How did the ancients dig out the thin eye of the ancient embroidery needle?

In ancient times, China's handicrafts were particularly exquisite, and at that time there was no today's mechanized large-scale production, relying on manual production. On TV, we can see all kinds of patterns embroidered on ancient costumes, which are particularly delicate and beautiful, and there are some handkerchiefs with some beautiful patterns on them. Back in ancient times, people began to sew clothes simply, and at that time there were already needles.

Some people may wonder how the ancients dug out the thin eye of the embroidery needle when there were no advanced machines in ancient times? The history teacher tells the truth.

First of all, in ancient times, people used bones to make needles by simple grinding. Due to the relatively slender nature of fish bones, people usually use fish bones to make needles. After making the needle, I will choose a sharp stone or a stone tool and grind a hole in a suitable place, and this hole is the eye of the needle.

Secondly, with the development of productivity, people's production process has also been improved. In the period when people smelted bronze, people smelted and forged copper to make copper bars, and then slapped the end of the needle's eye into a flat shape, and then polished a hole with a sharp stone tool, and then polished the irregular debris around the hole, and then polished the tip of the needle, so that an embroidery needle was roughly done.

In addition, there is another method, that is, after making a thin copper bar, fold it in half, bend, and there will be a hole in the folded place, and then the fine processing will be completed. The hole in the fold is the pinhole.

Eventually, in the era of mass ironware, tools were made for drilling, but this tool was larger. People usually use a somewhat thick iron rod when making needles, and then use a drilling tool to punch holes in this iron rod, then beat it to make it an oval hole, and then put it between two stone tools to polish, and after a long time, it will become very fine.

Another method is to make a hole in the mold, then heat the iron into a soft iron bar, and then pass the iron bar through the hole in the iron ruler and cut it at a suitable length. Then flatten one end and punch the hole while it's still hot and soft, which creates a pinhole. After going through the hole a few more times, it will become more fine, and finally it will cool, sharpen the other end of the needle, and go through some other procedures, and the needle will be more or less ready.

Although the productive forces in ancient times were not developed enough, the technology has become advanced step by step and gradually matured, and our advanced technology today has also been slowly explored from ancient times to the present. In short, the ancient methods of digging needle holes mainly include stone tool grinding holes, copper bars bending into holes, tool drilling, mold casting holes, etc.

In ancient times, people used bones to simply polish to make needles, people usually used fish bones to make needles, and after making needles, they would choose a sharper stone to grind a hole in a suitable place, and this hole was called true yang.

The production of embroidery needles, there are about 20 processes, roughly: steel wire straightening stamping (the needle nose, punched into a round cake shape with a diameter of about 4mm, and then punched out of the needle nostrils, it is worth mentioning that the punch nostrils actually do not have a die (concave die), the punch is the head of a wind steel strip with a cross-section of about 5 3 mm by hand, grinding out on the ordinary grinding wheel. About every 5,000 punches or so, it has to be regrinded.

Punching and trunking, punching, removing excess parts, sharpening (in several parts), deburring, polishing, polishing, inspecting, packing, etc.

In ancient times, humans learned to make and use needles. The earliest needles were made from large fish bones, and the pinholes were probably drilled with a hard pointed stone and grinding belt. When humans learn to use bronze tools, they should beat the cast copper strip into a relatively thin copper wire, then knock one end flat, and then grind the eye of the needle with a sharp stone, and then grind off the excess part around the pinhole by hand, and then grind out the tip of the needle.

Later, with iron, with a drill bit, you can drill a small round hole in the thicker wire, and then gently hit it with a hammer to extend the wire, so that the pinhole becomes longer, and finally use two grinding stones, with a needle in the middle, rubbing the grinding stone, it will really grind very well.

Mild steel wire cold drawn to obtain needles of different thicknesses. Grinding, punching, carburizing, quenching methods to manufacture needles. At that time, the needle manufacturing process was a relatively efficient process. You can refer to "Dream Creek Pen Talk".

The tail hole is actually very simple, after heating, it is flattened, fixed on the mold and smashed with a cold awl, and the cone head has been fixed on the mold.

In fact, there is no need to underestimate ancient handicrafts, many things are just modern and so, but the materials have advanced. There are many ancient civil engineering techniques that are still in use today.