CN2132757Y - Take-up lever with circumferential slot nesting - Google Patents
Take-up lever with circumferential slot nesting Download PDFInfo
- Publication number
- CN2132757Y CN2132757Y CN 92231568 CN92231568U CN2132757Y CN 2132757 Y CN2132757 Y CN 2132757Y CN 92231568 CN92231568 CN 92231568 CN 92231568 U CN92231568 U CN 92231568U CN 2132757 Y CN2132757 Y CN 2132757Y
- Authority
- CN
- China
- Prior art keywords
- shaft sleeve
- bottom bracket
- take
- tension lever
- large shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model belongs to a component part of the industrial sewing machine, and is particularly suitable for the high speed parallel sewing machine. The component part plays a role of taking up thread through a crank link mechanism, with the highest speed of 5500 times per minute. The component part is the assembly composed of rivets (1), a thread take-up tension lever (2), middle shaft sleeves (3), a large shaft sleeve (4) and an oil hole (5). The utility model is characterized in that the intermediate section and ends of the L-shaped thread take-up tension lever are provided with middle shaft sleeves (3), and the oil hole (5) is communicated with the middle shaft sleeves with a certain angle. The middle parts of the cylindrical middle shaft sleeve (3) and the large shaft sleeve (4) are provided with a strip of circular slot (6), and the part which is tangential to the circular slot is provided with a flat horizontal surface (7).
Description
The utility model belongs to the parts on the industrial sewing machine, is applicable to high speed parallel sewing machine.It is to play the take-up effect by toggle, about 5500 times of maximum speed per minute.
Before the utility model came out, known steel part thread take-up tension lever density was bigger, and wrought aluminium spare thread take-up tension lever cover is a right cylindrical, adopted cold-press process, often was easy to axial play, and they have all limited the development to high speed.
The purpose of this utility model is to make the axle sleeve of thread take-up tension lever be pressed into difficult afterwards becoming flexible, and being fit to the high quick-action of industrial sewing machine changes, and light weight, and density is less, is easy to machined again, the service life of raising parts.
For achieving the above object, the utility model is design like this, and axle sleeve is designed to one or several band circumferential groove, and its circumference place is provided with one or several tangent planes, to prevent axial rotation.It is nested that nested technology is used hot-cast instead by the former mode of colding pressing.
The utility model is formed an assembly by rivet (1), the take-up body of rod (2), bottom bracket axle (3), large shaft sleeve (4), oilhole (5), it is characterized in that being the take-up body of rod of L type, one end is provided with rivet (1), the other end is provided with large shaft sleeve (4), located therein section position of bottom bracket axle (3), oilhole (5) are certain angle and communicate with bottom bracket axle (3); The middle part of cylindrical bottom bracket axle (3), large shaft sleeve (4) is provided with a circumferential groove (6), is provided with a flat horizontal surface (7) with the tangent place of circumferential groove, and this design just is placed in the concave station of same size as the braking faced washer, plays the effect that system is changeed.Therefore circumferential groove axially is to be difficult for becoming flexible just as the screw-threaded engagement on the screw rod.Add the axle sleeve hot-cast again and embed, just more seemed reliably.
Several flat horizontal surfaces at several circumferential grooves and tangent place can be established in the middle part of cylindrical bottom bracket axle (3), large shaft sleeve (4).Intrinsic oilhole is to make before heat treatment, is pressed into then, and the oilhole difference position of the bottom bracket axle and the take-up body of rod is bigger, has influenced the circulation of lubricating oil.For this reason, we adopt electric spark punching after the die casting, have guaranteed the precision of oilhole like this, make to refuel just to its position.
The utility model major advantage is simple in structure, is easy to processing, is fit to the developing direction of high speed parallel sewing machine, and certain popularizing value is arranged.
Now further be summarized as follows in conjunction with the accompanying drawings:
Accompanying drawing 1 is a structure chart of the present utility model, and its main body is the L-shaped body of rod, and shown (1) is a rivet, and (2) are the take-up body of rod, and (3) are bottom bracket axle, and (4) are large shaft sleeve, and (5) are oilhole.Also having made A-A among the figure analyses and observe.
Accompanying drawing 2 is A-A revolved sectional views.The installation feature that has shown bottom bracket axle (3), large shaft sleeve (4).
Accompanying drawing 3 is architectural features of bottom bracket axle (3), large shaft sleeve (4), and shown (6) are circumferential grooves, (7) flat horizontal surface.Also having made B-B among the figure analyses and observe.
Accompanying drawing 4 is B-B cutaway views, and its structure is just more obvious.
During installation bottom bracket axle (3), the hot-cast of large shaft sleeve (4) difference are embedded the take-up body of rod and get final product.
Claims (3)
1, the nested thread take-up tension lever of band circumferential groove is formed an assembly by rivet (1), the take-up body of rod (2), bottom bracket axle (3), large shaft sleeve (4), oilhole (5), it is characterized in that L-shaped thread take-up tension lever one end is provided with rivet (1), the other end is provided with large shaft sleeve (4), located therein section position of bottom bracket axle (3), oilhole (5) is certain angle and communicates with bottom bracket axle (3), the middle part of cylindrical bottom bracket axle (3), large shaft sleeve (4) is provided with a circumferential groove (6), is provided with a flat horizontal surface (7) with the tangent place of circumferential groove.
2, the nested thread take-up tension lever of band circumferential groove according to claim 1 is characterized in that several flat horizontal surfaces that the middle part of cylindrical bottom bracket axle (3), large shaft sleeve (4) can be established several circumferential grooves and will be located mutually.
3, the nested thread take-up tension lever of band circumferential groove according to claim 1 is characterized in that oilhole (5) adopts the electric spark punching.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92231568 CN2132757Y (en) | 1992-08-25 | 1992-08-25 | Take-up lever with circumferential slot nesting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92231568 CN2132757Y (en) | 1992-08-25 | 1992-08-25 | Take-up lever with circumferential slot nesting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2132757Y true CN2132757Y (en) | 1993-05-12 |
Family
ID=33774391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92231568 Expired - Fee Related CN2132757Y (en) | 1992-08-25 | 1992-08-25 | Take-up lever with circumferential slot nesting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2132757Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1094534C (en) * | 1998-04-08 | 2002-11-20 | 周鹤鸣 | Four lever take-up mechanism for sewing machine |
| CN103820950A (en) * | 2014-03-04 | 2014-05-28 | 台州拓卡奔马机电科技有限公司 | Thread take-up rod mechanism of bar tacking machine and button sewing machine |
| CN104729588A (en) * | 2015-04-07 | 2015-06-24 | 江苏万工科技集团有限公司 | Take-up-lever on line vibration and bending measurement device |
-
1992
- 1992-08-25 CN CN 92231568 patent/CN2132757Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1094534C (en) * | 1998-04-08 | 2002-11-20 | 周鹤鸣 | Four lever take-up mechanism for sewing machine |
| CN103820950A (en) * | 2014-03-04 | 2014-05-28 | 台州拓卡奔马机电科技有限公司 | Thread take-up rod mechanism of bar tacking machine and button sewing machine |
| CN104729588A (en) * | 2015-04-07 | 2015-06-24 | 江苏万工科技集团有限公司 | Take-up-lever on line vibration and bending measurement device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |