The present invention provides a spider for a die head and die tooling that utilizes curved flow guides to direct the flow of plastic through the die head and die tooling. The spider leg splits the stream of plastic flowing through the spider into two independent streams at the upstream end. The downstream end comprises two curved flow guides that are configured to direct the two streams of plastic towards a longitudinal center plane of the spider leg. The turbulence caused by the curved flow guides creates obtuse or acute angled welding lines between the two streams of plastic. These obtuse and acute angled welding lines provide stronger bonds than the known spider legs that create butt welding or right angled welding lines.

Provided are extrusion dies having entrance, orientation, merging (205), and exit (211) sections, which dies may be used to produce fibers having, e.g., oriented reinforcement materials (e.g., PTFE) dispersed within. The dies provide fibers having enhanced mechanical and processing properties. The orientation section comprises orientation channels (203) wherein a ratio of a cross-sectional area having of the channel inlet to a cross-sectional area of the channel outlet is between 2 and 45.

A system and method are presented in which a flow of plastic is extruded to obtain nano-sized features by forming multiple laminated flow streams, flowing in parallel through the non-rotating extrusion system. Each of the parallel laminated flow streams are subjected to repeated steps in which the flows are compressed, divided, and overlapped to amplify the number of laminations. The parallel amplified laminated flows are rejoined to form a combined laminated output with nano-sized features. The die exit is formed to provide a tubular shape.

The present invention provides a spider for a die head and die tooling that utilizes curved flow guides to direct the flow of plastic through the die head and die tooling. The spider leg splits the stream of plastic flowing through the spider into two independent streams at the upstream end. The downstream end comprises two curved flow guides that are configured to direct the two streams of plastic towards a longitudinal center plane of the spider leg. The turbulence caused by the curved flow guides creates obtuse or acute angled welding lines between the two streams of plastic. These obtuse and acute angled welding lines provide stronger bonds than the known spider legs that create butt welding or right angled welding lines.

A mixer structure for a film die for a polymer melt includes multiple web elements. The web elements include a first web element and a second web element. The first web element and the second web element include at least an end, which is connected to a base. A film die includes a first tool element, a second tool element, and a flow channel for the polymer melt extending between the first tool element and the second tool element. The mixer structure is arranged in the flow channel. The mixer structure is held in at least one of the tool elements by a holding element.

An extrusion die includes a plurality of studs, a tuning assembly and a restrictor member. The tuning assembly comprises a wedge member, first and second adjustment members, and an adjustment control having a rotatable single point adjustment member. The wedge member is coupled to first ends of the studs and includes a first and second plurality of channels within. The first and second adjustment members have a plurality of protrusions, each of which is positioned within a respective one of the first and second plurality of channels. The restrictor member extends in the longitudinal direction and is coupled to second ends of the studs. Rotation of the single point adjustment causes each of the protrusions to move within each respective channel forcing the wedge member, the studs, and the restrictor member to move in a direction that is substantially perpendicular to the longitudinal direction.

The present invention relates to an overturning device (10) for overturning a molten material (200) in a melt channel (110) comprising a melt inlet (20) and a melt outlet (30), wherein between the melt inlet (20) and the melt outlet (30) at least a melt guidance means (40) is assembled for a rearrangement of molten material (200) from the centre (22) of the melt inlet (20) at the edge (34) of the melt outlet (30) and for a rearrangement of molten material (200) from the edge (24) of the melt inlet (20) in the centre (32) of the melt outlet (30).

Extrusion head 1 for manufacturing hose-like parisons from an extruded plastic material, which are made up from at least one first layer and a second layer, wherein the extrusion head 1 comprises the following: a first manifold 15 with a connection 2 for a first extruder, a second manifold 19 with a connection 8 for a second extruder 3, a first flow channel 17 with an annular first outlet opening 18 for producing a first layer, wherein the first flow channel 17 is fed by the first manifold 15, a second flow channel 21 with an annular second outlet opening 22 for producing a second layer, wherein the second flow channel 21 is fed by the second manifold 19, and a mixer 27 within the second flow channel 21 with a connection 54 for introducing a foaming agent.

A device for reducing the microbiological contaminants of container products made predominantly of plastics materials feeds a plastics granulate to an extruder assembly (19) that melts the granulate. The granulate is subsequently supplied to a form-fill-seal machine for producing a container product. A guide assembly (35) guides the plasticated plastic material from the extruder assembly (19) to the machine. At least one guide assembly (35) has at least one flow or channel guide (41) for the melted plastics material, so that microbiological contaminants are guided predominantly into the interior of the wall of the polymeric tube that interior is enclosed by regions of the plastic material that are less contaminated.

A device for producing and filling containers, in which at least one hose of plasticized plastic material emerging from an extrusion head (2), can be extruded into an opened mold, wherein a filling device (14) can be used to at least introduce the filling material into the relevant container by means of filling mandrels (12), which, at least during operation, extend through the extrusion head (2) along at least one row of passages (40), is characterized in that the extrusion head (2) has a cuboid shell (20, 22) and in that the overall height (H) of the extrusion head (2), viewed in parallel to the orientation of the relevant filling mandrel (12), is smaller than the length (L) of the extrusion head (2), viewed along the pertinent row of passages (40).