Straight Knife Cutting Machine

 Widely used cutting machine which cut fabrics in bulk with high precision.

Features:

§  Cutting knife is straight in shape.

                             Blade length= 10’’-13”

                             Blade width= (1 ½ -3) cm.

                             Blade thickness= ½ mm.

§  Knife is driven by electric power.

§  Grinding wheel is present to sharp the knife during cutting.

§  The machine consists of base plate, electric motor, handle, knife, knife guard, stand, roller wheel. 

§  Handle for the cutter to direct the blade.

§  Most commonly (99%) used in the RMG industry of Bangladesh.

Machine description:

Components of a straight knife machine are-

–       An electric motor: to run the machine.

–       Base plate: usually in rollers for easy movement.

–       Handle: to direct the blade.

–       Knife: moves by reciprocating motion.

–       Knife guard: for safety.

–       Grinding wheel: to sharp the knife during cutting

–       Stand: to hold the whole machine.

–       Roller wheel: to move the machine over cutting table easily.

Advantages:

•       High production cutting machine.
•       Possible to cut fabric directly.
•       Possible to cut larger height of the fabric lay.
•       Both sharp corners and heavy curves could be cut.
•       Blade could be sharpen by attaching grinding wheel during        cutting.
•       High cutting speed.
•               Comparatively cheap.

Disadvantages:

• Blade deflection occurs, so in some cases fabric cut pieces can be found faulty.
• If depth of the fabric is higher, the possibility of deflection of the blade is More.
• The machine is not ergonomic; Intensity of the accident is comparatively higher.