Full-automatic circuit board developing, etching and stripping continuous production equipment

Abstract

The utility model discloses full-automatic circuit board developing, etching and film stripping continuous production equipment which comprises a film stripping chamber, a transmission shaft is arranged on the filter plate, the filter plate is driven by the transmission shaft to move back and forth in the film removing chamber, and a rotating blade for attaching a residual film layer is rotationally arranged on the filter plate; the guide rails are arranged on the two sides of the inner wall of the film stripping chamber. According to the full-automatic circuit board developing, etching and film stripping continuous production equipment, a circuit board is completely immersed in a film stripping solution, then a transmission shaft is driven to enable a filter plate to reciprocate in a film stripping chamber, a residual film layer floating in the film stripping solution is attached, and meanwhile, a rotating blade is driven to rotate through the liquid driving force of the film stripping solution; and the defoaming effect is achieved through rotation of the rotating blades, the flow speed of the film stripping liquid is driven to be increased, the reaction between the film stripping liquid and the circuit board is further accelerated, the used filter plate can be switched to be in a horizontal state for cleaning, and next use is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of etching and film stripping, in particular to a full-automatic circuit board developing, etching and film stripping continuous production equipment. Background Art

[0002] Etching and stripping usually refers to a process step in the circuit board manufacturing process. Etching refers to the use of chemical solutions and other methods to remove certain parts of the material from the surface of the semiconductor chip to form the desired structure. Stripping refers to the removal of the thin film layer that has been deposited on the surface.

[0003] In conjunction with publication number CN117729699A, publication date 2024-03-19, a circuit board DES line development, etching and film stripping device is disclosed.

[0004] In the prior art including the above patent, the telescopic end of the electric telescopic column drives the spray gun to move up and down to spray the defilming liquid on the material. When the spray gun drops too low and hits the material, the tension generated by the spring deformation pulls the telescopic end of the electric telescopic column to rise in time, thereby synchronously pulling the spray gun up to avoid the spray gun and the material from colliding and causing damage to the material. The above technology cooperates with the hemispherical column and the rotating plate so that the hemispherical column and the rotating plate rotate synchronously to disturb the defilming liquid, prevent the liquid from being sprayed unevenly on the material, and prevent the defilming liquid from being too concentrated when spraying, thereby reducing the defilming effect of the material. However, during the defilming process, the film layer that has been peeled off but not completely melted may float in the defilming liquid and aggregate into a mass, and continue to adhere to the circuit board, affecting subsequent operations. Utility Model Content

[0005] The utility model aims to provide a full-automatic circuit board developing, etching and film stripping continuous production equipment, which is used to solve the above problems.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fully automatic circuit board development, etching and film stripping continuous production equipment, including a film stripping chamber;

[0007] A filter plate is provided with a transmission shaft and is driven by the transmission shaft to reciprocate in the film stripping chamber. A rotating blade for attaching the residual film layer is rotatably provided on the filter plate, and the end of the rotating shaft of the rotating blade extends out of the filter plate;

[0008] The guide rails are arranged on both sides of the inner wall of the film stripping chamber, and the guide rails are slidably matched with the transmission shaft to enable the filter plate to switch between the vertical and horizontal states.

[0009] Preferably, the transmission shaft is rotatably arranged relative to the filter plate, and the guide rail comprises an upper guide rail and a lower guide rail, and both ends of the lower guide rail are inclined and extend to the guide sliding track of the upper guide rail.

[0010] Preferably, gears are provided at both ends of the rotating shaft of the rotating blade, a rack meshing with the gears is provided on the bottom surface of the inner wall of the lower guide rail, and bristles for scraping the rotating blades are provided on the filter plate.

[0011] Preferably, the bottom surfaces of the inner walls at both ends of the upper guide rail are provided with protrusions.

[0012] Preferably, a motor is further included, and a reciprocating screw rod for driving the transmission shaft to reciprocate is arranged on the output shaft of the motor.

[0013] Preferably, treatment tanks are provided at both ends of the film stripping chamber, and the tank walls of the treatment tanks are higher than the liquid level in the film stripping chamber.

[0014] Preferably, a scraper for crushing the residual film layer is provided in the processing tank.

[0015] As a preference, both ends of the scraper are provided with slave bevel gears, and both ends of the reciprocating screw are fixedly provided with master bevel gears meshing with the slave bevel gears for transmission.

[0016] In the above technical scheme, the utility model provides a fully automatic circuit board development, etching and film stripping continuous production equipment, which has the following beneficial effects: the circuit board is completely immersed in the film stripping liquid, and then the transmission shaft is driven to make the filter plate reciprocate in the film stripping chamber to attach the residual film layer floating in the film stripping liquid, and at the same time, the liquid driving force of the film stripping liquid drives the rotating blades to rotate, thereby further salvaging the residual film layer, and the rotation of the rotating blades plays a role in defoaming, and drives the flow rate of the film stripping liquid to become faster, further accelerating the reaction between the circuit board and the filter plate. The used filter plate can be switched to a horizontal state for cleaning, which is convenient for next use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1 An overall three-dimensional schematic diagram provided for an embodiment of the utility model;

[0019] Figure 2 A schematic diagram of the rotating blades and filter plates provided in the embodiment of the utility model;

[0020] Figure 3 A schematic diagram of the positions of the upper guide rail, the protrusions, and the rack provided in an embodiment of the utility model;

[0021] Figure 4A schematic diagram of a treatment tank and a scraper provided in an embodiment of the utility model;

[0022] Figure 5 Schematic diagram of the motor, reciprocating screw, main bevel gear and slave bevel gear provided in the embodiment of the utility model.

[0023] Description of reference numerals:

[0024] 1. Film removal chamber; 2. Processing tank; 21. Scraper; 22. Slave bevel gear; 23. Main bevel gear; 3. Filter plate; 31. Rotating blade; 32. Gear; 33. Transmission shaft; 34. Bristles; 4. Guide rail; 41. Upper guide rail; 42. Bump; 43. Lower guide rail; 5. Motor; 51. Reciprocating screw. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0026] like Figure 1-5 As shown, a fully automatic circuit board developing, etching and film stripping continuous production equipment comprises a film stripping chamber 1;

[0027] The filter plate 3 is provided with a transmission shaft 33 and is driven by the transmission shaft 33 to reciprocate in the film stripping chamber 1. The filter plate 3 is rotatably provided with a rotating blade 31 for attaching the residual film layer, and the end of the rotating shaft of the rotating blade 31 extends out of the filter plate 3;

[0028] The guide rails 4 are arranged on both sides of the inner wall of the film stripping chamber 1 , and the guide rails 4 are slidably matched with the transmission shaft 33 to switch the filter plate 3 between the vertical state and the horizontal state.

[0029] Specifically, a spray mechanism is provided above the film stripping chamber 1 to spray the circuit board, and the circuit board is completely immersed in the film stripping liquid, and the circuit board is kept at a distance from the liquid surface. The above-mentioned electronic components are common knowledge to those skilled in the art and will not be elaborated here.

[0030] Furthermore, in the default state, the filter plate 3 is in a vertical state, and the filter plate 3 is always located above the circuit board to avoid scratching the circuit board, and is immersed in the film stripping liquid. The driving shaft 33 makes the filter plate 3 reciprocate in the film stripping chamber 1 to attach the residual film layer floating in the film stripping liquid. At the same time, the liquid driving force of the film stripping liquid drives the rotating blades 31 to rotate, thereby further salvaging the residual film layer, and the rotation of the rotating blades 31 plays a role in defoaming. When the filter plate 3 moves to the two ends of the guide rail 4, under the sliding cooperation of the guide rail 4 and the transmission shaft 33, the filter plate 3 is flipped ninety degrees with the transmission shaft 33 as the axis, and switched to a horizontal state. At this time, the filter plate 3 will no longer be attached, and the filter plate 3 can be cleaned for the next use.

[0031] In the above technology, the circuit board is completely immersed in the film stripping liquid, and then the transmission shaft 33 is driven to make the filter plate 3 reciprocate in the film stripping chamber 1 to attach the residual film layer floating in the film stripping liquid. At the same time, the liquid driving force of the film stripping liquid drives the rotating blade 31 to rotate, thereby further salvaging the residual film layer. The rotation of the rotating blade 31 plays a role in defoaming, and drives the flow rate of the film stripping liquid to become faster, further accelerating the reaction between the filter plate 3 and the circuit board. The used filter plate 3 can be switched to a horizontal state for cleaning, which is convenient for next use.

[0032] As an embodiment further provided by the present invention, the guide rail 4 includes an upper guide rail 41 and a lower guide rail 43 , and both ends of the lower guide rail 43 are inclined and extend to the guide rails of the upper guide rail 41 .

[0033] Specifically, the transmission shaft 33 can be rotated on the filter plate 3. When the filter plate 3 is in a vertical state, the upper guide rail 41 is used to accommodate the transmission shaft 33, and the lower guide rail 43 is used to accommodate the shaft end of the rotating blade 31; when the filter plate 3 is in a horizontal state, the transmission shaft 33 and the shaft end of the rotating blade 31 are equally horizontal, and the upper guide rail 41 accommodates the transmission shaft 33 and the shaft end at the same time, and allows the transmission shaft 33 and the shaft end to slide; when the shaft end slides to the two ends of the lower guide rail 43, the guide rail is used to guide the shaft end to move obliquely upward, and finally slide into the upper guide rail 41, at which time the filter plate 3 is flipped from a vertical state to a horizontal state.

[0034] As another embodiment further provided by the present invention, gears 32 are provided at both ends of the rotating shaft of the rotating blade 31, a rack meshing with the gear 32 is provided on the bottom surface of the inner wall of the lower guide rail 43, and bristles 34 for scraping the rotating blade 31 are provided on the filter plate 3.

[0035] Specifically, when the filter plate 3 is in a vertical state, the end of the rotating shaft of the rotating blade 31 is located in the lower guide rail 43. During the movement of the transmission shaft 33, the filter plate 3 will be driven to move as a whole, and the end of the rotating shaft will move horizontally along the lower guide rail 43. At this time, the gear 32 is engaged with the rack, so that the rotating blade 31 rotates, thereby scooping up the film layer floating in the defilming liquid. When the rotating blade 31 rotates to the bristles 34, the scooped impurities are attached to the bristles 34.

[0036] As another embodiment further provided by the present invention, the bottom surfaces of the inner walls at both ends of the upper guide rail 41 are provided with protrusions 42 .

[0037] Specifically, both ends of the upper guide rail 41 are located outside the film stripping chamber 1. When the rotating shaft 33 moves to both ends of the upper guide rail 41, the rotating shaft 33 continues to move and contacts the protrusion 42. The protrusion 42 squeezes the rotating shaft 33 to drive the filter plate 3 to shake slightly as a whole, thereby achieving a certain cleaning effect.

[0038] As another embodiment further provided by the present invention, the present invention further comprises a motor 5 , on the output shaft of which a reciprocating screw rod 51 for driving the transmission shaft 33 to reciprocate is disposed.

[0039] Specifically, the motor 5 is started, and the motor output shaft drives the reciprocating screw 51 to rotate, thereby driving the transmission shaft 33 to reciprocate along the reciprocating screw 51 . At this time, the transmission shaft 33 slides from one end of the upper guide rail 41 to the other end.

[0040] As another embodiment further provided by the present invention, treatment tanks 2 are provided at both ends of the film stripping chamber 1 , and the tank wall of the treatment tank 2 is higher than the liquid level in the film stripping chamber 1 .

[0041] Specifically, when the filter plate 3 moves to the top of the processing tank 2, it switches to a horizontal state. The projection 42 squeezes the transmission shaft 33, causing the filter plate 3 to vibrate slightly, thereby shaking the film layer off into the processing tank 2 for processing and recycling. Since a scraper 21 is rotatably provided in the processing tank 2, the scraper 21 further crushes the film layer to prevent the film layer from clogging the filter port.

[0042] As another embodiment further provided by the present invention, both ends of the scraper 21 are provided with slave bevel gears 22 , and both ends of the reciprocating screw rod 51 are fixedly provided with main bevel gears 23 meshing with the slave bevel gears 22 .

[0043] Specifically, the reciprocating screw 51 rotates to drive the main bevel gear 23 to rotate, and the slave bevel gear 22 rotates through meshing transmission, thereby driving the scraper 21 to rotate and crush and cut the film layer shaken off the filter plate 3 to prevent the film layer from clogging the filter port.

[0044] Working principle: A spray mechanism is arranged above the film stripping chamber 1 to spray the circuit board, and the circuit board is completely immersed in the film stripping liquid, and the circuit board is kept at a distance from the liquid surface. The motor 5 is started, and the motor output shaft drives the reciprocating screw 51 to rotate, thereby driving the transmission shaft 33 to move back and forth along the reciprocating screw 51, so that the filter plate 3 moves in the film stripping chamber 1, and the residual film layer floating in the film stripping liquid is attached. The end of the rotating shaft of the rotating blade 31 is located in the lower guide rail 43. During the movement of the transmission shaft 33, the filter plate 3 is driven to move as a whole, and the end of the rotating shaft is moved horizontally along the lower guide rail 43. At this time, the gear 32 is meshed with the rack, so that the rotating blade 31 rotates, thereby picking up the film layer floating in the film stripping liquid. When the rotating blade 31 rotates to the bristles 34, the picked up impurities are attached to the bristles 34. When the end of the rotating shaft slides to the two ends of the lower guide rail 43, the guide rail is used to guide the end of the sliding rotating shaft to move obliquely upward and finally slide into the upper guide rail 41. At this time, the filter plate 3 is flipped from a vertical state to a horizontal state. The upper guide rail 41 simultaneously accommodates the transmission shaft 33 and the end of the rotating shaft, and provides the transmission shaft 33 and the end of the rotating shaft for sliding. When the rotating shaft 33 moves to the two ends of the upper guide rail 41, the rotating shaft 33 continues to move and contacts the protrusion 42. The squeezing of the rotating shaft 33 by the protrusion 42 drives the filter plate 3 to shake slightly as a whole, thereby shaking off the film layer into the processing tank 2 for processing and recycling. The reciprocating screw 51 rotates to drive the main bevel gear 23 to rotate, and the slave bevel gear 22 rotates through the meshing transmission, thereby driving the scraper 21 to rotate and crush and cut the film layer shaken off the filter plate 3 to prevent the film layer from clogging the filter port.

[0045] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A fully automatic circuit board development, etching and film stripping continuous production equipment, characterized in that: include: Film stripping chamber (1); A filter plate (3) is provided with a transmission shaft (33) and is driven by the transmission shaft (33) to reciprocate in the film stripping chamber (1). A rotating blade (31) for attaching a residual film layer is rotatably provided on the filter plate (3), and the end of the rotating shaft of the rotating blade (31) extends out of the filter plate (3); The guide rails (4) are arranged on both sides of the inner wall of the film stripping chamber (1), and the guide rails (4) are slidably matched with the transmission shaft (33) to switch the filter plate (3) between the vertical and horizontal states.

2. The fully automatic circuit board development, etching and film stripping continuous production equipment according to claim 1, characterized in that: The transmission shaft (33) is rotatably arranged relative to the filter plate (3); the guide rail (4) comprises an upper guide rail (41) and a lower guide rail (43); both ends of the lower guide rail (43) are inclined and extend toward the guide slide rails of the upper guide rail (41).

3. The fully automatic circuit board development, etching and film stripping continuous production equipment according to claim 2, characterized in that: Gears (32) are provided at both ends of the rotating shaft of the rotating blade (31), a rack meshing with the gear (32) is provided on the inner wall bottom surface of the lower guide rail (43), and bristles (34) for scraping the rotating blade (31) are provided on the filter plate (3).

4. The fully automatic circuit board developing, etching and film stripping continuous production equipment according to claim 2, characterized in that: The bottom surfaces of the inner walls at both ends of the upper guide rail (41) are provided with protrusions (42).

5. The fully automatic circuit board developing, etching and film stripping continuous production equipment according to claim 1, characterized in that: It also comprises a motor (5), wherein a reciprocating screw rod (51) for driving the transmission shaft (33) to reciprocate is arranged on the output shaft of the motor (5).

6. The fully automatic circuit board developing, etching and film stripping continuous production equipment according to claim 5, characterized in that: Treatment grooves (2) are provided at both ends of the film stripping chamber (1), and the groove wall of the treatment groove (2) is higher than the liquid level in the film stripping chamber (1).

7. The fully automatic circuit board developing, etching and film stripping continuous production equipment according to claim 6, characterized in that: A scraper (21) for crushing residual film layers is rotatably arranged in the processing tank (2).

8. The fully automatic circuit board developing, etching and film stripping continuous production equipment according to claim 7, characterized in that: Both ends of the scraper (21) are provided with slave bevel gears (22), and both ends of the reciprocating screw rod (51) are fixedly provided with master bevel gears (23) meshing with the slave bevel gears (22) for transmission.

Images