JPS5813896A - Laser marking apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a laser marking device that projects a clear laser marking image onto a specific part of a face when a dynamite is installed on a specific part of the face in, for example, trench excavation. be.

In conventional technology, for example, when constructing a dynamite installation hole in a tunnel excavation face, a worker sets a marking origin hole in accordance with the soil quality of the target face, and measures the dimensions based on the origin hole position. However, marking is done manually one by one, which takes a lot of time and is subject to individual differences, so there has been a desire for a completely new marking device.

Experiments were also attempted using xenon lamps and halogen bulbs as light sources, but due to the diffusive nature of the light, clear projected images could not be obtained.

It is an object of the present invention to provide a completely new laser marking device that utilizes the focusing, straight-travelling, and high-energy properties of a laser in order to overcome the drawbacks of the prior art.

The configuration, operation, effects, etc. of the laser marking device of the present invention will be explained in detail with respect to one embodiment shown in FIGS. 1 and 2.

In FIG. 1, reference numeral 1 indicates a laser marking device according to the present invention, and reference numeral 2 indicates a track having a height of 5 to 7 m and a width of 7 to 10 m. 3 is the incisal edge, 4 is the origin of laser beam projection, and 5 is a drilling position mark for dynamite filling, which is marked on the incisal edge 3 by an operator using, for example, enamel paint according to the laser beam projected from the laser marking device 1. The distance between the laser marking device 1 and the face is 7 by measurement.
Let m be constant.

There are many drilling positions 5 for dynamite filling, which are predetermined depending on the soil quality of the drilling site.

FIG. 2 is a detailed explanatory diagram of the laser marking device 1 according to the present invention.

In FIG. 2, numeral 6 is a continuous wave oscillator, for example, a He--Ne laser oscillator with an output of 6 mW, which is attached to an optical bench 7.

8 is a laser beam reflecting mirror, and the laser beam is reflected and projected from point A. Reference numeral 9 denotes a mirror drive unit that can arbitrarily move the mirror 8 vertically and horizontally, and a plurality of information perforated plates 11 are provided at positions approximately 20 crn away from point A easily and quickly by manual control, microcomputer control, or pulse motor control. A laser beam is transmitted sequentially from the hole in the hole 1 to the hole positions, and a bright red laser beam is applied to the surface of the face 3 at a distance of about 7 m from the point A at a portion corresponding to the plurality of holes in the information perforation plate 11. A bright spot can be generated.

The operator can draw a perforation site with paint such as enamel at the site of the laser spot of approximately 15 m+φ projected onto the surface of the face 3.

With the laser marking device 1 of the present invention, it is possible to easily mark the perforation position on the face in a short time and with high precision, and the effect is great.

'The laser marking device according to the present invention has a wide range of applications, such as marking for civil engineering and construction, soldering of electronic equipment, wrapping wiring work of electrical equipment, etc., in addition to marking the perforation position of the face, and has a remarkable effect in general use. It is something that demonstrates the.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram showing one embodiment of the present invention, and FIG. 2 is a detailed explanatory diagram of the apparatus of the present invention. l Laser marking device 6 Laser oscillator 8 Reflection mirror 9 Reflection mirror vertical and horizontal drive mechanism 11 Information perforation plate 3 Face 5 Perforation mark

Claims (1)

[Claims] In a device that performs marking by projecting a laser beam onto a target object, there is a perforation information board corresponding to the marking pattern, and a laser beam is guided vertically, horizontally, and sequentially to each of a plurality of holes in the perforation information board. drivable mirrors and rays, −
A laser marking device comprising: a laser oscillator;