This article does not cover other wood or other lobular rosewood products. Although there may be some differences in the details of each wood processing, the general process does not change much. In addition, while describing the process of hand string processing, I also wrote some information about this industry, the content is quite mixed, I hope you don't mind.
The first step: selection of materials
In the hand-made processing industry, especially the processing of lobular rosewood, the most important thing is to select materials. The above picture shows the wood for processing ordinary hand strings and the wood of the tumor. I believe everyone knows this sentence: Ten Tan and Nine. If you don't know how to choose when buying wood, just look at the beautiful appearance and buy it. It is very likely to pull it home and open it to see if it is empty.
Therefore, when buying wood, it is necessary to calculate whether the wood is available according to the volume, weight, density, etc. of the wood. A cubic wood weight will have a rough weight range below which it will be available, which is very relevant to how many bracelets the last piece of wood can produce.
Step 2: Slice
According to the size of the beads to be sliced, make a 2.1 slice of 2.1, which is usually the size of the bead plus one. The above picture is a tumor material, but it is not an ordinary material, so it is normal to have a cockroach or the like. See the black mark on the edge, that is, the crack, more than 90% of the rosewood is edge crack. Some cracks are longer, so the wasted material can be imagined.
The third step: paste the circle or draw a circle
In fact, according to the shape of each large piece of wood and the appearance of empty, cracked, white skin, etc., one piece of the cut round paper is attached to the wood one by one. The requirement of the patch is to avoid the top as much as possible. The ç‘•ç–µ (or circle) is as far as possible to put as many pieces of paper as possible on a piece of wood. Of course, the premise is to ensure the quality and leave a certain distance between each piece. The spacing is for the next step. The space left by the saw blade when sawing the blank of each bead.
Step 4: Saw the large pieces of wood into a small column
In this step, each workshop has its own different methods, the mainstream useful wire saw, the rotary cutter with a circular knife edge and the steel tube with a jagged head. Each processing method has its own advantages and disadvantages. Wire saws are generally used for large-scale machining because the saw blades of the wire saw are the thinnest relative to other methods, generally only 1.5 thick, and the same weight of wood is also the highest. The circular cutter has a similar principle to the rotary cutter and the steel tube. Both of them are screwed down a wooden column or a ball.
The advantage of the cutter is that it can directly unscrew a ball, eliminating the need to grind or cut the cylinder into a cylinder. The steel pipe is a non-conventional cylinder that is unscrewed and convenient for the next step. But these two methods will have more material waste because the tools will have their own thickness. But the operation is simple.
Step 5: Punch
Of course, the strings must be strung together, and of course there must be holes in the strings. This step is to punch holes. The bracelets I produce here are roughly divided into 2.0 1.8 1.5 0.8 sizes. The rest of the sizes need to be customized. Among them, the 2.0 0.8 production is the largest. The 2.0 bracelets are now made of 1.8mm and 1.5mm. of. In general, the 2.0 bracelets are two ropes. The two ropes of 1.8mm holes will not get stuck, but the 1.5mm will be more difficult, but now the market is emphasizing the small holes, so the aperture will be produced according to market or customer requirements. Beads of different sizes.
In fact, this step of punching is quite simple. It is straightforward to drill. However, it should be noted that it is not necessary to drill through one time. It is necessary to drill half of each side. If it is drilled once, it is likely to be on the other side and cannot be kept in the center. If the two sides are drilled separately, this will not happen. As long as the middle can pass, it will almost not be seen. The rope can pass. The picture in the fourth step above is the small column that has been punched.
Step 6: Out of the ball
This step is also an important step and has a great impact on the final rate. The first is to replace the size of the beads to be processed with a different size and a circular arc. Then, the small cylindrical column is fixed on the device horizontally, and the machine is started to rotate the small cylindrical column at a certain speed, and the rotary knife next to it rotates, and the cylindrical column is cut into round beads. It should be noted that in the process of cutting, since the bead or the rotary knife is telling the rotation, the contact between the two will inevitably generate heat. At this time, it is necessary to have a thin tube dripping the water droplets thereon, and it is not necessary to directly rush. The water rushed up.
The main role of this move is twofold, one is to reduce the temperature of the beads, the other is because the high temperature of the beads will evaporate the water on the surface of the wood, and the water can be added to the water lost by the beads, so that the surface of the beads will not be The lack of water inside the water, causing cracks in the density of the inside and outside of the wooden beads.
Step 7: Make a three-way Buddha head
This step is very simple, and the main process of making beads is almost at the end. This step is to select the 12 beads to put the finished beads on the bench drill and drill the third hole, the three links ok. Selecting a tee from a pile of beads can select some slightly cracked, which can also increase the yield and does not affect the quality of the bracelet. Of course, if you are a big one, you can't force a three-way. This will only make the quality of the beads you produce worse, even if you sell them. The Buddha's head is also very simple. It is enough to choose some scraps of the same material.
Step 8: Polishing
This step of grinding is relatively simple, according to the number of sandpaper from low to high grinding, from 180 or 200-600-800 (-1000-3000) specific grinding according to the needs of customers and the market, generally It is 600 or 3000. The reason why it is polished to 600 mesh is because the Venus and the cow hair are the most obvious when the 600 is aimed, and the player will like it.
When it is polished to 2000, the appearance is very beautiful, that is, the best selling, this is the consumer class, 600 mesh is professional. In addition, grinding to 2000 is not easy to produce pulp than 600 mesh, the reason is that the finer the grinding, the more grease will be deposited in the column.
Finally, the ball is finished.
Related reading: The origin of lobular rosewood Nepal rosewood
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