JPH1035631A - Fitting method and device of tag and discrimination method of specified bar from bar group - Google Patents

Abstract

PROBLEM TO BE SOLVED: To accurately and securely weld an objective having a small area like the end face of a steel bar, in a welding device. SOLUTION: An objective is taken in as an image by a CCD camera 4 provided with an image-processing means 3 and the welding point is specified as a coordinates. The distance against the welding point is measured by a laser type transferable sensor 6 of a distance detector 5. A rod feeder 16 sends a welding rod Wr on the basis of these detected data to accurately position it to contact the objective.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for attaching a tag to a metal strip, an apparatus for attaching a tag, and a method for determining a strip protruding from a group of strips.

[0002]

2. Description of the Related Art As shown in FIGS. 32 and 33, when a metal strip Bs such as a bar or a section steel is shipped, the metal strip Bs is used.
For each bundle Ay in which a predetermined number of
A tag Tg indicating a lot number, a size, and the like is attached. The tag Tg is generally formed by printing, engraving, sticking a seal, or the like on a thin plate made of a steel plate or an aluminum plate, and forms one metal strip Bs in the bundle Ay.
At one end via a tagging wire Wr such as a wire.

Conventionally, such an operation of attaching the tag Tg is performed by
Everything was done manually.

[0004]

The mounting of the tag Tg is usually carried out immediately after being carried out of the refining device of the rolling equipment. At this point, the metal strip Bs is still hot (100 in the case of a strip). (Over ℃).
As a result, the working environment becomes quite harsh,
The only way to improve this is to leave the metal strip Bs until it cools. However, such a phenomenon only slows down the flow of the product, and cannot be adopted because the production efficiency and the adverse effect on the space are too large.

As a method of automating the tag attaching operation, it has been considered that the tag attaching wire Wr of the tag Tg is tied to the binding wire constituting the bundle Ay.
In this method, there is a problem that the tag Tg is dropped due to a crane movement when shipping the metal strip Bs,
As shown in FIG. 34, when the bundles Ay of the metal strips Bs are stacked, for example, a problem that the tag Tg becomes invisible (see arrow X) is expected, which is not suitable for practical use.

Further, the ends of the bundle Ay are not in a state of being flush with each other, and the metal strips Bs are usually displaced in the axial direction and rattled (the maximum amount of inflow / outflow is 50 mm).
Therefore, it is necessary to select the most suitable metal strip Bs for attaching the tag from among them, which makes the operation even more troublesome and makes automation difficult. It was with.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and is directed to a case in which a tag can be easily, quickly, reliably and firmly attached to a metal strip, and the metal strip is bundled. In addition, even when the end face of the bundle is rattled, a tag mounting method and a tag mounting device capable of securely mounting the tag to one optimal metal strip in the bundle are provided. It is in.

[0008]

According to the present invention, the following technical measures have been taken in order to achieve the above object. That is, according to the first aspect of the present invention (tag attaching method), the welding point is detected by performing image processing on the end face of the metal strip, and the tagging wire is sent out toward the welding point.
One end of the tagging wire is welded to a welding point, and a tag is attached to the other end of the tagging wire.

In this manner, the welding point for the metal strip, that is, the welding adaptation position with respect to the end face of the metal strip (this may be the center of the end face or any other location) can be reliably detected. Then, it becomes possible to accurately measure the distance at which the tagging wire is fed to the welding point. That is, after detecting a welding point for a metal strip, it is possible to detect a distance to the welding point in advance, and to send out the tagging wire based on the detected distance (claim). Item 2).

In this way, in supplying the tagging wire to the metal strip, extremely high-precision positioning can be performed so that the two are brought into a precise but not abutting state. In addition, since the metal strip and the tagging wire are welded, the mounting strength of the tag to the metal strip can be increased, and the mounting operation can be simplified. Therefore, automation of all operations is also possible.

The material, cross-sectional shape, size and the like of the metal strip are not limited at all. Accordingly, the material, wire diameter, etc. of the tagging wire can be changed as appropriate. In addition,
The welding wire can be used as it is as the tagging wire, but a normal wire can also be used separately. The tagging wire may be prepared to be cut to a predetermined length from the beginning, or may be cut after welding by welding means or after attaching a tag by tag coupling means.

The welding is preferably electric welding, but may be gas welding. The tag may be attached to the tagging wire from the beginning (before welding), or may be attached to the tagging wire after welding to the metal strip. This attachment can be performed by welding or may be performed by tying.

In the meantime, when the metal strip is formed into a bundle of a plurality of metal strips, the above-mentioned first and second aspects are preferred.
For the basic procedure described in, of the following two procedures,
It is preferred to add either one. The first step is
In the detection of the welding point, the detection is performed on the metal strip included in a partial area or the entire area at the end of the bundle. Is performed individually between the welding points, and then the metal strip closest to the detected distance is selected. Then, after adding these procedures, the procedure after the delivery of the tagging wire is performed for the selected welding points of the metal strip (claim 3).

In the second procedure, prior to the detection of a welding point, an image of an end face of a metal strip included in a partial area or an entire area at an end of a bundle is processed to calculate individual cross-sectional areas. From among these, select a plurality of metal strips with a large cross-sectional area from these, detect the welding points for the selected metal strips, and target the welding points of the metal strips after the sending of the tagging wire. The procedure is performed (claim 4).

By adding such a first procedure or a second procedure, the most protruding metal strip can be selected from the bundle. That is, in the first procedure, a method is adopted in which after direct distance measurement to each welding point is performed, each measured value is compared and the closest metal strip is selected. In the second procedure, a method of measuring the cross-sectional area of each metal strip, comparing the sizes thereof, and adopting a method of judging that those having a large cross-sectional area are close in terms of distance is adopted. .

In either procedure, only one metal strip that is most protruding from the bundle is selected, and the tagging wire is welded to the welding point of the metal strip.
Even if the end face of the bundle is rattled, the operation for feeding or welding the tagging wire or the machine tool or the like does not collide with other metal strips and interfere. Therefore, there is an advantage that welding can be reliably performed.

On the other hand, according to the present invention described in claim 5 (a tag attaching method different from claims 1 to 4), a bundle of a plurality of metal strips is attached to an end portion of the bundle. The contacts of the book are pressed in the same bundle state, the tagging wire is sent out along the position coordinates in the bundle at the contact that has retreated first, and one end of the tagging wire is welded to the corresponding metal strip. In addition, a tag is attached to the other end of the tagging wire.

This method attempts to detect the coordinate position of the most protruding metal strip as the coordinate position of the contact by pressing the bundle of contacts against the end of the bundle of metal strips. is there. That is, this method does not need to perform image processing, and therefore does not need to detect a welding point. Therefore, there is an advantage that processing related to control and calculation can be simplified.

The present invention according to claim 6 (tag attaching device)
In the above, an image processing means capable of taking an end face of a metal strip as an image and performing arithmetic processing, a distance detecting means capable of detecting a distance to a welding point obtained by the image processing means, and a tagging wire for the metal strip And a supporting device for moving the line feeding means to a predetermined position with respect to the metal strip based on the image processing means and the distance detecting means, and the tagging wire is brought into contact with the metal strip. And a tag connecting means for attaching the tag to the tagging wire.

This configuration is required for implementing the tag mounting method of the first aspect. The image processing means may be configured to include a light projecting device for forcibly generating a shadow by illuminating the end face of the metal strip and making the contour clear. By doing so, the image processing can be performed accurately without being affected by the surrounding brightness and the like, and the calculation of the welding point can be performed accurately.

The distance detecting means has a non-contact type detecting part by a laser displacement sensor (claim 8), and a dummy body resembling a wire holding part for holding the sending out of a tagging wire is provided on an outer surface thereof. The one having a contact-type detection unit provided with a tactile sensor can be used.
In addition, in the non-contact type detection unit of the distance detection means, while distance measurement can be performed with high accuracy, it is necessary to repeat the distance detection for a plurality of metal strips by the same number of times, Therefore, the detection unit must be moved many times in the vertical and horizontal directions.

On the other hand, in the case where the detection unit is of a contact type, the distance is confirmed by actually moving the detection unit back and forth and checking whether or not the tip of the detection unit contacts the metal strip. In other words, if the outer peripheral surface touches the metal strip before the front end, the same operation may be repeated again by slightly shifting the detection unit in the vertical direction or the horizontal direction (corresponding to the amount of division). Therefore, the number of times the detector is moved in the up-down direction and the left-right direction can be extremely reduced, and there is an advantage that the distance can be detected quickly.

As further another means of the distance detecting means, a center contact and a side contact which are parallel to each other and which can move back and forth respectively, and a retreat which can detect that each of these contacts has retreated from the advanced state. It is also possible to use a configuration having a detector, wherein the center contact and the side contact are separated by the same degree as the radius of the wire holding portion that holds the sending of the tagging wire. 10).

This distance detecting means performs a simulation test of pressing, assuming that the position of the center contact is the feeding position of the tagging wire. That is, when the center contact and the side contact are simultaneously brought close to the metal strip, and the retreat detector of the side contact detects the retreat before the retreat detector of the center contact. In addition, it is designed to determine the failure of the simulated pressing. Because the distance that the side contact is away from the center contact is about the same as the radius of the wire holder that holds the tagging wire,
When the wire rod holding portion is actually brought closer to the metal strip along the coordinate position of the center contact, the wire rod holding section collides and interferes with the surrounding metal strip, which is different from the metal strip to be welded. It means that.

Therefore, also in the distance detecting means of this configuration, when the retreat detector of the side contact detects the retreat detector before the retreat detector of the central contact, the center contact and the side part are detected. Slightly shift the contact vertically or horizontally,
The same operation has to be repeated again. Therefore, the number of times the retreat detector is moved in the vertical and horizontal directions can be extremely reduced, and there is an advantage that the distance can be detected quickly.

On the other hand, the present invention described in claim 11 (claim 6)
In a tag mounting device different from the tenth aspect, a plurality of bundled metal strips can be independently retracted by pressing against a bundle of the plurality of bundled metal strips. Book contacts, a withdrawal detector capable of detecting that each of these contacts has withdrawn from the advanced state, wire feeding means capable of supplying a tagging wire to the metal strip, A support device for moving the line feed means to a predetermined position with respect to the metal strip based on the position coordinates determined from the child retreat detector,
It is characterized by having welding means for welding a portion where the tagging wire is in contact with the metal strip, and tag coupling means for attaching a tag to the tagging wire.

This configuration is required for implementing the tag mounting method of claim 5. According to a twelfth aspect of the present invention, in the method for automatically recognizing a protruding strip (finding the position of one end face in a bundled product), the detection end is directed toward the end face of the group of bound strips. A plurality of detectors existing in the same plane and arranged at the same interval are forwardly pressed together, and in the process of forwardly pressing, a strip member protruding from a distance from a certain position until a detector signal is detected. Is distinguished.

With this arrangement, the detector group is pressed against the end face of the group of bundled members by using a large number of detector groups whose detection ends are in the same plane and arranged at the same interval, and the detection is performed. The input order and input pattern of the signals obtained from the child groups can be processed by computer. In addition, this detector group can be mounted on an air cylinder, and at the same time, can be used for detecting a distance in a longitudinal direction to a target group of bound strips.
The projecting strip can be determined faster without providing a CCD image processing device and a laser displacement sensor.

According to a thirteenth aspect of the present invention, the discrimination is made by judging a projecting strip from a sequence signal applied to the detector in the process of forward pressing and a signal of a distance detected from the detector. . This makes it possible to more easily and reliably determine the projecting strip without providing a CCD image processing device and a laser displacement sensor.

According to the fourteenth aspect of the present invention, the first aspect of the present invention is provided.
According to the determination method described in 2 or 13, the welding point of the bound metal strip is detected, the tagging wire is sent out toward the welding point, and one end of the tagging wire is welded to the welding point, and A tag is attached to the other end of the tagging wire. According to the invention of claim 15, in the tag attaching method of claim 14, after detecting a welding point on the metal strip, It is characterized in that a distance to a point is detected, and a tagging wire is sent out based on the detected distance.

By doing so, the CCD image processing device,
It is possible to reliably and easily detect a welding point on a metal strip, that is, a welding adaptation position with respect to an end face of the metal strip (this may be the center of the end face or any other location) without providing a laser displacement sensor. . In addition, the mounting strength of the tag to the metal strip can be increased, and the mounting operation can be simplified.

[0032]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 2, the tag mounting apparatus 1 according to the present invention transports the metal strips Bs from a refining device (not shown) of a rolling facility in a state where a predetermined number of metal strips Bs are bundled into a bundle Ay. It is installed on the side of Road 2.

As shown in FIG. 1, one embodiment of the tag mounting apparatus 1 is an observation table 7 having an imaging section 4 of the image processing means 3 and a detection section 6 of the distance detection means 5. A supporting device 15 movably held at a desired position by a vertical moving table 10, a horizontal moving table 11, and a front and rear moving table 12, and a wire feed of a tagging wire Wr provided for the vertical moving table 10 of the supporting device 15. Means 16 and welding means 17.

Further, a tag connecting means 18 is provided adjacent to the supporting device 15 (only the tip of the welding means 17 is shown in FIG. 2).
The tag connecting means 18 cuts the tagging wire Wr after being welded to the metal strip Bs to a predetermined length, and attaches the tag Tg to the cut portion by binding or welding. Reference numeral 20 in FIG. 2 denotes a tag Tg supply device.

In this embodiment, the metal strip material Bs is a round bar steel having a diameter of 10 mm to 51 mm, gas shield arc welding is employed as the welding means 17, and the welding wire itself used in this welding is tagged with a wire Wr. Will be described. 3 to 5, in the image processing means 3, the imaging unit 4 is configured by a CCD camera or the like, takes in the end face of the metal strip Bs as an image, and calculates a predetermined point on the end face (for example, Centroid (center)
Position, etc.) and cross-sectional area. One point obtained by the image processing means 3 is defined as a welding point on the metal strip Bs.

The distance detecting means 5 is of a non-contact type in which the detecting section 6 is constituted by a laser displacement sensor. Then, with reference to a position separated by a predetermined distance from the bundle Ay, the image processing means 3 is moved from this reference position as described above.
The distance to the welding point obtained by the method can be detected. The reference position is set as a reset position of the support device 15 by the front and rear moving table 12.

The observation table 7 holding the imaging unit 4 and the detection unit 6 is moved forward and backward by the forward / backward driving tool 23 such as a rodless cylinder, etc., to the bundle Ay (retreat position). It is possible to change the position. The wire feeding means 16 includes a feeding device 25 and a guide tube 2 for guiding the tagging wire Wr from the feeding device 25.
6 and a wire holder 27 that is provided at the distal end of the guide tube 26 and holds the pointing direction of the tagging wire Wr.

In the reset state (standby state) of the wire feeding means 16, the length of the tagging wire Wr protruding from the wire holding portion 27 is adjusted to 15 mm. The tagging wire Wr supplied to the feeding device 25 may be stocked in a coiled winding state, or may be sent directly from a drawing process or the like. Welding means 17
Although the detailed structure is not shown, the line feeding means 16
The welding current can be applied to the wire holding portion 27 of the above. When the tagging wire Wr protruding from the wire holding portion 27 is hit against the metal strip Bs, or after that, automatic or manual switching is performed. Thus, the arc can be blown from the tagging wire Wr and welded to the metal strip Bs.

In the support device 15, the vertical moving table 1
Each of the 0, the left and right moving tables 11, and the front and rear moving tables 12 has a structure in which the sliding in the respective predetermined directions is guided by the linear guide 30 and the sliding is driven by the screw feed mechanism 31. Therefore, each of these units 10, 11,
By the predetermined combination of the respective sliding by the 12, the imaging unit 4 of the image processing unit 3, the detection unit 6 of the distance detection unit 5, and the wire rod holding unit 27 of the wire feeding unit 16 are opposed to the end faces of the respective metal strips Bs. It can be made to approach and separate from each other.

The tag mounting method according to the present invention will be described based on the tag mounting apparatus 1 having such a configuration. Initially, the front and rear moving table 12 of the supporting device 15 (see FIG. 1) is waiting at the reset position, and therefore, the detecting unit 6 of the distance detecting means 5 is positioned at the above-described reference position with respect to the end of the bundle Ay. ing. Further, in this state, the vertical moving table 10 and the horizontal moving member 11 of the support device 15 have also been reset, and as a result, as shown in FIG.
The bundle Ay is positioned at the center of the end of the bundle Ay. Then, the coordinates of the position of the imaging unit 4 at this time are set as the origin.

Next, the support device 15 raises the vertical moving table 10 by a predetermined height (for example, H) within a range not exceeding the radius R of the bundle Ay. Then, the image processing unit 3 captures the end face of each metal strip material Bs as an image by the imaging unit 4, and as shown in FIG. 7, individual metal strips included in the upper predetermined area Y at the end of the bundle Ay. For the material Bs, a welding point composed of the coordinates of the centroid (center) and the like is obtained by calculation.

Next, the support device 15 is mounted on each of the units 10, 1
1 and 12 are moved in a predetermined combination, and the detection unit 6 of the distance detection means 5 is made to sequentially coincide with the welding point of each metal strip Bs in the predetermined area Y. Then, each time the welding point is reached, the distance detecting means 5 performs distance detection. At this time, since the positional relationship between the detection unit 6 and the imaging unit 4 is known as a numerical value, the positioning of the detection unit 6 with respect to each welding point can be performed with high accuracy.

When the distance detection has been completed for all the target metal strips Bs in this way, by comparing these detected values, the closest one, that is, the bundle Ay, has the smallest distance. One protruding metal strip Bs is selected. Next, the support device 15 is again mounted on each of the units 10, 11, and 12.
Are moved in a predetermined combination, and the wire feed means 16 is moved to the welding point of the selected one metal strip Bs.
, Ie, the tag wire Wr. And the line feeding means 1
6, the tagging wire Wr is sent out.

At this time, since the positional relationship between the wire holder 27 and the imaging unit 4 is known as a numerical value,
The positioning of the wire holder 27 with respect to the welding point can be performed with high accuracy. Since the positional relationship between the wire holder 27 and the detector 6 is also known as a numerical value, it is possible to calculate an accurate distance for sending the tagged wire Wr from the wire holder 27 to the welding point, and the wire feed is performed. Means 16
Can feed out the tagging wire Wr without excess or deficiency by an amount corresponding to the calculated distance.

Therefore, the tagging wire Wr is accurately brought into contact with the end face of the metal strip Bs. After this, welding of the tagging wire Wr and the metal strip Bs by the welding means 17, cutting of the tagging wire Wr by the tag connecting means 18 and attachment of the tag Tg are performed, thereby completing one cycle. .

As a method of selecting the most protruding metal strip Bs in the bundle Ay, the image processing means 3
However, when the end face of each metal strip Bs is captured as an image by the imaging unit 4, prior to determining the welding point for each metal strip Bs included in the predetermined area Y,
There is a method of calculating the cross-sectional areas A by calculation and adding a procedure for comparing these cross-sectional areas A.

That is, since the cross-sectional areas of the metal strips Bs are originally the same, those having a large cross-sectional area A as a captured image are located close to the distance, ie, protruding. It can be determined that there is. Therefore, as a result of comparing the cross-sectional areas A, the metal strip B exceeding a predetermined size
Since it is sufficient to select some s and detect the welding point only for these metal strips Bs, distance detection is performed for all target metal strips Bs, and the detected values are compared. There is an advantage that the selection time can be reduced as compared with the method of (1).

Further, by comparing the cross-sectional areas A as described above, it is possible to reliably select only the metal strip Bs having a clean cut end face, so that the subsequent welding can be reliably performed. There is also an advantage. If the resolution of the image processing means 3 is high, it is possible to select only one metal strip Bs having the largest cross-sectional area A. In this case, it is needless to say that this one metal strip Bs is selected. The welding point need only be detected for the metal strip Bs.

In addition, there is the following method as a method for selecting the metal strip Bs projecting most in the bundle Ay with higher accuracy. In other words, the end of the bundle Ay is meandering, for example, from the vicinity of the top to the left, to the left, to the pitch, to the right, to the right, to the pitch, and so on. The detecting section 6 of the distance detecting means 5 is moved in accordance with the scanning pattern. Then, during this movement, distance detection is performed with a 1/2 mesh with respect to the diameter of the metal strip Bs (that is, distance detection at two places per end face of one metal strip Bs). This is a method of selecting the closest one from the values.

In the scanning pattern, the pitch feed dimension in the downward direction is set so that it can be changed and adjusted according to the diameter of the metal strip Bs. Also, the moving distance in the left and right direction,
It can be changed and adjusted according to the diameter of the bundle Ay. The entire moving area may be the entire end face of the bundle Ay,
It may be only half or only the predetermined area Y described above.

In this way, provisional command, metal strip B
Even if the end surface of s is not a clean cut surface, the distance can be reliably detected. FIG. 8 shows an embodiment in which the contact detection unit 35 is used as the distance detection unit 5 instead of the non-contact detection unit 6 (see FIG. 3). The contact-type detection unit 35 is provided with tactile sensors 37 and 38 at the distal end and the outer peripheral surface of a dummy body 36 that resembles a wire rod holding unit 27 (see FIG. 4 and the like) that holds the feeding of the tagging wire rod Wr. It was done.

Therefore, when the detection unit 35 is advanced, the distance is confirmed by checking whether or not the tactile sensor 37 at the tip thereof comes into contact with the metal strip Bs. If the tactile sensor 38 on the outer peripheral surface of the detecting unit 35 touches the metal strip Bs first, not the tactile sensor 37 at the tip of the detecting unit 35, the detecting unit 35 is opposite to the touched side. Move slightly up and down or left and right to advance again.

In this case, the number of times the detector 35 is moved in the up-down direction and the left-right direction can be reduced, so that there is an advantage that the distance can be detected quickly. FIG. 9 shows an embodiment in which the welding by the welding means 17 is ensured and can be confirmed. That is, in the wire feeding means 16, the wire holding portion 27 has the tagging wire Wr.
It is assumed that brake means (not shown) is provided which can stop the sending out of the vehicle or release it slidably.

Further, on the rear side of the wire holder 27,
Inspection roller 4 rotatable in contact with tagging wire Wr
0 and an angle sensor 41 such as an encoder capable of detecting the rotation angle of the test roller 40 are provided. Therefore, if the wire holder 27 is advanced with the brake means released, only the wire holder 27 can be further advanced even after the tagging wire Wr is abutted against the metal strip Bs.

After welding, if the wire holding portion 27 is retracted while the brake means is operated, it is possible to apply a separating force from the metal strip Bs to the tagging wire Wr, and release the brake means. If the wire holder 27 is retracted while the wire is held, only the wire holder 27 can be retracted. Then, in these cases, the relative movement between the wire holder 27 and the tag wire Wr is detected by the angle sensor 41.

First, the wire holder 27 is advanced while the brake means is operated, and the tagging wire Wr is brought into contact with the metal strip Bs. Next, the brake means is released, and the wire holder 27 is advanced slightly. At this time, if the abutting state is normal, the tagging wire Wr retreats into the wire holding portion 27 by an L dimension as shown in FIG. 9B, and this is detected by the angle sensor 41. . However, when the angle sensor 41 is not detecting, the tagging wire Wr is not in contact, so that
The wire holder 27 is further advanced. By doing so, welding failure is prevented.

The welding position can be confirmed by conducting a continuity test between the tagging wire Wr and the metal strip Bs. On the other hand, at the end of welding, before the formed bead is cooled and solidified, the wire holder 27 is advanced slightly further with the brake means operated.
As a result, the tagging wire Wr sufficiently penetrates into the bead, and its mounting strength can be increased and ensured.

After the welding is completed, the wire holder 27 is retracted with the brake means released. At this time, if the angle sensor 41 detects that the tagging wire Wr is pulled out from the wire holding portion 27, it is confirmed that the welding is normal. Note that, instead of the angle sensor 41, a change in the tension of the tagging wire Wr or a change in the tagging wire Wr and the metal strip B
The presence or absence of conduction with s may be detected.

The tag mounting device 1 shown in FIG. 10 is similar to the tag mounting device shown in FIG. 1, and an observation table 7 having an image pickup section 4 of an image processing means 3 and a supporting device 15 for holding the observation table 7.
And a wire feeding means 16 and a welding means 17 for the tagging wire Wr provided for the vertical moving table 10 of the support device 15
And In the supporting device 15, the whole (most basic base) constitutes a traverser, and the moving holding structure and the driving structure of the vertical moving table 10, the left and right moving table 11, and the front and rear moving table 12 are slightly different. However, the basic movement as a whole is the same as that of FIG.

In the tag mounting device 1, the observation stand 7 is provided with a light projecting device 47 above the image pickup section 4, and the distance detecting means 5 is provided on the observation stand 7 as shown in FIG. It is designed to be provided at an adjacent position. The light projecting device 47 illuminates the end of the bundle Ay, the end surface of each metal strip Bs is bright, and a clear shadow is forcibly generated in the gap between the metal strips Bs. ing. Therefore, since the outline of each metal strip Bs becomes clear,
The image processing by the image processing means 3 can be accurately performed without being affected by the surrounding brightness and the like, and the calculation of the welding point can be accurately performed.

The distance detecting means 5 is shown in FIGS.
As shown in the figure, a plurality of (three in the illustrated example) sliding holders 50 using a fluid pressure cylinder and a sliding end of the center sliding holder 50 are held via a support rod 51. The center contact 52 and the side contact 5 held at the sliding end of the sliding holder 50 on both sides via the support rod 53.
4 and an entry detector (not shown) capable of detecting the entry operation of the central contact 52 and the side contact 54.

The retreat detector is, for example, a central contact 5
At the periphery of the position where the second and side contacts 54 have advanced, a reflective sensor is provided to detect the presence or absence of these. The center contact 52 is formed in a round bar shape, and the side contact 54 is formed in a semicircular shape surrounding the center contact 52. The distance R (see FIG. 14) at which the center contact 52 and the side contact 54 are separated from each other is approximately the same as the radius (1/2 of D shown in FIG. 12) of the wire holder 27 in the wire feeding means 16. Has been made. That is, the outer diameter of the circle formed by the side contacts 54 on both sides substantially corresponds to the diameter D of the wire holder 27.

FIG. 15 shows a dimensional relationship when the center contact 52 and the side contact 54 are brought into contact with a metal strip Bs having a diameter of 10 mm, and FIG. 16 shows a metal strip Bs having a diameter of 19 mm. Center contact 52 and side contact 54
Shows the dimensional relationship when abuts against. A double-acting cylinder is used for the slide holder 50. For example, the central contact 52 and the side contact 54 can be forcibly advanced or retracted for the convenience of control at the time of resetting or the like. It has become. Reference numeral 57 in FIG. 12 is a fluid supply port for this purpose.

Of course, the structure having such a fluid cylinder type slide holder 50 is not limited, and the center contact 52 and the side contact 54 are simply held in the extended state by a spring. You may make it. In the tag attaching device 1 having such a configuration, first, the image processing unit 3 receives the bundle Ay of the metal strips Bs (see FIG. 7) and includes the metal strips Bs at the end thereof in the predetermined area Y. Just the thing)
Are detected, and this procedure and method are substantially the same as those described with respect to the tag mounting device 1 of FIG. 1 except that the lighting by the light projecting device 47 is performed in parallel.

Then, the supporting device 15 detects one of the detected welding points, for example, as shown in FIG. 17, the welding point P ₁ (metal strip) located substantially at the center and at the top of the image. The central contact 52 and the side contact 54 of the distance detecting means 5 are simultaneously approached toward the material Bs). Thus, a simulation test is performed when the wire holder 27 of the wire feeder 16 is pressed.

At this time, if the retraction detector of one of the side contacts 54 detects the retraction before the retraction detector of the center contact 52, 5
Even if the wire holding portion 27 of the wire feeding means 16 is brought close to the bundle Ay of the metal strip Bs at the same coordinates as the wire 2, the wire holding portion 27
This means that the metal strip Bs, which is different from the metal strip Bs to be welded, impacts and interferes with the surrounding metal strip Bs. That is, it is possible to determine the failure of the simulation test.

Then, the support device 15 once retreats the center contact 52 and the side contact 54 of the distance detecting means 5. Of the metal strip material Bs in adjacency relative to the metal strip material Bs the welding point P _1, a little center contact 52 in order to face the one of the welding point P ₂ to the vertical or horizontal direction Then, repeat the same simulation test as above.

If a failure is determined in this simulation test, the following procedure is taken, for example. When the diameter d of the metal strip Bs is the same as or smaller than the diameter D of the wire holder 27 of the wire feeding means 16, FIG.
As shown in FIG. 8, from the origin position in the left-right direction (d + D) ×
2, the center contact 5 only in the vertical direction (d + D)
2 and the side contact 54 are moved. As Thus, the central contact 52, to match against the welding point P ₃ of the metal strip material Bs or even outside of the metal strip material Bs that are in adjacent relationship to the metal strip material Bs the welding point P ₂ become. Therefore, the third simulation test is repeated.

[0069] On the other hand, the diameter d of the metal strip material Bs is, in the case of larger diameter than the diameter D of the wire holding portion 27 of the wire feeding means 16, P for the first welding point P ₁ as shown in FIG. 19 the ₂ in order to face to the welding point P ₃ of the opposite next moves the center contacts 52 and side contact 54, then repeat the third time simulation test. By doing so, the position at which the retraction detector of the center contact 52 detects the retraction before the retraction detector of the side contact 54 (that is, the welding at which welding is actually enabled) Point) can be found relatively early.

Therefore, the support device 15 matches the axial position of the wire holding portion 27 in the wire feeding means 16, that is, the tagging wire Wr, with the found welding point. The subsequent procedure and method are described in FIG.
This is substantially the same as the case described with respect to the tag mounting device 1 of FIG. If the third simulation test shown in FIG. 18 or 19 also fails, the simulation test is repeated an appropriate number of times (about three times) in the same manner. It may be determined that an abnormality has occurred, and an operator may be notified appropriately.

Although not shown, the contacts 52, 54 and the like as shown in FIGS.
It is also possible to adopt a configuration in which the bundle is set in the same state as y and pressed against the end of the bundle Ay. In this case, the most protruding metal strip Bs is determined based on the coordinate position of the first contact member among the contacts 52, 54, etc.
Can be detected. If this method is adopted, the image processing means 3 can be made unnecessary. That is, there is no need for image processing and detection of welding points,
There is an advantage that processing related to control and calculation can be simplified.

FIGS. 20 to 31 show another embodiment. This embodiment does not require expensive equipment such as a CCD image processing apparatus, and employs a method of determining the protruding metal strip Bs more quickly.
The tag attaching device 1 shown in FIG. 1 has the wire feeding means 16 and the welding means 17 for the tagging wire Wr provided to the up-and-down moving table 10 of the supporting device 15 in the same manner as the above-described embodiment.
A group of detectors 61 is mounted above the welding means 17 of the tag mounting device 1.

The interval between the detectors 61 is the minimum base metal diameter (φ1
Even in the case of 0), three or more points can be contacted, and even at the minimum base material diameter (φ10), the welding position can be determined substantially at the center. The array of the detectors 61 is arranged in a lattice as shown in FIGS. 22 and 23.
If they are at equal intervals, they need not be lattice-shaped. This detector 6
As shown in FIG. 20 and FIG.
The cylinder lot 50a is attached to the tip of the cylinder lot 50a, and the tip of the group of detectors 61 is brought into contact with the end face of the bundled product by extending the cylinder lot 50a to detect the distance to the end face.

A method of determining the specific metal strip Bs of the present invention based on the group of the detectors 61 having such a structure will be described. First, the cylindrical slide holder 50 to which the detectors 61 are attached is driven in the direction of the end surface of the bundled product and pressed against the end surface of the metal strip Bs. When pressed, the O of detector 61
The N / OFF signal is taken into the computer. At this time, the input order and the distance to the end face of the bound metal strip Bs at the time of input are taken in. The drive in the end surface direction of the bundled product is stopped at a position advanced by 15 mm after the first detector 61 is turned on, and the detection is stopped. This is because the protrusion of the welding-tagged wire Wr from the welding means 17 is 15 (mm) (approximately 15 mm has been confirmed by experiment to be appropriate from the welding stability). , 15m
This is because detection of m or more is not necessary.

FIG. 2 shows an example of data collected in this manner.
4, shown in FIG. FIG. 24 shows a detection order arrangement in which numbers are assigned and stored in the order in which the detectors 61 are turned ON. here,
0 indicates that it did not turn on even if it advanced 15 mm from the position detected first. Alternatively, the order may be obtained from the detected distance without using the input order data.

FIG. 25 shows a detected distance arrangement in which the distance at which the detector 61 is turned ON is stored. Here, 0.0 is the first ON, and the others record the distance from the position. However, the distance from a certain position may be recorded.
The horizontal line (-) in FIG. 26 indicates that the detector 61 was not turned on. First, from the detection distance arrangement in FIG. 25, if the difference between the distances of adjacent points is 1.2 mm or less, it is determined that the material is one material, and one block is created. However, although it is 1.2 mm or less at an adjacent point, it is conceivable that the material is not a single material.
The X number (see FIG. 30) is determined, and the MA of the block is determined.
If a block exceeding the number X is created, the block is excluded from the target (if the example is a D10 size, 1 in FIG. 26).
Rows 3, 4, and 5 are excluded.) FIG. 26 shows the block arrangement thus made.

Next, the detection order for each block is determined by overlapping the block arrangement of FIG. 26 with the detection order arrangement of FIG. In this order, the highest order among the blocks is set as the order of the block. FIG. 27 shows the block order arrangement thus made. With this operation, distance evaluation is performed. Alternatively, instead of using FIG. 24, the shortest distance in the block in FIG. 26 may be extracted and compared for each block to determine the detection order for each block.

At the same time, in the block arrangement of FIG.
Count the number of detections per block. The blocks with the largest number of detections are ranked. At this time, if the numbers are the same, the order is the same. FIG. 28 shows a detection order arrangement thus formed. With this operation, the number of detections is evaluated. The overall order is determined by evaluating the block order arrangement shown in FIG. 27 and the detection number order arrangement shown in FIG. 28, thereby determining the priority order of the portions to be welded. If the total evaluation is the same, the one with the larger number of detections is given priority. This is because a larger number of detections is more advantageous when determining a welding position. FIG. 29 shows the overall order arrangement thus made.

From FIG. 29, it can be determined that the first place is the specific metal strip Bs in the metal strip Bs group. Therefore,
When welding the tagging wire Wr of the tag Tg to the end face of the bound metal strip Bs, the detector 61 group is pushed forward on the end face of the bound metal strip Bs group, and the metal strip Bs group is formed by the above method. The metal strip Bs protruding from inside is determined. After that, the position of the center of gravity of the protruding metal strip Bs is calculated, the welding torch is moved to the position of the center of gravity of the protruding metal strip Bs, welding is performed, and the tag metal wire Wr of the tag Tg is bound. It is attached to the end face of the material Bs.

Accordingly, the metal strip Bs projecting from the group of metal strips Bs is determined, and the determined metal strip Bs is determined.
The procedure for attaching the tagging wire Wr of the tag Tg to the end face is as shown in the flowchart of FIG. According to the method of determining the specific strip Bs and the method of attaching the tag as described above, the protruding strip Bs can be determined with inexpensive equipment without providing an expensive device such as a CCD image processing device. Therefore, it is possible to reduce the equipment cost of the automatic tagging apparatus 1 and the tag mounting time.

The present invention is not limited to the above embodiments.

[0082]

As is apparent from the above description, claim 1
In the described invention (tag mounting method), a welding point is detected by performing image processing on an end face of a metal strip, a tagging wire is sent out toward the welding point, and one end of the tagging wire is welded. Since the tag is welded to the point and the tag is attached to the other end of the tagging wire, the welding point for the metal strip, that is, the welding applicable position to the end face of the metal strip can be reliably detected. Therefore, it is possible to accurately measure the distance at which the tagging wire is fed to the welding point.

That is, after detecting the welding point for the metal strip, the distance to the welding point is detected in advance, and the tagging wire can be sent out based on the detected distance. Yes (Claim 2)
Therefore, the metal strip and the tagging wire can be accurately butted and welded. Therefore, the reliability of welding can be increased, and the mounting strength can be increased.

Since the metal strip and the tagging wire are welded, the tag does not drop off in the subsequent handling of the metal strip. In addition, since the mounting operation can be simplified, the entire operation can be automated. In addition, since the tag is always mounted in a state of protruding from the end of the metal strip in the extending direction, even when the metal strips are stacked, the tag does not become invisible.

In the case where a plurality of metal strips are bundled together, the most protruding metal strip is selected from the bundle by combining the detection of the welding point and the distance detection as described above. You can do it.
For example, a method of directly measuring distances to a plurality of welding points and then comparing the measured values to select the closest metal strip (claim 3), or measuring the cross-sectional area of each metal strip. There is a method of judging that those having a large cross-sectional area are also close in terms of distance, and selecting a metal strip closest in terms of distance among them (claim 4).

If such a method is adopted, the tagging wire can be welded to the welding point of the metal strip that is most protruding from the bundle, so that the end face of the bundle is rattled. Even if there is, the operation for sending out or welding the tagging wire or the machine or the like does not interfere with other metal strips. Therefore, there is an advantage that welding can be reliably performed.

On the other hand, according to the fifth aspect of the present invention (a tag attaching method different from the first to fourth aspects), a bundle of a plurality of metal strips is attached to an end of the bundle. The contacts of the book are pressed in the same bundle state, the tagging wire is sent out along the position coordinates in the bundle at the contact that has retreated first, and one end of the tagging wire is welded to the corresponding metal strip. In addition, since the tag is attached to the other end of the tagging wire, the coordinate position of the metal strip in the most protruding state can be easily detected as the coordinate position of the contact that retreats first. Therefore, there is an advantage that image processing and detection of a welding point are not required, and processing related to control and calculation can be facilitated.

On the other hand, in the present invention (tag attaching apparatus) according to claim 6, the image processing means capable of taking the end face of the metal strip as an image and performing arithmetic processing, and the welding point obtained by the image processing means. Distance detecting means capable of detecting the distance of the wire, wire feeding means capable of supplying a tagging wire to the metal strip, and moving the wire feeding means to a predetermined position with respect to the metal strip based on the image processing means and the distance detecting means. And a welding device for welding a portion where the tagging wire is in contact with the metal strip, and a tag coupling device for attaching a tag to the tagging wire. Accordingly, the tag mounting method of the first aspect can be implemented, so that the operation of mounting the tag on the metal strip can be automated, labor-saving, and the work efficiency can be improved.

The image processing means forcibly generates a shadow by illuminating the end face of the metal strip, and is provided with a light projecting device for clarifying the outline (claim 7). The image processing can be performed accurately without being affected by the welding point, and the calculation of the welding point can be performed accurately. The distance detecting means has a non-contact type detecting unit by a laser displacement sensor (Claim 8) and a tactile sensor on the outer surface of a dummy body resembling a wire rod holding unit for sending out a tagging wire rod. The one having a contact-type detection unit provided with (a ninth aspect) can be used.

If the detecting section of the distance detecting means is of a non-contact type, the distance can be measured with high accuracy, but on a plurality of metal strips, the distance detection needs to be repeated as many times as the number of metal strips. Therefore, the detection unit must be moved many times in the vertical and horizontal directions.
On the other hand, if the detection unit is a contact type, the distance is confirmed by actually moving the detection unit back and forth and checking whether the tip of the detection unit contacts the metal strip. When the outer peripheral surface touches the metal strip before the front end, the same operation may be repeated again by slightly shifting the detection unit in the vertical or horizontal direction. Therefore, the number of times the detector is moved in the up-down direction and the left-right direction can be extremely reduced, and there is an advantage that the distance can be detected quickly.

The distance detecting means has a center contact and a side contact which are parallel to each other and which can freely move back and forth, and a retreat detector which can detect that each of these contacts has retreated from the advanced state. In addition, it is also possible to use a configuration in which the center contact and the side contact are separated from each other by the same degree as the radius of the wire holding portion that holds the sending of the tagging wire (claim 10). Also, when the retraction detector of the side contact detects the retraction of the center contact earlier than the retraction detector of the center contact, the center contact and the side contact are slightly shifted in the vertical or horizontal direction. Then, the same operation may be repeated again. Therefore, the number of times the retreat detector is moved in the vertical and horizontal directions can be extremely reduced, and there is an advantage that the distance can be detected quickly.

On the other hand, the present invention described in claim 11 (claim 6)
In a tag mounting device different from the tenth aspect, a plurality of bundled metal strips can be independently retracted by pressing against a bundle of the plurality of bundled metal strips. Book contacts, a withdrawal detector capable of detecting that each of these contacts has withdrawn from the advanced state, wire feeding means capable of supplying a tagging wire to the metal strip, A support device for moving the line feed means to a predetermined position with respect to the metal strip based on the position coordinates determined from the child retreat detector,
It has the structure which had the welding means which welds the site | part which the tagging wire contact | abutted with the metal strip, and the tag coupling | attachment means which attaches a tag to a tagging wire. Since the tag attaching method can be implemented, automation of attaching the tag to the metal strip, labor saving, improvement of work efficiency, and the like can be achieved.

According to a twelfth aspect of the present invention, in the method for automatically recognizing a projecting strip (finding the position of one end face in a bundled product), A plurality of detectors whose detection ends are in the same plane and are arranged at the same interval are pressed forward together, and in the process of forward pressing, protruding from a distance from a certain position until a detector signal is detected. Since the strip material is determined, the protruding strip material can be determined with inexpensive equipment without providing an expensive device such as a CCD image processing device.

According to the thirteenth aspect of the present invention, the discriminating member is distinguished from a sequence signal applied to the detector during the forward pressing process and a signal of a distance detected from the detector. Further, without providing a laser displacement sensor, the projecting strip can be determined more easily and reliably. According to a fourteenth aspect of the present invention, a welding point of the bound metal strip is detected by the determination method according to the twelfth or thirteenth aspect, and a tagging wire is sent out toward the welding point, and one end of the tagging wire is detected. The tag is welded to the welding point and a tag is attached to the other end of the tagging wire. According to the invention of claim 15, in the method of attaching a tag according to claim 14, a welding point for the metal strip is provided. After detecting the distance, the distance to the welding point is detected in advance, and the tagging wire is sent out based on the detected distance. Therefore, the CCD image processing device and the laser displacement sensor are not provided. The welding point for the metal strip, that is, the welding adaptation position to the end face of the metal strip (this may be the center of the end face or other than that) can be reliably and easily performed. It can be detected, also it is possible to simplify the mounting operation. Therefore, reduction of the equipment cost of the automatic tagging device and
It is possible to shorten the time for attaching the tag.

[Brief description of the drawings]

FIG. 1 is a side view showing a main part of an embodiment of a tag attaching device according to the present invention.

FIG. 2 is a perspective view showing an installation state of the tag attaching device.

FIG. 3 is an enlarged side sectional view showing an imaging unit of an image processing unit and a detection unit of a distance detection unit in FIG. 1;

FIG. 4 is an enlarged view taken on line EE of FIG. 1;

FIG. 5 is an enlarged view taken on line FF of FIG. 1;

FIG. 6 is an operation explanatory diagram illustrating a tag attaching method according to the present invention in a state where an end of a bundle of metal strips is viewed from the side.

FIG. 7 is an operation explanatory diagram illustrating a tag attaching method according to the present invention in a state where an end of a bundle of metal strips is viewed from the front.

FIG. 8 is an enlarged view of a main part showing a contact type detection unit used for a distance detection unit.

FIG. 9 is an operation explanatory view showing an embodiment in which welding can be reliably performed and confirmed.

FIG. 10 is a side view showing another embodiment corresponding to a main part of the tag attaching device shown in FIG. 1;

FIG. 11 is an enlarged view taken along line GG of FIG. 10;

FIG. 12 is an enlarged view showing a main part of FIG. 10;

FIG. 13 is a view taken along the line HH in FIG. 10;

FIG. 14 is an enlarged view taken along line JJ of FIG. 12;

FIG. 15 is a view showing an example in which a distance detecting means having a center contact and a side contact is applied to a metal strip having a diameter of 10 mm.

FIG. 16 is a view showing an example in which a distance detecting means having a center contact and a side contact is applied to a metal strip having a diameter of 19 mm.

FIG. 17 is a diagram illustrating a procedure for detecting a welding point by the tag mounting device shown in FIG. 10;

FIG. 18 is a diagram illustrating a procedure following FIG. 17 when the diameter of the metal strip is equal to or smaller than the diameter of the wire holder of the wire feeding means.

FIG. 19 is a view showing a procedure following FIG. 17 in the case where the diameter of the metal strip is larger than the diameter of the wire holder of the wire feeding means.

FIG. 20 is a side view of a tagging device showing another embodiment.

FIG. 21 is a plan view of the tagging device.

FIG. 22 is a front view of a large number of detector groups in which detection ends exist on the same surface and are arranged at the same interval.

FIG. 23 is a side view of the multiple detector groups.

FIG. 24 is a detection order layout diagram in which numbers are assigned in the order in which detectors are turned on and stored.

FIG. 25 is a detection distance arrangement diagram in which the distance at which the detector is turned on is stored.

FIG. 26 shows that the distance difference between adjacent points is 1.2 mm from FIG.
FIG. 4 is a block layout diagram for forming one block in the following cases.

27 is a block order layout diagram in which blocks are ordered by overlapping FIGS. 24 and 26. FIG.

FIG. 28 is a detection number order arrangement in which the number of detections for each block is counted from FIG. 26;

FIG. 29 is a general order layout diagram obtained by giving the evaluation values of FIGS. 27 and 28;

FIG. 30 is a table showing the maximum number of blocks for each size when a block is created.

FIG. 31 is a flow chart illustrating an embodiment when adopted in a tagging apparatus.

FIG. 32 is a perspective view showing a conventional tag attaching operation.

FIG. 33 is an enlarged view of a main part of FIG. 20;

FIG. 34 is a perspective view illustrating a problem that occurs when a bundle of metal strips is stacked.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Tag attaching device 3 Image processing means 5 Distance detection means 6 Non-contact type detection part 16 Wire feed means 17 Welding means 18 Tag coupling means 27 Wire rod holding part 35 Contact type detection part 36 Dummy body 37 Tactile sensor (tip part) 38 Tactile sense Sensor (outer peripheral surface) 47 Projector 52 Central contact 54 Side contact 61 Detector Wr Tagging wire Tg Tag Ay Bundle y Bs Metal strip

Claims (15)

[Claims] 1. A welding point is detected by image-processing an end face of a metal strip (Bs), a tagging wire (Wr) is sent out toward the welding point, and one end of the tagging wire (Wr) is sent to the welding point. To the welding point,
A method for attaching a tag, comprising attaching a tag (Tg) to the other end of the tagging wire (Wr). 2. After detecting a welding point on the metal strip (Bs), a distance to the welding point is detected in advance, and the tagging wire (W) is detected based on the detected distance.
2. The tag mounting method according to claim 1, wherein the sending out of r) is performed. 3. When the metal strip (Bs) is formed into a bundle (Ay) obtained by combining a plurality of metal strips, the detection of the welding point is performed in a partial area or an entire area at an end of the bundle (Ay). , And the distance detection is individually performed between the reference position and all the welding points with reference to a position separated by a predetermined distance from the bundle (Ay). The closest metal strip (Bs) is selected from the detection distances, and the procedure after sending out the tagging wire (Wr) is performed for the welding point of the metal strip (Bs). 3. The method for attaching a tag according to claim 2, wherein: 4. When the metal strip (Bs) is formed into a bundle (Ay) in which a plurality of bundles are combined, prior to the detection of the welding point, a partial area or a portion is formed at an end of the bundle (Ay). Image processing is performed on the end faces of the metal strips (Bs) included in the entire area to determine individual cross-sectional areas by calculation, and a plurality of metal strips (Bs) having a large cross-sectional area are selected from these, and selected. A welding point is detected for the set metal strip (Bs), and a procedure after sending out the tagging wire (Wr) is performed for the welding point of the metal strip (Bs). Item 2. The tag mounting method according to Item 2. 5. A bundle (Ay) in which a plurality of metal strips (Bs) are put together, and a plurality of contacts (5) are attached to an end of the bundle (Ay).
2, 54) are pressed in the same bundle state, and the tagging wire (Wr) is sent out along the position coordinates in the bundle of the first retreated contact, and one end of the tagging wire (Wr) is applied. A tag (Tg) attached to the other end of the tagging wire (Wr) while being welded to the metal strip (Bs). 6. An image processing means (3) capable of taking an end face of a metal strip (Bs) as an image and performing arithmetic processing, and capable of detecting a distance to a welding point calculated by the image processing means (3). A distance detecting means (5) and a metal strip (B
s), a wire feeder (16) capable of supplying a tagging wire (Wr) to the wire feeder (16) based on the image processing means (3) and the distance detector (5).
a support device (15) for moving to a predetermined position relative to s)
Welding means (17) for welding a portion where the tagging wire (Wr) is in contact with the metal strip (Bs), and a tag coupling for attaching the tag (Tg) to the tagging wire (Wr) Means for attaching a tag. 7. The image processing means (3) includes a light projecting device (47) for forcibly generating a shadow by illuminating an end face of the metal strip (Bs) to clarify an outline. The tag attachment device according to claim 6, wherein the tag attachment device is provided. 8. The tag mounting device according to claim 6, wherein said distance detecting means has a non-contact type detecting portion based on a laser displacement sensor. . 9. A tactile sensor (37) provided on an outer surface of a dummy body (36) resembling a wire rod holding portion (27) for holding a feed of a tagging wire rod (Wr). The tag mounting device according to claim 6 or 7, further comprising a contact-type detector (35) provided with (38). 10. The distance detecting means (5) comprises a central contact (52) and a side contact (54) which are parallel to each other and are individually movable back and forth, and each of the contacts (52, 54) is advanced. A wire holder having a retreat detector capable of detecting retreat from the state, wherein the center contact (52) and the side contact (54) hold the sending of the tagging wire (Wr) The tag attaching device according to claim 6 or 7, wherein the tag attaching device is separated by a distance substantially equal to the radius of (27). 11. A bundle (Ay) in which a plurality of metal strips (Bs) are put together, and a plurality of contacts in a bundle state which can be independently retracted by being pressed against an end thereof. And supplying a tagging wire (Wr) to the metal strip (Bs), a retreat detector capable of detecting that each of the contacts (52, 54) has retreated from the advanced state. A possible wire feed means (16) and the first retracted contacts (52,5).
4) a supporting device (15) for moving the line feeding means (16) to a predetermined position with respect to the metal strip (Bs) based on the position coordinates determined from the retreat detector, and a metal strip (Bs). It has welding means (17) for welding a portion where the tagging wire (Wr) is in contact, and tag coupling means (18) for attaching a tag (Tg) to the tagging wire (Wr). A tag attaching device characterized by the above-mentioned. 12. A plurality of detectors (61) having detection ends existing in the same plane and arranged at the same interval are forwardly pressed toward the end face of the bundled strips (Bs). In the process of forward pressing, a specific strip is selected from a group of strips, wherein a strip (Bs) protruding from a certain position until a signal of the detector (61) is detected is determined. How to determine. 13. The discrimination is made by discriminating a strip (Bs) projecting from an order signal applied by the detector (61) in the process of forward pressing and a signal of a distance detected from the detector (61). A method for determining a specific strip from the group of strips according to claim 12, characterized in that: 14. The method according to claim 12, wherein a welding point of the bound metal strip (Bs) is detected and a tagging wire (Ws) is directed toward the welding point.
r), one end of the tagged wire (Wr) is welded to a welding point, and the tagged wire (Wr)
A tag (Tg) is attached to the other end of the tag. 15. After detecting a welding point for the metal strip (Bs), a distance to the welding point is detected in advance, and the tagging wire (Wr) is sent out based on the detected distance. The method for attaching a tag according to claim 14, wherein: