CN205551391U - Casting mould structure of sand -lined metal mould casting abrasive disc - Google Patents
Casting mould structure of sand -lined metal mould casting abrasive disc Download PDFInfo
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- CN205551391U CN205551391U CN201620304202.XU CN201620304202U CN205551391U CN 205551391 U CN205551391 U CN 205551391U CN 201620304202 U CN201620304202 U CN 201620304202U CN 205551391 U CN205551391 U CN 205551391U
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Abstract
The utility model relates to a casting mould structure of sand -lined metal mould casting abrasive disc, it belongs to mechanical technical field. The utility model discloses a going up swage, swage and abrasive disc grouting runner mud core down, should going up the swage and match each other with swage down, abrasive disc grouting runner mud core is located between swage and the lower swage, and the top and bottom of abrasive disc grouting runner mud core are upper abrasive disc grouting runner working face and the abrasive disc grouting of lower floor runner working face respectively, after the swage passes through the core setting mould assembling, forms the casting mould die cavity of two piece upper and lower abrasive discs. The utility model discloses rational in infrastructure, the abrasive disc warp for a short time, and product size precision is high, and roughness is good, and production efficiency is high, and the wearability of product is good, safe and reliable.
Description
Technical field
This utility model relates to the casting mold structure of a kind of Sand-Faced Metal Mould Casting abrasive disc, and it belongs to technical field of machinery.
Background technology
Defiberator-refiner plate, hereinafter referred to as abrasive disc, abrasive disc is the critical component of defibrator separation fiber, and material is anti-friction material, extreme hardness, the work surface of abrasive disc is covered with a plurality of complexity excessive slurry runner, as shown in Figure 1: directly casting out, is not processed, is the parts directly contacted with timber, and fragile, belong to consumable accessory.
For abrasive disc foundry goods, overflow slurry runner work surface is completely most important, it is impossible to have any slurry runner that overflows imperfect.This type of abrasive disc of overseas casting typically uses mistake wax hot investment casting, so can guarantee that dimensional accuracy and the surface roughness of the slurry runner that overflows, thus ensures the efficiency of defibrator.But hot investment casting abrasive disc there is also certain deficiency, because abrasive disc belongs to big flat thin wall pieces, size is bigger, easily being deformed, production procedure and the production cycle of losing wax hot investment casting long, typically more than 5 days simultaneously, production cost is high, typically doubles than sand casting with several times.
The production of domestic abrasive disc typically uses ordinary sand casting, all there is the biggest gap with external in the excessive slurry channel size precision of abrasive disc foundry goods and surface roughness, cause that defibrination efficiency is low, use cost is high, and use ordinary sand casting abrasive disc, during making molds, the limited strength of molding sand, overflow runner is the highest at 10-15mm, and the spacing of runner only has 5-6mm, is easily damaged by excessive slurry runner when molding, the yield rate produced is the lowest, equally exists mistake wax hot investment casting abrasive disc problem on deformation simultaneously.
Sand-Faced Metal Mould Casting belongs to one of Special Processes of Metal Castings, its casting mold is to be covered with a thin layer precoated sand on metal mold inner chamber to form casting mold, mold stiffness is good, casting dimension accuracy and surface roughness that Sand-Faced Metal Mould Casting produces are good, it is unlikely to deform, and with short production cycle, short route can be realized and produce, be a kind of energy-conservation, mode of production of material-saving.But use common Sand-Faced Metal Mould Casting to produce abrasive disc, when the one or more production of a type, reason because of Iron Mould Coated Sand mould structure defect, cover sand molding when molding, the phenomenon being very easy to cause the excessive slurry runner of one or more abrasive discs to damage when molding in casting mold occurs, production process is covered sand molding waste product and is remained high, it is difficult to realize mass production or economical production.
Utility model content
The purpose of this utility model is to overcome above-mentioned deficiency present in prior art, and provides a kind of reasonable in design, and abrasive disc deformation is little, product size precision is high, and surface roughness is good, and production efficiency is high, the wearability of product is good, the casting mold structure of safe and reliable Sand-Faced Metal Mould Casting abrasive disc.
The technical scheme in the invention for solving the above technical problem is: the casting mold structure of this Sand-Faced Metal Mould Casting abrasive disc, it is characterized in that: in described abrasive disc casting mold, the excessive slurry pipes' analysis of abrasive disc is formed by abrasive disc excessive slurry runner mud core, and casting mold form respectively upper and lower two panels abrasive disc casting mold cavity structure by placement abrasive disc excessive slurry runner mud core.
The casting mold structure of Sand-Faced Metal Mould Casting abrasive disc, including upper swage and lower swage, on this, swage and lower swage are mutually matched, by the way of lower core, the casting mold die cavity of upper and lower two pieces of abrasive discs is formed in Iron Mould Coated Sand casting mold, it is characterized in that: also include abrasive disc overflow slurry runner mud core, described abrasive disc overflow slurry runner mud core between upper swage and lower swage, abrasive disc overflow slurry runner mud core top and bottom be respectively upper strata abrasive disc overflow slurry runner work surface and lower floor's abrasive disc overflow slurry runner work surface.
The most rational in infrastructure, abrasive disc deformation is little, production efficiency is high, the wearability of product is good, when ensureing to produce, overflow and starch the complete of runner in the refining work face of abrasive disc, the overflow upper and lower faces of slurry runner mud core of abrasive disc forms the excessive slurry runner work surface of upper and lower two abrasive discs simultaneously, can form the complete casting mold die cavity of upper and lower two pieces of abrasive discs, can obtain upper and lower two pieces of abrasive discs after cast after lower core.
As preferably, lower floor described in the utility model abrasive disc overflows and starches runner work surface upward, and upper strata abrasive disc overflows slurry runner work surface down.
As preferably, abrasive disc described in the utility model overflows and starches a 1/4 Sand-Faced Metal Mould Casting running gate system making whole casting mold of runner mud core, makes corresponding part riser runner in other end；Ensure that the gas that casting mold produces in molten steel pouring course can discharge casting mold die cavity smoothly, so that it is guaranteed that thin-walled abrasive disc particularly abrasive disc overflows, slurry runner can be poured into a mould completely, this rising head can also carry out liquid molten iron feeding to the abrasive disc foundry goods of rising head end in process of setting simultaneously, ensure in this end dense structure of abrasive disc foundry goods, do not have shrinkage porosite, shrinkage cavity defect to produce.
As preferably, upper swage described in the utility model and lower swage use cast iron quality.
This utility model compared with prior art, has the following advantages and effect: 1, using Sand-Faced Metal Mould Casting abrasive disc of the present utility model, abrasive disc deformation is little, product size precision high, surface roughness is good；2, using Sand-Faced Metal Mould Casting abrasive disc of the present utility model, have foundry goods to have upper and lower two-layer in a type, so under identical swage size, production efficiency can double；3, using in the abrasive disc of Sand-Faced Metal Mould Casting of the present utility model tiny at dense structure, crystal grain, the wearability of product is good.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model embodiment casting abrasive disc.
Fig. 2 is this utility model embodiment Sand-Faced Metal Mould Casting abrasive disc process structure arrangement schematic diagram.
Fig. 3 be this utility model embodiment abrasive disc overflow slurry runner mud core structural representation one.
Fig. 4 be this utility model embodiment abrasive disc overflow slurry runner mud core structural representation two.
Fig. 5 is this utility model embodiment Sand-Faced Metal Mould Casting abrasive disc casting mold structure schematic diagram.
Fig. 6 is this utility model embodiment Sand-Faced Metal Mould Casting abrasive disc casting process state diagram one.
Fig. 7 is this utility model embodiment Sand-Faced Metal Mould Casting abrasive disc casting process state diagram two.
Fig. 8 is this utility model embodiment Sand-Faced Metal Mould Casting abrasive disc casting process state diagram three.
In figure: upper swage 1, lower swage 2, abrasive disc overflows and starches runner mud core 3, upper strata abrasive disc overflows and starches runner work surface 4, and lower floor's abrasive disc overflows and starches runner work surface 5, sprue 6, cross gate 7, rising head and ingate 8, riser runner 9, abrasive disc foundry goods 10, upper strata abrasive disc casting mold die cavity 11, lower floor's abrasive disc casting mold die cavity 12, molten iron 13, lower floor abrasive disc casting mold aerofluxus A, upper strata abrasive disc casting mold aerofluxus B, riser runner aerofluxus C, molten iron level H in casting mold.
Detailed description of the invention
The utility model is described in further detail below in conjunction with the accompanying drawings and by embodiment, and following example are that this utility model is not limited to following example to explanation of the present utility model.
Embodiment.
See Fig. 1 to Fig. 8, upper swage 1 and lower swage 2 in the present embodiment are mutually matched, abrasive disc overflows slurry runner mud core 3 between upper swage 1 and lower swage 2, abrasive disc overflow slurry runner mud core 3 top and bottom be respectively upper strata abrasive disc overflow slurry runner work surface 4 and lower floor's abrasive disc overflow slurry runner work surface 5, abrasive disc overflows and starches a 1/4 Sand-Faced Metal Mould Casting running gate system making whole casting mold of runner mud core 3, makes corresponding part riser runner 9 in other end.
Seeing Fig. 2, for Sand-Faced Metal Mould Casting abrasive disc process structure arrangement schematic diagram, abrasive disc foundry goods 10 is eight points of two-layers, and rising head and ingate 8 are four, and riser runner 9 is eight, and abrasive disc excessive slurry runner mud core 3 is four pieces.
Seeing Fig. 3, the structural representation of the slurry runner mud core 3 that overflows for abrasive disc, in running gate system: sprue 6 is 1/4 sprue 6, cross gate 7 is 1/4 cross gate 7, and rising head and ingate 8 are 1/2 rising head and 1 ingate, and riser runner 9 is part riser runner 9.
Seeing Fig. 5, upper swage 1 and abrasive disc in the present embodiment overflow to be formed between slurry runner mud core 3 and form lower floor's abrasive disc casting mold die cavity 12 between upper strata abrasive disc casting mold die cavity 11, lower swage 2 and abrasive disc excessive slurry runner mud core 3.
The production process of the present embodiment a kind of Sand-Faced Metal Mould Casting abrasive disc is as follows: lower swage 2 makes lower floor's abrasive disc whole casting molds in addition to the slurry runner work surface that overflows and the core print die cavity of the slurry runner work surface mud core that overflows, upper swage 1 makes the upper strata abrasive disc whole casting mold die cavities in addition to the slurry runner work surface that overflows, running gate system is made in one end of the abrasive disc casting mold die cavity of upper swage 1 and lower swage 2, at the other end of abrasive disc casting mold die cavity, the riser runner 9 of type cavity gas aerofluxus when making casting-up；Abrasive disc overflow slurry runner mud core 3 upper and lower plane make respectively upper strata abrasive disc overflow slurry runner work surface 4 and lower floor's abrasive disc overflow slurry runner work surface 5, overflow at this abrasive disc simultaneously and starch a 1/4 Sand-Faced Metal Mould Casting running gate system making whole casting mold of runner mud core 3, make corresponding part riser runner 9 in other end；The slurry runner mud core 3 that overflow by abrasive disc is positioned in the mud core core print die cavity of lower swage 2 one by one, subsequently by the mould assembling of upper swage 1, thus forms upper and lower two-layer abrasive disc casting mold die cavity, and lower floor's abrasive disc overflows and starches runner work surface 5 upward, and upper strata abrasive disc overflows slurry runner work surface 4 down.
The operation principle of the present embodiment Sand-Faced Metal Mould Casting abrasive disc is as follows: upper strata abrasive disc excessive slurry runner work surface 4 and lower floor's abrasive disc excessive slurry runner work surface 5 are a plurality of excessive slurry runner composition, this slurry general a height of 10-15mm of runner that overflows, the spacing of excessive slurry runner is 5-7mm, when Sand-Faced Metal Mould Casting produces abrasive disc, the sand structure of covering of the casting mold forming this work surface is easy to fracture when Iron Mould Coated Sand moulding molding, and the most a piece of abrasive disc having the slurry runner that overflows fracture defect, then this swage casting mold is just scrapped.This is mainly when Sand-Faced Metal Mould Casting carries out covering sand molding, suitable with the thickness of the slurry runner that overflows because covering layer of sand, when molding, affected with covering sand bonding force by mould, layer of sand at excessive slurry runner is easy to fracture, cause casting mold imperfect and scrap, it is difficult to realize the Iron Mould Coated Sand batch production of abrasive disc foundry goods 10.
The present embodiment swage casting mold is formed upper and lower layer two panels abrasive disc casting mold die cavity, the non-excessive slurry runner position of abrasive disc is by Iron Mould Coated Sand molding, and the slurry runner work surface that overflows is made by mud core, the above and below of mud core is the excessive slurry runner work surface of upper and lower two abrasive discs in casting mold, this mud core is positioned over lower swage 2, then the underflow slurry runner work surface of mud core is combined with lower swage 2 casting mold, form a complete abrasive disc casting mold die cavity, and the overflow slurry runner work surface of mud core is combined with upper swage 1 casting mold, form a complete abrasive disc casting mold die cavity.
The present embodiment is thin-walled planar foundry goods due to abrasive disc, and it is particularly important that the mode of the lower mud core of employing forms the excessive runner of starching of abrasive disc, the then gas that mud core produces in casting process and the timely discharge covering the gas that layer of sand produces, and the most easily causes misrun defect.At abrasive disc away from the other end of running channel, place two riser runner 9 passages, so in casting process, the gas produced in casting mold can be along outlet passageway, being directly discharged to outside casting mold, it is to avoid form certain air pressure in casting mold, affect molten iron 13 fills type, after being simultaneously also beneficial to molten iron 13 casting complete, the molten iron 13 feeding effect to molten iron in casting mold 13 in running gate system.
The production being mainly used in Sand-Faced Metal Mould Casting defiberator-refiner plate of the present embodiment Sand-Faced Metal Mould Casting abrasive disc, mainly the slurry runner work surface that overflows in abrasive disc is made by mud core, during so the abrasive disc Sand-Faced Metal Mould Casting in a type more than one piece produces, when can avoid because covering sand molding molding, because bar a certain in abrasive disc excessive slurry runner fractures, and whole abrasive disc Iron Mould Coated Sand casting mold is caused to scrap.
Production process of the present utility model is such that lower swage 2 and makes lower floor's abrasive disc whole casting molds in addition to the slurry runner work surface that overflows and the core print die cavity of the slurry runner work surface mud core that overflows, upper swage 1 makes the upper strata abrasive disc whole casting molds in addition to the slurry runner work surface that overflows, running gate system is made in one end of the abrasive disc casting mold of upper swage 1 and lower swage 2, at the other end of abrasive disc casting mold, the riser runner 9 of type cavity gas aerofluxus when making casting-up.
See Fig. 3-Fig. 4, overflow the structural representation of slurry runner mud core 3 for abrasive disc: makes the excessive slurry runner work surface of abrasive disc respectively in the overflow upper and lower plane of slurry runner mud core 3 of abrasive disc, simultaneously in a 1/4 Sand-Faced Metal Mould Casting running gate system making whole casting mold of this mud core, make corresponding part riser runner 9 in other end.Being positioned over one by one by mud core in the mud core core print die cavity of lower swage 2, subsequently by the mould assembling of upper swage 1, thus form upper and lower two-layer abrasive disc casting mold die cavity, upward, the excessive slurry runner work surface of upper strata abrasive disc is down for the excessive slurry runner work surface of lower floor's abrasive disc.
See Fig. 6-Fig. 8, in the casting mold of Fig. 6, molten iron level H is that lower floor's abrasive disc fills in type, by lower floor abrasive disc casting mold aerofluxus A, in the casting mold of Fig. 7, molten iron level H is that upper strata abrasive disc fills in type, by upper strata abrasive disc casting mold aerofluxus B, in the casting mold of Fig. 8, molten iron level H is during upper and lower layer abrasive disc is each filled with, by riser runner aerofluxus C.
Sand-Faced Metal Mould Casting abrasive disc molten iron casting state: molten iron 13 initially enters lower floor's abrasive disc casting mold die cavity 12, lower floor's casting mold die cavity starts to be filled with molten iron 13, lower floor's casting mold covers resin in layer of sand and mud core therewith and produces a large amount of gases, these gas is discharged in air by the riser runner 9 of abrasive disc casting mold other end, this ensures that there in casting process will not because of in casting mold gas pressure excessive, cause lower floor's abrasive disc slurry runner work surface that overflows to fill that type is imperfect causes cast waste product.After lower floor's abrasive disc casting mold die cavity 12 is full of, pouring molten iron 13 enters upper strata abrasive disc casting mold die cavity 11, upper strata casting mold covers the resin in layer of sand and mud core and produces a large amount of gases, riser runner 9 again by abrasive disc casting mold die cavity 11 other end, upper strata is discharged in air, thus ensure upper strata abrasive disc foundry goods to fill type complete.
The situation using this utility model can avoid completely causing casting mold to scrap because the overflow launder emery stick on excessive slurry runner work surface fractures in Iron Mould Coated Sand modeling process occurs.Two riser runners 9 in abrasive disc running gate system other end then ensure that the gas that casting mold produces in molten iron 13 casting process can discharge casting mold die cavity smoothly, so that it is guaranteed that thin-walled abrasive disc particularly abrasive disc overflows, slurry runner can be poured into a mould completely, this rising head can also carry out liquid molten iron 13 feeding to the abrasive disc foundry goods 10 of rising head end in process of setting simultaneously, ensure in this end dense structure of abrasive disc foundry goods 10, do not have shrinkage porosite, shrinkage cavity defect to produce.The diameter of riser runner 9 is typically based on abrasive disc thickness at 30-40mm, and feeding head diameter is at 60-90mm.
The present embodiment uses the mode that Sand-Faced Metal Mould Casting produces, size according to swage, can four, a type or eight abrasive discs of a type, abrasive disc overflows and starches pipes' analysis, the most directly make on swage, but use external mud core to make, the mode that lower core shapes, when ensureing to produce, overflow and starch the complete of runner in the refining work face of abrasive disc, mud core is upper simultaneously, lower two sides forms the excessive slurry runner work surface of two abrasive discs, can be formed after lower core, the complete casting mold die cavity of lower two pieces of abrasive discs, can obtain after cast, lower two pieces of abrasive discs, adopt and produce abrasive disc in this way, double-deck Foundry Production can be realized in Iron Mould Coated Sand casting mold, on the basis of original, production efficiency can double.
Upper swage 1 and lower swage 2 in the present embodiment use cast iron quality.
By above-mentioned elaboration, those skilled in the art can implement.
Furthermore, it is necessary to illustrate, the specific embodiment described in this specification, the shape of its parts and components, be named title etc. can be different, and the above content described in this specification is only to this utility model structure example explanation.All equivalence changes done according to structure, feature and the principle described in this utility model inventional idea or simple change, be all included in the protection domain of this utility model patent.Described specific embodiment can be made various amendment or supplements or use similar mode to substitute by this utility model person of ordinary skill in the field; without departing from structure of the present utility model or surmount scope defined in the claims, protection domain of the present utility model all should be belonged to.
Claims (6)
1. the casting mold structure of a Sand-Faced Metal Mould Casting abrasive disc, it is characterized in that: in described abrasive disc casting mold, the excessive slurry pipes' analysis of abrasive disc is formed by abrasive disc excessive slurry runner mud core, and casting mold form respectively upper and lower two panels abrasive disc casting mold cavity structure by placement abrasive disc excessive slurry runner mud core.
2. the casting mold structure of a Sand-Faced Metal Mould Casting abrasive disc, including upper swage and lower swage, on this, swage and lower swage are mutually matched, it is characterized in that: also include that abrasive disc overflows and starch runner mud core, described abrasive disc overflow slurry runner mud core between upper swage and lower swage, abrasive disc overflow slurry runner mud core top and bottom be respectively upper strata abrasive disc overflow slurry runner work surface and lower floor's abrasive disc overflow slurry runner work surface.
The casting mold structure of Sand-Faced Metal Mould Casting abrasive disc the most according to claim 1 and 2, it is characterised in that: described abrasive disc overflows and starches a 1/4 Sand-Faced Metal Mould Casting running gate system making whole casting mold of runner mud core, makes corresponding part riser runner in other end.
The casting mold structure of Sand-Faced Metal Mould Casting abrasive disc the most according to claim 3, it is characterised in that: described running gate system includes sprue, cross gate, rising head and ingate.
The casting mold structure of Sand-Faced Metal Mould Casting abrasive disc the most according to claim 2, it is characterised in that: described lower floor abrasive disc overflows and starches runner work surface upward, and upper strata abrasive disc overflows slurry runner work surface down.
The casting mold structure of Sand-Faced Metal Mould Casting abrasive disc the most according to claim 2, it is characterised in that: described upper swage and lower swage use cast iron quality.
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| CN201620304202.XU CN205551391U (en) | 2016-04-13 | 2016-04-13 | Casting mould structure of sand -lined metal mould casting abrasive disc |
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| CN201620304202.XU CN205551391U (en) | 2016-04-13 | 2016-04-13 | Casting mould structure of sand -lined metal mould casting abrasive disc |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105728653A (en) * | 2016-04-13 | 2016-07-06 | 浙江省机电设计研究院有限公司 | Casting mold structure of sand faced-iron mold casting abrasive disc and method for casting abrasive disc |
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- 2016-04-13 CN CN201620304202.XU patent/CN205551391U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105728653A (en) * | 2016-04-13 | 2016-07-06 | 浙江省机电设计研究院有限公司 | Casting mold structure of sand faced-iron mold casting abrasive disc and method for casting abrasive disc |
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