US3841057A - Device for feeding wrappers in a packaging machine - Google Patents

Device for feeding wrappers in a packaging machine Download PDF

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Publication number
US3841057A
US3841057A US00371689A US37168973A US3841057A US 3841057 A US3841057 A US 3841057A US 00371689 A US00371689 A US 00371689A US 37168973 A US37168973 A US 37168973A US 3841057 A US3841057 A US 3841057A
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US
United States
Prior art keywords
wrapper sheet
wrapper
folding channel
feeding
complemental
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
US00371689A
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English (en)
Inventor
P Engeler
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.)
Schweizerische Industrie Gesellschaft
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Schweizerische Industrie Gesellschaft
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.)
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Publication date
Application filed by Schweizerische Industrie Gesellschaft filed Critical Schweizerische Industrie Gesellschaft
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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
    • B65B61/00—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages
    • 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
    • B65B41/00—Supplying or feeding container-forming sheets or wrapping material
    • B65B41/12—Feeding webs from rolls
    • B65B41/16—Feeding webs from rolls by rollers

Definitions

  • This invention relates to a device for feeding wrappers in a packaging machine and is of the type in which each wrapper is severed from a wrapper sheet after the lower, leading end of the wrapper sheet is introduced by a feeding mechanism transversely through a folding channel and through a slot provided in the travelling path of the articles to be packaged. In the folding channel the wrapper is folded in a U-shaped manner about the front (leading) face of the article.
  • complemental wrapper feeding means are provided which, in addition to advancing the wrapper sheet, provide it with provisional longitudinal corrugations which disappear from the individual wrapper upon its severance from the wrapper sheet.
  • FIG. 1 is a schematic side elevational view of the wrapper feeding device according to the invention.
  • FIG. 2 is a partial front elevational view taken in the direction of arrow II of FIG. 1.
  • FIG. 3 is a plan view of a detail taken in the direction of arrow III of FIG. 1.
  • the wrapper feeding device shown therein includes a feeding drum 1 and a series of feeding rollers 2 (only one shown) which are mounted on a shaft 3 extending parallel to the axis of the drum 1.
  • the cylindrically curved surface of the drum 1 cooperates withthe cylindrically curved surface of the rollers 2.
  • a wrapper sheet 4 of indefinite length which is pinched and advanced by the feeding assembly 1, 2 which draws the wrapper sheet 4 from a storage reel (not shown).
  • the drum 1 is provided with aplurality of axially spaced peripheral ribs 5 (only one shown) which may be formed, for example, of rings force-fitted on the drum surface. As best illustrated in FIGS. 2 and 3, with each rib 5 there is associated a pair of rollers 2 so that at either side of a rib 5 one roller 2 presses the wrapper sheet 4 against the drum 1.
  • the drum 1 is at each end (only one shown) mounted in a bearing 7 by a stub shaft 6, one of which is driven synchronously with the operational cycle of a packaging machine 8.
  • a longitudinally extending corrugation 9 is formed in the wrapper sheet 4, as it may be best observed from FIG. 3.
  • the plurality of rollers 2 may be replaced by a single-piece feed drum, similar to the feed drum 1. Such a structure would then have, in registry with each circumferential rib 5 on the drum 1, a circumferential groove into which the associated rib 5 would project with a slight clearance.
  • any other complemental feeding devices such as complemental endless belts may be used which are designed in such a manner that, similarly to the described drums, they provide reinforcing longitudinal corrugations 9 which disappear when the wrapper 10 is folded, as it will be described hereinafter.
  • the purpose of the longitudinal, parallel-extending corrugations is to temporarily stiffen the wrapper 10 to prevent a significant deformation thereof and thus to prevent it from changing its initial vertical position which it must assume at the beginning of the wrapping operation proper.
  • FIG. 1 depicts the moment when an end portion of the sufficiently downwardly advanced wrapper sheet 4 has just been severed by means of the cutting device 11 to form an individual wrapper 10.
  • the movable blade 25 has moved immediately thereafter in the rearward direction so as to again free the travelling path of the wrapper sheet 4.
  • the packaging machine 8 includes an inlet table 12 on which the article 13 to be packaged (in the present example it consists of a group of individual articles) is moved by means of a pusher 14 against the wrapper 10 which is in its initial position.
  • the lower, leading portion of the wrapper 10 is, in thisinitial position, passing through a slot 15 and is oriented downwardly.
  • the wrapper sheet 4 is severed into a wrapper 10 by the cutting mechanism 11 after the lower leading edge of the wrapper sheet 4 is introduced into the slot 15.
  • the slot 15 is provided in the travelling path of the article 13 between the intake table 12 and a trap door .17 which in its closed position is coplanar with the intake table 12 and a discharge table 16.
  • the discharge table 16 and the trap door 17 constitute the floor of a folding channel 18 which has a ceiling 19.
  • the wrapper I0 is, in a known manner, folded in a U-shaped manner about the front face of the article 13.
  • the wrapping is completed also in a conventional manner.
  • the trap door 17 is pivotally secured at 20 and is further attached at 21 to a piston rod 22 forming part of a pneumatic power cylinder 23.
  • a piston rod 22 forming part of a pneumatic power cylinder 23.
  • the trap door 17 is pivoted downwardly into its dash-dotted position indicated at 17' thus enlarging the width of the slot m 15'.
  • the slot 15 is very narrow; usually narrower than one half the thickness of the individual articles forming the article group 13.
  • a stationary vertical guiding plate 26 which, at its face oriented towards the wrapper sheet, is provided with guide ribs 27 which cooperate with the corrugations 9 in the wrapper sheet 4.
  • guide ribs 27 which cooperate with the corrugations 9 in the wrapper sheet 4.
  • each guiding rib 27 of the guiding plate 26 may be additionally provided two stationary guiding strips which, in the vicinity of each rib 27 constrain the wrapper sheet 4 to lie flat against the guiding plate 26.
  • the guiding plate 26 has a rectangular cutout 28 (FIG. 2) in the area of which the configureding wrapper sheet 4 is in engagement with a vertical reach 29 of an endless belt 30.
  • the latter is trained about two reversing rolls 31 and 32 which are supported in two brackets 33 and 34 which in turn are affixed to a machine frame portion 35.
  • the latter also supports a bearing 36 in which there is positioned a drive shaft 37 of the reversing roller 31.
  • FIG. 1 the components 35 and 36 have been omitted to more clearly illustrate the endless belt 30.
  • the drive shaft 37 carries a sprocket wheel 38 which is drivingly coupled to the stub shaft 6 by means of a chain 39 and a sprocket wheel 40 affixed to the stub shaft 6 of the feeding drum 1.
  • the complemental feeding mechanism 2,3 may be driven by separate drive means (not shown) in a direction opposite to the drum 1 or may be driven by the drum 1 by means of friction.
  • a spraying device 41 by means of which a strip-shaped adhesive layer is applied to the wrapper sheet 4 during its advance.
  • the folded wrapper maybe provided with a longitudinal, sealed seam.
  • the spraying device 41 includes a spray nozzle 42, the discharge opening of which is illustrated by a dot in FIG. 2.
  • the adhesive impinges on the wrapper sheet 4
  • the latter (which is not shown in FIG. 2) is urged against the reach 29 of the endless belt 30, the travelling speed of which is identical to the advancing speed of the wrapper sheet 4 which, in turn, is identical to the circumferential speed of the drum 1.
  • the spraying device 41 and the associated cutout 28 and support belt 30 may be omitted if the package is not to be provided with a glued seam which is the case, for example, with cold-sealable wrappers or if the gluing is to be effected by means of subsequently applied adhesive strips.
  • a packaging machine for wrapping articles in a wrapper said machine being of the type that has a folding channel provided with a floor; a slot provided in the floor of the folding channel and extending thereacross; a feeding device for advancing a wrapper sheet of indefinite length transversely through the folding channel and introducing the leading edge of said wrapper sheet into the slot; a cutting mechanism disposed between said feeding device and said folding channel for severing said wrapper sheet when its leading edge is introduced into the slot; and means for moving an article along the folding channel against the wrapper positioned across the folding channel for folding the wrapper about the leading face of the article; the improvement comprising: complemental feeding means through which said wrapper sheet passes and by which said wrapper sheet is engaged on both of its faces, said complemental feeding means forming part of said feeding device; means on said complemental feeding means for providing at least one corrugation in said wrapper sheet, said corrugation extending longitudinally in the direction of feed of said wrapper sheet, whereby said wrapper sheet is rigidized downstream of said feeding assembly and said
  • rollers are arranged on either side of said circumferential rib for urging said wrapper sheet into contact with said face of said drum adjacent either side of said circumferential rib.
  • a packaging machine for wrapping articles in a wrapper said machine being of the type that has a folding channel provided with a floor; a slot provided in the floor of the folding channel and extending thereacross; a feeding device for advancing a wrapper sheet of indefinite length transversely through the folding channel and introducing the leading edge of said wrapper sheet into the slot; a cutting mechanism disposed between said feeding device and said folding channel for severing said wrapper sheet when its leading edge is introduced into the slot; and means for moving an article along the folding channel against the wrapper positioned across the folding channel for folding the wrapper about the leading face of the article; the improvement comprising: complemental feeding means through which said wrapper sheet passes and by which said wrapper sheet is engaged on both of its faces, said complemental feeding means forming part of said feeding device; means on said complemental feeding means for providing at least one corrugation in said wrapper sheet, said corrugation extending longitudinally in the direction of feed of said wrapper sheet, whereby said wrapper sheet is rigidized downstream of said feeding assembly and said

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Basic Packing Technique (AREA)
US00371689A 1972-07-03 1973-06-20 Device for feeding wrappers in a packaging machine Expired - Lifetime US3841057A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH992972A CH553688A (de) 1972-07-03 1972-07-03 Vorrichtung zum zufuehren von einschlagfolien an einer verpackungsmaschine.

Publications (1)

Publication Number Publication Date
US3841057A true US3841057A (en) 1974-10-15

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ID=4357207

Family Applications (1)

Application Number Title Priority Date Filing Date
US00371689A Expired - Lifetime US3841057A (en) 1972-07-03 1973-06-20 Device for feeding wrappers in a packaging machine

Country Status (4)

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US (1) US3841057A (de)
JP (2) JPS4943785A (de)
CH (1) CH553688A (de)
DE (1) DE2325875A1 (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3967767A (en) * 1973-12-20 1976-07-06 G. D Societa Per Azioni Device for severing and feeding flaccid wrapping sheets
US5067312A (en) * 1989-12-05 1991-11-26 Apollo B.V. Process and device for packing objects in stretch film
US5386679A (en) * 1991-12-03 1995-02-07 G. D. Societa' Azioni Method and device for feeding a wrapping machine with portions of wrapping material
US20040072664A1 (en) * 2001-02-14 2004-04-15 Mario Spatafora Method and a device for checking wrapping material in a packaging machine
US20070272788A1 (en) * 2006-05-26 2007-11-29 Mtc- Macchine Trasformazione Carta S.R.L. Paper feeding device for a banding machine for logs of sheet material
CN105059606A (zh) * 2015-05-12 2015-11-18 上海松川远亿机械设备有限公司 一种适用于物料包装的切膜拉膜方法

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CS179234B1 (en) * 1975-11-28 1977-10-31 Karel Petru Equipment for continuous supply of packing material
JPS5299974U (de) * 1976-01-27 1977-07-28
US5103617A (en) * 1991-03-06 1992-04-14 Quipp Systems, Inc. Method and apparatus for wrapping signatures and the like
DE102011118592A1 (de) * 2011-11-15 2013-05-16 Alpma Alpenland Maschinenbau Gmbh Verpackungsmaschine

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2625779A (en) * 1946-11-19 1953-01-20 Bank Of America Nat Trust & Savings Ass Paper feeding mechanism for box wrapping machines
US2961814A (en) * 1956-05-29 1960-11-29 Redmond Benjamin Packaging machine
GB890856A (en) * 1958-07-08 1962-03-07 Gottfried Ruegenberg Method of and apparatus for manufacturing longitudinally corrugated webs of paper, carton, cardboard, plastics or the like
US3042397A (en) * 1959-01-21 1962-07-03 Burroughs Corp Sheet feeding mechanism
US3125841A (en) * 1964-03-24 Package boxing mechanism
US3361425A (en) * 1965-10-14 1968-01-02 Benitez Ramon Longitudinal folder for making paper napkins and the like articles from web material
US3387429A (en) * 1964-08-28 1968-06-11 Reynolds Metals Co Web feeding method and apparatus
US3415509A (en) * 1966-10-13 1968-12-10 Farrington Electronics Inc Document handling apparatus
US3611882A (en) * 1969-05-14 1971-10-12 Scandia Packaging Mach Web-feeding means and method

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3323273A (en) * 1963-11-22 1967-06-06 Gen Foods Corp Packaging apparatus and process

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3125841A (en) * 1964-03-24 Package boxing mechanism
US2625779A (en) * 1946-11-19 1953-01-20 Bank Of America Nat Trust & Savings Ass Paper feeding mechanism for box wrapping machines
US2961814A (en) * 1956-05-29 1960-11-29 Redmond Benjamin Packaging machine
GB890856A (en) * 1958-07-08 1962-03-07 Gottfried Ruegenberg Method of and apparatus for manufacturing longitudinally corrugated webs of paper, carton, cardboard, plastics or the like
US3042397A (en) * 1959-01-21 1962-07-03 Burroughs Corp Sheet feeding mechanism
US3387429A (en) * 1964-08-28 1968-06-11 Reynolds Metals Co Web feeding method and apparatus
US3361425A (en) * 1965-10-14 1968-01-02 Benitez Ramon Longitudinal folder for making paper napkins and the like articles from web material
US3415509A (en) * 1966-10-13 1968-12-10 Farrington Electronics Inc Document handling apparatus
US3611882A (en) * 1969-05-14 1971-10-12 Scandia Packaging Mach Web-feeding means and method

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3967767A (en) * 1973-12-20 1976-07-06 G. D Societa Per Azioni Device for severing and feeding flaccid wrapping sheets
US5067312A (en) * 1989-12-05 1991-11-26 Apollo B.V. Process and device for packing objects in stretch film
US5386679A (en) * 1991-12-03 1995-02-07 G. D. Societa' Azioni Method and device for feeding a wrapping machine with portions of wrapping material
US20040072664A1 (en) * 2001-02-14 2004-04-15 Mario Spatafora Method and a device for checking wrapping material in a packaging machine
US7406809B2 (en) * 2001-02-14 2008-08-05 G.D S.P.A. Method and a device for checking wrapping material in a packaging machine
US20070272788A1 (en) * 2006-05-26 2007-11-29 Mtc- Macchine Trasformazione Carta S.R.L. Paper feeding device for a banding machine for logs of sheet material
US7503153B2 (en) * 2006-05-26 2009-03-17 Mtc-Machine Trasformazione Carta S.R.L. Paper feeding device for a banding machine for logs of sheet material
CN105059606A (zh) * 2015-05-12 2015-11-18 上海松川远亿机械设备有限公司 一种适用于物料包装的切膜拉膜方法
CN105059606B (zh) * 2015-05-12 2017-10-24 上海松川远亿机械设备有限公司 一种适用于物料包装的切膜拉膜方法

Also Published As

Publication number Publication date
JPS4943785A (de) 1974-04-24
DE2325875A1 (de) 1974-01-17
JPS49112659U (de) 1974-09-26
CH553688A (de) 1974-09-13
JPS5330530Y2 (de) 1978-07-29

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