TWI605875B - Nozzle device - Google Patents

Description

Nozzle device

The present invention relates to a nozzle device, and more particularly to a nozzle device capable of spraying carbon dioxide particles and a lubricant.

Referring to FIG. 1, the snowflake forming apparatus 1 of the Republic of China Patent No. I377987 is taken as an example, mainly comprising a snowflake forming chamber 11 for forming a carbon dioxide snowflake, and connecting the snowflake forming chamber 11 and having a smaller diameter than the snowflake formation. A sleeve 12 of the chamber 11. Thereby, according to the flow rate = cross-sectional area Ï speed, the cross-sectional area is small and the speed is increased at the same flow rate, and the design of the cross-sectional area is tapered to increase the speed of the carbon dioxide snowflake spray to the outside, and the sleeve 12 can be replaced. The design controls the size of the carbon dioxide snowflake.

However, since the aforementioned sleeve 12 is an additional component, in the case where the speed of the carbon dioxide snowflake is increased, the stability at the time of connection must be considered, so that there is no risk of loosening. Therefore, if the sleeve 12 is fixed to the snowflake forming chamber 11, when the particle size is to be controlled, the entire group is replaced. If the sleeve 12 is sleeved with the snowflake forming chamber 11, the snowflake speed is affected. It is limited to the above-mentioned way of socketing (in the case of patents, there are too many fixing or socketing techniques, and only all possible implementations are covered by fixing or socketing. Therefore, the previous description is not limited to that. However, regardless of the type, the disadvantages of the two methods of fixing or splicing have been mentioned before, but not too fast, otherwise there is a disadvantage that it is easy to fall off.

Accordingly, it is an object of the present invention to provide a nozzle device that achieves both cooling, cleaning, and lubrication effects, as well as space efficiency and ejection speed.

Thus, the nozzle device of the present invention comprises an outer tube, a sleeve, a cooling tube, and a lubrication tube.

The outer tube includes a surrounding wall defining a passage adapted to deliver compressed gas having an outlet formed at one end.

The sleeve is threaded within the outer tube and includes a tube wall defining a tube adapted to deliver compressed gas having a port formed at one end adjacent the outlet.

The cooling tube is disposed within the sleeve and has a length less than the sleeve and includes a cooling outlet for outputting carbon dioxide such that carbon dioxide entering the sleeve generates particles due to phase changes and a compressed gas in the sleeve The port of the sleeve is sprayed to the outside through the outlet of the outer tube.

The lubricating tube is disposed in the outer tube and has a length smaller than the outer tube, and includes a lubricating outlet for outputting lubricant, so that the lubricant entering the outer tube is injected from the outlet gas with the compressed gas in the outer tube external.

The effect of the invention is that in the cutting process, not only the carbon dioxide particles and the lubricant which are sprayed can be used to achieve the effects of cooling, cleaning and lubrication, but also the use of the sleeve-type design to concentrate the pipeline and improve the space efficiency, and Enhance the stability of the structure and increase the speed of the spray.

Referring to Figures 2 and 3, an embodiment of the nozzle assembly of the present invention includes a valve seat 2, an outer tube 3, a sleeve 4, a cooling tube 5, a lubrication tube 6, and a compressed gas tube 7.

The valve seat 2 includes a body 21 and an attachment member 22 disposed on the body 21. The body 21 has two inlets 211, 212 and an interface 213. The attachment member 22 is a magnetic member in this embodiment and can be attached to a processing machine 8 as shown in FIG.

The outer tube 3 includes a surrounding wall 31 that defines a channel 30. The passage 30 is adapted to deliver compressed gas. The surrounding wall 31 is a bellows tube in this embodiment, capable of being arbitrarily flexed and bent, and has an outlet 311 formed at one end, an inlet 312 formed at the other end opposite to the outlet 311, and adjacent to the inlet 312. A tubular section 313 and an outlet section 314 adjacent the outlet 311. The inlet 312 is connected to the interface 213 of the body 21 of the valve seat 2.

The sleeve 4 is inserted into the outer tube 3 from the inlet 211 of the body of the valve seat 2 and includes a tube wall 41 defining a tube 40. The conduit 40 is adapted to deliver compressed gas. The tube wall 41 is made of a nylon straight tube 225 PSI in this embodiment, can withstand a pressure of 15.8 kg/cm 2 , and has a port 411 formed at one end and adjacent to the outlet 311 of the outer tube 3.

The cooling tube 5 is placed in the sleeve 4 and has a length smaller than the sleeve 4 and includes a cooling outlet 51 for outputting carbon dioxide. A gap L is formed between the cooling outlet 51 and the port 411 of the sleeve 4. In the present embodiment, the pitch L is defined by 20 mm to 30 mm, and the size of the aforementioned pitch L can be changed by the depth variation that is inserted into the sleeve 4.

The lubricating tube 6 is inserted into the outer tube 3 from the introduction port 212 of the body of the valve seat 2, and has a length smaller than that of the outer tube 3, and includes a lubricating outlet 61 for outputting lubricant.

The compressed gas tube 7 is connected to the inlet 212 of the body of the valve seat 2, and is passed through the lubricating tube 6 and communicated with a source of compressed gas to allow compressed gas to enter the passage 30.

In addition, it should be noted that the minimum pipe diameter of the pipe section 313 of the outer pipe 3 is greater than the sum of the pipe diameter D1 of the cooling pipe 5 and the pipe diameter D2 of the lubrication pipe 6, that is, D>D1+D2.

Referring to FIG. 4 and FIG. 5, since the general machine tool 7 includes a metal material, it is only necessary to use the attachment member 22 of the valve seat 2 to adsorb the body 21 to the processing machine 8, so that the machine tool can be used. The inventive nozzle device is positioned.

When the compressed gas is injected into the channel 30 of the outer tube 3, the tube 40 of the sleeve 4, and the liquid carbon dioxide is injected into the cooling tube 5, the lubricant is injected into the lubricating tube 6, and enters the tube 40 of the sleeve 4. Carbon dioxide, due to the pressure difference caused by the volume becoming larger, phase changes and particles are generated, forming a gaseous-solid coexisting carbon dioxide, and the carbon dioxide particles will become larger and larger in the stroke of the distance L, that is, the spacing The shorter the L, the less effective the formation of particles. The longer the spacing L, the larger the particles will be formed, but too long will cause the particles to become too large to block the port 411 of the sleeve 4, and then the carbon dioxide particles will follow the sleeve. The compressed gas in 4 is quickly ejected from the port 411 of the sleeve 4 through the outlet 311 of the outer tube 3 to the outside.

At the same time, the lubricant in the outer tube 3 is also mixed with the gaseous-solid carbon dioxide in the outer tube 3, and then sprayed to the outside by the outlet 311.

Due to the compressed gas in the sleeve 4 and the outer tube 3, a great thrust is generated for the carbon dioxide particles. Therefore, in the cutting process, the dust on the surface of the workpiece can be carried away by the injected carbon dioxide particles. Cooling, cleaning, and simultaneous spraying of lubricants can also achieve lubrication. Thereby, the tool life of the processing machine 8 and the smoothness of the surface of the workpiece can be improved.

Through the above description, the advantages of the foregoing embodiments can be summarized as follows:

1. The sleeve 4 has two functions, one of which is that the sleeve 4 has a compressed gas, which can be used as a thrust for the carbon dioxide to leave the cooling tube 5 and accelerate toward the outlet 311 of the outer tube 3. Another function is to increase the diameter of the tube as a space for generating carbon dioxide particles.

2. The invention can utilize the sleeve-type design, integrate the cooling tube 5 and the lubrication tube 6 to enhance the space efficiency, and strengthen the stability of the structure, thereby being able to use the compressed gas to raise the particles of the carbon dioxide under the condition of satisfying the stability requirement. The speed of the spout.

3. Only by changing the depth of the cooling tube 5 into the sleeve 4, the size of the spacing L can be changed, thereby controlling the particle size of the carbon dioxide, which is convenient to assemble and low in cost.

4. In addition, since the internal pressure in the passage 30 of the outer tube 3 is greater than the external pressure, the pressure difference formed in the passage 30 from the outside does not cause carbon dioxide particles or a problem of lubricant backflow.

However, the above is only the embodiment of the present invention, and the scope of the invention is not limited thereto, and all the equivalent equivalent changes and modifications according to the scope of the patent application and the patent specification of the present invention are still The scope of the invention is covered.

2‧‧‧ valve seat
21‧‧‧ body
211‧‧‧Import
212‧‧‧Import
213‧‧‧ interface
22‧‧‧With pendant
3‧‧‧External management
30‧‧‧ channel
31‧‧‧ Around the wall
311‧‧‧Export
312‧‧‧ Entrance
313‧‧‧Body section
314‧‧‧Exit section
4‧‧‧ casing
40‧‧‧ Pipes
41‧‧‧ wall
Port 411‧‧‧
5‧‧‧ Cooling tube
51‧‧‧cooling exit
6‧‧‧Lubrication tube
61‧‧‧Lubrication exit
7‧‧‧Compressed gas tube
8‧‧‧Tool machine
L‧‧‧ spacing
D‧‧‧Minimum diameter
D1‧‧‧ pipe diameter
D2‧‧‧ pipe diameter

Other features and effects of the present invention will be apparent from the following description of the drawings, wherein: Figure 1 is a schematic cross-sectional view of the Chinese Patent No. I377987; Figure 2 is a front elevational view of the present invention An embodiment of the nozzle device; Fig. 3 is an incomplete cross-sectional view of the embodiment; Fig. 4 is an incomplete cross-sectional view similar to Fig. 3, illustrating a state in which carbon dioxide particles and a lubricant are ejected; and Fig. 5 is the embodiment An example of a front view installed in a processing machine.

3‧‧‧External management

30‧‧‧ channel

31‧‧‧ Around the wall

311‧‧‧Export

313‧‧‧Body section

4‧‧‧ casing

5‧‧‧ Cooling tube

51‧‧‧cooling exit

6‧‧‧Lubrication tube

61‧‧‧Lubrication exit

L‧‧‧ spacing

D‧‧‧ area

40‧‧‧ Pipes

41‧‧‧ wall

Port 411‧‧‧

D1‧‧‧ area

D2‧‧‧ area

Claims (9)

A nozzle device comprising: an outer tube comprising a surrounding wall defining a passage adapted to deliver compressed gas, the surrounding wall having an outlet formed at one end; a sleeve disposed within the outer tube a tube wall defining a conduit adapted to deliver compressed gas, the tube wall having a port formed at one end adjacent the outlet; a cooling tube disposed within the sleeve and having a length less than the a casing and including a cooling outlet for outputting carbon dioxide such that carbon dioxide entering the casing generates particles due to phase change, and the compressed gas in the casing is injected from the port of the casing through the outlet of the casing to the outside And a lubricating tube disposed in the outer tube and having a length smaller than the outer tube, and including a lubricating outlet for outputting the lubricant, so that the lubricant entering the outer tube is accompanied by the compressed gas in the outer tube The outlet is sprayed to the outside world. The nozzle device of claim 1, wherein the surrounding wall of the outer tube further has an inlet formed at the other end opposite to the outlet, a tubular section adjacent the inlet, and an outlet section adjacent the outlet The minimum pipe diameter of the pipe body of the outer pipe is greater than the sum of the pipe diameter of the cooling pipe and the pipe diameter of the lubricating pipe. The nozzle device according to claim 1, wherein the outer tube is a bellows tube which can be arbitrarily flexed and bent. The nozzle device of claim 1, wherein a distance is formed between a cooling outlet of the cooling tube and a port of the sleeve. The nozzle device of claim 4, wherein the pitch is between 20 mm and 40 mm. The nozzle device of claim 1, further comprising a valve seat, and the surrounding wall of the outer tube further has an inlet formed at the other end opposite to the outlet, the valve seat including a body having Two inlets, and an interface, the inlets are respectively passed through the cooling pipe and the lubricating pipe, and the interface is connected to the inlet of the outer pipe. The nozzle device of claim 6, wherein the valve seat further includes an attachment member disposed on the body and adapted to attach the valve seat to a processing machine. The nozzle device of claim 7, wherein the attachment member is a magnetic member adapted to adsorb the body to the processing machine. The nozzle device of claim 6, further comprising an inlet connected to the body of the valve seat through which the lubricating tube passes, and communicating with a source of compressed gas to allow compressed gas to enter the passage.