阅读说明：本技术 一种触摸屏生产加工用质检装置及质检方法 (Quality inspection device and quality inspection method for production and processing of touch screen ) 是由 徐丽容 于 2021-08-09 设计创作，主要内容包括：本发明公开了屏幕生产领域的一种触摸屏生产加工用质检装置及质检方法,包括固定曲面柔性触摸屏的固定机构以及传输固定机构的传送带,沿传送带的输送方向依次设置有压平机构、用于清理触摸屏的清理机构、对清理后的触摸屏进行贴保护膜的贴膜机构以及对触摸屏进行拍照检测的图像处理机构,所述压平机构用于将曲面柔性触摸屏压平并固定,所述贴膜机构根据压平后的触摸屏长度自动调整膜的剪裁长度。本发明能够在运输的过程中根据自动夹紧,在屏幕检测前对曲面柔性的触摸屏进行压平并固定防止其形变,不仅方便贴膜机构贴膜；还方便在屏幕检测时拍照采样,避免反光导致的采样不清,影响检测结果。(The invention discloses a quality inspection device and a quality inspection method for production and processing of a touch screen, and belongs to the field of screen production. According to the invention, the flexible touch screen with the curved surface can be flattened and fixed to prevent deformation before screen detection according to automatic clamping in the transportation process, so that the film sticking of the film sticking mechanism is facilitated; still conveniently shoot the sampling when the screen detects, avoid the sampling that the reflection of light leads to unclear, influence the testing result.)

1. The utility model provides a quality inspection device is used in touch-sensitive screen production and processing which characterized in that: including fixed curved surface flexible touch-sensitive screen's (1) fixed establishment (2) and conveyer belt (3) of transmission fixed establishment (2), the direction of delivery along conveyer belt (3) has set gradually flattening mechanism (4), clearance mechanism (5) for clearing up touch-sensitive screen (1), carry out pad pasting mechanism (6) of pad pasting protection film and image processing mechanism (7) that detect of shooing to touch-sensitive screen (1) after the clearance, flattening mechanism (4) are used for flattening and fixing flexible touch-sensitive screen (1) of curved surface, pad pasting mechanism (6) are according to the length of tailorring of the flexible touch-sensitive screen (1) length automatically regulated membrane of flattening.

2. The quality inspection device for the production and processing of the touch screen according to claim 1, wherein: fixing mechanism (2) are including horizontal clamping unit (21) and vertical flexible unit (22), horizontal clamping unit (21) includes first loop bar (211), and horizontal smooth motion installs pinch-off blades (212) and drive plate (213) in first loop bar (211), the length direction of the equal perpendicular to first loop bar (211) of slip direction of pinch-off blades (212) and drive plate (213), is connected through first compression spring (214) between pinch-off blades (212) and drive plate (213), and pinch-off blades (212) are close to first loop bar (211) head end department and are provided with elasticity fixed part (215), elasticity fixed part (215) are used for the head end of fixed touch-sensitive screen (1) when pinch-off blades (212) press from both sides tight touch-sensitive screen (1).

3. The quality inspection device for the production and processing of the touch screen according to claim 2, wherein: vertical flexible unit (22) include second loop bar (221) of body length direction slidable mounting on first loop bar (211) along first loop bar (211), second loop bar (221) are located the tail end of first loop bar (211), and the vertical slidable mounting of tail end department of first loop bar (211) has tight piece (222) of clamp, press from both sides tight piece (222) and be used for pressing from both sides tight second loop bar (221), press from both sides tight piece (222) top and be provided with runner (223), runner (223) eccentric rotation is installed on first loop bar (211), fixed mounting has drive runner (223) pivoted crank (224) on runner (223).

4. The quality inspection device for touch screen production and processing according to claim 3, wherein: be provided with reducing section (31) on conveyer belt (3), flattening mechanism (4), clearance mechanism (5), image processing mechanism (7) all are located reducing section (31), reducing section (31) are used for extrudeing drive plate (213) for drive plate (213) drive clamp plate (212) press from both sides tightly touch-sensitive screen (1).

5. The quality inspection device for touch screen production and processing according to claim 4, wherein: mechanism (4) flattens includes flattening roller (41) of vertical slidable mounting in the frame, the vertical fixed mounting in first loop bar (211) upper end has air spring (42), and fixed mounting has unlocking plate (43) on air spring (42), and unlocking plate (43) are articulated with crank (224), unlocking plate (43) are used for driving runner (223) locking, unblock second loop bar (221).

6. The quality inspection device for the production and processing of the touch screen according to claim 5, wherein: the cleaning mechanism (5) comprises a cleaning roller (51) arranged on the rack, two ends of the cleaning roller (51) are rotatably arranged on a sliding block (52), the sliding block (52) is vertically and slidably arranged on the rack, two ends of the rotating roller are fixedly provided with a first gear (53), and a second gear (54) is rotatably arranged on the sliding block (52) and is meshed with the first gear (53); two ends of the flattening roller (41) are also rotatably arranged on the sliding block (52), and a second compression spring (55) is vertically arranged between the sliding block (52) and the conveyor belt (3); the upper end faces of the first loop bar (211) and the second loop bar (221) are respectively provided with a first rack (56) and a second rack (57) with the same modulus, and the moduli of the first rack (56) and the second rack (57) are the same as the modulus of the second gear (54).

7. The quality inspection device for touch screen production and processing according to claim 6, wherein: the film sticking mechanism (6) comprises a conveying roller (61) and a winding roller (62) which are fixedly mounted on a rack and used for conveying a protective film, a scraping plate (63) is fixedly arranged between the conveying roller (61) and the winding roller (62), the conveying roller (61) and the winding roller (62) are connected through a synchronous belt (64), third gears (65) are fixedly mounted at two ends of the conveying roller (61), and the modulus of the third gears (65) is the same as that of the first rack (56) and the second rack (57); and a cutter (66) is installed at the bottom of the scraping plate (63), and the cutter (66) automatically cuts the protective film when the conveying roller (61) stops rotating.

8. A quality inspection method for production and processing of a touch screen is suitable for the quality inspection device of any one of claims 1 to 7, and is characterized in that: the method mainly comprises the following steps:

s1: placing a flexible curved touch screen (1) to be detected in a fixing mechanism (2), and aligning the head end and the tail end of the touch screen (1) with the head end and the tail end of the fixing mechanism (2);

s2: the conveyor belt (3) conveys the fixing mechanism (2), and the fixing mechanism (2) clamps the touch screen (1) when the fixing mechanism (2) passes through the reducing section (31);

s3: the touch screen (1) is sequentially subjected to flattening mechanism (4), cleaning mechanism (5), film pasting mechanism (6) and image processing mechanism (7) under the fixed condition, and after the touch screen (1) is flattened, the film pasting is cleaned and finally the photographing detection is carried out.

Technical Field

The invention belongs to the field of package printing, and particularly relates to a quality inspection device and a quality inspection method for production and processing of a touch screen.

Background

Touch screens, also known as "touch screens" and "touch panels", are inductive liquid crystal display devices capable of receiving input signals such as touch signals, and currently, an electronic screen that can be bent like paper is available on the market, commonly referred to as a paper screen. In the existing production process, a protective film needs to be attached to the surface of the touch screen to prevent the touch screen from being damaged in transportation, but the paper screen generally has radian and is easy to bend by external force in the transportation process, so that the film attachment is inconvenient; the sizes of the films of the touch screens with different specifications and different bending radians are different, and the sizes of the films need to be adjusted manually, so that the labor intensity of workers is increased, and the production quality inspection efficiency is reduced; in addition, the existing touch screen usually adopts a photographing sampling and image contrast mode to perform screen detection, and the touch screen with radian may reflect light due to the changed angle of the screen when detecting, so that the photographing sampling is not clear, the detection result is influenced, and the false detection is caused.

Therefore, the quality inspection device and the quality inspection method for producing and processing the touch screen are needed to be provided at present, the device can be automatically clamped in the transportation process, and the device can flatten the flexible touch screen with the curved surface before the screen is detected and fix the flexible touch screen to prevent the flexible touch screen from deforming, so that the film can be conveniently pasted by a film pasting mechanism; on the other hand conveniently takes a picture the sampling when the screen detects, avoids the sampling that the reflection of light leads to unclear, influences the testing result. In addition, the device can automatically adjust the cutting length according to the actual length of the touch screen after being flattened, film pasting is carried out, manual adjustment is avoided, and the production quality inspection efficiency is improved.

Disclosure of Invention

The invention aims to provide a quality inspection device and a quality inspection method for production and processing of a touch screen, and aims to solve the problems of the prior art in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a quality inspection device is used in touch-sensitive screen production and processing, includes the fixed establishment of the flexible touch-sensitive screen of fixed curved surface and transmits fixed establishment's conveyer belt, has set gradually along the direction of delivery of conveyer belt flattening mechanism, the clearance mechanism that is used for clearing up the touch-sensitive screen, carries out the pad pasting mechanism of pad pasting protection film to the touch-sensitive screen after the clearance and carries out the image processing mechanism who shoots the detection to the touch-sensitive screen, flattening mechanism is used for flattening and fixing the flexible touch-sensitive screen of curved surface, pad pasting mechanism is according to the length of tailorring of the automatic adjustment membrane of the touch-sensitive screen length after flattening.

As a further aspect of the present invention, the fixing mechanism includes a transverse clamping unit and a longitudinal telescopic unit, the transverse clamping unit includes a first loop bar, a clamping plate and a driving plate are horizontally slidably mounted in the first loop bar, the sliding directions of the clamping plate and the driving plate are both perpendicular to the extension direction of the first loop bar, the clamping plate and the driving plate are connected through a first compression spring, an elastic fixing portion is disposed at a position of the clamping plate close to a first end of the first loop bar, and the elastic fixing portion is used for fixing a head end of the touch screen when the clamping plate clamps the touch screen.

As a further scheme of the invention, the longitudinal telescopic unit comprises a second loop bar which is slidably mounted on the first loop bar along the extension direction of the first loop bar, the second loop bar is located at the tail end of the first loop bar, a clamping block is vertically slidably mounted at the tail end of the first loop bar and used for clamping the second loop bar, a rotating wheel is arranged above the clamping block and eccentrically and rotatably mounted on the first loop bar, and a crank for driving the rotating wheel to rotate is fixedly mounted on the rotating wheel.

As a further scheme of the invention, the conveyor belt is provided with a reducing section, the flattening mechanism, the cleaning mechanism and the image processing mechanism are all located in the reducing section, and the reducing section is used for extruding the driving plate, so that the driving plate drives the clamping plate to clamp the touch screen.

As a further scheme of the invention, the flattening mechanism comprises a flattening roller vertically and slidably mounted on the rack, the upper end of the first sleeve rod is vertically and fixedly provided with an air spring, an unlocking plate is fixedly mounted on the air spring and hinged with the crank, and the unlocking plate is used for driving the rotating wheel to lock and unlock the second sleeve rod.

As a further scheme of the invention, the cleaning mechanism comprises a cleaning roller arranged on a rack, two ends of the cleaning roller are rotatably arranged on sliding blocks, the sliding blocks are vertically and slidably arranged on the rack, two ends of the rotating roller are fixedly provided with first gears, and the sliding blocks are rotatably provided with second gears which are meshed with the first gears; two ends of the flattening roller are also rotatably arranged on the sliding block, and a second compression spring is vertically arranged between the sliding block and the conveyor belt; the upper end surfaces of the first loop bar and the second loop bar are respectively provided with a first rack and a second rack with the same modulus, and the moduli of the first rack and the second rack are the same as the modulus of the second gear.

As a further scheme of the invention, the film sticking mechanism comprises a conveying roller and a winding roller which are fixedly arranged on a rack and used for conveying a protective film, a scraping plate is fixedly arranged between the conveying roller and the winding roller, the conveying roller and the winding roller are connected through a synchronous belt, third gears are fixedly arranged at two ends of the conveying roller, and the modulus of the third gears is the same as that of the first rack and the second rack; and a cutter is arranged at the bottom of the scraping plate, and the cutter automatically cuts the protective film when the conveying roller stops rotating.

The invention also provides a quality inspection method for production and processing of the touch screen, which mainly comprises the following steps:

s1: placing a curved flexible touch screen to be detected in a fixing mechanism, and aligning the head end and the tail end of the touch screen with the head end and the tail end of the fixing mechanism;

s2: the conveyor belt conveying and fixing mechanism clamps the touch screen when the fixing mechanism passes through the reducing section;

s3: the touch screen sequentially passes through the flattening mechanism, the cleaning mechanism, the film pasting mechanism and the image processing mechanism under the fixed condition, the flattening mechanism is used for flattening the touch screen, cleaning the film pasting mechanism and finally shooting detection is carried out.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the device, the flexible touch screen with the curved surface can be flattened and fixed to prevent deformation before screen detection according to automatic clamping in the transportation process, and therefore, the film can be conveniently pasted by the film pasting mechanism; on the other hand conveniently takes a picture the sampling when the screen detects, avoids the sampling that the reflection of light leads to unclear, influences the testing result. In addition, the device can automatically adjust the cutting length according to the actual length of the touch screen after being flattened, film pasting is carried out, manual adjustment is avoided, and the production quality inspection efficiency is improved.

2. The fixing mechanism can automatically clamp the touch screen in the transmission process, automatically unlock the longitudinal direction of the touch screen during flattening, facilitate flattening of the touch screen, and re-lock the longitudinal degree of freedom of the touch screen after flattening, so as to prevent the touch screen from replying. According to the invention, the flattening mechanism is arranged in the reducing section, the reducing section of the conveyor belt is used for driving the clamping plate of the fixing mechanism to clamp the touch screen, additional power is not required for clamping and unlocking, the structure is simple, the use is convenient, and the cost is saved.

3. In order to ensure the flattening effect and the cleaning effect, the sliding block is arranged, the flattening roller and the cleaning roller are rotatably arranged on the sliding block, the sliding block is vertically and slidably arranged on the rack, and the sliding block is downward all the time under the tension of the second compression spring, so that the flattening roller and the cleaning roller can be tightly attached to the screen, and the flattening effect of the flattening roller and the cleaning effect of the cleaning roller are ensured.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural view of the present invention as a whole;

FIG. 2 is a schematic structural view of the fixing mechanism of the present invention;

FIG. 3 is an enlarged view of a portion A of FIG. 2 according to the present invention;

FIG. 4 is a cross-sectional view of a first stem set of the present invention;

FIG. 5 is a schematic view of the construction of a first and second loop bar of the present invention;

FIG. 6 is an enlarged view of a portion B of FIG. 5 in accordance with the present invention;

FIG. 7 is a schematic structural view of the flattening mechanism and the cleaning mechanism of the present invention;

FIG. 8 is an enlarged view of a portion C of FIG. 7 in accordance with the present invention;

FIG. 9 is an enlarged view of a portion D of FIG. 7 in accordance with the present invention;

FIG. 10 is a schematic structural view of a film attaching mechanism and an image processing mechanism according to the present invention;

FIG. 11 is an enlarged view of portion E of FIG. 10 in accordance with the present invention;

FIG. 12 is a process flow chart of a quality inspection method for touch screen production and processing according to the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1-touch screen, 2-fixing mechanism, 21-transverse clamping unit, 211-first loop bar, 212-clamping plate, 213-driving plate, 214-first compression spring, 215-elastic fixing part, 22-longitudinal telescopic unit, 221-second loop bar, 222-clamping block, 223-rotating wheel, 224-crank, 3-conveyor belt, 31-diameter-changing section, 4-flattening mechanism, 41-flattening roller, 42-gas spring, 43-unlocking plate, 5-cleaning mechanism, 51-cleaning roller, 52-sliding block, 53-first gear, 54-second gear, 55-second compression spring, 56-first rack, 57-second rack, 6-film-sticking mechanism, 61-conveying roller, 62-winding roller, 63-scraping plate, 64-synchronous belt, 65-third gear, 66-cutter and 7-image processing mechanism.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-12, a quality inspection device for production and processing of a touch screen 1 comprises a fixing mechanism 2 for fixing a curved flexible touch screen 1 and a conveyor belt 3 for conveying the fixing mechanism 2, wherein a flattening mechanism 4, a cleaning mechanism 5 for cleaning the touch screen 1, a film pasting mechanism 6 for pasting a protective film on the cleaned touch screen 1, and an image processing mechanism 7 for photographing and detecting the touch screen 1 are sequentially arranged along the conveying direction of the conveyor belt 3, the flattening mechanism 4 is used for flattening and fixing the curved flexible touch screen 1, and the film pasting mechanism 6 automatically adjusts the cutting length of the film according to the length of the flattened touch screen 1.

The touch screen 1 is also called a "touch screen" or a "touch panel", and is an inductive liquid crystal display device capable of receiving input signals such as a touch, and an electronic screen capable of being bent like paper is currently on the market, and is commonly called a paper screen. In the existing production process, a protective film needs to be attached to the surface of the touch screen 1 to prevent the touch screen 1 from being damaged in transportation, but the paper screen generally has a radian and is easy to bend by external force in the transportation process, so that the film attachment is inconvenient; the sizes of the touch screens 1 with different specifications and different bending radians are different, and the sizes of the touch screens need to be adjusted manually, so that the labor intensity of workers is increased, and the production quality inspection efficiency is reduced; in addition, the existing touch screen 1 usually adopts a photographing sampling and image contrast mode to perform screen detection, and the touch screen 1 with radian may reflect light due to the changed angle of the screen when detecting, so that the photographing sampling is not clear, the detection result is influenced, and the false detection is caused.

As shown in fig. 1 and 8, in operation, the touch screen 1 with flexible curved surface to be detected is placed in the fixing mechanism 2, and the head end and the tail end of the touch screen 1 are aligned with the head end and the tail end of the fixing mechanism 2. The conveyor belt 3 then starts to transport the fixing means 2, and the fixing means 2 automatically clamps the touch screen 1 when the fixing means 2 passes the reducing section 31 on the conveyor belt 3. Under the condition that the touch screen 1 is clamped, the touch screen 1 sequentially passes through the flattening mechanism 4, the cleaning mechanism 5, the film pasting mechanism 6 and the image processing mechanism 7, the touch screen 1 is flattened, then the film pasting is cleaned, and finally photographing detection is carried out. When the touch screen 1 passes through the flattening mechanism 4, the flattening mechanism 4 flattens and fixes the touch screen 1, so that the touch screen 1 is prevented from being deformed in a return manner, the actual length of the touch screen is conveniently and accurately measured, the length of a proper protective film is automatically cut, and the film is pasted, so that the efficiency is improved; the phenomenon that the angle of the touch screen 1 changes during subsequent photographing sampling detection is reflected is avoided, so that photographing sampling is not clear, and the detection result is influenced. According to the device, the flexible touch screen 1 with the curved surface can be flattened and fixed to prevent deformation before screen detection according to automatic clamping in the transportation process, and therefore, the film can be conveniently pasted by the film pasting mechanism 6; on the other hand conveniently takes a picture the sampling when the screen detects, avoids the sampling that the reflection of light leads to unclear, influences the testing result. In addition, the device can automatically adjust the cutting length according to the actual length of the touch screen 1 after being pressed, film pasting is carried out, manual adjustment is avoided, and the production quality inspection efficiency is improved.

As a further aspect of the present invention, the fixing mechanism 2 includes a transverse clamping unit 21 and a longitudinal telescopic unit 22, the transverse clamping unit 21 includes a first rod 211, a clamping plate 212 and a driving plate 213 are horizontally and movably mounted in the first rod 211, the sliding directions of the clamping plate 212 and the driving plate 213 are perpendicular to the length direction of the first rod 211, the clamping plate 212 and the driving plate 213 are connected by a first compression spring 214, an elastic fixing portion 215 is disposed at a position of the clamping plate 212 close to the head end of the first rod 211, and the elastic fixing portion 215 is used for fixing the head end of the touch screen 1 when the clamping plate 212 clamps the touch screen 1.

As a further scheme of the present invention, the longitudinal telescopic unit 22 includes a second sleeve rod 221 slidably mounted on the first sleeve rod 211 along the length direction of the first sleeve rod 211, the second sleeve rod 221 is located at the tail end of the first sleeve rod 211, a clamping block 222 is vertically slidably mounted at the tail end of the first sleeve rod 211, the clamping block 222 is used for clamping the second sleeve rod 221, a rotating wheel 223 is disposed above the clamping block 222, the rotating wheel 223 is eccentrically and rotatably mounted on the first sleeve rod 211, and a crank 224 for driving the rotating wheel 223 to rotate is fixedly mounted on the rotating wheel 223.

As a further scheme of the present invention, a reducing section 31 is disposed on the conveyor belt 3, the flattening mechanism 4, the cleaning mechanism 5, and the image processing mechanism 7 are all located in the reducing section 31, and the reducing section 31 is configured to press the driving plate 213, so that the driving plate 213 drives the clamping plate 212 to clamp the touch screen 1.

As a further scheme of the present invention, the flattening mechanism 4 includes a flattening roller 41 vertically slidably mounted on the frame, an air spring 42 is vertically and fixedly mounted at an upper end of the first sleeve 211, an unlocking plate 43 is fixedly mounted on the air spring 42, the unlocking plate 43 is hinged to the crank 224, and the unlocking plate 43 is used for driving the turning wheel 223 to lock and unlock the second sleeve 221.

The fixing mechanism 2 of the invention needs to automatically clamp the touch screen 1 in the transmission process, and because the touch screen 1 has radian and is foldable, the fixing mechanism 2 needs to longitudinally stretch and contract to adapt to the change of the longitudinal length of the touch screen 1. As shown in fig. 2, when the invention works, the flexible touch screen 1 with curved surface to be detected is put into the fixing mechanism 2, and the head end and the tail end of the touch screen 1 are aligned with the head end and the tail end of the fixing mechanism 2. The conveyor belt 3 then starts to convey the fixing mechanism 2. As shown in fig. 4 and 8, when the fixing mechanism 2 passes through the diameter-variable section 31 on the conveyor belt 3, the diameter-variable section 31 on the conveyor belt 3 presses the driving plate 213, the driving plate 213 drives the clamping plate 212 to clamp the touch screen 1 in the fixing mechanism 2 transversely through the first compression spring 214, because the clamping plate 212 is provided with the elastic fixing portion 215 near the head end of the first loop bar 211, the friction force of the elastic fixing portion 215 on the touch screen 1 is increased after clamping, and when the flattening mechanism 4 is flattened, the head end of the touch screen 1 is fixed by the elastic fixing portion 215, and the touch screen 1 extends along the longitudinal direction thereof.

As shown in fig. 4, 6, 7, and 8, the touch panel 1 is pressed and cleaned by the pressing mechanism 4 and the cleaning mechanism 5 when being clamped. When flattening, the two ends of the flattening roller 41 move downwards to press the unlocking plate 43, the gas spring 42 is pressed, the unlocking plate 43 moves downwards to drive the rotating wheel 223 to rotate because the unlocking plate 43 is hinged with the crank 224, and the rotating wheel 223 is eccentrically and rotatably arranged on the first sleeve 211. Initially, the wheel 223 presses the clamping block 222 such that the clamping block 222 locks the first and second bushings 211, 221 together. When the unlocking plate 43 moves downwards to drive the rotating wheel 223 to rotate, the rotating wheel 223 rotates to drive the clamping block 222 below the rotating wheel 223 to unlock the second loop bar 221. The second lever 221 is slidable in the longitudinal direction of the first lever 211. At this time, the flattening roller 41 flattens the touch panel 1, and the longitudinal length of the touch panel 1 is extended, so that the extended touch panel 1 drives the second lever 221 to extend. When the fixing mechanism 2 completely passes through the flattening mechanism 4 and the cleaning mechanism 5, the unlocking plate 43 rises under the restoring force of the gas spring 42, the crank 224 rises along with the unlocking plate 43, the rotating wheel 223 drives the clamping block 222 again to lock the second sleeve rod 221, and the touch screen 1 is flattened, cleaned and fixed. The fixing mechanism 2 can automatically clamp the touch screen 1 in the transmission process, automatically unlock the longitudinal direction of the touch screen 1 during flattening, facilitate flattening of the touch screen 1, and re-lock the longitudinal degree of freedom of the touch screen 1 after flattening, so as to prevent the touch screen 1 from recovering. According to the invention, the flattening mechanism 4 is arranged in the reducing section 31, the reducing section 31 of the conveyor belt 3 is utilized to drive the clamping plate 212 of the fixing mechanism 2 to clamp the touch screen 1, additional power is not required for clamping and unlocking, the structure is simple, the use is convenient, and the cost is saved.

As a further scheme of the present invention, the cleaning mechanism 5 includes a cleaning roller 51 mounted on the frame, both ends of the cleaning roller 51 are rotatably mounted on a sliding block 52, the sliding block 52 is vertically and slidably mounted on the frame, both ends of the rotating roller are fixedly mounted with a first gear 53, a second gear 54 rotatably mounted on the sliding block 52 is engaged with the first gear 53; the two ends of the flattening roller 41 are also rotatably arranged on the sliding block 52, and a second compression spring 55 is vertically arranged between the sliding block 52 and the conveyor belt 3; the upper end surfaces of the first sleeve rod 211 and the second sleeve rod 221 are respectively provided with a first rack 56 and a second rack 57 with the same modulus, and the moduli of the first rack 56 and the second rack 57 are the same as the modulus of the second gear 54.

The present invention requires the cleaning roller 51 to be reversed in order to improve the cleaning effect when the cleaning roller 51 is cleaned. As shown in fig. 5 and 9, when the fixing mechanism 2 passes through the cleaning mechanism 5, the first rack 56 and the second rack 57 on the first loop bar 211 and the second loop bar 221 are engaged with the second gear 54 to drive the second gear 54 to rotate in the forward direction, the second gear 54 drives the first gear 53 to rotate in the reverse direction, and the first gear 53 is fixedly installed at both ends of the cleaning roller 51, so that the cleaning roller 51 rotates in the reverse direction to clean the touch screen 1, thereby increasing the friction force and improving the cleaning effect. As shown in fig. 7 to 9, in order to ensure the flattening and cleaning effects, the present invention is provided with a sliding block 52, the flattening roller 41 and the cleaning roller 51 are both rotatably mounted on the sliding block 52, the sliding block 52 is vertically and slidably mounted on the frame, and the sliding block 52 is always downward under the pulling force of a second compression spring 55, so that the flattening roller 41 and the cleaning roller 51 can be tightly attached to the screen, and the flattening effect of the flattening roller 41 and the cleaning effect of the cleaning roller 51 are ensured.

As a further scheme of the present invention, the film sticking mechanism 6 includes a conveying roller 61 and a winding roller 62 which are fixedly mounted on the frame and used for conveying the protective film, a scraping plate 63 is fixedly disposed between the conveying roller 61 and the winding roller 62, the conveying roller 61 and the winding roller 62 are connected through a synchronous belt 64, both ends of the conveying roller 61 are fixedly mounted with third gears 65, and the modulus of the third gears 65 is the same as the modulus of the first rack 56 and the second rack 57; the bottom of the scraping plate 63 is provided with a cutter 66, and the cutter 66 automatically cuts the protective film when the conveying roller 61 stops rotating.

According to the invention, the touch screen 1 is convenient to be pasted with the film after being flattened and fixed, because the length and the size of the touch screen 1 with different specifications and different bending radians are different, if the size of the touch screen is manually adjusted, the labor intensity of workers is increased, and the production quality inspection efficiency is reduced. Therefore, as shown in fig. 10 and 11, when the film sticking device works, the fixing mechanism 2 passes through the film sticking mechanism 6, the first rack 56 and the second rack 57 on the first sleeve 211 and the second sleeve 221 are meshed with the third gears 65 at the two ends of the conveying roller 61, the conveying roller 61 is driven to unreel the protective film, and the conveying roller 61 drives the take-up roller 62 to reel the protective film through the synchronous belt 64. Because the touch screen 1 is already flattened and fixed at this time, the length of the first rack 56 and the second rack 57 is the actual length of the flattened touch screen 1, the protective film is attached to the touch screen 1 by the scraping plate 63 along with the advance of the fixing mechanism 2, when the fixing mechanism 2 completely passes through the film attaching mechanism 6, the second rack 57 is disengaged from the third gear 65, the conveying roller 61 stops rotating, and the cutter 66 automatically pops up the cut protective film. And (5) circulating and reciprocating. The invention can be suitable for touch screens 1 with different specifications and different bending radians, and can automatically cut a proper protective film for pasting according to the actual length of the flattened touch screen 1, thereby avoiding manually adjusting the specification of the protective film and improving the production quality inspection efficiency.

The invention also provides a quality inspection method for production and processing of the touch screen 1, which mainly comprises the following steps:

s1: placing a flexible curved touch screen 1 to be detected in a fixing mechanism 2, and aligning the head end and the tail end of the touch screen 1 with the head end and the tail end of the fixing mechanism 2;

s2: the conveyor belt 3 conveys the fixing mechanism 2, and the fixing mechanism 2 clamps the touch screen 1 when the fixing mechanism 2 passes through the reducing section 31;

s3: under the fixed condition, the touch screen 1 sequentially passes through the flattening mechanism 4, the cleaning mechanism 5, the film pasting mechanism 6 and the image processing mechanism 7, the touch screen 1 is flattened, then the film is cleaned and pasted, and finally photographing detection is carried out.