CN204251844U - A kind of sewing-machine foot thread cutting mechanism - Google Patents
A kind of sewing-machine foot thread cutting mechanism Download PDFInfo
- Publication number
- CN204251844U CN204251844U CN201420651295.4U CN201420651295U CN204251844U CN 204251844 U CN204251844 U CN 204251844U CN 201420651295 U CN201420651295 U CN 201420651295U CN 204251844 U CN204251844 U CN 204251844U
- Authority
- CN
- China
- Prior art keywords
- rotating shaft
- sewing
- thread
- cutting blade
- presser feet
- 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
Links
- 238000009958 sewing Methods 0.000 claims abstract description 24
- 238000009966 trimming Methods 0.000 claims abstract description 13
- 238000013138 pruning Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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- Sewing Machines And Sewing (AREA)
Abstract
The utility model relates to a kind of sewing-machine foot thread cutting mechanism, comprise workbench, sewing machine head and presser feet, it is characterized in that: described presser feet comprises depression bar and pressing plate, described pressing plate has the trimming groove parallel with flat station surface, in trimming groove, thread trimmer is installed, described thread trimmer comprises cutter stator and cutting blade, cutter stator to be positioned at below cutting blade and to be fixed on trimming groove, the position of the sewing stitch of the front portion correspondence of cutter stator is provided with the edge of a knife, described depression bar inside is provided with axis hole, have that rotating shaft is accommodating is axis hole, rotating shaft extends up through the holddown spring above presser feet and passes from pressure cap top, the top of rotating shaft is flexibly connected with a transverse link, the other end of transverse link is flexibly connected with the output of drive unit, the rear end of rotating shaft lower end and cutting blade is connected, after the utility model makes to sew, web surface does not stay the end of a thread, and overlapping stitch and the end of a thread do not appear in the charge level table below that ensures to sew, and have rational in infrastructure, easy to use, effective feature.
Description
Technical field
The present invention relates to sewing machine technique, specifically a kind of sewing-machine foot thread cutting mechanism.
Background technology
The cloth that Sewing machines can be sewed after terminating once sewing leaves one section of the end of a thread and overlapping stitch, a ready-made clothes needs sewing many times just can complete, therefore ready-made clothes completes sewing rear surface and can leave a lot of the end of a thread and overlapping stitch, these the end of a thread can in the later stage by manually pruning, double line then cannot be pruned, and therefore the clothes of some top grades occur that overlapping stitch will treat as substandard products process; Even and the end of a thread, because the end of a thread manually can not be pruned too much one by one, general only to prune longer the end of a thread, although remaining the end of a thread non-length, the end of a thread causes ready-made clothes surface unsightly too much; Very low additionally by artificial the end of a thread efficiency of pruning, and in the surging condition of current manual's expense, add cost undoubtedly, the cost performance of the product of reduction.
Summary of the invention
The object of the present invention is to provide a kind of sewing-machine foot thread cutting mechanism, automatic shearing mechanism can be triggered to cut off at web surface excessive thread ends at the end of each sewing, after making to sew, web surface does not stay the end of a thread, there is not overlapping stitch and the end of a thread in guarantee charge level table below of sewing, the present invention has rational in infrastructure, easy to use, effective feature.
For achieving the above object by the following technical solutions:
A kind of sewing-machine foot thread cutting mechanism, comprise workbench, sewing machine head and presser feet, it is characterized in that: described presser feet comprises depression bar and pressing plate, described pressing plate has the trimming groove parallel with flat station surface, in trimming groove, thread trimmer is installed, described thread trimmer comprises cutter stator and cutting blade, cutter stator to be positioned at below cutting blade and to be fixed on trimming groove, the position of the sewing stitch of the front portion correspondence of cutter stator is provided with the edge of a knife, described depression bar inside is provided with axis hole, have that rotating shaft is accommodating is axis hole, rotating shaft extends up through the holddown spring above presser feet and passes from pressure cap top, the top of rotating shaft is flexibly connected with a transverse link, the other end of transverse link is flexibly connected with the output of drive unit, the rear end of rotating shaft lower end and cutting blade is connected, drive unit can use rotating shaft left and right reciprocating rotation by transverse link, the front portion of described cutting blade swings along with rotating shaft above the cutter stator edge of a knife.
Described drive unit is fixed on sidepiece or the top of sewing machine head, and described drive unit is linear actuator.
The present invention is provided with thread trimmer in presser feet bottom platen, the cutting blade of thread trimmer carrys out driving shaft by drive unit by connecting rod and to turn left right reciprocating rotation, the axle right reciprocating rotation that turns left drives cutting blade to coordinate with cutter stator and realize quick unnecessary cutting off thread end, the end of a thread is not stayed not overlap stitch after ensureing each sewing, thus ensure that each sewing stitch is attractive in appearance, save the artificial pruning work of postorder, greatly can promote the quality of operating efficiency and ready-made clothes.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention;
Fig. 2 is the structural representation of foot device of the present invention;
Fig. 3 is the structural representation of thread trimmer original state of the present invention;
Fig. 4 is the structural representation of thread trimmer shearing condition of the present invention.
Detailed description of the invention
As Figure 1-4, a kind of sewing-machine foot thread cutting mechanism, comprise workbench 1, sewing machine head 2 and presser feet 3, described presser feet 3 comprises depression bar 31 and pressing plate 32, described pressing plate 32 has the trimming groove 33 parallel with flat station surface, thread trimmer 34 is installed in trimming groove 33, described thread trimmer 34 comprises cutter stator 35 and cutting blade 36, cutter stator 35 to be positioned at below cutting blade 36 and to be fixed on trimming groove 33, the position of the sewing stitch of the front portion correspondence of cutter stator 35 is provided with the edge of a knife 37, described depression bar 31 inside is provided with axis hole, have that rotating shaft 4 is accommodating is axis hole, rotating shaft 4 extends up through the holddown spring 7 above presser feet 3 and passes from pressure cap 8 top, the top of rotating shaft 4 is flexibly connected with a transverse link 5, the other end of transverse link 5 is flexibly connected with the output of drive unit 6, drive unit 6 can use rotating shaft about 4 reciprocating rotation by transverse link 5, described drive unit 6 is fixed on sidepiece or the top of sewing machine head 1, and described drive unit is linear actuator, the front portion of described cutting blade 36 swings along with rotating shaft above the cutter stator edge of a knife 37.
When the present invention uses, linear actuator is connected with the controller of Sewing machines, at the end of each sewing, controller can work by triggering linear actuator 6 automatically, linear actuator 6 promotes transverse link 5 to a lateral movement, transverse link 5 makes rotating shaft 4 produce rotation, thus drive cutting blade 36 to rotate and cut off by the end of a thread, because thread trimmer 34 is close to workbench 1 surface, thread trimmer 34 shears rear web surface would not leave the end of a thread, also avoids occurring overlapping stitch simultaneously; Linear actuator is arranged on Sewing machines top by the present invention, rotating shaft 4 is connected through pressure cap 8, holddown spring 7 and depression bar 31 and cutting blade 36 in trimming groove 33, and drive cutting blade 36 to cut off the end of a thread, after making to sew, web surface does not stay the end of a thread, there is not overlapping stitch and the end of a thread in guarantee charge level table below of sewing, have rational in infrastructure, easy to use, effective feature.
Claims (2)
1. a sewing-machine foot thread cutting mechanism, comprise workbench, sewing machine head and presser feet, it is characterized in that: described presser feet comprises depression bar and pressing plate, described pressing plate has the trimming groove parallel with flat station surface, in trimming groove, thread trimmer is installed, described thread trimmer comprises cutter stator and cutting blade, cutter stator to be positioned at below cutting blade and to be fixed on trimming groove, the position of the sewing stitch of the front portion correspondence of cutter stator is provided with the edge of a knife, described depression bar inside is provided with axis hole, have that rotating shaft is accommodating is axis hole, rotating shaft extends up through the holddown spring above presser feet and passes from pressure cap top, the top of rotating shaft is flexibly connected with a transverse link, the other end of transverse link is flexibly connected with the output of drive unit, the rear end of rotating shaft lower end and cutting blade is connected, drive unit can use rotating shaft left and right reciprocating rotation by transverse link, the front portion of described cutting blade swings along with rotating shaft above the cutter stator edge of a knife.
2. a kind of sewing-machine foot thread cutting mechanism as claimed in claim 1, it is characterized in that: described drive unit is fixed on sidepiece or the top of sewing machine head, described drive unit is linear actuator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420651295.4U CN204251844U (en) | 2014-11-04 | 2014-11-04 | A kind of sewing-machine foot thread cutting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420651295.4U CN204251844U (en) | 2014-11-04 | 2014-11-04 | A kind of sewing-machine foot thread cutting mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204251844U true CN204251844U (en) | 2015-04-08 |
Family
ID=52956169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420651295.4U Expired - Fee Related CN204251844U (en) | 2014-11-04 | 2014-11-04 | A kind of sewing-machine foot thread cutting mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204251844U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108486782A (en) * | 2018-05-25 | 2018-09-04 | 吴江市新科缝制设备有限公司 | A kind of use in sewing machine the end of a thread Scissoring device |
-
2014
- 2014-11-04 CN CN201420651295.4U patent/CN204251844U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108486782A (en) * | 2018-05-25 | 2018-09-04 | 吴江市新科缝制设备有限公司 | A kind of use in sewing machine the end of a thread Scissoring device |
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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: 20150408 Termination date: 20191104 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |