A paper bag opening mechanism
A paper bag and time-delay mechanism technology, which is applied in papermaking, bag making, paper/cardboard containers, etc., can solve the problems of sagging on the right side of the paper bag and the wrong position of the indentation, and achieve the effect of avoiding the wrong position of the indentation
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[0035] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0036] refer to figure 1 , is a paper bag expansion mechanism disclosed by the present invention, comprising a frame on which a box body 14 is installed. In this embodiment, a drive shaft 2 that can rotate around its own axis is pierced through the box body 14 , and the drive shaft 2 is connected to the drive source through a universal joint.
[0037] refer to figure 1 A main gear 1 that can rotate around its own axis is installed in the box body 14 , and a bag support assembly that rotates with the main gear 1 is embedded in the main gear 1 . In this embodiment, the bag support assembly includes a joint fork 11 embedded in the main gear 1 and rotates with the main gear 1, and universal joints rotatably mounted on the box body 14 are connected to both sides of the joint fork 11 through cross shafts. Fork 12, universal joint The rotation axis of the fork 12...
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