US3583603A - A dosing device with a rotating piston cylinder - Google Patents

A dosing device with a rotating piston cylinder Download PDF

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Publication number
US3583603A
US3583603A US851338A US3583603DA US3583603A US 3583603 A US3583603 A US 3583603A US 851338 A US851338 A US 851338A US 3583603D A US3583603D A US 3583603DA US 3583603 A US3583603 A US 3583603A
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Prior art keywords
cylinder
filling
piston
housing
stepped
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Expired - Lifetime
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US851338A
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Heinz Freckmann
Karlheinz Mayer
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Benz and Hilgers GmbH
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Benz and Hilgers GmbH
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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
    • B65B3/00—Packaging plastic material, semiliquids, liquids or mixed solids and liquids, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
    • B65B3/26—Methods or devices for controlling the quantity of the material fed or filled
    • B65B3/30—Methods or devices for controlling the quantity of the material fed or filled by volumetric measurement
    • B65B3/32—Methods or devices for controlling the quantity of the material fed or filled by volumetric measurement by pistons co-operating with measuring chambers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B5/00—Machines or pumps with differential-surface pistons
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B7/00—Piston machines or pumps characterised by having positively-driven valving
    • F04B7/04—Piston machines or pumps characterised by having positively-driven valving in which the valving is performed by pistons and cylinders coacting to open and close intake or outlet ports
    • F04B7/06—Piston machines or pumps characterised by having positively-driven valving in which the valving is performed by pistons and cylinders coacting to open and close intake or outlet ports the pistons and cylinders being relatively reciprocated and rotated

Definitions

  • a filling device for filling in doses of soft-plastic material with a piston which comprises a filling housing and a dosaging cylinder rotatably mounted in the housing and altemately into a filling position and an emptying position.
  • a piston reciprocates in the cylinder and is divided by at least one portion of larger diameter and a portion of smaller diameter into a stepped-up piston.
  • the inner surface of the cylinder is stepped down complementary to the stepped-up piston.
  • the stepped-up piston defines in the cylinder an annular chamber at the end face of the portion of the piston having a larger diameter and a cylindrical chamber at the end of the portion of the cylinder having smaller diameter.
  • the filling housing has a filling opening within the range of the chambers, and the cylinder has a lateral opening within the range of the annular chamber and the cylindrical chamber, respectively, thereby providing alternately communication with the housing for filling the chambers and with the opening in the housing, respectively, for emptying the cylinder, depending upon the position of the cylinder.
  • the present invention relates to a dosing device, in general, and to filling devices for dosed filling of soft plastic material with a piston, which is mounted axially displaceable in a rotary cylinder equipped with an opening and switchable alternately for filling and emptying.
  • volume dosing of this type has been known for some time.
  • Such devices comprise substantially a filling housing fed from the outside with the material, in which filling housing is rotatably mounted a dosing cylinder, which is equipped with a jacket opening.
  • a dosing cylinder In this dosing cylinder is axially displaceably provided a dosing piston for suction and pressing out.
  • a volume filling exactly to its weight is obtained, on the one hand, by suction and, on the other hand, by pressing out of the material.
  • FIG. 1 is a vertical section of the closing cylinder mounted in the filling housing and the stepped-up piston arranged in the dosing cylinder in the position prior to the suction operation;
  • FIG. 2 is a vertical section, similar to that shown in FIG. I, however, the piston and cylinder position, respectively, being shown at the start of the pressing out of the material.
  • the filling device comprises a filling housing I and a rotary cylinder 2 rotatably mounted in the filling housing 1.
  • a stepped-up piston 3, reciprocated by a piston rod 4, is arranged axially displaceable in the rotary cylinder 2.
  • a storage container 7 receiving the material to be dosed is provided on the filling housing 1.
  • a conventional shifting drive 10 is provided for rotation of the cylinder 2.
  • the filling device applies two mouth pieces 11 and 12, extending from the filling housing 1 in communication with openings in the latter, and the containers l3 and 14 are disposed adjacent the mouth pieces 11 and 12, respectively,
  • the working cycle of the filling device can be divided into a suction phase and a press-out phase.
  • the suction phase starts with a return stroke of the stepped-up piston 3 from the position disclosed in FIG. 1 and terminates with the rearmost position of the piston 2, as shown in FIG. 2.
  • the chambers 5 and 5a are connected by means of the openings 6 and 6a of the rotary cylinder 2, in case of a corresponding position of the rotary cylinder 2 with the dosing housing I and the storage container 7, respectively.
  • the material present in the storage container 7 will be sucked out from the latter corresponding to the volume of the piston stroke simultaneously in both chambers 5 and 5a.
  • the amount of the sucked-up volume in both chambers 5 and 5a can be equal or different in accordance with the ratio of the circular ring face 8 to the circular face 9 of the step-up piston 3.
  • the press-out phase is started, which terminates with the position of the step-up piston 3, as shown in FIG. 1.
  • the material present in the chambers 5 and 5a is pressed out simultaneously into the containers l3 and 14 to be filled, by means of the connection of the rotary cylinder 2 with the mouth pieces 11 and 12 through the openings 6 and 6a of the filling housing 1.
  • a new operation cycle starts with suction phase and a press-out phase.
  • a filling device for filling in doses of soft-plastic material with a piston comprising a filling housing,
  • a dosaging cylinder rotatably mounted in said housing and alternately movable into a filling position and an emptying position, respectively a piston reciprocating in said cylinder
  • said piston being divided by at least one portion of larger diameter and a portion of smaller diameter into a stepped-up piston
  • said stepped-up piston defining in said cylinder an annular chamber at the end face of the portion of said piston having a larger diameter and a cylindrical chamber at the end of the portion of said cylinder having a smaller diameter
  • said filling housing having a filling opening within the range of said chambers
  • said cylinder having a lateral opening within the range of said annular chamber and said cylindrical chamber, respectively, thereby providing alternately communication with said housing for filling said chambers and with said opening in said housing, respectively, for emptying said cylinder, depending upon the position of said cylinder.

Abstract

A filling device for filling in doses of soft-plastic material with a piston, which comprises a filling housing and a dosaging cylinder rotatably mounted in the housing and alternately into a filling position and an emptying position. A piston reciprocates in the cylinder and is divided by at least one portion of larger diameter and a portion of smaller diameter into a stepped-up piston. The inner surface of the cylinder is stepped down complementary to the stepped-up piston. The stepped-up piston defines in the cylinder an annular chamber at the end face of the portion of the piston having a larger diameter and a cylindrical chamber at the end of the portion of the cylinder having smaller diameter. The filling housing has a filling opening within the range of the chambers, and the cylinder has a lateral opening within the range of the annular chamber and the cylindrical chamber, respectively, thereby providing alternately communication with the housing for filling the chambers and with the opening in the housing, respectively, for emptying the cylinder, depending upon the position of the cylinder.

Description

United States Patent Inventors Heinz Freckmann Dusseldorf; Karlheinz Mayer, Wangen, both of, Germany Appl. No. 851,338
Filed Aug. 19, 1969 Patented June 8, I971 Assignee Benz 8: IIilgers G.m.b.II.
Dusseldorf, Germany Priority Aug. 21, 1968 Germany P 17 86 127.7
A DOSING DEVICE WITH A ROTATING PISTON CYLINDER 2,972,435 2/1961 McCarty 3,136,268 6/1964 Gageant ABSTRACT: A filling device for filling in doses of soft-plastic material with a piston, which comprises a filling housing and a dosaging cylinder rotatably mounted in the housing and altemately into a filling position and an emptying position. A piston reciprocates in the cylinder and is divided by at least one portion of larger diameter and a portion of smaller diameter into a stepped-up piston. The inner surface of the cylinder is stepped down complementary to the stepped-up piston. The stepped-up piston defines in the cylinder an annular chamber at the end face of the portion of the piston having a larger diameter and a cylindrical chamber at the end of the portion of the cylinder having smaller diameter. The filling housing has a filling opening within the range of the chambers, and the cylinder has a lateral opening within the range of the annular chamber and the cylindrical chamber, respectively, thereby providing alternately communication with the housing for filling the chambers and with the opening in the housing, respectively, for emptying the cylinder, depending upon the position of the cylinder.
PATENTEDJUN 81971 35 503 w I 72 FIG 2 .JNVEN TOR 369% Ma; 911K44 K A DOSING DEVICE WITH A ROTATING PISTON CYLINDER The present invention relates to a dosing device, in general, and to filling devices for dosed filling of soft plastic material with a piston, which is mounted axially displaceable in a rotary cylinder equipped with an opening and switchable alternately for filling and emptying.
Volume dosing of this type has been known for some time. Such devices comprise substantially a filling housing fed from the outside with the material, in which filling housing is rotatably mounted a dosing cylinder, which is equipped with a jacket opening. In this dosing cylinder is axially displaceably provided a dosing piston for suction and pressing out. By a coordinated rotary and transverse movement, respectively, of the cylinder and of the piston, a volume filling exactly to its weight is obtained, on the one hand, by suction and, on the other hand, by pressing out of the material. In order to bring about an increase of the filling output, it is known, among other means, to arrange two such cylinder piston systems parallel relative to each other, the pistons of which are displaced jointly and simultaneously by means of a double lever.
It is one object of the present invention to provide a dosing device, to create a simpler and more economical dosing device, for the purpose of an output increase.
It is another object of the present invention to provide a dosing device, wherein the piston is divided by a diameter change into a stepped-up piston, which is arranged in the similarly stepped-down rotary cylinder such, that at least a circular ring space and at the end of the piston a cylinder chamber is created, within the range of which ajacket opening is provided which serves as inlet opening and outlet opening, respectively. By selection of the ratio of the free piston end faces relative to each other the possibility results, to fill equal or nonequal volumina simultaneously.
With these and other objects in view which will become apparent in the following detailed description, the present inven tion will be clearly understood in connection with the accompanying drawings, in which:
FIG. 1 is a vertical section of the closing cylinder mounted in the filling housing and the stepped-up piston arranged in the dosing cylinder in the position prior to the suction operation; and
FIG. 2 is a vertical section, similar to that shown in FIG. I, however, the piston and cylinder position, respectively, being shown at the start of the pressing out of the material.
Referring now to the drawing, the filling device comprises a filling housing I and a rotary cylinder 2 rotatably mounted in the filling housing 1. A stepped-up piston 3, reciprocated by a piston rod 4, is arranged axially displaceable in the rotary cylinder 2. A storage container 7 receiving the material to be dosed is provided on the filling housing 1. A conventional shifting drive 10 is provided for rotation of the cylinder 2. For filling the material into containers l3 and 14, the filling device applies two mouth pieces 11 and 12, extending from the filling housing 1 in communication with openings in the latter, and the containers l3 and 14 are disposed adjacent the mouth pieces 11 and 12, respectively,
The working cycle of the filling device can be divided into a suction phase and a press-out phase. The suction phase starts with a return stroke of the stepped-up piston 3 from the position disclosed in FIG. 1 and terminates with the rearmost position of the piston 2, as shown in FIG. 2. At the start of the suction phase, the chambers 5 and 5a are connected by means of the openings 6 and 6a of the rotary cylinder 2, in case ofa corresponding position of the rotary cylinder 2 with the dosing housing I and the storage container 7, respectively. During the return stroke of the step-up piston 3, the latter being drawn by the piston rod 4, the material present in the storage container 7 will be sucked out from the latter corresponding to the volume of the piston stroke simultaneously in both chambers 5 and 5a. The amount of the sucked-up volume in both chambers 5 and 5a can be equal or different in accordance with the ratio of the circular ring face 8 to the circular face 9 of the step-up piston 3.
By rotation of the rotary cylinder 2 by means of the drive I0 into the position shown in FIG. 2, the press-out phase is started, which terminates with the position of the step-up piston 3, as shown in FIG. 1. During the press-out stroke of the step-up piston 3, the material present in the chambers 5 and 5a is pressed out simultaneously into the containers l3 and 14 to be filled, by means of the connection of the rotary cylinder 2 with the mouth pieces 11 and 12 through the openings 6 and 6a of the filling housing 1. Upon following return rotation of the rotary cylinder 2, a new operation cycle starts with suction phase and a press-out phase.
While we have disclosed one embodiment of the present invention, it is to be understood that this embodiment is give by example only and not in a limiting sense.
We claim:
1. A filling device for filling in doses of soft-plastic material with a piston, comprising a filling housing,
a dosaging cylinder rotatably mounted in said housing and alternately movable into a filling position and an emptying position, respectively a piston reciprocating in said cylinder,
said piston being divided by at least one portion of larger diameter and a portion of smaller diameter into a stepped-up piston,
the inner surface of said cylinder being stepped down complementary to said stepped-up piston,
said stepped-up piston defining in said cylinder an annular chamber at the end face of the portion of said piston having a larger diameter and a cylindrical chamber at the end of the portion of said cylinder having a smaller diameter,
said filling housing having a filling opening within the range of said chambers, and
said cylinder having a lateral opening within the range of said annular chamber and said cylindrical chamber, respectively, thereby providing alternately communication with said housing for filling said chambers and with said opening in said housing, respectively, for emptying said cylinder, depending upon the position of said cylinder.
2. The filling device as set forth in claim 1, wherein said chambers of said cylinder have equal volumes.
3. The filling device, as set forth in claim 1, wherein said chambers of said cylinder are of different volumes.

Claims (3)

1. A filling device for filling in doses of soft-plastic material with a piston, comprising a filling housing, a dosaging cylinder rotatably mounted in said housing and alternately movable into a filling position and an emptying position, respectively a piston reciprocating in said cylinder, said piston being divided by at least one portion of larger diameter and a portion of smaller diameter into a stepped-up piston, the inner surface of said cylinder being stepped down complementary to said stepped-up piston, said stepped-up piston defining in said cylinder an annular chamber at the end face of the portion of said piston having a larger diameter and a cylindrical chamber at the end of the portion of said cylinder having a smaller diameter, said filling housing having a filling opening within the range of said chambers, and said cylinder having a lateral opening within the range of said annular chamber and said cylindrical chamber, respectively, thereby providing alternately communication with said housing for filling said chambers and with said opening in said housing, respectively, for emptying said cylinder, depending upon the position of said cylinder.
2. The filling device as set forth in claim 1, wherein said chambers of said cylinder have equal volumes.
3. The filling device, as set forth in claim 1, wherein said chambers of said cylinder are of different volumes.
US851338A 1968-08-21 1969-08-19 A dosing device with a rotating piston cylinder Expired - Lifetime US3583603A (en)

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DE19681786127 DE1786127A1 (en) 1968-08-21 1968-08-21 Dosing device

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US (1) US3583603A (en)
CH (1) CH492601A (en)
DE (1) DE1786127A1 (en)
DK (1) DK119597B (en)
FR (1) FR2016063A1 (en)
GB (1) GB1269722A (en)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3979021A (en) * 1974-03-29 1976-09-07 Benz & Hilgers Gmbh System for dosing a viscous hardenable mass into a succession of containers
US4063680A (en) * 1976-07-19 1977-12-20 Gerry Leo Betting tray
US4860926A (en) * 1986-10-29 1989-08-29 Benz & Hilgers Bmbh Arrangement for dosingly filling of fluid or pasty material into containers
US5794411A (en) * 1996-07-24 1998-08-18 Research Products Manufacturing, Inc. Single station food product wrapping machine
US6109007A (en) * 1999-03-02 2000-08-29 Tru Pac Inc. Single station food product wrapping apparatus and method for making up a one pound package
AU758441B2 (en) * 1997-03-26 2003-03-20 Innovation Technologies, Inc. Novel wound irrigation device and method
US20100065578A1 (en) * 2008-09-16 2010-03-18 Diperna Paul M Flow regulating stopcocks and related methods
US20100140302A1 (en) * 2007-01-22 2010-06-10 Kmb Produktions Ag Device for metering out a flowable mass
US8758323B2 (en) 2009-07-30 2014-06-24 Tandem Diabetes Care, Inc. Infusion pump system with disposable cartridge having pressure venting and pressure feedback
US8986253B2 (en) 2008-01-25 2015-03-24 Tandem Diabetes Care, Inc. Two chamber pumps and related methods
US9555186B2 (en) 2012-06-05 2017-01-31 Tandem Diabetes Care, Inc. Infusion pump system with disposable cartridge having pressure venting and pressure feedback
US9962486B2 (en) 2013-03-14 2018-05-08 Tandem Diabetes Care, Inc. System and method for detecting occlusions in an infusion pump
US10258736B2 (en) 2012-05-17 2019-04-16 Tandem Diabetes Care, Inc. Systems including vial adapter for fluid transfer

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK147605C (en) * 1978-12-14 1985-04-22 Nestle Sa PUMP FOR MEASURING AND MIXING FLUIDS
DE3443557A1 (en) * 1984-11-29 1986-05-28 Lieder Maschinenbau GmbH & Co KG, 3033 Schwarmstedt METHOD AND DEVICE FOR MEASURING A FLOWABLE PRODUCT
DE19918430C2 (en) * 1999-04-23 2002-07-11 Stefan Maier Device for the metered filling of liquids with high viscosity

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US808020A (en) * 1905-09-21 1905-12-19 Charles Bevarley Davis Automatic liquid-measure.
US2972435A (en) * 1961-02-21 mccarty
US3136268A (en) * 1961-10-30 1964-06-09 Campbell Soup Co Automatic pie machine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2972435A (en) * 1961-02-21 mccarty
US808020A (en) * 1905-09-21 1905-12-19 Charles Bevarley Davis Automatic liquid-measure.
US3136268A (en) * 1961-10-30 1964-06-09 Campbell Soup Co Automatic pie machine

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3979021A (en) * 1974-03-29 1976-09-07 Benz & Hilgers Gmbh System for dosing a viscous hardenable mass into a succession of containers
US4063680A (en) * 1976-07-19 1977-12-20 Gerry Leo Betting tray
US4860926A (en) * 1986-10-29 1989-08-29 Benz & Hilgers Bmbh Arrangement for dosingly filling of fluid or pasty material into containers
US5794411A (en) * 1996-07-24 1998-08-18 Research Products Manufacturing, Inc. Single station food product wrapping machine
AU758441B2 (en) * 1997-03-26 2003-03-20 Innovation Technologies, Inc. Novel wound irrigation device and method
US6109007A (en) * 1999-03-02 2000-08-29 Tru Pac Inc. Single station food product wrapping apparatus and method for making up a one pound package
US8388324B2 (en) * 2007-01-22 2013-03-05 Kmb Produktions Ag Device for metering out a flowable mass using a coaxial rotary piston and plunger
US20100140302A1 (en) * 2007-01-22 2010-06-10 Kmb Produktions Ag Device for metering out a flowable mass
US8986253B2 (en) 2008-01-25 2015-03-24 Tandem Diabetes Care, Inc. Two chamber pumps and related methods
US20100065578A1 (en) * 2008-09-16 2010-03-18 Diperna Paul M Flow regulating stopcocks and related methods
US8408421B2 (en) * 2008-09-16 2013-04-02 Tandem Diabetes Care, Inc. Flow regulating stopcocks and related methods
US8758323B2 (en) 2009-07-30 2014-06-24 Tandem Diabetes Care, Inc. Infusion pump system with disposable cartridge having pressure venting and pressure feedback
US8926561B2 (en) 2009-07-30 2015-01-06 Tandem Diabetes Care, Inc. Infusion pump system with disposable cartridge having pressure venting and pressure feedback
US9211377B2 (en) 2009-07-30 2015-12-15 Tandem Diabetes Care, Inc. Infusion pump system with disposable cartridge having pressure venting and pressure feedback
US11135362B2 (en) 2009-07-30 2021-10-05 Tandem Diabetes Care, Inc. Infusion pump systems and methods
US11285263B2 (en) 2009-07-30 2022-03-29 Tandem Diabetes Care, Inc. Infusion pump systems and methods
US10258736B2 (en) 2012-05-17 2019-04-16 Tandem Diabetes Care, Inc. Systems including vial adapter for fluid transfer
US9555186B2 (en) 2012-06-05 2017-01-31 Tandem Diabetes Care, Inc. Infusion pump system with disposable cartridge having pressure venting and pressure feedback
US9962486B2 (en) 2013-03-14 2018-05-08 Tandem Diabetes Care, Inc. System and method for detecting occlusions in an infusion pump

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Publication number Publication date
CH492601A (en) 1970-06-30
FR2016063A1 (en) 1970-04-30
DK119597B (en) 1971-01-25
DE1786127A1 (en) 1971-11-25
GB1269722A (en) 1972-04-06

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