JP3641248B2 - Manufacturing method of wire instruction mark - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an electric wire instruction mark, a marking device thereof, and an electric wire on which the electric wire instruction mark is attached.
[0002]
[Prior art]
For electric wires used in electric parts such as railway vehicles, tube-like electric wires with markings such as wire numbers, symbols, marks, etc., for identifying electric wires are printed in order to prevent miswiring during electric work. An instruction mark is attached.
[0003]
Conventionally, a wire instruction mark made of PVC (polyvinyl chloride) has been used. As a method of printing a mark on the wire instruction mark, the foil is thermally transferred onto the surface of the tube-shaped main body of the wire instruction mark. Is printed.
[0004]
[Problems to be solved by the invention]
Since the electric wire instruction mark made of PVC generates a harmful substance when burned at the time of disposal, the load on the environment is large. For this reason, an electric wire instruction mark with a low environmental load is desired.
[0005]
Thus, for example, it is conceivable to use a resin that generates less harmful substances during combustion, such as polyolefin or nylon 66, as the material for the wire instruction mark. However, it is difficult to perform the printing by the thermal transfer with the electric wire instruction marks made of these resins as in the case of the PVC.
[0006]
The present invention has been made in order to solve the above-described problems, and provides an electric wire instruction mark in which an environmental load is reduced, a marking device thereof, and an electric wire equipped with the electric wire instruction mark. The purpose is to do.
[0007]
[Means for Solving the Problems]
The method for producing the electric wire instruction mark according to the present invention is such that a material tube is wound around a pair of rollers, and the roller is operated to feed the material tube toward a laser irradiation device, and a plurality of printing areas of the material tube In addition, after printing a predetermined mark by laser beam irradiation of the laser irradiation device, it is possible to insert the cut material tube into an electric wire as an electric wire instruction mark by cutting the material tube for each printing region (Claim 1).
Here, after the cut material tube is inserted into the electric wire, the cut material tube may be thermally shrunk (Claim 2). Further, according to the method of manufacturing the electric wire instruction mark, the mark may be printed in the print area with different markings (Claim 3).
[0008]
According to such a manufacturing method , it is possible to easily perform printing with a laser beam when manufacturing the wire instruction mark with a resin that generates little harmful substances during combustion but is difficult to print by thermal transfer. Therefore, the manufacturing method of the electric wire instruction mark with little burden on the environment can be realized. Further, since printing is performed by laser light, it is not necessary to use environmental pollutants such as ink and solvent for printing. For this reason, the load given to the environment can be further reduced.
[0009]
Further, with this electric wire instruction mark, the printed mark is not peeled off or disappeared by friction or a solvent, and good printing characteristics can be realized. In addition, since no ink or solvent is used, no consumables are required, and it is possible to reduce the running cost of the marking device. In addition, there is no need for cleaning, supply of consumables, etc. It becomes.
[0010]
The material of the material tube may be a polyolefin resins (claim 4). In addition, you may arrange | position a rib to the internal peripheral surface of the said material tube (Claim 5).
[0011]
According to such a configuration, it is possible to reduce the generation of harmful substances when the wire instruction mark is burned, and it is possible to realize an environment-friendly wire instruction mark.
[0012]
Marking apparatus of the wire indication mark to be attached to electric wires, Ru der to perform printing of the label by applying a laser beam to the wire direction mark.
[0013]
According to such a configuration, even if the main body portion of the wire instruction mark is made of a resin that generates little harmful substances during combustion but is difficult to print by thermal transfer, the mark can be printed by the laser beam. Therefore, it is possible to realize an electric wire instruction mark with a low environmental load. Further, since printing is performed by laser light, it is not necessary to use environmental pollutants such as ink and solvent for printing. For this reason, it is possible to further reduce the load applied to the environment.
[0014]
In addition, since printing is performed by printing with a laser beam here, the printed mark is not peeled off or disappeared by friction or a solvent. Therefore, an effective wire instruction mark can be obtained for wiring. In addition, since no ink or solvent is used, no consumables are required, and it is possible to reduce the running cost of the marking device. In addition, there is no need for cleaning, supply of consumables, etc. It becomes.
[0015]
The marking device includes a laser beam irradiation head, a laser beam irradiation device including a head moving mechanism of the laser beam irradiation head, and a control device for controlling the head moving mechanism, and a material tube feed mechanism for the wire instruction mark. The material tube is fed out by the feed mechanism, the laser beam is irradiated to a predetermined position of the material tube, and the laser beam irradiation head is moved by the control device via the head moving mechanism. but it may also be drawn to the labeling by.
[0016]
In such a configuration, the laser beam irradiation head can be freely operated through the head moving mechanism by the control device, so that a desired mark can be printed easily and accurately. Further, since the feeding mechanism can continuously print at a desired position at a predetermined interval, it is possible to efficiently manufacture the electric wire instruction mark.
[0017]
In particular, it is possible here to print a plurality of different labels on a single material tube by inputting a plurality of marker patterns into the control device. For this reason, it becomes possible to manufacture the several electric wire instruction | indication mark which has a respectively different label | marker simultaneously. In general, the production of electric wire instruction marks is a so-called multi-product low-volume production in which various types of electric wire instruction marks with different contents of the signs are produced in small quantities, so that various kinds of electric wire instruction marks can be produced simultaneously. The effect of the embodiment is effective.
[0018]
Electric lines, Ru der those wearing the wire indication mark according to claim 1, wherein.
[0019]
In such a configuration, since the electric wire instruction mark printed by the laser beam is attached, the mark printed on the electric wire instruction mark does not peel off or disappear due to friction or a solvent. Therefore, the wire instruction mark of the present invention is effective for an electric wire that is inconvenient if the print indicating the arrangement location disappears.
[0020]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
[0021]
FIG. 1 is a schematic diagram showing a configuration of a marking device for an electric wire instruction mark according to an embodiment of the present invention.
[0022]
As shown in FIG. 1, in the marking device, a feeding device 1 and a winding device 2 each having a bobbin are horizontally arranged at a predetermined interval. Then, the tube 3 ′, which is the main body portion of the wire instruction mark 3 (FIGS. 3 and 4), is sent out from the delivery device 1 and taken up by the take-up device 2. Located on the bobbin. A delivery roller 10A and a pressure roller 10B are disposed between the delivery device 1 and the winding device 2 so as to sandwich the tube 3 'so that the delivery speed of the tube 3' is constant. In addition, although not shown, a feeding assist device for preventing sagging of the tube 3 ′ is disposed between the feeding device 1 and the winding device 2.
[0023]
A laser beam irradiation device 20 is provided above the delivery device 1 and the winding device 2. The laser light irradiation device 20 includes a laser light irradiation head 4 and a head moving mechanism 5 that enables the laser light irradiation head 4 to move in a three-dimensional direction. Further, a control device 6 for controlling the head moving mechanism 5 to move the laser light irradiation head 4 to a desired position is provided. The control device 6 also controls the delivery device 1 and the take-up device 2, and adjusts the delivery amount of the tube 3 ′.
[0024]
The laser light irradiation head 4 includes a laser light oscillation device (not shown). A YAG laser device is used as the laser light oscillation device.
[0025]
As the tube 3 ′, a tube made of a resin that generates little harmful substances during combustion, specifically, a polyolefin tube, an Irax tube, a nylon 66 tube, a highly flame-retardant resin tube 2619 (manufactured by Nippon Unica), or Non-halogen flame retardant polyethylene tubes are used. Here, a heat-shrinkable polyolefin tube is used. The Irax tube is a tube made of a resin whose heat resistance is improved by electron beam irradiation, such as an electron-crosslinked soft flame-retardant polyolefin resin. In addition, it is difficult to perform printing by thermal transfer on these resins.
[0026]
FIG. 2 is a schematic cross-sectional view of the tube 3 ′ of FIG. As shown in FIG. 2, the tube 3 ′ has a cylindrical shape, and is provided with a thin rib 3 </ b> A that protrudes in the center direction from the inner peripheral surface. Here, a total of six ribs 3A are provided at intervals of about 60 ° of the central angle. Such a tube 3 ′ is formed by extruding a resin material.
[0027]
Next, the operation of the marking device will be described.
[0028]
As shown in FIG. 1, first, a tube 3 ′ is attached to the rollers of the feeding device 1 and the winding device 2. Then, the control device 6 is inputted with the interval of the print area in the tube 3 ′, characters and numbers to be printed and their arrangement, the size of the print, and the like, and the feed amount of the tube 3 ′ is set.
[0029]
When the marking device is operated, the feeding device 1 and the winding device 2 are operated to feed the tube 3 ′. When a predetermined amount of feeding is performed according to the setting of the control device 6 and a predetermined printing area of the tube 3 'comes to the lower part of the laser beam irradiation device 20, the feeding device 1 and the winding device 2 are temporarily stopped and the laser beam is stopped. The irradiation device 20 is activated.
[0030]
In the laser light irradiation device 20, the laser light irradiation head 4 irradiates the print region of the tube 3 ′ with the laser light, and the laser light irradiation head 4 moves in a three-dimensional direction through the head moving mechanism 5 according to a command from the control device 6. Move freely. As a result, the portion (spot) irradiated with the laser light of the tube 3 ′ is burnt and carbonized, and the burned portion draws numbers, symbols, and the like according to the locus of the spot accompanying the movement of the laser light irradiation head 4. As a result, a desired line number, symbol, mark, or other mark is printed in a predetermined area of the tube 3 ′. As described above, in the present embodiment, printing is performed by irradiation with laser light. The printing printing state, that is, the printing depth on the surface of the tube 3 ′ is adjusted by adjusting the voltage of the laser beam irradiation device 20, for example.
[0031]
When the printing on the predetermined portion of the tube 3 ′ is completed, the irradiation of the laser beam is once stopped, and the feeding device 1 and the winding device 2 are operated again to feed the tube 3 ′. When the next print area comes below the laser beam irradiation device 20, printing is performed again in the same manner as described above. In this way, printing is continuously performed on each printing region of the tube 3 ′.
[0032]
The tube 3 ′ that has finished printing is cut into a predetermined length for each printing area. Thereby, as shown in FIG. 3, a plurality of wire instruction marks 3 are formed by printing characters and numerals 15 on a predetermined portion of the surface. Here, the wire instruction mark 3 has, for example, a diameter D of 20 mm and a length L in the major axis direction of 30 mm. The print size is 6 mm, for example.
[0033]
After the wire instruction mark 3 is formed, it is attached to the corresponding wire 7. When attaching to the electric wire 7, first, the electric wire instruction mark 3 is inserted into the electric wire 7, as shown in FIG. Here, since the wire instruction mark 3 is provided with ribs 3A (FIG. 2) on the inner peripheral surface, when the outer diameter of the wire 7 is small, the tip portion of each rib 3A contacts the wire 7. Thus, play between the electric wire 7 and the electric wire instruction mark 3 can be reduced. When the outer diameter of the electric wire 7 is larger than that of the electric wire instruction mark 3, the rib 2 is thin and easily deformed, so that it can be easily inserted into the electric wire 7 without feeling firmness.
[0034]
After inserting the electric wire instruction mark 3 into the electric wire 7 as described above, the electric wire instruction mark 3 is heated using a dryer or the like. Thereby, the electric wire instruction mark 3 is thermally contracted, and the electric wire instruction mark 3 is brought into close contact with the outer peripheral surface of the electric wire 7 and is fitted and fixed.
[0035]
In the marking device, the laser beam irradiation head 4 can be freely moved in a three-dimensional direction through the head moving mechanism 5 under the control of the control device 6. For this reason, even in the tube 3 ′ made of polyolefin which is difficult to be printed by thermal transfer, it is possible to easily and accurately print a desired marker with a laser beam. The polyolefin wire instruction mark 3 printed in this way generates less harmful substances even when burned during disposal or the like. Therefore, it is possible to reduce the load on the environment.
[0036]
Further, since the tube 3 ′ can be fed by the feeding device 1 and the winding device 2, it is possible to perform printing at a desired position continuously at a predetermined interval from the tube 3 ′. As described above, since it is possible to continuously print a plurality of wire instruction marks 3 in the same process, it is possible to efficiently mark the wire instruction marks 3.
[0037]
In particular, here, it is possible to print a plurality of different signs on one material tube 3 ′ by inputting various kinds of sign information to the control device 6. For this reason, it is possible to simultaneously manufacture a plurality of wire instruction marks each having a different mark printed thereon. In general, the production of electric wire instruction marks is a so-called multi-product low-volume production in which various types of electric wire instruction marks with different contents of the signs are produced in small quantities, so that various kinds of electric wire instruction marks can be produced simultaneously. The effect of the embodiment is effective.
[0038]
Further, since printing is performed by laser, it is not necessary to use environmental pollutants such as ink and solvent. For this reason, it is possible to further reduce the load applied to the environment.
[0039]
Further, the characters and numbers 15 printed by laser printing are not peeled off or thinned by friction or a solvent. In the electric wire instruction mark indicating the wiring location of the electric wire, if the printing is erased or thinned, the wiring location is not known, which causes inconvenience. Therefore, the wire instruction mark 3 according to the present embodiment in which the printing is not permanently erased is effective in wiring the wire.
[0040]
In addition, since no consumables such as ink or solvent are used for printing, it is possible to reduce the running cost of the marking device, and it is not necessary to clean the marking device or supply consumables, thus maintaining the device. It becomes easy.
[0041]
In the above-described embodiment, the wire instruction mark 3 provided with the rib 3A on the inner peripheral surface has been described. However, the present invention can also be applied to an electric wire instruction mark provided with no rib. When using an Irax tube, nylon 66 tube, highly flame retardant resin tube 2619 or non-halogen flame retardant polyethylene tube that is not heat-shrinkable in the main body of the wire instruction mark, simply insert the wire instruction mark into the wire. Since it is necessary to fix, it is preferable that the rib 3A is provided because it can be more closely fixed to the electric wire.
[0042]
Further, the dimensions and printed contents of the electric wire instruction mark are not limited to the above-described embodiments, and are appropriately determined according to the dimensions and the arrangement location of the electric wire on which the electric wire instruction mark is to be attached. For example, in the above embodiment, characters and numbers 15 are arranged in one line on the surface of the electric wire instruction mark 3, but may be arranged in a plurality of lines.
[0043]
【The invention's effect】
The present invention is implemented in the form as described above, and has the following effects.
[0044]
In the present invention, since the laser beam irradiation head that can move freely in the three-dimensional direction is printed while being controlled by the control device, it is possible to easily and accurately print a desired marker on the tube. In addition, since the tube can be fed out by the feeding device and the winding device, it is possible to continuously print a plurality of electric wire instruction marks in the same process, and thus efficiently mark the electric wire instruction marks. It becomes possible. In particular, in this case, it is possible to print a plurality of different signs on one material tube by inputting various information of the signs into the control device, and thus a plurality of electric wire instructions with different printed signs. Marks can be manufactured simultaneously. In the production of the electric wire instruction mark, since a variety and small quantity production is desired, the present invention which can realize this is effective.
[0045]
Further, since printing is performed by laser light, it is not necessary to use environmental pollutants such as ink and solvent for printing. For this reason, it is possible to further reduce the load applied to the environment. Further, printed characters, numbers, and the like are not peeled off or thinned by friction or a solvent. In addition, since no ink or solvent is used, no consumables are required, and it is possible to reduce the running cost of the marking device. In addition, there is no need for cleaning, supply of consumables, etc. It becomes.
[Brief description of the drawings]
FIG. 1 is a schematic diagram showing a configuration of a marking device for an electric wire instruction mark according to an embodiment of the present invention.
2 is a perspective view showing the appearance of the tube of FIG. 1. FIG.
FIG. 3 is a perspective view showing an appearance of a wire instruction mark.
4 is a schematic diagram showing a method for attaching the electric wire instruction mark of FIG. 3;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Feeding apparatus 2 Winding apparatus 3 Electric wire instruction | indication mark 3 'tube 3A Rib 4 Laser beam irradiation head 5 Head moving mechanism 6 Control apparatus 7 Electric wire 10A Feeding roller 10B Pressing roller 20 Laser beam irradiation apparatus

Claims (5)

  By winding the material tube around a pair of rollers and operating the roller, the material tube is sent out toward the laser irradiation device, and a plurality of print areas of the material tube are irradiated with laser light from the laser irradiation device. A method of producing an electric wire instruction mark that enables the cut material tube to be inserted into an electric wire as an electric wire instruction mark by cutting the material tube for each printing region after printing a predetermined mark. The manufacturing method of the electric wire instruction | indication mark of Claim 1 which heat-shrinks the said cut | disconnected material tube after inserting the said cut | disconnected material tube in the said electric wire. The method for producing an electric wire instruction mark according to claim 1, wherein the mark is printed in a different manner in the print area. The material of the material tube according to claim 1 or 2 wire mark of each procedure described is a polyolefin resins. The manufacturing method of the electric wire instruction | indication mark of Claim 4 by which the rib is arrange | positioned at the internal peripheral surface of the said material tube.

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