DE1939565A1 - Surface treatment of expanded plastics - sheets - Google Patents
Surface treatment of expanded plastics - sheetsInfo
- Publication number
- DE1939565A1 DE1939565A1 DE19691939565 DE1939565A DE1939565A1 DE 1939565 A1 DE1939565 A1 DE 1939565A1 DE 19691939565 DE19691939565 DE 19691939565 DE 1939565 A DE1939565 A DE 1939565A DE 1939565 A1 DE1939565 A1 DE 1939565A1
- Authority
- DE
- Germany
- Prior art keywords
- roller
- web
- delimiting
- gap
- foam
- 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
- 239000004033 plastic Substances 0.000 title abstract description 7
- 229920003023 plastic Polymers 0.000 title abstract description 7
- 238000004381 surface treatment Methods 0.000 title abstract 2
- 239000002344 surface layer Substances 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims abstract description 5
- 239000000155 melt Substances 0.000 claims abstract description 4
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 3
- 239000006260 foam Substances 0.000 claims description 37
- 238000010438 heat treatment Methods 0.000 claims description 7
- 239000004753 textile Substances 0.000 claims description 7
- 230000005611 electricity Effects 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000004049 embossing Methods 0.000 claims description 2
- 239000002984 plastic foam Substances 0.000 claims description 2
- 240000007594 Oryza sativa Species 0.000 claims 1
- 235000007164 Oryza sativa Nutrition 0.000 claims 1
- 235000009566 rice Nutrition 0.000 claims 1
- 229920000728 polyester Polymers 0.000 abstract description 2
- 229920002635 polyurethane Polymers 0.000 abstract description 2
- 239000004814 polyurethane Substances 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 6
- 238000000354 decomposition reaction Methods 0.000 description 4
- 239000010410 layer Substances 0.000 description 4
- 229920001169 thermoplastic Polymers 0.000 description 4
- 239000004416 thermosoftening plastic Substances 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000010409 ironing Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 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)
Abstract
Description
Einrichtung zum Behandeln der Oberfläche von Bahnen aus Kunststoffschaum Die Erfindung betrifft eine Einrichtung zum Behandeln der Oberfläche von Bahnen aug geschäumten Polyurethanen, Polyestern und ähnlichen Kunststoffen und bezweckt die Schaffung einer Einrichtun, auf der Schaumstoffbahnen der besagten Art, selbst solche in extrem geringer Dicks, wahlweise auf ihrer Oberfläche verledert, mit einer aufgeschmolzenen Kunststoffschicht versehen oder mit 3anen aus textilen Werkstoffen od. dgl. kaschiert und gewünschtenfalls gleichzeitig geprägt werden können. Device for treating the surface of sheets of plastic foam The invention relates to a device for treating the surface of webs made of foamed polyurethanes, polyesters and similar plastics and intended the creation of a facility, on the foam sheets of the said type, itself those in extremely small thicknesses, optionally with a leather finish on their surface, with a provided with a melted plastic layer or with 3anes made of textile materials or the like can be laminated and, if desired, embossed at the same time.
Die Erfindung sieht zu diesem Zweck zwei in einem Maschinenrahmen übereinander drehbar gelagerte, einen waagerachten Walzenspalt bildende Walzen, von denen die über der unteren angetriebenen Walze liegende, in ihrer Höhenlage verstellbare Oberwalze durch in sie eingebettete Heizelemente auf eine Temperatur erhitzbar ist, bei der die mit ihr in Berührung kommende Oberflächenschicht der durch den Walzenspalt hindurchgeführten Schaumstoffbahn schmilzt bzw. sich zersetzt, und ferner eine unter einem Winkel von etwa 45° hinter dem Walzenspalt gegen die diesen begrezende Unterwalze drückbare Walze mit dieser gegebenenfalls vorgeschalteten Führungsrollen für eine auf die Schaumstoffbahn aufzukaschierende Bahn aus einem anderen Werkstoff vor. Hierbei sind in die den Walzenspalt begrenzende Oberwalze gemäß der Erfindung vorzugseweise elektrische Heizelemente eingebaut, durch die der Mantel der Oberwalze auf eine Temperatur erhitzbar ist, bei der sich die mit dem Walzenmantel in Berührung kommende Oberflächenschicht der Schaumstoffbahn unter Gasbildung zersetzt, wobei das entweichende Gas durch die Walzentemperatur entzündet wird und beiderseits der Oberwalze mit offener Flamme brennt, während der Durchmesser der hinter dem Walzenspalt gegen die Unterwalze drückbaren zusätzlichen Walze und deren Abstand von der Oberwalze derart bemessen sind, daß eine über die besagte zusätzliche Walze geführte Bahn (Textil bahn od. dgl.) außerhalb des Bereiches der beiderseits der Oberwalze brennenden Gasflammen ist.For this purpose, the invention sees two in one machine frame Rollers rotatably mounted on top of each other, forming a horizontal roller gap, of which the one above the lower driven roller, in its height position adjustable top roller to a temperature by means of heating elements embedded in it is heatable, in which the coming into contact with her surface layer of Foam web passed through the nip melts or decomposes, and also one at an angle of about 45 ° behind the nip against the This lower roller that limits this pressable roller with this possibly upstream Guide rollers for a web made of one to be laminated onto the foam web other material. Here are in the upper roller delimiting the roller gap according to the invention preferably built-in electrical heating elements through which the jacket of the top roller can be heated to a temperature at which the with the surface layer of the foam web coming into contact with the roll shell Gas formation decomposes, the escaping gas being ignited by the roller temperature is and burns on both sides of the top roller with an open flame, while the diameter the additional roller and which can be pressed against the lower roller behind the roller gap whose distance from the top roller is dimensioned in such a way that that one about said additional roller guided web (textile web od. Like.) Outside of the Area of the gas flames burning on both sides of the top roller.
Die Flammen des bei der Zersetzung des Schaumstoffes im Kalanderwalzenspalt entstehenden Gases kommen mit der Schaumstoffbahn nicht in Berührung. Die mit dem Mantel der Oberwalze in Berührung kommende Oberflächenschicht der Schaumstoffbahn wird vielmehr nur durch die Temperatur des Mantel der Oberwalze, die je nach der Art des zu behandelnden Schaumstoffes e 350 bis 5000 C beträgt, geschmolzen bsw. zersetzt0 Die Flammen umhüllen Jedoch einen großen Bereich des Mantels der Oberwalze, so daß diese während ihres Umlaufes nicht nur keinen Temperaturverlust erleidet, sodern durch die Flammen auch noch zusätzlich erwärmt wird.The flames of the decomposition of the foam in the calender nip The resulting gas does not come into contact with the foam sheet. The one with the Shell of the top roller coming into contact with the surface layer of the foam web is rather only by the temperature of the jacket of the top roller, which depends on the Type of foam to be treated e is 350 to 5000 C, bsw melted. decomposed0 However, the flames envelop a large area of the mantle of the top roller, so that this not only does not suffer any temperature loss during its circulation, but the flames also heat it up.
Wird für die Zersetzung der Oberfläche der Schaumstoffbahn eine besonders hohe Temperatur der Obeialze benötigt, so kann diese auf ihrer Oberseite von einer Ultrarotlampen enthaltenden Raute umgeben sein.Is a special one for the decomposition of the surface of the foam sheet If the Obeialze requires a high temperature, this can be on its upper side by a Be surrounded diamond containing ultrared lamps.
Die im Innern der den Walzenspalt begrenzenden Oberwalze angeordneten elektrischen Heizelemente bestehen gemäß der Erfindung vorzsweise aus elektrischen Widerstandsstäben, beispielsweise aus einer Nicckellegierung, die in der Nähe des Walzenmantels liegen und ihre Wärme durch Strahlung in diesen abgeben, und die über mit der Oberwalze umlaufende Kollektorringe mit Strom gespeist werden Die den Walzenspalt begrenzende Unterwalze ist vorzugsweise kühlbar ausgebildet und die gegen die Unterwalze drückbare zusätzliche Walze wird von einem vom Maschinenrahmen getragenen und in verschiedenen Schwenkstellungen feststellbaren Schwenkarm getragen, wobei der gleiche Schwenkarm auch die zum Zuführen beispielsweise einer textilen Bahn benötigten Führungsrollen trägt.The upper roller arranged inside the roller gap delimiting the roller gap According to the invention, electrical heating elements preferably consist of electrical ones Resistance rods, for example made of a Niccke alloy, which are located in the vicinity of the Roll mantle lie and give off their heat through radiation in these, and the over with the top roller rotating collector rings are fed with electricity the The lower roller delimiting the roller gap is preferably designed to be coolable and the additional roller that can be pressed against the lower roller is supported by one of the machine frame carried swivel arm that can be locked in various swivel positions, the same swivel arm also used for feeding a textile, for example Track required guide rollers.
In der Zeichnung ist eine Einrichtung gemäß der Erfindung in einem Ausführungsbeispiel schematisch dargestellt, und zwar zeigen: Fig. 1 den Aufbau der Einrichtung in Seitenansicht; Fig. 2 die den Walzenspalt begrenzende Oberwalse mit den in sie eingebrachten elektrischen Widerstandselementen; Fig. 3 die Lage der in der Einrichtung enthaltenen Wa1-regen und Führungsrollen zueinander beim Beschichten einer Schaumstoffbahn mit einer Bahn aus einen anderen Werkstoff, beispielsweise mit einer textilen Bahn; Fig. 4 die Lage der in der Einrichtung enthaltenen Walzen und Ptlhrungsrollen zueinander beim Aufschmelzen einer Kunststoffschicht auf die Oberfläche der Schaumstoffbahn und Fig. 5 die Lage der in der Einrichtung enthaltenen Walzen und Führungsrollen zueinander beim Verledern der Oberfläche der Schaumstoffbahn.In the drawing a device according to the invention is in one Embodiment shown schematically, namely show: Fig. 1 the structure the device in side view; 2 shows the upper roll delimiting the nip with the electrical resistance elements introduced into them; Fig. 3 shows the situation The Wa1-rain and guide rollers contained in the device contribute to each other Coating a sheet of foam with a sheet of another material, for example with a textile web; 4 shows the position of the rollers contained in the device and guide rollers to each other when melting a Plastic layer on the surface of the foam sheet and FIG. 5 the position of the in the device contained rollers and guide rollers to each other when leathering the surface of the Foam sheet.
Die Einrichtung umfaßt einen Maschinenrahmen 10, zwischen dessen aufrechtstehenden Ständern 20 zwei Walzen t2 und 14 gelagert sind, die zwischen sich einen Wa1enspalt einschließen, in den die zu behandelnde Schaumstoffbahn B in der eingezeichneten Pfeilrichtung eingeführt wird. Die Unterwalze ist ortsfest drehbar gelagert und wird über eine Riemenscheibe 16 in der ebenfalls eingezeichneten Pfeilrichtung angetrieben. Die Oberwalze 14 wird in den Ständern 20 von Kugellagern 18 getragen, die mittels Gewindeapindeln 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 voneinander entsprechend der Diode der Schaumstoffbahn B beliebig einstellbar ist. Die Unterwalze 12 kann auch mit einer Federung kombiniert werden, durch die sie elastisch gegen die Oberwalze 14 gedrückt wird.The device comprises a machine frame 10, between its upright Stands 20 two rollers t2 and 14 are mounted, which between them a Wa1enspalt include, in which the foam web to be treated B in the drawn Direction of arrow is inserted. The lower roller is rotatably mounted and fixed in place is driven by a pulley 16 in the direction of the arrow also shown. The top roller 14 is supported in the stands 20 by ball bearings 18, which means Threaded screws 22 from a handwheel 25, which extends over the entire width the device extending shaft 24 sits, are adjustable in height, so that the Distance of the rollers 12 and 14 from one another according to the diode of the foam web B is freely adjustable. The lower roller 12 can also be combined with a suspension by which it is pressed elastically against the top roller 14.
Die Oberwalze 14 ist kühlbar auq.bildet und enthält in ihrem Innern elektrische Widerstandsstäbe 21, die an mit der Walze drehbare Kollektorringe 25 angeschlossen sind, er die sie in an sich bekannter Weise mit Strom gespeist werden. Die Widerstandsstäbe 21 liegen verhiltnismäßig dicht unter dem Mantel der Oberwalze und geben ihre Wärme an dies durch Strahlung ab. Sie sind so ausgebildet, daß der Mantel der Oberwalze Je e 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 3 nicht nur geschmolzen, sondern chemisch zersetzt wird, wobei die auf der Oberseite der Schaumstoffbahn ver bleibende Zersetzungsschicht in an sich bekannter Weise stark klebende Eigenschaften aufweist, während bei der besagten Zersetzung Gase entweichen, die sich an dem Mantel. der Oberwalze entzünden und beiderseits ihres Mantels mit heller Flamme verbrennen, ohne mit der Schaumstoffbahn 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 ungeben sein kann, die nicht dargestellte Ultrarotlampen enthält, welche ebenfalls zur Erwärmung des Mantels der Oberwalze beitragen. Die Oberfläche Schaumstoffbahn wird durch die Oberwalze vorzugsweise derart stark angeschmolzen bzw. zersetzt, daß die offenen Poren durch die geschmolzene Masse ausgefüllt werden.The top roller 14 is also coolable and contains inside electrical resistance bars 21 that are attached to the roller rotatable collector rings 25 are connected, he fed them in a known manner with electricity will. The resistance bars 21 are relatively close under the jacket of the Upper roller and give off their heat to this through radiation. You are trained that the jacket of the top roller depends on the type of foam to be treated can be heated to a temperature of around 350 to 500 ° C, i.e. to a temperature in which the surface layer of the foam sheet 3 is not only melted, but is chemically decomposed, the ver remaining on the top of the foam sheet The decomposition layer has strong adhesive properties in a manner known per se, during the said decomposition gases escape, which are attached to the jacket. the Ignite the top roller and burn it with a bright flame on both sides of its mantle, without coming into contact with the foam sheet. The flames that hit the top roller Envelop on both sides, contribute significantly to the desired temperature of the Maintain top roller, in certain cases the top of the top roller can also be uneven from a hood 27, the ultrared lamps, not shown contains, which also contribute to the heating of the shell of the top roller. the The surface of the foam web is preferably melted to such an extent by the top roller or decomposed so that the open pores are filled by the molten 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 t einem Handgriff 44 versehenen Schwenkhebel 30 getragene der gelenkig mit einem Arm 26 des Maschinenrahmens verbunden ist. Der Schwenkhebel 30 trägt außerdem zwei Führungsrollen 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 rollers 12 and 14 is one additional roller 32 arranged so that they are at a certain distance behind brought the nip into and out of contact with the surface of the lower roll 12 can be. The roller 32 is provided with a handle 44 for this purpose The pivot lever 30 is supported and is articulated to an arm 26 of the machine frame is. The pivot lever 30 also carries two guide rollers 34 and 36 and is in an arcuate slot guide 38 extending from an arm 28 of the machine frame is carried and into which protrudes a clamping bolt 40 controllable by a handwheel 42, lockable in different positions of the distance between the roller 32 and 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 Oberwalze umhüllenden flammen der aus der Schaumstoffbahn 3 entweichenden Abgase durch ihre Temperatur nicht eine über die Führungsrollen 36 und 34 der Walze 32 zugeleitete Bahn, beispielseise eine textile Bahn, zu schädigen verm5gen, 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 3 im Walzenspalt entstehende klebrige OMerflächensohicht der Schaumstoffbahn ihre klebenden Eigenschaften bis zum Aufwalzen der Bahn C noch gut beibehalten hat.The position of the roller 32 relative to the lower roller 12 and the upper roller 14 is chosen so that when the roller 32 is in contact with the lower roller 12, you Circumference has a sufficiently large distance from the top roller so that the top roller enveloping flames of the exhaust gases escaping from the foam sheet 3 through their Temperature not one fed to the roller 32 via the guide rollers 36 and 34 Web, for example a textile web, are able to damage, but nevertheless the The distance between the point of contact between the roller 32 and the lower roller 12 is as close as possible lies behind the nip, so that the result of the thermoplastic action the top roller 14 on top of the foam web 3 in the nip resulting sticky surface layer the foam sheet its adhesive Properties still well retained until the web C was rolled on.
Die. an der Berührungsstelle der Walze 32 mit der Unterwalze 12 fest auf die Oberfläche der Sohaumstoffbahn B aufgedrückte Bahn C läuft zusammen mit dieter über eine bei 48 vom Maschinenrahmen getragenen Führungsrolle 46.The. at the point of contact of the roller 32 with the lower roller 12 Web C pressed on the surface of the foam sheet B runs along with it dieter via a guide roller 46 carried by the machine frame at 48.
Die vorbezeichnete Arbeitsweise der Einrichtung ist in Fig. 3 schema tisch veranschaulicht.The aforesaid mode of operation of the device is shown in the diagram in FIG table illustrated.
Wenn auf eine. Schaumstoffbahn B ohne direkte Erhitzung der Oberfläche dieser Behn eine Schicht aus einem thermoplastischen Werkstoff aufgeschmolzen werden soll, so wird, wie dies in Fig. 4 veranschaulicht ist, die Walze 32 durch Betätigung des Schwenkhebels 30 von der Unterwalze 12 entfernt und eine thermoplastische Bahn C zusammen mit der Schaumstoffbahn B in den Spalt der Walzen 12, 14 eingeführt. Die beheizte Oberwalze 14 schmilzt in diesem Fall die zusätzlich in den Walzenspalt eingeführte thermoplastisch. Behn a, deren Masse sich fest mit der Schaumstoffbahn 3 verankert und eine die Poren der Schaumstoffbahn völlig bedeckende Oberflächenschicht bildet. Die mit dieser Oberflächenschicht versehene Schaumstoffbahn wird über die Führungsrolle 46 weggeführt.When on a. Foam sheet B without direct heating of the surface this Behn a layer of a thermoplastic material are melted is, as is illustrated in Fig. 4, the roller 32 by actuation of the pivot lever 30 away from the lower roll 12 and a thermoplastic sheet C, together with the foam web B, is introduced into the gap between the rollers 12, 14. In this case, the heated top roller 14 also melts in the roller gap imported thermoplastic. Behn a, the mass of which is firmly attached to the foam sheet 3 anchored and a surface layer that completely covers the pores of the foam sheet forms. The foam sheet provided with this surface layer is placed over the Guide roller 46 led away.
Soll die Oberfläche der Schaumstoffbahn verledert werden, so wird, wie dies in Fig. 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 angesohmolzene Oberflächenschicht wird durch die Führungsrolle 46, die in diesem Fall vorzugsweise einen beschleunigten Antrieb erhält, eine bügelnde Druckwirkung ausgeübt, durch die die noch plastische Masse der Oberflächenschicht der Schaumstoffbahn verstrichen und hierdurch auf der Sohaumstoffbahn ein Verlederungseffekt erzielt wird.If the surface of the foam sheet is to be leathered, then As shown in FIG. 5, the roller 32 is also removed from the lower roller 12 moved away. By the hot top roller 14, the surface of the foam web is melted in the nip and on the melted surface layer by the guide roller 46, which in this case preferably accelerates one Drive receives, exerted an ironing pressure effect, through which the still plastic Spread mass of the surface layer of the foam sheet and thereby on the Sohaumstoffbahn a leathering effect is achieved.
Durch Profilieren der Oberwalse 14, der Andrückwalze 32 bzw.By profiling the upper roller 14, the pressure roller 32 or
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 textilen Bahn, erzielen.the guide or Versederungswalze 46 can be simultaneously with leathering, coating or lamination have good embossing effects on the leathered Surface of the foam sheet on which a thermoplastic coating provided surface of the foam web or on a laminated onto the foam web Achieve web, for example a textile web.
Claims (9)
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 true DE1939565A1 (en) | 1971-02-11 |
DE1939565B2 DE1939565B2 (en) | 1976-02-12 |
DE1939565C3 DE1939565C3 (en) | 1976-09-23 |
Family
ID=
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999065666A1 (en) * | 1998-06-12 | 1999-12-23 | Atecs Mannesmann Ag | Slot die for producing webs of a foamed plastic material |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999065666A1 (en) * | 1998-06-12 | 1999-12-23 | Atecs Mannesmann Ag | Slot die for producing webs of a foamed plastic material |
Also Published As
Publication number | Publication date |
---|---|
NL7011456A (en) | 1971-02-08 |
BE754356A (en) | 1971-01-18 |
LU61449A1 (en) | 1970-10-05 |
DE1939565B2 (en) | 1976-02-12 |
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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 |