EP0333675A2 - Cylindre de transport et de pliage utilisable dans l'industrie du papier et du carton - Google Patents

Cylindre de transport et de pliage utilisable dans l'industrie du papier et du carton Download PDF

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Publication number
EP0333675A2
EP0333675A2 EP89830119A EP89830119A EP0333675A2 EP 0333675 A2 EP0333675 A2 EP 0333675A2 EP 89830119 A EP89830119 A EP 89830119A EP 89830119 A EP89830119 A EP 89830119A EP 0333675 A2 EP0333675 A2 EP 0333675A2
Authority
EP
European Patent Office
Prior art keywords
cylinder
folding
conveying
paper
friction
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Withdrawn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
EP89830119A
Other languages
German (de)
English (en)
Other versions
EP0333675A3 (fr
Inventor
Romano Conti
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0333675A2 publication Critical patent/EP0333675A2/fr
Publication of EP0333675A3 publication Critical patent/EP0333675A3/fr
Withdrawn legal-status Critical Current

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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
    • B65H23/02—Registering, tensioning, smoothing or guiding webs transversely
    • B65H23/022—Registering, tensioning, smoothing or guiding webs transversely by tentering devices
    • B65H23/025—Registering, tensioning, smoothing or guiding webs transversely by tentering devices by rollers
    • B65H23/0251—Registering, tensioning, smoothing or guiding webs transversely by tentering devices by rollers with a straight axis
    • B65H23/0256—Registering, tensioning, smoothing or guiding webs transversely by tentering devices by rollers with a straight axis with opposed helicoidal windings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H45/00—Folding thin material
    • B65H45/12—Folding articles or webs with application of pressure to define or form crease lines

Definitions

  • the present invention relates to a conveying and folding cylinder for use in the paper and cardboard industry, suitable in particular for mounting on folding machines of the type commonly used in the graphic arts for folding printed sheets, or in office automation, of the type integrated in a line of equipment which is used for printing and folding, continuously and at a high speed, forms and documents so as to make them suitable, for example, for insertion into envelopes.
  • the cylinders for paper-sheet folding machines currently in use have a surface consisting of a metal part and of a part made of material with a high coeffi­cient of friction consisting generally of rubber or elastomer. While the rubber part ensures conveying of the sheet passing between a pair of cylinders, the metal part enables clear and precise folding of the sheet to be obtained.
  • various arrangements of the metal part and the rubber part of the surface of the roller have been proposed: alternating circumferential strips, alternating helical strips, knurling, portions with a metal surface sur­rounded by a rubber surface and so on.
  • the object of the present invention is to provide a cylinder for conveying and folding paper material, suitable for installation in folding machines and de­signed to exert a pulling force on the passing sheet both in the direction of forward movement and in the two opposite directions parallel to the axis of the cylinder.
  • the cylinder according to the invention is of the type in which its surface consists of a metal part and of a part with a high coefficient of friction, arranged alternately, and its innovative feature consists in the fact that the metal part and the part with a high coef­ficient of friction form on the surface of the cylinder two pairs of opposing helices each extending from the middle of said cylinder toward one of the ends.
  • FIG. 1 shows a longitudinal and partially sectioned view of a folding cylinder according to the invention
  • - Figure 2 shows a longitudinal view of a pair of cylinders according to the invention during operation
  • - Figure 3 shows an end view of the cylinders shown in Figure 2.
  • 1 denotes a metal cylindrical body, on the side surface of which are formed two continuous grooves 2 and 3 extending helically and running in opposite directions, each covering one half of the side surface of the cylinder 1 between the middle 4 of the same cylinder and the two ends.
  • the grooves 2 and 3 are formed by means of mechanical machining from a single piece, for example by means of turning.
  • the grooves 2 and 3 are filled with material with a high coefficient of friction, such as rubber, up to the level of the cylinder surface so that it is perfectly smooth, in this way, the cylindrical surface is formed by continuous helical metal and elastomeric strips, indi­cated by 5 and by 6, extending rom one of its ends toward the middle 4 and of corresponding continuous helical metal and elastomeric strips, indicated by 7 and by 8, extending from its other end of the middle 4, but in the opposite direction.
  • material with a high coefficient of friction such as rubber
  • FIGs 2 and 3 illustrate how a pair of cylin­ders according to the invention operates.
  • the two cylinders are shown while a sheet of paper material 9 to be folded is passing between them. Coupling of the cylinders is performed so that during their rotation, in a clockwise and anticlockwise direc­tion, respectively, the metal helical strips of one cylinder constantly correspond with the metal helical strips of the other cylinder, along the generatrix of contact of the cylinders.
  • the sheet 9 passing between the two cylinders 1 perform­ing a simultaneous rotating movement is stressed as indicated by the arrows, i.e.
  • the cylinder itself may be constructed as a single metal piece. This is advantageous in that operation at high speeds is possible without overheating of the rollers and the consequent consequent tensions which occur between metal and rubber adversely affecting functioning of the same rollers and their actual structure.
  • the invention is not limited to the embodiment described and illustrated above, but includes any varia­tion of embodiment thereof.

Landscapes

  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
EP89830119A 1988-03-18 1989-03-16 Cylindre de transport et de pliage utilisable dans l'industrie du papier et du carton Withdrawn EP0333675A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT8811577U IT214365Z2 (it) 1988-03-18 1988-03-18 Cilindro di trascinamento e piegatura per uso cartotecnico
IT1157788U 1988-03-18

Publications (2)

Publication Number Publication Date
EP0333675A2 true EP0333675A2 (fr) 1989-09-20
EP0333675A3 EP0333675A3 (fr) 1990-03-28

Family

ID=11135896

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89830119A Withdrawn EP0333675A3 (fr) 1988-03-18 1989-03-16 Cylindre de transport et de pliage utilisable dans l'industrie du papier et du carton

Country Status (2)

Country Link
EP (1) EP0333675A3 (fr)
IT (1) IT214365Z2 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0852279A3 (fr) * 1997-01-04 1998-09-30 Bavak Beveiligingsgroep B.V. Assemblage pour le stockage de papier monnaie dans un récipient, ainsi que récipient et boítier pour un tel récipient
FR2850644A1 (fr) * 2003-02-04 2004-08-06 Roland Man Druckmasch Cylindre plieur pour un dispositif de pliage et procede de fabrication d'un tel cylindre
WO2016065924A1 (fr) * 2014-10-29 2016-05-06 广州广电运通金融电子股份有限公司 Dispositif d'aplatissement de matériau en feuille
CN106516832A (zh) * 2015-09-10 2017-03-22 天津宝盈电脑机械有限公司 一种展布装置
IT201600094253A1 (it) * 2016-09-20 2018-03-20 Ravizza Packaging S R L Macchina per il confezionamento di articoli entro involucri di materiale flessibile
CN112140633A (zh) * 2020-09-21 2020-12-29 昆山市天丰印刷包装有限公司 全自动水性印刷开槽模切机
CN115367533A (zh) * 2022-09-06 2022-11-22 苏州柔羽智能科技有限公司 一种布匹打卷装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1036031B (de) * 1954-03-27 1958-08-07 Heinrich Th Mayer Umlaufende Breitstreckvorrichtung fuer Bahnen aus duennem Papier und anderen hochempfindlichen Werkstoffen
DE1761741B1 (de) * 1968-07-02 1971-02-25 Stahl & Co Ohg Falzwalze
DE2302356C3 (de) * 1973-01-18 1987-12-03 Maschinenbau Oppenweiler Gmbh, 7155 Oppenweiler Falzwalze
JPS60112563A (ja) * 1983-11-24 1985-06-19 Canon Inc 紙送りロ−ラ

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0852279A3 (fr) * 1997-01-04 1998-09-30 Bavak Beveiligingsgroep B.V. Assemblage pour le stockage de papier monnaie dans un récipient, ainsi que récipient et boítier pour un tel récipient
FR2850644A1 (fr) * 2003-02-04 2004-08-06 Roland Man Druckmasch Cylindre plieur pour un dispositif de pliage et procede de fabrication d'un tel cylindre
WO2016065924A1 (fr) * 2014-10-29 2016-05-06 广州广电运通金融电子股份有限公司 Dispositif d'aplatissement de matériau en feuille
CN106516832A (zh) * 2015-09-10 2017-03-22 天津宝盈电脑机械有限公司 一种展布装置
IT201600094253A1 (it) * 2016-09-20 2018-03-20 Ravizza Packaging S R L Macchina per il confezionamento di articoli entro involucri di materiale flessibile
CN112140633A (zh) * 2020-09-21 2020-12-29 昆山市天丰印刷包装有限公司 全自动水性印刷开槽模切机
CN115367533A (zh) * 2022-09-06 2022-11-22 苏州柔羽智能科技有限公司 一种布匹打卷装置
CN115367533B (zh) * 2022-09-06 2023-08-25 苏州柔羽智能科技有限公司 一种布匹打卷装置

Also Published As

Publication number Publication date
IT8811577V0 (it) 1988-03-18
IT214365Z2 (it) 1990-05-03
EP0333675A3 (fr) 1990-03-28

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