The present disclosure generally relates to extrusion die systems. In particular, the present disclosure relates to a specialty pin cam nut designed for the ease of assembly and disassembly of extrusion dies.

Extruded seals including a sealing portion with a honeycomb profile and method for making extruded seals with honeycomb profiles. An extrusion tool is provided with a first and second plate connected together. The first plate has a plurality of pins, which are vented to form a honeycomb profile. The second plate has a profiled opening receiving the plurality of pins and forming the overall shape of the part, including the outermost surfaces of the part. The pins serve as mandrels for extruded molten material to flow around. Varying the pin configuration and dimensions changes the honeycomb profile. The honeycomb structure is provided in the sealing portion of the extrusion. The honeycomb profile is formed by itself, co-extruded with a rigid or semi-rigid structural member, or applied to the rigid or semi-rigid structural member after the structural member is formed.

A multi-lane die is provided. The multi-lane slot die comprises an upper body member, a lower body member, an upper shim, a separator shim, and a lower shim. The upper shim is positioned between the upper body member and the separator shim. The upper shim, the upper body member, and the separator shim define a first at least one dispensing channel that extends to a first at least one dispense opening of the multi-lane die. The lower shim is positioned between the separator shim and the lower body member. The lower shim, the separator shim, and the lower body member define a second at least one dispensing channel that extends to a second at least one dispense opening of the multi-lane die.

A method for forming a composite tread with microchimneys, the method comprising the steps of providing a coextruded strip formed of a first compound and a second compound, wherein the first compound is a tread compound, and the second compound is electrically conductive, and then winding the coextruded strip onto a tire building drum to form a tread.

A method for forming a composite tread, the method comprising the steps of: forming a coextruded strip of a first compound and a second compound, wherein the first compound is a tread compound, and the second compound is formed from a second compound, wherein the tread is formed from winding the coextruded strip onto the tire building drum while varying the ratio of the first compound to the second compound

A method for forming a tire having a composite innerliner is described wherein the method includes the following steps: forming a coextruded strip of a first compound and a second compound, wherein the first compound may be an air impermeable compound, and the second compound is a cross linkable diene rubber compound, winding the coextruded strip onto a tire building drum while varying the ratio of the first compound to the second compound to form an inner liner layer of spirally wound coextruded strips.

One or more embodiments of the present invention provide a method for applying a dual compound coextruded continuous strip of a first compound and a second compound, the method comprising a first extruder for processing a first compound and a second extruder for processing a second compound, wherein the outlet from the first extruder is in fluid communication with a first channel of a housing, and the outlet from the second extruder is in fluid communication with a second channel of the housing, wherein a gear pump is positioned in each channel, wherein a nozzle is in fluid communication with an outlet of the first channel and an outlet of the second channel, and a coextruded continuous strip is produced. The ratio of the first compound to the second compound may be adjusted instantaneously.

One or more embodiments of the present invention provide an apparatus for applying a mixture of a first compound and a second compound, the apparatus comprising a first extruder for processing a first compound and a second extruder for processing a second compound, wherein the outlet from the first extruder is in fluid communication with a first channel of a housing, and the outlet from the second extruder is in fluid communication with a second channel of the housing, wherein a gear pump is positioned in each channel, wherein a nozzle is in fluid communication with an outlet of the first channel and an outlet of the second channel, and a coextruded continuous strip is produced. The ratio of the first compound to the second compound may be adjusted instantaneously.

The invention relates to an extruder system and a method for extruding cord reinforced extrudate, in particular for tire components, wherein the extruder system comprises an extruder head with flow channels for receiving an extrusion material from an extruder, a die for receiving said extrusion material from the flow channels and a cord guide for guiding cords side-by-side in a cord plane into the die, wherein the extruder head is provided with an insertion slot that extends in an insertion direction parallel to the cord plane through the extruder head, wherein the flow channels debouch into the insertion slot at a flow area, wherein the insertion slot is arranged for receiving the die and the cord guide in the insertion direction into a die position downstream of the flow area and a cord guide position upstream of the flow area, respectively, with respect to the insertion direction.

A group of hollow modules through which the material to be extruded flows, is provided that includes at least: a rectangular heating-shaping module (6), in which the material undergoes a temperature increase and takes on the desired shape; and a tubular cooling-solidification module (8), in which the material, which has taken on the desired shape, changes from liquid to solid with said shape. A heating-reaction module (2) is provided upstream of module (6). The heating-reaction module (2) includes an interchangeable hollow tube (3) with an external heating system (4). The heating-shaping module (6) includes detachable parts (7) and includes another external heating system (4) based on the auto-acceleration of the curing reaction and of the heat supply from said system (4). The tubular portion between module (2) and module (6) includes a shaping coupling (5) equipped with a through-hole. The extrusion module includes a circuit through which the polymer flows into at least two push compartments (20).