JPH03294111A - Die set removing device for inclined type travelling cutter for square pipe - Google Patents

Abstract

PURPOSE:To hang a wire in a straight position in hanging the wire of a lift by providing tracks separately on an extension in the traveling direction of a traveling track of a die set device for cutting and by making a frame on which these tracks are mounted changeable in inclination from a predetermined inclined angle to the horizontal angle of the traveling cutter. CONSTITUTION:After a cutting die set device A is removed from the driving rack of a traveling cutter and moved to the position of the end part of a base, it is made slide on tracks 2L and 2R arranged on the same plane with a traveling track and moved. Next, the cutting die set device A in the inclined position by 45 degrees is gradually moved to the horizontal state by rotating an operation handle 3. After the die set device A for cutting is made horizontal, it is suspended by a wire.

Description

DETAILED DESCRIPTION OF THE INVENTION (A) Industrial Application Field The present invention is an inclined traveling cutting method in which a cutting die set device A is run along a continuous pipe on a rail to cut the pipe in a plant manufacturing square pipes. For quick, easy and safe work when removing the cutting tweezer set from the rail for changing the outside diameter size of the cut pipe, or when removing it from the rail for repair, repair, inspection, or adjustment and reinstalling it on the machine. It is configured so that it can be done.

(B) Prior art Although tilt-type traveling cutting machines for square pipes have been known for a long time, the cutting die set device can be attached and detached by hanging a lifting wire around the cutting die set device and building the plant. This was done using equipment such as overhead cranes that were grounded indoors.

(c) Problems to be solved by the invention However, the cutting forcepset device is tilted, and the center of gravity of the cutting forcepset device changes each time the setup is changed due to a change in pipe size. It was necessary to lift it while adjusting the conditions.

In addition, inserting the rail insertion part of the suspended cutting die set device into the inclined rail is a difficult task as it requires shifting the wire hanging position and delicately adjusting the angle. It was.

Furthermore, the operation itself of lifting the cutting device from a horizontal position on the ground to an inclined position was an extremely difficult task.

The present invention solves these problems of the prior art.

(d) Means for Solving the Problems The problems to be solved by the present invention are as described above. Next, the means for solving the problems will be explained.

In the inclined type traveling cutting machine for square pipes, a rail 2L is installed separately on the extension line in the traveling direction of the traveling rail of the cutting die set device A.
- 2R is provided, and the pedestal on which the rail is placed can change the inclination of the traveling cutting machine from a predetermined inclination angle to a horizontal angle.

(E) Embodiment The problems to be solved by the present invention and the means for solving them are as described above.Next, the structure of the embodiment shown in the attached drawings will be explained.

Fig. 1 is a plan view of the die set attachment/detachment device of the inclined traveling cutting machine for rectangular pipes of the present invention, Fig. 2 is a front view, Fig. 3 is a side view, and Fig. 4 is a diagram of the pedestal L and the angle changing mechanism. Front view,
Fig. 5 is a side view of the pedestal 1 and the angle changing mechanism, and Fig. 6 is a side view of the cutting tool set device A taken out from the rails of the traveling cutting machine to the rails 2L and 2R of the angle changing mechanism for taking out. , FIG. 7 is a side view of the state in which the angle changing mechanism is used to bring the cutting blade B into a horizontal state, and FIG. 8 is a side view of the state in which the cutting blade B is brought close to the square vibrator P from the direction of inclination.

The overall structure of the inclined traveling cutting machine for square pipes will be explained with reference to FIGS. 1, 2, and 3.

As shown in Fig. 8, the traveling cutting machine is arranged horizontally and has a mechanism that cuts the square vibrator sent out from the continuous pipe manufacturing device from the upper right corner with the cutting blade B. , the cutting blade B rushes into the square pipe P from an inclined direction of 45 degrees.

Before the cutting blade B enters, the cutting blade passes through the square vibrator P from the side, makes a slight incision, and then the cutting blade B
The object is thrust into the square vibrator P at right angles. This makes it possible to eliminate dimples that form in the notch.

When cutting the square vibrator P in this way, it is best to insert the cutting blade B from the corner to eliminate dimples.On the other hand, in continuous pipe manufacturing equipment, the square pipe P is kept in a horizontal state. Since the cutting machine is continuously manufactured and sent out, it is necessary to have the traveling cutting machine tilted at an angle of 45 degrees.

The rail supporting the cutting die set device A is arranged at a 45 degree inclination on the extension of the positions of the rails 2L and 2R of the angle changing mechanism, and the cutting die set device A reciprocates on the rail. It moves.

The drive mechanism for reciprocating the cutting die set device A is
A drive rack 21 is provided which drives a pinion drive mechanism 27 by a travel drive motor 26 and meshes with the pinion of the pinion drive mechanism 27. A cutting die set device A is connected to the right end of the drive rack 21. There is.

In the past, the cutting die set device A was
- Accelerate the speed to the same speed as the feeding speed of the square vibrator P, and at that moment, without cutting the square vibrator P, clamp it with the clamping device of the die setting device A, and then make a cut with the cutting blade. , then insert the cutting blade B and completely insert the square vibe P.
The shearing process is completed.

After cutting is completed, the travel drive motor 26 is rotated in the reverse direction,
The drive rack 21 is returned and the cutting die set device A is returned.

In order to operate the cutting blade and cutting blade B of the cutting die set device A, a crank rail mechanism 23 is provided at the top of the inclined traveling cutting machine for square pipes, and the crank rail mechanism 23 is rotated up and down. The crank rail is fitted into the rail on the upper surface of the cutting die set device 1WA.

The crank rail mechanism 23 is driven by a crank drive motor 25 via a reduction gear mechanism 24.

A safety cover 22 covers a portion of the crank rail mechanism 23 in front of the passing position of the cutting die set device A.

As described above, the cutting die set device A has the drive rack 21
The cutting blade and the cutting blade B of the cutting die set device 1A are moved up and down by the crank rail mechanism 23.

The 45-degree inclined cutting device A is configured to cut a rectangular pipe P placed horizontally as shown in FIG. 8 by inserting a cutting blade B into the square pipe P from the upper right corner.

Next, the angle changing mechanism will be explained with reference to FIGS. 4 and 5.

From the base 30 of the traveling cutting machine, the rotation pivot shaft 4 of the pedestal 1,
A pantograph support stand 18 is provided protrudingly. A pedestal l is supported in a state of being pivotally supported on the rotation pivot shaft 4,
On the pedestal 1, rails 2L and 2R are arranged on the same plane as the rails of the traveling cutting machine.

A space a is provided between the rails 2L and 2R and the base 30, and since an internuclear distance ma is provided, the angle of the pedestal 1 changes when the operating handle 3 is rotated.

In FIG. 5, a threaded shaft 5 is integrated into the operating handle 3, and a female threaded body 19 is threaded into the threaded portion of the threaded shaft 5. As shown in FIG.

A pivot shaft 31 is provided on the female screw body 19, and the pantograph rod 17 and the pantograph rod 16 are pivotally supported on the pivot shaft 31.

The tips of the pantograph rods 16 and 17 are pivotally supported by the other pantograph rods 14 and 15 at the pivot shafts 6 and 11. The tips of the pantograph rods 14 and 15 are pivotally supported by a pivot shaft 13 at the tip of the threaded shaft 5.

A pivot shaft 6 that connects the pantograph rods F. It is pivotally supported.

As described above, by configuring the pantograph mechanism with the operating handle 3 and the threaded shaft 5, when the operating handle 3 is rotated, the bracket 7 of the pedestal 1 moves up and down as shown in FIG. The mounted frame 1 is rotated between a 45 degree position and a horizontal position.

6 and 7, the effects of operating the operating handle 3 will be explained.

The cutting die set device A is mounted on the drive rack 2 of the traveling cutting machine.
1 and moved to the end position of the base 30, and then slid onto the rails 2L and 2R arranged on the same plane as the rail.

Next, by rotating the operating handle 3, the cutting die set device A, which was tilted at 45 degrees as shown in FIG. 6, gradually moves to a horizontal state as shown in FIG.

After the cutting die xWA is leveled in this way, it can be easily hung using a wire.

(F) Effects of the Invention Since the present invention is constructed as described above, it has the following effects.

First, the cutting die set device A of the inclined traveling cutting machine for square tubes is in an inclined state, so when it is removed from the main body of the traveling cutting machine for setup change, it is necessary to use the lift wire. However, the process was extremely difficult.

On the other hand, the cutting die set device A taken out to the top of the rails 2L and 2R in an inclined state is converted to a horizontal position by rotating the pedestal l, so that when hanging the lift wire afterwards, it will not be straight. You can hang the wire depending on your posture.

Second, if the wire is hung with the cutting die set device A tilted, if the parts of the pipe clamping part are changed due to a difference in the outer diameter of the pipe, the weight of that part will be different. , the center of gravity of the cutting die set device changes, and the state of suspension by the wire changes, but if the cutting die set device A is placed horizontally and then the wire is hung, the vibrator Even if the weight of the clamped part changes, the center of gravity does not change, so when transporting or transporting the wire after hanging it, the cutting die set device A
There is no longer any fear that the roof will tilt.

Thirdly, inserting the rail insertion part of a suspended cutting die set device into the inclined rail is difficult as it requires shifting the wire hanging position and delicately adjusting the angle. It was work.

Furthermore, the operation itself of lifting a cutting die set device that was placed horizontally on the ground into an inclined position was an extremely difficult task.

The present invention has been able to solve the problems of the prior art.

[Brief explanation of the drawing]

Fig. 1 is a plan view of the die set attachment/detachment device of the inclined traveling cutting machine for rectangular pipes of the present invention, Fig. 2 is a front view, Fig. 3 is a side view, and Fig. 4 is a view of the pedestal 1 and the angle changing mechanism. Front view,
Figure 5 is the same (a side view of the pedestal 1 and the angle changing mechanism; Figure 6 is a side view of the cutting die set device A taken out from the rails of the traveling cutting machine to the rails 2L and 2R of the angle changing mechanism for taking out). Figures 7 and 7 are the same (a side view with the angle changing mechanism in a horizontal state, and Figure 8 is a side view with the cutting blade B brought close to the square pipe P from the inclined direction. A. . 1・ ・ 2L. 3 ・ ・ 4 ・ ・ 5 ・ ・ Cutting die set device/mount 2R...rail...operation handle...rotation pivot shaft...threaded shaft

Claims (1)

[Claims] In the inclined type traveling cutting machine for square pipes, a rail 2L is installed separately on the extension line in the traveling direction of the traveling rail of the cutting die set device A.
・Die set attachment/detachment device for an inclined type traveling cutting machine for square pipes, characterized in that 2R is provided and the pedestal 1 on which the rails 2L and 2R are mounted can change the inclination from a predetermined inclination angle of the traveling cutting machine to a horizontal angle. .