An acoustic material cutting device

Abstract

The invention relates to a material cutting device, in particular to an acoustic material cutting device which comprises a manual rotating device, a cutting device part, a material clamping device, a supporting device and two hydraulic jack devices, wherein the manual rotating device is fixed to the cutting device part; the material clamping device is fixed to the middle position of the supporting device; the hydraulic jack devices are arranged at the two ends of the material clamping device and are fixed to the supporting device; the cutting device part is arranged at the lower end of the manual rotating device; a cutting head in the cutting device part is in contact with the upper surface of an acoustic material clamped by the material clamping device, and can move up and down along with the movement of the hydraulic jack devices. The acoustic material cutting device adopts an electric heating method to cut a material, so that the material cutting efficiency is high, height and cutting speed of the cutting speed can be manually controlled, cutting flexibility is guaranteed, and the material cutting time can be greatly reduced.

Description

technical field [0001] The invention relates to a material cutting device, in particular to an acoustic material cutting device. Background technique [0002] In the field of acoustic packaging design and noise control of automotive vibration and noise, it is necessary to know the acoustic properties of various materials in order to select the acoustic materials required for automotive acoustic packaging design and noise control to effectively control automotive noise. This requires the use of the standing wave tube method to measure the performance of various acoustic materials. When the standing wave tube method is used to test the performance of acoustic materials, the standing wave tube has strict requirements on the shape and size of the tested sample. However, different standing wave tube test systems have different requirements for the diameter of the sample. Traditionally, in order to obtain the standard sample required for the test, a cutting device that can change ...

AI Technical Summary

Problems solved by technology

The device described in this patent can accurately and conveniently cut out acoustic material samples of predetermined specifications, but the device has the disadvantage of low cutting efficiency; Acoustic material sample cutting machine" (Patent No. 201510232747.4)

The device described in this patent uses two different methods of motor drive and manual rotation to cut materials, and the cutting efficiency has been improved. At that time, there were shortcomings of uneven cutting and low cutting safety performance; the Chinese patent publication number is CN203672650U, and the publication date is 2014 On June 25, 2014, the name of the invention was "Electric Sampling Tool for Acoustic Materials" (Patent No. 201420021813.4)

The cutting device described in the patent is driven by a motor, and two different types of cutting blade devices are hung on the beam to cut materials of different sizes at the same time, and the cutting efficiency is improved, but the structure of the device is complicated and the cost is high

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