Product width detection device used after slitting of roll-shaped polaroid

Abstract

The utility model discloses a device for detecting the width of a slit rolled polaroid product, which comprises a reflection detection system and tightening wheels, the head and the tail of the reflection detection system are respectively provided with a tightening wheel, and a plurality of tightening wheels are respectively arranged on the path on which the polaroid is rolled. The two reflection detection systems are fixedly arranged on the motion path of the slit polaroid, a camera, a light source and a moving module are arranged on each reflection detection system, and the cameras and the light sources are arranged on the moving modules and can move along with the movable ends of the moving modules. The reflection detection system can be connected with a computer and is provided with width detection software. The full-meter section product width detection can be realized instead of the sampling detection in the traditional detection, so that the accuracy is greatly improved, the outflow risk of unqualified polarizer width is reduced, the occurrence probability of batch unqualified width is reduced, and the product loss is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to polarizing sheet wide detection technical field, specifically a kind of for the product wide detection device of polarizing sheet slit after roll. BACKGROUND

[0002] Polarizer is the important component indispensable to liquid crystal display imaging. With the gradual increase of liquid crystal display (TV / Notebook / Mobile etc.) demand in recent years, the demand of polarizer also increases greatly. Polarizer production and processing technology is more complex, and the slitting processing technology of roll material polarizer is a more important link. The width of each roll product after roll slitting directly affects the subsequent planned processing size. The current implementation mode of product width detection after polarizing sheet slit includes: artificial first and last sampling detection and AOI detection.

[0003] The advantage of AOI detection compared with artificial inspection is that, compared with artificial first and last sampling detection, AOI can realize full meter section detection, while reducing sampling loss.

[0004] The current product width inspection mode of polarizing sheet slit is artificial detection, which produces unnecessary product loss, and cannot detect full meter section, and there is a situation of Spec out of the width of the slitting roll section. AOI real-time full meter section slitting edge detection can well solve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of for the product wide detection device of polarizing sheet slit, to solve the problems raised in the above background.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: a kind of for the product wide detection device of polarizing sheet slit, characterized by, including reflection detection system, roll tight wheel, wherein first and last are provided with one roll tight wheel, and the path of polarizing sheet is rolled movement is provided with several roll tight wheels, respectively, first and last two roll tight wheels are used to release roll and wind roll, and the roll tight wheel on the movement path of other polarizing sheet plays the role of changing the running track of polarizing sheet, two reflection detection systems are respectively fixedly arranged on the movement path of polarizing sheet slit, camera is provided on reflection detection system, and camera faces the polarizing sheet placed after cutting.

[0007] Further, light source is provided on reflection detection system, and the direction of light source is same with the direction of camera.

[0008] Further, mobile module is provided on reflection detection system, wherein camera and light source are provided on mobile module, and can move with the movable end of mobile module.

[0009] Further, the moving module (110) is composed of a track, the track is driven by a driving shaft arranged on a bearing, the camera and the light source are fixed on a fixed position of the track, and the track is arranged perpendicularly to the moving direction of the polaroid.

[0010] Further, the reflection detection system can be connected to a computer and is provided with wide-width detection software.

[0011] Compared with the prior art, the utility model has the following advantages:

[0012] (1) The utility model can realize full-automatic detection, reduce manual cost, and the detection precision is far higher than manual detection.

[0013] (2) The utility model can realize wide-width detection of full-millimeter section products, instead of sampling detection in traditional detection, the accuracy is greatly improved, the risk of polaroid wide-width unqualified outflow is reduced, the occurrence probability of batch wide-width unqualified is reduced, and product loss is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 A kind of for roll-shaped polaroid slit product wide-width detection device plane schematic view.

[0015] Fig. 2 Reflection detection system partial schematic view.

[0016] Fig. 3 Camera, moving module principle schematic view in reflection detection system.

[0017] Among them, 100, reflection detection system, 110, moving module, 200, reel up wheel. DETAILED DESCRIPTION

[0018] Reference Figs. 1-3 The utility model provides an embodiment: a kind of for roll-shaped polaroid slit product wide-width detection device, including reflection detection system 100, reel up wheel 200, wherein first and last are provided with one reel up wheel 200 respectively, and there are several reel up wheels 200 respectively on the path of polaroid being rolled movement, and the two reel up wheels 200 of first and last are used to reel up polaroid, reach the requirement of unwinding and winding, other reel up wheels 200 are used to change the running track of polaroid, and can further make the compactness of polaroid whole to some extent, facilitate winding, cutting.

[0019] Two reflection detection systems 100 are fixedly arranged on the movement path of polaroid after being slit respectively, reflection detection system 100 is provided with camera, camera faces the polaroid after being cut and places, camera is photographed to polaroid, according to the photo of its shooting, the distance between the two edges of polaroid is judged, so as to calculate to obtain the width of polaroid.

[0020] With reference to Figs. 1-3 Further, the reflection detection system 100 is provided with a light source, the direction of the light source is the same as that of the camera, the light source can provide illumination when the camera takes pictures, and the clarity of the pictures is ensured.

[0021] With reference to Figs. 1-3 Further, the reflection detection system 100 is provided with a moving module 110, the camera and the light source are arranged on the moving module 110, and can move with the movable end of the moving module 110, the moving module 110 can transport the reflection detection system 100 to the required position according to the requirement, the moving module 110 is composed of a track, the track is driven by a driving shaft arranged on a bearing, the driving shaft drives the track to move, the camera and the light source are fixed on the fixed position of the track, and the track is arranged perpendicularly to the moving direction of the polaroid, because the track moves, but the camera and the light source are fixed on the fixed position of the track, so the track can drive the designed light source to move transversely in the direction perpendicular to the moving direction of the polaroid. Because the cut polaroid is not necessarily cut in half, it is possible that the two parts of the cut polaroid have different widths, so the reflection detection system 100 needs to determine the position again according to the width of the cut polaroid, at this time, the moving module 110 is used to move the reflection detection system 100 to the corresponding position.

[0022] With reference to Figs. 1-3 Further, the reflection detection system 100 can be connected to a computer, and is provided with a width detection software, the background software can calculate the width of the polaroid, if there is a problem, an error will be reported, so that the machine stops running, manual inspection is performed, and it is decided whether to continue working according to the specific condition, so that the phenomenon of batch polaroids with non-compliant widths is avoided.

[0023] Embodiment one: the device is arranged at the rear end of the polaroid splitting device, that is, a roll of finished polaroid is cut by the blade into two rolls of polaroid, and then the two rolls of polaroid are input into the device. After the polaroid is input into the device, the rear end obtains the rolling signal of the winding wheel 200, and according to the preset data of the width detection software, the two groups of moving modules 110 respectively drive the reflection detection system 100 on them to return to the original position first, and then drive the reflection detection system 100 to move inward according to the preset width of the two rolls of polaroid. After the camera captures the edge of the product, the positioning is stopped. At this time, the light source is turned on, and the preset frequency is started to shoot according to the rear end, so that the width error of the polaroid is within a reasonable range during each shooting. If the width error exceeds the set range, the alarm is started, and the machine stops running at the same time. The front-end cutting device also stops, and personnel confirm the width result to decide whether to continue running or stop. The utility model realizes full-automatic detection, reduces the labor cost, and the detection precision is much higher than manual detection. The width of the product is detected in full-millimeter sections, not in the traditional sampling detection, the accuracy is greatly improved, the risk of unqualified polaroid width is reduced, the probability of batch unqualified width is reduced, and the product loss is reduced.

Claims

1. A device for detecting the width of products after slitting roll-shaped polarizing films, characterized in that, The application relates to a reflective detection system (100) and a winding-up roller (200), wherein One winding-up roller (200) is arranged at the head and tail of the polaroid respectively, and a plurality of winding-up rollers (200) are arranged on the movement path of the polaroid, The two winding-up rollers (200) at the head and tail are respectively used for unwinding and winding, and the winding-up rollers (200) on the movement path of the other polaroids change the running track of the polaroids, Two reflective detection systems (100) are respectively arranged on the movement path of the polaroid after being cut, a camera is arranged on the reflective detection system (100), and the camera faces the cut polaroid.

2. The apparatus of claim 1, wherein, A light source is arranged on the reflective detection system (100), and the direction of the light source is the same as that of the camera.

3. The apparatus of claim 2, wherein, A moving module (110) is arranged on the reflective detection system (100), wherein The camera and the light source are arranged on the moving module (110) and can move along with the movable end of the moving module (110).

4. The apparatus of claim 3, wherein, The moving module (110) is composed of a caterpillar belt, the caterpillar belt is driven by a driving shaft arranged on a bearing, the camera and the light source are fixed on the fixed position of the caterpillar belt, The caterpillar belt is arranged perpendicularly to the moving direction of the polaroid.

5. The apparatus according to claim 1 or 2 or 3 or 4, wherein The reflective detection system (100) can be connected with a computer and is provided with wide-range detection software.

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