US3834291A - Stripping apparatus as used in the production of cardboard and like blanks - Google Patents

Stripping apparatus as used in the production of cardboard and like blanks Download PDF

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Publication number
US3834291A
US3834291A US26977772A US3834291A US 3834291 A US3834291 A US 3834291A US 26977772 A US26977772 A US 26977772A US 3834291 A US3834291 A US 3834291A
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US
United States
Prior art keywords
loops
blank
blanks
feed path
stripping apparatus
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
T Bishop
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DERITEND ENGINEERING (1983) Ltd
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Deritend Engineering Co Ltd
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
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Publication of US3834291A publication Critical patent/US3834291A/en
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
Assigned to DERITEND ENGINEERING (1983) LIMITED reassignment DERITEND ENGINEERING (1983) LIMITED ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: DEC (REALISATIONS) LIMITED
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
    • 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
    • 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
    • B26D2007/1872—Means for removing cut-out material or waste using breakaway 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
    • 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

  • ABSTRACT Juhasz Assistant ExaminerLeon Gilden Attorney, Agent, or Firm-Marshall & Yeasting
  • the invention provides stripping apparatus for use in the manufacture of cardboard and similar blanks in which the cut blanks are passed through a roll pair, one of the rolls having pins or projections to engage with the scrap areas of the blank and deflect them out of the feed path, and in which each roll is encircled by a series of conveyor belts so that the belts serve to maintain the blank in the feed path, the belts being adjusted along the axes of the rolls so as to engage the blank only over the areas which are to be maintained in the feed path and not over the areas which are to be displaced out of the feed path as scrap; in a modification, some of the belts extend about the one roll and through the feed path, these additional belts being arranged so as to engage only with the scrap material and they thus serve to convey the scrap material out of the feed path.
  • This invention relates to stripping apparatus as used in the production of cardboard and other blanks when a pattern of cuts is made in a blank, so as to define for example a base, side walls, a lid and flaps of a carton to be erected from the blank subsequently, and wherein the blank material not utilised in the said base or other areas (hereinafter called scrap) is separated from the remainder.
  • apparatus of the kind referred to is characterised by the provision of a plurality of endless conveyor loops, encircling one of the rollers and the loops passing through the rollers nip so as to be adapted to feed blanks through the nip, the lateral spacing between the several loops permitting operation of the projections therebetween.
  • the loops are in pairs and the upper loops encircle the roller which carries the projections and these loops may be flat belts, whereas the lower loops are of circular or Vee cross-sectional shape, and encircle the other roll, so as to lie below the flat belts and be pressed into the yielding surface of the lower roll thereby: alternatively both (or all) loops may be of circular cross-sectional shape.
  • All of the loops may extend across header pulleys or wheels which maintain the loop shapes and lead the loops in converging relationship in feed into the rollers nip.
  • the pulleys or like may be adjustable along their rotational axes to allow the loop positions to be adjusted to suit particular patterns of blanks.
  • the yielding surfaced roller may be of different diameter to the other roller, although geared together for the same peripheral speed, and the axes of the rollers may lie in parallel planes normal to the plane of the blanks in the feed path.
  • addtional loops may be provided which generally encircle the upper roller in the same way as the previously mentioned loops, but which also extend downwardly through and below the feed path, so as to displace these lateral scrap portions out of the plane of feed.
  • FIG. 1 is a diagrammatic elevation showing the prior art arrangement.
  • FIG. 2 is a sectional elevation of apparatus in accordance with the invention, which may be compared with FIG. 1, and is taken on the line 2-2 of FIG. 3.
  • FIG. 3 is a sectional plan view of the apparatus, taken on the line of the feed path, that is on the line 3-3 of FIG. 2;
  • FIG. 4 is a transverse sectional view taken on the line 44 of FIG. 2, but showing the blank further advanced from the position illustrated in FIG. 3;
  • FIG. 5 is a view similar to FIG. 2 but from one lateral side of the apparatus.
  • the conventional apparatus feed blanks l0, 11 through a series of treatment rolls such as those indicated by the reference 12, which serve to provide the pattern of cuts, creases and the like in the blanks 10, 11, and a separate pair of stripper rolls 14, 16 is provided, the lower of the pair being of smaller diameter than the upper one, being provided with a yielding surface layer 18, and being staggered slightly with respect to the upper roll 14.
  • the upper roll is provided with apattem of pins 20, 22 which impinge upon the blank in the areas which are to be displaced out of the feed path so as to separate these areas of scrap material from the blank and displace them downwardly as is indicated by the reference 24 (FIG. 1) whilst the remainder of the blank is fed through the apparatus with the assistance of feed rolls, located in pairs before and after the roll pair 14, 16, these feed rolls being indicated by the reference numberals 26, 28.
  • FIGS. 2 to 5 of the drawings illustrating an embodiment of the present invention, and in particular to FIG. 2 thereof, it will be seen that a similar pair of stripping rolls 14, 16 is provided earring the pattern of pins 20, 22, in association with feed roll means 26, 28.
  • Each of the rolls 14, 16 is generally encircled by a series of side by side, but laterally spaced along the axis of the roll, loops 32, 34 which extend parallel to one another through the nip between the rolls and on either side of the feed path, and are maintained in the loop formation by the feed rolls 26, 28 and by further loop formers 33, 36.
  • FIG. 3 One typical blank is illustrated in FIG. 3 in a position in the nip, and comprises a blank area 40 surrounded by a generally peripheral frame of blank material which represents scrap, indicated by the reference numerals 42, 44, 46, 48.
  • the lower loops 32 may be of circular or V cross-section so as to tend to embed in the yielding surface of the lower roll 16 (if such yielding surface is provided) and the upper loops 34 may be of relaively flat cross-section.
  • loops 32, 34 may be provided as may be required according to the complexities of the blanks being treated, and these are arranged along the roll axes so as to support and feed the blank and to lie on either side of the planes (which planes are normal to the axes of rotation of the rolls) contained by the projections or pins 20 and 22 during their rotational movement with the roll 14.
  • the loops do not interfere with the operation of the pins 20, 22 and permit the same to contact the scrap areas of the blank, but support the blank at lateral positions from the pins in the nip.
  • scrap portions may be deflected out of the plane of the feed path by the pins whilst the remaining area of the blank, being the area, 40, is fed onwards in the feed path.
  • the positions of the loops along the length of the roll axes may be secured by the use of pulleys or the like on ones of the loop forming rolls and shafts 26, 28, 33, 36.
  • additional loops are provided at the lateral extremes of the rolls corresponding to the positions of the side scrap portions 42, 46 and which grip those side portions during the progress of the blank along the feed path.
  • These additional loops 50, 50 extend around the same upper loop formers 26, 33, but around the axis of one of the lower loop formers 36 (but preferably around pulleys freely journalled on the shaft which supports the formers 36, since these loops 50 are travelling in the opposite direction to the loops 34 at that point).
  • the operation of the side loops 50 is to grip the lateral portions 42, 46 which are scrap areas from the original blank and deflect them downwards out of the feed path thus effecting positive separation from these scrap areas.
  • the blank is provided with cuts 52 to separate the areas 42 and 46 from the scrap areas 44 and 48, so that the areas 44 and 48 can be deflected separately by the pins as indicated in FIG. 4.
  • the roll 14 is to be driven in timed synchronism with the feed of the blanks, and enables rapid, efficient and thorough stripping of scrap areas to be performed.
  • Stripping apparatus for use in the production of cardboard and other blanks to remove scrap areas from the blanks, comprising a backup roller having a substantially continuous peripheral surface, and a stripping roller carrying a pattern of projections to register with the scrap areas and displace them out of the plane of each blank, said rollers forming a nip through which the blanks are fed, wherein the improvement comprises a plurality of superimposed pairs of endless conveyor loops, the loops of each pair extending through said nip and also beyond said nip on both sides of said rollers, so as to guide a blank sandwiched between the loops and to prevent the blank from becoming deformed or wrapped around a roller, the pairs of loops being spaced apart to permit operation of the projections therebetween.
  • Stripping apparatus including two additional loops, one encircling each end of the roller carrying said projections, a portion of each such additional loop being arranged to extend through and beyond the plane of the feed path defined by said pairs of conveyor loops to thereby deflect marginal scrap areas of the blanks out of the plane of the feed path.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Making Paper Articles (AREA)
  • Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
US26977772 1971-07-10 1972-07-07 Stripping apparatus as used in the production of cardboard and like blanks Expired - Lifetime US3834291A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3247671A GB1363142A (en) 1971-07-10 1971-07-10 Stripping apparatus as used in the production of cardboard and like blanks

Publications (1)

Publication Number Publication Date
US3834291A true US3834291A (en) 1974-09-10

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ID=10339166

Family Applications (1)

Application Number Title Priority Date Filing Date
US26977772 Expired - Lifetime US3834291A (en) 1971-07-10 1972-07-07 Stripping apparatus as used in the production of cardboard and like blanks

Country Status (3)

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US (1) US3834291A (de)
DE (1) DE2233880C2 (de)
GB (1) GB1363142A (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4305716A (en) * 1980-02-26 1981-12-15 Cincinnati Rotary Press Company Rotary die cutting machine having integral scrap stripper
US5197938A (en) * 1991-10-31 1993-03-30 International Stripping & Die Cutting Corp. Waste remover for die cut blanks
US5806392A (en) * 1994-07-01 1998-09-15 Thomas J. Lipton, Co., Division Of Conopco, Inc. Producing shaped articles
US5890408A (en) * 1993-09-03 1999-04-06 Thomas J. Lipton Co., Division Of Conopco, Inc. Thread removal apparatus for use in the manufacture of infusion packets
US20120053039A1 (en) * 2009-05-13 2012-03-01 Giovanni Compagnone Waste stripping unit with simplified tool adjustment in a packaging production machine
US20210268680A1 (en) * 2014-08-26 2021-09-02 Highcon Systems Ltd. Method and apparatus for substrate stripping

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4656908A (en) * 1984-10-26 1987-04-14 Nabisco Brands, Inc. Apparatus and method for continuously cutting shredded grain product

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1987224A (en) * 1932-10-17 1935-01-08 Bergstein Samuel Method of removing scrap and folding and gluing carton blanks and machine therefor
US2410611A (en) * 1945-05-15 1946-11-05 Verneur E Pratt Feeding apparatus
US3524364A (en) * 1967-02-21 1970-08-18 Deritend Eng Co Apparatus for stripping waste from cardboard and like blanks

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1589879A (de) * 1968-10-23 1970-04-06

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1987224A (en) * 1932-10-17 1935-01-08 Bergstein Samuel Method of removing scrap and folding and gluing carton blanks and machine therefor
US2410611A (en) * 1945-05-15 1946-11-05 Verneur E Pratt Feeding apparatus
US3524364A (en) * 1967-02-21 1970-08-18 Deritend Eng Co Apparatus for stripping waste from cardboard and like blanks

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4305716A (en) * 1980-02-26 1981-12-15 Cincinnati Rotary Press Company Rotary die cutting machine having integral scrap stripper
US5197938A (en) * 1991-10-31 1993-03-30 International Stripping & Die Cutting Corp. Waste remover for die cut blanks
US5890408A (en) * 1993-09-03 1999-04-06 Thomas J. Lipton Co., Division Of Conopco, Inc. Thread removal apparatus for use in the manufacture of infusion packets
US5806392A (en) * 1994-07-01 1998-09-15 Thomas J. Lipton, Co., Division Of Conopco, Inc. Producing shaped articles
US20120053039A1 (en) * 2009-05-13 2012-03-01 Giovanni Compagnone Waste stripping unit with simplified tool adjustment in a packaging production machine
US10245743B2 (en) * 2009-05-13 2019-04-02 Bobst Sa Waste stripping unit with simplified tool adjustment in a packaging production machine
US20210268680A1 (en) * 2014-08-26 2021-09-02 Highcon Systems Ltd. Method and apparatus for substrate stripping
US11780108B2 (en) * 2014-08-26 2023-10-10 Highcon Systems Ltd. Method and apparatus for substrate stripping

Also Published As

Publication number Publication date
GB1363142A (en) 1974-08-14
DE2233880C2 (de) 1983-05-05
DE2233880A1 (de) 1973-01-25

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Owner name: DERITEND ENGINEERING (1983) LIMITED SWANCLOSE HOUS

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

Effective date: 19840918

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