CN112169606A - Blanking weight control algorithm of weighing type mixer - Google Patents
Blanking weight control algorithm of weighing type mixer Download PDFInfo
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- CN112169606A CN112169606A CN202010913279.8A CN202010913279A CN112169606A CN 112169606 A CN112169606 A CN 112169606A CN 202010913279 A CN202010913279 A CN 202010913279A CN 112169606 A CN112169606 A CN 112169606A
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- parameters
- blanking
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/20—Measuring; Control or regulation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/71—Feed mechanisms
- B01F35/714—Feed mechanisms for feeding predetermined amounts
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- Chemical Kinetics & Catalysis (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The invention discloses a blanking weight control algorithm of a weighing type mixer, which comprises the following steps: calling equipment parameters and user parameters from a memory and judging the task amount; if the task amount is smaller than the set value A, subtracting a fixed value from the task amount; if the task amount is larger than or equal to the set value A, reducing the task amount according to the proportion B; opening a feed opening for feeding; judging whether the flashboard running time and the blanking weight exceed task values or not; if the weight does not reach the set task amount, blanking is carried out; if the weight reaches the set task amount, calculating new gate parameters; judging whether the parameters are locked; if the parameter locking is not carried out, storing the parameter; if the parameters are locked, the parameters are stored after the parameters are finely adjusted by the feed opening; the method adopts a mathematical model mode to calculate the flashboard running time of the weighing mixer in advance, and MCU and CPU in the running process calculate to obtain parameters of a flashboard discharging opening and automatically correct the parameters, so that the effect of accurate and rapid weighing is realized.
Description
Technical Field
The invention relates to a weight control algorithm, in particular to a blanking weight control algorithm of a weighing mixer.
Background
The uncontrollable factors of free blanking are too many, such as environment temperature and humidity, raw material shape, raw material surface viscosity, raw material proportion, delay time change of an air cylinder valve of a blanking port of equipment and the like all influence the accuracy of blanking, and the larger the blanking amount is, the larger the error is.
The flashboard control of the existing weighing type material mixer adopts time-sharing control and a gradual intermittent discharging mode to approach the set weight, and the method easily causes the problems of low material mixing precision and long running period.
Therefore, a blanking weight control algorithm of the weighing type material mixer for improving blanking precision and blanking speed is a problem to be solved urgently.
Disclosure of Invention
The invention aims to solve the technical problems of low batching precision, long running period and the like in the prior art.
In order to solve the technical problems, the technical scheme provided by the invention is as follows: a blanking weight control algorithm of a weighing mixer comprises the following steps: starting the equipment: calling equipment parameters and user parameters from a memory and judging the task amount;
step 2: if the task amount is smaller than the set value A, subtracting a fixed value from the task amount; if the task amount is larger than or equal to the set value A, reducing the task amount according to the proportion B;
and step 3: opening a feed opening for feeding;
and 4, step 4: judging whether the flashboard running time and the blanking weight exceed task values or not;
and 5: if the weight does not reach the set task amount, blanking is carried out; if the weight reaches the set task amount, calculating new gate parameters;
step 6: judging whether the parameters are locked;
and 7: if the parameters are not locked, storing the parameters, wherein the stored parameter values are original values plus the parameters/C of the feed opening; and if the parameters are locked, after the parameters are finely adjusted by the feed opening, storing the parameters, wherein the stored parameter values are the original numerical values and the feed opening parameters/D.
Further, the equipment parameters comprise equipment gate plate blanking coefficients and cylinder operation lag time, and the user parameters comprise user blanking amount. Further, the flashboard running time comprises two calculation modes, wherein one calculation mode is a calculation mode under a general module, and the other calculation mode is a calculation mode under an accurate mode;
the general module gate operating time is equal to the gate blanking coefficient/task amount + cylinder operating lag time;
and the accurate mode gate plate running time is equal to the gate plate blanking coefficient/(task amount-task distribution point parameter) + the cylinder running delay time.
And further, calculating the new gate parameters according to the running time of the gate, locking the counting and accumulating when the blanking weight error value is within an allowable range, and entering a parameter locking state when the counting and accumulating are decreased and the accumulated correct times are more than a set value E.
Further, the parameter locking means that the ratio of the blanking weight to the task amount set by the user is within a certain range, a special locking register accumulates, the accumulated number reaches a set value F, whether the currently running parameter is in the locking gate coefficient is judged, if the difference value between the obtained coefficient and the old coefficient is greater than a set value G, the locking register is decreased by 1, and if the locking register is smaller than the set value G, the locking register is unlocked and the gate coefficient is automatically modified.
Further, the A, B, C, D, E, F, G can be set according to actual conditions.
Compared with the prior art, the invention has the advantages that: calculating the action time of the flashboard according to the task blanking amount and the blanking amount coefficient of the blanking port in unit time; in order to eliminate the uncertainty factor of the free falling of the raw materials, the flashboard is stopped in advance; reading the real-time weight after stopping in advance, comparing the real-time weight with the task, determining whether to carry out secondary blanking and calculating blanking time; after the blanking is finished, recalculating the blanking amount coefficient of the blanking port in unit time, adding the correction value to store data, and using the data for the next task; the method adopts a mathematical model mode to calculate the flashboard running time of the weighing mixer in advance, and MCU and CPU calculate in the running process to obtain parameters of a flashboard discharging opening and automatically correct the parameters, so that the effect of accurate and rapid weighing is realized; the invention improves the batching weight precision of the weighing mixer and improves the blanking speed; the invention has reasonable design and is worth popularizing.
Drawings
Fig. 1 is a program flow diagram.
Detailed Description
The present invention will be described in detail with reference to fig. 1.
The invention provides a blanking weight control algorithm of a weighing type mixer in specific implementation, which comprises the following steps of 1: starting the equipment: calling equipment parameters and user parameters from a memory and judging the task amount;
step 2: if the task amount is smaller than the set value A, subtracting a fixed value from the task amount; if the task amount is larger than or equal to the set value A, reducing the task amount according to the proportion B;
and step 3: opening a feed opening for feeding;
and 4, step 4: judging whether the flashboard running time and the blanking weight exceed task values or not;
and 5: if the weight does not reach the set task amount, blanking is carried out; if the weight reaches the set task amount, calculating new gate parameters;
step 6: judging whether the parameters are locked;
and 7: if the parameters are not locked, storing the parameters, wherein the stored parameter values are original values plus the parameters/C of the feed opening; and if the parameters are locked, after the parameters are finely adjusted by the feed opening, storing the parameters, wherein the stored parameter values are the original numerical values and the feed opening parameters/D.
The equipment parameters comprise equipment flashboard blanking coefficients and cylinder operation lag time, and the user parameters comprise user blanking amount.
The flashboard running time comprises two calculation modes, wherein one calculation mode is a calculation mode under a general module, and the other calculation mode is a calculation mode under an accurate mode;
the general module gate operating time is equal to the gate blanking coefficient/task amount + cylinder operating lag time;
and the accurate mode gate plate running time is equal to the gate plate blanking coefficient/(task amount-task distribution point parameter) + the cylinder running delay time.
And calculating the new gate parameters according to the running time of the gate, locking and counting and accumulating the blanking weight error value within an allowable range, otherwise, decreasing the value, and entering a parameter locking state if the accumulated correct times are more than a set value E.
The parameter locking means that the ratio of the blanking weight to the task amount set by a user is in a certain range, a special locking register accumulates, the accumulated number reaches a set value F, whether the current running parameter is in a locked gate coefficient is judged, if the difference value between the obtained coefficient and the old coefficient is greater than a set value G, the locking register is decreased by 1, and if the locking register is judged to be smaller than the set value G, the gate coefficient is automatically modified by unlocking.
The A, B, C, D, E, F, G can be set according to actual conditions.
Calculating the action time of the flashboard according to the task blanking amount and the blanking amount coefficient of the blanking port in unit time; in order to eliminate the uncertainty factor of the free falling of the raw materials, the flashboard is stopped in advance; reading the real-time weight after stopping in advance, comparing the real-time weight with the task, determining whether to carry out secondary blanking and calculating blanking time; after the blanking is finished, recalculating the blanking amount coefficient of the blanking port in unit time, adding the correction value to store data, and using the data for the next task; the method adopts a mathematical model mode to calculate the flashboard running time of the weighing mixer in advance, and MCU and CPU calculate in the running process to obtain parameters of a flashboard discharging opening and automatically correct the parameters, so that the effect of accurate and rapid weighing is realized; the invention improves the batching weight precision of the weighing mixer and improves the blanking speed; the invention has reasonable design and is worth popularizing.
The present invention and its embodiments have been described above, but the description is not limitative, and the actual structure is not limited thereto. In summary, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (6)
1. The utility model provides a formula of weighing blendor unloading weight control algorithm which characterized in that:
step 1: starting the equipment: calling equipment parameters and user parameters from a memory and judging the task amount;
step 2: if the task amount is smaller than the set value A, subtracting a fixed value from the task amount; if the task amount is larger than or equal to the set value A, reducing the task amount according to the proportion B;
and step 3: opening a feed opening for feeding;
and 4, step 4: judging whether the flashboard running time and the blanking weight exceed task values or not;
and 5: if the weight does not reach the set task amount, blanking is carried out; if the weight reaches the set task amount, calculating new gate parameters;
step 6: judging whether the parameters are locked;
and 7: if the parameters are not locked, storing the parameters, wherein the stored parameter values are original values plus the parameters/C of the feed opening; and if the parameters are locked, after the parameters are finely adjusted by the feed opening, storing the parameters, wherein the stored parameter values are the original numerical values and the feed opening parameters/D.
2. The blanking weight control algorithm of the weighing mixer as claimed in claim 1, wherein: the equipment parameters comprise equipment flashboard blanking coefficients and cylinder operation lag time, and the user parameters comprise user blanking amount.
3. The blanking weight control algorithm of the weighing mixer as claimed in claim 1, wherein: the flashboard running time comprises two calculation modes, wherein one calculation mode is a calculation mode under a general module, and the other calculation mode is a calculation mode under an accurate mode;
the general module gate operating time is equal to the gate blanking coefficient/task amount + cylinder operating lag time;
and the accurate mode gate plate running time is equal to the gate plate blanking coefficient/(task amount-task distribution point parameter) + the cylinder running delay time.
4. The blanking weight control algorithm of the weighing mixer as claimed in claim 1, wherein: and calculating the new gate parameters according to the running time of the gate, locking and counting and accumulating the blanking weight error value within an allowable range, otherwise, decreasing the value, and entering a parameter locking state if the accumulated correct times are more than a set value E.
5. The blanking weight control algorithm of the weighing mixer as claimed in claim 1, wherein: the parameter locking means that the ratio of the blanking weight to the task amount set by a user is in a certain range, a special locking register accumulates, the accumulated number reaches a set value F, whether the current running parameter is in a locked gate coefficient is judged, if the difference value between the obtained coefficient and the old coefficient is greater than a set value G, the locking register is decreased by 1, and if the locking register is judged to be smaller than the set value G, the gate coefficient is automatically modified by unlocking.
6. The blanking weight control algorithm of the weighing mixer as claimed in claims 1, 4 and 5, wherein: the A, B, C, D, E, F, G can be set according to actual conditions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010913279.8A CN112169606A (en) | 2020-09-03 | 2020-09-03 | Blanking weight control algorithm of weighing type mixer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010913279.8A CN112169606A (en) | 2020-09-03 | 2020-09-03 | Blanking weight control algorithm of weighing type mixer |
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| CN112169606A true CN112169606A (en) | 2021-01-05 |
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| CN202010913279.8A Pending CN112169606A (en) | 2020-09-03 | 2020-09-03 | Blanking weight control algorithm of weighing type mixer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114634033A (en) * | 2022-02-26 | 2022-06-17 | 共享智能装备有限公司 | Accurate feeding control method, butterfly valve mechanism and control method thereof |
-
2020
- 2020-09-03 CN CN202010913279.8A patent/CN112169606A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114634033A (en) * | 2022-02-26 | 2022-06-17 | 共享智能装备有限公司 | Accurate feeding control method, butterfly valve mechanism and control method thereof |
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Application publication date: 20210105 |
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