CN216397909U

CN216397909U - Supercharger shell manufacturing mold

Info

Publication number: CN216397909U
Application number: CN202121713484.6U
Authority: CN
Inventors: 徐惠民; 胡彬; 韩琪
Original assignee: Hex Machinery Taixing Co ltd
Current assignee: Hex Machinery Taixing Co ltd
Priority date: 2021-07-27
Filing date: 2021-07-27
Publication date: 2022-04-29
Anticipated expiration: 2031-07-27

Abstract

The utility model belongs to the technical field of manufacture of a shell of a supercharger, in particular to a mold for manufacturing the shell of the supercharger, which has the characteristic that a pouring system is arranged at the bottom of an upper mold along the circumferential direction; a middle sand box and a cope box are arranged above the upper die plate in a matching way; the lower die is embedded in the lower die plate, a plurality of stand columns are uniformly arranged on the upper surface of the lower die along the circumferential direction, and a lower sand box is arranged above the lower die plate in a matched manner; the pouring system comprises arc-shaped pouring channels which are symmetrically arranged, and a plurality of inner pouring channels are arranged in the arc-shaped pouring channels; the position where the arc-shaped pouring channels are converged is provided with a water filling port. The method has the advantages that the ceramic tube is not needed to be used for injecting molten iron, so that the manufacturing cost of the shell of the supercharger is reduced; and the amount of sand can be saved, the exhaust is smooth, the generation of air holes is reduced, and the casting quality of the shell of the supercharger is improved.

Description

Supercharger shell manufacturing mold

Technical Field

The utility model relates to the technical field of supercharger shell manufacturing, in particular to a manufacturing mold for a supercharger shell.

Background

The turbocharger is actually an air compressor, which increases the air intake by compressing air, and uses the inertia impulse of the exhaust gas from the engine to push the turbine in the turbine chamber, and the turbine drives the coaxial impeller, and the impeller pumps the air from the air filter pipeline to pressurize the air into the cylinder, so the turbocharger housing is very important, and the turbocharger housing is usually formed by casting.

The existing model for manufacturing the shell of the supercharger adopts two boxes for modeling and a large sand core in the middle, and has the following defects: the sand-iron core head with larger size affects the size of the sand box, so that the sand box has larger use amount and more sand use amount, the middle large sand core affects the exhaust and can generate air holes; in the manufacturing process of the shell of the supercharger in the prior art, molten iron is generally poured into the shell from the middle through a ceramic tube, so that the waste of raw materials of the ceramic tube is caused, the material yield is low, and more sand is used to cause resource waste, so a novel shell manufacturing mold of the supercharger is provided to solve the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art, and provides a manufacturing mold for a supercharger shell.

In order to achieve the purpose, the utility model adopts the following technical scheme: the manufacturing mold of the supercharger shell body comprises an upper mold arranged on an upper model plate and a lower mold arranged on a lower model plate; a pouring system is arranged at the bottom of the upper die along the circumferential direction; a middle sand box and a cope box are arranged above the upper die plate in a matching way; the lower mould is embedded in the lower mould plate, a plurality of stand columns are uniformly arranged on the upper surface of the lower mould along the circumferential direction, and a lower sand box is arranged above the lower mould plate in a matched mode.

Preferably: the pouring system comprises arc-shaped pouring channels which are symmetrically arranged, and a plurality of inner pouring channels are arranged in the arc-shaped pouring channels; the position where the arc-shaped pouring channels are converged is provided with a water filling port.

Preferably: the arc-shaped pouring channel and the inner pouring channel are both flat.

Preferably: the upper end surface of the middle sand box is flush with the upper flange of the upper die in height; the upper end surface of the cope flask is higher than the upper end surface of the cope mold.

Preferably: the upper die plate and the lower die plate are respectively provided with three positioning pins which are distributed in a triangular shape.

Compared with the prior art, the utility model has the beneficial effects that: the casting system for casting is arranged at the bottom of the upper die, so that casting is facilitated; therefore, the manufacturing mold is demolded, and after the lower sand box, the middle sand box and the upper sand box are assembled, a circumferential pouring gate is formed and is flat, water enters through the flat inner pouring gate during pouring, so that molten iron can stably enter a cavity, the material obtaining rate is high, and the quality of the shell of the supercharger is greatly improved; the mode of adopting three casees to cooperate not only easy drawing of patterns, can save a big psammitolite moreover, reduce the compound die degree of difficulty, effectively avoid exhausting unsmoothly. The utility model has simple structure, good stability, safety and reliability, does not need to adopt a ceramic tube to inject molten iron, and reduces the manufacturing cost of the shell of the supercharger; and the amount of sand can be saved, the exhaust is smooth, the generation of air holes is reduced, and the casting quality of the shell of the supercharger is improved.

Drawings

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

FIG. 2 is a schematic view showing the combination of the cope flask with the intermediate flask and the cope flask according to the present invention;

FIG. 3 is a schematic view of the lower mold structure of the present invention;

FIG. 4 is a schematic view of the combined structure of the lower mold and the lower case of the present invention;

FIG. 5 is a schematic view of the gating system according to the present invention.

In the figure: 1. an upper die; 1-1, molding a template; 2. a lower die; 2-1, lower model plate; 3. a column; 4. a pouring system; 4-1, arc pouring channel; 4-2, inner pouring channel; 5. a drag flask; 6. a water injection port; 7. an intermediate sand box; 8. a cope flask; 9. and a positioning pin.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Example one

Referring to fig. 1-5, the supercharger housing manufacturing mold comprises an upper mold 1 arranged on an upper mold plate 1-1, and a lower mold 2 arranged on a lower mold plate 2-1; a pouring system 4 is arranged at the bottom of the upper die 1 along the circumferential direction; a middle sand box 7 and a cope box 8 are arranged above the upper mould plate 1-1 in a matching way; the lower mold 2 is embedded in the lower mold plate 2-1, a plurality of upright posts 3 are uniformly arranged on the upper surface of the lower mold 2 along the circumferential direction, and a lower sand box 5 is arranged above the lower mold plate 2-1 in a matching way.

Specifically, the gating system 4 comprises arc-shaped pouring channels 4-1 which are symmetrically arranged, and a plurality of inner pouring channels 4-2 are arranged on the arc-shaped pouring channels 4-1; the position where the arc-shaped pouring channels 4-1 meet is provided with a water filling port 6. Molten iron is injected from the water filling port 6 and sequentially passes through the arc-shaped pouring gate 4-1 and the ingate 4-1, so that the plurality of ingates 4-1 can simultaneously inject the molten iron into a cavity formed by the manufacturing mold, and the molding quality of the shell of the supercharger is better. The arc-shaped pouring gate 4-1 and the inner pouring gate 4-2 are both flat; the flat water inlet mode can ensure that molten iron stably enters the cavity, and the material yield is high.

The upper end surface of the middle sand box 7 is flush with the upper flange of the upper die 1 in height; the upper end face of the cope flask 8 is higher than the upper end face of the cope mold 1. The stable structure of the casting cavity of the shell of the supercharger is ensured. The large sand core is prevented from being formed, the size of the sand box can be reduced, the using amount of sand is reduced, and meanwhile, the phenomenon that the large sand core influences exhaust and generates air holes is effectively avoided.

The upper die plate 1-1 and the lower die plate 2-1 are respectively provided with three positioning pins 9, and the positioning pins 9 are distributed in a triangular shape, so that the positioning is convenient for the upper and lower boxes to position when the boxes are assembled.

The working principle is as follows: when the shell of the supercharger is manufactured, firstly, an upper die of the shell of the supercharger is fixed on an upper model plate, then a middle sand box is installed, and sand is fully paved and tamped in the middle sand box; mounting a cope flask, connecting and fixing the cope flask and the middle flask, and paving and tamping sand in the cope flask; then fixing the lower die in a lower die plate, installing a lower sand box in a matching way, and paving and tamping sand in the lower sand box; then, sequentially demoulding an upper mould and a lower mould of the shell of the supercharger, and after the upper mould and the lower mould are demoulded, assembling a lower sand box, a middle sand box and an upper sand box, wherein at the moment, a pouring cavity of the shell of the supercharger is formed in the sand box, and a pouring channel communicated with the pouring cavity is formed in the sand box; the molten iron directly pours into from the sprue gate to loop through annular runner and ingate, realize that a plurality of ingates pour into the molten iron in to the die cavity simultaneously, make the shaping quality of booster casing better. The matched form of the lower sand box, the middle sand box and the upper sand box is easy to demould, a large sand core can be omitted, the die assembly difficulty is reduced, and unsmooth exhaust is effectively avoided. When the shell of the supercharger is cast, the temperature of molten iron is set to 1320-. The shell of the supercharger manufactured by the model has the characteristics of high strength, easy heat dissipation and low energy consumption.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The manufacturing mold of the shell of the supercharger comprises an upper mold (1) arranged on an upper model plate (1-1) and a lower mold (2) arranged on a lower model plate (2-1); the method is characterized in that: a pouring system (4) is arranged at the bottom of the upper die (1) along the circumferential direction; a middle sand box (7) and a cope box (8) are arranged above the upper mould plate (1-1) in a matching way; the lower mold (2) is embedded in the lower mold plate (2-1), a plurality of upright posts (3) are uniformly arranged on the upper surface of the lower mold (2) along the circumferential direction, and a lower sand box (5) is arranged above the lower mold plate (2-1) in a matching manner.

2. The supercharger housing manufacturing mold according to claim 1, wherein: the pouring system (4) comprises arc-shaped pouring channels (4-1) which are symmetrically arranged, and a plurality of inner pouring channels (4-2) are arranged on the arc-shaped pouring channels (4-1); the position where the arc-shaped pouring channels (4-1) are converged is provided with a water filling port (6).

3. The supercharger housing manufacturing mold according to claim 2, wherein: the arc-shaped pouring channel (4-1) and the inner pouring channel (4-2) are both flat.

4. The supercharger housing manufacturing mold according to claim 1, wherein: the upper end surface of the middle sand box (7) is flush with the upper flange of the upper die (1); the upper end surface of the cope flask (8) is higher than the upper end surface of the cope mold (1).

5. The supercharger housing manufacturing mold according to claim 1, wherein: the upper template (1-1) and the lower template (2-1) are respectively provided with three positioning pins (9), and the positioning pins (9) are distributed in a triangular shape.