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Multihead weigher
A multihead weigher is a fast, accurate and reliable weighing machine, used in packing both food and non-food products.
The multihead weigher was invented and developed by Ishida in the 1970s and launched into the food industry across the world.
Today this kind of machine, thanks to its high speed and accuracy, has achieved widespread adoption in the packaging industry and is produced worldwide by a number of manufacturers. Some manufacturers offer complete packaging lines, integrating the multihead weigher with other packaging machinery ranging from bagmakers (including Vertical Form Fill and Seal bagmakers) to traysealers such as Tray sealing machines, and inspection systems including check weighers and X-ray inspection systems.
A ‘typical target’ weight per pack might be 100 grams of a product. The product is fed to the top of the multihead weigher where it is dispersed to the pool hoppers. Each pool hopper drops the product into a weigh hopper beneath it as soon as the weigh hopper becomes empty.
The weigher’s computer determines the weight of product in each individual weigh hopper and identifies which combination contains the weight closest to the target weight of 100 g. The multihead weigher opens all the hoppers of this combination and the product falls, via a discharge chute, into a bagmaker or, alternatively, into a distribution system which places the product, for example, into trays.
Dispersion is normally by gravity, vibration or centrifugal force, while feeding can be driven by vibration, gravity, belts, or screw systems.
An extra layer of hoppers (‘booster hoppers’) can be added to store product which has been weighed in the weigh hoppers but not used in a weighment, thus increasing the number of suitable combinations available to the computer and so increasing speed and accuracy.
Multihead weighing can help in the following ways:
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Multihead weigher AI simulator
(@Multihead weigher_simulator)
Multihead weigher
A multihead weigher is a fast, accurate and reliable weighing machine, used in packing both food and non-food products.
The multihead weigher was invented and developed by Ishida in the 1970s and launched into the food industry across the world.
Today this kind of machine, thanks to its high speed and accuracy, has achieved widespread adoption in the packaging industry and is produced worldwide by a number of manufacturers. Some manufacturers offer complete packaging lines, integrating the multihead weigher with other packaging machinery ranging from bagmakers (including Vertical Form Fill and Seal bagmakers) to traysealers such as Tray sealing machines, and inspection systems including check weighers and X-ray inspection systems.
A ‘typical target’ weight per pack might be 100 grams of a product. The product is fed to the top of the multihead weigher where it is dispersed to the pool hoppers. Each pool hopper drops the product into a weigh hopper beneath it as soon as the weigh hopper becomes empty.
The weigher’s computer determines the weight of product in each individual weigh hopper and identifies which combination contains the weight closest to the target weight of 100 g. The multihead weigher opens all the hoppers of this combination and the product falls, via a discharge chute, into a bagmaker or, alternatively, into a distribution system which places the product, for example, into trays.
Dispersion is normally by gravity, vibration or centrifugal force, while feeding can be driven by vibration, gravity, belts, or screw systems.
An extra layer of hoppers (‘booster hoppers’) can be added to store product which has been weighed in the weigh hoppers but not used in a weighment, thus increasing the number of suitable combinations available to the computer and so increasing speed and accuracy.
Multihead weighing can help in the following ways: