CN102953240A - Sewing machine thread trimmer with base thread end positioning function - Google Patents
Sewing machine thread trimmer with base thread end positioning function Download PDFInfo
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- CN102953240A CN102953240A CN2012104584258A CN201210458425A CN102953240A CN 102953240 A CN102953240 A CN 102953240A CN 2012104584258 A CN2012104584258 A CN 2012104584258A CN 201210458425 A CN201210458425 A CN 201210458425A CN 102953240 A CN102953240 A CN 102953240A
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- thread
- guide channel
- yarn guide
- bottom line
- trimmer
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Abstract
The invention discloses a sewing machine thread trimmer with a base thread end positioning function. The sewing machine thread trimmer with the base thread end positioning function comprises a movable trimmer body, wherein one end of the movable trimmer body is at least provided with one mounting hole; the other end of the movable trimmer body is provided with a thread trimming bulge; the movable trimmer body is also provided with a thread guide slot; the tail end of the thread guide slot is provided with a positioning slot used for positioning the base thread end; the positioning slot is communicated with the thread guide slot; the positioning slot is arranged below the thread guide slot; and a hook is formed by the open end of the positioning slot and the thread guide slot. The sewing machine thread trimmer with the base thread end positioning function has the advantages of simple structure, reasonability in design, strong practicality and wide industrial use value, the base thread end positioning problem of the sewing machine can be effectively solved, and the base thread end can be accurately found when the sewing machine is used for sewing next time without the phenomenon of loosening the thread.
Description
Technical field
The present invention relates to a kind of Sewing machines thread trimmer, more particularly, relate 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 the 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 staggered the working in coordination with of movable blade and 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 occurs easily, cause the rework rate of product high, the qualification rate of finished product is low, and operating efficiency is also very low simultaneously, causes cost of labor high, production cost is high, and 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 cost, develops scheme.Well known, on Sewing machines, make little by little little change by the front end of slight thread trimmer, all must need the cost long time to go again experiment of experiment, 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 and a kind ofly has been fixedly installed an elasticity clamp body at needle plate, the front portion of rotating end by cutting blade is shaped with the line section that pushes away that matches with elasticity clamp body, when wire shear part matches with cutter head 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 the 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, so that complex structure, and be difficult to obtain the effect of desirable clamping bottom line the end of a thread, and occur easily there is not successful clamping, or top and bottom lines is held under the state that kinks, and causes pulling out when making thing bottom line is together extracted.
This shows that 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 obviously is the problem that the anxious wish of relevant dealer solves.
Summary of the invention
The object of the invention 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 inventor 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 at the movable blade body, have 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, technical scheme provided by the invention 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 the 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 of the present invention 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 catches opening upper thread and the bottom line receipts at pin hole place is caught, bottom line enters in the locating slot via yarn guide channel, the trimming projection is matched with dead knife upper thread and bottom line are cut off by movable blade and dead knife are staggered, this moment, the end of a thread of bottom line was still stayed in the 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, and has reasonable in design, technique is simple, effectively avoid off-line, so that product need not to do over again, improved 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 the locating slot, avoid bottom line to return in the 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, bottom line and upper thread are cut off in this trimming indentation, there during trimming, and the chip that trimming produces landing from perforate, avoid chip to be accumulated on the thread trimmer and impact is used, the cleaning that can keep thread trimmer, the service life of improving thread trimmer.
In sum, the present invention has simple in structure, and is 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 of the present invention 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 of the present invention;
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 of the present invention, therefore do not limit protection scope of the present invention.
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 the 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, and during trimming, movable blade body 1 is to moving near the dead knife direction, bottom line enters in the locating slot 5 via yarn guide channel 4 and positions, and can accurately find bottom line the end of a thread when Sewing machines is sewed.
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 a crotch 7, when bottom line the end of a thread is positioned at locating slot 5 when interior, owing to be subject to stopping of crotch 7, bottom line the end of a thread can not slip in the 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 movable blade body 1 can be received the upper thread at pin hole place and bottom line together and catch during the assurance trimming, and bottom line is positioned in the locating slot.
Described movable blade body 1 one ends also are provided with a perforate 8, this perforate 8 is overlapped 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, the end of a thread of bottom line is still stayed in the described locating slot at this moment, and line chip landing from perforate 8 that trimming produces, have reasonable in design, technique is simple, has effectively avoided off-line, stitched products to 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 present invention; but embodiments of the present invention are not restricted to the described embodiments; other any do not deviate from change, the modification done under Spirit Essence of the present invention and the principle, substitutes, combination, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
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 the 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) is overlapped 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 |
|---|---|---|---|
| CN2012104584258A CN102953240A (en) | 2012-11-15 | 2012-11-15 | Sewing machine thread trimmer with base thread end positioning function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104584258A CN102953240A (en) | 2012-11-15 | 2012-11-15 | Sewing machine thread trimmer with base thread end positioning function |
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| Publication Number | Publication Date |
|---|---|
| CN102953240A true CN102953240A (en) | 2013-03-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104584258A Pending CN102953240A (en) | 2012-11-15 | 2012-11-15 | Sewing machine thread trimmer with base thread end positioning function |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0716381A (en) * | 1993-05-07 | 1995-01-20 | Aisin Seiki Co Ltd | Thread-cutting device for sewing machine |
| CN101144229A (en) * | 2006-09-15 | 2008-03-19 | Juki株式会社 | Sewing machine |
| CN202482615U (en) * | 2011-12-21 | 2012-10-10 | 强信机械科技(莱州)有限公司 | Abrasion-proof tile knife |
| CN202945438U (en) * | 2012-11-15 | 2013-05-22 | 东莞市名菱工业自动化科技有限公司 | Sewing machine thread trimmer with function of elastically positioning bottom thread ends |
-
2012
- 2012-11-15 CN CN2012104584258A patent/CN102953240A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0716381A (en) * | 1993-05-07 | 1995-01-20 | Aisin Seiki Co Ltd | Thread-cutting device for sewing machine |
| CN101144229A (en) * | 2006-09-15 | 2008-03-19 | Juki株式会社 | Sewing machine |
| CN202482615U (en) * | 2011-12-21 | 2012-10-10 | 强信机械科技(莱州)有限公司 | Abrasion-proof tile knife |
| CN202945438U (en) * | 2012-11-15 | 2013-05-22 | 东莞市名菱工业自动化科技有限公司 | Sewing machine thread trimmer with function of elastically positioning bottom thread ends |
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Application publication date: 20130306 |