JPH04132566U - Aluminum foil type identification device - Google Patents

Abstract

(57) [Summary] [Purpose] To provide an aluminum foil type discrimination device that can automatically discriminate the type of aluminum foil. [Structure] A plurality of convex portions 2a on the outer peripheral surface of the aluminum foil 1.
A barcode 2 formed by combining the barcodes 2a to 2e is cast, and by irradiating linear light 4 that traverses the barcode 2, step portions of high brightness portions corresponding to the convex portions 2a to 2e are formed, The type of aluminum foil is determined by photographing this high-brightness portion with a camera 5 and processing its output signal with an image processing device 8.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention relates to a type identification device for aluminum foil, especially for aluminum foil that flows through the same conveyance line. It is useful for sorting and automatically processing several types of aluminum foil.

0002

[Conventional technology]

FIG. 4 is a block diagram showing a production line for aluminum foil for passenger cars. In the same figure As shown, this type of production line has multiple (four in the figure) casting machines 01, 02, 03 and 04, and can handle many types of aluminum foil with different sizes and designs. It is produced by mixing. Various types of aluminum foil cast by each casting machine 01 to 04 are collected on one roller conveyor 05, conveyed toward the processing machine 06, and processed. Predetermined processing is performed by machine 06. In other words, aluminum foil immediately after casting There is a large burr on the mating surface of the mold, so it is necessary to remove this burr. The processing machine 06 performs such deburring processing, for example. At this time, processing machine 06 Now, we will program the processing program of the NC device based on the information from the upstream side of roller conveyor 05. The system is designed to process by switching the system for each model and mold. For this reason, aluminum foil The model number, mold number, etc. are usually alphanumeric characters cast in an out-of-the-way location. The operator can visually read the model number, mold number, etc. and obtain the information. is given to the processing machine 06 by an input means such as a push button switch.

0003

[Problem that the idea aims to solve]

In the above conventional technology, a person visually checks the model number and mold number of the aluminum foil. Since the numbers have to be read, it is necessary to assign specialized workers to this work. It won't happen. In addition, since the work is done manually, the model number, mold number, etc. mentioned above are difficult to read. Coupled with the fact that it is located in a difficult location, it can sometimes be misinterpreted. In this case Processing machine 06 tries to process aluminum foil with the wrong program, so There is a possibility that the processing machine 06 may be damaged.

0004 In view of the above-mentioned conventional technology, the present invention is an application that can automatically determine the type of aluminum foil. The purpose of this invention is to provide a Lumifoil type identification device.

[0005]

[Means to solve the problem]

The structure of the present invention to achieve the above purpose is as follows:

[0006] This aluminum foil is used to determine the type of aluminum foil being conveyed on the conveyor line. A barcode, which is a convex portion integrally formed on the outer peripheral surface of the barcode, a light emitting source that emits linear light that traverses the barcode; At an angle that creates a step in the high brightness area due to linear light based on the barcode. a photographing means for photographing a high-brightness part; Information expressed by barcodes by processing linear light image information obtained by photographing means and an image processing means for determining.

[0007]

[Effect]

According to the present invention having the above configuration, image information of a high-brightness portion obtained by the photographing means is obtained. The barcode can be read based on the number and spacing of the steps, so image processing means The type of aluminum foil is determined by predetermined image processing.

[0008]

【Example】

Embodiments of the present invention will be described in detail below with reference to the drawings.

[0009] FIG. 1 is an explanatory diagram conceptually showing an embodiment of the present invention when viewed from the side, and FIG. FIG. 2 is an explanatory diagram conceptually showing a plan view of the embodiment. As shown in both figures, Mihoil 1 is placed on roller conveyor 05 and transported. A plurality of annular protrusions 2a, 2b, 2c, 2d, and 2e are integrally formed on the peripheral surface over the entire circumference. It is instilled with purpose. The barcode 2 is formed as a collection of the protrusions 2a to 2e. , a specific meaning depending on the number of protrusions 2a to 2e and the spacing between them, that is, the model number , represents the mold number, etc.

0010 A laser gun 3, which is a light emitting source, emits linear light 4 that spreads over a predetermined width in a vertical plane into a bar code. It is arranged diagonally above the aluminum foil 1 so as to irradiate it towards the door 2. Thus , the linear light 4 traverses the barcode 2 and forms a linear high-intensity portion in this traversal portion. Ru.

[0011] A camera 5, which is a photographing means, has a stepped portion of linear light 4 based on the barcode 2. The bar code 2 is arranged so as to photograph the linear light that traverses the bar code 2 at such an angle. In this embodiment, the vertical plane containing the linear light 4 and the vertical plane containing the optical axis 6 of the camera 5 intersect. They are arranged at positions where they intersect at an intersecting angle θ (>0).

0012 As a result, the camera 5 captures an image as shown in FIG. That is, linear light 4 The high brightness area 7 formed by irradiating the barcode 2 (thick line area in FIG. 3) ), the parts of the aluminum foil 1 corresponding to the convex parts 2a to 2e are one step higher than the other parts. The stepped portions 7a, 7b, 7c, 7d, and 7e are formed. Therefore, the high brightness part 7 Analyzing the stepped portions 7a to 7e is equivalent to analyzing the barcode 2.

[0013] The image processing device 8 processes the video signal of the camera 5, that is, the high brightness signal shown in FIG. The barcode 2 is analyzed by determining the number of stepped portions 7a to 7e of the degree portion 7 and their mutual spacing. , sends out a discrimination signal S representing the meaning of this barcode 2.

[0014] According to the above embodiment, the high brightness portion illuminated by the linear light that traverses the barcode 2 7 is a stepped portion corresponding to the convex portions 2a to 2e of the aluminum foil 1 forming the barcode 2. The camera 5 photographs the high-brightness portion 7 from positions 7a to 7e. Therefore, the video signal that is the output signal of camera 5 has the same information as barcode 2. are included as the stepped portions 7a to 7e. Thus, the image processing unit 8 The signal is processed and a discrimination signal S representing the meaning of the barcode 2 is sent out.

[0015] The discrimination signal S can be applied in various ways, for example, in the processing machine 06 in FIG. This can be applied to switching machining programs.

[0016]

[Effect of the idea]

As specifically explained above with the embodiments, according to the present invention, aluminum foil can be Just by casting the protruding barcode, the aluminum foil will automatically and reliably It is possible to determine the model etc.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram conceptually showing an embodiment of the present invention when viewed from the side.

FIG. 2 is an explanatory diagram conceptually showing a plan view of the embodiment.

FIG. 3 is an explanatory diagram showing an image taken by the camera in the embodiment.

FIG. 4 is an explanatory diagram conceptually showing an aluminum foil production line according to the prior art.

[Explanation of symbols]

1 Aluminum foil 2 Barcode 2a-2e Convex portion 3 Laser gun 4 Linear light 5 Camera 7 High brightness area 7a-7e Stepped section

Claims (1)

[Scope of utility model registration request] [Claim 1] In order to identify the type of aluminum foil being conveyed on a conveyance line, a bar code, which is a convex portion integrally formed on the outer peripheral surface of the aluminum foil, and a linear light that crosses the bar code are irradiated. A light emitting source, a photographing means for photographing a high-brightness portion at an angle such that a stepped portion of the high-brightness portion is formed by the linear light based on the barcode, and processing video information of the linear light obtained by the photographing means. An apparatus for determining the type of aluminum foil, comprising: image processing means for determining information represented by a barcode.