CN201776886U - Injection mold core with suction-exhaust and quick-cooling functional structure - Google Patents

Injection mold core with suction-exhaust and quick-cooling functional structure Download PDF

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Publication number
CN201776886U
CN201776886U CN2010205403665U CN201020540366U CN201776886U CN 201776886 U CN201776886 U CN 201776886U CN 2010205403665 U CN2010205403665 U CN 2010205403665U CN 201020540366 U CN201020540366 U CN 201020540366U CN 201776886 U CN201776886 U CN 201776886U
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CN
China
Prior art keywords
core
suction
heat conduction
profile
conduction pin
Prior art date
Application number
CN2010205403665U
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Chinese (zh)
Inventor
华宏伟
Original Assignee
宁海瑞元模塑有限公司
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Publication date
Application filed by 宁海瑞元模塑有限公司 filed Critical 宁海瑞元模塑有限公司
Priority to CN2010205403665U priority Critical patent/CN201776886U/en
Application granted granted Critical
Publication of CN201776886U publication Critical patent/CN201776886U/en

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Abstract

The utility model provides an injection mold core with a suction-exhaust and quick-cooling functional structure, which comprises a core body (1), a breathable surface (2), a suction-exhaust passage (3) and a heat-conducting pin (4). The utility model adopts high-thermoconductivity beryllium-copper material to produce the core body, the breathable surface made of porous breathable steel is firmly inlaid in the top of the core body, and the suction-exhaust passage communicated with an air passage of a mold is arranged in the core body; the technical scheme in which the heat-conducting pin arranged at the bottom of the core body is directly inserted into a cooling water passage of the mold and cooled overcomes the problems and defects of the molding of small-diameter deep-cavity injection-molded products in the part art, i.e., low qualification rate, high cost and poor product quality consistency, and by structurally increasing the cooling speed of the core body of the injection mold core and improving the suction and exhaust conditions of the injection mold core, the molding of small-diameter deep-cavity injection-molded products achieves the purposes of increasing the qualification rate, reducing the cost and ensuring product quality consistency.

Description

A kind of injection mold core with suction and discharge, quick cooling function structure
Technical field
The utility model relates to the core structure of injection mold, specifically is meant a kind of injection mold core with suction and discharge, quick cooling function structure that is applied on the injection mold dynamic model part.
Background technology
Core is the member of the moulding injection-molded item back side or inner profile in the injection mold, and the core of prior art is made with steel, and self does not possess suction and discharge, refrigerating function; During injection moulding, the air in the chamber that is surrounded by dynamic mould core and cover half die cavity is discharged by the die joint of core and die cavity; During ejection device, be coated on the goods on the core, suck air and the demoulding by the slit that when pushing tow is dynamic, forms with the core pattern draft; The cooling of core is by being arranged on the cooling water channel cooling in moving platen and the core.Yet the core that is used for moulding small-diameter deep chamber injection-molded item because volume is narrow and small, can't be provided with cooling water channel, can only rely on the heat conduction of steel self, slowly cools off by the moving platen that is provided with cooling water channel, cause moulding production because of etc. inefficiency to be cooled; In addition, exhaust, the inspiratory dyspnea of the dark top of chamber of goods position very easily produce air retention phenomenon during the moulding injection, and goods and core produced the vacuum coater phenomenon when demoulding ejected; In the mould that a mould has more, it is bad that the bad and vacuum coater demoulding that all can have the part goods to produce the scarce material of vapour lock in the goods of every mold forming damages, and makes the quality of goods be difficult to be consistent, and the qualification rate of goods is low, and integrated cost is high.Therefore, because the small-diameter deep chamber core cooling of prior art is slow, suction and discharge are not smooth, make the injection-molded item moulding of prior art small-diameter deep chamber exist qualification rate low, the problems and shortcomings of cost height, product property uniformity difference.
Summary of the invention
Problems and shortcomings at above-mentioned prior art existence, the utility model adopts by the beryllium copper material of high heat conduction and makes the core body, fixedly inlay the ventilative profile of making by the porous breathable steel at the top of core body, in core body inside the suction air flue is set, the upper end of suction air flue communicates with ventilative profile, the lower end of suction air flue be arranged on the airway that moving die insert and moving platen joint portion communicate with atmosphere and communicate; In the bottom of core body the heat conduction pin is set, the heat conduction pin directly inserts in the cooling water channel that is arranged in the moving platen, technical scheme by the direct cooling type core body of cooling water, a kind of injection mold core with suction and discharge, quick cooling function structure is provided, be intended to by improving the core body from structure cooling velocity, improve the suction and discharge situation, make small-diameter deep chamber molding process of injection reach the raising qualification rate, reduce cost, guarantee the conforming purpose of product property.
The purpose of this utility model is achieved in that a kind of injection mold core with suction and discharge, quick cooling function structure, be made of core body, ventilative profile, suction air flue, heat conduction pin, wherein: described core body is body and appearance profile and inner body of goods and the identical column beryllium copper matter core body of inner surface profile; The top of core body fixedly is inlaid with the ventilative profile of being made by the porous breathable steel, appearance profile and goods top inner surface profile are coincide; The bottom of core body be provided with downward protrusion, diameter is less than heat conduction pin core scapus face size, that the step cutting pattern cylinder constitutes; The inside of core body is provided with the upper end and communicates with described ventilative profile, the suction air flue of the circular hole formation that the lower end communicates with the edge of core body bottom.
Mutual alignment during application and annexation
Core body fixed in position is provided with the airway that communicates with atmosphere at moving die insert and moving platen joint portion in using the moving die insert of mould, the lower end of the suction air flue of core body is communicated with airway; The circle hole shape cooling water channel that is specifically designed to cooling heat conduction pin is set in the moving platen of the heat conduction pin bottom of core body, and the diameter of cooling water channel is greater than the heat conduction pin, and the lower end of heat conduction pin is inserted among the cooling water channel.
Operation principle
During the moulding injection, retention is discharged through airway from ventilative profile, the suction air flue of core body at the air of the dark top of chamber of goods position, has eliminated the goods vapour lock and has lacked the bad origin cause of formation of material;
When the demoulding ejected, air outside between the suction air flue of core body, ventilative profile induction type core body and goods, had been eliminated the bad origin cause of formation of goods vacuum coater demoulding damage from airway;
During the moulding cooling, the heat of core body is directly taken away by the cooling water exchange of the cooling water channel of flowing through by the heat conduction pin that inserts in the cooling water channel, has avoided the slow problem of indirect thermal conduction of velocity, thereby has improved cooling velocity and heat exchanger effectiveness; In addition, make the core body, help the further raising of core body cooling velocity and heat exchanger effectiveness with the beryllium copper material of high heat conduction.
Above-mentioned, the utility model adopts by the beryllium copper material of high heat conduction and makes the core body, fixedly inlay the ventilative profile of making by the porous breathable steel at the top of core body, in core body inside the suction air flue is set, the upper end of suction air flue communicates with ventilative profile, the lower end of suction air flue be arranged on the airway that moving die insert and moving platen joint portion communicate with atmosphere and communicate; In the bottom of core body the heat conduction pin is set, the heat conduction pin directly inserts in the cooling water channel that is arranged in the moving platen, technical scheme by the direct cooling type core body of cooling water, having overcome the injection-molded item moulding of prior art small-diameter deep chamber exists qualification rate low, the cost height, the problems and shortcomings of product property uniformity difference, what provided a kind ofly has suction and discharge, the injection mold core of quick cooling function structure, by improve the cooling velocity of core body from structure, improve the suction and discharge situation, make small-diameter deep chamber molding process of injection reach the raising qualification rate, reduce cost, guarantee the conforming purpose of product property.
Description of drawings
Fig. 1 is a kind of injection mold core with suction and discharge, quick cooling function structure of the present utility model, the position in using mould and the cross-sectional schematic of structure;
Fig. 2 be among Fig. 1 A portion draw enlarged drawing, be a kind of structural representation of the present utility model with injection mold core of suction and discharge, quick cooling function structure;
Below in conjunction with the embodiment in the accompanying drawing the utility model is described in further detail, but should not be construed as any restriction of the present utility model.
Among the figure: core body 1, ventilative profile 2, suction air flue 3, heat conduction pin 4, airway 01, cooling water channel 02, moving die insert 03, moving platen 04, goods 05.
The specific embodiment
Consult Fig. 1~Fig. 2, a kind of injection mold core of the present utility model with suction and discharge, quick cooling function structure, be made of core body 1, ventilative profile 2, suction air flue 3, heat conduction pin 4, wherein: described core body 1 is body and appearance profile and inner body of goods and the identical column beryllium copper matter core body of inner surface profile; The top of core body fixedly is inlaid with the ventilative profile of being made by the porous breathable steel, appearance profile and goods top inner surface profile are coincide 2; The bottom of core body be provided with downward protrusion, diameter is less than heat conduction pin 4 core scapus face size, that the step cutting pattern cylinder constitutes; The inside of core body is provided with the upper end and communicates with described ventilative profile 2, the suction air flue 3 of the circular hole formation that the lower end communicates with the edge of core body bottom.
Mutual alignment during application and annexation
Core body 1 fixed in position is provided with the airway 01 that communicates with atmosphere at moving die insert 03 and moving platen 04 joint portion in using the moving die insert 03 of mould, the lower end of the suction air flue 3 of core body 1 is communicated with airway 01; The circle hole shape cooling water channel 02 that is specifically designed to cooling heat conduction pin 4 is set in the moving platen 04 of heat conduction pin 4 bottoms of core body 1, and the diameter of cooling water channel 02 is greater than heat conduction pin 4, and the lower end of heat conduction pin 4 is inserted among the cooling water channel 02.
Operation principle
During the moulding injection, retention is discharged through airway 01 from ventilative profile 2, the suction air flue 3 of core body 1 at the air of goods 05 dark top of chamber position, has eliminated goods 05 vapour lock and has lacked the bad origin cause of formation of material;
When the demoulding ejected, air outside between the suction air flue 3 of core body 1, ventilative profile 2 induction type core bodys 1 and goods 05, had been eliminated the bad origin cause of formation of goods 05 vacuum coater demoulding damage from airway 01;
During the moulding cooling, the heat of core body 1 is directly taken away by the cooling water exchange of the cooling water channel 02 of flowing through by the heat conduction pin 4 that inserts in the cooling water channel 02, has avoided the slow problem of indirect thermal conduction of velocity, thereby has improved cooling velocity and heat exchanger effectiveness; In addition, make core body 1, help the further raising of core body 1 cooling velocity and heat exchanger effectiveness with the beryllium copper material of high heat conduction.

Claims (2)

1. injection mold core with suction and discharge, quick cooling function structure, be made of core body (1), ventilative profile (2), suction air flue (3), heat conduction pin (4), it is characterized in that: described core body (1) is body and appearance profile and inner body of goods and the identical column beryllium copper matter core body of inner surface profile; The top of core body fixedly is inlaid with the ventilative profile of being made by the porous breathable steel, appearance profile and goods top inner surface profile are coincide (2); The bottom of core body be provided with downward protrusion, diameter is less than heat conduction pin (4) core scapus face size, that the step cutting pattern cylinder constitutes; The inside of core body is provided with the upper end and communicates with described ventilative profile (2), the suction air flue (3) of the circular hole formation that the lower end communicates with the edge of core body bottom.
2. a kind of injection mold core according to claim 1 with suction and discharge, quick cooling function structure, it is characterized in that: position during application and annexation are, core body (1) fixed in position is in the moving die insert (03) of using mould, the airway (01) that communicates with atmosphere is set in moving die insert (03) and moving platen (04) joint portion, the lower end of the suction air flue (3) of core body (1) is communicated with airway (01); The circle hole shape cooling water channel (02) that is specifically designed to cooling heat conduction pin (4) is set in the moving platen (04) of heat conduction pin (4) bottom of core body (1), the diameter of cooling water channel (02) is greater than heat conduction pin (4), and the lower end of heat conduction pin (4) is inserted among the cooling water channel (02).
CN2010205403665U 2010-09-15 2010-09-15 Injection mold core with suction-exhaust and quick-cooling functional structure CN201776886U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010205403665U CN201776886U (en) 2010-09-15 2010-09-15 Injection mold core with suction-exhaust and quick-cooling functional structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010205403665U CN201776886U (en) 2010-09-15 2010-09-15 Injection mold core with suction-exhaust and quick-cooling functional structure

Publications (1)

Publication Number Publication Date
CN201776886U true CN201776886U (en) 2011-03-30

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102001161A (en) * 2010-09-15 2011-04-06 宁海瑞元模塑有限公司 Injection mold core with air suction, discharge and rapid cooling functional structure
CN102672935A (en) * 2012-05-25 2012-09-19 东莞市华立实业股份有限公司 Automatic production device for bumper strips
CN102689429A (en) * 2012-05-25 2012-09-26 东莞市华立实业股份有限公司 Automatic production process for bumper strips
CN102848527A (en) * 2012-09-21 2013-01-02 东泰精密模具(苏州)有限公司 Die
CN104842516A (en) * 2015-06-04 2015-08-19 东莞宏光光学制品有限公司 Compound exhaust mould structure

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102001161A (en) * 2010-09-15 2011-04-06 宁海瑞元模塑有限公司 Injection mold core with air suction, discharge and rapid cooling functional structure
CN102001161B (en) * 2010-09-15 2014-07-23 宁海瑞元模塑有限公司 Injection mold core with air suction, discharge and rapid cooling functional structure
CN102672935A (en) * 2012-05-25 2012-09-19 东莞市华立实业股份有限公司 Automatic production device for bumper strips
CN102689429A (en) * 2012-05-25 2012-09-26 东莞市华立实业股份有限公司 Automatic production process for bumper strips
CN102672935B (en) * 2012-05-25 2014-08-13 东莞市华立实业股份有限公司 Automatic production device for bumper strips
CN102689429B (en) * 2012-05-25 2014-10-15 东莞市华立实业股份有限公司 Automatic production process for bumper strips
CN102848527A (en) * 2012-09-21 2013-01-02 东泰精密模具(苏州)有限公司 Die
CN104842516A (en) * 2015-06-04 2015-08-19 东莞宏光光学制品有限公司 Compound exhaust mould structure

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Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee

Owner name: NINGBO RUIYUAN MOULD + PLASTIC CO., LTD.

Free format text: FORMER NAME: NINGHAI RUIYUAN MOULD + PLASTIC CO., LTD.

CP03 Change of name, title or address

Address after: 315600, No. 25, metalworking Road, Taoyuan street, Ninghai County, Zhejiang Province

Patentee after: Ningbo Ruiyuan Mould & Plastics Co., Ltd.

Address before: 315600 No. 2, Jinxing Road, Taoyuan street, Ninghai County, Zhejiang Province

Patentee before: Ninghai Ruiyuan Molding Co., Ltd.

RGAV Abandon patent right to avoid regrant
AV01 Patent right actively abandoned

Granted publication date: 20110330

Effective date of abandoning: 20140723