Brushing device for multi-layer PCB production

Abstract

The utility model provides a brushing device for producing a multi-layer PCB (Printed Circuit Board). The method belongs to the field of multi-layer PCB production. According to the technical key points, the device comprises a brushing mechanism, the brushing mechanism comprises a supporting seat, a belt conveyor is fixedly mounted at the top of the supporting seat, a supporting frame fixedly connected with the supporting seat is arranged above the belt conveyor, and a storage barrel is fixedly connected to the top of the supporting frame; the bottom of the material storage barrel is fixedly connected with a communicated rubber corrugated pipe, the bottom of the rubber corrugated pipe is fixedly connected with a communicated flow dividing pipe, the bottom of the supporting frame is detachably connected with a roller frame, the flow dividing pipe penetrates through the roller frame, the interior of the roller frame is rotationally connected with a brushing roller, one side of the roller frame is fixedly connected with a motor, and the motor is fixedly connected with the supporting frame. The output end of the motor is fixedly connected with the brushing roller; the utility model aims to provide a brushing device for producing a multi-layer PCB (Printed Circuit Board). The probability of waste of green oil is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to multilayer PCB board production field, concretely is a kind of brushing device for multilayer PCB board production. BACKGROUND

[0002] PCB multilayer board refers to multilayer circuit board used in electrical products, and more wiring boards of single-sided board or double-sided board are used on multilayer board. A printed circuit board with one double-sided inner layer and two single-sided outer layers or two double-sided inner layers and two single-sided outer layers is connected to each other through positioning system and insulating adhesive material, and the printed circuit board becomes four-layer or six-layer printed circuit board, which is also called multilayer printed circuit board.

[0003] In the process of multilayer PCB board production, the processing of solder resist layer is carried out. The solder resist layer refers to the part of the printed circuit board that needs to be coated with green oil. In fact, the solder resist layer uses negative film output, so after the shape of the solder resist layer is mapped onto the board, the copper skin is exposed instead of being coated with green solder resist. Currently, the green oil is mainly coated on the PCB board by rolling. However, due to the difference in size of different PCB boards, the green oil in the part of the rolling brush is not utilized, resulting in waste of green oil. UTILITY MODEL CONTENT

[0004] The utility model aims to provide a kind of brushing device for multilayer PCB board production to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A kind of brushing device for multilayer PCB board production, comprising

[0007] Brushing mechanism, the brushing mechanism includes support seat, the top of the support seat is fixedly installed with belt conveyor, the upper side of the belt conveyor is provided with the support frame fixedly connected with the support seat, the top of the support frame is fixedly connected with storage barrel, the bottom of the storage barrel is fixedly connected with the rubber bellows in communication, the bottom of the rubber bellows is fixedly connected with the shunt pipe in communication, the bottom of the support frame is detachably connected with roller stand, the shunt pipe penetrates the roller stand, the inside of the roller stand is rotatably connected with brushing roller, one side of the roller stand is fixedly connected with motor, and the output end of the motor is fixedly connected with the brushing roller.

[0008] Collecting mechanism, the collecting mechanism includes fixed plate fixedly connected with the top of the support seat, two groups of the fixed plate are rotatably connected with second bidirectional screw rod, the outer side of the second bidirectional screw rod is symmetrically screw-connected with scraping box, and two groups of the scraping box are in contact with the outer wall of the brushing roller.

[0009] As a further scheme of the utility model: the top of the belt conveyor is equipped with guide plates symmetrically, a first bidirectional screw is screw connected in the inside of the two groups of guide plates, a supporting plate is rotationally connected to the outside of the first bidirectional screw symmetrically, and the two groups of supporting plates are fixedly connected with the supporting seat.

[0010] As a further scheme of the utility model: the side, away from the brushing roller, of the two groups of material scraping boxes is fixedly connected with guide blocks, a guide rod is slidably penetrated in the inside of the two groups of guide blocks, and the guide rod is fixedly connected with the supporting frame.

[0011] As a further scheme of the utility model: the opposite sides of the two groups of material scraping boxes are fixedly connected with communicating hoses, a collecting groove is fixedly connected to the bottom of the supporting seat, and the two groups of hoses are in communication with the collecting groove.

[0012] As a further scheme of the utility model: a pump is fixedly connected to the top side of the supporting frame, a liquid suction pipe is fixedly connected to the input end of the pump and extends into the inside of the collecting groove, and a liquid discharge pipe is fixedly connected between the output end of the pump and the storage barrel and is in communication.

[0013] As a further scheme of the utility model: an adjusting screw is rotationally connected to the top of the roller frame symmetrically, and the two groups of adjusting screws are screw connected with the supporting frame.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] After the above structure is adopted, the mutual cooperation of the material scraping box, the fixed plate and the second bidirectional screw enables the two sides of the material scraping box to move relatively or oppositely when the second bidirectional screw rotates, so that the distance between the two groups of material scraping boxes can be adjusted to be consistent with the width of the PCB to be brushed, and the subsequent rotation of the brushing roller enables the two sides of the material scraping box to scrape the green oil, which exceeds the width of the PCB to be brushed, on the surface of the brushing roller to the inside of the material scraping box, thereby reducing the probability of green oil waste. BRIEF DESCRIPTION OF DRAWINGS

[0016] The utility model will be further described in detail in connection with the embodiments in the drawings, but does not constitute any limitation on the utility model.

[0017] Figure 1 It is a structure schematic view of a brushing device for multilayer PCB production.

[0018] Figure 2 It is a structure schematic view of a brushing device for multilayer PCB production. Figure 1 A part structure schematic view of a brushing device for multilayer PCB production.

[0019] Figure 3It is another perspective view of the structure of a coating device for multilayer PCB production.

[0020] Figure 4 It is another perspective view of the structure of a coating device for multilayer PCB production. Figure 3

[0021] In the figure: 1, coating mechanism; 101, support seat; 102, belt conveyor; 103, support plate; 104, first bidirectional screw; 105, guide plate; 106, support frame; 107, storage barrel; 108, adjusting screw; 109, roller frame; 110, coating roller; 111, motor; 112, rubber bellows; 113, shunt pipe; 2, collection mechanism; 201, fixed plate; 202, second bidirectional screw; 203, scraping box; 204, guide rod; 205, guide block; 206, hose; 207, collection tank; 208, pump; 209, liquid suction pipe; 210, liquid discharge pipe. DETAILED DESCRIPTION

[0022] The technical solution of the patent will be further described in detail in combination with the specific embodiments.

[0023] Please refer to Figures 1-4 A coating device for multilayer PCB production, comprising a coating mechanism 1, the coating mechanism 1 comprising a support seat 101, the top of the support seat 101 being fixedly installed with a belt conveyor 102, the belt conveyor 102 being capable of conveying the PCB to be coated when starting to work. The top of the belt conveyor 102 is symmetrically provided with guide plates 105, the interiors of the two groups of guide plates 105 being threadedly connected with first bidirectional screws 104, the rotation of the first bidirectional screws 104 being capable of driving the two side guide plates 105 to move towards or away from each other, so as to satisfy the centering guidance of PCBs of different widths. The outer sides of the first bidirectional screws 104 are symmetrically rotatably connected with support plates 103, the two groups of support plates 103 being fixedly connected with the support seat 101, the support plates 103 being capable of supporting the first bidirectional screws 104.

[0024] ​The upper portion of the belt conveyor 102 is provided with a support frame 106 fixedly connected with the support base 101, the top of the support frame 106 is fixedly connected with a storage barrel 107, the storage barrel 107 is arranged for accommodating the green oil. The bottom of the storage barrel 107 is fixedly connected with a rubber bellows 112 in communication, the bottom of the rubber bellows 112 is fixedly connected with a shunt pipe 113 in communication, the rubber bellows 112 and the shunt pipe 113 are arranged for guiding the green oil inside the storage barrel 107. The bottom of the support frame 106 is detachably connected with a roller frame 109, the shunt pipe 113 penetrates through the roller frame 109, the inside of the roller frame 109 is rotatably connected with a coating roller 110, the coating roller 110 is arranged to catch the green oil discharged from the shunt pipe 113, so that the coating roller 110 can coat the PCB board conveyed by the belt conveyor 102 with the green oil when rotating.

[0025] The side of the roller frame 109 is fixedly connected with a motor 111, the output end of the motor 111 is fixedly connected with the brushing roller 110, and the motor 111 is arranged to drive the brushing roller 110 to rotate when starting to work. The top of the roller frame 109 is symmetrically rotatably connected with an adjusting screw 108, and the two groups of adjusting screws 108 are in threaded connection with the support frame 106. The adjusting screw 108 is arranged to drive the roller frame 109 and the brushing roller 110 to move up and down when rotating, so that the spacing between the brushing roller 110 and the top of the belt conveyor 102 is adjusted, thereby meeting the brushing of PCB boards of different thicknesses.

[0026] As a further scheme of the present application: in the present embodiment, the belt conveyor 102 is a prior art, which will not be described here.

[0027] In use, the first bidirectional screw rod 104 is rotated, so that the first bidirectional screw rod 104 can drive the two groups of guide plates 105 to move relative to each other when the first bidirectional screw rod 104 is rotated, until the interval between the two groups of guide plates 105 is adjusted to be consistent with the width of the PCB to be painted, then the second bidirectional screw rod 202 is rotated, so that the second bidirectional screw rod 202 can drive the two groups of scraping boxes 203 to move relative to or away from each other when the second bidirectional screw rod 202 is rotated, until the interval between the two groups of scraping boxes 203 is adjusted to be consistent with the width of the PCB to be painted, then green oil (i.e. liquid photoresist) is poured into the inside of the storage barrel 107, then the belt conveyor 102 and the motor 111 are started, then the PCB to be painted is placed on the top of the belt conveyor 102 and between the two groups of guide plates 105, so that the belt conveyor 102 can convey the PCB to be painted when it is started, and the green oil in the inside of the storage barrel 107 is guided to fall on the surface of the brushing roller 110 through the rubber bellow 112 and the shunt pipe 113, when the brushing roller 110 rotates, the two groups of scraping boxes 203 can scrape the green oil on the outer side of the brushing roller 110 beyond the width of the PCB to be painted and fall into the inside of the two groups of scraping boxes 203, then fall into the inside of the collecting groove 207 through the hose 206, when the PCB is conveyed to pass through the bottom of the brushing roller 110, the brushing roller 110 can brush a layer of green oil on the top of the PCB by continuously rotating, so as to realize the brushing of the green oil.

[0028] The above-mentioned embodiments are the preferred embodiments of the present application, which are used to facilitate the description of the present application and are not intended to limit the present application in any form. Any person skilled in the art can make partial changes or modifications to the equivalent embodiments within the scope of the technical features of the present application without departing from the technical features of the present application, and the changes or modifications still belong to the scope of the technical features of the present application.

Claims

1. A coating device for multilayer PCB production, characterized by, The application relates to a paint brushing mechanism (1) which comprises a support base (101), a belt conveyor (102) fixedly arranged on the top of the support base (101), a support frame (106) fixedly connected with the support base (101) above the belt conveyor (102), a storage barrel (107) fixedly connected with the top of the support frame (106), a rubber bellows (112) fixedly connected with the bottom of the storage barrel (107) and in communication, a shunt pipe (113) fixedly connected with the bottom of the rubber bellows (112) and in communication, a roller frame (109) detachably connected with the bottom of the support frame (106), the shunt pipe (113) penetrating through the roller frame (109), a paint brushing roller (110) rotatably connected in the roller frame (109), and a motor (111) fixedly connected with one side of the roller frame (109) and having an output end fixedly connected with the paint brushing roller (110). A collecting mechanism (2) which comprises fixed plates (201) fixedly connected with the top of the support base (101) in a symmetrical mode, second bidirectional screws (202) rotatably connected in the fixed plates (201), rubber scraping boxes (203) symmetrically and screwedly connected with the outer sides of the second bidirectional screws (202), and the rubber scraping boxes (203) being in contact with the outer walls of the paint brushing roller (110). The top of the belt conveyor (102) is symmetrically provided with guide plates (105), first bidirectional screws (104) screwedly connected in the guide plates (105), and support plates (103) symmetrically and rotatably connected with the outer sides of the first bidirectional screws (104) and fixedly connected with the support base (101).

2. The coating device for multilayer PCB production according to claim 1, characterized in that, The sides, away from the paint brushing roller (110), of the rubber scraping boxes (203) are fixedly connected with guide blocks (205), guide rods (204) slidingly penetrating through the guide blocks (205), and the guide rods (204) being fixedly connected with the support frame (106).

3. The coating device for multilayer PCB production according to claim 1, characterized in that, The opposite sides of the rubber scraping boxes (203) are fixedly connected with hoses (206) in communication, the bottom of the support base (101) is fixedly connected with a collecting groove (207), and the hoses (206) are in communication with the collecting groove (207).

4. The coating device for multilayer PCB production according to claim 1, characterized in that, The top of the support frame (106) is fixedly connected with a pump (208), the input end of the pump (208) is fixedly connected with a liquid suction pipe (209) extending into the collecting groove (207), and the output end of the pump (208) is fixedly connected with a liquid discharge pipe (210) in communication with the storage barrel (107).

5. The coating device for multilayer PCB production according to claim 4, characterized in that, The top of the roller frame (109) is symmetrically rotatably connected with adjusting screws (108), and the adjusting screws (108) are screwedly connected with the support frame (106).

6. The coating device for multilayer PCB production according to claim 1, characterized in that, ​

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