CN109175272A - A kind of bend pipe class sand casting sandbox and its sand core - Google Patents
A kind of bend pipe class sand casting sandbox and its sand core Download PDFInfo
- Publication number
- CN109175272A CN109175272A CN201811353640.5A CN201811353640A CN109175272A CN 109175272 A CN109175272 A CN 109175272A CN 201811353640 A CN201811353640 A CN 201811353640A CN 109175272 A CN109175272 A CN 109175272A
- Authority
- CN
- China
- Prior art keywords
- sand
- core
- sand core
- cope
- bend pipe
- 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
Links
- 244000035744 Hura crepitans Species 0.000 title claims abstract description 26
- 238000007528 sand casting Methods 0.000 title claims abstract description 16
- 239000004576 sand Substances 0.000 claims abstract description 25
- 238000000465 moulding Methods 0.000 claims abstract description 11
- 238000005507 spraying Methods 0.000 claims abstract description 5
- 101100384819 Caenorhabditis elegans cope-1 gene Proteins 0.000 description 7
- 238000005266 casting Methods 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000009659 non-destructive testing Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C21/00—Flasks; Accessories therefor
- B22C21/12—Accessories
- B22C21/14—Accessories for reinforcing or securing moulding materials or cores, e.g. gaggers, chaplets, pins, bars
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C21/00—Flasks; Accessories therefor
- B22C21/12—Accessories
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/02—Sand moulds or like moulds for shaped castings
-
- 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
Abstract
The invention discloses a kind of bend pipe class sand casting sandbox and its sand cores, sandbox includes cope, drag box, cope is equipped with more than two sand-spraying holes, cope is equipped with gas vent and cast gate, cast gate is connected to running channel, upper impression is equipped in cope, lower impressions are equipped in drag box, sand core includes upper half sand core and lower half sand core, molding arbor is respectively equipped in upper half sand core and lower half sand core, molding arbor both ends are pierced by the both ends of upper half sand core and lower half sand core respectively, arbor both ends are formed to weld with inner wall of sand box respectively, upper half sand core both ends are respectively equipped with cuboid core print one, lower half sand core both ends are respectively equipped with cuboid core print two, upper sand mold is equipped between cope and upper impression, lower sand mold is equipped between drag box and lower impressions.The bend pipe class sand casting sandbox and its sand core its do not need sand core inclination and floating to can be effectively prevented, and inconsistent phenomenon when mould assembling can be prevented using chaplet.
Description
Technical field
The present invention relates to a kind of sand mold casting devices, and in particular to a kind of bend pipe class sand casting sandbox and its sand core.
Background technique
For sand casting bend pipe class casting, generally using conventional core print, because sand core self structure is in gravity after lower core
Can be to the intracavitary inclination of type, in addition when molten steel injection type is intracavitary under effect, sand core can be floated up by the buoyancy of molten steel, due to
This two aspects reason, it is uneven to will lead to casting section thickness.In the prior art, in order to fix sand core, need to above and below type chamber tank wall it is thick
Increase by two irony studs at position and be used to support fixed sand core, is floated after preventing lower core rear-inclined and injection molten steel.But pressure-bearing
Valve inner quality requirement height does not allow inside with the presence of stud, it is necessary to remove in casting subsequent processing, stud removes position
It needs soldering to get well and passes through relevant Requirements of Nondestructive Testing just qualification.The castings production cost that the method greatly increases, and exist
Stud perforated removes risk.Secondly, current sandbox is in mould assembling, there are inconsistent phenomenons, to cause the dislocation of internal cavity, increase
The disqualification rate of product is added.
Summary of the invention
The purpose of the present invention is to provide a kind of bend pipe class sand casting sandbox and its sand cores, do not need using stud
Support can be effectively prevented sand core inclination and floating, and can prevent inconsistent phenomenon when mould assembling.
To achieve the above object, the invention provides the following technical scheme:
A kind of bend pipe class sand casting sandbox and its sand core, the sandbox include cope, drag box, the cope
More than two sand-spraying holes are equipped with, the cope is equipped with gas vent and cast gate, and the cast gate is connected to running channel, the upper sand
It is equipped with upper impression in case, is equipped with lower impressions in the drag box, the upper impression and lower impressions combine to form a complete type
Chamber, the sand core include upper half sand core and lower half sand core, and the upper half sand core and lower half sand core extend through upper impression and mo(u)ld bottom half
Chamber is respectively equipped with molding arbor in the upper half sand core and lower half sand core, and the molding arbor both ends are pierced by upper half sand core respectively
With the both ends of lower half sand core, the molding arbor both ends are welded with inner wall of sand box respectively, and upper half sand core both ends are respectively equipped with
Cuboid core print one, lower half sand core both ends are respectively equipped with cuboid core print two, are equipped between the cope and upper impression
Upper sand mold is equipped with lower sand mold between the drag box and lower impressions.
Preferably, fastening frame, the fastening frame are respectively equipped at the cope lower edge and drag box upper end-face edge
It is equipped with threaded hole.
Preferably, the cope lower end is equipped with positioning column, and it is compatible with positioning column fixed that the drag box upper end is equipped with
Position hole.
Preferably, the cope lower end is equipped with the edge of protrusion, and the drag box upper end is equipped with compatible with edge
Card slot.
Preferably, one lower end of cuboid core print is equipped with locating piece, and two upper end of cuboid core print is equipped with and positioning
The compatible locating slot of block.
Preferably, the cope and drag box both ends are equipped with handle.
Compared with prior art, the beneficial effects of the present invention are:
1) after cuboid core print two is contacted with lower sand mold, cuboid core print two side faces are mutually contradicted with lower sand mold active force,
It can prevent sand core from tilting down.In addition after molten steel injects, one top surface of cuboid core print is mutually contradicted with upper sand mold active force,
It can prevent sand core from floating up.Forming arbor welds together with sandbox, can further enhance core print fixing intensity.
2) pass through multiple location structures, it is ensured that be not in inconsistent phenomenon when mould assembling.
3) present invention can be intracavitary it is not necessary that in the case where placing stud, effectively fixed sand core tilt sand core will not in type
And it will not float after molten steel injection, it is ensured that casting section thickness.Castings production cost is greatly reduced, and improves cast-internal matter
Amount.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of a kind of bend pipe class sand casting sandbox and its sand core in the embodiment of the present invention；
Fig. 2 is the bottom view of cope in the embodiment of the present invention；
Fig. 3 is the top view of drag box in the embodiment of the present invention；
In figure, 1, cope, 2, drag box, 3, handle, 4, fastening frame, 5, threaded hole, 6, positioning column, 7, location hole, 8,
Edge, 9, card slot, 10, sand-spraying hole, 11, gas vent, 12, cast gate, 13, running channel, 14, upper impression, 15, lower impressions, 16, upper half sand
Core, 17, lower half sand core, 18, molding arbor, 19, cuboid core print one, 20, cuboid core print two, 21, locating piece, 22, positioning
Slot, 23, upper sand mold, 24, lower sand mold.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
His embodiment, shall fall within the protection scope of the present invention.
It please refers to shown in Fig. 1-3, a kind of bend pipe class sand casting sandbox and its sand core, sandbox include cope 1, lower sand
Case 2, cope 1 and 2 both ends of drag box are equipped with handle 3, set respectively at 2 upper end-face edge of 1 lower edge of cope and drag box
There is fastening frame 4, fastening frame 4 is equipped with threaded hole 5.1 lower end of cope is equipped with positioning column 6, and 2 upper end of drag box is equipped with and positioning column
6 compatible location holes 7.1 lower end of cope is equipped with the edge 8 of protrusion, and 2 upper end of drag box is equipped with card compatible with edge 8
Slot 9.Cope 1 is equipped with more than two sand-spraying holes 10, and cope 1 is equipped with gas vent 11 and cast gate 12, cast gate 12 and running channel
13 connections.It is equipped with upper impression 14 in cope 1, lower impressions 15 are equipped in drag box 2, upper impression 14 and the combination of lower impressions 15 are formed
One complete type chamber.Sand core includes upper half sand core 16 and lower half sand core 17, and upper half sand core 16 and lower half sand core 17 extend through
Upper impression 14 and lower impressions 15.It is respectively equipped with molding arbor 18 in upper half sand core 16 and lower half sand core 17, forms 18 both ends of arbor
It is pierced by the both ends of upper half sand core 16 and lower half sand core 17 respectively, molding 18 both ends of arbor are welded with inner wall of sand box respectively.Upper half sand
16 both ends of core are respectively equipped with cuboid core print 1, and 17 both ends of lower half sand core are respectively equipped with cuboid core print 2 20, cuboid core
First 19 lower end is equipped with locating piece 21, and 2 20 upper end of cuboid core print is equipped with locating slot 22 compatible with locating piece 21, upper sand
It is equipped with upper sand mold 23 between case 1 and upper impression 14, lower sand mold 24 is equipped between drag box 2 and lower impressions 15.
Working principle and its application method: edge 8 is caught in card slot 9, and positioning column 6 protrudes into corresponding location hole 7, is used
Bolt passes through the fastening frame 4 sequentially passed through on cope 1 and drag box 2, and cope 1 and drag box 2 are fastened.Cuboid core print
After 2 20 contact with lower sand mold 24,2 20 side of cuboid core print is mutually contradicted with lower 24 active force of sand mold, can prevent sand core
It tilts down.In addition after molten steel injects, one 19 top surface of cuboid core print is mutually contradicted with upper 23 active force of sand mold, can be prevented
Sand core floats up.Forming arbor 18 welds together with sandbox, can further enhance core print fixing intensity.
Above content is only to structure of the invention example and explanation, affiliated those skilled in the art couple
Described specific embodiment does various modifications or additions or is substituted in a similar manner, without departing from the present invention
Structure or beyond the scope defined by this claim, be within the scope of protection of the invention.
Claims (6)
1. a kind of bend pipe class sand casting sandbox and its sand core, it is characterised in that: the sandbox includes cope, drag box,
The cope is equipped with more than two sand-spraying holes, and the cope is equipped with gas vent and cast gate, and the cast gate and running channel connect
It is logical, it is equipped with upper impression in the cope, is equipped with lower impressions in the drag box, the upper impression and lower impressions combine to form one
A complete type chamber, the sand core include upper half sand core and lower half sand core, and the upper half sand core and lower half sand core extend through
Type chamber and lower impressions are respectively equipped with molding arbor in the upper half sand core and lower half sand core, and the molding arbor both ends are worn respectively
The both ends of upper half sand core and lower half sand core out, the molding arbor both ends are welded with inner wall of sand box respectively, the upper half sand core two
End is respectively equipped with cuboid core print one, and lower half sand core both ends are respectively equipped with cuboid core print two, the cope and mo(u)ld top half
It is equipped with upper sand mold between chamber, lower sand mold is equipped between the drag box and lower impressions.
2. a kind of bend pipe class sand casting sandbox according to claim 1 and its sand core, it is characterised in that: the upper sand
Fastening frame is respectively equipped at case lower edge and drag box upper end-face edge, the fastening frame is equipped with threaded hole.
3. a kind of bend pipe class sand casting sandbox according to claim 1 and its sand core, it is characterised in that: the upper sand
Case lower end is equipped with positioning column, and the drag box upper end is equipped with location hole compatible with positioning column.
4. a kind of bend pipe class sand casting sandbox according to claim 1 and its sand core, it is characterised in that: the upper sand
Case lower end is equipped with the edge of protrusion, and the drag box upper end is equipped with card slot compatible with edge.
5. a kind of bend pipe class sand casting sandbox according to claim 1 and its sand core, it is characterised in that: described rectangular
One lower end of body core print is equipped with locating piece, and two upper end of cuboid core print is equipped with locating slot compatible with locating piece.
6. a kind of bend pipe class sand casting sandbox according to claim 1 and its sand core, it is characterised in that: the upper sand
Case and drag box both ends are equipped with handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811353640.5A CN109175272A (en) | 2018-11-14 | 2018-11-14 | A kind of bend pipe class sand casting sandbox and its sand core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811353640.5A CN109175272A (en) | 2018-11-14 | 2018-11-14 | A kind of bend pipe class sand casting sandbox and its sand core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109175272A true CN109175272A (en) | 2019-01-11 |
Family
ID=64939131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811353640.5A Pending CN109175272A (en) | 2018-11-14 | 2018-11-14 | A kind of bend pipe class sand casting sandbox and its sand core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109175272A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111250663A (en) * | 2020-03-09 | 2020-06-09 | 陕西柴油机重工有限公司 | Mud core positioning and forming device and method for small holes for complex box type castings |
| CN111331082A (en) * | 2019-12-27 | 2020-06-26 | 西峡县内燃机进排气管有限责任公司 | Fixing method of sand core and core rod for fixing sand core |
| CN114367640A (en) * | 2021-12-31 | 2022-04-19 | 广东中铸机械设备有限公司 | Molding machine |
| WO2022126543A1 (en) * | 2020-12-17 | 2022-06-23 | 江苏方时远略科技咨询有限公司 | Valve-coating sand core |
| TWI777455B (en) * | 2021-03-16 | 2022-09-11 | 謝常彥 | Method for making sand mold for large pipe fittings |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111331082A (en) * | 2019-12-27 | 2020-06-26 | 西峡县内燃机进排气管有限责任公司 | Fixing method of sand core and core rod for fixing sand core |
| CN111250663A (en) * | 2020-03-09 | 2020-06-09 | 陕西柴油机重工有限公司 | Mud core positioning and forming device and method for small holes for complex box type castings |
| WO2022126543A1 (en) * | 2020-12-17 | 2022-06-23 | 江苏方时远略科技咨询有限公司 | Valve-coating sand core |
| TWI777455B (en) * | 2021-03-16 | 2022-09-11 | 謝常彥 | Method for making sand mold for large pipe fittings |
| CN114367640A (en) * | 2021-12-31 | 2022-04-19 | 广东中铸机械设备有限公司 | Molding machine |
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