Sand ejection nozzle

A sand injection nozzle and sand feeding technology, which is applied in the field of sand injection nozzles, can solve the problems of accelerated sand injection nozzle sealing buffer ring wear, air or sand leakage between the nozzle and the sand injection plate, and reliability decline, and achieves convenient installation and connection. The overall structure Effect of compactness and improved flexibility

A sand injection nozzle and sand feeding technology, which is applied in the field of sand injection nozzles, can solve the problems of accelerated sand injection nozzle sealing buffer ring wear, air or sand leakage between the nozzle and the sand injection plate, and reliability decline, and achieves convenient installation and connection. The overall structure Effect of compactness and improved flexibility

CN109865802APending Publication Date: 2019-06-11江阴市惠尔信精密装备股份有限公司
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  • Sand ejection nozzle
  • Sand ejection nozzle
  • Sand ejection nozzle

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Embodiment Construction

[0040] The specific implementation manners of the present invention will be further described below in conjunction with the drawings and examples. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0041] Such as Figures 1 to 6 Shown is an embodiment of a sand shooting nozzle of the present invention, including a three-way valve body 4 with a sand inlet channel 1, a sand outlet channel 2 and a sand return channel 3, which is arranged inside the three-way valve body 4 and located at the The sand inlet channel 1, the sand outlet channel 2 and the sand return channel 3 intersections are used for the rotary valve core 5 for channel switching. The outlet of the sand outlet channel 2 is connected with a mobile sand outlet pipe assembly 6. The three The valve body 4 is respectively provided with a linear motion actuator 7 and a rotary motion actuator 8, the ...

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Abstract

The invention relates to the technical field of formative technology equipment of precoated sand and discloses a sand ejection nozzle which comprises a three-way valve body equipped with a sand inletchannel, a sand outlet channel and a sand return channel as well as a rotary valve core which is disposed inside the three-way valve body, located at an intersection part of the sand inlet channel, the sand outlet channel and the sand return channel and used for channel rotation, wherein a movable sand outlet pipe assembly is connected to an outlet of the sand outlet channel; a straight-line motion execution element and a rotation motion execution element are disposed on the three-way valve body respectively; the straight-line motion execution element is connected to the movable sand outlet pipe assembly; and the rotary motion execution element is connected to the rotary valve code. The sand ejection nozzle disclosed by the invention has the advantages that the automation degree of precoated sand shaping is increased; and reliability of a sand ejection operation is enhanced.

Description

technical field [0001] The invention relates to the technical field of coated sand molding process equipment, in particular to a sand shooting nozzle. Background technique [0002] The sand shooting nozzle is a kind of process equipment in the coated sand molding equipment, which is a part of the sand shooting system. When the coated sand is molded, under the action of compressed air, the coated sand is ejected from the sand shooting nozzle, passes through the sand shooting plate and enters the cavity of the mold to complete the coated sand molding. [0003] In the prior art, the nozzle used for coated sand molding has a single-channel structure, which mainly has the following problems: [0004] One is that after sand shooting, some molding sand will fall on the mold, which needs to be cleaned manually with a scraper. On the one hand, the degree of automation of manual cleaning is low, and the efficiency and quality of cleaning are also poor. On the other hand, due to the h...

Claims

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Application Information

Patent Timeline
11 Jun 2019
Publication
CN109865802A
IPC
B22C15/24
Inventors
徐惠民