Vibrators for vertical vibration machines for concrete pipes
The vertical vibrating concrete pipe machine uses semi-dry concrete as inert, the mandrel vibrator and the inner mould vibrate together to form the pipe vertically. Inside the vibrator, which is on the inside, is an eccentric block. These blocks rotate at a high frequency to create vibrations, and the vibration force is transmitted to the concrete via internal shapes.
In a vertical vibration machine, there are 3-4 eccentric beams together with a vertical shaft. The vibratory force generated by the rotation of the rectangular block against the axis of the concrete pipe. This force is an oscillation from the circumference, like a vibrator, whose diameter is equal to the inner diameter of the pipe, oscillating continuously and forming concrete.
This process is carried out by a machine to reduce the adhesive properties, internal friction, and gripping force of the mixed concrete particles. Along with all of this, it also helps shape the feed structure and compacts the concrete to a high-density level for the strength and other specifications expected.
During the production process, when adding concrete, the pipes are sealed by vibration forces. The top end of the pipe is made by the vibratory force and hydraulic compressive force of the plate to form a joint. Helps provide good density, greater strength, and good dimensional accuracy to the top of the pipe.
Moulds can be removed vertically after manufacture without drying. Concrete pipes can settle earlier than the original installation and are prone to deformity, especially at the top of the pipe. Therefore, we must strictly adhere to production technology to ensure that the finished pipe can withstand gravity and the deformation is not greater than the allowable deviation. To ensure the accuracy of the top of the concrete pipe, it must be protected with a steel or fibreglass collector during the natural drying process.