JP2017007072A - Separation and dust suction device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide means, safe for a human body, being environment-friendly and efficiently tearing off a coating film, particularly, the coating film including a component undesirable for the human body and an environment such as a lead component.SOLUTION: A separation and dust suction device comprises a compressor, a receiver tank, a vacuum suction device and a separation device, and is used so that the compressor is connected to the receiver tank and the vacuum suction device, and the receiver tank is connected to the separation device via an air filter, and the vacuum suction device is connected to the separation device, and compressed air from the compressor is sent to the separation device via the receiver tank and the air filter, and the compressed air from the compressor is sent to the vacuum suction device as a driving source of the separation device, and decompression is caused, and dust of a separation object generated by separating by the separation device is sucked to the vacuum suction device by decompression caused by the vacuum suction device.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a peeling and dust suction device that peels off an object to be peeled, such as a coating film applied to a wall or the like, and sucks dust from the peeled material generated by the peeling.

The painted film may be peeled off due to repainting of walls of buildings. In this case, a physical method or a chemical method may be used.
Examples of physical methods include a method of scraping the coating film on the wall surface, a method of breaking and peeling the coating film, and a method of grinding the coating film, and a method of spraying high-pressure hot water as described in Patent Document 1. It is done.
Further, as a chemical method, a method using a release agent can be mentioned. Examples of the release agent include an organic solvent and a release agent using methylene chloride.

JP 09-170337 A

In the method of scraping off the coating film on the wall surface, hitting the coating film to remove it, or grinding the coating film, dust is likely to be generated. An already-painted coating film may contain a lead component, depending on the age of painting. In this case, the generated dust contains a lead component, which may be harmful to the worker. Further, the wall surface that is the base of the coating film may be scraped off, and the base may need to be maintained before repainting.
Moreover, in the method of spraying high-pressure hot water, there may be a case where the coating film remains unpeeled, and there is a problem that is not necessarily efficient in view of the trouble of peeling treatment of the remaining part. In addition, since the peeled coating film flows along with the water after use, problems such as the environment may occur when the lead component or the like is contained in the coating film.
Furthermore, when the above chemical method is used, environmental problems may occur.

  Therefore, the object of the present invention is to provide a means for peeling off a coating film that is safe for the human body, friendly to the environment, and efficiently contains a coating film, particularly a coating film containing components that are not preferable to the human body and the environment, such as lead components. To do.

  The present invention includes a compressor, a receiver tank, a vacuum suction device, and a peeling device, and the compressor is connected to the receiver tank and the vacuum suction device, and the receiver tank is connected to the peeling device via an air filter. The vacuum suction device is connected to the peeling device, and the compressed air from the compressor is sent to the peeling device via the receiver tank and the air filter to drive the peeling device. The compressed air from the compressor is sent to the vacuum suction device to cause decompression, and the compressed air from the compressor drives the peeling device to peel off the peeling target, and the vacuum suction Due to the reduced pressure generated by the device, the dust of the peeled material generated by the peeling By using the peeling and dust suction device for sucking the vacuum suction device it is had to solve the above problems.

Since the peeling and dust suction device according to the present invention has the above-described configuration, the peeling object can be peeled off by the peeling device, and dust of the peeled material generated by peeling can be sucked into the vacuum suction device, and the dust is diffused. Can be prevented.
Furthermore, since it is possible to prevent the dust on the peeled material from diffusing, there is no need to worry about dust generation when peeling with a peeling device. It becomes possible to adjust, and it becomes possible to perform peeling work while maintaining the foundation of the coating film.

Schematic diagram using the peeling and dust suction device according to the present invention Schematic showing the mechanism of the vacuum suction device used in this invention (A) The perspective view which shows the example of the peeling apparatus used by this invention, (b) The side view of (a), The bottom view of (c) (a) (A) (b) (c) The perspective view which shows the example of the blade part of the peeling apparatus used by this invention (A) The front view which shows the other example of the peeling apparatus used by this invention, (b) The side view of (a), The perspective view which shows the example of the adapter used by (c) (a) (A) (b) The schematic diagram which shows the relationship of piping of the peeling and dust suction apparatus concerning this invention

  The present invention relates to a peeling and dust suction device that peels off an object to be peeled off such as a coating film disposed on the surface of a support material such as a wall, and sucks dust from the peeled material generated at the time of peeling.

  As shown in FIG. 1, the peeling and dust suction device is a device having a compressor 11, a receiver tank 12, a vacuum suction device 13, and a peeling device 14.

  The compressor 11 is a machine that produces compressed air. The compressor 11 is connected to the receiver tank 12 and the vacuum suction device 13, and the compressed air produced by the compressor 11 passes through the receiver tank 12 and an air filter 15 described later, and then the peeling device. 14 is used as a driving source for the peeling device 14, and is supplied to the vacuum suction device 13 to cause decompression.

The receiver tank 12 is a tank that stores the compressed air supplied from the compressor 11, and by storing the compressed air, dust, moisture, and the like contained in the compressed air can be separated.
The receiver tank 12 is connected to the peeling device 14 via an air filter 15. At this time, the compressed air stored in the receiver tank 12 can separate and remove dust, moisture and the like that have not been separated in the receiver tank 12 by the air filter 15.

The vacuum suction device 13 is a device that generates a reduced pressure state. This mechanism will be described with reference to FIG. Note that FIG. 2 is a diagram showing a mechanism for generating a reduced pressure state, and does not show a structure for holding each member, a structure for sealing the inside of the vacuum suction device 13, and the like. About these, a known structure is employable.
First, the compressed air P from the compressor 11 is introduced into the nozzle 22 in the ejector portion 21 disposed inside the upper housing portion 24a. Then, compressed air is blown out from the nozzle 22 toward the diffuser 23. And it is made to discharge | release outside from the opening part 25 of the upper housing part 24a of the vacuum suction apparatus 13. FIG.

  At this time, the air inside the ejector portion 21 is pulled by the air flow from the nozzle 22 toward the diffuser 23 and is discharged to the outside from the diffuser 23 through the upper housing portion 24a. For this reason, the inside of the ejector portion 21 is in a reduced pressure state, and the inside of the lower housing portion 24b connected to the ejector portion 21 via the connection port 28 is also in a reduced pressure state. For this reason, external air or the like can be sucked into the lower housing portion 24b through the suction port 26 provided in the lower housing portion 24b. For this reason, a peeled object such as a coating film peeled off by the peeling device 14 and its dust are put inside the lower housing portion 24b of the vacuum suction device 13 by the reduced pressure generated in the vacuum suction device 13. Sucked. For this reason, it is necessary to separate the dust in the vacuum suction device 13.

Therefore, at least one filter for separating the separation object of the separation object and the dust is provided inside the lower housing portion 24b. What is sucked in includes from a large particle size to a minute one such as a peeled material itself or a fine powdery dust, so that separation with one filter may be inefficient. In particular, when removing minute particles, if only one filter is used, clogging is likely to occur, and the frequency of filter replacement often increases. For this reason, it is preferable to use at least two types of filters, a filter that removes large particles and a filter that removes fine powdery fine particles. In addition, it is preferable to interpose a filter that can remove particles in the meantime, because the frequency of replacement of the filter that removes fine particles can be reduced. For this reason, it is preferable to use two or more filters, and it is preferable to use three or more filters. Moreover, even if there are too many filters, since it takes time, 10 or less is good and 5 or less is preferable.
Hereinafter, a case where three filters are arranged as shown in FIG. 2 will be described.

  These three filters are provided in series according to the air flow from the suction port 26 toward the ejector unit 21 generated by the above-described decompression of the ejector unit 21. First, a bag-like first filter 27a that is directly introduced into the inside from the suction port 26 is disposed, and then, a second filter 27b is disposed at a position through which the airflow from the first filter 27a passes. And the 3rd filter 27c is distribute | arranged to the position where the airflow which came out of the 2nd filter 27b passes.

Since the first filter 27a is directly introduced into the inside from the suction port 26, the first filter 27a includes the peeled material itself and particles having a large particle size. For this reason, the first filter 27a may be a coarse filter, such as a filter that removes 20 μm to 50 μm or more. Thereby, the removed peeled material itself and the particles having a large particle diameter are accumulated inside the bag-shaped first filter 27a.
Moreover, since the 3rd filter 27c is the last filter, the airflow which passed this filter is discharge | released outside. For this reason, the fineness of the eyes according to the target environmental standard is required. An example of such a filter is a filter that removes particles having a size of 2 μm or more. In particular, when a HEPA filter that captures 99.97% or more of dust having a size of 0.3 μm or more is used, the dust in the airflow emitted to the outside is used. Can be almost eliminated.
Further, the second filter 27b may be any filter having a roughness between the first filter 27a and the third filter 27c, such as the particle size of the peeled-off dust. It may be selected as appropriate according to the characteristics.

The said peeling apparatus 14 is an apparatus which peels the peeling target object distribute | arranged on the support material surface from the said support material surface. As this apparatus, as shown in FIGS. 3A to 3C, the blade 30 is rotated to strike, grind, or scrape the surface of the support material, thereby removing the peeling object. The rotary peeling device 14a for peeling, or the vibration type for peeling the peeling object by reciprocating the blade 41 and hitting the surface of the support material as shown in FIGS. 5 (a) to 5 (b). Examples thereof include a peeling device 14b.
The rotation of the blade portion 30 of the rotary peeling device 14a and the reciprocation of the blade portion 41 of the vibration peeling device 14b may be caused by compressed air sent from the receiver tank 12 via the air filter 15. it can.

  As shown in FIGS. 3B to 3C, in the rotary peeling device 14a, the blade portion 30 other than the portion where the blade portion 30 and the peeling object are in contact is covered with a cover 31a. Prevents dust generated by the peeling operation from scattering.

  As the blade constituting the blade portion 30, a flap blade 32 as shown in FIG. 4A and a cylindrical file whose peripheral surface is formed of a file such as a paper file as shown in FIG. 4B. Examples thereof include a belt 33 and a metal wear body 34 provided with a convex 34c as shown in FIG.

As shown in FIG. 4A, the flap blade 32 is made of a material having flexibility and strength, such as leather, on a rotation shaft 32a, and a plurality of support members 32b formed in an annular shape are respectively attached to the rotation shaft 32a. Is a blade in which a pin 32c made of a hard material such as metal is attached to a portion of the support member 32b located on the outermost periphery when rotated about the center.
When the flap blade 32 is rotated, the pin 32c located on the outermost periphery thereof directly strikes the object to be peeled disposed on the surface of the support material, thereby making it possible to peel the object to be peeled off.

  As shown in FIG. 4B, the file belt 33 has a file 33b such as a paper file disposed on the outer peripheral surface of a cylindrical rotating shaft 33a. By rotating the file belt 33, the object to be peeled disposed on the surface of the support material is ground with the file on the outer peripheral surface, and thus the object to be peeled can be peeled off.

Although the metal wear body 34 is not shown, the metal rotating body 34a provided with a metal convex on the outer peripheral surface of the cylindrical rotating shaft 34a, or a cylindrical rotating shaft 34a as shown in FIG. A plurality of second rotation shafts 34b parallel to each other are provided around the rotation shaft 34a in an annular shape so that the axial direction of the second rotation shaft 34b is parallel to the axial direction of the rotation shaft 34a. A metal convex 34c is provided on the outer peripheral surface of 34b. By rotating the metal wear body 34, the object to be peeled is scraped or hit with the convex object, whereby the object to be peeled can be peeled off.
In addition, as this convex object, what processed the metal plate into the uneven | corrugated shape, what formed the needle thread in the outer peripheral surface of a rotating shaft as shown in FIG.4 (c), etc. are mention | raise | lifted.

By the way, the blade portion 30 is attached to a cover side plate 31b which is a side surface of the cover 31a on the side where the air motor 35a is attached. Specifically, an adapter is provided on the cover side plate 31b, and a rotation shaft of the air motor and a rotation shaft (32a, 33a, 34a, etc.) of the blade portion 30 are attached thereto. Thereby, the rotating shaft of the air motor 35a and the rotating shaft (32a, 33a, 34a, etc.) of the blade part 30 are connected.
As shown in FIG. 3A, the compressed air from the receiver tank 12 is sent to the air motor 35a via the compressed air port 35b, thereby driving the air motor 35a. And a rotating shaft rotates by this, the rotating shaft (32a, 33a, 34a etc.) of the said blade part 30 can be rotated via the said adapter, and the said blade part 30 rotates.

  By the way, the rotary peeling device 14a is provided with a suction port 36 as shown in FIG. The suction port 36 is connected to the suction port 26 of the vacuum suction device 13 through a pipe such as a hose. The peeled material and dust generated in the rotary peeling device 14a are directed from the suction port 36 into the first filter 27a of the lower housing portion 24b of the vacuum suction device 13 through the hose and the suction port 26. Aspirated.

  The vibration peeling device 14 b uses a large number of needles 41 a as the blade portion 41. Specifically, as shown in FIG. 5B, a large number of needles 41a are arranged inside the tip portion 44, and the air motor is driven by compressed air introduced from the compressed air port 42 shown in FIG. By driving 43, a reciprocating motion is generated in which the needle 41a moves back and forth. Since this needle 41a repeats reciprocating motion in a state where it enters and exits the distal end surface of the distal end portion 44 of the vibration type peeling device 14b, the separation target object can be obtained by applying the distal end portion 44 of the vibration type peeling device 14b to the separation target object. Can be peeled off.

At this time, an adapter 46 having various shapes as shown in FIG. 5C can be attached to the distal end portion 44 of the vibration peeling device 14b. By selecting the shape of the adapter 46 according to the structure of the object to be peeled and its support, the tip of the adapter 46 can be brought into close contact with the structure of the object to be peeled and its support. It is possible to prevent the dust generated by the scattering from scattering outside the tip end portion 44 of the vibration type peeling device 14b.
That is, by properly using the adapters 46 of various shapes, it is possible to keep the generated dust inside the tip end portion 44 of the vibration type peeling device 14b when peeling off objects to be peeled such as corners and corners. It is possible to prevent scattering to the outside.

  By the way, as shown in FIG. 5A, a suction port 45 is provided at the distal end portion 44 of the vibration type peeling device 14b. The suction port 45 is connected to the suction port 26 of the vacuum suction device 13 through a hose. The peeled material and dust generated in the vibration type peeling device 14b are directed from the suction port 45 into the first filter 27a of the lower housing portion 24b of the vacuum suction device 13 through the hose and the suction port 26. Aspirated.

  The peeling and dust suction device according to the present invention can perform a peeling operation for peeling the peeling target object on the surface of the support without the dust of the peeling matter flying.

Next, specific examples of the present invention will be described.
As the peeling and dust suction device according to the present invention, each device is configured by the connection shown in FIG. 6 (a) using piping such as a hose, and each device is connected by the connection shown in FIG. 6 (b). Examples of such devices are listed.

  First, in the apparatus shown in FIG. 6A, the compressor 11, the receiver tank 12, and the vacuum suction device 13 are connected by a Y-shaped compressor pipe having a branch 51f. The first pipe 51a for compressor is between 51f, the second pipe 51b for compressor is between the receiver tank 12 and the branch 51f, and the third pipe for compressor is between the vacuum suction device 13 and the branch 51f. Connected at 51c.

In the apparatus shown in FIG. 6B, the compressor 11 and the receiver tank 12 are connected by a fourth compressor pipe 51d, and the compressor 11 and the vacuum suction device 13 are connected by a fourth compressor pipe 51d. It is connected with the 5th piping 51e for compressors which is not connected with.
The difference between these connection methods is not particularly large, and may be appropriately selected depending on the place of use.

Next, as shown in FIGS. 6A and 6B, the receiver tank 12 and the peeling device 14 are arranged between the air filter 15 connected to the receiver tank 12 and the peeling device 14 with a receiver tank pipe 52. Connected by
And the vacuum suction apparatus 13 and the peeling apparatus 14 are connected by the piping 53 for vacuum, as shown to Fig.6 (a) (b).

  When the compressor 11 is driven, the compressed air generated here is supplied to the receiver tank 12 via the first compressor pipe 51a and the second compressor pipe 51b, or via the fourth compressor pipe 51d. Sent. Further, it is sent to the vacuum suction device 13 via the first compressor pipe 51a and the third compressor pipe 51c, or via the fifth compressor pipe 51e.

The compressed air sent to the receiver tank 12 is sent to the peeling device 14 via the air filter 15 and the receiver tank pipe 52 and used as a power source of the peeling device 14.
Further, the compressed air sent to the vacuum suction device 13 is used in the ejector unit 21 in the vacuum suction device 13 to generate a reduced pressure. A suction air flow is generated by the generation of the reduced pressure. This airflow is also transmitted to the peeling device 14 via the vacuum pipe 53, and the peeled matter and dust generated in the peeling device 14 ride on this airflow and are in the first filter in the lower housing portion 24b of the vacuum suction device 13. 27a.

  The exfoliated material and the dust sent into the first filter 27a in the lower housing part 24b of the vacuum suction device 13 try to go to the ejector part 21 on the airflow, but the first filters 27a to 3rd. It is separated by the filter 27c and remains in each filter. The airflow from which these exfoliated materials and dust are removed is discharged to the outside from the opening 25 of the upper housing portion 24a via the inside of the ejector portion 21.

As described above, in the peeling and dust suction device according to the present invention, the compressed air generated by the compressor 11 serves as all driving sources. However, the compressor 11 needs to be installed near the power source, is heavy, and is difficult to move in accordance with the peeling operation for peeling the object to be peeled from the surface of the support. Further, since the receiver tank 12 also has a certain weight, it cannot be easily moved in accordance with the work.
On the other hand, the vacuum suction device 13 is large and heavy enough to be carried by the operator, and the peeling device 14 is held by the operator.

As described above, the compressor 11 is difficult to move, and it is a burden on the operator to move the receiver tank 12, whereas the vacuum suction device 13 and the peeling device 14 move together with the operator. For this purpose, the third compressor pipe 51c or the fifth compressor pipe 51e and the receiver tank pipe 52 may be lengthened.
However, if these are excessively long, the degree of compression of the compressed air from the compressor 11 is reduced, the degree of decompression generated in the vacuum suction device 13 is reduced, or the driving force of the peeling device 14 cannot be sufficiently obtained. There is. In order to cope with this, it is preferable to adjust the inner diameter and length of each pipe.

First, the piping between the compressor 11 and the receiver tank 12, that is, the total length of the first compressor piping 51a and the second compressor piping 51b in FIG. 6A, and the compressor in FIG. 6B. The length of the fourth pipe 51d is preferably 8 m or more and 20 m or less. If the length is too short, the installation location of the receiver tank 12 may be limited. If the length is too long, the degree of compression of the compressed air sent to the vacuum suction device 13 or the peeling device 14 is reduced, and a sufficient function is exhibited. Something that may not happen may occur.
Further, the inner diameter of these pipes is preferably 15 mm or more and 35 mm or less. If it is too small, it may be difficult to send a sufficient amount of compressed air, and if it is too large, the degree of compression of the compressed air to be sent may be reduced.

  Next, when the inner diameter of the receiver tank pipe 52 that connects the air filter 15 connected to the receiver tank 12 and the peeling device 14 is less than 10 mm, the length is preferably 7 m or less. When the inner diameter is small, it may be difficult to send a sufficient amount of compressed air to the peeling device 14, and therefore the length is preferably within the above range. On the other hand, when the inner diameter is 10 mm or more, a sufficient amount of compressed air can be sent to the peeling device 14, so the length is preferably 8 m or more and 20 m or less. When the length is longer than 20 m, it may be difficult to send a sufficient amount of compressed air to the peeling device 14.

  In FIG. 5A, when the inner diameter of the compressor third pipe 51c which is a part of the pipe between the receiver tank 12 and the vacuum suction device 13 is less than 15 mm, the compressed air sent to the vacuum suction device 13 In order to prevent the amount of gas from becoming too small, the length of the pipe between the receiver tank 12 and the vacuum suction device 13, that is, the total length of the second pipe for compressor 51b and the third pipe for compressor 51c. Is preferably 2 m or less. On the other hand, when the inner diameter of the third compressor pipe 51c is 15 mm or more and 35 mm or less, the length of the pipe between the receiver tank 12 and the vacuum suction device 13, that is, the second compressor pipe 51b and the third compressor pipe 51c. And the total length is preferably 3 m or more and 20 m or less. When the inner diameter is larger than 35 mm or when the length is longer than 20 m, the degree of compression of the compressed air sent to the vacuum suction device 13 may be lowered.

  On the other hand, in FIG. 5B, the inner diameter of the compressor fifth pipe 51e connecting the compressor 11 and the vacuum suction device 13 is preferably 15 mm or more and 35 mm or less from the viewpoint of the amount of compressed air to be sent. 11 and the vacuum suction device 13, that is, the length of the compressor fifth pipe 51 e is preferably 3 m or more and 20 m or less. When the inner diameter is larger than 35 mm or when the length is longer than 20 m, the degree of compression of the compressed air sent to the vacuum suction device 13 may be lowered.

  By using such an exfoliation and dust suction device, it is possible to perform an exfoliation work while efficiently removing an object to be exfoliated such as a coating film formed on the surface of a support material such as a wall and maintaining the support material. it can. And the dust of the peeling target object which peeled can be attracted | sucked and sent to a vacuum suction apparatus, and it can prevent that dust disperses in air | atmosphere. For this reason, the working environment can be maintained in a good state. In particular, when a toxic substance such as a lead component is contained in the object to be peeled off, dust can be prevented from scattering, so that the worker can be prevented from inhaling dust containing the substance having the characteristics. Can be safe.

DESCRIPTION OF SYMBOLS 11 Compressor 12 Receiver tank 13 Vacuum suction device 14 Peeling device 14a Rotary peeling device 14b Vibratory peeling device 15 Air filter 21 Ejector part 22 Nozzle 23 Diffuser 24a Upper housing part 24b Lower housing part 25 Opening part 26 Suction port 27a First filter 27b Second filter 27c Third filter 28 Connection port

30 Blade 31a Cover 31b Cover side plate 32 Flap blade 32a Rotating shaft 32b Support member 32c Pin 33 File belt 33a Rotating shaft 33b File 34 Metal wear body 34a Rotating shaft 34b Second rotating shaft 34c Convex object 35a Air motor 35b Compressed air Mouth 36 Suction port 41 Blade 41a Needle 42 Compressed air port 43 Air motor 44 Tip 45 Suction port 46 Adapter

51a Compressor first piping 51b Compressor second piping 51c Compressor third piping 51d Compressor fourth piping 51e Compressor fifth piping 51f Branch 52 Receiver tank piping 53 Vacuum piping p, p1, p2 Center

Claims (5)

A compressor, a receiver tank, a vacuum suction device, and a peeling device;
The compressor is connected to the receiver tank and the vacuum suction device,
The receiver tank is connected to the peeling device via an air filter,
The vacuum suction device is connected to the peeling device,
Compressed air from the compressor is sent to the peeling device via the receiver tank and the air filter as a driving source of the peeling device,
By sending compressed air from the compressor to the vacuum suction device, depressurization occurs,
Peeling by which the peeling device is driven by the compressed air from the compressor to peel off a peeling target, and the dust generated by peeling is sucked into the vacuum suction device by the reduced pressure generated by the vacuum suction device. Cum dust suction device.   The peeling and dust suction device according to claim 1, wherein at least one filter is disposed inside the vacuum suction device, and dust of the peeled material sucked into the vacuum suction device is separated by the filter.   The peeling and dust suction device according to claim 1 or 2, wherein the peeling device is a device that peels the peeling object by hitting, grinding, or scraping the peeling object. The compressor, the receiver tank, and the vacuum suction device are connected by a Y-shaped pipe having a branch,
The first pipe for compressor is between the compressor and the branch, the second pipe for compressor is between the receiver tank and the branch, and the second pipe for compressor is between the vacuum suction device and the branch. Connected with 3 pipes.
The inner diameter of the third pipe for compressor is 15 mm or more and 35 mm or less, and the total length of the second pipe for compressor and the third pipe for compressor is 3 m or more and 20 m or less. The peeling and dust suction device according to any one of the above. The compressor and the receiver tank are connected by a fourth compressor pipe, and the compressor and the vacuum suction device are connected by a fifth compressor pipe that is not connected to the fourth compressor pipe.
The internal diameter of the said 5th piping for compressors is 15 mm or more and 35 mm or less, and the length of the said 5th piping for compressors is 3 m or more and 20 m or less. Dust suction device.

Images