The combination of multi-head microcomputer scale
Traditional quantitative automatic packaging scales generally go through the weighing process of coarse measurement and fine measurement, especially the process of fine measurement requires a little addition, which takes a long time and affects the weighing speed. For example, the weighing speed of a quantitative automatic packaging scale under 1 kg is generally 20 to 30 packs / minute, and the multi-head microcomputer combination weigher generally weighs 100 to 120 packs in 14 weighing units in the fast optimization combination calculation of the computer. Minutes, 4-6 times faster than the quantitative automatic packaging scale, and easy to match with various packaging machines. Greatly improve the packaging efficiency, more suitable for the needs of modern production management.
When the accuracy is the same, the weighing range of the multi-head microcomputer combination scale is larger than that of the quantitative automatic packaging scale. In general, the weighing range of the quantitative automatic packaging scale under the same accuracy is controlled within 4 times. The weighing range of the small weighing section can be up to ten times. It can also be seen from a large number of test results that there is a difference in the weighing range between the two. For example, in the weighing range of more than ten grams to 1 kilogram, the multi-head microcomputer combination scale of the combination scale manufacturer can reach the accuracy level of X (1) level, especially in the small scale section. If you want to keep the accuracy level unchanged, the quantitative automatic packaging scale can only reduce the weighing range and form a multi-segment weighing, and only rely on the production of multiple series of products to meet certain requirements of the manufacturer. Most manufacturers rarely accept this phenomenon. This brings limitations to its practical application, and can not meet the requirements of different packaging specifications (10-1000g) in some production areas but requiring similar accuracy.
The multi-head microcomputer combination weigher is composed of multiple weighing units with independent feeding and discharging structures. Generally, the microcomputer combination weigher is composed of 8 to 32 weighing units. The computer uses the principle of permutation and combination to automatically and optimally calculate the weight values ??of each weighing unit to obtain a good combination that is close to the preset target weight value for packaging. For example, a multi-head microcomputer combination weigher with ten weighing units, each weighing unit weighs during weighing, and reads the weight data in each weighing hopper into the computer, and the computer performs the optimal combination. Numbers, ten weighing units can realize 1023 combinations in total, and the computer selects combinations close to the target weight value from these 1023 combinations. In this way, it is easy to solve the work of manual matching and it is difficult to achieve quantitative values, which meets the actual needs of modern packaging industry to adopt quantitative packaging.
Now there are various combination scales on the market. According to the number of weighing hoppers, weighing accuracy, achievable weighing packaging speed range, requirements on the use environment and other parameters, there can be different combination scale products. The volume of the material, the accuracy requirements for weighing the weight, and the actual conditions of the existing plant are often used to select the appropriate combination scale.