CN202968986U - Sewing machine bobbin case blank - Google Patents
Sewing machine bobbin case blank Download PDFInfo
- Publication number
- CN202968986U CN202968986U CN 201320002891 CN201320002891U CN202968986U CN 202968986 U CN202968986 U CN 202968986U CN 201320002891 CN201320002891 CN 201320002891 CN 201320002891 U CN201320002891 U CN 201320002891U CN 202968986 U CN202968986 U CN 202968986U
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- China
- Prior art keywords
- cylindrical body
- bobbin case
- sewing machine
- blank
- case blank
- 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 discloses a sewing machine bobbin case blank which comprises a cylindrical body. An opening is formed at the upper end of the cylinder body. A cylindrical core is provided with an opening at the upper end and arranged vertically in the center of the plat surface of an inner cavity of the cylindrical body. The upper end of the core is lower than the upper end of the cylindrical body. The bottom face of the cylindrical body is a flat surface. The bottom face of the cylindrical body is connected with the outer cylinder wall of the cylindrical body in a circular arc transition mode. The sewing machine bobbin case blank can be punch formed through a cold heading, solve the problems that a bobbin case blank in the prior art is course, large in production labor consumption, and long in processing time, improve accuracy of the bobbin case, lower rejection rate during processing period of the bobbin case, and achieve the purpose of producing a better bobbin case with less labor and less time.
Description
Technical field
The utility model relates to bobbin case of sewing machine.
Background technology
Along with socioeconomic development, the update of Sewing machines, from manual production to now automated production, the consumption of Sewing machines accessory bobbin case also grows with each passing day, although the production technology of bobbin case is in continuous improvement.
Be the integral planar structure bottom bobbin case blank originally, fuse is also solid, and subsequent machining technology is complicated, and dimensional accuracy also is difficult to guarantee.
The utility model content
Technical problem to be solved in the utility model just is to provide a kind of bobbin case of sewing machine, is convenient to processing, reduces the scrappage that bobbin case is produced, and shortens the precision that the bobbin case blank is worked into the time of finished product and improves the bobbin case product.
For solving the problems of the technologies described above, the utility model adopts following technical scheme: a kind of bobbin case of sewing machine blank, the cylindrical body that comprises upper end open, it is characterized in that: described cylindrical body inner chamber baseplane central vertical arranges the tubular fuse of a upper end open, described fuse upper end is lower than the cylindrical body upper end, described cylindrical body bottom surface is a plane, is connected for arc transition between described cylindrical body bottom surface and cylindrical body outer tube wall.
Preferably, the external diameter of described cylindrical body is 23.6mm, and internal diameter is 21.4mm, and the external diameter of described fuse is 5.8mm, and internal diameter is 4.4mm.
Preferably, described arc transition junction radius is 6mm.
Preferably, described fuse upper end is lower than cylindrical body upper end 1mm.
The utility model is connected being designed to arc transition between cylindrical body bottom surface and cylindrical body outer tube wall, simultaneously fuse is designed to hollow-core construction, the bobbin case blank can be by the cold-heading punch forming like this, solved original bobbin case blank product coarse, produce the manpower consumption large, the problem of long processing time, and improved the precision of bobbin case, reduce the scrappage during bobbin case is processed, reached the purpose of making better bobbin case with people still less the shorter time.
Description of drawings
Below in conjunction with the drawings and specific embodiments, the utility model is further described:
Fig. 1 is the utility model cutaway view;
Fig. 2 is the utility model top view.
The specific embodiment
Illustrate the embodiment of bobbin case of sewing machine blank below in conjunction with Fig. 1 to Fig. 2, it comprises the cylindrical body 1 of upper end open, described cylindrical body inner chamber baseplane central vertical arranges the tubular fuse 2 of a upper end open, described fuse upper end is lower than the cylindrical body upper end, described cylindrical body bottom surface 10 is a plane, and described cylindrical body bottom surface 10 is connected 11 with 12 of cylindrical body outer tube walls for arc transition.
The external diameter of described cylindrical body is 23.6mm, and internal diameter is 21.4mm, and the external diameter of described fuse is 5.8mm, and internal diameter is 4.4mm.Described arc transition junction radius is 6mm.Described fuse upper end is lower than cylindrical body upper end 1mm.
Claims (4)
1. bobbin case of sewing machine blank, the cylindrical body that comprises upper end open, it is characterized in that: described cylindrical body inner chamber baseplane central vertical arranges the tubular fuse of a upper end open, described fuse upper end is lower than the cylindrical body upper end, described cylindrical body bottom surface is a plane, is connected for arc transition between described cylindrical body bottom surface and cylindrical body outer tube wall.
2. bobbin case of sewing machine blank according to claim 1, it is characterized in that: the external diameter of described cylindrical body is 23.6mm, and internal diameter is 21.4mm, and the external diameter of described fuse is 5.8mm, and internal diameter is 4.4mm.
3. bobbin case of sewing machine blank according to claim 2 is characterized in that: described arc transition junction radius is 6mm.
4. bobbin case of sewing machine blank according to claim 3 is characterized in that: described fuse upper end is lower than cylindrical body upper end 1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320002891 CN202968986U (en) | 2013-01-04 | 2013-01-04 | Sewing machine bobbin case blank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320002891 CN202968986U (en) | 2013-01-04 | 2013-01-04 | Sewing machine bobbin case blank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202968986U true CN202968986U (en) | 2013-06-05 |
Family
ID=48510084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320002891 Expired - Fee Related CN202968986U (en) | 2013-01-04 | 2013-01-04 | Sewing machine bobbin case blank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202968986U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103074742A (en) * | 2013-01-04 | 2013-05-01 | 浙江大发灯具有限公司 | Bobbin case blank of sewing machine |
| CN108044313A (en) * | 2017-12-11 | 2018-05-18 | 广元市骏达机械制造有限公司 | A kind of bobbin case integrated production method |
-
2013
- 2013-01-04 CN CN 201320002891 patent/CN202968986U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103074742A (en) * | 2013-01-04 | 2013-05-01 | 浙江大发灯具有限公司 | Bobbin case blank of sewing machine |
| CN108044313A (en) * | 2017-12-11 | 2018-05-18 | 广元市骏达机械制造有限公司 | A kind of bobbin case integrated production method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20140104 |