Agitating – Rubber or heavy plastic working – With specified feed means
Patent
1981-08-28
1984-06-19
Simone, Timothy P.
Agitating
Rubber or heavy plastic working
With specified feed means
366 77, 366 81, 366 83, 366601, B01F 708, B29B 110
Patent
active
044550910
ABSTRACT:
A process for regulating the mixing process of rubber mixtures utilizes an internal or closed mixer having a casing containing two paddles with feed and mixing blades mounted on shafts which extend with parallel axes through a mixing chamber. The shafts are arranged to be driven in opposite directions at variable speeds and the mixer is provided with a pressure-operable plunger for closing the mixing chamber. The temperature of the mixing process is controlled with the aid of a thermometer probe and the mixing sequence is controlled on the basis of energy marks and a superimposed desired/actual value follower control of the mixing temperature via the specific energy supplied to the mixture in the mixing chamber, the speed at which the shafts and hence the paddles are driven and/or the pressure applied by the plunger serving as variables for the temperature control.
REFERENCES:
patent: 3447201 (1969-06-01), Seanor et al.
patent: 4058297 (1977-11-01), Seufert
patent: 4234259 (1980-11-01), Wiedmann et al.
Journal Kautschuk-und Gummikunststoffe, 1971, No. 3, pp. 119 to 127.
Journal Gummi Asbest Kunststoffe, 7/78, 31, pp. 512-515.
Bamberger Wolfgang
Wiedmann Werner
Simone Timothy P.
Werner & Pfleiderer
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