JPH0627337Y2 - Dust collecting mechanism in polishing panel - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dust collecting mechanism for a polishing board. More specifically, it does not cause air pollution,
The present invention relates to a dust collecting mechanism in a polishing board that can reduce equipment costs.

[0002]

2. Description of the Related Art When polishing lumber or metal products,
Or, when polishing a mirror surface or surface pattern, a large amount of dust is generated, which adversely affects the quality of products being worked and the health of workers.Therefore, most polishing and polishing plants are currently equipped with dust collectors. ing. In these devices, a suction pipe is installed on one side of the hot rolling machine base, and the exhaust end of the suction pipe is connected to a large horsepower exhauster provided outside the factory to generate the hot rolling machine base. Abrasive dust is sucked out, and the sucked dust is captured by a dust collecting device provided near the end of the suction pipe.However, this kind of device has a problem that the cost is high and air pollution is likely to occur. is there.

In still another dust collecting apparatus, a plurality of dust collecting cylinders are attached inside the polishing machine base, and ventilation pipes are connected to the bottoms of the plurality of dust collecting cylinders, and an exhaust fan and a motor are provided on one side of the machine base. There are things that are installed. The motor drives the exhaust fan to suck dust-laden air into the ventilation pipe through a plurality of dust collecting cylinders and discharge the air, thereby adhering the dust in the air to the outer peripheral wall of the dust collecting cylinder. Further, the dust collecting cylinder is operated for a predetermined time to capture the dust, and finally, the compressed dust is used to blow the dust in the dust collecting cylinder into the collection box from the inside to the outside. This type of device has the effect of completely filtering and cleaning the air, but since the compressor must be installed, the equipment cost of the entire device is still high.

[0004]

SUMMARY OF THE INVENTION In view of the problem of the dust collecting mechanism in the conventional polisher, the present invention provides a blower inside the dust collecting drum drum, and the polishing dust adsorbed and captured on the outer peripheral wall of the dust collecting drum drum. Collected by blowing off during the dust collection operation,
It is an object of the present invention to provide a dust collecting mechanism for a polishing board that can reduce equipment costs without causing air pollution.

[0005]

According to the dust collecting mechanism in the polishing board according to the present invention, the hollow inside of the rectangular machine base is partitioned into large and small storage spaces by an upright fixing plate, and at least one of the fixing plates is provided. An air intake hole is provided, and one or more dust collecting net drums in a transversely orthogonal direction are rotatably cantilevered on the large storage space side of the air intake hole, and a motor is concentric inside the dust collecting net drum. And both output ends of the rotary shaft of the internal motor are extended into the small storage space and the large storage space, respectively, and the exhaust fan is provided at the small storage space side end and the large storage space side end is provided. A blower is connected in an interlockable manner, the exhaust port of the blower is formed in a slender rectangular shape downwards along the direction of the axis of the dust collecting drum, and winds that go around the insides of the top edges of the four side walls of the machine stand. The road has its opening pointing toward the center of the machine's top edge Is formed so as to blow out air and not to close the ventilation hole provided in the small storage space communicating with the air passage, and the work table surface is formed inside the peripheral edge of the top end. The object is achieved as a configuration in which a plurality of through holes are formed over the entire surface of the table surface covering the large storage space.

In a preferred aspect of the present invention, a plurality of bearings extending from the peripheral surface of the fixing plate to the large storage space are fixedly mounted in the respective intake holes of the fixing plate so that the dust collecting drum is rotatably fitted. A silencer formed of a plurality of layers of non-woven fabric is provided on the wall surface of the small storage space that is held together and faces the fixing plate.

Further, in another preferred aspect of the present invention, the side wall of the machine base on the side of the small storage space is extended upward to form a raised seat having a trapezoidal side surface, and the raised seat is provided inside the raised seat. The configuration is such that a plurality of ventilation paths are formed.

Further, in another preferred aspect of the present invention, it is more preferable that an opening of an appropriate length is provided on the inward side surface of the convex seat top end so as to communicate with the respective ventilation passages.

[0009]

According to the dust collecting mechanism configured as described above, when the drive motor is started, the air accompanied by dust is sucked into the large storage space of the machine base from the work surface and is rotationally driven. The dust is filtered and adhered to the mesh of the dust collecting drum. The cleaned air is sucked into the exhaust fan driven by the internal motor that rotates in synchronization with the drive motor and discharged into the small storage space. Further, the air can be blown out into the air passage through the ventilation hole provided in the small storage space, and the air can be blown toward the center of the work table surface from the opening of the air passage while forming an air curtain on the top edge of the side wall of the machine base.

On the other hand, the dust adhering to the outer peripheral surface of the dust collecting drum which is driven and rotated by the drive motor is rapidly blown out from the elongated downward rectangular exhaust port of the blower which is operated in synchronization with the blower. Due to the wind force formed by the flow, the dust can be separated from the inside of the dust collecting drum by a considerable pressure and separated and collected.

Further, a plurality of bearings extending from the peripheral surface to the large storage space are fixedly mounted in the respective intake holes of the fixing plate, and the dust collecting drum is rotatably fitted and held therein, and Since the muffler made of a plurality of layers of non-woven fabric is provided on the wall surface of the small storage space facing the fixing plate, the rotating operation of the dust collecting net drum becomes smoother, and the dust is generated in the machine base and discharged. The noise transmitted to the air can be silenced.

Further, the side wall of the machine base on the side of the small storage space is extended upward to form a raised seat having a trapezoidal side surface, and a plurality of ventilation paths are formed inside the raised seat. An opening of an appropriate length is provided on the inward side surface of the top end of the raised seat,
Since each of them is formed so as to communicate with the ventilation path, a small amount of dust that may be included in the air blown out from the air passage openings at the top edges of the four side walls of the machine base is not scattered, and it is retained on the work surface. It can be sucked into the table and removed by circulation filtration.

The above and other objects, features and advantages of the present invention will be more apparent from the following detailed description of the embodiments with reference to the drawings.

[0014]

1 to 6 are views showing a dust collecting mechanism in a polishing board according to an embodiment of the present invention. FIG. 1 is an exploded perspective view, FIG. 2 is a side sectional view, FIG. 3 is a plan sectional view, and FIG. Is an enlarged view of part A of FIG. 3, FIG. 5 is a front sectional view, and FIG. 6 is a perspective view.

As shown in FIGS. 1 to 4, the dust collecting mechanism in the polishing board of the present invention comprises a machine stand 10, a dust collecting drum 20, an internal motor 30, an exhaust fan 40, and a blower 50.

In the present embodiment, the machine base 10 is made to have an appropriate size corresponding to the dust collecting range, and has a storage space 11 therein, and is separated from an upright side surface of the storage space 11 by an appropriate distance. And the fixed plate 12 is erected vertically to make the storage space 11 a large storage space.
111 and a small storage space 112, and the drive motor 70 is attached to a position near the side edge of the fixed plate 12 at the bottom end of the large storage space 111, and the sprocket 71 is attached to the output end of the drive motor 70, and Two pull-out type dust collecting boxes 90 that can be pulled out and pressed are provided below the bottom ends of both sides of the drive motor 70. On the other hand, the fixing plate 12 has one or more circular intake holes 13 (two in this embodiment are formed), and extends from the inner peripheral wall of the intake hole 13 toward the large storage space 111. Out and extend four ridges 131 each, and each ridge 131
The bearing 60 is fixed to the 131, the ring groove 61 is provided on the peripheral surface of the bearing 60, and the protruding ring 18 is provided on the peripheral edge of the intake hole 13 of the fixed plate 12 having the intake hole 13 formed therein. Further, a fastening plate 14 having an appropriate width and having a shaft hole 141 in the intake hole 13 is provided along the diameter thereof. On the other hand, upright side walls that surround the four sides of the machine base 10
15 A horizontal workbench surface 100a is laid across the top and the workbench surface
A plurality of through holes 101 are formed only in a portion of the large storage space 111 that covers the large storage space 111, and air passages 16 that communicate with each other are provided inside the top edges of the four side walls 15 and the openings of the air passages 16 are formed.
16 1 is oriented toward the center of the top end surface of the machine base 10 and the small storage space 11
Vent at the top of one side wall 15 connected to the large storage space 111
17 is provided and communicates with the wind passage 16. Further, a silencer 110 formed of a plurality of layers of non-woven fabric is provided on one side wall surface of the small storage space 112 facing the fixed plate 12.

In this embodiment, two dust collecting net drums 20 are provided corresponding to the intake holes 13, are cylindrical with an opening on one end face, and have a ring-shaped engagement at the periphery of the opening. A mating portion 21 is provided, and the engaging portion 21 has a raised ring 18
Is formed in such a manner that the corresponding raised ridge 23 is formed in a shape corresponding to the above, and the raised ring 18 and the raised ridge 23 are adhered to each other to be fitted with a protective shield 100 having a U-shaped cross section to perform a dustproof function. There is.
A filter mesh 22 is provided over the other end and the peripheral wall of the dust collecting drum, and an annular convex edge 211 is provided on the inner peripheral wall surface on the one end side in a direction orthogonal to the axis, and a ring groove 61 of the bearing 60 is provided. It is fitted inside. Further, the dust collecting drum 20 is supported on the side wall of the fixed plate 12 using the four bearings 60,
A chain gear 212 is fitted on the outer peripheral surface of the engaging portion 21, and the sprocket 71 of the drive motor 70 drives the chain 80 to drive the bearing.
I am trying to rotate around 60.

The internal motor 30 is fixedly mounted on the engaging plate 14 and is installed inside the dust collecting net drum 20, and the axial centers thereof are extended to both ends thereof. One of the axes is a locking plate
14 through the shaft hole 141, the tip of which protrudes into the small storage space 112 and is connected to the blower 40, and the other shaft center is connected to the blower 50 and is similarly enclosed in the dust collecting drum 20. There is. Both the blower 40 and the blower 50 are provided with blades 41 and 51 inside, and the blade 41 of the blower 40 is provided with an outlet 42 of an appropriate size at the bottom end of the storage chamber, and the blades of the blower 50 are provided. 51 A rectangular exhaust port 52, which extends in the axial direction of the dust collecting drum 20 and is connected to and communicates with the peripheral surface of the storage chamber, is formed downward.

Then, as shown in FIGS. 2 and 5, when the drive motor 70 is started, the sprocket 71 at the output end thereof is
Through the chain 80, the chain gear 212 on the outer peripheral edge of the dust collecting drum 20.
The two dust collecting drums 20 rotate synchronously and in the same direction. The annular tongue 211 of the dust collecting drum 20 is the ring groove of the bearing 60.
Since the fitting is regulated in 61, the dust collection drum 20 is smoothly driven by the action of the bearing 60.

Further, at the same time when the drive motor 70 is started, the internal motor 30 of the dust collecting net drum 20 is also started to rotate together, and each of the exhaust fan 40 and the blower 50 connected to the shaft center extending from both ends. The blades 41, 51 also rotate at the same time.
As a result, when the blades 41 of the blower 40 are activated, air containing dust is sucked into the dust collecting drum 20 through the filter net 22,
Furthermore, it passes through the intake hole 13 and finally is a small storage space from the outlet 42.
Blow out at 112. On the other hand, the blower 50 is the dust collecting drum 20
Since it is connected and communicated with the outward-oriented rectangular exhaust port 52 extending in the axial direction of, the internal motor 30 is activated,
The clean air that has been filtered and that has flowed into the dust collecting drum drum 20 forms a wind force through the rectangular exhaust port 52, and is locally concentrated while rotating to form high-pressure air toward the inner circumferential wall of the dust collecting drum drum 20. To spray. As a result, the abrasive dust adhering to the outer wall surface of the filter net 22 was blown off and dropped into the dust collecting box 90 below, and the dust adhering to the filter net 22 was blown off by the mutual adsorption action of particles. Even when it is peeled off,
Instead of scattering, it falls into the dust collection box 90 and is stored.

Further, as shown in FIG. 2, when clean air is blown into the small storage space 112 from the air outlet 42 of the exhaust fan 40, the small storage space 112 is in a sealed state. Air is a ventilation hole provided at the top end of the side wall 15 of the small storage space.
Take windway 16 from 17. In addition, since the air passages 16 on all four sides of the side wall 15 are in communication with each other, rapid air is blown out from the openings 161 of the air passage 16 to form air curtains on the four top end faces of the machine base 10 and the top end of the machine base 10. Air containing dust is intensively sucked in from above the center of the surface, and the dust does not scatter to the outside of the top end surface of the machine stand 10 and is smoothly sucked into the dust collecting net drum 20 for continuous filtration. it can.

Therefore, as can be seen from the above description, the structure of the present invention is simple, the manufacturing is easy, the manufacturing cost can be reduced, and the dust in the air can be effectively absorbed and separated. Furthermore, the clean air blown out from the air exhaust unit 40 is used to intensively inhale the dust-containing air from above the center of the top surface of the machine base 10, so that the energy recovery and utilization effect is excellent. And most importantly, when the filtered and cleaned air is sent into the small storage space 112, most of the noise in the dust collecting mechanism that is transmitted into the air is silenced by the silencer 110.
It is absorbed by the non-woven fabric and only part of it goes through the ventilation holes 17
It escapes from the machine stand 10 from 16. Therefore, by installing the silencer 110, it is possible to prevent the generation of noise,
It can meet the demand for environmental protection.

FIG. 6 is a perspective view of an embodiment of the present invention.
The silencer 110 and the work surface 10
Wind passages 16 and openings 16 provided on the top edges of the four side walls of 0a
1 is formed, and when the filtered air is blown out from the opening 161, an air curtain is formed at the top edge of the side wall of the worktable 100 a on all sides, and a small amount of dust remaining in the air is released from the exhaust air. The exhaust fan 40 inside the machine base 10
The suctioned air drops onto the workbench surface 100a and accumulates it, or flows into the machine base 10 and circulates, and the discharged air becomes clean with almost no dust.

7 and 8 are views showing another embodiment of the present invention. As shown in the drawing, the side wall of the machine base 10 on the side of the small storage space 112 is extended upward to form a trapezoidal convex seat. 10a is formed, and an opening 10a of an appropriate length is formed on the inner surface of the top of the raised seat 10a.
c is provided. In this embodiment, a plurality of through holes 101 are distributed on the work surface 100a, and the air passages 16 are provided on the four side edges.
If the openings 161 and the openings 161 are formed in the same manner as in the above-described embodiment, the air curtain is formed upwards on the workbench surface 100a and can be mixed in the air blown out from the air passage openings 161 at the top edges of the four side walls of the machine base 10. The dust collecting effect is further improved because it is possible to scatter on the work surface 100a and blow it into the machine base 10 to circulate and filter it without scattering a minute amount of dust that has a certain property.

[0025]

Since the present invention is constructed as described above, when the drive motor is started, air with dust is sucked into the large storage space of the machine table from the work table surface,
Dust in the air is filtered and adhered to the mesh of the dust collecting mesh drum which is driven to rotate. On the other hand, the cleaned air is blown into the exhaust fan that is interlocked by the internal motor that rotates in synchronization with the drive motor and discharged into the small storage space, and further passes through the ventilation holes provided in the small storage space and into the air passage. Diffusion-filled, air flows toward the center of the work surface from the opening of the wind passage,
Blow out while forming the curtain. Therefore, the dust on the workbench surface is sucked into the large storage space without scattering. Further, the dust adhered to the outer peripheral surface of the dust collecting net drum driven and rotated by the drive motor is formed by a rapid air flow blown out from the elongated downward rectangular exhaust port of the blower which is operated in synchronization with the exhaust fan. The wind force that blows the air from the inside of the dust collection drum allows it to be peeled off and accumulated, which has the effect of not causing air pollution and eliminates the need to install a compressed air generator as in the conventional system. It has the effect of reducing costs.

Further, a plurality of bearings extending from the peripheral surface into the large storage space are fixedly mounted in the respective intake holes of the fixing plate to rotatably fit and hold the dust collecting drum, and Since the muffler made of multiple layers of non-woven fabric is installed on the wall surface of the small storage space facing the fixed plate, the rotating movement of the dust collection drum becomes smoother, and it is generated in the machine base and is discharged to the air. It can mute transmitted noise.

Further, the side wall of the machine base on the side of the small storage space is extended upward to form a raised seat having a trapezoidal side surface, and a plurality of air passages are formed inside the raised seat to form the raised seat. By providing an opening of an appropriate length on the inward side of the seat top end so as to communicate with each of the above-mentioned air passages, a small amount that may be included in the air blown out from the air passage openings at the top end edges of the four side walls of the machine base There is an effect that the dust of the above can be retained on the work table surface, sucked into the machine table, circulated and filtered, without being scattered.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a dust collecting mechanism according to an embodiment of the present invention.

2 is a side sectional view of the embodiment of FIG.

3 is a cross-sectional plan view of the embodiment of FIG.

FIG. 4 is an enlarged view of a portion A of FIG.

5 is a front sectional view of the embodiment of FIG.

6 is an external perspective view of the embodiment of FIG.

FIG. 7 is a perspective view of another embodiment of the present invention.

FIG. 8 is a side sectional view of another embodiment of the present invention.

[Explanation of symbols]

 10 Machine stand 10a Projection seat 10c Projection seat opening 100a Work surface 101 Work table surface through hole 110 Silencer 111 Large storage space 112 Small storage space 12 Fixing plate 13 Air intake hole 15 Machine side wall 16 Machine side wall Top edge Wind passage 161 Wind passage opening at the top edge of the machine base side wall 17 Ventilation opening that communicates with the air passage 20 Dust collection drum 30 Internal motor 50 Blower 52 Blower exhaust outlet 60 Bearing 70 Drive motor

Claims (4)

[Scope of utility model registration request] 1. A hollow interior of a rectangular machine stand is partitioned by an upright fixing plate into large and small storage spaces, and at least one intake hole is provided in the fixing plate, and the intake hole is closer to the large storage space. One or more dust collecting drums in the transverse and orthogonal directions are rotatably supported by a cantilever shaft, and the motor is concentrically supported inside the dust collecting drum, and both rotary shaft outputs of the internal motor are supported. The ends are extended into the small storage space and the large storage space, respectively, and the exhaust fan is connected to the end of the small storage space and the blower is connected to the end of the large storage space so that the exhaust port of the blower is connected. An air passage is formed in a slender rectangular shape downward along the axis of the dust collecting drum drum, and winds around the four side walls of the machine base along the inner edges of the top edges of the machine base. The small storage space that directs air toward the air and communicates with the wind passage. The work table is formed so as not to block the ventilation hole provided in the space, and the work table surface is formed inside the peripheral edge of the top end, and a plurality of through holes are formed over the entire surface of the work table surface covering the large storage space. A dust collecting mechanism in the glossing board that is installed. 2. A plurality of bearings extending from the peripheral surface to the large storage space are fixedly mounted in the respective intake holes of the fixed plate to rotatably fit and hold the dust collecting net drum, and 2. The dust collecting mechanism for a polishing board according to claim 1, wherein a sound deadening device made of a plurality of layers of non-woven fabric is provided on the wall surface of the small storage space facing the fixing plate. 3. The side wall of the machine base on the side of the small storage space extends upward to form a raised seat having a trapezoidal side surface, and a plurality of ventilation paths are formed inside the raised seat. Claim 1
Dust collection mechanism in the above-mentioned polishing board. 4. The dust collecting mechanism for a polishing board according to claim 3, wherein an opening having an appropriate length is provided on the inward side surface of the convex seat top end so as to communicate with each of the air passages.