A pressure-limiting manual press

Abstract

The invention specifically relates to a manual press and aims to provide a pressure-limiting manual press capable of limiting the upper limit of pressure. According to the technical scheme adopted bythe invention, the pressure-limiting manual press comprises a base and a pressing device. The pressing device is erected above the base through a reversed L-shaped supporting arm; the upper end of a connecting shaft penetrates out of an end cover and is connected to an adjusting hand wheel, and a pressure-limiting mechanism is arranged on the connecting shaft; and the connecting shaft is composedof an upper half shaft and a lower half shaft, and the pressure-limiting mechanism comprises a plurality of vertical key grooves which are uniformly formed in the circumference of the lower end of theupper half shaft, wherein the sections of the key grooves are in isosceles trapezoid shapes. The pressure upper limit of the manual press can be limited to avoid the situation that the pressure is excessively large.

Description

technical field [0001] The invention relates to the technical field of presses, in particular to a manual press. Background technique [0002] A press is a widely used forming machine that shapes raw materials by applying strong pressure to metal blanks, plastic powder, ceramic powder, etc. The manual press is a kind of press, which provides extrusion power through direct manual operation by the staff. It has the advantages of small size, easy to carry and carry, high installation flexibility, and not limited by the installation site. However, the existing manual presses still have certain defects in the process of use: 1. During the forming process of the workpiece, the extrusion force needs to be maintained within a certain range. If the pressure is too large, it will easily damage the structure of the workpiece itself, resulting in The problem of poor strength. However, the existing manual presses do not have the ability to limit pressure, and the pressure is mainly jud...

AI Technical Summary

Problems solved by technology

However, the existing manual presses still have certain defects in the process of use: 1. During the forming process of the workpiece, the extrusion force needs to be maintained within a certain range. If the pressure is too large, it will easily damage the structure of the workpiece itself, resulting in The problem of poor strength

However, the existing manual presses do not have the ability to limit pressure, and the pressure is mainly judged in real time by the staff observing the pressure gauge, which can easily lead to mistakes, cause quality problems, and increase the reject rate of products

2. The height of the existing manual press cannot be adjusted. For operators of different heights, due to the long operating time of the manual press, if the height of the press does not match the user, it will seriously affect the use Comfort

3. The pressure head of the existing manual press can only be adjusted in the height direction by lifting and lowering, but cannot be adjusted in the front and rear directions as a whole. Therefore, when the workpiece is wide, only the rear side of the workpiece can be processed. Inability to process the front and center of the workpiece, resulting in poor versatility

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