CN101602100A - The centrepin device that is used for die casting - Google Patents
The centrepin device that is used for die casting Download PDFInfo
- Publication number
- CN101602100A CN101602100A CNA2009101455821A CN200910145582A CN101602100A CN 101602100 A CN101602100 A CN 101602100A CN A2009101455821 A CNA2009101455821 A CN A2009101455821A CN 200910145582 A CN200910145582 A CN 200910145582A CN 101602100 A CN101602100 A CN 101602100A
- Authority
- CN
- China
- Prior art keywords
- shank
- centrepin
- center shank
- rear end
- core holder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
- B22D17/24—Accessories for locating and holding cores or inserts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
Provide a kind of being installed in to be used in the moveable die that comprises core and core holder forming the centrepin device hole, that be used for die casting at mould, it comprises the center shank that inserts in core holder and the core; Be installed in the lock screw of the rear end of inserting the center shank in the core holder; In core holder, place the spring between centrepin body and the lock screw; Cooler with the rear end that is installed in the center shank.The centrepin device prevents the bending owing to the load of the motlten metal of being introduced of center shank, and prevents that the center shank is damaged by its vibration.
Description
Technical field
The present invention relates to be used for centrepin (core pin) device of die casting, and relate more specifically to be assemblied on the mould in casting process, to form the centrepin device hole, that be used for die casting.
Background technology
Usually, die casting relates to the mould that is made of metal, handle through processing provides melt metal.
For such die casting, mould is fabricated to accurate dimension and need not repairs, make it have the good mechanical property that is used for large-scale production.The material that is used for die casting is for example zinc, aluminium, tin and copper, and mould uses air pressure, hydraulic pressure and hydraulic pressure manufacturing by casting device.
This mould that is used for die casting is made of metal, and comprises operation clamper and the fixed clamp device with die device.
Core is arranged on the operation clamper of die device, and supports the core holder of core to be assemblied in the rear portion of core, and core holder is connected to the action bars that is assemblied in the cylinder body base portion.
Herein, a plurality of centrepin devices 100 are assemblied on the core, so that form the hole in process of production.
As shown in fig. 1, centrepin device 100 comprise the center shank 110 that is inserted into core 101, be assemblied in the spring 113 between lock screw 111, centering shank 110 and the lock screw 111 on the core holder 103 and penetrate lock screw 111 and the center of insertion shank 110 in cooler 115 to its cooling water supply.
Because the technical pattern of centrepin device 100 known (for example, korean patent application 10-2005-0113236 number disclosed), its detailed description will be omitted.
Yet, since according to the centrepin device of prior art by the spring absorbing load to prevent because melt metal causes the centrepin bending, and this moment, the center shank is moved forward and backward by spring, and by the front/rear mobile generation vibrations in assembling cooler process that cause, so cause damaging the problem of cooler.
In addition, when cooler was damaged by front/rear the moving of center shank, the product that is produced worsened owing to the leakage of cooling agent, and productivity ratio reduces.
Disclosed above information only is used to strengthen the understanding to background of the present invention in this background technology part, so it may comprise, and not constitute be the information of the known prior art of these domestic those of ordinary skills.
Summary of the invention
The present invention is devoted to provide a kind of centrepin device that is used for die casting, it has the following advantages, promptly prevent to be used for product form the hole the center shank since motlten metal in mould load and bending, and prevent that the center shank is owing to its vibration is damaged, thereby increase the life cycle of cooler, and boost productivity.
Be installed in the moveable die that comprises core and core holder according to the centrepin device that is used for die casting of exemplary embodiment of the present invention and be used for forming the hole at mould, it can comprise:
Penetrate core holder and core, and have along the center shank of the circular support of its periphery, wherein its front end is outstanding forward from the front portion of core, and its rear end is outstanding backward from the rear portion of core holder; Be installed in the lock screw of inserting the shank rear end, center in the core holder; In core holder, place the spring between centrepin body and the lock screw; With the cooler that is installed in shank rear end, center with the state that inserts in the shank of center so that cooling center shank.
The center shank can have the circulation canal on its length direction, makes cooler insert wherein, and forms screw thread in its back-end.
Lock screw can have through hole, makes the center shank insert wherein, and forms screw thread in its forward direction periphery, so that be connected to core holder by screw.
Lock screw also can be included in the insertion groove of its rear end, and the instrument that makes is installed on the core holder.
Cooler can comprise: be connected to the rear end of center shank and wherein have the erection joint of oil circuit by screw; Integral body is connected to the rear end of erection joint and is communicated with so that receive the cooling agent supply pipe joint of cooling agent with coolant pump; Integral body is connected to the cooling agent supply pipe of cooling agent supply pipe joint, and its front portion from erection joint penetrates oil circuit, and inserts in the shank of center so that to center shank supply coolant; Be connected to the coolant discharge pipe joint of erection joint rear end with integral body, it is communicated with oil circuit so that discharge by the cooling agent supply pipe provides inner and be used to the cooling agent that cools off subsequently to the center shank.
Therefore, if in handling, use the centrepin device that is used for die casting, then can prevent center shank bending by the mode that absorbs the load of motlten metal via spring according to exemplary embodiment of the present invention according to the die casting of exemplary embodiment of the present invention.
From aforementioned content as seen, by preventing that the damage of cooler is prolonged its life-span, and boost productivity by the substandard products that leakage caused of cooling agent by farthest reducing when cooler is damaged.
Description of drawings
Fig. 1 is the centrepin schematic representation of apparatus that is used for die casting that shows according to prior art.
Fig. 2 is the cutaway view according to the centrepin device that is used for die casting of exemplary embodiment of the present invention.
Fig. 3 is the decomposition diagram that shows according to the centrepin device that is used for die casting of exemplary embodiment of the present invention.
Fig. 4 illustrates each operating procedure according to the centrepin device that is used for die casting of exemplary embodiment of the present invention.
The specific embodiment
Describe exemplary embodiment of the present invention in detail hereinafter with reference to accompanying drawing.
Fig. 2 is the cutaway view according to the centrepin device that is used for die casting of exemplary embodiment of the present invention, and Fig. 3 is the decomposition diagram according to the centrepin device that is used for die casting of exemplary embodiment of the present invention.
With reference to accompanying drawing, be assemblied in the inside of the moveable die 7 that comprises core 3 and core holder 5 according to the centrepin device 1 that is used for die casting of exemplary embodiment of the present invention, in order in product, to form the hole.
Can prevent to be used for forming center shank bending in hole owing to the load of the motlten metal that flows into cavity body of mould at product according to the centrepin device 1 that is used for die casting of exemplary embodiment of the present invention, and prevent that the center shank that moves freely is owing to the vibration of center shank is damaged, thereby can increase the life cycle of cooler, and boost productivity.
As shown in Fig. 2 and Fig. 3, comprise center shank 10, lock screw 20, spring 30 and cooler 40 according to the centrepin device 1 that is used for die casting of exemplary embodiment of the present invention.
Herein, center shank 10 has the peripheral passage 11 along its length direction, makes cooler 40 to be inserted into wherein, and center shank 10 has the circular support 13 along its periphery.
In addition, form screw thread, make cooler 40 can be assemblied on the center shank 10 in the rear end of center shank 10.
In the case, through hole 21 is formed on the inside of lock screw 20, makes center shank 10 to be inserted into wherein.
In addition, lock screw 20 is being assembled under the situation of core holder 5, is being formed with insertion groove 23, making instrument 50 to be placed in one.
At this moment, spring 30 can be for example a kind of helical spring, make an end of spring 30 be supported by the circular support 13 of center shank 10, and the other end of spring 30 is supported by lock screw 20.
As exemplary embodiment of the present invention, cooler 40 inserts from the rear end of centrepin body 10 wherein with cooling center shank 10, and comprises erection joint 41, cooling agent supply pipe joint (nipple) 43, cooling agent supply pipe 45 and coolant discharge pipe joint 47.
At first, in erection joint 41, form oil circuit 42, and the front end of erection joint 41 is by the center that the is threaded io shank 10 of the rear end of screw by being formed on center shank 10.
In addition, cooling agent supply pipe joint 43 integral body are connected to the rear end of erection joint 41.
Cooling agent supply pipe joint 43 is connected to the cooling medium pump (not shown) to receive cooling agent.
In addition, the cooling agent supply pipe 45 of insertion peripheral passage 11 is communicated with cooling agent supply pipe joint 43.
Cooling agent supply pipe 45 is connected to cooling agent supply pipe joint 43 so that cooling agent supply pipe 45 penetrates the state integral body of oil circuit 42.
Such cooling agent supply pipe 45 is by providing the cooling agent that receives from cooling agent supply pipe joint 43 to cool off center shank 10 to center shank 10 inside in casting process.
Coolant discharge pipe joint 47 integral body are connected to the rear end of erection joint 41.
Coolant discharge pipe joint 47 is discharged the cooling agent that is used to cool off by being communicated with oil circuit 42.
Below, with the assembling/operating process that describes in detail according to the centrepin device 1 of exemplary embodiment of the present invention.
Fig. 4 illustrates each operating procedure according to the centrepin device that is used for die casting of exemplary embodiment of the present invention.
At first, as shown in the S1 of Fig. 4, center shank 10 is inserted in the rear end and core holder 5 of moveable die 7, make center shank 10 penetrate core holder 5 and core 3.
In the case, the front end of center shank 10 is outstanding in a certain direction with predetermined longitudinal separation from the rear end of core holder 5.
Subsequently, as shown in the S2 of Fig. 4, spring 30 is inserted into the rear end of center shank 10.
When finishing the insertion of spring 30, as shown in the S3 of Fig. 4, after lock screw 20 is inserted into core holder 5, as shown in the S4 of Fig. 4, lock screw 20 is fixedly connected to core holder 5 by instrument 50.
In the case, grab retaining projection 51 in the front end formation of instrument 50, with corresponding with the insertion groove 23 in the lock screw 20.
In addition, on instrument 50, form the patchhole 53 that is provided with corresponding to center shank 10, so that when assembling lock screw 20, prevent the interference of center shank 10.
That is to say, after grabbing retaining projection 51 and insertion groove 23 in the lock screw 20 engages,,, and lock screw 20 is connected to core holder 5 by instrument 50 spin locking screws 20 by making the rear end of center shank 10 be inserted under the state of patchhole 53.
When finishing the assembling of lock screw 20, as shown in the S5 of Fig. 4, the cooling agent supply pipe 45 in the cooler 40 is inserted into peripheral passage 11.
Then, finish the assembling of centrepin device 1 by the rear end that erection joint 41 is connected to center shank 10.
At casting process, can prevent 10 bendings of center shank by the mode that absorbs the load of motlten metals via spring 30 according to the centrepin device 1 that is used for die casting of exemplary embodiment of the present invention.
Result as aforementioned content, the direct transmission of motlten metal can reduce because of the extension of minister's degree thereafter the impulsive force of cooler 40, and cooler 40 is installed is in its back-end made under the load of motlten metal center shank 10 be minimized for the vibration of cooler 40.
In addition, the damage to cooler 40 is reduced the long-life that it causes cooler 40 by the impulsive force that minimizes 10 pairs of coolers 40 of center shank.
Therefore, if use according to the centrepin device that is used for die casting of exemplary embodiment of the present invention, then can prevent 10 bendings of center shank by the mode that absorbs the load of motlten metals via spring 30 in press casting procedure.
From aforementioned content as seen, can be by preventing from the damage of cooler 40 is prolonged the life-span of cooler 40, and boost productivity by the substandard products that leakage caused of cooling agent by farthest reducing when cooler 40 is damaged.
Although in conjunction with being regarded as practical exemplary embodiment at present the present invention has been described, should be appreciated that to the invention is not restricted to the disclosed embodiments that but opposite, it is intended to cover essence and interior various remodeling and the equivalent of scope that is included in claims.
Claims (5)
1. centrepin device that is used for die casting, it is installed in the moveable die that comprises core and core holder and is used for forming the hole at mould, and described centrepin device comprises:
The center shank, it inserts in described core holder and the described core, make that the front end of described center shank is outstanding forward from described core, and its rear end is outstanding backward from described core holder, and its middle part comprises the circular support that forms along its periphery;
Be installed in the lock screw of the described rear end of inserting the described center shank in the described core holder;
In described core holder, place the spring between described center shank and the described lock screw; With
To insert in the shank of described center so that cool off the cooler that the state of described center shank is installed in the described rear end of described center shank.
2. the centrepin device that is used for die casting as claimed in claim 1, wherein said center shank have to form along its length direction makes described cooler insert peripheral passage wherein, and forms screw thread in the rear end of described center shank.
3. the centrepin device that is used for die casting as claimed in claim 1, wherein said lock screw have described center shank insertion through hole wherein, and form screw thread in the periphery of described lock screw, so that be connected to described core holder by screw.
4. the centrepin device that is used for die casting as claimed in claim 3 wherein forms insertion groove in the rear end of described lock screw, and the instrument that makes is installed on the described core holder.
5. the centrepin device that is used for die casting as claimed in claim 1, wherein said cooler comprises:
Front portion and the erection joint that is formed at oil circuit wherein with the rear end that is threaded io described center shank;
Integrally be connected to the rear end of described erection joint, and be communicated with so that receive the cooling agent supply pipe joint of cooling agent with coolant pump;
Integrally be connected to the cooling agent supply pipe of described cooling agent supply pipe joint, its front portion from described erection joint penetrates described oil circuit, and inserts in the shank of described center so that to described center shank supply coolant; With
Integrally be connected to the coolant discharge pipe joint of the described rear end of described erection joint, it is communicated with described oil circuit so that the cooling agent that provides to described center shank inside and be used to subsequently cool off by described cooling agent supply pipe is provided.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020080054804 | 2008-06-11 | ||
| KR1020080054804A KR101048123B1 (en) | 2008-06-11 | 2008-06-11 | Core pin unit for die casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101602100A true CN101602100A (en) | 2009-12-16 |
Family
ID=41413694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009101455821A Pending CN101602100A (en) | 2008-06-11 | 2009-06-03 | The centrepin device that is used for die casting |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20090308563A1 (en) |
| KR (1) | KR101048123B1 (en) |
| CN (1) | CN101602100A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104923760A (en) * | 2014-01-03 | 2015-09-23 | 宁波埃利特模具制造有限公司 | Aluminum alloy die-casting die capable of reducing die covering force |
| CN105983679A (en) * | 2014-10-14 | 2016-10-05 | 现代自动车株式会社 | Core pin for preventing molten metal from flowing into pipe and casting device using the same |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8360134B2 (en) * | 2010-10-11 | 2013-01-29 | Ford Global Technologies, Llc | Method and system for extracting heat from metal castings and molds |
| KR101646358B1 (en) * | 2014-10-20 | 2016-08-08 | 현대자동차주식회사 | Die-casting method |
| KR101786229B1 (en) * | 2015-12-01 | 2017-11-16 | 현대자동차주식회사 | Mold apparatus for high pressure casting |
| CN107661969A (en) * | 2016-07-27 | 2018-02-06 | 华孚精密金属科技(常熟)有限公司 | Enter pin fixed structure |
| KR102586918B1 (en) * | 2018-10-05 | 2023-10-10 | 현대자동차주식회사 | a high pressure die casting within aluminum pipe and method thereof |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4275864A (en) * | 1980-06-12 | 1981-06-30 | Richards Les W | Method and system for cooling a mold |
| US4655280A (en) * | 1984-03-26 | 1987-04-07 | Fuso Keigokin Co., Ltd. | Die cooling pipe |
| JPH072132Y2 (en) * | 1990-03-31 | 1995-01-25 | 株式会社アーレスティ | Core pin for mold |
| KR19990015157U (en) * | 1997-10-13 | 1999-05-15 | 윤종용 | Product take-out device of injection mold for injection molding |
| US6145578A (en) | 1998-08-17 | 2000-11-14 | Wayne C. Zearbaugh | Spring unit for core pin assembly |
| KR20070016257A (en) * | 2005-08-02 | 2007-02-08 | 현대자동차주식회사 | core fin for die casting |
| KR100680736B1 (en) * | 2005-11-25 | 2007-02-09 | 현대자동차주식회사 | Core pin mounting means of high pressure casting metal mold |
| KR100884070B1 (en) * | 2006-11-21 | 2009-02-19 | 현대자동차주식회사 | Head face slide core of diecating mold for cylinder block |
-
2008
- 2008-06-11 KR KR1020080054804A patent/KR101048123B1/en active IP Right Grant
-
2009
- 2009-05-08 US US12/437,702 patent/US20090308563A1/en not_active Abandoned
- 2009-06-03 CN CNA2009101455821A patent/CN101602100A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104923760A (en) * | 2014-01-03 | 2015-09-23 | 宁波埃利特模具制造有限公司 | Aluminum alloy die-casting die capable of reducing die covering force |
| CN104923760B (en) * | 2014-01-03 | 2016-11-30 | 宁波埃利特模具制造有限公司 | A kind of aluminum alloy die-casting die reducing Bao Moli |
| CN105983679A (en) * | 2014-10-14 | 2016-10-05 | 现代自动车株式会社 | Core pin for preventing molten metal from flowing into pipe and casting device using the same |
| CN105983679B (en) * | 2014-10-14 | 2020-05-12 | 现代自动车株式会社 | Center pin for preventing molten metal from flowing into pipe and casting device using the same |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20090128841A (en) | 2009-12-16 |
| US20090308563A1 (en) | 2009-12-17 |
| KR101048123B1 (en) | 2011-07-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20091216 |