EP2363366A1 - Dispositif de pliage de feuilles - Google Patents

Dispositif de pliage de feuilles Download PDF

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Publication number
EP2363366A1
EP2363366A1 EP11156349A EP11156349A EP2363366A1 EP 2363366 A1 EP2363366 A1 EP 2363366A1 EP 11156349 A EP11156349 A EP 11156349A EP 11156349 A EP11156349 A EP 11156349A EP 2363366 A1 EP2363366 A1 EP 2363366A1
Authority
EP
European Patent Office
Prior art keywords
rollers
pair
reciprocating motion
sheet
contact surface
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Withdrawn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
EP11156349A
Other languages
German (de)
English (en)
Inventor
Andrea Carletti
Alessandro Chessa
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.)
Scm Srl
A2 SRL
Original Assignee
Scm Srl
A2 SRL
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 Scm Srl, A2 SRL filed Critical Scm Srl
Publication of EP2363366A1 publication Critical patent/EP2363366A1/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Withdrawn legal-status Critical Current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
    • B65H45/00—Folding thin material
    • B65H45/02—Folding limp material without application of pressure to define or form crease lines
    • B65H45/06—Folding webs
    • B65H45/10—Folding webs transversely
    • B65H45/101—Folding webs transversely in combination with laying, i.e. forming a zig-zag pile
    • 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
    • B65H45/20—Zig-zag folders

Definitions

  • This invention relates to a machine and a method for folding sheets.
  • this invention relates to a machine for folding information sheets intended for insertion in packets of medicines and the like.
  • a web of paper is passed between two rollers which are shaped to match each other in such a way as to impart to the web lines for folding in alternating directions.
  • the prior art folding system just described has many disadvantages, one of which is the fact that it is impossible to vary the size of the layer, since it is uniquely linked to the diameter of the rollers and the distance between the teeth/grooves made in them.
  • the aim of this invention is to overcome these disadvantages by providing a device for folding sheets in superposed layers which is at the same time simple and economical to make and practical and effective to use.
  • the numeral 1 denotes in its entirety a device for folding sheets in superposed layers made in accordance with this invention.
  • the device 1 comprises a supporting frame 2 which, by way of example, comprises a base 3 and two lateral walls 4a, 4b extending vertically from the base 3.
  • the device 1 comprises a pair of first rollers for feeding a sheet 7, advantageously of paper, which is visible in Figures 2 to 8 .
  • the pair of first rollers hereinafter also referred to without distinction as the first pair, comprises, as indicated, the two rollers 5, 6 one of which, labelled 5 in the drawings, is motor-driven, and the other of which, labelled 6, is idle.
  • the two rollers 5, 6 are parallel with each other and are rotatably mounted on the vertical walls 4a, 4b of the frame 2 by means of rolling bearings of the known type and not illustrated.
  • the device 1 comprises a pair of second, folding rollers 8, 9, also referred to as the second pair, which is located below the first pair.
  • the second pair comprises two rollers 8, 9 which are parallel with each other and spaced with a predetermined centre-to-centre distance.
  • the first rollers 5, 6 and the second rollers 8, 9 have respective axes of rotation X which are all parallel with each other.
  • the two second rollers 8, 9 are free-rotatably mounted, by means of rolling bearings of the known type and not illustrated, on two sliders 10, only one of which is visible in Figure 1 , which are located at respective opposite longitudinal ends of the second rollers 8, 9 themselves.
  • the device 1 comprises a contact surface 11 elastically mounted on the frame 2 by means of a plurality of elastic elements 12 of the known type, for varying its distance from the above-mentioned pair of second rollers 8, 9.
  • each slider 10 slidably engages on two respective cylindrical tracks 12 which extend longitudinally in directions transversal to those identified by the axes of the rollers 5, 6, 8, 9.
  • the cylindrical tracks 12 are mounted at the respective longitudinal ends on vertical members 13 which are rigidly connected to the frame 2 and, in particular, are against the vertical walls 4a, 4b.
  • the sliders 10 are slidably movable relative to the frame 2, to produce a straight line reciprocating motion of the pair of second rollers 8, 9 along a direction T which is substantially perpendicular to the axes of rotation X of the rollers 5, 6, 8, 9.
  • the device 1 comprises actuating means 14 designed both to make the first roller 5 rotate, thus producing a sheet 7 feeding motion, and to move the pair of second rollers 8, 9 with reciprocating motion.
  • the actuating means 14 comprise a single electric motor 15 and means 16 for transmitting the motion both to the first roller 5 and to the sliders 10.
  • the motion transmission means 16 comprise at least one gear wheel 17 keyed to a driving shaft 18 connected to the motor 15.
  • the gear wheel 17 engages with a toothed belt 19 which transmits the rotary motion to a pulley 20 keyed to a shaft 21 integral with the first roller 5.
  • the belt 19 also engages with a plurality of return rollers 22.
  • the motion transmission means 16 also comprise a crank and link mechanism in turn comprising a crank 23 keyed to the driving shaft 18 and a link 24 connected to an arm 25 fixed cantilever-style to one of the sliders 10.
  • the actuating means 14 have two separate motors for respectively moving the first roller 5 and the crank 23.
  • the first rollers 5, 6 rotate in opposite directions, since the rotation of the first roller 5 is driven by the actuating means 14, through the belt 19 and the related pulley 20, while the roller 6 is idle, that is to say, it rotates freely.
  • FIG. 3 shows, when the sliders 10 invert their motion, according to the direction of the arrow D, when the crank and link mechanism reaches a dead centre, the second roller 9 makes a fold in the sheet 7, with the simultaneous formation of a second layer intended to be superposed on a first layer in contact with the contact surface 11.
  • Figures 4 to 6 show successive moments of the creation of the second layer of the sheet 7, corresponding to respective successive positions of the sliders 10 as they advance along the direction indicated by the arrow D.
  • Figures 3 to 6 show, in successive moments, the movement of the second rollers 8, 9 and the action of the second roller 9 on the sheet 7.
  • they show how the second roller 9 lays out the sheet 7 so that it is lying on the layer below, until a superposing layer is created.
  • the superposing layer is formed, in its entirety, at the moment when the pair of second rollers 8, 9 and the related sliders 10 invert their motion, as illustrated substantially in Figure 7 .
  • Said figure shows the formation of a further fold in the sheet 7, said fold confirming the start of the formation of a further layer superposed on the previous layers.
  • Figure 8 shows the device 1 at a moment after the configuration of Figure 7 , a moment when the sheet 7 fed by the first rollers 5, 6 and pushed by the second roller 8 on the right, rests on the second roller 9 on the left.
  • the device 1 comprises an oscillating element 27 for guiding the sheet to be folded, the guide element 27 being interposed between the second rollers 8, 9.
  • the presence of the oscillating element 27 advantageously allows more rapid feeding of the sheet to be folded, preventing the "natural" formation of loops in the sheet from resulting in any hindrance between the second rollers 8, 9.
  • the oscillating element 27 advantageously comprises two superposed plates which are spaced by a gap big enough to allow the passage of a sheet between them.
  • the means for driving the oscillation advantageously derive their motion from the crank and link mechanism which drives the reciprocating movement of the sliders 10.

Landscapes

  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
EP11156349A 2010-03-03 2011-03-01 Dispositif de pliage de feuilles Withdrawn EP2363366A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITBO2010A000124A IT1398486B1 (it) 2010-03-03 2010-03-03 Dispositivo per la piegatura di fogli

Publications (1)

Publication Number Publication Date
EP2363366A1 true EP2363366A1 (fr) 2011-09-07

Family

ID=42831586

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11156349A Withdrawn EP2363366A1 (fr) 2010-03-03 2011-03-01 Dispositif de pliage de feuilles

Country Status (2)

Country Link
EP (1) EP2363366A1 (fr)
IT (1) IT1398486B1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110306482A1 (en) * 2009-02-18 2011-12-15 Sprick Gmbh Bielefelder Papierund Wellpappenwerke & Co. Drive mechanism for a device for laying a fibrous material web in a leporello fold
CN115195090A (zh) * 2022-06-28 2022-10-18 陕西臻瑞汽车部件有限公司 一种热片材铺料设备

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58100065A (ja) * 1981-12-09 1983-06-14 Hiroshi Hatahara 帯状紙のジグザグ折り曲げ方法
US4573958A (en) * 1984-05-08 1986-03-04 Biesinger Peter J Cuttling machine for continuous input of web
US4573670A (en) * 1983-12-07 1986-03-04 Jos. Hunkeler Ltd. Apparatus for folding and stacking of continuous web in zigzag arrangement
WO1999016693A1 (fr) * 1997-09-29 1999-04-08 Stac Pac Technologies Inc. Appareil d'emballage d'une bande de matiere

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58100065A (ja) * 1981-12-09 1983-06-14 Hiroshi Hatahara 帯状紙のジグザグ折り曲げ方法
US4573670A (en) * 1983-12-07 1986-03-04 Jos. Hunkeler Ltd. Apparatus for folding and stacking of continuous web in zigzag arrangement
US4573958A (en) * 1984-05-08 1986-03-04 Biesinger Peter J Cuttling machine for continuous input of web
WO1999016693A1 (fr) * 1997-09-29 1999-04-08 Stac Pac Technologies Inc. Appareil d'emballage d'une bande de matiere

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110306482A1 (en) * 2009-02-18 2011-12-15 Sprick Gmbh Bielefelder Papierund Wellpappenwerke & Co. Drive mechanism for a device for laying a fibrous material web in a leporello fold
US9061860B2 (en) * 2009-02-18 2015-06-23 Sprick Gmbh Bielefelder Papier-Und Wellpappenwerke & Co. Drive mechanism for a device for laying a fibrous material web in a Leporello fold
CN115195090A (zh) * 2022-06-28 2022-10-18 陕西臻瑞汽车部件有限公司 一种热片材铺料设备

Also Published As

Publication number Publication date
IT1398486B1 (it) 2013-03-01
ITBO20100124A1 (it) 2011-09-04

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