CN118250914A

CN118250914A - Automatic film-removing cleaning equipment for PCB

Info

Publication number: CN118250914A
Application number: CN202410674407.6A
Authority: CN
Inventors: 邵文庆
Original assignee: Changzhou Hongshengda Electronic Equipment Co ltd
Current assignee: Changzhou Hongshengda Electronic Equipment Co ltd
Priority date: 2024-05-29
Filing date: 2024-05-29
Publication date: 2024-06-25
Anticipated expiration: 2044-05-29
Also published as: CN118250914B

Abstract

The invention is applicable to the technical field of PCB (printed circuit board) cleaning, and provides automatic film-removing cleaning equipment for a PCB, which comprises a cleaning tank; guide pieces are fixedly arranged on the inner walls of the cleaning Chi Liangxiang pairs; the guide piece comprises a wave-shaped guide plate fixedly arranged on the inner wall of the cleaning tank; a transverse plate is fixed on the side surface of the wave-shaped guide plate; a chute is arranged on one side surface of the cleaning tank; a sliding piece is arranged in the sliding groove in a sliding way; the sliding piece comprises a U-shaped plate which is arranged in the sliding groove in a sliding way; two fixing plates which are arranged in parallel are fixed on the bottom surface of the U-shaped plate; a plurality of guide holes are uniformly formed in the side face of the fixed plate; the clamping piece is arranged in the guide hole in a sliding manner, the device is used for cleaning through a spray cleaning mode, the problem that the line of the PCB circuit board cannot be cleaned is avoided, in the cleaning process, different pressing pieces intermittently clamp the PCB circuit board, so that the spray head can flush the contact part of the pressing piece and the PCB circuit board, the comprehensive flushing of the PCB circuit board is realized, and the quality of the PCB circuit board is improved.

Description

Automatic film-removing cleaning equipment for PCB

Technical Field

The invention relates to the technical field of PCB (printed circuit board) cleaning, in particular to automatic film-removing cleaning equipment for a PCB.

Background

The PCB, called a printed circuit board, is an important electronic component, is a support for electronic components, is a carrier for electrical interconnection of electronic components, and is called a "printed" circuit board because it is fabricated by electronic printing.

When the PCB wet film board is etched, film removed and solder resist removed, the PCB circuit board is required to be stacked in the basin for pickling, and then the PCB circuit board is subjected to machine production.

Disclosure of Invention

Aiming at the defects of the prior art, the invention aims to provide the automatic cleaning equipment for the film withdrawal of the PCB, which is used for cleaning by a spray cleaning mode, so that the problem that the lines of the PCB cannot be cleaned is avoided.

In order to achieve the above purpose, the present invention provides the following technical solutions:

A PCB circuit board film-removing automatic cleaning device comprises a cleaning tank; guide pieces are fixedly arranged on the inner walls of the cleaning Chi Liangxiang; the guide piece comprises a wave-shaped guide plate fixedly arranged on the inner wall of the cleaning tank; the wave crests and the wave troughs on the two wave guide plates are staggered; a transverse plate is fixed on the side surface of the wave-shaped guide plate; a chute is formed in one side surface of the cleaning tank; a sliding piece is arranged in the sliding groove in a sliding way; the sliding piece comprises a U-shaped plate which is arranged in the sliding groove in a sliding way; two fixing plates which are arranged in parallel are fixed on the bottom surface of the U-shaped plate; a plurality of guide holes are uniformly formed in the side face of the fixed plate; a clamping piece is arranged in the guide hole in a sliding manner; the clamping piece comprises a guide rod which is arranged in the guide hole in a sliding manner; one end of the guide rod is fixed with a guide ball matched with the wave guide plate, and the other end of the guide rod is fixed with a sleeve; a sliding rod is arranged in the sleeve in a sliding manner; one end of the sliding rod is fixed with a rubber plate, and an extrusion spring is fixedly connected between the other end of the sliding rod and the sleeve; a connecting spring sleeved on the corresponding guide rod is fixedly connected between the guide ball and the fixed plate; and a PCB circuit board is clamped between the two opposite rubber plates.

The invention is further provided with: a controller is fixedly arranged on the cleaning pool; the side surface of the cleaning tank is fixedly provided with a driving motor which is electrically connected with the output end of the controller; the output end of the driving motor is fixed with a screw rod; a sliding rod is fixed between the inner walls of the sliding grooves; the side surface of the U-shaped plate is fixed with a fixed block; screw holes in running fit with screw threads are formed in the side faces of the fixed blocks; and the side surface of the U-shaped plate is provided with a sliding hole which is in sliding fit with the sliding rod.

The invention is further provided with: a limiting groove is formed in the inner wall of the guide hole; a limit rail which is in sliding fit with the limit groove is fixed on the peripheral side surface of the guide rod; the inner wall of the sleeve is provided with a mounting groove; and a limiting block which is in sliding fit with the mounting groove is fixed on the peripheral side surface of the sliding rod.

The invention is further provided with: a through groove is formed in the side face of the transverse plate; two opposite side surfaces of the cleaning tank are provided with avoidance grooves, and L-shaped plates are fixed below the avoidance grooves on the side surfaces of the cleaning tank; the side surface of the L-shaped plate is fixedly provided with a pressing piece; the pressing piece comprises an electric push rod fixedly arranged on the side face of the L-shaped plate; the two electric push rods are electrically connected in series; the output end of the controller is electrically connected with the electric push rod; the telescopic end of the electric push rod is fixedly provided with a pressing plate which is in sliding fit with the avoidance groove and the through groove; curved surface guide grooves matched with the wave-shaped guide plates are formed in the side faces of the pressing plates.

The invention is further provided with: the inner bottom surface of the cleaning tank is fixedly communicated with a waste liquid tank; curved surface guide plates are symmetrically fixed on the inner bottom surface of the cleaning tank at two sides of the waste liquid tank; a mixing cavity is formed between the curved surface guide plate and the cleaning tank; a supporting plate is fixed between the two curved surface guide plates; and a plurality of flow guide ports are uniformly formed on the surface of the supporting plate.

The invention is further provided with: the other two opposite inner wall side surfaces of the cleaning tank are provided with process grooves; a servo motor which is electrically connected with the controller is fixedly arranged on the bottom surface in the process tank; the output end of the servo motor is fixedly provided with a bidirectional screw rod which is rotatably arranged on the inner wall of the process tank; two positioning pieces which rotate with the threads of the bidirectional screw are symmetrically arranged in the process groove in a sliding way.

The invention is further provided with: supporting plates are symmetrically fixed between two adjacent diversion openings on the surface of the supporting plate; a first connecting rod is fixed between the two opposite supporting plates; a first supporting ball is rotatably arranged on the first connecting rod; the positioning piece comprises a sliding plate; the two ends of the sliding plate are fixedly provided with moving blocks which are arranged in the process groove in a sliding manner; the side surface of the moving block is provided with a threaded hole in threaded rotation fit with the bidirectional screw; a plurality of U-shaped seats are uniformly fixed on the side surface of the sliding plate; a second connecting rod is fixed between the inner walls of the U-shaped seat; and a second supporting ball is rotatably arranged on the second connecting rod.

The invention is further provided with: fixing frames are fixed on the side surfaces of the two fixing plates on the sliding piece; a rotating shaft is arranged between the inner walls of the fixing frames in a penetrating and rotating way; a plurality of stirring plates are uniformly arranged on the rotating shaft; one end of the rotating shaft is fixed with a gear; toothed plates meshed with corresponding gears are symmetrically fixed on two sides of the inner wall of the cleaning tank.

The invention is further provided with: the surface of the U-shaped plate is fixed with a mounting plate; the surface of the mounting plate is fixedly provided with a liquid pump which is electrically connected with the output end of the controller; the input end of the liquid pump is connected with a liquid pump pipe, and the output end of the liquid pump is fixed with a three-way pipe; the surface of the U-shaped plate is positioned above the corresponding fixed plate, and is fixedly provided with a transfusion tube with two ends being sealed; the infusion tube is communicated with a liquid inlet tube; the two liquid inlet pipes are connected with the three-way pipe through hoses; the side face of the periphery of the infusion tube is uniformly communicated with the spray head downwards at a certain inclination angle.

The invention is further provided with: the right side surface of the fixed plate is fixed with a plugboard, and the left side surface of the fixed plate is fixed with a plug frame; mounting holes are formed in the side surfaces of the plugboard and the plug frame; the inserting plate on the fixing plate is in inserting fit with the inserting frame on the adjacent fixing plate, and the inserting plate is fixedly connected with the inserting frame through a fastening bolt.

The invention has the advantages that:

According to the invention, the PCB is vertically arranged between the two fixed plates, the sliding parts drive the clamping parts of each group to slide along the wave-shaped guide plates in the sliding process, and the clamping parts are matched with the connecting springs, so that a plurality of groups of opposite clamping parts are pressed on the side surfaces of the PCB, and the single PCB is cleaned in a spray cleaning mode, so that the problem that the lines of the PCB cannot be cleaned is avoided; in the cleaning process, different clamping pieces intermittently clamp the PCB, so that the spray head can flush the contact part clamped by the clamping pieces and the PCB, the lateral surface of the PCB is flushed omnidirectionally, and the quality of the PCB is improved.

According to the invention, the distance between the two positioning pieces is adjusted according to the actual thickness of the PCB, so that the PCB slides on the corresponding first supporting balls and the second supporting balls, each group of the first supporting balls plays a supporting role on the sliding PCB, and the opposite second supporting balls play a guiding and limiting role on the sliding PCB, so that the stability of the PCB in the sliding cleaning process is improved, and the PCB is prevented from falling accidentally in the sliding process, and the normal production is influenced.

According to the invention, the PCB circuit board drives the stirring plate on the rotating shaft to periodically rotate positively and negatively through the meshing cooperation of the gear and the toothed plate in the reciprocating sliding process of the sliding part, so that the cleaning liquid in the mixing cavity is sufficiently stirred, the cleaning effect is improved, and the production efficiency is further improved.

Drawings

Fig. 1 is a schematic structural diagram of an automatic cleaning device for film stripping of a PCB circuit board according to the present invention.

Fig. 2 is a schematic diagram of the structure of the present invention from the front view of fig. 1.

Fig. 3 is an enlarged schematic view of area a of fig. 2 in accordance with the present invention.

FIG. 4 is a schematic view of the structure of the cleaning basin, guide and hold-down assembly of the present invention.

Fig. 5 is an enlarged view of region B of fig. 4 in accordance with the present invention.

FIG. 6 is a schematic view of the structure of the washing tank of the present invention.

Fig. 7 is a schematic view of the structure of the cleaning tank in the rear view of the cleaning tank.

Fig. 8 is a schematic structural view of the sliding member of the present invention.

Fig. 9 is a schematic structural view of a clamping member according to the present invention.

Fig. 10 is a schematic structural view of the guide bar of the present invention.

Fig. 11 is a schematic structural view of the guide of the present invention.

Fig. 12 is a schematic structural view of the pressing member of the present invention.

Fig. 13 is a schematic structural view of a positioning member according to the present invention.

Fig. 14 is an enlarged view of region C of fig. 13 in accordance with the present invention.

Fig. 15 is a schematic structural view of the fixing plate of the present invention.

Fig. 16 is a schematic structural view of the guide, slider and clip assembly of the present invention.

Fig. 17 is an enlarged view of region D of fig. 16 in accordance with the present invention.

Fig. 18 is a schematic structural view of the slider and fixed plate assembly of the present invention.

In the figure: 1. a cleaning pool; 2. a guide member; 3. a wave guide plate; 4. a cross plate; 5. a chute; 6. a slider; 7. a U-shaped plate; 8. a fixing plate; 9. a guide hole; 10. a clamping member; 11. a guide rod; 12. a guide ball; 13. a sleeve; 14. a slide bar; 15. a rubber plate; 16. extruding a spring; 17. a PCB circuit board; 18. a controller; 19. a driving motor; 20. a screw rod; 21. a slide bar; 22. a fixed block; 23. a screw hole; 24. a slide hole; 25. a limit groove; 26. a limit rail; 27. a mounting groove; 28. a through groove; 29. an avoidance groove; 30. an L-shaped plate; 31. a pressing member; 32. an electric push rod; 33. a pressing plate; 34. curved surface guide groove; 35. a waste liquid tank; 36. curved surface deflector; 37. a mixing chamber; 38. a support plate; 39. a diversion port; 40. a process tank; 41. a servo motor; 42. a bidirectional screw; 43. a positioning piece; 44. a supporting plate; 45. a first connecting rod; 46. a first support ball; 47. a slide plate; 48. a moving block; 49. a threaded hole; 50. a U-shaped seat; 51. a second connecting rod; 52. a second support ball; 53. a fixing frame; 54. a rotating shaft; 55. a stirring plate; 56. a gear; 57. a toothed plate; 58. a mounting plate; 59. a liquid pump; 60. a liquid suction pipe; 61. a three-way pipe; 62. an infusion tube; 63. a liquid inlet pipe; 64. a spray head; 65. inserting plate; 66. a plug frame; 67. and (5) mounting holes.

Detailed Description

It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The application will be described in detail below with reference to the drawings in connection with embodiments.

It is noted that all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs unless otherwise indicated.

In the present invention, unless otherwise indicated, the terms "upper" and "lower" are used generally with respect to the directions shown in the drawings, or with respect to the vertical, vertical or gravitational directions; also, for ease of understanding and description, "left, right" is generally directed to the left, right as shown in the drawings; "inner and outer" refer to inner and outer relative to the outline of the components themselves, but the above-described orientation terms are not intended to limit the present invention.

Referring to fig. 1-18, the present invention provides the following technical solutions:

The PCB circuit board film-removing automatic cleaning equipment comprises a cleaning tank 1; guide pieces 2 are fixedly arranged on the two opposite inner walls of the cleaning tank 1; the guide piece 2 comprises a wave guide plate 3 fixedly arranged on the inner wall of the cleaning tank 1; the wave crests and wave troughs on the two wave guide plates 3 are staggered; a transverse plate 4 is fixed on the side surface of the wave guide plate 3; a chute 5 is arranged on one side surface of the cleaning tank 1; a sliding piece 6 is arranged in the sliding groove 5 in a sliding way; the slide 6 comprises a U-shaped plate 7 slidingly arranged in the chute 5; two fixing plates 8 which are arranged in parallel are fixed on the bottom surface of the U-shaped plate 7; a plurality of guide holes 9 are uniformly formed in the side face of the fixed plate 8; a clamping piece 10 is arranged in the guide hole 9 in a sliding way; the clamping member 10 includes a guide rod 11 slidably disposed in the guide hole 9; one end of the guide rod 11 is fixed with a guide ball 12 matched with the wave guide plate 3, and the other end is fixed with a sleeve 13; a sliding rod 14 is arranged in the sleeve 13 in a sliding manner; a rubber plate 15 is fixed at one end of the sliding rod 14, and an extrusion spring 16 is fixedly connected between the other end of the sliding rod and the sleeve 13; a connecting spring sleeved on the corresponding guide rod 11 is fixedly connected between the guide ball 12 and the fixed plate 8; a PCB circuit board 17 is sandwiched between the opposite rubber plates 15.

The first working principle of this embodiment: by vertically placing the PCB 17 between the two fixed plates 8, the sliding piece 6 drives each group of clamping pieces 10 to slide along the wave-shaped guide plate 3 in the sliding process, and the clamping pieces 10 are matched with the connecting springs, so that a plurality of groups of opposite clamping pieces 10 are pressed on the side surface of the PCB 17, and the single PCB 17 is cleaned in a spray cleaning mode, so that the problem that the lines of the PCB 17 cannot be cleaned is avoided; in the cleaning process, the PCB circuit board 17 is intermittently clamped by different clamping pieces 10, so that the contact part clamped by the clamping pieces 10 and the PCB circuit board 17 can be washed and flushed, the comprehensive flushing of the PCB circuit board 17 is realized, and the quality of the PCB circuit board 17 is improved.

Referring to fig. 1-18, the second embodiment is modified from the first embodiment in that a controller 18 is fixedly installed on the cleaning tank 1; a driving motor 19 which is electrically connected with the output end of the controller 18 is fixedly arranged on the side surface of the cleaning tank 1; the output end of the driving motor 19 is fixed with a screw rod 20; a sliding rod 21 is fixed between the inner walls of the sliding grooves 5; the side surface of the U-shaped plate 7 is fixed with a fixed block 22; screw holes 23 in threaded running fit with the screw rods 20 are formed in the side faces of the fixed blocks 22; the side surface of the U-shaped plate 7 is provided with a slide hole 24 which is in sliding fit with the slide bar 21; the inner wall of the guide hole 9 is provided with a limit groove 25; a limit rail 26 which is in sliding fit with the limit groove 25 is fixed on the side surface of the periphery of the guide rod 11; the inner wall of the sleeve 13 is provided with a mounting groove 27; a limiting block which is in sliding fit with the mounting groove 27 is fixed on the peripheral side surface of the sliding rod 14; the lateral surface of the transverse plate 4 is provided with a through groove 28; the two opposite side surfaces of the cleaning tank 1 are provided with avoidance grooves 29, and L-shaped plates 30 are fixed below the avoidance grooves 29 on the side surfaces; the side surface of the L-shaped plate 30 is fixedly provided with a pressing piece 31; the pressing piece 31 comprises an electric push rod 32 fixedly arranged on the side surface of the L-shaped plate 30; the two electric pushrods 32 are electrically connected in series; the output end of the controller 18 is electrically connected with the electric push rod 32; the telescopic end of the electric push rod 32 is fixed with a pressing plate 33 which is in sliding fit with the avoidance groove 29 and the through groove 28; the side surface of the pressing plate 33 is provided with a curved surface guide groove 34 matched with the wave guide plate 3; the inner bottom surface of the cleaning tank 1 is fixedly communicated with a waste liquid tank 35; curved surface guide plates 36 are symmetrically fixed on the inner bottom surface of the cleaning tank 1 at two sides of the waste liquid tank 35; a mixing cavity 37 is formed between the curved surface guide plate 36 and the cleaning tank 1; a supporting plate 38 is fixed between the two curved-surface guide plates 36; a plurality of flow guide ports 39 are uniformly formed on the surface of the supporting plate 38.

The second working principle of this embodiment: referring to fig. 12 of the drawings, the curved guide slot 34 is located at a corner of the platen 33; in the initial state, the sliding piece 6 is placed between the two transverse plates 4, meanwhile, the pressing plate 33 is accommodated in the through groove 28, under the elastic force of the corresponding connecting spring, the opposite clamping pieces 10 are driven to move away from each other, space is provided for placing the PCB circuit board 17, the pressing spring 16 is always in a compressed state, the PCB circuit board 17 is placed between the two fixed plates 8, the pressing plate 33 is driven to slide out along the corresponding through groove 28 by controlling and starting the two electric push rods 32 until the curved surface guide groove 34 is connected with the wave guide plate 3 to form a smooth curved surface, at the moment, the side surfaces of the pressing plate 33 are coplanar with the wave crest of the wave guide plate 3, the groups of guide balls 12 are synchronously pressed in the sliding process of the pressing plate 33, then the corresponding guide rods 11 are driven to move towards the PCB circuit board 17 until the rubber plate 15 is attached to the side surfaces of the PCB circuit board 17, the guide rods 11 continue to move, the pressing spring 16 is continuously compressed until the side surfaces of the pressing plate 33 are coplanar with the wave crest of the wave guide plate 3, and at the moment, the two sides of the PCB circuit board 17 are clamped.

The peaks and valleys of the waveform guide plates 3 on two sides are staggered, the control start drive motor 19 drives the screw rod 20 to rotate, thereby driving the sliding piece 6 to communicate the clamped PCB circuit board 17 to slide, each group of guide balls 12 are driven to slide along the waveform guide plates 3 in the sliding process of the sliding piece 6, the guide balls 12 sliding to the peaks of the waveform guide plates 3 are compressed on the PCB circuit board 17, the guide balls 12 sliding to the troughs of the waveform guide plates 3 are separated from the PCB circuit board 17 by the corresponding rubber plates 15, the guide balls 12 close to the two sides of the peaks of the waveform guide plates 3 are also compressed on the PCB circuit board 17 by the corresponding rubber plates 15, and the compression degree of the corresponding compression springs 16 is reduced compared with that of the guide balls 12 at the positions of the peaks, so that in the sliding process of the sliding piece 6, the dynamic processes of attaching, compressing, further compressing and separating with the sides of the PCB circuit board 17 are realized, the different clamping pieces 10 intermittently clamp the PCB circuit board 17, the motor 15 is controlled to be separated from the PCB circuit board 17, the positive and negative rotating parts of the motor are controlled to periodically clamp the PCB circuit board 17, the quality of the PCB circuit board 17 is periodically flushed, and the quality of the PCB circuit board 17 is periodically flushed is guaranteed by the periodic clamping the PCB 17, and the quality of the PCB 17 is periodically flushed by the positive and the PCB 17 is guaranteed, and the quality is periodically improved, and the quality of the PCB 17 is periodically washed by the PCB 17 is flushed by the driving the clamping the PCB 17.

Referring to fig. 1-18, the third embodiment is modified based on the second embodiment, specifically, the other two opposite inner wall sides of the cleaning tank 1 are provided with process grooves 40; a servo motor 41 which is electrically connected with the controller 18 is fixedly arranged on the inner bottom surface of the process tank 40; the output end of the servo motor 41 is fixedly provided with a bidirectional screw rod 42 which is rotatably arranged on the inner wall of the process tank 40; two positioning pieces 43 which rotate with the threads of the bidirectional screw rod 42 are symmetrically and slidably arranged in the process groove 40; supporting plates 44 are symmetrically fixed between two adjacent guide ports 39 on the surface of the supporting plate 38; a first connecting rod 45 is fixed between the two opposite supporting plates 44; a first supporting ball 46 is rotatably arranged on the first connecting rod 45; the positioning member 43 includes a slide plate 47; the two ends of the sliding plate 47 are fixed with a moving block 48 which is arranged in the process groove 40 in a sliding way; a threaded hole 49 in threaded rotation fit with the bidirectional screw rod 42 is formed in the side face of the moving block 48; a plurality of U-shaped seats 50 are uniformly fixed on the side surface of the sliding plate 47; a second connecting rod 51 is fixed between the inner walls of the U-shaped seat 50; the second connecting rod 51 is rotatably provided with a second supporting ball 52.

The third working principle of the embodiment: according to the actual thickness of the PCB 17, the servo motor 41 is controlled to be started, so that the bidirectional screw rod 42 is driven to rotate, the two positioning pieces 43 are driven to synchronously move, the distance between the two positioning pieces 43 is adjusted, the PCB 17 can slide between the corresponding second supporting balls 52 freely according to the distance, meanwhile, the PCB 17 can slide on the corresponding first supporting balls 46 freely, each group of the first supporting balls 46 plays a supporting role on the sliding PCB 17, the corresponding second supporting balls 52 play a guiding and limiting role on the sliding PCB 17, the stability of the PCB 17 in the sliding cleaning process is improved, the PCB 17 is prevented from falling accidentally in the sliding process, and the normal production is affected.

Referring to fig. 1-18, the fourth embodiment is modified based on the third embodiment, specifically, fixing frames 53 are fixed on the side surfaces of two fixing plates 8 on the sliding member 6; a rotating shaft 54 is arranged between the inner walls of the fixing frames 53 in a penetrating and rotating way; a plurality of stirring plates 55 are uniformly arranged on the rotating shaft 54; one end of the rotating shaft 54 is fixed with a gear 56; toothed plates 57 meshed with the corresponding gears 56 are symmetrically fixed on two sides of the inner wall of the cleaning tank 1; the surface of the U-shaped plate 7 is fixed with a mounting plate 58; the surface of the mounting plate 58 is fixedly provided with a liquid pump 59 which is electrically connected with the output end of the controller 18; the input end of the liquid pump 59 is connected with a liquid pump pipe 60, and the output end of the liquid pump 59 is fixed with a three-way pipe 61; the surface of the U-shaped plate 7 is positioned above the corresponding fixed plate 8 and is fixedly provided with a transfusion tube 62 with two ends being provided with seals; the infusion tube 62 is communicated with a liquid inlet tube 63; the two liquid inlet pipes 63 are connected with the three-way pipe 61 through hoses; the side surface of the periphery of the infusion tube 62 is uniformly communicated with a spray head 64 downwards at a certain inclination angle.

The fourth working principle of the embodiment is as follows: in the reciprocating sliding process of the PCB 17 along with the sliding piece 6, the gear 56 is meshed with the toothed plate 57 to drive the stirring plate 55 on the rotating shaft 54 to periodically rotate positively and negatively, so that the cleaning liquid in the mixing cavity 37 is sufficiently stirred, the cleaning effect is improved, and the production efficiency is further improved.

By controlling the liquid suction pump 59 to start, the cleaning liquid in the mixing cavity 37 is sequentially pumped into the liquid conveying pipe 62 through the liquid suction pipe 60 and the three-way pipe 61 and the hose, and the side surface of the PCB 17 is washed through each group of obliquely arranged spray heads 64, so that the problem that the lines of the PCB 17 cannot be cleaned is avoided; the washed waste liquid flows into the waste liquid tank 35 through the curved-surface baffle 36 and is collected.

Referring to fig. 1-18, the fifth embodiment is modified on the basis of the fourth embodiment, specifically, a plugboard 65 is fixed on the right side of the fixing plate 8, and a plug frame 66 is fixed on the left side of the fixing plate; mounting holes 67 are formed in the side surfaces of the plugboard 65 and the plug frame 66; the plugboard 65 on one fixing plate 8 is in plug-in fit with the plug-in frame 66 on the adjacent fixing plate 8, and the plugboard 65 and the plug-in frame 66 are fixedly connected through fastening bolts.

The fifth working principle of the embodiment: through the plug board 65 on one side surface of one group of the fixed boards 8 and the plug frame 66 on one side surface of the adjacent fixed board 8 are in plug connection and matched, the extension of the sliding piece 6 is completed, synchronous separation and cleaning of a plurality of groups of PCB circuit boards 17 can be realized, the friction between the PCB circuit boards 17 is avoided, the quality of the PCB circuit boards 17 is further improved, and the working efficiency is further improved.

It will be apparent that the embodiments described above are merely some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and the claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the application described herein may be implemented in sequences other than those illustrated or otherwise described herein.

The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above examples, and all technical solutions belonging to the concept of the present invention belong to the protection scope of the present invention. It should be noted that modifications and adaptations to the present invention may occur to one skilled in the art without departing from the principles of the present invention and are intended to be within the scope of the present invention.

Claims

1. A PCB circuit board film-removing automatic cleaning device comprises a cleaning tank (1); the method is characterized in that:

Guide pieces (2) are fixedly arranged on the two opposite inner walls of the cleaning tank (1); the guide piece (2) comprises a waveform guide plate (3) fixedly arranged on the inner wall of the cleaning tank (1); a transverse plate (4) is fixed on the side surface of the wave-shaped guide plate (3); the wave crests and wave troughs on the two wave guide plates (3) are staggered;

a chute (5) is formed in one side surface of the cleaning tank (1); a sliding piece (6) is arranged in the sliding groove (5) in a sliding way; the sliding piece (6) comprises a U-shaped plate (7) which is arranged in the sliding groove (5) in a sliding way; a sliding rod (21) is fixed between the inner walls of the sliding grooves (5); a sliding hole (24) which is in sliding fit with the sliding rod (21) is formed in the side surface of the U-shaped plate (7); two fixing plates (8) which are arranged in parallel are fixed on the bottom surface of the U-shaped plate (7); a plurality of guide holes (9) are uniformly formed in the side face of the fixed plate (8); a clamping piece (10) is slidably arranged in the guide hole (9);

The clamping piece (10) comprises a guide rod (11) which is arranged in the guide hole (9) in a sliding way; one end of the guide rod (11) is fixed with a guide ball (12) matched with the wave guide plate (3), and the other end of the guide rod is fixed with a sleeve (13); a sliding rod (14) is arranged in the sleeve (13) in a sliding manner; one end of the sliding rod (14) is fixed with a rubber plate (15), and an extrusion spring (16) is fixedly connected between the other end of the sliding rod and the sleeve (13); a connecting spring sleeved on the corresponding guide rod (11) is fixedly connected between the guide ball (12) and the fixed plate (8); a PCB (17) is clamped between the two opposite rubber plates (15).

2. The automatic film-removing cleaning device for a PCB (printed Circuit Board) according to claim 1, wherein the automatic film-removing cleaning device comprises the following components: a controller (18) is fixedly arranged on the cleaning pool (1); a driving motor (19) which is electrically connected with the output end of the controller (18) is fixedly arranged on the side surface of the cleaning tank (1); a screw rod (20) is fixed at the output end of the driving motor (19);

A fixed block (22) is fixed on the side surface of the U-shaped plate (7); screw holes (23) in threaded rotation fit with the screw rods (20) are formed in the side faces of the fixed blocks (22).

3. The automatic film-removing cleaning device for a PCB (printed Circuit Board) according to claim 2, wherein the automatic film-removing cleaning device comprises the following components: a limit groove (25) is formed in the inner wall of the guide hole (9); a limit rail (26) which is in sliding fit with the limit groove (25) is fixed on the peripheral side surface of the guide rod (11); the inner wall of the sleeve (13) is provided with a mounting groove (27); limiting blocks which are in sliding fit with the mounting grooves (27) are fixed on the peripheral side surfaces of the sliding rods (14).

4. A PCB circuit board film-removing automatic cleaning device according to claim 3, wherein: a through groove (28) is formed in the side face of the transverse plate (4); two opposite side surfaces of the cleaning tank (1) are provided with avoidance grooves (29), and L-shaped plates (30) are fixed below the avoidance grooves (29) on the side surfaces; the side surface of the L-shaped plate (30) is fixedly provided with a pressing piece (31);

The pressing piece (31) comprises an electric push rod (32) fixedly arranged on the side surface of the L-shaped plate (30); the two electric push rods (32) are electrically connected in series; the output end of the controller (18) is electrically connected with the electric push rod (32); a pressing plate (33) which is in sliding fit with the avoidance groove (29) and the through groove (28) is fixed at the telescopic end of the electric push rod (32); curved surface guide grooves (34) matched with the wave-shaped guide plates (3) are formed in the side faces of the pressing plates (33).

5. The automatic film-removing cleaning device for a PCB of claim 4, wherein: the inner bottom surface of the cleaning tank (1) is fixedly communicated with a waste liquid tank (35); curved surface guide plates (36) are symmetrically fixed on the two sides of the waste liquid tank (35) at the inner bottom surface of the cleaning tank (1); a mixing cavity (37) is formed between the curved surface guide plate (36) and the cleaning tank (1);

A supporting plate (38) is fixed between the two curved surface guide plates (36); a plurality of flow guide ports (39) are uniformly formed on the surface of the supporting plate (38).

6. The automatic film-removing cleaning device for a PCB of claim 5, wherein: the other two opposite inner wall side surfaces of the cleaning tank (1) are provided with process grooves (40); a servo motor (41) which is electrically connected with the controller (18) is fixedly arranged on the inner bottom surface of the process groove (40); the output end of the servo motor (41) is fixedly provided with a bidirectional screw rod (42) which is rotatably arranged on the inner wall of the process tank (40); two positioning pieces (43) which rotate with the threads of the bidirectional screw rod (42) are symmetrically arranged in the process groove (40) in a sliding mode.

7. The automatic film-removing cleaning device for a PCB of claim 6, wherein: a supporting plate (44) is symmetrically fixed between two adjacent guide openings (39) on the surface of the supporting plate (38); a first connecting rod (45) is fixed between the two opposite supporting plates (44); a first supporting ball (46) is rotatably arranged on the first connecting rod (45);

The positioning piece (43) comprises a sliding plate (47); both ends of the sliding plate (47) are fixedly provided with moving blocks (48) which are arranged in the process groove (40) in a sliding way; a threaded hole (49) in threaded rotation fit with the bidirectional screw rod (42) is formed in the side face of the moving block (48); a plurality of U-shaped seats (50) are uniformly fixed on the side surface of the sliding plate (47); a second connecting rod (51) is fixed between the inner walls of the U-shaped seat (50); and a second supporting ball (52) is rotatably arranged on the second connecting rod (51).

8. The automatic film-removing cleaning device for a PCB of claim 7, wherein: the side surfaces of the two fixing plates (8) on the sliding piece (6) are respectively fixed with a fixing frame (53); a rotating shaft (54) is arranged between the inner walls of the fixing frames (53) in a penetrating and rotating way; a plurality of stirring plates (55) are uniformly arranged on the rotating shaft (54); one end of the rotating shaft (54) is fixed with a gear (56); toothed plates (57) meshed with corresponding gears (56) are symmetrically fixed on two sides of the inner wall of the cleaning tank (1).

9. The automatic film-removing cleaning device for a PCB of claim 8, wherein: a mounting plate (58) is fixed on the surface of the U-shaped plate (7); the surface of the mounting plate (58) is fixedly provided with a liquid pump (59) which is electrically connected with the output end of the controller (18); the input end of the liquid pump (59) is connected with a liquid pump pipe (60), and the output end of the liquid pump is fixed with a three-way pipe (61); the surface of the U-shaped plate (7) is positioned above the corresponding fixed plate (8) and is fixedly provided with a transfusion tube (62) with two ends being sealed; a liquid inlet pipe (63) is communicated with the infusion pipe (62); the two liquid inlet pipes (63) are connected with the three-way pipe (61) through hoses; the peripheral side face of the infusion tube (62) is uniformly communicated with a spray head (64) downwards at a certain inclination angle.

10. The automatic film-removing cleaning device for a PCB circuit board of claim 9, wherein: the right side surface of the fixed plate (8) is fixed with a plugboard (65), and the left side surface of the fixed plate is fixed with a plugboard frame (66); mounting holes (67) are formed in the side surfaces of the inserting plate (65) and the inserting frame (66); the inserting plate (65) on one fixing plate (8) is in inserting fit with the inserting frame (66) on the adjacent fixing plate (8), and the inserting plate (65) is fixedly connected with the inserting frame (66) through fastening bolts.