JPH0653920U - Plate inspection device - Google Patents

Abstract

(57) [Abstract] [Purpose] A plate-shaped body that easily inspects the shape of the plate-shaped body in a direction intersecting the outer shape of the plate-shaped body in the longitudinal direction (in particular, a direction orthogonal to the longitudinal direction of the plate-shaped body). Providing inspection equipment. [Structure] The first support column P1 is provided with a fixed leg portion B1 for fixing the position of the first support column P1, and a pedestal F is swingably provided around the first support column so that the pedestal F swings. A movable leg portion B2 that movably supports the second support column P2 is provided on the second support column B2, and a pair of sensors S are attached so as to be synchronously movable from one end side to the other end side of the gantry F, respectively. A drive device 4 for moving the is provided.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a plate-shaped body inspection apparatus for inspecting the surface condition of a plate-shaped body such as a plate glass while continuously moving the plate-shaped body. More specifically, it is installed on both sides of the plate-shaped body that moves continuously. A pair of first and second struts, and a pair of upper and lower pedestals provided on the front and back sides of the plate-like body over the first and second struts, respectively, and each of the pedestals provided on the pair of pedestals, respectively. The present invention relates to an inspection device for a plate-shaped body including another sensor.

[0002]

[Prior art]

 Conventionally, such a plate-shaped body inspection apparatus has a pair of upper and lower pedestals whose both ends are fixedly supported by a pair of position-fixed stanchions, and separate sensors for inspecting the surface state, etc. In some cases, it was fixed and the plate-like body was moved while sampling was conducted.

[0003]

[Problems to be solved by the device]

 However, in such a plate-shaped body inspection apparatus, although it was possible to perform the inspection in the longitudinal direction of the plate-shaped body, it was not possible to perform the inspection along the width direction of the plate-shaped body.

Therefore, an object of the present invention is to provide an inspection apparatus for a plate-shaped body, which can perform an inspection along the width direction of the plate-shaped body and can perform inspection in accordance with required inspection accuracy. To provide.

[0005]

[Means for Solving the Problems]

 In order to achieve this object, a characteristic structure of the present invention is that a first support column is provided with a fixed leg portion for fixing the first support column, and a pair of upper and lower mounts is swingably provided around the first support column. And a movable leg that supports the second support so as to move with the swing of the pair of upper and lower mounts is provided on the second support, and a pair of sensors are respectively synchronized from one end side to the other end side of the mount. A drive device for moving the sensor is provided.

[0006]

[Action]

 In other words, while the sensor is moved by the drive device along the pedestal that straddles the moving plate-shaped body, the detection operation is performed at a plurality of points, so that the inspection along the width direction of the plate-shaped body can be performed. Moreover, since the other end of the gantry is swingable with one end as a fulcrum, the angle of the gantry with respect to the moving direction of the plate can be changed, thereby changing the moving speed of the plate. The relative velocity between the plate and the sensor can be changed while keeping the same value. That is, if the gantry is tilted toward the lower side of the plate-like body in the moving direction, the relative speed of the sensor with respect to the plate-like body decreases as the amount of tilting increases, so the density of inspection points is increased and highly accurate detection is performed. Will be able to.

[0007]

[Effect of device]

 Therefore, according to the inspection apparatus of the present invention, it is possible to inspect in the width direction of the plate-like body by moving the sensor, and it is not necessary to change the moving speed of the plate-like body by swinging the gantry. Accordingly, the accuracy of inspection can be improved.

[0008]

【Example】

 An embodiment in which the plate-shaped body inspection device of the present invention is used to inspect plate glass D continuously produced by the float method will be described with reference to the drawings.

FIG. 2 is a vertical sectional side view of the inspection device for a plate-shaped body according to the present invention. The upper and lower sides of the plate glass D that pivotally supports the first support pillar P1 around the axial center of the fixed leg portion B1 that fixes the first support pillar P1 and moves the pair of mounts F continuously on the roll 1. Is provided over the first support column P1 and the second support column P2 in a state of being arranged in a state of being arranged so as to support the second support column P2 with the movable leg portion B2 movable according to the swing of the gantry F accompanying the rotation operation of the first support column P1. The caster 2 and the fixed portion 3 are arranged on the both sides of the plate glass D that continuously moves on the roll 1, and the first and second support columns P1 and P2 are arranged on both sides of the plate glass D. A drive unit 4 for moving the laser distance sensor S is attached in series so as to be attached so as to be synchronously movable from one end side to the other end side of the gantry F.

In this inspection apparatus for a plate-shaped body, as shown in FIG. 1, θ (0 ° ≦ θ ≦ with respect to the lower side in the moving direction of the plate glass D that continuously moves on the roll 1 at a speed v, for example. When the laser distance sensor S is installed at an angle of 90 °), the speed V ′ at which the laser distance sensor S moves along the plate glass D becomes V ′ = Vcos θ = v / tan θ, and the larger θ is, the laser Since the relative speed at which the distance sensor S moves in the width direction of the plate glass D can be reduced, the shape of the plate such as the thickness of the plate glass D and the warp of the plate glass D can be accurately inspected by the laser distance sensor S. Further, the smaller θ is, the larger the speed V'of the plate glass D of the laser distance sensor S moving relatively in the width direction becomes, and the plate glass D 1 can be inspected many times per unit length in the longitudinal direction. The necessary inspection can be performed according to the conditions.

[Other Embodiments] In this embodiment, the inspection device for the plate-shaped body is applied to the plate glass D continuously produced by the float method, but the present invention is not limited to this, and the plate-shaped inspection device is used. If so, it can be applied. Plate-shaped materials such as plate glass and steel plates are collectively referred to as a plate-shaped body D.

Further, the first support pillar P1 is rotatably attached to the fixed leg portion B1, but the first support pillar P1 is fixed to the fixed leg portion B1 and the pedestal F is attached to the first support pillar P1. It may be mounted so that it can be rocked. That is, it is sufficient that the relative angle of the gantry F with respect to the plate-like body D can be changed.

Further, the moving leg B2 may not be provided with the caster 1, and for example, the moving leg B2 may be configured to move on a rail previously installed.

Further, the sensor S is not limited to the laser distance sensor S, and a contact displacement sensor S as shown in FIG. 3 can be used. In other words, this contact type displacement sensor S has a sensor support table 5 which is movable along the gantry F mounted on the gantry F, on which the movable shaft 6, the shaft support 7 and the roller measuring element 8 are attached. The contact type displacement sensor S is attached to the shaft support 7 so that the movable shaft 6 can be retracted and retracted, and the roller probe 8 is attached to the plate-shaped body D at the tip of the movable shaft 6. Configured. Then, the shape of the plate-shaped body D can be inspected by measuring the amount of withdrawal of the movable shaft 6 with respect to the shaft support. In such a case, by appropriately setting the diameter of the roller, it is possible to carry out the inspection while keeping the roller stylus from moving up and down against a slight change in the shape of the surface of the plate D. This is effective when examining only changes in the overall shape. The inspection means such as the laser distance sensor and the contact type displacement sensor are collectively referred to as a sensor S.

Further, in the case of actually performing the inspection, after performing a measurement on a standard plate as a reference in advance, the plate-shaped body D to be actually inspected is measured, and the actual measurement result for the standard plate is used. By calibrating the measurement result of the plate-like body D, it is possible to perform a more accurate measurement.

In the claims of the utility model, reference numerals are added for convenience of comparison with the drawings, but the present invention is not limited to the configurations of the accompanying drawings by the entry.

[Brief description of drawings]

FIG. 1 is a plan view of a plate-shaped inspection device according to the present invention.

FIG. 2 is a vertical cross-sectional side view of the inspection device for a plate-shaped body of the present invention.

FIG. 3 is an enlarged view of a sensor part according to another embodiment of the present invention.

[Explanation of symbols]

 4 Drive device D Plate-like body P1 1st support | pillar P2 2nd support | pillar F stand S sensor B1 fixed leg part B2 moving leg part

Claims (1)

[Scope of utility model registration request] 1. A pair of first and second columns (P1), (P2) installed on both sides of a plate-like body (D) that moves continuously,
A pair of upper and lower pedestals (F) and (F) provided between the first and second columns (P1) and (P2) on both front and back sides of the plate-like body, and a pair of the pedestals (F) and (F). An inspection device for a plate-shaped body, comprising: separate sensors (S) and (S) provided in F), wherein the first support pillar (P1) is fixed in position on the first support pillar (P1). A fixed leg (B1) is provided, and the mounts (F) and (F) are attached to the first support column (P1).
A movable leg portion (B2), which is swingably provided around the pedestal and supports the second support column (P2) so as to be movable with the swing of the gantry (F), (F), is attached to the second support column (P2). And the pair of sensors (S), (S) are provided on the mount (F),
An inspection apparatus for a plate-like body, which is attached so as to be movable from one end side to the other end side of (F) in a synchronous manner, and is provided with a drive device (4) for moving the sensors (S), (S).