DE1939565B2 - METHOD AND DEVICE FOR TREATMENT OF THE SURFACE OF PLASTIC FOAM SHEETS - Google Patents
METHOD AND DEVICE FOR TREATMENT OF THE SURFACE OF PLASTIC FOAM SHEETSInfo
- Publication number
- DE1939565B2 DE1939565B2 DE19691939565 DE1939565A DE1939565B2 DE 1939565 B2 DE1939565 B2 DE 1939565B2 DE 19691939565 DE19691939565 DE 19691939565 DE 1939565 A DE1939565 A DE 1939565A DE 1939565 B2 DE1939565 B2 DE 1939565B2
- Authority
- DE
- Germany
- Prior art keywords
- roller
- web
- foam
- rollers
- surface layer
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims 8
- 239000002984 plastic foam Substances 0.000 title claims 4
- 239000006260 foam Substances 0.000 claims description 33
- 239000002344 surface layer Substances 0.000 claims description 16
- 239000007789 gas Substances 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 7
- 239000010410 layer Substances 0.000 claims description 5
- 230000001070 adhesive effect Effects 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 4
- 229920003023 plastic Polymers 0.000 claims description 4
- 238000000354 decomposition reaction Methods 0.000 claims description 3
- 239000004753 textile Substances 0.000 claims description 3
- 239000000155 melt Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 claims 4
- 239000000853 adhesive Substances 0.000 claims 2
- 239000004744 fabric Substances 0.000 claims 2
- 238000010030 laminating Methods 0.000 claims 2
- 238000002844 melting Methods 0.000 claims 2
- 230000008018 melting Effects 0.000 claims 2
- 229920005830 Polyurethane Foam Polymers 0.000 claims 1
- 239000000654 additive Substances 0.000 claims 1
- 230000000996 additive effect Effects 0.000 claims 1
- 238000004026 adhesive bonding Methods 0.000 claims 1
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 239000002985 plastic film Substances 0.000 claims 1
- 229920002635 polyurethane Polymers 0.000 claims 1
- 239000004814 polyurethane Substances 0.000 claims 1
- 239000011496 polyurethane foam Substances 0.000 claims 1
- 229920001169 thermoplastic Polymers 0.000 description 4
- 239000004416 thermosoftening plastic Substances 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000005611 electricity Effects 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- 239000006261 foam material Substances 0.000 description 1
- 238000010409 ironing Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
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
- B29C63/48—Preparation of the surfaces
-
- 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
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/56—After-treatment of articles, e.g. for altering the shape
- B29C44/5627—After-treatment of articles, e.g. for altering the shape by mechanical deformation, e.g. crushing, embossing, stretching
- B29C44/5636—After-treatment of articles, e.g. for altering the shape by mechanical deformation, e.g. crushing, embossing, stretching with the addition of heat
-
- 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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
-
- 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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
- B29C65/24—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools characterised by the means for heating the tool
- B29C65/30—Electrical means
- B29C65/305—Electrical means involving the use of cartridge heaters
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
- B29C66/112—Single lapped joints
- B29C66/1122—Single lap to lap joints, i.e. overlap joints
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/303—Particular design of joint configurations the joint involving an anchoring effect
- B29C66/3032—Particular design of joint configurations the joint involving an anchoring effect making use of protrusions or cavities belonging to at least one of the parts to be joined
- B29C66/30325—Particular design of joint configurations the joint involving an anchoring effect making use of protrusions or cavities belonging to at least one of the parts to be joined making use of cavities belonging to at least one of the parts to be joined
- B29C66/30326—Particular design of joint configurations the joint involving an anchoring effect making use of protrusions or cavities belonging to at least one of the parts to be joined making use of cavities belonging to at least one of the parts to be joined in the form of porosity
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
- B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
- B29C66/45—Joining of substantially the whole surface of the articles
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
- B29C66/822—Transmission mechanisms
- B29C66/8221—Scissor or lever mechanisms, i.e. involving a pivot point
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
- B29C66/822—Transmission mechanisms
- B29C66/8223—Worm or spindle mechanisms
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
- B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
- B29C66/8341—Roller, cylinder or drum types; Band or belt types; Ball types
- B29C66/83411—Roller, cylinder or drum types
- B29C66/83413—Roller, cylinder or drum types cooperating rollers, cylinders or drums
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
- B29C66/727—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being porous, e.g. foam
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
- Laminated Bodies (AREA)
- Treatment Of Fiber Materials (AREA)
Description
scheibe 16 in der ebenfalls eingezeichneten Pfeilrichtung angetrieben. Die Oberwalze 14 wird in den Ständern 20 von Kugellagern 18 getragen, die mittels Gewindespindeln 22 von einem Handrad 25 aus, das auf einer sich über die ganze Breite der Einrichtung erstreckenden Welle 24 sitzt, höhenverstellbar sind, so daß der Abstand der Walzen 12 und 14 -oneinander entsprechend der Dicke der Schaumstoffbahn B beliebig einstellbar ist. Die Unterwalze 12 kann auch mit einer Federung kombiniert werden, durch die sie elastisch gegen die Obei walze 14 gedrückt wird.Disk 16 driven in the arrow direction also shown. The upper roller 14 is supported in the uprights 20 by ball bearings 18, which can be adjusted in height by means of threaded spindles 22 from a handwheel 25 which sits on a shaft 24 extending over the entire width of the device, so that the distance between the rollers 12 and 14 -can be adjusted as desired according to the thickness of the foam sheet B. The lower roller 12 can also be combined with a suspension through which it is pressed elastically against the roller 14 Obei.
Die Oberwalze 14 enthält in ihrem Innern elektrische Widerstandsstäbe 21, die an mit der Walze drehbare Kollektorringe 23 angeschlossen sind, über die sie in an sich bekannter Weise mit Strom gespeist werden. Die Widerstandsstäbe 21 liegen verhältnismäßig dicht unter dem Mantel der Oberwalze und geben ihre Wärme an diesen durch Strahlung ab. Sie sind so ausgebildet, daß der Mantel der Oberwalze je nach der Art des zu behandelnden Schaumstoffes auf eine Temperatur von etwa 350 bis 500° C erwärmt werden kann, also auf eine Temperatur, bei der die Oberflächenschicht der Schaumstoffbahn B nicht nur geschmolzen, sondern chemisch zersetzt wird, wobei die auf der Oberseite der Schaumstoffbahn verbleibende Zersetzungsschicht in an sich bekannter Weise stark klebende Eigenschaften aufweist, während bei der besagten Zersetzung Giue entweichen, die sich an dem Mantel der Oberwalze entzünden und beiderseits ihres Mantels mit heller Flamme verbrennen, ohne mit der Schaumstoftbahn in Berührung zu kommen. Die Flammen, die die Oberwalze beiderseits umhüllen, tragen wesentlich dazu bei, die gewünschte Temperatur der Oberwalze aufrechtzuerhalten, wobei in gewissen Fällen die Oberseite der Oberwalze auch noch von einer Haube 27 umgeben sein kann, die nicht dargestellte Ultrarotlampen enthält, weiche ebenfalls zur Erwärmung des Mantels der Oberwalze beitragen. Die Oberfläche der Schaumstoffbahn wird durch die Oberwalze vorzugsweise derart stark angeschmolzen bzw. zersetzt, daß die offenen Poren durch die geschmolzene Masse ausgefüllt werden.The upper roller 14 contains in its interior electrical resistance rods 21 which are connected to collector rings 23 rotatable with the roller, via which they are fed with electricity in a manner known per se. The resistance bars 21 are relatively close under the jacket of the top roller and give off their heat to this by radiation. They are designed so that the jacket of the top roller can be heated to a temperature of about 350 to 500 ° C, depending on the type of foam to be treated, i.e. to a temperature at which the surface layer of the foam web B is not only melted, but chemically is decomposed, the decomposition layer remaining on the upper side of the foam sheet has strongly adhesive properties in a manner known per se, while during said decomposition Giue escape, which ignite on the jacket of the top roller and burn with a bright flame on both sides of its jacket without the Foam web to come into contact. The flames that envelop the top roller on both sides make a significant contribution to maintaining the desired temperature of the top roller, and in certain cases the top of the top roller can also be surrounded by a hood 27, which contains ultrared lamps (not shown), which are also used to heat the Contribute to the jacket of the top roller. The surface of the foam web is preferably melted or decomposed to such an extent by the top roller that the open pores are filled by the melted mass.
Hinter dem durch die Walzen 12 und 14 gebildeten Walzenspalt ist eine zusätzliche Walze 32 derart angeordnet, daß sie in einem gewissen Abstand hinter dem Walzenspalt mit der Oberfläche der Unterwalze 12 in und außer Berührung gebracht werden kann. Die Walze 32 wird zu diesem Zweck von einem mit einem Handgriff 44 versehenen Schwenkhebel 30 getragen, der gelenkig mit einem Arm 26 des Maschinenrahmens verbunden ist. Der Schwenkhebel 30 trägt außerdem zwei Führungsrolbn 34 und 36 und ist in einer bogenförmigen Schlitzführung 38, die von einem Arm 28 des Maschinenrahmens getragen wird und in die ein durch ein Handrad 42 steuerbarer Spannbolzen 40 hineinragt, in verschiedenen Abstandslagen der Walze 32 von der Unterwalze 12 feststellbar. Behind the nip formed by the rollers 12 and 14 is an additional roller 32 of this type arranged that they are at a certain distance behind the nip with the surface of the lower roll 12 can be brought into and out of contact. The roller 32 is used for this purpose by a a handle 44 provided pivot lever 30 carried, the articulated with an arm 26 of the machine frame connected is. The pivot lever 30 also carries two guide rollers 34 and 36 and is in an arcuate slot guide 38 carried by an arm 28 of the machine frame and into which a clamping bolt 40, controllable by a handwheel 42, protrudes, in different spaced positions of the roller 32 can be fixed by the lower roller 12.
Die Lage der Walze 32 zu der Unterwalze 12 und der Oberwalze 14 ist derart gewählt, daß, wenn die Walze 32 in Berührung mit der Unterwalze 12 ist, ihr Umfang einen hinreichend großen Abstand von der Oberwalze hat, damit die die Obenvalze umhüllenden Flammen der aus der Schauinstuffbahn B entweichenden Abgase durch ihre Temperatur nicht eine über die Führungsrollen 36 und 34 der Walze 32 zugeleitete Bahn, beispielsweise eine textile Bahn, zu schädigen vermögen, gleichwohl aber der Abstand der Berührungsstelle der Walze 32 mit der Unterwalze 12 möglichst dicht hinter dem Walzenspalt liegt, so daß die in Folge der thermoplastischen Einwirkung der Oberwalze 14 auf die Oberseite der Schaumstoffbahn B im Walzenspalt entstehende klebrige Oberflächenschicht der Schaumstoffbahn ihre klebenden Eigenschaften bis zum Aufwalzen der Bahn C noch gut beibehalten hat.The position of the roller 32 in relation to the lower roller 12 and the upper roller 14 is selected such that, when the roller 32 is in contact with the lower roller 12, its circumference has a sufficiently large distance from the upper roller so that the flames surrounding the upper roller are removed The temperature of the exhaust gases escaping from the Schauinstuff web B is not able to damage a web fed via the guide rollers 36 and 34 of the roll 32, for example a textile web, although the distance between the point of contact between the roll 32 and the lower roll 12 is as close as possible behind the nip so that the sticky surface layer of the foam web resulting from the thermoplastic action of the top roller 14 on the upper side of the foam web B in the nip has retained its adhesive properties until the web C is rolled on.
Die an der Berührungsstelle der Walze 32 mit der Unterwalze 12 fest auf die Oberfläche der Schaumstoffbahn B aufgedrückte Bahn C läuft zusammen mit dieser über eine bei 48 vom Maschinenrahmen getragenen Führungsrolle 46. The web C, which is firmly pressed onto the surface of the foam web B at the point of contact between the roll 32 and the lower roll 12, runs together with the latter over a guide roll 46 carried by the machine frame at 48.
Die vorbezeichnete Arbeitsweise der Einrichtung isi in p i g. 3 schematisch veranschaulicht.The aforementioned mode of operation of the facility is in p i g. 3 illustrates schematically.
Wenn auf eine Schaumstoffbahn B ohne direkte Erhitzung der Oberfläche dieser Bahn eine Schicht aus einem thermoplastischen Werkstoff aufgeschmolzen werden soll, so wird, wie dies in F i g. 4 veranschaulicht ist, die Walze 32 durch Betätigung des Schwenkhebels 30 von der Unterwalze 12 entfernt und eine thermoplastische Bahn C zusammen mit der Schaum-Stoffbahn B in den Spalt der Walzen 12, 14 eingeführt. Die beheizte Oberwalze 14 schmilzt in diesem Fall die zusätzlich in den Walzenspalt eingeführte thermoplastische Bahn C, deren Masse sich fest mit der Schaumstoffbahn B verankert und eine die Poren der Schaumstoffbahn völlig bedeckende Oberflächenschicht bildet. Die mit dieser Oberflächenschicht versehene Schaumstoffbahn wird über die Führungsrolle 46 weggeführt.If a layer of a thermoplastic material is to be melted onto a foam web B without direct heating of the surface of this web, then, as shown in FIG. 4 is illustrated, the roller 32 is removed from the lower roller 12 by actuation of the pivot lever 30 and a thermoplastic web C is introduced into the nip of the rollers 12, 14 together with the foam material web B. In this case, the heated top roller 14 melts the thermoplastic web C, which is additionally introduced into the nip, the mass of which is firmly anchored to the foam web B and forms a surface layer that completely covers the pores of the foam web. The foam web provided with this surface layer is guided away via the guide roller 46.
Soll die Oberfläche der Schaumstoffbahn verledert werden, so wird, wie dies in F i g. 5 dargestellt ist, die Walze 32 ebenfalls von der Unterwalze 12 weggerückt. Durch die heiße Oberwalze 14 wird die Oberfläche der Schaumstoffbahn im Walzenspalt angeschmolzen und auf die angeschmolzene Oberflächenschicht wird durch die Führungsrolle 46, die in diesem Fall vorzugsweise einen beschleunigten Antrieb erhält, eine bügelnde Diuckwirkung ausgeübt, durch die die noch plastische Masse der Oberflächenschicht der Schaumstoffbahn verstrichen und hierdurch auf der Schaumstoffbahn ein Verlederungseffekt erzielt wird.If the surface of the foam web is to be leathered, as shown in FIG. 5 is shown, the Roller 32 also moved away from lower roller 12. By the hot top roller 14 is the Surface of the foam sheet melted in the roller gap and onto the melted surface layer is by the guide roller 46, which in this case preferably has an accelerated drive receives, an ironing pressure exerted, through which the still plastic mass of the surface layer the foam sheet elapsed and thereby a leathering effect on the foam sheet is achieved.
Durch Profilieren der Obenvalze 14, der Andrückwalze 32 bzw. der Führungs- bzw. Verlederungswalze 46 lassen sich gleichzeitig 'mit dem Verledern, Beschichten bzw. Kaschieren gute Prägeeffekte auf der verlederten Oberfläche der Schaumstoffbahn, auf der mit einer thermoplastischen Beschichtung versehenen Fläche der Schaumstoffbahn bzw. auf einer auf die Schaumstoffbahn aufkaschierten Bahn, beispielsweise einer textlien Bahn, erzielen.By profiling the top roller 14, the pressure roller 32 or the guide or leathering roller 46, good embossing effects can be achieved on the at the same time as the leathering, coating or lamination leathered surface of the foam sheet, on which is provided with a thermoplastic coating Area of the foam web or on a web laminated onto the foam web, for example a textile web.
Hierzu 3 Blatt ZeichnungenFor this purpose 3 sheets of drawings
Claims (3)
beheizbar ist, und die mit der beheizten Walze in Der Erfindung liegt die Aufgabe zugrunde, die beBerührung kommende Oberflächenschicht der kannten Verfahren dahingehend zu verbessern, daß Bahn geschmolzen wird, dadurch gekenn- io selbst eine Schaumstoffbahn extrem geringer Dicke zeichnet, daß die obere Walze auf eine Tem- auf der Oberflächenschicht der Schaumstoffbahn mit peratur erhitzt wird, bei der die Oberflächen- einer aufgeschmolzenen Kunststoffschicht versehen. schicht des Kunststoffschaumes unter Bildung verledert oder mit einer anderen Bahn kaschiert und brennbarer Gase zersetzt wird, die sich an der gegebenenfalls gleichzeitig geprägt werden kann.
Walze entzünden und mit offentr Flamme unter 15 Diese Aufgabe wird gemäß der Erfindung dadurch zusätzlicher Erhitzung der Walzenoberfläche gelöst, daß die obere Walze auf eine Temperatur erbrennen, hitzt wird, bei der die Oberflächenschicht des Kunst-1. Method for treating the surface cases, the surface layer to be melted is supplied by strips of plastic foam, in particular heat by external energy. In the first case, polyurethane foam, in which the plastic web \ DT-OS 15 04601) is guided by electrical current and between rollers, of which the upper second case (DT-AS 11 28 123) by a gas.
The object of the invention is to improve the surface layer of the known method that comes into contact so that the web is melted a temperature is heated on the surface layer of the foam sheet with temperature at which the surface is provided with a melted plastic layer. layer of the plastic foam is leathered to form or laminated with another web and combustible gases are decomposed, which can possibly be embossed at the same time.
Ignite the roller and with an open flame below 15 This object is achieved according to the invention by additional heating of the roller surface that the upper roller burns to a temperature at which the surface layer of the synthetic
In der Zeichnung ist eine Vorrichtung zur Durch-the lower roller can be cooled.
The drawing shows a device for
aus Kunststoffschaum, insbesondere Polyurethan- 45 Fig. 1 den Aufbau der Vorrichtung in Seitenschaum, bei dem die Kunststoffbahn zwischen Walzen ansicht,The invention relates to a method and a demonstration of the method according to the invention, as shown in the table for treating the surface of webs. In this drawing shows
made of plastic foam, in particular polyurethane 45 Fig. 1 the structure of the device in side foam, in which the plastic sheet between rollers view,
geprägt werden. 55 F i g. 4 die Lage der in der Vorrichtung enthaltenenMelting the surface layer of the web can take 50 seconds. 3 the location of the different purposes contained in the device are used. The rollers and guide rollers to each other when the surface is melted can either be coated with a foam web with a web of another material, for example with a material laminated and, if desired, at the same time a textile web,
be embossed. 55 Fig. 4 the location of the included in the device
bringen einer Kaschierfolie eine feste Verbindung Die Vorrichtung umfaßt einen Maschinenrahmenheats that is sufficient to make the surface layer of the web 60 rollers and guide rollers sticky to one another during the gluing process, in order to ensure that the surface of the foam web is subsequently exposed.
bring a liner to a firm connection. The device comprises a machine frame
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE754356D BE754356A (en) | 1969-08-04 | DEVICE FOR TREATING THE SURFACE OF BEDS OF EXPANDED SYNTHETIC MATERIAL | |
DE19691939565 DE1939565C3 (en) | 1969-08-04 | Method and device for treating the surface of sheets of plastic foam | |
LU61449D LU61449A1 (en) | 1969-08-04 | 1970-07-30 | |
NL7011456A NL7011456A (en) | 1969-08-04 | 1970-08-03 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19691939565 DE1939565C3 (en) | 1969-08-04 | Method and device for treating the surface of sheets of plastic foam |
Publications (3)
Publication Number | Publication Date |
---|---|
DE1939565A1 DE1939565A1 (en) | 1971-02-11 |
DE1939565B2 true DE1939565B2 (en) | 1976-02-12 |
DE1939565C3 DE1939565C3 (en) | 1976-09-23 |
Family
ID=
Also Published As
Publication number | Publication date |
---|---|
BE754356A (en) | 1971-01-18 |
DE1939565A1 (en) | 1971-02-11 |
NL7011456A (en) | 1971-02-08 |
LU61449A1 (en) | 1970-10-05 |
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Legal Events
Date | Code | Title | Description |
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C3 | Grant after two publication steps (3rd publication) | ||
E77 | Valid patent as to the heymanns-index 1977 | ||
EHJ | Ceased/non-payment of the annual fee |