A Vibration and Noise Reduction Device Applied in Large EVA Foaming Machine

Abstract

The invention discloses a vibration and noise reduction device applied to a large ethylene vinyl acetate (EVA) foaming machine. According to the device, a cylinder and an upper base are connected to form a closed frame through multiple upright posts and multiple nuts; multiple vertical plates are respectively and fixedly connected with the cylinder and the upper seat through first screws; multiple layered plates are connected to the multiple vertical plates through guide flat keys and third screws; a vibration reduction seat is fixed on the vertical plates at the bottoms of the layered plates through second screws; an adjusting screw, a first sizing block, a vibration reduction block and a collision block are sequentially arranged inside the vibration reduction seat from the bottom to top; the layered plates are supported on the collision block; steps are machined on the layered plates; multiple layered vibration reduction seats are connected to the layered plates through fourth screws; an elastic block, a second sizing block and a shaft shoulder screw are sequentially arranged in the layered vibration reduction seats from the bottom to top; a heating plate rail is supported on the shaft shoulder screw. According to the device, the impact strength of the heating plate rail on the layered plates can be reduced, the vibration of the whole machine can be lightened, the noise is reduced, and the fatigue life of the cylinder and the fatigue life of the heating plate rail are finally prolonged.

Description

technical field [0001] The invention belongs to the field of EVA foaming machines, and relates to an improvement of the structure of a large EVA foaming machine, in particular to a vibration and noise reduction device used in a large EVA foaming machine. Background technique [0002] The large-scale EVA foaming machine that is commonly used at present, whether imported or domestic, its layered structure is composed of a vertical vertical plate and a layered plate fixed on it. When the machine is in the mold opening state, due to The horizontal bar of the heating plate will be in direct contact with the layered plate, but the layered plate has no vibration-damping design, so there will be a strong impact between the heating plate and the layered plate, so there will be an impact in this structure Large size, large machine vibration, high noise, and low fatigue life of the heating plate bars. [0003] In addition, the applicant applied for "A Layered Vibration Damping Device ...

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Problems solved by technology

[0002] The large-scale EVA foaming machine that is commonly used at present, whether imported or domestic, its layered structure is composed of a vertical vertical plate and a layered plate fixed on it. When the machine is in the mold opening state, due to The horizontal bar of the heating plate will be in direct contact with the layered plate, but the layered plate has no vibration-damping design, so there will be a strong impact between the heating plate and the layered plate, so there will be an impact in this structure Disadvantages of large size, large machine vibration, high noise, and low fatigue life of heating plate bars

[0003] In addition, the applicant applied for "A Layered Vibration Damping Device Applied to Small EVA Foaming Machine" (Patent No.: 201020265272.1) on July 14, 2010. The layered vibration damping device described in this patent not only The structure is simple and only suitable for small EVA foaming machines with small impact force. Since large EVA foaming machines will generate stronger impact force during operation, large EVA foaming machines are not suitable for this simple structure. vibration device

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