CN1277633C

CN1277633C - Die particularly for on-road vehicle wheels

Info

Publication number: CN1277633C
Application number: CN02817152.7A
Authority: CN
Inventors: H·G·包姆加特纳
Original assignee: Bbs- Co Ltd
Current assignee: Bbs- Co Ltd; BBS Riva SpA
Priority date: 2001-08-28
Filing date: 2002-07-15
Publication date: 2006-10-04
Anticipated expiration: 2022-07-15
Also published as: WO2003020459A2; DE60219032T2; AU2002325326A1; WO2003020459A3; EP1420911B1; ATE357301T1; DE60219032D1; EP1420911A2; JP2005501721A; ITPD20010208A1; US20040194906A1; PL366788A1; ES2283584T3; CN1549754A

Abstract

A die particularly for on/road vehicle wheels, of the type that comprises lower (11), upper (13) and lateral (14) die parts that form an impression to be filled with molten material, comprising at least two die filling points arranged at two openings of the design of a wheel (15) where the lower die part and the upper die part are in contact when the die is the closed configuration.

Description

The mould that is used for the wheel of road vehicle

Technical field

The present invention relates to a kind of mould that is used for the wheel of road vehicle.

Background technology

At present, the alloy in lightweight wheel that produces by low-pressure die casting is that the mould by means of a shell-type is shaped, and in this mould, fills material from the mold center's feeding that is positioned at the die cavity center that forms wheel shape.

Mould is installed on the hydraulic press, to carry out the open and close action.

Be provided with a plus-pressure furnace below the mould supporting base, it comprises liquid alloy, and by a rising head with control its filled PLC (electronic controller) in steps introduces alloy mould under low-pressure center electronically.

Mould was filled in a machine cycle, and the described cycle changed between five to six minutes, and comprised filled, feeding, the step of cooling off, solidify, being shaped and carry out the mould preparation for next wheel continuously.

Little and when having foolproof design at wheel, carry out feed energy from the center of wheel material is evenly distributed, can not produce turbulent problem, and a good charging is provided.

But, when wheel design is complicated especially aspect shape and thickness, just may produces some holes, and under X ray, can observe them.

Usually, these holes are that turbulent motion and the overheated bad charging that causes owing to alloy produces.

Summary of the invention

Target of the present invention provides a kind of mould that is used for the wheel of road vehicle, and it solves or obviously alleviated the problem of known mould-type.

Under this target, an object of the present invention is to provide a kind of owing to it has improved the mould of feeding step.

Another purpose provide a kind of can form have less under X ray the mould of the wheel of visible pores defective.

Another purpose provides a kind of mould that can obtain to have the inhomogeneity wheel of high alloy.

Another purpose provides a kind of mould that can form the wheel of its mechanical performance improvement.

Another purpose provides a kind of mould, and by means of this mould, time machine cycle shortens, and particularly relevantly fills, time of feeding and coagulation step shortens.

Another purpose provides a kind of simple in structure and the available traditional system and the mould of technology manufacturing.

This target understood of will becoming hereinafter more and the purpose of these and other are realized by a kind of mould of the wheel especially for road vehicle, such mould comprises that the formation die cavity is to fill part of the lower die, part of the upper die and the side form part of melted material, its characteristics are, mould comprises at least two dress mould points, described dress mould point is arranged in two opening parts of wheel design, and the part of the lower die contacts at described opening part with the part of the upper die when mould is in closure state.

Description of drawings

From the detailed description to some embodiments of the present invention hereinafter, it is clearer that other features and advantages of the present invention will become, and only shows these embodiment in the mode of non-limitative example in the accompanying drawings.In all accompanying drawings:

Fig. 1 and 2 be according to of the present invention, especially for two of the mould of the wheel that forms road vehicle

The drawing in side sectional elevation of embodiment;

Fig. 3 is the plane of bell embodiment illustrated in fig. 2;

Figure 4 and 5 are respectively following plane and the drawings in side sectional elevation that has according to a mould of structure of the present invention.

Fig. 6 and 7 is the planes that constitute two parts of part on the mould.

The specific embodiment

See also Fig. 1, a mould especially for the wheel of road vehicle in one first embodiment, that have according to structure of the present invention is always indicated by label 10.

Mould 10 comprises counterdie part (bottom) 11, a part of the upper die (connector) 13 and the side form part 14 of the top that is arranged on a plus-pressure furnace that is always indicated by label 12, side form part 14 totally ringwise, and, when they are in closure state, they form a die cavity, liquid alloy will fill wherein to form a wheel, and this die cavity is always indicated by label 15.

Part of the upper die 13 comprises a centerbody 13a, and it will be assemblied in an annular solid 13b; These two parts are configured as the back side shape of wheel 15 in down a zone.

11 of parts of the lower die are made of single part, and it is configured as the front shape of wheel 15 in up a zone.

Mould 10 comprises two dress mould points, hereinafter will carry out more detailed description to them, and they are arranged in two opening 17 places of the design of wheel 15, and when mould 10 was in closure state, part of the lower die 11 contacted at described opening part with part of the upper die 13.

In fact, dress mould point is that the path by the filled material that transports from smelting furnace 12 forms, these paths are made of the through hole 16 of part of the lower die 11, described through hole 16 is arranged in two isolated opening 17a places of wheel 15 design, and the pipeline (will be described in more detail below) that is connected to smelting furnace 12 is in these through holes terminations.

Pipeline is made of passage 19, and passage 19 is arranged in 11 belows, part of the lower die, and for each through hole 16 passage is set.All passages 19 are connected to a public rising head 20, and this rising head is connected to smelting furnace 12 again.

The upper end of rising head 20 is arranged in the central area of mould 10 belows, and passage 19 radially extends from the upper end of rising head 20, and the end 19a of its approximate vertical ends at through hole 16 places.

11 through hole 16 places have chamber 21 in the part of the lower die in part of the upper die 13, and these chamber relative wheels 15 roughly become radially, and form the inlet that fills material at the center and the outer rim place of wheel 15.

At chamber 21 places, part of the upper die 13 also is provided with the changed course part 22 melted material, fixing that is used to enter.

Fig. 2 show among one second embodiment, according to a mould that is used for the wheel of road vehicle of the present invention, it always indicates with label 110.

Mould 110 has a counterdie part 111, a mold 113 and side form part 114, and they are basic identical with those mould parts of mould 10.

Difference is that mould 110 comprises two rising heads 120 that are connected to plus-pressure furnace 112, for each through hole of part of the lower die 111 all is provided with a rising head.

Like this, rising head 120 is just for example by plus-pressure furnace 112 direct feedings.

About method of operating,, feeding filled, cool off, solidify, be shaped and a fabrication cycles of the step that last mould is prepared for next wheel is used mould 10/110 formation one wheel 15 by means of comprising.

Be provided with the inlet that is used for filling material at opening 17 places of wheel design, just can allow center and outer rim place while feed at wheel.

Therefore, material very distributes equably, has avoided turbulent problem, and has realized the well distributed of material.

If expand the radial passage that is connected to the part of the lower die through hole, then can realize filling good feeding, less X ray hole defective, the uniformity of alloy and the good mechanical properties of final products of material from a center riser.

In addition, the machine cycle shortens significantly, particularly adorns mould time, feeding time and setting time and shortens.

If mould comprises a plurality of rising heads by the direct feeding of plus-pressure furnace, then except the above-mentioned relevant advantage of first embodiment, the machine cycle also can further shorten, and mould time also can shorten.

In fact, have been found that the present invention has realized designed target and purpose.

The present invention is easy to make the many modifications and variations form, and these modifications and variations forms all fall within protection scope of the present invention.

Technical details can substitute with the part of other technical equivalence.

As long as material and size are fit to possible use, then they can be as required any material and sizes.

The content that is disclosed in the disclosures in Italian patent application No.PD2001A000208 of priority that the application requires is incorporated into this, for your guidance.

Claims

1. mould that is used for the wheel of road vehicle, such mould comprises that the formation die cavity is to fill part of the lower die, part of the upper die and the side form part of melted material, it is characterized in that, mould comprises at least two dress mould points, described dress mould point is arranged in two opening parts of wheel design, and the part of the lower die contacts at described opening part with the part of the upper die when mould is in closure state.

2. mould as claimed in claim 1 is characterized in that, in described dress mould point described part of the lower die of shaping and part of the upper die, to form the path that fills material.

3. mould as claimed in claim 1 is characterized in that, described part of the lower die is arranged in smelting furnace top, and is provided with through hole at described dress mould point place and passes through for filled material, and described filled material is by the pipeline conveying that is communicated with described smelting furnace.

4. mould as claimed in claim 3 is characterized in that described pipeline is made of the rising head of described smelting furnace feed, and each through hole is provided with a rising head.

5. mould as claimed in claim 3 is characterized in that, described pipeline is made of the passage that the public rising head from described smelting furnace feed stretches out, and a passage is set for each through hole.

6. mould as claimed in claim 5, it is characterized in that, the upper end of described public rising head is arranged in the approximate centre zone of described mould below, described passage begins radially to be provided with from the upper end of described public rising head, and having a vertical substantially end, described end stops in the described through hole of part of the lower die.

7. mould as claimed in claim 3, it is characterized in that, described part of the upper die has chamber above the described through hole of part of the lower die, when described chamber allows to be flowed into mould and be in closure state by the filled material that described pipeline transports between two moulds part in the formed die cavity.

8. mould as claimed in claim 7 is characterized in that described chamber is radially substantially with respect to wheel, and forms the inlet that fills material at the center and the outer rim place of described wheel.

9. mould as claimed in claim 8 is characterized in that, described part of the upper die has the changed course part that is used for filling material above the described through hole of described chamber place, part of the lower die.