Rubber internal mixing device

Abstract

The invention belongs to the technical field of rubber internal mixing, and particularly relates to a rubber internal mixing device which comprises an internal mixing box, a pressurizing plate, a hydraulic rod and a mounting frame, wherein the internal mixing box is of a rectangular groove-shaped structure with an opening in the top; the internal mixing box is fixedly mounted on the upper surface of a workbench; two groups of internal mixing rotors which rotate relatively are arranged in the internal mixing box; and rotating shafts at the rear ends of the two groups of internal mixing rotors are movably mounted on the rear side wall of the internal mixing box, and rotating shafts at the front ends of the internal mixing rotors extend out of the front side wall of the internal mixing box to be fixedly connected to the center position of a circular gear disc. By arranging a feeding box, an inclined partition plate and a sliding sealing plate, raw materials for internal mixing can be put into the raw material chambers in the feeding box correspondingly, the raw materials can be automatically added in sequence by pushing the sliding sealing plate to move upwards when the pressurizing plate moves upwards, and workers do not need to stay beside an internal mixing device for feeding, and scald cannot be caused in the feeding process.

Description

technical field

[0001] The invention belongs to the technical field of rubber internal mixing, in particular to a rubber internal mixing device. Background technique

[0002] The closed type rubber mixer is referred to as internal mixer, also known as kneader, which is mainly used for plasticizing and mixing of rubber. Internal mixer is a kind of machine with a pair of rotors with specific shape and relative rotation, which intermittently plasticizes and kneads polymer materials in a closed state with adjustable temperature and pressure. It is mainly composed of a mixing chamber, a rotor , Rotor sealing device, feeding and pressing device, unloading device, transmission device and machine base and other parts.

[0003] When mixing rubber, it is necessary to add raw materials in strict order to ensure the quality of rubber. For example, in some processes, first add raw rubber for mixing for 1 minute, then add small materials and mix for 1.5 minutes, and then add carbon black...

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