EP3406408A1 - Vorrichtung und verfahren zum schneiden zur trennung von beuteln für flexible verpackungen aus laminierten folien - Google Patents

Vorrichtung und verfahren zum schneiden zur trennung von beuteln für flexible verpackungen aus laminierten folien Download PDF

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Publication number
EP3406408A1
EP3406408A1 EP18172308.1A EP18172308A EP3406408A1 EP 3406408 A1 EP3406408 A1 EP 3406408A1 EP 18172308 A EP18172308 A EP 18172308A EP 3406408 A1 EP3406408 A1 EP 3406408A1
Authority
EP
European Patent Office
Prior art keywords
film
cutting
blades
block
bags
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Withdrawn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
EP18172308.1A
Other languages
English (en)
French (fr)
Inventor
Roberto Trezzi
Maurizio Toniato
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.)
Mobert Srl
Original Assignee
Mobert 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 Mobert Srl filed Critical Mobert Srl
Publication of EP3406408A1 publication Critical patent/EP3406408A1/de
Withdrawn legal-status Critical Current

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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
    • B26D7/01—Means for holding or positioning work
    • B26D7/02—Means for holding or positioning work with clamping means
    • 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
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/04—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member
    • B26D1/06—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member wherein the cutting member reciprocates
    • B26D1/10—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member wherein the cutting member reciprocates in, or substantially in, a direction parallel to the cutting edge
    • B26D1/11—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member wherein the cutting member reciprocates in, or substantially in, a direction parallel to the cutting edge with a plurality of cutting members
    • B26D1/115—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member wherein the cutting member reciprocates in, or substantially in, a direction parallel to the cutting edge with a plurality of cutting members for thin material, e.g. for sheets, strips or the like
    • 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
    • B26D3/00—Cutting work characterised by the nature of the cut made; Apparatus therefor
    • B26D3/14—Forming notches in marginal portion of work by cutting
    • 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
    • B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D5/08—Means for actuating the cutting member to effect the cut
    • 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
    • B26D7/18—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
    • 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
    • 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
    • B65H35/04—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers from or with transverse cutters or perforators
    • B65H35/06—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers from or with transverse cutters or perforators from or with blade, e.g. shear-blade, cutters or perforators
    • 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
    • B65H2301/5151—Cutting handled material transversally to feeding direction
    • B65H2301/51512—Cutting handled material transversally to feeding direction using a cutting member moving linearly in a plane parallel to the surface of the web and along a direction crossing the handled material
    • 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
    • B65H2301/51532—Blade cutter, e.g. single blade cutter
    • B65H2301/515326—Multiple blade cutter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/19—Specific article or web
    • B65H2701/191—Bags, sachets and pouches or the like

Definitions

  • the object of the present invention is a device and a relative method of cutting for the separation of bags for flexible packaging obtained from laminated films, for containing foodstuffs for humans, animal feed, etc.
  • the laminated films used for the formation of these bags also comprise at least one layer of aluminium or in any case materials which have a certain rigidity.
  • These laminated films are adequately shaped by means of folding and longitudinal welding to form a tubular shape, formation of possible side gussets, welds and transverse cuts in order to separate the bags one from the other, that is to cut the tubular shape to the length of the bag to be formed.
  • the sharp edges of the same bag during storage and transport go to incise the nearby bags, perforating them, or worse go to injure the end user, during configuration of the bags the corners are rounded by means of a die cutter.
  • cuts 2 are formed with V shape with rounded edges.
  • This operation is normally performed by forming a first cut at the theoretical distance of a millimetre from the apex 3 of the V-shaped die cut 2.
  • the film is made to move forwards by 2 mm from right to left with reference to Figures 1 to 3 and a second cut is performed, removing a portion of product 4 of 2 mm.
  • the film is made to move forwards continuously for the performing of certain operations, such as longitudinal folding, and intermittently for the performing of other operations, such as in fact die cutting and transverse cutting.
  • the object of the invention is that of eliminating the disadvantages of the prior art illustrated previously.
  • an object of the present invention is that of providing a cutting device which avoids the formation of sharp corners or "nibs" in the production of bags for flexible packaging.
  • Another object of the invention is that of providing a cutting device which avoids down times in the process of production of bags.
  • Yet another object of the invention is that of providing such a cutting device which is simple and economical to produce, as well as highly reliable.
  • Substantially the device according to the invention for the transverse cutting of laminated films at V-shaped die cuts provided on this film at distances corresponding to the length of bags to be produced comprises a pair of blades spaced one from the other, such as to be arranged on either side of an apex of said die cuts during said transverse cutting.
  • Said pair of blades is carried by a carriage movable along a linear guide placed transversely to the film.
  • Said blades are mounted on a blade holder housed in a channel obtained in a fixed block placed transversely to the film and protrude below this block through a narrow opening of said channel.
  • the film is unwound from a roll and made to move forwards initially continuously via a succession of stations, where it undergoes in particular a longitudinal folding to form a tubular shape, and subsequently intermittently in order to be subjected to operations which require that the film be at a standstill.
  • a device for transforming from continuous to intermittent the forward movement of the film.
  • the film 1 shown in Figure 4 is downstream of such a device and therefore undergoes stops during the forward movement in order to be subjected to the various operations to be performed on the stopped film, such as welds, incisions, die cuts, transverse cutting and so on.
  • the film 1 which is a laminate comprising at least one layer of aluminium or in any case a material with a certain rigidity, has been folded longitudinally to form a tubular shape, and on it V-shaped die cuts have been formed with rounded edges, at transverse lines 5 placed at a distance corresponding to the length of the bag which is intended to be obtained.
  • these die cuts 2 are performed to prevent the bags produced from having sharp edges.
  • the invention proposes the cutting device shown in Figures 5 to 7 , denoted overall by reference numeral 10.
  • the device 10 comprises two blades 11, 12 appropriately distanced one from the other, for example by approximately 2 mm, carried by an L-shaped plate 20 overturned and tipped through 180°, attached to a second overturned L-shaped plate 21, in turn attached to a carriage 22 sliding transversely on a linear guide 23 placed transversely to the machine.
  • the plates 20, 21 and the carriage 22 form a whole so that here below these elements will be identified also with the single carriage 22.
  • the carriage 22 is moved by means of a toothed belt 24 attached to the upper plate 21 by means of counter plates 25.
  • the toothed belt 24 is actuated in reciprocal motion by means of a motor and respective pinion, not shown.
  • carriage 22 can be moved in another way, for example by means of a worm screw and lead screw, pneumatic actuators and the like.
  • the blades 11 and 12 are carried by a blade holder 26 which runs along a channel 27 formed in a block 30 integral with the structure of the machine ( Figures 5 and 6 ).
  • the channel 27 is open above to allow the insertion therein of the blade holder 26, and opens below in a funnel to allow the exiting of the blades 11 and 12 which project slightly beyond the lower plane 31 of the block 30.
  • the cutting of the film 1 is performed with a single stroke of the carriage 22 which moves along the linear guide 23 transversely to the film in one direction or in the other.
  • the debris material 4 ( Figure 6 ) is evacuated between the two pressers 32 by means of puffs of air emitted by nozzles 35 placed at regular intervals in the block 30, which direct the air in the channel 27, as shown in Figure 6 .
  • FIG. 4 schematises the double cutting which is performed transversely to the film 1 with the device according to the invention, producing the elimination from the film of a transverse strip 4 of material, whose width d corresponds to the centre distance between the blades 11, 12.

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Making Paper Articles (AREA)
EP18172308.1A 2017-05-16 2018-05-15 Vorrichtung und verfahren zum schneiden zur trennung von beuteln für flexible verpackungen aus laminierten folien Withdrawn EP3406408A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT102017000052951A IT201700052951A1 (it) 2017-05-16 2017-05-16 Dispositivo e metodo di taglio per la separazione di buste per imballaggi flessibili ottenute da film laminati

Publications (1)

Publication Number Publication Date
EP3406408A1 true EP3406408A1 (de) 2018-11-28

Family

ID=60020363

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18172308.1A Withdrawn EP3406408A1 (de) 2017-05-16 2018-05-15 Vorrichtung und verfahren zum schneiden zur trennung von beuteln für flexible verpackungen aus laminierten folien

Country Status (2)

Country Link
EP (1) EP3406408A1 (de)
IT (1) IT201700052951A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020124907A1 (zh) * 2018-12-21 2020-06-25 宁波经纬数控设备有限公司 图文送纸切割机的机头

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2230067A2 (de) * 2009-03-20 2010-09-22 Mobert S.r.l Maschine und Verfahren zur Herstellung von Rollen aus vorgeschnittenen Beuteln mit zugeschnittenen Griffen
US20150174778A1 (en) * 2013-12-19 2015-06-25 Seiko Ltd. Trimmer apparatus

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2230067A2 (de) * 2009-03-20 2010-09-22 Mobert S.r.l Maschine und Verfahren zur Herstellung von Rollen aus vorgeschnittenen Beuteln mit zugeschnittenen Griffen
US20150174778A1 (en) * 2013-12-19 2015-06-25 Seiko Ltd. Trimmer apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020124907A1 (zh) * 2018-12-21 2020-06-25 宁波经纬数控设备有限公司 图文送纸切割机的机头

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Publication number Publication date
IT201700052951A1 (it) 2018-11-16

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