阅读说明：本技术 一种背光源生产用具有破损识别功能的贴膜装置 (Backlight production is with pad pasting device that has damage recognition function ) 是由 倪春 张俊 于 2021-08-18 设计创作，主要内容包括：本发明公开了一种背光源生产用具有破损识别功能的贴膜装置,涉及背光源生产技术领域,包括承载组件和筛选组件,所述承载组件的上端左侧后端设置有贴膜机构,且承载组件的上端中部设置有转运组件。本发明通过设置在承载块上端的四个调节块,通过调节槽和调节旋钮便于进行之间间距的调节,从而达到对不同尺寸背光源的限位效果,设置在限位槽上表面的防护层,可以有效防止背光源在贴膜过程中表面出现划痕的情况,同时设置在承载块两侧中部的第二检测摄像头,可以对贴膜过程中及贴膜完成的背光源进行实时的监测,当检测出有褶皱、气泡、破损的背光源,设置在第二检测摄像头外侧的状态指示灯亮起,便于筛选组件对贴膜完成的背光源进行区分输送。(The invention discloses a film pasting device with a damage identification function for backlight production, which relates to the technical field of backlight production and comprises a bearing component and a screening component, wherein a film pasting mechanism is arranged at the rear end of the left side of the upper end of the bearing component, and a transfer component is arranged in the middle of the upper end of the bearing component. According to the invention, the four adjusting blocks arranged at the upper end of the bearing block are used for conveniently adjusting the spacing between the backlight sources through the adjusting grooves and the adjusting knobs, so that the limiting effect on the backlight sources with different sizes is achieved, the protective layer arranged on the upper surface of the limiting groove can effectively prevent the backlight sources from being scratched on the surface in the film pasting process, meanwhile, the second detection cameras arranged in the middle parts of the two sides of the bearing block can monitor the backlight sources in the film pasting process and completed film pasting in real time, and when the backlight sources with wrinkles, bubbles and damages are detected, the status indicator lamps arranged on the outer sides of the second detection cameras are lightened, so that the screening component can conveniently distinguish and convey the backlight sources completed film pasting.)

1. The film sticking device with the damage identification function for the backlight production is characterized by comprising a bearing component (1) and a screening component (4), wherein a film sticking mechanism (2) is arranged at the rear end of the left side of the upper end of the bearing component (1), a transfer component (3) is arranged in the middle of the upper end of the bearing component (1), the transfer component (3) comprises a bearing turntable (301), a driving motor (302), a bearing block (303), a fastening bolt (304), an adjusting groove (305), an adjusting block (306), an adjusting knob (307), a limiting groove (308), a protective layer (309), an infrared sensor (3010), a second detection camera (3011) and a state indicator lamp (3012), the driving motor (302) is connected to the central position of the lower end of the bearing turntable (301), the bearing block (303) is arranged at the upper end of the bearing turntable (301), and the bearing block (303) is connected with the bearing turntable (301) through the fastening bolt (304), adjusting groove (305) have been seted up to the upper end inboard of carrier block (303), and the upper end of adjusting groove (305) is connected with regulating block (306), adjust knob (307) are worn to be equipped with in the both sides of regulating block (306), and the one corner of regulating block (306) is provided with spacing groove (308), the surface of spacing groove (308) is provided with inoxidizing coating (309), the upper end central point of carrier block (303) puts and is provided with infrared sensor (3010), and the both sides middle part of carrier block (303) is provided with second and detects camera (3011), the outside that the second detected camera (3011) distributes and has status indicator (3012), screening subassembly (4) set up in the upper end right side middle part of carrier subassembly (1).

2. The film sticking device with the damage identification function for the backlight production according to claim 1, wherein the bearing assembly (1) comprises a bearing seat (101), a feeding conveyer belt (102), a qualified product conveyer belt (103) and a defective product conveyer belt (104), the feeding conveyer belt (102) is arranged in the middle of the left side of the upper end of the bearing seat (101), the qualified product conveyer belt (103) is arranged at the rear part of the right side of the upper end of the bearing seat (101), and the defective product conveyer belt (104) is arranged at the front part of the right side of the upper end of the bearing seat (101).

3. The film sticking device with the damage identification function for the backlight production according to claim 2, wherein a central axis of the feeding conveyor belt (102) coincides with a central axis of the bearing seat (101), and the feeding conveyor belt (102), the qualified product conveyor belt (103) and the unqualified product conveyor belt (104) are distributed in the same horizontal height.

4. The film sticking device with the damage identification function for the backlight production according to claim 1, wherein the film sticking mechanism (2) comprises a placing seat (201), a placing cross rail (202), an X-axis moving assembly (203), a sticking cylinder (204), a first detection camera (205), a connecting plate (206), a first suction cup (207) and a connecting bolt (208), the placing cross rail (202) is arranged on the upper portion of the front end of the placing seat (201), the X-axis moving assembly (203) is connected to the lower end of the placing cross rail (202), the sticking cylinder (204) is arranged on the inner side of the lower end of the X-axis moving assembly (203), the first detection camera (205) is arranged on two sides of the outer portion of the lower end of the X-axis moving assembly (203), the connecting plate (206) is connected to the lower end of the sticking cylinder (204), and the first suction cup (207) is connected to the lower end of the connecting plate (206), the first suction cup (207) is connected with the connecting plate (206) through a connecting bolt (208).

5. The film sticking device with the damage identification function for the backlight source production according to claim 4, wherein two first detection cameras (205) are symmetrically arranged about the center position of the X-axis moving assembly (203), the vertical central axis of the sticking cylinder (204) coincides with the vertical central axis of the X-axis moving assembly (203), the connecting plates (206) and the sticking cylinder (204) are vertically distributed, and the first suction cups (207) are in threaded connection with the connecting plates (206) through connecting bolts (208).

6. The film sticking device with the breakage identification function for the backlight production according to claim 1, wherein the bearing blocks (303) are equidistantly distributed at the upper end of the bearing turntable (301), four bearing blocks (303) are arranged, and the infrared sensor (3010) is connected with the bearing blocks (303) in an embedded manner.

7. The film sticking device with the damage identification function for the backlight production according to claim 1, wherein the adjusting block (306) is connected with the bearing block (303) in a sliding manner through the adjusting groove (305) and the adjusting knob (307), the limiting groove (308) and the adjusting block (306) are in an integrated structure, and the protective layer (309) and the limiting groove (308) are fixedly connected.

8. The film sticking device with the damage identification function for the backlight production according to claim 1, wherein the screening component (4) comprises a servo motor (401), a mounting disc (402), a driving slide rail (403), a driving slide block (404), a driving air cylinder (405), an engagement cross block (406), a mounting frame (407), a limiting slide rail (408), a limiting slide plate (409), a second sucking disc (4010), a mounting bolt (4011), a stroke air cylinder (4012) and a third detection camera (4013), the upper end of the servo motor (401) is connected with the mounting disc (402), the upper end of the mounting disc (402) is provided with the driving slide rail (402), the upper end of the driving slide rail (403) is connected with the driving slide block (404), one side of the driving slide block (404) is connected with the driving air cylinder (405), and the other side of the driving slide block (404) is connected with the engagement cross block (406), the lower extreme that links up horizontal piece (406) is provided with settles frame (407), and the inside both sides of settling frame (407) are provided with spacing slide rail (408), the outside of spacing slide rail (408) is connected with spacing slide plate (409), and the lower extreme of spacing slide plate (409) is connected with second sucking disc (4010), second sucking disc (4010) are connected with spacing slide plate (409) through settling bolt (4011), and the upper end central point of spacing slide plate (409) puts and is connected with stroke cylinder (4012), the outside of settling frame (407) is provided with third and detects camera (4013).

9. The film sticking device with the breakage recognition function for backlight production according to claim 8, wherein the driving slide rails (403) and the mounting tray (402) are distributed in parallel, and the connecting cross block (406) passes through the driving slider (404) and the driving cylinder (405) and is in a sliding structure with the driving slide rails (403).

10. The film pasting device with the damage recognition function for the backlight production as claimed in claim 8, wherein the limiting sliding plate (409) is vertically distributed with the stroke cylinder (4012), the second sucking discs (4010) are distributed in parallel with the limiting sliding plate (409), and two limiting sliding rails (408) are symmetrically arranged with respect to the center position of the limiting sliding plate (409).

Technical Field

The invention relates to the technical field of intelligent manufacturing of backlight sources, in particular to a film sticking device with a damage identification function for backlight source production.

Background

BackLight (BackLight) is a light source located behind a Liquid Crystal Display (LCD), and its lighting effect directly affects the visual effect of the liquid crystal display module (LCM). The liquid crystal display does not emit light, displays a pattern or modulates light, and needs to be pasted with a film in the production process of the backlight source, and a film pasting device is needed.

The film sticking device for backlight production in the market has the defects that the film sticking device does not have a damage identification function and cannot identify and distinguish damaged films.

Disclosure of Invention

The present invention is directed to a film sticking device with a damage recognition function for backlight production, which solves the problem that the film sticking device for backlight production proposed in the background art does not have a damage recognition function and cannot recognize and distinguish a damaged film.

In order to achieve the purpose, the invention provides the following technical scheme: a film sticking device with a damage identification function for backlight production comprises a bearing component and a screening component, wherein a film sticking mechanism is arranged at the rear end of the left side of the upper end of the bearing component, a transfer component is arranged in the middle of the upper end of the bearing component, the transfer component comprises a bearing turntable, a driving motor, a bearing block, a fastening bolt, an adjusting groove, an adjusting block, an adjusting knob, a limiting groove, a protective layer, an infrared sensor, a second detection camera and a status indicator lamp, the driving motor is connected to the central position of the lower end of the bearing turntable, the bearing block is arranged at the upper end of the bearing turntable and connected with the bearing turntable through the fastening bolt, the adjusting groove is formed in the inner side of the upper end of the bearing block, the adjusting block is connected with the upper end of the adjusting groove, the adjusting knob is arranged on two sides of the adjusting block in a penetrating manner, and the limiting groove is formed in one corner of the adjusting block, the surface of spacing groove is provided with the inoxidizing coating, the upper end central point of carrier block puts and is provided with infrared sensor, and the both sides middle part of carrier block is provided with the second and detects the camera, the outside distribution that the second detected the camera has status indicator, the screening subassembly sets up in the upper end right side middle part of carrier assembly.

Preferably, the bearing assembly comprises a bearing seat, a feeding conveying belt, a qualified product conveying belt and an unqualified product conveying belt, the middle of the left side of the upper end of the bearing seat is provided with the feeding conveying belt, the rear part of the right side of the upper end of the bearing seat is provided with the qualified product conveying belt, and the front part of the right side of the upper end of the bearing seat is provided with the unqualified product conveying belt.

Preferably, the central axis of the feeding conveyer belt coincides with the central axis of the bearing seat, and the feeding conveyer belt, the qualified product conveyer belt and the unqualified product conveyer belt are distributed at the same horizontal height.

Preferably, pad pasting mechanism is including the arrangement seat, settle the cross rail, X axle removes subassembly, laminating cylinder, first detection camera, joint board, first sucking disc and connecting bolt, and the front end upper portion of arrangement seat is provided with the arrangement cross rail, the lower extreme of settling the cross rail is connected with X axle and removes the subassembly, and the lower extreme inboard that X axle removed the subassembly is provided with the laminating cylinder, the outside both sides of lower extreme that X axle removed the subassembly are provided with first detection camera, the lower extreme of laminating cylinder is connected with the joint board, and the lower extreme of joint board is connected with first sucking disc, first sucking disc is connected with the joint board through connecting bolt.

Preferably, the first detection camera is provided with two about the central position symmetry of X axle removal subassembly, and the vertical axis of laminating cylinder coincides mutually with the vertical axis of X axle removal subassembly, and the joint plate is vertical form distribution with the laminating cylinder simultaneously to be threaded connection between first sucking disc passes through connecting bolt and the joint plate.

Preferably, the bearing blocks are equidistantly distributed at the upper end of the bearing turntable, the number of the bearing blocks is four, and the infrared sensors are connected with the bearing blocks in an embedded manner.

Preferably, the adjusting block is in sliding connection with the bearing block through the adjusting groove and the adjusting knob, the limiting groove and the adjusting block are in an integrated structure, and the protective layer and the limiting groove are fixedly connected.

Preferably, the screening assembly comprises a servo motor, a mounting disc, a driving slide rail, a driving slider, a driving cylinder, a linking transverse block, a mounting frame, a limiting slide rail, a limiting slide plate, a second sucker, a mounting bolt, a stroke cylinder and a third detection camera, the upper end of the servo motor is connected with the mounting disc, the upper end of the mounting disc is provided with the driving slide rail, the upper end of the driving slide rail is connected with the driving slider, one side of the driving slider is connected with the driving cylinder, the other side of the driving slider is connected with the linking transverse block, the lower end of the linking transverse block is provided with the mounting frame, the limiting slide rail is arranged on two sides of the interior of the mounting frame, the outer side of the limiting slide rail is connected with the limiting slide plate, the lower end of the limiting slide plate is connected with the second sucker, the second sucker is connected with the limiting slide plate through the mounting bolt, and the central position of the upper end of the limiting slide plate is connected with the stroke cylinder, and a third detection camera is arranged outside the mounting frame.

Preferably, the drive slide rail is parallel with the installation sabot and is distributed, and the linking transverse block passes through the drive slider and is sliding structure between drive cylinder and the drive slide rail.

Preferably, the limiting sliding plate and the stroke cylinder are vertically distributed, the second sucker and the limiting sliding plate are distributed in a parallel mode, and the two limiting sliding rails are symmetrically arranged at the center of the limiting sliding plate.

The invention provides a film pasting device with a damage identification function for backlight production, which has the following beneficial effects: the film sticking device with the damage identification function for the backlight source production realizes full-intelligent manufacturing control of the film sticking process of the backlight source through mutual matching of a plurality of components, does not need workers to manually feed the backlight source and the film, can monitor the film feeding process and the laminating process in real time, ensures the integrity of the film, can detect the surface of the film-stuck backlight source, can screen bubbles, wrinkles and damaged backlight source films, and can distinguish and convey the bubbles, the wrinkles and the damaged backlight source films, thereby improving the actual use effect of the film sticking device;

1. according to the film body feeding device, the film body, the qualified product conveying belt and the unqualified product conveying belt are arranged at the upper end of the bearing seat, so that the conveying work of the film body, the qualified backlight source and the unqualified backlight source can be realized, the accuracy of the positions between the feeding conveying belt and the bearing seat with the coincident central axes can be ensured, the continuity and the effectiveness of the film body feeding work are ensured, and meanwhile, the feeding conveying belt, the qualified product conveying belt and the unqualified product conveying belt are distributed at the same horizontal plane height, so that the stability of the whole film sticking device in the work process is better, and the film sticking efficiency of the backlight source is convenient to improve.

2. According to the invention, the first detection cameras arranged on two sides of the outer part of the lower end of the X-axis moving assembly can be used for detecting the position of the membrane body conveyed by the upper end of the feeding conveying belt, so that the first suction disc can be ensured to be accurately sucked and clamped under the driving of the laminating cylinder and the X-axis moving assembly, the condition that the laminating precision between the membrane body and a backlight source is influenced due to the deviation of the sucking and clamping position is avoided, and the first suction disc connected with the connecting plate through the connecting bolt is convenient to replace the first suction disc with the corresponding model according to the size of the membrane body to be actually laminated, so that the best actual using effect is achieved.

3. According to the invention, the four bearing blocks arranged at the upper end of the bearing turntable are matched with the driving motor to drive the bearing turntable to rotate clockwise, so that the film sticking device can carry out continuous film sticking work, thereby improving the production efficiency of the backlight source, the infrared sensor arranged at the central position of the upper end of the bearing block can detect whether the backlight source is placed at the upper end of the bearing block in real time, thereby controlling the rotation work of the bearing turntable, so that the linkage between the structures is stronger, and the bearing block connected with the bearing turntable through the fastening bolt is convenient for being matched with the model to change.

4. According to the invention, the four adjusting blocks arranged at the upper end of the bearing block are used for conveniently adjusting the spacing between the backlight sources through the adjusting grooves and the adjusting knobs, so that the limiting effect on the backlight sources with different sizes is achieved, the protective layer arranged on the upper surface of the limiting groove can effectively prevent the backlight sources from being scratched on the surface in the film pasting process, meanwhile, the second detection cameras arranged in the middle parts of the two sides of the bearing block can monitor the backlight sources in the film pasting process and completed film pasting in real time, and when the backlight sources with wrinkles, bubbles and damages are detected, the status indicator lamps arranged on the outer sides of the second detection cameras are lightened, so that the screening component can conveniently distinguish and convey the backlight sources completed film pasting.

5. The invention can distinguish and convey the backlight source which finishes film sticking through the screening component arranged in the middle of the right side of the upper end of the bearing component, the third detection camera arranged outside the mounting frame can identify the backlight source which is arranged below the screening component, when the status indicating lamp is not lightened, the stroke cylinder drives the second sucker to adsorb and clamp the backlight source, then the servo motor drives the mounting plate to enable the second sucker to rotate ninety degrees clockwise to place the backlight source on the upper end of the qualified product conveyer belt for conveying, otherwise, when the status indicating lamp is lightened, the servo motor drives the mounting plate to enable the second sucker to rotate ninety degrees anticlockwise to place the backlight source on the upper end of the unqualified product conveyer belt for conveying, the screening effect is realized, and the second sucker can correspondingly adjust according to the actual placement position of the backlight source through the arrangement of the driving slide rail, the driving slide block and the driving cylinder, so as to achieve the best practical use effect.

Drawings

FIG. 1 is a schematic view of an overall structure of a film pasting device with a damage identification function for backlight production according to the present invention;

FIG. 2 is a schematic top view of a feeding conveyor belt of a film pasting device with a damage identification function for backlight production according to the present invention;

FIG. 3 is a schematic top view of a carrier turntable of a film pasting device with damage identification function for backlight production according to the present invention;

FIG. 4 is a schematic perspective view of an adjusting block of a film sticking device with a damage identification function for backlight production according to the present invention;

FIG. 5 is a schematic structural view of a screening assembly of a film sticking device with a damage identification function for backlight production according to the present invention;

fig. 6 is an enlarged schematic structural diagram of a portion a in fig. 1 of a film laminating device with a breakage recognition function for backlight production according to the present invention.

In the figure: 1. a load bearing assembly; 101. a bearing seat; 102. a feeding conveyer belt; 103. a qualified product conveyer belt; 104. a defective product conveyor belt; 2. a film pasting mechanism; 201. placing a seat; 202. arranging a transverse rail; 203. an X-axis moving assembly; 204. attaching a cylinder; 205. a first detection camera; 206. a connector tile; 207. a first suction cup; 208. a connecting bolt; 3. a transfer assembly; 301. a load bearing turntable; 302. a drive motor; 303. a bearing block; 304. fastening a bolt; 305. an adjustment groove; 306. an adjusting block; 307. adjusting a knob; 308. a limiting groove; 309. a protective layer; 3010. an infrared sensor; 3011. a second detection camera; 3012. a status indicator light; 4. a screening component; 401. a servo motor; 402. placing a tray; 403. driving the slide rail; 404. driving the slide block; 405. a driving cylinder; 406. connecting the transverse blocks; 407. a mounting frame; 408. a limiting slide rail; 409. a limiting sliding plate; 4010. a second suction cup; 4011. arranging a bolt; 4012. a stroke cylinder; 4013. and a third detection camera.

Detailed Description

Referring to fig. 1-6, a film pasting device with damage identification function for backlight production comprises a bearing component 1 and a screening component 4, a film pasting mechanism 2 is arranged at the rear end of the left side of the upper end of the bearing component 1, a transferring component 3 is arranged in the middle of the upper end of the bearing component 1, the transferring component 3 comprises a bearing turntable 301, a driving motor 302, a bearing block 303, a fastening bolt 304, an adjusting groove 305, an adjusting block 306, an adjusting knob 307, a limiting groove 308, a protective layer 309, an infrared sensor 3010, a second detection camera 3011 and a status indicator lamp 3012, the driving motor 302 is connected to the center position of the lower end of the bearing turntable 301, the bearing block 303 is arranged at the upper end of the bearing turntable 301, the bearing block 303 is connected with the bearing turntable 301 through the fastening bolt 304, the adjusting groove 305 is formed on the inner side of the upper end of the bearing block 303, and the adjusting block 306 is connected to the upper end of the adjusting groove 305, adjusting knobs 307 penetrate through two sides of the adjusting block 306, a limiting groove 308 is formed in one corner of the adjusting block 306, a protective layer 309 is formed in the outer surface of the limiting groove 308, an infrared sensor 3010 is arranged at the central position of the upper end of the bearing block 303, second detection cameras 3011 are arranged in the middle of the two sides of the bearing block 303, status indicator lamps 3012 are distributed on the outer sides of the second detection cameras 3011, and the screening component 4 is arranged in the middle of the right side of the upper end of the bearing component 1;

the operation is as follows, the four bearing blocks 303 arranged at the upper end of the bearing turntable 301 are matched with the driving motor 302 to drive the bearing turntable 301 to rotate clockwise, so that the film sticking device can perform continuous film sticking work, the production efficiency of the backlight source is improved, the infrared sensor 3010 arranged at the central position of the upper end of the bearing block 303 can detect whether the backlight source is placed at the upper end of the bearing block 303 in real time, so that the rotation work of the bearing turntable 301 is controlled, the linkage between the structures is stronger, and the bearing block 303 connected with the bearing turntable 301 through the fastening bolt 304 is convenient to change in a matched mode;

referring to fig. 1-2, the carrier assembly 1 includes a carrier 101, a feeding conveyor belt 102, a qualified product conveyor belt 103 and an unqualified product conveyor belt 104, wherein the feeding conveyor belt 102 is disposed in the middle of the left side of the upper end of the carrier 101, the qualified product conveyor belt 103 is disposed at the rear of the right side of the upper end of the carrier 101, the unqualified product conveyor belt 104 is disposed at the front of the right side of the upper end of the carrier 101, the central axis of the feeding conveyor belt 102 coincides with the central axis of the carrier 101, and the feeding conveyor belt 102, the qualified product conveyor belt 103 and the unqualified product conveyor belt 104 are distributed at the same height;

the film sticking device comprises a bearing seat 101, a feeding conveyer belt 102, a qualified product conveyer belt 103 and an unqualified product conveyer belt 104, wherein the feeding conveyer belt 102, the qualified product conveyer belt 103 and the unqualified product conveyer belt 104 are arranged at the upper end of the bearing seat 101, so that the conveying work of a film body, a qualified backlight source and an unqualified backlight source can be realized;

referring to fig. 1 and 6, the film sticking mechanism 2 includes a placing base 201, a placing cross rail 202, an X-axis moving assembly 203, a sticking cylinder 204, a first detection camera 205, a joint plate 206, first suction cups 207 and a connecting bolt 208, the placing cross rail 202 is arranged on the upper portion of the front end of the placing base 201, the lower end of the placing cross rail 202 is connected with the X-axis moving assembly 203, the sticking cylinder 204 is arranged on the inner side of the lower end of the X-axis moving assembly 203, the first detection cameras 205 are arranged on both sides of the outer portion of the lower end of the X-axis moving assembly 203, the lower end of the sticking cylinder 204 is connected with the joint plate 206, the lower end of the joint plate 206 is connected with the first suction cups 207, the first suction cups 207 are connected with the joint plate 206 through the connecting bolt 208, the first detection cameras 205 are symmetrically arranged about the center position of the X-axis moving assembly 203, and the vertical central axis of the sticking cylinder 204 coincides with the vertical central axis of the X-axis moving assembly 203, meanwhile, the connecting plates 206 and the jointing air cylinders 204 are vertically distributed, and the first suction cups 207 are in threaded connection with the connecting plates 206 through connecting bolts 208;

the operation is as follows, the first detection cameras 205 arranged at two sides of the outer part of the lower end of the X-axis moving assembly 203 can detect the position of the membrane conveyed by the upper end of the feeding conveyer belt 102, so as to ensure that the first suction disc 207 can accurately adsorb and clamp the membrane under the driving of the laminating cylinder 204 and the X-axis moving assembly 203, and avoid the condition that the adhering precision between the membrane and a backlight source is influenced by the deviation of the adsorbing and clamping position, and the first suction disc 207 connected with the connecting plate 206 through the connecting bolt 208 is convenient to replace the first suction disc 207 with a corresponding model according to the size of the actually laminated membrane, so as to achieve the best actual use effect;

referring to fig. 1, 3 and 4, the bearing blocks 303 are equidistantly distributed at the upper end of the bearing turntable 301, four bearing blocks 303 are arranged, the infrared sensor 3010 is connected with the bearing blocks 303 in an embedded manner, the adjusting block 306 is connected with the bearing blocks 303 in a sliding manner through the adjusting groove 305 and the adjusting knob 307, the limiting groove 308 and the adjusting block 306 are integrated, and the protective layer 309 is fixedly connected with the limiting groove 308;

the specific operation is as follows, the four adjusting blocks 306 arranged at the upper end of the bearing block 303 are convenient for adjusting the spacing between the backlight sources through the adjusting grooves 305 and the adjusting knobs 307, so that the limiting effect on the backlight sources with different sizes is achieved, the protective layer 309 arranged on the upper surface of the limiting groove 308 can effectively prevent the situation that scratches appear on the surface of the backlight sources in the film pasting process, meanwhile, the second detection cameras 3011 arranged in the middle parts of the two sides of the bearing block 303 can monitor the backlight sources in the film pasting process and after film pasting in real time, and when the backlight sources with wrinkles, bubbles and damages are detected, the status indicator lights 3012 arranged on the outer sides of the second detection cameras 3011 are turned on, so that the screening component 4 can distinguish and convey the backlight sources after film pasting;

referring to fig. 1 and 5, the screening assembly 4 includes a servo motor 401, a mounting tray 402, a driving slide rail 403, a driving slider 404, a driving cylinder 405, a connecting cross block 406, a mounting frame 407, a limiting slide rail 408, a limiting slide plate 409, a second suction cup 4010, a mounting bolt 4011, a stroke cylinder 4012 and a third detection camera 4013, the upper end of the servo motor 401 is connected with the mounting tray 402, the upper end of the mounting tray 402 is provided with the driving slide rail 403, the upper end of the driving slide rail 403 is connected with the driving slider 404, one side of the driving slider 404 is connected with the driving cylinder 405, the other side of the driving slider 404 is connected with the connecting cross block 406, the lower end of the connecting cross block 406 is provided with the mounting frame 407, the two inner sides of the mounting frame 407 are provided with the limiting slide rails 408, the outer side of the limiting slide rail 408 is connected with the limiting slide plate 409, the lower end of the limiting slide plate 409 is connected with the second suction cup 4010, the second suction cup 4010 is connected with the limiting slide plate 409 through the mounting bolt 4011, a stroke cylinder 4012 is connected to the central position of the upper end of the limiting sliding plate 409, a third detection camera 4013 is arranged outside the mounting frame 407, the driving sliding rail 403 and the mounting tray 402 are distributed in a parallel manner, the connecting cross block 406 is in a sliding structure with the driving sliding rail 403 through the driving sliding block 404 and the driving cylinder 405, the limiting sliding plate 409 and the stroke cylinder 4012 are distributed in a vertical manner, the second suction cup 4010 and the limiting sliding plate 409 are distributed in a parallel manner, and two limiting sliding rails 408 are symmetrically arranged about the central position of the limiting sliding plate 409;

the specific operation is as follows, the screening component 4 arranged in the middle of the right side of the upper end of the bearing component 1 can distinguish and convey the backlight source which finishes film pasting, the third detection camera 4013 arranged outside the mounting frame 407 can identify the backlight source which rotates to the lower part of the screening component 4, when the status indicator light 3012 is not lighted, the stroke cylinder 4012 drives the second sucker 4010 to adsorb and clamp the backlight source, then the servo motor 401 drives the mounting tray 402 to make the second sucker 4010 rotate ninety degrees clockwise to place the backlight source on the qualified product conveyer belt 103 for conveying, otherwise, when the status indicator light 3012 is lighted, the servo motor 401 drives the mounting tray 402 to make the second sucker 4010 rotate ninety degrees anticlockwise to place the backlight source on the unqualified product conveyer belt 104 for conveying, the screening effect is realized, through the arrangement of the driving slide rail 403, the driving slide block 404 and the driving cylinder 405, so that the second sucking disc 4010 can be adjusted correspondingly according to the actual placement position of the backlight source, thereby achieving the best actual use effect.

In conclusion, when the film sticking device with the damage identification function for the backlight production is used, firstly, the backlight is placed at the upper end of the limiting groove 308 through the external mechanical arm, the protective layer 309 is arranged on the upper surface of the limiting groove 308, the situation that scratches appear on the surface of the backlight in the film sticking process can be effectively prevented, the infrared sensor 3010 arranged at the central position of the upper end of the bearing block 303 can detect whether the backlight is placed at the upper end of the bearing block 303 in real time, so that the rotation work of the bearing rotary disc 301 is controlled, the linkage between the structures is stronger, then the driving motor 302 drives the bearing rotary disc 301 to rotate clockwise, the rotation angle of the bearing rotary disc 301 is ninety degrees every time, when the backlight rotates to the lower part of the film sticking mechanism 2, the first detection cameras 205 arranged at two sides of the outer part of the lower end of the X-axis moving assembly 203 can detect the position of the film conveyed at the upper end of the feeding conveyer belt 102, ensuring that the first suction disc 207 can accurately adsorb and clamp the film body under the driving of the adhering cylinder 204 and the X-axis moving assembly 203, avoiding the condition that the adhering precision between the film body and the backlight source is influenced by the deviation of the adsorbing and clamping position, then adhering the film body to the upper surface of the backlight source through the adhering cylinder 204 and the X-axis moving assembly 203, arranging second detection cameras 3011 in the middle parts of two sides of the bearing block 303, monitoring the backlight source in the film adhering process and after film adhering in real time, when the backlight source with wrinkles, bubbles and damage is detected, illuminating state indicating lamps 3012 arranged outside the second detection cameras 3011, arranging a screening assembly 4 in the middle part of the right side of the upper end of the bearing assembly 1, distinguishing and conveying the backlight source after film adhering, arranging a third detection camera 3 outside a setting frame 407, identifying the backlight source from the rotation to the lower part of the screening assembly 4, when the status indicator light 3012 is not turned on, the stroke cylinder 4012 drives the second suction cup 4010 to suck and clamp the second suction cup 4010, then the servo motor 401 drives the mounting tray 402 to enable the second suction cup 4010 to rotate ninety degrees clockwise to place the backlight source on the upper end of the qualified product conveyor belt 103 for conveying, and conversely, when the status indicator light 3012 is turned on, the servo motor 401 drives the mounting tray 402 to enable the second suction cup 4010 to rotate ninety degrees counterclockwise to place the backlight source on the upper end of the unqualified product conveyor belt 104 for conveying.