CN203992257U - A kind of Novel riser cover combining structure - Google Patents
A kind of Novel riser cover combining structure Download PDFInfo
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- CN203992257U CN203992257U CN201420458562.6U CN201420458562U CN203992257U CN 203992257 U CN203992257 U CN 203992257U CN 201420458562 U CN201420458562 U CN 201420458562U CN 203992257 U CN203992257 U CN 203992257U
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- riser buss
- riser
- cameron core
- elasticity obturator
- combining structure
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Abstract
A kind of Novel riser cover combining structure, comprise riser buss body and cameron core, cameron core is coaxially located at the lower end of riser buss body, form feeding cavity between the two, in feeding cavity, be provided with elasticity obturator, the medial surface of bottom surface, side and the cameron core of elasticity obturator and riser buss chamber body compresses; Elasticity obturator is made by inflammable gasifiable material.This riser buss combining structure by arranging elasticity obturator in feeding cavity, make after penetrating sand molding, during extruding molding sand, elasticity obturator forms outside support force to riser buss body and cameron core, this support force has been offset part extruding force, thereby reduced the possibility of riser buss body and cameron core fragmentation, even if occur broken, also can make riser buss body maintain basic configuration constant, riser buss fragment can inwardly not subside or fall into die cavity, riser buss inner chamber is without obvious change in volume, and then can not affect feeding a casting, because elasticity obturator has the feature of heat combustion gasification, therefore, during later stage is cast, liquid metal filling and feeding process are without impact.
Description
Technical field
The utility model relates to casting technology field, particularly a kind of Novel riser cover combining structure.
Background technology
At present, in Foundry Production field, common insulating and heating riser cover combining structure consists of riser buss body and cameron core.According to the design feature of cameron core and different from the fit system of riser buss body thereof, two kinds of common riser buss combining structures are:
1, cameron core is made by molding sand or ceramic material, and it is shaped as oblate column, and the cameron core of this type in use, is bonded in the lower end of riser buss body.The problem that this kind of fit structure in use exists is: on mo(u)lding line, penetrate after sand molding, while pushing sand mold by stripper plate, riser buss and cameron core invariant position, when the insufficient strength of riser buss body and cameron core, can cause riser buss and cameron core broken.Broken this cognition of riser buss is subsided, and larger broken piece can be filled in original feeding cavity, causes feeding liquid measure not enough, cause foundry goods to be scrapped, the broken piece of less riser buss directly falls in die cavity, produces pore or cinder hole during casting, causes foundry goods to be scrapped.Broken cameron core can cause the problem that foundry goods molding is bad or cast(ing) surface is difficult to cleaning, when serious, can cause foundry goods to be scrapped.
2, cameron core is made by metal material, is divided into two kinds, and a kind of is tubular structure, and it partly consists of the cylindrical tube part and the conical tube that connect up and down.In use by the cylindrical tube partial insertion of cameron core in the inner chamber of riser buss body, be sleeved on moulding on push rod; Another kind is bowl structure, is located at rising head body lower end during use, is sleeved on moulding on push rod.The problem that these two kinds of combining structures in use exist is: after penetrating sand molding, while pushing sand mold by stripper plate, riser buss body moves down, when moving down into certain position, the pressure bearing when riser buss body is larger, inevitably occurs fragmentation, and part fragment collapses in feeding cavity, cause feeding a casting liquid measure not enough, cause foundry goods to be scrapped; Part fragment is fallen into foundry goods die cavity, produces pore or cinder hole, equally also causes foundry goods to be scrapped.
Summary of the invention
The utility model provides a kind of and by squeeze board compacting sand mold, produces under larger pressure when the tide mould sand moulding for solving the technical problem existing in known technology, reduce riser buss body and cameron core broken, avoid fragment to enter in feeding cavity or foundry goods die cavity, thereby reduce the deficiency that foundry goods molding is bad or cast(ing) surface is difficult to cleaning, reduce the Novel riser cover combining structure that foundry goods is scrapped.
The technical scheme that the utility model is taked for the technical problem existing in solution known technology is:
A kind of Novel riser cover combining structure, comprise riser buss body and cameron core, cameron core is coaxially arranged on the lower end of riser buss body, form feeding cavity between the two, it is characterized in that: in described feeding cavity, be provided with elasticity obturator, the medial surface of bottom surface, side and the cameron core of described elasticity obturator and riser buss chamber body compresses; Described elasticity obturator is made by inflammable gasifiable material.
The technical scheme that the utility model can also be taked is:
Described elasticity obturator is made by foamed material.
Advantage and the good effect that the utlity model has are:
The utility model is by arranging elasticity obturator in the feeding cavity in riser buss body and cameron core formation, make after penetrating sand molding, when squeeze board extruding molding sand, elasticity obturator forms outside support force to riser buss body and cameron core, the inside extruding force forming section that the support force that this is outside and squeeze board extruding molding sand act on riser buss body is offset, and then reduced the possibility of riser buss body and cameron core fragmentation, even if occur broken, owing to there being the support of inner elastomeric obturator, make riser buss body maintain basic configuration constant, cracked riser buss fragment can inwardly not subside or fall into die cavity, riser buss inner chamber is without obvious change in volume, and then can not affect feeding a casting, in addition, also reduced the deficiency because the broken foundry goods molding causing of cameron core is bad or cast(ing) surface is difficult to cleaning, because elasticity obturator has heat combustion gasification, therefore, during the later stage is cast, liquid metal filling and feeding process are without impact.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model the first embodiment;
Fig. 2 is structural representation Fig. 1 of the utility model the second embodiment;
Fig. 3 is structural representation Fig. 2 of the utility model the second embodiment.
In figure: 1, riser buss body; 2, cameron core; 3, elasticity obturator.
The specific embodiment
For further understanding summary of the invention of the present utility model, Characteristic, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
Refer to Fig. 1-3, a kind of Novel riser cover combining structure, comprise riser buss body 1 and cameron core 2, cameron core is coaxially arranged on the lower end of riser buss body, form feeding cavity between the two, in described feeding cavity, be provided with elasticity obturator 3, the medial surface of bottom surface, side and the cameron core of described elasticity obturator and riser buss chamber body compresses.Described elasticity obturator is made by inflammable gasifiable material.Above-mentioned riser buss combining structure is applicable to the combining structure of existing various riser buss and cameron core, such as, thin cylindric cameron core in accompanying drawing 1 and the combining structure of riser buss, adopt this combining structure, on mo(u)lding line, penetrate after sand molding, while pushing sand mold by stripper plate, riser buss body and cameron core invariant position, the elasticity obturator that is located at the inside mainly plays a supportive role, at riser buss body, occur broken in the situation that, make riser buss body maintain basic configuration constant, thereby guaranteed that cracked riser buss fragment can inwardly not subside or fall into die cavity.Fig. 2 and Fig. 3 are the combining structures of tubulose cameron core and riser buss, and wherein Fig. 2 penetrates the structural representation that does not apply extruding force after sand molding; Fig. 3 applies the structural representation after extruding force with squeeze board.Adopt this combining structure, after penetrating sand molding, while pushing sand mold by stripper plate, riser buss body moves down certain distance, compress the cameron core of lower end, in the folding process of riser buss body, the elasticity that gradually reduces obturator, make the contraction distortion of elasticity obturator, apply outside elastic anchorage force to riser buss body and cameron core, this elastic anchorage force has been offset the extruding force of part, therefore, farthest reduced the fragmentation of riser buss body and cameron core, even if there is fragmentation, also can guarantee that cracked riser buss fragment can inwardly not subside or fall into die cavity.
In said structure, described elasticity obturator preferably adopts foamed material to make.
The foregoing is only the better example of executing of the present utility model, be not used for limiting practical range of the present utility model, i.e. all equivalences of doing according to the content of the utility model claim change and modify, and all fall into technical scope of the present utility model.
Claims (2)
1. a Novel riser overlaps combining structure, comprise riser buss body and cameron core, cameron core is coaxially arranged on the lower end of riser buss body, form feeding cavity between the two, it is characterized in that: in described feeding cavity, be provided with elasticity obturator, the medial surface of bottom surface, side and the cameron core of described elasticity obturator and riser buss chamber body compresses; Described elasticity obturator is made by inflammable gasifiable material.
2. Novel riser cover combining structure according to claim 1, is characterized in that: described elasticity obturator is made by foamed material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420458562.6U CN203992257U (en) | 2014-08-14 | 2014-08-14 | A kind of Novel riser cover combining structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420458562.6U CN203992257U (en) | 2014-08-14 | 2014-08-14 | A kind of Novel riser cover combining structure |
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| Publication Number | Publication Date |
|---|---|
| CN203992257U true CN203992257U (en) | 2014-12-10 |
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| CN201420458562.6U Active CN203992257U (en) | 2014-08-14 | 2014-08-14 | A kind of Novel riser cover combining structure |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104972095A (en) * | 2015-07-16 | 2015-10-14 | 南车戚墅堰机车车辆工艺研究所有限公司 | Insulating and exothermic riser for metal-mould low pressure casting and manufacturing method and application thereof |
| CN107377882A (en) * | 2017-06-22 | 2017-11-24 | 江苏理工学院 | A kind of iron casting processing method |
| CN108015235A (en) * | 2018-01-12 | 2018-05-11 | 刘思彤 | A kind of insulating and heating riser |
-
2014
- 2014-08-14 CN CN201420458562.6U patent/CN203992257U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104972095A (en) * | 2015-07-16 | 2015-10-14 | 南车戚墅堰机车车辆工艺研究所有限公司 | Insulating and exothermic riser for metal-mould low pressure casting and manufacturing method and application thereof |
| CN107377882A (en) * | 2017-06-22 | 2017-11-24 | 江苏理工学院 | A kind of iron casting processing method |
| CN108015235A (en) * | 2018-01-12 | 2018-05-11 | 刘思彤 | A kind of insulating and heating riser |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |