摘要:
The invention relates to a device for converting a rotary movement into a linear movement of a machine which has a rack (21) that is connected to operating components, especially a primary forming or re-forming machine. A first hollow shaft motor is provided, enveloping the longitudinal axle of the rack (21) in the area facing away from the operational components. The rotor (13) of said first hollow shaft motor (11) is connected to a transmission (30) whose input axle is identical to the axle of the hollow shaft motor (11) and which has at least one output axle that is connected to at least one driving toothed wheel (34) that meshes with the rack (21).
摘要:
The invention relates to a toggle linkage closure unit for an injection moulding machine, comprising a stationary platen (8), a movable platen (6), a support plate (7) and a toggle linkage (4) arranged between the support plate (7) and the movable platen (6). A cross head (5) that is in operative connection with the toggle linkage (4) is moved by means of an electric drive (10). According to the invention, in addition to the electric drive (10), at least one hydraulic drive having a piston-cylinder system (11) is provided, the piston-cylinder system being in operative connection with the cross head (5). The length (L Z ) of the cylinder (11a) and the length (L S ) of the piston rod (11b) are designed and aligned in relation to one another in such a way that the hydraulic drive can follow the travel path (S) of the cross head (5) during the travel of the movable platen (6) between an open position of the closure unit, in which the toggle linkage (4) is folded, and the closed position, in which the toggle linkage (4) is in a predeterminable extended position and closing force is built up.
摘要:
A drive arrangement for an injection molding machine (1) embodies a linear drive (5,10,11) for moving and/or locking mold mounting plates (2,3), or rather the molds mounted thereon. The linear drive is provided with at least one toothed rack (5) which on the drive output side is in direct functional connection with the mold mounting plate (3), and on the drive input side presents series of teeth (12a,12b) that mesh with at least one drive gearwheel (16,17).
摘要:
The invention relates to a device for converting a rotary movement into a linear movement of a machine which has a rack (21) that is connected to operating components, especially a primary forming or re-forming machine. A first hollow shaft motor is provided, enveloping the longitudinal axle of the rack (21) in the area facing away from the operational components. The rotor (13) of said first hollow shaft motor (11) is connected to a transmission (30) whose input axle is identical to the axle of the hollow shaft motor (11) and which has at least one output axle that is connected to at least one driving toothed wheel (34) that meshes with the rack (21).
摘要:
A mold (110) for resin-seal-molding an electronic component is constituted by a first mold (111) and a second mold (112). A plurality of mold structure units (molds 110) are arranged as stacked, wherein a substrate supplying portion (substrate supply-set surface 113) for supplying a single before-resin-seal-molding substrate (400) having an electronic component mounted thereon is provided at a mold face (PL) of the molds. Further, a clamp mechanism (press frame mechanism 130) for simultaneously applying clamping pressure to each of the plurality of mold structure units (molds 110) arranged as stacked. With this structure, the overall structure of the mold (110) for resin-seal-molding an electronic component mounted on the substrate (400) can be simplified. Additionally, resin flash formation on the substrate surface due to variation in the thicknesses of the substrates (400) when resin-seal-molding the electronic component is prevented.
摘要:
Bei einer holmlosen Zwei-Platten-Spritzgießmaschine mit einer relativ zum Maschinenbett (2) unbeweglichen und einer gegenüber dieser bewegbaren Formaufspannplatte (3,4), einem die bewegbare Formaufspannplatte (4) betätigenden Verfahrmechanismus (24-27), einer Einrichtung (17) zum Schließkraftaufbau und einer Einrichtung zur Kompensation der beim Schließkraftaufbau auftretenden Verformungskräfte ist erfindungsgemäß vorgesehen, daß der Verfahrmechanismus (24-27) und die Einrichtung (17) zum Schließkraftaufbau voneinander entkoppelt sind, wobei die Einrichtung zum Schließkraftaufbau mindestens eine Zugstange (13) aufweist, die sowohl die feststehende als auch die bewegbare Formaufspannplatte unterhalb des Werkzeugeinbauraums (7) durchsetzt, und die an einer der Platten (3) lösbar befestigt ist und an der anderen Platte (4) mittels einer Spannvorrichtung (17), die Schließkraft bewirkend, verriegelbar ist, während die Einrichtung zur Kompensation der Verformungskräfte mindestens ein lösbar an einer Platte (3) befestigter, mit seiner dieser Platte entgegengesetzten Stirnfläche (30) an die gegenüberliegende Platte (4) andrückbarer starrer Abstandhalter (28) ist.
摘要:
The invention relates to a tandem mold for creating injection molded parts from synthetic material. Said tandem mold comprises a first portion (2), a second portion (4), a third portion (6), and guide means (20, 22, 26, 28). A first parting surface is defined between the first portion (2) and the third portion (6), and a second parting surface is defined between the second portion (4) and the third portion (6). Said mold comprises, for each parting surface, at least one mechanical stop (44) movable between a first position, wherein said stop prevents the drive means from reaching the closed position of the mold, and a second position, or retracted position, wherein the mold is free to reach the closed position thereof.