CN1043131C - Method for casting many products - Google Patents
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- CN1043131C CN1043131C CN94111864A CN94111864A CN1043131C CN 1043131 C CN1043131 C CN 1043131C CN 94111864 A CN94111864 A CN 94111864A CN 94111864 A CN94111864 A CN 94111864A CN 1043131 C CN1043131 C CN 1043131C
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Abstract
The present invention relates to a metal casting molding method, particularly to a forming method of a pouring system in which a plurality of products can be cast by casting in one step. The present invention comprises the steps: molding for manufacturing the mold cavities 8, 11 and 12 of a plurality of castings and the pouring system 2 thereof, pouring molten metal, and cleaning the castings. The mold cavities are vertically connected in series and are communicated, the pouring system is communicated with a mold cavity of an end part, the concatenation of adjacent upper mold cavity 8 and lower mold cavity 11 uses an edge gate 9 or a support pouring channel structure, and the edge gate 9 is directly connected with the edge parts of the mold cavity; vertical or horizontal stacking box molding can be used. The mold cavities of a plurality of castings are connected in series to form mold cavity strings which are also used as pouring channels, and technological yield can reach up to more than 70%, quality is excellent, resources are saved, and thousands of products can be cast once.
Description
The present invention relates to the casting mold of metal casting goods, particularly once-cast and can cast the casting mold of a plurality of goods.
The existing casting mold of casting a plurality of goods for one case normally is used for the casting of undersized identical shaped goods, and casting mold is made of the die cavity of a plurality of foundry goods of casting and running gate system thereof etc.Mainly by sprue, cross gate or branch cross gate, the ingate of band cup, ingate is communicated with formation to above-mentioned running gate system with die cavity.The connection of above-mentioned running channel, particularly ingate are connected with cross gate or branch cross gate, all adopt parallel-connection structure, and promptly die cavity is parallel-connection structure with being connected of running gate system.This running gate system is established one's own system, and the size of its running gate system is with the change in size of foundry goods.But running gate system can not unconfinedly be dwindled.When casting small size foundry goods, since must adopt a whole set of running gate system of establishing one's own system, the percentage of the weight (gross weight of foundry goods and running gate system) of the motlten metal that its casting weight and cast are used, and established technology product rate is low, some the time, approximately only can reach 20%.Also have the vertical multiple mould of employing that the sprue of each case casting mold is interconnected, but only can save the portion gate cup, product yield is also lower.USPO is at US4, announced a kind of " casting methods of a plurality of goods " in 733,712, adopt horizontal multiple mould, running gate system has the sprue of the approximate arch in a cross section, and overlap joint is communicated with the die cavity of a plurality of casting molds, be still a kind of parallel-connection structure, only save limited part running channel, its product yield is still not high, estimation is below 40%, in addition, the casting mold mosaic block that this method need resin sand system, its technology is more numerous and diverse, productivity ratio is lower, and production cost is also higher.
Given this, purpose of the present invention just is to provide a kind of simplification running gate system, improves the casting mold of many small sized article of casting of product yield and production efficiency.
The casting mold of many goods of casting of the present invention (referring to accompanying drawing 1,2), comprise the die cavity 8,11,12,21,24,26,30,31,32,34,36 and the running gate system 2,18 thereof of casting a plurality of foundry goods, above-mentioned die cavity vertically is connected in series connection, and the direct-connected formation kiss gate 9,10,23,25,33,35 in the edge of adjacent last lower impressions, above-mentioned running gate system is communicated with the die cavity of end.
Above-mentioned casting mold can become a plurality of vertically stacked casting mold sheets 3,4,5 by the die cavity horizontal parting.
Above-mentioned casting mold also can become the stacked casting mold sheet of a plurality of levels 20,28 by the die cavity vertical parting.
The casting mold of many goods of casting of the present invention (referring to accompanying drawing 5), comprise the die cavity 43,45 and the running gate system 38 thereof of casting a plurality of foundry goods, above-mentioned die cavity vertically is connected in series connection, and between the adjacent last lower impressions top casting road 44,46 is arranged, and above-mentioned running gate system is communicated with the die cavity of end.
Above-mentioned casting mold can become a plurality of vertically stacked casting mold sheets 40,42 by the die cavity horizontal parting.
Above-mentioned casting mold also can become the stacked casting mold sheet of a plurality of levels by the die cavity vertical parting.
The present invention is vertical serial connection connection with the die cavity of a plurality of casting molds, and series connection constitutes the die cavity string, and the die cavity on die cavity string top is communicated with running gate system.During cast, motlten metal enters the die cavity of top (or bottom) from running gate system, and (or from bottom to up) enters each die cavity of series connection and finish cast more successively from top to bottom.All (or lower end) has the last cast gate (submarine gate) that allows motlten metal flow into (or outflow) to each die cavity in the upper end, except that the die cavity on bottom (or top) did not have the submarine gate (or going up cast gate), all (or upper end) had and allows motlten metal flow out the submarine gate (going up cast gate) of (or inflow) in the lower end.When staying with a die cavity string structure, once-cast can obtain a plurality of even tens foundry goods.And employing the inventive method, a cover running gate system can be poured into a mould hundreds of die cavity strings simultaneously.
The kiss gate of above-mentioned adjacent last lower impressions is that the submarine gate of top die cavity integrates with the last cast gate of below die cavity actually, does not have running channel therebetween, also just need not to expend to pour into a mould and uses motlten metal.
The present invention has following remarkable advantage and good effect.
One, casting mold of the present invention, die cavity is unified into the die cavity rate, with foundry goods die cavity and the running channel double as running channel that unites two into one, so running gate system that can only need link to each other with the die cavity on top, running gate system need not link to each other with the die cavity of each casting mold, thereby simplified running gate system to greatest extent, and shortened the length of running gate system to greatest extent, the consumption of the required molten metal of running gate system when saving cast to greatest extent, the product yield of foundry goods can reach more than 70%, and the product yield of existing usual method is only for adding 20%, U.S. Pat 4,733,712 also only below 40%.
Two, casting mold of the present invention is with cover pourable hundreds of the die cavity strings of running gate system and die cavity string dozens of foundry goods die cavity of can connecting, promptly once pourable thousands of small size foundry goods, its productivity ratio height of obtaining.
Three, casting mold of the present invention can reduce the consumption of making the used Modeling Material of casting mold, and the ratio of the metal material that Modeling Material that the manufacturing casting mold is required and cast product are required can be hanged down and be reached 1.18: 1, and this ratio of existing methods is generally 3: 1～5: 1.
Four, casting mold of the present invention, because of the die cavity of casting mold is vertical series connection, the top die cavity of adjacent last lower impressions is equivalent to the rising head of below die cavity, so, adopt casting mold cast product of the present invention, its foundry goods is easy to fill type and feeding, can eliminate or reduce casting flaws such as underpriming, shrinkage cavity, shrinkage porosite, castability excellence.
Five, casting mold of the present invention is practical, and available artificial model or machine molding can be stayed and be used multiple Modeling Material; Employed mould is simple, and the specification requirement of operation is not high, is suitable for producing in enormous quantities using.
Below, with embodiment and comparative examples accompanying drawing, casting mold of the present invention is elaborated again.
Brief description of drawings.
Fig. 1 is a kind of structural representation of casting the casting mold of many goods of the present invention.Show the vertical stacked structure of a plurality of casting mold sheets 3,4,5, die cavity 8,11,12 vertically serial connection is communicated with forming cavity string, kiss gate 9,10, running gate system 2 and casting mold sheet 1 thereof between die cavity.
Fig. 2 is the structural representation of the casting mold of a kind of casting mold of casting many goods of the present invention.Show the horizontal stacked structure of a plurality of casting mold sheets 20,28, die cavity 21,24,26,30,31,32,34,36 is the half of die cavity along the center line vertical-parting, but series connection constitutes the stacked half of die cavity string that is merged into whole die cavity string of level, kiss gate 23,25,33,35, running gate system 18 and casting mold sheet 17 thereof.
Fig. 3 is the structural representation with Fig. 1,2 the prepared foundry goods string of casting mold.
Fig. 4 is the schematic diagram with Fig. 1,2 prepared goods of casting mold.
Fig. 5 is the structural representation of the casting mold of many goods of another kind of casting of the present invention.Show vertically serial connection connection of die cavity 43,45, adjacent going up between lower impressions has top casting road 44,46.
Fig. 6 is the structural representation with the prepared foundry goods string of casting mold of Fig. 5.
Fig. 7 is the schematic diagram with the prepared goods of casting mold of Fig. 5.
Embodiment 1
A kind of casting mold of casting many goods of the present invention, its foundry goods example are 10 millimeters of diameters as shown in Figure 4, long 10 millimeters short cylinder.The modeling process of casting mold is as follows.
Adopt wet type clay-bonded sand, vertically folded case, manual no case or flask molding.Casting mold as shown in Figure 1.
Should prepare casting bed before the moulding, and make the template that a moulding is used, this template has stripping pattern plate, and frame is equipped with 216 apperances that structure is identical.During installation, the end face that should make the end face of all apperances and frame is all on same plane.
Making polylith with template can vertically stacked casting mold sheet.At first produce the first block casting matrix 5, scrape off unnecessary sand, make the end face of all apperances all now be exposed at the surface with template.Casting mold sheet 5, template are together overturn downwards, are placed on the smooth casting bed 13, with stripping pattern plate with 5 moldings of casting mold sheet.This casting mold sheet 5 has two die joints 6,7 up and down, and die cavity 12 connects these two die joints.Owing on the template many identical shaped apperances are arranged, many die cavities as die cavity 12 are also just arranged.Then, use the same method and produce second casting mold sheet 4, and together with the casting mold sheet, template overlays on the casting mold sheet 5 together.When stacking, make all die cavities as die cavity 11, only the marginal portion with die cavity 12 coincides, and forms kiss gate 10 in coincidence place.For the ease of stacking, can adopt positioner, this device is very simple, as long as can make the same side of casting mold sheet keep concordant, can be to be fixed on location guide on the casting bed and the locating piece on the template, and the two is matched.Apperance on the template will be arranged and install like this, if at template center draw mutually perpendicular axis of symmetry X, Y, so, make apperance to the X-axis symmetry, and all apperances of Y-axis are all departed from a definite value distance, in other words, on this direction, the symmetry axis that apperance is arranged does not overlap with Y-axis, but has departed from certain distance, can be several millimeters.Like this, when stacking casting mold sheet 4, as long as it is end for end in X-direction, all die cavities of casting mold sheet 4 are a part of with regard to only overlapping naturally with all die cavities on the casting mold sheet 5, form kiss gate 10 in coincidence place.Folding the back ejects casting mold sheet 4 with stripping pattern plate.As stated above, produce casting mold sheet 3, stack and form kiss gate 9, continue by this method moulding, stack, up to the casting mold sheet that stacks about 30.Like this, formed the die cavity string of a connection by die cavity 8, kiss gate 9, die cavity 11, kiss gate 10, die cavity 12, above-mentioned casting mold has 216 such die cavity strings.
Produce a casting mold sheet 1 that only has running gate system again, overlay the top of the casting mold sheet of above-mentioned weight.This running gate system is communicated with the die cavity on the top of 216 die cavity strings, makes each die cavity string can both pour into molten iron, and this running gate system can be the running gate system of types such as existing flanging, teeming, overlap joint, even the running gate system of " filling type one by one " formula.The casting mold sheet 1 of this running gate system also can come moulding with the template of band stripping pattern plate.
Moulding also can be used the sandbox hand moulding, and the detent mechanism of sandbox need be set on the above-mentioned template, and the cancellation frame.
When using this casting mold, should adopt the measure of running away of preventing, as bury sand, place foundary weight etc., pour into a mould with usual way, after adopting common sand removal to handle, remove running gate system 2, just obtain the 216 strings foundry goods string identical with Fig. 3, it is formed by single foundry goods 14,15,16 mutual flanging.The foundry goods string is struck one by one disconnected from flanging, just obtain thousands of foundry goods goods as shown in Figure 4.
If this casting mold stacks 30 casting mold sheets, can water out 6480 identical foundry goods one the case, product yield reaches 78.9%.
Embodiment 2
A kind of casting mold of casting many goods of the present invention.Present embodiment adopts resin sand, also can use oil-sand, water-glass sand etc., and level is folded case, manual removable-flask moulding.Casting mold as shown in Figure 2.Modeling process is as follows.
Make two identical templates, casting mold template and back casting mold mould are pulled before claiming, their unique difference is, apperance on two transverse slats is arranged in the mirror image symmetry, make respectively the two block casting types of producing into two half of die cavities of mirror image symmetry by these two templates be incorporated into together, can form complete die cavity.Arranged many apperances on the template, these apperances all are the branch die sinkings of splitting the branch mould along cylinder axis.Tens apperances are overlapped to form half of apperance string from beginning to end together mutually, and lap-joint forms kiss gate.Use above-mentioned plate moulding, die cavity is the half of die cavity string that is made of half of die cavity 21,24,26.Present embodiment adopts plane vertical pouring casting mold method, so the top of apperance string do not stay mold thickness, has made die cavity top break-through behind the type, as die cavity 21,36, during cast from here molten iron being poured into the die cavity string.In order to be easy to molding and to make thin casting mold, use stripping pattern plate, because without sandbox, template also has frame.
Make preceding half mould casting mold sheet 20 with preceding casting mold template, demoulding sclerosis.The half of die cavity string that is formed by die cavity 21,24,26 and kiss gate 23,25 is arranged on its die joint 22.Die cavity 36,34,32 and kiss gate 35,33 also form same half of die cavity string.And they have represented many so half of die cavity strings.Before on the half mould casting mold sheet 20 plane relative with die joint 22 be the back side 19.Produce back half mould casting mold sheet 28, demoulding sclerosis with back casting mold template.Equally, it also has the back side 29, and many half of die cavity strings with 20 one-tenth mirror image symmetries of preceding half mould casting mold sheet are arranged on the die joint 27.Preceding half mould casting mold sheet 20 and back half mould casting mold sheet 28 mould assembling are pushed along the chain-dotted line among Fig. 2 to carry out level stacked, just form complete die cavity, as 21 and 30 merge, 36 and 31 merging complete die cavity.These die cavities are many by cylinder die cavity and kiss gate is formed and opening makes progress die cavity string.
Produce a casting mold sheet 17 that only has running gate system 18 with wet type clay-bonded sand, overlay on the casting mold sheet 20,28 after the mould assembling.Running gate system 18 is lap gate injection systems, and it has connected the die cavity on each die cavity string top, promptly as the complete die cavity that is merged into by half of die cavity 21 and 30,36 and 31, thereby makes each die cavity string can both pour into molten iron.
Half mould casting mold sheet 20 and back half mould casting mold sheet 28 before producing many, and mould assembling over the ground one to one, along continuous straight runs is piled up into a string, puts casting mold sheet 17.With clamping device that this casting matrix-holder is steady, prevent that casting mold from falling down and running away.
Present embodiment also can replace forward and backward two templates with a match plate.Carry out above-mentioned moulding.
Also can come moulding with vertical parting flaskless shoot-squeeze moulding machine or similar machinery.
Embodiment 3
A kind of casting mold of casting many goods of the present invention, it is bigger to be used for size, is enough to lay the top casting road, or the inconvenient foundry goods that uses kiss gate to cast.During moulding, can use a top casting road or several top casting road (being equivalent to shower gate) to connect a plurality of identical die cavities, form the die cavity string, cast out the foundry goods string of bunchiness.Example casting diameter 50mm as shown in Figure 7, the cylinder bodily form foundry goods of high 20mm, available diameter 10mm, the circular cross-section top casting road of high 15mm comes " series connection " die cavity.Its casting mold as shown in Figure 5, the foundry goods string is as shown in Figure 6.Concrete modeling process is as follows.
With wet type clay-bonded sand, vertical folded case, manual no case or removable-flask moulding.At first make a template, it has stripping pattern plate, frame.On the template regular arrangement 24 identical apperances, one section top casting road has been installed on each apperance.During installation, should make top casting road end face equally, the frame end face at grade.
Produce a block casting matrix 42 with template, turn-over form is placed on the smooth good casting bed 47, uses the stripping pattern plate molding, and casting mold sheet 42 is placed on the casting bed 47.Produce the second block casting matrix 40, overlay on the casting mold sheet 42.This two block castings matrix is identical, has represented many identical with it casting mold sheets.As can see from Figure 5, the identical die cavity of a plurality of and die cavity 43 is arranged on the casting mold sheet 40, die cavity 43 by top casting road 44 up and down two die joints 39,41 connect.Like this, die cavity 43, top casting road 44, die cavity 45, top casting road 46 have just formed a die cavity string.Continue moulding, stack up to suitable height about 15 block casting matrix.
Produce an only casting mold sheet 37 of Strip casting system 38, and overlay on the stacked casting mold sheet.What running gate system 38 adopted is kiss gate, and it makes each die cavity string can both pour into molten iron.
Use this casting mold, once can water out 240 foundry goods, product yield is 81.1%.
Claims (6)
1, the casting mold of many goods of casting, comprise the die cavity (8,11,12,21,24,26,30,31,32,34,36) and the running gate system (2,18) thereof of casting a plurality of foundry goods, it is characterized in that above-mentioned die cavity vertically is connected in series connection, and the direct-connected formation kiss gate in the edge of adjacent last lower impressions (9,10,23,25,33,35), above-mentioned running gate system is communicated with the die cavity of end.
2, the casting mold of many goods of casting as claimed in claim 1 is characterized in that said casting mold becomes a plurality of vertically stacked casting mold sheets (3,4,5) by the die cavity horizontal parting.
3, the casting mold of many goods of casting as claimed in claim 1 is characterized in that said casting mold becomes the stacked casting mold sheet of a plurality of levels (20,28) by the die cavity vertical parting.
4, the casting mold of many goods of casting, comprise the die cavity (43,45) and the running gate system (38) thereof of casting a plurality of foundry goods, it is characterized in that above-mentioned die cavity vertically is connected in series connection, and top casting road (44,46) is arranged between the adjacent last lower impressions, above-mentioned running gate system is communicated with the die cavity of end.
5, the casting mold of many goods of casting as claimed in claim 4 is characterized in that said casting mold becomes a plurality of vertically stacked casting mold sheets (40,42) by the die cavity horizontal parting.
6, the casting mold of many goods of casting as claimed in claim 4 is characterized in that said casting mold becomes the stacked casting mold sheet of a plurality of levels by the die cavity vertical parting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94111864A CN1043131C (en) | 1994-08-08 | 1994-08-08 | Method for casting many products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94111864A CN1043131C (en) | 1994-08-08 | 1994-08-08 | Method for casting many products |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1116569A CN1116569A (en) | 1996-02-14 |
| CN1043131C true CN1043131C (en) | 1999-04-28 |
Family
ID=5035693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN94111864A Expired - Fee Related CN1043131C (en) | 1994-08-08 | 1994-08-08 | Method for casting many products |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1043131C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100556579C (en) * | 2006-11-09 | 2009-11-04 | 南京蓝捷德科技有限公司 | Combined type casting mold and manufacture method thereof |
| CN104942235A (en) * | 2014-03-24 | 2015-09-30 | 韩金福 | Box stacking and pouring technical method for automobile brake disc |
| CN107225215B (en) * | 2017-06-22 | 2024-04-19 | 南京满周繁星网络科技有限公司 | Method for casting pouring structure of lock bar by utilizing EPC technology |
| CN108188353A (en) * | 2018-02-11 | 2018-06-22 | 福建新佳鑫实业有限公司 | A kind of metallic plate casting method |
| CN110052582A (en) * | 2019-03-15 | 2019-07-26 | 启东市聚旺铸造有限公司 | Casting process of motor tooth pressing plate |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2791811A (en) * | 1953-08-17 | 1957-05-14 | John H Schmid | Shell mold and apparatus for producing it |
| US2940142A (en) * | 1958-03-31 | 1960-06-14 | Wells Mfg Company | Mold assembly |
| EP0062997A2 (en) * | 1981-04-09 | 1982-10-20 | ROLLS-ROYCE plc | Method of producing refractory articles and a method of casting therewith |
-
1994
- 1994-08-08 CN CN94111864A patent/CN1043131C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2791811A (en) * | 1953-08-17 | 1957-05-14 | John H Schmid | Shell mold and apparatus for producing it |
| US2940142A (en) * | 1958-03-31 | 1960-06-14 | Wells Mfg Company | Mold assembly |
| EP0062997A2 (en) * | 1981-04-09 | 1982-10-20 | ROLLS-ROYCE plc | Method of producing refractory articles and a method of casting therewith |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1116569A (en) | 1996-02-14 |
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