What are the characteristics of the front collector of the opener

On various types of openers, the front collectors mostly use two upper opening collectors connected in parallel with a counterweight on the front roller neck. The caliber of the collector, especially the width of the outlet of the collector (the height direction should be such that the frictional force limit is basically no or very small) varies with the number of miscellaneous items.

  The caliber elbow of the outlet hole of the collector in the design area can also be calculated by referring to the formula of the filling factor of the fiber in the outlet hole of the collector, and then determined after testing. Suppose that the fiber filling coefficient in the exit hole of the collector in the front area of the first opener is 3.3%.