JPH11314750A - Turning device for long conveyed material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the cost of equipment by simplifying its structure, insofar as possible. SOLUTION: This turning device is equipped with a plurality of retracting rollers 3a to 3e retracting a billet 2 successively fed from conveyor lines A to D into the downstream after receiving it one after another, and it is also equipped with a plurality of delivery rollers 4a to 4f whose axial directions turned to the direction orthogonal with the conveying direction after being turned, at the further downstream part of the retracting roller 3e arranged at the most downstream part. There delivery rollers 4a to 4f are in close vicinity to the roller 3e at the most downstream part, and a side guide 7 consisting of a thin platelike member extending along a conveyor line E is installed in the upper part of an end on the reverse side to the retracting roller 3e in making the cross direction turn to the vertical direction at a specified interval from the retracting roller 3e. Then, four rollers 8a to 8d capable of reciprocating along the retracting rollers 3a and 3b are installed in an interval between the retracting rollers 3a and 3b, and a tail end of the billet 2 before reaching the side guide 7 is shiftable in the lateral direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a turning device for turning a long object such as a billet in a continuous casting plant or a shape steel plant, for example. The device configuration is simplified.

[0002]

2. Description of the Related Art Conventional techniques of this kind include, for example,
Japanese Utility Model Publication No. 7-434, Japanese Utility Model Publication No. 7-20103, and Japanese Utility Model Application Laid-Open No. 6-54631 disclose such techniques.

The conventional apparatuses disclosed in these publications are provided with a draw-in roller and a push-back roller so as to sandwich a conveying line of a long conveyed material after turning from both sides, and rotate the drawing roller in a rotating direction corresponding to the conveying direction before turning. While the roller is driven to rotate, the push-back roller is driven to rotate in the opposite direction, and the long conveyed material is rotated using the rotation of the pull-in roller and the push-back roller in the opposite directions. I was

[0004] Incidentally, the turning of the long conveyed article is triggered by using a stopper disposed obliquely rearward on the back side of the push-back roller (Japanese Utility Model Publication No. 7-434).
Also, when a long transported object arrives on the pull-in roller and the push-back roller, the tail end of the long transported object is moved to the downstream side in the transport direction after turning (Japanese Utility Model Publication No. 7-20103), When a long conveyed object arrives on the roller and the push-back roller, the tip of the long conveyed object is moved to the upstream side in the conveyance direction after turning, and the tail end is moved to the downstream side in the conveyance direction after turning. Gazette).

[0005]

However, the prior art disclosed in the above publication has a problem that the equipment cost is increased because a push-back roller is essential in addition to the pull-in roller. I have. In addition, since the push-back roller body and the equipment for driving the roller must be disposed further behind the transport line for the long transported material after turning, the installation range of the equipment is increased accordingly. There is also a problem that it will.

SUMMARY OF THE INVENTION The present invention has been made in view of such unresolved problems of the prior art, and has a simple structure, and is capable of performing highly accurate turning control. It is intended to provide a turning device.

[0007]

In order to achieve the above object, an invention according to claim 1 is an apparatus for turning a long conveyed object conveyed with an end portion at the head, wherein A plurality of long pull-in rollers that rotate to receive the long transported material and pull in the downstream side in the transport direction before turning, and the rolled-up roller that is arranged further downstream of the most downstream roller among these pull-in rollers. A plurality of payout rollers that rotate to receive and transport the long transported material to the downstream side in the transport direction after rotation, and are disposed at a position higher than the payout roller at a predetermined distance from the most downstream roller of the drawing-in roller. A side guide that is provided and extends along the post-turning conveyance direction, and a front end or a tail end of the long conveyed product before the tip reaches the side guide is moved upstream or down in the post-turning conveyance direction. And the end portion moving device movable to the side, with a.

According to a second aspect of the present invention, in the device for turning a long transported object according to the first aspect of the present invention, the end moving device is disposed between the pull-in rollers. The leading end or the tail end of the long transported object is moved by a movable portion that can reciprocate along rollers.

According to a third aspect of the present invention, in the device for turning a long conveyed product according to the first or second aspect, the end moving device is provided with a tip or a tail end of the long conveyed product. The moving distance is set to 10% or more of the length dimension of the long transported object.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 are views showing an embodiment of the present invention, and FIG. 1 is a plan view of a turning device 1 according to the present invention.

First, the structure will be described.
Is a device for changing the conveying direction of the billet 2 as a long conveyed object by 90 degrees. The billet 2 is conveyed from the upper side to the lower side in FIG.
After being turned around, it is paid out to the left side of FIG. In this example, as shown by arrows A to D, four feed-side transport lines are provided by feed rollers 20 a to 20 d for feeding the billet 2 to the turning device 1. The delivery line on the delivery side is one system as shown by an arrow E. Therefore, the billet 2 is sequentially transferred from each of the transport lines A to D.
The billets 2 are turned by 90 degrees in the turning device 1 and paid out to the transport line E. In this example, the direction in which the arrows A to D face is the pre-turning transport direction, and the direction in which the arrow E faces is the post-turning transport direction.

Then, the turning device 1 includes transport lines A to D
And a plurality of (five in this example) pull-in rollers 3a to 3e which receive the billet 2 sent from the hopper and pull it further downstream. These retracting rollers 3
Reference numerals a to 3e denote long drive rollers, which are arranged in parallel with each other at intervals. The lengths of the pull-in rollers 3a to 3e are not always the same, and the two rollers 3a and 3b on the upstream side have the shortest dimension, and the dimensions of the next two rollers 3c and 3d are the same. Next, the roller 3e on the most downstream side is the longest. The reason why the dimension of the upstream retracting roller is shorter than the dimension of the downstream retracting roller is that it is adjusted to the trailing end and tail end of the billet 2 at the time of the rolling operation described later.
As a result, useless rollers need not be used, and the cost can be reduced accordingly.

On the further downstream side (downward in FIG. 1) of the pull-in roller 3e disposed on the most downstream side, a plurality of payouts whose axial direction is oriented in a direction perpendicular to the conveying direction after rotation (ie, the vertical direction in FIG. 1). Rollers 4a to 4f are provided.

The payout rollers 4a to 4f are
Is a roller having an axial dimension slightly larger than the width dimension of the billet 2, and the height position of the bottom surface of the billet 2 when being conveyed by the payout rollers 4a to 4f is conveyed by the drawing rollers 3a to 3e. The lower end of the billet 2 is disposed close to the most downstream draw-in roller 3e so as to be slightly lower than the height position of the bottom surface of the billet 2.

A plurality of transport rollers 5 (only three of them are shown in FIG. 1) are disposed downstream of the payout rollers 4a to 4f in the transport direction after the rotation. , The billet 2 after turning is on the transport line E
Is transported further downstream.

At the end of the payout rollers 4a to 4f on the side opposite to the draw-in roller 3e, a side guide 7 made of a plate-like member extending along the transport line E is provided.
e, a predetermined distance away from it, and its width direction is oriented vertically,
It is arranged so as to be located above the payout rollers 4a to 4f.

Then, the two pull-in rollers 3 on the upstream side
a and 3b, between the pull-in rollers 3a and 3b
b, a rod 8 is arranged in parallel with the rod 8
Can be reciprocated in the longitudinal direction by the cylinder device 9.

On the upper surface of the rod 8, four rolls 8a to 8d whose axes are oriented vertically are rotatably mounted, and the specific mounting positions of the rolls 8a to 8d are as follows. When moved to the left in FIG. 1, the rolls 8a to 8d are adjusted so as to be located slightly to the left of the extension lines of the transport lines A to D in FIG.

The reason why the rod 8 is disposed between the drawing rollers 3a and 3b is that the tip of the billet 2 does not reach the side guide 7 when the tail end of the billet 2 is above the rod 8. This is to obtain a state.

Further, at each of the upstream and downstream positions close to the rod 8, the presence or absence of the billet 2 conveyed on the drawing rollers 3a to 3e along any of the conveying lines A to D The sensors 10 and 11 composed of the laser light emitters 10a and 11a and the laser light receivers 10b and 11b are provided so that can be detected.

The turning device 1 comprises sensors 10 and 1
1 has a controller (not shown) for driving and controlling the cylinder device 9 based on the output of the sensor 1. The controller 10 does not detect the billet 2 but the sensor 11 detects the billet 2. When the tail end of the billet 2 is detected between the pulling rolls 3a and 3b, the cylinder device 9 is driven to move the rod 8 at the left position as shown in FIG. And the tail end of the billet 2 transported along any of the transport lines A to D is moved rightward in FIG. 1 (downstream in the transport direction after turning) by one of the rolls 8a to 8d. It is designed to be moved. Here, the rolls 8a to 8
The moving distance of the tail end of the billet 2 by d is a distance of 10% or more of the length of the billet 2. Thereafter, before the next billet 2 conveyed on any of the conveyance lines A to D is delivered to the pull-in roller 3a, the rod 8 moves to the left in FIG. 1 (upstream in the conveyance direction after turning). The cylinder device 9 is driven to return to the position.

Next, the operation of this embodiment will be described. That is, the billet 2 is sequentially sent to the turning device 1 along the transport lines A to D. It is assumed that one billet 2 is sent to the turning device 1 along the transport line C. Then, the billet 2 is sent further downstream along the pre-rotation conveyance direction by the draw-in rollers 3a to 3e, and its tail end is drawn into the draw-in roller 3a.
Immediately after passing through, the sensor 10a does not detect the billet 2 but the sensor 11 detects the billet 2, so the controller drives the cylinder device 9 to move the rod 8 to the right side in FIG. Let it.

As a result, each of the rollers 8a to 8d
The roller 8c located on the left side of the extension of the transport line C presses the side surface of the tail end of the billet 2, so that the tail end of the billet 2 After turning, it moves upstream in the transport direction.

In this case, the tip of the billet 2 does not reach the side guide 7, and the tip of the billet 2 can move freely in the horizontal plane. , The billet 2 turns around its center of gravity (accordingly, substantially at the center in the longitudinal direction),
The posture is like a billet 2a indicated by a broken line in FIG. In other words, the billet 2 is inclined at a predetermined angle with respect to the pre-rotation conveyance direction by moving its tail end upstream in the conveyance direction after rotation and moving its tip end downstream in the conveyance direction after rotation. For this reason, in order to incline the billet 2 by the same angle in the horizontal plane, the moving amount of the tail end is half the moving amount as compared with the case where the tail end is moved after the front end reaches the side guide 7.

The billet 2a inclined with respect to the pre-rotation conveyance direction is kept in the same orientation as the drawing roller 3b.
3e, the tip of the billet 2a reaches the side guide 7. Then, billet 2a
The tip of the billet 2a is prevented from moving further downstream in the transport direction before turning, and the tip of the billet 2a moves along the side guide 7 as long as there is some frictional resistance between the tip of the billet 2a and the side guide 7. It is also prevented. For this reason, as shown in FIG. 2, which is a perspective view when the side guide 7 side is viewed from the upstream side in the transport direction before turning,
a turns around the tip end so that the tail end turns greatly, so that the inclination angle of the billet 2 gradually increases,
At the end, the attitude of the billet 2 becomes substantially parallel to the side guide 7, and falls on the payout rollers 4a to 4e.
As shown in the billet 2b in FIG. 2, the sheet is moved downstream along the transport line E by the transport roller 5.

The turning operation of the billet 2 as described above requires that the initial inclination angle of the billet 2 (the posture of the billet 2a in FIG. 1) forcibly given by the rollers 8a to 8d is not large enough. Lack of certainty, the minimum angle is, according to experiments by the present inventors, the length of the billet 2 and the deviation between the leading end and the tail end of the billet 2a when an initial inclination angle is given. The ratio to the amount (moving amount ratio) is 20
%. In order to realize a smoother tilting operation, the above-mentioned moving amount ratio is set to 3
Although it is desirable to set it to 0% or more, the stroke amount of the base plate 10 must be increased accordingly in order to increase the movement amount ratio. Therefore, in order to simplify the apparatus configuration, the movement amount ratio is at most. 20-30%
It is advisable to set the range as follows.

On the other hand, as described above, if the tail end of the billet 2 is moved by the rollers 8a to 8d before the tip of the billet 2 reaches the side guide 7 as in the present embodiment, the billet 2 is In order to turn around the center of gravity, in order to make the above-mentioned movement amount ratio 20 to 30%, the movement amount of the tail end is half, that is, 10 to 10 of the longitudinal dimension of the billet 2.
That would be 15%. For example, if the total length of the billet 2 is 5 m, the tail end may be moved in the left-right direction by about 50 cm to 75 cm.

In order to forcibly move the tail end of the billet 2, the members that come into contact with the side surfaces of the tail end of the billet 2 are rotatable rollers 8a to 8d. Is moved to the downstream side, the movement is smoothly guided by the rotation of the rollers 8a to 8d, so that the billet 2 does not wear due to friction between the two.

According to the configuration of the present embodiment, the turning of the billet 2 can be realized by the pull-in rollers 3a to 3e, the rollers 8a to 8d, and the side guides 7. There is no need to provide a push-back roller as in the conventional apparatus described above, so that there is an advantage that the equipment cost can be reduced and the space for installation can be reduced.

In the present embodiment, the rod 8, the rollers 8a to 8d, the cylinder device 9, the sensors 10, 11 and a controller (not shown) constitute an end moving device, and the rollers 8a to 8d serve as movable parts. Corresponding.

In the above embodiment, the tail end of the billet 2 before the tip reaches the side guide 7 is moved in the left-right direction to incline the billet 2 in the horizontal plane. However, the present invention is not limited to this. Instead, the tip of the billet 2 on the pull-in rollers 3a to 3e may be moved in the left-right direction to tilt the billet 2 in a horizontal plane.

The moving direction of the tail end of the billet 2 is not limited to the upstream side in the transporting direction after turning, but may be moved to the downstream side in the transporting direction after turning. That is, if the tail end of the billet 2 is moved to the upstream side in the transport direction after turning as in the above embodiment, the billet 2
Is not changed before and after the turning, but if the tail end of the billet 2 is moved downstream in the conveying direction after the turning, the end of the billet 2 which is the leading end in the conveying lines A to D is changed. On the other hand, the transport line E can be set to the tail end side. Conversely, if the tip of the billet 2 is moved to the upstream side in the transport direction after turning, if the configuration in which the tip of the billet 2 is moved is adopted, the billet 2 which is the first in the transport lines A to D will be moved. Conversely, the end of the transport line E can be on the tail end side.

For this reason, for example, when the billet 2 heated before rolling reaches the turning device 1 because the tip is heated before the tail, the temperature of the tip is higher than that of the tail. In the case where the billet 2 is lowered, the high-temperature tail end can be made the top by exchanging the top side of the billet 2 and the billet 2 can be fed to the rolling mill from the high-temperature end side, which is advantageous for rolling.

Further, in the above embodiment, since the rollers 8a to 8d are provided corresponding to the transport lines A to D before turning, there is an advantage that the moving distance of the rod 8 can be short. However, the present invention is not limited to this.
May be executed to move the tail end (or tip) of each billet 2 that is transported. In the above embodiment, the four rollers 8a to 8d are simultaneously moved by the common rod 8, but the rollers 8a to 8d may be individually movable.

In the above-described embodiment, the turning device according to the present invention has been described by taking the device for turning the billet 2 as an example. However, the application of the present invention is not limited to this. It may be a device that turns a long transported object other than 2 (for example, a section steel).

[0036]

As described above, according to the apparatus for turning a long transported object according to the present invention, a plurality of long pull-in rollers, side guides, and an end moving device are used. Since the transported product is turned over and the long transported product after the rotation is paid out by a plurality of payout rollers, the configuration is simple and the equipment cost is low.

In particular, according to the invention of claim 3, there is also an effect that more stable turning control can be performed.

[Brief description of the drawings]

FIG. 1 is a plan view of a turning device according to an embodiment.

FIG. 2 is a perspective view for explaining the operation of the embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Rotating device 2, 2a, 2b Billet (Long conveyance object) 3a-3e Retraction roller 4a-4f Discharge roller 7 Side guide 8 Rod 8a-8d Roller (movable part) 9 Cylinder device

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Kazuo Omori 1-chome, Mizushima-Kawasaki-dori, Kurashiki-shi, Okayama Pref. Chome (without address) Mizushima Works, Kawasaki Steel Corporation (72) Inventor Koichi Konishi 1-chome, Mizushima-Kawasaki-dori, Kurashiki City, Okayama Prefecture (without address) Inside Mizushima Works, Kawasaki Steel Corporation

Claims (3)

[Claims] 1. An apparatus for turning a long conveyed object conveyed with an end portion at the head, wherein the long conveyed material before turning is received and rotated so as to be drawn into a downstream side in a conveying direction before turning. A plurality of elongate pull-in rollers; and a rotatable roller disposed downstream of the most downstream roller among the pull-in rollers to receive the turned long conveyed material and to pay it out downstream in the conveying direction after turning. A plurality of payout rollers, a side guide disposed at a position higher than the payout roller so as to be separated from the most downstream roller of the drawing roller by a predetermined distance, and extending along the conveying direction after the turning, An end moving device capable of moving a leading end or a tail end of the long transported object before reaching the guide to an upstream side or a downstream side in the transport direction after the rotation. Turning apparatus of Okubutsu. 2. The end moving device according to claim 1, wherein a movable portion disposed between the draw-in rollers and reciprocally movable along the draw-in rollers moves a leading end or a tail end of the long transported object. 2. A device for turning a long transported object according to claim 1, wherein: 3. The moving distance of the front end or the tail end of the long conveyed object by the end moving device is 10% or more of the lengthwise dimension of the long conveyed object. Turning device for long transported goods.