CN1628005A

CN1628005A - Apparatus for manufacturing items made of aluminum alloys or light alloys

Info

Publication number: CN1628005A
Application number: CNA038034875A
Authority: CN
Inventors: 克劳迪奥·弗鲁拉
Original assignee: Esjotech S R L
Current assignee: Esjotech S R L
Priority date: 2002-02-07
Filing date: 2003-01-31
Publication date: 2005-06-15
Anticipated expiration: 2023-01-31
Also published as: BR0307545A; ITMI20020223A1; ATE314170T1; DE60303012T2; ES2256755T3; EP1472027A1; ITMI20020223A0; DE60303012D1; AU2003244478A1; CN1298462C; EP1472027B1; WO2003066254A1; HK1077248A1; TNSN04144A1

Abstract

An apparatus for manufacturing items made of aluminum, aluminum alloys, light alloys and the like, which comprises, on a platen 1, a lower die 2 and at least one upper die 3, a duct 10 for introducing liquid metal connected to a furnace, the liquid metal input duct 10 arriving from below and leading into the lower die 2 and the lower die 2 forming at least one lower impression 20, which has at least one concave portion 23 for introducing a dosed quantity of liquid metal, a male plug 8 associated with the upper die 3 and forming at least one upper impression 25 coupleable to the lower impression 20 to determine the shape of the item being cast. The upper die 3 is closed onto the lower die 2 and the male plug 8 closes the shape and acts as a flow control element for the port 24 that provides a connection to the liquid metal input duct 10.

Description

Make the equipment of aluminium alloy or light-alloy goods

Technical field

The present invention relates to make the equipment of aluminium, aluminium alloy, light-alloy or the like goods.

Background technology

As everyone knows, die casting aluminium, aluminium alloy, light-alloy or the like goods will use low pressure casting method, when making in this way, liquid metal is risen from smelting furnace through conduit enter the mould of being made up of two or more parts.

After mould was filled, liquid metal must solidify, and this generally wants the long time, but also formed bigger running channel in the liquid metal input channel.

This shortcoming that is cast with casting time length and wastes raw material, this is by described running channel and casting closely decision comparatively speaking, because be low pressure casting.

Present WO 02/089625 (this document is in conjunction with the reference as the application) according to my application, a kind of can manufacturing a finished product is described, the casting method of toe-cap cap that particularly can production pressure structure, this method is used two parts extruding near each other of the mould that forms the foundry goods die cavity, thereby material is very well-balanced through consolidated structure, and avoided the formation of running channel, also favourable on the casting time.

In this technical scheme, the amount liquid metal that provides must be more accurate, and the materials metering device of introducing an amount of raw material must be arranged.

Though this technical scheme is effectively in many aspects, consider more complicated from the viewpoint of structure.

Summary of the invention

Catalogue of the present invention be to address the above problem, a kind of equipment of making aluminium, aluminium alloy, light-alloy or the like goods is provided, this equipment makes casting structure closely needn't use the materials metering device to introduce liquid metal again, and is actually the materials that equipment is told aequum automatically.

Following at this catalogue, specific purposes of the present invention provide and a kind ofly can not form running channel and finish the equipment that coagulation step is produced finished product with the short period.

Another specific purposes of the present invention provide a kind of can with once cast a plurality of may mutually different parts and all equipment very accurately of material of getting of each foundry goods.

Another specific purposes of the present invention provide a kind of property with its structure can farthest guarantee to use reliable and safe equipment.

A further object of the present invention provides a kind of can the use and is easy to buy the element that obtains and material from the market, and considers competitive equipment from pure economic point of view.

Following manufacturing aluminium, aluminium alloy, the equipment of light-alloy or the like goods can reach this catalogue with described specific purposes and other specific purposes, seen that explanation will be clearer, described equipment comprises: a pressing plate, be positioned at the counterdie on the pressing plate, at least one patrix, the liquid metal input pipe that is connected with smelting furnace, described liquid metal input pipe leads to described counterdie from below, it is characterized by described counterdie and be provided with at least one lower mode cavity, at least one recess of the liquid metal of the introducing aequum of described lower mode cavity, plunger is connected with described patrix, described plunger is suitable for doing the motion relative with described patrix and forms at least one upper cavity, described at least one upper cavity and described at least one lower mode cavity coupling are so that the shape of decision foundry goods, described at least one patrix can be near to described at least one counterdie, described plunger is closed described shape, play the flow element of control import, above-mentioned import links to each other with described input pipe.

Description of drawings

Read to make the detailed description of the equipment of aluminium, aluminium alloy, light-alloy or the like goods, will be clearer to further feature and advantage, what draw in the accompanying drawing is the restrictive example of tool not.Accompanying drawing has:

Fig. 1 is the vertical cross section sketch of described equipment when the casting initial step;

Fig. 2 is a sectional drawing of liquid metal being introduced the counterdie step;

Fig. 3 is the sectional drawing that measures required amount liquid metal step;

Fig. 4 is the sectional drawing of patrix near the counterdie step;

Fig. 5 is the plane that the mould of 3 die cavitys is arranged;

Fig. 6 is a schematic diagram of using the toe-cap cap of the safety shoe that can produce according to equipment of the present invention.

The specific embodiment

Referring to accompanying drawing, comprise pressing plate according to the equipment of manufacturing aluminium of the present invention, aluminium alloy, light-alloy or the like goods, total is designated as 1, has a counterdie 2, one patrixes 3 to cooperate with described counterdie on it, described patrix can do near or leave moving of described counterdie.

Also have the conduit 10 of conducts liquid metal, liquid metal is from following smelting furnace 11, and described preferably liquid metal smelting furnace is a compression type; Conduit 10 passes the die cavity 20 of described pressing plate in described counterdie, and described conduit passes described pressing plate place heater 12 commonly used.

Shown in specific embodiment in, have 3 lower mode cavities be distributed in equably input pipe 10 around and be connected in the charging aperture 22 of actual formation, this charging aperture back is called the liquid metal overfall.

Described lower mode cavity 20 has a recess 23 at least, can introduce a certain amount of liquid metal, and this amount is directly related with the geometry of recess; Therefore, rely on the pressure effect of described smelting furnace that liquid metal is risen through described conduit, in fact the liquid metal of aequum is introduced recessed region or recess 23.

Can setting height(from bottom) sensor 30 to stop the rising of liquid metal, also Preset Time and put on the pressure of liquid metal and make the required spillway discharge of described liquid metal selectively.

One after described recess completes liquid metal, and the horizontal plane of liquid metal promptly descends (Fig. 3) again, thereby can accurately provide the liquid metal of aequum according to forming the position of overfall 22 that the liquid metal overflow enters the zone of recess 23.

Have at least a plunger 8 to be connected with patrix 3, can do relative motion with patrix 3, form upper cavity 25, described upper cavity cooperates the shape that forms the casting finished product with corresponding die cavity 20.What present embodiment specifically illustrated is the toe-cap cap 21 of safety shoe.

After important speciality of the present invention is that patrix 3 comes to counterdie 2 top, and after measuring required liquid metal, can close the import 24 that is connected with liquid metal input pipe 10 with respect to patrix 3 plunger movable 8, thoroughly and the liquid metal post separate, finish required metering after, described liquid metal post descends in path 10, thereby, preferably the Free Surface of described liquid metal is placed the described thermal treatment zone.

Plunger 8 is exerted pressure with respect to the motion liquid towards metal of patrix 3, described metal particularly compact, thus the design of part of making is quite even, and mechanical strength improves.

Be also noted that, this concrete technical scheme that adopts, promptly, the aequum of described metal is formed by lower mode cavity basically, particularly form by the recess of bottom, can arrange several different and required amount liquid metals of measuring die cavity very accurately always around the same input channel, but the described required amount liquid metal that measures in each die cavity may and inequality.

Should note, adopt above-mentioned arrangement, the liquid metal of aequum is introduced each die cavity, can take any special operation, and just make liquid metal overflow simply from described input pipe, make described liquid metal reach the predefined limit that described height sensor 30 can directly determine, perhaps reach above-mentioned limit according to the time that described liquid metal is exerted pressure, described pressure rises liquid metal and enters each recess.

Can find out significantly from top explanation, the present invention has reached predetermined catalogue and every specific purposes, particularly emphasize the actual formation of described plunger liquid flow-control element, close described mouthful, be connected with described liquid metal input pipe, avoided the formation of casting nozzle, also the liquid metal in solidifying has been produced pressure, this helps product to obtain high-caliber architectural characteristic and mechanical property.

Therefore, it is contemplated that the present invention can have many changes and modification, all these changes and modification are all within the scope of the appended claims.

All concrete elements can replace with the suitable element of other technical performance.

In fact, the raw material of use with and shape and size can decide as requested.

The application require priority be disclosures in Italian patent application M12002A000223 number, its content is in conjunction with as a reference.

Claims

1. make aluminium for one kind, aluminium alloy, the equipment of light-alloy or the like goods, this equipment comprises a pressing plate (1), counterdie (2) on the pressing plate (1), at least one patrix (3), the liquid metal input pipe (10) that is connected with smelting furnace (11), described liquid metal input pipe (10) leads to from below in the described counterdie (2), it is characterized in that described counterdie (2) is provided with at least one lower mode cavity (20), described at least one lower mode cavity has the recess of the liquid metal of introducing aequum, plunger (8) is connected with described patrix (3), described plunger (8) is suitable for motion and the formation upper cavity (25) of work with respect to described patrix (3), described upper cavity and described at least one lower mode cavity (20) coupling are so that the shape of decision foundry goods (21), described at least one patrix (3) can be near arriving above the described counterdie (2), described plunger (8) is closed described shape, play the element of control import (24) flow, described import (24) is connected with described input pipe (10).

2. according to the equipment of claim 1, it is characterized by described equipment and be included in a plurality of lower mode cavities (20) that are connected with described liquid metal input pipe (10) separately on the described counterdie (2).

3. according to the equipment of one of top claim, it is characterized by the liquid metal that also comprises in the described input pipe of control (10) and rise to and be higher than the height sensor (30) of described connector (24) height with the overflow of control liquid metal.

4. according to one in the top claim or several equipment, it is characterized by described liquid metal expense is to form by the overflow with respect to described connector (24).

5. according to one in the top claim or several equipment, the height that it is characterized by the interior liquid metal of described liquid metal input pipe (10) is with setting-up time and sets the interior force value control of described smelting furnace.

6. according to one in the top claim or several equipment, it is characterized by described plunger (8) near to the corresponding lower mode cavity (20) of described counterdie (2), being suitable for the liquid metal of introducing in the described recess is exerted pressure.

7. according to one in the top claim or several equipment, it is characterized by the liquid metal that described each lower mode cavity (20) in the described counterdie (2) is suitable for institute's expense of obtaining having nothing in common with each other.