Abstract: A support arrangement retains several calibration dies of a calibrating device disposed one after the other in the extrusion direction on a calibrating table of an extrusion plant. The support arrangement includes a support plate and a mounting plate separate from it. A joint arrangement is disposed between the support plate and the mounting plate and enables the support plate to be spatially displaced relative to the mounting plate.

Abstract: The invention relates to a shaping device (3) for shaping and cooling articles produced from a plastic melt, whereby said device can be arranged downstream of an extruder. The shaping device (3) comprises, arranged in an entry area (19), an inlet opening (20) for the plastic melt, at least one channel (21) extending in the direction of an outlet area (22) and having channel walls (23, 24) delimiting the same, and at least one cooling device (27) associated with the channel walls (23, 24). An additional cooling device (28) for the plastic melt to be passed through is provided inside the channel (21) in the area directly adjacent to the inlet area (19).

Abstract: The invention describes a support arrangement for retaining several calibration dies (10 to 12) of a calibrating device (8) disposed on after the other in the extrusion direction (6) on a calibrating table (21) of an extrusion plant (1). The support arrangement comprises a support plate (55) and a mounting plate (56) separate from it. A joint arrangement (60) is disposed between the support plate (55) and the mounting plate (56) by means of which the support plate (55) can be spatially displaced relative to the mounting plate (56).

Abstract: The invention relates to a moulding system (3), in particular a calibration die (17), for an extrusion plant, with preferably parallel inlet and outlet faces (28, 29) spaced at a distance apart and with side faces (30, 31, 32, 33) extending between them. A longitudinal axis for the object to be fed through a calibration orifice (24) is disposed substantially perpendicular to the inlet and outlet face (28, 29). Provided between a shaping surface (25, 26) and a side face (30, 31, 32, 33) is a gap (37, 38) extending at least across a part of the distance between the inlet and outlet face (28, 29). The gap (37, 38) is disposed between several immediately adjacent parts of several shaping surfaces (26) of the calibration orifice (24) and at least one of the side faces (30, 31, 32, 33). At least the parts of the shaping surfaces (26) co-operating with the gap (37, 38) are displaceable relative to the other shaping surfaces (25).

Abstract: The invention relates to a shaping apparatus for an extrusion system with at least one calibration die having a plurality of calibration units (31) disposed one after the other, having a calibration orifice (38) with a plurality of shaping surfaces (39 to 42) which come into contact with an article (6) fed therethrough, and end faces (43) spaced apart from one another with side faces (45 to 48) extending between them. At least one cavity is provided between at least two immediately adjacent calibration units (31). The calibration die is provided with means for dispersing heat. The calibration orifice (38) is provided with at least one continuous circulation passage (67) around a predominant part of and immediately adjacent to its circumference, having a separate inlet and outlet line (68, 69).

Abstract: The forming device (3) for an extrusion plant (1) having at least one calibrating device (9) comprising at least one calibration tool (24 to 27) having a plurality of calibration dies (29 to 37), arranged one after the other in an extrusion direction (7), has at least one calibration orifice (38) with several forming surfaces QQ to 42) The calibration dies (29 to 37) have end faces (43, 44) spaced at a distance apart from one another in the extrusion direction (7). At least one cavity (51) is formed between at least two immediately adjacent calibration dies (29 to 37) extending from the forming surface through to a passage applying a vacuum to the cavity, and the cavity (Si) is open across a predominant part of the, periphery of the calibration orifice (38) towards the calibration orifice (38) bounded by the forming surfaces.

Abstract: The invention relates to a moulding system (3), in particular a calibration die (17), for an extrusion plant, with preferably parallel inlet and outlet faces (28, 29) spaced at a distance apart and with side faces (30, 31, 32, 33) extending between them. A longitudinal axis for the object to be fed through a calibration orifice (24) is disposed substantially perpendicular to the inlet and outlet face (28, 29). Provided between a shaping surface (25, 26) and a side face (30, 31, 32, 33) is a gap (37, 38) extending at least across a part of the distance between the inlet and outlet face (28, 29). The gap (37, 38) is disposed between several immediately adjacent parts of several shaping surfaces (26) of the calibration orifice (24) and at least one of the side faces (30, 31, 32, 33). At least the parts of the shaping surfaces (26) co-operating with the gap (37, 38) are displaceable relative to the other shaping surfaces (25).

Abstract: The invention relates to a retaining device (26), in particular on an extruder (2), for several die plates (27) which can be arranged immediately one after the other in the extrusion direction (6) to form an extrusion die (28) with an inlet region (29) and an outlet region (30). At least two tension elements (37) are provided spaced at a distance apart from one another perpendicular to the extrusion direction (6), which can co-operate with the die plates (27) respectively in the region of opposing first side ends (34) which they span. At least one holding element (40) projects, in an end region (39) of the tension element (37) which may be directed towards the outlet region (30), into the cross-sectional surface bounded by the side ends (34) of the die plates (27) disposed one after the other and engages round these side ends (34).

Abstract: The invention relates to a shaping apparatus for an extrusion system with at least one calibration die having a plurality of calibration units (31) disposed one after the other, having a calibration orifice (38) with a plurality of shaping surfaces (39 to 42) which come into contact with an article (6) fed therethrough, and end faces (43) spaced apart from one another with side faces (45 to 48) extending between them. At least one cavity is provided between at least two immediately adjacent calibration units (31). The calibration die is provided with means for dispersing heat. The calibration orifice (38) is provided with at least one continuous circulation passage (67) around a predominant part of and immediately adjacent to its circumference, having a separate inlet and outlet line (68, 69).

Abstract: The invention describes a forming device (3) for an extrusion plant (1) having at least one calibrating device (9) comprising at least one calibration tool (24 to 27) having a plurality of calibration dies (29 to 37), arranged one after the other in an extrusion direction (7), having at least one calibration orifice (38) with several forming surfaces. The calibration dies (29 to 37) have end faces (43, 44) spaced at a distance apart from one another in the extrusion direction (7). At least one cavity (51) is formed between at least two immediately adjacent calibration dies (29 to 37) extending from the forming surfaces through to a passage and the cavity (51) is open across a predominant part of the periphery of the calibration orifice (38) towards the calibration orifice (38) bounded by the forming surfaces.