CN204608359U - A kind of use in sewing machine moving knife and Sewing machines - Google Patents
A kind of use in sewing machine moving knife and Sewing machines Download PDFInfo
- Publication number
- CN204608359U CN204608359U CN201520176804.7U CN201520176804U CN204608359U CN 204608359 U CN204608359 U CN 204608359U CN 201520176804 U CN201520176804 U CN 201520176804U CN 204608359 U CN204608359 U CN 204608359U
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- CN
- China
- Prior art keywords
- moving knife
- line
- hook portion
- upper thread
- sewing machine
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- Expired - Fee Related
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Abstract
The utility model relates to a kind of use in sewing machine moving knife and Sewing machines, moving knife comprises moving knife body, the cutter portion be formed on the upper surface of described moving knife body, be formed in bottom line hook portion on the side adjacent with described upper surface of described moving knife body and upper thread hook portion, the first line is formed centrally in the center of described bottom line hook portion and described cutter portion, be formed centrally the second line in the center of described upper thread hook portion and described cutter portion, the angle of the first described line and the second described line is more than or equal to 5 °.The utility model passes through the angle of control first line and the second line, makes the distance of bottom line and upper thread become large, when upper thread is drawn out, bottom line can not be driven to be drawn out together, thus do not affect sewing next time, increase work efficiency.
Description
Technical field
the utility model belongs to sewing machine technique field, is specifically related to a kind of use in sewing machine moving knife and Sewing machines.
Background technology
at present, the thread shearing cutter of two-needle sewing machine is mostly made up of (as shown in Figures 1 to 3) moving knife and stationary knife 2, the blade of stationary knife 2 is fixed on needle plate down, the blade of moving knife is fixed on the upside of rotating shuttle frame upward, stationary knife 2 and moving knife form scissor thread shearing cutter, moving knife are formed with the upper thread hook portion 1-b for hooking the upper thread 7 and bottom line hook portion 1-a for hooking bottom line 8.During use, upper thread 7 and bottom line 8 are hooked by upper thread hook portion 1-b and bottom line hook portion 1-a respectively, and during trimming, moving knife cutter portion 1-d and stationary knife 2 coordinate to be cut off upper thread 7 and bottom line 8 simultaneously, and then bottom line 8 and upper thread 7 are clamped by thread tension disc 3.But, due to the center of current bottom line hook portion 1-a, the center of upper thread hook portion 1-b and cutter portion 1-d center substantially on the same line, it is very near that the bottom line 8 causing thread tension disc 3 to be clamped and upper thread 7 lean on, when sewing fabric is taken out from Sewing machines, because upper thread 7 is by sewing fabric, therefore, upper thread 7 can pull out from thread tension disc 3 along with the taking-up of sewing fabric, due to bottom line 8 and upper thread 7 lean on very near, while upper thread 7 is drawn out, bottom line 8 can be pulled out by from thread tension disc 3, thus the problem of bottom line 8 with not coming up when causing sewing next product.
Utility model content
technical problem to be solved in the utility model is to provide a kind of use in sewing machine moving knife can not taking bottom line when upper thread is drawn out out of.
another technical problem to be solved in the utility model is to provide a kind of Sewing machines adopting above-mentioned moving knife.
for solving above technical problem, the utility model takes following technical scheme:
a kind of use in sewing machine moving knife, comprise moving knife body, the cutter portion be formed on the upper surface of described moving knife body, be formed in bottom line hook portion on the side adjacent with described upper surface of described moving knife body and upper thread hook portion, the first line is formed centrally in the center of described bottom line hook portion and described cutter portion, be formed centrally the second line in the center of described upper thread hook portion and described cutter portion, the angle of the first described line and the second described line is more than or equal to 5 °.
particularly, the angle of the first described line and the second described line is 5 ° ~ 20 °.
particularly, the bottom surface of described bottom line hook portion and the bottom surface of described upper thread hook portion are all in circular arc.
particularly, described cutter portion is circular port.
particularly, described moving knife also comprise be formed in described moving knife body lower surface on be convenient to extract the recess of upper thread out.
more specifically, the angle between the leading flank of described recess and the bottom surface of described recess is more than or equal to 5 °.
more specifically, the angle between the leading flank of described recess and the bottom surface of described recess is 5 ° ~ 20 °.
more specifically, described upper thread hook portion is positioned at the front side portion of described recess.
more specifically, the intersecting lens of the leading flank of described recess and the bottom surface of described recess is from the lopsidedness of described upper thread hook portion place side direction forward direction away from described upper thread hook portion.
more specifically, the intersecting lens of the leading flank of described recess and the bottom surface of described recess and the angle of the second described line are 40 ° ~ 50 °.
a kind of Sewing machines, comprises above-mentioned use in sewing machine moving knife.
particularly, described Sewing machines also comprises the top that is positioned at described moving knife and coordinates with the cutter portion of described moving knife the stationary knife cutting off upper thread and bottom line, the below being positioned at described moving knife for pushing down the thread tension disc of bottom line.
due to the enforcement of above technical scheme, the utility model compared with prior art tool has the following advantages:
the utility model passes through the angle of control first line and the second line, makes the distance of bottom line and upper thread become large, when upper thread is drawn out, bottom line can not be driven to be drawn out together, thus do not affect sewing next time, increase work efficiency.
Accompanying drawing explanation
accompanying drawing 1 is the front view of prior art;
accompanying drawing 2 is the top view of prior art;
accompanying drawing 3 is the cooperation schematic diagram of thread tension disc and moving knife in prior art;
accompanying drawing 4 is top view of the present utility model;
accompanying drawing 5 is side view of the present utility model;
accompanying drawing 6 is bottom view of the present utility model;
wherein: 1, moving knife body; 2, stationary knife; 3, thread tension disc; 7, upper thread; 8, bottom line; 1-a, bottom line hook portion; The center of 1-a-s, bottom line hook portion; 1-b, upper thread hook portion; The center of 1-b-s, upper thread hook portion; 1-c, recess; The intersecting lens of the leading flank of 1-c-1, recess and the bottom surface of recess; 1-d, cutter portion; The center in 1-d-s, cutter portion; 9-a, the first line; 9-b, the second line.
Detailed description of the invention
below in conjunction with specific embodiment, the utility model is described in more detail, but the utility model is not limited to following examples.
a kind of Sewing machines, comprising moving knife, is positioned at the stationary knife 2 of the top of moving knife, being positioned at the below of moving knife for pushing down the thread tension disc 3 of bottom line 8.
moving knife comprises moving knife body 1, be formed in the cutter portion 1-d on the upper surface of moving knife body 1, to be formed on the side adjacent with upper surface of moving knife body 1 bottom line hook portion 1-a and the upper thread hook portion 1-b of the right flank of moving knife body 1 (i.e. on), cutter portion 1-d is positioned at the front of bottom line hook portion 1-a, upper thread hook portion 1-b is positioned at the rear of bottom line hook portion 1-a, upper thread 7 and bottom line 8 respectively hook are located at the upper surface that on upper thread hook portion 1-b and bottom line hook portion 1-a and one end is positioned at moving knife body 1, the other end is positioned at the lower surface of moving knife body 1, be positioned at the upper thread 7 of moving knife body 1 upper surface and bottom line 8 to be cut off under the cooperation of cutter portion 1-d and stationary knife 2, the bottom line 8 being positioned at moving knife body 1 lower surface is clamped by thread tension disc 3.
in order to when preventing from extracting upper thread 7 out, bottom line 8 is pulled out together, the center 1-a-s of bottom line hook portion 1-a and the center 1-d-s of cutter portion 1-d forms the first line 9-a, the center 1-b-s of upper thread hook portion 1-b and the center 1-d-s of cutter portion 1-d forms the second line 9-b, and the angle α of the first line 9-a and the second line 9-b is more than or equal to 5 °.Preferably, the angle α of the first line 9-a and the second line 9-b is 5 ° ~ 20 °.
the conveniently extraction of upper thread 7, moving knife also comprise be formed in moving knife body 1 lower surface on be convenient to extract the recess 1-c of upper thread 7 out.Angle between the leading flank of recess 1-c and the bottom surface of recess 1-c is more than or equal to 5 °, is preferably 5 ° ~ 20 °.
upper thread hook portion 1-b is positioned at the front side portion of recess 1-c.The intersecting lens 1-c-1 of the leading flank of recess 1-c and the bottom surface of recess 1-c tilts from the side (namely the right side of automatic tool forward to the left) of upper thread hook portion 1-b place side direction forward direction away from upper thread hook portion 1-b.The intersecting lens 1-c-1 of the leading flank of recess 1-c and the bottom surface of recess 1-c and the angle β of the second line 9-b is 40 ° ~ 50 °.When making thread tension disc 3 coordinate with the lower surface of moving knife body 1 like this to push down bottom line 8, between the through hole that upper thread 7 can be formed at thread tension disc 3 and recess 1-c, convenient upper thread 7 to be extracted out.
in order to prevent bottom line 8 and upper thread 7 because of rubbing crack, the bottom surface of bottom line hook portion 1-a and the bottom surface of upper thread hook portion 1-b are all in circular arc, and the center 1-a-s of bottom line hook portion 1-a and the center 1-b-s of upper thread hook portion 1-b is the center of circle of place, bottom surface circle.
in the present embodiment, cutter portion 1-d is circular port, and Dao Bu 1-d center is the center of circle of circular port place circle.
above-mentioned all around go up the inferior noun of locality be all with the orientation of Fig. 4 do define.
above the utility model is described in detail; its object is to allow the personage being familiar with this art can understand content of the present utility model and be implemented; protection domain of the present utility model can not be limited with this; all equivalences done according to Spirit Essence of the present utility model change or modify, and all should be encompassed in protection domain of the present utility model.
Claims (10)
1. a use in sewing machine moving knife, comprise moving knife body (1), be formed in the cutter portion (1-d) on the upper surface of described moving knife body (1), be formed in the bottom line hook portion (1-a) on the side adjacent with described upper surface of described moving knife body (1) and upper thread hook portion (1-b), it is characterized in that: the center (1-a-s) of described bottom line hook portion (1-a) and the center (1-d-s) in described cutter portion (1-d) form the first line (9-a), the center (1-b-s) of described upper thread hook portion (1-b) and the center (1-d-s) in described cutter portion (1-d) form the second line (9-b), the angle of described the first line (9-a) and described the second line (9-b) is more than or equal to 5 °.
2. use in sewing machine moving knife according to claim 1, is characterized in that: the angle of described the first line (9-a) and described the second line (9-b) is 5 ° ~ 20 °.
3. use in sewing machine moving knife according to claim 1, is characterized in that: the bottom surface of described bottom line hook portion (1-a) and the bottom surface of described upper thread hook portion (1-b) are all in circular arc.
4. use in sewing machine moving knife according to claim 1, is characterized in that: described moving knife also comprise be formed in described moving knife body (1) lower surface on be convenient to extract out upper thread (7) recess (1-c).
5. use in sewing machine moving knife according to claim 4, is characterized in that: the angle between the leading flank of described recess (1-c) and the bottom surface of described recess (1-c) is more than or equal to 5 °.
6. use in sewing machine moving knife according to claim 5, is characterized in that: the angle between the leading flank of described recess (1-c) and the bottom surface of described recess (1-c) is 5 ° ~ 20 °.
7. the use in sewing machine moving knife according to claim 4 or 5, is characterized in that: the intersecting lens (1-c-1) of the leading flank of described recess (1-c) and the bottom surface of described recess (1-c) is from the lopsidedness of described upper thread hook portion (1-b) place side direction forward direction away from described upper thread hook portion (1-b).
8. the use in sewing machine moving knife according to claim 4 or 5, is characterized in that: the intersecting lens (1-c-1) of the leading flank of described recess (1-c) and the bottom surface of described recess (1-c) and the angle of described the second line (9-b) are 40 ° ~ 50 °.
9. a Sewing machines, is characterized in that: comprise the use in sewing machine moving knife according to any one of claim 1 to 8.
10. Sewing machines according to claim 9, is characterized in that: described Sewing machines also comprises the top that is positioned at described moving knife and coordinates with the cutter portion (1-d) of described moving knife the stationary knife (2) cutting off upper thread (7) and bottom line (8), the below being positioned at described moving knife for pushing down the thread tension disc (3) of bottom line (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520176804.7U CN204608359U (en) | 2015-03-27 | 2015-03-27 | A kind of use in sewing machine moving knife and Sewing machines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520176804.7U CN204608359U (en) | 2015-03-27 | 2015-03-27 | A kind of use in sewing machine moving knife and Sewing machines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204608359U true CN204608359U (en) | 2015-09-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520176804.7U Expired - Fee Related CN204608359U (en) | 2015-03-27 | 2015-03-27 | A kind of use in sewing machine moving knife and Sewing machines |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204608359U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104775240A (en) * | 2015-03-27 | 2015-07-15 | 苏州蓝鹰缝纫机科技有限公司 | Moving cutter for sewing machine and sewing machine |
| CN109234925A (en) * | 2018-11-14 | 2019-01-18 | 杰克缝纫机股份有限公司 | A kind of thread cutting mechanism and sewing machine |
-
2015
- 2015-03-27 CN CN201520176804.7U patent/CN204608359U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104775240A (en) * | 2015-03-27 | 2015-07-15 | 苏州蓝鹰缝纫机科技有限公司 | Moving cutter for sewing machine and sewing machine |
| CN104775240B (en) * | 2015-03-27 | 2017-06-16 | 苏州蓝鹰缝纫机科技有限公司 | A kind of use in sewing machine moving knife and sewing machine |
| CN109234925A (en) * | 2018-11-14 | 2019-01-18 | 杰克缝纫机股份有限公司 | A kind of thread cutting mechanism and sewing machine |
| CN109234925B (en) * | 2018-11-14 | 2021-03-12 | 杰克缝纫机股份有限公司 | Thread trimming mechanism and sewing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150902 Termination date: 20200327 |
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| CF01 | Termination of patent right due to non-payment of annual fee |