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EP1071521B1 - Verfahren und vorrichtung zur glättung einer ablagerung von unterteilten feststoffen - Google Patents

Verfahren und vorrichtung zur glättung einer ablagerung von unterteilten feststoffen Download PDF

Info

Publication number
EP1071521B1
EP1071521B1 EP99917823A EP99917823A EP1071521B1 EP 1071521 B1 EP1071521 B1 EP 1071521B1 EP 99917823 A EP99917823 A EP 99917823A EP 99917823 A EP99917823 A EP 99917823A EP 1071521 B1 EP1071521 B1 EP 1071521B1
Authority
EP
European Patent Office
Prior art keywords
support
reciprocating movement
divided solid
solid materials
deposited
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
EP99917823A
Other languages
English (en)
French (fr)
Other versions
EP1071521A1 (de
Inventor
Alain Lemoine
Albert Roussel
René Duforest
François NAUDIN
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.)
Tarkett Sommer SA
Original Assignee
Tarkett Sommer SA
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 Tarkett Sommer SA filed Critical Tarkett Sommer SA
Priority to EP99917823A priority Critical patent/EP1071521B1/de
Publication of EP1071521A1 publication Critical patent/EP1071521A1/de
Application granted granted Critical
Publication of EP1071521B1 publication Critical patent/EP1071521B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/12—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by mechanical means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D2401/00—Form of the coating product, e.g. solution, water dispersion, powders or the like
    • B05D2401/30—Form of the coating product, e.g. solution, water dispersion, powders or the like the coating being applied in other forms than involving eliminable solvent, diluent or dispersant
    • B05D2401/32—Form of the coating product, e.g. solution, water dispersion, powders or the like the coating being applied in other forms than involving eliminable solvent, diluent or dispersant applied as powders

Definitions

  • the present invention relates to both a method and a device which make it possible to smooth, that is to say to level, products made from divided solid materials such as pulverulent products, powders or granules, and in the form of regular or irregular "heaps" deposited on a mobile support.
  • an important category is represented by coverings formed in the form of a relatively thick sheet made of a material synthetic, and whose decor is built in the mass.
  • the main characteristic of this type of product must be the absence of variation of the decoration according to wear.
  • New techniques have also been proposed which aim to dispense with the use of a rolling mill. For this purpose, it has been proposed to use chips or particles embedded in a binder which is coated on a support. According to another method, a bed of chips is deposited and the binder is then deposited on the decoration consisting of the chips.
  • the Applicant has in particular developed a process for producing a decoration using localized deposits of solid particles or powders carried out using rotary frames. This process is particularly well described in patent applications FR-A-2542260 and FR-A-2548093.
  • the present invention aims to avoid the drawbacks of conventional smoothing techniques when depositing products in the form of a divided solid. More particularly, the present invention aims to propose a process for smoothing the materials listed above deposited in the form of small regular or irregular heaps on a support moving in principle at constant speed in order to obtain a more uniform, smoother and upgraded.
  • the main aim sought is to obtain on the support a layer which can be both thin and thick but which must necessarily be regular, uniform and free of relief, starting from a homogeneous or heterogeneous mixture of products deposited in the form of regular or irregular heaps, these products being in a solid and divided state. These products may be of the same or different nature, texture and particle size.
  • An additional aim of the present invention is to propose a method and a device which make it possible to avoid excessive deformation of the final decoration obtained by the deposition of the materials in the form of a heap.
  • a first object of the present invention aims to propose a process for smoothing divided solid materials such as pulverulent products, powders or granules, deposited in the form of small regular or irregular heaps on an essentially horizontal support movable in the direction of the 'advance (and which corresponds to the direction of scrolling).
  • This horizontal support can be a film or directly the conveyor belt on which the deposition of the divided solid materials is carried out.
  • a first essential characteristic of this process lies in the fact that said essentially horizontal support on which the materials are deposited in the form of small heaps is driven by an alternating oscillatory movement, said movement being applied uniformly over the entire width of said support.
  • the direction of the alternating oscillatory movement is transverse with respect to the direction of advance, that is to say that the movement will take place perpendicularly to the movement of the support and this in the essentially horizontal plane of the support.
  • this direction is parallel to the direction of advance, the alternating oscillatory movement being carried out longitudinally with respect to the movement of the support and this also in the essentially horizontal plane of the support.
  • the direction is perpendicular to the plane of the support. This means that the movement will take place vertically with respect to the support, which is itself essentially horizontal.
  • oscillatory movements being a combination of the various embodiments mentioned above.
  • the movement can be performed obliquely or diagonally or even even in circular form.
  • the support that is to say the film or the conveyor belt, is tensioned or is prestressed in its elasticity zone.
  • This tensioning or prestressing must above all be carried out in the direction of advance. This means that consideration is given to carrying out the tensioning or prestressing of the support longitudinally.
  • a second object of the present invention is to provide a device for smoothing divided solid materials such as pulverulent products, powders or granules, deposited in the form of regular or irregular heaps on an essentially horizontal support and moving in the direction of 'advanced.
  • This device comprises a conveyor belt which can be directly the above-mentioned horizontal support or which can serve as a means of transport to said horizontal support constituted by a film on which the deposition is carried out.
  • the device is provided with means allowing an alternating oscillatory movement of the support.
  • These means can for example comprise a table on which the conveyor belt or even the film moves and which performs the required oscillatory reciprocating movement controlled for example by a connecting rod - crank system.
  • the means must be provided so that the movement is applied uniformly over the entire width of the support.
  • the device comprises the necessary means for tensioning or prestressing the horizontal support in its zone of elasticity preferably in the direction of travel. This means that the tensioning takes place essentially longitudinally.
  • a device for driving said support which makes it possible to drive the latter at a speed slightly lower upstream relative to the speed of travel downstream.
  • the device also comprises means which make it possible to avoid any flapping of the support outside the implementation zone in order to prevent the transmission of the alternating oscillatory movement upstream and downstream.
  • Reciprocating oscillatory movement means a movement which takes place by returning to the starting point. It is not a vibratory movement which is a movement generated by a succession of shocks.
  • a final object of the present invention relates to the product obtained by the process or the device according to the invention, having a design, possibly geometric, almost identical to the initial design and obtained from divided solid materials, and having little or no relief.
  • Figures 1, 2, 3 and 4 relate to a device for smoothing divided solid materials deposited on a film
  • Figures 5 and 6 relate to a device for smoothing powdery materials directly deposited on the conveyor belt.
  • film is used as opposed to the term “strip” to indicate that the support is a self-supporting film (10) on which the pulverulent materials are deposited while the strip (100) is directly the conveyor belt on which the powdery materials are deposited.
  • the film or the strip constitutes an essentially horizontal support integrated into the production line which circulates in the direction of advance necessarily at a speed in principle constant defined by the production speed of the line.
  • the divided solids are deposited using one or more distributor (s) (1, 2, 3 and 4) on a film (10) or on a strip (100 ) which are driven at a constant speed by a conveyor (5) in the running direction represented by the unidirectional arrow.
  • the device is equipped with several vacuum tables, and more specifically three vacuum tables (21, 22 and 23).
  • a single vacuum table (22) is proposed.
  • This table or the central table (22) is provided with a device (6) which makes it possible to perform an alternating oscillatory movement, preferably of small amplitude.
  • the frequency of the oscillatory movement is preferably adjustable and can be between 5 and 500 Hz depending on the nature of the deposit, but also according to the direction in which this alternating oscillatory movement will take place.
  • this movement is carried out in the horizontal plane and transversely to the direction of travel of the support (10 or 100).
  • This oscillatory movement is carried out conventionally using a connecting rod - crank system shown in more detail in FIG. 4.
  • An eccentric (60) transmits the movement to a connecting rod (61), itself connected to a shaft (62) via a socket (63). This shaft is fixed by two of its ends (64 and 65) directly to the central vacuum table (22).
  • the eccentric (60) thus makes it possible to impart an alternating oscillatory movement to said table, which transmits it uniformly to the support (10 or 100).
  • a movement in other directions can be printed on the support.
  • the horizontal support consisting either of the film (10) as shown in FIG. 1, or of the strip (100) as shown in FIG. 5, is kept under tension.
  • this tensioning of the support can be envisaged.
  • the support which must be an elastic support, will be tensioned in its elasticity zone.
  • the support then has a regular, uniform and uneven layer of powder. This layer is then agglomerated and fixed to the support by means known per se such as ovens or IR tunnels (70).
  • the product obtained is cooled, signed and wound up according to the embodiment shown in Figures 1, 2, 3 and 4 while it can optionally be transmitted on another support according to the embodiment shown in Figures 5 and 6.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Physical Vapour Deposition (AREA)
  • Coating Apparatus (AREA)

Claims (12)

  1. Verfahren zur Glättung von unterteilten Feststoffen, wie pulverförmigen Produkten, Pulvern oder Granulaten, die in der Form von regelmäßigen oder von unregelmäßigen Haufen auf einen im wesentlichen horizontalen Träger abgelegt werden, der in der Vorschubrichtung beweglich ist, dadurch gekennzeichnet, dass :
    - der besagte im wesentlichen horizontale Träger (10 oder 100) sich in einer hin- und hergehenden oszillierenden Bewegung befindet, wobei die besagte Bewegung auf eine einheitliche Art und Weise auf die ganze Breite des besagten Trägers aufgebracht wird, und dadurch dass
    - der Träger unter Spannung oder unter Vorspannung im wesentlichen in der Vorschubrichtung gesetzt wird.
  2. Verfahren gemäss Anspruch 1, dadurch gekennzeichnet, dass das Setzen unter Spannung oder unter Vorspannung des Trägers in der Elastizitätszone desselben durchgeführt wird.
  3. Verfahren gemäss Anspruch 1 oder 2, dadurch gekennzeichnet, dass die hin- und hergehende oszillierende Bewegung in einer in Bezug auf die Vorschubrichtung quer verlaufenden Richtung durchgeführt wird.
  4. Verfahren gemäss Anspruch 1 oder 2, dadurch gekennzeichnet, dass die hin- und hergehende oszillierende Bewegung in einer in Bezug auf die Vorschubrichtung parallelen Richtung durchgeführt wird.
  5. Verfahren gemäss Anspruch 1 oder 2, dadurch gekennzeichnet, dass die hin- und hergehende oszillierende Bewegung in einer in Bezug auf die Ebene des horizontalen Trägers orthogonal verlaufenden Richtung durchgeführt wird.
  6. Verfahren gemäss irgendeinem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass man den Träger daran hindert, eine oszillierende Bewegung außerhalb der Zone der Benutzung durchzuführen.
  7. Verfahren gemäss irgendeinem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der im wesentlichen horizontale Träger entweder ein Film ist, auf den man die unterteilten Feststoffe ablegt, oder unmittelbar das Transportband, auf das man die unterteilten Feststoffe ablegt.
  8. Vorrichtung zur Glättung von unterteilten Feststoffen, wie pulverförmigen Produkten, Pulvern oder Granulaten, die in der Form von regelmäßigen oder von unregelmäßigen Haufen auf einen im wesentlichen horizontalen Träger (10) abgelegt werden, der in der Vorschubrichtung vorbeiläuft, dadurch gekennzeichnet, dass diese Vorrichtung Mittel (21, 22, 23) umfasst, die es erlauben, eine hin- und hergehende oszillierende Bewegung des Trägers durchzuführen, sowie Mittel (51, 52), um den Träger unter Spannung oder unter Vorspannung zu setzen.
  9. Vorrichtung gemäss Anspruch 8, dadurch gekennzeichnet, dass die Mittel (21, 22, 23), die es erlauben, eine hin- und hergehende oszillierende Bewegung durchzuführen, einen Tisch aufweisen, auf dem sich der Träger (10) bewegt und der die hin- und hergehende oszillierende Bewegung unter der Einwirkung eines Kurbelgetriebes (60, 61) durchführt.
  10. Vorrichtung gemäss Anspruch 8 oder 9, dadurch gekennzeichnet, dass die Mittel, um den Träger unter Spannung oder unter Vorspannung zu setzen, mit Hilfe einer Mitnahmevorrichtung (52) des besagten Trägers bewerkstelligt werden, die es erlaubt, den Träger mit einer Geschwindigkeit mitzunehmen, die aufwärts leicht geringer ist als abwärts.
  11. Vorrichtung gemäss irgendeinem der Ansprüche 8 bis 10, dadurch gekennzeichnet, dass sie Mittel (31, 32) umfasst, die es erlauben, jegliche Bewegung in der vertikalen Richtung zu verhindern.
  12. Produkt, das gemäss dem Verfahren nach irgendeinem der Ansprüche 1 bis 7 oder durch die Vorrichtung gemäss irgendeinem der Ansprüche 8 bis 11 erzielt worden ist, dadurch gekennzeichnet, dass es ein ggf. geometrisches Muster aufweist, das fast identisch mit dem ursprünglichen Muster ist und das ausgehend von unterteilten Feststoffen erzielt wird und das kein oder nur wenig Relief aufweist.
EP99917823A 1998-04-10 1999-03-17 Verfahren und vorrichtung zur glättung einer ablagerung von unterteilten feststoffen Expired - Lifetime EP1071521B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP99917823A EP1071521B1 (de) 1998-04-10 1999-03-17 Verfahren und vorrichtung zur glättung einer ablagerung von unterteilten feststoffen

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
EP98201100 1998-04-10
EP98201100 1998-04-10
EP98202597A EP0949012A1 (de) 1998-04-10 1998-07-31 Verfahren und Vorrichtung zur Glättung von Abscheidungen aus Festpartikeln
EP98202597 1998-07-31
EP99917823A EP1071521B1 (de) 1998-04-10 1999-03-17 Verfahren und vorrichtung zur glättung einer ablagerung von unterteilten feststoffen
PCT/EP1999/001799 WO1999052652A1 (fr) 1998-04-10 1999-03-17 Procede et dispositif de lissage d'un depot de matieres solides divisees

Publications (2)

Publication Number Publication Date
EP1071521A1 EP1071521A1 (de) 2001-01-31
EP1071521B1 true EP1071521B1 (de) 2003-01-29

Family

ID=26150206

Family Applications (2)

Application Number Title Priority Date Filing Date
EP98202597A Withdrawn EP0949012A1 (de) 1998-04-10 1998-07-31 Verfahren und Vorrichtung zur Glättung von Abscheidungen aus Festpartikeln
EP99917823A Expired - Lifetime EP1071521B1 (de) 1998-04-10 1999-03-17 Verfahren und vorrichtung zur glättung einer ablagerung von unterteilten feststoffen

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP98202597A Withdrawn EP0949012A1 (de) 1998-04-10 1998-07-31 Verfahren und Vorrichtung zur Glättung von Abscheidungen aus Festpartikeln

Country Status (9)

Country Link
EP (2) EP0949012A1 (de)
AT (1) ATE231748T1 (de)
AU (1) AU3597099A (de)
CA (1) CA2312800A1 (de)
DE (1) DE69905148T2 (de)
ES (1) ES2188158T3 (de)
HU (1) HU224285B1 (de)
PL (1) PL343445A1 (de)
WO (1) WO1999052652A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3097142B1 (fr) * 2019-06-11 2022-05-27 Commissariat Energie Atomique Procédé de dépôt

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2349283A1 (fr) * 1976-04-29 1977-11-25 Pirat Robert Dispositif pour le poudrage de produits alimentaires, notamment de saucissons
FR2358833A1 (fr) * 1976-07-19 1978-02-17 Gougot Camille Machine a poudrer les saucissons
JPS57187071A (en) * 1981-05-13 1982-11-17 Toshiba Corp Paint film forming method

Also Published As

Publication number Publication date
WO1999052652A1 (fr) 1999-10-21
HU224285B1 (hu) 2005-07-28
ES2188158T3 (es) 2003-06-16
ATE231748T1 (de) 2003-02-15
EP1071521A1 (de) 2001-01-31
AU3597099A (en) 1999-11-01
EP0949012A1 (de) 1999-10-13
DE69905148T2 (de) 2004-02-19
PL343445A1 (en) 2001-08-13
HUP0101038A3 (en) 2001-08-28
HUP0101038A2 (hu) 2001-07-30
DE69905148D1 (de) 2003-03-06
CA2312800A1 (fr) 1999-10-21

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