(1)Manual cutting
Cutting is a relatively high technical type of work, so the requirements for the operator are also high, requiring workers to be familiar with and understand the production process, process operation and technical requirements of the product.
①Preparation for cutting:
Tools:There are scribing knife, glass table top, ruler measuring tape, scissors pencil, grinding stone.
Check the sample: check whether the sample is complete, whether there are defects, assembly parts parts are clearly marked, clear product quality requirements for parts leather.
Sharpen the knife: so that the knife edge is sharp and will not leave uneven marks on the edge of the leather when cutting.
②Cutting operation:
Sample selection: Spread the leather on the table, check the quality of the leather, the part where the injury is located and whether it can be used, etc., and grade it according to the quality.
Arrangement: when arranging the material, generally first arrange the fan, wall, plug, cover and other major parts, and then arrange the small material and secondary parts of the material.
Draw sample: after the skin is selected and validated, the single skin is laid flat on the table, the required sample is laid out, and the skin surface is checked to see if the residue can be used and avoided.
Cutting sample:There are two general methods of cutting material, one is to cut with scissors, the other is to cut with a scoring knife.
In the knife cutting method, first of all, the sample will be discharged, with the right hand to hold the knife, the corner of the knife cut into the leather surface, so that the knife along the edge of the sample from the back to push forward or from right to left, along the edge of the sample to cut the leather. When the knife is pushed on the leather surface, the mouth and the leather surface. Into 25 ° ~ 30 ° angle. In this way, the knife mouth forward to make full use of the sharpness of the knife angle and reduce resistance, the knife surface and the leather surface into 90 ° right angle, so that the knife mouth does not "eat" the sample, cut the edge of the leather potential straight. When cutting with scissors, pay attention to the interface between the knife and the knife, do not appear in the leather edge of the knife traces.
Cutting material to cut the main material first, after cutting auxiliary materials, first cut cover material, after cutting the bottom material, first cut the area of large, after cutting the area of small, to. Make full use of the edges and corners; cut the surface fabric first, then cut the material inside, to make full use of, and strive to reduce the loss. In addition, when cutting materials should also pay attention to the color and pattern with the same product on the combination of parts and components color to be basically the same, pattern mosaic with to coordinate natural.
(2) Machine cutting
Machine cutting is much simpler than manual cutting, machine cutting is mainly used to form the knife mouth mold, with the pressure of the cutting machine to separate the skin. Machine cutting is suitable for small-area parts and mass production, the advantage is that the cut parts rule neat, high production efficiency, low labor intensity. However, the cutting cost is high and should be used as much as possible for mass production or production of common parts. Cutting material, requiring skilled workers, the quality requirements of parts to understand in full detail, familiar with the production process of luggage products.
①Cutting preparation: to understand the requirements of each part of the product, check whether the knife mold meets the requirements, whether the case board is uniform in thickness, no unevenness and rupture, etc., check the operation of the machine and adjust.
② punching and cutting: the operation before the flat spread leather, the knife die on the leather at the right location, positioning, snap the linkage, the pressure plate down punching, complete a punching and cutting. Punching according to the shape of the product parts, closely arranged, mutual cutting, pay attention to the reasonable use of the disabled parts, color matching, pattern matching and the choice of silk wool. In addition, when punching and cutting, first cut the main parts, then cut the secondary parts, first cut the fabric, then cut the lining.
