CN220943081U

CN220943081U - Sand core with side exhaust structure

Info

Publication number: CN220943081U
Application number: CN202321824789.3U
Authority: CN
Inventors: 汪丽杰
Original assignee: Huadong Teksid Automotive Foundry Co ltd
Current assignee: Huadong Teksid Automotive Foundry Co ltd
Priority date: 2023-07-12
Filing date: 2023-07-12
Publication date: 2024-05-14
Anticipated expiration: 2033-07-12

Abstract

The utility model discloses a sand core with a side exhaust structure, which comprises a sand core body and an exhaust insert arranged on the side surface of the sand core body, wherein solidified gas can circulate through the exhaust insert on the side surface of the sand core, so that the whole sand core is diffused, all the sand cores are solidified, and the problem of local sand loosening is well solved.

Description

Sand core with side exhaust structure

Technical Field

The utility model relates to the technical field of casting of engine cylinder blocks, in particular to a mould sand core for molten iron casting.

Background

In the prior art, a cold core box core making mode is adopted for the core making process of the sand core. Cold box core making refers to a sand core forming method that rapidly hardens sand in a core box by blowing triethylamine gas at room temperature. The core making quality of the cold box is closely related to temperature, humidity, blowing pressure, blowing time and a core box exhaust system. However, in the core making process, because the plane area of the side sand outlet hole is large, an exhaust plug is difficult to install on the die, and triethylamine gas cannot smoothly reach the plane, so that the sand mold cannot be completely hardened, the problems of loose sand and poor forming occur, and the core waste rate is high.

Therefore, a new solution is needed to solve the above-mentioned problems.

Disclosure of utility model

In order to solve the problems generated by the prior art, the utility model provides the sand core with the side exhaust structure, and solves the problem that solidified gas cannot well reach the side forming surface of the sand core.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

A sand core with a side exhaust structure comprises a sand core body and an exhaust insert arranged on the side surface of the sand core body; the exhaust insert is provided with an exhaust channel which is communicated with the cavity in the sand core body; and the outer surface of the exhaust insert is provided with an exhaust plug; the vent plug is in communication with the vent passage.

Further, the exhaust insert is detachably arranged on the side face of the sand core body.

Further, at least three vent plugs are arranged on the vent insert.

The beneficial effects are that: compared with the prior art, the sand core with the side exhaust structure has the advantages that the exhaust insert is arranged on the side face of the sand core, so that solidified gas can circulate through the side face exhaust insert of the sand core, the whole sand core is diffused, all the sand cores are solidified, and the problem of local sand loosening is well solved.

Drawings

FIG. 1 is a top view of a sand core with a side vent structure of the present utility model;

FIG. 2 is a front view of a vent insert;

Fig. 3 is a cross-sectional view taken along the direction A-A in fig. 2.

Detailed Description

The present utility model is further illustrated in the accompanying drawings and detailed description which are to be construed as exemplary only and not limiting the scope of the utility model, since modifications to the utility model in the art will fall within the scope of the utility model which is defined by the appended claims after reading the utility model.

Referring to fig. 1 to 3, the utility model discloses a sand core with a side exhaust structure, which comprises a sand core body 1 and an exhaust insert 2 detachably arranged on the side surface of the sand core body 1. The exhaust insert 2 is provided with an exhaust passage 3 which is communicated with an internal cavity (not shown) of the sand core body. And a vent plug 4 is arranged on the outer surface of the vent insert 2; the vent plug 4 communicates with the vent passage 3. Through the passages from the cavity in the sand core body to the exhaust channel and from the exhaust channel to the exhaust plug, the solidified gas can circulate through the exhaust insert on the side face of the sand core, so that the whole sand core is diffused. In this embodiment, at least three vent plugs 4 are provided on the vent insert 2 to achieve a good vent effect.

Claims

1. The sand core with the side exhaust structure is characterized by comprising a sand core body and an exhaust insert arranged on the side surface of the sand core body; the exhaust insert is provided with an exhaust channel which is communicated with the cavity in the sand core body; and the outer surface of the exhaust insert is provided with an exhaust plug; the vent plug is communicated with the vent channel; the exhaust insert is detachably arranged on the side face of the sand core body.

2. The sand core with side vent structure of claim 1 wherein at least three vent plugs are provided on the vent insert.