JP2854565B2 - Web guide rearranging device for mill roll - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a web guide rearranging apparatus for mill rolls, and more particularly to a pair of rolling rolls comprising an upper roll having chocks attached to both ends and a lower roll having chocks attached to both ends. The present invention relates to a web guide rearranging apparatus for rearranging web guides for chocks of each roll in a horizontal roll.

[0002]

2. Description of the Related Art A rolling apparatus for rolling a section steel such as an H-section steel has a pair of upper and lower rolling horizontal rolls (upper roll and lower roll) and a vertical roll for rolling the side of the section steel.
In each of the upper and lower rolls, a chock is provided at a portion near both ends, and a web guide for guiding the web of the mold steel is provided.
It is fixed to the paired chock with bolts. Rolls and web guides need to be replaced when changing the type or size of the steel to be rolled or when repairing rolls, and chock is commonly applied to various rolls.

Conventionally, when rearranging web guides, the upper and lower rolls are removed via an overhead crane, the web guides fixed to the chock of each roll are released, and then the rolls and the web guides are respectively stored in storage locations. Transport to Next, the roll to be used and the web guide are transported from a storage location via an overhead crane, and a pair of chocks are assembled to each roll at a predetermined preparation station, and the web guide is assembled to the chocks, By assembling the upper and lower rolls with the chocks and the web guides attached to a rolling mill, the rolls and the web guides are rearranged. As described above, an automated or semi-automated web guide changing apparatus for mill rolls for changing the web guide has hardly been proposed.

Japanese Patent Application Laid-Open No. Hei 5-23725 discloses a pair of left and right web guides and a pair of rollers for guiding the end face of a flange of a mold steel. The pair of web guides and the pair of rollers are integrated. Can be moved in the direction of approaching / separating from
Rolling guides that can respond to changes in the type and size of the mold steel to be rolled by allowing the rollers to move up and down with respect to the web guides are described.However, guide means for the web guides and rollers, and web guides Due to the provision of the moving drive means for moving and driving the rollers, the elevating drive means for moving the rollers up and down, etc., this type of rolling guide requires a very high manufacturing cost and a very complicated structure.

[0005]

When a web guide for a mill roll is rearranged, the mounting and dismounting of each web guide with respect to a pair of chocks of each roll and the transport of each web guide before and after the mounting and dismounting are performed via an overhead crane. Therefore, the work efficiency is low, it takes time, the work load to be performed manually is large, and it is difficult to save labor. In particular, when removing the web guide from the chock of the upper roll, the pair of chock and the web guide fixed thereto are turned 180 degrees in a state where the roll body is supported in a rotation-restricted manner, and then the web for the chock is removed. It is necessary to release the fixation of the guide, but in this case, since the guide is inverted via the overhead crane, labor saving of the work is difficult.

In addition, the upper roll web guide and the lower roll web guide are stored and stored in one pallet, but the inverted upper roll web guide and lower roll web guide are inverted. If the pallet is stored in the same posture, the efficiency of storing the pallet is reduced, and the pallet is enlarged. An object of the present invention is to increase the work efficiency of attaching and detaching the web guide to and from the chock, to increase the work efficiency of inverting the upper roll chock and the web guide, and to increase the storage efficiency of storing the upper and lower web guides on a pallet. And so on.

[0007]

According to a first aspect of the present invention, there is provided a web guide changing device for a mill roll, comprising a pair of rolls comprising an upper roll having chocks attached at both ends and a lower roll having chocks attached at both ends. In the web guide rearranging apparatus for rearranging the web guide for the chocks of each roll in the horizontal roll for use, an upper roll set section for temporarily placing the upper roll, and the lower roll in series in the same direction as the upper roll. A lower roll set portion to be temporarily placed in a shape, a traveling carriage movable along the roll axis direction at a lateral position of the two roll set portions, at least a holding head for detachably holding a web guide of each roll. And a guide attaching / detaching device equipped with an elevating means for elevating and lowering the holding head.

When rearranging the web guides of a pair of horizontal rolls for rolling, an upper roll (with a pair of chocks and a web guide) removed from the rolling mill and conveyed is temporarily placed in an upper roll set section, The lower roll (with a pair of chocks and a web guide) removed from the rolling mill and conveyed is temporarily placed in a lower roll set section. Next, the traveling carriage of the guide attaching / detaching device is moved to stop at the side position of the lower roll, and in a state where the fixing of the web guide to the chock is released, the web guide is held by the holding head, and is moved through the elevating means. The trolley is raised, the trolley is run, transported, and delivered to a web guide storage pallet or the like at a predetermined position.
Next, in the same manner as above, the web guide of the upper roll is removed, transported, and delivered to the web guide storage pallet or the like. When assembling the web guide to the upper and lower chocksed rolls, the procedure is reversed.

Since the upper roll set section and the lower roll set section are arranged in series, a traveling path of the guide attaching / detaching device can be formed at the side position thereof, and the holding head is moved from the guide attaching / detaching apparatus to the upper roll setting section or the lower roll. Since the stroke extended to the set portion can be shortened, it is possible to prevent the guide attaching / detaching device from being enlarged. And since a web guide can be attached / detached by a guide attaching / detaching device without depending on an overhead crane, the work efficiency of attaching / detaching the web guide can be enhanced, and the work can be automated or semi-automated.

According to a second aspect of the present invention, there is provided a web guide rearranging apparatus for a mill roll, wherein the holding head is
The web guide is held by engaging a pair of pin members with a pair of engagement holes formed in the web guide. However, the pair of engagement holes and the pair of pin members are formed in a direction orthogonal to the roll. As described above, since the pair of pin members are engaged with the pair of engagement holes of the web guide to hold the web guide, the configuration of the holding head is simplified, and furthermore, as in claim 3 This is also advantageous in reversing the web guide via the holding head. Other operations are the same as those of the first aspect.

According to a third aspect of the present invention, there is provided a web guide changing device for a mill roll, wherein the guide attaching / detaching device moves the web guide held by the holding head around an axis in a direction orthogonal to the axis of the roll. A rotating means for rotating at least 180 degrees is provided. As described above, since the holding head can be rotated at least 180 degrees around the axis perpendicular to the axis of the roll by the rotating means, the removed upper roll web guide or lower roll web guide is inverted. Since the pallet can be stored in the storage pallet in a state, the efficiency of storing the pallet can be increased, and the pallet can be reduced in size. Other operations are the same as those of the first aspect.

According to a fourth aspect of the present invention, there is provided a web guide changing device for a mill roll, wherein the guide attaching / detaching device includes an advancing / retreating means for advancing / retreating a holding head in a direction perpendicular to the axis of the roll by a predetermined stroke. It is characterized by having. In this way, the holding head can be moved back and forth by a predetermined stroke in a direction perpendicular to the axis of the roll by the moving means, so that the holding head is moved to the upper roll of the upper roll set portion or the lower roll of the lower roll set portion. , The web guide can be attached and detached. Therefore, the configuration of the guide attaching / detaching device can be simplified. Other effects are the same as those of the third aspect.

According to a fifth aspect of the present invention, there is provided the web guide rearranging apparatus for a mill roll according to any one of the first to fourth aspects, wherein the upper roll set portion supports a pair of both ends of the upper roll. The present invention is characterized in that a shaft end support member and a pair of chock receiving members of variable height positions for supporting a pair of chock are provided. When removing the web guide from the chock of the upper roll, it is desirable to remove the web guide in a state where the pair of chock is received by the pair of chock receiving members, is rotationally restrained, and is stabilized. Here, when the pair of chock receiving members are lowered in a state where both ends of the upper roll are supported by the pair of shaft end supporting members, the pair of chocks and the web guide are moved upward as in claim 6. The roll can be rotated about the axis of the roll, and after the rotation, the pair of chock receiving members can be raised to support the pair of chocks. In addition, the same operation as in any one of claims 1 to 4 is achieved.

According to a sixth aspect of the present invention, there is provided a web guide rearranging apparatus for a mill roll according to the fifth aspect of the present invention, wherein the upper roll set portion has a rotary head detachably engaged with one of the chocks. And a choke rotating means for rotating the pair of chocks and the web guide by at least 180 degrees. As described in claim 5, in a state in which both ends of the upper roll are supported by the pair of shaft end support members and the pair of chock receiving members are lowered, the rotary head of the chock rotating means is rotated. By rotating the pair of chocks and the web guide at least 180 degrees, the pair of chocks and the web guide can be inverted. in this way,
In the inverted state, the web guide can be released from the pair of chocks and removed by the holding head.

[0015]

Embodiments of the present invention will be described below with reference to the drawings. The mill roll web guide rearranging apparatus of the present embodiment is designed for a pair of horizontal rolling rolls including a pair of horizontal rolls including an upper roll having chocks attached at both ends and portions having chocks attached at both ends. This is an example of a case where the present invention is applied to a web guide rearranging apparatus for rearranging web guides.

As shown in FIG. 1, a web guide rearranging apparatus 1 for a mill roll (hereinafter referred to as a web guide rearranging apparatus).
The upper roll set part 3 for temporarily placing the upper roll 2, the lower roll set part 5 for temporarily placing the lower roll 4 in the same direction as the upper roll 2 in series, and the lower roll set part 5 And a pair of guide attaching / detaching devices 7 and the like movably arranged along the roll axis direction on both front and rear sides of the pallet setting section 6 and the pallet setting sections 6 and 5 provided on the pallet setting section 6. I have.

First, the horizontal roll for rolling will be described. The upper roll 2 shown in FIGS. 2 and 3 shows a state in which the upper roll 2 can be mounted on a rolling mill, and the pair of shafts 11 and 12 of the roll main body 10 rotate them. A pair of left and right chocks 13, 1 freely supported
A pair of web guides 17 are provided at the front and rear ends of the pair of chocks 13 and 14 with bolts 18.
And each is detachably mounted. The pair of chocks 13 and 14 are commonly applied to various rolls. In the case of changing the type and size of the steel to be rolled or repairing the rolls, the roll body 10 and the web guide 17 are provided to the chocks 13 and 14. Be exchanged.

A bracket 15 having an engaging hole 16 with which a rotary head 55 of a choc rotating device 23 (corresponding to a choc rotating means) is fixed is fixed to an outer peripheral portion of a right end of the right choc 14. , A pair of engagement holes 19 with which a pair of pin members 96 of the guide attaching / detaching device 7 are engaged are formed in the opposite portion of the roll body 10. A pair of horizontal portions 11a is formed at the left end of the shaft 11 (see FIG. 4), and the right end of the shaft 12 is formed at the small diameter portion 12a. Note that the lower roll 4 has the same structure as the upper roll 2, and has a structure in which the chocks 13, 14 and the web guide 17 are rotated by 180 degrees from the postures of FIGS.

As shown in FIG. 1, a pair of left and right shaft end supporting members 20 and 21 for supporting both ends of the upper roll 2 and a pair of chocks 13 and
A pair of chock receiving members 22 having a variable height for supporting the chocks 14, a chock rotating device 23 for integrally rotating the chocks 13, 14 and the web guide 17 and the like are provided. The member 21 includes the choke rotation device 2
3 is attached.

As shown in FIG. 4 and FIG.
Reference numeral 0 denotes a pair of guide blocks 26 fixed to the upper surface of the gantry 25 and a pair of slide blocks 29 slidably engaged with the T-shaped grooves 27 of the pair of guide blocks 26 and guided in the front-rear direction. And a pair of slide blocks 29
Are configured to be selectively movable in a phase approach direction and a phase separation direction by a drive mechanism 30. Support members 28 are respectively fixed to the opposing portions of the pair of guide blocks 26, and the pair of slide blocks 29 are provided with support portions 29a at positions protruding upward from the guide blocks 26.

That is, in the large-diameter shaft 11 shown by the solid line in FIG. 4, a pair of slide blocks 29 are moved in the direction of separation and supported by the support member 28 of the guide block 26. Can move the pair of slide blocks 29 in the phase approaching direction and can be supported by the support portions 29a of the slide blocks 29. The support member 2
When the shafts 11 and 11A are supported by the shafts 8 and 29a, the horizontal portions 11a and 11b abut on the upper surfaces of the support member 28 and the support portion 29a, thereby restricting the rotation of the shaft 11.

The driving mechanism 30 includes a screw shaft 33 rotatably supported by a pair of bearing members 32 having a bearing 31 therein and disposed along the T groove 27, and a driving motor for rotating the screw shaft 33. 35 or the like. Screw part 3 at the front and rear of screw shaft 33
3a and 33b are formed as reverse screws, and these screw portions 33 are formed.
a and 33b are screwed into a pair of slide blocks 29, respectively, and by driving a drive motor 35, the screw shaft 33 is rotated via a sprocket 36, a chain 37, and a sprocket 38, and the pair of slide blocks 29 is rotated. 29 is selectively driven to move in the phase approach direction or the phase separation direction.

As shown in FIGS. 6 and 7, each of the chock receiving members 22 is supported by a plurality of upstanding hydraulic cylinders 50 so as to be variable in height. It is driven up and down via a rod 51. Instead of the plurality of hydraulic cylinders 50, a chock receiving mechanism is provided by a link drive mechanism having a pair of link members rotatably connected at the center and an actuator for relatively rotating the pair of link members. The member 22 may be supported so as to be able to move up and down.

As shown in FIGS. 8 to 10, the chock rotating device 23 has a rotating head 55 detachably engaged with the engaging hole 16 of the chock 14, and the rotating head 55 is inserted into the engaging hole 16. The pair of chocks 13, 14 and the pair of web guides 17 are integrally rotated by being engaged and rotated by the rotation drive mechanism 56. The mounting table 5 on the upper side of the gantry 57
8, a rotating shaft 60 is rotatably provided via a pair of bearings 61, and a rotating arm 62 extending in a direction orthogonal to the axis is fixed to the left end of the rotating shaft 60.
A cylinder 63 is attached to the tip of the rod 63, and a rotary head 55 is provided at the tip of a rod 64 driven by the cylinder 63.

The rotation drive mechanism 56 has a drive motor 65 disposed on the lower right side of the rotation shaft 60.
5, the sprocket 66 and the chain 6
7. The rotating shaft 60 is rotated via the sprocket 68. On the upper surface of the left part of the mounting table 58, a shaft end supporting member 21 that supports the small diameter portion 12a of the shaft 12 of the upper roll 2 is provided upright. The upper end portion of the shaft end supporting member 21 is formed in a shaft supporting portion 70 cut out in a substantially V shape, and the small diameter portion 12 a is supported by the shaft supporting portion 70 via a pad 71.

As shown in FIG. 1, the pair of guide attaching / detaching devices 7 have a substantially symmetrical structure with the upper roll setting unit 3, the lower roll setting unit 5, and the pallet setting unit 6 interposed therebetween. 7 will be described. As shown in FIGS. 11 to 13, the guide attaching / detaching device 7 includes a traveling carriage 75, a holding head 76 mounted on the traveling carriage 75 and detachably holding the web guide 17 of each of the rolls 2 and 4, and a holding head. It has an elevating mechanism 77 for moving the holding head 76 up and down, an advancing / retracting moving mechanism 78 for moving the holding head 76 forward and backward in a predetermined stroke, and a rotating mechanism 79 for rotating the holding head 76 about a longitudinal axis.

The traveling vehicle 75 rolls a pair of driving wheels 80 and a pair of driven wheels 82 driven by a driving motor 81 on rails 9 laid in the recess 8 on the floor surface, and rolls the driving wheel 80 in the roll axis direction. It is arranged movably along. A control unit 83 of the guide attaching / detaching device 7 is mounted on the rear left end of the traveling carriage 75, and a cable bear 84 on which electric wiring and the like are guided is provided between the traveling carriage 75 and the floor. .

As shown in FIG. 11 to FIG.
5, a side frame 85 is erected, on which an elevating frame 87 is guided so as to be able to move up and down, and a mounting table 90 is arranged on the elevating frame 87 so as to be movable in the front-rear direction. A rotating shaft 92 in the front-rear direction is rotatably mounted on the mounting table 90 via a pair of brackets 93, and a holding head 76 is fixedly provided at the rear end of the rotating shaft 92. The holding head 76 includes a head member 95 having a central portion in the longitudinal direction fixed to a rotation shaft 92 and a pair of pin members 96 mounted on both ends of the head member 95. The web guide 17 is held by being engaged with the pair of engagement holes 19.

In the lifting frame 87, the guide block 88 is connected to the guide rail 86 of the side frame 85.
The drive motor 100 mounted on the upper frame 97 is guided by the lifting mechanism 77 so as to freely move up and down.
Is driven, the gear unit 101, the gear unit 1
The lifting frame 87 is driven up and down via a screw shaft 102 rotatably supported by 01 and extending downward, and a nut 103 fixed to the lifting frame 87 and screwed to the screw shaft 102.

In the mounting table 90, the guide block 91 is engaged with the guide rail 89 of the mounting table 90,
When the drive motor 110 is driven by the forward / backward movement mechanism 78 by the forward / backward movement mechanism 78, the sprocket 113, the chain 114, the sprocket 115, the screw shaft 111 rotatably supported by the lifting frame 87, and the mounting table 90 Screw shaft 11 fixed to
The mounting table 90 is driven forward and backward in the front-rear direction via a nut 112 screwed into the mounting table 1. The rotation shaft 92 is rotated by a rotation motor 79 by a drive motor 120 directly connected to the rotation shaft 92.

As shown in FIG. 1, the lower roll set section 5
Has a shaft end supporting member 52 and a pair of chock receiving members 53 for supporting the pair of chocks 13 and 14. The shaft end support member 52 has substantially the same structure as the shaft end support member 20 of the upper roll set section 3. When the lower roll 4 is temporarily placed on the lower roll set section 5, the lower roll 4 including the roll body 10 is supported via a pair of chocks 13 and 14. The rotation of the roll body 10 is regulated by bringing the horizontal portion 11a into contact with the upper surface of the shaft end supporting member 52.

The operation of the web guide rearranging apparatus 1 will be described. Web guide 17 for upper roll 2 and lower roll 4
When the rolls are rearranged, the upper roll 2 (with a pair of chocks 13, 14 and a pair of web guides 17) removed from the rolling mill and transported is temporarily placed on the upper roll set section 3, and Roll 2 (1
The pair of chocks 13 and 14 and the pair of web guides 17 are temporarily placed on the lower roll set unit 5. When the upper roll 2 is temporarily placed on the upper roll set portion 3, the shafts 11 and 12 of the upper roll 2 are supported by a pair of shaft end support members 20 and 21 and a pair of chock receiving members 22 are used. The chocks 13 and 14 are temporarily placed in a supported state.

Next, the traveling carriage 75 of the pair of guide attaching / detaching devices 7 is driven to stop at the front and rear lateral positions of the lower roll 4, and the pair of web guides 17 is released from being fixed to the chocks 13, 14. In each guide attaching / detaching device 7, the holding head 76 is moved up and down by the elevating mechanism 77 to be positioned at a predetermined position, and the holding head 76 is advanced to the web guide 17 side by the advance / retreat moving mechanism 79 to drive the holding head 76. The pair of pin members 96 are engaged with the engagement holes 19 of the web guide 17, and the web guide 17 is
Hold.

Next, the web guide 17 is raised via the elevating mechanism 77, and the traveling carriage 75 is moved toward the pallet setting section 6 to convey the web guide 17 and the web set on the pallet setting section 6. Transfer to the guide storage pallet P. In this case, a pair of web guides 17 for the upper roll 2 and a pair of web guides 17 for the lower roll 4 are stored and stored in one pallet P.
In order to increase the storage efficiency on the pallet P, if necessary, the removed web guide 17 for the lower roll 2 is stored in the pallet P in an inverted state by the rotating mechanism 79.

Next, in the same manner as described above, the web guide 17 of the upper roll 2 is removed, transported and delivered to the web guide storage pallet P. 2 in the state where the web guide 17 is temporarily placed on the roll main body 3 (the shafts 11 and 12) depending on the mounting position and direction of the fixing bolt 17 of the web guide 17 with respect to the chocks 13 and 14. Chocks 13, 14 and a pair of web guides 17
It needs to be rotated 0 degrees.

In this case, the rotary head 55 on the tip end side of the cylinder 63 is rotated in the choke rotation device 23,
The temporarily placed upper roll 2 is positioned at a position corresponding to the engagement hole 16 of the chock 14, and the cylinder 63 is driven to engage the engagement hole 16. Next, the pair of chock receiving members 22 is lowered, the upper roll 2 is supported only by the pair of shaft end support members 20 and 21, and the rotary head 55 is rotated 180 degrees by the rotation driving mechanism 56, Roll body 1
With respect to 0, the pair of chocks 13 and 14 and the pair of web guides 17 are integrally rotated by 180 degrees. In the inverted state, the fixing of the web guide 17 to the pair of chocks 13 and 14 can be easily released, and thereafter, as described above, one of the upper rolls 2 is moved by the pair of guide attaching / detaching devices 7.
Each pair of web guides 17 is removed, transported, and delivered to the web guide storage pallet P. When assembling the web guide 17 to the upper and lower chocksed rolls 2 and 4, the procedure is reversed.

According to the web guide rearranging apparatus 1,
An upper roll set section 3 for temporarily placing the upper roll 2, a lower roll set section 5 for temporarily placing the lower roll 4 in the same direction as the upper roll 2 in series, and rolls at lateral positions of the two roll set sections 3, 5. A guide attaching / detaching device equipped with a holding head 76 for detachably holding the web guide 17 of each of the rolls 2 and 4 on a traveling carriage 75 movable in the axial direction, and a lifting mechanism 77 for moving the holding head 76 up and down. Since the upper roll set unit 3 and the lower roll set unit 5 are arranged in series, a traveling path of the guide attaching / detaching device 7 can be formed at the side position thereof. Since the stroke extended to the upper roll set unit 3 and the lower roll set unit 5 can be shortened, it is possible to prevent the guide attaching / detaching device 7 from being enlarged. Further, since the web guide 17 can be attached and detached by the guide attaching / detaching device 7 without depending on the overhead crane, the work efficiency of attaching and detaching the web guide 17 can be improved, and the work can be automated or semi-automated.

The holding head 76 is configured to hold the web guide 17 by engaging a pair of pin members 96 with a pair of engagement holes 19 formed in the web guide 17.
The structure of the holding head 76 is simplified, and the holding head 7
It is also advantageous in reversing the web guide 17 via 6. The guide attaching / detaching device 7 includes a rotation mechanism 79 that rotates the web guide 17 held by the holding head 76 at least 180 degrees around an axis perpendicular to the axis of the roll. Since it can be rotated at least 180 degrees around the axis perpendicular to the axis, the removed upper roll web guide 17 or lower roll web guide 17 can be stored in the storage pallet P in an inverted state. Pallet P
The pallet P can be reduced in size, and the efficiency of storage in the pallet P can be increased.

The guide attaching / detaching device 7 includes a holding head 7
6 is provided with an advance / retreat moving mechanism 78 for moving a predetermined stroke in a direction orthogonal to the axis of the roll.
Can move the holding head 76 forward and backward by a predetermined stroke in a direction orthogonal to the axis of the roll, so that the holding head 76 is moved to the upper roll 2 of the upper roll set section 3 or the lower roll 4 of the lower roll set section 5. By moving forward and backward, the web guide 17 can be attached and detached, and the configuration of the guide attaching and detaching device 7 is simplified.

A pair of shaft end supporting members 20 and 21 for supporting both ends of the upper roll 2 and a pair of variable height positions for supporting a pair of chocks 13 and 14 are provided on the upper roll set portion 3. When the web guide 17 is detached from the chocks 13 and 14 of the upper roll 2, the pair of chocks 13 and 14 are received by the pair of chock receiving members 22 to restrict the rotation. Then, the web guide 17 can be removed in a stabilized state. Then, both ends of the upper roll 2 are connected to a pair of shaft end supporting members 20 and 2.
When the pair of chock receiving members 22 are lowered in the state of being supported by 1, the pair of chocks 13, 14 and the web guide 17 can be rotated about the axis of the upper roll 2, and after the rotation, the pair of chock 13, 14 can be rotated. Is lifted to support the pair of chocks 13 and 14.

Further, the upper roll set section 3 has a rotary head 55 detachably engaged with one of the chocks 14, and the rotary head 55 is rotated to make a pair of the chocks 1.
Since the rotation drive mechanism 56 for rotating the web rolls 3 and 14 and the web guide 17 at least 180 degrees is provided, a pair of chocks are provided in a state where both ends of the upper roll 2 are supported by the pair of shaft end support members 20 and 21. When the receiving member 22 is lowered, the rotary head 55 of the rotary drive mechanism 56 is rotated to rotate the pair of chocks 13 and 14 and the web guide 17 at least 180 degrees, so that the pair of chocks 13 and
14 and the web guide 17 can be inverted.
In this manner, in a state where the pair of chocks 1 are inverted,
Release the fixation of the web guide 17 to 3, 14
The web guide 17 can be removed with the holding head 76.

It should be noted that the above-described embodiment is merely an example, and that those skilled in the art can implement various changes to the above-described mechanisms and devices without departing from the spirit of the present invention. Of course.

[0043]

According to the first aspect of the present invention, an upper roll set section for temporarily placing an upper roll, a lower roll set section for temporarily placing a lower roll in the same direction as the upper roll, and both rolls. At least a holding head for detachably holding the web guide of each roll and a lifting / lowering means for lifting and lowering the holding head are provided on a traveling vehicle movable along the roll axis direction at a side position of the set portion. Since the upper roll set section and the lower roll set section are arranged in series, a traveling path of the guide attach / detach device can be formed at the side position thereof, and the holding head is moved from the guide attach / detach apparatus to the upper roll. Since the stroke extended to the setting portion and the lower roll setting portion can be shortened, it is possible to prevent the guide attaching / detaching device from being enlarged. In addition, since the web guide can be attached and detached by the guide attaching and detaching device without depending on the overhead crane, the work efficiency of attaching and detaching the web guide can be improved, and the work can be automated or semi-automated.

According to the second aspect of the present invention, the same effect as in the first aspect is obtained, but the holding head engages the pair of pin members with the pair of engaging holes formed in the web guide to thereby form the web. Since the guide is configured to be held, the structure of the holding head is simplified, and the present invention is also advantageous in reversing the web guide via the holding head.

According to the third aspect of the invention, the same effect as in the first aspect is obtained, but the guide attaching / detaching device at least moves the web guide held by the holding head around the axis perpendicular to the axis of the roll. A rotating means for rotating by 180 degrees, and the rotating means can rotate the holding head at least 180 degrees around an axis perpendicular to the axis of the roll, so that the removed upper roll web guide or lower roll web is removed. Since the guide can be stored on the storage pallet with the guide inverted, the storage efficiency on the pallet is increased,
The size of the pallet can be reduced.

According to the fourth aspect of the present invention, the same effect as in the third aspect is obtained, but the guide attaching / detaching device includes advance / retreat moving means for moving the holding head forward / backward by a predetermined stroke in a direction perpendicular to the axis of the roll. Since the holding head can be moved back and forth by a predetermined stroke in a direction orthogonal to the axis of the roll by the reciprocating movement means, the holding head is moved back and forth to the upper roll and the lower roll of the lower roll set section. Thereby, the web guide can be attached and detached, and the configuration of the guide attaching and detaching device is simplified.

According to the fifth aspect of the present invention, the same effect as any one of the first to fourth aspects is obtained, but a pair of shafts supporting both ends of the upper roll are provided on the upper roll set portion. Since the end support member and the pair of chock receiving members having a variable height for supporting the pair of chock are provided, when removing the web guide from the chock of the upper roll, the pair of chock is used. The web guide can be removed in a state where the web guide is received by the pair of chock receiving members, is rotationally restrained, and is stabilized. Then, when the pair of chock receiving members are lowered in a state where both ends of the upper roll are supported by the pair of shaft end supporting members, the pair of chocks and the web guide are moved as in claim 6. , And after the rotation, the pair of chock receiving members can be raised to support the pair of chocks.

According to the sixth aspect of the present invention, the same effect as that of the fifth aspect is obtained, except that the upper roll set portion has a rotary head detachably engaged with one of the chocks. Since the chock rotating means for rotating the pair of chocks and the web guide by at least 180 degrees by rotation is provided, both ends of the upper roll are supported by the pair of shaft end supporting members as described in claim 5. In this state, the pair of chocks and the web guide are rotated by rotating the rotary head of the chock rotating means to rotate the pair of chocks and the web guide at least 180 degrees in a state where the pair of chock receiving members are lowered. Can be inverted. In this manner, in a state where the web guide is turned over, the web guide can be released from the pair of chocks and removed by the holding head.

[Brief description of the drawings]

FIG. 1 is a plan view of a web guide rearranging apparatus according to an embodiment.

FIG. 2 is a front view of a horizontal roll for rolling.

FIG. 3 is a right side view of a horizontal roll for rolling.

FIG. 4 is a left side view of the device including the shaft end support member.

FIG. 5 is a front view of an apparatus including a shaft end support member.

FIG. 6 is a left side view of the device including the chock receiving member.

FIG. 7 is a front view of an apparatus including a chock receiving member.

FIG. 8 is a plan view of the chock rotation device.

FIG. 9 is a front view of the chock rotation device.

FIG. 10 is a left side view of the chock rotation device.

FIG. 11 is a plan view of the web guide attaching / detaching device.

FIG. 12 is a left side view of the web guide attaching / detaching device.

FIG. 13 is a front view of the web guide attaching / detaching device.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 Web guide rearranging device for mill roll 2 Upper roll 3 Upper roll set portion 4 Lower roll 5 Lower roll set portion 7 Guide attaching / detaching device 13, 14 Chock 17 Web guide 19 Engagement hole 20, 21 Shaft end support member 22 Chock receiving member 23 Chock rotation device 55 Rotation head 56 Rotation drive mechanism 75 Traveling trolley 76 Holding head 77 Elevation mechanism 78 Advance / retreat movement mechanism 79 Rotation mechanism 96 Pin member

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Hiroki Nomoto 3-1-1 Higashi Kawasaki-cho, Chuo-ku, Kobe Kawasaki Heavy Industries, Ltd. Kobe Plant (58) Field surveyed (Int. Cl. ⁶ , DB name) B21B 28 / 00,31 / 08,39 / 16-39/18

Claims (6)

(57) [Claims] 1. A web guide is rearranged for a pair of rolling horizontal rolls in a pair of horizontal rolls, each of which includes an upper roll having chocks attached to both ends thereof and a lower roll having chocks attached to both ends thereof. In the web guide rearranging apparatus, an upper roll set unit for temporarily placing the upper roll, a lower roll set unit for temporarily placing the lower roll in the same direction as the upper roll in series, and a combination of the two roll set units At least a holding head for detachably holding a web guide of each roll, and a lifting / lowering means for lifting / lowering the holding head, are provided on a traveling carriage that is movable along a roll axis direction at a lateral position. A web guide rearrangement device for mill rolls, comprising: a device; 2. The apparatus according to claim 1, wherein the holding head is configured to hold the web guide by engaging a pair of pin members with a pair of engagement holes formed in the web guide. A web guide rearrangement device for a mill roll as described above. 3. The apparatus according to claim 1, wherein the guide attaching / detaching device includes a rotating unit that rotates the web guide held by the holding head at least 180 degrees around an axis perpendicular to the axis of the roll. 2. A web guide rearranging apparatus for a mill roll according to claim 1. 4. The web guide assembly for a mill roll according to claim 3, wherein the guide attaching / detaching device includes an advancing / retreating means for advancing / retreating the holding head in a direction perpendicular to the axis of the roll by a predetermined stroke. Replacement device. 5. A pair of shaft end supporting members for supporting both ends of the upper roll, and a pair of chock receiving members of variable height for supporting a pair of chocks, the upper roll set portion. The web guide rearrangement device for a mill roll according to any one of claims 1 to 4, further comprising: 6. The upper roll set section has a rotary head detachably engaged with one of the chocks, and rotates the rotary head to rotate the pair of chocks and the web guide at least 180 degrees. The web guide rearrangement device for a mill roll according to claim 5, further comprising a choke rotating means.