CN103009593A - Self-diagnostic system and method of injection molding machine - Google Patents
Self-diagnostic system and method of injection molding machine Download PDFInfo
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- CN103009593A CN103009593A CN2012105923447A CN201210592344A CN103009593A CN 103009593 A CN103009593 A CN 103009593A CN 2012105923447 A CN2012105923447 A CN 2012105923447A CN 201210592344 A CN201210592344 A CN 201210592344A CN 103009593 A CN103009593 A CN 103009593A
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Abstract
The invention discloses a self-diagnostic system and method of an injection molding machine. The self-diagnostic system comprises a detection module connected with the injection molding machine, a parameter analysis module connected with the detection module, and a display module connected with the parameter analysis module. The self-diagnostic method comprises the following steps of: obtaining at least one performance parameter of the injection molding machine in real time, judging whether the performance parameter is in the respective preset range; and respectively displaying a judgment result of each performance parameter. According to the self-diagnostic system, the detection module is used for obtaining the performance parameter of the injection molding machine in real time, the parameter analysis module is used for judging whether the performance parameter is in the preset range, the display module is used for displaying the judgment result, and therefore, the self-diagnosis of injection molding machine failures is realized, and workers can easily know abnormal performance parameter of the current injection molding machine according to the displayed result, thus taking correspondingly measures. Therefore, the embodiment of the invention greatly reduces the workload of the workers, reduces the requirements on working experience of the workers and solves the problem of the prior art.
Description
Technical field
The application relates to the detection technique field, relates in particular to a kind of injection machine self-diagnosable system and method.
Background technology
Injection machine is to utilize mould for plastics to make the main former of the plastic products of various shapes thermoplastic or thermosetting material.The chief component parts of injection machine comprise driver, motor, pump, oil cylinder and corresponding mechanical moving element.Above-mentioned parts connect successively, under the control of host computer, injection machine by driver realize motor startup, stop and rotational speed regulation, thereby realized pressure and Flow-rate adjustment to pump, and then the promotion oil cylinder, finally control mechanical moving element and finish corresponding action.For guaranteeing normal operation, also be provided with fault alarm on the injection machine, when breaking down, the above-mentioned parts of injection machine report to the police.This moment the staff whether need to detect the parameter of critical component of injection machine unusual, determining failure cause, and then take corresponding measure to eliminate fault.Owing to the reason that causes fault alarm is diversified, for the staff who lacks experience, it has to detect one by one a plurality of parameters of a plurality of parts that may cause this fault, and workload is large, efficient is low.
Summary of the invention
In view of this, the application's purpose is to provide a kind of injection machine self-diagnosable system and method, with solve existing injection machine fault detection method efficient low, to the demanding problem of staff's working experience.
For achieving the above object, the application provides following technical scheme:
A kind of injection machine self-diagnosable system comprises:
Detection module is connected with injection machine, is used at least one performance parameter of the described injection machine of Real-time Obtaining;
The parameter analysis module is connected with described detection module, is used for judging that described performance parameter is whether in preset range separately;
Display module is connected with described parameter analysis module, is used for showing respectively the judged result to each performance parameter.
Preferably, described system also comprises:
The counting module that transfinites is connected with described parameter analysis module, is used for when at least one described performance parameter is not in corresponding preset range, and the numerical value that will transfinite adds 1;
The first instruction generation module is connected with described counting module, be used for when the described numerical value that transfinites greater than 1 the time, generate immediately cutoff command, when the described numerical value that transfinites equals 1, generate automatically protection instruction;
The first Executive Module is connected with injection machine with described the first instruction generation module respectively, is used for controlling described injection machine and stopping immediately when receiving described immediately cutoff command;
Automatic protection module is connected with injection machine with described the first instruction generation module respectively, is used for according to described automatic protection instruction the power adjusting of described injection machine to protecting power.
Preferably, described performance parameter comprises moment of torsion and the rotating speed of motor at least;
Described system also comprises:
The moyor analysis module is connected with described parameter analysis module, is used for when described parameter analysis module judges that described performance parameter is all in preset range, calculates motor driven efficient and judges whether described motor driven efficient is unusual;
The motor analysis module, be connected with described moyor analysis module, be used for when described motor driven efficient is unusual, the input current of judging respectively described motor and the ratio Kt of described moment of torsion whether in the first preset range, whether the rotation speed n of described motor in the second preset range, and when described Kt not in the first preset range and/or described n not in the second preset range the time, generate information and the second cutoff command;
The second Executive Module is connected with injection machine with described motor analysis module respectively, is used for controlling described injection machine and stopping behind the second Preset Time when receiving described the second cutoff command;
And/or,
Described performance parameter comprises moment of torsion and the rotating speed of motor at least, and the pressure of pumping and flow;
Described system also comprises:
The pumping efficiency analysis module is connected with described parameter analysis module, is used for when described parameter analysis module judges that described performance parameter is all in preset range, calculates the pumping transmission efficiency and judges whether described pumping transmission efficiency is unusual;
The pumping analysis module, be connected with described pumping efficiency analysis module, be used for reaching transmission efficiency when unusual when described pump, the ratio K that judges respectively described pressure and moment of torsion whether in the 3rd preset range, described flow with the rate of change Qn of described rotation speed change whether in the 4th preset range, and when described K not in the 3rd preset range and/or described Qn not in the 4th preset range the time, generate information and the 3rd cutoff command;
The 3rd Executive Module is connected with injection machine with described pumping analysis module, is used for controlling described injection machine and stopping behind the 3rd Preset Time when receiving described the 3rd cutoff command.
Preferably, when described system comprised the moyor analysis module, described system also comprised:
The motor characteristics analysis module, be connected with described moyor analysis module, be used for judging that when described moyor analysis module described motor driven efficient is when unusual, judge that the ratio In of described input current and rotating speed is whether in the 5th preset range, and when described In is not in the 5th preset range, generate information and the 4th cutoff command;
The 4th Executive Module is connected with injection machine with described motor characteristics analysis module, is used for controlling described injection machine and stopping behind the 4th Preset Time when receiving described the 4th cutoff command;
When described property system comprised the pumping efficiency analysis module, described system also comprised:
Pumping specificity analysis module, be connected with described pumping efficiency analysis module, be used for when described pumping transmission efficiency when unusual, judge that growth rate Pn that described pressure increases with rotating speed is whether in the 6th preset range, and when described Pn is not in the 6th preset range, generate information and the 5th cutoff command;
The 5th Executive Module is connected with described pumping specificity analysis module, is used for controlling described injection machine and stopping behind the 5th Preset Time when receiving described the 5th cutoff command.
Preferably, described performance parameter also comprises at least a in the following parameter: the sectional area of oil cylinder, the position of mechanical moving element and speed, the electric current of driver, voltage and transmission efficiency.
A kind of injection machine self-diagnosing method comprises:
At least one performance parameter of the described injection machine of Real-time Obtaining;
Judge that described performance parameter is whether in preset range separately;
Show respectively the judged result to each performance parameter.
Preferably, described method also comprises:
When at least one described performance parameter was not in corresponding preset range, the numerical value that transfinites added 1;
If the described numerical value that transfinites greater than 1, is then controlled described injection machine and is stopped immediately;
If the described numerical value that transfinites equals 1, then the power adjusting of described injection machine is to protecting power, and shows corresponding information.
Preferably, described performance parameter comprises moment of torsion and the rotating speed of motor at least;
Described method also comprises:
Calculate motor driven efficient and judge whether described motor driven efficient is unusual;
When described motor driven efficient is unusual, the input current of judging respectively described motor and the ratio Kt of described moment of torsion whether in the first preset range, whether the rotation speed n of described motor in the second preset range;
When described Kt not in the first preset range and/or described n not in the second preset range the time, show corresponding information and control described injection machine and behind the second Preset Time, stop;
And/or,
Described performance parameter comprises moment of torsion and the rotating speed of motor at least, and the pressure of pumping and flow;
Described method also comprises:
Calculate the pumping transmission efficiency and judge whether described pumping transmission efficiency is unusual;
When described pumping transmission efficiency is unusual, the ratio K that judges respectively described pressure and moment of torsion whether in the 3rd preset range, described flow with the rate of change Qn of described rotation speed change whether in the 4th preset range;
When described K not in the 3rd preset range and/or described Qn not in the 4th preset range, show corresponding information and control described injection machine and behind the 3rd Preset Time, stop.
Preferably, when judging described motor driven efficient when unusual, described method also comprises:
Judge that the ratio In of described input current and rotating speed is whether in the 5th preset range;
When described In is not in the 5th preset range, shows corresponding information and control described injection machine and behind the 4th Preset Time, stop;
When judging described pumping transmission efficiency when unusual, described method also comprises:
Judge that growth rate Pn that described pressure increases with rotating speed is whether in the 6th preset range;
When described Pn is not in the 6th preset range, shows corresponding information and control described injection machine and behind the 5th Preset Time, stop.
Preferably, described performance parameter also comprises at least a in the following parameter: the sectional area of oil cylinder, the position of mechanical moving element and speed, the electric current of driver, voltage and transmission efficiency.
Can find out from above-mentioned technical scheme, the application is by the performance parameter of Real-time Obtaining injection machine, judge and show that above-mentioned performance parameter is whether in preset range, realized the injection machine fault self-diagnosis, the staff can learn easily that according to the demonstration result which performance parameter of current injection machine is unusual, thereby takes corresponding measure.And have the mode that after alarm equipment alarm, detects again all parts of injection machine now, the embodiment of the present application has greatly reduced staff's workload, has reduced the working experience requirement to the staff, has improved fault diagnosis efficient.
Description of drawings
In order to be illustrated more clearly in the embodiment of the present application or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is some embodiment of the application, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The injection machine self-diagnosing method flow chart that Fig. 1 provides for the embodiment of the present application one;
The injection machine self-diagnosing method flow chart that Fig. 2 provides for the embodiment of the present application two;
The injection machine self-diagnosing method flow chart that Fig. 3 provides for the embodiment of the present application three;
The injection machine self-diagnosing method flow chart that Fig. 4 provides for the embodiment of the present application four;
Motor driven efficient and temperature relation schematic diagram that Fig. 5 provides for the embodiment of the present application;
The schematic diagram that concerns of the electric current that Fig. 6 provides for the embodiment of the present application and the ratio Kt of moment of torsion and temperature t;
The rotation speed n that Fig. 7 provides for the embodiment of the present application and output frequency f concern schematic diagram;
The motor input current that Fig. 8 the embodiment of the present application provides and rotating speed concern schematic diagram;
The ratio K of the pressure that Fig. 9 the embodiment of the present application provides and moment of torsion and temperature t concern schematic diagram;
The pumping flow that Figure 10 provides for the embodiment of the present application and motor rotary speed concern schematic diagram;
The engine pressure that Figure 11 provides for the embodiment of the present application and motor rotary speed concern schematic diagram;
The injection machine self-diagnosable system structure chart that Figure 12 provides for the embodiment of the present application five;
The injection machine self-diagnosable system structure chart that Figure 13 provides for the embodiment of the present application six;
The injection machine self-diagnosable system structure chart that Figure 14 provides for the embodiment of the present application seven;
The injection machine self-diagnosable system structure chart that Figure 15 provides for the embodiment of the present application eight.
The specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present application, the technical scheme in the embodiment of the present application is clearly and completely described, obviously, described embodiment only is the application's part embodiment, rather than whole embodiment.Based on the embodiment among the application, those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all belong to the scope of the application's protection.
The embodiment of the present application discloses a kind of injection machine self-diagnosable system and method, with solve existing injection machine fault detection method efficient low, to the demanding problem of staff's working experience.
With reference to Fig. 1, the injection machine self-diagnosing method that the embodiment of the present application one provides comprises the steps:
S1: at least one performance parameter of the described injection machine of Real-time Obtaining;
Concrete, can detect in real time injection machine by checkout equipments such as sensor, speed changers, thereby obtain its performance parameter.
S2: judge that described performance parameter is whether in preset range separately;
Concrete, can judge described performance parameter whether in preset range separately by data processing equipments such as single-chip microcomputers, and generate judged result.
S3: show respectively the judged result to each performance parameter.
Concrete, the actuating unit of display with step S2 can be connected, by among this display step display S2 to the judged result of each performance parameter.The occurrence that certainly, also can show simultaneously each performance parameter.
By the said method step as can be known, the embodiment of the present application is by the performance parameter of Real-time Obtaining injection machine, judge and show that above-mentioned performance parameter is whether in preset range, realized the injection machine fault self-diagnosis, the staff can learn easily that according to the demonstration result which performance parameter of current injection machine is unusual, thereby takes corresponding measure.And have the mode that after alarm equipment alarm, detects again all parts of injection machine now, the embodiment of the present application has greatly reduced staff's workload, has reduced the working experience requirement to the staff, has improved fault diagnosis efficient.
Referring to Fig. 2, the injection machine self-diagnosing method that the embodiment of the present application two provides comprises the steps:
S1: at least one performance parameter of the described injection machine of Real-time Obtaining;
S2: judge described performance parameter whether in preset range separately, when at least one described performance parameter is not in corresponding preset range, execution in step S4, otherwise execution in step S3;
S3: the numerical value x that will transfinite sets to 0, and shows respectively the judged result to each performance parameter, and this self diagnosis finishes;
S4: the numerical value x that will transfinite adds 1, and shows respectively the judged result to each performance parameter;
S5: when x greater than 1 the time, control described injection machine and stop immediately; When x equals 1, then with the power adjusting of injection machine to protecting power, and show corresponding information.
The power adjusting of injection machine is different because of performance parameter to the concrete grammar of protecting power.For example; if exceeding the performance parameter of preset range is the rotating speed of motor; then can make the power of injection machine reach protection power by the electric current of adjusting driver output; if exceeding the performance parameter of preset range is the pressure of pumping, then can make the power of injection machine reach protection power by the voltage of adjusting driver output.
According to staff's experience or test of many times, preset and the stored adjustment parameter list.What record in this adjusting parameter list is each performance parameter when unusual, and the power of injection machine is transferred to the parameter that protection power need to be regulated.When judging that certain performance parameter occurs when unusual first; can inquire about this adjusting parameter list by controller and be regulated accordingly parameter; and automatically regulate power adjusting that this parameter makes injection machine to protecting power, alleviate the damage that unusual performance parameter causes injection machine.When the unusual number of times of certain performance parameter surpasses 1 time, injection machine is stopped, in order to avoid injection machine is caused badly damaged.Therefore, the embodiment of the present application has realized automatic diagnosis and the automatic protection of injection machine.
With reference to Fig. 3, the injection machine self-diagnosing method that the embodiment of the present application three provides comprises the steps:
S1: the performance parameter of Real-time Obtaining injection machine; This performance parameter comprises moment of torsion J and the rotation speed n of motor at least;
S2: judge above-mentioned performance parameter whether in preset range separately, when at least one performance parameter is not in corresponding preset range, execution in step S3, if above-mentioned performance parameter all in preset range separately, execution in step S5 then;
S3: show respectively the judged result to each performance parameter, and the numerical value x that will transfinite adds 1;
S4: when x greater than 1 the time, the control injection machine stops immediately; When x equals 1, then with the power adjusting of injection machine to protecting power, and show corresponding information, this self diagnosis finishes;
S5: show respectively the judged result to each performance parameter, the numerical value x that will transfinite sets to 0;
S6: calculate the motor driven efficiency eta
mIf, the motor driven efficiency eta
mUnusually, execution in step S7 then, otherwise execution in step S9;
Under normal circumstances, motor driven efficiency eta
mWith the relation of the temperature t of motor as shown in Figure 5.Can be with Fig. 5 with two bit array (η
m[i], t[i]) the form storage, if Current Temperatures is t[4], by inquiring about this two-dimensional array (η
m[i], t[i]) normal value that can obtain corresponding motor driven efficient should be η
mAnd then judge η [4],
mWhether at [η
m[4]-and Δ η, η
m[4]+Δ η] in, if so, then judge the motor driven efficiency eta
mNormally, otherwise judge η
mUnusually.Wherein, the value of Δ η can be set according to actual conditions.
S7: the input current I that judges respectively motor and the ratio Kt of moment of torsion J whether in the first preset range, whether the rotation speed n of motor in the second preset range;
Wherein, whether the input current I that judges motor and the ratio Kt of moment of torsion the J concrete grammar in the first preset range be as follows: under normal circumstances, the relation of the temperature t of Kt and motor as shown in Figure 6, equally with Fig. 6 with two-dimensional array (Kt[i], t[i]) form storage, if Current Temperatures is t[4], by inquire about this two-dimensional array (Kt[i], t[i]) normal value that can obtain corresponding input current I and the ratio of moment of torsion J should be Kt[4], and then can judge that whether Kt is at the first preset range [Kt[4]-Δ Kt, Kt[4]+Δ Kt] in.
As shown in Figure 7, under normal circumstances, the rotation speed n of motor increases with the increase of output frequency f, and the two is directly proportional, and relational expression is that n=60*f/p(p is the magnetic pole logarithm of motor, is generally 4).So can calculate the rated speed n ' of current motor=60*f/p according to the output frequency f of motor, so can determine the second preset range for [n '-Δ n, n '+Δ n].Therefore, the rotation speed n of judging motor whether in the second preset range, namely judge n whether [n '-Δ n, n '+Δ n] in.
S8: the judged result of step display S7, and when Kt not in the first preset range or rotation speed n not in the second preset range the time, the control injection machine stops behind the second Preset Time, this self diagnosis finishes;
The embodiment of the present application also can further show fault message except showing the direct judged result such as " Kt is in the first preset range ", " n is not in the second preset range ", make things convenient for the staff directly to take counter-measure.Shown in A point among Fig. 6, Kt〉Kt[4]+during Δ Kt, can further show fault message " current transformer damage ", the staff directly checks current transformer after seeing this information, determines and gets rid of fault; For another example among Fig. 6 shown in the B point, Kt＜Kt[4]-during Δ Kt, can further show fault message " the too high or demagnetization of motor temperature "; N shown in Fig. 7 A point and for example〉during n ', can further point out fault message " parameters of hydraulic motor is set wrong ", after the staff sees this information, check immediately and reset the series of parameters of motor, make the motor normal operation.
S9: whether the input current I that judges motor and the ratio In of rotation speed n in the 5th preset range, show this judged result, and when judging that In is not in the 5th preset range, control described injection machine and stop that this self diagnosis finishes behind the 4th Preset Time.
Under normal circumstances, input current I increases with the increase of rotation speed n, and namely shown in Fig. 8 (being motor characteristics figure), I is directly proportional with n, and ratio is In0; If the ratio In of current I and n then shows information " input current I is unusual with the ratio of rotation speed n " not in the 5th preset range [In0-Δ, In0+ Δ], and control described injection machine and behind the 4th Preset Time, stop.
In addition, above-mentioned the second Preset Time and the 4th Preset Time can be cycle of operation of one minute or injection machine etc.When fault is not serious, behind Preset Time, stop the damage to injection machine of to avoid stopping immediately.After injection machine stopped, the operations staff can according to showing that the result further safeguards injection machine, thoroughly fix a breakdown.
By the said method step as can be known, the embodiment of the present application is judging that performance parameter all without unusually the time, do not assert directly that injection machine is normal, but to the motor driven efficiency eta
m, Kt, n and motor characteristics In do further to judge, thereby realize the fault pre-alarming of injection machine, in time find the hidden danger that injection machine exists, before fault alarm is reported to the police, eliminate in advance this potential faults, reduce the infringement to injection machine.
Referring to Fig. 4, the injection machine self-diagnosing method that the embodiment of the present application four provides comprises the steps:
S1: the performance parameter of Real-time Obtaining injection machine; This performance parameter comprises moment of torsion J and the rotation speed n of motor at least, and the pressure P of pumping and flow Q;
S2: judge above-mentioned performance parameter whether in preset range separately, when at least one performance parameter is not in corresponding preset range, execution in step S3, if above-mentioned performance parameter all in preset range separately, execution in step S5 then;
S3: show respectively the judged result to each performance parameter, and the numerical value x that will transfinite adds 1;
S4: when x greater than 1 the time, the control injection machine stops immediately; When x equals 1, then with the power adjusting of injection machine to protecting power, and show corresponding information, this self diagnosis finishes;
S5: show respectively the judged result to each performance parameter, the numerical value x that will transfinite sets to 0;
S6: calculate pumping transmission efficiency η
bIf, pumping transmission efficiency η
bUnusually, execution in step S7 then, otherwise execution in step S9;
Judge η
bUnusual concrete grammar can be with reference to above judging the motor driven efficiency eta among the embodiment three
mWhether unusual, do not repeat them here.
S7: the ratio K that judges respectively pressure P and moment of torsion J whether in the 3rd preset range, whether the ratio Qn of flow Q and rotation speed n in the 4th preset range;
Wherein, the concrete grammar in the 3rd preset range is as follows to judge the ratio K of pressure P and moment of torsion J: under normal circumstances, the relation of the temperature t of K and pumping as shown in Figure 9, with the form storage of Fig. 9 with two bit array (K[i], t[i]), if Current Temperatures is t[4], by inquire about this two-dimensional array (K[i], t[i]) normal value that can obtain corresponding input current I and the ratio of moment of torsion J should be K[4], and then can judge that whether K is at the first preset range [K[4]-Δ K, K[4]+Δ K] in.
Same, the concrete grammar in the 4th preset range is as follows to judge rate of change Qn that flow Q changes with rotation speed n: under normal circumstances, as shown in figure 10, the satisfied Q=n0+Qn0*n that concerns of Q and n; If current rate of change Qn is not in the 4th preset range [Qn0-Δ Qn, Qn0+ Δ Qn].
S8: the judged result of step display S7, and when K not in the 3rd preset range or described Qn not in the 4th preset range the time, the control injection machine stops behind the 3rd Preset Time, this self diagnosis finishes;
The embodiment of the present application also can further show fault message except showing the direct judged result such as " K is in the 3rd preset range ", " Qn is not in the 4th preset range ", make things convenient for the staff directly to take counter-measure.Shown in A point among Fig. 9, K〉K[4]+during Δ K, can further show fault message " pressure inductor damage ", the staff directly checks pressure inductor after seeing this information, determines and gets rid of fault; For another example among Fig. 9 shown in the B point, K＜K[4]-during Δ K, can further show fault message " pumping damage "; If Qn〉Qn0+ Δ Qn(is namely shown in A point among Figure 10) or Qn＜Qn0-Δ Qn(namely shown in B point among Figure 10), can further show fault message " the pumping wave is pressed unstable ".
S9: judge that growth rate Pn that pressure P increases with rotation speed n whether in the 6th preset range, show this judged result, and when judging that Pn is not in the 6th preset range, the control injection machine stops behind the 5th Preset Time, this self diagnosis end.
Under normal circumstances, the relation of pressure P and rotation speed n as shown in figure 11, along with the increase of n, the growth rate Pn first increases and then decreases that P increases with n.Can be with the form storage of Figure 11 with two-dimensional array (Pn[i], n[i]), if current rotating speed is n[3], the inquiry two-dimensional array (Pn[i], n[i]) can obtain corresponding growth rate normal value Pn[3]; And then can judge that whether growth rate Pn that P and n according to Real-time Obtaining calculate is at the 6th preset range [Pn[3]-Δ Pn, Pn[3]+Δ Pn] in.If judge that Pn is not at [Pn[3]-Δ Pn, Pn[3]+Δ Pn] in, then show fault message " pumping is unusual ", control simultaneously injection machine and behind the 5th Preset Time, stop.
In addition, above-mentioned the 3rd Preset Time and the 5th Preset Time can be cycle of operation of one minute or injection machine etc.When fault is not serious, behind Preset Time, stop the damage to injection machine of to avoid stopping immediately.After injection machine stopped, the operations staff can according to showing that the result further safeguards injection machine, thoroughly fix a breakdown.
By the said method step as can be known, the embodiment of the present application is judging that performance parameter all without unusually the time, do not assert directly that injection machine is normal, but to pumping transmission efficiency η
b, K, Qn and motor characteristics Pn do further to judge, thereby realize the fault pre-alarming of injection machine, in time find the hidden danger that injection machine exists, before fault alarm is reported to the police, eliminate in advance this potential faults, reduce the infringement to injection machine.
Apparent, can add on the basis of the embodiment of the present application four the step S5 of the embodiment of the present application three ~ S8, realize simultaneously the self diagnosis to injection machine motor and pumping.
In other embodiment of the application, for realizing the self diagnosis of the injection machine building blocks such as oil cylinder, mechanical moving element, driver, the performance parameter of stating that above-mentioned all embodiment obtain also comprises following parameter: the sectional area of oil cylinder, the position of mechanical moving element and speed, the electric current of driver, voltage and transmission efficiency.
Embodiment is corresponding with said method, and the embodiment of the present application five provides a kind of injection machine self-diagnosable system.As shown in figure 12, this system is comprised of detection module 1, parameter analysis module 2 and display module 3.
Wherein, parameter analysis module 2 is connected with display module with injection machine 0, detection module 1 respectively and is connected.The course of work of this system is as follows: at least one performance parameter of detection module 1 Real-time Obtaining injection machine; Parameter analysis module 2 judges that performance parameter that detection module 1 obtains is whether in preset range separately; Display module 3 difference display parameters analysis modules 2 are to the judged result of each performance parameter.
By said structure and the course of work as can be known, the embodiment of the present application is by the performance parameter of detection module 1 Real-time Obtaining injection machine, parameter analysis module 2 judges that above-mentioned performance parameter is whether in preset range, and by display module 3 demonstration judged results, realized the injection machine fault self-diagnosis, the staff can learn that easily which performance parameter of current injection machine is unusual by checking display module 3, thereby takes corresponding measure.And have the mode that after alarm equipment alarm, detects again all parts of injection machine now, the embodiment of the present application has greatly reduced staff's workload, has reduced the working experience requirement to the staff, has improved fault diagnosis efficient.
With reference to Figure 13, the injection machine self-diagnosable system that the embodiment of the present application six provides comprises detection module 1, parameter analysis module 2, display module 3, the counting module 41 that transfinites, the first instruction generation module 42, the first Executive Module 43 and automatic protection module 44.
Wherein, parameter analysis module 2 is connected with display module with detection module 1 respectively and is connected, transfinite counting module 41 respectively with parameter analysis module 2 be connected instruction generation module 42 and be connected, the first Executive Module 43 is connected with injection machine with the first instruction generation module 42 respectively and is connected, and automatic protection module 44 is connected with injection machine with the first instruction generation module 42 respectively and is connected; The first instruction generation module 42 also is connected with display module 3.
The course of work of said system is as follows: at least one performance parameter of detection module 1 Real-time Obtaining injection machine; Parameter analysis module 2 judges that performance parameter that detection module 1 obtains is whether in preset range separately; When parameter analysis module 2 is judged when having at least a performance parameter not in corresponding preset range, the counting module 41 that the transfinites numerical value that will transfinite adds 1; The first instruction generation module 42 is according to transfiniting the corresponding instruction of numerical generation: the numerical value that transfinites was greater than 1 o'clock, generate immediately cutoff command, when the numerical value that transfinites equals 1, generate automatically protection instruction and corresponding information (transfinite 1 time the time such as the performance parameter A of injection machine, this information can be " parameter A transfinites 1 time "); When the first Executive Module 43 received the immediately cutoff command of the first instruction generation module 42 generations, control injection machine 0 stopped immediately; Automatic protection module 44 according to described automatic protection instruction with the power adjusting of described injection machine to protecting power.Display module 3 difference display parameters analysis modules 2 are to the judged result of each performance parameter and the information of the first instruction generation module 42 generations.
Concrete, the power adjusting of injection machine is different because of performance parameter to the concrete grammar of protecting power.Can be in automatic protection module 44 or other storage mediums the corresponding table of pre-stored performance parameter and power adjusting parameter; automatically comprised the not parameter name of the performance parameter in preset range in the protection instruction; automatic protection module 44 obtains corresponding power adjusting parameter by inquiring about above-mentioned corresponding table; and then regulate this power adjusting parameter, make the power of injection machine reach protection power.For example; if exceeding the performance parameter of preset range is the rotating speed of motor; then can make by the output current of adjusting driver the power of injection machine reach protection power; if exceeding the performance parameter of preset range is the pressure of pumping, then can make by the output voltage of adjusting driver the power of injection machine reach protection power.Therefore, the embodiment of the present application has realized injection machine automatic diagnosis and automatic protection.
With reference to Figure 14, the injection machine self-diagnosable system that the embodiment of the present application seven provides comprises detection module 1, parameter analysis module 2, display module 3, moyor analysis module 51, motor analysis module 52, the second Executive Module 53, motor characteristics analysis module 54 and the 4th Executive Module 55.
Wherein, parameter analysis module 2 is connected with display module with detection module 1 respectively and is connected, and moyor analysis module 51 is connected with the motor characteristics analysis module with parameter analysis module 2, motor analysis module 52 respectively and is connected; The second Executive Module 53 is connected with injection machine with motor analysis module 52 respectively and is connected; The 4th Executive Module 55 is connected with injection machine with motor characteristics analysis module 54 respectively and is connected; Motor analysis module 52 is connected with the motor characteristics analysis module and also is connected with display module 3 respectively.
The course of work of this system is as follows: the performance parameter of detection module 1 Real-time Obtaining injection machine, this performance parameter comprise moment of torsion and the rotating speed of motor at least; Parameter analysis module 2 judges that performance parameter that detection module 1 obtains is whether in preset range separately; When parameter analysis module 2 judged that above-mentioned performance parameter is all in preset range, moyor analysis module 51 calculated the motor driven efficiency eta
mAnd judgement η
mWhether unusual.When moyor analysis module 51 is judged η
mWhen unusual, the input current that motor analysis module 52 is further judged motor and the ratio Kt of moment of torsion whether in the first preset range, whether n in the second preset range, and when described Kt not in the first preset range or n not in the second preset range the time, generate information and the second cutoff command; When the second Executive Module 53 received the second cutoff command, control injection machine 0 stopped behind the second Preset Time.When moyor analysis module 51 is judged η
mWhen unusual, the ratio In that motor characteristics analysis module 54 is further judged input current and rotating speed whether in the 5th preset range, and when In is not in the 5th preset range, generation information and the 4th cutoff command; When the 4th Executive Module 55 received described the 4th cutoff command, control injection machine 0 stopped behind the 4th Preset Time; Display module 3 difference display parameters analysis modules 2 are to the judged result of each performance parameter and the information of motor analysis module 52 and 54 generations of motor characteristics analysis module.
In addition, above-mentioned the second Preset Time and the 4th Preset Time can be cycle of operation of one minute or injection machine etc.When fault is not serious, behind Preset Time, stop the damage to injection machine of to avoid stopping immediately.After injection machine stopped, the operations staff can according to showing that the result further safeguards injection machine, thoroughly fix a breakdown.
The specific works mode of each part of said system can be with reference to embodiment of the method three above.
By the said method step as can be known, the embodiment of the present application judges that at the parameter analysis module performance parameter is all without unusually the time, do not assert directly that injection machine is normal, but pass through moyor analysis module, motor analysis module, the second Executive Module, motor characteristics analysis module and the 4th Executive Module to the motor driven efficiency eta
m, Kt, U
0Do further to judge with motor characteristics In, thereby the fault pre-alarming of realization injection machine is in time found the hidden danger that injection machine exists, and before fault alarm is reported to the police, eliminates in advance this potential faults, reduces the infringement to injection machine.
With reference to Figure 15, the injection machine self-diagnosable system that the embodiment of the present application eight provides comprises detection module 1, parameter analysis module 2, display module 3, pumping efficiency analysis module 61, pumping analysis module 62, the 3rd Executive Module 63, pumping specificity analysis module 64 and the 5th Executive Module 65.
Wherein, parameter analysis module 2 is connected with display module with detection module 1 respectively and is connected, and pumping efficiency analysis module 61 is connected with pumping specificity analysis module with parameter analysis module 2, pumping analysis module 62 respectively and is connected; The 3rd Executive Module 63 is connected with injection machine with pumping analysis module 62 respectively and is connected; The 5th Executive Module 65 is connected with injection machine with pumping specificity analysis module 64 respectively and is connected; Pumping analysis module 62 is connected with pumping specificity analysis module and also is connected with display module 3 respectively.
The course of work of this system is as follows: the performance parameter of detection module 1 Real-time Obtaining injection machine, this performance parameter comprise moment of torsion and the rotating speed of motor at least, and the pressure of pumping and flow; Parameter analysis module 2 judges that performance parameter that detection module 1 obtains is whether in preset range separately; When parameter analysis module 2 judged that above-mentioned performance parameter is all in preset range, moyor analysis module 51 calculated pumping transmission efficiency η
bAnd judgement η
bWhether unusual.When pumping efficiency analysis module 61 is judged η
bWhen unusual, the pressure that pumping analysis module 62 is further judged pumping and the ratio K of moment of torsion whether in the 3rd preset range, flow with the rate of change Qn of rotation speed change whether in the 4th preset range, and when K not in the 3rd preset range or Qn not in the 4th preset range the time, generate information and the 3rd cutoff command; When the 3rd Executive Module 63 received the 3rd cutoff command, control injection machine 0 stopped behind the 3rd Preset Time.When pumping efficiency analysis module 61 is judged η
bWhen unusual, pumping specificity analysis module 64 is further judged growth rate Pn that pressure increases with rotating speed whether in the 6th preset range, and when Pn is not in the 6th preset range, generation information and the 5th cutoff command; When the 5th Executive Module 65 received described the 5th cutoff command, control injection machine 0 stopped behind the 5th Preset Time; Display module 3 difference display parameters analysis modules 2 are to the judged result of each performance parameter and the information of pumping analysis module 62 and 64 generations of pumping specificity analysis module.
In addition, above-mentioned the 3rd Preset Time and the 5th Preset Time can be cycle of operation of one minute or injection machine etc.When fault is not serious, behind Preset Time, stop the damage to injection machine of to avoid stopping immediately.After injection machine stopped, the operations staff can according to showing that the result further safeguards injection machine, thoroughly fix a breakdown.
The working method of each part of said system can be with reference to embodiment of the method four above.
By said structure and the course of work as can be known, the embodiment of the present application judges that at the parameter analysis module performance parameter is all without unusually the time, do not assert directly that injection machine is normal, but pass through pumping efficiency analysis module, pumping analysis module, the 3rd Executive Module, pumping specificity analysis module and the 5th Executive Module to pumping transmission efficiency η
b, K, Qn and motor characteristics Pn do further to judge, thereby realize the fault pre-alarming of injection machine, in time find the hidden danger that injection machine exists, before fault alarm is reported to the police, eliminate in advance this potential faults, reduce the infringement to injection machine.
Apparent, can add on the basis of the embodiment of the present application eight moyor analysis module 51, motor analysis module 52, the second Executive Module 53, motor characteristics analysis module 54 and the 4th Executive Module 55 of the embodiment of the present application seven, thereby realize simultaneously the self diagnosis to injection machine motor and pumping.
In the application's other system embodiment, for realizing the self diagnosis of the injection machine building blocks such as oil cylinder, mechanical moving element, driver, the performance parameter that the detection module of above-mentioned all system embodiments obtains also comprises following parameter: the sectional area of oil cylinder, the position of mechanical moving element and speed, the electric current of driver, voltage and transmission efficiency.
One of ordinary skill in the art will appreciate that all or part of flow process that realizes in above-described embodiment method, to come the relevant hardware of instruction to finish by computer program, described program can be stored in the computer read/write memory medium, described program can comprise the flow process such as the embodiment of above-mentioned each side method when carrying out.Wherein, described storage medium can be magnetic disc, CD, read-only store-memory body (Read-Only Memory, ROM) or store-memory body (Random Access Memory, RAM) etc. at random.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the application.Multiple modification to these embodiment will be apparent concerning those skilled in the art, and General Principle as defined herein can in the situation of the spirit or scope that do not break away from the application, realize in other embodiments.Therefore, the application will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. an injection machine self-diagnosable system is characterized in that, comprising:
Detection module is connected with injection machine, is used at least one performance parameter of the described injection machine of Real-time Obtaining;
The parameter analysis module is connected with described detection module, is used for judging that described performance parameter is whether in preset range separately;
Display module is connected with described parameter analysis module, is used for showing respectively the judged result to each performance parameter.
2. system according to claim 1 is characterized in that, also comprises:
The counting module that transfinites is connected with described parameter analysis module, is used for when at least one described performance parameter is not in corresponding preset range, and the numerical value that will transfinite adds 1;
The first instruction generation module is connected with described counting module, be used for when the described numerical value that transfinites greater than 1 the time, generate immediately cutoff command, when the described numerical value that transfinites equals 1, generate automatically protection instruction;
The first Executive Module is connected with injection machine with described the first instruction generation module respectively, is used for controlling described injection machine and stopping immediately when receiving described immediately cutoff command;
Automatic protection module is connected with injection machine with described the first instruction generation module respectively, is used for according to described automatic protection instruction the power adjusting of described injection machine to protecting power.
3. described system according to claim 1 is characterized in that described performance parameter comprises moment of torsion and the rotating speed of motor at least;
Described system also comprises:
The moyor analysis module is connected with described parameter analysis module, is used for when described parameter analysis module judges that described performance parameter is all in preset range, calculates motor driven efficient and judges whether described motor driven efficient is unusual;
The motor analysis module, be connected with described moyor analysis module, be used for when described motor driven efficient is unusual, the input current of judging respectively described motor and the ratio Kt of described moment of torsion whether in the first preset range, whether the rotation speed n of described motor in the second preset range, and when described Kt not in the first preset range and/or described n not in the second preset range the time, generate information and the second cutoff command;
The second Executive Module is connected with injection machine with described motor analysis module respectively, is used for controlling described injection machine and stopping behind the second Preset Time when receiving described the second cutoff command;
And/or,
Described performance parameter comprises moment of torsion and the rotating speed of motor at least, and the pressure of pumping and flow;
Described system also comprises:
The pumping efficiency analysis module is connected with described parameter analysis module, is used for when described parameter analysis module judges that described performance parameter is all in preset range, calculates the pumping transmission efficiency and judges whether described pumping transmission efficiency is unusual;
The pumping analysis module, be connected with described pumping efficiency analysis module, be used for reaching transmission efficiency when unusual when described pump, the ratio K that judges respectively described pressure and moment of torsion whether in the 3rd preset range, described flow with the rate of change Qn of described rotation speed change whether in the 4th preset range, and when described K not in the 3rd preset range and/or described Qn not in the 4th preset range the time, generate information and the 3rd cutoff command;
The 3rd Executive Module is connected with injection machine with described pumping analysis module, is used for controlling described injection machine and stopping behind the 3rd Preset Time when receiving described the 3rd cutoff command.
4. system according to claim 3 is characterized in that, when described system comprised the moyor analysis module, described system also comprised:
The motor characteristics analysis module, be connected with described moyor analysis module, be used for judging that when described moyor analysis module described motor driven efficient is when unusual, judge that the ratio In of described input current and rotating speed is whether in the 5th preset range, and when described In is not in the 5th preset range, generate information and the 4th cutoff command;
The 4th Executive Module is connected with injection machine with described motor characteristics analysis module, is used for controlling described injection machine and stopping behind the 4th Preset Time when receiving described the 4th cutoff command;
When described property system comprised the pumping efficiency analysis module, described system also comprised:
Pumping specificity analysis module, be connected with described pumping efficiency analysis module, be used for when described pumping transmission efficiency when unusual, judge that growth rate Pn that described pressure increases with rotating speed is whether in the 6th preset range, and when described Pn is not in the 6th preset range, generate information and the 5th cutoff command;
The 5th Executive Module is connected with described pumping specificity analysis module, is used for controlling described injection machine and stopping behind the 5th Preset Time when receiving described the 5th cutoff command.
5. each described system is characterized in that according to claim 1 ~ 4, and described performance parameter also comprises at least a in the following parameter: the sectional area of oil cylinder, the position of mechanical moving element and speed, the electric current of driver, voltage and transmission efficiency.
6. an injection machine self-diagnosing method is characterized in that, comprising:
At least one performance parameter of the described injection machine of Real-time Obtaining;
Judge that described performance parameter is whether in preset range separately;
Show respectively the judged result to each performance parameter.
7. method according to claim 6 is characterized in that, also comprises:
When at least one described performance parameter was not in corresponding preset range, the numerical value that transfinites added 1;
If the described numerical value that transfinites greater than 1, is then controlled described injection machine and is stopped immediately;
If the described numerical value that transfinites equals 1, then the power adjusting of described injection machine is to protecting power, and shows corresponding information.
8. method according to claim 6 is characterized in that, described performance parameter comprises moment of torsion and the rotating speed of motor at least;
Described method also comprises:
Calculate motor driven efficient and judge whether described motor driven efficient is unusual;
When described motor driven efficient is unusual, the input current of judging respectively described motor and the ratio Kt of described moment of torsion whether in the first preset range, whether the rotation speed n of described motor in the second preset range;
When described Kt not in the first preset range and/or described n not in the second preset range the time, show corresponding information and control described injection machine and behind the second Preset Time, stop;
And/or,
Described performance parameter comprises moment of torsion and the rotating speed of motor at least, and the pressure of pumping and flow;
Described method also comprises:
Calculate the pumping transmission efficiency and judge whether described pumping transmission efficiency is unusual;
When described pumping transmission efficiency is unusual, the ratio K that judges respectively described pressure and moment of torsion whether in the 3rd preset range, described flow with the rate of change Qn of described rotation speed change whether in the 4th preset range;
When described K not in the 3rd preset range and/or described Qn not in the 4th preset range, show corresponding information and control described injection machine and behind the 3rd Preset Time, stop.
9. method according to claim 8 is characterized in that, when judging described motor driven efficient when unusual, described method also comprises:
Judge that the ratio In of described input current and rotating speed is whether in the 5th preset range;
When described In is not in the 5th preset range, shows corresponding information and control described injection machine and behind the 4th Preset Time, stop;
When judging described pumping transmission efficiency when unusual, described method also comprises:
Judge that growth rate Pn that described pressure increases with rotating speed is whether in the 6th preset range;
When described Pn is not in the 6th preset range, shows corresponding information and control described injection machine and behind the 5th Preset Time, stop.
10. each described system is characterized in that according to claim 6 ~ 9, and described performance parameter also comprises at least a in the following parameter: the sectional area of oil cylinder, the position of mechanical moving element and speed, the electric current of driver, voltage and transmission efficiency.
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