CN214290765U - Valve gap extrusion casting mould - Google Patents

Abstract

The utility model discloses a valve gap squeeze casting mould, including lower bolster and last mould core, the top of lower bolster is followed the lining and is down set gradually module and guide bar outward, and the outside of guide bar is provided with the uide bushing, the top of uide bushing is fixed with the cope match-plate pattern, the inside of lower module is fixed with down the cooling chamber, and the front end in cooling chamber is provided with down the cooling mouth down, the lower mould core is installed to the inner wall of lower module, the module is installed to the below of cope match-plate pattern, and the inside top of cope match-plate pattern is fixed with the cooling chamber. This valve gap squeeze casting mould compares with current ordinary casting mould, and large-scale runner size is greater than the foundry goods wall thickness for the injection head of die casting machine can get into the mould inner chamber, and aluminium alloy liquid fills the type from up down, and the work piece inside bubble that the shaping came out like this is less, and the cooperation runner is inserted and can be applyed the uniform pressure to aluminium alloy liquid, can extrude aluminium alloy liquid internal bubble, effectively improves the density and the quality of shaping foundry goods.

Description

Valve gap extrusion casting mould

Technical Field

The utility model relates to a valve gap production technical field specifically is a valve gap extrusion casting mould.

Background

The valve part is provided with a valve rod sealing element and is used for connecting or supporting an actuating mechanism, the valve cover and the valve body can be integrated or separated, the valve cover in the gate valve mainly plays a role in pressing and filling, and a casting mold is required to be used during production of the valve cover.

The existing casting mold is single in function and simple in structure, and does not have a structure for removing bubbles, and the small bubbles existing inside the workpiece after being formed are more, so that the density of the workpiece is reduced, the quality of the workpiece is influenced, the use requirements of people cannot be well met, and technical innovation is performed on the basis of the existing casting mold according to the condition.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a valve gap extrusion casting mould to propose general casting mould function singleness in solving above-mentioned background art, simple structure does not possess the structure of debubbling, and the inside micro bubble that exists behind the work piece shaping is more, leads to work piece density to reduce, can influence the quality of work piece like this, can not be fine satisfy people's user demand problem.

In order to achieve the above object, the utility model provides a following technical scheme: a valve cover extrusion casting die comprises a lower die plate and an upper die core, wherein a lower die block and a guide rod are sequentially arranged above the lower die plate from inside to outside, and the guide rod is externally provided with a guide sleeve, an upper template is fixed above the guide sleeve, a lower cooling cavity is fixed inside the lower module, the front end of the lower cooling cavity is provided with a lower cooling nozzle, the inner wall of the lower die block is provided with a lower die core, the lower part of the upper die plate is provided with an upper die block, an upper cooling cavity is fixed above the inner part of the upper module, an upper cooling nozzle is arranged at the front end of the upper cooling cavity, an air cavity is fixed below the inner part of the upper module, a nozzle is fixed below the air cavity, the front end of the air cavity is provided with an air connecting nozzle, the upper mold core is positioned on the inner wall of the upper mold block, a large sprue is fixed inside the upper template, and a sprue insert is arranged on the inner wall of the large sprue.

Preferably, an integrated structure is formed between the lower template and the guide rods, and the guide rods are symmetrically distributed along the central axis of the lower template.

Preferably, the outer surface of the guide rod is tightly attached to the inner surface of the guide sleeve, and the guide sleeve is symmetrically distributed along the central axis of the upper template.

Preferably, the lower cooling cavity is fixedly connected with the lower cooling nozzle, and the central axis of the lower cooling cavity coincides with the central axis of the lower module.

Preferably, an integrated structure is formed between the upper module and the upper cooling cavity, and the central axis of the upper module coincides with the central axis of the upper cooling cavity.

Preferably, the air cavity is fixedly connected with the nozzles, and the nozzles are equidistantly distributed along the horizontal direction of the air cavity.

Preferably, go up the mold core and be fixed connection between the last module, and the axis of going up the mold core coincides mutually with the axis of last module.

Preferably, an integrated structure is formed between the large gate and the upper template, and the large gate is movably connected with the gate insert.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses a lower cooling chamber, lower cooling nozzle, go up the cooling chamber, go up the cooling nozzle, the air cavity, the setting of nozzle and air receiving mouth, down cooling nozzle and last cooling nozzle insert the coolant liquid pipeline, the coolant liquid is carried to lower cooling chamber and the inside of last cooling chamber, lower cooling chamber and last cooling chamber are fixed respectively in the inside of lower module and last module, cool off this casting mould and work piece fast, access the air pump outside the air receiving mouth, gas is carried to the inside of air cavity through the air receiving mouth, a plurality of nozzles have been fixed to the air cavity below, gas is spouted through the nozzle, sweep this casting mould surface, realized this casting mould can clear up the sweeps that produces automatically in the use, avoid this casting mould to use because the sweeps more work piece quality is low;

2. the utility model discloses a setting that large-scale runner and runner were inserted, large-scale runner size are greater than the foundry goods wall thickness for the injection head of die casting machine can get into the mold cavity, and aluminium alloy liquid fills the type from up down, and the work piece inside bubble that the shaping came out like this is less, and the cooperation runner is inserted and to be exerted certain pressure to aluminium alloy liquid, can extrude aluminium alloy liquid internal cell, effectively improves the density and the quality of shaping foundry goods.

Drawings

FIG. 1 is a schematic view of a front view half-section structure of the present invention;

FIG. 2 is a schematic view of the structure of the present invention;

fig. 3 is a schematic view of the top view structure of the present invention.

In the figure: 1. a lower template; 2. a guide bar; 3. a guide sleeve; 4. mounting a template; 5. a lower module; 6. a lower cooling chamber; 7. a lower cooling nozzle; 8. a lower mold core; 9. an upper module; 10. an upper cooling chamber; 11. an upper cooling nozzle; 12. an air cavity; 13. a nozzle; 14. connecting an air faucet; 15. an upper mold core; 16. a large gate; 17. a gate insert.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a valve cover extrusion casting die comprises a lower die plate 1 and an upper die core 15, a lower die block 5 and a guide rod 2 are sequentially arranged above the lower die plate 1 from inside to outside, a guide sleeve 3 is arranged outside the guide rod 2, an integrated structure is formed between the lower die plate 1 and the guide rod 2, the guide rod 2 is symmetrically distributed along the central axis of the lower die plate 1, the outer surface of the guide rod 2 is tightly attached to the inner surface of the guide sleeve 3, the guide sleeve 3 is symmetrically distributed along the central axis of the upper die plate 4, the upper die plate 4 is fixed above the guide sleeve 3, a lower cooling cavity 6 is fixed inside the lower die block 5, a lower cooling nozzle 7 is arranged at the front end of the lower cooling cavity 6, the lower cooling cavity 6 is fixedly connected with the lower cooling nozzle 7, the lower cooling cavity 6 is coincided with the central axis of the lower die block 5, the lower die core 8 is installed on the inner wall of the lower die block 5, an upper die block 9 is installed below the upper die plate 4, an upper cooling cavity 10 is fixed above the inner part of the upper module 9, an integrated structure is formed between the upper module 9 and the upper cooling cavity 10, the central axis of the upper module 9 coincides with the central axis of the upper cooling cavity 10, an upper cooling nozzle 11 is arranged at the front end of the upper cooling cavity 10, an air cavity 12 is fixed below the inner part of the upper module 9, a nozzle 13 is fixed below the air cavity 12, the air cavity 12 is fixedly connected with the nozzle 13, the nozzle 13 is equidistantly distributed along the horizontal direction of the air cavity 12, a gas connecting nozzle 14 is arranged at the front end of the air cavity 12, the lower cooling cavity 6, the lower cooling nozzle 7, the upper cooling cavity 10, the upper cooling nozzle 11, the air cavity 12, the nozzle 13 and the gas connecting nozzle 14 are arranged, a cooling liquid pipeline is connected into the lower cooling nozzle 7 and the upper cooling nozzle 11, cooling liquid is conveyed into the lower cooling cavity 6 and the upper cooling cavity 10, the lower cooling cavity 6 and the upper cooling cavity 10 are respectively fixed inside the lower module 5 and the upper module 9, the casting mold and the workpiece are quickly cooled, an air pump is connected to the outside of the air connecting nozzle 14, air is conveyed into the air cavity 12 through the air connecting nozzle 14, a plurality of nozzles 13 are fixed below the air cavity 12, the air is sprayed out through the nozzles 13, and the surface of the casting mold is swept, so that the casting mold can automatically clean scraps generated in production in the use process, and the problem that the quality of the workpiece is low due to more scraps when the casting mold is used is avoided;

the upper die core 15 is located on the inner wall of the upper die block 9, the upper die core 15 is fixedly connected with the upper die block 9, the central axis of the upper die core 15 coincides with the central axis of the upper die block 9, a large sprue 16 is fixed inside the upper die plate 4, a sprue insert 17 is arranged on the inner wall of the large sprue 16, an integrated structure is formed between the large sprue 16 and the upper die plate 4, the large sprue 16 is movably connected with the sprue insert 17, the size of the large sprue 16 is larger than the wall thickness of a casting through the large sprue 16 and the sprue insert 17, an injection head of a die-casting machine can enter an inner cavity of the die, aluminum alloy liquid is filled from bottom to top, so that the internal bubbles of the formed workpiece are few, certain pressure can be applied to the aluminum alloy liquid by matching the sprue insert 17, the internal bubbles of the aluminum alloy liquid can be extruded, and the density and the quality of the formed casting are effectively improved.

The working principle is as follows: when the valve cover extrusion casting die is used, firstly, a guide rod 2 fixed above a lower die plate 1 is inserted into a guide sleeve 3 fixed below an upper die plate 4, an auxiliary positioning lower die block 5 is matched with an upper die block 9, a lower die core 8 is matched with an upper die core 15, a cooling liquid pipeline is respectively connected to a lower cooling nozzle 7 and an upper cooling nozzle 11, then an air pump is connected to the outside of an air connecting nozzle 14, the size of a large sprue 16 is larger than the wall thickness of a casting, an injection head of a die casting machine enters the casting die to fill aluminum alloy from bottom to top, so that fewer bubbles of aluminum alloy liquid are poured, the sprue 17 is matched with the large sprue 16 in an installing manner, a certain pressure is applied to a sprue insert 17 to extrude the bubbles in the aluminum alloy liquid, the cooling liquid enters the lower cooling cavity 6 and the upper cooling cavity 10 through the lower cooling nozzle 7 and the upper cooling nozzle 11 to rapidly cool the casting die and a workpiece, and sweep the surface of the casting die, after the workpiece is solidified, the pouring gate is finally solidified, gas is conveyed into the air cavity 12 through the gas connecting nozzle 14, the plurality of nozzles 13 are fixed below the air cavity 12, and the gas is sprayed out through the nozzles 13, which is the working principle of the valve cover extrusion casting mold.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. The utility model provides a valve gap extrusion casting mould, includes lower bolster (1) and last mould core (15), its characterized in that: a lower module (5) and a guide rod (2) are sequentially arranged from inside to outside above the lower template (1), a guide sleeve (3) is arranged outside the guide rod (2), an upper template (4) is fixed above the guide sleeve (3), a lower cooling cavity (6) is fixed inside the lower module (5), a lower cooling nozzle (7) is arranged at the front end of the lower cooling cavity (6), a lower mold core (8) is installed on the inner wall of the lower module (5), an upper module (9) is installed below the upper template (4), an upper cooling cavity (10) is fixed above the inner part of the upper module (9), an upper cooling nozzle (11) is arranged at the front end of the upper cooling cavity (10), an air cavity (12) is fixed below the inner part of the upper module (9), a nozzle (13) is fixed below the air cavity (12), and an air connecting nozzle (14) is installed at the front end of the air cavity (12), the upper mold core (15) is positioned on the inner wall of the upper mold block (9), a large sprue (16) is fixed inside the upper mold plate (4), and a sprue insert (17) is arranged on the inner wall of the large sprue (16).

2. A valve cover extrusion casting die as set forth in claim 1, wherein: an integrated structure is formed between the lower template (1) and the guide rods (2), and the guide rods (2) are symmetrically distributed along the central axis of the lower template (1).

3. A valve cover extrusion casting die as set forth in claim 1, wherein: the outer surface of the guide rod (2) is tightly attached to the inner surface of the guide sleeve (3), and the guide sleeve (3) is symmetrically distributed along the central axis of the upper template (4).

4. A valve cover extrusion casting die as set forth in claim 1, wherein: the lower cooling cavity (6) is fixedly connected with the lower cooling nozzle (7), and the central axis of the lower cooling cavity (6) coincides with the central axis of the lower module (5).

5. A valve cover extrusion casting die as set forth in claim 1, wherein: go up and constitute the integrated structure between module (9) and last cooling chamber (10), and the axis of going up module (9) coincides mutually with the axis of going up cooling chamber (10).

6. A valve cover extrusion casting die as set forth in claim 1, wherein: the air cavity (12) is fixedly connected with the nozzles (13), and the nozzles (13) are equidistantly distributed along the horizontal direction of the air cavity (12).

7. A valve cover extrusion casting die as set forth in claim 1, wherein: go up and be fixed connection between mold core (15) and last module (9), and go up the axis of mold core (15) and go up the axis coincidence of module (9) mutually.

8. A valve cover extrusion casting die as set forth in claim 1, wherein: the large gate (16) and the upper template (4) form an integrated structure, and the large gate (16) is movably connected with the gate insert (17).

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