JPH0612814Y2 - Silencer - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a silencer containing an air freshener, and more specifically, to aroma contained in the exhaust air discharged from an air actuator such as an air cylinder, an air grinder, or a suction ejector. The present invention relates to a device for masking components.

[Conventional technology]

As is well known, various pneumatic circuits are used in all fields.

The one pneumatic circuit is shown in FIG. That is, a compressed air supply source 1 such as an air compressor, necessary auxiliary devices such as an air filter 2 and an oil supply device 3, and a direction switching valve 4.
And the like, and a circuit including an air cylinder 5 which is driven and controlled by a direction switching valve 4 thereof. Then, the exhaust of the air cylinder 5 is discharged to the atmosphere through the silencer M by the switching control of the direction switching valve 4.

The second pneumatic circuit example is shown in FIG. That is, this is an example including an air compressor 1, an air filter 2, a suction ejector 6, and a silencer M.

An example of the third pneumatic circuit is shown in FIG. That is, the air compressor 1, the air filter 2, the oil supplier 3,
The silencer M includes an air driver 13 and is connected to the rotating air driver 13. Various other pneumatic circuits are used.

In this case, an unpleasant odor is surely mixed in during the exhaust of the air actuator.

There are several possible causes for this, but one is when the cause is in the air compressor itself. For example, in a refueling type air compressor, the lubricating oil is oxidized by compression heat and sliding frictional heat to become oxidized oil, or solid substances such as carbon and tar are generated. Further, in the oil-free type air compressor, carbon particles are generated due to the sliding motion. These cause generation of odor.

Therefore, conventionally, a device for removing this odor has been proposed. A typical example in the past was to install a deodorizing device consisting of an odor adsorbent in the compressed air supply system of the pneumatic circuit, and this deodorant adsorbent has inherent selectivity for malodorous components. Therefore, since the odor cannot be completely removed, the present applicant has proposed a means for imparting an aroma component to the compressed air supply system, and applied for this first.

[Problems to be solved by the invention]

According to the above-mentioned prior art, since the fragrance component can be finally added to the exhaust gas, the surrounding environment using an air actuator such as an air cylinder can be masked with the fragrance, but there are some points to be improved. .

That is, one of them is often insufficient for masking a bad smell discharged from the air cylinder or the like at the end. More specifically, the oil is oxidized by sliding or rotating frictional heat of an air cylinder, an air driver or the like at the end to become oxidized oil, or solid substances such as carbon and tar are generated. In addition, dust and the like are generated by sliding and rotating motions. These create an unpleasant odor. However, since the above-mentioned conventional technique imparts the fragrance to the compressed air supply system,
The unpleasant odor emitted from the terminal equipment is not directly masked, and thus is often insufficient. In addition, what is desired to be masked is finally the ambient environment in which devices such as air cylinders are used, and it is most suitable to add an aroma component during the discharge of the exhaust of those devices,
As in the conventional case, the supply system had a poor masking efficiency.

Also, since the silencer is as compact and compact as possible,
It is difficult to improve the silencing ability.

〔Purpose〕

Therefore, the object of the present invention is to use an air cylinder driven by compressed air, an air grinder, an air driver,
An object of the present invention is to provide a means for directly applying an aroma component to exhaust gas discharged from a terminal air actuator such as a suction ejector so as to efficiently and satisfactorily mask the usage environment of the terminal air actuator.

Another object of the present invention is to provide a device in which the aroma imparting means is integrated with a muffler for the above-mentioned means, so that the whole can be made compact and compact.

Furthermore, it is another object of the present invention to provide a device that contributes at least to the silencing ability by the aroma imparting means.

[Means for solving problems]

In order to achieve the above object, the present invention has the following technical means. That is, this will be described with reference to the reference numerals in the accompanying drawings corresponding to the embodiments. In the present invention, a muffler M for discharging the exhaust of a pneumatic circuit to the atmosphere through the muffling material is used for the exhaust passing through the muffling material. On the other hand, the silencer is characterized in that a granular or lumpy aromatic agent A for imparting an aromatic component is incorporated so that the space in the aromatic agent A can be exhausted.

〔Example〕

 Next, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Taking the pneumatic circuit of FIG. 1 as an example, a detailed description will be given with reference to FIGS. 4 and 5. In the drawings, as described above, 1 is an air compressor, 2 is an air filter, 3 is an oil feeder, and 4 is a directional valve. Reference numeral 5 denotes an air cylinder, and M denotes a silencer connected to the direction switching valve 4.

One of the examples of the muffler M is shown in FIG. That is, the exhaust inflow port 7 and the outflow port 8 are formed, and the cylindrical silencing material 9 is interposed between them. The sound deadening material 9 is formed of perforated burnt gold, glass fiber, metal fiber or the like, and has a property of adhering oil content due to a change in the state of passing air for the purpose of silencing.

The above is an example of a conventionally known pneumatic circuit. In such a case, conventionally, the malodor generated in the air cylinder 5 is directly discharged to the atmosphere via the direction switching valve 4. That is, when the air used for the work of the air cylinder 5 is discharged from the muffler M by the switching control of the direction switching valve 4, it passes through the part of the muffling material 9, so that the oil mist generated in the air cylinder 5 is removed. Although part of it was adsorbed and removed, it was not completely perfect, and the oil mist was exhausted into the room where the air cylinder was used, resulting in the smell of oil inside the room. Especially, as shown in this example, the oil supply device 3 is attached to the air cylinder 5
It was even more difficult to improve the lubricity of the sliding motion.

Therefore, in the present invention, first, a storage space 10 for the fragrance A is formed on the downstream side of the sound deadening material 9, and more specifically, a wire mesh 11 is provided around the sound deadening material 9 with a predetermined space 10 therebetween. Space 1 above
0 contains the granular or lumpy aromatic agent A.

Although various components are considered as the components of the fragrance agent A, as described above, those referred to as fragrances, those referred to as so-called fragrances, and those referred to as masking agents are used. You can Fragrance or fragrance 1
For example, natural fragrances (animal fragrances such as incense, scent, scent, and incense, roots of plants, leaves and leaves,
Obtained by synthetic reactions such as oxidation and condensation from pure synthetic raw materials such as synthetic flavors such as extracted flavors and tar-based or petrochemical products, and plant flavors that have been distilled by steam distillation from flowers, flower buds, peels, seeds, etc. Etc.) can be used.

Examples of the above-mentioned vegetable natural flavors include citronella oil, camphor oil, lemon oil, lemongrass oil, orange oil,
Peppermint oil, eucalyptus oil, lavender oil, okocha oil, poad rose oil, bergamot oil, spearmint oil, lime oil, petitgrain oil, clove oil, petipa oil,
Ylang Ylang oil etc. are raised.

Further, as the synthetic fragrance, for example, benzene-based synthetic fragrance,
There are artificial incense and terpene-based synthetic fragrances.

Further, as the masking agent, there is a so-called typical wood vinegar solution to which the above-mentioned fragrance is added.

In the above, the non-solid perfume is impregnated into the granular or massive adsorbent.

In any case, what is important is that the quality of the fragrance must be appropriately and optimally selected according to the conditions of the environment in which the air cylinder 5 or the like is used, and those harmful to the human body are selectively removed.

In the case of such a configuration, the air used in the air cylinder 5 flows into the muffler M by the switching control of the direction switching valve 4. That is, the inlet 7 is at a pressure higher than atmospheric pressure.
Flows in through the muffler 9 and is muffled there. At this time, some of the odorous components that became finely mist-like are muffler 9.
However, most of it flows into the space between the following fragrances A. Here, the component of the fragrance A is mixed in the exhaust gas, and is discharged from the outlet 8 through the wire net 11 into the use environment.
At this time, the exhaust gas passing through the space in the fragrance A is decompressed,
The difference between the atmospheric pressure and the exhaust pressure is reduced to promote the silencing effect.

In this way, the fragrance component is directly added to the exhaust gas at the same time as the sound is silenced, and the masking can be efficiently performed. As a result, the surrounding environment is kept in a good scent state, and unpleasant exhaust noise and oil odor are not directly felt by people.

Thus, as in the example of FIG. 5, the fragrance material A may be disposed in the space 12 between the inflow port 7 and the sound deadening material 9.

Further, although the example of the air cylinder 5 is shown in the above example, it can be applied to the exhaust system of the pneumatic circuit as shown in FIGS. 2 and 3 in addition to this, as described above. It can be applied to all pneumatic circuits.

[Effect of device]

As described in detail above, according to the present invention, the exhaust noise of the exhaust gas discharged from the air cylinder, the air driver, the suction ejector, the air grinder, etc. can be silenced and the fragrance can be directly added to the exhaust gas. Therefore, the environment using such a pneumatic circuit can be masked well with the fragrance. More specifically, since the fragrance is directly applied to the exhaust itself, it is possible to efficiently and effectively eliminate the noise of the exhaust as well as the oil odor caused by the oil mist caused by the sliding or rotational friction of the air cylinder or the like. You can mask.

In addition, since the fragrance imparting means is integrated with the muffler, the device can be compact and compact.

Furthermore, since the granular or lumpy fragrance is present in the space through which the exhaust gas passes, it has the effect of promoting the sound deadening ability.

[Brief description of drawings]

The attached drawings show an embodiment of the present invention, and FIGS. 1, 2, and 3 are overall system diagrams showing examples of pneumatic circuits, FIGS. 4 and 5.
The figure is a cross-sectional view showing an example of a muffler each incorporating a fragrance. In the figure, M is a silencer and A is an aromatic.

Claims (3)

[Scope of utility model registration request] 1. A muffler (M) for discharging exhaust gas from a pneumatic circuit into the atmosphere through a muffler, which is in the form of particles or lumps for imparting an aromatic component to the exhaust gas passing through the muffler. A silencer characterized in that the air freshener (A) is built in so that the exhaust gas passes through the space inside the air freshener (A). 2. A utility model registration claim characterized in that the fragrance (A) is arranged on the downstream side of the silencing element (9).
The silencer described in paragraph. 3. A utility model registration claim characterized in that the fragrance (A) is arranged upstream of the muffling element (9).
The silencer described in paragraph.