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The difference between the high speed type and the general type punching press machine.

2021-09-13

A high speed punching press machine is one of the important machines in the modern manufacturing industry. The product has the advantages of high production efficiency, high material utilization rate, low processing cost, and good reproduction accuracy, etc..
We will help you to know the special design point about the high speed punching press machine design that the general type doesn't have.


The following will be 2 parts:


The main point about the high speed punching press machine compared to the general type The special design points for high speed punching press machine.


1. The main point about the high speed punching press machine compared to the general type


The high speed punching press machine is widely used in the fields of electronics, communication, motor, household appliances, and automobile. At present, this is the most practical and feasible method to realize the automatic production of high quality or super quality


Pressure, pressure stroke, and pressure velocity are three important indexes to evaluate the performance of high speed punching press machines. This is the different between the high speed punching press machine with general type.


Here, pressure refers to the force acting on the workpiece during stamping forming, stamping stroke refers to the displacement that can be achieved by the.high speed punching press machine, and stamping speed refers to the number of stamping cycles that can be achieved by the high speec punching press machine in a unit time, usually in the number of hits per minute (HPM) as a unit .


It is not difficult to understand that both higher pressure and faster pressure velocity contribute to increased high speed punching press machine productivity For example, greater pressure makes it possible to produce more parts in a single stamping process, which is evident in the relationship between stamping speed and high speed punching press machine production efficiency. At the same time, the long punch stroke is also very important to the high speed punching press machine. For a certain type of workpiece, a longer pressure stroke is needed to complete the pressure forming. For example, a jar may require 10-20 mm of pressure travel, whereas a silicon wafer requires only 1 mm pressure stroke. To sum up, in order to achieve better production efficiency and.wide application in modern industry, it is meaningful to develop high speed punching press machines with high pressure and long stroke.


According to the working principle, the high speed punching press machine can be divided into three types: mechanical, hydraulic, and servo. Considering the poor production flexibility and serious power loss, few new mechanical high speed punching press machines have been developed in recent years.In addition, due to the limitations of servomotors, such as small power capacity and long response time under heavy loads. Hydraulic technology is by far the most feasible method for developing high speed punching press machine with high pressure and long stroke.

2. The special design points for high speed punching press machine
Hydraulic high speed punching press machine usually uses the main control valve to make the piston of the cylinder in a linear reciprocating motion. Research has always focused on improving high speed punching press machine performance, such as increasing punch speed, reducing high speedpunching press machine power loss, and suppressing vibration and noise. There is a method of having a control position set points around the upper and lower dead points. In this way, the opening of the high speed punching press machine main control valve will be relatively large and the piston movement ill be faster, especially in the area near the high speed punching press machine upper and lower dead points, resulting in fast punch speed. In order to reduce the noise and cavitation caused by cutting impact, a pressure-controlled throttle valve is used in the return line. There is also a multi-pressure operating principle, which can control the high speed punching press machine oil pressure based on the pressing stage, thus greatly reducing energy consumption. With a new type of master control valve, the master control valve is a slide valve with mechanical displacement feedback from the piston and is located inside the piston. There is also an electro-hydraulic mixing system for high speed punching press machines. The main control valve of the high speedpunching press machine is a slide valve driven by oil pressure, and the slide valve is controlled by a small piston driven by a servo motor cam system. The system combines strong hydraulic pressure with electronic control accuracy. Essentially, the control valves are servo valves and operate in the middle all the time, resulting in relatively high throttling power losses and a rapid increase in high speed punching press machine oil temperature. Therefore, the servo valve is not suitable for the development of high power high speed punching press machine, which will cause serious high oil temperature problems. In order to solve the problem caused by the servo valve, a two-stage pilot cartridge valve for the main control valve is proposed. In this valve, the two high speed on/off valves first control the reversing valve, and then the reversing valve controls the loading valve. It is hoped to combine the advantages of high speed on/off valve and cartridge valve to meet the requirements of high power high speed punching press machine. However, at such high frequency switching conditions, the cartridge valve's service life will not be long enough.

Please contact us, if you want to know more about the high speed punching press machine, Link Press, Servo Press. We also apply high quality high speed punching press machines

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