CN218487156U

CN218487156U - Roll neck pouring mould

Info

Publication number: CN218487156U
Application number: CN202222706386.0U
Authority: CN
Inventors: 宁建阳
Original assignee: Jiangsu Kinuo Fumace Roller Co ltd
Current assignee: Jiangsu Kinuo Fumace Roller Co ltd
Priority date: 2022-10-14
Filing date: 2022-10-14
Publication date: 2023-02-17
Anticipated expiration: 2032-10-14

Abstract

The utility model discloses a roll neck casting mould, which comprises a first casting mould and a second casting mould; the first casting mould comprises an outer side plate a, an inner side plate a and a first cavity formed by a bottom plate a; the first cavity is arranged to be an annular body, and the inner ring of the first cavity is arranged to be stepped; the second casting die comprises a second cavity formed by an outer side plate b, an inner side plate b and a bottom plate b; the second cavity is an annular body, and the outer ring of the second cavity is provided with an inclination angle alpha; the inner ring of the first cavity is provided with three layers of steps; wherein the side surface and the bottom surface of the third step form an end forming groove of the roll neck; the side of the second step is arranged to be an inclined surface matched with the outer ring of the second cavity. The advantage can effectively avoid cast moulding's roller neck product to glue sand, improves the surface quality of roller neck, and work such as having significantly reduced digging out the gravel, repair welding, polishing, product quality is stable, and economic benefits obviously promotes.

Description

Roll neck pouring mould

Technical Field

The utility model relates to a field of pouring mould especially relates to a roll neck pouring mould.

Background

The roll necks with the diameters of phi 800mm, phi 1200mm and phi 1300mm are all formed by casting; in the casting process, firstly, sand is fed into a wood mold, then the wood mold is demolded to form a sand mold, a sand mold cavity of the sand mold is matched with a loam core to form an annular runner, and molten iron is poured into the runner to form a roll neck; the roll neck is structurally characterized in that an annular groove is formed; among the prior art, form the sand mould of integral type through the wooden model, its main problem that exists is:

1. after the wooden mold is lifted out, the sand mold is easy to damage, and the strength is not enough after sand filling and repairing.

2. After the high-temperature resistant coating is coated in the annular concave channel with the cross-sectional dimension of 70-61 (namely the forming groove at the end part of the roll neck), the phenomena of uneven coating and material shortage always exist randomly.

The two phenomena can lead to final sand sticking of the product, and the part of the sand sticking is randomly distributed on the surface of the product, so that the subsequent work of digging and removing gravels, repairing welding and polishing in a large amount is increased. It is therefore desirable to design a new roll neck casting mold.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the defect that exists among the prior art, provide a roll neck pouring mould convenient to drawing of patterns, sand mould stable in structure.

In order to achieve the purpose, the technical scheme of the utility model is to provide a roll neck casting mould, which comprises a first casting mould and a second casting mould; the first casting die comprises a first cavity formed by an outer side plate a, an inner side plate a and a bottom plate a; the first cavity is arranged into an annular body, and the inner ring of the first cavity is arranged into a step shape; the second casting mould comprises an outer side plate b, an inner side plate b and a second cavity formed by a bottom plate b; the second cavity is an annular body, and the outer ring of the second cavity is provided with an inclination angle alpha.

Preferably: the inner ring of the first cavity is provided with three layers of steps; wherein the side surface and the bottom surface of the third step form an end forming groove of the roll neck; the side of the second step is arranged to be an inclined surface matched with the outer ring of the second cavity.

Preferably: the inclination angle alpha is set to 95-100 deg.

Preferably: and molding sand is arranged in the first cavity and the second cavity to respectively form a first sand mold and a second sand mold.

Preferably: the second sand mould is arranged inside the first sand mould in a matching mode.

The utility model has the advantages as follows: the roll neck casting mold is arranged into the first casting mold and the second casting mold which are mutually independent, and the inner ring of the cavity of the first casting mold is arranged in a step shape, so that the first sand mold obtained after the first casting mold is subjected to sand injection and demolding is stable in structure, the sand mold is not easy to damage, and the structural strength is high; and the annular concave channel (namely the forming groove at the end part of the roll neck) is changed into an open type, so that high-temperature-resistant paint is convenient to brush, the brushing is convenient and quick, and the phenomena of uneven coating and material shortage are effectively avoided.

A second sand mold obtained after sand injection and demolding of the second casting mold is arranged in the first sand mold in a matched mode to form a roll neck forming groove; the obtained outer ring of the second sand mold and the inner ring of the first sand mold are inclined surfaces which are matched, so that the first sand mold and the second sand mold can be conveniently combined and placed, and the sand mold can be effectively prevented from being collided and damaged;

the utility model has simple structure, the first sand mould and the second sand mould formed by the first casting mould and the second casting mould are matched for use, and the cavity of the casting mould and the loam core are combined to form a forming pouring gate of the roll neck; effectively avoid cast molding's roll neck product to glue sand, improve the surface quality of roll neck, the work such as having significantly reduced digging out the gravel, repair welding, polishing, product quality is stable, and economic benefits obviously promotes.

Drawings

FIG. 1 is a schematic view of a prior art sand mold and core construction;

FIG. 2 is a schematic view of a roll neck configuration;

fig. 3 is a schematic view of a first casting mold according to the present invention;

fig. 4 is a schematic structural view of a second casting mold of the present invention;

FIG. 5 is a schematic view of the combined structure of the first sand mold and the second sand mold of the present invention;

FIG. 6 is a schematic structural view of the first sand mold, the second sand mold and the core;

1. a first casting mold; 2. a second casting mold; 11. an outer panel a;12. an inner side plate a;13. a bottom plate a;14. a first cavity; 15. a first sand mold; 21. an outer panel (b); 22. an inner side plate b;23. a bottom plate b;24. a second cavity; 25. a second sand mold; 141. a third step; 142. a second step; 3. a core; 4. the end part of the roll neck; 5. a roll neck; 6. and (5) molding a sand cavity.

Detailed Description

The following description will further describe embodiments of the present invention with reference to the accompanying drawings and examples. The following examples are only used to illustrate the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

Examples

Referring to fig. 3 to 6 together, a roll neck casting mold comprises a first casting mold 1 and a second casting mold 2; the first casting mould 1 comprises a first cavity 14 formed by an outer side plate a11, an inner side plate a12 and a bottom plate a 13; the first cavity 14 is an annular body, and the inner ring of the first cavity 14 is stepped; the second casting die 2 comprises a second cavity 24 formed by an outer side plate b21, an inner side plate b22 and a bottom plate b 23; the second cavity 24 is an annular body, and the outer ring of the second cavity 24 is provided with an inclination angle alpha; the inclination angle alpha is set to be 95-100 degrees; molding sand is arranged in the first cavity 14 and the second cavity 24 to form a first sand mold 15 and a second sand mold 25 respectively; the second sand mould 25 is arranged inside the first sand mould 15 in a matching way.

In the embodiment, the first casting mold 1 and the second casting mold 2 are mutually independent split structures, and the inner ring of the first cavity 14 of the first casting mold is arranged in a stepped manner, so that the first sand mold 15 obtained after the first casting mold 1 is subjected to sand injection and demolding is stable in structure, the sand mold is not easy to damage, and the structural strength is high; and the annular concave channel (namely the forming groove at the end part 4 of the roll neck) is changed into an open type, so that high-temperature-resistant paint is convenient to brush, the brushing is convenient and quick, and the phenomena of uneven coating and material shortage are effectively avoided.

As a specific technical solution of the above embodiment, the inner ring of the first cavity 14 is provided with three steps; wherein the side and bottom surfaces of the third step 141 form the forming grooves of the roll neck end 4; the side of the second step 142 is provided as an inclined surface that matches the outer circumference of the second cavity 24.

In the scheme, because the side surface of the second step 142 of the inner ring of the first cavity is provided with the inclined surface matched with the outer ring of the second cavity 24, the obtained outer ring of the second sand mold is the inclined surface matched with the inner ring of the first sand mold, the first sand mold and the second sand mold can be conveniently combined and placed, and the sand mold can be effectively prevented from being collided and damaged; and (3) arranging the second sand mold obtained after the second casting mold is subjected to sand injection and demolding in the first sand mold in a matching way, and simultaneously matching with the sand core to form a forming groove of the roll neck part 5.

The utility model has simple structure, the first sand mould 15 and the second sand mould 25 formed by the first casting mould 1 and the second casting mould 2 are matched for use, and the cavity of the casting mould and the loam core 3 are combined to form a forming pouring gate of a roll neck; effectively avoid cast molding's roll neck product to glue sand, improve the surface quality of roll neck, the work such as having significantly reduced digging out the gravel, repair welding, polishing, product quality is stable, and economic benefits obviously promotes.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and embellishments can be made without departing from the technical principle of the present invention, and these improvements and embellishments should also be regarded as the protection scope of the present invention.

Claims

1. A roll neck pouring mould which is characterized in that: comprises a first casting mould (1) and a second casting mould (2); the first casting mould (1) comprises a first cavity (14) formed by an outer side plate a (11), an inner side plate a (12) and a bottom plate a (13); the first cavity (14) is arranged to be an annular body, and the inner ring of the first cavity (14) is arranged to be stepped; the second casting mould (2) comprises a second cavity (24) formed by an outer side plate b (21), an inner side plate b (22) and a bottom plate b (23); the second cavity (24) is an annular body, and the outer ring of the second cavity (24) is provided with an inclination angle alpha.

2. A roll neck casting mold according to claim 1, wherein: the inner ring of the first cavity (14) is provided with three layers of steps; wherein the side surface and the bottom surface of the third step (141) form an end forming groove of the roll neck; the side surface of the second step (142) is set to be an inclined surface matched with the outer ring of the second cavity (24).

3. A roll neck casting mold according to claim 1, wherein: the inclination angle alpha is set to 95-100 deg.

4. A roll neck casting mold according to claim 1, wherein: and molding sand is arranged in the first cavity (14) and the second cavity (24) to form a first sand mold (15) and a second sand mold (25) respectively.

5. A roll neck casting mold according to claim 4, wherein: the second sand mould (25) is arranged inside the first sand mould (15) in a matching way.