The calender is mounted on a sturdy base frame and moves on two rails by means of four wheels on two axes at the bottom of the frame, two of which have guide flanges. The moving power of the calender body is provided by an AC motor (0.37 kW) controlled by a frequency converter.

The conveyor roller table of the calender is located between the calender and the annealing kiln. The conveyor roller table is equipped with 7 F140 mm conveyor rollers. The drive rollers, which rotate synchronously with the inclined roller table, are driven by an AC motor (0.75 kW) controlled by a frequency converter. All rollers are connected by gears and chains. All drive rollers are coated with ceramic coating, and the first three drive rollers are directly water-cooled, and the rear three rollers are indirectly water-cooled.

By using a lifting device, the bottom frame of the calender roller table can be moved approximately 90 mm in the direction of the glass flow. The angle of the roller table relative to the annealing kiln and the inclined roller table can be adjusted. The four wheels at the bottom of the roller table allow the roller table to move manually on the track, two of which have guide rims.

Depending on the respective regulation requirements of the equipment, the control panel unit is divided into two stations.

The control unit of the calender adopts Siemens S7/300PLC, the operation panel adopts Siemens multi-function color panel, and the drive unit adopts SEW drive. In the operation panel, each drive motor can realize stepless speed regulation, and the speed of each motor can be increased or decreased at the same time, and can also be adjusted individually. For different glass process recipes, the control unit can store at least 50 parameters and call up these parameters at any time according to production needs.

In the service menu of the multifunction panel, the maintenance personnel can modify the geometry of the calender, for example by changing the diameter of the rollers. On the other hand, maintenance personnel can learn a lot of information from this menu, such as the current of all motors, as well as various fault information stored in the menu in text form via a data protocol.

The calender's control panel is connected to the local control via a fieldbus, from which relevant machine information such as speed information, motor current, annealing kiln speed, etc. can be read out. At the same time, the analog output template can also provide an analog signal of 4 ~ 20 mA for the annealing kiln to control the speed of the annealing kiln. The panel is installed near the machine. This stand-alone operator station is equipped with a multi-function panel with machine operating programs and is also equipped with two emergency stop buttons. One button is used to set a fixed speed (e.g., 1 m/min adjustable) and the other button is used to stop the machine.

The calender is the main equipment for the production of ultra-clear photovoltaic glass. Choosing a calender with superior performance and good stability is very important for ultra-clear photovoltaic glass manufacturers. The quality of the calender determines the quality and output of the product, which directly affects the economic benefits of the enterprise.

The above are some knowledge points about calenders, I hope you can learn to understand the relevant knowledge carefully.