CN217693903U

CN217693903U - Novel etching groove for circuit board

Info

Publication number: CN217693903U
Application number: CN202220424978.0U
Authority: CN
Inventors: 谢信韦; 曾宪兰; 黄金; 张奇飞
Original assignee: Suzhou Jidao Electrode Technology Co ltd
Current assignee: Suzhou Jidao Electrode Technology Co ltd
Priority date: 2022-03-01
Filing date: 2022-03-01
Publication date: 2022-10-28
Anticipated expiration: 2032-03-01

Abstract

The utility model discloses a novel circuit board with etching groove, including the etching groove, the distributor is installed on the etching inslot top, it has the hose to go up distributor bottom threaded connection, hose bottom threaded connection has the shower nozzle, shower nozzle through connection has the crossbearer, electric putter a is installed on the crossbearer right side, electric putter a installs the surface at the support frame, the distributor is installed down to the bottom in the etching groove, electric putter b is installed in the support frame outside, it passes through feed liquor pipe an and water pump intercommunication to go up the distributor, the water pump is located the left side of filter box, filter box and etching case intercommunication, the motor is installed to the etching case top, the welding of etching case outside has the shell. The spray heads on the upper side and the lower side of the circuit board can move from front to back and from left to right to etch the circuit board, so that uneven etching can be avoided; the cooperation of heating band, motor and filter box avoids impurity etc. to spray the circuit board surface, influences the etching quality.

Description

Novel etching groove for circuit board

Technical Field

The utility model relates to a novel circuit board with etching the groove specifically is a novel circuit board with etching the groove, belongs to circuit board technical field.

Background

The circuit board can be called as a printed circuit board or a printed circuit board, the English name is PCB, FPC (flexible printed circuit board) which is made of polyimide or polyester film as a base material and has high reliability, excellent flexibility, high wiring density, light weight, thin thickness and good bending property, and a rigid-flexible printed circuit board.

The patent number CN 204392690U discloses an etching groove of a printed circuit board, which is of a square structure as a whole and is additionally provided with an air inlet channel; the air inlet channel is bent, the lower end of the air inlet channel is close to the bottom surface of the etching groove, and the upper end of the air inlet channel extends out of the outer wall of the etching groove; the bottom of the etching groove is also provided with a liquid outlet, and the outside of the etching groove is also provided with a cover. Air is ensured to enter during etching, and when gas passes through the solution, the surface is ensured to have continuous fresh etchant, so that dissolved metal is washed away; the oxidation capacity is improved, and the etchant is regenerated; the liquid outlet is convenient for discharging liquid. Wherein, a bracket can be arranged inside the etching groove, and a layer of filter screen is arranged on the bracket. Thus, foreign materials and impurities can be better removed. Therefore, the bracket is arranged at the opening end of the etching groove, the filter screen is arranged on the bracket, and the oil absorption cotton layer is arranged on the filter screen, so that foreign matters and other impurities falling from the surface of the plate in the production process can be effectively removed, and the production quality is improved.

The prior art circuit board has the following disadvantages: 1. when the circuit board is etched by spraying the spray head, the edge of the board is etched faster than the central part of the board due to the fixed position of the spray head, and the circuit board is etched unevenly; 2. the etching solution is easy to separate out after being placed for a long time or at low temperature, and impurities and precipitates in the etching solution are sprayed out by a spray head and then block the plate surface during etching, so that the etching effect is influenced, and therefore, the problems are improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems and provide a novel etching bath for a circuit board, wherein the spray heads on the upper side and the lower side of the circuit board can move from front to back and from left to right to etch the circuit board, thereby avoiding uneven etching; the cooperation of the heating belt 22, the motor and the filter box prevents impurities and the like from being sprayed on the surface of the circuit board to influence the etching quality.

The utility model discloses a following technical scheme realizes above-mentioned purpose, a novel circuit board with etching groove, including the etching groove, the distributor is installed on etching inslot top, it has the hose to go up distributor bottom threaded connection, hose bottom threaded connection has the shower nozzle, shower nozzle through connection has the crossbearer, electric putter a is installed on the crossbearer right side, electric putter a installs the surface at the support frame, etching inslot bottom is installed down the distributor, electric putter b is installed in the support frame outside, it passes through feed liquor pipe an and water pump intercommunication to go up the distributor, the water pump is located the left side of filter box, filter box and etching box intercommunication, the motor is installed to the etching box top, the welding of etching box outside has the shell.

Preferably, a grid plate is installed in the etching groove, and the grid plate is positioned below the circuit board.

Preferably, the circuit board is positioned between the upper distributor and the lower distributor, and the two sides in the etching tank are fixedly connected with the sliding frames.

Preferably, the carriage is slidably connected with a support frame, the cross frame is slidably connected to the inner side of the support frame, and the electric push rod b is installed on the outer side of the etching bath.

Preferably, the lower distributor is in threaded connection with a liquid inlet pipe b, and the liquid inlet pipe b is in threaded connection with a liquid inlet pipe a.

Preferably, the filter box is internally provided with double-layer filter cotton, and the power output end of the motor is connected with the power input end of the stirring shaft.

Preferably, a heating belt is adhered to the inner surface of the shell, and the heating belt is connected to the outer side of the etching box in a surrounding mode.

Preferably, the right side of the upper distributor is fixedly connected with a connecting frame, and the connecting frame is arranged on the inner surface of the etching tank.

The utility model has the advantages that:

1. the spray heads on the upper side and the lower side of the circuit board can move left and right and front and back to etch the circuit board, so that uneven etching can be avoided; when the circuit board is etched, the circuit board is put on a grid plate in an etching bath from one side of the etching bath and fixed, after the circuit board is fixed, a water pump is started to extract and convey the filtered etching solution into a liquid inlet pipe a, the liquid inlet pipe a is connected with a liquid inlet pipe b, part of the etching solution can be conveyed into a lower distributor through the liquid inlet pipe b, the etching solution in the liquid inlet pipe a is conveyed upwards into an upper distributor, the upper distributor and the lower distributor have the same structure and can simultaneously etch two sides of the circuit board, the etching solution is uniformly conveyed into a hose through the upper distributor, a spray head connected by the hose is sprayed downwards to the surface of the circuit board, the hose can be bent at will and has certain flexibility, an electric push rod a in a support frame is started to drive a connected cross frame to move left, and the spray head is fixed in the cross frame, can follow the crossbearer slow movement, the sustainable left side that moves of shower nozzle is etched the circuit board left side, move to the rightmost back, electric putter a shortens and drives shower nozzle right side on the crossbearer and move and etch the circuit board, the shower nozzle can be under electric putter a effect left and right reciprocating motion, the electric putter b outside the etching groove starts simultaneously, electric putter b starts to drive the support frame of connection and moves forward along the balladeur train, the crossbearer is in the support frame, the shower nozzle moves forward and etches the circuit board, it shortens and drives the shower nozzle and move backward to move to the back electric putter b of forefront back on the same reason, the shower nozzle can be under electric putter b effect reciprocating motion from beginning to end, accessible electric putter a and electric putter b cooperate and drive the shower nozzle along the circuit board about, reciprocating motion from beginning to end, can make circuit board surface etching even.

2. The heating belt, the motor and the filter box are matched to prevent impurities and the like from being sprayed on the surface of the circuit board to influence the etching quality; the etching box is provided with a motor which rotates at regular time, the motor drives a connected stirring shaft to rotate in the etching box, the stirring shaft drives etching liquid to rotate and mix, so that the etching liquid in the etching box can be uniformly mixed, and partial substances are prevented from being separated out.

Drawings

FIG. 1 is a schematic view of a partial cross-sectional structure of an etching bath according to the present invention;

FIG. 2 is a schematic view of a top view of the present invention in a partially sectioned structure;

FIG. 3 is a schematic view of a side view of the present invention in a partially sectioned configuration;

FIG. 4 is a schematic view of a partial structure of an etching chamber according to the present invention.

In the figure: 1. etching a groove; 2. an upper distributor; 3. a cross frame; 4. a support frame; 5. a liquid inlet pipe a; 6. a hose; 7. a spray head; 8. an electric push rod a; 9. a carriage; 10. a circuit board; 11. a grid plate; 12. a lower distributor; 13. a liquid inlet pipe b; 14. an electric push rod b; 15. a water pump; 16. a filter box; 17. double-layer filter cotton; 18. etching the box; 19. a motor; 20. a housing; 21. a stirring shaft; 22. heating the tape; 23. and a connecting frame.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Embodiment 1, please refer to fig. 1-4, a novel etching bath for circuit board comprises an etching bath 1, an upper distributor 2 is installed at the top end of the etching bath 1, a cover is installed at the top end of the etching bath 1, not shown in the figures, the upper distributor 2 can uniformly distribute etching solution in a liquid inlet pipe a5, a hose 6 is connected to the bottom end of the upper distributor 2 through a thread, the etching solution in the upper distributor 2 is conveyed downwards through the hose 6, a nozzle 7 is connected to the bottom end of the hose 6 through a thread, the etching solution is sprayed downwards through the nozzle 7 connected to the hose 6, a cross frame 3 is connected to the nozzle 7 through the thread, the nozzle 7 can be driven to move by the movement of the cross frame 3, an electric push rod a8 is installed at the right side of the cross frame 3, the electric push rod a8 stretches to drive the connected cross frame 3 to move left or right, the electric push rod a8 is installed on the surface of a supporting frame 4, the support frame 4 provides a mounting platform for an electric push rod a8, a lower distributor 12 is mounted at the bottom end of the etching bath 1, the lower distributor 12 and an upper distributor 2 are identical in structure and can spray etching liquid to the bottom end of a circuit board 10, an electric push rod b14 is mounted on the outer side of the support frame 4, the electric push rod b14 stretches and retracts to drive the support frame 4 connected with the support frame to move forwards or backwards, the upper distributor 2 is communicated with a water pump 15 through a liquid inlet pipe a5, the etching liquid pumped by the water pump 15 is conveyed into the liquid inlet pipe a5, the water pump 15 is positioned on the left side of a filter box 16, the water pump 15 is started to drive the etching liquid in the etching box 18 to be conveyed into the filter box 16, the filter box 16 is communicated with the etching box 18, a motor 19 is mounted at the top end of the etching box 18, the etching box 18 provides a mounting platform for the motor 19, and a shell 20 is welded on the outer side of the etching box 18.

Specifically, the etching bath 1 is internally provided with a grid plate 11, the grid plate 11 can provide support for the circuit board 10, so that the circuit board 10 is convenient to mount and fix, and the grid plate 11 is positioned below the circuit board 10.

Specifically, the circuit board 10 is located between the upper distributor 2 and the lower distributor 12, the upper distributor 2 and the lower distributor 12 have the same structure, both sides of the circuit board 10 can be etched at the same time, and the sliding frames 9 are fixedly connected to both sides in the etching tank 1.

Specifically, the carriage 9 is connected with the support frame 4 in a sliding manner, the support frame 4 can slide back and forth along the carriage 9, the cross frame 3 is connected to the inner side of the support frame 4 in a sliding manner, the cross frame 3 can slide left and right along the surface of the support frame 4, and the electric push rod b14 is installed on the outer side of the etching bath 1.

Specifically, the lower distributor 12 is in threaded connection with a liquid inlet pipe b13, etching liquid is conveyed into the lower distributor 12 through the liquid inlet pipe b13, the liquid inlet pipe b13 is in threaded connection with a liquid inlet pipe a5, and part of the etching liquid in the liquid inlet pipe a5 enters the liquid inlet pipe b 13.

Particularly, install double-deck filter pulp 17 in the filter box 16, double-deck filter pulp 17 can filter the etching liquid through filter box 16, motor 19's power take off end is connected with the power take off end of (mixing) shaft 21, and motor 19 rotates the (mixing) shaft 21 that drives the connection and rotates.

Specifically, the right side of the upper distributor 2 is fixedly connected with a connecting frame 23, the upper distributor 2 and the lower distributor 12 are both connected with the etching bath 1 through the connecting frame 23, the position of the distributors can be fixed, and the connecting frame 23 is installed on the inner surface of the etching bath 1.

Example 2: referring to fig. 2-3, the difference between the present embodiment and embodiment 1 is: the inner surface of the shell 20 is bonded with a heating belt 22, the shell 20 provides an installation platform for the heating belt 22, the heating belt 22 is connected to the outer side of the etching box 18 in a surrounding mode, a gap between the shell 20 and the etching box 18 is small, and etching liquid in the etching box 18 can be heated after the heating belt 22 is electrified.

When the utility model is used, the motor 19 (the motor is used for converting electric energy into mechanical energy according to the law of electromagnetic induction) on the etching box 18 rotates regularly, the model of the motor 19 is CH/CV, the motor 19 rotates to drive the connected stirring shaft 21 to rotate in the etching box 18, the stirring shaft 21 rotates to drive the etching liquid to rotate and mix, so that the etching liquid in the etching box 18 can be uniformly mixed to avoid partial substances from being separated out, when the external temperature is lower, the heating belt 22 bonded on the inner surface of the shell 20 is electrified, the model of the heating belt 22 is HT-001, the gap between the inner surface of the shell 20 and the outer surface of the etching box 18 is smaller, the heat generated after the heating belt 22 is electrified can quickly heat the air in the gap and then transmit the air to the etching box 18, meanwhile, the motor 19 starts to drive the etching liquid in the etching box 18 to rotate, the etching liquid rotates to enable the outer temperature-rising etching liquid to be mixed with the inner side etching liquid, so as to uniformly heat the etching liquid, keeping at a certain temperature, the etching solution can be prevented from being separated out at a low temperature, when the circuit board 10 is etched, the circuit board 10 is placed on the grid plate 11 in the etching tank 1 from one side of the etching tank 1 to be fixed, the water pump 15 is started when the etching solution is used after the circuit board 10 is fixed, the model of the water pump 15 is FS-103, the water pump 15 is connected with the filter box 16, and the filter box 16 is connected with the etching tank 18, so the etching solution in the etching tank 18 is conveyed outwards into the filter box 16 under the action of the water pump 15, the filter box 16 is internally provided with a double-layer filter cotton 17 which has a better filtering effect and can filter impurities and the like in the etching solution, the double-layer filter cotton 17 is double-layer, the filtering effect is better, the etching solution passing through the filter box 16 can be filtered, the impurities are prevented from being sprayed onto the surface of the circuit board 10 along with the spray head 7, the water pump 15 is started to extract the filtered etching solution to be conveyed into the liquid inlet pipe a5, the liquid inlet pipe a5 is connected with the liquid inlet pipe b13, partial etching liquid can be conveyed into the lower distributor 12 through the liquid inlet pipe b13, the etching liquid in the liquid inlet pipe a5 is conveyed upwards into the upper distributor 2, the upper distributor 2 and the lower distributor 12 have the same structure, both sides of the circuit board 10 can be etched simultaneously, the etching liquid is uniformly conveyed into the hose 6 through the upper distributor 2, the etching liquid is sprayed downwards through the spray head 7 connected with the hose 6 and sprayed onto the surface of the circuit board 10, the hose 6 can be bent randomly and has certain flexibility, the electric push rod a8 in the support frame 4 (after the electric motor in the electric push rod is decelerated through a gear, a pair of screw rod nuts are driven to change the rotary motion of the motor into linear motion, the push rod motion is completed by utilizing the forward and reverse rotation of the motor) to start and drive the connected transverse frame 3 to move to the left, the electric push rod a8 is XTL50, the spray head 7 is fixed in the transverse frame 3 and can move slowly along with the transverse frame 3, the left side of a circuit board 10 is etched by the aid of the spray head 7 which can move leftwards continuously, after the circuit board 10 is moved rightmost, the electric push rod a8 is shortened to drive the transverse frame 3 to move rightwards to etch the circuit board 10, the spray head 7 can reciprocate leftwards and rightwards under the action of the electric push rod a8, meanwhile, the electric push rod b14 outside the etching groove 1 is started, the model of the electric push rod b14 is XTL50, the electric push rod b14 is started to drive the connected support frame 4 to move forwards along the sliding frame 9, the transverse frame 3 is arranged in the support frame 4, namely, the spray head 7 moves forwards to etch the circuit board 10, the electric push rod b14 is shortened to drive the spray head 7 to move backwards after the circuit board is moved frontmost in a similar mode, the spray head 7 can reciprocate forwards and backwards under the action of the electric push rod b14, the spray head 7 can be driven to move leftwards and rightwards and backwards by the cooperation of the electric push rod a8 and the electric push rod b14 to move forwards, and backwards, and forwards, and backwards and forwards, and forwards etching of the surface of the circuit board 10 can be uniform.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present specification describes embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and it is to be understood that all embodiments may be combined as appropriate by one of ordinary skill in the art to form other embodiments as will be apparent to those of skill in the art from the description herein.

Claims

1. The utility model provides a novel circuit board is with etching groove, includes etching groove (1), its characterized in that: distributor (2) is installed to the top in etching groove (1), it has hose (6) to go up distributor (2) bottom threaded connection, hose (6) bottom threaded connection has shower nozzle (7), shower nozzle (7) through connection has crossbearer (3), electric putter a (8) are installed on crossbearer (3) right side, electric putter a (8) are installed on the surface of support frame (4), distributor (12) down are installed to etching groove (1) bottom end, electric putter b (14) are installed in the support frame (4) outside, go up distributor (2) and water pump (15) intercommunication through feed liquor pipe a (5), water pump (15) are located the left side of filter box (16), filter box (16) and etching case (18) intercommunication, motor (19) are installed on etching case (18) top, the welding of etching case (18) outside has shell (20).

2. The etching bath for circuit board according to claim 1, wherein: a grid plate (11) is installed in the etching groove (1), and the grid plate (11) is located below the circuit board (10).

3. A novel etching bath for circuit boards according to claim 2, wherein: the circuit board (10) is positioned between the upper distributor (2) and the lower distributor (12), and the two sides in the etching tank (1) are fixedly connected with sliding frames (9).

4. A novel etching bath for circuit boards according to claim 3, wherein: the slide frame (9) is internally and slidably connected with a support frame (4), the transverse frame (3) is slidably connected to the inner side of the support frame (4), and the electric push rod b (14) is arranged on the outer side of the etching groove (1).

5. The etching bath for circuit board according to claim 1, wherein: the lower distributor (12) is in threaded connection with a liquid inlet pipe b (13), and the liquid inlet pipe b (13) is in threaded connection with a liquid inlet pipe a (5).

6. The etching bath for circuit board according to claim 1, wherein: double-layer filter cotton (17) is installed in the filter box (16), and the power output end of the motor (19) is connected with the power input end of the stirring shaft (21).

7. A novel etching bath for circuit boards according to claim 1, wherein: and a heating belt (22) is adhered to the inner surface of the shell (20), and the heating belt (22) is connected to the outer side of the etching box (18) in a surrounding mode.

8. The etching bath for circuit board according to claim 1, wherein: the right side of the upper distributor (2) is fixedly connected with a connecting frame (23), and the connecting frame (23) is arranged on the inner surface of the etching tank (1).