PNEUMATIC SHEET BENDING MACHINE.

The Automation of Metal Pneumatic Sheet Bending Machine Mechanical Project describes the bending machine which is an essential tool of a machine used to shop sheet metal work. This is generally made for the bending of V-die. The bend is created by making use of punch that applies much more force on the die over the work clamped. The bending machine is created in such a manner that these functions automatically. Automation is obtained by making use of electro-pneumatic systems.

It possesses large resistance for the corrosion than various other metals and obligated to protect deliberately with the tenacious and thin film of oxide that produces on its surface.

WORKING PRINCIPLE PNEUMATIC SHEET BENDING MACHINE

The pneumatic sheet bending machine includes a table with support arms to hold the sheet, stops or guides to secure the sheet, upper and lower straight-edge blades, a gauging device to precise position the sheet. The table also includes the two-way directional valve. The two-way directional valve is connected to the compressor. The compressor has a piston for a movable member. The piston is connected to a crankshaft, which is in turn connected to a prime mover (electric motor, internal combustion engine). 

allow air to enter and exit the chamber. When the compressor is switched ON, the compressed air flows to the inlet of the pneumatic cylinder. The sheet is placed between the upper and the lower blade. The lower blade remains stationary while the upper blade is forced.

COMPONENT USED

PNEUMATIC CYLINDER 

Pneumatic cylinders (sometimes known as air cylinders) are mechanical devices that use the power of compressed gas to produce a force in a reciprocating linear motion. In the pneumatic cylinder, compressed air is used as a working fluid and converts it into kinetic energy as the air expands in an attempt to reach atmospheric pressure. This air expansion forces a piston to move in the desired direction.

DIRECTION CONTROL VALUE

The directional valve is one of the important parts of the pneumatic system. Commonly known as DCV, this valve is used to control the direction of airflow in the pneumatic system. The directional valve does this by changing the position of its internal movable parts. This valve was selected for speedy operation and to reduce the manual effort and also for the modification of the machine into an automatic machine by means of using a solenoid valve.

BENDING PUNCH AND DIE

To perform bending operation, the bending punch and ideas to replace with cutter and then after we can perform bending operation. The bending angle is 90 and as per the requirement in the future, we can change the angle of bending.

PNEUMATIC COMPRESSOR

An air compressor is a device that converts power(using an electric motor, diesel or gasoline engine, etc.)into potential energy stored in pressurized air(i.e., compressed air). By one of several methods, an air compressor forces more and more air into a storage tank, increasing the pressure. When tank pressure reaches its upper limit the air compressor shuts off. The compressed air, then, is held in the tank until called into use

ADVANTAGES OF PNEUMATIC SHEET BENDING MACHINE

• The pneumatic is more efficient in the technical field.
• A quick response is achieved.
• Easy maintenance and repair. Low investing cost.
• 5 Continuous operation is possible without stopping.
• Compact size and less floor space are used.
• All movements are pneumatically operated.
• The optional solution of operation is the Electrical control panel.
• Ragged construction to suit in highly acidic atmosphere & high temperature.
• All pneumatic actuators are S.S. to suit a corrosive atmosphere.
• Air is available everywhere

DISADVANTAGES OF PNEUMATIC SHEET BENDING MACHINE

• Silencer must be used while compressing the air 
• High torque cannot be obtained
• Load-carrying capacity is low

APPLICATIONS

• This machine is very useful for small scale industries
• These machines used to cut the rolled sheet metal
• All industrial application

FUTURE SCOPE

Since old age, man is always trying to gain more and more luxurious. Man is always trying to develop more and more modified techniques by increasing the aesthetic look and economic consideration. Hence there is always more and more scope.

CONCLUSION;-

Now we know that Pneumatic cutting and bending machines are very cheap compared to hydraulic cutting and bending machines. The range of the cutting and bending thickness can be increased by

arranging a high-pressure compressor and installing more hardened blades. This machine is advantageous to small sheet metal cutting and bending industries as they cannot afford the expensive hydraulic

cutting and bending machine.

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