JPH06714A - Method and device for removing defect part of belt-like material - Google Patents

Abstract

PURPOSE:To prevent the occurrence of uneven workmanship and overlooking of errors owing to the individual difference of an operator so as to perform accurate sampling of a product sheet, containing no defective part, from a belt-like material. CONSTITUTION:A flaw inspecting device 1 to detect the defect of a belt-like material surface, a flaw display unit to display the detected result of the flaw inspecting device 1 in synchronism with the flow of a belt-like material, and an input device to repair and add a defect generating position based on the visual inspection result of an operator are arranged at a stage prior to a cutter for the belt-like material. The defect-detected position of the belt-like material is tracked and based on the tracking result, a product sheet is discriminated from a defect part sheet by a shear control device 11 so as to remove the defect part sheet.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for removing defective portions of a band-shaped material, and more particularly, when the band-shaped material is cut into a set length to obtain a sheet-shaped product, variations due to individual differences. The present invention relates to a method and an apparatus for removing a defective portion of a strip-shaped material, which enables to avoid a defect or the like and to accurately collect a product sheet containing no defective portion from the strip-shaped material to remove the defective portion.

[0002]

2. Description of the Related Art The following three methods have been conventionally known as methods for removing defective portions on the surface of a steel plate in the step of cutting a strip-shaped steel plate into a certain length and collecting a veneer product.

The first method is a method of visually deciding individual veneer products cut into a certain length and removing them.

In the second method, the surface of the strip-shaped steel sheet before cutting is visually determined, and the defect of the strip-shaped steel sheet is separated from the product portion to be cut, so that a person changes the cutting length. Is.

A third method is disclosed in JP-A-63-5291.
As disclosed in No. 9, a flaw inspection device automatically attaches a marking to a defective portion on the surface of a steel sheet, and a marking detection device provided at a subsequent stage of the flaw inspection device detects the marking and uses the detection signal. It is a method of cutting the defective portion with a cutting machine.

[0006]

However, since the first method is an inspection for visually judging individual veneer products after cutting the products, the product yield is lowered and the efficiency of the inspection process is greatly deteriorated. There was a problem of doing. or,
Since this is a visual inspection by humans, there is also a problem that the inspection results vary due to individual differences among inspectors.

[0007] In the second method, a person performs a designation input of a cutting position, that is, an operation of changing the cutting length, so as to separate the defect of the strip-shaped steel sheet from the product portion and cut it. There was a problem in that there were variations due to differences. Further, since it is a visual inspection by a human, there is a problem that the inspection result is likely to vary due to individual differences and there is a possibility that defects of the strip-shaped steel sheet may be overlooked.

Further, the third method has a problem that a defect which is difficult to detect by the defect inspection device is overlooked because it depends on the output of only the defect inspection device. Further, there is also a problem that a flaw detection device may erroneously detect and erroneously cut a normal portion of the strip-shaped steel sheet, or that marking may occur at an unnecessary portion of the strip-shaped steel sheet even if the cut is not reached. Furthermore, in order to reuse the defective portion of the strip-shaped steel sheet that has been separated and cut from the product portion for sale, such as by selling it as a downgraded product, the number of steps to erase the marking automatically attached to the defective portion of the steel sheet surface has increased. There was also the problem of doing.

In view of the above situation, the present invention has been made as a solution to the above-mentioned problems of the conventional example, and avoids variations and oversights due to individual differences of operators and the like, and provides a defective portion. It is an object of the present invention to provide a method and an apparatus for removing a defective portion of a strip-shaped material, which can accurately collect a product sheet that does not contain the above-mentioned material and remove the defective portion.

[0010]

The present invention provides a method and apparatus for removing a defective portion of a strip-shaped material when the strip-shaped material is cut into predetermined lengths by a cutting machine or the like to collect a product sheet. While detecting the feed amount of the band-shaped material with a length measuring roll or the like, a defect on the surface of the band-shaped material is detected by a flaw inspection device, and the band-shaped material surface detected by the flaw inspection device is synchronized with the flow of the band-shaped material. Display the defect position of the defect on the defect display, the defect position signal corresponding to the result of the human visual judgment of the defect on the inspection table,
The surface defect detection signal sent from the flaw inspection device and the sending amount signal sent from the length measuring roll etc. are received and tracked by the tracking device, and the output controls the cutting machine and cuts the cut sheet. The above problem is solved by allocating a product sheet and a defective portion sheet by a sheet allocating control device or the like.

[0011]

In the present invention, in the preceding stage of the band-shaped material cutting machine,
A flaw inspection device for detecting defects on the surface of the belt-shaped material, a flaw indicator for displaying the detection result of the flaw inspection device in synchronism with the flow of the belt-shaped material, and a defect occurrence position corrected or added by a human visual result. An input device is provided, the defect detection position of the band-shaped material is tracked, and based on the result, the shear control device or the like is driven to distinguish the product sheet from the defective portion sheet, and the latter is removed.

Therefore, it is possible to avoid variations and oversights due to individual differences among operators, and to accurately collect a product sheet that does not include a defective portion from the band-shaped material and remove the defective portion. Further, since the defective sheet cut to exclude the defective portion has no marking, it can be diverted smoothly to a downgraded product or the like.

That is, a flaw inspection device is provided in front of the band-shaped material cutting machine, and the defect output result of the flaw inspection device is used to detect the defect position to be cut. You can prevent overlooking.

Further, since the defect detection position by the flaw inspection device is electrically tracked in synchronization with the progress of the strip-shaped material, no marking is required.

Furthermore, an inspection table is provided in the latter stage of the flaw inspection apparatus, and a flaw display device for displaying the defect position detected by the flaw inspection apparatus in synchronization with the progress of the strip-shaped material, and the defect position correction by visual judgment by the operator. By providing the input device for performing the above, it is possible to prevent over-detection and oversight of the flaw inspection device.

Further, the defect detection position by the defect inspection device and the operator's correction input on the inspection table can be electrically tracked to determine the cutting pattern for optimally removing the defective portion from the product cutting length. , There is no individual difference or human variation in the cutting method for defect removal.

Further, since the defective portion is electrically tracked, the removed defective portion has no marking and can be easily reused.

[0018]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the drawings.

FIG. 1 is an explanatory diagram of the configuration of this embodiment. In the figure, reference numeral 4 is a length measuring roll, which sends out a pulse signal S1 corresponding to the amount of feeding of the strip steel plate 5. This pulse signal S1 is counted by the pulse counter 9, the delivery length of the strip-shaped steel plate 5 is calculated and delivered to the defect position tracking device 10 as the delivery amount S2.

Reference numeral 1 is a flaw inspection device, which detects a surface defect of the strip steel plate 5 and outputs the detection signal S3 to the tracking device 10.
Send to.

In the tracking device 10, the feeding amount signal S2 and the detection signal S3 are combined to produce the strip steel plate 5
The defect position generated on the surface of the sheet is tracked according to the amount of the strip-shaped steel sheet 5 delivered.

The tracking device 10 also takes in the product sheet length signal S4 sent from the host computer 13 and tracks the product cutting position of the strip steel plate 5 in the same manner. Further, the tracking device 10 tracks the defect position and the product cutting position of the strip-shaped steel plate 5 in accordance with the delivery amount of the strip-shaped steel plate 5, and displays it on a defect indicator attached to the inspection table 2.

3 is a strip steel plate 5 on the inspection table 2.
This is an input device for inputting the result of the human visual inspection of the defect (1), and sends a signal S5 regarding the defect position of the strip-shaped steel plate 5 found by visual inspection to the tracking device 10. The input method in this case is performed by pressing a push button or the like when the found defect position of the strip-shaped steel plate 5 reaches a predetermined position of the inspection table 2, and by this input, the defect position on the surface of the strip-shaped steel plate 5 is determined. It is recognized by the tracking device 10.

The input device 3 can also cancel the inspection result of the defect inspection device 1 displayed on the defect display of the inspection table 2. The cancellation method in this case is performed as follows. That is, when a defect display to be canceled appears at a predetermined position of the defect display, a push button or the like is pressed to input, and the input deletes the tracking of the corresponding defect from the defect tracking performed by the tracking device 10.

In this way, the defects on the surface of the strip-shaped steel plate 5 detected by the flaw inspection device 1 and the input device 3 are tracked by the tracking device 10 as the strip-shaped steel plate 5 progresses, and sent out from the host computer 13. It is combined with the sheet length signal S4.

FIG. 2 is a view showing a cutting pattern of the strip-shaped steel sheet, which was carried out by using this embodiment. In this figure,
(A) and (C) show the results of synthesizing the defect tracking on the strip steel plate surface and the cutting length of the product sheet, and (B) and (D) correspond to (A) and (C), respectively. Therefore, the case where the cutting position of the product sheet is changed is shown.

The operation of this embodiment will be described in more detail below with reference to FIGS. 1 and 2.

In the tracking device 10 of FIG. 1, the cutting position is changed so as to separate the product sheet and the defective portion into separate pieces. That is, in the strip steel plate 5, as shown in FIG.
In order to separate and cut the planned cutting positions 14c and 15c of the product sheet portion (so-called defect-occurring portion) including the defects 13a and 13b of FIG.
Planned cutting position 14 of the product sheet portion including 3a and 13b
The cutting positions are created from the cutting end positions 14b and 15b of the product sheet located immediately before c and 15c as follows. That is, as shown in FIGS. 2B and 2D, the defect 13
Cutting positions 16c or 17c, 17d, 17 for cutting the number of sheets (for example, 1 or 3) necessary to separate the portion including a and 13b with the separately set defect removal length l
create e.

In this way, after cutting the number of sheets which can be separated with the defect removal length l, the cutting position 16d, 16e or 17f is determined again by the cutting length L of the product.

In the tracking device 10, the signal S6 relating to the cutting position of the strip-shaped steel plate 5 produced as described above is sent to the shear control device 11 and the cut sheet distribution control device 12.

The shear control device 11 receives the signal S6 and operates the cutting machine 6 at the cutting position corresponding to the signal S6 to sequentially cut the strip steel plate 5. Further, the cut sheet distribution control device 12 controls the operation of separately piling the sheet cut with the product cutting length L and the sheet cut with the defect removal length l to separate a defect, that is, a defective portion. Further, for the sheet having the defect removal length l, the operation of piling the sheet including the defective portion and the sheet not including the defective portion separately is also controlled.

The present invention is not limited to the above-described embodiment, but various modifications are possible, and the object to be cut is not limited to the strip steel plate.

[0033]

According to the present invention, a flaw inspection device is provided in front of the band-shaped material cutting machine, and the inspection result of the flaw inspection device is displayed at the subsequent stage of the flaw inspection device in synchronization with the progress of the band-shaped material. Since a defect indicator that does this is provided to enable correction and addition of defect inspection by visual judgment, it is possible to utilize the advantages of both and to accurately recognize the defect position. Further, by using the result, a tracking device and a shear control device for separating and cutting the product sheet and the defect occurrence site are arranged, and the product and the defective part are separated and piling according to the information of the tracking device. Since the sorting device is provided, the defect and the product can be accurately separated. Further, since it is not necessary to carry out unnecessary marking on the sheet to be separated, there is an excellent effect that the separation sheet can be easily diverted.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of a configuration of an embodiment of the present invention.

FIG. 2 is a diagram showing a cutting pattern of a strip-shaped steel sheet performed by using an example of the present invention.

[Explanation of symbols]

 1 ... Defect inspection device 2 ... Inspection table 3 ... Visual determination result input device 4 ... Length measuring roll 5 ... Strip steel plate 6 ... Cutting machine 9 ... Pulse counter 10 ... Defect position tracking device 11 ... Shear control device 12 ... Cutting sheet distribution control Device 13 ... Host computer

Claims (2)

[Claims] 1. A method of removing a defective portion of a strip-shaped material when the strip-shaped material is cut into a predetermined length to collect a product sheet, the strip-shaped material being detected while detecting a delivery amount of the strip-shaped material. Detects defects on the material surface with a flaw inspection device, displays the defect position of the strip-shaped material surface detected by the flaw inspection device on a flaw display in synchronization with the flow of the strip-shaped material, and a person on the inspection table The defect position signal corresponding to the result of visually determining the defect, the surface defect detection signal sent from the flaw inspection device, and the sending amount signal are tracked, and the sheet is cut according to the tracking result,
A method for removing a defective portion on a surface of a band-shaped material, which comprises dividing a cut sheet into a product sheet and a defective portion sheet. 2. A device for removing a defective portion of a strip-shaped material when the strip-shaped material is cut into predetermined lengths to collect a product sheet, and a length measuring roll for detecting a delivery amount of the strip-shaped material. A flaw inspection device for detecting defects on the surface of the belt-shaped material, which is provided in front of a cutting machine for cutting the belt-shaped material, an inspection table provided between the flaw-inspection device and the cutting machine, At a position visible from the table, a flaw indicator that displays the defect position of the steel plate surface detected by the flaw inspection device in synchronization with the flow of the strip-shaped material, and the result of the human visually determining the defect on the inspection table. Tracking is performed by receiving an input device for inputting, a surface defect detection signal sent from the flaw inspection device, a sending amount signal sent from the length measuring roll, and a defect position signal sent from the input device. Tiger King device, shear control device that controls the cutting machine by receiving the output of the tracking device, and cut sheet distribution control device that distributes the cut sheet by receiving the output of the tracking device into a product sheet and a defective portion sheet An apparatus for removing a defective portion of a belt-shaped material, comprising: