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US3595117A - Perforation machines - Google Patents

Perforation machines Download PDF

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Publication number
US3595117A
US3595117A US774234A US3595117DA US3595117A US 3595117 A US3595117 A US 3595117A US 774234 A US774234 A US 774234A US 3595117D A US3595117D A US 3595117DA US 3595117 A US3595117 A US 3595117A
Authority
US
United States
Prior art keywords
roller
knife
pad
abutment
machine
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
Application number
US774234A
Other languages
English (en)
Inventor
Karl Einar Lage Grettve
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.)
Lilla Edets Pappersbruks AB
Original Assignee
Lilla Edets Pappersbruks AB
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 Lilla Edets Pappersbruks AB filed Critical Lilla Edets Pappersbruks AB
Application granted granted Critical
Publication of US3595117A publication Critical patent/US3595117A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • B26F1/18—Perforating by slitting, i.e. forming cuts closed at their ends without removal of material
    • B26F1/20—Perforating by slitting, i.e. forming cuts closed at their ends without removal of material with tools carried by a rotating drum or similar support
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/465—Cutting motion of tool has component in direction of moving work
    • Y10T83/4766—Orbital motion of cutting blade
    • Y10T83/4795—Rotary tool
    • Y10T83/4847—With cooperating stationary tool
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/869—Means to drive or to guide tool
    • Y10T83/8745—Tool and anvil relatively positionable
    • Y10T83/8746—Straight line
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/929—Tool or tool with support
    • Y10T83/9309—Anvil
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/929—Tool or tool with support
    • Y10T83/9372—Rotatable type
    • Y10T83/9408—Spaced cut forming tool

Definitions

  • the main object of the invention is to provide a machine which is simple and safe in its construction and which operates at a very high accuracy and further ensures a perforation without causing any noticeable wearing of the parts of the machine involved in the perforation.
  • the object aimed at has been achieved by shaping the abutment means of a longitudinal border reaching into the movement path of the knifes and outside the periphery of the roller, and an elongated pad extending parallel to the roller axis, said pad at the side turned towards the roller provided with abutment and sliding surfaces, for the knife which are extending in the transverse direction of the pad, said surface arranged with some distance from each other and adapted to rebound when being hit by the knife.
  • This perforation is performed commonly as a socalled knife perforation for the reason that this kind of perforation is more aesthetic.
  • This perforation is provided by means of a rotating pair of shears.
  • Such a device comprises a strong rotating roller having a number of projecting knifeblades which usually are somewhat helically arranged along the roller and a likewise strong but stationary upper bar having an adjustable knife comprising a number of sections in order to facilitate the adjustment.
  • This device gives a good perforation result if only it is carried out with sufficient stability and freedom of vibration and is extremely well adjusted. In comparison with the device for stitch perforation the machine costs will be very high due to the greater precision and the weight ofthe machine.
  • the knife perforation could also be performed by means of a perforation machine (cf. e.g. the Swedish Pat. No. 31 939) which comprises a rotated knife roller and a driven counter roller cooperating with the first roller and being rotated with the same speed, the counter roller being provided with peripheral grooves in the mantle surface.
  • the knife roller is displaced axially back and forth during the rotation. When the paper web passes between the two rollers, the knives make cuts in that parts of the web which are not situated in front of the grooves in the counter roller.
  • a drawback in this kind of a perforation machine is to be seen therein that it must work with a very high grade accuracy as otherwise the knives will cut into the counter roller and damage the same or there will not be obtained any perforation lines at all.
  • the invention relates not particularly to machines for transverse perforation of paper webs and similar material webs, these machines being of the kind having a rotation knife roller with one or several knives extending in the longitudinal direction of the roller, said knives cooperating with an abutment means.
  • the main object of the invention is to be seen therein that the abutment means comprises a longitudinal border extending into the path of the knives outside the periphery of the roller and an elongated pad situated parallel to the roller axis, this pad being on the side turned towards the roller provided with abutment and sliding surfaces for the knives said surfaces extending in the transverse direction of the pad the knives against their surfaces.
  • the abutment surfaces are glass which, against the action of a pneumatic hose, are individually rebounding when hit by the knife. in such a device there is not required any notable precision but the abutment of the knife will always be sufficient and effective also after a considerable wearing of the knife as well as of the glass.
  • FIG. 1 is an end elevation shown partly in cross section of a perforating machine provided with a perforation device according to the invention
  • F IG. 2 shows on an enlarged scale a cross section through the perforation device proper
  • F l0. 3 is a side elevation shown in a partial vertical longitudinal section of the right-hand part of the perforating machine
  • FIG. 43 is a plan view of a border vided with a transverse perforation.
  • a horizontal roller 2 having rather long knife blades 5 clamped by means of the clamping pieces 4 in longitudinal grooves 3 in the roller 2, said knife blades 5 extending over the whole length of the roller 2 and reaching with a border portion 6 outside the periphery of the roller.
  • two guide rollers 7 covered with soft felt and guiding a paper web 8 from a storage roller (not shown) over the knife roller 2.
  • Extending over the knife roller 2 are two arms 9 which with one end are journaled about a shaft 10 parallel to the knife roller 2.
  • a number of rectangular abutment-means 13 of glass are arranged in a downwards opening groove ll in a bar l2 carried in one of the arms 9, these abutment means in the lower position, the operation position, resting with their ends on supporting ribs 14 along the opening l5 of the groove against the knife roller 2.
  • a bladder or a hose 16 extending along the whole of the groove and comprising an elastic materiaLeg. rubber, said hose to adapted to be connected to a source of compressed air (not shown).
  • the air pressure in the hose 16 keeps all the abutment means 13 resiliently against the supporting ribs 14. Inserted between adjacent abutment means 13 is a distance piece 17.
  • An adjustment bolt 18 extends through the free end of the arm 9 in question and rests with the lower end on the stand gable l and this bolt can be used for adjusting the bar 12 in such a way that the lower border portions l9 of the abutment means will be situated in the path of the outer borders 6 of the knife blades 5 at the rotation of the knife roller 2.
  • a piston 21 which is vertically displaceable in a cylinder 20 can be used for swinging the arms 9 with the bar 12 in counter clockwise direction according to FIG. 1 such that the glass abutment means 13: are lifted out of contact with the knife blades 5 such that the insertion of the paper web 3 over the knife roller 1. is facilitated.
  • This web 8 is hereby provided with the perforation line shown in FIG 4 comprising slots 24 and therebetween unbroken parts 25 of the paper web 8.
  • the lengths of the slots 24 correspond. to the thickness of the glass abutment means l3 and the: distance between neighboring slots 24 corresponds to the thickness of the distance pieces 17.
  • the slots 2 5 in the paper web 8 thus are formed on the one hand by the pressure of the knife blade borders 6 against the glass abutment means 113 and on the other hand by means of a tearing due to the sliding of the blade border 6 along the abutment surfaces 23.
  • the bar 112 is arranged to slide axially in relation to the knife roller 2.
  • the bar U (or the arms 9) is provided with an elongation arm 27 having a transversely (perpendicularly to the piece ofa paper web prodrawing plane according to FIG. 3) extending and somewhat oblong opening 28, an eccenter tap 29 engaging this opening 28 from below, said tap 2? being driven for rotation.
  • the value of the eccentricity has been denoted by reference letter 30.
  • the eccenter tap 29 is driven via a worm gear 31 from the driving device of the machine (not shown).
  • the bar 12 is, due to the rotating eccenter tap 29, displaced together with the pad of glass abutment means 13 axially in relation to the knife roller 2 at least a distance which equal to the width of the interspaces 26.
  • the latter may be arranged to be displaced in relation to the bar 12.
  • the perforation device Due to the glass abutment means pad which is under pressure from the pneumatic hose 16 and the different glass abutment means 13 in said pad being individually loaded, the perforation device is practically insensible for deflections and vibrations such that the machine may be constructed rather light.
  • the fine adjustment is restricted essentially to the adjustment of the pressure in the hose 16.
  • the invention also embraces a pad serving as a grate for the knife blades 5,
  • the invention also embraces a grate pad in which the interspaces 26 between the abutment surfaces 19 have been obtained e.g. by means of milling in a stationary beam or bar of steel or another hard and wear resistant material.
  • a machine for transversal perforation of webs of paper or similar material comprising a rotating knife roller which is provided with at least one knife extending in the longitudinal direction of the roller, said knife adapted for cooperation with an abutment means, wherein the improvement means ofa longitudinal border adapted to reach into the movement path of said knife and outside the periphery of the roller, and an elongated pad extending parallel to the roller axis, said pad at the side turned towards the roller provided with a plurality of abutment and sliding surfaces for the knife which are extending in the transverse direction ofthe pad, said surfaces being separated from one another by separating pieces.
  • a machine for transversal perforation of webs ofpaper or similar material comprising a rotating knife roller which is provided with at least one knife extending in the longitudinal direction of the roller, said knife adapted for cooperation with an abutment means, wherein the improvement comprises abutment means of a longitudinal border adapted to reach into the movement path of said knife and outside the periphery of the roller, and an elongated pad extending parallel to the roller axis, said pad at the side turned towards the roller provided with a plurality of abutment and sliding surfaces for the knife which are extending in the transverse direction of the pad, said surfaces being separately bevelled so that they taper towards their abutment border and said surfaces being separated from one another by separation pieces.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
US774234A 1967-11-09 1968-11-08 Perforation machines Expired - Lifetime US3595117A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE15358/67A SE312268B (de) 1967-11-09 1967-11-09

Publications (1)

Publication Number Publication Date
US3595117A true US3595117A (en) 1971-07-27

Family

ID=20300529

Family Applications (1)

Application Number Title Priority Date Filing Date
US774234A Expired - Lifetime US3595117A (en) 1967-11-09 1968-11-08 Perforation machines

Country Status (9)

Country Link
US (1) US3595117A (de)
AT (1) AT288845B (de)
CH (1) CH500820A (de)
DE (1) DE1806015A1 (de)
DK (1) DK118273B (de)
FR (1) FR1590848A (de)
GB (1) GB1198576A (de)
NL (1) NL6815954A (de)
SE (1) SE312268B (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4301701A (en) * 1979-02-08 1981-11-24 Winkler & Dunnebier Maschinenfabrik Und Eisengiesserei Gmbh & Co. Kg Rotary punch having a helically clamped abutment
US4318433A (en) * 1980-05-27 1982-03-09 Webster Wood Preserving Company Incisor roll
US5284304A (en) * 1991-04-03 1994-02-08 Fabio Perini S.P.A. Perforating apparatus for paper webs and the like, with reciprocating motion of translation of the counter-blade

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH655903A5 (de) * 1982-05-17 1986-05-30 Rolf Schellenberg Verfahren und vorrichtung zum perforieren, stanzen oder rillen von papier und karton in rotationsdruckmaschinen.

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2405598A (en) * 1944-06-23 1946-08-13 Elliott Bay Mill Co Resiliently supported shear block
US2598820A (en) * 1949-11-29 1952-06-03 Beloit Iron Works Synchronous drive
US2986058A (en) * 1958-09-29 1961-05-30 Fmc Corp Perforating mechanism having pivoted anvil operable upon wadding of work to prevent damage to blades
DE1133970B (de) * 1961-06-19 1962-07-26 Goebel Gmbh Maschf Herstellung von Perforationslinien veraenderlicher Laenge
US3073196A (en) * 1962-07-05 1963-01-15 Marcalus Nicholas Progressive cutter for a web winding machine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2405598A (en) * 1944-06-23 1946-08-13 Elliott Bay Mill Co Resiliently supported shear block
US2598820A (en) * 1949-11-29 1952-06-03 Beloit Iron Works Synchronous drive
US2986058A (en) * 1958-09-29 1961-05-30 Fmc Corp Perforating mechanism having pivoted anvil operable upon wadding of work to prevent damage to blades
DE1133970B (de) * 1961-06-19 1962-07-26 Goebel Gmbh Maschf Herstellung von Perforationslinien veraenderlicher Laenge
US3073196A (en) * 1962-07-05 1963-01-15 Marcalus Nicholas Progressive cutter for a web winding machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4301701A (en) * 1979-02-08 1981-11-24 Winkler & Dunnebier Maschinenfabrik Und Eisengiesserei Gmbh & Co. Kg Rotary punch having a helically clamped abutment
US4318433A (en) * 1980-05-27 1982-03-09 Webster Wood Preserving Company Incisor roll
US5284304A (en) * 1991-04-03 1994-02-08 Fabio Perini S.P.A. Perforating apparatus for paper webs and the like, with reciprocating motion of translation of the counter-blade

Also Published As

Publication number Publication date
DE1806015A1 (de) 1969-09-11
DK118273B (da) 1970-07-27
GB1198576A (en) 1970-07-15
CH500820A (de) 1970-12-31
NL6815954A (de) 1969-05-13
AT288845B (de) 1971-03-25
FR1590848A (de) 1970-04-20
SE312268B (de) 1969-07-07

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