Method for managing and device for managing nozzle cleaning period

Patent metadata

Field	Value
Publication number	US-9776221-B2
Application number	US-201314903529-A
Country	US
Kind code	B2
Filing date	Jul 10, 2013
Priority date	Jul 10, 2013
Publication date	Oct 3, 2017
Grant date	Oct 3, 2017

Abstract

A nozzle cleaning period management device is provided with a cleaning device that cleans suction nozzles that are used in order to perform vacuum retention of an electronic component, a flow rate measurement device for measuring a flow rate that flows through the suction nozzles, a reduction amount calculation device for calculating a unit flow rate reduction amount of the flow rate of the suction nozzle per a number of times of mounting of electronic components on the basis of a flow rate difference before and after cleaning, which is measured by the flow rate measurement device, and an estimation device for estimating a cleaning period, which subsequently cleans the suction nozzles, on the basis of the unit flow rate reduction amount, which is calculated by the reduction amount calculation device, and a flow rate after cleaning.

First claim

The invention claimed is:

1. A nozzle cleaning period management device comprising:
a cleaning device that cleans suction nozzles that are used in order to perform vacuum retention of an electronic component;
a flow rate measurement device that measures a flow rate that flows through the suction nozzles;
a reduction amount calculation device that calculates a unit flow rate reduction amount of the flow rate of the suction nozzle per a number of times of mounting of electronic components on the basis of a flow rate difference before and after cleaning, which is measured by the flow rate measurement device; and
an estimation device that estimates a cleaning period, which subsequently cleans the suction nozzles, on the basis of the unit flow rate reduction amount, which is calculated by the reduction amount calculation device, and a flow rate after cleaning.

2. The nozzle cleaning period management device according to claim 1 ,
wherein the estimation device estimates a subsequent cleaning period by subtracting a use limit value flow rate from a flow rate after cleaning, and dividing a subtracted value by the unit flow rate reduction amount.

3. The nozzle cleaning period management device according to claim 1 ,
wherein an identification code, which is read by a code reading device, is applied to outer surfaces of the suction nozzles, and
wherein the cleaning device is configured to also clean the outer surface of the suction nozzles.

4. The nozzle cleaning period management device according to claim 3 ,
wherein the subsequent cleaning period that is estimated by the estimation device is stored for each identification code of the suction nozzles.

5. A nozzle cleaning period management method comprising:
reading an identification code that is applied to suction nozzles;
measuring a flow rate that flows through the suction nozzles before cleaning the suction nozzles;
subsequently cleaning the suction nozzles and measuring a flow rate that flows through the suction nozzles after cleaning;
calculating a unit flow rate reduction amount of the flow rate of the suction nozzle per a number of times of mounting of electronic components on the basis of flow rate differences before and after cleaning; and
estimating the cleaning period, which subsequently cleans the suction nozzles, on the basis of the unit flow rate reduction amount and the flow rate after cleaning.

6. The nozzle cleaning period management method according to claim 5 ,
wherein a subsequent cleaning period is estimated by subtracting a use limit value flow rate from a flow rate after cleaning, and dividing a subtracted value by the unit flow rate reduction amount for each identification code of the suction nozzles.

Assignees

• Fuji Machine Mfg

Inventors

• Hoshikawa Kazumi
• Honda Yoshiyuki
• Komiyama Nobuhisa

Classifications

• Y10T137/0419

  Fluid cleaning or flushing · CPC title

• B08B9/02 Primary

  Cleaning pipes or tubes or systems of pipes or tubes (apparatus for cleaning metal pipes by chemical methods C23G3/04) · CPC title

• Y10T137/4245

  Cleaning or steam sterilizing · CPC title

• H05K13/0408

  Incorporating a pick-up tool · CPC title

• H05K13/0409 Primary

  Sucking devices · CPC title