Fabric cutting Machine

Cung Method & Knife Prepared By : Mazadul Hasan sheshir ID: 2010000400008 13 th Batch (session 2009-2013) Department : Wet Processing Technology Email: mazadulhasan@yahoo.com Blog : www. Textilelab.blogspot.com (visit) Southeast University Department Of Textile Engineering I/A 251,252 Tejgaon Dhaka Bangladesh Prepared By : Total Texle Process at a Glance Fabric Cutting     • Object:   • Requirements Of Cutting:           Types of Cutting Method  Fully Manual    Manually Operated Power Knife        !  "  !  Computerized Methods Of Fabric Cutting    #  $%   Hand Operated Scissor Features:  &'  (  )*    "'  (' Straight Knife Features:  + ,) - .) / 01 213 4$  1*  3  +*    -0/0  **' Straight Knife Working Principal:  Two kind of powers are required to operate a Straight Knife  5*  6*  The motor power needed is determined by      *    Greater power of the motor, greater blade movement to cut the fabric Straight Knife Advantage:         Disadvantage:    !   Di%erent Types Of Knife  1"  1+  Wave knife Straight knife Notch knife [...]... Very fast cutting operation Can be cut in a proper line as the cutting head is controlled by computer As the fabric is cut by ray off high so that no need of sharpening operation Disadvantage: Not suitable for cutting of multi-layer of fabric For thermoplastic fabric the cutting edge should be fused Very expensive cutting method Cutting By Water Jet Features: This system, thin jet of water is... which can easily cut the fabric A catcher in the bottom of fabric lays & it used with the same speed & the same direction of water jet Cutting By Water Jet Advantage: Higher cutting speed There is no need of knife to cut fabric so that no need of sharpening operations Better to cut hard material Disadvantage: Not suitable for higher depth of lay of fabric Cutting edge of fabric is wetted by water... pocket & dart For loose woven fabric it can not make the hole permanently for long time Computer Controlled Knife Cutting Features: This method provide the most accurate possible cutting at high speed Marker is not necessary to put over the fabric lays during cutting Cutting knife is oval shaped & very hard Sharpness is also high & blade is made of stainless steel Cutting knife itself moves according... indicated Cutting By Laser Beam Features: This method, fabric is cut by a ray of light in a very fine spot using a laser Radius of spot of light is 0.25 mm & high powerful When the ray falls on a material, it generates heat on the material & cutting is done by vaporization Fabric is cut at a speed of 13 meter per min Cutting head is controlled by computer Cutting By Laser Beam Advantage: Very fast cutting. .. wetted by water Sometimes water spot should be seen in the fabric Need of filtering & deionization of water Need of controlling the sound of jet Cutting By Plasma Torch Features: This system, fabric are cut by a thin through the nozzle which is made by Argon gas One or more fabric plies can be cut Most useful for cutting single ply of fabric Fabrics are cut by placing in a table, the surface (85%)... at any shape or any angle Comparatively less time required Best method of cutting knitted fabric Disadvantage: Fabric loss is high due to the need of block of fabric lay High labor cost To change the style quickly is impossible Difficult to cut large components of dress Notcher Cutting M/C Features: Special type of cutting m/c & used in special case Used to cut notch in the edge of some components... single ply cutting as well as multi-layers (say 20-30 layers) Suitable for small scale cutting Suitable gentle curve cutting Easy to operate Useful for cutting layer parts of a garments Disadvantage: Not suitable for cutting very curve lines in higher no of lays Not suitable for higher production Possibility of accident is high Difficult to cut small component Needs skilled operator Die Cutting. .. Used more in men’s wear than ladies wear Intensively risk of accident is low Possible to cut 90˚ angle of the fabric Disadvantage: Work load is high as m/c is stationary & fabric is moveable Not suitable for cutting large amount of garments parts Not possible to cut fabric directly Fabric wastage is high Power loss is high Round Knife Element of round knife: Base plate & Electric motor Handle... two types of die cuttings are available namely: Presses & Clickers Main parts of all die cutting m/c are Blade, Ram Head, Die, Motor & Operating System of Ram Die is made by metallic strip Most useful to cut sharp & small parts Die Cutting Working Principal: Die is prepared with metal strip according to the shape of pattern Die press generally has a cutting die just penetrates the cutting pad in... cutting pad in order that the fibers of the lowest ply are completely separated For die cutting, the spreader spreads a lay to the required placement of dies The spread is cut into sections to allow transport to the cutting pad The gap between two dies 2-3 mm are placed when die is taken to cut fabric lay Die Cutting Advantage: Extensively used to cut sharp corners of small parts of dress accurately . Engineering I/A 251,252 Tejgaon Dhaka Bangladesh Prepared By : Total Texle Process at a Glance Fabric Cutting     • Object:   • Requirements. Cutting     • Object:   • Requirements Of Cutting:           Types of Cutting Method  Fully Manual    Manually. Knife        !  "  !  Computerized Methods Of Fabric Cutting    #  $%   Hand