A modular plastic pipe formation apparatus, wherein at least two components of the pipe formation apparatus are disposed with respect to at least one or more respective modules.

A device for producing plastic containers (10) by means of a molding, filling and sealing process is disclosed, at least consisting of a molding device (16) having individual molding tools (18), which can be moved repeatedly relative to one another from an open receiving position into a molding sealing position, and an extrusion unit (12), which can be used to insert at least one extruded plastic hose (14) into the open receiving position of the molding tools (18), which is characterized in that a traversing unit (20) can be used to move the extrusion unit (12) in conjunction with each extruded plastic hose (14) in opposite directions with respect to the molding device (16), which is stationary in every position of the molding tools (18).

Various methods and systems are provided for mixing and dispensing viscous materials for the creation of additive structures. As one example, during a mixing and dispensing operation of a multi-dimensional printing apparatus, one or more liquids may flow into a mixing chamber via one or more material inlets arranged in a wall of the mixing chamber below a high pressure bearing of a mixing rod positioned within the mixing chamber; and movement of a mixing rod positioned within the mixing chamber is adjusted based on an operating condition of the printing apparatus.

Plant for producing non-woven fabric, which comprises a cooling chamber provided with a first and with a second cooling section traversed by filaments of non-woven fabric. In addition, the plant comprises a feed duct connected to the cooling chamber in order to convey, within the latter, a cooling gas by means of the action of a fan, and provided with a first and with a second valve arranged for determining corresponding flows of the cooling gas to be introduced, respectively, in the first and in the second cooling section. A pressure sensor is employed in order to determine the pressure in the cooling chamber, by controlling the fan in a feedback manner.

Plant for producing non-woven fabric, which comprises a cooling chamber provided with a first and with a second cooling section traversed by filaments of non-woven fabric. In addition, the plant comprises a feed duct connected to the cooling chamber in order to convey, within the latter, a cooling gas by means of the action of a fan, and provided with a first and with a second valve arranged for determining corresponding flows of the cooling gas to be introduced, respectively, in the first and in the second cooling section. A pressure sensor is employed in order to determine the pressure in the cooling chamber, by controlling the fan in a feedback manner.

It is provided an apparatus for supporting the erection of a plastics profile during the start-up process of an extrusion line for the extrusion of plastics profiles. An initially bulky profile strand of the plastics profile, which is withdrawn through a calibration unit, can be enclosed by a profile guiding trim of a profile guiding device in front of a caterpillar take-off, wherein the profile guiding trim and/or the profile guiding device can be spatially fixed against a displacement in the extrusion direction in front of an inlet region into the caterpillar take-off and can be shifted and fixed with regard to the vertical and/or lateral position and/or can be rotated about the extrusion direction and be fixed.

The invention relates to a filter device for a plastic melt or another highly viscous fluid, comprising a housing with an inlet plate and a discharge plate. At least one spacing element and a screen wheel which can be rotated by a drive device are arranged between the inlet plate and the discharge plate. The inlet plate and the discharge plate are clamped against each other with the inclusion of the spacing element via at least three housing clamping elements. An engagement point of the drive device on the screen wheel is arranged outside of the pretensioning surface. When viewed in the rotational direction, an angle α larger than 110° and smaller than 160° is formed on the screen wheel between a first line that extends between the pretensioning surface centroid on which a resulting frictional force F.sub.R acts and the center of the screen wheel and a second line between the center and the engagement point on which an advancing force Fv acts.

A guiding and calibration device (100) of a blown plastic film is described, comprising a bearing structure (1, 2) which includes equidistant rotation fulcrums (3) of rotating structures (4) along an ideal circumference. Each rotating structure (4) comprises a rotating vertical upright (43) and at least one arm (44, 45) fixed to said rotating vertical upright (43). A vertical floating element (5) is rotatably fixed to the at least one arm (44, 45). The device (100) further comprises groups of rectilinear bars (12a, 12b) consisting of at least one pair of rectilinear bars (12a, 12b) parallel to each other and placed slidingly side by side along respective external edges.

A reciprocating blow molding unit includes an extruder screw foundation and an extrusion unit coupled to the extruder screw foundation. The extruder screw foundation includes a screw housing formed to include an interior cavity configured to receive polymeric material. The extrusion unit includes an extruder screw arranged to lie at least partially within the interior cavity and is configured to rotate about a longitudinal rotation axis to advance the polymeric material through the interior cavity.

There are provided a straining mechanism and a screw extruder including the straining mechanism, which can minimize material passing resistance in a breaker plate even, in a large-sized apparatus having high throughput, and which can improve the throughput by suppressing load power of the apparatus and heat generation of a material. For this purpose, a backup plate having an opening rate higher than an opening rate of a breaker plate and supporting the breaker plate is installed on a rear surface side of the breaker plate supporting a screen mesh.