EP0549648B1 - Vorrichtung zum fördern von isolierglasscheiben - Google Patents

Vorrichtung zum fördern von isolierglasscheiben Download PDF

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Publication number
EP0549648B1
EP0549648B1 EP91916555A EP91916555A EP0549648B1 EP 0549648 B1 EP0549648 B1 EP 0549648B1 EP 91916555 A EP91916555 A EP 91916555A EP 91916555 A EP91916555 A EP 91916555A EP 0549648 B1 EP0549648 B1 EP 0549648B1
Authority
EP
European Patent Office
Prior art keywords
insulating glass
glass panes
bearing faces
wedge
conveying
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.)
Expired - Lifetime
Application number
EP91916555A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0549648A1 (de
Inventor
Karl Lenhardt
Rudolf Bernhardt
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
Original Assignee
Bystronic Lenhardt 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
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Application filed by Bystronic Lenhardt GmbH filed Critical Bystronic Lenhardt GmbH
Publication of EP0549648A1 publication Critical patent/EP0549648A1/de
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Classifications

    • 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
    • E06B3/67365—Transporting or handling panes, spacer frames or units during assembly
    • 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
    • E06B3/67365—Transporting or handling panes, spacer frames or units during assembly
    • E06B3/67382—Transport of panes or units without touching the bottom edge
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/17—Surface bonding means and/or assemblymeans with work feeding or handling means
    • Y10T156/1702—For plural parts or plural areas of single part
    • Y10T156/1744—Means bringing discrete articles into assembled relationship

Definitions

  • the invention relates to a device for conveying insulating glass panes with a horizontal conveyor, which has support surfaces on an endless conveying member, on which the insulating glass panes stand, and with a support device which extends parallel to the horizontal conveyor and through one or more supporting elements, against which the insulating glass panes are placed on the horizontal conveyor defines a pane running plane.
  • a device for conveying insulating glass panes with a horizontal conveyor which has support surfaces on an endless conveying member, on which the insulating glass panes stand, and with a support device which extends parallel to the horizontal conveyor and through one or more supporting elements, against which the insulating glass panes are placed on the horizontal conveyor defines a pane running plane.
  • a device is known from DE-U-80 27 173.
  • Devices according to the invention are used in production lines for insulating glass, in that area where a semi-finished insulating glass pane, usually composed of two or three individual glass panes with the interposition of one or two spacer frames coated on both sides with an adhesive, is handled.
  • a semi-finished insulating glass pane has an all-round edge joint which is filled with an initially pasty and subsequently curing sealant, the task of which is to ensure a permanent, firm bond between the individual members forming the insulating glass pane
  • Thiocols and polyurethane are mainly used as sealants.
  • the production lines contain a sealing station in which the insulating glass panes are sealed by one or more nozzles which are guided along the edges of the pane (DE-C-28 16 437).
  • the device according to the invention is primarily intended for use in such a sealing station.
  • the device known from DE-U-80 27 173 has a horizontal conveyor with two synchronously driven, endless chains, which are arranged parallel to each other and bear opposing pairs and pressure jaws in pairs.
  • the lower edge of the insulating glass panes stands on the supports, the supports only partially engaging under the insulating glass panes from the outer edge, so that the edge joint remains free.
  • the pressure jaws ensure that the insulating glass panes do not slide off the supports during conveying and that no slippage occurs.
  • one of the conveyor chains together with deflection gears, around which they are guided can be displaced at right angles to the conveying direction and to the axes of rotation of the deflection gears.
  • a support device is provided above the horizontal conveyor, against which the insulating glass panes are based.
  • the device known from DE-U-80 27 173 it is a height-adjustable support roller row which supports the insulating glass panes close to their upper edge.
  • the supports of the known device engage under the insulating glass panes from the outer edge to a certain extent, but leave the edge joint free. This is to prevent the horizontal conveyor from absorbing some of the pasty sealant that is filled into the edge joint.
  • the sealant often also covers the lower edge of the glass panes from which the insulating glass pane is formed; in this case, the horizontal conveyor absorbs some of the pasty sealing compound and transfers some of it to subsequent insulating glass panes; the pressure jaws can even transfer sealing compound that protrudes from the edge joint to the outside of the insulating glass panes.
  • Another disadvantage of the known device is that the insulating glass panes can become jammed between the pressure jaws at the lower edge of the insulating glass panes, especially since the edges of the glass panes are not smooth but broken and therefore have irregularities.
  • Another disadvantage of the known device is that a sealed insulating glass pane is only removed can be released after the clamping exerted by the pressure jaws by relocating the one conveyor chain; there is a risk of the insulating glass pane sliding off the horizontal conveyor. The last-mentioned disadvantage is avoided by conveying devices as described in DE-C-28 16 437 and DE-U-89 05 421.
  • the device known from DE-PS 34 00 031 which only has supports on a conveyor chain, reduces the risk of contamination and chipping, but can also be avoided In this case, the insulating glass pane can only be removed after its clamping has been released.
  • the present invention has for its object to provide a device for the conveyance of upright, sealed insulating glass panes that, like the devices known from DE-U-80 27 173 and DE-C-34 00 031, leave the edge gap, but are of simpler construction and in which the insulating glass panes are secured against slipping even in the transition phase from conveying to lifting out.
  • the device according to the invention has a horizontal conveyor for conveying insulating glass panes, which has support surfaces on an endless conveying member, which are in alignment with two planes which are parallel to the conveying direction and form an upwardly opening wedge, the bisector of which is a plane parallel to the pane running plane.
  • This horizontal conveyor becomes relative to that by the support means Defined pane running plane arranged that the insulating glass pane to be conveyed is in the middle between the two planes forming the wedge.
  • the support surfaces of the horizontal conveyor according to the invention support the insulating glass pane only on the two outer edges of its lower edge.
  • the support surfaces can even reach down to the apex of the wedge, and can even be formed on one and the same support body, because unlike the horizontal conveyor known from DE-U-80 27 173, the mutual must The distance between the support surfaces for adapting to insulating glass panes of different thicknesses can in no way be changed, which is why the horizontal conveyor according to the invention is constructed much more simply and can manage with a single endless conveyor link, for example a chain, a belt or a belt, which carries the entirety of the supports.
  • the invention provides for the horizontal conveyor to be displaced at right angles to the conveying direction parallel to the surface of the supporting surface which is adjacent to the plane of the pane running. In this way, the distance of the apex of the wedge from the disk running plane is changed and moves downwards when it moves away from the disk running plane, and moves upwards when it approaches the disk running plane. It is thereby achieved that the level of the conveying plane, on which the insulating glass panes stand with their lower edge, remains the same for insulating glass panes of all occurring thicknesses, which is the prerequisite for the device according to the invention being in an insulating glass production line can be inserted.
  • the drive for the transverse displacement of the horizontal conveyor can be controlled by an automatically operating measuring device which measures the thickness of the insulating glass pane before an insulating glass pane enters the device according to the invention.
  • an automatically operating measuring device which measures the thickness of the insulating glass pane before an insulating glass pane enters the device according to the invention.
  • the horizontal conveyor according to the invention is that it is not only used for insulating glass panes in which the sealing compound forms a concave surface in the edge joint, but also in those insulating glass panes in which it is flat, terminating with the lower edge of the glass panes or even one convex, protruding surface, can be used with good success because the support surfaces do not reach under the insulating glass panes, but only support on the outer edges. Because of the greatly reduced tendency of the support surfaces to receive sealing compound, the effort for cleaning the horizontal conveyor is also greatly reduced and, moreover, can be carried out more easily because only support surfaces but no longer upstanding pressure jaws need to be cleaned.
  • the sealing compound taken up by the horizontal conveyor can no longer be transferred to the side surfaces of the insulating glass panes
  • secondly what can a particularly great relief - the insulating glass pane can be lifted off the horizontal conveyor at any time without any problems (in the case of the horizontal conveyor known from DE-U-80 27 173, the clamping had to be released first, which entailed the risk of the insulating glass pane sliding down) and thirdly the risk of chipping has been reduced, although the insulating glass panes are only supported on their outer edges.
  • the supports can in principle be arranged in any dense sequence, yes, it is even possible to use two endless, synchronously running belts or belts in a wedge-shaped arrangement, which are special because of their continuous contact surface easy to clean.
  • a height-adjustable support roller row could be used, the height of which is adjusted from case to case in such a way that the insulating glass panes only lean against this support roller row with their upper edge; such a support device is known from DE-U-80 27 173.
  • a support device is known from DE-U-80 27 173.
  • an air cushion wall as a support device, which is known for this purpose from DE-C-28 16 437 and from DE-C-34 00 031.
  • the insulating glass panes are usually not conveyed in an exactly vertical position, but are leaned out of the vertical against the support device so that they cannot fall out of the device.
  • the support device defines with its front side a pane running plane; the pane running plane is understood here to mean the plane in which the surface of the insulating glass pane facing the support device lies during conveying.
  • the wedge-shaped support surfaces of the horizontal conveyor are expediently opposite one another, but this need not necessarily be the case; e.g. they could also be arranged alternately on the front and on the back of the horizontal conveyor.
  • the opening angle of the wedge formed by the contact surfaces the smaller the angle, the greater the free space between the lower edge of the insulating glass pane and the contact surfaces, and accordingly the risk that protruding sealing compound will contaminate the contact surfaces.
  • the smaller the angle the less accurate the altitude the lower edge of the insulating glass pane in the wedge-shaped space between the bearing surfaces.
  • the greater the opening angle of the wedge the more clearly the height of the lower edge of the insulating glass pane is determined and the smaller the distance between the contact surfaces and the sealing compound in the edge joint of the insulating glass pane.
  • the opening angle of the wedge is preferably between 100 ° and 140 °, ideally 120 °.
  • the contact surfaces are preferably not led to the apex of the wedge defined by them, but rather are allowed to end at a mutual distance, the straight one is still sufficient to convey the thinnest of the practically occurring insulating glass panes and provides a recess or gap in the remaining space.
  • a sufficiently cut-resistant material is used for the contact surfaces on which the insulating glass panes stand with their outer edges, preferably a plastic or elastomer material that is not too hard and whose Shore A hardness is between 15 ° and 50 °, preferably between 30 ° and 40 ° and has the highest possible coefficient of friction, so that the insulating glass panes on it can be conveyed gently and without slippage.
  • suitable materials are natural rubber, polyurethane and polyvinyl chloride, in particular a foamed polyurethane with a Shore A hardness of approximately 40 °. These materials are preferably in a layer thickness of not more than 2 mm on a harder support in order to obtain sufficiently dimensionally stable supports for the insulating glass panes.
  • the support surfaces are formed by the surfaces of two synchronously driven endless belts which are arranged in a wedge shape relative to one another according to the invention, then these belts are expediently supported by correspondingly wedge-shaped surfaces of a carrier which extends in the conveying direction and which can be displaced transversely to the conveying direction in order to adapt to insulating glass panes of different thicknesses is.
  • a carrier which extends in the conveying direction and which can be displaced transversely to the conveying direction in order to adapt to insulating glass panes of different thicknesses is.
  • toothed belts in particular those which are made from a cut-resistant plastic or elastomer material with a high coefficient of friction on the front and from a plastic with a low coefficient of friction, for example from a polyamide, on the back.
  • the belts on the supporting surfaces of the carrier cause excessive friction, especially in the case of heavy insulating glass panes, then the belts can instead be supported by two rows of rollers that have their axes correspondingly wedge-shaped on or in one Carriers extending in the conveying direction are mounted.
  • the conveying member preferably carries one-piece supports on which bearing surfaces are attached with both inclinations occurring, the simplest blocks having a wedge-shaped incision.
  • the construction of such a horizontal conveyor is extremely simple.
  • the conveying member is arranged on a carrier extending in the conveying direction, which is mounted on or in at least two spaced-apart guides on the frame of the device, which are inclined at a corresponding angle to the plane of the disk running, namely parallel to the support surface , which is adjacent to the disk running plane.
  • the device shown in Figures 1 and 3 has a frame 1 to which a horizontal conveyor 2 is attached.
  • the horizontal conveyor comprises a carrier 3 extending in the conveying direction 10, on the upper side of which a horizontal one Guide rail 4 is fixed, in which an endless belt 5 runs, which is guided around deflection wheels 6, which are attached to the ends of the carrier 3 and one of which is driven.
  • the driving shaft 7 of the driven deflection wheel is shown.
  • the belt 5 carries supports 8 made of a cut-resistant plastic at regular intervals.
  • the supports are blocks with a wedge-shaped incision 9 extending in the conveying direction 10 in their upper side. Through the incision, two rows of flat, mutually aligned support surfaces 11 and 12 are formed. The vertex in which the contact surfaces 11 and 12 would meet is left out; a recess 13 is provided in its place.
  • the carrier 3 is displaceably mounted on two guide rods 14 which extend at a right angle to the conveying direction 10 and run parallel to the support surface 11, that is to say have the same inclination as this.
  • Two guide bushings 15 are welded into the carrier 3, through which the guide rods 14 extend.
  • an air cushion wall 16 is attached to the frame 1, which is parallel to the Direction of conveyance extends and is inclined to the rear by a few degrees from the vertical.
  • the axes 17 of the deflection wheels run at right angles to the air cushion wall 16, and the same applies correspondingly to the upper side of the guide rail 4.
  • slits 18 directed obliquely upwards, which are separated from a blower (not shown) by a hollow cross member 19 with which the air cushion wall 16 is fastened to the frame 1, air is applied to it, which flows upwards at the front of the air cushion wall and forms an air cushion between the air cushion wall and an insulating glass pane 20 standing on the horizontal conveyor 2.
  • the insulating glass pane 20 consists of two individual glass panes 21 and 22 which are glued to one another via a spacer 23, the circumference of which is somewhat smaller than that of the insulating glass pane, so that an edge joint 24 remains from the outside of the spacer to the edge of the glass panes 21 and 22 , which is filled with a pasty sealant.
  • auxiliary conveyor 25 in the form of a suction conveyor belt between the horizontal conveyor 2 and the air cushion wall 16, which acts on the surface of the insulating glass pane 20 facing the air cushion wall and sucks it up.
  • the auxiliary conveyor 25 is driven synchronously with the horizontal conveyor 2 and is intended to ensure that between the insulating glass pane 20 and the horizontal conveyor 2 no slip occurs.
  • An auxiliary conveyor designed as a suction conveyor is also known in connection with the conveyor known from DE-U-80 27 173 (see DE-U-83 18 401).
  • the auxiliary conveyor shown consists of a hollow beam 26 which extends parallel to the conveying direction 10 and which carries on its front and rear sides a guide rail 27, in which a belt 28 runs, on the front side of which by longitudinal strip-shaped elevations 27 and connecting them webs 30 running downwards are formed in flat, open chambers which can be covered by an insulating glass pane 20.
  • These flat chambers are connected via holes 32 and 33 in the belt 28 or in the beam 26 to the interior thereof and via a suction pipe 31 to the suction side of a blower, as a result of which a vacuum is created in the space between the belt 28 and the insulating glass pane 20.
  • Other suction conveyor belts that can be used for the present purpose are described in DE-A-35 29 892 and in EP-C-0 225 429.
  • a pane running plane 34 is defined, which lies above the bearing surface 11, while the other bearing surface 12 is in front the disc running plane.
  • the plane 35 which halves the opening angle between the wedge-shaped support surfaces 11 and 12, runs parallel to the pane running plane 34 and is always set up at a distance from the pane running plane so that it lies in the middle of the insulating glass pane 20. In this way, the level 36 of its lower edge on the supports 8 is always the same for insulating glass panes of different thicknesses.
  • the adjustment range of the horizontal conveyor 2 for adaptation to insulating glass panes 20 of different thicknesses is shown in dashed lines in FIG.
  • the device shown in FIG. 2 differs from that shown in FIG. 3 only in that, instead of an air cushion wall, a lifting beam 37 is provided instead of an air cushion wall for supporting the insulating glass panes, which has a row of free-running rollers 38 on its front, the axes 39 of which run parallel to the disk running plane 34.
  • the height of the walking beam 37 is adjusted so that the rollers 38 support the insulating glass pane 20 near its upper edge.
  • the adjustment of the walking beam 37 is carried out in a manner known per se using a motor which is controlled by a sensor which measures the height of the insulating glass pane before it runs into the device.
  • the embodiment shown in Figure 4 differs from the embodiment shown in Figure 1 with regard to its horizontal conveyor 2, which in the present case has two supports 3 and 3a which extend in the conveying direction and which are hollow beams which are rectangular in cross section and are arranged inclined in such a way that their upper sides arrange the opening angle for the wedge-shaped ones Determine contact surfaces 11 and 12.
  • endless belts 5 and 5a run on the two supports 3 and 3a, but these do not bear any supports, but rather serve directly as supports for the insulating glass panes 20.
  • the two belts 5 and 5a run synchronously.
  • their driven deflection wheels are provided with gears 40 and 41.
  • Helical gears connected to each other.
  • the two carriers 3 and 3a are rigidly connected by cheeks 42 to guide bushes 15 which, as in the first exemplary embodiment, are displaceable on guide rods 14 and thereby enable the conveyor to be adapted to insulating glass panes 20 of different thicknesses.
  • the two belts 5 and 5a are designed as toothed belts, the front of which forms the contact surfaces 11 and 12 and consists of a cut-resistant material with a high coefficient of friction, in particular a foamed polyurethane elastomer with a Shore A hardness of approximately 40 °, and the like serrated back made of a harder and less frictional plastic, especially a polyamide.
  • a rotating cleaning brush 43 which acts on the supports 8, is attached to the frame 1 under the lower run of the belt 5.
  • the cleaning brush can be immersed in a container with cleaning liquid.
  • a scraper 44 can be provided, which sweeps over the contact surfaces of the passing bearings 8.
  • Cleaning is particularly simple in the case of a device of the type shown in FIG. 5. As shown in FIG. 6, a smooth belt 5 can be cleaned particularly easily by means of a rotating cleaning brush 43 and / or a scraper 44.
  • Devices according to the invention are used in production lines for insulating glass.
EP91916555A 1990-09-19 1991-09-18 Vorrichtung zum fördern von isolierglasscheiben Expired - Lifetime EP0549648B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4029669A DE4029669C1 (xx) 1990-09-19 1990-09-19
DE4029669 1990-09-19
PCT/EP1991/001777 WO1992005333A1 (de) 1990-09-19 1991-09-18 Vorrichtung zum fördern von isolierglasscheiben

Publications (2)

Publication Number Publication Date
EP0549648A1 EP0549648A1 (de) 1993-07-07
EP0549648B1 true EP0549648B1 (de) 1996-06-05

Family

ID=6414541

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91916555A Expired - Lifetime EP0549648B1 (de) 1990-09-19 1991-09-18 Vorrichtung zum fördern von isolierglasscheiben

Country Status (5)

Country Link
US (1) US5332080A (xx)
EP (1) EP0549648B1 (xx)
AT (1) ATE139004T1 (xx)
DE (2) DE4029669C1 (xx)
WO (1) WO1992005333A1 (xx)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0857848A2 (de) * 1997-02-10 1998-08-12 Lenhardt Maschinenbau GmbH Verfahren und Vorrichtung zum Zusammenbauen von Isolierglasscheiben
WO2000053879A1 (de) 1999-03-05 2000-09-14 Lenhardt Maschinenbau Gmbh Vorrichtung zum fördern von isolierglasscheiben
EP2390454A2 (de) 2010-05-28 2011-11-30 Bystronic Lenhardt GmbH Vorrichtung zum Fördern von Isolierglasscheiben

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DE3536846A1 (de) * 1985-10-16 1987-04-16 Karl Lenhardt Vorrichtung zum foerdern von hochkant stehenden glasscheiben
DE3539876A1 (de) * 1985-11-11 1987-05-14 Karl Lenhardt Vorrichtung fuer das schlupffreie foerdern von stueckgut in beliebiger position, insbesondere in geneigter oder im wesentlichen vertikaler stellung
DE3539879A1 (de) * 1985-11-11 1987-05-21 Karl Lenhardt Vorrichtung fuer das schlupffreie foerdern von zwei tafeln, insbesondere von glastafeln
DE8905421U1 (xx) * 1989-04-28 1990-03-29 Lenhardt Maschinenbau Gmbh, 7531 Neuhausen, De

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0857848A2 (de) * 1997-02-10 1998-08-12 Lenhardt Maschinenbau GmbH Verfahren und Vorrichtung zum Zusammenbauen von Isolierglasscheiben
WO2000053879A1 (de) 1999-03-05 2000-09-14 Lenhardt Maschinenbau Gmbh Vorrichtung zum fördern von isolierglasscheiben
DE19909638A1 (de) * 1999-03-05 2000-09-14 Lenhardt Maschinenbau Vorrichtung zum Fördern von Isolierglasscheiben
DE19909638C2 (de) * 1999-03-05 2002-11-07 Lenhardt Maschinenbau Vorrichtung zum Fördern von Isolierglasscheiben
US6609611B1 (en) 1999-03-05 2003-08-26 Lenhardt Maschinenbau Gmbh Device for conveying insulating glass panes
EP2390454A2 (de) 2010-05-28 2011-11-30 Bystronic Lenhardt GmbH Vorrichtung zum Fördern von Isolierglasscheiben
DE102011050710A1 (de) 2010-05-28 2011-12-01 Bystronic Lenhardt Gmbh Vorrichtung zum Fördern von Isolierglasscheiben

Also Published As

Publication number Publication date
US5332080A (en) 1994-07-26
WO1992005333A1 (de) 1992-04-02
EP0549648A1 (de) 1993-07-07
ATE139004T1 (de) 1996-06-15
DE4029669C1 (xx) 1991-07-18
DE59107900D1 (de) 1996-07-11

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