The principle of "vacuum" formation is described above, which means that we can create a vacuum artificially. So, how can we apply vacuum technology? What value can be created for mankind?
By using the differential pressure between atmospheric pressure and vacuum pressure to adsorb objects and achieve actions such as fixing or supporting, vacuum technology can be applied to industrial production to improve operational efficiency.
The device to create a vacuum, called vacuum generator. The principle of the vacuum generator is to use the nozzle to spray compressed air at high speed to form a jet flow at the nozzle outlet to produce an entrainment flow. In the entrainment flow effect, the air around the nozzle outlet is continuously drawn away, so that the pressure in the adsorption chamber drops to below atmospheric pressure, forming a certain vacuum or negative pressure.
Vacuum generator, is an efficient, clean, economical and compact vacuum component that uses a positive pressure air source to generate negative pressure, which makes it easy and convenient to obtain negative pressure where compressed air is available, or where both positive and negative pressure are needed in a pneumatic system.
Feature 1: Example of automated handling
The vacuum, which can easily realize material gripping, forms all kinds of automated solutions to replace manual labor in material handling, and liberates human beings from heavy industrial production!
Vacuum components use vacuum pressure as the power source to achieve the gripping of various materials through vacuum adsorption action. As a semi-automatic and fully automatic solution to replace manual labor in material handling, they have been widely used in electronics, semiconductor component assembly, automobile assembly, automatic handling machinery, light industry machinery, food machinery, medical machinery, printing machinery, plastic product machinery, packaging machinery, forging machinery, robotics and many other areas.
Figure 2: Vacuum generator (size equivalent to a fingertip)
Figure 3: Vacuum pump (size equivalent to car motor)
There are two types of vacuum generating devices, vacuum pumps and vacuum generators, depending on the size of the generated vacuum flow.
The vacuum pump formed negative pressure at the inlet, outlet to the atmosphere, and the pressure at both ends is very large. Obviously, the vacuum flow generated is much larger.
The vacuum generator is a pneumatic component that uses the flow of compressed air to form a certain vacuum degree. Compared with the vacuum pump, it has a simple structure, small volume, light quality, low price, easy installation, easy compounding with supporting parts, quick generation and lifting of vacuum, suitable for intermittent work with little flow, and suitable for decentralized use.
01 Vacuum Generator
The vacuum generator is suitable for workpieces with smooth and flat surfaces and dense and impermeable materials, such as glass, steel plates, refractory bricks, etc.
Figure 4: Subway windshield assembly
Figure 5: Refractory brick off the assembly line
Figure 6: Laser cutting machine steel plate feeding
02 Vacuum Pumps
Vacuum pump, not only can produce vacuum, and can continue to maintain a certain degree of vacuum with a large flow, to overcome a certain permeability of the surface of the workpiece, generate a certain vacuum degree to adsorb materials to be handled, such as: cartons, bags, packaging film, etc.
Figure 7: Beer packing boxes off-line stacking
Figure 8: Powder pack on-line feeding
Figure 9: Product off-line stacking
With unique special technology, vacuum handling products can even be used to handle special materials such as raw rubber blocks (uneven and unusually hard surfaces), airport luggage (relatively large air permeability), etc..
Figure 10: Rubber raw rubber block on-line feeding
Figure 11: Airport Logistics Baggage Sorting
Now it seems that vacuum is widely used in the field of material handling and conveying, isn't it? At this point, you may have questions again: How to calculate the lifting force when handling products by vacuum? How to choose the vacuum cup?