CN2455419Y

CN2455419Y - Dosed feeder for die casting apparatus

Info

Publication number: CN2455419Y
Application number: CN 00257634
Authority: CN
Inventors: 李俊贤; 古云旺
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-10-30
Filing date: 2000-10-30
Publication date: 2001-10-24
Anticipated expiration: 2010-10-30

Abstract

The utility model relates to a quantitative feeder for a die casting apparatus, which is composed of a storage tank 11, conduits 12, 18 and 20, a suction pump 16, a quantitative chamber 17, a first control valve 14 and a second control valve 19, a blanking tube 21, etc. The liquid level in the quantitative container is sensed by a quantitative sensing stick, so as to control a liquid capacity of feeding. The closing and opening of the suction pump, the first control valve, and the second control valve causes liquid material to enter a processing program through the conduits and the blanking tube, and ensures that the liquid material is fed quantitatively and stably. The utility model has the advantages that work efficiency and product quality can be raised, and manufacturing cost is reduced.

Description

A kind of batch plant of die casting machine

The utility model relates to mechanical, particularly a kind of batch plant of die casting machine.

Metal machine-shaping commonly used, its quantitative feed is all reached with one control valve, its structure is very simple, have the quantitative feed amount only error is arranged, and to as processing such as die casting machine operation, wherein the magnesium material is subject to the external environment influence, makes the magnesium material easily oxidized, as shown in Figure 1, be improved magnesium material feed mechanism, its feed pipe and control valve are because of being in for a long time in the blast furnace, and qualified element material obtains difficult, the inventor shifts out these valves outside the stove then, make the control valve must be not high temperature resistant for a long time, use maintenance cost thereby reduce, yet feeding is inaccurate is again a shortcoming greatly, has a strong impact on the quality and the qualification rate of product.

The purpose of this utility model is exactly the inaccurate shortcoming of feeding of depositing in the die-casting process operation at above-mentioned die casting machine, and a kind of batch plant of die casting machine is provided, and can increase work efficiency, product quality, and reduce manufacturing cost.

The technical solution of the utility model:

According to the purpose of this utility model, a kind of batch plant of die casting machine is provided, its structure mainly includes the number one by-pass valve control, dosing container, quantitative sensing bar and No. second element such as control valve, wherein control the major part of dosing container, be to utilize the quantitative sensing bar and the control valve of bleeding, when beginning to bleed to make, the control pump of bleeding is the negative pressure shape in the groove, and the number one by-pass valve control is opened, No. second by-pass valve control is closed, liquid (as the magnesium material) in the stock chest promptly enters dosing container via carrier pipe, the liquid material that is inhaled into reaches and reaches when giving take the altitude in the dosing container, quantitative sensing bar can be sensed reached the height that gives constant volume, aspiration pump on the dosing container stops to bleed, the number one by-pass valve control is closed, behind No. second valve opening, aspiration pump begins inflation, increase the pressure in the quantitative slot, quicken liquid and pass through No. second valve by carrier pipe, deliver to processing stations by feed opening, thisly utilize dual valve control charging, can make quantitative feed in stable such as liquid magnesium alloy raw material, can increase work efficiency, product quality and reduction manufacturing cost.

Accompanying drawings structure of the present utility model and embodiment:

Fig. 1 is common die casting machine feeding device schematic diagram.

The schematic diagram when waiting material when Fig. 2 implements for the utility model two road by-pass valve controls.

Fig. 3 is the schematic diagrames when blanking of the utility model two road by-pass valve controls when implementing.

The schematic diagram when waiting material when Fig. 4 implements with spherical control valve for the utility model.

The schematic diagram when blanking of Fig. 5 when to be the utility model with spherical control valve implement.

1 for the globe valve switch, 2 for suction inlet, 3 for ball valve, 4 for path, 11 for stock chest, 12 for carrier pipe, 13 for charging aperture, 14 for the number one by-pass valve control, 15 for quantitative sensing bar, 16 for aspiration pump, 17 for dosing container, 18 for carrier pipe, 19 be No. second by-pass valve control, 20 for carrier pipe, 21 for tremie pipe, M be the liquid material.

Shown in accompanying drawing 2 and accompanying drawing 3, the utility model mainly includes quantitatively element such as rod 15 and first and second number control valve 14,19 of stock chest 11, carrier pipe 12, aspiration pump 16, dosing container 17, sensing, contain wherein that carrier pipe 12 is connected between liquid stock chest 11 and the number one by-pass valve control 14, in dosing container 17, be provided with aspiration pump 16 and quantitative sensing bar 15, number one control valve 14 connects airtight with carrier pipe 20 mutually with dosing container 17, dosing container 17 connects airtight with No. second by-pass valve control mutually with carrier pipe 18 again, and liquid material supplies to give mould by tremie pipe 21.

Shown in accompanying drawing 2 and accompanying drawing 3, by stock chest 11,

carrier pipe

12,18,20, aspiration pump 16, dosing container 17, first, No. two by-pass valve controls 14,19, tremie pipe 21, Deng cooperatively interact, and first appropriateness in the dosing container 17 is pumped into negative pressure by aspiration pump 16, establish height (promptly quantitative) to reach giving of quantitative sensing bar 15, number one by-pass valve control 14 unlatchings already this moment, No. second by-pass valve control 19 is then for closing, by the negative-pressure sucking in the dosing container 17, make the liquid in the stock chest 11 the liquid material is drawn onto in the dosing container 17 continuously by stock chest 11 by the suction of negative pressure, and the quantitative sensing bar 15 in the dosing container 17 can be responded to the liquid height in the dosing container 17, when the liquid height is established when height to giving, number one by-pass valve control 14 is closed, No. second by-pass valve control 19 is opened, 17 inflations of 16 pairs of dosing containers of aspiration pump, liquid material in the acceleration dosing container 17 is by carrier pipe 18, No. second by-pass valve control 19, the die casting operation is carried out in tremie pipe 21 blankings; Owing to, make feeding accurate by cooperatively interacting of aspiration pump 16 and quantitative sensing bar 15; Because number one by-pass valve control 14, dosing container 17, aspiration pump 16, quantitative sensing bar 15 and No. second by-pass valve control 19 are all external at stock chest 11 and die casting machine, therefore maintain, keep in repair all very convenient.

Shown in accompanying drawing 4 and accompanying drawing 5, another embodiment of the present utility model; After aspiration pump 16 begins to bleed, dosing container 17 is the negative pressure shape, carry on the ball valve 3 in the ball type switch 1, suction inlet 2 is opened, the liquid material is inhaled into through carrier pipe 12 by suction inlet 2 and enters dosing container, wait liquid in the dosing container 17 up to giving fixed height, quantitatively sensing bar 15 induces signal, make aspiration pump 16 be transformed into inflation by bleeding,, quicken these liquid materials flows to carrier pipe 18 to the pressurization of the liquid material in the dosing container 17, No. second by-pass valve control 19 through opening already flow to tremie pipe 21, carry out next processing procedure, this moment, ball type switch then was closed condition, as shown in Figure 5.

Claims

1, a kind of batch plant of die casting machine, it is by stock chest (11), carrier pipe (12), (18), (20), aspiration pump (16), dosing container (17), first, No. two by-pass valve controls (14), (19), tremie pipe formations such as (21), it is characterized in that being provided with in the stock chest (11) carrier pipe (12), and link to each other with charging aperture (13) and number one by-pass valve control (14), connect airtight mutually with dosing container (17) through carrier pipe (20) in its lower end, in dosing container (17), be provided with quantitative sensing bar (15), aspiration pump (16), connect airtight with No. second by-pass valve control (19) mutually through carrier pipe (18) dosing container (17) lower end, connects tremie pipe (21) again.

2,, it is characterized in that said number one by-pass valve control can a globe valve switch places the end of carrier pipe in the stock chest according to the batch plant of the described a kind of die casting machine of claim 1.