Internal mixer upper jacking bolt oil cylinder hydraulic control system

A technology of hydraulic control system and internal mixer, which is applied in the direction of fluid pressure actuation system testing, fluid pressure actuation system components, mechanical equipment, etc. It can solve the complex problems of on-site debugging, reduce energy consumption, reduce calorific value, The effect of improving work efficiency

Pending Publication Date: 2018-07-17
DALIAN HUARUI HEAVY IND GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, it is necessary to consider the type and communication between the upper bolt PLC and the main PLC of the internal mixer when using it, and the on-site debugging is complicated

Method used

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  • Internal mixer upper jacking bolt oil cylinder hydraulic control system
  • Internal mixer upper jacking bolt oil cylinder hydraulic control system

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Embodiment Construction

[0020] In order to make the technical solutions and advantages of the present invention more clear, the technical solutions in the embodiments of the present invention are clearly and completely described below in conjunction with the drawings in the embodiments of the present invention:

[0021] Such as Figure 1-Figure 2 The hydraulic control system of the upper bolt cylinder of the internal mixer is shown, and the specific scheme includes: a detection unit, a control unit and an actuator. The detection unit detects the speed signal information of the piston rod of the oil cylinder, the pressure signal information of the rodless cavity and the rod cavity, and the rotational speed information of the servo motor. According to the speed information of the piston rod of the oil cylinder, the pressure information of the rodless cavity and the rod cavity, and the rotational speed information of the servo motor, the control unit adopts the PID closed-loop control method to design t...

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Abstract

The invention discloses an internal mixer upper jacking bolt oil cylinder hydraulic control system. Signals of the movement speed of an oil cylinder piston rod, the pressure of two cavities of an oilcylinder, and the rotation speed of a servo motor are monitored in real time and are fed back to a programmable logic controller (PLC), logical operation is conducted through a built-in PID, an inputsignal of a servo drive is given, the rotation speed of the servo motor is controlled, meanwhile the set pressure of a proportional pressure valve arranged on a constant pressure variable pump is controlled, finally closed-loop control of the speed of the internal mixer upper jacking bolt and the pressure of a pressing weight is achieved, namely rising, falling and pressurization of the upper jacking bolt and the working process of a floating weight are monitored and adjusted in real time, energy consumption is reduced to a great extent, and system work efficiency is improved. The rotation speed of the servo motor is controlled by the servo drive, then the output flow of the constant pressure variable pump is adjusted to adapt to system requirements, overflow loss is reduced maximally, system throttling loss is reduced, and the oil calorific value is lowered.

Description

technical field [0001] The invention relates to the field of working state control of an internal mixer, in particular to a hydraulic control system for an upper bolt oil cylinder of an internal mixer. Background technique [0002] The internal mixer is the main equipment used in the mixing, processing and production of rubber products. It is mainly composed of a mixing room, a feeding and pressing device, a discharging device, and a transmission device. As the core part of the internal mixer, the top bolt is mainly used to provide stable pressure to the rubber in the mixing chamber through the weight installed on the top bolt, and the weight is required to change with the volume of the rubber. The main action process includes the rising of the upper jack bolt, the lowering of the upper jack bolt, pressurization, floating weight and so on. The control methods of the upper jack mainly include pneumatic and hydraulic methods. In the early days of the internal mixer, pneumati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B21/08F15B19/00F15B11/08
CPCF15B11/08F15B19/00F15B21/087
Inventor 王静郭志民杨京兰陈强崔宇卓
Owner DALIAN HUARUI HEAVY IND GRP CO LTD
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