CN213563375U

CN213563375U - Stealthy sprue gate structure of pottery pump case

Info

Publication number: CN213563375U
Application number: CN202021785359.1U
Authority: CN
Inventors: 梁士城
Original assignee: Suzhou Aonaite Silicon Carbide Ceramic Technology Co ltd
Current assignee: Suzhou Aonaite Silicon Carbide Ceramic Technology Co ltd
Priority date: 2020-08-24
Filing date: 2020-08-24
Publication date: 2021-06-29
Anticipated expiration: 2030-08-24

Abstract

The utility model discloses an invisible sprue gate structure of pottery pump case, include: a pouring gate, a pouring cavity and a metal framework; the metal framework is of a shell structure and is coated on the outermost layer of the ceramic pump shell, and the casting cavity is reserved between the inner surface of the metal framework and the outer surface of the mould; the pouring gate is positioned on the metal framework and is of a counter bore structure; the utility model discloses the advantage is, adopts the design of formula of sinking, makes interface structure compacter, and the location is more accurate, and then reduces the condition of leaking in the work of ceramic pump, also makes the ceramic pump whole more pleasing to the eye, coordinate, still can make inside working face one shot forming, and the surface is very smooth, reduces with the resistance of thick liquid, reduces the energy consumption loss, promotes machining efficiency.

Description

Stealthy sprue gate structure of pottery pump case

Technical Field

The utility model relates to a ceramic pump processing technology field especially relates to an invisible sprue gate structure of pottery pump case.

Background

A common form of a pump shell of the ceramic pump is a metal externally-coated framework combined ceramic inner container, and the structure is that the pump body has higher compressive strength while having better wear resistance and corrosion resistance. The common pouring structure in the processing process of the ceramic pump shell adopts the metal framework to arrange the outward convex pouring gate, and although the technical scheme saves time and labor in the shell design and processing stages, the outward convex structure is not firm in fixation and uneven in joints, and the untreated part is easy to collide with other objects after pouring, so that the ceramic liner is damaged.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides an invisible sprue gate structure of pottery pump case can solve above-mentioned problem.

For this purpose, the utility model is implemented by the following technical scheme.

A stealthy sprue gate structure of ceramic pump case includes: a pouring gate, a pouring cavity and a metal framework;

the metal framework is of a shell structure and is coated on the outermost layer of the ceramic pump shell, and the casting cavity is reserved between the inner surface of the metal framework and the outer surface of the mould;

the pouring gate is positioned on the metal framework and is of a counter bore structure; at least two blind holes with internal threads are uniformly distributed on the upper end surface of the sprue gate flange along the circumferential direction;

the pouring cavity is communicated with the outside through a through hole in the center of the pouring gate.

Furthermore, an annular groove is processed on the upper end face of the sprue gate flange, the center of the annular groove is superposed with the center of the sprue gate, and the annular groove is located between the through hole of the sprue gate and the blind hole along the radial direction.

Furthermore, a sealing ring is arranged in the annular groove.

Furthermore, the pouring gate structure also comprises a sinking pouring gate, the sinking pouring gate is a tubular structure, the bottom of the sinking pouring gate extends outwards along the radial direction to form a flange, the lower surface of the flange is provided with a boss, and a sinking structure formed by the flange and the boss is matched with the sinking structure of the pouring gate; counter bores are distributed on the upper end face of the flange along the circumferential direction and correspond to the blind holes one by one; the sunken pouring channel is arranged at the pouring gate through a screw and forms a detachable structure with the metal framework.

Furthermore, the sprue gate structure also comprises a blank cap which is a spherical cap type shell structure, and a side end structure is matched with the sprue gate sinking structure; counter bores are formed in the edge of the outer surface of the blank cap along the circumferential direction and correspond to the blind holes one by one; the blank cap is arranged at the pouring gate through a screw, the outer surface and the outer surface of the metal framework form a continuous spherical structure, and the inner surface of the blank cap and the inner surface of the metal framework also form a continuous spherical structure.

Furthermore, the joint of the outer surface of the blank cap and the outer surface of the metal framework is processed into a groove butt joint structure by cold welding.

The utility model has the advantages of as follows:

1. the utility model discloses a sprue gate adopts the design of formula of sinking, makes interface structure compacter, and the location is more accurate, and then reduces the condition of leaking in the ceramic pump work, also makes the whole more pleasing to the eye of ceramic pump, harmony.

2. The utility model discloses a sprue gate adopts the design of formula of sinking to make inside working face one shot forming, and the surface is very smooth, reduces with the resistance of thick liquid, reduces the energy consumption loss, promotes machining efficiency.

Drawings

In order to illustrate the embodiments of the present invention more clearly, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only one or several embodiments of the present invention, and that other drawings can be obtained by those skilled in the art without inventive efforts.

The distribution positions and distribution numbers of the same structures shown in the drawings are only for convenience of describing the invention, but do not indicate or imply that the structures referred to must have a specific orientation, distribution number and therefore should not be construed as limiting the invention.

Fig. 1 is a cross-sectional view of a pouring gate of the present invention;

FIG. 2 is a perspective view of a sprue gate;

FIG. 3 is a cross-sectional view of a nozzle and sink gate combination;

FIG. 4 is a perspective view of the nozzle and sink gate assembly;

FIG. 5 is a cross-sectional view of the spout and closure combination;

FIG. 6 is an enlarged view taken at A: A in FIG. 5;

fig. 7 is an enlarged view of fig. 5 at B: B.

In the figure:

1-a pouring gate; 2-casting a cavity; 3-a metal framework; 4-screws; 5-sinking type pouring gate; 6-a ceramic layer; 7-covering the blank cap; 8-sealing ring; 9-groove butt joint structure; 301-blind hole; 302-annular groove.

Detailed Description

In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "root", "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in fig. 1.

The present invention will be further explained with reference to the accompanying drawings.

A invisible sprue gate structure of a ceramic pump casing, as shown in fig. 1 and 2, comprising: a pouring gate 1, a pouring cavity 2 and a metal framework 3;

the metal framework 3 is of a spherical shell structure and is coated on the outermost layer of the ceramic pump shell, and a casting cavity 2 is reserved between the inner surface of the metal framework 3 and the outer surface of the mould;

the pouring gate 1 is positioned on the metal framework 3, and specifically, a counter bore is machined in the metal framework 3; 6 blind holes 301 with internal threads are uniformly distributed on the upper end surface of the flange of the pouring gate 1 along the circumferential direction; preferably, the upper end face of the flange of the pouring gate 1 is machined with an annular groove 302, the center of the annular groove 302 coincides with the center of the pouring gate 1, and in the radial direction, the annular groove 302 is located between the through hole of the pouring gate 1 and the blind hole 301.

The pouring cavity 2 is communicated with the outside through a through hole in the center of the pouring gate 1.

Preferably, before pouring, the pouring gate structure further comprises a sinking pouring gate 5, wherein the sinking pouring gate 5 is a tubular structure, a flange extends outwards from the bottom of the sinking pouring gate in the radial direction, a boss is arranged on the lower surface of the flange, and a sinking structure formed by the flange and the boss is matched with the sinking structure of the pouring gate; counter bores are distributed on the upper end face of the flange along the circumferential direction and correspond to the blind holes 301 one by one; referring to fig. 3 and 4, the sinking pouring channel 5 is installed at the pouring port 1 through a screw 4 and forms a detachable structure with the metal framework 3, and slurry is poured into the pouring cavity 2 through the pouring channel to form the ceramic liner.

Preferably, after casting, a continuous ceramic layer 6 is formed inside the casting cavity 2. The sprue channel is disassembled from the sprue gate structure, the blank cap 7 is replaced, the blank cap 7 is of a spherical crown type shell structure, and the side end structure is matched with the sinking structure of the sprue gate 1; counter bores are arranged at the edge of the outer surface of the blank cap 7 along the circumferential direction and correspond to the blind holes 301 one by one; as shown in fig. 5 and 6, the blank cap 7 is mounted at the sprue gate 1 through the screw 4, the outer surface and the outer surface of the metal framework 3 form a continuous spherical structure, and the inner surface of the blank cap 7 and the inner surface of the metal framework 3 also form a continuous spherical structure. In order to enhance the sealing performance, as shown in fig. 6, a sealing ring 8 is installed in the annular groove 302, and the joint of the outer surface of the blank cap 7 and the outer surface of the metal framework 3 is processed into a groove butt joint structure 9 by cold welding, as shown in fig. 7.

The above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the examples, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.

Claims

1. The utility model provides a stealthy sprue gate structure of pottery pump case which characterized in that includes: the pouring gate (1), the pouring cavity (2) and the metal framework (3);

the metal framework (3) is of a shell structure and is coated on the outermost layer of the ceramic pump shell, and the pouring cavity (2) is reserved between the inner surface of the metal framework (3) and the outer surface of the mould;

the pouring gate (1) is positioned on the metal framework (3) and is of a counter bore structure; the upper end surface of the flange of the pouring gate (1) is uniformly provided with at least two blind holes (301) with internal threads along the circumferential direction;

the pouring cavity (2) is communicated with the outside through a through hole in the center of the pouring gate (1).

2. The invisible sprue gate structure of ceramic pump shell according to claim 1, characterized in that the upper end face of the sprue gate (1) flange is machined with an annular groove (302), the center of the annular groove (302) coincides with the sprue gate (1) center, and in radial direction, the annular groove (302) is located between the through hole of the sprue gate (1) and the blind hole (301).

3. The invisible sprue gate structure of ceramic pump casing according to claim 2, characterized in that a seal ring (8) is mounted in said annular groove (302).

4. The invisible sprue gate structure of the ceramic pump shell according to claim 1, wherein the sprue gate structure further comprises a sunken sprue channel (5), the sunken sprue channel (5) is a tubular structure, a flange extends outwards from the bottom in the radial direction, a boss is arranged on the lower surface of the flange, and a sunken structure formed by the flange and the boss is matched with the sprue gate sunken structure; counter bores are distributed on the upper end face of the flange along the circumferential direction and correspond to the blind holes (301) one by one; the sunken pouring channel (5) is arranged at the pouring gate (1) through a screw (4) and forms a detachable structure with the metal framework (3).

5. The invisible sprue structure of ceramic pump shell according to claim 1 or 3, further comprising a blank cap (7), wherein the blank cap (7) is a spherical crown type shell structure, and a side end structure is adapted to a sinking structure of the sprue (1); counter bores are formed in the edge of the outer surface of the blank cap (7) along the circumferential direction and correspond to the blind holes (301) one by one; the blank cap (7) is installed at the pouring gate (1) through a screw (4), the outer surface and the outer surface of the metal framework (3) form a continuous spherical structure, and the inner surface of the blank cap (7) and the inner surface of the metal framework (3) also form a continuous spherical structure.

6. The invisible sprue gate structure of the ceramic pump shell according to claim 5, wherein the joint of the outer surface of the blank cap (7) and the outer surface of the metal framework (3) is processed into a groove butt joint structure (9) by cold welding.