EP0222695A1 - Dosiervorrichtung - Google Patents

Dosiervorrichtung Download PDF

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Publication number
EP0222695A1
EP0222695A1 EP86810435A EP86810435A EP0222695A1 EP 0222695 A1 EP0222695 A1 EP 0222695A1 EP 86810435 A EP86810435 A EP 86810435A EP 86810435 A EP86810435 A EP 86810435A EP 0222695 A1 EP0222695 A1 EP 0222695A1
Authority
EP
European Patent Office
Prior art keywords
dosing
container
valve
filling
valve head
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.)
Withdrawn
Application number
EP86810435A
Other languages
German (de)
English (en)
French (fr)
Inventor
Hanspeter Grieder
Kurt Meier
Guido Stutz
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.)
Chematec AG
Original Assignee
Chematec AG
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 Chematec AG filed Critical Chematec AG
Publication of EP0222695A1 publication Critical patent/EP0222695A1/de
Withdrawn legal-status Critical Current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
    • B65B1/00—Packaging fluent solid material, e.g. powders, granular or loose fibrous material, loose masses of small articles, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
    • B65B1/30—Devices or methods for controlling or determining the quantity or quality or the material fed or filled
    • B65B1/32—Devices or methods for controlling or determining the quantity or quality or the material fed or filled by weighing
    • 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
    • B65B39/00—Nozzles, funnels or guides for introducing articles or materials into containers or wrappers
    • B65B39/001—Nozzles, funnels or guides for introducing articles or materials into containers or wrappers with flow cut-off means, e.g. valves
    • B65B39/004—Nozzles, funnels or guides for introducing articles or materials into containers or wrappers with flow cut-off means, e.g. valves moving linearly

Definitions

  • the present invention relates to a metering device according to the preamble of claim 1.
  • metering devices such as, for example, horizontal screw metering systems with one or more metering screws with a fixed or variable speed, furthermore vibratory troughs with a variable drive, horizontal stirring systems, etc.
  • a particularly frequently encountered embodiment has a container which tapers conically at least in the lower part and in which the outlet opening can be closed by means of a flap or a slide. Powdery and granular materials tend to form bridges in the lower, tapered part. When such a bridge collapses, the inflow quantity in the filling container is suddenly increased. In addition, the filling material tends to stick to the walls of the vessel, to the slide or to the flap, which likewise causes an irregular inflow.
  • a major problem is that of poorly flowing pasty products, the gravity of which is insufficient to generate sufficient filling pressure.
  • the invention solves the problem of a metering which is also suitable for poorly flowing and pasty products to create a device in which bridging and sticking of the filling material to the container wall or closing device is prevented and thus a uniform outflow of the filling material is achieved so that the desired filling quantity can be achieved with high precision and at a high filling speed.
  • a metering container 1 which tapers conically in its lower part and is provided with an outlet opening 2 at the bottom.
  • the dosing container 1 is provided with an outlet nozzle 9.
  • a circular web 15 is arranged around it, which encloses the opening of a cover for a filling vessel, not shown in the figure.
  • a gap is left between the outlet nozzle 9 and the web 15 so that the relative movement required for weighing between the vessel and the metering container is possible.
  • the exit quantity of the Filled goods are regulated with a valve 3, 4. This is made up of a valve rod 3 and a valve head 4.
  • the valve head 4 is disc-shaped at its lower end and has a diameter in this section which corresponds to the outlet opening 2 of the metering container 1.
  • valve rod 3 is enclosed by a hollow shaft 5, to which at least one wiper 6 is attached.
  • the outlet of the valve rod 3 from the hollow shaft 5 is sealed by a stuffing box 11.
  • the passage of the hollow shaft 5 through the container ceiling 12 is sealed with a stuffing box 11.
  • the hollow shaft 5 is rotatably mounted in a gear, not shown in FIG. 1.
  • the outer edge of the scraper 6 runs along the lower part of the metering container 1. When the hollow shaft 5 rotates, the scraper is guided along the vessel wall. This prevents the filling material from bridging or sticking to the vessel wall.
  • the scraper 6 In its lower part, the scraper 6 has an edge which is dimensioned such that it runs parallel to its disc-shaped, lower end in each position of the valve head 4. This prevents the filling material from sticking to the disk-shaped part of the valve head 4 when the scraper 6 is actuated.
  • the wipers 6 have an angle W1 to the vertical. With this angling of the wipers 6, a pressure component downward and an additional swirl are caused during the rotary movement, which, among other things, prevent the filling material from sticking to the outlet nozzle 2.
  • wing elements 8 are attached to the hollow shaft 5 by means of a holding rod, which form an angle W2 to the horizontal plane.
  • a downward pressure component is also exerted on the filling material and a swirl is generated in order to prevent the filling material from sticking in the upper region of the container wall.
  • Pressure component and swirl which can be achieved both by the wing elements 8 and by an above-described angle of the scraper (s), also make it possible to meter difficult-flowing or pasty products in which the force of gravity alone would not produce enough filling pressure .
  • the filling material passes through the filling opening 13 into the dosing container 1.
  • a level measuring device 10 attached to the container ceiling 12 monitors the amount of filling material available in the dosing container 1. With the aid of the level measuring device 10, the replenishment of the filling material from a main container, not shown in the figure, is controlled. Thanks to the level monitoring, the amount of material contained in the dosing container 1 is only subject to slight fluctuations, so that the static pressure prevailing within the filling material remains practically constant and the filling material exits at a reproducible speed for each degree of opening of the valve 3, 4.
  • a filling container 16 is located on a weighing device 17 which is provided with a holder 18 which presses the intermediate lid 14 against the filling vessel 16.
  • the dosing container 1 rests on a support 19.
  • the filling material is fed via a pipe 24 to a conveyor 23 which contains a cellular wheel sluice or a vibrating trough.
  • the conveyor 23 is connected to the metering container 1 via a pipe 25. As soon as the level of the filling material in the metering container 1 falls below a certain minimum, the conveying device 23 is switched on and the metering container 1 is refilled via the level measuring device (not shown in this figure).
  • a gear 21 is mounted on the metering container ceiling 12, which is driven by a motor 20 and drives the hollow shaft (not visible in this figure) with the wing elements and the scraper.
  • An actuator 22 is attached to the housing of the transmission 21 and operates on a pneumatic, electrical or hydraulic basis with or without mechanical implementation. The actuator 22 moves the metering valve leading through the hollow shaft in the vertical direction and, depending on the stroke, releases a larger or smaller opening at the outlet opening of the metering container 1.
  • the dosing device is operated as follows:
  • An empty filling container 16 for example a container or a barrel, is placed on the weighing platform 17.
  • the intermediate cover 14 is pressed with the clamping device 18 onto the upper edge of the filling vessel 16.
  • the filling vessel 16 is automatically tared, ie the weighing device 17 is automatically set to zero.
  • Filling material is fed to the dosing container 1 via the conveying device 23, 24, 25.
  • the hollow shaft with the wing elements and the wiper rotates. The product begins to be filled when the metering valve is fully open.
  • the metering valve As soon as a certain part of the intended filling weight has been reached, the metering valve is brought into a fine metering position, ie only a small gap remains between the metering valve and the outlet opening of the metering container 1. The scraper circling around the metering valve ensures that this small gap is not blocked by filling material that sticks together. If a predetermined minimum level of the filling goods in the dosing container 1 is undershot during the filling process, the conveyor 23, 24, 25 is actuated until the predetermined upper level is reached again. As soon as the preselected final filling weight is reached, the dosing valve closes and the filling process is finished.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Quality & Reliability (AREA)
  • Basic Packing Technique (AREA)
EP86810435A 1985-10-03 1986-10-02 Dosiervorrichtung Withdrawn EP0222695A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH427085A CH669934A5 (enrdf_load_stackoverflow) 1985-10-03 1985-10-03
CH4270/85 1985-10-03

Publications (1)

Publication Number Publication Date
EP0222695A1 true EP0222695A1 (de) 1987-05-20

Family

ID=4272972

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86810435A Withdrawn EP0222695A1 (de) 1985-10-03 1986-10-02 Dosiervorrichtung

Country Status (2)

Country Link
EP (1) EP0222695A1 (enrdf_load_stackoverflow)
CH (1) CH669934A5 (enrdf_load_stackoverflow)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2240160B (en) * 1990-01-10 1993-12-15 Peter Goodwin A feed valve
US5309961A (en) * 1992-04-27 1994-05-10 Tetra Laval Holdings & Finance S.A. Nozzle for filler pipes in packaging machines
EP0967149A1 (de) * 1998-06-26 1999-12-29 CHRONOS RICHARDSON GmbH Dosiervorrichtung
GB2391861A (en) * 2002-08-16 2004-02-18 Ivan Semenenko A closure device
DE19841478B4 (de) * 1997-09-12 2009-02-19 Rainer Schneckenburger Dosiervorrichtung mit ausziehbarer Dichtung
WO2016059510A1 (en) * 2014-10-15 2016-04-21 I.M.A. Industria Macchine Automatiche S.P.A. Device and method for feeding and dosing filter bags with infusion or extraction products

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB701572A (en) * 1950-02-15 1953-12-30 Arthur Ronald Smith Improvements relating to filling machines
DE2910651A1 (de) * 1979-03-17 1980-09-25 Haagen & Rinau Vorrichtung zum foerdern hochviskoser medien
DE2923672A1 (de) * 1979-06-12 1980-12-18 Metallgesellschaft Ag Dosiervorrichtung
EP0032481A2 (de) * 1980-01-11 1981-07-22 Firma M. Jeger Vorrichtung zum Dosieren strömungsfähiger Medien
CH630018A5 (en) * 1978-05-22 1982-05-28 Gen Packaging Equip Co Process and apparatus for the automatic filling of bags with particulate materials

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB701572A (en) * 1950-02-15 1953-12-30 Arthur Ronald Smith Improvements relating to filling machines
CH630018A5 (en) * 1978-05-22 1982-05-28 Gen Packaging Equip Co Process and apparatus for the automatic filling of bags with particulate materials
DE2910651A1 (de) * 1979-03-17 1980-09-25 Haagen & Rinau Vorrichtung zum foerdern hochviskoser medien
DE2923672A1 (de) * 1979-06-12 1980-12-18 Metallgesellschaft Ag Dosiervorrichtung
EP0032481A2 (de) * 1980-01-11 1981-07-22 Firma M. Jeger Vorrichtung zum Dosieren strömungsfähiger Medien

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
VERPAKKING, Band 27, Nr. 8, April 1975, Seiten 372-382; L.A. VAN DRIEL et al.: "Doseersystemen bij verpakkingsmachines" *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2240160B (en) * 1990-01-10 1993-12-15 Peter Goodwin A feed valve
US5309961A (en) * 1992-04-27 1994-05-10 Tetra Laval Holdings & Finance S.A. Nozzle for filler pipes in packaging machines
DE19841478B4 (de) * 1997-09-12 2009-02-19 Rainer Schneckenburger Dosiervorrichtung mit ausziehbarer Dichtung
EP0967149A1 (de) * 1998-06-26 1999-12-29 CHRONOS RICHARDSON GmbH Dosiervorrichtung
GB2391861A (en) * 2002-08-16 2004-02-18 Ivan Semenenko A closure device
WO2016059510A1 (en) * 2014-10-15 2016-04-21 I.M.A. Industria Macchine Automatiche S.P.A. Device and method for feeding and dosing filter bags with infusion or extraction products
CN107074383A (zh) * 2014-10-15 2017-08-18 I.M.A.工业机械自动化股份公司 用于向滤袋进给和按剂量分配浸泡或萃取产品的设备和方法
US10450097B2 (en) 2014-10-15 2019-10-22 I.M.A. Industria Macchine Automatiche S.P.A. Device and method for feeding and dosing filter bags with infusion or extraction products

Also Published As

Publication number Publication date
CH669934A5 (enrdf_load_stackoverflow) 1989-04-28

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Inventor name: GRIEDER, HANSPETER

Inventor name: MEIER, KURT

Inventor name: STUTZ, GUIDO