KR20180008410A - Device and method for transforming a metallic slab from a coil configuration to a sheet configuration - Google Patents

Device and method for transforming a metallic slab from a coil configuration to a sheet configuration Download PDF

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Publication number
KR20180008410A
KR20180008410A KR1020177029280A KR20177029280A KR20180008410A KR 20180008410 A KR20180008410 A KR 20180008410A KR 1020177029280 A KR1020177029280 A KR 1020177029280A KR 20177029280 A KR20177029280 A KR 20177029280A KR 20180008410 A KR20180008410 A KR 20180008410A
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KR
South Korea
Prior art keywords
metal slab
coil
metal
air knife
nozzle
Prior art date
Application number
KR1020177029280A
Other languages
Korean (ko)
Inventor
피터 프란치스코 야코부스 헤이만
Original Assignee
라우라 메탈 홀딩 비.브이.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 라우라 메탈 홀딩 비.브이. filed Critical 라우라 메탈 홀딩 비.브이.
Publication of KR20180008410A publication Critical patent/KR20180008410A/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C43/00—Devices for cleaning metal products combined with or specially adapted for use with machines or apparatus provided for in this subclass
    • B21C43/02—Devices for cleaning metal products combined with or specially adapted for use with machines or apparatus provided for in this subclass combined with or specially adapted for use in connection with drawing or winding machines or apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
    • B21C47/16—Unwinding or uncoiling
    • B21C47/18—Unwinding or uncoiling from reels or drums
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
    • B21C47/34—Feeding or guiding devices not specially adapted to a particular type of apparatus
    • B21C47/3466—Feeding or guiding devices not specially adapted to a particular type of apparatus by using specific means
    • B21C47/3475—Fluid pressure or vacuum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H16/00—Unwinding, paying-out webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/50—Auxiliary process performed during handling process
    • B65H2301/51—Modifying a characteristic of handled material
    • B65H2301/511—Processing surface of handled material upon transport or guiding thereof, e.g. cleaning
    • B65H2301/5115—Cleaning
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/17—Nature of material
    • B65H2701/173—Metal

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Cleaning In General (AREA)
  • Advancing Webs (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Winding, Rewinding, Material Storage Devices (AREA)

Abstract

The present invention relates to a device for transforming a metal slab from a coil configuration to a sheet configuration, comprising: a rotatable coil holder; At least one alignment unit; And a separator, wherein the rotatable coil holder, the at least one alignment unit, and the separator are arranged in a line. The present invention also relates to a method of transforming a metal slab from a coil configuration to a sheet configuration, comprising the steps of: A) disposing a metal slab coil on a rotatable coil holder; B) rotating the metal slab coil to loosen the coil; C) feeding the unwound metal slabs through at least one alignment unit; And D) separating the individual metal slab sheets.

Description

Device and method for transforming a metallic slab from a coil configuration to a sheet configuration

The present invention relates to a device for transforming a metal slab from a coil configuration to a sheet configuration, comprising: a rotatable coil holder; At least one alignment unit; A separator; And a lamination unit, wherein the rotatable coil holder, the at least one alignment unit, the separator, and the lamination unit are arranged in a line. The present invention also relates to a method of transforming a metal slab from a coil configuration to a sheet configuration, comprising the steps of: A) disposing a metal slab coil on a rotatable coil holder; B) rotating the metal slab coil to loosen the coil; C) feeding the unwound metal slabs through at least one alignment unit; And D) separating the individual metal slab sheets.

Flat metal sheet materials are used in the metal production industry. Typically, the sheet metal material is manufactured, shipped, and stored in large diameter slab coils (rolls) having a weight up to tens of tons to optimize production. Prior to further use of the material, the coiled slab may be deformed into a flat sheet configuration. Such a process of coiled slabs is also referred to as " decoiling ", involving unwinding the coiled slabs and then feeding the unwound metal slabs through one or more roll-forming units, The later flattened slabs are generally divided into separate metal sheets of adjustable length. Decoring is done in a production line of considerable length, where other processes may also be performed, such as, for example, edge trimming, stress relaxation processes, cutting and laminating. A typical but non-limiting decoy-line includes a loosening step; Pre-sorting step; A first alignment step; Followed by a second alignment and cutting. Thus, the decoupling of the metal slab transforms it into flat sheets of an adjustable size of the coiled slab, which can, for example, comprise process hot rolling coils, pickled and oiled coils and tear drop steel coils drop steel coils).

A problem that may arise if the coiled slab is transformed into a flat sheet configuration is that the final surface quality of the flat sheet is adversely affected by the deformation process.

It is an object of the present invention to provide an improved method and an improved device for transforming a metal slab from a coil configuration to a sheet configuration, wherein the present invention has less negative impact on the surface quality it receives in the modification process than in the prior art.

For this purpose, the present invention provides a device for transforming a metal slab from a coil configuration to a sheet configuration, the device comprising: a rotatable coil holder; Wherein the rotatable coil holder, the at least one alignment unit, the separator, and the lamination unit are arranged in a row, and the rotatable coil holder is provided with an air flow through the metal slab There is provided at least one air knife for directing into the waft. Due to the air knife acting on the metal slabs prior to the occurrence of the first alignment of the slabs, the metal slabs may contain, for example, powder, loose or substantially attached portions and / or plates, Contaminants such as rust or scale contaminants will be at least partially removed. These contaminants can be, for example, contaminants originating from oxides of metal slabs or metal slabs as well as liquid (water) and / or other non-metallic contaminants. Removal of contaminants using an air knife ensures that the contaminants do not affect the surface quality of the metal slab in the alignment unit. It can also achieve a surface quality grade higher than the surface quality of the modified metal slab according to the prior art after the deformation process. An upper surface quality rating is implemented by removing many contaminants on the metal slab during the first alignment, during which at least a localized pressure is applied on the metal slab during the alignment process. The air knife can direct the metal slab to a metal slab at a position where the metal slab is still on the coil, or onto the metal slab immediately after the slab is fed (and therefore unwound) off the coil. The device according to the invention may also be provided with one or more brushes for further cleaning metal slabs, which may cooperate with the air knife to further enhance the combined cleaning effect.

In one embodiment of the invention, the device may also comprise a rotatable coil holder, at least one alignment unit and a lamination unit arranged in alignment with the separator. After the metal slab from the coil configuration is composed of separate flat sheets of metal slabs, the sheets have to be further processed. Because the deformation device is not typically associated with the subsequent sheet processing unit, the metal sheets must be transferred from the deformation device to the position where subsequent sheet processing is to be done. The stacking of the metal sheets can enable economical transfer of the sheets.

In another embodiment of the device according to the invention, the air knife may comprise a nozzle having an air feed and at least a width corresponding to the width of the metal slab to be deformed. These nozzles enable the removal of contaminants over the entire width of the metal slab. To provide an air flow, the air knife may also be provided with one or more fans, for example, a blower. The normal size of the nozzle hole may be 2000 * 1 mm, or 1500 mm or more, and the normal air speed of the air knife may be 100 to 200 m / s, for example, 150 m / s. If at least one heater is provided in the air knife, the air blown into the metal slab can be heated, which can be useful, for example, when the metal slab contains a liquid residue. Such an air heater may be implemented, for example, as an electric heating coil.

To enable control of the strength of the air flow in contact with the metal slab, the nozzle of the air knife can be mounted on a movable nozzle carrier relative to the rotatable coil holder. This movable holder adjusts the distance of the nozzle to the metal slab so as to control the strength of the air flow in contact with the metal slab. The nozzle carrier may be provided with biasing means and at least one stop towards the rotatable coil holder for contacting the outside of the metal slab coil. In this configuration, the distance of the nozzle of the air knife to the outside of the coil is constant as the nozzle is pressed into the metal slab, and the stop is a change in diameter of the metal slab coil which changes in accordance with the state of unwinding of the remaining part of the metal slab coil So that the nozzle is as close as possible to the metal slab. The stop may be implemented as one or more wheels or rollers. For example, using a balance weight, the nozzle carrier can be pushed against the outside of the metal slab coil at a constant pressure. Furthermore, the nozzle carrier can be pivotally (pivotally) selectively connected to the rotatable coil holder to control the distance of the nozzle relative to the metal slab to a simple structure that can utilize gravity to at least partially drive the displacement of the nozzle carrier . However, alternative biasing means, such as various types of springs or cylinders, for example, which can push the nozzle carrier at a constant pressure against the outside of the metal slab coil, may also be used. For example, in order to allow the nozzle carrier to follow the decreasing diameter from the outside of the remaining metal coils by gravity (hydraulic pneumatic pressure) and to move back by the cylinder (away from the coil), by different means, It is also possible to move. To further enhance the control of the distance of the nozzle to the metal slab, an electronic control system may also be provided.

In another embodiment of the device according to the invention, an auxiliary blower may be located parallel to the air knife. Such an auxiliary blower may comprise, for example, at least one blower fan, blower feed, and blower nozzles having a width at least equal to the width of the metal slab to be deformed.

Further, the air knife may be provided with at least one inlet for extracting air. Loose contaminants due to the operation of the air knife acting on the metal slab can be removed (sucked) from the deformation device at locations that can negatively affect the equipment and / or processing quality, and the contaminants on the metal slab are settled Can be prevented.

The present invention also provides a method of converting a metal slab from a coil configuration to a sheet configuration, comprising the steps of: A) disposing a metal slab coil on a rotatable coil holder; B) rotating the metal slab coil to loosen the coil; C) feeding the unwound metal slabs through at least one alignment unit; And D) separating the individual metal slab sheets so that the air knife directs the air flow to the bulk of the metal slab before the unwound metal slab is fed through the alignment unit. The position of the air knife acting on the metal slab is such that the metal slab is still on the metal slab coil (thus forming part of the exterior of the metal slab coil) or, alternatively, the metal slab is a metal slab coil already unwound, It may be a position before the metal slab coil is supplied to the first alignment unit. This variation of the method from the coil configuration of the metal slab to the sheet configuration makes it possible to realize higher surface quality grade metal sheets. For other explanations and further advantages, reference is made to the above description of a device according to the present invention, which is also incorporated herein by reference in connection with the present variant method.

The method may also include E) laminating the individualized metal slab sheets onto at least one stack and / or the air flow may be directed to the wavy edge of the metal slab. Furthermore, a nozzle that directs the air knife to the metal slab can be moved relative to the rotatable coil holder to maintain a substantially constant distance between the metal slab and the nozzle before feeding the metal slab through the alignment unit. To enhance the cleaning effect, the air knife may be directed onto the metal slab at a pulsating variable air velocity. The air knife can also heat the air to the metal slab and / or an additional blow-drier can be used, for example, at an air temperature of 60 to 90 ° C.

The invention will be further described below on the basis of non-limiting exemplary embodiments shown in the following Figures.

Figure 1 shows a schematic side view of a device for transforming a metal slab according to the prior art from a coil configuration to a sheet configuration.
Figures 2a and 2b show two schematic embodiments of a rotatable coil holder provided with an air knife according to the invention.
Figures 3a and 3b show third embodiments of a rotatable coil holder in which an air knife according to the invention is provided at two different positions.

In the metal slab deformation device 1, the metal slab of the coil arrangement 2 is converted into the metal slab sheets 3. The coil holder 4 rotatable in accordance with the arrow P 1 holds the metal slab coil 2 and the metal slab 5 is released from the metal slab coil 2 along the arrow P 2 . After the metal slab coils 2 are unwound, the metal slabs 5 are fed through the first alignment unit 6. After being aligned for the first time, the bristles 7 clean the metal slab 5 and, after the brushes 7, the second alignment unit 8 acts on the unwound metal slab 5 . Thereafter, a straightened metal slab is cut into individual sheets by the separator 9 so as to be laminated to the lamination unit 10. [ The rotatable coil holder 4, the alignment units 6 and 8, the brushes 7, the separator 9 and the lamination unit 10 are arranged in a line. Some typical dimensions of the metal deformation device 1 are: the thickness (3 to 20 mm) of the metal slab (gauge), the maximum width of the metal slab (2100 mm), the maximum length of the metal slab (16 meters) Ton), optional provision in the line of side trimmers, and metal slab yield strengths, for example, 2000 mm width and 1000 mm thickness at 10 mm thickness.

2A shows embodiments of a rotatable coil holder 20 for holding a metal slab coil 21 outside the coil 21 on which the air knife 22 operates. The air knife 22 is movable in the radial direction (see P 3 ) with respect to the coil 21 and includes two stops 23 which come into contact with the outside of the coil 21. The cylinder 24 pushes the nozzle 25 toward the coil 21 so that the stops 23 are pressed against the coil 21. [ The nozzle 25 is connected to the gas feed 26. 2B, the air knife 27 is shown with a nozzle 28 which is pushed by the springs 29 into the metal slab 30 at a position where the metal slab 30 has already been unwound from the coil 31.

3A and 3B illustrate an air knife 40 carried by a rotatable arm 41. As shown in Fig. In Figure 3a, the coil 42 is relatively large, but in Figure 3b the coil 42 is unwound relative to the substantial portion such that the remaining coil portion 43 is substantially coaxial with the coil 42 as shown in Figure 3A And has a small diameter. The arm 41 is connected to the weight 43. This pushes the air knife (40) against the coil (42). Moreover, it is shown that the air knife 40 is connected to the fan assembly 46 through the hose 44 and the pipe 45. [ On the air knife 40, a blower-dryer 47 is also attached to the arm 41 to further enhance cleaning.

Claims (15)

A device for transforming a metal slab from a coil configuration to a sheet configuration,
A rotatable coil holder;
At least one alignment unit; And
- comprising a separator,
Wherein the rotatable coil holder, the at least one alignment unit and the separator are arranged in a line,
Characterized in that the rotatable coil holder is provided with at least one air knife for directing the air flow over the width of the metal slab. The method according to claim 1,
Wherein the device further comprises a rotatable coil holder, the at least one alignment unit, and a lamination unit arranged in line with the separator. 3. The method according to claim 1 or 2,
Wherein the air knife comprises a nozzle having an air feed and at least a width corresponding to the width of the metal slab coil to be deformed. 4. The method according to any one of claims 1 to 3,
Wherein the air knife is provided with at least one air heater. 5. The method according to any one of claims 1 to 4,
Wherein the nozzle of the air knife is mounted on a movable nozzle carrier relative to the rotatable coil holder. 6. The method of claim 5,
Wherein the nozzle carrier is provided with biasing means and at least one stop to the rotatable coil holder for contacting the outside of the metal slab coil. The method according to claim 5 or 6,
Wherein the nozzle carrier is pivotally connected to the rotatable coil holder. 8. The method of claim 7,
Wherein the pivotable nozzle carrier is additionally provided with a balance to push the nozzle at a constant pressure against the exterior of the metal slab coil. 9. The method according to any one of claims 1 to 8,
Wherein an auxiliary blower is located in parallel with the air knife, the auxiliary blower including at least one blower fan, a blower feed, and a blower nozzle having a width corresponding to at least the width of the metal slab coil to be deformed. . 10. The method according to any one of claims 1 to 9,
Wherein the air knife is provided with at least one inlet for the extraction of air. A method of transforming a metal slab from a coil configuration to a sheet configuration,
A) disposing a metal slab coil on a rotatable coil holder;
B) rotating the metal slab coil to loosen the coil;
C) feeding said unfolded metal slab through at least one alignment unit; And
D) separating the individual metal slab sheets,
Characterized in that the air knife directs the air flow to the widening of the metal slab before the unwound metal slab is fed through the alignment unit. 12. The method of claim 11,
The method further comprises: E) laminating the individualized metal slab sheets onto at least one stack. 13. The method according to claim 11 or 12,
Characterized in that the air flow towards the widening of the metal slab is heated. 14. The method according to any one of claims 11 to 13,
A nozzle for directing the air knife onto the metal slab is moved relative to the rotatable coil holder to maintain a substantially constant distance between the nozzle and the metal slab prior to feeding the metal slab through the alignment unit ≪ / RTI > 15. The method according to any one of claims 11 to 14,
Wherein the air knife is directed onto the metal slab at a pulsating variable air velocity.
KR1020177029280A 2015-04-10 2016-04-07 Device and method for transforming a metallic slab from a coil configuration to a sheet configuration KR20180008410A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
NL2014618 2015-04-10
NL2014618A NL2014618B1 (en) 2015-04-10 2015-04-10 Device and method for transforming a metal slab from coil configuration into sheet configuration.
PCT/NL2016/050240 WO2016163879A2 (en) 2015-04-10 2016-04-07 Device and method for transforming a metal slab from coil configuration into sheet configuration

Publications (1)

Publication Number Publication Date
KR20180008410A true KR20180008410A (en) 2018-01-24

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KR1020177029280A KR20180008410A (en) 2015-04-10 2016-04-07 Device and method for transforming a metallic slab from a coil configuration to a sheet configuration

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US (1) US20180311715A1 (en)
EP (1) EP3280549A2 (en)
JP (1) JP2018510786A (en)
KR (1) KR20180008410A (en)
NL (1) NL2014618B1 (en)
WO (1) WO2016163879A2 (en)

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CN111872156B (en) * 2020-07-30 2021-07-02 嘉兴金旅燕科技有限公司 Aluminum plate's veneer reeling mechanism
CN116713254B (en) * 2023-08-01 2023-10-24 山东广汇新型材料科技股份有限公司 High-purity aluminum wire ultrasonic cleaner

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US4477287A (en) * 1983-02-08 1984-10-16 Kaiser Aluminum & Chemical Corporation Liquid removal device
US4638571A (en) * 1986-04-02 1987-01-27 Cook William A Radio frequency nozzle bar dryer
JPH0539713U (en) * 1991-11-05 1993-05-28 三菱重工業株式会社 Passing device
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Also Published As

Publication number Publication date
US20180311715A1 (en) 2018-11-01
JP2018510786A (en) 2018-04-19
NL2014618A (en) 2016-10-12
WO2016163879A3 (en) 2016-12-22
EP3280549A2 (en) 2018-02-14
NL2014618B1 (en) 2017-01-20
WO2016163879A2 (en) 2016-10-13

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