With the rapid rise of new energy vehicles, the lithium battery industry has also ushered in explosive growth. The production process of lithium batteries is relatively complicated, and there are differences in the production process of different battery types, but the manufacturing process is roughly the same, which are the front process (electrode production), the middle process (cell production) and the back process ( chemical composition and battery assembly).
Lithium battery is a power source with high energy density, and its production technology is gradually developing and maturing. There are some safety hazards in the production process of lithium batteries, such as: high temperature, high pressure, flammability, explosion, etc. Therefore, in the production process of batteries, the accuracy, stability and automation of related equipment are extremely high Require.
Safety protection in the liquid injection link
Lithium battery injection is an important link in the production of lithium-ion batteries, involving multiple production processes such as injection machines, diaphragms, pole pieces, and electrolytes. In this process, there are naturally many potential risks, such as the misoperation of the operator on the battery liquid injection machine, or the problem of the control system of the liquid injection machine itself, which leads to mechanical risks in the motor and cylinder, etc.
Let me introduce how Pilz helps customers realize the safety protection of liquid injection machines.
As shown in the figure above, a liquid injection machine in the middle process has about 40 safety doors, and each safety door must realize safety interlock monitoring and locking functions
In the solution of Pilz, combined with the main and auxiliary door structure on the existing side-by-side door, the following design is carried out:
One: Using a safety interlock switch of the PSEN me5 series with locking function on the main door
Second: Use PSEN me4 series safety interlock switches without locking function on the auxiliary door
Limited by the mechanical structure, the auxiliary door must be closed before the main door to close normally. If the main door is closed first, the tongue of the auxiliary door will be blocked, causing the auxiliary door to fail to close normally.
Only one set of safety interlock switch with locking function and one set of safety interlock switch without locking function are needed to realize the safety interlock and locking functions, which saves cost while achieving safety.
Powerful control system provides safety protection for injection
The safety control system of liquid injection equipment can not be ignored, Pilz PNOZ multi configurable safety controller is a good choice, its application is very flexible, whether it is simple small equipment (such as testing machine), or complex, with several For medium and large-scale equipment (such as liquid injection machines, module assembly lines, etc.) that require ten safety functions, PNOZ multi can meet the needs of customers through the flexible combination of expansion modules according to the actual needs of different equipment.
With the help of the graphical software tool PNOZmulti Configurator, even novices who have never programmed before can very quickly and easily create a safety program for a plant. In addition, a wide range of fieldbus and communication modules can provide the ability to interface with the host computer.
Pilz’s safety solutions are widely used in various fields of mechanical engineering, such as new energy, automobiles, robot applications, wind power and railway technology.