US3431831A - Package assembly film folding collar - Google Patents

Package assembly film folding collar Download PDF

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Publication number
US3431831A
US3431831A US607024A US3431831DA US3431831A US 3431831 A US3431831 A US 3431831A US 607024 A US607024 A US 607024A US 3431831D A US3431831D A US 3431831DA US 3431831 A US3431831 A US 3431831A
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US
United States
Prior art keywords
film
guide plate
side plates
folding
plates
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
US607024A
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English (en)
Inventor
Robert W Mcgill
Walter D Hardee
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.)
Scott Technologies Inc
George J Meyer Manufacturing Co
Original Assignee
George J Meyer Manufacturing Co
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 George J Meyer Manufacturing Co filed Critical George J Meyer Manufacturing Co
Application granted granted Critical
Publication of US3431831A publication Critical patent/US3431831A/en
Assigned to FIGGIE INTERNATIONAL INC. reassignment FIGGIE INTERNATIONAL INC. CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). EFFECTIVE JUNE 1, 1981. Assignors: A-T-O INC.
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/06—Enclosing successive articles, or quantities of material, in a longitudinally-folded web, or in a web folded into a tube about the articles or quantities of material placed upon it
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/06—Enclosing successive articles, or quantities of material, in a longitudinally-folded web, or in a web folded into a tube about the articles or quantities of material placed upon it
    • B65B2009/063—Forming shoulders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B53/00—Shrinking wrappers, containers, or container covers during or after packaging
    • B65B53/02—Shrinking wrappers, containers, or container covers during or after packaging by heat

Definitions

  • This invention relates to a film folding apparatus, basically comprised of a film collar which is substantially rectangular in shape and which is formed from a film guide plate, a top plate, a pair of side plates, and a pair of bottom plates, at least a portion of the leading edges of the guide plate, the side plates, and the bottom plates extending at a 45 angle to other edges of the plates to fold the film therearound and into a continuous envelope.
  • the film collar is open ended and its upstream open end is adapted to receive a row of objects, such as cans, which are conveyed up to and into the forward open end of the film collar.
  • a sheet of heat shrinkable, transparent plastic film is adapted to be continuously moved over and folded around the leading edges of the film collar in order to form a continuous envelope around the objects which are passing into and through the film collar.
  • FIG. 1 is a partly broken-away, side elevation of a preferred embodiment of the entire film folding apparatus of the invention
  • FIG. 2 is a broken away plan view of the embodiment illustrated in FIG. 1, particularly illustrating the trapezoidal shaped film guide Plate;
  • FIG. 3 is a fragmentary, perspective view of the way in which the heat shrinkable, transparent film is folded by the film folding apparatus of the invention to form a continuous envelope around the abutted rows of cans which are being fed into the film collar of the film folding apparatus of the invention;
  • FIG. 4 is an enlarged side elevation particularly illustrating the film collar of the film folding apparatus of the invention.
  • FIG. 5 is an end elevation of the film collar illustrated in FIG. 4, particularly illustrating the bottom plates and the film folding bar utilized with the film collar;
  • FIG. 6 is a perspective view of the resulting package assembly formed when the film folded into a continuous envelope around the cans is heat shrunk and cut.
  • the numeral 10 generally indicates the film folding apparatus of the invention.
  • the film folding apparatus 10 is part of an over-all apparatus adapted to form the package assembly 12 illustrated in FIG. 6, and any suitable apparatus may be used to complete the assembly.
  • the package assembly 12 as illustrated by FIG. 6, consists of a carrier assembly for two abutted rows of three cans each wherein an open-ended heat shrunk band of plastic film is operatively and tightly wrapped around and engaged with the cans from top to bottom thereof in ice order to present and retain the cans grouped together in a compact, unitary assembly.
  • the film forming apparatus 10 is particularly designed and adapted to continuously wrap an endless, open-ended envelope of heat shrinkable plastic film 14 around a plurality of abutted rows of cylindrical objects, such as cans 16, whereby the film can be heat shrunk to tightly engage the cans to form the assembly illustrated by FIG. 6.
  • the cans 16 are fed in the direction of arrow 18 as by a suitable conveyor 20, and/or other means into the film folding apparatus 10 of the invention.
  • this particular disclosure and invention relates to the precise apparatus which is utilized to smoothly, continuously, and easily wrap and fold plastic film 14 into an envelope 14a around the cans 16. After the envelope 14a has been enclosed around the cans 16, they are conveyed in the direction of arrow 18a whereupon the additional apparatus, not shown, forms the carrier or package assembly 12 of FIG. 6.
  • the actual film folding apparatus 10 includes a horizontally positioned, substantially trapezoidal shaped film guide plate 20 which is secured to a suitable mounting bar or support frame 22 and is pointed upstream of the article supply flow.
  • the leading edge of the film guide plate 20, as best illustrated by FIG. 2 has a top or forward portion 20a which is parallel to the base of the guide plate 20, and also has angularly directed portions 20b which are directed in an angular relationship of 45 with the forward portion 20a of the leading edge of the film guide plate 20.
  • the purpose of such film guide plate 20, and particularly the angularly directed portions 20b, is to begin to fold the film 14 into an envelope 14a around cans 16, as will be explained in greater detail hereinafter.
  • the side plates 24 Secured to the lower face of the film guide plate 20, and extending vertically downwardly therefrom in perpendicular relationship thereto are a pair of parallel side plates 24.
  • the side plates 24, as best illustrated by FIGS. 4 and 5, are substantially rectangular in shape, but the forward lower corner of each side plate is beveled, as at 26, at about a 45 angle to the horizontal.
  • the film will fold around the edges or bevels 26 of each side plate 24, the purpose of the bevels 26 being to allow portions of the advancing film 14 to fold therearound, in order to form the side portions of the envelope 14a.
  • a top plate 28 positioned substantially parallel to the guide plate 20 but spaced therefrom, and positioned therebelow, the top plate 28 extending between and being secured to the side plates 24 in substantially perpendicular relationship thereto.
  • the cans 16 are adapted to be fed by the conveyor 20 into the substantially rectangular shaped opening or film collar formed by the top plate 28 and the side plates 24.
  • a pair of bottom or base plates 30 positioned adjacent bottom edges 32 of the side plates 24.
  • the bottom plates 30 are mounted in pivotal relation to the side plates, as by a pair of respective hinge members 34 which piyotally secure downstream ends of the base plates 30 to a dependent portion 22a of a support frame 22.
  • a suitable finger support 38 is associated with and secured to each bottom plate 30, and also is hingedly secured to support frame 22 in order to provide support for the cans 16 as they are fed by conveyor 20 into the film folding apparatus 10.
  • the finger supports 38 and the bottom plates 30, due to their pivotal mounting on the support frame 22a are adapted to be locked in the full line position indicated in FIG. by leaf spring locking fingers 39, the ends of which can engage shoulders 138 on the supports 38 to position the bottom plates substantially perpendicular to the side plates 24.
  • the bottom plates can be pivoted in the direction of arrows 4t] into the dotted line position indicated in FIG. 5 by simply grasping knobs 41 secured to the respective locking fingers 39 and pulling the locking fingers outwardly to allow the supports 38 to fall in the direction of arrow 40 wherein the bottom plates are substantially in vertical alignment with the side plates 24.
  • leading or forward edges 26a of the bottom plates 30 are also shaped or cut off on an angle to form an extension of the edge or bevel 26 of each of the side plates 24.
  • the purpose of such angled corner 26a on the bottom plates 30 is to allow the film 14 to be folded around the edge 26a in order to form the base portions of the envelope 14a, as will be explained in greater detail hereinafter.
  • a pair of film folding bars 42 which are adapted to be swung about their respective pivot pins 44 and into abutment with the respective outside faces of the side plates 24.
  • the folding bars 42 are positioned adjacent to the lower face of film guide plate so that as such film folding bars 42 are swung inwardly into abutment with the side plates 24, the film folding bars 42 remain in close proximity with and adjacent to the lower face of the film guide plate 20.
  • folding bars 42 The purpose of the folding bars 42 is to allow that portion of film 14 which is folded over the ang'ularly directed portions 20b of the leading edge of film guide plate 20 to be folded again over a respective film folding bar 42 so that the lateral marginal portions of the film advance in a vertically downward direction along the outside faces of the side plates 24.
  • a length of the transparent, heat shrinkable plastic film 14 is feed off a suitable supply roll 46 which is journalled to a carriage or frame 48.
  • As the film 14 is fed from supply roll 46 it moves downwardly in the direction of arrow 50 and continues in the direction of arrows 5021 around a series of suitable guide rolls 52 usually ending in roll 52a parallel to and immediately above the guide plate 20.
  • the film feeds 01f guide roll 52a it will be traveling in the direction of arrows 54 (see FIG. 2) substantially along the top face of the film guide plate 20.
  • the film 14 is then advancing to and is folded around or over the leading edge of the film guide plate 20. That center portion of the film folding over portion 20a of the leading edge, as best illustrated by FIG. 3, will fold in a vertically downward direction as indicated by arrow 56.
  • Those marginal portions of the film 14 which fold around the angularly directed portions 201) of the leading edges of the film guide plate 20 are folded over against the lower face of the guide plate 20, and advance in the direction of arrows 58 towards the side plates 24.
  • These portions of the film moving in the direction of arrows 58 are folded over the respective film folding bars 42 whereby the film is moving in the direction of arrows 60 as it travels in a vertically downward direction along the outside faces of the side plates 24.
  • film folding bars 42 are opened or swung outwardly to allow the film 14 folded over the angularly directed leading edges 20b of the film guide plate 20 to be threaded or fed between the lower face of the guide plate 20 and the folding bars 42. This is usually done manually as a. new sheet of film 14 is fed into the film folding apparatus of the invention. After such threading has taken place, the folding bars 42 are swung about pivot pins 44 and are firmly locked into the position indicated by FIG. 5.
  • a suitable transversely directed cross bar or piece 62 which is pivotally mounted by pivot pin 64 to the end of one of the film folding bars 42 is utilized to accomplish such with the transverse locking piece 62 being adapted to be secured to the free end of the other film folding bar as by being received in a slot 66 provided in the free end of the other film folding bar 42, as illustrated by FIG. 5.
  • An adjustable wing nut 68 is adapted to be tightened so that the film folding bars 42 can be firmly locked together whereby the film 14 passing between such folding bars 42 and the lower face of the film guide plate 20 folds over the folding bars 42 in a wrinkle free condition.
  • each part of the film moving in the direction of arrow 60 folds around the beveled edge 26 of the side plates 24 to cause it to fold around to the inside faces of the side plates 24 whereby it moves in the direction of arrow 72.
  • These portions of the fihn moving in the direction of arrow 72 form the side portions of the envelope 14a, as is best illustrated by FIG. 3.
  • the entire film folding apparatus 10 has previously been raised vertically by one or more suitable power cylinders 75 or equivalent means which are operatively secured to the support frame 22 and are carried by the frame of the apparatus.
  • suitable power cylinders 75 or equivalent means which are operatively secured to the support frame 22 and are carried by the frame of the apparatus.
  • the film 14 is folded around the beveled forward edges to the bottom plates by hand and the plates are then pivoted upwardly and inwardly into the full line position indicated by FIG. 5.
  • the bottom plates 30 slightly overlap each other with the edges of the film 14 folded around the bottom plates also overlapping.
  • Such an overlapping arrangement of the folded edges of the film 14 readily allows the two overlapping edges of the film 14 to be heat sealed together, as at 77, to form the continuous envelope 14a.
  • the film is centered on the film guide plate 20 and it is drawn into and through the apparatus by suitable members such as devices (not shown) on endless chains 100 which engage the can and film assembly to move it along for further processing.
  • FIG. 3 best illustrates the precise way in which the film 14 is folded by the film folding apparatus 10 in order to form the continuous envelope 14a smoothly.
  • FIG. 3 also illustrates the precise manner in which the direction of the moving film 14 is changed as the film folds over the straight and beveled corners of the film folding apparatus.
  • all the beveled edges or corners of the top plate, the side plates, and the bottom plates are quite smooth and are formed at an angle of substantially 45 to an adjacent edge of such plates.
  • the guide surfaces, or edges of the plates are formed at an angle of about 45 to the direction of movement of the film. The angles may vary a degree or two from 45 as in some instances this seems to give an improved fold and material flow action.
  • plastic film or other material being processed such as paper
  • plastic film or other material being processed such as paper
  • these various plates are all made from thin sheet metal, for example 0.050 inch thick, as the folding edges are quite thin or narrow for smooth folding action of a sheet therearound.
  • the cans 16 are slid onto and over a suitable support 80 as they move into and through the apparatus 10.
  • the side plates 24, the top plates 28, and bottom plates 30 form an assembly which is, for example, removably secured to the support frame 22 so that a difierent size folding assembly can be substituted in order to adapt the film folding apparatus 10 to receive slightly differently dimensioned cans or other objects which are fed thereinto.
  • the use of the film folding apparatus of the invention uniquely allows a continuous length of a plastic film, which is usually made from a heat shrinkable material such as polyvinyl chloride or the like and usually is only one or two mils thick, to be easily, automatically, continuously, and quickly folded around the leading edges of the film folding apparatus in order to form a continuous envelope around an abutted row or rows of articles, such as cylindrical cans, which are passing into the forward open end of the film folding apparatus.
  • a plastic film which is usually made from a heat shrinkable material such as polyvinyl chloride or the like and usually is only one or two mils thick
  • Apparatus for forming a continuous heat-shrinkable envelope around one or more abutted rows of objects, such as cans, as they are advanced into the apparatus, from a film or sheet of plastic or other material as it is moved through the apparatus comprised of a horizontally extending, substantially trapezoidal shaped film guide plate positioned to extend upstream in the apparatus, the sides thereof forming about 45 angles with the top and the base thereof,
  • each side plate operatively secured to the bottom edge of each side plate and adapted to extend inwardly therefrom in substantially perpendicular relation thereto, the forward edge of each of said bottom plates being shaped at an angle of about 45 to the laterally outer edge of each side plate,
  • top plate positioned substantially parallel to said guide plate but below and spaced therefrom and extending between said side plates whereby a substantially rectangularly shaped opening is defined by said top plate, said side plates and said bottom plates into which said objects can be fed, and
  • movable guide means for continuously engaging a length of moving film and drawing it against the edges of said guide plate wherein the film folds therearound, said guide means positioning marginal portions of the film for movement down along said side plates and around the corners of said side plates and said bottom plates to form a continuous envelope around the abutted objects passing into the opening.
  • Apparatus for forming a continuous envelope around one or more abutted rows of objects, such as cans, as they are advanced into the apparatus, from a continuous film or sheet as it is moved through the apparatus comprised of a substantially rectangular shaped, open-ended film shaping collar formed from a trapezoidal shaped film guide plate, a pair of side plates, and a pair of bot tom plates, said film guide plate, side plates, and bottom plates having leading edge portions extending at about a 45 angle to adjacent edge portions thereof, and said film guide plate having a leading edge portion normal to the line of advance of the objects into the apparatus, and
  • bottom plates are pivotal with relation to said side plates from a position perpendicular thereto to a position in vertical alignment therewith, and wherein locking means for locking said bottom plates in one or the other of said positions is provided.
  • said means for continuously retaining the film to fold around the leading edges of the guide plate and for retaining folded marginal portions of the film against the side plates include a pair of pivotally mounted film folding bars adapted to be swung about their pivot points and into abutment with the respective outside faces of each of said side plates whereby the film which folds over the angularly directed portions of the leading edge of said film guide plate also folds over a respective film folding bar.
  • top plate means is positioned below said film guide plate and extends between said side plates, said top plate means having a leading edge portion parallel to and directly below said leading edge portion of said film guide plate, a center portion of the film being adapted to move around and be folded over the leading edge portion of said top plate means, all of said plates being made from sheet metal.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Making Paper Articles (AREA)
US607024A 1967-01-03 1967-01-03 Package assembly film folding collar Expired - Lifetime US3431831A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US60702467A 1967-01-03 1967-01-03

Publications (1)

Publication Number Publication Date
US3431831A true US3431831A (en) 1969-03-11

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Application Number Title Priority Date Filing Date
US607024A Expired - Lifetime US3431831A (en) 1967-01-03 1967-01-03 Package assembly film folding collar

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US (1) US3431831A (nl)
JP (1) JPS4816230B1 (nl)
BE (1) BE708852A (nl)
DE (1) DE1586201A1 (nl)
FR (1) FR1550658A (nl)
GB (1) GB1175387A (nl)
NL (1) NL6717138A (nl)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3664088A (en) * 1970-06-23 1972-05-23 Olinkraft Inc Package forming apparatus
US3732789A (en) * 1969-10-27 1973-05-15 Aachen Fuerstenau Gmbh Method of and device for packing articles
US3780628A (en) * 1972-03-13 1973-12-25 Ato Inc Film shaping apparatus
USRE30010E (en) * 1969-04-10 1979-05-29 Frank Garrett Shanklin Packaging apparatus and method
US4464883A (en) * 1980-12-11 1984-08-14 Baker Perkins Holdings Limited Wrapping machines
US5274985A (en) * 1992-11-06 1994-01-04 Limousin Jean L Self threader for wrapping machine
WO2006011022A2 (en) * 2004-07-22 2006-02-02 Pulsar S.R.L. Apparatus for packing groups of items
US20130097976A1 (en) * 2011-10-21 2013-04-25 Rethceif Enterprises, Llc Method and apparatus for unfolding folded plastic film for use in forming a packaging tube
US11084608B2 (en) * 2016-05-05 2021-08-10 Moda Ip Limited Flow wrapper apparatus with forming tube

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5177409U (nl) * 1974-12-13 1976-06-18

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3155018A (en) * 1961-09-16 1964-11-03 Hoefliger & Karg Former for the production of tubing

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3155018A (en) * 1961-09-16 1964-11-03 Hoefliger & Karg Former for the production of tubing

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE30010E (en) * 1969-04-10 1979-05-29 Frank Garrett Shanklin Packaging apparatus and method
US3732789A (en) * 1969-10-27 1973-05-15 Aachen Fuerstenau Gmbh Method of and device for packing articles
US3664088A (en) * 1970-06-23 1972-05-23 Olinkraft Inc Package forming apparatus
US3780628A (en) * 1972-03-13 1973-12-25 Ato Inc Film shaping apparatus
US4464883A (en) * 1980-12-11 1984-08-14 Baker Perkins Holdings Limited Wrapping machines
WO1994011251A1 (en) 1992-11-06 1994-05-26 Lw Technologies, Inc. Self threader for wrapping machine
US5274985A (en) * 1992-11-06 1994-01-04 Limousin Jean L Self threader for wrapping machine
US5406773A (en) * 1992-11-06 1995-04-18 Limousin; Jean L. Self threader for wrapping machine
WO2006011022A2 (en) * 2004-07-22 2006-02-02 Pulsar S.R.L. Apparatus for packing groups of items
WO2006011022A3 (en) * 2004-07-22 2006-07-06 Pulsar Srl Apparatus for packing groups of items
US20090301037A1 (en) * 2004-07-22 2009-12-10 Massimo Franzaroli Apparatus for packing groups of items
US20130097976A1 (en) * 2011-10-21 2013-04-25 Rethceif Enterprises, Llc Method and apparatus for unfolding folded plastic film for use in forming a packaging tube
US9038355B2 (en) * 2011-10-21 2015-05-26 Rethceif Enterprises, Llc Method and apparatus for unfolding folded plastic film for use in forming a packaging tube
US11084608B2 (en) * 2016-05-05 2021-08-10 Moda Ip Limited Flow wrapper apparatus with forming tube

Also Published As

Publication number Publication date
GB1175387A (en) 1969-12-23
NL6717138A (nl) 1968-07-04
JPS4816230B1 (nl) 1973-05-21
DE1586201A1 (de) 1971-07-08
FR1550658A (nl) 1968-12-20
BE708852A (nl) 1968-05-16

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Date Code Title Description
AS Assignment

Owner name: FIGGIE INTERNATIONAL INC.

Free format text: CHANGE OF NAME;ASSIGNOR:A-T-O INC.;REEL/FRAME:003866/0442

Effective date: 19810623