The device for demolding negatives in thermoplastic injection molds includes an ejector (3), which comprises an ejector profile (5) for the fastening thereof to an ejector plate (2), and a figure insert (6) with a profile that is complementary to the piece (4) to be molded, wherein said ejector (3) further comprises a flexible element (7) arranged between the ejector profile (5) and the figure insert, which pushes said figure insert (6) in order to demold the negative by means of angular displacement and stretches said figure insert (6) so as to return the ejector (3) to the injection position thereof.

It makes it so molding sliders are no longer necessary, hence, these spaces, the costly sliders, and the painstaking machining processes for the installation thereof in the molds are no longer required.

A mold for molding aircraft components is provided. The mold includes a mold first part, a mold second part, and a mold insert, the mold first part and mold insert combining to form a cavity defining the shape of an aircraft component. The cavity may be filled with reinforcing fiber and then infused with matrix material to form a fiber-reinforced composite part. The mold may include one or more sensors to monitor data related to a molding process such as pressure, temperature, and material flow.

A mold for molding aircraft components is provided. The mold includes a mold first part, a mold second part, and a mold insert, the mold first part and mold insert combining to form a cavity defining the shape of an aircraft component. The cavity may be filled with reinforcing fiber and then infused with matrix material to form a fiber-reinforced composite part. The mold may include one or more sensors to monitor data related to a molding process such as pressure, temperature, and material flow.

An injection molding method and a deformable molding unit are provided. The method includes the following steps. First, a mold positioning step is performed to define a mold cavity. The step includes: providing a deformable molding unit on a first axis, the deformable molding unit having a deformable cavity and including a bottom portion and a first elastic portion being elastically deformable with respect to the bottom portion; and applying a first compression force to the first elastic portion by a first drive module along a second axis, reducing the size of the deformable cavity to a reduced dimension. Next, plastic is injected into the mold cavity including the deformable cavity with the reduced dimension to form a workpiece. Then, the first compression force is released, allowing the deformable cavity to return to its original dimension. Afterward, the deformable molding unit is retracted along the first axis.

A mold for molding aircraft components is provided. The mold includes a mold first part, a mold second part, and a mold insert, the mold first part and mold insert combining to form a cavity defining the shape of an aircraft component. The cavity may be filled with reinforcing fiber and then infused with matrix material to form a fiber-reinforced composite part. The mold may include one or more sensors to monitor data related to a molding process such as pressure, temperature, and material flow.