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Quantitative charging valve for casting

A technology of feeding valve and dosing rod, which is applied to valve details, valve devices, cocks including cut-off devices, etc., can solve the problems of unreasonable structure, quantitative and fixed speed accuracy, and the inability to realize quantitative and constant speed addition, etc., to achieve The effect of improving stability

Inactive Publication Date: 2021-04-16
温州兽班机械科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In actual application, the structure of the valve in the prior art is unreasonable, and quantitative and constant speed addition cannot be realized. Therefore, the valve in the prior art has the technical problem of low quantitative and constant speed accuracy

Method used

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  • Quantitative charging valve for casting
  • Quantitative charging valve for casting
  • Quantitative charging valve for casting

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Embodiment Construction

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0021] see Figure 1-4 , a quantitative feeding valve for casting, including a valve housing 1 and a valve core 2 arranged in the valve housing 1, the valve housing 1 includes a feed port 3 and a discharge port 4, the valve core 2 It includes an inner cavity 5 and a quantitative shaft 6 that is rotatably arranged in the inner cavity 5. The valve core 2 is cylindrical, and the valve core 2 is evenly distributed with quantitative grooves 7, and the quantitative ...

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Abstract

The quantitative feeding valve for casting comprises a valve shell and a valve element arranged in the valve shell, the valve shell comprises a feeding port and a discharging port, the valve element comprises an inner cavity and a quantitative shaft rotationally arranged in the inner cavity, the valve element is cylindrical, quantitative grooves are evenly distributed in the valve element in the circumferential direction of the valve element, and the quantitative grooves are communicated with the inner cavity. Quantitative blocks are arranged in the quantitative grooves and connected into the quantitative grooves in a sliding mode, the volume of the quantitative grooves is adjusted by adjusting the positions of the quantitative blocks in the quantitative grooves, a buffer cavity is formed between the valve shell and the valve element, media discharged by the quantitative grooves enter the buffer cavity, and the discharging port is communicated with the buffer cavity. The quantitative grooves located in the valve element are communicated with the discharging port one by one in the rotating process of the valve element. According to the scheme, in the actual application process, the quantifying grooves can effectively quantify media, and then the valve element has the reasonable rotating speed, so that the flow speed of the media and the adding amount of the media can be effectively controlled.

Description

technical field [0001] The invention relates to the technical field of casting process accessories, in particular to a quantitative feeding valve for casting. Background technique [0002] In the casting of large castings, some heterogeneous nucleation substances need to be added to produce ductile iron and gray iron to increase the crystallization core, optimize the graphite form, and refine the grains. When producing high-quality castings, the addition amount and flow rate of heterogeneous nucleation substances have an important impact on the quality of castings. Therefore, the flow rate and the amount of heterogeneous nucleation substances should be effectively controlled during the addition process. [0003] In the prior art, when adding heterogeneous nucleation substances, the flow rate and flow rate are generally controlled by valves. In actual application, the structure of the valve in the prior art is unreasonable, and it is impossible to realize quantitative and c...

Claims

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Application Information

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IPC IPC(8): F16K5/04F16K5/08F16K35/00
Inventor 石贞
Owner 温州兽班机械科技有限公司
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