JPH0615810U - Guide shift device - Google Patents

Abstract

(57) [Summary] [Purpose] To make it easy to adjust the path line of the roller guide, and to easily adjust the guide shift of the roller guide to the rolling roll hole type. [Structure] A movable part 2 is held by a fixed part 1 attached to a rolling mill housing, and a pair of upper and lower screw shafts 6 meshing with a female screw part 2a of the movable part are provided, and a shift screw is rotatably provided on both left and right sides of the movable part. A shaft 8 is provided, and the roller guide 3 is fixed to the rest bar 4 meshing with the shift screw shaft, and the rotation of the screw shaft aligns the roller guide with the pass line of the rolling roll through the movable portion. The rotation of the shaft 8 moves the rest bar up and down to align the roller guide with the caliber of the rolling roll.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a guide shift device for quickly performing a shift operation of a roller guide accompanying a change of a caliber of a vertical rolling mill and accurately aligning the roller guide with a required caliber.

[0002]

[Prior art]

 As a device that quickly guide-shifts the roller guide according to the caliber of the rolling roll, a worm provided on the mounting base is meshed with the screw rod provided between the housings of the rolling mill via the rotor and connected to this worm. By rotating the handle, the mounting base is moved to the required 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, the actual application). 63-133806).

[0003]

[Problems to be solved by the device]

 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.

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 is in the process of rolling. Since the head of the guide vibrates, it is impossible to maintain an accurate pass line and reduce the dimensional accuracy of the rolled material.

Secondly, since the roller guide does not have a function of adjusting the path line of the roller guide, the path line of the roller guide cannot be easily adjusted.

Thirdly, when the outlet roller guide is guide-shifted, the entry portion of the roller guide is once pulled out from the die of the rolling roll because the entry portion of the roller guide is inserted into the die of the rolling roll. Although it is necessary to perform the guide shift after the guide shift and insert the side entry into the rolling roll hole die after the guide shift is completed, the guide shift function is not provided.

The object of the present invention is that the guide head of the roller guide does not go down, the head of the roller guide does not vibrate during rolling, an accurate pass line can be maintained, and the rolled material Is to prevent the deterioration of the dimensional accuracy of. Another object of this invention is to simplify the path line adjustment of the roller guide. Yet another object of the present invention is to allow easy guide shift adjustment of the roller guide to a roll roll hole type.

[0008]

[Means for Solving the Problems]

 The 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 roller fixed to the movable part by adjusting the position of the movable part in the pass line direction. A pass line adjustment mechanism for aligning the guide die with the pass line of the rolling roll, and a rest bar provided on the movable part can be shifted according to the rolling roll caliber, and can be fixedly or detachably attached to this rest bar. And a guide shift mechanism for aligning the existing roller guide with the rolling roll caliber.

The pass 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. In this way, the pinion is screwed, and the pass line adjustment shaft that is rotatably supported on the fixed part is meshed with the male screw part 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 a 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, a bevel gear is provided at an end portion thereof, and a transmission shaft is rotatably supported by a movable portion, and a bevel gear that meshes with the bevel gear of the above-mentioned transmission means. And a shift adjusting shaft that is rotatably supported by the movable portion, and the male screw portion of each of the shift screw shafts described above is meshed with the female screw portion, and the fixing means, for example, the movable portion of the hydraulic cylinder. It is composed of a rest bar that can be fixed to the 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 provided with a drive device and a position detector. Positioning control may be made possible at a desired position controlled by the position control arithmetic unit.

[0012]

[Action]

 To adjust the position of the roller guide in line with the pass line, rotate the pass line adjustment shaft provided in the fixed part, and the entire movable part held in the fixed part will be aligned with the pass line according to the direction of rotation. The roller guide fixed to this movable part 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 is made movable by the fixing means, and then the shift adjustment shaft provided in the movable part is rotated. All that is required is that the movable part moves within the fixed part in accordance with the direction of rotation, so that the roller guide held by this rest bar is guide-shifted in accordance with the rolling roll caliber.

[0014]

【Example】

 Hereinafter, the present invention will be described in detail with reference to the drawings. The guide shift device of the present invention comprises a fixed part 1, a movable part 2, and a movable part 2 whose position is adjusted in a pass line direction orthogonal to the axis of the rolling roll R so that the roller guide 3 has a hole shape of the rolling roll R. In order to adjust the path line adjusting mechanism for aligning with the line and the rest bar 4 provided on the movable part according to the caliber of the rolling roll R, and aligning the roller guide 3 with the caliber of the rolling roll R. Equipped with a guide shift mechanism.

As shown in FIGS. 1 to 3, a movable part 2 is held on a fixed part 1 fixed to a rolling mill housing, and a rest bar 4 is moved by a hydraulic cylinder 5 on this movable part. It is fixed as possible. 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 configuration 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 1. 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 (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 configuration of the guide shift mechanism will be described. As shown in FIGS. 1 and 3, on the movable part 2, a total of three shift screw shafts 8 consisting of one right and two left are rotatable and axially supported in a direction parallel to the axis of the rolling roll R. There is. A transmission shaft 9 and a shift adjustment shaft 10 are rotatably supported by 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. 3 is provided with pinions 9a and 9a at one end and the middle, and a bevel gear 9b at the other end, and the transmission shaft on the right side is provided with the pinion 9a at one end and the bevel gear at the other end. 9b is provided. The shift adjusting shaft 10 is provided with bevel gears 10a, 10a at both ends. The worm gear 8a of the shift screw shaft 8 meshes with the pinion 9a of the transmission shaft 9 as shown in FIG. 3, 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. Further, an adjusting shaft 11 for moving and adjusting the roller guide back and forth 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 hydraulic cylinder for fixing the roller guide 3 to the rest bar 4. Reference numeral 16 denotes a positioning control at a required position controlled by a position control arithmetic unit 14 including a pass line driving device 12, a shift driving device 12a, a pass line position detector 13, and a shift position detector 13a. It is possible.

Positioning control is performed by storing a required number of shift position data in advance in the position control arithmetic unit 14 in accordance with the caliber position of the rolling roll R, and designating the shift position data number. The position is controlled to be positioned. 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 the shift position data is stored in a digital switch (not shown) or the like provided in the position control arithmetic unit 14 and set in the position control arithmetic unit. A caliber selection switch (not shown) provided on the keypad is used to indicate any one of the caliber numbers 1 to 4 to shift it to a desired position. In FIG. 1, reference numeral 15 indicates an electromagnetic switching valve unit, 1-dotted line indicates an electric wire set, and 2-dotted line indicates a hydraulic pipe set.

The operation of adjusting the hole shape of the roller guide 3 in accordance with the pass line of the rolling roll R will be described. 1 and 2, when the pass line adjusting shaft 7 provided in the fixed portion 1 is rotated, the rotational force is transmitted to the pinions 7a, 7a and the worm gears 6a, 6a, and the pair of upper and lower screw shafts 6 rotate. However, since the female screw portion 2a of the movable portion 2 is meshed with the male screw portion 6b of the screw shaft, the entire movable portion 2 is moved in accordance with the pass line according to the rotation direction of the screw shaft. The roller guide 3 fixed via the rest bar 4 is adjusted for the pass line.

An operation for 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 part 2 so as to be movable, and then the shift adjusting shaft 10 provided in the movable part is rotated, the rotational force is changed. It is transmitted to the gear 10a, the bevel gear 9b of the transmission shaft 9, the pinion 9a, and the worm gear 8a, so that a total of three right and left shift screw shafts 8 rotate, and the male screw portion of the shift screw shaft is provided on the bearing portion 4b of the rest bar 4. The rest bar moves up and down in the fixed part 1 according to the rotation direction of the shift adjusting shaft 10 because the female screw part 4a is engaged with the roller guide 3 held by the rest bar. The guide is shifted according to the caliber.

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

[0025]

According to the present invention, the movable part held by the fixed part is positionally adjusted in the pass line direction, and the hole shape of the roller guide fixed to the movable part is positioned on the pass line of the rolling roll. The path line adjusting mechanism for adjusting and the rest bar provided on the movable part can be shifted according to the rolling roll caliber, and the roller guide fixedly or detachably attached to this rest bar is aligned with the rolling roll caliber. The guide head for the roller guide does not go down and the head of the roller guide does not vibrate during rolling, maintaining an accurate pass line. It is possible to prevent deterioration of the dimensional accuracy of the rolled material, and to adjust the pass line of the roller guide and the roller guide to the hole shape of the rolling roll. Id shift adjustment is easy.

[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 cross-sectional view taken along the line AA of FIG.

[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 arithmetic unit 15 Electromagnetic switching valve unit 16 Hydraulic cylinder R Rolling roll

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Akira Katsuo 3-2-48 Shiomidai, Shichigahama-cho, Miyagi-gun, Miyagi Prefecture (72) Tatsuya Eda Tatsuya Eda Cold 13-13-12 cold, Nishi-ku, Sapporo, Hokkaido in the factory

Claims (3)

[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. A screw shaft provided with a worm gear, and a pass line adjusting shaft provided rotatably on the fixed part and provided with a pinion meshing with the worm gear, and 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 is interlocked 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. A guide shift device comprising: a rest bar which is provided so as to be fixed to the movable part, and a guide base for fixing a 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.