Automatic shrink wrapping machine SH45

buildingglass

The SH45 automatic shrink wrapping machine is a combined machine which, using a single work station, performs the hooding and heat-shrinking operations of the product to be packaged. The SH45 automatic machine uses a reel of shrink film in tubular form equipped with side bellows. In the different versions, up to three film reels can be reached. The film is heat-shrunk on the product by means of a gas-fired ring oven; all functions are controlled by a PLC that manages the automatic and manual operations. The machine cycle can be divided into two main phases. These phases of the cycle are normally carried out during the feeding phase of the new product to be packaged into the machine or in parallel with the common cycle phases, therefore they do not affect the machine cycle time. First phase: the preparation of the hood takes place at the rear of the machine. The reel begins its unwinding until it reaches the size necessary for the pack to be hooded, the height of which is automatically determined by means of a reading system external to the machine itself. The welding and cutting unit prepares the hood just picked up from the reel, welding and subsequent cutting. Once set up, the hood is transported by the mechanical gripping system to the central area of ​​the shrinking arch. Once the hood has the four flaps spread apart, it is brought to the hooding group consisting of four mobile mechanical pliers. Starting from the center of the hood, with an outward movement synchronized with the opening of the crosspieces, the correct rectangle for entering the hood on the product is formed.