CN110967347B - Light guide plate detects machine - Google Patents
Light guide plate detects machine Download PDFInfo
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- CN110967347B CN110967347B CN201911409474.0A CN201911409474A CN110967347B CN 110967347 B CN110967347 B CN 110967347B CN 201911409474 A CN201911409474 A CN 201911409474A CN 110967347 B CN110967347 B CN 110967347B
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- 230000007246 mechanism Effects 0.000 claims abstract description 56
- 238000001514 detection method Methods 0.000 claims abstract description 33
- 238000010030 laminating Methods 0.000 claims abstract description 22
- 239000000463 material Substances 0.000 claims abstract description 22
- 238000004458 analytical method Methods 0.000 claims abstract description 17
- 230000000007 visual effect Effects 0.000 claims abstract description 8
- 230000002950 deficient Effects 0.000 claims abstract description 6
- 238000007689 inspection Methods 0.000 claims description 20
- 230000001360 synchronised effect Effects 0.000 claims description 15
- 238000004519 manufacturing process Methods 0.000 claims description 11
- 239000007779 soft material Substances 0.000 claims description 11
- 230000004438 eyesight Effects 0.000 claims description 9
- 230000002457 bidirectional effect Effects 0.000 claims description 7
- 238000003475 lamination Methods 0.000 claims description 6
- 230000006698 induction Effects 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 3
- 238000012546 transfer Methods 0.000 abstract description 6
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- 238000004140 cleaning Methods 0.000 description 5
- 241000519995 Stachys sylvatica Species 0.000 description 2
- 239000004809 Teflon Substances 0.000 description 2
- 229920006362 Teflon® Polymers 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000000428 dust Substances 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
- 230000005540 biological transmission Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
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- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
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- 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
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- 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
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- 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
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- 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
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- 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
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- 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
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
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- 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, a NG product collecting box, an FFU fan, an ion fan and a film covering device, wherein the outer cover is arranged on the workbench; the film laminating device is arranged on the workbench and comprises a good product film laminating machine and a defective product film laminating machine; the device also comprises a feeding mechanism, a material taking mechanism and a detection mechanism which 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 detecting mechanism, and a visual camera in the detecting mechanism picks up images of the light guide plate and sends the images to the computer for analysis; the light guide plate is transferred by the material taking mechanism according to the analysis result of the computer, the light guide plate is transferred to the good product laminating machine for laminating by the material taking mechanism when the analysis result passes, and the light guide plate is transferred to the bad product laminating machine for laminating or collecting in the NG product collecting box by the material taking mechanism when 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, and the backlight module technology of an LCD display screen and a notebook computer is used for calculating the light guide point through a computer by using the high light conductivity of the light guide point, so that the light of the light guide plate is refracted into a uniform light state of a surface light source for manufacturing and forming. The product is manufactured by combining a spectrum analysis principle with a digital UV printing technology under the environment conditions of constant temperature, constant humidity and dust free. 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 spots and greasy dirt, and the like, but the inspection is performed by adopting a manual inspection mode in the past, but the manual inspection efficiency is low, the inspection quality is poor, the inspection is also required to be performed in a high-light environment during the manual inspection, the eyesight of people is harmful, and the light guide plate is easy to cause secondary pollution due to the factors of the environment. Therefore, it is necessary to develop a light guide plate inspection machine to realize automatic inspection of the light guide plate and to avoid secondary pollution.
Disclosure of Invention
The present invention is directed to a light guide plate inspection machine, so as to solve the above-mentioned problems.
The invention realizes the above purpose through the following technical scheme:
A light guide plate detector comprises a workbench, an outer cover, a computer, a NG product collecting box and a film covering device; the outer cover is arranged on the upper part of the workbench, four sides of the outer cover are provided with open-close doors and windows, the right side of the outer cover is provided with an opening, the right side of the opening is connected with the production conveyor belt, and the NG product collecting box is arranged on the workbench; the film laminating device is arranged on the workbench and comprises a good product film laminating machine and a defective product film laminating machine; the method is characterized in that: the device also comprises a feeding mechanism, a material taking mechanism and a detection mechanism which are arranged on the workbench; the feeding mechanism comprises a feeding conveyor belt and a positioning assembly; the feeding conveyor belt is connected with the production conveyor belt; the positioning component is arranged below the feeding conveyor belt and is used for positioning and lifting the light guide plate conveyed from the feeding conveyor belt to the upper side of the light guide plate; 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 vision camera and a light source; the visual camera is electrically connected with the computer and used for picking up images of the light guide plate and sending the images to the computer for analysis, the light guide plate is transferred to the good product film laminating machine for film lamination by the material taking mechanism when the analysis result passes, and the light guide plate is transferred to the defective product film laminating machine for film lamination or the NG product collecting box by the material taking mechanism when the analysis result does not pass.
Further, the feeding mechanism further comprises a first sliding rail bracket, a second sliding rail bracket, a guide sliding plate, a first sensor and a second sensor which are respectively and electrically connected with the guide sliding plate; the first sliding rail support is arranged above the feeding conveyor belt; the second sliding rail bracket is arranged in front of the first sliding rail bracket; the guide slide plate is connected to the first slide rail bracket in a sliding way, and the front side of the guide slide plate is also provided with guide strips which are respectively unfolded to the left and right of the front side; the first sensor is connected to the second sliding rail bracket in a sliding way, the induction direction of the first sensor is downward, and the first sensor is used for inducing whether the light guide plate is sent into the feeding conveyor belt or not, if the current light guide plate is identified to pass, a signal is sent to the computer, and the computer controls the speed of the feeding conveyor belt to be increased; the second sensor is arranged behind the first sliding rail support and is positioned below the feeding conveyor belt, the sensing direction of the second sensor points upwards, if the second sensor passes through a light guide plate currently, the light guide plate is not lifted by the positioning component and is not taken away by the material taking mechanism, and when the second sensor senses that a new light guide plate enters the feeding conveyor belt, a signal is sent to a computer, and the computer stops the current conveying of the feeding conveyor belt.
Further, 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 air 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 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 induction direction of the third sensor is upwards, when the light guide plate is induced to be 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 jacked upwards at the same time.
Further, the manipulator is a four-axis manipulator, and comprises a Z-axis sliding 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 sliding rail in a sliding manner; the second R-axis swing arm is in driving connection with the first R-axis swing arm; the third R-axis swing arm is in driving connection with the second R-axis swing arm.
Further, the clamping assembly comprises a clamping platform, a synchronous motor, a sliding rail pair and a bidirectional clamping arm; the clamping platform is arranged at 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 sliding rail pair comprises a bottom sliding rail, a sliding block, a positive and negative tooth screw rod seat and a screw rod; the bottom sliding rail is arranged at 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 way; the positive and negative tooth screw rod seats are respectively arranged on the sliding blocks; the screw rod is sleeved on the positive and negative tooth screw rod seat and is in driving connection with the synchronous motor through a synchronous belt; the two-way clamping arms are respectively arranged on the front and back tooth screw rod seat.
Further, the lower part of the two-way clamping arm is provided with an L-shaped block; the L-shaped block is provided with a soft material.
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.
Further, the detection mechanism further comprises a detection frame body, a carrying Z-axis sliding rail, a transparent objective 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 sliding rail is arranged in the detection frame body; the transparent objective table is connected to the object carrying Z-axis sliding rail in a sliding manner; the light source rack is arranged on the front side of the Z-axis sliding rail; the light source is arranged in the light source frame; the visual camera is respectively arranged above and below the transparent object stage, and the visual direction points to the transparent object stage.
Further, 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 advantages that 1, the test efficiency is high; the invention is provided with a feeding mechanism, a material taking mechanism and a detection mechanism; the light guide plate is transferred in from the production conveyor belt through the feeding mechanism, then the light guide plate is transferred to the detecting mechanism by the material taking mechanism for detection, and a visual camera in the detecting mechanism is electrically connected with the computer and is used for picking up 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 computer analysis result, compared with the traditional manual inspection, the material taking mechanism has the advantage of high inspection efficiency, and the highlight environment is prevented from damaging the eyesight of people; 2. secondary pollution is avoided; according to the invention, the FFU fan, the ion fan and the ion detection 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, the transition roller and the cleaning roller are arranged, the surface of the cleaning roller is wound with the tearable sticky paper, and dust on the feeding conveyor belt can be cleaned through the transmission of the transition roller, so that secondary pollution is avoided; 3. the universality is strong; the sensor and the guide slide plate are assembled in a sliding connection mode, and can be adjusted to adapt to the light guide plates with different specifications and sizes, so that the sensor and the guide slide plate have the advantage of strong universality; 4. the workpiece is not scratched; the lower part of the two-way clamping arm is provided with an L-shaped block; the L-shaped block is provided with rubber, the surfaces of the side clamping positioning column, the front positioning column and the rear positioning column are coated with a Teflon coating, and the surface of the jacking block is provided with a rubber block, so that the damage of the light guide plate in the transferring process can be avoided.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic view of a partial structure of the present invention;
FIG. 3 is a schematic view of the structure of the feed conveyor belt of the present invention;
FIG. 4 is a schematic view of the structure of the feed conveyor belt of the present invention;
FIG. 5 is a schematic view of the structure of the feed conveyor belt of the present invention;
FIG. 6 is a schematic view of a positioning assembly according to the present invention;
FIG. 7 is a schematic view of the reclaimer mechanism of the present invention;
FIG. 8 is a schematic view of a clamping assembly according to the present invention;
FIG. 9 is a schematic view of a part of the detection mechanism of the present invention;
FIG. 10 is a schematic view of a light source rack according to the present invention;
Fig. 11 is a schematic structural view of a clamping assembly of embodiment 2.
100. A work table; 101. an outer cover; 102. NG product collection boxes; 103. FFU fan; 104. an ion blower; 105. a film covering device; 106. opening and closing doors and windows; 107. producing a conveyor belt; 200. a feed mechanism; 201. a feed conveyor belt; 202. a first slide rail bracket; 203. the 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 feed motor; 210. a transport stick; 211. a rubber belt; 212. a transition roller; 213. a cleaning roller; 214. a guide bar; 215. a first Z-axis cylinder; 216. positioning a platform; 217. a rotary cylinder; 218. a second Z-axis cylinder; 219. a jacking block; 220. the side edge clamps the locating column; 221. a front positioning column; 222. a rear positioning column; 223. a third sensor; 300. a material taking mechanism; 301. a Z-axis sliding 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 sliding rail pair; 309. a two-way clamping arm; 310. a bottom rail; 311. a slide block; 312. a front and back tooth screw rod seat; 313. a screw rod; 314. an "L" shaped block; 315. a soft material; 316. a spring needle; 400. a detection mechanism; 401. a vision camera; 402. a light source; 403. detecting a frame; 404. carrying a Z-axis sliding rail; 405. a transparent stage; 406. a light source rack; 407. detecting an ion fan; 408. a cover plate can be slid.
Detailed Description
In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the drawings of the present invention are in simplified form and utilize inaccurate alignment, and are only used for convenience and clarity in assisting in describing the embodiments of the present invention.
Example 1:
as shown in fig. 1 to 10, the invention discloses a light guide plate detector, which comprises a workbench 100, an outer cover 101, a computer, a NG product collecting box 102, an FFU fan 103, an ion fan 104 and a film covering 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, an opening door and window 106 is arranged on four sides of the outer cover, an opening is arranged on the right side of the 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 laminating device 105 is arranged at the upper part of the workbench 100 and comprises a good product film laminating machine and a defective product film laminating machine; the device also 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 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 component 207 which are respectively and electrically connected with the machine; the feeding conveyer belt 201 is connected with the production conveyer 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 transport roller; the rubber belt 211 is sleeved on the conveying roller; the transition roller 212 is disposed between the transport roller and the rubber belt 211, and contacts the rubber belt 211; the cleaning roller 213 is disposed at the lower portion of the transition roller 212 by a spring, and contacts the transition roller 212, and a tearable adhesive paper is wound around the surface thereof; the first sliding rail bracket 202 is arranged above the feeding conveyer 201; the second sliding rail bracket 203 is disposed in front of the first sliding rail bracket 202; the guide slide plate 204 is slidably connected to the first slide rail bracket 202, and the front side thereof is further provided with guide bars 214 which are respectively unfolded to the front side and the left and right; the first sensor 205 is slidably connected to the second sliding rail bracket 203, and the sensing direction of the first sensor is directed downward; the second sensor 206 is disposed behind the first rail bracket 202 and below the feeding conveyor 201, and the sensing direction of the second sensor is directed upward; the positioning assembly 207 is arranged below the feeding conveyor 201, and comprises a first Z-axis air cylinder 215, a positioning platform 216, a rotary air cylinder 217, a second Z-axis air cylinder 218, a jacking block 219, a side clamping positioning column 220, a front positioning column 221, a rear positioning column 222 and a third sensor 223, wherein the surfaces of the side clamping positioning columns are coated with Teflon coatings; the positioning platform 216 is disposed at an 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 disposed at the rear end of the positioning platform 216; the jack-up block 219 is arranged on the positioning platform 216, and a rubber block is arranged on the surface of the jack-up block 219; the side clamping positioning posts 220 are arranged at the left and right sides of the positioning platform 216 and are in driving connection with the rotary cylinder 217 through hinges; the front positioning column 221 is disposed at the front end of the positioning platform 216; the rear positioning column 222 is disposed at the output end of the second Z-axis cylinder 218; the third sensor 223 is disposed on the front positioning column 221, and the sensing direction thereof is directed upward; in the non-working state of the positioning assembly 207, the front positioning column 221 and the side clamping positioning column 220 extend out of the feeding conveyor belt 201, and the rear positioning column 222 is below the feeding conveyor belt 201;
The extracting mechanism 300 comprises a manipulator and a clamping assembly 305 arranged at the output end of the manipulator; the manipulator selects a four-axis manipulator, and comprises a Z-axis sliding 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 sliding 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 sliding rail pair 308 comprises a bottom sliding rail 310, a sliding block 311, a positive and negative screw 313 seat 312 and a screw 313; the bottom sliding rail 310 is disposed on the front side of the upper portion of the clamping platform 306; the sliding block 311 is slidably connected with the bottom sliding rail 310; the front and back screw 313 seats 312 are respectively arranged on the sliding blocks 311; the screw 313 is sleeved on the positive and negative screw 313 seat 312 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 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 rubber;
The detection mechanism 400 comprises a vision camera 401, a light source 402, a detection frame 403, a carrying Z-axis slide rail 404, a transparent objective table 405, a light source rack 406 and a detection ion fan 407; the detection frame 403 is disposed on the workbench 100, and an opening is disposed on the front side thereof; the object-carrying Z-axis slide rail 404 is disposed in the detection frame 403; the transparent stage 405 is slidably connected to the carrier Z-axis slide rail 404; the light source rack 406 is disposed on the front side of the Z-axis slide rail 301, and is provided with a slidable cover plate 408, by moving the cover plate, the irradiation range of the irradiation light of the light source 402 can be adjusted according to the sizes of different light guide plates, and the light source rack 406 is aligned to the transparent stage 405, so that the light can be irradiated in parallel from the side of the light guide plate, 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 the computer and is respectively arranged above and below the transparent stage 405, and the vision direction is directed to the transparent stage 405; the ion detection fan 407 is disposed at the rear of the detection frame 403, and the wind direction thereof blows into the detection frame 403.
Working principle: 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 by the guide bar 214, and the left and right distances of the light guide plate 204 can be adjusted to adapt to light guide plates with different sizes and specifications; when the light guide plate is blocked by the front positioning column 221, the rotating cylinder 217 in the positioning assembly 207 drives the side clamping positioning column 220 to clamp the light guide plate, 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 column 222 to block the subsequent light guide plate from being transported forward, then the manipulator drives the clamping assembly 305 to transfer the light guide plate on the positioning assembly 207 to the transparent objective table 405 in the detection mechanism 400, then the vision camera 401 collects and sends the light guide plate to a computer for analysis, and whether the light guide plate is scratched, white spot and greasy dirt are analyzed, if the analysis result passes, in the embodiment, the manipulator transfers the light guide plate to a good product laminator of the laminating device 105 for lamination, if the analysis result fails, the manipulator transfers the light guide plate to a bad product laminator of the laminating device 105 for lamination; in addition, the producer can transfer the manipulator to the NG product collection box 102 for collection through the light guide plate which does not pass the inspection when the analysis result does not pass the analysis result, so that the later reworking is facilitated.
Principle of the first, second and third sensors: the first sensor 205 is configured to sense whether the light guide plate is fed into the feeding conveyor 201, and if it is recognized that the light guide plate passes by, send a signal to a computer, and control the computer to speed up the feeding conveyor 201; the second sensor 206 is configured to send a signal to the computer if a light guide plate has been passed, the light guide plate is not lifted by the positioning assembly 207 and is not removed by the feeding mechanism 300, and a new light guide plate is sensed to enter the feeding conveyor 201, and the computer stops the current transportation of the feeding conveyor 201, so as to prevent stacking; the third sensor 223 is configured to send a signal to a computer when it is sensed that the light guide plate is blocked by the front positioning column 221, and the computer controls the rotating cylinder 217 to drive the side clamping positioning column 220 to clamp toward the middle, the first Z-axis cylinder 215 and the second Z-axis cylinder 218 jack up simultaneously, at this time, the light guide plate above the positioning assembly 207 jacked up by the first Z-axis cylinder 215 is taken away by the material taking mechanism 300, and the rear positioning column 222 jacked up by the second Z-axis cylinder 218 can block the light guide plate later, so as to further prevent stacking.
Example 2:
As shown in fig. 11, the present embodiment is substantially the same as the embodiment, and the lower part of the bi-directional 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 rubber; spring pins 316 are arranged in the L-shaped blocks 314, and the elastic direction of the spring pins contacts with the soft material 315; in use, the spring pins 316 can provide a buffering force to further protect the light guide plate when the soft material 315 contacts the light guide plate.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and their equivalents.
Claims (8)
1. A light guide plate detector comprises a workbench, an outer cover, a computer, a NG product collecting box and a film covering device; the outer cover is arranged on the upper part of the workbench, four sides of the outer cover are provided with open-close doors and windows, the right side of the outer cover is provided with an opening, the right side of the opening is connected with the production conveyor belt, and the NG product collecting box is arranged on the workbench; the film laminating device is arranged on the workbench and comprises a good product film laminating machine and a defective product film laminating machine; the method is characterized in that: the device also comprises a feeding mechanism, a material taking mechanism and a detection mechanism which are arranged on the workbench;
The feeding mechanism comprises a feeding conveyor belt and a positioning assembly; the feeding conveyor belt is connected with the production conveyor belt; the feeding mechanism further comprises a first sliding rail bracket, a second sliding rail bracket, a guide sliding plate, a first sensor and a second sensor which are respectively and electrically connected with the computer; the first sliding rail support is arranged above the feeding conveyor belt; the second sliding rail bracket is arranged in front of the first sliding rail bracket; the guide slide plate is connected to the first slide rail bracket in a sliding way, and the front side of the guide slide plate is also provided with guide strips which are respectively unfolded to the left and right of the front side; the first sensor is connected to the second sliding rail bracket in a sliding way, and the induction direction of the first sensor is directed downwards; the second sensor is arranged behind the first sliding rail bracket and is positioned below the feeding conveyor belt, and the induction direction of the second sensor is upwards;
The positioning assembly is arranged below the feeding conveyor belt and used for positioning and lifting the light guide plate conveyed to the upper side of the feeding conveyor belt from the feeding conveyor belt, and comprises a first Z-axis cylinder, a positioning platform, a rotating 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 air 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 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 induction direction of the third sensor is upwards;
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 vision camera and a light source; the visual camera is electrically connected with the computer and used for picking up images of the light guide plate and sending the images to the computer for analysis, the light guide plate is transferred to the good product film laminating machine for film lamination by the material taking mechanism when the analysis result passes, and the light guide plate is transferred to the defective product film laminating machine for film lamination or the NG product collecting box for collection by the material taking mechanism when the analysis result does not pass.
2. The light guide plate inspection machine according to claim 1, wherein: the manipulator is a four-axis manipulator and comprises a Z-axis sliding 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 sliding rail in a sliding manner; the second R-axis swing arm is in driving connection with the first R-axis swing arm; the third R-axis swing arm is in driving connection with the second R-axis swing arm.
3. 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 at 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.
4. A light guide plate inspection machine according to claim 3, wherein: the sliding rail pair comprises a bottom sliding rail, a sliding block, a positive and negative tooth screw rod seat and a screw rod; the bottom sliding rail is arranged at 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 way; the positive and negative tooth screw rod seats are respectively arranged on the sliding blocks; the screw rod is sleeved on the positive and negative tooth screw rod seat and is in driving connection with the synchronous motor through a synchronous belt; the two-way clamping arms are respectively arranged on the front and back tooth screw rod seat.
5. A light guide plate inspection machine according to claim 3, wherein: the lower part of the two-way clamping arm is provided with an L-shaped block; the L-shaped block is provided with a soft material.
6. The light guide plate inspection machine according to claim 5, wherein: spring pins are arranged in the L-shaped blocks, and the elastic directions of the spring pins are contacted with the soft material.
7. The light guide plate inspection machine according to claim 1, wherein: the detection mechanism further comprises a detection frame body, a carrying Z-axis sliding rail, a transparent objective 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 sliding rail is arranged in the detection frame body; the transparent objective table is connected to the object carrying Z-axis sliding rail in a sliding manner; the light source rack is arranged on the front side of the Z-axis sliding rail; the light source is arranged in the light source frame; the visual camera is respectively arranged above and below the transparent object stage, and the visual direction points to the transparent object stage.
8. The light guide plate inspection machine according to claim 7, 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.
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| CN201911409474.0A CN110967347B (en) | 2019-12-31 | 2019-12-31 | Light guide plate detects machine |
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| CN201911409474.0A CN110967347B (en) | 2019-12-31 | 2019-12-31 | Light guide plate detects machine |
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| CN110967347A CN110967347A (en) | 2020-04-07 |
| CN110967347B true CN110967347B (en) | 2024-05-28 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112209057A (en) * | 2020-10-17 | 2021-01-12 | 东莞科卓机器人有限公司 | A FPC light strip feeding 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 |
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