EP0294290B1 - Procédé relatif aux enrouleuses à compression - Google Patents

Procédé relatif aux enrouleuses à compression Download PDF

Info

Publication number
EP0294290B1
EP0294290B1 EP88401336A EP88401336A EP0294290B1 EP 0294290 B1 EP0294290 B1 EP 0294290B1 EP 88401336 A EP88401336 A EP 88401336A EP 88401336 A EP88401336 A EP 88401336A EP 0294290 B1 EP0294290 B1 EP 0294290B1
Authority
EP
European Patent Office
Prior art keywords
speed
strip
phase
felt
roll
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
EP88401336A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0294290A3 (en
EP0294290A2 (fr
Inventor
Yves Audren
Guy Tuffal
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.)
Saint Gobain Isover SA France
Original Assignee
Saint Gobain Isover SA France
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 Saint Gobain Isover SA France filed Critical Saint Gobain Isover SA France
Priority to AT88401336T priority Critical patent/ATE68159T1/de
Publication of EP0294290A2 publication Critical patent/EP0294290A2/fr
Publication of EP0294290A3 publication Critical patent/EP0294290A3/fr
Application granted granted Critical
Publication of EP0294290B1 publication Critical patent/EP0294290B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/18—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web
    • B65H23/195—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in winding mechanisms or in connection with winding operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H18/00—Winding webs
    • B65H18/08—Web-winding mechanisms
    • B65H18/26—Mechanisms for controlling contact pressure on winding-web package, e.g. for regulating the quantity of air between web layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B63/00—Auxiliary devices, not otherwise provided for, for operating on articles or materials to be packaged
    • B65B63/02—Auxiliary devices, not otherwise provided for, for operating on articles or materials to be packaged for compressing or compacting articles or materials prior to wrapping or insertion in containers or receptacles
    • B65B63/024—Auxiliary devices, not otherwise provided for, for operating on articles or materials to be packaged for compressing or compacting articles or materials prior to wrapping or insertion in containers or receptacles for compressing by winding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/17—Nature of material
    • B65H2701/177—Fibrous or compressible material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/18—Form of handled article or web
    • B65H2701/184—Wound packages
    • B65H2701/1846—Parts concerned
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/19—Specific article or web
    • B65H2701/1922—Specific article or web for covering surfaces such as carpets, roads, roofs or walls
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S242/00—Winding, tensioning, or guiding
    • Y10S242/03—Coreless coilers

Definitions

  • the subject of the invention is an improvement to the processes for forming rolls from strips of compressible materials, in particular strips of felts based on mineral fibers intended for thermal and / or phonic insulation of buildings.
  • the strips of felt made up of mineral fibers - in particular glass fibers - associated with a resin most often formo-phenolic, are used in a common way for the insulation of roof spaces, walls or floors.
  • the thermal resistance of a material being proportional to its thickness, modern requirements lead to the marketing of increasingly thick products, from 7 to 16 cm or even 25 cm thick. Since, on the other hand, glass fibers with very low thermal conductivity have been recently developed which are particularly fine, it is necessary to condition felt strips of low density and increasingly thick.
  • the packaging consists in the winding under compression of the felt strip in order to form a cylindrical roll whose subsequent unwinding is prevented by means of a paper or plastic envelope.
  • a device for implementing this method is for example described in the French patent document FR 2553744 or US-A-3991538.
  • the winding takes place in a space delimited by three organs: the feed conveyor, a vertical conveyor or roller whose contact surface with the felt forms with the feed conveyor an angle of the order of 40-80 ° preferably close to 60 ° and a steamroller progressively moved apart in order to increase as the winding progresses, the space available for the roller, and animated by a rotation movement in the direction contrary to the direction of advance of the vertical conveyor.
  • the winding is more uniform over the length of the strip if the compression exerted by the felt does not result from a passive action, but on the contrary the movement of the compression roller is controlled according to a predetermined program so as to impose on each turn of wound felt a given thickness - preferably constant or decreasing slightly as the winding.
  • the parameters retained for the program are preferably the length of the wound strip and its initial thickness.
  • This coating preferably consists of a first layer of molybdenum deposited by schooping on which is also deposited by schooping, a second layer consisting of grains for example of corundum whose thickness does not exceed one millimeter.
  • the contact surface with the felt preferably has regularly arranged sculptures, 2 to 10 mm deep and not more than 20 mm apart.
  • a compression roller thus produced has a longevity of more than 500 hours - compared to the 150 hours of operation generally obtained with rubber coatings.
  • the wear is therefore much lower and the variations in the surface condition of the roller over time are much better controlled, so that it is possible to at least partially compensate for this by modifying the speed of the compression roller by relative to the speeds of the two conveyors, or in practice by accelerating the compression roller as proposed in FR-A-2553744.
  • the inventors have shown that the quality of the winding does not meet strict quality criteria even when the roughness of the compression roller is perfectly constant and that the compression is regulated in accordance with the teaching of the patent.
  • FR-A-2553744 cited above. It was observed first of all that when high compression rates are applied to the product - while of course being limited to acceptable rates taking into account the compressibility of the mineral fiber felt and its elasticity - the felt initiation is more or less damaged, the compression roller delimiting the felt or peeling off the kraft paper covering intended to serve as a vapor barrier. To remedy this, it is necessary to reduce the compression ratio, and part of the advantages linked to the exceptional quality of the fibers are thus lost in terms of the process.
  • the present invention relates to an improvement which does not have the aforementioned drawbacks, to the processes for forming rolls from strips of compressible materials such as in particular glass wool strips.
  • the strip of material is brought continuously into a space delimited by three organs animated by a movement causing the strip to roll up on itself, successively in contact with each of the organs, the first organ in contact with the belt being a feed conveyor (2) and the third of these organs being a compression roller moved in rotation and further moved according to a predetermined program in order to gradually increase the space available for the roller being formed, and the speed of rotation of said compression roller is a function of a predetermined program using as parameters the length of the strip already wound and the speed of the conveyor for feeding the strip (first member in contact with it) so that the speed curve of the compression roller obeys a function in staircases of the winding time, the speed of the compression roller is chosen to be lower than the speed of the supply conveyor during the phase of constitution of the core of the roller, then greater than said speed of the supply conveyor during the phase of
  • the rolled up strip constituting the core of the roll preferably does not exceed 30% of the total length of the rolled up strip.
  • the smoothing period preferably comes after the complete winding of the strip and corresponds to the placement of the protective envelope made of paper or plastic. This smoothing ensures a better conformation of the rollers and moreover allows the part of the pre-glued envelope to be properly applied.
  • FIG 1 is a schematic view of a winder according to the teaching of French patent publication 2553774.
  • the strip of mineral fibers preferably glass wool
  • the fibers are impregnated with a thermosetting binder preferably before being collected by a vacuum conveyor which transfers the strip thus formed to a polymerization oven. On leaving the oven, the edges of the strips are cut and the strip is cut into sections of lengths and widths chosen according to the destination of the product.
  • a sheet of kraft or aluminized paper is glued to one side of the glass wool strip in order to form a barrier opposing the passage of water vapor.
  • the mode of manufacture of the fibers is in itself indifferent for the invention, it should all the same be noted that the light felts - whose density does not exceed 30 kg / m3 - are generally produced with very large pulls for example 160 tonnes per day of fiber. With such pulls, the speeds of the reel conveyors must be of the order of 100 meters per minute, sometimes reaching more than 120 meters per minute. This means that the winding of the glass wool strip and the packaging of the roll in a protective envelope must be carried out at the same rates, rates which quickly highlight all the defects of the process. It goes without saying that it is possible to use several rewinders, but the maintenance and labor costs are therefore multiplied.
  • the glass wool felt 1 is transferred to the supply conveyor 2 of the winder, preferably an endless belt driven by a motor 3 which transmits its power to the drum 4 by means of a transmission belt 5.
  • the felt is thus conveyed in the direction of the arrow to a delimited space 6.
  • the conveyor 2 is equipped with a vacuum box not shown here which prevents the felt from sliding.
  • the felt then comes into contact with a second conveyor 7, forming with the supply conveyor 2, an angle between 40 and 80 ° and preferably of the order of 60 °.
  • the movement of the conveyor 7 is also controlled by the motor 3 by means of a deformable transmission belt, shown below.
  • the conveyor 7 can be retracted in the direction of the arrow "f", by rotation of its support arm 8 around the axis 9 by means of a jack 10 supported by the upper part of the chassis 11 of the reel so as to free the roller from space 6 after its packaging in a protective envelope, the roller then falling on the inclined plane 12 before being taken up by other conveyors for palletizing operations.
  • the frame 11 also supports two arms 13 framing the support arm 8 and between the ends of which are fixed two rollers 14 and 15, driven in rotation in opposite directions from each other, the roller 15 - called compression roller s' opposes the advancement of the felt 1 which it thus constrains to wind.
  • the arm 13, extended by counterweights 16, is moved by means of the arm 17 of a jack articulated on the support 19.
  • the axis 20 of the arm 13 has an initial height adjusted by a motor screw 21.
  • the vertical conveyor 7 can be replaced by a large diameter roller, although this is not preferred since the contact area with the felt strip is then reduced.
  • the actuator 17 controlling the movement of the compression roller 15 obeys a predetermined program which uses as a parameter in particular the length of strip of felt already wound up, length identified at each instant by a sensor 24.
  • Other sensors not shown here, measure the position of the compression roller and the speed of the supply conveyor 2.
  • the compression roller 15 has its contact surface with the felt covered with an inorganic abrasion resistant coating, forming roughness and preferably consisting of corundum grains deposited by schooping on a molybdenum support.
  • the contact surface with the felt is constituted by a series of bars screwed onto the roller and coated as indicated above.
  • Such a compression roller adheres well to the felt, even coated with a vapor barrier, and moreover degrades only very slowly.
  • Diagram 2.1 represents during the conditioning time of a felt roll the speed of the compression roller (line 25) and that of the vertical conveyor (dotted line 26).
  • the ordinate values correspond to percentages of the speed of the supply conveyor; speed which as indicated above is measured at all times and serves as a reference.
  • Figure 2.2 shows an exploded view of the device in the winding area at the very start of it.
  • the felt 1 progresses towards the zone 6 here reduced to its smallest dimension, the counter-roller 15 having not yet started to move apart.
  • the felt 1 first collides with the roller 14 which forces the felt towards the winding zone and compresses it strongly.
  • the felt thanks to its resilience instantly regains part of its volume but is immediately taken up by the compression roller 15.
  • the surface layers of the felt tend to disintegrate, which is particularly damaging when the felt is provided with a vapor barrier coating. Note, however, that the compression action exerted by the roller 15 makes it possible to attenuate to a large extent this harmful effect.
  • the speed (curve 29) of the vertical conveyor 7 is kept constant and is 5% higher than the speed of the conveyor d 'lead 2 always taken as a reference value.
  • the speed of the compression roller 15 (curve 30) is modulated as a function of the progress of the winding and of the speed of the reference conveyor.
  • the modulation is in three stages. From time 0 to time t1, the speed V1 of the compression roller is kept slightly lower than the speed V2 of the supply conveyor 2. Good results are obtained with a speed V1 equal to approximately 95% of V2 during this first phase. As a result, the adhesion of the compression roller on the product is slightly lower even for very high compression rates; thus, we avoid deburring the front edge of the felt and possibly creasing the vapor barrier. The product is thus braked by the compression roller and it has the necessary time to roll on itself. Thus, during this priming phase, the core of the roller is formed, around which the following turns will be wound. During this initial phase, from 5% to 30% of the length of the wound strip.
  • the speed V1 of the compression roller is appreciably increased and fixed between 105 and 110% of the speed V d'am of the supply conveyor.
  • This speed variation can be obtained by associating with the reciprocating motor actuating the compression roller a frequency variator and an analog card controlling it.
  • This alternating motor can be replaced by a DC motor with constant torque, the response time of which is advantageously faster.
  • This second phase at faster speed ends at time t3, when the entire strip is wound. As the core of the roll was perfectly formed in the first phase, strong compression of the turns is then possible without risk of malformation of the felt roll.
  • this greater speed of the compression roller makes it possible to compensate for any slippage of the strip on the supply conveyor 2, slippage which could otherwise lead to the formation of folds.
  • the strip 1 is completely wound up and the packaging of the roll is then carried out in a plastic envelope.
  • the speed V1 of the compression roller is again reduced to around 95% of the speed V2 of the supply conveyor; therefore, the speed of rotation of the envelope is slowed down and the latter is stretched so that good smoothing of the felt roll is ensured.
  • This also makes it possible to reduce the deformation of the rollers in the case of products of great thickness for which it is difficult to properly flatten the last turn.
  • This final smoothing phase from time t2 to time t3 preferably flows for a period corresponding to at least three complete rotations of the felt roll. This slowdown creates a significant difference between the speed of rotation of the felt roller and the speed of the compression roller, which promotes the evacuation of the felt roller by the inclined plane 12 as soon as the conveyor 7 is retracted.
  • the roll obtained is constituted by uniform turns, wound around generators of concentric cylinders.
  • the thickness recovery should in no case be less than 105% of the nominal thickness and on the other hand, the rollers are much more uniform which simplifies the constitution of transport and storage burdens and handling by robots for example.
  • the speed of the compression roller is very strongly increased and passes to approximately 115% of the speed of the supply conveyor, the adhesion of the compression roller is then extremely strong and the roller being formed has an almost triangular shape, a shape which is further accentuated in the smoothing phase if the speed of the compression roller is again considerably reduced (90% of V2).
  • the speed of rotation of the compression roller obeys a program in three stages: initial phase, winding phase, terminal smoothing phase.
  • initial phase initial phase
  • winding phase terminal smoothing phase.
  • This is a simplified type of control of the speed of the compression roller but which already makes it possible to obtain a significant improvement in the quality of the winding.
  • the applicant however prefers to operate in a slightly more complex manner, following the speed law shown diagrammatically in FIG. 5, with a minimum of 4 steps.
  • the speed of the compression roller is preferably equal to 95% of the speed of the supply conveyor. As in the case illustrated in FIG. 3, this speed is maintained for the time necessary for the constitution of a core of the perfectly formed roller on which the following turns can be wound. For the strips of so-called short felts (4 to 7 meters), approximately 30% of the length of the strip is wound at this initial speed. For longer strips, the core is preferably formed by about the first two meters of the strip. The front edge of the felt strip does not undergo disintegration and any tearing or creasing of the vapor barrier is avoided.
  • the speed of the compression roller is chosen to be equal to or slightly higher (105%) than the speed of the supply conveyor, which allows a gradual increase in speed, a sudden acceleration that can be damaging to the felt. About 20% of the length of the strip is thus wound.
  • This winding phase continues from time T2 to T3 until complete winding of the strip, operating with a high speed of the compression roller, between 105 and 110% of the speed of the supply conveyor. If a variable speed drive is available which allows it, the transition from the initial speed to this high speed by winding can be carried out not in a single stage (T1 to T2) but in a succession of stages, or even even continuously.
  • these speed laws must be carried out for each type of product by specialized personnel. It is therefore advantageous to combine means of storage and automatic reminders of the different speed laws established.
  • these laws may advantageously take account of a wear factor of the compression roller whose speed will be systematically reduced if its roughness is too sharp, which is the case with a new badly deburred roller and on the contrary increased when the coating of the roller becomes less adherent due to wear.

Landscapes

  • Mechanical Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Winding Of Webs (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Railway Tracks (AREA)
  • Steroid Compounds (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Rolling Contact Bearings (AREA)
  • Windings For Motors And Generators (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
  • Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
  • Laminated Bodies (AREA)
  • Paints Or Removers (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Winding, Rewinding, Material Storage Devices (AREA)
  • Confectionery (AREA)
  • Advancing Webs (AREA)
  • Press Drives And Press Lines (AREA)
  • Basic Packing Technique (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)
EP88401336A 1987-06-03 1988-06-02 Procédé relatif aux enrouleuses à compression Expired - Lifetime EP0294290B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88401336T ATE68159T1 (de) 1987-06-03 1988-06-02 Verfahren zum zusammendrueckenden aufwickeln.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8707731A FR2616137B1 (fr) 1987-06-03 1987-06-03 Perfectionnements aux enrouleuses a compression de bandes de materiaux compressibles
FR8707731 1987-06-03

Publications (3)

Publication Number Publication Date
EP0294290A2 EP0294290A2 (fr) 1988-12-07
EP0294290A3 EP0294290A3 (en) 1989-01-04
EP0294290B1 true EP0294290B1 (fr) 1991-10-09

Family

ID=9351689

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88401336A Expired - Lifetime EP0294290B1 (fr) 1987-06-03 1988-06-02 Procédé relatif aux enrouleuses à compression

Country Status (16)

Country Link
US (1) US4928898A (fi)
EP (1) EP0294290B1 (fi)
JP (1) JP2608582B2 (fi)
KR (1) KR0135611B1 (fi)
AT (1) ATE68159T1 (fi)
AU (1) AU611888B2 (fi)
BR (1) BR8802656A (fi)
CA (1) CA1319602C (fi)
DE (1) DE3865361D1 (fi)
DK (1) DK167528B1 (fi)
ES (1) ES2028322T3 (fi)
FI (1) FI85839C (fi)
FR (1) FR2616137B1 (fi)
GR (1) GR3003424T3 (fi)
NO (1) NO166223C (fi)
ZA (1) ZA883471B (fi)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2580054B2 (ja) * 1990-01-25 1997-02-12 日産自動車株式会社 空気流量計測装置
FR2685904A1 (fr) * 1992-01-07 1993-07-09 Saint Gobain Isover Rouleau de matelas fibreux comprime, methode et dispositif pour l'obtenir.
US5305963A (en) * 1992-12-03 1994-04-26 Schuller International, Inc. Method and apparatus for forming rolls from strips of compressible material
FI100049B (fi) * 1995-06-14 1997-09-15 Espe Oy Menetelmä ja laitteisto avosolumuovin pakkaamiseksi
DE19904167C1 (de) * 1999-02-03 2000-10-26 Rockwool Mineralwolle Verfahren und Vorrichtung zur Herstellung einer Dämmstoffbahn
US7100862B2 (en) * 2003-09-03 2006-09-05 Ottawa Fibre, Inc. Roll-up machine and method
US7803729B2 (en) 2003-10-06 2010-09-28 Saint-Gobain Isover Insulating element from mineral fibers for shipbuilding
PL1678386T5 (pl) * 2003-10-06 2021-08-16 Saint-Gobain Isover Element izolacyjny z filcu z włókien mineralnych do zaciskowego montażu pomiędzy belkami
ES2553454T3 (es) * 2003-10-06 2015-12-09 Saint-Gobain Isover Puerta cortafuego y pieza intercalada cortafuego para la misma
DE10349170A1 (de) * 2003-10-22 2005-05-19 Saint-Gobain Isover G+H Ag Dampfbremse mit einer Abschirmung gegen elektromagnetische Felder
EP1791775A1 (de) * 2004-09-21 2007-06-06 Strahm Textile Systems AG Vorrichtung zum unterbrechungsfreien aufwickeln einer kontinuierlich zugeförderten textilen warenbahn
EP3115324A1 (en) * 2015-07-06 2017-01-11 Qubiqa Esbjerg A/S A method and apparatus for making rolls from flexible material, such as mineral wool
DE102015112142A1 (de) 2015-07-24 2017-01-26 Saint-Gobain Isover G+H Ag Verfahren zum Vorbereiten einer Dämmstoffbahn für den Transport und Vorrichtung zum Durchführen des Verfahrens

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2890000A (en) * 1955-09-26 1959-06-09 Beloit Iron Works Winder drive
US3991538A (en) * 1975-01-27 1976-11-16 Owens-Corning Fiberglas Corporation Packaging apparatus for compressible strips
GB1589875A (en) * 1976-11-17 1981-05-20 Newalls Insulation Co Ltd Manufacturing of insulation products
US4256269A (en) * 1978-12-28 1981-03-17 Tex-Del, Inc. Carpet roll forming apparatus and method
US4475696A (en) * 1982-09-29 1984-10-09 Birch Brothers Southern Incorporated Two station winding apparatus
FR2553744B1 (fr) * 1983-10-21 1986-03-28 Saint Gobain Isover Enrouleuse a compression asservie

Also Published As

Publication number Publication date
CA1319602C (fr) 1993-06-29
FI882613A0 (fi) 1988-06-02
FR2616137B1 (fr) 1990-08-03
FI85839C (fi) 1992-06-10
KR0135611B1 (ko) 1998-04-24
JPS63310440A (ja) 1988-12-19
BR8802656A (pt) 1988-12-27
JP2608582B2 (ja) 1997-05-07
AU1287688A (en) 1988-12-08
EP0294290A3 (en) 1989-01-04
ZA883471B (en) 1988-11-21
KR890000330A (ko) 1989-03-13
FR2616137A1 (fr) 1988-12-09
ATE68159T1 (de) 1991-10-15
DK167528B1 (da) 1993-11-15
GR3003424T3 (en) 1993-02-17
AU611888B2 (en) 1991-06-27
NO882434D0 (no) 1988-06-02
FI882613A (fi) 1988-12-04
NO882434L (no) 1988-12-05
ES2028322T3 (es) 1992-07-01
NO166223C (no) 1991-06-19
DK299988A (da) 1988-12-04
US4928898A (en) 1990-05-29
NO166223B (no) 1991-03-11
DK299988D0 (da) 1988-06-02
FI85839B (fi) 1992-02-28
DE3865361D1 (de) 1991-11-14
EP0294290A2 (fr) 1988-12-07

Similar Documents

Publication Publication Date Title
EP0294290B1 (fr) Procédé relatif aux enrouleuses à compression
CA1294527C (fr) Procede pour envelopper une balle en rotation, constituee d'une bande continue de fibres minerales revetue dans une enveloppe de protection deposee au cours de l'enroulement de laballe en vue de son conditionnement, ainsi que dispositif pour la mise en oeuvre du procede
EP0140785B1 (fr) Enrouleuse a compression asservie
EP0170539B1 (fr) Procédé et dispositif de fabrication d'un tube de carton calibré à tres faible rugosité de surface et haute stabilité dimensionnelle
EP0238393B1 (fr) Perfectionnements aux enrouleuses à compression
FR2548641A1 (fr) Dispositif de deroulement
FR2463000A1 (fr) Procede d'enrobage d'une bande fibreuse a structure ouverte dans une resine a base de chlorure de polyvinyle
EP3565777B1 (fr) Procede et installation de trancannage en continu de bandelettes de gomme autour de bobines
EP0375486B1 (fr) Procédé d'obtention d'un panneau surface à base de fibres minérales
EP1747158B1 (fr) Procede de fabrication d"un rouleau a devidage central et rouleau obtenu
EP0806284B1 (fr) Film de suremballage, dispositif d'étirage préalable de film et procédé de suremballage
EP1711423B1 (fr) Dispositif d'enroulement a deux rouleaux d'entrainement pour machine a enrouler en continu et procede d'enroulement avec regulation de l'effort d'application des rouleaux d'entrainement
EP1565303B1 (fr) Procede de fabrication de tubes souples plastiques ou metalloplastiques
FR3059988B1 (fr) Procede et machine pour l'enroulement d'un element filaire autour d'une piece pour le frettage, l'enroulement filamentaire ou le marouflage
EP0465414B1 (fr) Dispositif de contrôle d'un flux de tabac avant écrêtage
FR3044955A1 (fi)
FR2763018A1 (fr) Carton ondule rigide
EP0072315A1 (fr) Procédé et machine de fabrication d'un cylindre tubulaire de carton, notamment d'un corps de fût et cylindre de carton fabriqué par ce procédé
BE1008789A3 (fr) Feutre en materiau fibreux d'orientation aleatoire courbable.
FR2734757A1 (fr) Procede et appareil d'impregnation de colle d'une pluralite de rubans continus
BE570642A (fi)
EP0601258A1 (fr) Procédé et dispositif de raccordement de bandes de papier notamment de bandes de papier destinées à envelopper un produit de l'industrie du tabac
CH443654A (fr) Procédé pour la fabrication d'objets moulés ou conformés à partir de fibres minérales, notamment de fibres de verre
BE484438A (fi)

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH DE ES FR GB GR IT LI LU NL SE

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH DE ES FR GB GR IT LI LU NL SE

17P Request for examination filed

Effective date: 19890613

17Q First examination report despatched

Effective date: 19901130

17Q First examination report despatched

Effective date: 19910117

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE ES FR GB GR IT LI LU NL SE

REF Corresponds to:

Ref document number: 68159

Country of ref document: AT

Date of ref document: 19911015

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3865361

Country of ref document: DE

Date of ref document: 19911114

ITF It: translation for a ep patent filed

Owner name: DR. ING. A. RACHELI & C.

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GR

Payment date: 19920330

Year of fee payment: 5

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2028322

Country of ref document: ES

Kind code of ref document: T3

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: GR

Ref legal event code: FG4A

Free format text: 3003424

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19931231

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: LU

Payment date: 19940430

Year of fee payment: 7

EPTA Lu: last paid annual fee
REG Reference to a national code

Ref country code: GR

Ref legal event code: MM2A

Free format text: 3003424

EAL Se: european patent in force in sweden

Ref document number: 88401336.8

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19950602

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20060821

Year of fee payment: 19

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20070523

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20070530

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20070607

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20070614

Year of fee payment: 20

Ref country code: BE

Payment date: 20070614

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20070717

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20070530

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20070625

Year of fee payment: 20

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080101

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20070613

Year of fee payment: 20

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

Expiry date: 20080601

Ref country code: CH

Ref legal event code: PL

BE20 Be: patent expired

Owner name: *ISOVER SAINT-GOBAIN

Effective date: 20080602

NLV7 Nl: ceased due to reaching the maximum lifetime of a patent

Effective date: 20080602

EUG Se: european patent has lapsed
REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20080603

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20080603

Ref country code: NL

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20080602

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20080601