EP1037745A1 - Dispositif et procede de revetement d'objets - Google Patents

Dispositif et procede de revetement d'objets

Info

Publication number
EP1037745A1
EP1037745A1 EP98958937A EP98958937A EP1037745A1 EP 1037745 A1 EP1037745 A1 EP 1037745A1 EP 98958937 A EP98958937 A EP 98958937A EP 98958937 A EP98958937 A EP 98958937A EP 1037745 A1 EP1037745 A1 EP 1037745A1
Authority
EP
European Patent Office
Prior art keywords
coating material
coating
presses
base
vacuum
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.)
Withdrawn
Application number
EP98958937A
Other languages
German (de)
English (en)
Inventor
Sauli Raumavirta
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.)
Diapek Oy
Original Assignee
Diapek Oy
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 Diapek Oy filed Critical Diapek Oy
Publication of EP1037745A1 publication Critical patent/EP1037745A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
    • B29C63/0065—Heat treatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
    • B29C63/02—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using sheet or web-like material
    • B29C63/16—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using sheet or web-like material applied by "rubber" bag or diaphragm

Definitions

  • the present invention relates to an apparatus as defined in the preamble of claim 1 and to a procedure as defined in the preamble of claim 6 for the lamination and/or coating of objects.
  • Finnish patent specification FI 91225 presents a procedure and an apparatus for coating plate-like objects with a plastic film.
  • the plastic film is first warmed and then applied onto an object which has been treated with heat-activated glue.
  • a negative pressure is generated between the plastic film and the object.
  • the object is then taken out of the heating and low-pressure chamber and cooled down by blowing air onto the object using a separate fan.
  • the pressure of the air blown onto the object from a distance by a single fan is unevenly distributed, resulting in uneven cooling of the object and the plastic film on it.
  • the edge areas of the object, which are critical in respect of adhesion of the plastic film, are left without special attention, and consequently the plastic film may be inadequately affixed to the object.
  • the object of the present invention is to eliminate the problems described above.
  • a specific object of the present invention is to present a new type of solution for an apparatus that can be used to coat or laminate plate-like or shaped objects of various sizes .
  • the apparatus of the invention comprises at least two vacuum presses.
  • the vacuum press comprises an element for heating the coating material and an element for generating a negative pressure between the object and a suitable coating material.
  • the object may be of a plate-like shape or it may be a shaped object with a patterned surface, or the object may have e.g. a hemispherical shape.
  • suitable coating materials are plastic foil, paper, wood veneer, glass fibre, metal and corresponding lamination materials.
  • the vacuum press comprises a base on which the object is held in place during the essential operations in the coating process. These operations are pre-heating, generation of negative pressure, heating and prefera- bly cooling.
  • the vacuum press comprises an element for joining it to a second vacuum press so that the bases of the presses form a substantially continuous base.
  • the joining element may consist of e.g. an adapter fitted between the two presses placed side by side, a screw joint connecting the two presses together, a hook-like gripping or latching device, a staple.
  • the base preferably extends to the edges of the press, so the joining element connecting the bases may be e.g. a tape or a fixed pro- jection comprised in the base and forming a tongue- and-groove type joint with the other base.
  • a working area is formed on top of the base, so that when the two presses are connected together, the working areas form a continu- ous working area. This makes it possible to coat or laminate objects that are larger than an individual press, the object size being limited by the combined working area.
  • the second vacuum press comprises only some of the elements of the first vacuum press, so the second vac- uum press may utilise the functions of the first vacuum press, such as e.g. control functions. In a feasible embodiment, the second vacuum press also utilises the pressure generating elements of the first vacuum press.
  • the vacuum presses may preferably also be completely identical, in which case each one is normally used separately but, when necessary, the presses can be combined to allow coating or lamination of larger objects .
  • the apparatus preferably comprises a flexible membranous foil which is lowered onto the coating material and the object. The membranous foil can preferably be reused several times.
  • the apparatus comprises cooling air nozzles from which cool air is supplied over the membranous foil and which are located at the edges of the base.
  • the cooling air is preferably pressurised.
  • the nozzles are directed in an oblique downward direction or the nozzles may consist of holes in a frame above the press, the cooling air being discharged from said holes.
  • the cooling of the coating material and the object is done in a controlled manner so that the edges are also taken into account.
  • cooling can also be effected without a membranous foil.
  • the apparatus preferably comprises a safety device that prevents the operation of the vacuum press when the safety device has detected an obstruction at the edges of the base.
  • the safety device preferably comprises touch-sensitive, e.g. electrically conductive material to allow detection of an obstruction.
  • the safety device may respond to an obstruction e.g. on the basis of a change in the capacitance or resis- tance of the material.
  • the safety device may prefera- bly also detect an obstruction by an optical method, using e.g. a photosensitive material.
  • the coating material is placed on top of the object to be coated, a negative pressure is generated between the object and the coating material, the coating material is heated to affix it to the object and the coating material and the object are preferably cooled after affixation.
  • the object is coated/laminated using an apparatus consisting of at least two vacuum presses.
  • the invention provides the advantage that the system has a modular construction.
  • An important factor contributing towards implementing a modular construction is the form of the vacuum press, in which the working area extends close to the edges of the press. From two or more vacuum presses, it is possible to set up an assembly whose combined working area allows coating of objects larger than the working area of a single press. At the same time, the manufacturing costs of the apparatus remain low because preferably only one type of press is manufactured. The user can enlarge the apparatus as necessary, so a press once bought continues to be usable.
  • the advantages of the procedure of the invention include a reduced consumption of coating material due to diminished waste. The procedure preferably allows the use of sheets pre-cut to size. A further advantage is that the procedure allows simultaneous coating of several different objects.
  • Fig. 1 presents an apparatus according to the invention.
  • Fig. 2 illustrates a combination of a number of vacuum presses in top view.
  • Fig. 1 depicts an apparatus according to the invention for the coating of plate-like objects 1.
  • Fig. 1 shows two vacuum presses connected together and an element 4 for joining the bases of the presses. When joined together, the bases form a continuous base.
  • the frame above the press has been replaced with a frame 9 larger than the frame of the first press, covering both presses.
  • the working areas on top of the bases are combined, thus making it possible to coat objects larger than a single working area.
  • the object 1, coating material 2 and raising block 7 shown in Fig. 1 are in the working area of both presses.
  • the use of a raising block 7 makes it possible to coat e.g. the edges of the plate at the same time.
  • the membranous foil 5 in the example illustrated is attached to the edges of the combined working area, to the frame 9 above the presses.
  • the cool- ing nozzles 6, directed in an obliquely downward direction, are located in the frame 9 above each press.
  • Placed at the edges of the base is a safety device 8, which interrupts the operation of the apparatus if it detects an obstruction at the edges of the base or the working area.
  • Fig. 2 shows a top view of a number of vacuum presses joined together.
  • the working area extends close to the edges of the working area. Therefore, the presses can be joined by any one of their edges.
  • the control functions of all the presses 20, 21 are con- trolled via the control panel of press 20. Presses 21 can be chained one after the other as slaves so that all control functions are implemented in the master press 20. All the presses are substantially equally effective, for they all have the elements essential for the coating of an object. Thus, in principle there is no limit to the maximum size of the apparatus.
  • a base 3 as provided by the invention may consist of one or more vacuum press bases. On top of the base a working area is formed, where all the essential operations in the coating process are performed.
  • the object 1 is held in place throughout the coating process.
  • Several ob- jects may be placed on the base 3 for simultaneous coating.
  • the membranous foil 5 is in the raised position, so the working area is open.
  • the membranous foil is being heated by heat- ing elements placed above it, so the membranous foil is warm when it is lowered, thus accelerating the affixation of the coating.
  • the membranous foil 5 is lowered and a negative pressure is generated under the membranous foil 5. This also produces a negative pressure between the object 1 and the coating material 2, so they are pressed together.
  • the affixation of the coat onto the object 1 can be promoted by applying glue to the object or to the coating material 2.
  • the membranous foil 5 is heated, and the heat also propagates into the coating material 2 and into the object 1.
  • the membranous foil 5 compensates local temperature differences and protects the coating material against burn- through.
  • the coating material 2 is affixed to the ob- ject 1.
  • the object 1 and the coating material 2 are cooled by blowing cool pressurised air over the membranous foil 5.
  • the air nozzles 6 blow air from ' the edges of the base, from the frame above the base. At the same time, a negative pressure is still maintained in the space under the membranous foil 5.
  • the coated object is cooled in a controlled manner and especially the critical edge areas are more successfully coated.
  • the membranous foil 5 is raised again. The same membranous foil 5 can be used in several successive coating operations.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Laminated Bodies (AREA)

Abstract

L'invention concerne un dispositif permettant de laminer et/ou de recouvrir des objets (1) avec un matériau (2) de revêtement approprié. Ce dispositif comprend une première presse sous vide, un élément de chauffage pour le matériau de revêtement, un élément permettant de générer une pression négative entre l'objet (1) et le matériau (2) de revêtement, un élément de refroidissement du matériau (2) de revêtement et de l'objet et une base (3) sur laquelle l'objet est maintenu pendant l'opération de revêtement. Le dispositif comprend au moins deux presses sous vide et un élément (4) permettant de connecter les presses sous vide entre elles de manière que les bases (3) des presses forment une base (3) sensiblement continue. Dans le procédé, un revêtement est appliqué sur l'objet (1) au moyen d'un dispositif comprenant au moins deux presses sous vide.
EP98958937A 1997-12-11 1998-12-09 Dispositif et procede de revetement d'objets Withdrawn EP1037745A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FI974498 1997-12-11
FI974498A FI106544B (fi) 1997-12-11 1997-12-11 Laitteisto ja menetelmä kappaleiden pinnoittamiseksi
PCT/FI1998/000956 WO1999029504A1 (fr) 1997-12-11 1998-12-09 Dispositif et procede de revetement d'objets

Publications (1)

Publication Number Publication Date
EP1037745A1 true EP1037745A1 (fr) 2000-09-27

Family

ID=8550114

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98958937A Withdrawn EP1037745A1 (fr) 1997-12-11 1998-12-09 Dispositif et procede de revetement d'objets

Country Status (6)

Country Link
EP (1) EP1037745A1 (fr)
JP (1) JP2001525272A (fr)
CN (1) CN1284915A (fr)
AU (1) AU1489999A (fr)
FI (1) FI106544B (fr)
WO (1) WO1999029504A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2345661A (en) * 1998-07-13 2000-07-19 Robobond Ltd Decorating ornamented articles
CN201343886Y (zh) 2009-01-12 2009-11-11 梁瑛 一种无避让型立体停车位的车台板结构
CN103029408A (zh) * 2011-10-10 2013-04-10 靖江市永盛光电科技有限公司 一种背光源材料快速贴附与压合的模具
US10086555B2 (en) 2011-10-27 2018-10-02 Whirlpool Corporation Method for forming a laminated part
CN111086199B (zh) * 2019-12-17 2021-08-03 永发（河南）模塑科技发展有限公司 一种纸浆模塑制品覆膜方法和装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4689105A (en) * 1985-04-15 1987-08-25 Advanced Plasma Systems Inc. Multi-layer printed circuit board lamination apparatus
EP0392226A1 (fr) * 1989-03-23 1990-10-17 Mitsubishi Gas Chemical Company, Inc. Procédé intermittent et dispositif de production sous vide d'articles stratifiés
AU4066893A (en) * 1992-09-03 1994-03-29 Athanasisos Bitzounis Method and machine for laminating a decorative layer to the surface of a three-dimensional object
US5607536A (en) * 1992-10-30 1997-03-04 Tikka-System Oy Method and apparatus for coating objects with a plastic film

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9929504A1 *

Also Published As

Publication number Publication date
AU1489999A (en) 1999-06-28
WO1999029504A1 (fr) 1999-06-17
FI974498L (fi) 1999-06-12
CN1284915A (zh) 2001-02-21
JP2001525272A (ja) 2001-12-11
FI974498A0 (fi) 1997-12-11
FI106544B (fi) 2001-02-28

Similar Documents

Publication Publication Date Title
CA2176689A1 (fr) Presse et methode de fusion de feuilles thermoplastiques se chevauchant
US8863804B2 (en) Device for coating a workpiece
JPH05293895A (ja) 真空プレス積層成形装置及び方法
BRPI0609619A2 (pt) aparelho e processo para revestimento de um material de suporte de metal
CA2157699A1 (fr) Systeme et methode de fixation par collage pour machine a ourler
EP1037745A1 (fr) Dispositif et procede de revetement d'objets
EP0329439A3 (fr) Méthode et appareil pour le lustrage de matériaux en feuilles
US6176286B1 (en) Film applying apparatus
US11712880B2 (en) Process for bonding flexible films and device for carrying out the same
JP3813223B2 (ja) 結晶性熱可塑性樹脂シートの熱ラミネート方法
CA2031871A1 (fr) Methode de collage de materiaux de bois
JP4132284B2 (ja) 化粧シート貼り板材の製造装置及び製造方法
JP3199654B2 (ja) 紙箱の製造方法
EP3838525A1 (fr) Systeme de bordurage de chant de paneaux
US4990201A (en) Method for reticulating perforated sheets
JPH11198235A (ja) ３次元造形装置
US6306237B1 (en) Lamination of surfaces using pressurized liquid
JP3333901B2 (ja) 透明ホログラムラミネート金属板及びその製造方法
JPS5845328B2 (ja) ラミネ−ト方法
JP2858734B2 (ja) ラミネ−タ
JPS5817034B2 (ja) 凹凸模様付き化粧体の製造方法
CA2472684A1 (fr) Processus et dispositif de fabrication d'un materiau composite en nid d'abeille
JP2881813B2 (ja) 成形品の絵付け装置
JP2978528B2 (ja) 複合板の製造方法
JPH0825612A (ja) 熱転写装置

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

17P Request for examination filed

Effective date: 20000629

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL PAYMENT 20000629;LT PAYMENT 20000629;LV PAYMENT 20000629;MK PAYMENT 20000629;RO PAYMENT 20000629;SI PAYMENT 20000629

RAP3 Party data changed (applicant data changed or rights of an application transferred)

Owner name: DIAPEK OY

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

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20020702