JPS594411A - Dust collector - Google Patents

Abstract

PURPOSE:To prevent filter elements from sticking to each other, and to easily remove dust by vibrating springs to vibrate a filter, by installing the filter elements in a state stretched by the springs. CONSTITUTION:The dust contained in an air sucked by a fan 3 is collected and filtered by respective filter elements 6A, and the clean air is exhausted from a delivery port 5. When the element 6A is clogged, a dust removing lever 7A is moved. The elements 6A are installed in a state stretched in the direction of a dust gathering chamber 9, and dust removing pieces 8A are engaged with springs 11 respectively; then the springs 11 are vibrated through the pieces 8A by operating the lever 7A, and all the elements 6A are also vibrated, thus even fine dust sticking onto the elements 6A is removed. Further, the sticking of the elements 6A to each other caused by a wind pressure is prevented by the tension of spring 11.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a dust collector, and is used to suction and collect dust in order to protect the health of dust workers. This invention relates to a dust collector with improved suction performance.

Dust collectors have large external dimensions that are disproportionate to their performance.
Accordingly, it was taken for granted that a large amount of floor space would have to be taken up for installation.
Users have traditionally had the impression that dust collectors are bulky. ).

The size of a dust collector is determined by the fan and filter, so if the performance is the same, the size of the main unit must be approximately the same. However, in addition to improving its performance, there is a need to make it more compact.

When the dust collector sucks and collects dust, the dust collector (
The suction power (air volume) gradually decreases as the amount of dust increases due to clogging of the filter, etc., but there are various dust removal methods to recover from this.

The dust removal methods of conventional dust collectors can be broadly classified as follows.

(1) A method of applying vibration to the filter to remove adhering dust by moving the filter directly with the operation lever, dust removal lever, etc.

(2) A method of removing adhering dust using air force, such as backwashing.

First, the dust collector according to the former (1) has the advantage of being inexpensive and is also disclosed in Japanese Patent Application Laid-Open No. 52-28069. This will be explained with reference to Figure 3.

First, FIG. 1 is a vertical sectional view of a dust collector equipped with a conventional dust collection device, and FIG. 2 is an exploded perspective view of a part of the filter related to the dust collection section.

In the figure, 1 is the main body of the dust collector, 2 is the electric motor, 3 is a fan such as a turbo fan, 4 is the fan chamber, 5 is the discharge port, and 6
6-1.6-1 is a filter element, 6-2 is a filter cage, 7 is a dust removal lever related to the dust removal part, 8 is a dust remover, and 9 stores dust. A storage chamber related to the storage section, 10 is a suction port.

Note that the filter cage 6-2, which maintains the shape of the filter element 6-1, is not shown in FIG.

That is, by moving the dust removal lever 7 in the direction shown by the arrow, the dust adhering to each filter element 6-1 is moved by the dust remover 8 provided on the dust removal lever 7, and the dust adhering to the filter element 6-1 is removed. 6-1 has a structure in which dust is removed by being oscillated.

However, with this method, the dust removal effect varies greatly depending on how the dust removal lever 7 is operated, and the filter surface of the filter 6 is dusted off by the dust remover 8, resulting in wear.

Furthermore, since the lower part of the filter element 6-1 is in a free state, there is a phenomenon in which the filter elements 6-1 stick together due to wind pressure, making it impossible to use the filter surface of the filter 6 effectively. There was also the problem of clogging.
- Also, FIG. 3 is a longitudinal cross-sectional view of a conventional dust collector, which similarly relates to the dust removal method according to (1) above.

The same reference numerals as in Fig. 1 indicate the same parts, and in this configuration, the structure in which the middle part of the filter is swung by the dust removal lever is clearly shown, and the air flow is also shown. It's dust.

That is, in the same way as shown in FIG.
The filter 6 is vibrated to shake off the dust stuck in the filter 6.

Various methods have been used, including manual methods and automatic methods using electric motors.

As a result of the dust removal operation as described above, the reduction in the suction air volume is recovered and the suction force is increased, as shown in FIG. 12, which will be described later. Normally, a dust collector is used by repeating this dust removal operation at regular intervals.

As mentioned earlier, the main reason why the suction air volume decreases as the amount of suction dust increases is that the suction dust adheres to the filter 6, but one factor that cannot be overlooked is that after dust removal, When the dust collector is restarted after dust removal, the dust D stored in the storage chamber 9, which is a dust box, is affected by the internal airflow and may be scattered again.

As shown in the figure, the air sucked from the suction port 10 becomes a turbulent airflow as shown by the arrow, and the dust once stored is
But it is something that soars.

This re-scattering of dust has the problem that, at the same time as it re-adhering to the filter 6, the volume of the storage chamber 9 cannot be utilized effectively (as shown in the figure, the dust D is piled up).

Conventionally, as a means to prevent this dust re-scattering, (a) the dimension between the filter 6 and the storage chamber 9 is increased (the distance is increased to make it larger), and the suction port 10 is
(b) to reduce the influence of turbulence flowing in from the
A method of providing a fixed partition plate between the filter 6 and the storage chamber 10 has been used.

However, in (a) above, the main body size of the dust collector becomes large, which is uneconomical, and in (b),
The problem was that dust adhered to the partition plate, making it difficult to maintain.

Next, returning to the previous point, the latter method (2) of dust collection, which uses the exhaust air volume of a dust collector, has a weak pressure and is not very effective in removing dust. There are also systems that use a separate device such as a compressor to utilize high-pressure headwind, but this has the drawbacks of a complicated structure and a disadvantage in terms of cost. It is something.

In order to solve the above-mentioned problems, the present invention aims to prevent filter elements from sticking to each other, and also to vibrate the filter to remove fine particles that are clogged in the filter's pores. Remove dust.

The purpose is to provide a dust collector that can

Another object of the present invention is to provide an efficient small-sized dust collector that eliminates the disadvantages and disadvantages of conventional dust collectors, improves the reduction in suction air volume, and improves efficiency.

The structure of the first invention related to the dust collector of the present invention includes a fan driven by an electric motor, a dust collection section that collects dust sucked by the fan, and a dust collection duct from the dust collection section. In a dust collector equipped with a dust removal section for removing the dust and a storage section for storing the removed dust, there is a space between the dust collection section and the collecting section below the dust collection section. i
In addition to tightening the eel, a dust removing section is provided which vibrates the elastic member and transmits the vibration to the dust collecting section.

More specifically, as a simple and efficient method for removing dust attached to a filter, tension is applied to the filter using a spring, and by directly repelling the spring, the entire filter is effectively applied. It was designed to make you shake.

A similar configuration of the second invention includes a fan driven by an electric motor, a dust collection section that collects dust sucked by the fan, and a filter for removing the collected dust from the dust collection section. In a dust collector equipped with a dust collection section and a storage section for storing the removed dust, there is provided a mechanism for applying tension to the dust collection section between the dust collection section and the storage section below the dust collection section. An elastic member stretched over the space is disposed through a partition having an opening, and a dust removal section is provided in which the elastic member is added to transmit vibrations to the dust collection section and the partition. It is configured as follows.

More specifically, a partition part related to the dust re-scattering prevention part is provided between the filter and the storage chamber, this re-scattering prevention part and a part of the filter are connected by an elastic member, and a part of the filter is At the same time, in order to prevent the detached dust from adhering to or accumulating on the re-scattering prevention section, vibration is applied to the re-scattering prevention section to prevent the dust stored in the storage chamber from re-scattering, and the suction This is a dust collector with stable air volume.

Next, each embodiment according to the present invention will be described with reference to each figure.

First, FIG. 4 is a vertical cross-sectional view of a dust collector according to an embodiment of the present invention, and FIG. 5 is an enlarged perspective view of the dust removal device part.
FIG. 6 is a perspective view of the dust removal lever, and FIG. 7 is a characteristic diagram comparing the filter clogging performance and dust removal effect with that of a conventional example.

In the figure, the same symbols as in Figure 1 indicate equivalent parts.
IA is the main body of the dust collector, 6A is the filter related to the dust collection part, 6A-1, 6A-1 is the filter element, 7A
7A-1 is a dust removal lever for the dust removal part; 7A-1 is a dust removal lever guide; 8A is a dust remover such as a protrusion or claw; 11 is a spring for the elastic member; and 12 is a support part.

That is, a suction port 10 that sucks dust, a filter 6A having a plurality of filter elements 6A-1 that collects fine dust, a dust removal lever 7A that removes dust from the filter 6A, a dust removal device 8A that vibrates a spring 11, and a suction force. It is formed of a fan 3 that generates air flow, an electric motor 2 that is directly connected to the fan 3, a discharge port 5 that exhausts clean air, and the like. Filter elm to) 6
The spring 11 is stretched so as to apply tension to A-1,
It is configured to be supported by a support portion 12 provided on the main body IA, and to vibrate the spring 11 to transmit the vibration to the filter 6A.

According to the above, the air sucked from the suction port 10 by the fan 3 flows along the path indicated by the dashed arrow in the figure.

The fine dust sucked through the suction port 10 is collected and filtered by each filter element 6A-1, and the clean air is exhausted from the discharge port 5. If suction is carried out for a long period of time, clogging occurs and the suction power is significantly reduced, making it impossible to suction dust. Therefore, in order to restore the suction force, by moving the dust removal lever 7A in the direction of the arrow, the dust removal element 8A provided on the dust removal lever 7A applies the force of the spring 11 that tensions each filter element 6A-1. Let it shake. As a result, it is possible to remove even the minute dust that vibrates throughout each filter Niremen) 6A, -1, so the suction power can be greatly restored, and
This has the advantage that the operating speed of the dust removal lever 7A has little to do with the dust removal effect, and the dust removal effect is constant (
In this regard, in the past, since each separated filter element 6-1 was moved by a dust remover 8 as shown in FIG. 1, the dust removal effect varied greatly depending on the operation speed of the dust removal lever 7. ).

In addition, in the above, since the spring 11 is repelled by the dust remover 8A, there is no wear on the filter medium surface of the filter 6A, υ,
Filter life can also be significantly improved.

Furthermore, since the lower part of each filter element 6A-1 is pulled by a spring 11, sticking phenomenon due to wind pressure can be prevented, and the filter medium surface of the filter 6A is
Since it can be used effectively at 0%, it also has the effect of greatly improving the filter clogging performance (in this regard, conventionally, filter elements 6-
1) Due to the pecking phenomenon, only about 60 to 80% of the materials could be used effectively. ).

The comparison between the results of the study on the clogging performance and dust removal effect of these filters and the conventional ones is shown in FIG.

In FIG. 7, the solid line indicates the method according to the present embodiment, and the broken line indicates the method according to the conventional example, dust removal rate = bfi/a
It is X100.

As can be seen from the comparison in the figure, in terms of filter clogging performance, the amount of dust suction is improved by L (t, IJ liter) in one cycle, and in terms of dust removal effect, the amount of dust suction is increased by H (m3/mm) after the second cycle. The greater the power (air volume) and the greater the amount of dust suction, the more effective the effect will be.

In the above embodiment, the support part 12 is fixed to the frame of the main body IA, but it is not necessary to fix it to the frame if a heavy iron bar or the like is used. It is something.

Further, the configuration of 1, z+, and %s can be configured such that, for example, a large number of funnel-shaped bodies are suspended from a flat plate, and the filter can also be configured as a single filter.

According to the present embodiment described above, the following effects can be expected in summary.

(1) Since the entire filter is uniformly vibrated, the dust removal effect is great.

(2) Since the filter elements can be prevented from sticking together, the clogging tb performance is improved and the size can be reduced accordingly.

(3) Since the surface of the filter media is not directly exposed to dust by the dust remover, its lifespan is greatly improved.

(4) Even if there are variations in the operation speed of the dust removal lever,
The dust removal effect is almost constant.

Next, FIG. 8 is a vertical cross-sectional view of a dust collector according to another embodiment of the present invention, FIG. 9 is an enlarged perspective view of the partition portion thereof, and FIG. 10 is a dust removal device thereof. Enlarged perspective view of part, 1st
Figure 1 is a perspective view of the dust removal lever, and Figure 12 is an explanatory diagram of its effect.

In the figure, the same reference numerals as in the previous figures 1 and 4 indicate the same parts,
IB is the main body of the dust collector, 4B is the fan chamber, 6B is the filter for the dust collection part, 6'B-1 is the filter element, 7B is the dust removal lever for the dust removal part, 8B is the protrusion or claw, etc. Dust remover, 13 is a partition plate related to the partition part, 1
3-1 is a partition member provided on the partition plate 13 and has a constant slope, 14 is a spring mounting hole, 15 is a ventilation hole related to the opening, and 16 is a spring hook portion.

Therefore, in this embodiment, at least the filter 6B is located between the filter 6B and the storage chamber 9 below the filter 6B.
A spring 11 stretched so as to apply tension to the partition plate 13 having a ventilation hole 15 is disposed on the partition plate 13, and
The spring 11 is vibrated to connect the filter 6B and the partition plate 13.
This embodiment differs from the previous embodiment in that it is configured to include a dust removal lever 7B that transmits vibrations to and from the dust removal lever 7B.

That is, in this embodiment, the fan 3 directly connected to the electric motor 2 creates a negative pressure inside the main body 1 of the dust collector.
Inlet 10 through a hood and duct (not shown)
The dust is sucked together with the air, only the dust is collected by the filter 6B, and the clean air is sent from the discharge port 5 to the main body 1.
It is designed to be discharged to the outside.

And each filter element 6B of the filter 6B
-1 and the partition plate 13 are connected with tension by a spring 11.

The partition plate 13 has a shape as shown in FIG. 9, and has a plurality of sloped partition members 13-1 and a plurality of ventilation holes 15 provided at the bottom, and is further equipped with a spring 11. It has a spring mounting hole 14 for this purpose, and is installed between the filter 6B and the storage chamber 9.

Further, the filter element 6B-1 is also provided with a spring hook portion 16 for mounting the spring 11 thereon.

As described above, the method for removing dust attached to the filter 6B is to reciprocate the dust removal lever 7B having a plurality of dust removers 8B shown in FIG. The large-amplitude vibration of the spring 11 is transmitted to the filter 6B, thereby causing the dust to separate and fall.

The fallen dust falls along the sloped partition member 13-1 of the partition plate 13, and enters the ventilation hole 15 leading to the storage chamber 9.
The dust falls into the storage chamber 9 and is stored like the dust D shown in the figure.

In such a case, it is conceivable that particularly adhesive dust gradually accumulates on the wall surface of the partition member 13-1 having an inclination.
The vibration of the partition member 13-1 having the slope of the partition plate 13
Since the dust is also transmitted to the ventilation hole 15, the dust is smoothly introduced into the ventilation hole 15.

This partition plate 13 is not a rigid body, but is preferably made of a material that easily transmits vibrations, such as a thin steel plate or plastic. It doesn't have to be that way. That is, as long as the partition plate 13 has a certain amount of weight, it may be simply suspended freely by the springs 11.

As described above, after the dust removal operation is completed, restart the dust collector,
Even if turbulent air flows in from the suction port 10, the partition plate 13
It was confirmed through experiments that the dust D stored in the storage chamber 9 would not be scattered again.

Since there is no dust re-scattering, as shown in Figure 12, compared to the conventional method, there is an effect such as an increase in the suction air volume corresponding to the shaded area E, and there is less reduction in air volume due to suction dust, making it more efficient. This makes it possible to make a good dust collector.

Since the shredded dust D stored in the storage chamber 9 is also deposited flatly, the capacity of the storage chamber 9 related to the dust box can be used effectively, and the maintenance effect of reducing the number of times dust D is disposed of can also be expected. Therefore, the height of the storage chamber 9, and by extension the overall height, can be reduced, and miniaturization can be expected.

Note that even in the above embodiments, the filter can be a single filter.

According to this embodiment, in addition to producing the same effects as the previous embodiment, it is possible to solve the reduction in suction air volume due to dust re-scattering, for which there was no effective solution in the past, with an inexpensive and simple configuration. The present embodiment has an extremely important advantage in that as the dust collector is used for a long time, the effect increases compared to the conventional method.

Furthermore, when selecting a dust collector model, it is possible to use a fan with power below the -run level, which contributes to downsizing and energy saving, and also improves maintainability, which has an extremely large effect.

Furthermore, since the stored dust is deposited flatly, the volume of the storage chamber can be reduced, which also contributes to miniaturization.

In addition to the above, according to the present invention.

It is possible to provide a dust collector that is smaller in size and has improved suction performance, and can be said to be an invention with excellent practical effects.

[Brief explanation of the drawing]

Figure 1 is a cross-sectional view of a dust collector equipped with a conventional dust collector, Figure 2 is an exploded perspective view of a part of the filter, and Figure 3 is a vertical cross-sectional view of a conventional dust collector. , FIG. 4 is a vertical cross-sectional view of a dust collector according to an embodiment of the present invention, FIG. 5 is an enlarged perspective view of the dust removal device portion, and FIG. 6 is a perspective view of the dust removal lever. Fig. 7 is a characteristic diagram comparing the filter clogging performance and dust removal effect with that of a conventional example, and Fig. 8 is a vertical sectional view of a dust collector according to another embodiment of the present invention. Figure 9 is an enlarged perspective view of the partition part, Figure 10 is an enlarged perspective view of the dust removal device part, Figure 11 is a perspective view of the dust removal lever, and Figure 12 is an explanatory diagram of its effect. be. IA, IB...Body, 2...Electric motor, 3...Fan, 6A, 6B...Filter, 6A-1, 6B-1
...Filter element, 7A, 7B...Dust removal lever, 8A, 8B...Dust remover, 9...Storage room,
DESCRIPTION OF SYMBOLS 11... Spring, 13... Partition plate, 13-1... Partition member, 15... Ventilation hole. Agent Patent attorney Kosaku Fukuda (and 1 other person) Bud L Eye S Hou 2 Eye J #, A Eye 4 Country $ Kaya 5 Hard 12 δA Iha Ho 9 Figure 411 Hard 7 δ Kaya I 2 Eye J711 Morning irrigation amount -

Claims (1)

[Claims] 1. A fan driven by an electric motor, a dust collection section for collecting dust sucked by the fan, and a dust removal section for removing collected dust from the dust collection section; In a dust collector equipped with a storage section for storing the removed dust, a tension is provided between the dust collection section and the storage section below the dust collection section so as to apply tension to the collection section. 1. A dust collector, characterized in that the dust collector is provided with an elastic member and a dust removing section configured to vibrate the elastic member and transmit the vibration to the dust collecting section. 2. In the product described in claim 1, the dust collecting section is a bag filter formed of a plurality of filter elements, and an elastic member such as a spring is connected to the lower part of each filter element to tension it. A dust collector was installed. 3. In the product described in claim 1, the dust removal part is a dust removal lever configured to directly contact and flip an elastic member stretched over the dust collection part. A dust collector. 4. The dust collector according to claim 3, wherein the dust removal lever is provided with a protrusion or pawl for a dust removal device. 5. A fan that is driven by an electric motor, a dust collection section that collects the dust sucked in by this fan, a dust removal section that removes the collected dust from this dust collection section, and the dust removal section. In a dust collector equipped with a storage section for storing collected dust, an elastic member is stretched between the dust collection section and a storage section below the dust collection section so as to apply tension to the collection section. is arranged in a partition having an opening, and a dust removal section is provided which excites the elastic member and transmits the vibration to the dust collecting section and the partition. Dust collector. 6. In the item described in claim 5, the partition part is formed by a plurality of members having a constant slope, and is provided with a hole or a gap related to the opening leading to the storage part. Dust collector. 7. In the product described in claim 5, the dust collecting section is a bag filter formed of a plurality of filter elements, and each filter element and a partition section at the bottom thereof are formed by an elastic member such as a spring. A dust collector that is connected to each other. 8. In the product described in claim 5, the dust removal part is configured to directly abut and repel an elastic member stretched between the dust collection part and the partition part. A dust collector with a dust removal lever. 9. The dust collector according to claim 8, wherein the dust removal lever is provided with a protrusion or a pawl for a dust removal device.