CN218637642U - Nozzle with a nozzle body - Google Patents

Abstract

The utility model provides a nozzle (10), can restrain the disorder of the efflux of follow nozzle hole injection. The nozzle (10) comprises: a shaft body (11) having a central axis (11 b); a liquid guide path (12) provided inside the shaft body (11); a liquid chamber (13) which is disposed at the tip of the liquid guide path (12) and is connected to the liquid guide path (12); a nozzle hole (14) that extends in a direction different from the central axis (11 b) and is disposed at the tip end of the liquid chamber; and an outlet plane (15) which is disposed on the shaft body (11), is perpendicular to the nozzle hole (14), and is disposed with an outlet of the nozzle hole.

Description

Nozzle with a nozzle body

Technical Field

The utility model relates to a nozzle.

Background

Conventionally, a liquid ejecting nozzle for removing burrs after machining has been proposed, in which a plurality of ejection holes are formed in a radial direction at a tip end of a shank, as in patent document 1.

Documents of the prior art

Patent document

Patent document 1: japanese patent No. 6333689

SUMMERY OF THE UTILITY MODEL

In the conventional nozzle, the jet flow jetted from the nozzle hole may be disturbed. The purpose of the present invention is to suppress disturbance of a jet flow ejected from a nozzle hole.

The utility model discloses an aspect 1 is a nozzle, and it includes:

a shaft body having a central axis;

a liquid guide path provided inside the shaft body and extending along the central axis;

a liquid chamber connected to the liquid guide path and disposed at a distal end portion of the liquid guide path;

a nozzle hole extending in a direction different from the central axis and disposed at a distal end of the liquid chamber; and

and an outlet plane disposed on the shaft body, perpendicular to the nozzle hole, and having an outlet of the nozzle hole disposed therein.

The nozzle is for example a transverse nozzle or a cleaning lance. The cleaning nozzle is inserted into the cleaning object to spray liquid, and removes foreign matters or burrs inside the cleaning object. The liquid to be sprayed is, for example, a cleaning liquid or a process coolant. The liquid is, for example, an aqueous solution, and is an aqueous cleaning liquid or an aqueous cooling liquid.

The shaft body is connected to, for example, a stem, a tap shank, or a flange. The shaft body is moved relative to the object to be cleaned by a vertical Column (trap Column), a supply device, and a robot.

The liquid chamber is cylindrical. Preferably, the inlet plane is arranged from the bottom surface to the upper end of the liquid chamber. The liquid chamber and the liquid guide path may be coaxial and have the same diameter. The liquid chamber may have a tapered surface at an upper end of the inlet plane to connect the inlet plane and the liquid guide path. The tapered surface is, for example, a straight conical surface arranged with the central axis as the center.

A single or multiple nozzle holes may also be provided. When a plurality of nozzle holes are arranged, the nozzle holes are arranged so as to be rotationally symmetric about the central axis. The inlet plane and the outlet plane are arranged perpendicular to the nozzle holes and are also arranged in a rotationally symmetrical manner about the central axis.

The number of nozzle holes, the angle relative to the central axis, the presence or absence of a right circular conical surface, and the presence or absence of an inlet plane can be arbitrarily combined.

Effect of utility model

According to the present invention, the disturbance of the jet flow ejected from the nozzle hole can be suppressed.

Drawings

Fig. 1 is a perspective view of a nozzle of embodiment 1.

Fig. 2 is a perspective view of the nozzle of embodiment 2.

Fig. 3 is a sectional view taken along plane III of fig. 2.

Fig. 4 is a sectional view taken along line IV-IV of fig. 3.

Fig. 5 is a perspective view of the nozzle of embodiment 3.

Fig. 6 is a sectional view taken along plane VI of fig. 5.

Fig. 7 is a perspective view of the nozzle of embodiment 4.

Fig. 8 is a sectional view taken along plane VIII of fig. 7.

Description of the reference numerals

10. 20, 30, 40 nozzle

11 axle body

13. 23, 33, 43 liquid chamber

14. 24, 44 nozzle hole

15. 45 plane of exit

Detailed Description

(embodiment 1)

As shown in fig. 1, the nozzle 10 of the present embodiment includes a shaft body 11, a liquid guide path 12, a liquid chamber 13, one nozzle hole 14, and one outlet plane 15.

The shaft body 11 has a straight cylindrical shape. The shaft body 11 has an outer cylindrical surface 11c. The tip end portion of the shaft body 11 may have a chamfer 11a formed as a conical surface. The outer diameter of the shaft body 11 is, for example, 4mm to 12mm.

The liquid guide path 12 and the liquid chamber 13 are straight cylinders and are disposed coaxially with the central axis 11b as the center of the shaft body 11. The liquid guide path 12 is connected to the liquid chamber 13. The liquid chamber 13 has a bottom surface 13a. The liquid chamber 13 may have the same diameter as the liquid guide path 12. The inner surface of the liquid chamber 13 is preferably configured smoothly.

The nozzle holes 14 are disposed at the tip end of the shaft body 11 and extend perpendicular to the central axis 11 b. The nozzle hole 14 is a right circular cylinder and penetrates from the outlet plane 15 to the liquid chamber 13. Preferably, the nozzle hole 14 is arranged in the proximal direction with respect to the bottom surface 13a. The diameter of the nozzle hole 14 is, for example, 0.5mm to 2.5mm. The height 64 from the bottom surface 13a to the nozzle center 14c of the nozzle hole 14 is, for example, 1 to 5 times the nozzle diameter 61 (see fig. 3).

The outlet plane 15 is disposed on the outer cylindrical surface 11c of the distal end of the shaft body 11. The outlet plane 15 is perpendicular to the nozzle bore 14. The outlet plane 15 surrounds the entire circumference of the outlet peripheral edge 14a of the nozzle hole 14. The outlet peripheral edge 14a is circular because it is disposed on the outlet plane 15. The outlet plane 15 may be disposed from the tip end of the shaft body 11. Preferably, the plane width 66 (refer to fig. 3) of the outlet plane 15 may also be set as narrow as possible. For example, the planar width 66 is 1.1 to 1.2 times the nozzle diameter 61. For example, the distance 65 from the nozzle center 14c to the edge of the exit plane 15 is 1.1 to 1.2 times the nozzle diameter 61.

According to the nozzle 10 of the present embodiment, the outlet peripheral edge 14a is formed in a circular shape by being disposed on the outlet plane 15. Therefore, disturbance of the jet flow ejected from the nozzle hole 14 can be suppressed, and the jet flow is less likely to expand in an elliptical shape. In other words, the straightness of the jet flow is improved.

By setting the plane width 66 to be narrow, the length of the nozzle hole 14 (see fig. 3) is increased, and the straightness of the jet flow is improved.

(embodiment 2)

As shown in fig. 2 to 4, the nozzle 20 of the present embodiment includes a shaft body 11, a liquid guide path 12, a liquid chamber 23, one nozzle hole 24, and one outlet plane 15. The liquid chamber 23 has an inlet plane 26. Nozzle hole 24 has an outlet circumference 24a and an inlet circumference 24b. Plane III is a plane perpendicular to the central axis 11b and passing through a nozzle center 24c (see fig. 4) of the nozzle hole 24. The IV plane is a plane passing through the central axis 11b and the nozzle center 24 c.

The liquid chamber 23 has a bottom surface 23a. The inlet plane 26 extends from the bottom surface 23a to the base end of the liquid chamber 23. Inlet plane 26 is arranged perpendicular to nozzle holes 24. The inlet plane 26 surrounds the entire periphery of the inlet peripheral edge 24b of the nozzle hole 24. The plane width 67 of the inlet plane 26 may also be set as narrow as possible. As shown in fig. 3, for example, the planar width 67 is 1.1 to 1.2 times the nozzle diameter 61. The height 63 of the inlet plane 26 from the nozzle center 24c is, for example, 5 to 30 times the nozzle diameter 61.

Nozzle bores 24 extend from outlet plane 15 to inlet plane 26. The outlet peripheral edge 24a is circular because it is arranged on the outlet plane 15. The inlet peripheral edge 24b is circular in shape because it is disposed on the inlet plane 26.

According to the nozzle 20 of the present embodiment, the nozzle hole 24 has the circular outlet peripheral edge 24a and the circular inlet peripheral edge 24b, and the uniformity of the velocity distribution of the liquid in the circumferential direction inside the nozzle hole 24 is promoted. Therefore, turbulence of the jet flow can be suppressed, and the jet flow is less likely to expand in an elliptical shape.

(embodiment 3)

As shown in fig. 5 and 6, the nozzle 30 of the present embodiment includes a shaft body 11, a liquid guide path 12, a liquid chamber 33, a plurality of nozzle holes 24, and outlet planes 15 equal in number to the nozzle holes 24. Liquid chamber 33 has the same number of inlet planes 36 as nozzle holes 24. The VI plane is a plane passing through the central axis 11b and the nozzle center 24c of the nozzle hole 24.

The two nozzle holes 24 are arranged perpendicular to the central axis 11b at the distal end of the shaft body 11 and are rotationally symmetric with respect to the central axis 11 b. Outlet plane 15 is arranged at the outlet of nozzle hole 24 so as to be perpendicular to nozzle hole 24. The nozzle holes 24 are arranged in 2 to 4 numbers, for example. When n nozzle holes 24 are arranged, the nozzle holes 24, the outlet plane 15, and the inlet plane 36 are arranged in n-order rotational symmetry.

Liquid chamber 33 has the same number of tapered surfaces 37 as nozzle holes 24. The inlet planes 36 are arranged at the inlets of the nozzle holes 24, respectively, so as to be perpendicular to the nozzle holes 24. The tapered surface 37 is a straight conical surface centered on the central axis 11b, and is provided at the base end of the inlet plane 36. The tapered surface 37 smoothly connects the fluid-conducting path 12 and the inlet flat surface 36. By disposing the tapered surface, disturbance of the liquid flowing into the liquid chamber 33 can be suppressed.

(embodiment 4)

As shown in fig. 7 and 8, the nozzle 40 of the present embodiment includes a shaft body 11, a liquid guide path 12, a liquid chamber 43, a plurality of nozzle holes 44, and outlet planes 45 the same in number as the nozzle holes 44. The liquid chamber 43 may also have an inlet plane 46. The VIII plane is a plane passing through the center axis 11b and the nozzle center 44c of the nozzle hole 44.

The nozzle hole 44 includes an outlet peripheral edge 44a, an inlet peripheral edge 44b, and a nozzle center 44c. The nozzle center 44c intersects the central axis 11b and is inclined from the central axis 11b toward the tip end. The inclination angle 68 is, for example, 20 degrees to 70 degrees. The plurality of nozzle holes 44 are arranged in a rotationally symmetrical manner with respect to the center axis 11 b. For example, the nozzle hole 44 is arranged in 2 to 4 numbers. When n nozzle holes 44 are arranged, the nozzle holes, the outlet plane 45, and the inlet plane 46 are arranged in n-order rotational symmetry.

The outlet plane 45 is disposed at a corner of the distal end of the shaft body 11. The outlet planes 45 are perpendicular to the nozzle centers 44c, respectively. The outlet plane 45 surrounds the entire circumference of the outlet peripheral edge 44 a. The outlet periphery 44a is circular.

The inlet planes 46 are arranged at the corners of the bottom surface of the liquid chamber 43 in the same number as the nozzle holes 44. The inlet planes 46 are perpendicular to the nozzle centers 44c, respectively. The inlet flat 46 surrounds the entire periphery of the inlet peripheral edge 44 b. When the inlet flat surface 46 is arranged, the inlet peripheral edge 44b is circular.

The present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the present invention, and all technical matters included in the technical idea described in the claims of the present invention are the objects of the present invention. The above-described embodiments are preferable examples, and those skilled in the art can realize various alternatives, modifications, variations, and improvements based on the disclosure of the present specification, and these are included in the scope of the technology described in the claims of the present invention.

Claims (11)

1. A nozzle, comprising:

a shaft body having a central axis;

a liquid guide path provided inside the shaft body and extending along the central axis;

a liquid chamber connected to the liquid guide path and disposed at a distal end portion of the liquid guide path;

a nozzle hole extending in a direction different from the central axis and disposed at a distal end of the liquid chamber; and

and an outlet plane disposed on the shaft body, perpendicular to the nozzle hole, and having an outlet of the nozzle hole, wherein a planar width of the outlet plane is 1.1 to 1.2 times a diameter of the nozzle.

2. The nozzle of claim 1, wherein:

the outlet plane surrounds the entire circumference of the outlet circumference of the nozzle bore.

3. The nozzle of claim 1, wherein:

the liquid chamber has an inlet plane perpendicular to the nozzle hole and configured with an inlet of the nozzle hole.

4. The nozzle of claim 2, wherein:

the liquid chamber has an inlet plane perpendicular to the nozzle hole and configured with an inlet of the nozzle hole.

5. The nozzle of claim 3, wherein:

the inlet plane surrounds the entire circumference of the inlet periphery of the nozzle hole.

6. The nozzle of claim 4, wherein:

the inlet plane surrounds the entire circumference of the inlet periphery of the nozzle hole.

7. The nozzle according to any one of claims 1 to 6, wherein:

the nozzle holes are arranged perpendicular to the central axis.

8. The nozzle according to any one of claims 1 to 6, wherein:

the nozzle hole is arranged obliquely with respect to the center axis toward the tip end.

9. The nozzle of claim 1 or 2, wherein:

the nozzle hole and the outlet plane are arranged rotationally symmetrically about the central axis.

10. The nozzle according to any one of claims 3 to 6, wherein:

the nozzle hole and the outlet plane are arranged rotationally symmetrically about the central axis.

11. The nozzle of claim 10, wherein:

the inlet plane is rotationally symmetric about the central axis.

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