JP2005014037A - Looper device - Google Patents

Looper device Download PDF

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Publication number
JP2005014037A
JP2005014037A JP2003181804A JP2003181804A JP2005014037A JP 2005014037 A JP2005014037 A JP 2005014037A JP 2003181804 A JP2003181804 A JP 2003181804A JP 2003181804 A JP2003181804 A JP 2003181804A JP 2005014037 A JP2005014037 A JP 2005014037A
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Japan
Prior art keywords
looper
exit
equipment
carriage
rope
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.)
Withdrawn
Application number
JP2003181804A
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Japanese (ja)
Inventor
Hidenori Iida
英徳 飯田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Steel Corp
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Nippon Steel Corp
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Filing date
Publication date
Application filed by Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to JP2003181804A priority Critical patent/JP2005014037A/en
Publication of JP2005014037A publication Critical patent/JP2005014037A/en
Withdrawn legal-status Critical Current

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Abstract

<P>PROBLEM TO BE SOLVED: To provide a looper device of large capacity capable of integrating looper devices on the inlet side and the outlet side which have been independent of each other, easily remodeling a conventional equipment at a low cost, and efficiently storing and delivering steel strips without generating any deflection. <P>SOLUTION: In a process line to continuously treat steel strips, sides on the inlet side and the outlet side of treatment equipment are connected to each other via rails, an inlet side truck and an outlet side truck traveling on the rails are connected to each other so that the interval of the trucks is adjustable, and the inlet side looper equipment and the outlet side looper equipment are integrally connected to each other. The inlet side truck traveling on the rails is connected to a rope to pull the truck in the outlet side direction, the outlet side truck is connected to a rope to pull the truck in the inlet side direction, and the inlet side looper equipment is integrally connected to the outlet side looper equipment. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【0001】
【発明の属する技術分野】
本発明は鋼帯を連続的に処理するプロセスラインにおいて、酸洗設備、冷間圧延設備或いはメッキ設備や連続焼鈍設備などの処理設備に設置されるルーパー装置に関するものである。
【0002】
【従来の技術】
鋼帯を連続処理するプロセスラインにおいて、例えば、連続焼鈍設備等の処理設備では、連続処理をするために鋼帯を接続する際、或いは調質圧延機のロールを組替える際などで処理ラインを一時停止しなければならない。この一時停止に伴って処理設備中に鋼帯が滞留することになれば、鋼帯の処理目的が達成されずの材質劣化等の影響が大きい。この場合に備えて、処理設備の入側には入側ルーパー装置2を備えて鋼帯を予め貯留し、前記一時停止時に、処理設備での処理鋼帯の滞留が起きないように、即ち、連続走行が可能となるようルーパー装置に貯留している鋼帯を放出するようにしている。
【0003】
図6は処理ラインの一例を示す概略図であり、処理設備1の入側には入側ルーパー装置2を、出側には出側ルーパー装置3を備えている。鋼帯4はペイオフリール5から巻きほぐされて処理設備1を通りテンションリール6に連続的に巻き取られる。鋼帯コイルを接続する際、先行材の後端部と後行材の先端部はシャー7で切断され、溶接機8で接続されるが、この際処理ラインは一次停止するので、これに先立ち入側ルーパー装置2のルーパーロール9を作動させ滞留させておいた鋼帯4を放出することにより、処理設備1中に鋼帯が停滞することなく、連続的に走行することができる。この際、出側ルーパー装置3に鋼帯は滞留されておらず、空の状態となっている。
【0004】
このような従来のプロセスラインにおいては、処理設備の入側及び出側のルーパー装置はそれぞれ独立しているため、鋼帯貯蔵の容量は各ルーパー装置の限られた領域であり、能率が低い。例えば溶接による鋼帯接続時、入側ルーパーより鋼帯の繰り出しが行なわれ、処理設備での鋼帯は走行を継続するが、入側ルーパーの限られた容量から処理設備における鋼帯の減速が必要となる。この時でも、出側ルーパー装置における帯域が空となっており、この部分の利用が全くなされていない。出側ルーパー装置を使用している場合も同様であり、空の他方のルーパー装置のスペースを利用できれば容量が増加し、処理設備での通板速度を落とす必要もなくなる。
【0005】
特許文献1には図5に示すように入側ロール12と出側ロール13の両ロールを一つのルーパー台車14に搭載し、該ルーパー台車を入側及び出側の両ルーパー領域に亘って設置されている軌道15上を走行するルーパー装置が開示されている。
【0006】
【特許文献1】
特開2000−172422号公報
【0007】
【発明が解決しようとする課題】
上記特許文献1に開示されているルーパー台車では入側及び出側の両ルーパー領域を走行し、空きスペースなしに両領域に亘って鋼帯の貯留ができ、容量の大きいルーパー装置(領域)が得られる。しかし、この方法ではループに鋼帯を貯留する時の制御が複雑であり、即ち、入側と出側のピンチロール速度とループ台車とを連動して動かさないと制御できないという問題がある。
本発明は上記した従来の問題点を解消しようとするものであって、従来それぞれ独立であった入側及び出側のルーパー装置を一体化して容量の大きいルーパー装置とすると共に、従来設備を簡易かつ低コストで改造でき、しかも鋼帯の貯留及び払い出しにたわみなどを生じることなく効率よく実施できるルーパー装置を提供することを目的とする。
【0008】
【課題を解決するための手段】
上記目的を達成するために本発明は、以下の構成を要旨とする。即ち、
(1)鋼帯を連続的に処理するプロセスラインにおいて、処理設備の入側および出側にあるルーパー装置における側はレールを連続すると共に、該レールを走行する入側台車と出側台車とを両台車の間隔を調整可能に接続し、入側及び出側のルーパー設備を一体的に連続したことを特徴とするルーパー装置であり、
(2)鋼帯を連続的に処理するプロセスラインにおいて、処理設備の入側および出側にあるルーパー装置における走行レールを連続すると共に、該レールを走行する入側台車を出側方向に牽引するロープと接続し、かつ、出側台車を入側方向に牽引するロープと接続し、入側及び出側のルーパー設備を一体的に連続したことを特徴とするルーパー装置である。
【0009】
【発明の実施の形態】
以下に本発明を図に示す実施例に基づいて詳細に説明する。
図1は本発明におけるルーパー装置の一実施例の概略図を示し、入側ルーパー部aと出側ルーパー部bに亘って連続的に敷設された軌条15上に、入側ルーパーロール12を搭載した入側ルーパー台車16と出側ルーパーロール13を搭載した出側ルーパー台車17を連結し、走行自在に載置している。
【0010】
入側ルーパー台車16と出側ルーパー台車17とはウインチ18等を介してロープ19a,19bで連結され、入側ルーパー台車16は入側方向にセットされたウインチ20とロープ21を介して連結されている。また、出側ルーパー台車17は出側方向にセットされたウインチ22とロープ23を介して連結されている。
【0011】
連結した軌条15上を走行する入側ループ台車16および出側ルーパー台車17の連結は、上記方法に限らず、次の手段によってもよい。
すなわち、図2に示すように、ウインチ18は、台車16とロープ19aで連結し入側のルーパーを操作するウインチ18aと、台車17とロープ19bで連結し出側のルーパーを操作するウインチ18bとで構成され、ウインチ18側ウインチ18bとの間に張力調整ばね18cを設けて両ウインチを連結する。
【0012】
上記装置を用いて、入側ルーパーa側から鋼帯を貯留する場合の操作について説明する。
まず、ウインチ18を回転させてロープ19bを弛めると同時に出側のピンチロールまたはコイラー6の速度を増加させて、ルーパー台車17を右側に移動する。この時、ロープ23が弛まないようにウインチ22はロープ23を巻き上げる。ルーパー台車17が所定の位置に来ると、ウインチ18とウインチ22は停止する。
次に、入側のピンチロールまたはコイラー5の速度を増加させると同時に、ウインチ22を停止したままウインチ18を回転させ、ロープ19bを縮ませてルーパー台車16を右側に移動させる。この時、ロープ21が引き勝手になりウインチ18の回転を阻害しないようにウインチ20はブレーキを解除して、ロープ21が自由に伸びて張力が生じないようにする。
これによって、入側ルーパー側から出側ルーパー側に亘って鋼帯が滞留する。
出側ルーパー側から鋼帯を溜める場合の操作は上記の逆にすればよい。
【0013】
図3は別の実施例の概略図を示し、入側ルーパー台車16と出側ルーパー台車17はそれぞれ両サイドに繋げたロープ26a,26bを介して別々のウインチ26,25で牽引される。すなわち、入側ルーパー台車16は出側方向にセットされたウインチ25とロープ26a,26bを介して連結され、また、出側ルーパー台車17は入側方向にセットされたウインチ27とロープ28a,28b(28bは図示せず)を介して連結されている。
上記入側ルーパー台車と出側ルーパー台車に接続されているロープ26と28は互に干渉しないように間隔を設けて設置している。
【0014】
図3に示す実施例に基づいて、入側ルーパーa側から鋼帯を貯留する場合の操作について説明する。
まず、ウインチ27を回転させてロープ28を弛めると同時に出側のピンチロールまたはコイラー6の速度を増加させて、ルーパー台車17を右側に移動する。ルーパー台車17が所定の位置に来ると、ウインチ27は停止する。次に、入側のピンチロールまたはコイラー5の速度を増加させると同時に、ウインチ25を回転させてロープ26を縮ませ、ルーパー台車16を右側に移動させる。
これによって、入側ルーパー部および出側ルーパー部の広い範囲に亘って鋼帯を滞留できる。
出側ルーパー側から鋼帯を溜める場合の操作は上記の逆にすればよい。
【0015】
以上本発明を鋼帯の処理について説明したが、本発明はこれに限定されることなく、例えば金属の帯或いは合成樹脂シート等について、また処理設備としては、酸洗、メッキ処理設備、連続熱処理設備等にも適用できる。
【0016】
【発明の効果】
以上のような本発明によれば以下の効果を奏する。
すなわち、通常のループ操作と同様に、入・出側のルーパーに張力を発生させながら鋼帯等を貯留することができ、ループのゆるみに起因するスリ傷を防止できる。また、ループ操作が入側と出側で独立して行えるので、入・出ルーパーの操作を同時に行う必要がなく、従来のオペレータの技術と人数で十分対応できる。
さらに、ルーパー領域が増えたことで、例えば入側での接続操作の時間が確保でき、例えば、接続時間が従来と同じとすれば通板速度を増加できる。
なお、従来の設備改造を行う際に、実施例では軌条を接続し、ウインチを増設して操作系を変えるだけで、或いは別に実施例では、レールを接続し、ウインチを増設し、ルーパー台の高さを変えるだけで操作の基本は変更することはないので、改造費用は少なくて済む。また、多段ルーパーの場合には、一段毎に改造ができ、操業の合間に改造が可能であるから、操業を阻害することを回避するための改造遅延が生じる恐れが少ない等の利益がある。
【図面の簡単な説明】
【図1】本発明ルーパー装置の実施例を示す概要説明図。
【図2】図1の接続ウインチの別の態様を示す図。
【図3】本発明ルーパー装置の他の実施例を示す概要説明図。
【図4】図3のルーパー台車の平面を示す概要図。
【図5】従来の入・出側独立型ルーパーロールで構成するルーパー装置を示す概要説明図。
【図6】従来の入・出側ルーパーロールを搭載したルーパー台車で構成するルーパー装置を示す概要説明図。
【符号の説明】
1:処理設備
2:入側ルーパー設備
3:出側ルーパー設備
4:鋼帯
5:ペイオフリール
6:テンションリール
7:シヤー
8:溶接機
9:ルーパーロール
10:ブライドルロール
11:ステアリングロール
12:入側ルーパーロール
13:出側ルーパーロール
14:ルーパー台車
15:軌条
16:入側ルーパー台車
17:出側ルーパー台車
18a,b:ウインチ
18c:調整バネ
19:ロープ
20:ウインチ
21:ロープ
22:ウインチ
23:ロープ
24:ステアリングロール
25:ウインチ
26:ロープ
27:ウインチ
28:ロープ
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a looper device installed in processing equipment such as pickling equipment, cold rolling equipment, plating equipment or continuous annealing equipment in a process line for continuously treating steel strips.
[0002]
[Prior art]
In process lines that continuously process steel strips, for example, in processing equipment such as continuous annealing equipment, when connecting steel strips for continuous processing or when changing rolls of a temper rolling mill, Must pause. If the steel strip stays in the processing facility along with this temporary stop, the effect of material deterioration or the like, which does not achieve the processing purpose of the steel strip, is great. In this case, the steel strip is preliminarily stored with the entrance-side looper device 2 on the entry side of the treatment facility, and at the time of the temporary stop, the retention of the treatment steel strip in the treatment facility does not occur, that is, The steel strip stored in the looper device is discharged so that continuous running is possible.
[0003]
FIG. 6 is a schematic diagram showing an example of the processing line, and the processing facility 1 is provided with an entry side looper device 2 on the entry side and an exit side looper device 3 on the exit side. The steel strip 4 is unwound from the payoff reel 5, passes through the processing equipment 1, and is continuously wound around the tension reel 6. When connecting the steel strip coil, the rear end portion of the preceding material and the front end portion of the succeeding material are cut by the shear 7 and connected by the welding machine 8, but at this time, the processing line is temporarily stopped. By operating the looper roll 9 of the entry-side looper device 2 and releasing the steel strip 4 that has been retained, the steel strip 4 can be continuously run without stagnation in the processing facility 1. At this time, the steel strip is not retained in the exit side looper device 3, and is in an empty state.
[0004]
In such a conventional process line, since the looper devices on the entry side and the exit side of the processing facility are independent from each other, the capacity of steel strip storage is a limited area of each looper device, and the efficiency is low. For example, when a steel strip is connected by welding, the steel strip is unwound from the entry side looper, and the steel strip at the processing facility continues to run, but the steel strip at the treatment facility is slowed down due to the limited capacity of the entry side looper. Necessary. Even at this time, the band in the outgoing looper device is empty, and this portion is not used at all. The same applies to the case where the exit-side looper device is used. If the space of the other looper device that is empty can be used, the capacity increases, and it is not necessary to reduce the plate passing speed in the processing facility.
[0005]
In Patent Document 1, as shown in FIG. 5, both the entrance roll 12 and the exit roll 13 are mounted on one looper carriage 14, and the looper carriage is installed over both the entrance and exit looper areas. A looper device that travels on a track 15 is disclosed.
[0006]
[Patent Document 1]
Japanese Patent Laid-Open No. 2000-172422
[Problems to be solved by the invention]
In the looper carriage disclosed in Patent Document 1, the looper device (region) having a large capacity can travel in both the entrance and exit looper regions, store steel strips over both regions without empty space, and have a large capacity. can get. However, in this method, the control when storing the steel strip in the loop is complicated, that is, there is a problem that the control cannot be performed unless the input and output pinch roll speeds and the loop carriage are moved in conjunction with each other.
The present invention is intended to solve the above-mentioned conventional problems, and integrates the looper devices on the entry side and the exit side, which have been independent of each other, into a large-capacity looper device and simplifies the conventional equipment. It is another object of the present invention to provide a looper device that can be modified at low cost and that can be efficiently implemented without causing deflection or the like in the storage and discharge of steel strips.
[0008]
[Means for Solving the Problems]
In order to achieve the above object, the present invention has the following structure. That is,
(1) In a process line for continuously treating steel strips, the side of the looper device on the entry side and the exit side of the processing equipment has a continuous rail, and an entry side carriage and an exit side carriage that run on the rail are connected. It is a looper device characterized in that the distance between the two carriages is connected to be adjustable, and the looper equipment on the entry side and the exit side are continuously connected.
(2) In a process line for continuously processing a steel strip, the running rails in the looper devices on the entry side and the exit side of the processing equipment are continued, and the entry side carriage that runs on the rails is pulled in the exit direction. It is a looper device characterized in that it is connected to a rope and connected to a rope that pulls the exit cart in the entrance direction, and the entrance and exit loopers are continuously integrated.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in detail based on embodiments shown in the drawings.
FIG. 1 shows a schematic view of an embodiment of a looper device according to the present invention, and an entrance looper roll 12 is mounted on a rail 15 continuously laid across an entrance looper portion a and an exit looper portion b. The entrance side looper carriage 16 and the exit side looper carriage 17 on which the exit side looper roll 13 is mounted are connected and placed so as to be able to run.
[0010]
The entry side looper carriage 16 and the exit side looper carriage 17 are connected by ropes 19a and 19b via a winch 18 and the like, and the entry side looper carriage 16 is connected by a winch 20 set in the entry direction and a rope 21. ing. Further, the exit side looper carriage 17 is connected to the winch 22 set in the exit side direction via a rope 23.
[0011]
The connection of the entry-side loop carriage 16 and the exit-side looper carriage 17 traveling on the connected rails 15 is not limited to the above method, and may be performed by the following means.
That is, as shown in FIG. 2, the winch 18 includes a winch 18a that is connected to the carriage 16 by a rope 19a and operates the entrance looper, and a winch 18b that is connected to the carriage 17 and the rope 19b and operates the exit looper. The tension adjusting spring 18c is provided between the winch 18 side winch 18b and the winches are connected to each other.
[0012]
Operation in the case of storing a steel strip from the entrance side looper a side using the said apparatus is demonstrated.
First, the winch 18 is rotated to loosen the rope 19b and at the same time the speed of the exit pinch roll or coiler 6 is increased to move the looper carriage 17 to the right. At this time, the winch 22 winds up the rope 23 so that the rope 23 does not slack. When the looper carriage 17 comes to a predetermined position, the winch 18 and the winch 22 are stopped.
Next, simultaneously with increasing the speed of the pinch roll or coiler 5 on the entry side, the winch 18 is rotated while the winch 22 is stopped, the rope 19b is contracted, and the looper carriage 16 is moved to the right. At this time, the winch 20 releases the brake so that the rope 21 does not obstruct the rotation of the winch 18 so that the rope 21 can freely extend and no tension is generated.
As a result, the steel strip stays from the entrance looper side to the exit looper side.
The operation for collecting the steel strip from the exit side looper side may be reversed as described above.
[0013]
FIG. 3 shows a schematic view of another embodiment, and the entrance side looper carriage 16 and the exit side looper carriage 17 are pulled by separate winches 26 and 25 via ropes 26a and 26b respectively connected to both sides. That is, the entrance looper carriage 16 is connected to the winch 25 set in the exit direction via the ropes 26a and 26b, and the exit looper carriage 17 is connected to the winch 27 and the ropes 28a and 28b set in the entry direction. (28b is not shown).
The ropes 26 and 28 connected to the entry-side looper carriage and the exit-side looper carriage are installed at a distance so as not to interfere with each other.
[0014]
Based on the Example shown in FIG. 3, operation in the case of storing a steel strip from the entrance side looper a side is demonstrated.
First, the winch 27 is rotated to loosen the rope 28 and at the same time the speed of the exit pinch roll or coiler 6 is increased to move the looper carriage 17 to the right. When the looper carriage 17 comes to a predetermined position, the winch 27 stops. Next, simultaneously with increasing the speed of the entrance side pinch roll or coiler 5, the winch 25 is rotated to contract the rope 26 and the looper carriage 16 is moved to the right side.
Thereby, the steel strip can be retained over a wide range of the entrance side looper portion and the exit side looper portion.
The operation for collecting the steel strip from the exit side looper side may be reversed as described above.
[0015]
Although the present invention has been described with respect to the treatment of steel strips, the present invention is not limited to this. For example, for metal strips or synthetic resin sheets, etc., and as treatment equipment, pickling, plating treatment equipment, continuous heat treatment, etc. It can also be applied to facilities.
[0016]
【The invention's effect】
According to the present invention as described above, the following effects can be obtained.
That is, similarly to the normal loop operation, the steel strip or the like can be stored while tension is generated in the entrance / exit loopers, and scratches caused by loosening of the loop can be prevented. In addition, since the loop operation can be performed independently on the entry side and the exit side, it is not necessary to operate the entry / exit looper at the same time, and the conventional operator's technique and the number of people can sufficiently cope with it.
Further, since the looper area is increased, for example, the connection operation time on the entry side can be secured. For example, if the connection time is the same as the conventional one, the sheet passing speed can be increased.
In addition, when remodeling the conventional equipment, in the embodiment, it is only necessary to connect the rail, add a winch and change the operation system, or in another embodiment, connect a rail, add a winch, Since the basic operation is not changed by changing the height, the cost of remodeling is low. In the case of a multi-stage looper, it can be remodeled step by step and can be remodeled between operations, so there is a benefit that there is little risk of remodeling delay to avoid hindering operation.
[Brief description of the drawings]
FIG. 1 is a schematic explanatory view showing an embodiment of the looper device of the present invention.
FIG. 2 is a diagram showing another aspect of the connection winch of FIG. 1;
FIG. 3 is a schematic explanatory view showing another embodiment of the looper device of the present invention.
4 is a schematic diagram showing a plan view of the looper carriage of FIG. 3;
FIG. 5 is a schematic explanatory diagram showing a looper device configured by a conventional input / output independent looper roll.
FIG. 6 is a schematic explanatory view showing a looper device constituted by a looper cart equipped with a conventional entrance / exit looper roll.
[Explanation of symbols]
1: Processing equipment 2: Incoming looper equipment 3: Outgoing looper equipment 4: Steel strip 5: Payoff reel 6: Tension reel 7: Shear 8: Welding machine 9: Looper roll 10: Bridle roll 11: Steering roll 12: In Side looper roll 13: Outlet looper roll 14: Looper carriage 15: Rail 16: Ingress looper carriage 17: Outlet looper carriage 18a, b: winch 18c: adjustment spring 19: rope 20: winch 21: rope 22: winch 23 : Rope 24: Steering roll 25: Winch 26: Rope 27: Winch 28: Rope

Claims (2)

鋼帯を連続的に処理するプロセスラインにおいて、処理設備の入側および出側にあるルーパー装置における走行レールを連続すると共に、該レールを走行する入側台車と出側台車とを両台車の間隔を調整可能に接続し、入側及び出側のルーパー設備を一体的に連続したことを特徴とするルーパー装置。In a process line that continuously treats steel strip, the running rails in the looper devices on the entry side and the exit side of the treatment equipment are continuous, and the distance between the two carriages between the entry side carriage and the exit side carriage that run on the rails A looper device characterized in that the inlet side and the outlet side looper equipment are integrally connected in an adjustable manner. 鋼帯を連続的に処理するプロセスラインにおいて、処理設備の入側および出側にあるルーパー装置における走行レールを連続すると共に、該レールを走行する入側台車を出側方向に牽引するロープと接続し、かつ、出側台車を入側方向に牽引するロープと接続し、入側及び出側のルーパー設備を一体的に連続したことを特徴とするルーパー装置。In a process line that continuously treats steel strips, the running rails in the looper devices on the entry side and exit side of the processing equipment are continuous and connected to a rope that pulls the entry side carriage that runs on the rails in the exit direction. And a looper device connected to a rope for pulling the exit cart in the entrance direction and continuously connecting the entrance and exit loopers.
JP2003181804A 2003-06-25 2003-06-25 Looper device Withdrawn JP2005014037A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104724498A (en) * 2013-12-18 2015-06-24 五冶集团上海有限公司 Special trolley for transporting mounting looping door and application
JP6326537B1 (en) * 2017-09-05 2018-05-16 中外炉工業株式会社 Horizontal looper
CN110814059A (en) * 2019-11-27 2020-02-21 中冶天工集团天津有限公司 System for adjusting tensile force of horizontal loop steel wire rope
CN111618107A (en) * 2020-07-17 2020-09-04 佛山市君诚宇机械设备有限公司 Public loop of strip steel production line access & exit
CN113578981A (en) * 2021-07-22 2021-11-02 中国二十二冶集团有限公司 Method for threading steel wire rope in loop of cold rolling pickling section and special winch fixing frame

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104724498A (en) * 2013-12-18 2015-06-24 五冶集团上海有限公司 Special trolley for transporting mounting looping door and application
JP6326537B1 (en) * 2017-09-05 2018-05-16 中外炉工業株式会社 Horizontal looper
CN110814059A (en) * 2019-11-27 2020-02-21 中冶天工集团天津有限公司 System for adjusting tensile force of horizontal loop steel wire rope
CN111618107A (en) * 2020-07-17 2020-09-04 佛山市君诚宇机械设备有限公司 Public loop of strip steel production line access & exit
CN113578981A (en) * 2021-07-22 2021-11-02 中国二十二冶集团有限公司 Method for threading steel wire rope in loop of cold rolling pickling section and special winch fixing frame
CN113578981B (en) * 2021-07-22 2023-06-20 中国二十二冶集团有限公司 Method for threading steel wire rope in loop of cold rolling pickling section and special winch fixing frame

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