An extrusion device for manufacturing a hollow structure by coaxial extrusion of a plurality of media. The extrusion device has a plurality of mountings, each for a nozzle for extruding one of the media. The mountings extend in an axial direction along a central axis and are arranged coaxially, for coaxial arrangement of the nozzles in one another. At least two of the mountings follow one another in a radial direction and are mounted against one another in the radial direction by use of a bearing such that the at least two mountings can be displaced relative to one another in the axial direction in order to adjust the relative axial positions of the respective nozzles.

A head is disclosed for use with a manufacturing system. The head may have a housing configured to discharge a tubular structure reinforced with at least one continuous fiber and having a three-dimensional trajectory, and a cure enhancer operatively connected to the housing and configured to cure a liquid matrix in the tubular structure during discharge. The head may also have a nozzle configured to discharge a fill material into the tubular structure, and a wand extending from the housing to the nozzle.

A head is disclosed for use with a manufacturing system. The head may have a housing configured to discharge a tubular structure reinforced with at least one continuous fiber and having a three-dimensional trajectory, and a cure enhancer operatively connected to the housing and configured to cure a liquid matrix in the tubular structure during discharge. The head may also have a nozzle configured to discharge a fill material into the tubular structure, and a wand extending from the housing to the nozzle.

A system is disclosed for use in manufacturing a composite structure. The system may include a support configured to move in a plurality of directions during manufacturing of the composite structure, and a head coupled to the support. The head may have a housing that is configured to receive a liquid matrix and at least one continuous fiber and configured to discharge a tubular structure. The head may also have a nozzle operatively connected to the housing and configured to deposit a material layer onto a surface of the tubular structure as the tubular structure is discharging from the housing, and a squeegee associated with the nozzle and configured to wipe over the material layer. The head may further have a first cure enhancer operatively connected to the housing and configured to cure the liquid matrix in the tubular structure during discharge, and a second cure enhancer configured to cure the material layer deposited by the nozzle.

A head is disclosed for use with a continuous manufacturing system. The head may have a housing, a fiber guide rotatably disposed at least partially inside the housing, and a diverter disposed at an end of the housing. The diverter may be configured to divert radially outward a matrix-coated fiber passing through the fiber guide.

A method of adjusting an amount of force applied to a plurality of fasteners connecting a lip body to a die body portion on an extrusion die using a fastener tension adjustment assembly is disclosed. The fastener tension adjustment assembly is adjusted to cause at least part of thee fastener tension adjustment assembly to move away from the lip body. In response to movement of the fastener tension adjustment assembly away from the lip body, amount of force applied by the fastener tension adjustment assembly on each of the plurality of fasteners is simultaneously increased.

An extrusion die with fastener tension adjustment assembly can be formed of a die body that includes a first die body portion and a second die body portion. The extrusion die can have a lip body connected to one of the die body portions using the plurality of fasteners. In one configuration, the fastener tension adjustment assembly has an elongated body operatively connected to each of said plurality of fasteners. The fastener tension adjustment assembly is movable towards and away from the lip body, thereby simultaneously adjusting an amount of force applied to each of said plurality of fasteners. Because the fastener tension adjustment assembly can simultaneously adjust the amount of force on each of the plurality of fasteners, it can eliminate time consuming fastener-by-fastener adjustments on the extrusion die.

An apparatus for producing flat-web products includes a slot die of which the gap and/or restrictor bar can be set via screws. At least one screwing device is provided for setting the screws, the screwing device including a cross member on which the screwing device can be moved to an fro. The cross member is fixably connected to the slot die on one side of the slot die. The apparatus has at least one bearing arrangement on the other side of the slot die. The at least one bearing arrangement permits a relative movement between the slot die and the cross member.

A bearing is provided which supports an inner pipe flange part. An end face flange is formed so as to be inclined on a center of an inner flange part as a supporting point and a load is applied by a pushing and pulling device through the bearing in a direction intersecting at right angles to an axial direction of a roll to incline the end face flanges at both sides by prescribed angles. Thus, a rotation moment is applied to an end face of the outer cell to adjust a crown of the outer cell.

An extrusion facility comprises a core site (5) designed to receive a tool module (6) in order to connect an extruder (4) to it with a view to producing a profiled element (2), the core site (5) being located at a first level (11), referred to as working level (11), which is provided with a floor (12) on which an operator can move about to access the core site (5), and an underground-transfer device (30) which makes it possible to convey the tool module (6) to the core site (5) and, respectively, to remove the tool module (6) from the core site (5), from and to, respectively, a remote preparation site (40) by using a lift cage (31, 41) to move the tool module (6) through the floor (12) from, or respectively to, a second level (32), referred to as basement (32), which is located below the floor (12).