flip flop cost calculation Basics count material
1. Operators feed purpose:
Without changing the structure of the premise of the flip flop, as far as possible the use of materials.
2. Selected materials Standard Code count:
When the material is considered standard code based on the full set of all kinds of flip flop type size, and then take the middle code to calculate material.
Under normal circumstances a full-size all kinds of flip flop type is as follows:
Men: 7 # ~ 12 # Women's flip flop: 5 # to 11 # Toddler flip flop: 4 # ~ 10 # small children's flip flop: 11 # ~ 6 #
Based on the above information can be obtained: When considered material, men's intermediate code is 10 #; flip flop of intermediate code 8 #; children flip flop intermediate code 8 #; where small children's flip flop when you count the material should be considered in two, small pieces count # 1, a large segment count 4 #
3. Grading cardboard:
Cardboard number inconsistent play samples with the sample chamber of cardboard with us and count the time, in a full-board level has not put out before, and we can put to us and count the desired intermediate code above in the copier. Grading method is to enlarge one yard per cardboard, then we magnification on the copier 104%
4. Materials and equipped with double cutting to:
To consider the structure and direction of the flip flop, as well as flip flop with dual color and other issues considered material.
When the operator does not consider its leather extending direction will only consider its color and with double the problem, from the tail when counting count leather, toe to draw in a better position. Usually leather leather more middle position better, so pay attention when considered material intermediate symmetry around with double knife
When the operator PU and cloth, pay attention to the extending direction of the shoe press to row knife, does not extend around the operator of flip flop, sandals count does not extend around, except in exceptional circumstances, extend the length direction of the material is not extended, the width of the extension.
5. Take sample flip flop cardboard check:
Operators should be preceded find material sample flip flop, determined for each part of the board, so as not to miss or get wrong. Also before the count amount, we must ask the name and specifications of materials and processing methods of various parts of the shoe (mainly fitting costs). Different materials to be counted separately, with different color material must also be considered separately.
6. Operators material:
A. Leather algorithm: Take a standard number range of leather foot, write down a few feet of this leather, cardboard will be calculated in accordance with a positive and negative way double row full of this leather, with the skins feet divided by material of the double row number, you can obtain the amount of X feet / Dual
B. PU or cloth algorithm:
Normal algorithms: the width divided by the width of a pair of material the material, monolith X, then use a code length (91.44cm) divided by the length of the material (to be retained decimals), the results obtained Y, that was X * Y = Z double / code
Special algorithms:
①. Package elastic bag material amount calculation method
[(Width -2 ") × 2.54 ÷ (cord width × 2 + 3) ÷ 1.8 × 91.4] ÷ dosage
Example: 54 "× 0.8MM black sheep grain PU package 5MM black knit elastic band + Twisted reinforcing band finished 6MM (amount 12CM / double) [(54" -2 ") × 2.54 ÷ (0.5 × 2 + 3) ÷ 1.8 × 91.4] ÷ 12 = 429.9 双 / Y
Note: The elasticity formula 1.8 for the elastic band.
②. Pumping of the calculation method (straight draw oblique pumping)
[(Width -2 ") × 2.54 ÷ (pumping width × 2 + 2) × 91.4] ÷ dosage
Example: 54 "× 0.8MM black sheep grain PU to smoke 7MM finished article, within plus 18P cloth (60CM / double)
[(54 "-2") × 2.54 ÷ (0.7 × 2 + 2) × 91.4] ÷ 60 = 125.7 双 / Y
Oblique pumping pumping with straight, just multiplied by oblique pumping utilization of 95%.
③. Calculation method bias cut strips
[(Width -2 ") × 2.54 ÷ strip cut to the utilization width × × 91.4] ÷ dosage
Example: 54 "× 0.8MM black sheep grain PU miter 14MM finished article (60CM / double)
[(54 "-2") × 2.54 ÷ 1.4 × 91.4] ÷ 60 = 136.5 双 / Y
Note: Usage straight miter cut 100% 90% 95% crosscutting
④. Leather calculation method of the draw
[(Bar width × 2 + 2) × amount] ÷ 929CM2
Example: 0.6MM-08MM 5MM black sheep of the pumping finished article, Neijia Ni hoses (60CM / double)
[(5 × 2 + 2) ÷ 10 × 60] ÷ 929CM = 0.0775SF / bis
. ⑤ whole material algorithm:
When considered material, some material is not infinite, as a United States-resistant panels, one in the floor, etc., its algorithm and PU and cloth normal algorithm only difference is when you take the data, length and width must be an integer, and there can also regardless of its direction, as far as possible the use of materials.
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