CN216176516U - Mould with oxygenating device - Google Patents

Abstract

The utility model relates to a mould with an oxygenation device, which comprises a fixed mould, a movable mould and a material injection pipeline, wherein the movable mould can be matched with the fixed mould to form a cavity, the material injection pipeline is arranged at the side part of the fixed mould and is communicated with the cavity, and the material injection pipeline is provided with a first oxygenation port for oxygenating the cavity, and is characterized in that: the fixed die further comprises a second oxygenation port which is arranged at the top of the fixed die and is used for oxygenating the cavity, and an oxygen supply mechanism which is used for supplying oxygen to the first oxygenation port and the second oxygenation port, compared with the prior art, the fixed die has the advantages that: make oxygen can directly get into the die cavity through set up the second on the cover half and oxygenate the mouth to can discharge the rest gas in the die cavity more fast, in addition, remain the first mouth of oxygenating on the notes material pipeline, the efficiency of oxygenating has been improved greatly to the joint oxygenation of two oxygenation mouths.

Description

Mould with oxygenating device

Technical Field

The utility model relates to the technical field of die-casting processing, in particular to a die with an oxygenating device.

Background

Die casting, namely the abbreviation of "pressure casting", which is essentially a method for filling a cavity of a die-casting die with liquid or semi-liquid metal at a high speed under the action of high pressure, and forming and solidifying under pressure to obtain a casting; in the existing alloy die-casting process, because air exists in the die-casting machine, after molten metal is poured, oxygen in the air can react with the molten metal ejected by pressure to form metal oxide, and other unreacted gases can be mixed into the molten metal under the action of pressure and form air holes in a casting after the molten metal is solidified, so that a die-cast product is unqualified; therefore, the Chinese utility model 'an oxygenating device of die casting machine' with patent number ZL201620013091.7 discloses an oxygenating device, which comprises an oxygen cylinder, a telescopic cylinder, a nozzle cover and an oxygen nozzle, wherein an oxygen injection hole is formed in an injection pipeline of a die, the telescopic cylinder is fixed right above the oxygen injection hole and is vertically downward, the nozzle cover is fixed at one end of a telescopic rod of the telescopic cylinder, an arc-shaped groove is formed in the bottom of the nozzle cover, the oxygen nozzle is arranged in the groove, the position of the oxygen nozzle corresponds to the position of the oxygen injection hole in the injection pipeline, and the oxygen nozzle can be communicated with the oxygen cylinder through a hose from the inside of the oxygen injection hole; because the oxygenation mode of the device is to oxygenate the mould from the oxygen injection hole of the material injection pipeline, the rest gas in the mould can be discharged in a long time, and the efficiency is low; for this reason, further improvements to the prior art are needed.

Disclosure of Invention

The technical problem to be solved by the present invention is to provide a mold with an oxygen charging device, which can discharge the rest gas efficiently.

The technical scheme adopted by the utility model for solving the technical problems is as follows: the mold with the oxygenating device comprises:

fixing a mold;

the movable die can be matched with the fixed die to form a cavity; and

the material injection pipeline is arranged on the side part of the fixed die and communicated with the cavity, and a first oxygen charging port for charging oxygen into the cavity is arranged on the material injection pipeline, and the material injection pipeline is characterized in that: the fixed die further comprises a second oxygenation port arranged at the top of the fixed die and used for oxygenating the cavity and an oxygen supply mechanism used for supplying oxygen to the first oxygenation port and the second oxygenation port.

In order to be able to supply oxygen to the first and second oxygenation ports together, it is preferable that the oxygen supply mechanism comprises:

a first oxygen supply passage communicating with the first oxygen charging port;

a second oxygen supply passage communicated with the second oxygen charging port;

and the oxygen supply part is communicated with the first oxygen supply passage and the second oxygen supply passage and is used for supplying oxygen.

Although the oxygen supply part may directly supply oxygen to the first and second oxygen supply ports through the first and second oxygen supply passages, it is preferable that the first and second oxygen supply passages share one oxygen supply passage from the viewpoint of cost saving, and the oxygen supply mechanism further includes a third oxygen supply passage directly communicating with the air outlet of the oxygen supply part, and the third oxygen supply passage is respectively communicated with the first and second oxygen supply passages through a connector. The arrangement cost of the oxygen supply channel can be saved by arranging a section of common third oxygen supply channel, and the first oxygen supply channel, the second oxygen supply channel and the third oxygen supply channel are communicated by arranging the connecting piece, so that the oxygen provided by the oxygen supply part can be ensured to be smoothly output from the first oxygen charging port and the second oxygen charging port.

In order to realize the automatic operation of the oxygenation operation, it is preferable that the third oxygen supply passage is provided with an electromagnetic valve for controlling the output of oxygen to the first oxygen supply passage and the second oxygen supply passage.

In order to prevent moisture in the oxygen from entering the cavity, a drying agent for drying the oxygen is preferably provided on the third oxygen supply path between the solenoid valve and the oxygen supply portion.

Since the second oxygen charging port is a main oxygen charging port, in order to avoid a collision with the second oxygen charging port, it is preferable that a throttle valve for controlling an output flow rate of oxygen to the first oxygen charging port is provided in the first oxygen supply path. The throttle valve is arranged to control the air output of the first oxygen charging port, so that the oxygen charged by the first oxygen charging port does not conflict with the oxygen charged by the second oxygen charging port into the cavity, and the reduction of oxygen charging efficiency due to the mutual influence of the first oxygen charging port and the second oxygen charging port is avoided.

Preferably, the metal liquid in the material injection pipeline is pushed into a push rod of the cavity, correspondingly, an opening for inserting the push rod is formed in the end part, far away from the cavity, of the material injection pipeline along the axis, and a material injection port for injecting the metal liquid is formed in the material injection pipeline close to the opening. The push rod is arranged to push the residual metal liquid in the material injection pipeline into the cavity, so that materials are saved, and production cost is reduced.

Because the filling opening can be blocked when the push rod enters the filling pipeline, gas can not be discharged from the filling opening continuously, and preferably, an exhaust opening is formed between the first oxygenation opening and the filling opening in the filling pipeline. An exhaust port is formed between the first oxygen charging port and the injection port, so that when the injection port is blocked by the push rod, gas can be continuously discharged from the exhaust port, and the oxygen concentration in the cavity is higher.

Compared with the prior art, the utility model has the advantages that: the second oxygen charging port is arranged on the fixed die, so that oxygen can directly enter the cavity, and the rest gas in the cavity can be discharged more quickly; in addition, the first oxygenation port on the feeding pipeline is reserved, and the common oxygenation of the two oxygenation ports greatly improves the oxygenation efficiency.

Drawings

FIG. 1 is a schematic view showing the overall structure of a mold with an oxygenating apparatus according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of FIG. 1;

FIG. 3 is an enlarged view of FIG. 2 at A;

FIG. 4 is a cross-sectional view of the embodiment of the present invention in a state where the push rod is not in the material injection pipe;

fig. 5 is an enlarged view of fig. 4 at B.

Detailed Description

The utility model is described in further detail below with reference to the accompanying examples.

As shown in FIGS. 1 to 5, the preferred embodiment of the present invention is shown. The mold with the oxygenation device comprises a fixed mold 1, a movable mold 3, a material injection pipeline 4 and an oxygen supply mechanism 5; the movable die 3 can be matched with the fixed die 1 to form a cavity 2, and correspondingly, a second oxygen charging opening 11 for charging oxygen into the cavity 2 is formed in the top of the fixed die 1; the material injection pipeline 4 is arranged at the side part of the fixed die 1 and communicated with the die cavity 2, and a first oxygenation port 41 for oxygenating the die cavity 2 is arranged on the material injection pipeline 4; the oxygen supply mechanism 5 is configured to supply oxygen to the first oxygen charging port 41 and the second oxygen charging port 11, and includes a first oxygen supply passage 51 communicating with the first oxygen charging port 41, a second oxygen supply passage 52 communicating with the second oxygen charging port 11, and an oxygen supply portion 53 communicating with the first oxygen supply passage 51 and the second oxygen supply passage 52 and configured to supply oxygen.

Although the oxygen supply part 53 can directly supply oxygen to the first oxygen supply port 41 and the second oxygen supply port 11 through the first oxygen supply passage 51 and the second oxygen supply passage 52, from the viewpoint of cost saving, the present embodiment provides a single oxygen supply passage shared by the first oxygen supply passage 512 and the second oxygen supply passage 52, specifically, the oxygen supply mechanism 5 further includes a third oxygen supply passage 54 directly communicating with the air outlet of the oxygen supply part 53, and the third oxygen supply passage 54 is respectively communicated with the first oxygen supply passage 51 and the second oxygen supply passage 52 through a connector 55. The provision of the third oxygen supply passage 54 in one common segment can save the cost of the arrangement of the oxygen supply passages, and the provision of the connector 55 for connecting the first oxygen supply passage 51, the second oxygen supply passage 52 and the third oxygen supply passage 54 ensures that the oxygen supplied from the oxygen supply portion 53 can be smoothly outputted from the first oxygen charging port 41 and the second oxygen charging port 11.

In the present embodiment, an electromagnetic valve 6 for controlling the output of oxygen to the first oxygen supply passage 51 and the second oxygen supply passage 52 is provided in the third oxygen supply passage 54, a drying agent 7 for drying oxygen is provided in the third oxygen supply passage 54 between the electromagnetic valve 6 and the oxygen supply unit 53, and a throttle valve 8 for controlling the output flow rate of oxygen to the first oxygen charging port 41 is provided in the first oxygen supply passage 51. The electromagnetic valve 6 is arranged to realize automation of oxygenation operation, the drying agent 7 is used to dry oxygen to prevent moisture in the oxygen from entering the cavity 2, and the throttle valve 8 is arranged to control the air output of the first oxygenation port 414, so that the oxygen filled in the first oxygenation port 1 does not conflict with the oxygen filled in the cavity 2 in the second oxygenation port 11, and the mutual influence of the two is avoided to reduce oxygenation efficiency.

This embodiment still includes the push rod 9 that can push the molten metal in the notes material pipeline 4 in the die cavity 2, correspondingly, the tip that the die cavity 2 was kept away from to notes material pipeline 4 is provided with along the axis and supplies push rod 9 male opening 42, offers the sprue 43 that is used for pouring into the molten metal on the notes material pipeline 4 that is close to opening 42, and the gas vent 44 has been offered to notes material pipeline 4 and is located between first oxygenation mouth 41 and sprue 43. The push rod 9 is arranged to push the residual metal liquid in the material injection pipeline 4 into the cavity 2, so that the material is saved, and the production cost is reduced; in addition, because the injection port 43 is blocked when the push rod 9 enters the injection pipeline 4, the gas cannot be continuously discharged from the injection port 43, and the exhaust port 44 is arranged between the first oxygenation port 41 and the injection port 43, the gas can be continuously discharged from the exhaust port 44 when the push rod 9 blocks the injection port 43, so that the oxygen concentration in the cavity 2 is higher.

In summary, the use process of the mold with the oxygenation device is as follows: when the die-casting operation is to be performed,

A. the movable die 3 moves towards the fixed die 1 to form a cavity 2;

B. the oxygen supply part 53 is opened, the electromagnetic valve 6 is automatically opened, and the oxygen in the oxygen supply part 53 is dried by the drying agent 7 and then is input into the third oxygen supply passage 54;

C. the oxygen in the third oxygen supply passage 54 is supplied to the first oxygen supply passage 51 and the second oxygen supply passage 52 via the connection member 55;

D. oxygen in the second oxygen supply channel 52 directly enters the cavity 2 from the second oxygen charging port 11;

E. the throttle valve 8 is appropriately adjusted so that the flow rate of oxygen supplied from the first oxygen supply passage 51 to the first oxygenation port 41 is smaller than the flow rate of oxygen supplied from the second oxygen supply passage 52 to the second oxygenation port 11;

F. the rest gas in the cavity 2 flows out from the injection port 43 and the exhaust port 44;

G. when the oxygen concentration in the cavity 2 reaches a preset value, injecting materials from the injection port 43 to the material injection pipeline 4 through material injection equipment, and allowing the molten metal to flow into the cavity 2 through the material injection pipeline 4;

H. then, the push rod 9 is pushed slowly to block the injection port 43, the oxygen is injected at the moment, and the residual gas is discharged from the exhaust port 44 as much as possible;

I. finally, the push rod 9 pushes the residual molten metal in the material injection pipe 4 into the cavity 2, and the die-casting operation is completed after the molten metal is cooled.

Claims (8)

1. A mold with oxygenation apparatus comprising:

a fixed die (1);

the moving die (3) can be matched with the fixed die (1) to form a cavity (2); and

the material injection pipeline (4) is arranged on the side part of the fixed die (1) and communicated with the cavity (2), a first oxygenation port (41) for oxygenating the cavity (2) is arranged on the material injection pipeline (4), and the material injection device is characterized in that: the oxygen supplying device also comprises a second oxygen charging port (11) which is arranged at the top of the fixed die (1) and is used for charging oxygen into the die cavity (2) and an oxygen supplying mechanism (5) which is used for supplying oxygen to the first oxygen charging port (41) and the second oxygen charging port (11).

2. The mold with oxygenating apparatus as claimed in claim 1, wherein: the oxygen supply mechanism (5) includes:

a first oxygen supply passage (51) that communicates with the first oxygen charging port (41);

a second oxygen supply passage (52) that communicates with the second oxygen charging port (11);

and an oxygen supply part (53) which is communicated with the first oxygen supply passage (51) and the second oxygen supply passage (52) and is used for supplying oxygen.

3. The mold with oxygenating apparatus as claimed in claim 2, wherein: the oxygen supply mechanism (5) further comprises a third oxygen supply passage (54) directly communicated with the air outlet of the oxygen supply part (53), and the third oxygen supply passage (54) is respectively communicated with the first oxygen supply passage (51) and the second oxygen supply passage (52) through a connecting piece (55).

4. The mold with oxygenating apparatus as claimed in claim 3, wherein: the third oxygen supply passage (54) is provided with an electromagnetic valve (6) for controlling the output of oxygen to the first oxygen supply passage (51) and the second oxygen supply passage (52).

5. The mold with oxygenating apparatus as claimed in claim 4, wherein: a drying agent (7) for drying oxygen is provided on the third oxygen supply passage (54) between the electromagnetic valve (6) and the oxygen supply part (53).

6. The mold with oxygenating apparatus as claimed in claim 5, wherein: the first oxygen supply passage (51) is provided with a throttle valve (8) for controlling the output flow rate of oxygen to the first oxygen charging port (41).

7. The mold with oxygenating apparatus as claimed in any one of claims 1 to 6, wherein: still including can with the metal liquid in the notes material pipeline (4) pushes into push rod (9) of die cavity (2), correspondingly, notes material pipeline (4) are kept away from the tip of die cavity (2) is provided with the confession along the axis push rod (9) male opening (42), and is close to opening (42) it offers sprue (43) that are used for pouring into the metal liquid to annotate on material pipeline (4).

8. The mold with oxygenating apparatus as claimed in claim 7, wherein: and an exhaust port (44) is formed between the first oxygenation port (41) and the injection port (43) of the injection pipeline (4).

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