CN207288806U - A kind of novel riser combining structure - Google Patents
A kind of novel riser combining structure Download PDFInfo
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- CN207288806U CN207288806U CN201721079883.5U CN201721079883U CN207288806U CN 207288806 U CN207288806 U CN 207288806U CN 201721079883 U CN201721079883 U CN 201721079883U CN 207288806 U CN207288806 U CN 207288806U
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Abstract
A kind of novel riser combining structure, including riser buss, riser pad and elastic obturator, form feeding cavity, elastic obturator is arranged in feeding cavity between riser buss and riser pad；Riser pad is the rotation body shell structure that metallic plate punching forms, it is made of three housing parts；First housing parts are equipped with annular groove, and the bottom of riser buss forms inserting connection in a manner of clearance fit with annular groove；The inner cavity of second housing parts is the stepped inner cavity pore structure in longitudinal section, and the bottom of elastic obturator forms inserting connection with the lumen orifice of riser pad in an interference fit, makes to form band at both faying faces；3rd housing parts are bowl-shape or cone structure, and the one end of the 3rd housing parts away from the second housing parts forms riser neck, the straight flange being provided with riser neck inside riser pad, form reinforcement and return structure.This riser combining structure has the advantages that sealing scum silica frost, riser neck are unlikely to deform.
Description
Technical field
The utility model belongs to casting riser technical field, more particularly to a kind of novel riser combining structure.
Background technology
In Foundry Production, to avoid casting from the defects of shrinkage porosite, shrinkage cavity occur, while for ease of being vented sum aggregate slag, usually
Riser buss is placed on the top of casting cavity or sidepiece.In casting process, storage solution state metal feeding in the cavity of riser buss
Liquid, the operative liquid metal feeding liquid stored can be recharged in casting cavity during casting cools down, and do not recharge casting
Metal feeding liquid in part cavity forms the casting pressing port being connected with casting body, for ease of being cast after casting after casting cooling
The separation of part riser and casting body, avoids destroying casting body during both are separated, usually in riser buss and casting
Riser pad is placed between cavity, riser pad makes casting body form necking down structure in connecting portion with casting pressing port,
Also become easy fracture, reduce connection area between the two.
Patent No. 201420458562.6, it is entitled：A kind of utility model patent of novel riser set combining structure is public
A kind of riser buss combining structure being made of riser buss 1 ', riser pad 2 ' and elastic obturator 3 ' is opened, wherein elasticity filling
Body is made of flammable gasification materials.The combining structure is outside by elastic obturator when extruding molding sand after penetrating sand molding
Support force offsets portion extrusion power, in this way, reduce the possibility that riser buss and riser pad crush, even if occur it is broken,
Due to there is the support of inner elastomeric obturator, maintaining riser buss, basic configuration is constant, and the riser buss fragment of fragmentation will not be inside
Cavity is collapsed or falls into, riser buss inner cavity does not interfere with feeding a casting without obvious volume change.The riser buss combining structure
Refer to Fig. 7-8.
Above-mentioned riser buss combining structure, in the case of the lower end cooperation of riser pad and elastic obturator is untight,
After riser buss rupture, the broken slag of small volume has enters sand mold by the gap between riser pad and elastic obturator
Risk；In addition, the necking down mouth of existing riser pad is cut-out mouth structure, easily deforms, cause after sand molding is penetrated
Guide rod with being placed in riser buss is interference fitted, so that the undesirable phenomenon of molding can be produced.
The content of the invention
The utility model provides a kind of novel riser combining structure to solve technical problem present in known technology, should
On the one hand riser combining structure forms sealing between cameron core and riser buss inner elastomeric obturator, so as to avoid riser
After set is broken, scum silica frost enters sand mold and influences casting quality；On the other hand the intensity of necking down oral area position is improved, so as to avoid
When extruding molding sand after penetrating sand molding, necking down mouth is deformed and is interference fitted with guide rod, and then can reduce molding fraction defective.
The utility model is adopted the technical scheme that to solve technical problem present in known technology：
A kind of novel riser combining structure, including riser buss, riser pad and elastic obturator, riser pad are coaxial
The lower section of riser buss is arranged on, forms feeding cavity between the two, the elasticity obturator is made of inflammable volatizable material, institute
Elastic obturator is stated to be arranged in the feeding cavity, it is characterised in that：
The riser pad is the shell structure that forms of metallic plate punching, and it is in rotation body that it is overall, its by with riser
The first housing parts that the bottom of set coordinates and the second housing parts and formation riser that the bottom of elastic obturator coordinates
3rd housing parts of neck are sequentially connected composition；Be provided with annular groove on the first housing parts, the bottom of riser buss with
The mode of clearance fit forms inserting connection with the annular groove；The inner cavity of second housing parts is stepped for longitudinal section
Inner cavity pore structure, the bottom of elastic obturator form inserting with the lumen orifice of riser pad in an interference fit and connect
Connect, make to form band at both faying faces；3rd housing parts are bowl-shape or cone structure, and the 3rd housing parts are remote
One end from the second housing parts forms riser neck, is provided with towards the straight flange inside riser pad, is formed at riser neck
Strengthen structure of returning.
Preferably：The lumen orifice of second housing parts is single order step inner cavity pore structure or second order step inner cavity pore structure.
The utility model has the advantages and positive effects of：
The utility model riser combining structure, by the way that the lumen orifice of riser pad is arranged to shoulder hole structure, and with elasticity
The bottom of obturator forms interference fit, makes to form band between the two, in this way, in moulding, has prevented broken emit
Muzzle particle (scum silica frost) falls into the risk of cavity；Metal is set to return at riser neck, the intensity at increase riser neck position, is improved
The non-deformability at riser neck position, so as to prevent the draft that riser neck deformation and guide rod locking occurs and produces bad existing
As.
Brief description of the drawings
Fig. 1 is the structure diagram of the first embodiment of the utility model；
Fig. 2 is partial enlarged view at the A of Fig. 1；
Fig. 3 is the half-sectional dimensional structure diagram of riser pad in Fig. 1；
Fig. 4 is the structure diagram of second of implementation of the utility model；
Fig. 5 is partial enlarged view at the B of Fig. 4；
Fig. 6 is the half-sectional dimensional structure diagram of riser pad in Fig. 4；
Fig. 7 is the schematic diagram of existing riser combining structure；
Fig. 8 is the half-sectional dimensional structure diagram of existing riser pad.
In figure：1st, riser buss；2nd, riser pad；2-1, the first housing parts；2-1-1, annular groove；2-2, second shell
Body portion；2-3, the 3rd housing parts；2-3-1, straight flange；3rd, elastic obturator.
Embodiment
For that can further appreciate that the invention, features and effects of the utility model, the following examples are hereby given, and coordinates
Attached drawing describes in detail as follows：
Embodiment 1：
Refer to Fig. 1-3, a kind of novel riser combining structure, including riser buss 1, riser pad 2 and elastic obturator
3, riser pad is co-axially located at the lower section of riser buss, forms feeding cavity between the two, the elasticity obturator is by inflammable
Volatizable material is made, such as, polystyrene foam material, the elasticity obturator is arranged in the feeding cavity.This reality
It is with new inventive point：
The riser pad is the shell structure that metallic plate punching forms, and it is in rotation body that it is overall.Riser pad
From the second housing parts with the first housing parts 2-1 with riser buss bottom, with the bottom cooperation of elastic obturator
3rd housing parts 2-3 of 2-2 and formation riser neck is sequentially connected composition.Annular groove 2- is provided with the first housing parts
1-1, the bottom of riser buss is in a manner of clearance fit and the annular groove of riser pad forms inserting connection, i.e. riser buss
Bottom and riser pad annular groove between certain fit clearance is set.The inner cavity of second housing parts is cut to be vertical
The stepped inner cavity pore structure in face, lumen orifice are single order step inner cavity pore structure.Matched somebody with somebody with interference the bottom of elastic obturator
The mode of conjunction and the lumen orifice of riser pad form inserting connection, make to form band at both faying faces, i.e. elasticity is filled out
Fill the size of the bottom of body radially and be larger than the size of the lumen orifice of riser pad radially, pass through bullet
Property elastically deforming inward for obturator bottom be inserted into the lumen orifice of riser pad, with formed sealing.3rd shell
Body portion is bowl-shape or cone structure, and the one end of the 3rd housing parts away from the second housing parts forms riser neck, at riser neck
It is provided with towards the straight flange 2-3-1 inside riser pad, forms reinforcement and return structure, structure improves by strengthening returning
Intensity at riser neck, to improve non-deformability.
Embodiment 2：
Refer to Fig. 4-6, a kind of novel riser combining structure, including riser buss 1, riser pad 2 and elastic obturator
3, riser pad is co-axially located at the lower section of riser buss, forms feeding cavity between the two, the elasticity obturator is by inflammable
Volatizable material is made, such as, polystyrene foam, the elasticity obturator is arranged in the feeding cavity.This practicality is new
The inventive point of type is：
The riser pad is the shell structure that metallic plate punching forms, and it is in rotation body that it is overall.Riser pad
From the second housing parts with the first housing parts 2-1 with riser buss bottom, with the bottom cooperation of elastic obturator
3rd housing parts 2-3 of 2-2 and formation riser neck is sequentially connected composition.Annular groove 2- is provided with the first housing parts
1-1, the bottom of riser buss is in a manner of clearance fit and the annular groove of riser pad forms inserting connection, i.e. riser buss
Bottom and riser pad annular groove between be provided with certain fit clearance.It is in the inner cavity of the second housing parts
The stepped inner cavity pore structure in longitudinal section, lumen orifice are second order step inner cavity pore structure.The bottom of elastic obturator is with mistake
It is full of the mode of cooperation and the lumen orifice of riser pad forms inserting connection, makes to form band, i.e. bullet at both faying faces
The bottom of property obturator is two up big and down small cylinder tables, two cylinder tables respectively with second order step inner cavity hole up and down two
A stepped hole, which is formed, to be coordinated, and the size of two cylinder tables radially is larger than the ruler of the radial direction of corresponding aperture respectively
It is very little, in the elastic obturator of installation, it is inserted into by elastically deforming inward in the lumen orifice of riser pad.3rd housing
Part is bowl-shape or cone structure, and the one end of the 3rd housing parts away from the second housing parts forms riser neck, set at riser neck
It is equipped with towards the straight flange 2-3-1 inside riser pad, forms reinforcement and return structure, is improved and emitted by structure of strengthening returning
Intensity and non-deformability at mouth neck.
Lumen orifice uses second order step inner cavity pore structure in embodiment 2, the bottom of elastic obturator is easily cut with riser
The lumen orifice of piece is respectively formed tight fit in upper and lower two lateral locations, it is compared in embodiment 1, only in a lateral location shape
Into the structure of tight fit, better seal effect can reach.
The utility model riser combining structure has the advantages that sealing scum silica frost, riser neck are unlikely to deform.
Example preferably is applied the foregoing is merely the utility model, is not used for limiting the scope of the utility model.I.e.
The equivalent changes and modifications that all contents according to present utility model application the scope of the claims are done, each falls within the technology model of the utility model
Enclose.
Claims (2)
1. a kind of novel riser combining structure, including riser buss, riser pad and elastic obturator, riser pad are coaxially set
Put in the lower section of riser buss, form feeding cavity between the two, the elasticity obturator is made of inflammable volatizable material, described
Elastic obturator is arranged in the feeding cavity, it is characterised in that：
The riser pad is the shell structure that forms of metallic plate punching, and it is in rotation body that it is overall, its by with riser buss
The second housing parts and form riser neck that the bottom of first housing parts of bottom cooperation and elastic obturator coordinates
3rd housing parts are sequentially connected composition；Annular groove is provided with the first housing parts, the bottom of riser buss is with gap
The mode of cooperation forms inserting connection with the annular groove；The inner cavity of second housing parts is the stepped inner cavity in longitudinal section
Pore structure, the bottom of elastic obturator form inserting connection with the lumen orifice of riser pad in an interference fit, make
Band is formed at both faying faces；3rd housing parts are bowl-shape or cone structure, and the 3rd housing parts are away from
One end of two housing parts forms riser neck, is provided with riser neck towards the straight flange inside riser pad, is formed and strengthened
Return structure.
2. novel riser combining structure according to claim 1, it is characterised in that：The lumen orifice of second housing parts is one
Rank step inner cavity pore structure or second order step inner cavity pore structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721079883.5U CN207288806U (en) | 2017-08-25 | 2017-08-25 | A kind of novel riser combining structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721079883.5U CN207288806U (en) | 2017-08-25 | 2017-08-25 | A kind of novel riser combining structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207288806U true CN207288806U (en) | 2018-05-01 |
Family
ID=62438854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721079883.5U Active CN207288806U (en) | 2017-08-25 | 2017-08-25 | A kind of novel riser combining structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207288806U (en) |
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2017
- 2017-08-25 CN CN201721079883.5U patent/CN207288806U/en active Active
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