The ram of a hydraulic shaper is connected to a piston. Oil at high pressure is pumped to the cylinder of the hydraulic system. As the oil pushes the piston the ram reciprocates. Hydraulic shapers are high power machines and are used for heavy-duty work. 2. According to the position and travel of the ram: a) Horizontal shaper.
To generate reciprocating motion of ram of shaping machine we having two alternatives: By using a four-bar mechanism ( Cylinder Piston connecting rod and crank ) driven by the motor. This machine is called a mechanical shaping machine. By using a hydraulic DA cylinder. This machine is called a hydraulic shaping machine.
Pneumatic Circuits Hydraulic Circuits Pneumatic Circuits 15. Applications: Automatic lathe Drilling machines Grinding machines Shaping machines Crushers Fork lift trucks Dumpers Truck loaders Bulldozers Hydraulic press 15. Applications: Automatic machines for holding gripping feeding bottling wrapping packaging etc.
The above circuit shows the operation of the hydraulic circuit of the shaping machine when it is in idle condition. A 4 x 3 direction control valve is used in this circuit. 4x3 DCV means DCV has four ports and three stages.
Circuit Diagram for Hydraulic Shaper Machine Generally Meter-out circuit is used for hydraulic shaper machine. Meter out circuit is as shown in fig below. Fig. 1: Meter out circuit In fig (a) position the variable flow control valve with built in check valve is placed in return line. In this circuit speed control
Fig 4 : Hydraulic Circuit for Shaper Advantages of Hydraulic drive _Lower first cost _Simpler in operation _ Does not make any noise and operates very quietly. _ Ability to stall against an obstruction without damage to the tool. _ Ability to change length and position of stroke or speed while the machine is running.
tainer. This is the principle used to extend the ram on a hydraulic cylinder (Fig 3) Although hydraulic circuit layouts may vary signifi cantly in different applications many of the compo nents are similar in design or function. The princi ple behind most hydraulic systems is similar to that of the basic hydraulic jack. Oil from the .