How Does a Linear Weigher Work?

How Does a Linear WeigherLinear Weigher Work?

A linear weigher is a machine used to weigh and dispense precise amounts of product into packaging containers. This type of machine operates on a principle of feeding individual product portions onto a weighing mechanism, which then enables the dispensing of a specific weight within a packaging container. This weighing system is essential in various industries such as food, pet food, pharmaceuticals, and chemicals where weight accuracy is critical.

Linear weighers are versatile machines that can handle different product sizes, shapes, and consistencies. These machines can process free-flowing products, powders, granular products, and products with irregular shapes such as nuts or chips. The machine's components include a hopper, feeder tray, and a linear vibrator that moves the product into the weighing bucket. Below is a detailed rundown of how the linear weigher works:

Product Feeding.

The linear weigher's operation begins when the product is fed into the hopper through inlet devices such as conveyors or chutes. The hopper's design is dependent on the product characteristics to ensure an adequate supply of product in the feed tray for weighing.

Product Dispensing.

Once the product is in the hopper, the feeder tray dispenses the product uniformly to the linear vibrator, which then moves the product onto the weighing buckets. The bucket is a small container that is filled with a specified weight of the product.

Weighing.

The multi-bucket system of the linear weigher ensures accurate weighing by combining and discharging a predetermined combination of the product's weight. The system uses load cells, which are sensors that detect and weigh each bucket's contents throughout the process. The system can verify the weight continuously in milliseconds, ensuring that the combined weight is within the tolerance range. If the combined weight is not within the tolerance range, the linear weigher's control system instructs the machine to discard the weighed product, thus maintaining weight accuracy.

Product Dispensing into Bags .

After the multi-bucket system has weighed the product, the control system instructs the machine to dispense the combination of the weighed product into the packaging containers. The packaging containers for the linear weigher can be bags, boxes, or jars. The containers are made to be compatible with the machine's dispensing mechanism to ensure that the product is dispensed uniformly.

In conclusion, the linear weigher is a machine that is vital in industries that involve product weighing and dispensing. The machine works by feeding the product into a hopper, moving the product onto a linear vibrator, weighing the product in the bucket system, and dispensing the product into packaging containers. Using a linear weigher ensures that weight accuracy is maintained, improving product quality, reducing waste, and enhancing productivity, and reducing labor costs.

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