CN1840768B - Oil-leakage resistant needle bar guide pin bushing - Google Patents
Oil-leakage resistant needle bar guide pin bushing Download PDFInfo
- Publication number
- CN1840768B CN1840768B CN2005100313806A CN200510031380A CN1840768B CN 1840768 B CN1840768 B CN 1840768B CN 2005100313806 A CN2005100313806 A CN 2005100313806A CN 200510031380 A CN200510031380 A CN 200510031380A CN 1840768 B CN1840768 B CN 1840768B
- Authority
- CN
- China
- Prior art keywords
- oil
- guide pin
- needle bar
- pin bushing
- needle rod
- 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.)
- Expired - Fee Related
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- Rolling Contact Bearings (AREA)
Abstract
The invention discloses a leak-proof oil type needle rod guide pin,which is characterized by the following: the leak-proof oil type needle rod guide pin consists of needle rod guiding-sheathing body and needle rod installation hole; the inner wall of needle rod installation hole installs ring oil scraping groove; the oil return hole is installed in the oil scraping groove which passes through the needle rod guiding-sheathing body ; the oil sump is installed at the bottom of the needle rod guiding-sheathing body; the oil return hole is installed in the oil sump which connects to the needle rod installation hole; the inner wall of the needle rod guiding-sheathing body installs air-breather connects to oil hole; the upper end of the air-breather connects to the outer end of the needle rod installation hole; the oil return pipe is connected to the outer wall of needle rod guiding-sheathing body and outer end of the oil return hole and the out end of the ingress oil hole; one to six lines of ring oil scraper groove is installed in the needle rod installation hole of the needle rod guiding-sheathing body.
Description
Technical field
The present invention relates to a kind of needle bar guide pin bushing.
Background technology
The common easy leakage of oil of needle bar guide pin bushing at present.
Summary of the invention
The purpose of this invention is to provide a kind of oil-leakage resistant needle bar guide pin bushing that can effectively prevent leakage of oil.
The technical solution adopted for the present invention to solve the technical problems is: it comprises needle bar guide pin bushing body 1 and the shank installing hole 5 that wherein is provided with, and establish ring-type wiper groove 4 at shank installing hole 5 inwalls, in wiper groove 4, establish the spill port 3 that passes needle bar guide pin bushing body 1, establish oil-recovery tank 2 in the bottom of needle bar guide pin bushing body 1, be provided with the spill port 3 that communicates with shank installing hole 5 in the oil-recovery tank 2.
The present invention can establish the oil return link slot 6 that communicates with oil-recovery tank 2 and spill port 3 in the wall of needle bar guide pin bushing body 1, establish the passage 7 that communicates with it in oil return link slot 6 upper ends, and the upper end of passage 7 communicates with the outer end of shank installing hole 5.
Also can between the outer end of the outer end of the outer wall oil-recovery tank 2 of needle bar guide pin bushing body 1 and spill port 3, be connected oil returning tube.
Also can in the shank installing hole 5 of needle bar guide pin bushing body 1, establish 1 road or annular wiper groove 4 more than 1 road and corresponding spill port 3, preferably establish 1-6 road annular wiper groove.
The present invention is by being provided with wiper groove, spill port or oil-recovery tank, the phenomenon of leakage of oil in the time of can preventing the movable routing motion of shank and needle bar guide pin bushing effectively.
Description of drawings
Fig. 1 is a contour structures schematic diagram of the present invention.
Fig. 2 is the vertical profile structural representation of Fig. 1.
Fig. 3 be Fig. 1 overlook the broken section structural representation.
Among the figure: 1. the passage of needle bar guide pin bushing body 2. oil-recovery tanks 3. spill ports 4. wiper grooves 5. shank installing holes 6. oil return link slots 7. oil-recovery tanks.
The specific embodiment
Embodiment 1, the shank installing hole 5 that the present invention includes needle bar guide pin bushing body 1 and wherein be provided with, and establish ring-type wiper groove 4 at shank installing hole 5 inwalls, in wiper groove 4, establish the spill port 3 that passes needle bar guide pin bushing body 1, establish oil-recovery tank 2 in the bottom of needle bar guide pin bushing body 1, be provided with the spill port 3 that communicates with shank installing hole 5 in the oil-recovery tank 2.It the phenomenon of leakage of oil occurs by wiper groove, spill port or oil-recovery tank are set in the time of can preventing shank and needle bar guide pin bushing activity routing motion effectively.Consult Fig. 1 to Fig. 3.
Embodiment 2, the present invention can establish the oil return link slot 6 that communicates with oil-recovery tank 2 and spill port 3 in the wall of needle bar guide pin bushing body 1, also can establish the passage 7 that communicates with oil return link slot 6 in the wall of needle bar guide pin bushing body 1, the upper end of passage 7 communicates with the outer end of shank installing hole 5.Thereby oil return is flowed in the shank installing hole again, shank is lubricated, and make the oil return in the oil return link slot 6 flow more smooth and easy by passage 7 is set.Consult Fig. 1 to Fig. 3, all the other are with embodiment 1.
Embodiment 3, and the present invention also can be connected oil returning tube between the outer end of the outer end of the outer wall oil-recovery tank 2 of needle bar guide pin bushing body 1 and spill port 3.Consult Fig. 1 to Fig. 3, all the other are with embodiment 2.
Embodiment 4, and for strengthening anti-leakage of oil effect, the present invention also can establish 1 road or multiple tracks annular wiper groove 4 in the shank installing hole 5 of needle bar guide pin bushing body 1, preferably establishes 1-6 road annular wiper groove.Consult Fig. 1 to Fig. 3, all the other are with above-mentioned embodiment.
Obviously, in every wiper groove 4, can establish the spill port 3 that passes needle bar guide pin bushing body 1 more than 1 or 1, preferably 2 to 6, as be symmetrical arranged 2, or evenly distribute 3,4 etc.
Claims (2)
1. oil-leakage resistant needle bar guide pin bushing, it comprises needle bar guide pin bushing body (1) and the shank installing hole (5) that wherein is provided with, it is characterized in that: establish ring-type wiper groove (4) at shank installing hole (5) inwall, in wiper groove (4), establish the spill port (3) that passes needle bar guide pin bushing body (1), establish oil-recovery tank (2) in the bottom of needle bar guide pin bushing body (1), be provided with the spill port (3) that communicates with shank installing hole (5) in the oil-recovery tank (2); Establish the oil return link slot (6) that communicates with oil-recovery tank (2) and spill port (3) in the wall of needle bar guide pin bushing body (1), establish the passage (7) that communicates with it in oil return link slot (6) upper end, the upper end of passage (7) communicates with the outer end of shank installing hole (5).
2. oil-leakage resistant needle bar guide pin bushing according to claim 1 is characterized in that: establish 1 road or annular wiper groove (4) more than 1 road and corresponding spill port (3) in the shank installing hole (5) of needle bar guide pin bushing body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2005100313806A CN1840768B (en) | 2005-03-28 | 2005-03-28 | Oil-leakage resistant needle bar guide pin bushing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2005100313806A CN1840768B (en) | 2005-03-28 | 2005-03-28 | Oil-leakage resistant needle bar guide pin bushing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1840768A CN1840768A (en) | 2006-10-04 |
| CN1840768B true CN1840768B (en) | 2011-12-21 |
Family
ID=37029947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2005100313806A Expired - Fee Related CN1840768B (en) | 2005-03-28 | 2005-03-28 | Oil-leakage resistant needle bar guide pin bushing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1840768B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104589694A (en) * | 2015-02-04 | 2015-05-06 | 江苏久日数控机床有限公司 | Guiding column for hydraulic bending machine |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4419948A (en) * | 1981-05-16 | 1983-12-13 | Union Special G.M.B.H. | Needle bar lubricant sealing device |
| DE4107421A1 (en) * | 1991-03-08 | 1992-09-10 | Altenburger Ind Naehmasch | Sewing machine needle bar assembly - has ring groove at bottom of lower guide bush and drilling system to carry off surplus lubricant by suction |
| CN1504598A (en) * | 2002-11-28 | 2004-06-16 | 飞马缝纫机制造株式会社 | Oil draining device for sewing machine needle bar |
| CN1506518A (en) * | 2002-12-11 | 2004-06-23 | ��һ������ʽ���� | Oil discharging device for upper looper mechanism in overseaming machine |
-
2005
- 2005-03-28 CN CN2005100313806A patent/CN1840768B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4419948A (en) * | 1981-05-16 | 1983-12-13 | Union Special G.M.B.H. | Needle bar lubricant sealing device |
| DE4107421A1 (en) * | 1991-03-08 | 1992-09-10 | Altenburger Ind Naehmasch | Sewing machine needle bar assembly - has ring groove at bottom of lower guide bush and drilling system to carry off surplus lubricant by suction |
| CN1504598A (en) * | 2002-11-28 | 2004-06-16 | 飞马缝纫机制造株式会社 | Oil draining device for sewing machine needle bar |
| CN1506518A (en) * | 2002-12-11 | 2004-06-23 | ��һ������ʽ���� | Oil discharging device for upper looper mechanism in overseaming machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1840768A (en) | 2006-10-04 |
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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 | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111221 Termination date: 20120328 |