US3198512A - Folding machines for pre-punched cardboard pieces - Google Patents

Folding machines for pre-punched cardboard pieces Download PDF

Info

Publication number
US3198512A
US3198512A US313873A US31387363A US3198512A US 3198512 A US3198512 A US 3198512A US 313873 A US313873 A US 313873A US 31387363 A US31387363 A US 31387363A US 3198512 A US3198512 A US 3198512A
Authority
US
United States
Prior art keywords
flap
blank
folding
conveyed
plane
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
US313873A
Other languages
English (en)
Inventor
Frei Arthur
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.)
J BOBST
SON SA
Original Assignee
SON 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 SON SA filed Critical SON SA
Application granted granted Critical
Publication of US3198512A publication Critical patent/US3198512A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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

Definitions

  • This invention relates to machines for folding preformed cardboard blanks into boxes.
  • folding machines and combination folding-glueing machines are utilized to carry out more or less automatically the folding or preformed pieces into boxes.
  • the folding concerns more particularly the folding down of so-called assembling flaps or glueing flaps.
  • flaps Inrelation to the conveying direction of the cardboard pieces in such machines, such flaps are generally located in the front or at the sides and their folding down is effected by suitable guides, stops or compressed air jets in the course of transport of the pieces by conveying bands or belts. It also becomes necessary to fold or fold down not only front flap elements preceding the piece to which they are attached, but rear flap elements as well. This is the case for pieces destined for being formed as boxes with so-called automatic bottoms or double automatic bottoms.
  • the machine according to the present invention aims at allowing the folding of the rear or posterior flap elements, following the piece to which they are attached and onto one face of which they are to be folded down.
  • FIG. 1 is an elevational view diagrammatically illustrating the begining of the folding process of a posterior flap of a cardboard piece.
  • FIG. 2 is a similar view schematically showing the main elements in the course of folding the said flap.
  • FIG. 3 is a view similar to that of FIG. 2, but at the completion of the folding.
  • the piece 1 to be folded advances through the machine in the direction of the arrow 2 along the plane of the conveying device 3, constituted for instance by conveying belts running on guiding pulleys such as 4.
  • the device is concerned with the folding down on the piece 1 of its rear or posterior flap 7 during the proper conveyance of the piece 1.
  • a driving assembly in which a pulley 10 is supported by a shaft 9 for driving an endless belt 11 running over a second pulley 12.
  • the belt 11 has a lower 3,198,512 Patented Aug. 3, 1965 ice reach located adjacent the plane 3 and is driven in the direction of the advancing piece 1;
  • a bar 13 is interposed between the pulleys and keeps them at a suitable distance,
  • a rod 14 projects from the bar 13 beyond the pulley 10 in the general direction of advancement of the pieces.
  • the pulley 10 is rotatively integral with a pulley 15 driven by a power pulley 16 through the transmission belt 17.
  • the outside face of the endless conveying belt 11 is provided with surface irregularities 18, in the form of teeth.
  • the pulleys 10 and 16 are rotated in the direction indicated by the arrows and, the strand of the belt 11 near the conveying device 3 at the moment of coming into contact with the conveyed pieces is practically parallel to the plane of the conveying device 3.
  • the linear speed of travel of the belt 11 is greater than that of the conveying device such that the following operation takes place.
  • the piece 1 arriving'under the belt 11 which is advancing at a greater linear speed, is engaged at the upper surface of the flap 7 by the teeth of the belt which tend to raise the flap.
  • the flap 7 is raised to 7', its free edge having been driven more rapidly than the piece 1. Swinging around 9, the belt 11 and the pulley 12 will have on their turn passed to positions 11 and 12'.
  • the pressure thus exerted by the unbalanced weight of the driving assembly should be limited, preferably regulable, so as to insure correct operation without risking bending or crushing of the flap 7.
  • the rod 14 there is provided on the rod 14 an adjustable counterweight 19, which is secured by the screw 20.
  • the rod also supports an adjustable stop-screw 21, which contacts the bar 6 and thus makes it possible to fix with great accuracy the lower resting position of the assembly formed by the belt 11 and the pulley 12.
  • the driving direction of the pulley It helps to increase the propensity of the belt 11 to be applied against the piece to be processed.
  • Apparatus for folding into the plane of an advancing blank, a rearwardly extending flap which is foldably connected to the blank and initially extends slightly upwardly with respect thereto comprising means for supporting and advancing a blank thereon with the flap extending rearwardly and upwardly, means including a conveyed element advancing in the same direction as the blank at a faster speed thereof and having an elongated surface spaced from the blank less than the upward extension of the flap for engaging the flap to pivotally fold the same.
  • Apparatus for folding into the plane of an advancing blank, a rearwardly extending flap which is foldably connected to the blank and initially extends slightly upwardly with respect thereto comprising a conveyor device for supporting and advancing a blank thereon with the flap extending rearwardly and upwardly, a driving assembly located adjacent the conveyor device and including a driven belt having a component of speed in the direction of advancement of the blank which is greater than the speed of advancement of th eblank, and means pivotably supporting the driving assembly in an initial position in which said driven belt is spaced from the conveyor device less than the amount of upward extension of the flap such that the belt engages the flap and exerts a force thereon to pivotally raise the flap, said driving assembly having a magnitude of unbalanced weight which urges the driving assembly to its initial position, the fiap having suificient stiffness to overcome the unbalanced Weight of the driving assembly and cause the driving assembly itself to be pivotally moved by the flap as the flap is raised, said driving assembly returning to the initial position thereof under its own
  • Apparatus as claimed in claim 4 comprising teeth on said driven belt to provide said irregularities.
  • said driving assembly comprises a connected pair of spaced pulleys, one of which is driven, the belt passing around said pulleys, said means which pivotably supports the driving assembly including means which pivotably supports the driven pulley such that the driving assembly undergoes pivotal movement about an axis passing through the driven pulley.
  • said driving assembly comprises an adjustable counterweight supported on a side of the driven pulley opposite the other of the pulleys to adjust the magnitude of unbalanced weight of the driving assembly.
  • said driving assembly comprises a stop element for limiting the degree of pivotaly movement of the driving assembly about said axis through the driven pulley to establish said initial position.

Landscapes

  • Making Paper Articles (AREA)
US313873A 1962-10-16 1963-10-04 Folding machines for pre-punched cardboard pieces Expired - Lifetime US3198512A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1223662A CH379250A (fr) 1962-10-16 1962-10-16 Machine plieuse pour pièces de carton prédécoupées

Publications (1)

Publication Number Publication Date
US3198512A true US3198512A (en) 1965-08-03

Family

ID=4381144

Family Applications (1)

Application Number Title Priority Date Filing Date
US313873A Expired - Lifetime US3198512A (en) 1962-10-16 1963-10-04 Folding machines for pre-punched cardboard pieces

Country Status (5)

Country Link
US (1) US3198512A (fr)
CH (1) CH379250A (fr)
FR (1) FR1363690A (fr)
GB (1) GB1034378A (fr)
SE (1) SE300751B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4490960A (en) * 1980-07-25 1985-01-01 Doboy Packaging Machinery, Inc. Apparatus and method for closing reclosable bags

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH666858A5 (fr) * 1986-04-18 1988-08-31 Bobst Sa Dispositif de pliage et de maintien des pattes d'une decoupe de boite.

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2770475A (en) * 1951-10-01 1956-11-13 Arthur W Rafferty Rotative swing joint coupling with replaceable bushing
US2902810A (en) * 1957-09-27 1959-09-08 King Sales & Eugineering Co Straight line caser and method
US2971443A (en) * 1958-11-03 1961-02-14 Fibreboard Paper Products Corp Machine for closing carton lids
US3110488A (en) * 1961-01-10 1963-11-12 Smith Kline French Lab Folding machine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2770475A (en) * 1951-10-01 1956-11-13 Arthur W Rafferty Rotative swing joint coupling with replaceable bushing
US2902810A (en) * 1957-09-27 1959-09-08 King Sales & Eugineering Co Straight line caser and method
US2971443A (en) * 1958-11-03 1961-02-14 Fibreboard Paper Products Corp Machine for closing carton lids
US3110488A (en) * 1961-01-10 1963-11-12 Smith Kline French Lab Folding machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4490960A (en) * 1980-07-25 1985-01-01 Doboy Packaging Machinery, Inc. Apparatus and method for closing reclosable bags

Also Published As

Publication number Publication date
GB1034378A (en) 1966-06-29
CH379250A (fr) 1964-06-30
SE300751B (fr) 1968-05-06
FR1363690A (fr) 1964-06-12

Similar Documents

Publication Publication Date Title
US4614512A (en) Sheet folding machine
US2684191A (en) Transfer mechanism for feeding opened bags to a bag filling apparatus
EP0983951A3 (fr) Dispositif correcteur à rouleaux ou à bande pour l'alignement latéral, en cours de faconnage, d'articles en feuilles ou en plaques partiellement pliés dans une plieuse-colleuse
US3198512A (en) Folding machines for pre-punched cardboard pieces
US2379127A (en) Box creasing and folding machine
CA2009559A1 (fr) Dispositif pour aligner les flans de boites a l'interieur d'une machine servant a la fabrication de boites
US2839972A (en) Apparatus for folding trailing flaps
US2805533A (en) Machines for sealing shipping cartons or the like
US2197089A (en) Method and apparatus for making boxes
US1955398A (en) Folding machine
US1684903A (en) Blank-bending machine
US1841755A (en) Blank creasing and folding machine
JP2511452B2 (ja) フラツプ折曲・保持装置
US2285537A (en) Infold and outfold box machine
US1972021A (en) Machine for making boxes
US2981043A (en) Wrapping machine
US1870754A (en) Apparatus for folding sheet material
US1258599A (en) Machine for cutting or trimming box-blanks.
US2396262A (en) Apparatus for closing bags
US3208418A (en) Sewing machine feeding mechanism
US2574527A (en) Box blank folding machine
US2451648A (en) Blank advancing means
US1179573A (en) Envelop-making machine.
US3309842A (en) Carton flap-opening apparatus
US2283159A (en) Paper board folding machine and method