The plastic pipe shredder is a kind of crushing equipment commonly used for waste plastic pipes, and its cutter is the core component to realize the work. This paper will conduct research on the knives of plastic pipe shredders, including classification, material selection, structural design and optimization, in order to improve the performance and service life of the knives.
1.Classification
According to the structure and application field of the cutter, the cutter of the plastic pipe shredder can be divided into the following categories:
Blade-type cutters: Blades are used as the main crushing components, and the common ones are shear blades, flat blades and oblique blades, etc.
Hammer blade: Use hammer blades for impact and shredding operations, suitable for plastic pipes with high hardness.
Hook Knife: Effectively rips and cuts plastic tubing with a hooked blade.
2.Material selection
The material selection of the tool directly affects its hardness, wear resistance and impact resistance. The commonly used tool materials are as follows:
High-speed steel: It has high hardness and wear resistance, and is suitable for crushing plastics with high hardness.
Ferritic stainless steel: It has corrosion resistance and wear resistance, and is suitable for processing plastic pipes containing corrosive substances such as acid and alkali.
Alloy steel: It has high strength and wear resistance, and is suitable for processing a large number of plastic pipes with low hardness.
3.Structure design and optimization
The structural design of the tool needs to consider the following factors:
Blade shape: Choose the blade shape according to the characteristics of the plastic pipe, such as the angle of the blade, the spacing and shape of the teeth, etc.
Number and arrangement of knives: Determine the number and arrangement of knives according to work requirements and processing capacity to improve work efficiency and uniformity.
Tool fixing method: The connection between the tool and the main body of the shredder needs to be stable and reliable to prevent the tool from loosening or falling off.
Tool wear and replacement: Knives will wear out during use and need to be checked regularly and replaced in time to ensure cutting performance and safety.
In order to improve the performance and service life of the tool, the following optimization measures can be taken:
Surface coating treatment: By coating the surface of the tool, such as surface hardening, plating, etc., the hardness and wear resistance of the tool can be improved.
Assembly accuracy control: ensure the assembly accuracy of the knives, reduce the gap between the knives, improve the cutting effect and work stability.
Tool cooling system: Set up a cooling system around the tool to reduce the temperature of the tool and reduce heat loss and wear.
Regular maintenance: Regularly inspect and maintain the tools, and timely discover and repair problems such as wear, cracks and deformation of the tools.
In conclusion:
The tool research of plastic pipe shredder is an important aspect to improve the performance and service life of the equipment. Through reasonable selection of tool type and material, and structural design and optimization, the cutting effect, work efficiency and safety can be improved. In addition, regular maintenance and maintenance of knives is also the key to a long service life. In future research, new tool materials can be further explored, tool structure can be improved, and cutting parameters can be optimized to continuously improve the tool performance of plastic pipe shredders.
Jiangsu Xinrongplas Machinery Co., Ltd. has been engaged in plastic extrusion recycling equipment for 26 years, if you are interested in our products, please contact us!