JP2003117635A - Method for detecting defective mold in molding machine for horizontal splitting molds and its apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method which can surely and easily detect defect, particularly, in an upper mold in the method for detecting the defect in the upper mold in a molding machine for horizontal splitting molds simultaneously molding the upper and lower molds by using a match plate and upper and lower flasks as main parts. SOLUTION: After simultaneously molding the upper and the lower molds, the molds are separated from the match plate, and the upper surface of the match plate under horizontal state is photographed with a CCD camera. This photographed result is picture-processed and also, it is detected whether any foreign matter on the upper surface of the match plate exists or not by comparing the result with the normal upper surface of the match plate, and in the case the foreign matter exists, a perceptible signal is outputted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for detecting defects in the upper mold in a horizontal split mold making machine that simultaneously molds the upper and lower molds using a match plate and upper and lower frame bodies as main components. Regarding the device.

[0002]

2. Description of the Related Art Conventionally, a so-called horizontal split mold molding machine which simultaneously molds upper and lower molds using a match plate and upper and lower frame bodies as main components is generally designed so that a core can be set in the lower mold. Since it is configured, the presence or absence of defects in the lower mold can be visually detected when the core is set. However, in this horizontal split mold making machine, the upper mold is farther away from the worker than the lower mold and is usually facing downward, so the worker confirms whether there is a defect in the upper mold. It was extremely difficult to do.

The present invention has been made to solve the above problems, and an object thereof is a method capable of reliably and easily detecting a defect of an upper mold particularly in a horizontal split mold making machine. And to provide a device.

[0004]

In order to achieve the above object, a method for detecting a defective mold in a horizontal split mold making machine according to the present invention uses a match plate and an upper / lower frame as main parts. A method for detecting defects of the upper mold in a horizontal split mold molding machine that simultaneously molds a mold, and after releasing the upper and lower molds from the match plate after simultaneous molding, the upper surface of the match plate in a horizontal state Images are taken with a CCD camera, and the results of this image processing are image-processed, and the presence or absence of foreign matter on the upper surface of the match plate is detected by comparing with the previously stored normal match plate upper surface. It is characterized by emitting a signal.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION A horizontal split mold making machine to which the present invention is applied will be described in detail below with reference to FIGS. 1 and 2. This horizontal split mold making machine 1 has
The lower frame bodies 3 and 4 are used as main parts to simultaneously mold the upper and lower molds. Then, in the horizontal split mold making machine 1, a CCD camera 7 for photographing the upper surface of the match plate 2 in a horizontal state after the upper and lower molds 5 and 6 are simultaneously molded and released, and this CCD camera The image pickup result of 7 is compared with the normal match plate upper surface, and the detecting means 8 detects the presence or absence of foreign matter on the upper surface of the match plate, and the transmitting means which outputs a perceptible signal when the foreign matter is present. And an alarm device 9 are provided.

[0006] The thus constructed structure is produced by the horizontal split mold making machine 1 with the match plate 2 and the upper and lower frame members 3 and 4.
The upper and lower molds 5 and 6 are simultaneously molded using as a main component, and then the mold is released from the match plate 2. Then, the upper surface of the match plate 2 in the horizontal state is photographed by the CCD camera 7.
Then, the detection means 8 performs image processing on the photographing result of the CCD camera 7 and detects the presence / absence of foreign matter on the upper surface of the match plate 2 which is stored in advance, and detects the presence / absence of foreign matter, and when foreign matter is present The alarm 9 sounds an alarm. The fact that the detection means 8 detects the presence of the foreign matter based on the image pickup result of the CCD camera 7 means that a part of the upper mold 5 is damaged and remains on the match plate 2. Will have defects.

[0007]

As is apparent from the above description, according to the present invention, the upper and lower molds are simultaneously molded, then separated from the match plate, and the upper surface of the horizontal match plate is photographed by a CCD camera. Image processing is performed on the shooting result, and the presence or absence of foreign matter on the upper surface of the match plate is detected by comparing it with the previously stored normal match plate upper surface. When a foreign matter is present, a perceptible signal is output. In the mold making machine, excellent practical effects such as the defect of the upper mold can be reliably and easily detected can be obtained.

[Brief description of drawings]

FIG. 1 is a partially sectional front view showing an embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

[Explanation of symbols]

1 Horizontal split mold making machine 2 match plates 3 Upper frame 4 Lower frame 5 Upper mold 6 Lower mold 7 CCD camera 8 Detection means 9 alarm

Claims (2)

[Claims] 1. A method for detecting defects in the upper mold in a horizontal split mold making machine that simultaneously molds upper and lower molds using a match plate and upper and lower frame bodies as main components, wherein the upper and lower molds After simultaneously molding the mold, the mold is released from the match plate, the upper surface of the match plate in the horizontal state is photographed by a CCD camera, and the photographed result is image-processed and compared with the previously stored normal upper face of the match plate. A method for detecting a defective mold in a horizontal split mold making machine, which detects the presence of foreign matter on the upper surface of the match plate and outputs a perceptible signal when the foreign matter is present. 2. A device for detecting a defect of the upper mold in a horizontal split mold making machine that simultaneously molds the upper and lower molds by using a match plate and upper and lower frame bodies as main components, A CCD camera that shoots the top surface of the match plate in the horizontal state after molding the mold at the same time as releasing it, and this C
Detecting means for performing image processing on the result of photographing by the CD camera and comparing with the normal upper surface of the match plate to detect the presence or absence of foreign matter on the upper surface of the match plate, and transmitting means for issuing a perceptible signal when the foreign material is present. An apparatus for detecting a defective mold in a horizontal split mold making machine, comprising: