CN104439146A

CN104439146A - Casting device used for chilled cast iron camshaft and with liquid iron entering from two ends

Info

Publication number: CN104439146A
Application number: CN201410696124.8A
Authority: CN
Inventors: 韦延霖; 利洁; 曾小明; 唐水平
Original assignee: LIUZHOU RUIMING WEILUO POWER MACHINERY Co Ltd
Current assignee: LIUZHOU RUIMING WEILUO POWER MACHINERY Co Ltd
Priority date: 2014-11-26
Filing date: 2014-11-26
Publication date: 2015-03-25
Anticipated expiration: 2034-11-26
Also published as: CN104439146B

Abstract

The invention discloses a casting device used for a chilled cast iron camshaft and with liquid iron entering from the two ends. The casting device comprises an upper half mold and a lower half mold. A sprue gate is formed in the center of the upper half mold and is communicated with a sprue. Upper transverse sprues are formed in the two sides of the sprue gate of the upper half mold. A first lower transverse sprue and a second lower transverse sprue are formed in the two sides of the sprue of the lower half mold. The first lower transverse sprue is communicated with the sprue, and the second lower transverse sprue is not communicated with the first lower transverse sprue. Dead heads are arranged on the left side and the right side of a bottom plate in a bilateral symmetry mode and communicated with the second lower transverse sprue. The dead head on one side is communicated with a first inner gate, and the dead head on the other side is communicated with a second inner gate. According to the casting device, it can be achieved that liquid iron enters from the two ends of the camshaft for mold filling, the mold filling time is shortened by half, the consistency of the cold shock effects of the two ends of the camshaft is good, and camshaft blanks of various specifications and types can be produced stably in a large scale; the upper transverse sprue and the lower transverse sprue are provided with overlapping parts, the mold filling speed of the liquid iron is slowed down, the effects of slag stopping and sand collecting are achieved, and slag eyes and sand cut waste products are reduced.

Description

A kind of Chilled Cast Iron Camshaft apparatus for pouring from two ends water inlet

Technical field

The present invention relates to camshaft and manufacture field, relate in particular to a kind of Chilled Cast Iron Camshaft apparatus for pouring from two ends water inlet.

Background technology

Existing Chilled Camshaft running gate system normally adopts the running gate system from the water inlet of camshaft one end, this kind of running gate system is widely used in the camshaft model that on same axle, each cam thickness is the same, can realize the chill degree of depth that each cam formed consistent, but the running gate system of one end water inlet cannot the camshaft of the model of all cam variable thickness samples on steady production same camshaft.

If each cam variable thickness sample on camshaft, the cold shock speed of the cam that then thickness is thicker can be slow, and all molten iron filling type can be caused all to flow through the cam of close this end of cast gate from one end water inlet, make the temperature of this place's chill higher, cold shock effect reduces greatly, cause chill depth ratio more shallow, all cannot meet the technical requirement of client, cause bulk scrapping.

In addition, the running gate system shaping speed of one end water inlet is comparatively slow, makes the chill temperature contrast at camshaft two ends obvious, cannot ensure the uniformity of cold shock effect, thus have impact on the quality of product.

Summary of the invention

The object of the invention is to the shortcoming and defect for above-mentioned prior art, a kind of Chilled Cast Iron Camshaft apparatus for pouring from two ends water inlet is provided, the present invention can realize a kind of running gate system simultaneously can intake from camshaft two ends, molten iron filling time is made to shorten half, make the chill temperature at camshaft two ends close simultaneously, guarantee the uniformity of cold shock effect, avoid occurring that batch is scrapped.

For achieving the above object, present invention employs following technical scheme:

A kind of Chilled Cast Iron Camshaft apparatus for pouring from two ends water inlet, comprise half mould and lower half mould, described upper half mould and lower half mould include base plate, there are cast gate in upper half mould central authorities, described cast gate is communicated with sprue, upper half mould cast gate both sides are provided with cross gate, and lower half mould sprue both sides are provided with first time cross gate and second time cross gate;

Described first time cross gate is communicated with sprue, and described second time cross gate is not communicated with first time cross gate;

Rising head is symmetrical set in the base plate left and right sides, is communicated with second time cross gate; One side riser is communicated with the first ingate, and opposite side rising head is communicated with the second ingate, and camshaft die cavity between described first ingate and described second ingate, and is communicated with described second ingate with described first ingate;

Clinch is had in the middle of first time cross gate and upper cross gate.

Preferably, base plate is provided with mistake proofing pin.

Preferably, base plate is provided with push rod.

Preferably, the cross section of the first ingate is less than the cross section of the camshaft die cavity be connected with described first ingate; The cross section of described second ingate is less than the cross section of the camshaft die cavity be connected with described second ingate.

Preferably, apparatus for pouring is provided with two camshaft die cavities.

From a Chilled Cast Iron Camshaft pouring procedure for two ends water inlet, described method uses the Chilled Cast Iron Camshaft apparatus for pouring from two ends water inlet according to claim 1, comprising:

S1, inject molten iron from the cast gate of running gate system;

S2, molten iron flow into first time cross gate by sprue, and shunt to two ends;

S3, first time cross gate are full of rear molten iron and will overflow to upper cross gate;

S4, molten iron are after upper cross gate, and fall back second time cross gate;

S5, molten iron flow through the rising head at two ends, enter the first ingate and second ingate at two ends;

S6, molten iron are by starting after the first ingate and the second ingate to fill type to camshaft die cavity.

Compared with prior art, the invention has the beneficial effects as follows:

The invention provides a kind of Chilled Cast Iron Camshaft apparatus for pouring from two ends water inlet, the water inlet of camshaft two ends can be realized and fill type, filling time shortens half, and cams at two ends axle cold shock same effect is better, and the cam shaft blank of Absorbable organic halogens, batch production all size model is produced; Moreover upper and lower type cross gate devises overlap, in casting process, molten iron filling velocity is slowed down, and plays pushing off the slag and the effect of collection sand, can reduce product and occur cinder hole, sand washing waste product.

Accompanying drawing explanation

In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below.

Fig. 1 is half mould structural representation from the Chilled Cast Iron Camshaft apparatus for pouring of two ends water inlet;

Fig. 2 is half mould schematic diagram from the Chilled Cast Iron Camshaft apparatus for pouring of two ends water inlet.

Wherein, 1-base plate; 2-mistake proofing pin; 3-the second ingate; 4-cast gate; 5-the first ingate; 6-upper cross gate; 7-sprue; 8-the first time cross gate; 9-rising head; 10-lower cross gate; 11-push rod; 12-camshaft die cavity.

Detailed description of the invention

For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, the present invention is described in further detail.

Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.

As shown in Figure 1, 2, a kind of Chilled Cast Iron Camshaft apparatus for pouring from two ends water inlet, comprise half mould and lower half mould, described upper half mould and lower half mould include base plate 1, there are cast gate 4 in upper half mould central authorities, described cast gate 4 is communicated with sprue 7, and upper half mould cast gate 4 both sides are provided with cross gate 6, and lower half mould sprue 7 both sides are provided with first time cross gate 8 and second time cross gate 10;

Described first time cross gate 8 is communicated with sprue 7, and described second time cross gate 10 is not communicated with first time cross gate 8;

Rising head 9 is symmetrical set in the base plate left and right sides, is communicated with second time cross gate 10; One side riser 9 is communicated with the first ingate 5, and opposite side rising head 9 is communicated with the second ingate 3, and camshaft die cavity 12 between described first ingate 5 and described second ingate 3, and is communicated with described second ingate 3 with described first ingate 5;

First time cross gate 8 has clinch with upper cross gate 6 is middle.

Preferably, base plate 1 is provided with mistake proofing pin 2.

Preferably, base plate 1 is provided with push rod 11.

Preferably, the cross section of the first ingate 5 is less than the cross section of the camshaft die cavity 12 be connected with described first ingate 5; The cross section of described second ingate 3 is less than the cross section of the camshaft die cavity 12 be connected with described second ingate 3.

Preferably, apparatus for pouring is provided with two camshaft die cavities 12.

From a Chilled Cast Iron Camshaft pouring procedure for two ends water inlet, described method uses the above-mentioned Chilled Cast Iron Camshaft apparatus for pouring from two ends water inlet, comprising:

S1, inject molten iron from the cast gate 4 of running gate system;

S2, molten iron flow into first time cross gate 8 by sprue 7, and shunt to two ends;

S3, first time cross gate 8 are full of rear molten iron and will overflow to upper cross gate 6;

S4, molten iron are after upper cross gate 6, and fall back second time cross gate 10;

S5, molten iron flow through the rising head 9 at two ends, enter first ingate 5 and second ingate 3 at two ends;

S6, molten iron are by starting to fill type to camshaft die cavity 12 after the first ingate 5 and the second ingate 3.

Based on the embodiment in the present invention, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, and any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.

Claims

1. the Chilled Cast Iron Camshaft apparatus for pouring from two ends water inlet, comprise half mould and lower half mould, described upper half mould and lower half mould include base plate (1), it is characterized in that, there are cast gate (4) in upper half mould central authorities, described cast gate (4) is communicated with sprue (7), upper half mould cast gate (4) both sides are provided with cross gate (6), and lower half mould sprue (7) both sides are provided with first time cross gate (8) and second time cross gate (10);

Described first time cross gate (8) is communicated with sprue (7), and described second time cross gate (10) is not communicated with first time cross gate (8);

Rising head (9) is symmetrical set in the base plate left and right sides, is communicated with second time cross gate (10); One side riser (9) is communicated with the first ingate (5), opposite side rising head (9) is communicated with the second ingate (3), camshaft die cavity (12) is positioned between described first ingate (5) and described second ingate (3), and is communicated with described second ingate (3) with described first ingate (5);

First time cross gate (8) has clinch with upper cross gate (6) is middle.

2. a kind of Chilled Cast Iron Camshaft apparatus for pouring from two ends water inlet according to claim 1, is characterized in that, base plate (1) is provided with mistake proofing pin (2).

3. a kind of Chilled Cast Iron Camshaft apparatus for pouring from two ends water inlet according to claim 1 and 2, is characterized in that, base plate (1) is provided with push rod (11).

4. a kind of Chilled Cast Iron Camshaft apparatus for pouring from two ends water inlet according to claim 3, it is characterized in that, the cross section of the first ingate (5) is less than the cross section of the camshaft die cavity (12) be connected with described first ingate (5); The cross section of described second ingate (3) is less than the cross section of the camshaft die cavity (12) be connected with described second ingate (3).

5. a kind of Chilled Cast Iron Camshaft apparatus for pouring from two ends water inlet according to claim 4, it is characterized in that, apparatus for pouring is provided with two camshaft die cavities (12).

6., from a Chilled Cast Iron Camshaft pouring procedure for two ends water inlet, described method uses the Chilled Cast Iron Camshaft apparatus for pouring from two ends water inlet according to claim 1, comprising:

S1, inject molten iron from the cast gate (4) of running gate system;

S2, molten iron flow into first time cross gate (8) by sprue (7), and shunt to two ends;

S3, first time cross gate (8) are full of rear molten iron and will overflow to upper cross gate (6);

S4, molten iron are after upper cross gate (6), and fall back second time cross gate (10);

S5, molten iron flow through the rising head (9) at two ends, enter first ingate (5) at two ends and the second ingate (3);

S6, molten iron are by starting to fill type to camshaft die cavity (12) after the first ingate (5) and the second ingate (3).