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What is a Pittsburgh Lock Machine?

The Pittsburgh lock machine is a multi-functional machine type, mainly used for the biting processing of plate connection and circular duct closed connection. It can meet the different shapes of bone types manufactured by air ducts. It has the characteristics of easy installation, beautiful appearance, reasonable mechanical principle, flexible movement, convenient operation and so on, which can meet the different requirements of users.


The Pittsburgh lock machine consists of the following three parts:


1. Forming part


Mainly refers to the host part, the core part is the roll. When there is too much feed between the two pressure rollers or metal blocks, the piston rod of the hydraulic cylinder will be overloaded, the hydraulic pump will stop, the accumulator will buffer the pressure change, the overflow valve will open to return oil, and the piston rod will shift the gap between the pressure rollers is enlarged so that the hard objects pass through the pressure roller, and the system pressure returns to normal, which can protect the pressure roller from damage.


2. Feeding part


The main purpose is to achieve quantitative feeding to ensure that the material enters the roller room evenly. The screw feeding device is driven by an electromagnetic speed-regulating motor, and is rotated by a belt pulley and a worm reducer to force the material to be pressed into the main feed inlet. Due to the constant torque characteristics of the electromagnetic speed-regulating motor, when the pressure of the screw feeder is equal to the amount of material required by the host, a constant supply pressure can be maintained to stabilize the pellet quality. If the feeding amount is too large, the feeding device's electricity will be overloaded, and if the feeding amount is too small, the ball will not be formed. Therefore, skilled operation skills are an important condition to ensure the normal work of the pressure ball.


3. Transmission part


The main drive system is: motor-triangle belt-reducer-open gear-roll. The main engine is powered by an electromagnetic speed regulating motor, which is transmitted to the driving shaft through a pin coupling through a belt pulley and a cylindrical gear reducer. The driving shaft and the driven shaft ensure synchronous operation through open gears. A hydraulic device is installed behind the passive bearing seat. The hydraulic protection device uses a hydraulic pump to drive high-pressure oil into the hydraulic cylinder, causing the piston to produce axial displacement. The front joint of the piston rod rests on the bearing seat to meet the production pressure requirements.

sales@mytmachine.com +86-15951670606
Room 1803, 2nd, 2501 Lane, Guyang North Road, Songjiang District, Shanghai, China