CN101722289A

CN101722289A - Vacuum centrifugal casting machine

Info

Publication number: CN101722289A
Application number: CN200910208885A
Authority: CN
Inventors: 吴为国
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-11-01
Filing date: 2009-10-30
Publication date: 2010-06-09
Anticipated expiration: 2029-10-30
Also published as: CN101722289B

Abstract

The invention relates to a vacuum centrifugal casting machine which comprises a rotating shaft, an upper mould, a lower mould, a bottom plate, a sliding plate and an upper mould and lower mould hold-down mechanism and the like, wherein the sliding plate is driven to slide up and down by a lifting mechanism, and is provided with a funnel; a sealing cover is arranged outside the funnel and is internally provided with a container; the container is arranged above the funnel by a rotating handle which is connected with an oscillating cylinder; a movable shell is arranged under the sliding plate, and a fixed shell is positioned on the bottom plate; a sealing cavity is formed by the movable shell and the fixed shell; the sealing cavity (A) is connected with a vacuum energy storage tank by a pipeline, and is provided with a valve; the vacuum energy storage tank is connected with a vacuum pump; the sealing cavity (A) is internally provided with the rotating shaft which is provided with a centrifugal casting mould; the sliding plate leads the mould to rotate after the mould is compressed by the hold-down mechanism; melt liquid is arranged inside the container; after the sealing cover is closed, the valve is opened, a certain vacuum degree is instantaneously reached inside the sealing cavity (A), the container is rotated by the oscillating cylinder, and the melt liquid is poured into the rotating mould through the funnel and then enters into a die cavity under the action of centrifugal force; and molding is carried out in vacuum, so that the quality of castings can be improved.

Description

A kind of vacuum centrifugal casting machine

Technical field

The present invention relates to casting machine, particularly relate to a kind of vacuum centrifugal casting machine, belong to mechanical field.

Background technology

Casting machine is the indispensable equipment of machine industry.Existing casting method has: polytypes such as gravitational casting, compression casting, centrifugal casting, low pressure casting, various cast types all have different casting machines, Zhu Zao liquation is all cast in air and is solidified generally speaking, and causing has pore and loose in the foundry goods.

Summary of the invention

The objective of the invention is in order to overcome the defective of prior art, a kind of a kind of vacuum centrifugal casting machine of casting and solidifying under vacuum (negative pressure) normality is provided.

A kind of vacuum centrifugal casting machine, comprise rotating shaft, upper die and lower die, base plate, slide plate, upper and lower mould hold-down mechanism, slide plate is slided up and down by elevating mechanism, moving housing is housed under the slide plate, fixed shell is housed on the base plate, moving housing and fixed shell are formed seal chamber (A), seal chamber (A) connects the vacuum energy storage canister by pipeline, and valve is housed, the vacuum energy storage canister connects vavuum pump, and funnel is arranged on the slide plate, and funnel has seal cover outward, container is arranged in the seal cover, under vacuum (negative pressure) normality, liquation is poured in the mould of centrifugal casting.

A kind of vacuum centrifugal casting machine is during the casting small size part. and mould is made up of upper die and lower die, has two die cavities between the upper and lower mould at least, and slide plate promotes to collude during die sinking and mentions patrix by the roller compaction mold.

A kind of vacuum centrifugal casting machine, seal receptacle are contained on the slide plate, and container is in seal receptacle, and rotating shaft Feng Mihou stretches out seal receptacle, and seal cover is arranged on the seal receptacle.

A kind of vacuum centrifugal casting machine has funnel on the slide plate, stopper is arranged in the funnel, and stopper can slide up and down.

A kind of vacuum centrifugal casting machine is characterized in that container has insulation or heating function.

Outstanding compared to existing technology substantive distinguishing features and the obvious improvement of the present invention is:

Workpiece at the centrifugal normality lower charging type of vacuum (negative pressure), solidify, eliminate or reduce pore in the foundry goods, it is good to make workpiece fill type;

2. funnel is installed on the slide plate, makes reinforced convenient and safe;

3. automatic die sinking about the mould of centrifugal casting machine reduces labour intensity.

Description of drawings

Fig. 1 is the structural representation of centrifugal casting of the present invention;

Fig. 2 is the centrifugal casting structural representation of a plurality of die cavities of the present invention;

Fig. 3 is the centrifugal casting structural representation of the another kind of a plurality of die cavities of the present invention.

Among the figure: 1-vacuum energy storage canister; The 2-valve; The 3-exhaust tube; 4-moves housing; The 5-fixed shell; Charging aperture in the 8-; The 9-seal; The 10-container; The outer charge door of 11-; The 12-handler; The 13-base plate; The 14-slide plate; The 15-elevating mechanism; The 16-seal cover; The 17-cylinder; 18-holds mould; The 19-counterdie; The 20-patrix; The 21-roller; The 22-oscillating cylinder; The 23-funnel; 24-promotes and colludes; The 25-workpiece; The 26-rotating shaft; The 27-push rod; The 44-vavuum pump; The 47-stopper; The 50-rotating mechanism; 51 1 seal receptacles.

The specific embodiment

With specific embodiment the present invention is further described below:

As shown in Figure 1: a kind of vacuum centrifugal casting machine, comprise compositions such as rotating shaft 26, patrix 20, counterdie 19, base plate 13, slide plate 14, upper and lower mould hold-down mechanism, slide plate 14 is slided up and down by elevating mechanism, funnel 23 is arranged on the slide plate 14, seal cover 16 is arranged outside the funnel 23, container 10 is arranged in the seal cover 16, and container 10 is contained in funnel 23 tops by handler 12, and handler 12 connects oscillating cylinder 22; Slide plate is equipped with moving housing 4 for 14 times, and fixed shell 5 is housed on the base plate 12, and moving housing 4 and fixed shell 5 are formed seal chamber (A), and seal chamber (A) connects vacuum energy storage canister 1 by pipeline, and valve 2 is housed, and vacuum energy storage canister 1 connects vavuum pump 44.Rotating shaft 26 is arranged in the seal chamber A, the mould of centrifugal casting is housed in the rotating shaft 26, and mould is divided into patrix 20 and counterdie 19, and slide plate 14 makes mould compress the back rotation by thrust bearing, liquation is placed in the container 10, container 10 have the insulation or heating function, close seal cover 16 after, open valve 2, make the interior instantaneous certain vacuum that reaches of seal chamber (A), by oscillating cylinder 22 rotary containers 10, liquation pours in the mould of rotation through funnel 23, enters die cavity 7 under action of centrifugal force; Elevating mechanism 15 is up during die sinking, drives moving housing 4, and rotating shaft 26 useable electric moters or oil motor drive rotation.

As shown in Figure 2: seal receptacle 51 is arranged on the slide plate 14, and container 10 stretches out seal receptacle 51 after rotating shaft 26 envelopes are close in seal receptacle 51, seal cover 16 is arranged on the seal receptacle 51, and seal cover 16 is driven by cylinder 17.In the seal chamber (A) rotating shaft 26 is arranged, the mould of centrifugal casting is housed in the rotating shaft 26, and mould is divided into patrix 20 and counterdie 19, has two die cavities between the upper and lower mould at least, slide plate 14 makes mould compress the back rotation by thrust bearing or roller, liquation is poured container into, close seal cover 16 after, open valve 2, make the interior instantaneous certain vacuum that reaches of seal chamber (A), make in the mould of aluminium liquid in the container 10 by rotating mechanism, under action of centrifugal force, enter each die cavity 7 through pouring into rotation; Elevating mechanism 15 is up during die sinking, and the moving housing 4 of drive, lifting are colluded 24 and mentioned patrix 20.

As shown in Figure 3: a kind of vacuum centrifugal casting machine, funnel 23 is arranged on the slide plate 14, stopper 47 is arranged in the funnel 23, stopper 47 can slide up and down; The stopper 47 descending charging apertures of blocking funnel 23 are opened valve 2 during work, make the interior instantaneous certain vacuum that reaches of seal chamber (A), add liquation in funnel 23, and the up liquation of stopper is inhaled into each die cavity very soon.

The foregoing description is one of preferred embodiment of the present invention only, is not to limit protection scope of the present invention according to this, so: all equivalences of doing according to structure of the present invention, principle change, and all should be covered by within protection scope of the present invention.

Claims

1. vacuum centrifugal casting machine, comprise rotating shaft, upper die and lower die, base plate, slide plate, upper and lower mould hold-down mechanism, slide plate is slided up and down by elevating mechanism, moving housing is housed under the slide plate, fixed shell is housed on the base plate, moving housing and fixed shell are formed seal chamber (A), seal chamber (A) connects the vacuum energy storage canister by pipeline, and valve is housed, the vacuum energy storage canister connects vavuum pump, it is characterized in that funnel is arranged on the slide plate, and funnel has seal cover outward, container is arranged in the seal cover, under vacuum (negative pressure) normality, liquation is poured in the mould of centrifugal casting.

2. a kind of vacuum centrifugal casting machine as claimed in claim 1, when it is characterized in that the casting small size part, mould is made up of upper die and lower die, has two die cavities between the upper and lower mould at least, and slide plate promotes to collude during die sinking and mentions patrix by the roller compaction mold.

3. a kind of vacuum centrifugal casting machine as claimed in claim 1 or 2 is characterized in that seal receptacle is contained on the slide plate, and container is in seal receptacle, and rotating shaft Feng Mihou stretches out seal receptacle, and seal cover is arranged on the seal receptacle.

4. as claim 1 or 2 or 3 described a kind of vacuum centrifugal casting machines, it is characterized in that funnel is arranged on the slide plate, stopper is arranged in the funnel, stopper can slide up and down.

5. as claim 1 or 2 or 3 described a kind of vacuum centrifugal casting machines, it is characterized in that container has insulation or heating function.