Flat Press Die Cutting Technology and Analysis of Related Problems (4)

(III) Stripping and Receiving Section

Most automatic flattening die cutters have a stripping device. Most of them are scrapped through the scrapping needles, and they are also completed using the wooden scrapping version. The wooden stripping version is easy to use, and the stripping effect is better than the stripping needle, which is very helpful for increasing the speed.

When disposing of the waste, pay attention to the following points: (1) Try not to open points on the waste that needs to be removed. 2 Ensure that the size of the reject hole is appropriate. If the reject hole is too large, the entire die-cut product will be scattered when it is emptied; if the reject hole is too small, it will not clear. Generally, the bleed hole is larger than Waste 1.5-2.0mm is more appropriate. 3 You can also add some loose sponges on the stripping version. When cleaning, press the paper to prevent the paper from spreading.

In general, a die cutting machine with a scrapping device has a few problems in the delivery part, and a die cutting machine without a scrapping device is prone to the phenomenon of unsatisfactory cleaning, such as uneven delivery, scattered paper, etc., which can be reduced by the machine. The quick way to solve it will affect the cutting efficiency.

(d) maintenance of flat die-cutting die-cutting machine

Equipment maintenance is of vital importance to any packaging printer. The maintenance of the die-cutting machine has played an active role in ensuring die-cutting precision and prolonging the service life of the equipment, and has caused widespread concern. All of the packaging printing factories we interviewed have formulated a strict maintenance management system. Some printing plants have established daily maintenance. Month maintenance and annual maintenance combined with the maintenance program, and some also every year, die-cutting equipment manufacturers to send someone to inspect and train, do a good job in annual maintenance.

The specific experience is described as follows: Combine the machine maintenance and maintenance manual, list detailed items for each maintenance item and put them next to the equipment. You can add fuel to the equipment according to the oil level chart that the equipment needs to refuel; pay attention to the cleaning of the air pump and suction nozzle to ensure the Smooth paper; regular cleaning of the pull gauge, the main chain, and the tooth row, check whether the tooth is damaged; check the tightness of the main chain to ensure the accuracy of the equipment; pay attention to adding the balance knife when cutting the small format product, if not add the balance The long-term die cutting of the knife will cause the pressure in the front and back of the equipment to be different; the inspection personnel of the machine will inspect and implement the regular maintenance contents of the operator.

In the aspect of maintenance and maintenance of the die-cut version, each packaging printing factory has a dedicated die-cutting administrator, which stores according to different customers and records the use and use of the daily die-cut version. The die cutter and creasing steel wire are inspected, repaired, or replaced when the die cut is on the machine.

Flat die-cutting die cutting process will be high speed, high precision, high reliability. The humanization of machine operation is developing. The operators of packaging and printing plants need to keep up with the development trend, master the related technologies, and accumulate in the production to ensure the perfect die-cutting quality and improve the product quality. (Author: Li Xin)