CN110355967A - A kind of synchronous injection molding machine pressure stationarity control method - Google Patents
A kind of synchronous injection molding machine pressure stationarity control method Download PDFInfo
- Publication number
- CN110355967A CN110355967A CN201910644280.2A CN201910644280A CN110355967A CN 110355967 A CN110355967 A CN 110355967A CN 201910644280 A CN201910644280 A CN 201910644280A CN 110355967 A CN110355967 A CN 110355967A
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- CN
- China
- Prior art keywords
- pressure
- injection molding
- molding machine
- given
- synchronous injection
- 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.)
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Classifications
-
- 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
-
- 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
- B29C2045/7606—Controlling or regulating the display unit
Abstract
The invention discloses a kind of synchronous injection molding machine pressure stationarity control methods, comprising the following steps: by prime given pressure F1, given flow Q1 and actual feedback pressure F2 adjust actual flow Q2 using PI；When actual pressure F2 is close does not reach given pressure F1, pi regulator is emptied, and present flow rate value Q2 is assigned to pi regulator, as new integrated value；Restart PI operation, and reaches given pressure F1 with finally allowing synchronous injection molding machine fast and stable.The control method that the present invention is implemented has handled synchronous injection molding machine under the techniques such as pressure maintaining, injection molding well, plays the contradiction between pressure speed and pressure toning, allows system under the premise of basic no pressure toning, reach to fast and stable prime given pressure.
Description
Technical field
The present invention relates to injection molding machine Pressure Control Technology field, specially a kind of synchronous injection molding machine pressure stationarity controlling party
Method.
Background technique
Injection molding machine is that macromolecule raw material are heated to the temperature that production needs by the charging basket of injection molding machine, becomes to melt
Then state would be heated to the polymeric fluid of molten state, the processing equipment being cooled and shaped by screw of injection into mold.Injection molding
Using high molecular material, mold, the quality that injecting products are directly controlled for the use of injection machine and Shooting Technique four.It is infusing
The high molecular material of modeling, mold and Shooting Technique it is certain in the case where, the quality of injecting products is directly by the technique of injection machine
State modulator precision determines.The most important process conditions of injection molding be influence plasticizing flowing and cooling temperature, injection precision,
Pressure and flow control etc..
Injection and pressure maintaining period are the critical process of straight forming product, and the precision for corresponding to the control of technological parameter is direct
It is related to the quality of product.When macromolecule passed through the injection material that pre-plastic process is transmitted to injection molding machine from injecting machine material tube originally
Cylinder, and it is heated to the temperature of setting, molten state is formed, is then filled according to the injection screw that the Hydraulic Velocity of setting is rotated
Into the die cavity of closure, which becomes injection process.After the macromolecule raw material that the die cavity of closure is melted state is filled with, note
It penetrates screw rod and continues to keep certain pressure to carry out contraction of supplement macromolecule raw material during cooling and shaping and form arcuate shape
The product of size, the process become pressure maintaining period, can not reach between pressure speed and pressure toning rising under existing process conditions
To balance, can not fast and stable reach prime given pressure, be easy to appear high velocity, low pressure and low speed heavy pressure, result in short
Penetrate, current mark, peeling, water wave, mattness, cavity the defects of, seriously affect the quality of injection moulded products.
Summary of the invention
The purpose of the present invention is to provide a kind of synchronous injection molding machine pressure stationarity control methods, to solve above-mentioned background skill
The problem of being proposed in art.
To achieve the above object, the invention provides the following technical scheme:
A kind of synchronous injection molding machine pressure stationarity control method, comprising the following steps:
S1: by prime given pressure F1, given flow Q1 and actual feedback pressure F2 adjust actual flow using PI
Q2；
S2: when actual pressure F2 is not close to when reaching given pressure F1, emptying pi regulator, and by present flow rate value Q2
It is assigned to pi regulator, as new integrated value；
S3: restarting PI operation, and reaches given pressure F1 with finally allowing synchronous injection molding machine fast and stable.
Compared with prior art, the beneficial effects of the present invention are:
The control method that the present invention is implemented has handled synchronous injection molding machine under the techniques such as pressure maintaining, injection molding well, plays pressure speed
Contradiction between degree and pressure toning, allows system under the premise of basic no pressure toning, and it is given to reach to fast and stable prime
Pressure.
Detailed description of the invention
Fig. 1 is structure control block diagram of the invention；
Fig. 2 is flow chart of the invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The present invention provides a kind of technical solution referring to FIG. 1-2:
A kind of synchronous injection molding machine pressure stationarity control method, comprising the following steps:
S1: by prime given pressure F1, given flow Q1 and actual feedback pressure F2 adjust actual flow using PI
Q2；
S2: when actual pressure F2 is not close to when reaching given pressure F1, emptying pi regulator, and by present flow rate value Q2
It is assigned to pi regulator, as new integrated value；
S3: restarting PI operation, and reaches given pressure F1 with finally allowing synchronous injection molding machine fast and stable.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (1)
1. a kind of synchronous injection molding machine pressure stationarity control method, it is characterised in that: the following steps are included:
S1: by prime given pressure F1, given flow Q1 and actual feedback pressure F2 adjust actual flow Q2 using PI；
S2: when actual pressure F2 is close does not reach given pressure F1, pi regulator is emptied, and present flow rate value Q2 is assigned to
Pi regulator, as new integrated value；
S3: restarting PI operation, and reaches given pressure F1 with finally allowing synchronous injection molding machine fast and stable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910644280.2A CN110355967A (en) | 2019-07-17 | 2019-07-17 | A kind of synchronous injection molding machine pressure stationarity control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910644280.2A CN110355967A (en) | 2019-07-17 | 2019-07-17 | A kind of synchronous injection molding machine pressure stationarity control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110355967A true CN110355967A (en) | 2019-10-22 |
Family
ID=68220132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910644280.2A Pending CN110355967A (en) | 2019-07-17 | 2019-07-17 | A kind of synchronous injection molding machine pressure stationarity control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110355967A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101612783A (en) * | 2009-06-25 | 2009-12-30 | 无锡威锐科智能测控技术有限公司 | Method for controlling mold cavity resin pressure of injection molding machine |
-
2019
- 2019-07-17 CN CN201910644280.2A patent/CN110355967A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101612783A (en) * | 2009-06-25 | 2009-12-30 | 无锡威锐科智能测控技术有限公司 | Method for controlling mold cavity resin pressure of injection molding machine |
Non-Patent Citations (1)
| Title |
|---|
| 王中涛: "《炼油仪表及自动化 试用本》", 31 March 1986, 烃加工出版社 * |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191022 |
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| RJ01 | Rejection of invention patent application after publication |