Shandong screen dedicated drilling, Chen Hua machinery (certified), screen-specific drill by Chen Hua Machinery Co., Ltd. Qingdao. Qingdao Hua Chen Machinery Co., Ltd. (www.qdchenhua.com) is specialized in the "press, ports bollard, adjustable multi-axis tapping drilling machine, CNC multi-axis drilling, milling goal" of the enterprise, the company adhering to the "integrity management , hard service "concept, to provide you with the highest quality products and services. Welcome to inquire! Contact: Yuan Xi Chuan. Ancient lathe pulley, lever arch "bow lathe" Back in ancient Egyptian times, people have invented a wood cutting tools for turning around its central axis during rotation technique. At first, people are standing with two brackets by turning the timber to be set up by the branches stretch the rope wound on wood, by hand or foot pull the rope to rotate screen dedicated drilling wood and hand tools and cutting. This ancient method evolved, evolved into two or three laps around the pulley rope screens dedicated direct drilling, rope holder in elastic rod bowed, pushing the bow back and forth in order to make the process for turning the rotating object, which is the "bow lathe." Medieval crankshaft, flywheel drive "bicycle bed" to the Middle Ages, it was designed a foot pedal rotation of the crankshaft and flywheel drive, then drive to the spindle to rotate the "bicycle bed." Mid-16th century, the French designer has a design called Besson count a CNC machine tool the tool bar with screws screw with the car sliding lathe, unfortunately, does not promote the use of such a lathe. In the process of the invention planer, many things tend to be complementary, interlocking: In order to manufacture the steam engine, boring need help; after the invention of the steam engine made from the process requirements and began calling the goal planer. We can say that it is the invention of the steam engine, resulting in a "Machine Tools" from the boring machine, lathe planer design to development. In fact, the planer is a kind of metal plane "plane." Processing large plane planer (1839) as a result of the processing needs of the steam engine plane seat, from the early 19th century, many technicians began research in this area, including Richard Robert, Richard Pratt, James Fox and Joseph Clement, etc. They start from 1814, in 25 years time independently produced the goal planer. This goal planer is mounted on the processing of objects to and from the platform, planer cutting material side. However, this has not been sent planer knives device is in the "Tools" to "mechanical" transformation process. To 1839, a British man 名叫博默德 finally devised a goal planer knives have to send the device. Shaper machining small plane from another Englishman Neishimisi invention 40 years starting in 1831 created a Shaper processing small plane, it can process an object fixed on the bed screens dedicated drilling products, and tools for reciprocating movement . Since then the price of screens dedicated drilling, due to the improved tools appear motor gantry planer hand toward the high-speed cutting, high-precision direction, on the other hand towards the direction of large-scale development.