CN204770468U

CN204770468U - Fan casting mould

Info

Publication number: CN204770468U
Application number: CN201520395125.9U
Authority: CN
Inventors: 边铁桥; 陈国华; 柏立敬
Original assignee: Hebei Ouruite Aluminium Alloy Co Ltd
Current assignee: Hebei Ouruite Aluminium Alloy Co Ltd
Priority date: 2015-06-10
Filing date: 2015-06-10
Publication date: 2015-11-18
Anticipated expiration: 2025-06-10

Abstract

The utility model discloses a fan casting mould, mould and cast iron lower mould on the matched with sand mould, set up in the mould correspondingly with the fan foundry goods on the sand mould and by the main cavity room of mutual intercommunication, the top -surface camber cavity, the lower surface camber cavity, the casting chamber that muscle board cavity room constitutes, the outside that is located the casting chamber on the sand mould in the mould set up the upper ring gate that is linked together by the sprue and lower floor's ring gate and on the sand mould middle part of mould set up circular rising head, the upper strata ring gate is linked together through last cross gate with the top -surface camber cavity, lower floor's ring gate lower surface camber cavity is linked together through lower cross gate, the middle part of cast iron lower mould sets up the toper arch corresponding with fan foundry goods lower surface camber, the utility model discloses having mould structure reasonable in design, easily making and assemble, can avoid the fan foundry goods to produce local thermal center in casting process, the foundry goods can carry out directional solidification well, and the gusset root can not produce the draw.

Description

A kind of fan cast casting mould

Technical field

The utility model relates to casting field, especially a kind of mould for casting fan foundry goods.

Background technology

Symmetrical structure centered by fan, fan foundry goods is formed by upper and lower two-layer surface composition, adopting gusset to connect between curved surface, arrange blade in the position corresponding with gusset, is wheel hub between blade and gusset, for this kind of fan foundry goods, the sand casting that usual employing is traditional, this mode is unfavorable for the consecutive solidification of this foundry goods, and produces draw at the gusset root of gusset and lower floor's curved surface joint, cause foundry goods to scrap, be difficult to address this problem in traditional casting process.

Through analysing in depth, find that the problems referred to above are mainly caused by the reason of following several respects: first is because fan blade root is greatly thick, and root of blade connects with wheel hub and gusset, cause local thermal center, when molten metal from here filling blade time, also can be long because of blade, it is overheated herein that loading time length causes.Second is that fan gusset is positioned at wheel hub side, gusset and wheel hub intersection, causes local greatly thick, there is thermal center.

Due in fan turns process, root of blade, wheel hub, gusset, with stressed all comparatively large, need to ensure dense structure.Therefore muscle sheet root urgently to be resolved hurrily easily produces the problem of draw.

Utility model content

The utility model technical issues that need to address are to provide a kind of fan cast casting mould, and can avoid fan foundry goods in casting process, produce local thermal center, solving foundry goods can not consecutive solidification, and gusset root easily produces the problem of draw.

For solving the problems of the technologies described above, the technical scheme that the utility model adopts is:

A kind of fan cast casting mould, comprise the sand mold patrix and cast iron counterdie that match, arrange in described sand mold patrix corresponding to fan foundry goods and by the main chamber be interconnected, top-surface camber chamber, lower surface camber chamber, the mold cavity that gusset chamber is formed, the upper strata ring gate that the arranged outside being positioned at mold cavity in described sand mold patrix is connected by sprue and lower floor's ring gate also arrange circular rising head at the middle part of sand mold patrix, described upper strata ring gate is connected by upper cross gate with top-surface camber chamber, described lower floor ring gate is connected by lower cross gate with lower surface camber chamber, the middle part of described cast iron counterdie arranges the tapered protrusion corresponding with fan foundry goods lower surface camber.

The further improvement of technical solutions of the utility model is: described sand mold patrix comprises the upper sand mold and lower sand mold that match, and the die joint of described upper sand mold and lower sand mold and the top at top-surface camber chamber edge flush.

The further improvement of technical solutions of the utility model is: described upper strata ring gate is positioned at sand mold and is connected with die joint, and described lower floor ring gate is positioned at lower sand mold and is connected with the upper surface of cast iron counterdie.

The further improvement of technical solutions of the utility model is: the quantity of described gusset chamber is 6 ~ 16 and is evenly distributed between top-surface camber chamber and lower surface camber chamber, and quantity and the position of described upper cross gate and lower cross gate and gusset chamber are corresponding.

The further improvement of technical solutions of the utility model is: the quantity of described sprue is 2 ~ 6 and is evenly distributed on the inner side at sand mold patrix edge.

Owing to have employed technique scheme, the technological progress that the utility model obtains is:

A kind of fan cast casting mould of the present utility model, has mould structure design reasonable, is easy to manufacture and assemble, and can avoid fan foundry goods in casting process, produce local thermal center, foundry goods can carry out consecutive solidification well, and gusset root can not produce draw.

This patent overturns traditional sand mould casting method, and mould structure have employed the composite casting mode of sand mold and metal mold, makes foundry goods establish good consecutive solidification condition.And traditional individual layer ring gate is changed to double-deck ring gate, efficiently solves gusset and lower surface camber joint in the middle of foundry goods and easily produce the problem of draw.Through adopting the casting forming of this die casting good, the microcosmic crystalline phase dense structure of foundry goods, casting yield is high, and quality is good.

Accompanying drawing explanation

Fig. 1 is sectional view of the present utility model;

Fig. 2 is top view of the present utility model;

Wherein, 1, sand mold patrix, 1-1, rising head, 1-2, upper sand mold, 1-3, lower sand mold, 2, cast iron counterdie, 2-1, tapered protrusion, 3, mold cavity, 3-1, main chamber, 3-2, top-surface camber chamber, 3-3, lower surface camber chamber, 3-4, gusset chamber, 4, sprue, 5, upper strata ring gate, 5-1, upper cross gate, 6, lower floor's ring gate, 6-1, lower cross gate.

Detailed description of the invention

Below in conjunction with accompanying drawing, the utility model is described in further details:

A kind of fan cast casting mould of the present utility model, its structural representation as shown in Figure 1 and Figure 2, comprise the sand mold patrix 1 and cast iron counterdie 2 that match, in sand mold patrix 1, the mold cavity 3 corresponding to fan foundry goods is set, mold cavity 3 comprises the main chamber 3-1, top-surface camber chamber 3-2, lower surface camber chamber 3-3, the gusset chamber 3-4 that are interconnected, and these four chambers together constitute mold cavity 3.

The middle part of sand mold patrix 1 of the present utility model arranges circular rising head 1-1, arranged outside upper strata ring gate 5 and lower floor's ring gate 6 of mold cavity 3 is positioned in sand mold patrix 1, upper strata ring gate 5 is connected by sprue 4 with lower floor ring gate 6, the quantity of sprue 4 is 2 ~ 6, and the cast gate of sprue 4 is evenly distributed on the inner side at sand mold patrix 1 edge.

Sand mold patrix 1 of the present utility model adopts split-type design, comprises the upper sand mold 1-2 and lower sand mold 1-3 that match, and the die joint of upper sand mold 2-2 and lower sand mold 2-3 and the top at top-surface camber chamber 3-2 edge flush.Upper strata ring gate 5 is positioned at sand mold 2-2 and is connected with die joint, and lower floor's ring gate 6 is positioned at lower sand mold 2-3 and is connected with the upper surface of cast iron counterdie 2.Upper strata ring gate 5 is connected by upper cross gate 5-1 with top-surface camber chamber 3-2, and lower floor's ring gate 6 is connected by lower cross gate 6-1 with lower surface camber chamber 3-3.

The quantity of gusset chamber 3-4 of the present utility model is 6 ~ 16 and is evenly distributed between top-surface camber chamber 3-2 and lower surface camber chamber 3-3, and quantity and the position of upper cross gate 5-1 and lower cross gate 6-1 and gusset chamber 3-4 are corresponding.

The middle part of cast iron counterdie 2 of the present utility model arranges the tapered protrusion 2-1 corresponding with fan foundry goods lower surface camber, and tapered protrusion 2-1 is stretched in rising head 1-1.

Claims

1. a fan cast casting mould, it is characterized in that: comprise the sand mold patrix (1) and cast iron counterdie (2) that match, arrange in described sand mold patrix (1) corresponding to fan foundry goods and by the main chamber be interconnected (3-1), top-surface camber chamber (3-2), lower surface camber chamber (3-3), the mold cavity (3) that gusset chamber (3-4) is formed, the upper strata ring gate (5) that the arranged outside being positioned at mold cavity (3) in described sand mold patrix (1) is connected by sprue (4) and lower floor's ring gate (6) also arrange circular rising head (1-1) at the middle part of sand mold patrix (1), described upper strata ring gate (5) is connected by upper cross gate (5-1) with top-surface camber chamber (3-2), described lower floor ring gate (6) is connected by lower cross gate (6-1) with lower surface camber chamber (3-3), the middle part of described cast iron counterdie (2) arranges the tapered protrusion (2-1) corresponding with fan foundry goods lower surface camber.

2. a kind of fan cast casting mould according to claim 1, it is characterized in that: described sand mold patrix (1) comprises the upper sand mold (1-2) and lower sand mold (1-3) that match, the die joint of described upper sand mold (2-2) and lower sand mold (2-3) and the top at top-surface camber chamber (3-2) edge flush.

3. a kind of fan cast casting mould according to claim 2, it is characterized in that: described upper strata ring gate (5) is positioned at sand mold (2-2) and is connected with die joint, described lower floor ring gate (6) is positioned at lower sand mold (2-3) and is connected with the upper surface of cast iron counterdie (2).

4. a kind of fan cast casting mould according to claim 1, it is characterized in that: the quantity of described gusset chamber (3-4) is 6 ~ 16 and is evenly distributed between top-surface camber chamber (3-2) and lower surface camber chamber (3-3), quantity and the position of described upper cross gate (5-1) and lower cross gate (6-1) and gusset chamber (3-4) are corresponding.

5. a kind of fan cast casting mould according to any one of claim 1 ~ 4, is characterized in that: the quantity of described sprue (4) is 2 ~ 6 and is evenly distributed on the inner side at sand mold patrix (1) edge.