Roller cleaning structure, cleaning device and cleaning method

Abstract

This application proposes a roller cleaning structure, which includes a shaft and two rollers respectively disposed at both ends of the shaft. The diameter of the shaft is smaller than the diameter of each roller. At least one roller has a plurality of first through holes, which are formed radially along the roller. The roller cleaning structure also includes a sensor disposed within the first through hole, which is used to sense light passing through the first through hole. The roller cleaning structure provided by this application can improve the yield of target objects. This application also provides a cleaning device including the roller cleaning structure and a cleaning method for cleaning target objects using the cleaning device.

Description

Technical Field

[0001] This application relates to the field of cleaning technology, and in particular to a roller cleaning structure, a cleaning device, and a cleaning method for cleaning a target object using the cleaning device. Background Technology

[0002] During the manufacturing process of circuit boards, epoxy resin adhesive (ABF) needs to be applied to the copper surface of the motherboard, and a cover film is then laminated onto the ABF adhesive. However, due to the fluidity of ABF adhesive, it overflows when the cover film is laminated onto it, resulting in an adhesive overflow problem. Existing cleaning equipment tends to cause pressure marks or scratches to the copper surface when cleaning the overflow adhesive from the board edges, leading to a low yield rate for the cleaned circuit boards. Summary of the Invention

[0003] In view of this, this application provides a roller cleaning structure that can improve the yield of target objects.

[0004] This application also provides a cleaning device including the roller cleaning structure.

[0005] This application also provides a cleaning method for cleaning a target object using the cleaning device.

[0006] One embodiment of this application provides a roller cleaning structure, which includes a shaft and two rollers respectively disposed at both ends of the shaft. The diameter of the shaft is smaller than the diameter of each roller. At least one roller has a plurality of first through holes, which are opened along the radial direction of the roller. The roller cleaning structure also includes a sensor disposed in the first through hole, which is used to sense light passing through the first through hole.

[0007] An embodiment of this application also provides a cleaning device for cleaning a target object, the target object including a first area and a second area, the second area being located at the edge of the target object and surrounding the first area, the cleaning device including a roller cleaning structure and a controller, the shaft corresponding to the first area, the roller being used to roll on the second area and clean the second area, the second area including a plurality of second through holes, the sensor being used to sense light entering the first through hole through the second through hole, and the controller being used to determine whether the roller has shifted relative to the second area based on the sensing result of the sensor.

[0008] An embodiment of this application also provides a cleaning method for cleaning a target object using the cleaning device. The second area includes a first plate surface, a second plate surface, a third plate surface, and a fourth plate surface connected in sequence. The first plate surface and the third plate surface are opposite to each other, and the second plate surface and the fourth plate surface are opposite to each other. The cleaning method includes the following steps:

[0009] The roller cleaning structure is driven to clean the first plate surface and the third plate surface;

[0010] Rotate the target object; and

[0011] The roller cleaning structure is driven to clean the second plate surface and the fourth plate surface.

[0012] The roller cleaning structure provided in this application is I-shaped, with the diameter of the shaft being smaller than the diameter of each roller, and the shaft corresponding to the first area. This prevents the roller cleaning structure from damaging or scratching the first area when cleaning the second area, thereby improving the yield of the cleaned target object. Furthermore, the roller cleaning structure provided in this application also includes a sensor, which improves the cleaning accuracy of the roller cleaning structure. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of a roller cleaning structure provided in one embodiment of this application.

[0014] Figure 2 yes Figure 1 The side view of the roller cleaning structure shown.

[0015] Figure 3 This is a schematic diagram of the structure of the target object provided in an embodiment of this application.

[0016] Figure 4 This is a modular composition diagram of a cleaning device provided in an embodiment of this application.

[0017] Figures 5a to 5d This is a flowchart illustrating the cleaning device for cleaning a target object according to an embodiment of this application.

[0018] Explanation of main component symbols

[0019] Roller cleaning structure 100

[0020] Shaft 10

[0021] 20 rollers

[0022] First through hole 21

[0023] Roller section 22

[0024] Sensor 30

[0025] Adjustment component 40

[0026] Fastener 50

[0027] Bearing 60

[0028] Target object 200

[0029] Glue Overflow 201

[0030] Circuit board 210

[0031] Second District 211

[0032] First panel 2111

[0033] Second panel 2112

[0034] Third panel 2113

[0035] Fourth panel 2114

[0036] Second through hole 212

[0037] Adhesive layer 220

[0038] Covering membrane 230

[0039] Cleaning device 300

[0040] Rotary platform 310

[0041] Power unit 320

[0042] Light emitter 330

[0043] Controller 340

[0044] The following detailed description, in conjunction with the accompanying drawings, will further illustrate this application. Detailed Implementation

[0045] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0046] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0047] To further illustrate the technical means and effects adopted by this application in achieving its intended purpose, the following detailed description of this application is provided in conjunction with the accompanying drawings and preferred embodiments.

[0048] See also Figure 1 and Figure 2 One embodiment of this application provides a roller cleaning structure 100, including a shaft 10, two rollers 20, a sensor 30, an adjusting member 40, a fixing member 50, and a bearing 60.

[0049] See also Figure 3 The roller cleaning structure 100 is used to clean excess adhesive 201 from the surface of the target object 200. In this embodiment, the target object 200 may be a circuit board.

[0050] In one embodiment, the target object 200 includes a circuit board 210, an adhesive layer 220, and a cover film 230 stacked sequentially. The circuit board 210 is rectangular. The circuit board 210 includes a first region (not shown) and a second region 211 connected to the first region. The first region is rectangular, and both the adhesive layer 220 and the cover film 230 are disposed on the first region. The second region 211 is located at the edge of the circuit board 210 and surrounds the first region. In this embodiment, the adhesive layer 220 is made of epoxy resin (ABF adhesive). The cover film 230 is made of polyimide.

[0051] In one embodiment, the second region 211 includes a first plate surface 2111, a second plate surface 2112, a third plate surface 2113, and a fourth plate surface 2114 connected sequentially. The first plate surface 2111 and the third plate surface 2113 are opposite to each other, and the second plate surface 2112 and the fourth plate surface 2114 are opposite to each other. In this embodiment, the first plate surface 2111 and the third plate surface 2113 are parallel, and the second plate surface 2112 and the fourth plate surface 2114 are parallel.

[0052] The second region 211 is provided with a plurality of second through holes 212, and each second through hole 212 penetrates the second region 211 along the stacking direction of the circuit motherboard 210, the adhesive layer 220 and the cover film 230. Specifically, the first board surface 2111, the second board surface 2112, the third board surface 2113 and the fourth board surface 2114 are all provided with second through holes 212. The second region 211 has overflow adhesive 201. The overflow adhesive 201 may be formed by the adhesive layer 220 overflowing outward after the cover film 230 is pressed. Specifically, the first board surface 2111, the second board surface 2112, the third board surface 2113 and the fourth board surface 2114 may all have the overflow adhesive 201.

[0053] Please refer to it again. Figure 1 The roller cleaning structure 100 is roughly I-shaped.

[0054] Two rollers 20 are respectively disposed at both ends of the shaft 10. The diameter of the shaft 10 is smaller than the diameter of each roller 20. The two rollers 20 are used to clean the excess adhesive 201 on the second area 211. When cleaning the excess adhesive 201, the shaft 10 corresponds to the first area, and the two rollers 20 correspond to the second area 211, rolling on the second area 211 to clean it. In one embodiment, the rollers 20 may be elastic structures. Specifically, the rollers 20 are made of emery cotton and foamed resin, with the emery cotton dispersed in the foamed resin. The elastic structure provides a buffering force for subsequent cleaning of the excess adhesive 201 and provides some protection to the adhesive layer 220 and the sides of the covering film 230.

[0055] Please refer to it again. Figure 2 Each roller 20 has a first through hole 21. The first through hole 21 is formed along the radial direction of the roller 20. In this embodiment, there are four first through holes 21. When the roller 20 cleans the second area 211, each first through hole 21 and each second through hole 212 correspond to each other. In one embodiment, the four first through holes 21 divide each roller 20 into four independent roller portions 22. In one embodiment, there are four sensors 30. The four sensors 30 are respectively disposed within the four first through holes 21. In this embodiment, all four sensors 30 are infrared sensors. The sensors 30 are used to sense light passing through the first through holes 21.

[0056] In this embodiment, there are four adjusting members 40. Specifically, the four adjusting members 40 are respectively inserted into the four roller portions 22, and one end of each of the four adjusting members 40 is fixed to the shaft 10, while the other end of each of the four adjusting members 40 extends out of the roller portion 22. Each of the four adjusting members 40 is an adjusting rod, and a portion of the surface of each of the four adjusting rods is provided with external threads (not shown). The four roller portions 22 can move back and forth along the directions of the four adjusting members 40 to adjust the diameter of the rollers 20.

[0057] In this embodiment, there are four fixing members 50. Specifically, the four fixing members 50 are respectively fixed to the end of the adjusting member 40 away from the shaft 10. Each fixing member 50 has an internal thread (not shown). In one embodiment, the fixing member 50 may be a threaded disc. The internal thread and the external thread engage to fix the roller 20 to the end of the adjusting member 40 away from the shaft 10.

[0058] In this embodiment, there are four bearings 60. Specifically, the four bearings 60 are located in the four roller portions 22.

[0059] See also Figure 4 An embodiment of this application also provides a cleaning device 300, which includes the roller cleaning structure 100, a rotating platform 310, a power device 320, a light emitter 330, and a controller 340.

[0060] The cleaning device 300 is used to clean the excess adhesive 201 on the surface of the target object 200.

[0061] The rotating platform 310 is used to store the target object 200, and the rotating platform 310 is rotatable to rotate the target object 200 on the rotating platform 310.

[0062] The power unit 320 is used to drive the roller cleaning structure 100 to make the roller 20 roll in the second zone 211. Specifically, the power unit 320 drives the bearing 60 to make the roller 20 roll in the second zone 211.

[0063] The light emitter 330 is disposed on the rotating platform 310 and can rotate with the rotating platform 310. The light emitter 330 is used to emit light. In this embodiment, the light emitter 330 is used to emit infrared light.

[0064] The controller 340 is used to determine whether the roller 20 has shifted relative to the second zone 211 based on the sensing result of the sensor 30.

[0065] An embodiment of this application also provides a cleaning method for cleaning the target object 200 using the cleaning device 300, comprising the following steps:

[0066] See also Figure 5a In step S11, the roller cleaning structure 100 is driven to clean the first plate surface 2111 and the third plate surface 2113.

[0067] Specifically, the target object 200 is placed on the rotating platform 310, and the roller cleaning structure 100 is driven by the power device 320 so that the two rollers 20 roll on the first plate surface 2111 and the third plate surface 2113 respectively to remove the excess adhesive 201 on the first plate surface 2111 and the third plate surface 2113, thereby cleaning the first plate surface 2111 and the third plate surface 2113.

[0068] When the two rollers 20 roll on the first plate surface 2111 and the third plate surface 2113 respectively, the light emitter 330 emits infrared light, which passes sequentially through the second through hole 212 and the first through hole 21. At this time, the sensor 30 senses the infrared light transmitted through the second through hole 212 and the first through hole 21, and the controller 340 determines whether the rollers 20 have shifted relative to the first plate surface 2111 and the third plate surface 2113 based on the sensing result of the sensor 30. If no shift has occurred, cleaning of the first plate surface 2111 and the third plate surface 2113 continues; if a shift has occurred, the controller 340 controls the rollers 20 to adjust their direction so that the two rollers 20 roll on the first plate surface 2111 and the third plate surface 2113 respectively.

[0069] See also Figure 5b Step S12, rotate the target object 200.

[0070] Specifically, by rotating the rotating platform 310, the target object 200 on the rotating platform 310 is rotated by 90 degrees, so that the two rollers 20 correspond to the second plate surface 2112 and the fourth plate surface 2114 respectively.

[0071] See also Figure 5c In step S13, the roller cleaning structure 100 is driven to clean the second plate surface 2112 and the fourth plate surface 2114.

[0072] Specifically, after rotating the target object 200 by 90 degrees, the roller cleaning structure 100 is driven again by the power device 320 so that the two rollers 20 roll on the second plate surface 2112 and the fourth plate surface 2114 respectively, in order to remove the excess adhesive 201 on the second plate surface 2112 and the fourth plate surface 2114, thereby cleaning the second plate surface 2112 and the fourth plate surface 2114.

[0073] When the two rollers 20 roll on the second plate surface 2112 and the fourth plate surface 2114 respectively, the light emitter 330 emits infrared light, which passes sequentially through the second through hole 212 and the first through hole 21. At this time, the sensor 30 senses the infrared light transmitted through the second through hole 212 and the first through hole 21. The controller 340 determines, based on the sensing result of the sensor 30, whether the rollers 20 have shifted relative to the second plate surface 2112 and the fourth plate surface 2114. If no shift has occurred, cleaning of the second plate surface 2112 and the fourth plate surface 2114 continues; if a shift has occurred, the controller 340 controls the rollers 20 to adjust their direction so that the two rollers 20 roll on the second plate surface 2112 and the fourth plate surface 2114 respectively.

[0074] See also Figure 5d After cleaning, the target object 200 is obtained.

[0075] The roller cleaning structure 100 provided in this application is I-shaped, and the diameter of the shaft 10 is smaller than the diameter of each roller 20. The shaft 10 corresponds to the first area, so that the roller cleaning structure 100 avoids crushing or scratching the first area when cleaning the second area 211, thereby improving the yield of the cleaned target object 200.

[0076] Secondly, the roller cleaning structure 100 provided in this application is also provided with a sensor 30, which improves the cleaning accuracy of the roller cleaning structure 100.

[0077] Finally, the cleaning device 300 described in this application has a high degree of mechanization and automation, thereby reducing labor intensity and saving production costs.

[0078] The above description is merely an optimized implementation of this application, but in actual applications, it should not be limited to this implementation.

Claims

1. A roller cleaning structure, characterized in that, The roller cleaning structure includes a shaft and two rollers respectively disposed at both ends of the shaft. The diameter of the shaft is smaller than the diameter of each roller. At least one roller has a plurality of first through holes, which are opened along the radial direction of the roller. The roller cleaning structure also includes a sensor disposed in the first through hole, which is used to sense light passing through the first through hole.

2. The roller cleaning structure as described in claim 1, characterized in that, The first through holes divide the roller into multiple independent roller sections. The roller cleaning structure also includes an adjusting member, one end of which is fixed to the shaft and the other end of which extends out of the roller. Each roller section can move back and forth along the extension direction of the adjusting member to adjust the diameter of the roller.

3. The roller cleaning structure as described in claim 2, characterized in that, The roller cleaning structure also includes a fixing member, which is fixed to the end of the adjusting member away from the shaft.

4. The roller cleaning structure as described in claim 1, characterized in that, The roller cleaning structure also includes a bearing located within the roller.

5. The roller cleaning structure as described in claim 1, characterized in that, The roller has an elastic structure, and the roller is made of emery cotton and foamed resin, with the emery cotton dispersed in the foamed resin.

6. A cleaning device for cleaning a target object, the target object comprising a first area and a second area, the second area being located at the edge of the target object and surrounding the first area, characterized in that, The cleaning device includes a roller cleaning structure and a controller as described in any one of claims 1 to 5, wherein the shaft corresponds to the first area, the roller is used to roll on the second area and clean the second area, the second area includes a plurality of second through holes, the sensor is used to sense light entering the first through hole through the second through hole, and the controller is used to determine whether the roller has shifted relative to the second area based on the sensing result of the sensor.

7. The cleaning device as claimed in claim 6, characterized in that, The cleaning device also includes a light emitter for emitting light toward the second through-hole.

8. The cleaning device as claimed in claim 7, characterized in that, It also includes a rotating platform, on which the light emitter is disposed. The rotating platform is used to place the target object, and the rotating platform is rotatable to rotate the target object and the light emitter on the rotating platform.

9. The cleaning device as claimed in claim 6, characterized in that, It also includes a power unit for driving the roller to roll in the second zone.

10. A cleaning method for cleaning a target object using the cleaning apparatus as described in any one of claims 6 to 9, wherein the second region comprises a first plate surface, a second plate surface, a third plate surface, and a fourth plate surface connected in sequence, the first plate surface and the third plate surface facing each other, the second plate surface and the fourth plate surface facing each other, characterized in that, The cleaning method includes the following steps: The roller cleaning structure is driven to clean the first plate surface and the third plate surface; Rotate the target object; and The roller cleaning structure is driven to clean the second plate surface and the fourth plate surface.

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