JP2000229257A - Automatic marking device of segment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device by which marking is automatically performed to the inner surface of a circular-arcuate surface of a segment 1 used for the construction of a tunnel or shaft. SOLUTION: A horizontal slider 29 is slid to a horizontal base 27 in advance, and a rotating arm 31 is rotated for the horizontal slider 29, and a marking unit 33 is slid in the longitudinal direction of the rotating arm to perform position adjustment. when the segment 1 is carried in by a carry-in device 25 in this state, a unit body is lowered from the marking unit 33 through an air cylinder 37 and it is reciprocated along a template 43 placed in a flying preventive box 41 while a coating material is sprayed by a spray device 86 to perform marking.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic marking apparatus for marking a segment used for constructing a tunnel or a shaft in a manufacturing factory or the like.

[0002]

2. Description of the Related Art Conventionally, there are concrete segments, steel segments, composite segments, and the like as segments used when tunnels and shafts are constructed. One example of the steel segment is shown in FIG.

[0003] That is, the steel segment 1
The main girder 3 and the joint plate 5 are welded in a frame shape, the skin plate 7 is welded to the outside, and the vertical rib 9 is attached to the inside. The main girder 3 and the joint plate 5 are provided with bolt holes 11 for connecting the steel segments 1 with bolts. Also, 13 in the figure is a reinforcing rib, and 15 is a hanging metal fitting.

[0004] Marking is performed on the inner surface of the arc surface of the skin plate 7 such as a manufacturing factory. This marking includes a company mark, a pass mark, a type by type, an association mark, and others. Conventionally, in order to perform marking, a template having these characters and symbols formed thereon is used, and the work is manually performed using a spray device or the like that sprays paint on the template.

[0005]

However, the work performed manually requires a worker to suck the paint to be sprayed and to work while leaning down, and thus has a problem in health and physical condition. It is also conceivable that the marking may be performed automatically without manual operation. However, since the segment has an arc surface, it has been considered that it is difficult to adjust the marking position depending on the size and type of the segment.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and provides an automatic marking device that can automatically perform segment marking regardless of the existence of an arc surface without manual operation. With the goal.

[0007]

In order to solve the above-mentioned problems, a first aspect of the present invention relates to a segment having an arcuate surface that is concave upwardly, and the segment direction above the segment and the generatrix of the arcuate surface. A rotating arm that rotates around a parallel axis to adjust the angle, a marking unit provided on the rotating arm, and a slider that constitutes the marking unit and slides in the longitudinal direction through an air cylinder. A unit body that moves up and down, a template that is detachably attached below the unit body to form a mark mold, and that is attached above the unit body and that reciprocates by spraying paint along the template. And a spraying device.

According to a second aspect of the present invention, there is provided a carry-in device for carrying a segment in a state in which the arc surface is concave upward, and a horizontal base arranged horizontally above the carried segment in a substantially circumferential direction of the arc surface. And a horizontal slider whose position is adjusted by sliding along the horizontal base; and a horizontal slider that is arranged horizontally orthogonal to the horizontal base and rotates about a longitudinal axis with respect to the horizontal slider to adjust the angle. A pivot arm,
A marking unit whose position is adjusted by sliding in a longitudinal direction of the rotating arm; a unit body which constitutes the marking unit and which moves up and down via an air cylinder with respect to a slider which slides in the longitudinal direction; and a unit body Can be placed at the bottom of the unit to form a mark mold, can be placed at the bottom, and a splash-prevention box to prevent paint from scattering, and can be installed above the unit body, spray paint along the template and reciprocate And an automatic marking device for segments.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An example of an automatic segment marking apparatus according to one embodiment of the present invention will be described with reference to FIGS.

(Overall Schematic) As shown in FIGS. 1 and 2 which are overall views, a loading device 2 for loading a segment 1 is placed on a floor surface 23 on which the automatic marking device 21 is provided.
A chain conveyor or a roller conveyor as 5 is installed. A horizontal base 27 is horizontally disposed above the loading device 25 so as to straddle the loading device 25. A horizontal slider 29 is slidably provided along the horizontal base 27. A turning arm 31 is provided for the horizontal slider 29. The turning arm 31 is arranged horizontally perpendicular to the horizontal base 27, and turns around its own longitudinal direction (horizontal direction in FIGS. 1 and 6) with respect to the horizontal slider 29 to adjust the turning angle. It is configured to be. A marking unit 33 is provided so as to be slidable in the longitudinal direction of the rotating arm 31.

The marking unit 33 is provided such that a unit body 39 can be moved up and down via an air cylinder 37 with respect to a slider 35 (FIG. 4) that slides on the rotating arm 31. A scattering prevention box 41 is provided below the unit main body 39. The bottom of the scattering prevention box 41 is open, and a template 43 is arranged. This template 4
Reference numeral 3 denotes a mark formed for marking. A spray device 45 is mounted above the unit main body 39. The spray device 45 reciprocates along the template 43 to spray paint.

Hereinafter, each part will be described in detail. (Loading device) As shown in FIG. 1 and FIG. 2, the chain conveyor roller conveyor as the loading device 25
It is carried in a state where the arc surface is concave upward.
The segment 1 is loaded in a state where the direction of the main girder 3, that is, the substantially circumferential direction is orthogonal to the loading direction (left-right direction in FIG. 1), and the direction of the joint plate 5, that is, the generatrix direction of the arc surface is parallel to the loading direction. Put on the device.

(Horizontal Base) The horizontal base 27 is fixed on a base frame 49 by left and right pillars 47 and provided so as to straddle the end of the loading device 25. You. The base frame 49 is provided with a work floor 51 and stairs 53 (FIG. 2).

(Horizontal Slider) As shown in FIG. 6, a guide 55 and a cam follower 57 are provided on the front surface of the horizontal base 27.
And supports the horizontal slider 29 so as to be slidable in the horizontal direction. The sliding position is obtained by rotating the lock lever 59 provided on the horizontal slider 29,
It can be locked.

(Rotating Arm) A disk 63 is attached to the base of the rotating arm 31 at right angles via a reinforcing rib 61. The disk 63 has slits 65 at four locations along the circumferential direction. A bolt 67 is attached to the horizontal slider 29 through each slit 65. Each bolt 6
A lock lever 69 is attached to at least one of the seven, and by rotating the lock lever 69, the bolt head 71 presses the disk 63 against the horizontal slider 29 to fix the rotation angle. Has become. The disk 63 is provided with an oval gripper 73 so that a force for manually rotating the disk 63 and the rotating arm 31 can be easily applied.

With respect to the horizontal base 27, a horizontal slider 29
The surface of the disk 63 is parallel to the surface of the disk 63, and the rotating arm 31 is provided at a right angle to the surface of the disk 63, so that the rotating arm 31 is arranged orthogonally and horizontally to the horizontal base 27. That is, they are arranged in the generatrix direction of the arc surface of the segment 1.

(Slider Constituting Marking Unit) A slider 35 is provided for the marking unit 33 to slide in the longitudinal direction of the rotating arm 31.
The slider 35 is slidable by a guide 75 and a cam follower 77 provided on the front surface of the rotating arm 31. An air cylinder 37 is disposed in the center of the slider 35, and guide bars 79 are disposed on the left and right, so that the unit body 39 can be moved up and down. The slide position is fixed by rotating the lock lever 81.

(Unit body) The unit body 39 includes:
The scatter prevention box 41 in which the template 43 is disposed, the spray device 45 for spraying paint, and the detection rod device 83 for detecting the vertical position with respect to the segment 1 are provided.

(Template and Shatterproof Box) The template 43 is formed by stamping a mark, ie, a company mark, a pass mark, a type by type, an association emblem, and other characters and symbols. The size of the opening 85 provided at the bottom of the shatterproof box 41 is slightly smaller than that of the template 43.
When the mark 3 is placed at the bottom of the shatterproof box 41, the mark portion is exposed downward, that is, toward the segment 1.

(Spray device) In the spray device 45, a spray nozzle device 86 reciprocates along the template 43, that is, the scattering prevention box 41, in the left-right direction of FIG. 1, FIG. 3, or FIG. In this reciprocating drive device 87, a driving sprocket 93 is attached to a rotating shaft 91 of a geared motor 89 with a brake, and the other end of the roller chain 95 wound around the driving sprocket 93
Wound around. The position of the rotation shaft 99 of the driven sprocket 97 is changed by the tension mechanism 101, and a constant tension can be applied to the roller chain 95.
In the middle of the roller chain 95, a spray nozzle device 86
Is fixed. The moving speed of the geared motor 89 is variable by inverter control.

In the spray nozzle device 86, two pairs of rollers 103 provided vertically are movable in the left-right direction with a guide rail 105 provided in the unit body 39 in the left-right direction sandwiched from above and below. Spray nozzle device 8
6 has two upper and lower nozzles 107, and these two nozzles 107 are attached to a rotating plate 109 and rotate, and are used alternatively. With two nozzles 107, for example, two types of colors can be used properly. In order to supply paint to these nozzles 107, a paint feed tank (not shown) is connected via a supply hose 109. This paint pressurizing tank is placed on a base frame 49, for example.

(Detection Rod Device) In the detection rod device 83, as shown in FIG. 8, a dog 113 and a coil spring 115 are disposed above a detection rod 111 provided in a vertical direction.
The upper end of the detection rod 111 is held by a holder 117. When the tip of the detection rod 111 contacts the segment 1, the detection rod 111 moves upward against the urging force of the coil spring 115. Due to this movement, the dog 113 comes into contact with the limit switch 119, and it is detected that the unit main body 39 has descended to a predetermined position with respect to the segment 1.

(Operation of Embodiment) In accordance with the size and type of the segment 1 or the position where the marking is performed,
The horizontal slider 29 slides with respect to the horizontal base 27 to adjust the position of the segment 1 in the substantially circumferential direction (the direction of the main girder 3). Further, the rotation arm 31 is rotated to adjust the angle of the segment 1 along the arc. When the marking unit 33 moves in the longitudinal direction of the rotating arm 31, the generatrix direction of the segment 1 (the direction of the joint plate 5).
Is adjusted.

After the position is adjusted in this manner, when the segment 1 is loaded on the loading device 25 with the arcuate surface concave upward, the unit cylinder 39 is moved by the air cylinder 37 of the marking unit 33. Descends,
When the detection rod device 83 descends to a predetermined position, it stops. Then, the spray nozzle device 86 of the spray device 45 reciprocates at a predetermined speed to spray the paint. The paint is sprayed onto the segment 1 through a mold of a template 43 arranged at the bottom of the shatterproof box 41 to perform marking.

(Effects of the Embodiment) According to the above embodiment, the marking work can be performed automatically without manual operation, and the back pain of the worker can be eliminated. In addition, by the rotation of the rotating arm 31, the position of the marking can be easily adjusted even with respect to the arc surface of the segment 1. Further, by disposing the template 43 at the bottom of the scattering prevention box 41, it is possible to prevent the paint from scattering.

As described above, according to the first or second aspect of the present invention, the angle is adjusted by rotating the rotating arm in advance with respect to the location on the arc surface of the segment where marking is to be performed. The slider slides relative to the rotating arm to adjust the position of the arc surface in the generatrix direction. When the segment is carried in, the unit body descends from the slider via the air cylinder, and the spray device of the unit body Performs marking by spraying paint along the template. Thereby, the marking operation can be performed automatically without manual operation. Further, by the rotation of the rotation arm, the position of the marking can be easily adjusted even with respect to the arc surface of the segment. Further, according to the second invention, the horizontal slider slides relative to the horizontal base to adjust the position of the segment in a substantially circumferential direction, and the rotation arm of the rotating arm disposed orthogonal to the horizontal slider is adjusted. When the marking unit slides in the longitudinal direction, the position of the arc surface of the segment in the generatrix direction is adjusted. Thereby, marking can be performed more easily at an arbitrary position on the inner surface of the arc surface of the segment. Further, by disposing the template at the bottom of the scattering prevention box, the scattering of the paint can be prevented.

[Brief description of the drawings]

FIG. 1 is an overall front view showing an automatic segment marking apparatus according to an embodiment of the present invention.

FIG. 2 is a side view of FIG.

FIG. 3 is an enlarged view of a part III in FIG. 1;

FIG. 4 is a side view as viewed from a direction VI in FIG. 3;

FIG. 5 is a rear view showing a main part of FIG. 3 from a V direction.

FIG. 6 is an enlarged view of a portion VI in FIG. 1;

FIG. 7 is an enlarged view of a portion VII in FIG. 2;

FIG. 8 is an enlarged view of the detection rod device of FIG.

FIG. 9 is a perspective view of a segment to be marked by the apparatus of the embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Steel segment 3 Main girder 5 Joint plate 7 Skin plate 9 Vertical rib 11 Bolt hole 21 Automatic marking device 23 Floor surface 25 Loading device 27 Horizontal base 29 Horizontal slider 31 Rotating arm 33 Marking unit 35 Slider 37 Air cylinder 39 Unit main body 41 Shatterproof box 43 Template 45 Spray device 49 Base frame 55 Guide 57 Cam follower 59 Lock lever 63 Disk 65 Slit 67 Bolt 69 Lock lever 71 Bolt head 73 Gripper 75 Guide 77 Cam follower 79 Guide bar 81 Lock lever 83 Detection rod device 85 Opening 86 Spray nozzle device 87 Reciprocating drive device 89 Geared motor 91 Rotary shaft 93 Drive sprocket 95 Roller chain 97 Follower sprocket 101 Tension Cylinder mechanism 103 Roller 105 Guide rail 107 Nozzle 109 Rotating plate 111 Detection rod 113 Dog 115 Coil spring

Claims (2)

[Claims] 1. A rotating arm that is rotated above an axis of a segment having an arcuate surface concave upward and about an axis parallel to a generatrix direction of the arcuate surface to adjust an angle. A marking unit provided on the rotating arm, a unit body that constitutes the marking unit and moves up and down via an air cylinder with respect to the slider that slides in the longitudinal direction, and is detachably attached below the unit body; An automatic segment marking apparatus, comprising: a template for forming a mold of a mark; and a spray device attached above the unit main body and spraying paint along the template to reciprocate. 2. A loading device for loading a segment with its arcuate surface concave upward, a horizontal base disposed substantially in the circumferential direction of the arc surface above the loaded segment, and a horizontal base. A horizontal slider whose position is adjusted by sliding along the base; and a rotating arm which is arranged horizontally perpendicular to the horizontal base and rotates around a longitudinal axis with respect to the horizontal slider to adjust the angle. A marking unit whose position is adjusted by sliding in a longitudinal direction of the rotating arm; a unit body which constitutes the marking unit and moves up and down via an air cylinder with respect to a slider which slides in the longitudinal direction; A stencil that is attached below the main unit and forms a mark mold can be placed at the bottom, and a splash-prevention box that prevents paint from scattering, and is mounted above the unit main unit. And a spray device for spraying paint along a template and reciprocating.