US3560819A - Machine for filling and closing of collapsible tubes, ampoules and similar containers - Google Patents

Machine for filling and closing of collapsible tubes, ampoules and similar containers Download PDF

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Publication number
US3560819A
US3560819A US786707A US3560819DA US3560819A US 3560819 A US3560819 A US 3560819A US 786707 A US786707 A US 786707A US 3560819D A US3560819D A US 3560819DA US 3560819 A US3560819 A US 3560819A
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United States
Prior art keywords
time interval
spindle
motor
during
oscillator
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Expired - Lifetime
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US786707A
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English (en)
Inventor
Rudolf Overa
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Arenco AB
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Arenco AB
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Publication date
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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
    • B65B7/00—Closing containers or receptacles after filling
    • B65B7/14—Closing collapsible or resilient tubes, e.g. for tooth paste, for lighter fuel

Definitions

  • the invention relates to a device for rotating collapsible tubes or similar containers into a predetermined [54] AR position for closing the open end of each tube.
  • the device CONTAINERS comprises a spindle driven by an electric multipolar electric 5 Claims, 3 Drawing g step motor having a number of poles corresponding to the desired angular movement of each step. The motor is driven [52] [1.8. CI one tep for each pulse in a pulse train from an oscillator l 318/415 variable pulse frequency, said pulse train during a first time in- [51] Int.
  • AMPOULES AND SIMILAR CONTAINERS being brought to rotational movement by means of a rotatable lo spindle driven by an electric motor and displaceable to frictional engagement with the bottom of the container or a retainer for said container, and rotated by said spindle into the predetermined position which is indicated by a photoelectric scanner when reading said marking.
  • One main object of the invention is to provide a device in which these drawbacks are eliminated at least to a substantial extend and which thus is capable of accelerating the tube or container from a condition of rest to full turning speed which turning speed exceeds speeds obtained earlier and which in addition is capable of causing the tube to take position of standstill with great exactness.
  • the spindle of the device is coupled to a multipolar electric step motor having a number of poles corresponding to the desired angular turn per step and devised to be driven one step for each pulse in a pulse train from an oscillator having a varying pulse frequency, said pulse train during a first time interval having relatively low pulse frequency which during a second time interval is increased to a maximum value, said first time interval corresponding to the time consumed by the spindle to cause it without any substantial slip relative the container to accelerate the same from zero to the predetermined rotational speed which is determined by the frequency of the pulses emitted from the oscillator during said second time interval.
  • the oscillator is devised during a third predetermined time interval to generate pulses having low frequency in comparison to the maximum frequency in order thereby to cause such retardation of the container that the danger of slip or sliding relative to the driving spindle is eliminated when the motor is being braked.
  • FIG. I shows the more important parts necessary for the understanding of the invention of a machine for rotation of collapsible tubes, the electric equipment being shown in block form,
  • FIG. 2 shows the oscillator and the circuits cooperating therewith
  • FIG. 3 shows diagrammatically some steps of operation during rotation of a tube.
  • reference numeral I denotes a tube retainer rotatably arranged in, for example, a feed chain or a turntable assembly 2 forming part of a tube filling and locking machine.
  • the tube 3 is provided with a mark 4 which when the tube is being locked must have taken some predetermined position in relation to locking members not shown.
  • the mark 4 is read in conventional manner by means of an electric photocell equipment 5 which controls a driving motor 6 which in a manner not shown here is coupled with a driving spindle 7 which spindle in the turning cycle is displaced to frictional engagement with the bottom of the tube retainer 1 shown or the hat or the bottom of the container proper to be turned to correct position for the closing operation.
  • a conical mandrel 8 is suitably kept pressed down against the upper open end of the tube.
  • the novel feature consists in the device to control the motor 6 and the driving spindle 7 so as to eliminate all slip or slide between the spindle 7 and the retainer 1 whereby the position of the mark upon being scanned becomes exactly determined or does not vary but within well tolerable limits.
  • the motor 6 is constituted by a multipolar synchron motor or step motor having 200 poles, for example, which is controlled by means of a pulse train from an oscillator 9.
  • the number of poles is chosen in dependency of the exactitude with which a tube is to be rotated into the predetermined position. With 200 poles one obtains an angular turn for each pulse corresponding to l.8.
  • the number of poles of the motor is preferably kept between and 360 poles.
  • the pulse frequency of the oscillator is here of such magnitude that it during the first time interval accelerates the tube retainer 1 from the number of revolutions zero to a maximum value.
  • the pulse train from the oscillator 9 is then interrupted or the pulse train frequency is lowered continuously to a desired value prior to interruption of the pulse train in order to eliminate the risk that the tube 3 is rotated by its inherent force within the retainer 1 after that the motor has been stopped. This risk is, however, serious only if the pressure mandrel 8 is lacking and it is further reduced by increasing the load on the mandrel 8.
  • the oscillator shown in FIG. 2 includes a delay circuit. When the machine is operative, relay II is energized and contact I2 is closed.
  • the components of the oscillator 9 are in the embodiment shown dimensioned so that a pulse train with low frequency is generated from output 29 of the oscillator to the motor 6 which thus rotates with low rotational speed as is indicated in the speed diagram A the motor, FIG. 3 (time t to I At the moment t the spindle 7 begins to be lifted towards the bottom of the tube retainer and at the moment t the spindle 7 has been lifted to bear against the tube retainer 1.
  • the surface of spindle facing the retainer 1 is covered with rubber or some other friction generating material or, if desired, devised to establish direct engagement with the retainer in which latter case no sliding or slipping whatever can occur but between the tube and the retainer.
  • the relay 15 closes its contact I 7 and thereby a circuit is closed over resistors I 8 and I9 and condenser 20 which begins to be charged.
  • Transistor 21 which had been in nonconductive condition begins to conduct current and when full current passes through the transistor 21 a signal is sent through diode 22 to the photocell equipment 5 which together with the earlier signal from the conductor 23 renders the photocell equipment 5 ready for scanning.
  • the scanning is initiated at the moment t
  • resistor 24 will be bypassed and the impedance in the RC circuit for oscillator circuit25 has been varied continuously from the moment I, to the moment 1. in such a manner that the pulse frequency of the oscillator has been changed from 300 to 1.000 pulses per second, for example.
  • the tube is rotated until the light ray has hit the mark 4 whereby at the moment i. a signal is emitted to relay 26 through conductor 27.
  • This signal actuates the relay 26 and contact 28 is closed.
  • positive potential is imposed on the continuously closed contact 14 over the contact 28 to the delay circuit and the oscillator which delays the signal during a time interval t, to t
  • the relay 11 is deenergized at the moment 2 and the contact 12 is opened.
  • an apparatus comprising: a rotatable support for holding the container in a vertical position, a rotatable spindle driven by an electric motor, mcansfor engaging the spindle with the rotatable support thereby rotatingthe container, a photoelectric scanner means for scanning said eontainer and for generating a signal when the marking is sensed, and means responsive to the signal for stopping the motor when the marking occupies a predetermined position, the motor being a multipolar electric step motor having a number of poles corresponding to a predetermined angular rotation of said spindle for each step of said motor, and a power source comprising an oscillator means for generating a varying pulse frequency pulse train to the motor and driving the motor through one step for each pulse of the pulse train, the pulse frequency of the pulse train during a first time interval having a relatively low pulse frequency and during a succeeding second time interval having a relatively high
  • the device of claim -1 further comprising means responsive to the contact of the spindle and the rotatable support, the means causing the pulse frequency of the oscillator to begin to vary upon the contact of the spindle and the rotatable support.
  • the .device of claim 2 further comprising a delay circuit means responsive to the output of the photoelectric scanner means the delay circuit means preventing operation of the oscillator and thereby stopping the rotation of the spindle a predetermined time after the generation of a signal by the photoelectric scanner means.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Basic Packing Technique (AREA)
  • Filling Of Jars Or Cans And Processes For Cleaning And Sealing Jars (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Tubes (AREA)
US786707A 1968-01-12 1968-12-24 Machine for filling and closing of collapsible tubes, ampoules and similar containers Expired - Lifetime US3560819A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE445/68A SE323619B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1968-01-12 1968-01-12

Publications (1)

Publication Number Publication Date
US3560819A true US3560819A (en) 1971-02-02

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Family Applications (1)

Application Number Title Priority Date Filing Date
US786707A Expired - Lifetime US3560819A (en) 1968-01-12 1968-12-24 Machine for filling and closing of collapsible tubes, ampoules and similar containers

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US (1) US3560819A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE6813018U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR1603946A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB1207038A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
SE (1) SE323619B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5563486A (en) * 1993-12-24 1996-10-08 Nippondenso Co., Ltd. Pulse motor driver

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2833941A (en) * 1955-11-02 1958-05-06 Gen Dynamics Corp Automation system
US3109974A (en) * 1961-06-19 1963-11-05 Thompson Ramo Wooldridge Inc Machine tool control system having feedrate control
US3110865A (en) * 1960-04-18 1963-11-12 Gen Electric Feed rate control system
US3374410A (en) * 1965-01-06 1968-03-19 Ibm Stepping motor positioning system including acceleration and deceleration control
US3418547A (en) * 1965-03-22 1968-12-24 Gen Signal Corp Step-servocontroller
US3435314A (en) * 1966-12-22 1969-03-25 Ibm Electronic high speed device incrementing control circuitry
US3443181A (en) * 1966-03-28 1969-05-06 Ibm Drive circuit for carriage stepping motor

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2833941A (en) * 1955-11-02 1958-05-06 Gen Dynamics Corp Automation system
US3110865A (en) * 1960-04-18 1963-11-12 Gen Electric Feed rate control system
US3109974A (en) * 1961-06-19 1963-11-05 Thompson Ramo Wooldridge Inc Machine tool control system having feedrate control
US3374410A (en) * 1965-01-06 1968-03-19 Ibm Stepping motor positioning system including acceleration and deceleration control
US3418547A (en) * 1965-03-22 1968-12-24 Gen Signal Corp Step-servocontroller
US3443181A (en) * 1966-03-28 1969-05-06 Ibm Drive circuit for carriage stepping motor
US3435314A (en) * 1966-12-22 1969-03-25 Ibm Electronic high speed device incrementing control circuitry

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5563486A (en) * 1993-12-24 1996-10-08 Nippondenso Co., Ltd. Pulse motor driver

Also Published As

Publication number Publication date
DE1816773B2 (de) 1977-03-03
GB1207038A (en) 1970-09-30
SE323619B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1970-05-04
DE6813018U (de) 1969-12-04
FR1603946A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1971-06-14
DE1816773A1 (de) 1969-07-31

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