CN102107501A - Machining method for preventing exhaust piece die of printer from deforming - Google Patents
Machining method for preventing exhaust piece die of printer from deforming Download PDFInfo
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- CN102107501A CN102107501A CN2010105488615A CN201010548861A CN102107501A CN 102107501 A CN102107501 A CN 102107501A CN 2010105488615 A CN2010105488615 A CN 2010105488615A CN 201010548861 A CN201010548861 A CN 201010548861A CN 102107501 A CN102107501 A CN 102107501A
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Abstract
The invention relates to a machining method for preventing an exhaust piece die of a printer from deforming, which comprises the following steps of: (1) performing a glue injection mode of a two-point pin-point gate on two outer sides in the middle of a product according to a moldflow analytical result, so that glue stocks are injected uniformly from the middle to both sides to reduce internal stress generated after the mold stripping of the product and prevent the product from deforming; (2) forming by adopting a Japan steel forming machine of 280 tons under the forming pressure of 85, injecting glue at the glue injection speed of 70 for 4 seconds, maintaining the pressure under the pressure of 25 (a first section) and 25 (a second section) for 1 second, and baking materials at the temperature of 75 DEG C for 2 seconds so as to ensure the normal state of the product before mold stripping; and (3) adopting two groups of in-series cooling systems in front and rear dies respectively, setting the constant temperature of the front and rear dies to be 25 DEG C, and cooling for 25 seconds to ensure that the product does not deform after the mold stripping. By the machining method, all products with the glue thickness of 1.5 millimeters in four openings are uniform and do not deform, the manufacturing period of the die is short, namely the qualified time of the die is 40 days, and the product in each opening is not selected artificially during volume production, so the full-automation production is realized.
Description
Technical field
The present invention relates to a kind of printer exhaust part injection mold and prevent the processing method of being out of shape.
Background technology
Cause the product distortion except the odjective cause of unreasonable products structure, also have following three aspect subjective reasons: at first, aspect injection machine, have in the moulding that too much internal stress, mould filling speed are slow, plastics deficiency in the die cavity, plastics temperature are too low or inconsistent, moulding is ejecting Shi Taire etc.These factors generally can be adjusted out by die trial.Secondly, aspect mould, the mold cools down ability is not enough, the Position Design of cooling pipe imbalance, cast gate is improper in the mould, the feed system size is too little, the skew of core rod or move the variation that causes the moulding wall thickness etc.These factors can overcome by the appropriate design of mould structure, but this is technological difficulties, especially the setting of mold cooling system.At last, aspect plastics, crystalline material is than amorphism material easy deformation.In addition, can't improve by various measures under the situation of distortion, have only to make and detect tool rectification distortion.
Because the glue position of this printer exhaust part thin (1.5mm), the centre is empty, this product easy deformation during moulding, thus influence four pillars and the size that is associated thereof, therefore solve the key technology that problem on deformation becomes this product.If single cave product, then the die deformation problem solves easily; If many caves product, then the die deformation problem is difficult to solve.Draw two kinds of preferable countermeasures by various trials: prolong cool time and can improve distortion rapidly, but prolonged molding cycle, so this measure is not best selection; Improve fortune water layout, mould temperature before and after adjusting, and guarantee only in this way just can fundamentally solve problem on deformation suitable cool time, but the difficulty of improving is big, not only need before the mould design, carry out sufficient mold flow analysis to determine best fortune water layout, and when mould studies, need select best front and back mould temperature, and studying often, the Mold Making time is long, needed for three wheat harvesting period times, make Mold Making cost height.Therefore, before the mould design, carry out abundant mold flow analysis, select best fortune water layout and front and back temperature, this Mold Making cycle was finished at 40 days.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of thick product of all 1.5mm glue of four caves (157.11mm * 154.21mm * 75.7mm) evenly indeformable that guarantees, mould was qualified in 40 days, shorten the Mold Making cycle, need not during production manually to sort, realize automated production, enhance productivity, the printer exhaust part mould that reduces unit cost prevents the processing method of being out of shape.
In order to solve the problems of the technologies described above, the printer exhaust part mould that the present invention proposes prevents that the special character of the processing method of being out of shape is:
1, by the mold flow analysis result, the glue mode is advanced at implementation 2 thin mouths of a river in two outsides in the middle of product, makes sizing material evenly advance glue from the centre to both sides, and the internal stress after the depanning of reduction product is avoided the product distortion;
2, adopt 280 tons day the steel make-up machine, briquetting pressure is 85, injection speed is 70, the injection time is 4 seconds, pressurize be (one) 25, (two) 25, the dwell time is 1 second, baking material temperature is 75 ℃, the baking material time is 2 seconds, guarantees the normal condition that the product depanning is preceding;
3, the front and back mould adopts two groups of series connection fortune water respectively, and the front and back mould is provided with 25 ℃ of normal temperature, and be 25 seconds cool time, guarantees that product is indeformable after depanning.
The present invention compares with conventional art and has the following advantages: guarantee the thick product of all 1.5mm glue of four caves (157.11mm * 154.21mm * 75.7mm) evenly indeformable, mould was qualified in 40 days, the Mold Making cycle is short, every cave product need not manually to sort during volume production, realize full-automatic production, reach every month 22.63 ten thousand output of single mold, improved production efficiency.
Description of drawings
Fig. 1 is a product positive and negative structural representation of the present invention.
Fig. 2 is front and back of the present invention mould fortune water-bound schematic diagrames.
The specific embodiment
Below in conjunction with embodiment the present invention is further described:
Consult shown in the figure, described printer exhaust part mould prevents that the special character of the processing method of being out of shape is:
1, by the mold flow analysis result, the glue mode is advanced at implementation 1,2 two thin mouths of a river in two outsides in the middle of product, makes sizing material evenly advance glue from the centre to both sides, and the internal stress after the depanning of reduction product is avoided the product distortion;
2, adopt 280 tons day the steel make-up machine, briquetting pressure is 85, injection speed is 70, the injection time is 4 seconds, pressurize be (one) 25, (two) 25, the dwell time is 1 second, baking material temperature is 75 ℃, the baking material time is 2 seconds, guarantees the normal condition that the product depanning is preceding;
3, the front and back mould adopts two groups of series connection fortune water 3,4 respectively, and the front and back mould is provided with 25 ℃ of normal temperature, and be 25 seconds cool time, guarantees that product is indeformable after depanning.
The molding technique parameter that other is associated:
The above only is preferred embodiment of the present invention, and all equalizations of being done according to claim scope of the present invention change and modify, and all should belong to the covering scope of claim of the present invention.
Claims (1)
1. processing method that printer exhaust part mould prevents to be out of shape comprises:
(1). by the mold flow analysis result, the glue mode is advanced at implementation 2 thin mouths of a river in two outsides in the middle of product, makes sizing material evenly advance glue from the centre to both sides, and the internal stress after the depanning of reduction product is avoided the product distortion;
(2). adopt 280 tons day the steel make-up machine, briquetting pressure is 85, injection speed is 70, the injection time is 4 seconds, pressurize is (one) 25, (two) 25, the dwell time is 1 second, baking material temperature is 75 ℃, the baking material time is 2 seconds, guarantees the normal condition before the product depanning;
(3). the front and back mould adopts two groups of series connection fortune water respectively, and the front and back mould is provided with 25 ℃ of normal temperature, and be 25 seconds cool time, guarantees that product is indeformable after depanning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105488615A CN102107501A (en) | 2010-11-17 | 2010-11-17 | Machining method for preventing exhaust piece die of printer from deforming |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105488615A CN102107501A (en) | 2010-11-17 | 2010-11-17 | Machining method for preventing exhaust piece die of printer from deforming |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102107501A true CN102107501A (en) | 2011-06-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105488615A Pending CN102107501A (en) | 2010-11-17 | 2010-11-17 | Machining method for preventing exhaust piece die of printer from deforming |
Country Status (1)
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| CN (1) | CN102107501A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1032196C (en) * | 1988-10-13 | 1996-07-03 | 世纪株式会社 | Process and apparatus for injection molding |
| US6222594B1 (en) * | 1998-06-30 | 2001-04-24 | Sony Corporation | Runner apparatus for an injection molding process and method therefor |
| CN100581782C (en) * | 2008-12-26 | 2010-01-20 | 北京东明兴业科技有限公司 | Injection molding shaping process of thin wall plastic product |
| CN101817222A (en) * | 2010-04-30 | 2010-09-01 | 王俊 | Production method for injection blow molding integrated plastic flower pot |
| CN101837622A (en) * | 2009-03-20 | 2010-09-22 | 施耐德电器工业公司 | Injection moulding device and injection moulding method and prepared circular ring plastic product |
| CN101863104A (en) * | 2010-05-26 | 2010-10-20 | 大连理工大学 | Injection molding process of plastic microfluidic chip |
-
2010
- 2010-11-17 CN CN2010105488615A patent/CN102107501A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1032196C (en) * | 1988-10-13 | 1996-07-03 | 世纪株式会社 | Process and apparatus for injection molding |
| US6222594B1 (en) * | 1998-06-30 | 2001-04-24 | Sony Corporation | Runner apparatus for an injection molding process and method therefor |
| CN100581782C (en) * | 2008-12-26 | 2010-01-20 | 北京东明兴业科技有限公司 | Injection molding shaping process of thin wall plastic product |
| CN101837622A (en) * | 2009-03-20 | 2010-09-22 | 施耐德电器工业公司 | Injection moulding device and injection moulding method and prepared circular ring plastic product |
| CN101817222A (en) * | 2010-04-30 | 2010-09-01 | 王俊 | Production method for injection blow molding integrated plastic flower pot |
| CN101863104A (en) * | 2010-05-26 | 2010-10-20 | 大连理工大学 | Injection molding process of plastic microfluidic chip |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Application publication date: 20110629 |