B29C33/442

Demolding of large composite parts for aircraft

Systems and methods are provided for demolding a composite part from a mandrel. The method includes mechanically coupling a first arm of an extraction tool to a first arcuate portion of a composite part that has been hardened onto a mandrel, mechanically coupling a second arm of an extraction tool to a second arcuate portion of the composite part, and separating the composite part from the mandrel by iteratively performing the following operations until the composite part no longer contacts the mandrel: elastically straining the first arcuate portion of the composite part via the first arm, and elastically straining the second arcuate portion of the composite part via the second arm.

DEVICE FOR EJECTING A MOULD, COMPRISING A CHAIN WITH SLIDING LINKS AND AN ADJUSTMENT SHIM
20230321876 · 2023-10-12 ·

An ejection device having a pushing device that can be moved in translation along a first axis, an ejection element is translatable along a second axis different from the first axis, and a transfer device connecting the pushing device and the ejection element. The transfer device includes a transmission chain having at least two transmission links which are translatable in a sliding direction. The ejection device further includes an adjustment wedge mounted on the pushing device, the adjustment wedge having an adjustment surface forming an adjustment angle, with the transmission chain being mounted on the adjustment surface.

Method for manufacturing transdermal absorption sheet
11160965 · 2021-11-02 · ·

Provided is a method for manufacturing a transdermal absorption sheet which makes it possible to manufacture a transdermal absorption sheet with a stable shape. The method for manufacturing a transdermal absorption sheet includes a step of forming a drug layer (110) on needle-like recess portions (42) of a mold (50) having the needle-like recess portions (42), a step of supplying a polymer layer forming solution (112) to the inside of a step portion (52) of the mold (50), a step of drying the polymer layer forming solution (112) so as to form a polymer layer (114) and a transdermal absorption sheet (120), and a step of peeling off the transdermal absorption sheet (120) from the mold (50). In the step of peeling off, pressing force is applied to a part of the step portion (52) in a second direction (B) opposite to a first direction (A) in which the transdermal absorption sheet (120) is released from the mold (50), and the transdermal absorption sheet (120) is aspirated with a vacuum suction pad (160) from a side opposite to the mold (50) so that the transdermal absorption sheet (120) is peeled off from the mold (50) in the first direction (A).

Laminate Tooling Unit and Process for the Manufacture of Laminate Tooling Unit with Functional Features
20220281142 · 2022-09-08 ·

The disclosure includes a laminate tool and a process for producing laminate tooling with functional features between adjacent or non-adjacent laminate segments to provide mechanical leverage to demold a part, space for moving tool segments that allow features to be molded against the line of draw (eliminate die-locked conditions), and passage way for gas to travel.

Device and method for frying food item
11432681 · 2022-09-06 ·

Device for dispensing a food item into a hot fluid comprises a bowl having a permanent base and a movable plate positioned about the permanent base. A bottom of the bowl defines an opening for receiving a shaft extending therethrough. The shaft is coupled to the movable plate. A shank is selectively engaged with the bowl, the shank having a handle at a proximal end thereof. A lever is pivotably attached to the shank. The pivotal attachment is spaced apart from the bowl. The lever is detachably coupled to the shaft to impart translation of the movable plate. During operation, the lever is manipulated from a first position to a second position to push the shaft to move the movable plate to thereby eject the food item out of the bowl and into a hot fluid.

INJECTION MOLD FOR TIMEPIECE COMPONENT
20220111565 · 2022-04-14 · ·

The injection mold has a mold core including a first part and a second part. The parts are mobile relative to one another between a first injection position in which they are moved together to form an injection cavity permitting the injection of a material to form an injected part (50; 50′), and a second demolding position in which they are moved away from one another to permit the demolding of the injected part (50; 50′). The injection mold has at least one ejector designed to contribute to the demolding, and at least one movable intermediate plate (10; 10′, 20′), separate from the two parts of the mold core. The intermediate pate is arranged between the two parts of the mold core, and has at least one cutout (12; 12′, 22′) forming at least one part of the injection cavity of the injection mold.

HYDRAULIC ADVANCEMENT/POSTPONEMENT ASSEMBLY
20210331352 · 2021-10-28 · ·

A hydraulic advancement/postponement assembly is operably coupled to a first ejector plate and to a second ejector plate. The hydraulic advancement/postponement assembly includes a first hydraulic cylinder having a first housing defining a first volume and a first piston, the first housing connected to the first ejector plate and the first piston connected to a fixed element. The hydraulic advancement/postponement assembly includes a second hydraulic cylinder disposed in fluid communication with the first hydraulic cylinder, the second hydraulic cylinder having a second housing defining a second volume and a second piston, the second housing connected to the first ejector plate and a second piston connected to the second ejector plate.

Method and apparatus for releasing molded article from mold

In the method and the apparatus for releasing a molded article from a mold according to the embodiments, the lateral of the molded article in the mold is pressed, so that it is possible to minimize the damage of the mold and the molded article at the time of the release, while the amount of a mold release agent used is minimized.

METHOD AND SYSTEM FOR ESTIMATING NORMAL VECTOR TO DIE AND NORMAL VECTOR TO ATTACHMENT
20210323208 · 2021-10-21 ·

A method of estimating a normal vector to an attachment mounted to an approach frame of an apparatus for taking out a molded product and a normal vector to a die mounted to a molding machine is provided. A normal vector to a take-out head is estimated through computation using a coordinate/depth determination section and a normal vector computation section on the basis of depth data or coordinate data on three mounting members. Three or more extending portions are specified from the image, the extending portions being each a part of a fixed die or a movable die or a part of a surrounding component and extending in a direction that coincides with the open direction for the dies. A normal vector to the die is estimated through computation on the basis of the depth data or coordinate data on the specified extending portions.

Mould tool having moving parts
11123907 · 2021-09-21 · ·

A mould tool (100) has a first part (102) defining a first area (114) of a mould profile, an actuated part (130) defining a second, adjacent area (132) of the mould profile, which actuated part is configured to move from a moulding position to an actuated position at the end of each mould cycle to facilitate removal of a moulded component. The actuated part (130) comprises a temperature control apparatus (108) configured to control the temperature of the actuated part to influence a clearance (C) between the first part and the actuated part by thermal expansion and/or contraction of the actuated part.