JPH1034224A - Guide device of rolling mill for wire, bar and bar stock - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the loss of time and to shorten the working time required to mechanical adjustment by enabling an guide device which is already provided on a rolling mill to be used as it is without changing and without being affected by variation in the size of a rolled stock. SOLUTION: This guide device is constituted by providing bars 3 in both bearing boxes of a rolling roll 2 in parallel to the rolling roll, providing rest bars 4 which are vertically movable in parallel to the rolling roll 2 in the inner side face parts of longitudinal frames 1A opposite both right and left sides in the width direction of a roll stand 1, fixing the rest bars 4 to the bars 3 with fastening bolts 7 so that the vertical connection interval is adjustable and attaching guides 6 for guiding materials to be rolled to these rest bars 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a guide device which is provided at an inlet side and / or an outlet side of a rolling roll in a rolling mill for wires, bars and strips and used to guide a material to be rolled.

[0002]

2. Description of the Related Art In a rolling mill for wires, bars and strips, a rolled material guide device is provided at an inlet side and / or an outlet side of a rolling roll as is well known. For example, as a typical prior art, Japanese Utility Model Laid-Open No. 57-76312 (No.
Example), Japanese Utility Model Application Laid-open No. Sho 58-111107 (second example),
Each of the devices disclosed in JP-A-133806 (third example) and JP-A-2-108506 (fourth example) can be cited.

[0003]

The first example is described as follows. In a clamping apparatus for a rolling mill guide for attaching and detaching a guide by crimping and releasing a guide body from the side of a base, a guide provided on one side of the base. A guide clamp device comprising a clamp head for crimping the main body, a screw shaft for moving the clamp head forward and backward by rotation, and a lever for rotating the screw shaft ", and a second example is a pair of upper and lower calipers (calibers). ), A guide member is fixed to the inside of the entry side and / or the exit side of the roll stand, and a rolled material guide is provided on the guide member. A guide device in which a rest bar to be installed is movably mounted by a driving means. "

Further, as shown in FIGS. 6 to 8, a third example is described as follows. “A guide rod 102 supported at both ends in parallel with a rolling roll 101, and supported at both ends in parallel with the guide rod 102. A screw rod 103, a rotor 104 screwed around the outer circumference of the screw rod 103 and moved in the longitudinal direction of the screw rod 103, a gear portion 105 formed on the outer circumference of the rotor 104, rod
102 and the screw rod 103 each have a through hole, and the rotor 10
A mounting base 106, which is rotatably mounted and supported movably in the longitudinal direction of the rods 102, 103;
And meshes with the gear 105 of the rotor 104,
Driving means 107 for rotating the rotor 104, and the rolling roll 10
1 in a direction substantially perpendicular to the longitudinal axis of the mounting table 10.
6, a guide 108 for guiding the material to be rolled, and a protective cover 109 which covers the guide rod 102 and the screw rod 103 and is extendable and contractible in the longitudinal direction. Easy to adjust the position of guide 108,
The use period of the screw rod 103 and the like is extended to simplify the management of the guide device.

A fourth example is shown in FIG. 9 and FIG. 10, in which a roll stand 202 is capable of moving in a direction perpendicular to the pass line PL in a line, rod, and strip rolling mill. A support stand 204 for movably supporting the guide member 203 in a direction parallel to the rolling roll 201 is provided in the roll stand 202, and a fixing base 205 for fixing the guide member 203 and a fixing means 206 for fixing the guide member 203 outside the roll stand 202 are provided. The guide device can reduce the work time when changing the roll and changing the roll.Especially, when changing the roll, only the shift of the roll stand 202 is sufficient, and when changing the roll, the roll stand 202 and the guide member 203 can be easily integrated. By being able to carry it in and out, it simplifies the work and prevents a drop in productivity.

[0006] Each of these conventional examples is based on the premise that the guide is replaced or the position is adjusted online each time the rolling size is changed, and the usefulness of the invention is recognized as such. However, when trying to apply to the size-free rolling method, which has been in the limelight as a new need, the replacement or position adjustment of the guide becomes indispensable every time the rolling adjustment is performed, and considerable workability and productivity are required. The problem of adverse effects is inevitable. To further explain this point, "Size-free rolling"
In other words, "rolling one roll mill to various sizes as it is without having to rearrange according to the size change" means that the rolls are not rearranged, but on the other hand,
Naturally, the size of the rolled material changes, and accordingly, it is necessary to change the size of the entrance and exit guides of the rolling mill, but in each conventional example, without changing the existing guides Since it is not possible to adapt to changes in the rolling size, it is necessary to replace guides online each time the size is changed, resulting in increased loss time and reduced productivity due to a longer rolling size changing time. In fact, there is still room for improvement.

The present invention has been made in order to solve such problems, and an object of the present invention is to provide an apparatus which is already installed in a rolling mill to which a size-free rolling method is applied. To reduce the time required for rolling stoppages and shorten the work time required for machine adjustments, thereby improving productivity To help.

[0008]

The present invention has the following configuration to achieve the above object. That is, the present invention is a guide device provided on the entrance side and / or the exit side of a rolling roll in a rolling mill for wires, bars and strips to guide a material to be rolled, and a bearing box on both sides of the rolling roll. A bar provided in parallel with the rolling roll axis and movable in the rolling direction at the same time as the bearing box, and parallel to the rolling roll axis with respect to the inner surface portions of the vertical frames opposed to the left and right sides in the machine width direction of the roll stand. And a rest bar fixed to the bar so as to be movable in the rolling direction and capable of adjusting a connection interval in the rolling direction, and a guide for rolling material guide attached to the rest bar. This is a guide device for rolling mills for wires, bars and strips.

The present invention is also a guide device provided on the entrance side and / or the exit side of a rolling roll in a rolling mill for wires, bars and strips for guiding a material to be rolled. The rest bar provided parallel to the rolling roll axis and movable in the rolling direction with respect to the inner surface of the vertical frame opposing the left and right sides of the direction, and connected eccentrically to the input shaft and the input shaft in an axis parallel to the input shaft. It has an output shaft part, is provided in pairs in the pass line direction and the machine width direction by extending the shaft in a direction perpendicular to the rolling roll axis at both left and right positions sandwiching the pass line, and the input shaft part is provided on the rest bar. Four eccentric shafts that are rotatably supported and two eccentric shafts that are fitted to the output shaft portions of two eccentric shafts that form a pair in the pass line direction and that are movably opposed to each other in the machine width direction. The movable guide mount and each movable 2 mounted respectively to de mount
Movable guide for guiding the material to be rolled, an input gear and 4
An output gear fitted to each input shaft portion of the eccentric shafts, and the rotation of the input gear is transmitted to the four eccentric shafts, so that the two movable guides are referenced to a pass line. A gear train that can be moved toward and away symmetrically and synchronously, and a rotation unit that rotates the input gear. It is.

According to the present invention, in the guide device of the rolling machine for lines, bars, and strips described in the preceding paragraph, the amount of movement of the rest bar in the rolling direction and the amount of rotation of the rotating means depend on the size of the material to be rolled. It is characterized in that it is adjusted in accordance with a predetermined relationship value between the reduction amount and the width.

[0011] The present invention is also a guide device provided at the entrance side and / or the exit side of a rolling roll in a rolling mill for wires, bars and strips to guide a material to be rolled. A bar provided in parallel with the rolling roll axis with respect to the bearing box and movable in the rolling direction at the same time as the bearing box, and a rolling roll axis with respect to the inner surface of the vertical frame opposed to the left and right sides in the machine width direction of the roll stand. And a rest bar fixed to the bar so as to be movable in the rolling direction and capable of adjusting the connection interval in the rolling direction, a guide for guiding a material to be rolled attached to the rest bar, and an input. A shaft portion and an output shaft portion eccentrically connected to the input shaft portion so as to be parallel to the input shaft portion, and extending the shaft in a direction perpendicular to the rolling roll shaft at both left and right positions sandwiching the guide, so as to extend in a pass line direction and a machine width direction. And the input shaft part is fitted to the output shaft part of four eccentric shafts rotatably supported by the rest bar and the two eccentric shafts forming a pair in the direction of the pass line. Two movable guide mounts which are provided so as to be movably opposed to each other in the machine width direction, and are mounted on the respective movable guide mounts so as to be slidable in the machine width direction along the guide plane of the guide. Including two movable guides for guiding the material to be rolled, an input gear and an output gear fitted to each input shaft portion of the four eccentric shafts,
A gear train capable of symmetrically and synchronously moving the two movable guides symmetrically and synchronously with respect to a pass line by transmitting rotation of the input gear to the four eccentric shafts; And a rotating device for rotating the gears. A guide device for a rolling mill for wires, bars, and strips.

According to the present invention, in the rolling mill for wires, bars and strips described in the preceding paragraph, the amount of rotation of the rotating means is:
It is characterized in that it is adjusted in accordance with a width value related to the amount of reduction determined in advance by the size of the material to be rolled.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION
An embodiment will be described below with reference to the accompanying drawings.
FIG. 1 is a front view showing a main part structure of a rolling mill according to an embodiment of the present invention, FIG. 2 is a plan view thereof, FIG. 3 is a right side view similarly showing a partial cross section, and FIG. FIG. 6 is a plan view of a guide device corresponding to FIG.

Referring to FIGS. 1 to 4, a guide device according to a first aspect of the present invention includes a bar 3, a rest bar 4, and a guide 6 for guiding a material to be rolled. It is provided on one or both of the entrance side and the exit side of the rolling roll 2 in the rolling mill for the bar and the strip, and is used as a guide device for guiding the rolled material while positioning it on the pass line PL. The bar 3 is provided on a pair of bearing boxes 5 attached to the left and right sides of both the fixed-side and movable-side rolling rolls 2 while maintaining the roll axis parallel to the roll axes. In this case, when the bar 3 moves together with the bearing housing 5 in the up-down direction, the members 3 of the roll stand 1, in particular, the vertical frame 1 A standing upright and opposite to the front, rear, left and right sides. It is important to position and provide such that they do not come into contact with each other.
And a groove 8 having a rectangular cross section is formed in the rear surface portion.
For example, the bar 3 is provided in the window of the roll stand 1 so that its longitudinal direction is parallel to the roll axis by means such as fitting a bar-shaped bar 3 that fits into the roll.

The rest bar 4 extends between the inner surface portions of the vertical frame 1A facing the left and right sides of the roll stand 1 in the machine width direction in parallel with the axis of the rolling roll 2 and movably in the rolling direction. Provided. Specifically, vertically extending rails 9 are fixed to the inner side surface of the vertical frame 1A opposed to both the left and right sides, respectively, and are formed in a male / female engagement with the rails 9 and slidable, for example, in a channel shape. The slide pedestals 19 are fitted together, and the pair of slide pedestals 19 are provided with, for example, an angle-shaped rest bar 4 and are integrally installed by welding. The guide 9 is guided by the rail 9 so as to be movable in the rolling direction while maintaining the parallelism with the axis of the rolling roll 2.

[0016] Rest bar 4 provided in this manner
Are fixed to the bar 3 integrally so as to be capable of adjusting a connection interval in a rolling direction, and are horizontally held. In this case, as a means for fixing the rest bar 4 to the bar 3, for example, a pair of fixing bolts 7 as a connecting member is used.
The fixing bolts 7, 7 are formed by cutting bolts or the like formed by threading screws over substantially the entire length, and four nuts are screwed into each end at two ends. By tightening the nut 3 to the bar 3 and the other two nuts to the rest bar 4, the bar 3 and the rest bar 4 can be assembled so that the connection interval can be adjusted.

The guide 6 is a plate-like guide member for guiding a material to be rolled (not shown) to the pass line PL in the rolling direction. Fixed. In the illustrated embodiment, an example is shown in which the flat plate-shaped guide 6 is disposed horizontally and fixed, but in addition to this, a pair of groove-shaped guide members are provided on both the left and right sides or the upper and lower sides of the material to be rolled. The pass line PL may be disposed opposite to each other at both left and right positions or both upper and lower positions of the pass line PL and fixed to the rest bar 4 so as to surround the pass line PL.

A rolling roll 2 is driven by a rolling device (not shown).
Is reduced in the direction indicated by the thick arrow in FIG. 1, the bearing housing 5 of the rolling roll 2 moves integrally in the reduction direction. At this time, the bar 3 also moves by a reduction amount in the reduction direction integrally with the bearing housing 5. For this reason, the rest bar 4 naturally moves similarly. As a result, the guide 6 attached to the rest bar 4 is centered on the pass line PL and is accurately positioned in the rolling direction.

The gap A between the guide 6 and the material to be rolled passing through the pass line PL is adjusted in advance offline by the fixing bolts 7,7. Regardless of the size of the material to be rolled, the gap A can be kept constant and the material to be rolled can be arbitrarily changed by the amount of reduction. Here, the reason why the rest bar 4 is integrally fixed to the bar 3 so that the connection interval in the vertical direction can be adjusted will be clarified by the following description.

That is, with reference to FIG. 5, the diameter of the rolling roll 2 in the case of the size-free rolling method is changed from the diameter D at the time of a new product (see FIG. 5A) to the diameter d ( FIG.
(B) with the progress of rolling, and if the gap A between the guide 6 and the material to be rolled is kept constant, the dimension B between the bearing housing 5 and the guide surface of the guide 6 (see FIG. ) Changes). On the other hand, since the bar 3 is fixed to the bearing housing 5, the relationship between the two remains unchanged and constant. Therefore, the relationship between the rest bar 4 and the bearing box 5 is adjusted by causing the change in the dimension B to be performed in advance in an off-line manner based on the function of adjusting the connection interval by the fixing bolts 7, 7.

As described above, the guide size of the guide 6 for guiding the material to be rolled is automatically adjusted according to the size of the material to be rolled while using the guide device provided in the rolling mill as it is. As a result, the operation of changing the guide device for each rolling size is omitted, so that the loss time of the rolling stop is greatly reduced, and the productivity is improved.

The guide device according to a second aspect of the present invention comprises a rest bar 4 and four eccentric shafts 10A, 10B, 10C, 10D.
And two movable guide mounts (11, 11), two movable guides (12, 12) for guiding the material to be rolled, a gear train, and rotating means (18). Like the guide device, it is used as a guide device for guiding the rolled material while positioning it on the pass line PL.

The rest bar 4 is movable between the inner surface portions of the vertical frame 1A facing the left and right sides of the roll stand 1 in the machine width direction in a direction parallel to the axis of the rolling roll 2 and in the vertical direction, ie, in the rolling direction. Is provided. Specifically, the guide bar has a structure similar to that of the rest bar 4 of the guide device according to claim 1 (see the content of the paragraph [0015]). Although not shown, the movement in the rolling direction is performed by a hydraulic actuator. The fixing at a predetermined level may be performed by a clamping device 22 using a hydraulic system or the like.
Thus, the slide pedestal 19 may be sandwiched and fixed to the rail 9.

Four eccentric shafts 10A, 10B, 10C, 10D
Have the same structure, and have an input shaft portion 10I and an output shaft portion 10O eccentrically connected to the input shaft portion 10I.
And These eccentric shafts 10A to 10D are arranged two at each of the left and right positions in the machine width direction with the pass line PL interposed therebetween, and form pairs in the pass line PL direction and the machine width direction to form shafts in the rolling direction. The input shaft 10I is extended and attached to the rest bar 4, and each input shaft 10I is rotatably supported by the rest bar 4 via a bearing 21 so as to stand upright on the rest bar 4.

The two movable guide mounts 11, 11 are formed on a perforated pedestal having two vertical holes penetrating through a rectangular parallelepiped steel block, and the two vertical holes pass through. The lower rest bar 4 is fitted over the two output shaft portions 10O of the two eccentric shafts 10A and 10B and the two output shaft portions 10O of the two eccentric shafts 10C and 10D in the line PL direction.
At a position opposing the path line PL directly above the path line PL. Two movable guide mounts 1 provided in this manner
By rotating the eccentric shafts 10A, 10B, 10C, and 10D, the eccentric shafts 1 and 11 perform horizontal eccentric rotational motion, and move toward and away from the path line PL at both left and right positions.

Two movable guides 12 for guiding the material to be rolled,
Numeral 12 is formed in the guide for width adjustment in this embodiment, and is integrated with the inner side surfaces of the two movable guide mounts 11, 11 by, for example, a connection that fits into a "groove" and a "groove". Each movable guide 1 is mounted so that the longitudinal direction is parallel to the pass line PL and walls are formed on both left and right sides.
2 is fixed to the movable guide mount 11.

The gear train includes one input gear 13,
The input gear 13 is composed of four output gears 14A, 14B, 14C, 14D and three gears 15, 16, 17, and the input gear 13 is rotatably supported by the rest bar 4. And is provided directly below the rest bar 4 so as to be integrally rotatable with the input shaft 22. The four output gears 14A, 14B, 14C, 14D have four eccentric shafts 10A, 10A.
B, 10C, and 10D are respectively fitted to the corresponding input shaft portions 10I, and each input shaft portion 10I is located directly below the rest bar 4.
Is provided so as to be able to rotate integrally with the Three gears 15,1
Numerals 6 and 17 are for transmitting rotational power, and the gear 15 is rotatably supported by a portion directly below the rest bar 4 so as to mesh with the input gear 13.
Are input gears 13 and two output gears 14A, 14B.
The gear 17 is rotatably supported by a portion directly below the rest bar 4, and includes a gear 15 and two output gears 14.
C, 14D and rotatably supported by a portion directly below the rest bar 4.

In the gear train formed as described above, if the input gear 13 is rotated clockwise in FIG. 4, for example, the rotation is transmitted through the gears 15, 16, 17 to the four output gears 14A. , 14B, 14C, and 14D, and in this case, the rotation is transmitted at a constant rotational speed and in a reverse rotation direction. Therefore, two movable guides 1 for guiding the material to be rolled
The movable guides 2 and 12 move symmetrically and synchronously with the movable guide mounts 11 and 11 symmetrically and synchronously with respect to the pass line PL. Therefore, by setting the number of rotations of the input gear 13, the two movable guides 12, 12
, That is, the width dimension can be expanded or narrowed around the pass line PL.

The turning means 18 is a mechanism for rotating the input gear 13 and is realized by a ratchet handle attached to the input shaft 22 in this embodiment. That is, the input gear 13 rotates only in the clockwise direction by operating the ratchet handle, for example.
Thus, the inner width dimension (indicated by dimension B in FIG. 1) between the two movable guides 12, 12 can be periodically and repeatedly adjusted.

In the guide device having the above-described configuration, the rest bar 4 is fixed to a predetermined position corresponding to the pass line PL from the point where the amount of reduction and the amount of width expansion are known in advance according to the size of the material to be rolled. At the same time, the inner width dimension C between the two movable guides 12 may be set to a required value by operating the rotating means 18, and thus the size of the material to be rolled can be reduced while using the existing guide device as it is. Accordingly, the guide widths of the movable guides 12, 12 for guiding the material to be rolled can be easily adjusted on-line, and the work of changing the guide device for each rolling size is omitted, resulting in a loss time of rolling suspension. Is greatly reduced and productivity is improved.

In the guide device according to the second aspect of the present invention, it is possible to use an actuator such as a hydraulic motor instead of the ratchet handle as the rotating means 18, and to adjust the inner width dimension between the movable guides 12, 12. Can be easily performed by remote control in conjunction with the positioning of the rest bar 4. Further, when performing remote reduction, the reduction amount at this time is detected, and the positioning of the rest bar 4 and the movable guides 12, 1 are determined based on the relationship value between the reduction amount and the width input to the control device.
It is also possible to automatically adjust the inner width between the two.
In this guide device, the movable guides 12, 12
Is not limited to a flat plate, but is a paragraph number [0017].
The guide member having a groove shape as described in the above section may be attached to each of the movable guide mounts 11 so that the material to be rolled can be sandwiched and surrounded from both right and left sides. Good.

[0032]

Embodiments of the present invention will be described below with reference to the accompanying drawings. The embodiment shown in FIGS. 1 to 4 is an example of a guide device according to claim 4 of the present invention,
, Rest bar 4, guides 6 for guiding the material to be rolled, 4
The two eccentric shafts 10A, 10B, 10C, 10D, two movable guide mounts 11, 11, two movable guides 12, 12 for guiding a material to be rolled, a gear train, a rotating means 18, And is used as a guide device for guiding a rolled material while positioning it on the pass line PL, similarly to the guide device according to claim 1 and claim 2.

The structures and functions of the bar 3, the rest bar 4, and the guide 6 for guiding the material to be rolled are the same as those described in the paragraphs [0014] to [0019]. The explanation is omitted here to avoid
It goes without saying that the guide 6 is located above or below the material to be rolled on the pass line PL and performs a guiding action in the rolling direction.

The four eccentric shafts 10A, 10B, 10C, 1
0D, two movable guide mounts 11 and 11, two movable guides 12 and 12 for guiding the material to be rolled, a gear train,
The structure and function of the rotating means 18 are the same as those described in the paragraphs [0024] to [0030], and the description is omitted to avoid duplication.
Reference numerals 2 and 12 are provided so as to be slidable in the machine width direction along the upper surface which is the guide plane of the guide 6. As described above, the pair of guides 6 and 6 positioned vertically and the pair of movable guides 12 and 12 positioned left and right surround the material to be rolled on the pass line PL in a square duct shape to ensure reliable positioning. A guiding action is provided below. That is, the position adjustment in the rolling direction and the width direction perpendicular to the rolling direction are collectively performed, semi-automatically using remote control or fully automatic by a control system equipped with detecting means such as a position detector, a rolling-down amount detector, and the like. It is possible to perform it.

[0035]

The present invention is embodied in the form described above and has the following effects.

A bar is provided for the bearing box on both sides of the rolling roll so as to be movable in the rolling direction in parallel with the rolling roll axis and simultaneously with the bearing box. Since a rest bar is provided parallel to the rolling roll axis with respect to the inner side surface portion and movable in the vertical pressing direction, and the rest bar is fixed to the bar so that the connection interval in the vertical direction can be adjusted, a cover attached to the rest bar is provided. Since the size (position) of the guide for rolling material guide is automatically adjusted according to the size of the material to be rolled, it is not necessary to change the guide for each rolling size, and the loss time of rolling stop is greatly reduced. In addition, labor costs for adjustment can be reduced.

A movable guide for guiding the material to be rolled is mounted on each movable guide mounting base fitted to two eccentric shafts forming a pair in the pass line direction, and the four eccentric shafts are synchronized by a gear train. By rotating the movable guides symmetrically and synchronously with respect to the path line, the two guides are moved symmetrically and synchronously. Can be easily adjusted on-line in the width direction, and the effect of reducing the loss time and the labor cost of the machine adjustment can be further improved, thereby further improving the productivity.

[Brief description of the drawings]

FIG. 1 is a front view showing a main part structure of a rolling mill according to an embodiment of the present invention in a partial cross section.

FIG. 2 is a plan view corresponding to FIG.

FIG. 3 is a right side view showing a partial cross section corresponding to FIG. 1;

FIG. 4 is a plan view of a guide device corresponding to FIG. 3;

FIG. 5 is a view for explaining the main point of the adjustment of the rest bar position of the guide device according to the present invention.

FIG. 6 is a plan view of a conventional guide device.

FIG. 7 is a front view showing the state of attachment.

FIG. 8 is a side view corresponding to FIG.

FIG. 9 is an overall front view of another conventional example.

FIG. 10 is a side sectional view taken along line AA of FIG. 8;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Roll stand 1A ... Vertical frame 2 ... Rolling roll 3 ... Bar 4 ... Rest bar 5 ... Bearing box 6 ... Guide for guiding rolling material 7 ... Fixing bolt 8 ... Groove 9 ... Rail 10A-10D ... Eccentric shaft 10I ... Input shaft 100 O Output shaft 11 Movable guide mount 12 Movable guide 13 Input gears 14A to 14D Output gears 15 to 17
Gears 18 ... Rotating means 19 ... Slide base 20 ... Clamping device 21 ... Bearing 22 ... Input shaft A ... Gap (between rolled material and guide) C ... Inner width PL ... Pass line

Claims (5)

[Claims] 1. A guide device which is provided at an inlet side and / or an outlet side of a rolling roll in a rolling mill for wires, bars and strips and guides a material to be rolled. On the other hand, in parallel with the rolling roll axis, and a bar provided so as to be able to move in the rolling direction simultaneously with the bearing box, and parallel to the rolling roll axis with respect to the inner surface of the vertical frame facing the left and right sides in the machine width direction of the roll stand. And a rest bar that is provided movably in the rolling direction and is fixed to the bar so that the connection interval in the rolling direction can be adjusted, and a guide for guiding a material to be rolled attached to the rest bar. Guide device for rolling mills for wires, bars and strips. 2. A guide device which is provided at an entrance side and / or an exit side of a rolling roll in a rolling mill for wire rods, bars and strips and guides a material to be rolled, wherein the roll stand has left and right sides in the machine width direction. A rest bar provided parallel to the rolling roll axis and movable in the rolling direction with respect to the inner surface of the vertical frame opposed to both sides, an input shaft part and an output shaft part eccentrically connected to the input shaft part in an eccentric manner. With the axis extending in the direction perpendicular to the rolling roll axis at both left and right positions sandwiching the pass line, provided in pairs in the pass line direction and the machine width direction, and the input shaft part is rotatable with the rest bar Two movable guides mounted so as to be fitted to the output shafts of four eccentric shafts supported by the shaft and two eccentric shafts forming a pair in the pass line direction and movably opposed in the machine width direction. And each movable guide mounting base Each of the two movable guides for guiding the material to be rolled, and the output gears respectively fitted to the input gears and the four input shafts of the four eccentric shafts, the rotation of the input gears. A gear train capable of moving the two movable guides symmetrically and synchronously with respect to a path line by being transmitted to four eccentric shafts, and rotating the input gear. A guide device for a rolling mill for wires, bars and strips, comprising a rotating means. 3. The amount of movement of the rest bar in the rolling direction and the amount of rotation of the rotating means are adjusted according to the relationship between the amount of rolling and the width determined in advance depending on the size of the material to be rolled. Guide device for rolling mills for wire, rods and strips. 4. A guide device which is provided at an entrance side and / or an exit side of a rolling roll and guides a material to be rolled in a rolling mill for wires, bars and strips, and is provided on bearing boxes on both sides of the rolling roll. On the other hand, in parallel with the rolling roll axis, and a bar provided so as to be able to move in the rolling direction simultaneously with the bearing box, and parallel to the rolling roll axis with respect to the inner surface of the vertical frame facing the left and right sides in the machine width direction of the roll stand. And a rest bar fixed to the bar so as to be movable in the rolling direction and capable of adjusting a connection interval in the rolling direction, a guide for rolling material guide attached to the rest bar, an input shaft portion, and An output shaft portion eccentrically connected to the input shaft portion in parallel to the input shaft portion. The shaft extends in the direction perpendicular to the rolling roll shaft at both left and right positions sandwiching the guide, and the pair extends in the pass line direction and the machine width direction. And the input shaft part is fitted to the output shaft part of two eccentric shafts rotatably supported by the rest bar and the two eccentric shafts forming a pair in the pass line direction, and is mounted in the machine width direction. And two movable guide mounts movably opposed to each other, and two movable guide mounts respectively attached to the movable guide mounts and slidably provided in the machine width direction along the guide plane of the guide. It includes a movable guide for guiding the material to be rolled, an output gear that is fitted to each input shaft of the input gear and the four eccentric shafts, and the rotation of the input gear is transmitted to the four eccentric shafts. A gear train capable of moving the two movable guides symmetrically and synchronously with respect to a path line, and a rotating means for rotating the input gear. Characteristic lines, bars,
Guide device for strip rolling mill. 5. A rolling device for a wire, a rod, or a strip according to claim 2, wherein the amount of rotation of said rotating means is adjusted in accordance with a width value related to a reduction amount predetermined according to the size of the material to be rolled. Machine guide device.