JP2702084B2 - Dust removal device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dust removing device for removing dust adhering to a work after grinding and polishing.

[0002]

2. Description of the Related Art For example, when a woodwork product is coated after being subjected to a grinding and polishing process, a dust removing process is performed after the grinding and polishing so as to prevent dust from remaining on the work. Conventionally, as a means of such dust removal processing, a method is provided in which a rotating brush is provided in a work transfer area, and the dust attached to the work is removed by rubbing the surface of the work with the brush. Was taken.

[0003]

However, in the above-mentioned method, the dust blown off by the brush is scattered around, so that the scattered dust floats around and causes environmental deterioration. There was a problem.

[0004] As a countermeasure against environmental deterioration due to dust floating, it is conceivable to cover the work transfer area with a cover and provide a duct opened in the cover, to suck the dust by the duct and discharge it to the outside of the cover. . However, even with such a method, dust may leak to the outside of the cover through the inlet and outlet of the work provided on the cover,
Environmental degradation due to dust floating cannot be completely prevented.

Further, dust removed from the work may be transferred to and adhered to the dust removal brush. However, when the dust adhered to the dust removal brush comes into contact with the work, there is a possibility that the dust may adhere to the work again.

The present invention has been made in view of the above circumstances, and it is possible to prevent dust removed from a work from deteriorating due to scattering around the work and to prevent the dust removed from the work from being applied to the work. The purpose is to prevent re-adhesion.

[0007]

Means for Solving the Problems As means for solving the above-mentioned problems, the invention of claim 1 includes a dustproof cover provided so as to surround a pass area of a work except for a work inlet and a work outlet, and A dust collection duct that opens inside the dust cover and sucks dust from inside the dust cover with air, a dust brush provided inside the dust cover to wipe the surface of the work, and pressurized air toward the dust brush. A cleaning nozzle that discharges, a movable inlet shielding member that is provided so as to shield a communication path inside and outside the dustproof cover through the work inlet, and a tip side of which is displaced so as to follow the surface of the work; The movable outlet shielding member is provided so as to shield the passage and is displaced so that the front end side follows the surface of the work.

According to a second aspect of the present invention, in the first aspect of the present invention, the communication between the dust collection duct and a space protruding from the inner wall of the dustproof cover to the outer periphery of the dust removal brush and scattering the dust removed from the work. This is characterized in that a partition plate is provided for partitioning the space between the side where the removed dust scatters and the space on the opposite side.

A third aspect of the present invention is characterized in that, in the second aspect of the present invention, the partition plate is provided so as to be movable toward the outer periphery of the dust removing brush.

[0010]

According to the first aspect of the present invention, when the work is conveyed into the dust cover, the dust adhering to the surface of the work is wiped off by the dust removing brush and collected together with the air in the dust cover. It is sucked by the duct and discharged to the outside. Since the work entrance and work exit are shielded by the movable entrance shielding member and the movable exit shielding member regardless of the passage of the work, there is a possibility that dust removed from the work may leak to the outside through the work entrance or the work exit. Absent. Also,
Even if the dust removed from the workpiece moves to and adheres to the dust removing brush, the dust attached to the dust removing brush is removed by the pressurized air discharged from the cleaning nozzle.

According to the second aspect of the present invention, since the partition plate is provided, the dust removed from the work and scattered does not go around in the direction opposite to the scattering direction, and is entirely sucked from the dust collection duct. Is discharged.

According to the third aspect of the present invention, even if the dust removing brush is worn due to contact with the workpiece, the partition plate is advanced to maintain the state close to the outer periphery of the dust removing brush.

[0013]

According to the first aspect of the present invention, the dust removed from the work is collected in the dust cover, and the dust is prevented from leaking out of the dust cover through the work inlet and the work outlet. Therefore, it is possible to reliably prevent the environment from deteriorating due to dust floating around. Further, the dust transferred from the work to the dust removal brush can be removed by the pressurized air, so that the dust once removed can be prevented from attaching to the work again through the dust removal brush.

According to the second aspect of the present invention, the dust that has been removed and scattered is guided to the dust collection duct without sneaking into the space on the side opposite to the scattering direction, so that the dust collection efficiency to the dust collection duct is improved. Is excellent.

According to the third aspect of the present invention, even if the dust removal brush is worn, there is no large gap between the dust removal brush and the partition plate. Therefore, it is possible to prevent a reduction in dust collection efficiency due to the wear of the dust removal brush. Can be.

[0016]

【Example】

<Embodiment 1> Hereinafter, Embodiment 1 embodying the present invention will be described with reference to FIG.
This will be described with reference to FIGS. In the description of the present embodiment, the up and down and left and right directions are based on FIG. 2 showing the front, and the downward direction in FIG. 3 showing the plane is the forward and the upward direction is the rear.

The base 10 is mounted on the base 1 with its axis oriented up and down.
The lifting frame 12 is supported via a plurality of male screw rods 11 screwed into female screw holes (not shown). When the lifting handle 13 is rotated, the male screw rod 11 is rotated via the bevel gear 14 so that the lifting frame 12 is guided by the lifting guide 15 shown in FIG. 4 to move up and down, and the height thereof can be adjusted. It has become.

On the lifting frame 12, six feed rolls 18 constituting a conveyor 17 are supported in parallel in the left-right direction, and these feed rolls 18 are chained between sprockets 18A fixed to their rear ends. 18B can be integrally rotated by being bridged. When the conveyor motor 19 is driven, each feed roll 18 is driven to rotate in the same direction at the same peripheral speed, and the work W placed on these feed rolls 18 is conveyed from right to left. I have.

A lower dust collection duct 12A is provided on the lower surface of the lifting frame 12 with an opening. The lower dust collection duct 12 </ b> A sucks dust that falls or floats in a space below the feed roll 18, discharges the dust to the outside of the elevating frame 12, and collects and collects the dust.

Next, the dust removing mechanism will be described. Base 1
0 is provided with main frames 20A and 20B so as to rise from both front and rear edges thereof, and the main frames 20A and 20B are arranged so as to sandwich the conveyor 17 from both sides. This main frame 20A,
A dust cover 21 that covers the work transfer area of the conveyer 17 from above is attached between 20B. The dustproof cover 21 has a lower surface that is entirely open, and the openings are provided at two right and left ends of the six feed rolls 18.
It covers an area that completely covers the four feed rolls 18 excluding the books. Immediately above the two feed rolls 18 at both ends, a pressing roll 22 for pressing the work W onto the feed roll 18 by a compression coil spring 22A is provided. The press roll 22 is covered by side covers 23, 23 on the upper side and the side.

The opening between the lower edge of the right side wall of the dust cover 21 and the conveying surface of the conveyor 17 is a work inlet 24 for the work W to enter the dust cover 21.
A small gap is formed between the upper edge of the work inlet 24 and the work W in order to prevent mutual interference. The opening between the lower edge of the left side wall opposite to the work entrance 24 and the conveying surface of the conveyor 17 is a work exit 25
A gap is provided between the upper edge of the work outlet 25 and the work W for preventing mutual interference.

Near the work inlet 24 in the dust cover 21, dust is generated from a gap between the work inlet 24 and the dust cover 21.
A movable entrance regulating plate (a movable entrance shielding member, which is a component of the present invention) 27 for regulating leakage to the outside is provided. The movable entrance restricting plate 27 is attached to the front-rear rotating shaft 28 fixed along the upper right edge of the dust-proof cover 21.
By being fitted into a bearing 29 provided near the work inlet 24, the left end side is supported so as to be movable up and down around the rotation shaft 28 in a posture inclined so as to be lower. It is urged by its own weight in the direction of turning downward.

An arm 30 is provided on the movable entrance regulating plate 27 so as to rotate integrally with a rear side edge thereof, and a locking roll 31 is provided at a lower left end of the arm 30.
Are supported, while a receiving block 32 is fixed to the lifting frame 12. When the movable entrance regulating plate 27 rotates downward, the conveyor 17 with respect to the dustproof cover 21
When a predetermined rotation angle corresponding to the height of the object is reached, FIG.
As shown by the chain line in FIG.
And further rotation is prevented, so that interference with the second feed roll 18 from the right is prevented.

A locking plate 33 is formed on the rotating shaft 28 so as to protrude so as to rotate integrally therewith. The locking plate 33 faces stoppers 34U and 34L fixed to the dustproof cover 21. When the movable entrance restricting plate 27 rotates upward, the locking plate 33 abuts against the lower stopper 34L when a certain rotational angle is reached, and further rotation is prevented. Interference with the right dust removal brush 37R is prevented. Conversely, when the movable entrance restricting plate 27 rotates downward, the locking plate 33 comes into contact with the upper stopper 34U, thereby restricting the rotation above a certain level. Even if the conveyor 17 descends to such an extent that it becomes impossible, the movable entrance regulating plate 27 is prevented from interfering with the feed roll 18.

While the work W does not pass through the work entrance 24, the movable entrance regulating plate 27 rotates downward as shown by a chain line in FIG. Will cover. When the work W is passing through the work entrance 24, the movable entrance regulating plate 27 is pushed up from below by the work W, so that the movable entrance regulating plate 27 is placed on the upper surface of the work W as shown by a solid line in FIG. This covers a range from the upper surface of W to the upper edge of the work inlet 24. Thus, the work entrance 24
Is always kept covered by the movable entrance regulating plate 27 regardless of whether the workpiece W passes or not.

On the other hand, the work outlet 25 in the dustproof cover 21
A movable outlet shield (a movable outlet shield member which is a constituent element of the present invention) 35 for restricting dust from leaking out of the dustproof cover 21 from a gap of the work outlet 25 is provided near the work outlet 25. The movable outlet shield 35 is formed of a flexible rubber material into a sheet, and has a width that covers the entire opening of the work outlet 25 and a length that sufficiently reaches the conveying surface of the conveyor 17. The movable outlet shield 35 has a number of flexures 35A formed by cutting from the lower edge thereof, and has a good curtain shape as a whole.

While the work W is not passing through the work outlet 25, all the cuts of the movable outlet shield 35 are closed and the bent piece is formed into a single sheet and hangs down on the conveying surface. It is in a state of being blocked. Further, while the work W is passing through the work outlet 25, the bending piece 35A in the range corresponding to the work W is placed on the upper surface of the work W while being pulled leftward, and the upper surface of the work W and the left side wall are moved. Is closed. In addition, the bending piece 35A in a range not corresponding to the work W hangs down on the transport surface, and blocks the range from the lower edge of the left side wall to the transport surface. Thus, the work outlet 25 is always kept closed by the movable outlet shield 35 regardless of whether the work W passes or not.

The upper surface plate of the dustproof cover 21 is located at the highest position substantially at the center, and is inclined downward in all directions. At the highest position of the top plate, a dust collection duct 36 is formed to open inside the dustproof cover 21. The dust collection duct 36 is connected to a suction side of a dust collection fan (not shown), and sucks dust in the dust cover 21 together with air.

In the dustproof cover 21, the movable entrance regulating plate 2
A right dust removal brush 37R is provided on the left side of 7 (opposite to the work entrance 24) and directly above the third feed roll 18 from the right of the conveyor 17. The position of the right dust removal brush 37R is slightly to the right of the dust collection duct 36. The right dust removal brush 37R is mounted on the feed roll 1
The rotating shaft 38 </ b> R parallel to the shaft 8 is rotatably supported by fitting both ends of the rotating shaft 38 </ b> R into bearings (not shown) on the side wall of the dustproof cover 21. The right dust removing brush 37R is driven to rotate clockwise in FIG. 2 by a dust removing brush motor 39R provided in the main frame 20B behind the dustproof cover 21, and a predetermined contact pressure is applied to the upper surface of the work W at the lower end. It is possible to remove the dust adhering on the same surface by contacting the same by blowing it away. At this time, the dust is blown off to the left, which is on the opposite side of the workpiece inlet 24.

In the dust cover 21, a left dust removing brush 37L is provided near the right side of the work outlet 25 and directly above the second feed roll 18 from the left of the conveyor 17. The position of the left dust removal brush 37L is slightly to the left of the dust collection duct 36. Left dust brush 37L
Similarly to the right dust removing brush 37R, the lower dust removing brush 37L is supported by the rotating shaft 38L. The lower end of the left dust removing brush 37L is at the same height as the lower end of the right dust removing brush 37R, and can contact the upper surface of the work W. The left dust removing brush 37L is rotationally driven by a separate dust removing brush motor 39L separate from the right dust removing brush 37R, and the rotation direction is opposite to that of the right dust removing brush 37R. Therefore, the dust of the work W is blown away to the right, which is the opposite side of the work outlet 25.

The height of the work W with respect to the right dust brush 37R and the left dust brush 37L is set by adjusting the height of the conveyor 17 based on the thickness of the work W, whereby the right dust brush 37R and the right dust brush 37R are adjusted. The left dust removing brush 37L can come into contact with the work W with a suitable contact pressure. Further, the dust removing brushes 37R and 37L are used for the work W
In the state of contact with the upper surface of the workpiece W, a gap is formed between the upper edge of the workpiece inlet 24 and the upper edge of the workpiece outlet 25 to avoid mutual interference. I have.

At a position on the right side of the right dust removing brush 37R and above the movable inlet regulating plate 27, a right cleaning nozzle 40R connected to a blowout side of a compressor or a blower (not shown) is arranged. The right cleaning nozzle 40R has an air outlet 41R that opens over the entire width of the conveyor 17, and compressed air is discharged from the air outlet 41R. The compressed air is discharged obliquely downward and leftward so as to be almost tangential to a portion of the outer periphery of the right dust removal brush 37R immediately before contact with the workpiece W.

A left cleaning nozzle 40L having the same configuration as the right cleaning nozzle 40R is disposed at a position on the left side of the left dust removing brush 37L. From the discharge port 41L of the left cleaning nozzle 40L, pressurized air is discharged obliquely downward and rightward so as to be substantially tangential to a portion of the outer periphery of the left dust removal brush 37L immediately before contact with the workpiece W. The direction in which the compressed air is discharged is opposite to the work outlet 25.

Further, a dust removing nozzle 42 is disposed between the right dust removing brush 37R and the left dust removing brush 37L. The dust removal nozzle 42 has two air outlets 43R and 43 that discharge compressed air in a diagonally lower right direction and a diagonally lower left direction.
L. The pressurized air discharged from the dust removal nozzle 42 is applied to both the left and right dust removal brushes 40L,
It points to a position closer to the center than 40R.

Right dust removing brush 3 in dust cover 21
A right partition plate 45R is provided almost directly above 7R.
The right partition plate 45R passes through the support groove 46R formed in the right inclined plate of the upper surface plate of the dustproof cover 21 in the left-right direction with the plate surface facing the front and rear and up and down directions, and the width of the dustproof cover 21 is Spread throughout. Right partition board 45R
By being fitted in a guide cylinder 47R attached to the lower surface of the right inclined plate, it is guided so as to be prevented from tilting forward, backward, left and right and to be able to move up and down in a constant posture. This right partition 4
The lower edge of 5R is parallel to the rotation axis 38R of the right dust brush 37R, and extremely close to the outer periphery near the upper end of the right dust brush 37R.

With the right partition plate 45R, the dust collecting space (= right dust brush 37R) on the left side of the right dust brush 37R.
(A space on the side from which dust removed from the work W is blown off) CS and a right space opposite the dust collection space CS with the right dust brush 37R interposed therebetween (= the work inlet 24 and the movable inlet regulating plate 27 are located). (Space on the side) RS, and the flow of dust between the two spaces CS and RS is regulated. Further, the right partition plate 45R is arranged along the dust collection space CS, and also has a function of guiding the dust in the dust collection space CS to the dust collection duct 36.

The right partition plate 45R is movable so as to approach and separate from the right dust brush 37R.
A rack 48R having teeth arranged vertically is fixed to an upper end portion of the right partition plate 45R protruding above the dustproof cover 21 and a bracket 5 attached to the upper surface of the right inclined plate.
The pinion 49R is supported by the 0R, and the rack 48R and the pinion 49R are engaged with each other. An adjustment handle 51R is integrally attached to the pinion 49R. When the adjustment handle 51R is rotated, the right partition 45R moves up and down due to the engagement of the rack 48R and the pinion 49R.
The lower edge comes in contact with and separates from the outer periphery of the right dust removing brush 37R.

Above the left dust removing brush 37L, the left partition plate 4 is provided.
5L are provided. The left partition plate 45L can move vertically in the same manner as the right partition plate 45R by penetrating the support groove 46L of the left inclined plate and guided by the guide cylinder 47L. It is located very close to it. In addition, by rotating the adjustment handle 51L, the rack 48L and the pinion 49L move up and down through meshing, so that the left dust removing brush 37L can be brought into contact with and separated from the outer periphery.

The left partition 45L is provided in the dust collecting space C.
S and the left space LS on the workpiece outlet 25 side are partitioned, and the flow of dust between the two spaces CS and LS is regulated. The right partition plate 45R is arranged symmetrically with the right partition plate 45R along the dust collection space CS, and cooperates with the right partition plate 45R to remove dust in the dust collection space CS. 36.

Next, the operation of the present embodiment will be described.
When the height of the conveyor 17 is adjusted in accordance with the thickness of the work W, the feed roll 18 is driven to rotate, and the dust collecting fan is driven so that the air in the dustproof cover 21 is moved to the upper dust collecting duct 3.
6 and the left and right dust removal brushes 37L, 37R are rotationally driven.

In this state, when the work W polished and ground in the previous process is conveyed by the conveyor 17, the front end of the work W passes through the work inlet 24 of the dustproof cover 21 and contacts the lower surface of the movable inlet regulating plate 27. The work W further advances while pushing up the movable entrance regulating plate 27, and after the leading end of the work W passes through the leading end of the movable entrance regulating plate 27, the movable entrance regulating plate 27 is moved away from the work W as shown by a solid line in FIG. It is in a state of being raised on the upper surface.

The work W is moved by the movable entrance regulating plate 27.
While passing on the right dust removing brush 37R and left dust removing brush 37L. After that, the tip of the work W comes into contact with the movable outlet shield 35, and this is shown in FIG.
The workpiece W is bent and pushed up as shown by the solid line in FIG.
Pass through the work outlet 25 of FIG. As shown in FIG. 5, portions of the movable outlet shield 35 on both sides that do not contact the work W are in a state of hanging straight down.

The rear end of the work W is located at the work entrance 24.
And moves away from the tip of the movable entrance regulating plate 27, the movable entrance regulating plate 27 descends by its own weight and returns to the state shown by the chain line in FIG. 2 to close the work entrance 24. Further, after the rear end of the work W has passed through the work outlet 25,
The part that was on the work W descends due to its own weight,
As shown by a chain line in FIG. 2, the work outlet 25 is hung down and closed.

In this way, the work W is moved to the dustproof cover 21.
While being conveyed inside, the dust adhering to the upper surface of the work W is removed. Hereinafter, the dust removing action will be described. When the work W passes under the right dust removal brush 37R, dust adhering to the upper surface of the work W is removed by the right dust removal brush 37R and blown off to the dust collection space CS. Thereafter, when the work W passes below the dust removal nozzle 42, dust remaining on the work W, which cannot be completely removed by the right dust removal brush 37R, is blown off by the pressurized air discharged from the dust removal nozzle 42, and is removed. CS
Soar up inside. Further, when the work W passes under the left dust brush 37L, the right dust brush 37R
In addition, the dust that has not been completely removed by the dust removing nozzle 42 is removed and blown off to the dust collecting space CS. In addition, dust adhering to both front and rear end surfaces (cut ends) of the work W is discharged from the dust removing nozzle 42 and blown off by the compressed air.
As described above, the dust adhering to the work W is completely removed.

The dust removed from the work W in this manner does not spread over the entire inside of the dustproof cover 21, but is sandwiched between the left and right dust removing brushes 37L, 37R and the left and right partitioning plates 45L, 45R thereon. The dust cover soars up in the relatively small dust collection space CS.
The air is sucked into the upper dust collection duct 36 together with the air inside, and is discharged out of the dustproof cover 21. As described above, the removed dust is collected in the narrow dust collection space CS and discharged, so that the dust collection efficiency to the upper dust collection duct 36 is increased.

A part of the dust removed from the work W is not sucked by the upper dust collecting duct 36 but descends into a space below the feed roll 18 of the conveyor 17, and the lower dust collecting duct 36 of the lifting frame 12 is moved. It is discharged by being sucked into.

Further, since the left and right partition plates 45R, 45L divide the space above the dust removing brushes 37L, 37R into a dust collecting space CS and a right space RS or a left space LS, the dust is separated into the right space RS and the left space. There is little risk of entering the LS.

Even if the dust enters the right space RS through a small gap between the right partition plate 45R and the right dust brush 37R, the movable entrance regulating plate 27 is moved by the right dust brush 3R.
Since the work W is shielded from the position near the 7R to the work entrance 24 side, there is little possibility that dust will fall on the upper surface of the work W. Further, since the opening of the work inlet 24 in the right space RS is shielded by the movable inlet restricting plate 27, dust is transferred from the work inlet 24 to the dustproof cover 21.
There is no danger of leakage to the outside.

On the other hand, even if dust enters the left space LS through a slight gap between the left partition plate 45L and the left dust removal brush 37L and re-adheres to the dust-free work W, it remains on the upper surface of the work W. The movable outlet shield 35 in contact with the dust rubs and removes the dust. Work outlet 25
Is closed by the movable outlet shield 35, so that there is no possibility that the dust leaks out of the dustproof cover 21 through the opening of the work outlet 25.

Furthermore, in the right space RS, dust adhering to the right dust brush 37R in the dust collection space CS is removed by the pressurized air discharged from the right cleaning nozzle 40R.
When the dust comes in contact with the
And there is no risk of re-adhering.

Similarly, in the left space LS, dust adhering to the left dust removing brush 37L is removed by the left cleaning nozzle 4L.
Since the dust is removed by the pressurized air discharged from 0L, there is no possibility that the dust of the left dust removal brush 37L will adhere to the dust removed work W again when the left dust removal brush 37L comes into contact with the work W.

According to the present embodiment as described above, the work W
The dust removed from the dust is discharged by sucking the dust in the dust collecting duct 36 in the dustproof cover 21, so that the dust does not float in a wide area around the dust, thereby preventing the environment from being deteriorated due to the dust. . In addition, the work inlet 24 and the work outlet 25 of the work W provided on the dustproof cover 21 are closed by the movable inlet regulating plate 27 and the movable outlet shield 35, respectively.
Dust in the dustproof cover 21 does not leak out of the dustproof cover 21 through the work inlet 24 and the work outlet 25, and the effect of preventing the dust from deteriorating the environment is enhanced.

The dust removing brush 37L. 37R is worn by contact with the work W, so the dust removing brush 37L,
The outside diameter of the 37R gradually decreases. Therefore, when the wear of the dust removing brushes 37L, 37R has progressed to some extent, the adjusting handles 51L, 51R are operated to adjust the vertical position of the partition plates 45L, 45R. Thereby, the partition plates 45L and 45R and the dust removal brushes 37L and 37R
By keeping the gap between them small, it is possible to prevent dust from entering the right space RS or the left space LS. Thus, high dust collection efficiency can be maintained, and the effect of preventing dust that has entered the right space RS and the left space LS from re-adhering to the work W can be maintained.

<Embodiment 2> Next, Embodiment 2 of the present invention will be described with reference to FIG. The dust removal device of the second embodiment removes the right dust removal brush 37R, the right partition plate 45R, and the right cleaning nozzle 40R in the first embodiment, and also moves the dust cover 61 from the dust cover 21 of the first embodiment. The configuration is such that the right space RS is omitted, and the movable entrance regulating plate 27 is provided so as to extend obliquely downward from the upper edge of the opening of the work entrance 24 to the inside of the dustproof cover 21. The other configuration is the same as that of the first embodiment, and thus the same reference numerals are given and the description is omitted.

In the present embodiment, dust adhering to the work W is removed by blowing off the dust in both the left and right directions with the pressure air discharged from the dust removing nozzle 42, and by blowing the dust to the right with the left dust removing brush 37L. The dust removed from the work W is deposited on the right side wall of the dustproof cover 61 and the left partition plate 45.
L rises in the dust collecting space CS sandwiched between the dust collecting space L and the dust collecting duct 36. At this time, the dust removed from the work W scatters toward the work inlet 24 side, and the work inlet 24 is provided with a movable inlet regulating plate 27 so as to extend obliquely downward from near the upper edge of the opening. There are no gaps that allow dust to pass easily. Therefore, there is no possibility that the removed dust leaks out of the dustproof cover 61 through the work inlet 24.

In the second embodiment, as compared with the first embodiment, the right dust removing brush 37R, the right partition plate 45R, and the right cleaning nozzle 40R are omitted, and the dust-proof cover 61 is downsized. It is advantageous.
The functions and effects of the components other than those described above are the same as those in the first embodiment, and thus description thereof is omitted.

Third Embodiment Next, a third embodiment of the present invention will be described with reference to FIG. The dust removing device according to the third embodiment includes the left dust removing brush 37L and the dust removing nozzle 42 arranged in the left and right directions in the second embodiment, and a left partition plate 45L.
To eliminate the left space LS, and further remove the left cleaning nozzle 40L. The other configuration is the same as that of the first embodiment, and thus the same reference numerals are given and the description is omitted.

In this embodiment, the dust adhering to the work W is first blown off to the right by the dust removing brush 37L, and then removed by being blown off in both the left and right directions by the pressurized air discharged from the dust removing nozzle 42. . At this time, the dust removed by the dust removing brush 37L scatters in the dust collecting space CS toward the work inlet 24.
7 and the movable entrance restricting plate 27 is inclined upward to the right, so that the dust can pass through the work entrance 2.
4, the dust collection duct 36 moves upward and diagonally right along the upper surface of the movable entrance regulating plate 27 without leaking to the outside of the dustproof cover 71, and then rises along the right inner wall surface of the dustproof cover 71, after which the dust collection duct 36 It is suddenly turned and discharged. A part of the dust blown off by the dust removal nozzle 42 is supplied to the work outlet 25.
However, since the work outlet 25 is closed by the movable inlet regulating plate 27 sheet, the dust does not leak through the work outlet 25 to the outside of the dust-proof cover 71 and is located on the left side of the dust removal brush 37L. After ascending the space, it is sucked into the dust collection duct 36.

The third embodiment is advantageous in cost because the partition plate 45L is omitted as compared with the second embodiment. The functions and effects of the constituent members other than those described above are the same as those in the first embodiment, and thus description thereof is omitted.

<Other Embodiments> The present invention is not limited to the embodiments described above with reference to the drawings. For example, the following embodiments are also included in the technical scope of the present invention. In addition, various changes can be made without departing from the scope of the invention.

(1) In the above embodiment, each nozzle 40L,
Although the case where 40R and 42 are fixedly provided has been described, the nozzle may be movable according to the present invention. For example, in the first and second embodiments, the dust removal brush 4 is used.
By moving the workpiece 2 following the workpiece W, the state in which the compressed air is discharged toward the tip of the workpiece W can be maintained for a certain period of time, thereby improving the dust removal efficiency at the tip. Will be possible. Also,
In the third embodiment, the work W
When the work W is not passing, the direction of the dust removal nozzle 42 is displaced to the dust removal brush 37L side while the work W is not passing. If the dust adhering to the dust removal brush 37L is removed, both the work W and the dust removal brush 37L can be removed by one dust removal nozzle 42.

(2) In the above embodiment, the work entrance 24 is provided with a movable entrance regulating plate 27 in the form of a plate which can be moved up and down, and the work exit 25 is provided with a movable exit shield 35 in the form of a curtain which can be bent and deformed. According to the present invention, according to the present invention, the work entrance 24 is provided with a shield member having the same shape as the movable exit shield 35, and the work exit 25 is formed in the same plate shape as the movable entrance regulating plate 27. Any of a configuration in which a shielding member is provided, a configuration in which a plate-shaped shielding member is provided in both the work entrance 24 and the work exit 25, and a configuration in which a curtain-shaped shielding member is provided in both the work entrance 24 and the work exit 25. It is also possible.

(3) The movable outlet shield 35 provided at the work outlet 25 in the above embodiment is not limited to rubber, but may be made of any other material as long as it has appropriate elasticity and flexibility. It is possible.

(4) The movable outlet shield 35 provided at the work outlet 25 may have a function of removing static electricity charged on the work W. This makes it possible to prevent foreign matter such as dust and dirt from adhering after the dust-free work W is carried out of the dust cover.

(5) In the above embodiment, the movable entrance shielding member provided at the work entrance 24 has a single plate-like movable entrance shielding plate 2.
Although the case of 7 has been described, the movable entrance shielding member may be configured to separately support the plurality of rod-shaped members divided in the width direction of the work W so as to be vertically movable. By doing so, no space is left on both sides of the work W, and the effect of preventing dust from leaking from here is enhanced.

[Brief description of the drawings]

FIG. 1 is a front view of a first embodiment of the present invention.

FIG. 2 is a partially cutaway front view of the first embodiment.

FIG. 3 is a partially cutaway plan view of the first embodiment.

FIG. 4 is a right side view of the first embodiment.

FIG. 5 is a partial left side view of the first embodiment.

FIG. 6 is a partially cutaway front view of the second embodiment.

FIG. 7 is a partially cutaway front view of the third embodiment.

[Explanation of symbols]

 W ... Work 21 ... Dustproof cover 24 ... Work inlet 25 ... Work outlet 36 ... Dust collection duct 37L ... Left dust removal brush 37R ... Right dust removal brush 40L ... Left cleaning nozzle 40R ... Right cleaning nozzle 27 ... Movable entrance regulating plate (movable entrance shield) 35) Movable exit shielding body (movable exit shielding member) 45L ... left partition plate 45R ... right partition plate

Claims (3)

(57) [Claims] 1. A dust cover provided to surround a passage area of a work while leaving a work inlet and a work outlet, and a dust collector opened inside the dust cover to suck dust together with air from inside the dust cover. A duct, a dust brush provided in the dust cover to wipe the surface of the work, a cleaning nozzle for discharging pressurized air toward the dust brush, and a communication passage inside and outside the dust cover through the work inlet. A movable entrance shielding member that is provided so as to shield and is displaced so that the tip side follows the surface of the work; and a tip side that is provided to shield a communication path inside and outside the dustproof cover through the work outlet, and the tip side is the surface of the work. A dust removal device comprising: a movable outlet shielding member that displaces in a manner similar to that of a dust removal device. 2. A dust projection brush protrudes from an inner wall of the dust-proof cover to an outer periphery of a dust removal brush, maintains communication between a space on a side where dust removed from a work is scattered and a dust collection duct, and scatters the removed dust. The dust removing device according to claim 1, further comprising a partition plate for partitioning a space on the side to be separated from the space on the opposite side. 3. The partition plate is provided so as to be able to advance and move toward the outer periphery of the dust removing brush.
A dust remover as described.