CN101509182A - Sewing machine - Google Patents
Sewing machine Download PDFInfo
- Publication number
- CN101509182A CN101509182A CNA2009100041000A CN200910004100A CN101509182A CN 101509182 A CN101509182 A CN 101509182A CN A2009100041000 A CNA2009100041000 A CN A2009100041000A CN 200910004100 A CN200910004100 A CN 200910004100A CN 101509182 A CN101509182 A CN 101509182A
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- China
- Prior art keywords
- horn
- sewing machine
- cooling fan
- machine electromotor
- extraneous gas
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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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- Sewing Machines And Sewing (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The invention relates to a sewing machine that includes an external air suction inlet formed on a part of a pillar and a cooling fan configured in the vicinity of a sewing machine motor in a base end portion of a machine arm supported by the pillar. The cooling fan sucks the external air from the external air suction inlet and generates the airflow flowing in the front end of the machine arm around the sewing machine motor. The external air suction inlet is located in the vicinity of the sewing machine motor. In a case where the temperature after sucking from the external air suction inlet is low, the airflow generated by the cooling fan contacts the sewing machine motor, thus, it is able to effectively cool the sewing machine motor.
Description
Technical field
The sewing machine electromotor that the present invention relates to a kind of driving main shaft is arranged at the Sewing machines of horn inside.
Background technology
Sewing machines has the frame that supports the base end part of horn by the pillar of erectting at the upper surface of base.Horn portion within it has main shaft.Main shaft is rotated by the driving of sewing machine electromotor.Main shaft drives is arranged at needle bar drive device, thread take-up tension lever driving mechanism of the leading section of horn etc.
The type of drive of Sewing machines has direct drive mode.The Sewing machines of direct drive mode makes sewing machine electromotor be arranged at horn inside.The direct driving main shaft of sewing machine electromotor.Main shaft has cooling fan.The cooling fan cooling is disposed at the sewing machine electromotor of horn inside.
The leading section of horn (the other end that is equivalent to technical scheme 1) is provided with the peristome that passes for thread take-up tension lever, and cooling fan flows to the sewing machine electromotor flow air thereby produce from suction extraneous gas such as this peristomes.Sewing machine electromotor is arranged at the base end part (end that is equivalent to technical scheme 1) of the horn of shore supports.The air flow that cooling fan produces is before the leading section from horn arrives base end part, and the heating of the slide unit by horn inside is carried out temperature and risen.Sewing machines in the past is that the air flow after temperature rises blows to sewing machine electromotor, therefore is difficult to cool off effectively sewing machine electromotor.
The Sewing machines that day disclosure special permission communique is put down in writing for 2006 No. 326032 has the extraneous gas suction inlet that the upper arm of mid portion of the length direction of horn is provided with.Cooling fan is disposed at the base end side of horn with respect to the extraneous gas suction inlet.Small-sized fan is disposed at the opposition side (front of horn) of cooling fan across the extraneous gas suction inlet.Cooling fan sucks extraneous gas from the extraneous gas suction inlet, produces to flow to the sewing machine electromotor flow air.The extraneous gas suction inlet be positioned at the base end part that is arranged at horn sewing machine electromotor near, the temperature that therefore suppresses to blow to the air flow of sewing machine electromotor rises, thereby can improve cooling effect.
Small-sized fan sucks extraneous gas from the extraneous gas suction inlet, produces the front flow air stream to horn.The air flow that small-sized fan produces make horn leading section in press to malleation (than the high pressure of atmospheric pressure), can prevent that principal vertical line bits, cotton-wool etc. enter horn inside.
The Sewing machines that day disclosure special permission communique is put down in writing for 2006 No. 326032 has two fans (cooling fan and small-sized fan) that are installed on main shaft and the extraneous gas suction inlet of suction extraneous gas special use, so has complex structure, problem that cost is high.
Summary of the invention
The objective of the invention is to cool off the sewing machine electromotor of horn inside effectively by simple structure with a cooling fan.
The Sewing machines of technical scheme 1 comprises the pillar of the upper surface that is erected in base, one end is by the horn of described shore supports, the cooling fan of the sewing machine electromotor of driving main shaft and the described sewing machine electromotor of cooling, this cooling fan is fixed on the main shaft, described cooling fan and described sewing machine electromotor are disposed at described horn inside, has the extraneous gas suction inlet that on the part of described pillar, forms, make described cooling fan and sewing machine electromotor adjacent and dispose, described cooling fan, produces through flowing to the other end of described horn flow air around the described sewing machine electromotor to described pillar and the inner extraneous gas that sucks of horn from described extraneous gas suction inlet.
Cooling fan sucks extraneous gas from the extraneous gas suction inlet on the part that is arranged at pillar, flows from an end to the other end flow air inner generation of horn.Sewing machine electromotor is disposed at an end of the horn that is supported on pillar top.Through around the sewing machine electromotor, can cool off sewing machine electromotor effectively under the state of the low temperature of the air flow that cooling fan produces before temperature rises.The air flow of cooling behind the sewing machine electromotor be to the other end of horn, and flow out to the outside from the peristome that is arranged at horn the other end in order to pass for thread take-up tension lever etc.The interior pressure of the other end of horn becomes malleation by the effect of air flow, can prevent that principal vertical line bits, cotton-wool etc. enter horn inside.
In the Sewing machines of technical scheme 2, described cooling fan has the diameter bigger than the diameter of described sewing machine electromotor.
The air flow that cooling fan produces flows through the entire circumference of the diameter sewing machine electromotor littler than cooling fan, can cool off sewing machine electromotor effectively.
In the Sewing machines of technical scheme 3, described extraneous gas suction inlet double as is for the peristome that spanner passes that backstitches that protrudes in described pillar front.
Extraneous gas suction inlet double as passes required peristome for backstitching spanner.Therefore need not in Sewing machines that the peristome that sucks the extraneous gas special use is set and maybe can reduce the peristome that sucks the extraneous gas special use, available simple structure achieves the goal.
In the Sewing machines of technical scheme 4 or 5, the horn inside between the other end of described cooling fan and described horn is provided with the wall of a part of blocking described air flow.
Wall blocks the part of the air flow of cooling fan generation, and restriction arrives the air mass flow of the other end of horn.Therefore operating personnel are difficult for touching the wind that blows to the outside of horn through the peristome that passes for thread take-up tension lever etc., can cosily make.Wall energy enough prevents flow backwards a go back to end of horn of the air after the other end of horn temperature rises.Sewing machine electromotor can not contact with the air after temperature rises, and the function of therefore sewing is cooled off sewing machine electromotor effectively.
In the Sewing machines of technical scheme 6 or 7, described wall double as supports the parts of bearings of the bearing of described main shaft.
Parts of bearings is the required parts of the bearing of supports main shaft.Because therefore parts of bearings double as wall need not special-purpose wall is set in Sewing machines, but simplified structure.
Description of drawings
Fig. 1 is the isometric front view of Sewing machines of the present invention.
Fig. 2 is the rear isometric view that the Sewing machines of the present invention of back side lid is not installed.
Fig. 3 amplifies the part of sewing machine electromotor and cooling fan and the stereogram represented.
The specific embodiment
The present invention is described in detail below with reference to the accompanying drawing of representing better embodiment.
Fig. 1 is the front with the outside of paper.As shown in Figure 1, the frame F of Sewing machines 1 of the present invention has base 2, pillar 3 and horn 4.The form setting of pillar 3 to erect upward in the right side of base 2 part.The base end part of the upper support horn 4 of pillar 3 (end).The leading section of horn 4 (the other end) extends to left with the form relative with base 2.
The frame F of Sewing machines 1 has the thread take-up tension lever 7 and the shank 8 of the leading section of being located at horn 4.The action of thread take-up tension lever 7 by the thread take-up tension lever driving mechanism (not shown) of horn 4 inside comes up and down direction to swing.The front end of thread take-up tension lever 7 is given prominence to the outside from the long peristome of being located on horn 4 front surfaces 6 of above-below direction.The action of shank 8 by the needle bar drive device (not shown) of horn 4 inside comes up and down, and direction moves back and forth.Suture needle 9 is installed on the lower end to the outstanding shank 8 in the below of horn 4.As shown in Figure 2, the frame F of Sewing machines 1 has the main shaft 20 that disposes with the form in the direction extension to the left and right of the inside of horn 4.Main shaft 20 is connected with sewing machine electromotor 15.Sewing machine electromotor 15 is disposed at the inboard of the base end part of the horn 4 that is supported on pillar 3 tops.Main shaft 20 rotates by the driving of sewing machine electromotor 15.The left end of main shaft 20 is connected with the thread take-up tension lever driving mechanism with needle bar drive device.Needle bar drive device and thread take-up tension lever driving mechanism move by the rotation of main shaft 20.Shown in Fig. 2 and 3, main shaft 20 has near cooling fan 16 and the belt pulley 18 that is installed on the sewing machine electromotor 15.The frame F of Sewing machines 1 has the lower shaft (not shown) that disposes with the form in the direction extension to the left and right of the inside of base 2.Lower shaft is connected with main shaft 20 by the belt (not shown) that is wound in belt pulley 18.Lower shaft rotates by the rotation of main shaft 20, and drives rotating shuttle and the feed mechanism (not shown) that is arranged at base 2 ends (left part).The frame F of Sewing machines 1 is provided with feeding adjusting knob 10 on pillar 3.Operating personnel can change the actuating quantity of the feed mechanism of the left part of being located at base 2 by the operation of feeding adjusting knob 10.This change is for the feeding amount of the processing cloth (not shown) of regulating base 2 upper surfaces and carry out.
The frame F of Sewing machines 1 is provided with manual pulley 14 in the right part of horn 4.Manual pulley 14 is installed on the end to the outstanding main shaft 20 in the outside, right part of horn 4.Operating personnel can come by the operation of manual pulley 14 with manual rotary main shaft 20.The action of suture needle 9 by needle bar drive device comes up and down that direction moves, in order to confirm the down position of this suture needle 9, main shaft 20 manually be rotated in the sewing beginning time carry out.
Cooling fan 16 is installed on than belt pulley 18 near sewing machine electromotor 15 side places.Cooling fan 16 is adjacent with sewing machine electromotor 15.Cooling fan 16 rotates by the rotation of main shaft 20.By the rotation of cooling fan 16, at the horn 4 inner air flows that produce from sewing machine electromotor 15 departure directions.The air flow that cooling fan 16 produces flows to right-hand (among Fig. 2) from left.The diameter of cooling fan 16 is greater than the diameter of sewing machine electromotor 15.
Frame F has peristome (not shown) on the sidewall (the right wall side in Fig. 1) of pillar 3 parts.The formation position of peristome is near and the below of the installation site of sewing machine electromotor 15.Motor lid 11 covers described peristome.As illustrated in fig. 1 and 2, have extraneous gas suction inlet 12a and the 12b that the bottom of plate 11a and rear board 11b in front is respectively equipped with as the motor lid 11 of pillar 3 parts.Extraneous gas suction inlet 12a and 12b are the holes of long rectangle of above-below direction.The extraneous gas suction inlet 12a double as that is provided with of plate 11a is for the peristome that spanner 13 passes that backstitches that extends from the inside of pillar 3 in front.
Carry out will processing cloth the backstitching of the temporary transient counter-rotating of feed direction the time, operation backstitching spanner 13.As shown in Figure 1, backstitch spanner 13 and pass extraneous gas suction inlet 12a, and parallel with the front surface of pillar 3 and extend to left.When backstitching, operating personnel will backstitch the front end of spanner 13 and depress downwards.
The described peristome of the sidewall of pillar 3 parts by frame F, the internal communication of extraneous gas suction inlet 12a and 12b and pillar 3 and horn 4.When cooling fan 16 was rotated, Sewing machines 1 came to pillar 3 and the horn 4 inner extraneous gas that suck by extraneous gas suction inlet 12a and 12b.
As shown in Figure 3, main shaft 20 has bearing 19 in the left side of belt pulley 18.As shown in Figure 2, bearing 19 is supported on the inboard of the base end part of horn 4 by parts of bearings 17.The inner face of the bottom of parts of bearings 17 and horn 4 is close to.The top of parts of bearings 17 and both sides are not close to the inner face of horn 4, and and the inner face of horn 4 between be provided with less gap.Parts of bearings 17 forms the wall of a part of blocking the air flow that the rotation because of cooling fan 16 produces.The air flow that cooling fan 16 produces flows out to the leading section of horn 4 through the gap of the top that is formed at parts of bearings 17 and both sides.
Cooling effect to Sewing machines 1 of the present invention describes.
Making in the action of Sewing machines 1, the rotation of the main shaft 20 that is driven by sewing machine electromotor 15, cooling fan 16 rotates all the time.The cooling fan 16 of rotation sucks extraneous gas from extraneous gas suction inlet 12a and the 12b that is located at motor lid 11 to pillar 3 and horn 4 inside by the peristome of pillar 3 sidewalls, and produces the leading section flow air stream to horn 4.Flow behind pillar 3 inner risings, from extraneous gas suction inlet 12a and 12b inhaled air through mobile around the sewing machine electromotor 15.Sewing machine electromotor 15 with just suck after the low extraneous gas of temperature contact, so Sewing machines 1 can cool off sewing machine electromotor 15 effectively.
The diameter of cooling fan 16 is greater than the diameter of sewing machine electromotor 15.Therefore the air flow of cooling fan 16 generations is around whole sewing machine electromotor 15.Cooling fan 16 can cool off sewing machine electromotor 15 effectively.
The top of the air flow process parts of bearings 17 that cooling fan 16 produces and the gap of both sides arrive the leading section of horn 4.The air flow that arrives horn 4 leading sections flows out to the outside through peristome 6 grades of being located at horn 4 front surfaces in order to pass for thread take-up tension lever 7.Because of the effect of air flow, press to malleation in the leading section of horn 4, therefore can prevent that principal vertical line bits, cotton-wool etc. enter horn 4 inside.
Supply to backstitch the peristome that spanner 13 passes at the extraneous gas suction inlet 12a of the front panel 11a of motor lid 11 upper shed double as.Therefore need not in Sewing machines 1 that the peristome that sucks the extraneous gas special use is set and maybe can reduce the peristome that sucks the extraneous gas special use, but simplified structure.
The wall that parts of bearings 17 conducts are blocked to the part of the leading section flow air stream of horn 4 works.This wall energy reduces the air quantity of blowing away to the front portion of horn 4 from peristome 6 grades of passing for thread take-up tension lever 7, therefore can alleviate the unhappy sensation that operating personnel feel when touching wind.
Pass through with high speed on the top of parts of bearings 17 and the gap of both sides to horn 4 leading section flow air stream.Air after horn 4 leading section temperature rise can not flow back to the base end part of the horn 4 that disposes sewing machine electromotor 15.Described wall double as is for the required parts of bearings 17 of the bearing 19 of supports main shaft 20.Therefore in Sewing machines 1, need not special-purpose wall is set, but simplified structure.
The following describes the alter mode of the embodiment of top explanation having been carried out partial alteration.
1) extraneous gas suction inlet 12a and 12b also can be formed on the other parts of motor lids 11 such as side panel of motor lid 11.Extraneous gas suction inlet 12a and 12b also can be formed on the front surface of pillar 3 or on the rear surface.
2) described wall also can be arranged with parts of bearings in 17 minutes.This wall needs only between the leading section of the base end part of the horn 4 that disposes cooling fan 16 and horn 4, just can be arranged at position arbitrarily.
As can be known, Sewing machines of the present invention has the extraneous gas suction inlet of a part that is formed at pillar from described detailed explanation, and has near the cooling fan that is disposed at the sewing machine electromotor in the base end part of the horn of shore supports.Cooling fan sucks extraneous gas from the extraneous gas suction inlet, and produces through flowing to horn leading section flow air around the sewing machine electromotor.Sewing machine electromotor be positioned at the extraneous gas suction inlet near, so air flow blows on the sewing machine electromotor under the low state of the temperature that has just sucked.Thereby the sewing function is cooled off Sewing machines effectively.
Claims (7)
1. Sewing machines comprises:
Pillar, this pillar is erected in the upper surface of base;
Horn, an end of this horn is by described shore supports;
Sewing machine electromotor, this sewing machine electromotor driving main shaft; With
Cooling fan, this cooling fan cools off described sewing machine electromotor,
Described cooling fan is fixed on the main shaft, and described cooling fan and described sewing machine electromotor are disposed at the inside of described horn, it is characterized in that:
Have the extraneous gas suction inlet, this extraneous gas suction inlet is formed on the part of described pillar,
Make described cooling fan and sewing machine electromotor adjacent and dispose,
Described cooling fan sucks extraneous gas from described extraneous gas suction inlet to the inside of described pillar and horn, produces through flowing to the other end of described horn flow air around the described sewing machine electromotor.
2. Sewing machines as claimed in claim 1 is characterized in that: described cooling fan has the diameter bigger than the diameter of described sewing machine electromotor.
3. Sewing machines as claimed in claim 1 or 2 is characterized in that: described extraneous gas suction inlet double as is for the peristome that spanner passes that backstitches that protrudes in described pillar front.
4. Sewing machines as claimed in claim 1 or 2 is characterized in that: the horn inside between the other end of described cooling fan and described horn is provided with the wall of a part of blocking described air flow.
5. Sewing machines as claimed in claim 3, the horn inside between the other end of described cooling fan and described horn is provided with the wall of a part of blocking described air flow.
6. Sewing machines as claimed in claim 4 is characterized in that: described wall double as supports the parts of bearings of the bearing of described main shaft.
7. Sewing machines as claimed in claim 5 is characterized in that: described wall double as supports the parts of bearings of the bearing of described main shaft.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008030547A JP2009189412A (en) | 2008-02-12 | 2008-02-12 | Sewing machine |
| JP2008-030547 | 2008-02-12 | ||
| JP2008030547 | 2008-02-12 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210214463.9A Division CN102733116B (en) | 2008-02-12 | 2009-02-09 | Sewing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101509182A true CN101509182A (en) | 2009-08-19 |
| CN101509182B CN101509182B (en) | 2012-10-24 |
Family
ID=41001705
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100041000A Expired - Fee Related CN101509182B (en) | 2008-02-12 | 2009-02-09 | Sewing machine |
| CN201210214463.9A Expired - Fee Related CN102733116B (en) | 2008-02-12 | 2009-02-09 | Sewing machine |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210214463.9A Expired - Fee Related CN102733116B (en) | 2008-02-12 | 2009-02-09 | Sewing machine |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2009189412A (en) |
| CN (2) | CN101509182B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101705586B (en) * | 2009-11-02 | 2012-10-03 | 顾飞龙 | Fan assembly structure of direct drive motor of sewing machine |
| CN101736540B (en) * | 2009-12-02 | 2013-05-01 | 顾飞龙 | Mechanism heat-dissipating device of sewing machine adopting direct drive motor |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104047119A (en) * | 2014-05-23 | 2014-09-17 | 王水争 | Air pressure countercurrent bag sewing machine |
| CN110396775B (en) * | 2019-08-19 | 2024-06-04 | 宁波申洲针织有限公司 | Automatic lower pendulum rib device of piecing together |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003019379A (en) * | 2001-05-01 | 2003-01-21 | Juki Corp | Cooling device for sewing machine |
| CN1676728B (en) * | 2004-03-29 | 2012-03-28 | 杜尔克普—阿德勒股份公司 | Sewing machine |
| JP2006326032A (en) * | 2005-05-27 | 2006-12-07 | Brother Ind Ltd | Dust-proof device of sewing machine |
| JP2007260060A (en) * | 2006-03-28 | 2007-10-11 | Brother Ind Ltd | Dust removal structure of sewing machine |
-
2008
- 2008-02-12 JP JP2008030547A patent/JP2009189412A/en active Pending
-
2009
- 2009-02-09 CN CN2009100041000A patent/CN101509182B/en not_active Expired - Fee Related
- 2009-02-09 CN CN201210214463.9A patent/CN102733116B/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101705586B (en) * | 2009-11-02 | 2012-10-03 | 顾飞龙 | Fan assembly structure of direct drive motor of sewing machine |
| CN101736540B (en) * | 2009-12-02 | 2013-05-01 | 顾飞龙 | Mechanism heat-dissipating device of sewing machine adopting direct drive motor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102733116A (en) | 2012-10-17 |
| JP2009189412A (en) | 2009-08-27 |
| CN102733116B (en) | 2014-11-05 |
| CN101509182B (en) | 2012-10-24 |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121024 Termination date: 20220209 |
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| CF01 | Termination of patent right due to non-payment of annual fee |