CN102626775A - Center feeding die-casting mold - Google Patents
Center feeding die-casting mold Download PDFInfo
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- CN102626775A CN102626775A CN2012100576708A CN201210057670A CN102626775A CN 102626775 A CN102626775 A CN 102626775A CN 2012100576708 A CN2012100576708 A CN 2012100576708A CN 201210057670 A CN201210057670 A CN 201210057670A CN 102626775 A CN102626775 A CN 102626775A
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Abstract
The invention relates to the field of die-casting molds and aims at providing a center feeding die-casting mold enabling a die-casting piece to be close in strength in all directions and not apt to deform or discard. The center feeding die-casting mold comprises a fixed mold, a moving mold, a runner system and a plurality of ejector rods located at the position of the moving mold. The fixed mold and the moving mold are enclosed to form a plurality of annular mold cavities. The runner system comprises a material barrel, cross runners and feeding runners with the same number as the mold cavities. At least two feeding ports evenly distributed in the circumferential directions are arranged outside the feeding runners which are coaxial with the mold cavities, the feeding ports are communicated with the inner circumferences of the mold cavities, and the material barrel is communicated with the feeding runners through the cross runners. The center feeding die-casting mold enables the die-casting piece to be close in strength in all directions and not apt to deform or discard.
Description
Technical field
The present invention relates to the die casting field, especially a kind of die casting each to intensity approaching, the central feeding compression mod that die casting is not easy to produce distortion and scraps.
Background technology
The die casting that some ring-types and peripheral shape are complicated; Like the LED lighting device radiator that peripheral distribution has several cooling fins and circle distribution has several precasting through holes in the end face upper edge; These aluminum alloy die castings are if adopt general flow passage system to carry out die casting; Die casting each to intensity can be variant, die casting is easy to generate distortion even produces to be scrapped; The disclosure of the Invention of Chinese patent notification number CN201776428U a kind of motor rotor die-casting mould runner plate; Include plate; Hole, four mould positions is arranged on the plate, and hole, said mould position is arranged in array, and a side in hole, mould position has the runnerless injection hole; The runnerless injection hole is connected with hole, four mould positions respectively through runner, and there is locating hole at the edge of plate.The runnerless injection hole of this compression mod is the side that charging aperture is positioned at hole, mould position periphery; Be used for some ring-types and the complicated die casting of peripheral shape like LED lighting device radiating piece; Exist die casting each to intensity can be variant, die casting is easy to generate distortion even produces the deficiency of scrapping; Therefore, design a kind of die casting each to intensity approaching, the central feeding compression mod that die casting is not easy to produce distortion and scraps becomes problem demanding prompt solution.
Summary of the invention
The objective of the invention is in order to overcome present ring-type and peripheral shape are positioned at hole, mould position than the charging aperture of the compression mod of complicated die casting a side; Exist die casting each to intensity can be variant; Die casting is easy to generate distortion even produces the deficiency of scrapping; Provide a kind of die casting each to intensity approaching, the central feeding compression mod that die casting is not easy to produce distortion and scraps.
Concrete technical scheme of the present invention is:
A kind of central feeding compression mod comprises cover half, dynamic model, flow passage system and is positioned at the some push rods at dynamic model place; Described fixed half and moving half surrounds and constitutes several die cavities; Described die cavity is annular die cavity; Described flow passage system comprises the charging runner that barrel, crossing current road and number equate with the die cavity number; The outside of described charging runner is provided with the charging aperture that at least two edges circumferentially are uniformly distributed with; Described charging runner is coaxial with die cavity, the interior Zhou Liantong of charging aperture and die cavity, and barrel is communicated with the charging runner through the crossing current road.When this central feeding compression mod uses; The aluminum alloy materials of fusion gets into the center that is positioned at each die cavity and the charging runner coaxial with die cavity respectively through barrel, crossing current road; The charging aperture that has through each incoming flow road gets into die cavity, moulding under pressure from die cavity in interior week; This central feeding compression mod make die casting each to intensity approaching, die casting is not easy to produce distortion and scraps.
As preferably, described crossing current road comprises the branch flow passage that sprue and number equate with the die cavity number; Described barrel is communicated with an end of branch flow passage through sprue, and the other end of branch flow passage is communicated with the charging runner.Simple and practical.
As preferably, the total sectional area of described charging aperture with the total sectional area of charging runner and the ratio of the total sectional area in crossing current road is: 1:15:20 to 1:20:30, the sectional area of barrel is greater than the total sectional area in crossing current road.The sectional area of charging aperture is less when being beneficial to pushing off the slag and cleaning and the die casting easy separation, and the sectional area of crossing current road and charging runner is beneficial to pushing off the slag more greatly and thermal capacity is beneficial to the aluminum alloy materials entering of fusion more greatly and is full of die cavity.
As preferably, described dynamic model comprises the mavable module core that dynamic model seat and number equate and are fixedly connected with the dynamic model seat with the die cavity number; Described cover half comprises the pressing plate that cover half benevolence, fixed head, cover plate, at least one spacing guide pin, several stage clips and number that solid plate, number equate with the mavable module core number equate with the stage clip number; Described cover half benevolence is positioned at solid plate and corresponding with mavable module core, and fixed head is pushed down cover half benevolence and is fixedly connected with solid plate; An each cover half benevolence and a corresponding mavable module core surround and constitute a die cavity; Described cover plate is provided with the through hole that number and stage clip number equate and run through two ends; Described stage clip is positioned at through hole and an end contacts with solid plate, and pressing plate is pushed down the other end of stage clip and is fixedly connected with the other end of cover plate; Described spacing guide pin be shaped as multidiameter shape; The end that dynamic model seat and solid plate are relative is provided with outside diameter coupling and the length of diameter and the spacing guide pin counterbore greater than the length of the big end of spacing guide pin, and solid plate is provided with the guide hole that the end diameter that runs through two ends and diameter and spacing guide pin matees; Described spacing guide pin is positioned at counterbore, and the small end of spacing guide pin passes guide hole and is fixedly connected with cover plate; Described barrel is positioned at cover plate, and the crossing current road is positioned at an end relative with solid plate of cover plate; Described charging runner be shaped as taper type, the charging runner is positioned at cover half benevolence, the small end of charging runner is positioned at an end relative with cover plate of cover half benevolence, charging aperture is positioned at the big end of charging runner.When this central feeding compression mod uses, when the aluminum alloy materials of fusion gets into after the die cavity moulding under pressure the demoulding material returned; Dynamic model motion separates with cover half, is positioned at the stage clip release of the through hole of cover plate, under the stage clip effect, solid plate is separated with cover plate, breaks being connected of charging runner and cross gate, and the frictional force between dependence foundry goods and die cavity is stayed in the dynamic model die casting; Start the liftout system, promote push rod and eject die casting; Spacing guide pin is used to limit the separating distance of solid plate and cover plate.The dynamic model of this central feeding compression mod and cover half structure can make the demoulding material returned carry out in two steps, and the demoulding material returned is convenient; Mavable module core and cover half benevolence have several convenient single maintenances or replacing and reduce cost.
As preferably, the corresponding arrangement in a row of described mavable module core with cover half benevolence.The convenient making.
As preferably, the end that described dynamic model and cover half are relative is provided with the exhaust duct that some the sides with dynamic model connect.Be beneficial to exhaust.
As preferably, described exhaust duct is arranged side by side, and the two ends of exhaust duct connect with the relative dual-side of dynamic model respectively.The two ends that make the operator avoid exhaust duct guarantee safety.
Compared with prior art, the invention has the beneficial effects as follows: one. this central feeding compression mod make die casting each to intensity approaching, die casting is not easy to produce distortion and scraps.Two. the dynamic model of this central feeding compression mod and cover half structure can make the demoulding material returned carry out in two steps, and the demoulding material returned is convenient; Mavable module core and cover half benevolence have several convenient single maintenances or replacing and reduce cost; The convenient making of the corresponding arrangement in a row of mavable module core with cover half benevolence.Three. flow passage system is simple and practical; The sectional area of charging aperture is less when being beneficial to pushing off the slag and cleaning and the die casting easy separation, and the sectional area of crossing current road and charging runner is beneficial to pushing off the slag more greatly and thermal capacity is beneficial to the aluminum alloy materials entering of fusion more greatly and is full of die cavity.Four. exhaust duct is beneficial to exhaust, and exhaust duct is arranged side by side and two ends connect with the relative dual-side of dynamic model respectively, and the two ends that make the operator avoid exhaust duct guarantee safety.
Description of drawings
Fig. 1 is a kind of structural representation of the present invention;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the flow passage system sketch map of Fig. 1;
Fig. 4 is the exhaust duct sketch map of Fig. 1.
Among the figure: push rod-1, die cavity-2, dynamic model seat-3, counterbore-31, mavable module core-4, solid plate-5, guide hole-51, cover half benevolence-6, cover plate-7, through hole-71, fixed head-8, spacing guide pin-9, stage clip-10, pressing plate-11, barrel-12, crossing current road-13, sprue-131, branch flow passage-132, charging runner-14, charging aperture-15, exhaust duct-16.
The specific embodiment
Below in conjunction with shown in the accompanying drawing the present invention is described further.
Shown in accompanying drawing 1, accompanying drawing 2: a kind of central feeding compression mod comprises cover half, dynamic model, flow passage system and is positioned at eight push rods 1 at dynamic model place; Described fixed half and moving half surrounds and constitutes four die cavities 2; Described die cavity 2 is annular die cavity 2.
Described dynamic model comprises four mavable module cores 4 that dynamic model seat 3 and number and die cavity 2 numbers equate and are connected with dynamic model seat 3 screws.
Described cover half comprises four pressing plates 11 that four cover half benevolence 6 that solid plate 5, number equate with mavable module core 4 numbers, cover plate 7, fixed head 8, four spacing guide pins 9, four stage clips 10 and number equate with stage clip 10 numbers; Cover half benevolence 6 is positioned at solid plate 5 and corresponding with mavable module core 4, and fixed head 8 is pushed down cover half benevolence 6 and is connected with solid plate 5 screws; Each cover half benevolence 6 is surrounded with a corresponding mavable module core 4 and is constituted a die cavity 2; Cover plate 7 has number equates and run through two ends with stage clip 10 numbers four through holes 71; Stage clip 10 is positioned at through hole 71 and an end contacts with solid plate 5, and pressing plate 11 is pushed down the other end of stage clip 10 and is connected with the other end screw of cover plate 7; Spacing guide pin 9 be shaped as multidiameter shape; Four counterbores 31 of the length that outside diameter matched in clearance and the length that dynamic model seat 3 and solid plate 5 relative ends have diameter and a spacing guide pin 9 is held greatly greater than spacing guide pin 9, solid plate 5 has four guide holes 51 of the end diameter matched in clearance that runs through two ends and diameter and spacing guide pin 9; Spacing guide pin 9 is positioned at counterbore 31, and the small end of spacing guide pin 9 passes guide hole 51 and is threaded with cover plate 7.
Referring to figure three, described flow passage system comprises four charging runners 14 that barrel 12, crossing current road 13 and number equate with die cavity 2 numbers; The outside of charging runner 14 has the charging aperture 15 that two edges circumferentially are uniformly distributed with; Barrel 12 is positioned at cover plate 7, the end relative with solid plate 5 that crossing current road 13 is positioned at cover plate 7; Charging runner 14 be shaped as taper type, charging runner 14 is positioned at cover half benevolence 6, the end relative that the small end of charging runner 14 is positioned at cover half benevolence 6 with cover plate 7, charging aperture 15 is positioned at the big end of charging runner 14; Charging runner 14 is coaxial with die cavity 2, the interior Zhou Liantong of charging aperture 15 and die cavity 2, and barrel 12 is communicated with charging runner 14 through crossing current road 13; In the present embodiment, described crossing current road 13 comprises four branch flow passages 132 that sprue 131 and number equate with die cavity 2 numbers; Barrel 12 is communicated with an end of branch flow passage 132 through sprue 131, and the other end of branch flow passage 132 is communicated with charging runner 14.
The sectional area of described barrel 12 is greater than the total sectional area in crossing current road 13, and the total sectional area of charging aperture 15 with the total sectional area of charging runner 14 and the ratio of the total sectional area in crossing current road 13 is: 1:15:20 to 1:20:30; In the present embodiment, the total sectional area of described charging aperture 15 with the total sectional area of charging runner 14 and the ratio of the total sectional area in crossing current road 13 is: 1:20:25.
Referring to figure four, the end that described dynamic model and cover half are relative has six exhaust ducts 16 that connect with the side of dynamic model; In the present embodiment, described exhaust duct 16 is arranged side by side, and the two ends of exhaust duct 16 connect with the relative dual-side of dynamic model respectively.
When this central feeding compression mod uses; The aluminum alloy materials of fusion gets into the center that is positioned at each die cavity 2 and four the charging runners 14 coaxial with die cavity 2 respectively through barrel 12, crossing current road 13; Two charging apertures 15 that have through each charging runner 14 are from four die cavities 2, the moulding under pressure of getting into respectively in interior week of die cavity 2; Behind the die casting molding during demoulding material returned; The dynamic model motion separates with cover half, and the stage clip 10 that is positioned at the through hole 71 of cover plate 7 discharges, under stage clip 10 effects; Solid plate 5 is separated with cover plate 7; Break being connected of charging runner 14 and cross gate, rely on the frictional force of 2 of foundry goods and die cavities, die casting is stayed in the dynamic model; Start the liftout system, promote push rod 1 and eject die casting; Spacing guide pin 9 is used to limit the separating distance of solid plate 5 and cover plate 7.
The invention has the beneficial effects as follows: this central feeding compression mod make die casting each to intensity approaching, die casting is not easy to produce distortion and scraps.The dynamic model of this central feeding compression mod and cover half structure can make the demoulding material returned carry out in two steps, and the demoulding material returned is convenient; Mavable module core and cover half benevolence have several convenient single maintenances or replacing and reduce cost; The convenient making of the corresponding arrangement in a row of mavable module core with cover half benevolence.Flow passage system is simple and practical; The sectional area of charging aperture is less when being beneficial to pushing off the slag and cleaning and the die casting easy separation, and the sectional area of crossing current road and charging runner is beneficial to pushing off the slag more greatly and thermal capacity is beneficial to the aluminum alloy materials entering of fusion more greatly and is full of die cavity.Exhaust duct is beneficial to exhaust, and exhaust duct is arranged side by side and two ends connect with the relative dual-side of dynamic model respectively, and the two ends that make the operator avoid exhaust duct guarantee safety.
It is apparent to one skilled in the art that the present invention can change into multiple mode, and such change is not thought and departed from the scope of the present invention.The conspicuous modification of the technical staff to said field that all are such is within the scope that is included in this claim.
Claims (7)
1. central feeding compression mod comprises cover half, dynamic model, flow passage system and is positioned at the some push rods at dynamic model place; Described fixed half and moving half surrounds and constitutes several die cavities; It is characterized in that: described die cavity is annular die cavity; Described flow passage system comprises the charging runner that barrel, crossing current road and number equate with the die cavity number; The outside of described charging runner is provided with the charging aperture that at least two edges circumferentially are uniformly distributed with; Described charging runner is coaxial with die cavity, the interior Zhou Liantong of charging aperture and die cavity, and barrel is communicated with the charging runner through the crossing current road.
2. central feeding compression mod according to claim 1 is characterized in that: described crossing current road comprises the branch flow passage that sprue and number equate with the die cavity number; Described barrel is communicated with an end of branch flow passage through sprue, and the other end of branch flow passage is communicated with the charging runner.
3. central feeding compression mod according to claim 1; It is characterized in that: the total sectional area of described charging aperture with the total sectional area of charging runner and the ratio of the total sectional area in crossing current road is: 1:15:20 to 1:20:30, the sectional area of barrel is greater than the total sectional area in crossing current road.
4. according to claim 1 or 2 or 3 described central feeding compression mods, it is characterized in that: described dynamic model comprises the mavable module core that dynamic model seat and number equate and are fixedly connected with the dynamic model seat with the die cavity number; Described cover half comprises the pressing plate that cover half benevolence, fixed head, cover plate, at least one spacing guide pin, several stage clips and number that solid plate, number equate with the mavable module core number equate with the stage clip number; Described cover half benevolence is positioned at solid plate and corresponding with mavable module core, and fixed head is pushed down cover half benevolence and is fixedly connected with solid plate; An each cover half benevolence and a corresponding mavable module core surround and constitute a die cavity; Described cover plate is provided with the through hole that number and stage clip number equate and run through two ends; Described stage clip is positioned at through hole and an end contacts with solid plate, and pressing plate is pushed down the other end of stage clip and is fixedly connected with the other end of cover plate; Described spacing guide pin be shaped as multidiameter shape; The end that dynamic model seat and solid plate are relative is provided with outside diameter coupling and the length of diameter and the spacing guide pin counterbore greater than the length of the big end of spacing guide pin, and solid plate is provided with the guide hole that the end diameter that runs through two ends and diameter and spacing guide pin matees; Described spacing guide pin is positioned at counterbore, and the small end of spacing guide pin passes guide hole and is fixedly connected with cover plate; Described barrel is positioned at cover plate, and the crossing current road is positioned at an end relative with solid plate of cover plate; Described charging runner be shaped as taper type, the charging runner is positioned at cover half benevolence, the small end of charging runner is positioned at an end relative with cover plate of cover half benevolence, charging aperture is positioned at the big end of charging runner.
5. central feeding compression mod according to claim 4 is characterized in that: the corresponding arrangement in a row with cover half benevolence of described mavable module core.
6. according to claim 1 or 2 or 3 described central feeding compression mods, it is characterized in that: the end that described dynamic model and cover half are relative is provided with some the exhaust ducts that connect with the side of dynamic model.
7. central feeding compression mod according to claim 6 is characterized in that: described exhaust duct is arranged side by side, and the two ends of exhaust duct connect with the relative dual-side of dynamic model respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210057670 CN102626775B (en) | 2012-03-07 | 2012-03-07 | Center feeding die-casting mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210057670 CN102626775B (en) | 2012-03-07 | 2012-03-07 | Center feeding die-casting mold |
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|---|---|
| CN102626775A true CN102626775A (en) | 2012-08-08 |
| CN102626775B CN102626775B (en) | 2013-11-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201210057670 Active CN102626775B (en) | 2012-03-07 | 2012-03-07 | Center feeding die-casting mold |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108907139A (en) * | 2018-07-28 | 2018-11-30 | 天津市慧德工贸有限公司 | The modified casting die of pump case in a kind of automobile engine |
| CN114309541A (en) * | 2022-03-04 | 2022-04-12 | 浙江华朔科技股份有限公司 | Die-casting die for producing shell and production method of shell |
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| SU1217909A1 (en) * | 1984-08-27 | 1986-03-15 | Горьковский Автомобильный Завод | Press mould for manufacturing investement patterns |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108907139A (en) * | 2018-07-28 | 2018-11-30 | 天津市慧德工贸有限公司 | The modified casting die of pump case in a kind of automobile engine |
| CN114309541A (en) * | 2022-03-04 | 2022-04-12 | 浙江华朔科技股份有限公司 | Die-casting die for producing shell and production method of shell |
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| CN102626775B (en) | 2013-11-06 |
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Denomination of invention: Center feeding die casting mold Effective date of registration: 20230707 Granted publication date: 20131106 Pledgee: Zhejiang Tailong Commercial Bank Co.,Ltd. Ningbo Beilun sub branch Pledgor: NINGBO HUANYA MANUFACTORY Co.,Ltd. Registration number: Y2023980047763 |