CN103015074B - Oil supply device of straight-end button hole sewing machine - Google Patents
Oil supply device of straight-end button hole sewing machine Download PDFInfo
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- CN103015074B CN103015074B CN201210583766.8A CN201210583766A CN103015074B CN 103015074 B CN103015074 B CN 103015074B CN 201210583766 A CN201210583766 A CN 201210583766A CN 103015074 B CN103015074 B CN 103015074B
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Abstract
The invention provides an oil supply device of a straight-end button hole sewing machine and belongs to the technical field of sewing machines. The problem that lubricating effects of an oil supply lubricating spindle and a spindle sleeve of the traditional straight-end button hole sewing machine are poor is solved. The oil supply device of the straight-end button hole sewing machine comprises a straight-end button hole sewing machine spindle, wherein the spindle is connected with a motor and driven by the motor to rotate; a spindle sleeve is sleeved on the spindle and fixed in a straight-end button hole sewing machine shell; an oil inlet pipe joint and an oil outlet pipe joint are arranged on the spindle sleeve; the oil inlet pipe joint is communicated with the straight-end button hole sewing machine shell through a hose; through a hose, the oil outlet pipe joint is communicated with a nozzle capable of spraying oil to lubricate each moving part in the straight-end button hole sewing machine shell; and an oil driving structure for sucking oil from the oil inlet pipe joint in a vacuum way and supplying oil to the oil outlet pipe joint is arranged between the spindle sleeve and the spindle. According to the invention, the lubricating effect of lubricating oil between the transmission spindle and the spindle sleeve is good and the lubricating oil can be repeatedly used.
Description
Technical field
The invention belongs to sewing machine technique field, relate to a kind of fueller of flat head keyhole sewing machine.
Background technology
Button holing sewing machine is very important a kind of equipment in garment machinery, and button holing sewing machine is called for short lockstitch button holder, and this lockstitch button holder is mainly used in processing the buttonhole in all kinds of dress ornament, is divided into straight buttonholing machine and eyelet buttonhole sewing machine two kinds.The shank of straight buttonholing machine, in the process of making, except moving up and down, also will do the motion of horizontal balancing point, make sewing needle can thrust sewing on the diverse location in needle plate hole, realize left line, right line, front and back noose, make to complete complete buttonhole.Shank swing performance for lockstitch button holder work stability very important, whether rationally and stable shank amplitude of fluctuation, has direct relation with the quality of lockstitch button holder sewing efficiency and the height of fault rate.
Along with the development of lockstitch button holder, existing lockstitch button holder generally all adopts motor to drive, then the transmission main shaft being arranged in lockstitch button holder casing stretches out housing and is connected with motor, the other end of transmission main shaft is then connected with each mechanism of lockstitch button holder, and completes the work energy of lockstitch button holder to each mechanism the power transmission of motor.
In such a configuration, the transmission main shaft due to lockstitch button holder stretches out casing and is connected with motor, and so transmission main shaft can rotate relative to casing, will wear and tear like this to transmission main shaft.Existing is generally be set in supporting seat on transmission main shaft by being provided with one between transmission main shaft and casing, in order to increase the lubricity between transmission main shaft and supporting seat inwall, felt is provided with, then by keeping the lubricating oil between supporting seat inwall and transmission main shaft to the irregular interpolation lubricating oil of felt at supporting seat inwall.Lubricating oil also can be brought each motion along with the motion of transmission main shaft by this lubricating oil, plays the effect of lubrication.Although the lubrication system of this structure can reduce the wearing and tearing of transmission main shaft, need artificial interpolation lubricating oil, and lubricating oil cannot be reused, hair bores also can exist wearing and tearing, this also increases maintenance cost.
Summary of the invention
The object of the invention is to there are the problems referred to above for existing technology, propose a kind of lubricating oil and can reuse and the fueller lubricating the good flat head keyhole sewing machine of each motion lubricant effect in flat head keyhole sewing machine.
Object of the present invention realizes by following technical proposal: a kind of fueller of flat head keyhole sewing machine, comprise flat head keyhole sewing machine main shaft, described main shaft is connected with motor and is rotated by driven by motor, a sheathed axle sleeve on main shaft and this axle sleeve is fixed in flat head keyhole sewing machine casing, it is characterized in that, axle sleeve is provided with inlet connector and flowline connection to subsea, described inlet connector is connected with flat head keyhole sewing machine oil sump by flexible pipe, described flowline connection to subsea is connected with the nozzle of each moving component in energy jet lubrication flat head keyhole sewing machine casing by flexible pipe, be provided with between axle sleeve and main shaft and move structure by the oil of vacuum from inlet connector oil suction and to flowline connection to subsea fuel feeding.
A fueller mainly sheathed axle sleeve on main shaft of this flat head keyhole sewing machine, axle sleeve is provided with inlet connector and flowline connection to subsea, inlet connector is connected with flat head keyhole sewing machine oil sump by flexible pipe, flowline connection to subsea is connected with the nozzle of each moving component in energy jet lubrication flat head keyhole sewing machine casing by flexible pipe, after nozzle sprays each moving component, lubricating oil flows back to flat head keyhole sewing machine oil sump and forms oil circulation, the dynamic structure of oil is provided with between axle sleeve and main shaft, the dynamic structure of this oil will enter between transmission main shaft and axle sleeve from inlet connector oil suction by the mode of vacuum, and the lubricating oil of inspiration is sent from flowline connection to subsea.
In the fueller of above-mentioned flat head keyhole sewing machine, described axle sleeve comprises the body of a ring-type, an end face of body has with this body by integral forming eccentric operate portions, above-mentioned inlet connector and flowline connection to subsea lay respectively on the external cylindrical surface of operate portions, and described inlet connector and flowline connection to subsea are connected with the eccentric orfice of operate portions respectively.The same center of circle of spliced eye of the eccentric orfice of this operate portions and the body transmission main shaft of axle sleeve is arranged, and this axle sleeve is fixed on casing by body.
In the fueller of above-mentioned flat head keyhole sewing machine, described oil moves on axle sleeve that structure is included between inlet connector and flowline connection to subsea and offers through hole, the plunger that can do linear reciprocating motion in through hole is provided with in through hole, in described plunger, end in contact on the periphery wall of above-mentioned main shaft, the outer face of plunger offers spring fitting blind hole, be provided with spring in described spring fitting blind hole, the main shaft periphery wall contacted with plunger offers one section of oil suction groove along the circumferential direction of main shaft.This through hole runs through the thicker eccentric hole wall of axle sleeve operate portions, when plunger is arranged in through hole, the lower end abutment of plunger main shaft oil suction groove bottom land, when main shaft is when moving, when the oil suction groove of main shaft periphery wall to move to through hole just pair, the spring of plunger outer end abuts against plunger and the inner of plunger is resisted against oil suction groove bottom land, being extruded by flowline connection to subsea by air in oil suction groove makes oil suction groove form vacuum in axle sleeve, main shaft carries out vacuum oil suction by inlet connector when rotating past inlet connector, lubricating oil sucks to be existed in oil suction groove, when main shaft rotates past flowline connection to subsea, by stretching into of plunger, lubricating oil in oil suction groove is sent by flowline connection to subsea.
In the fueller of above-mentioned flat head keyhole sewing machine, described oil suction groove bottom is arc surface, and the notch bottom surface, two ends in this oil suction slot length direction extends to main shaft periphery wall and notch and periphery wall seamlessly transit.The object of such setting is when plunger puts in through hole by the extruding of spring, the inner of plunger abuts against the periphery wall of main shaft, during motion of main shaft, move along oil suction groove bottom in main shaft in the inner of plunger, the notch bottom surface, two ends in oil suction slot length direction extends to main shaft periphery wall and notch and periphery wall seamlessly transit and be conducive to contacting all the time with plunger the inner leaning, and ensures oil suction in oil suction groove and squeezes the effect of oil.
In the fueller of above-mentioned flat head keyhole sewing machine, the inner face of described plunger is plane, and this plunger inner face and oil suction groove notch bottom surface are linear contact lay.Plunger abuts against main shaft all the time, move to the other end notch in oil suction slot length direction from one end notch in main shaft oil suction slot length direction with the rotary plunger of main shaft, plunger inner face and oil suction groove notch bottom surface be linear contact lay against, sealing effectiveness is better, the best results of fuel feeding.
In the fueller of above-mentioned flat head keyhole sewing machine, between described oil suction groove notch and plunger, there is gap.Oil suction groove width of rebate is slightly larger than the overall diameter of plunger, and the object arranged like this makes to there is lubricating oil between oil suction groove and plunger, contributes to lubricating the lubrication between plunger and through hole.
In the fueller of above-mentioned flat head keyhole sewing machine, be slidably connected between described plunger and through hole and form oil film seal between this plunger and through hole.The plunger contact surface slided in through hole between the two has one deck oil, and be called for short oil film, this is optimal sealing state, because between the two without friction and without leakage, the friction of plunger and through hole inwall and oil is very little.
In the fueller of above-mentioned flat head keyhole sewing machine, be rotationally connected between described main shaft and axle sleeve and form oil film seal between this main shaft and axle sleeve.Main shaft is High Rotation Speed in axle sleeve, and the oil in main shaft oil suction groove is under pressure and permeates between the two mutually, and just in time reach balance with extraneous air pressure when this lubricating oil penetrates between main shaft and axle sleeve, now both times are oil film seal.
In the fueller of above-mentioned flat head keyhole sewing machine, the casing relative with spring is fixed with spring mounting seat, above-mentioned outer spring end is resisted against on above-mentioned spring mounting seat.
In the fueller of above-mentioned flat head keyhole sewing machine, described spring mounting seat comprises the U-shaped structure bent by a stripe board, one end of spring mounting seat offers bolt hole, the other end offers spring locating slot, above-mentioned outer spring end is resisted against in above-mentioned spring locating slot, and spring mounting seat is fixed on casing through above-mentioned bolt hole by bolt by described spring mounting seat.
Compared with prior art, the fueller of this flat head keyhole sewing machine by offering oil suction groove on transmission main shaft, between this oil suction groove notch and plunger, there is gap, when transmission main shaft runs up on axle sleeve, there is lubricating oil in the gap between oil suction groove notch and plunger, this lubricating oil is to lubrication between transmission main shaft and axle sleeve, be provided with between axle sleeve and main shaft and move structure by the oil of vacuum from inlet connector oil suction and to flowline connection to subsea fuel feeding, inlet connector is connected with flat head keyhole sewing machine oil sump by flexible pipe, flowline connection to subsea is connected with the nozzle of each moving component in energy jet lubrication flat head keyhole sewing machine casing by flexible pipe, nozzle be injected in each moving component in flat head keyhole sewing machine casing finally get back to flat head keyhole sewing machine oil sump can arrive lubricating oil like this can reusable effect.
Accompanying drawing explanation
Fig. 1 is the perspective view of the fueller of this flat head keyhole sewing machine.
Fig. 2 is the perspective view that oil in the fueller of this flat head keyhole sewing machine moves structure.
Fig. 3 is the sectional structure schematic diagram that oil in the fueller of this flat head keyhole sewing machine moves structure.
Fig. 4 is the perspective view of main shaft in the fueller of this flat head keyhole sewing machine.
In figure, 1, main shaft; 1a, oil suction groove; 2, motor; 3, axle sleeve; 3a, body; 3b, operate portions; 3c, through hole; 4, casing; 5, inlet connector; 6, flowline connection to subsea; 7, nozzle; 8, plunger; 8a, spring fitting blind hole; 9, spring; 10, spring mounting seat; 10a, bolt hole; 10b, spring locating slot; 11, bolt.
Detailed description of the invention
Be below specific embodiments of the invention and by reference to the accompanying drawings, technical scheme of the present invention is further described, but the present invention be not limited to these embodiments.
As Fig. 1, shown in Fig. 2 or Fig. 3, the fueller of this flat head keyhole sewing machine forms primarily of flat head keyhole sewing machine main shaft 1 and motor 2, main shaft 1 is connected with motor 2 and drives rotation by motor 2, a sheathed axle sleeve 3 on main shaft 1, main shaft 1 rotates relative to axle sleeve 3, axle sleeve 3 is provided with inlet connector 5 and flowline connection to subsea 6, inlet connector 5 is connected with flat head keyhole sewing machine oil sump by flexible pipe, flowline connection to subsea 6 is connected with the nozzle 7 of each moving component in energy jet lubrication flat head keyhole sewing machine casing by flexible pipe, after nozzle 7 sprays each moving component, lubricating oil flows back to flat head keyhole sewing machine oil sump and forms oil circulation, the dynamic structure of oil is provided with between axle sleeve 3 and main shaft 1, the dynamic structure of this oil will enter between transmission main shaft 1 and axle sleeve 3 from inlet connector 5 oil suction by the mode of vacuum, and the lubricating oil of inspiration is sent from flowline connection to subsea 6, during actual manufacture, this axle sleeve 3 forms primarily of the body 3a of a ring-type, one-body molded with body 3a on an end face of body 3a have eccentric operate portions 3b, inlet connector 5 and flowline connection to subsea 6 lay respectively on the external cylindrical surface of operate portions 3b, inlet connector 5 is connected with the eccentric orfice of operate portions 3b respectively with flowline connection to subsea 6, the same center of circle of spliced eye of the eccentric orfice of this operate portions 3b and the body 3a main shaft 1 of axle sleeve 3 is arranged, and this axle sleeve 3 is fixed on casing 4 by body 3a.
During actual manufacture, the axle sleeve 3 of the dynamic structure of this oil mainly between inlet connector 5 and flowline connection to subsea 6 offers through hole 3c, this through hole 3c runs through the thicker eccentric hole wall of axle sleeve 3 operate portions 3b, the plunger 8 that can do linear reciprocating motion in through hole 3c is provided with in through hole 3c, in plunger 8, end in contact on the periphery wall of above-mentioned main shaft 1, the outer face of plunger 8 offers spring fitting blind hole 8a, spring 9 is provided with in spring fitting blind hole 8a, the preferred structure that spring 9 is installed is: on the casing 4 relative with spring 9, be fixed with spring mounting seat 10, spring 9 outer end is resisted against on above-mentioned spring mounting seat 10, this spring mounting seat 10 comprises the U-shaped structure bent by a stripe board, one end of spring mounting seat 10 offers bolt hole 10a, the other end offers spring locating slot 10b, spring 9 outer end is resisted against in above-mentioned spring locating slot 10b, spring mounting seat 10 is fixed on casing 4 through above-mentioned bolt hole 10a by bolt 11 by spring mounting seat 10.Main shaft 1 periphery wall contacted with plunger 8 offers one section of oil suction groove 1a along the circumferential direction of main shaft 1, when plunger 8 is arranged in through hole 3c, the lower end abutment of plunger 8 main shaft 1 oil suction groove 1a bottom land, when main shaft 1 is when moving, when the oil suction groove 1a of main shaft 1 periphery wall to move to through hole 3c just pair, the spring 9 of plunger 8 outer end abuts against plunger 8 and the inner of plunger 8 is resisted against oil suction groove 1a bottom land, being extruded by flowline connection to subsea 6 by air in oil suction groove 1a makes oil suction groove 1a form vacuum in axle sleeve 3, main shaft 1 carries out vacuum oil suction by inlet connector 5 when rotating past inlet connector 5, lubricating oil sucks to be existed in oil suction groove 1a, when main shaft 1 rotates past flowline connection to subsea 6, by stretching into of plunger 8, lubricating oil in oil suction groove 1a is sent by flowline connection to subsea 6.
When practical application, as shown in Figure 4, oil suction groove 1a bottom surface is arc surface, the notch bottom surface, two ends of this oil suction groove 1a length direction extends to main shaft 1 periphery wall and notch and periphery wall seamlessly transit, the inner face of plunger 8 is plane, this plunger 8 inner face and oil suction groove 1a notch bottom surface are linear contact lay, the main purpose of such setting is when plunger 8 puts in through hole 3c by the extruding of spring 9, the inner of plunger 8 abuts against the periphery wall of main shaft 1, when main shaft 1 moves, move bottom surface along oil suction groove 1a in main shaft 1 in the inner of plunger 8, the notch bottom surface, two ends of oil suction groove 1a length direction extends to main shaft 1 periphery wall and notch and periphery wall seamlessly transit and be conducive to contacting all the time with plunger 8 inner face leaning, ensure the oil suction in oil suction groove 1a and crowded oily effect.Have gap between oil suction groove 1a notch and plunger 8, oil suction groove 1a width of rebate is slightly larger than the overall diameter of plunger 8, and the object arranged like this makes to there is lubricating oil between oil suction groove 1a and plunger 8, contributes to lubricating the lubrication between plunger 8 and through hole 3c.
Be slidably connected between plunger 8 and through hole 3c and form oil film seal between this plunger 8 and through hole 3c, plunger 8 contact surface slided between the two in through hole 3c has one deck oil, be called for short oil film, this is optimal sealing state, because between the two without friction and without leakage, the friction of plunger 8 and through hole 3c inwall and oil is very little; Be rotationally connected between main shaft 1 and axle sleeve 3 and form oil film seal between this main shaft 1 and axle sleeve 3, main shaft 1 is High Rotation Speed in axle sleeve 3, oil in main shaft 1 oil suction groove 1a is under pressure and permeates between the two mutually, just in time reach balance with extraneous air pressure when this lubricating oil penetrates between main shaft 1 and axle sleeve 3, now both times are oil film seal.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present invention or surmount the scope that appended claims defines.
Although more employ herein: main shaft 1; Oil suction groove 1a; Motor 2; Axle sleeve 3; Body 3a; Operate portions 3b; Through hole 3c; Casing 4; Inlet connector 5; Flowline connection to subsea 6; Nozzle 7; Plunger 8; Spring fitting blind hole 8a; Spring 9; Spring mounting seat 10; Bolt hole 10a; Spring locating slot 10b; Term such as bolt 11 grade, but do not get rid of the possibility using other term.These terms are used to be only used to describe and explain essence of the present invention more easily; The restriction that they are construed to any one additional is all contrary with spirit of the present invention.
Claims (7)
1. the fueller of a flat head keyhole sewing machine, comprise flat head keyhole sewing machine main shaft (1), described main shaft (1) is connected with motor (2) and is driven by motor (2) and rotates, the upper sheathed axle sleeve (3) of main shaft (1) and this axle sleeve (3) is fixed in flat head keyhole sewing machine casing (4), it is characterized in that, axle sleeve (3) is provided with inlet connector (5) and flowline connection to subsea (6), described inlet connector (5) is connected with flat head keyhole sewing machine oil sump by flexible pipe, described flowline connection to subsea (6) is connected with the nozzle (7) of each moving component in energy jet lubrication flat head keyhole sewing machine casing (4) by flexible pipe, be provided with between axle sleeve (3) and main shaft (1) and move structure by the oil of vacuum from inlet connector (5) oil suction and to flowline connection to subsea (6) fuel feeding, described axle sleeve (3) comprises the body (3a) of a ring-type, one-body molded with body (3a) on an end face of body (3a) have eccentric operate portions (3b), described oil moves on axle sleeve (3) that structure is included between inlet connector (5) and flowline connection to subsea (6) and offers through hole (3c), this through hole (3c) runs through the thicker eccentric hole wall of axle sleeve (3) operate portions (3b), the plunger (8) that can do linear reciprocating motion in through hole (3c) is provided with in through hole (3c), described plunger (8) interior end in contact on the periphery wall of above-mentioned main shaft (1), main shaft (1) periphery wall contacted with plunger (8) offers one section of oil suction groove (1a) along the circumferential direction of main shaft (1), described oil suction groove (1a) bottom surface is arc surface, the notch bottom surface, two ends of this oil suction groove (1a) length direction extends to main shaft (1) periphery wall and notch and periphery wall seamlessly transit, the inner face of described plunger (8) is plane, this plunger (8) inner face and oil suction groove (1a) notch bottom surface are linear contact lay, between described oil suction groove (1a) notch and plunger (8), there is gap.
2. the fueller of flat head keyhole sewing machine according to claim 1, it is characterized in that, above-mentioned inlet connector (5) and flowline connection to subsea (6) lay respectively on the external cylindrical surface of operate portions (3b), and described inlet connector (5) is connected with the eccentric orfice of operate portions (3b) respectively with flowline connection to subsea (6).
3. the fueller of flat head keyhole sewing machine according to claim 1 and 2, it is characterized in that, described oil moves on outer face that structure is also included in plunger (8) and offers spring fitting blind hole (8a), is provided with spring (9) in described spring fitting blind hole (8a).
4. the fueller of flat head keyhole sewing machine according to claim 3, it is characterized in that, be slidably connected between described plunger (8) and through hole (3c) and form oil film seal between this plunger (8) and through hole (3c).
5. the fueller of flat head keyhole sewing machine according to claim 3, it is characterized in that, be rotationally connected between described main shaft (1) and axle sleeve (3) and form oil film seal between this main shaft (1) and axle sleeve (3).
6. the fueller of flat head keyhole sewing machine according to claim 3, it is characterized in that, the casing (4) relative with spring (9) is fixed with spring mounting seat (10), and above-mentioned spring (9) outer end is resisted against on above-mentioned spring mounting seat (10).
7. the fueller of flat head keyhole sewing machine according to claim 6, it is characterized in that, described spring mounting seat (10) comprises the U-shaped structure bent by a stripe board, one end of spring mounting seat (10) offers bolt hole (10a), the other end offers spring locating slot (10b), above-mentioned spring (9) outer end is resisted against in above-mentioned spring locating slot (10b), spring mounting seat (10) is fixed on casing (4) through above-mentioned bolt hole (10a) by bolt (11) by described spring mounting seat (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210583766.8A CN103015074B (en) | 2012-12-27 | 2012-12-27 | Oil supply device of straight-end button hole sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210583766.8A CN103015074B (en) | 2012-12-27 | 2012-12-27 | Oil supply device of straight-end button hole sewing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103015074A CN103015074A (en) | 2013-04-03 |
| CN103015074B true CN103015074B (en) | 2015-03-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210583766.8A Expired - Fee Related CN103015074B (en) | 2012-12-27 | 2012-12-27 | Oil supply device of straight-end button hole sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103015074B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103290628A (en) * | 2013-06-10 | 2013-09-11 | 浙江银工缝纫机有限公司 | Main shaft lubricating mechanism of straight buttonhole machine |
| CN108193395A (en) * | 2018-03-21 | 2018-06-22 | 吴江市佳格精密机械有限公司 | A kind of fueller of flat head keyhole sewing machine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2148083Y (en) * | 1992-08-22 | 1993-12-01 | 中国标准缝纫机公司陕西缝纫机厂 | Oil suction and supply device for sewing machine |
| CN2157203Y (en) * | 1993-05-05 | 1994-02-23 | 中国标准缝纫机公司 | Oil suction supply device for overedging machine |
| CN2194920Y (en) * | 1993-05-05 | 1995-04-19 | 中国标准缝纫机公司 | Oil Suction Supply Device for Plain Sewing Machine |
| CN2583142Y (en) * | 2002-11-03 | 2003-10-29 | 徐云飞 | Blind stitch sewing machine automatic lubricating device |
| CN2931521Y (en) * | 2006-06-27 | 2007-08-08 | 黄华场 | High-head sewing machine lubricating system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2937177Y (en) * | 2006-07-24 | 2007-08-22 | 上海贵衣缝纫设备有限公司 | Oil-return device of needle bar position in electronic sewing machine |
-
2012
- 2012-12-27 CN CN201210583766.8A patent/CN103015074B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2148083Y (en) * | 1992-08-22 | 1993-12-01 | 中国标准缝纫机公司陕西缝纫机厂 | Oil suction and supply device for sewing machine |
| CN2157203Y (en) * | 1993-05-05 | 1994-02-23 | 中国标准缝纫机公司 | Oil suction supply device for overedging machine |
| CN2194920Y (en) * | 1993-05-05 | 1995-04-19 | 中国标准缝纫机公司 | Oil Suction Supply Device for Plain Sewing Machine |
| CN2583142Y (en) * | 2002-11-03 | 2003-10-29 | 徐云飞 | Blind stitch sewing machine automatic lubricating device |
| CN2931521Y (en) * | 2006-06-27 | 2007-08-08 | 黄华场 | High-head sewing machine lubricating system |
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|---|---|
| CN103015074A (en) | 2013-04-03 |
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