A device and method for detecting and compensating the motion error of the knife shaft of a spiral cross-cutting machine

Abstract

The invention discloses a motion error detection and compensation device and method for cutter shafts of a spiral transverse cutting machine. A radial receiving screen is installed in the middle portion of the upper cutter shaft. A beam splitter mirror is arranged on the side face of the upper cutter shaft. An upper cutter shaft light transmitting device is arranged at the end of the upper cutter shaft. A lower cutter shaft detection screen is arranged at the end of the lower cutter shaft. A laser generator generates laser beams, the laser beams are divided into two beams of lasers through the beam splitter mirror, the first beam of laser radiates the radial receiving screen, and after passing through the upper cutter shaft light transmitting device, the second beam of laser enters the lower cutter shaft detection screen. According to the device, real-time measurement of the rotating speed difference of the upper cutter shaft and the lower cutter shaft and detection of radial deformation of the cutter shafts are conducted at the same time through one beam of laser. The rotating speed of the upper cutter shaft and the lower cutter shaft is adjusted in real time through the detected errors, it is guaranteed that in the movement of paperboard cutting through the cutter shafts, the motion errors of the upper shaft and the lower shaft are in the controllable range, and accordingly the cutting flatness and the cutting quality of paperboards are guaranteed.

Description

technical field [0001] The invention relates to the motion error detection of the knife shaft of a cardboard cross-cutting machine, in particular to a detection and compensation device and method for the knife shaft motion error of a spiral cross-cutting machine. Background technique [0002] In the production process of corrugated cardboard and honeycomb cardboard, the cross-cutting machine is mainly used to cut the cardboard and cut the cardboard into the required size, while the spiral cross-cutting machine is widely used because of its small motor power and high production efficiency. [0003] Such as figure 1 As shown, the core part of the cardboard cross-cutting machine is composed of a motor 33, a reducer 38, a transmission system 34, a cutter shaft 36, a frame 39, a bearing 37 and the like. figure 2 It is the stick knife structure diagram, and the stick knife blade 36-1 is installed on the knife shaft stick. The paper cutting part is composed of two sets of upper ...

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