• 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:
    A method for producing a molded part (3) by means of a tool, which has a die (7) and a mandrel (2), wherein in a first step, an insert part (4) to be back-injected or back-foamed is inserted into the die (7), so that one edge (6) of the insert (4) protrudes beyond an edge of the die (7) or a die-side slide (1) or frame, and in a second step, the tool is closed, so that between the mandrel (2) and the die (7) a cavity is formed, wherein in a third step, the cavity is filled with an injection molding material or a foam, characterized in that in step two, the protruding edge (6) of the mandrel (2) in the direction of the die (7) bent becomes.
    公开号:AT511735A1
    申请号:T1145/2011
    申请日:2011-08-09
    公开日:2013-02-15
    发明作者:
    申请人:Georg Kaufmann Formenbau Ag；
    IPC主号:
    专利说明:

    25 16:41:46 09-08-2011 5/17 25 16:41:46 09-08-2011 5/17
    • · I 1 • -1 -
    The invention relates to a method for producing a molded part by means of a tool, which has a die and a mandrel, wherein in a first step, a behind spouting or behind foaming Einlegeteii is inserted into the die, so that an edge of the insert over an edge of the die or a die-side slide or frame, and in a second step, the tool is closed so that a cavity is formed between the mandrel and the die, wherein in a third step, the cavity is filled with an injection molding material or a foam.
    Furthermore, the invention relates to a molded part with a back-injected or behind foamed Einlegeteii.
    The term "depositors" in this document means any materials which can be introduced into the matrix and are sprayable behind, in particular decorative materials, fabrics, films, etc. The term "injection molding" is understood in this document as well as extrusion molding and extrusion molding.
    A method of the initially mentioned type has become known, for example, from EP 1 144 177 B1. In the known method, an injection molding tool is used, which aulweist a die and a mandrel, which form a subsequently referred to as a cavity cavity. In the tool, an insert, for example, a Dekormateriai inserted, which is injected by filling the cavity with plastic behind, so that the inserted material is pressed against the Kavitätswand. In order to avoid damage to the insert, the plastic is injected at low pressure. For this purpose, the injection mold is initially not completely closed, but remains slightly open, for example, 2 to 10 mm. To go to club / 23200 m r nn / r ö / nni 1 -i c. yi 4 DD07 p ηη * / ηΐ7 25 16:42:25 09-08-2011 6/17
    «» «·« «· · T V« «* ··· · · · ·« «« ··· «·« «• · ♦ · · * I ·« «· ........ ...- 2- 'Avoid that in this position injected plastic leaking over the edge region of the cavity, a so-called dipping edge gap is provided. The pre-injection into the die inserted upper extends into the dipping edge gap and is trapped in the dipping edge gap when fully closing the injection mold, which takes place during the injection of plastic
    The main problem in the back injection of inserts is distinguished in diving edge play. This is necessary for the venting of the tool cavity. If the dipping edge play is too large, the plastic overspreads the insert in the folding area and prevents or damages the subsequent folding of the insert. If the dipping edge clearance is too short, the insertion of the punch will cause the insert to be compressed so that wrinkles form in the visible area of the component.
    A disadvantage of the known embodiments, it is especially because a complex post-processing is required, since the depositors are on the edge overhanging and thus must be everted in a post-processing step and attached or trimmed. This post-processing is expensive and time consuming and also requires certain component qualities to be executed damage-free.
    It is therefore an object of the invention to overcome the above-mentioned disadvantages.
    This object is achieved by a method of the type mentioned in the present invention, that during the closing of the tool, the protruding edge is bent by the mandrel in the direction of the die.
    The solution according to the invention makes it possible to carry out no post-processing steps on the resulting components during the back-injection of inserts. Since the protruding decorative foil is bent and fastened directly in the tool. By bending over by means of the mold core, the edge of the insert part comes to rest within the cavity when the injection mold is closed. With the solution according to the invention, it is possible to perform transcripts, for example, in the angle of 90 ° and 180 ° directly in the injection mold. Also, the above-mentioned problem with the diving edge clearance is solved by the invention, since the dipping edge clearance can be chosen a bit larger, because if the plastic overflows a few millimeters, this no longer matters because the post is eliminated. A side effect of the N2011 / 23200 09/08/2011 16:45
    No .: R987 P.006 / 017 25 16:43:10 09-08-2011 7/17 • · ·
    According to the invention solution is that foil clips omitted for fixing the insert in the tool. Until now, it was customary to continue to pull the film over the slider and fasten. Since the foil is now cut off, the clamps also fall away. The foil holds by its form in the matrix.
    Advantageously, the insert is inserted so that its protruding edge encloses an angle greater than zero degrees with a surface of the die or the die-side slide or the die-side frame. By this measure, it can be ensured in a simple manner that the edge of the insert is bent when closing the injection molding of the molding.
    It has proven to be particularly advantageous when an insert made of an elastic or plastic material is used. In this way, it is possible to achieve a projection of the inserter excess over the die.
    The above object can also be solved with a molding of the type mentioned, which it is produced by the method according to the invention.
    For a better understanding of the invention, this will be explained in more detail with reference to the following figures.
    Each shows in a highly schematically simplified representation:
    Fig. 1 shows an injection molding tool in an open state with a molded body with a folded over by 90 ° Umbugkante
    Fig. 2 shows the injection molding tool of FIG. 1 with a molded part with a folded over by 180 ° Umbugkante and
    Fig. 3 shows a detail of a molded part according to the invention with bent in an injection mold Umbug.
    By way of introduction, it should be noted that in the differently described embodiments, the same parts are denoted by the same reference numerals or the same designations of construction site The disclosures contained in the entire description are analogously transferred to identical parts with the same reference symbols or identical component designations can. Also, the location information chosen in the description, such as top, bottom, side, etc. related to the immediately described and illustrated figure and are to be transferred to the new situation mutatis mutandis when a change in position. Furthermore, individual features or combinations of features from the different exemplary embodiments shown and described can also represent independent, inventive or inventive solutions. All statements on ranges of values in the description of the present invention should be understood to include any and all sub-ranges thereof, e.g. the indication 1 to 10 should be understood to include all sub-ranges, starting from the lower limit 1 and the upper limit 10, i. all subregions begin with a lower limit of 1 or greater and end at an upper limit of 10 or less, e.g. 1 to 1.7, or 3.2 to 8.1 or 5.5 to 10.
    Fig. 1 shows a molded part 3 with a folded over by 90 ° Umbugkante. The molded body 3 is produced by means of an injection molding tool which has a die 7 and a mandrel 2. To produce the molded body 3 according to the invention, in a first step, an insert member 4 which is to be injected behind or behind the foaming insert is inserted into the die 7. An edge 6 of the insert piece projects beyond an edge of the die or a die-side slide 1 or frame. In the following, the edge 6 is also referred to as depositor excess 6. The slider 1 surrounds the visible edge and fixes the insert 4 so that the depositor excess 6 is slightly pressed against the mandrel 2.
    In order to facilitate the Umbug in the tool, the insert 4 can be tailored so that a small depositor excess 6 protrudes over the slider 1. Preferably, the insert 4 may be trimmed so that the inlay excess 6 projects from the die 7 and encloses an angle greater than zero degrees with the surface of the die 7 or the slider 1 or the frame. N2011 / 23Z00 η n / no t on 1 1 i o Λ c M " 0 (107 p nnfi / ni7 25 16:44:32 09-08-2011 9/17
    • * * * * * * * * I V · · · · · · · »· ··· # * # ··
    It has proven to be advantageous if the material of the insert 4 is a plastic and / or elastic material. It should be noted, however, that as a material for the insert 4 in principle, any material can be used which is suitable for a back injection or foaming.
    In a second step, the tool is closed. Here, the depositor excess 6 is bent by the mandrel 2 in the direction of the die 7. During the mold closing movement of the mandrel 2 moves into the die 7 and bends the depositor excess 6 at a dip edge gap 5. In a third step, the cavity is filled with an injection molding material or a foam
    The incoming plastic melt front pushes the insert 4 and the depositor excess 6 to the corresponding cavity outer walls and thereby forms the radius and the illustrated in Fig. 2 180 'Umbug achieved. In contrast to the prior art, the depositor excess 6 does not protrude into the dipping edge gap 5 and is bent in the tool.
    As can be seen from FIG. 3, the folded inlay excess 6 of the finished molded part 3 terminates flush, so that no further post-processing is required any more. The insert 4 may in the illustrated example, for example, a surface 8 in the form of a film and an adjoining body made of foam.
    The Ausfährungsbeispiele show possible embodiments of the method according to the invention or the molding according to the invention, it being noted at this point that the invention is not limited to the specifically illustrated embodiments thereof, but also various combinations of the individual embodiments are mutually possible and this variation possibility due to Teaching for technical action by objective invention in the skill of those working in this technical field is the expert. So are all conceivable Ausfährungsvarianten, which are possible by combinations of individual details of the illustrated and described embodiment variant, includes the scope of protection.
    For the sake of the order, it should be pointed out that for a better understanding of the structure of a used injection molding tool, this or its resistant 1/23200 kl ^ ΛΠ / no / ΡΛ1 1 1 Λ. / 1 * 7 Thu Q 7 p nnQ / m7 25 16:45:17 09-08-2011 10/17
    Some parts have not been drawn to scale and / or enlarged and / or scaled down. N2Q11 / 23200 M r ΛΛ ίΛΠ / ΓΊΛΙ Η * π. fl "7 Df1Q7 p mn / m7 25 16:46:14 09-08-2011 12/17« * · · ♦ · · φ «·« * · 9 * · l I * · «· * t · · - 1 -
    Reference signs 1. Slider 2. Molding core 3. Molding (component) 4. Insert (sill) 5. Dipping edge gap 6. Edge (depositor excess) 7. Die 8. Surface of the insert N2011 / 23200 rw-wnQ / on-11 1K / I0 Mr RQR7 P. 012/017
    权利要求:
    Claims (5)
    [1]
    25 16:45:37 09-08-2011 11/17 25 16:45:37 09-08-2011 11/17

    1. A method for producing a molded part (3) by means of a tool, which has a die (7) and a mandrel (2), wherein In a first step, an insert part (4) to be back-injected or backfoamed is inserted into the die (7) so that an edge (6) of the entry part (4) projects beyond an edge of the die (7) or a die-side slide (1) or frame , and in a second step the tool is closed so that a cavity is formed between the mandrel (2) and the die (7), wherein in a third step the cavity is filled up with an injection molding material or a foam, characterized in that in step two the protruding edge (6) of the mandrel (2) is bent in the direction of the die (7).
    [2]
    2. The method according to claim 1, characterized in that the insert (14) is inserted in step one so that its protruding edge (6) an angle greater than zero degrees with a surface of the die (7) or the die-side slide (1 ) or the matrix-side frame
    [3]
    3. The method according to any one of claims 1 or 2, characterized in that in step one, an insert part (14) is used made of an elastic material.
    [4]
    4. The method according to one of claims 1 to 3, characterized in that in step one, an insert (14) is used made of a plastic material.
    [5]
    5. molded part (3) with a back-injected or foam-backed insert (14), characterized in that it is prepared by a method according to one of claims 1 to 4 Georg Kaufmann Formenbau AG by AnwälteKwger & Partner Attorney at Law N2011 / 23200 no / nQ / 9mi iR '/ is Nr RQ87 P.011 / 017
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE3634596A1|1986-10-10|1988-04-21|Audi Ag|Process and apparatus for using a composite technique to produce body parts|
    JPH01218820A|1988-02-29|1989-09-01|Showa Denko Kk|Treatment method for stamping molding die and skin end section|
    JPH04255312A|1991-02-07|1992-09-10|Toyoda Gosei Co Ltd|Molding method of molded object with skin and mold used therefore|
    DE4127241A1|1991-08-17|1993-02-18|Bayer Ag|Thermoplastics moulding mfr. with decorative layer covering edges - in which layer is laid in mould cavity and shaped by closing specified mould to form internal edge groove into which part is injection moulded|
    JPH05162168A|1991-12-18|1993-06-29|Toyoda Gosei Co Ltd|Method for in-mold molding of skin|
    DE4235769A1|1992-10-23|1994-04-28|Riesselmann & Sohn|Prodn. of plastic carrier with decorative layer and prodn. mould - involves placing decorative layer in tool cavity, turning up and folding back end section to form pocket filled by injected plastic forming carrier|
    JPH07195422A|1993-12-30|1995-08-01|Tokyo Seat Kk|Skin integrating molding method and apparatus|
    JPH07195423A|1993-12-30|1995-08-01|Tokyo Seat Kk|Skin integrating molding method and apparatus|
    DE4408446A1|1994-03-12|1995-09-14|Otto Deuschle Modell Formenbau|Film-covered plastic component prodn. and equipment|
    JPH1177739A|1997-09-10|1999-03-23|Toyo Tire & Rubber Co Ltd|Method for integral molding of skin and resin core body|
    EP1090731A1|1999-10-06|2001-04-11|Volkswagen Aktiengesellschaft|Apparatus and method for manufacturing a moulded part lined with a decoration and for folding over and cutting the decoration in the mould|
    WO2006002019A1|2004-06-15|2006-01-05|Johnson Controls Technology Company|Vehicle component and method for making a vehicle component|
    WO2006002020A2|2004-06-15|2006-01-05|Johnson Controls Technology Company|Vehicle component and method for making a vehicle component|
    DE102006005303A1|2006-02-06|2007-08-16|Franz Josef Summerer|Method and device for molding a plastic component on a plastic part|
    EP2239123A1|2009-04-06|2010-10-13|Hon Hai Precision Industry Co., Ltd.|Decorated molded surface|CN110198867A|2017-02-01|2019-09-03|河西工业株式会社|Inner-decoration component for automobile|JP3316809B2|1994-11-29|2002-08-19|高島屋日発工業株式会社|Method for producing skin-integrated synthetic resin molded article and molding die therefor|
    DE19903338C1|1999-01-28|2000-07-06|Franz Josef Summerer|Pressure injection mold for rear-injection of decorative materials such as cloth, leather or sheet to form shell molding has replaceable combination cutting slide at edges, for rapid low cost replacement on wear|
    EP1301324A4|2000-06-12|2008-04-30|Green Tokai Co Ltd|Injection co-molding with offset parting line|CH711891A2|2015-12-08|2017-06-15|Georg Kaufmann Formenbau Ag|Apparatus for producing a composite molding and method for producing a corresponding composite molding.|
    CH717105A2|2020-02-03|2021-08-16|Georg Kaufmann Formenbau Ag|Injection molding tool and method for producing composite molded parts.|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    AT11352011|2011-08-05|
    ATA1145/2011A|AT511735B1|2011-08-05|2011-08-09|METHOD FOR PRODUCING A REFLECTED FORM PART|ATA1145/2011A| AT511735B1|2011-08-05|2011-08-09|METHOD FOR PRODUCING A REFLECTED FORM PART|
    EP12179243.6A| EP2554352B2|2011-08-05|2012-08-03|Method for producing a back-moulded part|
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