Plastic sheet shredder

The following is a detailed introduction to the plastic sheet shredder:

Structural composition

- Blade system: A combination of a moving blade and a fixed blade, usually made of alloy steel or special wear-resistant materials. The moving blade is installed on the rotating shaft, and the fixed blade is fixed inside the shredder box. The shape, size and number of the blades are designed according to the characteristics of different plastic sheets and the shredding requirements. For example, for thicker plastic sheets, larger, thicker and sharper blades may be used.

- Knife shaft component: It is a key component that supports and drives the blade to rotate. It is generally made of high-quality steel and has sufficient strength and rigidity to withstand the huge torque and impact generated during the shredding process. The speed of the knife shaft is usually low, generally between tens and hundreds of revolutions per minute, so as to achieve high-torque shredding of plastic sheets.

- Feeding device: includes a feed hopper and a feed conveying mechanism. The design of the feed hopper is usually large and spacious to facilitate the smooth entry of plastic sheets of different sizes. The feed conveying mechanism can be in the form of a conveyor belt, a screw pusher or a scraper to ensure that the plastic sheets can enter the shredder stably and evenly.

- Power system: mainly composed of motor and reducer. The motor provides power for the shredder, and the reducer converts the high-speed rotation of the motor into the low-speed and high-torque rotation required by the knife shaft, so that the blade can effectively shred the plastic sheet. The power of the motor depends on the model and processing capacity of the shredder, generally ranging from a few kilowatts to tens of kilowatts.

- Crushing box: It is welded with high-strength steel plates, has good sealing and firmness, can withstand the impact and pressure generated during the shredding of plastic sheets, prevent material splashing and protect the safety of operators. Liners may also be set inside the box to reduce the wear of the blade on the box and reduce noise.

- Discharging system: Located at the bottom or side of the shredder, it is usually equipped with a discharging conveyor belt, a discharging scraper or a discharging port, etc., to transport the shredded plastic sheet fragments to a designated location for subsequent collection, transportation and reprocessing. Some discharging systems can also adjust the discharging speed and discharging direction as needed.

Working principle

Plastic sheet shredders mainly rely on the shearing, tearing and squeezing of blades to shred plastic sheets. When the plastic sheet enters the shredder's crushing box through the feeding device, the rotating moving knife and the fixed fixed knife intersect with each other to form a strong shear force. As the knife shaft continues to rotate, the plastic sheet is continuously cut and torn into smaller pieces under the action of the blade. At the same time, due to the low rotation speed and large torque of the knife shaft, the plastic sheet will also be squeezed by the blade during the shredding process, making the fragments more uniform and fine. During the shredding process, the fragments of the plastic sheet will gradually fall and be discharged from the shredder through the discharging system.

Performance characteristics

- Efficient shredding capacity: With powerful power and reasonable blade design, it can quickly and effectively shred plastic sheets of various thicknesses and materials, greatly improving production efficiency and reducing processing time.

- Wide applicability: It can handle a variety of types of plastic sheets, such as polyethylene (PE) sheets, polypropylene (PP) sheets, polystyrene (PS) sheets, polyvinyl chloride (PVC) sheets, etc., and can also adapt to plastic sheets of different shapes and sizes, including waste plastic pallets, plastic pads, plastic building templates, etc.

- Stable and reliable operation: The structure is reasonably designed, the key components are made of high-quality materials and advanced manufacturing technology, the equipment is sturdy and durable, the noise is low and the vibration is small during operation, it has high stability and reliability, can operate continuously for a long time, and reduce equipment failures and maintenance costs.

- Perfect safety protection measures: It is equipped with a variety of safety protection devices, such as overload protection, emergency stop button, protective door, etc., to ensure the safety of operators. When the equipment is overloaded, vibrates abnormally or other faults occur, it can automatically shut down in time to avoid equipment damage and safety accidents.

- Good environmental protection and energy saving effect: During the shredding process, due to the low speed and high torque design, the energy consumption is relatively low, and the noise and dust generated are less, which meets environmental protection requirements and reduces pollution to the environment.

Application field

- Plastic recycling industry: It is a key equipment for the recycling and reuse of waste plastic sheets. It can tear waste plastic sheets into smaller pieces, which can be used as raw materials for recycled plastic particles to produce new plastic products, improve the recycling rate of plastic resources, and reduce production costs.

- Plastic product manufacturers: used to process plastic sheet scraps and waste generated during the production process, which can be directly reused in production after being crushed, reducing the waste of raw materials, reducing production costs, and improving the economic benefits and resource utilization of enterprises.

- Packaging industry: It can shred discarded plastic packaging boards, plastic turnover boxes, plastic pallets, etc., which is convenient for subsequent recycling and reprocessing, reducing the pollution of packaging waste to the environment, and also provides a sustainable development model for the packaging industry.