Cutter frame regulating mechanism of three-surface trimmer

Abstract

The invention discloses a cutter frame regulating mechanism of a three-surface trimmer, comprising a main shaft (1), cutter frames (3, 3'), a sleeve reed, a left screw (4) and a right screw (4'), wherein the sleeve reed is provided with a left sleeve reed (2) and a right sleeve reed (2') which are sheathed on the main shaft (1); and the left and the right sleeve reeds (2, 2') are respectively connected with the corresponding cutter frames (3, 3'); the left sleeve reed (2) is screwed with the left screw (4); the right sleeve reed (2') is screwed with the right screw (4'); the left screw (4) is connected with the right screw (4'); the spiral direction of the left screw (4) is opposite to that of the right screw (4'); the left screw (4) or the right screw (4') is in transmission connection with a decelerating motor (7); and the decelerating motor (7) is electrically connected with a programmable controller. The invention is characterized in that lower reed arms (16) of the left and right sleeve reeds (2, 2') are all provided with cylinders (14), and handspikes (13) of the cylinders (14) are all connected to the corresponding upper reed arms (10). In the cutter frame regulating mechanism with the structure, a command is transmitted to a servo motor by the controllable interface setting of the programmable controller; the motor rotates to drive the left screw and right screw to rotate, thereby regulating a distance between the cutter frames and precisely regulating to cut the length of a book. The cutter frame regulating mechanism has the advantage of precise and stable regulation.

Description

technical field [0001] The invention relates to a three-side trimmer, in particular to a knife rest adjustment mechanism of the three-side trimmer. Background technique [0002] Due to the large number of books printed, in order to facilitate the consistency of the length and width of a large number of books after printing, a three-side trimmer is used. This kind of three-side trimmer places the books horizontally on the operating platform and uses a three-side trimmer. The two side knives of the book machine cut the length of the book, and the front knife cuts the width of the book. At present, there are many three-side shredders on the market. One of the most commonly used three-side shredders is to install two knife rests on a main shaft, install side knives on the knife rest, and install them in front of the operating table of the upper shredder. For the front knife, when the main shaft moves downward, the two side knives will cut to the book, and the book will be cut ...

AI Technical Summary

Problems solved by technology

However, the accuracy of this adjustment structure is very poor, and the reed is easy to move when the bolt is tightened after adjustment. In this way, after cutting by the side knife, there is a large error from the required length.

Moreover, this method of using bolts to fasten the reed has very low reliability. When the side knife cuts the book, the impact force is relatively large, which may cause the reed to rotate on the main shaft, which will cause the side knife to cut the book. Incomplete situations occur, which seriously lead to the scrapping of the entire book

Images