DE102004043869A1 - Extruder for production of wedge-shaped plastic plates has die head followed by adjustable rolls forming wedge shaped-gap and a cutter - Google Patents
Extruder for production of wedge-shaped plastic plates has die head followed by adjustable rolls forming wedge shaped-gap and a cutter Download PDFInfo
- Publication number
- DE102004043869A1 DE102004043869A1 DE102004043869A DE102004043869A DE102004043869A1 DE 102004043869 A1 DE102004043869 A1 DE 102004043869A1 DE 102004043869 A DE102004043869 A DE 102004043869A DE 102004043869 A DE102004043869 A DE 102004043869A DE 102004043869 A1 DE102004043869 A1 DE 102004043869A1
- Authority
- DE
- Germany
- Prior art keywords
- thick
- section
- roller
- sections
- narrow
- 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.)
- Ceased
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
- B29C59/02—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing
- B29C59/04—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing using rollers or endless belts
- B29C59/043—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing using rollers or endless belts for profiled 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0022—Combinations of extrusion moulding with other shaping operations combined with cutting
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/30—Extrusion nozzles or dies
- B29C48/305—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/30—Extrusion nozzles or dies
- B29C48/35—Extrusion nozzles or dies with rollers
-
- 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
- B29C2793/00—Shaping techniques involving a cutting or machining operation
- B29C2793/0063—Cutting longitudinally
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/12—Articles with an irregular circumference when viewed in cross-section, e.g. window profiles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/772—Articles characterised by their shape and not otherwise provided for
- B29L2031/7738—Wedge shaped
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
Description
Die vorliegende Erfindung betrifft im Allgemeinen eine Vorrichtung zur Herstellung von Platten und insbesondere eine Vorrichtung zur Herstellung von Keilplatten.The The present invention relates generally to a device for Production of plates and in particular a device for the production of Wedge plates.
Eine herkömmliche Flüssigkristallanzeige (LCD) weist ein Hintergrundbeleuchtungsmodul auf, das gewöhnlich in ein Direktbeleuchtungsmodul für eine Hintergrundbeleuchtung und ein Kantenbeleuchtungsmodul für eine Hintergrundbeleuchtung aufteilt ist. Das Kantenbeleuchtungsmodul für eine Hintergrundbeleuchtung weist eine Lichtführungsplatte auf, die normalerweise eine Keilplatte darstellt und aus Polymethylmethacrylat (PMMA), Polycarbonat (PC), zyklischem Olefinpolymer (COP) oder zyklischem Olefincopolymer (COC) hergestellt wird.A conventional Liquid crystal display (LCD) has a backlight module commonly used in a direct lighting module for a Backlight and an edge lighting module for a backlight splits is. The edge lighting module for a backlight has a light guide plate which is usually a wedge plate and polymethylmethacrylate (PMMA), polycarbonate (PC), cyclic olefin polymer (COP) or cyclic Olefin copolymer (COC) is produced.
Die Lichtführungsplatte wird normalerweise durch Spritzgießen hergestellt, wobei ein Injektor verwendet wird, um geschmolzenen Kunststoff in einen Hohlraum einer Gussform zu injizieren. Nachdem der Kunststoff verfestigt wurde, wird die Gussform geöffnet, um die Platte herauszunehmen. Danach wird die Gussform geschlossen, um den nächsten Injektionsvorgang durchzuführen. Spritzgießen ist für eine Massenproduktion zu langsam, da lediglich eine Platte bei jedem Vorgang gegossen wird. Die Platte könnte sich beim Gießen der großen Platte durch Spritzgießen verbiegen. Zusätzlich weist die durch Spritzgießen hergestellte Platte normalerweise unbeständige optische Eigenschaften auf, da in der Platte eine Restspannung vorliegt.The Light guide plate is usually made by injection molding, with a Injector is used to melt molten plastic into a cavity to inject a mold. After the plastic solidifies was, the mold is opened, to take out the plate. Then the mold is closed, around the next To carry out injection process. injection molding is for a mass production too slow, as only one plate at each Process is poured. The plate could be when pouring the huge Plate by injection molding bend. additionally shows that by injection molding manufactured panel usually unstable optical properties because there is a residual stress in the plate.
Die Hauptaufgabe der vorliegenden Erfindung besteht darin, eine Vorrichtung zur Herstellung von Keilplatten bereitzustellen, die eine hohe Geschwindigkeit für eine Massenproduktion und keine Restspannung in der Platte aufweist.The The main object of the present invention is a device to provide for the production of wedge plates, which is a high speed for one Mass production and no residual stress in the plate has.
Gemäß der Aufgabe der vorliegenden Erfindung umfasst eine Vorrichtung einen Extruder mit einem Einlass, einer Heizeinrichtung und einem Auslass. Ein Kunststoffmaterial wird dem Extruder über den Einlass zugeführt, durch die Heizeinrichtung geschmolzen und aus dem Extruder über den Auslass extrudiert. Ein Düsenkopf weist einen Kanal mit einem Einlass und Auslass auf. Der Einlass des Düsenkopfs ist mit dem Auslass des Extruders verbunden. Eine Walzenvorrichtung weist zwei Walzen mit jeweils einer Achse und einem Umfang auf, wobei ein Raum zwischen den Walzen mindestens einen dicken bzw. breiten Abschnitt und mindestens einen engen Abschnitt aufweist. Der dicke Abschnitt weist eine Höhe auf, die einen Abstand zwischen den Umfängen von den Walzen darstellt, der größer ist als der des engen Abschnitts. Der Raum der Walzenvorrichtung ist mit dem Auslass des Düsenkopfs ausgerichtet und der Auslass des Düsenkopfs weist eine Übereinstimmung mit dem Raum auf, so dass das Kunststoffmaterial über den Kanal des Düsenkopfs in den Raum der Walzenvorrichtung einfließt und durch die Walzen gewalzt wird. Eine Schneidevorrichtung ist hinter der Walzenvorrichtung angeordnet, um das durch die Walzenvorrichtung gewalzte Kunststoffmaterial zu schneiden, um die Keilplatten zu erhalten.According to the task In the present invention, an apparatus comprises an extruder with an inlet, a heater and an outlet. One Plastic material is fed to the extruder via the inlet, through the heater is melted and removed from the extruder via the Outlet extruded. A nozzle head has a channel with an inlet and outlet. The inlet of the nozzle head is connected to the outlet of the extruder. A roller device has two rollers each having an axis and a circumference, wherein a space between the rollers at least one thick or has wide section and at least one narrow section. The thick section has a height which represents a distance between the circumferences of the rollers, which is bigger as that of the narrow section. The space of the roller device is with the outlet of the nozzle head aligned and the outlet of the nozzle head has a match with the space on top so that the plastic material over the Channel of the nozzle head enters the space of the roller device and rolled by the rollers becomes. A cutting device is behind the roller device arranged around the rolled by the roller device plastic material to cut to get the wedge plates.
Die
die
die
die
die
die
die
die
die
die
die
die
die
die
die
Eine
Vorrichtung
Der
Extruder
Der
Düsenkopf
Wie
in der
Die
Schneidevorrichtung
Die
Vorrichtung der vorliegenden Erfindung erzeugt die Keilplatten
Um
verschiedene Größen der
Keilplatten durch die Vorrichtung der vorliegenden Erfindung herzustellen,
ist der eingeschlossene Winkel θ der Achsen
Die
Die
Eine,
wie in der
Die
Eine
durch die Walzenvorrichtung
Die
Die durch die Vorrichtung der vorliegenden Erfindung hergestellten Keilplatten können auf vielen Gebieten, wie beispielsweise der vorstehend beschriebenen Lichtplatte, verwendet werden.The Wedge plates produced by the device of the present invention can in many fields, such as those described above Light plate, to be used.
Claims (14)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004043869A DE102004043869A1 (en) | 2004-09-10 | 2004-09-10 | Extruder for production of wedge-shaped plastic plates has die head followed by adjustable rolls forming wedge shaped-gap and a cutter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004043869A DE102004043869A1 (en) | 2004-09-10 | 2004-09-10 | Extruder for production of wedge-shaped plastic plates has die head followed by adjustable rolls forming wedge shaped-gap and a cutter |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102004043869A1 true DE102004043869A1 (en) | 2006-03-30 |
Family
ID=36011317
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102004043869A Ceased DE102004043869A1 (en) | 2004-09-10 | 2004-09-10 | Extruder for production of wedge-shaped plastic plates has die head followed by adjustable rolls forming wedge shaped-gap and a cutter |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102004043869A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102380943A (en) * | 2011-09-15 | 2012-03-21 | 芜湖精塑实业有限公司 | Heat insulation bar extrusion forming system and forming process thereof |
CN113635532A (en) * | 2021-08-09 | 2021-11-12 | 界首市天鸿新材料股份有限公司 | PP/PE/PP three-layer co-extrusion lithium battery power diaphragm casting device |
CN114347425A (en) * | 2022-01-06 | 2022-04-15 | 浙江龙财塑业有限公司 | Production system and production method of drain pipe |
-
2004
- 2004-09-10 DE DE102004043869A patent/DE102004043869A1/en not_active Ceased
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102380943A (en) * | 2011-09-15 | 2012-03-21 | 芜湖精塑实业有限公司 | Heat insulation bar extrusion forming system and forming process thereof |
CN113635532A (en) * | 2021-08-09 | 2021-11-12 | 界首市天鸿新材料股份有限公司 | PP/PE/PP three-layer co-extrusion lithium battery power diaphragm casting device |
CN113635532B (en) * | 2021-08-09 | 2023-07-28 | 界首市天鸿新材料股份有限公司 | PP/PE/PP three-layer co-extrusion lithium battery power diaphragm casting device |
CN114347425A (en) * | 2022-01-06 | 2022-04-15 | 浙江龙财塑业有限公司 | Production system and production method of drain pipe |
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Legal Events
Date | Code | Title | Description |
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OP8 | Request for examination as to paragraph 44 patent law | ||
8131 | Rejection |