JPH07102376B2 - Roll change device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a device for rearranging a roll chuck.

[Conventional technology]

When the rolls are exchanged because the rolls are worn or the size of the steel material changes, the chucks are exchanged between the exchanged rolls. Since the rolling operation is interrupted during roll replacement, it is necessary to shorten the time for changing the chuck.

Conventionally, a device as shown in FIGS. 9 and 10 has been used for such a check rearrangement. In this device, roll receiving bases (61) are provided at intervals on a fixed-side roll mounting base (60), and a pair of check transfer carriages (62) are provided on both sides of the roll mounting base (60) in the longitudinal direction of the roll mounting base. It is arranged so that it can be moved.
1) It can be moved to the position, and the chuck can be attached and detached to and from the roll placed on the roll cradle (61).

Usually, the roll is stored in a warehouse such as a three-dimensional warehouse, and the roll to which the roll chuck is attached and detached is carried in and out of the warehouse.

[Problems to be solved by the invention]

However, such a conventional device has the following problems because it has a structure in which the chuck reassembling carriage (62) is moved with respect to the fixed-side roll mounting base (60).

It is necessary to transfer all the rolls between the roll stand and the warehouse by using an overhead crane, and the transfer work takes time and effort.

Generally, in order to efficiently change the chock, the old and new rolls that should be changed are placed on the adjacent roll cradle (61), but the old roll is installed while the chock is attached to the new roll. It is extremely dangerous to hoist the rolls with an overhead crane. Therefore, when hoisting and transferring the old rolls, move the Chiotsk reshuffle cart (62) once and evacuate it from the place, and then transfer the old rolls to the cart. The work efficiency is extremely poor because it is necessary to restore the check mark and perform the mounting work.

It is necessary to install the check changing carriages (62) independently on both sides of the roll stand (60), but in order to set the check changing carriages (62) to the positions of the roll receiving stands (61), respectively. Alignment is required, and the work takes time and effort.

In order to reduce the occupied space in the factory, it is preferable to make the length of the roll stand (60) as short as possible. For this purpose, it is necessary to secure a certain number of roll receivers, and the installation interval is narrowed. There must be. However, due to the problem of the operability of the overhead crane, the distance between the roll cradle cannot be narrowed so much, and the length of the roll cradle cannot be shortened so much.

The present invention has been made in view of the above problems, and provides an apparatus that is easy to operate and transfer to and from a warehouse, and that can efficiently perform a check recombination operation, and that has a compact structure. Is its purpose.

[Means for solving problems]

For this reason, the device of the present invention includes a roll transport carriage that can travel along the longitudinal direction of the traveling base, and a plurality of roll receivers that are mounted on the roll transport carriage in the longitudinal direction and that can travel in the width direction of the roll transport carriage. It consists of a carriage, a pair of check rearrangement stands arranged opposite to each other on both sides of the roll carriage, and a carriage drawer provided on the side of the traveling base for pulling the roll carriage out of the roll carriage. This is the basic feature.

[Action]

To attach / detach the chuck to / from the roll, place the roll to be reshuffled on the roll carrier and move the roll carrier to the fixed reshuffle base on the traveling base. This is done by aligning the roll carriage on which the roll is placed at the position. To change the chock, first align the old roll removed from the rolling mill with the chock change stand as described above, remove the roll check, and then move the roll carriage to move the roll carriage to the new roll. Align the position with the chuck change stand and attach the chuck to the new roll.

The roll carriage can be pulled out from the roll transport carriage onto the carriage drawer. The old and new rolls that are to be reshuffled are placed in and out of the roll transport carriage by moving the roll carriage into and out of the carriage drawer. By moving the roll transport carriage and aligning it with the carriage pull-out portion, it is possible to put an arbitrary roll receiving carriage in and out of the carriage pull-out portion. By providing the trolley drawer to the warehouse position, the rolls can be transported between the reassembling device and the warehouse without using an overhead crane.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS.

As shown in FIG. 1, the device of the present invention comprises a roll carrier (1) capable of traveling on a traveling base, and a plurality of roll carriers (2) mounted on the roll carrier so as to be capable of traveling in the width direction thereof. ), A pair of chuck changing stations (3a) (3b) arranged so as to face each other on both sides of the roll transport carriage, and a carriage pull-out portion (4) provided on the side of the traveling base. .

The roll transport carriage (1) is a long carriage, and is arranged so as to be able to travel on a travel base (5) via rollers (11). In this embodiment, a chain (51) is provided along the longitudinal direction of the traveling base (5) as a drive mechanism for the roll transport carriage (1), while the roll transport carriage (1) has the chain (51). There is provided a sprocket (not shown) which engages with the roll transport carriage (1) so that the roll transport carriage (1) can travel on the travel base (5) by driving the chain (51). The drive mechanism is not limited to this embodiment, and an appropriate structure can be adopted.

The roll carriages (2) are arranged at intervals in the longitudinal direction of the roll transport carriage (1). Each roll carriage (2) has a concave roll mounting portion (21). Further, each roll carriage (2) has a traveling roller (22),
The roll transport carriage (1) is movable on the roll transport carriage (1) in a direction (width direction of the roll transport carriage) orthogonal to the moving direction of the roll transport carriage (1). A pulling hook member (23) is provided on a side portion of the roll carriage (2) for connecting with a connecting device, which will be described later, when the roll carriage (2) is pulled toward the carriage pulling-out portion (4).

The pair of chuck rearrangement bases (3a) (3b) are arranged so as to face each other on both sides of the traveling base (5). As shown in FIG. 4, each of the chuck rearrangement bases (3a) and (3b) has a base part (32), a chuck support base (31) provided on the base part so as to be able to advance and retreat in the traveling base direction, and this chuck. Support stand (31)
And a cylinder device (34) for driving the vehicle. The base (32) is provided with a rail (321), and the chuck support (31) travels on the rail via a roller (313). The main body of the cylinder device (34) is fixed on the base part (32), and the rod thereof is connected to the chuck support base (31). In addition, the chiyotuk support (31)
Is a lifting unit (31) that can move up and down with respect to the main body (311) equipped with rollers (313) and whose upper surface constitutes a chuck mounting unit.
2) is provided so that the height can be adjusted according to the height of the bottom surface of the chuck. The body (311) has a lifting part (3
A cylinder device (33) for raising and lowering 12) is provided.

The trolley pull-out part (4) is for pulling out the roll receiving trolley (2) to the outside of the roll transport trolley (1), and is on the traveling base (5) side so as to be orthogonal to the longitudinal direction of the roll transport trolley (1). Connected to the department.

In the present embodiment, the trolley drawer (4) is provided up to the three-dimensional warehouse (6) equipped with a so-called stacker crane (7), and by the movement of the roll carriage (2), the check rearrangement device and the three-dimensional warehouse. Rolls can be transferred between them. The trolley pull-out section (4) is composed of a traveling path (41a) for loading the roll into the warehouse and a traveling path (41b) for unloading the roll from the warehouse. The traveling path (4a)
The ends of (4b) are located on both sides of the stacker unloading stop position of the stacker crane.

Incidentally, a three-dimensional warehouse having the stacker crane described above is a stacker having a lifting table on which a main body can be moved horizontally and an object to be stored can be placed on the main body, as shown in, for example, JP-A-60-228306. A warehouse with multi-shelf storage units on both sides of the crane is installed.By moving the crane body horizontally and raising and lowering the lifting table on which the objects to be stored are placed, this can be moved to the prescribed storage unit sideways. It is positioned so that the storage object can be transferred and stored in this storage section.

Since the roll carriage (2) is pulled out from the carriage pull-out portion (4) and is driven to run on the carriage pull-out portion (4), the carriage pull-out portion (4) can be driven along the longitudinal direction thereof. A drive mechanism (41) is provided, which includes a (42) and a connecting device (43) provided midway in the chain to connect the towing hook member (23).

The connecting device (43) is connected to the chain (4) as shown in FIG.
2) a fixed member (431), a rotating member (432) pivotally attached to the fixed member (431) at one end side by a pivot (434) so as to be vertically movable, and a rotating member (432). A pair of connecting members (433a) (433b) pivotally attached to the other end side of the so as to be horizontally rotatable via an intermediate portion, and the connecting member (433
a) A spring (435) interposed between the end portions of the rotating member (433b). The connecting member (433
a) (433b) has a clamp portion projecting toward each other at the tip thereof, and the inside of the clamp portion engages with the hook portion (231) of the pulling hook member (23). .

When the roll carriage (2) is pulled out to the carriage drawer (4) by such a drive mechanism (41), the chain (42) is driven to move the coupling device (43) in the direction of the roll carriage (2). The connecting members (433a) (433b) are butted against the towing hook member (23). This allows the hook (23
1) pushes and spreads the connecting members (433a) (433b) against the elastic force of the spring (435), enters the inside of the clamp part at the tip of the connecting member, engages with this, and both clamp parts Clamp near the root of the hook (231). As a result, the roll carriage (2) and the chain (42) are connected, and the roll carriage (2) is pulled out by the chain driving section (4) and runs on it. Further, when the connection state by the connection device (43) is released, a releasing cylinder device (435) as shown in FIG. Four
The rod of (35) is extended to rotate the rotating member (432) upward, whereby the connecting member (433a) is rotated.
(433b) is disengaged from the towing hook member (43), and the connected state is released.

Next, a method of using the device having the above configuration will be described.

On the roll carriage (2), old and new rolls to be reshuffled are placed. When attaching or detaching the chuck to or from the roll, the roll transfer carriage (1) is mounted on the traveling base (5) with respect to the chuck changing stands (3a) (3b) provided on the side of the traveling base (5). Then, the roll carriage (2) on which the target roll is placed is aligned with the position of the chuck changing stand (3). The height of the lifting part (312) is adjusted according to the height of the chuck on the chuck replacement stand (3), and the chuck support base (31) on which the removed chuck is placed is attached / removed. It moves back and forth with respect to the roll carrier (1) according to the work.

The roll carriage (2) can be pulled out from the roll transport carriage (1) to the carriage drawer (4). To move the rolls in and out of the roll transport carriage, the coupling device (43) fixed to the chain (42) of the carriage pull-out part (4) is engaged with the towing hook member (23) of the roll carriage (2). , Chiang (4
2) by driving.

The cart pull-out section (4) is provided up to the three-dimensional warehouse (6), and the roll carriage (2) pulled out by the cart pull-out section (4) is horizontally attached to the stacker crane (7) to roll the stack. It can be transferred to and from (7) and can be carried in and out of the three-dimensional warehouse (6).

FIGS. 8 (a) to 8 (f) show an example of use of the device of the present invention, in which the checkout rearrangement is performed in the following procedure. In the figure, (8a) is a roll to be removed from the rolling mill and stored in the warehouse (hereinafter referred to as an old roll), (8a).
b) is a roll to be mounted on the rolling mill (hereinafter referred to as a new roll), and (9) is a roll chuck. In addition, the roll carriage (2) in the drawings is omitted except for those necessary for explanation.

The old roll (8a) and the new roll (8b) are placed on the adjacent roll carriages (2) on the roll transport carriage (1). First, as shown in FIG. Move the transport carriage (1) to align the roll carriage (2) on which the old roll (8a) has been placed with the position of the check change stand (3), and move the old roll (8a) to the roll check (9).
Remove.

As shown in FIG. 8 (b), the roll carrier (1) is moved to align the roll carrier (2) on which the new roll (8b) has been placed with the position of the check-up rearrangement base (3). ,
Attach the roll chuck (9) removed from the old roll (8a) to the new roll (8b).

As shown in FIG. 8 (c), the new roll (8b) after the chuck is attached is conveyed to the rolling mill by the overhead crane.

As shown in FIG. 8 (d), the roll transport carriage (1) is moved so that the roll carriage (2) on which the old roll is placed and the empty roll carriage (2) are pulled out by the carriage drawer ( 4)
Align to position.

As shown in FIG. 8 (e), the roll carriage (2) on which the old roll is placed and the empty roll carriage (2) are pulled out to the carriage pull-out part (4), and the stacker on the side of the three-dimensional warehouse. The new rolls (8b ') on the stacker crane are placed sideways on both sides of the crane and transferred to the empty roll carrier (2), and then the old roll (2b) on the other roll carrier (2) is transferred. 8
Transfer a) to the stacker crane and carry it into the three-dimensional warehouse.

As shown in FIG. 8 (f), the roll carriages (2) and (2) that have carried in and out the rolls to and from the three-dimensional warehouse are passed through the carriage pull-out section (4) to the roll carrier carriage (1). Turn it back on.

〔The invention's effect〕

 The present invention described above has the following effects.

Since a roll carrier and a roll carrier are used, there is no need to use an overhead crane to transfer rolls between the reshuffle position and the warehouse. It can be small.

Since the transfer by the overhead crane is not required, the danger associated with the crane transfer and the extra work for avoiding the risk are unnecessary.

Since the roll transport carriage is aligned with the pair of chuck changing stands, the alignment work can be performed more easily and efficiently than the conventional apparatus.

Since the transfer by the overhead crane is unnecessary, the installation interval of the roll carriages can be narrowed and the length of the roll carriages can be shortened. Therefore, the space occupied in the factory can be minimized.

As described above, according to the present invention, the operation of re-rolling the roll chuck can be performed efficiently and in a short time, and the space occupied in the factory can be minimized.

[Brief description of drawings]

1 to 8 show an embodiment of the present invention.
1 is an overall plan view, FIG. 2 is a view taken along the line II-II in FIG. 1, FIG. 3 is a side view of a roll carrier and its traveling base, and FIG. 4 is IV in FIG. -IV is a cross-sectional view taken along the line IV, FIG. 5 is a view taken along the line VV in FIG. 4, FIG. 6 is a partial plan view of the position of the rearrangement table, and FIG. A front view, FIG. 7 (b) are plan views of the same, and FIGS. 8 (a) to 8 (f) are explanatory views showing an operation procedure of the present apparatus. 9 and 10 show a conventional apparatus, FIG. 9 is a plan view and FIG. 10 is a front view. In the figure, (1) shows a roll carrier truck, (2) shows a roll carrier truck, (3a) and (3b) show a rearrangement table, and (4) shows a cart drawer.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Noriaki Masada 1-2-1, Marunouchi, Chiyoda-ku, Tokyo Nihon Kokan Co., Ltd. (56) Reference JP-A-48-86764 (JP, A) JP-A-SHO 52-110256 (JP, A) JP-A-63-84705 (JP, A) JP-A-61-222616 (JP, A)

Claims (1)

[Claims] 1. A roll carrier that can travel along a longitudinal direction on a running base, and a plurality of roll carriages that are mounted on the roll carrier in the longitudinal direction and that can travel in the width direction of the roll carrier. A roll check changing device comprising a pair of check changing stations arranged opposite to each other on both sides of the roll conveying cart and a cart pulling section provided on a side of a traveling base for pulling the roll receiving cart out of the roll conveying cart.