Mounting head cleaning device and mounting head cleaning method

Patent metadata

Field	Value
Publication number	US-10226798-B2
Application number	US-201415322661-A
Country	US
Kind code	B2
Filing date	Jul 3, 2014
Priority date	Jul 3, 2014
Publication date	Mar 12, 2019
Grant date	Mar 12, 2019

Abstract

A mounting head cleaning device is provided with a cleaning fluid supply device which supplies a cleaning fluid which is formed of positive pressure air or an oil mist to an air passage, and a control device which controls operations of a lifting and lowering mechanism and operations of a rotation mechanism, such that a nozzle shaft is lifted and lowered, and the nozzle shaft is rotated around an axial line in synchronization with a lifting and lowering operation of the nozzle shaft in a cleaning process which uses the cleaning fluid supply device.

First claim

The invention claimed is:

1. A mounting head cleaning device which targets a mounting head which is provided with a suction nozzle which sucks a component using negative pressure air which is supplied from a negative pressure air supply device via an air passage, and a nozzle shaft which holds the suction nozzle in a detachable manner and which is held to be capable of being lifted and lowered by a lifting and lowering mechanism and to be capable of being rotated by a rotation mechanism, and cleans the air passage which is formed in an inner portion of the mounting head, the mounting head cleaning device comprising:
a cleaning fluid supply device which supplies a cleaning fluid which is formed of an oil mist to the air passage; and
a control device which controls operations of the lifting and lowering mechanism and operations of the rotation mechanism such that the nozzle shaft is lifted and lowered and the nozzle shaft rotates around an axial line in synchronization with a lifting and lowering operation of the nozzle shaft in a cleaning process which uses the cleaning fluid supply device,
wherein in an idling step of the cleaning process, in which the nozzle shaft is lifted and lowered in a state in which a flow of the cleaning fluid in the air passage is blocked, the control device causes the nozzle shaft to rotate around the axial line in synchronization with the lifting and lowering operation of the nozzle shaft.

2. The mounting head cleaning device according to claim 1 ,
wherein the control device causes the nozzle shaft to rotate around the axial line in synchronization with the lifting and lowering operation of the nozzle shaft in a cleaning step, of the cleaning process, in which the cleaning fluid, which is supplied to the air passage by the cleaning fluid supply device, is ejected from an opening end of the air passage.

3. The mounting head cleaning device according to claim 1 ,
wherein in an air blasting step, of the cleaning process, in which positive pressure air is supplied to the air passage to remove oil which remains in the air passage, the control device causes the nozzle shaft to rotate around the axial line in synchronization with the lifting and lowering operation of the nozzle shaft.

4. The mounting head cleaning device according to claim 1 ,
wherein a dummy nozzle which blocks the air passage is mounted on the nozzle shaft instead of the suction nozzle, and
wherein when the negative pressure air is being supplied to the air passage or when positive pressure air is being supplied to the air passage, the control device causes the nozzle shaft to rotate around the axial line in synchronization with the lifting and lowering operation of the nozzle shaft.

5. The mounting head cleaning device according to claim 1 ,
wherein the mounting head is provided with a valve which is capable of switching between supplying and blocking of the negative pressure air to the nozzle shaft, and
wherein when the cleaning fluid is being supplied to the air passage in the cleaning process, the control device raises and lowers a pressure which acts on the air passage by performing switching of the valve over a plurality of times.

6. The mounting head cleaning device according to claim 1 ,
wherein in a case in which the nozzle shaft is lifted and lowered over a plurality of times, a rotational angle of the nozzle shaft in a single lifting and lowering operation is set such that an indexed angle at a time of starting of lowering of the nozzle shaft is different between consecutive lifting and lowering operations, and
wherein the control device controls operations of the lifting and lowering mechanism and operations of the rotation mechanism based on the rotational angle of the nozzle shaft which is set.

7. The mounting head cleaning device according to claim 1 ,
wherein in a case in which the control device causes the nozzle shaft to rotate around the axial line in synchronization with the lifting and lowering operation of the nozzle shaft, the control device controls the operations of the lifting and lowering mechanism and the operations of the rotation mechanism such that the rotational angle of the nozzle shaft in a single lifting and lowering operation is greater than or equal to 360°.

Assignees

• Fuji Corp

Inventors

• Komiyama Nobuhisa
• Hoshikawa Kazumi

Classifications

• B08B9/0328

  by purging the pipe with a gas or a mixture of gas and liquid · CPC title

• H05K13/0895

  Maintenance systems or processes, e.g. indicating need for maintenance · CPC title

• H05K13/0409 Primary

  Sucking devices · CPC title

• H05K13/0408

  Incorporating a pick-up tool · CPC title

• H05K13/0404

  Pick-and-place heads or apparatus, e.g. with jaws · CPC title