EP0574647A1 - Verfahren und Vorrichtung zur Herstellung von Bündeln gefalteter Bogen aus Polyethylen-Papier - Google Patents

Verfahren und Vorrichtung zur Herstellung von Bündeln gefalteter Bogen aus Polyethylen-Papier Download PDF

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Publication number
EP0574647A1
EP0574647A1 EP92830324A EP92830324A EP0574647A1 EP 0574647 A1 EP0574647 A1 EP 0574647A1 EP 92830324 A EP92830324 A EP 92830324A EP 92830324 A EP92830324 A EP 92830324A EP 0574647 A1 EP0574647 A1 EP 0574647A1
Authority
EP
European Patent Office
Prior art keywords
folded
strip
sheets
polythene
folding
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
EP92830324A
Other languages
English (en)
French (fr)
Other versions
EP0574647B1 (de
Inventor
Goffredo Papeschi
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.)
TOSCOCARTA SpA
Original Assignee
TOSCOCARTA 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 TOSCOCARTA SpA filed Critical TOSCOCARTA SpA
Priority to EP92830324A priority Critical patent/EP0574647B1/de
Priority to DE69213223T priority patent/DE69213223T2/de
Priority to AT92830324T priority patent/ATE141893T1/de
Publication of EP0574647A1 publication Critical patent/EP0574647A1/de
Application granted granted Critical
Publication of EP0574647B1 publication Critical patent/EP0574647B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B65H45/12—Folding articles or webs with application of pressure to define or form crease lines
    • B65H45/22—Longitudinal folders, i.e. for folding moving sheet material parallel to the direction of movement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/02—Delivering or advancing articles from machines; Advancing articles to or into piles by mechanical grippers engaging the leading edge only of the articles
    • B65H29/06—Delivering or advancing articles from machines; Advancing articles to or into piles by mechanical grippers engaging the leading edge only of the articles the grippers being carried by rotating members

Definitions

  • the present invention relates to a method and an apparatus for producing packages of polythene sheets of paper folded in half.
  • the present invention aims to eliminate the aforementioned drawbacks.
  • the advantages obtained by virtue of the present invention essentially consist in the fact that the polythene surface of the sheet is placed inside the fold so that this surface is kept sterilized even long after the package has been opened; that folding in half of edges of the strip is made asymmetrically, so that the two edges, after folding, are spaced from each other and therefore the removal and extraction of each sheet of the package is extremely easy ; that it is possible to condition in the form of packages the sheets already folded, which makes it more practical for transport, packaging and installation in the place of use; that packaging in packs constitutes valid protection against external agents.
  • FIG. 1 shows in sequence the different folding and cutting phases of the continuous sheet of polythene paper
  • FIGS. 2 and 3 show the side view partially in section of an apparatus for implementing said method according to the invention.
  • the operation is as follows. During its progression with uniform displacement from the reel 1, the strip 2 of polythene paper with the polythene side facing upwards is sterilized by the means 3, then the two edges 20 are gradually folded in on themselves, towards the center of the strip, by the wheels 4 and by the iron profiled elements 5 asymmetrically, that is to say leaving the area uncovered central 21; successively the strip thus folded is precut transversely by the cylinder 8 with a blade, after which the cylinders 9 make it possible to detach the piece of strip 22 precut; then, the piece 22 thus detached from the strip 2 is gripped by a clamp 12 of the cylinder 11 and entered into rotation thereon while the blade 10 performs the axial longitudinal cutting: by continuing its rotation, the cylinder 11 passes to the above the cradles 13 and, as soon as the clamp 12 is open, the two folded sheets 23 are abandoned in the corresponding cradle 13 located below. When the packs 24 have reached the predetermined number of sheets 23, the two clamps 14 grab the sheets of the two packs from the
  • the two longitudinal folds are carried out 11 cm from the respective edges, thus leaving an uncovered central zone of 5 cm; by choosing a transverse precut step of 36 cm, we obtain sheets folded in half which, in the folded position, have a lower page 14 cm wide and an upper page 11 cm wide, that is to say say with an asymmetry of 3 cm, and which, in the unfolded position, have the dimensions 25 x 36 cm.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Air Bags (AREA)
  • Packages (AREA)
EP92830324A 1992-06-19 1992-06-19 Verfahren und Vorrichtung zur Herstellung von Bündeln gefalteter Bögen aus Polyethylen-Papier Expired - Lifetime EP0574647B1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP92830324A EP0574647B1 (de) 1992-06-19 1992-06-19 Verfahren und Vorrichtung zur Herstellung von Bündeln gefalteter Bögen aus Polyethylen-Papier
DE69213223T DE69213223T2 (de) 1992-06-19 1992-06-19 Verfahren und Vorrichtung zur Herstellung von Bündeln gefalteter Bögen aus Polyethylen-Papier
AT92830324T ATE141893T1 (de) 1992-06-19 1992-06-19 Verfahren und vorrichtung zur herstellung von bündeln gefalteter bögen aus polyethylen-papier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP92830324A EP0574647B1 (de) 1992-06-19 1992-06-19 Verfahren und Vorrichtung zur Herstellung von Bündeln gefalteter Bögen aus Polyethylen-Papier

Publications (2)

Publication Number Publication Date
EP0574647A1 true EP0574647A1 (de) 1993-12-22
EP0574647B1 EP0574647B1 (de) 1996-08-28

Family

ID=8212125

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92830324A Expired - Lifetime EP0574647B1 (de) 1992-06-19 1992-06-19 Verfahren und Vorrichtung zur Herstellung von Bündeln gefalteter Bögen aus Polyethylen-Papier

Country Status (3)

Country Link
EP (1) EP0574647B1 (de)
AT (1) ATE141893T1 (de)
DE (1) DE69213223T2 (de)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1056508A (de) * 1954-03-01
US4181069A (en) * 1978-04-28 1980-01-01 Chase Bag Company Method for producing double streams of side-welded bags in heat-welded pad form

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1056508A (de) * 1954-03-01
US4181069A (en) * 1978-04-28 1980-01-01 Chase Bag Company Method for producing double streams of side-welded bags in heat-welded pad form

Also Published As

Publication number Publication date
DE69213223D1 (de) 1996-10-02
DE69213223T2 (de) 1997-03-27
ATE141893T1 (de) 1996-09-15
EP0574647B1 (de) 1996-08-28

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