Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Control device and mothod for raising injection moulding machine production efficiency based on energy-saving frequency change speed regulator

A frequency conversion speed regulator and production efficiency technology, applied in the field of injection molding machines, can solve the problems of short cycle time of injection molding machines, reduced production efficiency, increase of production cycle time of injection molding machines, etc., to ensure process requirements and production efficiency, eliminate The effect of reducing production efficiency and ensuring rapid response capability

Inactive Publication Date: 2005-03-23
深圳市珊星电脑有限公司
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The frequency converter usually adjusts the operating frequency of the motor by sampling the flow rate and pressure output current of the computer of the injection molding machine, but it will cause a delay in the speed response of the switching of each process section of the injection molding machine, prolonging the product production cycle, because after the injection molding machine is equipped with a frequency converter, the main The motor speed changes with the speed of each process section of the injection molding machine. The cycle time of the injection molding machine's working cycle is relatively short, and the frequent switching of each process section causes the main motor to be in the process of acceleration and deceleration frequently. The acceleration and deceleration of the motor has a certain response time. The acceleration response time of each process section switching is determined by the acceleration response time of the motor, which is generally several hundred milliseconds, while the acceleration response time of each process section switching before the installation of a frequency converter is determined by the flow valve response time, which is generally tens of milliseconds, resulting in The speed response time of each process section switching is prolonged, which increases the production cycle time of the injection molding machine and reduces the production efficiency

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Control device and mothod for raising injection moulding machine production efficiency based on energy-saving frequency change speed regulator
  • Control device and mothod for raising injection moulding machine production efficiency based on energy-saving frequency change speed regulator
  • Control device and mothod for raising injection moulding machine production efficiency based on energy-saving frequency change speed regulator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0032] Fig. 1, Fig. 2 are two kinds of realization forms of the present invention respectively, shown in the figure is a kind of control device based on the energy-saving variable frequency speed regulator to improve the production efficiency of injection molding machine, the control device in the present invention is called signal acquisition here Processing device, the control device is used to receive the process parameters and working status signals of the injection molding machine, calculate the frequency control signal value Fx of the frequency converter in each process section and the acceleration time point Sx of the motor in advance, and output the frequency control signal to the motor connected to the injection molding machine A frequency converter to control the running speed of the motor;

[0033] The control device can be integrat...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A control device and method based on energy-saving frequency-varying speed regulator for increasing the productivity of injection moulding machine features that a lead time of motor acceleration for switching from one step to next step is given out by the frequency-varying device to eliminate the time delay.

Description

technical field [0001] The present invention relates to an injection molding machine, specifically a control device and method for effectively saving energy by eliminating the speed response delay time of the switching of each process section of the injection molding machine brought by a frequency converter without reducing the productivity of the injection molding machine. Background technique [0002] In the traditional injection molding industry, the three-phase asynchronous AC motor usually used in the injection molding machine cannot change the speed, and the flow rate of the hydraulic oil output by the quantitative pump driven by it cannot be changed. When the injection molding machine is operating at a low speed, the excess flow flows through the relief valve. Back to the fuel tank, causing a large loss of energy. [0003] An improved injection molding machine is to add a frequency converter on the basis of its original equipment to meet the r...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/76
Inventor 方智群丁水保
Owner 深圳市珊星电脑有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products