EP1502717B1 - Procédé pour retirer des déchets d'une pose en fibres minérales - Google Patents

Procédé pour retirer des déchets d'une pose en fibres minérales Download PDF

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Publication number
EP1502717B1
EP1502717B1 EP04018116A EP04018116A EP1502717B1 EP 1502717 B1 EP1502717 B1 EP 1502717B1 EP 04018116 A EP04018116 A EP 04018116A EP 04018116 A EP04018116 A EP 04018116A EP 1502717 B1 EP1502717 B1 EP 1502717B1
Authority
EP
European Patent Office
Prior art keywords
fiber product
mineral fiber
pressurized air
pulse
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.)
Active
Application number
EP04018116A
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German (de)
English (en)
Other versions
EP1502717A2 (fr
EP1502717A3 (fr
Inventor
Anton Zysik
Harald Ligtenberg
Georg Jung
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 G+H AG
Original Assignee
Saint Gobain Isover G+H AG
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Publication date
Application filed by Saint Gobain Isover G+H AG filed Critical Saint Gobain Isover G+H AG
Priority to SI200430536T priority Critical patent/SI1502717T1/sl
Publication of EP1502717A2 publication Critical patent/EP1502717A2/fr
Publication of EP1502717A3 publication Critical patent/EP1502717A3/fr
Application granted granted Critical
Publication of EP1502717B1 publication Critical patent/EP1502717B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/18—Means for removing cut-out material or waste
    • B26D7/1845—Means for removing cut-out material or waste by non mechanical means
    • B26D7/1854—Means for removing cut-out material or waste by non mechanical means by air under pressure

Definitions

  • the invention relates to a method for removing the non-benefit from the use of a mineral fiber product according to the preamble of claim 1.
  • the material to be removed is first separated from the residual material, for example by a cutting process such as a punching operation.
  • a cutting process such as a punching operation.
  • the separation by the punching process as such is sufficient, and the separated material usually falls out of the breakthrough easily by gravity, so that it is created directly by the punching process .
  • the adhesion of the waste material to the residual material due to the rough and large fiber surface is so high that the actual removal of the waste material requires a mechanical ejection process.
  • the fiber product is thus provided with cuts, however, it still contains the waste, which is referred to as "non-use” in technical terms, while the remaining material ultimately to be used is referred to as "benefit".
  • non-use in technical terms
  • benefit the remaining material ultimately to be used
  • GB 696,398 is a method for removing a Toonutzens from the use of a product, here a carton, known, in which the non-use is defined by a separation process and the product thus pretreated is transported lying on a conveyor organ.
  • compressed air nozzles are arranged above the conveying member on a traverse whose position along the traverse and thus transversely to the conveying direction of the product in a desired position is adjustable and fixable. Further, a pulse burst of the compressed air nozzle is generated when the targeted non-use passes under the compressed air nozzle.
  • the present invention is based on the initially discussed method as the closest prior art, since this refers to the processing of serving as an insulating mineral fiber products.
  • the invention has for its object to provide a method for removing the non-benefit of the benefits of mineral fiber products, which avoids manual work, but it ensures a reliable removal of all non-use without risk of damage to the benefit and without excessive energy consumption.
  • the targeted control of the desired impact point for the air pressure surge takes place in the surface of the mineral fiber product two-dimensional: the one dimension transverse to the conveying direction is set by a mechanical pre-adjustment and fixing the compressed air nozzle at that point above the product, which corresponds to the position of the targeted Brocknutzens in the width direction of the product.
  • the control in the conveying direction is carried out by a temporal control such that the compressed air pulse is generated at exactly the time at which the targeted non-use passes under the compressed air nozzle.
  • substantially symmetrical non-use of the impulse pulse is as accurate as possible in the center of the non-use, to drive out the non-use, without causing tilting.
  • the optimum position of the impulse burst (s) will be determined empirically.
  • a pulse impulse would expediently be directed to the respective spectacle eye.
  • the temporal pulse width or pulse duration of the compressed air blasts according to the invention is limited to a maximum of 0.1 s.
  • the impulse peak which occurs with a duration in the range of a thousandth of a second.
  • a narrow limitation of the pulse duration on both sides of the pulse peak allows a concentration of the available pulse energy on the pulse peak and thus a high pulse force at the exact desired time.
  • the activation of a connected to a compressed air reservoir tank compressed air nozzle takes place with such a lead time, which corresponds to the delay of the pulse exit from the nozzle opening with respect to the pulse triggering.
  • a compressed air reservoir tank upstream of the compressed air nozzle is advantageously used because it provides a sufficient amount of air to achieve a large impulse force.
  • the delay between pulse initiation and pulse output can be calculated accurately, so that the pulse emerges with great local accuracy to meet the non-use exactly at a desired location.
  • the nozzle opening covers a product length of 30 mm in one tenth of a second and 3 mm in one hundredth of a second.
  • the timing of the pulse bursts according to claim 3 is preferably computer controlled in dependence on the position of the non-use in the transport direction of the mineral fiber product and the running speed of the conveying member. In this way, the lead time of the control of the nozzle can be set as arbitrarily accurate such that the impulse pulse is limited in time and hits the product surface at the exact desired time.
  • the temporal pulse width or pulse duration is limited to less than 0.05 s.
  • another sub-task of the invention is to avoid the manual labor in pre-stacking the products for the packaging at the end of the line even in the case of producing unbacked mineral fiber products.
  • a flow gripper is placed on top of the mineral fiber product, which produces such a pressure difference .DELTA.p between the underside of the mineral fiber product and its top, which, multiplied by the effective area of the mineral fiber product, exceeds the weight of the mineral fiber product.
  • the conveyor belt according to claim 6 for example, through air permeable perforations formed and / or the mineral fiber product relative to the surface of the conveyor belt mounted.
  • the area of the underside of the flow gripper preferably corresponds substantially to the area of the mineral fiber product.
  • the entire surface of the mineral fiber product is used to generate the lifting force, so that the lifting of the mineral fiber product can be done with minimal ⁇ p.
  • the effect of possible breakthroughs left behind by non-use is minimized here in the sense of producing incorrect air, since the area fraction of non-use compared to the benefit is generally very small.
  • the area of the flow gripper is smaller than the surface of the product, an unfavorably located large-area non-use could lead to considerable erroneous air flow and thus disturbance of the pressure build-up.
  • a mineral fiber product denoted overall by 1, in the example of an unbacked needle felt, rests on a conveying member 2.
  • the conveying member 2 consists of a plurality of successively connected conveyor belts 3 and 4.
  • the mineral fiber product 1 consists of the so-called benefit 5 and one or more non-use 6, which have been separated from the utility 5 to form breakthroughs in a previous separation process.
  • the non-benefits 6 are manually pushed out of use 5 in current practice. With a relatively large area non-use 6, this is possible with little effort, since the non-use 6 bends at punctual load by a finger and can be disposed of deforming. In the case of small-area non-use 6, on the other hand, the situation is more similar to that of a cork in the bottleneck: as can be seen in the enlarged view in Fig. 4, a bending deformation of the non-use 6 in such a case is practically impossible.
  • the non-use 6 is located along the dividing line designated 7 on the benefit, wherein the two fiber surfaces have considerable frictional resistance.
  • a compressed air nozzle 8 which is arranged in the example case above the mineral fiber product 1 at a small distance above the surface thereof.
  • the compressed air nozzle 8 is in the Operated intermittently, as they at exactly the time at which the non-use 6 is conveyed through in the mineral fiber product 1 under the compressed air nozzle 8, generates a strong compressed air pulse, which impinges exclusively and substantially symmetrically on the non-use 6 and this in running conveyor 2 from removed the benefit 5.
  • the disposal point is chosen so that below the fiber product 1 free space for a discharge of non-use 6 is available.
  • a realistic work situation is shown in plan view.
  • Twelve needle felting elements as mineral fiber products 1 lie on the conveying member 2, not shown in detail, wherein each three needle felting elements are arranged adjacent to each other with their longitudinal sides in the width direction of the conveying member 2.
  • This composite of twelve needle felting elements has been produced in this arrangement in a punching station such that on the one hand the dividing lines between the needle felting elements and on the other hand at the same time six non-use 6 per needle felting element have been generated to produce corresponding openings in the needle felts.
  • each non-use 6 is determined by two dimensions: by its position in the width direction (transverse to the conveying direction) and by its distance from the front edge of the composite.
  • two rows of 16 compressed air nozzles 8 are arranged above the conveying member 2. These are adjusted in the width direction and found that one of the compressed air nozzles 8 is located exactly on the line lying in the conveying direction, which passes through one of the non-use 6.
  • the non-use 6 thus all run exactly and in the case of an example centrally under the nozzle opening of a compressed-air nozzle 8 therethrough.
  • Timing of the compressed-air surge such that a tightly limited compressed air surge or compressed air pulse is generated at exactly the time at which the targeted non-use 6 passes under its associated compressed air nozzle 8.
  • This timing is appropriate computer controlled such that the current position of the respective fiber product 1 detected is in the example of Fig. 2, as the leading edge of the composite, and over the known speed of the conveying member that time is calculated, which the targeted non-use 6 needed to reach the position of the associated compressed air nozzle 8.
  • this is done with a relatively close to the compressed air nozzle 8 arranged, not shown compressed air reservoir, which is constantly maintained at a desired pressure and valve-controlled to produce a compressed air surge for a short period of time to the compressed air hose of the compressed air nozzle 8 is opened.
  • the filling of the compressed air hose requires a certain period of time or requires the pressure front coming from the compressed air storage tank a certain time to pass through the compressed air hose and the body of the compressed air nozzle 8 and reach the nozzle orifice and nozzle opening and the surface of the fiber product 1.
  • the computer has to open the output valve of the compressed air storage tank, so as to arrive at a right moment over the targeted non-use 6 taking into account this delay to a generation of the compressed air surge.
  • FIG. 3 an arrangement of such a compressed air nozzle 8 is schematically illustrated.
  • the compressed air nozzle 8 has a lower nozzle opening 9 and a nozzle body 10, which is arranged for the most part in a nozzle holder 11.
  • a compressed air connection 12 is provided, to which a compressed air hose for connection to a compressed air reservoir is connected for operation.
  • the nozzle holder 11 engages around a traverse 13, of which only a short section can be seen in FIG.
  • the traverse 13 has a scale 14, which allows a pointer 15 on the nozzle holder 11 an exact adjustment of the lateral position in the width direction of the conveying member such that the compressed air nozzle 8 shows with its nozzle opening 9 exactly on a line which passes through a non-use 6 (see Fig. 2).
  • a clamping screw 16 is provided, as is customary for such purposes.
  • FIG. 5 schematically illustrated flow gripper 21 is provided.
  • This consists of a box-shaped body 22, a suction air connection 23 and a bottom or bottom surface 24, which is permeable to air, for example, heavily perforated.
  • the flow gripper 21 is so movably mounted in a manner not shown, but known per se, that it is movable up and down and laterally to be able to pre-stack recorded fiber products 1.
  • the conveyor belt 4 in the region of the flow gripper 21 is either likewise designed to be permeable to air, for example perforated, or else with distance elevations provided, which bring the underside of the fiber product 1 at a distance from the surface of the conveyor belt 4.
  • both the conveyor belt 4 and the lower surface 24 is formed in the sense of the lowest possible air resistance, so that the substantial part of the pressure drop of the flow according to the arrows 25 by the increased flow resistance of the mineral fiber product 1 takes place.
  • Breakthroughs contained in the mineral fiber product 1, from which the non-use 6 was previously removed, naturally reduce the overall flow resistance of the mineral fiber product 1. Should these breakthroughs be extensive, and should the flow gripper 21 continue to attack unfavorably in the region of such large-area non-use 6 with a relatively small area A, the generation of a sufficient lifting force becomes difficult. Therefore, it is preferable that the area A of the lower surface 24 be kept in approximate conformity with the area of the mineral fiber product 1. Seen on the total surface of Mineralmaschiner ensues the surface portion of the non-use 6 and the breakthroughs formed thereby is relatively low, otherwise too much material in the form of non-use 6 would have to be disposed of and therefore to a multi-part training of the mineral fiber product 1 avoided. In this context, although the surface areas occupied by apertures do not participate in the generation of the lifting effect, however, the lifting effect in the area of the benefit 5 is sufficient, since the breakthroughs also correspondingly reduce the weight of the fiber product 1.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nonwoven Fabrics (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Paper (AREA)

Claims (8)

  1. Procédé pour retirer les déchets (6) de l'ébauche (5) d'un produit en fibres minérales (1) servant de couche isolante, dans lequel les déchets (6) sont définis par un procédé de séparation comme un procédé de poinçonnage et le produit en fibres minérales (1) ainsi prétraité est transporté couché sur un organe de transport (2), caractérisé en ce qu'au moins une buse d'air comprimé (8) est disposée sur une traverse (13) disposée de préférence au-dessus de l'organe de transport (2), dont la position peut être réglée et fixée le long de la traverse (13) sur la position d'un déchet (6) visé, mesurée transversalement au sens de transport, et qu'une impulsion de la buse d'air comprimé (8) est générée exactement lorsque le déchet (6) visé passe sous la buse d'air comprimé (8),
    dans lequel la largeur d'impulsion temporelle et/ou la durée d'impulsion des impulsions d'air comprimé est limitée au maximum à 0,1 s.
  2. Procédé selon la revendication 1, caractérisé en ce que la buse d'air comprimé (8) est reliée à un réservoir d'air comprimé et en ce que l'activation de la buse d'air comprimé (8) se déroule avec une avance qui correspond au retard calculé de la sortie d'impulsion de l'ouverture de la buse (9) par rapport au déclenchement d'impulsion au niveau du réservoir d'air comprimé.
  3. Procédé selon la revendication 2, caractérisé en ce que la temporisation des impulsions est commandée par ordinateur en fonction de la position des déchets (6) dans le sens de transport du produit en fibres minérales (1), ainsi que de la vitesse d'avance de l'organe de transport (2).
  4. Procédé selon l'une quelconque des revendications 1 à 3, caractérisé en ce que la largeur temporelle des impulsions et/ou la durée d'impulsion des impulsions d'air comprimé est limitée à moins de 0,05 s.
  5. Procédé en particulier selon l'une quelconque des revendications 1 à 4, caractérisé en ce qu'un ramasseur pneumatique (21) est disposé derrière l'élimination des déchets (6) dans le sens de transport de l'organe de transport (2), qui produit un écoulement d'air à travers le produit en fibres minérales (1) de sorte que la chute de pression (Δp) de l'écoulement produite par la résistance à l'écoulement du produit en fibres minérales (1) multipliée par la surface d'action (A) dépasse le poids du produit en fibres minérales (1).
  6. Procédé selon la revendication 5, caractérisé en ce que l'organe de transport (2) et/ou un convoyeur (4) présent au niveau du poste d'empilement est réalisé de manière perméable à l'air par exemple par perforation et/ou le produit en fibres minérales est posé en hauteur par rapport à la surface supérieure du convoyeur (4).
  7. Procédé selon la revendication 5 ou 6, caractérisé en ce que la surface inférieure (24) du ramasseur pneumatique (21) tournée vers le produit en fibres minérales (1) est réalisée de manière perméable à l'air, par exemple perforée.
  8. Procédé selon l'une quelconque des revendications 5 à 7, caractérisé en ce que la surface de la face inférieure (24) du ramasseur pneumatique (21) correspond au moins approximativement à la surface du produit en fibres minérales (1) à soulever.
EP04018116A 2003-08-01 2004-07-30 Procédé pour retirer des déchets d'une pose en fibres minérales Active EP1502717B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI200430536T SI1502717T1 (sl) 2003-08-01 2004-07-30 Postopek odstranjevanja neuporabnega dela iz uporabnega dela izdelka iz mineralnih vlaken

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10335372A DE10335372A1 (de) 2003-08-01 2003-08-01 Verfahren zur Trennung der Nichtnutzen vom Nutzen eines Faserprodukts
DE10335372 2003-08-01

Publications (3)

Publication Number Publication Date
EP1502717A2 EP1502717A2 (fr) 2005-02-02
EP1502717A3 EP1502717A3 (fr) 2005-07-20
EP1502717B1 true EP1502717B1 (fr) 2007-09-12

Family

ID=33521531

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04018116A Active EP1502717B1 (fr) 2003-08-01 2004-07-30 Procédé pour retirer des déchets d'une pose en fibres minérales

Country Status (4)

Country Link
EP (1) EP1502717B1 (fr)
AT (1) ATE372860T1 (fr)
DE (2) DE10335372A1 (fr)
SI (1) SI1502717T1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005054881B4 (de) * 2004-12-30 2010-04-01 S + P Samson Gmbh Vorrichtungen und Verfahren zum Ausstanzen und Entfernen von Stanzteilen
DE102005030765B3 (de) * 2005-07-01 2006-11-09 Manfred Haas Vorrichtung zum Entfernen von Elementen aus in einem Körper ausgebildeten Ausnehmungen

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB696398A (en) * 1950-11-03 1953-08-26 Cornell Paperboard Products Co Method and apparatus for removing a waste material portion from a partially severed sheet
SU773034A1 (ru) * 1977-12-01 1980-10-23 Кемеровский Межотраслевой Научно- Исследовательский И Проектно- Технологический Институт По Автоматизации И Механизации Машиностроения Лини дл изготовлени жестких минераловатных плит из гидромассы
JPH07132496A (ja) * 1993-11-01 1995-05-23 Tachibana Seisakusho:Kk 不完全断裁部払落とし装置
JPH07237185A (ja) * 1994-02-28 1995-09-12 Hitachi Chem Co Ltd シート切断装置
DE29507029U1 (de) * 1995-04-26 1995-08-24 Imprimex Nesselhauf Gmbh Vorrichtung zum Entfernen von Ausbrechteilen aus Stanzbögen
DE10065457B4 (de) * 2000-12-28 2007-04-26 Karl Marbach Gmbh & Co. Kg Verfahren und Vorrichtung zur Trennung von Nutzen und Abfall eines gestanzten oder geschnittenen Materialbogens sowie Anlage zur Herstellung von Nutzen aus einem Materialbogen

Also Published As

Publication number Publication date
EP1502717A2 (fr) 2005-02-02
ATE372860T1 (de) 2007-09-15
DE10335372A1 (de) 2005-02-17
DE502004004924D1 (de) 2007-10-25
EP1502717A3 (fr) 2005-07-20
SI1502717T1 (sl) 2008-02-29

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