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CN-122016259-A - Optical diffusion sheet detection equipment and detection method thereof

CN122016259ACN 122016259 ACN122016259 ACN 122016259ACN-122016259-A

Abstract

The invention relates to the technical field of optical diffusion sheet processing, in particular to optical diffusion sheet detection equipment and a detection method thereof, the optical diffusion sheet detection equipment comprises a bottom frame, wherein the top of the bottom frame is fixedly connected with a detection table, the front side of the top of the detection table is provided with a dust removing mechanism, the bottom frame comprises a support frame, and the left side and the right side of the inner side of the support frame are both movably connected with a collecting and expanding piece.

Inventors

  • DING WANG
  • QIN HONGWEI
  • WEI CHUNCHENG
  • ZHAO BING
  • YANG HUI
  • WEI QING
  • Zhang Huatuo

Assignees

  • 南京强联光电科技有限公司

Dates

Publication Date
20260512
Application Date
20260403

Claims (10)

  1. 1. The optical diffusion sheet detection equipment comprises a bottom frame (1) and is characterized in that a detection table (2) is fixedly connected to the top of the bottom frame (1), a dust removing mechanism (3) is arranged on the front side of the top of the detection table (2), and a laser measuring instrument (4) is fixedly connected to the top of the rear side of the dust removing mechanism (3); The underframe (1) comprises a supporting frame (11), and the left side and the right side of the inner side of the supporting frame (11) are both movably connected with a retracting and expanding piece (12); the detection table (2) comprises a conveying table plate (21), conveying table side plates (22) are fixedly connected to the left side and the right side of the conveying table plate (21), the front side of the middle part of the conveying table plate (21) is in a hollowed-out design, and an adsorption pipe (23) is rotatably connected to the inner wall of the front side of the middle part of the conveying table plate (21); the dust removing mechanism (3) comprises a clean gas storage barrel (31), storage barrel connecting plates (32) are fixedly connected to the tops of the left side and the right side of the outer wall of the clean gas storage barrel (31), and L-shaped vertical support side plates (33) are fixedly connected to the rear sides of the outer sides of the two storage barrel connecting plates (32).
  2. 2. The optical diffuser detection device according to claim 1, wherein the support frame (11) comprises two groups of L-shaped side vertical plates (111), the bottoms of the outer sides of the L-shaped side vertical plates (111) are fixedly connected with outer connecting side plates (112), the tops of the front and rear groups of L-shaped side vertical plates (111) are fixedly connected with top transverse plates (113), the left and right sides of the tops of the two top transverse plates (113) are fixedly connected with U-shaped side vertical plates (114), the tops and the bottoms of the inner sides of the left and right groups of U-shaped side vertical plates (114) are fixedly connected with columnar cross bars (115), the tops of the outer sides of the front and rear groups of U-shaped side vertical plates (114) are fixedly connected with supporting plates (116), the left and right sides of the inner sides of the two top transverse plates (113) are fixedly connected with concave side plates (117), and the middle parts of the inner sides of the two concave side plates (117) are fixedly connected with hinge blocks (118).
  3. 3. The optical diffusion sheet detection device according to claim 2, wherein the inner sides of the left and right groups of L-shaped side vertical plates (111) are fixedly connected with guide side plates (1112), the rear bottoms of the rear two groups of L-shaped side vertical plates (111) are fixedly connected with rear connecting transverse plates (119), the middle part of the bottom of each rear connecting transverse plate (119) is fixedly connected with an electric push rod (1110), the middle part of the top of each rear connecting transverse plate (119) is fixedly connected with a concave sliding groove block (1111), the inner wall of each concave sliding groove block (1111) is slidably connected with a push-pull rod (1113), the front side of each push-pull rod (1113) is fixedly connected with a triangular retaining plate (1114), the front side to the rear side of each triangular retaining plate (1115) are designed from narrow to wide, and the front bottom of each push-pull block connecting block (1115) is fixedly connected with the rear end of each electric push rod (1110).
  4. 4. The optical diffusion sheet detection device according to claim 1, wherein the two collecting and expanding pieces (12) comprise collecting and expanding side plates (121), the two collecting and expanding side plates (121) are fixedly connected with T-shaped connecting plates (122) at the top of the outer sides, four sides of the collecting and expanding side plates (121) are slidably connected to the left side and the right side of the outer walls of the two groups of columnar crossbars (115), springs (127) are fixedly connected to the front side and the rear side of the outer sides of the T-shaped connecting plates (122), the outer ends of the springs (127) are fixedly connected to the two sides of the inner sides of the two concave side plates (117), arc-shaped rotating rods (123) are rotatably connected to the middle of the outer walls of the two T-shaped connecting plates (122), rotating rods (124) are rotatably connected to the bottoms of the inner sides of the two arc-shaped rotating rods (123), two rotating rods (124) are fixedly connected to the front side and the two guide pulleys (125) are rotatably connected to the middle of the two collecting and expanding side plates (125), and the two guide pulleys (125) are rotatably connected to the middle of the two inner sides of the collecting and expanding side plates (125).
  5. 5. The optical diffuser inspection apparatus according to claim 1, wherein both sides of the bottom of the transfer platen (21) are fixedly connected to the top middle parts of two support plates (116), both front sides of the top of two transfer platen side plates (22) are fixedly connected with concave side guide blocks (24), both front and rear sides of the top of two transfer platen side plates (22) at the rear sides of the concave side guide blocks (24) are fixedly connected with second concave side guide blocks (25), both rear sides of the top of two transfer platen side plates (22) are fixedly connected with vertical L-shaped connection side plates (2111), both front sides of the inner side top of the two vertical L-shaped connection side plates (2111) are fixedly connected with stock pipes (26), both rear sides of the inner sides of the two transfer platen side plates (22) are fixedly connected with inverted concave guide block connecting plates (27), both left and right sides of the rear sides of the bottom of the transfer platen side plates (21) are fixedly connected with inverted concave guide blocks (28), and both sides of the bottom of the transfer platen side plates (22) are fixedly connected with rotary control plates (2112).
  6. 6. The optical diffuser inspection apparatus according to claim 5, wherein the inner wall of the inverted concave guide block (28) is slidably connected with a semicircular push plate push rod (210), the front side of the semicircular push plate push rod (210) is fixedly connected with a semicircular push plate (211), the rear top side of the semicircular push plate push rod (210) is fixedly connected with a rectangular upright (212), the rear sides of the left and right sides of the semicircular push plate push rod (210) are rotatably connected with rotating side plates (213), the outer middle parts of the two rotating side plates (213) are rotatably connected to the inner sides of the two hinged side plates (29), the bottoms of the inner sides of the two rotating side plates (213) are rotatably connected to the left and right sides of a push-pull block connecting block (1115), the inner sides of the two concave side guide blocks (24) are slidably connected with arc-shaped limiting plate connecting rods (218), the inner sides of the two arc-shaped limiting plate connecting rods (218) are fixedly connected with arc-shaped limiting plates (219), the inner sides of the two arc-shaped limiting plates (219) are rotatably connected with the inner sides of the two arc-shaped limiting plates (219), the two inverted L-shaped side plates (216) are fixedly connected with the inner sides of the two inverted L-shaped limiting plates (216), the inner sides of the two reverse L-shaped side plate expanding and contracting rods (216) are fixedly connected to the outer sides of the two expanding and contracting side plates (121).
  7. 7. The apparatus for detecting an optical diffusion sheet according to claim 5, wherein the inner sides of the left and right sets of second concave side guide blocks (25) are slidably connected with slide bars (214), the inner sides of the left and right sets of slide bars (214) are fixedly connected with limiting plates (215), bottoms of the two limiting plates (215) are slidably connected to left and right sides of the rear side of the top of the conveying table plate (21), and the outer sides of the front side of the two slide bars (214) are fixedly connected to the middle parts of the rear sides of the inner sides of the two inverted L-shaped side plates (217).
  8. 8. The optical diffusion sheet detection device according to claim 1, wherein bottoms of inner sides of the two L-shaped vertical support side plates (33) are fixedly connected to front sides of outer sides of the two conveying table side plates (22), middle portions of inner sides of the two L-shaped vertical support side plates (33) are fixedly connected with L-shaped connecting blocks (34), air exhaust pipes (35) are fixedly connected to inner sides of the two L-shaped connecting blocks (34), air exhaust pipe ventilation pipes (36) are fixedly connected to tops of outer walls of the air exhaust pipes (35), air supply pipes (37) are fixedly connected to bottoms of the clean gas storage barrel (31) at tops of the air exhaust pipe ventilation pipes (36), pistons (312) are fixedly connected to inner walls of the air exhaust pipes (35), columnar push-pull rods (313) are fixedly connected to front sides of the pistons (312), push-pull rod connection plates (314) are fixedly connected to inner sides of the columnar push-pull rods (314), and left and right sides of the columnar push-pull rods (314) are fixedly connected to left side plates and right side plates (315) of the two L-shaped inner sides of the air exhaust pipes (35) are fixedly connected to the tops of the two L-shaped vertical plates (315).
  9. 9. The optical diffusion sheet detection device according to claim 8, wherein the top of the inner sides of the two L-shaped vertical support side plates (33) is fixedly connected with a convex plate side plate (38), the rear sides of the two convex plate side plates (38) are fixedly connected with a convex joint plate (39), the front side of the convex joint plate (39) is fixedly connected with a mechanical arm (310), the bottom end of the mechanical arm (310) is fixedly connected with an air suction nozzle (311), the outer wall of the air suction nozzle (311) is fixedly connected with one end, far away from an air suction pipe (35), of an air supply pipeline (37), and the bottom of the air suction nozzle (311) is aligned with the top of an adsorption pipe (23).
  10. 10. An optical diffusion sheet detection apparatus and a detection method thereof, according to any one of claims 1 to 9, characterized in that: The method comprises the following steps: Placing a group of optical diffusion sheets in a storage pipe (26), and enabling the bottommost optical diffusion sheet to fall to the top of a conveying platen (21) and be attached to the front side of a semicircular push plate (211); Starting an electric push rod (1110), pushing a push-pull block connecting block (1115) to move to the rear side, driving a push-pull rod (1113) and a triangular abutting plate (1114) to move backwards, enabling two retracting and expanding blocks (125) to slide to two sides along a guide side plate (1112), driving a rotating rod (124) and an arc-shaped rotating rod (123) to rotate, enabling a retracting and expanding side plate (121) to slide to two sides on a columnar cross rod (115), and compressing a spring (127); The two expansion side plates (121) move outwards to drive the two reverse L-shaped side plate expansion rods (216) to move outwards to push the two reverse L-shaped side plates (217) to move outwards, the two arc-shaped limiting plate connecting rods (218) are driven by the two reverse L-shaped side plates (217) to drive the two arc-shaped limiting plates (219) to move outwards, so that the adsorption pipe (23) is opened, and meanwhile, the two reverse L-shaped side plate expansion rods (216) are driven to drive the two limiting plates (215) to slide outwards at the top of the conveying platen (21) to release the limit of optical diffusion sheets falling on the top of the conveying platen (21); The push-pull block connecting block (1115) moves to the rear side to drive the rotating side plate (213) to rotate, the semicircular push plate push rod (210) and the semicircular push plate (211) are pushed to move to the front side, and the semicircular push plate (211) pushes the bottommost optical diffusion sheet to move to the front side to the upper part of the adsorption tube (23); Starting an adsorption pipe (23), adsorbing and fixing an optical diffusion sheet, enabling an electric push rod (1110) to move reversely, enabling two collecting and expanding side plates (121) to reset, enabling two arc-shaped limiting plate connecting rods (218) to push two arc-shaped limiting plates (219) to reset, enabling a plurality of rotating wheels (2110) on the inner side to be attached to the outer wall of the optical diffusion sheet adsorbed on the top of the adsorption pipe (23), further limiting a lens, enabling two inverted-L-shaped side plate collecting and expanding rods (216) to push two limiting plates (215) to reset inwards, enabling two sides of the outer wall of the optical diffusion sheet which is newly fallen from a storage pipe (26) to be attached to limit, and enabling a semicircular push plate push rod (210) and a semicircular push plate (211) to reset for the next pushing operation; A semicircular push plate push rod (210) pushes a semicircular push plate (211) to push an optical diffusion sheet to the top of an adsorption tube (23) and simultaneously drives a rectangular upright rod (212) to move forwards, the rectangular upright rod (212) drives an L-shaped push-pull side plate (315) to move forwards, the L-shaped push-pull side plate (315) drives a columnar push-pull rod connecting plate (314) to move forwards, the columnar push-pull rod connecting plate (314) drives a columnar push-pull rod (313) to move forwards, the columnar push-pull rod (313) drives a piston (312) to slide forwards in an exhaust tube (35), and gas in a clean gas storage barrel (31) is pumped into the exhaust tube (35) through an exhaust tube ventilation pipeline (36); The semicircular push plate push rod (210) and the semicircular push plate (211) are reset to enable the rectangular upright rod (212) to move to the rear side, the rectangular upright rod (212) drives the L-shaped push-pull side plate (315) to move to the rear side, the L-shaped push-pull side plate (315) drives the columnar push-pull rod connecting plate (314) to move to the rear side, the columnar push-pull rod connecting plate (314) drives the columnar push-pull rod (313) to move to the rear side, the columnar push-pull rod (313) drives the piston (312) to slide to the rear side in the exhaust pipe (35), gas pumped in the exhaust pipe (35) is pushed to the exhaust nozzle (311) through the gas supply pipeline (37), and clean gas is controlled to be uniformly sprayed from the exhaust nozzle (311) to an optical diffusion sheet positioned at the top of the adsorption pipe (23) through the mechanical arm (310); step eight, starting a rotation control piece (2112), driving an adsorption pipe (23) to rotate, and further driving an optical diffusion sheet with the top adsorbed and fixed to rotate at a constant speed, so that a dust removing mechanism (3) can spray clean gas onto the whole surface of the optical diffusion sheet more uniformly, at the moment, a laser measuring instrument (4) starts to detect the optical diffusion sheet, and a laser beam emitted by the laser measuring instrument (4) is accurately projected onto the surface of the optical diffusion sheet after dust removal treatment; And step nine, after the group of optical diffusion sheets are sprayed to the completion, the device automatically performs the operations of placing, limiting, adsorbing and dedusting detection of the next group of optical diffusion sheets.

Description

Optical diffusion sheet detection equipment and detection method thereof Technical Field The invention relates to the technical field of optical diffusion sheet processing, in particular to optical diffusion sheet detection equipment and a detection method thereof. Background An optical diffusion sheet refers to an optical element that can scatter and diffuse light, thereby changing the propagation direction and distribution of the light. It has wide application in liquid crystal display, lighting, projection and other fields. In the field of liquid crystal display, the optical diffusion sheet can homogenize light rays emitted by a backlight source, reduce uneven brightness and improve the quality and visual effect of a display picture. In the field of illumination, the lamp light can be softer and more uniform, dazzling glare is avoided, and a comfortable illumination environment is created. The principle is mainly based on the scattering effect of the microstructure in the material on light, and different microstructures and material characteristics can lead to the optical diffusion sheet to have different diffusion properties and optical effects. According to patent document CN116593138B, an optical diffusion sheet detection device and a detection method thereof are disclosed. The device comprises a mounting seat, an irradiation lamp and a curtain wall, wherein the irradiation lamp and the curtain wall are arranged on two sides of the mounting seat, the mounting seat is provided with a motor, the device further comprises a horizontal moving assembly, the horizontal moving assembly is arranged on the mounting seat and used for driving the irradiation lamp to horizontally reciprocate, a plurality of positions of the same height of a diffusion sheet are sequentially detected, the device comprises a rotary table which is connected with the motor in a power mode, a fixed column which is used for stirring the horizontal reciprocating movement of the irradiation lamp is eccentrically arranged on the rotary table, an intermittent gear is arranged on the rotary table, the irradiation lamp is further provided with a shifting rod which is movably arranged, a first resistor and a second resistor which are used for adjusting access current are arranged on the shifting rod, the vertical moving assembly is used for lifting the diffusion sheet to sequentially detect positions of different heights, and a supporting plate which is matched with the intermittent gear and intermittently lifts the diffusion sheet is movably arranged on the fixing frame. The invention sequentially detects a plurality of positions of the diffusion sheet, and detects different brightness, so that the detection is more accurate and comprehensive. When an optical diffusion sheet is detected, the optical diffusion sheet is usually taken out from a processing production line by a worker, and then laser measurement work is carried out, however, during the processing of the optical diffusion sheet, floating dust impurities may occur, and the floating dust impurities may adhere to the surface of the optical diffusion sheet, further affect the subsequent laser measurement result, for example, the floating dust impurities may scatter or absorb laser, so that the measured data such as light intensity, light distribution and the like deviate, and the measured result cannot accurately reflect the real performance of the optical diffusion sheet. Disclosure of Invention In order to overcome the defects of the prior art, the invention provides an optical diffusion sheet detection device and a detection method thereof, and aims to solve the technical problems that floating dust impurities possibly appear in the processing process of an optical diffusion sheet, the floating dust impurities can adhere to the surface of the optical diffusion sheet and further influence the subsequent laser measurement result, for example, the floating dust impurities can scatter or absorb laser, so that the measured data such as light intensity, light distribution and the like deviate, the measurement result cannot accurately reflect the real performance of the optical diffusion sheet, and in addition, in the traditional manual extraction detection mode, new impurities can be further introduced in the operation process of workers or slight damage is caused on the surface of the optical diffusion sheet, and the detection accuracy is also adversely affected. In order to solve the technical problems, the invention adopts the following technical scheme: the optical diffusion sheet detection equipment comprises a bottom frame, wherein the top of the bottom frame is fixedly connected with a detection table, the front side of the top of the detection table is provided with a dust removing mechanism, and the top of the rear side of the dust removing mechanism is fixedly connected with a laser measuring instrument; The underframe comprises a supporting frame, and the left side and the righ