With the rapid development of modern industry, packaging industry in packing, packing speed and accuracy also have higher requirements, as the traditional quantitative
automatic packing scale is difficult to meet these requirements, and computer combination said is developed under this requirement.
Combination according to manufacturer's computer combination according to the basic structure is: the main vibration plate, the main vibration machine, vibrating wire plate, the vibrating wire machine, the feed hopper, weighing hopper, chute, hopper (
Optional)
, step motor, drive plate, module conversion device, main control board.
Computer combination weighing device is also called choose combination weighing apparatus, it is composed of multiple independent feed discharging structure of weighing units, general computer combination said consists of 8 ~ 32 weighing unit.
Computer by using the theory of permutation and combination to the weighing unit weight value for automatic optimization combination calculation, it is concluded that, the combination of close to the preset target weight value for packaging.
Ten weighing unit such as a combination of computer, each weighing unit for weighing, each weighing hopper and the weight data into the computer, the computer optimization combination, according to the combination of Numbers, ten weighing unit can achieve 1023 kinds of combinations, computer is chosen from among the 1023 kinds of combination is close to the combination of the objective weight values.
Such, match with artificial repeatedly, and it is difficult to accomplish the work of quantitative values, conform to the actual demand of modern packaging industry USES quantitative packaging.
Now in the market has a variety of combination, according to according to the number of weighing hopper, weighing accuracy, which can realize the weighing packaging speed range, the various parameters, such as to the requirement of using the environment can have different combinations of said product, the user can according to weigh the volume of material, often need to weigh the weight accuracy requirement, and the real conditions of existing plant and choose the right combination.
Accuracy under the condition of the same, the computer combination according to the weighing range of automatic quantitative packaging scale larger, usually quantitative
automatic packing scale under the same accuracy of the weighing range of control within the four times, and in a small computer combination said of weighing weighing range can be up to ten times.
From a large number of experimental results can also tell the weighing scale difference exist.
Such as 10 g to 1 kg of weighing scope, can achieve x (computer combination said
1)
Levels of accuracy requirements, especially in small weighing segment is rare.
To the accuracy level unchanged, only narrow scope of weighing automatic quantitative packaging weighers, formation period of weighing, relying on more than one series of products, production can realize the request of manufacturers one.
Generally, manufacturers are almost not accept this kind of phenomenon.
This creates the limitations for its practical application, different packaging specifications reach certain production areas (
10 -
1000克)
But the demands about the use of precision.
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