CN210732985U

CN210732985U - Chemical industry impeller mould

Info

Publication number: CN210732985U
Application number: CN201921718801.6U
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: 2019-10-14
Filing date: 2019-10-14
Publication date: 2020-06-12
Anticipated expiration: 2029-10-14

Abstract

The utility model discloses a chemical impeller mould, which is used for forming a chemical impeller; the mold comprises: the device comprises an exhaust cabin (1), an upper positioning jig (2), a mold upper cover (3), an outer ring mold (4), a mold core (5), a mold base (6) and a lower positioning jig (7); the utility model has the advantages of, use location smelting tool and exhaust apparatus and can improve mould machining precision and processingquality, not only replace traditional manual processing and the mode of machining cooperation, still can further improve chemical industry impeller production efficiency, reduce man-hour, reduce operational environment dust pollution.

Description

Chemical industry impeller mould

Technical Field

The utility model relates to a mould especially relates to a chemical industry impeller mould.

Background

In the existing chemical field, a main part of a chemical pump or a stirring mechanism is an impeller. Because the actual working environment of the chemical impeller is severe, the chemical impeller is required to have the characteristics of corrosion resistance, wear resistance, high strength and the like, so that the composite impeller which takes a metal material as a framework and is coated with a non-metal material appears, and the composite impeller can better meet the actual working requirements. The traditional processing mode of the impeller is that the non-metal coating/lining of the impeller is processed manually, and then the numerical control machine further processes the outer contour to ensure the size, and the method has the following defects: the machining is discontinuous, so that errors exist in the installation and determination of the reference surface during secondary machining, the size precision of a finished product is not high, and the design efficiency of equipment cannot be reached; the early processing depends on manpower, so that the labor cost is high and the working hours are consumed; the numerical control processing cost is high, and the dust pollution caused by machining is serious.

In conclusion, a production device special for a chemical impeller is needed, and the production device can save working hours, ensure the processing precision and reduce pollution during the production process of the chemical impeller, and can be used for mass production.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a chemical industry impeller mould can solve the problem in the production of current chemical industry impeller.

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

A chemical industry impeller mold, comprising: exhaust cabin, go up location smelting tool, mould upper cover, outer lane mould, mould core, mould base, lower location smelting tool.

A through hole for installing the upper positioning jig is formed in the center of the upper cover of the die; the upper positioning jig comprises a guide pin and a fixing ring, the guide pin is nested in the fixing ring, an annular groove serving as the exhaust cabin is formed in the lower end face of the fixing ring, and further, the surface of the lower end face of the guide pin is a conical surface and can slide in the fixing ring along the axial direction; the lower positioning jig is arranged at the center of the mold base; the lower positioning jig comprises a positioning column and a circular fixing plate, further, the surface of the upper end face of the positioning column is an inner conical surface, and the positioning column is fixed at the center of the circular fixing plate; the outer ring mold is arranged between the mold upper cover and the mold base; the mould core with the positioning jig is nested structure down, install in inside the chemical industry impeller mould.

Furthermore, the upper cover of the die is a container cover with a circular structure, and the lower end face of the upper cover is uniformly provided with positioning pins along the circumferential direction.

Furthermore, positioning grooves are uniformly formed in the upper end face of the die base along the circumferential direction.

Further, the outer ring mold is of an annular structure, furthermore, a positioning hole is formed in the upper end face of the outer ring mold along the circumferential direction, the positioning hole corresponds to the positioning pin of the mold upper cover, and a positioning boss corresponding to the positioning groove of the mold base is arranged on the lower end face of the outer ring mold along the circumferential direction.

Further, the mould core is of a radial spiral flow guide structure.

Further, the mould upper cover go up the location smelting tool outer lane mould the mould core the axis of location smelting tool all coincides down.

The utility model has the advantages of as follows:

1. the process is simplified, mass and large-scale production is realized by using the die, the original manual processing and machining are replaced by integrated molding, the dust pollution of the working environment is reduced, and the production efficiency is improved.

2. The positioning jig ensures that the coated outer contour of the impeller and a rotating shaft of the impeller have good coaxiality, and solves the problem that the coaxiality is difficult to ensure in the original process and the dimensional precision is influenced.

3. The exhaust chamber can exhaust the gas separated out or mixed with the raw material in the closed die cavity, and the quality problem caused by bubbles is solved.

Drawings

FIG. 1 is a schematic structural view of a chemical impeller mold of the utility model;

in the figure:

1-an exhaust chamber; 2-positioning a jig; 3-covering the mould; 4-outer ring mold; 5-a mold core; 6-a mould base; 7-lower positioning jig.

Detailed Description

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

In the description of the present invention, it is to be understood that the terms "upper", "lower", "inner", "center", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and 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 thus, should not be construed as limiting the present invention.

A chemical impeller mould is mainly used for producing chemical impellers in batches; the mold shown in fig. 1 mainly comprises: exhaust cabin 1, go up location smelting tool 2, mould upper cover 3, outer lane mould 4, mould core 5, mould base 6, lower location smelting tool 7.

The structure is described in detail:

the upper die cover 3 is a circular-structure container cover, a through hole for installing the upper positioning jig 2 is formed in the center of the upper die cover, the upper positioning jig 2 comprises a guide pin and a fixing ring, and the guide pin is nested in the fixing ring; the lower end face of the fixing ring is provided with an annular groove serving as the exhaust cabin 1, in the experiment, under the condition that the exhaust cabin 1 is not arranged, a product subjected to vacuum casting is detected by an ultrasonic flaw detector to find that air holes are formed in the product, then an exhaust design is added, the product subjected to vacuum casting again is detected by the ultrasonic flaw detector to ensure that the internal structure of the part is compact and has no defects, and the exhaust cabin 1 is proved to be capable of effectively removing residual air in a sealing mould in the casting process; the surface of the lower end face of the guide pin is a conical surface, preferably, the arc transition is arranged at the junction of each curved surface, and the guide pin can axially slide in the fixed ring, so that the positioning and clamping force of the workpiece is adjusted when the die is installed; lower location smelting tool 7 is fixed in 6 center departments of mould base, and lower location smelting tool 7 includes reference column, circular fixed plate, and preferred design does, and reference column up end surface is interior conical surface, and the reference column is fixed in circular fixed plate center department with the bolted connection mode.

As shown in fig. 1, the axes of the upper mold cover 3, the upper positioning jig 2, the outer ring mold 4, the mold core 5 and the lower positioning jig 7 are all overlapped.

As shown in fig. 1, the outer ring mold 4 is installed between the mold upper cover 3 and the mold base 6; the mold core 5 and the lower positioning jig 7 are of a nested structure and are arranged inside the chemical impeller mold.

The lower end face of the upper die cover 3 is uniformly provided with positioning pins along the circumferential direction, and the upper end face of the die base 6 is uniformly provided with positioning grooves along the circumferential direction. The outer ring mold 4 is of an annular structure, the upper end face of the outer ring mold 4 is provided with a positioning pin with a positioning hole corresponding to the mold upper cover 3 along the circumferential direction, and the lower end face of the outer ring mold 4 is provided with a positioning groove with a positioning boss corresponding to the mold base 6 along the circumferential direction.

The mould core 5 is a radial spiral diversion structure.

According to the connection mode shown in fig. 1, fixing the mold core 5 and the metal framework of the impeller through a positioning jig; the fixed die is subjected to vacuum pouring, and a finished product completely meets the size required by a customer drawing through three-dimensional scanning, so that the coated outer contour of the impeller and the rotating shaft of the impeller have good coaxiality, and the processing precision is improved.

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 chemical industry impeller mould which characterized in that: comprises an exhaust cabin (1), an upper positioning smelting tool (2), a mould upper cover (3), an outer ring mould (4), a mould core (5), a mould base (6) and a lower positioning smelting tool (7);

a through hole for installing the upper positioning jig (2) is formed in the center of the upper die cover (3);

the upper positioning jig (2) comprises a guide pin and a fixing ring, the guide pin is nested in the fixing ring, and an annular groove is formed in the lower end face of the fixing ring and serves as the exhaust cabin (1);

the lower positioning jig (7) is arranged at the center of the mold base (6);

the lower positioning jig (7) comprises a positioning column and a circular fixing plate, and the positioning column is fixed at the center of the circular fixing plate;

the outer ring mold (4) is arranged between the mold upper cover (3) and the mold base (6);

the mould core (5) with lower location smelting tool (7) be nested structure, install in inside the chemical industry impeller mould.

2. The chemical impeller mold according to claim 1, characterized in that the mold upper cover (3) is a circular structure container cover, and the lower end surface is uniformly provided with positioning pins along the circumferential direction.

3. The chemical impeller mold according to claim 2, wherein the upper end surface of the mold base (6) is uniformly provided with positioning grooves along the circumferential direction.

4. The chemical impeller mold according to claim 3, wherein the outer ring mold (4) is of an annular structure, the upper end surface of the outer ring mold is provided with positioning holes along the circumferential direction, the positioning holes correspond to the positioning pins of the mold upper cover (3), the lower end surface of the outer ring mold is provided with positioning bosses along the circumferential direction, and the positioning bosses correspond to the positioning grooves of the mold base (6).

5. The chemical impeller mold according to claim 1, characterized in that the mold core (5) is a radial spiral flow guide structure.

6. The chemical industry impeller mold of claim 1, wherein the surface of the lower end surface of the pilot pin is a conical surface; the pilot pin is axially slidable within the retaining ring.

7. The chemical impeller mold according to any one of claims 1-6, characterized in that the axes of the mold upper cover (3), the upper positioning tool (2), the outer ring mold (4), the mold core (5) and the lower positioning tool (7) are all coincident.