US3901002A - Feed advance drive mechanism especially for a packaging machine - Google Patents

Feed advance drive mechanism especially for a packaging machine Download PDF

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Publication number
US3901002A
US3901002A US452748A US45274874A US3901002A US 3901002 A US3901002 A US 3901002A US 452748 A US452748 A US 452748A US 45274874 A US45274874 A US 45274874A US 3901002 A US3901002 A US 3901002A
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US
United States
Prior art keywords
drive
motor
drive motor
drive mechanism
switching
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
US452748A
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English (en)
Inventor
Arthur Vetter
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.)
Multivac Sepp Haggenmueller GmbH and Co KG
Original Assignee
Multivac Sepp Haggenmueller GmbH and Co KG
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 Multivac Sepp Haggenmueller GmbH and Co KG filed Critical Multivac Sepp Haggenmueller GmbH and Co KG
Application granted granted Critical
Publication of US3901002A publication Critical patent/US3901002A/en
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
    • B65B65/00—Details peculiar to packaging machines and not otherwise provided for; Arrangements of such details
    • B65B65/02—Driving gear
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/19—Gearing
    • Y10T74/19555—Varying speed ratio
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/19—Gearing
    • Y10T74/1987—Rotary bodies
    • Y10T74/19884—Irregular teeth and bodies
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/444—Tool engages work during dwell of intermittent workfeed
    • Y10T83/4493—Tool motion initiates work feed and vice versa

Definitions

  • a packing machine of this type is described, for example, in'U.S. Pat. No. 3,061,984.
  • a further example of such a packing machine is described in French Patent application No. 7,240,076.
  • the feed advance is accomplished with a comparatively high acceleration at the start and with a relatively high deceleration at the end. of the feed advance cycle. This can cause spilling where liquids or granular materials are packaged and the containers are still open.
  • a feedadvance drive mechanism for a packing machine with a non-uniform turning movement First switching means are provided which in response tothe drive means switch the motor off.
  • a control arrangement is provided .for controlling the packing tools of the packing machine.
  • the control arrangement includes second; switching, means for reenergizing the drive motor after the functions of the packing tools have been completed.
  • said tools include, for example, tools for forming and sealing a package.
  • the first switching means for switching the drive motor off is arranged in such a manner that the drive motor is switched off at the instant of the greatest rotational speed ratio of the gear drive.
  • the drive motor is switched off at the instant when the ratio of the speed of an output drive shaft to the speed of the motor isthe greatest.
  • the feed advance drive mechanism is further arranged so that the controlarrangement initiates the operation of the package forming or sealing tool means at the instance when the drive motor is switched off.
  • the contol arrangement switches the drive motor on again when the functions of the forming and/or sealing toolshave been completed.
  • the drive motor is preferably a braking motor.
  • the wheel drive means of the feed advance drive mechanism in accordance with the invention may be gears.
  • two elliptical spur gears may be employed whereby the rotational axes of the elliptical gears are located at the focus points of the respective ellipses.
  • the gear drive may provide a non-uniform turning movement by employing two oval gears having central turning axes.
  • a non-uniform turning movement may be accomplished by employing a normal circular gear having an eccentric rotational axis and meshing with an oval gear having a central rotational axis.
  • FIG. 1 illustrates a feed advance drive mechanism in accordance with one embodiment of the invention employing two elliptical gears, whereby the rotational axes of the gears are located at a respective focus point of the corresponding ellipses;
  • FIG. 2 is a plan view of the mechanism of FIG. 1 as viewed in the direction of the arrow A in FIG. 1;
  • FIG. 3 illustrates a modification of the mechanism of FIG. 1 employing a pair of oval gears each having a central rotational axis;
  • FIG. 4 is a view of a further modification of the feed advance drive mechanism of FIG. 1, employing a circulargear having an off center turning axis, and an oval gear having a central turning axis; and
  • FIG. 5 is a simplified circuit diagram of a control apparatus that may be employed in the arrangements of FIGS. 1 to 4.
  • FIGS. 1 and 2 illustrate a feed advance drive mechanism in accordance with one embodiment of the invention.
  • a drive motor 1 preferably a braking motor
  • the support 20a is part of the frame structure not shown.
  • a sprocket wheel 4 is rigidly mounted on a shaft 5, the shaft 5 being journaled for rotation in a frame plate 20, as shown in FIG. 2.
  • the support member 20a may be secured to the base plate 20 by any suitable means.
  • the drive motor 1 is provided with a drive sprocket wheel 2.
  • a roller chain 3 connects the sprocket 4 by means of the sprocket 2.
  • An elliptical gear wheel 6 is also secured to the shaft 5.
  • the turning orrotational axis of the elliptical gear 6 is located at one of the focus points of the respective ellipses.
  • a second elliptical gear 7 is affixed to a shaft 8, the shaft 8 being joumaled for rotation in the base plate 20.
  • the elliptical gear 7 meshes with the elliptical gear 6.
  • the rotational axis of the gear 7 is also located at one of the focus points of the ellipses of this gear 7.
  • An exchangeable circular gear 9 is removably affixed to the shaft 8.
  • a nut 8a may be provided on the end of the shaft 8 in order to exchange gear 9 for another gear of a different size.
  • a support member 14a is pivotally mounted on the shaft 15 between the spur gear 13 and the base plate 20, please see FIG. 2.
  • a spur gear 10, meshing with the exchangeable gear 9 is rotatably supported on a journal 12 carried by the support member 14a.
  • A-spur gear 11 mounted to rotate with the spur gear on the journal 12 meshes with the spur gear 13.
  • the support member 14a is provided with an arcuate slot 14b.
  • a clamping screw 140 extends through the slot 14b and is threaded in the base plate 20.
  • the support 14a may be shifted whereby the axis of the gears 10 and 11 is rotated aboutthe axis of the spur gear 13 in order to accommodate gears 9 of different sizes.
  • the support 14a is secured in the new position by tightening the clamping'screw 14c again.
  • Sprocket wheels 16 areaffixed to the shaft on the side of the base plate opposite thespur gear 13 and endless roller chains 17 are provided on the sprockets 16, whereby the sprockets l6 drive the chains 17.
  • the endless chains 17 carry suitable clamping devices (not shown) for moving the lower web of packing material through the packing machine.
  • the shaft 15 is also journaled "in a further base plate 20b as appears in FIG. 2.
  • the base plates 20 and 20b are fixedly mounted as part of the housing (not shown) of the packing machine.
  • a lower packing web 50 from a supply roll 51 is directed, for example, by means of roller 52 to the upper side of the drive chain 17, as indicated by the arrow 53, to pass a first working station 54.
  • the working station 54 may, for example, be comprised'o'f suitable working tools for forming a package from the'lower packing web.
  • an upper packing web 55 is directed to the chains 17 from a supply roll 56, for example, by means of rollers 57, in the direction indicated by arrow 58.
  • the web 55, and the web 50 after having passed the station 54, are then directed on the chain 17, with the upper web overlying the lower web 50 to a further work station 59, for example, a sealing station.
  • the means for feeding the webs to the conveyor and the processing of the webs'to forn'i packages is conventional.
  • a switching cam 18 is affixed to the sprocket 4 for engaging a tripping switch in a control apparatus 19 mounted, for example, to the support member 20a.
  • the cam 18 is so positioned that it will engage the switch in the control apparatus 19 at the instant of the greatest rotational speed ratio between the gears 6 and 7 in order to switch off the braking motor 1 at said instant time.
  • the control apparatus causes the operation of the tools 54 and 59 of the packing machine, for the forming of containers from the lower web of the packing material and for the sealing of the filled containers with the upper web of the "packing material, if desired, after an evacuation of the containers.
  • the control ap'-' paratus 19' comprises further' switching means for switching on the brake motor 1 following the termina tion of the tool operation.
  • FIG. 3' shows a modification of the arrangement of FIGS. 1 and 2, whereinthe elliptical gears 6 and 7 have been replaced by oval gears 6b and 7b.
  • the oval gears 4 6b, 7b are affixed to the shafts 5,8 at'the respective central rotational axes of the oval gears.
  • the elliptical gears 6,7 have been replaced by-a normal circular gear 60 and an oval gear 7c meshing with the circular gear 6c.
  • the circular gear 60 is affixed tothe shaft 5' at an eccentric rotational axis
  • the oval gear is affixed to the shaft 8 at a central rotational axis.
  • the switching circuit of FIG. 5 embodies an example of the control means 19.
  • An ON-OFF switch 30 initially starts the motor 1, whereby the cam 18' rotates with the gear 4 until it actuates a switch 18" to open contact 31 and to close contacts 32 and '33. Opening of the contact 31 stops the motor 1.
  • Closing of contact 32 prepares a bypass circuit 34 for restarting the motor 1 at the end of an operational cycle of the tool drive.
  • Closing'of contact 33 starts the tool'drive.
  • a cam 38 temporarily operates a switch '37 to close contact 35 and to open contact 36 whereby the motor 1 is restarted and thetool driveis stopped.
  • the restarting 'of the motor 1' moves the cam 18 off the switch 18 and the motor 1 will run again; until cam 18 again actuates the switch 18'.
  • the motor 1 will run when the tool drive is stopped and vice versa.
  • a web feed advance drive mechanism for a packing machine for forming packages from a pair of webs of packing material drawnfrom respective supply rolls, said packing machine being of the type having working tools for forming and sealing said webs, wherein the feed advance drive includes a drive motoig an output shaft, and means driving said output shaftby said 1110-.
  • wheeled drive means coupled to said drive motor and to said output shaft for operating said output shaft with 'a non-uniform rotational speed
  • first control means operatively responsive to said wheeled drive means for switching said drive motor off
  • further control means responsive to a working tool in said packing machine for re-energizing said drive motor
  • said first control means for switching said motor off comprising means responsive to said wheeled drive means for switching said motor off at the instant of the greatest rotational speed ratio of said wheeled drive means.
  • said further control means for said working tools comprises means for energizing said working tools substantially with the switching off of said drive motor.
  • said drive gear wheels comprises a pair of intermeshing elliptical spur gears each having its respective rotational axis at one of its focus points of the ellipses for providing said non-uniform rotational speed.
  • said drive gear wheels comprise a circular gear wheel having an eccentric rotational axis and an oval gear wheel having a central rotational axis, said gear wheels meshing with each other for providing said non-uniform rotational speed.
  • a packing machine of the type comprising conveyor means, means for feeding an upper and a lower web of packing material to said conveyor, working tool means for processing said webs as they are driven by said conveyor, a drive motor, and means coupling said drive motor to drive said conveyor; the improvement wherein said coupling means comprises a pair of gears with intermeshed teeth coupled to non-uniformly drive said conveyor means, whereby the speed ratio between the rotational speed of said motor and the speed of said conveyor varies periodically, said coupling means further comprising switching means for switching said drive motor off when said ratio reaches its maximum value and wherein said packing machine further comprises means responsive to said working tool means for reenergizing said drive motor.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
  • Unwinding Webs (AREA)
US452748A 1973-03-23 1974-03-20 Feed advance drive mechanism especially for a packaging machine Expired - Lifetime US3901002A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732314462 DE2314462A1 (de) 1973-03-23 1973-03-23 Vorschubgetriebe fuer verpackungsmaschinen

Publications (1)

Publication Number Publication Date
US3901002A true US3901002A (en) 1975-08-26

Family

ID=5875634

Family Applications (1)

Application Number Title Priority Date Filing Date
US452748A Expired - Lifetime US3901002A (en) 1973-03-23 1974-03-20 Feed advance drive mechanism especially for a packaging machine

Country Status (9)

Country Link
US (1) US3901002A (sv)
JP (1) JPS5332749B2 (sv)
AT (1) AT340319B (sv)
CH (1) CH569624A5 (sv)
DE (1) DE2314462A1 (sv)
FR (1) FR2222272B3 (sv)
HU (1) HU171142B (sv)
IT (1) IT1008867B (sv)
SE (1) SE398864B (sv)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4691499A (en) * 1984-04-16 1987-09-08 Fuji Machinery Company, Ltd. Method of tensioning a web of packaging material
US5001887A (en) * 1988-02-25 1991-03-26 Krones Ag Hermann Kronseder Maschinenfabrik Method for applying a shrink sleeve to the closure end of a container and apparatus for performing such method
US5996312A (en) * 1998-06-15 1999-12-07 Tai E International Patent And Law Office Tension adjusting device for a packing machine using plastic film
US20020142873A1 (en) * 2001-01-26 2002-10-03 Jorg Oser Chain drive arrangement

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2861635A (en) * 1955-01-27 1958-11-25 United States Steel Corp Power transmitting apparatus
US3250055A (en) * 1962-03-12 1966-05-10 J M Nash Company Apparatus for making and filling packages in a continuous operation
US3295289A (en) * 1964-02-11 1967-01-03 Eastman Kodak Co Pouch forming and filling method and apparatus
US3393593A (en) * 1966-08-19 1968-07-23 Magnetic Metals Company Material feed apparatus
US3613470A (en) * 1968-09-07 1971-10-19 Tsudakoma Ind Co Ltd Gear transmission mechanism of a weaving loom
US3659398A (en) * 1970-11-02 1972-05-02 Battle Creek Packaging Machine Film feed and cutter for fold-over wrapping machine
US3793927A (en) * 1972-05-18 1974-02-26 A Emond Bag making machine

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2861635A (en) * 1955-01-27 1958-11-25 United States Steel Corp Power transmitting apparatus
US3250055A (en) * 1962-03-12 1966-05-10 J M Nash Company Apparatus for making and filling packages in a continuous operation
US3295289A (en) * 1964-02-11 1967-01-03 Eastman Kodak Co Pouch forming and filling method and apparatus
US3393593A (en) * 1966-08-19 1968-07-23 Magnetic Metals Company Material feed apparatus
US3613470A (en) * 1968-09-07 1971-10-19 Tsudakoma Ind Co Ltd Gear transmission mechanism of a weaving loom
US3659398A (en) * 1970-11-02 1972-05-02 Battle Creek Packaging Machine Film feed and cutter for fold-over wrapping machine
US3793927A (en) * 1972-05-18 1974-02-26 A Emond Bag making machine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4691499A (en) * 1984-04-16 1987-09-08 Fuji Machinery Company, Ltd. Method of tensioning a web of packaging material
US5001887A (en) * 1988-02-25 1991-03-26 Krones Ag Hermann Kronseder Maschinenfabrik Method for applying a shrink sleeve to the closure end of a container and apparatus for performing such method
US5996312A (en) * 1998-06-15 1999-12-07 Tai E International Patent And Law Office Tension adjusting device for a packing machine using plastic film
US20020142873A1 (en) * 2001-01-26 2002-10-03 Jorg Oser Chain drive arrangement
US6905432B2 (en) * 2001-01-26 2005-06-14 Jorg Oser Chain drive arrangement

Also Published As

Publication number Publication date
SE398864B (sv) 1978-01-23
ATA225074A (de) 1977-03-15
HU171142B (hu) 1977-11-28
JPS5332749B2 (sv) 1978-09-09
JPS49121687A (sv) 1974-11-20
DE2314462A1 (de) 1974-10-03
IT1008867B (it) 1976-11-30
FR2222272B3 (sv) 1977-01-07
CH569624A5 (sv) 1975-11-28
FR2222272A1 (sv) 1974-10-18
AT340319B (de) 1977-12-12

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