JP2504730Y2 - Guide shift device - Google Patents

Description

[Detailed description of the device]

[0001]

[Industrial field of application] The present invention is capable of speeding up the shift operation of the roller guide accompanying the change of the caliber of the vertical rolling mill.
The present invention also relates to a guide shift device for accurately aligning the roller guide with a required caliber.

[0002]

2. Description of the Related Art As a device for rapidly shifting a roller guide according to a caliber of a rolling roll, a screw rod provided between housings of a rolling mill is engaged with a worm provided on a mounting base via a rotor, By rotating the handle connected to this worm, the mounting base is moved to a desired position, and the roller guide fixed to this mounting base is guided and shifted according to the required caliber of the rolling roll (for example, There is a practical application Sho 63-133806).

[0003]

The conventional roller guide shift device is applied to a horizontal rolling mill, but there are the following problems in adopting such a guide shift device to a vertical rolling mill. There was a point.

First, since the roller guide is a so-called cantilever support in which the roller guide is held only by the guide base portion, the guide head on the side opposite to the guide base is lowered, and the roller guide moves during rolling. Since the head vibrates, it is impossible to maintain an accurate pass line and reduce the dimensional accuracy of the rolled material.

Secondly, since the roller guide has no function of adjusting the path line of the roller guide, the path line of the roller guide cannot be easily adjusted.

Thirdly, when the exit roller guide is guide-shifted, the entry portion of the roller guide is inserted into the roll roll die, so that the entry portion is once pulled out from the die of the roll and then guided. Despite having to shift and insert the side entry into the rolling roll die after the guide shift is complete, it does not have the function of adjusting this guide shift.

The object of this invention is to prevent the guide head of the roller guide from going down, to prevent the head of the roller guide from vibrating during rolling, to maintain an accurate pass line, and The purpose is to prevent a decrease in dimensional accuracy. Another object of the present invention is to make it easy to adjust the path line of the roller guide. Yet another object of the present invention is to allow the guide shift adjustment of the roller guide to be a roll roll hole type.

[0008]

SUMMARY OF THE INVENTION A guide shift device of the present invention comprises a fixed part to be mounted on a rolling mill housing, a movable part held by the fixed part, and a position adjustment of the movable part in the pass line direction. A pass line adjusting mechanism for aligning the hole shape of the roller guide fixed to the movable part with the pass line of the rolling roll, and the rest bar provided on the movable part can be shifted according to the rolling roll caliber. And a guide shift mechanism for aligning the roller guide fixedly or removably attached to the rolling roll caliber.

The path line adjusting mechanism meshes with a pair of upper and lower screw shafts that are rotatable on the fixed part and are axially supported in a direction orthogonal to the axis of the rolling roll, and a worm gear provided on the head of each screw shaft. As described above, the pinion is screwed and the pass line adjusting shaft rotatably supported on the fixed part is engaged with the male screw parts provided on the pair of upper and lower screw shafts to move the movable part to this screw shaft. It consists of a female thread that holds it.

The guide shift mechanism is provided on both sides of the shift screw, which is rotatable on the movable part and is axially supported in the direction parallel to the axis of the rolling roll, and transmission means, for example, on each shift screw shaft. A pinion is provided so as to mesh with a certain worm gear, and a transmission shaft having a bevel gear at its end and rotatably supported by a movable portion, and a bevel gear meshing with the bevel gear of the above-mentioned transmission means are provided. Yes,
A shift adjusting shaft that is rotatably supported by a movable portion and a male screw portion of each of the shift screw shafts are meshed with female screw portions, and are provided so as to be fixed to the movable portion by a fixing means such as a hydraulic cylinder. And a guide base for fixing the roller guide to the rest bar.

In order to simplify the operation of the guide shift,
The pass line adjusting mechanism, the guide shift mechanism, the hydraulic cylinder for fixing the roller guide, and the hydraulic cylinder for adjusting the front and rear are positioned at desired positions controlled by the position controlling arithmetic unit equipped with the driving device and the position detector. It may be controllable.

[0012]

In order to adjust the position of the roller guide in accordance with the pass line, the pass line adjusting shaft provided on the fixed portion is rotated, and the entire movable portion held by the fixed portion is moved according to the rotating direction. Since the roller guide is moved in line with the line, the roller guide fixed to the movable portion is adjusted for the pass line.

In order to adjust the position of the roller guide in accordance with the rolling roll caliber, the rest bar fixed to the movable part can be moved by the fixing means, and then the shift adjustment shaft provided in the movable part is rotated. Often, since the movable portion is moved within the fixed portion according to the rotation direction, the roller guide held on the rest bar is guide-shifted in accordance with the rolling roll caliber.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the drawings. The guide shift device according to the present invention adjusts the fixed part 1, the movable part 2, and the movable part 2 in the pass line direction orthogonal to the axis of the rolling roll R so that the roller guide 3 passes through the rolling roll R. A path line adjusting mechanism for aligning with the line and a rest bar 4 provided on the movable part can be shifted according to the caliber of the rolling roll R, and the roller guide 3 is aligned with the caliber of the rolling roll R. And a guide shift mechanism.

As shown in FIGS. 1 to 3, a fixed part 1 fixed to a rolling mill housing holds a movable part 2, and a rest bar 4 can be moved by a hydraulic cylinder 5 to this movable part. It is fixed to. The roller guide 3 is detachably fixed to the rest bar 4 by a hydraulic cylinder 16 via a guide base 3a.

Here, a specific structure of the pass line adjusting mechanism will be described. A pair of screw shafts 6 are rotatably supported on the upper and lower sides of the fixed portion 1 in a direction orthogonal to the axis of the rolling roll R. The screw shaft 6 holds the movable portion 2, and the male screw portion 6b of the screw shaft is meshed with the female screw portion 2a of the movable portion. A worm gear 6a is provided at one end (left end in FIG. 2) of the screw shaft 6. Further, as shown in FIG. 1, a pass line adjusting shaft 7 is rotatably provided on the side of the fixed portion 1 (on the left side of FIG. 1). Pinions 7a, 7a are provided at both upper and lower ends of the pass line adjusting shaft 7, and each pinion meshes with the worm gear 6a.

A specific structure of the guide shift mechanism will be described. As shown in FIGS. 1 and 3, the movable part 2 has a right one,
A total of three shift screw shafts 8 consisting of two left shafts are rotatably supported in a direction parallel to the shaft of the rolling roll R.
A transmission shaft 9 and a shift adjustment shaft 10 are rotatably supported on the movable portion 2. A worm gear 8a is provided at the upper end of each shift screw shaft 8. In the transmission shaft 9, the transmission shaft on the left side of FIG.
a and 9a and a bevel gear 9b at the other end, and the right transmission shaft has a pinion 9a at one end and a bevel gear 9b at the other end. The shift adjusting shaft 10 has bevel gears 10a, 1 at both ends.
0a is provided. As shown in FIG. 3, the worm gear 8a of the shift screw shaft 8 meshes with the pinion 9a of the transmission shaft 9, and the bevel gear 9b of the transmission shaft meshes with the bevel gear 10a of the shift adjustment shaft 10.

As shown in FIGS. 1, 2 and 4, the respective male screw portions of the left and right three shift screw shafts 8 are meshed with the female screw portions 4a provided on the bearing portion 4b of the rest bar 4.

The roller guide 3 can be attached to and detached from the rest bar 4 by a hydraulic cylinder 16 for fixing, as shown in FIG. In addition, the adjustment shaft 1 for moving the roller guide back and forth
1 is provided.

As shown in FIG. 1, a pass line adjusting mechanism, a guide shift mechanism, a hydraulic cylinder 5 for fixing the rest bar 4 to the movable portion 2, and a roller guide 3 are attached to the rest bar 4.
The hydraulic cylinder 16 for fixing to the position is controlled by the position line control unit 14 including the pass line drive unit 12, the shift drive unit 12a, the pass line position detector 13, and the shift position detector 13a. The position can be controlled to the required position.

Positioning control is performed by the position control arithmetic unit 14
A required number of shift position data are stored in advance in accordance with the caliber position of the rolling roll R, and the shift position is position-controlled by instructing the number of this shift position data. For example, if there are four pieces of shift position data, the shift position data are: the caliber 1 at a position 20 mm from the origin position, the caliber 2 at a position 40 mm from the origin position, the caliber 3 at a position 60 mm from the origin position, and the caliber 4 Is set at a position 80 mm from the origin position, and this shift position data is used as the position control arithmetic unit 1
4 is stored by a digital switch (not shown) or the like, and a caliber selection switch (not shown) provided in this position control arithmetic unit indicates one of the caliber numbers 1 to 4. Then, it is configured to shift to a required position. In FIG. 1, reference numeral 15 denotes an electromagnetic switching valve unit, 1-dot chain line indicates an electric wire set, and 2-dot chain line indicates a hydraulic pipe set.

An operation for adjusting the position of the hole shape of the roller guide 3 according to the pass line of the rolling roll R will be described. FIG.
And in FIG. 2, when the pass line adjusting shaft 7 provided in the fixed portion 1 is rotated, the rotational force is changed to the pinions 7a, 7
a and the worm gears 6a, 6a are transmitted to rotate the pair of upper and lower screw shafts 6, and the male screw portion 6b of the screw shafts is rotated.
Since the female screw portion 2a of the movable portion 2 is meshed with the movable portion 2, the entire movable portion 2 is moved along the pass line according to the rotation direction of the screw shaft, and by this movement, the movable portion 2 is fixed via the rest bar 4. A certain roller guide 3 is adjusted for the pass line.

The operation of adjusting the position of the roller guide 3 according to the caliber of the rolling roll R will be described. When the hydraulic cylinder 5 is driven to set the rest bar 4 fixed to the movable portion 2 to be movable, and then the shift adjusting shaft 10 provided in the movable portion is rotated, the rotational force is bevel gear. 10
a and the bevel gear 9b of the transmission shaft 9, the pinion 9a, and the worm gear 8a, the left and right three shift screw shafts 8 rotate in total, and the male screw portion of the shift screw shaft is provided on the bearing portion 4b of the rest bar 4. Since the female screw portion 4a is meshed, the rest bar moves up and down in the fixed portion 1 according to the rotation direction of the shift adjusting shaft 10, so that the roller guide 3 held by the rest bar is aligned with the caliber of the rolling roll R. The guide is shifted.

To replace the roller guide 3 fixed to the rest bar 4, the hydraulic cylinder 16 is driven to
After releasing the fixation of the guide base 3a, the guide base 3a may be replaced with a new roller guide 3, and the hydraulic cylinder 16 may be driven again to fix the guide base 3a.

[0025]

According to the present invention, the movable portion held by the fixed portion is positionally adjusted in the pass line direction, and the hole shape of the roller guide fixed to the movable portion is positioned on the pass line of the rolling roll. To adjust the path line adjusting mechanism and the rest bar provided in the movable part to match the rolling roll caliber, and to align the roller guide fixedly or detachably attached to the rest bar to the rolling roll caliber. Since the guide head of the roller guide does not go down, the head of the roller guide does not vibrate during rolling, and an accurate pass line can be maintained. It is possible to prevent the dimensional accuracy of the material from deteriorating, and to adjust the path line of the roller guide and the guide system for performing the roller guide to the hole shape of the rolling roll. Capital adjustment and can be easily.

[Brief description of drawings]

FIG. 1 is a partially sectional front view showing an embodiment of the present invention.

FIG. 2 is a partial cross-sectional front view showing a positional relationship between a fixed portion, a rest bar, and a roller guide.

FIG. 3 is a plan view showing an embodiment of the present invention.

FIG. 4 is a sectional view taken along line AA of FIG. 1;

[Explanation of symbols]

 1 Fixed part 2 Movable part 2a Female screw part 3 Roller guide 3a Guide base 4 Rest bar 4a Female screw part 5 Hydraulic cylinder 6 Screw shaft 6a Worm gear 6b Male screw part 7 Path line adjusting shaft 7a Pinion 8 Shift screw shaft 8a Worm gear 9 Pinion shaft 9b Bevel gear 10 Shift adjustment shaft 10a Bevel gear 12 Drive device 12a Drive device 13 Position detection device 13a Position detection device 14 Position control calculation device 15 Electromagnetic switching valve unit 16 Hydraulic cylinder R Rolling roll

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Akira Katsuo 3-2-Shiomidai, Shichigahama-cho, Miyagi-gun, Miyagi Prefecture In (56) References Actual Open Flat 2-22206 (JP, U) Actual Open Sho 63-133806 (JP, U)

Claims (3)

(57) [Scope of utility model registration request] 1. A fixed part attached to a rolling mill housing, a movable part held by the fixed part, a pass line adjusting mechanism for adjusting the position of the movable part in the pass line direction, and a roller guide. A guide shift mechanism for adjusting the position according to the rolling roll caliber is provided, and the pass line adjusting mechanism is rotatable on both upper and lower sides of the fixed portion and is axially supported in a direction orthogonal to the axis of the rolling roll. And a screw shaft provided with a worm gear, a pass line adjusting shaft provided rotatably on the fixed part and provided with a pinion that meshes with the worm gear, and a pass line adjustment shaft provided on the movable part, The guide shift mechanism includes a male screw portion provided on each screw shaft and a female screw portion that meshes with the screw shaft. Yes and supported in a direction parallel to,
A shift screw shaft provided with a worm gear, a pinion that interlocks with the worm gear via transmission means, and a shift adjustment shaft rotatably supported by a movable portion, and each of the shift screw shafts described above. And a guide base for fixing a roller guide to the rest bar, and a guide bar for fixing the roller guide to the rest bar. 2. The rest bar according to claim 1, wherein the guide base of the roller guide is attachable / detachable with a hydraulic cylinder for fixing the roller guide, and the roller guide is provided on the rolling roll side by a hydraulic cylinder for adjusting the front / rear direction. A guide shift device capable of being pushed in or pulled out from a rolling roll side. 3. The path line adjusting mechanism, the guide shift mechanism, the hydraulic cylinder for fixing the roller guides, and the hydraulic cylinder for front-rear adjustment according to claim 1 or 2 for position control provided with a drive device and a position detector. A guide shift device characterized in that positioning control is possible at a required position controlled by a computing device.