CN2618365Y

CN2618365Y - Friction electrostatic generator

Info

Publication number: CN2618365Y
Application number: CN 03225019
Authority: CN
Inventors: 邱碧娃
Original assignee: ZHENGHUA MACHINERY MANUFACTURE CO Ltd DONGGUAN
Current assignee: ZHENGHUA MACHINERY MANUFACTURE CO Ltd DONGGUAN
Priority date: 2003-04-10
Filing date: 2003-04-10
Publication date: 2004-05-26
Anticipated expiration: 2013-04-10

Abstract

The utility model relates to an electrostatic spray gun used for powder spraying, belonging to the frictional static electricity generation device. The utility model adopts the technical proposal that: a sleeve is perforated in a hollow electrostatic tube, while an electrostatic axis is arranged inside the sleeve. Besides, the internal surface of the sleeve is shaped into a fluctuant flexure plane, and the corresponding external surface of the electrostatic axis is also shaped into a fluctuant flexure plane according to that of the sleeve. The utility model has the advantages that the powder can be charged with static electricity through frictions among the powder, thus no additional device is needed any more while the coating result can be largely enhanced. Meanwhile, as the electrostatic tube can be made of insulating material, the cost of the static electricity generation device can be reduced.

Description

Friction-type generation of static electricity device

The utility model relates to a kind of electrostatic gun of powder spraying usefulness.

The electrostatic gun of the usefulness of powder spraying at present mostly is to adopt the end at phasmajector to make powder have electric charge, from its other end ejection, powder coated is sprayed to the mode on the metallic plate of desire covering, but all having phasmajector is blocked by powder easily, the rifle body is aging, the powder of ejection such as is carbonized at defective, and its reason all just has due to the electric charge from initial shape because of powder.

The purpose of this utility model is to provide a kind of friction-type generation of static electricity device.

The utility model is achieved by the following technical solution: sleeve wears what one and is in the phasmajector of hollow, and a static axle is set in sleeve, sleeve inner surface is the flexure plane of fluctuating, and static axle outer surface also forms and the corresponding flexure plane of sleeve flexure plane.

The utility model utilizes the friction between powder, makes powder not need other equipment and makes its static electrification, applies effect and also improves widely, and phasmajector can be made with insulating material, has reduced the cost of generation of static electricity device.

Below in conjunction with accompanying drawing the utility model is further specified:

Accompanying drawing 1 is the utility model three-dimensional exploded view.

Accompanying drawing 2 is the utility model structure cutaway view.

Accompanying drawing 3 is static axle 20 outline drawings.

See accompanying drawing 1,2,3, the utility model comprises phasmajector 10, static axle 20, sleeve 30, shower nozzle 44 and head 12.Sleeve 30 is put in the phasmajector 10 that what is hollow form, and also be plugged with static axle 20 in the sleeve 30, shower nozzle 44 and head 12 are fixed in the two ends of phasmajector 10 respectively, head 12 outer rims that are hollow form have a plane 13, handle 15 is anchored on the plane 13 by screw, phasmajector 10 is by steady pin 18 fixedly on the what head 12, conductive pole 19 is by the outer rim of screw in head 12, be equipped with in the form of a ring tapered sleeve 33 and copper sheathing 32 in the head 12 in regular turn, wherein copper sheathing 32 contacts with conductive pole 19, in order to cooperate static axle 20 to produce static, head 12 front end sleeves are connected to an extension 40 that is hollow form, and extension 40 is provided with an input pipe 41, in order to the input powder, the periphery of extension 40 has one to spray into hole 42, sprays into the drive powder in order to supplied gas.Phasmajector 10 outer peripheral edges one end has a L-shaped groove 11, when phasmajector 10 is inserted in head 12, can embed groove 11 by the conductive pole on the head 12 19, phasmajector 10 other ends are provided with packing ring 34 and pullover 35 in regular turn, the connecting portion 36 of pullover 35 rear ends passes the rear end of packing ring 34 and phasmajector 10, passes from its rear end, leaks in order to prevent gas and powder, sleeve 30 ends are fixed with a Sealing shield ring 31, slide in order to prevent static axle 20.The surface, inside of sleeve 30 is fluctuating flexure plane 300, and static axle 20 surfaces also form and sleeve 30 flexure planes 300 corresponding flexure planes 22, and the peak line of its middle sleeve 30 flexure planes, 300 minimum dotted lines and static axle 20 flexure planes 22 maintains a suitable distance.

When using the utility model, when making powder pass through 20 on sleeve 30 and static axle, because the sleeve 30 inner flexure planes 300,22 that form with static axle 20 surfaces, passage is meander-like and make between the two, between powder runs foul of each other and between the collision of static axle 20, friction produces static, makes powder have electric charge, makes the powder from shower nozzle 44 ejections is attached on the metallic plate of desire covering.

Claims

1, friction-type generation of static electricity device, comprise phasmajector (10), static axle (20), sleeve (30), shower nozzle (44) and head (12), sleeve (30) is put in the phasmajector (10) that what is hollow form, and also be plugged with static axle (20) in the sleeve (30), shower nozzle (44) and head (12) are fixed in the two ends of phasmajector (10) respectively, it is held to levy and is: the surface, inside of sleeve (30) is the fluctuating flexure plane, and static axle (20) surface also forms and the corresponding flexure plane of sleeve (30) flexure plane (300) (22).

2, friction-type generation of static electricity device according to claim 1 is characterized in that: the peak line of minimum dotted line of sleeve (30) flexure plane (300) and static axle (20) flexure plane maintains a suitable distance.