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US 11,826,929 B2Granted
Injection mould for producing complex moulded parts from plastic
AssigneeFoboha (Germany) GmbH
InventorRainer Armbruster
Life of this patent
Estimating the term…
Abstract
An injection mould having a first mould half (17) and a second mould half (18) which can be displaced relative to the first in a first direction (z). At least one of the mould halves has a slider arrangement (1) for forming a mould cavity (15). The slider arrangement (1) includes at least two sliders (2) which are moveable relative to one another between a closed and an open position and which are arranged so as to be displaceable with respect to a component (3), adjacent to the sliders (2), of the associated mould halves (17, 18) by means of first and second guide means (6, 7) respectively. A slider drive (4) is used to displace the sliders (2) between the open position and the closed position.
Claims20
An injection mold comprising:
- a first mold half and a second mold half which is displaceable relative to the first mold half in a first direction (z), wherein at least one of the mold halves has a slide arrangement having several slides for forming a mold cavity, having
- at least two slides which are movable relative to one another between a closed position and an open position and which, by way of respective first and second guide means are arranged so as to be displaceable with respect to a component, adjacent to the slides, of the associated mold half, and
- a slide drive having one set of third and fourth guide means dedicated, respectively, to each slide of the several slides, which third and fourth guide means are operatively connected to one another and to only their respective slide, and which serve to displace their respective slide between the open and the closed position, wherein
- each slide has a holding-shut surface which is arranged opposing to an opening direction of the slides and, in the closed position of the injection mold, interacts with a correspondingly arranged counter-surface arranged at an opposite mold half of the injection mold in an opposite direction, such that the slides are locked in a direction opposite to a closing direction against the injection pressure acting during injection in the mold cavity upon each slide within the mold cavity such that the slide drive is relieved of negative forces resulting from the pressure in the mold cavity during injection, and
- wherein each slide is operatively coupled to its respective first, second, third, and fourth guide means in a substantially identical manner.
2 more elements
An injection molding method, comprising:
- forming a mold cavity by advancing a first mold half relative to a second mold half along an axis (z) in a first direction, wherein at least one of the mold halves has a slide arrangement having several slides;
- during the forming, moving the several slides relative to one another between an open position and a closed position by way of respective first and second guide means that are arranged to be displaceable with respect to a component, adjacent to the slides, of the associated mold half;
- further during the forming, operatively connecting third and fourth guide means to one another, wherein a single set of third and fourth guide means is dedicated to each slide of the several slides and wherein the operatively connecting the third and fourth guide means serves to displace their respective slide between the open position and the closed position, wherein each slide is operatively coupled to its respective first, second, third, and fourth guide means in a substantially identical manner;
- and
- opening the mold cavity by withdrawing the first mold half relative to the second mold half along the axis (z) in a second direction, the second direction being opposite the first direction, wherein the opening further includes moving the at least two of the several slides relative to one another between the closed position and the open position and operatively reversing the third and fourth guide means from one another to displace their respective slide between the closed position and the open position.
2 more elements
A slide arrangement for forming a complex product during injection molding, comprising:
- a plurality of slides couplable to a portion of a mold, the several slides arranged to move between an open position and a closed position, the plurality of slides cooperating to form a mold cavity in the closed position;
- a plurality of sets of first and second guide means, each set of first and second guide means dedicated to one of the plurality of slides, the plurality of sets of first and second guide means being displaceable with respect to a component to guide the plurality of slides between the open and closed positions;
- a slide drive having a plurality of sets of third and fourth guide means, each set of third and fourth guide means dedicated to one of the plurality of slides, the third and fourth guide means of each of the plurality of sets of third and fourth guide means being operatively connected to one another and to only their respective slide, and the third and fourth guide means of each of the plurality of sets of third and fourth guide means arranged to displace their respective slide between the open and the closed position, wherein each slide is operatively coupled to its respective first, second, third, and fourth guide means in a substantially identical manner.
Dependencies are inferred from the claim text.