Shaft hammer press for processing two sets of hammers

Abstract

The invention relates to a rotating shaft type hammer head presser for machining two hammer heads. The rotating shaft type hammer head presser comprises a rack, a center shaft, two bottom dies, two left pressing dies, two right pressing dies, two up-and-down squeezing mechanisms and a left-and-right squeezing mechanism; the two bottom dies, the two left pressing dies, the two right pressing dies and the two up-and-down squeezing mechanisms are each arranged in a longitudinal symmetry mode with the center shaft as a center; one bottom die is fixed to the upper end of the center shaft, the up-and-down squeezing mechanisms and the center shaft are relatively fixed and located over the bottom dies, and one left pressing die and the corresponding right pressing die are located at the left upper portion and the right upper portion of the corresponding bottom die respectively; the left-and-right squeezing mechanism for driving the left pressing dies and the right pressing dies to transversely move in the left-and-right direction and the center shaft are relatively fixed; the front end and the back end of the center shaft are installed on the rack in a rotatable mode. The rotating shaft type hammer head presser has the advantages that the two hammer heads can be machined at a time, the production efficiency is high, the structure is simple, operation is convenient, energy resources are saved, the manufacturing cost is low, and the floor area is small; the rotating shaft type hammer head presser belongs to the technical field of piano part manufacturing devices.

Description

technical field [0001] The invention relates to equipment for making piano parts, in particular to a rotary shaft type hammer press machine for processing two sets of hammers. Background technique [0002] Piano hammers are an important part of the piano used to strike the strings, which include hammer cores and felts. The heads of the hammer cores are pointed, and the felt is wrapped around the heads. Hammer cores have a rectangular tail. [0003] Hammers are generally made by the following methods: cutting the left and right sides of a slender wooden workpiece (cube) near the head into a specific shape to obtain a long strip-shaped hammer wood core without cutting the tail; The felt press is fixed at the head of the whole wood core; the wood core and the felt are cut along the cross-section to obtain a complete set of 88 hammers for a piano. [0004] A whole piece of piano hammer has the following characteristics: the cross-sectional shape is symmetrical on the left and...

AI Technical Summary

Problems solved by technology

[0006] Existing hydraulic presses for forming piano hammers have the following disadvantages: 1. One piece of equipment can only process one set of hammers at a time

2. The oil pressure method is used for pressing, and the position of the oil cylinder needs to be fixed with the frame, which cannot be flexibly set

3. Due to the long holding time of the pressing process, if the oil pressure is used to hold the pressure, the oil press must be kept open, which consumes electric energy and increases the production cost

4. The lower mold mechanism and the side mold mechanisms on both sides all use oil cylinders. One piece of equipment is equipped with at least four oil cylinders. The equipment is bulky and occupies a large area

5. The cost of equipment is high

6. Regular maintenance and cleaning of hydraulic pipelines must ensure that there is no oil leakage

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