Die Cutting & Carton Forming Process
The carton should not only protect the internal products but also facilitate transportation. The carton produced by the die cutting process can have a gorgeous appearance, which is very suitable for the market’s need for color packaging cartons.
This is impossible for the carton produced by the slotting process, and it is precisely because of this market demand that the carton die-cutting process has developed rapidly.
From semi-automatic die-cutting machines that require manual feeding one by one to fully automatic flat bed die-cutting machines.
From the manual feeding chain circular die-cutting machine, to the fully automatic circular die cutting machine and the fully automatic paper feeding printing slotting and die cutting machine combined printing machine.
I’ve seen corrugated box die cutting in three ways:
1. Flat die-cutting
2. Round flat die-cutting
3. Circular die-cutting
The advantages and disadvantages of these three methods are briefly described below.
1. Flat Die Cutting
Flat bed die-cutting adopts flat die cutting die and flat-mouth die cutting knife. During die-cutting, the blade cuts through the entire corrugated cardboard at the same time. The die cutting precision is the highest, and the use surface is wide. Adhesive, cardboard, corrugated cardboard and other materials are applicable.
There are two types of flat die cutting machines:
(1) Manual die cutting machines, and now there are also models with automatic feeding and automatic receiving.
The vertical die-cutting machine has simple structure, convenient maintenance, easy operation, and it is relatively simple to replace the die cutting indentation plate.
However, the labor intensity of the user is relatively large, and the production efficiency is low.
(2) Horizontal flatbed die-cutting machine
There are semi-automatic and fully automatic models.
The overall structure of the horizontal flat pressing machine is similar to that of the sheet fed offset printing machine. The whole machine is composed of an automatic cardboard input system, a molding part, a cardboard output part, electrical control, mechanical transmission and other parts, and some also have automatic waste removal. device.
The advantages are obvious: safe and reliable work, high degree of automation and high production efficiency.
The downside is that the purchase price is a bit high.
2. Round Flat Die Cutting
A cylindrical pressure roller is used instead of the pressure plate. Generally, the pressure-cutting roller is on the top and the die-cutting plate is on the bottom. The die-cutting is processed in a “line contact” manner.
The pressure on the machine during molding is small, and the force is evenly distributed, so that the load of the machine is relatively stable, and the die-cutting of larger format can be performed. This method is suitable for die-cutting of products with different material thicknesses.
Circular flat die-cutting is a working cycle of stop rotation or one rotation and two rotations, so the efficiency is low, and it is rarely used at present, and it can still be seen in some small carton factories.
But the purchase cost is relatively low, and the safety is not bad.
3. Round Press Round Die Cutting
The circular die-cutting machine has a history of more than 20 years in my country, and its die-pressing drum can rotate continuously at high speed, so its production efficiency is the highest among all kinds of die-cutting and creasing machines.
The die-cut carton has high precision and can be controlled within ±1 mm, and has the advantages of simple equipment operation, safety and reliability, and long equipment use time.
Which model are you currently using? Or are several models used in combination?
