Servo hydraulic-control tire formation machine

Abstract

The invention relates to a servo hydraulic-control tire formation machine. The servo hydraulic-control tire formation machine is characterized in that the end of a formation machine spindle (16) is provided with a rotation connector (12) and a hydraulic distributor (13), all parts of the formation machine are subjected to servo hydraulic-control, a pressure sensor is arranged in an oil cylinder, and a servo hydraulic station (11) is controlled by a servo motor. A PLC (10) gives two paths of analog quantity 0-10V signals, one path is a pressure command, and the other path is a rotation speed command. A servo system performs closed-loop control over the pressure and rotation speed of the system through the received signals and feedback of the pressure sensor and a rotary encoder, in cooperation with a high-efficiency internal meshing gear pump, a control valve provides a power source for the oil cylinder, in cooperation with the pressure sensor arranged in the oil cylinder, the speed iscontrolled to be progressively increased or decreased when the air cylinder moves, so that all actions of overall tire formation machine equipment are soft, no impact is generated during action switching, and accordingly the service life of the machine is prolonged.

Description

technical field [0001] The invention relates to a tire building machine, in particular to an improvement of a tire building machine control device. Background technique [0002] Most of the existing tire building machines are driven by motors. The noise caused by the motor drive is not as stable as that of the hydraulic transmission, and the energy conversion is not as high as the hydraulic transmission. The ordinary hydraulic transmission device, because the motor runs at the rated speed to drive the oil pump, the system The pressure is controlled by the relief valve, and the excessive pressure is relieved, which is a continuous and constant high-energy consumption operation mode. The continuous operation of the relief valve will generate oil temperature, and it is necessary to increase the cooler and use cooling water to circulate and cool down; hydraulic standby There will be a certain amount of noise during operation, and the noise will be louder under high pressure; the...

AI Technical Summary

Problems solved by technology

[0002] Most of the existing tire building machines are driven by motors. The noise caused by the motor drive is not as stable as that of the hydraulic transmission, and the energy conversion is not as high as the hydraulic transmission. The ordinary hydraulic transmission device, because the motor runs at the rated speed to drive the oil pump, the system The pressure is controlled by the relief valve, and the excessive pressure is relieved, which is a continuous and constant high-energy consumption operation mode. The continuous operation of the relief valve will generate oil temperature, and it is necessary to increase the cooler and use cooling water to circulate and cool down; hydraulic standby There will be a certain amount of noise, and the noise will be louder under high pressure; there will be a certain impact when the action is switched, which will loosen the fastening screws of the equipment for a long time, requiring frequent maintenance and reinforcement screws.

Due to the cooperation with oil temperature control, a large amount of hydraulic oil is required

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