Abstract:
An apparatus for producing elastomeric compounds comprises: a device for reducing an elastomeric compound (4) into small pieces (3) of controlled sizes; a device (5) for continuously feeding the elastomeric compound (4) to an inlet (8) of the device (2) for reducing into small pieces (3); a mixing extruder (6) having an inlet opening (18a) operatively connected with an outlet (16) of the device (2) for reducing into small pieces (3); a device for detecting at least one magnitude value (L, C) indicative of the filling degree of the mixing extruder (6). A control unit (26) operatively connected to the device (2) for reducing into small pieces (3) and the detecting device (25), adjusts the operating speed of the device (2) for reducing into small pieces (3) in such a manner as to maintain said indicative magnitude in the neighbourhood of a predetermined value.
Abstract:
L'invention concerne une bande ou lien constituée par une nappe de torons métalliques (2) multibrins gainée par extrusion d'une couche mince constante plastique permettant de rendre solidaire mécaniquement les torons (2) en les réunissant par des intercalaires (3 ) d ' épaisseur faible reliant les dômes (1) recouvrant chaque torons (2).
Abstract:
A compounding system (12, 112, 212) for forming a customized consumable material (60, 160, 260), comprising a plurality of drive mechanisms (48a-48c, 148a-148c, 248a-248c) configured to feed stock materials at independent rates, and an extrusion component (50, 150, 250) configured to receive the fed stock materials, and further configured to at least partially melt and blend the received stock materials to provide the consumable material (60, 160, 260) in an extrudable state. Upon solidifying, the consumable material (60, 160, 260) comprises customized characteristics based on characteristics of the stock materials.
Abstract:
A compounding system (12, 112, 212) for forming a customized consumable material (60, 160, 260), comprising a plurality of drive mechanisms (48a-48c, 148a-148c, 248a-248c) configured to feed stock materials at independent rates, and an extrusion component (50, 150, 250) configured to receive the fed stock materials, and further configured to at least partially melt and blend the received stock materials to provide the consumable material (60, 160, 260) in an extrudable state. Upon solidifying, the consumable material (60, 160, 260) comprises customized characteristics based on characteristics of the stock materials.
Abstract:
A liquefier assembly (22, 322) comprising a liquefier tube (32, 123, 232, 332), where the liquefier tube (32, 123, 232, 332) comprises a sidewall (38, 138, 238, 338) having an inlet opening (40, 140, 240, 340) configured to receive a filament strand (24), an outlet opening (52), and a port (56, 156, 256) disposed through the sidewall (38, 138, 238, 338) at a location between the inlet opening (40, 140, 240, 340) and the outlet opening (52), the port (56, 156, 256) being configured to provide access for a filament drive mechanism (30) to engage with the received filament strand (24). The liquefier assembly (22, 322) further comprises a heat transfer component (34, 334) configured to generate a thermal gradient along a longitudinal length of the sidewall (38, 138, 238, 338) between the port (56, 156, 256) and the outlet opening (52).
Abstract:
The invention relates to a device for producing a tyre reinforcing structure comprising wires which are disposed essentially parallel to one another, said device being intended to be used together with an essentially-toroidal element (1). According to the invention, the reinforcing structure is constructed gradually on the aforementioned toroidal element (1) by depositing hoops of wire side-by-side on the surface of the toroidal element along the desired trajectory for said wire. The inventive device consists of an assembler (5) comprising: an inlet which is used to receive the wires (2); a gumming chamber (50); a positive-displacement pump which is used to deliver a rubber composition inside the gumming chamber; and a strip delivery outlet (20), said strip comprising the wires which are connected by said rubber composition. The invention also includes a strip depositing device (4) comprising a reference frame in relation to which the toroidal element can be installed at a known position.
Abstract:
Die Erfindung betrifft ein Verfahren zur kontinuierlichen Herstellung von Kautschukmischungen mittels eines Doppelschneckenextruders, wobei dem Doppelschneckenextruder plastifizierter Kautschuk mit vorgebbarer Temperatur und vorgebbarem Volumenstrom zugeführt wird. Die Vorrichtung ist gekennzeichnet durch die Kombination folgender Anlageteile: einem Kurzschneckenextruder (5), der mit einem Einlass (7) für das zu extrudierende Material versehen ist, einer Zahnradpumpe (3), die einlassseitig mit dem Kurzschneckenextruder (5) verbuden ist und deren Auslass direkt an die Einlassseite des Doppelschneckenextruders (2) angeschlossen ist, sowie getrennt regelbare Antriebe (4; 6) für die Zahnrapumpe (3) und den Kurzschneckenextruder (5).
Abstract:
The invention concerns a method for recycling magnetic tapes (7) by extrusion which consists in directly introducing said tapes (7) by one of their two ends at the extruder screw(s) (2) inside the sheath (1) containing them, without any prior crushing step.
Abstract:
The invention relates an extrusion device (100) for extruding a semi¬ finished product made of elastomeric material, comprising an extrusion body (10) extending along a feeding direction (A) and a pump (20) arranged downstream of the extrusion body (10) along said feeding direction (A). The extrusion body (10) comprises a hopper (30) for loading an elastomeric material and an extrusion screw (50) extending along said feeding direction (A) and having an inlet portion (50a) arranged close to the hopper (30) and an exit portion (50b) arranged close to the pump (20). The extrusion body (10) also comprises a motorised roller (40) arranged at the inlet portion (50a) of the extrusion screw (50) and configured to receive the elastomeric material from the hopper (30) and feed it to the extrusion screw (30). The extrusion screw (50) has a length and a diameter such that the ratio between length and diameter is comprised between 4 mm and 8 mm. The invention also relates to an extrusion process carried out through the aforementioned extrusion device (100).
Abstract:
A system, method, and thread structure composition (520) are disclosed. The thread structure composition (520) includes a first thread (510) and a second thread (512). The second thread (512) includes a heat moldable material that is moldable above a predetermined temperature. The first thread (510) remains in a solid form at temperatures substantially above the predetermined temperature. The second thread (512) is twisted around the first thread (510).