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Introduce: combinated multihead weigher
- Jan 31, 2019 -

Introduce: combinated multihead weigher


frozen food multihead weigher

This article introduce a advance automatic weigher-how the combination scale invent and develop.Analysis its technique feature and advantage.And this article introduce its application.And this article show combination scale industry is with huge and bright future. 


First, why invent a combination scale?


Last 70s,Japanese agricultural institution give the weighing enterprise question about green pepper weighing.In Japan,green pepper is sold in the bag in a certain weight.If the certain weight is 120g,this weight is hard to be accuracy. Especially, the size of green pepper are not same.Traditional weighing is manual.Weighing the green pepper by electronic scale.One add one to weigh until total weight is 120g.But when the weight is 115 g,find a green pepper which is 5 g is a hard thing.Do it again and again makes you crazy.



What solute this problem is the invention of combination scale aslo named multihead weigher.


Combination scale also named multihead weigher,it is consist with many independent hopper which is dumping and outputting.There are 8 to 32 weighing units in a multihead weigher. The computer select several ones whose weight is the same as the weight preset.These units are selected random.If the multihead weigher has 10 head,there is total 1023 solution to weigh the material,that means,1023 kinds of weight can be choose.Computer choose one of them. The one’s weight is same as the weight we want.


That is the right invention, combination scale.


Second,The multihead weigher technology feature.


a. High weighing accuracy,there are 3 ways confirm the accuracy.


b. Select the sample one more time.


Such as the 10 head multihead weigher  mentioned,after the computer select 3 hoppers as first weight,next time,the computer will weigh this 3 hoppers again to find in this time whether its weight is same as previous one,if not,the computer will select another 3 hopper whose weight is same as the preset one(that we want)


c. delete the dust weight


The weighing hopper will open 4 to 5 times,to reduce the dust on it.


And the computer combination scale will delete the dust weight and renew the whole combination scale weighing weight


d. Prevent the bad influence to accuracy from ground vibration


Because the computer combination scale operate in the workshop,the motor will create vibration on the ground.In order to reduce such influence to combination scale,there are a vibration loadcell added exclude weighing loadcell.It will eliminate the vibration data from total data.  



Third,weighing with high speed


a. data signal process technology 


Weighing data produced from weighing signal,this data process is made by computer chip.


b. stepper motor control hopper


Stepper motor can control weighing hopper speed and size.Especially it can adjust the hopper smaller when the material weight is low.


Domestic combination scale has a clear price advantage, the domestic combination scale has been gradually popularized. However, at present, the domestic combination of scale manufacturers is complicated, large one can enter the world combination scale manufacturing first-class level, small one is difficult to survive. If you choose an unsound suuplier, your  production is not only affected by their low products, but also the repair of it.  the most critical is not prevent problems inadvance, so you will in trouble of repairing. This includes the program itself is not perfect, but also need to be the material Condition Foundation change ability is poor enterprise, in addition to the line main vibration machine amplitude repeated attenuation of the problem and AD conversion module and anti-jamming technology does not integrate the manufacturing enterprises, there is no way to effectively suppress the interference from all over the vibration. This aspect, Kenwei along the way, feeling quite deep. Kenwei Professional focus on the combination of scales, has been in the industry's top three, manufacturing and sales scale are ranked at the top of the industry. Is China's first in the field of multihead weigher won the "Guangdong Province production, learning and research science and Technology Project Combination Award" honor of the company, in 2017 rely on 87 foreign countries, domestic and foreign more than 800 new and old customers strong support, to achieve the sale of more than 5,000 sets of weighing packaging equipment, 2018 precision Company layout semi-automated production mode, Refine the specialized production mode of parts, can accelerate the production cycle at the same time to achieve 7000 sets of capacity. Kenwei has no doubt become the packaging machinery industry on the basis of confidence in the brand.


Kenwei is China's first in the field of multihead weigher won the "Guangdong Province production, learning and research science and Technology Project Combination Award" honor of the company, in 2017 rely on 87 foreign countries, domestic and foreign more than 800 new and old customers strong support, to achieve the sale of more than 5,000 sets of weighing packaging equipment, 2018 precision Company layout semi-automated production mode, Refine the specialized production mode of parts, can accelerate the production cycle at the same time to achieve 7000 sets of capacity. Kenwei has no doubt become the packaging machinery industry on the basis of confidence in the brand.



Note: From our multihead weigher parter, Kenwei Intellectualized machinery .