PCB etching device

Abstract

The utility model relates to the technical field of PCB (printed circuit board) etching, in particular to a PCB etching device, which comprises an etching pool, transmission belts positioned on two sides of the etching pool, and shaking mechanisms mounted on the transmission belts, the shaking mechanism comprises a moving frame, the moving frame is fixedly installed on the transmission belt, a fixed cylinder is fixedly installed on the moving frame, a deflection shaft is rotatably installed in the fixed cylinder, the deflection shaft is fixedly connected with a deflection seat, and an installation seat is installed on the deflection seat. According to the utility model, in the process that the transmission belt drives the moving frame to move, the deflection rod is in contact with the rack and is pushed by teeth on the rack, so that the deflection rod drives the deflection shaft to deflect, the etching mechanism is deflected, the deflection rod is reset after deflection, the etching mechanism is shaken, and the etching efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of PCB etching, specifically relates to a PCB etching device. BACKGROUND

[0002] PCB is the abbreviation of printed circuit board, it is a kind of basic assembly for supporting and connecting electronic components;Through PCB, reliable electrical connection between electronic components can be realized, so that the equipment can be normal operation;Printed circuit board etching refers to, after forming the etching resist circuit pattern on the surface of copper-clad laminate on PCB, removing the excess copper foil by selective etching, obtaining the conductor pattern.

[0003] Prior art, such as the utility model disclosed in patent publication No. CN221948467U, a kind of PCB etching device, including base;Fixedly connected on the top of base support;The containing mechanism installed on the support, containing mechanism includes the first containing assembly and the second containing assembly for placing the PCB to be etched, containing mechanism further includes the drive assembly for driving the first containing assembly and the second containing assembly.The utility model first places the PCB to be etched in the first containing assembly, places the PCB in the etching pool inside the containing net frame by the electric telescopic rod for etching, at the same time, the PCB to be etched is placed on the second containing assembly, after the PCB in the first containing assembly etching is completed, the first containing assembly is moved to the second operation table above by the forward and reverse motor, at the same time, the PCB stored in the second containing assembly is continuously moved to the etching pool above, reciprocating, can realize the continuous, fast, uniform etching of PCB.

[0004] The existing PCB is etched, because the PCB is in the stationary state in the containing assembly, the speed of removing copper foil by etching liquid is slow, leading to the low efficiency of etching.

[0005] Therefore, it is necessary to provide a new technical scheme to overcome the above defects. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a kind of PCB etching device that can effectively solve the above technical problems.

[0007] To achieve the purpose of the utility model, the following technical scheme is adopted: a kind of PCB etching device, comprising: etching pool, transmission belt on the both sides of etching pool, sway mechanism installed on transmission belt;

[0008] The sway mechanism includes: moving frame, the moving frame is fixedly installed on the transmission belt, the moving frame is fixedly installed with fixed cylinder, the fixed cylinder is rotatably installed with deflection shaft, the deflection shaft is fixedly connected with deflection seat, and the deflection seat is installed with mounting seat.

[0009] Further, the deflection seat is provided with a fixed hole, and the mounting seat is fixedly installed with an insertion rod which slides and penetrates through the fixed hole.

[0010] Further, the etching pool is provided with a limiting groove, and the moving frame is slidingly installed in the limiting groove.

[0011] Further, the deflection shaft is fixedly connected with a deflection rod which is in movable contact with the rack.

[0012] Further, the etching pool is provided with a fixed groove, and the teeth of the rack are fixedly installed in the fixed groove.

[0013] Compared with the prior art, the PCB etching device has the following beneficial effects: during the movement of the moving frame driven by the transmission belt, the deflection rod is in contact with the rack and is pushed by the teeth on the rack, so that the deflection rod drives the deflection shaft to deflect, and then the etching mechanism deflects, the deflection rod resets after deflection, the etching mechanism shakes, and the etching efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] The accompanying drawings are included to provide a further understanding of the present application, and constitute a part of the specification, and are used together with the embodiments of the present application to explain the present application, and do not constitute a limitation on the present application.

[0015] Figure 1 is a structural schematic view of the PCB etching device.

[0016] Figure 2 is a sectional structure schematic view of one side of the PCB etching device.

[0017] Figure 3 is a split structure schematic view of the shaking mechanism in the present application.

[0018] Figure 4 is a sectional structure schematic view of the other side of the PCB etching device.

[0019] Figure 5 is a split structure schematic view of the shaking mechanism in the present application. Figure 4 is an enlarged structure schematic view of A.

[0020] In the figure: 1, etching pool; 2, motor; 3, transmission belt; 4, rotating roller; 5, mounting frame; 6, etching frame; 7, moving frame; 8, fixed cylinder; 9, deflection shaft; 10, deflection rod; 11, deflection seat; 12, mounting seat; 13, insertion rod; 14, fixed hole; 15, fixed groove; 16, rack; 161, arc surface; 162, vertical plane; 17, sliding groove; 18, limiting groove. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the following will make a clear and complete description of the technical scheme in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of them.

[0022] In the description of the utility model, it needs to be understood that the orientation or position relationship indicated by the terms "center", "transverse", "longitudinal", "front", "back", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the protection scope of the utility model. When a mechanism is referred to as "fixed to" another mechanism, it can be directly on the other mechanism or there can be a central mechanism. When a mechanism is considered to be "connected" to another mechanism, it can be directly connected to the other mechanism or there can be a central mechanism. When a mechanism is considered to be "set on" another mechanism, it can be directly set on the other mechanism or there can be a central mechanism. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for illustrative purposes.

[0023] As Figures 1 to 4 shown, the utility model relates to a kind of PCB etching device, comprising: etching pool 1, transmission belt 3 located at the both sides of etching pool 1, sway mechanism installed on transmission belt 3, etching mechanism for containing PCB board.

[0024] The both sides of the etching pool 1 are equipped with limiting groove 18, symmetrically equipped with sliding groove 17 on the top of etching pool 1, the length of sliding groove 17 and limiting groove 18 is same, fixed groove 15 is equipped in sliding groove 17;Rotary roller 4 is rotatably installed at the both ends of etching pool 1, transmission belt 3 is symmetrically movably installed at the both ends of rotary roller 4, and the top of transmission belt 3 is flush with the top of etching pool 1;One rotary roller 4 is fixedly connected with the output shaft of motor 2, and motor 2 is fixedly installed on support frame, and support frame is fixedly installed on etching pool 1.

[0025] The length of etching pool 1 needs to be long enough, and the time of etching mechanism moving in etching pool 1 is enough for etching liquid to complete etching to PCB board.

[0026] The shaking mechanism comprises a moving frame 7 fixedly installed on the transmission belt 3 and slidingly installed in a limiting groove 18 and a sliding groove 17, so that the moving frame 7 is not affected by the vibration of the transmission belt 3 during movement; the moving frame 7 is fixedly installed with a fixed cylinder 8, the fixed cylinder 8 is rotatably installed with a deflection shaft 9, the deflection shaft 9 is fixedly connected with a deflection rod 10, the deflection rod 10 is in active contact with a rack 16, the teeth of the rack 16 are fixedly installed in a fixed groove 15, and the length of the deflection rod 10 is much greater than the height of the teeth on the rack 16, so that when the teeth on the rack 16 push the deflection rod 10 to deviate, the deflection angle of the deflection rod 10 is small; the deflection shaft 9 is fixedly connected with a deflection seat 11, and the deflection seat 11 is installed with a mounting seat 12; the deflection seat 11 is provided with a fixed hole 14, and the mounting seat 12 is fixedly installed with an insertion rod 13 sliding through the fixed hole 14.

[0027] The teeth of the rack 16 are provided with an arc surface 161 and a vertical plane 162, and the arc surface 161 and the vertical plane 162 intersect, so that when the deflection rod 10 moves, the deflection rod 10 is limited by the position where the arc surface 161 and the vertical plane 162 intersect, the deflection rod 10 is deflected, one end of the deflection rod 10 descends along the arc surface 161, and the deflection rod 10 can drive the deflection seat 11 to shake, the deflection seat 11 drives the mounting seat 12 to shake, and the mounting seat 12 drives the etching mechanism to shake.

[0028] During the movement of the transmission belt 3 driving the moving frame 7, the deflection rod 10 is in contact with the rack 16 and is pushed by the teeth on the rack 16, so that the deflection rod 10 drives the deflection shaft 9 to deflect, and then the etching mechanism deflects, the deflection rod 10 resets after deflection, the etching mechanism shakes, and the etching efficiency is improved; the shaking amplitude of the etching mechanism is small, and the shaking amplitude is between 5° and 15°; when the shaking amplitude of the etching mechanism is too large, the insertion rod 13 is easy to be separated from the fixed hole 14, causing the etching mechanism to fall off, therefore, the length of the deflection rod 10 is much greater than the height of the teeth on the rack 16, so that when the teeth on the rack 16 push the deflection rod 10 to deviate, the deflection angle of the deflection rod 10 is small, the etching mechanism shakes slightly, and the etching liquid can wash away the dust on the PCB board.

[0029] The etching mechanism comprises a mounting frame 5 fixedly connected at both ends to two mounting seats 12; the mounting frame 5 is fixedly installed at the bottom with an etching frame 6, the inner wall bottom of the etching frame 6 is arc-shaped, and the bottom of the etching frame 6 is uniformly provided with through holes; when the PCB board is placed in the etching frame 6, the edges of the PCB board will be in contact with the arc-shaped bottom inside the etching frame 6, so that the upper and lower sides of the PCB board can be in full contact with the etching liquid, the side surface of the PCB board is prevented from being in contact with the inner wall of the etching frame 6, and the problem of uneven etching caused by the fact that part of the area of the PCB board is not in contact with the etching liquid is avoided.

[0030] Working principle:

[0031] The PCB board is placed in the etching frame 6, the edge of the PCB board is in contact with the arc-shaped bottom inside the etching frame 6, so that the upper and lower sides of the PCB board can be in full contact with the etching liquid; the motor 2 is started, the output shaft of the motor 2 drives the rotating roller 4 to rotate, the rotating roller 4 drives the transmission belt 3 to run, the transmission belt 3 drives the moving frame 7 to move in the limiting groove 18 and the sliding groove 17, the moving frame 7 drives the fixed cylinder 8 to move, the fixed cylinder 8 drives the deflection shaft 9 to move, the deflection shaft 9 drives the deflection rod 10 to move, the deflection rod 10 is blocked by the teeth on the rack 16 during movement, so that the deflection rod 10 is pushed and deflected by the teeth on the rack 16, so that the deflection rod 10 is intermittently deflected, and the deflection rod 10 is lowered along the arc surface 161 after deflection, so that the deflection rod 10 can drive the deflection seat 11 to shake, the deflection seat 11 drives the mounting seat 12 to shake, the mounting seat 12 drives the mounting frame 5 to shake, the mounting frame 5 drives the etching frame 6 to shake, increases the etching effect of the etching liquid on the PCB board, improves the etching speed, improves the etching efficiency, and the etching liquid can wash away the dust on the PCB board; when the moving frame 7 moves to the other end of the limiting groove 18, the etching mechanism can be disassembled.

[0032] The standard parts used in the utility model can be purchased from the market, and the special-shaped parts can be ordered according to the description and the drawings, and the specific connection mode of each part adopts the conventional means such as bolts, rivets and welding in the prior art, and the machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, which will not be described in detail here, and the contents not described in detail in the specification belong to the prior art known to those skilled in the art.

[0033] It should be understood that those skilled in the art can improve or change according to the above description, and all these improvements and changes shall belong to the protection scope of the claims of the utility model.

Claims

1. A PCB etching apparatus, characterized by, Include: Etching tank (1), drive belt (3) located on both sides of the etching tank (1), installed on the drive belt (3) shaking mechanism; The shaking mechanism comprises: a moving frame (7) fixedly installed on the drive belt (3), a fixed cylinder (8) fixedly installed on the moving frame (7), a deflection shaft (9) rotatably installed in the fixed cylinder (8), a deflection seat (11) fixedly connected with the deflection shaft (9), and a mounting seat (12) installed on the deflection seat (11).

2. The PCB etching device of claim 1, wherein, The deflection seat (11) is provided with a fixed hole (14), and the mounting seat (12) is fixedly provided with a plug rod (13), and the plug rod (13) slides and penetrates through the fixed hole (14).

3. The PCB etching device of claim 1, wherein, The etching tank (1) is provided with a limiting groove (18), and the moving frame (7) is slidingly installed in the limiting groove (18).

4. The PCB etching device of claim 1, wherein, The deflection shaft (9) is fixedly connected with a deflection rod (10), and the deflection rod (10) is in movable contact with a rack (16).

5. A PCB etching apparatus as claimed in claim 4, wherein the etching chamber is a cylindrical chamber having a diameter of 300mm and a height of 300mm. The etching tank (1) is provided with a fixed groove (15), and the teeth of the rack (16) are fixedly installed in the fixed groove (15).

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