CN101418498A - Shuttle mechanism and sewing machine - Google Patents

Shuttle mechanism and sewing machine Download PDF

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Publication number
CN101418498A
CN101418498A CN 200810173418 CN200810173418A CN101418498A CN 101418498 A CN101418498 A CN 101418498A CN 200810173418 CN200810173418 CN 200810173418 CN 200810173418 A CN200810173418 A CN 200810173418A CN 101418498 A CN101418498 A CN 101418498A
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CN
China
Prior art keywords
shuttle
shaft gear
pedestal
adjustment screw
lower shaft
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Granted
Application number
CN 200810173418
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Chinese (zh)
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CN101418498B (en
Inventor
桑原幸治
岩越弘恭
大利人美
水野靖
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Brother Industries Ltd
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Brother Industries Ltd
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Publication of CN101418498A publication Critical patent/CN101418498A/en
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Publication of CN101418498B publication Critical patent/CN101418498B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

This invention refers to a spindle mechanism and a sewing machine, which make a spindle shaft gear and a lower shaft gear be composed of grease lubricant in a lubricating way. The spindle shaft gear includes a main body of spindle shaft gear, an upper side hub part and a lower side hub part. An accommodating part of a spindle base accommodates main body of spindle shaft gear. The upper side hub part extends from the upper end of the main body of spindle shaft gear to the upper end of the spindle base. The lower side hub part projects to the lower part of the spindle base from the lower end of the main body of spindle shaft gear. An adjusting bolt is configured to the end part of the lower side hub part and fixes the spindle shaft gear to the spindle shaft.

Description

Shuttle mechanism and Sewing machines
Technical field
The present invention relates to a kind of shuttle mechanism and Sewing machines, especially relate to the formation that makes shuttle shaft gear and lower shaft gear Castor Oil grease lubrication.
Background technology
Sewing machines has shuttle mechanism in its pedestal part.Shuttle mechanism has shuttle, shuttle axle, shuttle shaft gear, lower shaft gear and shuttle pedestal.Shuttle is become with interior fusiformis by outer shuttle.Outer shuttle has spur, and this spur is caught the upper thread ring that upper thread forms on the pinprick of suture needle.Interior shuttle is accommodated the bottom line shuttle.The rotatably mounted outer shuttle of shuttle axle.The shuttle shaft gear is fixed on the shuttle axle by adjustment screw.Lower shaft gear and shuttle shaft gear mesh and transmit and rotate.The shuttle pedestal has the resettlement section of accommodating shuttle shaft gear and lower shaft gear.Shuttle mechanism is delivered to the shuttle shaft gear with the rotation of lower shaft from lower shaft gear, and drives outer shuttle rotation by the shuttle axle.
In shuttle mechanism, need the sliding part between lower shaft gear and shuttle shaft gear and outer shuttle and the Nei Suo be lubricated, adopt the oil lubrication mode of utilizing lubricating oil usually.The occasion of horizontal shuttle for example, the wick fork that will extend from the grease-box of outside, a wick that again fork is obtained are directed to the inside of shuttle axle and the external sliding part supplying lubricating oil between shuttle and the Nei Suo.By another root wick that obtains from described wick fork, to lower shaft gear and shuttle shaft gear supplying lubricating oil.
In the structure of the shuttle drive division of in Japan Patent " communique is openly put down in special permission 6 years No. 304375 ", being put down in writing, so that driven wheel (being equivalent to lower shaft gear) and driven gear (being equivalent to the shuttle shaft gear) are carried out oil lubrication is purpose, be formed with receiving space in the covering box that passes for main shaft (being equivalent to lower shaft), this receiving space is accommodated driven wheel, driven gear and lubricating oil.In the bearing portion of the covering box of the shuttle drive division of in described communique, being put down in writing seal member is installed, driven wheel and driven gear is lubricated by the lubricating oil that is housed in the receiving space.
When the spur because of shuttle outside using for a long time wore and tore, operating personnel are shuttle changing more.When shuttle changing more, the operating personnel fixedly adjustment screw of shuttle shaft gear unscrew, and after having changed shuttle, operating personnel regulate the position with respect to the spur of the outer shuttle of suture needle, tighten adjustment screw and fix.
The two-needle sewing machine that the waistband of making trousers is stumbled etc. has two suture needles and a pair of shuttle mechanism, and this a pair of shuttle mechanism has the shuttle corresponding with each suture needle.When changing the interval of two suture needles according to the change of the size of making object, two-needle sewing machine also needs the interval of a pair of shuttle mechanism is regulated.
For example, when shuttle was horizontal shuttle, in order to regulate the interval of a pair of shuttle mechanism, operating personnel unscrewed the adjustment screw that lower shaft gear is fixed in lower shaft, and unscrew the adjustment screw of shuttle shaft gear.Then, operating personnel unscrew the bolt that the shuttle pedestal is fixed in pedestal part, regulate the position of shuttle pedestal so that the matched in clearance between the spur of suture needle and outer shuttle is after the predetermined distance, tight a bolt and the shuttle pedestal is fixed in the pedestal part.Then, operating personnel are benchmark with the position of shuttle pedestal, regulate after the position of lower shaft gear, tighten adjustment screw and lower shaft gear is fixed on the lower shaft.Then, operating personnel regulate the position with respect to the spur of the outer shuttle of suture needle, tighten the adjustment screw of shuttle shaft gear again and fix.
The wick fork that shuttle mechanism in the past will extend from grease-box is two systems, to both sides' supplying lubricating oil of the sliding part of lower shaft gear and shuttle shaft gear and outer shuttle and Nei Suo, so the supply of the lubricating oil of two systems is produced instability sometimes.The problem that causes the shuttle sintering thereby shuttle mechanism in the past exists that the supply of lubricating oil of the sliding part of external shuttle and Nei Suo lacks.
If, the lubricated oil supplying of the sliding part of outside shuttle and Nei Suo is stablized to the lubricated employing grease lubrication of lower shaft gear and shuttle shaft gear.When adopting grease lubrication, the sort of structure of the shuttle drive division put down in writing of communique is provided with the resettlement section of accommodating lower shaft gear and shuttle shaft gear, to the inside repack with grease of resettlement section as described.Because the shuttle mechanism put down in writing of described communique is equipped on the inside of resettlement section with the adjustment screw of shuttle shaft gear, so adjustment screw also becomes the state that adheres to lubricating grease all the time.
Because of the wearing and tearing of the spur of outer shuttle more during shuttle changing, when perhaps changing the interval of suture needle of two-needle sewing machine, the instrument of the adjustment screw of operation shuttle shaft gear can adhere to lubricating grease and make dirty.Therefore, shuttle mechanism in the past exists the problem that operating efficiency reduces, increases the unnecessary work of wiping lubricating grease etc. and waste lubricating grease etc.
Summary of the invention
The object of the present invention is to provide a kind of shuttle mechanism and Sewing machines, in this shuttle mechanism and this Sewing machines,, lubricating grease is attached on the adjustment screw of shuttle shaft gear even lower shaft gear and shuttle shaft gear are adopted grease lubrication.
Technical scheme 1 described shuttle mechanism and technical scheme 5 described Sewing machiness comprise: shuttle axle, the rotatably mounted interior shuttle of pedestal part that is equipped on Sewing machines of this shuttle axle; The shuttle shaft gear, this shuttle shaft gear is fixed on the described shuttle axle by adjustment screw; Lower shaft gear, this lower shaft gear and described shuttle shaft gear mesh and transmit and rotate; And the shuttle pedestal, this shuttle pedestal has the resettlement section of accommodating described shuttle shaft gear and described lower shaft gear, it is characterized in that: described adjustment screw is positioned at the outside of described shuttle pedestal, and the outside of this shuttle pedestal is positioned at and the opposite opposite side of a side that disposes described shuttle.
Adopt the shuttle mechanism and the technical scheme 5 described Sewing machiness of technical scheme 1, be applied on the described shuttle shaft gear and described lower shaft gear on lubricating grease can not spill to the outside from described resettlement section.Described adjustment screw is positioned at the outside of described shuttle pedestal, so lubricating grease can not be attached on the adjustment screw of shuttle shaft gear.
For more shuttle changing, perhaps regulate position with respect to the spur of the outer shuttle of suture needle, when operating personnel's tool using from the peripheral operation of resettlement section fixedly during the adjustment screw of shuttle shaft gear, instrument can not adhere to lubricating grease.Therefore, shuttle mechanism and Sewing machines can not produce the unnecessary work of wiping lubricating grease etc. and can not waste lubricating grease.
Technical scheme 2 described shuttle mechanisms and technical scheme 5 described Sewing machiness, described shuttle shaft gear has gear part and wheel hub (boss) portion, described gear part and the engagement of described lower shaft gear, described hub portion from described resettlement section to the outside of described shuttle pedestal outstanding and with described adjustment screw threaded engagement, described adjustment screw is positioned at the protuberance to the outstanding described hub portion in the outside of described shuttle pedestal.
Therefore, shuttle mechanism and Sewing machines can prevent that lubricating grease from spilling to the outside from described resettlement section by simple formation, and can make described adjustment screw be positioned at the outside of described shuttle pedestal.
Technical scheme 3 described shuttle mechanisms and technical scheme 5 described Sewing machiness are fixed in the rotatably mounted described hub portion of bearing of described shuttle pedestal.
Therefore, shuttle mechanism and the sewing function so that the form that the shuttle shaft gear rotates swimmingly the shuttle shaft gear is supported on the shuttle pedestal.
Technical scheme 4 described shuttle mechanisms and technical scheme 5 described Sewing machiness, described shuttle pedestal have the lid that covers described resettlement section.
Therefore, shuttle mechanism and Sewing machines can prevent that lubricating grease from spilling to the outside from described resettlement section by simple formation.
Description of drawings
Fig. 1 is the stereogram of the two-needle sewing machine M of a kind of embodiment of the present invention.
Fig. 2 is the exploded perspective view of shuttle mechanism 10 and lid 30.
Fig. 3 is the side view of shuttle mechanism 10 (lid 30 uninstalled states).
Fig. 4 is the cutaway view of shuttle mechanism 10.
The specific embodiment
Below with reference to embodiment and accompanying drawing preferred example of the present invention is described in detail.As shown in Figure 1, two-needle sewing machine M has pedestal part 1, column sections 2 and horn portion 3.The form setting that column sections 2 stands vertically with the right part from pedestal part 1.Horn portion 3 extends to left from the upper horizontal ground of column sections 2.The left part of horn portion 3 has shank 4 and thread take-up tension lever 5.By driving force, machine spindle (not shown) drives shank 4 liftings through needle bar crank mechanism (not shown).By thread take-up tension lever crank (not shown), described machine spindle makes thread take-up tension lever 5 swing along above-below direction.The shank folder 4a that is fixed in shank 4 lower ends has two suture needles 6.Have cloth feeding mechanism (not shown) and a pair of shuttle mechanism 10 (with reference to Fig. 2) in the inside of pedestal part 1, these a pair of shuttle mechanism 10 corresponding described two suture needles 6.Drive a pair of shuttle mechanism 10 rotations with the lower shaft 7 (with reference to Fig. 2) of described machine spindle interlock.Lower shaft 7 also drives cloth feeding mechanism.
Below a pair of shuttle mechanism 10 is described.The structure of a pair of shuttle mechanism 10 is substantially the same and a side structure only is described.To shown in Figure 4, shuttle mechanism 10 has shuttle pedestal 11, resettlement section 12, shuttle axle 13, shuttle shaft gear 14, horizontal shuttle 15, lower shaft gear 16 and lid 30 as Fig. 2.Lower shaft gear 16 is fixed on the lower shaft 7.Shuttle pedestal 11 is block integral pieces.The a plurality of bolts of shuttle pedestal 11 usefulness (not shown) are being fixed on the frame (not shown) of pedestal part 1 in the form with the direction adjusted position of the axis parallel of lower shaft 7.Shuttle pedestal 11 has resettlement section 12, and shuttle shaft gear 14 and lower shaft gear 16 are accommodated in this resettlement section 12.Resettlement section 12 has anterior resettlement section 12a and resettlement section, rear portion 12b.Anterior resettlement section 12a accommodates shuttle shaft gear 14.Resettlement section, rear portion 12b is connected in the rear end of anterior resettlement section 12a, and accommodates lower shaft gear 16.
Shuttle pedestal 11 has upper support wall 11a and lower support wall 11b in its left part, the place ahead.Between the upper support wall 11a of shuttle pedestal 11 and lower support wall 11b, has the gap, the shuttle shaft gear main body 14a of configurable shuttle shaft gear 14 in this gap.Shuttle axle 13 and the shuttle shaft gear 14 that is set on the shuttle axle 13 run through upper support wall 11a and lower support wall 11b along vertical.Lower support wall 11b has the hole that shuttle shaft gear main body 14a can pass.The outer shuttle 15a that on the upper end of shuttle axle 13, has horizontal shuttle 15 integratedly.Outer shuttle 15a portion within it rotatably accommodates interior shuttle 15b.Interior shuttle 15b portion within it is equipped with bottom line shuttle (not shown).Shuttle shaft gear main body 14a is equivalent to gear part of the present invention.
Shuttle shaft gear 14 has shuttle shaft gear main body 14a, upper side hub part 14b and the downside hub portion 14c that is made of helical gear.Upper side hub part 14b extends to the upper end of shuttle pedestal 11 from the upper end of shuttle shaft gear main body 14a.Downside hub portion 14c is outstanding to the below of shuttle pedestal 11 from the lower end of shuttle shaft gear main body 14a.Downside hub portion 14c is 12 outsides that extend to shuttle pedestal 11 from the resettlement section.The outside of portion is chimeric near the upper end of shuttle axle 13 has cartridge 18 and fixes.Packing ring 19 supports cartridge 18 with the lower end butt of cartridge 18.
Bearing 20 is fixed on the upper support wall 11a of shuttle pedestal 11.The upper side hub part 14b of bearing 20 rotatably mounted shuttle shaft gears 14.Bearing 21 is fixed on the lower support wall 11b of shuttle pedestal 11.Bearing 21 clogs the described hole of lower support wall 11b and rotatably mounted downside hub portion 14c with downside hub portion 14c and shuttle axle 13.Bearing 21 thicker than the part of the anterior resettlement section 12a of being positioned at of bearing 21 with the chimeric part of lower support wall 11b.Adjustment screw 17 is disposed at the protuberance to the outstanding downside hub portion 14c in the outside of shuttle pedestal 11.Adjustment screw 17 is fixed in shuttle shaft gear 14 on the shuttle axle 13.Central part penetration state ground at shuttle axle 13 is formed with entrance hole 13a.Entrance hole 13a is the hole that is used for importing from the wick (not shown) of grease-box (not shown) extension.Sliding part between external shuttle 15a of the lubricating oil of this wick supply and the Nei Suo 15b is lubricated.
Lower shaft gear 16 has 16a of lower shaft gear portion that is formed by the helical gear with the shuttle shaft gear main body 14a of shuttle shaft gear 14 engagement and the hub portion 16b that is connected to left from the 16a of lower shaft gear portion.Lower shaft gear 16 is chimeric with the outside of lower shaft 7.A plurality of adjustment screw 22 are fixed on the hub portion 16b of lower shaft gear 16 on the lower shaft 7.
As shown in Figure 2, lid 30 is the plate member that formed by thin steel plate.Lid 30 is to be used to clog the left side of resettlement section 12 and the parts of front end face.Lid 30 has back board 30a, step board 30b, left board 30c and preceding board 30d.Back board 30a clogs the left side of resettlement section, rear portion 12b.Step board 30b is formed on the front end of back board 30a, and is formed on the rear end of left board 30c.Left side board 30c clogs the left side of anterior resettlement section 12a.Preceding board 30d clogs the front end face of anterior resettlement section 12a.Back board 30a has circular port 31 and three holes 32 that the hub portion 16b of lower shaft gear 16 can pass.Left side board 30c has two holes 33.Preceding board 30d has two holes 34.
Shuttle pedestal 11 has three screw holes 36 at the rear of its left part, and has two screw holes 38 in the place ahead of its left part.Front end at shuttle pedestal 11 has two screw holes 40. Screw 35,37,39 is fixed in lid 30 on the shuttle pedestal 11 by hole 32,33,34 and screw hole 36,38,40 and (in Fig. 2, only illustrates each screw 35,37,39).The hub portion 16b of lower shaft gear 16 runs through the circular port 31 of lid 30.
On the flank of tooth of the gear part 16a of the upper and lower shaft gear 16 of the flank of tooth of the shuttle shaft gear main body 14a of shuttle shaft gear 14, be coated with the lubricating grease of lubricated usefulness.Lubricating grease can be from resettlement section that aforesaid lid 30 clogs 12 spill to the outside.
Below to as above the effect and the effect of the shuttle mechanism 10 of the Sewing machines of explanation describe.Therefore on shuttle mechanism 10, be provided with the lid 30 that clogs resettlement section 12, be applied to lubricating grease on the shuttle shaft gear 14 upper and lower shaft gears 16 and can be 12 do not spill to the outside from the resettlement section.Shuttle mechanism 10 is so that adjustment screw 17 is positioned at the form configuration of the outside of shuttle pedestal 11, so lubricating grease can not be attached on the adjustment screw 17 of shuttle shaft gear 14.Operating personnel utilize tool operation adjustment screw 17, with shuttle changing 15 more or regulate position with respect to the spur (not shown) of the outer shuttle 15a of suture needle 6.Adjustment screw 17 is positioned at the outside of resettlement section 12, so lubricating grease can not be attached on the instrument.Thereby shuttle mechanism 10 can not produce the unnecessary work of wiping lubricating grease etc. and can not waste lubricating grease.
The shuttle shaft gear main body 14a of shuttle shaft gear 14 and lower shaft gear 16 engagements.The downside hub portion 14c of shuttle shaft gear 14 from the resettlement section 12 inside outstanding to the outside of shuttle pedestal 11, and with adjustment screw 17 threaded engagement.Shuttle mechanism 10 is disposed at adjustment screw 17 end of the downside hub portion 14c that gives prominence to the outside of shuttle pedestal 11.By aforesaid simple formation, shuttle mechanism 10 can be disposed at adjustment screw 17 outside of shuttle pedestal 11 under the state that lubricating grease is spilt to the outside from resettlement section 12.
Be fixed in the bearing 20 rotatably mounted upper side hub part 14b of shuttle pedestal 11.Be fixed in the bearing 21 rotatably mounted downside hub portion 14c of shuttle pedestal 11.Therefore, can so that the form that shuttle shaft gear 14 rotates swimmingly shuttle shaft gear 14 is supported on the shuttle pedestal 11.
Lower shaft gear 16 also be with above-mentioned formation in the same manner, make hub portion 16b with lower shaft gear 16 be fixed in the outside that adjustment screw 22 on the lower shaft 7 is positioned at lid 30, so lubricating grease can not be attached on the adjustment screw 22.When regulating the position of shuttle mechanism 10, operating personnel utilize tool operation adjustment screw 22.Adjustment screw 22 is positioned at the outside of resettlement section 12, so lubricating grease can not be attached on the instrument.Thereby shuttle mechanism 10 can not produce the unnecessary work of wiping lubricating grease etc. and can not waste lubricating grease.
The variation that described embodiment has been carried out partial alteration describes below.
(1) shuttle shaft gear main body 14a, upper side hub part 14b and the downside hub portion 14c of formation shuttle shaft gear 14 are not limited to integrally formed parts, also can be made of the parts that separately form.
(2) in described embodiment, the shuttle mechanism 10 that will have horizontal shuttle 15 is illustrated as an example.But the present invention also can similarly implement the shuttle mechanism with vertical shuttle.The present invention is not limited to two-needle sewing machine, can also be applied to the single needle Sewing machines.

Claims (5)

1. shuttle mechanism comprises:
The shuttle axle, the rotatably mounted interior shuttle of pedestal part that is equipped on Sewing machines of this shuttle axle;
The shuttle shaft gear, this shuttle shaft gear is fixed on the described shuttle axle by adjustment screw;
Lower shaft gear, this lower shaft gear and described shuttle shaft gear mesh and transmit and rotate; And
The shuttle pedestal, this shuttle pedestal has the resettlement section of accommodating described shuttle shaft gear and described lower shaft gear,
It is characterized in that:
Described adjustment screw is positioned at the outside of described shuttle pedestal, and the outside of this shuttle pedestal is positioned at and the opposite opposite side of a side that disposes described shuttle.
2. shuttle mechanism as claimed in claim 1 is characterized in that:
Described shuttle shaft gear has gear part and hub portion, the engagement of described gear part and described lower shaft gear, described hub portion from described resettlement section to the outside of described shuttle pedestal outstanding and with described adjustment screw threaded engagement,
Described adjustment screw is positioned at the protuberance to the outstanding described hub portion in the outside of described shuttle pedestal.
3. shuttle mechanism as claimed in claim 2 is characterized in that:
Be fixed in the rotatably mounted described hub portion of bearing of described shuttle pedestal.
4. shuttle mechanism as claimed in claim 1 is characterized in that:
Described shuttle pedestal has the lid that covers described resettlement section.
5. Sewing machines is characterized in that:
Have as each described shuttle mechanism in the claim 1 to 4.
CN 200810173418 2007-10-23 2008-10-21 Shuttle mechanism and sewing machine Expired - Fee Related CN101418498B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2007274804A JP2009100901A (en) 2007-10-23 2007-10-23 Shuttle mechanism for sewing machine
JP2007-274804 2007-10-23
JP2007274804 2007-10-23

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CN101418498A true CN101418498A (en) 2009-04-29
CN101418498B CN101418498B (en) 2012-12-05

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CN 200810173418 Expired - Fee Related CN101418498B (en) 2007-10-23 2008-10-21 Shuttle mechanism and sewing machine

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CN (1) CN101418498B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015172421A1 (en) * 2014-05-13 2015-11-19 诸暨市新信机电科技有限公司 Shuttle-opening device for inner shuttle of rotating shuttle of embroidery machine
CN110761003A (en) * 2018-07-27 2020-02-07 拓卡奔马机电科技有限公司 Needle shuttle clearance automatic regulating mechanism and sewing machine
CN111118758A (en) * 2018-10-31 2020-05-08 拓卡奔马机电科技有限公司 Needle and shuttle cooperation automatic regulating mechanism and sewing machine
CN111118759A (en) * 2018-10-31 2020-05-08 拓卡奔马机电科技有限公司 Needle and shuttle cooperation automatic regulating mechanism and sewing machine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113478080B (en) * 2021-09-06 2022-02-18 佛山汇百盛激光科技有限公司 Position-changing workbench

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002186795A (en) * 2000-12-20 2002-07-02 Juki Corp Opener device for horizontal shuttle
JP2007202765A (en) * 2006-02-01 2007-08-16 Juki Corp Hook mechanism
CN2892920Y (en) * 2006-04-14 2007-04-25 浙江宝石缝纫机股份有限公司 Hand operating device for electronic shaping machine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015172421A1 (en) * 2014-05-13 2015-11-19 诸暨市新信机电科技有限公司 Shuttle-opening device for inner shuttle of rotating shuttle of embroidery machine
CN110761003A (en) * 2018-07-27 2020-02-07 拓卡奔马机电科技有限公司 Needle shuttle clearance automatic regulating mechanism and sewing machine
CN111118758A (en) * 2018-10-31 2020-05-08 拓卡奔马机电科技有限公司 Needle and shuttle cooperation automatic regulating mechanism and sewing machine
CN111118759A (en) * 2018-10-31 2020-05-08 拓卡奔马机电科技有限公司 Needle and shuttle cooperation automatic regulating mechanism and sewing machine
CN111118758B (en) * 2018-10-31 2021-08-27 拓卡奔马机电科技有限公司 Needle and shuttle cooperation automatic regulating mechanism and sewing machine

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Publication number Publication date
CN101418498B (en) 2012-12-05
JP2009100901A (en) 2009-05-14

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