Marking method and marking device for casting

Patent metadata

Field	Value
Publication number	US-11020799-B2
Application number	US-201916427511-A
Country	US
Kind code	B2
Filing date	May 31, 2019
Priority date	May 31, 2018
Publication date	Jun 1, 2021
Grant date	Jun 1, 2021

Abstract

[Solution] Detect foreign matter on an outer surface of a casting 100, set marking locations 118, 120-1, 120-2, and make a mark on the marking locations 118, 120-1, 120-2.

First claim

The invention claimed is:

1. A marking method for a casting that makes a mark on the casting, the marking method comprising:
detecting foreign matter on an outer surface of the casting;
setting a marking location and making the mark on the marking location, wherein the marking location includes a standard marking location and an alternative marking location;
detecting presence or absence of foreign matter for the standard marking location of the casting by comparing mold data of the casting with the casting; and
making the mark on the standard marking location or the alternative marking location.

2. The marking method for the casting according to claim 1 , comprising making the mark on the alternative marking location when foreign matter is detected on the standard marking location.

3. The marking method for the casting according to claim 2 , wherein
a cast product is configured to comprise one or more of the castings; and
for the cast product, prior to machining, a mark on the alternative location is made as a temporary mark; and
after the machining, a standard mark is made on the standard marking location of the casting on which the temporary mark was made.

4. The marking method for the casting according to claim 3 , comprising inspecting for the foreign matter for each casting sequentially produced by casting equipment, and issuing a failure countermeasure signal of the casting equipment when a number of detections of the foreign matter exceeds a certain number of times or a certain ratio.

5. The marking method for the casting according to claim 2 , wherein
a cast product is configured to comprise one or more of the castings; and
for the cast product, prior to machining, a mark on the standard marking location and a mark on the alternative marking location are made as temporary marks; and
after the machining, a standard mark is made on the standard marking location.

6. The marking method for the casting according to claim 5 , comprising inspecting for the foreign matter for each casting sequentially produced by casting equipment, and issuing a failure countermeasure signal of the casting equipment when a number of detections of the foreign matter exceeds a certain number of times or a certain ratio.

7. The marking method for the casting according to claim 2 , comprising inspecting for the foreign matter for each casting sequentially produced by casting equipment, and issuing a failure countermeasure signal of the casting equipment when a number of detections of the foreign matter exceeds a certain number of times or a certain ratio.

8. The marking method for the casting according to claim 1 , wherein
a cast product is configured to comprise one or more of the castings; and
for the cast product, prior to machining, a mark on the alternative location is made as a temporary mark; and
after the machining, a standard mark is made on the standard marking location of the casting on which the temporary mark was made.

9. The marking method for the casting according to claim 8 , comprising inspecting for the foreign matter for each casting sequentially produced by casting equipment, and issuing a failure countermeasure signal of the casting equipment when a number of detections of the foreign matter exceeds a certain number of times or a certain ratio.

10. The marking method for the casting according to claim 1 , wherein
a cast product is configured to comprise one or more of the castings; and
for the cast product, prior to machining, a mark on the standard marking location and a mark on the alternative marking location are made as temporary marks; and
after the machining, a standard mark is made on the standard marking location.

11. The marking method for the casting according to claim 10 , comprising inspecting for the foreign matter for each casting sequentially produced by casting equipment, and issuing a failure countermeasure signal of the casting equipment when a number of detections of the foreign matter exceeds a certain number of times or a certain ratio.

12. The marking method for the casting according to claim 1 , comprising inspecting for the foreign matter for each casting sequentially produced by casting equipment, and issuing a failure countermeasure signal of the casting equipment when a number of detections of the foreign matter exceeds a certain number of times or a certain ratio.

Assignees

• Sintokogio Ltd

Inventors

• SATO Douta
• Sugino Takehiro

Classifications

• B22D45/00 Primary

  Equipment for casting, not otherwise provided for · CPC title

• B22D46/00

  Controlling, supervising, not restricted to casting covered by a single main group, e.g. for safety reasons (controlling or regulating in general G05) · CPC title

• B41K3/66

  Safety devices, e.g. for preventing extraction of copy matter before completion of stamping operation · CPC title

• B41K3/36

  with means for deforming or punching the copy matter · CPC title