CN114555254A - Foreign matter removing device - Google Patents
Foreign matter removing device Download PDFInfo
- Publication number
- CN114555254A CN114555254A CN202080072468.5A CN202080072468A CN114555254A CN 114555254 A CN114555254 A CN 114555254A CN 202080072468 A CN202080072468 A CN 202080072468A CN 114555254 A CN114555254 A CN 114555254A
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- CN
- China
- Prior art keywords
- suction
- foreign matter
- removal apparatus
- unit
- foreign
- Prior art date
- Legal status (The legal status 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 status listed.)
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Links
- 239000000463 material Substances 0.000 claims description 18
- 230000002093 peripheral effect Effects 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 description 18
- 239000010959 steel Substances 0.000 description 18
- 239000000126 substance Substances 0.000 description 16
- 239000000428 dust Substances 0.000 description 6
- 239000000356 contaminant Substances 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000010960 cold rolled steel Substances 0.000 description 2
- 239000013013 elastic material Substances 0.000 description 2
- 230000007257 malfunction Effects 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 208000023504 respiratory system disease Diseases 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- -1 scales Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/0042—Devices for removing chips
- B23Q11/0067—Devices for removing chips chip containers located under a machine or under a chip conveyor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0269—Cleaning
- B21B45/0275—Cleaning devices
- B21B45/0287—Cleaning devices removing solid particles, e.g. dust, rust
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/04—Cleaning by suction, with or without auxiliary action
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/04—Cleaning by suction, with or without auxiliary action
- B08B5/043—Cleaning travelling work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/04—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling, e.g. by brushing
- B21B45/06—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling, e.g. by brushing of strip material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B2015/0064—Uncoiling the rolled product
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cleaning In General (AREA)
Abstract
The present invention relates to a foreign matter removing apparatus which can sufficiently capture and remove foreign matters even under a certain suction force, thereby improving removing efficiency, the foreign matter removing apparatus comprising: a conveyor belt for receiving foreign matter; a suction unit disposed at one side of the conveyor belt and sucking foreign matters through a suction port; and a moving unit for selectively moving the conveyor belt.
Description
Technical Field
The invention relates to a foreign matter removing device, which can improve the foreign matter removing efficiency under a certain suction force.
Background
For example, a cover body is provided to cover a portion where foreign matter is concentrated, so as to remove foreign matter such as scale detached from the surface of the hot-rolled steel sheet or prevent the foreign matter from splashing. A conventional structure is to provide a surrounding type cover as a cover to increase the capacity of the dust collector to suck foreign substances.
In addition, for example, the following method is also employed: the air nozzle is provided between the drums, and strong air is injected to the steel sheet to guide the foreign matters such as splashed scale to the lower cover side by the cover so as to capture and remove the fallen foreign matters.
Such a cover cannot be arranged close to the steel plate due to the movement of the steel plate, but is arranged at a distance from the steel plate. Therefore, the foreign matter removal efficiency is extremely low.
Further, it is structurally difficult to mount a cover for removing foreign matter falling off from the lower surface of the steel plate in some places. In these places, although a canopy (canopy) shaped cover body suction port is simply provided, the removal efficiency is lowered due to the scattering and accumulation of foreign matter, insufficient suction, and the like.
Related prior art is the invention disclosed in korean patent laid-open publication No. 794746B 1.
Disclosure of Invention
Technical problem
The invention aims to provide a foreign matter removing device which can fully capture and remove foreign matters under certain suction force, thereby improving the foreign matter removing efficiency.
Technical scheme
The foreign material removing apparatus according to an embodiment of the present invention may include: a conveyor belt for receiving foreign matter; a suction unit disposed at one side of the conveyor belt and sucking foreign matters through a suction port; and a moving unit for selectively moving the conveyor belt.
Effects of the invention
According to the present invention, the foreign substances such as scales, surface treatment powders, and contaminants having different sizes, which are deposited by free fall, are guided to the suction port of the suction unit, so that the removal efficiency can be improved even in the performance of the conventional dust collector.
Therefore, according to the present invention, frequent cleaning or equipment aging or malfunction can be avoided, and not only productivity can be improved, but also improvement of the environment around the equipment and prevention of respiratory diseases of the operator can be greatly facilitated.
Drawings
Fig. 1 is a perspective view schematically illustrating a foreign material removing apparatus according to an embodiment of the present invention.
Fig. 2 is a reverse perspective view of fig. 1.
Fig. 3 is a perspective view illustrating a moving state of a conveyor belt of the foreign substance removal device in fig. 1.
Fig. 4 is a schematic view of a modification of the foreign substance removal apparatus according to one embodiment of the present invention.
Detailed Description
Hereinafter, the present invention will be described in detail with reference to the exemplary drawings. In assigning reference numerals to components of respective drawings, it should be noted that the same components are assigned the same reference numerals as much as possible even in different drawings.
Fig. 1 is a perspective view of a foreign material removing apparatus according to an embodiment of the present invention, and fig. 2 is a reverse perspective view of fig. 1.
According to an embodiment of the present invention, a foreign material removing apparatus includes: a conveyor belt 10 for receiving foreign matter; a suction unit 20 disposed at one side of the conveyor belt, for sucking foreign matters through a suction port 21; and a moving unit 30 for selectively moving the conveyor belt.
For example, the foreign matter removing apparatus according to an embodiment of the present invention may be disposed below an uncoiler (pay off reel) that starts uncoiling when a hot-rolled or cold-rolled steel sheet is uncoiled (uncoiling).
Therefore, according to the foreign material removing apparatus of one embodiment of the present invention, it is possible to remove and treat scale, unreacted powder or other contaminants for special steel, and the like generated on foreign materials such as a steel plate of carbon steel, etc. detached from the lower surface of the steel plate and accumulated on the bottom of the apparatus.
However, an application example of the foreign substance removal apparatus according to one embodiment of the present invention is not limited thereto.
The conveyor belt 10 may include: a bracket 11; a pair of rollers 12 disposed on both sides of the holder; and a belt member 13 wound around the drum.
At least one of the pair of rollers 12 is connected to a motor (not shown) or has a motor (not shown) built therein at one end thereof, so that a driving force can be applied to the belt member 13. An example of driving the belt member using a motor roller having a motor and a gear mounted in a tubular roller body as the roller is shown in the drawings.
For example, the belt member 13 may be made of an elastic material such as rubber or urethane resin, silicone, or the like. The strap member is slightly smaller in size than the bracket 11.
The conveyor belt 10 is used to receive and collect foreign matter such as scale that falls freely. Preferably, the belt member 13 does not sag, and its upper surface forms a uniform flat surface.
The suction unit 20 is a substantially pipe-shaped member, and is disposed on one side of the conveyor belt 10, and the size of the suction port 21 is preferably larger than or equal to the size of the conveyor belt. More specifically, when a direction perpendicular to the moving direction of the belt member 13 of the conveyor belt is defined as a width direction, the width-direction length of the suction port corresponds to at least the width-direction length of the belt member.
The suction unit 20 may be formed such that the length in the width direction or the length in the thickness direction becomes smaller as it goes upward.
In addition, it is preferable that the suction unit 20 is inclined at a predetermined angle, but not limited thereto, and the suction unit may be horizontally disposed as long as there is a margin of space.
Further, as shown in fig. 1, the foreign matter removing apparatus according to an embodiment of the present invention may include an inclined plate 40 covering an upper side of the suction unit 20 and inclined together with or independently of the suction unit so that the foreign matter falling freely can smoothly slide toward the conveyor belt 10 along the inclined surface.
The inclination angle of the inclined plate 40 with respect to the horizontal plane is preferably about 30 to 90 degrees, but is not limited thereto, and may be determined according to the surface roughness of the inclined plate, the viscosity of foreign matter, or the like.
When the inclination angle of the inclined plate 40 is less than 30 degrees with respect to the horizontal plane, it is preferable to provide a vibration member 50 (see fig. 4) for applying vibration to the inclined plate. As such a vibration member, an electric drive type vibrator (vibrator), an electronic drive type vibrator, an air drive type vibrator, or the like can be used. Such a vibrating member may be arranged on the opposite side of the inclined plate.
On the opposite side of the suction port 21, the suction unit 20 may be connected to a suction pipe, not shown in the drawings, and the suction pipe may be connected to a suction device such as a suction fan or a vacuum pump, a dust collector, or the like.
In the foreign material removing apparatus according to one embodiment of the present invention having the structure as described above, the conveyor belt 10 can continuously convey the foreign materials accumulated on the belt members 13 thereof. The foreign matter is transported to the suction port 21 of the suction unit 20 by the movement of the belt member and sucked.
As shown in more detail in fig. 2, the moving unit 30 is provided on the base unit 31 and is connected to the frame 11 of the conveyor belt 10 so that the entire conveyor belt can be linearly moved.
For example, the base unit 31 is a member formed substantially in a frame shape, and functions to support the moving unit 30 and guide the moving unit 30 to move. The base unit is not limited to being formed in a frame shape.
The moving unit 30 may be disposed above the base unit 31, and an actuating lever 32 (see fig. 4) of the moving unit may be coupled below the bracket 11.
As such a moving unit 30, a hydraulic cylinder or an electric actuator or the like having an actuating rod 32 may be employed.
In order to guide the relative movement between the base unit 31 and the conveyor belt 10 and to ensure smooth movement, a rail member 33 may be provided between the base unit and the support 11 of the conveyor belt. For example, by providing the slide unit on the carriage and the rail member on the base unit such that the slide unit slides along the rail member, the carriage and the conveyor belt can be smoothly linearly moved by the driving of the moving unit 30.
Fig. 3 is a perspective view illustrating a moving state of a conveyor belt of the foreign substance removal device in fig. 1.
Thus, as shown, the base unit 31 may support the conveyor belt 10 for receiving foreign objects.
For example, when the foreign material removing apparatus according to one embodiment of the present invention is applied to unwinding, the conveyor belt may be slid into a space between the lower side of the suction unit 20 and the upper surface of the base unit 31 under the actuation of the moving unit 30 to release the interference with the newly installed steel coil.
Fig. 4 is a schematic view of a modification of the foreign substance removal apparatus according to one embodiment of the present invention.
As shown in the drawings, in the foreign material removing apparatus according to one embodiment of the present invention, the belt member 13 of the conveyor belt 10 may further include a plurality of blades 14 formed substantially perpendicularly on the outer circumferential surface of the belt member 13, configured to be spaced apart from each other by a predetermined interval, and extending over the entire width of the belt member.
These vanes 14 may be formed integrally with the band member 13 or may be formed of an elastic material at least similar to the band member and then engaged.
When the belt member 13 moves toward the suction port 21 of the suction unit 20 by driving of the drum 12, each of the vanes 14 contacts or fits in the suction port of the suction unit to close the open surface of the suction port. Therefore, vacuum is temporarily formed in the suction unit, and due to such vacuum, for example, even under a certain suction force of the existing dust collector, the suction unit can sufficiently suck and capture foreign matters, and remove the foreign matters through the suction pipe.
Each blade 14 is driven by the belt member 13 to advance and elastically deform (i.e., bend) after contacting the suction port 21 of the suction unit 20, thereby passing under the suction unit, and thus the belt member can continuously circulate without much problem.
Hereinafter, the operation of the foreign material removing apparatus according to one embodiment of the present invention will be briefly described.
For convenience, a description will be given taking as an example a case where the foreign matter removing device according to one embodiment of the present invention is disposed below an uncoiler 2 (see fig. 4) where uncoiling of a hot-rolled or cold-rolled steel sheet 1 (see fig. 4) is started.
As described above, since the steel plate is moving, the cover body cannot be in contact with the steel plate or disposed close to the steel plate. Therefore, although foreign substances such as scales, powder, and contaminants fall from the lower surface of the steel plate to contaminate the environment around the facility, the conventional cover body depends only on the suction force of the dust collector, thereby reducing the removal efficiency of the foreign substances.
In the foreign matter removal device according to one embodiment of the present invention, when the preparation for unwinding the steel plate 1 is ended, the moving unit 30 is activated so that the conveyor belt 10 overlapped with the base unit 31 is moved to the advanced position.
As the unwinding starts, foreign matter falling freely off the lower surface of the steel plate 1 gradually accumulates on the belt member 13 of the conveyor belt 10. Part of the foreign matter falls onto the belt member via the inclined plate 40.
At least one of the pair of rollers 12 of the conveyor belt 10 drives the belt member 13 so that the belt member can circulate around the roller continuously through the suction opening 21 of the suction unit 20.
As the belt member 13 moves toward the suction port 21 of the suction unit 20, foreign substances accumulated on the upper surface of the belt member are conveyed to the suction port.
As described above, since the foreign substances are transported to the vicinity of the suction port 21 of the suction unit 20, the suction unit can suck and capture the foreign substances even under a certain suction force, and remove the foreign substances via the suction pipe.
On the other hand, when the plurality of blades 14 are formed on the outer circumferential surface of the belt member 13 of the conveyor belt 10, each blade contacts or is fitted to the suction port 21 of the suction unit 20 to close the open surface of the suction port, so that a vacuum is temporarily formed in the suction unit, and the suction unit can sufficiently suck and capture foreign substances even under a certain suction force due to such vacuum, and remove the foreign substances through the suction pipe.
Each of the vanes 14 is elastically deformed (i.e., bent) by the driving of the belt member 13 after contacting the suction port 21 of the suction unit 20, thereby passing below the suction unit.
When the unwinding of the steel sheet 1 is finished to install a new coil, the moving unit 30 is activated so that the support 11 of the conveyor belt 10 slides to a space between the lower side of the suction unit 20 and the upper surface of the base unit 31 to a retreated position as guided by the rail member 33 so as not to interfere with the coil.
As described above, according to the present invention, the foreign substances such as scales, surface treatment powders, and contaminants having different sizes, which are freely dropped and accumulated, are guided to the suction port of the suction unit, so that the removal efficiency can be improved even in the performance of the conventional dust collector.
Therefore, according to the present invention, frequent cleaning or equipment aging or malfunction can be avoided, and not only productivity can be improved, but also improvement of the environment around the equipment and prevention of respiratory diseases of the operator can be greatly facilitated.
The above description is only for exemplary purposes to describe the technical idea of the present invention, and various modifications and alterations can be made by those skilled in the art to which the present invention pertains without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical ideas of the present invention but to describe the present invention, and the scope of the technical ideas of the present invention is not limited by these embodiments. The scope of the invention should be construed in accordance with the accompanying claims, and all technical ideas within the scope and range of equivalents thereof should be construed as falling within the scope of the invention.
Industrial applicability
As described above, the present invention is advantageous in removing foreign matter such as scale detached from the surface of the hot-rolled steel sheet or preventing the foreign matter from splashing.
Claims (11)
1. A foreign material removing apparatus, comprising:
a conveyor belt for receiving foreign matter;
a suction unit disposed at one side of the conveyor belt and sucking foreign matters through a suction port; and
a moving unit for selectively moving the conveyor belt.
2. The foreign matter removal apparatus according to claim 1,
the conveyer belt includes:
a support;
a pair of rollers disposed on both sides of the holder; and
a belt member wound around the pair of rollers.
3. The foreign material removal apparatus according to claim 2,
at least one of the pair of rollers is connected with a motor at one end or internally provided with a motor.
4. The foreign material removal apparatus according to claim 2,
the length of the suction port in the width direction is greater than or equal to the length of the belt member in the width direction.
5. The foreign material removal apparatus according to claim 2,
the moving unit is disposed above the base unit, and an actuating lever of the moving unit is connected to the bracket.
6. The foreign material removal apparatus according to claim 5,
a rail member is arranged between the base unit and the bracket.
7. The foreign matter removal apparatus according to claim 2, further comprising:
a plurality of blades vertically formed on an outer peripheral surface of the band member, arranged apart from each other, and extending in a width direction of the band member.
8. The foreign material removal apparatus according to claim 7,
the vane contacts or is fitted to the suction port of the suction unit to close an open surface of the suction port, and then elastically deforms to pass through the suction unit.
9. The foreign matter removal apparatus according to claim 1, further comprising:
and an inclined plate covering an upper side of the suction unit, for sliding the foreign matter toward the conveyor belt along an inclined surface.
10. The foreign matter removal apparatus according to claim 9, comprising:
a vibration member for applying vibration to the inclined plate.
11. The foreign material removal apparatus according to any one of claims 1 to 10,
the suction unit is connected to a suction pipe on the opposite side of the suction port,
the suction pipe is connected to a suction device.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2019-0129029 | 2019-10-17 | ||
KR1020190129029A KR102255819B1 (en) | 2019-10-17 | 2019-10-17 | Apparatus for removing foreign material |
PCT/KR2020/010500 WO2021075682A1 (en) | 2019-10-17 | 2020-08-07 | Apparatus for removing foreign material |
Publications (1)
Publication Number | Publication Date |
---|---|
CN114555254A true CN114555254A (en) | 2022-05-27 |
Family
ID=75537870
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202080072468.5A Pending CN114555254A (en) | 2019-10-17 | 2020-08-07 | Foreign matter removing device |
Country Status (4)
Country | Link |
---|---|
JP (1) | JP7322292B2 (en) |
KR (1) | KR102255819B1 (en) |
CN (1) | CN114555254A (en) |
WO (1) | WO2021075682A1 (en) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SU1148814A1 (en) * | 1983-12-12 | 1985-04-07 | Новочеркасский Ордена Трудового Красного Знамени Политехнический Институт Им.Серго Орджоникидзе | Shelter for reloading station of belt conveyer |
JPH0572397U (en) * | 1992-03-09 | 1993-10-05 | 大日本印刷株式会社 | Scrap discharge device of punching machine |
KR20010000074U (en) * | 1999-06-02 | 2001-01-05 | 이구택 | Device for removing dust on strips |
JP2002172707A (en) * | 2000-12-07 | 2002-06-18 | Sumitomo Chem Co Ltd | Method and apparatus for manufacturing sheet product without foreign adherent |
JP2006062079A (en) * | 2005-08-24 | 2006-03-09 | Hatanaka Kogyo:Kk | Paper dust removing device for corrugated board sheet |
CN203862702U (en) * | 2014-05-25 | 2014-10-08 | 常州市星龙滚针轴承制造有限责任公司 | Clean cold rolling mill |
WO2017039213A1 (en) * | 2015-09-04 | 2017-03-09 | 주식회사 포스코 | Foreign material removal device |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0454870Y2 (en) * | 1989-07-31 | 1992-12-22 | ||
JP2002326136A (en) * | 2001-04-26 | 2002-11-12 | Enshu Ltd | Special cover for chip disposal |
JP2004216478A (en) * | 2003-01-10 | 2004-08-05 | Tohoku Tamura Koki:Kk | Method of removing paper dust/blanking waste of paper blanked product, and device for removing the same |
US7073661B2 (en) * | 2004-03-04 | 2006-07-11 | Tennant | Self cleaning conveyor with roller scraper and debris reduction skirt |
KR101966723B1 (en) * | 2017-08-21 | 2019-08-13 | 박재경 | Collecting apparatus for aronia fruit |
-
2019
- 2019-10-17 KR KR1020190129029A patent/KR102255819B1/en active IP Right Grant
-
2020
- 2020-08-07 CN CN202080072468.5A patent/CN114555254A/en active Pending
- 2020-08-07 WO PCT/KR2020/010500 patent/WO2021075682A1/en active Application Filing
- 2020-08-07 JP JP2022522297A patent/JP7322292B2/en active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SU1148814A1 (en) * | 1983-12-12 | 1985-04-07 | Новочеркасский Ордена Трудового Красного Знамени Политехнический Институт Им.Серго Орджоникидзе | Shelter for reloading station of belt conveyer |
JPH0572397U (en) * | 1992-03-09 | 1993-10-05 | 大日本印刷株式会社 | Scrap discharge device of punching machine |
KR20010000074U (en) * | 1999-06-02 | 2001-01-05 | 이구택 | Device for removing dust on strips |
JP2002172707A (en) * | 2000-12-07 | 2002-06-18 | Sumitomo Chem Co Ltd | Method and apparatus for manufacturing sheet product without foreign adherent |
JP2006062079A (en) * | 2005-08-24 | 2006-03-09 | Hatanaka Kogyo:Kk | Paper dust removing device for corrugated board sheet |
CN203862702U (en) * | 2014-05-25 | 2014-10-08 | 常州市星龙滚针轴承制造有限责任公司 | Clean cold rolling mill |
WO2017039213A1 (en) * | 2015-09-04 | 2017-03-09 | 주식회사 포스코 | Foreign material removal device |
Also Published As
Publication number | Publication date |
---|---|
KR20210045687A (en) | 2021-04-27 |
KR102255819B1 (en) | 2021-05-25 |
JP2022552967A (en) | 2022-12-21 |
JP7322292B2 (en) | 2023-08-07 |
WO2021075682A1 (en) | 2021-04-22 |
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