CN106111911A - Complicated core tears core coring method open - Google Patents
Complicated core tears core coring method open Download PDFInfo
- Publication number
- CN106111911A CN106111911A CN201610737879.7A CN201610737879A CN106111911A CN 106111911 A CN106111911 A CN 106111911A CN 201610737879 A CN201610737879 A CN 201610737879A CN 106111911 A CN106111911 A CN 106111911A
- Authority
- CN
- China
- Prior art keywords
- core
- upper mold
- sand
- inner bolt
- screw rod
- 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.)
- Granted
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/10—Cores; Manufacture or installation of cores
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C7/00—Patterns; Manufacture thereof so far as not provided for in other classes
- B22C7/06—Core boxes
- B22C7/067—Ejector elements
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulds, Cores, Or Mandrels (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
A kind of complicated core tears core coring method open, comprises the following steps: make the upper die and lower die of core box according to pre-manufactured model;Upper mold is offered some female threads;From back-up sand mouth to back-up sand in core box, back-up sand limit, limit consolidation, after back-up sand, strike off back-up sand mouth;Core hardens;Tear core open;Coring, by arranging female thread in upper mold in the present invention, then the screw rod of coupling is used, described upper mold is raised up to the demoulding along vertical direction by the engagement force acted between the counteracting force of screw rod and screw rod and female thread by the die joint of lower mold, so control upper mold along vertical direction molding by some screw rods, there is not the risk of double swerve, fundamentally stop the risk helping shape structure core destroyed.
Description
Technical field
The present invention relates to sand casting technical field, particularly relate to a kind of complicated core and tear core coring method open.
Background technology
Coremaking operation is to cast one of topmost operation, the main task of this operation be exactly produce qualified, meet work
The core that skill requires, how by core, complete the taking out from core box of the most complex-shaped core is coremaker author
Required skill.
Complex-shaped core is all to comprise sand core structure in the upper die and lower die of core box, so by core from core box
Complete takes out, and is taken out by core respectively including from upper die and lower die.
Generally, when core hardening reaches the requirement tearing core coring open, use crane to hook the handle of tight upper mold, upper mold sling,
Afterwards turn over lower mold, by core take out, during this, for the sand core structure in upper mold more complicated or careful time, due to
, there is the uncontrollable factor of double swerve in the less stable of crane so that the core in upper mold is destroyed, thus causes whole
Core can not use.
Summary of the invention
The complicated core be necessary to propose a kind of slow molding, stablizing the demoulding tears core coring method open.
A kind of complicated core tears core coring method open, comprises the following steps:
Making core box according to pre-manufactured model, core box includes the upper die and lower die being divided mould by die joint;
Offering some inner bolt holes in upper mold, described some inner bolt holes extend to the inside of upper mold, inner bolt hole from the top of upper mold
Low side connect with described die joint, described some inner bolt holes are divided equally and are distributed in described upper mold;
Use stopper to be blocked by described inner bolt hole, enter inner bolt hole with sand during preventing back-up sand;
From back-up sand mouth to back-up sand in core box, back-up sand limit, limit consolidation, after back-up sand, strike off back-up sand mouth;
Core hardens;
Tear core open: take out described stopper, the some screw rods mated with the screw thread of described inner bolt hole are inserted inner bolt hole, makes the end of screw rod
Portion contacts with the die joint of lower mold, then synchronizes to screw described some screw rods, makes point mould of the screw rod top down mould from upper mold
Move in direction, face, to be acted on the engagement force general between the counteracting force of screw rod and screw rod and inner bolt hole by the die joint of lower mold
Described upper mold is lifted along vertical direction;
Coring: upset lower mold, takes out core.
Preferably, in the described step tearing core open, when synchronizing to screw described some screw rods, according to clockwise direction or inverse time
Pin direction, screws each screw rod successively, and each screw rod screws a pitch every time, is lifted so that described upper mold is slowly stable
Play the demoulding.
By arranging inner bolt hole in upper mold in the present invention, then use the screw rod of coupling, made by the die joint of lower mold
Described upper mold is raised up to the demoulding along vertical direction by the engagement force between the counteracting force and screw rod and inner bolt hole of screw rod,
So by some screw rods control upper mold along vertical direction molding, there is not the risk of double swerve, fundamentally stop
The risk that side shape structure core is destroyed.
Accompanying drawing explanation
Fig. 1 is the structural representation listing a kind of baroque core in core box.
Fig. 2 is the Fig. 1 sectional view along A-A.
In figure: upper mold 10, lower mold 20, die joint 30, handle 40, back-up sand mouth 50, screw rod 60, side shape structure core 70, sand
Core main body 80.
Detailed description of the invention
In order to be illustrated more clearly that the technical scheme of the embodiment of the present invention, below by embodiment required use attached
Figure is briefly described, it should be apparent that, the accompanying drawing in describing below is some embodiments of the present invention, common for this area
From the point of view of technical staff, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
See Fig. 1, Fig. 2, embodiments provide a kind of complicated core and tear core coring method open, according to pre-manufactured model system
Making core box, core box includes the upper mold 10 by 30 points of moulds of die joint and lower mold 20;
Offering some inner bolt holes in upper mold 10, described some inner bolt holes extend to the inside of upper mold 10 from the top of upper mold 10,
The low side of inner bolt hole connects with described die joint 30, and described some inner bolt holes are evenly distributed in upper mold 10;
Use stopper to be blocked by described inner bolt hole, enter inner bolt hole with sand during preventing back-up sand;
From back-up sand mouth 50 to back-up sand in core box, back-up sand limit, limit consolidation, after back-up sand, strike off back-up sand mouth 50;
Core hardens;
Tear core open: take out described stopper, the some screw rods 60 mated with the screw thread of described inner bolt hole are inserted inner bolt hole, makes screw rod 60
Bottom contact with the die joint 30 of lower mold 20, then synchronize screw some screw rods 60, make screw rod 60 from the top of upper mold 10 to
The die joint 30 direction motion of lower mold 20, to act on counteracting force and the screw rod 60 of screw rod 60 by the die joint 30 of lower mold 20
And described upper mold 10 is lifted by the engagement force between inner bolt hole along vertical direction;
Coring: upset lower mold 20, takes out core.
Such as, core is structure as shown in Figure 2, all comprises sand core structure, particularly with upper in upper mold 10 and lower mold 20
Sand core structure in mould 10 is elongated and to the internal side shape structure core 70 extended of upper mold 10, is core main body in lower mold 20
80, side shape structure core 70 and core main body 80 constitute whole core, belong to an entirety of connection, if this structure is direct
Upper mold 10 is pulled up by the handle 40 using crane to catch on upper mold 10, due to rocking of suspension arm of crane, drives upper mold 10 also to rock, shakes
Dynamic upper mold 10 produces cross shear to the side shape structure core 70 of its inside, makes side shape structure core 70 and core main body 80
Between, especially side shape structure core 70 root crack, even side shape structure core 70 is broken disconnected, thus causes core
Scrap.
The method using the present invention, some screw rods 60 slowly synchronize to move upward, upper mold 10 are vertically lifted, and upper mold 10 is not
The side shape structure core 70 of its inside can be produced shearing force, after being lifted certain altitude to upper mold 10, on slinging with crane
Mould 10 is also born away.
Further, in the described step tearing core open, when synchronizing to screw some screw rods 60, according to clockwise direction or counterclockwise
Direction, screws each screw rod 60 successively, and each screw rod 60 screws a pitch every time, is lifted so that upper mold 10 is slowly stable
Play the demoulding.Wherein, pitch refers to the axial distance between first tooth of screw thread and second tooth.
Step in embodiment of the present invention method can carry out order according to actual needs and adjust, merges and delete.
The above disclosed present pre-ferred embodiments that is only, can not limit the right model of the present invention with this certainly
Enclose, one of ordinary skill in the art will appreciate that all or part of flow process realizing above-described embodiment, and want according to right of the present invention
Seek made equivalent variations, still fall within the scope that invention is contained.
Claims (2)
1. a complicated core tears core coring method open, it is characterised in that comprise the following steps:
Making core box according to pre-manufactured model, core box includes the upper die and lower die being divided mould by die joint;
Offering some inner bolt holes in upper mold, described some inner bolt holes extend to the inside of upper mold, inner bolt hole from the top of upper mold
Low side connect with described die joint, described some inner bolt holes are evenly distributed in described upper mold;
Use stopper to be blocked by described inner bolt hole, enter inner bolt hole with sand during preventing back-up sand;
From back-up sand mouth to back-up sand in core box, back-up sand limit, limit consolidation, after back-up sand, strike off back-up sand mouth;
Core hardens;
Tear core open: take out described stopper, the some screw rods mated with the screw thread of described inner bolt hole are inserted inner bolt hole, makes the end of screw rod
Portion contacts with the die joint of lower mold, then synchronizes to screw described some screw rods, makes point mould of the screw rod top down mould from upper mold
Move in direction, face, to be acted on the engagement force general between the counteracting force of screw rod and screw rod and inner bolt hole by the die joint of lower mold
Described upper mold is lifted along vertical direction;
Coring: upset lower mold, takes out core.
2. a kind of complicated core as claimed in claim 1 tears core coring method open, it is characterised in that: in the described step tearing core open
In, when synchronizing to screw described some screw rods, according to clockwise or counterclockwise, screw each screw rod successively, each
Individual screw rod screws a pitch every time, so that described upper mold is the most stably lifted the demoulding.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201610737879.7A CN106111911B (en) | 2016-08-26 | 2016-08-26 | Complicated core tears core coring method open |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN201610737879.7A CN106111911B (en) | 2016-08-26 | 2016-08-26 | Complicated core tears core coring method open |
Publications (2)
Publication Number | Publication Date |
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CN106111911A true CN106111911A (en) | 2016-11-16 |
CN106111911B CN106111911B (en) | 2017-12-08 |
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CN201610737879.7A Active CN106111911B (en) | 2016-08-26 | 2016-08-26 | Complicated core tears core coring method open |
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CN (1) | CN106111911B (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106984770A (en) * | 2017-03-17 | 2017-07-28 | 共享装备股份有限公司 | Rod class sand cores of castings core box and core-making method |
CN110039033A (en) * | 2019-05-30 | 2019-07-23 | 大连金河铸造有限公司 | Casting plays mold technique and tooling |
CN110625070A (en) * | 2019-10-17 | 2019-12-31 | 邳州市政隆建设有限公司 | Semi-automatization casting mould |
CN111318643A (en) * | 2020-03-30 | 2020-06-23 | 共享智能装备有限公司 | Mold opening device for split mold |
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DE202005010661U1 (en) * | 2005-06-23 | 2005-09-22 | Schmidt, Detlef | Metal casting molding box has a first half with rods extending through the orthogonal presentation second half |
CN200957451Y (en) * | 2006-09-25 | 2007-10-10 | 西峡县内燃机进排气管有限责任公司 | Simple shell-core caster |
CN203390158U (en) * | 2013-07-24 | 2014-01-15 | 乐山天威机械制造有限公司 | Device capable of improving de-molding efficiency of large-size core steel sample mould |
CN103611883A (en) * | 2013-10-16 | 2014-03-05 | 慈溪市汇丽机电有限公司 | Sand mold and sand core internal movable block draft apparatus |
CN203542954U (en) * | 2013-10-25 | 2014-04-16 | 天津市百利纽泰克电气科技有限公司 | Screw propulsion type positioning assembly |
CN205217918U (en) * | 2015-12-25 | 2016-05-11 | 安徽昱工耐磨材料科技有限公司 | Side direction shedder of core box mould |
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2016
- 2016-08-26 CN CN201610737879.7A patent/CN106111911B/en active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
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DE202005010661U1 (en) * | 2005-06-23 | 2005-09-22 | Schmidt, Detlef | Metal casting molding box has a first half with rods extending through the orthogonal presentation second half |
CN200957451Y (en) * | 2006-09-25 | 2007-10-10 | 西峡县内燃机进排气管有限责任公司 | Simple shell-core caster |
CN203390158U (en) * | 2013-07-24 | 2014-01-15 | 乐山天威机械制造有限公司 | Device capable of improving de-molding efficiency of large-size core steel sample mould |
CN103611883A (en) * | 2013-10-16 | 2014-03-05 | 慈溪市汇丽机电有限公司 | Sand mold and sand core internal movable block draft apparatus |
CN203542954U (en) * | 2013-10-25 | 2014-04-16 | 天津市百利纽泰克电气科技有限公司 | Screw propulsion type positioning assembly |
CN205217918U (en) * | 2015-12-25 | 2016-05-11 | 安徽昱工耐磨材料科技有限公司 | Side direction shedder of core box mould |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106984770A (en) * | 2017-03-17 | 2017-07-28 | 共享装备股份有限公司 | Rod class sand cores of castings core box and core-making method |
CN106984770B (en) * | 2017-03-17 | 2019-04-02 | 共享装备股份有限公司 | Stick class sand cores of castings core box and core-making method |
CN110039033A (en) * | 2019-05-30 | 2019-07-23 | 大连金河铸造有限公司 | Casting plays mold technique and tooling |
CN110625070A (en) * | 2019-10-17 | 2019-12-31 | 邳州市政隆建设有限公司 | Semi-automatization casting mould |
CN111318643A (en) * | 2020-03-30 | 2020-06-23 | 共享智能装备有限公司 | Mold opening device for split mold |
CN111318643B (en) * | 2020-03-30 | 2021-08-03 | 共享智能装备有限公司 | Mold opening device for split mold |
Also Published As
Publication number | Publication date |
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CN106111911B (en) | 2017-12-08 |
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