CN107942925A - Automatic control system for ceramic hot pressure casting forming - Google Patents
Automatic control system for ceramic hot pressure casting forming Download PDFInfo
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- CN107942925A CN107942925A CN201810021070.3A CN201810021070A CN107942925A CN 107942925 A CN107942925 A CN 107942925A CN 201810021070 A CN201810021070 A CN 201810021070A CN 107942925 A CN107942925 A CN 107942925A
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- upper mold
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- 239000000919 ceramic Substances 0.000 title claims abstract description 26
- 238000005266 casting Methods 0.000 title claims abstract description 24
- 239000002002 slurry Substances 0.000 claims abstract description 76
- 238000010438 heat treatment Methods 0.000 claims abstract description 41
- 238000004891 communication Methods 0.000 claims abstract description 11
- 230000001105 regulatory effect Effects 0.000 claims description 40
- 238000000465 moulding Methods 0.000 claims description 11
- 230000001276 controlling effect Effects 0.000 claims description 9
- 230000003028 elevating effect Effects 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 9
- 101100365087 Arabidopsis thaliana SCRA gene Proteins 0.000 claims description 8
- 101150105073 SCR1 gene Proteins 0.000 claims description 8
- 101100134054 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) NTG1 gene Proteins 0.000 claims description 8
- 238000004512 die casting Methods 0.000 claims description 7
- 230000001174 ascending effect Effects 0.000 claims description 4
- 230000000630 rising effect Effects 0.000 claims description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 3
- 230000009102 absorption Effects 0.000 claims description 3
- 238000010521 absorption reaction Methods 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- 238000001816 cooling Methods 0.000 description 9
- 101000668165 Homo sapiens RNA-binding motif, single-stranded-interacting protein 1 Proteins 0.000 description 6
- 102100039692 RNA-binding motif, single-stranded-interacting protein 1 Human genes 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000007493 shaping process Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 239000000498 cooling water Substances 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000007731 hot pressing Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 229920002472 Starch Polymers 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
- G05B19/054—Input/output
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/10—Plc systems
- G05B2219/11—Plc I-O input output
- G05B2219/1103—Special, intelligent I-O processor, also plc can only access via processor
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
Abstract
The invention discloses a kind of automatic control system for ceramic hot pressure casting forming, including：PLC controller, for jacking system, slurry heating system, slurry ramming system, temperature setting device, PLC controller is connected with jacking system, slurry heating system, slurry ramming system, temperature setting device communication respectively；Temperature setting device is used to the corresponding electric signal of the temperature value of setting inputting PLC controller；Slurry heating system is used to start to heat slurry under the control of PLC controller, and for exporting feedback signal when being heated to set temperature value to PLC controller；PLC controller is used for the feedback signal control jacking system that basis receives and starts to control upper mold to rise and control upper mold to drop to die-closed position after upper mold rises the scheduled time；PLC controller is used to control slurry ramming system to start when upper mold drops to die-closed position.The present invention improves the reliability of system.
Description
Technical field
The present invention relates to ceramic member injection moulding field, especially, is related to a kind of automatic control for ceramic hot pressure casting forming
System processed.
Background technology
Ceramic hot pressure casting forming machine is used to make ceramic member, its structure is substantially as in Patent No. 201620655548.4
Shown in Chinese invention patent, the slurry stencil plate being configured to is placed in magazine (barrel) by hot die-casting molding, is heated to
Certain temperature melts, and under the driving of compressed air, the slurry in barrel is pressed into die cavity by feeder sleeve, according to the shape of product
Shape and size keep after a certain period of time, removing pressure, and slurry is cooled and shaped in die cavity, is then demoulded, and takes out base substrate.
The raising of product quality requirement, temperature control precision and upper mold elevating control accuracy to slurry and mould and can
The requirement of higher is proposed by property.Existing hot die-casting molding machine control system uses relay-contactor control system and conventional instrument
Realize elevating control and the control of temperature level formula of mould, system reliability is not high, and temperature fluctuation is big, and constant voltage time is not allowed.
The content of the invention
The present invention provides a kind of automatic control system for ceramic hot pressure casting forming, to solve existing hot die-casting molding
Machine control using relay-contactor control system and conventional instrument realizes the elevating control of mould and the control of temperature level formula cause be
The not high technical problem of reliability of uniting.
The technical solution adopted by the present invention is as follows：
A kind of automatic control system for ceramic hot pressure casting forming, including：PLC controller, for driving hot pressing to cast
The jacking system of type machine upper mold elevating movement, for slurry is heated slurry heating system, for driving slurry to be pressed into
Slurry ramming system, the temperature setting device for input temp of mold die cavity, PLC controller respectively with jacking system, material
Starch heating system, slurry ramming system, temperature setting device communication connection；Temperature setting device is used for the temperature value pair of setting
The electric signal input PLC controller answered；Slurry heating system is used to start to add slurry under the control of PLC controller
Heat, and for exporting feedback signal when being heated to set temperature value to PLC controller；Jacking system starts to control in upper mold
Rise and control upper mold drops to die-closed position after upper mold rises the scheduled time；Slurry ramming system starts to drive slurry to be pressed into
Mold die cavity, and for controlling jacking system to start to control upper mold to rise after the scheduled time is molded.
Further, the cylinder that jacking system includes air compressor machine, is connected with air compressor machine by pipeline, air compressor machine pass through first
Switch is connected to power supply, and cylinder connects upper mold, is provided with pipeline for controlling cylinder moving and then driving upper mold elevating movement
Solenoid valve.
Further, jacking system further includes the gas receiver being connected with air compressor machine, the gas outlet of gas receiver is provided with and is used for
The first solenoid valve of gas release in gas receiver is controlled, gas receiver is connected to the epicoele of cylinder by the first pipeline, by second
Pipeline is connected to the cavity of resorption of cylinder, and the second solenoid valve for controlling the two to be opened and closed is provided with the first pipeline and the second pipeline,
First solenoid valve and second solenoid valve are further connected to PLC controller.
Further, jacking system further includes the ascending path terminal for being arranged at upper mold and is communicated with PLC controller and connected
Lead limit switch, upper mold rise in place when touch lead limit switch closure, PLC controller be used for opened in stroke limit
Close and control second solenoid valve the second pipeline of closing to cause upper mold to stop rising movement when closing.
Further, jacking system further includes the pressure gauge being arranged on the first pipeline, and pressure gauge is connected by contact switch
PLC controller is connected to, when upper mold drops to die-closed position and pressure gauge reaches setting value, contact switch closure, PLC controller
Upper mold is caused to stop declining movement for controlling second solenoid valve to close the first pipeline.
Further, the slurry heating system includes heater, the voltage regulating module being connected with the heater, Yi Jilian
The switch being connected between the voltage regulating module and power supply, the switch are additionally coupled to the PLC controller.
Further, voltage regulating module integrates three-phase phase shifting trigger circuit, single-phase silicon-controlled, RC resistance-capacitance absorptions circuit and voltage
Circuit is connected to receive the control voltage signal of PLC outputs in one, voltage controling end and the PLC controller of voltage regulating module,
The output terminal of voltage regulating module is connected to adjust the heating voltage of heater with heater.
Further, slurry heating system include be used for slurry in barrel is heated barrel heating system, be used for
The material mouth heating system heated to slurry at the feed mouth of pipe, barrel heating system include the first heating being arranged in barrel
Device, the first voltage regulating module being connected with primary heater and be connected to first the first voltage regulating module of voltage regulating module and power supply it
Between second switch, second switch is additionally coupled to PLC controller；Material mouth heating system adds including being arranged at the second of the feed mouth of pipe
Hot device, the second voltage regulating module being connected with secondary heater and what is be connected between the second voltage regulating module and power supply the 3rd open
Close, the 3rd switch is additionally coupled to PLC controller.
Further, automatic control system further includes temperature control system, and temperature control system includes and PLC controller communication connection
Analog input/output module, the integrative temperature transmitter being connected with the A/D input terminals of analog input/output module, mould
The D/A output terminals of analog quantity input/output module and the voltage controling end of voltage regulating module connect, and integrative temperature transmitter will detect
To temperature signal be converted into analog electric signal and send A/D input terminals to, analog electric signal is converted to number by A/D input terminals
Word amount signal feeds back to PLC controller, PLC controller according to digital quantity signal output control voltage signal to analog input/
Output module is simultaneously converted into analog quantity voltage signal by D/A output terminals and is sent to voltage regulating module, so control heater plus
Thermal power.
Further, automatic control system further includes temperature display system, temperature display system and integrated temperature pick-up
Device is connected, the temperature detected for showing integrative temperature transmitter；Automatic control system is further included for showing work shape
The signal display system of state, signal display system are connected with PLC controller communication；Automatic control system, which further includes, is connected to PLC
The switching switch of controller, switching switch are used to switch between automatically and manually operating mode.
The automatic control system for ceramic hot pressure casting forming of the present invention, hot pressing composing type is realized using PLC controller
Automatically control, simplify the hardware connection of control system, enhance the control function of control system, improve the reliable of system
Property, extend system maintenance cycle and service life.
In addition to objects, features and advantages described above, the present invention also has other objects, features and advantages.
Below with reference to accompanying drawings, the present invention is described in further detail.
Brief description of the drawings
The attached drawing for forming the part of the application is used for providing a further understanding of the present invention, schematic reality of the invention
Apply example and its explanation is used to explain the present invention, do not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the structure diagram of the automatic control system for ceramic hot pressure casting forming of the preferred embodiment of the present invention；
Fig. 2 is the knot of the jacking system of the automatic control system for ceramic hot pressure casting forming of the preferred embodiment of the present invention
Structure schematic diagram；
Fig. 3 is the main circuit diagram of the automatic control system for ceramic hot pressure casting forming of the preferred embodiment of the present invention；
Fig. 4 is the PLC control circuits of the automatic control system for ceramic hot pressure casting forming of the preferred embodiment of the present invention
Figure.
Description of reference numerals：
100th, PLC controller；200th, jacking system；300th, slurry heating system；400th, slurry ramming system；500th, temperature
Setting device；600th, temperature control system；700th, temperature display system；800th, signal display system；
10th, upper mold；11st, air compressor machine；12nd, cylinder；13rd, gas receiver；14th, the first pipeline；15th, the second pipeline；16th, pressure
Table；17th, air pressure is locked；18th, barrel；19th, it is fed the mouth of pipe；20th, the first digital temperature shows table；21st, the second digital temperature shows table.
Embodiment
It should be noted that in the case where there is no conflict, the feature in embodiment and embodiment in the application can phase
Mutually combination.Below with reference to the accompanying drawings and the present invention will be described in detail in conjunction with the embodiments.
With reference to Fig. 1, the preferred embodiment of the present invention provides a kind of automatic control system for ceramic hot pressure casting forming,
Including：PLC controller 100, the jacking system 200 for driving 10 elevating movement of hot die-casting molding machine upper mold, for slurry
The slurry heating system 300 that is heated, the slurry ramming system 400 for driving slurry press-in mold die cavity, for inputting
The temperature setting device 500 of temperature, PLC controller 100 are pressed into jacking system 200, slurry heating system 300, slurry respectively
System 400, the communication connection of temperature setting device 500；Temperature setting device 500 is used for the corresponding electric signal of the temperature value of setting
Input PLC controller 100；Slurry heating system 300 is used to start to add slurry under the control of PLC controller 100
Heat, and for exporting feedback signal when being heated to set temperature value to PLC controller 100；Jacking system 200 starts to control
Upper mold 10 rises and control upper mold 10 drops to die-closed position after upper mold 10 rises the scheduled time；PLC controller 100 is used for
Control slurry ramming system 400 to start to drive slurry to be pressed into mold die cavity when upper mold 10 drops to die-closed position, and be used for
Control jacking system 200 starts to control upper mold 10 to rise after the molding scheduled time.The present invention's is used for ceramic hot pressure casting forming
Automatic control system, automatically controlling for hot pressing composing type is realized using PLC controller 100, simplifies the hardware of control system
Wiring, enhances the control function of control system, improves the reliability of system, extends the system maintenance cycle and using the longevity
Life.
Jacking system 200 can use dynamic jacking system, pressure liftable system or hydraulic lifting system.
With reference to Fig. 2, in this preferred embodiment, jacking system 200 uses pressure liftable system.Specifically, jacking system 200
The cylinder 12 being connected including air compressor machine 11, with air compressor machine 11 by pipeline, cylinder 12 connect upper mold 10, are provided with and are used on pipeline
Control cylinder 12 moves and then drives the solenoid valve of 10 elevating movement of upper mold.
In Fig. 3, air compressor machine 11 is connected to power supply by first switch KM1, by first switch KM1 control air compressor machines 11
Start and stop.To ensure trouble free service, in the present embodiment, F pairs of circuit breaker Q is provided between first switch KM1 and power supply
It carries out short circuit and under-voltage protection；Electrothermal relay FR is in series between first switch KM1 and air compressor machine 11 to overload it
Protection.As shown in Figure 4, first switch KM1 is additionally coupled to PLC controller 100.
With reference to Fig. 2 and Fig. 4, further, jacking system 200 further includes the gas receiver 13 being connected with air compressor machine 11, gas storage
The gas outlet of cylinder 13 is provided with for controlling the first solenoid valve YV1 that gas discharges in gas receiver 13.Gas receiver 13 passes through first
Pipeline 14 is connected to the epicoele of cylinder 12, the cavity of resorption of cylinder 12 is connected to by the second pipeline 15.First pipeline 14 and the second pipe
The second solenoid valve YV2 for controlling the two to be opened and closed is provided with road 15.First solenoid valve YV1 and second solenoid valve YV2 also divide
PLC controller 100 is not connected to.
First solenoid valve YV1 is used to control gas in gas receiver 13 to discharge.Second solenoid valve YV2 is used to control walking for gas
To.Specifically, the first coil YV2-1 of second solenoid valve YV2 controls the opening and closing of the first pipeline 14, and the of second solenoid valve YV2
Two coil YV2-2 controls the opening and closing of the second pipeline 15.When first solenoid valve YV1 obtains electric, valve is opened, and gas is released in gas receiver 13
Put.When first coil YV2-1 obtains electric, the first pipeline 14 is opened, and gas enters the epicoele that the first pipeline 14 reaches cylinder 12, gas
The epicoele air pressure of cylinder 12 is more than cavity of resorption air pressure, is moved down in 12 piston of cylinder, upper mold 10 declines at this time.When the second coil YV2-2 is obtained
When electric, the second pipeline 15 is opened, and gas enters the cavity of resorption that the second pipeline 15 reaches cylinder 12, and the cavity of resorption air pressure of cylinder 12 is more than upper
Chamber air pressure, 12 inner carrier of cylinder move up, and upper mold 10 rises at this time.
In addition, air pressure lock 17 is additionally provided with the first pipeline 14 and the second pipeline 15, for being located at molding in upper mold 10
Pressurize is carried out to cylinder 12 during position.
With reference to Fig. 2 and Fig. 4, further, jacking system 200 further includes the pressure gauge 16 being arranged on the first pipeline 14,
Pressure gauge 16 is connected to PLC controller 100 by contact switch SP.When upper mold 10 drops to die-closed position and pressure gauge 16 reaches
During setting value, contact switch SP closures, PLC controller 100 is used to control second solenoid valve YV2 the first pipelines 14 of closing to cause
Mould 10 stops declining movement.
Further, jacking system 200 further include the ascending path terminal that is arranged at upper mold 10 and with PLC controller 100
The lead limit switch SQ of connection is communicated, upper mold 10 touches lead limit switch SQ closures, PLC controller when rising in place
100 are used to control second solenoid valve YV2 to close the second pipeline 15 when lead limit switch SQ is closed so that upper mold 10 stops
Rise movement.
The jacking system 200 of the present invention drives upper mold 10 move up and down, is complete using air compressor machine 11, solenoid valve control cylinder 12
It is automatically brought into operation into upper and lower mould automatic die assembly, blank demoulding etc., it is simple in structure, be conducive to the lifting of hot die-casting molding production efficiency.
Slurry heating system 300 include heater, the voltage regulating module that is connected with heater and be connected to voltage regulating module and
Switch between power supply, switch are additionally coupled to PLC controller 100.
With reference to Fig. 3 and Fig. 4, further, slurry heating system 300 includes being used for heat slurry in barrel 18
Barrel heating system, the material mouth heating system for being heated to slurry at the feed mouth of pipe 19.
Primary heater (not shown) that barrel heating system includes being arranged in barrel 18, be connected with primary heater
The first voltage regulating module SCR1 and second switch KM2 being connected between the first voltage regulating module SCR1 and power supply, second switch
KM2 is additionally coupled to PLC controller 100.Material mouth heating system include be arranged at feed the mouth of pipe 19 secondary heater (not shown),
The second voltage regulating module SCR2 being connected with secondary heater and the be connected between the second voltage regulating module SCR2 and power supply the 3rd
KM3 is switched, the 3rd switch KM3 is additionally coupled to PLC controller 100.By material mouth heating system to the slurry at the feed mouth of pipe 19
Heating, to promote the mobility of slurry, and then improves the quality of shaping Bear-grudge parts.In the present embodiment, second switch KM2 and the 3rd is opened
Close KM3 and be connected to power supply again by circuit breaker Q F, short circuit and under-voltage protection are realized by circuit breaker Q F.This preferred embodiment
In, first switch KM1, second switch KM2, the 3rd switch KM3 use contactor.
Further, the first voltage regulating module SCR1 and the second voltage regulating module SCR2 structures are identical, its integrated three-phase phase shifting touches
Power Generation Road, single-phase silicon-controlled, RC resistance-capacitance absorptions circuit and potential circuit are controlled in the voltage controling end in one, module and PLC
Device 100 is connected to receive the control voltage signal that PLC controller 100 even exports, and output terminal is connected with corresponding heater, real
Voltage on existing heater is adjusted, so as to control the output power of heater, achievees the purpose that slurry temperature customization is adjusted.
In this preferred embodiment, the first short-circuiting device is also associated between the first voltage regulating module SCR1 and second switch KM2
FU1, similarly, is also connected with the second short-circuiting device FU2 between the switches of the second voltage regulating module SCR2 and the 3rd KM3, passes through first
Short-circuiting device FU1 and the second short-circuiting device FU2 realizes that line short is protected.
With reference to Fig. 1 and Fig. 4, further, automatic control system further includes temperature control system 600, and temperature control system 600 is used for
The lower cooperation slurry heating system 300 of the control of PLC controller 100, which is realized, automatically controls slurry temperature PID.Temperature control system 600 wraps
Include with analog input/output module of the communication connection of PLC controller 100, inputted with the A/D of analog input/output module
Hold the integrative temperature transmitter of connection, the D/A output terminals of analog input/output module and the voltage controling end of voltage regulating module
Connection.It is as follows that the present invention automatically controls slurry temperature PID realization：Integrative temperature transmitter turns the temperature signal detected
Change analog electric signal into and send A/D input terminals to, analog electric signal is converted to digital quantity signal and fed back to by A/D input terminals
PLC controller 100, PLC controller 100 according to digital quantity signal output control voltage signal to analog input/output module,
And analog quantity voltage signal is converted into by D/A output terminals and is sent to voltage regulating module, and then control the heating power of heater.
In this preferred embodiment, in barrel 18 and the feed mouth of pipe 19 is respectively arranged with above-mentioned temperature control system 600.With reference to figure
3 and Fig. 4, the platinum electricity of the first integrative temperature transmitter SBW1, the first integrative temperature transmitter SBW1 is provided with barrel 18
Resistance Rt is used to be detected slurry temperature in barrel 18, and the first integrative temperature transmitter SBW1 and the first analog input/
The A/D input terminals of output module MAD01 are connected, the D/A output terminals and main circuit of the first analog input/output module MAD01
In the first voltage regulating module SCR1 voltage controling end connection.
The feed mouth of pipe 19 is provided with the second integrative temperature transmitter SBW2, the platinum of the second integrative temperature transmitter SBW2
Resistance Rt is detected slurry temperature at the feed mouth of pipe 19, and the second integrative temperature transmitter SBW2 and the second analog quantity are defeated
Enter/the A/D input terminals of output module MAD02 are connected, the D/A output terminals and second of the second analog input/output module MAD02
The voltage controling end connection of voltage regulating module SCR2.
The slurry temperature of barrel 18 and the feed mouth of pipe 19 is controlled in the present invention, integrative temperature transmitter is employed, adjusts
Multiple integration modules such as die block, which are worked in coordination, realizes PID temperature control, can reach higher control accuracy, the blank after shaping
The porosity, the wrinkle etc. of blank surface reduce, and the quality of blank is improved.
With reference to Fig. 1 and Fig. 4, further, automatic control system further includes temperature display system 700, temperature display system
700 are connected with integrative temperature transmitter, the temperature detected for showing integrative temperature transmitter.This preferred embodiment
In, temperature display system 700 includes being connected to the first integrative temperature transmitter SBW1, the second integrative temperature transmitter
The first digital temperature of SBW2 shows that table 20, the second digital temperature show table 21.
With reference to Fig. 1 and Fig. 4, further, automatic control system is further included shows system for the signal of display working condition
System 800, signal display system 800 are connected with the communication of PLC controller 100.In this preferred embodiment, signal display system 800 wraps
Include the signal display lamp for showing each several part working status.Specifically, as in Fig. 4, HL1, HL2, HL3 are respectively air compressor machine 11
Work, the primary heater work of barrel 18, the signal display lamp of the feed mouth of pipe 19 secondary heater work, HL1, HL2, HL3
It is in parallel with KM1, KM2, KM3 respectively.HL6, HL7 are respectively the signal display lamp that upper mold 10 declines, rises movement, and HL6, HL7 divide
First coil YV2-1, the second coil YV2-2 not with second solenoid valve YV2 is in parallel.HL4, HL5 be respectively system work automatically,
Mold the signal display lamp of pressurize work.
Further, automatic control system further includes the switching switch SA1 for being connected to PLC controller 100, switching switch
SA1 is used to switch between automatically and manually operating mode.In Fig. 4, SB1 and SB2 be respectively the startup that system automatically controls and
Stop button.SB3 and SB4 is respectively the startup that system controls manually and the button that is stopped.SB5 and SB6 is upper mold 10 respectively
Ascending motion and the control button of descending motion.Manual, the automatic two kinds of operating modes of Design of Automatic Control System of the present invention,
It is convenient to be provided for mode and maintenance, also provides reliable guarantee for production.
Slurry ramming system 400 includes air compressor, the siphunculus being connected with air compressor, the electricity being arranged on siphunculus
Magnet valve, the end of siphunculus are stretched into barrel, and solenoid valve is connected with PLC controller 100.PLC controller 100 drops in upper mold 10
Corresponding solenoid valve is controlled to open with the injecting compressed air into barrel during die-closed position, so as to drive slurry to pass through feeder sleeve pressure
Enter mold die cavity.
In the present embodiment, temperature setting device 500 includes the DIP device being connected with PLC controller 100, is used for realization barrel
The setting of slurry, the feed mouth of pipe 19 slurry control temperature in 18.
In the present embodiment, change-over switch SA2 is also associated with PLC controller 100, is used for realization the urgent of the movement of upper mold 10
Control.
In addition, in forming process, the temperature of mould is influenced by slurry temperature, mold temperature can be caused to raise, so that
The cooling and shaping process cooling temperature of slurry is not low enough, therefore the invention of this reality further includes the cooling system that constant temperature water cooling is passed to mould
System.Specifically, cooling system includes being arranged at cooling duct inside upper mold 10 and/or lower die, the entrance of cooling duct and goes out
Mouth is connected by water pipe with cooling-water machine respectively.It so can be achieved to be flowed into cooling duct through water pipe by the cooling water of cooling-water machine outflow
Inflow cooling-water machine, energy conservation and environmental protection are circulated to be cooled down to mould, again via outlet.
With reference to Fig. 2 to Fig. 4, its control process of automatic control system of the invention is as follows：
1) power turn-ons master switch, that is, circuit breaker Q F (see Fig. 3), injection moulding automatic moulding system are powered.Will according to technique
Ask, control temperature value is set by DIP device.If switching switch SA1 is to get to automatically control position, as shown in figure 4, PLC is controlled
100 input point of device, 00002 input signal " 1 " processed, is handled through 100 internal logic of PLC controller, its input point 01003 output letter
Number " 1 " makes HL4 bright, and the system of expression is in automatic control state.If switching switch SA1 gets to control position manually, PLC controls
100 input point of device, 00002 input signal processed is " 0 ", is handled through 100 internal logic of PLC controller, its output point 01003 exports
Signal " 0 " makes HL4 go out, and the system of expression is in manual state of a control.
2) during automatic modes, start button SB1 is pressed, 100 input point of PLC controller, 00000 input signal " 1 ",
Handled through internal logic, 100 output point 01000,01001,01002 of PLC controller exports signal " 1 " respectively, makes contactor
The powered actuation of KM1, KM2, KM3, so as to control the air compressor machine 11 in main circuit to operate, the primary heater and feeder sleeve of barrel 18
The secondary heater of mouth 19 is begun to warm up.PLC controller 100 carries out barrel 18,19 temperature of the feed mouth of pipe according to the temperature value of setting
Degree PID is automatically controlled.Specifically, during this control, with the change of slurry temperature, two integrative temperature transmitters
Temperature signal is converted into current signal by SBW1 and SBW2 respectively, sends respective digital temperature display table 20 and 21 to, at the same time
Digital quantity is converted into by two analog inputs/output module MAD01, MAD02 respectively to input into PLC controller 100, from
And realize automatic temperature-adjusting and adjust.
18 slurry of barrel, the temperature of feed 19 slurry of the mouth of pipe are influenced to change by various interference.Two analog quantitys at this time
The temperature signal that the A/D modules of input/output module MAD01, MAD02 each receive is not equal to set-point, passes through PLC controller
After 100 pairs of deviation signal calculation process, by each D/A modules output voltage signal V1, V2 control respectively barrel heating system and
The first voltage regulating module SCR1, the second voltage regulating module SCR2 work in material mouth heating system, so as to adjust primary heater, second
The output power of heater, realizes the constant control of temperature.
3) passes through certain adjusting process, its slurry temperature is maintained at the temperature of setting, that is, the temperature of slurry reaches
When having arrived the temperature value of technological requirement, PLC controller 100 outputs signal to the first electricity respectively by output point 01005,01007
Magnet valve YV1, the second coil YV2-2 control cylinders 12 of second solenoid valve YV2 work, and driving upper mold 10 moves up, while on
It is bright that mould 10 rises indicator light HL7.Lead limit switch SQ is touched after upper mold 10 rises in place closes its normally opened contact, makes
00005 input signal of PLC controller 100 is " 1 ", and 01007 output point of PLC controller 100 is defeated after internal logic computing
Go out signal " 0 ", the second coil YV2-2 dead electricity, upper mold 10 stops movement, while the startup of 100 timer internal of PLC controller starts
Periodically.In timing, mould demoulds cooling base substrate.After timing arrives, the output point 01006 of PLC controller 100
The second coil YV2-1 is outputed signal to, 12 piston driving upper mold 10 of cylinder declines, while the decline indicator light of upper mold 10 HL6 is bright.
4) when upper mold 10 drops to die-closed position, upper mold 10 declines to be hampered, and the pressure of pressure gauge 16 raises rapidly, when
When clamping pressure reaches setting value, its contact switch SP closures, pass through 00007 input point input signal of PLC controller 100
" 1 ", by internal logic computing, the output point 01006 of PLC controller 100 exports of " 0 " signal to second solenoid valve YV2
Two coil YV2-1, gas circuit stop supplying to cylinder 12.Under 17 effect of air pressure lock, cylinder 12 starts pressurize, PLC controller 100
It is bright to packing state indicator light HL5, HL5 that output point 01004 exports signal " 1 ".
5) for when the molding dwell time reaching setting value, slurry completes shaping, PLC controls within certain dwell time
The output point 01007 of device 100 exports second coil YV2-2 of the signal " 1 " to second solenoid valve YV2, and control cylinder 12 drives
Mould 10 moves upwards.100 timing of PLC controller makes mold releasability take out base substrate after cylinder 12 rises to upper limit travel switch.Such as
This cycle operation.
If 6) presses stop button SB2, system will be stopped.
If 7) switching switch SA1 is got to manual position by, operable SB3, SB4 start and stop air compressor machine 11 and add
Thermal control system works.Press SB5 point operation controls upper mold 10 to rise, press SB6 point operation controls upper mold 10 and decline.By manually seeing
Examine, operation hot die-casting molding machine completes slurry shaping work.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the invention, for the skill of this area
For art personnel, the invention may be variously modified and varied.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
- A kind of 1. automatic control system for ceramic hot pressure casting forming, it is characterised in that including：PLC controller (100), use Add in the jacking system (200), the slurry for being heated to slurry of driving hot die-casting molding machine upper mold (10) elevating movement Hot systems (300), the slurry ramming system (400) for driving slurry press-in mold die cavity, the temperature for input temp are set Determine device (500), the PLC controller (100) respectively with the jacking system (200), the slurry heating system (300), The slurry ramming system (400), the temperature setting device (500) communication connection；The temperature setting device (500) is used to the corresponding electric signal of the temperature value of setting inputting the PLC controller (100)；The slurry heating system (300) is used to start to add slurry under the control of the PLC controller (100) Heat, and for exporting feedback signal when being heated to set temperature value to the PLC controller (100)；The PLC controller (100) be used for according to the feedback signal that receives control the jacking system (200) to start with Control upper mold (10) rises and controls upper mold (10) to drop to die-closed position after upper mold (10) rises the scheduled time；The PLC controller (100) is used to control the slurry ramming system (400) when upper mold (10) drops to die-closed position Start with drive slurry be pressed into mold die cavity, and for controlled after the scheduled time mold jacking system (200) startup with Upper mold (10) is controlled to rise.
- 2. the automatic control system according to claim 1 for ceramic hot pressure casting forming, it is characterised in thatThe cylinder (12) that the jacking system (200) includes air compressor machine (11), is connected with the air compressor machine (11) by pipeline, institute State air compressor machine (11) and power supply is connected to by first switch (KM1), the cylinder (12) connects the upper mold (10), the pipeline On be provided with for control the cylinder (12) move so that drive upper mold (10) elevating movement solenoid valve.
- 3. the automatic control system according to claim 2 for ceramic hot pressure casting forming, it is characterised in thatThe jacking system (200) further includes the gas receiver (13) that is connected with the air compressor machine (11), the gas receiver (13) Gas outlet is provided with the first solenoid valve (YV1) for controlling the interior gas release of the gas receiver (13), the gas receiver (13) The epicoele of the cylinder (12) is connected to by the first pipeline (14), the cylinder (12) is connected to by the second pipeline (15) Cavity of resorption, the second solenoid valve for controlling the two to be opened and closed is provided with first pipeline (14) and second pipeline (15) (YV2), first solenoid valve (YV1) and second solenoid valve (YV2) are further connected to the PLC controller (100).
- 4. the automatic control system according to claim 3 for ceramic hot pressure casting forming, it is characterised in thatThe jacking system (200) further include the ascending path terminal that is arranged at the upper mold (10) and with the PLC controller (100) lead limit switch (SQ) of communication connection, the upper mold (10) touch the lead limit switch when rising in place (SQ) close, the PLC controller (100) is used to control the second solenoid valve when the lead limit switch (SQ) closes (YV2) second pipeline (15) is closed so that the upper mold (10) stops rising movement.
- 5. the automatic control system according to claim 3 for ceramic hot pressure casting forming, it is characterised in thatThe jacking system (200) further includes the pressure gauge (16) being arranged on first pipeline (14), the pressure gauge (16) PLC controller (100) is connected to by contact switch (SP),When the upper mold (10) drops to the die-closed position and the pressure gauge (16) reaches setting value, the contact switch (SP) close, the PLC controller (100) is used to control second solenoid valve (YV2) to close first pipeline (14) so that institute Upper mold (10) is stated to stop declining movement.
- 6. the automatic control system according to claim 1 for ceramic hot pressure casting forming, it is characterised in thatThe slurry heating system (300) includes heater, the voltage regulating module being connected with the heater and is connected to described Switch between voltage regulating module and power supply, the switch are additionally coupled to the PLC controller (100).
- 7. the automatic control system according to claim 6 for ceramic hot pressure casting forming, it is characterised in thatThe voltage regulating module integrates three-phase phase shifting trigger circuit, single-phase silicon-controlled, RC resistance-capacitance absorptions circuit and potential circuit in one Body, the voltage controling end of the voltage regulating module are connected to receive the control of the PLC outputs with the PLC controller (100) Voltage signal, the output terminal of the voltage regulating module are connected to adjust the heating voltage of the heater with the heater.
- 8. the automatic control system according to claim 6 for ceramic hot pressure casting forming, it is characterised in that the slurry Heating system (300) include be used for the barrel (18) interior slurry is heated barrel heating system, for feeder sleeve The material mouth heating system that mouth (19) place slurry is heated,Primary heater that the barrel heating system includes being arranged in the barrel (18), be connected with the primary heater The first voltage regulating module (SCR1) and be connected to first voltage regulating module of the first voltage regulating module (SCR1) between power supply Second switch (KM2), the second switch (KM2) are additionally coupled to the PLC controller (100)；The material mouth heating system include be arranged at it is described feed the mouth of pipe (19) secondary heater, with the secondary heater phase Even the second voltage regulating module (SCR2) and be connected to second voltage regulating module (SCR2) power supply between the 3rd switch (KM3), the 3rd switch (KM3) is additionally coupled to the PLC controller (100).
- 9. the automatic control system according to claim 6 for ceramic hot pressure casting forming, it is characterised in that described automatic Control system further includes temperature control system (600),The temperature control system (600) include with the PLC controller (100) communication connection analog input/output module, with The integrative temperature transmitter of the A/D input terminals connection of the analog input/output module, the analog input/output The D/A output terminals of module are connected with the voltage controling end of the voltage regulating module,The temperature signal detected is converted into analog electric signal and sends the A/D inputs to by the integrative temperature transmitter The analog electric signal is converted to digital quantity signal and feeds back to the PLC controller (100), institute by end, the A/D input terminals State PLC controller (100) and the control voltage signal is exported to the analog input/output mould according to the digital quantity signal Block is simultaneously converted into analog quantity voltage signal by the D/A output terminals and is sent to the voltage regulating module, and then controls the heating The heating power of device.
- 10. the automatic control system according to claim 9 for ceramic hot pressure casting forming, it is characterised in thatThe automatic control system further includes temperature display system (700), the temperature display system (700) with it is described integrated Temperature transmitter is connected, the temperature detected for showing the integrative temperature transmitter；The automatic control system further includes the signal display system (800) for display working condition, the signal display system Unite (800) and the PLC controller (100) communication connects；The automatic control system further includes the switching switch (SA1) for being connected to the PLC controller (100), and the switching is opened (SA1) is closed to be used to switch between automatically and manually operating mode.
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| CN201810021070.3A CN107942925A (en) | 2018-01-10 | 2018-01-10 | Automatic control system for ceramic hot pressure casting forming |
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Application publication date: 20180420 |