Cutting device of cutting machine and control method as well as cutting machine

Abstract

The invention discloses a cutting device of a cutting machine. The cutting device comprises a rotating fixing frame, a rotating device is fixedly installed in the rotating fixing frame, the two ends of the rotating device are installed in the rotating fixing frame, and the rotating device is connected with a rotating motor, the rotating motor drives the rotating device to do rotating motion in therotating fixing frame, and the rotating device is provided with a cutter feeding device; the cutter feeding device comprises a driving motor, the driving motor is connected with a spiral propeller through a speed reducer, the spiral propeller is connected with one end of a cutting swing arm through a hinge, the spiral propeller and the cutting swing arm rotate oppositely, and a cutting blade is installed at the other end of the cutting swing arm; and a swing arm rotating shaft is arranged on the cutting swing arm, the swing arm rotating shaft serves as a supporting point, the spiral propellerdrives the cutting swing arm to control the cutter feeding and retracting actions of the cutting blade, and the two ends of the rotating fixing frame are respectively provided with tight clamping devices; and the invention further discloses a cutting control method and a cutting machine. According to the cutting device of the cutting machine and the control method as well as the cutting machine,the operation is simple and convenient, the use is wide, no cutting chips are generated, and it is guaranteed that the production site is tidy and ordered.

Description

technical field [0001] The present invention relates to a cutting device, a control method, and a cutting machine, in particular to a cutting device, a control method, and a cutting machine. Background technique [0002] Chipless cutting of PE plastic pipes is relatively mature for small diameters. The instability of chipless cutting of large diameter PE plastic pipes has always been a problem for many manufacturers. The main reason is that the feeding of cutting blades is not easy to control. And the hydraulic feeding method, the feeding distance and feeding speed are not easy to control; therefore, most manufacturers currently use a circular saw to cut large-diameter PE plastic pipes, which produces a lot of sawdust and is noisy. A lot of waste and environmental pollution are caused, and the section is uneven, which increases the difficulty of pipeline installation and construction. [0003] When cutting PE plastic pipes online, the feed is unstable, and it is easy to cau...

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Problems solved by technology

[0002] Chipless cutting of PE plastic pipes is relatively mature for small diameters. The instability of chipless cutting of large diameter PE plastic pipes has always been a problem for many manufacturers. The main reason is that the feeding of cutting blades is not easy to control. And the hydraulic feeding method, the feeding distance and feeding speed are not easy to control; therefore, most manufacturers currently use a circular saw to cut large-diameter PE plastic pipes, which produces a lot of sawdust and is noisy. Cause a lot of waste and environmental pollution, and the section is uneven, increasing the difficulty of pipeline installation and construction

[0003] When cutting PE plastic pipes online, the feed is unstable, and it is easy to cause impermeable cutting and the pipe cannot be cut, or the cutting blade is damaged if the feed is too fast. The feed distance is controlled by the feed time, but the speed of the feed is also limited. The impact of oil pressure is relatively large, and the pressure of air compressor and hydraulic pump station is controlled within a certain range, not a fixed value; therefore, when the air / oil pressure is high, the feed speed is faster, and the blade is rotating to cut the pipe. Cutting the knife too deep in the process is prone to deviate from the section and cause the cutter to break; when the air / oil pressure is low, the knife feed speed is too slow to cause impenetrable or immobile cutting. great waste of resources

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