Viscous material feeder and viscous material printer

Patent metadata

Field	Value
Publication number	US-9132497-B2
Application number	US-201313829809-A
Country	US
Kind code	B2
Filing date	Mar 14, 2013
Priority date	Oct 26, 2012
Publication date	Sep 15, 2015
Grant date	Sep 15, 2015

Abstract

This viscous material feeder includes a nozzle to discharge a viscous material stored in a storage portion storing the viscous material and a feeding mechanism transferring the viscous material from the storage portion to the nozzle and discharging the viscous material from the nozzle. The nozzle has a bent feed route to guide the viscous material from the storage portion to a tip of the nozzle and is configured to be dividable along the bent feed route.

First claim

What is claimed is:

1. A viscous material feeder comprising:
a nozzle to discharge a viscous material stored in a storage portion storing the viscous material; and
a feeding mechanism transferring the viscous material from the storage portion to the nozzle and discharging the viscous material from the nozzle, wherein the nozzle has a bent feed route to guide the viscous material from the storage portion to a tip of the nozzle and is configured to be dividable along the bent feed route,
the bent feed route of the nozzle includes a straight passage portion formed in a linear manner and continuing from an entrance portion of the bent feed route and an inclined passage portion connected to the straight passage portion and inclined with respect to the straight passage portion,
the inclined passage portion has a circularly cross-sectional surface and a constant flow path width, and linearly extends obliquely downward from a portion connecting to the straight passage portion toward an exit portion of the bent feed route.

2. The viscous material feeder according to claim 1 , wherein
a bent portion of the bent feed route of the nozzle is formed in a smoothly curved shape.

3. The viscous material feeder according to claim 2 , wherein
the straight passage portion extends along a feeding direction of the viscous material fed from the storage portion to the entrance portion.

4. The viscous material feeder according to claim 3 , wherein
the straight passage portion has such a shape that an end portion thereof closer to the entrance portion widens toward the entrance portion.

5. The viscous material feeder according to claim 2 , wherein
the straight passage portion and the inclined passage portion are connected by the bent portion formed in the smoothly curved shape.

6. The viscous material feeder according to claim 2 , wherein
the bent feed route of the nozzle further includes an exit passage portion extending linearly along a discharging direction of the viscous material discharged from the exit portion, and
the inclined passage portion and the exit passage portion are connected by the bent portion formed in the smoothly curved shape.

7. The viscous material feeder according to claim 1 , wherein
the nozzle includes a first member and a second member divided along the bent feed route and a fixing member arranged outside the first member or the second member to attach the divided first and second members to each other.

8. The viscous material feeder according to claim 7 , wherein
each of the first member and the second member has through-holes into which screw members are inserted, and
the fixing member is formed with screw holes into which the screw members passing through the through-holes of each of the first member and the second member are screwed.

9. The viscous material feeder according to claim 8 , wherein
a plurality of the screw holes of the fixing member are so formed in pairs that the screw members are arranged on both sides to sandwich the bent feed route therebetween.

10. The viscous material feeder according to claim 7 , wherein
the first member has a flat outer surface, and
the fixing member has a flat plate shape and is configured to come into surface contact with the flat outer surface of the first member.

11. The viscous material feeder according to claim 7 , wherein
the first member and the second member have flat surface portions arranged in a same plane in a state where the first member and the second member are attached to each other, respectively, and
the nozzle is so configured that mutual positions of the first member and the second member are determined in a state where the flat surface portions of the first member and the second member are brought into contact with a flat reference surface when the divided first and second members are attached to each other by the fixing member.

12. The viscous material feeder according to claim 1 , wherein
the bent feed route is so formed that a bent central axis line passing through the bent feed route leading from the entrance portion to the exit portion at the tip is arranged in a single plane, and
the nozzle is configured to be dividable in half along the bent feed route, using the single plane as a boundary.

13. The viscous material feeder according to claim 1 , further comprising a discharge adapter including a flow path causing an inner portion of the storage portion storing the viscous material and the bent feed route of the nozzle to communicate with each other, wherein
the feeding mechanism is configured to relatively move the discharge adapter and the storage portion to transfer the viscous material stored in the storage portion to the nozzle configured to be dividable through the discharge adapter.

14. The viscous material feeder according to claim 1 , wherein
the viscous material includes one of a cream solder, a conductive paste, and an adhesive for temporarily attaching a chip.

15. A viscous material printer comprising:
a viscous material feed portion including a nozzle to discharge a viscous material stored in a storage portion storing the viscous material and a feeding mechanism transferring the viscous material from the storage portion to the nozzle and discharging the viscous material from the nozzle; and
a squeegee scraping off the viscous material fed by the viscous material feed portion, wherein
the nozzle of the viscous material feed portion has a bent feed route to guide the viscous material from the storage portion to a tip of the nozzle and is configured to be dividable along the bent feed route,
the bent feed route of the nozzle includes a straight passage portion formed in a linear manner and continuing from an entrance portion of the bent feed route and an inclined passage portion connected to the straight passage portion and inclined with respect to the straight passage portion,
the inclined passage portion has a circularly cross-sectional surface and a constant flow path width, and linearly extends obliquely downward from a portion connecting to the straight passage portion toward an exit portion of the bent feed route.

16. The viscous material printer according to claim 15 , wherein
a bent portion of the bent feed route of the nozzle is formed in a smoothly curved shape.

17. The viscous material printer according to claim 15 , wherein
the nozzle includes a first member and a second member divided along the bent feed route and a fixing member arranged outside the first member or the second member to attach the divided first and second members to each other.

18. The viscous material printer according to claim 17 , wherein
each of the first member and the second member has through-holes into which screw members are inserted, and
the fixing member is formed with screw holes into which the screw members passing through the through-holes of each of the first member and the second member are screwed.

19. The viscous material printer according to claim 15 , wherein
the bent feed route is so formed that a bent central axis line passing through the bent feed route leading from the entrance portion to the exit portion at the tip is arranged in a single plane, and
the nozzle is configured to be dividable in half along the bent feed route, using the single plane as a boundary.

Assignees

• Yamaha Motor Co Ltd

Inventors

• Sato Hidetoshi

Classifications

• H05K3/1233

  Methods or means for supplying the conductive material and for forcing it through the screen or stencil · CPC title

• B41F15/40 Primary

  Inking units · CPC title

• H05K2203/0126

  Dispenser, e.g. for solder paste, for supplying conductive paste for screen printing or for filling holes · CPC title

• B23K3/0638 Primary

  for viscous material feeding, e.g. solder paste feeding (B23K3/0623 takes precedence) · CPC title

• H05K3/3484

  Electricity · mapped topic