Low-tension high-synchronization ultrathin film slitting machine

Abstract

The invention discloses a low-tension high-synchronization ultrathin film slitting machine, and solves the problems that the physical deformation of a film is caused by the excessive tension in the accelerating and decelerating processes of an existing film splitting machine, and the physical characteristics of the film and the consistency of the film quality are further influenced. The low-tension high-synchronization ultrathin film slitting machine is characterized that each roller of a swing roller (2), transmission rollers (3), a knife groove roller (4) and driving rollers (5) is providedwith an independent servo driving device and an independent motor, and all the servo driving devices are controlled by an industrial Ethernet arranged on a rack so that the linear speed of each rollercan be the same. By means of the low-tension high-synchronization ultrathin film slitting machine, the slitting quality is obviously improved, the number of the common phenomena during the slitting of the ultrathin film that many wrinkles appear, end faces are irregular and the film is prone to being broken is obviously reduced, and the electrical property consistency of the ultrathin film is also synchronously improved.

Description

technical field [0001] The invention belongs to a plastic film cutting device, in particular to a low tension and high synchronous ultra-thin film cutting machine. Background technique [0002] BOPP electrical film is the main raw material of film capacitors, and it is used as an insulating medium in capacitors and a carrier of metal plates. With the development of electrical components towards high integration and modularization, capacitors are also required to be smaller in size and stronger in performance. In order to adapt to this trend, the thickness of BOPP electrical film must be thinner, and the mechanical strength, high temperature resistance and high voltage resistance must be better. Existing film slitting machines are generally composed of six major parts: unwinding roller, pendulum roller, transmission roller, knife groove roller, driving roller and winding roller, etc., which are arranged on the frame. The pendulum roller is a passive roller, and the transmiss...

AI Technical Summary

Problems solved by technology

Existing film slitting machines are generally composed of six major parts: unwinding roller, pendulum roller, transmission roller, knife groove roller, driving roller and winding roller, etc., which are arranged on the frame. The pendulum roller is a passive roller, and the transmission roller The rollers, knife grooved rollers and driving rollers are driven by a single driving motor through a synchronous belt. Since the speed of each roller lags behind when the speed changes, there is a phenomenon that the film is "stretched" between the rollers during operation. Therefore, the existing film separation The cutting machine cuts ultra-thin films with a thickness between 2u and 10u. During the acceleration and deceleration process, there is too much tension, which causes the physical deformation of the film, which in turn affects the physical characteristics of the product and the consistency of product quality.

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