Circuit board protection glue coating and UV curing equipment

Abstract

The utility model relates to circuit board protection glue coating and UV curing equipment which comprises a conveying line, a glue coating assembly, a UV curing assembly and two visual assemblies. The gluing assembly comprises a gluing moving part and a gluing part, and the output end of the gluing moving part is connected with the gluing part arranged above the conveying line in a crossing mode and used for driving the gluing part to move above the conveying line; the UV curing assembly comprises a UV moving part and a UV lamp, and the output end of the UV moving part is connected with the UV lamp arranged above the conveying line in a crossing mode and used for driving the gluing part to move above the conveying line; wherein one visual assembly is connected with the output end of the gluing moving part or the gluing part, and the other visual assembly is connected with the output end of the UV moving part or the UV lamp. The gluing work and the UV curing work of the equipment effectively avoid parts, which do not need to be glued, on the circuit board, so that the gluing amount is reduced, meanwhile, the UV curing area is reduced, and the production cost is effectively reduced.

Description

Technical Field

[0001] This utility model relates to the field of circuit board technology, and in particular to a circuit board protective adhesive coating and UV curing equipment. Background Technology

[0002] Circuit board protective adhesive (or coating adhesive) is a silicone-modified resin used to protect circuit boards and related equipment from harsh environments, thereby improving and extending the product's service life and ensuring safety and reliability during use.

[0003] Currently, most methods involve screen printing a protective adhesive and then curing it. Specifically, a protective adhesive layer is coated on the circuit board, then exposed and developed to generate the desired pattern, and finally cured with UV light.

[0004] Since there are areas on the circuit board that do not require protective coating (such as the areas of some soldered parts), screen printing requires the removal of the unused protective coating through exposure and development. However, this process wastes a lot of protective coating and results in high production costs. Utility Model Content

[0005] In view of this, it is necessary to provide a circuit board protective adhesive coating and UV curing equipment to solve the problem that there are parts on the circuit board that do not need to be coated with protective adhesive, so screen printing wastes a lot of protective adhesive and has high production costs.

[0006] This utility model provides a circuit board protective adhesive coating and UV curing device, including a conveyor line, an adhesive coating assembly, a UV curing assembly, and two vision assemblies. The adhesive coating assembly includes an adhesive coating moving part and an adhesive coating part. The output end of the adhesive coating moving part is connected to the adhesive coating part, which is positioned above the conveyor line, to drive the adhesive coating part to move above the conveyor line. The UV curing assembly includes a UV moving part and a UV lamp. The output end of the UV moving part is connected to the UV lamp, which is positioned above the conveyor line, to drive the adhesive coating part to move above the conveyor line. One of the vision assemblies is connected to the output end of the adhesive coating moving part or the adhesive coating part, and the other vision assembly is connected to the output end of the UV moving part or the UV lamp.

[0007] Furthermore, the adhesive application moving component includes a first X-axis moving component, a first Y-axis moving component, and a Z-axis moving component. The output end of the first X-axis moving component is connected to the first Y-axis moving component to drive the first Y-axis moving component to move along a horizontal direction perpendicular to the conveyor line. The output end of the first Y-axis moving component is connected to the Z-axis moving component to drive the Z-axis moving component to move along a horizontal direction parallel to the conveyor line. The output end of the Z-axis moving component is connected to the adhesive application component to drive the adhesive application component to move along a vertical direction.

[0008] Furthermore, the adhesive application component includes a fixed frame, multiple adhesive outlets, multiple adhesive inlet pipes, and an adhesive supply pump. The fixed frame is connected to the output end of the adhesive application moving component. The multiple adhesive outlets are arranged parallel and vertically on the fixed frame. The bottom of each adhesive outlet has an outlet that communicates with its internal cavity. One end of each adhesive inlet pipe is connected to an adhesive outlet, and the other end of each adhesive inlet pipe is connected to the discharge end of the adhesive supply pump. The adhesive supply pump is fixedly connected to the output end of the adhesive application moving component.

[0009] Furthermore, the UV moving component includes a second X-axis moving component and a second Y-axis moving component. The output end of the second X-axis moving component is connected to the second Y-axis moving component to drive the second Y-axis moving component to move in a horizontal direction perpendicular to the conveyor line. The output end of the second Y-axis moving component is connected to the UV lamp to drive the UV lamp to move in a vertical direction.

[0010] Furthermore, the UV curing assembly also includes a connecting frame and a C-shaped plate. The output end of the second Y-axis moving component is connected to the connecting frame. The side of the connecting frame away from the second Y-axis moving component is connected to the horizontally arranged C-shaped plate. The UV lamp is fixed to the bottom of the C-shaped plate. One of the vision components is mounted on the connecting frame and located above the C-shaped plate. The bottom of the vision component is a shooting end, which is positioned directly opposite the concave part of the C-shaped plate.

[0011] Furthermore, the UV curing assembly also includes a first travel limiter and a second travel limiter, both of which are fixedly connected to the second Y-axis moving part and are located at both ends of the sliding path of the connecting frame.

[0012] Furthermore, both of the aforementioned vision components include a camera, a sliding plate, and a fine-tuning screw;

[0013] One side of one of the slide plates is slidably connected in the vertical direction to the output end of the adhesive application moving part or the adhesive application part; the other side of one of the slide plates is connected to one of the cameras; one of the fine-tuning screws passes through the slide plate and can abut against the output end of the adhesive application moving part or the adhesive application part; and the other vision component is connected to the output end of the UV moving part or the UV lamp.

[0014] One side of the other slide plate is slidably connected to the output end of the UV moving component or the UV lamp in a vertical direction, and the other side of the other slide plate is connected to the other camera. The other fine-tuning screw passes through the slide plate and can abut against the output end of the UV moving component or the UV lamp.

[0015] Furthermore, the conveyor line includes two fixed plates, two conveyor belts, and two motors. The two fixed plates are arranged in parallel, and the two conveyor belts are respectively installed on opposite sides of the two fixed plates. The tops of the two conveyor belts are located in the same horizontal plane, and the two motors are respectively installed on opposite sides of the two fixed plates. The output ends of the two motors are respectively connected to the two conveyor belts.

[0016] Furthermore, the conveyor line also includes two first photoelectric sensors and two second photoelectric sensors arranged sequentially along the conveying direction of the conveyor line. The two first photoelectric sensors are positioned facing the moving area of ​​the coated part, and the two second photoelectric sensors are positioned facing the moving area of ​​the UV lamp.

[0017] Furthermore, the conveyor line also includes a spacing adjustment component, which includes a first lead screw, a second lead screw, a handwheel, and a connecting belt. The first lead screw and the second lead screw are arranged in parallel. One end of each of the first lead screw and the second lead screw is rotatably connected to one of the fixed plates, and the other end of each of the first lead screw and the second lead screw passes through a threaded hole on the other fixed plate. The handwheel is connected to the first lead screw, and the connecting belt is sleeved on the first lead screw and the second lead screw.

[0018] Compared to existing technologies, this equipment places the circuit board to be coated with protective adhesive on a conveyor line. As the conveyor line transports the circuit board to below the adhesive coating assembly, one vision component photographs the circuit board to confirm its position relative to the adhesive coating assembly. A moving adhesive coating component then moves the adhesive coating assembly across the circuit board, applying protective adhesive only to the areas requiring it. Next, the conveyor line transports the circuit board to below the UV curing assembly. Another vision component photographs the circuit board to confirm the areas requiring adhesive coating. A moving UV lamp then moves across the circuit board, applying UV curing only to the areas coated with protective adhesive. This method effectively avoids areas on the circuit board that do not require adhesive coating, reducing the amount of adhesive applied and the UV curing area, thus significantly reducing production costs. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the circuit board protective adhesive coating and UV curing equipment provided in this embodiment of the utility model;

[0020] Figure 2 A schematic diagram of the coating component in the circuit board protective adhesive coating and UV curing equipment provided in this embodiment of the utility model;

[0021] Figure 3 A schematic diagram of the UV curing component in the circuit board protective adhesive coating and UV curing equipment provided in this embodiment of the utility model;

[0022] Figure 4 A schematic diagram of the conveyor line in the circuit board protective adhesive coating and UV curing equipment provided in this embodiment of the utility model. Detailed Implementation

[0023] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which form part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0024] like Figure 1-3 As shown, the present invention provides a circuit board protective adhesive coating and UV curing equipment, including a conveyor line 100, an adhesive coating assembly 200, a UV curing assembly 300, and two vision assemblies 400. The adhesive coating assembly 200 includes an adhesive coating moving part 210 and an adhesive coating part 220. The output end of the adhesive coating moving part 210 is connected to the adhesive coating part 220, which is positioned above the conveyor line 100, to drive the adhesive coating part 220 to move above the conveyor line 100. The UV curing assembly 300 includes a UV moving part 310 and a UV lamp 320. The output end of the UV moving part 310 is connected to the UV lamp 320, which is positioned above the conveyor line 100, to drive the adhesive coating part 220 to move above the conveyor line 100. One vision assembly 400 is connected to the output end of the adhesive coating moving part 210 or the adhesive coating part 220, and the other vision assembly 400 is connected to the output end of the UV moving part 310 or the UV lamp 320.

[0025] In practice, the circuit board M to be coated with protective adhesive is placed on the conveyor line 100. As the conveyor line 100 transports the circuit board M to the area below the adhesive coating assembly 200, one vision component 400 takes a picture of the circuit board M to confirm its position relative to the adhesive coating assembly 200. The adhesive coating moving component 210 drives the adhesive coating component 220 to move on the circuit board M, spraying protective adhesive only on the areas that need adhesive. Then, the conveyor line 100 transports the circuit board M to the area below the UV curing assembly 300. At this time, another vision component 400 takes a picture of the circuit board M to confirm the adhesive coating area on the circuit board M. The UV moving component 310 drives the UV lamp 320 to move on the circuit board M, performing UV curing only on the areas coated with protective adhesive. The adhesive coating and UV curing processes of this equipment effectively avoid areas on the circuit board M that do not need adhesive, reducing the amount of adhesive applied and the UV curing area, thus effectively reducing production costs.

[0026] In this embodiment, the conveyor line 100 is used to convey the circuit board M, so that the circuit board M passes under the glue application assembly 200 and the UV curing assembly 300 in sequence. The glue application assembly 200 and the UV curing assembly 300 perform glue application and UV curing operations on the circuit board M in sequence.

[0027] like Figure 4 As shown, in one embodiment, the conveyor line 100 includes two fixed plates 110, two conveyor belts 120, and two motors 130. The two fixed plates 110 are arranged in parallel, and the two conveyor belts 120 are respectively installed on opposite sides of the two fixed plates 110, with the tops of the two conveyor belts 120 located in the same horizontal plane. The two motors 130 are respectively installed on opposite sides of the two fixed plates 110, and the output ends of the two motors 130 are respectively connected to the two conveyor belts 120. The two conveyor belts 120 respectively support the bottom of both sides of the circuit board M. By driving the two conveyor belts 120 to move synchronously through the two motors 130, the circuit board M can be moved stably.

[0028] To facilitate knowing the position of the circuit board M relative to the adhesive coating assembly 200 and the UV curing assembly 300, in one embodiment, the conveyor line 100 further includes two first photoelectric sensors 140 and two second photoelectric sensors 150 arranged sequentially along the conveying direction of the conveyor line 100. The two first photoelectric sensors 140 are positioned facing the moving area of ​​the adhesive coating component 220, and the two second photoelectric sensors 150 are positioned facing the moving area of ​​the UV lamp 320.

[0029] When both first photoelectric sensors 140 are triggered, i.e., when the circuit board M is located below the adhesive coating assembly 200, the conveyor line 100 stops and the adhesive coating assembly 200 starts working; when both second photoelectric sensors 150 are triggered, i.e., when the circuit board M is located below the UV curing assembly 300, the conveyor line 100 stops and the UV curing assembly 300 starts working.

[0030] To accommodate circuit boards M of different sizes, in one embodiment, the conveyor line 100 further includes a spacing adjustment component 160. The spacing adjustment component 160 includes a first lead screw 161, a second lead screw 162, a handwheel 163, and a connecting belt 164. The first lead screw 161 and the second lead screw 162 are arranged in parallel. One end of each of the first lead screw 161 and the second lead screw 162 is rotatably connected to one of the fixing plates 110, and the other end of each of the first lead screw 161 and the second lead screw 162 are respectively provided through a threaded hole on the other fixing plate 110. The handwheel 163 is connected to the first lead screw 161, and the connecting belt 164 is sleeved on the first lead screw 161 and the second lead screw 162.

[0031] In this embodiment, the adhesive application component 200 works in conjunction with the vision component 400 to apply protective adhesive to specific points on the circuit board M.

[0032] In one embodiment, the adhesive application moving member 210 includes a first X-axis moving member 211, a first Y-axis moving member 212, and a Z-axis moving member 213. The output end of the first X-axis moving member 211 is connected to the first Y-axis moving member 212 and is used to drive the first Y-axis moving member 212 to move in a horizontal direction perpendicular to the conveyor line 100. The output end of the first Y-axis moving member 212 is connected to the Z-axis moving member 213 and is used to drive the Z-axis moving member 213 to move in a horizontal direction parallel to the conveyor line 100. The output end of the Z-axis moving member 213 is connected to the adhesive application member 220 and is used to drive the adhesive application member 220 to move in a vertical direction.

[0033] It is understood that the first X-axis moving part 211, the first Y-axis moving part 212 and the Z-axis moving part 213 can all be implemented by a motor 130 lead screw drive structure, a linear motor 130, a cylinder, a hydraulic cylinder and other structures, and are equipped with guide rails to limit the sliding direction. This is a moving mechanism that can be conceived by those skilled in the art, and will not be elaborated or explained in detail here.

[0034] In one embodiment, the adhesive applicator 220 includes a fixed frame 221, a plurality of adhesive outlet heads 222, a plurality of adhesive inlet pipes 223, and an adhesive supply pump. The fixed frame 221 is connected to the output end of the adhesive applicator 210. The plurality of adhesive outlet heads 222 are arranged parallel and vertically on the fixed frame 221. The bottom of the plurality of adhesive outlet heads 222 forms an adhesive outlet that communicates with its internal cavity. One end of the plurality of adhesive inlet pipes 223 is connected to the adhesive outlet head 222, and the other end of the plurality of adhesive inlet pipes 223 is connected to the discharge end of the adhesive supply pump. The adhesive supply pump is fixedly connected to the output end of the adhesive applicator 210.

[0035] In this embodiment, the UV curing component 300 works in conjunction with the vision component 400 to achieve point-to-point UV irradiation on the circuit board M.

[0036] In one embodiment, the UV moving member 310 includes a second X-axis moving member 311 and a second Y-axis moving member 312. The output end of the second X-axis moving member 311 is connected to the second Y-axis moving member 312 to drive the second Y-axis moving member 312 to move in a horizontal direction perpendicular to the conveyor line 100. The output end of the second Y-axis moving member 312 is connected to the UV lamp 320 to drive the UV lamp 320 to move in a vertical direction.

[0037] It is understood that the second X-axis moving part 311 and the second Y-axis moving part 312 can both be implemented using a motor 130 lead screw drive structure, a linear motor 130, a cylinder, a hydraulic cylinder, etc., and are equipped with guide rails to limit the sliding direction. This is a moving mechanism that those skilled in the art can conceive of, and will not be elaborated or explained further here.

[0038] In one embodiment, the UV curing assembly 300 further includes a connecting frame 321 and a C-shaped plate 322. The output end of the second Y-axis moving member 312 is connected to the connecting frame 321. The side of the connecting frame 321 away from the second Y-axis moving member 312 is connected to the horizontally arranged C-shaped plate 322. The UV lamp 320 is fixed to the bottom of the C-shaped plate 322. A vision component 400 is mounted on the connecting frame 321 and located above the C-shaped plate 322. The bottom of the vision component 400 is the shooting end, which is positioned directly opposite the concave part of the C-shaped plate 322.

[0039] To limit the sliding path of the UV lamp 320 and prevent interference between it and the adhesive application assembly 200, in one embodiment, the UV curing assembly 300 further includes a first travel limiter 323 and a second travel limiter 324. The first travel limiter 323 and the second travel limiter 324 are both fixedly connected to the second Y-axis moving member 312 and are respectively located at both ends of the sliding path of the connecting frame 321.

[0040] In this embodiment, both vision components 400 include a camera 410, a sliding plate 420, and a fine-tuning screw 430. One side of one sliding plate 420 is slidably connected in the vertical direction to the output end of the adhesive application moving part 210 or the adhesive application part 220, and the other side of one sliding plate 420 is connected to one of the cameras 410. One fine-tuning screw 430 passes through the sliding plate 420 and can abut against the output end of the adhesive application moving part 210 or the adhesive application part 220. The other vision component 400 is connected to the output end of the UV moving part 310 or the UV lamp 320. One side of another sliding plate 420 is slidably connected in the vertical direction to the output end of the UV moving part 310 or the UV lamp 320, and the other side of the other sliding plate 420 is connected to another camera 410. Another fine-tuning screw 430 passes through the sliding plate 420 and can abut against the output end of the UV moving part 310 or the UV lamp 320.

[0041] This embodiment also includes a frame 500, a conveyor line 100, an adhesive application assembly 200, a UV curing assembly 300, and two vision assemblies 400, all mounted on the frame 500.

[0042] Compared with existing technologies: The circuit board M to be coated with protective adhesive is placed on the conveyor line 100. As the conveyor line 100 transports the circuit board M to the area below the adhesive coating assembly 200, one vision component 400 photographs the circuit board M to confirm its position relative to the adhesive coating assembly 200. The adhesive coating component 210 then moves the adhesive coating component 220 on the circuit board M, applying protective adhesive only to the areas requiring it. Next, the conveyor line 100 transports the circuit board M to the area below the UV curing assembly 300. Here, another vision component 400 photographs the circuit board M to confirm the areas requiring adhesive. The UV lamp 320 moves on the circuit board M via the UV moving component 310, performing UV curing only on the areas coated with protective adhesive. This equipment effectively avoids areas on the circuit board M that do not require adhesive, reducing the amount of adhesive applied and the UV curing area, thus effectively reducing production costs.

[0043] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the protection scope of the present utility model.

Claims

1. A line board protection adhesive coating and UV curing apparatus, characterized by, The application relates to a coating and UV curing device. The device comprises a conveying line, a glue coating assembly, a UV curing assembly and two visual assemblies. The glue coating assembly comprises a glue coating moving part and a glue coating part. The output end of the glue coating moving part is connected with the glue coating part arranged above the conveying line to drive the glue coating part to move above the conveying line. The UV curing assembly comprises a UV moving part and a UV lamp.

2. The line board protection adhesive coating and UV curing apparatus according to claim 1, wherein, The output end of the UV moving part is connected with the UV lamp arranged above the conveying line to drive the glue coating part to move above the conveying line.

3. The line board protection adhesive coating and UV curing apparatus according to claim 1, wherein, One of the visual assemblies is connected with the output end of the glue coating moving part or the glue coating part.

4. The line board protection adhesive coating and UV curing apparatus according to claim 1, wherein, The other visual assembly is connected with the output end of the UV moving part or the UV lamp.

5. The line board protection tape coating and UV curing apparatus according to claim 4, wherein, The glue coating moving part comprises a first X-axis moving part, a first Y-axis moving part and a Z-axis moving part.

6. The line board protection tape coating and UV curing apparatus according to claim 5, wherein, The output end of the first X-axis moving part is connected with the first Y-axis moving part to drive the first Y-axis moving part to move along a horizontal direction perpendicular to the conveying line.

7. The line board protection tape coating and UV curing apparatus according to claim 1, wherein, The output end of the first Y-axis moving part is connected with the Z-axis moving part to drive the Z-axis moving part to move along a horizontal direction parallel to the conveying line. The output end of the Z-axis moving part is connected with the glue coating part to drive the glue coating part to move along a vertical direction. The glue coating part comprises a fixing frame, a plurality of glue outlet heads, a plurality of glue inlet pipes and a glue supply pump. The fixing frame is connected with the output end of the glue coating moving part. The plurality of glue outlet heads are arranged in parallel and vertically on the fixing frame. The bottom of the plurality of glue outlet heads is provided with glue outlet openings communicating with the internal cavities. One end of the plurality of glue inlet pipes is connected with the glue outlet heads in communication. The other end of the plurality of glue inlet pipes is connected with the discharge end of the glue supply pump in communication. The glue supply pump is fixedly connected with the output end of the glue coating moving part. The UV moving part comprises a second X-axis moving part and a second Y-axis moving part. The output end of the second X-axis moving part is connected with the second Y-axis moving part to drive the second Y-axis moving part to move along a horizontal direction perpendicular to the conveying line. The output end of the second Y-axis moving part is connected with the UV lamp to drive the UV lamp to move along a vertical direction. The UV curing assembly further comprises a connecting frame and a C-shaped plate. The output end of the second Y-axis moving part is connected with the connecting frame. The side of the connecting frame away from the second Y-axis moving part is connected with the horizontally arranged C-shaped plate. The UV lamp is fixed to the bottom of the C-shaped plate. One of the visual assemblies is installed on the connecting frame and located above the C-shaped plate. The bottom of the visual assembly is a shooting end which is arranged opposite to the inner recess of the C-shaped plate. The UV curing assembly further comprises a first stroke limiter and a second stroke limiter. The first stroke limiter and the second stroke limiter are fixedly connected with the second Y-axis moving part and respectively located at the two end positions of the sliding path of the connecting frame. Both of the visual assemblies comprise a camera, a sliding plate and a fine adjustment screw. One side of one of the sliding plates is connected with the output end of the glue moving part or the glue applying part in the vertical direction, the other side of one of the sliding plates is connected with one of the cameras, one of the fine adjustment screws passes through the sliding plate and can abut against the output end of the glue moving part or the glue applying part, the other visual component is connected with the output end of the UV moving part or the UV lamp; One side of the other sliding plate is connected with the output end of the UV moving part or the UV lamp in the vertical direction, the other side of the other sliding plate is connected with the other camera, the other fine adjustment screw passes through the sliding plate and can abut against the output end of the UV moving part or the UV lamp.

8. The device according to claim 1, wherein, The conveying line comprises two fixed plates, two conveyors and two motors, the two fixed plates are arranged in parallel, the two conveyors are respectively arranged on the opposite sides of the two fixed plates, the top portions of the two conveyors are located on the same horizontal plane, the two motors are respectively arranged on the opposite sides of the two fixed plates, and the output ends of the two motors are respectively connected with the two conveyors.

9. The device according to claim 8, wherein the device further comprises a UV curing unit. The conveying line further comprises two first photoelectric sensors and two second photoelectric sensors arranged in sequence along the conveying direction of the conveying line, the two first photoelectric sensors are arranged opposite to the moving area of the glue applying part, and the two second photoelectric sensors are arranged opposite to the moving area of the UV lamp.

10. The line board protection tape coating and UV curing apparatus according to claim 8, wherein, The conveying line further comprises a spacing adjusting part, the spacing adjusting part comprises a first screw rod, a second screw rod, a hand wheel and a connecting belt, the first screw rod and the second screw rod are arranged in parallel, one end of the first screw rod and the second screw rod is rotationally connected with one of the fixed plates, and the other end of the first screw rod and the second screw rod passes through the threaded hole of the other fixed plate, the hand wheel is connected with the first screw rod, and the connecting belt is sleeved on the first screw rod and the second screw rod.

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