JPH09128578A - Mold number managing method by engraved die number on glass vessel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve quality by improving and stabilizing the quality management of a glass more by engraving a glass more mold number by hot end just after glass more production. SOLUTION: A bottle molded by a bottle producing machine 1 is not on a moving belt conveyer 2, changed onto an annealing entrance conveyer 3 by a ware transfer 3 and introduced into an annealing furnace 6. Just before the ware transfer 3, the existence of bottle is announced to a controller 43 by bottle existence sensors 40 and 41, laser beams are emitted from a laser marker to the bottle to be engraved at the position of a die number engraving part 4, and a mold number and a trade mark are successively engraved onto the bottom of the bottle. Since the mold number and the trade mark are applied by engraving, the defect of heat resistant check generated at the shaped sections of mold number and trade mark can be eliminated. At the same time, when the image of mold number is sampled by a CCD camera, it can be sampled as a uniform and sharp mold number image, and a mold number recognition rate is improved. Besides, since the mold number is engraved after molding, the fixed sharp mold number image can be always sampled and stable mold number recognized is enabled.

Description

Detailed Description of the Invention

[0101]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of manufacturing glass container model numbers, company labels, trademarks, etc. in a glass container factory line and a quality control method by model number management.

[0092]

2. Description of the Related Art In a conventional glass container factory line,
As a method of manufacturing the container model number, company mark, trademark, etc., a recess is formed in the container mold itself, and it is formed as a protrusion on the bottom of the container. Also, in order to make it easy to read the container model number, a bar code symbol is similarly formed, and after the container has passed through the annealing furnace, the model number is read by a model number recognition device that uses a CCD camera to eliminate defective containers generated by the model number. Was there.

[0093]

However, conventionally,
Since the model number, company mark, and trademark that are molded as a convex part on the bottom of the container have a convex part, heat rust defects are likely to occur, and there are less irregularities depending on the wear of the mold and the molding process. If the recognition rate declines and a defect occurs depending on the model number,
There is no space to put a bar code symbol on the bottom as a model number in the case of small containers, especially small bottles, because the rejection rate by model number decreases and defective containers mix, and the relationship between glass containers in the molded numbers In addition, there is a problem in that the optical recognition rate is poor and it is not practical. further,
In the bottle making mold, about 30 sets of molds are required to mold one type of bottle, and the model number is added as an additional process.
It is a factor that raises the die cost.

[0093]

In order to achieve the above-mentioned object, the present invention provides a method for managing a model number based on a stamped model number of a glass container. The company name and trademark are stamped and the container model number is read and recognized on the inspection process line after passing through the slow cooling furnace, and the defective container generated by the container mold is excluded by the model number. In this case, because the container model number is engraved, the characters or symbols can be optically clearly displayed on the CCD.
Since it can be captured by a camera, the container model number can be read accurately, and if the container model number to be discharged is set, the container of that container model can be reliably discharged. As a result, it is possible to prevent a defective container caused by the container model number from mixing with another non-defective container. Also, by inserting the container model number, company mark, trademark, etc. in the engraved mark, it is possible to eliminate the above-mentioned heat-resistant billet defects that occur in the model number, company mark, and trademark parts due to molding. Further, since the additional machining of the model number of the container mold is eliminated, the mold cost can be reduced.

[0056]

According to the present invention, in the method of controlling the model number by the stamped model number of the glass container in the glass container manufacturing line, by improving and stabilizing the quality control of the glass container,
Quality can be improved.

[0086]

Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a layout explanatory view of a laser marker for engraving a container model number showing an outline of an embodiment of the present invention. FIG.
FIG. 4 is an explanatory diagram of a model number engraving portion. FIG. 3 is an explanatory view of a marking window plate. FIG. 4 is an explanatory view of the bottle bottom marking. FIG. 5 is a schematic explanatory diagram of a model number reading unit used in one embodiment of the present invention. FIG. 6 is an explanatory diagram of the model number reading unit bottle transport.

As shown in FIG. 1, bottles that have been orderly formed by the bottle making machine 1 are placed on a hot end conveyor 2 that moves, and the bottles are conveyed. The conveyed bottle is transferred to the slow cooling inlet conveyor 5 by the wear transfer 3 and introduced into the slow cooling furnace 6. Here, the bottle molded immediately before the wear transfer 3 blocks the bottle presence sensors 40 and 41 and informs the laser marker control device 43 of the presence of the bottle. , Fig. 2
The CO ² laser light 10 is emitted from the laser marker 11 shown in FIG. 3, and the model number 14 and the trademark 13 are sequentially engraved on the bottle bottom 12 shown in FIG. 4 from the laser window 9 of the engraving window plate 15.
Also, the model number 14 and the trademark 13 to be engraved are registered and set in advance from the switch box 45, or the speed information of the conveyor and the model number information of the molded bottle are transferred to the laser marker control device 43 by the hot end conveyor signal cable 42. Type 1 on the bottom 12 of the bottle
4. The trademark 13 will be imprinted on the correct position.

Next, the bottle model number reading section in the inspection line process of the bottle making line will be described with reference to FIGS. 5 and 6. The bottle conveying belts 16, 17, 34 are moved by the motors 25, 35 from the bottle conveying conveyor 37. When the model-to-be-readed bottle 23 is sandwiched as in the direction 50 and conveyed to the inspection position 52, the illumination light 18 of the illuminating device 19 is radiated to the bottom of the model-to-be-readed bottle 23 through the diffusion plate 20, and the CCD camera 21 is Through the inside of the bottle mouth with the field of view 22, the model number read bottle 23
Take an image of the bottom of the bottle from the inside of the bottle.
4 is input to the character recognition device 26, the model number is recognized, and if it matches the model number set in the model number sampling setting unit 53 from the outside in advance, the bottle sampling signal cable 29
When the bottle withdrawal signal is sent to the air solenoid valve 30 through
Air is sent to the air hose 31 for 100 to 200 ms, and the bottle extraction air nozzle 28 moves the bottle to the bottle extraction table 36 to extract the bottle model number.

In the present embodiment, the example of reading the model number by the model number stamped on the bottle in the bottle manufacturing factory line was taken up, but the trademark and model number stamped part is not limited to the bottle bottom part.
It may be on the side of the bottle. Further, it is needless to say that the model number management method based on the engraved model number of the glass container is not limited to the first embodiment and is applicable to all glass containers.

EFFECTS OF THE INVENTION According to the present invention, in the model number management method based on the engraved model number of the glass container, the model number and the trademark are marked by engraving, so that the heat-resistant billet defects occurring in the shaped model number and the trademark portion can be eliminated, and When the model number is imaged by the CCD camera, the image can be sampled as a uniform and clear model number image, and the model number recognition rate is improved.
Further, since the stamped model number is obtained after molding, it is possible to always collect a constant clear model number image and perform stable model number recognition. Further, since there is no need for additional machining of the model number, the additional machining cost of the mold can be eliminated.

[Brief description of the drawings]

FIG. 1 is a layout explanatory view of a laser marker for engraving a container model number according to an embodiment of the present invention.

FIG. 2 is an explanatory view of a model number marking portion.

FIG. 3 is an explanatory view of a stamp window plate.

FIG. 4 is an explanatory view of a bottle bottom marking.

FIG. 5 is a schematic explanatory view of a model number reading unit used in one embodiment of the present invention.

FIG. 6 is an explanatory diagram of the model number reading unit bottle conveyance.

[Explanation of symbols]

1. Bottle making machine 2. Hot end line conveyor 3. Wear transfer 4. Model number stamped part 5. Slow cooling inlet conveyor 6. Annealing furnace 7. Safety case 8. Engraved bottle 9. Laser window 10. CO ² laser light 11. Laser marker device 12. Bottle bottom 13. Trademark 14. Model number 15. Stamped window plate 16.17.34 Bottle conveyor belt 18. Illumination light 19. Lighting device 20. Diffuser 21. CCD camera 22. Field of view 23. Model number reading bottle 24. Camera cable 25.35. Motor 26. Character recognition device 27.37. Bottle transport conveyor 28. Bottle extraction air 29. Bottle extraction signal cable 30. Solenoid valve 31. Air hose 32.33. Binned sensor 36. Bottle extraction table 40.41. Binned sensor 42. Hot end conveyor signal cable 43. Laser marker control device 44. Laser marker cable 45. Switch box 50. Moving direction 51. Conveyor moving direction 52. Inspection position 53 Model number sampling setting section

Claims (4)

[Claims] 1. A method of managing a glass container model number in a glass container factory line, wherein the glass container model number is stamped at the hot end immediately after molding the glass container. 2. The method according to claim 1, wherein at the time of marking the model number of the glass container, any or all of company marks and trademarks other than the model number are marked. 3. After the glass container model number is engraved, after passing through an annealing furnace, the engraved glass container model number is recognized by a model number recognition device using a CCD camera, and defective glass containers generated by the glass container mold are eliminated. Or the method according to claim 1, wherein the sorting is performed. 4. The method according to claim 1, wherein the glass container model number is imprinted with characters or symbols other than numbers.