Working principle of stapler

The working principle of the stapler is that when the end cover of the stapler is pressed by hand, the top, needle and fixture will rotate around the connecting pin. With the continuous application of hand force, the top will rotate out of its natural state. At this time, the top will make a nearly up and down movement slightly higher than the needle height around the connecting pin, the end cover spring compression and shrapnel compression, and then drive the needle to move downward, After moving a certain distance, the needle will contact the object to be bound and pass through the object under the action of manpower. After passing through the object, the needle will touch the mold and bend the needle, so as to realize the penetration binding between the needle and the object.

After finishing the binding, the person removes the force on the needle end cover. At this time, the shrapnel will rebound, and the needle, fixture, top and end cover will rise under the action of elastic force. Then, the rebound of end cover spring will make the top and end cover rise again, and the top will be separated from the fixture; The expansion of the push spring causes the needle to feed again, so as to restore the stapler to its initial state and wait for binding again.