CN105369490A - Sound-attenuation dustproof cover for air suction device of sewing machine - Google Patents
Sound-attenuation dustproof cover for air suction device of sewing machine Download PDFInfo
- Publication number
- CN105369490A CN105369490A CN201510918499.9A CN201510918499A CN105369490A CN 105369490 A CN105369490 A CN 105369490A CN 201510918499 A CN201510918499 A CN 201510918499A CN 105369490 A CN105369490 A CN 105369490A
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- CN
- China
- Prior art keywords
- dust cover
- noise elimination
- elimination dust
- air intake
- intake device
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- 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.)
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Classifications
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B81/00—Sewing machines incorporating devices serving purposes other than sewing, e.g. for blowing air, for grinding
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Motor Or Generator Frames (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The invention provides a sound-attenuation dustproof cover for an air suction device of a sewing machine. The sound-attenuation dustproof cover comprises a motor holding cavity for holding an air suction motor in the air suction device of the sewing machine, and a spiral sound-attenuation channel communicating the motor holding cavity with the outside is further formed in the sound-attenuation dustproof cover. By means of the sound-attenuation dustproof cover for the air suction device of the sewing machine, noise generated during high-speed running of the air suction motor in the air suction device of the sewing machine is reduced, dustproof protection is performed on the air suction motor, and the service life of the air suction motor is prolonged.
Description
Technical field
The present invention relates to Sewing machines air intake device, particularly relate to a kind of noise elimination dust cover of Sewing machines air intake device.
Background technology
Air intake device is one of extremely important attachment device in Sewing machines, and it is mainly used to collect the impurity such as the end of a thread and cloth waste.At present, air intake device is divided into two classes, and a class is the pneumatic air intake device that external gas source coordinates, and one is motor-driven electric air-suction device.All there is the problem that sound is loud, service life is short in existing electric air-suction device.Sound sound is because the noise creating and be difficult to avoid that runs up of induced-draught electric motor in air intake device, and this sound have impact on the environment near the normal work of operative employee and sound source; Service life is short is that affect the flowing of air, siphon away neighbouring assorted dirt, line felt bits etc., be attached on motor, affecting motor normally works, and reduces service life because motor runs up.
Chinese patent 201510298016.X discloses a kind of dust collect plant of Sewing machines, and it comprises dust bucket, and dust bucket is provided with upper cover plate; Upper cover plate offers dust suction deutostoma and inhales spool connector; The inner chamber of dust bucket is provided with motor, and the output shaft of motor connects fan; Outside or the inner chamber of dust bucket are provided with electromagnet, and one end of electromagnet forms snap arm, and snap arm is fixedly connected with connecting pin, and connecting pin connects the free end of revolving part, and the stiff end of revolving part is provided with steady pin, and connecting pin can rotate around steady pin; Connecting pin is fixedly connected with dividing plate; Electromagnet drives snap arm to eject, and snap arm drives connecting pin to rotate around steady pin, and connecting pin drives dividing plate to rotate thereupon, realizes the covering to dust suction deutostoma.The present invention adopts and realize noise reduction around spongy layer outside motor, but this noise-reducing structure exists certain limitation, causes motor radiating bad, affects the operating efficiency of motor.
Therefore, the use in sewing machine air intake device of a kind of low noise, long service life is needed.
Summary of the invention
The shortcoming of prior art in view of the above, the object of the present invention is to provide a kind of noise elimination dust cover of Sewing machines air intake device, large for solving Sewing machines air intake device noise in prior art, the problem that the life-span is low.
For achieving the above object and other relevant objects, the invention provides a kind of noise elimination dust cover of Sewing machines air intake device, described noise elimination dust cover has the motor cavity volume holding induced-draught electric motor in described Sewing machines air intake device, and described noise elimination dust cover is also provided with the spiral helicine silencing channel communicated with the external world by described motor cavity volume.
Preferably, the top of described noise elimination dust cover is semicircle chondritic, and the circumferential wall of described noise elimination dust cover encompasses described spiral helicine silencing channel.
Preferably, the outer wall of described noise elimination dust cover is provided with for installing fixing connecting portion.
Preferably, on described connecting portion with bolt hole.
Preferably, on described connecting portion with draw-in groove.
Preferably, the inner surface of described noise elimination dust cover scribbles deadener.
As mentioned above, the noise elimination dust cover of Sewing machines air intake device of the present invention, there is following beneficial effect: induced-draught electric motor covers in motor cavity volume by this noise elimination dust cover, and the noise produced when induced-draught electric motor runs up is reduced by spiral helicine silencing channel, and proofing dust and protecting has been carried out to induced-draught electric motor, extend the service life of induced-draught electric motor; This noise elimination dust cover low cost of manufacture, easy to install, save production cost.
Accompanying drawing explanation
Fig. 1 is shown as the noise elimination dust cover schematic diagram of Sewing machines air intake device of the present invention.
Fig. 2 is shown as the noise elimination dust cover acoustic reflection schematic diagram of Sewing machines air intake device of the present invention.
Fig. 3 is shown as the schematic diagram of sound wave of the present invention after noise elimination dust cover.
Fig. 4 is shown as helical form silencing channel schematic diagram of the present invention.
Element numbers explanation
1 noise elimination dust cover
11 connecting portions
12 motor cavity volumes
13 silencing channels
2 induced-draught electric motors
Detailed description of the invention
By particular specific embodiment, embodiments of the present invention are described below, person skilled in the art scholar the content disclosed by this description can understand other advantages of the present invention and effect easily.
Refer to Fig. 1 to Fig. 4.Notice, structure, ratio, size etc. that this description institute accompanying drawings illustrates, content all only in order to coordinate description to disclose, understand for person skilled in the art scholar and read, and be not used to limit the enforceable qualifications of the present invention, therefore the not technical essential meaning of tool, the adjustment of the modification of any structure, the change of proportionate relationship or size, do not affecting under effect that the present invention can produce and the object that can reach, all should still drop in scope that disclosed technology contents can contain.Simultaneously, quote in this description as " on ", D score, "left", "right", " centre " and " one " etc. term, also only for ease of understanding of describing, and be not used to limit the enforceable scope of the present invention, the change of its relativeness or adjustment, under changing technology contents without essence, when being also considered as the enforceable category of the present invention.
As shown in Figure 1, the invention provides a kind of noise elimination dust cover of Sewing machines air intake device, noise elimination dust cover 1 has the motor cavity volume 12 holding induced-draught electric motor 2 in described Sewing machines air intake device, and described noise elimination dust cover 1 is also provided with the spiral helicine silencing channel 13 communicated with the external world by motor cavity volume 12.The present invention reduces the noise produced when induced-draught electric motor runs up, and has carried out proofing dust and protecting to induced-draught electric motor, extend the service life of induced-draught electric motor in adopting and being located at by induced-draught electric motor with the noise elimination dust cover of silencing channel; This noise elimination dust cover low cost of manufacture, easy to install, save production cost.
Particularly, the top of above-mentioned noise elimination dust cover 1 is semicircle chondritic, and the circumferential wall of noise elimination dust cover encompasses spiral helicine silencing channel.This noise elimination dust cover reaches noise reduction by three aspects: 1) induced-draught electric motor 2 run up produce the semicircle spherical structure reflects of sound wave through noise elimination dust cover top, the sound wave generation interference gathered in same point causes its amplitude to reduce, thus reduce its sound, see shown in Fig. 2, Fig. 3, A place in Fig. 2 is the main positions of sound wave interference, the sound wave that induced-draught electric motor sends upwards focuses on A place through the spherical structure reflects of semicircle, and amplitude reduces; In Fig. 3, hachure is the multifrequency sound wave that induced-draught electric motor sends, and thick lines are the sound wave after interfering, and obviously can find out that its amplitude is less; 2) sound wave follows air to flow out along spiral helicine silencing channel 13, sound has been carried out to the effect of good dilution, interference, as shown in Figure 4; 3) scribble deadener at the inner surface of noise elimination dust cover 1, realize better noise reduction.
For ease of fixing above-mentioned noise elimination dust cover, the outer wall of above-mentioned noise elimination dust cover 1 is provided with for installing fixing connecting portion 11.Generally, with bolt hole on connecting portion 11, by bolt, noise elimination dust cover is fixed.Above-mentioned connecting portion also with draw-in groove, can be fixed by fastener etc.The structure of connecting portion is not limited thereto, as long as noise elimination dust cover and air intake device can be fixed and be easy to dismantle.
This noise elimination dust cover 1 also has good dust-proof effect on the basis of eliminating the noise; in induced-draught electric motor 2 is contained in by it; and be only connected with the external world by spiral helicine silencing channel 13; completely closed by induced-draught electric motor; only has an air stream outlet; well protect induced-draught electric motor away from assorted dirt, line hair, cloth bits etc., effectively optimize the working environment of induced-draught electric motor, extend the service life of induced-draught electric motor.
In sum, the noise elimination dust cover of Sewing machines air intake device of the present invention, it adopts in induced-draught electric motor is located at by the noise elimination dust cover with silencing channel, reduce the noise produced when induced-draught electric motor runs up, and proofing dust and protecting has been carried out to induced-draught electric motor, extend the service life of induced-draught electric motor; This noise elimination dust cover low cost of manufacture, easy to install, save production cost.So the present invention effectively overcomes various shortcoming of the prior art and tool high industrial utilization.
Above-described embodiment is illustrative principle of the present invention and effect thereof only, but not for limiting the present invention.Any person skilled in the art scholar all without prejudice under spirit of the present invention and category, can modify above-described embodiment or changes.Therefore, such as have in art usually know the knowledgeable do not depart from complete under disclosed spirit and technological thought all equivalence modify or change, must be contained by claim of the present invention.
Claims (6)
1. the noise elimination dust cover of a Sewing machines air intake device, it is characterized in that, described noise elimination dust cover has the motor cavity volume holding induced-draught electric motor in described Sewing machines air intake device, and described noise elimination dust cover is also provided with the spiral helicine silencing channel communicated with the external world by described motor cavity volume.
2. the noise elimination dust cover of Sewing machines air intake device according to claim 1, is characterized in that: the top of described noise elimination dust cover is semicircle chondritic, and the circumferential wall of described noise elimination dust cover encompasses described spiral helicine silencing channel.
3. the noise elimination dust cover of Sewing machines air intake device according to claim 1, is characterized in that: the outer wall of described noise elimination dust cover is provided with for installing fixing connecting portion.
4. the noise elimination dust cover of Sewing machines air intake device according to claim 3, is characterized in that: with bolt hole on described connecting portion.
5. the noise elimination dust cover of Sewing machines air intake device according to claim 3, is characterized in that: with draw-in groove on described connecting portion.
6. the noise elimination dust cover of Sewing machines air intake device according to claim 1, is characterized in that: the inner surface of described noise elimination dust cover scribbles deadener.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510918499.9A CN105369490A (en) | 2015-12-11 | 2015-12-11 | Sound-attenuation dustproof cover for air suction device of sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510918499.9A CN105369490A (en) | 2015-12-11 | 2015-12-11 | Sound-attenuation dustproof cover for air suction device of sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105369490A true CN105369490A (en) | 2016-03-02 |
Family
ID=55372091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510918499.9A Pending CN105369490A (en) | 2015-12-11 | 2015-12-11 | Sound-attenuation dustproof cover for air suction device of sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105369490A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2274932Y (en) * | 1996-04-17 | 1998-02-25 | 徐强 | Low noise cleaner |
| CN2510161Y (en) * | 2001-10-31 | 2002-09-11 | 陈荐 | Ball Mill Multi-layer structure sound-proof shield |
| CN101075431A (en) * | 2006-05-19 | 2007-11-21 | 王鸿庆 | Silencer and respirator therewith |
| CN200997273Y (en) * | 2006-12-31 | 2007-12-26 | 周望明 | Sound-proof shield |
| CN201104854Y (en) * | 2007-10-11 | 2008-08-27 | 中山百川汇盈精密实业有限公司 | Dust arrest device with sound eliminator |
| CN102444447A (en) * | 2011-12-21 | 2012-05-09 | 北京航空航天大学 | Spherical-hemispherical multi-cavity muffler |
| CN102621579A (en) * | 2012-03-27 | 2012-08-01 | 上海大学 | High-directivity low-frequency sound wave transmitting device and method |
| CN104538019A (en) * | 2014-12-25 | 2015-04-22 | 哈尔滨工程大学 | Generalized photonic crystal acoustic shield |
| CN205223586U (en) * | 2015-12-11 | 2016-05-11 | 杰克缝纫机股份有限公司 | Sewing machine noise elimination dust cover that device was used that induced drafts |
-
2015
- 2015-12-11 CN CN201510918499.9A patent/CN105369490A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2274932Y (en) * | 1996-04-17 | 1998-02-25 | 徐强 | Low noise cleaner |
| CN2510161Y (en) * | 2001-10-31 | 2002-09-11 | 陈荐 | Ball Mill Multi-layer structure sound-proof shield |
| CN101075431A (en) * | 2006-05-19 | 2007-11-21 | 王鸿庆 | Silencer and respirator therewith |
| CN200997273Y (en) * | 2006-12-31 | 2007-12-26 | 周望明 | Sound-proof shield |
| CN201104854Y (en) * | 2007-10-11 | 2008-08-27 | 中山百川汇盈精密实业有限公司 | Dust arrest device with sound eliminator |
| CN102444447A (en) * | 2011-12-21 | 2012-05-09 | 北京航空航天大学 | Spherical-hemispherical multi-cavity muffler |
| CN102621579A (en) * | 2012-03-27 | 2012-08-01 | 上海大学 | High-directivity low-frequency sound wave transmitting device and method |
| CN104538019A (en) * | 2014-12-25 | 2015-04-22 | 哈尔滨工程大学 | Generalized photonic crystal acoustic shield |
| CN205223586U (en) * | 2015-12-11 | 2016-05-11 | 杰克缝纫机股份有限公司 | Sewing machine noise elimination dust cover that device was used that induced drafts |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160302 |