(1) Manual cutting
Cutting is a technical job, so the requirements for the operator are high, requiring the worker to be familiar with and understand the production process, process operations and technical requirements of the product.
1) Preparation for cutting
Tools: scribing knife, glass table top, ruler, measuring tape, scissors, pencil, magic stone.
Check the leather plate: check whether the leather plate is complete, check whether it is defective, whether the assembly parts parts are clearly marked, and clarify the quality requirements of the product for the parts leather.
Sharpen the knife: make the knife sharp so that it does not leave uneven marks on the edges of the leather when cutting.
2) Cutting operations
Select leather: spread the leather for the manufacture of leather gloves on the table, check the quality of the leather and the part where the injury is located and determine whether it can be used, according to the quality of the grade.
Place leather: when placing leather, generally place the main leather first, and then place the small leather and secondary parts material.
Mark leather: after the leather has been selected and validated, the single leather is laid out flat on the cutting table and checked to see if the residue on the leather surface can be utilised and dodged.
Cutting leather: there are two general methods of cutting material, one is to cut directly with scissors and the other is to cut with a scoring knife.
When cutting with a scoring knife, first discharge the leather board and then use the right hand to hold the knife, cut the corner of the knife into the leather surface, so that the knife is pushed along the edge of the leather board from back to front or from right to left, and cut the leather along the edge of the leather board. Knife mouth in the leather surface to promote, the knife mouth and the leather surface 25 ° ~ 30 ° angle, this leather, the knife mouth forward to push can make full use of the knife angle sharpness and reduce resistance, the knife surface and the leather surface into 90 ° right angle, this leather cut under the leather side potential straight.
When cutting with scissors, pay attention to the articulation between the knife and the cutter, so that there are no traces of jointed knives at the edge of the leather.
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, require the full use of edge material; first cut the surface fabric, after cutting the inner material, to make full use of cutting material, and strive to reduce the loss. In addition, when cutting, should also pay attention to the colour with and pattern with, the same product on the combination of parts of the colour to be basically the same, pattern inlay with to coordinate natural.
Pay attention to the direction of the material elasticity should not be used in the direction of load-bearing. In doing sheepskin leather gloves material handbag, sometimes in the sheepskin flesh surface compound layer of cloth base, can reduce the extension of the fabric elasticity to increase the utilization rate, but also can increase the use of sheepskin strength.
(2) Machine cutting
Machine cutting is much simpler than manual cutting, machine cutting is mainly used to form the knife mouth die, with the pressure of the cutting machine to separate the skin, machine cutting is suitable for small areas of parts and large quantities. The advantage is that the parts cut are neat and tidy, with high production efficiency and low labour intensity. However, cutting costs are high and should be used as far as possible for mass production or the production of general purpose parts. When material, workers are required to be technically proficient, to understand the quality requirements of the parts in full detail, and to be familiar with the production process of luggage products.
1）Cutting preparation: understand the requirements of each part of the product, check whether the knife mould meets the requirements, whether the case board is of uniform thickness and free from unevenness and rupture, check the machine operation and make the corresponding adjustments.
(2) Punching: before operation, spread the leather, put the knife die in the right place on the leather, positioning and pressing the connecting rod when the pressure plate down to complete a punching, punching and cutting according to the shape of the product parts to be closely arranged, mutual set of cuts, leather gloves cutting attention to the reasonable use of the residue, colour matching, pattern matching and the choice of silk strands, in addition, when punching and cutting first cut the main parts, after cutting the secondary The main parts are cut first, followed by the secondary parts, and the fabric is cut first, followed by the lining.