CN101500714A

CN101500714A - Coloring nozzle

Info

Publication number: CN101500714A
Application number: CNA2007800292046A
Authority: CN
Inventors: 镰田毅; 杉村惠吾
Original assignee: Yazaki Corp
Current assignee: Yazaki Corp
Priority date: 2006-08-08
Filing date: 2007-06-08
Publication date: 2009-08-05
Anticipated expiration: 2027-06-08
Also published as: MX2009001301A; CN101500714B; PT2049266E; EP2049266A1; WO2008018236A1; EP2049266B1; JP5101844B2; JP2008041486A

Abstract

A coloring nozzle for coloring an electric wire includes an insert member for containing coloring material, a nozzle element 54 connected to the insert member, and the like. The nozzle element 54 includes a first nozzle member 37 disposed at the insert member side, a second nozzle member 50 disposed at the electric wire side, and a connecting pipe 51 for connecting the first nozzle member 37 and the second nozzle member 50. The second nozzle member 50 includes a second large diameter part 151 disposed near the first nozzle member 37, and of which inner diameter is smaller than that of the first nozzle member 37; a small diameter part 152 disposed nearer the electric wire than the second large diameter part 151, and of which inner diameter is smaller than that of the second large diameter part 151; and a first large diameter part 153 disposed nearer the electric wire than the small diameter part 152, and of which inner diameter is larger than the small diameter part 152. An inside of the second nozzle member 50 is formed in a step shape.

Description

Coloring nozzle

Technical field

The present invention relates to a kind of coloring nozzle that is used for the object colouring such as the electric wire of insulating sheath with conductive core line and the described heart yearn of covering.

Background technology

Multiple electronic component is installed on the vehicle.Therefore, wire harness is arranged in the vehicle will also providing to electronic component from the control signal of computer from the electronic component that supplies power to of battery.Wire harness comprises many wires and the connector that is attached to wire end.

Described electric wire comprises conductive core line and covers the sheath of being made by insulating synthetic resin of described heart yearn.This electric wire is so-called plastic-coated line.Connector comprises terminal and receives the connector shell of described terminal.Described terminal is made by conductive metal sheet, and is connected to the end of described electric wire and is electrically connected to the heart yearn of electric wire.Connector shell is made by insulating synthetic resin, and is box-like.By connector shell is connected to electronic component so that electric wire is electrically connected to electronic component via terminal, wire harness is to electronic component supply predetermined electric power or signal.

When the assembling wire harness, at first, electric wire is cut into particular length, removes the sheath at wire end place, and subsequently terminal is attached to the end of electric wire.Then, in case of necessity, electric wire is connected to each other.Then, terminal is inserted in the connector shell.Thus, wire harness is assembled.

The purpose of each electric wire of the size of heart yearn, the material of sheath (for example, hear resistance) and online intrafascicular use should be distinguished to some extent.The purpose of using for example can be to transmit the control signal or the supply electric power of air bag, ABS (anti-lock braking system) or car speed.

Usually, be used for the electric wire of wire harness, by synthetic resin is squeezed to make sheath on the heart yearn before, the colouring material with predetermined color mixes with synthetic resin, thereby makes sheath have predetermined color (referring to patent document 1 to 3).In this case, the extruder that must make extruding make sheath before the outer surface that changes electric wire stops.In this case, when changing the color of electric wire, extruder all will stop at every turn.Therefore, time and the workload of making electric wire increase, and productive rate reduces.

Alternatively, in extruder extruding sheath, change and treat the colouring material that mixes with synthetic resin.In this case, just after the color that changes the material of painting, the color of synthetic resin is the mixing that changes color before and change color afterwards.Thus, the lumber recovery of electric wire reduces.

For the reduction that prevents the electric wire productive rate and the reduction of electric wire lumber recovery, applicant of the present invention proposes after making monochromatic electric wire, with predetermined color colouring, and subsequently wire harness is assembled (seeing patent document 4) on the outer surface of electric wire.The applicant has further proposed a kind of electric wire coloring means, wherein when monochromatic electric wire is painted, with the outer surface of the liquid state of specified quantitative colouring injection of material to electric wire, thus by the drop that makes the colouring material be attached to electric wire outer surface and with predetermined color to electric wire colouring (referring to patent document 5).Fig. 9 and Figure 10 show the sectional view of major part of the coloring nozzle of coloring means.

As Fig. 9 and shown in Figure 10, coloring nozzle 254 forms cylindric, and comprises: first nozzle arrangement 237, and its material of will painting pours into to internal flow path 237A; Second nozzle arrangement 250, it is set to compare first nozzle arrangement, 237 more close electric wires; And tube connector, it connects first nozzle arrangement 237 and second nozzle arrangement 250.The internal diameter of the stream 250A of second nozzle arrangement 250 (about 100 microns) is less than the internal diameter of the stream 237A of first nozzle arrangement 237.Further, coloring nozzle 254 is approximately 0.5 micron along the length of its longitudinal direction.Thus, when the colouring material when stream 237A moves to stream 250A, the flowing velocity of colouring material increases.Therefore, the emitted dose of colouring material is adjustable, and the definition of the liquid droplets of colouring material increases.

Patent document 1: Japanese Laid-Open Patent Application No.Hei5-111947

Patent document 2: Japanese Laid-Open Patent Application No.Hei6-119833

Patent document 3: Japanese Laid-Open Patent Application No.Hei9-92056

Patent document 4: international patent application No.WO03/019580

Patent document 5: Japanese patent application No.2005-019081

Summary of the invention

Treat problem by the present invention's solution

Yet the coloring nozzle 254 of conventional coloring means has following problem.As mentioned above, coloring nozzle 254 forms when colouring material flow velocity when stream 237A flows to stream 250A and increases.When coloring means stops to spray, promptly when the valve that the colouring material is sent to first nozzle arrangement 237 cuts out, have the colouring material of pushing the speed and penetrate (referring to Fig. 9) from coloring nozzle 254, thereby bubble enters stream 237A, the 250A interior (referring to Figure 10) of coloring nozzle 254 owing to inertia.

Because the bubble in stream 237A, the 250A, even when coloring means does not have injection signal, the colouring material also can be from coloring nozzle 254 drippages.Further, because bubble, thereby the colouring material in the coloring nozzle 254 is dried and solidifies and may stop up coloring nozzle 254.Further, be attached to top end face 250b, make the injection direction instability of colouring material near electric wire from the colouring material of coloring nozzle 254 drippage.

Therefore, the purpose of this invention is to provide a kind of coloring nozzle, when it stops to spray the colouring material in coloring means, enter the material drippage that prevents to paint in the stream of coloring nozzle, stop up coloring nozzle by preventing bubble, and make the injection direction instability.

The method of dealing with problems

In order to realize this purpose, according to claim 1, provide a kind of coloring nozzle at this, the liquid state colouring material of specified quantitative is injected into the outer surface of object through described coloring nozzle, thereby the outer surface that is attached to described object by the drop that makes described colouring material is given described object colouring, and described coloring nozzle comprises: be used to hold described colouring container of material; First nozzle arrangement, it forms cylindric, and described colouring material is mobile within it, and described first nozzle arrangement is communicated with described container; And second nozzle arrangement, it forms cylindric, and described colouring material flows within it, described second nozzle arrangement is than the more close described object setting of described first nozzle arrangement, and be connected to described first nozzle arrangement, wherein, described second nozzle arrangement comprises: minor diameter, and its internal diameter is less than the internal diameter of described first nozzle arrangement; And first diameter portion, described first diameter portion is than the more close described object setting of described minor diameter, and the internal diameter of described first diameter portion is greater than the internal diameter of described minor diameter.

According to claim 2, a kind of coloring nozzle as claimed in claim 1 is provided, wherein, described second nozzle arrangement is than the more close described first nozzle arrangement setting of described minor diameter, and further comprise second largest diameter portion, the internal diameter of described second largest diameter portion is greater than the internal diameter of described minor diameter but less than the internal diameter of described first nozzle arrangement.

In addition, in this manual, the colouring material is meant liquid, wherein goes up toner (organic substance that uses in the industry) and dissolves and be dispersed in water or other solvent.Organic substance is dyestuff or pigment (wherein most of is organic substance and synthetic).Sometimes, dyestuff is as pigment, and pigment is as dyestuff.As example more specifically, the colouring material in this specification is colouring liquid or coating material.Colouring liquid is a kind of like this liquid, and wherein: dyestuff dissolves or is dispersed in the solvent.Coating material is a kind of like this material, and wherein: pigment is dispersed in the liquid dispersant.

When on the colouring outer surface of liquid deposition at object, last toner infiltrates in the object.When coating material was deposited on the outer surface of object, the pigment deposition infiltrated in the object on the outer surface and not.That is, " to the outer surface colouring of object " expression applies to the part outer surface dyeing of object or with the part outer surface of pigment to object with dyestuff.

Preferably, in order to infiltrate into dyestuff in the object reliably or pigment to be deposited on the outer surface of object reliably, the synthetic resin of solvent and liquid dispersant and formation object has affinity.

The invention effect

According to the present invention as claimed in claim 1, when spraying the colouring material, the minor diameter that moves to second nozzle arrangement from first nozzle arrangement by the material of will painting increases the speed of colouring material, and the colouring material ejects from the end wall of the close described object of minor diameter.Therefore, the emitted dose of colouring material can be regulated, and the definition of the liquid droplets of colouring material increases.Further, when stopping to spray the colouring material, move to the first diameter portion of second nozzle arrangement owing to inertia at the colouring material of minor diameter medium velocity increase.When the colouring material when minor diameter moves to first diameter portion, the speed of colouring material reduces, thereby the colouring material can not spray from coloring nozzle, and the colouring material stops, thereby the liquid surface of colouring material is deposited on the same surface of end wall of close object of first diameter portion.Then, atmospheric pressure is back in the coloring nozzle colouring material, and the liquid surface of colouring material is arranged on the same surface of end wall of the close object of minor diameter.Therefore, prevent that bubble from entering the stream of coloring nozzle, and therefore, a kind of material drippage that can prevent to paint can be provided, stop up coloring nozzle, and the unsettled coloring nozzle of injection direction.Further, because prevented the obstruction of nozzle,, thereby can reduce the consumption of colouring material before the colouring material begins to spray so the pilot injection of the material of painting traditionally is unnecessary.

According to claim 2 of the present invention because second largest diameter portion is between the minor diameter of first nozzle arrangement and second nozzle arrangement, so from first nozzle arrangement to minor diameter, internal diameter reduces gradually.Therefore, can regulate subtly flow velocity through the colouring material of these streams.

Description of drawings

Fig. 1 shows the schematic side view that has according to the structure of the electric wire coloring means of the coloring nozzle of embodiment of the present invention.

Fig. 2 is the sectional view of the last color element of the electric wire coloring means dissectd of the line II-II along Fig. 1.

Fig. 3 shows the key diagram of position relation between the coloring nozzle of the last color element shown in Fig. 2 and the electric wire.

Fig. 4 shows the sectional view of structure of nozzle unit of the coloring nozzle of the last color element shown in Fig. 2.

(a) among Fig. 5 shows the stereogram by the electric wire of the electric wire coloring means shown in Fig. 1 colouring, and (b) among Fig. 5 is the plane of the electric wire that illustrates of Fig. 5 (a).

Fig. 6 shows the amplification sectional view of the major part of the coloring nozzle shown in Fig. 4.

Fig. 7 shows the sectional view of the colouring material when the coloring nozzle shown in Fig. 6 stops to spray the colouring material.

Fig. 8 shows when coloring nozzle still stops to spray the sectional view that is pushed back the colouring material to the coloring nozzle from the state shown in Fig. 7.

Fig. 9 shows the sectional view of colouring material when conventional coloring nozzle stops to spray the colouring material.

Figure 10 shows the sectional view of the bubble in the stream that enters the conventionally chromatic nozzle shown in Fig. 9.

The explanation of letter or number

3 electric wires (object)

The outer surface of 3a electric wire

31 coloring nozzles

35 insert member (container)

37 first nozzle arrangements

50 second nozzle arrangements

151 second largest diameter portion

152 minor diameter

153 first diameter portion

The specific embodiment

Below with reference to Fig. 1 to Fig. 8 the coloring nozzle 31 according to embodiment of the present invention is made an explanation.Coloring nozzle 31 shown in Fig. 3 and Fig. 4 is installed in being configured on the electric wire coloring means 1 of painting as the electric wire 3 of object shown in Fig. 1.Coloring means 1 is cut into particular length with electric wire 3, and forms mark 6 on a part of outer surface 3a of electric wire 3.That is, 1 pair of outer surface 3a colouring as the electric wire 3 of object of coloring means also promptly applies mark.

Formed as the electric wire 3 of object and to be configured to be arranged on as wire harness in the vehicle of mobile body.Shown in Fig. 5 (a), electric wire 3 comprises conductive core line 4 and insulating sheath 5.Heart yearn 4 forms by twining many these electric wires of foundation.Basic electric wire is made by conducting metal.Heart yearn 4 can be made up of single basic electric wire.Sheath 5 is made by the synthetic resin such as polyvinyl chloride (PVC).Sheath 5 covers heart yearn 4.Therefore, the outer surface 3a of electric wire 3 is outer surfaces of sheath 5.

Sheath 5 is single color P.The colouring material of expectation can mix with the synthetic resin of sheath 5, so that the color of the outer surface 3a of electric wire 3 is made single color P, perhaps alternatively, single color P can be set at the color of synthetic resin itself, and the material of will not painting is added into the synthetic resin of sheath 5.When latter event, the outer surface 3a of electric wire 3 is not painted, and promptly sheath 5 is not painted.The outer surface 3a of electric wire 3 is not painted, or has the single color such as white.

The mark of being made up of a plurality of spots 76 is formed on the outer surface 3a of electric wire 3.Spot 7 has the color B (being represented by parallel oblique line) that is different from single color P in Fig. 5.Spot 7 is circular in plane as shown in Figure 5.A plurality of spots 7 are according to the longitudinal direction setting of predetermined pattern along electric wire 3.Distance between the center of the spot 7 of setting adjacent one another are is scheduled to.

Many group electric wires 3 stop up, and connector then is attached to the respective end of electric wire 3, constitutes wire harness thus.The corresponding matching connector of the various electronic components in connector and the vehicle etc. is coupled, thereby the electric wire of wire harness 3 is sent to electronic component with various signals and electric power.

The color B of each spot 7 by changing mark 6 can be distinguished from each other out electric wire 3.In the accompanying drawings, as an example, it is the same that the color B of institute's spottiness 7 of electric wire 3 is set at, yet the color B of corresponding spot 7 can change as required.Color B is used for distinguishing the type of the electric wire 3 of wire harness or electrical wiring system.That is, color B is used for distinguishing type or its application target of the electric wire 3 of wire harness.

As shown in Figure 1, coloring means 1 comprises framework 10, guide reel 11, a pair of delivery roll 12, stretching unit 13, relaxation absorption unit 14, goes up color element 15, pipeline 16, encoder 17, cutting machine 18 and controller 19.

Framework 10 is installed on the ground of factory for example, and horizontal-extending.Guide reel 11 rotatably is installed on the end of framework 10.There is not the continuous electric wire 3 of mark 6 to be wrapped on the guide reel 11.Guide reel 11 is sent to electric wire 3 successively stretching unit 13, relaxation absorption unit 14, goes up color element 15, pipeline 16, encoder 17 and cutting machine 18.

Paired delivery roll 12 is installed on the other end of framework 10.Paired delivery roll 12 is rotatably supported by framework 10, and arranges vertically.Delivery roll 12 rotates identical revolution by for example motor (not shown) along opposite directions.Paired delivery roll 12 receives electric wire 3, and pulls electric wire 3 along the longitudinal direction of electric wire 3 from guide reel 11.

Delivery roll 12 transmits electric wire 3 along the longitudinal direction of electric wire 3, thereby electric wire is moved with respect to the coloring nozzle 31 of the last color element 15 that will be described later in a longitudinal direction.Therefore, electric wire 3 is sent to delivery roll 12 along the arrow K among Fig. 1 from guide reel 11.Arrow K represents the direction of transfer of electric wire 3.

On the direction of transfer K of electric wire 3, stretching unit 13 is arranged at the downstream of guide reel 11, the upstream of delivery roll 12.Stretching unit 13 comprises the tabular cell body 20 that is fixed to framework 10, a plurality of first roller 21 and a plurality of second roller 22.

First roller 21 and second roller 22 are rotatably supported by cell body 20 respectively.A plurality of first rollers 21 flatly (on direction of transfer K) are arranged in the top of electric wire 3.A plurality of second rollers 22 flatly (on direction of transfer K) are arranged in the below of electric wire 3.As shown in Figure 1, first roller 21 and second roller 22 are provided with in staggered mode.

Stretching unit 13 will be placed on by the electric wire 3 that delivery roll 12 transmits from guide reel 11 between first roller 21 and second roller 22 and electric wire 3 is stretching.Further, stretching unit 13 is by electric wire 3 being placed between first roller 21 and second roller 22 and provide frictional force to electric wire 3.That is, stretching unit 13 provides along putting on the first active force H1 of the opposite direction of the direction (direction of transfer K) of the drag force on the electric wire 3 with delivery roll 12 to electric wire 3.The described first active force H1 puts on the drag force of electric wire 3 less than delivery roll 12.Therefore, stretching unit 13 is along the longitudinal direction tension electric wire 3 of electric wire 3.

On the direction of transfer K of electric wire 3, relaxation absorption unit 14 is arranged at the downstream of stretching unit 13, the upstream of delivery roll 12.Relaxation absorption unit 13 be arranged on stretching unit 13 and the coloring nozzle 31 of the last color element 15 that will be described later between.

As shown in Figure 1, relaxation absorption unit 14 comprises: be used to support to a pair of support frame 23 of right guide reel 24, described support frame 23 is fixed on the framework 10, and exists certain interval ground to be provided with along the direction of transfer K of electric wire 3; A pair of guide reel 24, it is rotatably supported by support frame 23; Be used to support the support frame 25 of removable roller 26, it is fixed to framework 10 and between paired support frame 23; And removable roller 26, it is between described guide reel 24.

Guide reel 24 is arranged on the below of electric wire 3 and guides electric wire 3, and the periphery wall by guide reel 24 contacts with electric wire 3, avoids making electric wire 3 to depart from direction of transfer K.Thus, guide reel 24 is along direction of transfer K guiding electric wire 3.

Removable roller 26 is rotatably supported by the support frame 25 of removable roller 26, and can move along the vertical direction of support frame 25.Removable roller 26 is arranged on the top of electric wire 3.Removable roller 26 is supported in the mode that can vertically move, and is promptly supported in the mode that can move along the direction perpendicular to the direction of transfer K of electric wire 3.

Cylinder 27 comprises: cylinder block 28, and it is fixed on the support frame 25 of removable roller 26, and is arranged on the top of electric wire 3; And tensile bar 29, it can stretch out from cylinder block 28.Tensile bar 29 can extend to electric wire 3 from cylinder block 28.Removable roller 26 is attached to tensile bar 29.By to the inside of cylinder block 28 compressed gas supplying, cylinder 27 is by perpendicular to the second active force H2 that is directed downwards of direction of transfer K (shown in Fig. 1) the tensile bar 29 of actuating, promptly removable roller 26.The second active force H2 is less than the first active force H1.

When delivery roll 12 temporarily stops to transmit electric wire 3, when cutting electric wires 3 with the cutting blade a pair of close to each other that will be described later 48,49 by cutting machine 18, electric wire 3 still transmits along arrow K owing to inertia force, thereby electric wire 3 is lax between paired guide reel 24.At this moment, in having the relaxation absorption unit 14 of said structure, because cylinder 27 activates removable roller 26 by the second active force H2, tensile bar 29 elongations of cylinder 27 and removable roller 26 is moved to the position shown in the double dot dash line among Fig. 1 for example.Like this, relaxation absorption unit 14 along perpendicular to the directive effect of direction of transfer K in lax electric wire 3 between paired guide reel 24 as previously mentioned, and absorb lax so that electric wire 3 keeps tensionings.

On the direction of transfer K of electric wire 3, last color element 15 is arranged on the downstream of relaxation absorption unit 14, the upstream of delivery roll 12.Therefore, last color element 15 is that coloring nozzle 31 described later is arranged between paired delivery roll 12 and the stretching unit 13.

As shown in Figure 2, last color element 15 comprises the cell body 30 that is fixed to framework 10, and a plurality of coloring nozzles 31 that supported by cell body 30.Coloring nozzle 31 with said structure sprays to the outer surface 3a of electric wire 3 with scheduled volume from the liquid state colouring material of colouring material source 32, with at least a portion colouring (or marking) to the outer surface 3a of electric wire 3.The detailed structure of described coloring nozzle 31 will be described hereinafter.

Described a plurality of coloring nozzle 31 is arranged along the direction of transfer K of electric wire 3.As shown in Figure 1, five of cell body 30 coloring nozzles 31 are arranged along the direction of transfer K of electric wire 3.As shown in Figure 3, each coloring nozzle 31 remains on following state by cell body 30: the topmost 3b of electric wire 3 is arranged on the extension line (Fig. 3 is shown in dotted line with the length that replaces) of axis R of first nozzle arrangement 37 that will be described later.Each coloring nozzle 31 sprays the colouring material along axis R.That is, each coloring nozzle 31 is with the colouring injection of material of the specified quantitative topmost 3b to electric wire 3.

In this manual, use viscosity to be equal to or less than the colouring material of 10 milli pascal seconds (mPa*s).The colouring material is represented a kind of liquid substance, and the material of wherein painting (organic substance that uses in the industry) dissolves and is dispersed in water or other solvents.Above-mentioned organic substance is dyestuff or pigment (major part is organic substance and synthetic).Sometimes, dyestuff is as pigment, and pigment is as dyestuff.As example more specifically, the colouring material is colouring liquid or coating material.Colouring liquid is dyestuff dissolving or is dispersed in liquid in the solvent.Coating material is that pigment is dispersed in the material in the liquid dispersant.When on the colouring outer surface 3a of liquid deposition at electric wire 3, dyestuff penetration is to coating 5.When the outer surface 3a that is deposited on electric wire 3 when coating material went up, pigment was deposited on the outer surface 3a, and does not infiltrate in the coating 5.Therefore, " to the outer surface 3a of electric wire 3 colouring " expression with dyestuff to the part colouring of the outer surface 3a of electric wire 3 or with the part of the outer surface 3a of pigment coated wire 3.Preferably, the synthetic resin of solvent and liquid dispersant and formation coating 5 has affinity, so that dyestuff infiltrates in the coating 5 reliably or allow pigment to be arranged on reliably on the outer surface 3a.The liquid state colouring material of above-mentioned " injection " expression drop state sprays to the outer surface 3a of electric wire 3 powerfully from coloring nozzle 31.

On the direction of transfer K of electric wire 3, pipeline 16 is arranged at the downstream of color element 15, the upstream of delivery roll 12.Pipeline 16 has the shape of cylinder, and electric wire 3 passes pipeline 16.Unshowned air-breathing member such as vavuum pump is connected to pipeline 16.Gas in the air-breathing member suction channel 16 is to prevent the paint solvent of material or the outside that liquid dispersant is filled coloring means 1.

On the direction of transfer K of electric wire 3, encoder 17 is arranged at the downstream of delivery roll 12.As shown in Figure 1, encoder 17 comprises a pair of rotor 47.Rotor 47 is supported in the mode that can rotate around the axis of rotor 47.The outer surface 3a of the outer peripheral face trolley wire 3 of rotor 47, described outer surface 3a remains between the paired delivery roll 12.When heart yearn 4 is an electric wire 3 along arrow K forward the time, rotor 47 rotations.Electric wire 3 is directly proportional with the revolution of rotor 47 along the transmission length of arrow K.

Encoder 17 is connected to controller 19.When rotor 47 rotation special angles, encoder 17 is to controller 19 output pulse signals.That is, encoder 17 is measured and the transmission length corresponding data of electric wire 3 along arrow K, and to controller 19 these data of output.Therefore, encoder 17 measurements are corresponding to the data of the transmission length of electric wire 3 and to the pulse signal of controller 19 outputs corresponding to the transmission length of electric wire 3.Usually, encoder 17 is exported pulse signal corresponding to the transmission length of electric wire 3 by the friction between electric wire 3 and the rotor 47.Yet, when the transmission length of electric wire 3 because the situation of the outer surface 3a of electric wire 3 and with umber of pulse when inconsistent, the angular movement speed data of electric wire 3 can be obtained by the another kind of mode that is used to feed back, and perhaps carries out operation relatively.

On the direction of transfer K of electric wire 3, cutting machine 18 is arranged at the downstream of the paired rotor 47 of encoder 17.Cutting machine 18 comprises paired cutting blade 48,49.Paired cutting

blade

48,49 is vertically arranged.The attached vertically simultaneously each other and separation of paired cutting blade 48,49.When close to each other, cutting

blade

48,49 will be clipped between the

blade

48,49 and cutting by the electric wire 3 that delivery roll 12 transmits in pairs.Then, paired cutting

blade

48,49 is separated from one another and separate with electric wire 3.

Controller 19 is the computers that comprise known ROM, RAM, CPU etc.Controller 19 is connected to delivery roll 12, encoder 17, cutting machine 18, coloring nozzle 31, or the like, and go up color element 15.By controlling these devices, the whole coloring means 1 of controller 19 controls.

The predetermined pattern of controller 19 storage marks 6.When specific pulse signal promptly corresponding to the data of the transmission length of electric wire 3 during from encoder 17 inputs, controller 19 at interval applies voltage to the coil 40 of predetermined coloring nozzle 31 with preset time, so that coloring nozzle 31 is ejected to the colouring material of specified quantitative on the electric wire 3.According to the predetermined pattern of the mark of being stored 6, when the transfer rate of electric wire 3 accelerated, controller 19 shortened the interval of hydrojet, and when the transfer rate of electric wire 3 is slack-off, makes this interval elongated.Therefore, controller 10 is painted to electric wire 3 according to the predetermined pattern of being stored.Further, when controller 19 had moved predetermined length based on the data judgement electric wire 3 from encoder 17, controller 19 stopped delivery roll 12 and makes paired cutting

blade

48,49 close to each other and cutting electric wires 3.Further, the cleaning section that will be described later 64 of controller 19 control coloring nozzles 31 (described cleaning section 64 is not painted to the outer surface 3a of the electric wire between coloring nozzle 31 3) is so that cleaning section 64 cleans every the nozzle member 54 of specified time interval to coloring nozzle 31.

Next, will make an explanation in more detail to coloring nozzle 31.As shown in figures 1 and 3, coloring nozzle 31 comprises nozzle unit 52, colouring material feeding unit 53 and cleaning section 64.As shown in Figure 4, the nozzle unit 52 insertion member 35, inlet tube 36, nozzle member 54, valve system 38 and the nozzle cover 55 that comprise columniform nozzle body 34, receive by nozzle body 34.

Inserting member 35 forms cylindric.In inserting member 35, form the runner 39 of keeping supplying look material process.Runner 39 is filled with the colouring material by colouring material source 32 supplies described later.Inserting member 35 is the receivers that are used to receive the liquid state colouring material of describing in this manual.Inlet tube 36 is communicated with runner 39, and the material of will painting guides in the runner 39 from colouring material source 32.

As shown in Figure 6, nozzle member 54 comprises first nozzle arrangement 37, second nozzle arrangement 50 and tube connector 51.First nozzle arrangement 37 forms cylindric, and is communicated with runner 39.First nozzle arrangement 37 guides to the colouring material in the runner 39 outside of coloring nozzle 31.The internal diameter of first nozzle arrangement 37 also is the external diameter of runner 39 less than the internal diameter of nozzle body 34.First nozzle arrangement 37 is coaxial with nozzle body 34.First nozzle arrangement 37 is made by stainless steel.

Second nozzle arrangement 50 is compared first nozzle arrangement 37 will more close electric wire 3, and forms cylindric.Second nozzle arrangement 50 is made by polyether-ether-ketone (hereinafter referred to as " PEKK ").The external diameter of second nozzle arrangement 50 equals the external diameter of first nozzle arrangement 37.Thus, nozzle member 54 forms colouring materials its inboard tubulose of flowing through, and with insert member 35 and be communicated with.

Further, second nozzle arrangement 50 comprises: internal diameter is less than the second largest diameter portion 151 of first nozzle arrangement 37; Internal diameter is less than the minor diameter 152 of second largest diameter portion 151, and it compares second largest diameter portion 151 more close electric wire 3 ground settings; And internal diameter is greater than the first diameter portion 153 of minor diameter 152, and it compares minor diameter 152 more close electric wire 3 ground settings.As shown in Figure 6, the inwall of second nozzle arrangement 50 forms stepped.Therefore, the end wall 50a near first nozzle arrangement 37 of second nozzle arrangement 50 is outstanding towards the inside of first nozzle arrangement 37 from the inwall of first nozzle arrangement 37.Further, in the present embodiment, the internal diameter of minor diameter 152 is 90 microns, and the internal diameter of second largest diameter portion 151 and first diameter portion 153 is 125 microns.Further, minor diameter 152, second largest diameter portion 151 and first diameter portion 153 are 0.5 micron along the length of the longitudinal direction of nozzle member 54.Second nozzle arrangement 50 and first nozzle arrangement 37 are coaxial, and are connected to first nozzle arrangement 37.

Be provided with fluid-tight seal between first nozzle arrangement 37 and second nozzle arrangement 50.The colouring material is along the longitudinal direction of first nozzle arrangement of being represented by arrow Q 37 flow through first nozzle arrangement 37 and second nozzle arrangement 50.That is, minor diameter 152, second largest diameter portion 151 and first diameter portion 153 constitute the runner of second nozzle arrangement 50.Arrow Q shows the flow direction of colouring material.

Tube connector 51 forms cylindric, and is made by synthetic resin.The internal diameter of tube connector 51 equals the external diameter of first nozzle arrangement 37 and second nozzle arrangement 50 substantially.Tube connector 51 is installed on the outer wall of first nozzle arrangement 37 and second nozzle arrangement 50, and connects first nozzle arrangement 37 and second nozzle arrangement 50.Further, tube connector 51 can make second nozzle arrangement 50 separate with first nozzle arrangement 37.

Valve system 38 comprises coil 40, valve body 41 and helical spring 42.Coil 40 is formed on runner 39 outside also embeddings and inserts in the member 35.Electric current is applied to coil 40 from the outside.Valve body 41 comprises conductive bodies 43 and valve 44.Main body 43 comprises the cylinder 45 of one and extends to the plate-like portion 46 of cylinder 45 ends.

The plate-like portion 46 of main body 43 is towards the base end 37a of first nozzle arrangement 37.Main body 43 is received in the runner 39 under the longitudinal direction of cylinder 45 is parallel to the state of longitudinal direction of nozzle body 34.Main body 43 is a valve body 41 can being that the mode that the longitudinal direction of nozzle body 34 moves forms along the longitudinal direction of cylinder 45.

Valve 44 is attached to the plate-like portion 46 of main body 43.That is, valve 44 is received in and inserts in the member 35.Valve element 44 is towards the base end 37a of first nozzle arrangement 37.Because valve 44 is attached to the plate-like portion 46 of main body 43, so valve 44 can be attached to the base end 37a of first nozzle arrangement 37 or separate with it.

Therefore, valve element 44 can be in as Fig. 4 be attached to base end 37a between the closing position shown in the solid line among the open position shown in the double dot dash line and Fig. 4 or separates with it.At open position, valve 44 separates with base end 37a, and the nozzle arrangement 37 and second nozzle arrangement 50 are to spray to the outer surface 3a of electric wire 3 thereby the colouring material can be flowed through.In closing position, valve 44 is attached to base end 37a, and nozzle arrangement 37 sprays to the outer surface 3a of electric wire 3 thereby the colouring material can not be flowed through.Thus, valve 44 is attached to base end 37a or separates with it and to control the injection of colouring material from nozzle member 54.

Helical spring 42 is attached to the directive effect of base end 37a of first nozzle arrangement 37 in plate-like portion 46 along valve 44.

Nozzle cover 55 comprises: lid body 56, and its external diameter axially is constant along it, and its internal diameter progressively changes; And nozzle fixed component 57.Lid body 56 is attached to cell body 30.Lid body 56 fanging noz(zle) unit 52, make: the nozzle body 34 of nozzle unit 52 is installed on the stage portion 59, and the inlet tube 36 of nozzle unit 52 is positioned the top, and

nozzle arrangement

37,50 is positioned the below.

In lid body 56, sealing ring 60 is installed between the nozzle body 34 of stage portion 59 and nozzle unit 52, is used to keep it waterproof.At lid body 56 and nozzle arrangement 37,51 is to form space 61 between the nozzle member 54.The below in space 61 is opened wide.Therefore, nozzle cover 55 allows to be deposited on the electric wire 3 through the colouring material that nozzle member 54 sprays.The end wall 56a towards electric wire 3 of lid body 56 is provided with than the more close electric wire 3 of the top end wall 50b towards electric wire 3 of second nozzle arrangement 50.

As shown in Figure 2, nozzle fixed component 57 is installed in to cover on the body 56 and nozzle unit 52 is fixed to and covers body 56.Nozzle fixed component 57 will cover body 56 and nozzle unit 52 is coaxially fixing.

As shown in Figures 2 and 3, colouring material feeding unit 53 comprises a plurality of colouring material sources 32 as colouring liquid delivery member.Each material source 32 of painting is the receivers that are used to receive the colouring material, and the material of will painting is supplied to the inlet tube 36 of coloring nozzle 31.Each material source 32 of painting is corresponding to each coloring nozzle 31.The color B that is supplied to the colouring material of coloring nozzle 31 respectively paints can be similar and different between the material source 32.Gas-pressurized from pressurized-gas source 33 described later is supplied to colouring material source 32.

As shown in Figure 3, cleaning section 64 comprises clean liquid supply department 65 and clean liquid discharge portion 66.Clean liquid supply department 65 comprises first container 67, pressurized air source 33, first pipeline 68 and first valve 69.

First container 67 is the receivers that are used to receive clean liquid, and clean liquid is supplied in the lid body 56 and the space 61 between the nozzle member 54 of nozzle cover 55, promptly is supplied in the nozzle cover 55.First container 67 can be installed respectively corresponding to each coloring nozzle 31, or only installs one to be used for all coloring nozzles 31.Clean liquid is represented the liquid substance such as solvent or dispersing liquid, and the organic substance of wherein industrial formation colouring material can dissolve or be dispersed in these liquids.Preferably, clean liquid is non-volatile when room temperature.

Pressurized-gas source 33 is supplied to respectively the paint material source 32 and first container 67 with gas-pressurized.Thereby, 33 pairs of pressurized-gas sources be received in the colouring material source 32 and the colouring material in the insertion member 35 of coloring nozzle 31 and be received in first container 67 and coloring nozzle 31 in space 61 in clean liquid pressurize.

Because 33 pairs of pressurized-gas sources are received in the colouring material pressurization in the colouring material source 32 and in the insertion member 35 of coloring nozzle 31, so when the valve 44 of one of them coloring nozzle 31 separated with the base end 37a of first nozzle arrangement 37, the colouring material that is received in the runner 39 sprayed through first nozzle arrangement 37 and second nozzle arrangement 50 rapidly.

First pipeline 68 is connected to first container 67 with pressurized air source 33, and with space 61 be the internal communication of nozzle cover 55.It is in the nozzle cover 55 that first pipeline 68 guides to space 61 with the colouring liquid in first container 67.

First valve 69 is installed on first pipeline 68 between the nozzle cover 55 of first container 67 and coloring nozzle 31.When first valve 69 was opened, it was in the nozzle cover 55 that clean liquid is supplied to space 61 from first container 67.When first valve, 69 closures, it is in the nozzle cover 55 that clean liquid stops to be supplied to space 61 from first container 67.By above-mentioned structure, clean liquid supply department 65 is supplied to clean liquid in the nozzle cover 55 from first container 67.

As shown in Figure 3, clean liquid discharge portion 66 comprises second container 70, aspirator 71, second pipeline 72 and second valve 73.

It is the clean liquids of discharging in the nozzle cover 55 that second container 70 receives from the space 61.Second container 70 can be for a plurality of and be attached to each coloring nozzle 31 respectively, or only has one and be attached to described a plurality of coloring nozzle 31.

Aspirator 71 is made by the device such as vavuum pump or vacuum generator, and the gas in sucking-off second container 70.Aspirator 71 is inhaled the clean liquid in the nozzle cover 55 to second container 70 by the gas in sucking-off second container 70.

Second pipeline 72 connects the aspirator 71 and second containers 70, and with are communicated with in space 61 is nozzle cover 55.Second pipeline 72 is that nozzle cover 55 interior clean liquids guide to second container 70 with space 61.

Second valve 73 is installed on second pipeline 72 between the nozzle cover 55 of second container 70 and each coloring nozzle 31.When second valve 73 was opened, second valve 73 was that nozzle cover 55 interior clean liquids guide to second container 70 with space 61.When second valve, 73 closures, it is to guide to second container 70 in the nozzle cover 55 that clean liquid stops from space 61.By above-mentioned structure, clean liquid discharge portion 66 is the outside that nozzle cover 55 interior clean liquids are disposed to nozzle cover 55 with space 61.Cleaning section 64 cleans the end of the close electric wire 3 of nozzle member 54 by clean liquid being supplied in the nozzle cover 55 and at least.

Coloring nozzle 31 with said structure guides to runner 39 through inlet tubes 36 material of will paint from the material source 32 of painting.Further, by the active force of helical spring 42, not to coil 40 energisings the time, the base end 37a of valve 44 contacts first nozzle arrangement 37 is limited in the runner 39 with the material of will painting.When according to the instruction that comes self-controller 19 the outer surface 3a of electric wire 3 being painted, the function of current is in coil 40, and the valve 44 that is attached to plate-like portion 46 overcomes the active force of helical spring 42 and separates with the base end 37a of first nozzle arrangement 37.Then, be stored in colouring material in the runner 39 along the flow through inside of first nozzle arrangement 37 and second nozzle arrangement 50 of arrow Q.Then, coloring nozzle 31 sprays the colouring material from second nozzle arrangement 50.

When spraying the colouring material, partly collide the end wall 50a of second nozzle arrangement 50 along the flow through colouring material of first nozzle arrangement 37 and second nozzle arrangement 50 of axis R and arrow Q.Then, stir the colouring material with the part colouring material production eddy current of end wall 50a collision.Therefore, the colouring concentration of material keeps evenly in the inside of whole second nozzle arrangement 50.

Further, because the cross-sectional area of runner reduces gradually, when spraying the colouring material, when the colouring material flowed to the second largest diameter portion 151 of second nozzle arrangement 50 in first nozzle arrangement 37, the flowing velocity of colouring material that flows to the minor diameter 152 of second nozzle arrangement 50 from first nozzle arrangement 37 increased.When the colouring material when second largest diameter portion 151 flows to minor diameter 152, flowing velocity further increases.Then, has the outer surface 3a that is injected into electric wire 3 than the liquid state colouring material of big flowing velocity from the end wall 50c of the minor diameter 152 of close electric wire 3.Thus, by reducing from the cross-sectional area of the runner of the minor diameter 152 of first nozzle arrangement, 37 to second nozzle arrangements 50, the flowing velocity of colouring material is adjustable to the optimum value of injection, and can regulate the emitted dose of colouring material.Further, because flow velocity increases, so the definition of the liquid droplets of colouring material increases.

In addition, when the outer surface 3a to electric wire 3 painted, first valve 69 and second valve 73 were all closed, thereby do not fill clean liquid in nozzle cover 55.

Further, in coloring nozzle 31, when instruction according to controller 19, when stopping to the outer surface 3a of electric wire 3 colouring, promptly when stopping to spray the colouring material, stop to apply electric current to coil 40, and the base end 37a of valve body 44 contacts first nozzle arrangement 37.Then, be positioned at colouring material that having of the second largest diameter portion 151 of second nozzle arrangement 50 and minor diameter 152 places increase flow velocity owing to inertia moves to first diameter portion 153.

At this moment, because the colouring material moves to the first diameter portion 153 of internal diameter greater than minor diameter 152 internal diameters, so the flowing velocity of colouring material reduces.Therefore, the colouring material that flow velocity reduces stops, thereby the liquid surface of colouring material and the top end wall 50b of second nozzle arrangement 50 are in same surface.Thus, prevented that the colouring material from spilling second nozzle arrangement 50.

In addition, when colouring injection of material when stopping, the amount that is received in the colouring material in the nozzle member 54 be do not have under the situation of inertia, the liquid surface of the material of will painting is arranged to be in the end wall 50c of minor diameter 152 amount of the colouring material on same surface.That is, because inertia, the colouring material that moves from second largest diameter portion 151 and minor diameter 152 will be received in the first diameter portion 153.

Reduce and after the liquid surface of the material of paint is in the surface identical with the top ends 50b of second nozzle arrangement 50, the pressure of atmosphere will move to first diameter portion 153 interior colouring materials and push back to minor diameter 152 at the flow velocity of colouring material.The liquid surface of the colouring material that is urged as shown in Figure 8, and the end wall 50c of minor diameter 152 are in same surface.In this case, the colouring material has only the liquid surface ability ingress of air that is in same surface with the end wall 50c of minor diameter 152.Thus, prevent that bubble from entering in the nozzle member 54, prevent that promptly it from entering the sidepiece than more close first nozzle arrangement 37 of end wall 50c.

Further, in coloring nozzle 31, when valve body 44 is in the close position with after stopping to spray the colouring material, first valve 69 and second valve 73 are all opened, gas in aspirator 71 sucking-offs second container 70, and pressurized air source 33 is supplied to gas-pressurized in first container 67.Then, to be supplied to space 61 from first container 67 be in the nozzle cover 55 to clean liquid.The clean liquid that is supplied in the space 61 can not leak downwards from the bottom of lid body 56 owing to the surface tension of for example clean liquid, and clean liquid is progressively filled in the space between nozzle member 54 and the lid body 56.After space 61 was full of clean liquid, clean liquid was directed to second container 70.

Then, by opening

valve

69,73 with the specific duration (such as ten minutes or 20 minutes) that is stored in advance in the controller 19, coloring nozzle 31 is supplied to clean liquid in the space 61 via first container 67, and second container 70 61 receives clean liquids from the space subsequently.Thus, coloring nozzle 31 is with the end in electric wire 3 these sides of the nozzle member 54 in the clean liquid flooding nozzle lid 55.

Then, according to the instruction that comes self-controller 19, coloring nozzle 31 is closed

valve

69,73 simultaneously.Then, according to the instruction that comes self-controller 19, coloring nozzle 31 is opened first valve 69 with very short (such as ten milliseconds) and the second specific duration that before had been stored in the controller 19, and closed once more subsequently first valve 69.Thus, the end wall 56a of the lid body 56 of the liquid surface (interface) of the clean liquid in the space 61 and nozzle cover 55 is provided with at grade.Then, according to the instruction that comes self-controller 19, coloring nozzle 31 keeps this state with the 3rd specific duration that before was stored in the controller 19.Further, at this moment, according to the instruction that comes self-controller 19, coloring nozzle 31 can closed second valve 73 and through after the described second specific duration, and coloring nozzle 31 can closed first valve 69, rather than

closed valve

69,73 simultaneously.

Then, the colouring material on the nozzle member 54 of electric wire 3 sides of clean liquid dissolving or dispersed deposition coloring nozzle 31, and the material of will painting is removed from the end of nozzle member 54.Thus, clean liquid is removed the colouring material that is deposited on the nozzle member 54 with cleaning nozzle element 54 from nozzle member 54.

Then, according to the instruction that comes self-controller 19, when first valve, 69 closures, coloring nozzle 31 is opened second valve 73, and the gas in aspirator 71 sucking-offs second container 70.Then, space 61 is that nozzle cover 55 interior clean liquids are directed in second container 70.Then, as shown in Figure 3, the clean liquid that is positioned at space 61 and is nozzle cover 55 is disposed to outside the nozzle cover 55.Thus, the end in electric wire 3 one sides of the nozzle member 54 of the coloring nozzle 31 in the cleaning section 64 cleaning nozzles lid 55.When finishing clean liquid from the space during 61 discharging, coloring nozzle 31 closed second valves 73.Then, coloring nozzle 31 is nozzle cover 55 inside to be stored in the 4th specific duration (for example two minutes) in the controller 19, to come clean space 61 by clean liquid, up to the outer surface 3a colouring to electric wire 3.

When forming mark 6 on the outer surface 3a of the coloring means 1 with said structure at electric wire 3, during promptly to the outer surface 3a colouring of electric wire 3, at first guide reel 11 being installed on the framework 10.After cutting

blade

48,49 is provided with apart from each other, makes the electric wire 3 that is wound on the guide reel 11 pass stretching unit 13, relaxation absorption unit 14 successively, go up color element 15 and pipeline 16 and be clamped between the paired delivery roll 12.Then, each coloring nozzle 31 is attached to the precalculated position of the corresponding units body 30 of color element 15, and is connected to the corresponding colouring material source 32 and first container 67.Then, pressurized-gas source 33 is connected to the colouring material source 32 and first container 67.Then, air-breathing member siphons away the gas in the pipeline 16.

Then, by rotation delivery roll 12, electric wire 3 is drawn out from guide reel 11, and transmits along the longitudinal direction of electric wire 3.Simultaneously, stretching unit 13 remains on extended state owing to the first active force H1 provides friction with electric wire 3.Then, cylinder 27 activates removable roller 26 by the second active force H2 and also promptly activates electric wire 3.Then, as mentioned above, the colouring material is supplied to the runner 39 of coloring nozzle 31 from colouring material source 32, and clean liquid is supplied to space 61 from first container 67.

Then, when the pulse signal of specific pattern during from encoder 17 input controllers 19, controller 19 puts on electric current the coil 40 of predetermined coloring nozzle 31 and continues specific durations with specified time interval.Thereby, coloring nozzle 31 with the colouring injection of material of specified quantitative to the outer surface 3a of electric wire 3.Then, evaporate solvent or the liquid dispersant colouring material from the outer surface 3a that is deposited on electric wire 3, the outer surface 3a of electric wire 3 applies by the dyestuff colouring or by pigment thus.Solvent or liquid dispersant that air-breathing member evaporates from the outer surface 3a that is deposited on electric wire 3 through piping 16 sucking-offs.Thus, the surperficial 3a to electric wire 3 paints.Then, to nozzle cover 55 cleaning insides.

When basis had been transmitted the electric wire 3 of length-specific from the data judgement of encoder 17, controller 19 stopped the rotation of delivery roll 12.Then, electric wire 3 is lax between the paired guide reel 24 of relaxation absorption unit 14 especially, and is moved to position shown in double dot dash line among Fig. 1 by the removable roller 26 that the second active force H2 activates.Then, tensile bar 29 elongations of the cylinder 27 of relaxation absorption unit 14.Thus, relaxation absorption unit 14 absorbs the lax of electric wire 3.

Then, paired cutting

blade

48,49 is closer to each other, and cutting electric wire 3.Thus, the electric wire 3 that has mark 6 on the acquisition outer surface 3a as shown in Figure 5.

According to present embodiment, when spraying the colouring material, when the colouring material when first nozzle arrangement 37 moves to the minor diameter 152 of second nozzle arrangement 50, flow velocity increases, and the colouring material ejects from the end wall 50c of the close electric wire 3 of minor diameter 152.Therefore, the amount of colouring material can be regulated, and the definition of colouring droplets of materials increases.Further, when stopping to spray the colouring material, in minor diameter 152, have the colouring material that increases flow velocity because inertia moves to first diameter portion 153 inside, and when painting material when minor diameter 152 moves to first diameter portion 153, flow velocity reduces.Therefore, the liquid surface of colouring material stops at the plane place identical with the end wall of close the object of first diameter portion 153, promptly stops at the plane identical with the top end wall 50b of second nozzle arrangement and locates.Then, atmospheric pressure makes the colouring material be back to minor diameter 152, and the liquid surface of colouring material stops at the plane place identical with the end wall 50c of minor diameter 152.Therefore, prevented that bubble from entering in the coloring nozzle 31, promptly than the sidepiece of more close first nozzle arrangement 37 of end wall 50c.Therefore, can provide a kind of material drippage that can prevent to paint, obstruction coloring nozzle, the unsettled coloring nozzle of injection direction.

In the above-described embodiment, first nozzle arrangement 37 and second nozzle arrangement 50 are separated from each other, yet according to the present invention, first nozzle arrangement 37 and second nozzle arrangement 50 can be one each other.Further, according to above-mentioned embodiment, second nozzle arrangement 50 is formed by single member.Yet second nozzle arrangement 50 can be combined to form by a plurality of members with different inner diameters.Further, according to above-mentioned embodiment, the inwall of second nozzle arrangement 50 forms stepped.Yet according to the present invention, the inwall of second nozzle arrangement 50 can form taper and change internal diameter like this.Further, according to the present invention, second nozzle arrangement 50 comprises minor diameter 152 and first diameter portion 153 at least.Second nozzle arrangement 50 can not comprise second largest diameter portion 151.

In the present invention, the multiple material such as acrylic acid coating material, China ink (dyestuff or pigment) and UV China ink can be used as colouring liquid or coating material.

In the above-described embodiment, described and constituted the electric wire 3 that is arranged on the wire harness in the vehicle.Yet electric wire 3 not only is applied to vehicle, but also can be applicable to various electronic installations or multiple electrical equipment such as computer.

In the above-described embodiment, the outer surface 3a of 31 pairs of electric wires 3 of coloring nozzle colouring.Yet coloring nozzle 31 can be to other plurality of target thing colouring.

Although the present invention has been undertaken describing fully by example with reference to the accompanying drawings, yet should be understood that multiple change and revise to be conspicuous for those skilled in the art.Therefore, unless these changes and modification break away from the scope of the invention that limits hereinafter, all should be interpreted as comprising in the present invention.

Claims

1. coloring nozzle, the liquid state colouring material of specified quantitative is injected into the outer surface of object through described coloring nozzle, thereby the outer surface that is attached to described object by the drop that makes described colouring material is given described object colouring, and described coloring nozzle comprises:

Be used to hold described colouring container of material;

First nozzle arrangement, it forms cylindric, and described colouring material is mobile within it, and described first nozzle arrangement is communicated with described container; And

Second nozzle arrangement, it forms cylindric, and described colouring material flows within it, and described second nozzle arrangement is than the more close described object setting of described first nozzle arrangement, and is connected to described first nozzle arrangement,

Wherein, described second nozzle arrangement comprises: minor diameter, and its internal diameter is less than the internal diameter of described first nozzle arrangement; And first diameter portion, described first diameter portion is than the more close described object setting of described minor diameter, and the internal diameter of described first diameter portion is greater than the internal diameter of described minor diameter.

2. coloring nozzle as claimed in claim 1, wherein, described second nozzle arrangement is than the more close described first nozzle arrangement setting of described minor diameter, and further comprise second largest diameter portion, the internal diameter of described second largest diameter portion is greater than the internal diameter of described minor diameter but less than the internal diameter of described first nozzle arrangement.