KR20090026089A - Apparatus for marking a band, and method of doing the same - Google Patents

Abstract

A marking device for a binding band is provided to perform the clear marking in which the contrast is improved. A marking device for a binding band comprises: a substrate formation device for forming the substrate coating on the binding band; a laser marker performing the laser marking on the substrate coating formed with the substrate formation device; and a carrier way(74) for returning the binding band in the process of arranging the binding band along the surrounding of the binding object.

Description

Marking device for binding band and its method {APPARATUS FOR MARKING A BAND, AND METHOD OF DOING THE SAME}

The present invention relates to a marking device for a binding band and a method for marking the binding band for binding a binding object such as a coil.

For example, conveyance of the steel plate in an iron manufacture is performed in the state which wound the steel plate in coil shape. In this way, the binding band 1001 is fastened along the outer circumference of the coil 1000 in order to prevent the coil wound around when the steel sheet is wound and transported in a coil shape.

In addition, in the necessity of rationally distributing the coil, as shown in FIG. 25, it is common to mark information such as the ID of the coil 1000 on the surface of the coil 1000 or to attach a label on which the information is printed on the coil.

In recent years, however, steelmakers have been forced to not print directly on the outermost surfaces of coils at the request of end users (e.g. automobile manufacturers). In the past, the end user discarded the iron plate on the outermost surface, but recently, the iron plate on the outermost surface has also been used as a product material.

This forced the labeling and printing of the binding bands.

For example, Patent Documents 1 and 2 disclose techniques for binding a coil and laser marking the binding band.

[Patent Document 1] Japanese Unexamined Patent Publication No. 2007-50903

[Patent Document 2] Japanese Unexamined Patent Publication No. 2006-293844

However, in the technique disclosed in Patent Documents 1 and 2, printing is performed directly on the binding band with a YVO ₄ laser, which has the following problems.

(1) It is not easy to find the printing point in the post process because the contrast between the printing and background is very bad.

(2) Since the contrast between the print and the background is very bad, there is a possibility that the accuracy of character readout or automatic barcode readout in the post-process is very low.

(3) Since the focusing depth of the laser becomes within 0.5 mm, it is necessary to determine the position very strictly.

(4) When the binding band is rusted, the print is peeled off with rust, so the print content cannot be recognized.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a marking device for binding bands and a marking method for binding bands capable of performing a highly recognizable marking.

In order to solve the above problems, in the marking device for the binding band of the present invention, in the marking device for the binding band which performs marking on the binding band for binding the object to be bound, it is not possible to form an undercoat on the binding band. And a laser marker for carrying out laser marking on the undercoat formed by the above forming apparatus.

In the marking device for the binding band of the present invention, the marking device for the binding band is used in parallel to the band binding device for binding the binding band to the object to be bound, and the band binding device binds the binding band before binding. In the process of arrange | positioning around water, it has a conveyance path for conveying the said binding band, The formation of the base coat by the said base forming apparatus in the state in which the binding band is conveyed in the said conveyance path, and the said laser marker Laser marking is one preferred example.

In the marking device for the binding band of the present invention, the marking device for the binding band is used in parallel with the band binding device for binding the binding band to the object to be bound, and the band binding device avoids the binding band before the binding. The laser marker has a conveying path for conveying the binding band in the process of arranging around the binding object, and the conveyance of the binding band is temporarily stopped in the process of conveying the binding band in the conveying path. Laser marking is also a preferred example.

In the marking device for the binding band of the present invention, the marking device for the binding band is used in parallel with the band binding device for binding the binding band to the object to be bound, and the band binding device avoids the binding band before the binding. In the process of arrange | positioning along a circumference | surroundings of a binding object, it has a conveyance path of the frame shape for conveying the binding band, The said marking band marking apparatus is formed in the said conveyance path, The base forming apparatus and the said laser marker are equipped with It is also a preferable example to provide a marking head and a moving mechanism which moves the marking head in the direction of approaching and away from the to-be-bound object located inside the said conveyance path.

Moreover, the band binding system of this invention is characterized by including the marking apparatus for the binding band of this invention, and the band binding apparatus which binds a binding band to a to-be-bound object.

In addition, in the marking method for the binding band of the present invention, in the marking method for the binding band for marking the binding band for binding the object to be bound, the first step of forming a base coating on the binding band, and the first process It characterized in that it comprises a second process for performing laser marking on the undercoat formed.

In the marking method for the binding band of the present invention, in order to arrange the binding band before the binding along the periphery of the object to be bound, the first and the second bands are being conveyed in a conveyance path for conveying the binding band. It is a preferred example to carry out the process.

Furthermore, in the marking method for the binding band of the present invention, in order to arrange the binding band before binding along the circumference of the object to be bound, the conveyance of the binding band is carried out in the process of the binding band being conveyed in the conveying path for conveying the binding band. It is also a preferable example to perform the second process in a state of temporarily stopping.

In the marking method for the binding band of the present invention, it is also a preferable example to carry out the first and second steps after the object to be bound is bound by the binding band.

According to the present invention, since the bottom coating is formed by laser marking after the bottom coating is formed on the binding band, clear marking with good contrast can be performed. Therefore, the recognition of marking can be improved.

EMBODIMENT OF THE INVENTION Hereinafter, embodiment which concerns on this invention is described with reference to drawings.

[First Embodiment]

In the first embodiment, an example of marking the binding band will be described while conveying the binding band before binding to arrange around the coil (bound object).

FIG. 1: is a figure which shows the structure of the band binding system 100 which concerns on 1st Embodiment.

As shown in FIG. 1, the band binding system 100 marks the band banding device 4 that binds the band 3 (see FIG. 8) to the coil 2 and the band 3. It is comprised including the marking apparatus 1 for binding bands to implement.

As shown in FIG. 1, the marking device for binding bands 1 which concerns on this embodiment is used in the state provided in parallel with the band binding device 4. As shown in FIG.

First, the structure of the band binding apparatus 4 is demonstrated.

The band binding device 4 prevents the coil 2, which has been wound, from being loosened by binding the binding band 3 along the outer circumference of the coil (bound material) 2 of the steel sheet, thereby preventing the external dispenser (not shown). A guide roller 9 for guiding the binding band 3 supplied from the sheet), and when the binding band 3 is bound, the binding band 3 is pressed against the coil 2 or the binding band 3 after binding. The binding head 10 which cut | disconnects and the chute (which comprises a conveyance path) 11 which guides the binding band 3 along the outer periphery of the coil 2 are provided.

Moreover, the binding band 3 consists of steel materials, for example.

The binding head 10 is, for example, a direction closer to the coil 2 held by the holding part 12 (the arrow A direction in FIG. 1) and the direction away from the guide roller 9 with the rotational axis of the same axis as the supporting point. It can be made to rotate in the direction of arrow B of FIG.

The chute 11 is arranged like a frame of polygon (for example, hexagonal shape as shown in FIG. 1) and arranged so as to surround the coil 2 arranged on a die (not shown).

2 is an enlarged perspective view of a portion of the chute 11.

As shown in FIG. 2, the chute 11 includes a main body frame 70 which is, for example, a polygonal frame (for example, a hexagon), and a plurality of gates 71 formed along the main body frame 70. have.

As shown in FIG. 2, the binding band 3 passes through the chute 11 between the inner circumferential surface of the main frame 70 and the gate 71. Hereinafter, the passage of the binding band 3 between the inner circumferential surface of the main body frame 70 and the gate 71 is called a conveyance path 74.

For example, as shown in FIG. 2, the body frame 70 is made of steel having an inverted '-' shape.

On the other hand, the gate 71 has a cross-sectional shape of approximately 'L' shape. As shown in FIG. 2, the gate 71 has a pair of left and right pairs of pairs of gates 71 in the longitudinal direction of the body frame 70. It is formed along.

As shown in FIG. 2, each gate 71 is fixed to the side surface of the body frame 70 by a pin 73 through which the compression spring 72 is inserted. For this reason, the spring 72 is in a compressed state between the head of the pin 73 and the side surface of the gate 71.

Accordingly, when the binding band 3 is pulled by the strong force in the direction of arrow 'I' of FIG. 2, the paired gates 71 are opened to the left and right in the direction of arrows J and K, respectively. It is intended to be drawn in the 'I' direction.

In addition, the chute 11 has a structure in which the arrangement portion of the binding head 10 and the arrangement portion of the main body portion 14 described later in the marking band for binding band 1 are cut out, so that the binding head 10 The arrangement and the operation or the arrangement of the main body 14 are prevented.

Next, the structure of the banding marking apparatus 1 which concerns on this embodiment is demonstrated.

The marking device for the binding band 1 includes a marking unit 5 for marking (factor) on the binding band 3, a paint unit 6 for supplying paint to the marking unit 5, An operation unit 8 that accepts an operation by an operator, a display unit 40 that performs various displays on operations, and the like, a control unit that controls operations of the display unit 40, the paint unit 6, and the marking unit 5 ( 7) is provided.

3 is an enlarged view of the marking unit 5.

As shown in FIG. 3, the marking unit 5 includes a main body portion 14 fixed to the chute 11 and a pair of guide rollers 17 for guiding the binding band 3 in the main body portion 14. ), A bracket 15 fixed in the main body 14 to hold the guide roller 17 in a rotatable manner, an air cylinder 16 as an actuator to open and close a pair of guide rollers 17, and a binding Laser marker 18 for marking the band 3, and a base spray nozzle (base forming apparatus) for spraying the base material onto the binding band 3 before the marking by the laser marker 18 to form a base coat. (19) and the dryer 20 which dries the coating of the base sprayed to the binding band 3 with the base injection nozzle 19 is provided.

The guide roller 17 has a divided structure divided into two parts which are respectively located in front and inside in FIG. 3, and these two parts are opened and closed by the air cylinder 16. As shown in FIG. In other words, a gap is generated between the pair of parts of the guide roller 17 by moving the part located inward more inward while moving the part located forward more forward (the guide roller 17 is opened). . In addition, the gap between the pair of parts of the guide roller 17 is closed by moving the part located inward in the state in which the gap is generated to the front, and moving the part located in the front inward (guide roller ( 17) is closed).

The guide roller 17 has such an opening / closing structure in order to guide the binding band 3 toward the coil 2 after the marking so as to follow the outer circumference of the coil 2.

The lower jet nozzle 19, the laser marker 18, and the dryer 20 are formed inside the main body 14, respectively.

The ground spray nozzle 19 sprays the ground paint supplied from the paint unit 6 so as to have a uniform film thickness with respect to the binding band 3 located in the main body portion 14.

The dryer 20 prevents scratches from occurring in the underlying paint by instantly drying the undercoat with a warm air.

The laser marker 18 carbonizes the base material by irradiating a laser to form markings such as letters.

Here, the marking unit 5 is arrange | positioned so that the main-body part 14 may be located along one side of the chute 11.

In addition, the marking unit 5 is installed at a position that does not interfere with the binding head 10 or the like. For example, as shown in FIG. 1, the marking unit 5 is moved in the vicinity of the band binding apparatus 4 so that the main-body part 14 may be located along the side of the side opposite to the side where the binding head 10 is located. Fix it to

In the chute 11, a cutout is formed at the site where the main body 14 is fixed, and the main body 14 is attached to this cutout. In addition, the guide roller 17 is arrange | positioned in the position which can guide the binding band 3 near the center of the conveyance path 74 of the chute 11 as shown in FIG.

4 is a perspective view of the main body 14 viewed from the inner circumferential side of the chute 11.

As shown in FIG. 4, the main-body part 14 is the 1st casing 76 which accommodated the air cylinder 16, the laser marker 18, the lower injection nozzle 19, the dryer 20, etc., and a guide roller. (2) the second casing (77) which accommodated the said inner part, the 3rd casing (78) which accommodated the said front part of the guide roller 17, and these 2nd and 3rd casing (77, 78). The fixed plate-like portion 79 and a pair of strut portions 80 for fixing the plate-shaped portion 79 to the first casing 76 and supporting the main body portion 14 are provided. Doing.

As shown in FIG. 4, the chute 11 is cut so that the chute 11 is cut at the upper end and the lower end of the plate portion 79.

FIG. 5: is the front view which looked at the 2nd casing 77 and the 3rd casing 78 from the inner peripheral side of the chute 11, and the guide roller 17 was opened (left and right in the guide roller 17 in FIG. 5). A pair of parts are opened).

As shown in FIG. 5, in the state where the guide roller 17 is opened, the binding band 3 is positioned between the second casing 77 and the third casing 78, and in the state where the guide roller 17 is closed, the guide roller 17. The binding band 3 is guided to (17).

In addition, the plate-shaped portion 79 has an opening (not shown) for arranging a drive transmission mechanism (not shown) for transmitting the driving force generated from the air cylinder 16 to the second casing 77 and the third casing 78. Is formed.

Further, the plate-shaped portion 79 is sprayed with paint on the binding band 3 from the lower spray nozzle 19, sprayed with warm air from the dryer 20 to the binding band 3, and bound from the laser marker 18. Openings are formed so as not to interfere with laser irradiation to the band 3.

6 is a block diagram showing the configuration of the coating unit 6.

As shown in FIG. 6, the paint unit 6 includes a tank 31 for storing the base paint, a pump 32 for sending the base paint in the tank 31 to the base spray nozzle 19, and a base paint. It is comprised by the filter 33 which removes the foreign material contained in the process by which the base paint is sent from the pump 32 to the base injection nozzle 19. As shown in FIG.

In addition, the filter 33 may be provided between the tank 31 and the pump 32.

Of the base paints supplied to the base spray nozzles 19, the remaining paints not discharged from the base spray nozzles 19 are returned to the tank 31 again in accordance with the pressure of the pump 32.

7 is a block diagram showing the configuration of the control unit 7.

As shown in FIG. 7, the control part 7 carries out the main control part 51 which controls each component of the marking band 1 for binding bands collectively, and the lower part injection nozzle according to the instruction | indication of this main control part 51. FIG. The nozzle control part 52 which controls the operation | movement of (19), and the laser control part 53 which controls the operation | movement of the laser marker 18 according to the instruction | indication of the main control part 51 are provided.

The main controller 51 not only instructs the nozzle controller 52 and the laser controller 53, but also controls the operation of the pump 32 of the paint unit 6 and the dryer 20 of the marking unit 5. Operation control and display control of the display unit 40 are performed.

In general, the binding band marking device 1 constitutes a part of the coil 2 production line, and the main control unit 51 also performs data transmission and reception with a control device higher than the main control unit 51. do.

The nozzle control part 52 controls the film thickness of the base material sprayed on the binding band 3.

The laser controller 53 sets a print layout or the like by the laser marker 18 or controls printing operations in accordance with print data input from the outside.

The printing data means data indicating what printing should be performed.

Under the control of the main control unit 51, the display unit 40 displays, for example, the state of the binding band marking device 1 or the presence of an abnormality.

The operation part 8 is comprised as the graphic panel integrated with the display part 40, or is provided in parallel with the display part 40, and outputs the signal suitable for operation by an operator to the control part 7.

Next, the operation will be described.

First, the binding band 3 is started to be conveyed from the external dispenser (not shown) to the band binding device 4.

The binding band 3 enters into the conveyance path 74 of the chute 11 via the guide roller 9 and the binding head 10 in that order, and is conveyed in the conveyance path 74 as shown in FIG. . Thereby, the binding band 3 is conveyed in the chute 11 so that the outer periphery of the coil 2 may be followed.

Here, the chute 11 is provided with a sensor (not shown) for detecting that the tip of the binding band 3 has reached a position immediately near the marking unit 5 (for example, position C in FIG. 8). have. The binding band 3 is conveyed at a high speed (for example, about 800 mm to 2000 mm / second) until the sensor detects the tip of the binding band 3.

When the sensor detects that the tip of the binding band 3 has reached the position close to the marking unit 5, the conveyance of the binding band 3 is switched to a low speed (for example, about 30 mm to 100 mm / second). .

Then, as shown in FIG. 9, the front end of the binding band 3 enters the main-body part 14, and is guided by the guide roller 17. As shown in FIG. In addition, the guide roller 17 is closed previously.

When the first predetermined time elapses after the conveyance starts at low speed, the conveyance of the binding band 3 is continued, and as shown in FIG. 9, the injection of the underlying paint from the lower spray nozzle 19 to the binding band 3 is carried out. To start. Thereby, the base material is apply | coated with the uniform film thickness to the part near the front-end | tip part in the binding band 3, for example. The base paint is, for example, a color such as white with a large contrast to black.

The conveyance of the binding band 3 is continued, and when the 2nd predetermined time elapses after the injection of the base material starts, the injection of the base material is stopped. At this stage, the binding band 3 is formed with a film of the base paint over a predetermined range in the longitudinal direction.

Moreover, while continuing conveyance of the binding band 3, as shown in FIG. 10, warm air is blown from the dryer 20 to the binding band 3, and the base material on the binding band 3 is dried. The drying of the base paint in this way is to avoid the rubbing and rubbing of the base paint when the binding band 3 is conveyed in the subsequent step.

As shown in FIG. 11, conveyance of the binding band 3 is continued, and laser marking, such as an alphanumeric character, a logo, a barcode, and a two-dimensional code, is performed to the base material with the laser marker 18 during this conveyance.

Here, since the portion irradiated with the laser in the base paint on the binding band 3 is carbonized and discolored to black, the binding band 3 is marked with the background paint in the background.

Moreover, conveyance of the binding band 3 is continued, and as shown in FIG. 12, the front-end | tip part of the binding band 3 is led out from the lower side of the main-body part 14 to the chute 11. As shown in FIG.

Next, the pair of parts of the front and the inside of the guide roller 17 is opened with the air cylinder 16.

After that, as shown in FIG. 13, the binding band 3 is conveyed again at high speed until the front-end | tip of the binding band 3 reaches | attains the binding head 10. FIG. As a result, the binding band 3 is in a state of circumference around the coil 2 along the chute 11.

Next, as shown in FIG. 14, the binding head 10 is rotated in the arrow A direction, the front end of the binding band 3 is clamped by the binding head 10, and it adhere | attaches on the coil 2 in that state.

Next, as shown in FIG. 15, the binding band 3 is wound through the slit of the chute 11 by winding the binding band 3 in the arrow D direction with the winding device (not shown) which the dispenser has. 11) is drawn out of the conveyance path 74 so as to follow the outer circumference of the coil 2.

In addition, the part located in the main-body part 14 in the binding band 3 is led to the coil 2 through the space | interval of a pair of part of the front and the inside of the guide roller 17 here.

When the binding band 3 is in a state along the outer circumference of the coil 2, the winding device of the dispenser further rewinds the binding band 3 at a low speed and sufficiently tightens the coil 2 with the binding band 3. .

Next, the front end and the tail end of the binding band 3 (we refer to the position returned by circumference along the coil 2 when viewed from the front end) are sealed and the excess part is cut off.

Then, as shown in FIG. 16, the binding head 10 is rotated to the arrow B direction, and it returns to a standby position.

By the operation demonstrated above, as shown to a perspective view in FIG. 17 (a), the binding band 3 is bound together along the outer periphery of the coil 2.

As shown in FIG. 17B, which is an enlarged view of portion E of FIG. 17A, the binding band 3 is provided with a marking 62 having a base paint 61 as a base.

In addition, since the position of the marking 62 becomes near the front-end | tip of the binding band 3, there is no big deviation on the circumference of the coil 2. As shown in FIG.

According to the first embodiment described above, by irradiating a laser to an exclusive base coating material (white, etc.), the base coating is carbonized and black marking is performed, so that a clear contrast with good contrast can be performed.

In addition, since the thin film of the base material can be carbonized by laser irradiation to produce the printing contrast, clear printing contrast can be secured even if the laser converging focus is shifted by ± 10 mm.

In addition, there is an advantage that it is easy to find out where the marking is performed due to the presence of the underlying color in a later step.

Furthermore, even if the portion irradiated with the laser is exposed and rusted, the underlying paint remains around it, making it easy to visually confirm the print.

In addition, since the marking device 1 for a binding band is provided in parallel with the band binding device 4, band binding and marking can be performed in one place. Therefore, space can be saved.

In addition, since the laser marking is performed in the main body 14, protection against laser irradiation (for example, class 4) is achieved.

In addition, since the banding device 1 for the banding band is provided in parallel with the band banding device 4, the banding device 1 for the banding band can be incorporated as an option for the band banding device 4 that is already installed.

Moreover, since the marking is performed by the laser marker 19 while continuing the conveyance for arranging the binding band 3 along the outer periphery of the coil 2, a process can be shortened.

Second Embodiment

In the first embodiment described above, an example of marking the binding band 3 while conveying the binding band 3 has been described. In the second embodiment, the conveyance of the binding band 3 is once stopped. An example of marking is described.

In the case of this embodiment, the structure of the band binding system 100 is the same as that of 1st Embodiment mentioned above. In addition, the operation | movement of the band bonding system 100 differs from the above-mentioned 1st Embodiment only in the point demonstrated below, and the other point is the same as that of 1st Embodiment mentioned above.

That is, in this embodiment, marking is performed by the laser marker 19, as shown in FIG. 11, in the state which stopped conveyance of the binding band 3 temporarily.

According to the second embodiment as described above, the time required for the conveyance is as much as the temporary stop of the conveyance for arranging the binding band 3 along the outer circumference of the coil 2 as compared with the first embodiment described above. Although longer, in other respects, the same effects as in the above-described first embodiment are obtained.

Third Embodiment

In the first and second embodiments described above, an example in which marking is performed before the binding band 3 is bound to the coil 2 has been described. In the third embodiment, the binding band 3 is bound to the coil 2. After that, an example of marking is described.

FIG. 18 is a diagram illustrating a configuration of the band binding system 200 according to the second embodiment. In FIG. 18, the same code | symbol as the above-mentioned 1st Embodiment is attached | subjected to the same component as demonstrated in above-mentioned 1st Embodiment.

As shown in FIG. 18, the band binding system 200 is comprised including the band binding apparatus 4 and the marking band 201 for binding bands.

The band binding device 4 is the same as that of 1st Embodiment mentioned above.

The marking device 201 for the binding band includes a marking head 202 for marking (factor) on the binding band 3, a direction in which the marking head 202 is close to the coil 2 (arrow F direction), The moving mechanism 203 which moves (ascends) in the direction away from the coil 2 (arrow G direction), the paint unit 6 which supplies the paint to the marking head 202, and an operation by an operator. And a control unit 7 for controlling the operation of the display unit 40, the paint unit 6 and the marking unit 5, and the display unit 40 for performing various displays related to the operation and the like. Consists of.

19 is an enlarged view of the marking head 202.

As shown in FIG. 19, the marking head 202 includes a casing 204, a laser marker 18, a lower injection nozzle 19, and a coil detector 205.

The laser marker 18 and the lower part spray nozzle 19 are the same as 1st Embodiment mentioned above, and are arrange | positioned in the casing 204. FIG.

The coil detector 205 is a sensor that detects the surface of the coil 2 to adjust the distance from the coil 2 to the laser marker 18 to a predetermined distance.

In addition, in this embodiment, since the binding band 3 is not conveyed after spraying the base material to the binding band 3, it is not necessary to provide the dryer 20. FIG.

The coating unit 6, the operation part 8, the display part 40, and the control part 7 are the same as that of 1st Embodiment mentioned above. However, the control unit 7 also controls the operation of the moving mechanism 203.

The movement mechanism 203 consists of actuators, such as an air cylinder, for example.

In the above-described first embodiment, an example in which the marking unit 5 is installed (parallel installation) independently of the chute 11 has been described. In the third embodiment, the marking head 202 and the moving mechanism 203 are installed in the chute ( 11) to install.

That is, the marking head 202 is held by the chute 11 so as to be movable in the arrow F direction and the G direction, and the moving mechanism 203 is also fixed to the chute 11.

20 is a diagram for explaining the arrangement of the marking head 202 and the moving mechanism 203.

An angle α shown in FIG. 20 is an angle formed by a vertical line and a copper line of the marking head 202 moved by the moving mechanism 203.

This angle α is appropriately adjusted in accordance with the position at which the marking band 3 is to be marked. Moreover, marking can be performed in substantially the same position with respect to the coil 2 which has arbitrary diameters by adjusting this angle (alpha) suitably.

Next, the operation will be described.

In the case of this embodiment, the binding band 3 is first bound to the coil 2.

When the binding procedure is simply explained, the binding band 3 is first conveyed to the band binding device 4 from an external dispenser.

The binding band 3 enters into the conveyance path 74 of the chute 11 via the guide roller 9 and the binding head 10 in this order, and is conveyed in the conveyance path 74. The binding band 3 is conveyed at a high speed until the tip ends the chute 11 and reaches the binding head 10.

Next, as described in the first embodiment, the front end of the binding band 3 is held by the binding head 10 and brought into close contact with the coil 2 as it is, and then the winding band 3 is rewound by a winding device of the dispenser. The binding band 3 is led out of the conveyance path 74 of the chute 11 so as to follow the outer periphery of the coil 2.

Furthermore, it strongly rewinds at low speed with a winding device and fully tightens the coil 2 with the binding band 3.

Next, the front end and the tail end of the binding band 3 (the position returning around the coil 2 when viewed from the front end) are sealed and the excess part is cut off.

The binding head 10 is then returned to the standby position.

When the binding of the binding band 3 is completed in this manner, as shown in FIG. 21, the marking head 202 is bound to the binding band (by offsetting the chute 11 only a predetermined distance (for example, about 200 mm) in the arrow H direction. 3) placed in the center position.

Next, as shown in FIG. 22, the marking head 202 is moved (falling) toward the coil 2 with the moving mechanism 203. As shown in FIG. Here, the lowering operation is stopped at the timing when the coil detector 205 detects the surface of the coil 2.

Here, the coil detector 205 in the casing 204 in advance so that the distance between the marking head 202 and the coil 2 at the time of detecting the surface of the coil 2 by the coil detector 205 becomes an optimal distance for marking. ) Arrangement is controlled.

Next, as shown in FIG. 23, the base material is sprayed from the base injection nozzle 19 to the binding band 3. As shown in FIG. Here, when spraying the base material from the base injection nozzle 19 to the binding band 3 so that the base material is not injected not only to the binding band 3 but also to the surface of the coil 2, it is performed through a stencil.

Next, as shown in FIG. 24, the laser marker 18 performs laser marking with respect to the base material.

In this way, the binding band 3 is given marking based on the base material.

According to the third embodiment described above, the first and second embodiments described above are different from each other in that marking is performed after the binding band 3 is bound to the coil 2, but in other respects, the first and second embodiments are described above. The same effects as in the second embodiment can be obtained.

In each of the embodiments described above, an example was described in which the undercoat was carbonized by laser irradiation to perform marking on the background of the undercoat located around the irradiated portion. By exposing the surface of 3), the marking which can be recognized by the surface of steel and the contrast of paint can also be formed. In this case, the laser marker 18 may peel off the paint sprayed on the binding band 3 in the form of a letter and leave the paint on the background of the text on the contrary. It is also possible to leave the character part and to peel off only the background part.

In each of the above-described embodiments, the coil 2 of the steel sheet is exemplified as the object to be bound. However, the other one that requires the binding by the binding band 3 may be used.

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows the whole structure of the band binding system which concerns on 1st Embodiment.

2 is an enlarged perspective view of a portion of the chute.

3 is an enlarged view of a marking unit included in the marking device for the binding band according to the first embodiment.

4 is a perspective view of the main body of the marking unit as viewed from the inner circumferential side of the chute.

5 is a front view of the main body of the marking unit as seen from the inner circumferential side of the chute, showing a state where the guide roller is opened.

6 is a block diagram showing the configuration of the coating unit.

7 is a block diagram showing the configuration of a control unit.

8 is a series of diagrams for explaining the flow of operation, in particular showing a state in which a binding band is introduced into the chute.

FIG. 9 is a series of diagrams for explaining the flow of operation, particularly showing a state in which the base material is sprayed onto the binding band.

FIG. 10 is a series of diagrams for explaining the flow of operation, particularly showing a state in which the warm air of the dryer is blown onto the base material on the binding band.

FIG. 11 is a series of diagrams for explaining the flow of operation, particularly showing a state of marking the binding band.

12 is a series of diagrams for explaining the flow of operation, in particular showing the state after the marking is finished.

FIG. 13 is a series of diagrams for explaining the flow of operation, particularly showing a state in which a binding band is arranged to circumscribe a chute.

14 is a series of diagrams for explaining the flow of operation, in particular showing a state in which the fastening band is fastened to the coil.

FIG. 15 is a series of diagrams for explaining the flow of operation, particularly showing the state in which the fastening band is fastened to the coil.

FIG. 16 is a series of diagrams for explaining the flow of operation, particularly showing the state at the end of band binding. FIG.

In FIG. 17, (a) is a perspective view which shows the coil of the state which the band was bound to, and (b) is an enlarged view of the E part in (a).

Fig. 18 is a diagram showing the overall configuration of the band binding system according to the second embodiment.

It is an enlarged view of the marking head with which the marking apparatus for binding bands which concerns on 2nd Embodiment is equipped.

20 is a diagram for explaining an arrangement of a marking head.

21 is a top view for explaining the operation immediately after the band is bound.

22 is a view showing a state in which the marking head is moved in the vicinity of the coil for marking.

It is a figure which shows the state which sprays paint before marking.

24 is a diagram illustrating a state of marking.

It is a perspective view which shows the conventional marking example about the coil of a steel plate.

Explanation of symbols on the main parts of the drawings

1: Marking device for the binding band 2: Coil (bound material)

3: binding band 4: band binding device

5: marking unit 18: laser marker

19: lower injection nozzle (lower forming device) 11: chute (constituting the conveying path)

74: carrier path 100: band binding system

200: band binding system 201: marking device for the binding band

202: marking head 203: moving mechanism

Claims (9)

In the marking device for the binding band for marking on the binding band for binding the object to be bound, A base forming apparatus for forming a bottom coating on the binding band; Marking device for the binding band, characterized in that it comprises a laser marker for performing laser marking on the base coating formed by the base forming device. The method of claim 1, The marking device for the binding band is used by being installed in parallel with the band binding device for binding the binding band to the object to be bound, The band binding device has a conveying path for conveying the binding band in the process of arranging the binding band before the binding along the periphery of the object to be bound, A binding band marking apparatus, characterized in that the base coating is formed by the base forming apparatus and the laser marking is performed by the laser marker while the binding band is being conveyed in the conveying path. The method of claim 1, The marking device for the binding band is used by being installed in parallel with the band binding device for binding the binding band to the object to be bound, The band binding device has a conveying path for conveying the binding band in the process of arranging the binding band before the binding along the periphery of the object to be bound, The marking device for the binding band, wherein the laser marking is performed by the laser marker while the conveyance of the binding band is temporarily stopped in the process of conveying the binding band in the conveying path. The method of claim 1, The marking device for the binding band is used by being installed in parallel with the band binding device for binding the binding band to the object to be bound, The band binding device has a frame-shaped conveying path for conveying the binding band in the process of arranging the binding band before binding along the periphery of the object to be bound, The marking device for the binding band, A marking head formed on the conveying path and equipped with the base forming apparatus and the laser marker; And a moving mechanism for moving the marking head in a direction approaching and away from a binding object located inside the conveying path. Marking device for the binding band according to any one of claims 1 to 4, And a band binding device for binding the binding band to the object to be bound. In the marking method for a binding band which performs marking on the binding band which binds a to-be-bound object, A first process of forming a lower coating on the binding band, Marking method for a binding band, characterized in that it comprises a second process for performing laser marking on the undercoat formed by the first process. The method of claim 6, In the conveying path for conveying the binding band in order to arrange the binding band before binding along the circumference | surroundings of a to-be-bound object, the said binding band is performed in the state in which the binding band is conveyed. Marking method. The method of claim 6, The second step is carried out in a state in which the conveyance of the binding band is temporarily stopped while the binding band is being conveyed in the conveying path for conveying the binding band in order to arrange the binding band before the binding around the object to be bound. Marking method for the binding band, characterized in that. The method of claim 6, Marking method for the binding band, characterized in that the first and second processes are carried out after the binding object to the binding band.

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