• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:

    公开号:AT510023A4
    申请号:T0151310
    申请日:2010-09-13
    公开日:2012-01-15
    发明作者:Hannes Haubitz
    申请人:Hannes Haubitz；
    IPC主号:
    专利说明:

    • · * * «« «f f f f f f f. 1 .
    The invention relates to an extrusion die for an extrusion tool for producing composite profiles of different materials, which are processed at different temperatures, wherein in a nozzle body separate channels are provided, which open at the end face of the extrusion die and through which different materials are conveyed.
    Such extrusion dies are used, e.g. To produce frame profiles for windows and doors in a co-extrusion process, as described for example in WO 2009/062986 A. In the extrusion of different materials with different processing temperatures through a common extrusion nozzle, there is basically the problem that the processing temperature of the different materials must be kept within narrow limits. Here, a simple construction of the extrusion die is desirable, which allows a reliable control or regulation of the processing temperature of the individual active ingredients.
    Furthermore, there is a need to be able to easily convert or adapt extrusion dies if individual components of a co-extruded profile are to be changed, added or omitted in order to adapt the profile to changing requirements. So it may be, for example, that one and the same basic profile once with a foamed core and once without this is to be produced or the material is changed with the foamed, for example, once this only a thermally insulating effect and another time a stiffening effect should have. In these cases, a conversion of the extrusion die should be as simple as possible.
    In order to achieve these objects, it is proposed according to the invention that, in the case of an extrusion nozzle of the type mentioned at the beginning, at least one channel is formed by a nozzle which is exchangeably received in the nozzle body and which has a tempering device.
    With regard to its geometrical structure and the materials used, the nozzle can be precisely matched to the material to be extruded, wherein the tempering device can likewise be precisely matched to the material to be extruded or the installation situation in the extrusion die. Since the nozzle forms a structural unit with the tempering device, it can be changed very easily and thus the extrusion nozzle can be converted just as easily. Also, longer or shorter nozzles can be installed in a simple manner, if they should protrude beyond the end face of the extrusion die in an individual case or alternatively may not protrude.
    In its simplest form, the nozzle is only isolated by the tempering device with respect to the surrounding nozzle body. Alternatively or additionally, it is of course also possible in the case of the invention for the tempering device to comprise a heating device, in particular an electric motor. ·······················································································································. In particular, the tempering in the invention, at least one Strömungskana! for a heating or cooling agent. Suitable heating or cooling means are all fluids commonly used in this context, in particular water, steam or oil. In particular, with technically complex tempering 5 designed the invention is advantageous because the nozzle can be completely replaced with the appropriate temperature control, an adaptation of the extrusion nozzle is therefore extremely easy.
    Needle valve nozzles can also be used in the invention since, due to the precise temperature control that is possible, no permanent flow through the nozzle channels is required in order to avoid an undesired reaction, in particular hardening or change due to overheating or cooling, of the material to be extruded due to an undesired temperature deviation. A particularly simple assembly, disassembly or replacement of a nozzle is possible in the present invention when the nozzle body consists of at least two sections, wherein the nozzle is received in a first, end-side section and at its front side opposite end a connection section is connected. The nozzle may then be assembled or disassembled during installation, removal or replacement, preferably along with the connection portion that has already integrated or connected old suitable connections for one or more nozzles.
    By the connection section, which is preferably also easily replaceable separately, a simple adjustment of the supply lines for or in another 25 sequence leading through the nozzle channel or channels and possibly existing supply lines for the temperature control is possible, this order Any angle, preferably by an angle between 45 ° and 90 ° can be deflected.
    According to the invention, the channel in the connection section, which is adjoined by the channel leading thereafter through the nozzle, may also be surrounded by a tempering device, with several channels passing through the connection section separating them either together or alternatively in each case separately from a tempering device can be surrounded.
    If at least two channels formed by a nozzle are provided, a distributor can be arranged in the connection section from a common feed channel into the channels in order to be able to supply a plurality of nozzles to one feed channel.
    Further features and advantages of the invention will become apparent from the following description of preferred Ausführungsbeispieie the invention with reference to the attached 40 drawings. It shows: 5 - 3 -
    • ·
    1 shows a section through a first embodiment of an extrusion die according to the invention,
    2 is a left side view of the extrusion die of FIG. 1, FIG.
    3 shows the embodiment of Fig. 1 in an exploded view,
    FIG. 4 shows a part of a connection section of FIG. 1 according to the invention, FIG.
    5 shows a further part of a connection section of FIG. 1 according to the invention with a nozzle arranged thereon, FIG.
    6 shows a section through a second embodiment of an extrusion die according to the invention and FIG
    7 is a left side view of the extrusion die of FIG. 6. FIG.
    In Fig. 1, a first embodiment of an extrusion die according to the invention is shown, the nozzle body is assembled from a plurality of sections or plates 1 to 6, which are screwed together in the illustrated embodiment with four screws 7 together. On the 15 in Fig. 1 arranged on the left end face a Stim plate 1 is arranged, in which in the illustrated Ausführungsbeispie! three channels 8, 9, 10 open. The channel 8 has, as shown in FIG. 2, in this embodiment in the region of its mouth a substantially rectangular shape and extends through the plates 2 to 6 to the rear to a terminal 11. 20 Through the channel 8 flows from an extruder Ready-stiffened plastic material with a suitable processing temperature. This plastic material may be, for example, foamed or unfoamed PVC (polyvinyl chloride), PBT (polybutylene terephthalate), PE (polyethylene), PP (polypropylene) or WPC (wood plastic composite) whose processing temperature in the extrusion die is usually between 180 ° and 220 ° 25, but may of course also be higher or lower. In order that the temperature of the plastic material in the extrusion die is kept within the permissible values, the extrusion die in the exemplary embodiment shown is heated from outside with heating plates or strips 24 (FIGS. 6 and 7) which surround the plates 1 to 6. After the exit of the plastic material from the end plate 1, the profile can be stabilized in a known per se, 30 cooled, molded, etc. are.
    The two further channels 9, 10 which also open out in the end plate 1 are formed by nozzles 12, of which a nozzle 12 is shown in greater detail in FIG. 5. The nozzle 12 has a tempering device 13 surrounding the channel 9, for example in the form of a tubular jacket 35 formed by channels or spiraling around the channel 9, through which a heat-conducting medium such as water or oil flows, around the nozzle 12 To temper, that is, to heat or cool. The mouth 14 of the nozzle 12 closes in the embodiment shown in FIG. 1 flush with the end face 15 of the end plate 1, but depending on the application, but may also end in front of the end face 15 or project beyond this 40. In addition, the nozzle 12 can be provided with a needle closure (not shown) if necessary or helpful in an application.
    The nozzle 12 terminates at its end opposite the mouth 14 at a connection section 4. This consists in the illustrated embodiment substantially of three parts, 5 namely a plate 15, in which a connection part 16 for the channel 9 and a connection part 17 for the jacket 13 can be installed. In the connection part 16, a feed channel 18 is arranged, which can be connected via a connection 23 to a further extruder, through which a plastic material is supplied, which differs in its properties from the plastic material which is fed to the channel 8. The material supplied to the feed channel 18 and in further succession to the channels 9, 10 may be, for example, PVC, PBT, PE or PP, which may be fiber-reinforced. However, channels 9, 10 can also be used, for example. foamable material such as one-component or two-component PU foam can be supplied.
    Since the processing temperature of the supplied through the channels 9,10 plastics often has a processing temperature 15 other than the processing temperature of that material which is supplied through the channel 8 and to which the temperature of the nozzle body is matched with the plates 1 to 6, and the Feeding channel 18 can be tempered, including this is surrounded by a jacket 19 which is supplied via a line 20 with tempering. 20
    To supply the jacket 13 of the nozzle 12 with tempering the connection part 17 is provided, which may be shrunk onto the nozzle 12 and in which the jacket 13 is connected to a conduit 21 for the temperature control medium. The channel 9 for the plastic material passes through the connection part 17. In the event that both channels 9 and 10 are supplied with the same material, there is the possibility of a common supply channel 18 for both
    Provide channels 9,10, wherein the connection part 16 then also serves as a distributor. Instead of a through-flow of a temperature control jacket 13 is of course here as well as the nozzles 12 and an electric heater conceivable. Since the connecting parts 16, 17 are located in the flow path of a stretched channel 8, its melt stream is split into two or more channels 8 a, 8 b, which lead around the connecting parts 16, 17. If it requires the geometry of the extrusion die, the supply channel 18 and the conduit 21 for supplying the jacket 13 of the nozzle 12 may also be arranged at an angle other than the angle of 90 ° shown here, wherein angle 35 is generally between 45 ° and 90 ° ° will be sufficient but of course also smaller angles are possible.
    If one or both nozzles 12 are to be exchanged, for example because of wear or a material change, only the four screws 7 have to be loosened and the plates 4 and 5 of -40 separated, whereupon the connecting parts 16 and 17 with the nozzle (s) 12. ························································································································································································································································································ · Φ "φ φ - 5 - taken out and can be exchanged for new or different nozzles 12 and connecting parts 16 and 17. If a channel is not needed, e.g. a nozzle 12 is removed and the connector 16 are replaced by another connector with fewer connections. If no nozzle is needed, then everything can be removed or one interrupts only the 5 material supply.
    If only one channel 9,10 or no channels 9, 10 are required, the existing holes can be easily closed. While the embodiment shown in Figures 1 to 3 has two central channels 9, 10, e.g. are more likely to fill a profile to be produced from the inside with an insulating and / or stabilizing or profile stiffening foam, are in the corner regions of the base profile forming channel 8 four channels 22 in the embodiment shown in Fig. 6 and 7 arranged, which are formed by nozzles, which may be constructed as described in connection with the embodiment of FIGS. 1 to 3 according to FIG. The connection part 16 in this case is a distributor which divides the melt flow supplied via the common feed channel 18 into four channels 22. Also the Anschiussteil 17 is present in a number of nozzles 12 corresponding number. For example, as shown in FIG. 7, the nozzles 12 with the channels 22 may be arranged so that the nozzles 22 are completely surrounded by a rectangular frame formed by the channel 8, so that the strands formed by the nozzles 22 are of material from the nozzles 8 are surrounded.
    Of course, it is possible to combine the embodiment of Fig. 1 to 3 with that of Fig. 6 and 7, so that in this case - apart from the channel 8 - a total of six further 25 channels 9, 10, 22 are present, through which different tempered plastics or composites can be supplied to produce co-extruded profiles of various types.
    权利要求:
    Claims (1)
    [1]
    5 1. • * Mtft 5 1. • * Mtft 10 2. 3. 4. 15 5. 6. 20 7. 25 8. 9. 30 10. 35 11. 12. ****** ** * · «» * * * * * * * * * ***** * * * * * * »• • • * * * * * ** * * - 6 - Claims: Extrusion die for an extrusion tool for producing composite profiles different materials, which are processed at different temperatures, wherein in a nozzle body (1 to 6) separate channels (8,9,10, 22) are provided, which open at the end face (15) of the extrusion die and through which different materials are conveyed , characterized in that at least one channel (9, 10, 22) of a replaceable in the nozzle body (1 to 6) recorded nozzle (12) is formed, which has a tempering device (13). Extrusion die according to claim 1, characterized in that the tempering the nozzle (12) relative to the surrounding nozzle body (1 to 6) isolated. Extrusion nozzle according to claim 1 or 2, characterized in that the tempering device (13) is a heating device, in particular an electric heater. Extrusion die according to claim 1 or 2, characterized in that the tempering device (13) is a cooling device. Extrusion die according to claim 3 or 4, characterized in that the tempering device (13) has at least one flow channel for a heating or cooling medium. Extrusion nozzle according to one of claims 1 to 5, characterized in that the nozzle (12) is a needle valve nozzle. Extrusion die according to one of claims 1 to 6, characterized in that the nozzle body (1 to 6) consists of at least two sections (1 to 6), that the nozzle (12) is accommodated in at least a first, end-side section (1) and at its end face (15) opposite end to a connection portion (4) is connected. Extrusion nozzle according to claim 7, characterized in that in the connection section (4) of the further through the nozzle (12) leading channel (18) and optionally existing supply lines (20, 21) for the tempering (13) by an angle between 45 ° and 90 ° are deflected. Extrusion nozzle according to claim 7 or 8, characterized in that in the connection section (4) a subsequently through the nozzle (12) leading supply channel (18) by a tempering device (19) is surrounded. Extrusion nozzle according to one of claims 7 to 9, characterized in that in the connection section (4) at least one connecting part (16,17) is arranged, to which the nozzle (12) is connected. Extrusion nozzle according to claim 10, characterized in that a connection part (16) has a channel (18) which opens out at the end face (15) and has a channel (9, 10, 22). Extrusion die according to claim 10 or 11, characterized in that a connection part (17) receives a supply line (21) for the tempering device (13) of the nozzle (12). 40 extrusion nozzle according to one of claims 7 to 12, characterized in that at least two of a nozzle (12) formed channels (9, 10, 22) are provided, and that in the connection section (4) a manifold from a common feed channel ( 18) is arranged in at least two channels (9, 10, 22). Extrusion die according to claim 13, characterized in that the distributor is formed by the connecting part (16).
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    同族专利:
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE3438448A1|1984-10-19|1986-04-24|Gebrüder Kömmerling Kunststoffwerke GmbH, 6780 Pirmasens|Plastics profile bar and process and crosshead die for the production thereof|DE102015009377A1|2015-07-18|2017-01-19|Heinz Gross|mixing tool|
    DE102018005060A1|2018-06-26|2020-01-02|Heinz Gross|shaping tool|US3640659A|1968-08-01|1972-02-08|Bristol Myers Co|Split die for extruding laminated tubing|
    DE2345049A1|1973-09-06|1975-03-20|Breyer Anton Fa|Thermoplastic laminates from plastics of differing props. - by heating different plastics in separate thermally insulated channels|
    DE3600396C2|1985-11-09|1988-05-19|Reifenhaeuser Gmbh & Co Maschinenfabrik, 5210 Troisdorf, De|
    EP0754535B1|1995-07-17|2000-04-12|Elf Atochem S.A.|Method for coextruding two materials having different temperatures|
    US5702786A|1996-04-22|1997-12-30|Greif Bros. Corporation|Process for preparing thermoplastic polyolefin resin articles of reduced hydrocarbon permeability|
    US7281917B2|2004-12-01|2007-10-16|Patwin Plastics, Inc.|Extrusion/reaction injection molding system|
    PL2062717T3|2007-11-13|2013-10-31|Sika Tech Ag|Method for manufacturing stiff plastic sections with improved heat insulation for window construction and the use|CN102909847A|2012-04-06|2013-02-06|湖北安信塑料模具有限公司|Assembling-type combined core extruding die|
    DE102012208677B4|2012-05-23|2018-08-02|Battenfeld-Cincinnati Germany Gmbh|Method and device for tempering plastic plastic material|
    ITVR20120162A1|2012-08-07|2014-02-08|Roverplastik S P A|PROCEDURE FOR THE PRODUCTION OF A PROFILE AND ITS PLANT|
    CN104723531A|2013-12-20|2015-06-24|杨俊奎|Co-extrusion type sandwich extrusion mouth mold die|
    CN106079350A|2016-08-02|2016-11-09|黄石金锐模具股份有限公司|A kind of multi-functional extrusion die for door-plate bound edge|
    DE102018122797A1|2018-09-18|2020-03-19|Kraussmaffei Technologies Gmbh|Device for molding a plastic component|
    CN110877447A|2019-10-24|2020-03-13|安徽森泰木塑科技地板有限公司|Mould for manufacturing foamed floor with wood texture|
    法律状态:
    2018-05-15| MM01| Lapse because of not paying annual fees|Effective date: 20170913 |
    优先权:
    申请号 | 申请日 | 专利标题
    AT0151310A|AT510023B1|2010-09-13|2010-09-13|extrusion die|AT0151310A| AT510023B1|2010-09-13|2010-09-13|extrusion die|
    PCT/AT2011/000358| WO2012034146A1|2010-09-13|2011-09-01|Coextrusion die having a temperature-control device|
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