TW201815479A - Nozzle device capable of ejecting carbon dioxide particles and lubricant - Google Patents

Abstract

A nozzle device includes an outer tube for delivering compressed gas, a sleeve tube disposed in the outer tube for delivering compressed gas, a lubricating tube disposed in the outer tube for delivering lubricant, and a cooling tube disposed in the sleeve tube for delivering carbon dioxide. The length of the cooling tube is smaller than the length of the sleeve tube, so that the carbon dioxide entering the sleeve tube can generate particles due to phase change, and is ejected together with the compressed gas of the sleeve tube to the outside. The length of the lubricating tube is less than the length of the outer tube so as to allow the lubricant entering the outer tube to be ejected from the outlet to the outside with the compressed gas in the outer tube. In this way, in the cutting process, not only can carbon dioxide particles and lubricants be ejected to achieve the effects of cooling, cleaning and lubrication, but also a sleeve type design can be used to converge the tubes to increase space efficiency and strengthen the structural stability, and then increase the ejection speed.

Description

Nozzle device

The invention relates to a nozzle device, in particular to a nozzle device capable of spraying carbon dioxide particles and a lubricant.

Referring to FIG. 1, taking the snowflake forming device 1 of the Republic of China Patent No. I377987 as an example, it mainly includes a snowflake forming chamber 11 for forming a carbon dioxide snowflake, and a snowflake forming chamber 11 connected to the snowflake forming chamber 11 and having a smaller pipe diameter than the snowflake forming. A sleeve 12 of the chamber 11. Based on this, 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 gradually reduced to increase the speed of the carbon dioxide snowflake spray to the outside, and the sleeve 12 is used to replace Design to control the particle size of carbon dioxide snowflakes.

However, since the sleeve 12 is a separate component, when the speed of the carbon dioxide snowflake is increased, the stability during connection must be considered so that there is no danger of loosening. Therefore, if the sleeve 12 is fixedly connected to the snowflake-forming cavity 11, the entire group is replaced when the particle size is to be controlled. If the sleeve 12 is sleeved with the snowflake-forming cavity 11, the speed of the snowflake will be affected. Limited to the aforementioned socketing method (in terms of patents, there are too many technical methods of fixing or socketing, and only possible methods are covered by fixing or socketing. Therefore, the description of the previous case is not limited to which one, But no matter which one, the disadvantages of the two methods of fixing or socketing have been mentioned before), but not too fast, otherwise it has the disadvantage of being easy to fall off.

Therefore, an object of the present invention is to provide a nozzle device capable of simultaneously achieving the effects of cooling, cleaning, and lubricating, and improving space efficiency and ejection speed.

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

The outer tube includes a surrounding wall defining a passage suitable for conveying compressed gas, the surrounding wall having an outlet formed at one end.

The sleeve is inserted into the outer pipe and includes a pipe wall defining a pipe suitable for conveying compressed gas, the pipe wall having a port formed at one end and adjacent to the outlet.

The cooling pipe passes through the casing and is shorter than the casing, and includes a cooling outlet for outputting carbon dioxide, so that the carbon dioxide entering the casing generates particles due to phase change, and the compressed gas in the casing Sprayed from the port of the sleeve to the outside through the outlet of the outer tube.

The lubricating tube is inserted in the outer tube, and is shorter than the outer tube, and includes a lubricating outlet for outputting lubricant, so that the lubricant entering the outer tube is sprayed from the outlet to the compressed gas in the outer tube. external.

The effect of the present invention is that in the cutting process, not only can the cooling, cleaning and lubricating effects be achieved by the sprayed carbon dioxide particles and lubricants, but also the sleeve-through design can be used to consolidate the pipeline to improve space efficiency, and Strengthen the structural stability and increase the ejection speed.

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

The valve seat 2 includes a body 21 and an attachment member 22 disposed on the body 21. The main body 21 has two inlets 211 and 212 and an interface 213. The attachment 22 is a magnetic element in this embodiment, and can be adsorbed on a processing machine 8 as shown in FIG. 5.

The outer tube 3 includes a surrounding wall 31 defining a channel 30. The passage 30 is suitable for conveying compressed gas. The surrounding wall 31 is a bellows tube in this embodiment, which can be flexed and bent arbitrarily, and has an outlet 311 formed at one end, an inlet 312 formed at the other end opposite to the outlet 311, and abutting the inlet 312 A pipe section 313 and an exit section 314 adjacent to the exit 311. The inlet 312 is connected to an interface 213 of the body 21 of the valve seat 2.

The sleeve 4 passes through the inlet 211 of the body of the valve seat 2 in the outer pipe 3 and includes a pipe wall 41 defining a pipe 40. The pipe 40 is suitable for conveying compressed gas. The material of the pipe wall 41 in this embodiment is a nylon straight pipe 225 PSI, which 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 pipe 3.

The cooling pipe 5 passes through the sleeve 4 and is shorter than the sleeve 4 and includes a cooling outlet 51 for outputting carbon dioxide. A distance L is formed between the cooling outlet 51 and the port 411 of the sleeve 4. In this embodiment, the distance L is within a range of 20 mm to 30 mm, and the size of the foregoing distance L can be changed by changing the depth of penetration into the sleeve 4.

The lubricating tube 6 is inserted into the outer tube 3 through an inlet 212 of the main body of the valve seat 2 and is shorter than the outer tube 3 and includes a lubricating outlet 61 for outputting lubricant.

The compressed gas pipe 7 is connected to the inlet 212 of the main body of the valve seat 2 and passes through the lubrication pipe 6 and communicates with the source of the compressed gas, so that the compressed gas enters the channel 30.

In addition, it is worth noting 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, when it is used, it is only necessary to use the attachment 22 of the valve seat 2 to adsorb the body 21 on the processing machine 8 to make the machine tool 8 The nozzle device of the invention is positioned.

When the compressed gas is injected into the channel 30 of the outer pipe 3 and the pipe 40 of the bushing 4, and the liquid carbon dioxide is injected into the cooling pipe 5, and the lubricant is injected into the lubrication pipe 6, the Carbon dioxide, due to the pressure difference caused by the larger volume, undergoes phase changes and generates particles, forming gas-solid coexisting carbon dioxide, and the carbon dioxide particles will roll larger and larger in the distance of the distance L, that is, the distance The shorter L is, the particles cannot be formed effectively. The longer the distance L is, the larger the particles are formed, but too long will cause the particles to be too large and block the port 411 of the casing 4. Then, the carbon dioxide particles will follow the casing. The compressed gas in 4 is rapidly injected from the port 411 of the sleeve 4 to the outside through the outlet 311 of the outer tube 3.

At the same time, the lubricant in the outer tube 3 is also injected with the compressed gas in the outer tube 3 and the aforementioned gaseous-solid carbon dioxide, and then injected to the outside through the outlet 311.

Since the compressed gas in the sleeve 4 and the outer tube 3 will form a great thrust to the carbon dioxide particles, during the cutting process, the carbon dioxide particles can be ejected to remove the dust on the surface of the workpiece to achieve The cooling and cleaning effect, and the lubricant sprayed out at the same time, can also achieve the lubrication effect. Thereby, the tool life of the processing machine 8 and the smoothness of the workpiece surface 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 there is compressed gas in the sleeve 4, which can be used as carbon dioxide to leave the cooling pipe 5 and accelerate the thrust toward the outlet 311 of the outer pipe 3, Another function is that the diameter of the pipe can be enlarged as a space for generating carbon dioxide particles.

2. The present invention can use a sleeve-through design to integrate cooling pipes 5 and lubricating pipes 6 to improve space efficiency, and strengthen the stability of the structure, and then can use compressed gas to increase the carbon dioxide particles under the situation of meeting the stability requirements. Squirting speed.

3. And only by changing the depth that the cooling pipe 5 penetrates into the sleeve 4, the size of the distance L can be changed, and the particle size of carbon dioxide can be controlled, which is not only easy to assemble, but also has low cost.

4. In addition, since the internal pressure in the channel 30 of the outer tube 3 is greater than the external pressure, the pressure difference between the channel 30 and the outside will not cause the problem of carbon dioxide particles or lubricant backflow.

However, the above are only examples of the present invention. When the scope of implementation of the present invention cannot be limited in this way, any simple equivalent changes and modifications made in accordance with the scope of the patent application and the content of the patent specification of the present invention are still Within the scope of the invention patent.

2‧‧‧Valve seat

21‧‧‧ Ontology

211‧‧‧Inlet

212‧‧‧Inlet

213‧‧‧Interface

22‧‧‧ Attached

3‧‧‧ Outer tube

30‧‧‧channel

31‧‧‧ around the wall

311‧‧‧Exit

312‧‧‧Entrance

313‧‧‧ tube body

314‧‧‧Exit

4‧‧‧ Casing

40‧‧‧pipe

41‧‧‧pipe wall

411‧‧‧Port

5‧‧‧ cooling pipe

51‧‧‧cooling outlet

6‧‧‧Lubrication tube

61‧‧‧Lubrication outlet

7‧‧‧ compressed gas tube

8‧‧‧tool machine

L‧‧‧ pitch

D‧‧‧minimum pipe diameter

D1‧‧‧ diameter

D2‧‧‧ diameter

Other features and effects of the present invention will be clearly presented in the embodiment with reference to the drawings, in which: FIG. 1 is a schematic cross-sectional view of the Republic of China Patent No. I377987; FIG. 2 is a front view illustrating 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 implementation A schematic front view of the example installed on a processing machine.

Claims (9)

A nozzle device includes: an outer tube including a surrounding wall defining a channel, the channel is suitable for conveying compressed gas, the surrounding wall has an outlet formed at one end; a sleeve is inserted in the outer tube Including a pipe wall defining a pipe suitable for conveying compressed gas, the pipe wall having a port formed at one end and adjacent to the outlet; a cooling pipe passing through the casing and having a length less than The casing includes a cooling outlet for outputting carbon dioxide, so that the 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 to the outside through the outlet of the outer tube And a lubricating tube inserted into the outer tube and having a length shorter than the outer tube, and including a lubricating outlet for outputting lubricant, so that the lubricant entering the outer tube is removed by the compressed gas in the outer tube from the The exit jets to the outside world. The nozzle device according to claim 1, wherein the surrounding wall of the outer pipe further has an inlet formed at the other end and opposite to the outlet, a tube section adjacent to the inlet, and an outlet section adjacent to the outlet The minimum pipe diameter of the pipe section of the outer pipe is greater than the sum of the pipe diameter of the cooling pipe and the pipe diameter of the lubrication pipe. The nozzle device according to claim 1, wherein the outer tube is a bellows tube and can be flexed and bent arbitrarily. The nozzle device according to claim 1, wherein a distance is formed between a cooling outlet of the cooling pipe and a port of the sleeve. The nozzle device according to claim 4, wherein the pitch is within a range of 20 mm to 40 mm. The nozzle device according to claim 1, further comprising a valve seat, and the surrounding wall of the outer pipe further has an inlet formed at the other end and opposite to the outlet, the valve seat including a body, the body having Two inlets and one interface are provided for the cooling pipe and the lubrication pipe to pass through respectively, and the interface is connected to the outer pipe inlet. The nozzle device according to claim 6, wherein the valve seat further includes an attachment member, the attachment member is disposed on the body, and is adapted to attach the valve seat to a processing machine. The nozzle device according to claim 7, wherein the attachment is a magnetic element, and the body is adapted to be adsorbed on the processing machine. The nozzle device according to claim 6, further comprising an inlet connected to the body of the valve seat through which the lubrication tube passes, and is in communication with the source of the compressed gas, so that the compressed gas enters the channel.