摘要:
An extrusion die includes a first die body having a first lip, and a second die body having a second lip. A lip adjustment assembly is mounted to the first die body and configured to adjust the position of the first lip relative to the second lip to thereby adjust a thickness of the extrudate that exits the gap. The lip adjustment has translating unit that includes translator, a mounting member coupled to the translator, and a rod coupled to the mounting member so that the translator is fixed with respect to the rod. The mounting member is configured to be accessible from the exposed end to decouple the translator from the rod so as to remove the translator from the lip adjustment assembly.
摘要:
The invention relates to an apparatus (20) for automatically analyzing extruded films, in particular stretched films (7), wherein a neck-in portion is formed at each of both edges of the film at a specific distance from an extrusion lip of a film extruder along the longitudinal transport direction of the film, and a respective method. The apparatus comprises two edge detectors (31a, 31b) being arranged along a first line substantially transversal to the longitudinal direction and being spaced from each other by a specific distance, wherein each one edge detector (31a, 31b) is configured to detect, preferably to continuously detect the lateral position of one respective edge of the neck-in portion of the film, a calculation means for determining the spatial relation between at least one lateral position at the extrusion lip and a respective lateral position at the neck-in portion on the basis of the two lateral positions of the edges of the neck-in portion of the film.
摘要:
The invention discloses a slot die (10) for an extrusion device for the extrusion of preforms (1) in web or strip form from thermoplastic material which comprises a die gap (11) extending transversely to a direction of extrusion and intended for delivering a preform (1). The slot die (10) is characterized in that it comprises at least one adjusting element (12), which is arranged peripherally in the die gap (11), limits a widthwise extent of the die gap (11) and is mounted continuously displaceably and/or pivotably with respect to the die gap (11). The widthwise extent of the die gap (11) is dynamically and continuously variable by displacing and/or pivoting the adjusting element (12), so that a widthwise extent of a preform (1) extruded from the slot die (10) is continuously and infinitely variable over the length of extrusion thereof.
摘要:
The invention relates to a die for manufacturing a film by extrusion, comprising two blocks (100, 200) that define a flow duct (110) between one another, at least one (200) of the two blocks comprising a body (210) that has a deformable portion (220) for modifying the outlet opening of the die, characterized in that means (300) for subjecting the deformable portion to a force comprise at least one bearing part (310) that extends in a general direction (V) perpendicular to the direction (L) of flow at the die outlet and comprises a first end (312) bearing against the deformable portion (220), adjusting means (350, 380) in contact with the bearing part (310) modifying the position of this part.
摘要:
In a die lip driving structure according to an embodiment, a rotational force of a lever (34) is converted into a force in an axial direction of an operating rod, and the force in the axial direction becomes a pressing load or a tensile load exerted on a flexible lip portion (22). The lever (34) directly applies a force to the operating rod (36) at a point of action P of the lever (34).
摘要:
Extrusion die for delivering a variable extruded profile, at least comprising: • a. an extrusion die body (1), • b. a die orifice (2) in the extrusion die body (1), containing a main orifice (2a) for shaping an extruded profile, and a bulge (2b), connected to the main orifice (2a), for shaping a lip connected to the extruded profile, • c. a slide (3) in front of the die orifice (2), wherein the slide (3) comprises a first part-slide (3a) and a second part-slide (3b), which are arranged one behind the other and are connected to one another by way of a sliding guide (5), and wherein the first part-slide (3a) and the second part-slide (3b) are coupled to one another in terms of movement.
摘要:
An extrusion die is provided with an external deckle assembly, an internal deckle assembly, or both. One embodiment provides an extrusion die having a wedge-actuated external deckle assembly. A seal member of the external deckle assembly moves to a sealed position in response to movement of the wedge in a first direction. Another embodiment provides an extrusion die with an internal deckle assembly having a deckle rod support system. The internal deckle assembly includes a deckle rod and a transversely elongated support engaged with the deckle rod to restrain the deckle rod against bending.
摘要:
A slurry distributor can include a feed conduit and a distribution conduit in fluid communication therewith. The feed conduit can include a first and second feed inlets disposed in spaced relationship to each other. The distribution conduit can extend generally along a longitudinal axis and include an entry portion and a distribution outlet in fluid communication therewith. The entry portion is in fluid communication with the first and second feed inlets of the feed conduit. The distribution outlet extends a predetermined distance along a transverse axis. The first and second feed inlets each has an opening with a cross-sectional area. The entry portion of the distribution conduit has an opening with a cross-sectional area which is greater than the sum of the cross-sectional areas of the openings of the first and second feed inlets. The slurry distributor can be placed in fluid communication with a gypsum slurry mixer.