Developing machine for thin circuit board production

Abstract

The utility model relates to the technical field of circuit board production, in particular to a developing machine for thin circuit board production, which comprises a liquid collecting frame, supporting plates are arranged on two sides of the liquid collecting frame, a roller way conveying line is arranged between the two supporting plates, an isolation plate is arranged at the tops of the two supporting plates, a motor is mounted on one side of the isolation plate, and the roller way conveying line is arranged on the other side of the isolation plate. A plurality of screw rods are rotationally mounted on the isolation plate, and one of the screw rods is directly connected with an output shaft of the motor. Through cooperation of the motor, the belt pulley set, the screw rod, the moving blocks and the high-pressure nozzles, linear motion of the high-pressure nozzles can be realized, the high-pressure nozzles can perform spraying operation on the surface of a circuit board in different directions by utilizing the design that the moving blocks move in opposite directions, uniform distribution of a developing solution is ensured, and the consistency of the developing effect is remarkably improved through the design; and the problem of insufficient local development is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of circuit board production, especially to a thin type circuit board production developing machine. BACKGROUND

[0002] With the rapid development of electronic technology, thin type circuit boards are more and more widely used in various electronic products. Thin type circuit boards have the characteristics of small size, light weight, high reliability, etc. and are widely used in computer, communication equipment, consumer electronics, automotive electronics and other fields. In the production process of thin type circuit boards, developing is one of the key steps, which directly affects the quality and performance of the circuit board.

[0003] The patent with the patent authorization announcement number CN221239181U discloses a printed circuit board developing liquid supply system. The patent sprays the developing liquid to the printed circuit board through the spray pipe, thereby cleaning and removing the unaggregated photosensitive film and ink impurities on the surface of the printed circuit board. The used developing liquid with unaggregated photosensitive film and ink impurities falls into the recovery tank for collection. The developing liquid in the recovery tank is filtered by the filter assembly to remove solid impurities, and then returns to the liquid supply tank. The developing liquid in the liquid supply tank is transported to the spray pipe through the liquid supply port, thereby realizing the recycling of the developing liquid. However, the patent still has some deficiencies in actual application. The position of the spray pipe in the patent is not adjustable, and it can only spray developing liquid at a fixed position. The spraying effect is not good, which leads to uneven distribution of the developing liquid on the surface of the circuit board, inconsistent developing effect, and affects the quality of the circuit board.

[0004] To solve the above problems, the utility model provides a thin type circuit board production developing machine which can ensure uniform distribution of developing liquid. UTILITY MODEL CONTENTS

[0005] In order to overcome the shortcomings of the existing patent that the position of the spray pipe is not adjustable, it can only spray developing liquid at a fixed position, which leads to uneven distribution of the developing liquid on the surface of the circuit board, inconsistent developing effect, and affects the quality of the circuit board, the utility model provides a thin type circuit board production developing machine which can ensure uniform distribution of developing liquid.

[0006] To achieve the above problems, the utility model discloses the following technical scheme: a thin circuit board production developing machine, including the liquid collecting frame, both sides of the liquid collecting frame are provided with the supporting plate, the roller way conveying line is provided between two supporting plates, the common isolation plate of two supporting plate top is provided with the motor on one side of the isolation plate, the rotation is installed with a plurality of screw rods on the isolation plate, one of the screw rod is directly connected with the output shaft of the motor, and the rest screw rod is connected through a group of belt pulley groups, forms a synchronous transmission system, and is equipped with a moving block on each screw rod, the moving block realizes linear motion through the thread cooperation with the screw rod, and the movement direction of every adjacent two moving blocks is opposite, the high-pressure spray head is arranged on the moving block, the retractable pipe is connected on each high-pressure spray head, the connecting pipe is fixedly installed on both sides of the liquid collecting frame, each retractable pipe is connected with the connecting pipe, and the water pump is assembled on each connecting pipe, and the drain pipe is arranged on one side of the liquid collecting frame.

[0007] Further, the inside of the liquid collecting frame is provided with a filter frame that can be slidably pulled out, one side of the filter frame is provided with a handle, the inside of the filter frame is provided with a filter core, and a plurality of filter screens are arranged above the filter core.

[0008] Further, the adjusting frame is freely slid on the guide rod, and a lead screw is rotatably installed on the top front side of the supporting plate, the lead screw is threadedly connected with the adjacent adjusting frame, and a hand wheel is arranged at the top end of the lead screw.

[0009] Further, the handle is externally sleeved with an antiskid sleeve.

[0010] Further, the hand wheel is externally sleeved with a rubber ring.

[0011] Further, the bottom of the liquid collecting frame is provided with a protection plate.

[0012] Compared with the prior art, the utility model has the following technical effects: 1, through the cooperation of the motor, the belt pulley group, the screw rod, the moving block and the high-pressure spray head, the linear motion of the high-pressure spray head can be realized, and the design of the opposite direction movement between the moving blocks makes the high-pressure spray head can be sprayed on the surface of the circuit board in different directions, ensures that the developing liquid is uniformly distributed, and the consistency of the developing effect is improved, and the problem of insufficient local development is avoided.

[0013] 2. The utility model discloses a filter frame can be slidably pulled in the liquid collecting frame, and the filter core and multilayer filter screen are arranged in the frame to filter the developing solution, which can effectively remove impurities in the developing solution, improve the purity and reuse rate of the developing solution, and reduce resource waste and environmental pollution.

[0014] 3. The utility model discloses a supplementary moving device is added to the upper of roller conveyor line and is composed of adjusting frame, rotary rod, guide rod, screw rod and hand wheel, utilizes rotary rod to rotate along with the advance of circuit board, and provides the limiting action, avoids the deviation or vibration of circuit board in the transmission process, improves the stability of transmission process. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the three-dimensional structure schematic diagram of the utility model.

[0016] Figure 2 It is the three-dimensional sectional view of the utility model liquid collecting frame, water pump and drain pipe and other parts.

[0017] Figure 3 It is the three-dimensional structure schematic diagram of the utility model support plate and roller conveyor line.

[0018] Figure 4 It is the three-dimensional structure schematic diagram of the utility model screw rod, moving block and connecting pipe and other parts.

[0019] Figure 5 It is the local structure schematic diagram of the utility model motor, belt pulley group and high pressure shower head and other parts.

[0020] Figure 6 It is the local sectional view of the utility model filter frame, filter core and multilayer filter screen and other parts.

[0021] Figure 7 It is the three-dimensional structure schematic diagram of the utility model support plate, adjusting frame and rotary rod and other parts.

[0022] Figure 8 It is the three-dimensional structure schematic diagram of the utility model guide rod, screw rod and hand wheel and other parts.

[0023] Drawing reference: 1, liquid collecting frame, 2, support plate, 3, roller conveyor line, 4, isolation plate, 5, motor, 51, belt pulley group, 6, screw rod, 7, moving block, 8, high pressure shower head, 9, telescopic pipe, 10, connecting pipe, 11, water pump, 12, drain pipe, 13, filter frame, 14, filter core, 15, multilayer filter screen, 16, handle, 17, adjusting frame, 18, rotary rod, 19, guide rod, 20, screw rod, 21, hand wheel, 22, antiskid sleeve, 23, rubber ring, 24, protection plate. DETAILED DESCRIPTION

[0024] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0025] Embodiment 1: Please refer to Figures 1-5 A thin circuit board production developing machine, comprising a liquid collecting frame 1, support plates 2 are arranged on the left and right sides of the liquid collecting frame 1, a roller conveyor line 3 is arranged between the two support plates 2 for conveying thin circuit boards, an isolation plate 4 is arranged at the top of the two support plates 2, a motor 5 is installed on the right side of the isolation plate 4, five screw rods 6 are rotatably installed on the isolation plate 4, one of the screw rods 6 is directly connected with the output shaft of the motor 5, and the remaining screw rods 6 are connected with each other through a group of belt pulley sets 51 to form a synchronous transmission system, each of the screw rods 6 is equipped with a moving block 7, the moving block 7 realizes linear motion through thread cooperation with the screw rod 6, and every adjacent two moving blocks 7 are oppositely arranged in the motion direction, so as to ensure that the developing liquid is uniformly distributed on the surface of the circuit board, a high-pressure spray head 8 is arranged on the moving block 7 for spraying the developing liquid, an extension pipe 9 is connected with each high-pressure spray head 8, connecting pipes 10 are fixedly installed on the left and right sides of the liquid collecting frame 1, each extension pipe 9 is connected with the adjacent connecting pipe 10, and a water pump 11 is arranged on each connecting pipe 10 to ensure continuous supply of the developing liquid, a drain pipe 12 is arranged on one side of the liquid collecting frame 1 for discharging used developing liquid, and a protection plate 24 is arranged at the bottom of the liquid collecting frame 1, which can prevent the bottom of the liquid collecting frame 1 from directly contacting the ground or other hard surfaces to avoid damage caused by collision or scratching.

[0026] When the device is used, first, the exposed thin circuit board is placed on the roller conveyor line 3, the toothed belt transmission group stably conveys the circuit board to the developing area, the circuit board enters below the isolation plate 4, then, the motor 5 and the water pump 11 are started, the water pump 11 inputs the developing liquid into the high-pressure spray head 8 through the connecting pipe 10 and the extension pipe 9, the motor 5 drives the five screw rods 6 to rotate through cooperation with the belt pulley set 51, the moving block 7 drives the high-pressure spray head 8 to move linearly through thread cooperation with the screw rod 6, and the opposite motion design between the moving blocks 7 makes each pair of high-pressure spray heads 8 move relatively, so as to spray the circuit board surface from different directions, ensure that the developing liquid is uniformly sprayed on the circuit board surface, and ensure that each part of the circuit board can fully contact the developing liquid to achieve the best developing effect.

[0027] Embodiment 2: Based on embodiment 1, please refer toFigure 6 The inside of the collecting frame 1 is provided with a filter frame 13 which can be pulled out and pushed in, the front side of the filter frame 13 is provided with a handle 16, which facilitates the operator to pull out or push in the filter frame 13, the outside of the handle 16 is sleeved with an anti-skid sleeve 22, which plays a protective role and prevents hands from slipping during operation, the inside of the filter frame 13 is provided with a filter core 14, and the top of the filter core 14 is provided with a plurality of filter screens 15, the filter core 14 and the plurality of filter screens 15 are combined to realize double filtration of the developer.

[0028] The used developer falls into the collecting frame 1 for recycling, and then is filtered through the filter core 14 and the plurality of filter screens 15 to remove the photosensitive film, ink and other impurities in the developer, so that the purity and reusability of the developer are improved, and the filtered developer can be discharged through the drain pipe 12 for further processing or reuse.

[0029] Please refer to Figure 7 and Figure 8 The inside of each of the two supporting plates 2 is provided with an adjusting frame 17, 16 groups of rotating rods 18 are jointly and rotatably installed on the adjusting frames 17, the rotating rods 18 are located above the roller conveying line 3 and are used to assist the circuit board to move forward, the top of the left supporting plate 2 is fixedly connected with front and back symmetrically distributed guide rods 19, the top of the right supporting plate 2 is also fixedly connected with guide rods 19 at the rear side, the adjusting frames 17 can freely slide on the guide rods 19 to adapt to circuit boards of different sizes, and the top of the right supporting plate 2 is rotatably installed with a lead screw 20 at the front side, the lead screw 20 is threadedly connected with the adjacent adjusting frame 17, the top end of the lead screw 20 is provided with a hand wheel 21, and a rubber ring 23 is sleeved on the hand wheel 21, so that the friction between the hand wheel 21 and the operator's hand is increased, the operator can more easily rotate the hand wheel 21, and the accuracy and convenience of adjustment are improved.

[0030] When placing a thin circuit board, the adjusting frame 17 is first adjusted to a suitable height by rotating the hand wheel 21, and then the thin circuit board is placed between the rotating rod 18 and the roller conveying line 3, in the moving process of the thin circuit board, the rotating rod 18 can rotate with the forward movement of the circuit board and provide a limiting action, so as to assist the circuit board to stably move forward and ensure the stability of the transmission process.

[0031] The above embodiments are only preferred embodiments of the present application, and are not used to limit the application scope of the present application, so that equivalent changes made according to the content described in the claims of the present application should be included in the scope of the claims of the present application.

Claims

1. A thin circuit board production developing machine, comprising a liquid collection frame (1), wherein support plates (2) are provided on both sides of the liquid collection frame (1), and a roller conveyor line (3) is provided between the two support plates (2), characterized in that, An isolation plate (4) is provided on the top of both support plates (2). A motor (5) is installed on one side of the isolation plate (4). Multiple screws (6) are rotatably mounted on the isolation plate (4). One screw (6) is directly connected to the output shaft of the motor (5), while the remaining screws (6) are interconnected through a set of pulleys (51) to form a synchronous transmission system. Each screw (6) is equipped with a moving block (7), which is connected to the screw (6) via a pulley. The threaded engagement enables linear motion, and the movement directions of each pair of adjacent moving blocks (7) are opposite. Each moving block (7) is equipped with a high-pressure nozzle (8), and each high-pressure nozzle (8) is connected to a telescopic pipe (9). Both sides of the liquid collection frame (1) are fixedly installed with connecting pipes (10). Each telescopic pipe (9) is connected to the adjacent connecting pipe (10). Each connecting pipe (10) is equipped with a water pump (11). A drain pipe (12) is provided on one side of the liquid collection frame (1).

2. The thin circuit board production developing machine according to claim 1, characterized in that, The liquid collection frame (1) is provided with a sliding and pull-out filter frame (13). A handle (16) is provided on one side of the filter frame (13). A filter element (14) is provided inside the filter frame (13). A multi-layer filter screen (15) is provided above the filter element (14).

3. A thin circuit board production developing machine according to claim 2, characterized in that, Both support plates (2) are provided with adjustment frames (17), and the two adjustment frames (17) are rotatably mounted with multiple sets of rotating rods (18). The rotating rods (18) are located above the roller conveyor line (3). The top of one support plate (2) is fixedly connected with symmetrically distributed guide rods (19), and the rear top of the other support plate (2) is also fixedly connected with guide rods (19). The adjustment frame (17) can slide freely on the guide rods (19). The front top of the support plate (2) is rotatably mounted with a lead screw (20). The lead screw (20) is threadedly connected to the adjacent adjustment frame (17). The top of the lead screw (20) is provided with a handwheel (21).

4. A thin circuit board production developing machine according to claim 3, characterized in that, The handle (16) is covered with an anti-slip sleeve (22).

5. A thin circuit board production developing machine according to claim 4, characterized in that, A rubber ring (23) is fitted on the handwheel (21).

6. A thin circuit board production developing machine according to claim 5, characterized in that, The bottom of the liquid collection frame (1) is provided with a protective plate (24).

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