JP6527981B1 - Turn bar - Google Patents

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JP6527981B1
JP6527981B1 JP2018060507A JP2018060507A JP6527981B1 JP 6527981 B1 JP6527981 B1 JP 6527981B1 JP 2018060507 A JP2018060507 A JP 2018060507A JP 2018060507 A JP2018060507 A JP 2018060507A JP 6527981 B1 JP6527981 B1 JP 6527981B1
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porous body
cylindrical porous
turn bar
cylindrical
roll
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JP2019172400A (en
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賢姿郎 伊藤
賢姿郎 伊藤
さおり 鬼束
さおり 鬼束
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Tanken Seal Seiko Co Ltd
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Tanken Seal Seiko Co Ltd
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Priority to JP2018060507A priority Critical patent/JP6527981B1/en
Priority to PCT/JP2019/011227 priority patent/WO2019188516A1/en
Priority to CN201980021774.3A priority patent/CN111989277B/en
Priority to KR1020207030418A priority patent/KR102652666B1/en
Priority to TW108110303A priority patent/TWI799552B/en
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Publication of JP6527981B1 publication Critical patent/JP6527981B1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/24—Registering, tensioning, smoothing or guiding webs longitudinally by fluid action, e.g. to retard the running web
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/02—Conveying or guiding webs through presses or machines
    • B41F13/06—Turning-bar arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/32—Arrangements for turning or reversing 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
    • B65H2406/00—Means using fluid
    • B65H2406/10—Means using fluid made only for exhausting gaseous medium
    • B65H2406/11—Means using fluid made only for exhausting gaseous medium producing fluidised bed
    • B65H2406/111—Means using fluid made only for exhausting gaseous medium producing fluidised bed for handling material along a curved path, e.g. fluidised turning bar
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/10—Means using fluid made only for exhausting gaseous medium
    • B65H2406/11—Means using fluid made only for exhausting gaseous medium producing fluidised bed
    • B65H2406/113—Details of the part distributing the air cushion
    • B65H2406/1131—Porous material

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Steering Controls (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)

Abstract

【課題】低い製造コストでありながらウェブを安定して支持できるターンバーを提供すること。【解決手段】本発明によれば、ウェブ状Ｗのワークを非接触でガイドするターンバーであって、多孔質体で構成された円筒状のロール本体２と、ロール本体の外表面からエアを吐出させるエア吐出機構４、６ｂ、１４と、を備え、ロール本体が、軸線方向端面同士が連結された複数の筒状多孔質体１２、１２・・・によって構成されているターンバーが提供される。【選択図】図１An object of the present invention is to provide a turn bar capable of stably supporting a web with low manufacturing cost. According to the present invention, a turn bar for guiding a web-like work without contact is provided, which discharges air from the cylindrical roll body 2 made of a porous body and the outer surface of the roll body. There is provided a turn bar including an air discharge mechanism 4, 6b, and 14 for causing the roll body to be constituted by a plurality of cylindrical porous bodies 12, 12... In which axial end faces are connected to each other. [Selected figure] Figure 1

Description

本発明は、ターンバーに関し、詳細には、長尺フィルム等のウェブを非接触でガイドするターンバーに関する。   The present invention relates to a turn bar, and more particularly to a turn bar for guiding a web, such as a long film, in a contactless manner.

上流側のロールから連続的に送出されたウェブを、所定経路に沿って搬送しながら処理し、下流側のロールに巻き取る処理方式が知られている。このような処理工程では、ウェブは、巻送りロール、ガイドロール、巻取りロール等の多くのロールによって規定される経路に沿って搬送されながら、印刷、ラミネート、乾燥、裁断等の処理等を受ける。   There is known a processing method in which a web continuously delivered from an upstream roll is processed while being conveyed along a predetermined path, and wound on a downstream roll. In such processing steps, the web is subjected to processing such as printing, lamination, drying, cutting, etc. while being conveyed along a path defined by many rolls such as a winding roll, a guide roll, a winding roll, etc. .

これらのロールの多くは、金属製あるいはゴム製であり、ウェブは、これらロールの表面と接触しながら搬送されることになる。このため、これらロールから離脱したパーティクルがウェブに転写され、ウェブから製造される最終製品の品質を低下させるという問題があった。   Many of these rolls are made of metal or rubber, and the web will be conveyed in contact with the surface of these rolls. For this reason, there has been a problem that the particles separated from these rolls are transferred to the web and the quality of the final product produced from the web is degraded.

さらに、搬送中のウェブとロールとの速度差、ウェブに作用する張力、ウェブとロールの間の摩擦力により、ウェブに傷、折れシワ、伸び等が生じ、最終製品の歩留まりを低下させるという問題もあった。そして、このような問題は、搬送経路上でウェブの搬送方向を反転させるターンバーの部分で顕著であった。   In addition, the difference in speed between the web and the roll during transport, the tension acting on the web, and the frictional force between the web and the roll cause the web to be damaged, creased, stretched, etc., thereby reducing the yield of the final product. There was also. And such a problem was remarkable in the part of the turn bar which reverses the conveyance direction of web on a conveyance path.

このような問題に対処するため、空気膜を利用した非接触式のガイドロール（ターンバー）が提案されている（特許文献１）。この特許文献１のガイドロールでは、表面に多数の気体噴出孔が形成された中空体の内部に加圧気体を流入させることにより、中空体の表面の気体噴出孔から気体を噴出させ、長尺状フィルムを中空体の外周面に沿って非接触で支持し、長尺状フィルムの搬送経路を反転させている。   In order to cope with such a problem, a non-contact type guide roll (turn bar) using an air film has been proposed (Patent Document 1). In the guide roll of Patent Document 1, the pressurized gas is caused to flow into the hollow body having many gas injection holes formed on the surface, whereby the gas is ejected from the gas injection holes on the surface of the hollow body. Film is supported in a non-contact manner along the outer peripheral surface of the hollow body, and the transport path of the long film is reversed.

特開平８−２４５０２８号公報Japanese Patent Application Laid-Open No. 8-245028

上記ガイドロール（ターンバー）は、非接触で長尺状フィルムを反転させることができる等の長所を有しているが、機械加工で噴出孔を形成する場合には、噴出孔の径が大きくなるため、噴出孔の直上と周辺での圧力差が大きくなる。この結果、ウェブがバタツキ易くなり、ウェブを安定して支持できなくなる等の問題が発生している。また、レーザ加工で噴出孔を形成する場合には、製造コストが高くなるという問題が発生している。   The above-mentioned guide roll (turn bar) has the advantage of being able to invert the long film in a non-contact manner, etc., but when forming the jet holes by machining, the diameter of the jet holes becomes large. Because of this, the pressure difference immediately above and around the ejection port becomes large. As a result, the web is prone to flapping, and problems such as the inability to stably support the web occur. Moreover, when forming a jet nozzle by laser processing, the problem that a manufacturing cost becomes high has generate | occur | produced.

本発明はこのような点に鑑みてなされたものであり、低い製造コストでありながらウェブを安定して支持できるターンバーを提供することを目的としている。   The present invention has been made in view of these points, and it is an object of the present invention to provide a turn bar capable of stably supporting a web at low manufacturing cost.

本発明によれば、
ウェブ状のワークを非接触でガイドするターンバーであって、
多孔質体で構成された円筒状のロール本体と、
前記ロール本体の外表面からエアを吐出させるエア吐出機構と、を備え、
前記ロール本体が、軸線方向端面同士が連結された複数の筒状多孔質体によって構成されている、
ことを特徴とするターンバーが提供される。 According to the invention
It is a turn bar that guides web-like work without contact.
A cylindrical roll body composed of a porous body,
And an air discharge mechanism for discharging air from the outer surface of the roll body,
The roll body is constituted by a plurality of cylindrical porous bodies in which axial end faces are connected to each other.
A turn bar is provided which is characterized.

このような構成によれば、ウェブを非接触で支持するロール本体として、全体に微細な孔を有している多孔質体が利用されるので、ロール本体の外周面全体から均一に加圧気体を確実に噴出させることが可能であり、且つ、気体を噴出させる孔を加工により形成する工程が不要となる。   According to such a configuration, a porous body having fine pores throughout is used as a roll body for supporting the web in a non-contacting manner, so pressurized gas can be uniformly applied from the entire outer peripheral surface of the roll body. Can be reliably ejected, and the process of forming the holes for ejecting the gas is not necessary.

本発明の他の好ましい態様によれば、
前記エア吐出機構が、外周面に前記円筒状のロール本体が取付けられている中空シャフトを備え、
前記筒状多孔質体が、隣接する筒状多孔質体と接着により接合され、隣接する前記筒状多孔質体との接合部近傍の内周面に凹部を有している。 According to another preferred aspect of the invention:
The air discharge mechanism includes a hollow shaft having the cylindrical roll body attached to an outer peripheral surface thereof,
The cylindrical porous body is bonded to the adjacent cylindrical porous body by adhesion, and has a recess on the inner circumferential surface in the vicinity of the junction with the adjacent cylindrical porous body.

製造工程においてロール本体を構成する筒状多孔質体同士を接着剤で接合する際、接合部分からはみ出した余剰な接着剤が、ウェブ支持面となる筒状多孔質体の表面側に流出すると、ウェブ支持面からの加圧エアの吹出しが阻害される等して、ウェブ支持に支障をきたすことになる。   When the cylindrical porous bodies constituting the roll main body are joined with an adhesive in the manufacturing process, if the excess adhesive which has run out from the joint portion flows out to the surface side of the cylindrical porous body serving as the web supporting surface, The blowing of pressurized air from the web supporting surface may be impeded, which may affect the web supporting.

しかしながら、上記のような構成によれば、筒状多孔質体同士を接着剤で接合する際、接着剤が、隣接する筒状多孔質体との接合部近傍の内周面に設けられた凹部に収容されるため、凹部内の接着剤により、筒状多孔質体がロール本体に対してより強固に接合されている。   However, according to the configuration as described above, when joining the cylindrical porous bodies with an adhesive, the adhesive is provided on the inner circumferential surface in the vicinity of the junction with the adjacent cylindrical porous body. The cylindrical porous body is more strongly joined to the roll body by the adhesive in the recess.

本発明の他の好ましい態様によれば、
前記凹部が、前記筒状多孔質体の内周面で円周方向に延びる環状溝を構成している。 According to another preferred aspect of the invention:
The said recessed part comprises the cyclic | annular groove extended in the circumferential direction with the internal peripheral surface of the said cylindrical porous body.

本発明の他の好ましい態様によれば、
一の筒状多孔質体の他の筒状多孔質体と接合されている軸線方向端面と、前記他の筒状多孔質体の前記一の筒状多孔質体と接合されている端面とが、相補的な凹凸形状を備えている。 According to another preferred aspect of the invention:
An axial end face joined to another cylindrical porous body of one cylindrical porous body, and an end face joined to the one cylindrical porous body of the other cylindrical porous body , Complementary unevenness shape is provided.

このような構成によれば、筒状多孔質体同士の接合部分において径方向の強度が増大し、接続された筒状多孔質体によって構成されるロール本体に中空シャフトからの加圧気体による力が作用しても、ロール本体が接続部分で破損することが回避される。   According to such a configuration, the strength in the radial direction is increased at the joint portion between the cylindrical porous bodies, and the force by the pressurized gas from the hollow shaft is applied to the roll body constituted by the connected cylindrical porous bodies. Even if it acts, breakage of the roll body at the connection portion is avoided.

本発明の他の好ましい態様によれば、
一の筒状多孔質体の他の筒状多孔質体と接合されている軸線方向端面に少なくとも１つの環状凸部が形成され、
前記他の筒状多孔質体の前記一の筒状多孔質体と接合されている端面に前記環状凸部と相補的な環状凹部が形成されている。 According to another preferred aspect of the invention:
At least one annular convex portion is formed on an axial end face joined to another cylindrical porous body of one cylindrical porous body,
An annular concave portion complementary to the annular convex portion is formed on an end face of the other cylindrical porous body joined to the one cylindrical porous body.

このような構成によれば、筒状多孔質体同士の接続部分における径方向の強度がより増大し、接続された筒状多孔質体によって構成されるロール本体に、径方向内方から径方向外方に向かってより大きな力が作用しても、ロール本体が接続部分で破損することが回避される。   According to such a configuration, the strength in the radial direction at the connection portion between the cylindrical porous bodies is further increased, and the roll main body constituted by the connected cylindrical porous bodies is provided from the radially inner side in the radial direction. Damage to the roll body at the connection is avoided even if a greater force acts outward.

本発明の他の好ましい態様によれば、
一の筒状多孔質体が他の筒状多孔質体と接合されている軸線方向端面に少なくとも１つの環状のバッファ溝が形成されている。 According to another preferred aspect of the invention:
At least one annular buffer groove is formed on an axial end face where one tubular porous body is joined to another tubular porous body.

このような構成によれば、筒状多孔質体同士を接着剤で接合する際、余剰な接着剤が、隣接する筒状多孔質体と接合されている筒状多孔質体の軸線方向端面に形成された環状のバッファ溝に収容されるため、ウェブ支持面となる筒状多孔質体の表面側に流出し難くなり、ターンバーの品質が向上する。   According to such a configuration, when joining the cylindrical porous bodies with an adhesive, the axial end face of the cylindrical porous body in which the excess adhesive is joined to the adjacent cylindrical porous body Since it is accommodated in the formed annular buffer groove, it becomes difficult to flow out to the surface side of the cylindrical porous body which becomes a web support surface, and the quality of a turn bar improves.

本発明の他の好ましい態様によれば、
前記筒状多孔質体が、多孔質カーボンで構成されている。 According to another preferred aspect of the invention:
The cylindrical porous body is made of porous carbon.

本発明の他の好ましい態様によれば、
前記筒状多孔質体の各々が長手方向中央位置で円周方向に延びる加圧空気流路を備え、
前記中空シャフトが、径方向に延びて前記加圧空気流路に接続され、前記加圧空気流路に加圧エアを供給する径方向流路を有している。 According to another preferred aspect of the invention:
Each of the cylindrical porous bodies comprises a pressurized air flow passage extending circumferentially at a central longitudinal position,
The hollow shaft has a radial flow passage extending radially and connected to the pressurized air flow passage and supplying pressurized air to the pressurized air flow passage.

本発明によれば、低い製造コストでありながらウェブを安定して支持できるターンバーが提供される。   According to the present invention, there is provided a turn bar capable of stably supporting a web with low manufacturing cost.

本発明の好ましい実施形態のターンバーの概略的な斜視図である。1 is a schematic perspective view of a turn bar according to a preferred embodiment of the present invention. 図１のII-II線に沿った断面図である。FIG. 2 is a cross-sectional view taken along the line II-II in FIG. 一端側に位置する筒状多孔質体近傍を拡大した図面である。It is drawing which expanded the cylindrical porous body vicinity located in one end side. 図１のIV-IV線に沿った断面図である。FIG. 4 is a cross-sectional view taken along the line IV-IV of FIG. 図１のターンバーの作用を説明するための断面図である。It is sectional drawing for demonstrating the effect | action of the turn bar of FIG. 図１のターンバーの製造工程を説明する図面である。It is drawing explaining the manufacturing process of the turn bar of FIG. 図１のターンバーの製造工程を説明する図面である。It is drawing explaining the manufacturing process of the turn bar of FIG. 図１のターンバーの製造工程を説明する図面である。It is drawing explaining the manufacturing process of the turn bar of FIG. 図１のターンバーの変形例の筒状多孔質体の構成を示す断面図である。It is sectional drawing which shows the structure of the cylindrical porous body of the modification of the turn bar of FIG. 図１のターンバーの他の変形例の筒状多孔質体の構成を示す断面図である。It is sectional drawing which shows the structure of the cylindrical porous body of the other modification of the turn bar of FIG.

以下、本発明の本発明の好ましい実施形態を図面に沿って詳細に説明する。図１は、本発明の好ましい実施形態のターンバー１の概略的な斜視図であり、図２は、図１のII-II線に沿った断面図である。   Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a schematic perspective view of a turn bar 1 according to a preferred embodiment of the present invention, and FIG. 2 is a cross-sectional view taken along the line II-II of FIG.

本実施態様のターンバー１は、長尺状フィルム等の長尺ウェブを搬送する搬送経路で、ウェブの搬送方向を反転させる反転部分等に配置され、非接触でウェブを支持し、その搬送方向を変えるために使用される部材である。   The turn bar 1 of the present embodiment is a conveyance path for conveying a long web such as a long film, and is disposed at a reverse portion or the like for reversing the conveyance direction of the web, supports the web in a noncontacting manner, It is a member used to change.

図１および図２に示されているように、ターンバー１は、略円筒状の形状を備え、多孔質体である多孔質カーボンで構成された略円筒状のロール本体２と、外周面にロール本体２が取付けられている略円筒状の中空シャフト４とを備えている。   As shown in FIGS. 1 and 2, the turn bar 1 has a substantially cylindrical shape, and a substantially cylindrical roll main body 2 made of porous carbon which is a porous body, and a roll on the outer peripheral surface And a substantially cylindrical hollow shaft 4 to which the main body 2 is attached.

中空シャフト４は、軸線方向中央の中空の大径部６と、大径部６の両端に配置された中空の小径部８、１０とを備えている。大径部６は、ロール本体２の内径と略等しい外径を有し、軸線方向両端部分に径方向外方に向かって延びるフランジ６ａ、６ａを備え、両フランジ６ａ、６ａ間に、ロール本体２が取付けられている。また、大径部６の内部空間は、小径部８、１０の内部空間と流体連通し、小径部を通して導入された加圧エアが、大径部６の内部空間に流入するように構成されている。   The hollow shaft 4 is provided with a hollow large diameter portion 6 at the center in the axial direction and hollow small diameter portions 8 and 10 disposed at both ends of the large diameter portion 6. The large diameter portion 6 has an outer diameter substantially equal to the inner diameter of the roll body 2 and is provided with flanges 6a, 6a extending outward in the radial direction at both axial direction end portions, and between the flanges 6a, 6a, the roll body 2 is attached. Further, the internal space of the large diameter portion 6 is in fluid communication with the internal space of the small diameter portions 8 and 10, and pressurized air introduced through the small diameter portion is configured to flow into the internal space of the large diameter portion 6 There is.

本実施態様のターンバー１では、ロール本体２は、３つの筒状多孔質体１２、１２、１２によって形成されている。各筒状多孔質体１２、１２、１２は、同一形状を有し、隣接する筒状多孔質体の軸線方向端面同士が接着剤による接着により接合されることにより、ロール本体２を形成している。ロール本体２、詳細には各筒状多孔質体１２、１２、１２は、接着剤によって中空シャフトに対して接合されている。   In the turn bar 1 of the present embodiment, the roll body 2 is formed by three cylindrical porous bodies 12, 12, 12. Each cylindrical porous body 12, 12, 12 has the same shape, and the end faces in the axial direction of the adjacent cylindrical porous bodies are joined by adhesion with an adhesive to form the roll main body 2 There is. The roll body 2, in particular each cylindrical porous body 12, 12, 12 is bonded to the hollow shaft by an adhesive.

図３は、一端側の筒状多孔質体１２近傍を拡大した図面であり、図４は、筒状多孔質体１２単体の径方向断面図である。   FIG. 3 is an enlarged view of the vicinity of the cylindrical porous body 12 at one end side, and FIG. 4 is a radial sectional view of the cylindrical porous body 12 alone.

図２ないし図４に示されているように、各筒状多孔質体１２は、内周面の長手方向中央位置に、周方向に伸びる環状の加圧空気流路１４を備えている。   As shown in FIG. 2 to FIG. 4, each cylindrical porous body 12 is provided with an annular pressurized air flow path 14 extending in the circumferential direction at the central position in the longitudinal direction of the inner peripheral surface.

一方、図２および図３に示されているように、筒状多孔質体１２の各加圧空気流路１４の径方向内方に位置する中空シャフト４の大径部６の部分には、大径部６の周壁を径方向に貫通する給気通路６ｂが形成されている。この結果、給気通路６ｂを介して、中空シャフト４の大径部６および小径部８、１０の内部空間と、筒状多孔質体１２の各加圧空気流路１４とが流体連通させられ、加圧空気流路に加圧エアを供給する径方向流路が形成されている。   On the other hand, as shown in FIG. 2 and FIG. 3, in the portion of the large diameter portion 6 of the hollow shaft 4 located radially inward of each pressurized air flow channel 14 of the cylindrical porous body 12, An air supply passage 6 b is formed which penetrates the peripheral wall of the large diameter portion 6 in the radial direction. As a result, the internal spaces of the large diameter portion 6 and the small diameter portions 8 and 10 of the hollow shaft 4 and the pressurized air flow passages 14 of the cylindrical porous body 12 are brought into fluid communication via the air supply passage 6b. A radial flow passage for supplying pressurized air to the pressurized air flow passage is formed.

また、各筒状多孔質体１２は、内周面の軸線方向両端部に、環状の切欠き部状の凹部１６を備えている。軸線方向に隣接する筒状多孔質体１２、１２同士が接合されているロール本体２では、隣接する筒状多孔質体１２、１２の対向する凹部１６、１６が連通し、ロール本体２の内周面に、接合部近傍に円周方向に延びる環状溝１７を形成している。   Each cylindrical porous body 12 is provided with an annular notch-shaped recess 16 at both axial ends of the inner circumferential surface. In the roll main body 2 in which the cylindrical porous bodies 12 and 12 adjacent to each other in the axial direction are joined, the facing concave portions 16 and 16 of the adjacent cylindrical porous bodies 12 and 12 communicate with each other. An annular groove 17 extending in the circumferential direction is formed in the vicinity of the joint on the circumferential surface.

そして、この環状溝１７には、隣接する筒状多孔質体１２、１２同士の接合部の端が位置している。この環状溝１７には、筒状多孔質体１２、１２同士を接合する接着剤の一部が、収容され、環状溝１７内の接着剤により、ロール本体２、詳細には各筒状多孔質体１２、１２、１２が、中空シャフト４に対してより強固に接合されている。   And in this annular groove 17, the end of the joined part of cylindrical porous bodies 12 and 12 comrades which adjoin is located. In the annular groove 17, a part of an adhesive for joining the cylindrical porous bodies 12, 12 is accommodated, and the adhesive in the annular groove 17 causes the roll main body 2, specifically, each cylindrical porous The bodies 12, 12, 12 are more firmly joined to the hollow shaft 4.

環状溝１７の深さ（径方向長さ）は、環状溝１７の長さ（軸線方向長さ）の１：６０（２％）乃至１：１３（８％）に設定されるのが好ましく、４％乃至５％に設定されるのが更に好ましい。   The depth (radial length) of the annular groove 17 is preferably set to 1:60 (2%) to 1:13 (8%) of the length (axial length) of the annular groove 17, More preferably, it is set to 4% to 5%.

本実施形態のターンバー１では、各筒状多孔質体１２の軸線方向一端面１８と他端面２０とが同様の相補的な形状を有している。具体的には、図４に示されているように、各筒状多孔質体１２は、軸線方向の一端面１８が、周方向内方側に軸線方向外方に階段状に突出した環状の凸状段部２２を有し、軸線方向の他端面２０が、周方向外方側に突出した環状の凸状段部２２と相補的に軸線方向内方に階段状に引っ込んだ環状の凹状段部２４を有している。   In the turn bar 1 of this embodiment, the axial direction one end surface 18 and the other end surface 20 of each cylindrical porous body 12 have the same complementary shape. Specifically, as shown in FIG. 4, each cylindrical porous body 12 has an annular shape in which one end face 18 in the axial direction protrudes stepwise outward in the axial direction inward in the circumferential direction. An annular concave step having a convex stepped portion 22 and the other end surface 20 in the axial direction being recessed stepwise inward in the axial direction complementarily to the annular convex stepped portion 22 protruding outward in the circumferential direction It has a part 24.

したがって、図３に示されているように、一の筒状多孔質体１２と他の筒状多孔質体１２とを、一の筒状多孔質体１２の一端面１８と他の筒状多孔質体１２の他端面２０とを接合した状態で連結すると、図２および図３に示されているように、一の筒状多孔質体１２の軸線方向一端面１８の環状の段部２２が、他の筒状多孔質体１２の軸線方向他端面２０の環状の段部２２に嵌合し、径方向の力に対して高い機械的強度が得られる。   Therefore, as shown in FIG. 3, one cylindrical porous body 12 and the other cylindrical porous body 12 are separated into one end face 18 of the one cylindrical porous body 12 and the other cylindrical porous body. When the other end surface 20 of the porous body 12 is joined in a joined state, as shown in FIG. 2 and FIG. 3, the annular stepped portion 22 of the axial direction one end face 18 of the cylindrical porous body 12 is one. The annular stepped portion 22 of the other axial end surface 20 of the other cylindrical porous body 12 is fitted, and high mechanical strength can be obtained against radial force.

さらに、本実施形態のターンバー１では、筒状多孔質体１２の軸線方向の他端面２０の径方向外方側位置に、環状のバッファ溝２６が形成されている。この環状のバッファ溝２６にも、筒状多孔質体１２、１２同士を接合する接着剤の余剰部分が、収容される。   Furthermore, in the turn bar 1 of the present embodiment, an annular buffer groove 26 is formed at the radially outer side position of the other end surface 20 in the axial direction of the cylindrical porous body 12. An excess portion of the adhesive for bonding the cylindrical porous bodies 12 is also accommodated in the annular buffer groove 26.

このように構成されたターンバー１では、図２に矢印A、Bで示すように、中空シャフト４の小径部８、１０を介して大径部４の内部空間に加圧空気を導入すると、この加圧空気が、図３に矢印Ｃで示すように、給気通路６を介して筒状多孔質体１２の各加圧空気流路１４に流入し、さらに、通気性を有する多孔質カーボンで形成された筒状多孔質体１２の内部を通過し、図３に矢印Ｄで示されるように、筒状多孔質体１２によって構成されたロール本体２の外表面全体から噴出することになる。
この結果、図５に示されるように、ロール本体２の外周面で、ウェブＷの非接触で支持し、搬送経路を反転させることができる。 In the turn bar 1 configured as described above, as shown by arrows A and B in FIG. 2, when pressurized air is introduced into the internal space of the large diameter portion 4 via the small diameter portions 8 and 10 of the hollow shaft 4, Pressurized air flows into each pressurized air flow path 14 of the cylindrical porous body 12 through the air supply passage 6 as shown by an arrow C in FIG. 3, and is further made of porous carbon having air permeability. It passes through the inside of the formed cylindrical porous body 12, and as shown by arrow D in FIG. 3, it jets out from the entire outer surface of the roll main body 2 constituted by the cylindrical porous body 12.
As a result, as shown in FIG. 5, the web W can be supported on the outer peripheral surface of the roll body 2 without contact, and the transport path can be reversed.

次に、本実施形態のターンバー１の製造方法について説明する。
図６乃至図８は、ターンバー１の製造において筒状多孔質体１２を中空シャフト４に取付る工程を模式的に示す図面である。 Next, a method of manufacturing the turn bar 1 of the present embodiment will be described.
6 to 8 are drawings schematically showing the process of attaching the cylindrical porous body 12 to the hollow shaft 4 in the manufacture of the turn bar 1.

まず、図６に示されているように、第１の筒状多孔質体１２を中空シャフト２の外周面の所定位置に取付け、第１の筒状多孔質体１２の軸線方向の一端面に、接着剤Ｓを配置する。次いで、図７に示されているように、中空シャフト２の外周面上で、第２の筒状多孔質体１２’を、接着剤Ｓを配置されている第１の筒状多孔質体１２の他端面に押圧しながら、中空シャフト２の外周面上の所定位置に配置する。   First, as shown in FIG. 6, the first cylindrical porous body 12 is attached to a predetermined position on the outer peripheral surface of the hollow shaft 2, and one end face of the first cylindrical porous body 12 in the axial direction , Place the adhesive S. Then, as shown in FIG. 7, on the outer peripheral surface of the hollow shaft 2, the second cylindrical porous body 12 ′ is separated from the first cylindrical porous body 12 in which the adhesive S is disposed. The other end surface of the hollow shaft 2 is disposed at a predetermined position on the outer peripheral surface of the hollow shaft 2 while being pressed to the other end surface.

次いで、図８に示されているように、第２の筒状多孔質体１２’の軸線方向の一端面に、接着剤Ｓを配置する。最後に、中空シャフト２の外周面上で、第３の筒状多孔質体を、接着剤Ｓを配置されている第２の筒状多孔質体１２’の他端面に押圧しながら、中空シャフト２の外周面上の所定位置に配置する。尚、筒状多孔質体同士を接合する接着剤は、筒状多孔質体を中空シャフトにも接合することになる。   Next, as shown in FIG. 8, the adhesive S is disposed on one axial end face of the second cylindrical porous body 12 ′. Finally, on the outer peripheral surface of the hollow shaft 2, the third cylindrical porous body is pressed against the other end surface of the second cylindrical porous body 12 'in which the adhesive S is disposed, It arranges in the predetermined position on the perimeter face of 2. In addition, the adhesive which joins cylindrical porous bodies will also join a cylindrical porous body also to a hollow shaft.

中空シャフト２の外周面上で、第２または第３の筒状多孔質体を、接着剤Ｓを配置されている第１または第２の筒状多孔質体の他端面に押圧すると、接着剤Ｓが押し拡げられる。この際、余剰の接着剤Ｓは、隣接する筒状多孔質体の接合部近傍に形成されている環状の凹部１８、および筒状多孔質体１２の他端面２０のバッファ溝２６に収容され、ロール本体２の外周面側にあふれ出ることが抑制される。   When the second or third cylindrical porous body is pressed against the other end surface of the first or second cylindrical porous body on which the adhesive S is disposed on the outer peripheral surface of the hollow shaft 2, the adhesive S is pushed and spread. At this time, the excess adhesive S is accommodated in the annular recess 18 formed in the vicinity of the joint of the adjacent cylindrical porous bodies and the buffer groove 26 of the other end face 20 of the cylindrical porous body 12, Overflowing to the outer peripheral surface side of the roll body 2 is suppressed.

この際、接着剤Ｓの一部が、隣接する筒状多孔質体の接合部近傍に形成されている環状の凹部１６に収容され、多孔質体１２と中空シャフト４を接合する。また、余剰の接着剤Ｓは、筒状多孔質体１２の他端面２０のバッファ溝２６に収容され、ロール本体２の外周面側にあふれ出ることが抑制される。   Under the present circumstances, a part of adhesive agent S is accommodated in the cyclic | annular recessed part 16 currently formed in the joint part of the adjacent cylindrical porous body, and it joins the porous body 12 and the hollow shaft 4. FIG. Further, the excess adhesive S is accommodated in the buffer groove 26 of the other end surface 20 of the cylindrical porous body 12, and overflowing to the outer peripheral surface side of the roll main body 2 is suppressed.

本発明は、上記実施形態に限定されることなく、特許請求の範囲に記載された技術的思想の範囲内で種々の変更、変形が可能である。   The present invention is not limited to the above embodiment, and various changes and modifications can be made within the scope of the technical idea described in the claims.

上記実施形態のターンバー１では、筒状多孔質体は、多孔質カーボンで形成されていたが、多孔質セラミックス、多孔質メタル等の他の多孔質材料で形成してもよい。   In the turn bar 1 of the above embodiment, the cylindrical porous body is formed of porous carbon, but may be formed of other porous materials such as porous ceramics and porous metals.

また、上記実施形態のターンバー１は、筒状多孔質体の軸線方向の他端面の径方向外方側位置に、環状のバッファ溝が形成されている構成であったが、バッファ溝を設けない構成、あるいは他の態様（配置、数）のバッファ溝を設けた構成でもよい。   Moreover, although the turn bar 1 of the said embodiment was the structure by which the cyclic | annular buffer groove was formed in the radial direction outward side position of the other end surface of the axial direction of a cylindrical porous body, a buffer groove is not provided. A configuration or a configuration in which buffer grooves of another aspect (arrangement, number) may be provided.

さらに、上記実施形態では、各筒状多孔質体１２の軸線方向一端面１８が、周方向内方側に軸線方向外方に階段状に突出した環状の凸状段部２２を有し、軸線方向他端面２０が、周方向外方側に突出した環状の凸状段部２２と相補的に軸線方向内方に階段状に引っ込んだ環状の凹状段部２４を突出した段部を有している構成であるが、筒状多孔質体同士の接合部となる端面だけ相補的な形状を有する構成でもよい。   Furthermore, in the above embodiment, the axial direction one end surface 18 of each cylindrical porous body 12 has the annular convex stepped portion 22 protruding in the axial direction outward in the circumferential direction at the inner side in the axial direction. The other end surface 20 of the direction has a stepped portion projecting an annular recessed step portion 24 which is recessed stepwise inward in the axial direction complementarily to the annular convex step portion 22 projecting outward in the circumferential direction The configuration may be such that only the end face that is the joint between the cylindrical porous bodies has a complementary shape.

さらに、段部の形状および位置も、他の形状であってもよい。例えば、図９に示されているように、傾斜面によって構成された凸状の段部２２０と、凸状の段部２２０と相補的な凹状と段部２４０とによって、相補的な形状が達成されている構成でもよい。さらに、図１０に示されているように、径方向中央位置に設けられた凸部３２０と相補的な凹部３４０とによって、相補的な形状が達成されている構成でもよい。   Furthermore, the shape and position of the step may also be other shapes. For example, as shown in FIG. 9, a complementary shape is achieved by a convex step 220 formed by an inclined surface and a concave and a step 240 complementary to the convex step 220. It may be configured as described above. Furthermore, as shown in FIG. 10, a complementary shape may be achieved by the convex portion 320 provided at the radial center position and the complementary concave portion 340.

１：ターンバー
２：ロール本体
４：中空シャフト
６：大径部
６ｂ：給気通路
８、１０：小径部
１２：筒状多孔質体
１４：加圧空気流路
１６：凹部
１７：環状溝
１８：筒状多孔質体の軸線方向一端面
２０：筒状多孔質体の軸線方向他端面
２２：凸状段部
２４：凹状段部 1: Turn bar 2: Roll body 4: Hollow shaft 6: Large diameter portion 6b: Air supply passage 8, 10: Small diameter portion 12: Cylindrical porous body 14: Pressurized air flow path 16: Recess 17: Annular groove 18: Axial direction one end surface 20 of cylindrical porous body: Axial direction other end surface 22 of cylindrical porous body: convex step 24: concave step

Claims (7)

ウェブ状のワークを非接触でガイドするターンバーであって、
多孔質体で構成された円筒状のロール本体と、
前記ロール本体の外表面からエアを吐出させるエア吐出機構と、を備え、
前記ロール本体が、軸線方向端面同士が連結された複数の筒状多孔質体によって構成され、
前記エア吐出機構が、外周面に前記円筒状のロール本体が取付けられている中空シャフトを備え、
前記筒状多孔質体が、隣接する筒状多孔質体と接着により接合され、隣接する前記筒状多孔質体との接合部近傍の内周面に設けられた凹部であって、前記筒状多孔質体の径方向内方および軸線方向外方に向かって開放し、隣接する筒状多孔質体との接合時に、隣接する筒状多孔質体の凹部と径方向内方に開放した状態で連通する凹部を有している、
ことを特徴とするターンバー。 It is a turn bar that guides web-like work without contact.
A cylindrical roll body composed of a porous body,
And an air discharge mechanism for discharging air from the outer surface of the roll body,
The roll body is constituted of a plurality of cylindrical porous bodies in which axial end faces are connected to each other,
The air discharge mechanism includes a hollow shaft having the cylindrical roll body attached to an outer peripheral surface thereof,
The tubular porous body is a concave portion which is bonded to an adjacent tubular porous body by adhesion, and is provided on an inner circumferential surface near a junction with the adjacent cylindrical porous body, the tubular Open in the radially inward and axially outward directions of the porous body, and in the state of being opened radially inward with the concave portion of the adjacent cylindrical porous body at the time of bonding with the adjacent cylindrical porous body It has a recess which communicates,
Turn bar characterized by. 前記凹部が、前記筒状多孔質体の内周面で円周方向に延びる環状溝を構成している、
請求項１に記載のターンバー。 The concave portion constitutes an annular groove extending in a circumferential direction on an inner circumferential surface of the cylindrical porous body.
The turn bar according to claim 1. 一の筒状多孔質体の他の筒状多孔質体と接合されている軸線方向端面と、前記他の筒状多孔質体の前記一の筒状多孔質体と接合されている端面とが、相補的な凹凸形状を備えている、
請求項１または２に記載のターンバー。 An axial end face joined to another cylindrical porous body of one cylindrical porous body, and an end face joined to the one cylindrical porous body of the other cylindrical porous body , Complementary asperity shape,
The turn bar according to claim 1 or 2. 一の筒状多孔質体の他の筒状多孔質体と接合されている軸線方向端面に少なくとも１つの環状凸部が形成され、
前記他の筒状多孔質体の前記一の筒状多孔質体と接合されている端面に前記環状凸部と相補的な環状凹部が形成されている、
請求項１または２に記載のターンバー。 At least one annular convex portion is formed on an axial end face joined to another cylindrical porous body of one cylindrical porous body,
An annular concave portion complementary to the annular convex portion is formed on an end face of the other cylindrical porous body joined to the one cylindrical porous body.
The turn bar according to claim 1 or 2. 一の筒状多孔質体が他の筒状多孔質体と接合されている軸線方向端面に少なくとも１つの環状のバッファ溝が形成されている、
請求項１ないし４のいずれか１項に記載のターンバー。 At least one annular buffer groove is formed on an axial end face where one tubular porous body is joined to another tubular porous body;
The turn bar according to any one of claims 1 to 4. 前記筒状多孔質体が、多孔質カーボンで構成されている、
請求項１ないし５のいずれか１項に記載のターンバー。 The cylindrical porous body is made of porous carbon,
The turn bar according to any one of claims 1 to 5. 前記筒状多孔質体の各々が長手方向中央位置で円周方向に延びる加圧空気流路を備え、
前記中空シャフトが、径方向に延びて前記加圧空気流路に接続され、前記加圧空気流路に加圧エアを供給する径方向流路を有している、
請求項１ないし６のいずれか１項に記載のターンバー。 Each of the cylindrical porous bodies comprises a pressurized air flow passage extending circumferentially at a central longitudinal position,
The hollow shaft has a radial flow passage extending radially to be connected to the pressurized air flow passage and supplying pressurized air to the pressurized air flow passage.
The turn bar according to any one of claims 1 to 6.
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