JPS59220603A - Surface inspecting apparatus - Google Patents

Abstract

PURPOSE:To accurately inspect the defect position of an object to be inspected, by storing detection data in the predetermined position of a memory part determined by a value based on the distance from a detector to measure the same in an operation processing part. CONSTITUTION:When a shearing system is operated and a coil E begins to advance, the inspection of the coil E is performed by various detectors D1-Dn. The detection data from the various detectors D1-Dn are inputted to a central processing apparatus A every when the coil E advances over a unit length (u) by the pulse signal from a pulse generator PG. The inputted detection data is stored in a slot through input circuits H1-Hn corresponding to the various detectors D1-Dn by the deviation of a pointer being the value obtained by dividing the distance from an input reference point S to the various detectors D1-Dn by the unit length (u) and read in a data editing part 12 on the basis of the indication of said slot. The data editing part 12 calculates the total number of defects K in the coil E which have passed on the basis of the read detection data.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to an improvement in a surface inspection apparatus for inspecting the surface condition, shape, etc. of an object to be inspected passing through a line.

[Technical background of the invention and its problems]

Conventionally, before shearing a coil passing through a line, the surface condition and shape of the coil have been measured using a surface inspection device. This surface inspection device installs various detectors such as coil front and back side detectors, thickness detectors, etc. on the line, detects defects in the coil from the data obtained from these detectors, and records this data. Ta. Therefore, the conventional surface inspection device can check the bottom surface condition of the coil,
The function was only to measure the shape and record the measured data, and from the data obtained from the various detectors, it was not possible to grasp the distance relationship between the detector and the shearing machine.

For this reason, it is not possible to process data to accurately determine the defect position on the coil and the defect position as seen from the line, and furthermore, it is impossible to control the line in real time to shear the coil at a predetermined position. Met.

[Purpose of the invention]

The present invention has been made based on the above circumstances, and its purpose is to obtain distance data between various detectors and a shearing machine, and to accurately inspect the position of defects, etc. on an object to be inspected. Our goal is to provide the following.

[Summary of the invention]

In the present invention, a plurality of types of detectors are arranged at predetermined intervals on a line, and detection data of an object to be inspected passing through the line obtained by these detectors is transferred to a reference position among these detectors. The detected data is stored in a predetermined position of the storage unit determined by the distance between the detected detector and the detector that obtained the detected data. This is a surface inspection device that measures body defects and shapes.

EXAMPLE Hereinafter, an example of the present invention will be described with reference to FIGS. 1 to 3. FIG. 1 is an overall configuration diagram when the surface inspection device according to the present invention is applied to a coil shearing system. On the line through which the coil E passes, various detectors DI and D for measuring the surface condition and shape of the coil E are installed at intervals of integral multiples of the unit length U (for example, 1 m). Here, t1 to t shown in FIG. 1 are reference positions. These detectors D1 to Dn include, for example, a coil front side detector for detecting defects on the front side (i.e., the upper side in FIG. 1) of the coil E, a coil back side detector, an ice detector, a coil width detector, and a coil thickness detector. meter, roll mark detector, visual inspection input device, etc., each measuring purpose and detector D! ~Dn is placed at a predetermined position according to its function. The shearing machine SH shears the coil E based on the obtained data, and is provided at a position where the distance from the detector Dn is an integral multiple of the unit length U, similar to the various detectors D1 to Dn. .

The central processing unit A has the function of calculating the detection data from the various detectors D1 to Dn to determine the shearing of the coil E by the shearing machine SH, and the man-machine interface B allows the operator to control the shearing system. The recording device C is, for example, a typewriter, which records the detected data.

The configuration of the central processing unit A1, the man-machine interface B, and the recording device C will be explained with reference to FIG. In addition, in FIG. 2, only detectors Dl and Dn are shown for convenience of explanation. Input circuits ■1 to Hn are
Detection data from various detectors D1 to Dn is used to generate a signal depending on the progress of the coil E. Lux generator PG
Coil E receives a pulse signal (unit length progression signal) from
is taken every time the unit length U advances.

Furthermore, the detection data is taken in by generating an interrupt signal synchronized with the unit length progress signal only when a defect or abnormality is detected. The detection data taken in by these input circuits El to En is stored in the storage section M of the central processing unit A. This storage section M has a tracking list (L) having a symmetrical list structure, and has a structure as shown in FIG.

This tracking list L has one slot containing detection data from various detectors D1 to Dn for a unit length of the coil. Data is stored. This storage section M is stored in the most upstream detector Dl of the line.
The tracking pointer points to the storage slot number of the data of the coil E that is passing through, and this is used as the input reference point S to sequentially store the detection data output from the detector D1. The storage unit M also stores the deviation of the pointer at a distance t between various detectors D2 to Dn shown in FIG.
2 to tn divided by the unit length U (an integer), and the detection data from the various detectors D2 to Dn is stored in the slot designated by this value. Note that t shown in FIG.
sh is the distance from the detector D1 to the shearer SH;
1j is the distance from the reference position S to the arbitrary position of the coil E, and tm is the distance from the tip of the coil E to the arbitrary position of the coil E.

The tracking pointer points to a slot number that is one smaller each time the coil E advances by a unit length U. Note that the detection data is deleted when the coil E passes the unit length U from the shearing machine SK at the most downstream position of the line.

The data display processing unit 10 determines the number of defects and the shape of the coil E based on the detection data of the various detectors D1 to Dn in one slot, and displays this on the display 1. , detection data is read from the tracking list L at a preset data display position F. In addition, the data editing section 12 performs arithmetic processing on the detected data and determines the total number of defects in the passed coil E, the coil EO evaluation - ζ shear, etc. Detected data is read from the tracking list L at (the position of the shearing machine SH). The detection data of the data display processing unit 10 and data editing unit 12 is read out at readout position F.

This is done by dividing the length of the coil E between G and the input reference point S by the unit length U and using the value (an integer) as the deviation of the pointer to specify the slot to be read.

The transmission section 13 transmits the edited data obtained by the data editing section 12 to other devices.

The input/output circuit 14 also sends the shear determination obtained by the data editing section 12 to the shearing machine SH, and inputs a signal to the data editing section 12 indicating that this shearing has been performed.

Next, the operation of the apparatus configured as described above will be explained. Once the shear system is activated and coil E begins to advance,
The coil E is inspected by various detectors D1 to Dn. Therefore, detection data from the various detectors D1 to Dn is input to the central processing unit A every time the coil E advances by a unit length U by a pulse signal from the pulse generator PG. Then, each input detection data is transmitted from the input reference point S through the input circuits H1 to Hn corresponding to the various detectors DI%Dn to the pointer. Store it as a deviation in the slot directed by this deviation.

be done. As a result, the detected data in the Cytosilagimbrist L changes cycyclically as the detected data is stored as the coil E advances. Therefore, the value obtained by dividing the length of the coil E between the data display position F and the input reference point S by the unit length U is specified as the pointer deviation, and the detected data is read and the display processing unit 10 The number of defects in the coil E is determined and displayed on the display 11. Furthermore, this detection data is used for data editing, transmission position G and input reference point S.
The value obtained by dividing the length of the coil E by the unit length U is specified as the deviation of the pointer, and the slot is specified and the data editing section 1
2. The data editing section 12 calculates the total number of defects in the coil E that has passed, based on the read detection data. The obtained editing data is then printed and displayed by a printer or the like.

Then, based on this edited data and the display data on the display 11, evaluation of the coil E, determination of shearing, etc. are performed.
Shearing of the coil E is performed by the shearing machine SH.

In this way, in this device, detection data from various detectors Dl-Dn arranged at intervals of the unit length U and an integral multiple thereof are transmitted to each heel detector Dl-Dn at a distance tl-Dn.
Since the value obtained by dividing tn by the unit length U is stored in the slot of the tracking list L as the pointer deviation, the detection data of the various detectors D2 to Dn correspond to the distances t1 to tn from the detectors. This is because it is possible to know exactly where the defect K in Kasi Coil E is located when viewed from the line.

Furthermore, detection data from a large number of detectors can be easily processed, and detectors can be easily added. Furthermore, since the detected data is stored in a unified tracking list, complex processing functions can be performed, and additional processing functions can be easily added. Then, real-time control of shearing, etc. in the shearing system becomes possible.

Note that the present invention is not limited to the above embodiment. For example, for a detector that requires detailed inspection of coil E, a new tracking list is created by dividing the unit length . At that point, the detected data may be read out, processed, and the results stored in the tracking list L. This allows detailed inspection of the coil E.

Furthermore, this device may be applied not only to the inspection of the coil E, but also to the inspection of the surface and interior of a plate glass in a plate glass line, and the inspection of the surface and shape of steel in a steel line, for example.

〔Effect of the invention〕

According to the present invention, various detectors are arranged at intervals of a unit length and an integral multiple thereof, and detection data from these detectors is captured every time the object to be inspected advances by a unit length and an integral multiple thereof. Since the data is stored in the tracking list based on the deviation determined by the arrangement of the various detectors, detection data with distance relationships between the various detectors and the shearing machine can be obtained.
It is possible to provide a surface inspection device that can accurately inspect the position of defects, etc. on an object to be inspected.

[Brief explanation of the drawing]

FIG. 1 is an overall configuration diagram when a surface inspection device according to an embodiment of the present invention is applied to a shearing system, FIG. 2 is a side view of the configuration of this device, and FIG. 3 is a configuration diagram of a storage section in this device. It is. 'J O...Data display processing unit, 1...Display device,
12...Data editing section, 13...Transmission section, 14...
・Input/output circuit, D1-Dn...Various detectors, H1-H
n... Input circuit, PG...Pulse generator, M...Storage unit, L...Tracking list, A...Central processing unit B...Man-machine interface, C
...recording device, SH...shearing machine, E...coil.

Claims (1)

[Claims] A plurality of types of detectors are arranged at predetermined intervals on the object to be inspected passing through the line to detect defects and shapes of the object to be inspected, and the detection data from these detectors are transmitted to the object to be inspected. an input section that captures data every time it advances a predetermined length;
a storage unit that stores the detection data taken in by the input unit in a position determined by a value based on a distance between a detector set as a reference position among the plurality of detectors and a detector that obtained the detection data; A surface inspection apparatus comprising: an arithmetic processing section that obtains defects and shapes of the object to be inspected based on the detection data stored in the storage section.