Stripe detection device for plate glass

Abstract

The utility model relates to the field of glass detection, in particular to a stripe detection device for plate glass, which comprises a light source, a placing frame and a horizontal rotary table, the light source is opposite to the front surface of the plate glass, the placing frame comprises a horizontal rotary frame and a vertical rotary frame, and the plate glass is fixed on the vertical rotary frame. The vertical rotating frame is rotationally connected to the horizontal rotating frame, the horizontal rotating frame comprises a rotating shaft, and the horizontal rotating table is rotationally connected with the horizontal rotating frame through the rotating shaft. The plate glass can be stably placed through the arrangement of the placing frame, optical detection can be carried out on the plate glass at all angles under the condition that the light source is not repeatedly moved through rotation of the horizontal rotary table and the vertical rotary frame, and the accuracy and reliability of stripe detection are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of glass detection, concretely to a stripe detection device of flat glass. BACKGROUND

[0002] In the manufacturing process of large-size and high-resolution display screens, flat glass as one of the core raw materials directly affects the display effect of the final product. Even a tiny stripe defect can cause obvious flaws in the display screen, affecting product performance. Therefore, effective detection of flat glass stripe defects is crucial to ensure the quality of display screen products.

[0003] Optical detection is currently the most effective method for detecting flat glass stripes. Currently, flat glass is vertically suspended and clamped, and a specific light source is used to irradiate the flat glass to form a projection on a screen. The inspector determines the stripe defects by observing the brightness of the projection and the angle between the glass and the light. This method is practical for small-size glass, but for ultra-thin large-size glass, vertical suspension and clamping can easily cause the flat glass to fall and break, making it difficult to efficiently complete the stripe detection work. SUMMARY

[0004] The technical problem to be solved by the present application is to provide a stripe detection device for flat glass. The placement rack can stably place the flat glass vertically. By rotating the horizontal turntable and the vertical rotating frame, optical detection can be performed on each angle of the flat glass without repeatedly moving the light source, improving the accuracy and reliability of stripe detection.

[0005] The specific technical solution of the present application is: a stripe detection device for flat glass, comprising a light source, a placement rack and a horizontal turntable. The light source is opposite to the front surface of the flat glass. The placement rack includes a horizontal rotating frame and a vertical rotating frame. The flat glass is fixed on the vertical rotating frame, and the vertical rotating frame is rotationally connected to the horizontal rotating frame. The horizontal rotating frame includes a rotating shaft. The horizontal turntable is rotationally connected to the horizontal rotating frame through the rotating shaft.

[0006] Further, the horizontal turntable includes a motor, a drive gear and a rotating gear. The rotating gear is fixed to the rotating shaft, the drive gear is connected to the motor, and the rotating gear is engaged with the drive gear.

[0007] Preferably, the horizontal turntable includes a scale disc and an angle pointer. The angle pointer is fixed to the horizontal rotating frame.

[0008] Further, the horizontal rotating frame includes a support frame, a limiting block and a base. The rotating shaft is fixed to the center of the base, and the support frame is symmetrically fixed to both sides of the base. The rotating shaft of the vertical rotating frame is rotationally connected to the support frame. The limiting block is fixed to the upper part of the support frame and opposite to the vertical rotating frame.

[0009] Preferably, the horizontal rotating frame further comprises universal wheels fixed to the four corners of the base frame and in contact with the ground.

[0010] Further, the vertical rotating frame comprises a glass fixing frame and a blocking strip fixed to the bottom end of the glass fixing frame and perpendicular to the side surface of the glass fixing frame, the blocking strip protruding from the surface of the glass fixing frame, and a flat glass fixed to the glass fixing frame and abutting against the blocking strip at the lower end.

[0011] Further preferably, the vertical rotating frame further comprises a rubber pad between the flat glass and the glass fixing frame and fixedly connected with the glass fixing frame.

[0012] Further preferably, the vertical rotating frame further comprises a vertical rotation angle scale fixed to the side surface of the glass fixing frame, the vertical rotation angle scale being provided with an arc-shaped slot, and the horizontal rotating frame being provided with a locking portion to be clamped into the arc-shaped slot.

[0013] Preferably, the light source is an adjustable light source, and the light source is an LED lamp, a halogen lamp or a laser emitter.

[0014] Further, a curtain is provided, the curtain is arranged perpendicularly to the direct light of the light source, and the placing frame is arranged between the curtain and the light source.

[0015] Compared with the prior art, the present application has the following beneficial effects:

[0016] In the process of detecting the stripe defects, the light source needs to irradiate and detect each angle of the flat glass, and in the prior art, the glass is hung, which is unstable and difficult to adjust the angle at any time, and in the present application, the placing frame is arranged to stably place the flat glass, and the rotation of the horizontal rotating table and the vertical rotating frame can realize optical detection of each angle of the flat glass without repeatedly moving the light source, thereby improving the accuracy and reliability of the stripe detection. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 FIG. 1 is a schematic diagram of the overall structure of the embodiment of the present application;

[0018] Fig. 2 FIG. 2 is a schematic diagram of the structure of the horizontal rotating table and the placing frame in the embodiment of the present application;

[0019] Fig. 3 FIG. 3 is a partial enlarged schematic diagram of the horizontal rotating table and the placing frame in the embodiment of the present application;

[0020] Fig. 4 FIG. 4 is an exploded schematic diagram of the structure of the horizontal rotating table in the embodiment of the present application;

[0021] In the figure: 1, curtain; 2, placing rack; 21, rotating shaft; 22, rotating gear; 23, horizontal rotating frame; 231, support frame; 232, limiting block; 233, bottom frame; 24, vertical rotating frame; 241, glass fixing frame; 242, vertical rotating angle scale dial; 243, blocking strip; 244, rubber pad; 3, flat glass; 4, light source; 5, horizontal rotating table; 51, scale dial; 52, motor; 53, driving gear; 54, angle pointer; 10, universal wheel. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments.

[0023] Therefore, the following detailed description of the embodiments of the present application is not intended to limit the scope of the claimed application, but only represents some embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0024] EMBODIMENT

[0025] Please see Figs. 1 to 4 The present embodiment provides a flat glass stripe detection device, which comprises a light source 4, a placing rack 2 and a horizontal rotating table 5. The light source 4 is opposite to the front surface of the flat glass 3. The placing rack 2 comprises a horizontal rotating frame 23 and a vertical rotating frame 24. The flat glass 3 is fixed on the vertical rotating frame 24, and the vertical rotating frame 24 is rotationally connected to the horizontal rotating frame 23. The horizontal rotating frame 23 comprises a rotating shaft 21. The horizontal rotating table 5 is rotationally connected to the horizontal rotating frame 23 through the rotating shaft 21. The placing rack 2 can stably place the flat glass 3. The horizontal rotating table 5 and the vertical rotating frame 24 can realize optical detection of each angle of the flat glass 3 without repeatedly moving the light source 4, thereby improving the accuracy and reliability of stripe detection.

[0026] When placing the flat glass 3, the flat glass 3 needs to be placed in a state that the vertical rotating frame 24 is at a certain angle, until the flat glass 3 completely adheres to the vertical rotating frame 24, and the flat glass 3 and the blocking strip 243 are also in a completely adhered state. Then, the vertical rotating frame 24 is rotated to gradually rotate the vertical angle to a state close to vertical, thereby avoiding the flat glass 3 from being broken.

[0027] Further, the horizontal rotating table 5 comprises a motor 52, a driving gear 53 and a rotating gear 22, the rotating gear 22 is fixed with the rotating shaft 21, the driving gear 53 is connected with the motor 52, and the rotating gear 22 is engaged with the driving gear 53. The motor 52 drives the driving gear 53 to rotate, the driving gear 53 drives the rotating gear 22 to rotate, thereby driving the rotating shaft 21 to rotate, and finally making the placing rack 2 rotate in the horizontal direction. The motor 52 has large torque and is convenient to control, and can be automatically rotated by the control system, thereby facilitating the realization of subsequent detection automation.

[0028] Preferably, the horizontal rotating table 5 comprises a scale disc 51 and an angle pointer 54, and the angle pointer 54 is fixed to the horizontal rotating frame 23. The scale disc 51 and the angle pointer 54 always display the rotation angle of the horizontal rotating frame 23, thereby facilitating the record of the technical personnel. The scale of the scale disc 51 should be clear and visible, and the precision is high, and is usually marked with a unit of 5° or less.

[0029] Further, the horizontal rotating frame 23 comprises a support frame 231, a limiting block 232 and a base frame 233, the rotating shaft 21 is fixed in the center of the base frame 233, the support frame 231 is fixed symmetrically on both sides of the base frame 233, the rotating shaft 21 of the vertical rotating frame 24 is rotatably connected with the support frame 231, and the limiting block 232 is fixed on the support frame 231 and opposite to the vertical rotating frame 24. The support frame 231 provides stable support for the vertical rotating frame 24, and the design of the support frame 231 needs to consider the bearing capacity and stability, and is usually made of high-strength aluminum material, which is structurally firm and can bear flat glass 3 of different sizes and weights.

[0030] Preferably, the horizontal rotating frame 23 further comprises universal wheels 10, and the universal wheels 10 are fixed to the four corners of the base frame 233 and are in contact with the ground. The universal wheels 10 provide stable support for the rotating horizontal rotating frame 23 and increase the stability of rotation. The universal wheels 10 should be made of wear-resistant and low-noise materials, such as polyurethane wheels, to ensure smooth and quiet movement.

[0031] Further, the vertical rotating frame 24 comprises a glass fixing frame 241 and a blocking strip 243, the blocking strip 243 is fixed at the bottom end of the glass fixing frame 241 and is perpendicular to the side surface of the glass fixing frame 241, the blocking strip 243 protrudes from the surface of the glass fixing frame 241, the flat glass 3 is fixed on the glass fixing frame 241, and the lower end of the flat glass 3 abuts against the blocking strip 243. The placing plane is the part of the glass fixing frame 241 directly contacting the flat glass 3, and the surface thereof is required to be flat and smooth to avoid secondary damage to the glass and affect the stripe detection of the glass. The surface of the placing plane is polished to ensure no scratches and unevenness.

[0032] Further preferably, the vertical rotating frame 24 further comprises a rubber pad 244, which is located between the flat glass 3 and the glass fixing frame 241 and is fixedly connected with the glass fixing frame 241, so as to buffer and protect the flat glass 3.

[0033] Further preferably, the vertical rotating frame 24 further comprises a vertical rotation angle scale 242, which is fixed to the side surface of the glass fixing frame 241 and is provided with an arc-shaped groove. The horizontal rotating frame 23 is provided with a locking part which is inserted into the arc-shaped groove. When the technician rotates the vertical rotating frame 24 to a certain angle, the locking part locks the vertical rotating frame 24 through the arc-shaped groove and displays the vertical rotation angle on the vertical rotation angle scale 242.

[0034] Preferably, the light source 4 is an adjustable light source, which adopts an LED lamp, a halogen lamp or a laser emitter. The light source 4 is an important component of the detection device, which is used to provide uniform and stable light conditions for clearly observing the stripe defects of the flat glass 3. The LED lamp has the advantages of low energy consumption, long service life and uniform light emission, which is suitable for most detection scenes. The halogen lamp has high light intensity, which is suitable for detection requiring high brightness. The laser light source 4 has the characteristics of high precision and high contrast, which is suitable for high-precision detection. The light source 4 should be uniformly distributed around the flat glass 3 to ensure uniform illumination. The ring layout or multi-point layout can be adopted to cover each area of the flat glass 3. The height and angle of the light source 4 should be adjustable to adapt to flat glasses 3 of different sizes and thicknesses. The light source 4 should also have a light intensity adjustment function, which can adjust the light intensity according to the detection needs. The light intensity adjustment can be realized by a manual knob or an electronic controller, which is easy to operate.

[0035] Further, the curtain 1 is vertically arranged with the direct light of the light source 4, and the placing frame 2 is arranged between the curtain 1 and the light source 4. The curtain 1 is used to receive the projected image after the light source 4 transmits through the flat glass 3, so as to observe and record the stripe defects. The curtain 1 should be made of materials with high reflectivity and low scattering, such as white PVC or special fabric. These materials can ensure that the projected image is clear and has high contrast. The size of the curtain 1 should match the size of the flat glass 3 to ensure that the projected image is complete and has no obstruction. The shape of the curtain 1 can be flat or curved, which is selected according to actual needs. The curtain 1 should be installed at a certain distance from the flat glass 3 to ensure that the projected image is clear. The bracket fixing or suspension method can be adopted for convenient disassembly and replacement.

[0036] In use, the vertical rotating frame 24 is first adjusted to a certain gentle angle position, then the flat glass 3 to be detected is placed on the vertical rotating frame 24 by manual or mechanical means; then the vertical rotating frame 24 is adjusted to a detection angle, so that the vertical rotating frame 24 forms a certain angle with the vertical direction, preferably 2 to 15 degrees, which can ensure efficient detection of the stripe and prevent the flat glass 3 from being broken or falling off the placing frame 2 due to excessive local stress. Then the light source 4 is turned on for detection, and the horizontal angle of the placing frame 2 is adjusted according to the need to operate the horizontal turntable 5. Finally, the stripe defects are determined through observation at each angle.

[0037] It should be understood by those of ordinary skill in the art that the above discussion of any of the embodiments is merely exemplary and is not intended to suggest that the scope of protection of the present application is limited to these examples; under the idea of the present application, the above embodiments or technical features in different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes of different aspects of one or more embodiments of the present application as described above. In order to be brief, they are not provided in detail.

[0038] One or more embodiments of the present application are intended to cover all such alternatives, modifications and variations falling within the broad scope of the present application. Therefore, any omission, modification, equivalent replacement, improvement, etc. made within the spirit and principles of one or more embodiments of the present application should be included within the scope of protection of the present application.

Claims

1. A streak detection device for flat glass, characterized by comprising: The utility model relates to a kind of glass surface flatness testing device, including light source (4), rack (2) and horizontal rotary table (5), light source (4) is opposite with the front of flat glass (3), the rack (2) includes horizontal rotating frame (23) and vertical rotating frame (24), flat glass (3) is fixed on vertical rotating frame (24), vertical rotating frame (24) is rotatably connected on horizontal rotating frame (23), the horizontal rotating frame (23) includes pivot (21), the horizontal rotary table (5) is rotatably connected with horizontal rotating frame (23) by pivot (21).

2. The apparatus for detecting a streak of flat glass according to claim 1, wherein The horizontal rotary table (5) includes motor (52), drive gear (53) and rotating gear (22), the rotating gear (22) is fixed with the pivot (21), the drive gear (53) is connected with the motor (52), and the rotating gear (22) is engaged with the drive gear (53).

3. The apparatus for detecting a streak of flat glass according to claim 1, wherein The horizontal rotary table (5) includes scale disc (51) and angle pointer (54), and the angle pointer (54) is fixed to the horizontal rotating frame (23).

4. The apparatus for detecting a streak of flat glass according to claim 1, wherein The horizontal rotating frame (23) includes support frame (231), limiting block (232) and base frame (233), the pivot (21) is fixed in the center of the base frame (233), the support frame (231) is symmetrically fixed on both sides of the base frame (233), the rotating shaft of the vertical rotating frame (24) is rotatably connected with the support frame (231), and the limiting block (232) is fixed on the support frame (231) and opposite to the vertical rotating frame (24).

5. The apparatus for detecting a streak of flat glass according to claim 4, wherein The horizontal rotating frame (23) further includes universal wheel (10), and the universal wheel (10) is fixed to the four corners of the base frame (233) and contacts the ground.

6. The apparatus for detecting a streak of flat glass according to claim 1, wherein The vertical rotating frame (24) includes glass fixing frame (241) and blocking strip (243), the blocking strip (243) is fixed at the bottom end of the glass fixing frame (241) and is perpendicular to the side surface of the glass fixing frame (241), the blocking strip (243) protrudes from the surface of the glass fixing frame (241), the flat glass (3) is fixed on the glass fixing frame (241), and the lower end of the flat glass (3) abuts against the blocking strip (243).

7. The apparatus according to claim 6, wherein The vertical rotating frame (24) further includes rubber pad (244), and the rubber pad (244) is located between the flat glass (3) and the glass fixing frame (241) and is fixedly connected with the glass fixing frame (241).

8. The apparatus for detecting a streak of flat glass according to claim 6, wherein The vertical rotating frame (24) further includes vertical rotation angle scale disc (242), and the vertical rotation angle scale disc (242) is fixed to the side surface of the glass fixing frame (241), the vertical rotation angle scale disc (242) is provided with an arc-shaped groove, and the horizontal rotating frame (23) is provided with a locking part which is clamped into the arc-shaped groove.

9. The apparatus for detecting a streak of flat glass according to claim 1, wherein The light source (4) is an adjustable light source, and the light source (4) adopts an LED lamp, a halogen lamp or a laser emitter.

10. The apparatus for detecting a streak of flat glass according to claim 1, wherein The utility model further includes a curtain (1), the curtain (1) is vertically arranged with the direct light of the light source (4), and the rack (2) is arranged between the curtain (1) and the light source (4).

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