Pneumatic hammer

Abstract

The invention discloses a pneumatic hammer comprising an air supplying device, a cylinder, a piston, an airflow conversion valve, a piston resetting device and a striking device, wherein the piston for separating a first chamber and a second chamber is arranged in the cylinder; a piston rod hermetically penetrates through the second chamber and is connected with the striking device; an exhaust port C3 is arranged on the cylinder; an airtight damper for separating the first chamber and a third chamber is arranged in the cylinder, and is provided with the airflow conversion valve on the side of the third chamber; a movable valve block of the airflow conversion valve is driven to rotate around a rotating shaft by the pressure difference generated by alternate changes of pressure in the first chamber or the second chamber so as to alternately connect or disconnect the communication between the first chamber or the second chamber of the cylinder and the compressed air; and thus, the purpose of striking round nails can be achieved by driving the piston to reciprocate to drive the striking device connected with the piston rod to reciprocated under the condition with the compressed air. The invention provides a high-efficient and professional pneumatic hammer capable of automatically striking the round nails.

Description

technical field [0001] The invention relates to an automatic nail driving device, in particular to a round nail automatic driving installation tool for carpentry. Background technique [0002] At present, nail hammers on the market rely on manual hammering to complete the nailing process. During the operation, the operator swings the nail hammer to hit the bottom of the nail, so that the nail is embedded in the object to be fixed. This method is used There are limitations. First of all, it takes a lot of force to nail the nails through a hammer, and the labor intensity is high. Secondly, nails need to be held by fingers to hold the middle of the nail by hammering. During the hitting process, once there is a deviation, it is easy to hit the fingers, causing injury accidents, and its safety is low. Finally, even for professional carpenters, if a large number of nails need to be nailed every day, even skilled workers, under the premise of ensuring accuracy, it is difficult to...

AI Technical Summary

Problems solved by technology

First of all, driving a nail with a hammer requires a lot of force to drive the nail in, and the labor intensity is high.

Secondly, nailing with a nail hammer requires fingers to hold the middle of the nail. During the hitting process, once there is a deviation, it is easy to hit the finger, causing injury accidents, and its safety is low.

Finally, even for professional carpenters, if a large number of nails need to be nailed every day, even skilled workers can hardly nail more than 20 nails per minute by hand under the premise of ensuring accuracy. nails, work efficiency is also low

Therefore, in the prior art, also there is not a kind of power tool that can realize the process of finishing nails in an automatic manner.

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