JP2007238224A - Glass plate transporting device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a glass plate transporting device f structure possible to check the whole surface of a glass plate in a check section by preventing the meandering of the glass plate during movement, while restricting the adhesion of dirty to the glass plate and damage to the glass plate. <P>SOLUTION: The glass plate transporting device 12 is provided with an air table 21 having an inclined air injection surface 22 formed with air injection openings to float the glass plate G in a tilting attitude by air from the air injection openings. The glass plate transporting device 12 is provided with a transporting means 23 brought in contact with the lower end surface of the tilted glass plate G which is floated by the air from the air injection openings in the tilting direction to move the glass plate in the transporting direction within a movement range. The transporting means 23 has a plurality of end surface driving rollers 24 arranged along the transportation direction. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a glass plate transport device used in an inspection device for inspecting a glass plate for defects.

  Conventionally, as a glass plate conveyance device used for an inspection device that inspects a defect of a glass plate by an inspection unit such as a foreign matter detection device disposed above a moving region of a glass plate that moves in the conveyance direction, for example, a horizontal plate 2. Description of the Related Art A roller conveyor (see, for example, Patent Document 1) composed of a large number of rollers and a conveying device shown in FIGS. 3 and 4 are known.

3 and 4 has a horizontal air ejection surface portion 1 in which a plurality of air ejection ports (not shown) are formed on an upper surface portion, and a horizontal orientation of the glass plate G with air from the air ejection ports. The horizontal glass plate G is moved in the conveying direction by moving the air table 2 that floats on the air table 2 and the side edges of the horizontal glass plate G that is floated by the air from the air jet port from below. And a rod-like support carrier 3 to be moved in the moving region. An inspection part 4 for inspecting the surface of the glass plate G for defects is disposed above the substantially central part in the longitudinal direction of the air ejection surface part 1 of the air table 2.
JP 2005-98905 A

  However, the conventional roller conveyor has a problem that the glass plate is likely to be soiled and scratched by contact with the roller, and the moving glass plate is likely to meander.

  3 and 4 support both side edges of the glass plate G from below with the support transport body 3, so that contact between the glass plate G and the support transport body 3 is avoided. There is a problem that the entire inspection of the glass plate G by the inspection unit 4 is impossible.

  The present invention has been made in view of the above points, and the glass plate is less likely to be stained and scratched, and the moving glass plate is not meandering. It aims at providing the glass plate conveying apparatus which can perform a whole surface inspection.

  The glass plate conveying device according to claim 1 is a glass plate conveying device used for an inspection device that inspects a defect of a glass plate by an inspection unit disposed above a moving region of the glass plate moving in the conveying direction. An air table having an air ejection surface portion on which a plurality of air ejection ports are formed on the upper surface portion, and an air table that floats the glass plate in an inclined posture with the air from the air ejection port, and the air from the air ejection port And a conveying means that contacts the lower end face of the inclined glass plate and moves the inclined glass plate in the moving region in the conveying direction.

  The glass plate conveying device according to claim 2 is the glass plate conveying device according to claim 1, wherein the conveying means has a plurality of end face driving rollers arranged along the conveying direction, and the air on the air ejection surface portion of the air table. The glass plate in an inclined posture floated by the air from the jet port is directed in the transport direction by the rotation of the end face driving roller with the end face on the lower end side in the inclination direction of the glass plate being in contact with the outer peripheral surface of the end face driving roller. To move within the moving area.

  According to the first aspect of the present invention, dirt and scratches are not easily generated on the glass plate, the moving glass plate does not meander, and the entire surface of the glass plate can be inspected by the inspection unit.

  According to the second aspect of the present invention, the plurality of end surface driving rollers arranged along the transport direction are rotated in a predetermined direction so that the inclined posture floats by the air from the air ejection port of the air ejection surface portion of the air table. The glass plate can be moved reliably.

  One embodiment of the glass plate conveying apparatus of the present invention will be described with reference to FIGS.

  In FIG. 1 and FIG. 2, 11 is an inspection device for inspecting a defect of the glass plate G. This inspection device 11 directs the glass plate G in an inclined posture formed in a substantially rectangular shape in the conveying direction with the inclined posture. A glass plate conveying device 12 to be moved, and an inspection unit 13 which is disposed above the moving region of the glass plate G and inspects for defects in the glass plate G moving in the moving region in the conveying direction. .

  The inspection unit 13 is, for example, a color spot detection device that detects color spots of paint applied to the surface of the glass plate G, a scratch detection device that detects scratches on the surface of the glass plate G, or the glass plate G. A foreign matter detection device for detecting foreign matter in the inside.

  The glass plate transport device 12 ejects air from a plurality of air jets (not shown), and floats the glass plate G in an inclined posture along the direction orthogonal to the transport direction with the air from the plurality of air jets. An air table 21 is provided.

  The air table 21 has an inclined air ejection surface portion 22 which is a substantially rectangular and planar air ejection surface portion formed so that a plurality of air ejection ports are dispersed over substantially the entire surface on the upper surface portion. The inclined air ejection surface portion 22 is predetermined in the horizontal direction so that one end in the width direction (for example, the left end side in FIG. 1) is low and the other end in the width direction (for example, the right end side in FIG. 1) is high. Is inclined at an inclination angle α (preferably, for example, 5 degrees to 10 degrees).

  Further, the glass plate conveying device 12 is a glass plate in an inclined posture that is floated slightly away from the inclined air ejection surface portion 22 in parallel by air from a plurality of air ejection ports of the inclined air ejection surface portion 22 of the air table 21. G is provided with conveying means 23 that contacts the lower end face of G in the inclination direction (for example, in FIG. 1, the left end face of the glass sheet G) and moves the inclined glass sheet G in the movement region in the conveying direction. Yes.

  Conveying means 23 has a plurality of cylindrical end surface driving rollers 24 positioned in the vicinity of the lower end in the inclined direction of inclined air ejection surface portion 22 of air table 21 and arranged side by side along the conveying direction at equal intervals. .

  The plurality of end surface driving rollers 24 are rotatably supported by a roller support portion 25 fixed to one side surface portion of the air table 21. Each end face driving roller 24 is centered on a rotation center axis X orthogonal to a plane including the inclined air ejection surface portion 22 of the air table 21 based on power from a driving means (not shown) such as a motor. It is designed to rotate.

  And the glass plate G of the inclination attitude | position which floated with the air from the several air ejection port of the inclined air ejection surface part 22 of the air table 21 is only the end surface of the inclination direction lower end side of this glass plate G in the plurality of conveyance means 23. While in contact with the outer peripheral surface of each of the end face driving rollers 24, the plurality of end face driving rollers 24 move in the moving region in the transport direction by driving rotation of the end face driving rollers 24.

  Next, the case where the inspection apparatus 11 is used to inspect the glass plate G for defects will be described.

  After the glass plate G to be inspected is placed in an inclined posture on the inclined air ejection surface portion 22 of the air table 21, air is ejected from the air ejection port of the inclined air ejection surface portion 22 of the air table 21, When the end face driving roller 24 of the conveying means 23 is driven and rotated by the power from the driving means, the inclined glass plate G is lifted from the inclined air ejection surface portion 22 of the air table 21 while being inclined, and the inclined air ejection surface portion. No contact with 22.

  And the glass plate G in the inclined posture floated by the air from the plurality of air outlets of the inclined air ejection surface portion 22 of the air table 21 has only the end surface on the lower end side in the inclination direction of the glass plate G. While in contact with the outer peripheral surfaces of the plurality of end surface driving rollers 24, the plurality of end surface driving rollers 24 move in the moving region in the transport direction, which is a direction orthogonal to the tilt direction, by driving rotation of the plurality of end surface driving rollers 24.

  That is, the glass plate G in an inclined posture floated by air from a plurality of air jet outlets is supported by the end face driving roller 24 with its end surface on the lower end side in the inclined direction so as not to move downward in the inclined direction due to its own weight. It is transported in the transport direction.

  Then, the glass plate G that is moving in the moving region toward the transport direction is moved by the inspection unit 13 disposed above the substantially central portion in the longitudinal direction of the inclined air ejection surface portion 22 of the air table 21 during the movement. The entire board is inspected for defects.

  As described above, according to the inspection device 11, the glass plate G in an inclined posture floated by the air ejected from the air ejection port of the inclined air ejection surface portion 22 of the air table 21 of the glass plate conveying device 12 is the glass plate G. In the state where the end surface on the lower end side in the inclination direction is in contact with the outer peripheral surfaces of the plurality of end surface drive rollers 24 of the transport means 23, the end surface drive roller 24 moves in the moving region in the transport direction by driving rotation. Therefore, unlike the conventional case, the glass plate G is less likely to become dirty or scratched, the moving glass plate G does not meander, and the end face driving roller 24 of the conveying means 23 Since only the end face on the lower end side in the inclination direction is in contact, the entire inspection of the glass plate G can be performed by the inspection unit 13.

  In addition, the number of parts is small, the configuration is simple, and the manufacturing cost can be reduced as compared with the conventional conveying device shown in FIGS.

  In the above-described embodiment, the configuration in which the air table 21 has the inclined air ejection surface portion 22 on the upper surface portion has been described. However, for example, the air table 21 has a horizontal air ejection surface portion on the upper surface portion, and from the air ejection port. The glass plate G may float in an inclined posture by adjusting the air to be ejected.

  Further, the conveying means 23 for conveying the glass plate G while supporting the end surface on the lower end side in the inclination direction of the inclined glass plate G is limited to one having a plurality of end surface driving rollers 24 arranged in the conveying direction. For example, it may be a member having a rod-shaped support conveyance body that conveys the glass plate G in the inclined posture by moving the glass plate G in the inclined posture while supporting the end surface on the lower end side in the inclination direction.

It is a side view of the glass plate conveying apparatus which concerns on one embodiment of this invention. It is a top view of a glass plate conveying apparatus same as the above. It is a side view of the conventional glass plate conveying apparatus. It is a top view of the conventional glass plate conveying apparatus same as the above.

Explanation of symbols

11 Inspection equipment
12 Glass plate conveyor
13 Inspection department
21 Air table
22 Inclined air ejection surface part that is the air ejection surface part
23 Transport means
24 End drive roller G Glass plate

Claims (2)

A glass plate transport device used in an inspection device for inspecting a glass plate for defects in an inspection unit disposed above a moving region of the glass plate moving in the transport direction,
An air table that has an air ejection surface portion in which a plurality of air ejection ports are formed on an upper surface portion, and floats a glass plate in an inclined posture with air from the air ejection port;
Conveying means for contacting the glass plate in the inclined direction at the lower end side in the inclined direction of the glass plate in an inclined posture floated by air from the air outlet and moving the inclined inclined glass plate in the moving region in the conveying direction; A glass plate conveying apparatus comprising: The conveying means has a plurality of end surface driving rollers arranged along the conveying direction,
The glass plate in an inclined posture floated by air from the air outlet of the air ejection surface portion of the air table is driven with the end surface driving in a state where the end surface on the lower end side in the inclination direction of the glass plate is in contact with the outer peripheral surface of the end surface driving roller. The glass plate conveying device according to claim 1, wherein the glass plate conveying device moves in a moving region in a conveying direction by rotation of a roller.

Images