment of the developer. As the developer is gradually replenished, the water level gradually rises, driving the float 313... 3. With guide rod 331 pointing upwards, vertical rod 314 is reset. The outer sealing ring 315 is used to reseal the replenishment hole 312 to prevent excessive replenishment of developer. If it is necessary to replenish the developer only when the water level is below a certain level, and to stop replenishing when the water level is reached, simply rotate turntable 335 to rotate screw 322. With the help of observing pointer 333 and scale line 334, sleeve 323 is moved downwards to the appropriate position. The inner sealing ring 324 is used to seal an appropriate number of replenishment holes 312.

[0048] By setting up the replenishment mechanism 3, the developer can be automatically replenished in appropriate amounts as it is consumed. At the same time, a preset water level can be set so that replenishment will only occur when the developer level drops below the preset level, and replenishment will stop once the preset water level is reached. This effectively improves the convenience of the equipment.

Claims

1. A circuit board developer automatic replenishing device, comprising a developer tank (1), a liquid storage tank (2) and a replenishing mechanism (3), characterized in that: The storage tank (2) is fixedly connected to the surface of the developing solution tank (1), and the replenishment mechanism (3) is disposed on the surface of the storage tank (2); The replenishment mechanism (3) includes a replenishment component (31), an adjustment component (32) and an auxiliary component (33). The replenishment component (31) includes a replenishment tube (311), which is connected to the surface of the storage tank (2). A replenishment hole (312) is provided on the surface of the replenishment tube (311). The inner wall of the developing solution tank (1) is slidably connected to a float plate (313), and a vertical rod (314) is fixedly connected to the surface of the float plate (313). A sealing outer ring (315) is fixedly connected to the surface of the vertical rod (314). The adjustment assembly (32) includes a fixed platform (321), which is fixedly connected to the surface of the developer tank (1). A screw (322) is rotatably connected to the inner wall of the fixed platform (321), and a sleeve (323) is threadedly connected to the surface of the screw (322). A sealing inner ring (324) is fixedly connected to the inner wall of the sleeve (323).

2. The automatic developer replenishing device for a circuit board according to claim 1, wherein: The number of replenishment holes (312) is multiple sets, and the multiple sets of replenishment holes (312) are evenly arranged on the side surface of the replenishment pipe (311) away from the liquid storage tank (2).

3. The automatic circuit board developer replenishment device according to claim 1, characterized in that: The vertical rod (314) is located inside the replenishment tube (311), and the sealing outer ring (315) is slidably connected to the inner wall of the replenishment tube (311).

4. The automatic developer replenishing device for a circuit board according to claim 1, wherein: The sleeve (323) is sleeved and connected to the surface of the replenishment tube (311), and the sealing inner ring (324) is slidably connected to the surface of the replenishment tube (311).

5. The automatic developer replenishing device for a circuit board according to claim 1, characterized by: The surface of the fixed platform (321) is provided with a guide groove (325), the screw (322) is disposed inside the guide groove (325), and the sleeve (323) is slidably connected to the surface of the guide groove (325).

6. The automatic developer replenishing device for a circuit board according to claim 1, wherein: The auxiliary component (33) includes a guide rod (331), which is fixedly connected to the surface of the developer tank (1), and the float (313) is slidably connected to the surface of the guide rod (331). The surface of the float (313) is provided with a clearance groove (332).

7. The automatic developer replenishing apparatus for a circuit board according to claim 1, wherein: A pointer (333) is fixedly connected to the surface of the sleeve (323), and a scale line (334) is provided on the surface of the fixed platform (321). The number of pointers (333) and scale lines (334) are two sets and they are arranged symmetrically.

8. The automatic developer replenishing device for a circuit board according to claim 1, characterized by: A turntable (335) is fixedly connected to the surface of the screw (322). The surface of the turntable (335) is provided with anti-slip textures (336). The anti-slip textures (336) are in multiple sets and are evenly distributed around the circumference.

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