Screen printing machine

Patent metadata

Field	Value
Publication number	US-9398696-B2
Application number	US-201214123176-A
Country	US
Kind code	B2
Filing date	Mar 14, 2012
Priority date	May 31, 2011
Publication date	Jul 19, 2016
Grant date	Jul 19, 2016

Abstract

Disclosed is an inexpensive small-sized screen printing machine having low redundancy and high production efficiency and applicable to a dual conveying-type component mounting machine. The screen printing machine comprises a pair of substrate supporting tables provided to hold a respective substrate that is a print object and which is juxtaposed in a direction that is perpendicular to a conveying direction of the substrate, and a print executing section that performs a printing process alternately on the substrate held by the pair of substrate supporting tables. Due to the print executing section being driven in the direction under control of a control unit, a print position where the substrate supporting tables execute alternate printing is changed within a range in which one of the pair of substrate supporting tables and the other of the pair of substrate supporting tables oppose each other in the direction.

First claim

The invention claimed is:

1. A screen printing machine comprising:
a pair of substrate supporting tables, each of which is provided for holding a substrate that is a print object, the substrate supporting tables being juxtaposed along a specific direction that is perpendicular to a conveying direction of the substrate;
a print executing section which performs a printing process alternately on respective substrates held by the pair of substrate supporting tables;
a print executing section driving mechanism that drives the print executing section along the specific direction;
a print position setting section configured to set a print position that is a position of the print executing section within a range in which one of the pair of substrate supporting tables and the other of the pair of substrate supporting tables oppose each other in the specific direction, by controlling a drive of the print executing section driving mechanism; and
a screen mask holding mechanism provided with the print executing section.

2. The screen printing machine according to claim 1 ,
wherein the print position setting section changes the print position to be set in a set-up change in which a print object substrate type is changed.

3. A screen printing machine comprising:
a pair of substrate supporting tables, each of which is provided for holding a substrate that is a print object, the substrate supporting tables being juxtaposed along a specific direction that is perpendicular to a conveying direction of the substrate;
a print executing section which performs a printing process alternately on respective substrates held by the pair of substrate supporting tables;
a print executing section driving mechanism that drives the print executing section along the specific direction;
a print position setting section configured to set a print position that is a position of the print executing section within a range in which one of the pair of substrate supporting tables and the other of the pair of substrate supporting tables oppose each other in the specific direction, by controlling a drive of the print executing section driving mechanism;
a substrate supporting table driving mechanism that individually drives each of the pair of substrate supporting tables in the specific direction; and
a table movement control unit configured to control the substrate supporting table driving mechanism.

4. The screen printing machine according to claim 3 ,
wherein a common area is set and in which both the substrate supporting tables are movable in the specific direction.

5. The screen printing machine according to claim 3 ,
wherein the print position setting section sets the print position based on a table movable pitch that is defined as a range in which any one of the pair of substrate supporting tables is movable in the specific direction.

6. The screen printing machine according to claim 3 , further comprising a base on which a first substrate carry-in position where a substrate prior to printing is carried into one of the pair of substrate supporting tables and a second substrate carry-in position where a substrate prior to printing is carried into the other of the pair of substrate supporting tables are set with an interval spaced in the specific direction,
wherein the substrate supporting table driving mechanism drives each of the substrate supporting tables, mutually, movably between a corresponding substrate carry-in position and the print position, in a case where the print position set by the print position setting section is out of alignment with the first substrate carry-in position and the second substrate carry-in position with respect to the specific direction.

7. The screen printing machine according to claim 6 , wherein
a first substrate carry-out position where a substrate after printing is carried out from one of the pair of substrate supporting tables and a second substrate carry-out position where a substrate after printing is carried out from the other of the pair of substrate supporting tables are set with an interval spaced in the specific direction on the base, and
the substrate supporting table driving mechanism drives each of the substrate supporting tables, mutually, movably among the corresponding carry-in position, the print position and a corresponding substrate carry-out position, in a case where the print position set by the print position setting section is out of alignment with the first substrate carry-in position, the second substrate carry-in position, the first substrate carry-out position, and the second substrate carry-out position with respect to the specific direction.

8. The screen printing machine according to claim 7 ,
wherein the print position setting section changes the print position to be set in a set-up change in which at least one of the respective first and second substrate carry-in positions and the respective first and second substrate carry-out positions are changed.

9. The screen printing machine according to claim 7 ,
wherein
the print position setting section alternately moves the print executing section so that the print position is changed to a side of the base corresponding to one of the substrate carry-in positions when the substrate supporting tables is set to move from the one of the substrate carry-in positions to the print position.

10. The screen printing machine according to claim 9 , wherein
the table movement control unit controls the substrate supporting table driving mechanism so that one substrate supporting table that has exited the print position approaches, after carrying out a printed substrate and before moving into a next printing process, the other substrate supporting table that has located at the print position by a predetermined position.

11. The screen printing machine according to claim 3 , further comprising:
a base on which a first substrate carry-out position where a substrate after printing is carried out from one of the pair of substrate supporting tables and a second substrate carry-out position where a substrate after printing is carried out from the other of the pair of substrate supporting tables are set with an interval spaced in the specific direction,
wherein the substrate supporting table driving mechanism drives each of the substrate supporting tables, mutually, movably between a corresponding substrate carry-out position and the print position, in a case where the print position set by the print position setting section is out of alignment with the first substrate carry-out position and the second substrate carry-out position with respect to the specific direction.

12. A screen printing machine comprising:
a pair of substrate supporting tables, each of which is provided for holding a substrate that is a print object, the substrate supporting tables being juxtaposed along a specific direction that is perpendicular to a conveying direction of the substrate;
a print executing section which performs a printing process alternately on respective substrates held by the pair of substrate supporting tables;
a print executing section driving mechanism that drives the print executing section along the specific direction;
a print position setting section configured to set a print position that is a position of the print executing section within a range in which one of the pair of substrate supporting tables and the other of the pair of substrate supporting tables oppose each other in the specific direction, by controlling a drive of the print executing section driving mechanism; and
a data table storing a necessary shift for each operation item needed for a mask movement management for each screen pri

Assignees

• Miyake Yasushi
• Fujimoto Takeshi
• Yamaha Motor Co Ltd

Inventors

• Miyake Yasushi
• Fujimoto Takeshi

Classifications

• B41P2215/112

  with means for displacing the frame · CPC title

• B41F33/0081

  Devices for scanning register marks · CPC title

• B41F15/08

  Machines · CPC title

• H05K3/0085 Primary

  Apparatus for treatments of printed circuits with liquids not provided for in groups H05K3/02 - H05K3/46; conveyors and holding means therefor (apparatus specially adapted for manufacturing assemblages of electric components, e.g. printed circuit boards, H05K13/00) · CPC title

• B41F15/26 Primary

  for articles with flat surfaces · CPC title