Patent ID: 9073176
Filing Date: 2015-07-07
Classification: B24C

Abstract:
1. A shot-peening machine for projecting shots that have been stored in a tank at a first pressure and at a second pressure that is lower than the first pressure by using compressed air from a device for supplying compressed air, the shot-peening machine comprising: a tank for storing the shots; a nozzle for projecting the shots onto a work; a first connecting piping for transporting the compressed air from the device for supplying compressed air to the nozzle; a flow control valve that is located on the first connecting piping; a second connecting piping that branches from the first connecting piping at a point between the flow control valve and the device for supplying compressed air; a flow control valve that is located on the second connecting piping; a third connecting piping that connects an outlet of the tank to the first connecting piping at a point between the flow control valve on the first connecting piping and the nozzle; a valve for controlling an amount of the shots, which valve is located on the third connecting piping; and a control unit for controlling the flow control valve on the first connecting piping, the flow control valve on the second connecting piping, and the valve for controlling an amount of the shots so as to control an amount of the shots to be projected at the first pressure and an amount of the shots to be projected at the second pressure.