Circuit board surface film stripping processing device

Abstract

The utility model provides a circuit board surface film stripping processing device which comprises a box body, the top of the box body is provided with a spraying mechanism used for film stripping, the middle of the inner side of the box body is provided with a conveying assembly used for placing a circuit board to be subjected to film stripping, and the top of the conveying assembly is provided with a fixing assembly used for fixing the circuit board. The multiple fixing assemblies are arranged at the two ends of the conveying assembly, the filtering assembly is arranged at the bottom of the inner side of the box body, and the conveying assembly and the fixing assemblies are arranged in the box body in a slightly inclined mode. Through clamping sliding of the connecting rods, the limiting rods and the assembling box, when circuit boards with different widths are placed on the conveying rods, the fixed side wheels can move according to the widths of the circuit boards, the device can fix the circuit boards with different widths conveniently for film stripping treatment, meanwhile, the circuit boards are clamped through the fixed top wheels and the fixed side wheels, and the circuit boards with different widths can be fixed conveniently. The circuit board can be ensured to stably move in the device for film stripping, and the situation that the film stripping effect is affected due to unstable contact between the circuit board and a film stripping solvent is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board processing, in particular to a device for removing film from the surface of a circuit board. Background Art

[0002] Circuit boards miniaturize and visualize circuits, playing an important role in the mass production of fixed circuits and optimizing the layout of electrical appliances. In the processing and production of circuit boards, a film removal operation needs to be performed on the circuit boards, and a circuit board film removal device is required.

[0003] When the traditional circuit board film removal device removes the film from the circuit board, the commonly used method is to spray the solvent above the circuit board to strip the exposed dry film that protects the copper surface on the circuit board surface with the solution, exposing the circuit pattern. However, during the film removal process of the circuit board by the film removal device, the film removal of the circuit board is relatively continuous, and a large amount of film removal solvent is required. After these solvents remove the film from the circuit board, they will flow away from the circuit board surface. At this time, the film removal solvent will be mixed with the film residues on the circuit board, making it inconvenient to reuse the film removal solvent.

[0004] In summary, there is a need for a device for removing film from the surface of a circuit board that facilitates the recovery of the film removal solvent. Summary of the Utility Model

[0005] In view of the deficiencies of the prior art, the utility model provides a device for removing film from the surface of a circuit board, which solves the problems mentioned in the background art.

[0006] To achieve the above objectives, the utility model is realized through the following technical solutions:

[0007] A device for removing film from the surface of a circuit board includes a box body. A spraying mechanism for film removal is provided at the top of the box body. A conveying component for placing the circuit board to be film removed is provided in the middle inside the box body. A fixing component for fixing the circuit board is provided at the top of the conveying component, and a plurality of fixing components are provided at both ends of the conveying component. A filtering component is provided at the bottom inside the box body. The conveying component and the fixing component are slightly inclined inside the box body. The filtering component includes a filter screen, a blanking plate, a material receiving box, a pushing frame, and a slag pushing plate. The filter screen is provided at the bottom inside the box body. Blanking plates are provided at both ends of the filter screen. The material receiving boxes are provided at the bottom of both ends outside the box body, and the material receiving boxes are correspondingly arranged with the blanking plates. A pushing frame is provided on the top surface of the filter screen, and a slag pushing plate is provided at the bottom end of the pushing frame. The bottom end of the slag pushing plate is attached to the top surface of the filter screen, and the slag pushing plate is slidably connected to the filter screen.

[0008] Furthermore, the filter screen is inclined inward, and the blanking plate has a concave structure.

[0009] Further, installation grooves are formed in the middle of the front side and the rear side of the box body. The pushing frame is engaged and slid with the installation grooves. Feeding ports are arranged at both ends of the box body. The material receiving box is located below the feeding ports. The feeding ports are located at the bottom of the feeding plate.

[0010] Further, the spraying mechanism includes a reagent storage tank, a solvent spray head, an adjusting motor and an adjusting rod. The reagent storage tank is arranged on the top surface of the box body. The solvent spray head is arranged at the top inside the box body. The solvent spray head is communicated with the reagent storage tank. The adjusting motor is arranged at the top inside the box body. The adjusting rod is arranged inside the adjusting motor. The adjusting rod is in threaded connection with the solvent spray head.

[0011] Further, the conveying assembly includes an installation box, a conveying motor and a conveying rod. The installation box is arranged in the middle inside the box body. The conveying motor is arranged inside the installation box. The installation box and the conveying motor are arranged in a mirror image inside the box body. One end of the conveying motor is provided with a conveying rod. The conveying rod is rotatably connected with the installation box. A plurality of conveying rods are arranged inside the installation box.

[0012] Further, the fixing assembly includes an assembly box, a connecting rod, a limiting rod, an assembly block, a fixing side wheel and a fixing top wheel. The connecting rod and the limiting rod are arranged inside the assembly box. The connecting rod and the limiting rod are engaged and slid with the assembly box. One end of the connecting rod and the limiting rod is provided with an assembly block. A fixing side wheel is arranged at the bottom of the assembly block. A fixing top wheel is arranged on the side surface of the assembly block. A return spring is arranged outside the connecting rod. The fixing side wheel is rotatably connected with the assembly block. An activity block is arranged on the side surface of the fixing top wheel. The fixing top wheel is rotatably connected with the activity block. An activity column is arranged at the top of the activity block. A support spring is arranged at the top end of the activity column. The activity block is engaged and slid with the assembly block. The conveying assembly and the fixing assembly are arranged in a slightly inclined manner inside the box body.

[0013] Further, a water removing assembly is arranged on the top of the box body. The water removing assembly includes an air pump, an air guide pipe and an air jet box. The air pump is arranged on the top surface of the box body. The air guide pipe is arranged at the bottom surface of the air pump. The bottom end of the air guide pipe is provided with the air jet box. The bottom end of the air jet box is arranged in an inclined manner.

[0014] The utility model provides a device for removing film from the surface of a circuit board. Compared with the prior art, the following beneficial effects are achieved:

[0015] Through the engagement and sliding of the connecting rod, the limiting rod and the assembly box, when circuit boards of different widths are placed on the conveying rod, the fixing side wheel can move according to the width of the circuit board, facilitating the fixing of circuit boards of different widths by the device for film removal treatment. At the same time, the clamping of the fixing top wheel and the fixing side wheel on the circuit board can ensure the stable movement and film removal of the circuit board inside the device, preventing the situation that the contact between the circuit board and the film removal solvent is unstable and affecting the film removal effect. Description of the Drawings

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] Figure 1 Shows a schematic structural diagram of the film stripping treatment device on the surface of the circuit board of the present invention;

[0018] Figure 2 Shows a schematic structural diagram of the front view section of the present invention;

[0019] Figure 3 Shows a schematic structural diagram of the fixing component of the present invention;

[0020] Figure 4 Shows a schematic structural diagram of the side view section of the present invention;

[0021] Figure 5 Shows a schematic structural diagram of the filtering component of the present invention;

[0022] Figure 6 Shows the Figure 3 Enlarged structural diagram at position A in the present invention;

[0023] As shown in the figure: 1. Box body; 11. Feeding port; 12. Installation groove; 13. Liquid discharge port; 2. Spraying mechanism; 21. Reagent storage tank; 22. Solvent spray head; 23. Adjusting motor; 24. Adjusting rod; 3. Conveying component; 31. Installation box; 32. Conveying motor; 33. Conveying rod; 4. Fixing component; 41. Assembly box; 42. Connecting rod; 421. Return spring; 43. Limiting rod; 44. Assembly block; 45. Fixed side wheel; 46. Fixed top wheel; 461. Movable block; 462. Movable column; 463. Support spring; 5. Dewatering component; 51. Air pump; 52. Air duct; 53. Jet box; 6. Filtering component; 61. Filter screen; 62. Feeding plate; 63. Collection box; 64. Pushing frame; 65. Slag pushing plate; 7. Circuit board. Detailed implementation manners

[0024] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be described clearly and completely. Apparently, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0025] Embodiment 1

[0026] To solve the technical problems in the background art, the following circuit board surface film stripping treatment device is provided:

[0027] Combined with Figures 1-5 As shown, the circuit board surface film stripping treatment device provided by the present utility model includes a box body 1. A spraying mechanism 2 for film stripping is provided at the top of the box body 1. A conveying component 3 for placing the circuit board 7 to be stripped of film is provided in the middle inside the box body 1. A fixing component 4 for fixing the circuit board 7 is provided at the top of the conveying component 3. A plurality of fixing components 4 are provided at both ends of the conveying component 3. A filtering component 6 is provided at the bottom inside the box body 1. The conveying component 3 and the fixing component 4 are slightly inclined inside the box body 1. The slightly inclined conveying component 3 and the fixing component 4 facilitate the stripping solvent on the surface of the circuit board 7 to slide above the filter screen 61. The filtering component 6 includes a filter screen 61, a blanking plate 62, a material receiving box 63, a pushing frame 64, and a slag pushing plate 65. The filter screen 61 is provided at the bottom inside the box body 1. Blanking plates 62 are provided at both ends of the filter screen 61. The material receiving box 63 is provided at the bottom of both ends outside the box body 1. The material receiving box 63 is correspondingly arranged with the blanking plate 62. A pushing frame 64 is provided on the top surface of the filter screen 61. A slag pushing plate 65 is provided at the bottom end of the pushing frame 64. The bottom end of the slag pushing plate 65 is attached to the top surface of the filter screen 61. The slag pushing plate 65 is slidably connected to the filter screen 61. The setting of the filter screen 61 can filter after the stripping solvent sprayed by the spraying mechanism 2 strips the film from the circuit board 7. The slag pushing plate 65 at the bottom end of the pushing frame 64 can push the film slag filtered out on the filter screen 61 from the filter screen 61 onto the blanking plate 62. The spraying mechanism 2 includes a solvent storage tank 21, a solvent spray head 22, an adjustment motor 23, and an adjustment rod 24. The solvent storage tank 21 is provided on the top surface of the box body 1. A solvent spray head 22 is provided at the top inside the box body 1. The solvent spray head 22 is communicated with the solvent storage tank 21. An adjustment motor 23 is provided at the top inside the box body 1. An adjustment rod 24 is provided inside the adjustment motor 23. The adjustment rod 24 is threadedly connected to the solvent spray head 22. The solvent spray head 22 threadedly connected to the adjustment rod 24 can move repeatedly inside the box body 1 to change the position of solvent spraying, facilitating uniform spraying of the stripping solvent on the circuit board 7 for film stripping treatment. A liquid discharge port 13 for discharging the solvent is provided at the bottom of the box body 1.

[0028] In this embodiment, the filter screen 61 is inclined inward, and the blanking plate 62 has a concave structure; the inwardly inclined filter screen 61 facilitates the centralized filtration of the solvent after film removal; mounting grooves 12 are formed in the middle of the front and rear sides of the box body 1, and the pushing frame 64 is engaged and slidable with the mounting grooves 12. Material discharge ports 11 are provided at both ends of the box body 1, and the material collection box 63 is located below the material discharge ports 11, and the material discharge ports 11 are located at the bottom of the blanking plate 62; the concave blanking plate 62 facilitates the film residues to fall into the material collection box 63 through the material discharge ports 11 after the slag pushing plate 65 pushes the film residues onto the blanking plate 62.

[0029] In this embodiment, a water removal assembly 5 is provided on the top of the box body 1. The water removal assembly 5 includes an air pump 51, an air guide pipe 52, and a jet box 53. The air pump 51 is provided on the top surface of the box body 1, the air guide pipe 52 is provided on the bottom surface of the air pump 51, the jet box 53 is provided at the bottom end of the air guide pipe 52, and the bottom end of the jet box 53 is inclined; after the circuit board 7 is sprayed with the solvent for film removal by the spraying mechanism 2, the inclined jet box 53 can blow the residual film removal solvent on the circuit board 7 by the ejected air, facilitating the film removal solvent to fall above the filter screen 61 for filtration;

[0030] When the film removal treatment device for the surface of the circuit board 7 is in use, first place the circuit board 7 on the conveying assembly 3 and fix it through the fixing assembly 4. When the circuit board 7 moves to the spraying mechanism 2, the solvent nozzle 22 evenly sprays the film removal solvent in the solvent storage tank 21 on the surface of the circuit board 7 for film removal treatment. Then, after the film is removed from the surface of the circuit board 7, the film removal solvent flows from the surface of the circuit board 7 onto the filter screen 61. During this process, when the circuit board 7 passes below the water removal assembly 5, the inclined jet box 53 can further blow the film removal solvent on the surface of the circuit board 7. Then, the film residues of the film removal solvent will be filtered by the filter screen 61, and the filtered film removal solvent will be stored at the bottom of the box body 1 for subsequent reuse. The slag pushing plate 65 moves on the filter screen 61 and can push the film residues filtered on the filter screen 61 onto the blanking plate 62, and then the film residues will fall into the slag collection box through the surface of the concave blanking plate 62 through the material discharge port 11 for collection and recycling;

[0031] By moving the slag pushing plate 65 on the inclined filter screen 61, after the film removal solvent performs film removal treatment on the circuit board 7, the filter screen 61 can filter the film residues of the film removal solvent and push them onto the blanking plate 62 and fall into the slag collection box for collection. Cooperating with the inclined jet box 53 to fully blow off the film removal solvent on the surface of the circuit board 7, thereby enabling the filter screen 61 to maintain a good film removal solvent filtration effect for a long time, reducing the solvent waste caused by the film removal solvent being carried out by the circuit board 7, and facilitating the reuse of the film removal solvent after filtration by re-introducing it into the solvent storage tank 21.

[0032] Embodiment Two

[0033] AsFigures 1-2 As shown in the figure, on the basis of the above embodiments, the following content is further given in this embodiment:

[0034] The conveying component 3 includes an installation box 31, a conveying motor 32 and a conveying rod 33. The installation box 31 is arranged in the middle inside the box body 1. A conveying motor 32 is arranged inside the installation box 31. The installation box 31 and the conveying motor 32 are arranged in a mirror image inside the box body 1. One end of the conveying motor 32 is provided with a conveying rod 33. The conveying rod 33 is rotatably connected to the installation box 31. A plurality of conveying rods 33 are arranged inside the installation box 31. The arrangement of the conveying rods 33 is used to control the movement of the circuit board 7 to be processed inside the box body 1;

[0035] In this embodiment, the fixing component 4 includes an assembly box 41, a connecting rod 42, a limiting rod 43, an assembly block 44, a fixed side wheel 45 and a fixed top wheel 46. A connecting rod 42 and a limiting rod 43 are arranged inside the assembly box 41. The connecting rod 42 and the limiting rod 43 are engaged and slidable with the assembly box 41. One end of the connecting rod 42 and the limiting rod 43 is provided with an assembly block 44. A fixed side wheel 45 is arranged at the bottom of the assembly block 44. A fixed top wheel 46 is arranged on the side of the assembly block 44. A return spring 421 is arranged outside the connecting rod 42. The fixed side wheel 45 is rotatably connected to the assembly block 44. A movable block 461 is arranged on the side of the fixed top wheel 46. The fixed top wheel 46 is rotatably connected to the movable block 461. A movable column 462 is arranged at the top of the movable block 461. A support spring 463 is arranged at the top end of the movable column 462. The movable block 461 is engaged and slidable with the assembly block 44; the movable block 461 on the side of the fixed top wheel 46, under the action of the support spring 463 on the top surface of the movable column 462, enables the fixed top wheel 46 to perform a certain degree of height adjustment according to the thickness of the circuit board 7, facilitating the fixed top wheel 46 to fixedly clamp the circuit board 7. The engagement and sliding of the connecting rod 42, the limiting rod 43 and the assembly box 41 enable the assembly block 44 to drive the fixed side wheel 45 to move horizontally;

[0036] Through the engagement and sliding of the connecting rod 42, the limiting rod 43 and the assembly box 41, when circuit boards 7 of different widths are placed on the conveying rods 33, the fixed side wheels 45 can move according to the width of the circuit boards 7, facilitating the device to fix circuit boards 7 of different widths for film removal treatment. At the same time, the clamping of the circuit board 7 by the fixed top wheel 46 and the fixed side wheel 45 can ensure the stable movement and film removal of the circuit board 7 inside the device, preventing the situation that the circuit board 7 is in unstable contact with the film removal solvent and affecting the film removal effect.

[0037] The working principle and usage process of the present utility model:

[0038] When in use:

[0039] First, place the circuit board 7 that needs to be demembraned on the conveying rod 33. Then, both sides of the circuit board 7 come into contact with the fixed side wheels 45. When the fixed side wheels 45 contact circuit boards 7 of different widths, the fixed side wheels 45 will push the assembly block 44, causing the connecting rod 42 and the limit rod 43 on the side of the assembly block 44 to engage and slide within the assembly box 41, thereby changing the spacing of the fixed side wheels 45.

[0040] Then, the fixed top wheels 46 on the side of the assembly block 44 will clamp and fix the circuit board 7 on both sides of the top surface of the circuit board 7, enabling the circuit board 7 to move stably on the conveying rod 33. In this way, the circuit board 7 can be stably contacted with the demembraning solvent for demembraning treatment.

[0041] During the processing:

[0042] The conveying motor 32 controls the conveying rod 33 to drive the circuit board 7 to move. When the circuit board 7 moves below the spraying mechanism 2, the solvent spray head 22 sprays the demembraning solvent in the solvent storage tank 21 onto the circuit board 7. Then, the adjustment motor 23 controls the solvent spray head 22 connected by threads to move horizontally inside the box body 1 through the adjustment rod 24. The moving solvent spray head 22 can evenly spray the demembraning solvent on the surface of the circuit board 7 for demembraning treatment. Then, the conveying rod 33 drives the circuit board 7 to move, and the moving surface of the circuit board 7 will be continuously sprayed with the demembraning solvent.

[0043] After the demembraning solvent on the surface of the circuit board 7 is demembraned, it will flow together with the slag onto the filter screen 61 along with the circuit board 7. When the circuit board 7 moves below the water removal assembly 5, the air jet box 53 sprays air onto the surface of the circuit board 7 through the air pump 51, enabling the demembraning solvent on the surface of the circuit board 7 to be fully separated from the circuit board 7, reducing the waste caused by the circuit board 7 carrying out the demembraning solvent.

[0044] After the demembraning solvent falls on the filter screen 61, the film slag will remain above the filter screen 61, and the filtered demembraning solvent will be stored at the bottom of the box body 1 and wait to be recycled into the solvent storage tank 21 for reuse. Then, push the push frame 64 to drive the slag pushing plate 65 to move on the filter screen 61. The moving slag pushing plate 65 can push the film slag on the filter screen 61 onto the blanking plate 62. After the film slag moves onto the concave blanking plate 62, it will fall into the material collection box 63 through the blanking port 11. In this way, it is convenient to recycle the film slag and maintain the filtering effect of the filter screen 61 on the demembraning solvent.

[0045] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the said element.

[0046] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A circuit board surface film stripping device, characterized in that: It comprises a box body, a spraying mechanism for film stripping is arranged on the top of the box body, a conveying assembly for placing the circuit board to be stripped is arranged in the middle of the inner side of the box body, a fixing assembly for fixing the circuit board is arranged on the top of the conveying assembly, and a plurality of fixing assemblies are arranged at both ends of the conveying assembly, a filtering assembly is arranged at the bottom of the inner side of the box body, and the conveying assembly and the fixing assembly are arranged obliquely inside the box body; The filter assembly includes a filter screen, a feed plate, a material receiving box, a push frame and a slag pushing plate. The filter screen is arranged at the bottom of the inner side of the box body, and feed plates are arranged at both ends of the filter screen. The material receiving box is arranged at the bottom of both ends of the outer side of the box body. The material receiving box and the feed plate are arranged correspondingly. A push frame is provided on the top surface of the filter screen, and a slag pushing plate is provided at the bottom end of the push frame. The bottom end of the slag pushing plate is in contact with the top surface of the filter screen, and the slag pushing plate is slidably connected to the filter screen.

2. The circuit board surface film stripping treatment device according to claim 1, characterized in that: The filter screen is arranged to be inclined inwards, and the blanking plate is in a concave structure.

3. The circuit board surface film stripping processing device according to claim 1, characterized in that: The front and rear middle parts of the box body are provided with mounting grooves, the push frame is engaged and slid with the mounting grooves, both ends of the box body are provided with discharge openings, the receiving box is located below the discharge openings, and the discharge openings are located at the bottom of the discharge plate.

4. The circuit board surface film stripping treatment device according to claim 1, characterized in that: The spraying mechanism includes a storage box, a solvent spray head, an adjustment motor and an adjustment rod. The storage box is arranged on the top surface of the box body, and a solvent spray head is arranged on the top inner side of the box body. The solvent spray head is communicated with the storage box. An adjustment motor is arranged on the top inner side of the box body, and an adjustment rod is arranged inside the adjustment motor. The adjustment rod is threadedly connected to the solvent spray head.

5. The circuit board surface film stripping treatment device according to claim 4, characterized in that: The conveying assembly includes an installation box, a conveying motor and a conveying rod. The installation box is arranged in the middle of the inner side of the box body. The conveying motor is arranged inside the installation box. The installation box and the conveying motor are arranged in a mirror image inside the box body. A conveying rod is arranged at one end of the conveying motor. The conveying rod is rotatably connected to the installation box. A plurality of conveying rods are arranged on the inner side of the installation box.

6. The circuit board surface film stripping treatment device according to claim 1, characterized in that: The fixing assembly comprises an assembling box, a connecting rod, a limiting rod, an assembling block, a fixed side wheel and a fixed top wheel, a connecting rod and a limiting rod are arranged inside the assembling box, the connecting rod, the limiting rod and the assembling box are engaged and slid, an assembling block is arranged at one end of the connecting rod and the limiting rod, a fixed side wheel is arranged at the bottom of the assembling block, a fixed top wheel is arranged at the side of the assembling block, a return spring is arranged at the outer side of the connecting rod, the fixed side wheel is rotatably connected to the assembling block, a movable block is arranged at the side of the fixed top wheel, the fixed top wheel is rotatably connected to the movable block, a movable column is arranged at the top of the movable column, a supporting spring is arranged at the top of the movable column, and the movable block is engaged and slidably engaged with the assembling block.

7. The circuit board surface film stripping treatment device according to claim 1, characterized in that: A dewatering assembly is provided on the top of the box body, and the dewatering assembly includes an air pump, an air guide pipe and an injection box. The air pump is provided on the top surface of the box body, an air guide pipe is provided on the bottom surface of the air pump, and an injection box is provided at the bottom end of the air guide pipe, and the bottom end of the injection box is inclined.

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