JP2831238B2 - Work guide device for rolling mill - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a work guide device for a rolling mill which is disposed at an inlet and an outlet of a rolling roll and guides a rolled material.

[0002]

2. Description of the Related Art As shown in, for example, FIGS. 8 and 9, a work guide device 82 of a rolling mill 81 disposed on an H-section steel rolling line includes a pair of upper and lower webs at an inlet and an outlet of a rolling roll 83. Guides 84 and 85 are pass lines P
Are arranged in the vertical position. Below this web guide 85
The lower web guide support member 86 that supports is disposed so as to be able to move up and down via a pair of left and right vertical screw shafts 87,
Pin receiving groove 89 formed in lower web guide support member 86
And a lower guide support pin 90 that is fitted to and supports the lower web guide 85. Also, upper web guide 8
The lower web guide supporting member 91 for supporting the upper web guide 84 is vertically movable via the vertical screw shaft 87, and is fitted into a pin hole 92 formed in the upper web guide 84 to suspend the upper web guide 84. A support pin 93 for lower support is provided so as to be freely retractable by a retracting device (not shown). A balance cylinder device 94 for suspending and supporting the upper web guide 84 is disposed on the rolling roll 83 side of the upper web guide 84. And the upper and lower web guides 84, 85
, Respectively, is in sliding contact with the rolling roll 83.

[0003]

By the way, in the conventional work guide device, when the size of the rolled H-section steel is changed,
At the same time when the rolling roll 83 is replaced, the upper and lower web guides 8
The upper and lower web guides 84 and 85 are also exchanged.
However, since it is a separate body, there has been a problem that the attaching and detaching work and the adjusting work are troublesome. Further, in the conventional work guide device 82, fine adjustment in the direction of the pass line P was possible by shims 95 and 96 provided on the support pins 90 and 93, but fine adjustment in the vertical and width directions was performed. This is because the precision requirements for the product were not so high. However, in recent years, outside constant H
As seen in mold steel, the dimensions are subdivided and precision is required, and the shape of the workpiece to be cast is devised to produce a wide variety of products. Therefore, the position of introduction into the rolling roll 91 also needs to be adjusted, and the position of the upper and lower web guides 84 and 85 needs to be finely adjusted. However, there is a problem that the conventional work guide device 82 cannot cope with this.

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems, and enables fine adjustment of a guide member to a pass line, which can be quickly changed and adjusted, and which enables rolling and molding of various kinds of high-precision products. An object of the present invention is to provide a work guide device for a rolling mill that can be used.

[0005]

In order to solve the above-mentioned problems, a configuration of the present invention comprises a plurality of guide members positioned at least at one of an inlet and an outlet of a rolling roll in advance corresponding to a work to be rolled. A guide box having a vertical direction adjustment device, a front-rear direction adjustment device, and a width direction adjustment device for adjusting the position of the guide box is provided.

[0006]

According to the above construction, a guide box having a guide member pre-positioned therein is used, and the guide box is replaced when the guide member is replaced, and the guide box is also moved and finely adjusted for position adjustment. As a result, it is possible to quickly perform the work of exchanging the guide member in accordance with the change of the work, improve the operation rate of the rolling line, easily adjust the position thereof, and obtain a high-precision product. Can be roll-formed.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of a work guide device for an H-section steel rolling mill according to the present invention will be described below with reference to FIGS.

As shown in FIGS. 1 and 2, the first embodiment is supported at the entrance and exit of a rolling roll 1 on a pass line P via a vertical adjusting device 2 so as to be movable up and down. A guide frame 5 movably supported by the width direction adjusting device 3 and fixable by the first fixing device 4 is disposed. A slide table 7 whose front-rear position can be adjusted by the slide base 6 is provided, and a guide box 9 provided with an upper web guide 8A and a lower web guide 8B (guide member) whose intervals have been adjusted is detachably arranged on the slide base 7. And a second fixing device 10 for fixing the guide box 9 to the guide frame 5.

A vertical support jack 13 of the vertical direction adjusting device 2 is attached to the center of the upper part of the guide support frame 12 provided at the front and rear of the rolling roll frame 11, and the vertical support jack 12 is disposed at the side. Drive motor 14
The guide frame 5 is connected and supported by the output shaft 13a, which is driven by the drive shaft 13a, so that the guide frame 5 can be displaced in the width direction by a pin and a connecting rod 15 in the direction of the pass line P.

[0010] Tapered receiving cotters 16R, 16L whose lower portions are widened are attached to both side surfaces of the rectangular cylindrical guide frame 5, and are mounted on the guide support frame 12 via lifting guides 17R, 17L. The width adjusting cotter 18R and the fixing cotter 18L, which are supported to be able to move up and down, are in contact with each other. The width adjusting cotter 18R is configured to be connected to an output shaft of a width adjusting jack 20 driven by a width adjusting driving motor 19 and driven to move up and down. Jack 20, width adjustment cotter 1
The width direction adjusting device 3 is configured by the 8R and the receiving cotter 16R. The fixing cotter 18L is
The output shaft of the fixing cylinder device 21 is connected, and the first fixing device 4 is configured in cooperation with the width direction adjusting device 3.

The slide table 7 arranged at the bottom of the guide frame 5 has grooves formed on both sides thereof.
The guide pins projecting from the front side are slidably guided in the direction of the pass line P.
Is configured to drive the slide table 7 via a rack and pinion mechanism. That is, a front-rear drive motor 23 for driving the worm 22 to rotate is provided below the guide frame 5, and the drive shaft 25 can be rotated via a worm gear 24 with which the worm 22 meshes. A pinion 26 provided on the drive shaft 25 is provided with a pass line P on the bottom surface of the slide base 7.
The slide table 7 is slid in the direction of the pass line P by the front / rear drive motor 23 via the worm gear mechanisms 23 and 24 and the rack and pinion mechanisms 26 and 27. The position of the guide box 9 mounted on the vehicle can be adjusted in the front-rear direction. A pair of left and right positioning pins 28 project from the upper surface of the slide table 7 and are fitted into positioning holes 29 formed in the bottom of the guide box 9 to be positioned at a predetermined position.

On the upper part of the slide frame 5,
A pair of box fixing cylinder devices 30 constituting the second fixing device 10 are provided, and a fixing block 30a attached to the lower end of the output rod is pressed against the upper surface of the guide box 9 to move the guide box 9 and the slide table 7 together. It can be fixed at a fixed position.

The guide box 9 is, as shown in FIG.
The upper and lower web guides 8A and 8B for guiding the work to be guided, that is, the web of the H-section steel W, are support members 31A and 31B.
, And a pair of left and right flange guides 32R, 32L for guiding the flange of the H-shaped steel W are provided so as to be freely adjustable toward and away from each other via screw type adjusters 33R, 33L. This upper and lower web guide 31
A and 31B and flange guides 33R and 33L used are adjusted in advance in accordance with the dimensions of the H-shaped steel W to be guided before mounting. 34 is a hanging hole formed on both sides of the guide box 9 and 35 is a pin
This is an auto coupler fitted to the coupler connector 36 of FIG.

Next, replacement work of the work guide device of the first embodiment will be described. (1) Box fixing cylinder device 30 of the second fixing device
To release the fixation of the guide box 9 and the slide base 7.

(2) The front / rear drive motor 23 is driven to rotate the pinion 26, thereby moving the slide table 7 forward (or backward) and pulling it out to a virtual line position (FIG. 1). (3) The guide box 9 is lifted and carried out by engaging the hooks of the guide transport manipulator installed in the factory with the suspension holes 34 of the guide box 9.

(4) Upper and lower web guides 8A and 8B and flange guide 32 corresponding to the dimensions of the following H-section steel W in advance.
The guide box 9 in which the positions R and 32L are set is carried into the slide table 7, and the positioning pins 28 are inserted into the positioning holes 29.
And placed at a fixed position.

(5) The slide table 7 is moved rearward (or forward) by the front-rear drive motor 23, and the guide box 9 is pulled into the guide frame 5. (6) The slide table 7 is finely adjusted by the front-rear drive motor 23 to be positioned at a predetermined position, and the fixing cylinder device 30 of the second fixing device 10 is advanced to move the guide box 9 and the slide table 7 to the guide frame 5. Fix it. Further, the fixing cylinder device 21 of the first fixing device 4 is contracted to pull up the fixing cotter 18L and guide frame 5
Release the clamp. Next, the vertical adjustment drive motor 14 is driven to operate the vertical adjustment jack 13, and the guide frame 5 is moved up and down to finely adjust the vertical position of the guide box 9. Further, the width adjustment drive motor 19 is driven to operate the width adjustment jack 20, and the width adjustment cotter 18R is moved up and down to finely adjust the left and right positions of the guide frame 5.

The front and rear drive motor 23, the vertical adjustment drive motor 14, and the width adjustment drive motor 1
Numerals 9 each include a rotation angle detector, and are driven and controlled by a control computer of the rolling mill based on a detection signal of the rotation angle detector, so that the position adjustment of the guide box 9 is automated.

According to the above embodiment, the upper and lower web guides 8
A, 8B and the fine adjustment of the flange guides 32R, 32L can be performed via the guide box, and the introduction position to the rolling roll 1 or the derived position from the rolling roll 1 is finely adjusted according to the shape of the H-section steel W. And high-precision products can be roll-formed. In addition, since the upper and lower web guides 8A and 8B and the flange guides 32R and 32L whose positions have been adjusted in advance are replaced together with the guide box 9, the replacement and adjustment can be performed in a short time, and the operation rate of the rolling line can be reduced. Can be improved.

Further, since the guide box 9 is carried in / out via the slide table 7 and the slide table 7 is moved in the direction of the pass line P via the rack and pinion mechanism, fine position adjustment in the direction of the pass line P is possible. Becomes Furthermore, in the width direction adjusting device 3 and the first fixing device 4, since the receiving cotters 16R and 16L, the width adjusting cotter 18R and the fixing cotter 18L are employed, fine adjustment is easy and a strong clamping force is obtained. In addition, the entire apparatus can be made compact particularly in the width direction, and does not interfere with other members or the adjacent rolling line.

Next, a second embodiment will be described with reference to FIGS. The same members as those in the conventional example are denoted by the same reference numerals, and description thereof is omitted. This work guide device
At the entrance and exit of the rolling roll 1, a guide frame 42 supported on the path line P so as to be able to move up and down by a vertical direction adjusting device 41 is arranged, and the guide frame 42 is slidable and detachable along the path line P. The guide box 44 disposed in the guide box 44 is provided so as to be movable in the direction of the pass line P by a detachable moving device 45 and to be adjustable in the front-rear position along the direction of the pass line P by a front-rear direction adjusting device 46. A width-direction adjusting device 47 for adjusting the position of the guide frame 42 by sliding the guide box 44 in the left-right direction, comprising the upper web guide 8A and the lower web guide B whose position has been adjusted, and fixing the guide box 44 to the guide frame 42. An apparatus 48 is provided.

The vertical direction adjusting device 41 includes a pair of screw shafts 51 erected on both right and left sides, and a vertical adjustment drive motor 52 disposed at the upper end of the screw shafts 51 for driving the screw shafts 51 to rotate. A pair of upper and lower female screw members 53 screwed to the screw shaft 51 are provided on both sides of the guide frame 42, respectively.

The guide frame 42 is formed with a box mounting hole 54 centered on the pass line P. At four corners of the box mounting hole 54, guide recesses 55 for guiding the four corners of the guide box 44 are provided. It is arranged in parallel with P.

The guide box 44 has a rectangular tube shape and is provided therein with upper and lower web guides 8A and 8B and a flange guide (not shown) whose positions have been adjusted in the same manner as in the first embodiment. A pair of left and right cotter blocks 56 project from the center of the upper surface and the lower surface of the guide box 44, respectively, and these cotter blocks 56 are formed in a trapezoidal shape in a side view with a front surface and a rear surface formed into a tapered surface.
At the front of the bottom surface of the guide box 44, a moving convex portion 57 with which the operating end of the detachable moving device 45 is engaged is provided. Further, at the front of the upper surface of the guide box 44, a width-direction adjusting bracket 59 is provided so that the horizontal shaft 58 of the width-direction adjusting device 47 can be inserted and removed from the front.

A detachable moving device 45 provided on the guide frame 42 includes a pair of left and right guide members 60 having a guide groove in the direction of the pass line P below the box mounting hole 54.
The movable concave portion 61 of the guide box 44 is detachably fitted into the movable block 61 which is guided by the
is formed, the piston rod of the detachable moving cylinder device 68 is connected to the movable block 61, and the guide box 44 is moved by the detachable moving cylinder device 68 through the movable block 61 along the guide recess 55 into the pass line P.
It is configured to move in the direction.

Front-rear adjustment device 46 and fixing device 48
Are the cotter blocks 56 on the upper and lower surfaces of the guide box 44.
The front and rear adjustment cotters 62 and the rear side clamping cotters 63 that sandwich the front and rear sides, the front and rear adjustment jacks 64 that vertically move the front and rear adjustment cotters 62, and the vertical and downward movement of the clamping cotters 63. And a cylinder device 65 for fixing the box. Therefore, the front-rear adjustment jack 64 is driven by a driving motor (not shown) to drive the front-rear adjustment cotter 6.
The cotter block 56 is raised and lowered to stop at a predetermined position, and further, the box fixing cylinder device 65 is advanced to move the clamp cotter 63 up and down. It can be sandwiched and positioned and fixed at a predetermined position in the front-rear direction.

In the width direction adjusting device 47, the width direction adjusting bracket 59 of the guide box 44 at the mounting position is engaged with the horizontal shaft 58 between the movable brackets 66, and is movable by the width adjusting motor 67 via the horizontal axis 58. By moving the bracket 66 in the width direction, the position can be adjusted by moving the guide box 44 in the width direction via the width-direction adjusting bracket 59. The space between the guide recesses 55 on the left and right is set wider than the width of the guide box 44 by an adjustment stroke.

Next, the work of replacing the work guide device will be described. (1) The box fixing cylinder device 65 is contracted to retract the stiffening clamp 63 to release the fixation of the guide box 44, and the front and rear adjustment jack 64 is operated to retract the front and rear adjustment cotter 62. Let it.

(2) The width adjusting motor 67 is driven to return the guide box 44 to the reference position. (3) The guide box 44 is moved to the reference position by driving the vertical adjustment drive motor 52 of the vertical direction adjustment device 41.

(4) The cylinder box 68 for attachment / detachment of the attachment / detachment / movement device 45 is contracted to pull out the guide box 44. (5) The guide box 44 is carried out using a crane or the like in the factory.

(6) Next, a new guide box 44 having upper and lower web guides 8A and 8B positioned corresponding to the dimensions of the H-section steel W to be rolled is carried in. (7) Then, the guide box 44 is inserted into the guide recess 5.
5, the moving convex portion 5 is engaged with the engaging concave portion 61a of the movable block 61, and the detachable moving cylinder device 68 is advanced to draw the guide box 44 to the mounting position.

(8) After adjusting the position of the guide box 44 by the width direction adjusting device 47, the front-rear direction adjusting device 46, and the vertical direction adjusting device 41, the guide box 44 is fixed by the clamping cotter 63 of the fixing device 48. .

Next, a third embodiment will be described with reference to FIGS. The third embodiment is different from the second embodiment in that the width direction adjusting device and the fixing device are changed. Since the other components have almost the same configuration, the same members are denoted by the same reference numerals and description thereof is omitted. .

The width direction adjusting device 71 includes a guide frame 4
2 includes a pair of left and right width direction adjusting jacks 72R and clamping cylinder devices 72L provided on both sides of the pass line P so as to face each other. Further, similarly to the second fixing device of the first embodiment, the fixing device 73 includes a pair of left and right box fixing cylinder devices 74 for pressing and fixing the guide box 44 from above. The front-rear direction adjusting device is also used as the attaching / detaching / moving cylinder device 68 of the attaching / detaching / moving device 46.

Although the above embodiment has been described with reference to the H-shaped steel, the present invention can be applied to not only the H-shaped steel but also other general rolled materials.

[0036]

As described above, according to the work guide apparatus for a rolling mill of the present invention, a guide box in which guide members are pre-positioned and used is used. Also, since the guide box can be moved and fine-adjusted, the work of changing the guide member accompanying the work change can be performed quickly, and the operation rate of the rolling line can be improved. The position can be easily adjusted, and a highly accurate product can be formed by rolling.

[Brief description of the drawings]

FIG. 1 shows a first work guide device of a rolling mill according to the present invention.
It is a side sectional view showing an example.

FIG. 2 is a front view of the work guide device.

FIG. 3 is a front partial sectional view showing a guide box of the work guide device.

FIG. 4 is a second view of the work guide device of the rolling mill according to the present invention.
It is a side sectional view showing an example.

FIG. 5 is a front view of the work guide device.

FIG. 6 shows a third work guide device of the rolling mill according to the present invention.
It is a side sectional view showing an example.

FIG. 7 is a front view of the work guide device.

FIG. 8 is a side sectional view showing a conventional work guide device.

FIG. 9 is a side view showing a conventional web guide.

[Explanation of symbols]

 P Pass line W H-shaped steel 1 Roll roll 2,41 Vertical adjustment device 3,47,71 Width adjustment device 4 First fixing device 5,42 Guide frame 6,46 Front and rear adjustment device 7 Slide table 8A Upper web guide 8B Lower web guide 9 Guide box 10 Second fixing device 12 Guide support frame 13 Vertical adjustment jack 14 Vertical adjustment drive motor 16R, 16L Receiving cotter 18R Width adjustment cotter 18L Fixed cotter 19 Width adjustment drive motor 20 Width adjustment jack 21 Fixing cylinder device 23 Front / rear drive motor 26 Pinion 27 Rack 30 Box fixing cylinder device 32R, 32L Flange guide 33R, 33L Screw type adjuster 48,73 Fixing device 51 Screw shaft 52 Vertical adjustment drive motor 56 Cotter block 59 Width Direction adjustment bracket 62 Front / back adjustment cotter 63 Clamping cotter 64 Front / back adjustment jar · The 65 box fixing cylinder device 66 movable bracket 67 width adjustment motor 68 detachably moving cylinder device 72 the width direction adjusting cylinder device 74 box fixed cylinder device

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Masaru Nagao 5-3-28 Nishikujo, Konohana-ku, Osaka-shi, Osaka Inside Hitachi Zosen Corporation (72) Inventor Yoshiya Uchida 6-1, Tsukamoto, Yodogawa-ku, Osaka-shi, Osaka No. 12 Inside Antom Industry Co., Ltd. (58) Field surveyed (Int. Cl. ⁶ , DB name) B21B 39/00

Claims (1)

(57) [Claims] At least one of an inlet and an outlet of a rolling roll, a guide box having a plurality of guide members positioned in advance corresponding to a work to be rolled is detachably arranged, and the position of the guide box is adjusted. A work guide device for a rolling mill, comprising a vertical adjustment device, a front-rear adjustment device, and a width adjustment device.