US3524364A - Apparatus for stripping waste from cardboard and like blanks - Google Patents

Apparatus for stripping waste from cardboard and like blanks Download PDF

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Publication number
US3524364A
US3524364A US3524364DA US3524364A US 3524364 A US3524364 A US 3524364A US 3524364D A US3524364D A US 3524364DA US 3524364 A US3524364 A US 3524364A
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US
United States
Prior art keywords
blank
blanks
roll
rolls
stripping
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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
Thomas Desmond Bishop
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DERITEND ENGINEERING (1983) Ltd
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Deritend Engineering Co Ltd
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Assigned to DERITEND ENGINEERING (1983) LIMITED reassignment DERITEND ENGINEERING (1983) LIMITED ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: DEC (REALISATIONS) LIMITED
Assigned to DEC (REALISATIONS) LIMITED reassignment DEC (REALISATIONS) LIMITED CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). EFFECTIVE FEBRUARY 17, 1984. Assignors: DERITEND ENGINEERING COMPANY LIMITED THE
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Expired - Lifetime 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
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/18—Means for removing cut-out material or waste
    • B26D7/1818—Means for removing cut-out material or waste by pushing out
    • 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
    • Y10T83/202—With product handling means
    • Y10T83/2074—Including means to divert one portion of product from another
    • Y10T83/2079—Remaining or re-inserted product portion from base material

Definitions

  • the apparatus comprises a pair of spaced rolls and is provided with guide means for maintaining the blanks substantially in a planar path tangent to both of the spaced rolls and extending substantially beyond the rolls in the direction of feed.
  • a plurality of stripping members project from one of the rolls and pass through such planar path, for stripping the waste from the blanks by displacing it out of such path.
  • This invention relates to the manufacture of blanks of cardboard and like material for use in the construction of boxes, cartons and the like.
  • the objects of the present invention are primarily to provide more efiicient stripping.
  • cardboard and like material blank stripping apparatus comprises a roll pair having the axes of the rolls lying in planes parallel to one another and both normal to the feed path of blanks therebetween, whereby the nip between the rolls extends over a tangent common to both rolls and between said parallel planes.
  • the pieces pressed or drawn out of the blanks may be contacted by successive projections or the like spaced apart in a direction circumferential of the rolls, i.e. along the feed path, at one and the same time.
  • one of the rolls is provided with projections for example in the form of studs and the other of the rolls has a yielding surface and preferably a resilient sur face for engagement by the projections.
  • the projections may themselves be yielding, in which case the resilient surface on the other of the rolls is no longer essential although it is still preferable.
  • the blanks may be supported during their travel through the roll nip upon parallel stationary support wires adjustable transversely of the rolls so as to enable projections at any point across the width to be used.
  • a travelling support surface such as a plurality of endless belts may be employed.
  • Some of the projections are preferably carried on bars extending transversely of the roll pair, and parallel to the axes of the rolls, and mounted on endless chains, one chain being provided at each end of the roll pair.
  • the bar or one of the bars where a number is provided may be provided with grippers arranged to perform a dual function; firstly the grippers may operate as stripping projections to strip that portion at the leading edge of the blank which is not required, and after such stripping to grip the edge of the required blank so as to draw the blank along the line of feed and deposit it upon stacking means.
  • each gripper may be provided whereby a movable part of each gripper is held in an open position during the stripping action, and is then moved in the opposite direction to the feed of the blank so as to overlap the leading end of the useful portion of the blank before the gripper is closed to grip the blank.
  • FIG. 1 is a diagrammatic elevation of a machine embodying the invention
  • FIG. 2 is an enlarged fragmentary sectional elevation of the machine
  • FIG. 3 is a reduced scale plan on the line 3-3 FIG. 2;
  • FIG. 4 is a plan of a blank
  • FIG. 5 shows a detail of a modification
  • FIG. 6 is an elevation of another machine embodying the invention.
  • FIGS. 7 and 8 are enlarged sectional fragmentary views of parts of the machine of FIG. 6.
  • a combined stripper/stacker machine is provided with a pair of small diameter feed rolls 10 to deliver blanks from the cutter machine 11 into the nip between the main stripper pairs 12, 13 and the feed rolls are positioned as close to the stripper roll pair as is possible. Further feed rolls 14 are also provided.
  • the stripper roll pair comprises a pair of rolls of substantial diameter so that the circumferential length of at least the upper roll 13 is equal to the feed length of the largest blank 16 envisaged, and the stripper rolls are staggered along the path of the blanks so that for example the plane P1 containing the axis of roll 12 and normal to the blank 16 is spaced from the like plane P2 containing the axis of the other roll 13.
  • the top roll of the pair is located some three or four inches forward of the lower roll of the pair.
  • the lower support roll 12 of the pair is plain and its outer surface is provided with a blank 18 of yielding material for example polyurethane.
  • the upper stripping roll may be provided with a forrne 20 of sheet metal bolted or otherwise secured in position and provided on its surface with a pattern of studs 21 individual 1y welded in place for example in the manner more particularly described and illustrated in my Pat. No. 3,479,- 931.
  • a further stud 21 is arranged to contact the piece behind the first-mentioned stud 21, before the said first-mentioned stud reaches the plane P2, and so on, so that each piece is contacted and displaced by two or more studs which lie in the nip, i.e. the space between planes P1 and P2 and hence the piece is fir-mly displaced out of the plane of the blank to fall below the blank.
  • FIGS. 2 and 3 disclose further details of a preferred embodiment, and the action may be further elucidated by reference to FIG. 2.
  • This embodiment also utilises guide means for maintaining the blanks substantially in a planar path tangent to both of the spaced rolls 12, 13 and extending substantially beyond the rolls in the direction of feed.
  • guide means consist in support wires 30 which extend from clamp block 32, behind the nip and over block 34 in front of the nip, to a tensioning shaft 36 below feed rolls 14. Wires 30 (see FIG. 3) are parallel and serve to support the blank between the two sets of feed rolls.
  • Each wire has a nipple 37 located in a groove 38 in block 32, allowing lateral adjustment, and block 34 is grooved at 39 to locate the adjusted wires.
  • the latter also have nipples 41 at their other ends, and engaged in split rings 44 which can be clamped to the shaft 36 to tension the wires.
  • FIG. 4 illustrates the blank and also the positions 50 of the studs as they contact the latter during stripping.
  • the lines of the wires are shown in FIG. 4 in chain dot lines at 52.
  • the required blank is shaded on FIG. 4, and the pieces to be removed are not shaded thereon.
  • the stud 211 is resilient, and comprises a headed portion 212 with the head trapped in a hollow end part 213, and with a compression spring 214 interposed, so that the end face 215 can be deflected upwards. This may allow the stud as a whole to contract lengthwise in passing through the minimum nip zone, and then extend to push the unwanted piece out of the plane of the blank.
  • FIGS. 6 to 8 show a further machine in which the upper roll is provided at at least one position with a groove or channel 101 extending across the width of the roll to accommodate a guide means consisting of a gripper bar 102 and the ends of the bar are secured to a pair of parallel roller chains 103 running on sprockets 104 or on other guides at the ends of the upper roll, and the chains extend forwardly in the direction of travel of the blanks towards the delivery end of the machine Where they extend around further sprockets or guide means 105.
  • the bar is provided with a series of grippers for example spaced at one inch or two inch intervals along its length, thus across the width of the roll.
  • Each gripper comprises a fixed finger 11d and a movable finger 111 and the movable fingers are individually spring urged at 112 to an open position in which they lie spaced from the fixed fingers.
  • Cam means are provided on a shaft 115 extending along the bar for angular turning movement so as to lift the finger against the springs, after the fingers have acted as stripper studs, and hold the pairs of fingers closed receiving the leading edge of a blank therebetween.
  • the shaft is not only angularly movable but also rearwardly displaceable in direction B, FIGS. 6 and 7 so as to displace the movable fingers between the first position displaced relative to the fixed fingers, and a second position substantially overlying the fixed fingers.
  • Means are provided for example in the form of cam plates fixed relative to the roll pair for tripping the mechanism so as to cause the movement of the movable fingers so as to grip a blank edge located therebetween, when located appropriately at the nip, and open them later.
  • this portion of the machine is that as the blanks are fed in timed relation into the nip, the bar enters the nip in the FIG. 7 position so that the movable fingers held in a first position engage the portion of the blank extending across the width of the blank, and which is to be removed as scrap, so as to displace that portion through the plane of the blank relative to the guide wires or guide supports and hence effect stripping, the stripped portion being allowed to fall or being extracted by suction means located immediately forwards of the nip.
  • the movable fingers lie immediately in front of the edge of the blank, and the mechanism is tripped or operated to displace the movable fingers rearwardly and then upwardly to the FIG. 8 position so that the leading edge of the blank is gripped thereby and as the bar complete with grippers leaves the roll pair and travels on the chains towards the delivery end of the machine the blank is drawn thereby along its feed path.
  • the blanks will be released by the gripper means by mechanism provided at or in the vicinity of the sprockets or guide means remote from the roll pair or, in the case of the illustrated mechanism, the movement of the bar past the end of the cam plates 120 will allow the springs 112 to re-open the fingers, and the released blanks may be dropped on to a stack forming table 140 which may be lowered from time to time as the blank stack builds up and any conventional intermittently operable release gates including adjustably positioned gates may be provided where the table has a conveyor for carrying the batches away.
  • the blanks may be dropped on for example a transversely extending table or conveyor for batch formmg.
  • grippers to deliver blanks may facilitate forming batches in which the individual blanks are accurately aligned with one another.
  • Apparatus for stripping waste from cardboard and like blanks comprising a horizontal stripper roll having a plurality of stripping members projecting therefrom, guide means for maintaining the blanks substantially in a horizontal planar path that is tangent to the bottom of the stripper roll and extends substantially beyond the stripper roll in the direction of feed, wherein the improvement comprises a support roll which is located below such planar path and is tangent to such planar path along a line that is located substantially in advance of the line of tangency of the stripper roll to such planar path, so that the support roll assists in maintaining the blanks tangent to the stripper roll while permitting the stripping members to project freely through the planar path of blanks beyond the support roll in order to displace the waste away from the stripper roll and completely out of such planar path.
  • Apparatus according to claim 1 wherein the guide means for maintaining the blanks substantially in a planar path comprises support wires extending between the rolls.
  • Apparatus according to claim 1 wherein the guide means for maintaining the blanks substantially in a planar path comprises grippers carried on chains extending around one roll and arranged to draw blanks between and beyond the rolls along such planar path.
  • Apparatus according to claim 4 wherein the larger roll carries a sheet metal forme with a pattern of stripping members.

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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)
  • Making Paper Articles (AREA)
US3524364D 1967-02-21 1968-02-07 Apparatus for stripping waste from cardboard and like blanks Expired - Lifetime US3524364A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB815567A GB1181825A (en) 1967-02-21 1967-02-21 Improvements relating to the Manufacture of Blanks of Cardboard and Like Material for use in the Construction of Boxes, Cartons and the like

Publications (1)

Publication Number Publication Date
US3524364A true US3524364A (en) 1970-08-18

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Family Applications (1)

Application Number Title Priority Date Filing Date
US3524364D Expired - Lifetime US3524364A (en) 1967-02-21 1968-02-07 Apparatus for stripping waste from cardboard and like blanks

Country Status (4)

Country Link
US (1) US3524364A (de)
DE (1) DE1611617B2 (de)
FR (1) FR1553591A (de)
GB (1) GB1181825A (de)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2233880A1 (de) * 1971-07-10 1973-01-25 Deritend Eng Co Abtrennvorrichtung
US3889863A (en) * 1973-03-30 1975-06-17 Clovis F Deslauriers Stripping machine
US3946627A (en) * 1973-02-16 1976-03-30 Alfred Hofmann Rotary apparatus for punching apertures into corrugated board material
US3956974A (en) * 1974-04-26 1976-05-18 Friedrich Schroter Device for breaking out scrap pieces from a punched sheet
US4026199A (en) * 1975-10-06 1977-05-31 S&S Corrugated Paper Machinery Co., Inc. Sheet end cutter and stripper
US4031816A (en) * 1975-07-14 1977-06-28 Masaharu Matsuo Apparatus for trimming adhering scrap from a punched cardboard blank
US4220272A (en) * 1978-10-30 1980-09-02 Danti Bernard R Precision cutting means
US4985012A (en) * 1989-09-19 1991-01-15 Marquip Inc. Apparatus for stripping scrap from die cut blanks
US6817274B1 (en) * 2003-11-13 2004-11-16 Winkler + Dunnebier, Ag Cam driven pin stripping device
US20050274247A1 (en) * 2004-06-14 2005-12-15 Sean Talkington Stripper apparatus and methods for rotary dies
US20130228056A1 (en) * 2010-11-19 2013-09-05 Boris Béguin Device for a unit for ejecting waste in a machine for producing packaging
EP3341183A4 (de) * 2015-08-26 2019-03-27 Highcon Systems Ltd. Verfahren und vorrichtung zum aufbau eines 3d-objekts aus schichten eines im voraus abgelösten substrats

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3500547A1 (de) * 1985-01-10 1986-07-10 Focke & Co (GmbH & Co), 2810 Verden Verfahren und vorrichtung zum herstellen von zuschnitten fuer verpackungen
DE3734535A1 (de) * 1987-10-13 1989-04-27 Meurer Nonfood Product Gmbh Vorrichtung und verfahren zur herstellung einer einrichtung fuer die bearbeitung von bogenmaterial
DE3834096C2 (de) * 1988-03-08 1996-10-02 Meurer Nonfood Product Gmbh Vorrichtung und Verfahren zum Herstellen einer Einrichtung für die Bearbeitung von plattenförmigen Werkstücken od. dgl.
CN110027256B (zh) * 2019-05-10 2024-07-12 佛山市天正机械有限公司 模切机双重剥离机构

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2888860A (en) * 1955-01-27 1959-06-02 Baumgartner John Robert Blank forming apparatus
US3117499A (en) * 1960-01-07 1964-01-14 Golding William Frank Apparatus for separating waste and work in cut sheets
US3404607A (en) * 1967-01-09 1968-10-08 Harris Intertype Corp Material handling apparatus

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2888860A (en) * 1955-01-27 1959-06-02 Baumgartner John Robert Blank forming apparatus
US3117499A (en) * 1960-01-07 1964-01-14 Golding William Frank Apparatus for separating waste and work in cut sheets
US3404607A (en) * 1967-01-09 1968-10-08 Harris Intertype Corp Material handling apparatus

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2233880A1 (de) * 1971-07-10 1973-01-25 Deritend Eng Co Abtrennvorrichtung
US3834291A (en) * 1971-07-10 1974-09-10 Deritent Eng Co Ltd Stripping apparatus as used in the production of cardboard and like blanks
US3946627A (en) * 1973-02-16 1976-03-30 Alfred Hofmann Rotary apparatus for punching apertures into corrugated board material
US3889863A (en) * 1973-03-30 1975-06-17 Clovis F Deslauriers Stripping machine
US3956974A (en) * 1974-04-26 1976-05-18 Friedrich Schroter Device for breaking out scrap pieces from a punched sheet
US4031816A (en) * 1975-07-14 1977-06-28 Masaharu Matsuo Apparatus for trimming adhering scrap from a punched cardboard blank
US4026199A (en) * 1975-10-06 1977-05-31 S&S Corrugated Paper Machinery Co., Inc. Sheet end cutter and stripper
US4220272A (en) * 1978-10-30 1980-09-02 Danti Bernard R Precision cutting means
US4985012A (en) * 1989-09-19 1991-01-15 Marquip Inc. Apparatus for stripping scrap from die cut blanks
US6817274B1 (en) * 2003-11-13 2004-11-16 Winkler + Dunnebier, Ag Cam driven pin stripping device
US20050274247A1 (en) * 2004-06-14 2005-12-15 Sean Talkington Stripper apparatus and methods for rotary dies
US20130228056A1 (en) * 2010-11-19 2013-09-05 Boris Béguin Device for a unit for ejecting waste in a machine for producing packaging
US9327421B2 (en) * 2010-11-19 2016-05-03 Bobst Mex Sa Device for a unit for ejecting waste in a machine for producing packaging
EP3341183A4 (de) * 2015-08-26 2019-03-27 Highcon Systems Ltd. Verfahren und vorrichtung zum aufbau eines 3d-objekts aus schichten eines im voraus abgelösten substrats

Also Published As

Publication number Publication date
DE1611617B2 (de) 1976-10-07
DE1611617A1 (de) 1971-01-14
FR1553591A (de) 1969-01-10
GB1181825A (en) 1970-02-18

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Owner name: DERITEND ENGINEERING (1983) LIMITED,ENGLAND

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:DEC (REALISATIONS) LIMITED;REEL/FRAME:004337/0876

Effective date: 19841003

Owner name: DEC (REALISATIONS) LIMITED

Free format text: CHANGE OF NAME;ASSIGNOR:DERITEND ENGINEERING COMPANY LIMITED THE;REEL/FRAME:004339/0184

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Effective date: 19841003