CN103273051B - Automatic pouring control method, controller and control system - Google Patents
Automatic pouring control method, controller and control system Download PDFInfo
- Publication number
- CN103273051B CN103273051B CN201310180083.2A CN201310180083A CN103273051B CN 103273051 B CN103273051 B CN 103273051B CN 201310180083 A CN201310180083 A CN 201310180083A CN 103273051 B CN103273051 B CN 103273051B
- Authority
- CN
- China
- Prior art keywords
- pouring
- molten metal
- tundish
- value
- amount
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 58
- 239000002184 metal Substances 0.000 claims abstract description 294
- 238000004321 preservation Methods 0.000 claims abstract description 102
- 238000005266 casting Methods 0.000 claims abstract description 85
- 238000004519 manufacturing process Methods 0.000 claims description 15
- 238000005259 measurement Methods 0.000 claims description 14
- 238000000465 moulding Methods 0.000 claims description 8
- 230000009471 action Effects 0.000 claims description 5
- 238000005516 engineering process Methods 0.000 abstract description 13
- 230000008569 process Effects 0.000 description 21
- 230000035945 sensitivity Effects 0.000 description 6
- 239000013585 weight reducing agent Substances 0.000 description 5
- 238000003860 storage Methods 0.000 description 3
- 238000005303 weighing Methods 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000009347 mechanical transmission Effects 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000010924 continuous production Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 230000004584 weight gain Effects 0.000 description 1
- 235000019786 weight gain Nutrition 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
Landscapes
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Abstract
The invention discloses an automatic pouring control method, a controller and a control system. The control method comprises the steps of obtaining the total weight of a small-capacity tundish and molten metal poured into the tundish when a heat-preservation pouring furnace is in an inclination-rotation state, calculating a difference value between the total weight and a pre-measured weight of the tundish, generating a control signal used for controlling the heat-preservation pouring furnace to stop continuing to inclining-rotate when the difference value reaches a preset rated advance value of molten metal pouring amount, and generating a control signal used for controlling the tundish to inclining-rotate when the difference value reaches a rated value of molten metal pouring amount. Compared with a heat-preservation pouring furnace, the weight of the tundish and the weight of a small casting are more close, the maximum permission error of the rated advance value can reach and exceed the sensitive quantity of a measuring instrument, if molten metal stored in the tundish reaches the rated value can be accurately measured, and therefore the effect of producing small castings through an automatic pouring control technology is achieved.
Description
Technical Field
The invention relates to the technical field of automatic control, in particular to an automatic pouring control method, a controller and a control system.
Background
On an automatic pouring production line for realizing a pouring process through a large-capacity heat-preservation pouring furnace storing molten metal in a tilting manner, a rated value of a pouring amount of the molten metal required to be provided by the heat-preservation pouring furnace for a casting (the rated value is the rated value of the casting) needs to be set according to different specifications of the casting, in the pouring process, a metering device (such as an electronic scale) is generally placed under the heat-preservation pouring furnace, and whether the pouring amount of the molten metal reaches the rated value or not is measured by detecting the difference between the current weight value and the pre-pouring weight value of the heat-preservation pouring furnace storing the molten metal in real time.
However, for some small castings, the rated value is small, and the maximum allowable error acceptable by the rated value is small, namely the accuracy requirement for the measured weight reduction of the holding pouring furnace is high. The weight of the heat-preservation pouring furnace is far greater than the rated value, that is, the rated value accounts for a smaller proportion of the weight of the heat-preservation pouring furnace storing the molten metal, and for a measuring instrument, the larger the measuring range is, the larger the sensing quantity is, which often results in that the measured maximum allowable error of the weight loss of the molten metal in the heat-preservation pouring furnace is smaller than the sensing quantity of the measuring instrument (that is, the minimum division value of the measuring instrument), that is, the measuring instrument cannot meet the measurement precision of an automatic pouring control technology, and cannot measure whether the pouring quantity of the molten metal reaches the rated value, so that the weight deviation of the produced casting finished product is too large, and the small casting cannot be produced by adopting the automatic pouring control technology.
Disclosure of Invention
In view of the above, the invention provides an automatic pouring control method, a controller and a control system, so as to accurately measure whether the pouring amount of molten metal provided by the heat-preserving pouring furnace reaches a rated value, thereby achieving the purpose of producing small castings by adopting an automatic pouring control technology.
An automatic pouring control method comprising:
the method comprises the following steps of obtaining the total weight of a tundish and molten metal poured into the tundish under the state that a heat-preservation pouring furnace is tilted, wherein the tundish is a small-capacity pouring ladle which is connected between a mould used for processing and molding castings on an automatic pouring production line and the heat-preservation pouring furnace and is used for temporarily storing the molten metal flowing out of the heat-preservation pouring furnace;
calculating and obtaining a difference value between the total weight and the self weight of the tundish obtained by pre-measurement;
judging whether the difference value reaches a rated advanced value of the preset molten metal pouring amount or not;
when the difference value reaches a rated advance value of the molten metal pouring amount, generating a control signal for controlling the heat-preservation pouring furnace to stop continuously tilting;
judging whether the difference value reaches a rated value of the molten metal pouring amount;
and when the difference value reaches a rated value of the molten metal pouring amount, generating a control signal for controlling the tilting of the tundish.
Optionally, after the calculating and obtaining the difference between the total weight and the self weight of the tundish obtained by pre-measurement, the method further includes:
calculating the pouring speed of the molten metal;
comparing the pouring speed with a preset first pouring speed of the molten metal;
and when the pouring speed is not equal to the first pouring speed, adjusting the tilting angle of the heat-preservation pouring furnace until the pouring speed reaches the first pouring speed.
Optionally, before the determining whether the difference reaches a preset rated advance value of the molten metal pouring amount, the method further includes:
judging whether the pouring amount of the molten metal reaches a preset critical value of the pouring amount of the molten metal, wherein the critical value is smaller than a rated advance value of the pouring amount of the molten metal;
when the pouring amount of the molten metal reaches the critical value of the pouring amount of the molten metal, comparing the current pouring speed of the molten metal with a preset second pouring speed of the molten metal;
and when the pouring speed is not equal to the second pouring speed, adjusting the tilting angle of the heat-preservation pouring furnace until the pouring speed reaches the second pouring speed.
Optionally, before obtaining the total weight of the tundish and the molten metal poured into the tundish, the method further comprises:
acquiring a tilting angle of the heat-preservation pouring furnace in the current state;
determining a tilting angle interval in which the tilting angle is positioned so as to determine preset critical values of the molten metal pouring quantity, a rated advance value of the molten metal pouring quantity, and corresponding values of the first pouring speed and the second pouring speed;
the tilting angle interval is a plurality of tilting angle ranges which divide the maximum tilting angle range of the heat-preserving pouring furnace into, and each tilting angle interval is correspondingly provided with a group of critical values of the pouring quantity of the molten metal, a rated advance value of the pouring quantity of the molten metal, and corresponding values of a first pouring speed and a second pouring speed; wherein the second pouring rate is less than the first pouring rate, the threshold value of the molten metal pouring amount is less than a nominal advance value of the molten metal pouring amount, and the nominal advance value of the molten metal pouring amount is slightly lower than a nominal value of the casting.
An automatic pouring controller for obtaining a total weight of a tundish and a molten metal poured into the tundish in a state where a heat-insulating pouring furnace is tilted, the tundish being a small-capacity ladle connected between a mold and the heat-insulating pouring furnace for temporarily storing the molten metal flowing out of the heat-insulating pouring furnace; calculating and obtaining a difference value between the total weight and the self weight of the tundish obtained by pre-measurement; judging whether the difference value reaches a rated advanced value of the preset molten metal pouring amount or not; when the difference value reaches a rated advance value of the molten metal pouring amount, generating a control signal for controlling the heat-preservation pouring furnace to stop continuously tilting; judging whether the difference value reaches a rated value of the molten metal pouring amount; and a controller for generating a control signal for controlling tilting of the tundish when the difference reaches a rated value of the molten metal pouring amount.
Wherein,
the automatic pouring controller is used for calculating the pouring speed of the molten metal after calculating and obtaining the difference value between the total weight and the self weight of the tundish obtained by measurement in advance; comparing the pouring speed with a preset first pouring speed of the molten metal; and when the pouring speed is not equal to the first pouring speed, adjusting the tilting angle of the heat-preservation pouring furnace until the pouring speed reaches the first pouring speed.
Wherein,
the automatic pouring controller is used for judging whether the pouring amount of the molten metal reaches a preset critical value of the pouring amount of the molten metal before judging whether the difference value reaches the preset rated advance value of the pouring amount of the molten metal, and the critical value is smaller than the rated advance value of the pouring amount of the molten metal; when the pouring amount of the molten metal reaches the critical value of the pouring amount of the molten metal, comparing the current pouring speed of the molten metal with a preset second pouring speed of the molten metal; and when the pouring speed is not equal to the second pouring speed, adjusting the tilting angle of the heat-preservation pouring furnace until the pouring speed reaches the second pouring speed.
Wherein,
the automatic pouring controller is used for acquiring the tilting angle of the heat-preservation pouring furnace in the current state before acquiring the total weight of the tundish and the molten metal poured into the tundish; a controller for determining a tilting angle section in which the tilting angle is located, so as to determine preset critical values of the molten metal pouring amount, a rated advance value of the molten metal pouring amount, and corresponding values of the first pouring speed and the second pouring speed;
the tilting angle interval is a plurality of tilting angle ranges which divide the maximum tilting angle range of the heat-preserving pouring furnace into, and each tilting angle interval is correspondingly provided with a group of critical values of the pouring quantity of the molten metal, a rated advance value of the pouring quantity of the molten metal, and corresponding values of a first pouring speed and a second pouring speed; wherein the second pouring rate is less than the first pouring rate, the threshold value of the amount of molten metal poured is less than the nominal advance value of the amount of molten metal poured, and the nominal value of the amount of molten metal poured is slightly lower than the nominal value of the casting.
An automatic pouring control system comprising:
a heat-insulating pouring furnace, a braking device, a mold for processing and molding a casting, a tundish, a metering device for detecting the total weight of the tundish and molten metal poured into the tundish and an automatic pouring controller according to any one of claims 5 to 7;
the automatic pouring controller is respectively electrically connected with the metering devices and is used for acquiring the total weight of the tundish detected by the metering device and the molten metal poured into the tundish;
the braking device is respectively connected with the heat-preservation pouring furnace and the tundish; the automatic pouring controller is electrically connected with the braking device and used for controlling the tilting and stopping actions of the heat-preservation pouring furnace or the tundish through the braking device.
Preferably, the method further comprises the following steps: the angle sensor is used for detecting the tilting angle of the heat-preservation pouring furnace; the automatic pouring controller is used for acquiring the tilting angle of the heat-preservation pouring furnace in the current state before acquiring the total weight of a tundish used for processing and molding castings on an automatic pouring production line and molten metal poured into the tundish; a controller for determining a tilting angle section in which the tilting angle is located, so as to determine preset critical values of the molten metal pouring amount, a rated advance value of the molten metal pouring amount, and corresponding values of the first pouring speed and the second pouring speed; the tilting angle interval is a plurality of tilting angle ranges which divide the maximum tilting angle range of the heat-preserving pouring furnace into, and each tilting angle interval is correspondingly provided with a group of critical values of the pouring quantity of the molten metal, a rated advance value of the pouring quantity of the molten metal, and corresponding values of a first pouring speed and a second pouring speed;
the automatic pouring controller is electrically connected with the angle sensor and used for acquiring the tilting angle of the heat-preservation pouring furnace before each casting is poured through the angle sensor.
According to the technical scheme, the pouring amount of the molten metal is obtained by obtaining the total weight of the tundish with small capacity and the molten metal poured into the tundish in the tilting state of the heat-preservation pouring furnace and calculating the difference between the total weight and the pre-measured self weight of the tundish; and when the pouring amount of the molten metal reaches a preset rated advance value of the pouring amount of the molten metal, generating a control signal for controlling the heat-preservation pouring furnace to stop continuously tilting, and when the pouring amount of the molten metal reaches the rated value of the pouring amount of the molten metal through calculation, generating a control signal for controlling the tundish to continuously tilt from a standing state, so that the automatic pouring production of small castings is realized. Compared with the prior art, the weight difference of the heat-preservation pouring furnace before pouring and after pouring is obtained and stored to measure whether the pouring amount of the molten metal reaches a rated value, but the maximum allowable error of the rated value of the small casting is smaller than the sensitivity of a measuring instrument for some small castings, so that the small casting cannot be automatically poured and formed; the embodiment of the invention measures the pouring amount of the molten metal by acquiring the weight difference between the tundish storing the molten metal before pouring and the tundish after pouring, compared with the heat-preservation pouring furnace, the weight of the tundish and the small casting is closer, a measuring device with smaller range and higher precision can be adopted in the measuring process instead of the original measuring device, the maximum allowable error of the variable amount of the tundish storing the molten metal can reach and exceed the sensing amount of the measuring device for measuring the pouring amount of the molten metal, and accurate data of the pouring amount of the molten metal is provided for the automatic pouring control process, so that whether the pouring amount of the molten metal reaches a rated value is determined, and the problem that the small casting cannot be produced by adopting an automatic pouring method in the prior art is solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1a is a flowchart of an automatic pouring control method according to an embodiment of the present invention;
FIG. 1b is a flowchart of another automatic pouring control method disclosed in the second embodiment of the present invention;
FIG. 1c is a flow chart of another automatic pouring control method disclosed in the third embodiment of the present invention;
FIG. 1d is a flowchart of another automatic pouring control method according to the fourth embodiment of the present invention;
FIG. 2 is a schematic view showing a corresponding relationship between a pouring amount of molten metal and a tilting angle of the heat-insulating pouring furnace according to a second embodiment of the present invention;
fig. 3a is a schematic structural diagram of an automatic pouring control system according to a seventh embodiment of the present invention;
fig. 3b is a schematic structural diagram of another automatic pouring control system according to an eighth disclosure of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In an automatic casting production line at least comprising a heat-preservation casting furnace, a mold and a measuring instrument, if the capacity of the heat-preservation casting furnace for storing molten metal is small, the automatic casting production line needs to be stopped for many times to supplement the molten metal in the casting production process. In order to improve the production efficiency of castings, a large-capacity heat-preservation pouring furnace can be used instead to stop the casting furnace for a few times, but the problem is that the weight of the heat-preservation pouring furnace storing a large amount of molten metal is large, and particularly, in the process of producing small castings, if the pouring amount of the molten metal is determined by directly measuring the weight reduction amount of the heat-preservation pouring furnace storing the molten metal, the problem that the maximum allowable error of the weight reduction amount is lower than the sensing amount of a metering device often occurs, so that the small castings cannot be produced by adopting an automatic pouring control method. For example, for a holding and pouring furnace with a capacity of 1 ton, the holding and pouring furnace storing the molten metal is measured to be approximately 3 tons in weight (substantially measured as the total weight of the supporting equipment including the molten metal stored therein with a weight of approximately 1 ton, the lining with a weight of approximately 1 ton, and the holding and pouring furnace with a weight of approximately 1 ton), the small casting which is planned to be produced is only 10 kilograms, the allowable error is-0.2 to +0.2 kilograms, the maximum allowable error is 0.2 kg, the weight of the heat-preservation pouring furnace is far greater than that of the small casting, so that the maximum allowable error of the weight reduction amount of the heat-preservation pouring furnace obtained by weighing by the measuring instrument is smaller than the sensing amount of the measuring instrument (the sensing amount is larger when the measuring range of the measuring instrument is larger), whether the pouring amount of the molten metal reaches a rated value cannot be accurately measured, and the small casting cannot be produced by adopting the existing automatic pouring control technology.
Therefore, the embodiment of the invention discloses an automatic pouring control method, which is used for accurately measuring whether the pouring quantity of molten metal reaches a rated value or not, so as to achieve the purpose of producing small castings by adopting an automatic pouring control technology, and the method comprises the following steps of:
step 101: and under the state that the heat-preservation pouring furnace is tilted, acquiring the total weight of the tundish and the molten metal poured into the tundish. The tundish is connected between a mould used for processing and molding castings on an automatic pouring production line and a pouring gate of the heat-preservation pouring furnace, and is used for temporarily storing a small-capacity pouring ladle of molten metal flowing out of the heat-preservation pouring furnace, and the tundish is in a standing state in the initial condition (generally, the tilting angle of the tundish in the standing state is 0 degree).
The set standard of the capacity of the tundish is as follows: the total weight of storable molten metal is not less than a rated value of the amount of molten metal poured. The weight of the tundish is closer to that of the small casting than the heat-preserving pouring furnace (i.e. the rated value of the molten metal pouring amount is larger than that of the tundish storing the molten metal than that of the heat-preserving pouring furnace storing the molten metal), and the maximum allowable error of the weight increase can reach and exceed the sensing amount of the measuring device when the weight increase of the tundish part is determined by measuring the weight increase with a measuring device with smaller range and higher precision.
The tilting type pouring is a pouring mode of the heat-preservation pouring furnace, when the heat-preservation pouring furnace is in a continuous tilting state, the pouring furnace can inject molten metal into the tundish, and when the heat-preservation pouring furnace stops continuing to tilt, the injection process stops. Similarly, when the tundish is in a continuous tilting state, molten metal can be injected into the mould, and when the heat-preservation pouring furnace stops continuously tilting, the injection process is stopped. It should be noted that, no matter the heat preservation pouring furnace or the tundish, a maximum tilting angle (generally 90 °) exists in the tundish, and when the heat preservation pouring furnace or the tundish reaches the maximum tilting angle corresponding to the tundish, tilting is not continued (i.e., the continuous tilting state is automatically finished), and at this time, the heat preservation pouring furnace and the molten metal stored in the tundish all flow out, and the pouring process is automatically stopped.
Step 102: and calculating and obtaining the difference value between the total weight and the self weight of the tundish obtained by pre-measurement.
The larger the range of the measuring instrument is, the larger the inductance (i.e. the lower the precision), the larger the range of the measuring device for weighing the heat-preserving pouring furnace is than the range of the measuring device for weighing the tundish, the larger the inductance of the former is than the inductance of the latter, and compared with directly obtaining the weight reduction of the heat-preserving pouring furnace part, the weight increase of the tundish part obtained by adopting the measuring instrument with smaller range and higher precision can more easily reach the measuring precision of the measuring instrument.
Step 103: judging whether the difference value reaches a rated advanced value of the preset molten metal pouring amount or not; the nominal lead value is slightly below the nominal value of the casting.
Considering that a certain distance exists between the molten metal flowing from the heat-preserving pouring furnace to a tundish for processing and molding a casting, and a certain time is required for the residual molten metal in the flow pipeline to completely flow to the tundish after the tilting action of the heat-preserving pouring furnace is finished, the setting of the rated advance value is usually slightly lower than the rated value of the casting, when the calculated weight of the molten metal poured into the tundish reaches the rated advance value, the heat-preserving pouring furnace is controlled to finish the tilting action and stop the continuous supply of the molten metal, and when the residual molten metal in the flow pipeline completely flows out (in the actual pouring process, a part of trace amount of molten metal may still be adhered to the inner wall of the flow pipeline, but relative to the residual part flowing out from the flow pipeline, this portion of the molten metal is of negligible weight) that the rating of the casting is achieved. That is, the sum of the nominal advance value and the weight of the molten metal remaining in the flow line is the nominal value of the casting, and the maximum allowable error of the nominal advance value can reach and exceed the sensitivity of the measuring instrument, wherein the specific setting of the nominal advance value can be determined according to actual conditions.
Step 104: and when the difference value reaches a rated advance value of the pouring amount of the molten metal, generating a control signal for controlling the heat-preservation pouring furnace to stop continuously tilting, stopping the pouring process of the heat-preservation pouring furnace, and continuously flowing the residual molten metal in the circulation pipeline into the tundish.
Step 105: judging whether the difference value reaches a rated value of the molten metal pouring amount;
step 106: and when the difference value reaches the rated value of the pouring amount of the molten metal, generating a control signal for controlling the tilting of the tundish, and finishing the one-time automatic pouring control process aiming at the current casting.
Treat when remaining molten metal completely flows out among the circulation pipeline, the difference reaches the rated value of molten metal pouring volume, begin to vert continuously this moment the tundish that is in the state of stewing, when reaching the biggest angle of verting of tundish (the biggest angle of verting is not lower than 90 to the molten metal that stores in the assurance tundish can all flow out), the tundish automatic stop verts, this in-process the tundish is used for processing the fashioned mould of foundry goods on pouring the production line with the whole pouring of the molten metal that reaches the rated value of self storage to automatic pouring, and the pouring of current small-size foundry goods is accomplished.
In the initial condition, the heat-preservation pouring furnace starts to tilt from 0 degrees, and in the continuous production process of the small castings, the tilting angle of the heat-preservation pouring furnace is the tilting angle of the previous small casting at the moment when the small casting is poured at the current initial moment. And after the current casting is poured, replacing a new mold, and repeating the steps to start the next automatic pouring control process.
According to the first embodiment, in the tilting state of the heat-preservation pouring furnace, the total weight of the tundish and the molten metal poured onto the tundish is obtained, the difference value between the total weight and the pre-measured self weight of the tundish is calculated, when the difference value reaches the rated advance value of the pouring amount of the molten metal, a control signal for controlling the heat-preservation pouring furnace to stop tilting continuously is generated, and after the difference value reaches the rated value of the pouring amount of the molten metal, a control signal for controlling the tundish to tilt continuously is generated, so that all the molten metal reaching the rated value in the tundish can be poured onto the mold. Thus, the small-capacity tundish and the small-size casting are closer to each other in weight than the large-capacity holding and pouring furnace, and the maximum allowable error of the variation of the tundish storing the molten metal (i.e., the rated advance value of the molten metal pouring amount) can be made to reach and exceed the sensitivity of the measuring instrument for measuring the molten metal pouring amount, so that the accurate molten metal storage amount in the tundish can be obtained.
The second embodiment of the invention discloses another automatic pouring control method, which is used for accurately measuring whether the pouring quantity of molten metal provided by the heat-preservation pouring furnace reaches a rated value or not, so as to achieve the purpose of producing small castings by adopting an automatic pouring control technology, and the method comprises the following steps of:
step 201: and under the state that the heat-preservation pouring furnace is tilted, acquiring the total weight of the tundish and the molten metal poured into the tundish.
Step 202: and calculating and obtaining the difference value between the total weight and the self weight of the tundish obtained by pre-measurement.
Step 203: the pouring rate of the molten metal is calculated.
The pouring speed of the molten metal is the pouring amount of the molten metal provided by the heat-preservation pouring furnace in unit time.
Step 204: and comparing the pouring speed with a preset first pouring speed of the molten metal.
Step 205: and when the pouring speed is not equal to the first pouring speed, adjusting the tilting angle of the heat-preservation pouring furnace until the pouring speed reaches the first pouring speed.
As the tilt angle of the holding and pouring furnace increases, when the holding and pouring furnace is continuously tilted at the same angular velocity, the pouring amount of the molten metal is not constant, and specifically, a correspondence relationship θ between the pouring amount v of the molten metal and the tilt angle of the holding and pouring furnace is as shown in fig. 2. By controlling the tilting angular speed of the heat-preserving pouring furnace (i.e., adjusting the tilting angle of the heat-preserving pouring furnace), the pouring speed of the molten metal can be changed.
Whereby the molten metal pours the casting at a constant first pouring rate.
Step 206: and judging whether the difference value reaches a preset rated advance value of the molten metal pouring amount.
Step 207: and when the difference value reaches the rated advance value of the pouring amount of the molten metal, generating a control signal, wherein the control signal is used for controlling the heat-preservation pouring furnace to stop tilting continuously.
Step 208: and judging whether the difference value reaches a rated value of the molten metal pouring amount.
Step 209: and when the difference value reaches a rated value of the molten metal pouring amount, generating a control signal for controlling the tilting of the tundish.
It can be seen from the second embodiment that, by adding the steps 203 to 205 to the first embodiment, the casting can be guaranteed to be poured at the constant first pouring speed, so that the pouring process is controllable, and the problem that the control process cannot respond timely in time due to the excessively high pouring speed or the production efficiency of the casting is affected due to the excessively low pouring speed is avoided.
The third embodiment of the invention discloses another automatic pouring control method for accurately measuring whether the pouring quantity of molten metal provided by the heat-preservation pouring furnace reaches a rated value or not, so as to achieve the purpose of producing small castings by adopting an automatic pouring control technology, and the third embodiment of the invention, as shown in fig. 1c, comprises the following steps:
step 301: and under the state that the heat-preservation pouring furnace is tilted, acquiring the total weight of the tundish and the molten metal poured on the tundish.
Step 302: and calculating and obtaining the difference value between the total weight and the self weight of the tundish obtained by pre-measurement.
Step 303: the pouring rate of the molten metal is calculated.
Step 304: and comparing the pouring speed with a preset first pouring speed of the molten metal.
Step 305: and when the pouring speed is not equal to the first pouring speed, adjusting the tilting angle of the heat-preservation pouring furnace until the pouring speed reaches the first pouring speed.
Step 306: and judging whether the molten metal pouring amount reaches a preset critical value of the molten metal pouring amount, wherein the critical value is smaller than a rated advance value of the molten metal pouring amount.
Although the critical value is smaller than the rated advance value of the molten metal pouring amount, since the critical value is a weight value close to the rated advance value and the critical value occupies a large specific gravity of the tundish storing the molten metal, in practical applications, the maximum allowable error of the critical value of the molten metal pouring amount can also reach and exceed the sensing amount of the measuring instrument to accurately measure whether the pouring amount of the molten metal stored in the tundish reaches the critical value.
Step 307: and when the pouring amount of the molten metal reaches the critical value of the pouring amount of the molten metal, comparing the current pouring speed of the molten metal with a preset second pouring speed of the molten metal.
Step 308: and when the pouring speed is not equal to the second pouring speed, adjusting the tilting angle of the heat-preservation pouring furnace until the pouring speed reaches the second pouring speed.
In the process of pouring a casting, firstly, the first pouring speed is adopted for rapid pouring, when the pouring amount of the molten metal reaches the critical value, the second pouring speed lower than the first pouring speed is adopted for slow pouring, so that the pouring amount of the molten metal can be more accurately controlled when the pouring amount of the molten metal is about to reach the rated advance value, and the phenomenon that the pouring amount of the molten metal exceeds the rated advance value due to the fact that the control process cannot timely respond due to the fact that the pouring speed is too fast is avoided.
Step 309: and judging whether the difference value reaches a preset rated advance value of the molten metal pouring amount.
Step 310: and when the difference value reaches the rated advance value of the pouring amount of the molten metal, generating a control signal, wherein the control signal is used for controlling the heat-preservation pouring furnace to stop tilting continuously.
Step 311: judging whether the difference value reaches a rated value of the molten metal pouring amount;
step 312: and when the difference value reaches a rated value of the molten metal pouring amount, generating a control signal for controlling the tilting of the tundish.
As can be seen from the third embodiment, by adding steps 306 to 308 to the second embodiment, it can be ensured that when the pouring amount of the molten metal reaches the critical value of the pouring amount of the molten metal, the casting is slowly poured at the second pouring speed which is less than the first pouring speed until the pouring amount of the molten metal reaches the rated advance value, so as to prevent the pouring amount of the molten metal from exceeding the rated advance value due to the difficulty in controlling the pouring speed when the pouring amount of the molten metal is about to reach the rated advance value, and therefore, after all the molten metal remaining in the circulation pipeline flows into the tundish, the storage amount of the molten metal in the tundish exceeds the rated value, which causes waste of the molten metal and brings about a safety hazard.
Wherein the maximum allowable error of the weight gain of the tundish (including the rated advance value, the critical value and the rated value of the molten metal pouring amount) can reach and exceed the sensitivity of the metering device.
Based on the embodiment, the fourth embodiment of the invention discloses another automatic pouring control method to accurately measure whether the pouring quantity of the molten metal provided by the heat-preservation pouring furnace reaches a rated value, so that the aim of producing small castings by adopting an automatic pouring control technology is fulfilled.
Under the condition that the pouring speed is not adjusted, along with the change of the tilting angle of the heat-preserving pouring furnace, the change relationship of the pouring speed is as shown in fig. 2, and considering that the response time of the pouring speed to the pouring speed control process is changed under different tilting angles, referring to fig. 1d, before the heat-preserving pouring furnace is about to perform tilting action to pour the current casting (namely before the total weight of the tundish and the molten metal poured into the tundish is obtained), the method further comprises the following steps: initializing data such as a first pouring speed, a second pouring speed, a critical value of a molten metal pouring amount, a rated advance value of the molten metal pouring amount and the like of the current casting in the automatic pouring control process, specifically
Step s 1: acquiring a tilting angle of the heat-preservation pouring furnace in the current state;
step s 2: determining a tilting angle interval in which the tilting angle is positioned so as to determine preset critical values of the molten metal pouring quantity, a rated advance value of the molten metal pouring quantity, and corresponding values of the first pouring speed and the second pouring speed;
the tilting angle interval is a plurality of tilting angle ranges which divide the maximum tilting angle range of the heat-preserving pouring furnace into, and each tilting angle interval is correspondingly provided with a group of critical values of the pouring quantity of the molten metal, a rated advance value of the pouring quantity of the molten metal, and corresponding values of a first pouring speed and a second pouring speed; wherein the second pouring rate is less than the first pouring rate, the threshold value of the amount of molten metal poured is less than the nominal advance value of the amount of molten metal poured, and the nominal value of the amount of molten metal poured is slightly lower than the nominal value of the casting.
For example, the maximum range of the tilting angle of the heat-preserving pouring furnace is 0 to 90 degrees, the heat-preserving pouring furnace is divided into nine groups of equal tilting angle ranges, the tilting angle ranges are 0 to 10 degrees, 10 to 20 degrees, 20 to 30 degrees, 30 to 40 degrees, 40 to 50 degrees, 50 to 60 degrees, 60 to 70 degrees, 70 to 80 degrees and 80 to 90 degrees in sequence, each group of tilting angle ranges correspond to different preset first pouring speeds, second pouring speeds, critical values of molten metal pouring amount and rated advance values of molten metal pouring amount, specific numerical values of the parameters can be determined according to actual conditions, and on the premise that the production efficiency of castings is guaranteed, the situation that the pouring speed of the tundish is too fast, the automatic pouring control method cannot respond to the measurement of the difference value and the control of the tilting angle of the heat-preserving pouring furnace in time is avoided, and the condition of insufficient pouring or overfull pouring of the casting occurs, thereby ensuring the product quality. And if the tilting angle of the heat-preservation pouring furnace before the current casting is poured is determined to be within the 50-60-degree interval, automatically giving the parameters related in the automatic pouring control method the corresponding parameter values within the 50-60-degree interval.
It should be noted that the embodiment of the present invention is not limited to the production of small castings, and can be applied to any casting that satisfies the requirement that the maximum allowable error of the casting, such as the rated advance value, the critical value, and the rated value, is not less than the sensitivity of the measuring instrument.
The fifth embodiment of the invention discloses an automatic pouring controller, which is used for accurately measuring whether the pouring quantity of molten metal provided by a heat-preservation pouring furnace reaches a rated value or not, so that the aim of producing small castings by adopting an automatic pouring control technology is fulfilled:
the automatic pouring controller is used for acquiring the total weight of a tundish and molten metal poured into the tundish under the state that a heat-preservation pouring furnace is tilted, and the tundish is a small-volume pouring ladle which is connected between the mould and the heat-preservation pouring furnace and is used for temporarily storing the molten metal flowing out of the heat-preservation pouring furnace; calculating and obtaining a difference value between the total weight and the self weight of the tundish obtained by pre-measurement; judging whether the difference value reaches a rated advanced value of the preset molten metal pouring amount or not; when the difference value reaches a rated advance value of the molten metal pouring amount, generating a control signal for controlling the heat-preservation pouring furnace to stop continuously tilting; judging whether the difference value reaches a rated value of the molten metal pouring amount; and a controller for generating a control signal for controlling tilting of the tundish when the difference reaches a rated value of the molten metal pouring amount.
Preferably, the automatic pouring controller may be further configured to calculate a pouring speed of the molten metal after calculating and obtaining a difference between the total weight and a previously measured weight of the tundish itself; comparing the pouring speed with a preset first pouring speed of the molten metal; and when the pouring speed is not equal to the first pouring speed, adjusting the tilting angle of the heat-preservation pouring furnace until the pouring speed reaches the first pouring speed.
Preferably, the automatic pouring controller may be further configured to determine whether the molten metal pouring amount reaches a preset critical value of the molten metal pouring amount, the critical value being smaller than the rated advance value of the molten metal pouring amount, before determining whether the difference reaches the preset rated advance value of the molten metal pouring amount; when the pouring amount of the molten metal reaches the critical value of the pouring amount of the molten metal, comparing the current pouring speed of the molten metal with a preset second pouring speed of the molten metal; and when the pouring speed is not equal to the second pouring speed, adjusting the tilting angle of the heat-preservation pouring furnace until the pouring speed reaches the second pouring speed.
The sixth embodiment of the invention discloses an automatic pouring controller, which is used for accurately measuring whether the pouring quantity of molten metal provided by a heat-preservation pouring furnace reaches a rated value or not so as to achieve the purpose of producing small castings by adopting an automatic pouring control technology, and particularly relates to a method for controlling the pouring quantity of molten metal in a heat-preservation pouring furnace
On the basis of the fifth embodiment, the automatic pouring controller may be further configured to obtain a tilting angle of the heat-preserving pouring furnace in a current state before obtaining a total weight of the tundish and the molten metal poured into the tundish; a controller for determining a tilting angle section in which the tilting angle is located, so as to determine preset critical values of the molten metal pouring amount, a rated advance value of the molten metal pouring amount, and corresponding values of the first pouring speed and the second pouring speed;
the tilting angle interval is a plurality of tilting angle ranges which divide the maximum tilting angle range of the heat-preserving pouring furnace into, and each tilting angle interval is correspondingly provided with a group of critical values of the pouring quantity of the molten metal, a rated advance value of the pouring quantity of the molten metal, and corresponding values of a first pouring speed and a second pouring speed; wherein the second pouring rate is less than the first pouring rate, the threshold value of the molten metal pouring amount is less than a nominal advance value of the molten metal pouring amount, and the nominal advance value of the molten metal pouring amount is slightly lower than a nominal value of the casting.
The seventh embodiment of the present invention discloses an automatic pouring control system, which is used for accurately measuring whether the pouring amount of molten metal provided by the heat preservation pouring furnace reaches a rated value, so as to achieve the purpose of producing small castings by adopting an automatic pouring control technology, and the automatic pouring control system, referring to fig. 3a, comprises: a heat-preserving pouring furnace 301, a braking device 302, a mold 303 for processing and molding a casting, a tundish 304, a measuring device 305 for detecting the total weight of the tundish 304 and the molten metal poured into the tundish 304, and an automatic pouring controller 306 according to any one of the fifth to seventh embodiments;
the automatic pouring controller 306 is electrically connected to the measuring device 305, and is configured to obtain the total weight of the tundish 304 and the molten metal poured onto the tundish 304 detected by the measuring device 305;
the braking device 302 is connected with the heat-preservation pouring furnace 301 and the tundish 304; the automatic pouring controller 306 is electrically connected to the braking device 302, and is configured to control tilting and stopping operations of the heat-preserving pouring furnace 301 or the tundish 304 through the braking device 302:
when the heat-preserving pouring furnace 301 or the tundish 304 is in a continuous tilting state, the molten metal flows out of the heat-preserving pouring furnace 301 or the tundish 304, and when the heat-preserving pouring furnace 301 or the tundish 304 stops continuously tilting, the molten metal stops flowing out;
the braking device 302 may be a braking device including a hydraulic station and a mechanical transmission device thereof, or a braking device including a frequency converter, a braking motor and a mechanical transmission device thereof, which is not limited.
The gauge 305 may be an electronic scale that senses a quantity that is not greater than the maximum allowable error of the rated value of the molten metal pouring quantity.
The eighth embodiment of the present invention discloses another automatic pouring control system, which is used for accurately measuring whether the pouring amount of the molten metal provided by the heat preservation pouring furnace reaches a rated value, so as to achieve the purpose of producing small castings by adopting an automatic pouring control technology, and the system of fig. 3b includes: a heat-preserving pouring furnace 401, a braking device 402, a mold 403, a tundish 404, a metering device 405, an automatic pouring controller 406 according to the sixth embodiment, and an angle sensor (not shown in the figure) for detecting the tilting angle of the heat-preserving pouring furnace;
the automatic pouring controller 306 is electrically connected to the measuring device 304, and is configured to obtain a total weight of the tundish 303 and the molten metal poured onto the tundish 303 detected by the measuring device 302;
the braking device 302 is connected with the heat-preservation pouring furnace 301; the automatic pouring controller 306 is electrically connected with the braking device 302 and is used for controlling the heat-preserving pouring furnace 301 to tilt or stop through the braking device 302;
the automatic pouring controller 406 is electrically connected to the measuring device 405, and is configured to obtain a total weight of the tundish 404 and the molten metal poured onto the tundish 404, which is detected by the measuring device 405;
the braking device 402 is respectively connected with the heat-preservation pouring furnace 401 and the tundish 404; the automatic pouring controller 406 is electrically connected to the braking device 402, and the tilting and stopping operations of the holding pouring furnace 401 or the tundish 404 can be controlled by the braking device 402:
the automatic pouring controller 406 is electrically connected to the angle sensor, and is configured to obtain, through the angle sensor, a tilting angle of the holding pouring furnace 401 before each casting is poured.
In summary, in the embodiment of the present invention, in a tilting state of the heat-preserving pouring furnace, the total weight of the tundish with a small capacity and the molten metal poured into the tundish is obtained, and the difference between the total weight and the pre-measured own weight of the tundish is calculated to obtain the pouring amount of the molten metal; and when the pouring amount of the molten metal reaches a preset rated advance value of the pouring amount of the molten metal, generating a control signal for controlling the heat-preservation pouring furnace to stop continuously tilting, and when the pouring amount of the molten metal reaches the rated value of the pouring amount of the molten metal through calculation, generating a control signal for controlling the tundish to continuously tilt from a standing state, so that the automatic pouring production of small castings is realized. Compared with the prior art, the weight difference of the heat-preservation pouring furnace before pouring and after pouring is obtained and stored to measure whether the pouring amount of the molten metal reaches a rated value, but the maximum allowable error of the rated value of the small casting is smaller than the sensitivity of a measuring instrument for some small castings, so that the small casting cannot be automatically poured and formed; the embodiment of the invention measures the pouring amount of the molten metal by acquiring the weight difference between the tundish storing the molten metal before pouring and the tundish after pouring, compared with the heat-preservation pouring furnace, the weight of the tundish and the small casting is closer, a measuring device with smaller range and higher precision can be adopted in the measuring process, the maximum allowable error of the variable amount of the tundish storing the molten metal can reach and exceed the sensing amount of the measuring device for measuring the pouring amount of the molten metal, and accurate data of the pouring amount of the molten metal is provided for the automatic pouring control process, so that whether the pouring amount of the molten metal reaches a rated value is determined, and the problem that the small casting cannot be produced by adopting an automatic pouring method in the prior art is solved.
In the above embodiment, the difference between the molten metal pouring amount and the theoretical rated value of the casting does not exceed the maximum allowable error of the rated value, and the molten metal pouring amount is considered to reach the rated value; if the difference between the pouring amount of the molten metal and the theoretical rated advance value of the casting does not exceed the maximum allowable error of the rated advance value, the pouring amount of the molten metal is considered to reach the rated advance value; and if the difference between the pouring amount of the molten metal and the theoretical critical value of the casting does not exceed the maximum allowable error of the critical value, the pouring amount of the molten metal is considered to reach the critical value. When the maximum allowable error of the rated value is larger than the sensing quantity of the measuring instrument, the maximum allowable error of the rated advance value and the maximum allowable error of the critical value are also larger than the sensing quantity of the measuring instrument.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The automatic pouring controller and the automatic pouring control system disclosed by the embodiment correspond to the working principle of the automatic pouring control method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the description of the method part.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the embodiments. Thus, the present embodiments are not intended to be limited to the embodiments shown herein but are to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. An automatic pouring control method, characterized by comprising:
the method comprises the following steps of obtaining the total weight of a tundish and molten metal poured into the tundish under the state that a heat-preservation pouring furnace is tilted, wherein the tundish is a small-capacity pouring ladle which is connected between a mould used for processing and molding castings on an automatic pouring production line and the heat-preservation pouring furnace and is used for temporarily storing the molten metal flowing out of the heat-preservation pouring furnace;
calculating and obtaining a difference value between the total weight and the self weight of the tundish obtained by pre-measurement;
judging whether the difference value reaches a rated advanced value of the preset molten metal pouring amount or not;
when the difference value reaches a rated advance value of the molten metal pouring amount, generating a control signal for controlling the heat-preservation pouring furnace to stop continuously tilting;
judging whether the difference value reaches a rated value of the molten metal pouring amount;
generating a control signal for controlling tilting of the tundish when the difference value reaches a rated value of the molten metal pouring amount;
after the difference between the total weight and the self weight of the tundish obtained by pre-measurement is calculated and obtained, the method further comprises the following steps:
calculating the pouring speed of the molten metal;
comparing the pouring speed with a preset first pouring speed of the molten metal;
when the pouring speed is not equal to the first pouring speed, adjusting the tilting angle of the heat-preservation pouring furnace until the pouring speed reaches the first pouring speed;
before the step of judging whether the difference value reaches a preset rated advance value of the molten metal pouring amount, the method further comprises the following steps:
judging whether the pouring amount of the molten metal reaches a preset critical value of the pouring amount of the molten metal, wherein the critical value is smaller than a rated advance value of the pouring amount of the molten metal;
when the pouring amount of the molten metal reaches the critical value of the pouring amount of the molten metal, comparing the current pouring speed of the molten metal with a preset second pouring speed of the molten metal;
when the pouring speed is not equal to the second pouring speed, adjusting the tilting angle of the heat-preservation pouring furnace until the pouring speed reaches the second pouring speed;
the second pouring speed is lower than the first pouring speed.
2. The automatic pouring control method according to claim 1, wherein said obtaining the total weight of the tundish and the molten metal poured into the tundish further comprises:
acquiring a tilting angle of the heat-preservation pouring furnace in the current state;
determining a tilting angle interval in which the tilting angle is positioned so as to determine preset critical values of the molten metal pouring quantity, a rated advance value of the molten metal pouring quantity, and corresponding values of the first pouring speed and the second pouring speed;
the tilting angle interval is a plurality of tilting angle ranges which divide the maximum tilting angle range of the heat-preserving pouring furnace into, and each tilting angle interval is correspondingly provided with a group of critical values of the pouring quantity of the molten metal, a rated advance value of the pouring quantity of the molten metal, and corresponding values of a first pouring speed and a second pouring speed; wherein the second pouring rate is less than the first pouring rate, the threshold value of the molten metal pouring amount is less than a nominal advance value of the molten metal pouring amount, and the nominal advance value of the molten metal pouring amount is slightly lower than a nominal value of the casting.
3. An automatic pouring controller is characterized in that,
the automatic pouring controller is used for acquiring the total weight of a tundish and molten metal poured into the tundish under the state that a heat-preservation pouring furnace is tilted, and the tundish is a small-volume pouring ladle which is connected between the mould and the heat-preservation pouring furnace and is used for temporarily storing the molten metal flowing out of the heat-preservation pouring furnace; calculating and obtaining a difference value between the total weight and the self weight of the tundish obtained by pre-measurement; judging whether the difference value reaches a rated advanced value of the preset molten metal pouring amount or not; when the difference value reaches a rated advance value of the molten metal pouring amount, generating a control signal for controlling the heat-preservation pouring furnace to stop continuously tilting; judging whether the difference value reaches a rated value of the molten metal pouring amount; a controller for generating a control signal for controlling tilting of the tundish when the difference reaches a rated value of the molten metal pouring amount;
the automatic pouring controller is used for calculating the pouring speed of the molten metal after calculating and obtaining the difference value between the total weight and the self weight of the tundish obtained by measurement in advance; comparing the pouring speed with a preset first pouring speed of the molten metal; when the pouring speed is not equal to the first pouring speed, adjusting the tilting angle of the heat-preservation pouring furnace until the pouring speed reaches the first pouring speed;
the automatic pouring controller is used for judging whether the pouring amount of the molten metal reaches a preset critical value of the pouring amount of the molten metal before judging whether the difference value reaches the preset rated advance value of the pouring amount of the molten metal, and the critical value is smaller than the rated advance value of the pouring amount of the molten metal; when the pouring amount of the molten metal reaches the critical value of the pouring amount of the molten metal, comparing the current pouring speed of the molten metal with a preset second pouring speed of the molten metal; and when the pouring speed is not equal to the second pouring speed, adjusting the tilting angle of the heat-preservation pouring furnace until the pouring speed reaches the second pouring speed.
4. The automatic pouring controller according to claim 3,
the automatic pouring controller is used for acquiring the tilting angle of the heat-preservation pouring furnace in the current state before acquiring the total weight of the tundish and the molten metal poured into the tundish; a controller for determining a tilting angle section in which the tilting angle is located, so as to determine preset critical values of the molten metal pouring amount, a rated advance value of the molten metal pouring amount, and corresponding values of the first pouring speed and the second pouring speed;
the tilting angle interval is a plurality of tilting angle ranges which divide the maximum tilting angle range of the heat-preserving pouring furnace into, and each tilting angle interval is correspondingly provided with a group of critical values of the pouring quantity of the molten metal, a rated advance value of the pouring quantity of the molten metal, and corresponding values of a first pouring speed and a second pouring speed; wherein the second pouring rate is less than the first pouring rate, the threshold value of the amount of molten metal poured is less than the nominal advance value of the amount of molten metal poured, and the nominal value of the amount of molten metal poured is slightly lower than the nominal value of the casting.
5. An automatic pouring control system, comprising:
a heat-insulating pouring furnace, a braking device, a mold for processing and molding a casting, a tundish, a metering device for detecting the total weight of the tundish and the molten metal poured into the tundish and an automatic pouring controller according to claim 3;
the automatic pouring controller is respectively electrically connected with the measuring instruments and is used for acquiring the total weight of the tundish detected by the measuring instruments and the molten metal poured into the tundish;
the braking device is respectively connected with the heat-preservation pouring furnace and the tundish; the automatic pouring controller is electrically connected with the braking device and used for controlling the tilting and stopping actions of the heat-preservation pouring furnace or the tundish through the braking device.
6. The automatic gating control system of claim 5, further comprising: the angle sensor is used for detecting the tilting angle of the heat-preservation pouring furnace;
the automatic pouring controller is used for acquiring the tilting angle of the heat-preservation pouring furnace in the current state before acquiring the total weight of the tundish and the molten metal poured into the tundish; a controller for determining a tilting angle section in which the tilting angle is located, so as to determine preset critical values of the molten metal pouring amount, a rated advance value of the molten metal pouring amount, and corresponding values of the first pouring speed and the second pouring speed; the tilting angle interval is a plurality of tilting angle ranges which divide the maximum tilting angle range of the heat-preserving pouring furnace into, and each tilting angle interval is correspondingly provided with a group of critical values of the pouring quantity of the molten metal, a rated advance value of the pouring quantity of the molten metal, and corresponding values of a first pouring speed and a second pouring speed;
the automatic pouring controller is electrically connected with the angle sensor and used for acquiring the tilting angle of the heat-preservation pouring furnace before each casting is poured through the angle sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310180083.2A CN103273051B (en) | 2013-05-15 | 2013-05-15 | Automatic pouring control method, controller and control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310180083.2A CN103273051B (en) | 2013-05-15 | 2013-05-15 | Automatic pouring control method, controller and control system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103273051A CN103273051A (en) | 2013-09-04 |
| CN103273051B true CN103273051B (en) | 2015-04-15 |
Family
ID=49055729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310180083.2A Active CN103273051B (en) | 2013-05-15 | 2013-05-15 | Automatic pouring control method, controller and control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103273051B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103658620B (en) * | 2013-11-29 | 2016-02-10 | 安徽省宁国市宁沪钢球有限公司 | A kind of flow control type steel ball mould automatic feed system and control method thereof |
| CN103658621B (en) * | 2013-11-29 | 2015-10-21 | 安徽省宁国市宁沪钢球有限公司 | A kind of temperature control type steel ball mould automatic feed system and control method thereof |
| CN104999061B (en) * | 2015-07-06 | 2017-02-01 | 湖南红宇耐磨新材料股份有限公司 | Constant-volume casting control method and system for tilting type casting machine |
| CN109719276A (en) * | 2017-10-30 | 2019-05-07 | 科华控股股份有限公司 | Process for suction casting filling time Simple measurement device |
| CN107790665B (en) * | 2017-10-31 | 2021-04-23 | 首钢京唐钢铁联合有限责任公司 | Automatic control method and system for liquid level of tundish |
| CN109822082A (en) * | 2019-01-25 | 2019-05-31 | 河南卫华重型机械股份有限公司 | A kind of mold automatic casting flow control methods |
| CN115178730B (en) * | 2022-08-05 | 2023-06-16 | 北京北方恒利科技发展有限公司 | Quantitative pouring device and method for copper alloy intermediate frequency furnace |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62282768A (en) * | 1986-05-30 | 1987-12-08 | Furukawa Electric Co Ltd:The | Controlling system for tilting molten metal pouring guidance furnace |
| JPH11123532A (en) * | 1997-10-27 | 1999-05-11 | Mazda Motor Corp | Automatic molten metal pouring machine |
| JP2001259825A (en) * | 2000-03-14 | 2001-09-25 | Nippon Steel Corp | Method for controlling tilting speed of ladle |
| JP2004136330A (en) * | 2002-10-18 | 2004-05-13 | Furukawa Electric Co Ltd:The | Cylinder type holding furnace and method for controlling supply of molten metal in the same |
| JP2006272388A (en) * | 2005-03-29 | 2006-10-12 | Yokohama Rubber Co Ltd:The | Method and apparatus for control of pouring from molten metal furnace in gravity casting method, and method for manufacturing metallic die for vulcanizing tire to be manufactured by the same method |
| CN102883838A (en) * | 2010-08-26 | 2013-01-16 | 新东工业株式会社 | Pouring equipment and method of pouring using the pouring equipment |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101003270B1 (en) * | 2007-04-28 | 2010-12-21 | 고꾸리쯔 다이가꾸 호우징 도요하시 기쥬쯔 가가꾸 다이가꾸 | Tilting automatic pouring method and storage medium |
-
2013
- 2013-05-15 CN CN201310180083.2A patent/CN103273051B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62282768A (en) * | 1986-05-30 | 1987-12-08 | Furukawa Electric Co Ltd:The | Controlling system for tilting molten metal pouring guidance furnace |
| JPH11123532A (en) * | 1997-10-27 | 1999-05-11 | Mazda Motor Corp | Automatic molten metal pouring machine |
| JP2001259825A (en) * | 2000-03-14 | 2001-09-25 | Nippon Steel Corp | Method for controlling tilting speed of ladle |
| JP2004136330A (en) * | 2002-10-18 | 2004-05-13 | Furukawa Electric Co Ltd:The | Cylinder type holding furnace and method for controlling supply of molten metal in the same |
| JP2006272388A (en) * | 2005-03-29 | 2006-10-12 | Yokohama Rubber Co Ltd:The | Method and apparatus for control of pouring from molten metal furnace in gravity casting method, and method for manufacturing metallic die for vulcanizing tire to be manufactured by the same method |
| CN102883838A (en) * | 2010-08-26 | 2013-01-16 | 新东工业株式会社 | Pouring equipment and method of pouring using the pouring equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103273051A (en) | 2013-09-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103273051B (en) | Automatic pouring control method, controller and control system | |
| KR100984597B1 (en) | Storage medium storing automatic pouring control method and tilt movement control program for ladle | |
| US3818971A (en) | Method for casting blocks | |
| US8114338B2 (en) | Tilting-type automatic pouring method and storage medium | |
| US20160096222A1 (en) | A method for a pouring control and a storage medium for storing programs for causing a computer to carry out a process for controllihg pouring | |
| JPS6045029B2 (en) | Control device for casting equipment | |
| CN104999043A (en) | Online measuring device and method for opening degree of sliding nozzle of continuous casting ladle | |
| Xu et al. | Self‐optimization of the V/P switchover and packing pressure for online viscosity compensation during injection molding | |
| CN206527331U (en) | Molten steel pouring control system | |
| KR101670999B1 (en) | Quantitative pouring system | |
| CN106694863A (en) | Molten steel pouring control method and device | |
| JP4650055B2 (en) | Method and apparatus for controlling hot water from a hot water furnace in the gravity casting method, and method for producing a mold for tire vulcanization manufactured by the hot water control method | |
| JP3322865B2 (en) | Method and apparatus for casting metal articles by antigravity feeding of metal molds | |
| JP6435988B2 (en) | Breakout prediction method, breakout prevention method, solidified shell thickness measurement method, breakout prediction device and breakout prevention device in continuous casting | |
| JPH08168871A (en) | Apparatus for pouring molten metal | |
| MX2014004229A (en) | Method for controlling a casting system. | |
| CN202984653U (en) | Molten iron convey trolley for centrifugal casting | |
| KR102209587B1 (en) | METHOD FOR DETERMINING INTRODUCTION AMOUNT OF Fe-Ti | |
| JPH02200362A (en) | Method for predicting and restraining nozzle clogging in continuous casting apparatus | |
| JP6372746B2 (en) | Automatic pouring method | |
| JPH0361536B2 (en) | ||
| TWI552816B (en) | Active liquid level control system and control method thereof | |
| KR101119949B1 (en) | Method for determining time of arrival of resin flow in mold | |
| KR101177813B1 (en) | Control Method for a Short Period Mold Level Hunting in Continuous Cast | |
| JP2643651B2 (en) | Automatic hot water distribution device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171221 Address after: 617000 Sichuan Panzhihua East District Innovation and Development Industrial Park Patentee after: Sichuan Hongyu new Mstar Technology Ltd Address before: 410600 No. 068 Jinsha West Road, Jinzhou new district, Hunan, Changsha Patentee before: Hunan Hongyu Wear Resistant New Materials Co., Ltd. |
|
| TR01 | Transfer of patent right |