Working principle of heavy stapler

Heavy stapler is a machine or tool that binds pages or paper into books. It can improve the automation of book binding. The heavy stapler has simple structure, and is generally only used for binding pages with small thickness, or sealing paper bags and packaging bags.

The working principle of an ordinary heavy stapler is that when the end cover of the heavy stapler is pressed by hand, the thimble, needle and clip will rotate around the connecting needle. With the continuous application of manual force, the top will rotate to get out of its natural state. At this time, the top will move up and down around the connecting pin, slightly higher than a needle height, the end cover spring will be compressed, the shrapnel will be compressed, and then the driven needle will move down After a certain distance, the needle will touch the place that needs to be bound. After the needle passes through the object, the needle will touch the mold and the needle will bend, so as to realize the penetration and combination of the needle and the object; After the binding is completed, people remove the needle end cap and under the action of force, the shrapnel will rebound, and the needle, clip, ejector and end cap will rise under the action of elasticity, and then the shrapnel will rebound. The end cap spring will raise the ejector and end cap again, and the ejector will be separated from the fixture; The expansion of the push spring causes the needle to feed again, returning the heavy stapler to its initial state and waiting for re binding.