US3807289A - Apparatus and method for folding of tabs in a right angle transfer zone - Google Patents

Apparatus and method for folding of tabs in a right angle transfer zone Download PDF

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Publication number
US3807289A
US3807289A US00257282A US25728272A US3807289A US 3807289 A US3807289 A US 3807289A US 00257282 A US00257282 A US 00257282A US 25728272 A US25728272 A US 25728272A US 3807289 A US3807289 A US 3807289A
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US
United States
Prior art keywords
diagonal
blank
folding
section
blanks
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
US00257282A
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English (en)
Inventor
R Labombarde
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.)
International Paper Box Machine Co Inc
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to US00257282A priority Critical patent/US3807289A/en
Priority to CA156,143A priority patent/CA970614A/en
Priority to GB5310672A priority patent/GB1348447A/en
Priority to IT33085/72A priority patent/IT972490B/it
Priority to FR7300826A priority patent/FR2186882A5/fr
Priority to DE2301172A priority patent/DE2301172C2/de
Priority to JP48008245A priority patent/JPS4949780A/ja
Priority to AU52064/73A priority patent/AU463457B2/en
Application granted granted Critical
Publication of US3807289A publication Critical patent/US3807289A/en
Assigned to INTERNATIONAL PAPER BOX MACHINE CO., INC. , A CORP. OF NH reassignment INTERNATIONAL PAPER BOX MACHINE CO., INC. , A CORP. OF NH ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: LABOMBARDE, RUTH N., NASHUA TRUST COMPANY EXECTORS OF THE ESTATE OF RAYMOND A. LABOMBARDE, DEC'D
Anticipated expiration legal-status Critical
Assigned to GENERAL ELECTRIC CAPITAL CORPORATION reassignment GENERAL ELECTRIC CAPITAL CORPORATION SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: INTERNATIONAL PAPER BOX MACHINE COMPANY, INC.
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/26—Folding sheets, blanks or webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/26—Folding sheets, blanks or webs
    • B31B50/36—Folding sheets, blanks or webs by continuously feeding the sheets, blanks or webs to stationary members, e.g. plates, ploughs or cores
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/26—Folding sheets, blanks or webs
    • B31B70/58—Folding sheets, blanks or webs by moving belts or chains

Definitions

  • Such skips and jams are avoided in this invention by accomplishing the back folding of the diagonal tabs of the trailing flaps in the transfer zone, and in advance of the second flap folding section, rather than accomplishing the diagonal tab fold in the second section.
  • the tips of the resiliently mounted folding hooks are located in the transfer zone, just beyond the exit edge of the transfer zone cover and in the path of the forward edge of oncoming blanks being delivered into the zone by the first flap folding section.
  • the side edge of the hook tip facing the oncoming blanks is tapered, or cammed, to cause the tips to be lifted onto the upper face of each blank, without damage to blank or hook.
  • the tapered tips are aligned to intercept the overfolded diagonal tabs of the blanks, as the blanks advance thereunder and to hook on and backfold the same in cooperation with holddown means including holddown rods and the exit edge of the cover.
  • the sectional stop and guide means includes a plurality of sets of small diameter, smooth faced nip rolls each having a section of a stop plate at the level of the centre thereof so that the section over the overfolded flaps of the blanks may rise accordingly to conform therewith while the other parts of the section serve as a side guide for the adjacent edge of the blank.
  • FIG. 1 is a plan view of the transfer zone portion of a right angular paper box'blank folding machine
  • FIG. 2 is a diagrammatic fragmentary side elevation in section on line 22 of FIG. 6 of the combined stop and side guide means of the invention, showing a blank entering the transfer zone,
  • FIG. 3 is a view similar to FIG. 2 in section on line 3-3 of FIG. 7, showing the blank fully in the transfer zone and starting in the right angular direction,
  • FIG. 4 is a view similar to FIG. 3 in section on line 4-4 of FIG. 8, showing the next succeeding blank sliding under the preceding blank in shingle formation, while the rearward edge of the preceding blank is guided by the stop plate,
  • FIG. 5 is an enlarged fragmentary plan view showing the diagonal tabs of the trailing overfolded flaps of a blank being backfolded while exiting from the transfer zone
  • FIG. 6 is a fragmentary plan view corresponding to FIG. 2 and showing a blank entering the transfer zone with one hook lifted up and riding on the blank;
  • FIG. 7 is a fragmentary plan view corresponding to FIG. 3 and showing the blank fully in the transfer zone, with both hooks lifted up and riding thereon and the blank-moving transversely toward the second section,
  • FIG. 8 is a plan view corresponding with FIG. 4 and showing a succeeding blank sliding under the transversely'moving preceding blank, showing the hooks backfolding the tabs and showing the sectional nip rolls and guide plates lifting to accommodate the folded flaps;
  • FIGS. 9, 10 and 11 are fragmentary, side elevations from the exit end of the transfer zone showing the tapered tips of the folding hooks being cammed upwardly by the oncoming blanks in FIG. 9 riding thereon in FIG. 10 and backfolding'the tabs thereof in FIG. 11,
  • FIG. 12 is a perspective, view showing the tapered tip end of a folding finger of the invention.
  • FIG. 13 is a diagrammatic perspective view of the transfer zone of the machine illustrating the plurality of individual sections of nip roll, stop plate elements.
  • 35 is a known type of right angular, untimed, paper box blank folding machine having a frame 36, a first flap folding section 37, a second flap folding section 38 at right angles to the first section and a transfer zone 39 at the junction of the first and second section.
  • the first flap folding section 37 includes a conventional untimed blank magazine 41 for feeding flat paper box blanks 42 from a stack thereof, individually and successively along the paper line 43 of the first section 37, the blanks being spaced apart by a gap 44.
  • Suitable upper and lower belt carriers are provided in the first section 37 for advancing the blanks 42 along the paper line 43, and suitable blank folding mechanism 46, such as fold belts, is provided in the first section to overfold the side flaps 47 and the tabs 48 and 459 on the end flaps 51 and 52,
  • hooks, plows, fold belts and the like can easily overfold most flaps and tabs of flat box blanks but to fold both side flaps 47 and 46 inwardly and fold the tabs 61,62, 63 and 64 thereon outwardly, while the blanks are advancing through the machine has always been a difficult folding accomplishment in the art.
  • the right angular blank transfer zone 39 at the junction of the first flap folding section the overfolded side edge 55 of the blanks is termed the trailing edge
  • the overfolded flaps 47, 48 and 49 are termed the trailing flaps
  • -the unfolded flat flaps 56, 57 and 58 are termedthe leading flaps
  • the edge 79 is termed the leading edge, because the transfer mechanism 78 automatically flips each successive blank 42 transversely at right angles to the first section 37, when released thereby, so that the leading edge portion 79 is gripped in the entrance nip, or throat, 81 of the upper and lower belt carriers 82 and 83 of the second flap folding'section 38 (FIG.
  • each tip 87 is tapered, beveled, curved or otherwise provided with an inclined surface whereby the oncoming forward edges 53 cam, or lift the tips 87 upwardly out of the path to ride on the upper face 94 of the blank as it enters the transfer zone.
  • Holddown means 90 is provided including the exit edge 75 of cover 73 and a plurality of holddown rods 95, the rods 95 being mounted on support rod 89 for set screw adjustment rotatably and slidably thereon and having tips 96, atthe level of paper line 43, for holding
  • the diagonal tab, back-folding means 84 of the in- I vention' is located in the transfer zone 39, rather than in the second flap folding section 38, thereby reducing the floor space required by the second section to complete the folding of the blanks.
  • Means 84 includes folding hook means 85, which preferably comprise a plurality of flexible resilient, yieldable folding hook such as 86, each having a downturned tip 87 and having a spring biased base end structure 88, rotatably and slidablymounted by set screw brackets on the support rod 89 (FIG. 5).
  • the support rod 89 is mounted in slide elements-91 which in turn are slidably adjustable in tracks 92 so that the hook tips 87 may be aligned in the path of the forward edges 53 of the oncoming blanks 42 within zone 39, just beyond the exit edge 75 of cover 73 and just in advance of the entrance throat 81 of the second section 38.
  • hooks 86 Since the hooks 86 are in the transfer zone, they would be struck by theincoming blanks for the damage of both blank and hook, except for the novel feature.
  • the holddown means assures that the tabs 61 and 62 will first bow, and then fold exactly on the diagonal fold lines such as 65 and 66 thereby assuring a commercially acceptable folded carton.
  • Suitable adjustable folding bars, or plows 97 are mounted in the path of the upfolded diagonal tabs 61 and 62 to complete the back folding thereof and to retain the tabs in overfolded condition in the second flap folding section.
  • the combined stop and edge guide means 98 of the invention includes a single, elongated, driven lower nip roll 99 opposed by a plurality of individual sets of combined rolls and stop plates such as 101, each set forming a pressure nip 102 with the lower roll, but being resiliently yieldable to conform to theoverfolded flaps 47, 48, 49 of blanks 42 as the blanks pass therethrough.
  • Each set 101 includes a plurality of small diameter smooth faced bearings, discs or rolls 103 having agenerally horizontal stop plate 104 at the level of the centre 105 of the rolls and mounted by suitable spring means 106 to yield upwardly to pass an overfolded flap.
  • a roll 107 is positioned to raise the trailing portion of each successive blank 42, discharged from nip 102, upwardly until it is stopped by the set of plates 104 with its rearward edge 54' at the level of the centre of the smooth faced rolls v103.
  • the transfer mechanism 78 As the blank 42is then moved transversely by the transfer mechanism 78, its then side edges are guided by the face of the rolls and the stop bar 77 for accurate control until the blank is gripped by the second flap folding section. Because the trailing portion of each blank has been lifted up against the stop plates 104, the next succeeding blank can be slid under it and can be entering the transfer zone while the preceding blank is leaving transversely and having the diagonal tabs thereon backfolded while still in the transfer zone.
  • tips 96 of the holddown rods are bent at 108 so that the forward edges 53 of the oncoming blanks 42 will not crumple against a barrier, but will be deflected harmlessly under the tips as they are advanced into the transfer zone.
  • a right angular paper box blank folding machine of the type having a first flap folding section, a second flap folding section at right angles to said first section, a blank transfer zone at the junction of said sections, a holddown cover and blank transfer mechanism in said transfer zone and folding mechanism in said first section delivering each successive blank into said transfer zone'with the diagonal tab carrying flaps thereof overfolded on a fold line engaged by said transfer mechanism and held down by said cover the combination of:
  • diagonal tab back folding means at the exit of said transfer zone, and at the entrance nip of the carrier belts of said second flap folding section including hook means permitting the passage thereunder of each successive blank delivered into said zone by said first section; for permitting the passage of the unfolded leading edge thereof into said second flap folding section and for intercepting and backfolding the diagonal tabs on the overfolded trailing flaps of said blanks while the remainder of the said trailing flaps are held down.
  • the hook means of said diagonal tab back folding means comprises a plurality of spring biased hooks mounted above the path of said blanks in said transfer zone with the tips thereof extending downwardly to engage said blanks at a spaced distance inside the leading unfolded edge thereof and just beyond the adjacent exit edge of said cover;
  • the hook means of said diagonal tab backfolding means comprises a plurality of spring pressed folding hooks each in the path of a diagonal tab on a trailing overfolded flap of said blanks, and each having'a tip with at least one side edge thereof tapered to permit each blank approaching from that sidewise direction to pass thereunder without breakage while lifting the, hook to ride 'on the blank.
  • the hook means of said diagonal tab backfolding means comprises a plurality of spring biased flexible folding hooks, each with a tapered tip in the path of each oncoming blank delivered into said zone and adapted to ride thereon ready to intercept and backfoldsaid diagonal tabs, each hook having a base end rotatably and slidably mounted on a support rod carried by said cover, and said support rod being movably mounted on said cover;
  • tapered tips of said hooks may be aligned along the edge of said cover in the path of the diagonal tabs of blanks of various dimensions.
  • said means comprising a plurality of individually yieldable, resiliently mounted sections each including a set of upper, small diameter, smooth faced rolls for forming a nip with an elongated driven lower roll and each including a generally horizontal stop plate at the level of the centre of the smooth face of said small diameter rolls,
  • said plate and rolls may serve as an edge guide as said blanks are moved transversely in said transfer zone, and said individual roll and plate sections may accommodate themselves to the thickness of the overfolded blanks passing thereunder.
  • An untimed, right angular, paper box blank, folding machine having a first, flap folding section, a second, flap folding section at right angles to said first section and a blank transfer zone at the junction of said sections, said machine characterized by:
  • holddown means extending over saidtransfer zone for holding down the trailing, overfolded, diagonal, tab flaps of each successive blank received in said zone while said blanks are advanced with leading flaps unfolded out of said zone into said second section;
  • said diagonal tab backfolding hook means comprises a plurality of resilient, yieldable hooks each having I a tip in the path of a diagonal tab and each tip having at least one side edge tapered to permit a sidewise approaching blank to lift the same without damage to ride on the upper face of the blank.
  • said holddown means includes a cover having an exit edge spaced from the entrance of the carrier belt nips of said second section and in parallelism therewith, and said hook means includes a plurality of folding hooks each having a tapered tip in the path of a diagonal tab of said trailing flaps and operably located just beyond said exit edge of said cover;
  • said holddown means includes a cover extending over said transfer zone having an exit edge
  • said hook means comprises a plurality of resilient folding hooks mounted on said cover, each having a tapered tip operable on said blanks just beyond said exit edge
  • said holdown means includes holddown rods mounted on said cover to extend beyond said exit edge alongside the tapered tips of said hook means.
  • said diagonal tab back folding means includes a plurality of yieldable, resiliently mounted folding hooks each having a hooked tip with a tapered side edge for permitting sidewise passage of blanks thereunder and includes a plurality of folding bars, mounted in said second section and cooperable with said tapered hook tips to complete the overfolding of diagonal tabs advancing thereunder.

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  • Making Paper Articles (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
US00257282A 1972-05-26 1972-05-26 Apparatus and method for folding of tabs in a right angle transfer zone Expired - Lifetime US3807289A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
US00257282A US3807289A (en) 1972-05-26 1972-05-26 Apparatus and method for folding of tabs in a right angle transfer zone
CA156,143A CA970614A (en) 1972-05-26 1972-11-10 Apparatus and method for folding of tabs in a right angle transfer zone
GB5310672A GB1348447A (en) 1972-05-26 1972-11-17 Box blank folding machines
IT33085/72A IT972490B (it) 1972-05-26 1972-12-18 Apparecchiatura e procedimento per piegare linguette in una zona di trasferimento ad angolo retto
FR7300826A FR2186882A5 (show.php) 1972-05-26 1973-01-11
DE2301172A DE2301172C2 (de) 1972-05-26 1973-01-11 Faltmaschine
JP48008245A JPS4949780A (show.php) 1972-05-26 1973-01-18
AU52064/73A AU463457B2 (en) 1972-05-26 1973-02-12 Apparatus and method for folding of tabs in a right angle transfer zone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00257282A US3807289A (en) 1972-05-26 1972-05-26 Apparatus and method for folding of tabs in a right angle transfer zone

Publications (1)

Publication Number Publication Date
US3807289A true US3807289A (en) 1974-04-30

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Family Applications (1)

Application Number Title Priority Date Filing Date
US00257282A Expired - Lifetime US3807289A (en) 1972-05-26 1972-05-26 Apparatus and method for folding of tabs in a right angle transfer zone

Country Status (8)

Country Link
US (1) US3807289A (show.php)
JP (1) JPS4949780A (show.php)
AU (1) AU463457B2 (show.php)
CA (1) CA970614A (show.php)
DE (1) DE2301172C2 (show.php)
FR (1) FR2186882A5 (show.php)
GB (1) GB1348447A (show.php)
IT (1) IT972490B (show.php)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4614512A (en) * 1982-02-04 1986-09-30 S. A. Martin Sheet folding machine
US5259825A (en) * 1990-06-01 1993-11-09 Universal Ribo S.R.L. Machine for folding and glueing the flaps of a coating paper to cardboard
US5316537A (en) * 1991-02-26 1994-05-31 G. D Societa' Per Azioni Method and device for bending the end tabs of blanks for producing rigid flip-top cigarette packets
US20060178248A1 (en) * 2005-01-28 2006-08-10 Gerard Coullery Device for maintaining side tabs of box blanks running through a folder-gluer

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108423375B (zh) * 2018-03-28 2021-01-15 海宁市泰得印刷有限公司 包装盒输送装置中输送带的定位组件

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2879699A (en) * 1957-02-26 1959-03-31 Raymond A Labombarde Folding apparatus for leading flaps
US3111885A (en) * 1960-08-22 1963-11-26 Nicholas J Perrelli Untimed method of and apparatus for making cartons
US3604316A (en) * 1970-03-02 1971-09-14 Raymond A Labombarde Untimed mechanical transfer means for right angle folding machines
US3716962A (en) * 1970-12-18 1973-02-20 American Can Co Carton flap folding mechanism

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3055276A (en) * 1960-11-21 1962-09-25 Thomas L Millich Sheet folding apparatus and method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2879699A (en) * 1957-02-26 1959-03-31 Raymond A Labombarde Folding apparatus for leading flaps
US3111885A (en) * 1960-08-22 1963-11-26 Nicholas J Perrelli Untimed method of and apparatus for making cartons
US3604316A (en) * 1970-03-02 1971-09-14 Raymond A Labombarde Untimed mechanical transfer means for right angle folding machines
US3716962A (en) * 1970-12-18 1973-02-20 American Can Co Carton flap folding mechanism

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4614512A (en) * 1982-02-04 1986-09-30 S. A. Martin Sheet folding machine
US5259825A (en) * 1990-06-01 1993-11-09 Universal Ribo S.R.L. Machine for folding and glueing the flaps of a coating paper to cardboard
US5316537A (en) * 1991-02-26 1994-05-31 G. D Societa' Per Azioni Method and device for bending the end tabs of blanks for producing rigid flip-top cigarette packets
US20060178248A1 (en) * 2005-01-28 2006-08-10 Gerard Coullery Device for maintaining side tabs of box blanks running through a folder-gluer
US7637857B2 (en) * 2005-01-28 2009-12-29 Bobst, S.A. Device for maintaining side tabs of box blanks running through a folder-gluer

Also Published As

Publication number Publication date
JPS4949780A (show.php) 1974-05-14
CA970614A (en) 1975-07-08
DE2301172C2 (de) 1984-09-27
DE2301172A1 (de) 1974-01-24
IT972490B (it) 1974-05-20
GB1348447A (en) 1974-03-20
AU5206473A (en) 1974-08-15
AU463457B2 (en) 1975-07-24
FR2186882A5 (show.php) 1974-01-11

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Legal Events

Date Code Title Description
AS Assignment

Owner name: INTERNATIONAL PAPER BOX MACHINE CO., INC. 90 NORTH

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNORS:LABOMBARDE, RUTH N.;NASHUA TRUST COMPANY EXECTORS OF THE ESTATE OF RAYMOND A. LABOMBARDE, DEC D;REEL/FRAME:004725/0503

Effective date: 19861223

AS Assignment

Owner name: GENERAL ELECTRIC CAPITAL CORPORATION, CONNECTICUT

Free format text: SECURITY INTEREST;ASSIGNOR:INTERNATIONAL PAPER BOX MACHINE COMPANY, INC.;REEL/FRAME:009297/0118

Effective date: 19980331