Title:
METHOD AND APPARATUS FOR PACKAGING PRINTED ARTICLES SUCH AS NEWSPAPERS IN SHEET WRAPPERS
Document Type and Number:
WIPO Patent Application WO/2000/064738
Kind Code:
A2
Abstract:
For individual foil packaging of newspapers which are delivered from a rotary printing press with high capacity, the newspapers are fed hanging down from a gripping conveyor which bring the newspapers to fall down into a V-shaped gap between two foil webs (22, 24), which in brought-together condition in under a retaining pressure belt (10) are thereafter fed for partial circulation around a drum element (8). The foils are fed at such a speed that a certain small interval will arise in between the newspapers arriving successively between the two webs. The drum element (8) is configured with integrated welding jaws (36), the movement of which is synchronised within said interval for carrying out transverse welding of the foil webs in between the items, and outer welding rollers (42) effect a longitudinal welding along the side edges of the webs. The webs are cut through along the transverse welds by means of operable co-rotating knives on the drum element, and in their passage of a reversing roller (14) for the retaining pressure belt (10), the now individually-packaged items are discharged to a conveyor for further transport.
Inventors:
HANSEN ERIK J (DK)
Application Number:
PCT/DK2000/000204
Publication Date:
November 02, 2000
Filing Date:
April 19, 2000
Export Citation:
Assignee:
SCHUR PACKAGING SYSTEMS AS (DK)
HANSEN ERIK J (DK)
HANSEN ERIK J (DK)
International Classes:
B65B9/02; B65B25/14; (IPC1-7): B65B/
Foreign References:
| EP0331242A1 | 1989-09-06 | |||
| US4683708A | 1987-08-04 | |||
| US5335484A | 1994-08-09 |
Other References:
DATABASE WPI Section PQ, Week 199921 Derwent Publications Ltd., London, GB; Class Q31, AN 1999-248153 XP002901210 & JP 11 070913 A (DOWA SEISAKUSHO KK), 16 March 1999 (1999-03-16)
Attorney, Agent or Firm:
Skøtt-jensen, Patentingeniører A/s K. (Lemmingvej 225 Hasselager, DK)
Download PDF:
Claims:
C L A I M S
| 1. | Method for the foil packaging of newspapers and similar printed items which are fed with great capacity e. g. from a rotary printing press, c h a r a c t e r i s e d in that the items are fed in the hanging down position by means of a gripping conveyor which brings the items to fall down in a Vshaped gap between two opposite, moving foil webs which are broader than the items, and which are fed further in clampedtogether condition with the printed items lying seri ally between the webs and with a short interval between them, in that the webs are fed partly around a rotating drum ele ment in under a retaining pressure belt along a welding sec tion, where while being pressed against the belt from the outside they are subjected to a weldingtogether in the transverse areas between the items and in the longitudinal edge areas outside the items, after which the items thus packaged are separated at the said transverse areas, prefera bly by means of corotating, operable knife elements on the drum element and during continued clamping between the drum element and said retaining pressure belt, in that in their passage of a reversing roller for the retaining pressure belt the items are released for delivery to conveyor means for further transport. |
| 2. | Method according to claim 1, c h a r a c t e r i s e d in that the said transverse welds are carried out by means of corotating welding jaws on the drum element. |
| 3. | Apparatus for the execution of the method ac cording to claim 1, c h a r a c t e r i s e d in that its main component part consists of a drum element (8) configured with corotating, axially extending welding jaws, preferably in combined configuration with operable knife elements, and that it further comprises feeding rollers for a retaining pressure belt (10) which presses in against the surface of the drum along an apprecia ble segment of same, and feeding means for the delivery of two opposite foil webs (22,24) via a Vshaped itemdelivery sequence for circulation around said drum element along said segment, and means for longitudinal welding together of said foil webs along their outer edges. |
| 4. | Apparatus according to claim 3, c h a r a c t e r i s e d in that said knife elements consist of knife beams which can be displaced radially and which are provided with protruding, serrated knife blades. |
Description:
INTERNATIONALSEARCHREPORT tntemationatApplicationNo PCT/DK00/00204 C. (Continuauon) DOCUMENTS CONSIDEREDTOBERELEVANT Category ° Citabonofdocument,wnhindication,whereappropriate,ofthereleva
ntpassagesRelevanttoclaimNo. ADATABASEWPI1-4 SectionPQ,Week199921 DerwentPublicationsLtd.,London,GB; ClassQ31,AN1999-248153 XP002901210 &JP11070913A(DOWASEISAKUSHOKK), 16March1999(1999-03-16) abstract 1 INTERNATIONALSEARCHREPORT i------------------- ! International ApplicationNo Intormation on patent family members PCT/dK 00/00204 PatentdocumentPublicationPatentfamilyPublication citedinsearchreportdatemember(s)date EP0331242A06-09-1989IT1216487B08-03-1990 AT83452T15-01-1993 CA1301044A19-05-1992 DE68903848D28-01-1993 DE68903848T19-05-1993 ES2036788T01-06-1993 GR3006791T30-06-1993 US4964263A23-10-1990 US4683708A04-08-1987CH667854A15-11-1988 DE3603286A18-09-1986 GB2174058A,B29-10-1986 JP2076373C25-07-1996 JP7108700B22-11-1995 JP61217319A26-09-1986 US5335484A09-08-1994DE69203539D24-08-1995 DE69203539T04-04-1996 EP0517404A09-12-1992 JP5262312A12-10-1993 JP11070913A16-03-1999NONE
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