Compression device for bonding for soundboard frame of piano

Abstract

The invention discloses a compression device for bonding for a soundboard frame of a piano. The compression device for bonding for the soundboard frame of the piano comprises a rectangular top plate, wherein self-locking universal wheels are rotationally installed at the four corners of the lower end surface of the rectangular top plate through telescopic adjustment support legs separately; a cylinder is fixedly installed at the middle part of the lower end surface of the rectangular top plate through a bolt; a circular rod is welded to the lower end of a piston rod of the cylinder; the lower end of the circular rod is welded to the middle part of the upper end surface of a rectangular transversal plate; a pressure sensor is installed at the middle part of the circular rod; an extrusion plate is installed below the rectangular transversal plate through springs; a telescopic pipe is arranged outside each spring in a sleeving mode; and the upper end and the lower end of each telescopic pipe are detachably connected with the lower end surface of the rectangular transversal plate and the upper end surface of the extrusion plate separately. According to the scheme, the soundboard frame can be compressed in one process, so that high working efficiency is achieved; and the extrusion strength and extrusion time for the soundboard frame can be set according to the actual need, and the pressure of the extrusion plate on the soundboard frame is gradually increased, so that improvement for the extrusion quality for the soundboard frame is benefited, and damage to the soundboard frame is prevented.

Description

technical field [0001] The invention belongs to the technical field of pressing devices, in particular to a pressing device for bonding soundboard frames of pianos. Background technique [0002] An instrument that can emit musical sounds and recreate music art. Human beings express and exchange thoughts and feelings by playing musical instruments. There are different views on the definition of musical instruments in the field of music and in the field of musical instruments. The music industry believes that the sounding apparatus used for music is a musical instrument; the field of musical instruments usually refers to many sounding apparatuses in non-music fields, such as drumming drums in ancient wars, musical instruments beaten in religious prayers, and instruments used in weddings and funerals. The ceremonial signals and signals solicited by vendors are also regarded as musical instruments, and even some production labor tools and daily utensils, such as bows, saws, pe...

AI Technical Summary

Problems solved by technology

[0003] The piano has the reputation of the king of musical instruments. During the piano manufacturing process, the soundboard frame needs to be compressed after it is bonded to the resonance plate. The pressing machine is inconvenient to operate and has low work efficiency when pressing, and the traditional pressing device is in rigid contact with the soundboard frame when pressing the soundboard frame, and it is difficult to set the extrusion strength according to actual needs, resulting in the soundboard frame Poor pressing quality can easily lead to damage to the soundboard frame

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