High frequency binding profiling technology of piano tuning plate rib wood and its special device

A high-frequency gluing and special-purpose device technology, which is used in wood processing appliances, wood veneer bonding, and wood compression. , The effect of improving the firmness and improving the curing speed

Inactive Publication Date: 2008-07-16
陈新谋
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the complexity of the curved surface of the soundboard after molding, it is difficult to achieve a uniform solidity and uniformity only by pressing the upper mold and shaping the glued surface of the ribs. Therefore, the processing process of high-quality products is long and difficult, and the process of process operation is complicated and lacks specifications. "Experience" has become the one-dimensional guarantee of product quality, which is not in line with the management philosophy of modern enterprises
Steam heating makes the surface of the rubber unevenly heated and cool on the outside. Natural curing not only takes too long, but also forms a soft core that directly affects the quality of the soundboard.

Method used

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  • High frequency binding profiling technology of piano tuning plate rib wood and its special device
  • High frequency binding profiling technology of piano tuning plate rib wood and its special device
  • High frequency binding profiling technology of piano tuning plate rib wood and its special device

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Experimental program
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Embodiment Construction

[0013] The key to the improvement of the traditional process is the introduction of a specially improved high-frequency press to adapt to the new processing technology. The improved process includes the assembly of flat soundboards and pre-set nails, the processing and finalization of rib strips, the preparation of curved soundboard profiling, the glue-in-mold between rib strips and flat soundboards, and the pressurization The process of attaching the mold and heating, gluing, curing and shaping at the same time, the key improvement is that the following process features are formed after the high-frequency press is used in this process:

[0014] ① The evenly distributed independent hydraulic cylinder 5 is used to pressurize and attach the die above the lower master die,

[0015] ②Using high-frequency electric field induction heating to realize medium heating and curing of glue.

[0016] In order to ensure that each rib 2 and the sound board 1 are evenly stressed, the independ...

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Abstract

A high-frequency adhering technology for fixating the shape of the wooden ribs for the sound boards of piano features that a high-frequency press is used to conduct such steps as pressing by the uniformly arranged hydraulic heads, and heating and solidifying in HF electric field induction heating mode. The number and sizes of electrodes on hydraulic heads are matched with that of wooden ribs.

Description

technical field [0001] The present invention is an improvement on the gluing and shaping process of soundboard rib wood, a key part of existing piano products, and a special processing device. Background technique [0002] The gluing and shaping of the ribs of the piano soundboard is a key process related to the quality of the piano. This process is to splice and process the speaker panel of the piano, referred to as the soundboard, into a certain plane geometry, and then press and bond it with the pre-processed ribs to shape it into a designed curved shape. The nails have been preset on the soundboard before pressure bonding, and the nails are on the concave surface of the soundboard after pressure bonding, playing a key role in transmitting the sound waves of the strings. In the existing processing technology, after the assembly of the flat soundboard and the presetting of nails, the processing and finalization of the rib strips, and the preparation of the profile of the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B27D1/08B27M1/02H05B6/02
Inventor 陈新谋陈刚
Owner 陈新谋
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