摘要:
The invention relates to a kneader for carrying out mechanical, chemical and/or thermal processes, comprising at least two shafts (5, 6), which rotate in a manner that is parallel to the axis and which are situated inside a housing having an inner wall (31). Kneading bars (24), which follow one another in a direction of rotation and in an axial direction of the shafts (5, 6) and which extend along the inner wall (31) of the housing and in the direction of the shafts (5, 6) or diagonal thereto, are located on said shafts (5, 6) while being mounted on a supporting element (22.1, 22.2, 23.1, 23.2). The paths of the kneading bars (24) on both shafts (5, 6) overlap at least partially and, during rotation, the kneading bars (24) on one shaft engage between the supporting elements (22.1, 22.2, 23.1, 23.2) on the other shaft. To this end, supporting elements (22.1, 22.2 or 23.1, 23.2) of different thicknesses are arranged in succession and in a direction of rotation (X) on the shaft (5, 6) while being situated on and/or in a radial plane (E).
摘要:
The present invention provides a rubber kneading machine that obviates the need for an operator to touch rubber on a rotating roll surface to perform a rubber kneading operation, permits an unattended operation, is intrinsically safe, permits improved productivity of a rubber kneading process, secure stable quality of kneaded rubber, and allows a closed rubber supplying mechanism to be easily opened and exposed for easy cleaning. The rubber kneading machine is equipped with two horizontal rolls 1 and 2 closely disposed vertically, decelerators 16a and 16b and variable speed motors 15a and 15b for rotating the rolls at different speeds, and a screw extruder 3 for supplying a rubber lump fed into a hopper 4 at a proximal end to the rolls. A rubber circulating mechanism is constructed mainly of a scraper 33 and a belt conveyor 34, or a belt conveyor 35 above the upper roll 1 to feed a rubber sheet, which has left the rolls 1 and 2, to the hopper 4. Furthermore, a mechanism for releasing the screw extruder 3 is provided to make it possible to open and expose closed portions to facilitate cleaning.
摘要:
Bei der Vorrichtung zum Plastifizieren von mit Langfasern verstärktem thermoplatischem Kunststoffgranulat, sind in einem Trog (1) zwei randgängige Knetorgane (2,3) angeordnet. Im Boden des Trogs (1) ist eine Rinne (7) zur Aufnahme eines in der Rinne (7) verschiebbaren Räumkolbens (4) vorgesehen und an einer Stirnseite (9) der Rinne (7) ein Ausstoßzylinder (5) befestigt, in den sich der Räumkolben (4) einschieben läßt.
摘要:
To lessen dimensional restrictions on mounting a torque detection device on a molding machine. Provided is a molding machine system provided with: a molding machine having a cylinder, a first screw and a second screw built into the cylinder, and a motor for rotating the first screw and second screw; a torque detection device for detecting torque in the motor as an example of a feature relating to the operating state of the molding machine; a torque detection device for detecting torque of the first screw, the torque detection device being mounted on the axis of rotation of the first screw; and a torque derivation device for deriving torque of the second screw based on torque of the motor detected by the torque detection device and torque of the first screw detected by the torque detection device.
摘要:
Verfahren zur Herstellung einer Gummimischung mit folgenden Schritten: a) Hinzugabe von Rohmaterialien für die Gummimischung in den oberen Mischer (1) des Tandemmischers, wobei die Rohmaterialien zumindestens Silica-Material umfassen, b) Durchführung einer ersten Mischstufe mit den Rohmaterialien im oberen Mischer des Tandemmischers, wobei beim Mischvorgang eine Zielmischtemperatur erreicht wird und für den Mischvorgang eine Mindestmischzeit vorgegeben wird, wobei mit dem Mischvorgang eine Silanisierung der Gummimischung initiiert wird, c) Überführung der Gummimischung von dem oberen Mischer in eine Zwischenkammer (2) mit einer Heizvorrichtung und wärmeisolierten Kammerwänden, wobei die Zwischenkammer unterhalb vom oberen Mischer angeordnet ist, d) Zwischenlagern der Gummimischung in der Zwischenkammer über eine vorgegebene Lagerungszeit, wobei die Silanisierung der Gummimischung in der Zwischenkammer fortgeführt wird, e) Überführung der Gummimischung von der Zwischenkammer in den unteren Mischer (3), wobei der untere Mischer unterhalb der Zwischenkammer angeordnet ist.
摘要:
A process for preparing a thermoplastic polymer composition or a thermoplastic polymer blend, comprising: —from 20 to 80% by weight of at least one water-moist elastomer component A containing up to 40%, preferably up to 30% by weight of residual water, —from 20 to 80% by weight of at least one thermoplastic polymer B, —from 0 to 40% by weight of at least one further polymer C, and —from 0 to 60% by weight of additive(s) D, by mixing the elastomer component A with the thermoplastic polymer B and, if present, the further polymer C and, if present, the additive(s) D in an extruder, comprising the steps of precipitating the elastomer component A, and mechanical dewatering of the elastomer component A leads to improved salt-free products.