[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

EP0922692A1 - Vorrichtung zum Fördern bahnförmigen Materials unter kontinuierlicher Zugspannung - Google Patents

Vorrichtung zum Fördern bahnförmigen Materials unter kontinuierlicher Zugspannung Download PDF

Info

Publication number
EP0922692A1
EP0922692A1 EP97830660A EP97830660A EP0922692A1 EP 0922692 A1 EP0922692 A1 EP 0922692A1 EP 97830660 A EP97830660 A EP 97830660A EP 97830660 A EP97830660 A EP 97830660A EP 0922692 A1 EP0922692 A1 EP 0922692A1
Authority
EP
European Patent Office
Prior art keywords
traction
sheet
rollers
subjected
roller
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Withdrawn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
EP97830660A
Other languages
English (en)
French (fr)
Inventor
Mario Beretta
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.)
Tenax SpA
Original Assignee
Tenax SpA
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 Tenax SpA filed Critical Tenax SpA
Priority to EP97830660A priority Critical patent/EP0922692A1/de
Publication of EP0922692A1 publication Critical patent/EP0922692A1/de
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • 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
    • B65H20/00—Advancing webs
    • B65H20/24—Advancing webs by looping or like devices
    • 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
    • B65H23/18—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web
    • B65H23/188—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in connection with running-web
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/30—Orientation, displacement, position of the handled material
    • B65H2301/34—Modifying, selecting, changing direction of displacement
    • B65H2301/342—Modifying, selecting, changing direction of displacement with change of plane of displacement
    • B65H2301/3423—Modifying, selecting, changing direction of displacement with change of plane of displacement by travelling an angled curved path section for overturning and changing feeding direction

Definitions

  • the present invention relates to an apparatus for subjecting materials in sheet form to continuous traction.
  • This system entails the severe drawback that contact pressure is applied over a very small surface, so that it is necessary to apply an intense pressure in order to make the product advance and avoid slippage.
  • Concentration of all the pressure applied by the rollers in a single point can crush or in any case damage the sheet-like element subjected to traction.
  • devices which have a plurality of rollers staggered with respect to the traction direction, so that it is possible to achieve a higher traction force since the surface of contact between each individual roller and the sheet-like element being subjected to traction is increased.
  • the aim of the present invention is to eliminate the above drawbacks, by achieving a traction force which is significantly higher than obtainable with conventional systems and can thus be easily used with materials in sheet form produced continuously, without having to resort to large and expensive devices.
  • a particular object of the present invention is to provide an apparatus which allows to continuously subject materials in sheet form to traction even if they are significantly large in terms of thickness and transverse width.
  • Another object of the present invention is to provide an apparatus which does not damage in any way the elements being subjected to traction, since it does not use mutually opposite rollers acting by pressing.
  • Another object of the present invention is to provide an apparatus which allows to subject to uniform and constant traction also products having considerable thickness variations or an irregular configuration, without thereby flattening the products or damaging them in any way.
  • Another object of the present invention is to provide an apparatus for subjecting materials in sheet form to continuous traction which, by means of its particular constructive characteristics, is capable of giving the greatest assurances of reliability and safety in use and is also inexpensive since the components are reduced significantly.
  • an apparatus for subjecting materials in sheet form to continuous traction characterized in that it comprises, on a supporting frame, a first roller and a second roller which are spaced from each other and have substantially parallel axes, at least one sheet-like element to be subjected to traction winding around said rollers, at least one redirection element being provided between said rollers for the exit of the sheet-like element subjected to traction from said traction apparatus.
  • the apparatus for subjecting materials in sheet form to continuous traction comprises a supporting frame 2 which supports, by means of lugs 3 or other similar elements, a first roller 4 and a second roller 5 which are mutually spaced and have substantially parallel axes.
  • rollers 4 and 5 have specific driving means, such as motor means and the like, and rotate in the same direction.
  • the rollers 4 and 5 may optionally have, on their surface, a certain roughness so as to enhance the friction effect, as described in detail hereinafter.
  • a redirection element is arranged between the rollers 4 and 5 and is constituted by a transverse bar 10, preferably made of a metallic material and arranged at an angle with respect to the winding direction of the sheet-like element which winds around the rollers 4 and 5, the bar being preferably inclined at 45° with respect to the rollers.
  • the sheet-like element designated by the reference numeral 20
  • winds around the first roller forming an upper portion, up to the second roller, around which it winds so as to form a lower portion which in turn reaches the roller 4 again.
  • a plurality of turns can be formed, thus increasing friction.
  • the sheet-like element Once the sheet-like element has performed the number of turns or passes around the rollers 4 and 5 that correspond to the intended traction, it is guided towards the transverse bar 10, which is arranged between the rollers 4 and 5, and is made to exit towards subsequent processing steps.
  • the sheet-like element can be made to exit in one direction or the other, depending on the roller on which the last pass was performed.
  • the continuous passage of the material around the rollers 4 or 5, with the superimposition of a plurality of layers, generates a pressure which is transmitted from one layer to the underlying one and which ultimately compresses the inner layers of the sheet-like material against the surface of the rollers.
  • the resulting total pressure generates a traction force which entrains even very thick and wide materials.
  • the exit of the material by passing around the transverse bar 10 allows to extract the material usefully and without having to stop the production cycle.
  • Figure 5 illustrates another embodiment, in which there is provided a second transverse bar, designated by the reference numeral 11, which allows to simultaneously subject to traction two sheet-like elements 20 and 21, which are made to exit from the traction apparatus in directions and with orientations which can be optionally different from each other.
  • the pressure forces generated between the various layers of product during their superimposition on the rotating rollers are such that they equal or exceed those of systems in which rollers with very large diameters are installed.
  • the traction force can be raised to the tearing point of the product that passes through, simply by increasing the number of turns of said product around the rollers, without having to apply further modifications to the apparatus.
  • the product that can be subjected to traction can also be constituted by elements having substantial thickness variations without causing damage or flattening during traction.
  • the apparatus also allows to easily extract the product being subjected to traction from the apparatus itself, in order to perform subsequent processes, even if the product is superimposed inside the apparatus.
  • the materials employed, as well as the contingent shapes and dimensions may be any according to requirements.

Landscapes

  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
EP97830660A 1997-12-12 1997-12-12 Vorrichtung zum Fördern bahnförmigen Materials unter kontinuierlicher Zugspannung Withdrawn EP0922692A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP97830660A EP0922692A1 (de) 1997-12-12 1997-12-12 Vorrichtung zum Fördern bahnförmigen Materials unter kontinuierlicher Zugspannung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP97830660A EP0922692A1 (de) 1997-12-12 1997-12-12 Vorrichtung zum Fördern bahnförmigen Materials unter kontinuierlicher Zugspannung

Publications (1)

Publication Number Publication Date
EP0922692A1 true EP0922692A1 (de) 1999-06-16

Family

ID=8230888

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97830660A Withdrawn EP0922692A1 (de) 1997-12-12 1997-12-12 Vorrichtung zum Fördern bahnförmigen Materials unter kontinuierlicher Zugspannung

Country Status (1)

Country Link
EP (1) EP0922692A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3401255A1 (de) * 2013-01-14 2018-11-14 Dart Container Corporation Systeme zum abwickeln einer rolle aus einem mit einem porösen material vernetzten material und entsprechende verfahren

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1481205A (fr) * 1966-04-06 1967-05-19 Tecosa Magasin pour produit en bande
DE2256882A1 (de) * 1972-11-20 1973-12-13 Frankenthal Ag Albert Papierbahndehnungsregelung und vorrichtung zur durchfuehrung derselben
DE2637304A1 (de) * 1976-08-19 1978-02-23 Hoechst Ag Vorrichtungen fuer kontinuierliche verweilprozesse in der textilausruestung
JPS6082558A (ja) * 1983-10-12 1985-05-10 Ckd Corp フイルムの引延し装置
DE4003659A1 (de) * 1990-02-07 1991-08-08 Kokes Michael Dipl Ing Fh Vorrichtung und verfahren zur konstanten dehnungsregelung fuer durchlaufende bahnen
JPH09175703A (ja) * 1995-12-25 1997-07-08 Yoshikawa Kogyo Co Ltd 被印刷体圧着・移送用ローラ

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1481205A (fr) * 1966-04-06 1967-05-19 Tecosa Magasin pour produit en bande
DE2256882A1 (de) * 1972-11-20 1973-12-13 Frankenthal Ag Albert Papierbahndehnungsregelung und vorrichtung zur durchfuehrung derselben
DE2637304A1 (de) * 1976-08-19 1978-02-23 Hoechst Ag Vorrichtungen fuer kontinuierliche verweilprozesse in der textilausruestung
JPS6082558A (ja) * 1983-10-12 1985-05-10 Ckd Corp フイルムの引延し装置
DE4003659A1 (de) * 1990-02-07 1991-08-08 Kokes Michael Dipl Ing Fh Vorrichtung und verfahren zur konstanten dehnungsregelung fuer durchlaufende bahnen
JPH09175703A (ja) * 1995-12-25 1997-07-08 Yoshikawa Kogyo Co Ltd 被印刷体圧着・移送用ローラ

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 009, no. 226 (M - 412) 12 September 1985 (1985-09-12) *
PATENT ABSTRACTS OF JAPAN vol. 097, no. 011 28 November 1997 (1997-11-28) *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3401255A1 (de) * 2013-01-14 2018-11-14 Dart Container Corporation Systeme zum abwickeln einer rolle aus einem mit einem porösen material vernetzten material und entsprechende verfahren
US10544001B2 (en) 2013-01-14 2020-01-28 Dart Container Corporation Systems for unwinding a roll of thermoplastic material interleaved with a porous material, and related methods

Similar Documents

Publication Publication Date Title
CA1330520C (en) Method and apparatus for compressing a self-supported web
FI59356C (fi) Anordning foer kontinuerlig tryckbehandling av banor
FI58451B (fi) Anordning foer kontinuerlig tryckbehandling av banor
CA1259027A (en) Web perforating utilizing a single perf cylinder and dual anvils
JPH0830301B2 (ja) 拡幅装置
RU2257971C2 (ru) Горячая прокатка тонкой полосы
GB1396811A (en) Method of shrinking fabric or paper
JPH0523891A (ja) 連続作動材料プレス
US4096801A (en) Register control method and apparatus
EP0922692A1 (de) Vorrichtung zum Fördern bahnförmigen Materials unter kontinuierlicher Zugspannung
DE4230243C1 (de) Rollensatz für die S-förmige Umlenkung zu planierender dünner Metallbänder
US5463946A (en) Continuously operating material press with lubricating film for reducing friction
DE202011108695U1 (de) Vorrichtung zum Schälen von mandelartigen Früchten
DE2218074C3 (de) Einrichtung zur kontinuierlichen Herstellung von kaschierten Spanholzbahnen
DE2329600C3 (de) Einrichtung zur kontinuierlichen Herstellung von dünnen endlosen Spanplattenbahnen
DE2215310A1 (de) Endloses elastisches druckband zum kaschieren von spanplatten
JPH0722984B2 (ja) オーバレイボードの連続製造装置および製造方法
RU2344894C2 (ru) Устройство для непрерывного вытягивания растяжением металлической ленты и способ непрерывного вытягивания растяжением металлической ленты в таком устройстве
KR100352616B1 (ko) 철판의 절단면 가공장치
US20030205605A1 (en) Belt feed apparatus for continuous expanded graphite web
DE19942851C2 (de) Doppelbandpresse
JPS6224804A (ja) 圧延機
DE8814852U1 (de) Einrichtung zum kontinuierlichen Strukturieren und Prägen von Endloslaminatoberflächen in Doppelbandpressen
DE4103343A1 (de) Vorrichtung zum kontinuierlichen pressen eines endlosen materialbandes
CA2679486A1 (en) Method and apparatus for incrementally stretching a web

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE ES FR GB IT

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 19991124

AKX Designation fees paid

Free format text: DE ES FR GB IT

17Q First examination report despatched

Effective date: 20001129

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Withdrawal date: 20010502