JP2009062086A - Marking apparatus for fastening band, and its method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a marking apparatus for a fastening band which can perform marking having a higher recognizability than a conventional one. <P>SOLUTION: This marking apparatus 1 for fastening band performs the marking to the fastening band which binds a coil 2. The marking apparatus 1 includes an underlayer jetting nozzle 19, and a laser marker 18. In this case, the underlayer jetting nozzle 19 forms an underlayer coating on the fastening band. The laser marker 18 performs the laser marking to the underlayer coating formed by the underlayer jetting nozzle 19. The formation of the underlayer coating and the laser marking are performed under a state in which the carrying of the fastening band is performed in a chute 11. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a binding band marking device and a method for marking a binding band that binds an object to be bound such as a coil.

  For example, conveyance of a steel plate in an iron manufacturer is performed in a state where the steel plate is wound in a coil shape. In order to prevent the coil from being unwound when the steel plate is wound and conveyed in this manner, the binding band 1001 is fastened along the outer periphery of the coil 1000 as shown in FIG.

  Further, from the necessity of rationally distributing the coil, as shown in FIG. 25, information such as the ID of the coil 1000 is marked on the surface of the coil 1000, or a label on which the information is printed is affixed to the coil. It was common to do.

  However, in recent years, steel manufacturers have not made direct printing or the like on the outermost surface of a coil in response to a request from an end user (for example, an automobile manufacturer). Conventionally, end users have discarded the outermost iron plate, but in recent years, the outermost iron plate has also been used as a product material.

  Therefore, it has been necessary to take a method of attaching a label to the binding band or printing.

For example, Patent Documents 1 and 2 disclose a technique for binding coils and performing laser marking on the binding band.
JP 2007-50903 A JP 2006-293844 A

However, the techniques disclosed in Patent Documents 1 and 2 have the following problems because the binding band is directly printed with a YVO ₄ laser.

  (1) Since the contrast between the print and the background is very poor, it is not easy to find the print location in the subsequent process.

  (2) Since the contrast between the print and the background is very poor, there is a possibility that the character reading and barcode automatic reading accuracy in the subsequent process may be extremely low.

  (3) Since the focal depth of focus of the laser is within 0.5 mm, very severe positioning is required.

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

  The present invention has been made to solve the above-described problems, and provides a binding band marking device and a binding band marking method capable of performing marking with higher recognizability than before. Objective.

  In order to solve the above-described problems, the binding band marking device of the present invention is a binding band marking device that performs marking on a binding band that binds an object to be bound, and a base forming device that forms a base coating on the binding band. And a laser marker that performs laser marking on the base coating formed by the base forming apparatus.

  In the binding band marking device of the present invention, the binding band marking device is used in combination with a band binding device that binds the binding band to an object to be bound, and the band binding device is used before binding. In the process of disposing the binding band along the periphery of the object to be bound, the base forming apparatus has a transport path for transporting the binding band, and the binding band is transported in the transport path. It is a preferable example that the undercoating is formed by the laser marking and the laser marking by the laser marker is performed.

  Further, in the binding band marking device of the present invention, the binding band marking device is used in combination with a band binding device that binds the binding band to the object to be bound, and the band binding device includes: A transport path is provided for transporting the binding band in the process of arranging the previous binding band along the periphery of the object to be bound, and the transport of the binding band is temporarily performed in the process of transporting the binding band in the transport path. It is also a preferable example that laser marking with the laser marker is performed in a state of being stopped.

  Further, in the binding band marking device of the present invention, the binding band marking device is used in combination with a band binding device that binds the binding band to the object to be bound, and the band binding device includes: In the process of arranging the previous binding band along the periphery of the object to be bound, it has a frame-shaped transport path for transporting the binding band, the binding band marking device is provided in the transport path, It is also preferable to include a marking head on which the base forming device and the laser marker are mounted, and a moving mechanism that moves the marking head in a direction toward and away from a binding object positioned inside the conveyance path. It is an example.

  The band binding system of the present invention includes the binding band marking device of the present invention and a band binding device that binds the binding band to the object to be bound.

  The binding band marking method of the present invention is a binding band marking method for marking a binding band for binding an object to be bound, in the binding band marking method, wherein a first process of forming a base coating on the binding band, And a second step of performing laser marking on the base coating formed by the one step.

  In the binding band marking method of the present invention, the binding band is transported in a transport path for transporting the binding band in order to arrange the binding band before binding along the periphery of the object to be bound. It is a preferable example that the first and second processes are performed in a state where the

  In the binding band marking method of the present invention, the binding band is transported in a transport path for transporting the binding band in order to arrange the binding band before binding along the periphery of the object to be bound. It is also a preferable example that the second process is performed in a state where the transport of the binding band is temporarily stopped in the process.

  In the binding band marking method of the present invention, it is also a preferable example that the first and second processes are performed after the objects to be bound are bound by the binding band.

  According to the present invention, after the base coating is formed on the binding band, laser marking is performed on the base coating, so that clear marking with good contrast is possible. Therefore, the recognizability of marking can be improved.

  Embodiments according to the present invention will be described below with reference to the drawings.

[First Embodiment]
In the first embodiment, an example will be described in which marking is performed on a binding band while transporting the binding band before binding along the periphery of the coil (bound object).

  FIG. 1 is a diagram illustrating a configuration of a band binding system 100 according to the first embodiment.

  As shown in FIG. 1, the band binding system 100 includes a band binding device 4 that binds the binding band 3 (see FIG. 8) to the coil 2, and a binding band marking device 1 that performs marking on the binding band 3. And is configured.

  As shown in FIG. 1, the binding band marking device 1 according to the present embodiment is used in a state where it is attached to the band binding device 4.

  First, the configuration of the band binding device 4 will be described.

  The band binding device 4 prevents the coil 2 from being unwound by binding the binding band 3 along the outer periphery of the coil (bound object) 2 of a steel plate, and an external dispenser (illustrated). A guide roller 9 that guides the binding band 3 supplied from the abbreviation), and a binding head that presses the binding band 3 against the coil 2 when cutting the binding band 3 or cuts the binding band 3 after binding. 10 and a chute (which constitutes a conveyance path) 11 that guides the binding band 3 along the outer periphery of the coil 2.

  The binding band 3 is made of, for example, a steel material.

  The binding head 10 has, for example, a direction approaching the coil 2 held by the holding portion 12 (in the direction of arrow A in FIG. 1) and a direction away from it (in the direction of arrow B in FIG. 1) using a pivot shaft coaxial with the guide roller 9 as a fulcrum. ) Can be rotated.

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

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

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

  As shown in FIG. 2, the binding band 3 is passed through the chute 11 between the inner peripheral surface of the main body frame 70 and the gate 71. Hereinafter, the path of the binding band 3 between the inner peripheral surface of the main body frame 70 and the gate 71 is referred to as a conveyance path 74.

  For example, as shown in FIG. 2, the main body frame 70 is made of a steel material having a U-shaped cross section.

  On the other hand, the gate 71 has a substantially L-shaped cross section, and as shown in FIG. Is provided.

  As shown in FIG. 2, each gate 71 is fixed to the side surface of the main body frame 70 by a pin 73 inserted through a compression spring 72. 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.

  Therefore, when the binding band 3 is pulled with a strong force in the direction of the arrow I in FIG. 2, the paired gates 71 open to the left and right in the directions of the arrows J and K, respectively, so that the binding band 3 is dragged out in the I direction. It has become.

  The chute 11 has a lacking structure in the arrangement portion of the bundling head 10 and the arrangement portion of a main body portion 14 to be described later of the bundling band marking device 1, and the arrangement and operation of the bundling head 10 and the main body portion. 14 is not hindered.

  Next, the configuration of the binding band marking device 1 according to the present embodiment will be described.

  The binding band marking device 1 includes a marking unit 5 that performs marking (printing) on the binding band 3, a paint unit 6 that supplies paint to the marking unit 5, an operation unit 8 that receives an operation by an operator, and an operation The display part 40 which performs various displays regarding these, and the control part 7 which controls the operation | movement of the display part 40, the coating material unit 6, and the marking unit 5 are comprised.

  FIG. 3 is an enlarged view of the marking unit 5.

  As shown in FIG. 3, the marking unit 5 is fixed in the main body 14 fixed to the chute 11, a pair of guide rollers 17 that guide the binding band 3 in the main body 14, and the main body 14. A bracket 15 that rotatably holds the guide roller 17, an air cylinder 16 as an actuator that opens and closes the pair of guide rollers 17, a laser marker 18 that performs marking on the binding band 3, and a base paint before marking by the laser marker 18 Are sprayed onto the binding band 3 to form a base coating, and a base spray nozzle (base forming apparatus) 19 and a dryer 20 for drying the base coating sprayed onto the binding band 3 by the base spray nozzle 19 are provided.

  The guide roller 17 has a split structure that is divided into two parts located on the front side and the back side in FIG. 3. These two parts are opened and closed by an air cylinder 16. That is, while the portion located on the back side is further moved to the back side, the portion located on the near side is further moved to the near side, whereby a gap is generated between the pair of portions of the guide roller 17 (guide roller 17). Open). Further, from the state where the gap is generated in this manner, the portion located on the back side is moved to the near side, while the portion located on the near side is moved to the far side, so that the pair of portions of the guide roller 17 are moved. The interval is closed (the guide roller 17 is closed).

  The reason why the guide roller 17 has such an open / close structure is that after the marking, the binding band 3 is led out to the coil 2 side so as to follow the outer periphery of the coil 2.

  The ground spray nozzle 19, the laser marker 18, and the dryer 20 are each provided inside the main body 14.

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

  The dryer 20 prevents the occurrence of scratches on the base paint by instantly drying the base paint with warm air.

  The laser marker 18 irradiates a laser to carbonize the base paint to form markings such as characters.

  Here, the marking unit 5 is arranged so that the main body 14 is positioned along one side of the chute 11.

  The marking unit 5 is installed at a position where it does not interfere with the binding head 10 or the like. For example, as shown in FIG. 1, the marking unit 5 is installed next to the band binding device 4 so that the main body portion 14 is positioned along the side opposite to the side where the binding head 10 is positioned.

  In the chute 11, a portion where the main body 14 is fixed has a chip as described above, and the main body 14 is incorporated in the chip. As shown in FIG. 2, the guide roller 17 is disposed at a position where the binding band 3 can be guided near the center of the conveyance path 74 of the chute 11.

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

  As shown in FIG. 4, the main body 14 includes a first housing 76 that houses an air cylinder 16, a laser marker 18, a ground spray nozzle 19, a dryer 20, and the like, and a second housing that houses the back portion of the guide roller 17. A housing 77, a third housing 78 that houses the front portion of the guide roller 17, a plate-like portion 79 to which the second and third housings 77, 78 are fixed, and the plate-like portion 79. A pair of support columns 80 that are fixed to the first housing 76 and support the main body 14 are provided.

  As shown in FIG. 4, the chute 11 is formed with a chipped portion so as to cut the chute 11 at the upper end and the lower end of the plate-like portion 79.

  FIG. 5 is a front view of the second housing 77 and the third housing 78 as viewed from the inner peripheral side of the chute 11 with the guide roller 17 open (in FIG. 5, a pair of left and right portions of the guide roller 17). Is open).

  As shown in FIG. 5, when the guide roller 17 is open, the binding band 3 is located between the second housing 77 and the third housing 78, and when the guide roller 17 is closed, the guide roller 17 is closed. Thus, the binding band 3 is guided.

  The plate-like portion 79 has an opening (not shown) for disposing a drive transmission mechanism (not shown) that transmits the driving force from the air cylinder 16 to the second casing 77 and the third casing 78. Is formed.

  Further, the plate-like portion 79 is prevented from spraying paint from the ground spray nozzle 19 to the binding band 3, blowing hot air from the dryer 20 to the binding band 3, and preventing laser irradiation from the laser marker 18 to the binding band 3. An opening is formed to prevent the opening.

  FIG. 6 is a block diagram showing the configuration of the paint 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 for pumping foreign matter contained in the base paint. And a filter 33 that is removed in the process of being sent out from the base 32 to the ground blowing nozzle 19.

  Note that the filter 33 may be provided between the tank 31 and the pump 32.

  Of the base paint supplied to the base spray nozzle 19, the remaining paint that has not been discharged from the base spray nozzle 19 is returned to the tank 31 again according to the pumping force of the pump 32.

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

  As shown in FIG. 7, the control unit 7 controls the operation of the base spray nozzle 19 in accordance with a main control unit 51 that comprehensively controls each component of the binding band marking device 1 and a command from the main control unit 51. And a laser control unit 53 that controls the operation of the laser marker 18 in accordance with a command from the main control unit 51.

  In addition to giving commands to the nozzle control unit 52 and the laser control unit 53, the main control unit 51 controls the operation of the pump 32 of the paint unit 6, the operation control of the dryer 20 of the marking unit 5, and the display unit 40. Perform display control.

  In general, the binding band marking device 1 constitutes a part of the production line of the coil 2, and the main control unit 51 transmits data between the control device higher than the main control unit 51. Also send and receive.

  The nozzle controller 52 controls the film thickness of the base paint sprayed on the binding band 3.

  The laser control unit 53 performs settings such as a print layout by the laser marker 18 and controls a print operation according to print data input from the outside.

  The print data is data indicating what kind of printing should be performed.

  The display unit 40 displays, for example, the state of the binding band marking device 1 and the presence / absence of abnormality under the control of the main control unit 51.

  The operation unit 8 is configured as a graphic panel integrated with the display unit 40 or is provided along with the display unit 40 and outputs a signal corresponding to an operation by the operator to the control unit 7.

  Next, the operation will be described.

  First, the transport of the binding band 3 from an external dispenser (not shown) to the band binding device 4 is started.

  As shown in FIG. 8, the binding band 3 enters the transport path 74 of the chute 11 through the guide roller 9 and the binding head 10 in this order, and is transported through the transport path 74. Thereby, the binding band 3 is conveyed along the outer periphery of the coil 2 in the chute 11.

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

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

  Thereafter, as shown in FIG. 9, the tip of the binding band 3 enters the main body 14 and is guided by the guide roller 17. The guide roller 17 is closed in advance.

  When the first predetermined time has elapsed after starting the conveyance at a low speed, the base coating is sprayed from the base spray nozzle 19 onto the binding band 3 as shown in FIG. 9 while continuing the transport of the binding band 3. Start. As a result, for example, the base paint is applied with a uniform film thickness to the vicinity of the tip of the binding band 3. The base paint is a color having a large contrast with black, such as white.

  Further, the transport of the binding band 3 is continued, and when the second predetermined time has elapsed from the start of the spraying of the base coating, the spraying of the base coating is stopped. At this stage, a film of a base paint is formed on the binding band 3 over a predetermined range in the longitudinal direction.

  Further, as shown in FIG. 10, while the conveyance of the binding band 3 is continued, hot air is blown from the dryer 20 onto the binding band 3 to dry the base paint on the binding band 3. The reason why the base coating material is dried in this way is to avoid the base coating from being rubbed and wiped off when the binding band 3 is conveyed in a subsequent process.

  Furthermore, as shown in FIG. 11, the binding band 3 is continuously conveyed, and during this conveyance, laser marking of characters, numbers, logos, barcodes, two-dimensional codes, and the like is performed on the base paint by the laser marker 18.

  Here, among the base paint on the binding band 3, the portion irradiated with the laser is carbonized and becomes black, and thus the binding band 3 is marked with the background paint as a background.

  Furthermore, conveyance of the binding band 3 is continued, and the leading end portion of the binding band 3 is led into the chute 11 from the lower side of the main body portion 14 as shown in FIG.

  Next, a pair of front and back portions of the guide roller 17 are opened by the air cylinder 16.

  Thereafter, as shown in FIG. 13, the binding band 3 is again conveyed at a high speed until the tip of the binding band 3 reaches the binding head 10. As a result, the binding band 3 goes around the coil 2 along the chute 11.

  Next, as shown in FIG. 14, the binding head 10 is rotated in the direction of the arrow A, and the leading end of the binding band 3 is clamped by the binding head 10, and is directly adhered to the coil 2.

  Next, as shown in FIG. 15, the binding band 3 is rewound in the direction of the arrow D by a winding device (not shown) of the dispenser, so that the binding band 3 passes through the slit of the chute 11. It is dragged out from the inside of the conveyance path 74 so as to be along the outer periphery of the coil 2.

  Here, the portion of the binding band 3 located in the main body 14 is led out to the coil 2 side through the distance between the pair of front and back portions of the guide roller 17.

  When the binding band 3 is in a state along the outer periphery of the coil 2, the binding band 3 is further rewound strongly at a low speed by the winding device of the dispenser, and the coil 2 is sufficiently tightened by the binding band 3.

  Next, the front end and tail end of the binding band 3 (the position returned once along the coil 2 when viewed from the front end) are sealed, and the excess portion is cut.

  After that, as shown in FIG. 16, the binding head 10 is rotated in the direction of arrow B and returned to the standby position.

  By the operation described above, the binding band 3 is bound along the outer periphery of the coil 2 as shown in the perspective view of FIG.

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

  Since the position of the marking 62 is near the tip of the binding band 3, it does not vary greatly on the circumference of the coil 2.

  According to the first embodiment as described above, the dedicated undercoating (such as white) is irradiated with a laser to carbonize the undercoating and perform black marking. Marking is possible.

  In addition, since the thin film of the base paint is carbonized by laser irradiation to create a print contrast, a clear print contrast can be ensured even if the laser focus is shifted by ± 10 mm.

  In addition, the presence of the base color also has an advantage that it is easy to find where the marking is made in a later process.

  Furthermore, even if the laser-irradiated part is rusted by exposure, the base paint remains around it, so that the printing can be easily visually confirmed.

  In addition, since the binding device 1 for the binding band is provided in the band binding device 4, the binding and marking of the band can be performed at one place. Therefore, space saving is realized.

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

  Further, since the binding band marking device 1 is provided together with the band binding device 4, the binding band marking device 1 can be incorporated as an option for the existing band binding device 4.

  Further, 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, the process can be shortened.

[Second Embodiment]
In the first embodiment, the example in which marking is performed on the binding band 3 while transporting the binding band 3 has been described. However, in the second embodiment, the transport of the binding band 3 is temporarily stopped. An example of marking will be described.

  In the case of the present embodiment, the configuration of the band binding system 100 is the same as that of the first embodiment. The operation of the band bundling system 100 is different from the first embodiment only in the points described below, and the other points are the same as those in the first embodiment.

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

  According to the second embodiment as described above, as compared with the first embodiment, the conveyance for temporarily disposing the binding band 3 along the outer periphery of the coil 2 is stopped. However, the same effects as in the first embodiment can be obtained in other respects.

[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. However, in the third embodiment, after the binding band 3 is bound to the coil 2. An example of marking will be described.

  FIG. 18 is a diagram showing a configuration of a band binding system 200 according to the second embodiment. In FIG. 18, the same components as those described in the first embodiment are denoted by the same reference numerals as those in the first embodiment.

  As shown in FIG. 18, the band binding system 200 includes a band binding device 4 and a binding band marking device 201.

  The band binding device 4 is the same as that of the first embodiment.

  The binding band marking device 201 includes a marking head 202 that performs marking (printing) on the binding band 3, a direction in which the marking head 202 approaches the coil 2 (arrow F direction), and a direction in which the marking head 202 moves away from the coil 2 (arrow G direction). A moving mechanism 203 that moves (lifts and lowers), a paint unit 6 that supplies paint to the marking head 202, an operation unit 8 that receives operations by an operator, a display unit 40 that performs various displays related to operations, and a display unit 40, and a control unit 7 that controls the operation of the paint unit 6 and the marking unit 5.

  FIG. 19 is an enlarged view of the marking head 202.

  As shown in FIG. 19, the marking head 202 includes a housing 204, a laser marker 18, a ground spray nozzle 19, and a coil detector 205.

  The laser marker 18 and the ground spray nozzle 19 are the same as those in the first embodiment, and are disposed in the housing 204.

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

  In the present embodiment, since the binder band 3 is not transported after the base paint is sprayed on the binder band 3, the dryer 20 does not need to be provided.

  The paint unit 6, the operation unit 8, the display unit 40, and the control unit 7 are the same as those in the first embodiment. However, the control unit 7 also performs operation control of the moving mechanism 203.

  The moving mechanism 203 is composed of an actuator such as an air cylinder, for example.

  In the first embodiment, the example in which the marking unit 5 is installed (attached) independently of the chute 11 has been described. However, in the third embodiment, the marking head 202 and the moving mechanism 203 are installed on the chute 11. .

  That is, the marking head 202 is held by the chute 11 so that it can move in the directions of arrows F and G, and the moving mechanism 203 is also fixed to the chute 11.

  FIG. 20 is a view 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 flow line of the marking head 202 moved by the moving mechanism 203.

  This angle α is appropriately adjusted according to the position where the binding band 3 is marked. Further, by appropriately adjusting the angle α, it is possible to perform marking at substantially the same position on the coil 2 having an arbitrary diameter.

  Next, the operation will be described.

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

  The binding procedure will be briefly described. First, the binding band 3 is transported from an external dispenser to the band binding device 4.

  The binding band 3 enters 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 makes a round around the chute 11 and reaches the binding head 10.

  Next, as explained in the first embodiment, the tip of the binding band 3 is gripped by the binding head 10 and brought into close contact with the coil 2, and then the binding band 3 is rewound by the take-up device of the dispenser. As a result, the binding band 3 is dragged out from the inside of the conveyance path 74 of the chute 11 and along the outer periphery of the coil 2.

  Further, the rewinding device strongly rewinds at a low speed, and the coil 2 is sufficiently tightened by the binding band 3.

  Next, the front end and tail end of the binding band 3 (the position returned once along the coil 2 when viewed from the front end) are sealed, and the excess portion is cut.

  Thereafter, the binding head 10 is returned to the standby position.

  When the binding of the binding band 3 is completed in this way, as shown in FIG. 21, the chute 11 is offset by a predetermined distance (for example, about 200 mm) in the direction of arrow H, so that the marking head 202 is positioned at the center position of the binding band 3. To place.

  Next, as shown in FIG. 22, the marking head 202 is moved (lowered) toward the coil 2 by the moving mechanism 203. 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 housing 204 is preliminarily set so that the distance between the marking head 202 and the coil 2 when the surface of the coil 2 is detected by the coil detector 205 is the optimum distance for marking. The arrangement is adjusted.

  Next, as shown in FIG. 23, the base coating material is sprayed from the base spray nozzle 19 to the binding band 3. Here, the base coating is sprayed from the base spray nozzle 19 to the binding band 3 through the stencil so that the base coating is not sprayed not only on the binding band 3 but also on the surface of the coil 2.

  Next, as shown in FIG. 24, laser marking is performed on the base paint by the laser marker 18.

  Thus, the binding band 3 is marked with the background paint as a background.

  According to the third embodiment as described above, the marking is performed after the binding band 3 is bound to the coil 2. However, in the other points, the marking is different from the first and second embodiments. The same effects as those of the first and second embodiments can be obtained.

  In each of the above embodiments, the example in which the base coating is carbonized by laser irradiation and marking is performed with the base coating located around the irradiated portion as the background has been described. However, the base coating is peeled off by laser irradiation. Then, by exposing the background of the binding band 3, a marking recognizable by the contrast between the background of the steel material and the paint may be formed. In this case, the laser marker 18 may peel off the paint sprayed on the binding band 3 into a character shape and leave the paint that is the background of the character on the contrary. Of these, the character portion may remain and only the background portion may be peeled off.

  Moreover, in each said embodiment, although the coil 2 of the steel plate was illustrated as a thing to be bound, the other thing which requires the binding by the binding band 3 may be used.

It is a figure showing the whole band unity system composition concerning a 1st embodiment. It is the perspective view which expanded a part of chute | shoot. It is an enlarged view of the marking unit with which the binding apparatus for binding bands which concerns on 1st Embodiment is provided. It is the perspective view which looked down at the main-body part of the marking unit from the inner peripheral side of the chute. It is the front view which looked at the main-body part of a marking unit from the inner peripheral side of a chute | shoot, and shows the state which the guide roller opened. It is a block diagram which shows the structure of a coating material unit. It is a block diagram which shows the structure of a control part. It is a series of diagrams for explaining the flow of operation, and particularly shows a state in which a binding band is introduced into the chute. It is a series of diagrams for explaining the flow of operation, and particularly shows a state in which a base paint is sprayed on a binding band. It is a series of figures for explaining a flow of operation, and shows a state in which warm air of a dryer is sprayed on a base paint on a binding band. It is a series of diagrams for explaining the flow of operation, and particularly shows a state where marking is performed on a binding band. It is a series of figures for explaining a flow of operation, and shows a state after finishing marking in particular. It is a series of figures for explaining a flow of operation, and shows a state where a binding band is arranged so as to go around the chute. It is a series of figures for explaining a flow of operation, and shows a state which started tightening of a binding band to a coil especially. It is a series of figures for explaining a flow of operation, and shows a state where fastening of a binding band to a coil was finished especially. It is a series of diagrams for explaining the flow of operation, and particularly shows a state at the end of band binding. (A) is a perspective view which shows the coil of the state in which the band was bound, (b) is an enlarged view of the E section in (a). It is a figure which shows the whole structure of the band binding system which concerns on 2nd Embodiment. It is an enlarged view of the marking head with which the binding apparatus for binding bands which concerns on 2nd Embodiment is provided. It is a figure for demonstrating arrangement | positioning of a marking head. It is a top view for demonstrating the operation | movement immediately after band binding. It is a figure which shows the state which moved the marking head to the vicinity of the coil for marking. It is a figure which shows the state which sprays a coating material before marking. It is a figure which shows the state which performs marking. It is a perspective view which shows the example of the conventional marking with respect to the coil of a steel plate.

Explanation of symbols

1 Binding band marking device 2 Coil (Bundled object)
3 Bundling band 4 Band bundling device 4
5 Marking unit 18 Laser marker 19 Substrate blowing nozzle (base formation device)
11 Chute (constitutes the transport path)
74 Conveyance path 100 Band bundling system 200 Band bundling system 201 Bundling band marking device 202 Marking head 203 Moving mechanism

Claims (9)

In a binding band marking device that performs marking on a binding band for binding an object to be bound,
A base forming device for forming a base coating on the binding band;
A laser marker for performing laser marking on the base coating formed by the base forming device;
A binding device for a binding band, comprising: The binding band marking device is used in addition to a band binding device that binds a binding band to an object to be bound,
The band binding device has a transport path for transporting the binding band in the process of arranging the binding band before binding along the periphery of the object to be bound,
2. The binding band according to claim 1, wherein undercoating is formed by the base forming apparatus and laser marking is performed by the laser marker in a state where the binding band is transported in the transport path. Marking device. The binding band marking device is used in addition to a band binding device that binds a binding band to an object to be bound,
The band binding device has a transport path for transporting the binding band in the process of arranging the binding band before binding along the periphery of the object to be bound,
2. The binding band marking device according to claim 1, wherein laser marking by the laser marker is performed in a state in which transport of the binding band is temporarily stopped in a process of transporting the binding band in the transport path. . The binding band marking device is used in combination with a band binding device that binds a binding band to an object to be bound.
The band binding device has a frame-shaped transport path for transporting the binding band in the process of arranging the binding band before binding along the periphery of the object to be bound,
The binding band marking device is:
A marking head provided in the transport path, on which the foundation forming device and the laser marker are mounted;
A moving mechanism for moving the marking head in a direction approaching and moving away from the object to be bound located inside the transport path;
The binding band marking device according to claim 1, further comprising: A binding device for a binding band according to any one of claims 1 to 4,
A band binding device for binding the binding band to the object to be bound;
A band bundling system characterized by comprising: In a binding band marking method for marking a binding band for binding an object to be bound,
A first step of forming a base coating on the binding band;
A second step of performing laser marking on the base coating formed by the first step;
A marking method for a binding band, comprising:   In the state where the binding band is transported in the transport path for transporting the binding band in order to arrange the binding band before binding along the periphery of the object to be bound, the first and second The binding band marking method according to claim 6, wherein the process is performed.   In order to arrange the binding band before binding along the periphery of the object to be bound, the transport of the binding band is temporarily performed in the process of transporting the binding band in the transport path for transporting the binding band. The binding band marking method according to claim 6, wherein the second process is performed in a state where the binding band is stopped.   The binding band marking method according to claim 6, wherein the first and second processes are performed after the objects to be bound are bound by the binding band.

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