CN214046102U

CN214046102U - Nozzle of rotary plasma spray gun

Info

Publication number: CN214046102U
Application number: CN202120119607.7U
Authority: CN
Inventors: 蔡卫
Original assignee: Shenzhen Sing Fung Intelligent Manufacturing Co ltd
Current assignee: Shenzhen Sing Fung Intelligent Manufacturing Co ltd
Priority date: 2021-01-15
Filing date: 2021-01-15
Publication date: 2021-08-24
Anticipated expiration: 2031-01-15

Abstract

The utility model discloses a rotatory plasma spray gun nozzle, including the nozzle body, the one end of nozzle body is equipped with the import, this internal have of nozzle with the toper passageway of import intercommunication, the nozzle body is kept away from the one end of import be equipped with the extension that the nozzle body links to each other, be equipped with the spout on the periphery wall of extension, have continuous first passageway and second passageway in the extension, first passageway is kept away from the one end of second passageway with toper passageway intercommunication, the second passageway is kept away from the one end of first passageway with the spout intercommunication. The utility model provides a rotatory plasma spray gun nozzle can handle the inside of product, has satisfied the production demand of product, realizes the effective processing to the product inside.

Description

Nozzle of rotary plasma spray gun

Technical Field

The utility model relates to a plasma treatment facility technical field especially relates to a rotatory plasma spray gun nozzle.

Background

The plasma is an ionized gaseous substance consisting of positive and negative ions generated after atoms and radicals are ionized after part of electrons are deprived, the plasma is a good electric conductor, the plasma can be captured, moved and accelerated by utilizing an ingeniously designed magnetic field, and the development of the plasma physics provides new technology and process for the further development of materials, energy sources, information, environmental space, space physics, geophysical and other science, so that the application of the plasma is very wide, and comprises the digital industry, the electronic industry, the automobile industry, the printing and packaging industry and the like.

The existing plasma spray nozzle is divided into a direct spray nozzle used on a direct-current spray gun and a rotary spray nozzle used on a rotary spray gun, wherein the direct spray nozzle is suitable for products which need to be processed in a small and narrow range, the rotary spray nozzle is suitable for products which need to be processed in a large range, the two spray nozzles can only process the outer surface plane of the products, and for products with cavities or through holes, such as annular products, the products are difficult to enter the interior of the products for surface processing, so that the rotary plasma spray gun nozzle capable of processing the interior of the products is needed to meet the use requirements of partial products.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: provided is a rotating plasma torch nozzle capable of treating the inside of a product.

In order to solve the technical problem, the utility model discloses a technical scheme be: the utility model provides a rotatory plasma spray gun nozzle, includes the nozzle body, the one end of nozzle body is equipped with the import, this internal have of nozzle with the toper passageway of import intercommunication, the nozzle body is kept away from the one end of import be equipped with the extension that the nozzle body links to each other, be equipped with the spout on the periphery wall of extension, have continuous first passageway and second passageway in the extension, first passageway is kept away from the one end of second passageway with toper passageway intercommunication, the second passageway is kept away from the one end of first passageway with the spout intercommunication.

Further, the extension part and the first channel are respectively cylindrical, and the axial direction of the first channel is consistent with the axial direction of the extension part.

Further, the second channel is cylindrical, and the included angle between the axis direction of the second channel and the axis direction of the first channel is 45 degrees.

Further, the nozzle body is funnel-shaped, and the diameter of the end face of the end, connected with the extension part, of the nozzle body is consistent with the diameter of the extension part.

Further, the tapered channel comprises a first tapered portion and a second tapered portion which are connected, and the taper of the first tapered portion is smaller than that of the second tapered portion.

Further, the first conical part and the second conical part are smoothly connected through a first transition part, and the first transition part is arc-shaped.

Further, the tapered channel is smoothly connected with the first channel through a second transition portion, and the second transition portion is arc-shaped.

Furthermore, the periphery wall of the nozzle body is provided with a thread part surrounding the inlet.

Furthermore, two opposite sides of the peripheral wall of the nozzle body are respectively provided with a notch.

Further, the nozzle body and the extension part are of an integral structure.

The beneficial effects of the utility model reside in that: the utility model provides a rotatory plasma torch nozzle has continuous nozzle main part and extension, wherein nozzle main part and rotatory spray gun cooperation and extension stretch into in the product, rotatory spray gun produces plasma and gets into in the rotatory plasma torch nozzle by the import and concentrate to first passageway at the in-process that flows along the toper passageway, plasma is outside spout blowout rotatory plasma torch nozzle by the extension side through first passageway and second passageway in proper order, and rotatory plasma torch nozzle is along with rotatory spray gun pivoted in-process plasma evenly with the contact of product internal perisporium, realize the effective processing to product inside.

Drawings

Fig. 1 is a schematic structural view of a nozzle of a rotary plasma torch according to a first embodiment of the present invention;

fig. 2 is a schematic structural view of a rotating plasma torch nozzle according to another view angle of the first embodiment of the present invention;

fig. 3 is a cross-sectional view of a nozzle of a rotary plasma torch according to a first embodiment of the present invention.

Description of reference numerals:

1. a nozzle body; 2. an inlet; 3. a tapered channel; 31. a first tapered portion; 32. a second tapered portion; 33. a first transition portion; 4. an extension portion; 41. a first channel; 42. a second channel; 43. a second transition portion; 5. a spout; 6. a threaded portion; 7. cutting; 8. and (4) blind holes.

Detailed Description

In order to explain the technical content, the objects and the effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.

Referring to fig. 1 to 3, a nozzle of a rotary plasma torch includes a nozzle body 1, an inlet 2 is disposed at one end of the nozzle body 1, a tapered passage 3 communicated with the inlet 2 is disposed in the nozzle body 1, an extension portion 4 connected to the nozzle body 1 is disposed at one end of the nozzle body 1 away from the inlet 2, a nozzle 5 is disposed on an outer peripheral wall of the extension portion 4, a first passage 41 and a second passage 42 connected to each other are disposed in the extension portion 4, one end of the first passage 41 away from the second passage 42 is communicated with the tapered passage 3, and one end of the second passage 42 away from the first passage 41 is communicated with the nozzle 5.

The utility model discloses a structural principle brief follows as follows: the rotating plasma torch nozzle comprises a nozzle body 1 and an extension part 4 which are connected, wherein an inlet 2 is arranged at one end of the nozzle body 1, plasma generated by the rotating torch enters the rotating plasma torch nozzle from the inlet 2 after the nozzle body 1 is connected with the rotating torch in a matching way, a conical channel 3 for concentrating the plasma is arranged in the nozzle body 1, the extension part 4 is used for extending into a product to be processed, a nozzle 5 for spraying the plasma out of the rotating plasma torch nozzle is arranged on the outer peripheral wall of the extension part 4, a first channel 41 and a second channel 42 for communicating the conical channel 3 with the nozzle 5 are arranged in the extension part 4 so as to guide the plasma to the nozzle 5, the plasma generated by the rotating torch firstly flows along the conical channel 3 and is gradually concentrated to the first channel 41 after entering the rotating plasma torch nozzle, the plasma is sprayed out from the nozzle 5 on the side surface of the extension part 4 under the guide of the second channel 42 after entering the first channel 41, and plasma is uniformly sprayed to the inner wall of the product in the process that the nozzle of the rotary plasma spray gun rotates along with the rotary spray gun, so that the inner part of the product is effectively treated.

From the above description, the beneficial effects of the present invention are: the utility model provides a rotatory plasma spray gun nozzle can handle the inside of product, has satisfied the production demand of product, realizes the effective processing to the product inside.

Further, the extension portion 4 and the first passage 41 are respectively cylindrical, and the axial direction of the first passage 41 coincides with the axial direction of the extension portion 4.

Further, the second passage 42 is cylindrical, and an included angle between the axial direction of the second passage 42 and the axial direction of the first passage 41 is 45 °.

As can be seen from the above description, the axial direction of the first passage 41 coincides with the axial direction of the extension portion 4, and the axial direction of the second passage 42 is 45 ° to the axial direction of the first passage 41, so that the plasma jetted from the nozzle 5 is directed at 45 ° to expand the processing range when the rotary torch is rotated.

Further, the nozzle body 1 is funnel-shaped, and the diameter of the end face of one end of the nozzle body 1 connected with the extension part 4 is consistent with that of the extension part 4, so that the whole shape of the nozzle of the rotary plasma spray gun is convenient to manufacture.

As can be seen from the above description, designing the nozzle body 1 to be funnel-shaped can reduce the overall volume of the rotating plasma torch nozzle, and the diameter of the extension 4 is identical to the diameter of the end surface of the nozzle body 1,

further, the tapered passage 3 comprises a first tapered portion 31 and a second tapered portion 32 which are connected, and the taper of the first tapered portion 31 is smaller than that of the second tapered portion 32.

As can be seen from the above description, the tapered passage 3 is formed by connecting the first tapered portion 31 and the second tapered portion 32, and the taper of the first tapered portion 31 is smaller than that of the second tapered portion 32, so that the plasma is more uniformly concentrated along the tapered passage 3, and the plasma is prevented from being largely concentrated at the connection between the tapered passage 3 and the first passage 41.

Further, the first tapered portion 31 and the second tapered portion 32 are smoothly connected by a first transition portion 33, and the first transition portion 33 is arc-shaped.

As is apparent from the above description, the smooth connection of the first tapered portion 31 and the second tapered portion 32 by the first transition portion 33 ensures that the plasma smoothly flows when entering the second tapered portion 32 from the first tapered portion 31.

Further, the tapered channel 3 and the first channel 41 are smoothly connected by a second transition portion 43, and the second transition portion 43 is arc-shaped.

As can be seen from the above description, the tapered passage 3 is smoothly connected to the first passage 41 via the second transition portion 43, so that the plasma can smoothly flow when entering the ground passage from the tapered passage 3.

Further, the outer peripheral wall of the nozzle body 1 is provided with a threaded portion 6 surrounding the inlet 2.

As can be seen from the above description, the screw thread portion 6 is provided on the nozzle body 1 for mounting the nozzle of the rotary plasma torch to the rotary torch, so that the nozzle of the rotary plasma torch can be conveniently mounted and dismounted, and the air tightness of the nozzle of the rotary plasma torch when the nozzle of the rotary plasma torch is connected with the rotary torch can be ensured, thereby preventing the plasma from leaking from the connection between the nozzle of the rotary plasma torch and the rotary torch.

Further, two opposite sides of the outer peripheral wall of the nozzle body 1 are respectively provided with a notch 7.

As can be seen from the above description, the opposite sides of the nozzle body 1 are provided with cutouts 7 to facilitate the use of tools to grip and rotate the nozzle body 1 when installing or removing a rotating plasma torch nozzle.

Further, the nozzle body 1 and the extension portion 4 are of an integral structure.

As can be seen from the above description, the nozzle body 1 and the extension portion 4 are integrally formed, which greatly facilitates the production and manufacture of the nozzle of the rotary plasma torch.

Example one

Referring to fig. 1 to fig. 3, a first embodiment of the present invention is: a nozzle of a rotary plasma spray gun is arranged at the end part of the rotary spray gun, so that the rotary spray gun can perform plasma surface treatment on the interior of a product to meet the production requirement of the product.

As shown in fig. 1, the nozzle of the rotary plasma torch comprises a nozzle body 1, wherein an inlet 2 and an extension 4 are respectively arranged at two opposite ends of the nozzle body 1, a tapered channel 3 communicated with the inlet 2 is arranged in the nozzle body 1, a spout 5 is arranged on the peripheral wall of the extension 4, a first channel 41 and a second channel 42 which are connected are arranged in the extension 4, wherein the first channel 41 is communicated with the tapered channel 3, the second channel 42 is communicated with the spout 5, and plasma generated by the rotary plasma torch sequentially passes through the inlet 2, the tapered channel 3, the first channel 41 and the second channel 42 and is sprayed out through the spout 5. When the nozzle of the rotary plasma torch of the embodiment is used for treating the interior of a product, the extension part 4 extends into the product, plasma generated by the rotary torch is gradually concentrated in the flowing process along the tapered channel 3 and is sprayed out from the nozzle 5 on the side surface of the extension part 4 under the guidance of the first channel 41 and the second channel 42, so that the generated plasma flame is directly contacted with the inner wall of the product, and further the plasma surface treatment is carried out on the inner surface of the product, and the production requirement of the product is met.

Specifically, nozzle body 1 is hourglass hopper-shaped, import 2 is located the one end of 1 major diameter of nozzle body, extension 4 is located the one end of 1 minor diameter of nozzle body, extension 4 is cylindrically just the diameter of extension 4 with the diameter of 1 minor diameter one end of nozzle body equals, makes the whole appearance of rotatory plasma spray gun nozzle is conveniently made, nozzle body 1 reaches extension 4 is preferred integrated structure, does benefit to rotatory plasma spray gun nozzle one shot forming simplifies production technology.

In detail, be equipped with on the periphery wall of nozzle body 1 and encircle open-ended screw thread portion 6, screw thread portion 6 supplies the end connection of rotatory plasma torch nozzle and rotatory spray gun, through will nozzle body 1 is screwed rotatory spray gun on can be with import 2 with rotatory spray gun intercommunication makes the plasma that rotatory spray gun produced gets into in the import 2, and through screw thread portion 6 ensures rotatory plasma torch nozzle with the gas tightness of rotatory spray gun junction prevents that the plasma that rotatory spray gun produced leaks outward. The opposite sides of nozzle body 1 are equipped with incision 7 respectively, two incision 7 is the plane that is parallel to each other set up on the nozzle body 1 incision 7 is in order to supply instrument centre gripping such as spanner nozzle body 1 and then operation nozzle body 1 rotates, makes rotatory plasma spray gun nozzle convenient to detach. The lateral surface of nozzle body 1 still is equipped with the blind hole 8 of indent, blind hole 8 with 7 intervals in the incision set up, are difficult to rotate when using tools such as spanner can stretch into the metal bar during nozzle body 1 supplementary rotation in the blind hole 8 nozzle body 1, or installation further will during nozzle body 1 screws up, convenient operation nozzle body 1 rotates.

Optionally, the nozzle of the rotary plasma spray gun is made of stainless steel, preferably stainless steel with the mark of SUS316L, so that the nozzle of the rotary plasma spray gun has good structural stability, the high temperature resistance and the corrosion resistance of the nozzle of the rotary plasma spray gun are improved, and the long-time stable work of the nozzle of the rotary plasma spray gun is facilitated.

As shown in fig. 3, the tapered passage 3 includes a first tapered portion 31 and a second tapered portion 32 connected to each other, the first tapered portion 31 is connected to the inlet 2, the second tapered portion 32 is connected to the first passage 41, and the taper of the first tapered portion 31 is smaller than that of the second tapered portion 32. Preferably, the first channel 41 and the second channel 42 are smoothly connected through a first transition portion 33, and the first transition portion 33 is arc-shaped, so that plasma flows smoothly from the first arc-shaped portion to the second arc-shaped portion, loss of plasma in the flowing process is reduced, and meanwhile, plasma is prevented from being largely concentrated at the connection position of the second cone portion 32 and the first channel 41 to cause uneven distribution of plasma, and insufficient plasma discharge is prevented.

Further, the first channel 41 is cylindrical, the axial direction of the first channel 41 is consistent with the axial direction of the nozzle body 1, the first channel 41 and the second tapered portion 32 are smoothly connected through an arc-shaped second transition portion 43, the second transition portion 43 guides plasma concentrated along the tapered channel 3 to enter the first channel 41, plasma is prevented from colliding with the inner wall of the tapered channel 3 or the inner wall of the first channel 41 to generate backflow, so that the plasma is prevented from flowing disorderly, and smooth flowing of the plasma in the rotating plasma torch nozzle is ensured.

The second channel 42 is cylindrical, the axial direction of the second channel 42 and the axial direction of the first channel 41 form an angle of 45 degrees, the second channel 42 is arranged to be inclined downwards to guide plasma to be sprayed out of the nozzle of the rotary plasma torch along the downward inclined direction, so that the coverage range of plasma flame is improved, the area capable of being processed by the rotary torch is further enlarged, the processing area of the rotary torch is enabled to cover the inner surface of a product, and the effective processing of the inner surface of the product is realized.

In this embodiment, the diameters of the first channel 41 and the second channel 42 are both 3mm, the nozzle 5 is oval, the size of the nozzle 5 is matched with the size of the second channel 42, the diameter of the second channel 42 is set to 3mm, which can meet the processing requirements of most products, if the diameter of the second channel 42 is too small, the diameter of the ejected plasma flame is reduced, which reduces the processing efficiency of the rotary torch, and if the diameter of the second channel 42 is too large, the ejected plasma is blown away from each other, which causes the plasma flame to be unstable, and the overall length of the plasma flame is shortened, which affects the normal use of the rotary torch. The length of the extension part 4 can be selected according to the actual depth of the inner cavity of the product so as to meet the use requirements of different types of products.

To sum up, the utility model provides a rotatory plasma spray gun nozzle can carry out effectual plasma surface treatment to the inside surface of product, satisfies the production demand of all kinds of products, and the manufacturing is convenient, and long service life can long-time stable work.

The above mentioned is only the embodiment of the present invention, and not the limitation of the patent scope of the present invention, all the equivalent transformations made by the contents of the specification and the drawings, or the direct or indirect application in the related technical field, are included in the patent protection scope of the present invention.

Claims

1. The utility model provides a rotatory plasma torch nozzle, includes the nozzle body, its characterized in that: the one end of nozzle body is equipped with the import, this internal have of nozzle with the toper passageway of import intercommunication, the nozzle body is kept away from the one end of import be equipped with the extension that the nozzle body links to each other, be equipped with the spout on the periphery wall of extension, continuous first passageway and second passageway have in the extension, the first passageway is kept away from the one end of second passageway with the toper passageway intercommunication, the second passageway is kept away from the one end of first passageway with the spout intercommunication.

2. The rotating plasma torch nozzle of claim 1, wherein: the extension part and the first channel are respectively cylindrical, and the axial direction of the first channel is consistent with that of the extension part.

3. The rotating plasma torch nozzle of claim 2, wherein: the second passageway is cylindrical, the axis direction of second passageway with the axis direction's of first passageway contained angle is 45.

4. The rotating plasma torch nozzle of claim 2, wherein: the nozzle body is funnel-shaped, and the diameter of the nozzle body and the end face of one end connected with the extension part is consistent with the diameter of the extension part.

5. The rotating plasma torch nozzle of claim 1, wherein: the tapered channel comprises a first tapered portion and a second tapered portion which are connected, and the taper of the first tapered portion is smaller than that of the second tapered portion.

6. The rotating plasma torch nozzle of claim 5, wherein: the first conical part and the second conical part are smoothly connected through a first transition part, and the first transition part is arc-shaped.

7. The rotating plasma torch nozzle of claim 1, wherein: the tapered channel is smoothly connected with the first channel through a second transition portion, and the second transition portion is arc-shaped.

8. The rotating plasma torch nozzle of claim 1, wherein: the periphery wall of the nozzle body is provided with a thread part surrounding the inlet.

9. The rotating plasma torch nozzle of claim 1, wherein: the opposite sides of the peripheral wall of the nozzle body are respectively provided with a notch.

10. The rotating plasma torch nozzle of claim 1, wherein: the nozzle body and the extension part are of an integral structure.