Introduce to you: asynchronous die cutting machine

I. Definition and Basic Principles

definition

Asynchronous die cutting machine is a kind of equipment used for die cutting. Die-cutting is to cut raw materials according to pre-designed patterns to make them into products with specific shapes. Asynchronous die-cutting machine is mainly used for high-precision die-cutting of various coils (such as paper, plastic film, adhesive, etc.).

fundamental principle

It transports the coil to the die-cutting station through a series of transmission devices. In the die-cutting station, the upper die and the lower die cut the coil under the pressure. Different from synchronous die-cutting machine, the die-cutting action of asynchronous die-cutting machine and the conveying action of coil are not strictly synchronous. It can carry out intermittent die-cutting operation according to the set parameters such as time and distance in the process of coil transportation, so that it can more flexibly adapt to products with different shapes, sizes and die-cutting requirements.

Second, the structure composition

Unwinding device

This is the beginning of the coil. The unreeling device generally includes unreeling shaft, tension control system, etc. The pay-off reel is used to carry the coil, and the tension control system can ensure that the coil keeps proper tension during the pay-off. For example, when processing paper coil, if the tension is too large, the paper may be pulled off; If the tension is too small, the paper may wrinkle, which will affect the die-cutting accuracy.

conveying system

The conveying system is responsible for conveying the coil from the unreeling device to the die-cutting station. It usually includes a plurality of driving rollers, which are driven by motors and belts. The surface material and precision of driving roller have great influence on the conveying quality of coil. For example, for the plastic film coil with smooth surface, the surface of the driving roller needs a certain friction force to prevent the coil from slipping.

Die cutting system

Die cutting system is the core part of asynchronous die cutting machine. It includes upper die holder, lower die holder, die cutter and other parts. The upper die holder and the lower die holder can be closed and opened by hydraulic, pneumatic or mechanical transmission. The shape and precision of die-cutting knife directly determine the shape and quality of die-cutting products. Die-cutting knives are generally made of high-quality steel and need to be sharpened and replaced regularly to ensure the die-cutting effect.

Winding device

The winding device is located at the end of the coil and is used to collect the die-cut products. The structure of the winding device is similar to that of the unwinding device, but it also needs to consider the uniformity and tension balance of the product after die-cutting. For example, when winding self-adhesive labels, it is necessary to ensure that the labels are closely attached and the winding tension is uniform to prevent the labels from warping.

Third, advantages

High flexibility

Because the die-cutting action and coil conveying can be carried out asynchronously, it can handle various die-cutting patterns with different shapes and sizes conveniently. For example, in the production of special-shaped labels, it can flexibly adjust the time and position of die cutting according to the complexity and spacing requirements of patterns, without the strict synchronization restrictions like synchronous die cutting machines.

High precision.

Asynchronous die cutting machine can accurately control the position and depth of die cutting through advanced control system. For example, when die-cutting the plastic film used for packaging electronic components, it can control the die-cutting accuracy at millimeter or even micron level, ensuring that the size and shape of each package meet the requirements, which is conducive to protecting electronic components.

Wide application range

It can be used for die cutting of various coil materials, including paper, plastic film, aluminum foil, self-adhesive and so on. Different materials have different physical properties, such as hardness, toughness, thickness, etc. Asynchronous die-cutting machine can adapt to these materials by adjusting die-cutting pressure, speed and other parameters. For example, when die-cutting thick cardboard, you can increase the die-cutting pressure; When die-cutting thin and soft plastic film, the die-cutting speed can be appropriately reduced to obtain good die-cutting effect.

Fourth, the application field

Packaging industry

It is widely used in food packaging, drug packaging, electronic product packaging and other fields. For example, in food packaging, it is used to die-cut labels of various shapes, windowing parts of cartons, etc. For drug packaging, it can accurately die-cut the shape of drug instructions, or the anti-counterfeiting label on the medicine box.

Label industry

It is the key equipment for producing self-adhesive labels and anti-counterfeiting labels. According to different label design requirements, such as round, square and special-shaped, die-cutting can be carried out quickly and efficiently to meet the large-scale and diversified needs of label production.

Electronics industry

Used for die-cutting packaging materials of electronic components, protective film of flexible printed circuit board (FPC), etc. For example, when die-cutting FPC protective film, asynchronous die-cutting machine can improve production efficiency and ensure the safety of electronic components during production, transportation and storage.