Automatic die cutting machine for Carton Folder-Gluer

Automatic die cutting machine for Carton Folder-Gluer

Precision and speed are essential factors that are inversely related during the die cutting process in the flexo folder-gluer. The die cutter is usually located after the creaser-slotter; however, there are some instances where the die cutter comes prior to the creaser-slotter section of the machine. These two sections of the machine are always located side-by-side in order to make alignment more precise. Originally, the cutting of the blank in the flexo folder-gluer was created for speed rather than precision. In today’s packaging market, both speed and precision are critical. As speed increases in the in-line die cutting process, precision decreases. It is essential for box plant manufacturers to find the correct speed and precision in order to maximize profits.
A rotary cutting process is most common in flexo folder-gluers to increase the speed of the process. A minimum of four cylinders are needed in the die cutting process. Two of the fourare pull rollers which are used to feed and support the corrugated board through the machine. The die and the anvil cylinders are used to complete the actual cutting of the board. As the corrugated board passes between rollers, it is cut by the bladed die which presses against the anvil roller. The order in which the cylinders are placed is not critical. However, the two pull rollers must be together and the die and anvil cylinders must be together as well. All cylinders must rotate at the same surface speed to keep the alignment correct. Die cutting is one of the limiting processes in the box making process . It is slower than the other operations performed by the flexo folder-gluer.

The die cutting process in the flexo folder-gluer offers more options than other parts of the machine. The in-line die cutting process provides a variety of cutting mechanisms in order to accommodate for different preferences. There are three main processes used for die cutting, two of which are common in flexo folder-gluers. Soft cut and steel-to-steel processes are both used in the box making process. They each have different advantages and disadvantages.
The soft cut approach better adapts to the other components of the flexo folder-gluer. Soft die cutting was not invented until 1962, after the invention of the flexo folder-gluer. This process consists of a shear cut that is assisted by the use of an anvil roller. Scrap removal is the driving force of this operation. The blank is what remains after the process is complete.
Steel-to-steel cutting is much more precise but also more costly than the soft cut approach. The steel-to-steel process is able to permit more die rule compared to the soft cut process. Therefore, more complex box shapes that require cutouts are best produced on a steel-to-steel process. From technological advances, this process also allows for easy removal of scrap. Although this process is more precise than soft cut, it requires higher start-up costs. The cost of the dies is more expensive than the alternative process. However, it continues to increase in popularity because of its precision and repeatability. There are two types of steel-to-steel cutting processes. Most flexo folder-gluer operations have a steel-to-steel process that consists of a male die and an anvil. The other type used is a male and female die that are aligned together. However, in this process the two dies have to match precisely causing the process to be slower and more expensive. Using a male die with an anvil roller allows for independence between the two cylinders making set up easier and causes less error in the process.

Hebei Shengli Carton Equipment Manufacturing Co.,Ltd is one of the largest Corrugated Carton & Box Making Converting Printing Machines Equipments manufacturers in China, supply high quality machines and good service for corrugated box plants wordwidely. We are specialized at corrugated box carton & cardboard machines . Corrugated sheet making machine, corrugated sheet cutter, boardcard slitter, flexo printing press, box folder & gluer, corrugated cardboard die-cutting machines. Anything you have interested, please contact me : corrugatedboxmachine@hotmail.com

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