An import and export port door of a continuous vacuum production line

Abstract

The invention discloses an entrance / exit end door of a continuous vacuum production line. The continuous vacuum production line comprises a stander. The entrance / exit end door is characterized by adopting a push away-closing type. The end door is arranged at the lower part of the stander at a port of the vacuum production line. The entrance / exit end door has the benefits that 1, no expensive gate valve is adopted, so that the cost is greatly reduced; 2, the whole structure is arranged at a free space position of the stander at the front lower side of the production line, so that no effective space is occupied; 3, by the adoption of the push away-closing type openable furnace door structure, the requirement on the processing precision is low, mounting and maintenance are facilitated, and the manufacturing cost is low.

Description

technical field [0001] The invention relates to an inlet and outlet port door of a continuous vacuum production line. Background technique [0002] The entrance and exit gates of the existing continuous vacuum production lines mostly use flapper valves located above or on the side of the production line, because the continuous vacuum production line is equipped with a circular product conveyor belt, which must pass through the entrance and exit end and connect to the rotary conveyor belt outside the furnace. to achieve cycle turnover. If the side-opening door is adopted, the space of the conveyor belt in front of the entrance and exit will be occupied when the door is opened, which hinders the loading of products on the conveyor belt. This is an important reason for using a sliding door. However, the flapper valve is relatively expensive, and the equipment requires a higher elevation for the equipment when installed vertically. If it is installed sideways, it must be instal...

AI Technical Summary

Problems solved by technology

However, the flapper valve is relatively expensive, and the equipment requires a higher elevation for the equipment when installed vertically. If it is installed sideways, it must be installed on the other side of the circular conveyor line outside the swing line outside the furnace, which occupies more space on the side of the production line. These design choices All are unreasonable and not ideal; Another problem is that the main structure of the existing flapper valve as the end door is complicated in technology, high in machining accuracy and expensive in cost.

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