CN103386642B - Dust collection type grinder - Google Patents
Dust collection type grinder Download PDFInfo
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- CN103386642B CN103386642B CN201210141678.2A CN201210141678A CN103386642B CN 103386642 B CN103386642 B CN 103386642B CN 201210141678 A CN201210141678 A CN 201210141678A CN 103386642 B CN103386642 B CN 103386642B
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- China
- Prior art keywords
- dust
- tube connector
- runner
- collecting cylinder
- collecting
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Abstract
The invention provides a kind of Dust collection type grinder, comprise housing and motor, dust-collecting mechanism and jet mechanism, can for input Compressed Gas, Compressed Gas is utilized to drive motor running, further drive abrasive disk rotates, also utilize the Compressed Gas of input to drive air-flow around simultaneously, ambient air is sucked together with dust and chip, use acquisition dust collecting effect, wherein, the present invention is before Compressed Gas enters and drives motor running, in advance Compressed Gas is shunted, for driving air-flow control of dust, not only obtain preferably dust collecting effect, more can avoid or reduce the impact on motor rotary speed, there is splendid result of use.
Description
Technical field
The present invention relates to a kind of Dust collection type grinder, belong to hand-held grinding machine technology field.
Background technology
Grinder is the instrument by abrasive sheet rotation or movement in order to buffing work-piece surface, in known grinder, part grinder is had to be utilize revolution abrasive sheet for polishing, the gas jet that simultaneously motor can be utilized to discharge, is with moving air flow and the dust produced during buffing work-piece or chip is sucked, being collected in pipeline rear end, to avoid affecting working environment, such as US6, namely belongs to this type of grinder described in 004, No. 197 patents.
But, this type of grinder being attached with dust collection function but easily has the problem that motor running speed is lower or dust collecting effect is not good, this problem produces point and is in this type of grinder, owing to needing to utilize the gas jet of discharging, and band moving air flow, if for obtaining stronger pull of vacuum, improve dust collecting effect, then need the pressure improving motor exhaust apertures, now will reduce the pressure differential between motor air inlet and exhaust outlet, the rotating speed of motor is reduced, causes the horsepower of grinder to decline; Relatively, if for maintaining higher rotating speed and horsepower, then must improve the pressure differential between motor air inlet and exhaust outlet, and need the pressure reducing motor exhaust apertures, now because exhaust port pressure is lower, will the pull of vacuum of control of dust be declined, and cause the not good problem of dust collecting effect, for the grinder rotating speed of above-mentioned dust collection function and the conflicting design defect of suction, there is the necessity improved in fact.
Summary of the invention
Main purpose of the present invention is to provide a kind of grinder, can maintain the rotating speed of motor, has again good dust collecting effect concurrently simultaneously.
For reaching above-mentioned purpose, the invention provides a kind of Dust collection type grinder, including housing, motor, dust-collecting mechanism and jet mechanism.
This motor is located in this housing, this housing has the gas flow corresponding with this motor, this gas flow comprises at least one air inlet runner, this air inlet runner inputs for Compressed Gas and drives this motor running, and this motor has axle, and this axle is to downward-extension, an abrasive disk can be driven during this central axis to rotate, this housing has guard shield, and this guard shield is around this axle bottom, and the side of this guard shield is formed with dust collecting opening.
This dust-collecting mechanism comprises tube connector, and this tube connector has first end and the second end, and this first end is connected to this dust collecting opening.
This jet plane has been configured to jet runner, and this jet runner is connected between this air inlet runner and this tube connector, and Compressed Gas can be sprayed in this tube connector via this air inlet runner and this jet runner, drives the air in this tube connector to flow towards this second end.
This jet mechanism comprises control valve, in order to control the gas flow of this jet runner.
This housing has starter gate valve, and in order to whether to control the opening of this gas flow, this jet runner is connected to the downstream part relative to this starter gate valve in this air inlet runner.
This dust-collecting mechanism also comprises dust-collecting cylinder, second end of this tube connector is connected to this dust-collecting cylinder, this dust-collecting cylinder has exhaust outlet, and the air in this guard shield can enter this dust-collecting cylinder via this dust collecting opening and this tube connector, and after this dust-collecting cylinder filters, warp is discharged by this exhaust outlet again.
This dust-collecting cylinder has tubular inner surface, this tube connector in the center extension line of the second end and the center line of this inner surface non-intersect and not parallel.
This dust-collecting cylinder has the baffle plate of tubulose, this accommodation space is divided into interior room and outer room by this baffle plate, this outer room is between this inner surface and this baffle plate, second end of this tube connector is connected to this outer room, wherein one end of this baffle plate is connected to this exhaust outlet, the other end of this baffle plate is free and open, and this interior room is connected with this outer room.
Common vertical line along this tube connector in the second end center extension line and this inner surface center line is watched, and the angle of this tube connector between the second end center extension line and this inner surface center line is greater than 60 degree.
The volume of this dust-collecting cylinder is not more than three times of the volume of this housing.
By this, Compressed Gas is just shunted in advance by the present invention before Compressed Gas enters motor, leader gas is used for jet control of dust, make jet airflow rate high, obtain preferably dust collecting effect, meanwhile, the exhaust outlet due to motor is not subject to extra obstruction, make the smooth in exhaust of motor, and the rotating speed of motor can be maintained.
Accompanying drawing explanation
Fig. 1 is stereogram of the present invention.
Fig. 2 is three-dimensional exploded view of the present invention.
Fig. 2 A is another view stereo of tube connector of the present invention figure.
Fig. 3 is the three-dimensional exploded view of dust-collecting cylinder in the present invention.
Fig. 4 to Fig. 6 is the sectional view at each position of the present invention.
Fig. 7 is the sectional view of dust-collecting cylinder in the present invention.
Fig. 8 is airflow direction schematic diagram of the present invention.
Fig. 9 is the airflow direction schematic diagram of dust-collecting cylinder in the present invention.
Figure 10 is the second embodiment schematic diagram of dust-collecting cylinder in the present invention.
Figure 11 is the 3rd embodiment schematic diagram of dust-collecting cylinder in the present invention.
[Main Reference Numerals explanation]
1: housing 312: bending segment
11: body 313: second segment
111: protuberance 32: dust-collecting cylinder
112: guard shield 321: diapire
113: dust collecting opening 322: perisporium
12: extension 323: lid
121: air inlet runner 324: regulating valve
122: grate flow channel 325: baffle plate
13: switch 326: through hole
131: pressing plate 33: dust-collecting cylinder
132: starter gate valve 331: filter screen
14: air bleeding valve 34: dust-collecting cylinder
141: duct 341: filter screen
2: motor 41: jet runner
21: axle 411: lead segment
22: auxiliary spindle 412: cannelure
23: abrasive disk 413: pore
3: dust-collecting mechanism 42: control valve
31: tube connector 421: centre bore
311: first paragraph 422: passage
Detailed description of the invention
Below only with embodiment, the form of implementation that the present invention is possible is described, but and be not used to limit the present invention institute for protection category, conjunction first chat bright.
Please refer to Fig. 1 to Fig. 7, the invention provides a kind of Dust collection type grinder, comprise housing 1, motor 2, dust-collecting mechanism 3 and jet mechanism.
Please refer to Fig. 1 and Fig. 2, this housing 1 has body 11, extension 12, switch 13 and air bleeding valve 14, the top side of this body 11 forms circular arc protuberance 111, grip for user, chamber is provided with in this body 11, be installed in wherein for motor 2, this body 11 is provided with the guard shield 112 to downward-extension further, and the side of this guard shield 112 is provided with dust collecting opening 113.This extension 12 is located at the side of body 11, further this extension 12 is provided with gas flow and the switch corresponding with gas flow 13 and air bleeding valve 14.Please refer to Fig. 4 and Fig. 5, the gas flow of this extension 12 includes air inlet runner 121 and grate flow channel 122, air inlet runner 121 extends to the chamber in body 11 from external environment condition, can for connecting compressed gas source, make Compressed Gas can input in chamber via air inlet runner 121, this grate flow channel 122 is connected between the chamber in external environment condition and body 11 equally, can for the gas in chamber via grate flow channel 122 externally environmental emission, wherein said external environment condition refers to the surrounding environment beyond grinder.This switch 13 comprises pressing plate 131 and starter gate valve 132, extension 12 is located at swingably by this pressing plate 131, this starter gate valve 132 be located at this extension 12 and the opening that can control air inlet runner 121 whether, starter gate valve 132 can be pressed downwards when this pressing plate 131 swings, make the open air inlet runner 121 of starter gate valve 132, and make Compressed Gas can flow over this air inlet runner 121.Please refer to Fig. 2 and Fig. 4, this air bleeding valve 14 has the duct 141 run through, this air bleeding valve 14 is located at this extension 12 and can be controlled the open situation of grate flow channel 122, this air bleeding valve 14 is rotatable, duct 141 is made to favour grate flow channel 122 gradually, make the perisporium in duct 141 block grate flow channel 122 gradually, change the open situation of grate flow channel 122.
Please refer to Fig. 4 and Fig. 6, this motor 2 has axle 21, this motor 2 is located in the chamber of body 11, make motor 2 corresponding with the gas flow of housing, Compressed Gas can input via air inlet runner 121, motor 2 is driven to operate, outwards discharge via grate flow channel 122 again, described drive motor 2 running refers to CD-ROM drive motor 2 and the axle 21 of motor is rotated, the axle 21 of this motor extends downward in guard shield 112, make guard shield 112 around axle 21 bottom, the bottom of this axle 21 is equiped with auxiliary spindle 22 and abrasive disk 23 further, abrasive disk 23 can be driven to rotate when this axle 21 is rotated.
Please refer to Fig. 1 to Fig. 3, this dust-collecting mechanism 3 comprises tube connector 31 and dust-collecting cylinder 32.This tube connector has first end and the second end, first paragraph 311, bending segment 312 and second segment 313 is sequentially connected with by first end to the second end, wherein this first end group is connected to the dust collecting opening 113 of housing in succession, second end is then connected to dust-collecting cylinder 32, dust-collecting cylinder 32 is made to be set up the side being positioned at housing, make the air in this guard shield 112 can enter this dust-collecting cylinder 32 via this dust collecting opening 113 with this tube connector 31, discharge after this dust-collecting cylinder 32 filters again, preferably, the volume of dust-collecting cylinder 32 is not more than three times of housing, so that for user's hand-held.In the present embodiment, tube connector connects as one with second segment 313 and dust-collecting cylinder 32, but second segment 313 and dust-collecting cylinder 32 also can change with assembly and connection harmless.
Please refer to Fig. 3 and Fig. 7, this dust-collecting cylinder has the perisporium 322 of diapire 321 and tubulose, this perisporium 322 extends forward from the periphery of diapire 321 and encloses the accommodation space that structure goes out to have opening, second segment 313 is connected to perisporium 322, this perisporium 322 is provided with away from one end of diapire 321 can the lid 323 of pivot pendulum, and this lid 313 is swingable and be covered on the opening of accommodation space.This dust-collecting cylinder has the inner surface of tubulose, and this inner surface is positioned at the inner side of perisporium 322.This diapire 321 has exhaust outlet, and can discharge via exhaust outlet for the gas in dust-collecting cylinder, this exhaust outlet is provided with regulating valve 324 further, and this regulating valve 324 screw lock in diapire 321, and can flow through the gas flow of exhaust outlet in order to adjustment.This dust-collecting cylinder also has the baffle plate 325 of tubulose, this baffle plate 325 arranges and is arranged in accommodation space, and accommodation space is divided into interior room and outer room, this outer room is between inner surface and baffle plate 325, second end of this tube connector is connected to outer room, one end of this baffle plate 325 is fixedly arranged on diapire 321 and is connected to exhaust outlet, the other end is then free and open, interior room is connected in the one end away from diapire 321 with outer room, preferably, baffle plate 325 is formed with several through hole 326, and interior room is also connected via through hole 326 further with outer room.
In dust-collecting mechanism, this tube connector is in the center extension line of the second end, namely the center extension line of second segment 313 and the center line of inner surface non-intersect and not parallel, preferably, along this tube connector in the common vertical line of the second end center extension line and this inner surface center line, the i.e. view directions viewing of Fig. 7, this tube connector is in the second end center extension line, and the angle namely between the center extension line of second segment 313 and this inner surface center line is greater than 60 degree.
Please refer to Fig. 4 to Fig. 6, this jet plane has been configured to jet runner 41, this jet runner 41 is at extension 12 and between the first paragraph 311 being connected to this air inlet runner 121 and this tube connector, Compressed Gas can be sprayed with this jet runner 41 via this air inlet runner 121 in this tube connector, the air in this tube connector is driven to flow towards this second end, preferably, jet mechanism also includes control valve 42, and this jet runner includes lead segment 411, cannelure 412 and multiple pore 413.In more detail, this jet runner 41 takes shape in the first paragraph 311 of extension 12 and tube connector, and the downstream part be connected to relative to starter gate valve 132 in air inlet runner 121, after described downstream refers to that Compressed Gas enters air inlet runner 121, more lately comparatively speaking flow through part, in other words, first jet runner 41 and air inlet runner 121 junction can be arrived again through starter gate valve 132 after Compressed Gas enters air inlet runner 121.This jet runner 41 extends downward control valve 42 from air inlet runner 121, this control valve 42 is located at extension 12 rotationally, as shown in Figure 2, this control valve 42 is formed with the passage 422 of axially extended centre bore 421 and several radial direction extension, these passages 422 are connected to centre bore 421 separately, and the size of these passages 422 is different, jet runner 41 can be closed for rotating by this control valve 42, or with the jet runner 41 of one of them passage 422 conducting, make control valve 42 can control the gas flow in gaseous blast road.Please refer to Fig. 2, Fig. 2 A, Fig. 4 and Fig. 6, the lead segment 411 of this jet runner extends in the first paragraph 311 of tube connector by the centre bore 422 of control valve further, and be connected to cannelure 412, this cannelure 412 is positioned at the inner side of tube connector first paragraph 311, and this cannelure 412 is surrounded on the center line of first paragraph, these pores 413 annularly groove 412 distribute and are positioned at the inner side of first paragraph 311, and these pores 413 are connected to the inside of cannelure 412 and tube connector first paragraph 311.
Utilize said apparatus, please refer to Fig. 4 to Fig. 6, when user is for use grinder, first compressed gas source can be connected to the air inlet runner 121 of extension 12, after being gripped on the body 11 of housing, pressing plate 131 is pressed down, pressing plate 131 is made to press starter gate valve 132, Compressed Gas enters chamber via air inlet runner 121 immediately, orders about motor 2 and operates, and abrasive disk 23 is rotated, Compressed Gas is discharged from grate flow channel 122 subsequently, user can rotate air bleeding valve 14, changes the open situation of grate flow channel 122, thus controls the operating configuration of motor 2 and the rotating speed of abrasive disk 23.Wherein, as shown in Fig. 5 and Fig. 8, will shunt after Compressed Gas partly enters air inlet runner 121 and enter jet runner 41, Compressed Gas is made to flow through control valve 42, lead segment 411 and cannelure 412, spray in the first paragraph 311 of tube connector via pore 413 again, drive the gas in tube connector towards the second end flowing of tube connector, and then drive air by the gap of flows outside between abrasive disk 23 and housing 1, guard shield 112 inside, dust collecting opening 113 and tube connector, enter in dust-collecting cylinder 32.
Please refer to Fig. 9, second segment 313 due to tube connector is connected to the perisporium 322 of dust-collecting cylinder, and its center line presents not parallel also off plumb state, inner surface guiding is subject to after making air enter the outer room of dust-collecting cylinder via second segment 313, and in outer room, form the swirling eddy rotated around inner surface center line, now, dust and chip can be subject to centrifugal action because of air-flow fast rotary, the outside being thrown to outer room is thrown by air-flow, namely near perisporium 322 or inner surface, air near interior room then carries less dust and chip, interior room can be entered via the free and open one end of baffle plate 325 or through hole 326, again further via exhaust outlet externally environment discharge, make air in dust-collecting cylinder after filtering dust and chip, discharged by the exhaust outlet of dust-collecting cylinder again, obtain the result of use of control of dust.
From the above, jet mechanism of the present invention is the air inlet runner being connected to housing, before Compressed Gas drives motor running, namely in advance Compressed Gas is shunted, in order to drive the air-flow in dust-collecting mechanism, because Compressed Gas consumes without motor, there is higher pressure, and stronger air-flow can be produced in dust-collecting mechanism, and then drive rapid air movement, obtain preferably dust collecting effect.
Secondly, because the present invention can produce stronger air-flow in dust-collecting mechanism, make the present invention that dust-collecting cylinder air-guiding can be utilized further to rotate, utilize centrifugal force and directly dust be separated with chip from air, do not need additionally to install filter screen or filter bag, remove collect dust time also only need to open dust-collecting cylinder, dust is poured out, have concurrently simple for structure and be easy to cleaning dust feature.
Moreover, the present invention is the jet mechanism utilized in housing, gas is guided from air inlet runner the tube connector sprayed into dust-collecting mechanism, and then drive air flowing, air in guard shield is guided and enters dust-collecting cylinder via dust collecting opening and tube connector, in addition installing is not needed to promote the power set of air flowing in dust-collecting mechanism, can the volume of limit dust-collecting cylinder and weight, avoid dust-collecting cylinder to become burden when operation uses.
Further, the grate flow channel of housing is directly connected in motor and the external environment condition of chamber, make Compressed Gas can be directly released into external environment condition after drive motor running, make the pressure of grate flow channel lower, maintain the pressure differential of air inlet runner and grate flow channel, and effectively can maintain the operating configuration of motor, still can maintain the rotating speed of motor when being provided with dust-collecting mechanism, there is splendid result of use.
In addition, do not guide due to grate flow channel and be connected to dust-collecting mechanism, make the present invention further at grate flow channel installing air bleeding valve, the open situation controlling grate flow channel can be used, and then control the rotating speed of motor, utilize succinct mechanism to obtain the result of use of adjustable rotational speed.
Please refer to Figure 10 and Figure 11, in the aforementioned embodiment, although be the mode dust-separating utilizing air-guiding to rotate in dust-collecting cylinder, but change with filter screen or similar filter filtering dust also all feasible, in more detail, in other embodiments of the present invention, exhaust outlet and filter screen can be had in dust-collecting cylinder, dust-collecting cylinder encloses structure accommodation space, as shown in Figure 10 filter screen 331 cover can be placed on the exhaust outlet of dust-collecting cylinder 33, or as shown in figure 11 filter screen 341 can be arranged the accommodation space being arranged in dust-collecting cylinder 34, and the accommodation space in dust-collecting cylinder 34 is divided into upstream space and downstream space, the second segment 313 of this upstream space and tube connector, namely the second end is connected, this downstream space is then connected with this exhaust outlet, by this, dust-collecting cylinder is entered via second segment 313 at air, before discharging via exhaust outlet further, filter screen must be flowed through, and the dust and chip that carry in filter screen filtering air can be utilized, the result of use of same acquisition control of dust and filtered air.
Claims (9)
1. a Dust collection type grinder, is characterized in that, comprises:
Housing and motor, described motor is located in described housing, described housing has the gas flow corresponding with described motor, and described gas flow comprises at least one air inlet runner, and described air inlet runner inputs for Compressed Gas and drives described motor running, described motor has axle, described axle is to downward-extension, and abrasive disk can be driven during described central axis to rotate, and described housing has guard shield, described guard shield is around described axle bottom, and the side of described guard shield is formed with dust collecting opening;
Dust-collecting mechanism, comprises tube connector, and described tube connector has first end and the second end, and described first end is connected to described dust collecting opening;
Jet mechanism, be formed with jet runner, described jet runner is connected between described air inlet runner and described tube connector, and Compressed Gas can be sprayed in described tube connector via described air inlet runner and described jet runner, drives the air in described tube connector towards described second end flowing.
2. Dust collection type grinder as claimed in claim 1, is characterized in that: described jet mechanism comprises control valve, in order to control the gas flow of described jet runner.
3. Dust collection type grinder as claimed in claim 1, is characterized in that: described housing has starter gate valve, and in order to whether to control the opening of described gas flow, described jet runner is connected to the downstream part relative to described starter gate valve in described air inlet runner.
4. Dust collection type grinder as claimed in claim 2, is characterized in that: described housing has starter gate valve, and in order to whether to control the opening of described gas flow, described jet runner is connected to the downstream part relative to described starter gate valve in described air inlet runner.
5. the Dust collection type grinder according to any one of Claims 1-4, it is characterized in that: described dust-collecting mechanism also comprises dust-collecting cylinder, second end of described tube connector is connected to described dust-collecting cylinder, described dust-collecting cylinder has exhaust outlet, air in described guard shield can enter described dust-collecting cylinder via described dust collecting opening and described tube connector, and after described dust-collecting cylinder filters, warp is discharged by described exhaust outlet again.
6. Dust collection type grinder as claimed in claim 5, is characterized in that: described dust-collecting cylinder has tubular inner surface, described tube connector in the center extension line of the second end and the center line of described inner surface non-intersect and not parallel.
7. Dust collection type grinder as claimed in claim 6, it is characterized in that: described dust-collecting cylinder has the baffle plate of tubulose, accommodation space is divided into interior room and outer room by described baffle plate, described outer room is between described inner surface and described baffle plate, second end of described tube connector is connected to described outer room, wherein one end of described baffle plate is connected to described exhaust outlet, and the other end of described baffle plate is free and open, and described interior room is connected with described outer room.
8. Dust collection type grinder as claimed in claim 6, it is characterized in that: the common vertical line along described tube connector in the second end center extension line and described inner surface center line is watched, the angle of described tube connector between the second end center extension line and described inner surface center line is greater than 60 degree.
9. Dust collection type grinder as claimed in claim 5, is characterized in that: the volume of described dust-collecting cylinder is not more than three times of the volume of described housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210141678.2A CN103386642B (en) | 2012-05-09 | 2012-05-09 | Dust collection type grinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210141678.2A CN103386642B (en) | 2012-05-09 | 2012-05-09 | Dust collection type grinder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103386642A CN103386642A (en) | 2013-11-13 |
| CN103386642B true CN103386642B (en) | 2015-09-23 |
Family
ID=49531164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210141678.2A Expired - Fee Related CN103386642B (en) | 2012-05-09 | 2012-05-09 | Dust collection type grinder |
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| Country | Link |
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| CN (1) | CN103386642B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102017108426A1 (en) | 2017-04-20 | 2018-10-25 | Ferrobotics Compliant Robot Technology Gmbh | Grinding machine for robot-assisted grinding |
| CN112720160A (en) * | 2020-12-28 | 2021-04-30 | 南京顺遂姐商贸有限公司 | Polishing equipment for plastic production |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW547238U (en) * | 2002-11-05 | 2003-08-11 | X Pole Prec Tools Inc | Improved structure for dust collecting mask of grinding machine |
| CN201009149Y (en) * | 2006-09-12 | 2008-01-23 | 大里兴业有限公司 | Grinding mill with dust collection device |
| TW200906544A (en) * | 2007-08-10 | 2009-02-16 | Storm Pneumtic Tool Co Ltd | Pneumatic polishing machine having improved air inlet control device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10162632A1 (en) * | 2001-12-20 | 2003-07-03 | Hilti Ag | Grinder with suction hood |
| JP2005288566A (en) * | 2004-03-31 | 2005-10-20 | Tomosada Kenki:Kk | Disc sander |
-
2012
- 2012-05-09 CN CN201210141678.2A patent/CN103386642B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW547238U (en) * | 2002-11-05 | 2003-08-11 | X Pole Prec Tools Inc | Improved structure for dust collecting mask of grinding machine |
| CN201009149Y (en) * | 2006-09-12 | 2008-01-23 | 大里兴业有限公司 | Grinding mill with dust collection device |
| TW200906544A (en) * | 2007-08-10 | 2009-02-16 | Storm Pneumtic Tool Co Ltd | Pneumatic polishing machine having improved air inlet control device |
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| CN103386642A (en) | 2013-11-13 |
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