CN202945438U - Sewing machine thread trimmer with function of elastically positioning bottom thread ends - Google Patents
Sewing machine thread trimmer with function of elastically positioning bottom thread ends Download PDFInfo
- Publication number
- CN202945438U CN202945438U CN 201220601635 CN201220601635U CN202945438U CN 202945438 U CN202945438 U CN 202945438U CN 201220601635 CN201220601635 CN 201220601635 CN 201220601635 U CN201220601635 U CN 201220601635U CN 202945438 U CN202945438 U CN 202945438U
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- thread
- guide channel
- yarn guide
- bottom line
- trimmer
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Abstract
The utility model discloses a sewing machine thread trimmer with a function of elastically positioning bottom thread ends. The sewing machine thread trimmer with the function of elastically positioning the bottom thread ends comprises a movable knife body. One end of the movable knife body is provided with at least one mounting hole, and the other end of the movable knife body is provided with a thread trimming protrusion. Further, a thread-guide groove is placed on the movable knife body. A positioning groove used for positioning the bottom thread ends is placed at the tail end of the thread-guide groove, is communicated with the thread-guide groove, and is placed below the thread-guide groove. The opening end of the positioning groove and the thread-guide groove form a hook. The sewing machine thread trimmer with the function of elastically positioning the bottom thread ends is simple in structure, reasonable in design, strong in practicability, capable of effectively solving the positioning problem of the bottom thread ends of the sewing machine to ensure that the sewing machine can accurately find the bottom thread ends when sewing next time, and the off-thread phenomenon can be avoided, and the sewing machine thread trimmer with the function of elastically positioning the bottom thread ends has wide industrial use value.
Description
Technical field
The utility model relates to a kind of Sewing machines thread trimmer, more particularly, relates to a kind of Sewing machines thread trimmer with bottom line the end of a thread positioning function.
Background technology
generally be provided with an automatic thread trimming device on existing sewing machine needle board, this cutting facility is to be made of a dead knife and a movable blade, described movable blade can be moved away from direction near reaching to dead knife, this movable blade can catch on upper thread and bottom line, and by movable blade and staggered the working in coordination with of dead knife, line is cut off, yet, existing cutting facility is generally after cutting off bottom line, can't position bottom line the end of a thread, cause bottom line the end of a thread position uncertain, Sewing machines can't find bottom line the end of a thread next time accurately when sewing, the off-line phenomenon easily appears, cause the rework rate of product high, the qualification rate of finished product is low, operating efficiency is also very low simultaneously, cause cost of labor high, production cost is high, Business Economic Benefit is low.Therefore, industry is all by every possible means being improved this cutting facility, makes that the Sewing machines action is more smooth and easy, effect is better, thereby reduces costs, and develops scheme.Well known, make little by little little change by the front end of slight thread trimmer on Sewing machines, all must need the cost long time to go experiment experiment again, design is design again, so, even the little change a little of the thread trimmer of Sewing machines neither have the knack of that this operator can reach easily.
application number be 2011209297904.7 by name " a kind of trimming wire-clamping devices " but patent application document a kind of trimming wire-clamping device of clamping bottom line the end of a thread is disclosed, it discloses a kind of elasticity clamp body that is fixedly installed on needle plate, the front portion of rotating end by cutting blade is shaped with the line section of pushing away that matches with elasticity clamp body, match with cutter head when wire shear part the line cut-out of tension, the end of a thread of bottom line just is clamped and fixed in and rotates between end and elasticity clamp body, thereby realize the location to bottom line the end of a thread, yet adopt this structure not only to increase the parts of cutting facility, make complex structure, and be difficult to obtain the effect of desirable clamping bottom line the end of a thread, and easily occur there is no successful clamping, or top and bottom lines is held under the state that kinks, cause pulling out when making thing bottom line is together extracted.
This shows, above-mentioned existing cutting facility obviously still has inconvenience and defective, and demands urgently further being improved.The problem that exists in order to solve described trimming blade tangential method, relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly, but has no for a long time applicable design always, and this is obviously the problem that the anxious wish of relevant dealer solves.
The utility model content
The purpose of this utility model is to overcome defects of the prior art, a kind of Sewing machines thread trimmer with bottom line the end of a thread positioning function is provided, the utility model people is through constantly research, design, and through repetition test and after improving, the parts that need not to increase cutting facility are only made rational design on the movable blade body, realized bottom line the end of a thread positioning function, reasonable in design, technique is simple, can greatly improve the economic benefit of enterprise, improves the qualification rate of finished product.
For achieving the above object, the technical scheme that the utility model provides is as follows: a kind of Sewing machines thread trimmer with bottom line the end of a thread positioning function is provided, comprise the movable blade body, one end of described movable blade body is provided with an installing hole at least, the other end of this movable blade body is provided with the trimming projection, also be provided with a yarn guide channel on described movable blade body, this yarn guide channel tail end is provided with the locating slot for location bottom line the end of a thread, described locating slot is connected with yarn guide channel, the line that the yarn guide channel front end is provided with one "＜" type catches opening, and this line catches opening and is connected with yarn guide channel.
Described locating slot is arranged on the below of yarn guide channel, and the openend of this locating slot and yarn guide channel form a crotch.
Described movable blade body one end also is provided with a perforate, and this perforate and trimming bossing are overlapping, makes trimming projection one side form a trimming breach.
beneficial effect with Sewing machines thread trimmer of bottom line the end of a thread positioning function described in the utility model is: be provided with a yarn guide channel by the movable blade body, this yarn guide channel tail end is provided with the locating slot for location bottom line the end of a thread, described locating slot is connected with yarn guide channel, the line that the yarn guide channel front end also is provided with one "＜" type catches opening, during trimming, the movable blade body moves to the dead knife direction, motion along with the movable blade body, line seizure opening is caught upper thread and the bottom line receipts at pin hole place, bottom line enters in locating slot via yarn guide channel, interlocking by movable blade and dead knife makes protruding the matching with dead knife of trimming that upper thread and bottom line are cut off, this moment, the end of a thread of bottom line was still stayed in described locating slot, realized the location of bottom line the end of a thread, Sewing machines can accurately find bottom line the end of a thread next time when sewing, have reasonable in design, technique is simple, effectively avoided off-line, make product need not to do over again, improve the qualification rate of finished product.
By locating slot being arranged on the below of yarn guide channel, the openend of this locating slot and yarn guide channel form a crotch, guarantee that bottom line the end of a thread is positioned in locating slot, avoid bottom line to return in yarn guide channel and landing; Described movable blade body one end also is provided with a perforate in addition, this perforate and trimming bossing are overlapping, make trimming projection one side form a trimming breach, during trimming, bottom line and upper thread are cut off in this trimming indentation, there, and the chip that trimming produces landing from perforate, avoid chip to be accumulated on thread trimmer and impact is used, the cleaning that can keep thread trimmer, the service life of improving thread trimmer.
In sum, the utlity model has simple in structure, reasonable in design, practical, can effectively solve bottom line the end of a thread orientation problem of Sewing machines, Sewing machines can accurately find bottom line the end of a thread next time when sewing, the off-line phenomenon can not occur, makes that Sewing machines action is more smooth and easy, effect is better, the qualification rate of finished product is high, Business Economic Benefit is high, thereby more is suitable for practicality, has the extensive value of industry.
Below in conjunction with drawings and Examples, the Sewing machines thread trimmer with bottom line the end of a thread positioning function described in the utility model is described further.
Description of drawings
Fig. 1 is the structural representation with Sewing machines thread trimmer of bottom line the end of a thread positioning function described in the utility model;
Fig. 2 is the A place enlarged drawing of Fig. 1.
The specific embodiment
Below the preferred example with Sewing machines thread trimmer of bottom line the end of a thread positioning function described in the utility model, therefore do not limit protection domain of the present utility model.
with reference to Fig. 1, Fig. 2, a kind of Sewing machines thread trimmer with bottom line the end of a thread positioning function is provided, comprise movable blade body 1, one end of described movable blade body 1 is provided with an installing hole 2 at least, the other end of this movable blade body 1 is provided with trimming projection 3, also be provided with a yarn guide channel 4 on described movable blade body 1, this yarn guide channel 4 is positioned at same end with trimming projection 3, described yarn guide channel 4 tail ends are provided with the locating slot 5 for location bottom line the end of a thread, this locating slot 5 is connected with yarn guide channel 4, during trimming, movable blade body 1 is to moving near the dead knife direction, bottom line enters in locating slot 5 via yarn guide channel 4 and positions, when sewing, Sewing machines can accurately find bottom line the end of a thread.
Described locating slot 5 is arranged on the below of yarn guide channel 4, and the openend of this locating slot 5 and yarn guide channel 4 forms crotches 7, when bottom line the end of a thread is positioned at locating slot 5 when interior, owing to being subject to stopping of crotch 7, bottom line the end of a thread can not slip in yarn guide channel 4, even landing, the location is reliable, and is reasonable in design.
The line that described yarn guide channel 4 front ends are provided with one "＜" type catches opening 6, and described yarn guide channel 4 catches opening 6 with this line and is connected, and during the assurance trimming, movable blade body 1 can be received the upper thread at pin hole place and bottom line together and catch, and bottom line is positioned in locating slot.
described movable blade body 1 one ends also are provided with a perforate 8, this perforate 8 overlaps with trimming projection 3, make trimming projection 3 form a trimming breach 8 near a side of yarn guide channel 4, during trimming, movable blade body 1 is to drawing close near the dead knife direction, thereby make movable blade body 1 and dead knife staggered, match with dead knife by trimming projection 3 line is cut off in trimming breach 9, this moment, the end of a thread of bottom line was still stayed in described locating slot, and line chip landing from perforate 8 that trimming produces, have reasonable in design, technique is simple, effectively avoided off-line, stitched products need not to do over again, improve the qualification rate of finished product, improve the advantage in the service life of thread trimmer.
Above-described embodiment is the better embodiment of the utility model; but embodiment of the present utility model is not restricted to the described embodiments; other any do not deviate from change, the modification done under Spirit Essence of the present utility model and principle, substitutes, combination, simplify; all should be the substitute mode of equivalence, within being included in protection domain of the present utility model.
Claims (4)
1. Sewing machines thread trimmer with bottom line the end of a thread positioning function, comprise movable blade body (1), one end of described movable blade body (1) is provided with an installing hole (2) at least, the other end of this movable blade body (1) is provided with trimming projection (3), it is characterized in that, also be provided with a yarn guide channel (4) on described movable blade body (1), this yarn guide channel (4) tail end is provided with the locating slot (5) for location bottom line the end of a thread, and this locating slot (5) is connected with yarn guide channel (4).
2. the Sewing machines thread trimmer with bottom line the end of a thread positioning function according to claim 1, is characterized in that, described locating slot (5) is arranged on the below of yarn guide channel (4), and the openend of this locating slot (5) and yarn guide channel (4) form a crotch (7).
3. the Sewing machines thread trimmer with bottom line the end of a thread positioning function according to claim 1, it is characterized in that, described yarn guide channel (4) front end is provided with line and catches opening (6), and it is "＜" type that this line catches opening (6), and described yarn guide channel (4) catches opening (6) with line and is connected.
4. the Sewing machines thread trimmer with bottom line the end of a thread positioning function according to claim 1, it is characterized in that, described movable blade body (1) one end also is provided with a perforate (8), this perforate (8) overlaps with trimming projection (3), makes trimming projection (3) form a trimming breach (9) near a side of yarn guide channel (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220601635 CN202945438U (en) | 2012-11-15 | 2012-11-15 | Sewing machine thread trimmer with function of elastically positioning bottom thread ends |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220601635 CN202945438U (en) | 2012-11-15 | 2012-11-15 | Sewing machine thread trimmer with function of elastically positioning bottom thread ends |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202945438U true CN202945438U (en) | 2013-05-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220601635 Expired - Fee Related CN202945438U (en) | 2012-11-15 | 2012-11-15 | Sewing machine thread trimmer with function of elastically positioning bottom thread ends |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202945438U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102953240A (en) * | 2012-11-15 | 2013-03-06 | 东莞市名菱工业自动化科技有限公司 | Sewing machine thread trimmer with base thread end positioning function |
| CN114395866A (en) * | 2022-01-25 | 2022-04-26 | 杰克科技股份有限公司 | Thread cutting method of sewing machine and sewing machine |
-
2012
- 2012-11-15 CN CN 201220601635 patent/CN202945438U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102953240A (en) * | 2012-11-15 | 2013-03-06 | 东莞市名菱工业自动化科技有限公司 | Sewing machine thread trimmer with base thread end positioning function |
| CN114395866A (en) * | 2022-01-25 | 2022-04-26 | 杰克科技股份有限公司 | Thread cutting method of sewing machine 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: 20130522 Termination date: 20191115 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |