CN106048910A - Presser foot of single-needle sewing machine - Google Patents
Presser foot of single-needle sewing machine Download PDFInfo
- Publication number
- CN106048910A CN106048910A CN201610567005.1A CN201610567005A CN106048910A CN 106048910 A CN106048910 A CN 106048910A CN 201610567005 A CN201610567005 A CN 201610567005A CN 106048910 A CN106048910 A CN 106048910A
- Authority
- CN
- China
- Prior art keywords
- cutting knife
- sewing machine
- presser feet
- blade
- needle sewing
- 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.)
- Granted
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Classifications
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B29/00—Pressers; Presser feet
- D05B29/06—Presser feet
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B29/00—Pressers; Presser feet
- D05B29/12—Presser-foot attachment
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B65/00—Devices for severing the needle or lower thread
- D05B65/02—Devices for severing the needle or lower thread controlled by the sewing mechanisms
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The invention relates to a sewing machine technology, particularly to a presser foot of a single-needle sewing machine. The presser foot includes a presser foot plate and a cutter, a needle hole which extends from back to front along a straight line to a front end edge and is open is arranged in the presser foot plate, a take-up slot which extends backwards from the rear end of the needle hole is arranged on a bottom surface of the presser foot plate, the cutter is vertically fixed on the surface of the presser foot plate, the front end of the cutter has a blade, the blade is located on a left side edge or a right side edge of the needle hole, an edge of one side of the needle hole corresponding to the blade is provided with a groove which is sunken, and the blade is located in the groove. Compared with a special presser foot of an bird-nest-preventing device of a sewing machine in the prior art, the presser foot provided by the invention can cut off a thread only during sewing, prevents unnecessary stitch skipping and thread breaking faults during sewing, shortens the length of thread residue after the thread is cut, and does not trigger a phenomenon that the thread is easy to cut off when a user sews from a relatively thick part of a cloth to a relatively thin part.
Description
Technical field
The present invention relates to sewing machine technique field, particularly relate to use in sewing machine presser feet.
Background technology
Along with the development of apparel industry, present single needle sewing machine (abbreviation single needle machine) possesses the most at large to be cut automatically
Line function, this function is improving the production efficiency of operator, is also bringing a drawback, i.e. while reducing labor intensity
If do not drag tight when playing seam reaching the standard grade, the reverse side of sewing arises that a random line, is commonly called as " Bird's Nest " phenomenon, does not only result in sewing
Stitching portion out is smooth, unsightly, reduce the class of sewing, and also result in the waste of suture.Form " Bird's Nest " phenomenon
Reason be stay on pin after previous subtangent long the end of a thread when playing seam no-station pole canopy and be brought to fabric reverse side and caused.If risen
To some tension force of needlework during seam, then this problem would not occur.
To this end, at present single needle machine all uses anti-Bird's Nest device to avoid the occurrence of " Bird's Nest " phenomenon, anti-Bird's Nest device mainly by
Automatically controlled part (is used for controlling each mechanism action), wire-clamping device, and this 3 part of anti-Bird's Nest presser feet composition, is sold on the market
The one anti-Bird's Nest presser feet that anti-Bird's Nest device is nearly all shared, as depicted in figs. 1 and 2.Anti-Bird's Nest device difference on the market
It is their wire-clamping device, is broadly divided into two kinds, be aspirated-air type wire-clamping device and mechanical type wire-clamping device respectively.Aspirated-air type is pressed from both sides
Line apparatus is a special purpose machinery of Juki Corporation of Japan Earlier designs, and clamp head and lint absorbing all use aspiration, and mechanical type presss from both sides
Line apparatus is then the device utilizing machinery action to clamp the end of a thread that market is common, and the purpose of both devices is all to cut
The end of a thread after line clamps.For mechanical type wire-clamping device, this device comprises line hook and tabletting, the work connecting cylinder
When making, cylinder stretches out, and connects superincumbent line hook and returns to the end of a thread, and the end of a thread is pushed down by tabletting, it is achieved wire clamping function.
Although the working method of aspirated-air type wire-clamping device and mechanical type wire-clamping device slightly difference, but coordinate with them
Presser feet is almost the same, and as illustrated in fig. 1 and 2, the presser feet for anti-Bird's Nest device of prior art includes pressure foot 1 and cutting knife
2, pressure foot 1 offers the pin hole 11 the most linearly extending to front edge and opening, on the bottom surface of pressure foot
Having take-up groove 12, cutting knife 2 is transversely embedded in the inside of pressure foot 1, and the right side opening of the rear end of pin hole 11 is provided with and pin hole 11
The guiding wire casing 13 being connected, the blade of cutting knife 2 extends transversely and exposes in metallic channel 13, after metallic channel 13 makes line enter
Cut off by the blade of cutting knife 2.But using use, finding that this presser feet exists a lot of problem, such as: when playing seam, bouncing pilotage is easily occurring
And disconnection problem；The problem that needlework are cut off by cutting knife 2 is had during sewing；When thicker part is stitched to thin location at pressure foot 1
Stick up in rear portion height, anterior sink state, needlework easily slide in the metallic channel 13 of presser feet and are cut off by the cutting knife 2 in presser feet.
Transversely arrange, with cloth during cutting knife 2 design and installation that the reason of generation the problems referred to above is in presser feet
Width is parallel, vertical with cloth-feeding direction, so cutting knife 2 just should be placed on the limit of take-up groove 12 inevitably, such as Fig. 2 institute
Showing, such cutting knife 2 pin center Z that disembarks is the most distant.In order to make the line can the district at the correct blade place entering cutting knife 2
Territory, the pin hole 11 of presser feet needs to be enlarged, take-up groove 12 limit of presser feet needs chamfering, processes a tiny metallic channel 13
(not having in common presser feet), makes blade expose and line can slip into this region smoothly.The pin hole 11 strengthened and metallic channel 13 are at seam
Fabric can not be pushed down time processed well, easily cause bouncing pilotage and disconnection fault.When the pin code that sewing requires is bigger, line holds very much
Easily slipping into metallic channel 13 and caused seam broken string and sewing interrupt line, when thicker part is stitched to thin location, needlework are easily by presser feet
It is also this reason that cutting knife 2 cuts off.In order to adapt to the sewing of all kinds of technique, the end of a thread having made seam residual is the shortest, and pin is from cutting
The vertical dimension of the blade of cutter 2 correspondingly needs to be transferred to about 3mm, and the end of a thread now remained is also about 3mm, have impact on sewing
The quality of technique, when sewing stitching and requiring the highest, finished product also needs to carry out trimming hair operation by hand.
Summary of the invention
In view of this, in order to solve above problem of the prior art, it is an object of the invention to develop a kind of novel single needle
The presser feet of sewing machine, line only can be cut off by it when playing seam, it is to avoid bouncing pilotage unnecessary during sewing and disconnection fault, shortens tangent line
After stub, and the phenomenon that needlework are easily cut off when cloth thicker part is stitched to thin location will not be caused.
For achieving the above object, the present invention is by the following technical solutions.
The presser feet of a kind of single needle sewing machine, including pressure foot and cutting knife, offers in described pressure foot from back to front along straight
Line extends to the pin hole of front edge and opening, the bottom surface of described pressure foot has and extends back from described pin hole rear end
Take-up groove, it is characterised in that: the surface being fixed on described pressure foot erect by described cutting knife, and the front end of described cutting knife has blade,
Described blade is positioned in left side edge or the right side edge of described pin hole, and described pin hole is on a lateral edges of corresponding described blade
Offering recessed groove, described blade is positioned in described groove.
Preferably, the rear portion of described pin hole has eedle center, and described blade is positioned at described eedle center
Right side or left side.
Preferably, the described blade vertical dimension apart from described eedle center is 1-2mm.
Preferably, the length direction of described cutting knife is along medial surface and the described cutting knife of the most extended and described cutting knife
One lateral edges of the pin hole at place flushes.
In a particular embodiment, described groove is the arc of indent, and its degree of depth is less than the thickness of described toeguard.
For the ease of location and installation, described pressure foot offers cutting knife mounting groove, the front end of described cutting knife mounting groove with
Described groove is connected, and the lower end of described cutting knife is fixed in described cutting knife mounting groove.
Wherein, in a particular embodiment, during the lower end of described cutting knife is welded on described cutting knife mounting groove.
Preferably, described presser feet also includes protecting line sheet, described in protect line sheet and include being enclosed in the side of the lateral surface of described cutting knife
Stopper, the cap covered on described cutting knife and the connecting portion being connected with described pressure foot.
It is further preferred that the front end in described side block portion has the front end occlusion part of the edge bending along described groove, institute
State the upper end-face edge that cap extends along the longitudinal direction and covers described cutting knife.
Further, described connecting portion offers connecting hole.
Owing to using technique scheme, cutting knife is arranged on the side of pin hole by the presser feet of the single needle sewing machine of the present invention,
And be directed at blade cut off by needlework by the groove of indent on a lateral edges of blade, reach following technique effect:
(1) pin hole of presser feet is identical with common presser feet, can be compacted fabric well, it is to avoid bouncing pilotage unnecessary during sewing and broken string event
Barrier；(2) cutting knife of this presser feet only rise seam time line can be cut off, other time cutting knife touch less than line, so also will not go out
The situation that existing line is cut off by blade；(3) pin hole side is close to by blade, with the metallic channel that the cutting knife of prior art is positioned at pin hole rear end
In compare vertical dimension with eedle center closer to, the stub after tangent line is more shorter than prior art；(4) will not cause
The phenomenon that needlework are easily cut off when cloth thicker part is stitched to thin location.
Accompanying drawing explanation
Fig. 1 is the front view of the presser feet of prior art.
Fig. 2 is the rearview of the presser feet of prior art.
Fig. 3 is the front view of the presser feet in the present invention.
Fig. 4 is the rearview of the presser feet in the present invention.
Fig. 5 is the front view of the pressure foot in the present invention.
Fig. 6 is the cutting knife in the present invention and the cooperation schematic diagram protecting line sheet.
Fig. 7 is the structural representation protecting line sheet in the present invention.
Fig. 8 is the structural representation of the cutting knife in the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawings the preferred embodiment of the present invention is described in detail.
Referring to Fig. 3 to 8, the presser feet of a kind of single needle sewing machine, including pressure foot 10, cutting knife 20 with protect line sheet 30.
Pressure foot 10 offers the pin hole 110 the most linearly extending to front edge and opening, pressure foot
Having the take-up groove 120 extended back from pin hole 110 rear end on the bottom surface of 10, the table being fixed on pressure foot 10 erect by cutting knife 20
Face, the front end of cutting knife 20 has blade 21, and blade 21 vertically extends.Blade 21 is positioned at the left side edge of pin hole 110
112 or right side edge 111 on, the present embodiment is in right side edge 111, as shown in Figure 1.Pin hole 110 is on the right side of corresponding blade 21
Offering the groove 130 of indent on lateral edges 111, groove 130 is connected with pin hole 110, and blade 21 is positioned in groove 130, from
And making blade 21 just expose at pin hole 110 side, needlework enter cutting zone by groove 130, and then needlework pull on
Cut off by blade 21 afterwards.
The rear portion of pin hole 110 has eedle center Z, and in the present embodiment, blade 21 is positioned at the right side of eedle center Z
Side.Blade 21 is 1-2mm apart from vertical dimension L of eedle center Z, and the present embodiment is 1.5mm.Owing to blade 21 is apart from machine
The vertical dimension of pin center closer to, so the knitting wool head stayed after tangent line on sewing cloth is shorter, only 1.5mm.
In the present embodiment, the length direction of cutting knife 20 is along the most extended and medial surface of cutting knife 20 and cutting knife 20 institute
The right side edge 111 of pin hole 110 flush.The arc that groove 130 is indent being opened in right side edge 111, its degree of depth
Thickness less than toeguard 10.Specifically, in the present embodiment, the thickness of toeguard 10 is 2mm, and the degree of depth of this groove 130 is 1mm,
Blade 21 is made to expose.During sewing, eedle declines, and needlework also and then decline, and suture enters blade tangent line region by groove 130,
Machine work feed forward, works in coordination with wire-clamping device and is tightened by upper thread, and line is encountered the blade 21 of cutting knife 2 and cut off.
For location and installation cutting knife 20 exactly, as it is shown in figure 5, offer cutting knife mounting groove 140, cutting knife on pressure foot 10
The front end of mounting groove 140 is connected with groove 130, and the lower end of cutting knife 20 is fixed in cutting knife mounting groove 140.Wherein, this enforcement
In example, the lower end of cutting knife 20 is fixed by welding in cutting knife mounting groove 140.
Such as Fig. 3, shown in 6 and 7, protect line sheet 30 and include being enclosed in the side block portion 31 of the lateral surface of cutting knife 20, cover at cutting knife
On cap 32 and the connecting portion 33 that is connected with pressure foot 10.As shown in Figure 6, the front end in side block portion 31 has along groove 130
The front end occlusion part 311 of edge bending, cap 32 extends along the longitudinal direction and the upper end-face edge of cutting knife 20 is completely covered.Connecting portion
Offer connecting hole 331 on 33, protect line sheet 30 by being fixed on pressure foot through the screw of connecting hole 331, in order to install.
In order to change cutting knife 20, cutting knife 20 may be used without not welding with pressure foot 10, and is only pressed abd fixed on presser feet by protecting line sheet 30
Mode on plate 10 is fixed, and so removes after protecting line sheet 30, and cutting knife 20 is natural to get loose from pressure foot 10, it is simple to change.
Protect line sheet 30 and here not only act as the effect of fixed cutting tool 20, but also the hands avoiding operator is encountered cutting knife 20 and cut
The safety protection function of wound, it is also possible to avoid needlework to enter the tangent line region of cutting knife 20 when non-seam and cause unnecessary breaking
Line phenomenon.
Above-described embodiment, only for technology design and the feature of the explanation present invention, its object is to allow person skilled in the art
Scholar will appreciate that present disclosure and implements according to this, can not limit the scope of the invention with this, all according to the present invention
The equivalence that spirit is made changes or modifies, and all should contain within protection scope of the present invention.
Claims (10)
1. a presser feet for single needle sewing machine, including pressure foot and cutting knife, offers the most linearly in described pressure foot
Extend to the pin hole of front edge and opening, the bottom surface of described pressure foot has the receipts extended back from described pin hole rear end
Wire casing, it is characterised in that: the surface being fixed on described pressure foot erect by described cutting knife, and the front end of described cutting knife has blade, institute
Stating blade to be positioned in left side edge or the right side edge of described pin hole, described pin hole is opened on a lateral edges of corresponding described blade
Being provided with recessed groove, described blade is positioned in described groove.
The presser feet of a kind of single needle sewing machine the most according to claim 1, it is characterised in that: the rear portion of described pin hole has machine
Pin center, described blade is positioned at right side or the left side of described eedle center.
The presser feet of a kind of single needle sewing machine the most according to claim 2, it is characterised in that: described blade is apart from described eedle
The vertical dimension of center is 1-2mm.
4. according to the presser feet of a kind of single needle sewing machine described in claims 1 to 3 any one, it is characterised in that: described cutting knife
Length direction neat with a lateral edges of the pin hole at described cutting knife place along the medial surface of the most extended and described cutting knife
Flat.
The presser feet of a kind of single needle sewing machine the most according to claim 1, it is characterised in that: described groove is the arc of indent
Shape, its degree of depth is less than the thickness of described toeguard.
The presser feet of a kind of single needle sewing machine the most according to claim 1, it is characterised in that: offer on described pressure foot and cut
Cutter mounting groove, the front end of described cutting knife mounting groove is connected with described groove, and the lower end of described cutting knife is fixed on described cutting knife peace
In tankage.
The presser feet of a kind of single needle sewing machine the most according to claim 6, it is characterised in that: the lower end of described cutting knife is welded on
In described cutting knife mounting groove.
8. according to the presser feet of a kind of single needle sewing machine described in claims 1 to 3 any one, it is characterised in that: described presser feet
Also include protecting line sheet, described in protect line sheet include being enclosed in the lateral surface of described cutting knife side block portion, cover on described cutting knife
Cap and the connecting portion being connected with described pressure foot.
The presser feet of a kind of single needle sewing machine the most according to claim 8, it is characterised in that: the front end in described side block portion has
The front end occlusion part bent along the edge of described groove, described cap extends along the longitudinal direction and covers the upper end edge of described cutting knife
Edge.
The presser feet of a kind of single needle sewing machine the most according to claim 8, it is characterised in that: offer on described connecting portion
Connecting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610567005.1A CN106048910B (en) | 2016-07-19 | 2016-07-19 | A kind of presser feet of single needle sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610567005.1A CN106048910B (en) | 2016-07-19 | 2016-07-19 | A kind of presser feet of single needle sewing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106048910A true CN106048910A (en) | 2016-10-26 |
| CN106048910B CN106048910B (en) | 2019-01-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610567005.1A Active CN106048910B (en) | 2016-07-19 | 2016-07-19 | A kind of presser feet of single needle sewing machine |
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| Country | Link |
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| CN (1) | CN106048910B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106637712A (en) * | 2016-11-17 | 2017-05-10 | 浙江中捷缝纫科技有限公司 | Presser foot with thread cutter |
| CN107675366A (en) * | 2017-02-28 | 2018-02-09 | 苏州市志诚机械有限公司 | A kind of flat seam machine |
| CN108589063A (en) * | 2018-03-16 | 2018-09-28 | 无锡品益缝纫机有限公司 | Sewing machine presser foot structure |
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| US5505147A (en) * | 1995-02-24 | 1996-04-09 | Union Special Corporation | Latch taking knife and thread clamp |
| CN101372794A (en) * | 2008-10-16 | 2009-02-25 | 上海贵衣缝纫设备有限公司 | Adjustment mechanism for presser foot for connection in pattern machine |
| DE102008051945A1 (en) * | 2007-10-17 | 2009-05-07 | Tokai Kogyo Mishin K.K., Kasugai | Pressure foot for sewing machine, includes component with inclined surface designed to push thread into position avoiding contact with sewing needle tip |
| CN204702920U (en) * | 2015-06-04 | 2015-10-14 | 浙江杜马缝纫机股份有限公司 | A kind of novel sewing-machine foot and anti-Bird's Nest device |
| CN204738119U (en) * | 2015-06-19 | 2015-11-04 | 杰克缝纫机股份有限公司 | Sewing machine gets rid of bird's nest device |
| CN105420938A (en) * | 2015-12-29 | 2016-03-23 | 杰克缝纫机股份有限公司 | Bird nest removing quick blade replacing blade-attached presser foot for sewing machine |
-
2016
- 2016-07-19 CN CN201610567005.1A patent/CN106048910B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5505147A (en) * | 1995-02-24 | 1996-04-09 | Union Special Corporation | Latch taking knife and thread clamp |
| DE102008051945A1 (en) * | 2007-10-17 | 2009-05-07 | Tokai Kogyo Mishin K.K., Kasugai | Pressure foot for sewing machine, includes component with inclined surface designed to push thread into position avoiding contact with sewing needle tip |
| CN101372794A (en) * | 2008-10-16 | 2009-02-25 | 上海贵衣缝纫设备有限公司 | Adjustment mechanism for presser foot for connection in pattern machine |
| CN204702920U (en) * | 2015-06-04 | 2015-10-14 | 浙江杜马缝纫机股份有限公司 | A kind of novel sewing-machine foot and anti-Bird's Nest device |
| CN204738119U (en) * | 2015-06-19 | 2015-11-04 | 杰克缝纫机股份有限公司 | Sewing machine gets rid of bird's nest device |
| CN105420938A (en) * | 2015-12-29 | 2016-03-23 | 杰克缝纫机股份有限公司 | Bird nest removing quick blade replacing blade-attached presser foot for sewing machine |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106637712A (en) * | 2016-11-17 | 2017-05-10 | 浙江中捷缝纫科技有限公司 | Presser foot with thread cutter |
| CN106637712B (en) * | 2016-11-17 | 2020-07-07 | 浙江中捷缝纫科技有限公司 | Presser foot with thread cutter |
| CN107675366A (en) * | 2017-02-28 | 2018-02-09 | 苏州市志诚机械有限公司 | A kind of flat seam machine |
| CN107675366B (en) * | 2017-02-28 | 2020-11-13 | 苏州市志诚机械有限公司 | Flush joint machine |
| CN108589063A (en) * | 2018-03-16 | 2018-09-28 | 无锡品益缝纫机有限公司 | Sewing machine presser foot structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106048910B (en) | 2019-01-01 |
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