WO2002094538A1 - Procede et dispositif de production continue de feuilles ondulees/nervurees sous forme de bande enroulable ; bande thermoplastique enroulable a ondulations/nervures transversales - Google Patents

Procede et dispositif de production continue de feuilles ondulees/nervurees sous forme de bande enroulable ; bande thermoplastique enroulable a ondulations/nervures transversales Download PDF

Info

Publication number
WO2002094538A1
WO2002094538A1 PCT/IT2001/000342 IT0100342W WO02094538A1 WO 2002094538 A1 WO2002094538 A1 WO 2002094538A1 IT 0100342 W IT0100342 W IT 0100342W WO 02094538 A1 WO02094538 A1 WO 02094538A1
Authority
WO
WIPO (PCT)
Prior art keywords
web
forming
cylinder
corrugated
thermoplastic material
Prior art date
Application number
PCT/IT2001/000342
Other languages
English (en)
Inventor
Giuseppe Liati
Original Assignee
Dipiemme Dies And Plastic Machinery S.R.L.
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 Dipiemme Dies And Plastic Machinery S.R.L. filed Critical Dipiemme Dies And Plastic Machinery S.R.L.
Priority to IL15900701A priority Critical patent/IL159007A0/xx
Priority to EP01949897A priority patent/EP1390191A1/fr
Publication of WO2002094538A1 publication Critical patent/WO2002094538A1/fr

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
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/22—Corrugating
    • B29C53/24—Corrugating of plates or sheets
    • B29C53/28—Corrugating of plates or sheets transverse to direction of feed
    • B29C53/285—Corrugating of plates or sheets transverse to direction of feed using rolls or endless bands

Definitions

  • the invention refers to the field of sheets or plates of undulated or corrugated plastic material, as are currently in widespread use in the construction industry, for packaging, for do-it-yourself and for numerous other uses.
  • the corrugated thermoplastic materials currently on the market are produced continuously via a process which includes a step of plasticization of the thermoplastic material with an extruder, a step of rolling of the web through a flat head and a calender, a subsequent step of deformation of the web according to shapes with axes longitudinal to the web, through a series of roller trains which transform the section of the web from planar to longitudinally corrugated.
  • this production system allows only the formation of corrugated sheets with longitudinal ribs (corrugations). Said webs, on account of their shape, cannot be wound into rolls, and therefore they are cut into sheets and stacked for storage and transport, with the drawback of requiring a greater percentage of overlapping in use.
  • windable corrugated webs of fibreglass material which are produced with corrugations at right angles to the direction of production by means involving a process of impregnation of a textile support, which is then subjected to drying so that the resin hardens.
  • Such a production process is not applicable to thermoplastic materials.
  • the objects of the present invention are to obtain a windable corrugated web of thermoplastic material and allow production on an industrial scale of web products of corrugated thermoplastic material sheet that can be wound in a roll.
  • the invention provides a web of thermoplastic material, however produced, which is corrugated transversely to the length thereof. It further provides a production process whereby a continuous web of thermoplastic material is extruded with simultaneous on-line extrusion, or alternatively produced separately and fed with a roll of pre-extruded thermoplastic material, in suitable conditions of temperature, and subsequently formed with corrugations having a transverse axis with respect to the direction of extrusion-feeding, namely to the longitudinal direction of the web, in a cylinder assembly which operates with the aid of a suction system. The web is then trimmed along the longitudinal edges thereof.
  • the apparatus of the invention comprises a cylinder assembly, a forming cylinder of which has channel shapes extending substantially parallel to the axis of the cylinder and communicating with a vacuum system, and a so-called drawing cylinder that has elongated protrusions parallel to the axis of the cylinder and collaborates with the forming cylinder to form the corrugations of the web.
  • the invention allows to overcome the drawbacks of the prior art, and in particular forms a windable corrugated web and allows production of a continuous web of corrugated sheet material that can be wound in a roll, with consequent advantages as regards transport and storage. Furthermore it provides a process for producing corrugated webs and panels that can be wound in a roll, with resulting advantages as far as transport and storage are concerned. Furthermore it provides a process for production of corrugated webs and panels that is economically competitive.
  • Figures 1, 2, 3 and 4 are perspective views of portions of corrugated plastic web, as can be obtained by the present invention
  • Figure 5 is a perspective view of corrugated web according to the present invention, wound in a roll around a core;
  • Figure 6 is a part sectional elevational view of a calender for shaping the web
  • Figure 7 is a diagrammatic side elevational view, with parts removed, of the calender of
  • Figure 6 is a sectional view of a forming cylinder of the calender, taken along plane 8-8 of figure 9, perpendicular to the axis of the roller itself;
  • Figure 9 is a side elevational view of the forming cylinder;
  • Figure 10 is a broken off axial section through the forming cylinder
  • Figure 11 shows, in a broken-off sectional view taken in a plane perpendicular to the respective axes, a collaborating drawing cylinder and forming cylinder, for forming a fret-type corrugated web,
  • Figure 12 shows, in a section similar to that of Figure 11, a collaborating drawing cylinder and forming cylinder, for forming wave-type corrugated web,
  • Figure 13 is a broken off perspective view of a web of material leaving the calender, before longitudinal trimming of the sides along the dashed lines.
  • Figures 1 and 4 show portions of wave shaped (Figs 1 and 2) or fret shaped (Figs 3, 4) corrugated web or panels, of extruded thermoplastic material, as can be obtained according to the present invention.
  • corrugated panels were per se known to the art prior to the invention, it was not known prior thereto to form said panels with the corrugations having their axis transverse to the direction of travel, or of extrusion, of the plastic material used for the panel. Said direction of travel and/or of extrusion is indicated by an arrow in Figures 1-4.
  • Figure 5 shows a web lb wound in a roll around a core 2, and said figure shows both the arrangement of the undulations of the web, transverse to the longitudinal direction of said web, and one of the advantages of the invention, that is to say the possibility of winding the web produced.
  • the apparatus 10 comprises, on a framework 12, a forming cylinder 14 having a horizontal axis, a cooperating cylinder 16 collaborating in forming, henceforth called
  • drawing cylinder for the sake of brevity, having a horizontal axis, and an accompanying or cooling cylinder 18 having a horizontal axis.
  • the three cylinders or rollers are carried on respective shafts designated with reference numerals 20, 22 and 24, respectively, and these are carried rotatingly on the framework in bushings that can be moved vertically thereon. The details of said assembly are not explained here in that they are well within the reach of a person skilled in the art.
  • Each shaft has an articulated connection, 26, 28, 30 with respective drive means for the drive unit, which in the example in the figure comprises a motor 32 connected to reduction gears 34, 36, 38.
  • a forming cylinder 14 is shown in greater detail in Figures 8, 9, 10.
  • each groove is defined, in a longitudinal direction, by surfaces, shaped like an arc of a circle, for example; that is to say, the cylinder 14 has the axially outermost parts 43 smooth and not grooved, preferably at the same level as the land parts 42.
  • the cylinder casing has a plurality of axially extending conduits 45, 46, for communicating with a vacuum source. Said conduits 45, 46 communicate through small holes 47, 48 with the grooves 41 and the lands 42.
  • suction or vacuum system is not further described because it can be of any known type.
  • the shape of the forming cylinder with grooves or lands defines the shape of the web produced.
  • the cylinder in Figure 8 for example, will produce a zigzag or fret shaped corrugated web.
  • a preferred drawing cylinder 16 for collaboration with the corrugated cylinder 14 is illustrated in Figures 6 to 11 and is part of this invention.
  • the drawing cylinder 16 comprises a plurality of cylindrical or tubular elements 52 having their axes parallel to the axis of the cylinder, supported and connected with cooling tubes 54 of a same length.
  • the circumferential distance between the elements 52 is correlated to the distance and the shape of the grooves 41 of the forming cylinder with which the drawing cylinder is to collaborate.
  • the length of the tubular elements 52 is about equal to the useful length of the grooves 41.
  • Figure 12 illustrates a forming cylinder 14a, with grooves 41a and lands 42a, for forming a wave shaped corrugated web.
  • the forming cylinder 14a has a shape in side view similar to that shown for the cylinder 14 in Figure 9, and has the same vacuum application system with small holes 47a and 48a.
  • a drawing cylinder 16a has a shape with lands 52a alternating with valleys 51a, of a shape and length correlated with the grooves 41a and the protrusions or lands 42a of the forming cylinder, and turns with the lands or protrusions 52a thereof alternating with the lands 42a of the forming cylinder.
  • a cylinder with tubes like that described previously could be used equally advantageously.
  • the cooling cylinder 18 can have a similar shape to that of the forming cylinder or can be smooth and serves to support and guide the web as it emerges.
  • thermoplastic material is extruded by a traditional extrusion head, referenced E in Figure 6.
  • the extrusion head (or alternatively any means feeding a web of thermoplastic material in suitable temperature conditions) is positioned in the vicinity of the upper surface of the forming cylinder 14, so that the force of gravity acting on the web collaborates to dispose said web close to the surface of the forming cylinder.
  • the extruded web thus settles on the uppermost surface of the cylinder 14 and is pulled against said surface by vacuum generated by the vacuum system and applied to the grooves 41 through the conduits 45, 46 and the holes 47, 48. It should be noted that vacuum application is made possible by the fact that the grooves 41 are closed at the ends, that is to say completely surrounded by the raised parts 42, 43.
  • Forming of the web is completed by the collaboration of the forming cylinder and the drawing cylinder 16 which rotate in opposite directions.
  • the lands of the drawing cylinder enter partially into the grooves 41 of the forming cylinder, further pushing the material against the surface thereof.
  • the web emerging from the nip between the forming cylinder and the drawing cylinder is shaped as illustrated in Figure 13, that is to say it has smooth longitudinal edges and a corrugated longitudinal part with corrugations having a transverse axis.
  • the web preferably then passes on the cylinder 18 which guides it to the outlet, possibly cooling it in a per se known manner.
  • the web undergoes trimming along the longitudinal edges, that is to say, the side parts without grooves which were formed on contact with the raised parts 43 of the cylinder 14 are cut away from the web. Scrap material can be recycled.
  • a product is obtained as shown in Figure 1, or in Figure 2 or in Figure 3 or 4 or other, according to the cylinder configuration used.
  • the drawing cylinder with peripheral tubes can be used to collaborate with a plurality of forming cylinders with different shapes.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
  • Laminated Bodies (AREA)

Abstract

L'invention concerne une bande continue comprenant une feuille de matériau thermoplastique ondulée ou nervurée, formée de manière que les ondulations ou les nervures présentent un axe transversal par rapport à direction d'extrusion ou d'avancement de la bande. On produit cette feuille ondulée en faisant passer la bande entre un cylindre de formage présentant des évidements connectés avec des moyens d'aspiration, et un cylindre d'emboutissage collaborant avec ce cylindre de formage. Cette feuille ondulée/nervurée peut être enroulée ce qui facilite son application, son stockage et son transport.
PCT/IT2001/000342 2001-05-25 2001-06-27 Procede et dispositif de production continue de feuilles ondulees/nervurees sous forme de bande enroulable ; bande thermoplastique enroulable a ondulations/nervures transversales WO2002094538A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
IL15900701A IL159007A0 (en) 2001-05-25 2001-06-27 Procedure and apparatus for continuous production of corrugated/undulated sheets in a windable web, windable thermoplastic web with transverse corrugations/undulations
EP01949897A EP1390191A1 (fr) 2001-05-25 2001-06-27 Procede et dispositif de production continue de feuilles ondulees/nervurees sous forme de bande enroulable ; bande thermoplastique enroulable a ondulations/nervures transversales

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI2001A001108 2001-05-25
IT2001MI001108A ITMI20011108A1 (it) 2001-05-25 2001-05-25 Procedimento e apparecchiatura di produzione in continuo di lastre ondulate/ grecate in nastro avvolgibile; nastro termoplastico avvolgibile

Publications (1)

Publication Number Publication Date
WO2002094538A1 true WO2002094538A1 (fr) 2002-11-28

Family

ID=11447756

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT2001/000342 WO2002094538A1 (fr) 2001-05-25 2001-06-27 Procede et dispositif de production continue de feuilles ondulees/nervurees sous forme de bande enroulable ; bande thermoplastique enroulable a ondulations/nervures transversales

Country Status (4)

Country Link
EP (1) EP1390191A1 (fr)
IL (1) IL159007A0 (fr)
IT (1) ITMI20011108A1 (fr)
WO (1) WO2002094538A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2850900A1 (fr) * 2003-02-07 2004-08-13 Habasit Italiana Procede et equipement pour profiler en continu un cable en matiere plastique selon un profil ondule
EP2592960A1 (fr) * 2010-07-16 2013-05-22 Gerald Rocha Bande pour éléments de fixation tactile dimensionnellement souple

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2429482A (en) * 1939-04-06 1947-10-21 Munters Carl Georg Method and means for the production of foil material
US2480316A (en) * 1944-11-11 1949-08-30 Mishawaka Rubber & Woolen Mfg Method of making laminated cushion material
US3837973A (en) * 1972-07-07 1974-09-24 Toyo Kagaku Kk Apparatus for continuously producing corrugated plastic board
US3854861A (en) * 1972-02-22 1974-12-17 Atomic Energy Authority Uk Rollers for shaping sheet material
US3969473A (en) * 1973-03-13 1976-07-13 Aktiebolaget Carl Munters Method of corrugating a web of thin thermoplastic material in a continuous production
US3982868A (en) * 1975-10-14 1976-09-28 The B. F. Goodrich Company Continuous mold thermo forming
DE2650163A1 (de) * 1975-11-11 1977-05-18 Wolfen Filmfab Veb Verfahren und vorrichtung zur kontinuierlichen herstellung von gewellten folien aus polyester
US4153663A (en) * 1975-08-08 1979-05-08 Rohm Gmbh Methods for bending stretched synthetic resin sheets
US4228209A (en) * 1978-06-06 1980-10-14 Chavannes Marc A Wire reinforced corrugated board and method and apparatus for making same
DE2916248A1 (de) * 1979-04-21 1980-10-30 Phoenix Ag Vorrichtung zum herstellen von wellenfoermigen wandteilen aus kunststoffplatten
US5188265A (en) * 1990-04-30 1993-02-23 Gilbert Capy Continuous sheet pleating device for making overlapping pleats and arrangements for making areas with no pleats and method of making pleats

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2429482A (en) * 1939-04-06 1947-10-21 Munters Carl Georg Method and means for the production of foil material
US2480316A (en) * 1944-11-11 1949-08-30 Mishawaka Rubber & Woolen Mfg Method of making laminated cushion material
US3854861A (en) * 1972-02-22 1974-12-17 Atomic Energy Authority Uk Rollers for shaping sheet material
US3837973A (en) * 1972-07-07 1974-09-24 Toyo Kagaku Kk Apparatus for continuously producing corrugated plastic board
US3969473A (en) * 1973-03-13 1976-07-13 Aktiebolaget Carl Munters Method of corrugating a web of thin thermoplastic material in a continuous production
US4153663A (en) * 1975-08-08 1979-05-08 Rohm Gmbh Methods for bending stretched synthetic resin sheets
US3982868A (en) * 1975-10-14 1976-09-28 The B. F. Goodrich Company Continuous mold thermo forming
DE2650163A1 (de) * 1975-11-11 1977-05-18 Wolfen Filmfab Veb Verfahren und vorrichtung zur kontinuierlichen herstellung von gewellten folien aus polyester
US4228209A (en) * 1978-06-06 1980-10-14 Chavannes Marc A Wire reinforced corrugated board and method and apparatus for making same
DE2916248A1 (de) * 1979-04-21 1980-10-30 Phoenix Ag Vorrichtung zum herstellen von wellenfoermigen wandteilen aus kunststoffplatten
US5188265A (en) * 1990-04-30 1993-02-23 Gilbert Capy Continuous sheet pleating device for making overlapping pleats and arrangements for making areas with no pleats and method of making pleats

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2850900A1 (fr) * 2003-02-07 2004-08-13 Habasit Italiana Procede et equipement pour profiler en continu un cable en matiere plastique selon un profil ondule
EP2592960A1 (fr) * 2010-07-16 2013-05-22 Gerald Rocha Bande pour éléments de fixation tactile dimensionnellement souple
EP2592960A4 (fr) * 2010-07-16 2015-02-18 Gerald Rocha Bande pour éléments de fixation tactile dimensionnellement souple
CN105105420A (zh) * 2010-07-16 2015-12-02 杰拉尔德·罗查 具有三维柔性的粘扣带
JP2016028768A (ja) * 2010-07-16 2016-03-03 ジェラルド・ロシャ 次元的に柔軟なタッチ・ファスナー・ストリップ
KR101605234B1 (ko) 2010-07-16 2016-03-21 제럴드 로샤 형태적으로 안정한 신축성 터치 파스너 스트립
KR101749876B1 (ko) 2010-07-16 2017-06-22 제럴드 로샤 형태적으로 안정한 신축성 터치 파스너 스트립
US9795194B2 (en) 2010-07-16 2017-10-24 Gerald ROCHA Dimensionally flexible touch fastener strip
CN105105420B (zh) * 2010-07-16 2019-03-22 杰拉尔德·罗查 具有三维柔性的粘扣带
US10405614B2 (en) 2010-07-16 2019-09-10 Gerald ROCHA Dimensionally flexible touch fastener strip
US11058186B2 (en) 2010-07-16 2021-07-13 Gerald ROCHA Dimensionally flexible touch fastener strip

Also Published As

Publication number Publication date
IL159007A0 (en) 2004-05-12
EP1390191A1 (fr) 2004-02-25
ITMI20011108A1 (it) 2002-11-25
ITMI20011108A0 (it) 2001-05-25

Similar Documents

Publication Publication Date Title
US8303744B2 (en) Method of making multilayer product having honeycomb core
RU2373057C2 (ru) Полузакрытая термопластичная сотовая структура, способ ее изготовления и оборудование для ее производства
AU2006269189B2 (en) Method and apparatus for making plastic drainage pipe reinforced by steel strips and the plastic drainage pipe reinforced by steel
US6913570B2 (en) Method and apparatus for producing a composite structural panel with a folded material core
EP1607209B1 (fr) Procede et dispositif permettant de former une rainure dans un element de type feuille
US7140859B2 (en) Apparatus for making a multi-walled tubular structure
US8454781B2 (en) Method of making multilayer product having honeycomb core of improved strength
US8747713B2 (en) Method and apparatus for manufacture of a polymer film, which is oriented under an angle to its longitudinal direction
US7758487B2 (en) Technology for continuous folding of sheet materials into a honeycomb-like configuration
WO2006138216A1 (fr) Tube sandwich enroulé avec enveloppe ondulée
JPH05254083A (ja) 多層フィルム複合材料を製造するための装置及び方法
US5792487A (en) Corrugated plastic wall panels
US4878976A (en) Method for continuously manufacturing synthetic resin tube
WO2002094538A1 (fr) Procede et dispositif de production continue de feuilles ondulees/nervurees sous forme de bande enroulable ; bande thermoplastique enroulable a ondulations/nervures transversales
US7018579B1 (en) Manufacturing system and process
WO2000009317A1 (fr) Structure a double paroi pour mandrin nervure
US3382133A (en) Means for corrugating webs transversely
US8308885B2 (en) Method of making multi-layered product having spaced honeycomb core sections
CN110612204B (zh) 用于制备纤维材料的连续幅材的方法和设备
EP4282640A1 (fr) Nid d'abeille thermoplastique à parois cellulaires multicouches, leur procédé de production et équipement nécessaire à leur production
KR101755209B1 (ko) 폐섬유 융합에 의한 판재 연속 제조장치
CN110641098A (zh) 一种可连续化生产蜂窝夹芯及夹芯复合板的装置及方法
EP4275877A1 (fr) Structure en nid d'abeilles dotée de parois cellulaires améliorées, son procédé de production et équipement
JPS58132323A (ja) コルゲ−テイング装置
EP0627299B1 (fr) Procédé pour thermoformer de matière thermoplastique expansé et de matière thermoplastique expansé et réticulé en feuilles ou bandes

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT TZ UA UG US UZ VN YU ZA ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 159007

Country of ref document: IL

WWE Wipo information: entry into national phase

Ref document number: 2001949897

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: 2001949897

Country of ref document: EP

REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

NENP Non-entry into the national phase

Ref country code: JP

WWW Wipo information: withdrawn in national office

Ref document number: 2001949897

Country of ref document: EP