CN217752369U

CN217752369U - Impeller casting mold

Info

Publication number: CN217752369U
Application number: CN202221582146.8U
Authority: CN
Inventors: 刘云; 陈红兵; 唐敏; 刘君健; 唐云峰
Original assignee: Chongqing Jinfeng Machinery Manufacturing Co ltd
Current assignee: Chongqing Jinfeng Machinery Manufacturing Co ltd
Priority date: 2022-06-23
Filing date: 2022-06-23
Publication date: 2022-11-08
Anticipated expiration: 2032-06-23

Abstract

The utility model discloses an impeller casting mold, which belongs to the technical field of mechanical molds, and comprises a lower mold, blade blocks and an upper mold, the utility model discloses a blade blocks with a plurality of same structures are arranged in a cavity, so that the blade blocks form an impeller mold after being assembled, and the impeller is molded under the effect of combining the special structures of a blade block body, an upper body and a lower body, meanwhile, when the molded impeller is demolded, the blade blocks can be conveniently disassembled, the coating is not required to be filled in the inner cavity of the impeller mold, so as to further improve the efficiency of impeller production, in addition, under the limiting effect of the cavity on the blade blocks, the smoothness of the surface of the impeller can be improved by the assembling mold; through setting up the leaf piece body into rectangular form, wholly be the distortion structure for the leaf piece body forms the heliciform, and under the clearance effect between two adjacent leaf pieces, is convenient for impeller blade's rapid prototyping, with further improvement to impeller blade fashioned efficiency.

Description

Impeller casting mold

Technical Field

The utility model relates to a mechanical die technical field, in particular to impeller casting mold.

Background

The impeller refers to a disk provided with moving blades, is a component of an impulse turbine rotor, and can also be a general name of the disk and the rotating blades arranged on the disk. The impellers can be classified according to shape and opening and closing conditions.

However, in the production process of the impeller by using the existing impeller mold, the impeller mold is generally of an integrated structure, and before the impeller mold is poured at every time, some coatings need to be filled into the inner cavity of the mold, so that the molded impeller is demolded at the later stage.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an impeller casting mold can assemble and dismantle impeller mold to in the later stage carry out the drawing of patterns to fashioned impeller, make no longer need fill coating to impeller mold's inner chamber, with the efficiency of further improvement to impeller production, and improve the smoothness to the impeller surface.

For solving the technical problem, the utility model discloses a technical scheme:

an impeller casting mold comprises

The upper part of the lower die is provided with a groove, and a cavity is formed in the groove;

the impeller is characterized in that a plurality of blade blocks are annularly arranged in the cavity around the center of the cavity, an impeller blade gap is formed between every two adjacent blade blocks, each blade block comprises a blade block body, each blade block body is of a long strip shape and is of a twisted structure integrally, an upper body and a lower body are fixedly arranged at two ends of each blade block body respectively, and the upper body and the lower body are both arc-shaped;

the upper die is buckled on the upper part of the lower die, a pouring gate is arranged at the center of the upper die, and the pouring gate is communicated with the cavity.

According to some embodiments, an arc-shaped groove is formed in one side of the outer edge of the upper body, and the arc-shaped grooves of the plurality of upper bodies are spliced to form an annular groove.

According to some embodiments, the leaf blocks are arranged in a plurality of groups in a vertical direction.

According to some embodiments, the groove has a plurality of through holes formed on a circumferential surface thereof.

According to some embodiments, the circumferential surfaces of the lower and upper dies are threaded with a plurality of cylinders.

According to some embodiments, the arcuate length of the upper body is greater than the arcuate length of the upper end of the paddle body.

Has the advantages that:

1. through the leaf piece that is provided with a plurality of looks isostructures at the die cavity, make these leaf pieces after the equipment has been played, form an impeller mould, and at the leaf piece body, go up under the effect that body and lower body structure combined together, carry out the shaping to the impeller, simultaneously when drawing of patterns to fashioned impeller, can be convenient for dismantle these leaf pieces, no longer need fill coating to the inner chamber of impeller mould, in order further to improve the efficiency of impeller production, in addition, under the die cavity to the leaf piece restriction, make this assembly mould can improve the smoothness on impeller surface.

2. Through setting up the leaf piece body into rectangular form, the whole of leaf piece body is the distortion structure moreover for the leaf piece body forms the heliciform, and under the clearance effect between two adjacent leaf pieces, the quick shaping of the impeller blade of being convenient for, with further improvement to the fashioned efficiency of impeller blade.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

FIG. 1 is a schematic view of the present invention;

fig. 2 is an exploded view of the present invention;

FIG. 3 is an assembly view of the leaf block of the present invention;

FIG. 4 is a schematic view of the leaf block shown in FIG. 3.

In the figure, 1 a lower die, 11 grooves, 12 cavities, 13 through holes, 2 vane blocks, 21 vane block bodies, 22 upper bodies, 221 arc-shaped grooves, 23 lower bodies, 3 upper dies, 31 pouring gates and 4 cylinders.

Detailed Description

This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, the terms greater than, less than, exceeding, etc. are understood to exclude the number, and the terms above, below, inside, etc. are understood to include the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Referring to fig. 1 to 4, an impeller casting mold includes a lower mold 1, a vane block 2, and an upper mold 3.

The lower die 1 is provided with a groove 11 on the upper part of the lower die 1, and a cavity 12 is arranged in the groove 11, so that the blade block 2 can be conveniently installed.

Encircle its positive center in the die cavity 12 and be the ring form and be provided with a plurality of leaf pieces 2, form an impeller blade clearance between two adjacent leaf pieces 2, leaf piece 2 includes leaf piece body 21, leaf piece body 21 sets up to rectangular form, wholly is the distortion structure, the both ends of leaf piece body 21 are fixed respectively and are provided with body 22 and lower body 23, it all is the arc form with lower body 23 to go up body 22, it is concrete, the height of leaf piece 2 is unanimous with the degree of depth of die cavity 12, be convenient for restrict leaf piece 2 in die cavity 12 completely, be favorable to improving the smoothness on impeller surface.

Wherein, when placing the leaf piece 2, with body 23 down, it places in die cavity 12 to go up body 22 up, and go up body 22 and body 23 all are the arc form down, make the leaf piece 2 when installing in die cavity 12, just with the shape looks adaptation of die cavity 12, in order to fix the pincers to establish in die cavity 12 with leaf piece 2 completely, after filling up leaf piece 2 with die cavity 12, at this moment, the equipment of leaf piece 2 forms the impeller mould, and the clearance between two adjacent leaf pieces 2 forms the impeller piece, under this kind of mounting means, make when drawing of patterns to fashioned impeller, can be convenient for dismantle these leaf pieces 2, no longer need fill the coating to the inner chamber of impeller mould, with further improvement to the efficiency of impeller production.

The upper die 3 is buckled on the upper part of the lower die 1, a pouring gate 31 is arranged at the right center of the upper die 3, the pouring gate 31 is communicated with the cavity 12, and metal solution is poured into the cavity 12 conveniently to complete the forming of the impeller.

As shown in fig. 2, 3 and 4, an arc-shaped groove 221 is formed in one side of the outer edge of the upper body 22, the arc-shaped grooves 221 of the plurality of upper bodies 22 are spliced to form an annular groove, and besides the structure of the cavity 12 for limiting the vane blocks 2, a steel rope can be used for binding the impeller mold formed by the whole vane block 2 along the track of the arc-shaped groove 221.

Continuing to refer to fig. 2, the blade blocks 2 are arranged in multiple groups along the vertical direction, which facilitates the simultaneous molding of multiple impellers, further improves the efficiency of impeller production, and improves the production of impellers in batches.

Referring to fig. 1 and 2, a plurality of through holes 13 are formed on the circumferential surface of the groove 11 for dissipating heat from the metal solution in the cavity 12, so that a rapid cooling effect can be achieved.

In some embodiments, a gas treatment mechanism is disposed at the through hole 13, so as to facilitate timely treatment of harmful gas in the metal solution, thereby ensuring the cleanliness of the environment.

With continued reference to fig. 1 and 2, the circumferential surfaces of the lower die 1 and the upper die 3 are provided with a plurality of cylinders 4 by threads, so that after the impeller is molded, the upper die 3 is moved by using other mechanical structures, the impeller mold is taken out, and the molded impeller is subjected to demolding treatment.

To be further described, the arc length of the upper body 22 is greater than the arc length of the upper end of the vane block body 21, which is beneficial to generating a distance between two adjacent vane blocks 2, and the thickness of the vane on the impeller can be determined by designing the arc length of the upper body 22.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the gist of the present invention within the knowledge range of those skilled in the art.

Claims

1. An impeller casting mold, comprising:

the device comprises a lower die (1), wherein a groove (11) is formed in the upper part of the lower die (1), and a cavity (12) is formed in the groove (11);

a plurality of blade blocks (2) are arranged in the cavity (12) in a circular ring shape around the center of the cavity, an impeller blade gap is formed between every two adjacent blade blocks (2), each blade block (2) comprises a blade block body (21), each blade block body (21) is arranged to be long-strip-shaped, the whole blade block body is of a twisted structure, an upper body (22) and a lower body (23) are fixedly arranged at two ends of each blade block body (21) respectively, and the upper body (22) and the lower body (23) are both arc-shaped;

the upper die (3) is buckled on the upper part of the lower die (1), a pouring gate (31) is arranged at the center of the upper die (3), and the pouring gate (31) is communicated with the cavity (12).

2. The impeller casting mold according to claim 1, wherein an arc-shaped groove (221) is formed in one side of the outer edge of the upper body (22), and the arc-shaped grooves (221) of the plurality of upper bodies (22) are spliced to form an annular groove.

3. An impeller casting mould according to claim 1, characterized in that the impeller blocks (2) are arranged in groups in the vertical direction.

4. The impeller casting mold according to claim 1, characterized in that a plurality of through holes (13) are formed on the circumferential surface of the groove (11).

5. An impeller casting mould according to claim 1, characterized in that the circumferential surfaces of the lower mould (1) and the upper mould (3) are provided with a plurality of cylinders (4) in a threaded manner.

6. An impeller casting mould according to claim 1, characterized in that the arc length of the upper body (22) is greater than the arc length of the upper end of the vane block body (21).