Patent classifications
B29C43/54
Methods and apparatuses for casting polymer products
In an example method of forming a waveguide film, a photocurable material is dispensed into a space between a first mold portion and a second mold portion opposite the first mold portion. Further, a relative separation between a surface of the first mold portion with respect to a surface of the second mold portion opposing the surface of the first mold portion is adjusted. The photocurable material in the space is irradiated with radiation suitable for photocuring the photocurable material to form a cured waveguide film. Concurrent to irradiating the photocurable material, the relative separation between the surface of the first mold portion and the surface of the second mold portion is varied and/or an intensity of the radiation irradiating the photocurable material is varied.
METHOD FOR FORMING A STRESS-FREE MULTILAYER PVC SHEET MATERIAL
A method for forming a multilayer plastic sheet material (1) for floor and/or wall panels, wherein a first polymer mass comprising a rigid PVC is melted under pressure and is passed through an extruder head at a specified discharge rate in the form of a plastic strand in sheet form that is provided with one or more layers so that a multilayer plastic strand is formed, which is passed to two or more rolls of a finishing stand, which processes the multilayer plastic strand into a sheet of defined thickness, which is then led away via a transport device to a sawing device to be cut to the desired length, wherein, after the plastic strand in sheet form leaves the extruder head, it is first passed between a top roll and a bottom roll of a roughing stand, wherein the speed of the rolls of the finishing stand and the rolls of the roughing stand is synchronized with the discharge rate of the plastic strand in sheet form from the extruder head, so that said plastic strand is processed without stress.
A DISTRIBUTOR DEVICE
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.
A DISTRIBUTOR DEVICE
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.
Devices and methods for consuming a plurality of liquids and mold apparatuses for forming such devices
Devices, methods, and mold apparatuses for forming devices facilitate consumption of a plurality of liquids by a user, such as a first liquid followed by a second liquid. In some cases, the first liquid is a relatively harsh liquid and the second liquid is a relatively mild liquid.
DEVICES AND METHODS FOR CONSUMING A PLURALITY OF LIQUIDS AND MOLD APPARATUSES FOR FORMING SUCH DEVICES
Devices, methods, and mold apparatuses for forming devices facilitate consumption of a plurality of liquids by a user, such as a first liquid followed by a second liquid. In some cases, the first liquid is a relatively harsh liquid and the second liquid is a relatively mild liquid.
METHOD FOR MANUFACTURING MOLDED ARTICLE
A method is described for manufacturing a molded product having a recessed/protruding part from a molded substrate (A) including reinforcing fibers and a matrix resin by press molding, the method comprising: a step (I) of placing the molded substrate (A) between molds including an upper mold and a lower mold and deforming the molded substrate (A) in an in-plane direction by heating and pressing the molds; and a step (II) of deforming the molded substrate (A) in an out-of-plane direction by depressurizing the molds subsequent to the step (I), wherein a deformation rate ratio T represented by the following formula (1) is within a range of 0.1 to 1:
T=X/Z (1)
where X and Z are as defined.
Compression mold
A mold is provided for forming caps for closing containers by compression molding doses of plastic material, where a bottom wall of the cap, or at least one portion of the bottom wall is very thin. The mold includes two half-molds axially movable towards each other which assume an end closed position without a dose. A tubular element is slidable around the second half-mold and partially defines the cavity. The tubular element contacts an axial abutment of the first half-mold at one side and an axial end stop of the second half-mold at the other side to prevent hard contact between the half-molds.
Compression mold
A mold is provided for forming caps for closing containers by compression molding doses of plastic material, where a bottom wall of the cap, or at least one portion of the bottom wall is very thin. The mold includes two half-molds axially movable towards each other which assume an end closed position without a dose. A tubular element is slidable around the second half-mold and partially defines the cavity. The tubular element contacts an axial abutment of the first half-mold at one side and an axial end stop of the second half-mold at the other side to prevent hard contact between the half-molds.
SEPARATION OF NEAR NET SHAPE MANUFACTURED PARTS FROM SUPPORT STRUCTURES
Systems and corresponding methods are provided for separation of support structures from near net shape manufactured parts. The system can include a support structure and a non-adhering material. The non-adhering material can be positioned on one or more predetermined exterior-facing surfaces of the support structure. The support system can be dimensioned for receipt within a void space of a porous green body defined by an overhang region of the porous green body. After receipt within a void space of a porous green body that undergoes a thermally-induced volumetric change, the support system can be configured to support the overhang region and the non-adhering material can be configured to inhibit adherence of the exterior-facing surfaces of the support structure to opposed surfaces of the void space.