EP0967150B1 - Verfahren und Vorrichtung zum Fördern - Google Patents

Verfahren und Vorrichtung zum Fördern Download PDF

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Publication number
EP0967150B1
EP0967150B1 EP19990304923 EP99304923A EP0967150B1 EP 0967150 B1 EP0967150 B1 EP 0967150B1 EP 19990304923 EP19990304923 EP 19990304923 EP 99304923 A EP99304923 A EP 99304923A EP 0967150 B1 EP0967150 B1 EP 0967150B1
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EP
European Patent Office
Prior art keywords
gear
conveyor
conveyors
indexing
gears
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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
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EP19990304923
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English (en)
French (fr)
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EP0967150A1 (de
Inventor
Timothy Howard Drury
Kenneth Paul Mcdonald
Barry Charles Owen
John Allen Weber
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Elopak Systems AG
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Elopak Systems AG
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Priority claimed from US09/102,782 external-priority patent/US6129204A/en
Application filed by Elopak Systems AG filed Critical Elopak Systems AG
Priority to EP03019708A priority Critical patent/EP1378452A1/de
Publication of EP0967150A1 publication Critical patent/EP0967150A1/de
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Publication of EP0967150B1 publication Critical patent/EP0967150B1/de
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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
    • B65B65/00—Details peculiar to packaging machines and not otherwise provided for; Arrangements of such details
    • B65B65/02—Driving gear
    • 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
    • B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
    • B65B43/42—Feeding or positioning bags, boxes, or cartons in the distended, opened, or set-up state; Feeding preformed rigid containers, e.g. tins, capsules, glass tubes, glasses, to the packaging position; Locating containers or receptacles at the filling position; Supporting containers or receptacles during the filling operation
    • B65B43/52—Feeding or positioning bags, boxes, or cartons in the distended, opened, or set-up state; Feeding preformed rigid containers, e.g. tins, capsules, glass tubes, glasses, to the packaging position; Locating containers or receptacles at the filling position; Supporting containers or receptacles during the filling operation using roller-ways or endless conveyors

Definitions

  • This invention relates generally to an indexing conveying method and apparatus.
  • the invention relates more particularly to a conveying method and apparatus for moving open-topped liquid-filled containers through a series of processing steps while minimizing liquid slosh in the containers - both during conveyor indexing period dwell portions at processing positions where the processing steps are carried out and during indexing period move portions between processing positions.
  • the invention further relates more particularly to such conveying apparatus including a single power source arrangement for asynchronously operating dual indexing conveyors of the apparatus.
  • Machines for filling a plurality of containers with liquid products often include conveying apparatus configured to support and successively move containers through various stages of a filling and sealing operation.
  • a conveying apparatus of this type includes a drive system that indexes, i.e., intermittently moves, a conveyor to advance or successively move the containers first to a filling station where they are filled with the liquid, and then to other stations including top-forming,-heating and -sealing stations where open tops of the containers are closed and sealed.
  • the conveying apparatus then transports the filled, closed and sealed containers to a location where they are off-loaded for shipping or storage.
  • US-A-2,628,010 discloses a machine for alternately moving a pair of conveyors, including an air cylinder for alternately actuating a pair of ratchets adapted to rotate respective shafts each carrying a gear operatively connected to a series of gears and further shafts carrying end sprockets for engagement with chains of the pair of conveyors.
  • US-A-2,857,787 discloses a common drive mechanism for a pair of asynchronously intermittent, rotating turrets, wherein a portion of the kinetic energy of one turret undergoing deceleration is transferred to the other turret undergoing acceleration.
  • a drive shaft is connected to the two turrets by a pair of cams.
  • a motor is connected to a first speed reduction unit which, in turn, is connected to a second worm gear speed reduction unit, the output of which is connected by a chain to the drive shaft.
  • US-A-4,354,086 discloses a drive motor driving two separate cam drive gears for driving first and second transport devices via respective sprocket wheels.
  • US-A-4,790,123 discloses a method and machine for driving a pair of conveyors asynchronously.
  • the machine includes a motor, an indexing gear box operatively connected to the motor to convert the continuous rotation of the motor to an indexing movement and to transfer the movement to a. driving shaft located centrally in the machine and which, in turn, drives two parallel conveyors.
  • a typical conveying apparatus of the kind which includes a drive system that indexes a conveyor to advance containers stepwise may employ either a mechanical cam system or an electronically controlled servo drive motor to schedule conveyor motion and dwell according to a predetermined motion profile.
  • a motion profile is a sequence of accelerations, velocities and/or positions that the drive system imparts to the conveyor and containers.
  • Motion profiles for such systems are cyclical, with each operating cycle or indexing period comprising both a move portion and a dwell portion. Consequently, the motion of the conveyor alternates between dwell portions and motion portions.
  • the conveyor moves the containers between stations.
  • the dwell portion of each indexing period the conveyor holds the containers stationary at the stations so that operations may be performed on them.
  • Motion profiles also include a predetermined indexing pitch value, which is the distance the conveyor travels during the move portion of each indexing period. Conveyor positioning relative to the stations may also be included in a motion profile.
  • a constant speed drive motor is operatively connected to a cam having cam profile characteristics that cause the conveyor to advance intermittently according to a predetermined motion profile.
  • a conveyor apparatus of this type is disclosed in US-A-3,486,423.
  • an electronic control is programmed to cause the conveyor to move according to the predetermined motion profile.
  • the electronic control accomplishes this by controlling a servo drive motor that is operatively connected to the conveyor. Examples of such systems are disclosed in US-A-5,419,099, US-A-5,385,003 and US-A-5,826,406.
  • each container C and the liquid 112 inside each container C move in direction 113 and experiences accelerations Ax in a direction normal to that of gravity g.
  • a liquid surface 114 of the liquid 112 will be tilted at a tilt angle ⁇ such that the liquid surface 114 will be perpendicular to the vector sum of the accelerations Ax and g acting on the liquid 112. This is undesirable with respect to the packaging effort because it brings the liquid 112 closer to a container sealing area 116 of the container C. Therefore, it is desirable to minimize the tilt angle ⁇ of the liquid 112 during an indexing period.
  • conveyor motion profiles had been controlled by cams configured to execute generally continuous or "jerk-limited" acceleration profiles.
  • the acceleration profiles included gradual changes in acceleration rather than instantaneous or near-instantaneous acceleration changes of a finite value.
  • the differential of such an acceleration profile with respect to time results in a finite jerk value along the entire profile.
  • Continuous acceleration curves were an obvious choice for indexing liquid-filled containers because such profiles were known to reduce machine wear and vibration in high-speed motion-inducing machine applications.
  • Commonly employed motion profiles included those having continuous cycloidal, modified sine or modified trapezoidal acceleration curves. Polynomial position profiles that exhibit continuous acceleration were also known.
  • motion profiles having continuous acceleration curves are and have been known to reduce machine wear and vibration in motion-producing machine applications, in other machine applications, it is not unknown to employ motion profiles having discontinuous, i.e. " non -jerk limited", acceleration curves that include instantaneous or near-instantaneous acceleration changes of a finite value.
  • the differential of such an acceleration curve with respect to time results in an infinite jerk value at one or more points in the profile.
  • Commonly used motion profiles of this type have discontinuous acceleration profiles that produce parabolic motion profiles, simple harmonic motion profiles, and polynomial position profiles that correspond to discontinuous acceleration.
  • container conveying apparatus for moving liquid-filled open-topped containers, the apparatus comprising:
  • a method of moving liquid-filled open-topped containers comprising conveying the containers according to a predetermined motion profile comprising at least one indexing period, the or each indexing period comprising a move portion and a dwell portion, the conveying including discontinuously accelerating the containers during the or each indexing period move portion, and the discontinuous acceleration being describable by an acceleration curve that includes generally instantaneous acceleration changes of a finite value, whereby slosh is minimized and greater through-put is obtainable.
  • the apparatus may comprise a pair of asynchronously driven indexing conveyors, an actuating source operatively connected to two gear means mounted on respective shaft means for asynchronously driving the pair of conveyors, one-way clutch means operatively connected to each gear means, and control means operatively connected to the actuating source for controlling the acceleration and deceleration of each of the conveyors from and towards each of its dwell positions.
  • the apparatus may comprise first and second indexing conveyors, a continually reversing drive member, and first and second connecting means connecting the drive member to the respective conveyors in a manner which does not drive the conveyors backwards, and control means arranged to control the speed of the drive member in one sense and an opposite sense throughout substantially the whole of each decelerating movement and each accelerating movement of the drive member into and out of each dwell position of the drive member.
  • the apparatus may comprise first and second indexing conveyors, a continually reversing drive member, and first and second connecting means connecting the drive member to the respective conveyors in a manner which does not drive the conveyors backwards, the first and second connecting means including first and second toothed elements, respectively, and the drive member comprising a third toothed element in driving connection with the first and second toothed elements.
  • the method may comprise providing first and second indexing conveyors, a drive member, and first and second connecting means connecting the drive member to the respective conveyors, continually reversing the drive member so as to drive the conveyors alternately through the first and second connecting means in a manner which does not drive the conveyors backwards, and controlling the speed of the drive member in one sense and an opposite sense throughout substantially the whole of each decelerating movement and each accelerating movement of the drive member into and out of each dwell position of the drive member.
  • a preferred embodiment of the invention is a machine including an intermittently actuating single power source operatively connected to two gear devices, which may be respective single gears or respective sets of gears, having one-way clutches connected thereto, and being mounted on shafts which asynchronously drive a pair of indexing conveyors carrying open-topped cartons through filling and top-forming and-sealing stations.
  • the power source may be one of (1) a reversible servo unit having a gear thereon for meshing with respective gears of the two gear devices, and (2) a uni-directional rotating driver with linkage means connected from the driver to reciprocate a rack for meshing with respective gears of the gear devices.
  • Figures 1 and 2 illustrate a container-conveying apparatus 10 for supporting and successively moving containers C through a filling station 120 and a top-sealing station 122 in a container-forming and-sealing machine.
  • the apparatus 10 includes (1) a pair of side-by-side indexing conveyors 12 and 14 adapted to receive and convey the containers C; and (2) a drive system 16 adapted to drive the indexing conveyors 12 and 14 asynchronously during container-filling and top-folding and-sealing operations.
  • the apparatus 10 may include only one or more than two indexing conveyors.
  • the drive system 16 includes a reversible servo unit 18 driving a gear 20, which drives two gear devices 80 and 82 which drive the respective conveyors 12 and 14.
  • the device 80 comprises gears 22, 26 and 30, whilst the device 82 comprises gears 23, 28 and 32.
  • the gear devices 80 and 82 have respective shaft arrangements 84 and 86, of which the arrangement 84 comprises shafts 24 and 34 and the arrangement 86 comprises shafts 25 and 35.
  • the gears 26 and 30 and the gears 28 and 32 are respective pairs of intermeshing gears 88.
  • the two gears 22 and 23 mesh with the gear 20 and are mounted on the respective shafts 24 and 25.
  • the gears 26 and 28 are also mounted on the respective shafts 24 and 25 ( Figure 2).
  • the gears 26 and 28 mesh with the respective further gears 30 and 32 mounted on the respective shafts 34 and 35.
  • the shafts 24/34 and 25/35 rotate respective pulleys or sprockets 36 and 37 for driving two sides of the respective conveyors 12 and 14.
  • a one-way clutch 38 is operatively connected between each of the gears 22 and 23 and its associated shaft 24 or 25, to drive the conveyors 12 and 14 asynchronously via the shafts 24/34 and 25/35 in one direction, depending upon the direction of rotation of the reversible servo unit 18.
  • a suitable, optional, holding device 39 may be operatively connected to each of the gears 30 and 32 to maintain the dwell or stop positions of the conveyor 12 or 14.
  • the apparatus 10 may have the gear 20 mesh directly with each of the gears 26 and 28, as shown in Figure 2A, with a clutch 38 operatively connected to each of the gears 26,30,28 and 32 and their respective shafts.
  • the gear device 80 comprises the pair 88 of intermeshing gears 26 and 30 and the gear device 82 comprises the pair 88 of intermeshing gears 28 and 32.
  • a servo unit such as the reversible servo unit 18, typically may be variably accelerated and decelerated by virtue of an associated reversible servo unit controller, represented as 18' in Figure 1, programmed to use a parabolic curve or cam emulation.
  • an associated reversible servo unit controller represented as 18' in Figure 1
  • the approach toward and departure from each dwell position of each of the conveyors 12 and 14 assumes a controlled motion, serving to minimize "slosh" of the product within the liquid-carrying containers C during the intermittent conveying thereof.
  • the apparatus 10A includes (1) the pair of side-by-side indexing conveyors 12A and 14A, also adapted to receive and convey containers C; and (2) a drive system 40 adapted to asynchronously drive the indexing conveyors 12A and 14A during the processing of the containers.
  • the system 40 includes a uni-directionally rotating driver unit 42, which may be electrical, such as a step motor or a servo motor.
  • a crank arm 44 is connected to the driver unit 42 for rotation therewith.
  • a link 46 is pivotally connected between the distal end of the crank arm 44 and a two-sided toothed rack 48 and is adapted to move the rack 48 longitudinally back and forth.
  • the toothed rack 48 meshes at one side thereof with a gear 50 of the gear device 80 and at the other side thereof with a gear 52 of the gear device 82.
  • a one-way clutch which may be a ratchet-and-pawl, represented as 54, is operatively connected to each of the gears 50 and 52.
  • the gear device 80 comprises the gear 50 and gears 55 and 56, whilst the gear device 82 comprises the gear 52 and gears 64, 66 and 68.
  • the shaft arrangement 84 comprises the shafts 58 and 60, whilst the shaft arrangement 86 comprises the shafts 62, 67 and 69.
  • the gear device 80 includes the pair 88 of intermeshing gears 55 and 56 and the gear device 82 includes the pair 88 of intermeshing gears 66 and 68.
  • a servo controller represented as 40', is programmed to use a parabolic curve or cam emulation to control acceleration and deceleration, and, thereby, minimize liquid product slosh in the containers as they are being transferred from station to station.
  • the toothed rack 48 may be driven mechanically, such as by a cam, an indexer, or a geneva mechanism, represented as 48', machined to produce the required motion and driven by a constant speed drive motor.
  • the gears 50 and 55 are mounted on the same shaft 58.
  • the gear 55 meshes with the gear 56 mounted on the shaft 60.
  • the gears 55 and 56 rotate pulleys or sprockets 61 mounted on the respective shafts 58 and 60 for driving the two sides of the conveyor 12A carrying containers C therebetween on the pull stroke of the rack 48.
  • the gear 52 is mounted on the shaft 62.
  • the gear 64 is also mounted on the shaft 62 and meshes with the gear 66.
  • the latter gear 66 is mounted on the shaft 67 and meshes with the gear 68 mounted on the shaft 69.
  • the gears 66 and 68 rotate pulleys or sprockets 70 mounted on the respective shafts 67 and 69 for driving the two sides of the conveyor 14A, also carrying containers C therebetween, on the push stroke of the rack 48.
  • the one-way clutches 54 operatively connected between the gears 50 and 52 and their respective associated shafts 58 and 62 serve to drive the conveyors 12A and 14A asynchronously via the shafts 58/60 and 67/69 in one direction, depending upon the direction of movement of the rack 48.
  • the apparatus 10A may have the rack 48 mesh directly with each of the gears 55 and 64, with clutches 54 operatively connected between the gears 55,56,66 and 68 and their respective shafts 48,60,67 and 69.
  • the gear device 80 comprises the pair 88 of intermeshing gears 55 and 56, whilst the gear device 82 comprises the pair 88 of intermeshing gears 66 and 68 and the third gear 64.
  • the shaft arrangement 84 comprises the shafts 58 and 60, whilst the shaft arrangement 86 comprises the shafts 62,67 and 69.
  • An optional holding device 72 may be operatively connected to each of the gears 56 and 68 to maintain respective dwell positions of the conveyors 12A and 14A.
  • the container-conveying apparatus 10,10A each comprise two conveyors 12,14; 12A,14A.
  • other embodiments may include only a single conveyor. Therefore, for the sake of simplicity, the remainder of this description will refer only to conveyor 12 relative to the embodiments of Figures 1,2 and 2A and only to conveyor 12A relative to the embodiments of Figures 3,4 and 4A. Except where stated otherwise, all description relating to elements of the embodiments of Figures 1,2 and 2A is intended to apply equally to corresponding elements of the embodiments of Figures 3,4 and 4A.
  • the conveyor 12, 12A is configured to engage releasably a plurality of the containers C and the drive system 16,40 is operatively connected to the conveyor 12,12A.
  • the drive system 16,40 is configured to schedule conveyor motion and the motion of any containers C engaged by the conveyor 12,12A according to a predetermined motion profile shown in Figures 6 and 7.
  • the drive system 16,40 successively moves the containers C in an open-topped condition first to a filling station schematically shown at 120,120A in Figures 1 and 3, respectively, where they are filled with liquid.
  • the drive system 16,40 then moves the containers C to other stations including a top-sealing station schematically shown at 122,122A in Figures 1 and 3, respectively, where the open tops of the containers C are closed and sealed.
  • the motion profile comprises a plurality of sequential indexing periods, one of which is representatively shown at 124 in Figures 6 and 7.
  • Each indexing period 124 comprises a move portion 126 and a dwell portion 128 to produce conveyor motion that alternates between dwell portions 128 and motion portions 126.
  • the conveyor 12 moves the containers C between stations 120,122 during the move portion 126 of each indexing period 124 and holds the containers C stationary during the dwell portion 128 of each indexing period 124.
  • move portion 126 the containers C are accelerated in a generally discontinuous manner as can be described by the generally discontinuous acceleration curve shown in Figure 7.
  • each indexing period 124 preferably comprises a parabolic motion profile.
  • a parabolic motion profile is preferable, in part, because it is simple to produce.
  • a discontinuous acceleration curve that would be associated with such a parabolic motion profile is shown in Figure 7 and a corresponding velocity curve is shown in Figure 6.
  • Parabolic motion may not be desirable for high operating speed mechanical systems owing to the prospect of excessive wear caused by the acceleration discontinuities at the start and end of the constant acceleration segments of the motion.
  • parabolic motion can be used in low operating speed applications without experiencing a significant degree of these deleterious effects.
  • discontinuous acceleration curves such as the constant acceleration curve shown in Figure 7 are preferable to some of the standard continuous acceleration curves such as the modified sine curve shown in Figure 8 because the discontinuous acceleration curves deliver lower maximum slosh angles ⁇ during the dwell and move portions of each indexing period.
  • One explanation for this phenomenon is that, for a given amount of force applied over the move portion of an indexing period, the maximum or peak acceleration of a discontinuous acceleration curve is generally lower than that of a continuous acceleration curve because the maximum acceleration value of the corresponding motion profile is reached almost instantaneously.
  • acceleration remains constant at the maximum value until the end of the move portion of the indexing period.
  • acceptable results can be obtained with any number of other discontinuous acceleration curves to include those corresponding to position profiles described by one or more 7 th order polynomial equations.
  • the drive system 16,40 may comprise a uni-directionally rotating driver unit 48' in Figure 3 in the form of a cam operatively connected to a constant speed drive motor, the cam having cam profile characteristics that cause the conveyor 12 to advance intermittently according to a predetermined optimum motion profile.
  • the cam may be specially machined as part of an otherwise commercially available indexer.
  • the operating speed of the apparatus 10 is the cycle rate at which indexing periods 124 are repeated as can be expressed in cycles per minute, or cam rotations per minute.
  • the drive system 16, 40 may, alternatively, comprise a uni-directional rotating driver unit as shown at 42 in Figure 3 in the form of a servo motor operatively connected to the conveyor 12A.
  • An electronic controller 40' is connected to the servo motor 42 and is programmed to command the servo motor to move the conveyor 12A according to the predetermined motion profile.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Specific Conveyance Elements (AREA)
  • Basic Packing Technique (AREA)
  • Filling Of Jars Or Cans And Processes For Cleaning And Sealing Jars (AREA)

Claims (27)

  1. Behälterfördervorrichtung zum Bewegen flüssigkeitsgefüllter oben offener Behälter, mit:
    einem Taktförderer (12;12A) zum lösbaren Angreifen an mindestens einem der Behälter (C); und
    einem Antriebssystem (16;40), das betriebsmäßig mit dem Förderer (12; 12A) verbunden und zum Zeitsteuern der Bewegung des Förderers gemäß einem vorbestimmten Bewegungsprofil vorgesehen ist, das mindestens eine Taktperiode (124) aufweist, wobei die oder jede Taktperiode (124) einen Bewegungsteil (126) und einen Verweilteil (128) umfasst, das Antriebssystem (16;40) zum diskontinuierlichen Beschleunigen des Förderers (12;12A) während des oder jedes Taktperioden-Bewegungsteils (126) vorgesehen ist und das diskontinuierliche Beschleunigen des Förderers (12;12A) von einer Beschleunigungskurve darstellbar ist, die generell momentane Beschleunigungsänderungen mit einem finiten Wert enthält.
  2. Vorrichtung nach Anspruch 1, ferner mit:
    einem weiteren Taktförderer (14;14A) zum lösbaren Angreifen an mindestens einem weiteren der Behälter (C);
    wobei das Antriebssystem (16;40) betriebsmäßig mit dem weiteren Förderer (14;14A) verbunden und zum Zeitsteuern der Bewegung des weiteren Förderers (14;14A) gemäß dem vorbestimmten Bewegungsprofil vorgesehen ist, das Antriebssystem (16;40) auch zum diskontinuierlichen Beschleunigen des weiteren Förderers (14;14A) während des oder jedes Taktperioden-Bewegungsteils (126) vorgesehen ist und auch die diskontinuierliche Beschleunigung des weiteren Förderers (14;14A) von einer Beschleunigungskurve darstellbar ist, die generell momentane Beschleunigungsänderungen mit einem finiten Wert enthält.
  3. Vorrichtung nach Anspruch 1 oder 2, bei der der Bewegungsteil (126) jeder Taktperiode (124) ein parabolisches Bewegungsprofil enthält.
  4. Vorrichtung nach Anspruch 3, bei der der Bewegungsteil (126) jeder Taktperiode (124) ein generell trapezförmiges Geschwindigkeitsprofil enthält.
  5. Vorrichtung nach Anspruch 1 oder 2, bei der der Bewegungsteil jeder Taktperiode ein polynomisches Bewegungsprofil enthält.
  6. Vorrichtung nach einem der vorhergehenden Ansprüche, bei der das Antriebssystem (40) einen Konstantgeschwindigkeits-Antriebsmotor aufweist, der betriebsmäßig mit einem Nocken (48') mit einer Nockenprofilcharakteristik verbunden ist, die bewirkt, dass sich der (die) Förderer (12A,14A) gemäß dem vorbestimmten Bewegungsprofil intermittierend vorwärtsbewegen.
  7. Vorrichtung nach einem der Ansprüche 1 bis 5, bei der das Antriebssystem (16) einen Servomotor (18;42), der betriebsmäßig mit dem (den) Förderer(n) (12,14;12A,14A) verbunden ist, und eine elektrische Steuerung (18';40') aufweist, die mit dem Servomotor (18;42) verbunden und derart programmiert ist, dass sie dem Servomotor (18;42) befiehlt, den (die) Förderer (12,14;12A,14A) gemäß dem vorbestimmten Bewegungsprofil zu bewegen.
  8. Vorrichtung nach Anspruch 2 oder einem der Ansprüche 3 bis 5 mit Rückbezug auf Anspruch 2, zum asynchronen Antreiben der beiden Taktförderer (12,14;12A,14A), wobei das Antriebssystem (16;40) eine Betätigungsquelle (18;42), die betriebsmäßig mit zwei an jeweiligen Welleneinrichtungen (84,86) zum asynchronen Antreiben der jeweiligen Förderer (12,14;12A,14A) angebrachten Getriebeeinrichtungen (80,82) verbunden ist, und eine Einweg-Kupplungseinrichtung (38;54) aufweist, die betriebsmäßig mit jeder Getriebeeinrichtung (80,82) verbunden ist, wobei die Vorrichtung ferner eine Steuereinrichtung (18';40';48') aufweist, die zum Steuern der Beschleunigung und Verlangsamung jedes Förderers (12,14;12A,14A) aus und in Richtung der jeweilige Verweilposition betriebsmäßig mit der Betätigungsquelle (18;42) verbunden ist.
  9. Vorrichtung nach Anspruch 8, bei der die Betätigungsquelle (18;42) die ersten und zweiten Getriebeeinrichtungen (80,82) mittels Zahneinrichtungen (20;48) antreibt, die mit jeweiligen ausgewählten Zahnrädern (22, 23;26,28;50,52;55,64) der ersten und zweiten Getriebeeinrichtungen (80,82) kämmen.
  10. Vorrichtung nach Anspruch 9, bei der die beiden Getriebeeinrichtungen (80,82) jeweils Paare (88) miteinander kämmender Zahnräder (26,30, 28,32) aufweisen, die an jeweiligen Wellen (24,34,25,35) der jeweiligen Welleneinrichtungen (84,86) angebracht sind, welche die jeweiligen Förderer (12,14) antreiben, wobei die jeweiligen Zahnräder (26,28) der jeweiligen Paare miteinander kämmender Zahnräder (26,30,28,32) an den Wellen (24,25) der ausgewählten Zahnräder (22,23) angebracht sind.
  11. Vorrichtung nach Anspruch 9, bei der die ausgewählten Zahnräder (26, 28) mit jeweiligen zweiten Zahnrädern (30,32) der Getriebeeinrichtung (80,82) kämmen, wobei das ausgewählte Zahnrad (26,28) und das zweite Zahnrad (30,32) jeder Getriebeeinrichtung (80,82) an jeweiligen Wellen (24,34,25,35) der Welleneinrichtungen (84,86) angebracht sind, welche jeden Förderer (12,14) antreiben, und die Einweg-Kupplungseinrichtung (38) Einweg-Kupplungen (38) aufweist, die jeweils betriebsmäßig mit den ausgewählten Zahnrädern (26,28) und den zweiten Zahnrädern (30,32) verbunden sind.
  12. Vorrichtung nach Anspruch 9, bei der die beiden Getriebeeinrichtungen (80,82) jeweils Paare (88) miteinander kämmender Zahnräder (55,56, 66,68) aufweisen, die an jeweiligen Wellen (58,60,67,69) der jeweiligen Welleneinrichtungen (84,86) angebracht sind, welche die jeweiligen Förderer (12A,14A) antreiben, wobei bei einer (80) der Getriebeeinrichtungen (80,82) ein Zahnrad (55) ihres Paars (88) an einer Welle (58) ihres ausgewählten Zahnrads (50) angebracht ist und bei der anderen (82) der Getriebeeinrichtungen (80,82) ihr ausgewähltes Zahnrad (52) und ein weiteres Zahnrad (64) an einer separaten Welle (62) ihrer Welleneinrichtung (86) angebracht ist, und das weitere Zahnrad (64) mit einem (66) des Paars (88) miteinander kämmender Zahnräder (66,68) der anderen Getriebeeinrichtung (82) kämmt.
  13. Vorrichtung nach Anspruch 9, bei der das ausgewählte Zahnrad (55) einer (80) der Getriebeeinrichtungen (80,82) mit einem zweiten Zahnrad (56) der einen Getriebeeinrichtung (80) kämmt, das ausgewählte Zahnrad (55) und das zweite Zahnrad (56) an jeweiligen Wellen (58,60) einer (84) der Welleneinrichtungen (84,86) angebracht sind, welche einen (12A) der beiden Förderer (12A,14A) antreiben, und das ausgewählte Zahnrad (64) der anderen Getriebeeinrichtungen (82) mit einem (66) eines Paars (88) miteinander kämmender Zahnräder (66,68) kämmt, welche an jeweiligen Wellen (67,69) der anderen Welleneinrichtung (86) zum Antreiben des anderen (14A) der beiden Förderer (12A,14A) angebracht sind, und die Einweg-Kupplungseinrichtung (54) jeweilige Einweg-Kupplungen (54) aufweist, die betriebsmäßig mit dem ausgewählten Zahnrad (55) der einen Getriebeeinrichtung (80), dem zweiten Zahnrad (56) und den Zahnrädern (66,68) des Paars (88) verbunden ist.
  14. Vorrichtung nach Anspruch 9, 10 oder 12, bei der die Einweg-Kupplungseinrichtung (38;54) jeweilige Kupplungen (38;54) aufweist, die betriebsmäßig mit den jeweiligen ausgewählten Zahnrädern (22,23;26;28; 50,52) verbunden sind.
  15. Vorrichtung nach einem der Ansprüche 8 bis 14 mit Rückbezug auf Anspruch 3, bei der die Steuereinrichtung (18';40') ein Servo-Kontroller (18';40') ist, der auf die Verwendung einer parabolische Kurve oder einer Nocken-Emulation programmiert ist, um ein Weiterleiten von aus den Behältern (C) geschwapptem flüssigen Produkt durch die Förderer (12, 14;12A,14A) zu minimieren.
  16. Vorrichtung nach einem der Ansprüche 8 bis 15, bei der die Betätigungsquelle (18) eine intermittierend arbeitende einzelne reversible Energiequelle (18) ist.
  17. Vorrichtung nach Anspruch 16, bei der die Energiequelle (18) ein Reversier-Servomotor (18) und die Steuereinrichtung (18') ein Servo-Kontroller (18') ist, der zum Erzeugen einer gesteuerten Bewegung der Förderer (12,14) vorgesehen ist.
  18. Vorrichtung nach einem der Ansprüche 9 bis 14 oder Anspruch 15 mit Rückbezug auf Anspruch 9, bei der die Betätigungsquelle (40) einen unidirektionalen Drehtreiber (42) und eine Kopplungseinrichtung (44,46) aufweist, wobei die Quelle (40) die Zahneinrichtung (48) betätigt, welche die Form einer Zahnstange (48) hat.
  19. Vorrichtung nach Anspruch 18, bei der die Zahnstange (48) auf ihren gegenüberliegenden Seiten Zähne zum Kämmen mit den jeweiligen ausgewählten Zahnrädern (50,52;55,64) aufweist .
  20. Vorrichtung nach einem der vorhergehenden Ansprüche, bei der der oder jeder Förderer (12,12A;14,14A) zwei Seiten zum Transportieren der Behälter (C) zwischen diesen Seiten aufweist.
  21. Verfahren zum Bewegen flüssigkeitsgefüllter oben offener Behälter (C), mit dem Schritt des Förderns der Behälter (C) gemäß einem vorbestimmten Bewegungsprofil, das mindestens eine Taktperiode (124) aufweist, wobei die oder jede Taktperiode (124) einen Bewegungsteil (126) und einen Verweilteil (128) umfasst, das Fördern diskontinuierliches Beschleunigen der Behälter (C) während des oder jedes Taktperioden-Bewegungsteils (126) umfasst und das diskontinuierliche Beschleunigen von einer Beschleunigungskurve darstellbar ist, die generell momentane Beschleunigungsänderungen mit einem finiten Wert enthält, wobei ein Überschwappen minimiert wird und ein größerer Durchsatz erreichbar ist.
  22. Verfahren nach Anspruch 21, bei dem der Bewegungsteil (126) jeder Taktperiode (124) ein parabolisches Bewegungsprofil enthält.
  23. Verfahren nach Anspruch 22, bei dem der Bewegungsteil (126) jeder Taktperiode (124) ein generell trapezförmiges Geschwindigkeitsprofil enthält.
  24. Verfahren nach Anspruch 21, bei dem der Bewegungsteil jeder Taktperiode ein polynomisches Bewegungsprofil enthält.
  25. Verfahren nach einem der Ansprüche 21 bis 24, ferner mit den Schritten des Bereitstellens erster und zweiter Taktförderer (12,14;12A,14A); eines Antriebselements (20;48) und erster und zweiter Verbindungseinrichtungen (80,82,38;80,82,54), die das Antriebselement (20;48) mit den jeweiligen Förderern (12,14;12A,14A) verbinden, des kontinuierlichen Reversierens des Antriebselements (20;48), um die Förderer (12, 14;12A,14A) alternierend durch die ersten und zweiten Verbindungseinrichtungen (80,82,38;80,82,54) derart anzutreiben, dass die Förderer (12,14;12A,14A) nicht in Rückwärtsrichtung angetrieben werden, wobei das vorbestimmte Bewegungsprofil durch Steuern der Drehzahl des Antriebselements (20;48) in einer Richtung und einer entgegengesetzten Richtung während im wesentlichen jeder gesamten Verlangsamungsbewegung und jeder gesamten Beschleunigungsbewegung des Antriebselements (20;48) in jede und aus jeder Verweilposition des Antriebselements (20;48) erhalten wird.
  26. Verfahren nach Anspruch 25, bei dem das vorbestimmte Bewegungsprofil durch Steuern der Drehzahl des Antriebselements (20;48) während im wesentlichen jedes gesamten Bewegungszyklus des Antriebselements (20;48) erhalten wird.
  27. Verfahren nach einem der Ansprüche 21 bis 26, bei dem die Behälter Kartons (C) sind, die im oberen Teil versiegelt werden sollen.
EP19990304923 1998-06-23 1999-06-23 Verfahren und Vorrichtung zum Fördern Expired - Lifetime EP0967150B1 (de)

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US09/102,782 US6129204A (en) 1998-06-23 1998-06-23 Machine for asynchronously operating dual indexing conveyors
US102782 1998-06-23
US19963098A 1998-11-25 1998-11-25
US199630 1998-11-25

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DE10356073B4 (de) * 2003-12-01 2007-02-15 Sig Technology Ltd. Verfahren und Vorrichtung zum Befüllen von oben offenen Getränkebehältern
DE102014214696A1 (de) 2014-07-25 2016-01-28 Robert Bosch Gmbh Vorrichtung zum Transport eines Behältnisses relativ zu einer Füllstation
CN116788870B (zh) * 2023-08-16 2023-11-07 常州峰和智能环保装备有限公司 用于脱硝加工的输送装置

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US2628010A (en) 1948-01-02 1953-02-10 Ray Carlo Apparatus for automatically continuously and alternately supplying a flowable commodity to alternately movable cartons carried in parallel lines
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EP1378452A1 (de) 2004-01-07
JP2000025925A (ja) 2000-01-25

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