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GB2197815A - Method of and apparatus for stabilizing extremely thin packing material - Google Patents

Method of and apparatus for stabilizing extremely thin packing material Download PDF

Info

Publication number
GB2197815A
GB2197815A GB08723638A GB8723638A GB2197815A GB 2197815 A GB2197815 A GB 2197815A GB 08723638 A GB08723638 A GB 08723638A GB 8723638 A GB8723638 A GB 8723638A GB 2197815 A GB2197815 A GB 2197815A
Authority
GB
United Kingdom
Prior art keywords
packing material
material sheet
cutting device
air blowing
extremely thin
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Withdrawn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
GB08723638A
Other versions
GB8723638D0 (en
Inventor
Gert Wehnew
Gunter Forster
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.)
Nagema VEB
Original Assignee
Nagema VEB
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 Nagema VEB filed Critical Nagema VEB
Publication of GB8723638D0 publication Critical patent/GB8723638D0/en
Publication of GB2197815A publication Critical patent/GB2197815A/en
Withdrawn legal-status Critical Current

Links

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
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/70—Article bending or stiffening arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/01—Means for holding or positioning work
    • B26D7/015—Means for holding or positioning work for sheet material or piles of sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/08—Means for treating work or cutting member to facilitate cutting
    • B26D7/14—Means for treating work or cutting member to facilitate cutting by tensioning the work
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Advancing Webs (AREA)
  • Basic Packing Technique (AREA)

Description

215 1 QIR 7 CS, Labilizing extremely thin packing material Yethod of and
apparatus for st This invention relates to a method and apparatus for stabilizing extremely thin packing materialp wherein a packing material sheet is pulled by pulling rolls from a reely packing material portions are out off by a cutting device and these are supplied to a packaging machine.
Apparatuses for feeding packing materiRl of low intrinsic stiffness by means of rolls and guide devices to a packaging machine are already known, wherein one or more nozzles are disposed inside the guide devices, which nozzles produce air flows in the direction of conveying of the sheet, the flowing air producing, in the guide device, a auction above the air outlet openings, by which a-action the sheet is tightened and stabilized. Such a solution is apparent from DD-PS 47 332. A -C these solutions is that, where special sheets, espe- disadvantage o. cially PP sheets of thickness not exceeding 0.025 mm exe used, reliable conveying of the Dacldng material in the region of -the free forward feed between paper table aud grip-per wheel is not ensured. This leeAs to kinking of such sheets, or the sheets curl up due to the increased static loading as they are fed around the cutting device.
lú Furthermoret solutIons are known, in vhich shrink sheet's run over sheet pulling-off rolls before the packaging station, these rolls being equipped at intervals with annular grooves, into which pipes which can 1 M be supplied with compressed air penetrate. such a solution is apparent from DE-GM 19 34 934. Thess solutions also are accompanied by the drawback that in the region of the free forward feed between paper table ana gripper wheel, kinking of extremely thin sheets does occur.
The objective of the invention is to broaden the field of application of packaEing machines to the processing of extremely thin packing Materials.
The tae'.,c of the invention consists in stabilizing extremely thin packing material in the region of the free feed between paper table and gripper wheel. The task is achieved, in respect of the Process, in that the cross-section of the free end of the packing material sheet is made nonplanar before the packing material portion is cut off. The non-planar croce-section of the free end. of the packing material sheet is formed continuously before cutting-off. The cross-section of the free end of the packing material sheet is preferably brought into a downwardly open, circular are form.
In respect of apparatus, the task is achieved in that, in the region of the cutting device, an air blowing pips is disposed parallel to the cutting 'device above the packing material sheet and an air blowing bar is so disposed below the packing material sheet. The air blowing pipe is mounted pivotal in front of the cutting device above the Packing nateriall sheet. Me air blowin& pipe possesses nozzles orientated onto the packin& material sheet, the spacing of the nozzles being slightly smaller than the width of the sheet, this nozzle spacing being arranged Symmetrically about the centre of the packing material sheet.
On the air blowing bar$ nozzles orientated onto the centre of the packing material sheet are mounted. it is thereby possible to use packaging machines also for the processing of extremely thin packing material and thus to save packing material.
The invention is explained in more detail below by means of an exam.ple of embodiment by reference to a drawing.
A packinE material sheet (P) is drawn off in known manner from a teel, not shown, the cross-section of the free end of the packing material sheet (P) after the cutting device (3) being continuously formed nonplanar before cutting off. The cross-section is preferably brought into a downwardly open circular are form by the action of blowing air.
The apparatus consists of the pulling rolls (1) for pulling and conveying the packing material sheet (P), of the air blowing pipe (2) comprising nozzles (21), which is mounted above the packing material sheet (P) in front of the cutting device (5), and of the air blowing bar (4) comprising nozzles (4')s which -4a mounted beneath the packing material sheet (P) immediately after the cutting device (3). The packing material portion (A) with the already shaped cross-section is again shown in front of the gripper wheel (5).
nie method of functioninE of the apparatus is as followss 7he packing material sheet (P), drawn by the pulling rolls (1) from a reel, not shown, is conducted underneath the air blowing pipe (2) through the cutting device (3) and above the air blowing bar (4).
T Ihe free end of the packing material sheet (P), situated between the cutting device (3) and the gripper wheel (5)y is continuously brought into the downwardly open$ circular arc form after the cutting device (3). This circular arc form is produced by the blowing air, issuing from the nozzles (21) of the air blowing pipe (2), pressing the edEe zones of the packing material sheet (P) downwards and the blowing air iss-aing from the nozzles (4') of the air blowing bar (4) raising the packing material sheet (P) in the centre. From the free end of the packing material sheet (P)q the packing material portion (A) is then cut off by the cutting device (3), which portion is already gripped at this time by the grippers of the g-ripper wheel (5).

Claims (1)

  1. Claims
    Method of stabilizing extremely thin packing material, wherein portions of packing material are cut off from a packing material sheet and are supplied to a packaging machine, characterized in that the cross-section of the free end of the packing material sheet (P) ir, made non-planar before the packing material portion (A) is cut off.
    2. Method according to Claim 1, characterized in that the non-planar croes-section of the free end of the packing material sheet (P) is continuously formed before cuttinE-off. ' Method according to Claim 1, characterized in that the crosssection of the free end of the packing material sheet (P) is preferably brought into a downwardly open circular arc form.
    4.
    Apparatus for carrying out the methody consisting of pulling rolls for pulling-off the packing material sheet and a cutting device for cutting the packing material portions for feeding into a packaging machiney characterized in that, in the region of the cutting device (3), an air blowing pipe (2) is disposed parallel to the cutting device (3) above the packing material sheet (P)q and an air blowing bar (4) below the packing material sheet (P).
    5. Apparatus according to Claim 49 characterized in that the air blowing pipe (2) is mounted pivotil before the cutting device (3) above the packing material sheet (P).
    Apparatus according to Claims 4 and 55 characterized in that the air blowing pipe (2) possesses nozzles (21) orientated towards the packing material sheet (P), the spacing of which is slightly &maller than the width of the packing material sheet (P)q the nozzle spacing being disposed symmetrically about the centre of the packing material sheet (P).
    9- Apparatus according to Claim 4, characterized in that nozzles (41), orientated towards the centre of the packing material sheet (P), are mountei on the air blowinff bar (4).
    Method of stabilizing extremely thin packing material as claimed in Claim 1 substantially as described in the example disclosed herein.
    Apparatus as claimed in Claim 4 substantially as described with reference to the accompanying drawing.
GB08723638A 1986-11-05 1987-10-08 Method of and apparatus for stabilizing extremely thin packing material Withdrawn GB2197815A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DD86295916A DD255710A1 (en) 1986-11-05 1986-11-05 METHOD AND DEVICE FOR STABILIZING EXTREME THIN PACKAGING AGENTS

Publications (2)

Publication Number Publication Date
GB8723638D0 GB8723638D0 (en) 1987-11-11
GB2197815A true GB2197815A (en) 1988-06-02

Family

ID=5583587

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08723638A Withdrawn GB2197815A (en) 1986-11-05 1987-10-08 Method of and apparatus for stabilizing extremely thin packing material

Country Status (5)

Country Link
BR (1) BR8705470A (en)
DD (1) DD255710A1 (en)
DE (1) DE3727358A1 (en)
GB (1) GB2197815A (en)
IT (1) IT1211782B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3926679A1 (en) * 1989-08-12 1991-02-14 Herbert Ferklass METHOD AND DEVICE FOR BANDEROLING GOODS
DE4125539A1 (en) * 1991-08-01 1993-02-04 Biforce Anstalt Positioning dividing sheets between food product slices
DE19926461A1 (en) 1999-06-10 2000-12-14 Biforce Anstalt Vaduz Device for slicing food products
CN108001748B (en) * 2017-12-25 2023-09-05 山东恒盈新材料有限公司 Film pulling mechanism of film cutting equipment

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1533249A (en) * 1974-12-09 1978-11-22 Hope H Processing an elongate web of material
GB1540911A (en) * 1977-06-30 1979-02-21 Birlec Ltd Threading strip material through heat treatment floatation furnaces
GB1593695A (en) * 1977-02-23 1981-07-22 B & J Mfg Co Labelling machine
EP0111598A1 (en) * 1982-12-10 1984-06-27 International Business Machines Corporation Mechanism for cutting single thickness paper or like sheet material and apparatus including such mechanism
GB2181416A (en) * 1985-10-10 1987-04-23 Beacon Developments Ltd Web-feeding and severing methods and apparatus

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1934934U (en) * 1963-07-06 1966-03-17 Forgrove G M B H Verpackungs U MACHINE FOR PACKAGING OBJECTS IN PLASTIC FILM.
US3273775A (en) * 1964-12-02 1966-09-20 Hercules Inc Apparatus for feeding thin film to cutting knives

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1533249A (en) * 1974-12-09 1978-11-22 Hope H Processing an elongate web of material
GB1593695A (en) * 1977-02-23 1981-07-22 B & J Mfg Co Labelling machine
GB1540911A (en) * 1977-06-30 1979-02-21 Birlec Ltd Threading strip material through heat treatment floatation furnaces
EP0111598A1 (en) * 1982-12-10 1984-06-27 International Business Machines Corporation Mechanism for cutting single thickness paper or like sheet material and apparatus including such mechanism
GB2181416A (en) * 1985-10-10 1987-04-23 Beacon Developments Ltd Web-feeding and severing methods and apparatus

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
WO 84/04085 *

Also Published As

Publication number Publication date
IT1211782B (en) 1989-11-03
IT8748393A0 (en) 1987-09-16
DE3727358C2 (en) 1989-08-17
DE3727358A1 (en) 1988-05-19
BR8705470A (en) 1988-06-14
DD255710A1 (en) 1988-04-13
GB8723638D0 (en) 1987-11-11

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)