CN103952864B - The manufacturing technique of the outer shuttle of sewing-machine rotating shuttle - Google Patents
The manufacturing technique of the outer shuttle of sewing-machine rotating shuttle Download PDFInfo
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- CN103952864B CN103952864B CN201410173981.XA CN201410173981A CN103952864B CN 103952864 B CN103952864 B CN 103952864B CN 201410173981 A CN201410173981 A CN 201410173981A CN 103952864 B CN103952864 B CN 103952864B
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- 238000000034 method Methods 0.000 title claims abstract description 36
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- 238000005516 engineering process Methods 0.000 claims abstract description 21
- 238000003801 milling Methods 0.000 claims abstract description 19
- 239000002184 metal Substances 0.000 claims abstract description 11
- 229910052751 metal Inorganic materials 0.000 claims abstract description 11
- 238000002347 injection Methods 0.000 claims abstract description 8
- 239000007924 injection Substances 0.000 claims abstract description 8
- 238000010438 heat treatment Methods 0.000 claims abstract description 7
- 239000000047 product Substances 0.000 claims description 14
- 239000000843 powder Substances 0.000 claims description 13
- 239000011265 semifinished product Substances 0.000 claims description 13
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 12
- 238000005245 sintering Methods 0.000 claims description 12
- 239000002245 particle Substances 0.000 claims description 10
- 239000011230 binding agent Substances 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 6
- 238000005238 degreasing Methods 0.000 claims description 3
- 238000000280 densification Methods 0.000 claims description 3
- 238000005553 drilling Methods 0.000 claims description 3
- 239000000428 dust Substances 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 238000009958 sewing Methods 0.000 description 4
- IXSZQYVWNJNRAL-UHFFFAOYSA-N etoxazole Chemical group CCOC1=CC(C(C)(C)C)=CC=C1C1N=C(C=2C(=CC=CC=2F)F)OC1 IXSZQYVWNJNRAL-UHFFFAOYSA-N 0.000 description 2
- 238000004663 powder metallurgy Methods 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
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- Sewing Machines And Sewing (AREA)
Abstract
The invention discloses a kind of manufacturing technique of outer shuttle of sewing-machine rotating shuttle, comprise blank-making technology, turnning and milling technique, glossing and Technology for Heating Processing, described blank-making technology is made of one piece by blank (9) by metal injection molded, and on blank (9), be provided with boss (7), in turnning and milling technique, described blank (9) carrys out auxiliary clamping position by boss (7), finally at the final step of turnning and milling technique, the boss (7) on blank (9) is milled.Like this, in the blank that blank-making technology obtains, pre-set boss, make the clamping being convenient to double round platform position in turnning and milling technique, thus facilitate the processing of external shuttle body, therefore, more can ensure the quality of product.
Description
Technical field
The present invention relates to Sewing machines accessory technical field, is specifically a kind of manufacturing technique of outer shuttle of sewing-machine rotating shuttle.
Background technology
Sewing-machine rotating shuttle, be one of them parts of Sewing machines, it comprises Nei Suo and outer shuttle.Wherein, interior shuttle is fixed on the base plate of casing by positioning handle, and outer shuttle makes high speed rotary motion under the drive of lower shaft.The rotating shuttle of prior art, if publication number disclosed on State Intellectual Property Office website is the patent of CN101033576A, it discloses a kind of hook race for sewing, comprise shuttle race and shuttle frame, shuttle race comprises shuttle race body, Yue Quan and hook the end of a thread; Yue Quan, hook the end of a thread are arranged on outside shuttle race body, and shuttle race body is provided with boss, hook the end of a thread and are provided with the sunk part mated with boss, hook the end of a thread and are connected with shuttle race body by installing hole.In other words, hook the end of a thread and shuttle race body are split-type structurals, and both are connected by screw together.Therefore, there is following shortcoming in the rotating shuttle of this structure: because sewing machine rotation itself is that a volume is little, the parts of complex structure, thin-walled, the volume of each part corresponding also little, structure is also complicated, and hook the end of a thread and be split-type structural with shuttle race body and together with being connected by screw, therefore it is very time-consuming for processing and assemble these tiny parts, greatly reduces production efficiency.
The common employing of interior shuttle of existing sewing-machine rotating shuttle be that the techniques such as turnning and milling are made, manufacturing technique is complicated, cost is high, quality is unstable.Therefore, also occur in prior art that the technology that have employed powder metallurgy manufactures, but, traditional powder metallurgical technique goods, because the material of finished product is uneven, mechanical performance is low, and not easily forming thin-walled, baroque part, therefore, it is also not suitable for the part of this complex structure of shuttle in sewing-machine rotating shuttle, thin-walled.In addition, powder metallurgy out after semi-finished product also to carry out the processing such as turnning and milling, but, the boss of outer shuttle has individual flat sidewall, therefore, that carries out outer shuttle body at external shuttle adds man-hour, need to clamp boss, and the existence of flat sidewall have impact on gripping boss greatly, must grip by other instrument, therefore, considerably increase the difficulty of processing, best guarantee all be can not get to the dimensional accuracy of product and positional precision.
Summary of the invention
Technical problem to be solved by this invention is, provides one to be convenient to assembling, easily to process, and ensures the manufacturing technique of the outer shuttle of the sewing-machine rotating shuttle of precision.
For solving the problems of the technologies described above, the manufacturing technique of the outer shuttle of sewing-machine rotating shuttle provided by the invention, comprise blank-making technology, turnning and milling technique, glossing and Technology for Heating Processing, described blank-making technology is made of one piece by blank by metal injection molded, and be provided with boss on blank, in turnning and milling technique, described blank carrys out auxiliary clamping position by boss, finally at the final step of turnning and milling technique, the boss on blank is milled.Described blank comprises outer shuttle body and half round platform, and outer shuttle body comprises annular sidewall and diapire, and half round platform is positioned at the outer face place of diapire.The flat sidewall that the sidewall of half described round platform comprises semi arch sidewall and connects with semi arch sidewall, the diapire at flat sidewall place has the half-lune holes with the inner space of outer shuttle body; Described boss is cylindrical circular bosses, and its axis is vertical with flat sidewall, and the top of boss is arc surface; Half round platform is in the cross section at the axis place of boss, and the top of boss and the semi arch sidewall of half round platform are same circle.
Described blank-making technology comprises mixing step, injecting step, defatting step and sintering step; In described injecting step, the metal dust of use is iron(-)base powder, and what formed after sintering step is described blank.
The particle diameter of described iron(-)base powder is at 0.5 μm ~ 20 μm, after first metal solid powder and organic binder bond is evenly mixing, under the state of heating plasticizing, injection (mo(u)lding) machine to inject in mould and curing molding, take out from mould again, thus produce the first semi-finished product; Then carry out degreasing, the organic binder bond in the first semi-finished product is little by little discharged along the minim channel between particle, obtains the second semi-finished product; Finally the second semi-finished product are carried out sintering shrinkage, make product densification in order to the hole eliminated between powder particle, the furnace temperature of sintering is 1200 DEG C ~ 1300 DEG C, thus obtains blank.
The described outer annular sidewall of shuttle body and the junction of diapire have oblique angle breach, and described oblique angle breach and annular sidewall are formed and hook line portion, and hook the end face of top higher than annular sidewall in line portion; Described boss is positioned on the sidewall of half round platform.
The head in described hook line portion is tack, and the root that oblique angle breach is hooking line portion also has small gap.
In described turnning and milling technique, first by boss and semi arch sidewall, half round platform is clamped on lathe, and externally shuttle body is processed; Upset part to be processed, be clamped on lathe by outer shuttle body, double round platform is processed, and after completing other dimensional requirement, mills boss until flat sidewall is a plane; Finally at the center thread mill drilling of the original boss of flat sidewall, obtain finished product.
The present invention compared with prior art, has the following advantages:
1) technology of metal injection moulding is utilized, make half round platform and outer shuttle body integrally formed by the mould on injection machine, make that the finished product internal particle that obtains is even, mechanical performance is strong, and be more applicable for thin-walled, baroque part, therefore, it can produce the part resembling this complex structure of sewing-machine rotating shuttle China and foreign countries' shuttle, thin-walled in enormous quantities.；
2) pre-set boss in the blank obtained at blank-making technology, utilize the semi arch sidewall of boss and half round platform to be the feature of same arc surface, make the clamping being convenient to double round platform position in turnning and milling technique, thus facilitate the processing of external shuttle body; And finally because the structure of product needs to mill boss again, thus ensure that the required precision of each size on outer shuttle, therefore, the quality of product more can be ensured.
Accompanying drawing explanation
Fig. 1 is the main TV structure flow chart in the manufacturing technique of the outer shuttle of sewing-machine rotating shuttle of the present invention from failed part to product.
Fig. 2 is the left TV structure flow chart in the manufacturing technique of the outer shuttle of sewing-machine rotating shuttle of the present invention from failed part to product.
Wherein: 1,1, half round platform; 1-1, semi arch sidewall; 1-2, flat sidewall; 2, half-lune holes; 3, outer shuttle body; 3-1, diapire; 3-2, annular sidewall; 4, line portion is hooked; 5, oblique angle breach; 6, small gap; 7, boss; 7-1, arc surface; 8, screwed hole; 9, blank; 10, finished product.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in more detail.
From the structure flow chart of the manufacturing technique of the outer shuttle of the sewing-machine rotating shuttle of the present invention shown in Fig. 1 and Fig. 2, it comprises blank-making technology, turnning and milling technique, glossing and Technology for Heating Processing, described blank-making technology is made of one piece by blank 9 by metal injection molded, and on blank 9, be provided with boss 7, in turnning and milling technique, described blank 9 carrys out auxiliary clamping position by boss 7, finally at the final step of turnning and milling technique, is milled by the boss 7 on blank 9.
Described blank 9 comprises outer shuttle body 3 and half round platform 1, and outer shuttle body 3 comprises annular sidewall 3-2 and diapire 3-1, and half round platform 1 is positioned at the outer face place of diapire 3-1.
The flat sidewall 1-2 that the sidewall of half described round platform 1 comprises semi arch sidewall 1-1 and connects with semi arch sidewall 1-1, the diapire 3-1 at flat sidewall 1-2 place has the half-lune holes 2 with the inner space of outer shuttle body 3.Described boss 7 is cylindrical circular bosses, and its axis is vertical with flat sidewall 1-2, and the top of boss 7 is arc surface 7-1; Half round platform 1 is in the cross section at the axis place of boss 7, and the top of boss 7 and the semi arch sidewall 1-1 of half round platform 1 are same circle.
Described blank-making technology comprises mixing step, injecting step, defatting step and sintering step; In described injecting step, the metal dust of use is iron(-)base powder, and what formed after sintering step is described blank 9.
The particle diameter of described iron(-)base powder is at 0.5 μm ~ 20 μm, after first metal solid powder and organic binder bond is evenly mixing, under the state of heating plasticizing, injection (mo(u)lding) machine to inject in mould and curing molding, take out from mould again, thus produce the first semi-finished product; Then carry out degreasing, the organic binder bond in the first semi-finished product is little by little discharged along the minim channel between particle, obtains the second semi-finished product; Finally the second semi-finished product are carried out sintering shrinkage, make product densification in order to the hole eliminated between powder particle, the furnace temperature of sintering is 1200 DEG C ~ 1300 DEG C, thus obtains blank 9.
The described annular sidewall 3-2 of outer shuttle body 3 and the junction of diapire 3-1 have oblique angle breach 5, and described oblique angle breach 5 is formed with annular sidewall 3-2 and hooks line portion 4, and hooks the end face of top higher than annular sidewall 3-2 in line portion 4.Described boss 7 is positioned on the sidewall of half round platform 1.
The head in described hook line portion 4 is tack, and the root that oblique angle breach 5 is hooking line portion 4 also has small gap 6.
In described turnning and milling technique, first by boss 7 and semi arch sidewall 1-1, half round platform 1 is clamped on lathe, and externally shuttle body 3 is processed; Upset part to be processed, be clamped on lathe by outer shuttle body 3, double round platform 1 is processed, and after completing other dimensional requirement, mills boss 7 until flat sidewall 1-2 is a plane.Finally at the center thread mill drilling 8 of the original boss 7 of flat sidewall 1-2, obtain finished product 10.
Above-mentioned is most preferred embodiment of the present invention, and the various change made by those of ordinary skill in the art or remodeling all can not depart from the scope of the present invention.
Claims (6)
1. the manufacturing technique of the outer shuttle of a sewing-machine rotating shuttle, comprise blank-making technology, turnning and milling technique, glossing and Technology for Heating Processing, it is characterized in that: described blank-making technology is made of one piece by blank (9) by metal injection molded, and on blank (9), be provided with boss (7), in turnning and milling technique, described blank (9) carrys out auxiliary clamping position by boss (7), at the final step of turnning and milling technique, the boss (7) on blank (9) is milled; Described blank (9) comprises outer shuttle body (3) and half round platform (1), outer shuttle body (3) comprises annular sidewall (3-2) and diapire (3-1), and half round platform (1) is positioned at the outer face place of diapire (3-1); The flat sidewall (1-2) that the sidewall of described half round platform (1) comprises semi arch sidewall (1-1) and connects with semi arch sidewall (1-1), the diapire (3-1) at flat sidewall (1-2) place has the half-lune holes (2) with the inner space of outer shuttle body (3); Described boss (7) is cylindrical circular bosses, and its axis is vertical with flat sidewall (1-2), and the top of boss (7) is arc surface (7-1); Half round platform (1) is in the cross section at the axis place of boss (7), and the top of boss (7) and the semi arch sidewall (1-1) of half round platform (1) are same circle.
2. the manufacturing technique of the outer shuttle of sewing-machine rotating shuttle according to claim 1, is characterized in that: described blank-making technology comprises mixing step, injecting step, defatting step and sintering step; In described injecting step, the metal dust of use is iron(-)base powder, and what formed after sintering step is described blank (9).
3. the manufacturing technique of the outer shuttle of sewing-machine rotating shuttle according to claim 2, it is characterized in that: the particle diameter of described iron(-)base powder is at 0.5 μm ~ 20 μm, after first metal solid powder and organic binder bond is evenly mixing, under the state of heating plasticizing, injection (mo(u)lding) machine to inject in mould and curing molding, take out from mould again, thus produce the first semi-finished product; Then carry out degreasing, the organic binder bond in the first semi-finished product is little by little discharged along the minim channel between particle, obtains the second semi-finished product; Finally the second semi-finished product are carried out sintering shrinkage, make product densification in order to the hole eliminated between powder particle, the furnace temperature of sintering is 1200 DEG C ~ 1300 DEG C, thus obtains blank (9).
4. the manufacturing technique of the outer shuttle of sewing-machine rotating shuttle according to claim 1, it is characterized in that: the described annular sidewall (3-2) of outer shuttle body (3) and the junction of diapire (3-1) have oblique angle breach (5), described oblique angle breach (5) and annular sidewall (3-2) are formed and hook line portion (4), and hook the end face of top higher than annular sidewall (3-2) in line portion (4); Described boss (7) is positioned on the sidewall of half round platform (1).
5. the manufacturing technique of the outer shuttle of sewing-machine rotating shuttle according to claim 4, it is characterized in that: the head in described hook line portion (4) is tack, and the root that oblique angle breach (5) is hooking line portion (4) also has small gap (6).
6. the manufacturing technique of the outer shuttle of sewing-machine rotating shuttle according to claim 1, it is characterized in that: in described turnning and milling technique, first by boss (7) and semi arch sidewall (1-1), half round platform (1) is clamped on lathe, and externally shuttle body (3) is processed; Upset part to be processed, outer shuttle body (3) is clamped on lathe, double round platform (1) is processed, and after completing other dimensional requirement, mills boss (7) until flat sidewall (1-2) is a plane; Finally at the center thread mill drilling (8) of the original boss (7) of flat sidewall (1-2), obtain finished product (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410173981.XA CN103952864B (en) | 2014-04-28 | 2014-04-28 | The manufacturing technique of the outer shuttle of sewing-machine rotating shuttle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410173981.XA CN103952864B (en) | 2014-04-28 | 2014-04-28 | The manufacturing technique of the outer shuttle of sewing-machine rotating shuttle |
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| CN103952864A CN103952864A (en) | 2014-07-30 |
| CN103952864B true CN103952864B (en) | 2015-09-30 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2017115214A (en) * | 2014-10-17 | 2018-11-19 | Кс Кольбеншмидт Гмбх | Piston manufacturing method |
| CN105312856B (en) * | 2015-11-20 | 2017-07-28 | 靖江市佳佳工程机械制造有限公司 | A kind of processing method of rotary shuttle race |
| CN106862571A (en) * | 2015-12-14 | 2017-06-20 | 浙江火科技股份有限公司 | A kind of manufacture method of rotating shuttle month circle |
| CN117047110A (en) * | 2020-06-19 | 2023-11-14 | 东阳市金鑫缝纫机配件厂 | Manufacturing method of sewing machine spare and accessory parts |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB779561A (en) * | 1954-08-18 | 1957-07-24 | Phoenix Nahmaschinen A G Baer | Improvements relating to sewing machines |
| CN1184174A (en) * | 1996-12-03 | 1998-06-10 | 源丰工业股份有限公司 | Forming method of semi-rotary shuttle for sewing machine |
| CN1847502A (en) * | 2005-04-11 | 2006-10-18 | 源丰精密科技股份有限公司 | Outer shuttle of sewing machine and its making process |
| CN102161150A (en) * | 2011-05-19 | 2011-08-24 | 宁波市鄞州勇耀缝制机械有限公司 | Manufacturing process of external shuttle of rotating shuttle |
| CN202185584U (en) * | 2011-06-24 | 2012-04-11 | 中山耀威粉末元件有限公司 | Outer shuttle blank of sewing machine and forming mold of outer shuttle blank |
-
2014
- 2014-04-28 CN CN201410173981.XA patent/CN103952864B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB779561A (en) * | 1954-08-18 | 1957-07-24 | Phoenix Nahmaschinen A G Baer | Improvements relating to sewing machines |
| CN1184174A (en) * | 1996-12-03 | 1998-06-10 | 源丰工业股份有限公司 | Forming method of semi-rotary shuttle for sewing machine |
| CN1847502A (en) * | 2005-04-11 | 2006-10-18 | 源丰精密科技股份有限公司 | Outer shuttle of sewing machine and its making process |
| CN102161150A (en) * | 2011-05-19 | 2011-08-24 | 宁波市鄞州勇耀缝制机械有限公司 | Manufacturing process of external shuttle of rotating shuttle |
| CN202185584U (en) * | 2011-06-24 | 2012-04-11 | 中山耀威粉末元件有限公司 | Outer shuttle blank of sewing machine and forming mold of outer shuttle blank |
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| CN103952864A (en) | 2014-07-30 |
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Denomination of invention: The manufacturing process of the outer shuttle of the sewing machine rotary shuttle Effective date of registration: 20231124 Granted publication date: 20150930 Pledgee: Ningbo Yinzhou Rural Commercial Bank Co.,Ltd. Yunlong sub branch Pledgor: NINGBO YINZHOU YONGYAO SEWING MACHINERY Co.,Ltd. Registration number: Y2023330002785 |