A fully automatic overall tilt contact angle tester

Abstract

The present invention discloses a fully automatic integral tilting contact angle tester, which belongs to the field of contact angle test technology, and includes a supporting device, on which a testing device and a balancing device are arranged, wherein the testing device is used to test the contact angle formed between the test piece and the liquid, and the balancing device is used to adjust the horizontal state of the supporting device. The balancing device arranged in the present invention can automatically adjust the supporting device to a horizontal state, thereby ensuring the accuracy of the test; the testing device can automatically push out the liquid to be tested and place the liquid to be tested on the test piece, and cooperate with the toggle lever to toggle the rotating frame to test the contact angle of the liquid and the test piece under different tilt conditions, with a wide test range and high test accuracy; the height of the placement mechanism can be adjusted to match the position of the test piece with that of the high-speed camera, thereby improving the test accuracy, and realize the dripping of the liquid, the descent of the dropper, and the toggle of the toggle lever through a power source, with a high degree of automation and good continuity.

Description

Technical Field

[0001] The invention relates to the technical field of contact angle testing, in particular to a full-automatic integral tilting contact angle testing instrument. Background Art

[0002] The contact angle refers to the angle formed at the intersection of solid, liquid and gas when a drop of liquid is dropped on a horizontal plane. The contact angle tester uses computer multimedia technology to combine the optical system with a high-speed camera, so that the image of the droplet can be clearly displayed on the computer screen. The contact angle test is not limited to the static state of the liquid on the plane. The contact angle of the droplet in the suspended state and the tilted state is equally important. The tester with a tilt function has the ability to test multiple states. The contact angle tester in the prior art is usually unable to measure the contact angle in the tilted state, and it is impossible to replace the test liquid, and it is impossible to automatically test the contact angle under different tilt conditions, and it is impossible to squeeze the liquid onto the test piece automatically without splashing. Summary of the invention

[0003] In view of the above technical problems, the technical solution adopted by the present invention is: a fully automatic integral tilting contact angle testing instrument, including a supporting device, the supporting device including a base frame, the supporting device is provided with a testing device and a balancing device, the testing device includes a rotating rod, the rotating rod is rotatably mounted on the base frame, the testing device is used to test the contact angle formed by the test piece and the liquid, the balancing device includes a bottom slider, the bottom slider is slidably mounted on the base frame, and the balancing device is used to adjust the horizontal state of the supporting device.

[0004] Furthermore, the supporting device includes a driving motor fixedly mounted on the base frame, a motor gear is fixedly mounted on the motor shaft of the driving motor, a vertical gear shaft is rotatably mounted on the base frame, a lower transmission wheel, an intermediate gear and an upper gear are fixedly mounted on the vertical gear shaft, the motor gear is meshed with the intermediate gear, three electronic levels are fixedly mounted on the base frame, and four internal threaded sleeves are fixedly mounted on the base frame.

[0005] Furthermore, a toggle mechanism is provided on the base frame, and the toggle mechanism includes a toggle transmission wheel rotatably mounted on the base frame, a toggle rod is fixedly mounted on the toggle transmission wheel, and a lower transmission belt is wound around the toggle transmission wheel and the lower transmission wheel.

[0006] The driving motor rotates to drive the motor gear to rotate, which drives the vertical gear shaft, the lower transmission wheel and the upper gear to rotate through the intermediate gear, and the lower transmission wheel drives the toggle transmission wheel and the toggle rod to rotate through the lower transmission belt.

[0007] Furthermore, the testing device includes a rotating frame fixedly mounted on a rotating rod, a lamp holder fixedly mounted on the rotating frame, a headlamp fixedly mounted on the lamp holder, the lamp holder is rotatably mounted on a base frame, a supporting seat fixedly mounted on the rotating frame, a high-speed camera fixedly mounted on the supporting seat, a lens fixedly mounted on the rotating frame, and the lens is located in front of the headlamp.

[0008] Furthermore, an extension rod is fixedly installed on the rotating frame, an upper gear shaft is rotatably installed on the extension rod, an upper transmission wheel and a lower docking gear are fixedly installed on the upper gear shaft, a cam is rotatably installed on the extension rod, a side bevel gear is fixedly installed on the cam, an intermediate wheel is rotatably installed on the rotating frame, a lower bevel gear is fixedly installed on the intermediate wheel, the lower bevel gear is meshed with the side bevel gear, an outer gear is rotatably installed on the rotating frame, an upper transmission belt is wrapped around the outer gear, the intermediate wheel and the upper transmission wheel, and the lower docking gear is meshed with the upper gear.

[0009] Furthermore, a placing mechanism is provided on the rotating frame, and the placing mechanism includes a lifting cylinder fixedly installed on the rotating frame, a lifting frame is slidably installed on the lifting cylinder, a placing plate and an adjusting threaded column are fixedly installed on the lifting frame, an adjusting knob is rotatably installed on the lifting cylinder, an internal thread is provided on the inner wall of the adjusting knob, a threaded transmission is formed between the adjusting knob and the adjusting threaded column, and four spring clips are fixedly installed on the placing plate.

[0010] Furthermore, the rotating frame is provided with a dripping mechanism, and the dripping mechanism includes a lifting slide slidably mounted on the rotating frame, an upper spring seat is fixedly mounted on the lifting slide, a lifting spring is arranged between the lifting slide and the rotating frame, a lower push column is fixedly mounted on the lifting slide, the lower push column cooperates with a cam, a dropper is fixedly mounted on the lifting slide, a valve tube is fixedly mounted on the dropper, a liquid inlet pipe is fixedly mounted on the valve tube, the liquid inlet pipe is connected to an external liquid inlet pipe, an outer ring of a torsion coil spring is fixedly mounted on the upper spring seat, a push rod gear is fixedly mounted on the inner ring of the torsion coil spring, the push rod gear is meshed with the external gear, a threaded rod is fixedly mounted on the push rod gear, an internal thread is arranged at the upper pipe mouth of the dropper, the threaded rod and the dropper form a threaded transmission, a lower push block is fixedly mounted on the threaded rod, and the lower push block slides and rotates in the dropper.

[0011] Furthermore, a drip hole is provided in the dropper, a one-way plate is slidably installed in the dropper, a compression spring is provided between the one-way plate and the dropper, and in an initial state, the one-way plate closes the drip hole, a liquid inlet hole is provided in the valve tube, a side one-way plate is slidably installed in the valve tube, a side compression spring is provided between the side one-way plate and the valve tube, and in an initial state, the side one-way plate closes the liquid inlet hole.

[0012] Place the material to be tested on the placement plate, clamp the material with the spring clip, and manually turn the adjusting knob. Under the action of the adjusting thread column and the adjusting knob thread, the lifting frame and the placement plate can be driven to rise and fall along the lifting cylinder, thereby adjusting the height of the placement plate so that the height of the material to be tested matches the height of the high-speed camera.

[0013] The dropper is filled with liquid for testing. The liquid is separated in the upper part by a one-way piece. The rotation of the upper gear drives the lower docking gear, the upper gear shaft and the upper transmission wheel to rotate, and the lower bevel gear and the outer gear are driven to rotate through the upper transmission belt. The rotation of the outer gear drives the push rod gear to rotate, and the rotation of the push rod gear drives the threaded rod to rotate. The torsion ring spring is twisted, and the threaded rod begins to spirally descend under the action of the inner thread of the dropper, thereby driving the lower push block and the push rod gear to spirally descend. The lower push block descends to push the liquid downward, and the liquid will push the one-way piece. The compression spring is compressed, so that the one-way piece no longer closes the drip hole, and the liquid flows to the bottom of the dropper through the drip hole. At the same time, the rotation of the middle wheel will drive the lower bevel gear to rotate, thereby driving the side bevel gear and the cam to rotate, thereby driving the lower push column and the lifting slide to descend, and then driving the dropper to descend. The lifting spring is compressed, so that the liquid from the dropper The dripping liquid contacts the material to be tested and places the liquid on the material. At the same time, the toggle rod begins to contact the rotating frame and pushes the rotating frame to rotate. At the same time, the push rod gear is disengaged from the outer gear, and the torsion ring spring rebounds, causing the push rod gear and the lower push block to spirally rise and reset. The compression spring rebounds, and the one-way piece closes the drip hole again. At the same time, the rise of the lower push block will pull the side one-way piece to slide inward, and the side pressure spring is compressed. External liquid enters the dropper through the liquid inlet pipe and the valve pipe. When the lower push block returns to its initial position, the side pressure spring rebounds, causing the side one-way piece to close. When the torsion ring spring rebounds, since the toggle rod has begun to push the rotating frame to rotate, the upper gear has disengaged from the lower docking gear, and the outer gear is in a free state, which will not affect the reset of the push rod gear and the cam, and the rebound of the lifting spring drives the lifting slide to reset.

[0014] The light is irradiated onto the material and liquid to be tested through the lamp and lens, and the rotating frame is driven to rotate in coordination with the toggle lever, and the contact angle formed between the liquid and the material to be tested is detected by a high-speed camera.

[0015] Furthermore, the balancing device includes an inner slide slidably installed in the bottom slider, an inner motor is fixedly installed in the inner slide, an inner transmission wheel is fixedly installed on the motor shaft of the inner motor, two docking gears are rotatably installed on the inner slide, an outer transmission wheel is fixedly installed on the docking gears, a bottom transmission belt is wrapped around the inner transmission wheel and the two outer transmission wheels, a slide spring is arranged between the inner slide and the bottom slider, and the inner motor is electrically connected to the electronic level.

[0016] Furthermore, an internally threaded column is installed in the internally threaded sleeve through threaded rotation, the internally threaded column and the internally threaded sleeve form a threaded transmission, and an adjusting gear and a support leg are fixedly installed on the internally threaded column.

[0017] Use the electronic level on the chassis to observe and monitor whether the chassis is level.

[0018] When the chassis is uneven, the bottom sliding block will tilt and slide toward the lower side of the chassis. At the same time, the inner slide also slides toward the low internal threaded sleeve, so that the docking gear engages with the adjusting gear at the lowest point of the internal threaded sleeve. Then the inner motor rotates to drive the inner transmission wheel to rotate, and the outer transmission wheel and the docking gear are driven to rotate through the bottom transmission belt, thereby driving the adjusting gear at the lowest point of the internal threaded sleeve to rotate, thereby driving the internal threaded column and the support leg to rotate. Under the action of the internal thread of the internal threaded sleeve, the support leg is raised or lowered, thereby leveling the chassis. When the chassis is leveled, the slide spring drives the inner slide to reset, so that the docking gear is disengaged from the adjusting gear. The elastic force of the slide spring is extremely small, and it only plays the role of resetting the inner slide when the chassis is horizontal.

[0019] Compared with the prior art, the present invention has the following advantages: (1) the balancing device provided in the present invention can automatically adjust the supporting device to a horizontal state when the electronic level detects that the supporting device is not horizontal, thereby ensuring the accuracy of the test; (2) the testing device provided in the present invention can automatically push out the liquid to be tested and place the liquid to be tested directly on the object to be tested, thereby reducing liquid splashing, and at the same time cooperate with the toggle lever to toggle the rotating frame to test the contact angle between the liquid and the object to be tested under different tilt conditions, thereby widening the test range and achieving high test accuracy; (3) the height of the placement mechanism provided in the present invention can be adjusted so that the placed object to be tested matches the position of the high-speed camera, thereby improving the test accuracy, and the dripping of the liquid, the lowering of the dropper, and the toggle of the toggle lever are achieved through a power source, thereby achieving a high degree of automation and good continuity. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0021] Figure 2 It is a schematic diagram of the structure of the supporting device of the present invention.

[0022] Figure 3 The structure of the test device of the present invention is shown in FIG. Figure 1 .

[0023] Figure 4 The structure of the test device of the present invention is shown in FIG. Figure 2 .

[0024] Figure 5 It is a schematic diagram of the placement mechanism structure of the present invention.

[0025] Figure 6Schematic diagram of the structure of the dripping mechanism of the present invention Figure 1 .

[0026] Figure 7 Schematic diagram of the structure of the dripping mechanism of the present invention Figure 2 .

[0027] Figure 8 Schematic diagram of the structure of the dripping mechanism of the present invention Figure 3 .

[0028] Fig. 9 The structure of the balancing device of the present invention is shown in FIG. Figure 1 .

[0029] Fig.10 The structure of the balancing device of the present invention is shown in FIG. Figure 2 .

[0030] Fig.11 The structure of the balancing device of the present invention is shown in FIG. Figure 3 .

[0031] Figure numbers: 101-base frame; 102-electronic level; 103-internal thread sleeve; 104-drive motor; 105-motor gear; 106-vertical gear shaft; 107-lower transmission wheel; 108-intermediate gear; 109-upper gear; 110-lower transmission belt; 111-shift transmission wheel; 112-shift lever; 201-rotating lever; 202-rotating frame; 203-high-speed camera; 204-light stand; 205-light; 206-lens; 207-lifting cylinder; 208-lifting frame; 209-adjusting knob; 210-spring clip; 211-placement plate; 212-extending rod; 213-upper gear shaft; 214-lower docking gear; 215-upper transmission wheel; 216-upper transmission belt; 217-intermediate wheel; 218-lower bevel gear; 219-side bevel gear; 2 20-cam; 221-external gear; 222-lifting slide; 223-lifting spring; 224-drip tube; 225-liquid inlet pipe; 226-push rod gear; 227-torsion coil spring; 228-threaded rod; 229-valve tube; 230-push block; 231-one-way plate; 232-compression spring; 233-side one-way plate; 234-side pressure spring; 235-drip hole; 236-liquid inlet hole; 237-upper spring seat; 238-push column; 239-adjusting threaded column; 240-support seat; 301-bottom slider; 302-support leg; 303-adjusting gear; 304-inner slide; 305-slide spring; 306-inner threaded column; 307-inner motor; 308-inner transmission wheel; 309-outer transmission wheel; 310-docking gear; 311-bottom transmission belt. DETAILED DESCRIPTION

[0032] The specific implementation of the present invention will be further described below in conjunction with the accompanying drawings.

[0033] Example: Reference Figure 1-Figure 11 A fully automatic integral tilt contact angle tester comprises a supporting device, the supporting device comprises a base frame 101, a testing device and a balancing device are arranged on the supporting device, the testing device comprises a rotating rod 201, the rotating rod 201 is rotatably mounted on the base frame 101, the testing device is used to test the contact angle formed between the test piece and the liquid, the balancing device comprises a bottom slider 301, the bottom slider 301 is slidably mounted on the base frame 101, and the balancing device is used to adjust the horizontal state of the supporting device.

[0034] like Figure 2 As shown, the supporting device includes a driving motor 104 fixedly mounted on a base frame 101, a motor gear 105 is fixedly mounted on the motor shaft of the driving motor 104, a vertical gear shaft 106 is rotatably mounted on the base frame 101, a lower transmission wheel 107, an intermediate gear 108 and an upper gear 109 are fixedly mounted on the vertical gear shaft 106, the motor gear 105 is meshed with the intermediate gear 108, three electronic levels 102 are fixedly mounted on the base frame 101, and four internal threaded sleeves 103 are fixedly mounted on the base frame 101.

[0035] like Figure 2 As shown, a toggle mechanism is provided on the base frame 101, and the toggle mechanism includes a toggle transmission wheel 111 rotatably mounted on the base frame 101, a toggle rod 112 is fixedly mounted on the toggle transmission wheel 111, and a lower transmission belt 110 is wrapped around the toggle transmission wheel 111 and the lower transmission wheel 107.

[0036] The driving motor 104 rotates to drive the motor gear 105 to rotate, and drives the vertical gear shaft 106, the lower transmission wheel 107 and the upper gear 109 to rotate through the intermediate gear 108. The lower transmission wheel 107 drives the toggle transmission wheel 111 and the toggle rod 112 to rotate through the lower transmission belt 110.

[0037] like Figure 3-Figure 8 As shown, the testing device includes a rotating frame 202 fixedly mounted on a rotating rod 201, a lamp holder 204 fixedly mounted on the rotating frame 202, a headlamp 205 fixedly mounted on the lamp holder 204, the lamp holder 204 is rotatably mounted with the base frame 101, a supporting seat 240 fixedly mounted on the rotating frame 202, a high-speed camera 203 fixedly mounted on the supporting seat 240, and a lens 206 fixedly mounted on the rotating frame 202, the lens 206 is located in front of the headlamp 205.

[0038] like Figure 3-Figure 8As shown, an extension rod 212 is fixedly mounted on the rotating frame 202, an upper gear shaft 213 is rotatably mounted on the extension rod 212, an upper transmission wheel 215 and a lower docking gear 214 are fixedly mounted on the upper gear shaft 213, a cam 220 is rotatably mounted on the extension rod 212, a side bevel gear 219 is fixedly mounted on the cam 220, an intermediate wheel 217 is rotatably mounted on the rotating frame 202, a lower bevel gear 218 is fixedly mounted on the intermediate wheel 217, the lower bevel gear 218 is meshed with the side bevel gear 219, an outer gear 221 is rotatably mounted on the rotating frame 202, an upper transmission belt 216 is wrapped around the outer gear 221, the intermediate wheel 217 and the upper transmission wheel 215, and the lower docking gear 214 is meshed with the upper gear 109.

[0039] like Figure 3-Figure 8 As shown, a placement mechanism is provided on the rotating frame 202, and the placement mechanism includes a lifting cylinder 207 fixedly installed on the rotating frame 202, a lifting frame 208 is slidably installed on the lifting cylinder 207, a placement plate 211 and an adjusting threaded column 239 are fixedly installed on the lifting frame 208, an adjusting knob 209 is rotatably installed on the lifting cylinder 207, an inner wall of the adjusting knob 209 is provided with an internal thread, the adjusting knob 209 and the adjusting threaded column 239 form a threaded transmission, and four spring clips 210 are fixedly installed on the placement plate 211.

[0040] like Figure 3-Figure 8 As shown, a dripping mechanism is provided on the rotating frame 202, and the dripping mechanism includes a lifting slide 222 slidably mounted on the rotating frame 202, an upper spring seat 237 is fixedly mounted on the lifting slide 222, a lifting spring 223 is provided between the lifting slide 222 and the rotating frame 202, a lower push column 238 is fixedly mounted on the lifting slide 222, and the lower push column 238 cooperates with the cam 220, a dropper 224 is fixedly mounted on the lifting slide 222, a valve pipe 229 is fixedly mounted on the dropper 224, and a liquid inlet is fixedly mounted on the valve pipe 229. Tube 225, the liquid inlet pipe 225 is connected to the external liquid inlet pipe, the outer ring of the torsion coil spring 227 is fixedly installed on the upper spring seat 237, the inner ring of the torsion coil spring 227 is fixedly installed with a push rod gear 226, the push rod gear 226 is meshed with the external gear 221, and the push rod gear 226 is fixedly installed with a threaded rod 228. The upper tube mouth of the dropper 224 is provided with an internal thread, the threaded rod 228 and the dropper 224 form a threaded transmission, and the threaded rod 228 is fixedly installed with a push-down block 230, which slides and rotates in the dropper 224.

[0041] like Figure 3-Figure 8As shown, a drip hole 235 is provided in the dropper 224, a one-way sheet 231 is slidably installed in the dropper 224, a compression spring 232 is provided between the one-way sheet 231 and the dropper 224, and in the initial state, the one-way sheet 231 closes the drip hole 235, a liquid inlet hole 236 is provided in the valve tube 229, a side one-way sheet 233 is slidably installed in the valve tube 229, a side compression spring 234 is provided between the side one-way sheet 233 and the valve tube 229, and in the initial state, the side one-way sheet 233 closes the liquid inlet hole 236.

[0042] The material to be tested is placed on the placement plate 211, and the material is clamped by the spring clamp 210. The adjusting knob 209 is manually turned. Under the action of the threaded cooperation between the adjusting threaded column 239 and the adjusting knob 209, the lifting frame 208 and the placement plate 211 can be driven to rise and fall along the lifting cylinder 207, thereby adjusting the height of the placement plate 211 so that the height of the material to be tested matches the height of the high-speed camera 203.

[0043] The dropper 224 is filled with a liquid for testing, and the liquid is separated in the upper part by the one-way sheet 231. The upper gear 109 rotates to drive the lower docking gear 214, the upper gear shaft 213 and the upper transmission wheel 215 to rotate, and the lower bevel gear 218 and the outer gear 221 are driven to rotate through the upper transmission belt 216. The rotation of the outer gear 221 drives the push rod gear 226 to rotate, and the rotation of the push rod gear 226 drives the threaded rod 228 to rotate, and the torsion coil spring 227 is twisted. The threaded rod 228 begins to spirally descend under the action of the inner thread of the dropper 224, thereby driving the lower push rod 226 to rotate. The block 230 and the push rod gear 226 spirally descend, and the lower push block 230 descends to push the liquid downward, and the liquid pushes the one-way plate 231, and the compression spring 232 is compressed, so that the one-way plate 231 no longer closes the drip hole 235, and the liquid flows to the bottom of the dropper 224 through the drip hole 235. At the same time, the rotation of the intermediate wheel 217 drives the lower bevel gear 218 to rotate, thereby driving the side bevel gear 219 and the cam 220 to rotate, thereby driving the lower push column 238 and the lifting slide 222 to descend, and then driving the dropper 224 to descend, and the lifting spring 223 is compressed. The liquid dripping from the dropper 224 contacts the material to be tested and places the liquid on the material. At the same time, the toggle rod 112 begins to contact the rotating frame 202 and pushes the rotating frame 202 to rotate. At the same time, the push rod gear 226 is disengaged from the outer gear 221, and the torsion coil spring 227 rebounds, causing the push rod gear 226 and the lower push block 230 to spirally rise and reset, the compression spring 232 rebounds, and the one-way sheet 231 closes the drip hole 235 again. At the same time, the lower push block 230 rises and pulls the side one-way sheet 233 to slide inward, and the side compression spring 234 is The external liquid enters the dropper 224 through the liquid inlet pipe 225 and the valve pipe 229. When the push block 230 returns to the initial position, the side pressure spring 234 rebounds, so that the side one-way plate 233 is closed. When the torsion ring spring 227 rebounds, since the toggle rod 112 has begun to push the rotating frame 202 to rotate, the upper gear 109 has disengaged from the lower docking gear 214, and the outer gear 221 is in a free state, which will not affect the reset of the push rod gear 226 and the cam 220. The lifting spring 223 rebounds to drive the lifting slide 222 to reset.

[0044] The light is irradiated onto the material to be tested and the liquid through the illumination lamp 205 and the lens 206 , and the rotating frame 202 is driven to rotate in coordination with the toggle rod 112 , and the contact angle formed between the liquid and the material to be tested is detected through the high-speed camera 203 .

[0045] like Fig. 9 , Fig.10As shown, the balancing device includes an inner slide 304 slidably installed in the bottom slider 301, an inner motor 307 is fixedly installed in the inner slide 304, an inner transmission wheel 308 is fixedly installed on the motor shaft of the inner motor 307, two docking gears 310 are rotatably installed on the inner slide 304, an outer transmission wheel 309 is fixedly installed on the docking gear 310, a bottom transmission belt 311 is wound around the inner transmission wheel 308 and the two outer transmission wheels 309, a slide spring 305 is arranged between the inner slide 304 and the bottom slider 301, and the inner motor 307 is electrically connected to the electronic level 102.

[0046] like Fig. 9 , Fig.10 As shown, an internal threaded column 306 is installed in the internal threaded sleeve 103 through threaded rotation, the internal threaded column 306 and the internal threaded sleeve 103 form a threaded transmission, and the adjusting gear 303 and the support leg 302 are fixedly installed on the internal threaded column 306.

[0047] Whether the base frame 101 is level is observed and monitored by an electronic level 102 on the base frame 101 .

[0048] When the base frame 101 is uneven, the bottom slider 301 will tilt and slide toward the lower side of the base frame 101. At the same time, the inner slider 304 also slides toward the lower internal threaded sleeve 103, so that the docking gear 310 is engaged with the adjusting gear 303 at the lowest point of the internal threaded sleeve 103. Then the inner motor 307 rotates to drive the inner transmission wheel 308 to rotate, and the outer transmission wheel 309 and the docking gear 310 are driven to rotate through the bottom transmission belt 311, thereby driving the adjusting gear 303 at the lowest point of the internal threaded sleeve 103. The segment gear 303 rotates, thereby driving the internal thread column 306 and the support leg 302 to rotate. Under the action of the internal thread of the internal thread sleeve 103, the support leg 302 is raised or lowered, thereby leveling the base frame 101. When the base frame 101 is leveled, the slide spring 305 drives the inner slide 304 to reset, so that the docking gear 310 is disengaged from the adjustment gear 303. The elastic force of the slide spring 305 is extremely small, and it only plays the role of resetting the inner slide 304 when the base frame 101 is horizontal.

[0049] The working principle of the fully automatic integral tilt contact angle tester disclosed in the present invention is: the electronic level 102 on the base frame 101 is used to observe and monitor whether the base frame 101 is level. When the base frame 101 is not level, the bottom slide 301 will tilt and slide toward the lower side of the base frame 101, and at the same time, the inner slide 304 will also slide toward the lower internal threaded sleeve 103, so that the docking gear 310 is engaged with the adjustment gear 303 at the lowest point of the internal threaded sleeve 103, and then the inner motor 307 rotates to drive the inner transmission wheel 308 to rotate, and the outer transmission wheel 309 and the docking gear 310 are driven to rotate through the bottom transmission belt 311, thereby driving the adjustment gear 303 at the lowest point of the internal threaded sleeve 103. The gear 303 rotates, thereby driving the internal thread column 306 and the leg 302 to rotate. Under the action of the internal thread of the internal thread sleeve 103, the leg 302 is raised or lowered, thereby leveling the base frame 101. When the base frame 101 is leveled, the carriage spring 305 drives the inner carriage 304 to reset, so that the docking gear 310 is separated from the adjustment gear 303. The elastic force of the carriage spring 305 is very small, and it only plays the role of resetting the inner carriage 304 when the base frame 101 is horizontal. The driving motor 104 rotates to drive the motor gear 105 to rotate, and drives the vertical gear shaft 106, the lower transmission wheel 107 and the upper gear 109 to rotate through the intermediate gear 108. The lower transmission wheel 107 drives the toggle transmission wheel 111 and the toggle rod 112 to rotate through the lower transmission belt 110. The material to be tested is placed on the placement plate 211, and the material is clamped by the spring clamp 210. The adjusting knob 209 is manually turned. Under the action of the threaded cooperation between the adjusting threaded column 239 and the adjusting knob 209, the lifting frame 208 and the placement plate 211 can be driven to rise and fall along the lifting cylinder 207, thereby adjusting the height of the placement plate 211 so that the height of the material to be tested matches the height of the high-speed camera 203.The dropper 224 is filled with a liquid for testing, and the liquid is separated in the upper part by the one-way sheet 231. The upper gear 109 rotates to drive the lower docking gear 214, the upper gear shaft 213 and the upper transmission wheel 215 to rotate, and the lower bevel gear 218 and the outer gear 221 are driven to rotate through the upper transmission belt 216. The rotation of the outer gear 221 drives the push rod gear 226 to rotate, and the rotation of the push rod gear 226 drives the threaded rod 228 to rotate, and the torsion coil spring 227 is twisted. The threaded rod 228 begins to spirally descend under the action of the inner thread of the dropper 224, thereby driving the lower push rod 226 to rotate. The block 230 and the push rod gear 226 spirally descend, and the lower push block 230 descends to push the liquid downward, and the liquid pushes the one-way plate 231, and the compression spring 232 is compressed, so that the one-way plate 231 no longer closes the drip hole 235, and the liquid flows to the bottom of the dropper 224 through the drip hole 235. At the same time, the rotation of the intermediate wheel 217 drives the lower bevel gear 218 to rotate, thereby driving the side bevel gear 219 and the cam 220 to rotate, thereby driving the lower push column 238 and the lifting slide 222 to descend, and then driving the dropper 224 to descend, and the lifting spring 223 is compressed. The liquid dripping from the dropper 224 contacts the material to be tested and places the liquid on the material. At the same time, the toggle rod 112 begins to contact the rotating frame 202 and pushes the rotating frame 202 to rotate. At the same time, the push rod gear 226 is disengaged from the outer gear 221, and the torsion coil spring 227 rebounds, causing the push rod gear 226 and the lower push block 230 to spirally rise and reset, the compression spring 232 rebounds, and the one-way sheet 231 closes the drip hole 235 again. At the same time, the lower push block 230 rises and pulls the side one-way sheet 233 to slide inward, and the side compression spring 234 is After compression, the external liquid enters the dropper 224 through the liquid inlet pipe 225 and the valve pipe 229. When the push block 230 returns to the initial position, the side pressure spring 234 rebounds, so that the side one-way piece 233 is closed. When the torsion ring spring 227 rebounds, since the toggle rod 112 has begun to push the rotating frame 202 to rotate, the upper gear 109 has been disengaged from the lower docking gear 214, and the external gear 221 is in a free state, which will not affect the reset of the push rod gear 226 and the cam 220. The lifting spring 223 rebounds and drives the lifting slide 222 to reset. The light 205 and the lens 206 are used to irradiate light on the material to be tested and the liquid, and the toggle rod 112 drives the rotating frame 202 to rotate, and the high-speed camera 203 is used to detect the contact angle formed by the liquid and the material to be tested.

[0050] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A fully automatic integral tilt contact angle tester, comprising a support device, characterized in that: The support device comprises a base frame (101) and a lower transmission wheel (107); a testing device and a balancing device are arranged on the support device; the testing device comprises a rotating rod (201); the rotating rod (201) is rotatably mounted on the base frame (101); the testing device is used to test the contact angle formed between the test piece and the liquid; the balancing device comprises a bottom sliding block (301); the bottom sliding block (301) is slidably mounted on the base frame (101); and the balancing device is used to adjust the horizontal state of the support device; The base frame (101) is provided with a toggle mechanism, the toggle mechanism comprising a toggle transmission wheel (111) rotatably mounted on the base frame (101), a toggle rod (112) fixedly mounted on the toggle transmission wheel (111), and a lower transmission belt (110) wound around the toggle transmission wheel (111) and the lower transmission wheel (107); The testing device comprises a rotating frame (202) fixedly mounted on a rotating rod (201), the rotating frame (202) being provided with a placement mechanism and a dripping mechanism, a light holder (204) fixedly mounted on the rotating frame (202), a lighting fixture (205) fixedly mounted on the light holder (204), the light holder (204) being rotatably mounted on a base frame (101), a support seat (240) fixedly mounted on the rotating frame (202), a high-speed camera (203) fixedly mounted on the support seat (240), and a lens (206) fixedly mounted on the rotating frame (202), the lens (206) being located in front of the lighting fixture (205); The supporting device comprises a driving motor (104) fixedly mounted on a base frame (101); a motor gear (105) is fixedly mounted on a motor shaft of the driving motor (104); a vertical gear shaft (106) is rotatably mounted on the base frame (101); a lower transmission wheel (107), an intermediate gear (108) and an upper gear (109) are fixedly mounted on the vertical gear shaft (106); the motor gear (105) is meshed with the intermediate gear (108); three electronic levels (102) are fixedly mounted on the base frame (101); and four internal threaded sleeves (103) are fixedly mounted on the base frame (101); The rotating frame (202) is fixedly mounted with an extension rod (212), an upper gear shaft (213) is rotatably mounted on the extension rod (212), an upper transmission wheel (215) and a lower docking gear (214) are fixedly mounted on the upper gear shaft (213), a cam (220) is rotatably mounted on the extension rod (212), a side bevel gear (219) is fixedly mounted on the cam (220), an intermediate wheel (217) is rotatably mounted on the rotating frame (202), a lower bevel gear (218) is fixedly mounted on the intermediate wheel (217), the lower bevel gear (218) is meshed with the side bevel gear (219), an outer gear (221) is rotatably mounted on the rotating frame (202), an upper transmission belt (216) is wound around the outer gear (221), the intermediate wheel (217) and the upper transmission wheel (215), and the lower docking gear (214) is meshed with the upper gear (109); The balancing device comprises an inner slide (304) slidably mounted inside a bottom slider (301), an inner motor (307) fixedly mounted inside the inner slide (304), an inner transmission wheel (308) fixedly mounted on the motor shaft of the inner motor (307), two docking gears (310) rotatably mounted on the inner slide (304), an outer transmission wheel (309) fixedly mounted on the docking gears (310), a bottom transmission belt (311) wound around the inner transmission wheel (308) and the two outer transmission wheels (309), a slide spring (305) arranged between the inner slide (304) and the bottom slider (301), and the inner motor (307) electrically connected to an electronic level (102); An internal threaded column (306) is installed in the internal threaded sleeve (103) through threaded rotation, and the internal threaded column (306) and the internal threaded sleeve (103) form a threaded transmission. An adjusting gear (303) and a support leg (302) are fixedly installed on the internal threaded column (306).

2. A fully automatic integral tilt contact angle tester according to claim 1, characterized in that: The placement mechanism comprises a lifting cylinder (207) fixedly mounted on a rotating frame (202); a lifting frame (208) is slidably mounted on the lifting cylinder (207); a placement plate (211) and an adjusting threaded column (239) are fixedly mounted on the lifting frame (208); an adjusting knob (209) is rotatably mounted on the lifting cylinder (207); an inner wall of the adjusting knob (209) is provided with an internal thread; the adjusting knob (209) and the adjusting threaded column (239) form a threaded transmission; and four spring clips (210) are fixedly mounted on the placement plate (211).

3. A fully automatic integral tilt contact angle tester according to claim 2, characterized in that: The dripping mechanism comprises a lifting slide (222) slidably mounted on a rotating frame (202), an upper spring seat (237) fixedly mounted on the lifting slide (222), a lifting spring (223) arranged between the lifting slide (222) and the rotating frame (202), a lower push column (238) fixedly mounted on the lifting slide (222), the lower push column (238) cooperates with a cam (220), a dropper (224) fixedly mounted on the lifting slide (222), a valve tube (229) fixedly mounted on the dropper (224), a liquid inlet tube (225) fixedly mounted on the valve tube (229), and a liquid inlet tube (225) fixedly mounted on the liquid inlet tube. The tube (225) is connected to the external liquid inlet tube, the outer ring of the torsion coil spring (227) is fixedly mounted on the upper spring seat (237), the inner ring of the torsion coil spring (227) is fixedly mounted on the push rod gear (226), the push rod gear (226) is meshed with the outer gear (221), a threaded rod (228) is fixedly mounted on the push rod gear (226), an internal thread is arranged at the upper tube mouth of the dropper (224), the threaded rod (228) and the dropper (224) form a threaded transmission, a lower push block (230) is fixedly mounted on the threaded rod (228), and the lower push block (230) slides and rotates in the dropper (224).

4. A fully automatic integral tilt contact angle tester according to claim 3, characterized in that: The dropper (224) is provided with a drip hole (235), a one-way sheet (231) is slidably mounted in the dropper (224), a compression spring (232) is arranged between the one-way sheet (231) and the dropper (224), and in an initial state, the one-way sheet (231) closes the drip hole (235), a liquid inlet hole (236) is provided in the valve tube (229), a side one-way sheet (233) is slidably mounted in the valve tube (229), a side compression spring (234) is arranged between the side one-way sheet (233) and the valve tube (229), and in an initial state, the side one-way sheet (233) closes the liquid inlet hole (236).

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