EP0654329B1 - Method and device for scissor cutting strip material - Google Patents
Method and device for scissor cutting strip material Download PDFInfo
- Publication number
- EP0654329B1 EP0654329B1 EP94118063A EP94118063A EP0654329B1 EP 0654329 B1 EP0654329 B1 EP 0654329B1 EP 94118063 A EP94118063 A EP 94118063A EP 94118063 A EP94118063 A EP 94118063A EP 0654329 B1 EP0654329 B1 EP 0654329B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cutting
- axis
- peripheral surface
- strip
- cylinder
- 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.)
- Expired - Lifetime
Links
- 238000005520 cutting process Methods 0.000 title claims description 157
- 238000000034 method Methods 0.000 title claims description 8
- 230000002093 peripheral effect Effects 0.000 claims description 26
- 230000003213 activating effect Effects 0.000 claims description 4
- 230000035515 penetration Effects 0.000 description 4
- 235000019504 cigarettes Nutrition 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 241000208125 Nicotiana Species 0.000 description 1
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000009304 pastoral farming Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
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
- 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
- B26D1/56—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 travels with the work otherwise than in the direction of the cut, i.e. flying cutter
- B26D1/62—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 travels with the work otherwise than in the direction of the cut, i.e. flying cutter and is rotating about an axis parallel to the line of cut, e.g. mounted on a rotary cylinder
- B26D1/626—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 travels with the work otherwise than in the direction of the cut, i.e. flying cutter and is rotating about an axis parallel to the line of cut, e.g. mounted on a rotary cylinder for thin material, e.g. for sheets, strips or the like
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24C—MACHINES FOR MAKING CIGARS OR CIGARETTES
- A24C5/00—Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
- A24C5/47—Attaching filters or mouthpieces to cigars or cigarettes, e.g. inserting filters into cigarettes or their mouthpieces
- A24C5/471—Attaching filters or mouthpieces to cigars or cigarettes, e.g. inserting filters into cigarettes or their mouthpieces by means of a connecting band
- A24C5/473—Cutting the connecting band
-
- 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
- B26D1/12—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 cutting member moving about an axis
- B26D1/25—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 cutting member moving about an axis with a non-circular cutting member
- B26D1/34—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 cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut
- B26D1/42—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 cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut and slidably mounted in a rotary member
- B26D1/425—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 cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut and slidably mounted in a rotary member for thin material, e.g. for sheets, strips or the like
Definitions
- the present invention relates to a method and device for scissor cutting strip material.
- sinor cutting is intended to mean a cut made by two blades contacting each other at successive points, which contact may be made in two distinct ways depending on whether the planes of the two blades are inclined or parallel to each other.
- scissor cutting is normally effected by "grazing” of the substantially coplanar cutting edges of the blades which are moved substantially crosswise to their planes.
- scissor cutting is normally effected by "penetration", the cutting edge of one blade being positioned obliquely in relation to that of the other, and the two blades being moved in relation to each other within the plane.
- Connecting bands are known to be graze scissor cut from a continuous strip using the device described in US Patent n. 4,943,341 granted to the present Applicant, wherein a strip feed roller presents a number of inclined blades, the cutting edge of each of which is grazed at successive points by the cutting edge of a respective blade on another roller to cut the strip into segments.
- British Patent Application n. 2,220,878 relates to a penetration scissor cutting device comprising a conveyor roller for feeding a continuous strip to a cutting station and in turn comprising a succession of peripheral suction sectors separated by grooves extending along respective generating lines of the roller.
- Each of the grooves presents a cutting edge and is gradually engaged, in the region of the cutting station, by the oblique cutting end of an outer blade positioned substantially radially on a cutting roller parallel to and rotating in the opposite direction and in time with the conveyor roller.
- each outer blade as it penetrates inside the respective groove, draws part of the strip with it inside the groove and is inevitably soiled with gum which, despite the provision of cleaning assemblies contacting the outer blades clear of the cutting station, may result in frequent stoppage of the filter assembly machine for cleaning purposes.
- deformation of the strip by the outer blade, so that part of the strip penetrates inside the groove may result in inaccurate cutting of the strip.
- a device for scissor cutting strip material comprising:
- Numeral 1 in Figure 1 indicates a filter assembly machine comprising a device 2 for cutting and feeding a succession of bands 3 to a known conveyor roller 4 on which groups 5, comprising two cigarette portions separated by a double filter, are retained pneumatically in known manner inside respective seats 6 parallel to the generating lines of roller 4. Roller 4 feeds groups 5 transversely through a transfer station 7 where bands 3 are applied by device 2 to the outer periphery of respective groups 5.
- Device 2 comprises a feed unit 8 in turn comprising a conveyor roller 9 for receiving a strip 10 of sheet material with a gummed surface 10a opposite the surface contacting roller 9, and for feeding strip 10 through a cutting station 11 where it is cut into bands 3 by a cutting unit 12 forming part of device 2.
- Roller 9 is rotated clockwise (in Figure 1) by known drive means (not shown) about a substantially horizontal axis 13 perpendicular to the Figure 1 plane, and presents a cylindrical outer surface 14 tangent to conveyor roller 4 at transfer station 7.
- Roller 9 is a tubular roller defined by a succession of suction segments or sectors 15 equally spaced about axis 13 and each separated from the adjacent sector 15 by a radial axial slit 16.
- Sectors 15 are connected to one another by end plates 15a ( Figure 3), and each presents a number of through axial suction channels 17, each of which communicates on one side with a known suction device (not shown) and on the other with a number of holes 18 extending radially through sector 15 and communicating externally through surface 14.
- Cutting unit 12 comprises two rollers 19 and 20 fitted to respective drive shafts 21 and 22 rotating, the first in the opposite direction and the second in the same direction as roller 9, about respective axes 23 and 24 parallel to axis 13.
- Roller 19 presents a number of substantially radial appendixes 25 equal in number to slits 16, equally spaced about axis 23, and each fitted by means of a respective screw 26 with a respective blade 27 (hereinafter referred to as the "outer blade") lying in a plane parallel to axis 23 and presenting a cutting edge 28 on its free end.
- Each edge 28 is oblique in relation to axis 23, and presents a tip 29 facing surface 14 of roller 9 and traveling along a circular path interfering with surface 14 at cutting station 11.
- Roller 20 is a cylindrical roller housed inside roller 9 and which presents a number of substantially radial blades 30 (hereinafter referred to as "inner blades”) equally spaced about axis 24 and fitted to the periphery of roller 20 by means of respective fastening devices 31.
- Inner blades 30 are equal in number to slits 16, and each engages a respective slit 16 in radially-sliding transversely-slack manner.
- each inner blade 30 presents a free end portion 32 in turn presenting an axial groove 33 on the side facing upstream in the rotation direction of roller 20.
- portion 32 is also defined by a surface 34 sloping inwards and downstream in relation to a plane tangent to surface 14 and moving with inner blade 30.
- Groove 33 is defined by a first surface 35 crosswise to respective inner blade 30, and by a second surface 36 extending outwards from surface 35 and obliquely in relation to the mid radial plane of respective inner blade 30, and which intersects surface 34 along an edge parallel to axis 13 and constituting the cutting edge 37 of inner blade 30.
- Axis 24 of roller 20 is eccentric in relation to axis 13, and lies within a sector having its apex at axis 13 and subtended by an arc extending between stations 11 and 7; and the diameter of roller 20 is such that the outer surface 38 of roller 20 is substantially tangent to the cylindrical inner surface 39 of roller 9 inside said sector.
- inner blades 30 project outwards of surface 38 by a length greater than the distance between surfaces 38 and 14, and at most equal to the sum of this distance and the difference between the diameters of surfaces 38 and 39, so that, when rollers 9 and 20 are rotated at the same speed about respective axes 13 and 24, inner blades 30 move through roller 9 and to and from an extracted position which is assumed at least at said sector and wherein edge 37 of each inner blade 30 projects outwards of surface 14.
- rollers 9 and 20 on one side and roller 19 on the other are rotated in opposite directions, at the same speed, and in time with one another about respective axes 13, 24 and 23, so that each outer blade 27 laterally contacts a respective inner blade 30 at cutting station 11.
- Strip 10 is fed in known manner on to surface 14 and, due to the eccentricity of axis 24 in relation to axis 13, the inner blade 30 approaching station 11 begins to project outwards of surface 14 before reaching station 11, thus detaching strip 10 from surface 14.
- the oblique cutting edge 28 of the corresponding outer blade 27 contacts successive points of the cutting edge 37 of inner blade 30 and penetrates gradually inside groove 33 to scissor cut strip 10 transversely.
- the connecting bands 3 so formed are fed successively to station 7 where they are applied by their gummed surfaces 10a to the periphery of respective groups 5.
- each inner blade 30 constitutes an inner support for strip 10, for preventing strip 10 from folding inwards of slit 16 during the cutting operation, and so ensuring a precise cut, while at the same time preventing outer blade 27, with the exception of cutting edge 28, from contacting gummed surface 10a, thus substantially eliminating fouling of blade 27 by the gum during the cutting operation.
Description
The present invention relates to a method and
device for scissor cutting strip material.
Here and hereinafter, the term "scissor cutting"
is intended to mean a cut made by two blades contacting
each other at successive points, which contact may be
made in two distinct ways depending on whether the
planes of the two blades are inclined or parallel to
each other.
With blades in inclined planes, scissor cutting is
normally effected by "grazing" of the substantially
coplanar cutting edges of the blades which are moved
substantially crosswise to their planes. With blades in
parallel planes, on the other hand, scissor cutting is
normally effected by "penetration", the cutting edge of
one blade being positioned obliquely in relation to that
of the other, and the two blades being moved in relation
to each other within the plane.
Both the above scissor cutting methods are used to
advantage in the tobacco industry in general, and in the
manufacture of cigarettes in particular to which
specific reference is made in the following description
purely by way of example, and wherein scissor cutting is
employed, among other things, on filter assembly
machines, for cutting filter-cigarette connecting bands
from a continuous strip.
Connecting bands are known to be graze scissor cut
from a continuous strip using the device described in
US Patent n. 4,943,341 granted to the present Applicant,
wherein a strip feed roller presents a number of
inclined blades, the cutting edge of each of which is
grazed at successive points by the cutting edge of a
respective blade on another roller to cut the strip into
segments.
Though highly accurate, in general, graze scissor
cutting as described in the above patent requires
relatively accurate assembly of the blades, adapts
poorly to variations in temperature, and is subject to
relatively severe wear of the cutting edges of the
blades.
In an attempt to overcome the above drawbacks,
British Patent Application n. 2,220,878 relates to a
penetration scissor cutting device comprising a conveyor
roller for feeding a continuous strip to a cutting
station and in turn comprising a succession of
peripheral suction sectors separated by grooves
extending along respective generating lines of the
roller. Each of the grooves presents a cutting edge and
is gradually engaged, in the region of the cutting
station, by the oblique cutting end of an outer blade
positioned substantially radially on a cutting roller
parallel to and rotating in the opposite direction and
in time with the conveyor roller.
The above penetration scissor cutting device
presents several drawbacks which are especially
troublesome in the event the strip, as in the specific
application referred to herein, presents an outward
gummed surface facing the outer blades. In which case,
each outer blade, as it penetrates inside the respective
groove, draws part of the strip with it inside the
groove and is inevitably soiled with gum which, despite
the provision of cleaning assemblies contacting the
outer blades clear of the cutting station, may result in
frequent stoppage of the filter assembly machine for
cleaning purposes. Moreover, deformation of the strip by
the outer blade, so that part of the strip penetrates
inside the groove, may result in inaccurate cutting of
the strip.
It is an object of the present invention to
provide a method of penetration scissor cutting a
continuous strip, designed to overcome the
aforementioned drawbacks.
According to the present invention, there is
provided a method of scissor cutting strip material, the
method comprising the steps of:
- feeding a continuous strip onto a first rotating cutting cylinder and into a cutting region in between of the first cutting cylinder and a second cutting cylinder parallel to the first cutting cylinder and rotated in synchronisation therewith, the first cutting cylinder comprising a plurality of circumferentially spaced first cutting means and transport segments therebetween for holding the strip at a peripheral surface of the first cutting cylinder; the second cutting cylinder comprising a plurality of second cutting means having second cutting edges, which are inclined in relation to an axis of rotation of the second cutting cylinder so that, in the cutting region, the successive second cutting means engage with the first cutting means, progressively and in a longitudinal direction of the first cutting means, to cut the strip into strip segments; and
- successively transporting the strip segments held by
the transport segments to a conveyor;
characterised in that each first cutting means comprises a cutting blade arranged in a radially and longitudinally extending slit provided through said peripheral surface; each cutting blade having a first cutting edge and being radially movable in the relevant slit between a first position, in which said first cutting edge is inside said peripheral surface, and a second position in which said first cutting edge protrudes out of the slit and outside said peripheral surface; each cutting blade being moved so that the relevant first cutting edge protrudes outside said peripheral surface at least when the cutting blade travels through the cutting region, and is arranged inside said peripheral surface when the cutting blade travels through another region.
According to the present invention, there is also
provided a device for scissor cutting strip material,
the device comprising:
- a first cutting cylinder mounted for rotation about a first axis, and by which a continuous strip can be fed into a cutting region; the first cutting cylinder comprising a plurality of circumferentially spaced first cutting means and transport segments therebetween for holding the strip at a peripheral surface of the first cutting cylinder, said first cutting means being provided with relevant first cutting edges;
- a second cutting cylinder mounted for rotation in synchronisation with the first cutting cylinder about a second axis parallel to the first axis; the second cutting cylinder comprising a plurality of second cutting means having relevant second cutting edges which are inclined in relation to the second axis so that, in the cutting region, the successive second cutting means engage with the first cutting means, progressively and in a longitudinal direction of the first cutting means, to cut the strip into strip segments; and
- a conveyor for successively receiving the strip
segments at a transfer region;
characterised in that each first cutting means comprises a cutting blade disposed in a radially and longitudinally extending slit provided through said peripheral surface; each cutting blade being radially movable in the relevant slit between a first position, in which the relevant said first cutting edge is inside said peripheral surface, and a second position in which said first cutting edge protrudes out of the slit and outside said peripheral surface; activating means being provided for moving each cutting blade so that the relevant first cutting edge protrudes outside said peripheral surface at least when the cutting blade travels through the cutting region, and is arranged inside said peripheral surface when the cutting blade travels through another region.
The invention will now be described by way of
example with reference to the accompanying drawings, in
which:
Numeral 1 in Figure 1 indicates a filter assembly
machine comprising a device 2 for cutting and feeding a
succession of bands 3 to a known conveyor roller 4 on
which groups 5, comprising two cigarette portions
separated by a double filter, are retained pneumatically
in known manner inside respective seats 6 parallel to
the generating lines of roller 4. Roller 4 feeds groups
5 transversely through a transfer station 7 where bands
3 are applied by device 2 to the outer periphery of
respective groups 5.
As shown particularly in Figure 2, each inner
blade 30 presents a free end portion 32 in turn
presenting an axial groove 33 on the side facing
upstream in the rotation direction of roller 20. On the
side facing roller 19, portion 32 is also defined by a
surface 34 sloping inwards and downstream in relation to
a plane tangent to surface 14 and moving with inner
blade 30. Groove 33 is defined by a first surface 35
crosswise to respective inner blade 30, and by a second
surface 36 extending outwards from surface 35 and
obliquely in relation to the mid radial plane of
respective inner blade 30, and which intersects surface
34 along an edge parallel to axis 13 and constituting
the cutting edge 37 of inner blade 30.
Axis 24 of roller 20 is eccentric in relation to
axis 13, and lies within a sector having its apex at
axis 13 and subtended by an arc extending between
stations 11 and 7; and the diameter of roller 20 is such
that the outer surface 38 of roller 20 is substantially
tangent to the cylindrical inner surface 39 of roller 9
inside said sector. Moreover, inner blades 30 project
outwards of surface 38 by a length greater than the
distance between surfaces 38 and 14, and at most equal
to the sum of this distance and the difference between
the diameters of surfaces 38 and 39, so that, when
rollers 9 and 20 are rotated at the same speed about
respective axes 13 and 24, inner blades 30 move through
roller 9 and to and from an extracted position which is
assumed at least at said sector and wherein edge 37 of
each inner blade 30 projects outwards of surface 14.
In actual use, rollers 9 and 20 on one side and
roller 19 on the other are rotated in opposite
directions, at the same speed, and in time with one
another about respective axes 13, 24 and 23, so that
each outer blade 27 laterally contacts a respective
inner blade 30 at cutting station 11. Strip 10 is fed in
known manner on to surface 14 and, due to the
eccentricity of axis 24 in relation to axis 13, the
inner blade 30 approaching station 11 begins to project
outwards of surface 14 before reaching station 11, thus
detaching strip 10 from surface 14. At the same time,
the oblique cutting edge 28 of the corresponding outer
blade 27 contacts successive points of the cutting edge
37 of inner blade 30 and penetrates gradually inside
groove 33 to scissor cut strip 10 transversely. The
connecting bands 3 so formed are fed successively to
station 7 where they are applied by their gummed
surfaces 10a to the periphery of respective groups 5.
In connection with the above, it should be pointed
out that, by gradually projecting outwards of surface
14, each inner blade 30 constitutes an inner support for
strip 10, for preventing strip 10 from folding inwards
of slit 16 during the cutting operation, and so ensuring
a precise cut, while at the same time preventing outer
blade 27, with the exception of cutting edge 28, from
contacting gummed surface 10a, thus substantially
eliminating fouling of blade 27 by the gum during the
cutting operation.
Claims (8)
- A method of scissor cutting strip material, the method comprising the steps of:feeding a continuous strip (10) onto a first rotating cutting cylinder (9) and into a cutting region (11) in between of the first cutting cylinder (9) and a second cutting cylinder (12) parallel to the first cutting cylinder (9) and rotated in synchronisation therewith, the first cutting cylinder (9) comprising a plurality of circumferentially spaced first cutting means (30) and transport segments (15) therebetween for holding the strip (10) at a peripheral surface (14) of the first cutting cylinder (9); the second cutting cylinder (12) comprising a plurality of second cutting means (27) having second cutting edges (28), which are inclined in relation to an axis (23) of rotation of the second cutting cylinder (12) so that, in the cutting region (11), the successive second cutting means (27) engage with the first cutting means (30), progressively and in a longitudinal direction of the first cutting means (30), to cut the strip (10) into strip segments (3); andsuccessively transporting the strip segments (3) held by the transport segments (15) to a conveyor (4);
characterised in that each first cutting means (30) comprises a cutting blade (30) arranged in a radially and longitudinally extending slit (16) provided through said peripheral surface (14); each cutting blade (30) having a first cutting edge (37) and being radially movable in the relevant slit (16) between a first position, in which said first cutting edge (37) is inside said peripheral surface (14), and a second position in which said first cutting edge (37) protrudes out of the slit (16) and outside said peripheral surface (14); each cutting blade (30) being moved so that the relevant first cutting edge (37) protrudes outside said peripheral surface (14) at least when the cutting blade (30) travels through the cutting region (11), and is arranged inside said peripheral surface (14) when the cutting blade (30) travels through another region. - A device for scissor cutting strip material, the device comprising:a first cutting cylinder (9) mounted for rotation about a first axis (13), and by which a continuous strip (10) can be fed into a cutting region (11); the first cutting cylinder (9) comprising a plurality of circumferentially spaced first cutting means (30) and transport segments (15) therebetween for holding the strip (10) at a peripheral surface (14) of the first cutting cylinder (9), said first cutting means (30) being provided with relevant first cutting edges (37);a second cutting cylinder (12) mounted for rotation in synchronisation with the first cutting cylinder (9) about a second axis (23) parallel to the first axis (13); the second cutting cylinder (12) comprising a plurality of second cutting means (27) having relevant second cutting edges (28) which are inclined in relation to the second axis (23) so that, in the cutting region (11), the successive second cutting means (27) engage with the first cutting means (30), progressively and in a longitudinal direction of the first cutting means (30), to cut the strip (10) into strip segments (3); anda conveyor (4) for successively receiving the strip segments (3) at a transfer region (7);
characterised in that each first cutting means (30) comprises a cutting blade (30) disposed in a radially and longitudinally extending slit (16) provided through said peripheral surface (14); each cutting blade (30) being radially movable in the relevant slit (16) between a first position, in which the relevant said first cutting edge (37) is inside said peripheral surface (14), and a second position in which said first cutting edge (37) protrudes out of the slit (16) and outside said peripheral surface (14); activating means (20) being provided for moving each cutting blade (30) so that the relevant first cutting edge (37) protrudes outside said peripheral surface (14) at least when the cutting blade (30) travels through the cutting region (11), and is arranged inside said peripheral surface (14) when the cutting blade (30) travels through another region. - A device as claimed in Claim 2, characterised in that said first cutting cylinder (9) comprises a tubular roller (9) having a cylindrical inner surface (39) and mounted for rotation at a given angular speed about said first axis (13); said peripheral surface (14) being a cylindrical outer surface (14) of said tubular roller (9) and being provided with said slits (16); said cutting blades (30) being mounted, together with said activating means (20), inside the tubular roller (9); and each cutting blade (30) engaging the respective said slit (16) in a radially sliding manner.
- A device as claimed in Claim 3, characterised in that said activating means (20) comprise an inner roller (20) having a cylindrical outer surface (38) and mounted eccentrically inside the tubular roller (9) so as to rotate at said angular speed about a third axis (24) parallel to the first axis (13); the inner roller (20) having a diameter smaller than a diameter of said cylindrical inner surface (39).
- A device as claimed in Claim 4, characterised in that the third axis (24) lies within a sector having its apex at the first axis (13) and subtended by an arc through said cutting and transfer regions (11, 7); the inner roller (20) having a diameter such that its cylindrical outer surface (38) is substantially tangent to the cylindrical inner surface (39) of the tubular roller (9) within said sector.
- A device as claimed in Claim 5, characterised in that each cutting blade (30) projects radially outwards from the inner roller (20); each cutting blade (30) projecting outwards of the cylindrical outer surface (38) of the inner roller (20) by a length greater than the distance between the cylindrical inner and outer surfaces (39, 14) of the tubular roller (9), and at most equal to the sum of this distance and the difference between the diameters of the inner surface (39) of the tubular roller (9) and the outer surface (38) of the inner roller (20).
- A device as claimed in Claim 6, characterised in that each said first cutting edge (37) is parallel to said third axis (24).
- A device as claimed in Claim 7, characterised in that each second cutting means (27) comprises an outer blade (27) moving about said second axis (23); said first and second axes (13, 23) being located on either side of the cutting region (11).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITBO930469 | 1993-11-24 | ||
| IT93BO000469A IT1264275B1 (en) | 1993-11-24 | 1993-11-24 | METHOD AND DEVICE FOR SCISSOR CUTTING OF TAPE MATERIAL. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0654329A1 EP0654329A1 (en) | 1995-05-24 |
| EP0654329B1 true EP0654329B1 (en) | 1998-07-08 |
Family
ID=11339325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP94118063A Expired - Lifetime EP0654329B1 (en) | 1993-11-24 | 1994-11-15 | Method and device for scissor cutting strip material |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0654329B1 (en) |
| JP (1) | JPH07186088A (en) |
| CN (1) | CN1042592C (en) |
| BR (1) | BR9404712A (en) |
| DE (1) | DE69411508T2 (en) |
| IT (1) | IT1264275B1 (en) |
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| ITBO20030708A1 (en) * | 2003-11-24 | 2005-05-25 | Gd Spa | METHOD FOR PREDICTIVE MAINTENANCE OF A UNIT OF |
| DE102010030349A1 (en) * | 2010-06-22 | 2011-12-22 | Hauni Maschinenbau Ag | Conveyor drum of the tobacco processing industry |
| BR112012029832A2 (en) * | 2011-04-28 | 2017-06-27 | Pasaban S A | cellulose pulp band cross cutting device |
| CN102247002A (en) * | 2011-06-02 | 2011-11-23 | 云南同云科贸有限公司 | Online cigarette winder cutting device |
| GB2526589A (en) * | 2014-05-29 | 2015-12-02 | British American Tobacco Co | Smoking article assembly apparatus |
| CN104842390A (en) * | 2014-12-24 | 2015-08-19 | 王鑫 | Novel paper cutting device |
| DE102015200711B4 (en) * | 2015-01-19 | 2016-09-01 | Hauni Maschinenbau Gmbh | Cutting a tipping paper strip |
| DE102016112724B4 (en) * | 2016-07-12 | 2018-02-08 | Hauni Maschinenbau Gmbh | Cutting a tipping paper strip of the tobacco processing industry |
| DE102017213389B4 (en) * | 2017-08-02 | 2022-07-28 | Heidelberger Druckmaschinen Ag | Rotary punch for punching out a piece of material from a substrate |
| CN109968428B (en) * | 2017-12-27 | 2020-12-11 | 中烟机械技术中心有限责任公司 | Belt-shaped paper material cutting device |
| CN116353012B (en) * | 2023-06-02 | 2023-08-11 | 石狮佳南热熔胶有限公司 | Hot melt adhesive film cutting and recycling system with neat trimming |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE502976C (en) * | 1928-12-13 | 1930-07-22 | Leopold Rado | Process for cutting sheets of a certain length from webs |
| BE655845A (en) * | 1963-12-02 | 1965-05-17 | ||
| GB1087118A (en) * | 1964-07-02 | 1967-10-11 | Paper Converting Machine Co | Improvements in or relating to cut off devices |
| FR1465464A (en) * | 1965-10-18 | 1967-01-13 | Windmoeller & Hoelscher | Cross cutting device for continuous plastic sheets |
| FR2414986A1 (en) * | 1978-01-23 | 1979-08-17 | Tech Bois Centre | PROCESS AND DEVICE FOR CUTTING, CONTINUOUSLY AND ROTATING, A SHEET TRANSVERSALLY IN ITS SCROLLING DIRECTION |
| IT1229428B (en) * | 1988-06-11 | 1991-08-08 | Hauni Werke Koerber & Co Kg | CUTTING DEVICE. |
| US5222422A (en) * | 1991-12-23 | 1993-06-29 | R.A. Jones & Co. Inc. | Wide range pouch form, fill, seal apparatus |
-
1993
- 1993-11-24 IT IT93BO000469A patent/IT1264275B1/en active IP Right Grant
-
1994
- 1994-11-15 DE DE69411508T patent/DE69411508T2/en not_active Expired - Fee Related
- 1994-11-15 EP EP94118063A patent/EP0654329B1/en not_active Expired - Lifetime
- 1994-11-21 JP JP6286350A patent/JPH07186088A/en active Pending
- 1994-11-23 CN CN94118942.2A patent/CN1042592C/en not_active Expired - Fee Related
- 1994-11-23 BR BR9404712A patent/BR9404712A/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| CN1108512A (en) | 1995-09-20 |
| ITBO930469A1 (en) | 1995-05-24 |
| CN1042592C (en) | 1999-03-24 |
| IT1264275B1 (en) | 1996-09-23 |
| ITBO930469A0 (en) | 1993-11-24 |
| EP0654329A1 (en) | 1995-05-24 |
| DE69411508D1 (en) | 1998-08-13 |
| DE69411508T2 (en) | 1998-12-17 |
| BR9404712A (en) | 1995-07-18 |
| JPH07186088A (en) | 1995-07-25 |
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