Waste discharging device for knife roll of rotary die-cutting machine

Abstract

The invention discloses a waste discharging device for a knife roll of a rotary die-cutting machine. The waste discharging device comprises a cutting die and movable shaft shoulders arranged at the ends of the cutting die. An inner cavity of the cutting die is hollow, the cavity wall of the cutting die is uniform, and the inner cavity of the cutting die is filled with an elastic component. A special-shaped ejector pin is arranged on the upper portion of the elastic component. The special-shaped ejector pin makes direct contact with the elastic component. The special-shaped ejector pin is composed of two parts which are a pin body and a base. The pin body is fixedly connected to the upper portion of the base. One part of the pin body stretches out of the surface of the cutting die, and the other part of the pin body stretches into the inner cavity of the cutting die. The pin body is provided with a plurality of arc surfaces, and every two arc surfaces are symmetric. The base is round. An indentation is formed in the base. The shape of the indentation is matched with the shape of the lower portion of the pin body. The waste discharging device for the knife roll of the rotary die-cutting machine is simple in structure, convenient to use, high in practicality, suitable for various products with small shapes and small gaps, and capable of discharging waste completely, improving production efficiency and reducing production cost.

Description

technical field [0001] The invention relates to the technical field of engraving abrasive tools, in particular to a waste discharge device for cutter rollers of a rotary die-cutting machine. Background technique [0002] The working parts of the plate table and the press-cutting mechanism of the rotary die-cutting machine are both cylindrical. When working, the paper feed roller sends the material between the mold plate cylinder and the pressure cylinder, and the two clamp it. The cylinder is used for die-cutting, and the die-cutting plate cylinder rotates once to complete a working cycle. The rotary die cutting machine will produce waste when cutting products. How to discharge waste well has a great impact on the service life of the knife roller. The graphic size gap given by the customer is too small and the quantity is too large. The cut waste is easy to jam In the knife edge, the material accumulates in the middle of the knife edge after multiple roll cuts. If there is ...

AI Technical Summary

Problems solved by technology

The rotary die cutting machine will produce waste when cutting products. How to discharge waste well has a great impact on the service life of the knife roller. The graphic size gap given by the customer is too small and the quantity is too large. The cut waste is easy to jam In the knife edge, the material accumulates in the middle of the knife edge after multiple roll cuts. If there is no space to avoid it, the knife edge will be squeezed and collapsed. A knife with a gap will directly affect the integrity of the cut product.

[0003] In view of the diversification of market products, ordinary switchblades can no longer meet the requirements. As the gap between products is getting smaller and smaller, the graphics are becoming more and more irregular. Common thimbles require a gap of more than 0.8mm, while products with a gap between 0.2-0.8mm More and more, because the ordinary thimble is a whole, it is not practical for products with various shapes and small gaps, and the waste discharge is not complete, which indirectly affects the service life of the knife roller and reduces work efficiency.

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