Every Die-hard Die-cutting Die-cutting Example

Fifth, examples of die cutting problems

The Cangzhou Cigarette Material Factory produced C-type corrugated cartons prior to 2004 using mechanical slotting, which resulted in high production costs, insufficient positive rear molding, unstable dimensions, serious crossovers, and air leakage. The original size requirements of the carton were: :

In order to change the status quo, in 2005 the plant through the improvement of equipment technology, five-tier line introduced a computer cross cutting machine, three-color printing press using die-cutting. Where to install the stencil roll holder size

A. The circumference X of the roller is =1112mm X 2000mm;
B, the diameter of the screw on the roller is 8mm
C, the distance between the screw on the roller width x height = 50mm x 55mmo

Based on the above technological transformation of the equipment, the lower section of the technological parameters of the carton was adjusted. The dimensions of the template are described in the figure below.

Since the maximum arc length of the stencil is 610 mm, there is a thousand joints in the direction of 827 mm, and the length in the direction of the pressure line increases. The actual processing size of 570mm will become 575mm, so the back face of the stencil joint needs to be reworked, and the actual size becomes 567mm. This inch basically overcomes the problem of equipment processing error caused by the horizontal pressure line floating down, so as to effectively solve the side of the leak after the formation of the phenomenon of angle.

The plant's three-layer paperboard production line was equipped with vertical pressure lines. Therefore, when designing the stencil, the pressure line and the 827mm paper segmentation knife were omitted, and two horizontal and two lateral knives were removed from the tongue and tail. The control error was focused on the tongue. side. This practice reduces costs (saving the length of the blank and reducing the length of the knife) and reduces the amount of chips. The 7mm length of slot facilitates the natural drop of the chips.

Based on the above design, the formed carton has a positive appearance and a stable internal diameter, which effectively reduces the production cost.

Source of information "Corrugated carton" 2005, 9