U.S. patent application number 12/734448 was filed with the patent office on 2010-11-25 for winding device and method for fixing bundle or coil in the winding device.
Invention is credited to Heinz Niehues.
Application Number | 20100294874 12/734448 |
Document ID | / |
Family ID | 40266513 |
Filed Date | 2010-11-25 |
United States Patent
Application |
20100294874 |
Kind Code |
A1 |
Niehues; Heinz |
November 25, 2010 |
WINDING DEVICE AND METHOD FOR FIXING BUNDLE OR COIL IN THE WINDING
DEVICE
Abstract
The invention relates to a winding device 10, in particular, a
hot-rolled strip winding device, for winding, in particular, a
hot-rolled strip 11 after rolling into bundles or coils 12, having
a driven winding unit 13 for winding, in particular, the hot-rolled
strip 11 and having means for fixing the bundles or coils 12,
wherein said means comprises at least one unit 14 for producing a
welded connection 16. The invention proposes that said unit 14 for
producing a welded connection 16 be configured for producing a
welded connection 16 connecting the last bundle or coil winding to
the next to the last bundle or coil winding. The invention further
relates to a method for fixing the bundles or coils 12 in a winding
device 10, in particular, a hot-rolled strip winding device, for
winding, in particular, a hot-rolled strip 11 after rolling into
the bundles or coils 12, wherein the winding of, in particular, the
hot-rolled strip 11 is carried out by means of a driven winding
unit 13, and the fixing of the bundles or coils 12 is carried out
by producing at least one welded connection 16. The invention
proposes that the fixing of the bundles or coils 12 be carried out
by producing a welded connection connecting the last bundle or coil
winding to the next to the last bundle or coil winding.
Inventors: |
Niehues; Heinz;
(Hilchenbach, DE) |
Correspondence
Address: |
ABELMAN, FRAYNE & SCHWAB
666 THIRD AVENUE, 10TH FLOOR
NEW YORK
NY
10017
US
|
Family ID: |
40266513 |
Appl. No.: |
12/734448 |
Filed: |
October 29, 2008 |
PCT Filed: |
October 29, 2008 |
PCT NO: |
PCT/EP2008/009104 |
371 Date: |
July 9, 2010 |
Current U.S.
Class: |
242/520 |
Current CPC
Class: |
B21C 47/24 20130101 |
Class at
Publication: |
242/520 |
International
Class: |
B21C 47/24 20060101
B21C047/24; B21C 47/02 20060101 B21C047/02 |
Foreign Application Data
Date |
Code |
Application Number |
Oct 31, 2007 |
DE |
10 2007 051 976.3 |
Claims
1. A winding device (10), in particular, a hot-rolled strip winding
device for winding, in particular, hot-rolled strip (11) after
rolling into bundles or coils (12), comprising a driven winding
unit (13) for winding, in particular, the hot-rolled strip (11),
and means for fixing the bundles or coils (12), wherein said means
has at least one unit (14) for producing a welded connection (16),
characterized in that the unit (14) for producing a welded
connection (16) is formed for producing the welded connection (16)
connecting the last bundle or coil winding with the next to the
last bundle or coil winding.
2. A winding device according to claim 1, characterized in that the
unit (14) for producing a welded connection (16) is formed by at
least one welding robot (15).
3. A winding device according to claim 1, characterized in that the
unit (14) for producing a welded connection (16) is formed for
producing the welded connection (16) on an other side (17) of the
coil or bundle (12).
4. A method for fixing the bundles or coils (12) produced with a
winding device (10), in particular, a hot-rolled strip winding
device for winding, in particular, a hot-tolled strip (11) after
rolling into the bundles or coils (12), wherein the winding of, in
particular, the hot-rolled strip (11) is carried out by means of a
driven winding unit (13), and the fixing of the bundles or coils
(12) is carried out by producing at least one welded connection
(16), characterized in that fixation of the bundles or coils (12)
is carried out by producing a welded connection (16) connecting the
last bundle or coil winding to the next to the last bundle or coil
winding.
5. A method according to claim 4, characterized in that fixation of
the bundles or coils (12) by producing a welded connection (16)
connecting the last bundle or coil winding to the next to the last
bundle or coil winding is carried out by at least one welding robot
(15).
6. A method according to claim 4, characterized in that the
formation of the welded connection (16) is carried out on the outer
sides of the bundles or coils (12).
7. A method according to claim 4, characterized in that the
formation of the welded connection (16) is carried out immediately
after the winding step.
Description
[0001] The invention relates to a winding device, in particular, a
hot-rolled strip winding device, for winding, in particular, a
hot-rolled strip after rolling into bundles or coils and having a
driven winding unit for winding, in particular, the hot-rolled
strip, and means for fixing the bundles or coils and including at
least one unit for producing a welded connection. The invention
further relates to a method for fixing the bundles or coils in a
winding device, in particular, a hot-rolled strip winding device,
for winding, in particular, hot-rolled strip after rolling into the
bundles or coils, wherein the winding of, in particular, the
hot-rolled strip is carried out by means of a driven winding unit,
and the fixing of the bundles or coils is carried out by producing
at least one welded connection.
[0002] Basically, the hot-rolled strip winding devices are arranged
at an end of strip hot-rolling trains and their function consists
in winding a hot-rolled strip into bundles or coils after rolling.
The strip is wound up under a tensile stress in order to produce a
sufficiently firmly wound coil and to prevent springing of the
bundle back after finishing of the winding. The tensile stress is
also necessary for bending the strip about the mandrel and thereby
to plastically deform the strip. In particular, with thick strips,
large tensile forces are necessary in order to overcome a plastic
bending torque. According to the contemporary state of the art, a
coil is bound one or several times with a binding strap immediately
after a winding device or still on the coil delivery carriage. As
an example, reference is made to the following documents:
[0003] JP 2005-279725 relates to a device for fixing the end
section of a standard coil and which is used for fixing the end
section of a steel strip coil with spot welding, and the
installation space of which is reduced, with the operational time
for fixing the end section of the steel strip coil being likewise
reduced. The device for fixing the end section of the steel strip
coil fixes this end section of the steel strip by spot welding. A
roller, which presses this steel strip, and a spot-welding device
for carrying out the spot welding are integrated in a
constructional component. The welding gun of the spot-welding
device is provided with an air cylinder for ejecting an electrode,
with the gun being arranged in the direction of a middle point of
the steel strip coil and is set exactly in the direction of the
middle point of the steel strip coil in order to spot weld the end
section of the strip steel coil.
[0004] JP 2000-007015 relates to a binding strap, a binding device,
and a binding method for coil-shaped bodies, and to the use of
binding straps for the coil-shaped bodies, wherein the binding
strap for the coil-shaped bodies should serve to prevent injury to
a worker as a result of an undesirable springing back of the
binding strap, and to enable the shortening of the time of binding
for the coil-shaped bodies, and without damaging the bound or
non-bound coil. The binding strap for coil-shaped bodies is used
for binding a steel strip coil and has a strap-like region, a
binding region, first and second partial regions, and a locking
element with a rubber-like magnet. According to the method of
binding the coil-shaped body using the binding strap, the strap has
one, non-bound end retained in this condition, while a surface
retainer is being used. As soon as the binding strap is unbound, an
end of the binding strap for coil-shaped bodies will not spring
back in an undesirable manner, whereby the worker is shielded from
injury.
[0005] DE 38 43 889 C2 relates to a pressure bar for holding strip
beginnings of axially adjacent lined-up coils during binding with a
packaging strap that should be looped about a circumference of each
coil. The portion of the pressure bar, which contacts the coils,
consists of a plurality of flexible pressure elements arranged next
to each other and individually movable in the direction of the
pressure bar the width of which in the longitudinal direction of
the pressure bar is smaller than the coil width. There is further
provided an externally operated lifter that is alignable relative
to the individual coils by being adjusted in the longitudinal
direction of the pressure bar, and that raises, upon actuation, one
or more arranged next to each other pressure elements, the total
width of which is equal to the minimal width of the packaging
strap, against a support force.
[0006] According to one embodiment, the lifter is displaceably
supported on a working beam extending parallel to the pressure bar
and is adjusted in the longitudinal direction of the pressure bar
together with the packaging strap dispenser. This construction
permits to provide a pressure bar for holding strip beginnings of
adjacent coils during binding with a packaging strap to-be-looped
about the circumference of each coil, with which a stress-free
feeding of the packaging strap occurs.
[0007] The development of new materials extends in the direction of
higher-strength working materials, in part with greater end
thicknesses, such as, e.g., for tubular goods up to 25.4 mm or
beyond. The contemporary practice to secure coils with a binding
strap or the like reaches its limits. The strength and dimensions
of the binding straps and the number of loops per coil is limited.
When the coils are not fixed with a binding strap immediately after
coiling, there is a risk that a coil springs back like a clock
spring or the coil becomes at least "loose."
[0008] Proceeding therefrom, the object of the invention is to
provide a winding device and a corresponding method for fixing the
coils in the winding device and with which a reliable fixation of
the coils wound even from thicker strips becomes possible.
[0009] With respect to the winding device, this object is achieved
by forming the unit for producing a welded connection that connects
the last coil winding to the next to the last coil winding.
Thereby, in a simple manner, by welding the windings, e.g., on the
coil delivery carriage, springing of the coil back during further
transportation is prevented. According to an advantageous
embodiment of the present invention, the unit for producing a
welded connection is formed by at least one welding robot.
[0010] According to another preferred embodiment, the unit for
producing a welded connection is formed for producing the welded
connection on an outer side of the coil or bundle.
[0011] Because the coils, as a rule, become square-edged during
further handling, the welding of the coils on the outer sides
minimizes the production losses.
[0012] With respect to the method, the object of the invention is
achieved, according to the invention, in that the fixation of the
coils is effected by producing a welded connection that connects
the last coil winding to the next to last coil winding. With regard
to the resulting advantages, in order to avoid repetition,
reference is made to the discussed advantages of the inventive
winding device.
[0013] According to the advantageous embodiment, the fixation of
coils by producing a welded connection connecting the last coil or
bundle winding to the next to the last bundle or coil winding is
carried out by at least one welding robot.
[0014] According to another embodiment of the present invention,
the formation of the welded connection is carried out on the outer
sides of the bundles or coils. With regard to resulting advantages,
reference is made to the embodiments of the winding device.
[0015] According to the last feature of the inventive method, the
formation of the welding connection is carried out immediately
after the coiling process.
[0016] Further advantages and particularities of the invention will
become apparent from the subclaims and the following description in
which an embodiment of the invention, which is shown in a single
FIGURE of the drawings, will be described in detail.
[0017] FIG. 1 shows a schematic, substantially simplified view of
an inventive winding device.
[0018] The winding device according to the invention, in
particular, a hot-rolled strip winding device is generally
designated with a reference numeral 10 and serves for winding up,
in particular, of a hot-rolled strip after rolling into coils or
bundles that are designated with a reference numeral 12 in the
single FIGURE of the drawings. The winding device 10 according to
the invention is shown schematically in FIG. 1 of the drawings. The
winding device 10 includes a driven winding unit 13 supported on a
support shaft (not shown) or the like for winding up, in
particular, a hot-rolled strip 11, and means for fixing the bundles
or coils 12 and having at least one unit 14 for producing a welded
connection 16 for connecting the last bundle or coil winding with
the next to the last bundle or coil winding. This is shown in FIG.
1 schematically in a very simplified manner. With this winding
device, in a simple manner, by welding the windings, e.g.,
springing of coils 12 back on a coil delivery carriage during
transportation is prevented. In the embodiment shown in the
drawings, the welding unit 14 for forming a welded connection 16 is
formed by at least one, in the present case, by exactly one welding
robot 15 that, by itself, can have a per se known construction.
Further, in the embodiment shown in the drawings, the unit 14 for
forming the welded connection 16 is designed for forming the welded
connection 16 on an outer side 17 of the bundle or coil 12. With
the weld of the coil 12 being formed on the outer side 17,
production losses are minimized.
[0019] The inventive method is used for fixing the bundles or coils
12 with the inventive winding device 10, in particular, with a
hot-rolled strip winding device for winding up, in particular, the
hot-rolled strip 11 after rolling into bundles or coils 12, with
the method including winding up, in particular, the hot-roller
strip 11 with a driven winding unit 13 and fixing the bundle or
coil 12 by forming the welding connection 16. According to the
invention, the fixation of the bundle or coils 12 is effected by
formation of a connecting welded connection 16 that connects the
last bundle or coil winding and a last by one bundle or coil
winding. In the shown embodiment, the fixation is carried out by
the welding robot 15. The formation of the welded connection 16
takes place on the outer side 17 of the bundle or coil 12. It is
further contemplated that the formation of the welding connection
16 takes place immediately after the winding process, e.g., on the
coil delivery carriage designated with a reference numeral 18.
LIST OF REFERENCE NUMERALS
[0020] 10 Winding device [0021] 11 Hot-rolled strip [0022] 12 Coil
[0023] 13 Winding Unit [0024] 14 Unit for forming a welded
connection [0025] 15 Welding robot [0026] 16 Welding connection
[0027] 17 Outer side (of 12) [0028] 18 Coil delivery carriage
* * * * *