EP2090535A1 - Device for cross-cutting web materials - Google Patents
Device for cross-cutting web materials Download PDFInfo
- Publication number
- EP2090535A1 EP2090535A1 EP09152874A EP09152874A EP2090535A1 EP 2090535 A1 EP2090535 A1 EP 2090535A1 EP 09152874 A EP09152874 A EP 09152874A EP 09152874 A EP09152874 A EP 09152874A EP 2090535 A1 EP2090535 A1 EP 2090535A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- blade
- supporting member
- cam
- shaft
- counter
- 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
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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
- 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
- B65H35/08—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 revolving, e.g. cylinder, cutters or perforators
Landscapes
- Nonmetal Cutting Devices (AREA)
- Control Of Cutting Processes (AREA)
- Treatment Of Fiber Materials (AREA)
Abstract
Description
- The present invention relates to a device for cross-cutting web materials.
- The device according to the invention is particularly advantageously used as a cutter for treated paper materials and specifically decorative paper impregnated and/or coated with polymeric resins, used to manufacture floor panelling or surfacing of furniture, walls, etc. It is, however, understood that the device according to the invention can also be used in other applications and/or to cut other materials.
- According to commonly-used solutions, the webs of impregnated or coated decorative papers are cut into sheets by means of rotary cutters having two synchronized rotating rollers, arranged one above the other and provided with respective mutually cooperating blades. One inconvenience of these solutions, which can be observed especially at high machining speeds and with certain types of paper, is that the cut sheet is sucked back by the lower roller, blocking the cutter and thus the entire production line.
- Other solutions known in the prior art comprise an upper blade carried by a rotating roller and a lower counter-blade that is cyclically raised towards the blade by pneumatically operated solenoid valves. These solutions, besides being relatively complex and expensive to produce and use, are not however suitable for high-speed machining, due to the time needed to actuate the solenoid valves.
- An object of the present invention is to provide a cutting device that overcomes the drawbacks of the prior art described above; in particular, an object of the invention is to provide a device for cutting web materials that is simple to produce and use and completely efficient and reliable even at high machining speeds.
- The present invention relates to a cutting device such as defined in its essential terms in claim 1 and, in its secondary features, in the dependent claims.
- The device according to the invention is simple and relatively economical to produce and use, and is at the same time completely efficient and reliable even at high machining speeds. Moreover, with respect to the solutions known in the prior art, with the device according to the invention the distance between the blade and counter-blade can easily be adjusted, a significant reduction can be achieved in the turbulence in the cutting area (due to the fact that the stroke of the counter-blade can be very short), the speed of rotation of the blade and operation of the counter-blade can be adjusted and controlled separately.
- Further characteristics and advantages of the present invention will become clear from the following description of a non-limiting embodiment thereof, with reference to the figures in the accompanying drawings, in which:
-
figure 1 is a schematic front elevation view of a cutting device according to the invention; -
figures 2 and 3 are cross-sectional views along the line II outlined infigure 1 , in which the device according to the invention is shown in respective operating positions. - In
figures 1 and2 designated as a whole by number 1 is a device for cross-cutting aweb material 2, in particular a paper material such as decorative paper impregnated and/or coated with polymeric resins, to be used for instance to manufacture floor panelling or surfacing of furniture, walls, etc. - The
material 2 is fed to the device 1 along a feeding direction D by means of a feed system 3 that is of a known kind, for example of the type having rollers 4 (which may or may not be motor-powered) between which thematerial 2 passes. Thematerial 2 enters the device 1 through anentrance 5; the device cuts thematerial 2 crosswise with respect to the feeding direction D to form a plurality of sheets 6 that leave the device 1 through an exit 7 to be stacked in a specific stacking station, of a type that is known and not illustrated, arranged downstream of the device 1. - The device 1 comprises a
blade 10 carried by aroller 11 that rotates about an axis R of rotation, acounter-blade 12 carried by a movable supportingmember 13, and anactuator system 14 that brings theblade 10 and thecounter-blade 12 so as to cyclically cooperate with one another. - The
roller 11 is supported rotatingly about the axis R by aframe 15 of the device 1; theroller 11 is motor-powered, being driven by amotor 16; in particular, opposite axial ends of theroller 11 are provided respectively with adriving shaft 17 and apin 18 inserted inrespective bearings 19 carried by theframe 15. Theshaft 17 is connected to themotor 16 by means of areduction gear 20 and atransmission 21, for example comprising atoothed belt 22 mounted onpulleys 23. According to an alternative embodiment that is not illustrated, themotor 16, for example a torque motor, acts instead directly on theshaft 17. - The
roller 11 has alongitudinal slot 28 that houses theblade 10; theblade 10 extends longitudinally along theroller 11, substantially parallel to the axis R or slightly curved, for example helically wound. - The
member 13 faces theroller 11 and extends longitudinally substantially parallel to theroller 11; theroller 11 and themember 13 are arranged on opposite sides of thematerial 2 crosswise with respect to thematerial 2 and to the feeding direction D. - The
member 13 is longitudinally elongated and can be variously shaped, for instance in the form of a roller-shaped member, a box-shaped member, a substantially prismatically-shaped member, etc. - The
member 13 is pivotally attached to theframe 15 by means of a pair ofpins 29 having longitudinal extremities supported byrespective bearings 30 carried by theframe 15. Themember 13 is pivoted with respect to an axis A of oscillation defined by thepins 29 and substantially parallel to the axis R of rotation of theroller 11; themember 13 has a pair ofextremities - The
counter-blade 12 consists of a longitudinal blade shaped so as to cooperate with theblade 10 to cut thematerial 2 along a line substantially orthogonal to the feeding direction D. Thecounter-blade 12 projects in a cantilevered fashion from theextremity 31 of themember 13 towards theroller 11. - The
actuator system 14 comprises arotating shaft 35, substantially parallel to the axis R and to the axis A and provided with at least onecam 36 that acts on themember 13 to move themember 13 and selectively bring thecounter-blade 12 so as to cooperate with theblade 10. In particular, thecam 36 is integrally attached to theshaft 35 and rotates integrally with theshaft 35 cooperating up against acontrast member 37, for example substantially cylindrical, carried by theextremity 32 of themember 13 and arranged substantially parallel to the axis A. - Clearly, although in this description reference is made to a
single cam 36, theshaft 35 may also be provided withseveral cams 36 arranged along theshaft 35 and all cooperating with one singleelongated contrast member 37 or withrespective contrast members 37 arranged at a distance from one another. - The
cam 36 is provided with a centredportion 38, having a smaller curvature radius, and aneccentric portion 39 having a larger curvature radius. - The
shaft 35 is driven by amotor 40, preferably a brushless motor, that acts directly on theshaft 35; theshaft 35 is thus connected directly to adrive shaft 41 of themotor 40, with no reducers. - The
shaft 35 and theroller 11 are driven respectively by themotor 40 and by themotor 16, which are independent of one another and both controlled by anelectronic control unit 42 which synchronizes the operation of the twomotors roller 11, to theshaft 35 and/or to themember 13. - The
shaft 35 is rotatingly supported, by means ofbearings 43, by theframe 15, which also carries themotor 40. - The
actuator system 14 also comprises one or more tensioningmembers 44 acting on theextremity 32 of themember 13 to maintain themember 13 in a predetermined position; in the figures only asingle tensioning member 44 is illustrated, but it is understood that there may be two or more tensioningmembers 44 arranged at intervals along themember 13 parallel to the axis A and to theshaft 35. - In particular, the
tensioning member 44 is an elastic member, for example a pneumatic spring comprising one or more set pressure bellows-type pneumatic pistons. - The
cam 36 and the tensioningmember 44 are arranged on opposite sides of themember 13 and specifically of thecontrast member 37 and thus exert opposing forces on themember 13. - The
member 13 oscillates between a rest position, shown infigure 2 , in which thecounter-blade 12 is detached from thematerial 2 passing through the device 1, and a cutting position, shown infigure 3 , in which thecounter-blade 12 is in contact with thematerial 2 and cooperates with theblade 10 to cut thematerial 2. - The tensioning
member 44 maintains themember 13 in the cutting position and thecam 36 acts on themember 13 against the action of the tensioningmember 44, in particular compressing the tensioningmember 44, in order to move themember 13 into the rest position. The cam rotates by 180° to move themember 13 alternatively into the cutting position and into the rest position. - The device 1 also comprises a
system 45 for adjusting the initial position of themember 13 and thus of thecounter-blade 12 with respect to theframe 15 and thus to theblade 10. Thesystem 45 is substantially of a type known and is therefore not described or illustrated in detail for the sake of simplicity. - The operation of the device 1 for cutting the
material 2 into sheets is as follows. - The strip of
web material 2 is fed to the device 1 by means of the feed system 3. Themember 13 is in the rest position, since thecam 36 contacts thecontrast member 37 with theeccentric portion 39 and pushes themember 13 against the action exerted by the tensioningmember 44. - In order to perform the cutting operation, the
control unit 42 sends a command to make theshaft 35 rotate by 180°, which brings thecam 36 into contact with thecontrast member 37 with the centredportion 38. The tensioningmember 44 is no longer contrasted by thecam 36 and thus moves themember 13 into the cutting position. Meanwhile, theroller 11 rotates in synchronization with the movement of themember 13. Thecontrol unit 42 controls themotors roller 11 provided with theblade 10 with the rotation of theshaft 35 and thus the alternating oscillatory motion of themember 13 with thecounter-blade 12. Theblade 10 and thecounter-blade 12 are thus cyclically brought so as to cooperate with one another and cut the sheets 6. - The
shaft 35 always turns in the same direction driven by themotor 40, while themember 13 oscillates alternately about the axis A in opposite directions. - Preferably, but not necessarily, the
shaft 35 and theroller 11 rotate in the same direction and thus theblade 10 and thecounter-blade 12 are brought into contact with thematerial 2 with a simultaneous rotary movement. - Lastly, it is clear that further modifications and changes may be made to the cutting device described and illustrated herein without departing from the scope of the attached claims.
Claims (9)
- Device (1) for cross-cutting web materials, comprising a blade (10) carried by a roller (11) that rotates about an axis of rotation (R), a counter-blade (12) carried by a movable supporting member (13), and an actuator system (14) to bring the blade and the counter-blade so as to cooperate cyclically with one another; the device being characterized in that the actuator system (14) comprises a rotating shaft (35) provided with at least one cam (36) that acts on the supporting member (13) to move the supporting member (13) and selectively bring the counter-blade (12) so as to cooperate with the blade (10).
- Device according to claim 1, characterized in that the shaft (35) that carries the cam (36) is driven by a motor (40) acting directly on the shaft (35).
- Device according to one of the previous claims, characterized in that the supporting member (13) that carries the counter-blade (12) is pivoted with respect to an axis of oscillation (A) and oscillates between a rest position and a cutting position.
- Device according to claim 3, characterized in that the shaft (35) rotates in a predetermined direction and the cam (36) converts the rotary motion of the shaft (35) into alternating motion of the member (13), which oscillates alternately about the axis A in opposite directions.
- Device according to claim 3 or 4,
characterized in that the cam (36) rotates by 180° to bring the supporting member (13) alternately into the cutting position and into the rest position. - Device according to one of the previous claims, characterized by comprising at least one tensioning member (44) that acts on the supporting member (13) to maintain the supporting member (13) in a cutting position; the cam (36) acting on the supporting member (13) against the action of the tensioning member (44) so as to bring the supporting member (13) into a rest position.
- Device according to claim 6, characterized in that the tensioning member (44) is an elastic member and the cam (36) acts by compressing the tensioning member (44).
- Device according to claim 6 or 7,
characterized in that the tensioning member (44) is a pneumatic spring comprising one or more set pressure bellows-type pneumatic pistons. - Device according to one of the previous claims, characterized in that the shaft (35) provided with the cam (36) and the roller (11) that carries the blade (10) are driven by respective independent motors (40, 16), both motors (40, 16) being controlled by a control unit (42) that synchronizes the operation of the two motors (40, 16).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT000245A ITMI20080245A1 (en) | 2008-02-15 | 2008-02-15 | TRANSVERSAL CUTTING DEVICE OF TAPE MATERIALS |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2090535A1 true EP2090535A1 (en) | 2009-08-19 |
EP2090535B1 EP2090535B1 (en) | 2011-06-01 |
Family
ID=40291654
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09152874A Active EP2090535B1 (en) | 2008-02-15 | 2009-02-13 | Device for cross-cutting web materials |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2090535B1 (en) |
AT (1) | ATE511491T1 (en) |
IT (1) | ITMI20080245A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105690467A (en) * | 2014-11-28 | 2016-06-22 | 天津麦索节能科技有限公司 | Traction transverse cutting machine for producing XPS profile bars |
CN106006144A (en) * | 2016-07-13 | 2016-10-12 | 上海烟草机械有限责任公司 | Paper tape cutting device and operating method thereof |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3275820B1 (en) * | 2016-07-28 | 2020-07-01 | Harro Höfliger Verpackungsmaschinen GmbH | Device for cutting a web of material into sections |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0622320A1 (en) * | 1993-04-24 | 1994-11-02 | bielomatik Leuze GmbH + Co | Method and device for cutting a material in sheets |
EP0827483A1 (en) * | 1996-03-05 | 1998-03-11 | FABIO PERINI S.p.A. | Rewinder incorporating a tail sealer |
EP1052209A1 (en) * | 1999-05-06 | 2000-11-15 | CASMATIC S.p.A. | Foil cutting assembly, in particular for a wrapping machine |
-
2008
- 2008-02-15 IT IT000245A patent/ITMI20080245A1/en unknown
-
2009
- 2009-02-13 EP EP09152874A patent/EP2090535B1/en active Active
- 2009-02-13 AT AT09152874T patent/ATE511491T1/en active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0622320A1 (en) * | 1993-04-24 | 1994-11-02 | bielomatik Leuze GmbH + Co | Method and device for cutting a material in sheets |
EP0827483A1 (en) * | 1996-03-05 | 1998-03-11 | FABIO PERINI S.p.A. | Rewinder incorporating a tail sealer |
EP1052209A1 (en) * | 1999-05-06 | 2000-11-15 | CASMATIC S.p.A. | Foil cutting assembly, in particular for a wrapping machine |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105690467A (en) * | 2014-11-28 | 2016-06-22 | 天津麦索节能科技有限公司 | Traction transverse cutting machine for producing XPS profile bars |
CN106006144A (en) * | 2016-07-13 | 2016-10-12 | 上海烟草机械有限责任公司 | Paper tape cutting device and operating method thereof |
Also Published As
Publication number | Publication date |
---|---|
ITMI20080245A1 (en) | 2009-08-16 |
ATE511491T1 (en) | 2011-06-15 |
EP2090535B1 (en) | 2011-06-01 |
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