Based on the gas-liquid pressure-boosting die-cutting machine pressure monitoring and controlling device of virtual instrument
Technical field
The present invention relates to a kind of pressure monitoring and controlling device of die-cutting machine, particularly relate to a kind of die-cutting machine pressure monitoring and controlling device based on virtual instrument.
Background technology
D ie cutting press is the important parameter of die-cutting machine service behaviour, and traditional die cutting mechanism part is wide in variety, and the adjustment of d ie cutting press is inaccurate, can not carry out Based Intelligent Control.As China Patent Publication No. be CN202062702U, name is called and it discloses the utility model of " a kind of die cutting mechanism with die cutting pressure test device " a kind of die cutting mechanism with die cutting pressure test device, comprise supporting mechanism; Be fixed on the upper mounting plate of described supporting mechanism upper end; To be positioned under described upper mounting plate and the moving platform slided on described supporting mechanism; And to be supported by described supporting mechanism and to connect the gas-liquid supercharged driving device bottom described moving platform; At the hydraulic pressure input of described gas-liquid supercharged driving device, pressure sensor is installed; The outer Bonding pressure calculation display of pressure sensor, calculation of pressure display can the driving force of real-time testing gas-liquid supercharged driving device, and is shown the d ie cutting press of die cutting mechanism in real time by display unit, and then accurately can control pressure exerting arrangement force.The core of the driving mechanism of the die cutting mechanism of this band die cutting pressure test device is gas liquid pressurization system, the reciprocating motion of executing agency is completed by the control loop of pneumatic system, the pressure of system idle stroke and supercharging stroke and the manual adjustment of speed can be realized, solve existing die cutting mechanism be not easy to test d ie cutting press, cause the mould-cutting precision of die cutting mechanism not high, be unsuitable for problem that die cutting mechanism is accurately controlled, but, it can't realize digitlization and the automation of pressure regulation process, can not real time record and process experimental data.
Summary of the invention
Object of the present invention is exactly to overcome above-mentioned the deficiencies in the prior art, a kind of gas-liquid pressure-boosting die-cutting machine pressure monitoring and controlling device based on virtual instrument is provided, it can adjust cross cutting speed, automatic adjustment d ie cutting press, realizes the digitlization of d ie cutting press adjustment process, automation and visual.
For realizing above-mentioned purpose of the present invention, the gas-liquid pressure-boosting die-cutting machine pressure monitoring and controlling device based on virtual instrument of the present invention comprises: gas-liquid pressure-boosting die-cutting machine; Be arranged on the testing agency on gas-liquid pressure-boosting die-cutting machine; The data collecting system be connected with testing agency; The virtual instrument parametric controller be connected with data collecting system, it can receive and process the information of pressure that data collecting system transmits and displacement, and sends relevant control instruction; The Servocontrol device be connected with virtual instrument parametric controller, the executive component that its control instruction sent according to virtual instrument parametric controller controls in gas-liquid pressure-boosting die-cutting machine carries out corresponding action.
Wherein, described gas-liquid pressure-boosting die-cutting machine comprises: supporting construction; Be fixed on the upper mounting plate of supporting construction upper end; Slide on the support structure and be positioned at the lower platform below upper mounting plate; The gas-liquid pressure-boosting mechanism supported by supporting construction, this gas-liquid pressure-boosting mechanism comprises: working cylinder pass with by working cylinder top and with the drive rod be connected bottom described lower platform, wherein working cylinder is connected with pressurized cylinder with precompression cylinder respectively by pipeline.
Wherein, described testing agency comprises: the displacement transducer being arranged on upper mounting plate lower end, for detecting the position of upper mounting plate and lower platform to carry out the adjustment of cross cutting speed; Be arranged on the pressure sensor of upper mounting plate lower end, for detecting the d ie cutting press of die-cutting rule and impression steel wire in gas-liquid pressure-boosting die-cutting machine.
Wherein, described virtual instrument parametric controller comprises: the information transmitted testing agency carries out the computer of data analysis, process and storage; For carrying out the control unit of signal analysis and feedback; For carrying out data display and the display translation unit exported; The interface operation unit controlled is operated for carrying out.
Wherein, described Servocontrol device comprises: the pressure-control valve being located at the air inlet of described precompression cylinder and pressurized cylinder, and it is connected with described control unit and automatically can regulates the admission pressure of described precompression cylinder and pressurized cylinder according to the dependent instruction of control unit; Be located at successively and connect described precompression cylinder and ducted first magnetic valve of working cylinder and first throttle valve, be respectively used to carry out the control of import/exhaust conversion and the size of adjusting gas flow; Be located at successively and connect described pressurized cylinder and ducted second magnetic valve of working cylinder and second throttle, be respectively used to carry out the conversion and control of import/exhaust and the size of adjusting gas flow; Be arranged on the pressure servo valve of the hydraulic pressure input of working cylinder, it is built with pressure sensor, for detecting and the ducted pressure of hydraulic control.
Further, described Servocontrol device also comprises the time relay for automatically regulating the dwell time.
Particularly, amplifilter is provided with between described pressure sensor and data collecting system.
Further, A/D converter is provided with between institute's displacement sensors and data collecting system.
Preferably, described executive component comprises precompression cylinder, pressurized cylinder and working cylinder.
Preferably, described supporting construction comprises: lower support frame; Be installed in a pair wallboard of lower support frame both sides, wherein, described upper mounting plate is fixedly arranged on the top of a pair wallboard; To be fixedly arranged between a pair wallboard and near the upper support frame of lower support frame, and described working cylinder is fixedly arranged on upper support frame.
Compared with prior art, the gas-liquid pressure-boosting die-cutting machine pressure monitoring and controlling device based on virtual instrument of the present invention has following beneficial effect:
1) upper mounting plate of gas-liquid pressure-boosting die-cutting machine of the present invention is provided with displacement transducer, and it detects the relative position of upper mounting plate and lower platform, thus controls the pressure of pneumatic system, reaches the object adjusting cross cutting speed;
2) upper mounting plate of gas-liquid pressure-boosting die-cutting machine of the present invention is provided with pressure sensor, and it can detect the d ie cutting press of die-cutting rule and impression steel wire in gas-liquid pressure-boosting die-cutting machine in real time;
3) mouth of pipe place of gas-liquid pressure-boosting die-cutting machine of the present invention is provided with servo valve, is provided with pressure sensor in servo valve, can pressure in real time in detection and control oil pipe;
4) data collecting system of the present invention is connected with pressure sensor with displacement transducer, can gather displacement, pressure signal transmitting signal in real time;
5) virtual instrument parametric controller of the present invention has computer and control unit, can receive and process the information of pressure and the displacement transmitted through data collecting system, signal analysis is fed back simultaneously;
6) executive component that Servocontrol device of the present invention controls gas liquid pressurization system according to the signal that virtual instrument parametric controller feeds back carries out action, thus realizes the adjustment to d ie cutting press;
7) virtual instrument parametric controller of the present invention also has display translation unit and interface operation unit, can be respectively used to carry out the control of data display, output and operation, thus the real time record achieved d ie cutting press and process, and achieve digitlization and the automation of pressure regulation process.
Below in conjunction with accompanying drawing, the present invention is described in detail.
Accompanying drawing explanation
Fig. 1 is the structural representation of the gas-liquid pressure-boosting die-cutting machine pressure monitoring and controlling device based on virtual instrument of the present invention;
Fig. 2 is the control principle drawing of the gas-liquid pressure-boosting die-cutting machine pressure monitoring and controlling device based on virtual instrument of the present invention.
Reference numeral: 1, wallboard; 2, upper mounting plate; 3, lower platform; 4, guide pad; 5, drive rod; 6, upper support frame; 7, working cylinder; 8, lower support frame; 9, pressure servo valve; 10,12, choke valve 15,18, pressure-control valve; 13, the first magnetic valve; 14, the second magnetic valve; 16, cylinder pressure; 17, precompression cylinder; 19 oil pipes; 20, displacement transducer; 21, virtual instrument parametric controller; 22, the time relay; 23, pressure sensor.
Detailed description of the invention
As shown in Figure 1, the gas-liquid pressure-boosting die-cutting machine pressure monitoring and controlling device based on virtual instrument of the present invention, it comprises: gas-liquid pressure-boosting die-cutting machine; Be arranged on the testing agency on gas-liquid pressure-boosting die-cutting machine; The data collecting system be connected with testing agency; The virtual instrument parametric controller 21 be connected with data collecting system, it can receive and process the information of pressure that data collecting system transmits and displacement, and sends relevant control instruction; The Servocontrol device be connected with virtual instrument parametric controller 21, the executive component that its control instruction sent according to virtual instrument parametric controller 21 controls in gas-liquid pressure-boosting die-cutting machine carries out corresponding action.
Concrete, as shown in Figure 1, gas-liquid pressure-boosting die-cutting machine comprises: supporting construction, its by lower support frame 8, be installed in lower support frame 8 both sides a pair wallboard 1, to be fixedly arranged between a pair wallboard 1 and upper support frame 6 near lower support frame 8 forms, wherein, upper mounting plate 2 is fixedly arranged on the top of a pair wallboard 1, and working cylinder 7 is fixedly arranged on upper support frame 6; Be fixed on the upper mounting plate 2 of supporting construction upper end; Slide on the support structure and be positioned at the lower platform 3 below upper mounting plate 2; The gas-liquid pressure-boosting mechanism supported by supporting construction, this gas-liquid pressure-boosting mechanism comprises: working cylinder 7 pass with by working cylinder 7 top and with the drive rod 5 be connected bottom lower platform 3, wherein working cylinder 7 is connected with pressurized cylinder 16 with precompression cylinder 17 respectively by pipeline.
Gas-liquid pressure-boosting die-cutting machine is provided with testing agency, and it comprises: the displacement transducer 20 being arranged on upper mounting plate 2 lower end, for detecting the relative position of upper mounting plate and lower platform to carry out the adjustment of cross cutting speed; Be arranged on the pressure sensor of upper mounting plate lower end, for detecting the d ie cutting press of die-cutting rule and impression steel wire in gas-liquid pressure-boosting die-cutting machine; And, amplifilter is provided with between pressure sensor and data collecting system, A/D converter is provided with between displacement transducer and data collecting system, thus information displacement transducer and pressure sensor transmitted passes to virtual instrument parametric controller 21 through data collecting system, this virtual instrument parametric controller 21 sends relevant control instruction to coupled Servocontrol device, and these three executive components of precompression cylinder 17, pressurized cylinder 16 and working cylinder 7 that Servocontrol device controls in gas-liquid pressure-boosting die-cutting machine carry out corresponding action.
As shown in Figure 2, virtual instrument parametric controller 21 of the present invention comprises: the information transmitted testing agency carries out the computer of data analysis, process and storage; For carrying out the control unit of signal analysis and feedback; For carrying out data display and the display translation unit exported; The interface operation unit controlled is operated for carrying out.This virtual instrument parametric controller 21 to be adjusted controling parameters fast by LabVIEW interface, draw system responses curve, complete control pressurer system static and dynamic c haracteristics to demarcate, by setting up the Mathematical Modeling of gas liquid pressurization system pressure and actual die cutting operation pressure function mapping relations, determine d ie cutting press control algolithm, thus realizing the pressure detecting of die-cutting process course of exerting pressure and Stress control, display, preservation, controling parameters such as to arrange at the function.
Control unit in virtual instrument parametric controller 21 is by the signal feedback after analysis to Servocontrol device, and its executive component controlled in gas-liquid pressure-boosting die-cutting machine according to received control instruction carries out corresponding action.This Servocontrol device comprises: the pressure-control valve 18,15 being located at the air inlet of precompression cylinder 17 and pressurized cylinder 16, and it is connected with control unit and automatically can regulates the admission pressure of precompression cylinder 17 and pressurized cylinder 16 according to the dependent instruction of control unit; Be located at successively and connect precompression cylinder 17 and ducted first magnetic valve 13 of working cylinder 7 and first throttle valve 10, be respectively used to carry out the control of import/exhaust conversion and the size of adjusting gas flow; Be located at successively and connect pressurized cylinder 16 and ducted second magnetic valve 14 of working cylinder 7 and second throttle 12, be respectively used to carry out the conversion and control of import/exhaust and the size of adjusting gas flow; Be arranged on the pressure servo valve 9 of the hydraulic pressure input of working cylinder 7, it is built with pressure sensor, for the pressure in detection and control conduit under fluid pressure.
In addition, Servocontrol device also comprises the time relay for automatically regulating the dwell time.
Although be explained in detail the present invention above; but the present invention is not limited thereto; those skilled in the art can principle according to the present invention modify, and therefore, all various amendments carried out according to principle of the present invention all should be understood to fall into protection scope of the present invention.