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 Posted: Sun 1:56, 08 May 2011 Post subject: Hollister sale Solid -like properties of food pack |
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Solid-like characteristics of food materials, methods of filling packaging machine
Therefore, only the displacement and measurement of the following type of selection described. 3.1 Volumetric displacement filling technique filling technique used in those relatively constant proportion of the material, or for those size requirements is more important than the quality requirements of the material. Displacement depends on the quality of each filling volume and filling time filling the density of the material. Often cup-type, screw-type precision measurement of the two. ① cup-type fill their cups and adjustable cup from a fixed composition. Only suitable for small particle size, uniformity, the value of small and low moisture content of materials. Measurement accuracy is generally ± 1%, filling speeds of up to 70 times / minute,[link widoczny dla zalogowanych], measuring range of the general control of lO00ml below. The filling volume of often divided into 10 ~ 1OOml,[link widoczny dla zalogowanych], 1O0 ~ 30Oral, 300 ~ 60Oral, 800 ~ 1O00ml four forms, the same filling equipment, replacement and adjustment of the measuring cup can achieve different kinds of filling volume. For water, the consumption of iodized salt in order to fill, for example, if the salt water content of 0.3%, the filling method can get higher accuracy and speed; when the water content of more than 1%, the device performance will be dramatically decline. If you also use this filling method, you must change the feeding device and the discharging device. ② Screw screw spiral groove filling the cavity using measured material. As each pitch has a theoretical capacity, so by controlling the rotation of the screw rotation to obtain the required filling volume. The main suitable for powder or granular material measured. 『J for the other special mobile poor,[link widoczny dla zalogowanych], porosity, and easy to knot arch materials, such as flour, edible starch, coffee powder materials. Measurement accuracy of ± 1% in general, filling up to 30 times / minute, measuring range of the general control of 500Oral below. For fragile materials can not be such small particles filling way. 32 Weighing Filling Weighing filling the feed material into the body will be measured to the weighing bodies, when it reaches the set weight, feed it to stop working, and then open the door by the discharge body discharge, which Weighing filling work done. With high accuracy, often up to -4-0.1%; weighing ranges from 500g ~ lO00000g. Common types of weighing bodies are leveraged, reed, reed combination lever, the resistance strain gauge type, and so, in which resistance strain gauge measurement is the main form of food material. Intermittent and continuous filling of two forms. ① intermittent intermittent filling with gross weight and net weight of type two. Gross formula】 【GW-type measurement is the non-filling bucket load. Mainly used for high viscosity and easy caking or filling material and food, not suitable for large containers or quality changes in the quality of the larger places, environmental requirements are also higher on the filling. Relatively low accuracy in terms of net-type, but the filling speed is higher. Therefore, in the food packaging field,[link widoczny dla zalogowanych], choose this way of filling materials must be considered with the required precision. Net weight formula】 【type filling and bucket with a single measurement, multi-metering and multi-bucket bucket combination of three types. Single measurement of bucket filling machine filling and multi-metering works exactly the same bucket, so the scope is also similar. Mainly used for better mobility, uniform particles of materials weighing filling, widely used in food packaging industry. But generally not suitable for films, and water content of a large block of filling material. Filling method of two structural difference is the difference, multi-metering hopper for the material structure by a 2 to 4 measures to fight for the material, so this means filling fast. Weighing more than filling bucket combination is the most advanced weighing Filling way. A 5 to 14 independent measurement of individual, controlled by the control system with random combinations of the 3 lJ 7 fight at the same time discharge. Extremely broad in scope, especially the other 『J is uneven and irregular particles of materials especially for the measurement, such as potato chips, candy, fruit. This represents a weighing machine Filling machine direction, but expensive. A ∥ Can be used for uniform size, small granular materials, measurement of raw materials before processing. The measurement accuracy of ± 0.25% or so. As people's living standards improve, the quality of the food packaging will become increasingly urgent with the demand, and how the different characteristics of food materials, design a very appropriate and excellent performance of the filling method, researchers are packaging often a major concern . As the field of food packaging contains many properties and filling system of technical problems caused by the interaction, and the physical constraints of food in all aspects of packaging operations. Therefore, this paper only from the material characteristics, analyzes the main factors affect the way filling,[link widoczny dla zalogowanych], and filling strategy is proposed in order to hope to resolve the choice between the two conflicts. Mu State Fish l7 / 1 {ll
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