CN104441517A - Sprue mold core cooling structure and injection mold cooling structure - Google Patents
Sprue mold core cooling structure and injection mold cooling structure Download PDFInfo
- Publication number
- CN104441517A CN104441517A CN201410681911.5A CN201410681911A CN104441517A CN 104441517 A CN104441517 A CN 104441517A CN 201410681911 A CN201410681911 A CN 201410681911A CN 104441517 A CN104441517 A CN 104441517A
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- Prior art keywords
- cast gate
- water
- cooling
- die
- cooling structure
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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
- B29C45/72—Heating or cooling
- B29C45/73—Heating or cooling of the mould
- B29C45/7312—Construction of heating or cooling fluid flow channels
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a cooling structure, and particularly relates to a sprue mold core cooling structure. The sprue mold core cooling structure provided by the invention can improve the cooling efficiency and also prolong the service life of a mold core. The sprue mold core cooling structure comprises a sprue mold core and an annular water-cooled jacket consisting of at least two petals of inserts, wherein a water inlet and a water outlet are formed in the annular water-cooled jacket; the water-cooled jacket sleeves the outer wall of the sprue mold core in a sealing manner, a cooling water path is arranged between the inner wall of the water-cooled jacket and the outer wall of the sprue mold core, and the cooling water path is connected with the water inlet and the water outlet. Due to the adoption of the combined annular water-cooled jacket, a gap between the inserts can be naturally stretched in the quick cooling process of a sprue, and thus thermal expansion and contraction is effectively compensated, the direct influence on the mold core is avoided, the cooling of the sprue can be quickened to the maximum extent, and the production efficiency of the product can be greatly improved.
Description
Technical field
The present invention relates to a kind of cooling structure, especially a kind of cast gate die cooling structure and injection mold cooling structure.
Background technology
In injection mo(u)lding, the plastics of melting are injected into die cavity from the cast gate of mould, through cooling final molding.The cooling effectiveness of mould is related to the production efficiency of whole product, and namely mould cools faster after injection moulding, then production efficiency is also higher.Can, because cast gate place directly contacts with injection machine, therefore temperature be herein higher, cool just very crucial fast.But, if quick cooling cast gate deliberately, press close to cast gate by cooling water channel, then the difference variation of die can be caused excessive, affect the life-span of die.
Summary of the invention
Technical problem to be solved by this invention is to provide one can increase cooling effectiveness, also can protect the cast gate die cooling structure in die life-span.
The present invention solves the cast gate die cooling structure that its technical problem adopts, and comprises cast gate die, also comprises the annular water collar be made up of at least two lobe mold inserts, described water collar is provided with water inlet and delivery port; Described water collar sealing shroud is located on cast gate die outer wall, and is provided with cooling water channel between the inwall and the outer wall of cast gate die of water collar, and described cooling water channel is connected with delivery port with water inlet.
Further, described cooling water channel spiral surrounding cast gate die is arranged, and delivery port relative to delivery port in height more near the cast gate place of cast gate die.
Further, described cooling water channel is arranged along the cast gate place of cast gate die around a circle.
Further, described cooling water channel is combined by the groove on the tank on water collar inwall and cast gate die outer wall.
Further, described annular water collar is made up of the mold insert of two semicircular arcs, and water inlet and delivery port are separately positioned on two mold inserts.
Further, the horizontal range of described cooling water channel distance cast gate is 9.1-10mm.
Further, the minimum wall thickness (MINI W.) of described cast gate die at cooling water channel place is 3.4-4mm.
Further, described mold insert is spelled by metal binding agent edge.
In addition; another technical problem that will solve of the present invention is to provide one can increase cooling effectiveness; also the injection mold cooling structure in die life-span can be protected; comprise above-mentioned cast gate die cooling structure and die cavity; the outer wall of described die cavity is provided with water inlet, outer cooling water channel, outer water inlet and out outlet; described outer water inlet is all connected with outer cooling water channel with out outlet; described die cavity is set on the annular water collar of gating pattern Renhe; and outer water inlet is connected with water inlet, described out outlet is connected with delivery port.
Further, described outer cooling water channel is made up of upper strata water annulus and lower floor's water annulus, and water annulus is more near cast gate at the middle and upper levels for it, and described water inlet is connected with lower floor water annulus, and described outer water inlet is connected with upper strata water annulus; Lower floor's water annulus one end of relative water inlet and upper strata water annulus mutually externally one end of water inlet be connected.
The invention has the beneficial effects as follows: owing to have employed knockdown annular water collar, like this in cast gate cools fast, can naturally stretch in gap between mold insert, thus effectively compensate for and expand with heat and contract with cold, which avoid the direct impact on die, thus the cooling of cast gate can be accelerated to greatest extent, can greatly accelerate production efficiency undoubtedly.Annular water tank can be designed to from cast gate 9.1mm by we now, wall thickness 3.4mm, basic close to the strength degree of die, structurally the cooling of cast gate has been performed to the limit.Knockdown annular water collar adopts two lobe mold insert compositions usually, is convenient to processing and assembling.Modular annular water collar also can make the processing of cooling water channel convenient, thus can process the cooling water channel of complex course.
Accompanying drawing explanation
Fig. 1 be cast gate die cooling structure partly cut open figure;
Fig. 2 be injection mold cooling structure partly cut open figure;
Fig. 3 is the schematic diagram of cast gate die;
Fig. 4 is the schematic diagram of mold insert;
Fig. 5 is the schematic diagram of another block mold insert;
Fig. 6 is the schematic diagram of die cavity;
Parts, position and numbering in figure: cast gate die 1, annular water collar 2, die cavity 3, water inlet 4, delivery port 5, cooling water channel 6, water inlet 7, outer cooling water channel 8, outer water inlet 9, out outlet 10.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
As shown in figures 1 and 3, the present invention includes cast gate die 1, also comprise the annular water collar 2 be made up of at least two lobe mold inserts, described water collar is provided with water inlet 4 and delivery port 5; Described water collar sealing shroud is located on cast gate die 1 outer wall, and is provided with cooling water channel 6 between the inwall and the outer wall of cast gate die 1 of water collar, and described cooling water channel 6 is connected with delivery port 5 with water inlet 4.Traditional cast gate die does not adopt annular water collar 2, but directly forms cooling water channel 6 by cast gate die 1 and die cavity 3, and this has influence on die cavity 3 with regard to causing the cooling of cast gate.And this cooling structure have employed annular water collar 2, the annular water collar 2 combined itself has gap, effectively can compensate and expand with heat and contract with cold, thus avoids die cavity 3 to be affected.Cast gate die 1 is adding man-hour and conventional cast gate die 1 indistinction, but that cooling water channel 6 can be offered on the outer wall of cast gate die 1 is darker, such as following size, cooling water channel 6 is 9.1-10mm apart from the horizontal range of cast gate, and cast gate die 1 is 3.4-4mm at the minimum wall thickness (MINI W.) at cooling water channel 6 place; Level herein refers to the direction with cast gate die 1 axes normal, highly refers to the axis of cast gate die 1; Such benefit is can cool cast gate die 1 fast.As shown in Figures 4 and 5, annular water collar 2 is processed respectively according to lobe number, the tiles of the equal camber of every lobe insert, final combination on cast gate die 1, metal binding agent can be adopted to inlay spell, other syndeton can be adopted to combine, like this, the compensation of expanding with heat and contract with cold can be carried out in gap between insert in cooling, thus effectively prevents die cavity to be affected.
Concrete, described cooling water channel 6 spiral surrounding cast gate die 1 is arranged, and delivery port 5 relative to delivery port 5 in height more near the cast gate place of cast gate die 1.This mode is applicable to the longer situation of cast gate die 1, effectively can cool each position of cast gate die 1.
Another kind as cooling water channel 6 lays mode, and described cooling water channel 6 is arranged along the cast gate place of cast gate die 1 around a circle.This mode can make current fast through cast gate place, thus takes away heat fast, and its efficiency is higher.
Concrete, described cooling water channel 6 is combined by the groove on the tank on water collar inwall and cast gate die 1 outer wall.Certainly, cooling water channel 6 also can be only made up of the groove on cast gate die 1.
Concrete, as shown in Figures 4 and 5, described annular water collar 2 is made up of the mold insert of two semicircular arcs, and water inlet 4 and delivery port 5 are separately positioned on two mold inserts.Such structure is simple, and to add man-hour convenient and swift, during assembling, the workload of split is also minimum.
As shown in Figure 2, injection mold cooling structure of the present invention, comprise aforesaid cast gate die cooling structure and die cavity 3, the outer wall of described die cavity 3 is provided with water inlet 7, outer cooling water channel 8, outer water inlet 9 and out outlet 10, described outer water inlet 9 and out outlet 10 are all connected with outer cooling water channel 8, described die cavity 3 is set on cast gate die 1 and annular water collar 2, and outer water inlet 9 is connected with water inlet 4, and described out outlet 10 is connected with delivery port 5.When cooling, cooling water enters into outer cooling water channel 8 from water inlet 7, and first cool die cavity 3, the laying mode of outer cooling water channel 8 can be decided according to the actual requirements, general position annular.Then cooling water enters into water inlet 4 from outer water inlet 9, then enters into cooling water channel 6, thus cools cast gate die 1 fast, and then cooling water flows out from delivery port 5 again, eventually passes through out outlet 10 and discharges.This injection mold cooling structure has the advantage of aforementioned cast gate die cooling structure, can protect die cavity 3 when cooling cast gate die 1 fast.
In order to better cool die cavity 1, as shown in Figure 6, described outer cooling water channel 8 is made up of upper strata water annulus and lower floor's water annulus, its at the middle and upper levels water annulus more near cast gate, described water inlet 7 is connected with lower floor water annulus, and described outer water inlet 9 is connected with upper strata water annulus; Lower floor's water annulus one end of relative water inlet 7 and upper strata water annulus mutually externally one end of water inlet 9 be connected.Cooling water cools die cavity 1 from down to up through two loops, can better lower the temperature for die cavity 1.
Claims (10)
1. cast gate die cooling structure, comprise cast gate die (1), it is characterized in that: also comprise the annular water collar (2) be made up of at least two lobe mold inserts, described water collar is provided with water inlet (4) and delivery port (5); Described water collar sealing shroud is located on cast gate die (1) outer wall, and cooling water channel (6) is provided with between the inwall and the outer wall of cast gate die (1) of water collar, described cooling water channel (6) is connected with delivery port (5) with water inlet (4).
2. cast gate die cooling structure as claimed in claim 1, it is characterized in that: described cooling water channel (6) spiral surrounding cast gate die (1) arrange, and delivery port (5) relative to delivery port (5) in height more near the cast gate place of cast gate die (1).
3. cast gate die cooling structure as claimed in claim 1, is characterized in that: described cooling water channel (6) is arranged along the cast gate place of cast gate die (1) around a circle.
4. the cast gate die cooling structure as described in claim 1,2 or 3, is characterized in that: described cooling water channel (6) is combined by the groove on the tank on water collar inwall and cast gate die (1) outer wall.
5. the cast gate die cooling structure as described in claim 1,2 or 3, it is characterized in that: described annular water collar (2) is made up of the mold insert of two semicircular arcs, and water inlet (4) and delivery port (5) are separately positioned on two mold inserts.
6. the cast gate die cooling structure as described in claim 1,2 or 3, is characterized in that: the horizontal range of described cooling water channel (6) distance cast gate is 9.1-10mm.
7. the cast gate die cooling structure as described in claim 1,2 or 3, is characterized in that: described cast gate die (1) is 3.4-4mm at the minimum wall thickness (MINI W.) at cooling water channel (6) place.
8. the cast gate die cooling structure as described in claim 1,2 or 3, is characterized in that: described mold insert is spelled by metal binding agent edge.
9. injection mold cooling structure, it is characterized in that: comprise the cast gate die cooling structure as described in claim as arbitrary in claim 1 to 8 and die cavity (3), the outer wall of described die cavity (3) is provided with water inlet (7), outer cooling water channel (8), outer water inlet (9) and out outlet (10), described outer water inlet (9) is all connected with outer cooling water channel (8) with out outlet (10), described die cavity (3) is set on cast gate die (1) and annular water collar (2), and outer water inlet (9) is connected with water inlet (4), described out outlet (10) is connected with delivery port (5).
10. injection mold cooling structure as claimed in claim 9, it is characterized in that: described outer cooling water channel (8) is made up of upper strata water annulus and lower floor's water annulus, its at the middle and upper levels water annulus more near cast gate, described water inlet (7) is connected with lower floor water annulus, and described outer water inlet (9) is connected with upper strata water annulus; Lower floor's water annulus one end of relative water inlet (7) and upper strata water annulus mutually externally one end of water inlet (9) be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410681911.5A CN104441517A (en) | 2014-11-24 | 2014-11-24 | Sprue mold core cooling structure and injection mold cooling structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410681911.5A CN104441517A (en) | 2014-11-24 | 2014-11-24 | Sprue mold core cooling structure and injection mold cooling structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104441517A true CN104441517A (en) | 2015-03-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410681911.5A Pending CN104441517A (en) | 2014-11-24 | 2014-11-24 | Sprue mold core cooling structure and injection mold cooling structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108692909A (en) * | 2018-06-27 | 2018-10-23 | 中国空气动力研究与发展中心高速空气动力研究所 | A kind of water-cooling structure being thermally shielded protection to wind-tunnel balance |
Citations (6)
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|---|---|---|---|---|
| KR20050003110A (en) * | 2003-06-30 | 2005-01-10 | 주식회사 대우일렉트로닉스 | Core cool structure of injection molding |
| CN201559290U (en) * | 2009-12-04 | 2010-08-25 | 汉达精密电子(昆山)有限公司 | Three-plate mold sprue cooling mechanism |
| CN103407134A (en) * | 2013-07-29 | 2013-11-27 | 无锡安迪利捷贸易有限公司 | Irregularly-shaped cooling water channel structure of mould and processing method for mould employing same |
| CN203831714U (en) * | 2013-12-26 | 2014-09-17 | 东莞康佳模具塑胶有限公司 | Novel combined sprue bush |
| CN203844131U (en) * | 2014-04-15 | 2014-09-24 | 昆山市大久电子有限公司 | Double-tube type water-cooling anti-wire-drawing sprue bushing |
| CN204322460U (en) * | 2014-11-24 | 2015-05-13 | 四川省宜宾普什模具有限公司 | Cast gate die cooling structure and injection mold cooling structure |
-
2014
- 2014-11-24 CN CN201410681911.5A patent/CN104441517A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050003110A (en) * | 2003-06-30 | 2005-01-10 | 주식회사 대우일렉트로닉스 | Core cool structure of injection molding |
| CN201559290U (en) * | 2009-12-04 | 2010-08-25 | 汉达精密电子(昆山)有限公司 | Three-plate mold sprue cooling mechanism |
| CN103407134A (en) * | 2013-07-29 | 2013-11-27 | 无锡安迪利捷贸易有限公司 | Irregularly-shaped cooling water channel structure of mould and processing method for mould employing same |
| CN203831714U (en) * | 2013-12-26 | 2014-09-17 | 东莞康佳模具塑胶有限公司 | Novel combined sprue bush |
| CN203844131U (en) * | 2014-04-15 | 2014-09-24 | 昆山市大久电子有限公司 | Double-tube type water-cooling anti-wire-drawing sprue bushing |
| CN204322460U (en) * | 2014-11-24 | 2015-05-13 | 四川省宜宾普什模具有限公司 | Cast gate die cooling structure and injection mold cooling structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108692909A (en) * | 2018-06-27 | 2018-10-23 | 中国空气动力研究与发展中心高速空气动力研究所 | A kind of water-cooling structure being thermally shielded protection to wind-tunnel balance |
| CN108692909B (en) * | 2018-06-27 | 2023-08-04 | 中国空气动力研究与发展中心高速空气动力研究所 | Water cooling structure for heat insulation protection of wind tunnel balance |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150325 |
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| RJ01 | Rejection of invention patent application after publication |