US3529515A - Folding apparatus for a cardboard blank - Google Patents

Folding apparatus for a cardboard blank Download PDF

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Publication number
US3529515A
US3529515A US728557A US3529515DA US3529515A US 3529515 A US3529515 A US 3529515A US 728557 A US728557 A US 728557A US 3529515D A US3529515D A US 3529515DA US 3529515 A US3529515 A US 3529515A
Authority
US
United States
Prior art keywords
blank
flap
folding
edge
folded
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
US728557A
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English (en)
Inventor
Pierre Lang
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.)
Bobst Mex SA
Original Assignee
J Bobst et Fils SA
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 J Bobst et Fils SA filed Critical J Bobst et Fils SA
Application granted granted Critical
Publication of US3529515A publication Critical patent/US3529515A/en
Anticipated expiration legal-status Critical
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
    • B31B50/262—Folding sheets, blanks or webs involving folding, leading, or trailing flaps of blanks
    • 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
    • B31B50/52—Folding sheets, blanks or webs by reciprocating or oscillating members, e.g. fingers
    • B31B50/54—Folding sheets, blanks or webs by reciprocating or oscillating members, e.g. fingers operating on moving material
    • 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
    • B31B50/585—Folding sheets, blanks or webs by air jets

Definitions

  • ABSTRACT A device for folding a rearwardly extending flap at an edge of a blank onto the blank as the blank is being advanced, wherein there is provided a member which engages another portion of the blank as the flap is being folded to hold the edge of the blank in position while the flap is being folded.
  • the invention generally relates to apparatus and methods for folding a portion of a foldable piece of material.
  • the invention relates to methods and apparatus for folding a rearwardly extending flap at and along a lateral edge of an advancing blank through approximately l 80 forwardly onto the blank.
  • An object of the invention is to provide methods and apparatus which will overcome the above deficiency by restraining the lifting or raising of the portion of the blank adjacent the edge which will be formed by the folded flapand blank while permitting the folding of the flap.
  • the blank is advanced in a longitudinal forward direction with a flap extending rearwards at an edge of the blank and while so moving the flap is acted on by a folding means such as a pivotal lever or air jet which causes theflap to fold forwardly about 180 about a fold line to a position above the portion of the blank to which the flap is attached.
  • a folding means such as a pivotal lever or air jet which causes theflap to fold forwardly about 180 about a fold line to a position above the portion of the blank to which the flap is attached.
  • FIG. 1 is a plan view of a known arrangement for advancement of a blank
  • FIG. 2 is a perspective view of a portion of the rear of a blank showing the folding of a flap at a lateral edge of the blank according to the prior art and illustrating how the unrestrained blank is raised or lifted when the flap is being folded;
  • FIG. 3 is a view having a perspective similar to FIG. 2 but showing the arrangement according to the present invention.
  • FIG. 4 is an elevational side view of the arrangement of the present invention shown in FIG. 3.
  • FIG. 1 there is shown a blank piece of material 1 having three rearward extending flaps 2. 3. 4 which are to be folded forwardly onto the main portion of the blank.
  • the blank many times is constituted of a foldable material such as cardboard or the like.
  • the flap 2 is centrally located along the rear folded edge portion of the blank and the flaps 3 and 4 are located along the folded edge adjacent the lateral edges and on opposite sides of the central flap 2.
  • a greater number of flaps may be provided but there will always be at least one flap located at a lateral edge.
  • Many different objects. e. boxes may be formed of the blank I and this determined the number of flaps.
  • the blank 1 is advanced in the direction of arrow 5 by pairs of conveyor means 6 and 7 respectively which means may include belts or rollers contacting opposite surfaces of the blank.
  • the conveyor means v6. 7 are provided in the region of lateral flaps 3 and 4 to hold them while the flap 2 is being folded onto the remainder of the blank about the fold line 2a until it assumes a position as shown at 2'.
  • the conveyors 6 and 7 hold the blank I taut and flatduring the operation of the folding of flap 2 onto the remainder of the blank.
  • the present invention seeks to obviate this drawback of the deforming or raising of the blank when the flaps at the lateral edges are fold'edr
  • FIG. 3 the blank 2L being advanced by conveyor 28, the flap 22 having been already folded to assume a position as shown at 22'.
  • the blank 21 is supported on the auxiliary lateral conveying belt; 10.
  • a pivotal lever 11 which moves inthe direction of arrow I2 here shown movingcounterclockwise acts on flap 24 to raise the same about a fold line 24a and then fold the flap downwards onto the remainder of the blank.
  • a support stem 13 which is adjustably supported from a fixed frame in a well known manner.
  • a block 14 is mounted on stem 13, which block supports a bearing in which is mounted a rotatable memberhaving opposite arms l5, 16.
  • the rotatable member is driven in the direction of arrow 17 by the shaft 18 which may be rigid or flexible.
  • the drive shaft 18 is flexible to enable ready adjustment of the position of stem 13 and in turn to enable adjustment of the position of block 14 and arms I5, 16 of the rotatable member.
  • the position of block 14 is such that the arms 15, 16 describe a circular are which is restricted to the region 2l"-of the blank proximate the lateral edge thereof.
  • the arms l5. l6 rotate in a plane which is immediately above the fold line of flap 24.
  • the plane of rotation of the arms 15, 16 is inclined slightly downwards with respect to the plane of the blank.
  • the arrangement is such that as the flap 24 is being folded by the lever 11, the arm 15 or 16 is in contact with the blank in the region just ahead of the fold line 24a to hold the edge of the blank in its plane and preventing raising thereof.
  • the path of the rotatable member insures that arm 15 or 16 will remain in contact with the blank as the blank is being advanced until the flap 24 has been folded through a sufficient angle so that there is no longer any tendency for the edge of the blank to be raised.
  • the arms 15, 16 are constituted as elastic blade members to cause them to apply pressure on the blank to impede raising of the edge of the blank during folding of flap 24.
  • the operation of the rotatable member is synchronized with the pivotal lever I1 and the advancing blank 21 so that the contact of the arm 15 or 16 with the blank will be made before the flap 24 has been lifted and will remain in contact with the blank adjacent the flap until the lever 11 no longer tends to raise the edge of the blank.
  • the positioning of the rotatable member is of substantial importance and hence the adjustability of stem 13.
  • a rotatable member with opposite arms 15 and 16 has been shown. obviously a single arm is sufficient. or three or more arms can be employed. Of course. the rotation speed of the rotatable member is adjusted to the number of arms and the speed of the blank.
  • a second rotatable member 14 as shown in dotted lines similar to that already described will be placed at the other side of the central conveyor 28. ln such case the rotatable members may be connected by a flexible drive element 19 shown in dotted lines whereby the drive at shaft 18 will be sufficient to drive the two rotatable members in appropriate directions.
  • the flexible element l9 makes it possible to adjust the spaced positions of the rotatable members to accommodate blanks of different widths. lengths and configurations.
  • An apparatus for folding a flap portion about an edge of a moving, generally coplanar blank comprising a conveyor means adapted to advance in a longitudinal direction a generally planar blank of material having at least one initially generally coplanar flap portion extending outwardly along a line of fold which will be at an edge of said blank when said flap is folded and which blank and flap portion each have generally coplanar opposite first and second planar surfaces. folding means for acting on said first surface of said flap portion of the advancing blank to rotate the flap portion about said fold line and out of the plane of the blank.
  • said restraining means for holding the edge of the blank in position while the flap is being folded comprising an elongated rotatable arm member which rotates in a plane and contacts the blank in the region of said fold line as said blank is moving, said plane of rotation of the rotatable member being inclined with respect to the plane of the blank to exert forces on the blank to resist any tendency of the blank to be raised.
  • each of said arm members is a resiliently flexible blade and each rotates in a common plane.
  • An apparatus comprising a pivotal member which contacts the flap to fold the same out of the plane of said blank.
  • said folding means being provided in a number to correspond in a manner and position'to the number of flaps extending outwardly along lines of fold on a blank and wherein said restraining means is provided in a number for holding the blank in the region of each of said fold lines.
  • said number of folding means and restraining means comprises one of each disposed on opposite sides of said conveyor means so as to act on flaps adjacent a lateral edge of said blank.
  • Apparatus for folding an outwardly extending generally coplanar longitudinally flap at an edge of a blank out of the plane of the blank as the latter is being advanced longitudinally comprising conveyor means for longitudinally advancing a blank of material having opposite surfaces and a longitudinal flap extending from a rear portion of the blank adjacent a lateral edge thereof, folding means for acting on the flap of the advancing blank to fold the same about a fold line forwardly out of the plane of said blank, and restraining means synchronized with said folding means and said conveyor means to contact the blank in the region of the fold line as said blank is advancing.
  • said restraining means acting in cooperation with said folding means as the flap is being folded to contact the blank on the surface thereof opposite that engaged by said folding means in the region of said fold line and exert pressure on said blank proximate said edge to hold the edge in position as the flaps are being folded, said restraining means comprising an elongated rotatable arm member which rotates in a plane of rotation which is incline with respect to the plane of the blank.

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  • Making Paper Articles (AREA)
US728557A 1967-05-24 1968-05-13 Folding apparatus for a cardboard blank Expired - Lifetime US3529515A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH741667A CH457114A (fr) 1967-05-24 1967-05-24 Machine plieuse de découpes de carton

Publications (1)

Publication Number Publication Date
US3529515A true US3529515A (en) 1970-09-22

Family

ID=4324786

Family Applications (1)

Application Number Title Priority Date Filing Date
US728557A Expired - Lifetime US3529515A (en) 1967-05-24 1968-05-13 Folding apparatus for a cardboard blank

Country Status (5)

Country Link
US (1) US3529515A (fr)
CH (1) CH457114A (fr)
DE (1) DE1611613B1 (fr)
FR (1) FR1558057A (fr)
GB (1) GB1173406A (fr)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3654842A (en) * 1969-10-13 1972-04-11 Int Paper Co Method of making side seam sealed container
US4904382A (en) * 1987-11-23 1990-02-27 Everpure, Inc. Filter cartridge security for locking between operating and non-operating positions
US6360764B1 (en) 2000-07-18 2002-03-26 Pentapure Incorporated Cartridge adapter
US6649056B2 (en) 2000-03-22 2003-11-18 Pentapure Incorporated Filter assembly
US20050023206A1 (en) * 2003-07-29 2005-02-03 Karl Fritze Water filter adapter with locking feature
US20050067342A1 (en) * 2000-04-20 2005-03-31 Bassett Laurence W. Rotary valve assembly for fluid filtration system
US20050252841A1 (en) * 2000-04-20 2005-11-17 Bassett Laurence W Keyed filter assembly
US20060178248A1 (en) * 2005-01-28 2006-08-10 Gerard Coullery Device for maintaining side tabs of box blanks running through a folder-gluer
US7294262B2 (en) 2003-08-27 2007-11-13 Sta-Rite Industries, Llc Modular fluid treatment apparatus
US20090020470A1 (en) * 2000-04-20 2009-01-22 Bassett Laurence W Keyed filter assembly
US7673756B2 (en) 2005-06-29 2010-03-09 Selecto, Inc. Modular fluid purification system and components thereof
US9782706B1 (en) 2008-04-16 2017-10-10 Selecto, Inc. Flow connector for connecting screw-type filtration head to lug-type sump
ITUA20162711A1 (it) * 2016-04-19 2017-10-19 Igb Srl Dispositivo, impianto e procedimento di piegatura

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100515751C (zh) * 2006-07-19 2009-07-22 广州市万世德包装机械有限公司 一种直线传动式纸箱成型机

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3654842A (en) * 1969-10-13 1972-04-11 Int Paper Co Method of making side seam sealed container
US4904382A (en) * 1987-11-23 1990-02-27 Everpure, Inc. Filter cartridge security for locking between operating and non-operating positions
US6649056B2 (en) 2000-03-22 2003-11-18 Pentapure Incorporated Filter assembly
US6953526B1 (en) 2000-03-22 2005-10-11 Cuno Incorporated Filter assembly
US20110005988A1 (en) * 2000-04-20 2011-01-13 3M Innovative Properties Company Keyed filter assembly
US20050067342A1 (en) * 2000-04-20 2005-03-31 Bassett Laurence W. Rotary valve assembly for fluid filtration system
US20050252841A1 (en) * 2000-04-20 2005-11-17 Bassett Laurence W Keyed filter assembly
US7763170B2 (en) 2000-04-20 2010-07-27 3M Innovative Properties Company Keyed filter assembly
US20100288687A1 (en) * 2000-04-20 2010-11-18 3M Innovative Properties Company Keyed filter assembly
US7407148B2 (en) 2000-04-20 2008-08-05 3M Innovative Properties Company Rotary valve assembly for fluid filtration system
US20090020470A1 (en) * 2000-04-20 2009-01-22 Bassett Laurence W Keyed filter assembly
US6426001B1 (en) 2000-07-18 2002-07-30 Pentapure Incorporated Cartridge adapter
US6360764B1 (en) 2000-07-18 2002-03-26 Pentapure Incorporated Cartridge adapter
US20050023206A1 (en) * 2003-07-29 2005-02-03 Karl Fritze Water filter adapter with locking feature
US7294262B2 (en) 2003-08-27 2007-11-13 Sta-Rite Industries, Llc Modular fluid treatment apparatus
US7637857B2 (en) * 2005-01-28 2009-12-29 Bobst, S.A. Device for maintaining side tabs of box blanks running through a folder-gluer
US20060178248A1 (en) * 2005-01-28 2006-08-10 Gerard Coullery Device for maintaining side tabs of box blanks running through a folder-gluer
US7673756B2 (en) 2005-06-29 2010-03-09 Selecto, Inc. Modular fluid purification system and components thereof
US9782706B1 (en) 2008-04-16 2017-10-10 Selecto, Inc. Flow connector for connecting screw-type filtration head to lug-type sump
ITUA20162711A1 (it) * 2016-04-19 2017-10-19 Igb Srl Dispositivo, impianto e procedimento di piegatura
WO2017182901A1 (fr) * 2016-04-19 2017-10-26 I.G.B. S.R.L. Dispositif de pliage, installation de pliage et procédé de pliage

Also Published As

Publication number Publication date
CH457114A (fr) 1968-05-31
GB1173406A (en) 1969-12-10
FR1558057A (fr) 1969-02-21
DE1611613B1 (de) 1971-05-13

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