CN105908403A - Dustproof structure of sewing machine housing - Google Patents
Dustproof structure of sewing machine housing Download PDFInfo
- Publication number
- CN105908403A CN105908403A CN201610435032.3A CN201610435032A CN105908403A CN 105908403 A CN105908403 A CN 105908403A CN 201610435032 A CN201610435032 A CN 201610435032A CN 105908403 A CN105908403 A CN 105908403A
- Authority
- CN
- China
- Prior art keywords
- protective cover
- main shaft
- annular
- handwheel
- sewing machine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B73/00—Casings
- D05B73/02—Upper casings
Abstract
The invention belongs to the technical field of sewing machines and particularly provides a dustproof structure of a sewing machine housing. The dustproof structure comprises a spindle, wherein a protective cover for covering a motor assembly is arranged on the spindle, a hand wheel is arranged on the spindle outside the protective cover, and a dustproof structure body for preventing outside dust from falling into the protective cover is arranged on the hand wheel or between the hand wheel and the protective cover. The dustproof structure can effectively prevent dust from falling into the protective cover and affecting components including encoders, gratings and the like, prolong the service life of a motor and ensure orderly production.
Description
Technical field:
The invention belongs to sewing machine technique field, refer in particular to a kind of sewing machine case dustproof construction.
Background technology:
Current sewing machine typically all uses direct drive structure.It is provided with in one end of machine spindle and directly drives electricity
Thermomechanical components, electric machine assembly includes the components and parts such as encoder and grating.Electric machine assembly is arranged in protected enclosure
Portion, main shaft stretches out outside protected enclosure, and connection has handwheel thereon.Existing protected enclosure and main shaft it
Between, there is gap between protected enclosure and handwheel.When sewing some special fabrics, the dust caused is relatively
Many, these dusts can be brought in protected enclosure by sewing machine hand-wheel when rotated, and the dust brought into is easy to
In entrance encoder, encoder, grating are impacted, and then have influence on the properly functioning of motor, cause
Sewing work can not be carried out in order.
Summary of the invention:
It is an object of the invention to provide and a kind of can effectively prevent from dirt thing from entering the sewing machine case in protected enclosure preventing
Dirt structure.
The present invention is achieved in that
A kind of sewing machine case dustproof construction, including main shaft, is provided with for covering electric machine assembly on main shaft
Protective cover, the main shaft outside protective cover is provided with handwheel, on handwheel or between handwheel and protective cover
It is provided with the dustproof construction preventing extraneous dirt thing to be fed through in protective cover from handwheel.
In above-mentioned a kind of sewing machine case dustproof construction, described dustproof construction is provided in the mistake on handwheel
Filter screen.
In above-mentioned a kind of sewing machine case dustproof construction, described dustproof construction is in handwheel and protective cover
Between many bendings wind inlet channel.
In above-mentioned a kind of sewing machine case dustproof construction, the medial surface of handwheel is provided with annular groove,
Axially be outward extended with annular protrusion on the corresponding lateral surface of protective cover along main shaft, one end of annular protrusion is inserted
It is located in annular groove, between annular protrusion and annular groove, is formed with gap, in annular groove, annular
Protruding, form the wind inlet channel of bending more than between protective cover and main shaft.
In above-mentioned a kind of sewing machine case dustproof construction, the shaft set of electric machine assembly outer at main shaft and with
Main shaft synchronous axial system, is set with grating seat in rotating shaft, and grating is arranged on grating seat, in protective cover
Be provided with annular projection on wall axially inwards along main shaft, one end of grating seat, one end of rotating shaft or grating seat is stretched
Enter in annular projection；At rotating shaft end face, grating seat end face and protective cover inwall, convex annular column wall and grating
Form, between seat outer surface, the bending air channel connected with many bendings wind inlet channel.
In above-mentioned a kind of sewing machine case dustproof construction, the lateral wall of described annular protrusion and annular groove
On distance between the medial wall that is adjacent be 1 ± 0.05mm；The medial wall of described annular protrusion and annular
Distance between the medial wall being adjacent on groove is 1 ± 0.05mm.
In above-mentioned a kind of sewing machine case dustproof construction, on the lateral surface of protective cover along main shaft axially to
Being extended with outward annular protrusion, the outer end of annular protrusion is arranged near the medial wall of handwheel, and at annular protrusion
Between outer face and the medial wall of handwheel formed gap, in the outer face of annular protrusion, the medial wall of handwheel,
Bending wind inlet channel more than one is formed between protective cover and main shaft.
In above-mentioned a kind of sewing machine case dustproof construction, the shaft set of electric machine assembly outer at main shaft and with
Main shaft synchronous axial system, is set with grating seat in rotating shaft, and grating is arranged on grating seat, in protective cover
Axially be provided with annular projection on wall along main shaft, ring is stretched in one end of grating seat, one end of rotating shaft or grating seat
In shape projection；At rotating shaft end face, grating seat end face and protective cover inwall, outside convex annular column wall is with grating seat
The bending air channel connected with many bendings wind inlet channel is formed between surface.
In above-mentioned a kind of sewing machine case dustproof construction, main shaft is set with axle sleeve, outside axle sleeve
Being provided with annular flange on the face of cylinder, one end of axle sleeve is between protective cover inner hole wall and main shaft, and annular is turned over
While between the outer face and the medial surface of handwheel of protective cover, between annular flange and protective cover outer face,
Bending wind inlet channel more than one is formed between sleeve outer circle cylinder and protective cover inner hole wall.
In above-mentioned a kind of sewing machine case dustproof construction, the shaft set of electric machine assembly outer at main shaft and with
Main shaft synchronous axial system, is set with grating seat in rotating shaft, and grating is arranged on grating seat, in protective cover
Axially be provided with annular projection on wall along main shaft, axle sleeve is arranged on the main shaft between rotating shaft and handwheel；Turning
Between end face and the protective cover inwall of grating seat, annular projection inner cylinder and grating seat outer surface between formed
The bending air channel connected with many bendings wind inlet channel.
The advantage that the present invention highlights compared to existing technology is:
1, the present invention can effectively prevent dirt thing from entering in protected enclosure, makes the components and parts such as encoder, grating
Become impact, extend the service life of motor, it is ensured that carrying out in order of production；
2, the present invention uses many bendings wind inlet channel, and dirt thing can effectively be blocked in bending part, and many bendings
The gap of the entrance point of wind inlet channel is little, can dirt thing that effectively blocking volume is slightly larger enter in protective cover；
3, the present invention is without increasing cost, good dustproof effect.
Accompanying drawing illustrates:
Fig. 1 is the sectional view of the embodiment of the present invention two；
Fig. 2 is the schematic perspective view of the handwheel of the embodiment of the present invention two；
Fig. 3 is the front view of the handwheel of the embodiment of the present invention two；
Fig. 4 is the A-A sectional view of Fig. 3；
Fig. 5 is the partial sectional view of the embodiment of the present invention three；
Fig. 6 is the schematic diagram of the axle sleeve of the embodiment of the present invention four；
Fig. 7 is the partial sectional view of the embodiment of the present invention four.
Detailed description of the invention:
With specific embodiment, the invention will be further described below, sees Fig. 17:
A kind of sewing machine case dustproof construction, including main shaft 1, is provided with electric machine assembly on main shaft 1,
Being covered with protective cover 2 outside electric machine assembly, electric machine assembly includes the components and parts such as motor, encoder and grating 3.?
Handwheel 4, handwheel 4 and main shaft 1 synchronous axial system it is provided with on main shaft 1 outside protective cover 2.Arrange on handwheel 4
Have guide vane, guide vane to direct wind into electric machine assembly is dispelled the heat.But, due in sewing process
Middle can produce certain dust, along with the importing of wind has also been simultaneously fed into dirt thing.In order to prevent extraneous dirt thing from
Handwheel 4 is fed through in protective cover 2, is provided with dust-proof knot on handwheel 4 or between handwheel 4, protective cover 2
Structure.In dustproof construction is possible to prevent handwheel 4 that dirt thing is brought into protected enclosure 2 when rotated and then to coding
The components and parts such as device, grating 3 impact.
Embodiment one:
Described dustproof construction refers to be arranged on handwheel 4 drainage screen preventing dirt thing from entering in protective cover 2.Should
Drainage screen is arranged on inwall or the outer wall of handwheel 4, is directly stopped by dirt thing, and wind still can pass
Filter screen enters in protective cover 2.This simple in construction is convenient, however it is necessary that and often clears up drainage screen.
Embodiment two:
Described dustproof construction can also be the tiny many of formation between handwheel 4, protective cover 2 and main shaft 1
Bending wind inlet channel.As shown in Figure 1,2,3, 4.
Described many bendings wind inlet channel is: be provided with annular groove 5 on the medial surface of handwheel 4, in protection
Having extended axially outward annular protrusion 6 along main shaft 1 on cover 2 corresponding lateral surface, one end of annular protrusion 6 is inserted
It is located in annular groove 5, between annular protrusion 6 and annular groove 5, is formed with gap, at annular groove 5
Lateral wall and the outer cylinder of annular protrusion 6 between, the inner bottom of the end face of annular protrusion 6 and annular groove 5
Between, between the inwall of annular groove 5 and the inner cylinder of annular protrusion 6, the inner cylinder of annular protrusion 6 with
Be interconnected between main shaft 1, between protective cover 2 inner hole wall and main shaft 1 formation bending wind inlet channel more than.
Wherein, distance D1 between outer cylinder and the lateral wall of annular groove 5 of described annular protrusion 6 is 1
± 0.05mm, is typically chosen 1mm；The inner cylinder of described annular protrusion 6 and the medial wall of annular groove 5 it
Between distance D2 be 1 ± 0.05mm, be typically chosen 1mm, can enter dirt thing that effectively blocking volume is slightly larger
Enter in protective cover 2.
Further, the rotating shaft 7 of electric machine assembly be sleeved on main shaft 1 outer and with main shaft 1 synchronous axial system, turning
Being set with grating seat 8 on axle 7, grating 3 is arranged on grating seat 8, along main shaft on the inwall of protective cover 2
1 is provided with annular projection 9 axially inwards, and one end of grating seat 8, one end of rotating shaft 7 or grating seat 8 is stretched into
In annular projection 9；Between rotating shaft 7 end face, grating seat 8 end face and protective cover 2 inwall, annular projection 9
The bending air channel connected with many bendings wind inlet channel is formed between inner cylinder with grating seat 8 outer surface.
Embodiment three:
The present embodiment uses different many bendings wind inlet channels from embodiment two: on the lateral surface of protective cover 2
Having extended axially outward annular protrusion 6 along main shaft 1, the outer end of annular protrusion 6 sets near the medial wall of handwheel 4
Put, and between the medial wall of the outer face of annular protrusion 6 and handwheel 4, form gap, at annular protrusion 6
Outer face and the medial wall of handwheel 4 between, between the inner cylinder of annular protrusion 6 and main shaft, protective cover 2
Many bendings wind inlet channel is formed between inner hole wall and main shaft 1.As shown in Figure 5.
Wherein, distance D3 between outer face and the medial wall of handwheel 4 of described annular protrusion 6 be 1 ±
0.05mm, is typically chosen 1mm, can dirt thing that effectively blocking volume is slightly larger enter in protective cover 2.
Equally, as embodiment two, rotating shaft 7 end face, grating seat 8 end face and protective cover 2 inwall it
Between, between inner cylinder and grating seat 8 outer surface of annular projection 9, formation connects with many bendings wind inlet channel
Bending air channel.
Embodiment four:
Many bendings wind inlet channel that the present embodiment employing is different from embodiment two, three:
Main shaft 1 is set with axle sleeve 10, the external cylindrical surface of axle sleeve 10 is provided with annular flange 11,
One end of axle sleeve 10 is between protective cover 2 inner hole wall and main shaft 1, and annular flange 11 is positioned at protective cover 2
Outer face and the medial surface of handwheel 4 between, annular flange 11 and protective cover 2 outer face between, axle sleeve
Bending wind inlet channel more than one is formed between 10 external cylindrical surfaces and protective cover 2 inner hole wall.
The rotating shaft 7 of electric machine assembly be sleeved on main shaft 1 outer and with main shaft 1 synchronous axial system, axle sleeve 10 is positioned at rotating shaft
Between 7 and handwheel 4, being set with grating seat 8 outside rotating shaft 7, grating 3 is arranged on grating seat 8, anti-
Annular projection 9 it is provided with axially inwards along main shaft 1, in end face and the protection of grating seat 8 on the inwall of guard shield 2
Cover 2 inwall between, annular projection 9 inner cylinder and the outer surface of grating seat 8 between formed with many bendings
The bending air channel of wind inlet channel connection.
Above-described embodiment is only one of presently preferred embodiments of the present invention, not limits the present invention's with this
Practical range, therefore: the equivalence change that all shapes under this invention, structure, principle are done, all should
Within being covered by protection scope of the present invention.
Claims (10)
1. a sewing machine case dustproof construction, including main shaft, is provided with for covering group of motors on main shaft
The protective cover of part, the main shaft outside protective cover is provided with handwheel, it is characterised in that: on handwheel or at hands
The dustproof construction preventing extraneous dirt thing to be fed through in protective cover it is provided with from handwheel between wheel and protective cover.
A kind of sewing machine case dustproof construction the most according to claim 1, it is characterised in that: described anti-
Dirt structure is provided in the drainage screen on handwheel.
A kind of sewing machine case dustproof construction the most according to claim 1, it is characterised in that: described anti-
Many bendings wind inlet channel that dirt structure is between handwheel and protective cover.
A kind of sewing machine case dustproof construction the most according to claim 3, it is characterised in that: at handwheel
Medial surface on be provided with annular groove, the corresponding lateral surface of protective cover is axially outward extended with along main shaft
Annular protrusion, one end of annular protrusion is plugged in annular groove, shape between annular protrusion and annular groove
Become to have gap, between annular groove, annular protrusion, protective cover and main shaft, form the air intake of bending more than
Air channel.
A kind of sewing machine case dustproof construction the most according to claim 4, it is characterised in that: group of motors
The shaft set of part outer at main shaft and with main shaft synchronous axial system, rotating shaft is set with grating seat, grating is arranged
On grating seat, the inwall of protective cover is provided with axially inwards along main shaft annular projection, grating seat, turn
One end of axle or one end of grating seat are stretched in annular projection；At rotating shaft end face, grating seat end face and protective cover
Inwall, forms the bending wind connected with many bendings wind inlet channel between convex annular column wall with grating seat outer surface
Road.
6. according to a kind of sewing machine case dustproof construction described in claim 4 or 5, it is characterised in that: institute
State the distance between the medial wall being adjacent on the lateral wall of annular protrusion and annular groove be 1 ±
0.05mm；Distance between the medial wall being adjacent on the medial wall of described annular protrusion and annular groove is
1±0.05mm。
A kind of sewing machine case dustproof construction the most according to claim 3, it is characterised in that: in protection
Axially being outward extended with annular protrusion along main shaft on the lateral surface of cover, the outer end of annular protrusion is in handwheel
Sidewall is arranged, and forms gap between the outer face and the medial wall of handwheel of annular protrusion, at annular protrusion
Outer face, the medial wall of handwheel, between protective cover and main shaft formed bending wind inlet channel more than.
A kind of sewing machine case dustproof construction the most according to claim 7, it is characterised in that: group of motors
The shaft set of part outer at main shaft and with main shaft synchronous axial system, rotating shaft is set with grating seat, grating is arranged
On grating seat, the inwall of protective cover is axially provided with along main shaft annular projection, grating seat, rotating shaft
One end of one end or grating seat is stretched in annular projection；At rotating shaft end face, grating seat end face and protective cover inwall,
The bending air channel connected with many bendings wind inlet channel is formed between convex annular column wall with grating seat outer surface.
A kind of sewing machine case dustproof construction the most according to claim 3, it is characterised in that: at main shaft
On be set with axle sleeve, the external cylindrical surface of axle sleeve is provided with annular flange, one end of axle sleeve is positioned at protective cover
Between inner hole wall and main shaft, annular flange is between the outer face and the medial surface of handwheel of protective cover, at ring
Formed between shape flange and protective cover outer face, between sleeve outer circle cylinder and protective cover inner hole wall one more and roll over
Curved wind inlet channel.
A kind of sewing machine case dustproof construction the most according to claim 9, it is characterised in that: motor
The shaft set of assembly outer at main shaft and with main shaft synchronous axial system, rotating shaft is set with grating seat, grating sets
Putting on grating seat, be axially provided with annular projection on the inwall of protective cover along main shaft, axle sleeve is arranged on and turns
On main shaft between axle and handwheel；Turning between the end face of grating seat and protective cover inwall, in annular projection
The bending air channel connected with many bendings wind inlet channel is formed between cylinder with grating seat outer surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610435032.3A CN105908403A (en) | 2016-06-15 | 2016-06-15 | Dustproof structure of sewing machine housing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610435032.3A CN105908403A (en) | 2016-06-15 | 2016-06-15 | Dustproof structure of sewing machine housing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105908403A true CN105908403A (en) | 2016-08-31 |
Family
ID=56751242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610435032.3A Pending CN105908403A (en) | 2016-06-15 | 2016-06-15 | Dustproof structure of sewing machine housing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105908403A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106498631A (en) * | 2017-01-05 | 2017-03-15 | 杰克缝纫机股份有限公司 | A kind of head dustproof construction and sewing machine |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4317032A (en) * | 1978-11-09 | 1982-02-23 | Pfaff Haushaltmaschinen Gmbh | Pulse generator for variable-speed drives |
| CN201910703U (en) * | 2010-08-16 | 2011-07-27 | 贺欣机械厂股份有限公司 | Improvement for radiating structure of motor |
| CN102433696A (en) * | 2011-09-16 | 2012-05-02 | 吴江丰榖布艺整理厂 | Novel hand wheel of sewing machine |
| CN203128830U (en) * | 2013-01-18 | 2013-08-14 | 浙江沪龙电机有限公司 | Dustproof structure of sewing machine motor encoder |
| CN203513998U (en) * | 2014-01-22 | 2014-04-02 | 浙江沪龙电机有限公司 | Hand wheel with fan blades for sewing machine |
| CN203700743U (en) * | 2014-01-21 | 2014-07-09 | 浙江青本缝纫机有限公司 | Debugging device of sewing machine |
| CN104319931A (en) * | 2014-10-11 | 2015-01-28 | 浙江兆丰机电股份有限公司 | Waterproof air cooling heat radiation structure of hub motor of electric automobile |
| CN205115806U (en) * | 2015-10-27 | 2016-03-30 | 浙江琦星电子有限公司 | Last motor of using of sewing machine |
-
2016
- 2016-06-15 CN CN201610435032.3A patent/CN105908403A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4317032A (en) * | 1978-11-09 | 1982-02-23 | Pfaff Haushaltmaschinen Gmbh | Pulse generator for variable-speed drives |
| CN201910703U (en) * | 2010-08-16 | 2011-07-27 | 贺欣机械厂股份有限公司 | Improvement for radiating structure of motor |
| CN102433696A (en) * | 2011-09-16 | 2012-05-02 | 吴江丰榖布艺整理厂 | Novel hand wheel of sewing machine |
| CN203128830U (en) * | 2013-01-18 | 2013-08-14 | 浙江沪龙电机有限公司 | Dustproof structure of sewing machine motor encoder |
| CN203700743U (en) * | 2014-01-21 | 2014-07-09 | 浙江青本缝纫机有限公司 | Debugging device of sewing machine |
| CN203513998U (en) * | 2014-01-22 | 2014-04-02 | 浙江沪龙电机有限公司 | Hand wheel with fan blades for sewing machine |
| CN104319931A (en) * | 2014-10-11 | 2015-01-28 | 浙江兆丰机电股份有限公司 | Waterproof air cooling heat radiation structure of hub motor of electric automobile |
| CN205115806U (en) * | 2015-10-27 | 2016-03-30 | 浙江琦星电子有限公司 | Last motor of using of sewing machine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106498631A (en) * | 2017-01-05 | 2017-03-15 | 杰克缝纫机股份有限公司 | A kind of head dustproof construction and sewing machine |
| CN106498631B (en) * | 2017-01-05 | 2019-05-10 | 杰克缝纫机股份有限公司 | A kind of head dustproof construction and sewing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160831 |
|
| RJ01 | Rejection of invention patent application after publication |