CN104772879A - Micro injection molding melt flow behavior visualized analysis detection system and method - Google Patents
Micro injection molding melt flow behavior visualized analysis detection system and method Download PDFInfo
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- CN104772879A CN104772879A CN201510159813.XA CN201510159813A CN104772879A CN 104772879 A CN104772879 A CN 104772879A CN 201510159813 A CN201510159813 A CN 201510159813A CN 104772879 A CN104772879 A CN 104772879A
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- analysis
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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
-
- 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
- B29C2945/76003—Measured parameter
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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 discloses a micro injection molding melt flow behavior visualized analysis detection system and a micro injection molding melt flow behavior visualized analysis detection method. The analysis detection system comprises a visualized die, a high-speed camera, a tracer particle tracker, a temperature sensor, a pressure sensor and a computer analysis system and is characterized in that tracer particles are added in a plastic melt, and under the condition that the tracer particles are irradiated by the external specific light source, the high-speed camera and the tracer particle tracker can obtain the filling behavior of the melt in a cavity and the trails of the tracer particles through a window designed in a visualized mold, and the temperature sensor and the pressure sensor are mounted in the cavity of the visualized mold to collect and obtain temperature and pressure data in the cavity, a middle amplifier transmits the data to the computer analysis system for analysis and comparing in a real-time manner, the flowing behavior of the melt in the mold cavity is detected, and optimized technological parameters can be obtained.
Description
Technical field
The present invention relates to micro injection molding technical field, especially relate to a kind of micro injection molding melt flow behavior visual analyzing detection system and method.
Background technology
Complex-shaped, the accurate in size goods of injection mo(u)lding energy one-shot forming, are a kind of high efficiency, the mode of production low-costly and in high volume, have developed into the topmost processing method of macromolecular material.
Injection mo(u)lding processing is a complicated subject, a large amount of scholar utilizes mathematical method to carry out the research of correlation theory for a long time, achieve abundant academy's successes, visualization technique becomes because it can reflect the dynamic stowing operation of plastic melt strictly according to the facts the important means studying polymer material molding technology, method for visualizing is finding some the unknown phenomenon in forming process, disclose the aspects such as the production process of forming defect and have irreplaceable effect, be subject to the great attention of academia in recent years.
Carrying out visual inspection to micro injection molding is a kind of approach understanding melt flow behavior, but because cavity dimension is small, only shoot with video-corder the image recognition precision of melt by video camera lower, effect is poor, also be only the reproduction on image simultaneously, can not obtain accurately data to carry out quantitative analysis, the present invention is based on visible mold, the method that the data obtained by high-speed camera, trace particle tracker, temperature sensor, pressure sensor carry out melt flow behavior detection yet there are no relevant report.
Summary of the invention
The object of the invention is to provide a kind of micro injection molding melt flow behavior visual analyzing detection system and method, pass through visible mold, utilize the data acquisition technology of sensor technology and trace particle, the analysis of plastic melt filling flow behavior is carried out, for process parameter optimizing provides reliable foundation based on the data gathered.
For achieving the above object, the present invention takes following technical proposals:
Micro injection molding melt flow behavior visual analyzing detection system of the present invention and method, described analysis detection system comprises visible mold, high-speed camera, trace particle tracker, temperature sensor and pressure sensor, Computerized analysis system, it is characterized in that: high-speed camera and trace particle tracker obtain the filling behavior of melt and the track of trace particle in die cavity by form designed on visible mold, temperature sensor and pressure sensor can gather the temperature and pressure data obtained in die cavity, detect the flow behavior of melt in mold cavity, and real-time data transmission is carried out analysis contrast to Computerized analysis system, obtain optimized technological parameter, visual analyzing detection system and method comprise following ins and outs:
One, on microinjection mold, design visual form, the form place of visible mold arranges high-speed camera and trace particle tracker;
Two, the imaging object of high-speed camera and trace particle tracker is the die cavity of visible mold, can obtain the information in die cavity through form, and the data energy real-time Transmission that the camera data of high-speed camera and trace particle tracker gather is to computer;
Three, temperature sensor and pressure sensor are installed in die cavity; The data that temperature sensor and pressure sensor collect through intermediate amplifier real-time Transmission to computer;
Four, in plastic melt, be added with trace particle, this trace particle can clearly by high-speed camera and trace particle tracker recording track cloud under the irradiation of outside specific light source;
Five, open computer and high-speed camera, start Micro Injection Molding Machines, in die cavity, inject the plastic melt with trace particle, temperature sensor, pressure sensor, high-speed camera and trace particle tracker transfer data to computer terminal;
Six, the data obtained are analyzed by self-editing software systems by computer, computer analysis results and theoretical analysis result are compared, the flow behavior of research melt, and analysis design mothod parameter is on the impact of result;
Seven, by experimental analysis adjustment repeatedly, obtain optimized technological parameter, and then obtain the goods of best in quality.
The invention has the advantages that the accuracy of identification overcoming previous methods is lower, image effect is confined to mould and product size, and can not based on shortcomings such as real-time data analysis, the analysis of the problem such as filling behavior and flow equilibrium of melt can be realized by the keyframe playback of high-speed camera machine data, melt flows state can be analyzed by the track cloud of trace particle and be subject to the melt flow behavior under shear action, obtain the 3D velocity field and shearing field that quantize, and based on the temperature in mold cavity, the real time data of pressure and trace particle track can analyze the transient flow zone behavior in melt filling process.
Accompanying drawing explanation
Fig. 1 is visual analyzing detection system of the present invention and method structural representation;
Fig. 2 is visual analyzing detection system of the present invention and method and technology conceptual scheme.
The micro-injection moulding visible mold of Reference numeral: 1-; 2-injection flow passage; The visual form of 3-; 4-reflecting prism; 5-trace particle; 6-quartz glass; 7-light source irradiation hole; 8-mold parting surface; 9-die cavity; 10-temperature sensor; 11-pressure sensor; 12-high-speed camera; 13-intermediate amplifier; 14-computer; 15-trace particle tracker.
Detailed description of the invention
As depicted in figs. 1 and 2, micro injection molding melt flow behavior visual analyzing detection system of the present invention and method, described analysis detection system comprises visible mold, high-speed camera, trace particle tracker, temperature sensor and pressure sensor, Computerized analysis system etc., it is characterized in that: high-speed camera and trace particle tracker can obtain the filling behavior of melt and the track of trace particle in die cavity by the form that visible mold designs, temperature sensor and pressure sensor can gather the temperature and pressure data obtained in die cavity, detect the flow behavior of melt in mold cavity, and transfer data to Computerized analysis system carry out analysis contrast, obtain optimized technological parameter, detailed description of the invention is as follows:
One, on micro-injection moulding visible mold 1, design visual form 3, the information in die cavity can be obtained at form place by high-speed camera 12 or trace particle tracker 15;
Two, high-speed camera 12 and trace particle tracker 15 are set at die cavity 9 observation port 3 place of visible mold 1; The light path terminal of described high-speed camera 12, trace particle tracker 15 is the die cavity 9 of visible mold 1, and namely the light path of high-speed camera 12 and trace particle tracker 15 is: observation port 3 → reflecting prism 4 → quartz glass 6 → die cavity 9; Described high-speed camera 12 is connected with the signal input part of computer 14 with the signal output part of trace particle tracker 15;
Three, temperature sensor 10 pressure sensor 11 is installed in mould 1; The data that described temperature sensor 10 pressure sensor 11 collects respectively through intermediate amplifier 13 real-time Transmission to computer 14;
Four, be added with trace particle 5 in the plastic melt in the injection flow passage 2 of mould 1, trace particle 5 clearly can be recorded its track cloud by high-speed camera 12 and trace particle tracker 15 under the irradiation of outside specific light source by light source irradiation hole 7;
Five, open computer 14, high-speed camera 12, start Micro Injection Molding Machines, in visible mold 1, inject the plastic melt with trace particle 5, arrive die cavity 9 through injection flow passage 2; Product molding overall process in die cavity 9 is recorded and is transferred to computer 14 by high-speed camera 12 in real time; The trace image of trace particle 5 is transferred to computer 14 by trace particle tracker 15 in real time; Temperature sensor 10 and pressure sensor 11 by the real-time data transmission that captures to computer 14;
Six, the data obtained are analyzed by self-programmed software system by computer 14, are carried out the analysis of filling cutting performance, the analysis in 3D velocity field and shearing field by the trace particle track cloud collected; Data in conjunction with temperature sensor and pressure sensor carry out the analysis of temperature field, pressure field, shearing field and stress field; The analysis of the analysis of melt dynamic flow process, the analysis of flow equilibrium and melt flows forward position shape is carried out by keyframe playback; Analysis result and theoretical analysis result are compared simultaneously, research melt flow behavior, analysis design mothod parameter is on the impact of result;
Seven, repeat step 3, four, five, by experimental analysis adjustment repeatedly, thus obtain optimized technological parameter, and then obtain the goods of best in quality.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. a micro injection molding melt flow behavior visual analyzing detection system and method, described analysis detection system comprises visible mold, high-speed camera, trace particle tracker, temperature sensor and pressure sensor, Computerized analysis system, it is characterized in that: high-speed camera and trace particle tracker obtain the filling behavior of melt and the track of trace particle in die cavity by the form that visible mold designs, described temperature sensor and pressure sensor are arranged in the die cavity of visible mold, the temperature and pressure data obtained in die cavity can be gathered, transfer data to Computerized analysis system in real time through intermediate amplifier and carry out analysis contrast, detect the flow behavior of melt in mold cavity, obtain optimized technological parameter.
2. a kind of micro injection molding melt flow behavior visual analyzing detection system according to claim 1 and method, in plastic melt, be added with trace particle, this trace particle can clearly by described high-speed camera and trace particle tracker recording track cloud under the irradiation of outside specific light source.
3. a kind of micro injection molding melt flow behavior visual analyzing detection system according to claim 1 and method, described Computerized analysis system is analyzed the data obtained by self-programmed software system, computer analysis results and theoretical analysis result are compared, the flow behavior of research melt, analysis design mothod parameter is on the impact of result, by experimental analysis adjustment repeatedly, thus obtain optimized technological parameter, and then obtain the goods of best in quality.
4. Computerized analysis system according to claim 3, self-programmed software system wherein can realize the analysis of trace particle track cloud, temperature field, pressure field, velocity field, shearing field, stress field, melt dynamic flow process, flow equilibrium and melt flows forward position shape.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510159813.XA CN104772879A (en) | 2015-04-07 | 2015-04-07 | Micro injection molding melt flow behavior visualized analysis detection system and method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111452305A (en) * | 2020-05-29 | 2020-07-28 | 江苏华海诚科新材料股份有限公司 | Large-particle testing mold for epoxy molding compound and testing method thereof |
| CN112986312A (en) * | 2021-02-05 | 2021-06-18 | 郑州大学 | Method for measuring thermal stress of injection molding product by using two-dimensional digital image technology |
| CN113188950A (en) * | 2021-04-01 | 2021-07-30 | 中钢集团鞍山热能研究院有限公司 | Tracer chain detection method and device for tracking flow track and speed of bulk material |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111452305A (en) * | 2020-05-29 | 2020-07-28 | 江苏华海诚科新材料股份有限公司 | Large-particle testing mold for epoxy molding compound and testing method thereof |
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| CN112986312B (en) * | 2021-02-05 | 2023-02-03 | 郑州大学 | Method for measuring thermal stress of injection molding product by using two-dimensional digital image technology |
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