Composite coating valve bag preparation production line and production process

• Main Authors: ZENG HUI, ZHU GUOPING, LYU CAN, LI ZEYANG, XIA CHUNLEI
• Format: Patent
• Language: Chinese; English
• Published: 06.08.2021
• Subjects: MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNERANALOGOUS TO PAPER; MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN AMANNER ANALOGOUS TO PAPER; PERFORMING OPERATIONS; TRANSPORTING; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUSTO PAPER

The invention relates to a composite coating valve bag preparation production line and production process. The composite coating valve bag preparation production line comprises a conveying device and a cutting station, a bag opening station, a bottom sealing station and a collecting station which are sequentially arranged along the conveying device; a bag opening device is arranged at the bag opening station and comprises a bearing table, a bag twisting assembly, an air blowing assembly and a bag clamping assembly; the bearing table is used for bearing a woven bag; the bag twisting assembly can move downwards to be matched with the bearing table to clamp the woven bag, and the bag twisting assembly can horizontally move in a reciprocating mode, so that the upper layer of the woven bag is wrinkled; the air blowing assembly moves downwards to blow the upper layer of a bag opening of the woven bag to be tilted and is matched with the bearing table to clamp the lower layer of the bag opening; and the bag clamping