TWI834108B - Contact angle measuring machine - Google Patents

Abstract

A contact angle measuring machine includes a machine body, a liquid injection device, a detection platform, a vacuum suction device, a light source device, and a camera device. The liquid injection is disposed on the machine body and movable along the Z-axis direction. The detection platform is disposed on the machine body and movable along the X-axis and the Y-axis direction, so that the liquid injection device drops the liquid drop toward the carrier plate on the detection platform. The vacuum suction device is disposed on the machine body and provides vacuum suction for sucking the carrier plate. The light source device and the camera device are disposed on opposite sides of the machine body. The camera device captures the image of the liquid drop dropping on the carrier plate, and calculates and displays the contact angle of the carrier plate through a display device.

Description

Water drop angle measuring machine

The present invention relates to a measuring device, in particular to a water drop angle measuring machine, which can measure the water drop angle of a carrier board.

The water droplet angle is an important indicator to measure the affinity and hydrophobicity of the object itself. The larger the contact angle between the surface of the object and the water droplets, the higher the hydrophobicity; the smaller the contact angle between the surface of the object and the water droplets, the higher the hydrophilicity.

Because the carrier board is coated, it is necessary to measure the water drop angle to determine the affinity and hydrophobicity of the surface of the carrier board. However, there are many ways to measure the water drop angle. However, no matter what kind of measurement method, there is no specific method for the carrier board. Equipment and instruments for measuring boards.

In order to solve the above problems, the present invention discloses a water drop angle measuring machine, which uses a vacuum suction device to adsorb the carrier plate flatly to the detection platform with vacuum suction, thereby ensuring that the carrier plate is flat so as to measure the water drop angle. measurement and make the measurement more accurate.

In order to achieve the above object, an embodiment of the present invention provides a water drop angle measuring machine, which is used to measure the water drop angle of a carrier plate. The water drop angle measuring machine includes a body, a water liquid injection device, a detection platform, and a vacuum suction device. , light source device and camera device. The water liquid injection device is arranged on the body, and the water liquid injection device can be displaced along a Z-axis direction; the detection platform is arranged on the body, and the detection platform has a placement surface that provides a carrier plate for placement, and the placement surface is provided with a plurality of With a suction hole, the detection platform can be displaced along an X-axis direction and a Y-axis direction perpendicular to the Z-axis direction, so that the detection platform moves to the bottom corresponding to the water injection device, so that the water injection device drips water onto the carrier plate ; The vacuum suction device is arranged on the body, and the gas is connected to the suction hole and provides vacuum suction, so as to be able to adsorb the carrier plate; the light source device is arranged on one side of the body; the camera device is arranged on the other side of the body and corresponds to the light source device, and the camera The device is used to capture images of water droplets falling on a carrier plate.

Thereby, the present invention uses vacuum suction to adsorb the carrier plate to the detection platform to ensure that the carrier plate will not warp and can accurately measure the water droplet angle on the surface of the carrier plate.

Furthermore, the water injection device of the present invention can move along the Z-axis direction, and the detection platform can move along the X-axis direction and the Y-axis direction. Through three-dimensional movement control, water droplets can be dropped on different positions of the carrier plate. Increase measurement convenience.

Exemplary embodiments of the present invention are described in detail below with reference to the accompanying drawings. It is not intended to limit the technical principles of the present invention to the specifically disclosed embodiments, but the scope of the present invention is limited only by the scope of the patent application and covers substitutions, modifications and equivalent.

Please refer to Figures 1 to 5. The present invention is a water drop angle measuring machine 100, which is used to measure the water drop angle on a carrier plate 1. The water drop angle measuring machine 100 includes a body 10, a water droplet angle measuring machine 100 and a water drop angle measuring machine 100. Injection device 20 , a detection platform 30 , a vacuum suction device 40 , a light source device 50 , a camera device 60 , a display device 70 and a control device 80 . Among them, the carrier board 1 is a composite circuit board, a printed circuit board, a copper foil substrate (CCL), etc.

The body 10 includes a base 11, a first side part 12, a second side part 13 and a horizontal frame part 14. The first side part 12 and the second side part 13 are respectively erected on both sides of the base 11. The horizontal frame part 14 is arranged between the first side part 12 and the second side part 13. The water injection device 20 is arranged on the horizontal bracket part 14, the light source device 50 is arranged on the first side part 12, and the camera device 60 is arranged on the second side part 12. The side portion 13 corresponds to the light source device 50 , and the detection platform 30 is provided on the base 11 .

In the embodiment of the present invention, the cross frame part 14 includes a fixed base 141 and a movable base 142 slidably installed on the fixed base 141. The body 10 includes a first driver 15, and the first driver 15 is installed on the movable base 142. When the driver 15 is activated, the movable base 142 can be displaced in the Z-axis direction relative to the fixed base 141 . The first driver 15 includes a motor, a gear, and a screw, so that the movable base 142 can have a sliding relationship relative to the fixed base 141 .

The water liquid injection device 20 is installed on the body 10, and the water liquid injection device 20 is displaceable along the Z-axis direction. In the embodiment of the present invention, the water liquid injection device 20 includes a second driver 21, a slide seat 22, an actuator 23 and an injection part 24. The second driver 21 is provided on the movable seat 142, and the slide seat 22 is fixed on the movable seat 142. The movable seat 142, whereby when the first driver 15 displaces the movable seat 142, the sliding seat 22 also displaces along with the movable seat 142; the actuating part 23 is slidably provided on the movable seat 142, and the injection part 24 is provided on the sliding seat 22. When the two drivers 21 are activated, the actuating part 23 can be displaced along the Z-axis direction and the injection part 24 can inject water liquid. Among them, the second driver 21 includes a motor, a gear, and a screw. The injection part 24 has a pump 241 and a piston 242. The piston 242 is connected to the actuating member 23. When the second driver 21 actuates, the actuating member 23 can be driven to move relative to each other. The seat 142 has a sliding relationship, thereby driving the piston 242 to move relative to the pump 241, so that the water liquid in the pump 241 is ejected.

The detection platform 30 is provided on the machine body 10. The detection platform 30 has a placement surface 31 for placing the carrier plate 1, and the placement surface 31 is provided with a plurality of suction holes 311. The detection platform 30 can be displaced along an X-axis direction and a Y-axis direction perpendicular to the Z-axis direction, so that the detection platform 30 moves to the bottom corresponding to the water injection device 20, so that the water injection device 20 drips water onto the carrier plate 1 liquid, and then detect the water droplet angle on the surface of the carrier plate 1. In the embodiment of the present invention, it further includes a third driver 90 and a first transmission component 91. The third driver 90 is provided on the second side 13. The first transmission component 91 is provided along the X-axis direction and is transmission connected to the second transmission component 91. Between the third driver 90 and the detection platform 30, the third driver 90 is a motor, and the first transmission component 91 includes but is not limited to a combination of belts and pulleys, thereby enabling the detection platform 30 to be displaced along the X-axis direction.

In addition, the detection platform 30 of the present invention has an upper sliding seat 32 and a lower sliding seat 33, and the placement surface 31 is provided at one end of the upper sliding seat 32. The lower seat 33 is slidably mounted on the base 11 along the X-axis direction and moves along with the transmission of the first transmission component 91 . The other end of the upper sliding seat 32 is slidably mounted on the lower seat 33 . The present invention further includes a fourth driver 92 and a second transmission component 93. The fourth driver 92 is a motor, and the second transmission component 93 includes but is not limited to a combination of a belt and a pulley. The fourth driver 92 and the second transmission component 93 are provided between the base 11 and the placement surface 31. The second transmission component 93 is provided along the Y-axis direction and is transmission connected between the fourth driver 92 and the upper sliding seat 32. The upper sliding seat 32 is allowed to displace in the Y-axis direction relative to the lower sliding seat 33 .

The vacuum suction device 40 is disposed on the body 10 , and the gas is connected to the suction hole 311 to provide vacuum suction, so that the carrier plate 1 can be adsorbed. In this way, the carrier plate 1 can be stably adsorbed on the placement surface 31 through this vacuum adsorption method. Even when the carrier plate 1 is slightly warped, the carrier plate 1 can be adsorbed flatly, which is beneficial to subsequent operations. Water drop angle measurement operation. In the embodiment of the present invention, a plurality of vacuum nozzles 34 (as shown in FIGS. 1 and 4 ) are further included. The vacuum nozzles 34 are respectively arranged in gas communication with the suction holes 311 , and each vacuum nozzle 34 It has a first end 341, a second end 342 and an elastic telescopic part 343 between the first end 341 and the second end 342. The first end 341 is respectively arranged in gas communication with the suction hole 311. When the vacuum suction device 40 is in operation, the second end 342 can adsorb the carrier plate 1 (as shown in Figure 5), and in the embodiment of the present invention, when the carrier plate 1 is adsorbed on the detection platform 30, the vacuum nozzle 34 can be retracted into the suction hole 311 so that the carrier plate 1 is flat against the placement surface 31 . Therefore, when the degree of warpage of the carrier plate 1 is large, the distance between the carrier plate 1 and the placement surface 31 is relatively large. At this time, the elastic expansion and contraction portion 343 of the vacuum nozzle 34 can be used as compensation for the distance. The vacuum nozzle 34 is still able to adsorb the carrier plate 1 flatly, so as to overcome the problem that the carrier plate 1 is uneven and difficult to be adsorbed.

The light source device 50 and the camera device 60 are respectively disposed on both sides of the body 10 , and the light source device 50 can project light toward the carrier plate 1 so that the camera device 60 can capture images of water droplets falling on the carrier plate 1 .

The display device 70 is electrically connected to the camera device 60 and is used to calculate the water drop angle of the display carrier 1 based on the image, so as to achieve the purpose of measuring the water drop angle of the carrier board 1 . The display device 70 can be built into the body 10 or externally connected to the body 10 .

In another embodiment of the present invention, the placement surface 31 is recessed with a sensing hole 35, and the sensing hole 35 is provided with a sensing element 36 for sensing whether the carrier board 1 is located on the placement surface 31 (as shown in Figure 4 shown).

The control device 80 is installed on the machine body 10. The control device 80 is electrically connected to the sensing component 36 and the vacuum suction device 40. When the sensing component 36 detects that the carrier plate 1 is located on the placement surface 31, the control device 80 controls The vacuum suction device 40 starts to operate, so that the vacuum suction device 40 causes the vacuum suction nozzle 34 to generate vacuum suction to adsorb the carrier plate 1 on the placement surface 31 . In the embodiment of the present invention, the control device 80 is also electrically connected to the first driver 15, the second driver 21, the third driver 90, the fourth driver 92, the light source device 50, the camera device 60 and the display device 70, and controls all of them. In the operation of the above components, the control device 80 has a setting module 81 and a detection module 82. The setting module 81 can set a preset threshold, and the detection module 82 is used to detect the pressure provided by the vacuum suction device 40. When the suction value of one of the suction holes 311 is different from the preset threshold, the control device 80 controls the vacuum suction device 40 to stop operating. For example, when the suction value of one of the suction holes 311 is less than a preset threshold, it means that there is air leakage between the suction hole 311 , the vacuum nozzle 34 and the carrier plate 1 . As a result, the carrier cannot be removed. The plate 1 is flat and adsorbed on the placement surface 31, so the vacuum suction device 40 is stopped through the control device 80 so that the staff can perform maintenance operations to avoid the problem that the carrier plate 1 cannot be adsorbed flatly on the placement surface 31. Of course, in order to reduce costs, a single vacuum suction device 40 can be connected to all suction holes 311, and the detection module 82 can also directly measure the suction value of the vacuum suction device 40, as long as any single suction hole 311 does not adsorb to the load. board, the suction value detected by the detection module 82 will be abnormal, for example, the suction value will be less than a preset threshold, so that the abnormal state can be discovered and repaired.

In another embodiment of the present invention, the placement surface 31 is recessed with a U-shaped escape groove 37 outside the sensing hole 35, so that when the robot arm is carrying the carrier plate 1, the robot arm can extend into the escape groove 37, so that The robotic arm is convenient for picking up and placing the carrier board 1. However, the shape of the escape groove 37 is not limited in this application, as long as the robot arm can conveniently place the carrier plate 1 .

In another embodiment of the present invention, the first side part 12 has a cavity 121, and the light source device 50 is disposed in the cavity 121. The light source device 50 includes a light-emitting component 51 and a vertical rod 52 disposed along the Z-axis direction. and an adjusting member 53. The light-emitting member 51 is provided on the adjusting member 53. The adjusting member 53 can be selectively positioned on the upright pole 52 and adjusted along the height displacement of the upright pole 52. Among them, the adjusting member 53 includes a clamping base 531 and a screw 532. The clamping base 531 is clamped on the vertical pole 52, and the screw 532 is screwed on the clamping base 531 so that the clamping base 531 can move along the height of the vertical pole 52. Displacement adjustment. Thereby, the staff can adjust the height position of the light-emitting element 51 according to the thickness of the carrier board 1, so as to facilitate the camera device 60 to capture the image of the water droplets falling on the carrier board 1.

Based on the foregoing, the present invention has the following advantages:

1. The present invention uses vacuum suction to adsorb the carrier plate 1 to the detection platform 30 to ensure that the carrier plate 1 will not warp and can accurately measure the water droplet angle on the surface of the carrier plate 1 .

2. The present invention absorbs the carrier plate 1 through the vacuum nozzle 34 with the elastic expansion and contraction portion 343, thereby compensating the distance between the carrier plate 1 and the placement surface 31, so that when a part of the carrier plate 1 is too warped, it can It is adsorbed on the detection platform 30 by the vacuum suction nozzle 34 and maintained in a flat state to facilitate detection of the water droplet angle of the carrier plate 1 .

3. The present invention can perform three-dimensional movement and control to drop water droplets on different positions of the carrier plate 1, thereby increasing the convenience of measurement.

4. Through the setting of the detection module 82, it can be confirmed whether the carrier plate 1 is completely adsorbed and flatly attached to the detection platform 30, thereby reducing the problem of inaccurate values of the detected water droplet angle.

5. Through the combination of the sensing element 36 and the detection module 82, on the one hand, it is necessary to confirm that the carrier plate 1 has indeed entered the detection platform 30, and on the other hand, it is necessary to confirm that the carrier plate 1 is flat and adsorbed on the detection platform 30. Avoid detection errors in automatic detection.

Although the present invention has been described with a preferred embodiment, those skilled in the art can make various modifications without departing from the spirit and scope of the present invention. The aforementioned embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. All modifications or changes that do not violate the spirit of the present invention fall within the scope of the patent application of the present invention.

100: Water drop angle measuring machine 10: Machine body 11: Base 12: First side 121: chamber 14: Horizontal frame part 141: Fixed seat 142: Movable seat 15: First drive 20: Water injection device 21: Second drive 22: Slide 23: Motor parts 24:Injection parts 241:Pump 242:Piston 30:Detection platform 31: Placement surface 311: Suction hole 32: Upper sliding seat 33: Lowering seat 34: Vacuum nozzle 341: First end 342: Second end 343: Elastic expansion and contraction part 35: Sensing hole 36: Sensing piece 37: Avoidance trough 40: Vacuum suction device 50: Light source device 51: Light-emitting parts 52: Vertical pole 531: Clamp seat                               532: Screws 60:Camera device 70:Display device 80: Control device                                                                                                     81: Setting module 82: Detection module                     90: Third drive 91: First transmission assembly 92: Fourth drive 93: Second transmission assembly 1: Carrier plate X, Y, Z: axis

[Fig. 1] is a schematic three-dimensional appearance diagram of the water droplet angle measuring machine of the present invention. [Fig. 2] is a block diagram of the water drop angle measuring machine of the present invention. [Fig. 3] is a schematic diagram of the front side of the water droplet angle measuring machine of the present invention. [Figure 4] is a schematic diagram of the water drop angle measuring machine adsorbing the carrier plate according to the present invention, showing that the carrier plate is placed on the placement surface of the detection platform and has not yet been adsorbed. [Figure 5] is a schematic diagram of the water drop angle measuring machine adsorbing the carrier plate according to the present invention, showing that the carrier plate is placed on the placement surface of the detection platform and is adsorbed by vacuum suction.

100: Water drop angle measuring machine

10: Body

11: Base

12:First side

13:Second side

14:Horizontal frame

141: Fixed seat

142: Movable seat

15: First drive

20:Water liquid injection device

21: Second drive

22:Sliding seat

23:Actuating parts

24:Injection parts

30:Detection platform

31: Placement surface

311:Suction hole

32: Upper slide seat

33: Lower seat

34: Vacuum nozzle

35: Sensing hole

37: Avoidance slot

50:Light source device

60:Camera device

91:First transmission component

92: Fourth Drive

93: Second transmission assembly

X, Y, Z: axis

Claims (11)

A water drop angle measuring machine is used to measure the water drop angle of a carrier plate. The water drop angle measuring machine includes: a body; a water liquid injection device, which is provided on the body, and the water liquid injection device can Displace along a Z-axis direction; a detection platform is provided on the machine body. The detection platform has a placement surface for placing the carrier plate. The placement surface is provided with a plurality of suction holes. The detection platform The platform can be displaced along an X-axis direction and a Y-axis direction perpendicular to the Z-axis direction, so that the detection platform moves to the bottom corresponding to the water injection device, so that the water injection device drips water onto the carrier plate ; A vacuum suction device is provided on the body, and gas is connected to the suction holes and provides vacuum suction to be able to adsorb the carrier plate; a light source device is provided on one side of the body; a camera device is provided On the other side of the body and corresponding to the light source device, the camera device is used to capture images of water droplets falling on the carrier plate; and a plurality of vacuum nozzles, which are respectively arranged in gas communication. These suction holes, and each vacuum suction nozzle has a first end, a second end and an elastic expansion and contraction part between the first end and the second end, and the first ends are in gas communication respectively. Disposed on the suction holes, the second ends can adsorb the carrier plate. When the carrier plate is adsorbed on the detection platform, the vacuum nozzles can retract into the suction holes. The water drop angle measuring machine of claim 1, wherein the placement surface is provided with a sensing hole, and the sensing hole is provided with a sensing component for sensing whether the carrier plate is located on the placement surface. The water drop angle measuring machine as claimed in claim 2, wherein the placement surface is concavely provided with an escape groove outside the sensing hole. The water drop angle measuring machine as described in claim 2 further includes a control device disposed on the body, the control device is electrically connected to the sensing component and the vacuum suction device, when the sensing component detects the load When the board is on the placement surface, the control device controls the vacuum suction device to start operating. The water drop angle measuring machine as described in claim 4, wherein the control device has a setting module and a detection module, the setting module can set a preset threshold, and the detection module is used to detect The vacuum suction device provides a suction value of the suction holes. When the suction value of one of the suction holes is different from the preset threshold, the control device controls the vacuum suction device to stop operating; the camera device is electrically connected A display device used to calculate and display the water drop angle of the carrier plate. The water drop angle measuring machine as claimed in claim 1, wherein the body includes a base, a first side, a second side and a transverse frame, and the first side and the second side are respectively Standing on both sides of the base, the cross frame is provided between the first side and the second side, the water injection device is provided on the cross frame, and the light source device is provided on the first side part, the camera device is provided on the second side, and the detection platform is provided on the base. The water drop angle measuring machine as claimed in claim 6, wherein the first side has a chamber, the light source device is disposed in the chamber, the light source device includes a light-emitting element, a light source disposed along the Z-axis direction A vertical pole and an adjusting member, the light-emitting member is provided on the adjusting member, and the adjusting member can be selectively positioned on the vertical pole and adjusted along the height displacement of the vertical pole. The water drop angle measuring machine as described in claim 7, wherein the adjusting member includes a clamp base and a screw. The clamp base is clamped on the vertical rod, and the screw is screwed on the clamp base, so that The clamp base can be adjusted along the height displacement of the vertical pole. As for the water drop angle measuring machine described in claim 6, the horizontal frame part includes a fixed base and a movable base slidably installed on the fixed base, the body includes a first driver, and the first driver is located on the movable base , when the first driver is activated, the movable seat can be displaced along the Z-axis direction relative to the fixed seat; the water liquid injection device includes a second driver, a sliding seat, an actuating part and an injection part. The second driver It is provided on the movable seat, the slide seat is fixed on the movable seat, the actuator is slidably provided on the movable seat, the injection part is provided on the slide seat, and when the second driver is activated, the actuator can be moved along the Z-axis The injection part is displaced in the direction and causes the injection part to eject water liquid. The water drop angle measuring machine according to claim 9, further comprising a third driver and a first transmission component, the third driver is provided on the second side, and the first transmission component is provided along the X-axis direction. and is drivingly connected between the third driver and the detection platform. The water drop angle measuring machine as described in claim 10 further includes a fourth driver and a second transmission component, the detection platform has an upper sliding seat and a lower sliding seat, and the placement surface is provided at one end of the upper sliding seat. , the lower seat is slidably mounted on the base along the The component is disposed between the base and the placement surface. The second transmission component is disposed along the Y-axis direction and is drivingly connected between the fourth driver and the upper sliding seat so that the upper sliding seat can slide downward relative to the The seat is displaced in the Y-axis direction.

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