CN102490379B - Control system and control method of resin transfer moulding glue injection machine - Google Patents
Control system and control method of resin transfer moulding glue injection machine Download PDFInfo
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- CN102490379B CN102490379B CN201110411996.1A CN201110411996A CN102490379B CN 102490379 B CN102490379 B CN 102490379B CN 201110411996 A CN201110411996 A CN 201110411996A CN 102490379 B CN102490379 B CN 102490379B
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Abstract
Provided are a control system and a control method of a resin transfer moulding glue injection machine. The control system of the resin transfer moulding glue injection machine comprises a controller, a human machine interface (HMI) human-machine interactive system, a servo drive system and a glue injection machine system. The controller controls the servo drive system and the glue injection machine system according to setting of the HMI human-machine interactive system and signals from the glue injection machine system, and therefore, one or a plurality of kinds of raw materials are injected into a mould according to requirements of a composite material formula. A resin transfer moulding device adopting the control system and the control method can conveniently adjust proportioning of resin and annexing agents, accurately control flow of resin mixture injected in the mould, achieve accurate control of injection amount of the resin mixture, and effectively improve efficiency of resin transfer moulding process simultaneously.
Description
Technical field
The present invention relates to forming materials, relate in particular to a kind of resin transfer moulding (Resin Transfer Moulding is called for short RTM) glue-injection machine control system and control method.
Background technology
Resin transfer moulding refers to and in the die cavity of mould, places in advance pre-stone, reinforcing material etc., after mold closing, make it to soak into pre-stone from being arranged at the hole for injecting glue of appropriate location in the resin compound of the uniform temperature preparing being injected into mold cavity under certain pressure, then solidify, the demoulding and obtain a kind of moulding process of goods.The key of RTM moulding process is the parameters such as proportioning, injecting glue flow and the injection pressure of strict guarantee resin and curing agent in injecting glue process.
At present, RTM moulding process is one of the work that conducted a research both at home and abroad in recent years field of enlivening the most, and resin transfer moulding glue injection machine is also correspondingly developed the support study dies work that is used for, and is even used for carrying out the production of small lot product.
Traditional resin transfer moulding glue injection machine is made up of resin Composition chamber, additive or catalytic component chamber, meter-mixer, injection driving element etc.The component such as resin, catalyst, through metering, is determined after corresponding ratio, enters blender and stir under piston or gas pressure effect, then as required resin compound is injected in mould.
This resin transfer moulding glue injection machine cannot accurately be controlled the injection volume of resin compound, and the proportioning of resin and catalyst is single, and resin and catalyst can only carry out proportioning in advance, and volume is relatively huge, expensive.
Summary of the invention
The object of this invention is to provide a kind of injection volume that can accurately control resin compound, and can be as required resin transfer moulding glue injection machine control system and the control method of proportioning resin and additive or catalyst arbitrarily.
For achieving the above object, the invention provides a kind of resin transfer moulding glue injection machine control system, comprising: controller, HMI man-machine interactive system, servo drive system and glue-injection machine system, wherein,
Described controller is according to the setting of described HMI man-machine interactive system with from servo drive system described in the signal controlling of described glue-injection machine system and glue-injection machine system, thereby one or more raw materials are required to inject mould according to composite-material formula.
Described controller, for monitoring the state of glue-injection machine system various kinds of sensors analog signal, switching value signal and servo-driver operating state signal, obtains the selection of control mode and the setting parameter of formula of HMI man-machine interactive system; Simultaneously for controlling the control signal of all kinds of magnetic valve operations of output glue-injection machine system, mode of operation signal and the real-time demonstration information of HMI man-machine interactive system to on-the-spot running status of servo-driver.
Described servo drive system is for the mode of operation information that receives described controller and set and by the mode operation of setting; obtain rotating speed and the positional information of motor in described glue-injection machine system; and the running status of servo-driver self is fed back to described controller, so that described controller is reported to the police, mistake or other protection operation.
Described HMI man-machine interactive system is for starting setting and the selection of described controller, setting mode of operation and formula, the on-the-spot real-time running state of injecting glue body is shown simultaneously, and produce all kinds of operation measured datas and real-time form, measured curve, history curve and the processing of reporting to the police of setting numerical value.
Described glue-injection machine system is for carrying out temperature acquisition to each injecting unit raw material and mixed injecting glue, injection pressure is gathered, pressure in each injecting unit raw cylinder is checked, the magnetic valve state of the path to each pipeline checks, and exports PLC controller to the signal detecting and process gathering; Receive the make-break operation of described controller to each injecting unit pipeline, receive the control operation of described controller to each heater, receive the control operation of described servo drive system to described servomotor.
Preferably, described controller is PLC controller, and described servo-drive system comprises servomotor.
The present invention also provides a kind of resin transfer moulding glue injection machine control method, it is characterized in that, described control system is moved by mode below:
Step 1: carry out collection, calculation process and the control of coherent signal in glue-injection machine system;
Step 2: the setting of filling a prescription in HMI man-machine interactive system is also indicated running status;
Step 3: judge whether to meet the condition of work of glue-injection machine system, be to proceed to next step, otherwise proceed to step 1;
Step 4: judge in HMI man-machine interactive system, whether mode of operation has been set, be to complete corresponding operation by the mode of operation of setting, otherwise proceed to step 1.
Described coherent signal comprises surplus, injecting glue temperature, injection pressure, injecting glue flow, injecting glue flow velocity, the actual measurement proportioning of the flow of the temperature of each injecting unit raw material, each injecting unit raw material, each injecting unit raw material.
In described HMI man-machine interactive system, the instruction of running status comprises that charging setting and the proportioning of each injecting unit raw material in the state of various kinds of sensors signal measured data, all magnetic valves, limit switch, pressure switch in glue injection body system and formula set value.
The condition of work of described glue-injection machine system is that the temperature on each injecting unit discharge pipe all meets the enabling signal after formula requires, and without washout and alarm signal.
Described mode of operation has emergent stopping tupe, Manual-cleaning mode of operation and operates pressure control mode and the flow control mode set for charging and discharging; Described pressure control mode and flow control mode are all set with automatic control mode and manual control model; Under automatic control mode, be divided into again continuous operation mode and definite value mode of operation; Manually manual feeder operation mode and the single material returning work pattern of manual discharging mode of operation, the discharging of control model after being divided into charging and transfiniting according to the ruuning situation of piston in resin cylinder after transfiniting.
Because RTM glue-injection machine control system of the present invention is taking PLC controller as core, and comprise HMI man-machine interactive system, servo drive system and glue-injection machine system.Therefore, can allocate easily the proportioning of resin and additive, accurately control the flow that injects mould resin compound, realize the injection volume of accurately controlling resin compound, and just can realize the resin compound of different proportion proportioning without in advance proportioning resin and each additive component, effectively improve resin transfer molding (RTM) process efficiency.Meanwhile, due to the injecting unit of varying number can be set as required, determine the quantity of injecting unit according to the species number of resin, additive or catalyst, therefore, can be advantageously used in producing dissimilar composite.
Brief description of the drawings
Fig. 1 is the structural representation of an embodiment of the resin transfer moulding glue injection machine of application control system of the present invention;
Fig. 2 is the structural representation of an embodiment of resin transfer moulding glue injection machine control system of the present invention;
Fig. 3 is glue-injection machine master control flow chart of the present invention;
Fig. 4 is to temperature control flow in glue-injection machine control system of the present invention;
Fig. 5 is the control flow chart of each charging magnetic valve in glue-injection machine control system of the present invention;
Fig. 6 is the control flow chart of each discharging magnetic valve in glue-injection machine control system of the present invention;
Fig. 7 is the flow chart of charging under continuous operation mode in glue-injection machine control system of the present invention;
Fig. 8 is the flow chart of continuous operation mode bottom discharge in glue-injection machine control system of the present invention;
Fig. 9 is the flow chart of charging under definite value mode of operation in glue-injection machine control system of the present invention;
Figure 10 is the flow chart of definite value mode of operation bottom discharge in glue-injection machine control system of the present invention;
Figure 11 is the flow chart of manual work pattern bottom discharge in glue-injection machine control system of the present invention;
Figure 12 is the flow chart of charging under manual work pattern in glue-injection machine control system of the present invention;
Figure 13 is the flow chart of feed back under manual work pattern in glue-injection machine control system of the present invention;
Figure 14 is the flow chart cleaning under manual work pattern in glue-injection machine control system of the present invention;
Figure 15 is the flow chart of emergent stopping processing in glue-injection machine control system of the present invention.
Detailed description of the invention
Below with reference to accompanying drawing, preferred embodiment of the present invention is elaborated, so that clearer understanding objects, features and advantages of the present invention.It should be understood that embodiment shown in the drawings is not limitation of the scope of the invention, and just for the connotation of technical solution of the present invention is described.
Fig. 1 is the structure chart of an embodiment of the resin transfer moulding glue injection machine of application control system of the present invention.As shown in the figure, resin transfer moulding glue injection machine of the present invention comprises: servomotor 6, straight helical bar 7, piston 8, raw cylinder 9, drop temperature sensor 10, discharging magnetic valve 11, discharge pipe 12, cleaning control magnetic valve 13, blender charging aperture 14, blender 15, injecting glue temperature sensor 16, injection pressure sensor 17, mould 18, limit switch 19 after raw cylinder, raw cylinder front limit switch 20, pressure switch 21, charging magnetic valve 22, temperature sensor 23 in bucket in heater, bucket 24 in heater, heater adds hot jacket 25, heater inner barrel wall temperature sensor 26, temperature sensor 27 in bucket in heater, bucket 28 in heater, heater adds hot jacket 29, heater inner barrel wall temperature sensor 30, servomotor 31, straight helical bar 32, limit switch 33 after raw cylinder, piston 34, raw cylinder front limit switch 35, drop temperature sensor 36, pressure switch 37, discharging magnetic valve 38, charging magnetic valve 39, discharge pipe 40, cleaning control magnetic valve 41, feed pipe 42, feed pipe 43, raw cylinder 44, mixing and glue injection pipeline 45.
Wherein, after servomotor 6, straight helical bar 7, piston 8, raw cylinder 9, drop temperature sensor 10, discharging magnetic valve 11, discharge pipe 12, cleaning control magnetic valve 13, raw cylinder, in limit switch 19, raw cylinder front limit switch 20, pressure switch 21, charging magnetic valve 22, feed pipe 42, heater, in bucket, in temperature sensor 23, heater, bucket 24, heater add hot jacket 25, heater inner barrel wall temperature sensor 26 forms the first injecting unit.
In bucket, in temperature sensor 27, heater, bucket 28, heater add limit switch 33 after hot jacket 29, heater inner barrel wall temperature sensor 30, servomotor 31, straight helical bar 32, raw cylinder, piston 34, raw cylinder front limit switch 35, drop temperature sensor 36, pressure switch 37, discharging magnetic valve 38, charging magnetic valve 39, discharge pipe 40, cleaning control magnetic valve 41, feed pipe 43, raw cylinder 44 and form the second injecting unit in heater.The quantity of injecting unit can be definite according to the species number of resin and catalyst or additive, and the present embodiment contains two injecting units.
In the first injecting unit, raw cylinder 9 is provided with piston 8, and one end of straight helical bar 7 is connected with piston 8, and the other end of straight helical bar 7 is connected with servomotor 6.In raw cylinder 9, near the position of feed and exhaust tube, pressure switch 21 is housed, limit switch 19 after raw cylinder is housed in the direction of raw cylinder 9 bottoms near servomotor, and in the direction of raw cylinder 9 bottoms near feed and exhaust tube, raw cylinder front limit switch 20 is housed.Raw material heats by technological requirement in heater, and heater adds temperature sensor 26 is housed in hot jacket 25, temperature sensor 23 (being feeding temperature sensor 23) in bucket in bucket 24 in-built having heaters in heater.Meet after feed conditions, raw material carries out charging by feed pipe 42, and charging magnetic valve 22 is housed on pipeline 42.Drop temperature sensor 10 and discharging magnetic valve 11 are installed in position near raw cylinder 9 on discharge pipe 12.
In the second injecting unit, the connection of sensor on its raw cylinder, heater and input and output material pipeline, magnetic valve, pressure switch, limit switch etc. is all identical with first module with installation site.First, second injecting unit is connected with blender by discharge pipe.
Meeting under discharging condition, each raw material in the first injecting unit and the second injecting unit (resin, additive or catalyst) carries out discharging operation simultaneously.Raw material enters blender 15 by discharge pipe 12, and the raw material of each injecting unit enters mould 18 through mixing and glue injection pipeline 45 after mixing.Between magnetic valve 11 and blender charging aperture 14, be also provided with solenoid purge valve 13, injecting glue temperature sensor 16 and injection pressure sensor 17 are housed on pipeline 45.
Below describe the control that how realizes forming materials process by resin transfer molding of the present invention (RTM) glue-injection machine control system in detail.
As shown in Figure 2, RTM glue-injection machine control system of the present invention is with programmable logic controller (PLC) PLC (Programmable Logic Controller, being called for short PLC) controller is core, and comprise HMI (Human Machine Interface, be called for short HMI) man-machine interactive system, servo drive system and glue-injection machine system.
Controller mainly comprises PLC controller, be responsible for the state of various kinds of sensors analog signal, switching value signal and servo-driver operating state signal in monitoring glue-injection machine system, obtain the selection of control mode and the setting parameter of formula of HMI man-machine interactive system; Be responsible for controlling the control signal of all kinds of magnetic valve operations in output glue-injection machine system, mode of operation signal and the real-time demonstration information of HMI man-machine interactive system to on-the-spot running status of servo-driver simultaneously.
Servo drive system is mainly responsible for receiving the mode of operation information of controller setting and is pressed the mode operation of setting; obtain rotating speed and the positional information of motor in glue-injection machine system; and the running status of servo-driver self is fed back to PLC device, so that PLC controller is just reported to the police, mistake or other protection operation.
HMI man-machine interactive system is made up of touch-screen and host computer configuration software, communicate according to the desired communication mode of touch-screen and PLC, setting and the selection of be responsible for starting PLC controller, setting mode of operation and formula, the on-the-spot real-time running state of injecting glue body is shown simultaneously, and produce all kinds of operation measured datas and real-time form, measured curve, history curve and the processing of reporting to the police of setting numerical value.Wherein all kinds of operation measured datas mainly contain the surplus, injecting glue temperature, injection pressure, injecting glue flow, injecting glue flow velocity of the flow of the temperature of each injecting unit raw material, each injecting unit raw material, each injecting unit raw material etc., actual measurement proportioning etc.
Glue-injection machine system is made up of each injecting unit, blender 15, injecting glue temperature sensor 16, injection pressure sensor 17 and mould 18, be responsible for each injecting unit raw material and mixed injecting glue to carry out temperature acquisition, injection pressure is gathered, pressure in each injecting unit raw cylinder is checked, the magnetic valve state of the path to each pipeline checks, and exports PLC controller to the signal detecting and process gathering; Receive the make-break operation of PLC device to each injecting unit pipeline, receive the control operation of PLC device to each heater, receive the control operation of servo drive system to servomotor.
PLC controller can have the mode of one or more communications in the communications such as Canopen, modbus485 communication, RS232, USB; PLC controller can be independent I/O mode, independent Canopen mode, mixing I/O and Canopen mode and modbus mode with communicating by letter of servo-driver system; PLC controller is I/O mode with communicating by letter of glue-injection machine system; Communicating by letter between PLC controller and HMI man-machine interactive system determined according to HMI concrete form; Communicating by letter between servo-driver system and injecting glue body is I/O mode.
Although it should be noted that the present embodiment is using PLC as controller, should be understood that and do not limit PLC as unique controller, can be using embedded systems such as single-chip microcomputer, ARM, FPGA as main control unit.And, although the motion taking two injecting units as example control raw cylinder in the present embodiment does not limit the motion of the raw cylinder of only controlling two injecting units, but can realize the motion control of the raw cylinder of single injecting unit, multiple injecting units yet.
Fig. 3 is the general flow chart of RTM glue-injection machine control system of the present invention.As shown in the figure, RTM glue-injection machine control system is moved by mode below after powering on:
Step 1: carry out collection, calculation process and the control of coherent signal in injecting glue body;
Step 2: the setting of filling a prescription in HMI man-machine interactive system is also indicated running status;
Step 3: judge whether to meet the condition of work of glue-injection machine system, be to proceed to next step, otherwise proceed to step 1;
Step 4: judge in HMI man-machine interactive system, whether mode of operation has been set, be to complete corresponding operation by the mode of operation of setting, otherwise proceed to step 1.
Wherein, in HMI man-machine interactive system, the instruction of running status comprises that charging setting and the proportioning of each injecting unit raw material in the state of various kinds of sensors signal measured data, all magnetic valves, limit switch, pressure switch in glue injection body system and formula set value.
The condition of work of glue-injection machine system is that the temperature on each injecting unit discharge pipe all meets the enabling signal after formula requires, and without washout and alarm signal.
In the time that temperature conditions does not meet, glue-injection machine system need carry out temperature adjusting, and as shown in Figure 4, the job step of its heater is as follows:
Step 1: gather the resin temperature in each injecting unit discharge pipe;
Step 2: judge whether the temperature gathering all meets formula requirement, be in glue-injection machine control system enabling signal effective, otherwise proceed to next step;
Step 3:PLC controller in some way method regulates the temperature of heater, and carries out the circulation of next round.
Wherein, the mode of RTM glue-injection machine control system adjusting heater can be the mode such as mode, break-make heater power source control heat time that regulates heater voltage by module.
The mode of operation of RTM glue-injection machine control system has emergent stopping tupe, Manual-cleaning mode of operation and operates pressure control mode and the flow control mode set for charging and discharging; Described pressure control mode and flow control mode are all set with automatic control mode and manual control model; Under automatic control mode, be divided into again continuous operation mode and definite value mode of operation; Manually manual feeder operation mode and the single material returning work pattern of manual discharging mode of operation, the discharging of control model after being divided into charging and transfiniting according to the ruuning situation of piston in resin cylinder after transfiniting.
Wherein, pressure controlled control mode is to work in certain limit at the injection pressure of the system of guarantee, and the control mode of flow-control is that the injecting glue flow of guarantee system is worked in certain limit.
Below describe charging and the discharging control of RTM glue-injection machine control system in each mode of operation in detail.
As shown in Figure 5, under each mode of operation, in RTM glue-injection machine control system, the control of each injecting unit raw material charging magnetic valve is as follows:
Step 1: judged whether purge signal, be to close all charging magnetic valves, otherwise proceed to next step;
Step 2: judge whether, in the charging of Automatic continuous mode of operation, to be to proceed to step 7, otherwise to proceed to next step;
Step 3: judge whether, in the charging of definite value mode of operation, to be to proceed to step 7, otherwise to proceed to next step;
Step 4: judge whether in manual mode charging, be to proceed to step 7, otherwise proceed to next step;
Step 5: determine whether manual mode single feed back, be to proceed to step 7, otherwise proceed to next step;
Step 6: close corresponding injecting unit raw material charging magnetic valve;
Step 7: judge that corresponding injecting unit discharging magnetic valve, whether in open mode, is to proceed to step 5, otherwise open the charging magnetic valve of corresponding injecting unit raw material.
Wherein, the charging of Automatic continuous mode of operation refers to sets Automatic continuous feeder operation mode in HMI man-machine interactive system, by the requirement of default continuous operation mode, servomotor drives piston charging, system is without halt signal with while abandoning the signal of Automatic continuous mode of operation, proceed charging work, otherwise suspend continuous feed or abandon continuous feed, close servomotor; Judge whether charging completes other component resin, to complete charging, otherwise continuation charging, and the duty that the various sensor signals of collection in motion and the running state information of servomotor are carried out each magnetic valve in calculation process and injecting glue body is delivered to HMI man-machine interactive system show.
When manual work pattern charging refers to and occurs that discharging is transfinited under automatic control mode, in HMI man-machine interactive system, set manual work pattern, by job requirement, servomotor drives piston charging, system is without abandoning manual charging signal, proceed manually, otherwise abandon manual charging, close servomotor; Judge whether other component resin expire cylinder body charging, to stop manual charging, close servomotor, otherwise can continue freely manually charging, and the duty that the various sensor signals of collection in motion and the running state information of servomotor are carried out each magnetic valve in calculation process and injecting glue body is delivered to HMI man-machine interactive system show.
As shown in Figure 6, under each mode of operation, in RTM glue-injection machine control system, the control of each injecting unit raw material discharging magnetic valve is as follows:
Step 1: judged whether purge signal, be to close all discharging magnetic valves, otherwise proceed to next step;
Step 2: judge whether in continuous operation mode discharging, be to proceed to step 6, otherwise proceed to next step;
Step 3: judge whether, in the discharging of definite value mode of operation, to be to proceed to step 6, otherwise to proceed to next step;
Step 4: judge whether in manual mode discharging, be to proceed to step 6, otherwise proceed to next step;
Step 5: close corresponding injecting unit raw material discharging magnetic valve;
Step 6: judge that corresponding injecting unit charging magnetic valve, whether in open mode, is to proceed to step 5, otherwise open the discharging magnetic valve of corresponding injecting unit raw material.
Fig. 7 is the flow chart of charging under continuous operation mode in glue-injection machine control system of the present invention.As shown in the figure, under the continuous operation mode under automatic control, the job step of charging is as follows:
Step 1: judged whether continuous operation mode charging signal, be to proceed to step 3, otherwise proceed to next step;
Step 2: exit continuous feed mode of operation program, continue other programs of operation;
Step 3: calculate the desired flow output valve of each injecting unit under the control mode of place, and be converted to the rotating speed of the motor that each injecting unit is corresponding, control servo-driver, motor is exported by this rotating speed;
Step 4: calculate the actual material quantity of each injecting unit, the actual material flow of each injecting unit, each injecting unit surplus stock amount, injecting glue flow and injecting glue amount, actual proportioning;
Step 5: judged whether continuous feed mode of operation halt signal, had and proceed to step 7, without proceeding to next step;
Step 6: judged whether continuous feed mode of operation termination signal, had and proceed to step 8, without proceeding to step 9;
Step 7: suspend feed pulse output, exit continuous feed program;
Step 8: stop feed pulse output, exit continuous feed program;
Step 9: judged whether that discharging transfinites, be the processing of waiting for that manual discharging is transfinited, otherwise proceed to next step;
Step 10: having judged whether charging settling signal, is to proceed to next step, otherwise continue next round circulation;
Step 11: under continuous operation mode, charging completes, meets continuous operation mode discharging condition, the operation of the line correlation register of going forward side by side.
Fig. 8 is the flow chart of continuous operation mode bottom discharge in glue-injection machine control system of the present invention.As shown in the figure, the job step of continuous operation mode bottom discharge is as follows:
Step 1: judged whether continuous operation mode discharging signal, be to proceed to step 3, otherwise proceed to next step;
Step 2: exit continuous discharge mode of operation program, continue other programs of operation;
Step 3: calculate the desired flow output valve of each injecting unit under the control mode of place, and be converted to the rotating speed of the motor that each injecting unit is corresponding, control servo-driver, motor is exported by this rotating speed;
Step 4: calculate the actual material quantity of each injecting unit, the actual material flow of each injecting unit, each injecting unit surplus stock amount, injecting glue flow and injecting glue amount, actual proportioning;
Step 5: judged whether continuous discharge mode of operation halt signal, had and proceed to step 7, without proceeding to next step;
Step 6: judged whether continuous discharge mode of operation termination signal, had and proceed to step 8, without proceeding to step 9;
Step 7: suspend feed pulse output, exit continuous discharge program;
Step 8: stop feed pulse output, exit continuous discharge program;
Step 9: judged whether that discharging transfinites, be the processing of waiting for that manual discharging is transfinited, otherwise proceed to next step;
Step 10: having judged whether discharging settling signal, is to proceed to next step, otherwise continue next round circulation;
Step 11: continuous operation mode bottom discharge completes, meets continuous operation mode feed conditions, the operation of the line correlation register of going forward side by side.
Fig. 9 is the flow chart of charging under definite value mode of operation in glue-injection machine control system of the present invention.As shown in the figure, the job step of the lower definite value mode of operation charging of control is as follows automatically:
Step 1: judged whether definite value mode of operation charging signal, be to proceed to step 3, otherwise proceed to next step;
Step 2: exit definite value feeder operation mode, move other programs;
Step 3: the desired flow and the material quantity that calculate each injecting unit under the control mode of place, and be converted to required speed and the position signalling of servomotor that each injecting unit is corresponding and control servo-driver, motor is exported by this rotating speed, obtained needed raw material amount;
Step 4: calculate the actual material quantity of each injecting unit, the actual material flow of each injecting unit, each injecting unit surplus stock amount, injecting glue flow and injecting glue amount, actual proportioning;
Step 5: judged whether definite value feeder operation mode halt signal, had and proceed to step 7, without proceeding to next step;
Step 6: judged whether definite value feeder operation mode termination signal, had and proceed to step 8, without proceeding to step 9;
Step 7: suspend feed pulse output, exit definite value charging program;
Step 8: stop feed pulse output, exit definite value charging program;
Step 9: judged whether that charging transfinites, be the processing of waiting for that manual charging is transfinited, otherwise proceed to next step;
Step 10: judge whether that this definite value mode of operation charging completes, and is to proceed to next step, otherwise carries out next round circulation;
Step 11: this takes turns definite value charging and completes, meets definite value mode of operation discharging condition, and the related register using in the definite value course of work is carried out to reset operation.
Figure 10 is the flow chart of definite value mode of operation bottom discharge in glue-injection machine control system of the present invention.As shown in the figure, the job step of the lower definite value mode of operation discharging of control is as follows automatically:
Step 1: judged whether definite value mode of operation discharging signal, be to proceed to step 3, otherwise proceed to next step;
Step 2: exit definite value discharging mode of operation, move other programs;
Step 3: the desired flow and the material quantity that calculate each injecting unit under the control mode of place, and be converted to required speed and the position signalling of servomotor that each injecting unit is corresponding and control servo-driver, motor is exported by this rotating speed, obtained needed raw material amount;
Step 4: calculate the actual material quantity of each injecting unit, the actual material flow of each injecting unit, each injecting unit surplus stock amount, injecting glue flow and injecting glue amount, actual proportioning;
Step 5: judged whether definite value discharging mode of operation halt signal, had and proceed to step 7, without proceeding to next step;
Step 6: judged whether definite value discharging mode of operation termination signal, had and proceed to step 8, without proceeding to step 9;
Step 7: suspend feed pulse output, exit definite value discharging program;
Step 8: stop feed pulse output, exit definite value discharging program;
Step 9: judged whether that discharging transfinites, be the processing of waiting for that manual discharging is transfinited, otherwise proceed to next step;
Step 10: judged whether that this definite value mode of operation discharging completes, and is to proceed to next step, otherwise carries out next round circulation;
Step 11: judging whether actual injecting glue amount is less than sets injecting glue amount, is to proceed to next step, otherwise charging completes, definite value charging invalidating signal, the operation of the line correlation register of going forward side by side;
Step 12: this takes turns definite value discharging and completes, allows definite value charging again, and the related register using in the definite value course of work is carried out to reset operation.
Figure 11 is the flow chart of manual work pattern bottom discharge in glue-injection machine control system of the present invention.As shown in the figure, the discharging work under manually controlling is carried out under charging is transfinited, and its job step is as follows:
Step 1: judge whether that charging transfinites, be to proceed to next step, otherwise proceed to step 4;
Step 2: judge whether to be set as manual mode, be to proceed to next step, otherwise proceed to step 4;
Step 3: judged whether washout, be to proceed to next step, otherwise proceed to step 5;
Step 4: exit the manual charging handling procedure that transfinites, continue other programs of operation;
Step 5: calculate the desired flow output valve of each injecting unit under the control mode of place, and be converted to the rotating speed of the motor that each injecting unit is corresponding, control servo-driver, motor is exported by this rotating speed;
Step 6: calculate the actual material quantity of each injecting unit, the actual material flow of each injecting unit, each injecting unit surplus stock amount, injecting glue flow and injecting glue amount, actual proportioning;
Step 7: judging whether to reach front limit, is to proceed to next step, otherwise allow to proceed manual discharging operation;
Step 8: motor stalling, and complete the operation of related register.
Figure 12 is the flow chart of charging under manual work pattern in glue-injection machine control system of the present invention.As shown in the figure, the charging work under manually controlling is carried out under discharging is transfinited, and its job step is as follows:
Step 1: judge whether that discharging transfinites, be to proceed to next step, otherwise proceed to step 4;
Step 2: judge whether to be set as manual mode, be to proceed to next step, otherwise proceed to step 4;
Step 3: judged whether washout, be to proceed to next step, otherwise proceed to step 5;
Step 4: exit the manual discharging handling procedure that transfinites, continue other programs of operation;
Step 5: calculate the desired flow output valve of each injecting unit under the control mode of place, and be converted to the rotating speed of the motor that each injecting unit is corresponding, control servo-driver, motor is exported by this rotating speed;
Step 6: calculate the actual material quantity of each injecting unit, the actual material flow of each injecting unit, each injecting unit surplus stock amount, injecting glue flow and injecting glue amount, actual proportioning;
Step 7: judging whether to reach rear spacing, is to proceed to next step, otherwise allows to proceed manual feed operation;
Step 8: motor stalling, and complete the operation of related register.
Figure 13 is the flow chart of feed back under manual work pattern in glue-injection machine control system of the present invention.As shown in the figure, the material returning work under manually controlling is spacing rear carrying out after each injecting unit raw cylinder piston is all positioned at, and its job step is as follows:
Step 1: having judged whether single feed back signal, is to proceed to next step, otherwise exit manual feed back handling procedure, continue other programs of operation;
Step 2: the charging magnetic valve of opening each injecting unit;
Step 3: the piston of all injecting units is all by the advance distance of a pulse of the mode setting;
Step 4 feed back completes the operation of the line correlation register of going forward side by side, and starts the circulation of next round.
Figure 14 is the flow chart cleaning under manual work pattern in glue-injection machine control system of the present invention; As shown in the figure, manually the job step of the lower cleaning model of control is as follows:
Step 1: having judged whether purge signal, is to proceed to next step, otherwise enters other program steps 2: close the magnetic valve of all injecting unit chargings and discharging, open the solenoid purge valve of all injecting units;
Step 3: after cleaning, need hand-reset purge signal.
Figure 15 is the flow chart of emergent stopping processing in glue-injection machine control system of the present invention.As shown in the figure, emergent stopping treatment step is as follows:
Step 1: judged whether washout, had and proceed to next step, otherwise exited emergent stopping handling procedure, continued other programs of operation;
Step 2: close the enabling signal of RTM glue-injection machine control system, the charging of closing all pipelines of glue-injection machine system, discharging, solenoid purge valve, close servomotor and heater power source.
Because RTM glue-injection machine control system of the present invention is taking PLC controller as core, and comprise HMI man-machine interactive system, servo drive system and glue-injection machine system.Therefore, can allocate easily the proportioning of resin and additive, accurately control the flow that injects mould resin compound, realize the injection volume of accurately controlling resin compound, and just can realize the resin compound of different proportion proportioning without in advance proportioning resin and each additive component, effectively improve resin transfer molding (RTM) process efficiency.Meanwhile, due to the injecting unit of varying number can be set as required, determine the quantity of injecting unit according to the species number of resin, additive or catalyst, therefore, can be advantageously used in producing dissimilar composite.
Below described preferred embodiment of the present invention in detail, but it will be appreciated that, after having read above-mentioned instruction content of the present invention, those skilled in the art can make various changes or modifications the present invention.These equivalent form of values fall within the application's appended claims limited range equally.
Claims (23)
1. a resin transfer moulding glue injection machine control system, comprising: controller, HMI man-machine interactive system, servo drive system and glue-injection machine system,
Described HMI man-machine interactive system is for starting setting and the selection of described controller, setting mode of operation and formula, the on-the-spot real-time running state of injecting glue body is shown simultaneously, and produce all kinds of operation measured datas and real-time form, measured curve, history curve and the processing of reporting to the police of setting numerical value;
Described controller, for monitoring the state of glue-injection machine system various kinds of sensors analog signal, switching value signal and servo-driver operating state signal, obtains the selection of control mode and the setting parameter of formula of HMI man-machine interactive system; Simultaneously for controlling the control signal of all kinds of magnetic valve operations of output glue-injection machine system, mode of operation signal and the real-time demonstration information of HMI man-machine interactive system to on-the-spot running status of servo-driver;
Described servo drive system is for the mode of operation information that receives described controller and set and by the mode operation of setting, obtain rotating speed and the positional information of motor in described glue-injection machine system, and the running status of servo-driver self is fed back to described controller, so that described controller is reported to the police, mistake or other protection operation;
Described glue-injection machine system is for carrying out temperature acquisition to each injecting unit raw material and mixed injecting glue, injection pressure is gathered, pressure in each injecting unit raw cylinder is checked, the magnetic valve state of the path to each pipeline checks, and exports described controller to the signal detecting and process gathering; Receive the make-break operation of described controller to each injecting unit pipeline, receive the control operation of described controller to each heater, receive the control operation of described servo drive system to servomotor; Wherein,
Described controller is according to the setting of described HMI man-machine interactive system with from servo drive system described in the signal controlling of described glue-injection machine system and glue-injection machine system, thereby one or more raw materials are required to inject mould according to composite-material formula.
2. control system as claimed in claim 1, is characterized in that, described controller is PLC controller, and described servo-drive system comprises servomotor.
3. a resin transfer moulding glue injection machine control method, described control method adopts the control system described in any one in claim 1-2, it is characterized in that, and described control system is moved by mode below:
Step 1: carry out collection, calculation process and the control of coherent signal in glue-injection machine system;
Step 2: the setting of filling a prescription in HMI man-machine interactive system is also indicated running status;
Step 3: judge whether to meet the condition of work of glue-injection machine system, be to proceed to next step, otherwise proceed to step 1;
Step 4: judge in HMI man-machine interactive system, whether mode of operation has been set, be to complete corresponding operation by the mode of operation of setting, otherwise proceed to step 1.
4. control method as claimed in claim 3, it is characterized in that, described coherent signal comprises surplus, injecting glue temperature, injection pressure, injecting glue flow, injecting glue flow velocity, the actual measurement proportioning of the flow of the temperature of each injecting unit raw material, each injecting unit raw material, each injecting unit raw material.
5. control method as claimed in claim 3, it is characterized in that, in described HMI man-machine interactive system, the instruction of running status comprises that charging setting and the proportioning of each injecting unit raw material in the state of various kinds of sensors signal measured data, all magnetic valves, limit switch, pressure switch in glue injection body system and formula set value.
6. control method as claimed in claim 3, is characterized in that, the condition of work of described glue-injection machine system is that the temperature on each injecting unit discharge pipe all meets the enabling signal after formula requires, and without washout and alarm signal.
7. control method as claimed in claim 3, is characterized in that, described mode of operation has emergent stopping tupe, Manual-cleaning mode of operation and operates pressure control mode and the flow control mode set for charging and discharging; Described pressure control mode and flow control mode are all set with automatic control mode and manual control model; Under automatic control mode, be divided into again continuous operation mode and definite value mode of operation; Manually manual feeder operation mode and the single material returning work pattern of manual discharging mode of operation, the discharging of control model after being divided into charging and transfiniting according to the ruuning situation of piston in resin cylinder after transfiniting.
8. control method as claimed in claim 6, is characterized in that, in the time that temperature conditions does not meet, glue-injection machine system need carry out temperature adjusting, and the job step of its heater is as follows:
Step 1: gather the resin temperature in each component resin discharge pipe;
Step 2: judge whether the temperature gathering all meets formula requirement, be in glue-injection machine control system enabling signal effective, otherwise proceed to next step;
Step 3: controller regulates the temperature of heater, and carries out the circulation of next round.
9. control method as claimed in claim 8, is characterized in that, it is the mode of heater voltage that regulates by module that RTM glue-injection machine system regulates the mode of heater, or is switched on or switched off the mode of heater power source control heat time.
10. control method as claimed in claim 7, it is characterized in that, the injection pressure that described pressure controlled control mode is guarantee system is worked in certain limit, and the control mode of described flow-control is that the injecting glue flow of guarantee system is worked in certain limit.
11. control methods as claimed in claim 3, is characterized in that, under each mode of operation, in RTM glue-injection machine control system, the control of each injecting unit raw material charging magnetic valve is as follows:
Step 1: judged whether purge signal, be to close all charging magnetic valves, otherwise proceed to next step;
Step 2: judge whether, in the charging of Automatic continuous mode of operation, to be to proceed to step 7, otherwise to proceed to next step;
Step 3: judge whether, in the charging of definite value mode of operation, to be to proceed to step 7, otherwise to proceed to next step;
Step 4: judge whether in manual mode charging, be to proceed to step 7, otherwise proceed to next step;
Step 5: determine whether manual mode single feed back, be to proceed to step 7, otherwise proceed to next step;
Step 6: close corresponding injecting unit raw material charging magnetic valve;
Step 7: judge that corresponding injecting unit discharging magnetic valve, whether in open mode, is to proceed to step 5, otherwise open the charging magnetic valve of corresponding injecting unit raw material.
12. control methods as claimed in claim 3, is characterized in that, under each mode of operation, in RTM glue-injection machine control system, the control of each injecting unit raw material discharging magnetic valve is as follows:
Step 1: judged whether purge signal, be to close all discharging magnetic valves, otherwise proceed to next step;
Step 2: judge whether in continuous operation mode discharging, be to proceed to step 6, otherwise proceed to next step;
Step 3: judge whether, in the discharging of definite value mode of operation, to be to proceed to step 6, otherwise to proceed to next step;
Step 4: judge whether in manual mode discharging, be to proceed to step 6, otherwise proceed to next step;
Step 5: close corresponding injecting unit raw material discharging magnetic valve;
Step 6: judge that corresponding injecting unit charging magnetic valve, whether in open mode, is to proceed to step 5, otherwise open the discharging magnetic valve of corresponding injecting unit raw material.
13. control methods as claimed in claim 3, is characterized in that, under the continuous operation mode under automatically controlling, the job step of charging is as follows:
Step 1: judged whether continuous operation mode charging signal, be to proceed to step 3, otherwise proceed to next step;
Step 2: exit continuous feed mode of operation program, continue other programs of operation;
Step 3: calculate the desired flow output valve of each injecting unit under the control mode of place, and be converted to the rotating speed of the motor that each injecting unit is corresponding, control servo-driver, motor is exported by this rotating speed;
Step 4: calculate the actual material quantity of each injecting unit, the actual material flow of each injecting unit, each injecting unit surplus stock amount, injecting glue flow and injecting glue amount, actual proportioning;
Step 5: judged whether continuous feed mode of operation halt signal, had and proceed to step 7, without proceeding to next step;
Step 6: judged whether continuous feed mode of operation termination signal, had and proceed to step 8, otherwise proceeded to step 9;
Step 7: suspend feed pulse output, exit continuous feed program;
Step 8: stop feed pulse output, exit continuous feed program;
Step 9: judged whether that discharging transfinites, be the processing of waiting for that manual discharging is transfinited, otherwise proceed to next step;
Step 10: having judged whether charging settling signal, is to proceed to next step, otherwise continue next round circulation;
Step 11: under continuous operation mode, charging completes, meets continuous operation mode discharging condition, the operation of the line correlation register of going forward side by side.
14. control methods as claimed in claim 3, is characterized in that, the job step of continuous operation mode bottom discharge is as follows:
Step 1: judged whether continuous operation mode discharging signal, be to proceed to step 3, otherwise proceed to next step;
Step 2: exit continuous discharge mode of operation program, continue other programs of operation;
Step 3: calculate the desired flow output valve of each injecting unit under the control mode of place, and be converted to the rotating speed of the motor that each injecting unit is corresponding, control servo-driver, motor is exported by this rotating speed;
Step 4: calculate the actual material quantity of each injecting unit, the actual material flow of each injecting unit, each injecting unit surplus stock amount, injecting glue flow and injecting glue amount, actual proportioning;
Step 5: judged whether continuous discharge mode of operation halt signal, had and proceed to step 7, without proceeding to next step;
Step 6: judged whether continuous discharge mode of operation termination signal, had and proceed to step 8, without proceeding to step 9;
Step 7: suspend feed pulse output, exit continuous discharge program;
Step 8: stop feed pulse output, exit continuous discharge program;
Step 9: judged whether that discharging transfinites, be the processing of waiting for that manual discharging is transfinited, otherwise proceed to next step;
Step 10: having judged whether discharging settling signal, is to proceed to next step, otherwise continue next round circulation;
Step 11: continuous operation mode bottom discharge completes, meets continuous operation mode feed conditions, the operation of the line correlation register of going forward side by side.
15. control methods as claimed in claim 3, is characterized in that, the job step of automatically controlling lower definite value mode of operation charging is as follows:
Step 1: judged whether definite value mode of operation charging signal, be to proceed to step 3, otherwise proceed to next step;
Step 2: exit definite value feeder operation mode, move other programs;
Step 3: the desired flow and the material quantity that calculate each injecting unit under the control mode of place, and be converted to required speed and the position signalling of servomotor that each injecting unit is corresponding and control servo-driver, motor is exported by this rotating speed, obtained needed raw material amount;
Step 4: calculate the actual material quantity of each injecting unit, the actual material flow of each injecting unit, each injecting unit surplus stock amount, injecting glue flow and injecting glue amount, actual proportioning;
Step 5: judged whether definite value feeder operation mode halt signal, had and proceed to step 7, without proceeding to next step;
Step 6: judged whether definite value feeder operation mode termination signal, had and proceed to step 8, without proceeding to step 9;
Step 7: suspend feed pulse output, exit definite value charging program;
Step 8: stop feed pulse output, exit definite value charging program;
Step 9: judged whether that charging transfinites, be the processing of waiting for that manual charging is transfinited, otherwise proceed to next step;
Step 10: judge whether that this definite value mode of operation charging completes, and is to proceed to next step, otherwise carries out next round circulation;
Step 11: this takes turns definite value charging and completes, meets definite value mode of operation discharging condition, and the related register using in the definite value course of work is carried out to reset operation.
16. control methods as claimed in claim 3, is characterized in that, the job step of automatically controlling lower definite value mode of operation discharging is as follows:
Step 1: judged whether definite value mode of operation discharging signal, be to proceed to step 3, otherwise proceed to next step;
Step 2: exit definite value discharging mode of operation, move other programs;
Step 3: the desired flow and the material quantity that calculate each injecting unit under the control mode of place, and be converted to required speed and the position signalling of servomotor that each injecting unit is corresponding and control servo-driver, motor is exported by this rotating speed, obtained needed raw material amount;
Step 4: calculate the actual material quantity of each injecting unit, the actual material flow of each injecting unit, each injecting unit surplus stock amount, injecting glue flow and injecting glue amount, actual proportioning;
Step 5: judged whether definite value discharging mode of operation halt signal, had and proceed to step 7, without proceeding to next step;
Step 6: judged whether definite value discharging mode of operation termination signal, had and proceed to step 8, without proceeding to step 9;
Step 7: suspend feed pulse output, exit definite value discharging program;
Step 8: stop feed pulse output, exit definite value discharging program;
Step 9: judged whether that discharging transfinites, be the processing of waiting for that manual discharging is transfinited, otherwise proceed to next step;
Step 10: judged whether that this definite value mode of operation discharging completes, and is to proceed to next step, otherwise carries out next round circulation;
Step 11: judging whether actual injecting glue amount is less than sets injecting glue amount, is to proceed to next step, otherwise charging completes, definite value charging invalidating signal, the operation of the line correlation register of going forward side by side;
Step 12: this takes turns definite value discharging and completes, allows definite value charging again, and the related register using in the definite value course of work is carried out to reset operation.
17. control methods as claimed in claim 3, is characterized in that, the discharging work under manually controlling is carried out under charging is transfinited, and its job step is as follows:
Step 1: judge whether that charging transfinites, be to proceed to next step, otherwise proceed to step 4;
Step 2: judge whether to be set as manual mode, be to proceed to next step, otherwise proceed to step 4;
Step 3: judged whether washout, had and proceed to next step, otherwise proceeded to step 5;
Step 4: exit the manual charging handling procedure that transfinites, continue other programs of operation;
Step 5: calculate the desired flow output valve of each injecting unit under the control mode of place, and be converted to the rotating speed of the motor that each injecting unit is corresponding, control servo-driver, motor is exported by this rotating speed;
Step 6: calculate the actual material quantity of each injecting unit, the actual material flow of each injecting unit, each injecting unit surplus stock amount, injecting glue flow and injecting glue amount, actual proportioning;
Step 7: judging whether to reach front limit, is to proceed to next step, otherwise allow to proceed manual discharging operation;
Step 8: motor stalling, and complete the operation of related register.
18. control methods as claimed in claim 3, is characterized in that, the charging work under manually controlling is carried out under discharging is transfinited, and its job step is as follows:
Step 1: judge whether that discharging transfinites, be to proceed to next step, otherwise proceed to step 4;
Step 2: judge whether to be set as manual mode, be to proceed to next step, otherwise proceed to step 4;
Step 3: judged whether washout, be to proceed to next step, otherwise proceed to step 5;
Step 4: exit the manual discharging handling procedure that transfinites, continue other programs of operation;
Step 5: calculate the desired flow output valve of each injecting unit under the control mode of place, and be converted to the rotating speed of the motor that each injecting unit is corresponding, control servo-driver, motor is exported by this rotating speed;
Step 6: calculate the actual material quantity of each injecting unit, the actual material flow of each injecting unit, each injecting unit surplus stock amount, injecting glue flow and injecting glue amount, actual proportioning;
Step 7: judging whether to reach rear spacing, is to proceed to next step, otherwise allows to proceed manual feed operation;
Step 8: motor stalling, and complete the operation of related register.
19. control methods as claimed in claim 3, is characterized in that, the material returning work under manually controlling is spacing rear carrying out after each injecting unit raw cylinder piston is all positioned at, and its job step is as follows:
Step 1: having judged whether single feed back signal, is to proceed to next step, otherwise exit manual feed back handling procedure, continue other programs of operation;
Step 2: the charging magnetic valve of opening each injecting unit;
Step 3: the piston of all injecting units is all by the advance distance of a pulse of the mode setting;
Step 4: feed back completes the operation of the line correlation register of going forward side by side, starts the circulation of next round.
20. control methods as claimed in claim 3, is characterized in that, the job step of manually controlling lower cleaning model is as follows:
Step 1: having judged whether purge signal, is to proceed to next step, otherwise enters other program steps 2: close the magnetic valve of all injecting unit chargings and discharging, open the solenoid purge valve of all injecting units;
Step 3: after cleaning, need hand-reset purge signal.
21. control methods as claimed in claim 7, is characterized in that, emergent stopping treatment step is as follows:
Step 1: whether the section of sentencing has washout, has and proceeds to next step, otherwise exits emergent stopping handling procedure, continues other programs of operation;
Step 2: close the enabling signal of RTM glue-injection machine control system, the charging of closing all pipelines of glue-injection machine system, discharging, solenoid purge valve, close servomotor and heater power source.
22. 1 kinds of resin transfering moulding formation devices, is characterized in that, have adopted the control system described in claim 1-2.
23. 1 kinds of composite material forming methods, is characterized in that, have adopted the control method described in any one in claim 4-21.
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| TW201620706A (en) * | 2014-12-15 | 2016-06-16 | Nat Univ Tsing Hua | Method for real-time controlling resin transfer molding process |
| CN106313581B (en) * | 2015-07-10 | 2019-10-29 | 北京化工大学 | A kind of rapid resin infiltration moulding process based on the monitoring of stream leading peak |
| CN108394110B (en) * | 2018-01-31 | 2021-08-13 | 江苏金风科技有限公司 | Perfusion device, perfusion system, and control system and control method applied to perfusion device and perfusion system |
| CN109719972B (en) * | 2019-01-26 | 2023-08-18 | 浙江理工大学 | Resin injection device for preparing composite pipe fitting and control method |
| WO2021044265A1 (en) * | 2019-09-05 | 2021-03-11 | 3M Innovative Properties Company | Method and system of delivering additives for molding |
| CN111204065A (en) * | 2020-01-14 | 2020-05-29 | 苏州瑞意达机械设备有限公司 | Synchronous glue discharging and mixing control system |
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| CN101439570A (en) * | 2008-12-26 | 2009-05-27 | 北京玻钢院复合材料有限公司 | Re-injection process and equipment for poured resin adhesive solution when discharging air bubbles during composite material RTM molding process |
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| CN1887562A (en) * | 2006-07-31 | 2007-01-03 | 刘亚青 | Multipurpose polymer forming machine |
| CN101439570A (en) * | 2008-12-26 | 2009-05-27 | 北京玻钢院复合材料有限公司 | Re-injection process and equipment for poured resin adhesive solution when discharging air bubbles during composite material RTM molding process |
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