Automatic glue metering device of plastic packaging product compounding machine

The utility model relates to the technical field of packaging engineering, in particular to an automatic glue metering device of a plastic packaging product compounding machine, which comprises a control console, a communicating pipe is communicated with the right end of the control console, an injection pipe is communicated with the tail end of the communicating pipe, and a vibration heating device is sleeved on the injection pipe; the lower end of the injection pipe is fixedly connected with a corrugated pipe, the lower end face of the corrugated pipe is fixedly connected with a connecting table, and the connecting table is sleeved with a conveniently-disassembled device in a threaded mode. The glue injection device has the beneficial effects that the glue injection device is provided with the vibration heating device, so that the glue cannot be caked to cause blockage by heating the injection pipe, meanwhile, when bubbles exist in the glue, the bubbles are separated from the interior of the glue through vi