Automatic Heat Sealing Shrink Packing Machine Auto Sealing and Shrink Tunnel Packing Machine with PLC Shrink Packing Machine,Automatic Heat Sealing Shrink Packing Machine,Side Sealing Shrink Packing Machine,Automatic Side Sealing Shrink Packing Machine Hangzhou Xiaoshan Wanfeng Mechanical & Electrical Equipment Factory , https://www.hfweldingmachinery.com
it is suitable for shrink packing of any items.
It`s formed by four units -- automatic book loading unit, cutting and sealing unit. heat circulating shrink stove and automatic unloading units.
This composition reduces labor cost and raises production efficiency,should be an ideal selection of printing an packing factory.package for book magazine,food and so on.
Development: The early 1980s can be used to achieve computer-controlled electro-hydraulic system of new components, the current application of less methods: incremental digital valve Category: digital flow valve, digital pressure valve, digital directional flow valve Example: Incremental digital flow valve components: stepper motor, ball screw, valve, valve sleeve, stem, sensor, etc. Working principle: After the computer sends a signal, the stepper motor rotation, through the rolling screw into axial displacement, Driven the valve spool movement, first open the non-full-week throttling, the flow rate is small, and then open the full-week throttle, flow, up to 3600l / min. Features: 1. The valve core, valve sleeve, valve stem relative thermal expansion obtained temperature compensation, to maintain constant flow. 2. The valve has no feedback function, but with zero displacement sensor, the end of each control, the valve core can be under its control back to zero, higher repeat accuracy.