US3669808A - Rolling apparatus for the rolling together of curved glass sheets with interposed plastics sheets to form a laminate - Google Patents

Rolling apparatus for the rolling together of curved glass sheets with interposed plastics sheets to form a laminate Download PDF

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Publication number
US3669808A
US3669808A US56781A US3669808DA US3669808A US 3669808 A US3669808 A US 3669808A US 56781 A US56781 A US 56781A US 3669808D A US3669808D A US 3669808DA US 3669808 A US3669808 A US 3669808A
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United States
Prior art keywords
pressure roller
rolling
sheets
housing
laminate
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Expired - Lifetime
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US56781A
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English (en)
Inventor
Kurt Klotzbach
Johann Herzog
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GLASTEMP OF TOLEDO Inc PERRYBURG OH
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Assigned to GLASTEMP OF TOLEDO INC., PERRYBURG, OH. reassignment GLASTEMP OF TOLEDO INC., PERRYBURG, OH. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: SACK GLASTECHNIK GMBH
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Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B1/00—Layered products having a non-planar shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10807—Making laminated safety glass or glazing; Apparatus therefor
    • B32B17/10816—Making laminated safety glass or glazing; Apparatus therefor by pressing
    • B32B17/10825—Isostatic pressing, i.e. using non rigid pressure-exerting members against rigid parts
    • B32B17/10862—Isostatic pressing, i.e. using non rigid pressure-exerting members against rigid parts using pressing-rolls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions

Definitions

  • Apparatus for rolling together superimposed curved sheets to form a curved laminate comprises a pivoted frame in which are mounted two opposed groups of pressure roller units. Each unit comprises pressure rollers carried on a guide rod slidably and rotatably mounted in a hollow housing which contains a spring biassing the guide rod to one end of the housing.
  • the housings of the pressure roller units are individually adjustable in position on the housing so that the apparatus can be set so that the combined roller gap defined between the opposed groups of pressure rollers, has any desired curvature.
  • the invention relates to a rolling apparatus for rolling together curved superimposed sheets to form a curved laminate, for example for rolling together spherically curved glass sheets with interposed plastics sheets to form a curved piece of safety glass, said apparatus being of the kind provided with a pivoting frame, adapted to pivot around an axis which extends substantially perpendicularly to the rolling direction said frame having disposed therein a plurality of pressure rollers, thrust against each other by springs and adapted to act upon the upper and lower sheets of the laminate being formed.
  • the pressure rollers acting from above on the surface of the upper glass sheet are disposed on rods which are longitudinally slidably supported in the pivoting frame and are prestressed in the direction towards the roll gap by means of two tension springs each.
  • the pressure rollers which hear from below against the surface of the lower glass sheet are disposed on pivoting levers which are hinged on the pivoting frame.
  • the pivoting levers are also prestressed by means of freely exposed tension springs in the direction towards the surface of the lower glass sheet.
  • the inventors propose to provide a rolling apparatus of the kind mentioned heretofore in which laminates of various different curvatures can be rolled without the need for exchanging the pivoting frame.
  • the problem is solved by combining each pressure roller together with the components supporting same and the associated spring to form a pressure roller unit adapted for mounting on the pivoting frame independently of the other pressure roller units and being removable therefrom individually and that the pressure roller units are mounted on the pivoting frame so as to be adjustable transversely to the rolling direction for different curvatures of the laminate to be rolled.
  • This procedure not only extends the field of application of the rolling apparatus to the processing of sheets of different curvatures but maintenance and repair can thus be rendered more simple and rapid since it is possible for complete pressure roller units to be kept in stock for rapid exchanging with any damaged pressure roller unit in the event of defects.
  • the pivoting frame comprises two bar members, disposed substantially vertically and adapted to support the pivoting pins of the pivoting frame, and two pairs of horizontally extending cross members each said pair being adapted to join the bar members above the upper and below the lower sheets of the laminate respectively, the pressure roller units with the pressure rollers acting on the upper sheet being mounted on the upper cross member and the pressure roller units with the pressure rollers acting upon the lower sheet being mounted on the lower cross member.
  • the mounting of each pressure unit on two cross members offers the advantage that the units reliably retain their preset position during the rolling operation even if high thrust forces occur, so that flexure of the cross members is kept to very small amounts.
  • each bar member of the pivoting frame comprises three detachably joined bar parts, the cross members joining the bar mem bers connecting corresponding outer parts of the two bar members while the middle part of each bar member supports one of the pivoting pins of the pivoting frame.
  • This construction permits the exchange of a complete pivoting frame by lifting the frame from the stand, and also permits parts of the pivoting frame to be removed, the pivoting pins remaining in the bearings of the stand.
  • Alignment of the bar parts in the rolling direction can be ensured in simple manner if the abutment endplates of two adjacent bar parts always have the same length in the rolling direction, the endplates being mounted on the bar parts so that adjacent bar parts are in alignment if abutting endplate edges, defining the endplates in the rolling direction, are in alignment.
  • the pressure roller units have an elongated housing in which a guide rod one end of which supports the pressure roller, is supported so as to he slidable along its longitudinal axis andto be rotatable about said axis.
  • a compression spring is disposed in the housing, one end of said compression spring bearing upon the housing and the other end acting on the guide rod, to prestress the said guide rod in the direction of the pressure roller.
  • the guide rod for supporting the pressure roller extends through the housing of the pressure roller unit so that its two ends extend from the housing and the compression spring on the housing end disposed opposite to the pressure roller bears upon a stop which is adjustable along the longitudinal axis of the housing.
  • the stop may be formed by a closure, screw mounted in the housing and through which closure the free end of the guide rod extends. In this way. it is possible for the prestress of the spring to be adjusted to a desired amount prior to assembly in the pivoting frame.
  • each pressure roller unit is provided with two extensions having abutment surfaces for bearing upon the cross members of the pivoting frame, grooves of T-cross section being provided in the extensions and at least one block of T-shaped cross section, detachably mounted on the associated cross member being adapted to engage into each of the aforementioned slots.
  • the T-shaped-block be mounted on the cross member by at least one but preferably two screws traversing apertures in the cross member. This construction enables each pressure roller unit-after slackening the screws which.
  • a further feature provides that at least part of the ports provided in the cross members for mounting the blocks, are shaped in the form of substantially horizontally extending slots.
  • the feed of the laminate through the roll gap is prm vided by driven feed rollers which, in the preferred embodiment of the invention, are combined with components for retaining them on the pivoting frame to form feed roller units which can be exchanged for the pressure roller units.
  • the aforementioned feed roller units may be mounted on the cross members of the pivoting frame in the same manner as the pressure roller units by means of T-shaped blocks. which engage into slots whose cross section is of T-shape. Accordingly, the feed roller units in the same way as the pressure roller unit can be simply and rapidly adjusted to sheets of different sheet curvature and can be equally readily installed and removed, and are readily exchangeable for pressure roller units.
  • each pressure roller unit to be so constructed that the extension of the longitudinal centre axis of the guide rod is disposed in front of the axis of rotation of the associated pressure roller as seen in the rolling direction so that during the rolling of a laminate the pressure roller adjusts itself in self-aligning manner around the longitudinal centre axis of the guide rod in the rolling direction.
  • FIG. 1 is a front view of a rolling apparatus according to the invevntion for the rolling together of glass sheets with interposed plastics sheets to form laminate safety glass;
  • FIG. 2 is a section along the line 2-2 of FIG. 1;
  • FIG. 3 is a partial section showing the method of mounting the pressure roller unit on one of the cross members of the pivoting frame
  • RIG. 4 is a section along the line 4-4 of FIG. 3;
  • FIG. 5 is a partial view seen in the direction of the arrow 5 of FIG. 3, and
  • FIG. 6 is a side view of two pressure rollers cooperating during the process of rolling the laminate.
  • a rolling apparatus for rolling together glass sheets with interposed plastics sheets to form a laminate comprises a stand 10 in which a frame 11 is mounted for pivoting about a horizontal axis.
  • the frame 11 comprises two bar members, joined by cross members 12, .13, 14 and 15.
  • Each bar member comprises three detachably joined bar parts ⁇ 16, 17 and 18.
  • the cross members 12, 13, and 14, 15, constructed of open sections, are mounted on the bar parts 16 or '18 respectively, for example by welding or by means of screws.
  • the bar parts 16, 17 and 18 comprise hollow sections, for example rectangular tubes, whose abutting ends are provided with welded endplates 19 and 20.
  • the endplates of the outer bar parts 16 and 18 are each provided with a longitudinal groove, extending in the rolling direction and into which a tongue on one of the endplates 20 of the middle bar part 17 is adapted to engage.
  • Each pair of endplates 19 and 20 is held together by means of four screw bolts 21.
  • the pivoting frame 11 is supported in the stand 10 on short pivoting pins 22 which are disposed on the middle bar parts 17.
  • An upper group and a lower group of pressure roller units 23 and 24 respectively, opposing ends of which support upper and lower pressure rollers 25 and 26 respectively, are disposed in the pivoting frame.
  • Each of the upper and lower pressure roller units comprises a pair of pressure rollers 25 or 26 respectively which are supported in a thrust bracket 27 or 28 respectively which are thrust towards a corresponding pair of pressure rollers of the other group by a compression spring 29.
  • Each compression spring 29 is disposed in a separate spring housing 30 and one end of said spring bears on a housing closure 31 while the other end acts on an abutment on a guide rod 3'2, extending through the housing and being guided therein for movement along its longitudinal axis and for rotation about said axis.
  • the thrust bracket 27 or 28 respectively of the thrust rollers 25 or 2-6 respectively is mounted on the inward facing ends of the guide rod 32.
  • the other pressure roller. units 23 and the lower pressure roller units 24 are mounted on the cross members 12, 13, or 14, 15 respectively so as to be adjustable along their longitudinal axes.
  • FIGS. 3 and 4 The longitudinally adjustable manner of mounting a pressure roller unit 23 on the cross member 12 is illustrated in FIGS. 3 and 4.
  • the pressure roller units 23 are joined to the cross member 13 and the pressure roller units 24 are joined to the cross members 14. and 15 in identical manner.
  • the substantially cylindrical spring housings 30 are provided at their ends with two projections 33 having abutment surfaces 34.
  • One groove or slot 35 of T-shaped cross section and extending longitudinally is milled into each of the projections 33.
  • a block 36 also of T-shaped cross section and adapted for screw mounting through the open end of the groove 35 to the cross member 12 engages in the aforementioned groove or slot.
  • the cross member 12 is provided with apertures 38 through which two Allen screws 37 may be screwed to engage in tapped holes of the groove block 36.
  • the pressure roller units 25 and 26 In order to enable the pressure rollers 25 and 26 to be adjusted to laminates V, which are curved transversely to the rolling direction, it is necessary for the pressure roller units to be not only longitudinally displaceable but they must also be mounted inthe pivoting frame so as to be displaceable or pivotable in the direction towards the cross member.
  • the apertures 38 are constructed as elongated slots as disclosed by (FIG. 5. When the screws 37 are slackened it is possible for a pressure roller unit 23 or 24 to be displaced not only in the direction of the T-shaped groove or slot 35 but also in the direction of the slots 38.
  • FIG. 1 shows in exemplified form two lower pressure rollers units 24 replaced by feed roller units 40.
  • the feed roller units are mounted in the same way as the pressure roller units by T-shaped slots and blocks in slots of the cross members 14 and 15. This ensures that the feed rollers may also 'be accurately adjusted to the cross sectional shape of a laminate V which is to be rolled together.
  • the feed rollers are driven by an electric motor 41 which is mounted outside the frame on one of the pivoting pins 22 and whose drive shaft extends through the pivoting pin, which is made hollow for this purpose, into the interior of the pivoting frame.
  • the rotary motion of the drive shaft of the electric motor is transmitted by a chain transmission 42 to a universal shaft 43 which drives chain sprockets disposed in the zone of the feed roller units 40.
  • Said chain sprockets form part of the chain transmission 44 connected to the feed rollers 39.
  • FIG. 6 shows to an enlarged scale an upper and lower pressure roller pair 25 or 26 respectively supported in thrust brackets 27 and 28.
  • Each thrust bracket 27 and 28 comprises of an inner bearing bracket engaging between the rollers of the roller pairs 25 or 26 respectively and an outer bracket or larger width, additionally supporting the inner bracket and being fixedly joined thereto. It can be clearly seen that the longitudinal central axes of the guide rods 32', on which the thrust brackets 27 or 28 respectively are disposed, are displaced in front of the axes of rotation of the respective pressure rollers 25 or 26 by an amount R in the rolling direction. By virtue of the castor action afforded by this feature the pressure rollers automatically adjust themselves in the rolling direction during the rolling operation.
  • Rolling apparatus for rolling together curved superimposed sheets to form a curved laminate
  • said frame comprises two bar members extending perpendicular to said pivotal axis and means pivotally mounting said bar members for pivoting about said axis, said frame further comprising cross bar means connecting said bar members on opposite sides of said axis, said mounting means mounting one of said groups of pressure roller units on the cross bar means on one side of said axis and mounting the other of said groups of pressure roller units on the cross bar means on the other side of said axis.
  • each of said two bar members comprises three parts detachably joined end to end, a central part of each said bar member bearing said pivot means and said cross members being connected between respective each parts of said bar members.
  • each said pressure roller unit said support means comprises an elongated housing and said guide means comprises a guide rod one end of which extends from the housing and supports the pressure roller means said guide rod being slidable longitudinally in said housing and being rotatable in said housing about its longitudinal axis, a helical compression spring being disposed within said housing around said rod, one end of said spring bearing on one end of said housing and the other end of said spring bearing on abutment means on said guide rod.
  • each said pressure roller unit the end of said guide rod remote from said roller means also extends from said housing, and said housing includes a housing body and stop means at the end of the housing body remote from said pressure roller means, said spring hearing at one end on an abutment on said guide rod intermediate the ends thereof and at the other end on said stop means, said stop means being adjustable longitudinally of the housing body.
  • stop means is a sleeve screw threaded into one end of said housing body and through which said guide rod passes slidably, said sleeve forming a closure for said housing.
  • cross member means on each side of said axis comprises a pair of cross beams extending parallel with said axis and spaced at different distances therefrom, and each pressure roller unit is provided with two projections each having an abutment surface to bear on one of said beams and each having a slot of T-shaped cross section, said mounting means including at least one block of T-shaped cross section engaged in each said slot and means detachably securing said blocks to the associated said cross beams.
  • each said cross member is provided with a plurality of apertures and said means detachably securing said T-shaped blocks to the associated cross beams comprises, for each of said T-shaped blocks, two screws engaging the block and each passing through a dilferent one of said apertures in the associated cross beam.
  • the apparatus of claim 13 including feed roller units each comprising feed roller means and feed roller support means, the apparatus further including drive means for driving the feed roller means and mounting means mounting said feed roller units in said frame, said mounting means comprising individual mounting means for each feed roller unit adapted to permit individual removal of each feed roller unit and individual adjustment of the position of each said feed roller support means in a plane perpendicular to the rolling direction.
  • feed roller support means are each provided with T-section slots and said mounting means for each feed roller support member comprises -T-section bars fitting in said slots and means for detachably securing said bars to said frame.
  • each said pressure roller unit the longitudinal axis of said guide rod is displaced in front of the axis of rotation of said pressure roller means in the rolling direction whereby when said laminate is passed between said groups of 15 pressure roller means the pressure roller means adjusts itself in a self-aligning manner around the longitudinal axis of the guide rod.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Laminated Bodies (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
US56781A 1969-07-22 1970-07-21 Rolling apparatus for the rolling together of curved glass sheets with interposed plastics sheets to form a laminate Expired - Lifetime US3669808A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE6929022U DE6929022U (de) 1969-07-22 1969-07-22 Walzvorrichtung zum zusammenwalzen von vorzugsweise sphaerisch gebogenen glasscheiben mit dazwischenliegenden kunststoffolien zu einem vorverbund

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US3669808A true US3669808A (en) 1972-06-13

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US56781A Expired - Lifetime US3669808A (en) 1969-07-22 1970-07-21 Rolling apparatus for the rolling together of curved glass sheets with interposed plastics sheets to form a laminate

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US (1) US3669808A (enrdf_load_stackoverflow)
BE (1) BE753817A (enrdf_load_stackoverflow)
DE (1) DE6929022U (enrdf_load_stackoverflow)
FR (1) FR2053104B1 (enrdf_load_stackoverflow)
GB (1) GB1309668A (enrdf_load_stackoverflow)
SE (1) SE364902B (enrdf_load_stackoverflow)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5239860U (enrdf_load_stackoverflow) * 1975-09-13 1977-03-22
US4327634A (en) * 1979-02-21 1982-05-04 Saint-Gobain Vitrage Apparatus for assembling sheets of glass and/or plastic materials
US4788911A (en) * 1986-01-07 1988-12-06 Libbey-Owens-Ford Co. Prepress apparatus for an assembly of stacked sheets
US4865671A (en) * 1986-01-07 1989-09-12 Libbey-Owens-Ford Co. Prepress apparatus and method
US4988398A (en) * 1989-12-26 1991-01-29 Ppg Industries, Inc. Laminate prepress roll assembly
US5080751A (en) * 1989-08-02 1992-01-14 Dewan Sewing Inc. Rotary heat sealer
US5085141A (en) * 1988-11-14 1992-02-04 Saint-Gobain Vitrage International Device for the drive of driving rollers of a calender for laminated glazings and calender equipped with this device
US5109765A (en) * 1988-07-12 1992-05-05 Saint-Gobain Vitrage Device for assembling laminated glazings
US5136935A (en) * 1990-03-08 1992-08-11 Saint-Gobain Vitrage International Device for assembly of laminated glazings by pressing rollers supported by joint systems
US5154117A (en) * 1990-01-16 1992-10-13 Saint-Gobain Vitrage International Device for the assembly of laminated glazing by pressing
USRE34567E (en) * 1985-01-19 1994-03-22 Saint-Gobain Vitrage Device for joining by calendering at least one sheet of glass and at least one film of plastic material

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU585419B2 (en) * 1986-01-07 1989-06-15 Libbey-Owens-Ford Co. Prepress apparatus and method
JP2930147B2 (ja) * 1991-06-24 1999-08-03 日本板硝子株式会社 プレスロール装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE557855A (enrdf_load_stackoverflow) * 1956-08-03

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5239860U (enrdf_load_stackoverflow) * 1975-09-13 1977-03-22
US4327634A (en) * 1979-02-21 1982-05-04 Saint-Gobain Vitrage Apparatus for assembling sheets of glass and/or plastic materials
USRE34567E (en) * 1985-01-19 1994-03-22 Saint-Gobain Vitrage Device for joining by calendering at least one sheet of glass and at least one film of plastic material
US4788911A (en) * 1986-01-07 1988-12-06 Libbey-Owens-Ford Co. Prepress apparatus for an assembly of stacked sheets
US4865671A (en) * 1986-01-07 1989-09-12 Libbey-Owens-Ford Co. Prepress apparatus and method
US5109765A (en) * 1988-07-12 1992-05-05 Saint-Gobain Vitrage Device for assembling laminated glazings
US5085141A (en) * 1988-11-14 1992-02-04 Saint-Gobain Vitrage International Device for the drive of driving rollers of a calender for laminated glazings and calender equipped with this device
US5080751A (en) * 1989-08-02 1992-01-14 Dewan Sewing Inc. Rotary heat sealer
US4988398A (en) * 1989-12-26 1991-01-29 Ppg Industries, Inc. Laminate prepress roll assembly
FR2656252A1 (fr) * 1989-12-26 1991-06-28 Ppg Industries Inc Appareil et procede pour presser ensemble des feuilles superposees pour former un produit feuillete tel un pare-brise.
US5154117A (en) * 1990-01-16 1992-10-13 Saint-Gobain Vitrage International Device for the assembly of laminated glazing by pressing
US5136935A (en) * 1990-03-08 1992-08-11 Saint-Gobain Vitrage International Device for assembly of laminated glazings by pressing rollers supported by joint systems

Also Published As

Publication number Publication date
SE364902B (enrdf_load_stackoverflow) 1974-03-11
BE753817A (fr) 1971-01-25
GB1309668A (en) 1973-03-14
FR2053104A1 (enrdf_load_stackoverflow) 1971-04-16
FR2053104B1 (enrdf_load_stackoverflow) 1975-06-06
DE6929022U (de) 1969-11-13

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AS Assignment

Owner name: GLASTEMP OF TOLEDO INC., PERRYBURG, OH.

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:SACK GLASTECHNIK GMBH;REEL/FRAME:004467/0130

Effective date: 19850815