CN201736470U - Oil press energy-saving control device - Google Patents

Abstract

The utility model relates to an oil press energy-saving control device. An oil pump and a control motor pivoted with the oil pump are arranged on the device body. The connection of the oil pump and a mechanical assembly on the device body is controlled by a control valve assembly. A frequency converter and a logic controller are arranged on the device body. The frequency converter is connected with the control motor, and connected with the logic controller by a signal conversion module. The logic controller is also connected with the control valve assembly, so the control valve assembly realizes logic control. The utility model has the benefits that logic signals are converted by the logic controller through the signal conversion module, and the logic signals are converted into data capable of being collected and analysed by the frequency converter, so the control motor can be intelligently controlled by the frequency converter according to oil press different stages; energy saving purposes are realized, and power consumption is effectively reduced.

Description

The hydraulic press energy-saving control device

Technical field

The utility model relates to a kind of hydraulic press control device, is specifically related to a kind of pressure according to mechanical component, oil pressure process realize Energy Saving Control to hydraulic press hydraulic press energy-saving control device.

Background technology

Hydraulic press machine is that hydraulic press is a kind of cyclical movement load equipment, a complete work period comprises blowing, F.F., slow-motion, rise and press, pressurize, off-load, backhaul, get the stages such as material, pressure that its each stage is required and flow all are different, but prior oil pressure machine, as long as machine is opened, which stage, no matter processed material was what shape and machine was in, its control motor all can turn round according to the peak load of hydraulic press, for example: 1), the traditional oils press be constant displacement pump, because the unadjustable output flow of constant displacement pump, therefore unnecessary energy can only be at baffle plate, and oil circuit is revealed, and consumes in the oily temperature rise, the wearing and tearing of various valves have been aggravated, cause oil temperature too high again, motor noise is excessive, and phenomenon such as shortening mechanical life; 2), hydraulic press when work, maximum when slow-motion control motor and oil pump and loaded during the stage, and the backhaul stage is less, and other stage loads are almost nil, hydraulic press all turned round with peak load in each stage, will cause the phenomenon of " low load with strong power ", caused waste of energy.

The utility model content

The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art part, and provide a kind of hydraulic press energy-saving control device simple and reasonable for structure, by energy-saving control device is installed on the fuselage, make the control motor carry out the automated intelligent adjusting according to different phase and different loads with the control valve assembly, realize energy-conservation purpose, effectively reduce electric energy loss.

The technical scheme that its technical problem that solves the utility model adopts is:

The hydraulic press energy-saving control device, comprise oil pump on the fuselage and drive the control motor that connects with oil pump, pass through control valve assembly control connection between the mechanical component on oil pump and the fuselage, its design feature is: described fuselage is provided with frequency converter and logic controller, frequency converter is connected with the control motor, and be connected with logic controller by signal conversion module, described logic controller also is connected with the control valve assembly, makes the control valve assembly realize logic control.Logic controller is changed logical signal by signal conversion module, converts that frequency converter can be gathered, analyzable data to, thereby makes frequency converter carry out Based Intelligent Control to the control motor according to the hydraulic press different phase; Simultaneously, logic controller also can carry out intelligence according to the different operating stage according to the control valve assembly to be regulated, and realizes energy-conservation purpose, effectively reduces electric energy loss.

As embodiment more specifically, described signal conversion module is an analog output module, and the conversion of the logical order parameter in the logic controller is output into the analog quantity that frequency converter can be discerned deciphering.

Described signal conversion module in the actual installation work, should be decided according to the frequency converter interface control mode except analog output module, also can adopt RS485, and signal conversion module such as network interface are transmitted.

Described logic controller is the PLC Programmable Logic Controller.

Described fuselage is provided with power input, and the also external energy-saving appliance that is equipped with makes energy-saving effect better before power input.

Also be circumscribed with touch-screen on the described fuselage, touch-screen is electrically connected with logic controller, handled easily person control, intuitive and convenient.

The beneficial effects of the utility model are:

Adopt hydraulic press energy-saving control device of the present utility model, on the basis that does not change original hydraulic press frame for movement, logic controller is changed logical signal by signal conversion module, convert that frequency converter can be gathered, analyzable analog data to, thereby make frequency converter carry out Based Intelligent Control to the control motor according to the hydraulic press different phase; Simultaneously, logic controller also can carry out intelligence according to the different operating stage according to the control valve assembly to be regulated, and realizes energy-conservation purpose, effectively reduces electric energy loss, saves electric energy and reaches more than 20%; Moreover control motor and valve assembly real work amount reduce, and its life-span also improves thereupon, reduce the complete machine maintenance cost.

Description of drawings

Fig. 1 is a theory diagram of the present utility model.

The specific embodiment

Below in conjunction with drawings and Examples the utility model is further specified.

Show as Fig. 1, the hydraulic press energy-saving control device, comprise oil pump on the fuselage and drive the control motor that connects with oil pump, pass through control valve assembly control connection between the mechanical component on oil pump and the fuselage, described fuselage is provided with frequency converter and PLC Programmable Logic Controller, frequency converter is connected with the control motor, be connected with the PLC Programmable Logic Controller by signal conversion module in addition, the conversion of logical order parameter in the PLC Programmable Logic Controller is output into the signal that frequency converter can be discerned deciphering, described PLC programmable logic controller (PLC) also is connected with the control valve assembly, makes the control valve assembly realize logic control.On the basis that does not change original hydraulic press structure, effectively reduce electric energy loss, save electric energy and reach more than 20%; Moreover control motor and valve assembly real work amount reduce, and its life-span also improves thereupon, reduce the complete machine maintenance cost.

As embodiment more specifically, described signal conversion module is an analog output module, and the conversion of the logical order parameter in the logic controller is output into the analog quantity that frequency converter can be discerned deciphering.

Described signal conversion module in the actual installation work, should be decided according to the frequency converter interface control mode except analog output module, also can adopt RS485, and signal output module such as network interface are transmitted.

In order to realize better implementation result, described fuselage is provided with power input, and the also external energy-saving appliance that is equipped with makes energy-saving effect better between fuselage power input and external power source.

The operator uses for convenience, also is circumscribed with touch-screen on the described fuselage, and touch-screen is electrically connected with logic controller, handled easily person control, intuitive and convenient.

Operation principle: power-on, put into machined material, press start button (both hands button) start-up control motor, controlling motor this moment just turns round, mechanical component enters fast forward stage, set according to the PLC Programmable Logic Controller, when machine is received worker's inlet signal, mechanical component begins to enter the slow-motion stage, play pressure then, pressurize, in pressure maintaining period, the PLC Programmable Logic Controller can be provided with dwell time numerical value as required, when dwell time numerical value is set greater than rating number, the PLC Programmable Logic Controller converts signal to analog quantity that frequency converter can be discerned deciphering by analog output module, frequency converter slows down to the control motor or shuts down, after pressurize is finished, last off-load, backhaul, get material, put into new machined material then, because needed pressure of backhaul and flow-rate ratio are less, so, the backhaul stage, frequency converter can be by frequency reducing, reduce motor speed, reduce the waste of motor output, get material, put into 1/2nd to 2/3rds times that this two stages of virgin material account for whole work period, during this period of time, the frequency converter of the utility model energy saver can be controlled motor for shutting down, save not should loss the power energy consumption, reach energy-conservation purpose.

Claims (7)

1. hydraulic press energy-saving control device, comprise oil pump on the fuselage and drive the control motor that connects with oil pump, pass through control valve assembly control connection between the mechanical component on oil pump and the fuselage, it is characterized in that: described fuselage is provided with frequency converter and logic controller, frequency converter is connected with the control motor, and frequency converter also is connected with logic controller by signal conversion module, and described logic controller also is connected with the control valve assembly, makes the control valve assembly realize logic control.

2. according to the described hydraulic press energy-saving control device of claim 1, it is characterized in that described signal conversion module is an analog output module, the conversion of the logical order parameter in the logic controller is output into the analog quantity that frequency converter can be discerned deciphering.

3. according to the described hydraulic press energy-saving control device of claim 1, it is characterized in that described signal conversion module is the RS485 output module.

4. according to the described hydraulic press energy-saving control device of claim 1, it is characterized in that described signal conversion module is the network interface output module.

5. according to claim 1 or 2 described hydraulic press energy-saving control devices, it is characterized in that described logic controller is the PLC Programmable Logic Controller.

6. according to the described hydraulic press energy-saving control device of claim 1, it is characterized in that described fuselage is provided with power input, the also external energy-saving appliance that is equipped with before power input.

7. according to the described hydraulic press energy-saving control device of claim 1, it is characterized in that also be circumscribed with touch-screen on the described fuselage, touch-screen is electrically connected with logic controller.

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