In the field of machining, a slitting machine is an important piece of equipment used to split wide materials into narrow materials. The determination of the size of the row knife gap of the slitting machine is one of the key links in the design of the slitting machine, which directly affects the processing quality and production efficiency of the slitting machine. This article will introduce in detail the method and precautions for determining the clearance size of the slitting machine.
First, the slitting machine knife clearance size determination method.
The gap size of the slitting machine refers to the distance between the slitting machine's knife row and the lower knife. The size of this distance directly affects the cutting effect of the slitting machine and the quality of the material. Therefore, determining the appropriate clearance size of the knife row is the key to the design of the slitting machine.
1.According to the material properties, the size of the row knife clearance is determined.
Different materials have different mechanical properties and physical properties, so factors such as hardness, toughness, fiber orientation and thickness of the material need to be considered when determining the size of the row knife gap. For materials with higher hardness, the row knife clearance should be appropriately reduced to increase the cutting force;For materials with good toughness, the gap between the row knives should be appropriately increased to prevent the material from tearing during the cutting process.
2.Determine the clearance size of the row of knives according to the processing requirements.
Different machining requirements have different requirements for the size of the row of cutter clearances. If high-quality slitting is required, the gap between the row knives should be as small as possible, which can reduce the cutting error and improve the cutting accuracyIf the thickness of the material to be processed is large, the gap between the row knives should be appropriately increased to reduce the cutting resistance and prevent the row knives from bending and deforming.
3.The size of the row knife clearance is determined by the experiment.
In actual production, it is necessary to determine the size of the row knife clearance according to the experiment. By continuously adjusting the row of knives and observing the cutting quality and material deformation, the appropriate size of the row of knives is finally determined. During the experiment, it is necessary to pay attention to controlling the experimental conditions, such as material temperature, environmental humidity and cutting speed, etc., to ensure the accuracy and reliability of the experimental results.
Second, the slitting machine knife clearance size adjustment method.
After determining the appropriate size of the row of cutters, it is necessary to adjust the slitting machine row gap to ensure the processing quality. Here are a few common ways to adjust the row of knives.
1.Screw adjustment method.
The row knives of the slitting machine are usually fixed to the frame by screws. By adjusting the position of the screw, the distance between the row of knives and the lower knife can be changed, so as to achieve the purpose of adjusting the clearance of the row of knives. This method is simple and easy, but you need to pay attention to the tightness of the screws during the adjustment process to avoid loose or too tight screws and inaccurate position of the row of knives.
2.Gasket adjustment method.
The gasket adjustment method is to place gaskets of different thicknesses between the row knife and the lower knife, and adjust the gap between the row of knives by increasing or decreasing the number of spacers. This method is suitable for a wide range of knife clearance adjustment, but it should be noted that the thickness of the gasket should be accurate, otherwise it will affect the accuracy of the row knife clearance.
3.Hydraulic adjustment method.
The hydraulic adjustment method is to use the hydraulic system to control the lifting of the row of knives, and adjust the clearance of the row of knives by changing the height of the row of knives. This method enables fast and accurate row clearance adjustment, which is suitable for highly automated production lines. However, it should be noted that the hydraulic system needs to be kept clean and stable in working condition to avoid errors and failures in the adjustment process.
3. Maintenance and maintenance of the gap size of the slitting machine.
In order to maintain the accuracy of the slitting machine knife clearance and prolong the service life of the equipment, regular maintenance and maintenance are required. Here are some common maintenance and upkeep practices.
1.Regularly inspect the wear and tear of the row knives.
During the long-term use of the slitting machine, the row knives will be worn to varying degrees. Therefore, it is necessary to regularly check the wear and tear of the row knives and replace the seriously worn row knives in time to ensure the cutting quality and equipment performance. At the same time, it is also necessary to pay attention to check the wear and tear of the lower knife, and replace it in time if necessary.
2.Keep the device clean.
The slitting machine is easy to accumulate dust and debris during use, and these dirt will affect the normal operation of the equipment and the accuracy of the knife clearance. Therefore, the equipment needs to be cleaned and maintained regularly to keep it tidy and in good working condition. At the same time, it is also necessary to pay attention to the environmental hygiene around the clean cutting area to prevent debris and dust from entering the inside of the machine.