CN203754990U - Sewing machine lower shaft rear sleeve plunger pump mechanism - Google Patents
Sewing machine lower shaft rear sleeve plunger pump mechanism Download PDFInfo
- Publication number
- CN203754990U CN203754990U CN201420046900.5U CN201420046900U CN203754990U CN 203754990 U CN203754990 U CN 203754990U CN 201420046900 U CN201420046900 U CN 201420046900U CN 203754990 U CN203754990 U CN 203754990U
- Authority
- CN
- China
- Prior art keywords
- lower shaft
- plunger
- oil
- overlap
- 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.)
- Expired - Lifetime
Links
- 238000009958 sewing Methods 0.000 title claims abstract description 20
- 239000000446 fuel Substances 0.000 claims description 13
- 238000006073 displacement reaction Methods 0.000 claims description 6
- 239000003921 oil Substances 0.000 abstract description 40
- 239000010687 lubricating oil Substances 0.000 abstract description 7
- 230000001050 lubricating effect Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 238000009825 accumulation Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Landscapes
- Sewing Machines And Sewing (AREA)
Abstract
The utility model belongs to the technical field of sewing machines, in particular to a sewing machine lower shaft rear sleeve plunger pump mechanism which comprises a lower shaft and a lower shaft rear sleeve. An eccentric section of the lower shaft is arranged in the lower shaft rear sleeve, an oil inlet hole, an oil outlet hole and a plunger hole are formed in the lower shaft rear sleeve in the radial direction, a plunger is arranged in the plunger hole, an elastic plug is arranged at the outer end of the plunger, the lower shaft rotates at high speed, the eccentric section acts on the plunger to enable the plunger to reciprocate to form a lower shaft rear sleeve plunger pump, a head lower jaw oil return pipe is arranged on the oil inlet hole, and the other end of the head lower jaw oil return pipe is arranged in a head lower jaw to absorb oil. The mechanism is used for absorbing residual lubricating oil for lubricating a head needle rod take-up mechanism and flowing into a casing lower jaw cavity, prevents the hidden danger that the lubricating oil is accumulated and overflowed and pollutes a sewing material. The lower shaft and the lower shaft rear sleeve form the plunger pump, and the structure is compact.
Description
Technical field:
The utility model belongs to sewing machine technique field, overlaps plunger pump machanism after refering in particular to a kind of lower shaft of sewing machine.
Background technology:
Sewing machines has possessed the rotating speed of 4000r/m to 5000r/m now, in high-speed cruising, on each parts, joint, can wear and tear and generate heat because of friction.Therefore need to provide lubricated in Sewing machines inside, to prevent that Yin Gaowen and wearing and tearing from causing the destruction of mechanism and part.
In current flat seam machine, use outer oil loading pump and outside food tray pump oil, to thread take-up mechanism, upper lower shaft, each overlaps, the number axis of lower shaft and bevel gear mechanism, feed mechanism, rotary shuttle mechanism carry out fuel feeding in connection.The bottom of whole machine is semi-open structure.In the course of work and when mobile, easily cause fluid to overflow, pollute workpiece and environment.
Also have at present in a kind of flat seam machine and adopt toothed belt transmission between lower shaft, inner each transmission mechanism adopts rolling bearing to replace axle sleeve to avoid using oil lubrication more.Although such method can be used a large amount of lubricating oil, mechanism adopts the parts such as rolling bearing to improve the manufacturing cost of machine, affects the universal use of this structure flat seam machine.
Summary of the invention:
The purpose of this utility model is to provide a kind of by cover formation plunger displacement pump after lower shaft, lower shaft, overlaps plunger pump machanism after the lower shaft of sewing machine of compact conformation.
The utility model is achieved in that
After lower shaft of sewing machine, overlap plunger pump machanism, after including lower shaft, lower shaft, overlap, the eccentric segment of described lower shaft is arranged on after lower shaft in cover, after lower shaft, in cover, be radially provided with fuel feed hole, oil outlet and plunger hole, in plunger hole, be provided with plunger, plunger outer end is provided with elasticity plug, lower shaft high speed rotating, eccentric segment acts on after plunger makes its reciprocating motion form lower shaft and overlaps plunger displacement pump, on described fuel feed hole, be provided with head lower jaw oil return pipe, the other end of head lower jaw oil return pipe is arranged on oil suction in head lower jaw.
Above-mentioned elasticity plug includes the baffle plate being installed on base plate, and one end is arranged on plunger, the other end holds out against the back-moving spring on baffle plate.
After above-mentioned lower shaft, in cover, be provided with reaming, be formed with trapped fuel chamber between reaming and lower shaft, oil outlet is arranged on the outside oil spout of reaming place to oil box.
Above-mentioned oil outlet is provided with two, circumferential uniform setting.
On above-mentioned lower shaft, be positioned at the helicla flute that cover after lower shaft is provided with the hand of spiral and lower shaft direction of rotation, helicla flute is positioned at the rear side of oil outlet, prevent that oil from overlapping from lower shaft and lower shaft between to external leakage.
On above-mentioned fuel feed hole, be provided with oil-Absorbing nozzle, oil-Absorbing nozzle is connected with head lower jaw oil return pipe.
The utility model compared to existing technology outstanding advantage is:
1, the utility model flows to the remaining lubricating oil in casing lower jaw chamber for sucking back as head shank thread take-up mechanism provides lubricated, prevents that lubricating oil accumulation from too much causing the hidden danger of excessive pollution sewing;
2, after the utility model passes through lower shaft, lower shaft, cover forms a plunger displacement pump, compact conformation.
Accompanying drawing explanation:
Fig. 1 is use state diagram of the present utility model;
Fig. 2 is generalized section of the present utility model.
The specific embodiment:
With specific embodiment, the utility model is further described below, referring to Fig. 1-2:
After lower shaft of sewing machine, overlap plunger pump machanism, after including lower shaft 1, lower shaft, overlap 2, the eccentric segment of described lower shaft 1 overlaps in 2 after being arranged on lower shaft, after lower shaft, overlap and in 2, be radially provided with fuel feed hole 3, oil outlet 4 and plunger hole 5, in plunger hole 5, be provided with plunger 6, plunger 6 outer ends are provided with elasticity plug, lower shaft 1 high speed rotating, eccentric segment acts on after plunger 6 makes its reciprocating motion form lower shaft and overlaps plunger displacement pump, on described fuel feed hole 3, be provided with head lower jaw oil return pipe 7, the other end of head lower jaw oil return pipe 7 is arranged on oil suction in head lower jaw.
Above-mentioned elasticity plug includes the baffle plate 9 being installed on base plate 8, and one end is arranged on plunger 6, the other end holds out against the back-moving spring 10 on baffle plate 9.
After above-mentioned lower shaft, overlap in 2 and be provided with reaming, between reaming and lower shaft 1, be formed with trapped fuel chamber, oil outlet 4 is arranged on the outside oil spout of reaming place to oil box 10.Oil box 10 includes box body and lid, is provided with the spill port of UNICOM's box body inner chamber on lid, and the spill port of the oil of oil outlet 4 ejections from lid enters in oil box 10.
Above-mentioned oil outlet 4 is provided with two, circumferential uniform setting.
On above-mentioned lower shaft 1, be positioned at and overlap 2 helicla flutes that are provided with the hand of spiral and lower shaft direction of rotation after lower shaft, helicla flute is positioned at the rear side of oil outlet 4, prevent oil from lower shaft, overlap 2 and lower shaft 1 between to external leakage.
On above-mentioned fuel feed hole 3, be provided with oil-Absorbing nozzle 11, oil-Absorbing nozzle 11 is connected with head lower jaw oil return pipe 7.
Operation principle of the present utility model is:
Lower shaft 1 rotates and drives plunger reciprocating motion, the oil in head lower jaw is pumped in plunger displacement pump by head lower jaw oil return pipe 7, and outwards spray by oil outlet 4, and oil return is to oil box 10.
The utility model flows to the remaining lubricating oil in casing lower jaw chamber for sucking back as head shank thread take-up mechanism provides lubricated, prevents that lubricating oil accumulation from too much causing the hidden danger of excessive pollution sewing
Above-described embodiment is only one of preferred embodiment of the present utility model; not with this, limit practical range of the present utility model; therefore: all equivalences of doing according to shape of the present utility model, structure, principle change, within all should being covered by protection domain of the present utility model.
Claims (6)
1. after lower shaft of sewing machine, overlap plunger pump machanism, after including lower shaft, lower shaft, overlap, it is characterized in that: the eccentric segment of described lower shaft is arranged on after lower shaft in cover, after lower shaft, in cover, be radially provided with fuel feed hole, oil outlet and plunger hole, in plunger hole, be provided with plunger, plunger outer end is provided with elasticity plug, lower shaft high speed rotating, eccentric segment acts on after plunger makes its reciprocating motion form lower shaft and overlaps plunger displacement pump, on described fuel feed hole, be provided with head lower jaw oil return pipe, the other end of head lower jaw oil return pipe is arranged on oil suction in head lower jaw.
2. after lower shaft of sewing machine according to claim 1, overlap plunger pump machanism, it is characterized in that: described elasticity plug includes the baffle plate being installed on base plate, one end is arranged on plunger, the other end holds out against the back-moving spring on baffle plate.
3. after lower shaft of sewing machine according to claim 1, overlap plunger pump machanism, it is characterized in that: after described lower shaft, in cover, be provided with reaming, be formed with trapped fuel chamber between reaming and lower shaft, oil outlet is arranged on the outside oil spout of reaming place to oil box.
4. after lower shaft of sewing machine according to claim 3, overlap plunger pump machanism, it is characterized in that: described oil outlet is provided with two, circumferential uniform setting.
5. after lower shaft of sewing machine according to claim 1, overlap plunger pump machanism, it is characterized in that: after being positioned at lower shaft on described lower shaft, overlap the helicla flute that is provided with the hand of spiral and lower shaft direction of rotation, helicla flute is positioned at the rear side of oil outlet, prevent oil from lower shaft cover and lower shaft between to external leakage.
6. after lower shaft of sewing machine according to claim 1, overlap plunger pump machanism, it is characterized in that: on described fuel feed hole, be provided with oil-Absorbing nozzle, oil-Absorbing nozzle is connected with head lower jaw oil return pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420046900.5U CN203754990U (en) | 2014-01-24 | 2014-01-24 | Sewing machine lower shaft rear sleeve plunger pump mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420046900.5U CN203754990U (en) | 2014-01-24 | 2014-01-24 | Sewing machine lower shaft rear sleeve plunger pump mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203754990U true CN203754990U (en) | 2014-08-06 |
Family
ID=51250289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420046900.5U Expired - Lifetime CN203754990U (en) | 2014-01-24 | 2014-01-24 | Sewing machine lower shaft rear sleeve plunger pump mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203754990U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105970510A (en) * | 2016-07-19 | 2016-09-28 | 杰克缝纫机股份有限公司 | Oil-proof device for sewing machine needle bar |
| CN106222903A (en) * | 2016-09-08 | 2016-12-14 | 苏州市众禾缝纫科技有限公司 | A kind of sewing machine directly drive plunger oil pump |
-
2014
- 2014-01-24 CN CN201420046900.5U patent/CN203754990U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105970510A (en) * | 2016-07-19 | 2016-09-28 | 杰克缝纫机股份有限公司 | Oil-proof device for sewing machine needle bar |
| CN105970510B (en) * | 2016-07-19 | 2019-02-22 | 杰克缝纫机股份有限公司 | A kind of needle bar of sewing machine oil-proof device |
| CN106222903A (en) * | 2016-09-08 | 2016-12-14 | 苏州市众禾缝纫科技有限公司 | A kind of sewing machine directly drive plunger oil pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: JACK SEWING CO., LTD. Free format text: FORMER NAME: NEW JACK SEWING MACHINE CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 318000 Taizhou Airport Road, Jiaojiang District, Zhejiang, No. 15 Patentee after: JACK SEWING MACHINE Co.,Ltd. Address before: 318000 No. 15, Airport Road, Jiaojiang District, Zhejiang, Taizhou Patentee before: NEW JACK SEWING MACHINE Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| 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: 318000 No. 15 Airport South Road, Jiaojiang District, Zhejiang, Taizhou Patentee before: JACK SEWING MACHINE Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140806 |