CN101774268A - Precise extruding mold head - Google Patents
Precise extruding mold head Download PDFInfo
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- CN101774268A CN101774268A CN201010118550A CN201010118550A CN101774268A CN 101774268 A CN101774268 A CN 101774268A CN 201010118550 A CN201010118550 A CN 201010118550A CN 201010118550 A CN201010118550 A CN 201010118550A CN 101774268 A CN101774268 A CN 101774268A
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Abstract
The invention provides a precise extruding mold head, which comprises a connection head and a plurality of opening mold plates, wherein the opening mold plates are provided with die cavities, die cores are arranged in the die cavities, the die cores and the inner walls of the die cavities are connected through separating ribs, all the opening mold plates are connected, material flow passages are formed between the die cavities and the die cores, the material flow passages are separated into a plurality of independent sub flow passages through the separating ribs in the extruding direction, a flow collecting cavity provided with no separating rib is arranged close to an outlet on the opening mold plate of the outermost end, die cavity size fine regulating mechanisms are arranged on one or a plurality of opening die plates, local heating devices are arranged in narrow and fine parts of local parts of the die cavities of the opening mole plates, the die cores and the opening mold plates are in one-to-one correspondence and are connected into a whole body through the separating ribs, and the material flow passages are formed through the gradual change of the die cavities of the opening mold plates. The invention eliminates great interference of errors in the die core assembling process on the material flowing, and the die cavity size fine regulating mechanisms and local heaters arranged at narrow and fine parts are arranged on the precise extruding mold head, so fused materials in the mold head can be continuously, smoothly and precisely extruded out.
Description
Technical field
The present invention relates to a kind of plastic irregular profile extruding technology, particularly a kind of precise extruding mold head at the various plastic irregular profiles of quantity-produced.
Background technology
In the plastic processing industry, expressing technique is one of common methods of being produced by plastic raw materials in goods.Along with social, economic continuous accelerated development, this field also is faced with is extruding the competition requirement that aspects such as precision, production efficiency and economic benefit need constantly promote.Wherein, precision is extruded becomes an important development trend just day by day.The die head of plastic profiled bar extrusion die then is to realize accurate key device and the precondition of extruding.
The common circular material melt that extrusion die is used to extruder is provided changes and finally forms required various special-shaped product parisons gradually through coupling head, shunting section, compression section to flat segments.In die head device, plastic raw materials is in molten state under the high temperature heating.Based on hydromechanical angle, this melting condition is determined by a large amount of rheological phenomena.The applied method of statement flow behavior mainly contains to be measured the relation between melt flow index MFI value, research viscosity and the elasticity and utilizes hyperacoustic line Measurement Technique etc.In recent years theory and practical study are target to describe the extrusion die mobile performance, have used for reference material data and a large amount of practical experience, institute's generating process in the extrusion die are had certain understanding in depth.In view of this, plastic irregular profile is extruded the employed die head device in field and is generally formed by several mouth templates that are arranged in order and core.Wherein core is lifted on the supporting mouth template, forms the die cavity runner of extrusion die jointly with all mouth templates, and the shape of die cavity runner exports the net shape that more and more approaches goods along extruding direction from entering the mouth to.Extrusion die is the article shape with regard to having determined to produce later when plastics are in molten state, is the key device of realizing the expressing technique process, is the precondition that accurately obtains various profiled-cross-section goods.Weak point is: the error in the core assembling process can produce huge interference to Flow of Goods and Materials.
Summary of the invention
The technical problem to be solved in the present invention is at the deficiencies in the prior art, has proposed a kind of precise extruding mold head.It eliminated core assembling process error to the huge interference of Flow of Goods and Materials, make the material that is in molten state in the die head be able to precision continuously reposefully to extrude.
The technical problem to be solved in the present invention is achieved through the following technical solutions, a kind of precise extruding mold head, comprise connector and some mouth templates, be characterized in: mouth template is provided with die cavity, in die cavity, be provided with core, between the inwall of core and die cavity by dividing a muscle to be connected, all mouth templates link together, between die cavity and core, constitute the material runner, the material runner is divided into some independently runners by extruding direction by above-mentioned minute muscle, the close exit of the mouth template of outermost end is set to not divide the chamber of confluxing of muscle, and one or more mouth template is provided with die cavity size micro-adjusting mechanism.
The technical problem to be solved in the present invention can also be come by the following technical programs further to realize, is provided with area heating installation at the narrow thin position of mouth template die cavity part.
The technical problem to be solved in the present invention can also come further to realize by the following technical programs, and die cavity size micro-adjusting mechanism comprises the plurality of sections narrow slit that is arranged on around the type of chamber, and narrow slit is wide to be 0.1～10mm, and the outside of narrow slit is provided with the adjustment screw.
The present invention compared with prior art, core is corresponding one by one with mouth template, and connect as one by a minute muscle, the gradual change of through port template die cavity forms the material runner, be divided into some independently runners by a minute muscle, it has eliminated core assembling process error to the huge interference of Flow of Goods and Materials and be equipped with die cavity size micro-adjusting mechanism and narrow thin position area heating installation, makes the material that is in molten state in the die head be able to precision continuously reposefully and extrudes.
Description of drawings
Fig. 1 is a structure diagram of the present invention.
Fig. 2 is a die cavity size micro-adjusting mechanism schematic diagram.
Fig. 3 is the area heating installation structural representation.
The specific embodiment
A kind of precise extruding mold head, comprise connector 1 and some mouth templates 2, mouth template 2 is provided with die cavity 7, in die cavity 7, be provided with core 3, between the inwall of core 3 and die cavity 7 by dividing a muscle 4 to be connected, all mouth templates link together, between die cavity and core, constitute the material runner, the material runner is divided into some independently runners by extruding direction by above-mentioned minute muscle 4, generally separated fully relatively equably by upper and lower, left and right extruding on the direction, also might only be separated into two parts or arbitrarily more part.Runner on each mouth template generally is followed successively by shunting section, compression section and flat segments along extruding direction.The gradual change of through port template die cavity forms the material runner.The mouth template of outermost end is set to not divide the chamber of confluxing of muscle near the exit.
One or more mouth template is provided with die cavity size micro-adjusting mechanism.What Fig. 2 represented is the mouth template of shunting section.Die cavity size micro-adjusting mechanism comprises the plurality of sections narrow slit 5 that is arranged on around the type of chamber, and narrow slit 5 is wide to be 0.1～10mm, and the outside of narrow slit 5 is provided with adjusts screw 6.The narrow slit operated by rotary motion is in the bigger side of section bar flatness, or is located at a side of corresponding section bar visible surface.Corresponding processing counterbore and screw thread use corresponding adjustment screw to be screwed in the outside of narrow slit, tighten or the process of loosening screw in can regulate corresponding die cavity gap length, thereby reach the purpose of regulating material flow.When the somewhere material flow is very fast, can suitably regulate, tighten screw, can reduce the die cavity gap, thereby reduce material flow, be able to balance with other position material flow.
Narrow thin position in mouth template die cavity part is provided with area heating installation 8.What Fig. 3 represented is the mouth template of flat true section.Area heating installation is located on one or more mouth template by actual needs, and a place or many places can be set.Area heating installation 8 is the slit location design heating rod installing holes that are difficult to extrude by material in the ordinary course of things, heating rod is installed in it, but carry out suitably heating of part at the flow velocity external power supply of material under actual conditions, thereby reach the purpose of regulating material flow.When the somewhere material flow is slow, can suitably heat, thereby increase material flow, be able to balance with other position material flow by external temperature controller.
Claims (4)
1. precise extruding mold head, comprise connector and some mouth templates, it is characterized in that: mouth template is provided with die cavity, in die cavity, be provided with core, between the inwall of core and die cavity by dividing a muscle to be connected, all mouth templates link together, between die cavity and core, constitute the material runner, the material runner is divided into some independently runners by extruding direction by above-mentioned minute muscle, the close exit of the mouth template of outermost end is set to not divide the chamber of confluxing of muscle, and one or more mouth template is provided with die cavity size micro-adjusting mechanism.
2. precise extruding mold head according to claim 1 is characterized in that: the narrow thin position in mouth template die cavity part is provided with area heating installation.
3. precise extruding mold head according to claim 1 is characterized in that: die cavity size micro-adjusting mechanism comprises the plurality of sections narrow slit that is arranged on around the type of chamber, and the outside of narrow slit is provided with the adjustment screw.
4. precise extruding mold head according to claim 3 is characterized in that: the wide 0.1～10mm of being of narrow slit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010118550A CN101774268A (en) | 2010-03-05 | 2010-03-05 | Precise extruding mold head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010118550A CN101774268A (en) | 2010-03-05 | 2010-03-05 | Precise extruding mold head |
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| CN101774268A true CN101774268A (en) | 2010-07-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201010118550A Pending CN101774268A (en) | 2010-03-05 | 2010-03-05 | Precise extruding mold head |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102529059A (en) * | 2012-01-19 | 2012-07-04 | 黄石鸿迪塑料模具有限公司 | High quality American plastic profile extruding die |
| CN103407143A (en) * | 2013-07-26 | 2013-11-27 | 青岛科技大学 | Method and device for extruding rubber and montmorillonite directionally in shunting manner |
| CN105196512A (en) * | 2015-10-13 | 2015-12-30 | 铜陵格瑞特挤出技术有限公司 | Plastic profile extrusion die head allowing material flow speed at single arm parts to be adjusted |
| CN107511981A (en) * | 2017-08-31 | 2017-12-26 | 四川塑塑料制品有限公司 | A kind of double-material profile and extrusion die |
| CN108189362A (en) * | 2018-03-19 | 2018-06-22 | 广东柳道热流道系统有限公司 | Squeeze out hot runner system |
| CN109382997A (en) * | 2018-12-07 | 2019-02-26 | 东莞市银禧光电材料科技股份有限公司 | The non-equal wall thickness of one kind squeeze out profile mold |
| CN112659578A (en) * | 2020-12-10 | 2021-04-16 | 苏州鸿凌达电子科技有限公司 | Preparation method of silica gel sheet with low dielectric constant and high heat conductivity coefficient |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1110706A (en) * | 1997-06-19 | 1999-01-19 | Yoshino Kogyosho Co Ltd | Extrusion molding die for adjusting unevenness easily and unevenness adjusting device thereof |
| CN201291580Y (en) * | 2008-09-19 | 2009-08-19 | 铜陵三佳科技股份有限公司 | Plastic special-shaped section bar extrusion mould head with high-accuracy assembly |
-
2010
- 2010-03-05 CN CN201010118550A patent/CN101774268A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1110706A (en) * | 1997-06-19 | 1999-01-19 | Yoshino Kogyosho Co Ltd | Extrusion molding die for adjusting unevenness easily and unevenness adjusting device thereof |
| CN201291580Y (en) * | 2008-09-19 | 2009-08-19 | 铜陵三佳科技股份有限公司 | Plastic special-shaped section bar extrusion mould head with high-accuracy assembly |
Non-Patent Citations (1)
| Title |
|---|
| 《国外塑料》 20080331 吴大鸣 精密挤出技术的开发和应用 48-54 1-4 第26卷, 第3期 2 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102529059A (en) * | 2012-01-19 | 2012-07-04 | 黄石鸿迪塑料模具有限公司 | High quality American plastic profile extruding die |
| CN103407143A (en) * | 2013-07-26 | 2013-11-27 | 青岛科技大学 | Method and device for extruding rubber and montmorillonite directionally in shunting manner |
| CN105196512A (en) * | 2015-10-13 | 2015-12-30 | 铜陵格瑞特挤出技术有限公司 | Plastic profile extrusion die head allowing material flow speed at single arm parts to be adjusted |
| CN107511981A (en) * | 2017-08-31 | 2017-12-26 | 四川塑塑料制品有限公司 | A kind of double-material profile and extrusion die |
| CN108189362A (en) * | 2018-03-19 | 2018-06-22 | 广东柳道热流道系统有限公司 | Squeeze out hot runner system |
| CN109382997A (en) * | 2018-12-07 | 2019-02-26 | 东莞市银禧光电材料科技股份有限公司 | The non-equal wall thickness of one kind squeeze out profile mold |
| CN112659578A (en) * | 2020-12-10 | 2021-04-16 | 苏州鸿凌达电子科技有限公司 | Preparation method of silica gel sheet with low dielectric constant and high heat conductivity coefficient |
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Application publication date: 20100714 |