Automatic balancing mechanism for platemaking roller

Abstract

The invention relates to an automatic balancing mechanism for a platemaking roller. A corresponding device is arranged for the roller aiming at the unbalance generated on a platemaking roller body and different widths of plates on the platemaking roller body so as to realize the automatic balance under multiple sizes of plates. The automatic balancing mechanism is characterized in that: outer discs 14 at two ends of a roller 1 are provided with arc-shaped balancing grooves 17; a movable balancing block 18 is arranged in each balancing groove 17; and when different widths of printing plates are loaded, tail plate clamp bars 13 move to drive the balancing grooves 17 on the outer discs 14 to rotate so that the balancing blocks 18 move to corresponding balancing positions in the balancing grooves 17 along inner grooves of cams 19 and the whole roller is kept to be in a balancing state. The automatic balancing mechanism has the advantages that the same platemaking machine can be used for making multiplex widths of printing plates; a complex balancing drive control system is not required in the roller design, therefore the design cost of the roller and the production cost of the platemaking machine are greatly reduced; and the convenience for use and the easiness of general implementation are realized.

Description

technical field [0001] The invention belongs to the field of plate-making devices in the printing industry, in particular to an automatic balancing device for plate-making cylinders. Background technique [0002] Plate making is an important process in the entire printing process. In a CTP plate making machine, the design of the cylinder plays a vital role in the quality of plate making. It is not only necessary that the cylinder can rotate smoothly, but also that the printing plate should be tightly attached to the cylinder, so as to avoid the phenomenon of flying plate and plate walking during the plate making process. [0003] In the current plate-making technology, due to the high quality of the printing plate and the different format of the required printing plate, the position of the tail plate clamp needs to be changed accordingly. The tail plate clip is attached to the drum. With the different moment of inertia when the drum rotates at a high speed, and the design o...

AI Technical Summary

Problems solved by technology

In order to control the actuator or obtain the equilibrium position reached by the mass unit, it is also necessary to set up a computer with a corresponding identification device and a control device to control the actuator and move the mass unit to the required position. Complicated, not easy to use universally

Chinese invention patent application 200610077835.2 improves the design of the device in the patent document US5,813,346A, but it can only maintain balance at low speeds or do dynamic balancing of certain two specifications (such as figure 1 shown), and the balance it makes is relatively rough, and cannot be accurately applied to printing plates of various specifications

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