JPS6222805Y2 - - Google Patents

Description

[Detailed description of the invention] This invention is a rolling equipment or a pickling treatment equipment,
This invention relates to optical plate width gauges used in various process lines such as slitting equipment and surface treatment equipment.

Generally, it is required to measure the width of rolled material in the process line, but this width measurement device uses a non-contact method because it avoids failure, has high measurement accuracy, and has low equipment costs. Optical width measuring devices are widely used. In order to improve the measurement accuracy, it is desirable for this width measuring device to be placed as close to the material to be measured, that is, the rolled material, as possible. Damage to the width measuring device may occur due to various causes, such as contact with the width measuring device due to deformation, impact due to sagging of the rolled material during sheet passing, or collision by the broken rolled material when the rolled material breaks. Therefore, in order to protect the width measuring device, it is necessary to provide a space between it and the rolled material, which has the disadvantage that measurement accuracy has to be sacrificed.

The present invention was developed in view of the above-mentioned points, and its characteristics are that running rails are provided at appropriate positions on the pass line through which the rolled material passes, so as to be orthogonal to the pass line, and above the rail, the pass line is A protective plate formed with an opening through which the measuring light beam passes is placed directly below the protective plate, and a protective grid is erected above the protective plate with a passage gap for the rolled material, and the opening of the protective plate is In addition to disposing a compressed air jet nozzle on the rail, a width measuring device comprising a light emitting source and a light receiver arranged opposite to each other is installed on the running track so that it can run freely.

The optical plate width meter according to the present invention will be described in detail below based on the illustrated embodiment.

FIG. 1 shows the schematic layout of the equipment when the present invention is applied to the skin-pass rolling equipment, especially the exit side (winding device side) of the skin-pass rolling mill; 1 indicates the skin-pass rolling mill;
A gamma ray thickness meter 2 for measuring the thickness of the rolled material S is arranged on the exit side of this skin pass rolling mill, and a shearing machine 3 for cutting the leading and trailing ends of the rolled material S is further arranged. Width measuring device 4 for measuring the width dimension of
are arranged, and a deflector roll 5 for guiding the rolled material and a winder 6 for winding up the rolled material are arranged.

FIG. 2 shows an optical plate width meter 4 according to the present invention.
A running rail 10 is laid in a direction perpendicular to the pass line P, and at the pass line position of this running rail 10, an opening through which a light beam for measurement passes is provided directly below the pass line so that its upper surface is substantially flush with the pass line. A protective plate 11 formed with a support column 12 is provided with a width measuring device 1, which will be described later, at the bottom of the support column 13.
A protection grid 14 is provided on the top of the protection plate 11 so as to form a travel gap for the rolled material S traveling along the pass line. In addition, on both sides of the opening 12 of the protective plate 11, there are holes for scattering and removing dust, scale powder, etc. falling from above to prevent dust, scale powder, etc. from adhering to the light-receiving surface and degrading its sensitivity. A compressed air jet nozzle 15 is provided. A width measuring device 16 is movably mounted on the running track 10, and includes a conventionally known light emitting source and a light receiver arranged opposite each other through a U-shaped frame.

In the optical plate width meter having the above configuration, when the width measuring device 16 is moved on the running rail 10 and moved into the pass line P, the light receiver 16a of the width measuring device 16 detects the distance between the protective plate 11 The light emitting source 16b will be located above the protective grid 14 erected on the protective plate 11. The width dimension of the rolled material is measured by having the light receiver 16a receive a light beam that passes through the opening 12 of the protection plate 11 from the light emitting source 16b provided at the top. In the measurement state, for example, a plate breakage occurs in the rolling material while it is running,
Even if the end collides with the width measuring device 16, the light emitting source 16b and the light receiver 16a of the width measuring device 16 are protected by the protective plate 11 and the protective grid 14, so they will not be damaged, and the In the running state, dust falling from the opening 12 of the protection plate 11 is scattered by the compressed air jet nozzle 15 provided in the opening 12, thereby preventing deterioration of the sensitivity of the light receiver 16a.

As is clear from the above explanation, according to the optical sheet width meter according to the present invention, the light receiver and the light emitting source of the width measuring device are protected against collisions caused by breakage, sagging, etc. of the rolled material by the protective plate and the protective grid, respectively. This makes it possible to reduce the distance between the light emitting source and the receiver, which not only improves measurement accuracy, but also prevents damage to the equipment and reduces maintenance work compared to a simple configuration. The effect of shiso is great.

[Brief explanation of the drawing]

FIG. 1 is a schematic explanatory diagram showing an example of a process line, and FIG. 2 is a perspective view showing an optical plate width meter according to the present invention. In the figure, 1 is a temper rolling mill, 2 is a gamma-ray thickness meter, 4 is a width measuring device, 10 is a running rail, 11 is a protection plate, 12 is an opening, 14 is a protection grid, and 15 is a jet nozzle.

Claims (1)

[Scope of utility model registration request] A running rail is provided at an appropriate position of the pass line through which the rolled material passes, so as to be orthogonal to the pass line, and a protective plate formed with an opening through which the measurement light beam is placed is placed above the rail and directly below the pass line. , and a protective grid is provided in the upper part of the protective plate with a passage gap for the rolled material, and a compressed air jet nozzle is arranged in the opening of the protective plate, and
An optical board width meter characterized in that a width measuring device comprising a light emitting source and a light receiver arranged opposite to each other is provided on a running track so as to be freely movable.