CN106392005A - Water channel core mold of large-sized diesel engine cylinder block - Google Patents
Water channel core mold of large-sized diesel engine cylinder block Download PDFInfo
- Publication number
- CN106392005A CN106392005A CN201611120550.2A CN201611120550A CN106392005A CN 106392005 A CN106392005 A CN 106392005A CN 201611120550 A CN201611120550 A CN 201611120550A CN 106392005 A CN106392005 A CN 106392005A
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- Prior art keywords
- core
- core box
- box
- diesel engine
- water channel
- Prior art date
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- 239000004576 sand Substances 0.000 claims abstract description 22
- 238000005452 bending Methods 0.000 claims abstract description 8
- 238000007790 scraping Methods 0.000 claims abstract description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 27
- 239000010959 steel Substances 0.000 claims description 27
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 10
- 239000003822 epoxy resin Substances 0.000 claims description 10
- 229920000647 polyepoxide Polymers 0.000 claims description 10
- 229910052742 iron Inorganic materials 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 239000000945 filler Substances 0.000 claims description 4
- 238000012545 processing Methods 0.000 claims description 4
- 239000002023 wood Substances 0.000 claims description 4
- 208000020442 loss of weight Diseases 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 12
- 238000000034 method Methods 0.000 abstract description 11
- 238000003825 pressing Methods 0.000 abstract description 4
- 238000005553 drilling Methods 0.000 abstract 1
- 238000000465 moulding Methods 0.000 description 4
- 241001074085 Scophthalmus aquosus Species 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000004615 ingredient Substances 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 208000002352 blister Diseases 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
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
- B22C9/103—Multipart 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/22—Moulds for peculiarly-shaped castings
- B22C9/24—Moulds for peculiarly-shaped castings for hollow articles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The invention discloses a water channel core mold of a large-sized diesel engine cylinder block. The water channel core mold of the large-sized diesel engine cylinder block comprises a lower core ejection plate assembly, a lower core box, an upper core box, clamping elements and a sand scraping plate. The lower core ejection plate assembly comprises a lower core ejection plate and lower core ejection rods. A sand core cavity is formed in the upper portion of the lower core box. Core bar supporting blocks are arranged at the two ends of the sand core cavity. The lower core box is arranged above the lower core ejection plate assembly, and a plurality of cushion blocks are arranged between the lower core box and the lower core ejection plate assembly. The upper core box is arranged above the lower core box, and a sand filling opening is formed in the back face of the upper core box. Each clamping element comprises a framework opened at one side and a pressing handle screwed onto an upper cross beam of the framework, and the pressing handles of the upper cross beams and lower cross beams are used for clamping the upper core box and the lower core box to correct mold deformation. By means of the water channel core mold of the large-sized diesel engine cylinder block, bending deformation and fracture of long and thin sand cores are avoided, integrity and accuracy of the sand cores are guaranteed, the splicing procedure and exhaust hole drilling procedure in sand core production are reduced, and production efficiency of the sand cores is improved.
Description
Technical field
The present invention relates to electromotor casting field, particularly to a kind of large-sized diesel engine cylinder water channel core mold.
Background technology
The exploitation of large-sized diesel engine cylinder now, in order to verify the design rationality of its structure and the characteristic of product,
Process and assemble would generally be cast and go out several few new product checking model machines of quantity, carry out the optimization of product again by verifying model machine
Design, the mould development manufacture core just entering product after model machine is qualified carries out mass production.Thus Heavy Diesel Engine Cylinder Body
Exploitation early stage, produce from the core of the body of the usual large-scale diesel engine of the angle of cost and will not put into too many metal pattern
Tool carries out the making of core.
And the water channel sand cores of large-sized diesel engine cylinder are slim-lined construction, size is about 2853*139*94, and many places are weak
Position is thick to only have 48.8mm, and core overlength, weakness are easily deformed.For ensureing the intensity of core, it is to avoid deformation is it will usually in core
Built-in steel part arbor supports；In order to avoid defects such as blebs it will usually do the steam vent of insertion core.In addition, large-scale bavin
The core-making method of the water channel sand cores of oil machine cylinder block is typically with mould manual core making, and core is split into two halves independent coremaking, and two
It is spliced after half core hardening.
Though existing core-making method can meet job demand, there are a lot of shortcomings, be mainly manifested in：
First, the core-making method that then spliced using point half coremaking the disadvantage is that, core be easily deformed, disconnected core due to
Need upper and lower two halves core splicing, the back-up sand hole of splicing will be made in the faying face of every half core, arbor used can only make
With elongated round steel, rigidity is not enough.Core weak location is thick only less than 25mm after being split into two halves, and divides half core to be easier to become
Shape and rupturing in weak location.
Secondly, splicing difficult splicing faying face needs gluing, and begin to rehearse air drain, and splicing core has dislocation and error.
Further, core begins to rehearse, and air drain difficulty core itself is narrow, thin, and point two halves are made as proof strength, every half core
In all pre-buried arbor so that for begin to rehearse air drain space less, begun to rehearse air drain to avoid core shape again ensure row
Air drain and core outer wall have certain sand thick, quite well wear, fluting is difficult.
Finally, above core-making method, operating difficultiess, the yield rate of core low it is impossible to meet the needs of production.
The information being disclosed in this background section is merely intended to increase the understanding of the general background to the present invention, and should not
Recognize when being considered or imply in any form that this information structure has been the prior art well known to persons skilled in the art.
Content of the invention
It is an object of the invention to provide a kind of simple and reasonable large-sized diesel engine cylinder water channel core mold, this is big
Diesel engine cylinder water channel core mold avoids the flexural deformation of elongated core, fracture it is ensured that the integrity of core, accurately
Property, reduce splicing operation and the brill steam vent operation that core produces, improve core production efficiency, and there is low cost, mould system
Make cycle is short, geomery is accurate, and lightweight advantage.
For achieving the above object, the invention provides a kind of large-sized diesel engine cylinder water channel core mold, this large-sized diesel
Machine cylinder water channel core mold includes：Lower plunger tip board component, it includes：Lower plunger tip plate and lower plunger tip bar, described lower plunger tip bar is
Many, it is vertically arranged on described lower plunger tip plate by its one end；Lower core box, its top offers core die cavity, this core type
The two ends in chamber are provided with arbor support block, for supporting the round steel pipe arbor pressing core shape pre-bending, described lower core box setting
Above described lower plunger tip board component, it is laid with therebetween many cushion blocks；Upper core box, it is laid in the upper of described lower core box
Side, for and lower core box fasten coremaking, the back side of described upper core box has back-up sand mouth；Clamping element, it includes：One side opening
Frame-type frame and be screwed onto this frame-type frame entablature pressure handle, the pressure handle of described entablature and sill respectively clamping upper core box and
Lower core box is correcting die deformation；And stragith edge, its back-up sand being arranged on described upper core box that can be slided by scraping head
In mouthful.
Preferably, in technique scheme, upper core box adopts wooden frame, interior preset steel pipe skeleton and iron nail, and uses ring
Pouring after oxygen tree fat, firming agent, filler are mixed well forms the overall structure moulded in outer wood, then digital control processing forms.
Preferably, in technique scheme, the side interval of lower core box offers multiple fixture bayonet sockets, described frame-type frame
Vertical beam snaps in described fixture bayonet socket upper core box and lower core box described in clamping respectively.
Preferably, in technique scheme, upper core box is rectangular slat shape.
Preferably, in technique scheme, stragith edge has axial loss of weight mouth.
Compared with prior art, the present invention has the advantages that：
1st, steel pipe support can be put in core using the technical program, it is to avoid the flexural deformation of elongated core,
Fracture, it is ensured that the integrity of core, accuracy, reduces splicing operation and the brill steam vent operation that core produces, improves core life
Produce efficiency.
2nd, the mould of the technical program has low cost, and die manufacturing cycle is short, and geomery is accurate, and lightweight spy
Point.
Brief description
Fig. 1 is the structural representation of the large-sized diesel engine cylinder water channel core mold of the present invention.
Fig. 2 is the lower plunger tip board component of large-sized diesel engine cylinder water channel core mold and the cushion block structure signal of the present invention
Figure.
Fig. 3 is the lower core box of large-sized diesel engine cylinder water channel core mold and the signal of arbor support block structure of the present invention
Figure.
Fig. 4 is the upper core box structural representation of the large-sized diesel engine cylinder water channel core mold of the present invention.
Fig. 5 is the clamping element structural representation of the large-sized diesel engine cylinder water channel core mold of the present invention.
Fig. 6 is the plate structure schematic diagram of strike-ofing of the large-sized diesel engine cylinder water channel core mold of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawings, the specific embodiment of the present invention is described in detail, it is to be understood that the guarantor of the present invention
Shield scope is not limited by specific embodiment.
Explicitly indicate that unless otherwise other, otherwise in entire disclosure and claims, term " inclusion " or its change
Change such as "comprising" or " including " etc. and will be understood to comprise stated element or ingredient, and do not exclude other units
Part or other ingredient.
As shown in figure 1, the concrete knot of the large-sized diesel engine cylinder water channel core mold according to the specific embodiment of the invention
Structure includes：Lower plunger tip board component 1, cushion block 2, lower core box 3, arbor support block 4, upper core box 5, clamping element 6 and stragith edge 7, wherein,
Upper core box 5 and lower core box 3 are combined coremaking, in the flatter shape face back-up sand of upper core box, cancel the back-up sand of splicing core
Hole, it is to avoid core is easily deformed, disconnected core and due to needing upper and lower two halves core splicing, will make in the faying face of every half core
The back-up sand hole of splicing, arbor used can only be using elongated round steel, and rigidity is not enough, splicing is difficult.Upper core box 5 is long, thin, and
The back side is opened wide, and rigidity is very poor.Ensure core molding accurately, upper core box 5 is necessary for overall structure it is impossible to splice.Therefore this skill
The upper core box 5 of art scheme adopts wooden frame, and interior preset steel pipe skeleton and iron nail (steel pipe skeleton passes through wooden frame), using asphalt mixtures modified by epoxy resin
Fat, firming agent, filler water after mixing well, and become the one moulded in outer wood after epoxy resin cure with wooden frame, then digital control processing and
Become, decrease the deformation of upper core box, it is to avoid when core box folding, epoxy resin and wooden frame come off.And using by core shape pre-bending
Round steel pipe as increase sand core strength arbor, and outer wall of steel pipe bore aperture communicate with steel tube inner hole, do exhaust passage, keep away
Exempt from the flexural deformation of elongated core, fracture it is ensured that the integrity of core, accuracy, reduced splicing operation and bore steam vent work
Sequence, improves core production efficiency.Model machine verification machine foundry goods fast and low-cost production for large-scale diesel engine new product provides guarantor
Card.
Specifically, as shown in Fig. 2 lower plunger tip board component 1 includes：Lower plunger tip plate 11 and lower plunger tip bar 12, wherein, lower top
Central layer 11 is laid in the bottom of large-sized diesel engine cylinder water channel core mold of the present invention, for lip block 2, lower core box 3, arbor
Support block 4, upper core box 5, clamping element 6 and stragith edge 7.Lower plunger tip bar 12 is many in two row arrangements, vertical by its one end
It is arranged on lower plunger tip plate 11, for ejecting core through lower core box 3.
As shown in figure 3, the top of lower core box 3 offers core die cavity 31, the two ends of core die cavity are provided with arbor and prop up
Bracer 4, this arbor support block 4 is used for supporting the round steel pipe 8 pressing core shape pre-bending, and this round steel pipe 8 is as increase sand core strength
Arbor, and the outer wall in round steel pipe 8 bored aperture and communicated with steel tube inner hole, does exhaust passage, it is to avoid the bending of elongated core
Deformation, fracture, it is ensured that the integrity of core, accuracy, reduce splicing operation and bore steam vent operation, improve core and produce effect
Rate.Lower core box 3 is arranged on the top of lower plunger tip board component 1, is laid with therebetween many cushion blocks 2, for supporting lower core box 3,
And withdraw from so that lower plunger tip bar 12 passes through lower core box 3 to eject core when molding.The side interval of lower core box 3 offers multiple
Fixture bayonet socket 32, upper core box mould is because long, thin, and the back side is opened wide, and deformation is serious, needs to be led to multiple clamping elements 6 after matched moulds
Cross this fixture bayonet socket 32 to block lower core box 3 and upper core box 5 to correct die deformation, then back-up sand coremaking again.
As shown in figure 4, upper core box 5 be rectangular slat shape, it is laid in the top of lower core box 3, for and lower core box 3 close
Coremaking together, the back side of upper core box 5 has back-up sand mouth 51, in flatter back-up sand mouth 51 back-up sand of upper core box, cancels splicing sand
The back-up sand hole of core, it is to avoid core is easily deformed, disconnected core and due to needing upper and lower two halves core splicing.The shape of upper core box 5
Long, thin, and the back side is unlimited, rigidity is very poor.Ensure core molding accurately, upper core box 5 is necessary for overall structure it is impossible to splice.
Upper core box 5 adopts wooden frame, interior preset steel pipe skeleton and iron nail (steel pipe skeleton passes through wooden frame), using epoxy resin, firming agent,
Filler waters after mixing well, and becomes the one moulded in outer wood after epoxy resin cure with wooden frame, then digital control processing forms.Upper core box exists
Before pouring epoxy resin, steel pipe skeleton passes through wooden frame, is positioned in wooden frame to increase the rigidity of upper core box；Suitable inside wooden frame
Forge iron nail for position, epoxy resin to be tangled, makes wooden frame, skeleton, epoxy resin become an entirety, reduces the change of upper core box
Shape, it is to avoid when core box folding, epoxy resin and wooden frame come off.
As shown in figure 5, clamping element 6 includes：The frame-type frame of one side opening and be screwed onto this frame-type frame entablature pressure handle,
During application, the vertical beam of frame-type frame snaps in the fixture bayonet socket 32 of lower core box 3, and the pressure handle of the entablature of frame-type frame and sill block respectively
Tight upper core box 5 and lower core box 3 correcting die deformation, then back-up sand coremaking again.
As shown in fig. 6, in the back-up sand mouth 51 being arranged on upper core box 5 that can be slided by scraping head 71 of stragith edge 7, being used for
Strike off core face.Preferably, stragith edge 7 has axial loss of weight mouth 72.
Round steel pipe by core shape pre-bending is used as the arbor increasing sand core strength, and outer wall of steel pipe bore aperture with
Steel tube inner hole communicates, and does exhaust passage.
During cylinder of diesel engine water channel core molding, it is placed on arbor according to the arbor that core center tendency is pre-bent as and supports
(round steel pipe by core shape pre-bending is used as the arbor increasing sand core strength, and bores aperture and steel in outer wall of steel pipe on block
Pipe orifice communicates, and does exhaust passage), then close core box；Correct its deformation with clamping element compression upper core box.Filling out in upper core box
Sand mouth back-up sand, strikes off core face using stragith edge.Treat that core solidifies, unclamp clamping element, open upper core box；Pump cushion block, lower top
Central layer assembly completes plunger tip.This sand is moulded core box and is had open-close module and accurately puts in place, makes that core shape is accurate, intensity is high, convenient
Operation shapes；And die cost is low, the feature of Mold Making cycle is short.This programme mould can be simulated metal die and be made by hand
The real conditions of core, be diesel engine new product sizing after, manufacture and design metal die accumulate experience optimization mould program establish base
Plinth.
To sum up, this large-sized diesel engine cylinder water channel core mold passes through to put steel pipe support in core, it is to avoid elongated
The flexural deformation of core, fracture, it is ensured that the integrity of core, accuracy, reduce splicing operation and the brill steam vent that core produces
Operation, improves core production efficiency, and has low cost, die manufacturing cycle is short, and geomery is accurate, and lightweight excellent
Point.
The description of the aforementioned specific illustrative embodiment to the present invention illustrate that and illustration purpose.These descriptions
It is not wishing to limit the invention to disclosed precise forms, and it will be apparent that according to above-mentioned teaching, can much be changed
And change.The purpose of selecting and describing the exemplary embodiment is that explaining that the certain principles of the present invention and its reality should
With so that those skilled in the art be capable of and utilize the present invention various different exemplary and
Various different selections and change.The scope of the present invention is intended to be limited by claims and its equivalents.
Claims (5)
1. a kind of large-sized diesel engine cylinder water channel core mold is it is characterised in that include：
Lower plunger tip board component, it includes：Lower plunger tip plate and lower plunger tip bar, described lower plunger tip bar is many, vertical by its one end
It is arranged on described lower plunger tip plate；
Lower core box, its top offers core die cavity, and the two ends of this core die cavity are provided with arbor support block, presses for supporting
The round steel pipe arbor of core shape pre-bending, described lower core box is arranged on the top of described lower plunger tip board component, lays therebetween
There are many cushion blocks；
Upper core box, it is laid in the top of described lower core box, for and lower core box fasten coremaking, described upper core box the back side tool
There is back-up sand mouth；
Clamping element, it includes：The frame-type frame of one side opening and be screwed onto this frame-type frame entablature pressure handle, described entablature
Pressure handle and sill respectively clamping upper core box and lower core box correcting die deformation；And
Stragith edge, in its back-up sand mouth being arranged on described upper core box that can be slided by scraping head.
2. large-sized diesel engine cylinder water channel core mold according to claim 1 is it is characterised in that described upper core box adopts
Wooden frame, interior preset steel pipe skeleton and iron nail, and pouring forms in outer wood and moulds after being mixed well using epoxy resin, firming agent, filler
Overall structure, then digital control processing forms.
3. large-sized diesel engine cylinder water channel core mold according to claim 1 is it is characterised in that the side of described lower core box
Face interval offers multiple fixture bayonet sockets, the vertical beam of described frame-type frame snap in described fixture bayonet socket respectively upper core box described in clamping and
Lower core box.
4. large-sized diesel engine cylinder water channel core mold according to claim 1 is it is characterised in that described upper core box is square
Shape strip.
5. large-sized diesel engine cylinder water channel core mold according to claim 1 is it is characterised in that described stragith edge has
Axial loss of weight mouth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611120550.2A CN106392005A (en) | 2016-12-08 | 2016-12-08 | Water channel core mold of large-sized diesel engine cylinder block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611120550.2A CN106392005A (en) | 2016-12-08 | 2016-12-08 | Water channel core mold of large-sized diesel engine cylinder block |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106392005A true CN106392005A (en) | 2017-02-15 |
Family
ID=58084552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611120550.2A Pending CN106392005A (en) | 2016-12-08 | 2016-12-08 | Water channel core mold of large-sized diesel engine cylinder block |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106392005A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107626891A (en) * | 2017-09-06 | 2018-01-26 | 陕西柴油机重工有限公司 | A kind of preparation method of diesel engine water oil-piping casting mold and water oil-piping |
| CN107824746A (en) * | 2017-11-02 | 2018-03-23 | 广西玉柴机器股份有限公司 | The arbor component of ship machine cross gate core |
| CN110465624A (en) * | 2019-09-19 | 2019-11-19 | 广西玉柴机器股份有限公司 | A kind of the ultra-large type craft core mould and core-making method of V-type engine cylinder block |
| CN110586862A (en) * | 2019-10-17 | 2019-12-20 | 广西玉柴机器股份有限公司 | Large-scale diesel engine cylinder block main oil gallery psammitolite mould |
| CN112719212A (en) * | 2021-01-29 | 2021-04-30 | 广西玉柴机器股份有限公司 | Core box structure for casting and core making method of manual sand filling |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107626891A (en) * | 2017-09-06 | 2018-01-26 | 陕西柴油机重工有限公司 | A kind of preparation method of diesel engine water oil-piping casting mold and water oil-piping |
| CN107824746A (en) * | 2017-11-02 | 2018-03-23 | 广西玉柴机器股份有限公司 | The arbor component of ship machine cross gate core |
| CN107824746B (en) * | 2017-11-02 | 2022-06-07 | 广西玉柴机器股份有限公司 | Core bar assembly of ship engine horizontal pouring channel core |
| CN110465624A (en) * | 2019-09-19 | 2019-11-19 | 广西玉柴机器股份有限公司 | A kind of the ultra-large type craft core mould and core-making method of V-type engine cylinder block |
| CN110465624B (en) * | 2019-09-19 | 2024-05-03 | 广西玉柴机器股份有限公司 | Ultra-large manual core box die of V-shaped engine cylinder block and core manufacturing method |
| CN110586862A (en) * | 2019-10-17 | 2019-12-20 | 广西玉柴机器股份有限公司 | Large-scale diesel engine cylinder block main oil gallery psammitolite mould |
| CN112719212A (en) * | 2021-01-29 | 2021-04-30 | 广西玉柴机器股份有限公司 | Core box structure for casting and core making method of manual sand filling |
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Application publication date: 20170215 |