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Home Cooking Continuous-mixer

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 Continuous mixer

Details
Inventors: Kuroda, Yoshinori; Ueda, Hiroshi; Kashiwa, Masahiko; Yasuda, Shoji; Hotani, Shin; Tanaka, Yoshimitsu;
Assignee: Kobe Steel, Ltd. (Kobe, JP)
Primary Examiner: Soohoo; Tony G.
Assistant Examiner:
Attorney, Agent or Firm: Oblon, Spivak, McClelland, Maier & Neustadt, P.C.

A continuous mixer in which a pair of left and right rotors 4 are rotatably inserted into a chamber 2 having a feed port 13 and a discharge port 14 for materials at both axial ends, respectively, a gate device 17 for adjusting the polymer flow resistance of the materials is provided halfway in the axial direction of the chamber 2, and a first and a second mixing portions 19, 21 are formed at portions, respectively, of the rotors 4 positioned upstream and downstream of the gate device 17, wherein a forced feed means 23 for forcibly post-adding the materials is connected to a portion downstream of the gate device 17 in the chamber 2 and upstream of the discharge port 15.

DETAILED DESCRIPTION It is an object of the present invention to provide a continuous mixer, in which post-addition of materials can be positively accomplished whereby adjustment of a filler concentration of the compound and adjustment of blend of final products can be accomplished easily.
The present invention provides the continuous mixer formed with a first and a second mixing portions at rotor portions located upstream and downstream, respectively, of a gate device, in which a forced feed means for forcibly post-adding materials is connected to a portion downstream of the gate device in a chamber and upstream of an exhaust port.
According to this arrangement, since the materials can be forcibly post-added to the portion downstream of the gate device in the chamber and upstream of the exhaust port, the post-addition of the materials to the second mixing portion can be accomplished evenly and sufficiently, and the adjustment of a fillers concentration of the materials and the adjustment of final products can be accomplished easily.
It is noted that for the forced feed means, there can be employed a screw feeder comprising a carrying cylinder connected vertically to the chamber and a feed screw rotatably inserted into the cylinder.
In the present invention, separately from the forced feed means, there is provided a vent port at a portion downstream of the gate device in the chamber and upstream of the exhaust port.
According to this arrangement, the post-addition of the materials becomes enabled while exhausting volatile gases from the vent port, and the adjustment of a filling concentration of the materials and the adjustment of final products can be accomplished easily while keeping the better quality of the products.
In the present invention, a mixing strength adjusting means for adjusting a mixing strength of the compound materials in the second mixing portion is provided at the exhaust port of the chamber or a portion down stream of the second mixing portion.
According to this arrangement, the mixing strength of the compound materials after completion of the post-addition from the forced feed means can be also adjusted adequately by the mixing strength adjusting means



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