CN101480836A - Mold for highlight non-trace injection molding - Google Patents
Mold for highlight non-trace injection molding Download PDFInfo
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- CN101480836A CN101480836A CNA2009101050558A CN200910105055A CN101480836A CN 101480836 A CN101480836 A CN 101480836A CN A2009101050558 A CNA2009101050558 A CN A2009101050558A CN 200910105055 A CN200910105055 A CN 200910105055A CN 101480836 A CN101480836 A CN 101480836A
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- medium channel
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Abstract
The invention relates to a superficial high-light weldless injection mould which comprises a mould core. A conformal hot-cold medium channel is arranged on the mould core near the lower side of a mould cavity surface; and the conformal hot-cold medium channel divides the part of the mould core near the mould cavity surface into a heat transferring area and the part below the conformal hot-cold medium channel into a support area. The superficial high-light weldless injection mould is characterized in that a heat insulating clearance or heat insulating channel is arranged on the mould core and in the support area below the part near the conformal hot-cold medium channel; and the heat insulating clearance or heat insulating channel divides the support area into a medium channel area and a heat insulating area. In the course of injection moulding, the heat change of fast heating and cooling circulation is concentrated near the mould cavity surface, so the invention can greatly reduce the loss of heat, improve the production efficiency and reduce the injection production cost. Because the heat change of fast heating and cooling circulation is concentrated near the mould cavity surface, the temperature of hot medium can be lower during heating, the performance index requirement for fast hot-cold equipment is lowered, and the equipment investment is saved.
Description
Technical field
What the present invention relates to is injection forming mold, especially a kind of towards the high-surface gloss traceless injection molding mould.
Background technology
At present, high-surface gloss traceless injection molding mainly carries out even heating and cooling to mould in plastic injection-moulded process realizes, the heating and cooling of this injection forming mold are undertaken by the cold medium channel of conformal heat is set in mould, and the cold medium channel of conformal heat that is arranged in the injection forming mold is separated into heat transfer zone and supporting zone with mould.The specific implementation method of this injection forming mold mainly comprises following several:
1, with the mould subdivision is heat transfer zone and supporting zone two parts, mould is assembled by conduct heat zone and supporting zone two parts, on conduct heat zone and the two-part faying face of supporting zone, offer the conformal heat cold medium channel consistent with mold cavity, its with die face apart from even.
2, use the directly approximate cold medium channel of conformal heat of drilling on mould of depth drill, unitary mould is separated into heat transfer zone and supporting zone by the cold medium channel of conformal heat.
3, utilize powder rapid forming technology stack shaping to have the mould of the cold medium channel of conformal heat, the mould of stack shaping is separated into heat transfer zone and supporting zone by the cold medium channel of conformal heat.
In the injection molding process in the conformal medium channel of mould fast alternate cycles feed hot cold medium, just can obtain the plastic product of high finish surface.
But, also there is the not high shortcoming of efficient in existing mould towards high-surface gloss traceless injection molding, with the cold medium channel of conformal heat is the center, heat transfer on only oriented mold cavity surface single direction on the six direction of space is favourable, and the heat transfer on other five directions is unhelpful energy consumption, and is especially more obvious for this shortcoming of the plastics with high heat distortion temperature, have to use the thermal medium of higher temperature, cause injection cycle long, equipment cost increases, and energy consumption further increases.
Summary of the invention
Technical problem to be solved by this invention is to remedy the defective that above-mentioned prior art exists, and provides a kind of towards the high-surface gloss traceless injection molding mould.
Technical problem of the present invention is solved by the following technical programs.
This towards the high-surface gloss traceless injection molding mould, comprise: core rod, core rod near-lying mode tool cavity surface lower portion is provided with the cold medium channel of conformal heat, the cold medium channel of this conformal heat is divided into the zone of conducting heat with core rod near-lying mode tool cavity surface lower portion, and position under the cold medium channel of conformal heat is divided into supporting zone.
This characteristics towards the high-surface gloss traceless injection molding mould are: the core rod in the cold medium channel supported underneath of nearly conformal heat zone is provided with heat insulation gap or heat insulation path, and this heat insulation gap or heat insulation path are separated into medium channel zone and adiabatic zone with the supporting zone of core rod.
Described heat insulation gap or heat insulation path and the cold medium channel of conformal heat are pressed close to, and spacer equates.
Described heat transfer zone is the high conductivity material layer.
Described high conductivity material layer is high thermal conductivity steel CENA1 layer, duralumin, hard alumin ium alloy layer, copper or copper-based alloy material layer.
Described core rod is by as the upper mold core with mold cavity face in the zone of conducting heat, assemble by securing member as the medium channel backboard in medium channel zone with as three parts of adiabatic gripper shoe of adiabatic zone, be provided with the cold medium channel of conformal heat between upper mold core and the medium channel backboard, leave heat insulation gap between medium channel backboard and the adiabatic gripper shoe.
Described core rod is an overall structure, and drilling has the cold medium channel of conformal heat on the core rod of near-lying mode tool cavity surface lower portion, and drilling has heat insulation path on the core rod of the cold medium channel lower portion of conformal heat.
The present invention towards high-surface gloss traceless injection molding Mould design principle is: with the cover half core rod of original injection mold or dynamic model core rod be separated into the zone of conducting heat separately or all, medium channel is regional and three entity areas such as adiabatic zone, utilizes the heat transfer zone to improve heat transfer efficiency as far as possible; For improving this regional heat transfer efficiency, under the prerequisite that guarantees mechanical performance, reduce thickness as far as possible, make the cold medium channel of conformal heat as far as possible near the mold cavity surface; Heat insulation gap or heat insulation path that utilization is arranged under the cold medium channel of conformal heat come heat transfer capable of blocking zone directly to conduct heat to adiabatic zone, thereby reduce energy consumption.
The beneficial effect that the present invention is compared with the prior art is:
1) Fast Heating in the injection molding process and cool cycles thermal change concentrate on the mold cavity near surface, can significantly reduce thermal loss, reduce the injection moulding production cost.
2) because Fast Heating and cool cycles thermal change concentrate on the mold cavity near surface, can use lower heat medium temperature during heating, make, can save equipment investment for the performance indications requirement reduction of Rapid Thermal cool equipment.
The present invention is provided by the following drawings and embodiment in detail towards the concrete structure of high-surface gloss traceless injection molding mould.
Description of drawings
Fig. 1 is the structural representation towards high-surface gloss traceless injection molding mould embodiment 1;
Fig. 2 is the structural representation towards high-surface gloss traceless injection molding mould embodiment 2;
Fig. 3 is the structural representation towards high-surface gloss traceless injection molding mould embodiment 3.
The specific embodiment
Embodiment 1: as seen from Figure 1 this be a kind of package assembly towards the high-surface gloss traceless injection molding mould, it is by as the upper mold core with mold cavity face 12 in the zone of conducting heat, assemble by the securing member (not shown) as the medium channel backboard 3 in medium channel zone with as 4 three parts of adiabatic gripper shoe of adiabatic zone, be provided with the cold medium channel 5 of conformal heat between upper mold core 2 and the medium channel backboard 3, medium channel backboard 3 offers heat insulation gap 6 with adiabatic gripper shoe 4 faying faces.
Described upper mold core 2 with mold cavity face 1 adopts high thermal conductivity steel CENA1 to make, and the thickness of upper mold core 2 is 10mm, and the shape and the mold cavity face 1 of the cold medium channel 5 of conformal heat are consistent, and even with mold cavity face 1 distance, to guarantee uniformly transfer heat.
Described medium channel backboard 3 and adiabatic gripper shoe 4 all adopt and add hard steel S136H in advance and make.
Embodiment 2: this is a kind of integrally-built towards the high-surface gloss traceless injection molding mould for Fig. 2.
Described core rod is an overall structure, is the S136H material.It adopts depth drill cold medium channel 5 of drilling conformal heat near the core rod the mold cavity face, and drilling has heat insulation path 7 on the core rod below the cold medium channel 5 of conformal heat.Cold medium channel 5 of conformal heat and heat insulation path 7 with core rod be divided into the zone of conducting heat, medium channel is regional and adiabatic zone, that is: regional between the cold medium channel 5 of near-lying mode tool cavity surface 1 and conformal heat for conducting heat, between conformal cold medium channel 5 of heat and the heat insulation path 7 is the medium channel zone, is adiabatic zone between heat insulation path 7 and the mould bottom surface.
Embodiment 3: Fig. 3 be a kind of adopt that quick shaping makes towards the high-surface gloss traceless injection molding mould.Its structure and embodiment 1 or embodiment 2 are basic identical, and difference only is that it is made by fast shaping technology.
Fast shaping technology adopts 200 purpose 45# comminuted steel shots as matrix material, adopts 200 purpose copper powders as additional materials, and the effect of copper powder is to improve the regional thermal conductivity of conducting heat.
Fast shaping technology is made the concrete grammar towards the high-surface gloss traceless injection molding mould, may further comprise the steps:
One, sets up the CAD geometrical model that contains conformal medium channel and thermal insulation layer (heat insulation gap) to metal parts, and it is discrete to carry out layering: the slicing treatment of being finished STL product model by the software in the computer, after generating each layer data of product, the three-dimensional motion is carried out control operation;
Two, even on work top 8, smooth shakedown one deck thickness is the comminuted steel shot of 0.3mm;
Three, if there is the zone of conducting heat in current workpiece layer, need spread the copper powder that next layer thickness is about 0.2mm at this regional area, the part of a step pitch of less than (0.5mm) is supplied with comminuted steel shot;
Four, to shaped portion input argon gas;
Five, current workpiece layer is carried out sintering.
Six, lifting platform 9 downward (Z negative sense) moves a step pitch 0.5mm, repeated execution of steps two is to the process between the step 6, a complete core rod blank is piled in the whole seam of the locational powder of each layer entity in workpiece, gets final product through technologies such as a small amount of machining again.
Above content be in conjunction with concrete preferred implementation to further describing that the present invention did, can not assert that concrete enforcement of the present invention is confined to these explanations.For the general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, its framework form can be flexible and changeable, can the subseries product.Just make some simple deduction or replace, all should be considered as belonging to the scope of patent protection that the present invention is determined by claims of being submitted to.
Claims (6)
1, a kind of towards the high-surface gloss traceless injection molding mould, comprise: core rod, the core rod of near-lying mode tool cavity surface lower portion is provided with the cold medium channel of conformal heat, the cold medium channel of this conformal heat is divided into the zone of conducting heat with core rod near-lying mode tool cavity surface position, the cold medium channel of conformal heat below is divided into supporting zone, it is characterized in that:
The core rod in the cold medium channel supported underneath of nearly conformal heat zone is provided with heat insulation gap or heat insulation path, and this heat insulation gap or heat insulation path are separated into medium channel zone and adiabatic zone with the supporting zone of core rod.
2, according to claim 1 towards the high-surface gloss traceless injection molding mould, it is characterized in that:
Heat insulation gap or heat insulation path and the cold medium channel of conformal heat are pressed close to, and spacer equates.
3, according to claim 1 and 2 towards the high-surface gloss traceless injection molding mould, it is characterized in that:
Described heat transfer zone is the high conductivity material layer.
4, according to claim 3 towards the high-surface gloss traceless injection molding mould, it is characterized in that:
Described high conductivity material layer is high thermal conductivity steel CENA1 layer, duralumin, hard alumin ium alloy layer, copper or copper-based alloy material layer.
5, according to claim 4 towards the high-surface gloss traceless injection molding mould, it is characterized in that:
Described core rod is by as the upper mold core with mold cavity face in the zone of conducting heat, assemble by securing member as the medium channel backboard in medium channel zone with as three parts of adiabatic gripper shoe of adiabatic zone, be provided with the cold medium channel of conformal heat between upper mold core and the medium channel backboard, leave heat insulation gap between medium channel backboard and the adiabatic gripper shoe.
6, according to claim 4 towards the high-surface gloss traceless injection molding mould, it is characterized in that:
Described core rod is an overall structure, and drilling has the cold medium channel of conformal heat on the core rod of near-lying mode tool cavity surface lower portion, and drilling has heat insulation path on the core rod of the cold medium channel lower portion of conformal heat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009101050558A CN101480836A (en) | 2009-01-14 | 2009-01-14 | Mold for highlight non-trace injection molding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009101050558A CN101480836A (en) | 2009-01-14 | 2009-01-14 | Mold for highlight non-trace injection molding |
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| Publication Number | Publication Date |
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| CN101480836A true CN101480836A (en) | 2009-07-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2009101050558A Pending CN101480836A (en) | 2009-01-14 | 2009-01-14 | Mold for highlight non-trace injection molding |
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| CN (1) | CN101480836A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102179904A (en) * | 2011-03-24 | 2011-09-14 | 上海德奎久保田模具有限公司 | Integrated high-finish traceless injection molding die core and thermal treatment process thereof |
| CN102489431A (en) * | 2011-11-22 | 2012-06-13 | 杭州康得新机械有限公司 | Vertical film covering machine separate gluing structure |
| CN102590032A (en) * | 2012-02-28 | 2012-07-18 | 西南科技大学 | Viscous dissipation measuring device and measuring method |
| CN104802379A (en) * | 2014-01-28 | 2015-07-29 | 汉达精密电子(昆山)有限公司 | Rapid heat cycle molding system and molding die thereof |
| CN108672676A (en) * | 2018-07-17 | 2018-10-19 | 佛山市南海奔达模具有限公司 | die cooling structure |
| CN108950543A (en) * | 2018-08-13 | 2018-12-07 | 江西普热斯勒先进成型技术有限公司 | The thermally conductive wear-resisting endurance mold of one kind and its manufacturing process |
| CN109500379A (en) * | 2018-09-30 | 2019-03-22 | 福建工程学院 | A kind of buried tube type heats cooling mold and its manufacturing method |
| CN109571877A (en) * | 2019-01-26 | 2019-04-05 | 海安荣民汽车配件有限公司 | Rapid cooling formula hot runner automobile plastic part molding die |
| CN110732595A (en) * | 2018-07-20 | 2020-01-31 | 大众汽车有限公司 | Mould for hot forming and/or press hardening of sheet metal and method for producing cooling tool section |
Citations (4)
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| JPS5521234A (en) * | 1978-08-03 | 1980-02-15 | Dainippon Ink & Chem Inc | Formation method of hollow container |
| EP0483849A1 (en) * | 1990-11-02 | 1992-05-06 | CENTRO SVILUPPO SETTORI IMPIEGO S.r.l. | Process for surface upgrading of articles manufactured by blow molding or thermoforming |
| JPH04251728A (en) * | 1991-01-28 | 1992-09-08 | Sekisui Koki Seisakusho:Kk | Foam molding of synthetic resin |
| CN1144735A (en) * | 1995-04-05 | 1997-03-12 | 日本合成橡胶株式会社 | Molding apparatus and thermoplastic resin molding method |
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2009
- 2009-01-14 CN CNA2009101050558A patent/CN101480836A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5521234A (en) * | 1978-08-03 | 1980-02-15 | Dainippon Ink & Chem Inc | Formation method of hollow container |
| EP0483849A1 (en) * | 1990-11-02 | 1992-05-06 | CENTRO SVILUPPO SETTORI IMPIEGO S.r.l. | Process for surface upgrading of articles manufactured by blow molding or thermoforming |
| JPH04251728A (en) * | 1991-01-28 | 1992-09-08 | Sekisui Koki Seisakusho:Kk | Foam molding of synthetic resin |
| CN1144735A (en) * | 1995-04-05 | 1997-03-12 | 日本合成橡胶株式会社 | Molding apparatus and thermoplastic resin molding method |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102179904A (en) * | 2011-03-24 | 2011-09-14 | 上海德奎久保田模具有限公司 | Integrated high-finish traceless injection molding die core and thermal treatment process thereof |
| CN102179904B (en) * | 2011-03-24 | 2015-09-30 | 上海德奎久保田模具有限公司 | Integrated high-finish traceless injection molding die core and Technology for Heating Processing thereof |
| CN102489431A (en) * | 2011-11-22 | 2012-06-13 | 杭州康得新机械有限公司 | Vertical film covering machine separate gluing structure |
| CN102590032A (en) * | 2012-02-28 | 2012-07-18 | 西南科技大学 | Viscous dissipation measuring device and measuring method |
| CN102590032B (en) * | 2012-02-28 | 2014-04-16 | 西南科技大学 | Viscous dissipation measuring device and measuring method |
| CN104802379A (en) * | 2014-01-28 | 2015-07-29 | 汉达精密电子(昆山)有限公司 | Rapid heat cycle molding system and molding die thereof |
| CN108672676A (en) * | 2018-07-17 | 2018-10-19 | 佛山市南海奔达模具有限公司 | die cooling structure |
| CN110732595A (en) * | 2018-07-20 | 2020-01-31 | 大众汽车有限公司 | Mould for hot forming and/or press hardening of sheet metal and method for producing cooling tool section |
| CN110732595B (en) * | 2018-07-20 | 2021-09-24 | 大众汽车有限公司 | Mould for hot forming and/or press hardening of sheet metal and method for producing cooling tool section |
| CN108950543A (en) * | 2018-08-13 | 2018-12-07 | 江西普热斯勒先进成型技术有限公司 | The thermally conductive wear-resisting endurance mold of one kind and its manufacturing process |
| CN109500379A (en) * | 2018-09-30 | 2019-03-22 | 福建工程学院 | A kind of buried tube type heats cooling mold and its manufacturing method |
| CN109571877A (en) * | 2019-01-26 | 2019-04-05 | 海安荣民汽车配件有限公司 | Rapid cooling formula hot runner automobile plastic part molding die |
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Open date: 20090715 |