JP3062947B1 - Laser ink detector - Google Patents

Abstract

[Summary] [Problem] Switching of blackout in the vertical, horizontal and ceiling directions is 9
It can be easily done by hand rotation of 0 degree, and it is possible to carry out such three-direction laser marking with one laser irradiation unit. To provide a laser irradiation direction adjustment mechanism that is performed according to the ground ink at the time of factory shipment. SOLUTION: Three plane bodies which are connected to each other vertically are provided, and a laser irradiation unit attached to only one plane body is provided, and a leveler and its adjusting screw are arranged on the inner surface of each plane body, An arbitrary flat body is selected and used with its outer surface adjusted horizontally against the ground by the foot fixed to the surface and the end of the adjusting screw.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a laser marking device used for positioning work performed on a construction site, and more particularly, one laser line can be used for a vertical line, a horizontal line, and a ceiling line. The present invention relates to a novel structure of a laser marking device and a mechanism for adjusting a laser irradiation direction mainly performed according to the ground ink at the time of factory shipment.

[0002]

2. Description of the Related Art A mechanism for automatically correcting a laser irradiation direction has been mainly proposed, such as a method using a tilt angle sensor and a microcomputer, or a method using a down swing mechanism (gyro gimbal). In either method, the automatic correction mechanism and the laser irradiation unit are integrated, so if you use three ways (vertical line, horizontal line, ceiling line), one laser is applied to the vertical line and one laser is applied to the horizontal line. In addition, since one laser is used for the ceiling line, a total of three lasers are used.

On the other hand, there is a method in which one laser line is optically divided and used by using an optical lens, a prism or the like. However, when the laser line is divided optically, if it is divided into two, the brightness of the divided laser line becomes 1
Therefore, in order to make the brightness the same, it is necessary to double the brightness of the laser line before dividing it into half. When the brightness is doubled, the price of the semiconductor laser is doubled, and further, an optical lens, a prism and the like are required.

[0004] Under these circumstances, a system using a plurality of inexpensive semiconductor lasers as compared with a high-power semiconductor laser is superior to a system in which one expensive high-power semiconductor laser is used and optically dividing laser lines. There seems to be. However, since the automatic correction mechanism of the laser irradiation direction is complicated and even a single semiconductor laser is expensive, the conventional method is expensive even with a method using a single laser, and even more expensive with a method using multiple lasers. there were.

[0005]

Since the above-mentioned conventional laser marking device is expensive and its purchase is often limited to corporations, a laser marking device that is inexpensive and can be purchased by small businesses and individuals is desired. Was rare. An object of the present invention is to switch the ink marking in the vertical, horizontal, and ceiling directions not automatically, but simply by hand, and to enable such three-direction laser marking with one laser irradiation unit. Another object of the present invention is to provide a laser marking device which is easy to carry, is easy to use, and is inexpensive, and a mechanism for adjusting a laser irradiation direction which is mainly performed at the time of shipment from a factory in accordance with the black ink.

[0006]

Means for Solving the Problems The first object mentioned above is as follows.
It comprises three planes connected perpendicularly to each other and a laser irradiation unit attached to one of the planes, and a leveler and its adjusting screw are arranged on the inner surface of each plane, and optionally This is achieved by selecting a flat body and adjusting its outer surface horizontally against the ground with the foot fixed to the surface and the end of the adjusting screw. This allows
The one laser irradiation unit makes it possible to mark a vertical line, a horizontal line or a ceiling line.

[0007]

A second object is to provide a lens barrel having a laser irradiation part comprising a semiconductor laser and an optical system internally fixed therein, and a tube with a flange for loosely fitting the lens barrel into an inner hole. A holder, and a mounting portion to which the holder is mounted by a mounting screw via a flange portion. The flange portion is provided with at least two other screw holes, and is simply pressed against an opposing mounting support portion. This is achieved by providing as many pressing screws as possible. Thereby, the irradiation direction of the laser is adjusted by the mounting screw and the pressing screw.

[0009]

The three planes connected vertically to each other have inner and outer surfaces which are perpendicular to each other, and any one of the planes can be selected and the outer surface thereof can be adjusted horizontally by facing the ground. To do so, the operator selects one of the vertical, horizontal and ceiling lines, and the outer surface is adjusted to be horizontal by a leveler and an adjusting screw arranged on the inner surface. On the three mutually perpendicular outer surfaces, the 90-degree rotation is easily performed manually, and the vertical, horizontal and ceiling lines are marked using one laser irradiation window. More specifically, the vertical line is rotated 90 degrees to the left from the initial position, the horizontal line is rotated 90 degrees to the left from the initial position, and the ceiling line is rotated 90 degrees to the rear from the initial position. That is, it has an external structure that can be rotated 90 degrees in two directions from the initial position.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a schematic perspective view showing an embodiment by isometric projection, FIG. 2 is a similar view showing the back side, and FIG. 3 is an operation explanatory view. As shown in FIG.
Reference numerals 0, 20, and 30 denote plane bodies connected to each other perpendicularly. The respective inner surfaces 10i, 20i, and 30i are mutually perpendicular surfaces, and the respective outer surfaces 10e, 20e.
e and 30e are also perpendicular to each other as shown in FIG.

The flat body 10 has a horizontal unit (bubble tube) 12 and an adjusting screw 14 disposed on its inner surface 10i. The flat unit 20 has a horizontal unit (bubble tube) 22x, 2x, and 2x on its inner surface 20i.
2y and their adjusting screws 24x, 24y are arranged, and the plane 30 has an inner surface 30i on which a level (bubble tube) 32 and its adjusting screw 34 are arranged at 30i. In addition,
One laser irradiation unit is attached to the plane body 10, 40w is an irradiation window thereof, 40c is a dry cell lid of a semiconductor laser (not shown), and 40s is a switch.

As shown in FIG. 2, a screw end 14e of the adjusting screw 14 and feet 16a and 16b fixed to the outer surface 10e of the flat body 10 are seen. Similarly, adjusting screws 24x, 2
4y screw ends 24xe, 24ye and fixed foot 26
And an adjusting screw 3 is provided on the outer surface 30e of the flat body 30.
Four threaded ends 34e and two feet 36a, 36b can be seen. Further, line marks 18a, 38a, 38b are provided along the central axis of the laser irradiation window 40w.

Next, an operation example of the above embodiment will be described with reference to FIG. (A) When the mode shown in the center of the figure is the initial position or the normal position, the vertical line VL is marked on the wall facing the laser irradiation window 40w. The laser marking device may be placed so as to match the line to be irradiated by pressing the switch 40 s with the existing ground ink FL. Foot 16a and foot 16
b, the line mark 18a and the line mark 18b, or the line mark on the side opposite to one foot may be aligned with the ground ink FL. The level adjustment screw 14 adjusts the level of the leveler 12 so that the air bubble comes to the center. When the adjustment is completed, the vertical line V that matches the ground FL
L is obtained on the opposing wall.

(B) When a horizontal line is used, it may be rotated 90 degrees to the left of the normal position (see the left side of FIG. 3). Since it is a horizontal line, it is not related to the ground ink FL. The horizontal level and the level adjustment screw are X
For the axis (22x, 24x) and for the Y-axis (22
y, 24y) It is preferable to attach one pair at a time. The reason for providing the Y-axis is to adjust the height of the horizontal line to be the same near and far from the laser marking device. If the heights are different, a problem occurs that the height of the horizontal line changes depending on the distance. As a specific example, if a horizontal line is applied diagonally to a cylindrical object, the horizontal line appears to be bowed, as you can imagine. (The height changes depending on where the horizontal line hits.) The horizontal line appears to be bent. Foot 26 and level adjustment screw 2 for X axis in horizontal state
The adjustment is performed by a combination of 4x, and the adjustment is performed so that the bubble of the horizontal unit 22x for the X axis becomes the center. Next, the adjustment of the X-axis is left as it is, and the Y-axis is adjusted with the Y-axis level adjusting screw 24y so that the bubble of the horizontal unit 22y of the Y-axis is adjusted to the center. When the X and Y axes have been adjusted, a horizontal line H
L is obtained.

(C) When adjusting to the ceiling line, rotate it 90 degrees from the position placed on the vertical line or horizontal line marking. Incline 90 degrees to the back from the normal position (Fig. 3
On the right). And foot 36a and foot 36b, line mark 3
The mark 38b similar to 8a or the mark on the opposite side of one foot is aligned with the ground ink (the ground line of the vertical line to be adjusted) FL. The level adjustment screw is adjusted so that the bubble of the leveler 32 is at the center. Ceiling line C that matches the vertical line after adjustment is completed
L is obtained. The horizontal line adjustment state can be obtained by tilting the ceiling line by 90 degrees to the left from the ceiling line adjustment state instead of the state of the normal position (vertical line ink generation).

FIG. 4 is a perspective view showing a mode in which a laser irradiation unit is mounted, and 10f is a mounting support.
5 is a vertical sectional view taken along the line VV in FIG. 4, FIG. 6 is a schematic cross sectional view thereof, and FIG. 7 is a line VII in FIG.
FIG. 8 is a left end view of FIG. 6.

In FIG. 5, 40 i is a semiconductor laser, 40 b is a circuit board, 40 s is an aspheric lens, 40 r
Is a rod lens, and these constitute a laser irradiation unit. 42 is a tubular holder with a flange, 42f
Is a flange portion, 42b is an inner hole portion, 42s is a trunk portion, 42r.
Is an O-ring. 44h is a head, 44a is an aspheric lens holder, 44r is a rod lens holder, 44i
Are insulating spacers, which constitute a lens barrel and internally fix the laser irradiation part, and this lens barrel is loosely fitted into the inner hole 42 b of the tubular holder 42. 46g is a cover glass of a laser irradiation window, which is pressed against a pressing plate 46p via an O-ring 46r and is fixed by screws 46s.

The mounting support 10f has a concave cutout in advance, and a tubular holder 4 having a flange therein.
2 is accommodated, and a mounting screw 48 is attached to the flange portion 42f.
i is attached to the opposed mounting support 10f through i.

According to the present invention, apart from the mounting screw 48i, at least two screw holes are provided in the same flange portion 42f, and the screw 48s is provided which merely comes into contact with and presses the opposite mounting support portion 10f. The irradiation directions on the left and right of the laser are adjusted by the screw 48i and the pressing screw 48s.

Further, at least two L-shaped notches 44L (see FIG. 7) are provided on the peripheral surface of the cylindrical head 44h, and screw holes are provided in the other mounting support 10f and the body 42s of the tubular holder. The end of the screw 49a hits the notch, and the screw 44a is screwed into the head 44h.
Is rotated and adjusted to an appropriate position, a screw hole is similarly provided, another screw 49b is screwed in, and the end of the screw 49b contacts the peripheral surface of the head 44h to fix the head 44h.

According to the embodiment shown in FIGS. 5 to 8,
Mainly at the time of factory shipment, the laser irradiation direction can be adjusted right and left and the rotation angle using a driver (not shown) in accordance with the ground ink. In the illustrated example, three mounting screws 48i and three pressing screws 48s are shown, but the number is not limited to three.

The laser irradiation direction adjusting mechanism according to the present invention is not limited to the basic type of laser marking device having three planes connected perpendicularly to each other as shown in the present application, but also to any other type using a semiconductor laser. Also applies to inking devices.

[0023]

According to the present invention, the switching of black ink in the vertical, horizontal, and ceiling directions is not automatically performed, but is easily performed manually, and such a laser irradiation unit in one of three directions can be obtained by one laser irradiation unit. Ink removal is possible, and a laser inking device that is easy to carry, easy to use, and inexpensive can be obtained. In addition, adjustment of the laser irradiation direction is easily performed mainly at the time of factory shipment according to the ground ink.

[0024]

[Brief description of the drawings]

FIG. 1 is a front view, a left side view, and a front view showing an embodiment of the present invention;
FIG. 2 is a perspective view including a plan view.

FIG. 2 is a perspective view including a rear view, a right side view, and a bottom view of the embodiment.

FIG. 3 is an operation explanatory view of the embodiment.

FIG. 4 is a perspective view showing a mounting mode of a laser irradiation unit.

FIG. 5 is a vertical sectional view taken along line VV in FIG. 4;

FIG. 6 is a schematic cross-sectional view of FIG.

FIG. 7 is a schematic sectional view taken along line VII-VII in FIG. 6;

FIG. 8 is a left end view of FIG. 6;

[Explanation of symbols]

 10, 20, 30 Planar body 12, 22, 32 Leveler (bubble tube) 14, 24, 34 Horizontal adjustment screw 16, 26, 36 Foot 18a Laser irradiation window VL Vertical line HL Horizontal line CL Ceiling line FL Ground ink 42 Flange Attached tubular holder 44h cylindrical head 44a aspherical lens holder 44r rod lens holder 44L L-shaped cutout on head peripheral surface 48i mounting screw 48s contact screw 49a head rotating screw 49b head fixing screw

Claims (3)

(57) [Claims] The present invention comprises three planes which are vertically connected to each other, and a laser irradiation unit attached to one of the planes, and a leveler and its adjusting screw are provided on the inner surface of each plane. Is arranged, an arbitrary flat body is selected, and its outer surface is adjusted horizontally against the ground by a foot fixed to the surface and the end of the adjusting screw, and a vertical line is formed by the one laser irradiation unit. A laser marking device capable of marking a horizontal line or a ceiling line. 2. The leveler according to claim 1, wherein a leveler and its adjusting screw are arranged in two-dimensional directions on an inner surface of a plane used for marking a horizontal line. Laser marking device. 3. A lens barrel having a laser irradiation part internally comprising a semiconductor laser and an optical system fixed therein, a tubular holder having a flange for loosely fitting the lens barrel to an inner hole, The holder comprises a mounting support portion mounted by a mounting screw through the flange portion, and the flange portion is provided with at least two other screw holes, and is simply pressed against the opposing mounting support portion by pressing. A laser irradiation direction adjusting mechanism comprising a screw, wherein a laser irradiation direction is adjusted by a mounting screw and a pressing screw.