WO2007142249A1 - Electric wire coloring apparatus - Google Patents

Electric wire coloring apparatus Download PDF

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Publication number
WO2007142249A1
WO2007142249A1 PCT/JP2007/061399 JP2007061399W WO2007142249A1 WO 2007142249 A1 WO2007142249 A1 WO 2007142249A1 JP 2007061399 W JP2007061399 W JP 2007061399W WO 2007142249 A1 WO2007142249 A1 WO 2007142249A1
Authority
WO
WIPO (PCT)
Prior art keywords
coloring
electric wire
coloring material
nozzle
reciprocating
Prior art date
Application number
PCT/JP2007/061399
Other languages
French (fr)
Inventor
Takeshi Kamata
Keigo Sugimura
Kiyoshi Yagi
Original Assignee
Yazaki Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yazaki Corporation filed Critical Yazaki Corporation
Priority to CN2007800198294A priority Critical patent/CN101454845B/en
Priority to MX2008015035A priority patent/MX2008015035A/en
Priority to EP07744745A priority patent/EP2022064A1/en
Publication of WO2007142249A1 publication Critical patent/WO2007142249A1/en

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/34—Apparatus or processes specially adapted for manufacturing conductors or cables for marking conductors or cables
    • H01B13/345—Apparatus or processes specially adapted for manufacturing conductors or cables for marking conductors or cables by spraying, ejecting or dispensing marking fluid

Definitions

  • This invention relates to an electric wire coloring apparatus for coloring the electric wire having a conductive core wire and an insulating sheath for covering the core wire. [Back ground]
  • a wiring harness is arranged in the vehicle for supplying electric power from a battery to the electronic components and supplying control signals from a computer to the electronic components.
  • the wiring harness includes a plurality of electric wires and a connector attached to ends of the electric wires.
  • the electric wire includes a conductive core wire and a sheath made of insulating synthetic resin for covering the core wire.
  • the electric wire is a so-called coated wire.
  • the connector includes conductive terminals and an insulating connector housing. The terminals are connected to the ends of the electric wires and electrically connected to the core wires of the electric wires.
  • the connector housing has a box shape, and receives the terminals.
  • the electric wires are cut in a specific length, and then the terminals are attached to the ends of the electric wires. Then, if necessary, the electric wires are connected to each other. Then, the terminals are inserted into the connector housing. Thus, the wiring harness is assembled.
  • a size of the core wire, material of the sheath (for example, heat resistance property) and a purpose of use of each electric wire in the wiring harness should be distinguished.
  • the purpose of use is, for example, transmitting control signals of an air bag, ABS (Antilock Brake System), or a vehicle speed, or supplying electric power.
  • the electric wires of the wiring harness have had a stripe pattern of two different colors on outer surfaces thereof.
  • a coloring material having a desired first color is previously mixed with the synthetic resin of the sheath.
  • another coloring material having a second color different from the first color is attached to a part of the outer surface of the sheath, namely, the synthetic resin covering the core wire.
  • the electric wire has the stripe pattern.
  • an applicant of the present invention proposes an electric wire coloring apparatus for attaching coloring material onto an outer surface of the electric wire in a spiral shape of which center is a core wire of the electric wire by jetting a specific amount of coloring material onto an outer surface of the electric wire (see Patent Document l).
  • Patent Document l Japanese published patent application No. 2004-79200
  • an object of the present invention is to provide an electric wire coloring apparatus having a simple device configuration to improve visibility and design quality of an electric wire.
  • an electric wire coloring apparatus for forming color bands 6 on an outer surface 3a of an electric wire 3 by attaching coloring material on the outer surface 3a of the electric wire 3, said apparatus comprising : a coloring device 13 for jetting the coloring material toward the outer surface 3a of the electric wire 31 a reciprocating device 18 for reciprocating a tip of the coloring device 13, from which the coloring material is jetted, and moving the tip circularly in a direction crossing a longitudinal direction "A" of the electric wire 3 in a manner that each coloring material is attached to whole circumference of a coloring area 3b corresponding to each color band 6; a transportation device 14 for transporting either the coloring device 13 and the reciprocating device 18 or the electric wire 3 in the longitudinal direction "A" of the electric wire 3; and a controlling device 21a for controlling a jet of the coloring material from
  • the controlling device 21a controls the coloring device 13 to jet out the coloring material, and the reciprocating device 18 reciprocates the jetting tip of the coloring device 13 in a circular path. Then, the coloring material is attached to whole circumference of the coloring area 3b, and the color band 6 is formed on the outer surface 3a of the electric wire 3.
  • the electric wire coloring apparatus as claimed in claim 1, wherein the reciprocating device 18 includes an air cylinder for moving the tip of the coloring device 13 on a circle of which center is located on a line perpendicular to the electric wire 3.
  • the air cylinder of the reciprocating device 18 moves the tip of the coloring device 13 on the circle of which center is located on a line perpendicular to the electric wire 3.
  • the electric wire coloring apparatus as claimed in claim 1 or 2, wherein the coloring device 13 includes antr scattering member 71 for preventing the coloring material jetted to the electric wire from scattering.
  • the antr scattering member 71 prevents the coloring material from scattering.
  • the electric wire coloring apparatus as claimed in any one of claims 1 to 3, wherein the controlling device 21a controls the coloring device 13 to jet the coloring material only when the reciprocating device 18 reciprocates the tip of the coloring device 13.
  • the controlling device 21a allows the coloring device 13 to jet the coloring material only when the reciprocating device 18 reciprocates the tip of the coloring device 13 in a circular path.
  • the reciprocating device 18 reciprocates the tip of the coloring device 13, from which the coloring unit is jetted, in a circular path crossing the longitudinal direction of the electric wire, and the transportation device 14 transports the coloring device 13 so that the coloring material is attached to whole circumference of the coloring area. Therefore, without moving the coloring device 13 in a direction crossing the electric wire, the color band is surely formed in whole circumference of the outer surface of the electric wire. Therefore, the color bands corresponding to the types of the electric wires are easily recognized from any direction. Further, a plurality of coloring devices 13 are transported in only one direction, namely, the longitudinal direction of the electric wire. Therefore, the transportation device 14 can have a simple structure, and cost of the electric wire coloring apparatus can be reduced.
  • the structure and the control of the coloring apparatus can be simplified. Further, the visibility and the design quality of the electric wire is further improved than and the electric wire of which outer surface is partially colored. Further, because the color band allowing easy recognition of the electric wire is easily formed, stocks of the electric wires corresponding to colors of the electric wires can be reduced. Further, shelves for the electric wires can also be reduced corresponding to the reduction of the stock of the electric wires. Therefore, a space for processing the electric wires also can be reduced.
  • the present invention as claimed in claim 2 in addition to an effect of claim 1, because the tip of the coloring device 13 is moved on the circle of which center is located on a line perpendicular to the electric wire 3, the coloring material is jetted over a wide range of the electric wire. Therefore, the color bar is surely formed in whole circumference of the outer surface of the electric wire, and the coloring apparatus easily adapts to a change of size of the electric wire.
  • the present invention as claimed in claim 3 in addition to an effect of claim 1 or 2, because the anti- scattering member 71 prevents the coloring material from scattering, a range of the reciprocating movement in a circular path of the coloring device 13 can be increased. Therefore, the color bar is surely formed in whole circumference of the outer surface of the electric wire, and the coloring apparatus easily adapts to a change of size of the electric wire.
  • FIG. 1 a schematic view showing a basic structure of an electric wire coloring apparatus according to the present invention.
  • FIG. 2 an explanatory view showing a process flow of a wiring harness producing system using the electric wire coloring apparatus according to the present invention.
  • FIG. 3 a schematic view showing a schematic structure of the electric wire coloring apparatus according to the present invention.
  • FIG. 4 a perspective view showing a relationship among a coloring device, a reciprocating device, and electric wires shown in Fig. 3.
  • FIG. 5 an explanatory view showing color bars formed on the electric wire.
  • FIG. 6 a sectional view showing a structure of a coloring nozzle of the coloring device.
  • FIG. 7 an explanatory view showing an operation of an oscillation part shown in Fig. 4.
  • FIG. 8 an explanatory view showing how to color the electric wire.
  • FIG. 9 a flowchart showing a part of a control operation of moving the coloring device executed by a CPU shown in Fig. 3.
  • a wiring harness producing system includes an electric wire cutting process Pl, a coloring process P2, a terminal press-fitting process P3, a joint process P4, and the like.
  • the electric wire coloring apparatus 1 is installed on the coloring process P2. If the coloring process P2 is not included in the system, the electric wire coloring apparatus 1 is installed on the electric wire cutting process Pl, or the terminal press-fitting process P3.
  • the wiring harness includes a plurality of sub wiring harnesses. The sub wiring harnesses are respectively mounted on corresponding systems in a vehicle. Each sub wiring harness includes a plurality of electric wires and connectors attached to ends of the electric wires.
  • An electric wire producing apparatus 100 cuts a long reel-shaped electric wire into the electric wires each having a specified length, and engages the ends of the electric wires with a clamping rod each in a U- shape. Then, a transporting apparatus 10 mounted through the processes transports the clamping rod to the coloring process P2.
  • the transporting apparatus 10 includes a belt and a chain circulating through the processes, a driving motor for circulating the bent and the chain, and a controller for controlling the driving motor. Namely, the controller controls the driving motor to transport the clamping rod to each process. Further, according to the best mode, the controller controls the driving motor intermittently corresponding to a cycle (tact time) of press-fitting of later-described pres-fitting apparatus, and consequently transports the electric wires intermittently.
  • the clamping rod includes a plurality of pegs 11 for catching the electric wires, and fixing parts for fixing the pegs in a predetermined interval.
  • the pair of pegs 11 catches the electric wire in a U"shape using a circular head for turning the electric wire in a TJ- shape.
  • the coloring process P2 includes the later-described electric wire coloring apparatus 1 according to the present invention.
  • sorting preparing an applicator, press-fitting, checking, and marking are done. Namely, the electric wires are sorted corresponding to types of terminals.
  • Preparing the applicator means that the applicator of a press-fitting apparatus 200 is changed corresponding to types of the terminals, or a height of press-fitting is adjusted.
  • the applicator includes an elevating upper mold (crimper) and a fixed bottom mold (anvil) as press-fitting tools.
  • the press-fitting condition is checked by a visual check or a TV camera. Then, for distinction in a later-described terminal-insertion process, an identification mark is marked on the terminal with a felt pen.
  • the press-fitting apparatus 200 has a well-known structure and press-fits various types of terminals.
  • the press-fitting apparatus 200 press-fits the terminal onto the electric wire transported by the clamping rod using the press-fitting tools.
  • the joint process P4 sorting, stripping, preparing the applicator, press-fitting, checking, and winding a joint tape are done. Namely, firstly, the electric wires having terminals of the coloring process P2 are sorted corresponding to types of joint terminals, and joint positions. Next, the applicator is prepared corresponding to the joint terminal similar to the press-fitting process. Then, an end of another electric wire is jointed with the joint terminal at the stripping position of the electric wire. After checking the press-fitting condition, jointing part is wounded with an insulating vinyl tape. In the following process, for example, the electric wires press-fitted at the terminal press-fitting process P3, and the electric wires jointed at the joint process P4 are sorted by each product number.
  • the electric wire coloring apparatus 1 as shown in Figs. 3 and 4 are provided at the coloring process P2 for forming color bands on a part of the outer surface 3a of the electric wire 3 shown in Fig. 5. Namely, the electric wire coloring apparatus 1 attaches the liquid coloring material in whole circumference of the outer surface 3a of the electric wire 3 to form the color bands 6.
  • the electric wire 3 is a component of the wiring harness arranged in a vehicle. As shown in Fig. 5, the electric wire 3 includes a plurality of conductive core wire 4 and an insulating sheath 5.
  • the core wire 4 is formed by twisted leads.
  • the lead as a component of the core wire 4 is made of conductive metal.
  • the core wire 4 may be composed of a single lead.
  • the sheath 5 is made of synthetic resin, such as polyvinyl chloride (PVC).
  • PVC polyvinyl chloride
  • the sheath 5 covers the core wire 4. Therefore, the outer surface 3a of the electric wire 3 is an outer surface of the sheath 5.
  • the sheath 5 is monochromatic.
  • the outer surface 3a of the electric wire 3 may be monochromatic by mixing coloring material with the synthetic resin of the sheath 5.
  • Bundling the electric wires 3 and Attaching connectors onto the ends of the electric wires 3 form the wiring harness.
  • the connectors are connected to connectors of various electronic components in a vehicle.
  • the electric wires 3 of the wiring harness send signals or power to the electronic components.
  • Color bars 6 are formed on the coloring areas 3b on the outer surface 3a of the electric wire 3 with the coloring material. Firstly, the coloring material is attached to a front side of the coloring area 3b, and then runs to the backside of the coloring area 3b, so that the coloring material is attached in whole circumference of the coloring area 3b. In the best mode, widths of the coloring areas 3b corresponding to the color bars in the longitudinal direction of the electric wire 3 are varied. However, the widths thereof may be the same.
  • the widths of the coloring areas 3b, the number of the coloring areas 3b, and a combination of colors thereof indicate a size, a purpose of use, and the like of the electric wire 3. Accordingly, the color bars 6 indicate the size, the purpose of use of the electric wire 3.
  • the color bars 6 may indicate a type of the electric wire 3, the system in which the electric wire 3 is used, or the like.
  • the identity of the color bar 6 is secured by attaching the coloring material in a ring shape in whole circumference of the outer surface 3a of the electric wire 3. Similar to the conventional electric wire, the electric wire is formed by tying the core wires together in a white sheath. Then, the electric wire is marked so that marking the conventional band mark for identifying a size or a type of the electric wire is not necessary. Thus, the electric wire 3 having identity can be produced. As shown in Figs. 3 and 4, the electric wire coloring apparatus 1 includes a control unit 20, a coloring unit 30, and a driver 24 for driving the coloring unit 30.
  • the control unit 20 includes ⁇ a CPU 21 for processing and controlling according to a predetermined program! a ROM 22 for receiving the program of the CPU 21; and a RAM 23 for receiving various data and providing a working area for the CPU 21.
  • the ROM 22 stores various programs such as coloring and transforming control program for working the CPU 21 as a control device for coloring or transporting in claims, and various design pattern data for forming the color bars 6 corresponding to the color and the size of the electric wire 3.
  • the design pattern data includes the coloring area 3b, the color for coloring the coloring area 3b, and a relative position of the coloring area 3b.
  • the driver 24 is connected to both the control unit 20 and the coloring unit 30.
  • the driver 24 controls the jetting and the transporting in the longitudinal direction "A" of a coloring device 13 according to an instruction from the control unit 20.
  • the driver 24 outputs a position data (counter value) corresponding to the position of the transported coloring device 13 to the control unit 20.
  • the coloring unit 30 includes: a plurality of coloring devices 13 corresponding to the colors of the coloring material; a sliding member 14 as the transportation device which can transport a case 14a for receiving the coloring device 13 in the longitudinal direction "A" of the electric wire 3 which is a direction "Y' in Fig. 5; an oscillating member 18 as the reciprocating device! a anti- scattering member 71; and a washing member 91.
  • the plurality of coloring devices 13 are juxtaposed along the longitudinal direction "A" of the electric wire 3. Incidentally, the longitudinal direction "A" is perpendicular to a transporting direction "F' of the electric wire 3.
  • Each coloring device 13 includes: a coloring nozzle 31; a coloring material source 32; and a pressurized air source 33.
  • the coloring nozzle 31 jets the liquid coloring material from the coloring material source 32 onto the outer surface 3a of the electric wire 3.
  • the coloring nozzle 31 attaches a drop of the jetted coloring material onto the outer surface
  • the coloring nozzle 31 includes ⁇ a cylindrical nozzle main body 34; an insert member 35 received in the nozzle main body 34; an inlet 36; a first nozzle member 37; a valve mechanism 38; a second nozzle member 50; and a connection pipe 51.
  • the second nozzle member 50 is formed in a cylindrical shape.
  • the second nozzle member 50 is made of Polyetheretherketone (PEEK).
  • An outer diameter of the second nozzle member 50 is substantially equal to an outer diameter of the first nozzle member 37.
  • An inner diameter of the second nozzle member 50 is smaller than an inner diameter of the first nozzle member 37.
  • the second nozzle member 50 is arranged coaxially with the first nozzle member 37, and connected to the first nozzle member 37.
  • the second nozzle member 50 is disposed nearer the electric wire 3 than the first nozzle member 37.
  • a gap between the first nozzle member 37 and the second nozzle member 50 is watertight.
  • the coloring material flows along an arrow "S" in a longitudinal direction of the first nozzle member 37 through insides of the second nozzle member 50 and the first nozzle member 37.
  • the arrow "S" indicates a flowing direction of the coloring material.
  • An end face 50a of the second nozzle member 50 near the first nozzle member 37 is projected toward an inside of the first nozzle member 37 from an inner wall of the first nozzle member 37. Further, the end face 50a is formed flat in a direction perpendicular to the arrow "S".
  • the first nozzle member 37 and the second nozzle member 50 compose a nozzle member 47.
  • the nozzle member 47 communicates with an inside of the insert member 35, and the coloring material flows through the inside thereof.
  • connection pipe 51 is made of fluorine resin, and formed in a cylindrical shape. An inner diameter of the connection pipe 51 is substantially equal to outer diameters of the first nozzle member 37 and the second nozzle member 50.
  • the connection pipe 51 is fitted into outer walls of both the first nozzle member 37 and the second nozzle member 50, and connects the first nozzle member 37 and the second nozzle member 50. Further, the connection pipe 51 allows the second nozzle member 50 to be detachable from the first nozzle member 37.
  • Each coloring device 13 is connected to the control unit 20, and controlled by the control unit 20.
  • the coloring nozzle 31 leads the coloring material from the coloring material source 32 via the inlet 36 to a flow path 39. Then, when a coil 40 is not powered, owing to an energizing force of a coil spring 42, a valve body 44 touches a base end 37a of the first nozzle member 37, so that the coloring material is positioned in the flow path 39. Then, when the coil 40 is powered, the valve body 44 attached to a disk
  • the coloring nozzle 31 jets the coloring material from the second nozzle member 50. Further, the coil 40 is powered for a predetermined period of time based on the instruction from the driver 24. Therefore, the coloring nozzle 31 jets per specific amount of the coloring material onto the outer surface 3a of the electric wire 3.
  • the coloring material means a liquid substance, in which a coloring agent (organic substance for use in industry) is dissolved and dispersed in water or other solvent. Namely, the coloring material is composed of coloring agent and the solvent.
  • the organic substance (coloring agent) is a dye or a pigment (most of them being organic substances and synthetic substances). Sometimes, a dye is used as a pigment and a pigment is used as a dye.
  • the coloring material is a coloring liquid or coating material.
  • the coloring liquid is a liquid, in which a dye is dissolved or dispersed in a solvent.
  • the coating material is a material, in which a pigment is dispersed in a liquid dispersion.
  • the coloring liquid is deposited on the outer surface 3a of the electric wire 3, the dye permeates into the sheath 5.
  • the coating material is deposited on the outer surface 3a of the electric wire 3, the pigment is deposited on the outer surface 3a without permeating into the sheath 5. That is, the coloring device 13 dyes a part of the outer surface 3a of the electric wire 3 with a dye or coats a part of the outer surface 3a of the electric wire 3 with a pigment. That is, "to color the outer surface 3a of the electric wire 3" means to dye a part of the outer surface 3a of the electric wire 3 with a dye or to coat a part of the outer surface 3a of the electric wire 3 with a pigment.
  • the solvent and liquid dispersion have an affinity to the synthetic resin that constitutes the sheath 5 in order to securely permeate the dye into the sheath 5 or to allow the pigment to securely be deposited on the outer surface 3a.
  • the coloring liquid is used as the coloring material, and Acetone is used as the solvent.
  • the coloring material source 32 receives the liquid coloring material, and is associated with the coloring nozzle 31.
  • the coloring material source 32 supplies the coloring material to an inside of the inlet 36 of the corresponding coloring nozzle 31.
  • the pressurized air source 33 supplies pressurized air to an inside of the coloring material source 32. Because the pressurized air source 33 supplies the pressurized gas into the inside of the coloring material source 32 according to the request of the driver 24, when the valve body 44 of the coloring nozzle 31 is removed from the base end 37a of the first nozzle member 37, the coloring material in the flow path 39 is rapidly jetted through the first nozzle member 37 and the second nozzle member 50.
  • the coloring device 13 can change a width of the coloring area 3b of the electric wire 3, and a coverage of the coloring material around the electric wire 3 by changing a gas pressure of the pressurized air source 33, a nozzle diameter of the coloring nozzle 31, a speed of the coloring material via the nozzle, or viscosity of the coloring material. Therefore, an arbitrary design pattern can be effectively formed.
  • the sliding member 14 is connected to the driver 24. According to a driving instruction of the driver 24, the driving motor moves the case 14a to a predetermined position along a rectangular rail 14b. Namely, the control unit 20 controls the movement of the case 14a in an up-down direction (Y-axis) of Fig. 3, namely, in the longitudinal direction "A" of the electric wire 3, and corresponds to the transportation device in claims. Further, the sliding member 14 holds the case 14a in a manner that the coloring device 13 jets the coloring material from the coloring nozzle 31 in a direction perpendicular to the electric wire 3, and moves the case 14a in the same manner.
  • the oscillation member 18 includes ⁇ a plate-shaped holding member 81 for holding the case 14a having a plurality of coloring devices 135 a substantially Lrshaped substrate 82 on which the coloring material sources 32 of the coloring devices 13 are mounted; a fixing member 83 for fixing the holding member 81 rotatably on the substrate 82; and an air cylinder 84 for moving the end of the case 14a (tips of the coloring devices 13) on a circle of which center is an arbitrary center positioned on a line perpendicular to the electric wire 3.
  • the air cylinder 84 is connected to the control unit 20, and a piston 85 is reciprocated in a predetermined range according to a request of the CPU 21.
  • the case 14a is reciprocated around the fixing member 83 in a direction perpendicular to the longitudinal direction "A" of the electric wire 3.
  • the coloring material can be jetted from the coloring nozzle 31, while the coloring nozzle 31 disposed in the case 14a is reciprocated like a pendulum perpendicular to the longitudinal direction "A" of the electric wire 3.
  • the coloring material can be surely attached to the whole circumference of each coloring area 3b on the outer surface 3a of the electric wire 3.
  • the anti-scattering member 71 includes a groove 72 having a substantially U-shaped section in which the electric wire 3 is set.
  • a size and a shape of the groove 72 are so formed not to be touched with all the types of the electric wires 3 which are to be colored. Coloring material 7 dropped from the electric wire 3 or scattered is discharged outside through the groove 72.
  • the anti- scattering member 71 is mounted movably upward and downward against a substrate 90 with an elevating mechanism 73. Thus, using the anti- scattering member 71 allows plenty of coloring material to be attached to the electric wire 3, so that the coloring material can be surely attached to the whole circumference of the electric wire 3.
  • a cleaning member 91 includes a cleaning tank 92 for cleaning the coloring nozzles 31 of the coloring devices 13. When the rail 14b shown in Fig. 3 transports the case 14a to the cleaning tank 92, the coloring nozzles 31 in the case 14a are cleaned, and liquid waste is discharged outside.
  • the control unit 20 selects the coloring devices 13 corresponding to the color to be colored, and controls the movement of the electric wire 3 in Fig. 3 in the longitudinal direction "A" against the corresponding coloring devices 13. Then, while the coloring nozzle 31 of the coloring device 13 is at a coloring position, the air cylinder 84 is driven to oscillate the coloring nozzle 31, and while the coloring nozzle 31 is oscillated, the coloring material 7 is jetted from the coloring nozzle 31.
  • the driver 24 transports the coloring devices 13 in a direction of an arrow "C" composed of a solid line and a broken line indicated by "START' and "STOP" in Fig. 8.
  • the coloring material 7 is jetted from the coloring nozzles 31 of the coloring devices 13 reciprocating in a circular path, so that the coloring material 7 is attached to the coloring areas 3b.
  • the design pattern data in ROM 22 includes : identifying data of the electric wire 3; data for coloring in turn corresponding to the coloring area 3b; data for start-moving position; data for stop-moving position! data of the size (width) of the electric wire 3; and data for start-coloring position; data for stop -coloring position.
  • the CPU 21 executes a program of coloring and transporting control process shown in Fig. 9, the CPU 21 receives the identifying data of the electric wire 3 in step S31 by reading a bar code with a reader, or by a worker's input, and then stores the identifying data in the RAM 23. Then, the process goes to step S32.
  • step 32 the CPU 21 receives one design pattern data corresponding to the identifying data from among a plurality of design pattern data, and stores the design pattern in the RAM 23. Then, the process goes to step S33.
  • step S33 the CPU requests the driver 24 to transport the coloring device 13 corresponding to the color data of the design pattern data in RAM 23 to a start-moving position indicated by a first data for start-moving position. Resultingly, the driver 24 drives the sliding member 14 to transport the corresponding coloring device 13 to the first start-moving position ("START" in Fig. 8). Then, the process goes to step S34.
  • the coloring unit 30 includes a plurality of coloring devices 13, the corresponding coloring device 13 is a reference of moving control.
  • step 34 according to turning position data of the design pattern data in RAM 13, the CPU 21 requests the driver 24 to start moving the coloring devices 13. Consequently, the driver 24 drives the sliding member 14 to transport the corresponding coloring device 13 to the end position ("END" in Fig. 8) in a specific speed in the longitudinal direction "A" of the electric wire 3. Then, the process goes to step S35.
  • step S35 coloring control device
  • whether the coloring device 13 is positioned at a start position or not is judged according to a comparison result between position data from the driver 24 and start -coloring position data of the design pattern data.
  • the CPU 21 waits until the coloring device 13 reaches the start-coloring position by repeating the judgment. If it is judged that the coloring device 13 is positioned at the start-coloring position ("Y' in S35), the process goes to step S36.
  • step S36 (coloring control device)
  • the CPU requests the coloring device 13 positioned at the coloring position to start jetting the coloring material, and requests the air cylinder 84 to start, for example, one way or round trip. Consequently, the driver 24 makes the coloring device 13 jet the coloring material, and the air cylinder 84 moves the coloring nozzle 31 of the coloring device 13 in a circular path one way or round trip. Then, the process goes to step S37.
  • step S37 coloring control device
  • whether the coloring device 13 is positioned at a stop-coloring position or not is judged according to a comparison result between the position data from the driver 24, and stop -coloring position data from the design pattern data.
  • the CPU 21 waits until the coloring device 13 reaches the stop-coloring position. If it is judged that the coloring device 13 is positioned at the stop -coloring position ("Y' in step S37), the process goes to step S38.
  • step S38 coloring control device
  • the CPU 21 requests the driver 24 to stop jetting the coloring material from the moving coloring device 13. Consequently, the driver 24 makes the coloring device 13 stop jetting the coloring agent.
  • step S39 various ways can be accepted, for example, detecting a predetermined time period from the time when the start-coloring position is detected, or detecting the stop -coloring position based on a traveling time one way, or round trip of the coloring device 13.
  • step S39 whether all the coloring areas 3b on the electric wire 3 has been colored or not is judged according to the judging result of whether the coloring device 13 reaches the stop-moving position or not.
  • the process goes back to step S35, and a series of processes are repeated.
  • the process goes to step S40.
  • step S40 whether the CPU 21 receives a request for coloring the next electric wire 3 or not is judged. When judged that the CPU 21 receives the request ("Y" in S40), the process goes back to step 31, and the series of processes are repeated. When judged that the CPU 21 does not receive the request ("N" in S40), the process goes to step S41. In step S41, whether the CPU 21 receives a termination request or not is judged. When judged that the CPU 21 does not receive the termination request ("N" in S4l), the process goes back to step S31, and the series of processes are repeated to color the next electric wire 3. When judged that the CPU 21 receives the termination request ("Y" in S41), the process ends.
  • the electric wire coloring apparatus 1 When receiving a product number of the electric wire 3 to be colored, the electric wire coloring apparatus 1 extracts the design pattern data corresponding to the product number.
  • This design pattern data includes data corresponding to three coloring areas 3b.
  • the start-coloring position data corresponding to the first coloring area 3b includes positions “LIl”, “L13”, “L15”.
  • the stop -coloring position data includes positions "L12", “L14”, “L16”.
  • the coloring unit 30 stops jetting the coloring material 7, and stops moving the coloring device 13 in the circular path. Resultingly, the coloring material 7 jetted from the coloring nozzle 31 is attached to the whole circumference of the first coloring area 3b on the outer surface 3a of the electric wire 3.
  • the coloring unit 30 starts jetting the coloring material 7, and moves the coloring device 13 in a circular path one way, or round trip. Then, when the coloring device 13 reaches the stop-coloring position "L14", the coloring unit 30 stops jetting the coloring material 7, and stops moving the coloring device 13 in the circular path. Then, when the coloring device 13 reaches the third start-coloring position "L15”, the coloring unit 30 starts jetting the coloring material 7, and moves the coloring device 13 in a circular path one way, or round trip. When the coloring device 13 reaches the stop-coloring position "L16", the coloring unit 30 stops jetting the coloring material 7, and stops moving the coloring device 13 in the circular path.
  • the color bars 6 composed of three coloring area 3b are formed on the whole circumference of the outer surface 3a of the electric wire 3.
  • the transporting apparatus 10 transports the pegs 11 of the clamping rod to set the next electric wire 3
  • the processes are repeated to form the color bars 6 on the whole circumference of the outer surface 3a of the electric wire 3.
  • the coloring nozzle 31 as the tip of the coloring device 13 which jets the coloring material 7 is reciprocated in a circular path perpendicular to the longitudinal direction "A" of the electric wire 3, and the coloring device 13 is only moved in the longitudinal direction "A" of the electric wire 3, so that the coloring material 7 is attached to the whole circumference of the coloring areas 3b.
  • the color bars 6 are surely formed on the whole circumference of the outer surface 3a of the electric wire 3. Therefore, the color bars 6 can be recognized from every direction. Further, because the coloring devices 13 are moved only one longitudinal direction, the transporting device can be simplified and the cost of the transporting device can be reduced. Accordingly, the structure and the control of the electric wire coloring apparatus 1 can be simplified. Further, the electric wire 3 having the color bars 6 has better visibility and design sense than the electric wire 3 having one sided color areas on the outer surface 3a has. Further, because the color bars 6 for identifying the electric wire 3 are easily formed on the electric wire 3, the stock of the electric wires 3 corresponding to colors of the electric wires 3 can be reduced. Further, shelves for the electric wires can also be reduced corresponding to the reduction of the stock of the electric wires. Therefore, a space for processing the electric wires also can be reduced.
  • the coloring nozzle 31 of the coloring device 13 is moved on the circle of which center is located on a line perpendicular to the electric wire 3, the coloring material 7 is jetted over a wide range of the electric wire 3. Therefore, the color bars 6 are surely formed in whole circumference of the outer surface 3a of the electric wire 3, and the coloring apparatus 1 easily adapts to a change of size of the electric wire 3.
  • the anti- scattering member 71 prevents the coloring material 7 from scattering, a range of the reciprocating movement in a circular path of the coloring device 13 can be increased. Therefore, the color bars 6 are surely formed in whole circumference of the outer surface 3a of the electric wire 3, and the coloring apparatus 1 easily adapts to a change of size of the electric wire 3. Because the controlling device 21a controls the coloring device 13 to jet the coloring material only when the reciprocating device 18 reciprocates the coloring nozzle 31 of the coloring device 13, the control of the coloring apparatus 1 is further simplified, and discharge amount of the coloring material 7 is reduced.
  • the electric wire coloring apparatus 1 colors one electric wire 3.
  • the present invention is not limited to this.
  • Various embodiments can be used. For example, in a state that a plurality of electric wires 3 are arranged parallel in a direction "F" perpendicular to the longitudinal direction "A" of the electric wire 3, the coloring nozzle 31 is moved in a circular path around the center electric wire 3.
  • the sliding member 14 moves the coloring device 13 and the oscillation member 18 in the longitudinal direction "A" of the electric wire 3.
  • the transporting apparatus 10 may move the electric wire 3.

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Abstract

An electric wire coloring apparatus for forming color bands 6 on an outer surface 3a of an electric wire 3 by attaching coloring material on the outer surface 3a of the electric wire 3, said apparatus including: a coloring device 13, a reciprocating device 18, a transportation device 14 and a controlling device 21.

Description

DESCRIPTION
Electric Wire Coloring Apparatus [Technical field]
This invention relates to an electric wire coloring apparatus for coloring the electric wire having a conductive core wire and an insulating sheath for covering the core wire. [Back ground]
Various electronic components are mounted on a vehicle. Therefore, a wiring harness is arranged in the vehicle for supplying electric power from a battery to the electronic components and supplying control signals from a computer to the electronic components. The wiring harness includes a plurality of electric wires and a connector attached to ends of the electric wires.
The electric wire includes a conductive core wire and a sheath made of insulating synthetic resin for covering the core wire. The electric wire is a so-called coated wire. The connector includes conductive terminals and an insulating connector housing. The terminals are connected to the ends of the electric wires and electrically connected to the core wires of the electric wires. The connector housing has a box shape, and receives the terminals.
When assembling the wiring harness, firstly, the electric wires are cut in a specific length, and then the terminals are attached to the ends of the electric wires. Then, if necessary, the electric wires are connected to each other. Then, the terminals are inserted into the connector housing. Thus, the wiring harness is assembled.
A size of the core wire, material of the sheath (for example, heat resistance property) and a purpose of use of each electric wire in the wiring harness should be distinguished. The purpose of use is, for example, transmitting control signals of an air bag, ABS (Antilock Brake System), or a vehicle speed, or supplying electric power.
For distinguishing the purpose of use, conventionally, the electric wires of the wiring harness have had a stripe pattern of two different colors on outer surfaces thereof. When forming the sheath by extruding synthetic resin around the core wire, a coloring material having a desired first color is previously mixed with the synthetic resin of the sheath. Then, another coloring material having a second color different from the first color is attached to a part of the outer surface of the sheath, namely, the synthetic resin covering the core wire. Thus, by coloring the part of the outer surface of the sheath, the electric wire has the stripe pattern.
However, when producing electric wires, types of the electric wires are judged by their colors. There is a problem that the electric wire having a stripe pattern may not be distinguished by seeing from a specific direction.
Accordingly, an applicant of the present invention proposes an electric wire coloring apparatus for attaching coloring material onto an outer surface of the electric wire in a spiral shape of which center is a core wire of the electric wire by jetting a specific amount of coloring material onto an outer surface of the electric wire (see Patent Document l).
[Patent Document l] Japanese published patent application No. 2004-79200
[Disclosure of the invention] [Problem to be solved by the invention] By having a spiral pattern, the colors on the outer wall of the electric wire can be seen from every direction. However, because types of the electric wires are increased, it is difficult to manage the types with a single color. Therefore, the types are managed with a combination of colors. However, there is a problem that multiple colored spiral stripes may not be recognized from a specific direction.
Further, when a coloring nozzle of a coloring device of the coloring apparatus is transported along the electric wire, the nozzle should be transported in a longitudinal direction of the electric wire and a direction perpendicular to the electric wire. Therefore, it is necessary to use a biaxial control system with two motors. Accordingly, two uniaxial robots are required. Thus, there is a problem that cost of the coloring apparatus becomes very high, and a control system of the coloring apparatus is complicated. Further, there is a problem that when a size of the electric wire is changed, the coloring apparatus becomes large sized, because a travel distance of the coloring device is adjusted corresponding to the size of the electric wire.
Accordingly, an object of the present invention is to provide an electric wire coloring apparatus having a simple device configuration to improve visibility and design quality of an electric wire. [Means for solving problem] According to the claim 1, as shown in Fig. 1, there is provided an electric wire coloring apparatus for forming color bands 6 on an outer surface 3a of an electric wire 3 by attaching coloring material on the outer surface 3a of the electric wire 3, said apparatus comprising: a coloring device 13 for jetting the coloring material toward the outer surface 3a of the electric wire 31 a reciprocating device 18 for reciprocating a tip of the coloring device 13, from which the coloring material is jetted, and moving the tip circularly in a direction crossing a longitudinal direction "A" of the electric wire 3 in a manner that each coloring material is attached to whole circumference of a coloring area 3b corresponding to each color band 6; a transportation device 14 for transporting either the coloring device 13 and the reciprocating device 18 or the electric wire 3 in the longitudinal direction "A" of the electric wire 3; and a controlling device 21a for controlling a jet of the coloring material from the coloring device 13, and a reciprocation of the coloring device after the transporting device 14 transports the coloring device 13 to a position of the coloring area 3b to which the coloring device 13 attaches the coloring material.
According to the electric wire coloring apparatus claimed in claim 1, when the transportation device 14 transports either the coloring device 13 and the reciprocating device 18 or the electric wire 3 in the longitudinal direction "A" of the electric wire 3, the controlling device 21a controls the coloring device 13 to jet out the coloring material, and the reciprocating device 18 reciprocates the jetting tip of the coloring device 13 in a circular path. Then, the coloring material is attached to whole circumference of the coloring area 3b, and the color band 6 is formed on the outer surface 3a of the electric wire 3.
According to the claim 2, as shown in Fig. l,there is provided the electric wire coloring apparatus as claimed in claim 1, wherein the reciprocating device 18 includes an air cylinder for moving the tip of the coloring device 13 on a circle of which center is located on a line perpendicular to the electric wire 3. According to the electric wire coloring apparatus claimed in claim 2, the air cylinder of the reciprocating device 18 moves the tip of the coloring device 13 on the circle of which center is located on a line perpendicular to the electric wire 3.
According to the claim 3, as shown in Fig. 1, there is provided the electric wire coloring apparatus as claimed in claim 1 or 2, wherein the coloring device 13 includes antr scattering member 71 for preventing the coloring material jetted to the electric wire from scattering.
According to the electric wire coloring apparatus claimed in claim 3, when the coloring device 13 jets the coloring agent even while being reciprocated in a circular path, the antr scattering member 71 prevents the coloring material from scattering.
According to the claim 4, as shown in Fig. 1, there is provided the electric wire coloring apparatus as claimed in any one of claims 1 to 3, wherein the controlling device 21a controls the coloring device 13 to jet the coloring material only when the reciprocating device 18 reciprocates the tip of the coloring device 13.
According to the electric wire coloring apparatus claimed in claim 4, the controlling device 21a allows the coloring device 13 to jet the coloring material only when the reciprocating device 18 reciprocates the tip of the coloring device 13 in a circular path. [Effect of the invention]
According to the present invention as claimed in claim 1, the reciprocating device 18 reciprocates the tip of the coloring device 13, from which the coloring unit is jetted, in a circular path crossing the longitudinal direction of the electric wire, and the transportation device 14 transports the coloring device 13 so that the coloring material is attached to whole circumference of the coloring area. Therefore, without moving the coloring device 13 in a direction crossing the electric wire, the color band is surely formed in whole circumference of the outer surface of the electric wire. Therefore, the color bands corresponding to the types of the electric wires are easily recognized from any direction. Further, a plurality of coloring devices 13 are transported in only one direction, namely, the longitudinal direction of the electric wire. Therefore, the transportation device 14 can have a simple structure, and cost of the electric wire coloring apparatus can be reduced. Accordingly, the structure and the control of the coloring apparatus can be simplified. Further, the visibility and the design quality of the electric wire is further improved than and the electric wire of which outer surface is partially colored. Further, because the color band allowing easy recognition of the electric wire is easily formed, stocks of the electric wires corresponding to colors of the electric wires can be reduced. Further, shelves for the electric wires can also be reduced corresponding to the reduction of the stock of the electric wires. Therefore, a space for processing the electric wires also can be reduced.
According to the present invention as claimed in claim 2, in addition to an effect of claim 1, because the tip of the coloring device 13 is moved on the circle of which center is located on a line perpendicular to the electric wire 3, the coloring material is jetted over a wide range of the electric wire. Therefore, the color bar is surely formed in whole circumference of the outer surface of the electric wire, and the coloring apparatus easily adapts to a change of size of the electric wire. According to the present invention as claimed in claim 3, in addition to an effect of claim 1 or 2, because the anti- scattering member 71 prevents the coloring material from scattering, a range of the reciprocating movement in a circular path of the coloring device 13 can be increased. Therefore, the color bar is surely formed in whole circumference of the outer surface of the electric wire, and the coloring apparatus easily adapts to a change of size of the electric wire.
According to the present invention as claimed in claim 4, in addition to an effect of any one of claims 1 to 3, because the controlling device 21a controls the coloring device 13 to jet the coloring material only when the reciprocating device 18 reciprocates the tip of the coloring device 13, the control of the coloring apparatus is further simplified, and discharge amount of the coloring material is reduced. [Brief description of drawings]
[Fig. 1] a schematic view showing a basic structure of an electric wire coloring apparatus according to the present invention. [Fig. 2] an explanatory view showing a process flow of a wiring harness producing system using the electric wire coloring apparatus according to the present invention.
[Fig. 3] a schematic view showing a schematic structure of the electric wire coloring apparatus according to the present invention. [Fig. 4] a perspective view showing a relationship among a coloring device, a reciprocating device, and electric wires shown in Fig. 3.
[Fig. 5] an explanatory view showing color bars formed on the electric wire.
[Fig. 6] a sectional view showing a structure of a coloring nozzle of the coloring device. [Fig. 7] an explanatory view showing an operation of an oscillation part shown in Fig. 4.
[Fig. 8] an explanatory view showing how to color the electric wire.
[Fig. 9] a flowchart showing a part of a control operation of moving the coloring device executed by a CPU shown in Fig. 3. [Explanations of letters or numerals]
1 electric wire coloring apparatus
3 electric wire
3a outer surface of the electric wire 6 color bands
13 coloring device
14 transporting device (sliding member)
18 reciprocating device (oscillation member) 21a controlling device (CPU) A longitudinal direction of the electric wire
[Best mode for carrying out the invention]
An embodiment of an electric wire coloring apparatus 1 according to the present invention will be explained with reference to Figs. 2 to 9.
As shown in Fig. 2, a wiring harness producing system includes an electric wire cutting process Pl, a coloring process P2, a terminal press-fitting process P3, a joint process P4, and the like. In this best mode, the electric wire coloring apparatus 1 is installed on the coloring process P2. If the coloring process P2 is not included in the system, the electric wire coloring apparatus 1 is installed on the electric wire cutting process Pl, or the terminal press-fitting process P3. Incidentally, the wiring harness includes a plurality of sub wiring harnesses. The sub wiring harnesses are respectively mounted on corresponding systems in a vehicle. Each sub wiring harness includes a plurality of electric wires and connectors attached to ends of the electric wires. An electric wire producing apparatus 100 cuts a long reel-shaped electric wire into the electric wires each having a specified length, and engages the ends of the electric wires with a clamping rod each in a U- shape. Then, a transporting apparatus 10 mounted through the processes transports the clamping rod to the coloring process P2. The transporting apparatus 10 includes a belt and a chain circulating through the processes, a driving motor for circulating the bent and the chain, and a controller for controlling the driving motor. Namely, the controller controls the driving motor to transport the clamping rod to each process. Further, according to the best mode, the controller controls the driving motor intermittently corresponding to a cycle (tact time) of press-fitting of later-described pres-fitting apparatus, and consequently transports the electric wires intermittently.
The clamping rod includes a plurality of pegs 11 for catching the electric wires, and fixing parts for fixing the pegs in a predetermined interval. In the electric wire producing apparatus 100, the pair of pegs 11 catches the electric wire in a U"shape using a circular head for turning the electric wire in a TJ- shape.
In the coloring process P2, color bands for distinguishing the electric wire are formed by attaching liquid coloring material onto outer surfaces of the electric wires transported from the electric wire cutting process Pl. The coloring process P2 includes the later-described electric wire coloring apparatus 1 according to the present invention.
In the terminal press-fitting process P3, sorting, preparing an applicator, press-fitting, checking, and marking are done. Namely, the electric wires are sorted corresponding to types of terminals. Preparing the applicator means that the applicator of a press-fitting apparatus 200 is changed corresponding to types of the terminals, or a height of press-fitting is adjusted. The applicator includes an elevating upper mold (crimper) and a fixed bottom mold (anvil) as press-fitting tools. After the terminal is press-fitted onto the end of the electric wire, the press-fitting condition is checked by a visual check or a TV camera. Then, for distinction in a later-described terminal-insertion process, an identification mark is marked on the terminal with a felt pen.
The press-fitting apparatus 200 has a well-known structure and press-fits various types of terminals. The press-fitting apparatus 200 press-fits the terminal onto the electric wire transported by the clamping rod using the press-fitting tools.
In the joint process P4, sorting, stripping, preparing the applicator, press-fitting, checking, and winding a joint tape are done. Namely, firstly, the electric wires having terminals of the coloring process P2 are sorted corresponding to types of joint terminals, and joint positions. Next, the applicator is prepared corresponding to the joint terminal similar to the press-fitting process. Then, an end of another electric wire is jointed with the joint terminal at the stripping position of the electric wire. After checking the press-fitting condition, jointing part is wounded with an insulating vinyl tape. In the following process, for example, the electric wires press-fitted at the terminal press-fitting process P3, and the electric wires jointed at the joint process P4 are sorted by each product number. Then, the terminals of the electric wires are inserted into the connector housing to assemble the sub wiring harness. The electric wire coloring apparatus 1 as shown in Figs. 3 and 4 are provided at the coloring process P2 for forming color bands on a part of the outer surface 3a of the electric wire 3 shown in Fig. 5. Namely, the electric wire coloring apparatus 1 attaches the liquid coloring material in whole circumference of the outer surface 3a of the electric wire 3 to form the color bands 6.
The electric wire 3 is a component of the wiring harness arranged in a vehicle. As shown in Fig. 5, the electric wire 3 includes a plurality of conductive core wire 4 and an insulating sheath 5. The core wire 4 is formed by twisted leads. The lead as a component of the core wire 4 is made of conductive metal. The core wire 4 may be composed of a single lead. The sheath 5 is made of synthetic resin, such as polyvinyl chloride (PVC). The sheath 5 covers the core wire 4. Therefore, the outer surface 3a of the electric wire 3 is an outer surface of the sheath 5.
The sheath 5 is monochromatic. The outer surface 3a of the electric wire 3 may be monochromatic by mixing coloring material with the synthetic resin of the sheath 5.
Bundling the electric wires 3 and Attaching connectors onto the ends of the electric wires 3 form the wiring harness. The connectors are connected to connectors of various electronic components in a vehicle. Thus, the electric wires 3 of the wiring harness send signals or power to the electronic components. Color bars 6 are formed on the coloring areas 3b on the outer surface 3a of the electric wire 3 with the coloring material. Firstly, the coloring material is attached to a front side of the coloring area 3b, and then runs to the backside of the coloring area 3b, so that the coloring material is attached in whole circumference of the coloring area 3b. In the best mode, widths of the coloring areas 3b corresponding to the color bars in the longitudinal direction of the electric wire 3 are varied. However, the widths thereof may be the same.
The widths of the coloring areas 3b, the number of the coloring areas 3b, and a combination of colors thereof indicate a size, a purpose of use, and the like of the electric wire 3. Accordingly, the color bars 6 indicate the size, the purpose of use of the electric wire 3. The color bars 6 may indicate a type of the electric wire 3, the system in which the electric wire 3 is used, or the like.
The identity of the color bar 6 is secured by attaching the coloring material in a ring shape in whole circumference of the outer surface 3a of the electric wire 3. Similar to the conventional electric wire, the electric wire is formed by tying the core wires together in a white sheath. Then, the electric wire is marked so that marking the conventional band mark for identifying a size or a type of the electric wire is not necessary. Thus, the electric wire 3 having identity can be produced. As shown in Figs. 3 and 4, the electric wire coloring apparatus 1 includes a control unit 20, a coloring unit 30, and a driver 24 for driving the coloring unit 30.
The control unit 20 includes^ a CPU 21 for processing and controlling according to a predetermined program! a ROM 22 for receiving the program of the CPU 21; and a RAM 23 for receiving various data and providing a working area for the CPU 21.
The ROM 22 stores various programs such as coloring and transforming control program for working the CPU 21 as a control device for coloring or transporting in claims, and various design pattern data for forming the color bars 6 corresponding to the color and the size of the electric wire 3. The design pattern data includes the coloring area 3b, the color for coloring the coloring area 3b, and a relative position of the coloring area 3b.
The driver 24 is connected to both the control unit 20 and the coloring unit 30. The driver 24 controls the jetting and the transporting in the longitudinal direction "A" of a coloring device 13 according to an instruction from the control unit 20. The driver 24 outputs a position data (counter value) corresponding to the position of the transported coloring device 13 to the control unit 20.
The coloring unit 30 includes: a plurality of coloring devices 13 corresponding to the colors of the coloring material; a sliding member 14 as the transportation device which can transport a case 14a for receiving the coloring device 13 in the longitudinal direction "A" of the electric wire 3 which is a direction "Y' in Fig. 5; an oscillating member 18 as the reciprocating device! a anti- scattering member 71; and a washing member 91. The plurality of coloring devices 13 are juxtaposed along the longitudinal direction "A" of the electric wire 3. Incidentally, the longitudinal direction "A" is perpendicular to a transporting direction "F' of the electric wire 3. Each coloring device 13 includes: a coloring nozzle 31; a coloring material source 32; and a pressurized air source 33. The coloring nozzle 31 jets the liquid coloring material from the coloring material source 32 onto the outer surface 3a of the electric wire 3. The coloring nozzle 31 attaches a drop of the jetted coloring material onto the outer surface
3a of the electric wire 3 and colors (marks) at least a part of the outer surface 3a of the electric wire 3. As shown in Fig. 6, the coloring nozzle 31 includes^ a cylindrical nozzle main body 34; an insert member 35 received in the nozzle main body 34; an inlet 36; a first nozzle member 37; a valve mechanism 38; a second nozzle member 50; and a connection pipe 51.
The second nozzle member 50 is formed in a cylindrical shape. The second nozzle member 50 is made of Polyetheretherketone (PEEK). An outer diameter of the second nozzle member 50 is substantially equal to an outer diameter of the first nozzle member 37.
An inner diameter of the second nozzle member 50 is smaller than an inner diameter of the first nozzle member 37. The second nozzle member 50 is arranged coaxially with the first nozzle member 37, and connected to the first nozzle member 37.
The second nozzle member 50 is disposed nearer the electric wire 3 than the first nozzle member 37. A gap between the first nozzle member 37 and the second nozzle member 50 is watertight. The coloring material flows along an arrow "S" in a longitudinal direction of the first nozzle member 37 through insides of the second nozzle member 50 and the first nozzle member 37. The arrow "S" indicates a flowing direction of the coloring material.
An end face 50a of the second nozzle member 50 near the first nozzle member 37 is projected toward an inside of the first nozzle member 37 from an inner wall of the first nozzle member 37. Further, the end face 50a is formed flat in a direction perpendicular to the arrow "S".
Incidentally, the first nozzle member 37 and the second nozzle member 50 compose a nozzle member 47. The nozzle member 47 communicates with an inside of the insert member 35, and the coloring material flows through the inside thereof.
The connection pipe 51 is made of fluorine resin, and formed in a cylindrical shape. An inner diameter of the connection pipe 51 is substantially equal to outer diameters of the first nozzle member 37 and the second nozzle member 50. The connection pipe 51 is fitted into outer walls of both the first nozzle member 37 and the second nozzle member 50, and connects the first nozzle member 37 and the second nozzle member 50. Further, the connection pipe 51 allows the second nozzle member 50 to be detachable from the first nozzle member 37.
Each coloring device 13 is connected to the control unit 20, and controlled by the control unit 20. The coloring nozzle 31 leads the coloring material from the coloring material source 32 via the inlet 36 to a flow path 39. Then, when a coil 40 is not powered, owing to an energizing force of a coil spring 42, a valve body 44 touches a base end 37a of the first nozzle member 37, so that the coloring material is positioned in the flow path 39. Then, when the coil 40 is powered, the valve body 44 attached to a disk
46 is removed from the base end 37a of the first nozzle member 37 against the energizing force of the coil spring 42, so that the coloring material in the flow path 39 flows through the insides of the first nozzle member 37 and the second nozzle member 50 along the allow "S". Then, the coloring nozzle 31 jets the coloring material from the second nozzle member 50. Further, the coil 40 is powered for a predetermined period of time based on the instruction from the driver 24. Therefore, the coloring nozzle 31 jets per specific amount of the coloring material onto the outer surface 3a of the electric wire 3.
The coloring material means a liquid substance, in which a coloring agent (organic substance for use in industry) is dissolved and dispersed in water or other solvent. Namely, the coloring material is composed of coloring agent and the solvent. The organic substance (coloring agent) is a dye or a pigment (most of them being organic substances and synthetic substances). Sometimes, a dye is used as a pigment and a pigment is used as a dye. As a more concrete example, the coloring material is a coloring liquid or coating material.
The coloring liquid is a liquid, in which a dye is dissolved or dispersed in a solvent. The coating material is a material, in which a pigment is dispersed in a liquid dispersion. When the coloring liquid is deposited on the outer surface 3a of the electric wire 3, the dye permeates into the sheath 5. When the coating material is deposited on the outer surface 3a of the electric wire 3, the pigment is deposited on the outer surface 3a without permeating into the sheath 5. That is, the coloring device 13 dyes a part of the outer surface 3a of the electric wire 3 with a dye or coats a part of the outer surface 3a of the electric wire 3 with a pigment. That is, "to color the outer surface 3a of the electric wire 3" means to dye a part of the outer surface 3a of the electric wire 3 with a dye or to coat a part of the outer surface 3a of the electric wire 3 with a pigment.
Preferably, the solvent and liquid dispersion have an affinity to the synthetic resin that constitutes the sheath 5 in order to securely permeate the dye into the sheath 5 or to allow the pigment to securely be deposited on the outer surface 3a. Incidentally, in this embodiment, the coloring liquid is used as the coloring material, and Acetone is used as the solvent.
The coloring material source 32 receives the liquid coloring material, and is associated with the coloring nozzle 31. The coloring material source 32 supplies the coloring material to an inside of the inlet 36 of the corresponding coloring nozzle 31.
The pressurized air source 33 supplies pressurized air to an inside of the coloring material source 32. Because the pressurized air source 33 supplies the pressurized gas into the inside of the coloring material source 32 according to the request of the driver 24, when the valve body 44 of the coloring nozzle 31 is removed from the base end 37a of the first nozzle member 37, the coloring material in the flow path 39 is rapidly jetted through the first nozzle member 37 and the second nozzle member 50.
The coloring device 13 can change a width of the coloring area 3b of the electric wire 3, and a coverage of the coloring material around the electric wire 3 by changing a gas pressure of the pressurized air source 33, a nozzle diameter of the coloring nozzle 31, a speed of the coloring material via the nozzle, or viscosity of the coloring material. Therefore, an arbitrary design pattern can be effectively formed.
The sliding member 14 is connected to the driver 24. According to a driving instruction of the driver 24, the driving motor moves the case 14a to a predetermined position along a rectangular rail 14b. Namely, the control unit 20 controls the movement of the case 14a in an up-down direction (Y-axis) of Fig. 3, namely, in the longitudinal direction "A" of the electric wire 3, and corresponds to the transportation device in claims. Further, the sliding member 14 holds the case 14a in a manner that the coloring device 13 jets the coloring material from the coloring nozzle 31 in a direction perpendicular to the electric wire 3, and moves the case 14a in the same manner.
The oscillation member 18 includes^ a plate-shaped holding member 81 for holding the case 14a having a plurality of coloring devices 135 a substantially Lrshaped substrate 82 on which the coloring material sources 32 of the coloring devices 13 are mounted; a fixing member 83 for fixing the holding member 81 rotatably on the substrate 82; and an air cylinder 84 for moving the end of the case 14a (tips of the coloring devices 13) on a circle of which center is an arbitrary center positioned on a line perpendicular to the electric wire 3. The air cylinder 84 is connected to the control unit 20, and a piston 85 is reciprocated in a predetermined range according to a request of the CPU 21. Because a tip of the piston 85 abuts on the holding member 81, the case 14a is reciprocated around the fixing member 83 when the piston 85 is reciprocated. Namely, the coloring nozzle 31 of each coloring device 13 is reciprocated in a circular path against the electric wire 3 in a range "R" of Fig. 7.
In the oscillation member 18, when the air cylinder 84 is reciprocated according to the instruction of the CPU 21, the case 14a is reciprocated around the fixing member 83 in a direction perpendicular to the longitudinal direction "A" of the electric wire 3. Namely, the coloring material can be jetted from the coloring nozzle 31, while the coloring nozzle 31 disposed in the case 14a is reciprocated like a pendulum perpendicular to the longitudinal direction "A" of the electric wire 3. Resultingly, independently of the size of the electric wire 3, the coloring material can be surely attached to the whole circumference of each coloring area 3b on the outer surface 3a of the electric wire 3. The anti-scattering member 71 includes a groove 72 having a substantially U-shaped section in which the electric wire 3 is set. A size and a shape of the groove 72 are so formed not to be touched with all the types of the electric wires 3 which are to be colored. Coloring material 7 dropped from the electric wire 3 or scattered is discharged outside through the groove 72. The anti- scattering member 71 is mounted movably upward and downward against a substrate 90 with an elevating mechanism 73. Thus, using the anti- scattering member 71 allows plenty of coloring material to be attached to the electric wire 3, so that the coloring material can be surely attached to the whole circumference of the electric wire 3. A cleaning member 91 includes a cleaning tank 92 for cleaning the coloring nozzles 31 of the coloring devices 13. When the rail 14b shown in Fig. 3 transports the case 14a to the cleaning tank 92, the coloring nozzles 31 in the case 14a are cleaned, and liquid waste is discharged outside.
When the coloring area 3b is colored, the control unit 20 selects the coloring devices 13 corresponding to the color to be colored, and controls the movement of the electric wire 3 in Fig. 3 in the longitudinal direction "A" against the corresponding coloring devices 13. Then, while the coloring nozzle 31 of the coloring device 13 is at a coloring position, the air cylinder 84 is driven to oscillate the coloring nozzle 31, and while the coloring nozzle 31 is oscillated, the coloring material 7 is jetted from the coloring nozzle 31.
For example, when the color bars 6 shown in Fig. 8 are formed on the outer surface 3a of the electric wire 3, the driver 24 transports the coloring devices 13 in a direction of an arrow "C" composed of a solid line and a broken line indicated by "START' and "STOP" in Fig. 8. When the three coloring devices 13 faces the coloring areas 3b on the solid line of the arrow "C", the coloring material 7 is jetted from the coloring nozzles 31 of the coloring devices 13 reciprocating in a circular path, so that the coloring material 7 is attached to the coloring areas 3b.
Next, an embodiment of a control executed by the CPU 21 of the control unit 20 in a case that the color bars 6 shown in Fig. 5 are formed on the outer surface 3a of the electric wire 3 will be explained.
In this embodiment, the design pattern data in ROM 22 includes : identifying data of the electric wire 3; data for coloring in turn corresponding to the coloring area 3b; data for start-moving position; data for stop-moving position! data of the size (width) of the electric wire 3; and data for start-coloring position; data for stop -coloring position.
When the CPU 21 executes a program of coloring and transporting control process shown in Fig. 9, the CPU 21 receives the identifying data of the electric wire 3 in step S31 by reading a bar code with a reader, or by a worker's input, and then stores the identifying data in the RAM 23. Then, the process goes to step S32.
In step 32, the CPU 21 receives one design pattern data corresponding to the identifying data from among a plurality of design pattern data, and stores the design pattern in the RAM 23. Then, the process goes to step S33. In step S33, the CPU requests the driver 24 to transport the coloring device 13 corresponding to the color data of the design pattern data in RAM 23 to a start-moving position indicated by a first data for start-moving position. Resultingly, the driver 24 drives the sliding member 14 to transport the corresponding coloring device 13 to the first start-moving position ("START" in Fig. 8). Then, the process goes to step S34. Incidentally, in the best mode, because the coloring unit 30 includes a plurality of coloring devices 13, the corresponding coloring device 13 is a reference of moving control.
In step 34, according to turning position data of the design pattern data in RAM 13, the CPU 21 requests the driver 24 to start moving the coloring devices 13. Consequently, the driver 24 drives the sliding member 14 to transport the corresponding coloring device 13 to the end position ("END" in Fig. 8) in a specific speed in the longitudinal direction "A" of the electric wire 3. Then, the process goes to step S35.
In step S35 (coloring control device), whether the coloring device 13 is positioned at a start position or not is judged according to a comparison result between position data from the driver 24 and start -coloring position data of the design pattern data. When judged that it is not the start-coloring position ("N" in step S35), the CPU 21 waits until the coloring device 13 reaches the start-coloring position by repeating the judgment. If it is judged that the coloring device 13 is positioned at the start-coloring position ("Y' in S35), the process goes to step S36.
In step S36 (coloring control device), the CPU requests the coloring device 13 positioned at the coloring position to start jetting the coloring material, and requests the air cylinder 84 to start, for example, one way or round trip. Consequently, the driver 24 makes the coloring device 13 jet the coloring material, and the air cylinder 84 moves the coloring nozzle 31 of the coloring device 13 in a circular path one way or round trip. Then, the process goes to step S37.
In step S37 (coloring control device), whether the coloring device 13 is positioned at a stop-coloring position or not is judged according to a comparison result between the position data from the driver 24, and stop -coloring position data from the design pattern data. When it is judged that the coloring device 13 is not positioned at the stop -coloring position ("N" in step S37), the CPU 21 waits until the coloring device 13 reaches the stop-coloring position. If it is judged that the coloring device 13 is positioned at the stop -coloring position ("Y' in step S37), the process goes to step S38.
In step S38 (coloring control device), the CPU 21 requests the driver 24 to stop jetting the coloring material from the moving coloring device 13. Consequently, the driver 24 makes the coloring device 13 stop jetting the coloring agent. Then, the process goes to step S39. Incidentally, about a detection of the stop-coloring position, various ways can be accepted, for example, detecting a predetermined time period from the time when the start-coloring position is detected, or detecting the stop -coloring position based on a traveling time one way, or round trip of the coloring device 13. In step S39, whether all the coloring areas 3b on the electric wire 3 has been colored or not is judged according to the judging result of whether the coloring device 13 reaches the stop-moving position or not. When it is judged that the coloring is not finished ("N" in step S39), the process goes back to step S35, and a series of processes are repeated. When it is judged that the coloring is finished ("Y" in step S39), the process goes to step S40.
In step S40, whether the CPU 21 receives a request for coloring the next electric wire 3 or not is judged. When judged that the CPU 21 receives the request ("Y" in S40), the process goes back to step 31, and the series of processes are repeated. When judged that the CPU 21 does not receive the request ("N" in S40), the process goes to step S41. In step S41, whether the CPU 21 receives a termination request or not is judged. When judged that the CPU 21 does not receive the termination request ("N" in S4l), the process goes back to step S31, and the series of processes are repeated to color the next electric wire 3. When judged that the CPU 21 receives the termination request ("Y" in S41), the process ends.
Next, an embodiment of an operation (action) of the electric wire coloring apparatus 1 according to the present invention will be explained with reference to Fig. 8.
When receiving a product number of the electric wire 3 to be colored, the electric wire coloring apparatus 1 extracts the design pattern data corresponding to the product number. This design pattern data includes data corresponding to three coloring areas 3b. The start-coloring position data corresponding to the first coloring area 3b includes positions "LIl", "L13", "L15". The stop -coloring position data includes positions "L12", "L14", "L16". When the coloring device 13 reaches the first start-coloring position indicated by "LlI" of the coloring area 3b, the coloring unit 30 starts jetting the coloring material 7, and moved the coloring device 13 in a circular path one way, or round trip. Then, when the coloring device 13 reaches the stop-coloring position "L12", the coloring unit 30 stops jetting the coloring material 7, and stops moving the coloring device 13 in the circular path. Resultingly, the coloring material 7 jetted from the coloring nozzle 31 is attached to the whole circumference of the first coloring area 3b on the outer surface 3a of the electric wire 3.
Similarly, when the coloring device 13 reaches the second start-coloring position "L13", the coloring unit 30 starts jetting the coloring material 7, and moves the coloring device 13 in a circular path one way, or round trip. Then, when the coloring device 13 reaches the stop-coloring position "L14", the coloring unit 30 stops jetting the coloring material 7, and stops moving the coloring device 13 in the circular path. Then, when the coloring device 13 reaches the third start-coloring position "L15", the coloring unit 30 starts jetting the coloring material 7, and moves the coloring device 13 in a circular path one way, or round trip. When the coloring device 13 reaches the stop-coloring position "L16", the coloring unit 30 stops jetting the coloring material 7, and stops moving the coloring device 13 in the circular path. Thus, the color bars 6 composed of three coloring area 3b are formed on the whole circumference of the outer surface 3a of the electric wire 3. When the transporting apparatus 10 transports the pegs 11 of the clamping rod to set the next electric wire 3, the processes are repeated to form the color bars 6 on the whole circumference of the outer surface 3a of the electric wire 3. According to the electric wire coloring apparatus 1 as described the above, the coloring nozzle 31 as the tip of the coloring device 13 which jets the coloring material 7 is reciprocated in a circular path perpendicular to the longitudinal direction "A" of the electric wire 3, and the coloring device 13 is only moved in the longitudinal direction "A" of the electric wire 3, so that the coloring material 7 is attached to the whole circumference of the coloring areas 3b. Therefore, without moving the coloring device 13 in the direction perpendicular to the electric wire 3, the color bars 6 are surely formed on the whole circumference of the outer surface 3a of the electric wire 3. Therefore, the color bars 6 can be recognized from every direction. Further, because the coloring devices 13 are moved only one longitudinal direction, the transporting device can be simplified and the cost of the transporting device can be reduced. Accordingly, the structure and the control of the electric wire coloring apparatus 1 can be simplified. Further, the electric wire 3 having the color bars 6 has better visibility and design sense than the electric wire 3 having one sided color areas on the outer surface 3a has. Further, because the color bars 6 for identifying the electric wire 3 are easily formed on the electric wire 3, the stock of the electric wires 3 corresponding to colors of the electric wires 3 can be reduced. Further, shelves for the electric wires can also be reduced corresponding to the reduction of the stock of the electric wires. Therefore, a space for processing the electric wires also can be reduced.
Because the coloring nozzle 31 of the coloring device 13 is moved on the circle of which center is located on a line perpendicular to the electric wire 3, the coloring material 7 is jetted over a wide range of the electric wire 3. Therefore, the color bars 6 are surely formed in whole circumference of the outer surface 3a of the electric wire 3, and the coloring apparatus 1 easily adapts to a change of size of the electric wire 3.
Because the anti- scattering member 71 prevents the coloring material 7 from scattering, a range of the reciprocating movement in a circular path of the coloring device 13 can be increased. Therefore, the color bars 6 are surely formed in whole circumference of the outer surface 3a of the electric wire 3, and the coloring apparatus 1 easily adapts to a change of size of the electric wire 3. Because the controlling device 21a controls the coloring device 13 to jet the coloring material only when the reciprocating device 18 reciprocates the coloring nozzle 31 of the coloring device 13, the control of the coloring apparatus 1 is further simplified, and discharge amount of the coloring material 7 is reduced.
Incidentally, in the best mode, the electric wire coloring apparatus 1 colors one electric wire 3. However, the present invention is not limited to this. Various embodiments can be used. For example, in a state that a plurality of electric wires 3 are arranged parallel in a direction "F" perpendicular to the longitudinal direction "A" of the electric wire 3, the coloring nozzle 31 is moved in a circular path around the center electric wire 3.
Further, in the best mode, the sliding member 14 moves the coloring device 13 and the oscillation member 18 in the longitudinal direction "A" of the electric wire 3. However, the transporting apparatus 10 may move the electric wire 3.
Although the present invention has been fully described by way of example with reference to the accompanying drawings, it is to be understood that various changes and modifications will be apparent to those skilled in the art. Therefore, unless otherwise such changes and modifications depart from the scope of the present invention hereinafter defined, they should be construed as being included therein.

Claims

1. An electric wire coloring apparatus for forming color bands on an outer surface of the electric wire by attaching coloring material on the outer surface of the electric wire, said apparatus comprising- a coloring device for jetting the coloring material toward the outer surface of the electric wire; a reciprocating device for reciprocating a tip of the coloring device, from which the coloring material is jetted, and moving the tip circularly in a direction crossing a longitudinal direction of the electric wire in a manner that each coloring material is attached to whole circumference of a coloring area corresponding to each color band; a transportation device for transporting either the coloring device and the reciprocating device or the electric wire in the longitudinal direction of the electric wire; and a controlling device for controlling a jet of the coloring material from the coloring device, and a reciprocation of the coloring device after the transporting device transports the coloring device to a position of the coloring area to which the coloring device attaches the coloring material.
2. The apparatus as claimed in claim 1, wherein the reciprocating device includes an air cylinder for moving the tip of the coloring device on a circle of which center is located on a line perpendicular to the electric wire.
3. The apparatus as claimed in claim 1 or 2, wherein the coloring device includes anti-scattering material for preventing the coloring material jetted to the electric wire from scattering.
4. The apparatus as claimed in any one of claims 1 to 3, wherein the controlling device controls the coloring device to jet the coloring material only when the reciprocating device reciprocates the tip of the coloring device.
PCT/JP2007/061399 2006-05-31 2007-05-30 Electric wire coloring apparatus WO2007142249A1 (en)

Priority Applications (3)

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CN2007800198294A CN101454845B (en) 2006-05-31 2007-05-30 Electric wire coloring apparatus
MX2008015035A MX2008015035A (en) 2006-05-31 2007-05-30 Electric wire coloring apparatus.
EP07744745A EP2022064A1 (en) 2006-05-31 2007-05-30 Electric wire coloring apparatus

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2006-151294 2006-05-31
JP2006151294A JP5028030B2 (en) 2006-05-31 2006-05-31 Electric wire coloring device

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CN (1) CN101454845B (en)
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Publication number Priority date Publication date Assignee Title
JP5833292B2 (en) * 2010-03-02 2015-12-16 矢崎総業株式会社 Wire Harness
CN109461363B (en) * 2017-09-06 2020-09-01 北京瑞阳伟业科技有限公司 Intelligent cable identification system

Citations (3)

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Publication number Priority date Publication date Assignee Title
US3903840A (en) * 1969-01-27 1975-09-09 Joseph C Gemelli Marking apparatus
US4387665A (en) * 1981-08-10 1983-06-14 Clinton Henry H Electronic band marking controller
EP0377449A2 (en) * 1989-01-04 1990-07-11 kabelmetal electro GmbH Method for marking elongate articles

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4477837B2 (en) * 2003-06-19 2010-06-09 矢崎総業株式会社 Electric wire coloring device
JP4486412B2 (en) * 2004-05-31 2010-06-23 矢崎総業株式会社 Electric wire coloring device and electric wire processing device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3903840A (en) * 1969-01-27 1975-09-09 Joseph C Gemelli Marking apparatus
US4387665A (en) * 1981-08-10 1983-06-14 Clinton Henry H Electronic band marking controller
EP0377449A2 (en) * 1989-01-04 1990-07-11 kabelmetal electro GmbH Method for marking elongate articles

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CN101454845A (en) 2009-06-10
JP5028030B2 (en) 2012-09-19
CN101454845B (en) 2011-06-08
JP2007323888A (en) 2007-12-13
EP2022064A1 (en) 2009-02-11
MX2008015035A (en) 2008-12-05

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