Preparation of slitter cutter
1. Razor slitting
1.1. The razor slitting requires the film to travel in the correct direction to the winding section.
1.2. Adjust the photoelectric tracking to bring the film to the proper position.
1.3. Tension the film and attach the blade to the razor holder.
1.4. According to the specifications required by the instruction sheet, the sliding razor holder is cut into the razor groove under the film, and the blade edge and the edge of the sipe are required to be in contact with each other.
1.5 After adjusting the depth of the cutter, lock the razor frame screws.
2. Round knife cutting
2.1. Check whether the upper and lower knives are sharp and have no gaps, and vice versa;
2.2. Determine the number of knives (N+1) according to the number of product series (N);
2.3. Install the lower knife to adjust the width of the lower knife according to the actual width of the product;
2.4 Install the upper knife correctly. The flat side of the upper knife is aligned with the side of the lower cutting edge. The upper knife is aligned with the gap between the lower knife and the septum. Press the screws on both sides to make the upper knife enter the gap depth to about 2mm. The upper knife is attached to the lower knife and fastened. Finally, the screw on the left side of the upper knife holder is adjusted so that the whole knife holder moves 1-2 mm to the right side and is fastened.
The basic knowledge of the slitting machine and its development process --
Basic knowledge and development of slitting machine
In the process of slitting, the stable tension system is an important indicator to ensure the quality of the product. It controls the mutual tension between unwinding, drawing, slitting, winding, etc., so that the slitting material is always in the cutting process. A steady state. If the tension is properly controlled, it can avoid the deformation and drift of the raw materials during the process of speeding up and slowing down the machine. Generally, the unwinding tension is slightly larger than the sum of the reel tensions. Most of the previous slitting machines use magnetic powder clutch to control the tension, but the magnetic powder clutch speed can not be high. It is easy to cause high-speed friction of the magnetic powder during operation, which causes high temperature and shortens its life. In severe cases, it will be stuck and the machine operation will be blocked. With the development of science and technology, the use of servo drive technology, most of them now use vector variable frequency motor to control the tension system of the slitting machine. The automatic detection of the pendulum roller makes the man-machine interface intuitive, the tension system is more stable and reliable, and easy to operate.
Domestic cutting machine development status and outlets ---
5. Strategically lacking deeper cooperation with film-making companies
China has made tremendous changes in the economy in the past decade or so. Film-making enterprises have grown from scratch, from large to strong, and film-making enterprises have been listed on domestic and overseas stock markets, with dozens of them, and the key slitting machine industry is currently facing The small scale and low output value are extremely disproportionate to the scale of the film-making industry. There are two reasons for the above phenomenon: First, for the manufacturing of slitting machine enterprises, the opportunity has not been seized in time, and The knowledgeable film-making enterprises have jointly developed the domestic and foreign slitting machine market. Secondly, from the perspective of film-making enterprises, they have not been able to support some cutting-edge machine enterprises with promising prospects from reducing manufacturing costs, and jointly research and develop production slitting. device. If the film-making enterprises can reduce the purchase cost and operating cost, the price competition faced by today's film-making enterprises will be alleviated, and at the same time, the world-class cutting machine enterprises will be created.
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