US3618481A - Apparatus for erecting cartons - Google Patents

Apparatus for erecting cartons Download PDF

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Publication number
US3618481A
US3618481A US7681A US3618481DA US3618481A US 3618481 A US3618481 A US 3618481A US 7681 A US7681 A US 7681A US 3618481D A US3618481D A US 3618481DA US 3618481 A US3618481 A US 3618481A
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US
United States
Prior art keywords
carton
plunger
shaft
erecting
portions
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
US7681A
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English (en)
Inventor
Rune G A Odenhagen
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.)
Akerlund and Rausing AB
Original Assignee
Akerlund and Rausing AB
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 Akerlund and Rausing AB filed Critical Akerlund and Rausing AB
Application granted granted Critical
Publication of US3618481A publication Critical patent/US3618481A/en
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    • 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
    • B31B50/44—Folding sheets, blanks or webs by plungers moving through folding dies
    • B31B50/46—Folding sheets, blanks or webs by plungers moving through folding dies and interconnecting side walls

Definitions

  • the present invention relates to apparatus for erecting a carton from a blank comprising a base portion, a number of side wall portions extending from said base portion, corner or joint portions connecting said side wall portions and a preferably horizontal marginal flange extending from the top edge of said wall portions, at which the blank by a plunger is forced through ashaft.
  • the apparatus comprises a preferably vertically operating plunger and a shaft.
  • the device is characterized by a pre-forming ring disposed at the upper portion of the shaft, a carton erecting ring positioned below said pre-forming ring, and a press seat positioned below the carton erecting ring and adapted to press the marginal flange outwards into a desired position, said plunger being divided into two portions so that the lower portion of the plunger may be stopped in a lower position at the same time as the press portion of the plunger per-v of the method according to the invention and partly a.
  • FIG. 1 shows the blank of a corner of the carton in plane condition.
  • FIG. 2 shows the same corner of the carton in erected condition at which a doubled fin which is typical of this carton is placed on the inside of the carton.
  • FIG. .3 shows the same corner having an externally positioned doubled fin.
  • FIG. 4 is a sectional view of the device according to the invention.
  • FIGS. 5 and 6 are perspective views of the device.
  • the carton corner shown in FIG. 1 is formed by a base portion 1, two side wall portions 2 and 3, and three triangular corner portions 4, 5 and 6 of which the portions 4 and 5 preferably have generally the same size.
  • the corner may be folded in different ways. In either case the corner portions 4 and 5 are folded so as to form a doubled fin which in FIG. 2 is concealed on the inside of the carton whereas the fin in FIG. 3' is secured to the outside of the side wall portion 3.
  • Such doubled fins are already known from quite a number of carton constructions.
  • the present carton is different from the prior art in that the doubled fin is not entirely drawn in from the corner but is extended so as to somewhat protrude beyond the side wall portion 2.
  • FIGS. 4-6 fundamentally is usable both to the folding operation according to FIG. 2 and to the folding operation according to FIG. 3. In the condition according to the drawing, however, the device is adapted to erect the very embodiment according to FIG. 3.
  • the device shown by way of an example comprises a plunger 12 and a shaft or receptacle 13 with which the plunger 12 cooperates.
  • the shaft 13 is mounted on a frame 14, which carries posts 15, on which the plunger is mounted by means of bearings 16 and 17.
  • the bearings 16 and the plunger 12 are mounted on a plate 18.
  • the plunger 12 is divided into two portions, viz. a lower portion 19 and an upper portion 20. Said portions are connected by means of a central pin 21, which by means of a bearing 22 is adapted to slide in the upper portion 20. Normally the portions 19 and 20 are kept apart by a spring 23. In addition to the pin 21 the reciprocal movement of both portions is controlled by a guide pin 24 which slides in a bearing 25 in the upper portion.
  • the shaft comprises an upper guide ring 26 adapted to guide the blank into proper position when the blank is fed into position above the shaft.
  • a pre-forming ring 27 which in the embodiment shown in the drawing consists only of two opposite bars 27 which are clamped immediately above the mouth of the shaft.
  • the bars 27 are provided with notches 28 (FIG. 6) adapted to guide the corner portions of the blank into the desired position at the same time as the bars 27 start the erection of two opposite side wall portions of the carton.
  • the regular carton erecting ring 29 is positioned which constitutes the upper part of the shaft 13.
  • a number of pullers 30 are positioned which pull off the erected carton from the plunger by engaging the top side of the out-turned marginal flange during the ascending movement of the plunger.
  • the upper portion 20 of the plunger to pass by the pullers 30 the upper portion is provided with recesses 31.
  • the bottom of the shaft 13 consists of a plate 32 which is depressable against the atcion of a spring and adapted not to stop the lower portion of the plunger until the formed blank has reached a position just opposite a press seat 33.
  • the spring action is provided by means of a spring 34 mounted within a telescopic cylinder 35. Owing to the spring 34 the bottom plate 32 may operate as an ejector which pushes up the erected carton into a position immediately above the seat 33.
  • the shaft 13 is provided with a lateral opening through which the erected carton can be moved out of the tool, preferably by means of an air nozzle 36 supplied with compressed air from a compressed air tube 37.
  • the posts 15 also carry a stationary plate 38, which supports a compressed air cylinder 39 or a corresponding source of power.
  • the piston rod of the compressed air cylinder by means of an extension pin 40 is connected with the plate 18 supporting the plunger.
  • Leaf springs 52 are clamped between the portions 19 and 20 of the plunger 12. The leaf springs operate with a rolling movement in order to force the marginal flange 711 outwards. This ensures the formation of a completely smooth marginal flange.
  • FIG. 4 also shows a number of screws or similar securing means which need not be more closely described.
  • FIG. shows the tool according to FIG. 4 mounted in a machine.
  • the blanks are fed by means of a feeding chain 41 and are sliding on rails 42. Just in front of a heating element 43 the blanks are momentarily stopped preferably by transmitting them at said point from a first feeding chain (not shown) onto the feeding chain 41.
  • the heating element 43 is provided with a slot 44 into which the blank extends. Just opposite those points of the blank where heating is desired there are exhaust openings which communicate with a hot-air unit 45 adapted to be laterally moved on guide bars 46 together with the heating elements 43.
  • the guide bars 46 also carry a plate 47 which supports a control unit 48 which by means of guide shoes 49 keeps the blank in a plane condition in the position just opposite the slots 44. This ensures heating of the proper points of the blank.
  • the guide bars 46 by means of posts 50 are supported by the frame of the machine.
  • FIG. 6 shows in perspective view and at an enlarged scale a detail of the tool. This figure shows, for instance, the upper portion 20 of the plunger, the lower portion 19, the resilient bottom plate 32, the pre-forming bar 27 with the notches 28 and the outfeed opening 51 for the finished cartons.
  • Apparatus for erecting tray-like cartons from blanks each having a base portion, at least three adjoining side walls, corner panels adioining adjacent side walls, and a marginal flange extending outwardly from the top edge of said side walls comprising a plunger element having upper and lower portions, said portions being vertically displaceable with respect to each other, resilient means for normally keeping the upper and lower portions of said plunger element vertically separated, a shaft for receiving said plunger element vertically therein, a preforming element composed of two bars on opposite sides of and at the top of said shaft, said bars being provided with notches for performing the corner panels into the desired position while preforming the side walls into their desired position so as to guide the panels and walls into a first loose folded configuration, a carton erecting element disposed below said preforming element for erecting the preformed panels and walls into a tray-like carton having the final folded configuration, flange pressing means at the bottom of and about the shaft for pressing, in cooperation with said plunger element, the marginal
  • Apparatus as claimed in claim 2 and further comprising a resiliently depressible plate at the bottom of and centrally of said shaft whereby the lower portion of said plunger element is stopped at a point where the marginal flange of an erected carton has reached said flange pressing means.
  • Apparatus as claimed in claim 1 in which the carton blanks are provided with a heat scalable covering and further comprises means for heating said blanks before said blanks are positioned between said plunger element and said shaft whereby said shaft and said plunger element may remain at a relatively lower temperature.

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  • Making Paper Articles (AREA)
US7681A 1969-02-12 1970-02-02 Apparatus for erecting cartons Expired - Lifetime US3618481A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE01890/69A SE329324B (ru) 1969-02-12 1969-02-12

Publications (1)

Publication Number Publication Date
US3618481A true US3618481A (en) 1971-11-09

Family

ID=20259012

Family Applications (1)

Application Number Title Priority Date Filing Date
US7681A Expired - Lifetime US3618481A (en) 1969-02-12 1970-02-02 Apparatus for erecting cartons

Country Status (7)

Country Link
US (1) US3618481A (ru)
DE (1) DE2006267A1 (ru)
FI (1) FI53941C (ru)
FR (1) FR2035244A5 (ru)
GB (1) GB1254822A (ru)
NL (1) NL7001752A (ru)
SE (1) SE329324B (ru)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4295839A (en) * 1979-07-06 1981-10-20 Kliklok Corporation Method and apparatus for forming a flanged tray
DE3045046A1 (de) * 1980-11-29 1982-07-01 Benz & Hilgers GmbH, 4000 Düsseldorf Verfahren und vorrichtung zum falten einer verpackungshuelle
US4417882A (en) * 1979-10-30 1983-11-29 Sprinter System Ab Method and apparatus for erecting a carton tray
US4626234A (en) * 1982-05-10 1986-12-02 Metal Box Public Limited Company Tray-type cartons erecting method and apparatus
US4636187A (en) * 1984-05-04 1987-01-13 Metal Box, P.L.C. Methods and apparatus for erecting tray-type cartons
US4832675A (en) * 1987-07-10 1989-05-23 Dopaco, Incorporated Tray forming apparatus
US5020986A (en) * 1988-05-14 1991-06-04 Die Tetra Pak Rausing & Co. Apparatus for conveying a sleeve which is closed at one end out of a processing station and into transporter means
WO2013098544A1 (en) * 2011-12-29 2013-07-04 Colpac Limited A container and blank

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA877227B (en) * 1986-11-12 1988-04-07 Alexander Packaging Equipment Proprietary Limited Machine for forming cartons and packaging goods therein

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4295839A (en) * 1979-07-06 1981-10-20 Kliklok Corporation Method and apparatus for forming a flanged tray
US4417882A (en) * 1979-10-30 1983-11-29 Sprinter System Ab Method and apparatus for erecting a carton tray
DE3045046A1 (de) * 1980-11-29 1982-07-01 Benz & Hilgers GmbH, 4000 Düsseldorf Verfahren und vorrichtung zum falten einer verpackungshuelle
US4626234A (en) * 1982-05-10 1986-12-02 Metal Box Public Limited Company Tray-type cartons erecting method and apparatus
US4636187A (en) * 1984-05-04 1987-01-13 Metal Box, P.L.C. Methods and apparatus for erecting tray-type cartons
US4832675A (en) * 1987-07-10 1989-05-23 Dopaco, Incorporated Tray forming apparatus
US5020986A (en) * 1988-05-14 1991-06-04 Die Tetra Pak Rausing & Co. Apparatus for conveying a sleeve which is closed at one end out of a processing station and into transporter means
WO2013098544A1 (en) * 2011-12-29 2013-07-04 Colpac Limited A container and blank
US9718576B2 (en) 2011-12-29 2017-08-01 Colpac Limited Container and blank
RU2628956C2 (ru) * 2011-12-29 2017-08-23 Колпэк Лимитед Контейнер и заготовка

Also Published As

Publication number Publication date
FI53941B (fi) 1978-05-31
SE329324B (ru) 1970-10-05
GB1254822A (en) 1971-11-24
DE2006267A1 (de) 1970-08-27
NL7001752A (ru) 1970-08-14
FR2035244A5 (ru) 1970-12-18
FI53941C (fi) 1978-09-11

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