CN212945301U

CN212945301U - Annular casting pouring gate system

Info

Publication number: CN212945301U
Application number: CN202021359225.3U
Authority: CN
Inventors: 李辉波; 彭银清
Original assignee: Sichuan Tianqi Yongda Machinery Manufacturing Co ltd
Current assignee: Shandong Jincai Trading Co ltd
Priority date: 2020-07-10
Filing date: 2020-07-10
Publication date: 2021-04-13
Anticipated expiration: 2030-07-10

Abstract

The utility model discloses an annular casting sprue system, which comprises a sprue, a first sprue, a second sprue and an inner sprue respectively arranged on the inner side of the cavity; the sprue and the first sprue The runner is arranged on one side of the center of the cavity, the two ends of the first runner are respectively provided with filters, the two second runners are symmetrically arranged on both sides of the sprue, and the filters are respectively connected with the second runners on both sides. The runners are connected by ceramic pipes, a plurality of inner runners are respectively arranged on the second runner, and the inner runners are evenly arranged on the second runner. The sprue system can smoothly flow into the casting cavity by rationally setting the sprue structure and layout, reducing the impact of the molten metal on the cavity and core of the forming mold during pouring, and preventing eddy current and turbulent flow. It can avoid the problems such as secondary oxidation and inclusion caused by liquid metal entrainment, thereby effectively avoiding the occurrence of defects such as slag holes, porosity and shrinkage holes in the casting, and effectively improving the quality of the casting products.

Description

Annular casting pouring gate system

Technical Field

The utility model relates to a casting technical field, in particular to annular foundry goods pouring runner system.

Background

The casting is a method of pouring molten metal into a casting cavity adapted to the shape of a part, and obtaining the part or a blank after the molten metal is cooled and solidified. Common defects in castings are slag holes, air holes, sand holes, cold shut and the like. The filter is often adopted in the casting production to filter and purify the molten metal so as to effectively filter and remove slag in the molten metal, simplify a pouring system, prevent the defect of slag holes, improve the mechanical property of the casting and reduce the machining allowance of the casting.

The existing annular casting pouring system generally comprises a pouring cup, a sprue, a cross runner and an ingate, and because the arrangement of the sprue is unreasonable, molten metal can generate turbulence and other phenomena in the pouring process, so that casting defects are caused, and the product quality and the qualification rate are influenced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the above-mentioned technical problem that current the gating system exists, provide an annular casting pouring runner system.

In order to solve the technical problem, the utility model discloses a technical scheme as follows:

the annular casting pouring runner system comprises a sprue, a first cross runner, a second cross runner and an inner runner which are respectively arranged on the inner side of a cavity; the sprue and the first cross gate are arranged on one side of the center of the cavity, two ends of the first cross gate are respectively provided with a filter, two second cross gates are symmetrically arranged on two sides of the sprue, the filters are respectively connected with the second cross gates on two sides through ceramic tubes, the second cross gates are respectively provided with a plurality of ingates, and the ingates are uniformly distributed on the second cross gates.

Further, the second horizontal pouring channel is of an arc-shaped structure, and the ingates on the second horizontal pouring channel are symmetrically arranged relative to the straight pouring channel.

Furthermore, the ingate is obliquely arranged on the second cross gate towards one side direction, and the included angle between the ingate and the tangent line of the ingate at the corresponding position on the second cross gate is the same.

Furthermore, the filters are respectively connected with one end part of the second cross pouring channel, and the ingates are respectively arranged towards the direction of one end of the second cross pouring channel connected with the filters in an inclined mode.

Further, the ingate is arranged on the cavity forming die.

Further, the filters are respectively arranged below two ends of the first cross pouring channel.

The utility model discloses water the system and water structure and overall arrangement through reasonable setting, the molten metal can flow in the foundry goods die cavity steadily, reduces the molten metal when the pouring to die cavity in the moulded die, the impact of core, can prevent the production of vortex, turbulent flow, avoids the molten metal to roll up gas and causes secondary oxidation to mix with the scheduling problem to effectively avoid the production of defects such as cinder hole, loose, shrinkage cavity in the foundry goods, effectively improved the quality of foundry goods product.

Drawings

Fig. 1 is the structural schematic diagram of the annular casting pouring runner system of the utility model.

Fig. 2 is the pouring gate structure schematic diagram of the annular casting pouring gate system of the utility model.

Fig. 3 is a front view of the pouring gate structure in the annular casting pouring gate system of the present invention.

In the figure: 101. a sprue channel 102, a first cross channel 103, a second cross channel 104, an inner channel 105, a ceramic tube 106 and a filter;

200. a cavity;

alpha, and the included angle between the inner pouring channel and the tangent line of the inner pouring channel at the corresponding position on the second cross pouring channel.

Detailed Description

The invention will be further described with reference to the accompanying drawings and specific embodiments.

The annular casting pouring runner system shown in FIG. 1 comprises a sprue 101, a first runner 102, a second runner 103 and an ingate 104 which are respectively arranged at the inner side of a cavity; the sprue 101 and the first cross gate 102 are arranged on one side of the center of the cavity, and the first cross gate 102 is arranged along the circumferential chord direction of the cavity; the two ends of the first cross gate 102 are respectively provided with a filter 106, the two second cross gates 102 are symmetrically arranged on two sides of the sprue 101, the filters 106 are respectively connected with the second cross gates 103 on two sides through ceramic tubes 105, the second cross gates 103 are respectively provided with a plurality of ingates 104, and the ingates 104 are uniformly distributed on the second cross gates 103 and are used for communicating the second cross gates 103 with the cavity 200.

Referring to fig. 2 and 3, the second runners 103 in this embodiment are arcuate in configuration along the circumferential direction of the cavity, and the gates 104 of the two second runners 103 are symmetrically disposed with respect to the sprue. The ingate 104 is inclined to one side direction on the second runner 103, and the included angle alpha between the ingate 104 and the tangent line of the ingate at the corresponding position on the second runner is the same. The filters 106 are connected to one end portions of the second runners 103, and the gates 104 are inclined toward one end portions of the second runners connected to the filters. Through the setting to structure between first runner, second runner, the ingate, can make during the metal liquid flows into the die cavity evenly when the pouring, fill the die cavity to can effectively reduce vortex, turbulent flow scheduling problem, have fine effect to the casting moulding quality that improves the foundry goods. Meanwhile, the pouring gate system adopting the structure can be conveniently arranged in the hollow sand box, the whole weight of the whole pouring system can be reduced, and the labor intensity of workers is reduced.

In this embodiment, the ingate 104 is disposed on the cavity forming mold, and the ingate structure is pre-formed on the cavity forming mold, so that the arrangement of the ingate structure in the gating system can be simplified, the manufacturing time of the ingate system structure can be reduced, the cost can be saved, the casting efficiency can be improved, and the labor intensity can be effectively reduced.

The filters 106 are respectively disposed below both ends of the first runner 102, and are used for filtering molten metal slag in the molten metal, and buffering and adjusting the flow rate of the molten metal. The filter may be a ceramic foam filter, a fiber filter, a straight-hole filter, or the like.

The present invention is not limited to the above description and drawings, but should be understood as being illustrative and not restrictive, and the technical features can be replaced and modified without creative efforts by those skilled in the art according to the technical content disclosed, all falling within the scope of the present invention.

Claims

1. The annular casting sprue system is characterized in that: it comprises a sprue, a first runner, a second runner and an inner runner respectively arranged on the inside of the cavity; the sprue and the first runner are The runner is arranged on one side of the center of the cavity, the two ends of the first runner are respectively provided with filters, and the two second runners are symmetrically arranged on both sides of the sprue. The second runners on the side are connected by ceramic pipes, a plurality of inner runners are respectively provided on the second runners, and the inner runners are uniformly arranged on the second runners.

2 . The annular casting sprue system according to claim 1 , wherein the second runner is an arc-shaped structure, and the inner runner on the second runner is symmetrically arranged relative to the sprue. 3 . .

3 . The annular casting sprue system according to claim 1 , wherein the inner runner is inclined to one side on the second runner, and the inner runner corresponds to the second runner. 4 . The angles between the tangents at the locations are the same.

4 . The annular casting sprue system according to claim 3 , wherein the filter is connected to one end of the second runner, and the inner runner faces the second runner and is connected to the second runner respectively. 5 . One end of the filter connection is inclined in the direction.

5. The annular casting sprue system according to claim 1, 2 or 3, wherein the inner runner is arranged on the cavity forming mold.

6 . The annular casting sprue system according to claim 1 , wherein the filters are respectively arranged below both ends of the first runner. 7 .