包装真空机设计

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包装真空机设计With the socialization and modernization of the production and circulation since more than half a century，products packing is flourishing with a completely new feature and attached importance widely.
The main purpose of this design is to realize the automatization of acid vegetable processing. It introduces the conception and category of the filling machine. The design aims at the infusing liquid system of the product line of acid vegetable automatic packing. We confirm every part of the system and install it according to the study of machinical design. We decide to use the air pump as the power fountain and realize sucking liquid and infusing liquid by the reciprocating of air urn and the reversed setting of two mon-return valves after calculating.Consequently，we achieve the purpose with a more simple configuration.
The infusing liquid system of the product line of acid vegetable automatic packing have simple configuration，. It is tighten and easy to produce， mend and handle .Also it cost low .It is widely used in small and middle food manufactories.

Key word: air pump；air urn；mon-return valve；eleceromagnetism cross valve；limit switch；stores the fluid cylinder；auto control

目 录

摘 要 I
Abstract II
第1章 绪 论 1
1.1 课题背景 1
1.2 课题目的与意义 1
1.3 我国食品和包装机械的发展现状 3
1.3.1 食品和包装机械工业初具规模 3
1.3.2 基本形成了为食品加工业提供成套装备的能力 3
1.3.3 在部分领域形成了大型关键单机生产制造能力 3
1.3.4 我国食品和包装机械工业与发达国