US3543468A - Method and apparatus for packaging with stationary inner mandrel for forming flat bottom package - Google Patents

Method and apparatus for packaging with stationary inner mandrel for forming flat bottom package Download PDF

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Publication number
US3543468A
US3543468A US691870A US3543468DA US3543468A US 3543468 A US3543468 A US 3543468A US 691870 A US691870 A US 691870A US 3543468D A US3543468D A US 3543468DA US 3543468 A US3543468 A US 3543468A
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US
United States
Prior art keywords
package
former
mandrel
packaging
seal
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
US691870A
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English (en)
Inventor
William C Leasure
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.)
MIRA-PAK MACHINERY Co Inc
Mira Pak Inc
Original Assignee
Mira Pak Inc
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 Mira Pak Inc filed Critical Mira Pak Inc
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Publication of US3543468A publication Critical patent/US3543468A/en
Assigned to MIRA-PAK MACHINERY CO., INC. reassignment MIRA-PAK MACHINERY CO., INC. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: HERR, JAMES S., INDIVIDUALLY AND AS TRUSTEE
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
    • B65B9/10—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs
    • B65B9/20—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the webs being formed into tubes in situ around the filling nozzles
    • B65B9/22—Forming shoulders; Tube formers
    • 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
    • B65B9/10—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs
    • B65B9/20—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the webs being formed into tubes in situ around the filling nozzles
    • B65B9/2014—Tube advancing means
    • 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
    • B65B9/10—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs
    • B65B9/20—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the webs being formed into tubes in situ around the filling nozzles
    • B65B9/2035—Tube guiding means
    • 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
    • B65B9/10—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs
    • B65B9/20—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the webs being formed into tubes in situ around the filling nozzles
    • B65B9/2042—Means for altering the cross-section of the tube filling opening prior to transversal sealing, e.g. tube spreading devices
    • 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
    • B65B9/10—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs
    • B65B9/20—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the webs being formed into tubes in situ around the filling nozzles
    • B65B9/213—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the webs being formed into tubes in situ around the filling nozzles the web having intermittent motion

Definitions

  • a package formed as above described is a pillow type package which has the disadvantage of not being able to stand upright.
  • the present invention provides a method and apparatus for forming a flat bottom package on form fill and seal packaging machinery of the type shown in my prior Pat. 2,969,627.
  • a packaging machine such as shown in Pat. 2,969,627 is provided with a stationary inner mandrel which extends through the former and into the tubular shaped packaging film.
  • the lower end of the mandrel is shaped to form a fiat bottom on a package end when the package end is drawn into close contact with the end of the mandrel.
  • An external platen may be provided to fold the transverse end seal of the package against the fiat bottom of the package to further shape the bottom of the package.
  • the sealing jaws are first brought together on the tubular shaped packaging film to form one package end seal.
  • the former is moved upwardly away from the jaws to draw more film over the former.
  • the sealing jaws are released but the former continues its upward movement until the package end seal is brought into contact with the end of the mandrel.
  • the end of the mandrel is shaped to cause the package end to be flattened with the end seal projecting outwardly from the flat bottom. If desired an external platen may be brought into contact with this end seal to flatten it against the bottom.
  • Adhesive or heat sealing means may be utilized to retain the end seal in this position.
  • FIGS. 1 through 6, inclusive are diagrammatic drawings showing the sequence of operation of the present invention in connection with the packaging of a product.
  • FIG. 7 is a schematic perspective view illustrating the position shown diagrammatically in FIG. 6.
  • a continuous web of material 11 is fed from a supply roll 10 over rollers 12, 13 and 14 and over roller 15 which is connected to a former 16 for movement therewith.
  • the former 16 then forms the continuous web of material 11 into a tubular length of material 18, the opposing edges of the web being connected together by a longitudinal sealing means 17.
  • the roller 15, the former 16 and the longitudinal sealing means 17 are reciprocated vertically by the apparatus shown in the Leasure Pat. No. 2,969,627.
  • the former 16 may be of the type shown in FIGS. 13 and 14 of the said Leasure patent.
  • a pair of sealing jaws 22a and 22b are provided for forming a transverse seal across the tubular lengths 18. These sealing jaws further include cooperating knife and slot means 23a and 23b for severing a completed package after its top seal has been formed.
  • the sealing jaws may also include stripper plates as shown in the Leasure Pat. No. 3,027,695.
  • the apparatus further includes a hollow mandrel 19 having a funnel 21 located at the upper end thereof for receiving a product and delivering the same into the hollow mandrel.
  • the mandrel further includes a lower end 20.
  • the shape of the bottom of the mandrel determines the configuration of the finished package. For example, if one desired a round flat bottom then one would employ a round mandrel. However, in a preferred embodiment of the invention, the mandrel will have a generally rectangular cross-section with two opposing sides having slightly indented V shaped grooves for cooperating with gusseting bars 35, in a manner to be described in greater detail below for forming a gusseted package.
  • a platen 30 including a connecting rod 31 rigidly connected thereto, the combination of platen 30 and connecting rod 31 being mounted for pivotal movement about a stationary pivot axis 32.
  • Connecting rod 31 is in turn pivotally connected to a piston rod 33 which is in turn connected to a double acting piston in the cylinder 34.
  • the operation of the invention is as follows.
  • the film passes over the former and is shaped into tubular form.
  • the longitudinal sealing means 17 seals the longitudinal edges of the film together.
  • the sealing jaws 22a and 2212 are forming a transverse seal which will constitute the top of package A and the bottom of package B.
  • the former 16 is moved upwardly to provide an additional length of tubular material which will subsequently form package C.
  • the package A has been separated.
  • the former has then been moved upwardly so that the lower end of package B engages the lower end of the mandrel 19. This action will tend to flatten the bot tom of package B.
  • the piston in cylinder 34 is moved to the right to raise the platen thereby pressing the lower end of package B against the lower end of the mandrel 20.
  • Product may be introduced into the funnel 21 as soon as the bottom of package B has engaged the bottom 20 0f the mandrel 19.
  • the platen 30 is lowered after which the former is also lowered to place the length of material constituting package B to a level below that of the sealing jaws 22a and 22b.
  • the sealing jaws are then operated to close the package B and form the bottom seal of package C thereby attaining the position of FIG. 1 after which the cycle is repeated.
  • the method and apparatus of the present invention may be employed in the production of either a pillow type package or a gusseted type package.
  • a pillow type package the two ends of the lower seal would project laterally after the said lower seal has been folded up to the package.
  • Suitable means may be employed for folding these ends up to and attaching them against the sides of the formed package.
  • means may be employed for folding these ends under the package before the package engages the flat surface of platen 30.
  • FIG. 7 illustrates the shape of the mandrel and the procedure for forming a gussetted type package.
  • the upper end portion 19 of the mandrel adjacent the funnel 21 and extending through the former is of a shape so that it passes through the former with clearance and does not interfere with the reciprocatory movement of the former.
  • the end portion 20 of the mandrel is generally rectangular of the shape to give the package the desired configuration.
  • the sides of the end portion 20 include a pair of V shaped indentations to form gussets in the tubular shaped packag ing film. V shaped gusseting bar then push the sides of the tubular length 18 inwardly to form the gussets.
  • the sealing jaws 22a and 2212 then form the transverse seal between packages B and C thereby permanently forming the gussets in the vicinity of the said transverse seal.
  • the longitudinal seal would be located on the front or back of the package.
  • One advantage of this would be to leave the front and back of the package free for the advertising message.
  • a method of packaging comprising forming a continuous web of material into a tubular length of material by passing the web over a former and moving the formed tubular length of material downwardly, forming a package closing end seal across the tubular length of material, and flattening the end of the tubular length of material remote from the former by raising the former so that it carries the tubular length of material upwardly until the end of the inside of the tubular length of material remote from the former engages a stationary member located therein so that said stationary member applies pressure to the interior of the tubular length of material as it is being raised by the former to flatten the bottom of the tubular length of material, and hence form a flat package bottom.
  • a packaging apparatus comprising a former means for forming a continuous web of material into a tubular length of material by passing the web over the former, and means for moving the former tubular length of material downwardly relative to the former, sealing means for forming package closing and seals across the tubular length of material, and flattening means for flattening the end of the tubular length of material remote from the former, said flattening means comprising a stationary member located inside the tubular length of material and means for raising the former so that it raises the tubular length of material until the inside thereof engages the stationary member such that the said stationary member applies pressure to the interior of the tubular length of material as it is being raised upwardly by the former, thereby forming the said flattened bottom of the package.
  • step of flattening the remote end of the tubular length of material includes pressing the said remote end between the said end of the mandrel and a flat platen surface to press the last formed end seal fiat against the said remote end of the tubular length of material, thereby forming the said fiattened end.
  • the said end seals are formed by sealing means comprising a pair of opposing sealing jaws reciprocal towards each other to an operative position to form said seals, and away from each other to an inoperative position, the sealing jaws being prevented from moving in the direction of movement of the former, and wherein the step of moving the former comprises moving the said former so that the remote end of the tubular length of material moves to a point on the side of the sealing jaws closest to the former, said flat platen surface being adapted to be located at said point.
  • the method of claim 8 including the step of forming gussets in opposite sides of the tubular length of material.
  • the mandrel is generally rectangular in cross-section and includes a pair of V shaped grooves extending longitudinally of said mandrel on opposing sides thereof, and wherein the step of forming gussets in the tubular length material comprises pressing gusset bars against the tubular length of material thereby urging the same against the said grooves.
  • step of fiattening the remote end of the tubular length of material includes pressing the said remote end between the end of the mandrel and a flat platen surface to press the last formed end seal flat against the said remote end of the tubular length of material, thereby forming the completed flattened end.
  • the apparatus of claim 13 including a platen having a flat surface movable into the path of movement of the remote end near the said lower end of the mandrel so that the said end of the mandrel can press the said remote end of the tubular length of material against the said fiat platen surface.
  • opposing sides of the mandrel include indented V shaped grooves, and gusset bars are provided for pressing the tubular length of material into the said grooves to form the said gussets.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
US691870A 1967-12-19 1967-12-19 Method and apparatus for packaging with stationary inner mandrel for forming flat bottom package Expired - Lifetime US3543468A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US69187067A 1967-12-19 1967-12-19

Publications (1)

Publication Number Publication Date
US3543468A true US3543468A (en) 1970-12-01

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Family Applications (1)

Application Number Title Priority Date Filing Date
US691870A Expired - Lifetime US3543468A (en) 1967-12-19 1967-12-19 Method and apparatus for packaging with stationary inner mandrel for forming flat bottom package

Country Status (5)

Country Link
US (1) US3543468A (es)
CH (1) CH482577A (es)
FR (1) FR1579993A (es)
GB (1) GB1227575A (es)
SE (1) SE346962B (es)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4817366A (en) * 1986-12-17 1989-04-04 International Paper Company High capacity package seal, sever, and brick apparatus and method
US4996825A (en) * 1989-01-31 1991-03-05 Kliklok Corporation Combined blousing, stripping and sealing for bag forming and method
US5062253A (en) * 1989-01-31 1991-11-05 Kliklok Corporation Combined film feeding stripping and sealing for bag forming and method
US5255497A (en) * 1991-11-04 1993-10-26 Triangle Package Machinery Co. Flat sided forming tube for a form-fill-seal machine
US5533322A (en) * 1994-03-11 1996-07-09 Kliklok Corporation Continuous vertical form-fill-seal packaging machine with constant motion carriage
CN1079177C (zh) * 1994-06-23 2002-02-13 魁北克水电公司 用于多相电机定子框架的导线单元

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3221474A (en) * 1961-06-13 1965-12-07 Int Paper Canada Automatic packaging machine
US3263391A (en) * 1963-05-03 1966-08-02 Wallsten Hans Ivar Method of manufacturing packages

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3221474A (en) * 1961-06-13 1965-12-07 Int Paper Canada Automatic packaging machine
US3263391A (en) * 1963-05-03 1966-08-02 Wallsten Hans Ivar Method of manufacturing packages

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4817366A (en) * 1986-12-17 1989-04-04 International Paper Company High capacity package seal, sever, and brick apparatus and method
US4881360A (en) * 1986-12-17 1989-11-21 International Paper Company High capacity package seal, sever, and brick apparatus and method
US4996825A (en) * 1989-01-31 1991-03-05 Kliklok Corporation Combined blousing, stripping and sealing for bag forming and method
US5062253A (en) * 1989-01-31 1991-11-05 Kliklok Corporation Combined film feeding stripping and sealing for bag forming and method
US5255497A (en) * 1991-11-04 1993-10-26 Triangle Package Machinery Co. Flat sided forming tube for a form-fill-seal machine
US5533322A (en) * 1994-03-11 1996-07-09 Kliklok Corporation Continuous vertical form-fill-seal packaging machine with constant motion carriage
CN1079177C (zh) * 1994-06-23 2002-02-13 魁北克水电公司 用于多相电机定子框架的导线单元

Also Published As

Publication number Publication date
GB1227575A (es) 1971-04-07
CH482577A (fr) 1969-12-15
FR1579993A (es) 1969-08-29
DE1815031A1 (de) 1969-07-17
SE346962B (es) 1972-07-24

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Legal Events

Date Code Title Description
AS Assignment

Owner name: MIRA-PAK MACHINERY CO., INC.

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:HERR, JAMES S., INDIVIDUALLY AND AS TRUSTEE;REEL/FRAME:003904/0233

Effective date: 19801015

Owner name: MIRA-PAK MACHINERY CO., INC., A TX CORP.

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:HERR, JAMES S., INDIVIDUALLY AND AS TRUSTEE;REEL/FRAME:003904/0233

Effective date: 19801015