Fluid material dispensing apparatus having automatic self-cleaning capability

A fluid material dispensing apparatus (100) for outputting fluid material stored in multiple material containers (130) and capable of conducting an automatic self-cleaning operation, the fluid material dispensing apparatus (100) comprising:

• an outlet connector (110);
• a dual-mode fluid connector (150), detachably connected to a target material container (130) of the multiple material containers (130), and comprising a material tube (322) and a cleaning tube (324);
• a material transmission pipe (152), coupled between the material tube (322) and the outlet connector (110);
• a detergent transmission pipe (154), coupled with the cleaning tube (324);
• a pump (160), coupled between the material transmission pipe (152) and the outlet connector (110);
• a cleaning sink (170), arranged to operably contain a cleaning solution, and comprising a liquid outlet;
• a fluid diverter (190), comprising a liquid input terminal and multiple liquid output terminals, wherein a target output terminal of the multiple liquid output terminals is coupled with the detergent transmission pipe (154);
• and
• a switch (192), coupled between the liquid outlet of the cleaning sink (170) and the liquid input terminal of the fluid diverter (190);
• wherein the automatic self-cleaning operation comprises:
• controlling the switch (192) to conduct the liquid outlet of the cleaning sink (170) and the liquid input terminal of the fluid diverter (190), so that the cleaning solution in the cleaning sink (170) flows into the fluid diverter (190);
• activating the pump (160) to push residual fluid material in the material transmission pipe (152) forward, so that the residual fluid material is discharged into a diversion device (890) through the outlet connector (110);
• and
• utilizing operation of the pump (160) to form a negative pressure in the detergent transmission pipe (152), so that the cleaning solution in the fluid diverter (190) is sucked into the dual-mode fluid connector (150) through the detergent transmission pipe (154) and the cleaning tube (324), and then flows into the material transmission pipe (152) through the material tube (322) of the dual-mode fluid connector (150).