1. A painting robot system comprising:
a robot including
a plurality of robot arms, each being configured to rotate about a corresponding drive axis, and
a drive shaft member disposed on a distal end robot arm of the plurality of robot arms, the drive shaft member being configured to rotate about a distal end drive axis, the drive shaft member comprising a proximal end portion in which a first bevel gear is fixed, the first bevel gear being in mesh with a second bevel gear on a side of one of the plurality of robot arms so as to change a direction of rotation 90 degrees when power from a motor disposed on a proximal end side of the robot is transmitted to the drive shaft member; and
a spray gun unit disposed on the distal end robot arm, the spray gun unit including:
a support member fixed to the distal end robot arm;
a guide member disposed on the support member;
a plurality of spray guns disposed on the support member, the spray guns including at least one movable spray gun configured to move along the guide member; and
a linkage mechanism connecting between the movable spray gun and the drive shaft member, the linkage mechanism including:
a drive link having an elongated flat plate shape and connected to the drive shaft member of the robot; and
a driven link having an elongated flat plate shape and connected to the drive link and to the moving spray gun;
wherein the driven link is configured to rotate with regard to the drive link and the moving spray gun; and
wherein the linkage mechanism is configured to vary a spacing between at least one pair of adjacent spray guns by rotating the drive shaft member of the robot.
2. The painting robot system according to claim 1, wherein
the spray guns include a fixed spray gun fixed to the support member.
3. The painting robot system according to claim 2, wherein
the fixed spray gun is disposed on a plane perpendicular to the guide member among planes in which the distal end drive axis exists.
4. The painting robot system according to claim 1, wherein
the support member comprises a through hole through which the drive shaft member passes.
5. The painting robot system according to claim 2, wherein
the movable spray gun includes a first movable spray gun disposed on one side of the fixed spray gun and a second movable spray gun disposed on a side opposite to the first movable spray gun relative to the fixed spray gun.
6. The painting robot system according to claim 5, wherein
a spacing between the first movable spray gun and the fixed spray gun and a spacing between the fixed spray gun and the second movable spray gun are identical to each other at all times.
7. The painting robot system according to claim 1, wherein
the spacing between at least one pair of adjacent spray guns of the multiple spray guns is varied according to an amount of rotation of the drive shaft member.
8. The painting robot system according to claim 1, wherein
the plurality of spray guns have a direction of paint application inclined relative to a surface of the support member.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
What is claimed is:
1. A process for preparing monodisperse crosslinked bead polymers comprising
(a) preparing monodisperse monomer droplets in aqueous suspension from a monomer mixture 1 comprising styrene, divinylbenzene, and a free-radical generator,
(b) microencapsulating the resultant monomer droplets,
(c) polymerizing the microencapsulated monomer droplets to a conversion of from 10 to 75%,
(d) adding a monomer mixture 2 comprising styrene and divinyl-benzene at a temperature at which the free-radical generator from monomer mixture 1 is active, whereupon the monomer mixture penetrates into the microencapsulated monomer droplets that have begun to polymerize, and
(e) completing the polymerization of the monomer mixtures.
2. A process according to claim 1 wherein monomer mixture 2 or a portion thereof is added in the form of an emulsion in water.
3. A process according to claim 1 wherein monomer mixture 2 also comprises acrylonitrile andor a free-radical generator and at least one free-radical generator from monomer mixture 1 or monomer mixture 2 is active in step (d).
4. A process for preparing monodisperse crosslinked bead polymers comprising
(a) producing monodisperse monomer droplets in aqueous suspension from a monomer mixture 1 comprising from 87.5 to 99.7% by weight of styrene, from 0.2 to 10% by weight of divinylbenzene, and from 0.1 to 2.5% by weight of a free-radical generator,
(b) microencapsulating the resultant monomer droplets,
(c) polymerizing the microencapsulated monomer droplets to a conversion of from 10 to 75%,
(d) adding a monomer mixture 2 comprising from 80 to 99% by weight of styrene, from 1 to 12% by weight of divinylbenzene, from 0 to 8% by weight of acrylonitrile, and, optionally, a free-radical generator at a temperature at which at least one of the free-radical generators from monomer mixture 1 or monomer mixture 2 is active, where-upon the monomer mixture penetrates into the microencapsulated monomer droplets that have begun to polymerize, and
(e) completing the polymerization of the monomer mixtures.
5. A process according to claim 1 wherein the free-radical generator is one or more azo compounds andor peroxo compounds.
6. A process according to claim 4 wherein the free-radical generator is one or more azo compounds andor peroxo compounds.
7. A process according to claim 1 wherein step (a) is carried out using a spraying technique involving vibrational excitation.
8. A process according to claim 4 wherein step (a) is carried out using a spraying technique involving vibrational excitation.
9. A process according to claim 1 wherein the monomer droplets from step (a) are microencapsulated in step (b) with a polyester, a naturally occurring or synthetic polyamide, a polyurethane, or a polyurea.
10. A process according to claim 4 wherein the monomer droplets from step (a) are microencapsulated in step (b) with a polyester, a naturally occurring or synthetic polyamide, a polyurethane, or a polyurea.
11. A process according to claim 1 wherein polymerization step (c) is carried out in aqueous suspension at an elevated temperature of from 55 to 95 C.
12. A process according to claim 4 wherein polymerization step (c) is carried out in aqueous suspension at an elevated temperature of from 55 to 95 C.
13. A monodisperse, crosslinked bead polymer prepared by a process according to claim 1.
14. A monodisperse, crosslinked bead polymer prepared by a process according to claim 4.
15. A method comprising converting a monodisperse, crosslinked bead polymer according to claim 13 to a cation- or anion-exchanger.
16. A method comprising converting a monodisperse, crosslinked bead polymer according to claim 14 to a cation- or anion-exchanger.
17. A cation exchanger prepared by sulfonating bead polymers according to claim 13.
18. A cation exchanger prepared by sulfonating bead polymers according to claim 14.