The Feeding Problem of the Original Plastic Crusher

Designing Straight Tube Feeding Port for Plastic Crusher to Facilitate Feeding

June 28,2025

In the plastic recycling and processing industry, the efficiency of plastic crushers directly affects the overall production progress. A plastic processing enterprise in [Area] was troubled by the feeding problem of its plastic crusher, which seriously restricted the production efficiency. After in - depth communication and on - site investigation, we designed a straight tube feeding port for its plastic crusher, which effectively solved the feeding dilemma.

The Feeding Problem of the Original Plastic Crusher

The original feeding port of the enterprise's plastic crusher was a funnel - shaped structure with a relatively small upper opening and a curved transition to the crushing chamber. During the actual production process, this structure brought a series of problems.

First of all, when feeding larger plastic pieces or bulk plastic materials, they were often stuck at the curved transition part of the funnel - shaped feeding port. The workers had to use tools to push the materials into the crushing chamber, which not only wasted a lot of time and energy but also increased the risk of workplace accidents.

Secondly, the feeding speed was seriously affected. Due to the easy blockage of the feeding port, the materials could not enter the crushing chamber continuously and smoothly. The crusher often operated under the condition of insufficient material supply, which reduced the crushing efficiency and could not give full play to the equipment's performance.

In addition, the funnel - shaped feeding port was not easy to clean. After a long period of use, plastic residues would accumulate at the curved part, which not only affected the hygiene of the production process but also might cause cross - contamination between different types of plastics, affecting the quality of the crushed products.

Design Ideas of Straight Tube Feeding Port

In view of the problems existing in the original feeding port, we put forward the design scheme of the straight tube feeding port. The core idea is to ensure that the plastic materials can enter the crushing chamber smoothly and quickly through a straight and unobstructed channel.

First, determine the diameter of the straight tube. According to the size of the plastic materials commonly processed by the enterprise and the feeding capacity required by the production, we calculated and determined the appropriate diameter of the straight tube. The diameter is slightly larger than the maximum size of the commonly used plastic materials to avoid the problem of material jamming caused by insufficient space.

Second, design the length of the straight tube. The length of the straight tube is determined according to the height of the crusher and the feeding habits of the workers. It should be convenient for workers to transport materials to the feeding port and ensure that the materials can fall into the crushing chamber by their own gravity without additional pushing.

Third, optimize the connection between the straight tube and the crushing chamber. We designed a smooth transition structure at the connection part to avoid the occurrence of material accumulation. At the same time, a baffle is added at the connection to prevent the crushed plastic fragments from splashing out of the feeding port during the crushing process, ensuring the safety of the production site.

Implementation of the Straight Tube Feeding Port Transformation

After the design scheme was determined and approved by the enterprise, we carried out the transformation of the straight tube feeding port.

First, we customized the straight tube feeding port according to the designed parameters. The material of the straight tube is selected from high - strength and wear - resistant stainless steel, which can withstand the impact of plastic materials during feeding and is easy to clean, ensuring the service life and hygiene of the feeding port.

Then, the original funnel - shaped feeding port was removed, and the straight tube feeding port was installed in the corresponding position. During the installation process, we paid special attention to the tightness of the connection between the straight tube and the crushing chamber to prevent material leakage.

Finally, we debugged the transformed plastic crusher. We tested the feeding situation with different sizes and types of plastic materials, adjusted the position of the baffle appropriately, and ensured that the feeding was smooth and there was no splashing of crushed fragments.

The Effect of Using the Straight Tube Feeding Port

After the transformation of the straight tube feeding port, the feeding effect of the plastic crusher has been significantly improved, bringing obvious benefits to the enterprise.

In terms of feeding efficiency, the straight tube feeding port completely solves the problem of material jamming. Large plastic pieces and bulk materials can enter the crushing chamber smoothly under the action of gravity. The feeding speed is increased by about 40% compared with before the transformation, and the crusher can work continuously with sufficient material supply, which greatly improves the crushing efficiency.

In terms of labor intensity, workers no longer need to use tools to push materials, which reduces their labor intensity. The occurrence of potential safety hazards caused by manual pushing is also avoided, and the safety of the production site is guaranteed.

In terms of cleaning and maintenance, the straight tube structure is easy to clean. Workers can directly use water or cleaning tools to clean the inner wall of the straight tube, which reduces the accumulation of plastic residues and ensures the hygiene of the production process. At the same time, the wear - resistant stainless steel material reduces the frequency of maintenance and replacement, saving maintenance costs for the enterprise.

In addition, the stable and smooth feeding also makes the operation of the crusher more stable, reduces the impact of uneven feeding on the equipment, and extends the service life of the crusher.

Conclusion

The design and transformation of the straight tube feeding port for the plastic crusher of this plastic processing enterprise fully proves that a reasonable feeding port structure is crucial to improving the efficiency and safety of the crushing production. By aiming at the actual feeding needs and problems, and adopting a simple and practical design scheme, we can effectively solve the feeding difficulties and bring tangible economic benefits to the enterprise. This case also provides a reference for other enterprises with similar plastic crusher feeding problems.