Planet cutting mechanism of three-knife trimming machine

Abstract

The invention discloses a planetary cutting mechanism of three-face trimmer, which comprises the following parts: inner gear on the stand, planetary gear to gear inner gear, rotary disc with the same center with inner gear, wherein the rotary shaft of planetary gear is set on the rotary disc, which is output shaft through declaration mechanism for motor, the pin is set on the deviated rotary shaft position on the planetary gear, which connects the connecting rod with the other end connecting sliding block in the groove.

Description

technical field [0001] The invention relates to the technical field of cutting, in particular to a cutting knife driving mechanism of a three-side book trimmer. Background technique [0002] The movement of the cutting knife of the three-sided book trimmer is composed of such a group of cyclic actions as lifting, pausing and cutting; the driving mechanism of the cutting knife that is used more at present is an intermittent movement mechanism; a large gear drives a non- The complete gear, the offset pin on the non-complete gear is connected to a connecting rod, and the other end of the connecting rod is connected to the slider of the cutting knife, so that the cutting knife can lift, stop and cut; when the non-complete gear When the toothed part of the incomplete gear meshes with the large gear, the incomplete gear rotates, driving the connecting rod to move, and the cutting knife is lifted or cut off; when the toothless part of the incomplete gear is relatively large gear, t...

AI Technical Summary

Problems solved by technology

[0002] The movement of the cutting knife of the three-sided book trimmer is composed of such a group of cyclic actions as lifting, pausing and cutting; the driving mechanism of the cutting knife that is used more at present is an intermittent movement mechanism; a large gear drives a non- The complete gear, the offset pin on the non-complete gear is connected to a connecting rod, and the other end of the connecting rod is connected to the slider of the cutting knife, so that the cutting knife can lift, stop and cut; when the non-complete gear When the toothed part of the incomplete gear meshes with the large gear, the incomplete gear rotates, driving the connecting rod to move, and the cutting knife is lifted or cut off; when the toothless part of the incomplete gear is relatively large gear, the incomplete gear, connecting rod and cutting knife Stop movement; there is a dial fixed on the incomplete gear, which is moved by the roller fixed on the large gear. The role of the roller-dial mechanism is to gradually accelerate the incomplete gear from the state of standstill until it is in line with the large gear. Meshing, and gradually decelerating from the state of meshing with the large gear to a standstill; in order to make the incomplete gear stably stop at a certain position, a set of brake disc-brake ring mechanism is also provided. The brake disc set on the incomplete gear, when the incomplete gear When the gear stops, it is restricted by the brake ring on the gear and cannot rotate; it can be seen that this mechanism is actually composed of three mechanisms: incomplete gear mechanism, roller-dial mechanism and brake disc-brake ring mechanism; This kind of mechanism can complete the action requirements of the cutting knife of the three-side shredder, but the mechanism is complicated, the number of parts is large, the assembly and adjustment are difficult, and the cost is high; moreover, since the three mechanisms must work alternately, it is easy to generate noise and impact, which is not easy. suitable for high speed operation

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