Patent classifications
B29C33/10
PROCESS FOR MOULDING AND RELATIVE MACHINE FOR MOULDING
Process and relative machine for moulding a thermoplastic material for producing a finished article having a shape, wherein the process comprises: providing a mould (99) comprising a first (1) and a second half-mould (2) each having a respective conformation surface (3, 4) which define, with closed mould, a cavity (5) having, in a conformation configuration, the shape; making a semi-finished product (70) made of the thermoplastic material; closing the mould (99) with the semi-finished product (70) interposed between the conformation surfaces (3, 4); admitting a heating fluid into the cavity (5) for heating the semi-finished product (70) permeable to the heating fluid; arranging the cavity (5) in a compacting configuration in which the cavity (5) coincides with a sub-portion of the cavity (5) in the conformation configuration; with the cavity (5) in the compacting configuration and the heating fluid into the cavity (5), compressing the semi-finished product (70) between the conformation surfaces (3, 4); subsequently to compressing the semi-finished product (70), arranging the cavity (5) in the conformation configuration while keeping the heating fluid into the cavity (5), wherein the semi-finished product (70) elastically expands for completely occupying the cavity and assuming the shape; subsequently, evacuating the heating fluid from the cavity (5) for cooling the semi-finished product (70) for obtaining the finished article with the shape; opening the mould (99) and extracting the finished article from the mould (99).
Multifunctional soft pet paw cleaning cup and a mold and method for preparing the same
A multifunctional soft pet paw cleaning cup includes a cup body made of a soft material. One end of the cup body is an open end. Soft spikes extending towards the center of the cup body are provided on the inner surface of the side wall and/or the inner surface of the bottom wall of the cup body, and the soft spike is made of a soft material. A mold for preparing the paw cleaning cup includes an inner mold core, an outer mold core, an upper mold and a lower mold. The outer mold core has an annular peripheral wall. A first soft spike hole is formed inside the peripheral wall. The inner mold core is provided at the inner side of the outer mold core. The lower mold is located below the outer mold core, and the inner mold core is fixed below the upper mold.
COATED FORMING TOOL
A seat system for a vehicle including a seat back assembly, a seat base assembly, and a headrest assembly. Each of the assemblies may include at least one formed part for providing comfort to an occupant of the seat system. A coated forming tool for producing the formed part of the seat system may be a mold assembly or a printing machine configured to form at least a portion of the formed part of the seat system. The coating of the coated forming tool comprises at least one of a nonstick or ecological material, and more preferably a polytetrafluroethylene (PTFE) material.
GASKET MEMBER MANUFACTURING METHOD AND GASKET MEMBER
Provided is a method for manufacturing a gasket member as described below. A plate-like base material is clamped between a first and a second split mold, and a gasket is fixed to a surface of the base material by injecting and filling a rubber-like elastic material into a cavity defined between the base material and the first split mold. An air vent is provided including an exhaust groove and an exhaust hole, the exhaust groove extending from the cavity toward an inner or outer peripheral side on a butting surface between the base material and the first split mold and partially opening in a circumferential direction of the cavity, the exhaust hole extending from the exhaust groove in a clamping direction of the first and second split molds. Air in the cavity is discharged through the air vent when the rubber-like elastic material is injected and filled into the cavity.
A TOOL FOR USE IN A THERMOFORMING PROCESS
A tool for a thermoforming process to form a moulded product from wet pulp fibre material includes two or more moulds each having a moulding surface, an actuator assembly, and a fluid extraction system. At least one of the moulds is displaceable by the actuator assembly between first and second positions and has fluid extraction paths extending through the mould to transport fluid away from the moulding surface. One of the moulds has a first layer that is substantially rigid to form a support member and is in communication with a heating subsystem of the fluid extraction system, and a second layer that is, in use of the tool, between the first layer and the wet pulp fibre material. The second layer is formed of a material that has interconnected internal voids forming part of the fluid extraction paths and has a lower heat transfer coefficient than the first layer.
Molding apparatus and method for molding using same
A molding apparatus for obtaining an annular molded article has a fixed die D1 and a movable die D2 capable of forming an annular cavity C. A first block B1 and a second block B2 are formed inside the cavity C in the fixed and movable dies D1 and D2. The blocks form a flow channel R communicating with the cavity C. Thus, gas generated in the cavity C and a molten metal can flow in the flow channel R. A discharge hole B2b is formed in the second block B2 to discharge the gas flowing in the flow channel R to the outside. A forming surface of the flow channel R, in the first and second blocks B1 and B2, is formed in an outer circumferential shape following an inner circumferential shape of the cavity C.
Direct molded acoustic insulators
A method to form automobile vehicle acoustic insulators includes as stages: forming a fiber mass by mixing a low melting point polymeric fiber and a high melting point polymeric fiber in predefined volumes in a mixing device; adding a water volume to the fiber mass to create a semi-solid mass; placing the semi-solid mass in a mold; internally heating the semi-solid mass in the mold using microwave energy; and expelling a first portion of the water volume through apertures created in the mold.
Direct molded acoustic insulators
A method to form automobile vehicle acoustic insulators includes as stages: forming a fiber mass by mixing a low melting point polymeric fiber and a high melting point polymeric fiber in predefined volumes in a mixing device; adding a water volume to the fiber mass to create a semi-solid mass; placing the semi-solid mass in a mold; internally heating the semi-solid mass in the mold using microwave energy; and expelling a first portion of the water volume through apertures created in the mold.
CURING MOLD FOR TIRES PROVIDED WITH A VENTING DEVICE AND CURING METHOD THEREFOR
Method for curing a tyre during which a green tyre is pressed against the lining of a curing mould provided with a venting device, the moulding surface of said lining forming protrusions that define cavities, the venting device comprising vents that pass through the lining, one cavity being divided into chambers by a protrusion in the form of a blade (26), each cavity closing on one or more vents, at least one of said chambers not closing on a vent, at least one duct (42) passing through the blade (26) so that the chamber(s) that does/do not close on a vent communicate(s) through the duct with a chamber that does close on a vent.
According to the invention, the cross-section of the duct (42) has an area of between 0.0001 mm.sup.2 and 0.25 mm.sup.2 and, more preferably, 0.01 mm.sup.2 and 0.1 mm.sup.2.
CURING MOLD FOR TIRES PROVIDED WITH A VENTING DEVICE AND CURING METHOD THEREFOR
Method for curing a tyre during which a green tyre is pressed against the lining of a curing mould provided with a venting device, the moulding surface of said lining forming protrusions that define cavities, the venting device comprising vents that pass through the lining, one cavity being divided into chambers by a protrusion in the form of a blade (26), each cavity closing on one or more vents, at least one of said chambers not closing on a vent, at least one duct (42) passing through the blade (26) so that the chamber(s) that does/do not close on a vent communicate(s) through the duct with a chamber that does close on a vent.
According to the invention, the cross-section of the duct (42) has an area of between 0.0001 mm.sup.2 and 0.25 mm.sup.2 and, more preferably, 0.01 mm.sup.2 and 0.1 mm.sup.2.