Electrostatic and dust removal device for surface of copper-clad plate

Abstract

The invention discloses a copper-clad plate surface static electricity and dust removal device, which is applied to the technical field of copper-clad plate surface static electricity and dust removal, and comprises a supporting mechanism, a plurality of groups of limiting mechanisms, a filtering adsorption mechanism, a cleaning mechanism and two groups of detection mechanisms, the cleaning mechanism comprises two cleaning assemblies, two first thickness adjusting assemblies, two second thickness adjusting assemblies and two third thickness adjusting assemblies, the two cleaning assemblies, the first thickness adjusting assemblies and the second thickness adjusting assemblies are arranged in the vertical direction, and the two cleaning assemblies are arranged between the first thickness adjusting assemblies and the second thickness adjusting assemblies; the two first thickness adjusting assemblies and the two second thickness adjusting assemblies are located at the two ends of the two cleaning assemblies correspondingly, and the two third thickness adjusting assemblies are arranged on the two sides of the dust removal box. The device can simultaneously remove static electricity and dust on the upper surface and the lower surface of the copper-clad plate.

Description

Technical Field

[0001] This invention relates to the field of static electricity removal and dust removal technology for copper clad laminate surfaces, specifically to a static electricity removal and dust removal device for copper clad laminate surfaces. Background Technology

[0002] Copper clad laminate (CCL) is a widely used material in electronics manufacturing, especially in printed circuit board (PCB) production. It consists of a thin copper foil and an insulating substrate bonded together by adhesives or other methods. CCL is the basic material for PCB manufacturing, providing the conductive path required for electrical connections. During the processing of the CCL substrate, fibers, powder, or tiny particles are generated. These fine substances fall off and adhere to the copper foil surface during production. To ensure the smooth progress of subsequent processes and the quality of the final product, the dust adhering to the surface of the CCL needs to be removed.

[0003] However, existing technologies typically employ a side-by-side cleaning method. After cleaning one side of the copper-clad laminate, it is flipped over to clean the other side. Furthermore, contact cleaning is usually used, with the cleaning section consisting of adhesive rollers and adhesive paper rolls. When cleaning copper-clad laminates with high dust levels, the cleaning effect is poor, requiring long-term operator assistance and consuming a large number of adhesive paper rolls daily, increasing operating costs and maintenance difficulty.

[0004] Therefore, it is necessary to provide an antistatic dust removal device for the surface of copper-clad laminates to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide an antistatic and dust removal device for the surface of copper-clad laminates, which can simultaneously remove static electricity and dust from the upper and lower surfaces of the copper-clad laminate, thereby improving the efficiency and quality of antistatic and dust removal and solving the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: an antistatic dust removal device for the surface of copper clad laminate, comprising a support mechanism, several sets of limiting mechanisms, a filtering and adsorption mechanism, a cleaning mechanism, and two sets of detection mechanisms. The several sets of limiting mechanisms, filtering and adsorption mechanisms, and detection mechanisms are all arranged on the support mechanism, the cleaning mechanism is arranged on the filtering and adsorption mechanism, and the filtering and adsorption mechanism is arranged between the two sets of detection mechanisms.

[0007] The support mechanism includes a support base, several sets of conveyor belts, and a dust collection box;

[0008] The cleaning mechanism includes two sets of cleaning components, two sets of thickness adjustment components one, two sets of thickness adjustment components two, and two sets of thickness adjustment components three. The two sets of cleaning components, thickness adjustment components one, and thickness adjustment components two are arranged vertically, and the two sets of cleaning components are arranged between thickness adjustment components one and thickness adjustment components two. The two sets of thickness adjustment components one and two sets of thickness adjustment components two are located at both ends of the two sets of cleaning components, and the two sets of thickness adjustment components three are arranged on both sides of the dust collection box.

[0009] The cleaning assembly includes a vent pipe, a cleaning roller, and brush bristles. The vent pipe has several air holes on the side facing the copper-clad laminate, and the cleaning roller has several sets of air grooves arranged along its circumference.

[0010] The thickness adjustment assembly includes a fixing groove, a connecting seat, two sets of sliding plates, a spring, a pressure sensor, and a connecting plate.

[0011] The testing mechanism includes a support frame, an upper scanner, and a lower scanner.

[0012] According to the above technical solution, several sets of conveyor belts and dust collection boxes are fixed to the top of the support base. Side plates are fixedly connected to both sides of the conveyor belt. A groove is opened on the side of the two sets of side plates that are close to each other. The limiting mechanism is set in the groove. The dust collection box is set above the cleaning mechanism.

[0013] The number of conveyor belts is the same as the number of limiting mechanisms. The support mechanism and the limiting mechanism are provided in at least four sets. The detection mechanism and the cleaning mechanism are both located above the gap between two adjacent conveyor belts.

[0014] According to the above technical solution, each set of limiting mechanisms includes two limiting components. Each limiting component includes a rotating plate, a torsion spring, a metal roller, a rotating block, and a rotating shaft. The rotating plate, torsion spring, and rotating shaft are all disposed in a groove. The rotating plate is H-shaped. The rotating shaft is connected to a side plate bearing. The torsion spring is sleeved on the rotating shaft. The rotating shaft is fixedly connected to one end of the rotating plate located in the groove. The torsion spring is fixedly connected to the rotating plate and the side plate respectively.

[0015] The metal roller is disposed at the end of the rotating plate away from the groove. The metal roller is connected to the rotating plate bearing. The rotating block is disposed on the top of the metal roller and is rotatably connected to the top of the metal roller. A metal wire is connected to the top of the rotating block, and the other end of the metal wire is grounded.

[0016] According to the above technical solution, the filtration and adsorption mechanism includes a filter, an upper cover, a lower cover, a fan one, and a fan two. The upper cover and the lower cover are both located inside the dust collection box. The upper cover and the lower cover are connected to the filter by pipelines. The fan one is located on the connecting pipeline between the upper cover and the filter, and the fan two is located on the connecting pipeline between the lower cover and the filter. The openings of the upper cover and the lower cover are close to each other.

[0017] Both fan one and fan two include an air inlet one and an air outlet one. The air inlet one of fan one is connected to the upper cover, and the air outlet one of fan one is connected to the filter. The air inlet one of fan two is connected to the lower cover, and the air outlet one of fan two is connected to the filter.

[0018] According to the above technical solution, the cleaning roller is mounted on the air pipe, the cleaning roller is rotatably connected to the air pipe, and the bristles are mounted on the cleaning roller.

[0019] The vent pipe is equipped with a filter screen;

[0020] The cleaning roller is provided with a number of partitioned areas, and the air grooves correspond to the partitioned areas;

[0021] According to the above technical solution, one end of the ventilation pipe is closed and the other end is open. The open end of the ventilation pipe is connected to a connector. The connector is connected to an ion fan through a pipeline. A DC pulse ion bar is installed in the pipeline connecting the connector and the ventilation pipe. The ion fan includes two air inlets and two air outlets. The two air inlets are connected to the air end, and the two air outlets are connected to the pipeline of the connector.

[0022] According to the above technical solution, the fixing groove is U-shaped, and the two sets of sliding plates, springs, pressure sensors and connecting plates are all located inside the fixing groove. The connecting seat is set on the vent pipe and is fixedly connected to the vent pipe. The two sets of sliding plates are fixed to the top of the connecting seat and are slidably connected to the fixing groove. The two ends of the spring are fixedly connected to the connecting seat and the connecting plate respectively. The other side of the connecting plate is fixedly connected to the pressure sensor, and the other side of the pressure sensor is fixedly connected to the bottom of the U-shaped interior of the fixing groove.

[0023] According to the above technical solution, the thickness adjustment component one and the thickness adjustment component two have basically the same structure. The difference is that the upper cover is provided with a through groove one, the thickness adjustment component one is located in the through groove one, the fixing groove of the thickness adjustment component one is fixedly connected to the upper cover, and the thickness adjustment component two is arranged in the lower cover, the fixing groove of the thickness adjustment component two is fixedly connected to the inner wall of the lower cover.

[0024] The upper cover is provided with two sets of three through slots below the first through slot. A limiting block is fixedly connected to the lower part of the thickness adjustment component. The limiting block is located in the third through slot and is slidably connected to the upper cover.

[0025] According to the above technical solution, the thickness adjustment component includes a fixing block, a cylinder and a connecting ring. The fixing block is fixed to the side of the dust collector, the cylinder is fixed to the bottom of the fixing block, the connecting ring is fixed to the bottom of the cylinder, and the connecting ring is sleeved around the air pipe.

[0026] The dust collection box has a second through groove on its side. The air vent of the cleaning component located above the copper-clad laminate is located in the second through groove. Two sets of sealing plates are also fixedly connected to the air vent. The two sets of sealing plates are located on the outside of the dust collection box and are slidably connected to the dust collection box.

[0027] According to the above technical solution, the support frame is U-shaped, and a fixing rod is fixedly connected to the support frame. The support frame is fixed to the top of the support base, and the upper scanner and the lower scanner are respectively fixed to the bottom of the support frame and the top of the fixing rod.

[0028] The electrostatic discharge and dust removal device for the surface of copper-clad laminate also includes an information analysis module. The pressure sensor, upper scanner, and lower scanner are all electrically connected to the information analysis module. The device also acquires pressure detection data from the pressure sensor. The information analysis module is also electrically connected to the conveyor belt and cylinder.

[0029] Compared with the prior art, the beneficial effects achieved by the present invention are: the present invention, by setting a limiting mechanism, can limit the copper-clad laminate on the conveyor belt, and at the same time straighten the copper-clad laminate. It can also actively remove static electricity on the copper-clad laminate by contacting the copper-clad laminate during the limiting process using a metal roller.

[0030] By setting up a cleaning mechanism, it can use ion wind to remove static electricity, use the copper-clad laminate to drive the brush bristles and cleaning rollers to perform mechanical cleaning, use ion wind to blow away dust and work with the filtration and adsorption mechanism to adsorb it. At the same time, it can combine passive fine adjustment and active coarse adjustment mechanisms, and incorporate pressure sensors for real-time monitoring, so as to achieve high self-adaptation to copper-clad laminate thickness fluctuations, deformation and local dust accumulation, ensuring stable and reliable cleaning results. Attached Figure Description

[0031] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0032] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0033] Figure 2This is the invention Figure 1 Enlarged structural diagram of region A in the middle;

[0034] Figure 3 This is a partial isometric sectional view of the structure of the present invention;

[0035] Figure 4 This is a schematic cross-sectional view of the main structure of the present invention. Figure 1 ;

[0036] Figure 5 This is the invention Figure 4 Enlarged structural diagram of region B in the middle;

[0037] Figure 6 This is the invention Figure 3 Enlarged structural diagram of region C in the middle;

[0038] Figure 7 This is a schematic cross-sectional view of the main structure of the present invention. Figure 2 ;

[0039] Figure 8 This is the invention Figure 7 A magnified schematic diagram of the D region;

[0040] Figure 9 This is the invention Figure 3 Enlarged structural diagram of region E in the middle;

[0041] Figure 10 This is the invention Figure 4 A magnified structural diagram of the middle F region;

[0042] In the diagram: 1. Support mechanism; 11. Support base; 12. Conveyor belt; 13. Side plate; 14. Dust collection box; 15. Groove;

[0043] 2. Limiting mechanism; 21. Rotating plate; 22. Torsion spring; 23. Metal roller; 24. Rotating block; 25. Metal wire; 26. Rotating shaft;

[0044] 3. Filtration and adsorption mechanism; 31. Filter; 32. Upper cover; 33. Lower cover; 34. Fan 1; 35. Fan 2; 36. Through channel 1;

[0045] 4. Cleaning mechanism; 41. Vent pipe; 42. Cleaning roller; 43. Brush bristles; 44. Fixing groove; 45. Connecting seat; 46. Sliding plate; 47. Spring; 48. Pressure sensor; 49. Connecting plate; 410. Filter screen; 411. Connector; 412. Fixing block; 413. Cylinder; 414. Connecting ring; 415. Air hole; 416. Air groove; 417. Through groove two; 418. Sealing plate; 419. Limiting block;

[0046] 5. Testing facility; 51. Support frame; 52. Upper scanner; 53. Lower scanner. Detailed Implementation

[0047] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0048] Please see Figures 1-10 This invention provides a technical solution: an antistatic and dust removal device for copper-clad laminate surfaces, comprising a support mechanism 1, several sets of limiting mechanisms 2, a filtering and adsorption mechanism 3, a cleaning mechanism 4, and two sets of detection mechanisms 5. The limiting mechanisms 2, filtering and adsorption mechanisms 3, and detection mechanisms 5 are all mounted on the support mechanism 1. The cleaning mechanism 4 is mounted on the filtering and adsorption mechanism 3, which is positioned between the two sets of detection mechanisms 5. The support mechanism 1 supports and conveys the copper-clad laminate. The limiting mechanisms 2 are used to align, limit, and remove static electricity from the copper-clad laminate on the support mechanism 1. The filtering and adsorption mechanism 3 adsorbs and filters dust from the copper-clad laminate. The cleaning mechanism 4 assists in removing dust from the filtering and adsorption mechanism 3. The detection mechanisms 5 detect the dust condition of the copper-clad laminate before and after antistatic and dust removal on the support mechanism 1, thereby enabling targeted adjustment of the operation of the filtering and adsorption mechanism 3 and the cleaning mechanism 4 to improve the efficiency and quality of antistatic and dust removal for the copper-clad laminate.

[0049] Specifically, such as Figure 1 and Figure 4 As shown, the support mechanism 1 includes a support base 11, several sets of conveyor belts 12, and a dust collection box 14. The several sets of conveyor belts 12 and the dust collection box 14 are all fixed to the top of the support base 11. Side plates 13 are fixedly connected to both sides of the conveyor belts 12. A groove 15 is opened on the side of the two sets of side plates 13 that are close to each other. The limiting mechanism 2 is set in the groove 15. The dust collection box 14 is set above the cleaning mechanism 4. The conveyor belts 12 are used to drive the copper-clad laminates. The side plates 13 are used to prevent the copper-clad laminates on the conveyor belts 12 from falling off. The dust collection box 14 is used to provide a relatively sealed environment for the copper-clad laminates to remove static electricity and dust, while preventing the dust from being scattered everywhere.

[0050] It should be noted that the number of sets of conveyor belt 12 is the same as the number of sets of limit mechanism 2, such as... Figure 1 and Figure 4 As shown, the support mechanism 1 and the limiting mechanism 2 are provided with at least four sets. The two sets of detection mechanisms 5 and the cleaning mechanism 4 are all set above the gap between the two adjacent sets of conveyor belts 12. Thus, the detection mechanism 5 can detect the dust situation of the copper-clad board before and after static electricity removal and dust removal. The conveyor belt 12 is a motor-driven conveyor belt for material transfer.

[0051] Specifically, such as Figure 2 As shown, each set of limiting mechanisms 2 includes two limiting components. The limiting components include a rotating plate 21, a torsion spring 22, a metal roller 23, a rotating block 24, and a rotating shaft 26. The rotating plate 21, the torsion spring 22, and the rotating shaft 26 are all disposed in the groove 15. The rotating plate 21 is H-shaped. The rotating shaft 26 is connected to the side plate 13 by a bearing. The torsion spring 22 is sleeved on the rotating shaft 26. The rotating shaft 26 is fixedly connected to one end of the rotating plate 21 located in the groove 15. The torsion spring 22 is fixedly connected to the rotating plate 21 and the side plate 13 respectively.

[0052] Metal roller 23 is located at one end of rotating plate 21 away from groove 15. Metal roller 23 is connected to rotating plate 21 by bearing. Rotating block 24 is located on top of metal roller 23. Rotating block 24 is rotatably connected to the top of metal roller 23. Metal wire 25 is connected to the top of rotating block 24. The other end of metal wire 25 is grounded.

[0053] In actual operation, several sets of conveyor belts 12 are started simultaneously, so that the conveyor belts 12 are in a state of conveying materials to the left, and the transmission speed of the several sets of conveyor belts 12 is kept the same. The operator manually or by the operator controlling the relevant equipment places the copper-clad laminate on the top of the right-side conveyor belt 12, and the conveyor belt 12 transports the copper-clad laminate. When the copper-clad laminate passes the limiting component, the edge of the copper-clad laminate will contact the metal roller 23. Since the top of the metal roller 23 is rotatably connected to the rotating block 24, and the rotating block 24 is connected to the grounded metal wire 25, the copper foil on the copper-clad laminate can transfer the charge it carries to the ground through the metal roller 23, the rotating block 24, and the metal wire 25, thereby achieving the effect of eliminating static electricity.

[0054] Meanwhile, since each set of filter adsorption mechanism 3 is equipped with two limiting components, and the metal roller 23 is mounted on the rotating plate 21, and the rotating plate 21 is equipped with torsion springs 22 that are respectively connected to the rotating plate 21 and the side plate 13, due to the gravity of the copper-clad laminate, when the copper-clad laminate contacts the metal roller 23, the conveyor belt 12 maintains a leftward conveying state, and the copper-clad laminate will provide a certain resistance to the metal roller 23. While rotating, the metal roller 23 will also transmit this resistance to the rotating plate 21, and the rotating plate 21 will drive the rotating shaft 26 to rotate around the side plate. When the hinge of 13 rotates counterclockwise, both sets of limiting components will rotate. Due to the torque of the torsion spring 22, it will act in the opposite direction on the rotating plate 21, causing the rotating plate 21 to drive the rotating shaft 26 to rotate clockwise around the hinge with the side plate 13. Thus, under the resistance of the metal roller 23 and the torque of the torsion spring 22 when the copper-clad laminate is transported by the conveyor belt 12, the position of the copper-clad laminate on the conveyor belt 12 can be adjusted so that the copper-clad laminate can be located at the center of the conveyor belt 12, laying the foundation for subsequent static electricity removal and dust removal.

[0055] Specifically, such as Figure 1 and Figure 3As shown, the filtration and adsorption mechanism 3 includes a filter 31, an upper cover 32, a lower cover 33, a first fan 34, and a second fan 35. The upper cover 32 and the lower cover 33 are both located inside the dust collection box 14. The upper cover 32 and the lower cover 33 are connected to the filter 31 by pipelines. The first fan 34 is located on the connecting pipeline between the upper cover 32 and the filter 31, and the second fan 35 is located on the connecting pipeline between the lower cover 33 and the filter 31. The openings of the upper cover 32 and the lower cover 33 are close to each other and are symmetrically arranged about the upper surface of the conveyor belt 12. The filter 31 is provided with a dust removal port and an air exchange port.

[0056] Both fan 1 34 and fan 2 35 include an air inlet 1 and an air outlet 1. The air inlet 1 of fan 1 34 is connected to the upper cover 32, and the air outlet 1 of fan 1 34 is connected to the filter 31. The air inlet 1 of fan 2 35 is connected to the lower cover 33, and the air outlet 1 of fan 2 35 is connected to the filter 31. When fan 1 34 and fan 2 35 are started simultaneously, the dust inside the dust collection box 14 and the upper and lower surfaces of the copper-clad laminate can be adsorbed into the filter 31 through the pipes via the upper cover 32 and the lower cover 33, and then collected by the filter 31.

[0057] Specifically, such as Figures 3-9 As shown, the cleaning mechanism 4 includes two sets of cleaning components, two sets of thickness adjustment components one, two sets of thickness adjustment components two, and two sets of thickness adjustment components three. The two sets of cleaning components, thickness adjustment components one, and thickness adjustment components two are arranged vertically, with the two sets of cleaning components positioned between thickness adjustment components one and thickness adjustment components two. The two sets of thickness adjustment components one and two are located at opposite ends of the two sets of cleaning components, while the two sets of thickness adjustment components three are located on both sides of the dust collection box 14. The cleaning components are used to perform static electricity removal and dust removal operations on the upper and lower surfaces of the copper-clad laminate. Thickness adjustment components one is used to passively adjust the height of the set of cleaning components located above the copper-clad laminate, thickness adjustment components two is used to passively adjust the height of the set of cleaning components located below the copper-clad laminate, and thickness adjustment components three is used to actively adjust the height of the set of cleaning components located above the copper-clad laminate. This makes it suitable for static electricity removal and dust removal on copper-clad laminates of different thicknesses.

[0058] Furthermore, such as Figures 3-5 and Figure 9 As shown, the cleaning assembly includes a vent pipe 41, a cleaning roller 42, and brush bristles 43. The cleaning roller 42 is mounted on the vent pipe 41 and is rotatably connected to the vent pipe 41. The brush bristles 43 are mounted on the cleaning roller 42 and are used to brush away dust from the surface of the copper-clad laminate.

[0059] The vent pipe 41 is equipped with a filter screen 410 inside, and the vent pipe 41 has several air holes 415 on the side facing the copper-clad laminate.

[0060] The cleaning roller 42 is provided with several partition areas, and several sets of air grooves 416 are provided on the cleaning roller 42 along the circumference of the cleaning roller 42, and the air grooves 416 correspond to the partition areas.

[0061] One end of the ventilation pipe 41 is closed and the other end is open. The open end of the ventilation pipe 41 is connected to a connector 411. The connector 411 is connected to an ion fan through a pipeline. A DC pulse ion bar is installed in the pipeline connecting the connector 411 and the ventilation pipe 41. The ion fan includes an air inlet 2 and an air outlet 2. The air inlet 2 is connected to the air end, and the air outlet 2 is connected to the pipeline of the connector 411.

[0062] In actual operation, when the ion fan and DC pulse ion bar are started, the ion fan can pump air into the pipeline. When passing through the DC pulse ion bar, the air can be ionized by high voltage to generate positive / negative ions. The air carrying positive / negative ions can then contact the surface of the copper-clad laminate through the air hole 415 and the air groove 416 to neutralize the surface charge of the insulating substrate. This achieves the effect of removing the static electricity carried by the dust on the surface of the copper-clad laminate, thus avoiding the situation where dust is adsorbed on the surface of the copper-clad laminate due to static electricity and is difficult to remove.

[0063] As the conveyor belt 12 continuously transports the copper-clad laminate, when the copper-clad laminate comes into contact with the brush bristles 43, it will generate a certain resistance to the brush bristles 43, which will drive the brush bristles 43 and the cleaning roller 42 to rotate around the air pipe 41, cleaning the surface of the copper-clad laminate and further removing dust. At the same time, the air carrying positive / negative ions will blow up the cleaned dust, which will then be easily adsorbed by the filter adsorption mechanism 3, thus improving the effect of static electricity removal and dust removal.

[0064] Furthermore, such as Figure 3 and Figures 6-8As shown, the thickness adjustment assembly includes a fixed groove 44, a connecting seat 45, two sets of sliding plates 46, a spring 47, a pressure sensor 48, and a connecting plate 49. The fixed groove 44 is U-shaped. The two sets of sliding plates 46, spring 47, pressure sensor 48, and connecting plate 49 are all located inside the fixed groove 44. The connecting seat 45 is mounted on the vent pipe 41 and is fixedly connected to the vent pipe 41. The two sets of sliding plates 46 are fixed to the top of the connecting seat 45 and are slidably connected to the fixed groove 44. The two ends of the spring 47 are fixedly connected to the connecting seat 45 and the connecting plate 49, respectively. The other end of the connecting plate 49... One side is fixedly connected to the pressure sensor 48, and the other side of the pressure sensor 48 is fixedly connected to the bottom of the U-shaped interior of the fixing groove 44. When the thickness of the copper-clad laminate changes, the brush bristles 43 will drive the cleaning roller 42 and the air pipe 41 to move away from the copper-clad laminate, which will compress the spring 47. Since the spring 47 has elasticity, the pressure sensor 48 can detect the pressure change. At the same time, when the thickness of the copper-clad laminate returns to the original thickness, under the elasticity of the spring 47, the brush bristles 43 will still maintain the initial contact between the copper-clad laminate surface and the brush bristles 43, thus passively adapting to copper-clad laminates of different thicknesses.

[0065] It should be noted that the contact between the brush bristles 43 and the surface of the copper-clad laminate is slight. The specific length of contact is set by the staff. When the copper-clad laminate is conveyed by the conveyor belt 12, the brush bristles 43 contact the copper-clad laminate and there is resistance. The resistance is still transmitted to the connecting plate 49 through the spring 47. The connecting plate 49 squeezes the pressure sensor 48, and the pressure sensor 48 detects a certain pressure fluctuation.

[0066] The thickness adjustment component one and the thickness adjustment component two have basically the same structure. The difference is that the width of the fixing groove 44 of the thickness adjustment component one is smaller than the width of the fixing groove 44 of the thickness adjustment component two. As a result, the two sets of fixing grooves 44 of the thickness adjustment component two and the two adjacent sets of conveyor belts 12 can form a relatively closed space, ensuring that the dust under the copper-clad board can be completely adsorbed by the filter 31 through the lower cover 33.

[0067] The upper cover 32 has a through groove 36, the thickness adjustment component 1 is located in the through groove 36, the fixing groove 44 of the thickness adjustment component 1 is fixedly connected to the upper cover 32, the thickness adjustment component 2 is located in the lower cover 33, and the fixing groove 44 of the thickness adjustment component 2 is fixedly connected to the inner wall of the lower cover 33.

[0068] The upper cover 32 is located below the through groove 36 and has two sets of through grooves 3. A limiting block 419 is fixedly connected to the lower part of the thickness adjustment component 1. The limiting block 419 is located in the through groove 3 and is slidably connected to the upper cover 32. The limiting block 419 is used to limit the fine adjustment range of the thickness adjustment component 1 and to form a relatively sealed condition around the upper cover 32, so that there is an opening only on the side near the copper-clad laminate, thereby ensuring the filtration and adsorption effect of the filter adsorption mechanism 3.

[0069] Furthermore, such as Figure 9 As shown, the thickness adjustment component three includes a fixing block 412, a cylinder 413, and a connecting ring 414. The fixing block 412 is fixed to the side of the dust collection box 14, the cylinder 413 is fixed to the bottom of the fixing block 412, and the connecting ring 414 is fixed to the bottom of the cylinder 413. The connecting ring 414 is sleeved around the vent pipe 41. The cylinder 413 is preferably slotted. The cylinders 413 of the two sets of thickness adjustment components three extend and retract synchronously, which can drive the vent pipe 41 on the connecting ring 414 to rise and fall synchronously, thereby adjusting the height of the cleaning component above the copper-clad laminate to actively adapt to copper-clad laminates of different thicknesses.

[0070] The side of the dust collection box 14 is provided with a second through groove 417. The vent pipe 41 of the cleaning component above the copper clad laminate is located in the second through groove 417. Two sets of sealing plates 418 are also fixedly connected to the vent pipe 41. The two sets of sealing plates 418 are located on the outside of the dust collection box 14 and are slidably connected to the dust collection box 14. This allows the side wall of the dust collection box 14 to remain relatively closed when the cleaning component above the copper clad laminate adapts to copper clad laminates of different thicknesses. This prevents the dust cleaned by the cleaning component from scattering, reducing environmental quality, and increasing the workload of subsequent static electricity removal and dust removal on the surface of the copper clad laminate.

[0071] Specifically, such as Figure 10 As shown, the detection mechanism 5 includes a support frame 51, an upper scanner 52, and a lower scanner 53. The support frame 51 is U-shaped and a fixed rod is fixedly connected to it. The support frame 51 is fixed to the top of the support base 11. The upper scanner 52 and the lower scanner 53 are respectively fixed to the bottom of the support frame 51 and the top of the fixed rod. The upper scanner 52 and the lower scanner 53 are symmetrically arranged relative to the upper surface of the conveyor belt 12. The upper scanner 52 and the lower scanner 53 are used to pass through the gap between two adjacent sets of conveyor belts 12 to photograph the dust on the upper and lower surfaces of the copper-clad board before and after cleaning.

[0072] The electrostatic removal and dust removal device for the copper clad laminate surface also includes an information analysis module. The pressure sensor 48, the upper scanner 52, and the lower scanner 53 are all electrically connected to the information analysis module. The information analysis module is used to acquire the images captured by the upper scanner 52 and the lower scanner 53, identify the proportion of dust in the images, and also acquire the pressure detection data of the pressure sensor 48 to determine the deformation of the copper clad laminate surface. The information analysis module is also electrically connected to the conveyor belt 12 and the cylinder 413 to control them to adjust the transmission speed and actively adapt to the thickness of the copper clad laminate.

[0073] Working principle:

[0074] Start several sets of conveyor belts 12 and keep the transmission speed of several sets of conveyor belts 12 the same. The operator manually or by the operator controlling the relevant equipment places the copper-clad laminate on the top of the right-side conveyor belt 12. The conveyor belt 12 transports the copper-clad laminate. During the transport, the limiting mechanism 2 adjusts the position of the copper-clad laminate on the conveyor belt 12 so that the copper-clad laminate can be located at the center of the conveyor belt 12. The metal roller 23 is used to contact the copper-clad laminate to remove static electricity on the copper-clad laminate.

[0075] Simultaneously start the first fan 34, the second fan 35, the ion fan, and the DC pulse ion bar. The brush bristles 43 on the cleaning component clean the upper and lower surfaces of the copper clad laminate. The ion fan pumps air into the pipe. When the air passes through the DC pulse ion bar, it generates positive / negative ions through high voltage ionization. The air carrying positive / negative ions comes into contact with the surface of the copper clad laminate through the air hole 415 and the air groove 416, neutralizing the surface charge of the insulating substrate. This achieves the effect of removing the static electricity carried by the dust on the surface of the copper clad laminate, thus avoiding the situation where dust is difficult to remove due to static electricity adsorbed on the surface of the copper clad laminate. At this time, the dust in the cleaning and blowing area can be adsorbed and collected by the filter adsorption mechanism 3 to prevent the dust from flying away.

[0076] Detection of copper clad laminate in its transmission direction: When the brush 43 on the cleaning component cleans the copper clad laminate, due to the uneven thickness, deformation and different amount of dust in the copper clad laminate, the two sets of thickness adjustment components one and two sets of thickness adjustment components two will passively adapt to the thickness change of the copper clad laminate. This will cause the pressure value detected by the pressure sensor 48 in the thickness adjustment component one and the two sets of thickness adjustment components two to fluctuate more. When the fluctuation value increases to a certain value, the specific allowable fluctuation range is set by the user. The information analysis module will issue an alarm. At this time, the copper clad laminate has obvious deformation, uneven thickness or dust accumulation in its transmission direction.

[0077] Detection 1 of the copper clad laminate along the setting direction of the cleaning components: Since there are two sets of thickness adjustment components 1 and 2, the information analysis module will also obtain the difference between the pressure values ​​of the two sets of thickness adjustment components 1 and the difference between the pressure values ​​of the two sets of thickness adjustment components 2. When the difference between the pressure values ​​of the two sets of thickness adjustment components 1 or the difference between the pressure values ​​of the two sets of thickness adjustment components 2 exceeds a certain value (the specific value is set manually), the information analysis module will issue an alarm. At this time, the copper clad laminate has uneven thickness or dust accumulation along the setting direction of the cleaning components.

[0078] During the transmission of the copper-clad laminate, the information analysis module also collects images captured by the upper scanner 52 and the lower scanner 53 of the two detection components.

[0079] Detection 2 of the copper clad laminate along the setting direction of the cleaning component: Before static electricity removal and dust removal, the surface of the copper clad laminate along the setting direction of the cleaning component will have the following conditions, and control the conveyor belt 12 and cylinder 413 to perform corresponding operations according to the corresponding conditions, so as to maximize the removal of dust attracted by static electricity on the surface of the copper clad laminate.

[0080] Scenario 1: When there is no dust on the surface of the copper-clad laminate or there is a small area of ​​dust but no accumulation, the information analysis module controls and maintains the initial transmission rate to transmit, remove static electricity and remove dust from the copper-clad laminate.

[0081] Scenario 2: When there is a small amount of dust accumulation, the information analysis module first controls the conveyor belt 12 to maintain the initial transmission rate. When the copper-clad board with dust accumulation passes through two sets of cleaning components, the information analysis module then controls the information analysis module to reduce the transmission rate, so that the copper-clad board slowly passes through the two sets of cleaning components. At this time, the brush bristles 43 can still clean the surface of the copper-clad board, but the rotation speed during cleaning is reduced. At this time, the dust electrostatically adsorbed on the surface of the copper-clad board is removed mainly by extending the time of the cleaning components to blow the copper-clad board.

[0082] Scenario 3: When there is a large area of ​​dust accumulation, the information analysis module first controls the conveyor belt 12 to maintain the initial transmission rate. When the copper-clad laminate with dust accumulation passes through two sets of cleaning components, the information analysis module, based on Scenario 2, reduces the transmission rate while controlling the cylinder 413 to extend, causing the air pipe 41 of the cleaning component above the copper-clad laminate to descend. This increases the contact between the brush bristles 43 and the copper-clad laminate. Although the rotation speed of the brush bristles 43 when cleaning the surface of the copper-clad laminate decreases, the increased contact increases the cleaning force, allowing the accumulated dust to be peeled off from the surface of the copper-clad laminate. At the same time, the distance between the air hole 415 on the air pipe 41 and the copper-clad laminate decreases, and the speed at which the air carrying positive / negative ions comes into contact with the surface of the copper-clad laminate through the air hole 415 and the air groove 416 increases. This not only prolongs the time for the cleaning component to blow the copper-clad laminate, but also increases the blowing force, thus better removing the dust electrostatically adsorbed on the surface of the copper-clad laminate.

[0083] Scenario 4: When there is a large area of ​​dust but no accumulation, the information analysis module first controls the conveyor belt 12 to maintain the initial transmission rate. When the copper-clad board with dust accumulation passes through two sets of cleaning components, the information analysis module controls the conveyor belt 12 to maintain the initial transmission rate and reciprocate to transport the copper-clad board. The number of reciprocating transmissions and the length are set by the staff. At this time, the brush bristles 43 can not only clean the surface of the copper-clad board, but also remove the dust electrostatically adsorbed on the surface of the copper-clad board by extending the time of the cleaning components to blow the copper-clad board.

[0084] It should be noted that in scenario three, because the information analysis module controls the cylinder 413 to extend, the position of the vent pipe 41 in the cleaning assembly above the copper-clad laminate is restricted, causing the vent pipe 41 to be positioned above the slot of the connecting ring 414 and in contact with the connecting ring 414. Even if the copper-clad laminate fluctuates, the thickness adjustment assembly cannot passively adapt to the thickness of the copper-clad laminate due to the position of the connecting ring 414 on the vent pipe 41. In this case, the detection of the copper-clad laminate along the setting direction of the cleaning assembly cannot be performed normally. If the detection of the copper-clad laminate along the setting direction of the cleaning assembly is still required, scenario four can be performed based on scenario three to determine the thickness of the copper-clad laminate along the setting direction of the cleaning assembly. Furthermore, the information analysis module determines the size of the dust area by setting a dust area percentage. The information analysis module identifies the dust area in the images captured by the upper scanner 52 and the lower scanner 53 and calculates the percentage. When the calculated area percentage is higher than the set area percentage, it is determined to be a large area; when it is lower than the set area percentage, it is determined to be a small area. If the calculated area percentage is zero, it is determined to be no dust. The information analysis module determines whether dust has accumulated by identifying the brightness of the copper-clad laminate in the images captured by the upper scanner 52 and the lower scanner 53. When the obtained brightness is high, there is no dust accumulation; when the obtained brightness is low, dust has accumulated. The specific brightness limit is set manually.

[0085] The third step in the inspection of copper-clad laminates along the cleaning component setting direction is to use an information analysis module to identify the surface condition of the copper-clad laminate after static electricity removal and dust removal. If dust is still present, an alarm will be triggered, indicating that static electricity removal and dust removal are not complete. If there is no dust, static electricity removal and dust removal are complete, and the next production process can proceed. The copper-clad laminates inspected here are sorted and recycled by the staff.

[0086] The above methods can clean both the top and bottom surfaces of the copper-clad laminate simultaneously, and can also be used to treat the surface according to the amount of dust, thereby improving the efficiency and quality of static electricity removal and dust removal.

[0087] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0088] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A static electricity removal and dust removal device for the surface of copper-clad laminates, comprising a support mechanism (1), several sets of limiting mechanisms (2), a filtering and adsorption mechanism (3), a cleaning mechanism (4), and two sets of detection mechanisms (5), characterized in that, Several sets of limiting mechanisms (2), filtering and adsorption mechanisms (3) and detection mechanisms (5) are all set on the support mechanism (1), the cleaning mechanism (4) is set on the filtering and adsorption mechanism (3), and the filtering and adsorption mechanism (3) is set between the two sets of detection mechanisms (5); The support mechanism (1) includes a support base (11), several sets of conveyor belts (12) and a dust collection box (14); The cleaning mechanism (4) includes two sets of cleaning components, two sets of thickness adjustment components one, two sets of thickness adjustment components two, and two sets of thickness adjustment components three. The two sets of cleaning components, thickness adjustment components one, and thickness adjustment components two are arranged vertically, and the two sets of cleaning components are arranged between thickness adjustment components one and thickness adjustment components two. The two sets of thickness adjustment components one and the two sets of thickness adjustment components two are located at both ends of the two sets of cleaning components, and the two sets of thickness adjustment components three are arranged on both sides of the dust collection box (14). The cleaning assembly includes a vent pipe (41), a cleaning roller (42), and bristles (43). The vent pipe (41) has several air holes (415) on the side facing the copper-clad laminate. The cleaning roller (42) has several sets of air grooves (416) arranged along the circumference of the cleaning roller (42). The thickness adjustment assembly includes a fixing groove (44), a connecting seat (45), two sets of sliding plates (46), a spring (47), a pressure sensor (48), and a connecting plate (49); The testing mechanism (5) includes a support frame (51), an upper scanner (52), and a lower scanner (53).

2. The electrostatic discharge and dust removal device for the surface of copper-clad laminate according to claim 1, characterized in that, Several sets of conveyor belts (12) and dust collection boxes (14) are fixed to the top of the support base (11). Side plates (13) are fixedly connected to both sides of the conveyor belt (12). A groove (15) is opened on the side of the two sets of side plates (13) that are close to each other. The limiting mechanism (2) is set in the groove (15). The dust collection box (14) is set above the cleaning mechanism (4). The number of sets of the conveyor belt (12) is the same as the number of sets of the limiting mechanism (2). The supporting mechanism (1) and the limiting mechanism (2) are provided with at least four sets. The two sets of the detection mechanism (5) and the cleaning mechanism (4) are both set above the gap between two adjacent sets of conveyor belts (12).

3. The electrostatic discharge and dust removal device for the surface of copper-clad laminate according to claim 2, characterized in that, Each of the limiting mechanisms (2) includes two limiting components. The limiting components include a rotating plate (21), a torsion spring (22), a metal roller (23), a rotating block (24), and a rotating shaft (26). The rotating plate (21), torsion spring (22), and rotating shaft (26) are all disposed in a groove (15). The rotating plate (21) is H-shaped. The rotating shaft (26) is connected to the side plate (13) by a bearing. The torsion spring (22) is sleeved on the rotating shaft (26). The rotating shaft (26) is fixedly connected to one end of the rotating plate (21) located in the groove (15). The torsion spring (22) is fixedly connected to the rotating plate (21) and the side plate (13) respectively. The metal roller (23) is located at one end of the rotating plate (21) away from the groove (15). The metal roller (23) is connected to the rotating plate (21) by a bearing. The rotating block (24) is located on the top of the metal roller (23). The rotating block (24) is rotatably connected to the top of the metal roller (23). A metal wire (25) is connected to the top of the rotating block (24), and the other end of the metal wire (25) is grounded.

4. The electrostatic discharge and dust removal device for the surface of copper-clad laminate according to claim 3, characterized in that, The filtration and adsorption mechanism (3) includes a filter (31), an upper cover (32), a lower cover (33), a fan (34), and a fan (35). The upper cover (32) and the lower cover (33) are both located inside the dust collection box (14). The upper cover (32) and the lower cover (33) are connected to the filter (31) by pipelines. The fan (34) is located on the connecting pipeline between the upper cover (32) and the filter (31). The fan (35) is located on the connecting pipeline between the lower cover (33) and the filter (31). The openings of the upper cover (32) and the lower cover (33) are close to each other. Both the first fan (34) and the second fan (35) include an air inlet and an air outlet. The air inlet of the first fan (34) is connected to the upper cover (32), and the air outlet of the first fan (34) is connected to the filter (31). The air inlet of the second fan (35) is connected to the lower cover (33), and the air outlet of the second fan (35) is connected to the filter (31).

5. The electrostatic discharge and dust removal device for the surface of copper-clad laminate according to claim 4, characterized in that, The cleaning roller (42) is mounted on the air pipe (41), and the cleaning roller (42) is rotatably connected to the air pipe (41). The bristles (43) are mounted on the cleaning roller (42). The vent pipe (41) is equipped with a filter screen (410); The cleaning roller (42) is provided with several partitioned areas, and the air groove (416) corresponds to the partitioned areas.

6. The electrostatic discharge and dust removal device for the surface of copper-clad laminate according to claim 5, characterized in that, One end of the ventilation pipe (41) is closed and the other end is open. The open end of the ventilation pipe (41) is connected to a connector (411). The connector (411) is connected to an ion fan through a pipeline. A DC pulse ion bar is installed in the pipeline connecting the connector (411) and the ventilation pipe (41). The ion fan includes an air inlet and an air outlet. The air inlet is connected to the air end, and the air outlet is connected to the pipeline of the connector (411).

7. The electrostatic discharge and dust removal device for the surface of copper-clad laminate according to claim 6, characterized in that, The fixing groove (44) is U-shaped. The two sets of sliding plates (46), springs (47), pressure sensors (48) and connecting plates (49) are all located inside the fixing groove (44). The connecting seat (45) is set on the vent pipe (41) and is fixedly connected to the vent pipe (41). The two sets of sliding plates (46) are fixed to the top of the connecting seat (45) and are slidably connected to the fixing groove (44). The two ends of the spring (47) are fixedly connected to the connecting seat (45) and the connecting plate (49) respectively. The other side of the connecting plate (49) is fixedly connected to the pressure sensor (48), and the other side of the pressure sensor (48) is fixedly connected to the bottom of the U-shaped interior of the fixing groove (44).

8. The electrostatic discharge and dust removal device for the surface of copper-clad laminate according to claim 7, characterized in that, The thickness adjustment component one and the thickness adjustment component two have basically the same structure. The difference is that the upper cover (32) is provided with a through groove (36), the thickness adjustment component one is located in the through groove (36), the fixing groove (44) of the thickness adjustment component one is fixedly connected to the upper cover (32), the thickness adjustment component two is set in the lower cover (33), and the fixing groove (44) of the thickness adjustment component two is fixedly connected to the inner wall of the lower cover (33). The upper cover (32) is provided with two sets of three through slots below the first through slot (36). A limiting block (419) is fixedly connected to the lower part of the thickness adjustment component. The limiting block (419) is located in the third through slot and is slidably connected to the upper cover (32).

9. The electrostatic discharge and dust removal device for the surface of copper-clad laminate according to claim 8, characterized in that, The thickness adjustment assembly includes a fixing block (412), a cylinder (413), and a connecting ring (414). The fixing block (412) is fixed to the side of the dust collection box (14), the cylinder (413) is fixed to the bottom of the fixing block (412), and the connecting ring (414) is fixed to the bottom of the cylinder (413). The connecting ring (414) is sleeved around the vent pipe (41). The dust collection box (14) has a second through groove (417) on its side. The air pipe (41) of the cleaning component located above the copper-clad laminate is located in the second through groove (417). Two sets of sealing plates (418) are also fixedly connected to the air pipe (41). The two sets of sealing plates (418) are located outside the dust collection box (14) and are slidably connected to the dust collection box (14).

10. The electrostatic discharge and dust removal device for the surface of a copper-clad laminate according to claim 9, characterized in that, The support frame (51) is U-shaped, and a fixing rod is fixedly connected to the support frame (51). The support frame (51) is fixed to the top of the support base (11). The upper scanner (52) and the lower scanner (53) are respectively fixed to the bottom of the support frame (51) and the top of the fixing rod. The electrostatic removal and dust removal device for the surface of copper-clad laminate also includes an information analysis module. The pressure sensor (48), upper scanner (52) and lower scanner (53) are all electrically connected to the information analysis module. The information analysis module is used to acquire the images captured by the upper scanner (52) and lower scanner (53), identify the proportion of dust in the images, and also acquire the pressure detection data of the pressure sensor (48) to determine the deformation of the copper-clad laminate surface. The information analysis module is also electrically connected to the conveyor belt (12) and cylinder (413) to control them to adjust the transmission speed and actively adapt to the thickness of the copper-clad laminate.

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