The function of vacuum cylinder, the difference between air cylinder and vacuum cylinder

The function of vacuum cylinder


Vacuum cylinders provide machine builders with an effective, fast and simple solution for Z-axis automation in vacuum pick and place. Advantages of simple control, automatic height compensation and fewer working parts make robots a leader in the automation industry. Has a precise grip.





Vacuum cylinders offer many benefits, especially in high-speed applications. The vacuum cylinder is used to provide vertical positional movement of the vacuum cup, commonly referred to as z-axis travel. They can often replace pneumatic and electric cylinders and use the existing vacuum source from the cup to power the cylinder. Vacuum cylinders respond quickly. The cylinder has a large stroke, but if the cup seals against the product at any point during the piston's stroke, it will retract immediately, resulting in a cylinder cycle time of a fraction of a second.

Each component of the vacuum system should be sized so that it can handle the appropriate flow rate. If one part of the system restricts traffic, it affects everything downstream from that point. One weak link can have a significant impact. Pipe or hose should be selected so that its rated flow rate is equal to or greater than the rated flow rate of the pump. Note that when vacuum lines or components are connected in parallel, the flows can be added together.















Application of vacuum cylinders in automation equipment


2-axis robots are precisely positioned in the X and Y axes, and by using vacuum cylinders, the Z-axis actuator can be completely eliminated. This saves a lot of money on automated equipment.

Vacuum cylinders utilize vacuum force from a vacuum pump or vacuum venturi (a compressed air powered vacuum "pump"). When vacuum is applied, the cylinder rod extends until the vacuum cup seals against the load to be lifted. After the vacuum seal is completed, the cylinder automatically retracts and holds the product. When the vacuum is closed, for example via a vacuum control valve, the product is released. Now the cycle is complete.

The most significant advantage of the vacuum cylinder is that it does not require any other power, such as pneumatic, electric or mechanical actuators, to expand and contract. It is completely independent of the XY axis operator. The second advantage of the vacuum cylinder is that it includes automatic Z-height adjustment. Anywhere the product is within the cylinder's stroke is the position where the cylinder will stop and immediately retract. These cylinders can also be equipped with sensors to determine internal piston position. This allows the machine controller to confirm the position of the cylinder at any given point, which is important in automated equipment.







The difference between cylinder and vacuum cylinder


The standard cylinder uses the thrust of gas to push the piston to reciprocate in a sealed cylinder, and the piston rod acts as a force to achieve the movement, transfer, and positioning of materials. The vacuum cylinder is two sealed cylinders that form a pressure difference between the inside and outside, squeezing the piston rod to move, and forming a vacuum state through the cooperation of the suction cups, thereby replacing the manual movement of the workpiece;the piston rod of the vacuum cylinder is a hollow rod, and ventilation is required inside the rod. Connect the vacuum generator to generate vacuum to complete the adsorption and movement of materials.





The above is the function of the vacuum cylinder, and the difference between the air cylinder and the vacuum cylinder is introduced. If you want to know more relevant information, please log in to Sunway Pneumatic www.diancifa.cc.