CN217095633U - Multi-runner low-pressure casting slag discharging mold for hub - Google Patents
Multi-runner low-pressure casting slag discharging mold for hub Download PDFInfo
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Abstract
本实用新型公开了一种轮毂多浇道低压铸造排渣模具，属于汽车轮毂制造模具领域。所述模具包括上模、下模、侧模、分流锥、底注浇口、侧模浇口，其中上模、下模、侧模组成模具本体，上模、下模、侧模和分流锥之间形成铸造腔；型腔的形状为轮毂的形状,金属液通过底注浇口和侧模浇口流入到型腔内部，底注浇口位于下模的中部，两个侧模浇口对称分布于轮辐与轮辋的交界处，金属液凝固成型后，得到轮毂铸件，通过多浇道浇注可提高轮毂的生产效率，减少夹杂，提高铸件质量。相比传统低压铸造底浇而言，多浇道浇注时，不仅能提高生产效率，且充型时侧模浇口可以将金属液中的夹杂物集中到侧模浇口内，减少夹杂对轮毂质量的影响，凝固时侧模浇口还可以为轮毂提供金属液补缩，减少铸造缺陷，提高轮毂质量。
The utility model discloses a multi-runner low-pressure casting slag discharge mold for a wheel hub, which belongs to the field of automobile wheel hub manufacturing molds. The mold includes an upper mold, a lower mold, a side mold, a shunt cone, a bottom casting gate, and a side mold gate, wherein the upper mold, the lower mold, and the side mold form the mold body, and the upper mold, the lower mold, the side mold, and the shunt cone. A casting cavity is formed between them; the shape of the cavity is the shape of the hub, and the molten metal flows into the cavity through the bottom casting gate and the side mold gate. The bottom casting gate is located in the middle of the lower mold, and the two side mold gates are symmetrical It is distributed at the junction of the spoke and the rim. After the molten metal is solidified and formed, the hub casting is obtained. The production efficiency of the hub can be improved, the inclusions can be reduced, and the casting quality can be improved by pouring with multiple runners. Compared with traditional low-pressure casting bottom pouring, multi-runner pouring can not only improve production efficiency, but also the side mold gate can concentrate the inclusions in the molten metal into the side mold gate during filling, reducing the impact of inclusions on the quality of the hub. During solidification, the side mold gate can also provide liquid metal feeding for the hub, reducing casting defects and improving the quality of the hub.
Description
Technical Field
The utility model relates to an automobile wheel hub waters sediment mould of arranging more belongs to automobile wheel hub and makes the mould field.
Background
The production process of the aluminum alloy hub comprises low-pressure casting, extrusion casting, casting spinning, forging, casting forging, semi-solid die forging and the like. Compared with other processes, the low-pressure casting hub has the advantages of compact structure, higher mechanical property, high metal utilization rate and low cost, so that the low-pressure casting hub becomes a mainstream process for manufacturing the current aluminum alloy hub. However, the low-pressure casting process still has some defect problems which are not solved, such as the mechanical properties are not up to the standard caused by slag inclusion at the outer rim, the air entrainment at the junction of the spoke and the rim, and the inclusion at the spoke. In order to ensure the quality of the wheel hub, the traditional process usually adopts means such as refining purification, deterioration refinement and the like to reduce gas and slag inclusion in molten metal, but the process cost is too high and the efficiency is low.
Disclosure of Invention
The utility model aims at solving the problem in the prior art, provide a production efficiency height, can reduce impurity and gas in the molten metal and guarantee the row's sediment mould of watering more of wheel hub quality. The upper die, the lower die and the side dies which are separately arranged form a die body, a bottom pouring gate is arranged on the lower die, two side die pouring gates are additionally arranged on the bottom pouring gate, and molten metal is poured in through the bottom pouring gate and the side die pouring gates together; compare traditional low pressure casting bottom water, when pouring water the pouring more, can not only improve production efficiency, and the side form runner can concentrate the inclusion in the molten metal in the side form runner when filling the mould in, reduces and mix with the influence to the wheel hub quality, and the side form runner still can be for wheel hub provides the molten metal feeding when solidifying, reduces the casting defect, improves the wheel hub quality.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a multi-runner low-pressure casting slag discharging mold for a hub comprises an upper mold 1, a lower mold 2, a side mold 3, a spreader cone 4, a bottom pouring gate 5 and a side mold gate, wherein the upper mold 1, the lower mold 2 and the side mold 3 form a mold body, and a casting cavity 6 is formed among the upper mold 1, the lower mold 2, the side mold 3 and the spreader cone 4; the upper die 1 and the lower die 2 are arranged up and down correspondingly, the spreader cone 4 is fixed with the upper die through a bolt, and the middle part of the lower die 2 is provided with a bottom pouring gate 5 which is opposite to the spreader cone 4; the two side dies 3 are symmetrically arranged and comprise a conventional side die 301 and a pouring side die 302, the conventional side die 301 and the pouring side die 302 are both in a quarter-arc shape, the two conventional side dies 301 and the two pouring side dies 302 form a circular ring, the ring formed by the side dies 3 is arranged around the upper die 1 and the lower die 2, and the upper side and the lower side of the side die 3 are respectively connected with the upper die 1 and the lower die 2; a side mold gate is arranged inside the pouring side mold 302, and the side mold gate is formed by: runner 7, hemispherical storage body 8, terraced platform are watered 9, runner 10, 11 constitutions are watered to chevron shape, water 7 and be similar cylinder type, and upper portion is connected with hemispherical storage body 8, and the lower part is watered 9 with trapezoidal, and trapezoidal 9 lower parts of watering are connected with runner 10, and the chevron shape is watered 11 and is connected in watering 7 left surface, and 11 another parts are watered with the casting chamber 6 to the chevron shape.
Further, the bottom pouring gate 5 in the middle of the lower die 2 is also provided with two stepped holes which are increased in sequence: the bottom-pouring gate lower stepped hole 501 and the bottom-pouring gate upper stepped hole 502 increase the cross-sectional area of the gate.
Furthermore, the section of the sprue spreader 4 is in an inverted herringbone shape, so that the impact of molten metal on a die can be reduced, and the convection of the molten metal can be reduced.
Furthermore, the angle between the pouring gate and the vertical direction is 11 degrees, so that the molten metal can be prevented from scouring the pouring gate, and the molten metal is mixed in the hemispherical pouring gate and is positioned at one end far away from the casting.
Furthermore, the herringbone pouring channel 11 is smoothly connected with the casting and the pouring channel at a certain included angle, so that the flowing speed of molten metal can be reduced, convection is reduced, and entrainment of air is avoided.
Further, a trapezoidal pouring gate 9 and a residue through hole 12 are arranged at the joint of the pouring gate 7 and the pouring gate 10, wherein the trapezoidal pouring gate 9 is composed of a side die pouring gate lower stepped hole 901 and a side die pouring gate upper stepped hole 902.
Furthermore, the diameters of the lower stepped hole 901 of the side mold gate, the upper stepped hole 902 of the side mold gate and the filter residue through hole 12 are slightly larger than that of the pouring channel 7, so that the scum filtering function can be realized.
A multi-runner low-pressure casting slag discharging mold for an automobile hub comprises the following operation steps:
the method comprises the following steps: and assembling parts such as an upper die, a lower die, a side die, a spreader cone and the like, and connecting the pouring gates by bolts.
Step two: the molten metal is first pressed in from the bottom sprue gate by low pressure and then from the side die gate.
Step three: and the metal liquid of the bottom pouring gate is filled with the spoke of the casting cavity firstly through the control of pressure.
Step four: by controlling the pressure, the molten metal at the bottom pouring gate is converged with the molten metal at the side die pouring gate at the junction of the herringbone pouring gate and the casting.
Step five: and filling molten metal into the casting cavity together with the side mold pouring gate and the bottom pouring gate.
Step six: and stopping the injection of the molten metal after the casting cavity is filled with the molten metal, and pressurizing for a period of time.
Step seven: and after the casting is solidified, disassembling the mold, checking the formed casting, and polishing unqualified places and the like.
Compared with the prior art, the utility model has the advantages of it is following:
(1) the utility model discloses set up the multichannel runner, only the work of bottom pouring runner at the initial stage, after the metal liquid filled the spoke, the rim part was filled to the side form runner on both sides, had so greatly avoided the convection current's of metal liquid the condition, had improved simultaneously and filled the type efficiency, reduced and mingled with; the bottom pouring gate and the side die pouring gate are provided with a step hole and a filter residue through hole, so that the sectional area of the pouring gates is increased, and a certain scum filtering effect is achieved.
(2) The pouring channel of the ladder platform of the utility model is smoothly connected with the casting and the pouring channel at a certain included angle, so that the flowing speed of the molten metal can be reduced, the convection can be reduced, and the entrainment gas can be avoided; the sprue spreader is arranged in the direction opposite to the bottom pouring gate, so that the impact of molten metal on a mold can be reduced, and the convection of the molten metal is reduced. The pouring gate has a certain angle with the vertical direction, so that the metal liquid can be reduced from scouring the pouring gate, and the metal liquid is mixed with one end of the hemispherical pouring gate, which is far away from the casting.
(3) The side form runner can concentrate the inclusion in the molten metal in hemispherical storage in, reduce being involved in of inclusion, the side form runner can provide the molten metal feeding for wheel hub when solidifying, reduces the casting defect, improves the wheel hub quality.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a reject runner;
FIG. 3 is an isometric view from above;
FIG. 4 is an isometric view of the lower die;
FIG. 5 is an isometric view of a conventional sideform;
FIG. 6 is an isometric view of a cast side form;
FIG. 7 is an isometric view of a side-form reject runner.
The reference numbers in the figures: 1-upper mould; 2-lower mould; 3-side die; 301-conventional side form; 302-pouring a side mold; 4-a spreader cone; 5-bottom pouring gate; 501-bottom pouring gate lower shoulder hole; 502-bottom pouring gate upper step hole 6-casting cavity; 7-pouring channel; 8-hemispherical reservoir; 9-a terrace runner; 901-side mould sprue lower shoulder hole; 902-step hole on side mould sprue; 10-a gate; 11-herringbone runners; 12-filter residue through hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described with reference to the accompanying drawings. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
The utility model aims to solve the problems in the prior art and provide a multi-runner deslagging mould which has high production efficiency, can reduce impurities and gas in molten metal and ensure the quality of a wheel hub; the upper die 1, the lower die 2 and the side dies 3 which are separately arranged form a die body, the lower die 2 is provided with a bottom pouring gate 5, two side die pouring gates are additionally arranged on the bottom pouring gate 5, and metal liquid is injected together through the bottom pouring gate 5 and the side die pouring gates. Compare traditional low pressure casting bottom casting and water, when the type was filled to many runners, the side form runner can concentrate the inclusion in the molten metal in the side form runner, reduces being involved in of inclusion, and the side form runner can provide the molten metal feeding for wheel hub during the solidification, reduces the casting defect, improves wheel hub quality.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a sediment mould is arranged in low pressure casting of wheel hub multi-runner which characterized in that: the mold comprises an upper mold 1, a lower mold 2, a side mold 3, a sprue 4, a bottom pouring sprue 5 and a side mold sprue, wherein the upper mold 1, the lower mold 2 and the side mold 3 form a mold body, and a casting cavity 6 is formed among the upper mold 1, the lower mold 2, the side mold 3 and the sprue 4.
Further, go up mould 1 and lower mould 2 correspond the setting from top to bottom, reposition of redundant personnel awl 4 passes through the bolt and fixes with last mould 1, 2 middle parts of lower mould are equipped with end notes runner 5, just to reposition of redundant personnel awl 4.
Furthermore, the number of the side molds 3 is two, each of the two side molds is two, the two side molds are symmetrically arranged and comprise a conventional side mold 301 and an injection molding side mold 302, a single side mold 3 is in a quarter-arc shape, the four side molds 3 form a circular ring, the circular ring formed by the side molds 3 is arranged around the upper mold 1 and the lower mold 2, and the upper side and the lower side of each side mold 3 are respectively connected with the upper mold 1 and the lower mold 2.
Further, a side mold gate is arranged on the outer side of the injection side mold 302, and the side mold gate is formed by: runner 7, hemispherical storage body 8, terraced platform are watered 9, runner 10, 11 constitutions are watered to chevron shape, water 7 and be similar cylinder type, and upper portion is connected with hemispherical storage body 8, and the lower part is watered 9 with trapezoidal, and trapezoidal 9 lower parts of watering are connected with runner 10, and the chevron shape is watered 11 and is connected in watering 7 left surface, and 11 another parts are watered with the casting chamber 6 to the chevron shape.
Further, the bottom pouring gate 5 in the middle of the lower die 2 is also provided with two stepped holes which are increased in sequence: the bottom-pouring gate lower stepped hole 501 and the bottom-pouring gate upper stepped hole 502 increase the sectional area of the gate 10.
Furthermore, the section of the sprue spreader 4 is in an inverted herringbone shape, so that the impact of molten metal on a die can be reduced, and the convection of the molten metal can be reduced.
Furthermore, the angle between the pouring gate 7 and the vertical direction is 11 degrees, so that the molten metal can be prevented from scouring the pouring gate 7 and simultaneously is mixed in the hemispherical pouring gate 7 and is positioned at one end far away from the casting.
Furthermore, the herringbone pouring gate 11 is smoothly connected with the casting and the pouring gate 7 at a certain included angle, so that the flowing speed of molten metal can be reduced, the convection is reduced, and the entrainment is avoided.
Further, a trapezoidal pouring gate 9 and a residue through hole 12 are arranged at the joint of the pouring gate 7 and the pouring gate 10, wherein the trapezoidal pouring gate 9 is composed of a side die pouring gate lower stepped hole 901 and a side die pouring gate upper stepped hole 902.
Furthermore, the diameters of the lower stepped hole 901 of the side mold gate, the upper stepped hole 902 of the side mold gate and the filter residue through hole 13 are slightly larger than that of the pouring channel 7, so that the scum filtering function can be realized.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modifications, equivalents, improvements and the like which are made without departing from the spirit and scope of the present invention should be considered within the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims, or the equivalents of such scope and boundaries.
Claims (5)
1. The utility model provides a sediment mould is arranged in low pressure casting of wheel hub multi-runner which characterized in that: the casting mold comprises an upper mold (1), a lower mold (2), a side mold (3), a sprue (4), a bottom injection sprue (5) and a side mold sprue, wherein the upper mold (1), the lower mold (2) and the side mold (3) form a mold body, and a casting cavity (6) is formed among the upper mold (1), the lower mold (2), the side mold (3) and the sprue (4); the upper die (1) and the lower die (2) are arranged up and down correspondingly, the spreader cone (4) is fixed with the upper die through a bolt, and the middle part of the lower die (2) is provided with a bottom pouring gate (5) which is opposite to the spreader cone (4); the two side molds (3) are symmetrically arranged and comprise a conventional side mold (301) and a pouring side mold (302), the conventional side mold (301) and the pouring side mold (302) are both in a quarter-arc shape, the two conventional side molds (301) and the two pouring side molds (302) form a circular ring, the circular ring formed by the side molds (3) is arranged around the upper mold (1) and the lower mold (2), and the upper side and the lower side of the side mold (3) are respectively connected with the upper mold (1) and the lower mold (2); a side mould sprue is arranged inside the pouring side mould (302), and the side mould sprue is formed by: runner (7), hemispherical storage body (8), terrace runner (9), runner (10), chevron shape are watered (11) and are constituteed, water (7) and be similar cylinder type, and upper portion is connected with hemispherical storage body (8), and the lower part is connected with trapezoidal runner (9), and trapezoidal runner (9) lower part is connected with runner (10), and the chevron shape is watered (11) and is connected in watering (7) left surface, and the chevron shape is watered (11) another part and is connected with casting chamber (6).
2. The hub multi-runner low-pressure casting deslagging mold of claim 1, wherein: the bottom pouring gate (5) at the middle part of the lower die (2) is also provided with two stepped holes which are increased in sequence: a bottom pouring gate lower stepped hole (501) and a bottom pouring gate upper stepped hole (502).
3. The hub multi-runner low-pressure casting deslagging mold of claim 1, wherein: the angle between the pouring gate (7) and the vertical direction is 11 degrees.
4. The hub multi-runner low-pressure casting deslagging mold of claim 1, wherein: a trapezoidal pouring gate (9) and a filter residue through hole (12) are arranged at the joint of the pouring gate (7) and the pouring gate (10), wherein the trapezoidal pouring gate (9) is composed of a side die pouring gate lower stepped hole (901) and a side die pouring gate upper stepped hole (902).
5. The hub multi-runner low-pressure casting deslagging mold of claim 4, wherein: the diameters of the lower stepped hole (901) of the side mold gate, the upper stepped hole (902) of the side mold gate and the filter residue through hole (12) are slightly larger than that of the pouring gate (7).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220757053.8U CN217095633U (en) | 2022-04-03 | 2022-04-03 | Multi-runner low-pressure casting slag discharging mold for hub |
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| CN202220757053.8U CN217095633U (en) | 2022-04-03 | 2022-04-03 | Multi-runner low-pressure casting slag discharging mold for hub |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115319057A (en) * | 2022-08-31 | 2022-11-11 | 浙江今飞凯达轮毂股份有限公司 | Aluminum alloy truck wheel hub low pressure casting forming device |
| CN115945668A (en) * | 2022-08-31 | 2023-04-11 | 浙江今飞凯达轮毂股份有限公司 | A low-pressure double-sided pouring mounting disk spoke plate reinforced casting molding process for truck hub |
| CN116237459A (en) * | 2023-01-30 | 2023-06-09 | 昆明理工大学 | A casting process of semi-autogenous mill cylinder liner based on V-method casting |
-
2022
- 2022-04-03 CN CN202220757053.8U patent/CN217095633U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115319057A (en) * | 2022-08-31 | 2022-11-11 | 浙江今飞凯达轮毂股份有限公司 | Aluminum alloy truck wheel hub low pressure casting forming device |
| CN115945668A (en) * | 2022-08-31 | 2023-04-11 | 浙江今飞凯达轮毂股份有限公司 | A low-pressure double-sided pouring mounting disk spoke plate reinforced casting molding process for truck hub |
| CN115319057B (en) * | 2022-08-31 | 2024-12-03 | 浙江今飞凯达轮毂股份有限公司 | Low-pressure casting device for hub of aluminum alloy truck |
| CN116237459A (en) * | 2023-01-30 | 2023-06-09 | 昆明理工大学 | A casting process of semi-autogenous mill cylinder liner based on V-method casting |
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