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[CN201720932546.X] Noise collecting device for cold heading machine
[CN201720932546.X] A cold heading machine noise collection device Title: A cold heading machine noise collection device Application number: CN201720932546.X Applicant: Mina Application date: 2017-7-28 Patent type: Utility model The utility model discloses a cold heading machine noise collection device, including a support column, the top of the support column is installed with a support plate, the support plate is connected with a muffler box, the outer bottom of the muffler plate, the outer side of the muffler board is connected to the bottom of the support plate through a telescopic rod, the inner bottom of the muffler box is provided with a muffler cotton layer, the inner top of the muffler box is provided with a tapered ring, and the inner wall of the muffler box is provided With a first vacuum layer, a second vacuum layer is provided inside the muffler; the device increases the number of sound reflections through the arrangement of multiple tapered rings, thereby reducing the energy of the sound and achieving a noise reduction effect, through the arrangement of multiple spherical holes, the noise reduction effect of the silencer plate is better, and the arrangement of the first vacuum layer and the second vacuum layer enables the device to effectively reduce noise.
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