EP0709144A1 - Dispositif de distribution dosée d'une masse visqueuse, en particulier d'une masse adhésive et d'étanchéité pour la fabrication de vitrage isolant - Google Patents

Dispositif de distribution dosée d'une masse visqueuse, en particulier d'une masse adhésive et d'étanchéité pour la fabrication de vitrage isolant Download PDF

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Publication number
EP0709144A1
EP0709144A1 EP95116221A EP95116221A EP0709144A1 EP 0709144 A1 EP0709144 A1 EP 0709144A1 EP 95116221 A EP95116221 A EP 95116221A EP 95116221 A EP95116221 A EP 95116221A EP 0709144 A1 EP0709144 A1 EP 0709144A1
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EP
European Patent Office
Prior art keywords
pump
mass
conveys
pumps
nozzle
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Withdrawn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
EP95116221A
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German (de)
English (en)
Inventor
Rudolf Bernhard
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.)
Bystronic Lenhardt GmbH
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Bystronic Lenhardt GmbH
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Filing date
Publication date
Application filed by Bystronic Lenhardt GmbH filed Critical Bystronic Lenhardt GmbH
Publication of EP0709144A1 publication Critical patent/EP0709144A1/fr
Withdrawn legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
    • B05C11/1002—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves
    • B05C11/1007—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves responsive to condition of liquid or other fluent material
    • B05C11/1013—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves responsive to condition of liquid or other fluent material responsive to flow or pressure of liquid or other fluent material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
    • E06B3/673—Assembling the units
    • E06B3/67339—Working the edges of already assembled units
    • E06B3/67343—Filling or covering the edges with synthetic hardenable substances
    • E06B3/67347—Filling or covering the edges with synthetic hardenable substances by extrusion techniques

Definitions

  • the invention relates to a device with the features specified in the preamble of claim 1.
  • a device is known from DE-A-39 37 900.
  • the known device is used to seal an insulating glass pane with an adhesive and sealing compound consisting of two components (base component and hardener). Each of the two components is pumped from a barrel into a buffer with its own pump.
  • the intermediate stores are designed as piston pumps and feed gear pumps, in the case of the basic component an arrangement of two successive ones Gear pumps, which feed the two components to a static mixer, at the end of which there is a nozzle.
  • the arrangements of piston pumps and gear pumps are far too heavy and extensive to be moved with movable nozzles that run off the edge of an insulating glass pane for the purpose of sealing.
  • the pumps are arranged in a stationary manner and connected to the arrangement of mixer and nozzle via heated pressure hoses or heated articulated pipes.
  • These lines cause a considerable pressure loss and, due to the high viscosities (250 - 4000 Pas), require extremely high pressures at the pump outlets.
  • piston pumps DE-A-37 03 929
  • the piston pumps are arranged in a stationary manner and feed the arrangement of mixer and nozzle via heated pressure hoses or heated articulated pipes with the disadvantages for metering accuracy already described.
  • the present invention has for its object a device of the type mentioned for To create volumetric dosing of viscous pastes, in particular in order to feed movable nozzles in insulating glass production, which allows precise dosing with reduced effort.
  • a storage container barrel
  • an intermediate store are required for each component, in which the mass is conveyed by a first pump. So that the components can be mixed with one another in a predetermined quantity ratio, they must be metered into a mixer in the appropriate ratio. This can be done by using a volumetric hydraulic pump for each of the components and synchronizing the hydraulic pumps with each other. However, it is simpler and cheaper to use a common hydraulic pump, to lead branch lines from this hydraulic pump to the various intermediate stores and to provide control valves, in particular proportional valves, in these branch lines, which determine the throughput.
  • the proportional valves are controllable servo valves.
  • the nozzle and the mixer expediently form a unitary assembly on a carrier, on which the intermediate stores belonging to the nozzle are also arranged are.
  • a flexible membrane the edge of which is expediently clamped between two halves of the intermediate storage container and thereby seals the two chambers of the container against one another, is best used as the movable locking member which separates the viscous paste mass from the hydraulic fluid in the intermediate store.
  • a particular advantage of such a buffer is its low susceptibility to wear and its low friction.
  • an intermediate store would also be possible, the chambers of which are separated from one another by a flying piston.
  • such a buffer would be more complex, more difficult to seal and would show more friction and wear.
  • Figure 1 shows an elongated static mixer for two components of a pasty adhesive and sealant, e.g. based on polysulfide.
  • a holder 2 At the outlet of the static mixer 1 there is a holder 2 with a nozzle 3 which can be closed by a valve 4.
  • the opening 5 of the nozzle is aligned with the longitudinal axis 6 of the mixer, about which the mixer together with the nozzle can be rotated.
  • the basic component of the mass is fed to the static mixer 1 via a sleeve 7 which surrounds the rear end of the mixer and in which the mixer is rotatably mounted about its axis 6.
  • a dip tube arranged coaxially to the longitudinal axis 6 leads from the rear the cuff 7 into the mixer 1.
  • the mouth of the dip tube 8 can be closed by a valve cone 9.
  • the valve cone is actuated by an actuating device 10 at the rear end of the dip tube 8 via a rod 11 which extends through the dip tube and has the valve cone 9 at its tip.
  • the second component (the hardener) is fed into the mass via the dip tube.
  • the basic component is fed to the static mixer 1 from an intermediate storage 12, the hardener component from an intermediate storage 13.
  • the basic component is fed to the intermediate storage 12 by a pump 14 from a storage container (barrel), not shown.
  • the hardener component is fed to the intermediate storage 13 by a pump 15 from a storage container (barrel), not shown.
  • In the line 16 from the pump 14 to the intermediate storage 12 there is a check valve 17; in the line 18 from the pump 15 to the buffer 13 there is also a check valve 19; the two check valves 17 and 19 block in the direction of the pumps 14 and 15.
  • In the lines 20 and 21 from the intermediate stores 12 and 13 to the static mixer there are check valves 22 and 23 which move in the direction of the intermediate stores 12 and 13 and the pumps 14 and lock 15.
  • the intermediate storage 12 is divided into two chambers 25 and 26 by a membrane 24.
  • the intermediate storage 13 is divided by a membrane 27 into two chambers 28 and 29.
  • Chamber 25 houses the base component, chamber 28 the hardener component and chambers 26 and 29 hold hydraulic oil.
  • the hydraulic oil is supplied by means of a hydraulic pump 30 via a feed line 31, which branches into two branches 32 and 33, in which there are proportional valves 34 and 35 designed as servo valves, which determine the quantitative throughput of the hydraulic oil through the branch lines 32 and 33.
  • Return lines 36 and 37 branch off from the branch lines between the proportional valves 34 and 35 and the intermediate stores 12 and 13, in which check valves 38 and 39 and 2/2-way valves 40 and 41 are located.
  • the return lines lead to a tank with hydraulic oil, from which the hydraulic pump 30 is also supplied.
  • the arrangement of static mixer 1 and nozzle 3 is attached to a carrier 43 which can be moved up and down on a guide column 44.
  • the guide column extends parallel to a flat support wall 45 which, like the guide column 44, is inclined to the rear by a few degrees.
  • the support wall 45 is supported by a frame 46 which also carries a horizontal conveyor 47 which extends along the bottom edge of the support wall Retaining wall extends. On this horizontal conveyor 47, insulating glass panes standing and leaning against the support wall 45 can be conveyed and sealed into the effective area of the nozzle.
  • the nozzle reaches from behind the support wall or through a gap between two support wall sections into the area immediately in front of the support wall, where the insulating glass pane is located on the horizontal conveyor 47.
  • the carrier 43 not only carries the arrangement of mixer 1 and nozzle 3, but also the two intermediate stores 12 and 13 and the proportional valves 34 and 35 assigned to them.
  • FIG. 3 An example of a possible structure of the buffer is shown in FIG. 3.
  • the intermediate storage 12 has an oval housing, consisting of two halves 48 and 49, which are screwed together by a union nut.
  • the two housing halves 48 and 49 clamp the thickened edge of a flexible membrane 24 made of a chemically resistant Plastic between them.
  • the membrane 24 divides the housing into two chambers 25 and 26.
  • a viscous paste mass is pumped into the chamber 25 via the feed line 22.
  • Hydraulic oil is pumped into the chamber 26 via the branch line 32.
  • a stiff valve plate 51 is embedded in the membrane 24 opposite the mouth of the feed line 22. In this way it is ensured that the membrane does not tear when the chamber 25 is empty and pressure oil is still present on the opposite side of the membrane 24, because then the valve disk 51 can be supported in the area surrounding the mouth of the supply line 22.
  • a pressure sensor 52 is provided in the feed line 22 for the viscous paste mass, which permits monitoring of the delivery pressure.
  • a flow meter 53 is provided in the branch line 32, which enables the flow rate to be checked and subsequently regulated using the proportional valve 34.
  • the dosing device works as follows: Starting from the position of the membrane 24 shown in FIG. 3, the buffer store 12 must first be filled with the main component. This filling process is started at the latest when the pressure sensor 52 signals a pressure drop, which is caused by the fact that the membrane 24 has no further base component can displace more. The pump 14 is then switched on, so that it pumps the basic component into the intermediate storage 12. If the membrane 24 bears against the opposite wall in the region of the mouth of the branch line 32, the pressure in the supply line 22 inevitably rises; this pressure increase is signaled by the sensor 52 and switches off the pump 14. The buffer store 13 for the hardener component is filled in a corresponding manner.
  • the device is now ready for the actual metering process, which can be started by pushing the directional control valves 40 and 41 into their position with the hydraulic pump 30 running, in which they shut off the return lines 36 and 37.
  • the hydraulic pump 30, which is secured against excess pressure, then delivers hydraulic fluid into the two branch lines 32 and 33, the throughput through these lines being determined by the proportional valves 34 and 35.
  • the amounts of hydraulic oil metered in this way enter the intermediate stores 12 and 13 and displace there an equal amount of the base component or the hardener component, which enter the static mixer 1 in the ratio determined by the setting of the proportional valves 34 and 35, while of the passage through the mixer are mixed together, reach the nozzle 3 and exit from its opening 5.
  • the cache 12 and 13 can be refilled during sealing breaks; they will be refilled at the latest when they are empty. If you want to guarantee uninterrupted sealing under all circumstances, you can provide at least for the base component, possibly also for the hardener component, a second buffer, which is operated alternately with the first buffer, so that a buffer can always be refilled while out the other is dosed.
  • the flow meter can also be used to monitor the fill level in the buffer, since this clearly results from the inflows and outflows that the flow meter monitors.
  • a microcomputer can draw conclusions about the fill level from the current flow measurement data and start the refill process at suitable times before the buffer memory is empty.
  • the preferred field of application of the invention is the production of insulating glass.
  • the invention can also be used in other technical fields in which single and multi-component adhesives are used in exact doses.
  • the invention is also suitable for the metered delivery of foams.

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  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Coating Apparatus (AREA)
  • Adhesives Or Adhesive Processes (AREA)
EP95116221A 1994-10-27 1995-10-14 Dispositif de distribution dosée d'une masse visqueuse, en particulier d'une masse adhésive et d'étanchéité pour la fabrication de vitrage isolant Withdrawn EP0709144A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4438125 1994-10-27
DE4438125A DE4438125C1 (de) 1994-10-27 1994-10-27 Vorrichtung zum dosierten Abgeben einer zähpastösen Masse, insbesondere einer Kleb- und Dichtmasse für die Herstellung von Isolierglasscheiben

Publications (1)

Publication Number Publication Date
EP0709144A1 true EP0709144A1 (fr) 1996-05-01

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EP95116221A Withdrawn EP0709144A1 (fr) 1994-10-27 1995-10-14 Dispositif de distribution dosée d'une masse visqueuse, en particulier d'une masse adhésive et d'étanchéité pour la fabrication de vitrage isolant

Country Status (2)

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EP (1) EP0709144A1 (fr)
DE (1) DE4438125C1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19735622C1 (de) * 1997-08-07 1998-08-13 Lenhardt Maschinenbau Maschine zum Füllen der Randfuge von Isolierglasscheiben mit einer Versiegelungsmasse aus zwei Komponenten
WO1999007462A1 (fr) 1997-08-07 1999-02-18 Lenhardt Maschinenbau Gmbh Machine pour garnir le joint marginal de vitres isolantes d'une matiere de scellement a base de deux composants

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITTV20060187A1 (it) * 2006-10-20 2008-04-21 For El Base Di Vianello Fortunato & C Snc Macchina automatica per l'applicazione versatile ed alternativa di almeno due tipologie di sigillante lungo il bordo perimetrale del vetro isolante
ITPN20100050A1 (it) * 2010-09-17 2012-03-18 Meccaniche Di Battellin O Gianni Costruzioni Macchina di sigillatura automatica di lastre di vetro per usi diversi
AT522243B1 (de) * 2019-07-11 2020-09-15 Lisec Austria Gmbh Verfahren und Vorrichtung zum Füllen von Hohlprofilleisten

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2426561A1 (fr) * 1978-05-25 1979-12-21 Saint Gobain Injection de matiere plastique sur les bords d'un vitrage multiple
EP0041033A2 (fr) * 1980-05-28 1981-12-02 Gaston Laury Dispositif d'application d'un produit liquide visqueux, et notamment d'un mélange collant, sur un support, et installation d'encollage équipée de ce dispositif
EP0271662A2 (fr) * 1986-12-17 1988-06-22 VEGLA Vereinigte Glaswerke GmbH Installation d'éjection d'une quantité dosée d'un fluide visqueux
DE3703929A1 (de) 1987-02-09 1988-08-18 Karl Lenhardt Vorrichtung zum foerdern von zwei zaehfluessigen oder pastoesen substanzen in vorgegebenem mengenverhaeltnis aus zwei vorratsbehaeltern zu einer oder mehreren duesen
WO1988006925A1 (fr) * 1987-03-11 1988-09-22 Institutet För Verkstadsteknisk Forskning Dispositif d'application d'une substance liquide ou plastique
DE3913000A1 (de) 1988-04-20 1989-12-07 Lenhardt Maschinenbau Vorrichtung zum abgeben hochviskoser, pastoeser, kompressibler substanzen
DE3937900A1 (de) 1989-07-13 1991-01-17 Lenhardt Maschinenbau Vorrichtung zum foerdern von fluessigen oder pastoesen substanzen
DE9101466U1 (fr) * 1990-02-28 1991-05-02 Lisec, Peter, Amstetten-Hausmening, Niederoesterreich, At

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2426561A1 (fr) * 1978-05-25 1979-12-21 Saint Gobain Injection de matiere plastique sur les bords d'un vitrage multiple
EP0041033A2 (fr) * 1980-05-28 1981-12-02 Gaston Laury Dispositif d'application d'un produit liquide visqueux, et notamment d'un mélange collant, sur un support, et installation d'encollage équipée de ce dispositif
EP0271662A2 (fr) * 1986-12-17 1988-06-22 VEGLA Vereinigte Glaswerke GmbH Installation d'éjection d'une quantité dosée d'un fluide visqueux
DE3703929A1 (de) 1987-02-09 1988-08-18 Karl Lenhardt Vorrichtung zum foerdern von zwei zaehfluessigen oder pastoesen substanzen in vorgegebenem mengenverhaeltnis aus zwei vorratsbehaeltern zu einer oder mehreren duesen
WO1988006925A1 (fr) * 1987-03-11 1988-09-22 Institutet För Verkstadsteknisk Forskning Dispositif d'application d'une substance liquide ou plastique
DE3913000A1 (de) 1988-04-20 1989-12-07 Lenhardt Maschinenbau Vorrichtung zum abgeben hochviskoser, pastoeser, kompressibler substanzen
DE3937900A1 (de) 1989-07-13 1991-01-17 Lenhardt Maschinenbau Vorrichtung zum foerdern von fluessigen oder pastoesen substanzen
DE9101466U1 (fr) * 1990-02-28 1991-05-02 Lisec, Peter, Amstetten-Hausmening, Niederoesterreich, At

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19735622C1 (de) * 1997-08-07 1998-08-13 Lenhardt Maschinenbau Maschine zum Füllen der Randfuge von Isolierglasscheiben mit einer Versiegelungsmasse aus zwei Komponenten
WO1999007462A1 (fr) 1997-08-07 1999-02-18 Lenhardt Maschinenbau Gmbh Machine pour garnir le joint marginal de vitres isolantes d'une matiere de scellement a base de deux composants
US6234355B1 (en) 1997-08-07 2001-05-22 Lenhardt Maschinenbau Gmbh Machine for filling the edge joints of insulating glass panes with a sealing compound consisting of two constituents
DE19834444C2 (de) * 1997-08-07 2003-04-30 Lenhardt Maschinenbau Maschine zum Füllen der Randfuge von Isolierglasscheiben mit einer Versiegelungsmasse aus zwei Komponenten

Also Published As

Publication number Publication date
DE4438125C1 (de) 1996-02-22

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