"Ink Dou" can ward off evil spirits. Ink fountains are commonly used in surveying and house construction.
The ink fountain is a very common tool in the traditional Chinese woodworking industry. It has three uses: to make long straight lines (also indispensable in the mud, stone, tile and other industries); One end of the ink line is fixed, pull out the ink line and tighten it to the required position, then lift the middle section and pop it down. The ink tank stores ink and can be used with ink sticks and rulers to draw short straight lines or make marks; draw vertical lines (used as lead pendants).
Ink tank: a round bucket at the front of the ink fountain. It was made of bamboo in the early days. There are small holes in the front and back, and the ink line passes through it. The ink tank is filled with silk, cotton, sponge and other storage materials. Ink material (can be stored for a short time after pouring ink).
The principle of the ink fountain
The principle of the ink fountain is that the ink thread is wound around a movable wheel. After the ink thread is wound around the ink fountain wheel, the thread at the end is tied to a fixed needle. When in use, pull the fixed needle, and with the rotation of the movable wheel, the drawn ink line is dipped in ink through the ink fountain, and the ink line is straightened to pop up the line to be processed on the wood.
Ink fountains are mostly used for cutting wood. For carpenters engaged in furniture making, the ink fountains can be made smaller, while for carpenters engaged in building wooden structures, the ink fountains can be made larger. On the one hand, the ink fountain can be used as a stretch line for sawn logs, or for straightening the edges of wooden boards. It can also be used for numbering stretch lines for material selection and paneling, and other aspects. For example, when marking wooden boards or playing lines, the ink fountain is sometimes used as a vertical line to measure whether the line is vertical and flat.