What are the functions of the cable measuring instrument?

The outer diameter of cable is an important index that must be detected in time in cable production. It is directly related to the quality of cable and the consumption of materials. At present, on-line caliper is often used to complete the on-line inspection of cables.

Functions of cable caliper:

1. Real time measurement: the measured value is displayed in real time, and the data can be refreshed 1-10 times / second.

2. Industrial control: real-time feedback to realize industrial field closed-loop control.

Out of tolerance alarm: according to the set product related parameters, realize the audible and visual alarm when the measured value of the product is out of tolerance.

3. Data output: the measurement results can be output in real time through analog (voltage or current optional) or digital (RS422 or 485 optional) to realize networking connection of field equipment.

4. Peripheral output: the remote display of data can be realized by connecting a digital tube screen (optional), and the data display and storage can be realized by connecting a PC through RS422 interface (optional).

The laser outer diameter measuring instrument can be used for on-line outer diameter detection of low-temperature rolled pipe, straight seam welded pipe, cold drawn bar, silver bright bar, rubber pipe, plastic pipe, wire, cable and other products.

The outer diameter of the cable mainly depends on the extrusion flow rate of the plastic and the main traction speed of the system. When the system operates stably, the main traction speed reaches the set value, and the outer diameter only depends on the extrusion flow rate of the plastic: when the flow rate increases, the outer diameter increases, whereas the outer diameter decreases. When the system operates at variable speed, the rotation speed of the extruder screw is adjusted to change the plastic flow rate to maintain the wire diameter. The tractor is the opposite.

The measuring instrument uses the PID adjustment function to control the wire diameter. The on-line measuring instrument is used to measure the outer diameter of the product, calculate the deviation between the wire diameter and the set nominal value, and control the screw speed of the extruder or the speed of the tractor through the regulator to make the actual wire diameter as close as possible to the nominal value