EP0336198A2 - Dispositifs de commande de la distribution de quantités dosées de liquides pulvérisés répartis dans un gaz - Google Patents

Dispositifs de commande de la distribution de quantités dosées de liquides pulvérisés répartis dans un gaz Download PDF

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Publication number
EP0336198A2
EP0336198A2 EP89104988A EP89104988A EP0336198A2 EP 0336198 A2 EP0336198 A2 EP 0336198A2 EP 89104988 A EP89104988 A EP 89104988A EP 89104988 A EP89104988 A EP 89104988A EP 0336198 A2 EP0336198 A2 EP 0336198A2
Authority
EP
European Patent Office
Prior art keywords
valve
nozzle
axis
calming
venturi
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Withdrawn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
EP89104988A
Other languages
German (de)
English (en)
Other versions
EP0336198A3 (fr
Inventor
Josef Dipl.-Ing. Boldis
Ekkehard Dipl.-Ing. Flaischlen
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.)
Boehringer Ingelheim Pharma GmbH and Co KG
Original Assignee
Dr Karl Thomae GmbH
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 Dr Karl Thomae GmbH filed Critical Dr Karl Thomae GmbH
Publication of EP0336198A2 publication Critical patent/EP0336198A2/fr
Publication of EP0336198A3 publication Critical patent/EP0336198A3/fr
Withdrawn legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/0005—Details of, or accessories for, presses; Auxiliary measures in connection with pressing for briquetting presses
    • B30B15/0011—Details of, or accessories for, presses; Auxiliary measures in connection with pressing for briquetting presses lubricating means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/02—Arrangements for controlling delivery; Arrangements for controlling the spray area for controlling time, or sequence, of delivery
    • B05B12/06—Arrangements for controlling delivery; Arrangements for controlling the spray area for controlling time, or sequence, of delivery for effecting pulsating flow
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/08—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means
    • B05B12/12—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means responsive to conditions of ambient medium or target, e.g. humidity, temperature position or movement of the target relative to the spray apparatus

Definitions

  • the invention relates to devices for the controlled release of metered amounts of liquids which are finely divided in gases, including emulsions or suspensions, for the purpose of applying these liquids to solid carrier materials which are guided past these devices at defined intervals for the purpose of targeted application or coating will.
  • liquid lubricant or release agent preparations can be applied to the claimed surfaces of pressing tools in tabletting machines, but also active pharmaceutical ingredients on pharmaceutical carriers or dye solutions or sugar preparations on luxury foods, such as chocolates.
  • the devices according to the invention also allow a relatively large-volume application of liquids to moving carrier materials, the metered and targeted release being maintained.
  • the device according to the invention consists of a combination of nozzles, optionally with a calming tube located at the outlet of the nozzles, for generating and specifically guiding a pulsed liquid-gas mixture with a defined outflow rate in synchronism with the number of cycles with which the object to be charged is guided past the outlet opening.
  • the nozzle combination consists of one or more venturi nozzles, the individual venturi nozzle consisting of an air nozzle, a mixing chamber adjoining this and a mixture nozzle connected to it.
  • a valve on the propellant line supplying the Venturi nozzle which valve is actuated mechanically, pneumatically, hydraulically or electrically by a control system; the control system receives its signals from a sensor which responds to the appearance of solid support materials to be acted upon in front of the nozzle openings, e.g. B. by mechanical, optical or electromagnetic triggering; gases such as air, nitrogen and noble gases serve as blowing agents.
  • the control device opens the valve or valves at short notice and in a timely manner, the now flowing means of transport in the venturi nozzle taking a defined amount of the liquid with it by suction, producing a liquid-gas mixture from it and accelerating it, the quantified mixture is brought specifically to the areas to be acted on.
  • An intake duct with a non-return valve that supplies the Venturi nozzle with appropriate liquids takes the liquid from a storage container.
  • the targeted application of the mixture takes place through the synchronization of the pulses and through the geometry of the nozzle openings, which, for. B. can be slit-shaped or oval.
  • a preferred embodiment consists of Venturi nozzles, which are composed of one or more air nozzles, a mixing chamber and one or more mixture nozzles in connection with a rotary slide valve.
  • the rotary slide valve is located on the inlet side of the Venturi nozzle and interacts functionally with the nozzle.
  • the rotary slide valve which bears against an axis and is caused to rotate by it in a controlled manner, serves as a compressed air valve for the venturi nozzle or nozzles, which is or are arranged in a stationary manner directly behind the rotary slide valve.
  • the negative pressure generated by the Venturi nozzle sucks in the liquid, while the jet of transport, e.g. B. air jet, the Venturi nozzle detects the liquid jet and accelerates the resulting liquid-gas mixture to an outlet opening.
  • a calming zone or a calming tube behind the Venturi nozzle.
  • a deflection or deflection device can also be fitted in this calming tube, which deflects the generated, pulsed beam in the direction of the objects to be acted upon.
  • a punctiform or line-shaped coating or loading of the objects can be achieved if the outlet opening is round.
  • a square or rectangular action on corresponding surfaces of the passing object can be achieved if the outlet opening is slit-shaped.
  • a drum serving as a template is attached to the end of the calming tube and runs synchronously with the rotary valve.
  • So z. B. act differently on the upper and lower punches of a tableting machine or so different figures such as circles, stars, letters, on supports, e.g. B. Place chocolates.
  • the modulation of the emerging beam is also possible using other valve types if the template is synchronized with the frequency of the stamp.
  • the compressed air for the Venturi nozzle is fed via a microdosing valve depending on the frequency and the speed at which the objects are guided past the nozzle opening.
  • the rotary valve takes over this task; for this purpose, the number of revolutions of the axis on which the rotary slide sits is linked to the frequency and speed at which the objects are guided past the nozzle opening.
  • the nozzle combination comprises an injection nozzle valve which is controlled by a pulsating metering pump in synchronism with the required number of cycles.
  • the injector valve mainly consists of the valve seat, an associated piston with an adjusting spring and a leakage connection.
  • a calming pipe connects to the outlet opening of the injection nozzle valve and has air inlet openings in the area immediately after the outlet opening of the valve, which are arranged there axially to the outlet opening of the valve. At the other end of the calming tube are the real ones Outlet openings attached.
  • deflection devices can also be accommodated, which can be carried by an axis so that they rotate with this axis, or which sit rigidly at the end of the calming tube.
  • the metered, pulsed material is deflected by these devices and shot down towards the objects through openings in the lateral surface of the calming tube.
  • a template in front of the openings in the lateral surface or, alternatively, for these openings can provide a modulated application of the material to the carriers to be loaded.
  • a pulsating metering pump designed as a piston pump can be controlled, for example, via a camshaft, the cams of which run synchronously with the number of cycles of the objects sliding past. With this control, it drives under pressure a certain amount of liquid, which is supplied to it from a storage tank, into the space between the piston and nozzle of the injector valve, the piston being pressed against the adjusting spring and thus clearing the way via the valve cone in the direction of the calming tube . As soon as the liquid metering pump blocks the path to the injector valve again, ie a certain amount of liquid has escaped through the opening of the valve, the cone is pressed against its seat again by the restoring force of the spring.
  • a drive unit e.g.
  • FIGS. 1 to 3 which in exemplary form represent a schematic cross section through the devices according to the invention.
  • FIGS 1 and 2 show a Venturi nozzle (1), consisting of one or more air nozzles A in connection with one or more mixing chambers B and one or more mixture nozzles C, one or more suction channels (2) connected to the Venturi nozzles, via a suction line, in which a check valve (7) is located, end in a storage container (6), a propellant line (3) connecting a valve (4) with a venturi nozzle (1), a compressed gas connection (5) , a sensor (9) for generating signals in connection with a controller (10) which actuates the valve (4).
  • a Venturi nozzle (1) consisting of one or more air nozzles A in connection with one or more mixing chambers B and one or more mixture nozzles C, one or more suction channels (2) connected to the Venturi nozzles, via a suction line, in which a check valve (7) is located, end in a storage container (6), a propellant line (3) connecting a valve (4) with a venturi nozzle (1), a compressed gas connection
  • the venturi nozzle (1) which in turn consists of one or more air nozzles A, one or more mixing chambers B and one or more mixture nozzles C, has a rotary slide valve (11) on its inlet side, which is connected to an axis (12 ) is fixed, the axis (12) being driven by a motor M synchronously as a function of the number of nozzle openings (13) to the required speed; as an advantageous embodiment, a calming pipe (14) adjoins the mixture nozzle or nozzles C, at the end of which the metered material emerges through a slot-shaped opening (15).
  • the opening (15) can be made in the extension of the axis (12), but it can also be a deflection device (16) on the axis (12) or on sit on its own axis in the extension of the axis (12) or rigidly at the end of the calming tube (14), which deflects the metered material at right angles.
  • a template (17) can be attached in front of the outlet opening, which ensures a geometrically modulated application of the material to the zones to be loaded.
  • the template (17) itself can form the outlet opening (15) at the end of the calming tube (14), thus representing an extension of the latter; the template (17) can also be arranged rotatably, its drive again being regulated by the controller (10) and being synchronous with the number of cycles.
  • FIG. 3 shows a cross section through a nozzle combination with an injection nozzle valve.
  • An injector valve (8) is controlled by a pulsating metering pump (18) in synchronism with the required number of cycles.
  • the injector valve (8) consists of a valve seat (19), piston (20), adjusting spring (21) and leakage connection (22). Interrupted by air access openings (23), which are arranged in a circle, a settling pipe (14) sits on the valve opening. At the end of the calming tube, slots (15) are provided as outlet openings.
  • a deflection device (16) on the axis (12) ensures the deflection of the material, which if necessary passes a template (17) before it hits the intended zones.
  • the template (17) ensures a modulated application of the goods to the zones to be loaded.
  • An engine M drives a camshaft (24) with cams (25) z.
  • B. a piston pump (18). From a storage container (6), secured by a check valve (7), the liquid is fed to the injection nozzle valve by means of the piston pump (18).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nozzles (AREA)
  • Coating Apparatus (AREA)
  • Confectionery (AREA)
EP89104988A 1988-04-02 1989-03-21 Dispositifs de commande de la distribution de quantités dosées de liquides pulvérisés répartis dans un gaz Withdrawn EP0336198A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3811261 1988-04-02
DE3811261A DE3811261A1 (de) 1988-04-02 1988-04-02 Vorrichtungen zur gesteuerten freisetzung dosierter mengen von in gasen feinverteilten fluessigkeiten

Publications (2)

Publication Number Publication Date
EP0336198A2 true EP0336198A2 (fr) 1989-10-11
EP0336198A3 EP0336198A3 (fr) 1990-08-16

Family

ID=6351319

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89104988A Withdrawn EP0336198A3 (fr) 1988-04-02 1989-03-21 Dispositifs de commande de la distribution de quantités dosées de liquides pulvérisés répartis dans un gaz

Country Status (3)

Country Link
EP (1) EP0336198A3 (fr)
JP (1) JPH01299657A (fr)
DE (1) DE3811261A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108115106A (zh) * 2018-01-25 2018-06-05 温岭立骅机械有限公司 压铸机及其自动喷涂装置
US10967597B2 (en) 2016-12-01 2021-04-06 Fette Compacting Gmbh Method and system for feeding a lubricating or releasing agent to pressing tools of a tablet press

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4007080C2 (de) * 1990-03-07 1995-01-26 Heinz Dipl Ing Baumgart Vorrichtung zum Einbringen und Zerstäuben von förderbaren Medien, insbesondere in Feuerungsräume
DE4412117A1 (de) * 1994-04-08 1995-10-12 Fette Wilhelm Gmbh Verfahren und Vorrichtung zum Aufbringen von pulverförmigem Schmier- oder Trennmittel auf die Preßwerkzeuge in Tablettiermaschinen
DE19730617A1 (de) * 1997-07-17 1999-01-21 Abb Research Ltd Druckzerstäuberdüse
JP4624859B2 (ja) * 2005-06-02 2011-02-02 株式会社畑鉄工所 粉末滑沢剤噴射装置及び回転式粉末圧縮成型機
DE102008026449A1 (de) * 2008-06-03 2009-12-10 Steur, Anne Karin Vorrichtung und Verfahren zum Impuls-Ausstoß von Medium
DE102011112519A1 (de) * 2011-09-07 2013-03-07 Gottfried Wilhelm Leibniz Universität Hannover Vorrichtung zum Aufbringen eines Mediums auf ein Objekt und Verfahren zur Detektion von Abweichungen eines Sprühfeldes
CN108915039B (zh) * 2018-07-27 2021-10-29 厦门建霖健康家居股份有限公司 一种出水装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987001310A1 (fr) * 1985-09-04 1987-03-12 Peterson American Corp. Procede et appareil de revetement par impact a haute pression
EP0255947A2 (fr) * 1986-08-07 1988-02-17 Dr. Fehr GmbH Appareil produisant un jet pulsatoire de liquide
GB2210473A (en) * 1987-09-29 1989-06-07 Michael Andrew Christophe Lowe Control of fluid dispensing

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2334427A1 (fr) * 1975-12-09 1977-07-08 Renault Bloc multibuses de pulverisation de surfaces d'outillages
DE2821141A1 (de) * 1978-05-13 1979-11-22 Eugen Woerner Gmbh & Co Zentra Spruehgeraet zum verspruehen dickfluessiger medien und druckluft
DE3014114C2 (de) * 1980-04-12 1982-04-29 Gema AG Apparatebau, 9015 St. Gallen Einrichtung zum automatischen Beschichten von Gegenständen mit einer Spritzvorrichtung
DE3016458A1 (de) * 1980-04-29 1981-11-19 Robert Bosch Gmbh, 7000 Stuttgart Verfahren zum bestimmen und/oder steuern der beschichtungsstaerke von werkstuecken in beschichtungsanlagen, wie lackier-, pulverbeschichtungsanlagen o.dgl. und, vorrichtung zur durchfuehrung des verfahrens
CH647061A5 (de) * 1980-05-13 1984-12-28 Lonza Ag Verfahren und vorrichtung zum verspruehen von dispersen systemen.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987001310A1 (fr) * 1985-09-04 1987-03-12 Peterson American Corp. Procede et appareil de revetement par impact a haute pression
EP0255947A2 (fr) * 1986-08-07 1988-02-17 Dr. Fehr GmbH Appareil produisant un jet pulsatoire de liquide
GB2210473A (en) * 1987-09-29 1989-06-07 Michael Andrew Christophe Lowe Control of fluid dispensing

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10967597B2 (en) 2016-12-01 2021-04-06 Fette Compacting Gmbh Method and system for feeding a lubricating or releasing agent to pressing tools of a tablet press
CN108115106A (zh) * 2018-01-25 2018-06-05 温岭立骅机械有限公司 压铸机及其自动喷涂装置
CN108115106B (zh) * 2018-01-25 2024-05-17 温岭立骅机械有限公司 压铸机及其自动喷涂装置

Also Published As

Publication number Publication date
EP0336198A3 (fr) 1990-08-16
JPH01299657A (ja) 1989-12-04
DE3811261A1 (de) 1989-10-19

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