The development history of checkweigher, what is the difference between checkweigher and belt weigher
development history Checkweighers have been developed for more than 60 years. As early as 1933, the product checkweighing operation method of using mechanical equipment to automatically transport products to the carrier for weighing has been realized. The first successful operation of the checkweigher as a commercial weighing instrument in the world was completed in 1953 by the Ilumatronic Company of California, USA. In 1960, the first batch of checkweighers received type approval. In the mid-1960s, the American company Illumatronic changed its name to Icore (see Figure 1-6 for its logo) and later acquired Acurex. In 1985, Ilcore was managed and controlled by Ramsey (Ramsey, a weighing company known for its top belt scale equipment) engineering company in Minnesota, USA. It set up checkweigher production bases in the United States and Japan, and set up offices and offices around the world. Agents. In 1994, Thermo Fisher Scientific integrated Ramsey, Hitech Electronics, Hunting, RCCI , and Italy The most professional checkweigher manufacturing companies in various industries, such as Tecno Europa and Best Inspection. Through Thermo Fisher Scientific's Thermo Scientifie brand, the rich heritage and application experience of checkweighers can be continued. The checkweigher has become an important product in the company's weighing products. The difference between checkweigher and belt scale Most checkweighers use belt conveyors, and their weighing principle is also realized under the condition of dynamic material delivery, which is similar to belt scales. However, there are still many differences between the two. The main difference is: the weighing object of the checkweigher machine is an item with a pre-packaged discrete load, such as an item that can be directly separated (such as a fish, a box of tablets), or it may be Packaging bottles, bags, boxes and other items, while the weighing objects of belt scales are mostly bulk powder, granular, and block materials. It is the carrier of continuous load checkweighers. The weighing is mostly a short length. The overall weighing on the belt conveyor of the weighing section, and the load of the belt scale is mostly partial weighing on the long-distance belt conveyor. The checkweigher usually includes a load cell, a photoelectric tube and a rejection device, while the belt scale The weighing purpose of the checkweigher usually including the load cell and the speed sensor is to get the weight of each item (displayed in mg, g, kg), and the weighing purpose of the belt scale is to obtain the instantaneous flow rate of the material (in kg/h, t/h as the unit display) and cumulative flow (in kg, 1 as the unit display). The above is about the development history of the checkweigher and the difference between the checkweigher machine and the belt weigher.
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