JPS6227236Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to the improvement of a nozzle used for removing metal powder, etc. in machining, cooling and drying products, etc., and is particularly capable of creating a jet stream over a wide range. Regarding nozzles.

2. Description of the Related Art Conventionally, the nozzles shown in FIGS. 5 and 6 are generally known as nozzles that are used to remove metal powder, etc. during machining, and to cool and dry products, etc. over a wide range of areas.

That is, the nozzle 1 shown in FIG. 5 has a cylindrical main body 2.
A plurality of small holes 3 are bored at appropriate intervals in the main body 2, and the fluid flowing into the main body 2 is ejected from the small holes 3.

The nozzle 1' shown in FIG. 6 has a slit-like elongated hole 3' formed in a cylindrical main body 2', and the fluid flowing into the main body 2' is ejected from the elongated hole 3'. There is.

However, the former has the disadvantage that since the main body 2 is integrally molded, if the small hole 3 becomes clogged, it cannot be disassembled for repair or inspection. Also, main body 2
When the small holes 3 are drilled in the pipe, the direction of each small hole 3 is not constant, and the fluid may not be ejected in the same direction. Furthermore, if the main body 2 is made of metal, burrs may be generated within the main body 2 when the small holes 3 are bored, which may impede the flow of fluid and impair the performance of the nozzle. .

On the other hand, like the former, the latter also has the disadvantage that when the elongated hole 3' becomes clogged, it cannot be disassembled for repair or inspection. Also, if the main body 2' is made of metal,
When drilling the elongated hole 3', burrs may be generated within the main body 2', which may impair the performance of the nozzle.

This invention was devised to solve each of the above-mentioned problems, and its purpose is to be able to easily disassemble and remove clogging when it becomes clogged, as well as to facilitate repair and inspection. To provide a nozzle that can form a jet nozzle with high accuracy.

The basic structure of the present invention is a main body having an appropriate length, a lid detachably attached to the top surface of the main body, a chamber-shaped space formed inside these, and a space formed inside the main body. A supply path for introducing pressurized fluid into the space, and a sawtooth spout formed on at least a part of the contact surface between the main body and the lid and communicating with the space.

The pressurized fluid guided into the space by the supply path is
It is sprayed forward from the sawtooth-shaped spout and removes metal powder, etc., or cools and dries products, etc.

In the present invention, the lid is detachably attached to the main body and the spout is formed on the contact surface of the lid, so if the spout becomes clogged, it can be easily removed by removing the lid. In addition, since it can be disassembled, repair and inspection of the nozzle can be easily performed. Furthermore, since the jet nozzle is formed on the contact surface between the main body and the lid, it becomes easy to process the jet nozzle, and even if burrs or the like occur during processing, they can be easily removed and a highly accurate jet nozzle can be formed.

Hereinafter, embodiments of the present invention will be described in detail based on the drawings.

The nozzle 4 includes a substantially rectangular parallelepiped main body 5 and a main body 5.
A lid body 6 attached to the body, a space 7 formed inside these, and a supply path 8 communicating with the space 7
and a spout 9 formed on the contact surface between the main body 5 and the lid 6.

Specifically, the main body 5 has an appropriate length (for example, 153 mm, 305 mm, 610 mm, etc.) made of metal members.
It is formed into a substantially rectangular parallelepiped shape, and an inclined surface b inclined forward (leftward in FIG. 2) is formed on the upper surface 5a along the longitudinal direction.

The lid 6 is formed of a plate-like metal member into a rectangular shape having the same length as the main body 5, and is detachably attached to the horizontal upper surface 5a of the main body 5. That is, the lid 6 is attached by placing it on the horizontal upper surface 5a of the main body 5 and screwing a plurality of bolts 10 into the main body 5. Also, the lid body 6
can be easily removed from the main body 5 by loosening the bolt 10.

A chamber-like space 7 is formed inside the main body 5 and the lid 6. In this embodiment, a recess along the longitudinal direction is formed in the upper surface 5a of the horizontal portion of the main body 5, and the recess is closed with a lid 6, thereby forming a chamber-like space 7.

A supply path 8 for guiding pressurized fluid, that is, compressed air, to the space 7 is provided by a female screw hole bored in the rear side of the main body 5 that communicates with the space 7, and a connecting pipe connected to the pressure line in the female screw hole. It is formed by screwing 11. A plurality of supply paths 8 may be provided depending on the length of the main body 5.

At least a portion of the contact surface between the main body 5 and the lid 6 is provided with a serrated spout 9 that communicates with the space 7 . That is, in this embodiment, the upper surface 5 of the main body 5
A serration 12 is formed on the front side of the main body 5 and continues with the slope 5b and the space 7 and extends along the longitudinal direction of the main body 5, and a spout 9 is formed between the serration 12 and the lid 6.
is formed. In this embodiment, a portion of the serrations 12 is brought into contact with the lid 6.
In addition, an appropriate sealing material (not shown) is provided at the contact surface between the main body 5 and the lid 6 other than the spout 9 and at the contact portion between the bolt 10 and the lid 6, so that the compressed material flowing into the space 7 can be sealed. Air is prevented from leaking from other than the outlet 9.

Next, the function of the nozzle will be explained.

Compressed air (fourth
) is injected forward from the jet nozzle 9. The compressed air injected forward from the jet nozzle 9 changes direction to follow the inclined surface 5b due to an adhesion phenomenon generally known as the Coanda effect, and attracts air around the nozzle 4 (indicated by the broken arrow in FIG. 4). and pull it forward. The air flow from the nozzle 4 is therefore amplified to produce a total flow. This overall flow is used to remove metal powder, etc. during machining, and to cool and dry products. Incidentally, since the total flow is more than 20 times that of compressed air, it is possible to save compressed air. Furthermore, since a portion of the serration 12 is brought into contact with the lid 6, even if the nozzle 4 is dropped or something collides with the nozzle 4, the lid 6 will not deform and the spout 9 will not be crushed. .

In the above embodiment, a recess is formed in the main body 5 and the space 7 is formed by closing the recess with the lid 6. However, as another example, a recess may be formed in both the main body and the lid. Alternatively, a chamber-like space may be formed (not shown).

Further, in the above embodiment, the upper surface 5a of the main body 5
Although the serrations 12 are formed on the front side and the spout 9 is formed between the serrations 12 and the lid body 6, in another embodiment, serrations that are continuous to the space are formed on the lid body, and the serrations of the lid body are A spout may be formed between the main body and the main body (not shown).

Since the present invention has the above configuration, it has the following advantages.

Since the lid body is attached to the main body so that it can be unrolled, and the jet nozzle is formed on the contact surface between these parts, when the jet nozzle becomes clogged, it can be easily removed by removing the lid body. Additionally, since the nozzle can be disassembled, repairs and inspections can be easily performed. Furthermore, since the jet nozzle is formed on the contact surface between the main body and the lid, it becomes easy to process the jet nozzle, and even if burrs or the like occur during processing, they can be easily removed and a highly accurate jet nozzle can be formed.

[Brief explanation of the drawing]

Fig. 1 is a front view of a nozzle showing an embodiment of the present invention, Fig. 2 is a right side view, Fig. 3 is a sectional view taken along the - line in Fig. 1, and Fig. 4 is a sectional view taken along the - line in Fig. 1. , 5 and 6 show a conventional nozzle and are schematic perspective views thereof. 4 is a nozzle, 5 is a main body, 5a is an upper surface, 6 is a lid, 7 is a space, 8 is a supply path, and 9 is a spout.

Claims (1)

[Scope of utility model registration request] A substantially rectangular parallelepiped main body 5 having an appropriate length, a lid 6 detachably attached to the upper surface 5a of the main body 5, a chamber-shaped space 7 formed inside these, and the space. a supply path 8 for introducing pressurized fluid into the section 7;
A nozzle comprising a sawtooth-shaped spout 9 formed on at least a part of the contact surface between the main body 5 and the lid 6 and communicating with the space 7.