How do the parameters such as die-cutting pressure, paper feeding speed and positioning accuracy affect the operation of automatic high-speed die-cutting machine?

Die-cutting pressure, paper feeding speed and positioning accuracy are the core process parameters in the operation of automatic high-speed die-cutting machine. They are interrelated and determine the comprehensive operation state of the equipment from three dimensions: product quality, production efficiency and equipment stability, and their specific effects are as follows:

Die-cutting pressure is the core parameter to ensure the die-cutting effect, which directly determines the die-cutting edge quality and indentation clarity of paper products, corrugated board and other materials. If the die-cutting pressure is too low, there will be problems such as incomplete knife marks, incomplete separation of paper, shallow indentation lines and easy rebound, which will lead to the failure of normal folding of finished products or the difficulty of waste removal. At the same time, the uncut paper may wind the transmission parts when the equipment is running at high speed, causing material jamming and even blade collapse of the knife die. If the pressure is too high, it will not only aggravate the wear speed of the die, shorten its service life, but also cause the cardboard to collapse and the edge of the paper to be seriously burr. For corrugated cardboard, too high pressure will collapse and affect the load-bearing performance of the finished package. In addition, excessive constant pressure will also increase the load of the hydraulic or mechanical transmission system of the equipment, leading to equipment damage such as motor overload and pressure plate deformation, and reduce the running stability of the whole machine.

The paper feeding speed is a key index that affects the production efficiency and the smoothness of equipment operation, and it needs to match the die-cutting pressure and the mechanical structure and performance of equipment. Increasing the paper feeding speed within a reasonable range can directly improve the productivity per unit time, which meets the efficiency requirements of large-scale production. However, when the paper feeding speed is too fast, the materials are prone to skew and slip due to inertia in the conveying process, which leads to the deviation of die-cutting position. At the same time, high-speed transportation will increase the friction loss between the paper feeding roller and the paper, which will easily produce electrostatic adsorption of paper scraps, thus affecting the subsequent die-cutting and waste removal processes. If the paper feeding speed is too slow, it can improve the stability of single paper feeding, but it will reduce the overall production efficiency. Moreover, under the low-speed operation state, the motor and transmission system of the equipment are prone to low-frequency vibration, and long-term low-load operation will cause energy waste and invalid loss of components. At the same time, the slow production beat will affect the connection between the previous and subsequent processes and reduce the overall synergy of the production line.

Positioning accuracy is the core guarantee to ensure the accurate alignment between die-cutting pattern and material printing content, which is directly related to the qualified rate and aesthetics of finished products. When the positioning accuracy is insufficient, there will be problems such as offset of die-cutting pattern and inaccurate overprint, especially for packaging products with printed patterns, the dislocation of pattern and die-cutting edge will directly lead to the scrapping of finished products, which will greatly increase the production cost; High-precision positioning (usually controlled within ±0.1mm) can ensure that the die-cutting position of each material is consistent, which can not only improve the quality of finished products, but also reduce the number of downtime adjustments caused by positioning deviation and indirectly improve production efficiency. In addition, the positioning accuracy also depends on the performance of the photoelectric positioning sensor and servo drive system of the equipment. If the positioning parameters are set unreasonably or the sensor sensitivity is insufficient, the equipment will frequently have positioning alarms, paper feeding interruption and other failures, which will affect the production continuity. At the same time, the long-term positioning deviation will also aggravate the uneven wear of the die cutting tool and further reduce the technological stability of the equipment.