The stone pillar refers to the solid or hollow core cylinder used for the decoration of marble and granite. According to the type of stone selected, it can be divided into marble stone pillar and granite stone pillar. Divided into Roman column, plum column, twist column, railing column, engraving column, multi-prism column and monochromatic column and multi-color column; according to the cross-sectional dimension, it can be divided into equal-diameter columns of equal diameter, and the cross-section is not equal. Tapered and drum columns. The difference with the circular arc plate is that the circular arc plate is only used to wrap the decorative cylinder and is part of the outer surface of the cylinder; the stone pillar is the integral cylinder or the splicing cylinder of the solid core or the hollow core.
The first section of ordinary cylindrical processing technology
First, the type of ordinary cylinder
The ordinary cylinder introduced here mainly refers to a cylinder whose straight line and curve are straight lines and curves, but whose cross section is a circle of equal or unequal cross section, such as an equal diameter cylinder, a conical cylinder, two drum cylinders with a diameter smaller than the intermediate diameter and a baluster. Wait.
The diameter and height of the ordinary cylinder mainly depend on the size of the block. The minimum diameter is generally 100mm and the maximum diameter is <=2000mm. The overall height of the cylinder is generally less than 5000mm, but some heights are more than 5000mm. Special cylinder. The standard stone column consists of a column foundation, a cylinder and a column cap.
Second, the processing of ordinary cylinder
(1) Grinding and polishing of the cylinder
The grinding and polishing of the cylinder is generally carried out on a lathe equipped with a pneumatic or hydraulic pressure grinding head. The abrasive installed on the grinding head can be quickly replaced. The abrasive of the grinding and polishing cylinder is usually a ring type, which is in contact with the cylinder and the wire is polished. the way. For example, the Italian OMAC company cylindrical machining lathe grinding and polishing cylinder related schematic.
Since the grinding force during grinding and polishing is much smaller than the cutting resistance during forming and cutting, when the cylinder is mounted and ground, only one center hole can be used at one end of the headboard.
Depending on the material being polished and polished, the gradation of grinding and polishing abrasives is also different. For the processing of granite, five kinds of abrasives with different thicknesses can be used. For the processing of marble, "grinding materials can be used."
Due to the fluctuations in the contours of the products such as balusters, vases, etc., the use of the above-mentioned annular abrasives is difficult to use, so the simple grinding and polishing equipment for manually grinding the shaped revolving bodies is still used, and the products such as the traitors are completed. Polishing.
(2) End cutting and trimming
After the polishing of the cylinder is finished, the two end faces of the cylinder can be cut with a diamond saw blade to make the length dimension reach the finished size requirement. It must be noted that the angle between the cut end face and its axis should be slightly less than 90 degrees, so that the seam can be small and beautiful when installed.
(3) Cleaning, inspection and packaging
The processed cylinders can be packaged after being cleaned, inspected and dried. The packaging of the cylinder is divided into two steps. First, the cylinder is wrapped with a plastic film having a thickness of 0.5 mm, and then fixed in a wooden bar. Be careful to prevent bumping the cylinder when packing and transporting.
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