Shoe face test methods and test criteria
First, the test method:
1-car inspector strict inspection standards reference letters like flip flop, positioned at the end of each step of sewing, needle for each vehicle tested uppers.
2, testing the entire double uppers with letters like the same overall shoe production process, with dual color, grain thickness, width annex, thickness, flatness is consistent
3, testing whether folding flat knock, knocking prison, whether smoother curves, straight lines if frank, take place at whether the formation, inside lining is smooth, place, whether or not in place because the cloth imprinted dough obvious cause, if there is not a bye firmly affixed phenomenon, whether the debris, glue width is moderate, typically 10mm
4, whether Lippi paste flat service, correct, consistent, and maintain its basic due Camber.
5, take place whether the point of the line remains flat service without thoroughly marks.
6, testing the upper line is clear, whether smoother curves, straight lines requires frank, pin code must be uniform and smooth
7, test pitch, whether the margin requirements, the availability of jumpers, heavy needle, off-line, turning line, loose wire, heavy wire, open line, sutures and other adverse circumstances deviant, wiring position, the standard is reasonable .
8, seat belt, lining is in place, if appropriate notches, with or without too deep, exposed other phenomena, combination buckle installation paste is solid, the material fastness when in doubt, pull the hand to make the necessary measurements.
9, take place when the inspection uppers, code number is correct, Num typing is clear, correct position, sort code number, to avoid mixing the wrong code or the number of bales.
10, if the sample have some special requirements, should give priority inspection and control, strict checks.
11, test out the non-conforming product make identification and records, on the spot rework. Reworked again after passing inspection before release (including the mantissa and repair broken package)
12, abnormal quality issues found during the inspection of the total inspection report promptly to calculate the date of rework, scrap rate, and paid a daily record of nonconforming product so that timely matter unqualified statistics, analysis and improvement
13 monthly statistical data related to cross a comprehensive quality management center consolidation and analysis.
Second, the test standard (depending on the material and sealing requirements of a particular kind)
1, Lippi help foot from the edge of the wide 6-7mm, inner lining Bubilipi shrink 2mm, stickers lining position accurately, securely, from doing upper edge 5mm, from help foot 5mm, take place within a shrink 1-2
2, cold bonding temperature: 70-80 ℃
Blanching: 100-110 ℃
3, setting time: 10-15s
Temperature of 80-100 ℃
4. flip flop pitch: 4.5 a 5-pin / cm (1 English / I2-13 pin)
Margins:
1.0-1.2mm
Universal: one inch / 6-7 needle
5, men pitch: 1cm / 4-4.5 needle (1 inch / 11-12 pin)
Margins: 1.2 a 1.5mm
Universal: one inch / 6-7 needle
6, inverted pin back needle 23 needle back to the original pinhole must ensure that no off-line.
7, the entire two upper parts of the force, conspicuous parts must not have wiring phenomenon.
8, can not have jumpers, turn thread, loose lines, broken heavy line, open line, sutures, deviant, pinhole, fried mouth phenomenon
9, from the Lippi edge printing standard 10mm (Note: in order to request as a standard), usually within the waist (special flip flop for separately) legible, correct, must have English code groups.
10, Flap width 4-4.5mm, seat belt face from side 4mm, 20mm extended seat belt to help foot sandals
11, scissors flower density, depth appropriate, do not reveal flowers knife, folding bit depth is generally from 2m, flowers knife spacing is generally 1-2m.
12, from car repair Lippi line position 0.6m, can not have wavy and repair broken phenomenon.
