Straight Knife Cutter
Olfa, Martor, Milling and other company manufacture straight knife cutting machine. Butterfly knives, millingknife, ontario knives, tops knives and cool knives are available in market. In the garment/ apparel industries, straight knife cutting machine is used widely. This machine is used to cut woven and knit fabrics. Operator can easily to use messer cutting systems. The cutting production sheet is used to make sure that the raw material and all the things have arrived to the cutting section and everything is ready before the laying starts. If the fabric has any defects or faults as inspected by the store, then it is mentioned in this sheet and the cutting manager can make a point of taking such things into measure. The data provided by this sheet also renders information about the marker consumption and also the interlining status, which are other important things that are used in the department apart from the fabric.
Parts of Straight Knife Cutter:
- Electric motor.
- Power plug.
- Switch.
- Grease inlet.
- Sharpening device.
- Handle.
- Stand.
- Knife.
- Knife Guard.
- Pressure foot.
- Throat plate.
- Base plate.
- Rollers.
Specifications of Straight Knives :
| Specifications Name | Specifications Value |
| Product Category | Cutting |
| Machine Category | Knife Cutting Machine |
| Product Name | Straight Knife Cutting Machine |
| Product Model | According to Manufacturer |
| Product Class | New |
| Origin | Made in China |
| Brand/ Manufacturer | Butterfly knives |
| Agent in Bangladesh | No/Yes |
| Power | 110v/220v, Horsepower: .65h.p. |
| Temperature | Normal |
| Certification | SGS/Others |
| Production Capacity | NA |
| Speed | 3,400 rpm (single speed) |
| Stroke | 1-1/2” |
| Blade size | 8” |
| Sharpening belts | Medium |
| Medium | Manual |
| Dimensions | 8” x 12” x 20.5” |
| Weight | 32 lbs |
| Description |
Features of Straight Knives:
Ontario knives could be used to cut higher depth of fabric.
Advantages of Straight Knives:
- Ontario knives can be moved easily by rollers.
- Butterfly knives are easy to install,
- Butterfly knives are heavy
- Straight Knife Cutting Machine is cheaper than Round Knife Cutter Machine
- Milling is comparatively cheap easier to operate
- Milling, automatic Grinding could be done during cutting.
- Could be cut at any angle and could be cut fabric at more curved line than the round knife of butterfly knives
Disadvantages of Straight Knife Cutter:
- Milling cool knives deflection is high in risk, when lay height is too high
- The Risk of milling cool knives are high for physical damage of operator
- Costly
Industrial Engineering in Cutting Department:
The number of operators working in the department is 35 for Autogarment and 35 for Garmentspedia.14 operators are for spreading and cutting, 17 for relaying and 4 for panel checking. These numbers are the same in both the sections, namely, Autogarment and Garmentspedia. Apart from this, 9 people are used for the purpose of numbering and bundling. The spreading and cutting requires skilled operator, whereas the numbering operator can be unskilled as well.
The machines employed for the purpose of spreading and cutting are- Round Knife, Band Knife, Spreading Tables etc.
| Machine | Number | |
| Band Knife | 3 (1per unit) | |
| Straight Knife | 15 (5 per unit) | |
| Round Knife | 3 (1 per unit) | |
| Drill | 2 | |
| Tables | 9 (4 spread/cut) |
Cutting Plan:
The cutting plan sheet is filled with the details of the cutting and the ratio and also the number of lays based on these ratios. The cutting plan is made by the cutting department and a copy of the same is provided to the CAD department so that they can make the marker accordingly.
Conclusion:
Although the milling cool knives other knives has some limitation, this machine is very popular in the apparel industries to cut both woven and knit fabric. Some machine are zero tolerance knives. A report is prepared in this format, which includes the data regarding the progress of the cutting of a particular order. This includes the data like the number of pieces in the order, the number of pieces cut and the balance number of pieces, all in the required ratio and the given color quantity. The report also includes the interlining details and the cutting details.
Md. Ferdus Alam, B.Sc. in Textile Engineering, Southeast University, Cell # 1723300700, Email: ferdus.j@gmail.com
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