JPH037043Y2 - - Google Patents

Description

[Detailed description of the invention] <Industrial field of application> The present invention relates to a side guide for guiding a strip to a strip winding device of a rolling facility, and is particularly intended to improve the response characteristics and buffer function. .

<Prior Art> As is well known, a strip rolled by a finishing mill of a metal strip rolling facility used for steel strips etc. is wound into a coil shape by a strip winding device. A side guide is installed at the front of the device, which guides the strip to the winding device.

As shown in FIG. 3, which shows an example of strip rolling equipment, the strip 30 is finished rolled by the finishing mill 40 and conveyed on the table rollers 20 via the cooling device 50, and is guided to the side guide 1. The coil 30a is then sent by the pinch roll 60 toward the winding device 70, where it is wound up as a coil 30a.

As shown in FIG. 4, which shows the planar shape of the conventional side guide 1, and FIG. 5, which shows an enlarged view of the short stroke drive section on the work side (right side in FIG. It is fixedly installed, and a lower bed 5 is slidably mounted on its upper surface. An upper bed 6 is slidably mounted on the upper surface of the lower bed 5, and the leading end of the upper bed 6 is fixed to two pairs of guide plates 1a and 1b.
The main parts of the air cylinder 2 for the short stroke of these guide plates 1a and 1b are composed of a cylinder 2a and a piston rod 2b.The cylinder 2a is fixed to the upper surface of the upper bed 6, and the side plate 1
It is integrated with the above-mentioned guide plates 1a and 1b via 4. A clevis 8 is attached to the piston rod 2b.
The fixed boss 7 connected via the upper bed 6
When the stoppers 12 and 13 fixed to the upper bed 6 come into contact with the fixed boss 7, the sliding stroke of the upper bed 6 is fixed. is limited. One end of the entry guide 1c on the carry-in side of the strip plate 30 is connected to the guide plate 1b via the hinge part 1d.
The other end is connected to a fixed hinge portion 1e. A plurality of rollers 21 for conveying the strip 30 are supported by bearings 22, and a motor 23 is installed on each drive side (left side in FIG. 4). The drive side and work side of the screw shaft 15 that moves the lower bed 5 have reverse threads, respectively, and these left and right screws connect to a screw nut (not shown) fixed to the lower part of the lower bed 5. , and are rotationally driven by a motor 17 via a worm reducer 18 and a drive shaft 19.

In order to guide the strip plate 30 to the winding device 70, first, the motor 17 is driven to rotate the screw shaft 15, and the lower bed 5 is moved via a screw nut (not shown), so that each guide plate 1
Move a and 1b to the required positions. These guide plates 1a and 1b are moved by a certain amount, for example, 110 mm, in order to improve the passing of the strip plate 30 conveyed through the respective intervals between the guide plates 1a and 1b.
The dimensions are adjusted so that the dimensions include an additional millimeter margin. Next, the tip of the strip plate 30 passes through the entry guide 1c and the guide plates 1a, 1b, and immediately before being bitten by the pinch roll 60 shown in FIG.
a, 1b, so that the air cylinders 2 on the drive side and the work side are short-stroked, for example, by 50 mm each, and the tip of the strip plate 30 is guided to the center position of the line. and then sent to the winder 70 by the pinch rolls 60.

<Problems to be solved by the invention> Conventional side guide 1 shown in Figures 3 to 5
In this example, when the guide plates 1a and 1b are narrowed by a short stroke just before the strip plate 30 is bitten by the pinch roll 60, and when the strip plate 30 is narrowed by a short stroke,
1b, the wide parts such as the front end and rear end of the strip 30, or the meandering parts of the side edges thereof come into contact with the guide plates 1a and 1b.

Normally, the strip plate 30 passes through the guide plates 1a and 1b at a high speed of 4 meters to 21 meters per second, so when they come into contact, the impact is large and the side edges of the strip plate 30 may have missing edges, bent edges, etc. There is a great possibility that defects will occur. In order to alleviate this impact, the above-mentioned conventional apparatus uses the air cylinder 2 having an air spring function for the short stroke of the guide plates 1a and 1b.

However, in general, the air cylinder 2 is operated approximately 0.5 seconds after issuing an operation command such as opening the air valve.
Since there is a response delay of 1.5 seconds to 1.5 seconds and an error in the operation time due to the uneven response timing of each of the plurality of air cylinders 2, each air cylinder 2 does not operate in perfect synchronization instantly, and the guide plate 1a, It takes time for 1b to complete its movement to the required position.
On the other hand, since the strip plate 30 is conveyed at high speed as described above, even if the short stroke movement of the guide plates 1a and 1b is delayed for several seconds, the tip of the strip plate 30 cannot be accurately positioned, resulting in positional deviation. In this state, it is caught in the pinch roll 60 and wound up in the winding device 70. Once the guide plates 1a and 1b are misaligned and caught in the pinch roll 60, the guide plates 1a and 1b
Even if the band plate 30 completes moving to its normal position after a few seconds,
The winding device 70 cannot correct the positional deviation immediately.
A so-called bamboo shoot-shaped coil 30 in which the edges of the first few layers of the coil 30a wound in the coil 30a are uneven.
a, and there was a problem that the quality of the coil deteriorated.

It is also possible to use a hydraulic cylinder such as a hydraulic cylinder with excellent response performance to actuation commands for the short stroke of the guide plates 1a and 1b, but the hydraulic cylinder does not have a shock absorbing cushion function. Therefore, the strip plate 30 is the guide plate 1.
If it collides with parts a and 1b, there is a possibility that defects such as chipped edges or bent edges may occur on the side edges thereof.

The present invention solves the problems of the side guide of the conventional strip winding device, and provides a side guide that has both response performance to a short stroke operation command and shock absorption performance when a strip collides. The purpose is to

<Means for Solving the Problems> The side guide of the strip winding device of the present invention includes a guide plate that faces the side end surface of the rolled strip sent to the winding device, and a guide plate that faces one end of the strip winding device. an upper bed fixed to; a lower bed that supports the upper bed slidably by a certain amount in the axial direction of the band plate;
a hydraulic cylinder provided at the other end of the upper bed and having a hollow piston rod capable of reciprocating in the width direction of the strip plate; A connecting rod movably passing through the piston rod, a connecting means connecting one end of the connecting rod to the lower bed, and a connecting means interposed between the other end of the connecting rod and the piston rod to connect the piston rod. The guide plate is provided with elastic pressing means that urges the side edge of the band plate toward the side end face of the band plate and instantly absorbs the impact generated when the side edge of the band plate contacts the guide plate.

<Function> When the guide plate is in the standby state, working fluid is supplied to the hydraulic cylinder so that the guide plate moves away from the side edge of the strip plate, thereby causing the upper bed to be closer to the guide plate than the lower bed. At the same time, it moves to one sliding end away from the side edge of the strip plate.

When the rolled strip is fed into the winding device, the direction of supply of working fluid to the hydraulic cylinder is switched, thereby moving the guide plate along with the upper bed to the lower bed in the width direction of the strip. After sliding by a certain amount, the guide plate comes close to the side edge of the strip, regulating the position of the strip.

In this state, when the side edge of the strip collides with the guide plate, if this collision force is larger than the urging force of the elastic pressing means, the guide plate will move upward against the urging force of the elastic pressing means. It slides together with the bed, piston rod, etc. against a connecting rod that is integral with the lower bed. However, the impact generated at this time is instantly absorbed by the action of the elastic pressing means, and the guide plate, upper bed, etc. return to their original states.

As shown in FIG. 1 showing the cross-sectional structure of the main part of an embodiment of the side guide of the strip winding device according to the present invention, and FIG. It consists of a cylinder 3a fixedly installed on the upper surface of the cylinder 3a, and a cylindrical piston rod 3b fitted into the cylinder 3a. A flange portion 3c provided on the outer surface of the piston rod 3b is pressed in the stroke direction by the spring force of a coil spring 3d, and the other end of the coil spring 3d is held down by a bush 3e. In addition, in this invention, the hydraulic cylinder 3 is used as a liquid pressure cylinder, and the coil spring 3d and the bush 3e etc. are used as an elastic pressing means of this invention, but it is of course possible to use other things. A connecting rod 3f passes through the center of the piston rod 3b and the bush 3e, and a holding nut 3g is screwed into a threaded portion formed at the tip of the connecting rod 3f to hold down the bush 3e.
The end of the connecting rod 3f opposite to the threaded portion has a clevis 8, a pin 9 and a stop ring 1.
The fixing boss 7, the clevises 8 and 9, the stop ring 11, etc. constitute the coupling means of the present invention. This fixing boss 7 is surrounded by stoppers 12, 13 and a side plate 14, and is fixed to the upper surface of the lower bed 5 through a square hole bored in the upper bed 6. or,
A screw nut 16b fixed to the lower surface of the lower bed 5 is provided with a screw for the work side, and is fitted with a threaded portion of the screw shaft 15. Note that the above-mentioned screw on the drive side side (not shown) is a reverse screw. The structure of the guide plates 1a and 1b that guide the strip plate 30 is shown in FIGS. 4 and 5.
This is similar to the case of the conventional device shown in the figure.

To guide the strip plate 30, first rotate the screw shaft 15, and then rotate the upper bed 6 and the guide plate 1a.
The lower bed 5 to which is fixed is slid on the upper surface of the slide base 4, and the side surface of the guide plate 1a is aligned with the strip plate 3.
It is moved so as to maintain a clearance of, for example, 55 mm from the side edge of 0.
This is the state shown in the figure. Next, the strip plate 30 is conveyed toward the guide plate 1a while rotating the roller 21, and just before the tip of the strip plate 30 is bitten by a pinch roll (not shown), the direction of supplying hydraulic pressure to the hydraulic cylinder 3 is reversed. Cylinder 3 to the left in Figure 1
By making a short stroke of a by 50 mm, for example, the stopper 12 is moved to the fixed boss 7.
It stops when it hits , completing the movement of the guide plate 1a.
In this state, there is a gap of 5 mm between the side surface of the guide plate 1a and the side edge of the strip plate 30, and the strip plate 30 can be guided to the normal position.

Here, the impact generated when the strip plate 30 comes into contact with the side surface of the guide plate 1a is transmitted to the cylinder 3a via the side plate 14 and the upper bed 6, and further to the cylinder 3a.
It is transmitted to the piston rod 3b, which is fixed by hydrostatic pressure, and is absorbed by the coil spring 3d. Also, due to the difference in the width of the strip plate 30 and the meandering of the side edges of the strip plate 30, the strip plate 3 is formed on the side surface of the guide plate 1a.
The impact generated by contact with the 0 is also absorbed in the same manner as above.

<Effects of the invention> According to the side guide of the strip winding device of the present invention, a hydraulic cylinder is used for the shot stroke, so when the strip is guided by the side guide and sent to the pinch roll, the pinch roll is removed. Even if each cylinder is actuated immediately before the roll, the guide plates can be moved simultaneously in a short time without causing problems such as delayed response or unequal response. Therefore, it is possible to obtain a high-quality coil with uniform side edges when the strip plate is caught in the pinch rolls at the proper position and wound on the winding device.

[Brief explanation of drawings]

Fig. 1 is a longitudinal cross-sectional view of the work side short stroke drive section in an embodiment of the side guide of the strip winding device of the present invention, Fig. 2 is a cross-sectional view taken along the - arrow direction, and Fig. 3 is a conventional Conceptual diagram of strip rolling equipment, Figure 4 is a plan view of the conventional side guide, Figure 5
The figure is an enlarged view of the short stroke drive section on the work side. In the drawing, 1 is a side guide, 1a and 1b are guide plates, 3 is a hydraulic cylinder, 3a is a cylinder, 3b is a piston rod, 3c is a flange, 3d is a coil spring, 3e is a bush, 3f is a connecting rod, and 3g is a presser foot. Natsu, 4 is slide base, 5
is the lower bed, 6 is the upper bed, 7 is the fixed boss,
8 is a clevis, 9 is a pin, 12 and 13 are stoppers, 15 is a screw shaft, 16b is a screw nut, 30 is a strip plate, 30a is a coil, 70
is a winding device.

Claims (1)

[Scope of utility model registration request] A guide plate facing the side end surface of the rolled strip sent to the winding device, an upper bed fixed to one end of the guide plate, and a slider that slides the upper bed by a certain amount in the axial direction of the strip. a lower bed movably supported; a hydraulic cylinder provided at the other end of the upper bed and having a hollow piston rod capable of reciprocating in the width direction of the strip; and coaxially with the piston rod of the hydraulic cylinder. a connecting rod that passes through the piston rod so as to be slidable by a predetermined amount with respect to the piston rod; and a connecting means that connects one end of the connecting rod to the upper bed;
Occurs when the piston rod is interposed between the other end of the connecting rod and the piston rod and urges the piston rod toward the side end surface of the strip, and the side edge of the strip comes into contact with the guide plate. A side guide for a strip winding device, which is equipped with an elastic pressing means that instantly absorbs the impact caused by the winding.