Frequency transformer and injection moulding machine, and control method of frequency transformer to injection moulding machine
A control method and frequency converter technology, applied in the control of the frequency converter to the injection molding machine, the frequency converter and the injection molding machine field, can solve the problem that the frequency converter cannot satisfy the high pressure, low flow and low pressure mold protection at the same time.
Inactive Publication Date: 2005-07-20
上海神源电气有限公司
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Problems solved by technology
[0003] The technical problem to be solved by the present invention is to provide a frequency converter, an injection molding machine, and a method for controlling the injection molding machine by the frequency converter, aiming at solving the problem that the current control of the injection molding machine by the frequency converter cannot meet the requirements of high pressure and low flow, low pressure and high flow, and low pressure at the same time. Defects of mold insurance
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[0024] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments:
[0025] by figure 1 It can be seen that the frequency converter of the present invention includes a control unit 1, a first receiving unit 2, a computing unit 3, a driving unit 4, and a second receiving unit 5; a first receiving unit 2, a computing unit 3, a driving unit 4, and a second receiving unit 5; The second receiving unit 2 is under the control of the control unit 1, and the first receiving unit 2 and the second receiving unit 5 respectively receive signals from the signal converter, and control the motor of the injection molding machine through the arithmetic unit 3 and the drive unit 4.
[0026] It can be seen from Fig. 2 that the injection molding machine of the present invention includes a frequency converter 11 and a signal converter 12; the signal converter 12 receives the proportional pressure signal and the proportional flow signal fro...
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The present invention relates to a frequency converter and injection moulding machine, and a method for utilizing frequency converter to control injection moulding machine. Said invented injection moulding machine include sthe frequency converter and signal converter, the described signal converter can be used for receiving proportional pressure signal and proportional flow signal transferred by PLC programmable controller in injection moulding machine, and utilizing conversion to input said two signals into the described frequency converter, then the frequency converter can be used to control the motor in the injection moulding machine.
Description
Technical field [0001] The invention relates to an injection molding machine, in particular to a frequency converter, an injection molding machine, and a method for controlling the injection molding machine by the frequency converter. Background technique [0002] At present, in order to save energy in the injection molding industry, manufacturers generally use additional (equipped) inverters to achieve this requirement. In the process of using inverters for control, the control signal generally uses one signal input, or pressure signal, Either the flow signal. When the injection molding machine is in production, there are several processes that require high pressure and low flow, low pressure and high flow, and low pressure mold protection. Since the input of the frequency converter is often connected to the flow signal output end of the injection molding machine, it can meet the requirements of low pressure, high current and low pressure mold protection. However, when high pres...
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IPC IPC(8): B29C45/76
Inventor 胡新宇顾红兵
Owner 上海神源电气有限公司