Method for manufacturing sintered body

    公开(公告)号:US11780005B2

    公开(公告)日:2023-10-10

    申请号:US17951556

    申请日:2022-09-23

    IPC分类号: B29C43/08 B22F3/03 B30B11/10

    CPC分类号: B22F3/03 B30B11/10 B29C43/08

    摘要: Provided is a sizing apparatus including: a die set including a die plate that holds a die provided with a through hole to which a workpiece is to be supplied, and upper and lower punches that are to be inserted into the through hole to press the workpiece; a press main body that includes punch driving mechanisms that actuate the punches and in which the die set is configured to be attached to and detached from a predetermined position; and a turntable that is rotated on the die plate and supplies a workpiece to the die and discharges a workpiece from the die. The die set includes the turntable, and a supporting base on which the turntable is placed. The supporting base includes an axis positioning portion that is provided coaxially with a central axis of the turntable and positions the central axis at a predetermined position of the supporting base.

    APPARATUS AND METHOD FOR MAKING OBJECTS BY MEANS OF COMPRESSION MOULDING

    公开(公告)号:US20230219264A1

    公开(公告)日:2023-07-13

    申请号:US17997560

    申请日:2021-05-06

    摘要: An apparatus for forming an object comprises an extruding device (2) for supplying a continuous extrudate of polymeric material, at least one separating element for cutting the continuous extrudate thereby separating a dose (6; 106) of polymeric material from the continuous extrudate, at least one mould (5; 105; 205; 305; 405) comprising a first mould part (9; 109; 209; 309) and a second mould part (8; 108; 508) which are movable relative to one another between an open position, in which the dose (6; 106) is rested on a receiving part selected from the first mould part (9; 109; 209; 309) and the second mould part (8; 108; 508), and a closed position, in which a forming chamber is defined between the first mould part (9; 109; 209; 309) and the second mould part (8; 108; 508), the forming chamber having a shape corresponding to said object. The apparatus further comprises a thermal conditioning device (11; 111; 211; 311; 411) configured to act on the dose (6; 106) while the dose (6; 106) is positioned in said at least one mould (5; 105; 205; 305; 405) and before the closed position is reached, by thermally conditioning at least one surface portion (20; 120) of the dose (6; 106) which is distinct from a resting portion (17; 117) of the dose (6; 106) which is resting on the receiving part.

    METHOD AND MOULD FOR MAKING HOLED OBJECTS FROM PLASTIC MATERIAL

    公开(公告)号:US20220371235A1

    公开(公告)日:2022-11-24

    申请号:US17782030

    申请日:2020-11-30

    发明人: Zeno ZUFFA

    IPC分类号: B29C43/36 B29C43/08 B29C43/58

    摘要: A method for making an object (2) from plastic material, having a wall (21) and a through hole (22) formed in the wall (21), comprises the following steps: preparing a dose (20) of extruded plastic material; preparing a mould (1), having a first half mould (11) and a second half mould (12), mutually movable along a longitudinal axis (A1), wherein the first half mould (11) includes a body (111) and a plunger (112), the plunger (112) being movable relative to the body (111) between a retracted position and an advanced position; positioning the dose (20); closing the mould (1) to form a closed moulding space (V); moving the plunger (112) from the retracted position to the advanced position to squeeze the dose (20) so that the plastic material is forced to occupy the moulding space (V).

    Sizing apparatus
    6.
    发明授权

    公开(公告)号:US11491540B2

    公开(公告)日:2022-11-08

    申请号:US16640096

    申请日:2017-08-21

    IPC分类号: B29C43/08 B22F3/03 B30B11/10

    摘要: Provided is a sizing apparatus including: a die set including a die plate that holds a die provided with a through hole to which a workpiece is to be supplied, and upper and lower punches that are to be inserted into the through hole to press the workpiece; a press main body that includes punch driving mechanisms that actuate the punches and in which the die set is configured to be attached to and detached from a predetermined position; and a turntable that is rotated on the die plate and supplies a workpiece to the die and discharges a workpiece from the die. The die set includes the turntable, and a supporting base on which the turntable is placed. The supporting base includes an axis positioning portion that is provided coaxially with a central axis of the turntable and positions the central axis at a predetermined position of the supporting base.

    Distributor device
    7.
    发明授权

    公开(公告)号:US11318645B2

    公开(公告)日:2022-05-03

    申请号:US16332683

    申请日:2017-09-13

    摘要: A distributor device is arranged for controlling a plurality of actuators, each of which is intended to open or close a corresponding mould.
    The distributor device comprises a rotary part rotatable about an axis and connectable to the actuators, and a stator part in fluid communication with the rotary part.
    The stator part is provided with: a low pressure distributor element, configured to selectively send an actuating fluid at a first pressure to the rotary part, so that one actuator of the plurality of actuators moves a first component and a second component of the corresponding mould closer to each other from a distanced position to an intermediate position; a high pressure distributor element, configured to selectively send an actuating fluid at a second pressure higher than the first pressure to the rotary part, so that the actuator moves the first component and the second component of the corresponding mould closer to each other from the intermediate position to a forming position; a maintaining distributor element, configured to selectively send an actuating fluid to the rotary part, so that the actuator maintains the first component and the second component in the forming position.

    APPARATUS FOR COMPRESSION MOULDING CONCAVE OBJECTS

    公开(公告)号:US20210331356A1

    公开(公告)日:2021-10-28

    申请号:US17284288

    申请日:2019-10-03

    摘要: An apparatus comprises: a dispensing device for dispensing at least one polymeric material; a severing element for severing a dose of polymeric material from the polymeric material dispensed by the dispensing device; a transport element for transporting the dose; a mould comprising a male mould element and a female mould element, the female mould element being positioned above the male mould element. The transport element is configured to perform a first movement by moving along a path directed from the dispensing device towards the mould, so as to bring the dose to the mould. Moreover, the transport element is configured to perform, in addition to the first movement, a second movement by rotating about an axis, so as to turn the dose from a first orientation with which the dose is received by the transport element, to a second orientation with which the dose is released by the transport element onto the male mould element.

    Apparatus and method for processing doses

    公开(公告)号:US10906213B2

    公开(公告)日:2021-02-02

    申请号:US15767011

    申请日:2016-10-07

    摘要: An apparatus including a co-extrusion device for extruding a multi-layer structure having at least one primary layer and at least one secondary layer, so that the multi-layer structure leaves the co-extrusion device along an exit direction; a mould provided with a pair of elements, at least one of the elements being movable towards the other in a moulding direction, so as to compression mould an object from a multi-layer dose which was severed from the multi-layer structure; a transport device for carrying the dose towards the mould; an arrangement for modifying orientation of the dose while the dose is being transported by the transport device, so that the dose is introduced into the mould with an orientation in which the secondary layer extends transversely to the moulding direction.