JPH0735603Y2 - Tube material support device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a tubing material supporting device.

[Prior Art] For example, in a seamless steel pipe rolling line, as shown in FIG. 3, a plurality of guide rollers 3 and pipe material supporting devices 4 are alternately arranged at the outlet of the piercer 1 along the line direction 2. ing. Then, the pipe material (not shown) is rotated by the piercer 1 and perforated while being drawn to the downstream side in the line direction 2 while the bar (not shown) is sent by the guide roller 3 from the downstream side in the line direction 2 to the upstream side. Sequentially supported by a plurality of tubing material supporting devices 4, and then the piercer 1
The tip of the tubing material coming out of the piercer 1 is inserted into the bar in the vicinity of the outlet of the piercer 1, is fed to the downstream side in the line direction 2 by the guide roller 3, and is sequentially circulated in the circumferential direction from the upstream side in the plurality of tubing material supporting devices 4. Is going to be supported by.

The tubing material supporting device 4 has the structure shown in FIGS.

That is, a frame 7 having a space 6 through which the pipe material 5 can pass in the line direction 2 is provided, and on the circumference of a circle centered on the axial center position 8 of the pipe material 5 of the frame 7 and in the circumferential direction, etc. A plurality of (three in the figure) axes extending in the line direction 2 at a distance position
9, 10 and 11 are arranged, and the shafts 9, 10 and 11 have a bifurcated rear end when viewed from the front, the middle part of the arm 12, the first apex of the triangular arm 13, and the arm 14 Pivot the middle parts of the
At the tip of the arm 13, the second apex of the arm 13, and the tip of the arm 13 at a position equidistant from the shafts 9, 10, 11 by connecting both ends of the support rollers 15, 16, 17 extending in the line direction 2 to the shafts 18, 19, It is pivotally supported by using 20, and links 21, 22 are respectively provided between the first rear end of the arm 12 and the third apex of the arm 13 and between the second rear end of the arm 12 and the rear end of the arm 14. , Axes 23, 24 and 25, 26, using axes 9, 10,
A shaft connected to the second rear end of the arm 12 by connecting the lines connecting 24, 23, 9 and 9, 11, 26, 25, 9 so as to form a parallelogram.
A worm jack 27 extending in the up-down direction is connected to the top of the 25 using a drive lever 28.

In FIG. 5, 35 is a bar inserted into the tube material 5, 36 is a cylinder for opening and closing the support rollers 15 to 17, and 37 is a cylinder for removing the support roller 17 from above the space 6. is there.

When the worm jack 27 is extended, the arm 12 swings clockwise around the shaft 9 via the drive lever 28, and the arms 13 and 14 move through the links 21 and 22, respectively. 1
As it swings clockwise around 1 in Fig. 5, arms 12 to 1
4 The support rollers 15 to 17 at the tips move toward the axial center position 8 of the tube material 5 all at once, so that the outer circumference of the tube material 5 can be supported.

When the worm jack 27 is contracted, the arm 12 swings counterclockwise in FIG. 5 about the shaft 9 via the drive lever 28, and the arms 13 and 14 respectively move via the links 21 and 22 to the shaft 10 respectively. , 1
As it swings counterclockwise in Fig. 5 around 1, the arm 12
The support rollers 15 to 17 at the leading ends of the pipe members 14 to 17 simultaneously move away from the axial center position 8 of the pipe material 5, so that the supporting state on the outer periphery of the pipe material 5 can be released.

Also, by extending the cylinder 36, the worm jack 27 is forcibly pushed in, and the support rollers 15 to 17 are moved to the bar position.
It can be closed to support the perimeter of 35. Also, by contracting the cylinder 36, the worm jack 27
The supporting rollers 15 to 17 can be opened up to the preset position in step 1, and the holding of the pipe material 5 from the bar 35 can be performed. Further, by contracting the cylinder 37, the support roller 17 can be forcibly removed from above the space 6 and the tube material 5 can be taken out from the space 6 above.

In addition to the outlet of the piercer 1, the pipe material supporting device 4 is
It is provided for an elongator (tube expanding device) and the like.

[Problems to be Solved by the Invention] However, the above conventional tube material supporting device has the following problems.

That is, as a member that supports the outer periphery of the pipe material 5, a support roller is used.
Although 15 to 17 are used, since the support rollers 15 to 17 need to support both ends, one end of the support rollers 15 to 17 in the tubing material support device 4 closest to the piercer 1 outlet is connected to the outside of the frame 7. And place it in the piercer 1 outlet,
It was not possible to support the tubing material 5 immediately after coming out from the piercer 1.

Therefore, the tip of the tube material 5 that has been given rotation from the piercer 1 and has come out is in a free state in which it is not supported in the circumferential direction until it reaches the inside of the frame 7 of the nearest tube material support device 4. As a result, the tip of the tube material 5 is shaken in the radial direction by the centrifugal force due to the rotation, the tube material 5 is bent, and it is impossible to accurately make a hole in the axial center of the tube material 5. .

Further, since the tubing material supporting device 4 closest to the outlet of the piercer 1 could not be brought very close to the outlet of the piercer 1, the position of the tubing material supporting device 4 was set at the tip of the tubing material 5 by a bar.
Since it is located on the downstream side in the line direction 2 from the position where the tube 35 is inserted, the tube material supporting device 4 needs a cylinder 36 for supporting the bar 35 and then holding it for the tube material 5.

Further, since the tubing material supporting device 4 closest to the exit of the piercer 1 could not be brought very close to the exit of the piercer 1, the rear end of the tubing material 5 leaving the piercer 1 could pass through the tubing material supporting device 4. It becomes difficult in terms of space, and when the pipe material 5 is taken out upward from the space 6 of the pipe material supporting device 4 and sent to the subsequent process, the support roller 17 is removed from the space 6 above the cylinder 37. Was needed.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a tubing material supporting device capable of supporting tubing material in the circumferential direction immediately after coming out from the outlet of a piercer or other device. .

[Means for Solving the Problem] The present invention provides a frame having a space through which a pipe material can pass in the line direction, and a plurality of arms whose tips can move toward and away from the outer periphery of the pipe material, and the tips of the arms. A support roller capable of supporting the pipe material in the frame, and a support plate that extends outward in the line direction toward the outside of the frame and can support the pipe material is attached to the tip of the arm. The present invention relates to a tubing material supporting device.

[Operation] By moving the tip of the arm closer to and away from the outer circumference of the pipe material, the support roller attached to the end of the arm can support and release the pipe material inside the frame, and at the same time, the support plate outside the frame. The material can be supported and released.

Since the support plate extends outside the frame and upstream in the line direction, the tubing material can be supported at a more upstream position.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 and FIG. 2 show an embodiment of the present invention, in which the same reference numerals as those in FIGS. 3 to 5 represent the same parts.

The pipe support device 29 closest to the outlet of the piercer 1 has the following structure.

The pipe material 5 extends to the bearing portion 30 of the support rollers 15 to 17 provided at the tips of the arms 12 to 14 outside the frame 7 and upstream in the line direction 2 until it is inserted into the outlet portion of the piercer 1. The support plates 32, 33, 34 capable of holding the outer periphery of the are fixed.

Although not particularly shown, the surface of the pipe material 5 is not illustrated.
Install a cylindrical liner with a radius of curvature larger than the outer diameter of.

Next, the operation will be described.

When the worm jack 27 in FIG. 5 is extended, the arm 12 swings clockwise about the shaft 9, and the arms 13 and 14 center on the shafts 10 and 11 via the links 21 and 22, respectively. Since it swings clockwise, the bearing part 30 at the tip of the arm 12 to 14
The support rollers 15 to 17 supported by the above-mentioned move in unison toward the axial center position 8 of the pipe material 5 and thus can support the outer periphery of the pipe material 5.

At this time, at the same time, the support plates 32 to 34 fixed to the bearing portion 30 at the ends of the arms 12 to 14 also move together with the support rollers 15 to 17 toward the axial center position 8 of the tube material 5.

On the contrary, when the worm jack 27 is contracted, the arm
12 oscillates counterclockwise around the axis 9, and further links 21,2
Since the arms 13 and 14 oscillate counterclockwise around the shafts 10 and 11 via the support plate 2, the support plates 32 to 34 supported by the bearing portion 30 at the ends of the arms 12 to 14 collectively move the pipe material 5 together. Therefore, the supporting state of the tube material 5 on the outer circumference can be released.

At this time, at the same time, the support plates 32 to 34 fixed to the bearing portion 30 at the ends of the arms 12 to 14 also move away from the axial center position 8 of the tube material 5 together with the support rollers 15 to 17.

In this way, the supporting plates 32 to 34 are attached to the supporting rollers 15 to 17, and the tube material 5 is supported on the supporting rollers 15 inside the frame 7 and on the supporting plates 32 to 34 outside the frame 7. By doing so, the arm 12
~ 14 Support plate short in cantilever from bearing 30 at tip
32 to 34 can be supported and extended to the upstream side in the line direction 2 and can be inserted and arranged in the outlet of the piercer 1.
Therefore, it becomes possible to support the tube material 5 immediately after coming out of the piercer 1, and the tip of the tube material 5 is supported by the support plate 32.
It is possible to prevent the tubular material 5 from swinging and bending in the radial direction due to centrifugal force until it is supported in the circumferential direction by .about.34, which makes it impossible to accurately form a hole in the shaft center.

Further, since the tubing material supporting device 4 closest to the piercer 1 can be brought close to the exit of the piercer 1, the position of the tubing material supporting device 4 is set in the line direction from the position where the bar 35 is inserted into the tubing material 5. You can move to the upstream side,
Therefore, the cylinder 36 for switching the support plates 32 to 34 and the like from the bar 35 to the pipe material 5 can be eliminated.

Further, since the tubing material supporting device 4 closest to the piercer 1 can be brought close to the piercer 1 outlet portion, the rear end of the tubing material 5 exiting the piercer 1 can be passed through the tubing material supporting device 4, Therefore, the cylinder 37 for removing the support roll 17 from above the space 6 can be eliminated.

Moreover, the support roller 15 provided at the tip of the arms 12 to 14
Since the support plates 32, 33, and 34 are only fixed to the bearing portions 30 to 17 of the above, it is possible to easily modify the conventional device and realize it in a short time and at low cost.

The tubing material supporting device of the present invention is not limited to the above-mentioned embodiment, but can be installed in places other than the piercer, such as an elongator, where it is necessary to support the tubing material. Of course, various changes can be made without departing from the spirit of the invention.

[Advantage of the Invention] As described above, according to the tubing material supporting device of the present invention,
The following excellent effects can be achieved.

(I) Since the support plate is attached to the bearing portion that supports the support roller, it is possible to extend the support plate to the outside of the frame in the line direction and insert it into the outlet of the piercer, for example, and immediately after leaving the piercer. It becomes possible to support the tubing material in the.

(Ii) Since the tubing material support device closest to the piercer can be brought close to the piercer outlet, the position of the tubing material support device is moved to the upstream side in the line direction from the position where the bar is inserted into the tubing material. It is thus possible to dispense with the cylinder for transferring the support roller from the bar to the tube material.

(Iii) Since the tubing material supporting device closest to the piercer can be brought as close as possible to the piercer outlet portion, the rear end of the tubing material exiting the piercer can pass through the tubing material supporting device, and thus the supporting roll can be opened. It is possible to eliminate the need for a cylinder for removing the cylinder from above.

(Iv) Moreover, since the support plate is simply fixed to the bearing portion of the support roller provided at the tip of the arm, the conventional device can be easily modified and realized in a short time and at low cost.

[Brief description of drawings]

FIG. 1 is a schematic plan view of a piercer outlet part using the device of the present invention, FIG. 2 is a plan view of an embodiment of the present invention, and FIG. 3 is a schematic plan view of a piercer outlet part using a conventional device. , FIG. 4 is a plan view of the conventional example, and FIG. 5 is a partially see-through V- of FIG.
It is a V arrow line view. In the figure, 2 is a line direction, 5 is a tube material, 6 is a space portion, 7 is a frame, 12, 13, 14 are arms, 30 is a bearing portion at the tip of the arm,
Reference numerals 32, 33 and 34 denote support plates.

Claims (1)

[Scope of utility model registration request] 1. A frame having a space through which a pipe material can pass in a line direction is provided with a plurality of arms whose tips can move toward and away from the outer periphery of the pipe material, and the pipe material is provided at the tips of the arms in the frame. While supporting a support roller that can be supported,
Furthermore, a supporting member for a pipe material is attached to a tip of the arm, the supporting plate extending outward in the line direction toward the outside of the frame and capable of supporting the pipe material.