CN212945281U

CN212945281U - Flange shell casting die

Info

Publication number: CN212945281U
Application number: CN202021621730.0U
Authority: CN
Inventors: 陆建华; 王秋新
Original assignee: CHANGZHOU JULING FOUNDRY CO LTD
Current assignee: CHANGZHOU JULING FOUNDRY CO LTD
Priority date: 2020-08-06
Filing date: 2020-08-06
Publication date: 2021-04-13
Anticipated expiration: 2030-08-06

Abstract

The utility model discloses a flange shell foundry goods mould, including cope flask and drag flask, the inside all packing of cope flask and drag flask has the sand mould, sand mould center department is equipped with corresponding cavity, cavity one side of cope flask is equipped with true runner, true runner is linked together through the cavity of flow path with the cope flask, true runner bottom is equipped with false runner, false runner one side is connected with a set of exhaust piece. The utility model discloses a set up false runner and exhaust piece, be favorable to pouring molten iron etc. through true runner, enter into the first cavity of cavity gradually when molten iron, second cavity and third cavity, make the gas in the cavity enter into false runner through the clearance between exhaust piece and the sand mould under the effect of the exhaust piece of third cavity one side, in discharging the cope flask outside through false runner, the effectual unable discharge of gas in having avoided foundry goods in-process foundry goods, cause the foundry goods to produce the problem of gas pocket, the quality of foundry goods has been improved.

Description

Flange shell casting die

Technical Field

The utility model relates to a flange shell foundry goods field, in particular to flange shell foundry goods mould.

Background

When the shell type casting clay sand molding process is designed, the shape of a large cavity inside is formed by a sand core. In order to ensure that the sand core has enough strength in the carrying and pouring processes, a hot core machine is generally adopted as core making equipment, and precoated sand is adopted as a core making material. Because the surface of the silica sand is coated with a layer of thermosetting resin binder during production of the precoated sand, a great amount of gas is generated when the resin in the precoated sand core meets high-temperature molten iron in the casting pouring process, and if the gas cannot be timely and smoothly discharged out of a casting mold, the gas possibly invades into the casting to generate a gas hole defect, so that the casting is scrapped. Therefore, how to design an effective sand core exhaust system is a problem which must be considered and solved by a modeling process designer.

Therefore, it is necessary to develop a casting mold for a flange shell to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a flange shell foundry goods mould to the shell class foundry goods that proposes in solving above-mentioned background art will cause the foundry goods to produce the gas pocket because the effect of the inside gas of foundry goods in the die-casting, lead to condemned problem.

In order to achieve the above object, the utility model provides a following technical scheme: a flange shell casting mold comprises a cope flask and a drag flask, wherein sand molds are filled in the cope flask and the drag flask, corresponding cavities are formed in the centers of the sand molds, a true sprue is arranged on one side of the cavity of the cope flask and communicated with the cavity of the cope flask through a flow path, a false sprue is arranged at the bottom of the true sprue, one side of the false sprue is connected with a group of exhaust fins, and one end, far away from the false sprue, of each exhaust fin is in contact with the cavity in the cope flask.

Preferably, the cavity comprises a first chamber, a second chamber and a third chamber which are arranged in sequence.

Preferably, two protruding blocks are arranged in the first chamber, the second chamber is arranged at the bottom of the first chamber, and the second chamber is T-shaped.

Preferably, the third chamber comprises a polygonal cavity and a rectangular cavity.

Preferably, the true gate and the false gate both penetrate the cope and the sand mold.

Preferably, the vent piece is inserted into a sand mold of the cope flask.

The utility model has the advantages that:

through setting up false runner and exhaust piece, be favorable to pouring the molten iron etc. through the true runner, enter into the first cavity of cavity gradually when the molten iron, second cavity and third cavity, make the gas in the cavity enter into false runner through the clearance between exhaust piece and the sand mould under the effect of the exhaust piece of third cavity one side, in discharging the cope flask outside through false runner, the effectual unable discharge of gas in having avoided foundry goods in-process foundry goods, cause the foundry goods to produce the problem of gas pocket, the quality of foundry goods has been improved.

Drawings

FIG. 1 is a schematic view of the structure of a cope flask according to the present invention;

FIG. 2 is a schematic structural view of the drag flask of the present invention;

in the figure: 1 cope flask, 2 drag flask, 3 sand mold, 4 cavities, 5 true sprue, 6 flow path, 7 false sprue, 8 vent flap, 41 first chamber, 42 second chamber, 43 third chamber, 411 protruding block.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The utility model provides a flange shell foundry goods mould as shown in fig. 1-2, including cope flask 1 and drag flask 2, the inside all packing of cope flask 1 and drag flask 2 has

sand mould

3, 3 center departments of sand mould are equipped with

corresponding cavity

4, 4 one sides of cavity of cope flask 1 are equipped with true runner 5, true runner 5 is linked together through flow path 6 and cope flask 1's cavity 4, true runner 5 bottom is equipped with false runner 7, false runner 7 one side is connected with a set of exhaust piece 8, two exhaust piece 8 keeps away from false runner 7 one end and the interior cavity 4 contact of cope flask 1.

Further, in the above technical solution, the cavity 4 includes a first chamber 41, a second chamber 42 and a third chamber 43 which are sequentially arranged;

further, in the above technical solution, two protruding blocks 411 are arranged in the first chamber 41, the second chamber 42 is arranged at the bottom of the first chamber 41, and the second chamber 42 is T-shaped;

further, in the above technical solution, the third chamber 43 includes a polygonal cavity and a rectangular cavity;

further, in the above technical solution, the true gate 5 and the false gate 7 both penetrate through the cope flask 1 and the sand mold 3;

further, in the above-described embodiment, the exhaust piece 8 is inserted into the sand mold 3 of the cope flask 1.

This practical theory of operation:

referring to the attached drawings 1-2 of the specification, when the device is used, a sand mold 3 is filled into a cope flask 1 and a drag flask 2, a model of a casting, a true sprue 5 and a false sprue 7 are pressed out of the sand mold 3 of the cope flask 1 and the drag flask 2 under the mechanical action, an exhaust piece 8 is arranged between the false sprue 7 and the casting model, the cope flask 1 and the drag flask 2 are fixed, molten iron is introduced into the cope flask 1 through the true sprue 5, and after the molten iron is filled in the mold, gas is exhausted into the false sprue 7 through a gap between the exhaust piece 8 and the sand mold 3 and then is exhausted to the outer side of the cope flask 1, so that the problem that the gas in the casting cannot be exhausted in the casting process to cause air holes in the casting is effectively avoided, and the quality of the casting is improved.

In the description of the embodiments of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "disposed," "provided," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a flange shell foundry goods mould, includes cope flask (1) and drag flask (2), its characterized in that: the internal parts of the cope flask (1) and the drag flask (2) are filled with sand molds (3), the centers of the sand molds (3) are provided with corresponding cavities (4), one sides of the cavities (4) of the cope flask (1) are provided with a true sprue (5), the true sprue (5) is communicated with the cavity (4) of the cope flask (1) through a flow path (6), the bottom of the true sprue (5) is provided with a false sprue (7), one side of the false sprue (7) is connected with a group of exhaust sheets (8), and one end, far away from the false sprue (7), of each exhaust sheet (8) is in contact with the cavity (4) in the cope flask (1).

2. The flange shell casting mold of claim 1, wherein: the cavity (4) comprises a first chamber (41), a second chamber (42) and a third chamber (43) which are arranged in sequence.

3. The flange shell casting mold of claim 2, wherein: two protruding blocks (411) are arranged in the first cavity (41), the second cavity (42) is arranged at the bottom of the first cavity (41), and the second cavity (42) is T-shaped.

4. The flange shell casting mold of claim 2, wherein: the third chamber (43) comprises a polygonal cavity and a rectangular cavity.

5. The flange shell casting mold of claim 1, wherein: and the true gate (5) and the false gate (7) both penetrate through the cope flask (1) and the sand mold (3).

6. The flange shell casting mold of claim 1, wherein: the exhaust piece (8) is inserted into the sand mold (3) of the cope flask (1).