JP2002131055A - Wiring structure of power source part of laser marking device and laser drive circuit board - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the wiring structure of the power source part of a laser marking device and a laser drive circuit board without disconnection of wiring even when suppression force due to the swing action of a gimbal part by using a flexible wiring board connecting the power source part and the laser drive circuit board by the swing action of the gimbal part. SOLUTION: The laser marking device body 3 provided with a light output part 7 connecting the power source part 2 and the laser drive circuit board 4 of the laser marking device body 3 by the flexible wiring board 5 and outputting laser light 6, an optical system 8 radiating output from the light output part 7 to the outside, and a downward reference point radiation part 9 outputting light downward vertically, is swingably arranged through the gimbal part 11 in a cylindrical outer shell 10, and connected to the power source part 2 and the laser drive circuit board 4 in the state that the connection part 20 of both the ends of the flexible wiring board 5 is twisted having a vertical face.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wiring structure between a power supply section of a laser inking device and a laser driving circuit board for performing ink mark-out using line light generated by a laser.

[0002]

2. Description of the Related Art A power supply unit 3 of a conventional laser marking device 30.
As shown in FIG. 6, the wiring structure between the laser drive circuit board 32 and the power supply section 31 provided on the leg 34 of the laser marking device main body 33 and the laser drive circuit board 32
And a thin copper wire 35, and irradiate a laser to project a line light or a spot light on a ceiling surface or a wall surface to perform blackout. The laser marking device 30 is swingably disposed via a gimbal portion 36. The shaking position of the gimbal portion 36 in the X, Y, and Z directions is specified, and the laser beam is specified. Was radiating. However, a force was exerted to suppress the swinging operation of the gimbal portion 36 by the thin copper wire 35 connecting the power supply portion 31 and the laser drive circuit board 32.

[0003] Therefore, there is a problem that the thin copper wire 35 connecting the power supply unit 31 and the laser drive circuit board 32 is disconnected or the solder part is detached by repeating the swing operation of the gimbal unit 36. Was. for that reason,
The repair of the copper wire 35 was troublesome, and the construction time was lost.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and uses a flexible wiring board for connecting a power supply section and a laser drive circuit board for a swing operation of a gimbal section. Another object of the present invention is to provide a wiring structure between a power supply section of a laser marking device and a laser driving circuit board, which does not break even when a suppressing force due to the swinging operation of the gimbal portion is applied to the flexible wiring board.

[0005]

According to the first aspect of the present invention, the wiring structure between the power supply section of the laser marking device and the laser drive circuit board is flexible in that the power supply portion and the laser drive circuit board of the laser marking device body are flexible. An optical output unit that outputs laser light by connecting with a wiring board, an optical system that emits light output from the optical output unit to the outside, and a lower reference point emitting unit that outputs light vertically downward are provided. The wiring structure between the power supply unit of the laser marking device and the laser drive circuit board, in which the laser marking device body is swingably arranged via a gimbal portion in a cylindrical casing, and both ends of the flexible wiring board The connection portion is connected to the power supply portion and the laser drive circuit board in a state where the connection portion is twisted so as to have a vertical surface.

Therefore, even if the restraining force due to the swinging operation of the gimbal portion is applied to the flexible wiring board, there is no disconnection.

According to a second aspect of the present invention, the wiring structure between the power supply unit and the laser drive circuit board of the laser marking device is such that the flexible wiring board formed in the first aspect is formed by spirally connecting the power supply unit and the laser drive circuit board. The power supply unit and the laser drive circuit board are connected in a twisted state.

Accordingly, even if the restraining force due to the swinging motion of the gimbal portion is applied to the flexible wiring board, the restraining force is dispersed because the twisting is performed in a spiral shape, and there is no disconnection.

According to a third aspect of the present invention, the wiring structure between the power supply section and the laser drive circuit board of the laser marking device is such that the flexible wiring board formed in the first aspect has a gimbal composed of the power supply section and the laser drive circuit board. The power supply unit and the laser drive circuit board are connected in a state where the unit is covered and twisted by making a U-turn.

[0010] Therefore, even if the restraining force due to the swinging motion of the gimbal portion is applied to the flexible wiring board, the restraining force is dispersed and the disconnection is caused because the restraining force is distorted because the gimbal portion is twisted to cover the gimbal portion. There is no.

According to the fourth aspect of the present invention, the wiring structure between the power supply unit and the laser drive circuit board of the laser marking device is such that the flexible wiring board is loosely fitted to the axial center of the gimbal portion between the power supply unit and the laser drive circuit board. Then, it is connected to the power supply unit and the laser drive circuit board in a state of being U-turned and twisted.

Therefore, even if the restraining force due to the swinging operation of the gimbal portion is applied to the flexible wiring substrate, the flexible wiring substrate is loosely fitted to the axis center of the gimbal portion and connected in a twisted state by making a U-turn. In this state, the restraining force is dispersed and there is no disconnection.

[0013]

1 to 5 show an embodiment of a wiring structure between a power supply section and a laser drive circuit board of a laser marking device according to the first to fourth aspects of the present invention. This will be described below.

In FIG. 1A, a power source 2 and a laser driving circuit board 4 of a laser marking device main body 3 are connected to a tripod-shaped leg 1 by a plate-shaped flexible wiring board 5, and laser light 6a, An optical output unit 7 that outputs 6b and 6c, an optical system 8 that emits the light output from the optical output unit 7 to the outside such as a wall or a ceiling, and a lower reference point emitting unit 9 that outputs light vertically downward. This is a laser marking device in which a laser marking device main body 3 provided with the above is swingably arranged via a gimbal portion 11 in a cylindrical casing 10. The wiring between the power supply section 2 of the laser marking device A and the laser drive circuit board 4 is connected to the power supply section 2 and the laser drive circuit board 4 in a state where both ends of the flexible wiring board 5 are twisted so as to have vertical surfaces. What is connected. The flexible wiring board 5 is a strip-shaped connection line connecting the power supply section 2 and the laser drive circuit board 4, and has a connector-shaped connection section 2 on both ends.
0a and 20b are provided.

Therefore, electricity obtained from the power supply unit 2 is supplied to the laser drive circuit board 4 via the flexible wiring board 5. At this time, the gimbal portion 11 provided in the cylindrical casing 10 swings to an appropriate position, and if positioned, passes through the light source of the semiconductor laser 12 and the condensing lens 13 via the condensing lens 13 at that position. 6a is refracted by a light polarizing member 14 such as a half mirror of the optical system 8 and radiated toward a wall via a cylindrical lens 15. The other laser beam 6b passes through a light polarizing member 14 such as a half mirror and is emitted toward the ceiling. Then, ink is marked out by looking at the laser beams 6a and 6b.

At this time, by replacing the cylindrical lens 15, the vertical line light and the horizontal line light can be selectively output.

Further, as shown in FIG. 2, the gimbal portion 11 is swingably disposed in a cylindrical casing 10 formed in a double structure, so that the outer cylinder 16 is
The inner cylinder 18 is simultaneously swung by the rotation bearing 17b provided on the outer cylinder 16 at 0. The lower reference point radiating section 9 outputs the laser beam 6c vertically downward via the laser drive circuit board 4. At this time, the connection sections 20a and 20b at both ends of the flexible wiring board 5 connecting the power supply section 2 and the laser drive circuit board 4 are twisted so as to have a vertical surface, and the power supply section 2 and the laser drive circuit board 4 are twisted. And are connected.

The method of using the laser marking device A is to open the tripod-shaped leg 1 and ground the lower end thereof. If the light output unit 7 is operated with the laser marking device A placed, the laser light 6 output from the light source of the semiconductor laser 12 is condensed by the condensing lens 13 and then the gimbal unit 1
The laser beam passes through an opening 21 provided at the center of the light polarizing member 14 which is a half mirror that performs both light splitting and light deflection. The laser beam transmitted through the light polarizing member 14 is a point light directed vertically upward. The laser beam deflected by the light polarizing member 14 and directed in the horizontal direction becomes line light which spreads in a fan shape in the vertical direction by the cylindrical lens 15.

The half mirror 30 as the light polarizing member 14 has a high reflectivity (for example, a reflectivity of 90% and a transmittance of 10%), and the light quantity of the line light is larger than the light quantity of the point light. It is made to become. Further, here, the cylindrical lens 15 whose axis is oriented in the horizontal direction is used. However, if the cylindrical lens 15 whose axis is oriented in the vertical direction is used, horizontal line light can be output. These line light and spot light are appropriately designed.

Further, the casing 10 of the laser marking device A has a cylindrical shape with upper and lower ends closed, and a transparent plate 12 is disposed on the upper end surface, the lower end surface, and a part of the upper portion so as to point upward. The light, the downward point reference light, and the fan-shaped line light can be output to the outside.

Therefore, even if the restraining force due to the swinging motion of the gimbal portion 11 is applied to the flexible wiring board 5, the flexible wiring board 5 is connected in a twisted state in advance, so that the secondary Since the moment is different between the horizontal surface and the horizontal surface, even if there is a swinging motion, the flexible wiring board 5 is arranged in a twisted state so that the suppressing force is not generated, and the breaking force is not broken by dispersing the suppressing force. . Therefore, unlike the conventional thin copper wire for connecting the power supply unit 2 and the laser drive circuit board 4 as in the related art, the connection portions 20a and 20b at both ends of the strip-shaped flexible wiring board 5 are twisted to have a vertical surface. Since the power supply unit 2 and the laser drive circuit board 4 are connected in this state, there is no disconnection or the removal of the solder part. Further, it takes time and effort to repair the copper wire, and the construction time is not lost.

FIGS. 3A and 3B are diagrams showing a wiring structure between the power supply section 2 and the laser drive circuit board 4 showing different forms of connection of the flexible wiring board 5, which will be described below.

The flexible wiring board 5 is connected to the power supply section 2 and the laser drive circuit board 4 in a state of being spirally twisted between the power supply section 2 and the laser drive circuit board 4. At this time, it may be formed by winding in a coiled shape.

Therefore, even if the restraining force due to the swinging operation of the gimbal portion 11 is applied to the flexible wiring board 5, the flexible wiring board 5 is twisted in a spiral shape, so that the restraining force is dispersed and no disconnection occurs.

FIGS. 4A and 4B are diagrams showing a wiring structure between the power supply unit 2 and the laser drive circuit board 4 showing the connection of the flexible wiring board 5 according to still another embodiment, which will be described below.

The flexible wiring board 5 is connected to the power supply section 2 and the laser drive circuit board 4 in a state where the flexible wiring board 5 is twisted by making a U-turn so as to cover the gimbal section 11 with the power supply section 2 and the laser drive circuit board 4. Is what you do.

At this time, the flexible wiring board 5 wound so as to cover the shaft of the gimbal portion 11 is set so as not to move under the influence of the rotational force of the shaft. For this reason, the flexible wiring board 5 is in a stationary state around the axis of the gimbal portion 11 and slightly moves toward the lower power supply section 2, but the twist is formed in the flexible wiring board 5 in advance, so that the flexible wiring board 5 The operation can be performed without any significant suppressing force.

Therefore, even if the restraining force due to the swinging motion of the gimbal portion 11 is applied to the flexible wiring board 5, the gimbal portion 11 is covered with the U-turn in a twisted state so that the gimbal portion 11 is covered. And the suppression force is dispersed in the direction of the power supply unit, so that there is no disconnection.

FIGS. 5A and 5B are diagrams showing a wiring structure between the power supply unit 2 and the laser driving circuit board 4 showing the connection of the flexible wiring board 5 according to still another embodiment.

The wiring structure between the power supply section 2 of the laser marking device A and the laser driving circuit board 4 is a flexible wiring board 5
Of the flexible wiring board 5 so that the power supply section 2 and the laser drive circuit board 4 are aligned with the axial center of the gimbal section 11.
An opening 21 is formed in the gimbal portion 1.
The power supply unit 2 and the laser drive circuit board 4 are connected in a state where the power supply unit 2 and the laser drive circuit board 4 are loosely fitted on the center of the shaft 1 and twisted by U-turn. Opening 2 provided in flexible wiring board 5
Numeral 1 is set in a loose fitting state so that the flexible wiring board 5 does not move even when the axis of the gimbal portion 11 rotates.

Therefore, even if the restraining force due to the swinging motion of the gimbal portion 11 is applied to the flexible wiring board 5, the gimbal portion 11 is loosely fitted to the center of the shaft of the gimbal portion 11 and connected in a U-turn and twisted state. The wiring board 5 is in a supported state, the restraining force around the axis of the gimbal part 11 is reduced, and the restraining force is dispersed in the direction of the power supply unit 2, so that there is no disconnection.

[0032]

As described above, the wiring structure between the power supply unit and the laser driving circuit board of the laser marking device according to the first aspect of the present invention is such that the connecting portions at both ends of the flexible wiring board have vertical surfaces. Since the power supply unit and the laser drive circuit board are connected in a twisted state, the disconnection does not occur even if the suppressing force due to the swinging operation of the gimbal unit is applied to the flexible wiring board. Therefore, maintenance is easy because there is no need to replace wiring or solder as in the conventional case.

According to a second aspect of the present invention, the wiring structure between the power supply unit and the laser drive circuit board of the laser marking device is such that the flexible wiring board is formed by twisting the power supply unit and the laser drive circuit board in a spiral shape. Because it is characterized by being connected to the power supply unit and the laser drive circuit board,
Even if the restraining force due to the swinging motion of the gimbal portion is applied to the flexible wiring board, the restraining force is dispersed because the twisting is performed in a spiral shape, and there is no disconnection.

According to the third aspect of the present invention, the wiring structure between the power supply unit and the laser drive circuit board of the laser marking device is such that the flexible wiring board covers the gimbal portion with the power supply unit and the laser drive circuit board. The power supply unit and the laser drive circuit board are connected in a twisted state by making a U-turn. And the U-turn in a twisted state so as to cover the gimbal portion, the suppression force around the axis of the gimbal portion is reduced and the suppression force is dispersed in the direction of the power supply portion, so that there is no disconnection.

According to the fourth aspect of the present invention, the wiring structure between the power supply unit and the laser driving circuit board of the laser marking device is such that the flexible wiring board is loosely fitted to the axial center of the gimbal unit between the power supply unit and the laser driving circuit board. It is characterized in that it is connected to the power supply unit and the laser drive circuit board in a U-turned and twisted state. The flexible wiring board is supported in a state where it is loosely fitted to the center of the shaft and twisted by making a U-turn, and the restraining force of the gimbal portion around the shaft is reduced and the restraining force is reduced in the power supply direction. Are dispersed so that there is no disconnection.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a main part showing an internal state of an embodiment of a wiring structure between a power supply unit and a laser drive circuit board of a laser marking device according to the present invention.

FIG. 2 is a cross-sectional view of a main part showing a swinging mechanism of a gimbal portion of the laser marking device shown in FIG. 1;

FIG. 3A is a partially cutaway perspective view of an essential part showing an embodiment of a different embodiment of a wiring structure between a power supply unit and a laser drive circuit board of a laser marking device of the present invention, and FIG. It is a perspective view of a flexible wiring board arranged in a spiral shape.

FIG. 4A is a partially cutaway perspective view of a main part showing an embodiment of a different embodiment of the wiring structure between the power supply unit and the laser drive circuit board of the laser marking device of the present invention, and FIG. It is a perspective view of the principal part showing the state where the flexible wiring board was covered on the axis of the gimbal part.

FIG. 5A is a partially cutaway perspective view of a main part showing another embodiment of the wiring structure between the power supply unit and the laser driving circuit board of the laser marking device of the present invention, and FIG. It is a perspective view showing the state where the flexible wiring board was loosely fitted to the axis of this gimbal part.

FIG. 6 is a perspective view of a main part showing a wiring structure between a power supply unit and a laser drive circuit board of a conventional laser marking device.

[Description of Signs] A Laser marking device 1 Leg 2 Power supply unit 3 Laser marking device main body 4 Laser drive circuit board 5 Flexible wiring board 6 Laser light 7 Light output unit 8 Optical system 9 Lower reference point emitting unit 10 Casing 11 Gimbal part 12 Semiconductor laser 13 Condensing lens 14 Light polarizing member 15 Cylindrical lens 16 Outer cylinder 17 Bearing 18 Inner cylinder 20 Connection part 21 Opening

Claims (4)

[Claims] 1. A light output section for outputting a laser beam by connecting a power supply section and a laser drive circuit board of a laser marking device body with a flexible wiring board, and radiating light output from the light output section to the outside. Marking device that has an optical system that emits light and a lower reference point radiating portion that outputs light vertically downwards. A laser marking device in which a main body is swingably arranged via a gimbal portion in a cylindrical casing. A wiring structure between the power supply section and the laser drive circuit board, wherein the connection sections at both ends of the flexible wiring board are connected to the power supply section and the laser drive circuit board in a twisted state so as to have a vertical surface. Wiring structure between the power supply section of the laser marking device and the laser drive circuit board. 2. The laser marking device according to claim 1, wherein the flexible wiring board is connected to the power supply section and the laser drive circuit board in a state where the power supply section and the laser drive circuit board are twisted in a spiral shape. Wiring structure between the power supply section of the container and the laser drive circuit board. 3. A connection between the power supply unit and the laser drive circuit board in a state where the flexible wiring board is twisted by making a U-turn so as to cover the gimbal section between the power supply unit and the laser drive circuit board. 2. A wiring structure between a power supply section of the laser marking device and the laser drive circuit board according to claim 1. 4. The flexible wiring board is connected to the power supply unit and the laser driving circuit board in a state where the flexible wiring board is loosely fitted to the center of the axis of the gimbal part by the power supply unit and the laser driving circuit board, and is U-turned and twisted. 2. A wiring structure between a power supply section of a laser marking device and a laser driving circuit board according to claim 1.