Abstract:
Es wird ein Formwerkzeug zum Anformen eines Formabschnitts an ein plattenförmiges Werkstück vorgeschlagen, umfassend eine Werkzeugform mit einem Unterwerkzeug (22) und einem Oberwerkzeug (30), das zusammen mit dem Unterwerkzeug (22) einen Formhohlraum (42) zur Anformung des Formabschnitts begrenzt, das zumindest bereichsweise aus einem elastisch verformbaren Kunststoff gefertigt ist und das eine Dichtlippe (36) hat, die in einer Grundstellung an einer Anlagefläche zur Dichtung des Formhohlraums anliegt und zur Ausbildung einer Kavitätsöffnung gegen die Wirkung einer Rückstellkraft von der Anlagefläche abhebbar ist, wobei die Werkzeugform zumindest eine Kunststoffwand hat, die den Formhohlraum (42) begrenzt. Es ist mindestens ein Haltemittel (44) für ein Einlegeteil (16) vorgesehen. Das Haltemittel ist ein Einleger der Kunststoffwand der Werkzeugform. Alternativ durchgreift das Haltemittel (44) den Kunststoff der Werkzeugform, wobei es in den Formhohlraum (42) ragt. Auch kann das Haltemittel an einer Außenseite der Kunststoffwand der Werkzeugform angeordnet sein und durch die Kunststoffwand hindurch in den Formhohlraum (42) wirken oder einstückig mit der Kunststoffwand der Werkzeugform ausgebildet sein und in den Formhohlraum (42) ragen.
Abstract:
An apparatus for molding a part having ferromagnetic pigments is disclosed. A magnetic field, generated by an electromagnet, is set up adjacent the wall of the part cavity that will define the A-surface of the part. A ferromagnetic pigment is combined with the resin. When the electromagnet is activated, the magnetic field attracts the ferromagnetic pigment to collect near the cavity wall that will define the A-surface. The apparatus of the disclosed inventive concept comprises a mold, a part cavity formed in the mold, and an electromagnet positioned adjacent the part cavity whereby a magnetic field can be exerted on the part cavity. The electromagnet may be of any of several types, including a coil or a wire grid. The electromagnet may be embedded in the mold or may be placed adjacent to the mold.
Abstract:
This is a molding system with inserts placed on the die and/or the punch of the mold, which allows to obtain molded products with co-molded ferromagnetic inserts on its surfaces.
Abstract:
본 발명은 영구자석 워크홀딩 장치에 관한 것으로서, 보다 상세하게는 영구자석을 회전시키거나 평행이동시켜 자기 흐름을 조절하는 영구자석 워크홀딩 장치에 관한 것이다. 본 발명에 따른 영구자석 워크홀딩 장치는, 밑판과 부착면을 가지는 옆판을 포함하는 요크; 상기 요크와 이격되어 상기 요크 내부에 위치하며, 부착면을 가지는 폴피스; N극은 상기 폴피스에 접하고, S극은 상기 요크의 옆판에 접하도록 상기 요크의 옆판과 상기 폴피스 사이에 삽입 배치되는 고정영구자석; 및 회전가능하고, 회전축 주변에 회전방향으로 서로 다른 자기극성이 교대로 배치되며, 상기 요크의 옆판과 상기 폴피스 사이의 공간을 적어도 일부분이 통과하고, 상기 폴피스의 부착면을 통과하는 자기흐름의 세기를 회전각에 따라 조절하여 대상물을 부착하거나 탈착할 수 있도록 하는 제어영구자석; 을 포함한다. 본 발명에 따르면, 수동이나 소형DC모터를 사용하여 주영구자석의 회전 시에만 낮은 순간전류를 소모해 간편하게 영구자석 워크홀딩 장치를 구동하고 더 이상의 전류공급 없이 부착력을 영구적으로 유지할 수 있다. 또한, 본 발명에 따르면, 자기 흐름을 직선적으로 구현하여 안정적인 자기 흐름을 만들고 유지할 수 있어 장치 운영이 안정적이고, 제어가 용이하며, 잔류자기의 발생 또한 최소화할 수 있다.
Abstract:
A fabric mold liner includes a flexible fabric substrate and bounded regions of cured binder encapsulating fibers of the fabric substrate and carrying magnetically attractable particles. A liquid containing ferrous particles in suspension in a binder is deposited on the substrate in discrete, selected regions arranged to correspond to magnetic liner retention points in a mold cavity. The mold liner is used in molding a foam article. The liner is inserted into a mold cavity with the liner positioned such that the bounded regions carrying the binder align with magnetic liner retention points of internal surface. A foamable resin is introduced into the mold and is caused to expand to fill the mold cavity and cover an exposed surface of the liner, such that the liner becomes bonded to, and becomes a part of, a foam body formed by the resin.
Abstract:
A method of manufacturing a wind turbine blade shell part comprising fibre material impregnated with cured resin is described. The method comprises the steps of : a) providing a first mould part (110) having a first forming surface (112) with a contour that defines at least a part of an outer surface of turbine blade shell part, b) arranging fibre material in the first mould part, the fibre material comprising fibres of a magnetisable material, c) providing a resin in the first mould part simultaneous with and/or subsequent to step b), and d) curing the resin in order to form the wind turbine blade shell part or wind turbine blade (150). The fibre material is retained against the first forming surface by use of magnet means (114, 116, 118) during step b) and/or step c). A mould part comprising magnet means (114, 116, 118) and a wind turbine blade are also described.
Abstract:
A fabric mold liner includes a flexible fabric substrate and bounded regions of cured binder encapsulating fibers of the fabric substrate and carrying magnetically attractable particles. A liquid containing ferrous particles in suspension in a binder is deposited on the substrate in discrete, selected regions arranged to correspond to magnetic liner retention points in a mold cavity. The mold liner is used in molding a foam article. The liner is inserted into a mold cavity with the liner positioned such that the bounded regions carrying the binder align with magnetic liner retention points of internal surface. A foamable resin is introduced into the mold and is caused to expand to fill the mold cavity and cover an exposed surface of the liner, such that the liner becomes bonded to, and becomes a part of, a foam body formed by the resin.
Abstract:
A fastening member (10) that is capable of attachment to a molded article is disclosed. The fastening (26) member may include at least one fastener element (24) extending from a base (12) and an anchor layer attached to the base. The anchor layer may be coated with a magnetically attractable coating (36, 38). The magnetically attractable coating may be substantially continuous (38) on select portions of the anchor layer and discontinuous (36) on other select portions of the anchor layer.
Abstract:
The hybrid part of the invention includes a metal body (14A, 14B) and a body of a plastic material (16) partially covering the metal body (14A, 14B). The metal body (14A, 14B) includes first and second opposite surfaces (18A1, 18A2, 18B1, 18B2). The first and second opposite surfaces (18A1, 18A2, 18B1, 18B2) respectively include first and second areas (22A1, 22A2, 22B1, 22B2) free from the plastic material and including at least one punched area (26A, 26B). During the part manufacturing method, the areas (22A1, 22A2, 22B1, 22B2) of the metal body (4A, 14B) to be free from the plastic material are clamped between first and second clamping surfaces (32A1, 32A2, 32B1, 32B2), and the areas (22A1, 22A2, 22B1, 22B2) clamped between the clamping surfaces (32A1, 32A2, 32B1, 32B2) of the mould (10) are punched during the closing of the mould (10).