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Lesson 20 Filling Systems 第20课 充填灌装系统 content Introduction Liquid Filling Liquid Volumetric Filling Liquid Constant Level Filling Dry Product Filling Dry Volumetric Filling Dry Filling By Weight Filling By Count Introduction 1. What a filler can be asked to do? Fillers, filling machines, are used to transfer many types of products from bulk storage bins and vats into the containers in which they find their way to the market. The great variety of products that are packaged and the containers that they fill has caused the development of a large number of processes, techniques, and machines that are used for product filling. 2. Considerations in selecting a filler Types of products: from very thin liquids to semi-liquid products, pastes, and solids; stable, volatile, explosive, hot, frozen products. Size, shape, and construction of the containers: glass bottles and jars, plastic bottles and cartons, paperboard boxes, metal cans, and plastic or paper bags. Way the product is measured: by volume, weight, or count. Introduction Desired speed of the operation: a relatively slow manual operation, semi-automatic, fully automatic ( high speed lines) Special handling requirements of the product Cost of installation Operation Liquid Filling 1. Introduction Liquid products: alcohol and soda water Semi-liquid products: toothpaste, peanut butter, and caulking compound Liquid Filling 2. Types of Filling Machines The containers may be made of plastic, metal, glass, treated paperboard, or a number of other materials. The shapes of the containers include those of bottles, jars, vials, tubes, cans, pouches, cartons, and drums (Figure 20.1). Figure 20.1 The shapes of the containers Most liquid and semi-liquid products are filled by one of two major methods: volumetric, or constant level filling. In volumetric filling the amount of product is premeasured so that each container has the same volume of product. Constant level filling tech