JP2011062744A - Roll changing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a roll changing device with which different rolls in the shape of a chock are pulled out and changed with one device without changing arms (pawls). <P>SOLUTION: A roll shaft is mounted to the chock of a roll stand through the chock and the chock and the roll shaft are changed integrally along the axial direction of the roll shaft. Changing rails 3 which are parallel in the direction of the roll shaft to the roll shaft are laid down on this side of the roll stand S, a changing truck 10 is installed on the changing rails and a T-shaped tool viewed from above is attached just above a portion where the roll shaft of the chock T is penetrated and projected. In the changing truck, two arms 11 are provided so that the roll shaft end is held with a first pawl 11b which is provided on its top through an arm attaching part 12 on the top plate provided on the upside of a truck body and a second pawl 11c is provided on the upside of the first pawl. A mechanism biased in the closing direction and the pawl opening and closing part 15 with which the two arms are expanded are provided between the two arms. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an apparatus for exchanging rolls by pulling or pushing rolls of a roll stand in parallel on a rail.

  In the conventional apparatus, a rail is laid in a direction perpendicular to the roll axis in front of the roll stand, and a movable carriage is installed on the rail, and an exchange rail parallel to the roll axis direction is laid on the movable carriage. An exchange carriage was installed on the exchange rail. In this exchange cart, on the top plate provided on the upper side of the cart body, the two arms are provided so as to sandwich the roll shaft end with the first claw provided at the tip thereof via the arm mounting portion. A spring urged in the closing direction was provided between the two arms, and a claw opening / closing portion was provided to expand the two arms. And the nail | claw was put on the groove | channel provided in the chock cap of the roll shaft end, and the roll was drawn out and pushed in.

Japanese Utility Model Publication No. 7-23043

  However, since a chock cap provided with a groove cannot be used for a roll with a rotary joint, the conventional exchange device cannot be pulled out with a claw. Therefore, it is necessary to attach a dedicated arm every time the roll is changed, and it takes time. In addition, in order to unify the chock shape, a lot of chock remodeling is required, which increases costs.

  An object of the present invention is to solve the above-mentioned problems and to provide a roll exchanging apparatus that enables rolls having different chock shapes to be pulled out and exchanged with one apparatus without changing an arm (claw).

  The problem-solving means of the present invention is such that a roll shaft is mounted on a chock of a roll stand via a chock, and the chock and the roll shaft are integrated and exchanged along the axial direction of the roll shaft. . An exchange rail parallel to the roll axis direction is laid on the roll axis before the roll stand, and an exchange carriage is installed on the exchange rail. A jig having a T-shape in plan view is attached immediately above a portion where the roll shaft of the chock projects and projects. In the exchange cart, on the top plate provided on the upper side of the cart body, two arms are provided via the arm attachment portion so that the roll shaft end is sandwiched by the first claw provided at the tip, A second claw is provided on the upper side of one claw, a mechanism biased in the closing direction is provided between the two arms, and a claw opening / closing part is provided to expand the two arms. .

  Further, it includes a mode in which the lock arms are bridged by the two arms in the closed state of the two arms.

  According to the present invention, rolls having different chock shapes can be pulled out and replaced with one device without changing the arm (claw).

It is a front view of one Example of this invention. It is a top view of FIG. FIG. 3 is an enlarged view of main parts of FIG. 2. It is Y4-Y4 sectional drawing of FIG. FIG. 4 is a sectional view taken along line Y5-Y5 in FIG. It is Y6-Y6 sectional drawing of FIG. FIG. 4 is a sectional view taken along line Y7-Y7 in FIG. It is a principal part expansion perspective view of FIG. It is a principal part expansion perspective view of FIG.

An embodiment of the present invention will be described below with reference to the drawings.
1 and 2, in the roll exchanging apparatus of the present invention, a roll shaft A is mounted on a chock T of a roll stand S via a chock, and the chock and the roll shaft are integrated along the axial direction of the roll shaft. Exchanged.

  In front of the roll stand S, a moving rail 1 is laid in a direction orthogonal to the roll axis A with respect to the roll axis A, a moving carriage 2 is installed on the rail, and an exchange rail 3 parallel to the roll axis direction on the moving carriage. Is installed, and an exchange cart 10 is installed on the exchange rail 3.

  4 and 9, a jig 4 having a T-shape in plan view is attached immediately above a portion of the chock T where the roll shaft A protrudes.

  3 to 6 and 9, in the exchange cart 10, the top plate 10 b provided on the upper side of the cart body 10 a is provided with two arms 11 through the arm attachment portion 12 and the arm guide member 13. The roll shaft end is sandwiched between the first claws 11b provided in A second claw 11c is provided above the first claw, and a spring 14 biased in the closing direction is provided between the two arms. Further, a claw opening / closing part 15 is provided so as to expand the two arms.

  In the claw opening / closing part 15, an operation rod 15a is rotatably supported by the first and second support columns 15c and 15d in the middle of the two arms. A lever 15b is provided at the end of the operation rod 15a. A cam plate 15e is fixed on the roll shaft side in the vicinity of the second support column 15d. This cam plate is an elliptical plate, and an operating rod 15a is fixed through the center of the cam plate. The contact piece 15f contacting the cam plate is fixed inside.

  3 and 7, in the closed state of the two arms, a claw lock portion 16 is provided in which the lock arm 16a is bridged between the two arms. In the claw lock portion 16, a mounting shaft 16b is provided on the side of the arm in parallel with the operation rod 15a, and a base end portion of the lock arm 16a is slidably supported by the arm, and a clamp lever 16c is provided at the base end portion. Is installed. Reference numeral 16d denotes a shaft support.

The operating state will be described above.
In FIG. 1, FIG. 2, FIG. 8, the lower roll axis A is pulled out by the first device B1. The exchange cart 10 approaches the roll shaft end and stops. At this time, the two first claws 11b, 11b hit the cap A1 at the shaft end, open against the pulling force of the spring 14, and fit into the groove of the cap. Next, when the exchange cart 10 moves backward, the roll shaft A is integrated with the chock T and is pulled out by being supported by the rail R of the stand S with the wheels. Similarly, the upper roll shaft is pulled out by the second device B2.

  Next, in FIG. 9, in the case where the rotary shaft A2 is provided at the end of the roll shaft, the operation is as follows. The exchange cart 10 approaches the roll shaft end and stops. At this time, the two second claws 11 c, 11 c hit the jig 4 of the chock T, open against the pulling force of the spring 14, and fit into the groove of the jig 4. Next, when the exchange cart 10 moves backward, the roll shaft A is integrated with the chock T and is pulled out by being supported by the rail R of the stand S with the wheels.

  The present invention is not limited to the above-described embodiments and embodiments, but includes various modifications without departing from the spirit and scope of the claims.

  The present invention is used for a roll exchanging apparatus.

A Roll shaft A1 Cap A2 Rotary joint S Roll stand T Chock R Rail 1 Moving rail 2 Moving carriage 3 Exchange rail 4 Jig B1 First exchange device B2 Second exchange device 10 Exchange cart 10a Main body 10b Top plate 11 Arm 11a Main body 11b 1st claw 11c 2nd claw 12 Arm attachment part 13 Arm guide member 14 Spring 15 Claw opening / closing part 15a Operation rod 15b Lever 15c 1st support | pillar 15d 2nd support | pillar 15e Cam board 15f Contact piece 16 Claw lock part 16a Lock arm 16b Mounting shaft 16c Clamp lever 16d Shaft support

Claims (2)

A roll shaft is attached to a chock of a roll stand via a chock, and the chock and the roll shaft are integrated and exchanged along the axial direction of the roll shaft,
An exchange rail parallel to the roll axis direction is laid on the roll axis in front of the roll stand, and an exchange carriage is installed on the exchange rail.
A jig having a T-shape in plan view is attached immediately above the portion where the roll shaft of the chock penetrates and protrudes,
In the exchange cart, the top plate provided on the upper side of the cart body is provided with two arms sandwiching the roll shaft end with the first claw provided at the tip thereof via the arm mounting portion, A second claw is provided on the upper side of one claw, a mechanism for biasing in the closing direction is provided between the two arms, and a claw opening / closing portion is provided to expand the two arms. Roll changer. The roll exchanging apparatus according to claim 1, further comprising a lock arm that is bridged by the two arms in the closed state of the two arms.

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