The invention discloses a film conveying device for bagged preserved plum processing and production. A transmission connection device for mobile phone motherboard processing includes a transmission platform. A mounting and connecting column is arranged on the transmission platform. A linkage plate is arranged on one side of the mounting and connecting column. An inner clamping plate is arranged onone side of the linkage plate. An outer inner clamping plate is arranged on one side of the inner clamping plate. The device is connected to processing equipment by connecting connecting rods and inserting blocks in horizontal and vertical ways, and drives the processing equipment, and so the connection or disassembly of the device and the processing equipment are easier and more convenient, andthe disassembly efficiency is improved. The inserting blocks are directly inserted into clamping grooves in a clamping rotation disc, and so the swing speed of the inserting blocks is more stable anduniform when connecting to the processing equipment and swinging. According to requirements of the size and type of the connected processing equipment, the equipment clamping distance of the inner andouter clamping plates can be freely adjusted so as to ensure that the device can drives different mobile phone motherboard processing equipment and ensure the universality of adaptation. The device is convenient in operation, and the connection of all member is flexible.