JPH07308873A - Automatic marking device for circumferential surface of pipe member - Google Patents

Abstract

PURPOSE:To automatically carry out marking on the outer circumference of a metallic pipe of a relatively small diameter. CONSTITUTION:A straight pipe member placed on a pipe-member setting support 3 that has been fitted to a frame 1 is dropped between a guide member 5 that has both a pipe guide surface and a vertical orbital surface and that is movable in the horizontal direction, and a holding member 6 that has been arranged in the position being opposite to the orbital surface of the guide member 5 so as to be vertically movable; and marking is carried out while the straight pipe member is rotatingly brought into contact with a marker 8 in such a condition that it has been held between the holding member 6 and the orbital surface, and the straight pipe member after marking is transported to a material receiver 14 through a discharge chute 12. Thus, plenty of various straight-pipe members can be marked in a short time, and marking can be carried out in a given position without dispersion in the marking position.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention generally has a pipe diameter of 30 mm.
For metal pipes with a relatively small diameter, such as metal fittings such as clamps, brackets, rubber hoses, etc., or the internal fluid flow direction and usage type, etc. TECHNICAL FIELD The present invention relates to a marking device for visually marking.

[0002]

2. Description of the Related Art Various types of a large amount of pipe products installed in automobiles and the like are marked with paints or inks at predetermined places in order to clearly indicate the positions of insertion of clamps, brackets and other metal fittings or rubber hoses. However, the work has been done manually because there is no automatic marking device. For this reason, marking work on various types and a large amount of pipe products, which are arranged especially in automobiles, is inefficient and inefficient, and in addition, the positional relationship of the markings varies, resulting in metal fittings or rubber hoses. Causing problems such as insertion problems,
The improvement was desired.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional circumstances, and the operation of the apparatus itself can be simplified and the operation can be simplified. The present invention intends to propose an automatic marking device which can significantly improve the property and can be attached to a fixed position by eliminating the variation in the marking positional relationship.

[0004]

According to the present invention, the process from the supply of the pipe material to the marking and the sending is automated by one device, and the gist thereof is located on the upper side of the gantry.
A set support body on which a plurality of straight pipe members having the same diameter and a fixed length are placed in parallel, a guide member whose upper end is a guide surface, and which is provided so as to be horizontally movable on the mount, and this guide member. In order to roll the straight pipe member delivered to the vertical raceway surface connected to the guide surface of the rolling surface with the raceway surface, an oscillating vertical cylinder constantly attracted to the guide member side by an elastic body is used. A straight pipe member that can change the distance between the holding body and the raceway surface by a holding body that can move up and down, a cam follower that is integrally attached to the holding body, and a cam plate that is disposed on the side surface of the guide member. A variable gripping distance mechanism, a swingable marker that is arranged on the guide member side so as to project in a direction perpendicular to the straight pipe member, and is elastically supported so as to be swingable in the vertical direction, and below the left and right end portions of the frame. Delivery of straight pipe member after marking, which is inclined to the side Chute, an automatic marking device for tubular members circumferential surface composed of a receiving stopper mechanism and materials.

[0005]

Function: The straight pipe member to be marked is first placed on the set support body with the delivery stopper mechanism, which is arranged on the upper side in the vicinity of the left and right end portions of the pedestal, in a slanting manner in parallel. It rolls on the inclined guide surface of the guide member arranged on the tip side and falls between the vertical raceway surface of the guide member and the holding body located at the upper limit. The space between the raceway surface and the holding body is set by the cam plate and the cam follower so that the straight pipe member can fall.

The straight pipe member dropped between the raceway surface and the holder is
The cam follower is disengaged from the stepped portion of the cam plate by the lowering of the holding body, and is clamped between the raceway surface and the holding body by the action of the elastic body that draws the holding body, and the holding body further rolls down on the raceway surface. While being rotated, it abuts against a marker that protrudes from the raceway surface and can be swung, and while moving downward by the circumferential length of the straight pipe member, marking is performed over the entire circumference of the pipe.

When the holder moves further downward and the straight pipe member comes off the tip of the marker, the marker returns to its original position, and at the same time, the marked straight pipe member is received by the delivery chute, and the holder is held. When the straight tube member is sunk from the chute, the straight tube member rolls out on the upper surface of the chute by its own weight and is sent out, and is temporarily stopped by the stopper mechanism arranged at the end of the chute and held until the ink or paint by the marker dries (tact time). Air blow to shorten), and after drying, it is placed on the material receiver.

According to the apparatus of the present invention, since straight pipe members are automatically supplied one by one to perform marking, the workability is remarkably improved and marking is performed in a short time even if there are many types and a large number of types. In addition, the marking can be attached at a fixed position without variation in the positional relationship.

[0009]

1 is a partially cutaway front view showing an example of the structure of an automatic marking device for a peripheral surface of a pipe member according to the present invention, FIG.
Is a partially cutaway side view showing an enlarged main part of the same device, FIG. 3 is an enlarged perspective view of a guide member part of the same device, FIG. 4 is a diagram for explaining a marking situation, 1 is a pedestal, and 2 is Stanchions, 3
Is a set support body, 4 is a delivery stopper mechanism, 5 is a guide member, 6 is a holding body, 7 is a vertical cylinder, 8 is a marker,
9 is a cam plate, 10 is a cam follower, 11 is a horizontal rod, 12 is a delivery chute, 13 is a stopper mechanism, 14
Is a material receiver, and P is a straight pipe member.

That is, according to the apparatus of the present invention, the set support body 3 on which a plurality of straight pipe members P having the same diameter and the fixed length are mounted in parallel on the upper side near the left and right ends of the gantry 1 is projected on the gantry. A delivery stopper mechanism 4 is provided which is installed on the installed column 2 so as to incline forward, and which opens and closes in conjunction with an operation source 4-1 such as a hydraulic pressure or an air cylinder suspended at the tip of the support body. It has a structure in which a plurality of straight pipe members P having the same diameter and a fixed length are placed in parallel.

The guide member 5 is located between the set support bodies 3, and the upper end of the guide member 5 is formed as a guide surface 5-1 that is similarly inclined and continues to the inclined surface on the set support body 3 side. It has a vertical track surface 5-2 continuous with -1, and is installed on the gantry 1 so as to be horizontally movable left and right.

The holder 6 is attached to the tip of the rod of the vertical cylinder 7 so as to face the vertical raceway surface 5-2 of the guide member 5, and the vertical cylinder 7 is mounted on the bracket below the guide member 5. The vertical cylinder 5-3 is installed so as to be swingable in the front-rear direction about the support shaft 7-1 as a fulcrum, and is pulled to the guide member side by a tension spring 7-2 hung between the guide member 5 and the vertical cylinder. One end is fixed to the rod tip of 7,
The other end is guided through a cam follower 10 that comes into contact with the cam plate 9 to a horizontal rod 11 slidably inserted in a gap between the guide plate 5 and a cam plate 9 that is vertically disposed on the side surface of the guide member 5. The space between the vertical track surface 5-2 of the member 5 and the holding body 6 is held. That is, when the holding body 6 is located at the upper limit, the cam follower 10 abuts the wide portion 9-1 of the cam plate 9 so that the space between the vertical raceway surface 5-2 and the holding body 6 is a straight pipe. The member P opens so that it can be fitted therein, and the contraction of the vertical cylinder 7 causes the cam follower 10 to come off the stepped portion 9-2 having a height equal to or larger than the radius of the straight pipe member P of the cam plate 9 and the narrow portion 9-
3, the vertical spring 7-2 pulls the vertical cylinder 7 toward the guide member 5 side to narrow the space between the vertical raceway surface 5-2 and the holding body 6 and hold the straight pipe member P therebetween. While it is a mechanism that descends. In addition, as the holding body 6,
In order to surely roll the surface of the straight pipe member P without scratches or the like, a rubber pad or the like is suitable.

The marker 8 is removably attached to a bracket 8-2 provided on the support plate 8-1, and its fixing means is fixed horizontally on the side surface of the guide member 5 opposite to the cam plate mounting surface. The rear end of the support plate 8-1 is attached to the plate 8-3 by a pivot pin 8-4 so as to be vertically swingable, and a stopper 8 provided integrally with the support plate 8-1.
It is elastically supported substantially horizontally by a spring 8-6 hung between -5 and the guide member 5. The marker 8 is attached at a predetermined height position so that the mark core portion 8-7 at the tip thereof projects into the space between the vertical track surface 5-2 of the guide member 5 and the holding body 6. It should be noted that it is preferable to use a marker with a built-in ball in order to stir the liquid inside.

The delivery chute 12 is arranged so as to incline toward the left and right ends of the gantry 1, and the straight pipe member P is mounted on the chute until the ink or paint by the marker 8 dries at the tip of the chute. The stopper mechanism 13 for temporarily stopping is provided integrally with the chute. This stopper mechanism comprises an operation source 13-1 such as hydraulic pressure or an air cylinder and a stopper pin 13-2. The material receiver 14 for receiving the marked straight pipe member P is also attached to the pedestal 1.

Although not shown in the drawings, the gantry 1 is provided with a compressed air jet nozzle used to immediately dry paint or ink after marking and a straight pipe before marking in order to shorten the tact time. To align the end positions of the members P and to widen the marking width, a positioning mechanism or the like is provided for moving the straight pipe member P in the axial direction by the marking width after the first marking.

In the above apparatus, the straight pipe members P previously placed in parallel on the set support body 3 are sequentially placed on the guide member 5 one by one by the delivery stopper mechanism 4 so that the guide members 5 of the guide members 5 can be connected. The guide surface 5-1 is rolled, and is held at the upper limit of the vertical cylinder 7 and is opened at an interval where the straight pipe member P can be fitted by the contact between the wide portion 9-1 of the cam plate 9 and the cam follower 10. It falls between the body 6 and the vertical raceway surface 5-2. At this time, the straight pipe member P is attached to the cam follower 10
Is mounted on the horizontal rod 11 to which is attached (see FIGS. 2 and 3).

When the cam follower 10 is disengaged from the step portion 9-2 of the cam plate 9 and reaches the narrow portion 9-3 due to the contraction of the vertical cylinder 7, the action of the tension spring 7-2 causes the vertical cylinder 7 to move toward the guide member 5 side. Vertical orbital surface 5-
The distance between 2 and the holding body 6 is narrowed, the holding body 6 comes into close contact with the surface of the straight pipe member P, and is sandwiched between the raceway surface 5-2 and the holding body 6 (see FIG. 4A). When the holding body 6 descends due to further contraction of the vertical cylinder 7, the sandwiched straight pipe member P rotates about the raceway surface 5-2 of the guide member 5 while rotating about its own axis to reach half the descending speed of the holding body 6. It goes down at a speed. At this time, the straight pipe member P rolls downward at least by the circumferential length of the marker 8 in a state of being in contact with the mark core portion 8-7 at the tip of the marker 8, and the marker 8 follows the rolling and the spring 8 moves.
By swinging downward around the pivot pin 8-4 as a fulcrum against -6, marking is performed over the entire circumference of the pipe member (see FIG. 4 (B)).

When the marked straight pipe member P is disengaged from the tip of the marker 8 by the lowering of the holder 6, the marker is actuated by the action of the spring 8-5 as shown by the chain double-dashed line in FIG. 4 (B). At the same time as returning to the
2, the holder 6 is further lowered and the delivery chute 1 is received.
When the straight pipe member P is sunk from the upper surface of 2, the straight pipe member P rolls on the delivery chute 12 by its own weight, and the stopper mechanism 13 at the tip of the chute.
At that time, it is once stopped on the chute, and is held at that position until the attached mark is dried. When the stopper is released after drying, the straight pipe member P receives the material receiver 1 from the chute end.
It falls to 4.

By repeating the above operation continuously, a plurality of straight pipe members P placed in parallel on the set support 3 are sequentially marked. Needless to say, the delivery stopper mechanism, the holder, the stopper mechanism, etc. are all automatically operated by an automatic control system such as a sequencer.

[0020]

As described above, the device of the present invention has the following effects. (1) Since the straight pipe members are automatically supplied one by one and marking is performed, the workability can be markedly improved and marking can be performed in a short time even if there are many kinds. (2) Marking is performed by rolling the straight pipe member in a fixed position while contacting with the marker, so that the entire circumference of the straight pipe member can be reliably marked, and the positional relationship of the marks can be eliminated to ensure a fixed position. Can be marked. (3) Since the marker swings following the rolling of the straight pipe member, marking can always be performed with an appropriate contact pressure, and the mark core portion at the tip of the marker is extremely scarred. Further, when the ball-incorporated marker is used, the ball agitates the liquid inside, so that it is possible to prevent color unevenness or the like during marking. (4) The variable straight tube member clamping distance mechanism using the cam plate and the cam follower allows the straight tube member to be reliably supplied between the guide member and the holding body, and uses the elastic force to directly fix the straight tube member with a constant clamping force. By adopting the method of rolling the pipe members in contact with each other, the straight pipe member can be surely rolled regardless of the difference in pipe diameter without causing slippage or the like, and the marking stability is high. (5) Since the structure of the device itself is relatively simple and inexpensive equipment and members can be used, the cost is not high.

[Brief description of drawings]

FIG. 1 is a partially cutaway front view showing a device configuration example of an automatic marking device for a peripheral surface of a pipe member according to the present invention.

FIG. 2 is a partially cutaway side view showing an enlarged main part of the same apparatus.

FIG. 3 is an enlarged perspective view of a guide member portion of the same device.

FIG. 4 is a diagram showing a marking situation of the present invention, (A)
FIG. 6B is a diagram showing before marking, and FIG. 7B is a diagram showing during marking and after marking.

[Explanation of symbols]

 1 cradle 2 support 3 set support 4 delivery stopper mechanism 5 guide member 6 holder 7 vertical cylinder 8 marker 9 cam plate 10 cam follower 11 horizontal rod 12 delivery chute 13 stopper mechanism 14 material receiving P straight pipe member

Claims (1)

[Claims] 1. A set support body, which is located on the upper side of a pedestal, on which a plurality of straight pipe members having the same diameter and a fixed length can be placed, and an upper end of which is a guide surface and which can be moved horizontally on the pedestal. An elastic body is always attracted to the guide member side so that the provided guide member and the straight pipe member delivered to the vertical raceway surface connected to the guide surface of the guide member can be brought into rolling contact with the raceway surface. Holding body that can be moved up and down by an oscillating vertical cylinder, a cam follower that is integrally attached to the holding body, and a cam plate that is arranged on the side surface of the guide member to form the holding body and the raceway surface. A variable straight tube member holding interval mechanism that makes variable the interval, and a swingable marker that is arranged on the guide member side so as to project in a direction perpendicular to the straight tube member and that is elastically supported so as to be swingable in the vertical direction. , A mark arranged below the left and right ends of the mount. An automatic marking device for a peripheral surface of a pipe member, comprising a delivery chute for a straight pipe member after king, a stopper mechanism and a material receiver.