Spraying device of film stripping machine

Abstract

The utility model belongs to the technical field of spraying of film stripping machines, and particularly relates to a spraying device of a film stripping machine, which comprises a spraying box, a liquid storage box is mounted on the bottom side of the spraying box, a placing groove is formed in the rear wall of the spraying box, a guide hopper is placed in the placing groove, a filter plate is mounted on the inner wall of the guide hopper, and the filter plate is connected with the liquid storage box. Liquid inlets are formed in a bottom plate of the spraying box and a top plate of the liquid storage box, a plurality of sets of nozzles are installed on the bottom side of the water plate, a first water guide pipe is installed on the water plate, a water pump is installed on the side wall of the liquid storage box through a machine base, the water pump is connected with the first water guide pipe, and a film falls into a material guide hopper and is filtered through a filter plate, so that the film is formed. Pure solvent flows back into the liquid storage tank from the liquid inlet, recycling of the solvent is achieved, films and film residues are left in the guide hopper and collected in the guide hopper, the structure can collect the films and the film residues, the situation that the films, the film residues and the solvent are difficult to treat together is avoided, and the recovery rate of the films and the film residues is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of spraying of film stripping machines, in particular to a spraying device of a film stripping machine. Background Art

[0002] PCB, whose Chinese name is printed circuit board, also known as printed circuit board, is an important electronic component, a support for electronic components, and a carrier for electrical connections of electronic components. In the process of removing the dry film on the printed circuit board, a film stripping machine spray device is required.

[0003] A Chinese patent with publication number CN117979564A discloses a highly efficient film stripping device for circuit board production, including a feeding component, a mobile spraying component and an adjustment component. The feeding component is used to supply PCB boards, the mobile spraying component is used to spray film stripping liquid on the PCB boards while moving, and the adjustment component is used to detect the spraying image of the film stripping liquid on the PCB boards, and control the movement of the mobile spraying component according to the spraying image of the film stripping liquid on the PCB boards to fine-tune the spraying position of the mobile spraying component. The feeding component includes a frame, and the mobile spraying component includes a transverse drive component, a longitudinal drive component, a fixed seat and a mobile control component. The fixed seat is fixedly connected to the longitudinal drive component, and a plurality of nozzles for spraying the film stripping liquid are fixedly connected to the fixed seat. The present application detects and controls the spraying effect of the film stripping liquid spraying device to improve the stability of the film stripping effect.

[0004] The existing spray device cannot recover the film residue during the process of stripping the printed circuit board. The film residue flows into the environmental protection treatment pool together with the solvent, which increases the difficulty of treatment and leads to a poor recovery rate of the film residue. Therefore, a spray device for a film stripping machine is proposed to address the above problem. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art and solve the problems existing in the prior art, the utility model provides a spray device for a film stripping machine.

[0006] The technical solution adopted by the utility model to solve its technical problems is: a spray device of a film stripping machine described in the utility model comprises a spray box, a front plate of the spray box is installed with glass, a liquid storage tank is installed on the bottom side of the spray box, windows are provided on both sides of the spray box, a placement groove is provided on the rear wall of the spray box, a material guide hopper is placed in the placement groove, a handle is installed on the outer wall of the material guide hopper, a filter plate is installed on the inner wall of the material guide hopper, a liquid inlet is provided on the bottom plate of the spray box and the top plate of the liquid storage tank, a water plate is installed on the top plate of the spray box, a cavity is provided on the inner wall of the water plate, a plurality of groups of nozzles are installed on the bottom side of the water plate, the plurality of groups of nozzles are arranged in a rectangular array structure, and the water plate A first water guide pipe is installed on the top, and a water pump is installed on the side wall of the liquid storage tank through the machine base. The water pump is connected to the first water guide pipe, and the other end of the water pump is connected to the second water guide pipe, and the second water guide pipe is connected to the liquid storage tank. The water pump is connected to the water plate through the first water guide pipe, and the water pump is connected to the liquid storage tank through the second water guide pipe. The film falls into the guide hopper and is filtered through the filter plate. The pure solvent flows back to the liquid storage tank from the liquid inlet, realizing the recycling of the solvent, while the film and film residue remain in the guide hopper and are collected in the guide hopper. This structure can collect the film and film residue, avoid the difficulty of handling the film and film residue together with the solvent, and is beneficial to improving the recovery rate of the film and film residue.

[0007] Preferably, a conveyor is passed through between the windows, and the conveyor includes four groups of tripods, two groups of support frames are symmetrically installed on the four groups of tripods, multiple groups of rollers are rotatably installed between the support frames, printed circuit boards are placed on the rollers, gears are fixedly sleeved on one end of each group of rollers, multiple groups of gears are provided, and a transmission chain is commonly sleeved on the multiple groups of gears, a first motor is installed on the support frame through a machine base, and the output shaft of the first motor is connected to one of the rollers, a cleaning roller is rotatably installed on the inner wall of the spray box, and the cleaning roller is located above the support frame, and a material discharge trough is provided on the conveyor, and the material discharge trough is located at Directly below the cleaning roller, a plurality of groups of brushes are installed on the cleaning roller, and a second motor is installed on the rear plate of the spray box through a machine base, and the output shaft of the second motor is connected to the cleaning roller, and the printed circuit board is driven by the roller to move into the spray box, and the nozzle sprays the solvent evenly on the surface of the printed circuit board. The solvent softens the film on the surface of the printed circuit board, making it easy to remove. When the printed circuit board moves under the cleaning roller, the cleaning roller rotates to sweep and brush the film on the surface of the printed circuit board, and the film on the surface of the printed circuit board is removed, thereby achieving the shedding of the film, which is beneficial to improving the film stripping efficiency.

[0008] The utility model is beneficial in that:

[0009] 1. The utility model realizes the recycling of solvent by allowing the film to fall into the guide hopper and be filtered by the filter plate, and the pure solvent flows back into the liquid storage tank from the liquid inlet, while the film and film residue remain in the guide hopper and are collected by the guide hopper. This structure can collect the film and film residue, avoid the difficulty of handling the film and film residue together with the solvent, and is beneficial to improving the recovery rate of the film and film residue.

[0010] 2. The utility model drives the printed circuit board into the spray box through the roller, and the nozzle sprays the solvent evenly on the surface of the printed circuit board. The solvent softens the film on the surface of the printed circuit board, making it easy to remove. When the printed circuit board moves under the cleaning roller, the cleaning roller rotates to sweep the film on the surface of the printed circuit board, removes the film on the surface of the printed circuit board, realizes the shedding of the film, and is beneficial to improving the film stripping efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0012] Figure 1 It is a schematic diagram of a three-dimensional structure from a first-person perspective;

[0013] Figure 2 It is a schematic diagram of a three-dimensional structure in a side cross-section;

[0014] Figure 3 It is a schematic diagram of the three-dimensional structure of the guide hopper;

[0015] Figure 4 It is a schematic diagram of the rear-view stereoscopic structure.

[0016] In the figure: 1, spray box; 2, liquid storage tank; 3, window; 4, placement slot; 5, guide hopper; 6, handle; 7, filter plate; 8, liquid inlet; 9, water plate; 10, cavity; 11, nozzle; 12, first water pipe; 13, water pump; 14, second water pipe; 15, tripod; 16, support frame; 17, roller; 18, first motor; 19, cleaning roller; 20, second motor; 21, printed circuit board. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1-4As shown, a spray device for a film stripping machine comprises a spray box 1, a front plate of the spray box 1 is provided with glass, a liquid storage tank 2 is provided on the bottom side of the spray box 1, windows 3 are provided on both sides of the spray box 1, a placement slot 4 is provided on the rear wall of the spray box 1, a guide hopper 5 is provided in the placement slot 4, a handle 6 is provided on the outer wall of the guide hopper 5, a filter plate 7 is provided on the inner wall of the guide hopper 5, a liquid inlet 8 is provided on the bottom plate of the spray box 1 and the top plate of the liquid storage tank 2, and a The water plate 9 has a cavity 10 formed in the inner wall thereof, and a plurality of nozzles 11 are installed on the bottom side of the water plate 9, and the plurality of nozzles 11 are arranged in a rectangular array structure. A first water pipe 12 is installed on the water plate 9, and a water pump 13 is installed on the side wall of the liquid storage tank 2 through a machine base, and the water pump 13 is connected to the first water pipe 12, and the other end of the water pump 13 is connected to a second water pipe 14, and the second water pipe 14 is connected to the liquid storage tank 2, and the water pump 13 is connected to the water plate 9 through the first water pipe 12. Then, the water pump 13 is connected to the liquid storage tank 2 through the second water pipe 14, and a conveyor is passed through between the windows 3. The conveyor includes four groups of tripods 15, and two groups of support frames 16 are symmetrically installed on the four groups of tripods 15. Multiple groups of rollers 17 are rotatably installed between the support frames 16, and a printed circuit board 21 is placed on the rollers 17. A gear is fixedly sleeved on one end of each group of rollers 17. There are multiple groups of gears, and a transmission chain is commonly sleeved on the multiple groups of gears. A first motor 18 is installed on the support frame 16 through a machine base, and the output shaft of the first motor 18 is connected to one of the rollers 17. A cleaning roller 19 is rotatably installed on the inner wall of the spray box 1, and the cleaning roller 19 is located above the support frame 16. A material discharge trough is opened on the conveyor, and the material discharge trough is located directly below the cleaning roller 19. Multiple groups of brushes are installed on the cleaning roller 19. A second motor 20 is installed on the rear plate of the spray box 1 through a machine base, and the output shaft of the second motor 20 is connected to the cleaning roller 19;During operation, the existing spray device cannot recover the film residue during the process of stripping the printed circuit board 21. The film residue flows into the environmental protection treatment pool together with the solvent, which increases the difficulty of treatment and leads to a poor recovery rate of the film residue. By placing the printed circuit board 21 on the roller 17, the first motor 18 is operated to drive the roller 17 on it to rotate, the roller 17 drives the gear on it to rotate, the gear drives the transmission chain to rotate, and the transmission chain drives the remaining gears to rotate together, that is, all the gears rotate together and drive all the rollers 17 to rotate. The roller 17 rotates to realize the transportation of the printed circuit board 21, and the roller 17 drives the printed circuit board 21 to rotate. The printed circuit board 21 moves into the spray box 1. At this time, the water pump 13 operates, and the solvent in the liquid storage tank 2 is guided into the first water pipe 12, and then enters the water plate 9, and finally sprayed out from the nozzle 11. The nozzle 11 sprays the solvent evenly on the surface of the printed circuit board 21. The solvent softens the film on the surface of the printed circuit board 21, making it easy to remove. When the printed circuit board 21 moves below the cleaning roller 19, the second motor 20 operates to drive the cleaning roller 19 to rotate. The cleaning roller 19 sweeps the film on the surface of the printed circuit board 21 to remove the film on the surface of the printed circuit board 21, thereby achieving the shedding of the film.

[0019] Afterwards, the film falls into the guide hopper 5, is filtered by the filter plate 7, and the pure solvent flows back to the liquid storage tank 2 from the liquid inlet 8, thereby realizing the recycling of the solvent, while the film and film residue remain in the guide hopper 5 and are collected by the guide hopper 5. This structure can collect the film and film residue, avoid the difficulty of handling the film and film residue together with the solvent, and is conducive to improving the recovery rate of the film and film residue.

[0020] Working principle: the existing spray device cannot recycle the film residue during the process of stripping the printed circuit board 21. The film residue flows into the environmental protection treatment pool together with the solvent, which increases the difficulty of treatment and leads to a poor recovery rate of the film residue. By placing the printed circuit board 21 on the roller 17, the first motor 18 is operated to drive the roller 17 on it to rotate, the roller 17 drives the gear on it to rotate, the gear drives the transmission chain to rotate, and the transmission chain drives the remaining gears to rotate together, that is, all gears rotate together and drive all rollers 17 to rotate. The rotation of the roller 17 realizes the transportation of the printed circuit board 21. The roller 17 drives the printed circuit board 21 to move into the spray box 1. At this time, through the operation of the water pump 13, the solvent in the liquid storage tank 2 is guided into the first water pipe 12, and then into the water plate 9, and finally from the nozzle 11 is sprayed out, and the nozzle 11 sprays the solvent evenly on the surface of the printed circuit board 21. The solvent softens the film on the surface of the printed circuit board 21, making it easy to remove. When the printed circuit board 21 moves to the bottom of the cleaning roller 19, the second motor 20 is operated to drive the cleaning roller 19 to rotate. The cleaning roller 19 sweeps the film on the surface of the printed circuit board 21 to remove the film on the surface of the printed circuit board 21, thereby achieving the shedding of the film; then the film falls into the guide hopper 5, is filtered by the filter plate 7, and the pure solvent flows back to the liquid storage tank 2 from the liquid inlet 8, thereby achieving the recycling of the solvent, while the film and film residue remain in the guide hopper 5 and are collected in the guide hopper 5. This structure can collect the film and film residue, avoid the difficulty of handling the film and film residue together with the solvent, and is conducive to improving the recovery rate of the film and film residue.

[0021] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A spray device for a film stripping machine, characterized in that: The invention comprises a spray box (1), wherein a glass is installed on the front panel of the spray box (1), a liquid storage tank (2) is installed on the bottom side of the spray box (1), windows (3) are provided on both sides of the spray box (1), a placement groove (4) is provided on the rear wall of the spray box (1), a guide hopper (5) is placed in the placement groove (4), a handle (6) is installed on the outer wall of the guide hopper (5), a filter plate (7) is installed on the inner wall of the guide hopper (5), the bottom plate of the spray box (1) and the liquid storage tank ( 2) A liquid inlet (8) is provided on the top plate, a water plate (9) is installed on the top plate of the spray box (1), a cavity (10) is provided on the inner wall of the water plate (9), a plurality of groups of nozzles (11) are installed on the bottom side of the water plate (9), the plurality of groups of nozzles (11) are arranged in a rectangular array structure, a first water guide pipe (12) is installed on the water plate (9), a water pump (13) is installed on the side wall of the liquid storage box (2) through a machine base, and the water pump (13) is connected to the first water guide pipe (12).

2. A spray device for a film stripping machine according to claim 1, characterized in that: The other end of the water pump (13) is connected to a second water conduit (14), and the second water conduit (14) is connected to the liquid storage tank (2).

3. A spray device for a film stripping machine according to claim 1, characterized in that: The water pump (13) is connected to the water plate (9) via a first water conduit (12), and the water pump (13) is connected to the liquid storage tank (2) via a second water conduit (14).

4. The spray device of the film stripping machine according to claim 1, characterized in that: A conveyor runs through the windows (3), and the conveyor comprises four sets of foot frames (15), on which two sets of support frames (16) are symmetrically mounted.

5. A spray device for a film stripping machine according to claim 4, characterized in that: A plurality of groups of rollers (17) are rotatably mounted between the support frames (16), and printed circuit boards (21) are placed on the rollers (17).

6. A spray device for a film stripping machine according to claim 5, characterized in that: A gear is fixedly sleeved on one end of each group of rollers (17), multiple groups of gears are provided, and a transmission chain is sleeved on the multiple groups of gears.

7. A spray device for a film stripping machine according to claim 4, characterized in that: A first motor (18) is mounted on the support frame (16) via a machine base, and an output shaft of the first motor (18) is connected to one of the rollers (17).

8. The spray device of the film stripping machine according to claim 1, characterized in that: A cleaning roller (19) is rotatably mounted on the inner wall of the spray box (1), and the cleaning roller (19) is located above the support frame (16).

9. A spray device for a film stripping machine according to claim 4, characterized in that: A material discharge trough is provided on the conveyor and is located directly below the cleaning roller (19). A plurality of groups of brushes are mounted on the cleaning roller (19).

10. The spray device of the film stripping machine according to claim 1, characterized in that: A second motor (20) is mounted on the rear plate of the spray box (1) via a machine base, and an output shaft of the second motor (20) is connected to the cleaning roller (19).

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