Feeding door of internal mixer

Abstract

The invention discloses a feeding door of an internal mixer, which comprises a first seal, a second seal and a third seal besides a feeding door panel and a fixed plate, wherein the first seal comprises a pressure plate, a first stick and a first elastic component; the pressure plate is arranged at one end, close to a wallboard, of the feeding door panel; the surface, facing the wallboard, of thepressure plate is provided with a groove; the first elastic component jacks the first stick in the groove, and the first stick is propped against the wallboard; the second seal comprises a movable plate, and the movable plate is arranged on the pressure plate; the surface, facing the wallboard, of the movable plate is provided with a groove, while the other opposite surface is connected with a movable mechanism; a seal strip propped against the wallboard is arranged in the groove; the upper part of the movable plate is provided with an adjustable second elastic component; the third seal consists of an abrasion-resistant strip arranged at the bottom of the movable plate; and one end of the second elastic component is connected with the fixed plate. The feeding door of the internal mixer can effectively reduce the production of powder spray and powder leakage of the feeding door during milling after long-term use.

Description

technical field [0001] The invention relates to the field of tire production and processing, in particular to an internal mixer feed door. Background technique [0002] In the production process of rubber tires, the leakage of carbon black dust from the feed door of the internal mixer has always been difficult to solve. This not only affects the hygiene of the workshop machine and the production environment, but also directly affects the quality of tire products. The dust leakage from each machine is estimated to be about 60 kilograms per week, causing serious pollution to the working environment. At present, the following two structures are mainly used for the feed door of the internal mixer to prevent the leakage of carbon black dust. [0003] The first is the F-type feed gate. The feed door adopts a rectangular polytetrafluoroethylene plastic strip mounted on a steel pressure plate, which is equivalent to a structure in which the plastic strip is pressed against the wal...

AI Technical Summary

Problems solved by technology

However, when the door panel of the feeding door is deformed, the wallboard is more worn, or the steel pressure plate is worn, the sealing structure of the two feeding doors will cause powder spraying and powder leakage during the rubber mixing process.

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