CN106292757B - A kind of method and device for adjusting ceramic powder brick machine and moving beam movement velocity - Google Patents
A kind of method and device for adjusting ceramic powder brick machine and moving beam movement velocity Download PDFInfo
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- CN106292757B CN106292757B CN201510312746.0A CN201510312746A CN106292757B CN 106292757 B CN106292757 B CN 106292757B CN 201510312746 A CN201510312746 A CN 201510312746A CN 106292757 B CN106292757 B CN 106292757B
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Abstract
The present invention relates to a kind of methods that adjusting ceramic powder brick machine moves beam movement velocity, comprising the following steps: step 1: judging whether it is and suppress for the first time；Step 2: judgement compacting frequency mode；Step 3: the relatively more synchronous waiting time；Step 4: calculating the location point that accelerating sections terminates and the location point to reduce speed now；Step 5: control brake beam descending motion；Step 6: entering compacting link, and after the completion of compacting, adjust the rate of climb of dynamic beam, terminate this time compacting process；Step 7: change top tank air pressure, and cyclic pressing is carried out according to the parameter setting of asynchronous frequencies, count each stage time-consuming and total time-consuming；Step 8: the air pressure in adjustment top tank terminates this time compacting process.Compared with the prior art, the present invention can reduce the probability that ceramic brick press generates bubble oil in the dynamic beam idle running rapid decrease stage, improve the reliability of equipment.
Description
Technical field
The present invention relates to a kind of method of adjustment, especially a kind of side for adjusting ceramic powder brick machine and moving beam movement velocity
Method；The invention further relates to a kind of devices using the above method.
Background technique
The lost motion of the dynamic beam of ceramic brick press is most at present are as follows: accelerates to some speed from movement starting position, fastly
Then speed reaches target position front reduction gear value command speed, then close to target position by idle running stroke.Simultaneously because pottery
The hydraulic automatic brick machine oil cylinder area of porcelain is big, therefore carrys out filling liquid using prefill valve mostly in dynamic beam idle running descending motion, to reach
Quick filling liquid and the purpose for saving energy.
Referring to Fig. 1, existing ceramics press includes top tank 1, prefill valve control oil cylinder 2, prefill valve opening and closing control
Valve system 3, filling liquid valve body 4, master cylinder 5, master cylinder pressurized control valve system 6, dynamic beam motion control valve system 7, dynamic beam piston
8, Liang Sicheng sensor unit 9, oil liquid 10 and compressed air control valve 11 are moved.
It is loaded with enough transmissions oil liquid 10 in the top tank 1, and has gas of enough spaces as compressed air
Cavity, the compressed air in the cavity are controlled disengaging by compressed air control valve 11 and are kept.The compressed air of the gas cavity is used
Auxiliary power is provided when filling liquid quick from the downward fuel tank of top tank for oil liquid.
When dynamic beam idle running moves downward, master cylinder pressurizing valve control control system 6 is closed, and moves beam motion control valve system 7
Draining valve (not shown) open, master cylinder 5 and dynamic beam piston 8 composition main oil cylinder piston rod cavity in oil liquid be discharged, simultaneously
Prefill valve opening and closing control valve system 3 starts, and prefill valve control oil cylinder 2 moves down, and drives filling liquid valve body 4 to be pushed downwards shifting, contains
Oil liquid 10 in top tank 1 is entered by filling liquid channel in the plunger shaft of master cylinder 5 and dynamic beam piston 8 composition.It is formed empty
To the big flow filling liquid of main oil cylinder piston chamber during journey descending motion.In filling process, oil liquid from experienced large tank →
Liquid-filling pipe → oil cylinder piston chamber process.
During decline, since the gas cavity of top tank constantly increases, compressed air pressure will constantly reduce.As
Absolute pressure also synchronous reduction of the filling liquid channel in oil stream downstream due to liquid resistance, shape mutation etc., in pipe.When compression is empty
When gas drops to certain value, the oil flow pressure in pipe is lower than the air separation pressure being dissolved in oil liquid, and air is from oil liquid
It is precipitated and is combined into bubble.Influence of the bubble to hydraulic system in oil liquid is very unfavorable, and the transmission that can reduce hydraulic oil is rigid
Degree reduces oil liquid elasticity modulus, makes to suppress energy consumption raising.And cause cavitation effect, damage Hydraulic Elements.
Further, since the ratio great disparity of air inlet valve and transmission pipeline pain diameter and 1 air space of top tank is excessive, Wu Fatong
It crosses and opens 11 tonifying Qi of compressed air control valve when top tank air space reduces to guarantee the stabilization of atmospheric pressure.Raising oils
The compressed air pressure of case gas cavity advantageously reduces the air pocket of filling process, but when compressed air pressure is excessively high, will lead to dynamic
Resistance is excessive and slowed down the rate of climb when beam idle running backhaul, reduces compacting frequency.
On the other hand, it forms a complete production network since ceramic brick press also needs cloth system, turns over the peripheral equipments such as base subsidiary engine, this leads
Cause when ceramic brick press and cloth system or turn over base subsidiary engine working frequency it is inconsistent when, to prevent equipment moving from interfering, it is necessary to
There is the synchronizing frequency that can coordinate three.The synchronizing frequency is to can satisfy the working frequency of flowing water built-in unit simultaneously.
Therefore there are synchronizing frequency compacting and asynchronous frequencies to suppress two kinds of frequency compacting modes on ceramic brick press at present.
For ceramic brick press, asynchronous frequencies refer to when suppressing to be immediately entered after equipment has executed movement according to specified parameter
Circulation production next time, asynchronous frequencies are also parameter combination institute attainable largest production frequency of the equipment for some setting
Rate.Synchronizing frequency compacting refers to that operator allows according to the production frequency of peripheral subsidiary engine for the production frequency that ceramic brick press is specified
The frequency matches with peripheral hardware subsidiary engine frequency.
When synchronous compacting frequency compacting frequency asynchronous lower than equipment, the synchronous waiting time will occur in ceramic brick press.Please
Referring to Fig.2, it handles the method for asynchronously or synchronously suppressing frequency for current ceramic brick press, mainly comprise the steps that
Step 1: equipment executes compacting according to the parameter of setting and acts, and statistics is dynamic during executing compacting movement
The total time-consuming of work.
Step 2: judge that operator sets asynchronous frequencies or synchronizing frequency.Such as it is set as asynchronous frequencies, then is directly entered down
One cycle compacting；Such as it is set as synchronizing frequency, then calculates synchronization time, it is to be synchronized waiting if being greater than zero synchronization time
Enter next compacting after time to recycle.If the synchronous waiting time is less than or equal to zero, it is directly entered next compacting circulation.
By the compacting discovery of the production principle and synchronizing frequency of above-mentioned air pocket, the generation of air pocket is derived from oil stream high velocity stream
It is dynamic, and synchronize the waiting time and idle do not have to.
Summary of the invention
The invention reside in the shortcomings that overcoming the prior art with it is insufficient, provide a kind of probability that can reduce air pocket generation and
The method that can guarantee synchronous compacting frequency stabilization operation.In addition, the present invention also provides a kind of adjusting dresses using the above method
It sets.
The present invention is realized by following technical solution: a kind of ceramic powder brick machine that adjusts moves beam movement velocity
Method, comprising the following steps:
Step 1: judging whether it is and suppress for the first time；If suppressing for the first time, then completed according to asynchronous frequencies parameter setting primary
Complete cyclic pressing, and the time-consuming and total time-consuming of each movement are counted during cyclic pressing, the time-consuming of each stage action is made
It is sample time and total time-consuming T_Total storage into storage medium, terminates this method；If it is not, thening follow the steps 2；
Step 2: judgement compacting frequency mode；Mode is suppressed if synchronizing frequency, thens follow the steps 3；If asynchronous frequencies
Compacting mode, thens follow the steps 7；
Step 3: the relatively more synchronous waiting time；If the synchronous waiting time is greater than zero, the synchronous waiting time is increased to dynamic
In beam fall time, and execute step 4；If the synchronous waiting time less than zero, is followed according to the parameter setting completion of asynchronous frequencies
Ring compacting；
Step 4: calculating the location point that accelerating sections terminates and the location point to reduce speed now；
Step 5: control brake beam descending motion；
Step 6: entering compacting link, and after the completion of compacting, adjust the rate of climb of dynamic beam, terminate this time compacting stream
Journey；
Step 7: change top tank air pressure, and cyclic pressing is carried out according to the parameter setting of asynchronous frequencies, count each stage
Time-consuming and total time-consuming；
Step 8: the air pressure in adjustment top tank terminates this time compacting process.
Compared with the prior art, the present invention can reduce ceramic brick press and generate bubble oil in the dynamic beam idle running rapid decrease stage
Probability, improve the reliability of equipment.
As a further improvement of the present invention, in step 4, comprising the following steps:
Step 41: according to the dynamic beam fall time T_Drop after change, calculating decline average speed V_Ave=S/T_
Drop；Wherein S is descending stroke；
Step 42: the average decrease speed that the target velocity V_CS set that dynamic beam is declined is 2 times, i.e. V_CS=2*V_
Ave；Fall time T_Drop is subjected to 3 equal parts, and is respectively allocated to acceleration time T1, at the uniform velocity time T2 and deceleration time T3；
Step 43: the acceleration of dynamic beam is the SIN function that an amplitude coefficient is A_Acc, i.e. A_Acc*Sin (α)；According to
The integral of dynamic beam acceleration A_Acc*Sin (α) in 0~π is target velocity V_CS, calculates the size of amplitude A_Acc；
Step 44: calculating the acceleration displaced segments Acc_Distance in the T1 time, and calculate accelerating sections end position point
Pos_AccEnd=Pos_Start+Acc_Distance, wherein Pos_Start is that beam starts the positional value of starting；
Step 45: within the T3 period, using uniform motion speed V_CS as initial velocity, drawing velocity V_Punching makees
For end speed, acceleration is successively decreased with SIN function from π to the characteristic during 2 π；Calculate deceleration range coefficient A_Dec and acquisition
Displacement Dec_Distance needed for slowing down；To calculate the location point Pos_Break that reduces speed now during setting out beam decline
=Pos_SL-Dec_Distance, wherein Pos_SL is that beam starts stamping position.
As a further improvement of the present invention, in steps of 5, comprising the following steps:
Step 51: judging whether that receiving dynamic beam decline enabling signal directly terminates this method as do not received；Such as connect
Receive then jump procedure 52；
Step 52: reading the real time position Pos_Real of dynamic beam；Judge the moving region where dynamic beam real time position；If
The real time position of dynamic beam is in acceleration section, i.e. Pos_Real < Pos_AccEnd, then jump procedure 53；If the reality of dynamic beam
When position be in braking section, i.e. when Pos_Real > Pos_Break, jump procedure 54；If the real time position of dynamic beam is in even
When fast section, i.e. when Pos_AccEnd≤Pos_Real < Pos_Break, jump procedure 55；
Step 53: the amplitude coefficient A_Acc of acceleration being assigned to assignment coefficient A, sets Sin for acceleration factor Coe
(α), and make the value interval [0, π] of α；It is equal to T1 for intermediate computations time T_Temp；Jump procedure 56；
Step 54: the amplitude coefficient A_Dec of deceleration being assigned to assignment coefficient A, sets Sin for acceleration factor Coe
(α), and make the value interval [π, 2 π] of α；It is equal to T3 for intermediate computations time T_Temp；Jump procedure 56；
Step 55: being assigned to assignment coefficient A for 0, set 0 for acceleration factor Coe, jump procedure 56；
Step 56: intermediate computations time T_Temp is divided into n unit time △ t；The unit time must be with control
The sweep time of system is identical；When △ t timing finishes, α needs to increase increment π/n, α=α+π/a n；Jump procedure 57；
Step 57: calculating acceleration a=A*Coe* △ t, the acceleration displacement increment after calculating a unit time △ t
Pos_Incre, and the theoretical position Pos_Theory_New after a unit time △ t is calculated equal to a unit time △
The sum of theoretical position Pos_Theory_Old and acceleration displacement increment Pos_Incre before t, i.e. Pos_Theory_New=Pos_
Theory_Old+Pos_Incre；Theoretical position Pos_ after comparing a current location Pos_Real and unit time △ t
The displacement difference △ s of Theory_New carries out feedback closed loop to displacement difference △ s using PID approach and exports V_Out.
As a further improvement of the present invention, in step 6, comprising the following steps:
Step 61: judging whether the real time position of dynamic beam reaches and start stamping position Pos_SL, if yes then enter step
Rapid 62, if otherwise jump procedure 5；
Step 62: carrying out compacting link using the parameter combination of setting, and count the time-consuming that compacting link respectively acts；
After completing to suppress link, before the rising of dynamic beam starts, counts driven beam starting descending motion and finish to suppressing
Total time-consuming T_NonRise, will the theoretical time T_Syn_Samp and T_NonRise of synchronous compacting frequency carry out subtracting each other acquisition can
The time T_Rise_Syn risen for moving beam；By T_Rise_Syn and the dynamic beam rise time T_ under asynchronous frequencies compacting state
Rise_Samp is compared, and calculates the time increment T_Rise_Incre=T_Rise_Syn-T_Rise_Samp for setting out beam rising,
If T_Rise_Incre is greater than 0, the dynamic beam rate of climb is reduced；
If T_Rise_Incre is less than or equal to 0, it is dynamic that dynamic beam rising is executed according to the parameter setting of asynchronous frequencies state
Make, jump procedure 63；
Step 63: after executing complete cyclic pressing, counting the temporal summation T_Syn_Actual actually executed and reason
By T_Syn_Samp synchronization time, circulation time increment T_Incre=T_Syn_Actual-T_Syn_Samp is calculated；Judge T_
The numerical value of Incre；
If T_Incre is greater than 0, after waiting, circulation time increment T_Incre is increased to the decline of next circulation
Time T_Drop terminates this method；
If circulation time increment T_Incre less than 0, is increased to the fall time T_ of next circulation by T_Incre
In Drop, terminate this method；
If T_Incre is equal to 0, directly terminate this method.
As a further improvement of the present invention, in step 8, comprising the following steps: compare on the dynamic beam after increasing air pressure
Rise time T_Rise_ASyn and the dynamic beam rise time T_Rise_Samp under asynchronous frequencies compacting state；
Reduce the air pressure of top tank if T_Rise_ASyn > T_Rise_Samp；
If T_Rise_ASyn=T_Rise_Samp, the air pressure of top tank is kept；
If T_Rise_ASyn < T_Rise_Samp, the air pressure of top tank is increased.
The present invention also provides it is a kind of applied to above-mentioned adjusting ceramic powder brick machine move beam movement velocity method device,
Including
Frequency mode discrimination module is suppressed, is used to distinguish that compacting mode to belong to synchronizing frequency compacting or asynchronous frequencies pressure
System, and model selection is carried out according to compacting mode；
Synchronizing frequency state moves beam motion theory value computing module, is used to calculate the dynamic beam idle running decline under synchronizing frequency
The time division of movement, acceleration, accelerate the acceleration and deceleration starting point of displacement end point and braking section；
Synchronizing frequency state moves beam movement velocity-position execution module, is used to move Liang Yundong according to synchronizing frequency state
The exercise data of theoretical value computing module according to position feedback error calculation and exports the instruction of the control valve in this scan period,
And predict the location point of lower scan cycle；
Asynchronous frequencies state air pressure control module is used for according to the time feedbacking for moving beam promotion speed, and change compression is empty
Gas control valve is to change the pressure of top tank gas cavity.
In order to better understand and implement, the invention will now be described in detail with reference to the accompanying drawings.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the ceramic press of the prior art.
Fig. 2 is that the method flow diagram of frequency is asynchronously or synchronously suppressed in the ceramic brick press processing of the prior art.
Fig. 3 is the method and step flow chart for adjusting ceramic powder brick machine and moving beam movement velocity of the invention.
Fig. 4 is the step flow chart that step S4 specifically includes.
Fig. 5 is the step flow chart that step S5 specifically includes.
Specific embodiment
Referring to Fig. 3, it is the method and step flow chart for adjusting ceramic powder brick machine and moving beam movement velocity of the invention.
The method for adjusting ceramic powder brick machine and moving beam movement velocity of the invention, comprising the following steps:
Step S1: judge whether it is and suppress for the first time；If suppressing for the first time, then completed according to asynchronous frequencies parameter setting primary
Complete cyclic pressing, and the time-consuming and total time-consuming of each movement are counted during cyclic pressing, the time-consuming of each stage action is made
It is sample time and total time-consuming T_Total storage into storage medium, terminates this method；If it is not, thening follow the steps S2.
The time-consuming of asynchronous compacting frequency and each action phase when this step can obtain parameter setting, can be used as
The evaluation criteria of subsequent compacting.
Step S2: judgement compacting frequency mode；Mode is suppressed if synchronizing frequency, thens follow the steps S3；If asynchronous frequency
Rate suppresses mode, thens follow the steps S7；
Step S3: relatively more synchronous waiting time；If the synchronous waiting time is greater than zero, the synchronous waiting time is increased to dynamic
In beam fall time, and execute step S4；If the synchronous waiting time less than zero, is followed according to the parameter setting completion of asynchronous frequencies
Ring compacting.
Specifically, the calculating about synchronization time, is exemplified below, for example the asynchronous compacting frequency of equipment be 10 circulations/
Min, the synchronous compacting frequency set is 8 circulations/min.Then the synchronization time of single cycle production subtracts equal to the synchronous production period
It goes the asynchronous production cycle, 60/8-60/10=1.5 seconds/circulation.I.e. equipment compares asynchronous frequencies under synchronizing frequency compacting state
Each circulation will wait 1.5 seconds under state.
Step S4: the location point that accelerating sections terminates and the location point to reduce speed now are calculated.
Specifically, referring to Fig. 4, in step s 4, comprising the following steps:
Step S41: according to the dynamic beam fall time T_Drop after change, decline average speed V_Ave=S/T_ is calculated
Drop；Wherein S is descending stroke；Wherein, moving beam total travel is S known quantity, is set by operator and is set according to production requirement.
Step S42: the average decrease speed that the target velocity V_CS set that dynamic beam is declined is 2 times, i.e. V_CS=2*V_
Ave；Fall time T_Drop is subjected to 3 equal parts, and is respectively allocated to acceleration time T1, at the uniform velocity time T2 and deceleration time T3；
Step S43: the acceleration of dynamic beam is the SIN function that an amplitude coefficient is A_Acc, i.e. A_Acc*Sin (α)；According to
The integral of dynamic beam acceleration A_Acc*Sin (α) in 0~π is target velocity V_CS, calculates the size of amplitude A_Acc；
Step S44: the acceleration displaced segments Acc_Distance in the T1 time is calculated, and calculates accelerating sections end position point
Pos_AccEnd=Pos_Start+Acc_Distance, wherein Pos_Start is that beam starts the positional value of starting；
Specifically, carrying out integrating meter twice from 0 to π to acceleration A _ Acc*Sin (α) calculates acceleration displaced segments Acc_
Distance.Calculate accelerating sections end position point Pos_AccEnd=Pos_Start+Acc_Distance.Wherein, Pos_
Start is that beam starts the positional value of starting.The purpose of this measure is to be incremented by according to SIN function from 0 to during π when acceleration
When, A_Acc*Sin (α) is integrated, to guarantee in the T1 period, dynamic beam accelerates to target from 0 with sinuso sine protractor acceleration
Speed V_CS.And it is equal to displacement principle using integration of acceleration two times, calculates and accelerate in the T1 period according to sinuso sine protractor
Theoretical displaced segments Acc_Distance, it is possible thereby to obtain the end position point Pos_AccEnd of acceleration.
Step S45: within the T3 period, using uniform motion speed V_CS as initial velocity, drawing velocity V_Punching
As end speed, acceleration is successively decreased with SIN function from π to the characteristic during 2 π；It calculates deceleration range coefficient A_Dec and obtains
Must slow down required displacement Dec_Distance；To calculate the location point Pos_ that reduces speed now during setting out beam decline
Break=Pos_SL-Dec_Distance, wherein Pos_SL is that beam starts stamping position.
Step S5: control brake beam descending motion.
Specifically, please refer to Fig. 5, in step s 5, comprising the following steps:
Step S51: judge whether that receiving dynamic beam decline enabling signal directly terminates this method as do not received；Such as
Receive then jump procedure S52；
Step S52: the real time position Pos_Real of dynamic beam is read；Judge the moving region where dynamic beam real time position；Such as
The real time position that fruit moves beam is in acceleration section, i.e. Pos_Real < Pos_AccEnd, then jump procedure S53；If dynamic beam
Real time position is in braking section, i.e. when Pos_Real > Pos_Break, jump procedure S54；If at the real time position of dynamic beam
When at the uniform velocity section, i.e. when Pos_AccEnd≤Pos_Real < Pos_Break, jump procedure S55；
Step S53: the amplitude coefficient A_Acc of acceleration is assigned to assignment coefficient A, acceleration factor Coe is set as Sin
(α), and make the value interval [0, π] of α；It is equal to T1 for intermediate computations time T_Temp；Jump procedure S56；
Step S54: the amplitude coefficient A_Dec of deceleration is assigned to assignment coefficient A, acceleration factor Coe is set as Sin
(α), and make the value interval [π, 2 π] of α；It is equal to T3 for intermediate computations time T_Temp；Jump procedure S56；
Step S55: being assigned to assignment coefficient A for 0, sets 0 for acceleration factor Coe, jump procedure S56；
Step S56: intermediate computations time T_Temp is divided into n unit time △ t；The unit time must be with control
The sweep time of system is identical；When △ t timing finishes, α needs to increase increment π/n, α=α+π/a n；Jump procedure S57；
Step S57: acceleration a=A*Coe* △ t, the acceleration displacement increment after calculating a unit time △ t are calculated
Pos_Incre, and the theoretical position Pos_Theory_New after a unit time △ t is calculated equal to a unit time △
The sum of theoretical position Pos_Theory_Old and acceleration displacement increment Pos_Incre before t, i.e. Pos_Theory_New=Pos_
Theory_Old+Pos_Incre；Theoretical position Pos_ after comparing a current location Pos_Real and unit time △ t
The displacement difference △ s of Theory_New carries out feedback closed loop to displacement difference △ s using PID approach and exports V_Out.
Step S6: entering compacting link, and after the completion of compacting, adjusts the rate of climb of dynamic beam, terminates this time compacting stream
Journey.
Specifically, in the step S6, comprising the following steps:
Step S61: judge whether the real time position of dynamic beam reaches and start stamping position Pos_SL, if yes then enter step
Rapid 62, if otherwise jump procedure S5；
Step S62: carrying out compacting link using the parameter combination of setting, and counts the time-consuming that compacting link respectively acts；
After completing to suppress link, before the rising of dynamic beam starts, counts driven beam starting descending motion and finish to suppressing
Total time-consuming T_NonRise, will the theoretical time T_Syn_Samp and T_NonRise of synchronous compacting frequency carry out subtracting each other acquisition can
The time T_Rise_Syn risen for moving beam；By T_Rise_Syn and the dynamic beam rise time T_ under asynchronous frequencies compacting state
Rise_Samp is compared, and calculates the time increment T_Rise_Incre=T_Rise_Syn-T_Rise_Samp for setting out beam rising,
If T_Rise_Incre is greater than 0, the dynamic beam rate of climb is reduced；
If T_Rise_Incre is less than or equal to 0, it is dynamic that dynamic beam rising is executed according to the parameter setting of asynchronous frequencies state
Make, jump procedure S63；
Step S63: after executing complete cyclic pressing, the temporal summation T_Syn_Actual actually executed and reason are counted
By T_Syn_Samp synchronization time, circulation time increment T_Incre=T_Syn_Actual-T_Syn_Samp is calculated；Judge T_
The numerical value of Incre；
If T_Incre is greater than 0, after waiting, circulation time increment T_Incre is increased to the decline of next circulation
Time T_Drop terminates this method；
If circulation time increment T_Incre less than 0, is increased to the fall time T_ of next circulation by T_Incre
In Drop, terminate this method；
If T_Incre is equal to 0, directly terminate this method.
Step S7: change top tank air pressure, and cyclic pressing is carried out according to the parameter setting of asynchronous frequencies, count each stage
Time-consuming and total time-consuming；
Step S8: the air pressure in adjustment top tank terminates this time compacting process.
Specifically, in the step S8, comprising the following steps: compare the dynamic beam rise time T_ after increasing air pressure
The Rise_ASyn and dynamic beam rise time T_Rise_Samp under asynchronous frequencies compacting state；
Reduce the air pressure of top tank if T_Rise_ASyn > T_Rise_Samp；
If T_Rise_ASyn=T_Rise_Samp, the air pressure of top tank is kept；
If T_Rise_ASyn < T_Rise_Samp, the air pressure of top tank is increased.
The present invention also provides it is a kind of applied to above-mentioned adjusting ceramic powder brick machine move beam movement velocity method device,
Including
Frequency mode discrimination module is suppressed, is used to distinguish that compacting mode to belong to synchronizing frequency compacting or asynchronous frequencies pressure
System, and model selection is carried out according to compacting mode；
Synchronizing frequency state moves beam motion theory value computing module, is used to calculate the dynamic beam idle running decline under synchronizing frequency
The time division of movement, acceleration, accelerate the acceleration and deceleration starting point of displacement end point and braking section；
Synchronizing frequency state moves beam movement velocity-position execution module, is used to move Liang Yundong according to synchronizing frequency state
The exercise data of theoretical value computing module according to position feedback error calculation and exports the instruction of the control valve in this scan period,
And predict the location point of lower scan cycle；
Asynchronous frequencies state air pressure control module is used for according to the time feedbacking for moving beam promotion speed, and change compression is empty
Gas control valve is to change the pressure of top tank gas cavity.
Compared with the prior art, the present invention can reduce ceramic brick press and generate bubble oil in the dynamic beam idle running rapid decrease stage
Probability, improve the reliability of equipment.
The invention is not limited to above embodiment, if not departing from the present invention to various changes or deformation of the invention
Spirit and scope, if these changes and deformation belong within the scope of claim and equivalent technologies of the invention, then this hair
It is bright to be also intended to encompass these changes and deformation.
Claims (6)
1. a kind of method for adjusting ceramic powder brick machine and moving beam movement velocity, comprising the following steps:
Step 1: judging whether it is and suppress for the first time；If suppressing for the first time, then completed according to asynchronous frequencies parameter setting primary complete
Cyclic pressing, and the time-consuming and total time-consuming of each movement are counted during cyclic pressing, using the time-consuming of each stage action as sample
This time and total time-consuming T_Total storage terminate this method into storage medium；If it is not, thening follow the steps 2；
Step 2: judgement compacting frequency mode；Mode is suppressed if synchronizing frequency, thens follow the steps 3；It is suppressed if asynchronous frequencies
Mode thens follow the steps 7；
Step 3: the relatively more synchronous waiting time；If the synchronous waiting time is greater than zero, the synchronous waiting time is increased under dynamic beam
It drops in the time, and executes step 4；If the synchronous waiting time completes circulation pressure less than zero, according to the parameter setting of asynchronous frequencies
System；
Step 4: calculating the location point that accelerating sections terminates and the location point to reduce speed now；
Step 5: control brake beam descending motion；
Step 6: entering compacting link, and after the completion of compacting, adjust the rate of climb of dynamic beam, terminate this time compacting process；
Step 7: change top tank air pressure, and cyclic pressing is carried out according to the parameter setting of asynchronous frequencies, it is time-consuming to count each stage
And total time-consuming；
Step 8: the air pressure in adjustment top tank terminates this time compacting process.
2. adjusting the method that ceramic powder brick machine moves beam movement velocity according to claim 1, it is characterised in that: in step
In 4, comprising the following steps:
Step 41: according to the dynamic beam fall time T_Drop after change, calculating decline average speed V_Ave=S/T_Drop；Its
Middle S is descending stroke；
Step 42: the average decrease speed that the target velocity V_CS set that dynamic beam is declined is 2 times, i.e. V_CS=2*V_Ave；It will
Fall time T_Drop carries out 3 equal parts, and is respectively allocated to acceleration time T1, at the uniform velocity time T2 and deceleration time T3；
Step 43: the acceleration of dynamic beam is the SIN function that an amplitude coefficient is A_Acc, i.e. A_Acc*Sin (α)；According to dynamic beam
Integral of the acceleration A _ Acc*Sin (α) in 0~π is target velocity V_CS, calculates the size of amplitude A_Acc；
Step 44: calculating the acceleration displaced segments Acc_Distance in the T1 time, and calculate accelerating sections end position point Pos_
AccEnd=Pos_Start+Acc_Distance, wherein Pos_Start is that beam starts the positional value of starting；
Step 45: within the T3 period, using uniform motion speed V_CS as initial velocity, drawing velocity V_Punching is as end
Speed, acceleration are successively decreased with SIN function from π to the characteristic during 2 π；It calculates deceleration range coefficient A_Dec and is slowed down
Required displacement Dec_Distance；To calculate the location point Pos_Break=that reduces speed now during setting out beam decline
Pos_SL-Dec_Distance, wherein Pos_SL is that beam starts stamping position.
3. adjusting the method that ceramic powder brick machine moves beam movement velocity according to claim 2, it is characterised in that: in step
In 5, comprising the following steps:
Step 51: judging whether that receiving dynamic beam decline enabling signal directly terminates this method as do not received；Such as receive
Then jump procedure 52；
Step 52: reading the real time position Pos_Real of dynamic beam；Judge the moving region where dynamic beam real time position；If dynamic beam
Real time position be in acceleration section, i.e. Pos_Real < Pos_AccEnd, then jump procedure 53；If the real-time position of dynamic beam
It sets in the braking section, i.e. when Pos_Real > Pos_Break, jump procedure 54；If the real time position of dynamic beam is at the uniform velocity section
When, i.e. when Pos_AccEnd≤Pos_Real < Pos_Break, jump procedure 55；
Step 53: the amplitude coefficient A_Acc of acceleration is assigned to assignment coefficient A, acceleration factor Coe is set as Sin (α), and
Make the value interval [0, π] of α；It is equal to T1 for intermediate computations time T_Temp；Jump procedure 56；
Step 54: the amplitude coefficient A_Dec of deceleration is assigned to assignment coefficient A, acceleration factor Coe is set as Sin (α), and
Make the value interval [π, 2 π] of α；It is equal to T3 for intermediate computations time T_Temp；Jump procedure 56；
Step 55: being assigned to assignment coefficient A for 0, set 0 for acceleration factor Coe, jump procedure 56；
Step 56: intermediate computations time T_Temp is divided into n unit time △ t；The unit time palpus and control system
Sweep time it is identical；When △ t timing finishes, α needs to increase increment π/n, α=α+π/a n；Jump procedure 57；
Step 57: calculating acceleration a=A*Coe* △ t, the acceleration displacement increment Pos_ after calculating a unit time △ t
Incre, and the theoretical position Pos_Theory_New after a unit time △ t is calculated equal to before unit time △ t
Theoretical position Pos_Theory_Old and accelerate the sum of displacement increment Pos_Incre, i.e. Pos_Theory_New=Pos_
Theory_Old+Pos_Incre；Theoretical position Pos_ after comparing a current location Pos_Real and unit time △ t
The displacement difference △ s of Theory_New carries out feedback closed loop to displacement difference △ s using PID approach and exports V_Out.
4. adjusting the method that ceramic powder brick machine moves beam movement velocity according to claim 3, it is characterised in that: in step
In 6, comprising the following steps:
Step 61: judge whether the real time position of dynamic beam reaches and starts stamping position Pos_SL, if yes then enter step 62,
If otherwise jump procedure 5；
Step 62: carrying out compacting link using the parameter combination of setting, and count the time-consuming that compacting link respectively acts；
After completing to suppress link, before the rising of dynamic beam starts, count driven beam starting descending motion to suppress finish it is total
The theoretical time T_Syn_Samp and T_NonRise of synchronous compacting frequency subtract each other acquisition for dynamic by time-consuming T_NonRise
The time T_Rise_Syn that beam rises；By T_Rise_Syn and the dynamic beam rise time T_ under asynchronous frequencies compacting state
Rise_Samp is compared, and calculates the time increment T_Rise_Incre=T_Rise_Syn-T_Rise_Samp for setting out beam rising,
If T_Rise_Incre is greater than 0, the dynamic beam rate of climb is reduced；
If T_Rise_Incre is less than or equal to 0, dynamic beam vertical motion is executed according to the parameter setting of asynchronous frequencies state, is jumped
Go to step 63；
Step 63: after executing complete cyclic pressing, counting the temporal summation T_Syn_Actual actually executed and theory is same
Time T_Syn_Samp is walked, circulation time increment T_Incre=T_Syn_Actual-T_Syn_Samp is calculated；Judge T_Incre
Numerical value；
If T_Incre is greater than 0, after waiting, circulation time increment T_Incre is increased to the fall time of next circulation
T_Drop terminates this method；
If less than 0, circulation time increment T_Incre is increased in the fall time T_Drop of next circulation by T_Incre,
Terminate this method；
If T_Incre is equal to 0, directly terminate this method.
5. adjusting the method that ceramic powder brick machine moves beam movement velocity according to claim 4, it is characterised in that: in step
In 8, comprising the following steps: compare dynamic beam rise time T_Rise_ASyn after increasing air pressure and suppress state in asynchronous frequencies
Under dynamic beam rise time T_Rise_Samp；
Reduce the air pressure of top tank if T_Rise_ASyn > T_Rise_Samp；
If T_Rise_ASyn=T_Rise_Samp, the air pressure of top tank is kept；
If T_Rise_ASyn < T_Rise_Samp, the air pressure of top tank is increased.
6. a kind of dress for moving beam movement velocity method applied to adjusting ceramic powder brick machine described in claim 1-5 any one
It sets, it is characterised in that: including
Frequency mode discrimination module is suppressed, is used to distinguish that compacting mode to belong to synchronizing frequency compacting or asynchronous frequencies compacting,
And model selection is carried out according to compacting mode；
Synchronizing frequency state moves beam motion theory value computing module, is used to calculate the dynamic beam idle running descending motion under synchronizing frequency
Time divide, acceleration, accelerate displacement end point and braking section acceleration and deceleration starting point；
Synchronizing frequency state moves beam movement velocity-position execution module, is used to move beam motion theory according to synchronizing frequency state
It is worth the exercise data of computing module, according to position feedback error calculation and exports the instruction of the control valve in this scan period, and pre-
Survey the location point of lower scan cycle；
Asynchronous frequencies state air pressure control module is used to change compressed air control according to the time feedbacking for moving beam promotion speed
Valve processed is to change the pressure of top tank gas cavity.
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| JPH04155208A (en) * | 1990-10-18 | 1992-05-28 | Kubota Corp | Discrimination on acceptability of platelike work |
| JPH0947825A (en) * | 1995-08-01 | 1997-02-18 | Sky Alum Co Ltd | Superplastic forming device |
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