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CN119159770A - A mold injection molding speed control method and system - Google Patents

A mold injection molding speed control method and system Download PDF

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Publication number
CN119159770A
CN119159770A CN202411666455.7A CN202411666455A CN119159770A CN 119159770 A CN119159770 A CN 119159770A CN 202411666455 A CN202411666455 A CN 202411666455A CN 119159770 A CN119159770 A CN 119159770A
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China
Prior art keywords
data
injection
mold
speed
injection speed
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CN202411666455.7A
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CN119159770B (en
Inventor
刘维强
马玉菲
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Shandong Wanrong Mould Co ltd
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Shandong Wanrong Mould Co ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/76—Measuring, controlling or regulating
    • B29C45/77—Measuring, controlling or regulating of velocity or pressure of moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/76—Measuring, controlling or regulating
    • B29C45/78—Measuring, controlling or regulating of temperature
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
    • B29C2945/76—Measuring, controlling or regulating
    • B29C2945/76494—Controlled parameter
    • B29C2945/76498—Pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
    • B29C2945/76—Measuring, controlling or regulating
    • B29C2945/76494—Controlled parameter
    • B29C2945/76531—Temperature
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
    • B29C2945/76—Measuring, controlling or regulating
    • B29C2945/76494—Controlled parameter
    • B29C2945/76595—Velocity

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

The invention belongs to the technical field of injection molding of molds, and discloses a method and a system for controlling the injection molding speed of a mold; the method comprises the steps of collecting comprehensive data, judging the comprehensive data through an outlier formula to obtain preliminary stable data and preliminary outlier data, carrying out stable treatment on the preliminary outlier data through a mapping formula to obtain the comprehensive stable data, obtaining a mold injection stage according to the comprehensive stable data, obtaining initial injection speed according to the mold injection stage, carrying out mold injection at the initial injection speed, obtaining an injection speed adjusting factor according to the comprehensive stable data, judging whether the initial injection speed is adjusted or not through the injection speed adjusting factor, finishing the mold injection according to a judging result, and carrying out accurate adjustment and control on the injection speed in the process of mold injection, so that the qualification rate of injection products is further increased.

Description

Method and system for controlling injection molding speed of mold
Technical Field
The invention relates to the technical field of mold injection molding, in particular to a method and a system for controlling the speed of mold injection molding.
Background
The patent with the application publication number of CN115320051A discloses a control method of a plastic molding injection mold, relates to the technical field of plastic molding, and particularly relates to a control method of a plastic molding injection mold. The temperature parameters obtained by the temperature sensors are used for judging whether the external environment temperature is too low or not so as to start the heating module, thereby ensuring that the temperature of the mold is not too low and further ensuring that the injection molding process is normally carried out, or judging whether the temperature change speed of the mold meets the requirement or not according to the external temperature and the temperature of the mold, and further ensuring the yield of plastic parts.
However, in the injection molding process, the injection molding process comprises an initial rapid filling stage, a middle-stage deceleration filling stage and a final low-speed filling stage, only the influence of temperature on injection molding is considered, and the injection speed is not precisely controlled, so that the defect of the injection molded product is caused, the yield of plastic parts is reduced, the injection speed is also switched in the switching process of the initial rapid filling stage, the middle-stage deceleration filling stage and the final low-speed filling stage, the mold cavity pressure and the mold cavity temperature can be changed in the switching process of the injection speed, the injection speed is directly influenced by the change of the mold cavity pressure and the mold cavity temperature, and the injection speed is not adjusted according to the change of the mold cavity pressure and the mold cavity temperature, so that the injection molded product has the problems of flash, uneven surface and the like.
In view of the above, the present invention provides a method and a system for controlling injection molding speed of a mold to solve the above-mentioned problems.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides the following technical scheme that the method for controlling the injection molding speed of the die comprises the following steps:
S1, collecting comprehensive data, judging the comprehensive data through an outlier formula to obtain preliminary stable data and preliminary outlier data, and stably processing the preliminary outlier data through a mapping formula to obtain comprehensive stable data;
s2, obtaining a mold injection stage according to comprehensive stable data, and obtaining an initial injection speed according to the mold injection stage;
And S3, carrying out mold injection by adopting an initial injection speed, obtaining an injection speed adjusting factor according to comprehensive stable data, judging whether the initial injection speed is adjusted or not through the injection speed adjusting factor, and finishing the mold injection according to a judging result.
Further, the integrated data includes mold cavity data and injection molding data;
The die cavity data comprise die cavity pressure, the volume and the temperature of air in the die cavity;
the injection molding data includes the temperature and melt index of the molten plastic.
Further, the method for obtaining the preliminary stable data and the preliminary outlier data by judging and processing the comprehensive data through the outlier formula comprises the following steps:
A1, acquiring a judging value of the die cavity data at each time point according to an outlier formula,
Then;
Wherein, As an index of the point in time,As the number of time points in time,Is the firstDie cavity data at various time points,Is the firstThe next time point of the time pointsThe data of the mold cavity at the location,Is the firstThe last time point of the time pointsThe data of the mold cavity at the location,Is the firstThe decision value of the outlier formula at each point in time,、、AndAre all adjusting coefficients;
Step A2, setting an outlier threshold When (when)When the die cavity data is abnormal, the die cavity data is recorded as preliminary outlier die cavity data, and the preliminary outlier die cavity data is stably processed by using a mapping formula;
When (when) When the mold cavity data is normal, the mold cavity data is recorded as preliminary stable mold cavity data;
step A3, repeating the steps A1 and A2 to process the injection molding data to obtain preliminary outlier injection molding data and preliminary stable injection molding data;
Step A4. Collecting Preliminary stationary mold cavity data and preliminary stationary injection molding data at various time points, obtaining preliminary stationary data, and collectingPreliminary outlier cavity data and preliminary outlier injection molding data at each time point, preliminary outlier data is obtained.
Further, the method for performing the stationary processing on the preliminary outlier data through the mapping formula to obtain the comprehensive stationary data comprises the following steps:
Step B1, setting a mapping formula as follows:
;
Wherein, Is the firstMapping the cavity data at the various points in time,In order to take the intermediate values after the ascending order,Is the firstThe next time point of the time pointsThe data of the mold cavity at the location,Is the firstThe last time point of the time pointsMold cavity data at;
Step B2, using the mapping die cavity data to replace corresponding preliminary outlier die cavity data to form preliminary stable data, judging the preliminary stable data again through an outlier formula, eliminating the preliminary outlier die cavity data marked again at the time point, calculating a new data value by using a filling formula, filling the new data value into the corresponding time point, marking the new data value as the stable die cavity data at the time point, and marking the preliminary stable die cavity data as the stable die cavity data;
Filling the formula: ; Is the first Filling the data value output by the formula at each time point;
Step B3, repeating the steps B1 and B2 to process the preliminary outlier injection molding data and the preliminary stable injection molding data so as to obtain stable injection molding data;
step B4, collecting And (3) obtaining comprehensive stable data by stable die cavity data and stable injection molding data at each time point.
Further, the method for obtaining the initial injection speed according to the injection stage of the mould according to the comprehensive stable data comprises the following steps:
Calculate the first Ratio of the volume of air in the mold cavity to the volume of the mold cavity at each point in timeAnd set the threshold range of the duty ratio;
When (when)In the process, the injection stage of the mould is an initial rapid filling stage, and the initial injection speed is set to be;
At that timeThe injection stage of the mould is a medium-term deceleration filling stage, and the initial injection speed is set as;
At that timeThe injection stage of the mould is the final low-speed filling stage, and the initial injection speed is set as。
Further, the method for performing the injection molding of the mold by adopting the initial injection speed, obtaining an injection speed adjusting factor according to comprehensive stable data, judging whether the initial injection speed is adjusted or not through the injection speed adjusting factor, and completing the injection molding of the mold according to a judging result comprises the following steps:
The injection speed adjusting factors comprise injection speed adjusting coefficients, pressure changing parameters, temperature changing parameters and temperature-pressure combined coefficients;
Step C1, in the initial rapid filling stage, obtaining an injection speed regulating coefficient according to the pressure of a die cavity, the temperature and the melt index of molten plastic, and setting a threshold range of the injection speed regulating coefficient ;
When (when)Or (b)At the time of initial injection speedAdjusting, and performing mold injection at an initial rapid filling stage through the adjusted injection speed; Is the first Injection speed adjustment coefficients at the respective time points;
When (when) When not to the initial injection speedIs adjusted by the initial injection speedPerforming mold injection at an initial rapid filling stage;
Step C2, in the middle deceleration filling stage, the injection speed is adjusted to be Acquiring injection speed and adjusting toStart time of (2)End time;
According toTo the point ofDetermining whether to inject speed based on the pressure change curve of the mold cavity and the temperature change curve of the molten plastic in the time periodAdjusting, and completing mould injection at a medium-term deceleration filling stage according to a judging result;
The method for acquiring the pressure change curve graph of the die cavity is to establish a blank coordinate system Sequentially filling time points into the abscissa of a blank coordinate system, setting the ordinate of the blank coordinate system as the mold cavity pressure, filling the mold cavity pressure corresponding to the time points into the blank coordinate system, and drawing a curve;
step C3, in the final low-speed filling stage, the injection speed is adjusted to be Acquiring injection speed and adjusting toStart time of (2)End time;
According toTo the point ofDetermining whether to inject speed based on the pressure change curve of the mold cavity and the temperature change curve of the molten plastic in the time periodAnd (3) adjusting, and completing the injection molding of the mold in the final low-speed filling stage according to the judging result.
Further, the pair of initial injection speedsThe method for adjusting comprises the following steps:
When (when) At the time, the normalized results of the mold cavity pressure, the temperature of the molten plastic and the melt index are obtained, and the normalized results of the melt index and the initial injection speed are obtained according to the mold cavity pressure, the temperature of the molten plastic and the melt indexObtaining a tuning formula: the initial injection speed is adjusted by a widening formula Adjusting;
When (when) In time, the normalized result of the melt index and the initial injection speed are based on the mold cavity pressure, the temperature of the molten plastic, and the temperature of the molten plasticObtaining a reduction formula: The initial injection speed is adjusted by a small adjusting formula Adjusting;
Wherein, For initial injection speedThe injection speed after the adjustment is carried out,Is the firstNormalized results for the mold cavity pressure at each time point,Is the firstNormalization of the temperature of the molten plastic at each time point,Is the firstNormalization of the melt index of the molten plastic at each time point,In order to adjust the coefficient of the coefficient,For initial injection speedThe injection speed after the adjustment is carried out,To adjust the coefficients.
Further, according toTo the point ofDetermining whether to inject speed based on the pressure change curve of the mold cavity and the temperature change curve of the molten plastic in the time periodThe method for adjusting comprises the following steps:
When (when) At the time, the normalized results of the mold cavity pressure, the temperature of the molten plastic and the melt index are obtained, and the normalized results of the melt index and the initial injection speed are obtained according to the mold cavity pressure, the temperature of the molten plastic and the melt indexObtaining a tuning formula: initial injection speed is controlled by a widening formula Adjusting;
When (when) In time, the normalized result of the melt index and the initial injection speed are based on the mold cavity pressure, the temperature of the molten plastic, and the temperature of the molten plasticObtaining a reduction formula: Initial injection speed is calculated by a reduction formula Adjusting;
Wherein, For initial injection speedThe injection speed after the adjustment is carried out,Is the firstNormalized results for the mold cavity pressure at each time point,Is the firstNormalization of the temperature of the molten plastic at each time point,Is the firstNormalization of the melt index of the molten plastic at each time point,In order to adjust the coefficient of the coefficient,For initial injection speedThe injection speed after the adjustment is carried out,And adjusting the coefficient.
Further, according toTo the point ofDetermining whether to inject speed based on the pressure change curve of the mold cavity and the temperature change curve of the molten plastic in the time periodThe method for adjusting comprises the following steps:
According to To the point ofObtaining temperature-pressure combination coefficient by using a die cavity pressure change curve graph and a molten plastic temperature change curve graph in a time period;
Wherein, ;AndIn order to adjust the coefficient of the power supply,To at the same timeThe pressure of the mold cavity at the time of the formation,To at the same timeThe pressure of the mold cavity at the time of the formation,To at the same timeThe temperature of the molten plastic at the time of the formation,To at the same timeThe temperature of the molten plastic at the time of the formation,Is thatTo the point ofA function of the pressure profile of the mold cavity over a period of time,Is thatTo the point ofA function of the temperature profile of the molten plastic over a period of time;
acquiring a standard temperature and pressure combination coefficient corresponding to an injection molding process of a historical standard mold and a standard injection speed of a final low-speed filling stage;
Comparing the standard temperature-pressure combination coefficient with the temperature-pressure combination coefficient, and if the standard temperature-pressure combination coefficient is different from the temperature-pressure combination coefficient, not comparing the injection speed Adjusting, using injection speedPerforming mold injection in the final low-speed filling stage, and if the same, performing injection speedAnd (3) adjusting, and performing mold injection in the final low-speed filling stage by using the standard injection speed in the final low-speed filling stage.
A mold injection molding speed control system comprising:
The data acquisition module is used for acquiring comprehensive data;
the data processing module is used for processing the comprehensive data to obtain comprehensive stable data;
The speed acquisition module is used for acquiring a mold injection stage according to the comprehensive stable data and acquiring an initial injection speed according to the mold injection stage;
the mould injection module is used for carrying out mould injection by adopting the initial injection speed, obtaining an injection speed adjusting factor according to comprehensive stable data, judging whether the initial injection speed is adjusted or not through the injection speed adjusting factor, and completing the mould injection according to a judging result.
The invention relates to a method and a system for controlling the injection molding speed of a mold, which have the technical effects and advantages that:
Acquiring comprehensive data, judging the comprehensive data through an outlier formula to acquire preliminary stable data and preliminary outlier data, acquiring abnormal values and normal values in the comprehensive data, stably processing the preliminary outlier data through a mapping formula to acquire the comprehensive stable data, removing and filling the abnormal values in the comprehensive data to enable the comprehensive data to be more accurate, acquiring a mold injection stage according to the comprehensive stable data, acquiring initial injection speed according to the mold injection stage, performing mold injection by adopting the initial injection speed, acquiring an injection speed adjusting factor according to the comprehensive stable data, judging whether to adjust the initial injection speed through the injection speed adjusting factor, finishing mold injection according to a judging result, and accurately adjusting the initial injection speed so that an injection product is complete and has no flaws;
The injection molding process of the mold comprises an initial rapid filling stage, a medium-term deceleration filling stage and a final low-speed filling stage, the injection speed is also switched in the switching process of the initial rapid filling stage, the medium-term deceleration filling stage and the final low-speed filling stage, the mold cavity pressure and the mold cavity speed can change in the switching process of the injection speed, the mold cavity pressure and the mold cavity speed change directly influence the injection speed, and the injection speed is adjusted according to the mold cavity pressure and the mold cavity speed change, so that the injection speed is accurately adjusted and controlled, the injected product is complete and has no defects, and the qualification rate of the injected product is further increased.
Drawings
FIG. 1 is a schematic diagram of a method for controlling injection molding speed of a mold according to the present invention;
fig. 2 is a schematic diagram of a system for controlling injection molding speed of a mold according to the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
Referring to fig. 1, a method for controlling injection molding speed of a mold according to the present embodiment includes:
S1, collecting comprehensive data, judging the comprehensive data through an outlier formula to obtain preliminary stable data and preliminary outlier data, and stably processing the preliminary outlier data through a mapping formula to obtain comprehensive stable data;
s2, obtaining a mold injection stage according to comprehensive stable data, and obtaining an initial injection speed according to the mold injection stage;
And S3, carrying out mold injection by adopting an initial injection speed, obtaining an injection speed adjusting factor according to comprehensive stable data, judging whether the initial injection speed is adjusted or not through the injection speed adjusting factor, and finishing the mold injection according to a judging result.
The process of collecting the integrated data comprises the following steps:
The comprehensive data comprise mold cavity data and injection molding data;
The mold cavity data comprise mold cavity pressure, volume and temperature of air in the mold cavity, and the injection molding data comprise temperature and melt index of molten plastics;
The method comprises the steps of obtaining pressure of a mold cavity through a pressure sensor, obtaining temperature of air in the mold cavity and temperature of molten plastic through a temperature sensor, obtaining total volume of the mold cavity through a CAD model, obtaining volume of the molten plastic injected into the mold cavity in real time, subtracting the volume of the molten plastic injected into the mold cavity from the total volume of the mold cavity, obtaining the volume of the air in the mold cavity, placing a plastic sample into a heating cylinder of a melt index instrument, applying pressure to the sample through a weight of G_1 kg in a molten state, enabling the plastic sample in the molten state to flow out through a small hole with the diameter of G_2 mm, measuring mass of the flowing plastic sample in G_3 time, and obtaining melt index of the molten plastic.
The method for obtaining the preliminary stable data and the preliminary outlier data by judging and processing the comprehensive data through the outlier formula comprises the following steps:
A1, acquiring a judging value of the die cavity data at each time point according to an outlier formula,
Then;
Wherein, As an index of the point in time,As the number of time points in time,Is the firstDie cavity data at various time points,Is the firstThe next time point of the time pointsThe data of the mold cavity at the location,Is the firstThe last time point of the time pointsThe data of the mold cavity at the location,Is the firstThe decision value of the outlier formula at each point in time,、、AndAre all adjusting coefficients;
Step A2, setting an outlier threshold When (when)When the die cavity data is abnormal, the die cavity data is recorded as preliminary outlier die cavity data, and the preliminary outlier die cavity data is stably processed by using a mapping formula;
When (when) When the mold cavity data is normal, the mold cavity data is recorded as preliminary stable mold cavity data;
step A3, repeating the steps A1 and A2 to process the injection molding data to obtain preliminary outlier injection molding data and preliminary stable injection molding data;
Step A4. Collecting Preliminary stationary mold cavity data and preliminary stationary injection molding data at various time points, obtaining preliminary stationary data, and collectingPreliminary outlier cavity data and preliminary outlier injection molding data at each time point, preliminary outlier data is obtained.
The method for obtaining comprehensive stable data comprises the following steps of:
Step B1, setting a mapping formula as follows:
;
Wherein, Is the firstMapping the cavity data at the various points in time,In order to take the intermediate values after the ascending order,Is the firstThe next time point of the time pointsThe data of the mold cavity at the location,Is the firstThe last time point of the time pointsMold cavity data at;
Step B2, using the mapping die cavity data to replace corresponding preliminary outlier die cavity data to form preliminary stable data, judging the preliminary stable data again through an outlier formula, eliminating the preliminary outlier die cavity data marked again at the time point, calculating a new data value by using a filling formula, filling the new data value into the corresponding time point, marking the new data value as the stable die cavity data at the time point, and marking the preliminary stable die cavity data as the stable die cavity data;
Filling the formula: ; Is the first Filling the data value output by the formula at each time point;
Step B3, repeating the steps B1 and B2 to process the preliminary outlier injection molding data and the preliminary stable injection molding data so as to obtain stable injection molding data;
step B4, collecting And (3) obtaining comprehensive stable data by stable die cavity data and stable injection molding data at each time point.
The method for obtaining the initial injection speed according to the injection stage of the mould comprises the following steps of:
Obtaining the volume of a die cavity Calculate the firstRatio of the volume of air in the mold cavity to the volume of the mold cavity at each point in time;
Wherein, ;Is the firstThe volume of air within the mold cavity at each point in time;
obtaining a mold injection stage according to the air volume ratio, wherein the mold injection stage comprises an initial rapid filling stage, a medium-term deceleration filling stage and a final low-speed filling stage;
setting an air volume ratio threshold range ;
Obtaining a mold injection stage according to a comparison result between the air volume ratio and the air volume ratio threshold range;
When (when) The injection molding stage of the mold is an initial rapid filling stage;
When (when) The injection molding stage of the mold is a medium-term deceleration filling stage;
When (when) The injection molding stage of the mold is the final low-speed filling stage;
When the injection stage of the mold is the initial rapid filling stage, the initial injection speed is set to be When the injection stage of the mold is the medium-term deceleration filling stage, the initial injection speed is set to beWhen the injection stage of the mold is the final low-speed filling stage, the initial injection speed is set to be;
Wherein, ;
It should be explained that during the initial rapid filling stage, a higher injection speed is used to perform the filling to shorten the molding cycle and reduce the material cooling phenomenon, during the middle deceleration filling stage, the mold cavity is already nearly saturated, the speed is reduced to reduce the flow resistance, and simultaneously, the backflow phenomenon of the molten plastic in the mold is prevented, so that the molten plastic stably fills the complex part of the mold cavity, the internal bubbles and uneven filling phenomenon are reduced, during the final low-speed filling stage, the injection speed is reduced to a lower level, the mold cavity is ensured to be stably filled under the condition of no severe flow, the flash caused by excessive stamping of the molten plastic is effectively prevented, and meanwhile, the damage to the mold caused by the excessive pressure in the mold cavity is avoided.
The method for performing the injection molding of the mold by adopting the initial injection speed, obtaining an injection speed adjusting factor according to comprehensive stable data, judging whether the initial injection speed is adjusted or not through the injection speed adjusting factor, and completing the injection molding of the mold according to a judging result comprises the following steps:
The injection speed adjusting factors comprise injection speed adjusting coefficients, pressure changing parameters, temperature changing parameters and temperature-pressure combined coefficients;
in the initial rapid filling stage, the temperature of the air in the mold cavity and the temperature of the molten plastic are compared, and if the temperature of the air in the mold cavity and the temperature of the molten plastic are the same, the initial injection speed is adopted Performing mold injection, heating the mold cavity if the temperature of air in the mold cavity is different from the temperature of the molten plastic until the temperature of air in the mold cavity is the same as the temperature of the molten plastic, and adopting an initial injection speedPerforming mold injection molding;
obtaining injection speed regulation coefficients according to mold cavity pressure, temperature and melt index of molten plastic ;
Wherein, ;、、、、、、、、AndAre all the adjustment factors, and are used for adjusting the adjustment factors,Is the firstThe pressure of the mold cavity at a point in time,Is the firstThe temperature of the molten plastic at each point in time,For the melt index of the molten plastic,Is the firstInjection speed adjustment coefficients at the respective time points;
Setting an injection speed adjustment coefficient threshold range ;
Judging whether to perform initial injection speed according to the comparison result between the injection speed adjusting coefficient and the threshold range of the injection speed adjusting coefficientAdjusting;
When (when) At the time of initial injection speedAdjusting, and performing mold injection at an initial rapid filling stage through the adjusted injection speed;
When (when) When not to the initial injection speedIs adjusted by the initial injection speedPerforming mold injection at an initial rapid filling stage;
When (when) At the time of initial injection speedAdjusting, and performing mold injection at an initial rapid filling stage through the adjusted injection speed;
When the injection speed adjustment coefficient is less than or equal to the minimum value in the threshold range of the injection speed adjustment coefficient, the injection speed is adjusted to the initial injection speed The adjusting process comprises the following steps:
Obtaining the normalization results of the mold cavity pressure, the temperature of the molten plastic and the melt index;
;;
; And Are all positive numbers,Is the firstNormalized results for the mold cavity pressure at each time point,Is the firstNormalization of the temperature of the molten plastic at each time point,Is the firstNormalization of the melt index of the molten plastic at each time point;
Normalized results based on mold cavity pressure, temperature of molten plastic, melt index, and initial injection speed Obtaining a tuning formula: the initial injection speed is adjusted by a widening formula Adjusting;
Wherein, For initial injection speedThe injection speed after the adjustment is carried out,For adjusting the coefficients;
When the injection speed adjustment coefficient is greater than or equal to the maximum value in the threshold range of the injection speed adjustment coefficient, the injection speed is adjusted to the initial injection speed The adjusting process comprises the following steps:
Normalized results based on mold cavity pressure, temperature of molten plastic, melt index, and initial injection speed Obtaining a reduction formula: The initial injection speed is adjusted by a small adjusting formula Adjusting;
Wherein, For initial injection speedThe injection speed after the adjustment is carried out,For adjusting the coefficients;
In the medium-term deceleration filling stage, the injection speed is regulated to be Acquiring injection speed and adjusting toStart time of (2)End time;
It should be noted that the injection speed was adjusted toThe start time of (2) is adjusted from the initial rapid filling stage toIs adjusted toThe end time of (2) is that the injection speed becomesTime of (2);
According to To the point ofObtaining pressure variation parameters from a pressure variation curve of a mold cavity and a temperature variation curve of molten plastic in a time periodAnd temperature variation parameter;
The method for acquiring the pressure change curve graph of the die cavity is to establish a blank coordinate systemSequentially filling time points into the abscissa of a blank coordinate system, setting the ordinate of the blank coordinate system as the mold cavity pressure, filling the mold cavity pressure corresponding to the time points into the blank coordinate system, and drawing a curve;
Wherein, ;Is thatTo the point ofA function of the pressure profile of the mold cavity over a period of time,Is thatTo the point ofA function of the temperature profile of the molten plastic over a period of time,Representing a time argument;
acquiring standard pressure change parameters, standard temperature change parameters and standard injection speed of a medium-term deceleration filling stage corresponding to an injection molding process of a historical standard mold;
it should be explained that if the product injected in the injection molding process of the history mold is a qualified product, namely a product which can be put into use, the injection molding process of the history mold is recorded as a standard injection molding process of the history mold;
Obtaining absolute values of the subtraction of the pressure change parameter and the standard pressure change parameter and absolute values of the subtraction of the temperature change parameter and the standard temperature change parameter, adding the two subtracted absolute values to obtain a difference coefficient, obtaining a history standard mold injection molding process corresponding to the smallest difference coefficient, and obtaining standard injection speed and injection speed of a medium-term deceleration filling stage corresponding to the history standard mold injection molding process Comparing;
If the comparison result is the same, the injection speed is not equal Is adjusted by the injection speedPerforming mold injection at the medium-term deceleration filling stage, and if the comparison results are different, performing injection at the injection speedAdjusting, and performing mold injection at the middle-stage deceleration filling stage through the standard injection speed at the middle-stage deceleration filling stage;
In the final low-speed filling stage, the injection speed is adjusted to Acquiring injection speed and adjusting toStart time of (2)End time;
According toTo the point ofObtaining temperature-pressure combination coefficient by using a die cavity pressure change curve graph and a molten plastic temperature change curve graph in a time period;
Wherein, ;AndIn order to adjust the coefficient of the power supply,To at the same timeThe pressure of the mold cavity at the time of the formation,To at the same timeThe pressure of the mold cavity at the time of the formation,To at the same timeThe temperature of the molten plastic at the time of the formation,To at the same timeThe temperature of the molten plastic at the time of the formation,Is thatTo the point ofA function of the pressure profile of the mold cavity over a period of time,Is thatTo the point ofA function of the temperature profile of the molten plastic over a period of time;
acquiring a standard temperature and pressure combination coefficient corresponding to an injection molding process of a historical standard mold and a standard injection speed of a final low-speed filling stage;
Comparing the standard temperature-pressure combination coefficient with the temperature-pressure combination coefficient, and if the standard temperature-pressure combination coefficient is different from the temperature-pressure combination coefficient, not comparing the injection speed Adjusting, using injection speedPerforming mold injection in the final low-speed filling stage, and if the same, performing injection speedAnd (3) adjusting, and performing mold injection in the final low-speed filling stage by using the standard injection speed in the final low-speed filling stage.
In this embodiment, the injection molding process of the mold includes an initial rapid filling stage, a middle-stage deceleration filling stage and a final low-speed filling stage, the injection speed is also switched during the switching process of the initial rapid filling stage, the middle-stage deceleration filling stage and the final low-speed filling stage, the mold cavity pressure and the mold cavity speed can change during the switching process of the injection speed, the change of the mold cavity pressure and the mold cavity speed directly affects the injection speed, and the injection speed is adjusted according to the change of the mold cavity pressure and the mold cavity speed, so that the injection speed is accurately adjusted and controlled, the injected product is complete and has no defects, and the qualification rate of the injected product is further increased.
Example 2
Referring to fig. 2, this embodiment, which is not described in detail in embodiment 1, provides a system for controlling injection molding speed of a mold, comprising:
The data acquisition module is used for acquiring comprehensive data;
the data processing module is used for processing the comprehensive data to obtain comprehensive stable data;
The speed acquisition module is used for acquiring a mold injection stage according to the comprehensive stable data and acquiring an initial injection speed according to the mold injection stage;
the mould injection module is used for carrying out mould injection by adopting the initial injection speed, obtaining an injection speed adjusting factor according to comprehensive stable data, judging whether the initial injection speed is adjusted or not through the injection speed adjusting factor, and completing the mould injection according to a judging result.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
In the several embodiments provided in the present invention, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely one, and there may be additional divisions in actual implementation, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other forms.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention.
Finally, the foregoing description of the preferred embodiment of the invention is provided for the purpose of illustration only, and is not intended to limit the invention to the particular form disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

Claims (9)

1.一种模具注塑成型速度控制方法，其特征在于，所述一种模具注塑成型速度控制方法包括：1. A mold injection molding speed control method, characterized in that the mold injection molding speed control method comprises: S1：采集综合数据，通过离群公式对综合数据进行判断处理获取初步平稳数据和初步离群数据，通过映射公式对初步离群数据进行平稳处理，获得综合平稳数据；S1: Collect comprehensive data, judge and process the comprehensive data through the outlier formula to obtain preliminary stable data and preliminary outlier data, and stabilize the preliminary outlier data through the mapping formula to obtain comprehensive stable data; S2：根据综合平稳数据获得模具注塑阶段，根据模具注塑阶段获得初始注射速度；S2: obtaining the mold injection stage according to the comprehensive stable data, and obtaining the initial injection speed according to the mold injection stage; S3：采用初始注射速度进行模具注塑，并根据综合平稳数据获得注射速度调节因子，通过注射速度调节因子判断是否对初始注射速度进行调整，根据判断结果完成模具注塑；S3: Use the initial injection speed to perform mold injection, and obtain the injection speed adjustment factor according to the comprehensive stable data, determine whether to adjust the initial injection speed according to the injection speed adjustment factor, and complete the mold injection according to the determination result; 所述综合数据包括模腔数据和注塑数据；The comprehensive data includes mold cavity data and injection molding data; 所述模腔数据包括模腔压力、模腔内空气的体积和温度；The mold cavity data includes mold cavity pressure, volume and temperature of air in the mold cavity; 所述注塑数据包括熔融塑料的温度和熔融指数。The injection molding data includes the temperature and melt index of the molten plastic. 2.根据权利要求1所述的一种模具注塑成型速度控制方法，其特征在于，所述通过离群公式对综合数据进行判断处理获取初步平稳数据和初步离群数据的方法包括：2. A method for controlling mold injection molding speed according to claim 1, characterized in that the method of obtaining preliminary stable data and preliminary outlier data by judging and processing the comprehensive data through the outlier formula comprises: 步骤A1：根据离群公式获取每一个时间点上模腔数据的判定值，Step A1: Obtain the judgment value of the cavity data at each time point according to the outlier formula. 则；but ; 其中，为时间点的索引，为时间点的数量，为第个时间点处的模腔数据、为第个时间点的下一个时间点处的模腔数据，为第个时间点的上一个时间点处的模腔数据，为第个时间点处离群公式的判定值，、、和均为调节系数；in, is the index of the time point, is the number of time points, For the Cavity data at a time point, For the The next time point Cavity data at For the The previous time point of a time point Cavity data at For the The judgment value of the outlier formula at the time point, , , and All are adjustment coefficients; 步骤A2：设置离群阈值，当时，则模腔数据异常，将此模腔数据记为初步离群模腔数据，使用映射公式对初步离群模腔数据进行平稳处理；Step A2: Setting the outlier threshold ,when When , the cavity data is abnormal, and the cavity data is recorded as preliminary outlier cavity data, and the preliminary outlier cavity data is processed smoothly using the mapping formula; 当时，则模腔数据正常，将此模腔数据记为初步平稳模腔数据；when When , the cavity data is normal, and this cavity data is recorded as the preliminary stable cavity data; 步骤A3：重复步骤A1和A2对注塑数据进行处理，获取初步离群注塑数据和初步平稳注塑数据；Step A3: Repeat steps A1 and A2 to process the injection molding data to obtain preliminary outlier injection molding data and preliminary stable injection molding data; 步骤A4：收集个时间点上的初步平稳模腔数据和初步平稳注塑数据，获得初步平稳数据，收集个时间点上的初步离群模腔数据和初步离群注塑数据，获得初步离群数据。Step A4: Collect Initial stable cavity data and initial stable injection data at a time point, obtain initial stable data, collect The preliminary outlier cavity data and the preliminary outlier injection data at a time point are used to obtain the preliminary outlier data. 3.根据权利要求2所述的一种模具注塑成型速度控制方法，其特征在于，所述通过映射公式对初步离群数据进行平稳处理，获得综合平稳数据的方法包括：3. A method for controlling mold injection molding speed according to claim 2, characterized in that the method of performing smooth processing on preliminary outlier data by mapping formula to obtain comprehensive smooth data comprises: 步骤B1：设定映射公式为：Step B1: Set the mapping formula as: ； ; 其中，为第个时间点处的映射模腔数据，为取升序排列后的中间值，为第个时间点的下下个时间点处的模腔数据，为第个时间点的上上个时间点处的模腔数据；in, For the The mapping cavity data at each time point, To take the middle value after ascending order, For the The next time point after the next time point Cavity data at For the The time point before the previous time point Cavity data at; 步骤B2：使用映射模腔数据替换对应的初步离群模腔数据形成初步平稳数据，通过离群公式对初步平稳数据进行再次判断，对时间点上再次标记为初步离群模腔数据的进行剔除，使用填充公式计算新的数据值，并填入到对应的时间点上，记为时间点上的平稳模腔数据，将初步平稳模腔数据记为平稳模腔数据；Step B2: Use the mapped cavity data to replace the corresponding preliminary outlier cavity data to form preliminary stable data, re-judge the preliminary stable data using the outlier formula, remove the preliminary outlier cavity data marked again at the time point, calculate the new data value using the filling formula, and fill it into the corresponding time point, record it as the stable cavity data at the time point, and record the preliminary stable cavity data as the stable cavity data; 填充公式：；为第个时间点处填充公式输出的数据值；Fill formula: ; For the Fill in the data value output by the formula at each time point; 步骤B3：重复步骤B1和B2对初步离群注塑数据和初步平稳注塑数据进行处理，获取平稳注塑数据；Step B3: Repeat steps B1 and B2 to process the preliminary outlier injection molding data and the preliminary stable injection molding data to obtain stable injection molding data; 步骤B4：收集个时间点上的平稳模腔数据和平稳注塑数据，获得综合平稳数据。Step B4: Collect The stable cavity data and stable injection data at each time point are combined to obtain comprehensive stable data. 4.根据权利要求3所述的一种模具注塑成型速度控制方法，其特征在于，所述根据综合平稳数据获得模具注塑阶段，根据模具注塑阶段获得初始注射速度的方法包括：4. A method for controlling mold injection molding speed according to claim 3, characterized in that the method of obtaining the mold injection stage according to the comprehensive stable data and obtaining the initial injection speed according to the mold injection stage comprises: 计算第个时间点处的模腔内空气的体积与模腔体积的比值，并设置占比阈值范围；Calculate the The ratio of the volume of air in the mold cavity to the volume of the mold cavity at a time point , and set the percentage threshold range ; 当时，模具注塑阶段为初期快速填充阶段，将初始注射速度设置为；when When the mold injection stage is the initial rapid filling stage, the initial injection speed is set to ; 当时，模具注塑阶段为中期减速填充阶段，将初始注射速度设置为；then The mold injection stage is the mid-term deceleration filling stage, and the initial injection speed is set to ; 当时，模具注塑阶段为最终低速填充阶段，将初始注射速度设置为。then The mold injection stage is the final low-speed filling stage, and the initial injection speed is set to . 5.根据权利要求4所述的一种模具注塑成型速度控制方法，其特征在于，所述采用初始注射速度进行模具注塑，并根据综合平稳数据获得注射速度调节因子，通过注射速度调节因子判断是否对初始注射速度进行调整，根据判断结果完成模具注塑的方法包括：5. A method for controlling mold injection molding speed according to claim 4, characterized in that the mold injection is performed using the initial injection speed, and the injection speed adjustment factor is obtained according to the comprehensive stable data, and the method for determining whether to adjust the initial injection speed according to the injection speed adjustment factor, and completing the mold injection according to the determination result comprises: 所述注射速度调节因子包括注射速度调节系数、压力变化参数、温度变化参数和温压联合系数；The injection speed adjustment factor includes an injection speed adjustment coefficient, a pressure change parameter, a temperature change parameter and a temperature-pressure combination coefficient; 步骤C1：在初期快速填充阶段，根据模腔压力、熔融塑料的温度和熔融指数获得注射速度调节系数，并设置注射速度调节系数阈值范围；Step C1: In the initial rapid filling stage, the injection speed adjustment coefficient is obtained according to the cavity pressure, the temperature of the molten plastic and the melt index, and the injection speed adjustment coefficient threshold range is set. ; 当或时，对初始注射速度进行调整，通过调整后的注射速度进行初期快速填充阶段的模具注塑；为第个时间点处的注射速度调节系数；when or When the initial injection speed Adjust the injection speed to perform mold injection in the initial rapid filling stage; For the Injection speed adjustment coefficient at each time point; 当时，不对初始注射速度进行调整，通过初始注射速度进行初期快速填充阶段的模具注塑；when When the initial injection speed is not Adjust the initial injection speed Perform mold injection during the initial rapid filling phase; 步骤C2：在中期减速填充阶段，将注射速度调节为获取注射速度调节为的开始时间以及结束时间；Step C2: During the mid-deceleration filling phase, adjust the injection speed to Get the injection speed adjustment to Start time and end time ; 根据到时间段内的模腔压力变化曲线图和熔融塑料温度变化曲线图判断是否对注射速度进行调整，根据判断结果完成中期减速填充阶段的模具注塑；according to arrive The cavity pressure change curve and molten plastic temperature change curve within a time period are used to determine whether the injection speed is Make adjustments and complete mold injection molding in the mid-term deceleration filling stage based on the judgment results; 其中，模腔压力变化曲线图的获取方法为建立空白坐标系，将n个时间点依次填入到空白坐标系的横坐标，将空白坐标系的纵坐标设置为模腔压力，且将时间点对应的模腔压力填入空白坐标系中，绘制曲线；熔融塑料温度变化曲线图的获取方法与模腔压力变化曲线图相同，且纵坐标设置为熔融塑料的温度；Among them, the method for obtaining the mold cavity pressure change curve is to establish a blank coordinate system, fill n time points into the abscissa of the blank coordinate system in sequence, set the ordinate of the blank coordinate system to the mold cavity pressure, and fill the mold cavity pressure corresponding to the time point into the blank coordinate system to draw a curve; the method for obtaining the molten plastic temperature change curve is the same as the mold cavity pressure change curve, and the ordinate is set to the temperature of the molten plastic; 步骤C3：在最终低速填充阶段，将注射速度调节为，获取注射速度调节为的开始时间以及结束时间；Step C3: In the final low-speed filling stage, adjust the injection speed to , get the injection speed adjustment to Start time and end time ; 根据到时间段内的模腔压力变化曲线图和熔融塑料温度变化曲线图判断是否对注射速度进行调整，根据判断结果完成最终低速填充阶段的模具注塑。according to arrive The cavity pressure change curve and molten plastic temperature change curve within a time period are used to determine whether the injection speed is Adjustments are made and, based on the judgment results, the mold injection in the final low-speed filling stage is completed. 6.根据权利要求5所述的一种模具注塑成型速度控制方法，其特征在于，所述对初始注射速度进行调整的方法包括：6. A method for controlling the speed of mold injection molding according to claim 5, characterized in that the initial injection speed Ways to make adjustments include: 当时，获取模腔压力、熔融塑料的温度和熔融指数的归一化结果，根据模腔压力、熔融塑料的温度、熔融指数的归一化结果和初始注射速度获得调大公式：；通过调大公式对初始注射速度进行调整；when When the mold cavity pressure, the temperature of the molten plastic and the normalized results of the melt index are obtained, the mold cavity pressure, the temperature of the molten plastic, the normalized results of the melt index and the initial injection speed are obtained. Get the enlargement formula: ; By increasing the initial injection speed Make adjustments; 当时，根据模腔压力、熔融塑料的温度、熔融指数的归一化结果和初始注射速度获得调小公式：；通过调小公式对初始注射速度进行调整；when When the mold cavity pressure, the temperature of the molten plastic, the normalized result of the melt index and the initial injection speed are Get the reduction formula: ; By reducing the initial injection speed Make adjustments; 其中，为初始注射速度调整后的注射速度，为第个时间点处模腔压力的归一化结果，为第个时间点处熔融塑料的温度的归一化结果，为第个时间点处熔融塑料的熔融指数的归一化结果，为调整系数，为初始注射速度调整后的注射速度，为调整系数。in, is the initial injection speed Adjusted injection speed, For the The normalized result of the cavity pressure at a time point is: For the The normalized result of the temperature of the molten plastic at a time point, For the The normalized result of the melt index of the molten plastic at a time point, is the adjustment factor, is the initial injection speed Adjusted injection speed, is the adjustment factor. 7.根据权利要求6所述的一种模具注塑成型速度控制方法，其特征在于，所述根据到时间段内的模腔压力变化曲线图和熔融塑料温度变化曲线图判断是否对注射速度进行调整的方法包括：7. A method for controlling mold injection molding speed according to claim 6, characterized in that arrive The cavity pressure change curve and molten plastic temperature change curve within a time period are used to determine whether the injection speed is Ways to make adjustments include: 根据到时间段内的模腔压力变化曲线图和熔融塑料温度变化曲线图获得压力变化参数和温度变化参数；according to arrive The cavity pressure change curve and molten plastic temperature change curve within the time period are used to obtain the pressure change parameters. and temperature variation parameters ; 其中，；；为到时间段内的模腔压力变化曲线函数，为到时间段内的熔融塑料温度变化曲线函数，表示时间自变量；in, ; ; for arrive Cavity pressure change curve function within a time period, for arrive The temperature variation curve function of the molten plastic within a time period, represents the time independent variable; 获取历史标准模具注塑过程对应的标准压力变化参数、标准温度变化参数以及中期减速填充阶段的标准注射速度；Obtain standard pressure change parameters, standard temperature change parameters and standard injection speed of the mid-term deceleration filling stage corresponding to the historical standard mold injection process; 获取压力变化参数与标准压力变化参数相减的绝对值以及温度变化参数与标准温度变化参数相减的绝对值，将两个相减的绝对值相加，获得差异系数，获取最小的差异系数对应的历史标准模具注塑过程，将此历史标准模具注塑过程对应的中期减速填充阶段的标准注射速度与注射速度进行比较；Obtain the absolute value of the pressure change parameter subtracted from the standard pressure change parameter and the absolute value of the temperature change parameter subtracted from the standard temperature change parameter, add the two subtracted absolute values to obtain the difference coefficient, obtain the historical standard mold injection molding process corresponding to the minimum difference coefficient, and compare the standard injection speed and injection speed of the mid-term deceleration filling stage corresponding to this historical standard mold injection molding process. Make comparisons; 若比较结果相同，则不对注射速度进行调整，通过注射速度进行中期减速填充阶段的模具注塑，若比较结果不相同，则对注射速度进行调整，通过中期减速填充阶段的标准注射速度进行中期减速填充阶段的模具注塑。If the comparison results are the same, the injection speed is not adjusted. Adjust the injection speed Perform mold injection during the mid-term deceleration filling phase. If the comparison results are different, adjust the injection speed. Adjustments are made to perform mold injection during the mid-term deceleration filling phase using the standard injection speed during the mid-term deceleration filling phase. 8.根据权利要求7所述的一种模具注塑成型速度控制方法，其特征在于，所述根据到时间段内的模腔压力变化曲线图和熔融塑料温度变化曲线图判断是否对注射速度进行调整的方法包括：8. A method for controlling mold injection molding speed according to claim 7, characterized in that arrive The cavity pressure change curve and molten plastic temperature change curve within a time period are used to determine whether the injection speed is Ways to make adjustments include: 根据到时间段内的模腔压力变化曲线图和熔融塑料温度变化曲线图获得温压联合系数；according to arrive The cavity pressure change curve and molten plastic temperature change curve within the time period are used to obtain the temperature-pressure combined coefficient ; 其中，；和为调节系数，为在时的模腔压力，为在时的模腔压力，为在时的熔融塑料温度，为在时的熔融塑料温度，为到时间段内的模腔压力变化曲线函数，为到时间段内的熔融塑料温度变化曲线函数；in, ; and is the adjustment coefficient, For The cavity pressure at For The cavity pressure at For The molten plastic temperature at For The molten plastic temperature at for arrive Cavity pressure change curve function within a time period, for arrive The temperature variation curve function of the molten plastic within a time period; 获取历史标准模具注塑过程对应的标准温压联合系数和最终低速填充阶段的标准注射速度；Obtain the standard temperature-pressure combination coefficient corresponding to the historical standard mold injection process and the standard injection speed in the final low-speed filling stage; 将标准温压联合系数与温压联合系数进行比对，若不相同，则不对注射速度进行调整，使用注射速度进行最终低速填充阶段的模具注塑，若相同，则对注射速度进行调整，使用最终低速填充阶段的标准注射速度进行最终低速填充阶段的模具注塑。Compare the standard temperature-pressure combination coefficient with the temperature-pressure combination coefficient. If they are different, the injection speed will not be adjusted. Make adjustments using injection speed Perform the final low-speed filling stage of mold injection. If the injection speed is the same, Adjustments were made to use the standard injection speed for the final slow-speed filling phase to inject the mold during the final slow-speed filling phase. 9.一种模具注塑成型速度控制系统，其用于实现权利要求1至8任一项所述的一种模具注塑成型速度控制方法，其特征在于，包括：9. A mold injection molding speed control system, which is used to implement a mold injection molding speed control method according to any one of claims 1 to 8, characterized in that it comprises: 数据采集模块，用于采集综合数据；A data acquisition module, used to collect comprehensive data; 数据处理模块，用于对综合数据进行处理，获得综合平稳数据；A data processing module is used to process the comprehensive data to obtain comprehensive stable data; 速度获取模块，用于根据综合平稳数据获得模具注塑阶段，根据模具注塑阶段获得初始注射速度；A speed acquisition module is used to obtain the mold injection stage according to the comprehensive stable data, and obtain the initial injection speed according to the mold injection stage; 模具注塑模块，用于采用初始注射速度进行模具注塑，并根据综合平稳数据获得注射速度调节因子，通过注射速度调节因子判断是否对初始注射速度进行调整，根据判断结果完成模具注塑。The mold injection molding module is used to perform mold injection molding using an initial injection speed, and obtain an injection speed adjustment factor based on comprehensive stable data, determine whether to adjust the initial injection speed through the injection speed adjustment factor, and complete mold injection molding based on the determination result.
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