CN205761883U - A kind of without electrostatic spraying gun - Google Patents

Abstract

A kind of without electrostatic spraying gun, belong to without Electrostatic Spray Technology field.The lance tube passed including nozzle cap and confession coating.Nozzle cap includes kuppe and conducting element.Conducting element includes the connector that tapered portion and one end less with tapered portion are connected.One end away from tapered portion of connector is connected with kuppe.Lance tube includes that the first end and the second end, kuppe are connected with the first end of lance tube, and kuppe is provided with multiple pod apertures connected with lance tube.This eliminates electrostatic generator without electrostatic spraying gun compared with original electrostatic gun, its simple in construction, reduces production cost, and the spraying of coating is more quickly, uniformly.

Description

A kind of without electrostatic spraying gun

Technical field

This utility model relates to without Electrostatic Spray Technology field, in particular to a kind of without electrostatic spraying gun.

Background technology

The electrostatic spraying of steel pipe refers to utilize high-pressure electrostatic electric field to make electronegative paint particles along the contrary side of electric field To directed movement, and paint particles is adsorbed a kind of spraying method in steel tube surface.Its operation principle is: at spray gun and steel pipe Between form high-voltage corona discharge electric field, when powder particle is sprayed through region of discharge by gun slot, and just supplementary set is a large amount of Electronics, become electronegative microgranule, under the effect of electrostatic attraction, be adsorbed to positively charged steel pipe up.

In prior art longer to length, when bigbore steel pipe carries out electrostatic spraying, the speed of spraying is slow, the time is long, Need more spray gun to can be only achieved the coating thickness requirement of needs, and cause the waste of coating.

Utility model content

The purpose of this utility model is that providing a kind of eliminates electrostatic generator without electrostatic spraying gun, and structure is more Simply, reducing production cost, the spraying of coating simultaneously is the most quickly, uniformly.

This utility model realizes by the following technical solutions:

A kind of without electrostatic spraying gun, the lance tube passed including nozzle cap and confession coating.Nozzle cap include kuppe and Conducting element.Conducting element includes the connector that tapered portion and one end less with tapered portion are connected.Connector away from the one of tapered portion End is connected with kuppe.Lance tube includes that the first end and the second end, kuppe are connected with the first end of lance tube, kuppe sets It is equipped with multiple pod apertures connected with lance tube.

What preferred embodiment of the present utility model provided provides the benefit that without electrostatic spraying gun:

This utility model provide without electrostatic spraying gun, one end that connector is less with tapered portion is connected, connector One end away from tapered portion is connected with kuppe, and kuppe is connected with the first end of lance tube, kuppe is provided with multiple with The pod apertures of lance tube connection.After coating powder enters lance tube, eject from the pod apertures of kuppe, be injected in cone In shape portion, due to the effect of tapered portion, make coating powder be shot back in the opposite direction and be completely dispersed and come, drop and be attached to On steel pipe, carry out the even application of steel pipe.This is very simple, due to provide at compressed air without the structure of electrostatic spraying gun Power just can form the spraying of steel pipe, saves the energy, also reduces production cost, and meanwhile, the internal diameter of lance tube is relatively big, disposably More coating powder can be had to enter spray gun, the spraying of coating can be made more quickly, uniformly.

Accompanying drawing explanation

In order to be illustrated more clearly that the technical scheme of this utility model embodiment, will use required in embodiment below Accompanying drawing be briefly described, it will be appreciated that the following drawings illustrate only some embodiment of the present utility model, the most should be by Regard the restriction to scope as, for those of ordinary skill in the art, on the premise of not paying creative work, also may be used Fall within protection domain of the present utility model obtaining other relevant accompanying drawings according to these accompanying drawings.

The structural representation without electrostatic spraying gun that Fig. 1 provides for this utility model；

Fig. 2 for this utility model provide without the structural representation of lance tube in electrostatic spraying gun；

Fig. 3 for this utility model provide without the assembling structural representation of nozzle cap in electrostatic spraying gun；

Fig. 4 for this utility model provide without the structural representation of kuppe in electrostatic spraying gun；

Fig. 5 for this utility model provide without the structural representation of conducting element in electrostatic spraying gun；

Fig. 6 for this utility model provide without the structural representation of process sleeve in electrostatic spraying gun.

Reference collects:

Without electrostatic spraying gun 100；Nozzle cap 110；Lance tube 140；Inlet connector 160；First end 141；Second end 142；Reduction nipple 143；Fittings 144；Big pipe joint 145；Hollow pipe 146；Jointing 147；Kuppe 120；Lead Stream part 130；Process sleeve 137；Diversion division 121；Connecting portion 122；Supporting part 123；First connects end 124；Second connects end 125； Pod apertures 126；First through hole 127；Tapered portion 131；Connector 132；Columnar part 133；Second through hole 138.

Detailed description of the invention

For making the purpose of this utility model embodiment, technical scheme and advantage clearer, new below in conjunction with this practicality Accompanying drawing in type embodiment, is clearly and completely described the technical scheme in this utility model embodiment, it is clear that retouched The embodiment stated is a part of embodiment of this utility model rather than whole embodiments.Generally described in the accompanying drawing herein and The assembly of this utility model embodiment illustrated can be arranged with various different configurations and design.Therefore, below to attached The detailed description of the embodiment of the present utility model provided in figure is not intended to limit claimed scope of the present utility model, But it is merely representative of selected embodiment of the present utility model.Based on the embodiment in this utility model, ordinary skill people The every other embodiment that member is obtained under not making creative work premise, broadly falls into the model of this utility model protection Enclose.

In description of the present utility model, it should be noted that the orientation of the instruction such as term " interior ", " outward " or position relationship For based on orientation shown in the drawings or position relationship, or the orientation usually put when this utility model product uses or position Relation, is for only for ease of description this utility model and simplifies description rather than instruction or imply that the device of indication or element must Must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.

Describe additionally, term " first ", " second " etc. are only used for distinguishing, and it is not intended that indicate or imply relatively important Property.

In description of the present utility model, in addition it is also necessary to explanation, unless otherwise clearly defined and limited, term " sets Put ", should be interpreted broadly " installation ", " being connected ", " connection ", connect for example, it may be fixing, it is also possible to be to removably connect, Or be integrally connected；Can be to be mechanically connected, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to pass through intermediary It is indirectly connected to, can be the connection of two element internals.For the ordinary skill in the art, can manage with concrete condition Solve above-mentioned term concrete meaning in this utility model.

It should also be noted that similar label and letter represent similar terms, therefore, the most a certain Xiang Yi in following accompanying drawing Individual accompanying drawing is defined, then need not it be defined further and explains in accompanying drawing subsequently.

The structural representation without electrostatic spraying gun 100 that Fig. 1 provides for the present embodiment.Refer to Fig. 1, the present embodiment In, include nozzle cap 110, lance tube 140 and inlet connector 160 without electrostatic spraying gun 100.

Inlet connector 160 is used for connecting feed pipe, and feed pipe connection coating case (Fig. 1 does not shows), coating case is used for putting painting Material, the bottom of coating case is provided with compressed air inlet, and the top of coating case is provided with multiple isolation cloth, when compressed air is from entering After entering coating case at Kou, the coating powder in coating case can constantly move, and powder is floating state.Further, powder End, can be uniformly distributed through isolation cloth through the coating powder after isolation cloth in the shape that scatters, and, there is certain power.Its Feed pipe can be entered, arrive without electrostatic spraying gun 100.

Please continue to refer to Fig. 1, in the present embodiment, lance tube 140 passes, including the first end 141 and the second end for coating 142, inlet connector 160 is connected with the second end 142 of lance tube 140, and feed pipe connects with lance tube 140, the painting in feed pipe Material powder can enter in lance tube 140 smoothly.In the present embodiment, coating powder is epoxy resin, and epoxy resin is to steel tubing The surface of material has the adhesive strength of excellence, is liable to stick to the surface of steel pipe, forms epoxy resin layer.Make the stability of steel pipe More preferably, will not get rusty, it is to avoid it is corroded by acid, alkali, salt etc..

The structural representation of the lance tube 140 without electrostatic spraying gun 100 that Fig. 2 provides for the present embodiment.Join the most in the lump Readding Fig. 1 and Fig. 2, in the present embodiment, lance tube 140 includes the first end 141 and the second end 142, and the first end 141 includes that reducer pipe connects 143 and hollow pipe 146.Reduction nipple 143 includes fittings 144 and big pipe joint 145, the fittings being connected 144 and big pipe joint 145 be hollow structure, fittings 144 is connected with inlet connector 160, and fittings 144 and big pipe connect 145 all connect with feed pipe.In the present embodiment, feed pipe is enclosed within outside fittings 144, at feed pipe and fittings The junction of 144 arranges inlet connector 160, makes feed pipe be fixed on outside fittings 144.Being preferably provided with, inlet connector 160 is Metal clasp, feed pipe is fastened on outside fittings 144, is fixed feed pipe by metal clasp.

Please continue to refer to Fig. 2, in the present embodiment, hollow pipe 146 is connected with big pipe joint 145, so, hollow pipe 146 Internal diameter is bigger than the internal diameter of feed pipe, has bigger space when of making coating powder in hollow pipe 146, it is also possible to enter More coating powder, so that the speed that spray painting is on steel pipe is faster, improves work efficiency.

Continuing with in the lump refering to Fig. 1 and Fig. 2, in the present embodiment, the first end 141 of lance tube 140 includes jointing 147, one end of jointing 147 is connected with one end away from big pipe joint 145 of hollow pipe 146, the other end and nozzle cap 110 Connecting, hollow pipe 146 connects jointing 147.In the present embodiment, jointing 147 is the tubular structure of hollow, jointing 147 are provided with the first female thread, are connected with the threaded one end away from big pipe joint 145 of hollow pipe 146, make jointing 147 More firm with the attachment structure of hollow pipe 146, and can dismantle, the when that parts being damaged wherein, permissible It is replaced, cost-effective.

The assembling structural representation of the nozzle cap 110 without electrostatic spraying gun 100 that Fig. 3 provides for the present embodiment, Fig. 4 is The structural representation of the kuppe 120 without electrostatic spraying gun 100 that the present embodiment provides.See also Fig. 1, Fig. 3 and Tu 4, in the present embodiment, nozzle cap 110 includes kuppe (Fig. 3 does not shows), conducting element 130 and process sleeve 137, kuppe 120 and spray First end 141 of gun barrel 140 connects, i.e. kuppe 120 is connected with jointing 147, and kuppe 120 is provided with multiple and spray The pod apertures 126 of gun barrel 140 connection, pod apertures 126 passes for coating.

Continuing with in the lump refering to Fig. 1 and Fig. 4, in the present embodiment, kuppe 120 includes diversion division 121, connecting portion 122 and Three supporting parts 123, the two ends of each supporting part 123 are connected with diversion division 121 and connecting portion 122 respectively, adjacent two supports Pod apertures 126, the most adjacent two supporting parts 123 and diversion division 121 is surrounded between portion 123 and diversion division 121 and connecting portion 122 And connecting portion 122 encloses formation pod apertures 126.Diversion division 121 is connected with the first end 141 of lance tube 140, i.e. diversion division 121 are connected with the jointing 147 of lance tube 140.

Please continue to refer to Fig. 4, in the present embodiment, diversion division 121 is the column structure of hollow, and diversion division 121 has first Connecting end 124 and connect the second connection end 125 that end 124 is relative with first, first connects end 124 is provided with the first external screw thread, First connects end 124 threadeds with the first end 141 of lance tube 140.Jointing 147 is provided with the first female thread, and first External screw thread and the first female thread coupling, first connects in end 124 is sheathed on jointing 147 and first connects end 124 and connect Joint 147 is threaded.Coating powder in hollow pipe 146 passes jointing 147, enters the pod apertures of kuppe 120 126, then pass from pod apertures 126.Coating powder in hollow pipe 146 through kuppe 120 out when, can be to painting Material powder carry out certain dispersion, even if coating powder Range compress air intlet is relatively far away from, coating powder also will not conglomeration, Steel pipe well can be sprayed.

Please continue to refer to Fig. 4, in the present embodiment, three supporting parts 123 are uniformly distributed along the circumference of diversion division 121.Make three The setting between diversion division 121 and connecting portion 122 of the individual supporting part 123 is more uniform, and the structure of kuppe 120 is more stable, Increasing the intensity of kuppe 120, kuppe 120 is less likely to occur to damage, and increases the service life of kuppe 120.Similar reality Execute mode it may also is that kuppe 120 includes two, four, five or more supporting part 123, the two ends of each supporting part 123 It is connected with diversion division 121 and connecting portion 122 respectively, with diversion division 121 and connecting portion 122 between adjacent two supporting parts 123 Form pod apertures 126.

The structural representation of the conducting element 130 without electrostatic spraying gun 100 that Fig. 5 provides for the present embodiment.Join the most in the lump Readding Fig. 1, Fig. 3 and Fig. 5, in the present embodiment, conducting element 130 includes tapered portion 131 and connector 132, and tapered portion 131 has bigger One end and less one end, one end of connector 132 is connected with less one end of tapered portion 131, connector 132 away from tapered portion One end of 131 is connected with kuppe 120, i.e. one end away from tapered portion 131 of connector 132 is connected with connecting portion 122.Preferably Arranging, connector 132 is coupling bar, and coupling bar is provided with the second external screw thread.The connecting portion 122 of kuppe 120 is provided with One through hole 127, the first through hole 127 runs through the two ends of connecting portion 122, is provided with the second female thread, i.e. connects in the first through hole 127 Being provided with the second female thread, the second external screw thread and the second female thread coupling on the inwall in portion 122, one end of coupling bar enters and connects First through hole 127 in portion 122 is also threadeded with connecting portion 122, one end away from connecting portion 122 of coupling bar and tapered portion Less one end of 131 connects.

The coating powder sprayed by the pod apertures 126 of kuppe 120 can act directly in tapered portion 131, taper Portion 131 can produce counteracting force to coating powder, and the effect making coating powder pass through tapered portion 131 is moved in the opposite direction, Meanwhile, being set to tapered portion 131 and make the active area of coating powder greatly, coating powder dispersion effect is good, due to the effect of gravity, Coating powder moves downward, and directly falls on steel pipe, sprays steel pipe, and the spraying making steel pipe is more uniform, and effect is more preferable, Easily reach the coating thickness that steel pipe needs.

In the present embodiment, tapered portion 131 can be adjusted by regulation coupling bar with the area of threadeding of connecting portion 122 Distance with kuppe 120.If the connection area that coupling bar is connected with connecting portion 122 is relatively small, connecting portion is relatively Short, then tapered portion 131 is relatively large with the distance of kuppe 120, and coating powder sprays from the pod apertures 126 of kuppe 120 Time, the power in tapered portion 131 of beating is relatively small, and coating powder is relatively concentrated after tapered portion 131 falls.If The connection area that coupling bar is connected with connecting portion 122 is relatively large, and connecting portion is relatively long, then tapered portion 131 and kuppe The distance of 120 is relatively small, and coating powder, from the pod apertures 126 of kuppe 120 sprays when, is beaten in tapered portion 131 Power is relatively large, and coating powder relatively disperses after tapered portion 131 falls.Spraying needs according to different steel pipes, The distance of tapered portion 131 and kuppe 120 can be adjusted, in order to improve without electrostatic spraying gun 100 by regulation coupling bar Work efficiency.

Please continue to refer to Fig. 5, in the present embodiment, conducting element 130 includes columnar part 133, the end face of columnar part 133 and cone Bigger one end end face in shape portion 131 connects.Coating powder is injected in tapered portion 131 when, tapered portion 131 is by the biggest The effect of power, the end face in bigger one end of tapered portion 131 connects columnar part 133, and can increase tapered portion 131 bears energy Power, prevents tapered portion 131 from deforming after a long time use, makes conducting element 130 be less likely to occur to destroy, increases conducting element 130 Service life.

Please continue to refer to Fig. 5, in the present embodiment, the columnar part 133 of conducting element 130, tapered portion 131 and connector 132 1 Body formed, the structure making conducting element 130 is more stable, and conducting element 130 need not segmentation and is processed, then is attached, permissible Directly cast, added facility during making, reduced manufacturing process, decrease the quantity of the part of conducting element 130, simultaneously Too increase the intensity of conducting element 130.

The structural representation of the process sleeve 137 without electrostatic spraying gun 100 that Fig. 6 provides for the present embodiment.Join the most in the lump Readding Fig. 1, Fig. 3 and Fig. 6, in the present embodiment, process sleeve 137 is round table-like structure, and process sleeve 137 is provided with the second through hole 138, Second through hole 138 runs through the two ends of process sleeve 137.Assembling nozzle cap 110 when, coupling bar passes the second through hole 138 and threaded with the connecting portion 122 of kuppe 120, the external diameter of coupling bar, less than the diameter of the second through hole 138, makes connection Having space between bolt and process sleeve 137, coating powder can pass through from space.Process sleeve 137 is sheathed on the second connection end Outside 125, the second connection end 125 of diversion division 121 is sliding surface, and process sleeve 137 is rubber sleeve, has certain elasticity, process sleeve 137 are connected end 125 interference fit with second, are sheathed on outside the second connection end 125.

The operation principle without electrostatic spraying gun 100 that the present embodiment provides is: first preheated by steel pipe, in order to coating energy Enough surfaces being well attached to steel pipe.Then open compressed-air actuated valve, make compressed air compression bottom coating case Air intlet enters coating case, makes the coating powder in coating case constantly move, is suspended in coating case, and a part of powder passes Multilamellar isolation cloth above coating case, enters feed pipe, and the coating powder in feed pipe, due to the effect of compressed-air actuated power, continues Continue and move in the hollow pipe 146 of lance tube 140, and spray from the pod apertures 126 of kuppe 120, through process sleeve 137 Second through hole 138 and the space of the coupling bar of conducting element 130, move in the tapered portion 131 of conducting element 130, and tapered portion 131 is right Coating powder stops, makes coating powder move in the opposite direction and spread out.Finally, due to the effect of gravity, make Scattered coating powder falls on the surface of steel pipe, forms the spraying of steel pipe.

During pipe coating, according to thickness and the uniformity of needs of the coating powder of pipe coating, by rotation Turn the coupling bar of conducting element 130 to regulate the distance between the tapered portion 131 of conducting element 130 and process sleeve 137, thus control to be coated with Material powderject after the tapered portion 131 of conducting element 130, the degree of scatter of coating and the spraying rate of coating.

The foregoing is only preferred embodiment of the present utility model, be not limited to this utility model, for this For the technical staff in field, this utility model can have various modifications and variations.All in spirit of the present utility model and principle Within, any modification, equivalent substitution and improvement etc. made, within should be included in protection domain of the present utility model.

Claims (10)

1. one kind without electrostatic spraying gun, it is characterised in that include nozzle cap and the lance tube passed for coating, described nozzle cap Including kuppe and conducting element, described conducting element includes the connector that tapered portion and one end less with described tapered portion are connected, institute The one end away from described tapered portion stating connector is connected with described kuppe, and described lance tube includes the first end and the second end, Described kuppe is connected with described first end of described lance tube, described kuppe is provided with multiple and described lance tube and connects Pod apertures.

The most according to claim 1 without electrostatic spraying gun, it is characterised in that described kuppe includes diversion division, connection Portion and three supporting parts, the two ends of each described supporting part are connected with described diversion division and described connecting portion respectively, adjacent two Described pod apertures, described diversion division and described spray gun is surrounded between individual described supporting part and described diversion division and described connecting portion Described first end of pipe connects, and one end away from described tapered portion of described connector is connected with described connecting portion.

The most according to claim 2 without electrostatic spraying gun, it is characterised in that described diversion division have the first connection end and Connect the second connection end that end is relative with described first, described first connects end is provided with the first external screw thread, and described first connects End is threadeded with described first end of described lance tube.

The most according to claim 3 without electrostatic spraying gun, it is characterised in that three described supporting parts are along described diversion division Circumference be uniformly distributed.

The most according to claim 3 without electrostatic spraying gun, it is characterised in that described connecting portion is provided through described company Connecing first through hole at two ends, portion, be provided with the second female thread in described first through hole, described connector is coupling bar, described connection One end of bolt is connected with described first through hole whorl, and the other end is connected with described tapered portion.

The most according to claim 5 without electrostatic spraying gun, it is characterised in that described nozzle cap also includes process sleeve, institute Stating process sleeve to be sheathed on outside described second connection end, described process sleeve is provided through second through hole at described process sleeve two ends, Described coupling bar is threadeded through described second through hole with described connecting portion, and the external diameter of described coupling bar leads to less than described second The diameter in hole.

The most according to claim 6 without electrostatic spraying gun, it is characterised in that described process sleeve is rubber sleeve, described work Skill set is connected end interference fit with described second.

8. according to described in any one of claim 2-7 without electrostatic spraying gun, it is characterised in that described without electrostatic spraying gun Also including the inlet connector for connecting feed pipe, described inlet connector is connected with described second end of described lance tube, described Feed pipe connects with described lance tube.

The most according to claim 8 without electrostatic spraying gun, it is characterised in that described second end include reduction nipple and Hollow pipe, described reduction nipple includes the fittings that is connected and big pipe joint, and described fittings connects with described charging Head connects, and described big pipe joint is connected with described hollow pipe, and described hollow pipe connects described first end.

The most according to claim 9 without electrostatic spraying gun, it is characterised in that described first end includes jointing, institute One end away from described big pipe joint of one end and described hollow pipe of stating jointing is connected, and the other end is with described diversion division even Connecing, described jointing connects described hollow pipe.