EP0884143A2 - Dispositif de coupe longitudinale d'une nappe - Google Patents

Dispositif de coupe longitudinale d'une nappe Download PDF

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Publication number
EP0884143A2
EP0884143A2 EP98109225A EP98109225A EP0884143A2 EP 0884143 A2 EP0884143 A2 EP 0884143A2 EP 98109225 A EP98109225 A EP 98109225A EP 98109225 A EP98109225 A EP 98109225A EP 0884143 A2 EP0884143 A2 EP 0884143A2
Authority
EP
European Patent Office
Prior art keywords
knife
cutting
web
disks
cutting table
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Withdrawn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
EP98109225A
Other languages
German (de)
English (en)
Other versions
EP0884143A3 (fr
Inventor
Reinhold Siebert
Maurice Fehr
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.)
BHS Corrugated Maschinen und Anlagenbau GmbH
Original Assignee
BHS Corrugated Maschinen und Anlagenbau 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 BHS Corrugated Maschinen und Anlagenbau GmbH filed Critical BHS Corrugated Maschinen und Anlagenbau GmbH
Publication of EP0884143A2 publication Critical patent/EP0884143A2/fr
Publication of EP0884143A3 publication Critical patent/EP0884143A3/fr
Withdrawn legal-status Critical Current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
    • 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
    • B26D1/14—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 circular cutting member, e.g. disc cutter
    • B26D1/20—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 circular cutting member, e.g. disc cutter coacting with a fixed member
    • B26D1/205—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 circular cutting member, e.g. disc cutter coacting with a fixed member 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
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/20—Cutting beds

Definitions

  • the invention relates to a longitudinal cutting device for a Goods web, especially corrugated board web, with the characteristics of Preamble of claim 1.
  • Such slitting devices are found, for example, in of corrugated cardboard use to order after manufacture the corrugated cardboard web according to the desired format to cut in their longitudinal direction. Together with a cross cutter this creates corrugated cardboard sheets of predetermined Latitude and longitude.
  • a slitting machine in which on the one side of the corrugated cardboard web a rotatingly drivable circular cutting knife is provided which is transverse from a is carried to the web movable carrier and that with one on the other side of the web across the web slidable counter surface interacts.
  • the rotating The cutting knife engages in a slot-shaped recess a cutting table forming the counter surface.
  • the slot-shaped recess also extends over a large area in front of the knife, i.e. the recess settles on the inlet side in front of the knife with a width that at least corresponds to the maximum thickness of the knife.
  • the cutting knife rotates in the transport direction of the Weilpappenbahn to be cut, in other words, in a direction such that at the intersection of the circumference of the cutting knife the web is a component of the speed vector of the Circular movement in the direction of transport of the corrugated cardboard web results.
  • the amount of the peripheral speed is larger as the amount of transport speed of the corrugated cardboard web, to ensure a clean cut.
  • the present invention is therefore based on the object a slitter for a web, in particular Corrugated cardboard web to create, even with thin webs and / or light quality ensures a clean cut is.
  • the invention is based on the knowledge that a disturbance the cross section through a ridge on the underside of the cutting material web arises from the fact that the cutting edge of the knife tapered in the radial direction and thus the Cutting edges in the area of the intersection of the outer circumference of the knife with the cutting table in the area of the slit-shaped Of the cutting table.
  • the minimum distance (in the plane of the surface of the Cutting table) of the means delimiting the gap the cutting edge must be less than 5 mm in order to achieve sufficient Achieve effect and is preferably less than 3 mm.
  • the agents also at least in the plane of the surface of the cutting table rest on the outside of the cutting edge of the knife or this existing in known cutting devices, at least the maximum thickness of the knife in the Reduce the area of the tapered edge so far that a clean cut at the bottom of the web is achieved.
  • Disks provided, the surface of which coincides with the surface of the Cutting tables are aligned, the disks with at least one Part of their peripheral surface on one side of the Edge of the knife or the gap in the surrounding area corresponding to the cutting edge in the manner explained above to reduce. Is a concern of the gap limiting Desired medium on the outside of the cutting edge results the benefit of using the washers Even with very thin cutting edges, the circumferential surfaces fit securely of the washers on the knife edge and thus safe support of the underside of the web to be cut at the actual intersection.
  • the Circumferential surfaces of the washers towards the bottom of the Cutting table tapered. This gives the advantage that the finite thickness of the disc in the plane of the surface of the cutting table or the disks no noticeable gap between the outside of the knife and the peripheral surface of the disks can arise.
  • the disks also rotate when these are not in direct contact with the outside of the knife, but only the gap in the area surrounding the cutting edge to reduce.
  • the cutting force is the one to be cut Path near the cutting point more strongly on the surface the discs pressed than in more distant areas.
  • Frictional force between the underside of the web and the surface the disk in question leads to a resultant Torque that causes the disks to rotate.
  • the slit in the plane of the surface of the Elements so tapered against the direction of travel of the web is formed that the inner walls of the slot at least with a partial area on the cutting edge of the knife apply or only a small allowable gap from the Release the outside of the cutting edge.
  • the Cutting table designed so that the two sides of the knife also in at least one sub-area outside of tapered cutting edge to be applied in this too Areas to prevent in particular the lower part web a corrugated cardboard web in a space between the knife and Cutting table is pulled.
  • the cutting table is preferably designed such that this or related elements spring loaded to the Sides of the knife.
  • FIG. 1 shows a longitudinal cutting device 1 according to the invention for a web 3, for example a corrugated cardboard web can represent, with side stands are provided in which a guide bracket 5 is pivotally mounted as usual.
  • the guide beam 5 is formed by two parallel bars 7, the rigid at their ends in a manner not shown Side signs are connected.
  • the side signs are over pivot pin, not shown, pivotally mounted.
  • a Swivel device also not shown, can guide the guide 5 in working position or from working position bring.
  • the bars 7 are provided with slide rods 9. At these are slidably mounted support bracket 11 by means of plain bearings 9 '. In the transverse direction to the corrugated cardboard web 3 are several support beams 11 is provided, which has only schematically indicated setting spindles adjustable in predetermined positions and in these Positions can be determined.
  • Each support bracket 11 is traversed by a drive shaft 13. Sits on it, slidably and with the support bracket 11 connected, a translation gear 15.
  • a substantially circular knife 17 is rotatable stored on the support bracket 11 is offset parallel to the translation gear 15 .
  • the knife 17 carries a translation gear 19, which forms a transmission gear with the transmission wheel 15.
  • the two transmission wheels 15, 19 are preferably by means of a belt 21, e.g. a toothed belt, connected to each other.
  • the knife 17 is opposite with this gear the drive shaft 13 driven higher speed. To this A speed for the knife 17 can be reached, which is about the critical speed of the drive shaft 13 is.
  • the knife 17, which is preferably very thin and slim interacts with a surface 23a of a cutting table 23, which as a support surface for the underside of the corrugated cardboard web 3 serves.
  • the cutting table 23 has a slot-shaped recess 25 in which the outer Edge area of the knife 17 engages.
  • the slit-shaped recess 25 is essentially formed by the two Boundary elements 27, preferably with their inner sides 27a rest on the side walls of the knife 17.
  • the underside of the corrugated cardboard web 3 is prevented by the rotation of the knife 17th the underside of the corrugated cardboard web 3 in a gap between the inner sides 27a and the outer sides of the knife 17 becomes.
  • the limiting elements 27 can of course do this be designed so that this by means of a not shown Mechanics resiliently pressed against the outside of the knife 17 will.
  • the disks 29 are arranged so that their outer surfaces at least in the plane of the surface 23a of the cutting table 23 on the cutting edge 17a tapering in the radial direction Knife 17 abut.
  • the disks 29 are preferably designed so that their Circumferential surfaces towards the underside of the cutting table taper. This ensures that the Disks 29 or their peripheral surfaces with their upper edge region, i.e. on the upper edge of the panes and thus also in the plane of the surface 23a of the cutting table 23, in the area the cutting edge 17a bear against the outer sides of the knife 17.
  • the disks 29 can be rotated in an upper part 31 of the cutting table 23.
  • the top 31 also includes the limiting elements 27 shown in FIG Embodiment integrally connected to the upper part 31 are. As mentioned above, the limiting elements 27, however, can also be designed as separate elements and resiliently act on the outer sides of the knife 17.
  • the discs 29 are held in the upper part 31 by means of a roller bearing 33.
  • the upper part 31 of the cutting table 23 is by means of screw connections 35 connected to a lower part 37 of the cutting table 23.
  • FIGS. 2 and 3 Upper part 31 of the cutting table 23 is also formed in two parts be.
  • the division preferably takes place in the Middle plane of the knife 17. This ensures that each Half be positioned exactly in the conveying direction I exactly can that the relevant peripheral surface of the disc 29 on abuts the respective outside of the cutting edge 17a.
  • the rotatability of the disks 29 results in 2 apparent direction of rotation II of the knife 17 as a result the friction of the knife on the peripheral surfaces of the disks 29 a rotation of the disks 29 in the one shown in FIG. 3 Direction of rotation III.
  • the rotary motion ensures even wear the peripheral surfaces of the disks 29 takes place.
  • the peripheral surfaces to the Cutting edge can be made of a very hard, wear-resistant Be made of material.
  • the rotational movement that first residues of glue or dirt adhering to the knife due to the frictional engagement on the surface 23a of the disks 29 deposit, transported away from the cutting edge and through the Underside of the corrugated cardboard web to be cut will. It is therefore a self-cleaning of the cutting area, i.e. the contact area of the cutting edge 17a with the disks 29, reached.
  • Fig. 4 shows a further embodiment of a cutting table 23 for a longitudinal cutting device according to the invention.
  • element 40 used which one against the Conveying direction I of the corrugated cardboard web 3 tapering slot 42 has, the inner walls at least in the region of the surface 23a of the cutting table 23 on the outer sides of the cutting edge 17a of the knife 17.
  • the slot 42 can do this expand towards the bottom of the cutting table 23, to on the one hand the friction between the element 40 and to reduce the cutting edge 17a and on the other hand a safe one Bearing of the inner walls of the slot 42 in the area of Surface or the upper edge of the element 40 on the cutting edge to ensure.
  • the element 40 can, in a manner not shown, in the conveying direction I be slidable and lockable. Instead of being ascertainable, element 40 can, however, also with a spring force in the direction of the cutting edge 17a be in order to optimally fit the inner walls to ensure the cutting edge.
  • the slot 42 can also be designed so that it is tapered to a certain point and from that point on with an extremely narrow width towards the end of the Elements 40 to run. This ensures that at wear of the tapering areas of the inner surfaces outermost, thinnest end of the cutting edge 17a is not damaged. If necessary, this measure can even re-sharpen the cutting edge can be reached.
  • both the discs 29 and that Element 40 can be designed to be exchangeable in a simple manner.
  • the washers 29 or the element 40 on the outer sides the cutting edge 17a can also be so be formed or positioned that a small gap between the cutting edge and the relevant sides of the discs 29 or the element 40 remains free.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Making Paper Articles (AREA)
  • Nonmetal Cutting Devices (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
EP98109225A 1997-06-12 1998-05-20 Dispositif de coupe longitudinale d'une nappe Withdrawn EP0884143A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1997124917 DE19724917A1 (de) 1997-06-12 1997-06-12 Längsschneidevorrichtung für eine Warenbahn
DE19724917 1997-06-12

Publications (2)

Publication Number Publication Date
EP0884143A2 true EP0884143A2 (fr) 1998-12-16
EP0884143A3 EP0884143A3 (fr) 1999-12-01

Family

ID=7832312

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98109225A Withdrawn EP0884143A3 (fr) 1997-06-12 1998-05-20 Dispositif de coupe longitudinale d'une nappe

Country Status (3)

Country Link
EP (1) EP0884143A3 (fr)
JP (1) JPH1110582A (fr)
DE (1) DE19724917A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8342068B2 (en) * 2004-10-12 2013-01-01 Foser S.p.A. Device for longitudinal cutting of a continuous web material, such as corrugated cardboard

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE89973C (fr) *
US1642081A (en) * 1925-09-04 1927-09-13 Dahlberg & Company Inc Apparatus for slitting continuously-moving material
DE1216327B (de) * 1961-05-25 1966-05-12 Maschf Augsburg Nuernberg Ag Vorrichtung zum Laengsschneiden von Bogen im Ausleger von Druckmaschinen
US5090281A (en) * 1990-03-08 1992-02-25 Marquip, Inc. Slitting apparatus for corrugated paperboard and the like
US5197366A (en) * 1992-07-29 1993-03-30 Marquip, Inc. Roller assembly for paperboard slitting apparatus
US5406869A (en) * 1993-09-16 1995-04-18 Marquip, Inc. Air bearing support assembly for paper slitting apparatus
WO1995024298A1 (fr) * 1994-03-10 1995-09-14 Marquip, Inc. Dispositif et procede de fente de bandes de papier et de carton

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8342068B2 (en) * 2004-10-12 2013-01-01 Foser S.p.A. Device for longitudinal cutting of a continuous web material, such as corrugated cardboard

Also Published As

Publication number Publication date
EP0884143A3 (fr) 1999-12-01
JPH1110582A (ja) 1999-01-19
DE19724917A1 (de) 1998-12-24

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