CN110967347A - Light guide plate detection machine - Google Patents
Light guide plate detection machine Download PDFInfo
- Publication number
- CN110967347A CN110967347A CN201911409474.0A CN201911409474A CN110967347A CN 110967347 A CN110967347 A CN 110967347A CN 201911409474 A CN201911409474 A CN 201911409474A CN 110967347 A CN110967347 A CN 110967347A
- Authority
- CN
- China
- Prior art keywords
- light guide
- guide plate
- slide rail
- positioning
- axis
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 41
- 230000007246 mechanism Effects 0.000 claims abstract description 56
- 239000000463 material Substances 0.000 claims abstract description 26
- 238000004458 analytical method Methods 0.000 claims abstract description 20
- 230000004438 eyesight Effects 0.000 claims abstract description 14
- 230000002950 deficient Effects 0.000 claims abstract description 6
- 238000007689 inspection Methods 0.000 claims description 21
- 230000001360 synchronised effect Effects 0.000 claims description 15
- 230000002457 bidirectional effect Effects 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 claims description 11
- 239000007779 soft material Substances 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 3
- 230000000007 visual effect Effects 0.000 claims description 3
- 239000007888 film coating Substances 0.000 abstract description 2
- 238000009501 film coating Methods 0.000 abstract description 2
- 238000010030 laminating Methods 0.000 abstract 4
- 238000000576 coating method Methods 0.000 description 8
- 239000011248 coating agent Substances 0.000 description 7
- 230000007704 transition Effects 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 239000004809 Teflon Substances 0.000 description 2
- 229920006362 Teflon® Polymers 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000010183 spectrum analysis Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/8851—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/34—Sorting according to other particular properties
- B07C5/342—Sorting according to other particular properties according to optical properties, e.g. colour
- B07C5/3422—Sorting according to other particular properties according to optical properties, e.g. colour using video scanning devices, e.g. TV-cameras
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/94—Investigating contamination, e.g. dust
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/8851—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges
- G01N2021/8887—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges based on image processing techniques
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
- G01N2021/9511—Optical elements other than lenses, e.g. mirrors
Landscapes
- Chemical & Material Sciences (AREA)
- General Physics & Mathematics (AREA)
- Pathology (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Immunology (AREA)
- Biochemistry (AREA)
- Analytical Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
The invention discloses a light guide plate detector which comprises a workbench, an outer cover, a computer, an NG product collecting box, an FFU fan, an ion fan and a film coating device, wherein the workbench is provided with a light guide plate; the film covering device is arranged on the workbench and comprises a good film covering machine and a defective film covering machine; the feeding mechanism, the material taking mechanism and the detection mechanism are arranged on the workbench; the light guide plate is fed in the feeding mechanism, the material taking mechanism transfers the light guide plate to the detection mechanism, and a vision camera in the detection mechanism collects images of the light guide plate and sends the images to a computer for analysis; the material taking mechanism transfers the light guide plate according to the analysis result of the computer, the material taking mechanism transfers the light guide plate to a good product laminating machine for laminating if the analysis result passes, and the material taking mechanism transfers the light guide plate to a defective product laminating machine for laminating or collecting in an NG product collecting box if the analysis result does not pass.
Description
Technical Field
The invention relates to the technical field of detection equipment, in particular to a light guide plate detector.
Background
The design principle of the light guide plate is derived from a liquid crystal display screen of a notebook computer, and the light guide plate is a product for converting a linear light source into a surface light source. PMMA and PC are used as base materials, the backlight module technology of an LCD display screen and a notebook computer is applied, the high light ray conductivity of the light guide points is utilized, and the light guide points are calculated by the computer, so that the light rays of the light guide plate are refracted into a surface light source uniform light state for manufacturing and forming. The product is manufactured by combining the spectral analysis principle with the digital UV printing technology under the environment conditions of constant temperature, constant humidity and no dust. Therefore, the production environment and the product inspection of the light guide plate are very strict, the light guide plate needs to be inspected after production to check whether the light guide plate has defects such as scratches, white dots and oil stains, and the inspection is performed by adopting a manual inspection mode in the past, but the inspection quality is poor due to the slow manual inspection efficiency, the inspection is performed in the high-light environment and harmful to the eyesight of people, and the light guide plate is easy to cause secondary pollution due to the environment factors. Therefore, it is necessary to develop a light guide plate inspection machine to automatically inspect a light guide plate and avoid causing secondary pollution.
Disclosure of Invention
The present invention is directed to a light guide plate inspection machine to solve the above problems.
The invention realizes the purpose through the following technical scheme:
a light guide plate detector comprises a workbench, an outer cover, a computer, an NG product collecting box and a film covering device; the outer cover is arranged at the upper part of the workbench, opening and closing doors and windows are arranged on the four sides of the outer cover, an opening is formed in the right side of the outer cover, the right side of the opening is connected with a production conveying belt, and the NG product collecting box is arranged on the workbench; the film covering device is arranged on the workbench and comprises a good film covering machine and a defective film covering machine; the method is characterized in that: the feeding mechanism, the material taking mechanism and the detection mechanism are arranged on the workbench; the feeding mechanism comprises a feeding conveying belt and a positioning assembly; the feeding conveyer belt is connected with the production conveyer belt; the positioning assembly is arranged below the feeding conveying belt and used for positioning and lifting the light guide plate conveyed to the upper side of the feeding conveying belt from the feeding conveying belt; the material taking mechanism comprises a manipulator and a clamping assembly arranged at the output end of the manipulator and is used for transferring the light guide plate lifted by the positioning assembly to the detection mechanism; the detection mechanism comprises a visual camera and a light source; the vision camera is electrically connected with the computer and used for collecting images of the light guide plate and sending the images to the computer for analysis, if the analysis result passes through the analysis result, the light guide plate is transferred to the good product film covering machine for film covering through the material taking mechanism, and if the analysis result does not pass through the analysis result, the light guide plate is transferred to the bad product film covering machine for film covering or the NG product collecting box through the material taking mechanism.
Furthermore, the feeding mechanism also comprises a first slide rail bracket, a second slide rail bracket, a guide slide plate, a first sensor and a second sensor which are electrically connected with the computer respectively; the first slide rail bracket is arranged above the feeding conveyer belt; the second slide rail bracket is arranged in front of the first slide rail bracket; the guide sliding plate is connected to the first sliding rail bracket in a sliding manner, and the front side of the guide sliding plate is also provided with guide strips which are respectively unfolded left and right towards the front side; the first sensor is connected to the second slide rail support in a sliding mode, the sensing direction of the first sensor points to the lower side, the first sensor is used for sensing whether the light guide plate is fed into the feeding conveyor belt or not, if the light guide plate passes through the first sensor, a signal is sent to a computer, and the computer controls the speed of the feeding conveyor belt to be increased; the second sensor is arranged behind the first slide rail bracket and is positioned below the feeding conveyer belt, the sensing direction of the second sensor points to the upper part, if the second sensor passes through a light guide plate at present, the light guide plate is not lifted by the positioning component and is not taken away by the material taking mechanism, and a new light guide plate is sensed to enter the feeding conveyer belt, a signal is sent to the computer, and the computer stops the current transportation of the feeding conveyer belt.
Furthermore, the positioning assembly comprises a first Z-axis cylinder, a positioning platform, a rotary cylinder, a second Z-axis cylinder, a jacking block, a side clamping positioning column, a front positioning column, a rear positioning column and a third sensor; the positioning platform is arranged at the output end of the first Z-axis cylinder; the rotary cylinder is arranged on the positioning platform; the second Z-axis cylinder is arranged at the rear end of the positioning platform; the jacking block is arranged on the positioning platform; the side clamping positioning columns are arranged on the left side and the right side of the positioning platform and are in driving connection with the rotary air cylinder through hinges; the front positioning column is arranged at the front end of the positioning platform; the rear positioning column is arranged at the output end of the second Z-axis cylinder; the third sensor is arranged on the front positioning column, the sensing direction of the third sensor points to the upper side, when the third sensor senses that the light guide plate is blocked by the front positioning column, a signal is sent to the computer, the computer controls the rotary cylinder to drive the side clamping positioning column to clamp towards the middle, and the first Z-axis cylinder and the second Z-axis cylinder are simultaneously jacked upwards.
Furthermore, the manipulator is a four-axis manipulator which comprises a Z-axis slide rail, a first R-axis swing arm, a second R-axis swing arm and a third R-axis swing arm; the first R-axis swing arm is connected to the Z-axis slide rail in a sliding manner; the second R-shaft swing arm is in driving connection with the first R-shaft swing arm; and the third R-shaft swing arm is in driving connection with the second R-shaft swing arm.
Furthermore, the clamping assembly comprises a clamping platform, a synchronous motor, a sliding rail pair and a bidirectional clamping arm; the clamping platform is arranged on the output end of the manipulator; the synchronous motor is arranged at the rear end of the clamping platform; the sliding rail pair is arranged on the clamping platform and is in driving connection with the synchronous motor; the bidirectional clamping arm is arranged on the sliding rail pair.
Further, the slide rail pair comprises a bottom slide rail, a slide block, a positive and negative tooth lead screw seat and a lead screw; the bottom sliding rail is arranged on the front side of the upper part of the clamping platform, and the sliding block is connected with the bottom sliding rail in a sliding manner; the positive and negative screw rod seats are respectively arranged on the sliding blocks; the screw rod is sleeved on the screw rod seat with the positive and negative teeth and is in driving connection with the synchronous motor through a synchronous belt; the two-way clamping arms are respectively arranged on the positive and negative screw rod seats.
Furthermore, an L-shaped block is arranged at the lower part of the bidirectional clamping arm; and a soft material is arranged on the L-shaped block.
Furthermore, a spring needle is arranged in the L-shaped block, and the elastic direction of the spring needle is contacted with the soft material.
Furthermore, the detection mechanism also comprises a detection frame body, a Z-axis slide rail for carrying objects, a transparent object stage and a light source frame; the detection frame body is arranged on the workbench, and an opening is formed in the front side of the detection frame body; the object carrying Z-axis slide rail is arranged in the detection frame; the transparent object stage is connected to the object carrying Z-axis slide rail in a sliding manner; the light source frame is arranged on the front side of the Z-axis slide rail; the light source is arranged in the light source frame; the vision cameras are respectively arranged above and below the transparent object stage, and the vision direction points to the transparent object stage.
Furthermore, a slidable cover plate is arranged on the light source frame, and the irradiation range of the irradiation light of the light source can be adjusted by moving the cover plate.
The invention has the beneficial effects that 1, the inspection efficiency is high; the feeding mechanism, the material taking mechanism and the detection mechanism are arranged; the light guide plate is transferred from the production conveying belt through the feeding mechanism, then the material taking mechanism transfers the light guide plate to the detection mechanism for detection, and a vision camera in the detection mechanism is electrically connected with a computer and used for collecting images of the light guide plate and sending the images to the computer for analysis; the material taking mechanism transfers the light guide plate according to the analysis result of the computer, compared with the traditional manual inspection, the material taking mechanism has the advantage of high inspection efficiency, and avoids the high-brightness environment from damaging the eyesight of people; 2. secondary pollution is avoided; the FFU fan, the ion fan and the detection ion fan are arranged, a gap is reserved between the outer cover and the workbench, and dust-free wind energy is blown out from the gap, so that the light guide plate is in a dust-free environment in the outer cover; 3. the universality is strong; the sensor and the guide sliding plate are assembled in a sliding connection mode, can be adjusted to adapt to light guide plates of different specifications and sizes, and has the advantage of strong universality; 4. the workpiece is not scratched; an L-shaped block is arranged at the lower part of the bidirectional clamping arm; rubber is arranged on the L-shaped block, the surfaces of the side clamping positioning column, the front positioning column and the rear positioning column are coated with Teflon coatings, and the surface of the jacking block is provided with a rubber block, so that the light guide plate can be prevented from being damaged in the transfer process.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a partial schematic view of the present invention;
FIG. 3 is a schematic diagram of the construction of the infeed conveyor belt of the present invention;
FIG. 4 is a schematic diagram of the construction of the infeed conveyor belt of the present invention;
FIG. 5 is a schematic illustration of the structure of the infeed conveyor belt of the present invention;
FIG. 6 is a schematic structural view of a positioning assembly of the present invention;
FIG. 7 is a schematic view of a material extracting mechanism according to the present invention;
FIG. 8 is a schematic view of a clamping assembly of the present invention;
FIG. 9 is a partial schematic view of the detection mechanism of the present invention;
FIG. 10 is a schematic view of a light source shelf according to the present invention;
fig. 11 is a schematic structural view of a clamping assembly of embodiment 2.
100. A work table; 101. a housing; 102. NG product collecting box; 103. an FFU fan; 104. an ion blower; 105. a film covering device; 106. opening and closing the door and window; 107. producing a conveyor belt; 200. a feeding mechanism; 201. a feed conveyor belt; 202. a first slide rail bracket; 203. a second slide rail bracket; 204. a guide slide plate; 205. a first sensor; 206. a second sensor; 207. a positioning assembly; 208. a transport frame; 209. a feeding motor; 210. transporting the sticks; 211. a rubber belt; 212. a transition roll; 213. a cleaning roller; 214. a guide strip; 215. a first Z-axis cylinder; 216. positioning the platform; 217. a rotating cylinder; 218. a second Z-axis cylinder; 219. jacking the block; 220. the side edge clamps the positioning column; 221. a front positioning column; 222. a rear positioning column; 223. a third sensor; 300. a material taking mechanism; 301. a Z-axis slide rail; 302. a first R-axis swing arm; 303. a second R-axis swing arm; 304. a third R-axis swing arm; 305. a clamping assembly; 306. a clamping platform; 307. a synchronous motor; 308. a slide rail pair; 309. a bidirectional gripping arm; 310. a bottom slide rail; 311. a slider; 312. a screw seat with positive and negative teeth; 313. a lead screw; 314. an "L" shaped block; 315. soft materials; 316. a pogo pin; 400. a detection mechanism; 401. a vision camera; 402. a light source; 403. a detection frame body; 404. a Z-axis slide rail for carrying a material; 405. a transparent stage; 406. a light source frame; 407. detecting an ion fan; 408. a slidable cover plate.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. It is to be noted that the drawings of the present invention are each in simplified form and are each provided with a non-precise scale for the purpose of facilitating and distinctly claiming the embodiments of the present invention.
Example 1:
as shown in fig. 1 to 10, the present invention discloses a light guide plate detection machine, which comprises a workbench 100, a housing 101, a computer, an NG product collection box 102, an FFU blower 103, an ion blower 104, and a film coating device 105; the outer cover 101 is arranged on the upper part of the workbench 100, a gap is reserved between the outer cover 101 and the workbench 100, four sides of the outer cover are provided with opening and closing doors 106, the right side of the outer cover is provided with an opening, the right side of the opening is connected with a production conveyor belt 107, the NG product collecting box 102 is arranged on the workbench 100, the FFU fan 103 is arranged on the upper part of the outer cover 101, the wind direction of the FFU fan blows into the outer cover 101, and the ion fan 104 is arranged on the upper part of the workbench 100; the film covering device 105 is arranged on the upper part of the workbench 100 and comprises a good film covering machine and a defective film covering machine; the automatic feeding and discharging device further comprises a feeding mechanism 200, a material taking mechanism 300 and a detection mechanism 400 which are arranged on the workbench 100;
the feeding mechanism 200 comprises a feeding conveyer belt 201, a first sliding rail bracket 202, a second sliding rail bracket 203, a guide sliding plate 204, a first sensor 205, a second sensor 206 and a positioning assembly 207, wherein the first sensor 205, the second sensor 206 and the positioning assembly 207 are electrically connected with a computer respectively; the feeding conveyor belt 201 is connected with the production conveyor belt 107 and comprises a conveying frame 208, a feeding motor 209 arranged on the frame, a conveying roller 210, a rubber belt 211, a transition roller 212 and a cleaning roller 213; the feeding motor 209 is in driving connection with the conveying roller; the rubber belt 211 is sleeved on the conveying roller; the transition roller 212 is arranged between the conveying roller and the rubber belt 211 and is in contact with the rubber belt 211; the cleaning roller 213 is arranged at the lower part of the transition roller 212 through a spring, is contacted with the transition roller 212, and is wound with adhesive paper which can be torn on the surface; the first slide rail bracket 202 is arranged above the feeding conveyor belt 201; the second slide rail bracket 203 is arranged in front of the first slide rail bracket 202; the guide sliding plate 204 is slidably connected to the first slide rail bracket 202, and a guide bar 214 respectively extending to the left and right of the front side is further arranged on the front side of the guide sliding plate; the first sensor 205 is slidably connected to the second slide rail bracket 203, and the sensing direction of the first sensor points downward; the second sensor 206 is disposed behind the first slide rail bracket 202 and below the feeding conveyor belt 201, and the sensing direction of the second sensor points upward; the positioning assembly 207 is arranged below the feeding conveyer belt 201 and comprises a first Z-axis cylinder 215, a positioning platform 216, a rotary cylinder 217, a second Z-axis cylinder 218, a jacking block 219, a side clamping positioning column 220 with a teflon coating coated on the surface, a front positioning column 221, a rear positioning column 222 and a third sensor 223; the positioning platform 216 is disposed at the output end of the first Z-axis cylinder 215; the rotary cylinder 217 is arranged on the positioning platform 216; the second Z-axis cylinder 218 is arranged at the rear end of the positioning platform 216; the jacking block 219 is arranged on the positioning platform 216, and a rubber block is arranged on the surface of the jacking block; the side clamping positioning columns 220 are arranged on the left side and the right side of the positioning platform 216 and are in driving connection with the rotating cylinder 217 through hinges; the front positioning column 221 is disposed at the front end of the positioning platform 216; the rear positioning post 222 is arranged at the output end of the second Z-axis cylinder 218; the third sensor 223 is disposed on the front positioning pillar 221, and the sensing direction thereof points upward; when the positioning assembly 207 is in a non-operating state, the front positioning column 221 and the side clamping positioning column 220 extend out of the feeding conveyer belt 201, and the rear positioning column 222 is below the feeding conveyer belt 201;
the material taking mechanism 300 comprises a manipulator and a clamping assembly 305 arranged at the output end of the manipulator; the manipulator is a four-axis manipulator which comprises a Z-axis slide rail 301, a first R-axis swing arm 302, a second R-axis swing arm 303 and a third R-axis swing arm 304; the first R-axis swing arm 302 is slidably connected to the Z-axis slide rail 301; the second R-axis swing arm 303 is in driving connection with the first R-axis swing arm 302; the third R-axis swing arm 304 is in driving connection with the second R-axis swing arm 303; the clamping assembly 305 comprises a clamping platform 306, a synchronous motor 307, a slide rail pair 308 and a bidirectional clamping arm 309; the clamping platform 306 is arranged on the output end of the manipulator; the synchronous motor 307 is arranged at the rear end of the clamping platform 306; the slide rail pair 308 comprises a bottom slide rail 310, a slide block 311, a positive and negative tooth lead screw 313 seat 312 and a lead screw 313; the bottom slide rail 310 is disposed at the front side of the upper portion of the clamping platform 306; the sliding block 311 is connected with the bottom sliding rail 310 in a sliding manner; the positive and negative tooth lead screw 313 seats 312 are respectively arranged on the sliding block 311; the screw 313 is sleeved on the screw 313 seat 312 of the front and back teeth and is in driving connection with the synchronous motor 307 through a synchronous belt; the bidirectional clamping arms 309 are respectively arranged on the positive and negative tooth lead screw 313 seats 312; the lower part of the bidirectional clamping arm 309 is provided with an L-shaped block 314; the L-shaped block 314 is provided with a soft material 315; the soft material 315 is made of rubber;
the detection mechanism 400 comprises a visual camera 401, a light source 402, a detection frame 403, a carrying Z-axis slide rail 404, a transparent carrying platform 405, a light source shelf 406 and a detection ion fan 407; the detection frame 403 is disposed on the worktable 100, and an opening is disposed at a front side thereof; the object-carrying Z-axis slide rail 404 is arranged in the detection frame 403; the transparent object stage 405 is slidably connected to the object-carrying Z-axis slide rail 404; the light source shelf 406 is arranged on the front side of the Z-axis slide rail 301, a slidable cover plate 408 is arranged on the light source shelf, the irradiation range of the irradiation light of the light source 402 can be adjusted according to the sizes of different light guide plates by moving the cover plate, and the light source shelf 406 is arranged in alignment with the transparent object stage 405, so that the light can be irradiated from the side of the light guide plates in parallel, no ghost image is generated, and the irradiation effect is good; the light source 402 is disposed within the light source shelf 406; the vision camera 401 is electrically connected with a computer and respectively arranged above and below the transparent object stage 405, and the vision direction points to the transparent object stage 405; the detection ion blower 407 is provided at the rear of the detection housing 403, and blows air into the detection housing 403.
The working principle is as follows: firstly, the produced light guide plate is transported from the production conveyor belt 107 to the feeding conveyor belt 201, the light guide plate is guided and straightened by the guide strips 214, and the guide sliding plate 204 can adjust the left and right distance to adapt to light guide plates with different sizes and specifications; when the light guide plate is received by the front positioning posts 221, the rotating cylinders 217 of the positioning assembly 207 drive the side holding positioning posts 220 to clamp the light guide plate, and then the first Z-axis cylinder 215 jacks up the whole positioning assembly 207, the second Z-axis cylinder 218 jacks up the rear positioning post 222 to block the subsequent light guide sheet from being transported forward, then the robot drives the clamping assembly 305 to transfer the light guide plate on the positioning assembly 207 to the transparent stage 405 in the detection mechanism 400, then the vision camera 401 collects and sends the light guide plate to the computer for analysis, and whether the light guide plate is scratched, white dots or greasy dirt is detected, if the analysis result passes, in this embodiment, the manipulator transfers the light guide plate to a good product coating machine of the coating device 105 for coating, if the analysis result does not pass, the manipulator transfers the light guide plate to a defective product coating machine of the coating device 105 for coating; in addition, the manufacturer can set up the light guide plate which will not pass the inspection to transfer the manipulator to the NG product collecting box 102 for collection when the analysis result is passed, so as to facilitate the rework in the later period.
Principle of the first, second, third sensors: the first sensor 205 is used for sensing whether a light guide plate is fed into the feeding conveyor belt 201, and if the light guide plate passes through the feeding conveyor belt, a signal is sent to a computer, and the computer controls to accelerate the feeding conveyor belt 201; the second sensor 206 is used for sending a signal to the computer if the light guide plate passes through a light guide plate which is not lifted by the positioning component 207 and is not taken away by the material taking mechanism 300, and a new light guide plate is sensed to enter the feeding conveyer belt 201, and the computer stops the current transportation of the feeding conveyer belt 201 to prevent stacking; the third sensor 223 is used for sending a signal to a computer when it is sensed that the light guide plate is blocked by the front positioning post 221, the computer controls the rotary cylinder 217 to drive the side clamping positioning post 220 to clamp towards the middle, the first Z-axis cylinder 215 and the second Z-axis cylinder 218 simultaneously jack up upwards, at this time, the light guide plate above the positioning assembly 207, which is jacked up by the first Z-axis cylinder 215, is taken away by the material taking mechanism 300, and the rear positioning post 222, which is jacked up by the second Z-axis cylinder 218, can block the subsequent light guide plate, so as to further prevent stacking.
Example 2:
as shown in fig. 11, this embodiment is substantially the same as the embodiment, and an "L" shaped block 314 is provided at the lower part of the bidirectional holding arm 309; the L-shaped block 314 is provided with a soft material 315; the soft material 315 is made of rubber; a spring needle 316 is arranged in the L-shaped block 314, and the elastic direction of the spring needle is contacted with the soft material 315; in the embodiment, when the soft material 315 is in contact with the light guide plate, the pogo pins 316 can provide a buffering force to further protect the light guide plate.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. A light guide plate detector comprises a workbench, an outer cover, a computer, an NG product collecting box and a film covering device; the outer cover is arranged at the upper part of the workbench, opening and closing doors and windows are arranged on the four sides of the outer cover, an opening is formed in the right side of the outer cover, the right side of the opening is connected with a production conveying belt, and the NG product collecting box is arranged on the workbench; the film covering device is arranged on the workbench and comprises a good film covering machine and a defective film covering machine; the method is characterized in that: the feeding mechanism, the material taking mechanism and the detection mechanism are arranged on the workbench; the feeding mechanism comprises a feeding conveying belt and a positioning assembly; the feeding conveyer belt is connected with the production conveyer belt; the positioning assembly is arranged below the feeding conveying belt and used for positioning and lifting the light guide plate conveyed to the upper side of the feeding conveying belt from the feeding conveying belt; the material taking mechanism comprises a manipulator and a clamping assembly arranged at the output end of the manipulator and is used for transferring the light guide plate lifted by the positioning assembly to the detection mechanism; the detection mechanism comprises a visual camera and a light source; the vision camera is electrically connected with the computer and used for collecting images of the light guide plate and sending the images to the computer for analysis, if the analysis result passes through the analysis result, the light guide plate is transferred to the good product film covering machine for film covering through the material taking mechanism, and if the analysis result does not pass through the analysis result, the light guide plate is transferred to the bad product film covering machine for film covering or collected in the NG product collecting box through the material taking mechanism.
2. The light guide plate inspection machine according to claim 1, wherein: the feeding mechanism also comprises a first sliding rail bracket, a second sliding rail bracket, a guide sliding plate, a first sensor and a second sensor which are electrically connected with the computer respectively; the first slide rail bracket is arranged above the feeding conveyer belt; the second slide rail bracket is arranged in front of the first slide rail bracket; the guide sliding plate is connected to the first sliding rail bracket in a sliding manner, and the front side of the guide sliding plate is also provided with guide strips which are respectively unfolded left and right towards the front side; the first sensor is connected to the second slide rail bracket in a sliding manner, and the sensing direction of the first sensor points to the lower part; the second sensor is arranged behind the first sliding rail support and below the feeding conveying belt, and the sensing direction of the second sensor points to the upper side.
3. The light guide plate inspection machine according to claim 1, wherein: the positioning assembly comprises a first Z-axis cylinder, a positioning platform, a rotary cylinder, a second Z-axis cylinder, a jacking block, a side clamping positioning column, a front positioning column, a rear positioning column and a third sensor; the positioning platform is arranged at the output end of the first Z-axis cylinder; the rotary cylinder is arranged on the positioning platform; the second Z-axis cylinder is arranged at the rear end of the positioning platform; the jacking block is arranged on the positioning platform; the side clamping positioning columns are arranged on the left side and the right side of the positioning platform and are in driving connection with the rotary air cylinder through hinges; the front positioning column is arranged at the front end of the positioning platform; the rear positioning column is arranged at the output end of the second Z-axis cylinder; the third sensor is arranged on the front positioning column, and the sensing direction of the third sensor points to the upper side.
4. The light guide plate inspection machine according to claim 1, wherein: the manipulator is a four-axis manipulator which comprises a Z-axis slide rail, a first R-axis swing arm, a second R-axis swing arm and a third R-axis swing arm; the first R-axis swing arm is connected to the Z-axis slide rail in a sliding manner; the second R-shaft swing arm is in driving connection with the first R-shaft swing arm; and the third R-shaft swing arm is in driving connection with the second R-shaft swing arm.
5. The light guide plate inspection machine according to claim 1, wherein: the clamping assembly comprises a clamping platform, a synchronous motor, a sliding rail pair and a bidirectional clamping arm; the clamping platform is arranged on the output end of the manipulator; the synchronous motor is arranged at the rear end of the clamping platform; the sliding rail pair is arranged on the clamping platform and is in driving connection with the synchronous motor; the bidirectional clamping arm is arranged on the sliding rail pair.
6. The light guide plate inspection machine according to claim 5, wherein: the slide rail pair comprises a bottom slide rail, a slide block, a positive and negative tooth lead screw seat and a lead screw; the bottom sliding rail is arranged on the front side of the upper part of the clamping platform, and the sliding block is connected with the bottom sliding rail in a sliding manner; the positive and negative screw rod seats are respectively arranged on the sliding blocks; the screw rod is sleeved on the screw rod seat with the positive and negative teeth and is in driving connection with the synchronous motor through a synchronous belt; the two-way clamping arms are respectively arranged on the positive and negative screw rod seats.
7. The light guide plate inspection machine according to claim 6, wherein: an L-shaped block is arranged at the lower part of the bidirectional clamping arm; and a soft material is arranged on the L-shaped block.
8. The light guide plate inspection machine according to claim 7, wherein: the L-shaped block is internally provided with a spring needle, and the elastic direction of the spring needle is contacted with the soft material.
9. The light guide plate inspection machine according to claim 1, wherein: the detection mechanism also comprises a detection frame body, a carrying Z-axis slide rail, a transparent carrying table and a light source frame; the detection frame body is arranged on the workbench, and an opening is formed in the front side of the detection frame body; the object carrying Z-axis slide rail is arranged in the detection frame; the transparent object stage is connected to the object carrying Z-axis slide rail in a sliding manner; the light source frame is arranged on the front side of the Z-axis slide rail; the light source is arranged in the light source frame; the vision cameras are respectively arranged above and below the transparent object stage, and the vision direction points to the transparent object stage.
10. The light guide plate inspection machine according to claim 9, wherein: the light source frame is provided with a slidable cover plate, and the irradiation range of the irradiation light of the light source can be adjusted by moving the cover plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911409474.0A CN110967347B (en) | 2019-12-31 | 2019-12-31 | Light guide plate detects machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911409474.0A CN110967347B (en) | 2019-12-31 | 2019-12-31 | Light guide plate detects machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110967347A true CN110967347A (en) | 2020-04-07 |
| CN110967347B CN110967347B (en) | 2024-05-28 |
Family
ID=70037743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911409474.0A Active CN110967347B (en) | 2019-12-31 | 2019-12-31 | Light guide plate detects machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110967347B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112209057A (en) * | 2020-10-17 | 2021-01-12 | 东莞科卓机器人有限公司 | FPC lamp strip material loading machine |
| CN115090561A (en) * | 2022-07-08 | 2022-09-23 | 崧智智能科技(苏州)有限公司 | Unit system for cooling-cleaning-detecting film products |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108303429A (en) * | 2018-01-12 | 2018-07-20 | 嵊州市东浩电子科技有限公司 | It is a kind of leaded light board defect automatically detection and sorting device |
| CN208043682U (en) * | 2018-01-12 | 2018-11-02 | 嵊州市东浩电子科技有限公司 | A kind of leaded light board defect Automatic Visual Inspection device |
| US20190033568A1 (en) * | 2017-06-07 | 2019-01-31 | Xinyu Li | Fully Automatic Microscopic Scanner |
| CN109794446A (en) * | 2019-03-05 | 2019-05-24 | 江苏派恩新型材料有限公司 | A kind of overlay film detection device |
| CN110369337A (en) * | 2019-08-22 | 2019-10-25 | 深圳中天云创科技有限公司 | Light guide plate defective vision automatic checkout equipment and detection method |
-
2019
- 2019-12-31 CN CN201911409474.0A patent/CN110967347B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20190033568A1 (en) * | 2017-06-07 | 2019-01-31 | Xinyu Li | Fully Automatic Microscopic Scanner |
| CN108303429A (en) * | 2018-01-12 | 2018-07-20 | 嵊州市东浩电子科技有限公司 | It is a kind of leaded light board defect automatically detection and sorting device |
| CN208043682U (en) * | 2018-01-12 | 2018-11-02 | 嵊州市东浩电子科技有限公司 | A kind of leaded light board defect Automatic Visual Inspection device |
| CN109794446A (en) * | 2019-03-05 | 2019-05-24 | 江苏派恩新型材料有限公司 | A kind of overlay film detection device |
| CN110369337A (en) * | 2019-08-22 | 2019-10-25 | 深圳中天云创科技有限公司 | Light guide plate defective vision automatic checkout equipment and detection method |
Non-Patent Citations (2)
| Title |
|---|
| YI-GANG CEN: "Defect inspection for TFT-LCD images based on the low-rank matrix reconstruction", 《NEUROCOMPUTING》, 31 December 2015 (2015-12-31) * |
| 李俊峰: "基于机器视觉的导光板缺陷检测方法研究", 《光电子·激光》, 15 March 2019 (2019-03-15) * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112209057A (en) * | 2020-10-17 | 2021-01-12 | 东莞科卓机器人有限公司 | FPC lamp strip material loading machine |
| CN115090561A (en) * | 2022-07-08 | 2022-09-23 | 崧智智能科技(苏州)有限公司 | Unit system for cooling-cleaning-detecting film products |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110967347B (en) | 2024-05-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209764743U (en) | visual detection device and appearance detection equipment | |
| CN106670116B (en) | Magnetic material detects and sorting device | |
| CN110000111A (en) | Comprehensive defect detection equipment | |
| CN111707669A (en) | Cover plate final inspection AOI equipment and detection method thereof | |
| CN210734805U (en) | Automatic positioning device and automatic detection line comprising same | |
| CN210146484U (en) | A kind of lens front and back automatic detection and sorting equipment | |
| CN111812104B (en) | Double-sided detector for 3D copper foil plate | |
| CN114643208A (en) | Optical lens piece flaw automatic check out test set | |
| CN110967347B (en) | Light guide plate detects machine | |
| CN110967168A (en) | Backlight finished product outward appearance detects machine | |
| CN110581096A (en) | Photoelectric property and appearance integrated detection equipment for LED chip | |
| CN116818782A (en) | AOI detection equipment for detecting appearance defects of lenses | |
| CN115744254B (en) | Automatic door plate detection and conveying device | |
| CN117686507A (en) | Automatic keyboard inspection device and inspection method thereof | |
| CN206588032U (en) | A kind of magnetic material detection and sorting equipment | |
| CN210059028U (en) | Omnibearing defect detection equipment | |
| CN217237794U (en) | Diversified outward appearance detection device | |
| CN211652576U (en) | Light guide plate detection machine | |
| CN211453396U (en) | Detection device | |
| CN211652024U (en) | Backlight finished product outward appearance detects machine | |
| CN118719592A (en) | A shaft appearance detection device and detection method | |
| CN220215839U (en) | Detection equipment | |
| CN218766689U (en) | Transmission and detection device for detecting appearance defects of cover plate glass | |
| CN110658204A (en) | a detection device | |
| CN219496140U (en) | An all-round online appearance inspection machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Country or region after: China Address after: 523000 Room 201, unit 7, building 6, Tian'an Digital City, No. 1, Huangjin Road, Nancheng street, Dongguan City, Guangdong Province Applicant after: Guangdong Kezhuo Semiconductor Equipment Co.,Ltd. Address before: No.1, 1st floor, area C, yongtou Automation Industrial Park, No.3 Caoling street, Zhouxi Keji Road, Zhouxi community, Nancheng street, Dongguan City, Guangdong Province, 523000 Applicant before: DONGGUAN KEZHUO ROBOT Co.,Ltd. Country or region before: China |
|
| CB02 | Change of applicant information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |