US3406494A - Guiding arrangement for material to be wrapped between moving foils - Google Patents

Guiding arrangement for material to be wrapped between moving foils Download PDF

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Publication number
US3406494A
US3406494A US549677A US54967766A US3406494A US 3406494 A US3406494 A US 3406494A US 549677 A US549677 A US 549677A US 54967766 A US54967766 A US 54967766A US 3406494 A US3406494 A US 3406494A
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United States
Prior art keywords
goods
foils
connecting station
guiding
station
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Expired - Lifetime
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US549677A
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English (en)
Inventor
Beck Hans
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Individual
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Individual
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    • 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
    • B65B9/02—Enclosing successive articles, or quantities of material between opposed webs

Definitions

  • the present invention concerns a guiding arrangement for goods to be wrapped between moving foil webs which at a connecting station are connected to each other along at least one edge of the foil webs, the edges of said foil Webs being held by transporting means.
  • an object of the present invention to provide an apparatus which will permit also on wrapping machines for goods to be wrapped between foil webs to wrap the goods with a tightly fitting envelope.
  • FIG. 1 is a top view of a guiding arrangement according to the present invention with a wrapping station for wrapping goods between foils.
  • FIG. 2 represents a section along the line 2-2 of FIG. 1 during a first wrapping phase.
  • FIG. 3 is a section along the line 33 of FIG. 1 showing a second wrapping phase.
  • FIG. 4 illustrates a section taken along the line 44 of FIG. 1 and shows a third wrapping phase without the connecting station.
  • the guiding apparatus has a restriction which will bulge the material in a direction perpendicular to the plane of transportation while within said station there is provided a form which holds the material in said bulged or upset condition.
  • the device according to the present invention can also be used as centering and aligning device for the material moving toward the connecting station.
  • the restriction at two rails of which the distance measured therebetween transverse to the foil web decreases in the direction toward the connecting station.
  • the rails form an image to each other with regard to the central axis of transportation while the distance between said rails measured transverse to the path of the foils decreases linearly in the direction toward the connecting station. In this way, symmetrical conditions and a uniform transverse upsetting of the material will be obtained.
  • the distance between the rails in the direction transverse to the path of the foils remains constant within the connecting station.
  • the rails are double rails arranged above each other. These double rails are vertically spaced from each other in such away that they form a free passage for the marginal portions of the foils which pass between said rails to the transporting means guiding said marginal portions. In this way the marginal foil areas may be guided at half the height of the material to be wrapped and may be grasped by means of the transporting means. In this Way a good guiding of the foils in the vicinity of the connecting station is obtained.
  • Such rails can easily be installed in already existing installations.
  • FIG. 1 shows only a bed 10 of a wrapping machine which latter may be of any standard design.
  • the said bed 10 has a tablelike elevation 10a having at both sides thereof lower and upper guiding rails 11, 12 respectively. Those surfaces of said guiding rails which face each other are provided with guiding grooves 11a and 12a respectively. All guiding rails 11, 12 are in a manner not shown in the drawing either directly or indirectly firmly connected to the machine bed 10.
  • grooves 11a, 12a there are guided elastic conveyor belts 13, 14 of rectangular cross section which pass over rollers. These conveyor belts are at the same speed pulled through the grooves in the direction of the arrow A.
  • the material is piece by piece placed upon a lower thermoplastic foil web 15 of which the drawing shows the pieces 16, 19, 20 and 21.
  • a lower thermoplastic foil web and the material placed thereon are covered by a likewise thermoplastic upper foil web 17.
  • the marginal areas of the foil are moved between conveyors belts 13 and 14 which are sufiiciently pressed against each other so as to feed the webs of foil therebetween toward a welding station 18.
  • the foil webs 15, 17 have previously been provided between the individual pieces of the goods with transverse separating welding seams 22,23, 24.
  • the foils 15 and 17 as well as the pieces of the goods placed thereon pass at the same speed to the separating welding station 18 for the longitudinal seams.
  • the foils are on one hand welded to each other along the seam and on the other hand are separated from each other within the welding seam or at least are processed for any easy separation of the foil web pieces.
  • upper and lower guiding rails 26 and 27 Adjacent to guiding rails 11 and 12, upper and lower guiding rails 26 and 27 are firmly mounted on machine bed 10 at both sides thereof in such a way that bet-ween the superimposed guiding rails 26 and 27 those foil web portions have a free passage which are located adjacent to those marginal portions of the foils which are engaged by the conveyor belts 13 and 14.
  • the distance between said guiding rails measured in the direction transverse to the 'foil web is over a considerable portion of the length of the rails less than the normal width of the goods.
  • the guiding rails 26 and 27 have feeding sections 26a, 27a the width of which decreases toward the separating welding station 18, and also have sections 26b, 27b of uniform width, said sections 26b and 27b being located further inside station 18.
  • Guiding rails 26 and 27 may also have differently formed feeding or introducing sections 26a, 27a or, if symmetrical conditions are not required, may be arranged at one side only.
  • the guiding device can be employed with continuous and also discontinuous wrapping operations. Those surfaces of the guiding device which through the intervention of the foils press upon the goods may also be covered by belts which move along, are driven or not driven.
  • the goods suitable for being wrapped by an apparatus according to the present invention may be mentioned well bound piles of paper or non-bound piles of paper, such as napkins, copying books, textiles, articles of synthetic material, small parts, etc. While in connection with the present invention a device has been described which operates according to the separating welding method, it is also possible, when no thermoplastic foils are used, ahead and at station 18 to connect the two foils by adhesives or by folding or pressing methods, or the like.
  • the present invention is, by no means, limited to the particular arrangement shown in the drawings but also comprises any modifications within the scope of the appended claims. It may also be mentioned that if the wrapping foils are plastic synthetic foils, as means employed at the cutting station for cutting the foils and producing a connection or fusing of the foils there may be employed a device as disclosed in my co-pending application entitled, Cutting-Welding Device for Thermoplastic Synthetic Foils, based on my German application B 81,946 filed in Germany on May 15, 1965, and filed in the United States of even date herewith.
  • An arrangement for wrapping goods in foils which includes: a bed, a connecting station supported by said bed for joining foils around goods, guiding means supported by said bed...for guiding webs of foil together with the goods to be wrapped therebetween to said connecting station, said guiding means including a restriction ahead of said connecting station and defining a passage for the goods to be wrapped of a width less than the normal extension of said goods in the direction transverse to the direction of the movement of saidlgoods toward said connecting station wherebysaid goods is forced to bulge upwardly, means arrangedat said connecting station for maintaining said goods in bulged condition while passing said connecting station, and means arranged at said connecting station for producing a connection of the foils which confine said goods therebetween, said connection. being effected along at least one line in the longitudinal directio of said guiding means.
  • said guiding means includes rail means spaced from each other in a direction transverse to the movement ofsaid goods toward said connecting station, thespacing of said rail means at the entrance end thereof for said goods being greater than the normal extension of said goods in the direction transverse to the direction of movement of said goods toward said connecting station while the spacing of said rail means gradually decreases toward said connecting station to a width considerably less than the normal extension of said goods in the direction transverse to the movement thereof to said connecting station whereby said goods when passing through said rail means will gradually be bulged in an upward direction.
  • said connecting station includes additional rail means substantially uniformly spaced from each other by a distance equalling substantially the narrowest spacing of said rail means with decreasing spacing for maintaining the goods in bulged condition while passing said connecting station,
  • said additional rail means forming an extension of the rail means with decreasing spacing.
  • conveyor belt means movable between each pair of superimposed rails-and operable to engage and transport the marginal areas of the foils to be conveyed to said connecting station.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Basic Packing Technique (AREA)
  • Packaging Of Special Articles (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
US549677A 1965-05-15 1966-05-12 Guiding arrangement for material to be wrapped between moving foils Expired - Lifetime US3406494A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB0081945 1965-05-15

Publications (1)

Publication Number Publication Date
US3406494A true US3406494A (en) 1968-10-22

Family

ID=6981310

Family Applications (1)

Application Number Title Priority Date Filing Date
US549677A Expired - Lifetime US3406494A (en) 1965-05-15 1966-05-12 Guiding arrangement for material to be wrapped between moving foils

Country Status (6)

Country Link
US (1) US3406494A (de)
BE (1) BE680354A (de)
CH (1) CH435096A (de)
DE (1) DE1461802A1 (de)
GB (1) GB1090766A (de)
NL (1) NL140472B (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3490198A (en) * 1967-05-22 1970-01-20 Globe Ind Inc Carton forming machine
US3546828A (en) * 1967-10-25 1970-12-15 Phillips Petroleum Co Packaging compressible materials
US3665673A (en) * 1969-07-28 1972-05-30 Fmc Corp Packaging machine and method
US3739547A (en) * 1971-01-28 1973-06-19 Auburn Eng Inc Shrink-wrapping method and apparatus
US3794315A (en) * 1970-07-17 1974-02-26 Fuji Photo Film Co Ltd Bag conveyor system with automatic edge pressing
US20040093836A1 (en) * 2002-11-18 2004-05-20 Ouellette Joseph F. Object conveyor and bagger with sonic welded bag seams

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1381075A (fr) * 1964-01-30 1964-12-04 Gevaert Photo Prod Nv Procédé et dispositif pour l'emballage d'une pile de feuilles

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1381075A (fr) * 1964-01-30 1964-12-04 Gevaert Photo Prod Nv Procédé et dispositif pour l'emballage d'une pile de feuilles

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3490198A (en) * 1967-05-22 1970-01-20 Globe Ind Inc Carton forming machine
US3546828A (en) * 1967-10-25 1970-12-15 Phillips Petroleum Co Packaging compressible materials
US3665673A (en) * 1969-07-28 1972-05-30 Fmc Corp Packaging machine and method
US3794315A (en) * 1970-07-17 1974-02-26 Fuji Photo Film Co Ltd Bag conveyor system with automatic edge pressing
US3739547A (en) * 1971-01-28 1973-06-19 Auburn Eng Inc Shrink-wrapping method and apparatus
US20040093836A1 (en) * 2002-11-18 2004-05-20 Ouellette Joseph F. Object conveyor and bagger with sonic welded bag seams
US7481033B2 (en) * 2002-11-18 2009-01-27 Ouellette Machinery Systems, Inc. Object conveyor and bagger with sonic welded bag seams
US20090113855A1 (en) * 2002-11-18 2009-05-07 Ouellette Machinery Systems, Inc. Object Conveyor and Bagger with Sonic Welded Bag Seams
US7681380B2 (en) 2002-11-18 2010-03-23 Ouellette Machinery Systems, Inc. Object conveyer and bagger with sonic welded bag seams

Also Published As

Publication number Publication date
NL140472B (nl) 1973-12-17
BE680354A (de) 1966-10-03
CH435096A (de) 1967-04-30
DE1461802A1 (de) 1969-09-18
NL6606522A (de) 1966-11-16
GB1090766A (en) 1967-11-15

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