CN102211370A - Mould water-transporting structure and design method thereof - Google Patents
Mould water-transporting structure and design method thereof Download PDFInfo
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- CN102211370A CN102211370A CN2011101056886A CN201110105688A CN102211370A CN 102211370 A CN102211370 A CN 102211370A CN 2011101056886 A CN2011101056886 A CN 2011101056886A CN 201110105688 A CN201110105688 A CN 201110105688A CN 102211370 A CN102211370 A CN 102211370A
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- fortune water
- mould
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- water hole
- petal
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Abstract
The invention discloses a mould water-transporting structure which comprises a circular water-transporting hole, wherein a plurality of U-shaped slots are uniformly arranged along the circumference of the circular water-transporting hole, so as to form a petal-shaped water-transporting hole. Compared with the prior art, the mould water-transporting structure has the advantages that the excellent mobility of fluid in the water-transporting hole is maintained by the petal-shaped water-transporting hole, the flow of a liquid medium is changed into turbulent flow from laminar flow and the heat transfer mode is changed into a heat conduction and heat convection mixed heat transfer mode from a single heat convection heat transfer mode between layers, so that the heating/cooling cycle efficiency of a mould is boosted, the quality of an injection-molded product is promoted, the molding period is shortened and the production efficiency is efficiently increased.
Description
[technical field]
The present invention relates generally to a kind of mould fortune water-bound, refers to a kind of petal fortune water hole structure of quickening cold cycling especially.
[background technology]
As everyone knows, when injection mo(u)lding, the temperature of mould cavity can influence the plasticizing of plastic raw materials, mobile and cooling procedure, thereby directly influence the internal performance and the apparent mass (as size, shape and surface accuracy etc.) of moulded products, and then have influence on the mechanical property and the serviceability of moulded products, thereby when injection mo(u)lding, mold temperature is regulated most important.
The existing mold humidity control system is divided into heating system and cooling system, and heating system and cooling system all are to utilize in the structure in circular cross-section fortune water hole to feed a kind of liquid medium, this liquid medium is mobile in the mode of laminar flow in the fortune waterpipe, but, the fortune water hole structure of this circular cross-section only conducts heat with a kind of heat exchange pattern because making between layer and the layer, so its cold and hot exchange efficiency is lower when injection mo(u)lding, thereby directly has influence on Products Quality and reduced production efficiency.
So, a kind of novel mould fortune water-bound is now proposed, to overcome above-mentioned pointed defective.
[summary of the invention]
A kind of method for designing of mould fortune water-bound comprises that following step: a. determines the diameter in fortune water hole, circular water route according to demand; B. utilize the diameter d that converses circular diameter D and U type groove in the cross section in described petal fortune water hole with the relation of the isoflux diameter by described circular water route; C. uniform a plurality of U type grooves on the circumference of the interior circular section in described petal fortune water hole again can obtain described petal fortune water hole.
Wherein, described U type groove semicircular in shape or ellipse.
Wherein, described circular fortune water hole is provided with at least 2 U type grooves along its circumference uniform distribution.
Wherein, described a plurality of U type is along the circumference of interior circular section and uniform.
Wherein, the pass of circular diameter D and uniform a plurality of U type diameter d is in described: D 〉=2d.
Compare with fortune water hole, existing round cross section structure, the characteristics that the present invention is flowed according to fluid, mould is transported the water cross section structure be designed to petal fortune water hole, promptly on a circular fortune water hole, establish a plurality of U type grooves along its circumference uniform distribution, make it can keep fluid good flowability in the fortune water hole, and can make flowing of liquid medium change turbulent flow into from laminar flow, heat transfer type also changes the heat transfer type that heat is conducted and thermal convection current mixes from single layer into heat transfer by heat conduction between the layer, thereby quickened the heating efficient of mould, thereby can improve the injection-molded item quality, shortening molding cycle also effectively enhances productivity.
Can all further understanding and understanding can be arranged to purpose of the present invention, method, structure and effect thereof for ease of the auditor, the present invention be done following detailed description below in conjunction with the drawings and specific embodiments.
[description of drawings]
Accompanying drawing 1 is the fortune of mould described in a present invention water-bound, promptly petal fortune water hole structure;
Accompanying drawing 2 is cavity surface temperature distribution maps that embodiment 1 obtains among the present invention;
Accompanying drawing 3 is cavity surface temperature distribution maps that embodiment 2 obtains among the present invention;
Accompanying drawing 4 is cavity surface temperature distribution maps that embodiment 3 obtains among the present invention;
Accompanying drawing 5 is cavity surface temperature distribution maps that embodiment 4 obtains among the present invention.
[specific embodiment]
The invention will be further elaborated below in conjunction with the drawings and specific embodiments.
Please refer to shown in Figure 1ly, the present invention relates to a kind of mould fortune water-bound, it comprises: a circular fortune water hole; Described circular fortune water hole is provided with a plurality of U type grooves along its circumference uniform distribution to constitute a petal fortune water hole.
And the method for designing of above-mentioned mould fortune water-bound comprises following step:
A. determine fortune water hole, circular water route diameter according to demand;
B. utilize the diameter d that converses circular diameter D and U type groove in the cross section in described petal fortune water hole with the relation of isoflux by fortune water hole, described circular water route diameter;
C. uniform a plurality of U type grooves on the circumference of the interior circular section in described petal fortune water hole again can obtain described petal fortune water hole.
Wherein, described a plurality of U type is along the circumference of interior circular section and uniform.
Wherein, the pass of circular diameter D and uniform a plurality of U type diameter d is in described: D 〉=2d.
In addition, compare with existing circular cross-section fortune water hole for the described petal fortune water hole that the method for designing that shows described mould fortune water-bound more fully designs, can quicken the heating efficient of mould, existing spy sets forth by following 4 embodiment.
Please refer to shown in Figure 2ly, in embodiment 1: adopt the design of circular cross-section fortune water, wherein the mould initial temperature is 20 ℃, and the temperature that feeds high-pressure water heating is 180 ℃, and setting heat time heating time is 20s.The utilization finite element analysis software is simulated, the Temperature Distribution on mold cavity surface behind the analysis 20s.
Fig. 2 utilizes this software to carry out the cavity surface temperature distribution map of temperature analysis, and during heating 20s, the main Temperature Distribution of die cavity wall is between 88.961 ℃～105.819 ℃.
Please refer to shown in Figure 3ly, in embodiment 2: adopt the fortune water design of petal cross section, wherein the mould initial temperature is 20 ℃, and feeding the high-pressure water heating temperature is 180 ℃, and setting heat time heating time is 20s.The utilization finite element analysis software is simulated, the Temperature Distribution on mold cavity surface behind the analysis 20s.
Fig. 3 utilizes this software to carry out the cavity surface temperature distribution map of temperature analysis, and during heating 20s, the main Temperature Distribution of die cavity wall is between 90.159 ℃～107.299 ℃.Compare with Fig. 2, the whole heating-up temperature of die cavity wall improves, and visible described petal cross section fortune water-bound helps improving the heat-transfer effect of die cavity wall.
Please refer to shown in Figure 4ly, in embodiment 3: adopt the design of circular cross-section fortune water, wherein the mould initial temperature is 200 ℃, and cooling water temperature is 20 ℃, and setting cool time is 20s.The utilization finite element analysis software is simulated, the Temperature Distribution on mold cavity surface behind the analysis 20s.
Fig. 4 utilizes this software to carry out the cavity surface temperature distribution map of temperature analysis, and behind the cooling 20s, the main Temperature Distribution of die cavity wall is between 87.044 ℃～105.58 ℃.
Please refer to shown in Figure 5ly, in embodiment 4: adopt the fortune water design of petal cross section, wherein the mould initial temperature is 200 ℃, and cooling water temperature is 20 ℃, and setting cool time is 20s.The utilization finite element analysis software is simulated, the Temperature Distribution on mold cavity surface behind the analysis 20s.
Fig. 5 utilizes this software to carry out the cavity surface temperature distribution map of temperature analysis, and behind the cooling 20s, the main Temperature Distribution of die cavity wall is between 84.166 ℃～102.974 ℃.Compare with Fig. 4, the whole chilling temperature of die cavity wall reduces, and visible described petal cross section fortune water-bound helps improving the cooling effect of die cavity wall.
In sum, the petal fortune water-bound that utilizes mould fortune water-bound method for designing of the present invention to design, can keep fluid good flowability in the fortune water hole, and can make flowing of liquid medium change turbulent flow into from laminar flow, heat transfer type also changes the heat transfer type that heat is conducted and thermal convection current mixes from single layer into heat transfer by heat conduction between the layer, thereby quickened the heating efficient of mould, thereby improve the injection-molded item quality, shortened molding cycle and effectively enhancing productivity.
Above-mentioned explanation is the detailed description at the preferable possible embodiments of the present invention, but described embodiment is not in order to limit patent claim of the present invention, equal variation that all disclosed technical spirits are finished down or modification change all should belong to the claim that the present invention is contained.
Claims (6)
1. a mould fortune water-bound is characterized in that, comprising:
One circular fortune water hole;
Described circular fortune water hole is provided with a plurality of U type grooves along its circumference uniform distribution to constitute a petal fortune water hole.
2. mould fortune water-bound as claimed in claim 1 is characterized in that: described U type groove semicircular in shape or ellipse.
3. mould fortune water-bound as claimed in claim 1 is characterized in that: described circular fortune water hole is provided with at least 2 U type grooves along its circumference uniform distribution.
4. as claim 1 or 2 or 3 described mould fortune water-bounds, it is characterized in that: described U type groove is equally distributed along the circumference of the interior circular section in described circular fortune water hole.
5. the method for designing as claim 1 or 2 or 3 described mould fortune water-bounds is characterized in that, comprises following step:
A. determine fortune water hole, circular water route diameter according to demand;
B. utilize the diameter d that converses circular diameter D and U type groove in the cross section in described petal fortune water hole with the relation of isoflux by fortune water hole, described circular water route diameter;
C. uniform a plurality of U type grooves on the circumference of the interior circular section in described petal fortune water hole again can obtain described petal fortune water hole.
6. the method for designing of mould as claimed in claim 5 fortune water-bound is characterized in that: the diameter d pass of circular diameter D and uniform a plurality of U type grooves is in the cross section in described petal fortune water hole in: D 〉=2d.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101056886A CN102211370A (en) | 2011-04-25 | 2011-04-25 | Mould water-transporting structure and design method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101056886A CN102211370A (en) | 2011-04-25 | 2011-04-25 | Mould water-transporting structure and design method thereof |
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| CN102211370A true CN102211370A (en) | 2011-10-12 |
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| CN2011101056886A Pending CN102211370A (en) | 2011-04-25 | 2011-04-25 | Mould water-transporting structure and design method thereof |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1142434A (en) * | 1995-02-14 | 1997-02-12 | 金尾千鹤子 | Synthetic resin corrugated pipe having concave-convex surface |
| JPH11333898A (en) * | 1998-05-26 | 1999-12-07 | Sony Corp | Mold for injection molding |
| JP2000301577A (en) * | 1999-04-23 | 2000-10-31 | Koshin Giken Kk | Cobwebbing preventive sprue bush |
| CN1329538A (en) * | 1998-12-07 | 2002-01-02 | 乔布斯特·乌尔里克·盖勒特 | Injection molding cooling core having spiral grooves |
| DE20200648U1 (en) * | 2002-01-17 | 2002-05-02 | Varioplast Konrad Däbritz GmbH, 75443 Ötisheim | injection mold |
| JP2004155070A (en) * | 2002-11-07 | 2004-06-03 | Meiki Co Ltd | Mold and method for molding disk board |
| CN1774326A (en) * | 2003-04-15 | 2006-05-17 | 3+挤出机有限公司 | Multiple-shaft extruder |
-
2011
- 2011-04-25 CN CN2011101056886A patent/CN102211370A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1142434A (en) * | 1995-02-14 | 1997-02-12 | 金尾千鹤子 | Synthetic resin corrugated pipe having concave-convex surface |
| JPH11333898A (en) * | 1998-05-26 | 1999-12-07 | Sony Corp | Mold for injection molding |
| CN1329538A (en) * | 1998-12-07 | 2002-01-02 | 乔布斯特·乌尔里克·盖勒特 | Injection molding cooling core having spiral grooves |
| JP2000301577A (en) * | 1999-04-23 | 2000-10-31 | Koshin Giken Kk | Cobwebbing preventive sprue bush |
| DE20200648U1 (en) * | 2002-01-17 | 2002-05-02 | Varioplast Konrad Däbritz GmbH, 75443 Ötisheim | injection mold |
| JP2004155070A (en) * | 2002-11-07 | 2004-06-03 | Meiki Co Ltd | Mold and method for molding disk board |
| CN1774326A (en) * | 2003-04-15 | 2006-05-17 | 3+挤出机有限公司 | Multiple-shaft extruder |
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Application publication date: 20111012 |