CH702818B1 - Processing method for reflective sheeting. - Google Patents

Processing method for reflective sheeting. Download PDF

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Publication number
CH702818B1
CH702818B1 CH00291/10A CH2912010A CH702818B1 CH 702818 B1 CH702818 B1 CH 702818B1 CH 00291/10 A CH00291/10 A CH 00291/10A CH 2912010 A CH2912010 A CH 2912010A CH 702818 B1 CH702818 B1 CH 702818B1
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CH
Switzerland
Prior art keywords
cutting
processing method
layer
ultrasonic
takes place
Prior art date
Application number
CH00291/10A
Other languages
German (de)
Other versions
CH702818A2 (en
Inventor
Kurt Rutschi
Oliver Rutschi
Original Assignee
Rutschi Ag Oerlikerhus
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 Rutschi Ag Oerlikerhus filed Critical Rutschi Ag Oerlikerhus
Priority to CH00291/10A priority Critical patent/CH702818B1/en
Publication of CH702818A2 publication Critical patent/CH702818A2/en
Publication of CH702818B1 publication Critical patent/CH702818B1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F3/00—Severing by means other than cutting; Apparatus therefor
    • B26F3/06—Severing by using heat
    • B26F3/08—Severing by using heat with heated members
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/352—Working by laser beam, e.g. welding, cutting or boring for surface treatment
    • B23K26/355—Texturing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/36—Removing material
    • B23K26/40—Removing material taking account of the properties of the material involved
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D5/005—Computer numerical control means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/08—Means for treating work or cutting member to facilitate cutting
    • B26D7/086—Means for treating work or cutting member to facilitate cutting by vibrating, e.g. ultrasonically
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/08—Means for treating work or cutting member to facilitate cutting
    • B26D7/10—Means for treating work or cutting member to facilitate cutting by heating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/38—Cutting-out; Stamping-out
    • 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
    • B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
    • B29C65/083—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations using a rotary sonotrode or a rotary anvil
    • B29C65/085—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations using a rotary sonotrode or a rotary anvil using a rotary sonotrode
    • 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
    • B29C65/74—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area
    • B29C65/743—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using the same tool for both joining and severing, said tool being monobloc or formed by several parts mounted together and forming a monobloc
    • B29C65/7443—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using the same tool for both joining and severing, said tool being monobloc or formed by several parts mounted together and forming a monobloc by means of ultrasonic vibrations
    • 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
    • B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
    • B29C65/7841—Holding or clamping means for handling purposes
    • B29C65/7847—Holding or clamping means for handling purposes using vacuum to hold at least one of the parts to be joined
    • 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
    • B29C66/43—Joining a relatively small portion of the surface of said 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
    • B29C66/70—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
    • B29C66/723—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 multi-layered
    • 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
    • B29C66/73—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • 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
    • B29C66/836—Moving relative to and tangentially to the parts to be joined, e.g. transversely to the displacement of the parts to be joined, e.g. using a X-Y table
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/16—Composite materials, e.g. fibre reinforced
    • B23K2103/166—Multilayered materials
    • B23K2103/172—Multilayered materials wherein at least one of the layers is non-metallic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/01—Means for holding or positioning work
    • B26D7/018—Holding the work by suction
    • 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
    • B29C65/74—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area
    • B29C65/743—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using the same tool for both joining and severing, said tool being monobloc or formed by several parts mounted together and forming a monobloc
    • 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
    • B29C65/74—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area
    • B29C65/747—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using other than mechanical means
    • B29C65/7473—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using other than mechanical means using radiation, e.g. laser, for simultaneously welding and severing
    • 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
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/137—Beaded-edge joints or bead seals
    • 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
    • B29C66/70—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
    • B29C66/73—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B29C66/73921—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/12—Reflex reflectors

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Plasma & Fusion (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Cutting Processes (AREA)

Abstract

Bei einem Bearbeitungsverfahren für reflektierendes Folienmaterial (8), bei dem eine strukturierte Reflexionsschicht oder eine strukturierte Reflexionsschicht mit eingebetteten reflexionsfördernden perlenartigen Strukturelementen zwischen einer Trägerschicht und einer transparenten Deckschicht angeordnet ist und bei dem mindestens die Trägerschicht und/oder die Deckschicht thermoplastische Kunststoffe sind, wird mit einem programmierbaren Schneidgerät zumindest teilweise thermisch geschnitten, dies zur gleichzeitigen Erzielung eines Schneid- und eines Randversiegelungsvorgangs.In a processing method for reflective sheet material (8), in which a structured reflection layer or a structured reflection layer with embedded reflection-promoting pearl-like structural elements between a support layer and a transparent cover layer is arranged and in which at least the support layer and / or the cover layer are thermoplastic materials, is with a programmable cutter at least partially thermally cut, this to simultaneously achieve a cutting and edge sealing operation.

Description

[0001] Die Erfindung betrifft ein Bearbeitungsverfahren für reflektierendes Folienmaterial nach Patentanspruch 1. The invention relates to a processing method for reflective sheet material according to claim 1.

[0002] Bei dem reflektierenden Folienmaterial handelt es sich insbesondere um Folienmaterial nach DIN 67520 der Klassen RA2 und RA3. Das sind reflektierende Folien mit hohen Rückstrahlwerten, die zunehmend für Verkehrszeichen und andere Anwendungen eingesetzt werden, bei denen eine sehr gute Erkennbarkeit selbst unter schwierigen Lichtverhältnissen gefordert oder erwünscht ist. Bezüglich des Aufbaus handelt es sich dabei um mehrschichtige Verbundmaterialien, bei denen eine strukturierte Reflexionsschicht oder eine strukturierte Reflexionsschicht mit eingebetteten reflexionsfördernden perlenartigen Strukturelementen zwischen einer Trägerschicht und einer transparenten Deckschicht angeordnet ist, wobei mindestens die Trägerschicht und/oder die Deckschicht thermoplastische Kunststoffe sind. Reflektierende Folien dieser Art sind zum Aufkleben auf Trägermaterialien vorgesehen. Sie haben im Vergleich zu reflektierenden Folien der Klasse RA1 um den Faktor 4 bis 5 höhere Rückstrahlwerte, die sich auch nach Jahren praktisch nicht vermindern. Reflektierende Folien dieser Art werden beispielsweise von den Firmen Avery Dennison und 3M hergestellt. The reflective film material is in particular film material according to DIN 67520 classes RA2 and RA3. These are reflective films with high reflectance values, which are increasingly used for traffic signs and other applications in which a very good visibility even in difficult lighting conditions is required or desired. With regard to the construction, these are multilayer composite materials in which a structured reflection layer or a structured reflection layer with embedded reflection-promoting pearl-like structural elements is arranged between a carrier layer and a transparent cover layer, wherein at least the carrier layer and / or the cover layer are thermoplastic materials. Reflective films of this type are intended for bonding to support materials. Compared to RA1 reflective films, they have a factor of 4 to 5 higher reflectance values, which practically do not diminish even after years. Reflective films of this type are produced, for example, by Avery Dennison and 3M.

[0003] Für viele Anwendungen derartiger Folien müssen Konturen oder Formteile aus dem zur Verfügung stehenden Bogenmaterial ausgeschnitten werden. Dabei handelt es sich oftmals um Foliengrafiken für Verkehrszeichen, Fahrzeuge und Schilder, zumeist eben um Formen und Muster, die besonders auffällig erscheinen sollen. Viele dieser Foliengrafiken entstehen aus mosaikartigen Zusammensetzungen reflektierender Folien verschiedener Farbtöne und verschiedener Rückstrahlwerte. For many applications of such films contours or moldings must be cut out of the available sheet material. These are often foil graphics for traffic signs, vehicles and signs, mostly just around shapes and patterns, which should appear particularly conspicuous. Many of these film graphics are made from mosaic compositions of reflective films of different hues and different retroreflective values.

[0004] Folien dieser Art können mit einer Klinge von Hand oder mit einem Schneideplotter geschnitten werden. Schnitte bewirken aber immer, dass entlang der Schnittkanten der Folie die Reflexionsschicht, die Zwischenschicht und die eingearbeiteten Glasperlen oder Mikroprismen zumindest teilweise angeschnitten und verletzt werden. In der Anwendung begünstigt das das seitliche Eindringen von Schmutz und Nässe in die Folienkonstruktion dieser Verbundmaterialien. Selbst relativ kurzzeitige Expositionen (Stunden und Tage) in Feuchtigkeit und Nässe können bereits zu unschönen Randverfärbungen entlang der Schnittkanten führen. Effekte dieser Art, sicher aber auch Kälte und Schmutz, können in der Folge dazu führen, dass sich der Alterungsprozess und die damit einhergehende Verminderung der Rückstrahlwerte beschleunigen. Foliengrafiken mit Randverfärbungen sind zudem auch kein besonders schöner Anblick. Randverfärbungen stören das Design, mindern die Sicherheit und beeinträchtigen auch das Image des Informationsträgers. Slides of this type can be cut with a blade by hand or with a cutting plotter. However, cuts always have the result that along the cut edges of the film the reflective layer, the intermediate layer and the incorporated glass beads or microprisms are at least partially cut and injured. In the application this favors the lateral penetration of dirt and moisture into the film construction of these composite materials. Even relatively brief exposures (hours and days) to moisture and moisture can already lead to unsightly edge discolouration along the cut edges. Effects of this kind, but certainly also cold and dirt, can consequently lead to accelerate the aging process and the concomitant reduction in the retroreflective values. Foil graphics with marginal discoloration are also not a very nice sight. Edge discoloration disturbs the design, reduces safety and also affects the image of the information carrier.

[0005] Es ist deshalb die Aufgabe der Erfindung, ein Bearbeitungsverfahren für reflektierendes Folienmaterial vorzuschlagen, das die erwähnten Nachteile nicht mehr aufweist. It is therefore an object of the invention to provide a processing method for reflective film material, which no longer has the disadvantages mentioned.

[0006] Die Lösung beinhaltet, dass im Bearbeitungsverfahren zumindest teilweise ein thermisches Wirkprinzip zur gleichzeitigen Erzielung eines Schneid- und eines Randversiegelungsvorgangs angewendet wird. The solution includes that in the processing method, at least partially, a thermal action principle for simultaneously achieving a cutting and edge sealing operation is applied.

[0007] Zu den geeigneten Schneidverfahren, die diese Bedingung erfüllen, zählen insbesondere das Ultraschall-Schneidverfahren, aber auch das eher konventionelle Schneiden mit einem Schlepp- oder Tangentialmesser mit einem aufheizbaren Schneidmesser oder das Laserschneidverfahren. Among the suitable cutting methods that meet this condition include, in particular, the ultrasonic cutting method, but also the more conventional cutting with a towing or tangential knife with a heatable cutting blade or the laser cutting process.

[0008] Das Ultraschall-Schneidverfahren hat sich als besonders vorteilhaft erwiesen. Bekannterweise eignet sich das Ultraschallschneiden zum Schneiden teilweise völlig unterschiedlicher Materialien wie Naturstoffe und Kunststoffe, und es ist auch bekannt, dass die Wirkungsweise nicht rein thermischer Natur ist, sondern auch besondere Effekte der Feinschwingungen an den Festkörper-Grenzflächen nutzt. Beispielsweise ist aus der Textilindustrie bekannt, dass in vielen Fällen beim Gewebeschneiden gleichzeitig versiegelt werden kann, wodurch ein Ausfransen verhindert wird. Die ebenfalls vorhandene thermische Wirkung, erzeugt durch die hochfrequente oszillierende Bewegung des Schneidmessers, welche in Reibungswärme umgewandelt wird, begünstigt den Randversiegelungsvorgang noch weiter, besonders dann, wenn zumindest Teile des zu zerschneidenden Materials aus thermoplastischen oder zumindest schmelzfähigen Materialien bestehen. The ultrasonic cutting method has proved to be particularly advantageous. Known manner, the ultrasonic cutting is suitable for cutting partially completely different materials such as natural materials and plastics, and it is also known that the effect is not purely thermal nature, but also uses special effects of fine vibrations at the solid-state interfaces. For example, it is known from the textile industry that, in many cases, fabric cutting can be simultaneously sealed, thereby preventing fraying. The also present thermal effect, generated by the high-frequency oscillating movement of the cutting blade, which is converted into frictional heat, favors the edge sealing process even further, especially if at least parts of the material to be cut consist of thermoplastic or at least meltable materials.

[0009] Ein derartiges Bearbeitungsverfahren wird mit einem programmierbaren Schneidgerät ausgeführt. Dazu wird vorteilhaft ein Schneidplotter mit einem Ultraschall-Schneidkopf eingesetzt. Such a processing method is carried out with a programmable cutter. For this purpose, a cutting plotter with an ultrasonic cutting head is advantageously used.

[0010] Es hat sich zudem gezeigt, dass der Ultraschall-Schneidkopf beim Schneiden von reflektierenden Folien der eingangs genannten Art mit einer konstanten Ultraschall-Frequenz im Bereich von 15–30 kHz betrieben werden kann. It has also been found that the ultrasonic cutting head can be operated when cutting reflective films of the type mentioned with a constant ultrasonic frequency in the range of 15-30 kHz.

[0011] Im Folgenden wird die Erfindung anhand von Zeichnungen näher erläutert. Dabei zeigt die <tb>Fig. 1<SEP>eine schematische Seitenansicht eines Schneidplotters mit einem Ultraschall-Schneidkopf, und <tb>Fig. 2<SEP>die Spitze eines Ultraschall-Schneidmessers.In the following the invention will be explained in more detail with reference to drawings. It shows the <Tb> FIG. 1 <SEP> is a schematic side view of a cutting plotter with an ultrasonic cutting head, and <Tb> FIG. 2 <SEP> the tip of an ultrasonic cutting knife.

[0012] Die Fig. 1 zeigt eine schematische Seitenansicht eines Schneidplotters mit einem Ultraschall-Schneidkopf 1. In diesem Beispiel handelt es sich um einen Flachbett-Schneidplotter von bekannter Bauart, bei dem der Ultraschall-Schneidkopf 1 anstelle eines üblicherweise verwendeten Schneidkopfes mit einem Schlepp- oder Tangentialmesser auf einem Werkzeugträger 2 sitzt. Der Werkzeugträger 2 ist seinerseits auf einem Plotterbalken 3 in Y-Richtung beweglich angebracht. Der Plotterbalken 3 ist gegenüber einem Plottertisch 4 in X-Richtung beweglich angebracht. Bei dem Schneidplotter handelt es sich um ein programmierbares Gerät. Die Bewegungen in X- und Y-Richtung werden von einer programmierbaren Steuerung (nicht dargestellt) und von Bedienungselementen 5 gesteuert. Fig. 1 shows a schematic side view of a cutting plotter with an ultrasonic cutting head 1. In this example, it is a flatbed cutting plotter of known type, in which the ultrasonic cutting head 1 instead of a commonly used cutting head with a drag - Or tangential knife sits on a tool carrier 2. The tool carrier 2 is in turn mounted movably on a plotter bar 3 in the Y direction. The plotter bar 3 is movably mounted opposite a plotter table 4 in the X-direction. The cutting plotter is a programmable device. The movements in the X and Y directions are controlled by a programmable controller (not shown) and by operating elements 5.

[0013] Der Ultraschall-Schneidkopf 1 hat ein absenkbar und drehbar angeordnetes Schneidwerkzeug 6, hier ein Ultraschall-Schneidmesser. Es handelt sich somit um eine Anordnung mit einem tangential gesteuerten Schneidmesser, bei dem das Schneidmesser in jeder Kurve im entsprechenden Winkel mitgeführt wird. Das Schneidwerkzeug 6 kann nach Bedarf gekühlt werden, beispielsweise über eine ebenfalls am Werkzeugträger 2 angebrachte Kühldüse 7. The ultrasonic cutting head 1 has a lowering and rotatably arranged cutting tool 6, here an ultrasonic cutting blade. It is thus an arrangement with a tangentially controlled cutting blade, in which the cutting blade is carried in each curve in the appropriate angle. The cutting tool 6 can be cooled as needed, for example via a cooling nozzle 7 likewise mounted on the tool carrier 2.

[0014] Das zu bearbeitende reflektierende Folienmaterial 8 liegt dabei auf einer Schneidunterlage 9 auf dem Plattentisch 4. Sowohl der Plattentisch 4 wie auch die Schneidunterlage 9 sind dabei mit Luftdurchlasslöchern bzw. Perforierungen (nicht dargestellt) versehen. Das Folienmaterial 8 wird zusammen mit der Schneidunterlage 9 mittels eines Unterdrucks, der von einer Vakuumpumpe erzeugt wird, auf dem Plattentisch fixiert. Angedeutet sind die dabei entstehenden Haltekräfte mit den kurzen Pfeilen. The sheet material to be processed 8 is placed on a cutting pad 9 on the turntable 4. Both the disc table 4 as well as the cutting pad 9 are provided with air passage holes or perforations (not shown). The sheet material 8 is fixed on the disc table together with the cutting pad 9 by means of a negative pressure generated by a vacuum pump. Indicated are the resulting holding forces with the short arrows.

[0015] Die Schneidunterlage 9 ist notwendig, weil bei dieser Art des Schneidens sämtliche Schichten des mehrschichtigen Verbundmaterials, aus dem das reflektierende Folienmaterial 8 besteht, durchschnitten werden. The cutting pad 9 is necessary because in this type of cutting all the layers of the multilayer composite material of which the reflective sheet material 8 is cut through.

[0016] Die Fig. 2 zeigt schliesslich noch die Spitze eines Ultraschall-Schneidmessers in seiner prinzipiellen Form. Dabei ist ersichtlich, dass das Schneidwerkzeug eine stiletto-artig angeschliffene Schneidspitze 10 aufweist. Finally, FIG. 2 shows the tip of an ultrasonic cutting knife in its basic form. It can be seen that the cutting tool has a stiletto-like ground cutting tip 10.

Bezugsziffernliste:List of reference numerals:

[0017] <tb>1<SEP>Ultraschall-Schneidkopf <tb>2<SEP>Werkzeugträger <tb>3<SEP>Plotterbalken <tb>4<SEP>Plattentisch <tb>5<SEP>Bedienungselemente <tb>6<SEP>Schneidwerkzeug <tb>7<SEP>Kühldüse <tb>8<SEP>Reflektierendes Folienmaterial <tb>9<SEP>Schneidunterlage <tb>10<SEP>Schneidspitze[0017] <Tb> 1 <September> Ultrasonic cutting head <Tb> 2 <September> tool carrier <Tb> 3 <September> Plotterbalken <Tb> 4 <September> top table <Tb> 5 <September> Controls <Tb> 6 <September> Cutting tool <Tb> 7 <September> cooling nozzle <tb> 8 <SEP> Reflective film material <Tb> 9 <September> cutting base <Tb> 10 <September> cutting tip

Claims (5)

1. Bearbeitungsverfahren für reflektierendes Folienmaterial (8), bei dem eine strukturierte Reflexionsschicht oder eine strukturierte Reflexionsschicht mit eingebetteten reflexionsfördernden perlenartigen oder mikroprismatischen Strukturelementen zwischen einer Trägerschicht und einer transparenten Deckschicht angeordnet ist, wobei mindestens die Trägerschicht und/oder die Deckschicht thermoplastische Kunststoffe sind, dadurch gekennzeichnet, dass mittels eines programmierbaren Schneidgerätes das Folienmaterial zumindest teilweise thermisch geschnitten wird, wobei gleichzeitig mit dem zumindest teilweise thermischen Schneiden eine Randversiegelung erfolgt.A method of processing a reflective sheeting (8) comprising arranging a patterned reflective or patterned reflective layer having embedded reflection-promoting bead-like or microprismatic features between a support layer and a transparent cover layer, wherein at least the support layer and / or the cover layer are thermoplastic characterized in that by means of a programmable cutter, the film material is at least partially thermally cut, wherein simultaneously with the at least partially thermal cutting edge sealing takes place. 2. Bearbeitungsverfahren nach Patentanspruch 1, dadurch gekennzeichnet, dass das thermische Schneiden mit einem Ultraschall-Schneidkopf erfolgt und das programmierbare Schneidgerät ein Schneidplotter mit dem Ultraschall-Schneidkopf (1) ist.2. Processing method according to claim 1, characterized in that the thermal cutting takes place with an ultrasonic cutting head and the programmable cutter is a cutting plotter with the ultrasonic cutting head (1). 3. Bearbeitungsverfahren nach Patentanspruch 1, dadurch gekennzeichnet, dass das thermische Schneiden mit einem aufheizbaren Schneidmesser erfolgt und das programmierbare Schneidgerät ein Schneidplotter ist, bei dem das Schneidmesser als Schlepp- oder Tangentialmesser ausgebildet ist.3. Processing method according to claim 1, characterized in that the thermal cutting takes place with a heatable cutting blade and the programmable cutter is a cutting plotter, wherein the cutting blade is designed as a drag or Tangentialmesser. 4. Bearbeitungsverfahren nach Patentanspruch 1, dadurch gekennzeichnet, dass das thermische Schneiden mit einem Laser erfolgt und das programmierbare Schneidgerät ein Schneidplotter mit einem Laser-Schneidkopf ist.4. Processing method according to claim 1, characterized in that the thermal cutting takes place with a laser and the programmable cutter is a cutting plotter with a laser cutting head. 5. Bearbeitungsverfahren nach Patentanspruch 2, dadurch gekennzeichnet, dass der Ultraschall-Schneidkopf (1) mit einer konstanten Ultraschall-Frequenz im Bereich von 15–30 kHz arbeitet.5. Processing method according to claim 2, characterized in that the ultrasonic cutting head (1) operates at a constant ultrasonic frequency in the range of 15-30 kHz.
CH00291/10A 2010-03-05 2010-03-05 Processing method for reflective sheeting. CH702818B1 (en)

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DE202015009226U1 (en) * 2015-02-13 2017-01-13 Coroplast Fritz Müller Gmbh & Co. Kg Device for manufacturing textile adhesive tapes
FR3037271B1 (en) * 2015-06-12 2018-01-12 Centre Technique Des Industries Mecaniques INSTALLATION OF THIN FILM CUTTING OF SYNTHETIC MATERIAL
CN105216061A (en) * 2015-10-30 2016-01-06 苏州新区佳合塑胶有限公司 Plastic sheeting cutter

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