US3420421A - Machine for perforation of sheet material - Google Patents

Machine for perforation of sheet material Download PDF

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Publication number
US3420421A
US3420421A US580997A US3420421DA US3420421A US 3420421 A US3420421 A US 3420421A US 580997 A US580997 A US 580997A US 3420421D A US3420421D A US 3420421DA US 3420421 A US3420421 A US 3420421A
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US
United States
Prior art keywords
roll
patrix
press
studs
sheet material
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
US580997A
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English (en)
Inventor
Gustav Sigvald Hellberg
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.)
Individual
Original Assignee
Individual
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Publication date
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Publication of US3420421A publication Critical patent/US3420421A/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
    • B26F3/00—Severing by means other than cutting; Apparatus therefor
    • B26F3/002—Precutting and tensioning or breaking
    • 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
    • B26D11/00—Combinations of several similar cutting apparatus
    • 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
    • B26F1/02—Perforating by punching, e.g. with relatively-reciprocating punch and bed
    • 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
    • B26F1/16—Perforating by tool or tools of the drill type
    • 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
    • B26F1/24—Perforating by needles or pins
    • 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
    • Y10T225/00—Severing by tearing or breaking
    • Y10T225/30—Breaking or tearing apparatus
    • Y10T225/307—Combined with preliminary weakener or with nonbreaking cutter
    • Y10T225/321—Preliminary weakener
    • 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
    • Y10T225/00—Severing by tearing or breaking
    • Y10T225/30—Breaking or tearing apparatus
    • Y10T225/329—Plural breakers
    • 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
    • Y10T83/483—With cooperating rotary cutter or backup
    • Y10T83/4833—Cooperating tool axes adjustable relative to each other

Definitions

  • the present invention refers to a perforation machine of the kind where a sheet material in web form that is to be perforated is fed in contact with a tool which consists of a rotatable patrix roll provided with relief-like portions forming studs with a shape corresponding to the perforations, the sheet material being pressed against the end surfaces of the studs so that rupture indications are formed in the sheet material along the edges of the studs after which the sheet material is separated along said rupture indications by means of tangential frictional forces produced by a press roll.
  • a perforation machine of the kind where a sheet material in web form that is to be perforated is fed in contact with a tool which consists of a rotatable patrix roll provided with relief-like portions forming studs with a shape corresponding to the perforations, the sheet material being pressed against the end surfaces of the studs so that rupture indications are formed in the sheet material along the edges of the studs after which the sheet material is separated along said rupture indications by means
  • FIGURE 1 shows in a perspective view the central part of a perforation machine embodying a preferred form of the invention shown by way of example;
  • FIGURE 2 shows in a plane view a form of the machine having a patrix roll with two rows of press rolls in a machine made according to the invention
  • FIGURE 3 and FIGURE 4 show in outline from the side another embodiment of the machine with one patrix roll and two rows of press rolls therealong a still further embodiment with three patrix rolls each with one row of press rolls therealong, respectively;
  • FIGURE 5 shows in a perspective view and partially in section an individual press roll mounted on a support and utilized in my invention
  • FIGURE 6 is a perspective view of a perforating machine embodying a modified form of my invention particularly directed to perforating paper for making stamps, such as postage stamps;
  • FIGURE 7 is an end view of the machine shown in FIGURE 6;
  • FIGURE 8 is an enlarged end view of the working area of the patrix roll and press roll.
  • FIGURE 9 is a front elevational view of a perforating machine similar to that of FIGURE 6 and showing the patrix roll and two rows of press rolls, three press rolls shown in one row and two press rolls shown in the other row.
  • a perforation machine comprises a patrix roll 1, which is provided with relief-like portions forming studs 2 each with a shape corresponding to the desired perforations.
  • a web 3 of sheet material is adapted to be advanced over guide roll 4 and around the patrix roll 1, at which location the sheet material is thereby first pressed radially inward of patrix roll 1 and against the end surfaces of the studs so that rupture indications are formed in the sheet material along the edges of the studs.
  • a number of press rolls 5 are adapted to produce tangential frictional forces relative to the patrix roll 1 which separate the sheet material along said rupture indications at the edges of the studs. The press rolls preferably rotate in a direction opposite to the patrix roll, i.e.
  • the press rolls are mounted on supports 6 displaceable laterally of the machine on a bar 7 and each is driven by means of belts 8 from a common driving shaft 9.
  • a further row of press rolls may be provided, as shown in FIGURE 2, in order to cover the area of the patrix roll that at the front side is occupied by the supports 6.
  • each press roll 5 is on the surface thereof provided with ribs 10 which are obliqueangled to the roll generatrix. They are also slightly S- shaped because of the fact that the rectangular plates that form the ribs have been mounted oblique on the surface of a circular cylinder.
  • ribs 10 which are obliqueangled to the roll generatrix. They are also slightly S- shaped because of the fact that the rectangular plates that form the ribs have been mounted oblique on the surface of a circular cylinder.
  • the ribs are arranged inclined backwards in relation to the direction of rotation, which is the reason for stopping the patrix roll a little before the press roll as otherwise the studs will catch the ribs and bend them forward.
  • each press roll 5 by means of a conical press joint structure is attached to a shaft 11 which shaft is carried in the two assemblies of ball bearings 12 eccentrically mounted in a housing 13.
  • a pulley 14 is attached to the other end of the shaft 11 .
  • the housing 13 is mounted on the support 6 by means of a clamp joint.
  • the adjustment of the press roll 5 radially inward and outward relative to the patrix roll 1 is performed by turning the housing 13.
  • the housing is provided with a cog wheel 15 which is turned by means of cog wheel key applied in a hole 16.
  • FIGURE 4 shows a modification of the machine wherein the patrix is divided into a plurality of individual patrix rolls 1 in succession. In this way one can easier vary the pattern of the patrix. Furthermore it is possible to give the patrix rolls different speeds which is desirable for a certain kind of perforation operation.
  • the press rolls are preferably so arranged that the ribs of two adjacent press rolls are inclined or biased in different directions so that the lateral forces caused by the oblique-angle of the ribs are balanced and the sheet material is stretched in a direction axially of the patrix roll.
  • each press roll of a row is driven by means of belts from a joint drive shaft.
  • each press roll can be driven from a separate drive means or the driving can be effected in another way, for instance pneumatically with an air turbine at each press roll.
  • FIGURES 6 to 9, inclusive The purpose of the form of the invention illustrated in FIGURES 6 to 9, inclusive, is to solve the above mentioned problem, which purpose is fulfilled by the perforation machine made and used according to this modified form of the invention.
  • the modified form of invention directed to the perforating of paper for stamps is described in connection with FIGURES 6 to 9, inclusive.
  • a perforating machine is provided with a patrix roll 21 with relief-like portions forming studs 22 with a shape corresponding to the desired perforations.
  • the studs are divided into axial rows 22A and circumferential rows 22B.
  • a web 23 of sheet material is brought over guide rolls 24 and round the patrix roll 21, the sheet material being pressed against the end surfaces of the studs so that rupture indications are formed in the sheet material along the edges of the studs.
  • a number of press rolls 25 are adapted to produce tangential frictional forces which separate the sheet material along said rupture indications.
  • the press rolls 25 rotate in a direction opposite to the patrix roll 21, that is so that the opposite peripheral surfaces move in the same direction at the opposed working points.
  • the press rolls rotate at a many times greater peripheral speed than that of the peripheral speed of the patrix roll.
  • the studs arranged in circumferential rows project, according to this modified form of the invention, further outwards from the surface of the patrix roll than the studs arranged in axial rows.
  • each kind of studs can cooperate with its own set of press rolls.
  • the axial rows of studs 22A cooperate with the press rolls 25A each of which is sufficiently short in axial length that it will fit between two adjacent circumferential rows of studs 22B which in turn cooperate with the press rolls 25B which, however, do not have to be limited in respect to its axial length.
  • FIGURES 6 to 9, inclusive there is not shown how the individual press rolls are mounted, but they can suitably be mounted and spread out round the periphery of the patrix roll so that there is a sufiicient space for driving and bearing means in the same manner as described in connection with FIGURES 1 to 5, inclusive.
  • the sheet web 23 is not dislocated or stretched out on the patrix roll 21 so that the distances between the perforation rows are altered. Therefore a large contact surface for the web against a major portion of the patrix roll is important. As will be seen in FIGURE 7 this is performed in that the guide rolls 24 are placed close to each other.
  • the press rolls 25A and 25B on their circumferential peripheries are provided with ribs 26 which are obliqueangled to the roll generatrix. As will be seen in FIGURE 8, they also form an angle with the roll radius, indicated as angle a in FIGURE 8, so that they incline backwards in relation to the direction of rotation.
  • This negative rake or backward angle preferably has a size of between 05 and 10, and preferably of about 5, to radial lines through the respective ribs.
  • the press rolls are as described in connection with FIGURES 1 to 5, inclusive.
  • a perforation machine characterized by a structure in which the press rolls are arranged in a plurality of parallel rows, in each row of which the press rolls are mounted axially in line with each other so that the relief-like portions of substantially the whole patrix roll along its length may be met by press rolls.
  • a perforation machine the press rolls being on their surface provided with ribs which are oblique angled in relation to the roll generatrix, characterized by that the press rolls are mounted so that the ribs of two adjacent press rolls are inclined in different directions so that the lateral forces caused by the oblique angle are balanced and the sheet material is stretched in the latitudinal direction.
  • each press roll to make it possible to adjust it radially in relation to the patrix roll is mounted eccentric'ally in a housing carried t-urnable on a support.
  • a perforation machine characterized by the housing which is carried on the support by a clamp joint is provided with a cog wheel which for turning of the house at loosed clamp joint is adapted to cooperate with a cog wheel key applied in a hole in the support.
  • a perforation machine characterized by that the supports of each row of press rolls are mounted displaceable on a bar parallel to the patrix roll for adjustment axially.
  • a perforation machine characterized by that each of the press rolls are driven by means of individual belts from a joint shaft.
  • a perforation machine characterized that the press rolls are pneumatically driven by an air turbine of each press roll.
  • a perforation machine characterized by a plurality of patrix rolls arranged in succession with each its own row of press rolls, each of which patrix rolls carrying a part of the relief-like portions that are necessary for producing the desired perforation in the sheet material.
  • a perforation machine having a patrix roll and a press roll cooperating with perforating portions on the patrix roll, said patrix roll being rotatable in one direction and the press roll being rotatable in an opposite direction, said press roll having rib extending generally outwardly therefrom to direct the outer end portions of the ribs toward the patrix roll and against the perforating portions thereof, said ribs being inclined backwards relative to the said opposite direction of rotation, the said outer end portions of the ribs meeting the perforating portions of the patrix roll at said backward inclination.
  • a perforating machine having a rotatable patrix roll over which a web of sheet material such as paper is moved with the rotation of the patrix roll for forming of perforations in the sheet material in correspondence with the disposition of perforation elements on the patrix roll and a rotatable press roll having its axis disposed parallel with the axis of the patrix roll for cooperation with the stud elements of the patrix roll in forming said perforations upon forward rotation of the press roll in a first direction, the improvement of a plurality or ribs extending along said press roll and protruding outwardly from the cyindrical surface of the press roll, said ribs in protruding outwardly being inclined at negative angles to lines extending radially outward of the press roll through the respective ribs to lean away from the forward movement of the ribs with said press roll rotating in said first direction.
  • a machine for perforating a web of paper or the like with perforations disposed in rows the combination of a patrix roll having perforation forming elements formed thereon in rows to correspond with rows of perforations to be formed in the paper or the like, means for rotating the patrix roll in a first direction and to move the web of paper or the like against the patrix roll about the axis thereof in correspondence with the peripheral rotative speed and direction of the patrix roll to press the paper against said elements, and a rotatable press roll disposed adjacent said patrix roll to cooperate with said elements for perforating the paper or the like where pressed against said elements, said press roll being rotated in the opposite direction from the rotative direction of said patrix roll to correspond with the direction of the web of said paper or the like, said press roll being rotated at its periphery at a substantially greater speed than the peripheral speed of the patrix roll and of said web moving therewith, the said press roll at its periphery being provided with ribs which extend outwardly toward said press roll

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  • 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)
US580997A 1964-09-11 1966-09-21 Machine for perforation of sheet material Expired - Lifetime US3420421A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE1094864 1964-09-11

Publications (1)

Publication Number Publication Date
US3420421A true US3420421A (en) 1969-01-07

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Application Number Title Priority Date Filing Date
US580997A Expired - Lifetime US3420421A (en) 1964-09-11 1966-09-21 Machine for perforation of sheet material

Country Status (5)

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US (1) US3420421A (enrdf_load_stackoverflow)
BE (1) BE665487A (enrdf_load_stackoverflow)
CH (1) CH433915A (enrdf_load_stackoverflow)
DK (1) DK107075C (enrdf_load_stackoverflow)
GB (1) GB1055084A (enrdf_load_stackoverflow)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4711797A (en) * 1984-11-05 1987-12-08 Tetra Pak International Ab Material for packing containers
US5065655A (en) * 1990-03-09 1991-11-19 Haber Terry M Pill strip dispenser
US5119969A (en) * 1990-03-09 1992-06-09 Haber Terry M Pill strip dispenser
US20050087048A1 (en) * 2003-10-24 2005-04-28 Sealed Air Corporation Perforation mechanism for a foam-in-bag cushion and method of use
US11035079B2 (en) 2016-04-05 2021-06-15 Schweitzer-Mauduit International, Inc. Vegetable paper comprising fibres of a plant

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2300829A (en) * 1995-05-15 1996-11-20 Leonard John Foad Punch with reversible sprocket punches
CN112976152A (zh) * 2021-02-02 2021-06-18 徐芝芬 一种方便更换打孔针的塑料薄膜打孔装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2801501A (en) * 1955-12-21 1957-08-06 Peter J Schweitzer Inc Apparatus for perforating paper
US2996959A (en) * 1956-10-11 1961-08-22 Hellberg Gustav Sigvald Means for perforating paper and the like

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2801501A (en) * 1955-12-21 1957-08-06 Peter J Schweitzer Inc Apparatus for perforating paper
US2996959A (en) * 1956-10-11 1961-08-22 Hellberg Gustav Sigvald Means for perforating paper and the like

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4711797A (en) * 1984-11-05 1987-12-08 Tetra Pak International Ab Material for packing containers
US5065655A (en) * 1990-03-09 1991-11-19 Haber Terry M Pill strip dispenser
US5119969A (en) * 1990-03-09 1992-06-09 Haber Terry M Pill strip dispenser
US20050087048A1 (en) * 2003-10-24 2005-04-28 Sealed Air Corporation Perforation mechanism for a foam-in-bag cushion and method of use
EP1527857A3 (en) * 2003-10-24 2005-12-07 Sealed Air Corporation (A Delaware Corporation) Perforation mechanism for a foam-in-bag cushion and method of use
US7160096B2 (en) 2003-10-24 2007-01-09 Sealed Air Corporation Perforation mechanism for a foam-in-bag cushion and method of use
US11035079B2 (en) 2016-04-05 2021-06-15 Schweitzer-Mauduit International, Inc. Vegetable paper comprising fibres of a plant

Also Published As

Publication number Publication date
DK107075C (da) 1967-04-17
CH433915A (de) 1967-04-15
GB1055084A (en) 1967-01-11
BE665487A (enrdf_load_stackoverflow) 1965-10-01

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