Automated beverage preparation apparatus capable of excluding unqualified materials when making beverages

A material dispensing device (400), comprising:

• a target nozzle (150), arranged to operably dispense a target material to a target container (190);
• a pump (110), coupled between an outlet connector (182) of a material container (180) and the target nozzle (150), and arranged to operably extract the target material from the material container (180) and to operably push the target material to flow toward the target nozzle (150);
• a damper device (120), coupled between the outlet connector (182) and the target nozzle (150), and arranged to operably buffer the target material flowing through the damper device (120);
• a material drainage port (404);
• a flow direction switch device (460), comprising:
• an input terminal, arranged to operably receive the target material;
• a first output terminal, coupled with the target nozzle (150);
• and
• a second output terminal, coupled with the material drainage port (404);
• a flowmeter (130), arranged to operably measure a flow of the target material to be transmitted to the flow direction switch device (460);
• and
• a control circuit (480), coupled with the pump (110), the flowmeter (130), and the flow direction switch device (460), and arranged to operably control the pump (110) and the flow direction switch device (460);
• wherein the control circuit (480) comprises:
• a timer (1082), arranged to operably record a duration of time for the pump (110) outputting the target material, a duration of time for the damper device (120) outputting the target material, a duration of time for the flowmeter (130) outputting the target material, or a duration of time for the flow direction switch device (460) outputting the target material to the material drainage port (404), and to operably generate a corresponding time-length value;
• wherein when the material dispensing device (400) needs to output the target material to the target container (190), the control circuit (480) presumes that quality of a portion or all of the target material currently inside the material dispensing device (400) is unacceptable, and deems a portion or all of the target material currently inside the material dispensing device (400) as unqualified material, and then the control circuit (480) controls the flow direction switch device (460) to block the first output terminal and to guide the unqualified material inside the material dispensing device (400) to flow toward the material drainage port (404) through the second output terminal, so as to prevent the target nozzle (150) from dispensing the unqualified material into the target container (190), and the control circuit (480) also controls the pump (110) to operate, so that newly extracted target material is transported from the outlet connector (182) toward the flow direction switch device (460);
• wherein with continuous operation of the pump (110), the unqualified material inside the material dispensing device (400) can be pushed to flow forward and gradually discharged to outside through the flow direction switch device (460) and the material drainage port (404), while the newly extracted target material enters and gradually fills a material transmission channel between the outlet connector (182) and the flow direction switch device (460);
• and
• afterwards, when the time-length value reaches a predetermined value, the control circuit (480) determines that the quality of the target material currently inside the material dispensing device (400) is acceptable, and then controls the flow direction switch device (460) to guide the target material to flow toward the target nozzle (150) through the first output terminal, so as to dispense the target material having acceptable quality into the target container (190) through the target nozzle (150).

A material dispensing device (400), comprising:

• a target nozzle (150), arranged to operably dispense a target material to a target container (190);
• a pump (110), coupled between an outlet connector (182) of a material container (180) and the target nozzle (150), and arranged to operably extract the target material from the material container (180) and to operably push the target material to flow toward the target nozzle (150);
• a first flowmeter (130), arranged to operably measure a flow of the target material to be dispensed to the target container (190) through the target nozzle (150);
• a material drainage port (404);
• a flow direction switch device (460), comprising:
• an input terminal, arranged to operably receive the target material;
• a first output terminal, coupled with the target nozzle (150);
• and
• a second output terminal, coupled with the material drainage port (404);
• and
• a second flowmeter (1190), coupled between the second output terminal of the flow direction switch device (460) and the material drainage port (404), and arranged to operably measure a flow of the target material to be transmitted to the material drainage port (404) to generate a corresponding measurement value;
• a control circuit (480), coupled with the pump (110), the first flowmeter (130), the flow direction switch device (460), and the second flowmeter (1190), and arranged to operably control the pump (110) and the flow direction switch device (460);
• wherein when the material dispensing device (400) needs to output the target material to the target container (190), the control circuit (480) presumes that quality of a portion or all of the target material currently inside the material dispensing device (400) is unacceptable, and deems a portion or all of the target material currently inside the material dispensing device (400) as unqualified material, and then the control circuit (480) controls the flow direction switch device (460) to block the first output terminal and to guide the unqualified material inside the material dispensing device (400) to flow toward the material drainage port (404) through the second output terminal, so as to prevent the target nozzle (150) from dispensing the unqualified material into the target container (190), and the control circuit (480) also controls the pump (110) to operate, so that newly extracted target material is transported from the outlet connector (182) toward the flow direction switch device (460);
• wherein with continuous operation of the pump (110), the unqualified material inside the material dispensing device (400) can be pushed to flow forward and gradually discharged to outside through the flow direction switch device (460) and the material drainage port (404), while the newly extracted target material enters and gradually fills a material transmission channel between the outlet connector (182) and the flow direction switch device (460);
• and
• afterwards, when the measurement value reaches a predetermined threshold, the control circuit (480) determines that the quality of the target material inside the material dispensing device (400) is acceptable, and then controls the flow direction switch device (460) to guide the target material to flow toward the target nozzle (150) through the first output terminal, so as to dispense the target material having acceptable quality into the target container (190) through the target nozzle (150).