CN1069561C - Mill ball casting equipment - Google Patents
Mill ball casting equipment Download PDFInfo
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- CN1069561C CN1069561C CN94120153A CN94120153A CN1069561C CN 1069561 C CN1069561 C CN 1069561C CN 94120153 A CN94120153 A CN 94120153A CN 94120153 A CN94120153 A CN 94120153A CN 1069561 C CN1069561 C CN 1069561C
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- ball
- abrading
- hemisphere
- running channel
- bed die
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Abstract
The present invention is composed of a grinding ball making technological equipment system and a vibration table. When the device of the present invention is used for making grinding balls, no iron melt exists in straight running channels, longitudinal running channels and a transverse running channels after the grinding balls are cast. The present invention is an unprecedented advanced technology. When the technology is used for producing grinding balls, the yield of grinding balls can be from 80 to 90%; the iron melt of the grinding balls is crystallized and solidified under the action of the vibration, so that tree crystals of the grinding balls are broken by the action of the vibration; thus, the present invention restricts the enlargement of tree crystals and refines the crystal structure of the grinding balls; metal atoms of castings are arranged closely; meanwhile, the present invention is favorable for discharging slag and gas of liquid iron melt, and greatly enhances the combination property of the grinding balls.
Description
The present invention relates to a kind of casting device, particularly a kind of mill ball casting equipment.
At present domestic production abrading-ball technology mainly contains three kinds of sand mold, metal mold and semipermanent molds, sand mold is divided into two-part mo(u)lding and multiple mould again, all these methods not only yield rate are low, and can't overcome sand holes, cinder hole, pore, shrinkage cavity, shrinkage porosite, the crackle that abrading-ball is produced aborning, and produce serious peeling phenomenon when using, the crystallization and freezing of abrading-ball is uncontrolled fully in these production methods simultaneously, takes place under the also uncontrollable situation.So the crystalline structure of abrading-ball is thick, abrasion resistance is low, the unit consumption amount height of abrading-ball.Chinese patent 89102884.6 discloses a kind of metallic-mould group-casting technology method of abrading-ball.Disclose a kind of metal list ball casting technique in the middle of the prior art of this patent application, its advantage is: eliminated the shrinkage cavity of abrading-ball heart portion, shrinkage defect basically.But also there is multinomial deficiency, 1. single ball casting, top pouring easily makes bits enter die cavity, causes abrading-ball in use broken.2. be unsuitable for casting the little abrading-ball of specification.3. single ball casting production efficiency is low, and casting time is long, and molten metal is easy to oxidation, more can not satisfy the needs that mechanization is produced.
The purpose of this invention is to provide a kind of abrading-ball yield rate and every combination property and all improve a lot, casting time is short, production efficiency is high and be suitable for the mill ball casting equipment of mechanization operation.
The objective of the invention is to realize by following structure: the present invention is a kind of mill ball casting equipment, form by abrading-ball technological equipment for making and shake table, the abrading-ball technological equipment for making has: the as a whole structure of metal mold bed die, have multiple row hemisphere counterdie on the bed die, each hemisphere counterdie all is connected with a cylinder on the metal mold bed die, making up patrix with the hemisphere that is molded as on hemisphere combination patrix filler and the metal mold hemisphere is positioned among the cylinder of metal mold bed die, make the feeding chamber with molding sand, the feeding chamber is positioned on the hemisphere patrix, the feeding chamber is a cone, the big end of cone is communicated with the ingate of hemisphere combination patrix, each self-corresponding vertical running channel of the small end of cone and feeding chamber is communicated with, each hemisphere combination patrix all is connected with an independent feeding chamber, be processed into filler and have vertical running channel, cross gate, overflow launder, the middle boxes of spout hole, vertical running channel, cross gate is interconnected, overflow launder is connected with the end of cross gate, middle boxes is placed on the metal mold bed die by the centralized positioning pin, the top box made from filler with sprue is positioned at above the middle boxes, Measuring glass is installed on the top box, on Measuring glass, have stairstepping index line clearly, filter is installed in the Measuring glass, blanking plug, fastener is fixed on the abrading-ball technological equipment for making on the shaking platform.
The present invention be a kind of iron (steel) water that relates in when cast, be to make up the mill ball casting equipment that patrix and metal mold bed die, shaking platform, vibrating motor combine with blanking plug, Measuring glass, filter, top box, middle boxes, hemisphere.Make abrading-ball with this device and not only make abrading-ball output height, speed fast, and the most outstanding feature be abrading-ball at the time marquis molten iron of casting is to flow into longitudinal and transverse running channel from sprue, enter the die cavity of abrading-ball at last.Treat that abrading-ball does not have molten iron after solidifying in sprue and longitudinal and transverse running channel, this is a kind of unprecedented advanced technology.Use this technology to produce abrading-ball, can make the casting yield of abrading-ball molten iron reach 80-90%, abrading-ball molten iron crystallization under vibrations simultaneously, this fundamentally refinement the crystalline structure of abrading-ball, the combination property of abrading-ball is greatly improved, the appearance of this technology will change the backward state of China's abrading-ball production technology, implement this technology and will make enterprise obtain favorable economic benefit and social benefit.
The invention provides a kind of abrading-ball manufacturing process system that combines by metal mold bed die, hemisphere combination patrix, middle boxes, top box, Measuring glass.And be fixed on this system on the shaking platform of shake table with fastener, after abrading-ball begins cast, vibrating motor drags shaking platform immediately makes it produce vibration, at this moment the die cavity of abrading-ball and feeding chamber thereof will according to designing requirement like that successively one by one by molten iron water full after, its unnecessary molten iron can flow out from overflow launder.So just make remaining the molten iron of certain altitude in the longitudinal and transverse running channel, these molten iron carry out can promptly flowing in the feeding chamber when liquid state is shunk at abrading-ball and feeding chamber thereof, realize that this mill ball casting equipment does not have molten iron in cross gate after the cast and vertical running channel, this is one of principal character of the present invention, abrading-ball removing from mould after this structure helps casting, and make existing middle boxes, top box continue to use.Abrading-ball is given a shock in crystallization, in crystallization in such cases, can make the atomic arrangement of foundry goods metal very tight, crystallization crystal grain is very thin, help liquid molten iron deslagging, degasification, feeding, the feeding cavity volume of abrading-ball is reduced greatly, simultaneously the crystallization and the abrading-ball residual stress of solidifying are very little under the vibration situation, this is not use the vibrations technique device to make abrading-ball as the present invention in vibrations technology in the past, this is again another principal character of the present invention, and employed centralized positioning pin is to release first in this device, it is with the domestic and international button case positioner structure compared of using is simple at present, accurate positioning, easy to operate button case positioner, the locating hole of sandbox is a square opening, and its use has just constituted the 3rd principal character of the present invention.So use apparatus of the present invention when cast grinding ball or other foundry goods, the casting yield of molten iron is improved effectively, but also can eliminate abrading-ball sand holes, pore, cinder hole, shrinkage cavity, shrinkage porosite, crackle, fragmentation, defective such as peel off, this just can obtain high-quality abrading-ball, simultaneously easy to operate, the labor productivity height.
When reaching quantitative index line in Measuring glass after, the amount of pouring molten iron stops cast immediately, and raise or carry away blanking plug, make molten iron pass through filter, sprue, vertical running channel, behind the cross gate, arriving the feeding chamber enters among the abrading-ball die cavity through ingate, when indulging of whole abrading-balls, molten iron reaches after the h height in the cross gate, unnecessary molten iron will flow to spout hole injection hand by overflow launder and step on bag, the Vibration on Start-up motor makes shaking platform produce vibration immediately when abrading-ball begins to pour into a mould, after casting solidification, system unloads from shaking platform with the abrading-ball technological equipment for making.Treat that the abrading-ball surface temperature gets final product depanning when dropping to 1100 ℃.
The feeding chamber of apparatus of the present invention is a cone, the big end of cone is communicated with the ingate of hemisphere patrix, the advantage of this structure is: so just can guarantee abrading-ball solidify after ingate solidify again, solidify in last feeding chamber, can guarantee to supply with abrading-ball required molten iron when liquid state contraction and solidification shrinkage like this, thereby abrading-ball can not produce shrinkage cavity after casting, shrinkage porosite, if what be communicated with hemisphere patrix ingate is the circular cone small end, ingate is at first solidified, abrading-ball can not get feeding when liquid state, due effect is not brought into play in the feeding chamber, and abrading-ball will produce shrinkage cavity, defectives such as shrinkage porosite.In the metal mold bed die, place the hemisphere patrix, or sand mold feeding chamber put among the metal mold hemisphere combination patrix, also can directly directly make hemisphere combination patrix, insert again in the metal mold bed die with abrading-ball feeding chamber and ingate with metal mold hemisphere patrix and Modeling Material.
The cross section structure shape of the longitudinal and transverse running channel in apparatus of the present invention can guarantee that abrading-ball is rapid and Methodistic the abrading-ball die cavity is filled up molten iron, simultaneously when molten iron surpasses the h height in longitudinal and transverse running channel, unnecessary molten iron will flow out from overflow launder, the molten iron of staying longitudinal and transverse running channel can flow in the feeding chamber, liquid molten iron in the feeding chamber can produce volume contraction, the molten iron of longitudinal and transverse running channel can flow in the feeding chamber, realizes apparatus of the present invention no molten iron existence in sprue and the longitudinal and transverse running channel behind casting solidification to making.The raising that this has guaranteed the casting yield of abrading-ball molten iron has also realized the single contraction of abrading-ball.The abrading-ball of single free shrink can not produce casting crack and bigger internal stress, so can prolong the holding time of abrading-ball in metal mold yet.
This contrive equipment can be determined the flow process of molten iron maximum in running channel according to the flowability of molten iron, this invention now once pours into 20,20,30,30,42,56,72,90,156 respectively with the abrading-ball of 40 millimeters of diameter phi 120, φ 110, φ 100, φ 90, φ 80, φ 70, φ 60, φ 50, φ, owing to do not have molten iron in the longitudinal and transverse running channel, can reach 80-90% so produce the casting yield of their molten iron of abrading-ball of all size.
Apparatus of the present invention are owing to use vibrating motor to drag shaking platform, the crystallization of abrading-ball and to solidify be to carry out under vibrating like this, and it is broken to make that skeleton is shaken, and it is grown up be restricted, and the broken crystal that shaken can form new crystallization nucleus.This can make the crystalline structure refinement of abrading-ball (foundry goods) undoubtedly, thereby has improved the combination property of abrading-ball.This shock structure can make the ingate of abrading-ball and the volume in feeding chamber greatly reduce.
The following embodiment of concrete structure of the present invention provides.
Fig. 1 is the profile that proposes mill ball casting equipment according to the present invention.
Fig. 2 is that the A of Fig. 1 is to view
Fig. 3 is that the B of Fig. 2 is to view
Fig. 4 is the K-K cutaway view of Fig. 2
Describe foundation in detail below in conjunction with Fig. 1, Fig. 2, Fig. 3, Fig. 4, the details and the working condition of the concrete device that the present invention proposes.
The present invention as shown in Figure 1, be a kind of mill ball casting equipment, it is characterized in that: form by abrading-ball technological equipment for making and shake table, the abrading-ball technological equipment for making has: the as a whole structure of metal mold bed die, have multiple row hemisphere counterdie on the bed die, each hemisphere counterdie all is connected with a cylinder on the metal mold bed die body, be positioned among the cylinder of metal mold bed die 1 with the hemisphere combination patrix 2 that is molded as on hemisphere combination patrix filler 3 and the hemisphere, make feeding chamber 4 with molding sand, feeding chamber 4 is positioned on the hemisphere patrix, the feeding chamber is a cone, the big end of cone is communicated with the ingate of hemisphere patrix, the small end of cone is communicated with feeding chamber 4 each self-corresponding vertical running channel 6, each hemisphere patrix all is connected with an independent feeding chamber 4, be processed into filler 3 and have vertical running channel 6, cross gate 7, overflow launder 24, the middle boxes 5 of spout hole 423, vertical running channel 6, cross gate 7 is interconnected, overflow launder 24 is connected with the not end of cross gate 7, middle boxes 5 is placed on the metal mold bed die by centralized positioning pin 14, the top box made from filler 3 with sprue 12 8 is positioned at above the middle boxes, Measuring glass 9 is installed on the top box, on Measuring glass, have stairstepping index line 13 clearly, filter 10 is installed in the Measuring glass, blanking plug 11, shake table is by shaking platform 16 and vibrating motor 17 and go up location bowl 18; Following location bowl 20 is formed with steel ball 19 and shake table support 21, and fastener 15 is fixed on the abrading-ball technological equipment for making on the shaking platform.When manufacturing and designing metal mold bed die 1, the centre-to-centre spacing e between two balls should be than the radius sum of two balls greater than 10-80mm.The height h=0.5-10mm at overflow launder 24 places, promptly longitudinal and transverse running channel cross section lower width b=0-12mm, when b was zero, promptly the cross section of vertical running channel was a triangle, also can adopt circular arc or curve transition herein simultaneously.
Apparatus of the present invention mainly are made up of abrading-ball manufacturing process system and shake table.As shown in Figure 1, abrading-ball technological equipment for making system has: the hemisphere patrix made from hemisphere patrix filler 32, and be placed in the metal mold bed die 1.The also feeding chamber 4 that can manufacture with sand mold and putting it in the unanimous genotype hemisphere patrix.Make feeding chamber 4 and put it in the hemisphere patrix with molding sand, be processed into middle boxes 5 and it is passed through the central square alignment pin represented as Fig. 2 with filler 3 again with vertical running channel 6 cross gates 7, overflow launder 24, spout hole 23.As shown in Figure 3 and Figure 4, this centralized positioning pin is two mutually perpendicular center lines that utilize on the model die joint, and it is selected a bit as central square alignment pin of upper and lower case on two edge, it is because the distortion that takes place in this case that this localization method has solved the orientation problem of understanding the distortion of occurred level direction after metal pattern is heated, its center line can not change, so locate with center line, and the centralized positioning device has utilized these characteristics technically just.So it is very unique technically, alignment pin 14 is placed on the metal mold bed die, the top box made from filler 3 with sprue 12 8 again, Measuring glass 9 is installed on its top box, on Measuring glass, make the quantitative index line 13 of stairstepping that has clearly, filter 10, blanking plug 11 are installed in Measuring glass, and top box are placed on the middle boxes by the centralized positioning pin.So just constituted the abrading-ball process system.
Shake table is by vibration flat 16 and vibrating motor 17 and goes up location bowl 18 that following location bowl 20 is formed with steel ball 19 and shake table support 21.With fastener 15 abrading-ball technological equipment for making system is fixed on the shaking platform of shake table, this is an architectural feature of the present invention.
The concrete enforcement of the present invention is such: by Fig. 1 manufacturing or purchase relevant technological equipment and equipment.As: purchase the longitudinal and transverse running channel mould of unanimous genotype bed die in vibrating motor and electrical equipment, manufacturing shake table and the abrading-ball technological equipment for making system, feeding cavity mould, location pin clamping device, hand are stepped on bag 22 and are installed by Fig. 1.
When manufacturing and designing the metal mold bed die, the centre-to-centre spacing e between two balls should be than the radius sum of two balls greater than 10-80mm, and the height at the poor place of overflow is h=0.5-10mm, and longitudinal and transverse running channel cross section lower width b=0-12mm.When b is zero.Be that longitudinal and transverse running channel cross section is a triangle, also can adopt circular arc or curve transition herein simultaneously.
In order to guarantee longitudinal and transverse running channel not remaining molten iron after cast in this system, then the cumulative volume that sectional area constituted of the height h at overflow launder place and longitudinal and transverse running channel be whole abrading-balls and feeding chamber thereof the die cavity cumulative volume and 3-7%.
Should notice in the mill that the baseplane of the depth of parallelism, particularly longitudinal and transverse running channel on upper and lower plane will control well with the parallel of horizontal plane during frame.Otherwise just cause the abrading-ball that does not have molten iron or molten iron to be higher than h in the longitudinal and transverse running channel that has thereby have to water less than, misrun at all or make the remaining molten iron of longitudinal and transverse running channel, this is noticeable.
At last with abrading-ball technological equipment for making system with fastener 15 fixedly on the shaking platform, thereby constituted apparatus of the present invention.
When cast, after the height of molten iron in Measuring glass reaches the quantitative index line of stairstepping, should stop cast immediately, if this moment, molten iron temperature was very high, be liftable blanking plug after can molten iron temperature reaching pouring temperature.Abrading-ball begins cast, and the Vibration on Start-up motor makes molten iron crystallisation by cooling under vibration simultaneously, and the employed oscillation intensity of apparatus of the present invention is every square centimeter of 8-9 kilogram, and therefore the sand mold part to mould can not form fracture phenomena when vibration.When cooling off 1100 ℃ in this device, abrading-ball can carry out air cooling by removing from mould.Subsequently with the abrading-ball that produced through the specific purpose tool polishing after, only need carry out after the process annealing finished product.
Apparatus of the present invention are used for abrading-ball production, will not only make the casting yield height of molten iron, good combination property, and can save the energy, and reduce cost, reduce labor intensity and enhance productivity.This working of an invention will bring profound influence to abrading-ball production, will the exploitation of abrading-ball production technology be attained a new height.This device also is applicable to the cast casting of other types simultaneously.
Claims (4)
1, a kind of mill ball casting equipment, it is characterized in that: form by abrading-ball technological equipment for making and shake table, the abrading-ball technological equipment for making has: the as a whole structure of metal mold bed die, have multiple row hemisphere counterdie on the bed die, each hemisphere counterdie all is connected with a cylinder on the metal mold bed die, be positioned among the cylinder of metal mold bed die (1) with the hemisphere combination patrix (2) that is molded as on hemisphere combination patrix filler (3) and the hemisphere, make feeding chamber (4) with molding sand, feeding chamber (4) is positioned on the hemisphere patrix, the feeding chamber is a cone, the big end of cone is communicated with the ingate of hemisphere patrix, each self-corresponding vertical running channel (6) of the small end of cone and feeding chamber (4) is communicated with, each hemisphere patrix all is connected with an independent feeding chamber (4), be processed into filler (3) and have vertical running channel (6), cross gate (7), overflow launder (24), the middle boxes (5) of spout hole (23), vertical running channel (6), cross gate (7) is interconnected, overflow launder (24) is connected with the not end of cross gate (7), middle boxes (5) is placed on the metal mold bed die by centralized positioning pin (14), the top box made from filler (3) with sprue (12) (8) is positioned at middle boxes top, Measuring glass (9) is installed on the top box, on Measuring glass, have stairstepping index line (13) clearly, filter (10) is installed in the Measuring glass, blanking plug (11), fastener (15) is fixed on the abrading-ball technological equipment for making on the shaking platform.
2, mill ball casting equipment according to claim 1 is characterized in that: when manufacturing and designing metal mold bed die (1), the centre-to-centre spacing between two balls (e) should be than the radius sum of two balls greater than 10-80mm.
3, mill ball casting equipment according to claim 1 and 2, it is characterized in that: the height h=0.5-10mm that overflow launder (24) is located, promptly longitudinal and transverse running channel cross section lower width b=0-12mm is when b is zero, promptly the cross section of vertical running channel is a triangle, also can adopt circular arc or curve transition herein simultaneously.
4, mill ball casting equipment according to claim 1 and 2 is characterized in that: shake table is by shaking platform (16) and vibrating motor (17) and go up location bowl (18), and following location bowl (20) is formed with steel ball (19) and shake table support (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94120153A CN1069561C (en) | 1994-12-20 | 1994-12-20 | Mill ball casting equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94120153A CN1069561C (en) | 1994-12-20 | 1994-12-20 | Mill ball casting equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1139029A CN1139029A (en) | 1997-01-01 |
| CN1069561C true CN1069561C (en) | 2001-08-15 |
Family
ID=5039484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN94120153A Expired - Fee Related CN1069561C (en) | 1994-12-20 | 1994-12-20 | Mill ball casting equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1069561C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100450671C (en) * | 2007-01-13 | 2009-01-14 | 王仲珏 | Vertical chain driven grinding ball continuous casting production line |
| CN101623745B (en) * | 2009-08-13 | 2013-03-13 | 十堰知名实业发展有限公司 | Process method of in-series pouring multiple lost moulds in one box |
| CN102266932A (en) * | 2011-07-11 | 2011-12-07 | 山东华民钢球股份有限公司 | Preparation method for metal grinding ball by liquid extrusion molding and rolling |
| CN107838404A (en) * | 2017-11-17 | 2018-03-27 | 马鞍山市海华金属制品有限公司 | A kind of cast grinding ball cooling device |
| CN111215583A (en) * | 2020-03-13 | 2020-06-02 | 马鞍山金泰耐磨材料实业有限公司 | Steel ball casting mould that performance is excellent |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0178296A2 (en) * | 1984-10-12 | 1986-04-16 | N. Milos Prof. Dr. Tomovic | Permanent mould with insert for casting mill balls and other crushing elements |
| CN1038780A (en) * | 1989-04-17 | 1990-01-17 | 丰润县合金铸件厂 | The metallic-mould group-casting technology method of abrading-ball |
| CN2052691U (en) * | 1989-04-17 | 1990-02-14 | 丰润县合金铸件厂 | Metallic casting mould for ball grinding |
| CN2099625U (en) * | 1991-04-25 | 1992-03-25 | 蔡建军 | Rotating casting grinding ball mould |
| CN2177547Y (en) * | 1993-12-10 | 1994-09-21 | 马鞍山市金属耐磨铸锻材料公司 | Metal type multi-ball casting combination mould with thermal insulation cap |
-
1994
- 1994-12-20 CN CN94120153A patent/CN1069561C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0178296A2 (en) * | 1984-10-12 | 1986-04-16 | N. Milos Prof. Dr. Tomovic | Permanent mould with insert for casting mill balls and other crushing elements |
| CN1038780A (en) * | 1989-04-17 | 1990-01-17 | 丰润县合金铸件厂 | The metallic-mould group-casting technology method of abrading-ball |
| CN2052691U (en) * | 1989-04-17 | 1990-02-14 | 丰润县合金铸件厂 | Metallic casting mould for ball grinding |
| CN2099625U (en) * | 1991-04-25 | 1992-03-25 | 蔡建军 | Rotating casting grinding ball mould |
| CN2177547Y (en) * | 1993-12-10 | 1994-09-21 | 马鞍山市金属耐磨铸锻材料公司 | Metal type multi-ball casting combination mould with thermal insulation cap |
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| Publication number | Publication date |
|---|---|
| CN1139029A (en) | 1997-01-01 |
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