EP3181311B1 - Dispositif de détachement de portions d'une nappe de tissus - Google Patents

Dispositif de détachement de portions d'une nappe de tissus Download PDF

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Publication number
EP3181311B1
EP3181311B1 EP16002559.9A EP16002559A EP3181311B1 EP 3181311 B1 EP3181311 B1 EP 3181311B1 EP 16002559 A EP16002559 A EP 16002559A EP 3181311 B1 EP3181311 B1 EP 3181311B1
Authority
EP
European Patent Office
Prior art keywords
vacuum
cutting cylinder
cylinder
vacuum transfer
transfer roller
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.)
Active
Application number
EP16002559.9A
Other languages
German (de)
English (en)
Other versions
EP3181311A1 (fr
Inventor
Andreas Signore
Manfred Samp
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.)
Harro Hofliger Verpackungsmaschinen GmbH
Original Assignee
Harro Hofliger Verpackungsmaschinen GmbH
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 Harro Hofliger Verpackungsmaschinen GmbH filed Critical Harro Hofliger Verpackungsmaschinen GmbH
Publication of EP3181311A1 publication Critical patent/EP3181311A1/fr
Application granted granted Critical
Publication of EP3181311B1 publication Critical patent/EP3181311B1/fr
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Classifications

    • 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
    • B26D7/18—Means for removing cut-out material or waste
    • B26D7/1845—Means for removing cut-out material or waste by non mechanical means
    • B26D7/1863—Means for removing cut-out material or waste by non mechanical means by suction
    • 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
    • B26D7/18—Means for removing cut-out material or waste
    • B26D7/1845—Means for removing cut-out material or waste by non mechanical means
    • B26D7/1854—Means for removing cut-out material or waste by non mechanical means by air under pressure
    • 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
    • B26D7/27—Means for performing other operations combined with cutting
    • B26D7/32—Means for performing other operations combined with cutting for conveying or stacking cut product
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/38—Cutting-out; Stamping-out
    • B26F1/384—Cutting-out; Stamping-out using rotating drums
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H20/00—Advancing webs
    • B65H20/12—Advancing webs by suction roller
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H35/00—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers
    • B65H35/0006—Article or web delivery apparatus incorporating cutting or line-perforating devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/50—Auxiliary process performed during handling process
    • B65H2301/51—Modifying a characteristic of handled material
    • B65H2301/515—Cutting handled material
    • B65H2301/5153—Details of cutting means
    • B65H2301/51537—Vacuum means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/30—Suction means
    • B65H2406/33—Rotary suction means, e.g. roller, cylinder or drum

Definitions

  • the present invention relates to a device for extracting portions of a material web according to the preamble of claim 1, such as from WO 99/62801 A2 known.
  • the material web can be a single-layer or a multi-layer material and be present, for example, wound up on a reel body. From this reel body, the web can be deducted and processed in a timed or continuously running work process. Such web-processing processes are used, for example, in the production of wound plasters or other therapeutic plasters. It may be necessary to detach portions of the web to place these portions on other webs.
  • a device for extracting portions in which a cutting edge is pulled in a pulling section through the web. Furthermore From this document, a device is known in which a cutting edge is pressed in a rolling movement through the material web.
  • the required forces that must be applied by the device are relatively small in this case, so that the corresponding devices can be made comparatively slim and light and thus can be moved during the separation process with the moving in the transport direction web.
  • only relatively large partial areas can be separated out of the material web with both devices.
  • the present invention seeks to provide an improved device for extracting portions of a material web, which is also suitable for very small portions and allows continuous processing.
  • the device according to the invention for extracting partial regions from a material web has a vacuum cutting cylinder and a counter-cylinder, by means of which the partial regions are cut.
  • a vacuum transfer roller is present, by means of which the cut portions can be removed from the vacuum cutting cylinder. From the vacuum transfer roller, the cut portions are then placed on a conveyor belt, so that the sections can be further processed.
  • the combination of the three rollers - vacuum cutting cylinder, counter cylinder and vacuum transfer roller - makes it possible, even small product sizes of only about ten to ten millimeters or Cut out even smaller from the material web.
  • the subregions can be used, for example, as a drug reservoir in transdermal therapeutic systems. Such patches are getting smaller, so that always small portions of the web must be cut out.
  • the transfer of the cut portions from the vacuum cutting cylinder directly to a conveyor belt is a critical step, since this removal is often difficult and leads to increased rejects.
  • the cut portions may remain stuck in the vacuum cutting cylinder, which can complicate the transfer to the conveyor belt.
  • the use of the vacuum transfer roller allows a clean and accurate removal of the cut products from the vacuum cutting cylinder and an exact storage of the cut products on the conveyor belt.
  • the material web containing the drug is so valuable that as little waste and waste as possible when cutting the required areas should arise. Therefore, as little space as possible should be present between the subregions necessary for further processing.
  • the subregions therefore, in the direction of travel of the material web, generally adjoin one another directly and are only separated from each other by the cutting line.
  • a so-called cold flow of the adhesive material may occur. Due to the cold flow, the adhesive material flows slightly outward, so that the adjacent subregions stick together again when they are no longer separated by the cutting edges of the vacuum cutting cylinder.
  • the rotational speed of the vacuum transfer roller may be slightly larger than the rotational speed of the vacuum cutting cylinder.
  • the cut portions are slightly in the direction of travel Spread apart, so that a bonding of the sections by cold flow is no longer possible.
  • the slightly greater rotational speed of the vacuum transfer roller can preferably be effected by a separate motor drive of the vacuum transfer roller.
  • the transfer of the cut portions of the vacuum cutting cylinder to the vacuum transfer roller can be done by differently set negative pressures of the two rolls. Thus, it may be sufficient if the vacuum transfer roller identifies a greater negative pressure than the vacuum cutting cylinder in order to ensure exact removal of the sections from the vacuum cutting cylinder. In particular, with adhesive-containing material webs, however, it may be advantageous to connect the vacuum cutting cylinder to a compressed air channel, so that the transfer of the cut portions can be facilitated and accelerated by one or more blasts of compressed air.
  • a fixed hollow cylinder may be present below the lateral surface of the vacuum cutting cylinder, which has at least two chambers in cross-section.
  • One of the two chambers may be connected to a vacuum pump, while the other of the two chambers may be connected to a compressed air channel.
  • the vacuum cutting cylinder in the area of the counter-cylinder permanently and reliably have a constant negative pressure, so that an exact cutting result can be achieved.
  • normal pressure or even a slight overpressure may be present, so that a simple and safe removal of the cut products from the vacuum cutting cylinder is possible.
  • the transfer of the cut portions of the vacuum transfer roller on the conveyor belt may preferably by a blast of compressed air respectively.
  • the vacuum transfer roller may be connected to a compressed air channel, so that in the transfer region between the vacuum transfer roller and conveyor belt no negative pressure prevails on the vacuum transfer roller.
  • a stationary hollow cylinder may be present, which has at least two chambers in cross-section. One of the two chambers may be connected to a vacuum pump, while the other of the two chambers may be connected to a compressed air channel.
  • the vacuum transfer roller in the region of the vacuum cutting cylinder can permanently and reliably have a constant negative pressure, so that a reproducible and safe removal of the cut portions from the vacuum cutting cylinder is possible.
  • normal pressure or even a slight overpressure may be present, so that a simple and safe transfer of the cut products to the conveyor belt is possible.
  • the conveyor belt may be formed as a vacuum conveyor belt. This allows a safe transport of the cut products. Especially with products made of adhesive-containing material webs, a slipping of the cut products on the conveyor belt could lead to subsequent sticking of the cut products, so that they can no longer be processed and disposed of as scrap. This slippage can be prevented by the use of a vacuum conveyor belt.
  • the transport speed of the conveyor belt is slightly greater than the rotational speed of the vacuum transfer roller. As a result, the cut portions are further spread apart in the transport direction, so that the risk of sticking of the portions by cold flow of the adhesive material can be further reduced.
  • the inventive device 10 for extracting portions 12 of a material web 14 is in the Fig. 1 and 2 shown in perspective.
  • the device 10 has a vacuum cutting cylinder 20, which is rotatably mounted and is moved by a motor drive, not shown here.
  • the lateral surface 22 of the vacuum cutting cylinder 20 has a plurality of cut edges 24 which form a plurality of identical depressions 26.
  • the outer shape of the recesses 26 corresponds to the shape of the sections to be cut 12.
  • a plurality of apertures 28 are present in each recess 26 .
  • the openings 28 are - depending on the rotational position of the vacuum cutting cylinder 20 - connected to a compressed air channel or connected to a vacuum line.
  • the vacuum cutting cylinder 20 cooperates with a counter-cylinder 30.
  • the material web 14 is fed via not shown transport rollers of the device 10 and passes in the transport direction 40 between the vacuum cutting cylinder 20 and the counter cylinder 30.
  • the direction of rotation 42 of the counter-cylinder 30 extends in the clockwise direction, while the rotational direction 44 of the vacuum cutting cylinder 20 runs counterclockwise.
  • the individual portions 12 are cut out of the material web 14.
  • the partial regions 12 are first transported further in the recesses 26 of the vacuum cutting cylinder 20 until they are transferred to the vacuum transfer roller 50.
  • the vacuum transfer roller 50 has in its otherwise smooth lateral surface 52 a plurality of apertures 54 which can be acted upon by compressed air or negative pressure.
  • the vacuum transfer roller 50 is mounted rotatably and is rotatably driven by its own motor drive.
  • the direction of rotation 56 of the vacuum transfer roller 50 runs in the present example in the clockwise direction.
  • the rotational speed of the vacuum transfer roller 50 can be selected independently of the rotational speed of the vacuum cutting cylinder 20 due to the separate motor drive. In the present example case, the rotational speed of the vacuum transfer roller 50 is slightly greater than the rotational speed of the vacuum cutting cylinder 20. This makes it possible to separate the cut portions 12 when transferred to the vacuum transfer roller 50 in the transport direction by a certain amount 58 from each other and thus ceremoniesspreizen.
  • the two edge strips 60, 64 are required in order to cut slightly rounded portions 12 at the corners can. If it is possible to dispense with the rounding of the corner regions, no edge strips 60, 64 would be required.
  • the middle strip 62 is required in the present example, to be able to ensure a certain distance between two in the longitudinal direction of the vacuum cutting cylinder 20 adjacent portions 12, so that they can not stick together again by cold flow. Depending on the width of the material web 14 and the product size of the partial regions 12, more or fewer central strips 62 may also result.
  • the negative pressure of the vacuum transfer roller 50 is greater than the negative pressure of the vacuum cutting cylinder 20. Should This pressure difference may not be sufficient, the vacuum of the vacuum cutting cylinder 20 can be lifted in the transfer area between the vacuum transfer roller 50 and vacuum cutting cylinder 20. Optionally, a blast of compressed air could take place to eject the cut portions 12 from the recesses 26 and quickly and accurately passed to the vacuum transfer roller 50.
  • the cut portions 12 are transferred to a vacuum conveyor belt 70.
  • the transport speed As a result, the distance 72 between two successive partial regions 12 on the vacuum conveyor belt 70 is slightly greater than the distance 58 between two partial regions 12 on the vacuum transfer roller 50 Reduce sticking by cold flow.
  • the vacuum conveyor belt 70 can then transfer the cut sections 12 to further web-processing stations in order to further process the sections 12, for example, into transdermal therapeutic plasters. Due to the low waste produced, the device 10 is particularly suitable when the material web 14 contains the therapeutic agent, since such material webs are correspondingly expensive and should be used optimally.
  • different vacuum cutting cylinders 20 can be inserted into the device 10 according to the invention.
  • the storage of the vacuum cutting cylinder 20 can be selected so that even vacuum cutting cylinders 20 of different diameters can be used without major problems in the device 10, so that a rapid format change of the device 10 is possible.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Advancing Webs (AREA)

Claims (8)

  1. Dispositif (10) pour détacher des portions (12) d'une bande de matière (14),
    - avec un cylindre de découpage sous vide (20) et un contre-cylindre (30) pour découper les portions (12),
    - avec un rouleau de transfert sous vide (50) pour enlever les portions (12) du cylindre de découpage sous vide (20),
    - avec une bande transporteuse (70), sur laquelle les portions (12) peuvent être déposées par le rouleau de transfert sous vide (50),
    caractérisé en ce que la vitesse de transport de la bande transporteuse (70) est plus élevée que la vitesse de rotation du rouleau de transfert sous vide (50)
  2. Dispositif selon la revendication 1, caractérisé en ce que la vitesse de rotation du rouleau de transfert sous vide (50) est plus élevée que la vitesse de rotation du cylindre de découpage sous vide (20).
  3. Dispositif selon la revendication 2, caractérisé en ce que
    - il se trouve un premier entraînement motorisé, au moyen duquel le cylindre de découpage sous vide (20) peut être entraîné en rotation,
    - il se trouve un second entraînement motorisé, au moyen duquel le rouleau de transfert sous vide (50) peut être entraîné en rotation.
  4. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que le cylindre de découpage sous vide (20) est raccordé à un canal d'air comprimé.
  5. Dispositif selon la revendication 4, caractérisé en ce que
    - il se trouve un cylindre creux immobile en dessous de la surface latérale (22) du cylindre de découpage sous vide (20),
    - le cylindre creux immobile présente en section transversale au moins deux chambres,
    - une première desdites au moins deux chambres est raccordée à une pompe à vide,
    - l'autre desdites au moins deux chambres est raccordée à un canal d'air comprimé.
  6. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que le rouleau de transfert sous vide (50) est raccordé à un canal d'air comprimé.
  7. Dispositif selon la revendication 6, caractérisé en ce que
    - il se trouve un cylindre creux immobile en dessous de la surface latérale (52) du rouleau de transfert sous vide (50),
    - le cylindre creux immobile présente en section transversale au moins deux chambres,
    - une première desdites au moins deux chambres est raccordée à une pompe à vide,
    - l'autre desdites au moins deux chambres est raccordée à un canal d'air comprimé.
  8. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que la bande transporteuse est constituée par une bande transporteuse sous vide (70).
EP16002559.9A 2015-12-14 2016-12-01 Dispositif de détachement de portions d'une nappe de tissus Active EP3181311B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202015008522.9U DE202015008522U1 (de) 2015-12-14 2015-12-14 Vorrichtung zum Herauslösen von Teilbereichen aus einer Materialbahn

Publications (2)

Publication Number Publication Date
EP3181311A1 EP3181311A1 (fr) 2017-06-21
EP3181311B1 true EP3181311B1 (fr) 2018-07-25

Family

ID=55274313

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16002559.9A Active EP3181311B1 (fr) 2015-12-14 2016-12-01 Dispositif de détachement de portions d'une nappe de tissus

Country Status (3)

Country Link
US (1) US20170165860A1 (fr)
EP (1) EP3181311B1 (fr)
DE (1) DE202015008522U1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3275820B1 (fr) 2016-07-28 2020-07-01 Harro Höfliger Verpackungsmaschinen GmbH Dispositif de coupe d'une bande de materiau en tronçons

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3957570A (en) * 1971-10-13 1976-05-18 F. L. Smithe Machine Company, Inc. Machinery for patching envelopes and the like
US3911805A (en) * 1974-12-24 1975-10-14 Procter & Gamble Apparatus for cutting, shaping and transferring flexible preforms
US4846774A (en) * 1988-01-26 1989-07-11 Bernal Rotary Systems, Inc. Rotary die cutting and laminating process and machine
DE4023257C2 (de) * 1990-07-21 1993-12-02 Heidelberger Druckmasch Ag Querschneider für mit Druckbildern versehene Materialbahnen
US6165306A (en) * 1998-06-01 2000-12-26 Kimberly-Clark Worldwide, Inc. Process and apparatus for cutting of discrete components of a multi-component workpiece and depositing them with registration on a moving web of material
DE29911914U1 (de) 1999-07-13 1999-09-09 Harro Höfliger Verpackungsmaschinen GmbH, 71573 Allmersbach Vorrichtung zum Herauslösen von Teilbereichen aus einem bahnartigen Folienmaterial
DE10300234B3 (de) * 2003-01-08 2004-07-15 WINKLER + DüNNEBIER AG Vorrichtung und Verfahren zur Nutzentrennung in einer Maschine zur Herstellung von aus einer Materialbahn ausgeschnittenen Flachmaterialstücken
DE10321778B4 (de) * 2003-05-14 2006-03-30 Windmöller & Hölscher Kg Schneid- und Transportwalze in einer Wickelvorrichtung zum Aufwickeln von Materialbahnen
AT500466A2 (de) * 2004-07-12 2006-01-15 Bm Battery Machines Gmbh Vorrichtung zum vereinzeln von plattenförmigen gegenständen, insbesondere batterieplatten
US8424430B2 (en) * 2007-08-09 2013-04-23 Kraft Foods Group Brands Llc Food product conveyor and handling systems
US8622729B2 (en) * 2008-12-23 2014-01-07 General Mills, Inc. Dough cutting and stamping apparatus and method
US9962801B2 (en) * 2014-01-07 2018-05-08 Taiwan Semiconductor Manufacturing Company Limited Systems and methods for performing chemical mechanical planarization

Non-Patent Citations (1)

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Title
None *

Also Published As

Publication number Publication date
EP3181311A1 (fr) 2017-06-21
DE202015008522U1 (de) 2016-01-19
US20170165860A1 (en) 2017-06-15

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