CN106964756A - A kind of vertical pattern grouping mould of steel-casting and its pattern grouping method - Google Patents
A kind of vertical pattern grouping mould of steel-casting and its pattern grouping method Download PDFInfo
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- CN106964756A CN106964756A CN201710000023.6A CN201710000023A CN106964756A CN 106964756 A CN106964756 A CN 106964756A CN 201710000023 A CN201710000023 A CN 201710000023A CN 106964756 A CN106964756 A CN 106964756A
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/20—Stack moulds, i.e. arrangement of multiple moulds or flasks
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- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The invention discloses a kind of vertical pattern grouping mould of steel-casting and its pattern grouping method, belong to metalwork casting field.For process present in prior art is more, cycle length, productivity ratio is low, cost is high, product quality stability is poor, the low problem of product qualification rate, and the invention provides a kind of vertical pattern grouping mould of steel-casting and its pattern grouping method.Including bottom plate, cover plate, bottom plate and cover plate are fixed by bolt, are constituted to be provided with mold cavity, mold cavity and are poured die piece.Pouring die piece includes die bed block, medium-sized piece, mo(u)ld top half block, it is groove in the middle of described die bed block, surrounding is correspondingly arranged on cast structure, medium-sized piece of middle part is through hole, surrounding is provided with some cast structures, it is provided with each cast structure in the middle of a through hole, mo(u)ld top half block and is provided with through hole, surrounding is correspondingly arranged on cast structure.It can realize that process is few, the cycle is short, productivity ratio is high, cost is low, product quality is stable, product qualification rate is high.
Description
Technical field
The present invention relates to metalwork casting field, more specifically to a kind of vertical pattern grouping mould of steel-casting and its string
Casting method.
Background technology
Tooth covers class wear resistance castings, is small casting steel of the substance between 1-10 kilograms, and prior art is mostly using essence
Close casting (lost-wax process) production.Although such a method has that dimensional accuracy is high, specious advantage, but the production cycle is long,
Environmental pollution is serious, and cost is high, and labor strength is big.Hot investment casting (lost-wax process) is to use natural wax material or synthesis wax material,
Cast shape is pressed into a mold, tree is then assembled into, and tree is then invaded solid in hanging sand, immersion curing agent after wetting in coating
Change, 11-17 roads sand is so hung up repeatedly, casting is bigger, and the hanging sand number of plies is more；Hang shell reach after the number of plies of technological requirement, it is necessary to
It will be dewaxed in tree immersion boiling water；Electric furnace must also be put into formwork and toast at high temperature and calcination by having taken off after wax, to obtain enough
Form strength and degree of drying, be subsequently used for cast.Such a technique productions process is various, and curing agent it is general using ammonium chloride as
It is main, this solution highly volatile ammonia, severe contamination operating environment.
Existing sand casting typically uses horizontal parting and cast, and one case two pieces or four or eight are small-sized producing
Had the following disadvantages during casting：(1) single case low production efficiency, only has tens of kilograms of casting per case；(2) because casting weight is small,
Increased frequency is poured into a mould, it is long per Baogang's water duration of pouring to cause molten steel cooling to decline substantially, it is easy to cold shut, water wave occur, pour
The defects such as deficiency；(3) need to put into more complicated mould, put into the frocks, fixed investment such as substantial amounts of sandbox and sand mold alignment pin
It is larger；(4) due to the reason such as the position gap of mould rigging error, sand mold alignment pin is larger, the size essence of sand casting is caused
Degree 2-3 grade lower than hot investment casting.
Chinese patent application, application number 201310735518.5, discloses a kind of small-sized at publication date on April 23rd, 2014
The cored-up mould pattern grouping upright casting method of steel-casting, the invention discloses a kind of cored-up mould pattern grouping upright casting side of small casting steel
Method, comprises the following steps：(1) casting form for being intended to casting is designed as left and right parting, is placed in left and right template, and template is certainly
Band sandbox；(2) during moulding, an aspect sand is covered on apperance surface；(3) floor sand is filled up in left and right sandbox and is compressed real；
(4) molding sand is hardened；(5) left and right sand mold is taken out, and carries out inner chamber core and sprue cup；(6) by inner chamber core respectively with it is left,
Right sand mold is assembled together to form casting mold, and left and right sand mold is positioned using concavo-convex；(7) multiple casting molds are put into special locking fixture
Bunchiness is combined, casting mold is locked and sprue cup is installed；(8) by sprue cup casting molten steel, taking-up casting of being unpacked after cooling is
Can.This invention improves production efficiency, reduces labor intensity and production cost.But this programme cast quantity is few, and efficiency is low, and
Matching is poor.
The content of the invention
1. the technical problem to be solved
For process present in prior art is more, cycle length, productivity ratio is low, cost is high, product quality stability is poor, production
The low problem of product qualification rate, the invention provides a kind of vertical pattern grouping mould of steel-casting and its pattern grouping method.It can realize process
Less, the cycle is short, productivity ratio is high, cost is low, product quality is stable, product qualification rate is high.
2. technical scheme
The purpose of the present invention is achieved through the following technical solutions.
A kind of vertical pattern grouping mould of steel-casting, including bottom plate, cover plate, bottom plate and cover plate are fixed by bolt, are constituted
It is provided with mold cavity, mold cavity, pours die piece.
Further, described die piece of pouring includes die bed block, medium-sized piece, mo(u)ld top half block, and described die bed block is arranged at
The mold cavity bottom, mo(u)ld top half block is arranged at mold cavity top, and some pieces medium-sized piece is arranged between die bed block and mo(u)ld top half block.
Further, it is groove in the middle of described die bed block, surrounding is correspondingly arranged on cast structure, and medium-sized piece of middle part is
Through hole, surrounding is provided with some cast structures, be provided with each cast structure in the middle of a through hole, mo(u)ld top half block be provided with it is logical
Hole, surrounding is correspondingly arranged on cast structure.
Further, described die bed block, medium-sized piece, mo(u)ld top half block be sand mold.The casting grade of tolerance of sand mold typically takes
CT8~CT12.Because the Modeling Material used in sand casting is cheap and easy to get, Casting mold manufacturing is easy, single-piece production to casting, into
Criticize production and a large amount of productions are adapted to, cost is low, casts structural features efficient and convenient.Die bed block, medium-sized piece, the tool of mo(u)ld top half block
Body cast structure, species is determined according to casting geometry and casting technique.Mould processing uses machining center, it is ensured that mould chi
Very little precision reaches CT8~CT12 grades；Design specialized lock core frock, is locked using nut 5.By taking this 3 aggregate measures, protect
Card casting appearance and size meets high-precision requirement.
Further, described die bed block, medium-sized piece, mo(u)ld top half block is is provided with several identical casting on each
Structure.If setting stem structure, set around middle running channel Central Symmetry, it is ensured that the stabilization and uniformity of whole die cavity.One type is more
Part is to be determined according to casting dimension and casting technique per type quantity
Further, described cover plate is square plate, is provided at both ends with flanging, edge is provided with to be matched with bolt
Mounting hole.Steel plate demand surface is smooth, prevents from, because the installation that causes of out-of-flatness is unstable, causing integral cast intracavitary to occur
Tilt, cause error.
Further, described bottom plate is square plate, and edge is provided with the mounting hole matched with bolt.It is easy to peace
Fill stability good, it is cheap using Q235 steel plate, and good casting property.
Further, described cover plate center of top is provided with sprue cup, and sprue cup is up big and down small truncated conical shape,
Middle part is hollow.High temperature resistant, impact resistance, hardness is high, and intensity is good.
Described die bed block, medium-sized piece, mo(u)ld top half block according to demand, away from middle position, the i.e. casting closer to marginal position
Structure is made, size is gradually increased in required size, according to the casting feature of different cast members, chooses different increasing coefficients,
Increase coefficient between the 0.05%-0.3% of original size basis, the thickness of sand is covered when can also be to casting gradually to be reduced,
Coefficient is reduced between the 0.05%-0.3% of original size basis.Since away from middle position, the casting material stream flowed into
Enter more slowly, and the pressure being subject to reduces, and progressively amplifies correspondingly-sized, the uniformity of its end face level has been effectively ensured.It is excellent
Product rate rises, and excellent ratio can rise more than 20%.
A kind of vertical pattern grouping mould pattern grouping method of steel-casting, comprises the following steps：
First, a type more than one piece die bed block, medium-sized piece, mo(u)ld top half block are made；
2nd, bottom plate is placed；
3rd, die bed block is placed on bottom plate；
4th, longitudinal stack places medium-sized piece of multilayer successively；
5th, mo(u)ld top half block is placed in medium-sized piece of top；
6th, cover plate is placed at the top of mo(u)ld top half block；
7th, fastened with bolt；
8th, sprue cup is placed in cover plate top；
9th, pour into a mould, described cast is cast using artificial cast or machine, and The faster the better for poring rate, and meeting running channel can
Cast with the most rapid rate of decline；
Further, described die bed block, medium-sized piece, mo(u)ld top half block when installing using concavo-convex positioning.；Pellet is using concavo-convex
Positioning, position gap is within 0.2 millimeter, it is to avoid use tool locating, tool locating can cause corresponding error, and then introduce
Second order error, more increases the error degree of product, and this programme ensures that Product Precision is high.
3. beneficial effect
Compared to prior art, the advantage of the invention is that：
(1) this programme is simple in construction, by special cover plate, mo(u)ld top half block, medium-sized piece, die bed block, Special base plate, screw bolt and nut
Connection, Stability Analysis of Structures；
(2) mould structure of this programme, simple operation, process is few, the cycle is short, productivity ratio is high, and cost is low；
(3) this programme is designed using high-precision sand mold, and precision is high, wear-resisting, is hardly damaged；
(4) this programme solves the complex operation of conventional moulding cast using one-mold multiple-member structure, and cast quantity is few etc. asks
Topic；
(5) there is screw thread outside the sprue cup in this programme center, cover plate open interior has screw thread, and two screw threads match, poured
Cup is quick and easy for installation by being threadably mounted on cover plate；
(6) diameter gradually increases the sprue channel open of vertical pouring gate from top to bottom, due to more downward, the inside and outside differential pressure that topping is received
Bigger, larger diameter can cause pressure to reduce, and inside and outside differential pressure up and down ensures balance, increase of being cast during topping is downward
Smoothly, more preferably, speed is faster, it is ensured that Product Precision and casting efficiency for efficiency.So the groove of die bed block is more than mo(u)ld top half block through hole,
Medium-sized piece of through hole from top to bottom gradually increases；When product casts completion, it is also ensured that bottom connection is more abundant, no
Easily cause because connector branch is unable to hold out when casting product is taken out in bottom, occur fracture damage product；
(7) die bed block, medium-sized piece, mo(u)ld top half block according to demand, away from middle position, i.e. the casting knot closer to marginal position
Structure, size is gradually increased in required size, according to the casting feature of different cast members, chooses different increasing coefficients, increase
Coefficient is between the 0.05%-0.3% of original size basis, and the thickness of sand is covered when can also be to casting gradually to be reduced, and is reduced
Coefficient is between the 0.05%-0.3% of original size basis.Because away from middle position, the casting material flowed into is flowed into more
Slowly, and the pressure that is subject to reduces, progressively amplify correspondingly-sized, the uniformity of its end face level has been effectively ensured.Acceptance rate
Rise, excellent ratio can rise more than 20%.
Brief description of the drawings
Fig. 1 is the agent structure schematic diagram of the present invention；
Fig. 2 is the agent structure sectional view of the present invention；
Fig. 3 is die bed block structure schematic diagram；
Fig. 4 is medium-sized block structure schematic diagram；
Fig. 5 is mo(u)ld top half block structure schematic diagram；
Fig. 6 is cover plate planar structure schematic diagram；
Fig. 7 is cover plate side structure schematic diagram；
Fig. 8 is base plate plane structural representation；
Fig. 9 is bottom panel side structural representation；
Figure 10 is sprue cup schematic top plan view；
Figure 11 is sprue cup schematic side view.
Label declaration in figure：
1st, bottom plate；2nd, die bed block；3rd, medium-sized piece；4th, mo(u)ld top half block；5th, bolt；6th, cover plate；7th, sprue cup.
Embodiment
With reference to Figure of description and specific embodiment, the present invention is described in detail.
Embodiment 1
As shown in figs. 1-11, the vertical pattern grouping mould of a kind of steel-casting, including bottom plate 1, cover plate 6, bottom plate 1 and cover plate 6 pass through
Bolt 5 is fixed, and constitutes and is provided with mold cavity, mold cavity, pours die piece.
Described die piece of pouring includes die bed block 2, medium-sized piece 3, mo(u)ld top half block 4, and described die bed block 2 is arranged at mold cavity most
Bottom, mo(u)ld top half block 4 is arranged at mold cavity top, and some pieces medium-sized piece 3 is arranged between die bed block 2 and mo(u)ld top half block 4.Described
It is groove in the middle of die bed block 2, surrounding is correspondingly arranged on cast structure, and medium-sized piece 3 middle part is through hole, and surrounding is provided with some castings
It is provided with structure, each cast structure in the middle of a through hole, mo(u)ld top half block 4 and is provided with through hole, surrounding is correspondingly arranged on casting knot
Structure.
Described die bed block 2, medium-sized piece 3, mo(u)ld top half block 4 be sand mold.Described die bed block 2, medium-sized piece 3, mo(u)ld top half block 4 be every
Several identical casting structures are provided with one.Described cover plate 6 is square plate, is provided at both ends with flanging, edge
It is provided with the mounting hole matched with bolt 5.Described bottom plate 1 is square plate, and edge is provided with the installation matched with bolt 5
Hole.
The described center of top of cover plate 6 is provided with sprue cup 7, during sprue cup 7 is up big and down small truncated conical shape, middle part
It is empty.There is screw thread outside the sprue cup 7 in center, the open interior of cover plate 6 has screw thread, and two screw threads match, and sprue cup 7 passes through screw thread
It is quick and easy for installation on cover plate 6.
Embodiment 2
Embodiment 2 is substantially the same manner as Example 1, and difference is, the die bed block of formation, medium-sized piece, mo(u)ld top half block serial type
Casting model, there is vertical pouring gate centre, and can designing the sprue channel open of vertical pouring gate, diameter gradually increases from top to bottom, due to more
Downwards, the inside and outside differential pressure that topping is received is bigger, and larger diameter can cause pressure to reduce, and inside and outside differential pressure up and down ensures flat
Weighing apparatus, casting increase is smooth during topping is downward, and more preferably, speed is faster, it is ensured that Product Precision and casting efficiency for efficiency.Such bottom
The groove of type block is more than mo(u)ld top half block through hole, and medium-sized piece of through hole from top to bottom gradually increases；When product casts completion, also may be used
To ensure that bottom connection is more abundant, it is difficult to be caused by connector branch when casting product is taken out in bottom and is unable to hold out, occur disconnected
Rhegma bad product.
Embodiment 3
Embodiment 3 is essentially identical with embodiment 1 or 2, and difference is, described die bed block, medium-sized piece, mo(u)ld top half root tuber
According to demand, away from middle position, the i.e. cast structure closer to marginal position, size is gradually increased in required size, according to
The casting feature of different cast members, chooses different increasing coefficients, 0.05%-0.3% of the increase coefficient in original size basis
Between, the thickness of sand is covered when can also be to casting gradually to be reduced, 0.05%-0.3% of the reduction coefficient in original size basis
Between.Because away from middle position, the casting material inflow flowed into is slower, and the pressure being subject to reduces, progressively amplification pair
Size is answered, the uniformity of its end face level has been effectively ensured.Acceptance rate rises, and excellent ratio can rise more than 20%.
Embodiment 4
A kind of vertical pattern grouping mould pattern grouping method of steel-casting, comprises the following steps：
First, a type more than one piece die bed block 2, medium-sized piece 3, mo(u)ld top half block 4 are made；
2nd, bottom plate 1 is placed；
3rd, die bed block 2 is placed on bottom plate 1；
4th, longitudinal stack places multilayer medium-sized piece 3 successively；
5th, mo(u)ld top half block 4 is placed in medium-sized piece 3 top；
6th, cover plate 6 is placed in the top of mo(u)ld top half block 4；
7th, fastened with bolt 5；
8th, sprue cup 7 is placed in the top of cover plate 6；
9th, pour into a mould.
When above-mentioned installation, described die bed block 2, medium-sized piece 3, mo(u)ld top half block 4 when installing using concavo-convex positioning.
This invention takes the method for cored-up mould pattern grouping upright casting, inclusion quantity is poured according to existing, every group of casting mold is rationally determined
Casting quantity, every bag pouring molten steel number of times is rationally set, it is ensured that pouring temperature meets pouring procedure requirement, obtains casting quality
To effective guarantee, and eliminate a large amount of sandboxes of making, the expense of frock.Due to shortening the production cycle, production effect is improved
Rate, reduces labor intensity, every sand mold weight is no more than 12 kilograms, while also reducing production cost.
In summary, small casting steel is processed using this programme, more than one piece small casting steel, process can be gone out with once-cast
Less, the cycle is short, productivity ratio is high, cost is low, product quality is stable, product qualification rate is high.
Described above is only the preferred embodiments of the present invention, and the type more than one piece is according to casting dimension and casting technique
It is determined that per type quantity.The die bed block, medium-sized piece, mo(u)ld top half block be high-precision sand mold.In summary, it is small-sized using present invention processing
Steel-casting, once-cast goes out more than one piece small casting steel, and process is few, the cycle is short, productivity ratio is high, cost is low, product quality is stable, production
Product qualification rate is high.It should be pointed out that to those of ordinary skill in the art, not departing from the premise of the technology of the present invention principle
Under, some improvement and deformation can be also made, those modifications and variations should also be regarded as the protection scope of the present invention.
Schematically the invention and embodiments thereof are described above, the description does not have restricted, not
In the case of the spirit or essential characteristics of the present invention, the present invention can be realized in other specific forms.Institute in accompanying drawing
What is shown is also one of embodiment of the invention, and actual structure is not limited thereto, any attached in claim
Icon note should not limit involved claim.So, if one of ordinary skill in the art is enlightened by it, do not departing from
In the case of this creation objective, the frame mode similar to the technical scheme and embodiment are designed without creative, all should
Belong to the protection domain of this patent.In addition, the word of " comprising " one is not excluded for other elements or step, the word of " one " one before element
It is not excluded for including " multiple " element.The multiple element stated in claim to a product can also by an element by software or
Person hardware is realized.The first, the second grade word is used for representing title, and is not offered as any specific order.
Claims (10)
1. a kind of vertical pattern grouping mould of steel-casting, it is characterised in that：Including bottom plate (1), cover plate (6), bottom plate (1) and cover plate (6)
It is fixed by bolt (5), constitutes and be provided with mold cavity, mold cavity, pour die piece.
2. a kind of vertical pattern grouping mould of steel-casting according to claim 1, it is characterised in that：Described die piece of pouring includes
Die bed block (2), medium-sized piece (3), mo(u)ld top half block (4), described die bed block (2) are arranged at the mold cavity bottom, and mo(u)ld top half block (4) is set
In mold cavity top, some pieces medium-sized piece (3) are arranged between die bed block (2) and mo(u)ld top half block (4).
3. a kind of vertical pattern grouping mould of steel-casting according to claim 2, it is characterised in that：In described die bed block (2)
Between be groove, surrounding is correspondingly arranged on cast structure, is through hole in the middle part of medium-sized piece (3), and surrounding is provided with some cast structures, often
It is provided with one cast structure in the middle of a through hole, mo(u)ld top half block (4) and is provided with through hole, surrounding is correspondingly arranged on cast structure.
4. the vertical pattern grouping mould of a kind of steel-casting according to Claims 2 or 3, it is characterised in that：Described die bed block
(2), medium-sized piece (3), mo(u)ld top half block (4) are sand mold.
5. a kind of vertical pattern grouping mould of steel-casting according to claim 4, it is characterised in that：Described die bed block (2), in
Type block (3), mo(u)ld top half block (4) are to be provided with several identical casting structures on each.
6. a kind of vertical pattern grouping mould of steel-casting according to claim 1, it is characterised in that：Described cover plate (6) is side
Shape steel plate, is provided at both ends with flanging, and edge is provided with the mounting hole matched with bolt (5).
7. a kind of vertical pattern grouping mould of steel-casting according to claim 1, it is characterised in that：Described bottom plate (1) is side
Shape steel plate, edge is provided with the mounting hole matched with bolt (5).
8. the vertical pattern grouping mould of a kind of steel-casting according to claim 1 or 2 or 6 or 7, it is characterised in that：Described lid
Plate (6) center of top is provided with sprue cup (7), and sprue cup (7) is up big and down small truncated conical shape, and middle part is hollow.
9. a kind of vertical pattern grouping mould pattern grouping method of steel-casting, comprises the following steps：
First, a type more than one piece die bed block (2), medium-sized piece (3), mo(u)ld top half block (4) are made；
2nd, bottom plate (1) is placed；
3rd, die bed block (2) is placed on bottom plate (1)；
4th, longitudinal stack places medium-sized piece of multilayer (3) successively；
5th, mo(u)ld top half block (4) is placed at the top of medium-sized piece (3)；
6th, cover plate (6) is placed at the top of mo(u)ld top half block (4)；
7th, fastened with bolt (5)；
8th, sprue cup (7) is placed in cover plate (6) top；
9th, pour into a mould.
10. a kind of vertical pattern grouping mould pattern grouping method of steel-casting according to claim 9, it is characterised in that：Described bottom
Using concavo-convex positioning when type block (2), medium-sized piece (3), mo(u)ld top half block (4) are installed.
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| CN108326235A (en) * | 2018-03-13 | 2018-07-27 | 福建省福安市力德泵业有限公司 | A kind of multilayer casting mold |
| CN109128030A (en) * | 2018-10-30 | 2019-01-04 | 禹州市昆仑模具有限公司 | A kind of four hole nut precoated sand molds |
| CN110328335A (en) * | 2019-08-27 | 2019-10-15 | 盛瑞传动股份有限公司 | A kind of mold of shell mold shell core cast flywheel |
| CN110814296A (en) * | 2019-11-18 | 2020-02-21 | 安徽省宁国市宁沪钢球有限公司 | A quick cooling type mould for casting ball |
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| CN107377889A (en) * | 2017-09-01 | 2017-11-24 | 张宇锋 | A kind of vehicular shock absorber rack forming mould |
| CN108326235A (en) * | 2018-03-13 | 2018-07-27 | 福建省福安市力德泵业有限公司 | A kind of multilayer casting mold |
| CN109128030A (en) * | 2018-10-30 | 2019-01-04 | 禹州市昆仑模具有限公司 | A kind of four hole nut precoated sand molds |
| CN110328335A (en) * | 2019-08-27 | 2019-10-15 | 盛瑞传动股份有限公司 | A kind of mold of shell mold shell core cast flywheel |
| CN110814296A (en) * | 2019-11-18 | 2020-02-21 | 安徽省宁国市宁沪钢球有限公司 | A quick cooling type mould for casting ball |
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Application publication date: 20170721 |