Abstract: A clamping and conveying device for a material bag filling system is provided. Through displacement of X-axis rails and a Z-axis rail and rotation of rotating arms, grippers can be rotated and inserted into a filling tube portion of a material bag. Cantilevers can be moved away from each other for the filling tube portion to be stretched. Through the rotation and return of the rotating arms, the displacement of the cantilevers and the clamping action of the grippers, the filling tube portion is clamped stably. The cantilevers are displaced to the bottom of the material filling device by the Z-axis rail and the X-axis rails. The filling tube of the material filling device is displaced to enter the material bag for blowing air and filling the material. Through a conveyor belt, the material bag with the filled material is conveyed to a sealing device for sealing.

Abstract: A bag clamping device for a material bag filling system is provided. A filling tube portion of a material bag can be blown to be in an upright state from a collapsed state through displacement and lift of an X-axis rail, a Y-axis rail and a Z-axis rail and blow of a pair of blowers. A pair of electric clamps is configured to clamp the filling tube portion. A pair of cantilevers is displaced to the bottom of a material filling device. The filling tube of the material filling device is displaced in a Z direction to enter the material bag for blowing air and filling the material. Through a conveyor belt displaced at the bottom in an X direction to carry the material bag with the filled material to a sealing device for sealing, so as to complete the packaging.

Abstract: A material bag includes a bag body and a sleeve on the bag body. A periphery of an opening of the sleeve is provided with a plurality of flexible tabs. An interval is defined between every two of the tabs. The tabs are separated from each other by the interval and connected to the periphery of the opening of the sleeve, so they can be independently flipped to form force-bearing faces to be clamped by a clamping device. When the folded material bag is used for powder/particle material packaging, the clamping device will act on the tabs for clamping the sleeve of the material bag. The clamping device can complete the transfer of the material bag and the connection between the sleeve of the material bag and a filling cylinder.