JPS6113124Y2 - - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a vertical rolling mill.

In a vertical rolling mill, there is a drive device for the left and right vertical rolls at the top, so when replacing the rolls, the rolls cannot be pulled out upwards like in an open-head horizontal rolling mill. Therefore, in the past, after moving the vertical rolling mill horizontally, both vertical rolls were pulled out.
It takes a lot of effort.

Therefore, the present invention provides a vertical rolling mill from which only both vertical rolls can be easily removed.

An embodiment of the present invention will be described below based on the drawings. Reference numeral 1 denotes a trolley disposed on a rail 2; numeral 3 denotes a stand frame disposed at an appropriate position on the trolley 1; and a pedestal 3d disposed between the lower U-shaped frame 3b and the carriage 1, and has an opening 4 on one side thereof. 5,
Reference numeral 6 denotes left and right vertical rolls, and roll jocks 8 and 9 that rotatably support the shafts of the rolls 5 and 6 via bearings 7 are connected to the U-shaped frames 3a and 3.
b, each is supported so that it can only move horizontally. Reference numeral 10 denotes an opening/closing door disposed in the opening 4 of the stand frame 3, which includes a pair of upper and lower T-shaped portions 1.
0a, a connecting rod 10b that connects both T-shaped portions 10a to each other, and a groove 11 that is fixed to the side surface of each T-shaped portion 10a and has both sides marked with an arrow A in a groove 11 formed in the inner circumferential surface of the opening 4. , a slide portion 10c slidably inserted in directions B, and a lifting fitting 10d fixed to the upper T-shaped portion 10a and the slide portion 10c. A pair of guide rails 12 extend laterally from directly below the stand frame 3 through below the opening 4, and are arranged and fixed on the machine frame 13. 14 is a wheel disposed on the lower surface of each vertical roll 5, 6 and in contact with each guide rail 12;
Reference numeral 15 denotes a door fixing device which includes a block 16 fixed to the side surface of the roll chock 8 of the left vertical roll 5 and having an inclined side surface, and a block 16 arranged movably in the directions of arrows A and B on the side surface of the slide portion 10c. a wedge portion 17 which is provided and has an inclined side surface that can be rolled away from the inclined side surface of the block 16;
A threaded rod 19 rotatably supported by a support plate 18 fixed to the slide portion 10c and whose threaded portion is screwed into a screw hole of each wedge portion 17;
It consists of a drive motor 21 which is fixed to a bracket 20 of the shaped portion 10a and whose drive shaft is connected to the threaded rod 9 via a coupling. When the motor 21 is operated to rotate the threaded rod 19 in one direction, each wedge portion 17 moves in one direction and comes into pressure contact with each block 16, pushing the opening/closing door 10 and pushing both vertical rolls 5 and 6. Can be fixed.
Further, when the threaded rod 19 is rotated in the other direction, each wedge portion 17 moves in the other direction and is separated from each block 16, and the fixation of the opening/closing door 10 and the vertical rolls 5, 6 is released. 22 is a roll axial direction adjustment device, 23 is a crane, and P is a paraffin. Note that the drive device located above both vertical rolls 5 and 6 is not shown.

The procedure for exchanging the rolls 5 and 6 will be explained based on the above configuration. First, in a rollable state shown by a solid line in the figure, the left vertical roll 5 is slightly moved in the direction of arrow C using a roll spacing adjustment device (not shown). Then, the block 16 is separated from the wedge portion 17, and the fixed state of the opening/closing door 10 and both vertical rolls 5, 6 is released. Next, the lower end of the wire rope 24 hanging from the crane 23 is fixed to the lifting fitting 10d, and the rope 24 is rolled up to lift the opening/closing door 10 and bring it to a predetermined location. Next, when the left vertical roll 5 is pulled in the direction of arrow D by the crane 23, this left vertical roll 5
4, the guide rail 12
1, and is guided out of the stand frame 3 through the opening 4 as shown by the imaginary line in FIG.
Next, this left vertical roll 5 may be lifted up by the crane 23 and replaced. The right vertical roll 6 may also be replaced using the same procedure. Next, when the vertical rolls 5 and 6 are inserted into the stand frame 3 and assembled, the steps described above may be reversed.

As described above, according to the present invention, the rolls can be easily replaced by simply removing the opening/closing door and moving each vertical roll along the guide rail. In addition, by operating the drive motor of the door fixing device and pressing the wedge against the block, it is possible to fix the opening/closing door and both vertical rolls, and to maintain sufficient strength to suppress the pressure during rolling. can be supported.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which FIG. 1 is a partially cutaway front view, FIG. 2 is a partially cutaway side view, and FIG. 3 is a plan view. 3...stand frame, 4...opening, 5,
6...Vertical roll, 8,9...Roll check, 1
0... Opening/closing door, 10d... Lifting fittings, 12
... Guide rail, 14 ... Wheel, 15 ... Door fixing device, 23 ... Crane, 24 ... Wire rope.

Claims (1)

[Scope of utility model registration request] An opening is formed in the side surface of a stand frame that rotatably supports the left and right vertical rolls so that both the vertical rolls can be pulled out horizontally, and an opening/closing door for both the vertical rolls is provided in the opening in the vertical direction. A door fixing device is provided for removably disposing the door and fixing the door, and a guide rail for horizontal movement of the vertical roll extending from directly below the stand frame to the side through below the opening is provided. A fixing device is fixed to the side surface of the roll chock of one of the vertical rolls, and the block has an inclined side surface, and the fixing device is disposed on the side surface of the opening/closing door so as to be movable in the vertical direction. a wedge that can be press-contacted and separated from a side surface; a threaded rod that is rotatably supported on the opening/closing door and whose threaded portion is screwed into a screw hole of the wedge; and a drive motor that rotates the threaded rod. A vertical rolling mill characterized by having a configuration.