CN1909997A - Wire net filter for casting machine - Google Patents
Wire net filter for casting machine Download PDFInfo
- Publication number
- CN1909997A CN1909997A CNA2005800026829A CN200580002682A CN1909997A CN 1909997 A CN1909997 A CN 1909997A CN A2005800026829 A CNA2005800026829 A CN A2005800026829A CN 200580002682 A CN200580002682 A CN 200580002682A CN 1909997 A CN1909997 A CN 1909997A
- Authority
- CN
- China
- Prior art keywords
- filter
- casting
- casting gate
- gate
- deposite metal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D43/00—Mechanical cleaning, e.g. skimming of molten metals
- B22D43/001—Retaining slag during pouring molten metal
- B22D43/004—Retaining slag during pouring molten metal by using filtering means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/08—Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/08—Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
- B22C9/086—Filters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D18/00—Pressure casting; Vacuum casting
- B22D18/04—Low pressure casting, i.e. making use of pressures up to a few bars to fill the mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D43/00—Mechanical cleaning, e.g. skimming of molten metals
Abstract
A wire net filter for a casting machine, comprising a filter body (35) formed in a flanged cap shape in which a flange part (38) is formed around the periphery of a cap body part (37), a downwardly extending part (36) extending downward from the outer peripheral part of the filter body (35), and a ring-shaped recessed part (39) formed between the outer peripheral edge of the flange part (38) and the cap body part (37).
Description
Technical field
The present invention relates to be installed in the wire gauze filter of the casting gate of the casting machine that is used for low pressure casting.
Background technology
Traditionally, the engine cylinder cap that is used for motorcycle has for example adopted low-pressure casting process to cast.For the casting machine of low pressure casting, a kind of system is for example disclosed in Japanese patent laid-open 11-57979.Disclosed casting machine is constructed such that crucible is arranged under the mould that is formed by counterdie and patrix in the patent documentation 1, be stored in deposite metal in the crucible pressurized and by on push away and pass stalk and cup, to be provided to the casting gate of counterdie.
As shown in Figure 5, the casting machine of this type has the wire gauze filter that is installed in the casting gate, flows in the mould with the deposite metal with the oxide that prevents to produce in crucible and the stalk and the impurity in the deposite metal.
Fig. 5 is a cutaway view, and the casting gate part of the amplification of the casting machine that conventional filter wherein has been installed is shown.In Fig. 5, reference number 1 expression counterdie, reference number 2 is counterdie supporting members, and reference number 3 is cups, and reference number 4 is filters, and reference number 5 is the deposite metals that have been set in the mould.
Counterdie 1 forms and makes its die cavity 6 upward openings, and is fixed on the substrate (not shown) by counterdie supporting member 2.Die cavity 6 is defined by counterdie and patrix (not shown), and forms running channel 7 at its lower end.Running channel 7 is formed on that to make in the counterdie 1 that it becomes from Fig. 5 with the product section shown in the double dot dash line 8 recessed downwards.Casting gate 9 is located opening to running channel 7 in the bottom of running channel 7.
In this traditional casting machine, the deposite metal is supplied in the die cavity 6 by filter 4.When die cavity 6 is filled with the deposite metal, and the deposite metal stops to be pressurizeed in the deposite metal in crucible when solidifying near casting gate 9 places.The pressurization stop to cause the deposite metal do not solidify the part flow to crucible downwards, and (deposite metal 5) solidify the part stay in the mould.In traditional casting machine, be set at pressing time and make filter 4 remain on (see figure 5) in the part of solidifying with the relation that embeds with cast article.Therefore, when after casting technique when counterdie 4 upwards separates cast article, filter 4 takes out from casting gate 9 with cast article.
Summary of the invention
The problem to be solved in the present invention
In aforesaid this traditional casting machine, filter 4 is installed to casting gate 9 by the workman, therefore and the power that is applied to filter 4 when filter 4 is force-fitted in the casting gate 9 is different for each workman, exists to make filter 4 be installed in possibility in the improper position.For example, when installing, the power that filter is fixed in the casting gate 9 become less near running channel 7 (leaning on last among the figure) relatively when filter 4.In this case, exist filter 4 to be melted the possibility that metal is pushed in casting process, filter 4 slides towards running channel 7 from casting gate 9 thus, and enters the zone of product section 8.If filter 4 enters the zone of product section 8, then cast article can defectiveness.
On the other hand, when filter 4 relatively near the position of cup 3 (among the figure by down) installation the time, existence can not make filter 4 remain on the possibility in the part 5 of solidifying of deposite metal.In this case, after the mold separation cast article, filter 4 is retained in the casting gate 9.Therefore, before casting next time, must make casting machine shut down take out filter 4, thus overslaugh the continued operation of casting machine.In traditional casting machine, for fear of such problem, be not retained in the casting gate 9, the bottom that arrives casting gate 9 of solidifying of deposite metal pressurization up to the deposite metal in order to make filter 4.Therefore, use traditional wire gauze filter that is used for casting machine to produce the problem that a required time (cycle time) of casting operation is extended.
In order to solve foregoing problems, the purpose of this invention is to provide a kind of wire gauze filter that is used for casting machine, it can prevent filter because the pressure of deposite metal and from the casting gate landing, even and the pressing time of deposite metal shorter, also allow filter to remain in the cast article.
The means of dealing with problems
In order to realize aforementioned purpose, the present invention relates to a kind of wire gauze filter, it is suitable for from the cooperation of running channel one side and is installed in the casting machine that is used for low pressure casting, it comprises: filter body, form the shape of eaves cap, the whole circumference that wherein centers on the bottom of the cap body portion that raises up is formed with the brim of a hat part; To lower extension, its outer peripheral portion from filter body extends downwards; With annular recessed portion, it is formed between the periphery and described cap body portion of described the brim of a hat part.
The invention effect
According to the present invention because have the filter body of sweep play a part can be in fact at the spring of strain in the radial direction, so can when filter body is pressed in the casting gate, increase with the elastic force of the filter body of the inwall press contacts of casting gate.
Therefore therefore, because filter can be firmly held in the casting gate, can prevent reliably at the casting process middle filtrator because the pressure of deposite metal and, thereby boost productivity from the casting gate landing.
In addition, because the brim of a hat of cap body portion from be engaged in casting gate of filter body partly projects upwards, even so when the filter body was arranged in the relatively low part place of casting gate, the cap body portion can be suitable for extending to solidifying in the part of deposite metal at upper end.Therefore, because the part of filter (cap) is in solidifying part and need not to wait and be solidified to the lower area of casting gate to the deposite metal, so can shorten the time (cycle time) that casting operation is required.In addition, filter can take out from mould reliably with cast article, thereby prevents from only to make in order to take out filter from mould the operation of casting machine shutdown.Therefore, in conjunction with the cycle of above-mentioned shortening, further improved productivity ratio.
According to a second aspect of the invention, the brim of a hat part that can utilize filter body is positioned at running channel one side opening edge in the casting gate with filter body as a reference.Therefore, according to the present invention, filter body can be positioned at constant position always, makes the cap body portion of filter body extend in the running channel, and no matter filter workman's change is installed.Therefore, because when solidify the deposite metal, can stop the pressurization of deposite metal in running channel, so compare the time of the deposite metal that can stop in advance pressurizeing with the time of the deposite metal that after solidifying of deposite metal arrives casting gate, stops to pressurize.As a result, can further shorten the cycle to boost productivity.
According to a third aspect of the invention we, the resistance of the generation when wire gauze filter is passed in the deposite metal is minimized, and can remove impurity in the deposite metal reliably with wire gauze filter.
Description of drawings
Fig. 1 is the cutaway view that has the casting machine that is used for low pressure casting of filter according to the present invention;
Fig. 2 is the vertical view of counterdie;
Fig. 3 is the cutaway view that amplifies, and major part is shown;
Fig. 4 is the stereogram of filter;
Fig. 5 is the cutaway view that amplifies, and the casting gate part of the casting machine with conventional filter mounted thereto is shown.
The specific embodiment
Now, embodiments of the present invention will be described by referring to the drawings.
In Fig. 1 to 4, by reference number 11 expressions are casting machines that are used for low pressure casting of this embodiment.Casting machine 11 is engine cylinder cap (not shown) a kind of that are used for motorcycle by low pressure casting casting, and as known, mould 13 is arranged on the smelting furnace 12.
Smelting furnace 12 by the body 14 of the case shape that forms upward opening, be used for the upper opening part of enclosed body 14 capping 15, be used to store deposite metal 16 crucible 17, be installed to stalk 18 that capping 15 and its lower end be immersed in deposite metal 16 or the like and form.The body 14 of smelting furnace 12 comprises the heater (not shown) of the deposite metal 16 that is used for heating crucible 17 under given temperature, and body 14 is connected to the pressue device (not shown).Pressue device have in casting process supplying inert gas to the body 14 with upper surface pressurization to deposite metal 16, and with the function that pushes on the deposite metal 16 in the stalk 18, and the tracheae (not shown) is connected to the connectivity port 14a that is formed in the body 14.
As in traditional casting machine, come to be pressurizeed in the inside of the body 14 of smelting furnace 12 by pressue device, under the clamped state of mould 13, cast by casting machine 11.In casting process, deposite metal 16 is upwards supplied with from crucible 17 by stalk 18, and is fed to the mould 13 that is arranged on them.
Counterdie 22 is formed with the die cavity 28 of upward opening, and is fixed on the substrate 26 by supporting member 29.Each all is provided with counterdie 22 and patrix 21 and is used for preheated mold and makes mold temperature keep constant water-cooling type cooling device (not shown) to the heater (not shown) of casting temperature with at casting process.
As shown in Figures 2 and 3, in the bottom of the die cavity 28 of counterdie 22, form the running channel 30 that extends to opposite side from a side of die cavity 28, and casting gate 31 forms from the bottom of running channel 30 and extends downwards.
Look above from Fig. 2, the casting gate 31 that is formed in the bottom of counterdie 22 has elliptical shape.The diameter of casting gate 31 increases towards the upper end gradually to form gradient as shown in Figure 3.Filter 32 (aftermentioned) is installed in the upper end in the opening of casting gate 31.The upper end that is arranged on the cup 33 in the counterdie supporting member 29 is connected to the lower end of casting gate 31.As shown in Figure 1, cup 33 penetrates supporting member 29 in the vertical.Deposite metal 16 is supplied to cup 33 from the upper end against the stalk 18 of supporting member 29 lower surfaces.In other words, in casting process, deposite metal 16 flows into the casting gate 31 from stalk 18 by cup 33, flows into the running channel 30 from casting gate 31 by filter 32 then, is provided to die cavity 24,28 then.
Solidify at the 16 product section 34 (see figure 3) places of beginning in die cavity 24,28, deposite metal that have been full of die cavity 24,28.Solidifying of deposite metal 16 along with the time proceeds to casting gate 31 in running channel 30.When solidifying when proceeding near the border between running channel 30 and the casting gate 31 regional, the casting machine 11 of this embodiment stops the pressurization to be undertaken by pressue device, causes that the part of not solidifying of deposite metal 16 flow to crucible 17 downwards.In this embodiment, the time that stops to pressurize is based on that the temperature of the deposite metal 16 on the close border of detecting by the temperature sensor (not shown) that is installed on the counterdie 22 determines.
As shown in Figure 3 and Figure 4, filter 32 comprise filter body 35 with eaves cap shaped, from the periphery of filter body 35 extend downwards to lower extension 36 and annular recessed portion 39 (aftermentioned).The filter 32 of this embodiment is made by the galvanized metal silk screen, and this woven wire is formed from steel, and is shaped by the pressure former (not shown).Although described the shape that a large amount of boost lines helps understand filter 32 in Fig. 4, the mesh of filter 32 is formed by the woven wire with the direction braiding different with these boost lines.Experiment shows, filter 32 used the woven wire of the mesh with 4 to 12 inches to make to pass the resistance that filter 32 produced when the deposite metal minimize, and guarantees to remove impurity in the deposite metal.Particularly, it demonstrates and uses the woven wire of 8 inches meshes to guarantee to remove most effectively impurity to filter 32.
The brim of a hat part 38 that filter body 35 has the cap body portion 37 cylindraceous that forms at the bottom of the band that raises up and forms continuously around the whole circumference of cap body portion 37 bottoms, and have the shape of eaves cap on the whole.
The brim of a hat part 38 has the periphery 38a that is connected to lower extension 36.Above-mentioned annular recessed portion 39 is formed between periphery 38a and the cap body portion 37.Annular recessed portion 39 upward openings.
In this embodiment, the periphery 38a of the brim of a hat part 38 is being bent downwardly gradually towards the outer end in the radial direction, and is connected to the upper end to lower extension 36 smoothly.As mentioned above, because the brim of a hat part 38 is crooked at periphery 38a place, and the location upcountry radially of annular recessed portion 39 periphery 38a, so the brim of a hat part 38 is by being positioned at the annular recessed portion 39 on the inner circumferential side and being positioned at annular portions 40 on the outer circumferential sides form alphabetical S on section shape.The brim of a hat part 38 has the bigger external diameter of internal diameter than the running channel side opening edge of casting gate 31.
Be and four corresponding parts in angle that form the woven wire before the filter 32 by pressure forming that extend downwards separately position in four positions of each angle from the outer peripheral portion of filter body 35 to lower extension 36.As shown in Figure 3, form along the conical surface of casting gate 31 to lower extension 36.
As shown in Figure 3, the filter 32 with above-mentioned structure is installed in the casting gate 31 by being press fit in the casting gate 31, makes that the periphery 38a of the brim of a hat part 38 is roughly mutually neat with the running channel side opening edge (downstream) of casting gate 31.It is to be undertaken by the workman at each casting operation place that filter 32 is press fit in the casting gate 31.Compounding practice is by being inserted into the casting gate 31 to die cavity 28 sides of lower extension from counterdie 22 filter 32, and push downwards that filter body 35 (being pressed in the casting gate 31) carries out, wherein periphery 38a contacts with the madial wall of casting gate 31 on its whole circumference.As the result who as mentioned above filter body 35 is pushed, form the annular recessed portion 39 of the brim of a hat part 38 and the cardinal extremity strain of annular portions 40 and cap body portion 37, and filter 35 is by radial compression downwards.In other words, the filter body 35 with sweep take on can be in fact at the spring of strain in the radial direction.
Therefore, because when filter body 35 is force-fitted in the casting gate 31, filter body 35 is pressed against the madial wall of casting gate 31 by the elasticity of himself, so filter 32 can be firmly held in the casting gate 31.Do not compare with the conventional filter of annular portions 40 with there being annular recessed portion 39, elastic force is obviously bigger.
In casting process, upwards press the deposite metal 16 that the filter 32 of this embodiment is flow through it.But, because filter 32 is pressed against the madial wall of casting gate 31 by the elastic force bigger than the elastic force of conventional filter, even assemble so oxide in the deposite metal 16 and impurity are filtered device 32, increased the pressure that is applied on the filter 32 thus, can prevent that also filter is from casting gate 31 landings and enter product section 34.
In addition, because the brim of a hat part 38 of the cap body portion 37 of filter body 35 from be assemblied in casting gate 31 projects upwards, so even filter 35 is pressed down against the bottom of casting gate 31, the upper end of cap body portion 37 is suitable for solidifying in the part in deposite metal 16.Therefore, because cap body portion 37 is in solidifying part and need not to wait to the deposite metal 16 to solidify in the bottom of casting gate 31 and just stop to pressurize, so can shorten the time (cycle time) that casting operation is required.Therefore,, in casting machine 11, compare, can shift to an earlier date tens seconds and stop pressurization with traditional casting machine according to this embodiment although the pressurization of deposite metal 16 must continue to expand among Fig. 3 by the position shown in the double dot dash line A up to solidifying.
In addition, because cap body 37 projects upwards, and be suitable for the solidifying in the part of deposite metal 16, so can take out filters 32 from mould 13 with cast article.In other words because needn't be only in order to take out filters 13 from mould 13 and casting machine 11 to be shut down, so combine, can further boost productivity with the shortening in above-mentioned cycle.
The filter body 35 of the filter 32 of this embodiment is press fit in the casting gate 31, makes that the periphery 38a of the brim of a hat part 38 is roughly mutually neat with the running channel side opening edge of casting gate 31.In other words, when filter 32 was installed in the casting gate 31, filter body 35 can utilize the brim of a hat part 38 as a reference, located together mutually with the running channel side opening edge at sprue gate 31.
Therefore, in filter 32,,, make the cap body portion 37 of filter body 35 extend in the running channel 30 always filter body 35 can be positioned at constant position no matter the workman's of filter 32 change is installed.
Therefore because stop can in running channel 30, to solidify in deposite metal 16 time to deposite metal 16 pressurizations, so with stop deposite metal 16 pressurizations are compared after arriving casting gate 31 in solidifying, can stop in advance being pressurizeed in deposite metal 16.As a result, can shorten the cycle, thereby further enhance productivity.
The wire gauze filter that is used for casting machine according to the present invention can be applied to the filter that is used to make such as the air injection machine of the cylinder head of vehicle motor, marine engine or other general purpose engine.
Claims (3)
1. wire gauze filter, be suitable for cooperating and being installed in the casting gate of the casting machine that is used for low pressure casting from the running channel side, it comprises: filter body, form the shape of eaves cap, and wherein the whole circumference around the bottom of the cap body portion that raises up is formed with the brim of a hat part; To lower extension, its outer peripheral portion from described filter body extends downwards; With annular recessed portion, it is formed between the periphery and described cap body portion of described the brim of a hat part.
2. the wire gauze filter that is used for casting machine according to claim 1, wherein said filter is force-fitted in the described casting gate, makes that the described the brim of a hat periphery partly of described filter body is roughly mutually neat with the running channel side opening edge of described casting gate.
3. the wire gauze filter that is used for casting machine according to claim 1, wherein said filter is formed by the woven wire of 4 to 12 inches meshes.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP012869/2004 | 2004-01-21 | ||
| JP2004012869A JP4685358B2 (en) | 2004-01-21 | 2004-01-21 | Wire mesh filter for casting machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1909997A true CN1909997A (en) | 2007-02-07 |
| CN100349675C CN100349675C (en) | 2007-11-21 |
Family
ID=34805359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005800026829A Active CN100349675C (en) | 2004-01-21 | 2005-01-20 | Wire net filter for casting machine |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JP4685358B2 (en) |
| KR (1) | KR101171172B1 (en) |
| CN (1) | CN100349675C (en) |
| BR (1) | BRPI0506985B1 (en) |
| TW (1) | TW200533439A (en) |
| WO (1) | WO2005070590A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103143681A (en) * | 2013-03-13 | 2013-06-12 | 邵宏 | Screen sticking machine for glass fiber filter screen for casting |
| CN104439085A (en) * | 2014-11-25 | 2015-03-25 | 柳州金特机械有限公司 | Casting sprue cup |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101890491A (en) * | 2010-08-04 | 2010-11-24 | 六和轻合金（昆山）有限公司 | Method for filtering and deslagging aluminum liquid in low pressure casting process |
| CN104160027B (en) | 2012-02-01 | 2016-06-22 | 浦项工科大学校产学协力团 | Express the carrier of ten dimer TRAIL and HSV-TK suicide gene simultaneously and utilize its anticancer stem-cell therapy agent |
| KR101969474B1 (en) * | 2017-10-18 | 2019-04-16 | 명화공업주식회사 | Filter for die casting |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2032106U (en) * | 1987-11-20 | 1989-02-08 | 薛友松 | Triple mill ball casting apparatus |
| JPH01114150U (en) * | 1988-01-25 | 1989-08-01 | ||
| CN2104718U (en) * | 1991-10-19 | 1992-05-20 | 南昌航空工业学院 | Cap-like filtering apparatus casted by using molten mould |
| JPH09300044A (en) * | 1996-05-16 | 1997-11-25 | Akira Kashiwazaki | Filter for casting |
| JP3811772B2 (en) * | 1998-01-26 | 2006-08-23 | 太陽金網株式会社 | Wire mesh screen for aluminum casting |
| CN2347700Y (en) * | 1998-08-20 | 1999-11-10 | 陶新如 | Casting moulding box |
| CA2372414A1 (en) * | 1999-05-18 | 2000-11-23 | Foseco International Limited | Filter assembly |
-
2004
- 2004-01-21 JP JP2004012869A patent/JP4685358B2/en not_active Expired - Lifetime
-
2005
- 2005-01-12 TW TW094100898A patent/TW200533439A/en unknown
- 2005-01-20 KR KR1020067014614A patent/KR101171172B1/en active IP Right Grant
- 2005-01-20 BR BRPI0506985A patent/BRPI0506985B1/en active IP Right Grant
- 2005-01-20 CN CNB2005800026829A patent/CN100349675C/en active Active
- 2005-01-20 WO PCT/JP2005/000683 patent/WO2005070590A1/en active Application Filing
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103143681A (en) * | 2013-03-13 | 2013-06-12 | 邵宏 | Screen sticking machine for glass fiber filter screen for casting |
| CN104439085A (en) * | 2014-11-25 | 2015-03-25 | 柳州金特机械有限公司 | Casting sprue cup |
Also Published As
| Publication number | Publication date |
|---|---|
| TW200533439A (en) | 2005-10-16 |
| WO2005070590A1 (en) | 2005-08-04 |
| CN100349675C (en) | 2007-11-21 |
| JP4685358B2 (en) | 2011-05-18 |
| BRPI0506985A (en) | 2007-06-26 |
| JP2005205434A (en) | 2005-08-04 |
| KR20070001099A (en) | 2007-01-03 |
| KR101171172B1 (en) | 2012-08-06 |
| BRPI0506985B1 (en) | 2016-03-22 |
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