Nitrogen gas inflation mechanism for inner hole of casting blank of three-roll planetary mill
A planetary rolling mill and nitrogen technology, applied in metal rolling and other directions, can solve problems such as easy air leakage, achieve the effects of ensuring air pressure, reducing process difficulty, and simple overall structure
Active Publication Date: 2017-07-28
CHONGQING LONGYU PRECISION COPPER TUBE CO LTD
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Problems solved by technology
[0003] In view of the above-mentioned deficiencies in the prior art, the main purpose of the present invention is to solve the problem of easy air leakage when purging the copper tube slab, and introduce a three-roller with better air tightness and air pressure. Nitrogen gas filling process in the inner hole of cast slab in planetary rolling mill
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[0026] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0027] Such as figure 2 , image 3 , Figure 4 , Figure 5 and Figure 6 As shown, a three-roll planetary rolling mill slab inner hole nitrogen inflation mechanism of the present invention includes a core rod 4 to be processed, and a core rod trolley 5 installed on the core rod 4, and the core rod trolley 5 can slide set on the core rod 4, a nitrogen generating device 6 for generating nitrogen is installed above the core rod trolley 5, and a regulator for adjusting the position of the output port is installed on the output interface of the nitrogen generating device 6 Centering device 7, a bearing seat 8 is fixed on the shell of the centering device 7, and a self-aligning bearing 9 is installed on the bearing seat 8, and the output interface is hermetically sealed with the air-blowing sleeve 10 through the self-aligning bearing 9 Connect;...
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The invention discloses a nitrogen gas inflation mechanism for the inner hole of a casting blank of a three-roll planetary mill. The nitrogen gas inflation mechanism comprises a mandrel to be machined, and a mandrel trolley, wherein the mandrel trolley slidably sleeves the mandrel, a nitrogen gas generation device used for generating nitrogen gas is installed above the mandrel trolley, an aligning device used for adjusting the position of an output connector of the nitrogen gas generation device is installed on the output connector, a bearing seat is fixed to a housing of the aligning device, an aligning bearing is installed on the bearing seat, and the output connector is connected with a gas-blowing sleeve in a manner of gas sealing through the aligning bearing; and a gas-blowing rod is further arranged at one side facing the gas-blowing sleeve, a gas inlet of the gas-blowing rod is connected with one end of a rotary joint in a manner of gas sealing through a hose, the other end of the rotary joint is connected and in sealing fixation with the rear end of a limit shaft, and the front end of the limit shaft is communicated and sealed with the mandrel. The nitrogen gas inflation mechanism disclosed by the invention solves the problem of gas leakage during a gas-blowing process, and is convenient to install and connect, and low in overall cost.
Description
technical field [0001] The invention relates to a manufacturing process of a copper pipe, in particular to a nitrogen gas charging mechanism for an inner hole of a three-roller planetary rolling mill billet, and belongs to the technical field of nonferrous metal processing. Background technique [0002] In the processing and production of air conditioners, the performance requirements for the supporting copper pipes are very high, which has a direct impact on the quality of the products. Therefore, when producing copper pipes, it must go through multiple production processes. The purging of the core rod on the inner wall is an important part. Such as figure 1 As shown, at present, when purging the core rod on the inner wall of the copper tube slab, an original limit shaft 1 is placed on the outside of the copper tube, and a ventilation groove 2 is opened on the original limit shaft 1. When purging , it is necessary to open a plurality of ventilation holes 3 on the copper p...
Claims
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IPC IPC(8): B21B9/00
CPCB21B9/00
Inventor 李耿罗海潮王鹏宇张德志朱正斌常俊杰
Owner CHONGQING LONGYU PRECISION COPPER TUBE CO LTD