Slitting machine is a pre-press that divides a large volume of paper, film, non-woven fabric, aluminum foil, mica tape and other thin materials into small rolls of different widths. Postpress equipment is commonly used in papermaking machines and printing and packaging machinery.
In the past, the speed of the magnetic clutch of the slitter could not be high, because it could easily cause high-speed friction of the magnetic powder during operation, resulting in high temperature and shortening its life. In severe cases, it would be stuck, causing the operation of the machine to be impeded and bringing serious consequences to the production.
Heavy impact on production efficiency. Now is the use of dual-frequency motor control, making the diameter of the winding material becomes larger through the frequency conversion motor control to make the magnetic powder friction at a certain value. Without high temperatures.
The traditional control scheme of the slitter is to use a large motor to drive the shaft of the retracting reel. A magnetic powder clutch is added to the rewinding reel. The resistance of the magnetic clutch is controlled by adjusting the current of the magnetic powder clutch to control the tension of the material surface. . Magnetic powder clutches and brakes are a kind of special automation actuators. It transfers magnetic torque through the magnetic powder filled in the working gap, and changes the magnetic current to change the magnetic state of the magnetic powder, and then adjust the transmitted torque. Can be used for stepless speed regulation from zero to synchronous speed, suitable for high speed trimming and medium and low power speed control systems. It is also used in an uncoiling or rewinding tension control system that adjusts the torque by adjusting the current to ensure that the tension during the winding is kept constant.
Slitters are continuously controlled from single-motor to dual-motor, three-motor development, and are more stable and efficient at faster machine speeds.
The main feature of the slitting machine is that the magnetic powder clutch acts as a resistance device. Through system control, a DC voltage is output to control the resistance generated by the magnetic powder clutch. The main advantage is that it is a passive device that can control less tension.
Disadvantages: It cannot be high speed. High-speed friction of magnetic powder is easily caused during high-speed operation, resulting in high temperature, which causes the magnetic powder clutch to heat up and shorten its service life. A tool is used to longitudinally cut a web of a certain width, and a device for cutting a plurality of narrower rolls is cut. After it is installed in a calender, an extruder, a glue coater, and other unit devices, continuous cutting can be completed, often with a winding device. Cutting knife can use flat knife and round knife.
Slitting machine products for paper processing machinery: paper slitters, small-pane paper slitters, web slitters, high-speed slitters, etc.
Slitters for metal processing machines: strip cutting machines, copper cutting machines, aluminum cutting machines, stainless steel cutting machines, tinplate cutting machines, etc.
Slitting machine magnetic powder brake device Slitting machine unwinding group, connecting with the air expansion shaft with transmission parts, controlling the torque of the magnetic powder brake to control the speed of unwinding
Winding magnetic brake
Winding magnetic brake
degree. The magnetic powder brake is selected according to the size of the whole material of the slitter unwinding group. The common specifications of the magnetic brake of the slitter include 12Nm, 25Nm, 50NM, 100Nm, 200Nm, and 400Nm. The magnetic braking device of the slitting machine mainly provides balanced and stable torque, which can be matched with the tension controller to adjust the torque, so that the efficiency and quality of the unwinding operation and the entire operation of the slitting machine can be improved.
The magnetic powder brake tension control is accurate and simple, which can prevent the slitter from placing the material of the reel group. The magnetic brake of the slitter uses DC24V DC voltage, and the cooling can be naturally cooled (air-cooled) or the fan is forced to dissipate heat. During the installation, please keep the magnetic brake of the slitter on the horizontal axis and the surrounding environment must not be too humid.
Equipment features: 1. Focus on panel operation, integrated circuit control. The various departments of the machine focus on panel operation control. 2. Main functions of the panel: A. Spindle speed adjustment B. Winding length setting C. Unwinding tension adjustment D. Winding tension setting E. Start. stop button. 3. Knife with upper and lower round knife. And can be based on different cutting width replacement knife pad, adjust the cutting width to achieve high-quality cutting quality.
The machine table should be installed in a place with proper temperature, dryness, ventilation, good light, and convenient operation.
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