JP3323786B2 - Roller changer for roller leveler - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention belongs to the technical field of a roller level changer for a roller leveler for correcting the shape of a thick plate or a thin plate.

[0002]

2. Description of the Related Art As is well known, a roller leveler includes a pair of upper and lower roll units in which a plurality of rolls are incorporated in a roller leveler body in parallel. In this method, the shape of a thick plate, a thin plate, or the like is corrected by alternately bending a plate, a thin plate, or the like. By the way, the rolls of these upper and lower roll units are worn by continuation of operation, and therefore need to be repaired sequentially. When repairing rolls, pull out the upper and lower roll units from the roller leveler body,
The pulled out upper and lower roll units are separately lifted and temporarily placed by an overhead crane or a ground placing heavy machine. In addition, since the upper roll unit is normally oriented with the roll facing downward, it is hung together with a crane so that the roll faces upward, or the crane or the like is placed on a temporary placing table.
The roller is rotated by 80 ° and then moved to another temporary placing table to repair the roll, and is assembled into a roll unit and assembled into the roller leveler body. Of course, if the amount of wear of the rolls of the upper and lower roll units exceeds a preset reference value, the accuracy of straightening a thick plate or a thin plate will be deteriorated, and a new roll will be used.

Usually, such upper and lower roll units are heavy objects of several tens tons to several hundred and several tens tons, respectively. For example, when rotating the upper roll unit, a crane is used. However, the danger increases when run-out occurs or when the load suddenly increases. In addition, after the roll repair
If the crane is used when restacking the lower roll units, the rolls of the upper and lower roll units may come into strong contact with each other, causing flaws. In addition, it is necessary to pay close attention to positioning, and there is a problem to be solved in that replacement requires a long time.

[0004] Various proposals have been made to reduce the time required for replacing a roll unit. For example, Japanese Utility Model Laid-Open Publication No. 3-57416 (conventional example 1) states that
FIG. 12 of a partial sectional view showing a universal joint spindle support device.
As shown in the figure, the universal joint coupling 5U of the upper roll is supported by the support device 6 for the upper roll, and the universal joint 5L of the lower roll is supported by the support device 7 for the lower roll disposed below the support device 6 for the upper roll. I do. These supporting devices 6, 7 are provided with beams 11U, L on which bearings 10U, L for receiving the coupling 5 are projected.
The worm jacks 12U, L for raising and lowering the beam, and the motors 14U, L for driving the worm jacks via the power transmission mechanisms 13U, L, respectively.
By penetrating the 0L support through the upper roll beam 11U, the vertical position of the upper and lower couplings 5U, L can be individually adjusted. The universal joint coupling 5′U of the hold-down roll is installed close to the coupling 5U of the upper roll on the entrance side and the exit side, and is supported by the upper roll support device 6 via the elevation adjustment device 9. I have. It has been proposed that the lifting / lowering adjusting device 9 includes a support 15 for receiving the coupling 5′U of the hold-down roll, and a worm jack 16 for raising and lowering the support with a handle 17.

Therefore, according to the universal joint spindle support device of the roller leveler according to the prior art 1, when the upper and lower roll units are pulled in, the support devices 6 and 7 are first operated to set the shaft end core of the roll and the roll free end. Before aligning the hole core of the coupling 5 of the joint spindle and inserting the roll shaft end into the coupling, the elevating device 9 sets the shaft end core of the hold-down roll and the cup of the universal joint spindle 3 'for the hold-down roll. The center of the hole of the ring 5 'is finely adjusted and aligned, and the roll shaft end is inserted into the coupling. Even when the vertical position of the hold-down roll changes due to a change in the roll diameter of the roll, centering can be performed quickly and easily.

Japanese Patent Application Laid-Open No. 54-118374 (conventional example 2) discloses a longitudinal sectional view of a roller reversing device shown in FIG.
As shown in FIG. 3, the roller frame 1 laterally pulled out of the leveler housing is hung by a crane with a wire rope 10 and the bearing 4 is externally fitted to the rotating shafts 2 and 3 on the gantry 9.
And the roller frame 1 is turned over via pawl clutches 5 and 6 by a worm speed reducer 7 provided on a frame 9. The reason why the worm speed reducer 7 is used to rotate the roller frame 1 is to prevent the rotation of the roller frame 1 inverted for repair.

[0007]

According to the "roller leveler universal joint spindle support device" according to the first prior art and the "roller frame reversing device for leveler" according to the second prior art, the time required for exchanging rolls can be reduced. It is useful as it is. However, in the conventional example 1, the horizontal pulling of the roller unit does not use the pull-out device, and the upper / lower roll unit that has been rolled out needs to be separately lifted by an overhead crane or a ground-based heavy machine, Although the centering can be easily performed, it is not always sufficient in terms of the roll exchange work efficiency. Further, in the conventional example 2, although the roller frame is mechanically rotated, it is necessary to lift the roller frame separately by an overhead crane or a ground-based heavy machine, which is not always necessary from the viewpoint of safety and improvement of the roll exchange work efficiency. Not enough.

Accordingly, it is an object of the present invention to be able to extract, assemble and transport the upper and lower roll units without using an overhead crane or the like and to turn over the upper roll unit. It is an object of the present invention to provide a roller unit exchanging device for a roller leveler which can improve the efficiency of the exchanging operation.

[0009]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problem, and therefore, in order to solve the above-mentioned problem, a roller unit exchanging apparatus for a roller leveler according to claim 1 of the present invention. The means adopted by the unit is to pull out a pair of upper and lower roll units each having a plurality of parallel rolls from the roller leveler main body, and to assemble the unit withdrawal / incorporation device into the main body, and the upper and lower roll units.
Reciprocates along a vertical path provided in parallel with the roll,
A unit conveying device provided with lifting means of the push-up type which individually lift each upper and lower roll units, the present
Provided in the unit lead-built apparatus body, and the lateral moving base for the lower roll unit in which the lower roll unit which has been conveyed in the previous SL unit transport apparatus is placed, than said transverse movable carriage for the lower roll unit provided on the outer side away from the body
It is a horizontal moving base for the upper roll unit upper roll unit is placed which has been conveyed by the unit transporting apparatus, from the main body than the lateral moving base for the upper roll unit
It is characterized by comprising a unit rotating device provided on the outer side at a distance and rotating the upper roll unit mounted on the upper roll unit mounting table, and a unit rotation preventing device for preventing rotation of the upper roll unit.

[0010] In order to solve the above problem, a roll leveler roll unit exchanging apparatus according to a second aspect of the present invention employs a pair of upper and lower roll units each having a plurality of parallel rolls. Reciprocating along a unit path that is pulled out from the unit and assembled into the main unit, and a vertical path provided in parallel with the rolls of the upper and lower roll units, and individually moves the upper and lower roll units up and down. A unit transport device having a lifting device of a push-up type, and a unit transport device reciprocating along an inner traverse path between a unit support position of the unit transport device and a repair position in a laterally outward direction orthogonal to the traverse path; A lower roll unit and a lower roll unit for transferring the lower roll unit to the unit transport device. Is provided at a position more distant from the main body, reciprocates along the outer traverse path between the unit support position of the unit transport device and a repair position in the lateral direction orthogonal to the traverse path, and moves upward from the unit transport device. The upper roll unit lateral moving device that receives the roll unit and transfers it to the unit transport device, and the upper roll unit provided outside the repair position of the upper roll unit lateral moving device and supported by the upper roll unit lateral moving device. A unit rotation device that rotates freely and reversibly, and a unit rotation prevention device that is provided outside the repair position of the upper roll unit lateral movement device and prevents the rotation of the upper roll unit supported by the upper roll unit lateral movement device And a device.

According to a third aspect of the present invention, there is provided a roller leveler roll unit exchanging apparatus according to the second aspect of the present invention.
The inner and outer traversing passages extend on both sides in a direction orthogonal to the traversing passages, the inner traversing passage has two lower roll unit traversing devices, and the outer traversing passage has two upper rolls. It is characterized in that a unit lateral moving device is provided.

The means adopted by the roller unit exchanging device of the roller leveler according to claim 4 of the present invention is as follows.
Or the roller unit exchanging device for a roller leveler according to any one of the three items, wherein the lifting / lowering means provided in the unit transport device engages with the upper / lower roll units to cause these upper / lower roll units to engage with each other. It is characterized by comprising a lifting claw that individually raises and lowers, a screw jack that pushes up the lifting claw, and a rotational force transmission mechanism that transmits the rotation of the claw lifting motor to the screw jack and causes the screw jack to expand and contract.

According to a fifth aspect of the present invention, there is provided a roller unit exchanging apparatus for a roller leveler, wherein:
In roll unit exchanging apparatus roller leveler according to any one term of 2, 3 or 4, wherein Tategyodori
A stop positioning metal fitting provided near the road , and a pair of synchronously openable and closable positioning arms provided on the unit transport device for holding the stop positioning metal fitting and adjusting the shift of the stop position of the unit transport device. Is provided.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a roll unit exchanging apparatus for a roller leveler according to a first embodiment of the present invention will be described with reference to FIG. 1 showing an overall plan view thereof, and a front view of a unit conveying apparatus for conveying upper and lower roll units. FIG. 2, FIG. 3 of a side view of the unit transfer device, FIG. 4 of a plan view of the unit transfer device, FIG. 5 of a detailed view of part A in FIG. 3, and description of a side configuration of the lower roll unit lateral movement device FIG. 6, FIG. 7 illustrating a side view of the upper roll unit lateral moving device, FIG. 8A illustrating a front view of the unit rotating device, and FIG. b) and FIG. 9 of the front view of the unit anti-rotation device
(A) and FIG. 9 (b) of a side view of the unit rotation preventing device.
Will be described sequentially with reference to FIGS.

First, a schematic configuration of a roll unit exchanging device of a roller leveler will be described with reference to FIG. 1. This roll unit exchanging device 1 should be repaired with a plurality of rolls R arranged in parallel. On a pair
Roller leveler 10 for lower roll units 101 and 102
0, and a unit pull-out / incorporating device 10 to be described later, in which the upper and lower roll units 101 and 102 after the repair are assembled into the roller leveler main body.
And the roll R of the upper and lower roll units 101 and 102
A pair of rails 2 and 2 which are vertical passages provided in parallel with
Reciprocate along the upper and lower roll units 101,
A unit transport device 20 having a pair of left and right first raising / lowering claws 23 and second raising / lowering claws 24 for individually raising and lowering each of the 102 is provided.

Further, between the unit support position of the unit transfer device 20 and the repair position in the laterally outward direction orthogonal to the rails 2 and 2, reciprocation along a pair of inner side shift bases 3 and 3 which is an inner traverse passage. To receive the lower roll unit 102 from the unit transport device 20,
A lower roll unit lateral moving device 30 to be described later, which is to be delivered to the unit transport device 20; and a unit support position and a rail provided at a position further away from the roller leveler main body than the lower roll unit lateral moving device 30 The unit transport device 20 reciprocates along a pair of outer side shift bases 4, 4 which are outer traverse paths, between the repair positions on the outer side in the horizontal direction orthogonal to 2, 2.
And an upper roll unit lateral moving device 40 having a configuration to be described later, which receives the upper roll unit 101 from the printer and transfers the upper roll unit 101 to the unit transport device 20.

Further, an upper roll provided at an outer position on the tip end side of the rails 2, 2 and at an intermediate position in the width direction of the rails 2, 2 and supported by an upper roll unit lateral moving device 40. The unit 101 is provided at a position outside the repair position of the unit rotating device 50 and the upper roll unit lateral moving device 40, which will be described later, and is supported by the upper roll unit lateral moving device 40. A unit rotation preventing device 60 configured to prevent rotation of the upper roll unit 101 will be described later.

First, the unit pull-out / incorporation device 10
Is not shown because it has a very general configuration, but the upper and lower roll units 101 and 102 are
A unit mounting table provided with a rolling surface on which rollers provided on the upper roll unit roll and a guide for preventing positional deviation in the left-right direction when the unit mounting table is pulled out and assembled, and an anti-roller leveler of the unit mounting table The roll unit pulling winch and the roll unit assembling winch provided on the 100 side, and the portion fed from the roll unit pulling winch passes above the unit mounting table and is wound by the upper and lower roll units 101,
A pull-out rope for pulling out 102 and a portion fed from a winch for assembling the roll unit pass through the lower side of the unit mounting table, are inverted by sheave, and are assembled by winding and incorporating the upper and lower roll units 101 and 102. It is composed of an inlay rope.

The connection and disconnection of these pull-out / incorporation ropes to / from the roll unit are performed manually. Of course, it is possible to employ a mechanism for automatically connecting these pull-out / incorporation ropes to the roll unit and releasing the connection. However, since the upper and lower roll units 101 and 102 need only be replaced once every two to three months, the manual operation method is used in consideration of the replacement frequency of the upper and lower roll units 101 and 102 and the automation cost. Things.

The unit transfer device 20 is configured as shown in FIGS. That is, a plurality of driving wheels 21a which roll on the rolling surfaces of the pair of rails 2 and 2 and are rotatably driven forward and reverse by a traveling electric motor 22 with a brake via a chain 22a, and Frame-shaped cart 2 having a gate-shaped cross section
1 is provided. Inside the lower part of the frame-shaped trolley 21,
The upper roll unit 1 projects in the opposite direction.
01, a pair of first lifting claws 23 for engaging the horizontal grooves provided on both sides in the movement direction of the thick plate, the thin plate, etc., to raise and lower the upper roll unit 101;
A pair of second lifting claws 24 are provided to engage the horizontal grooves provided on both sides of the thick plate, thin plate, etc. in the movement direction of the lower roll unit 102 to move the lower roll unit 102 up and down.

The first lifting claw 23 is operated by a first lifting claw operating mechanism 25 described later. The first lifting claw operating mechanism 25 includes a claw lifting electric motor 25a provided on an upper surface of an upper beam of the frame-shaped carriage 21 and a two-axis output type reduction gear 25b driven by the claw lifting electric motor 25a. When,
A pair of upper horizontal rotating shafts 25c, 25c protruding in a direction opposite to the speed reducer 25b, and upper rotating force transmitters 25d, 25d for transmitting the rotation of the upper horizontal rotating shafts 25c, 25c to the vertical rotating shafts 25e, 25e. 25d, screws provided at lower positions of the frame-shaped trolley 21 and on lower beams on both sides in a direction perpendicular to the traveling direction, and lifting the lower surface of the receiving plate 23a provided at the upper part of the first lifting claw 23 A lower rotational force transmitter 25f that transmits the rotation of the vertical rotation shafts 25e, 25e to the jack 25h via the lower horizontal rotation shafts 25g, 25g.

The second lifting claw 24 is operated by a second lifting claw operating mechanism 26 described later. The second lifting claw operating mechanism 26 includes a claw lifting electric motor 26 a provided on the upper surface of the upper beam of the frame-shaped carriage 21, and a two-axis output type reduction gear 26 b driven by the claw lifting electric motor 26 a. When,
A pair of upper horizontal rotation shafts 26c, 26c protruding in a direction opposite to the speed reducer 26b, and upper rotation force transmitters 26d, 26d for transmitting the rotation of the upper horizontal rotation shafts 26c, 26c to the vertical rotation shafts 26e, 26e. 26d, a screw provided at the lower position of the frame-shaped trolley 21 and on the lower beam on both sides in a direction perpendicular to the running direction, and lifting the lower surface of the receiving plate 24a provided on the upper part of the second lifting claw 24 A lower rotational force transmitter 26f for transmitting the rotation of the vertical rotation shafts 26e, 26e to the jack 26h via the lower horizontal rotation shafts 26g, 26g. As is well understood from the above description, the second lifting claw operating mechanism 26
Has exactly the same configuration as the first lifting claw operating mechanism 25.

Accordingly, the unit transport device 20 is moved by the driving of the traveling electric motor 22, and the unit transport device 20 is connected to the upper roll unit 101 and the lower roll unit 102 which are pulled out in a stacked state. When it moves to the position, the first lifting claws 23, 23 are provided inside the grooves provided on both sides of the upper roll unit 101, and the second lifting claws 24, 24 are provided on both sides of the lower roll unit 102. The first lifting claw 23, the first lifting claw 23, is driven by the claw lifting electric motors 25a, 26a.
23 and the second lifting claws 24, 24 rise through the screw jacks 25h, 26h to lift the upper roll unit 101 and the lower roll unit 102. Then, when the unit transfer device 20 moves to a predetermined place and stops, the claw elevating electric motors 25a and 26a
The first lifting claws 23, 23 and the second lifting claws 24, 24 are lowered by reverse driving of the upper roll unit 10.
1 and the lower roll unit 102 are lowered.

The unit transport device 20 and the rail 2
A stop positioning device 27 having a stop position shift adjusting function for stopping the unit transport device 20 at a predetermined fixed position as shown in FIG. The stop positioning device 27 includes parallel support shafts 27a, 27a provided at the lower portion of the frame-shaped carriage 21 of the unit transport device 20 and on both sides in the width direction orthogonal to the traveling direction, and one support shaft 27a. And a contact portion abutting on one side surface of a stop positioning metal fitting 27e provided at an outer position of the rail 2 so as to be rotatable by the arm driving cylinder 27d. The positioning arm 27b and the other support shaft 27a are rotatably fitted to the outside of the support arm 27a, and the stop positioning metal fitting 2
And a driven side positioning arm 27 having a gear portion 27c 'meshing with a gear portion 27b' of the drive side positioning arm 27b.
c. The stop positioning bracket 27
e is a position for raising and lowering the upper and lower roll units 101 and 102 pulled out by the unit pulling / incorporating device 10, a position for transferring and receiving the lower roll unit 102 to the lower roll unit lateral moving device 30, and an upper roll unit. The pair 101 is provided to the upper roll unit lateral moving device 40 and is provided at three positions, that is, the receiving position.

The stop position of the unit transfer device 20 is as follows.
For example, it is configured to be detected by a pulse generator or a proximity switch and to be stopped almost at a target position, and the stop position is shifted due to a change in inertia force, running resistance, or the like. It is adjusted by the stop positioning device 27.

That is, the stop position of the unit transfer device 20 deviates from a predetermined stop position due to a change in inertia force, running resistance, or the like. However, the drive / driven side positioning arms 27b, 27c are operated by the extension operation of the rod of the arm drive cylinder 27d.
Is rotated synchronously in the closing direction, the contact portion of one of the positioning arms comes into contact with the side surface of the stop positioning metal fitting 27e, and the unit transfer device 20 moves by the contact reaction force. Then, the drive / driven side positioning arms 27b, 27
c, when the respective abutting portions abut on opposite sides of the stop positioning metal fitting 27e.
Is stopped. Therefore, the unit transfer device 20
Is surely stopped at three predetermined positions.

The electric motor 22 for traveling and the electric motor 2 for raising and lowering the pawl provided on the frame-shaped carriage 21 are described.
Electric power for driving the 5a and 26a is supplied via a cable carrier 20a having a well-known configuration provided on the frame-shaped carriage 21 of the unit transfer device 20.

In the roll unit exchanging apparatus according to the first embodiment, as described above, the first and second lifting / lowering units having the screw jacks 25h and 26h are used to raise and lower the upper and lower roll units 101 and 102. Although the claw operating mechanisms 25 and 26 are employed, for example, a configuration including a winch and a sheave and a wire rope wound around the sheave may be employed. However, when the lifting / lowering claw operating mechanism has such a configuration, it has a function as a crane, so that not only manufacturers that can be manufactured are limited, but also the upper and lower roll units 101, 1
Considering that the weight of the 02 is, for example, 100 tons or more, it is necessary to provide an extremely large number of sheaves and wrap around the wire rope in a multiplex manner, which complicates the configuration and increases the maintenance cost. Absent. In addition, there is a possibility that the upper and lower roll units 101 and 102 may fall due to cutting of the wire rope or the like, which is not preferable from the viewpoint of safety and prevention of equipment damage.

The lower roll unit lateral moving device 30
As shown in FIG. 6, two are mounted on the inner side shift bases 3, 3 orthogonal to the rails 2, 2. Since these have the same configuration, only one configuration will be described. It is mounted on the inner side shift bases 3, 3 via a plurality of carriages 31a, which are mounted on the lower surface at predetermined intervals and in which a plurality of rollers arranged in parallel are formed in an endless track by a chain. The lower roll unit 102 is placed so as to be reciprocally movable, receives the lower roll unit 102 from the unit transport device 20, and
02 and the inner side shift base 3,
3 and a table operating cylinder 32 horizontally disposed between the inner side shift bases 3 and 3 for reciprocatingly moving the lower roll unit to and from a repair position at the end of the lower side.
And the inner side shift bases 3, 3 provided at the distal end of the telescopic rod 32a of the table operating cylinder 32.
And a lower U-shaped key claw support block 34 provided on the key claw support block 34 via a horizontal pin 34a. A key claw 35 that can be engaged with a key claw engaging portion (not shown) of
And a key pawl actuating cylinder 36 that rotates about the fulcrum 4a.

In other words, the key claw 35 is engaged with the key claw engaging portion of the lower roll unit horizontal moving base 31 by the extension operation of the rod of the key claw operating cylinder 36, and the extensible rod 32a of the base operating cylinder 32 is expanded and contracted. And the horizontal roll base 31 for the lower roll unit reciprocates on the inner side shift bases 3, 3, and as shown by the imaginary line,
When the key claw 35 is disengaged from the key claw engaging portion of the lower roll unit horizontal moving base 31 by the reduction operation of the rod 6, the lower roll unit horizontal moving base 31 stops on the inner side shift bases 3. It is configured to be. In addition,
As is well understood from the figure, the lower roll unit lateral moving table 31 reciprocates across the rails 2, but it is loose when crossing the rails 2 due to the presence of the plurality of table carriers 31 a. There is no such thing.

The upper roll unit lateral moving device 40
7 are arranged on outer side shift bases 4, 4 orthogonal to the pair of rails 2, 2, as shown in FIG. 7.
Since these have the same configuration, only one configuration will be described. That is, the unit carrier is reciprocally mounted on the outer side shift bases 4 and 4 via a plurality of platform carriers 41a having the same configuration as the platform carrier 31a attached to the lower surface at a predetermined interval, and unit transport is performed. The upper roll unit 101 is moved from the device 20 to a shaft 101 provided in parallel with the roll R.
a and a geared shaft 1 provided with a gear 101c at the tip thereof
01b, a shaft supporting member 41 protruding left and right in the moving direction.
b, 41b and the unit transfer device 20
And a laterally movable table 41 for the upper roll unit which reciprocates between a position where the upper roll unit 101 can be delivered and a repair position on the end side of the outer side shift bases 4, 4. Table operating cylinder 42 horizontally disposed between the table operating cylinder 42
A key U-shaped claw support block 44 that slides on sliding rails 43 provided between the outer side shift bases 4 and 4 and is provided at the distal end of the telescopic rod 42a. A horizontal pin 44a is provided on the claw support block 44.
And a key claw 45 that can be engaged with a key claw engaging portion (not shown) of the upper roll unit horizontal moving table 41,
A key claw operating cylinder 46 for rotating the key claw 45 around the pin 44a is provided.

That is, the extension of the rod of the key claw operating cylinder 46 causes the key claw 45 to engage with the key claw engaging portion of the upper roll unit horizontal moving table 41 to extend and retract the extendable rod 42a of the table operating cylinder 42. Then, the upper roll unit horizontal moving base 41 reciprocates on the outer side shift bases 4 and 4, and the key claw 45 is moved by the reduction operation of the rod of the key claw operating cylinder 46 to move the key claw 45 to the upper roll unit horizontal moving base 41.
When the upper roll unit lateral moving table 41 is removed from the key claw engaging portion, the upper roll unit lateral moving table 41 stops on the outer side shift bases 4, 4. The configuration of the upper roll unit lateral moving device 40 is as follows. As is well understood from the above description, the lower roll unit has substantially the same configuration as the lower roll unit lateral moving device 30.

As shown in FIG. 1, the unit rotation device 50 is provided at an outer position on the tip side of the rails 2 and 2 and at an intermediate position in the width direction of the rails 2 and 2. The configuration is as shown in FIGS. 8A and 8B. That is, the unit rotation device 50 includes a forward / reverse rotatable electric motor with a speed reducer 51, a driving sprocket 52 externally fitted to an output shaft of the electric motor with a speed reducer 51, and an electric motor with a speed reducer 51. A pivot arm 54 pivoted about the rotation center of the
Driven sprocket 5 rotatably supported at the tip of
5, a chain 53 mounted on the driving sprocket 52 and the driven sprocket 55, and an outer roll unit 1 which is fitted around a shaft for rotating the driven sprocket 55.
Unit rotation gear 56 meshed with the gear 101c of No. 01
Arm operating cylinder 2 for rotating the rotating arm 54
7 is comprised.

Therefore, when the unit transfer device 20 is separated from the upper roll unit horizontal moving table 41 on which the upper roll unit 101 is loaded, the arm operating cylinder 57 is moved.
The extension of the rod causes the rotation arm 54 to rotate in the upward direction, so that the unit rotation gear 56 meshes with the gear 101c. Next, when the electric motor with speed reducer 51 is driven, the upper roll unit 101 is rotated by 180 ° so that the roll faces upward, and the upper roll unit 101 is rotated.
Is rotated by 180 °, the drive of the electric motor with speed reducer 51 is stopped. After the upper roll unit 101 has been repaired, the roll is turned 180 ° so that the roll faces downward. When the reverse rotation is completed, the drive of the electric motor 51 with a speed reducer is stopped, and the unit of the arm operating cylinder 57 is reduced by reducing the rod. The rotation arm 54 is rotated in a downward direction in which the rotation gear 56 is separated from the gear 101c, and the unit rotation gear 56 is maintained at that position.

The unit rotation preventing device 60 is shown in FIG.
As shown in (a) and FIG. 9 (b), it is provided at a position outside the repair position and different from the unit rotating device 50. In other words, this is a pair of Γ-shaped support frames 61, 61 each composed of a support member and a cantilevered horizontal member protruding horizontally at the top of the support member.
And cylinder support brackets 62, 62 provided at the tops of the horizontal members of the support frames 61, 61 and provided at the top thereof, and provided at the front ends of the cylinder support brackets 62, 62 to extend and contract downward. Pressing cylinder 6 provided with pressing pad 63a at the tip of rod
3, 63.

That is, these pressing cylinders 63, 63
Presses the upper surface of the upper roll unit 101 with the pressing pad 6.
The upper roll unit 101 is pressed to prevent rotation of the upper roll unit 101 by pressing through the 3a, and functions to facilitate repair work of the rolls of the upper roll unit 101. Of course, after the repair is completed, the rods of the pressing cylinders 63, 63 are reduced,
The upper roll unit 101 includes a shaft 101a and a shaft 1 with a gear.
01b can be rotated.

By the way, in this embodiment, as described above, the pressing cylinders 63, 63 are used to prevent the rotation of the upper roll unit 101.
For example, a block having a projection that can be engaged with a horizontal groove of the upper roll unit 101 with which the first lifting claw 23 is engaged, and a pressing member that presses the lower surface of the upper roll unit 101 is provided. 10
It is also possible to adopt a configuration in which the pressing force is applied to one.

As can be understood from the above description, the lower roll unit lateral moving device 30 and the upper roll unit lateral moving device 40 are both reciprocated and stopped at a predetermined position. However, in any case, it is necessary to maintain the stop state at the predetermined stop position. For this reason, locking cylinders are provided at the stop positions, respectively. When the lateral movement devices 30 and 40 come to a predetermined position and stop, the rod of the locking cylinder is extended and provided at the tip of the rod. The locking member is
It is configured to be inserted into a locking hole provided below these lateral moving devices 30 and 40. The stop positions of the upper / lower roll unit lateral slides 31 and 41 are as follows.
For example, it is configured to be detected by a pulse generator or a proximity switch and to be stopped almost at a target position. Of course, a shift occurs in the stop position due to inertial force, movement resistance, and the like, but the shift in the stop position is adjusted by the lock member.

The mode of use of the roll unit exchanging apparatus 1 having the above configuration will be described below.
The upper and lower roll units 101 and 102 are pulled out from the roller leveler 100 in a stacked state by the incorporating device 10. Up·
When the lower roll units 101 and 102 are pulled out, the unit transport trolley 20 is moved, and the unit transport trolley 20 is stopped at a position where the center of the inside and the centers of the upper and lower roll units 101 and 102 match. At this time,
Since the first lifting claw 23 is located inside the groove of the upper roll unit 101 and the second lifting claw 24 is located inside the groove of the lower roll unit 102, the first and second lifting claw operating mechanisms 25 and 26 are provided. When the first and second lifting claws 23 and 24 are raised by operating the upper and lower roll units 101 and 102, the upper and lower roll units 101 and 102 are lifted because the upper ends of the claws are hooked on the upper inner wall of the groove. 102
Is lifted to a predetermined height, the operations of the first and second lifting claw operating mechanisms 25 and 26 are stopped. Although the upper and lower roll units 101 and 102 are heavy, since they are the screw jacks 25h and 26h, there is no danger that the upper and lower roll units 101 and 102 will naturally drop or fall.

In parallel with this, the telescopic rods 32a and 42a of the table operation cylinders 32 and 42 of the lower roll unit lateral moving device 30 and the upper roll unit lateral moving device 40 are reduced, and the upper and lower roll unit lateral moving devices are moved. Stands 31, 4
1 is the inner and outer side shift bases 3, 3, 4, respectively
4 on the rail 2,
2, the movement of the upper / lower roll unit lateral moving tables 31, 41 is stopped and locked. Next, the key pawls 35, 36 are rotated upward by the contraction operation of the rods of the key pawl operating cylinders 36, 46, and the key pawls 35, 36 are moved upward and downward from the horizontal moving table 31,
41 and the unit carrier 2
The telescopic rods 32a, 42a of the table operating cylinders 32, 42 are extended so that 0 can travel on the rails 2, 2.

Then, when the unit transporting trolley 20 is moved and the lower roll unit 102 being lifted is located directly above the lower roll unit horizontal moving platform 31, the unit transporting trolley 20 is stopped, and the second lifting claw operating mechanism 26 is stopped. When the lower roll unit 102 is lowered by the reverse operation and placed on the lower roll unit horizontal moving table 31, the unit transport vehicle 20 is moved to the upper roll unit horizontal moving device 40.
Is moved in the direction of the upper roll unit horizontal moving table 41. Next, the upper roll unit 10 being lifted
When 1 is directly above the horizontal moving table 41 for the upper roll unit, the unit carrier 20 is stopped, and the upper roll unit 101 is lowered by the reverse operation of the first raising / lowering claw operating mechanism 25, and the shaft 101a and the geared shaft 101b are Is received by the pair of shaft support members 41a and 41 and is placed on the upper roll unit horizontal moving table 41, the unit transporting carriage 20 is returned to the roller leveler body side.

When the unit transport cart 20 is returned, the roll is turned upward by the unit rotating device 50.
The upper roll unit 101 is rotated by 180 °, and the telescopic rods 32a and 42a of the table operating cylinders 32 and 42 of the lower roll unit lateral moving device 30 and the upper roll unit lateral moving device 40 are reduced, and the key nail operating cylinder 36 , 46 by extension of the rods
With the downward rotation, the key claws 35 and 36 are engaged with the engaging portions of the upper / lower roll unit lateral moving bases 31 and 41, respectively.
When the locks of the lower roll unit horizontal moving tables 31 and 41 are released, the telescopic rods 3 of the table operating cylinders 32 and 42 are released.
2a, 42a are extended, and the upper and lower roll unit lateral moving bases 31, 41 on which the upper and lower roll units 101, 102 are loaded are respectively connected to one end of the inner and outer side shift bases 3, 3, 4, 4. The part is moved to the repair position. Then, the upper roll unit 10 that has been rotated by 180 ° and is loaded on the lateral roll table 41 for the upper roll unit.
1 is fixed by the pressing cylinders 63 of the unit rotation preventing device 60 for the repair work of the roll.

Upper / lower roll unit horizontal moving tables 31, 41 loaded with upper / lower roll units 101, 102
When the movement of the upper and lower roll units 101 and 102 has been completed, the upper and lower roll units 101 and 102 are mounted on the rails. It is moved to the center position in the width direction 2 or 2. Of course, the upper roll unit 101 placed on the upper roll unit horizontal moving table 41 is rotated so that the roll R faces downward, and the telescopic rods 32a, 42a of the other table operating cylinders 32, 42 extend. Then, the unit carrier 20 is brought into a state where it can travel on the rails 2 and 2.

The unit carrier 20 which has been returned to the roller leveler main body is moved to the position of the upper roll unit lateral moving table 41 and stopped there. The upper roll unit 101 is lifted and supported by the unit carrier 20. Next, the unit transporting trolley 20 is moved to the position of the lower roll unit lateral moving base 31 and stopped, and the lower roll unit 102 on the lower roll unit horizontal moving base 31 is lifted by the raising of the second lifting claw 24. While being supported by the unit transporting cart 20, it is returned to the installation position of the upper and lower roll units 101 and 102, where the first and second elevating pawls are both lowered, and
The lower roll units 101 and 102 are lowered in a stacked state. In this way, the upper and lower roll units 10
When the upper and lower roll units 101 and 102 are lowered in a stacked state, the upper and lower roll units 101 and 102 are assembled into the roller leveler main body by the unit extracting / assembling device 10. In parallel with this, the vacant upper / lower roll unit horizontal moving tables 31, 41 are used for stand-by, and the table operating cylinders 32,
By the extension of the telescopic rods 32a, 42a of 42, the inner / outer side shift bases 3, 3, 4, 4 are moved to the repair position on the other end side.

On the other hand, the upper / lower rolls on the upper / lower roll unit horizontal moving bases 31, 41 which have been moved to the repair position at one end of the inner / outer side shift bases 3, 3, 4, 4 earlier. The units 101 and 102 are repaired at this position until the next roll unit replacement, and are used at the next roll unit replacement.

As described above, according to the roll unit exchanging device according to the embodiment of the present invention, the upper / lower roll units 101 and 102 are pulled out and assembled, the drawing position is changed from the repair position to the repair position, or from the repair position to the drawing position. , The rotation operation of the upper roll unit 101, and the rotation prevention operation are all performed mechanically, and only some of the operations are not mechanically performed as in the conventional arts 1 and 2. Requires only the rolls to be repaired by the upper and lower roll units 101 and 102. Therefore, the upper and lower roll units 101 and 102 can be exchanged with higher efficiency than before, and the roll units can be lifted by a crane.
Since there is no need to perform the hanging work, the safety of the replacement work of the upper and lower roll units 101 and 102 is also improved.

When lowering the upper and lower roll units 101 and 102 in a stacked state in order to assemble the upper and lower roll units 101 and 102 into the roller leveler main body, the upper roll unit 101 is lowered on the lower roll unit 102. Since the first lifting claw 23 descends without shaking,
There is no fear that the rolls of the upper and lower roll units 101 and 102 will be scratched, and the rolls are more reliably lowered to a predetermined position on the lower roll unit 102, so that there is no need to pay attention to the alignment.

In the above description, two upper / lower roll unit lateral moving bases are respectively provided on the inner / outer side shift bases, and the upper / lower rolls are provided at both ends of the inner / outer side shift bases. Unit repair positions are provided, and the case where the roll-repaired upper and lower roll units are immediately incorporated is described as an example. For example, one upper and lower roll unit for each of the inner and outer side shift bases is used. A configuration in which a horizontal moving base is provided may be used. Needless to say, the time required for replacement is longer by the time required for repairing the rolls than in the above-described embodiment. In addition, all the rotation work and rotation prevention work of the upper roll unit are performed mechanically, and only the crane work of the roll to be repaired for the upper and lower roll units can be performed, so the replacement time of the roll unit is shorter than before, and・ The safety of replacement work of the lower roll unit is excellent.

In the above description, when the upper and lower roll units 101 and 102 that have been pulled out are transported, the upper and lower roll units 101 and 102 are moved between the unit pull-out / incorporation device 10 and the lower roll unit lateral moving device. The case where the sheet 102 is conveyed together has been described as an example. However, for example, first, the upper roll unit 101 is transported and is loaded on the lateral roll base 41 for the upper roll unit, and then the lower roll unit 102 is transported and loaded on the lateral movable base 31 for the lower roll unit. Then, when assembling, the repaired lower roll unit 102 is received from the lower roll unit horizontal moving base 31 and lowered onto the unit mounting table of the unit pull-out / incorporation device 10, and then the repaired upper roll unit 101 is moved to the upper roll. Each of them can be individually conveyed, such as being received from the unit horizontal moving table 41 and lowered onto the lower roll unit 102 and stacked. If such an individual transport method is employed, the number of reciprocating movements of the unit transport device 20 increases, which is disadvantageous in terms of the required transport time.
Has a low strength and a low rigidity, so that there is a cost reduction effect that the equipment cost becomes advantageous.

Next, the roll unit exchanging apparatus according to the second embodiment of the present invention will be described with reference to FIG. The description is given with the same reference numerals. this is,
The rails 2, 2 in the direction in which the steel sheet enters and exits the roller leveler 100, that is, in the direction orthogonal to the unit pull-out / incorporation device 10.
And a unit transporting device 20 that reciprocates on the rails 2 and 2 has substantially the same configuration as that of the first embodiment. The lower roll unit mounting table 31 on which the lower roll unit is mounted is located within the movement range of the unit transport device 20 and on both sides of the unit pull-out / incorporation device 10 sandwiching the unit pull-out / incorporation device 10. , 3
1 and the upper roll unit mounting tables 41, 4 on which the upper roll units are mounted at positions outside them.
1 is arranged. Further, the upper roll unit mounting table 4
The configuration is such that a unit rotation device 50 and a unit rotation prevention device 60 are disposed in the vicinity of 1, 41.

Accordingly, the upper and lower roll units to be repaired, which have been pulled out from the roller leveler 100 by the unit pulling / incorporating device 10, are transported by the unit transport device 20, and the lower roll unit is placed on one lower roll unit mounting table 31. The unit is mounted, and the upper roll unit is mounted on one upper roll unit mounting table 41. Next, the repaired lower roll unit mounted on the other lower roll unit mounting table 31 is received and lowered on the unit mounting table of the unit pull-out / incorporation device 10, and the other upper roll unit mounting table is received. Since the repaired upper roll unit placed on 41 can be received, lowered on the lower roll unit, and stacked and assembled, the second embodiment has the same effect as that of the first embodiment. In addition to this, there is no need for a table operation cylinder or the like for moving the upper / lower roll unit mounting table, so that there is an economic advantage that the apparatus cost is more advantageous than in the first embodiment.

Of course, the upper and lower roll units mounted on one of the upper and lower roll unit mounting tables 31, 41 are repaired for the next replacement work, and the upper and lower roll unit mounting tables 31, 41 are replaced. 41. In the second embodiment, the upper and lower roll unit mounting tables 31 and 41 are disposed on both sides in the width direction of the unit pull-out / incorporation device 10, but are disposed only on one of the sides. May be adopted.

Next, the roll unit exchanging device according to the third embodiment of the present invention will be described with reference to FIG. When described with the same reference numerals, this is a direction along the longitudinal direction of the roller leveler 100 roll,
In other words, the rails 2 and 2 are arranged in the same direction as the longitudinal direction of the unit pull-out / incorporation device 10, and the unit transport device 20 having the same configuration as that of the first embodiment reciprocating on the rails 2 and 2 is used. Arrange. Then, this unit transfer device 20
Unit withdrawal / incorporation device 10
A lower roll unit mounting table 31 on which the lower roll unit is mounted is disposed on the side, and an upper roll unit mounting table 41 on which the upper roll unit is mounted is disposed outside the lower roll unit mounting table. A unit rotation device 50 and a unit rotation prevention tank 60 are arranged near 41.

Therefore, the upper and lower roll units to be repaired, which are pulled out from the roller leveler 100 by the unit pulling / incorporating device 10, are transported by the unit transport device 20, and the lower roll unit is placed on the lower roll unit mounting table 31. And the upper roll unit mounting table 41
Place the upper roll unit on the top. Next, after the upper and lower roll units mounted on the upper and lower roll unit mounting tables 31 and 41 are repaired, the lower roll unit is received and placed on the unit mounting table of the unit pull-out / incorporation device 10. The third embodiment is different from the second embodiment in that the lower roll unit can be received and lowered onto the lower roll unit for stacking.
Has the same effect as.

[0055]

As described in detail above, claim 1 of the present invention
According to the roll unit exchanging device according to any one of (5) to (5), the upper and lower roll units are pulled out and assembled, the transfer operation is performed from the pull-out position to the repair position or from the repair position to the pull-out position, and the upper roll unit is rotated and prevented from rotating. Is performed mechanically, only a part of the work is not performed mechanically as in conventional 1 and 2, and only the crane work of the rolls to repair the upper and lower roll units is enough.
The roll unit can be replaced more efficiently than before, and there is no need to lift and suspend the roll unit with a crane. The effect can be obtained.

[Brief description of the drawings]

FIG. 1 is an overall plan view of a roll unit changing device according to Embodiment 1 of the present invention.

FIG. 2 is a front view of the unit transport device according to the first embodiment of the present invention.

FIG. 3 is a side view of the unit transfer device according to the first embodiment of the present invention.

FIG. 4 is a plan view of the unit transport device according to the first embodiment of the present invention.

FIG. 5 is a detailed view of a part A in FIG. 3;

FIG. 6 is an explanatory side view of the lower roll unit lateral moving device according to the first embodiment of the present invention.

FIG. 7 is an explanatory side view illustrating a configuration of an upper roll unit lateral moving device according to the first embodiment of the present invention.

8 (a) is a front view of a unit rotating device, and FIG. 8 (b) is a view B of FIG. 8 (a) according to the first embodiment of the present invention.
It is an arrow view.

9 (a) is a front view of a unit rotation preventing device, and FIG. 9 (b) is a side view of the unit rotation preventing device according to the first embodiment of the present invention.

FIG. 10 is a schematic plan view of a roll unit changing device according to Embodiment 2 of the present invention.

FIG. 11 is a schematic plan view of a roll unit changing device according to Embodiment 3 of the present invention.

FIG. 12 is a partial cross-sectional view showing a universal joint spindle support device according to Conventional Example 1.

FIG. 13 is a longitudinal sectional view of a roller reversing device according to Conventional Example 2.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Roll unit exchange apparatus, 2 ... Rail, 3 ... Inner side shift base, 4 ... Outer side shift base 10 ... Unit pull-out / incorporation apparatus 20 ... Unit transport apparatus, 21 ... Frame-shaped trolley, 21a ... Drive wheel, 21b ... Driving wheel, 22 ... Motor for running, 22a ...
Chain, 23: first lifting claw, 23a: receiving plate, 24: second lifting claw, 24a: receiving plate, 25: first lifting claw operating mechanism,
25a: electric motor for claw lifting and lowering, 25b: reducer, 25c
... upper horizontal rotating shaft, 25d ... upper rotating force transmitter, 25e
... Vertical rotating shaft, 25f Lower rotating force transmitter, 25g Lower horizontal rotating shaft, 25h Screw jack, 26 Second lifting claw operating mechanism, 26a Electric motor for claw lifting and lowering, 26
b: reduction gear, 26c: upper horizontal rotating shaft, 26d: upper rotating force transmitter, 26e: vertical rotating shaft, 26f: lower rotating force transmitter, 26g: lower horizontal rotating shaft, 26h: screw jack, 27: stop positioning Device, 27a ... support shaft,
27b: Drive-side positioning arm, 27b ': Gear part, 2
7c: driven side positioning arm, 27c ': gear part, 27
d: arm drive cylinder, 27e: stop positioning bracket 30: lower roll unit lateral moving device, 31: lower roll unit lateral moving table, 31a: table support member, 32: table operating cylinder, 32a: telescopic rod, 33: slide Moving rail, 34 ... key claw support block, 34a ... pin, 35 ... key claw, 36 ... key claw operating cylinder 40 ... upper roll unit lateral moving device, 41 ... upper roll unit lateral moving table, 41a ... table supporting member, 41b ...
Shaft support member, 42: table operating cylinder, 42a: telescopic rod, 43: sliding rail, 44: key claw support block, 44
a pin, 45 key lock, 46 key lock operating cylinder 50 unit rotating device, 51 electric motor with reduction gear,
52: drive side sprocket, 53: chain, 54: rotating arm, 55: driven side sprocket, 56: unit rotating gear, 57: arm operating cylinder 60: unit rotation preventing device, 61: support frame, 6
2 ... Cylinder support bracket, 63 ... Pressing cylinder, 1
00: roller leveler 101: upper roll unit, 101a: shaft, 101b
... Shaft with gear, 101c ... Gear, 102 ... Lower roll unit R ... Roll

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-5-323 (JP, A) JP-A-62-166023 (JP, A) JP-A-60-181212 (JP, U) (58) Survey Field (Int.Cl. ⁷ , DB name) B21D 1/02 B21D 1/05

Claims (5)

(57) [Claims] 1. A and the unit lead-built device incorporating a pair of upper and lower roll units pulled out of the roller leveler body, and a body with a plurality of parallel rolls, respectively, on
.Vertical lines parallel to the rolls of the lower roll unit
A unit transporting device having a push-up type elevating means for reciprocating along a passage and individually elevating and lowering the upper and lower roll units, and a unit pulling / incorporating device side of the main body
Provided, lateral for the lower roll unit in which the lower roll unit which has been conveyed in the previous SL unit transport apparatus is placed on the
A moving stage, the present than the transverse moving base for the lower roll unit
A laterally movable table for the upper roll unit , which is provided outside the body and on which the upper roll unit transported by the unit transport device is placed, and a laterally movable table for the upper roll unit ;
Than dynamic table disposed outside away from the body, it consists of a unit anti-rotation device for preventing rotation of the unit rotating device and the upper roll unit to rotate the upper roll unit placed on the upper roll unit table Roller changer for roller leveler. 2. A unit pull-out / incorporation device which pulls out a pair of upper / lower roll units each having a plurality of parallel rolls from a roller leveler main body and assembles them into the main body, and is provided in parallel with the rolls of the upper / lower roll units. Unit transport device having a push-up type elevating means for reciprocating along the traversed path and individually raising and lowering the upper and lower roll units, and a unit support position of the unit transport device and orthogonal to the traverse passage. Reciprocating along the inner traversing path between the laterally outward repair positions to receive the lower roll unit from the unit transport device and transfer the lower roll unit to the unit transport device, and the lower roll unit lateral movement Provided at a position more distant from the main unit than the device, and in the horizontal direction orthogonal to the unit support position and the vertical The upper roll unit lateral moving device that reciprocates along the outer lateral passage between the outer repair positions, receives the upper roll unit from the unit transport device, and transfers the upper roll unit to the unit transport device, and repairs the upper roll unit lateral moving device. A unit rotation device that is provided outside the position and rotates the upper roll unit supported by the upper roll unit lateral movement device so as to be able to rotate forward and reverse, and a unit rotation device that is provided outside the repair position of the upper roll unit lateral movement device. And a unit for preventing rotation of the upper roll unit supported by the upper roll unit lateral moving device. 3. The inner / outer traversing passage extends on both sides in a direction orthogonal to the traversing passage, and the inner traversing passage has two
3. The roller unit exchanging device for a roller leveler according to claim 2, wherein two lower roll unit lateral moving devices are provided in the outer lateral passage and two upper roll unit lateral moving devices are disposed in the outer lateral passage. 4. An upper / lower unit provided in the unit transport device engages with an upper / lower roll unit to move the upper / lower roll unit.
The lifting roll includes a lifting claw that individually raises and lowers the lower roll unit, a screw jack that pushes up and down the lifting claw, and a rotational force transmission mechanism that transmits the rotation of the claw lifting motor to the screw jack and causes the screw jack to expand and contract. The roll unit exchanging device for a roller leveler according to any one of claims 1, 2, and 3, wherein: 5. A synchronous opening / closing device which is provided in the unit transporting device and which is provided in the vicinity of the vertical passage and which is provided with the stop positioning metal fitting and adjusts a shift of a stop position of the unit transporting device. The roller unit exchanging device for a roller leveler according to any one of claims 1, 2, 3, and 4, further comprising a stop positioning device including a pair of free positioning arms.