CN106513584A - Device and method for automatically removing cold core burrs - Google Patents
Device and method for automatically removing cold core burrs Download PDFInfo
- Publication number
- CN106513584A CN106513584A CN201610940173.0A CN201610940173A CN106513584A CN 106513584 A CN106513584 A CN 106513584A CN 201610940173 A CN201610940173 A CN 201610940173A CN 106513584 A CN106513584 A CN 106513584A
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- core
- burr
- die joint
- cavity
- stem
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/18—Finishing
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Devices For Molds (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The invention discloses a device and a method for automatically removing cold core burrs. The device comprises a cavity formed by a lower die block, and the upper part of the cavity shrinks, forming an opening. The edge of the cavity opening is provided with a parting surface core repairing plate, the inner part of the cavity is provided with an adaptive core connecting column, and the parting surface core repairing plate horizontally extends at the opening part and wraps the two side surfaces of a sand core. When the sand core falls into the cavity, two-side parting surface burrs are scraped off by the parting surface core repairing plate. The adaptive core connecting column is coaxially arranged with a lower ejector rod, and the adaptive core connecting column is matched with the surface of the sand core at the ejector rod part. When the sand core falls, ejector rod burrs on the bottom surface of the sand core are fractured by the adaptive core connecting column. After the parting surface burrs and the ejector rod burrs are removed, core repairing action is done again until the qualified sand core is obtained. When the cold core burrs are removed by adopting the device and the method, the burrs can be effectively removed, burr leakage and sand core fracture phenomena cannot occur, and the production efficiency is increased.
Description
Technical field
The present invention relates to the core repair device in a kind of casting of automobile engine cylinder-body, and in particular to a kind of cold core burr from
Dynamic removal device and its method.
Background technology
Automobile engine cylinder-body is typical complex thin-wall ironcasting, when casting pig small displacement engine cylinder body is produced,
Need to produce various loam cores to pour into foundry goods using cold core process, just as playing with building blocks, with various loam cores and close-over shape
Into the profile of foundry goods, molten iron enters die cavity by running gate system, and cylinder blank is formed after cooling, and any loam core includes casting
The shape and technique core print two parts of part, its medium casting outline portion core surface requirements are very high, do not allow unnecessary shape occur
Shape, such as：Push rod burr, die joint burr, pressure sand bar burr etc..
During production cylinder body core, due to the yield and efficiency requirements of product, all using automatization's core manufacturing craft,
Employee can not have found the push rod burr positioned at lower core box region, often could find after foundry goods molding, cause to scrap foundry goods,
There is the leakage waste product caused due to push rod burr, originally we can only increase the core box maintenance replacing of push rod/top stem casing, cost
It is higher, and yet suffer from such phenomenon.Accordingly, it would be desirable to remove the burr on core surface, but there is problems with：
1st, as core is tiny, and it is cantilever beam structure, in order to reduce the disconnected core ratio of depanning, we can only adjusting process
Parameter, improves sand core strength, the method that push rod burr can only adopt artificial removal, but has many push rods on a core, and one
Multiple cores are done in individual circulation, and productive temp is shorter, and workman is not timely completed the work of deburring.
2nd, as profile is curved surface, some position burrs can not manually be removed totally, however it remains casting wasted product phenomenon.
3rd, burr is repaiied because workman the factor such as forgets, relieves and causes the core having leak.
Accordingly, it would be desirable to a kind of new technical scheme is solving above-mentioned technical problem.
The content of the invention
To solve the deficiencies in the prior art, it is an object of the invention to propose a kind of going automatically for efficient cold core burr
Except devices and methods therefor, flash removed can be effectively removed, burr will not be produced and omitted and core phenomenon of rupture.
In order to realize above-mentioned target, the present invention is adopted the following technical scheme that：A kind of cold core burr automatically removes device, should
Device includes the cavity formed by lower module, and the cavity top is tightened up to form oral area, set in the cavity mouth rim
Die joint core finishing piece is equipped with, and cavity inside is provided with and stem stem is connect with type, and the die joint core finishing piece is horizontal-extending in the oral area
Core two sides are surrounded, die joint burr in both sides is struck off by the die joint core finishing piece when cavity is fallen under core；It is described with type
Connect stem stem to be coaxially disposed with lower push rod, described to connect core surface at stem stem and push rod with type and match, core bottom when core falls
The push rod burr in face is connect stem stem squeeze crack with type by described.
Preferably, the die joint core finishing piece is less than core die joint burr horizontal direction with the gap of core die joint
Length.Gap is little so that the core with die joint burr in dropping process, by self gravitation and die joint core finishing piece
Effect, can effectively strike off core die joint burr.
Preferably, it is described to connect stem stem radius more than push rod radius 2-4mm with type.
More preferably, it is described to connect stem stem radius more than push rod radius 3mm with type.Stem stem radius is connect more than push rod radius with type,
The push rod burr of one week at the push rod position of core bottom surface can be contained, large-area push rod burr is effectively removed.
Preferably, after falling cavity under the core, the die joint core finishing piece is higher than core die joint 1-4mm.It is more excellent
Ground, is 2-3mm.Now the typing core finishing piece of both sides can play a protective role, and prevent lower section push rod burr and connect stem stem with type
Core play during extruding, so as to produce fracture.
The invention allows for a kind of cold core burr automatic removal method, comprises the following steps：
(1) core 3 is rejected upper core box, falls to the cavity for automatically removing device in the presence of 3 self gravitation of core；
(2), in dropping process, 3 both sides die joints burr 5 of core is struck off by die joint core finishing piece 1；
(3) in the presence of the gravity and acceleration of core 3, the push rod burr 6 of 3 bottom surface of core is connect 2 squeeze cracks with type；
(4) stem stem 2 is connect with type and up eject core 3, repeat step (2), (3), until obtaining qualified core.
What the present invention proposed a kind of cold core burr automatically removes devices and methods therefor, compared to prior art, of the invention
It is beneficial in that：
1st, go push rod burr and die joint burr effectively reliable, omission phenomenon will not be produced；
2nd, core is protected, core phenomenon of rupture when repairing core burr, will not be produced；
3rd, the efficiency for repairing core burr is greatly improved, and improves the production cycle time,.
Description of the drawings
Fig. 1 be core it is firm under fall schematic diagram when automatically removing device.
Fig. 2 is the core schematic diagram with die joint burr and push rod burr.
Schematic diagram when Fig. 3 is die joint burr and push rod burr is removed.
Fig. 4 is core is connect schematic diagram when stem stem is ejected with type.
Fig. 5 is to remove die joint burr and the qualified core schematic diagram after push rod burr.
Specific embodiment
Make specific introduction to the present invention below in conjunction with the drawings and specific embodiments.
As Figure 1-5, a kind of cold core burr automatically removes device 100, and the device includes formed by lower module 7
Cavity 8,8 top of the cavity are tightened up to form oral area 9, and 9 edge of cavity oral area is provided with die joint core finishing piece 1, cavity inside
Being provided with and stem stem 2 being connect with type, die joint core finishing piece 1 falls sky under core 3 in the oral area horizontal-extending two sides for surrounding core 3
During chamber 8, both sides die joint burr 5 is struck off by die joint core finishing piece 1；Stem stem 2 is connect with type to be coaxially disposed with lower push rod, it is described with type
Connect 3 surface of core at stem stem 2 and push rod to match, when core 3 falls, the push rod burr 6 of core bottom surface is connect stem stem with type by described
2 squeeze cracks.
Wherein, length of the gap of die joint core finishing piece 1 and core die joint 4 less than 5 horizontal direction of core die joint burr
Degree.Gap is little so that the core 3 with die joint burr in dropping process, by self gravitation and die joint core finishing piece 1
Effect, can effectively strike off core die joint burr 5.
In a specific embodiment, 2 radius of stem stem is connect more than push rod radius with type, connect stem stem radius and push rod with type
The distance between radius represents that with D the value of D is 2-4mm, more preferably 3mm.Stem stem radius is connect more than push rod radius with type,
The push rod burr 6 of one week at the push rod position of core bottom surface can be contained, large-area push rod burr 6 is effectively removed.
In a specific embodiment, after falling cavity under core 3, die joint core finishing piece 1 is higher than core die joint 4,
Die joint core finishing piece 1 represents with H that with the height of core die joint 4 span of H is 1-4mm, is more preferably 2-3mm.Now
The typing core finishing piece 1 of both sides can play a protective role, and prevent lower section push rod burr 6 from altering with core 3 when connecing the extruding of stem stem 2 with type
It is dynamic, so as to produce fracture.
In conjunction with shown in Fig. 1-5, using the minimizing technology of above-mentioned cold core burr automaton, comprise the following steps：
(1) core 3 is rejected upper core box, to the cavity 8 for automatically removing device 100 in the presence of 3 self gravitation of core
Fall；
(2), in dropping process, 3 both sides die joints burr 5 of core is struck off by the die joint core finishing piece 1 of oral area 9；
(3) in the presence of the gravity and acceleration of core 3, the push rod burr 6 of 3 bottom surface of core is connect 2 squeeze cracks with type；
(4) stem stem 2 is connect with type and up eject core 3, repeat step (2), (3), until obtaining qualified core 3.
The basic principles, principal features and advantages of the present invention have been shown and described above.The technical staff of the industry should
Understand, the invention is not limited in any way for examples detailed above, all skills obtained by the way of equivalent or equivalent transformation
Art scheme, all falls within protection scope of the present invention.
Claims (7)
1. a kind of cold core burr automatically removes device, it is characterised in that include the cavity formed by lower module, the cavity
Top tightens up to form oral area, and the cavity mouth rim is provided with die joint core finishing piece, and cavity inside is provided with and connects core with type
Post, the die joint core finishing piece is in the horizontal-extending encirclement core two sides of the oral area, both sides typing when cavity is fallen under core
Face burr is struck off by the die joint core finishing piece；It is described to connect stem stem with type and be coaxially disposed with lower push rod, it is described with type connect stem stem with
At push rod, core surface matches, and when core falls, the push rod burr of core bottom surface is connect stem stem squeeze crack with type by described.
2. the cold core burr described in claim 1 automatically removes device, it is characterised in that the die joint core finishing piece and core point
Length of the gap in type face less than core die joint burr horizontal direction.
3. the cold core burr described in claim 1 automatically removes device, it is characterised in that described to connect stem stem radius more than top with type
Bar radius 2-4mm.
4. the cold core burr described in claim 1 automatically removes device, it is characterised in that described to connect stem stem radius more than top with type
Bar radius 3mm.
5. the cold core burr described in claim 1 automatically removes device, it is characterised in that after falling cavity under the core, institute
Die joint core finishing piece is stated higher than core die joint 1-4mm.
6. the cold core burr described in claim 1 automatically removes device, it is characterised in that after falling cavity under the core, institute
Die joint core finishing piece is stated higher than core die joint 2-3mm.
7. a kind of cold core burr automatic removal method as claimed in claim 1, it is characterised in that include：
(1) core 3 is rejected upper core box, falls to the cavity for automatically removing device in the presence of 3 self gravitation of core；
(2), in dropping process, 3 both sides die joints burr 5 of core is struck off by die joint core finishing piece 1；
(3) in the presence of the gravity and acceleration of core 3, the push rod burr 6 of 3 bottom surface of core is connect 2 squeeze cracks with type；
(4) stem stem 2 is connect with type and up eject core 3, repeat step (2), (3), until obtaining qualified core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610940173.0A CN106513584B (en) | 2016-11-01 | 2016-11-01 | A kind of cold core burr automatically removes devices and methods therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610940173.0A CN106513584B (en) | 2016-11-01 | 2016-11-01 | A kind of cold core burr automatically removes devices and methods therefor |
Publications (2)
| Publication Number | Publication Date |
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| CN106513584A true CN106513584A (en) | 2017-03-22 |
| CN106513584B CN106513584B (en) | 2018-09-07 |
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| CN201610940173.0A Active CN106513584B (en) | 2016-11-01 | 2016-11-01 | A kind of cold core burr automatically removes devices and methods therefor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109807288A (en) * | 2017-11-20 | 2019-05-28 | 科华控股股份有限公司 | The molding concave die of sand core fash is scraped in a kind of easy to use and reliable repairing |
| CN110560640A (en) * | 2018-06-05 | 2019-12-13 | 科华控股股份有限公司 | Convenient and reliable molding scraping die for scraping sand core fash |
| CN110877231A (en) * | 2019-06-26 | 2020-03-13 | 宁波爱柯迪精密部件有限公司 | Aluminum die casting processing equipment |
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|---|---|---|---|---|
| DE1810367B1 (en) * | 1968-11-22 | 1970-07-02 | Daimler Benz Ag | Device for removing unevenness on cores |
| CN202105988U (en) * | 2011-05-06 | 2012-01-11 | 华东泰克西汽车铸造有限公司 | Automatic core picking and repairing device of core of automobile engine cylinder |
| CN203917818U (en) * | 2014-06-13 | 2014-11-05 | 泉州安科卫浴有限公司 | A kind of knockout mould of removing core burr |
| CN203936329U (en) * | 2014-06-05 | 2014-11-12 | 常州市永丰球墨铸造厂 | A kind of casting sand core core finishing machine |
| CN106001437A (en) * | 2016-07-08 | 2016-10-12 | 昆明云内动力股份有限公司 | Sand core fin removing device |
-
2016
- 2016-11-01 CN CN201610940173.0A patent/CN106513584B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1810367B1 (en) * | 1968-11-22 | 1970-07-02 | Daimler Benz Ag | Device for removing unevenness on cores |
| CN202105988U (en) * | 2011-05-06 | 2012-01-11 | 华东泰克西汽车铸造有限公司 | Automatic core picking and repairing device of core of automobile engine cylinder |
| CN203936329U (en) * | 2014-06-05 | 2014-11-12 | 常州市永丰球墨铸造厂 | A kind of casting sand core core finishing machine |
| CN203917818U (en) * | 2014-06-13 | 2014-11-05 | 泉州安科卫浴有限公司 | A kind of knockout mould of removing core burr |
| CN106001437A (en) * | 2016-07-08 | 2016-10-12 | 昆明云内动力股份有限公司 | Sand core fin removing device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109807288A (en) * | 2017-11-20 | 2019-05-28 | 科华控股股份有限公司 | The molding concave die of sand core fash is scraped in a kind of easy to use and reliable repairing |
| CN110560640A (en) * | 2018-06-05 | 2019-12-13 | 科华控股股份有限公司 | Convenient and reliable molding scraping die for scraping sand core fash |
| CN110877231A (en) * | 2019-06-26 | 2020-03-13 | 宁波爱柯迪精密部件有限公司 | Aluminum die casting processing equipment |
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| Publication number | Publication date |
|---|---|
| CN106513584B (en) | 2018-09-07 |
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