Basing on the quality management whole process system, Tyvek is the breathable material and easy to produce static, which cause the consequence when the vacuum sucker absorbs Tyvek, it may absorb two pieces of Tyvek or even more. But there is no relevant testing during its production process, leading to the damaged heat seal in the following process. After making research on its physical property, we find that Tyvekis thin in depth and easy for light to penetrate. Also, its depth and weight per unit area are within a certain range.
According to its physical property, we develop a process to test it after its absorption. We add the laser transmission sensor and weighing sensor to the hardware and modify the program to test its thickness and weight. Through the methods mentioned above, we can ensure that there is only one piece of Tyvek access to the following process so as to prevent the heat seal from being damaged.
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