CN209970997U

CN209970997U - Dust suction device

Info

Publication number: CN209970997U
Application number: CN201920343595.9U
Authority: CN
Inventors: 倪波; 樊伟忠; 岑益飞
Original assignee: Ningbo Bai Chu Integrated Kitchen Co Ltd
Current assignee: Ningbo Bai Chu Integrated Kitchen Co Ltd
Priority date: 2019-03-18
Filing date: 2019-03-18
Publication date: 2020-01-21
Anticipated expiration: 2029-03-18

Abstract

The embodiment of the utility model discloses a dust extraction belongs to industry dust collecting equipment field, has solved the problem of the unable clean-up wood chip dust that inhales the plank milling type position of current dust collecting equipment, and its technical scheme main points are: the dust collector comprises an outer cover with a dust collection port opened at one end, wherein the other end of the outer cover is communicated to a dust outlet pipe and is communicated to a suction device through the dust outlet pipe, an inner cover arranged at an interval with the outer cover is arranged in the outer cover, one end of the inner cover on the same side with the dust collection port is opened and is provided with an opening, a blowing mechanism is arranged in the inner cover and comprises a gas outlet opening towards the inner cover, the blowing mechanism is communicated to one end of a gas inlet pipe, the other end of the gas inlet pipe is connected with an external gas source, gas of the external gas source is blown out from the gas outlet through the gas inlet pipe, and dust is sucked; the utility model provides a dust extraction can absorb the dust extraction of the remaining saw-dust of plank milling type position, and then reduces the processing environment of saw-dust to the workshop and the influence of air quality.

Description

Dust suction device

Technical Field

The utility model relates to an industry dust collecting equipment, in particular to dust extraction.

Background

The slicer is often used in plank course of working, the edging machine, the grinder, plank processing machinery such as engraver, generally all need be equipped with dust collecting equipment on these plank processing machinery, dust collecting equipment is used for siphoning away the saw-dust that produces in the course of working, current dust collecting equipment is including the cover body and dust absorption pipeline, in order to guarantee the scope of dust absorption, this kind of dust collecting equipment's dust absorption mouth is just great, will lead to the suction of dust absorption pipeline not enough, dust collecting equipment can not mill the plank and put the saw-dust on surface completely to inhale completely, there is more saw-dust to remain on the surface that the plank milled the type position, remaining saw-dust can produce certain influence to next manufacturing procedure.

In order to avoid the influence of residual sawdust dust on subsequent processing procedures, a method in the prior art is to blow off the sawdust dust on the surface of the milling position of the wood board by holding an air gun by a worker, but in the process of blowing by using the air gun, the dust can be raised, the environment and the air quality of a workshop are seriously affected, and the health of the worker is affected.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that an improve dust absorption ability is provided, can absorb the dust extraction of the remaining saw-dust of plank milling type position, and then reduce the processing environment in saw-dust to the workshop and the influence of air quality.

The utility model provides a technical scheme that above-mentioned technical problem adopted does:

the dust suction device comprises an outer cover with one open end and a dust suction port, wherein the other end of the outer cover is communicated to a dust discharge pipe, the dust discharge pipe is communicated to a suction device, an inner cover is arranged in the outer cover and is spaced from the outer cover, an opening is formed in one end of the inner cover, which is at the same side with the dust suction port, an air blowing mechanism is arranged in the inner cover and comprises a gas outlet facing the opening of the inner cover, the air blowing mechanism is communicated to one end of a gas inlet pipe, the other end of the gas inlet pipe is connected with an external gas source, gas of the external gas source is blown out from the gas outlet through the gas inlet pipe, and dust is sucked into the dust discharge pipe from a gap between the inner.

In order to blow up all the residual saw-dust at the milling position of the board and improve the dust absorption effect of the dust absorption device, the blowing mechanism comprises a connecting pipe and a rotating arm, the connecting pipe is connected with an inner cover, one end of the connecting pipe is communicated to the air inlet pipe, the rotating arm is vertically arranged with the connecting pipe, the other end of the connecting pipe is connected with the middle position of the rotating arm through a bearing, the connecting pipe is communicated with the rotating arm, the rotating arm is provided with an air outlet, and the rotating arm is driven by power of an air source to blow air around the axial rotation of the connecting pipe and towards the outside of an opening of the inner cover relative.

Preferably, the air outlet is provided on one side of the circumferential surface of the rotating arm facing the opening of the inner cover, and a plurality of air outlets are provided at intervals along the length direction of the rotating arm, the axial direction of the air outlet is inclined toward both sides of the rotating arm with respect to the axial direction of the connecting pipe, and the inclination direction of the air outlet on one side of the connecting pipe with respect to the axial direction of the connecting pipe is opposite to the inclination direction of the air outlet on the other side of the connecting pipe with respect to the axial direction of.

Preferably, on a radial cross section of the rotating arm, an included angle (α) between an axial direction of the air outlet and an axial direction of the connecting pipe is 12 to 17 degrees.

Preferably, the connecting pipe, the inner cover and the outer cover are all coaxially arranged.

Preferably, the ratio of the outer diameter of the inner cover to the inner diameter of the outer cover is 12/19-15/19.

In order to make the whole structure of the dust suction device more compact and convenient to hold by hands, part of the air inlet pipe is positioned in the dust outlet pipe and extends in the same direction with the dust outlet pipe, and the air inlet pipe is communicated with the air blowing mechanism through the inner cover.

In order to avoid the dust-collecting device in the dust-collecting process, the wood dust is in the air, and the edge of the dust-collecting opening of the outer cover is surrounded by the hairbrush.

Preferably, the outer side wall of the inner cover is provided with a butt block protruding towards the outer cover.

Preferably, the gas inlet pressure of the gas source is 6 +/-0.5 MPa; the air source is an air compressor or an air pump; the air suction device is a dust removal system or an exhaust fan of a workshop.

Compared with the prior art, the utility model provides a dust extraction's advantage lies in this dust extraction, owing to be equipped with gas blowing device in the dust absorption dustcoat, and then can blow up the dust better and from going out dirt pipe suction, whole dust absorption process goes on in dustcoat and brush, has still avoided during saw-dust raise dust arrives the air, has protected the production environment and the air quality in workshop, and simultaneously, this dust extraction can handheld use, the staff of being convenient for control the position of dust absorption.

Drawings

Fig. 1 is a schematic structural view of a dust suction device in an embodiment of the present invention.

Fig. 2 is a schematic sectional view of a dust suction device according to an embodiment of the present invention.

Fig. 3 is a schematic sectional view of a dust suction device according to an embodiment of the present invention.

Fig. 4 is a schematic cross-sectional view of a rotary arm according to an embodiment of the present invention.

In the figure, 1, a housing; 2. a dust outlet pipe; 3. an inner cover; 31. a butting block; 4. a blowing mechanism; 41. a connecting pipe; 42. a rotating arm; 43. a bearing; 421. an air outlet; 5. an air inlet pipe; 51. an intake valve; 6. and a brush.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

A dust suction device comprises an outer cover 1 with one end opened and a dust suction opening, wherein the other end of the outer cover 1 is communicated to a dust outlet pipe 2 and communicated to a suction device through the dust outlet pipe 2, an inner cover 3 arranged at an interval with the outer cover is arranged in the outer cover 1, the inner cover 3 is coaxial with the outer cover 1, and one end of the inner cover 3, which is at the same side with the dust suction opening, is opened and provided with an opening, as shown in figures 1-3. Be equipped with blowing mechanism 4 in the inner cover 3, blowing mechanism 4 includes towards the gas outlet 421 of inner cover 3 open-ended, and blowing mechanism 4 communicates to the one end of intake pipe 5, and the other end of intake pipe 5 is connected external air supply, and the gas of external air supply passes through intake pipe 5 is followed gas outlet 421 blows out, and the dust inhales out dirt pipe 2 and then discharges from the clearance between inner cover 3 and the outer cover 1. Wherein, the air source and the air suction device are not shown in the figure, the air source can be an air compressor or an air pump, and the air inlet pressure is set to be 6 +/-0.5 MPa. The air suction device can be a dust removal system or an exhaust fan in a workshop, and the air speed is 25 m/s.

When the dust collector works, the air source is opened, air is sprayed out from the air outlet 421 to blow up the residual wood dust at the wood milling position, the air suction device is opened to reduce the air pressure between the dust outlet pipe 2 and the outer cover 1 and the inner cover 3, the blown-up wood dust is sucked into the dust outlet pipe 2 through the gap between the inner cover 3 and the outer cover 1, and finally the blown-up wood dust is sucked out and collected by the air suction device. Through the setting of this mechanism of blowing 4, blow the back with the saw-dust and be siphoned out through going out dirt pipe 2, can strengthen the suction effect to the saw-dust.

The air blowing mechanism 4 includes a connecting pipe 41 and a rotating arm 42, the connecting pipe 41 is connected with the inner cover 3 and coaxial with the inner cover 3, and one end of the connecting pipe 41 is communicated to the air inlet pipe 5, the rotating arm 42 is vertically arranged with the connecting pipe 41, the other end of the connecting pipe 41 is connected with the middle position of the rotating arm 42 through a bearing 43, the connecting pipe 41 is communicated with the rotating arm 42, the rotating arm 42 is provided with the air outlet 421, and the rotating arm 42 is driven by the power of an air source to blow air around the axial rotation of the connecting pipe 41 and towards the outside of the opening of. As shown in fig. 4, the air outlets 421 are provided on the side of the peripheral surface of the rotating arm 42 that is open toward the inner cover 3, and are provided in plurality at intervals along the longitudinal direction of the rotating arm 42, the axial direction of the air outlets 421 is inclined toward both sides of the rotating arm 42 with respect to the axial direction of the connecting pipe 41, and the inclination direction of the air outlets 421 on one side of the connecting pipe 41 with respect to the axial direction of the connecting pipe 41 is opposite to the inclination direction of the air outlets 421 on the other side with respect to the axial direction. Preferably, on the radial section of the rotating arm 42, the included angle (α) between the axial direction of the air outlet 421 and the axial direction of the connecting pipe 41 is 12 degrees to 17 degrees, wherein the dust collection effect is the best when the included angle (α) is 15 degrees. The blowing mechanism 4 can further comprise a plurality of rotating arms 42, when the air outlet 421 blows air, the rotating arms 42 can receive reaction force from the air blowing, the rotating arms 42 can rotate around the shaft of the connecting pipe to blow up the wood chip dust on different directions of the wood board, and the capability of blowing the wood chip dust by the blowing mechanism 4 is enhanced, so that the dust collection capability of the dust collection device is improved.

It will also be understood by those skilled in the art that the air blowing mechanism 4 does not have to adopt the structure of the rotating arm 42, but only has the air outlet 421 to blow the dust and wood chips out for being sucked into the dust outlet pipe 2.

The outer side wall of the inner cover 3 is provided with a plurality of abutting blocks 31 protruding towards the outer cover 1, preferably, the abutting blocks 31 are arranged at intervals along the circumferential direction of the outer side wall of the inner cover 3, the abutting blocks 31 extend along the axial direction of the inner cover 3, and the abutting blocks 31 abut against the inner wall of the outer cover 1 and are used for limiting and keeping the interval between the inner cover and the outer cover unchanged.

In order to make the whole structure of the dust suction device more compact and convenient to hold by hand, part of the air inlet pipe 5 is positioned in the dust outlet pipe 2 and extends in the same direction with the dust outlet pipe 2, and the air inlet pipe 5 is communicated with the air blowing mechanism 4 through the inner cover 3. An opening for extending one end of the air inlet pipe 5 is arranged on the dust outlet pipe 2, the air inlet pipe 5 is connected with an air inlet valve 51 for controlling air inlet or stopping air inlet after extending out of the opening of the dust outlet pipe 2, and when the dust collection device is used by a worker, an air source is opened or closed.

Because the milling type position shape of plank is different, can appear dustcoat 1 and can't form the situation of enclosure space on the plank surface, lead to the saw-dust to blow off from the clearance between dustcoat 1 and the plank, in order to solve this problem, enclose at the dust absorption mouth border of this dustcoat 1 and establish brush 6, brush 6 can be laminated the surface by the dust absorption better, brush 6, dustcoat 1 circle out dust absorption space on the plank surface and remove dust, further avoid dust absorption in-process raise dust to the air.

In order to optimize the dust suction effect, the ratio of the outer diameter of the inner cover 3 to the inner diameter of the outer cover 1 is 12/19-15/19, and preferably, the ratio of the outer diameter of the inner cover 3 to the inner diameter of the outer cover 1 is 14/19.

Although the preferred embodiments of the present invention have been described in detail hereinabove, it should be clearly understood that modifications and variations of the present invention are possible to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a dust extraction, includes that one end opens dustcoat (1) that has the dust absorption mouth, the other end of dustcoat (1) communicates to a dirt pipe (2), through a dirt pipe (2) communicate to the getter device, its characterized in that: be equipped with inner cover (3) that set up with dustcoat (1) interval in dustcoat (1), inner cover (3) open with the one end of dust absorption mouth homonymy has the opening, be equipped with blowing mechanism (4) in inner cover (3), blowing mechanism (4) are including the orientation inner cover (3) open-ended gas outlet (421), blowing mechanism (4) communicate to the one end of intake pipe (5), the other end of intake pipe (5) is connected external air supply, the gas of external air supply passes through intake pipe (5) are followed gas outlet (421) blow off, and the dust inhales out dirt pipe (2) and then discharges from the clearance between inner cover (3) and dustcoat (1).

2. The suction device as claimed in claim 1, wherein: the air blowing mechanism (4) comprises a connecting pipe (41) and a rotating arm (42), the connecting pipe (41) is connected with the inner cover (3), one end of the connecting pipe (41) is communicated to the air inlet pipe (5), the rotating arm (42) is vertically arranged with the connecting pipe (41), the other end of the connecting pipe (41) is connected with the middle position of the rotating arm (42) through a bearing (43), the connecting pipe (41) is communicated with the rotating arm (42), the rotating arm (42) is provided with an air outlet (421), and the rotating arm (42) is driven by power of an air source to blow air around the axial direction of the connecting pipe (41) and towards the outside of an opening of the inner cover (3) relative to the connecting pipe (41).

3. The suction device as claimed in claim 2, wherein: the gas outlet (421) is arranged on one side of the peripheral surface of the rotating arm (42) facing the opening of the inner cover (3), and a plurality of gas outlets are arranged at intervals along the length direction of the rotating arm (42), the axial direction of the gas outlet (421) is inclined towards the two sides of the rotating arm (42) relative to the axial direction of the connecting pipe (41), and the gas outlet (421) on one side of the connecting pipe (41) is opposite to the inclined direction of the gas outlet (421) on the other side relative to the axial direction of the connecting pipe (41).

4. A suction device according to claim 3, wherein: on the radial section of the rotating arm (42), an included angle (alpha) between the axial direction of the air outlet (421) and the axial direction of the connecting pipe (41) is 12-17 degrees.

5. The dust suction apparatus as claimed in claim 3 or 4, wherein: the connecting pipe (41), the inner cover (3) and the outer cover (1) are coaxially arranged.

6. The suction device as claimed in claim 5, wherein: the ratio of the outer diameter of the inner cover (3) to the inner diameter of the outer cover (1) is 12/19-15/19.

7. The suction device of claim 6, wherein: the part of the air inlet pipe (5) is positioned in the dust outlet pipe (2) and extends in the same direction with the dust outlet pipe (2), and the air inlet pipe (5) is communicated with the air blowing mechanism (4) through the inner cover (3).

8. The suction device as claimed in claim 1, wherein: the dust collection opening edge of the outer cover (1) is surrounded by a brush (6).

9. The suction device as claimed in claim 1, wherein: and the outer side wall of the inner cover (3) is provided with a butting block (31) protruding towards the outer cover (1).

10. The suction device as claimed in claim 1, wherein: the air inlet pressure of the air source is 6 +/-0.5 MPa, and the air source is an air compressor or an air pump; the air suction device is a dust removal system or an exhaust fan of a workshop.