Valve bag opening device

• Main Authors: DING YAN, MAO JUNHAO, DONG QINGSHAN, LIU GUANGLEI, ZHAO WENLONG
• Format: Patent
• Language: Chinese; English
• Published: 14.01.2022
• Subjects: CONVEYING; HANDLING THIN OR FILAMENTARY MATERIAL; MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGINGARTICLES OR MATERIALS; PACKING; PERFORMING OPERATIONS; STORING; TRANSPORTING; UNPACKING

The utility model relates to a valve bag opening supporting device which comprises a device base and an air expansion head, the air expansion head comprises a main body part and an air expansion elastic tire arranged on the periphery of the main body part, an air expansion cavity is formed between the air expansion elastic tire and the main body part, and the main body part is provided with an air channel communicated with the air expansion cavity. The inflatable elastic tire has an inflatable state that the inflatable elastic tire expands outwards in the radial direction after being inflated and also has a deflation state that the inflatable elastic tire shrinks inwards in the radial direction after being deflated; a driving mechanism connected with the air expansion head is arranged on the device base, and the driving mechanism is used for driving the air expansion head to extend into a bag opening of the opened valve bag and can also drive the air expansion head to be pulled out of the bag opening of the v