Structure And Composition Of Plastic Granulator

The plastic granulator consists of a base, left and right wall panels, an electric motor, a transmission device, a pressing roller, a rolling cutter (cutting blade), a swinging cutter (granulating blade), a screening bucket and other components. The left and right wall panels are placed on the upper transmission device of the base, and the pressing roller, rolling cutter, and swinging knife are installed in the wall panels. The motor and screening bucket are installed in the base.
Transmission device: composed of pulleys, sprockets, and a series of gears, it transmits the rotation of the motor to the pressing roller, rolling cutter, swinging blade, and screening bucket to complete various actions. The transmission relationship is shown in the transmission system diagram.
transmission
Roller cutter (cutting blade): It consists of two sets of upper and lower roller cutters, among which the bearing seat of the upper roller cutter can move in the guide groove of the left and right plates. Rotate the two handwheels on the upper part of the machine to adjust the gap between the upper and lower rolling cutters to adapt to the cutting of plastic sheets of different thicknesses. The plastic sheet is rolled into plastic strips with a specified width by a rolling cutter.
Roll cutter (cutting blade)
Swing knife (granule cutter): Four swing knives are installed on the tool holder shaft, and a bottom knife (fixed knife) is installed between the left and right wall panels. The bottom knife and swing knife form a set of scissors to cut plastic strips into particles of a certain size. The position of the swing blade on the tool holder axis can be adjusted and fastened by screws, which can adjust the gap between the bottom blade and the swing blade. The gap must be adjusted to be qualified, usually 0.1mm, otherwise the cutting will not be sharp, affecting the appearance of the plastic particles, and in severe cases, the plastic strip will not be cut. When adjusting the swing blade, the gap between it and the bottom blade must be uniform and consistent. After adjusting appropriately, the fastening screws and locking nuts must be tightened to prevent loosening and accidents.
Swinging knife (cutting knife)
Pressure roller: composed of two upper and lower pressure rollers, installed between the rolling cutter and the swinging cutter. Springs and guide columns are installed at both ends of the upper pressure roller, which can move up and down along the sliding columns on the left and right wall panels to adapt to the feeding of plastic sheets of different thicknesses and maintain a certain degree of compression force. Its function is to feed the plastic strip cut from the rolling cutter into the swing cutter for cutting.
Pressure roller
Screen bucket: composed of a crankshaft and a screen bucket, driven by the crankshaft connecting rod to vibrate back and forth, and sieve qualified plastic particles into the container. The working process of the machine is as follows: the plastic sheet is fed into the feeding port, rolled into plastic strips by a rolling cutter, fed into a swinging knife by a pressing roller, and cut into particles of a certain specification by the swinging knife. The plastic particles are screened by a sieve bucket, and the qualified particles are sieved into a container, completing the cutting work of the plastic flat plate.