Provided are a rubber material supplying method and a rubber material supplying device, whereby a rubber material can be smoothly supplied to a rubber inlet even when the width of the rubber material is greater than the width of the rubber inlet. The rubber material supplying method includes a separation step S1, a processing step S2, and an input step S3. In the separation step S1, a plurality of different cutouts 30 are formed in a leading end section GF of a rubber material G, and the leading end section GF is separated into three or more strip shape sections 31. In the processing step S2, second strip shape sections B, and not first strip shape sections 31A, among the plurality of strip sections 31 are each cut out or folded. In the input step S3, the leading end section GF is input to the rubber inlet 3A from the first strip shape sections 31A.

A mixing and extrusion machine (10) for the manufacture of rubber mixtures includes a mixer with a converging conical twin-screw (12) with a fixed frame (14) that supports sleeves (16). Two screws (18), being mounted at an angle, are mounted in the mixer (12) in such a way as to move in translational movement between an opening (22) arranged upstream and an outlet (25) arranged downstream of the sleeves. The screws are mounted in the sleeves with removable doors including sliding shutters (40) installed relative to the outlet (25). The sliding shutters move linearly between a closed position, in which the sliding shutters prevent the mixer from discharging the mixture, and an open position, in which the sliding shutters prevent discharge of the mixture through the sides of two counter-rotating rollers (32) of a roller nose type system located just downstream of the outlet.

A filtering device for a plastic material in the molten state includes a hollow body having a mouth and a cover; an inlet way and an outlet way for the filtered plastic material; two filters arranged side by side; a rotary cleaning device arranged between the two filters and provided with scraping elements cooperating with the filtering surfaces; and an evacuation device configured to discharge the impurities toward an evacuation outlet, the evacuation device being arranged centrally in such a way that the impurities travel along equal paths with the same flow rate and discharge the impurities in a balanced manner on the evacuation device.

The present invention relates to a connection adapter for connecting two melt-guiding components having two adapter halves having connection means for connection to a respective one of the components and having connection means for connecting the two adapter halves to one another and having a melt-guiding piece that is adapted to a first of the melt-guiding components by a first opening cross-section and to the second of the melt-guiding components by a second opening cross-section. The invention furthermore relates to a melt processing plant having two melt-guiding components such as an extruder and a pelletizer that are connected to one another by such a connection adapter. In accordance with the invention, the melt-guiding piece is formed separately from the adapter halves and is tensionable against the melt-guiding components by the mutually connected adapter halves.

The present invention relates to a continuous manufacturing process for a rubber masterbatch and a rubber masterbatch prepared therefrom. The manufacturing process comprises the following steps: step 1): a filler is added to a rubber solution, forming a rubber/filler/solvent mixture by stirring; and step 2): the solvent is removed and the mixture is dried, resulting in a rubber/filler masterbatch. The present invention also relates to a masterbatch prepared by the above-mentioned process and a rubber article prepared using the masterbatch. Compared to the wet mixing technologies in the prior art, the present invention has no specific requirements of rubber and filler, with a wider scope of usage. In addition, the filler has a high dispersion in rubber compounds, the production process thereof is continuous, highly efficient, low in energy consumption and labour, and thus low in cost.

The present invention relates to a continuous manufacturing process for a rubber masterbatch and a rubber masterbatch prepared therefrom. The manufacturing process comprises the following steps: step 1): a filler is added to a rubber solution, forming a rubber/filler/solvent mixture by stirring; and step 2): the solvent is removed and the mixture is dried, resulting in a rubber/filler masterbatch. The present invention also relates to a masterbatch prepared by the above-mentioned process and a rubber article prepared using the masterbatch. Compared to the wet mixing technologies in the prior art, the present invention has no specific requirements of rubber and filler, with a wider scope of usage. In addition, the filler has a high dispersion in rubber compounds, the production process thereof is continuous, highly efficient, low in energy consumption and labour, and thus low in cost.

A mixing and extrusion machine for tire sealant materials of the type comprising: a dump extruder equipped with conical converging twin screws located in a batching chamber, said chamber having a low pressure feeding area and a high pressure ducted area; a removable blind flange for temporarily sealing the outlet of said batching chamber so that said material is forced to recirculate between said duct area and said feeding area within said batching chamber, said chamber thereby also acting as a compounding chamber; and an inlet port located in the high pressure ducted area, the inlet port capable of introducing a diluent during mixing of a tire sealant material.

Embodiments of an invention disclosed herein relate to devices, processes, and systems for processing one or more polymers.

In one or more rubber mixtures for vehicle tires, production processes and systems are provided for control of water content in a rubber mixture as a function of controlling temperature and water flow rate.

A method and an apparatus for operating a screening wheel filter for high-viscosity melts with pressures of >10 bar and temperatures of >90 C., wherein a screening wheel (1) is rotationally driven step by step, and screening inserts (2) arranged in the screening wheel (1) are successively subjected to a stream of cleaning agent produced by a cleaning agent drive (9) in a backflushing cleaning station, are to be optimized in such a way that less cleaning agent is used, better cleaning of the screening inserts takes place and a saving of energy is ensured. For this purpose it is proposed that the cleaning backflushing in the backflushing cleaning station takes place during the rotation of the screening wheel (1), wherein an open-loop or closed-loop control device (7) assigned to the cleaning agent drive (9) is used to set the amount of cleaning agent and/or the pressure of the cleaning agent and/or the flow rate of the cleaning agent in dependence on the rotational speed of the screening wheel (1) and/or in dependence on a differential pressure prevailing at the screening inserts (2) located in the melt channel (4) and the effective opening of the slot die normal to the radial is less than the distance covered by the screening wheel (1) during a driving step.