JP2000028454A - Detecting apparatus for tension of sheet - Google Patents

Detecting apparatus for tension of sheet

Info

Publication number
JP2000028454A
JP2000028454A JP10214889A JP21488998A JP2000028454A JP 2000028454 A JP2000028454 A JP 2000028454A JP 10214889 A JP10214889 A JP 10214889A JP 21488998 A JP21488998 A JP 21488998A JP 2000028454 A JP2000028454 A JP 2000028454A
Authority
JP
Japan
Prior art keywords
roller
tension
sheet
weight
bearing
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.)
Granted
Application number
JP10214889A
Other languages
Japanese (ja)
Inventor
Yukimichi Matsumoto
幸道 松本
Original Assignee
Fuji Iron Works Co Ltd
株式会社不二鉄工所
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 Fuji Iron Works Co Ltd, 株式会社不二鉄工所 filed Critical Fuji Iron Works Co Ltd
Priority to JP10214889A priority Critical patent/JP2000028454A/en
Publication of JP2000028454A publication Critical patent/JP2000028454A/en
Granted legal-status Critical Current

Links

Abstract

PROBLEM TO BE SOLVED: To obtain a detecting apparatus by which the tension of only a sheet is detected in a state that the weight of a roller is zero and which can detect the tension of a fine sheet by a method wherein a swing arm is installed so as to be extended to the side horizontal direction from the bearing part of the roller and a weight is attached in such a way that the weight of the roller is balanced in a direction opposite to the roller while the middle of the arm is used as a fulcrum shaft. SOLUTION: A tension detector 3 is installed at the bearing part 2 of a roller 1 which carries and quides a sheet S. On the basis of a detected value, the torque of a winding shaft is controlled. A swing arm 4 is installed so as to be extended to the side horizontal direction from the bearing part 2 of the roller 1. A fulcrum shaft 6 is arranged in the middle P of the arm 4. A weight 6 which balances the weight of the roller 1 is attached in a direction opposite to the roller 1. Consequently, the roller 1 is balanced with the weigh 6, and it is held in a state that its weight is zero. Only the tension of a fine sheet is detected. The tension is different by the diameter of the roller 1, the running speed of the sheet, the kind of the sheet or the like. In addition, it is different by the carrying angle of the sheet to the roller 1. The weight of the roller 1 is canclled, and only the tension of the running sheet S is detected.

Description

【発明の詳細な説明】 DETAILED DESCRIPTION OF THE INVENTION

【0001】 [0001]

【発明の属する技術分野】本発明はフィルム、紙、布などのシート状物の走行時における張力を検出する装置に関するものである。 BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for detecting the tension of a sheet such as a film, paper, cloth or the like during running.

【0002】 [0002]

【従来の技術】フィルム、布、紙などシート状物(以
下、シートと総称する)を巻取り又は巻き出す巻取機あ
るいは巻出機等においては、従来走行するシートの張力
を検出し巻取機等の巻軸のトルクを制御することが通常
行われており、図3(イ)(ロ)に示す如く走行するシ
ートSを抱き込み案内するローラ1の軸受部2下部に張
力検出器3が配設された張力検出装置が用いられて走行
シートSの張力が検出されている。
2. Description of the Related Art In a winding machine or an unwinding machine which winds or unwinds a sheet (hereinafter, collectively referred to as a sheet) such as a film, a cloth, and a paper, the tension of a conventionally running sheet is detected and wound. Normally, the torque of a winding shaft of a machine or the like is controlled. As shown in FIGS. 3A and 3B, a tension detector 3 is provided below a bearing portion 2 of a roller 1 for holding and guiding a traveling sheet S. Is used to detect the tension of the traveling sheet S.

【0003】[0003]

【発明が解決しようとする課題】ところが、上記従来の
張力検出装置では、張力を検出するためのシートを抱き
込むローラ1の重量分が張力検出器3に加わり、微細な
張力を検出することが求められる張力に対してはローラ
重量分が大きすぎて充分に対応することが出来ない。と
りわけ、近時、需要が進む広巾ローラや高速回転ローラ
はローラの径を太くする必要があることから、ローラ重
量が大きくなることは避けられず、微細な張力の検出は
益々、困難な状況である。
However, in the above-described conventional tension detecting device, the weight of the roller 1 holding the sheet for detecting the tension is applied to the tension detector 3 to detect minute tension. The required weight is too large for the weight of the roller, and cannot sufficiently cope with it. In particular, recently, the demand for wide-width rollers and high-speed rotation rollers, for which demand is increasing, needs to be increased, so it is inevitable that the weight of the rollers will increase, and detection of fine tension is increasingly difficult. is there.

【0004】本発明は上述の如き実状に対処し、特にローラ重量にバランスするウエイトの利用を見出すことにより、ローラの重量を実質上、0の状態にしてシートのみの張力を検出し、微細なシート張力の検出を可能ならしめることを目的とするものである。 [0004] The present invention addresses the above-mentioned situation, and in particular, finds the use of a weight that balances the weight of the roller, thereby detecting the tension of only the sheet with the weight of the roller substantially zero and detecting the fineness of the sheet. The purpose of the present invention is to make it possible to detect the sheet tension.

【0005】 [0005]

【課題を解決するための手段】即ち、上記目的に適合す
る本発明装置は、走行するシートを抱き込み案内するロ
ーラの軸受部下部に張力検出器を設置してシートの張力
を検出する装置の構成において、前記ローラの軸受部に
スイングアームを側方に延設し、中間を支点軸にして反
対方向にローラの重量がバランスするようウエイトを取
り付けたことを特徴とする。
That is, the apparatus of the present invention which meets the above-mentioned object is a device for detecting the tension of a sheet by installing a tension detector below a bearing portion of a roller for holding and guiding a running sheet. In the configuration, a swing arm is laterally extended from a bearing portion of the roller, and a weight is attached so that the weight of the roller is balanced in the opposite direction with the middle as a fulcrum axis.

【0006】 [0006]

【作用】従来の装置による張力の検出においては、図4
(イ)(ロ)(ハ)に示すようにローラ1により案内される走行シートSが(イ)図の状態であるとき、検出されるフィルムの張力は(ロ)図のようにローラ1を中央にして左右に夫々分力T 1があり、その合力としてT 2

が張力検出器3に作用することになるが、このとき(ハ)図に見られるようにローラ重量Wはそのまま張力検出器に加わり、結局、張力検出分としては両者の合計(T 2 +W)が検出される。 Will act on the tension detector 3, but at this time, as shown in Fig. (C), the roller weight W is added to the tension detector as it is, and in the end, the tension detection amount is the sum of both (T 2 + W). Is detected. 例えばローラ1を抱き込むシートSの走行角度θを60°とし、シート張力T 1を2kgとするとき、T 2 =2×T 1 cosθ/2=2× For example, when the traveling angle θ of the seat S that holds the roller 1 is 60 ° and the seat tension T 1 is 2 kg, T 2 = 2 × T 1 cos θ / 2 = 2 ×
2×cos30°≒3.5kg。 2 x cos 30 ° ≒ 3.5 kg. これにローラ重量Wを60kgとすると、張力検出分は(T 2 +W)=3.5 Assuming that the roller weight W is 60 kg, the tension detection amount is (T 2 + W) = 3.5.
+60=63.5kgであり、制御張力分3.5kgは全検出分に対し5.5%となる。 +60 = 63.5 kg, and the control tension of 3.5 kg is 5.5% of the total detected amount. FIG. 4 shows a conventional apparatus for detecting the tension. FIG. 4 shows a conventional apparatus for detecting the tension.
As shown in (a), (b) and (c), when the traveling sheet S guided by the roller 1 is in the state shown in (a), the detected film tension is as shown in (b). There are each force component T 1 to the left and right in the middle, T 2 as a force As shown in (a), (b) and (c), when the traveling sheet S guided by the roller 1 is in the state shown in (a), the detected film tension is as shown in (b). There are each force component T 1 to the left and right in the middle, T 2 as a force
Acts on the tension detector 3. At this time, as shown in (c), the roller weight W is directly applied to the tension detector, and as a result, the sum of the two (T 2 + W) is detected as the tension detection amount. Is detected. For example, when the traveling angle θ of the sheet S holding the roller 1 is 60 ° and the sheet tension T 1 is 2 kg, T 2 = 2 × T 1 cos θ / 2 = 2 × Acts on the tension detector 3. At this time, as shown in (c), the roller weight W is directly applied to the tension detector, and as a result, the sum of the two (T 2 + W) is detected as the Tension detection amount. Is detected. For example, when the traveling angle θ of the sheet S holding the roller 1 is 60 ° and the sheet tension T 1 is 2 kg, T 2 = 2 × T 1 cos θ / 2 = 2 ×
2 × cos 30 ° ≒ 3.5 kg. Assuming that the roller weight W is 60 kg, the detected tension is (T 2 + W) = 3.5. 2 × cos 30 ° ≒ 3.5 kg. Assuming that the roller weight W is 60 kg, the detected tension is (T 2 + W) = 3.5.
+ 60 = 63.5 kg, and the control tension of 3.5 kg is 5.5% of the total detected amount. + 60 = 63.5 kg, and the control tension of 3.5 kg is 5.5% of the total detected amount.

【0007】これに対して本発明装置はローラ重量をキャンセルするバランスウエイトを組み合わせているため、ローラ重量Wはキャンセルされ、張力検出器3における張力検出分はT 2 、即ち3.5kgとなり、全検出分に対して100%で、微細な張力の検出を可能ならしめる。 On the other hand, since the apparatus of the present invention combines a balance weight for canceling the roller weight, the roller weight W is canceled, and the tension detected by the tension detector 3 becomes T 2 , that is, 3.5 kg. 100% of the detected amount enables the detection of fine tension.

【0008】 [0008]

【発明の実施の形態】以下、更に添付図面を参照し、本発明装置の具体的な態様を説明する。 DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, specific embodiments of the present invention will be described with reference to the accompanying drawings.

【0009】図1及び図2は本発明に係る装置の1例であり、張力検出装置の基本的構造としては、従来装置と同様、シートSを抱き込み案内するローラ1の軸受部2
下部に張力検出器3が設置され、張力検出器3により検出された検出値にもとづいて、図示していない巻取機、

巻出機などの巻軸のトルクを制御するようになっている。 It is designed to control the torque of the winding shaft of a winding machine or the like. FIGS. 1 and 2 show an example of a device according to the present invention. The basic structure of a tension detecting device is the same as that of a conventional device, and a bearing 2 of a roller 1 for holding and guiding a sheet S. FIGS. 1 and 2 show an example of a device according to the present invention. The basic structure of a tension detecting device is the same as that of a conventional device, and a bearing 2 of a roller 1 for holding and guiding a sheet S ..
A tension detector 3 is installed at a lower portion, and a winding machine (not shown) based on a detection value detected by the tension detector 3. A tension detector 3 is installed at a lower portion, and a winding machine (not shown) based on a detection value detected by the tension detector 3.
The torque of a winding shaft of an unwinder or the like is controlled. The torque of a winding shaft of an unwinder or the like is controlled.

【0010】そして、本発明は上記のような装置において、特にローラの軸受部2より側方にスイングアーム4
を延設せしめていて、このスイングアーム4はその中間Pに支点軸5を配して軸受部2と反対方向にローラ重量とバランスするウエイト6が取り付けられている。 A fulcrum shaft 5 is arranged in the middle P of the swing arm 4, and a weight 6 that balances the roller weight is attached in the direction opposite to the bearing portion 2. 従ってローラ1はあたかもその重量が0の状態に保持されるようになっており、張力検出器3では前記作用の欄で説明したように微細なシートのみの張力が検出される。 Therefore, the roller 1 is maintained in a state where its weight is 0, and the tension detector 3 detects the tension of only a fine sheet as described in the section of action. The present invention relates to an apparatus as described above, and more particularly, to a swing arm 4 located laterally of a roller bearing 2. The present invention relates to an apparatus as described above, and more particularly, to a swing arm 4 located laterally of a roller bearing 2.
The swing arm 4 is provided with a fulcrum shaft 5 at an intermediate point P thereof, and a weight 6 that balances the weight of the roller in a direction opposite to the bearing portion 2. Therefore, the roller 1 is held as if its weight is zero, and the tension detector 3 detects the tension of only the fine sheet as described in the section of the operation. The swing arm 4 is provided with a fulcrum shaft 5 at an intermediate point P thereof, and a weight 6 that balances the weight of the roller in a direction opposite to the bearing portion 2. Therefore, the roller 1 is held as if its weight is zero, and the tension detector 3 detects the tension of only the fine sheet as described in the section of the operation.

【0011】なお、検出される張力はローラ径、シート
の走行速度、シートの種類等により、更にはローラへの
抱き込み角度により種々異なるが、何れに対してもロー
ラ重量はキャンセルされ走行シートSのみの張力の検出
がなされる。そこで、この検出にもとづいて巻取機、巻
出機を始めシートを処理する各装置の巻軸のトルクを制
御し、張力が制御された処理を行うことができる。
The detected tension varies depending on the roller diameter, the traveling speed of the sheet, the type of the sheet, and the like, and furthermore, depending on the angle of wrapping around the roller. Only the tension is detected. Therefore, based on this detection, the torque of the winding shaft of each device for processing a sheet, such as a winder and an unwinder, is controlled, and a process in which the tension is controlled can be performed.

【0012】[0012]

【発明の効果】本発明は以上のように走行するシートを
抱き込み案内するローラの軸受部下部に張力検出器を設
置してシートの張力を検出する装置において、前記ロー
ラの軸受部にスイングアームを側方に延出し、その中間
を支点軸にして反対方向にローラの重量がバランスする
よう、ウエイトを取り付けた構成よりなり、バランスウ
エイトの取り付けによりローラの重量をあたかも0の状
態として軸受部下部の張力検出器で張力検出を行うこと
ができるので、ローラ重量に関係なく、微細なシート張
力を検出することが可能となり、従来装置に比し、張力
検出精度を著しく向上せしめる効果を奏する。
According to the present invention, there is provided an apparatus for detecting a sheet tension by installing a tension detector below a bearing portion of a roller for holding and guiding a running sheet as described above. To the side, and the weight is attached so that the weight of the roller is balanced in the opposite direction with the middle as the fulcrum axis. By attaching the balance weight, the weight of the roller is reduced to zero and the lower part of the bearing part Since the tension can be detected by the tension detector of the above, fine sheet tension can be detected irrespective of the roller weight, and the effect of significantly improving the tension detection accuracy as compared with the conventional apparatus can be obtained.

【0013】また、本発明はローラ重量を実質上0の状
態として検出するため、近時、大径化する広巾ローラ、
高速回転ローラに対しても、そのローラ重量にかかわら
ず、微細な張力を検出することができる利点があり、シ
ートの張力検出により巻軸のトルクを制御する各種装置
に用いて頗る有効である。
In addition, the present invention detects a roller weight as substantially zero, so that a wide roller that has recently increased in diameter has been used.
The high-speed rotating roller also has the advantage of being able to detect fine tension regardless of the roller weight, and is very effective when used in various devices that control the torque of the reel by detecting the sheet tension.

【図面の簡単な説明】 [Brief description of the drawings]

【図1】本発明に係る装置の1例を示す側面概要図である。 FIG. 1 is a schematic side view showing an example of an apparatus according to the present invention.

【図2】上記図1の装置の平面概要図である。 FIG. 2 is a schematic plan view of the apparatus of FIG. 1;

【図3】従来の張力検出装置例を示す図で、(イ)は側面図、(ロ)は正面図である。 3A and 3B are diagrams showing an example of a conventional tension detecting device, wherein FIG. 3A is a side view and FIG. 3B is a front view.

【図4】(イ)(ロ)(ハ)は張力検出状況を示す説明図である。 FIGS. 4A, 4B, and 4C are explanatory diagrams showing tension detection situations.

【符号の説明】 [Explanation of symbols]

S シート 1 ローラ 2 軸受部 3 張力検出器 4 スイングアーム 5 アーム支点軸 6 バランスウエイト P アーム中間点(支点) S sheet 1 Roller 2 Bearing unit 3 Tension detector 4 Swing arm 5 Arm fulcrum shaft 6 Balance weight P Arm midpoint (fulcrum)

─────────────────────────────────────────────────────
────────────────────────────────────────────────── ─── ────────────────────────────────────────────────── ───

【手続補正書】 [Procedure amendment]

【提出日】平成11年5月21日(1999.5.2
1)
[Submission date] May 21, 1999 (1999.5.2
1)

【手続補正1】 [Procedure amendment 1]

【補正対象書類名】明細書[Document name to be amended] Statement

【補正対象項目名】特許請求の範囲[Correction target item name] Claims

【補正方法】変更[Correction method] Change

【補正内容】 [Correction contents]

【特許請求の範囲】 [Claims]

【手続補正2】 [Procedure amendment 2]

【補正対象書類名】明細書[Document name to be amended] Statement

【補正対象項目名】0005 [Correction target item name] 0005

【補正方法】変更[Correction method] Change

【補正内容】 [Correction contents]

【0005】 [0005]

【課題を解決するための手段】即ち、上記目的に適合す
る本発明装置は、走行するシートを抱き込み案内するロ
ーラの軸受部下部に張力検出器を設置してシートの張力
を検出する装置の構成において、前記ローラの軸受部に
スイングアームを側方に水平方向に延設し、その中間を
支点軸にして前記ローラの反対方向にローラの重量がバ
ランスするようウエイトを取り付けたことを特徴とす
る。
That is, the apparatus of the present invention which meets the above-mentioned object is a device for detecting the tension of a sheet by installing a tension detector below a bearing portion of a roller for holding and guiding a running sheet. in the structure, and characterized in that the swing arm to the bearing portion of the roller is extended horizontally to the side, the weight of the opposite direction to the roller of the roller to the middle fulcrum shaft is fitted with weights to balance I do.

【手続補正3】 [Procedure amendment 3]

【補正対象書類名】明細書[Document name to be amended] Statement

【補正対象項目名】0010 [Correction target item name] 0010

【補正方法】変更[Correction method] Change

【補正内容】 [Correction contents]

【0010】そして、本発明は上記のような装置において、特にローラの軸受部2より側方にスイングアーム4
水平方向に延設せしめていて、この水平に延びるスイ<br/>ングアーム4はその中間Pに支点軸5を配して前記ロー Is extended in the horizontal direction, and the swing arm 4 extending horizontally has a fulcrum shaft 5 arranged at an intermediate P thereof, and the low
と反対方向にローラ重量とバランスするウエイト6が取り付けられている。 Weight 6 to balance the roller weight in a direction opposite to the La is attached. 従ってローラ1はウエイト6とバ Therefore, the roller 1 has a weight 6 and a bar.
ランスされてあたかもその重量が0の状態に保持されるようになっており、張力検出器3では前記作用の欄で説明したように微細なシートのみの張力が検出される。 It is lanced and its weight is maintained in a state of 0, and the tension detector 3 detects the tension of only a fine sheet as described in the section of action. The present invention relates to an apparatus as described above, and more particularly, to a swing arm 4 located laterally of a roller bearing 2. The present invention relates to an apparatus as described above, and more particularly, to a swing arm 4 located laterally of a roller bearing 2.
The have allowed extending in the horizontal direction, the row Sui <br/> Nguamu 4 extending to the horizontal is arranged pivot shaft 5 to the intermediate P The have allowed extending in the horizontal direction, the row Sui <br/> Nguamu 4 extending to the horizontal is arranged pivot shaft 5 to the intermediate P
Weight 6 to balance the roller weight in a direction opposite to the La is attached. Therefore roller 1 and the weight 6 bar Weight 6 to balance the roller weight in a direction opposite to the La is attached. Therefore roller 1 and the weight 6 bar
The lance is held as if the weight is zero, and the tension detector 3 detects the tension of only the fine sheet as described in the section of the operation. The lance is held as if the weight is zero, and the tension detector 3 detects the tension of only the fine sheet as described in the section of the operation.

【手続補正4】 [Procedure amendment 4]

【補正対象書類名】明細書[Document name to be amended] Statement

【補正対象項目名】0012 [Correction target item name] 0012

【補正方法】変更[Correction method] Change

【補正内容】 [Correction contents]

【0012】 [0012]

【発明の効果】本発明は以上のように走行するシートを抱き込み案内するローラの軸受部下部に張力検出器を設置してシートの張力を検出する装置において、前記ローラの軸受部にスイングアームを側方に水平に延設し、その中間を支点軸にして前記ローラの反対方向にローラの重量がバランスするよう、ウエイトを取り付けた構成よりなり、ローラ、支点軸、バランスウエイトは水平なス
イングアームにあって水平位置を保持してバランスウエイトの取り付けによりローラの重量をあたかも0の状態として軸受部下部の張力検出器でシートのみの張力検出を行うことができるので、ローラ重量に関係なく、微細なシート張力を検出することが可能となり、従来装置に比し、張力検出精度を著しく向上せしめる効果を奏する。 By holding the horizontal position on the ing arm and attaching the balance weight, the tension of the roller can be detected by the tension detector at the bottom of the bearing as if the weight of the roller is 0, so the tension of only the seat can be detected regardless of the weight of the roller. It is possible to detect fine sheet tension, and it has the effect of significantly improving the tension detection accuracy as compared with the conventional device. According to the present invention, there is provided an apparatus for detecting a sheet tension by installing a tension detector below a bearing portion of a roller for holding and guiding a running sheet as described above. was extended horizontally to the side, the middle and in the fulcrum shaft so as to balance weight in the opposite direction to the roller of the roller, made of construction fitted with weights, roller, fulcrum shaft, balance weight is horizontal scan According to the present invention, there is provided an apparatus for detecting a sheet tension by installing a tension detector below a bearing portion of a roller for holding and guiding a running sheet as described above. Was extended horizontally to the side, the middle and in the fulcrum shaft so as to balance weight in the opposite direction to the roller of the roller, made of construction fitted with weights, roller, fulcrum shaft, balance weight is horizontal scan
By holding the horizontal position in the inking arm and attaching the balance weight, the weight of the roller can be set to zero and the tension detector below the bearing can detect the tension of only the sheet. This makes it possible to detect minute sheet tension, and has an effect of significantly improving the tension detection accuracy as compared with the conventional apparatus. By holding the horizontal position in the inking arm and attaching the balance weight, the weight of the roller can be set to zero and the tension detector below the bearing can detect the tension of only the sheet. This makes it possible to detect minute sheet tension , and has an effect of significantly improving the tension detection accuracy as compared with the conventional apparatus.

Claims (1)

    【特許請求の範囲】[Claims]
  1. 【請求項1】 走行するシートを抱き込み案内するロー
    ラの軸受部下部に張力検出器を設置してシートの張力を
    検出する装置において、前記ローラの軸受部にスイング
    アームを側方に延設し、その中間を支点軸にして反対方
    向にローラの重量がバランスするようウエイトを取り付
    けたことを特徴とするシートの張力検出装置。
    1. A device for detecting the tension of a sheet by installing a tension detector below a bearing portion of a roller that embraces and guides a running sheet, wherein a swing arm extends laterally from the bearing portion of the roller. A sheet tension detecting device, wherein a weight is attached so that the weight of the roller is balanced in the opposite direction with the intermediate point as a fulcrum axis.
JP10214889A 1998-07-13 1998-07-13 Detecting apparatus for tension of sheet Granted JP2000028454A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10214889A JP2000028454A (en) 1998-07-13 1998-07-13 Detecting apparatus for tension of sheet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10214889A JP2000028454A (en) 1998-07-13 1998-07-13 Detecting apparatus for tension of sheet

Publications (1)

Publication Number Publication Date
JP2000028454A true JP2000028454A (en) 2000-01-28

Family

ID=16663252

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10214889A Granted JP2000028454A (en) 1998-07-13 1998-07-13 Detecting apparatus for tension of sheet

Country Status (1)

Country Link
JP (1) JP2000028454A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101005503B1 (en) * 2008-06-30 2011-01-04 명신산업기계(주) Ragger and operating method of ragger
CN103193102A (en) * 2013-03-26 2013-07-10 桂林电器科学研究院有限公司 Floating roll device for film production device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101005503B1 (en) * 2008-06-30 2011-01-04 명신산업기계(주) Ragger and operating method of ragger
CN103193102A (en) * 2013-03-26 2013-07-10 桂林电器科学研究院有限公司 Floating roll device for film production device

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