EP0222258A2 - Vorrichtung zur Überwachung der Abgabe eines flüssigen oder halbflüssigen Produktes - Google Patents

Vorrichtung zur Überwachung der Abgabe eines flüssigen oder halbflüssigen Produktes Download PDF

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Publication number
EP0222258A2
EP0222258A2 EP86115013A EP86115013A EP0222258A2 EP 0222258 A2 EP0222258 A2 EP 0222258A2 EP 86115013 A EP86115013 A EP 86115013A EP 86115013 A EP86115013 A EP 86115013A EP 0222258 A2 EP0222258 A2 EP 0222258A2
Authority
EP
European Patent Office
Prior art keywords
spray
jet
emitter
receiver means
counter
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Withdrawn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
EP86115013A
Other languages
English (en)
French (fr)
Other versions
EP0222258A3 (de
Inventor
Lucio Grilli
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.)
Sillem 'italiana Lavorazione Legno E Metalli SpA Soc
Original Assignee
Sillem 'italiana Lavorazione Legno E Metalli SpA Soc
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 Sillem 'italiana Lavorazione Legno E Metalli SpA Soc filed Critical Sillem 'italiana Lavorazione Legno E Metalli SpA Soc
Publication of EP0222258A2 publication Critical patent/EP0222258A2/de
Publication of EP0222258A3 publication Critical patent/EP0222258A3/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C7/00—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts
    • 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
    • B05B12/082—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 a condition of the discharged jet or spray, e.g. to jet shape, spray pattern or droplet size

Definitions

  • This invention relates to a device for checking if a conventional spray apparatus for fluid or semifluid products, such as abrasive pastes, paints or lubricants, regularly emits product spray.
  • abrasive paste for the surface finishing (for example polishing) of articles such as saucepans and other metal receptacles in apparatuses which operate on such articles by means of rotary tools such as discs or brushes
  • apparatuses are known to comprise at least one spray gun which at predetermined intervals sprays given quantities of abrasive paste into the working zone.
  • the discs or brushes act on the article by way of the abrasive paste, so polishing it.
  • the apparatuses in question generally form part of a complex plant comprising several working positions, often located in highly automated anti-pollution cabins.
  • any failure in the delivery of the abrasive paste leads not only to the production of unsuitable articles which have to be again passed through the working cycle, but in certain cases also to the irreversible deformation of the article by heat and in particular to the combustion of the discs or brushes (in this respect it should be noted that the abrasive paste also acts as a lubricant and coolant).
  • the main object of the present invention is therefore to provide a device able to sense the more or less protracted absence of the jet or spray, so as to enable adequate measures to be adopted in order to remedy the situation deriving from the absence of the product jet or spray.
  • a device characterised essentially in that the direction of the jet or spray interferes with that of a radiation beam which extends between emitter and receiver means, these means being kept clean pneumatically.
  • the emitter and receiver means comprise optical fibres associated with light radiation generators and optoelectronic transducers for converting the light energy into an electrical signal.
  • Those terminations of the optical fibres which face the jet are kept clean pneumatically by an air stream which prevents the product or dirt in general from reaching said terminations.
  • the reference numeral 1 indicates a conventional head or gun for spraying quantities of abrasive paste towards a user point represented for example by a known apparatus for the polishing or other surface-working of an article, such as a saucepan, by means of a pair of rotary discs or brushes acting on the article.
  • the gun or head is operated by compressed air supplied by a source 2 through a solenoid valve 3.
  • the abrasive paste is fed to the gun under pressure from a tank 4 through a controlled valve 5.
  • the gun is supported vertically in known manner above the machine working zone by support means, also of known type, and comprises a nozzle 6 the vertical spray axis of which is indicated by 7 in Figure 1.
  • an inverted-U bracket 8 On the lower end of the gun there is mounted an inverted-U bracket 8, provided for this purpose with a central hole 9 and retained on the gun by a nut 9A.
  • each arm 8A, 8B of the bracket 8 in proximity to its lower end, there is provided a cavity 10A, B of horizontal axis, closed by a cover 11A, B on the outer side of the arm.
  • the two cavities are coaxial.
  • the covers 11A, B are fixed to the relative arms by screws, not shown, and are provided centrally with a through bore 12A, B. Through this through bore there extends a metal sheath or sleeve 13A, B, threaded over at least a central part, and supporting the end of an optical fibre 14A, B.
  • the sheath and the termination of the optical fibre finish in the relative cavity 10A, B.
  • the optical fibre terminations face each other and are coaxial.
  • Two nuts 15A, B; 16A, B secure each sleeve 13A, B and thus the terminations of the optical fibres of the relative covers 11A, B, and are used to set them coaxial.
  • the sheath diameter is less than the diameter of the cover bore.
  • the other terminations of the optical fibres 14A, B finish at a luminous radiation source 17 (for example an LED) and at a photoelectronic transducer 18 (for example a photoelectric cell).
  • a luminous radiation source 17 for example an LED
  • a photoelectronic transducer 18 for example a photoelectric cell
  • the cavities 10A, B are closed by a wall provided with a central bore 19A, B, coaxial to the terminations of the optical fibres 14A, B. These bores are also mutually coaxial. Around these bores there are also provided other bores 20A, B which preferably mutually diverge from the inside towards the outside of the cavities.
  • the head 1 forms part of an automated machine or plant for polishing articles such as saucepans.
  • a sequence of operations are effected in accordance with an assigned programme set on a programmer device (for example a microprocessor), these including for example the loading and unloading of the article.
  • a quantity of abrasive paste has to be sprayed into the machine working zone at a frequency determined by the programme.
  • the programme operates in the indicative example of Figure 2 by determining for each required spray emission the temporary closure of the contact 30, thus opening the solenoid valve 3 which feeds the operating air to the head 1 and the energisation of the relay 31 which closes and opens the relative contact 32 pulse-wise.
  • a pulse is fed to a counter 33 which counts the pulse.
  • the relay 34 does not become temporarily de-energised, so that no zeroing signal reaches the counter 33, with the result that this latter still indicates "1". If spray is produced with the next closure, the counter which has now counted "2"is zeroed. If the spray is again not produced, the counter remains at "2". If the counter is set to emit a signal to the output line 40 should three consecutive spray discharges fail to emerge, a signal appears in the line 40 on the fourth activation of the valve 3, ie when the counter reaches "4".
  • the signal in the line 40 can be used in various ways to stop the machine or plant and/or to emit an alarm or warning signal.
  • the counter can be adjusted so as to vary the count level at which the signal is emitted to the line 40.
  • circuit is only one of the possible circuits which can be used.
  • the circuit can be in the form of discrete electronic components or can be based on a microprocessor, and moreover the method of operation can also be different.
  • Figures 3 and 4 the abscissae indicate time and the ordinates indicate the counting and zeroing pulses.
  • Figure 3 relates to the case in which spraying takes place regularly.
  • the pulse is transmitted to the counter 33 by way of the contact 32 at times t'1, 2, 3, n, and the zeroing pulse is transmitted to the counter by way of the contact 35 at times t'1, 1, 3, n by virtue of the fact that spraying takes place regularly.
  • the time intervals t'1-t1, t'2-t2 etc. represent the delay between the two events.
  • Figure 4 shows the case in which the spray does not appear on three consecutive occasions, so that on the fourth closure of the contact 32 a signal appears at the output 40 of the counter 33.
  • the counter receives a pulse at time t1. Because the spray does not appear, ie because the contact 35 does not close, zeroing does not take place. The counter therefore counts "1". At time t2 the counter 33 received a further pulse, but as there is no spray the counter counts "2". At time t3 the counter likewise counts "3". At time t4, assuming that the counter 33 has been set to emit a signal to the line 40 after three spray failures, a signal appears in this line. When the trouble has been overcome, the operator zeroes the counter 33 before starting the machine or plant. Zeroing is done by pressing a pushbutton 41.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Spray Control Apparatus (AREA)
  • Nozzles (AREA)
EP86115013A 1985-11-11 1986-10-29 Vorrichtung zur Überwachung der Abgabe eines flüssigen oder halbflüssigen Produktes Withdrawn EP0222258A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT22774/85A IT1186192B (it) 1985-11-11 1985-11-11 Dispositivo di verifica della erogazione di prodotti fluidi o semifluidi
IT2277485 1985-11-11

Publications (2)

Publication Number Publication Date
EP0222258A2 true EP0222258A2 (de) 1987-05-20
EP0222258A3 EP0222258A3 (de) 1987-09-16

Family

ID=11200321

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86115013A Withdrawn EP0222258A3 (de) 1985-11-11 1986-10-29 Vorrichtung zur Überwachung der Abgabe eines flüssigen oder halbflüssigen Produktes

Country Status (2)

Country Link
EP (1) EP0222258A3 (de)
IT (1) IT1186192B (de)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4930441A (en) * 1988-12-28 1990-06-05 Pitney Bowes Inc. Verification of operability of moistener
US5090626A (en) * 1988-06-06 1992-02-25 Industrieelektronik Dr-Ing Walter Klaschika Gmbh & Co. Apparatus for producing a very thin mist of power and controls for producing thin mist of power
EP0546294A1 (de) * 1991-11-04 1993-06-16 Nordson Corporation Verfahren und Vorrichtung zur optischen Überwachung und Steuerung eines Werkstoffadens
US5288028A (en) * 1992-09-10 1994-02-22 Alpheus Cleaning Technologies Corp. Apparatus for enhancing the feeding of particles from a hopper
EP0662367A1 (de) * 1993-12-23 1995-07-12 Hughes Aircraft Company CO2-Sprühstrahlsystem mit einem thermischen CO2-Schneestromanzeiger
WO1995026523A1 (en) * 1994-03-28 1995-10-05 Nordson Corporation Monitor for fluid dispensing system
EP0732150A1 (de) * 1995-03-13 1996-09-18 Hughes Aircraft Company Optischer Fühler für CO2-Sprühstrahlsysteme
EP0775531A2 (de) * 1995-11-24 1997-05-28 Seidenader Maschinenbau GmbH Verfahren und Vorrichtung zur kontinuierlichen Überwachung der Flüssigkeitszugabe
DE19842266A1 (de) * 1998-09-15 2000-03-16 Windmoeller & Hoelscher Verfahren zum Steuern von Klebstoffaufträgen auf kontinuierlich bewegte Sack- oder Beutelwerkstücke
US6629397B1 (en) 1997-12-04 2003-10-07 Focke & Co. (Gmbh) Machine monitoring apparatus capable of incorporation into a network
DE102005010847A1 (de) * 2005-03-07 2006-09-21 Rea Elektronik Gmbh Verfahren und Vorrichtung zur Messung einer austretenden Flüssigkeit
US20150231657A1 (en) * 2014-02-14 2015-08-20 Taiwan Semiconductor Manufacturing Company Ltd. Nozzle having real time inspection functions
DE102016114607A1 (de) * 2016-08-05 2018-02-08 Infineon Technologies Ag Flüssigkeitsabgabesystem, -Vorrichtung und -Verfahren

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1408552A (fr) * 1964-09-21 1965-08-13 Voegele Ag J Appareil pour la production d'un courant de brouillard formé d'air comprimé et d'un liquide, notamment appareil de pulvérisation d'huile
FR1410027A (fr) * 1964-09-29 1965-09-03 Stewart Warner Corp Installation de contrôle de l'opacité d'un fluide en mouvement
JPS54120650A (en) * 1978-03-13 1979-09-19 Sumitomo Metal Ind Ltd Automatic control of rate of oil application
JPS55104670A (en) * 1979-02-06 1980-08-11 Dainippon Printing Co Ltd Controlling method of atomizing amount of disinfectant liquid
JPS5831311A (ja) * 1981-08-19 1983-02-24 Matsushita Electric Ind Co Ltd 透過形光結合装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1408552A (fr) * 1964-09-21 1965-08-13 Voegele Ag J Appareil pour la production d'un courant de brouillard formé d'air comprimé et d'un liquide, notamment appareil de pulvérisation d'huile
FR1410027A (fr) * 1964-09-29 1965-09-03 Stewart Warner Corp Installation de contrôle de l'opacité d'un fluide en mouvement
JPS54120650A (en) * 1978-03-13 1979-09-19 Sumitomo Metal Ind Ltd Automatic control of rate of oil application
JPS55104670A (en) * 1979-02-06 1980-08-11 Dainippon Printing Co Ltd Controlling method of atomizing amount of disinfectant liquid
JPS5831311A (ja) * 1981-08-19 1983-02-24 Matsushita Electric Ind Co Ltd 透過形光結合装置

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTACTS OF JAPAN, vol. 3, no. 142 (C-65), 24th November 1979; & JP-A-54 120 650 (SUMITOMO KINZOKU KOGYO K.K.) 19-09-1979 *
PATENT ABSTRACTS OF JAPAN, vol. 4, no. 159 (C-30)[641], 6th November 1980; & JP-A-55 104 670 (DAINIPPON INSATSU K.K.) 11-08-1980 *
PATENT ABSTRACTS OF JAPAN, vol. 7, no. 109 (P-196)[1254], 12th May 1983; & JP-A-58 31 311 (MATSUSHITA DENKI SANGYO K.K.) 24-02-1983 *

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5090626A (en) * 1988-06-06 1992-02-25 Industrieelektronik Dr-Ing Walter Klaschika Gmbh & Co. Apparatus for producing a very thin mist of power and controls for producing thin mist of power
US4930441A (en) * 1988-12-28 1990-06-05 Pitney Bowes Inc. Verification of operability of moistener
EP0546294A1 (de) * 1991-11-04 1993-06-16 Nordson Corporation Verfahren und Vorrichtung zur optischen Überwachung und Steuerung eines Werkstoffadens
US5380366A (en) * 1991-11-04 1995-01-10 Nordson Corporation Apparatus for optically monitoring and controlling a moving fiber of material
US5288028A (en) * 1992-09-10 1994-02-22 Alpheus Cleaning Technologies Corp. Apparatus for enhancing the feeding of particles from a hopper
US5637027A (en) * 1993-12-23 1997-06-10 Hughes Aircraft Company CO2 jet spray system employing a thermal CO2 snow plume sensor
EP0662367A1 (de) * 1993-12-23 1995-07-12 Hughes Aircraft Company CO2-Sprühstrahlsystem mit einem thermischen CO2-Schneestromanzeiger
US5808559A (en) * 1994-03-28 1998-09-15 Nordson Corporation Monitor for fluid dispensing system
US5481260A (en) * 1994-03-28 1996-01-02 Nordson Corporation Monitor for fluid dispensing system
WO1995026523A1 (en) * 1994-03-28 1995-10-05 Nordson Corporation Monitor for fluid dispensing system
US5999106A (en) * 1994-03-28 1999-12-07 Nordson Corporation Monitor for fluid dispensing system
EP0732150A1 (de) * 1995-03-13 1996-09-18 Hughes Aircraft Company Optischer Fühler für CO2-Sprühstrahlsysteme
EP0775531A2 (de) * 1995-11-24 1997-05-28 Seidenader Maschinenbau GmbH Verfahren und Vorrichtung zur kontinuierlichen Überwachung der Flüssigkeitszugabe
EP0775531A3 (de) * 1995-11-24 1998-03-18 Seidenader Maschinenbau GmbH Verfahren und Vorrichtung zur kontinuierlichen Überwachung der Flüssigkeitszugabe
US6629397B1 (en) 1997-12-04 2003-10-07 Focke & Co. (Gmbh) Machine monitoring apparatus capable of incorporation into a network
FR2783198A1 (fr) * 1998-09-15 2000-03-17 Windmoeller & Hoelscher Procede de commande d'applications de colle sur des pieces de sac ou de sachet se deplacant continuellement
DE19842266A1 (de) * 1998-09-15 2000-03-16 Windmoeller & Hoelscher Verfahren zum Steuern von Klebstoffaufträgen auf kontinuierlich bewegte Sack- oder Beutelwerkstücke
DE19842266B4 (de) * 1998-09-15 2004-11-04 Windmöller & Hölscher Kg Verfahren zum Steuern von Klebstoffaufträgen auf kontinuierlich bewegte Sack- oder Beutelwerkstücke
DE102005010847A1 (de) * 2005-03-07 2006-09-21 Rea Elektronik Gmbh Verfahren und Vorrichtung zur Messung einer austretenden Flüssigkeit
DE102005010847B4 (de) * 2005-03-07 2007-08-02 Rea Elektronik Gmbh Vorrichtung zur Messung einer austretenden Flüssigkeit
US20150231657A1 (en) * 2014-02-14 2015-08-20 Taiwan Semiconductor Manufacturing Company Ltd. Nozzle having real time inspection functions
US10504758B2 (en) * 2014-02-14 2019-12-10 Taiwan Semiconductor Manufacturing Company Ltd. Nozzle having real time inspection functions
DE102016114607A1 (de) * 2016-08-05 2018-02-08 Infineon Technologies Ag Flüssigkeitsabgabesystem, -Vorrichtung und -Verfahren
US10906057B2 (en) 2016-08-05 2021-02-02 Infineon Technologies Ag Liquid-dispensing system, apparatus and method

Also Published As

Publication number Publication date
EP0222258A3 (de) 1987-09-16
IT1186192B (it) 1987-11-18
IT8522774A0 (it) 1985-11-11

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