US3198045A - Method of perforating webs containing resin - Google Patents

Method of perforating webs containing resin Download PDF

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Publication number
US3198045A
US3198045A US5293560A US3198045A US 3198045 A US3198045 A US 3198045A US 5293560 A US5293560 A US 5293560A US 3198045 A US3198045 A US 3198045A
Authority
US
United States
Prior art keywords
tool
paper
patrix
studs
roll
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
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English (en)
Inventor
Hellberg Gustav Sigvald
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.)
Produktions-Service AB
Original Assignee
Produktions-Service 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 Produktions-Service AB filed Critical Produktions-Service AB
Application granted granted Critical
Publication of US3198045A publication Critical patent/US3198045A/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
    • B26F1/02—Perforating by punching, e.g. with relatively-reciprocating punch and bed
    • B26F1/06—Perforating by punching, e.g. with relatively-reciprocating punch and bed with punching tools moving with the work
    • B26F1/10—Roller type punches
    • 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
    • B26F1/0007—Perforation of photographic films
    • 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
    • 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
    • Y10T83/04—Processes

Definitions

  • the present invention relates to a method and an arrangement in which preferably only one tool operating in one direction is required, although, of course, the invention is not limited to the provision of one tool only.
  • the present invention relates to a method of perforating paper and the like including resin constituting substances comprising feeding a paper web onto a rotatable patrix and into contact with relief-like stud portions on the patrix having a shape corresponding to the shape of the perforations, rotating a tool against the paper into contact with the studs of the rotatable patrix to work the paper web against the studs and produce the perforations, and
  • FIG. 1 is a diagrammatic view in side elevation and partly in cross-section of the components essential for effecting the perforation of the paper web according to the invention
  • FIG. 2 is a fragmentary view partly in elevation and partly in cross-section of the patrix and the tool showing the relationship between a stud on the patrix, the paper and a rim on the tool during an initial phase of the method,
  • FIG. 3 is a view similar to FIG. 2 illustrating the relationship after a coating has been obtained on the stud and .rim, and
  • FIG. 4 is a view in side elevation and partly in crosssection of an arrangement for maintaining the coatings obtained by the studs and rims.
  • a paper Web 2 Wound on a supply reel 1 is adapted to run over a freely rotatable roller 3 and thereafter about cylindrical surface 5 of a patrix roll 4.
  • the roll is provided with small projecting studs and/or pins 6 of steel which are arranged in the positions corresponding to the positions of the perforations to be formed in the paper web.
  • the studs or pins have end surfaces corresponding to the shape of the desired perforations and a height dimension only slightly greater, for instance 0.1 mm. than the thickness of the paper web. In the drawings, however, the relative thickness of the paper is shown on an exaggerated scale.
  • the studs 6 have an outer surface which is concentric to the patrix roller and a cross section corresponding to the perforations.
  • the patrix roll is driven continuously in .the direction shown by arrow '7 and by means of friction between the studs and the paper web moves the web therewith.
  • the paper Web coacts with a tool 8 defined by a roll arranged in parallelism to the patrix roll.
  • the tool 8 is provided with firmly clamped rims, cams or the like 9 of steel on the peripheral surface thereof or cut out of the roll and the rims have an end surface concentric relative to the roll 8.
  • Such end surface follows the radius of the roll 8 and the rims function to coact with the portions of the paper Web which lie upon the studs 6.
  • the rims mutually extend in parallelism and are preferably inclined alternately along the roll in different directions, whereby the laterally directed forces caused by the inclination of the rims are equalized.
  • the tool 3 rotates in an opposite direction to that of the patrix roll as shown by the arrow 10, the peripheries of the tool 8 and the patrix roll running in the same direction.
  • the tool however, has a peripheral speed many times greater than that of the patrix roll.
  • end surfaces 11 of the studs 6 lie in a cylindrical surface coaxialwith the axis of the patrix roll 4.
  • a cavity 12 is obtained after a certain operational time due to the fact that the end surfaces of the rims 9 are tempered or provided with a hard metal.
  • an annular edge portion 13 is also obtained, and which portion has an outer sharp edge and an inner obtuse or rounded edge.
  • the cavity 12 reduces the portion of the paper web which lies upon the stud and which is required to be acted upon for receiving a perforation.
  • a clearance is present between the end surfaces of the rims 9 and the annular shaped edge portion 13 of the studs. It is important that said clearance is not maintained at too low values, i.e. that the clearance must not be below about 2a of a millimeter). This minimum value is independent of the thickness of the paper.
  • the paper web continuously supplies new coating material to the studs and rim. It is thus possible to obtain a processing of the paper web which is much superior to the methods previously known, since the tool and patrix by means of the coatings are brought into physical contact thereby producing very sharp edged perforations without any wear of either the tool,or
  • the material to-be perforated must. includesuch substances as are capable ofv conjstituting coating material during the perforating steps. Further, the humidity and temperature conditions ,of the 'air have to' be maintained with suitable values for ob raining thecoating of the resin'constituting' substances .(i.e. lignine-and wax like. substances). 'Moreover, it is of great importance that the clearance between-the tool iandpatrixis n'ot too small. Ata-very slight clearance, the.
  • the patrix roll is supported "by a stand' 16 which is integral ,with a base plate 17.
  • a horizontal shaft 19 is supported by a bearing bracket 18 and the'shaft carries a cradle 20 'swingable' thereabout with a carriage 21 being slidably -arranged thereon.
  • the tool 8 is rotatably supported by the carriage and to adjust the clearance between the 'member 32 may be'defined by a servo-amplifier which controls two solenoid air valves ,in the adjusting device 31 and each. of which is connected to'the cylinder 28 via lines 30.
  • the air pressure control valve in the conduit 37 and nozzle 39" is determined by the diaphragm or pressure sensitive member employed to actuate the electrical contact. 7
  • the photoelectric cell 33 maybe connected in' any a known manner to the guide 'member or amplifier 32.
  • a screw' and nut assembly 23 ' is'provided. Such assembly may be locked and is co-' operably associated with an upstanding member'22 of the cradle 20.
  • the vouter end of the cradle 20 is normally adapted to rest against the base plate 17 by-means of an accurate grinded planar surface 124;
  • the cradle may be swung aroundshaft 19 in the directions indicated by the double-headed arrow 25 and the carriage 21 may be moved in the directions indicated by thedouble-headed arrow-26;
  • a pneumatically operated cylinder 28 is located below the base plate on a depending arm 27 carriedptherebyi
  • the cylinder 28 is provided with a piston 29, which is pivotally connected with the cradle and by actuation of the cylinder 28, the cradle "and the remaining parts connected therewith'may be caused to assume the positions 20-218 shown in dotted lines.
  • the toolmembers have been moved out of contact with the paper web and thepatrix rollf4 by the movement effected and to obtain an accurate longitudinal fmovement of the '.carriage 21, thejsame is guided in grooves (not shown) on the cradle'20.
  • the cylinder 28 is adapted to be actuated by an electrically controllable adjusting arrangement 31 which is connected thereto by lines 30.
  • the last mentioned arrangement is electrically connected with a guide'mern- 'ber 32, which derives impulsespartly from a photoelectric cell 33 through a line 34 and partly from a measuring device 35 through line'36.
  • the device 35 is such that it "converts air pressure values in a pipe line into electrical impulses.
  • A' conduit 37 extends from the device 35 and air flows through such conduit in the direction shown by the arrow 38.
  • the conduit 37 is connected to the stand 16 and is directed towards the tool 8' and ends in, a nozzle 39 which is arranged closely to .a cylindrical surface 40 of the tool 8. This surface 40 is concentric to the working surfaces of the rims 9 and sincethe'nozzle is situated very close to the surface 40,. a certain, flow resistance will be effected for the air in the conduit 37.
  • the pressure values may be permitted to vary within certain predetermined limits.
  • the measuring device 35 may include a pressure sensitive member such as a diaphragm which cooperates with an electrical contactso that when the air pressure exceeds a certain limit, the contact closes and thereby activates a circuit to .the guide member 32.
  • a pressure sensitive member such as a diaphragm which cooperates with an electrical contactso that when the air pressure exceeds a certain limit, the contact closes and thereby activates a circuit to .the guide member 32.
  • the member 32 may also be actuated and released by measuring device 35.
  • the rolls 4 :and 8am assumed to be stationary and thereafter the .device'35 is adjusted such that the releasing impulses go 'outtothe guide member 32 when the pressures in the conduit 37 correspond to a clearance of 1.5 or less, or '2'.5,u or-more.
  • the paper web is inserted over the rolls as shown, so that the guide member 32 may be connected and the rolls started.
  • the photoelectric cell 33 will immediately respond and give-a releasing im-pul-se'to the guide member 32,
  • the clearance between the rolls may, of course, be meas- Juredin other ways 'such as, for'instance by means of capacitive electrical measuring means or the like.
  • a method of perforating paper and the like of a sheet-like form the steps of which include feeding the paper onto a rotatable patrix and into contact with relieflike stud portions on said patrix having a shape corresponding to the shape of the perforations, rotating a tool against the paper in contact with the studs of the rotatable patrix to work the paper against the studs to produce said perforations, and producing a resinous coating upon the peripheral surfaces of the studs and tool to provide a working surface for the studs and tool to accomplish the perforating operation.
  • a method of perforating paper and the like of a continuous sheet-like form the steps of which include feeding the paper onto a rotatable patrix and into contact with relief-like stud port-ions on said patrix having a shape corresponding to the shape of the perforations, rotating a tool against the paper in contact with the studs to produce said perforations, and producing a resinous coating upon the peripheral surfaces of the studs and tool to provide a working surface for the studs and tool to accomplish the perforating operation, with said coating-s being allowed to grow in thickness until the same come into peripheral contact with one another.

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Replacement Of Web Rolls (AREA)
US5293560 1959-08-31 1960-08-30 Method of perforating webs containing resin Expired - Lifetime US3198045A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE804659 1959-08-31

Publications (1)

Publication Number Publication Date
US3198045A true US3198045A (en) 1965-08-03

Family

ID=20272996

Family Applications (1)

Application Number Title Priority Date Filing Date
US5293560 Expired - Lifetime US3198045A (en) 1959-08-31 1960-08-30 Method of perforating webs containing resin

Country Status (3)

Country Link
US (1) US3198045A (enrdf_load_stackoverflow)
CH (1) CH381516A (enrdf_load_stackoverflow)
NO (1) NO126992B (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090093974A1 (en) * 2007-10-04 2009-04-09 James Glass Machine-Independent Roller Counting System

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE544986A (enrdf_load_stackoverflow) *
US1730196A (en) * 1926-05-29 1929-10-01 Pamphilis Gennaro De Multiple scoring and slitting device
US2033181A (en) * 1933-09-08 1936-03-10 Case G Harry Rotary shear
US2571201A (en) * 1947-10-03 1951-10-16 Rice Barton Corp Slitting mechanism
US2607708A (en) * 1949-08-02 1952-08-19 Universal Moulded Products Cor Method for making resin impregnated and coated fabric sheets
US2664950A (en) * 1950-11-09 1954-01-05 Morgan Construction Co Rotary shears
US2684117A (en) * 1951-09-08 1954-07-20 Harris Seybold Co Slitter for printing presses
US2989882A (en) * 1956-09-11 1961-06-27 Tribune Company Method and apparatus for slitting paper webs

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE544986A (enrdf_load_stackoverflow) *
US1730196A (en) * 1926-05-29 1929-10-01 Pamphilis Gennaro De Multiple scoring and slitting device
US2033181A (en) * 1933-09-08 1936-03-10 Case G Harry Rotary shear
US2571201A (en) * 1947-10-03 1951-10-16 Rice Barton Corp Slitting mechanism
US2607708A (en) * 1949-08-02 1952-08-19 Universal Moulded Products Cor Method for making resin impregnated and coated fabric sheets
US2664950A (en) * 1950-11-09 1954-01-05 Morgan Construction Co Rotary shears
US2684117A (en) * 1951-09-08 1954-07-20 Harris Seybold Co Slitter for printing presses
US2989882A (en) * 1956-09-11 1961-06-27 Tribune Company Method and apparatus for slitting paper webs

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090093974A1 (en) * 2007-10-04 2009-04-09 James Glass Machine-Independent Roller Counting System

Also Published As

Publication number Publication date
CH381516A (de) 1964-08-31
NO126992B (enrdf_load_stackoverflow) 1973-04-24

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