CN105970510A - Oil-proof device for sewing machine needle bar - Google Patents
Oil-proof device for sewing machine needle bar Download PDFInfo
- Publication number
- CN105970510A CN105970510A CN201610578698.4A CN201610578698A CN105970510A CN 105970510 A CN105970510 A CN 105970510A CN 201610578698 A CN201610578698 A CN 201610578698A CN 105970510 A CN105970510 A CN 105970510A
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- CN
- China
- Prior art keywords
- oil
- oil return
- needle bar
- shank
- memorizer
- 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.)
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Classifications
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B71/00—Lubricating or cooling devices
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The invention belongs to the technical field of sewing machines, and particularly relates to an oil-proof device for a sewing machine needle bar. The oil-proof device comprises the needle bar, a return oil storing device capable of collecting lubricating oil leaking between the needle bar and a needle bar lower bush is arranged on the needle bar, a return oil pipe is arranged at one side of the needle bar, the oil sucking end of the return oil pipe is located above the return oil storing device, and the return oil pipe is connected with the return oil device; in the vertical motion process, the needle bar drives the return oil storing device to move vertically, the return oil storing device moves to make contact with the oil sucking end of the return oil pipe, and the return oil pipe adsorbs lubricating oil in the return oil storing device through the return oil device and returns the oil. By means of oil return of the return oil pipe, the problem of leaked oil on the needle bar contaminates a sewing material is solved fundamentally, and the technical problem that fabric is contaminated due to lubricating oil leakage is avoided.
Description
Technical field:
The invention belongs to sewing machine technique field, refer in particular to a kind of needle bar of sewing machine oil-proof device.
Background technology:
Sewing machine shank during using needs easily to grind between lining under high-speed motion, shank and shank
Damage.In order to reduce abrasion, need high-speed motion parts are carried out oil lubrication.Due to needle bar of sewing machine with
There is gap under shank between lining, the most necessarily have fluid and ooze out from this gap, in order to
Prevent the oil contamination sewing oozed out, need the fluid oozed out is processed.
Notification number is that CN 204875131 U patent document discloses a kind of overlock-seaming machine needle rod oil-returning device, such as figure
1, shown in Fig. 2:
Including shank body 1, and it is arranged on the oil-recovery tank 2 of shank body 1 lower end, in described oil-recovery tank 2
Being provided with oil return scraping blade 3, upper end is provided with asphalt felt 4, and lower end is provided with sealing ring 5, described oil-recovery tank 2 end
Being provided with spill port 6 outside portion, described asphalt felt 4 is provided with oil line 7, described oil line 7 passes described oil return
Hole 6, penetrates in the oil pipe being arranged on shank body 1 side 8, and described asphalt felt 4 upper end is additionally provided with axle
Set 9, described oil return scraping blade 3 upper end extends to be provided with plectrum 10 outside axle sleeve, on described shank body 1
At plectrum 10 same level, and it is provided with plectrum washer 11 on the oil same vertical curve of line 7.
It is provided with shallow grooves 12 at the oil line of described oil-recovery tank 2 bottom.
The scraping blade of described oil return scraping blade 3 is Teflon material.
Described plectrum 10 is connected by connecting rod 13 with oil return scraping blade 3, described axle sleeve 9, oil-recovery tank 2 and
The annulus hole 14 for connecting rod motion it is provided with on asphalt felt 4.
Will necessarily there is the friction of persistence in the program in use oil return scraping blade 3 and asphalt felt 4, return
Oil scraping blade 3 can persistently weaken with asphalt felt 4 grease proofing ability in friction process, and permeability amount can be along with sewing
The growth of time of using of machine increases, so scheme life-span and reliability cannot ensure.
Summary of the invention:
It is an object of the invention to provide a kind of reliability effective needle bar of sewing machine oil-proof device high, grease proofing.
The present invention is achieved in that
A kind of needle bar of sewing machine oil-proof device, includes shank, shank is provided with can collect from shank and
The oil return memorizer of the lubricating oil oozed out between lining under shank, is provided with oil return pipe in the side of shank, returns
The oil absorbing end of oil pipe is positioned at the top of oil return memorizer, and oil return pipe is connected with oil return apparatus, and shank is being transported up and down
Driving oil return memorizer to move up and down during Dong, the motion of oil return memorizer contacts with the oil absorbing end of oil return pipe,
Oil return pipe is by the lubricating oil in oil return apparatus absorption oil return memorizer oil return.
In above-mentioned a kind of needle bar of sewing machine oil-proof device, the oil absorbing end of described oil return pipe is provided with oil suction material
Material, contacts with oil absorption material in the motion of oil return memorizer, the lubricating oil in oil absorption material absorption oil return memorizer
And by oil return apparatus oil return.
In above-mentioned a kind of needle bar of sewing machine oil-proof device, described oil absorption material is oil cotton or malthoid.
In above-mentioned a kind of needle bar of sewing machine oil-proof device, described oil return memorizer is sleeved on lining under shank
And shank line hook between shank on, and oil return memorizer and shank interference fit.
In above-mentioned a kind of needle bar of sewing machine oil-proof device, described oil return memorizer includes upper end open
Groove, is provided with collection oil pit on the baseplane of groove.
In above-mentioned a kind of needle bar of sewing machine oil-proof device, the limit at the slot opening of described oil return memorizer
Oil groove eaves it is provided with on Yan.
In above-mentioned a kind of needle bar of sewing machine oil-proof device, described oil return pipe includes stereoplasm tube and soft pipe,
Soft pipe is connected with stereoplasm tube, and the upper end of stereoplasm tube is arranged in casing through the installing hole in casing, in peace
Being provided with sealing shroud between dress hole and stereoplasm tube, soft pipe is connected with oil return apparatus.
In above-mentioned a kind of needle bar of sewing machine oil-proof device, described oil return apparatus is scavenge oil pump, oil return pipe
It is connected with scavenge oil pump；
Or described oil return apparatus includes motor, the rotating shaft of motor is provided with suction storehouse, oil return pipe and suction
Power storehouse connects.
In above-mentioned a kind of needle bar of sewing machine oil-proof device, described suction storehouse is connected with scavenge oil pump by oil pipe.
In above-mentioned a kind of needle bar of sewing machine oil-proof device, described scavenge oil pump includes lower axle and is sleeved on lower axle
On lower axle protheca or lower axle rear enclosure or lower axle in overlap, set on set in lower axle protheca or lower axle rear enclosure or lower axle
Being equipped with plunger hole, plunger is arranged in plunger hole, and plunger is connected with spring stop by plunger spring, spring
Baffle plate is fixed in casing, and lower axle rotates and drives plunger to move back and forth the oil on oil absorption material in plunger hole
Pump into oil return；
Or: described scavenge oil pump includes upper shaft and is sleeved in the upper shaft in upper shaft set or upper shaft protheca, in upper shaft
Being provided with plunger hole on middle set or upper shaft protheca, plunger is arranged in plunger hole, plunger by plunger spring with
Spring stop connects, and spring stop is fixed in casing, and upper shaft rotates and drives plunger back and forth to move in plunger hole
Move and the oil pump on oil absorption material is entered oil return.
The advantage that the present invention highlights compared to existing technology is:
1, the present invention pollutes the problem of sewing by oil return pipe oil return from solving permeability at shank in root, keeps away
Exempt to pollute the technical barrier of fabric because of oil seepage；
2, the present invention avoids use and shank to have the frizing part of friction, solves because the friction member life-span is not enough
Cause the defect of grease proofing weak effect；
3, it is static sealing between oil return memorizer and the shank of the present invention, has stopped the risk of leakage of oil at shank,
And coordinate scavenge oil pump suction stable, and scavenge oil pump utilizes the existing structure on machine to be designed machine itself
Change few, grease proofing effective, reliability is high, and service life is long.
Accompanying drawing illustrates:
Fig. 1 is the structural representation of background technology；
Fig. 2 is the oil return apparatus schematic diagram of background technology；
Fig. 3 is the structural representation of the present invention, and wherein scavenge oil pump, oil return pipe are positioned at casing；
Fig. 4 is the A portion enlarged diagram of Fig. 3；
Fig. 5 is the schematic diagram that the oil return pipe of the present invention is arranged in casing；
Fig. 6 is the schematic diagram of the scavenge oil pump of the present invention；
Fig. 7 is the schematic diagram of the oil return memorizer of the present invention；
Fig. 8 is the front view of the oil return memorizer of the present invention；
Fig. 9 is the B-B sectional view of Fig. 7；
Figure 10 is the simplified schematic diagram that Oil sucking device is motor and suction storehouse of the present invention.
Detailed description of the invention:
With specific embodiment, the invention will be further described below, sees Fig. 3 10:
A kind of needle bar of sewing machine oil-proof device, includes shank 15, shank 15 is provided with can collect from
The oil return memorizer 17 of the lubricating oil oozed out between lining 16 under shank 15 and shank, in the side of shank 15
Being provided with oil return pipe 18, the oil absorbing end of oil return pipe 18 is positioned at the top of oil return memorizer 17, oil return pipe 18 with
Oil return apparatus connects, and shank 15 drives oil return memorizer 17 to move up and down during moving up and down, oil return
The oil absorbing end contact of memorizer 17 motion oil return pipe 18, oil return pipe 18 is stored by oil return apparatus absorption oil return
Lubricating oil in device 17 oil return.The oil absorbing end of oil return pipe 18 can arrange oil absorption head 38.
In the case of suction is enough, oil return apparatus selects scavenge oil pump.If suction is inadequate, then select following knot
Structure: include motor 19, is provided with blade in the rotating shaft of motor 19, and blade is arranged on suction storehouse 20,
Oil return pipe 18 is connected with suction storehouse 20.Motor 19 rotates, and band moving vane rotates, and produces in suction storehouse 20
Raw lasting suction, is delivered to the oil absorbing end of oil return pipe 18, spills the most at last by oil return pipe 18 by suction
Lubricating oil reclaim.Suction storehouse 20 can be connected oil return with scavenge oil pump.
Oil return apparatus is except the mode of above-mentioned employing power oil return, it would however also be possible to employ circuit physically.
For oil suction more easily, the present invention arranges oil absorption material 21 at the oil absorbing end of oil return pipe 18.Oil suction
Material 21 typically uses oil cotton or malthoid, it is also possible to be made up of other materials.Move at oil return memorizer 17
Contacting with oil absorption material 21, oil absorption material 21 is adsorbed the lubricating oil in oil return memorizer 17 and is filled by oil return
Put back into oil.After arranging oil absorption material 21, oil return apparatus selects scavenge oil pump.
At present, the more commonly used on sewing machine oily line may also be used for using as oil absorption material.
In order to prevent oil return memorizer 17 from producing displacement in shank 15 moves, described oil return memorizer 17 overlaps
It is contained on shank 15, oil return memorizer 17 and shank 15 interference fit.Certainly, except interference fit, also
Modes such as can fixing with employing glue or be fixed by securing member.Oil return memorizer 17 can also use at shank
Upper fluting carries out containing the mode of oil and replaces.
Further, described oil return memorizer 17 lining 16 and shank line under shank hooks the pin between 22
On bar 15, and it is positioned on shank line hook 22.
Described oil return memorizer 17 includes the groove 23 of upper end open, arranges on the baseplane of groove 23
There is collection oil pit 24.Collection oil pit 24 is located close to one end of oil absorption material 21.Oil return can be deposited by collection oil pit 24
Lubricating oil in reservoir 17 is assembled.
In order to prevent in shank 15 high-speed motion, the lubricating oil in oil return memorizer 17 shakes out pollution fabric,
The edge of groove 23 opening part of described oil return memorizer 17 is provided with oil groove eaves 25.Oil groove eaves 25 is also
It is possible to prevent line hair, dust etc. to enter in oil return memorizer 17.
The oil return pipe 18 of the present invention includes stereoplasm tube 26 and soft pipe 27, and soft pipe 27 is with stereoplasm tube 26 even
Connecing, the upper end of stereoplasm tube 26 is arranged in casing 28 through the installing hole in casing 28, at installing hole with hard
Being provided with sealing shroud 29 between matter pipe 26, soft pipe 27 is connected with oil return apparatus.
The oil that sealing shroud 29 is possible to prevent in casing 28 from the gap between installing hole and stereoplasm tube 26 to extravasation
Leakage.
In order to make the oil circuit in oil return pipe 28 can keep unimpeded, described soft pipe 27 is connected with stereoplasm tube 26
One end doubling after by band binding formed several fonts.
Connection between oil return pipe 28 and scavenge oil pump for convenience, the oil inlet end of the scavenge oil pump of the present invention is provided with
Copper oil pipe 30, oil return pipe 18 is connected with copper oil pipe 30.
Specifically, scavenge oil pump can use following manner:
Described scavenge oil pump include lower axle 31 and the lower axle protheca being sleeved on lower axle 31 or lower axle rear enclosure 32 or under
Overlapping in axle, be provided with plunger hole in lower axle protheca or lower axle rear enclosure 32 or lower axle on set, plunger 33 is arranged
In plunger hole, plunger 33 is connected with spring stop 35 by plunger spring 34, and spring stop 35 is fixed
On casing 25 inwall, lower axle 31 rotates and drives plunger 33 to move back and forth oil absorption material 21 in plunger hole
On oil pump enter oil return.Owing to lower axle 31 is on the base plate 36 of casing 28, accordingly, spring stop
35 are fixed on base plate 36.
Scavenge oil pump is except being arranged on lower axle 31, it is also possible to be arranged in upper shaft:
Described scavenge oil pump includes upper shaft 37 and is sleeved in the upper shaft in upper shaft 37 set or upper shaft protheca, upper
Being provided with plunger hole on set or upper shaft protheca in axle, plunger is arranged in plunger hole, and plunger passes through plunger spring
Being connected with spring stop, spring stop is fixed in casing, and upper shaft rotates and drives plunger reciprocal in plunger hole
Move and the oil pump on oil absorption material 21 is entered oil return.
Certainly, scavenge oil pump can also form with one suction source of original oil pump improvement increase.
The operation principle of the present invention:
A small amount of lubricating oil that shank 15 oozes out can be eventually collected in oil return memorizer along shank 15 toward dirty
Inside 17, shank 15 can drive oil return memorizer 17 to move up and down during moving up and down, and oil return stores
Device 17 moves to eminence can be with the oil absorption material 21 on oil return pipe 18 or the direct and oil absorbing end of oil return pipe 18
Contact, be gathered in the lubricating oil inside collection oil pit 24 and can be adsorbed onto on oil absorption material 21 or directly be inhaled into
In oil return pipe 18, oil groove eaves 25 can prevent lubricating oil from shaking out in shank 15 high speed motions simultaneously,
And prevent line hair and dust from entering into inside oil return memorizer 17.The process that lower scavenge oil pump moves at sewing machine
In can produce suction, by oil return pipe 18 persistently by the oil inside oil absorption material 21 or oil absorbing end towards oil return pipe
Inhaling inside 18, the lubricating oil oozed out at shank 15 the most at last all reclaims, and reaches the function that shank 15 is grease proofing.
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 needle bar of sewing machine oil-proof device, includes shank, it is characterised in that: it is provided with on shank
The oil return memorizer of the lubricating oil oozed out between lining from shank and shank can be collected, set in the side of shank
Being equipped with oil return pipe, the oil absorbing end of oil return pipe is positioned at the top of oil return memorizer, and oil return pipe is connected with oil return apparatus,
Shank drives oil return memorizer to move up and down during moving up and down, the motion of oil return memorizer and oil return pipe
Oil absorbing end contacts, and oil return pipe is by the lubricating oil in oil return apparatus absorption oil return memorizer oil return.
A kind of needle bar of sewing machine oil-proof device the most according to claim 1, it is characterised in that: described time
The oil absorbing end of oil pipe is provided with oil absorption material, contacts with oil absorption material in the motion of oil return memorizer, oil absorption material
Adsorb the lubricating oil in oil return memorizer and by oil return apparatus oil return.
A kind of needle bar of sewing machine oil-proof device the most according to claim 2, it is characterised in that: described suction
Light wood material is oil cotton or malthoid.
A kind of needle bar of sewing machine oil-proof device the most according to claim 1, it is characterised in that: described time
Oil memorizer is sleeved under shank on the shank between lining and shank line hook, and oil return memorizer and shank mistake
It is full of cooperation.
A kind of needle bar of sewing machine oil-proof device the most according to claim 1, it is characterised in that: described time
Oil memorizer includes the groove of upper end open, is provided with collection oil pit on the baseplane of groove.
A kind of needle bar of sewing machine oil-proof device the most according to claim 5, it is characterised in that: described time
It is provided with oil groove eaves on edge at the slot opening of oil memorizer.
A kind of needle bar of sewing machine oil-proof device the most according to claim 1, it is characterised in that: described time
Oil pipe includes stereoplasm tube and soft pipe, and soft pipe is connected with stereoplasm tube, and the upper end of stereoplasm tube passes in casing
Installing hole be arranged in casing, between installing hole and stereoplasm tube, be provided with sealing shroud, soft pipe and oil return
Device connects.
8., according to a kind of needle bar of sewing machine oil-proof device described in any one of claim 17, its feature exists
In: described oil return apparatus is scavenge oil pump, and oil return pipe is connected with scavenge oil pump；
Or described oil return apparatus includes motor, being provided with blade in the rotating shaft of motor, blade is arranged on suction
In power storehouse, oil return pipe is connected with suction storehouse.
A kind of needle bar of sewing machine oil-proof device the most according to claim 8, it is characterised in that: described suction
Power storehouse is connected with scavenge oil pump by oil pipe.
A kind of needle bar of sewing machine oil-proof device the most according to claim 8, it is characterised in that: described
Scavenge oil pump includes overlapping, before lower axle in lower axle and the lower axle protheca being sleeved on lower axle or lower axle rear enclosure or lower axle
Putting in set or lower axle rear enclosure or lower axle and be provided with plunger hole, plunger is arranged in plunger hole, and plunger passes through post
Plug spring is connected with spring stop, and spring stop is fixed in casing, and lower axle rotates and drives plunger at plunger hole
Inside move back and forth and the oil pump on oil absorption material is entered oil return；
Or: described scavenge oil pump includes upper shaft and is sleeved in the upper shaft in upper shaft set or upper shaft protheca, in upper shaft
Being provided with plunger hole on middle set or upper shaft protheca, plunger is arranged in plunger hole, plunger by plunger spring with
Spring stop connects, and spring stop is fixed in casing, and upper shaft rotates and drives plunger back and forth to move in plunger hole
Move and the oil pump on oil absorption material is entered oil return.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610578698.4A CN105970510B (en) | 2016-07-19 | 2016-07-19 | A kind of needle bar of sewing machine oil-proof device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610578698.4A CN105970510B (en) | 2016-07-19 | 2016-07-19 | A kind of needle bar of sewing machine oil-proof device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105970510A true CN105970510A (en) | 2016-09-28 |
| CN105970510B CN105970510B (en) | 2019-02-22 |
Family
ID=56953017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610578698.4A Active CN105970510B (en) | 2016-07-19 | 2016-07-19 | A kind of needle bar of sewing machine oil-proof device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105970510B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5029545A (en) * | 1989-12-06 | 1991-07-09 | Union Special Corporation | Oil elimination device for a sewing machine |
| CN1244602A (en) * | 1998-08-07 | 2000-02-16 | 飞马缝纫机制造株式会社 | Recovering device for lubricant oil of sewing machine |
| CN2421301Y (en) * | 1999-02-08 | 2001-02-28 | 重机株式会社 | Lubricator for vertical spindle yarn barbed needle |
| CN1323932A (en) * | 2000-05-12 | 2001-11-28 | 大和缝纫机制造株式会社 | Sewing machine |
| CN203754990U (en) * | 2014-01-24 | 2014-08-06 | 新杰克缝纫机股份有限公司 | Sewing machine lower shaft rear sleeve plunger pump mechanism |
-
2016
- 2016-07-19 CN CN201610578698.4A patent/CN105970510B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5029545A (en) * | 1989-12-06 | 1991-07-09 | Union Special Corporation | Oil elimination device for a sewing machine |
| CN1244602A (en) * | 1998-08-07 | 2000-02-16 | 飞马缝纫机制造株式会社 | Recovering device for lubricant oil of sewing machine |
| CN2421301Y (en) * | 1999-02-08 | 2001-02-28 | 重机株式会社 | Lubricator for vertical spindle yarn barbed needle |
| CN1323932A (en) * | 2000-05-12 | 2001-11-28 | 大和缝纫机制造株式会社 | Sewing machine |
| CN203754990U (en) * | 2014-01-24 | 2014-08-06 | 新杰克缝纫机股份有限公司 | Sewing machine lower shaft rear sleeve plunger pump mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105970510B (en) | 2019-02-22 |
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| CP03 | Change of name, title or address |
Address after: 318000 no.1008, east section of Donghai Avenue, Sanjia, Jiaojiang District, Taizhou City, Zhejiang Province Patentee after: Jack Technology Co.,Ltd. Address before: 318010 No. 15 Airport South Road, Jiaojiang District, Zhejiang, Taizhou Patentee before: JACK SEWING MACHINE Co.,Ltd. |
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| CP03 | Change of name, title or address |