Winding – tensioning – or guiding – Convolute winding of material – With spool loading or coil removal
Reexamination Certificate
1999-07-08
2002-12-03
Walsh, Donald P. (Department: 3653)
Winding, tensioning, or guiding
Convolute winding of material
With spool loading or coil removal
C242S533500, C242S533600, C242S542200
Reexamination Certificate
active
06488227
ABSTRACT:
TECHNICAL FIELD
This invention relates to a band plate winding system in rolling equipment.
BACKGROUND ART
On a line delivery side of hot rolling equipment or the like, a down coiler or carrousel type (double-drum type) winder is generally disposed as a band plate winding system for continuously winding a rolled band plate.
A conventional band plate winding system using a down coiler is shown, for example, in FIG.
36
.
As illustrated, a roller table
600
is placed on a rolling equipment line, and a pinch roll (or a deflector roll)
601
is placed near a delivery side of the rolling equipment line. A band plate
602
that has been rolled is guided to mandrels (winding drums)
603
of a plurality of down coilers placed at spaced apart locations on the delivery side of the rolling equipment line.
Around each mandrel
603
, plural pairs (3 pairs in the drawing) of arm-shaped frames
604
a
,
604
b
,
604
c
are each provided so as to be supported at one end on a fixing base
605
via a shaft
606
. Each frame is pivotable such that its front end is brought toward or away from each mandrel
603
from three directions.
On the pairs of frames
604
a
,
604
b
,
604
c
, unit rolls
607
are supported so as to come into contact with the mandrel
603
, and presser plates
608
are also supported integrally to face an outer surface of the mandrel
603
. To these frames
604
a
,
604
b
,
604
c
, driving cylinders
609
are connected for driving the frames
604
a
,
604
b
,
604
c
so as to be brought toward or away from the outer surface of the mandrel
603
.
Thus, the rolled band plate
602
is moved from the pinch roll
601
along a guide (not shown), and its front end is guided to one of the mandrels
603
. Then, with the band plate
602
being pressed against the outer surface of the mandrel
603
by the three unit rolls
607
upon driving by the driving cylinders
609
, the mandrel
603
is rotationally driven in a winding direction. In this manner, winding of the band plate
602
is performed.
After a predetermined length of the band plate
602
is taken up, the band plate
602
is cut with a cutter (not shown) disposed on the line. A front end of the remaining band plate
602
is guided from the other pinch roll
601
to the other mandrel
603
, and the band plate
602
is similarly wound. During this period, a coil of the band plate
602
is removed from the outer surface of the mandrel
603
, which has finished winding, onto a carrier trolley or the like. In this manner, winding into a coil is continued.
A conventional band plate winding system using a carrousel type winder is exemplified in FIG.
37
.
As illustrated therein, a circular support frame
610
is installed at a delivery-side side portion of a rolling equipment line so as to be rotationally driven in a vertical plane. At symmetrical positions of the support frame
610
, a plurality of mandrels
611
are supported horizontally via bearings. The drawing shows a case in which there are two mandrels
611
.
The support frame
610
is turned, as necessary, by an inherent driving system. The mandrels
611
on the support frame
610
are driven in a winding or unwinding manner by individual driving systems when a band plate is wound into or unwound from a coil C.
At the rolling equipment line side on the support frame
610
, a wrapping device
612
for a band plate
602
is provided which moves so as to surround or expose the mandrel
611
.
The wrapping device
612
is composed of a pair of arm-shaped frames
614
and a pair of arm-shaped frames
615
having one end rotatably mounted on a fixing base
613
via shafts and spreading around the mandrel
611
, a belt or chain member
617
passed in an endless form over four guide rolls
616
supported on the pairs of arm-shaped frames
614
and
615
so as to contact the mandrel
611
, and two cylinders
618
and
619
for driving both frames
614
and
615
to open and close.
The cylinders
618
and
619
have cylinder portions rotatably supported on a fixing base
620
via shafts, and have driving ends rotatably attached to side portions of the frames
614
and
615
via shafts.
The band plate coil C wound onto the other mandrel
611
is withdrawn from the mandrel
611
, and carried by a trolley
621
.
Thus, the band plate
602
that has run on a roller table
600
of the rolling equipment line and has left a pinch roll
601
is guided to the mandrel
611
within the wrapping device
612
. Then, the band plate
602
is pressed against an outer surface of the mandrel
611
under tension of the belt or chain member
617
. During this action, the band plate
602
is formed into a band plate coil C by the winding action of the mandrel
611
.
When the diameter of the band plate coil C has become large, the cylinders
618
and
619
are driven in a contracted manner to release the belt or chain member
617
. The support frame
610
is turned 180° clockwise, and brought to a halt.
Then, the belt or chain member
617
is delivered to the surroundings of an unloaded mandrel
611
. The band plate
602
, which enters the band plate coil C supported on the mandrel
611
at the symmetrical position, is cut with a shear (not shown) disposed on the line. A front end of the cut band plate
602
is guided to the empty mandrel
611
inside the belt or chain member
617
to continue similar winding for forming a band plate coil C.
A tail end of the cut band plate
602
on the band plate coil C side, on the other hand, is taken up into the band plate coil C, and then, the winding action of the mandrel
611
is stopped. The band plate coil C on the mandrel
611
is extracted by a hoisting/lowering and traveling operation of the trolley
621
, and carried to a next step.
With the band plate winding system using a down coiler shown in
FIG. 36
, a high-temperature band plate
602
that has been hot rolled can be wound at a high rate expressed as “a plate speed of about 1,000 m/min”.
However, there may be a case in which a trailing end of a preceding band plate and a leading end of a succeeding band plate on the rolling line are weld bonded, while being continuously rolled, and are continuously wound. In this case, 2 to 3 down coilers need to be arranged in tandem on the delivery side of the rolling equipment line.
This has posed the problem that the length of the rolling equipment line becomes large, and the installation of the plural down coilers inevitably increases the equipment cost.
With the band plate winding system using a carrousel type winder shown in
FIG. 37
, the provision of plural mandrels
611
on a single circular support frame
610
reduces the length of the line and the scale of equipment.
However, even when the rotational driving force of the mandrel
611
is increased, the belt or chain driven by this rotational force cannot be moved at a high speed. Thus, as high speed a run as made by the down coiler shown in
FIG. 36
is impossible with the carrousel type winding of the band plate
602
.
When a chain wrapper is used for hot rolling, for example, “a plate speed of about 250 m/min” is the maximum allowable running speed. This device cannot be used in equipment with a plate speed higher than that.
Hence, an object of the present invention is to provide a band plate winding system capable of high speed winding at a low cost.
DISCLOSURE OF THE INVENTION
To attain the above object, a band plate winding system according to the present invention comprises a carrousel type winder having a plurality of individually driven mandrels on a circular support frame provided so as to be rotationally drivable in a vertical plane; and a roll type wrapping device for supporting a plurality of unit rolls each provided so as to be movable forward and backward between a position surrounding the mandrel located at a winding start position of the winder and a retreat position.
Thus, a band plate can be wound under high speed rolling to a degree comparable to that using a conventional down coiler even during hot rolling. Also, the scale of equipment, the size of an installation space, and the cost of
Miyaguchi Kanehisa
Shibatomi Nobuhiro
Mitsubishi Heavy Industries Ltd.
Pham Minh Chau
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