CN1824870B - Sewing machine - Google Patents
Sewing machine Download PDFInfo
- Publication number
- CN1824870B CN1824870B CN2006100092884A CN200610009288A CN1824870B CN 1824870 B CN1824870 B CN 1824870B CN 2006100092884 A CN2006100092884 A CN 2006100092884A CN 200610009288 A CN200610009288 A CN 200610009288A CN 1824870 B CN1824870 B CN 1824870B
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- light
- shank
- round end
- needle
- fiber optics
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Abstract
The invention relates to a seamer, which comprises a needle rod mounted with seaming needle; a device for moving needle rod up and down; a needle swing device for swinging the needle rod; a needle rod rotating device for rotating the needle rod; a slicing blade and hammer for forming buttonhole; the round head of upper slicing blade that lifting near the needle rod holds the optical fiber to emit light to the upper surface of processing cloth from the light radiator at the lower end of said optical fiber; and using the light spot formed on th the radiated position to instruct the position of buttonhole; using said light spot as reference, to align processing cloth and the light radiator will not affect the seaming process.
Description
(1) technical field
The present invention relates to a kind of Sewing machines, particularly relate to be provided with the light projection portion that uses to needle plate upper surface projection light on the shank or near the liftable movable link shank, can correctly carry out the Sewing machines of machining cloth contraposition.
(2) background technology
In the past, a kind of Sewing machines that when being placed on machining cloth on the feeding table, can correctly carry out the light projection portion that contraposition uses that has was arranged.In this Sewing machines, the light that throws through the portion of throwing with light carries out the contraposition of machining cloth as benchmark, can correctly place machining cloth.In the public clear 48-136 communique of Japanese Patent Laid, record following machining cloth positioner: at the arranged outside light projector device (light projection portion) of Sewing machines head; The needle downing position projection light of oblique upper in support portion from machining cloth; Opening of machining cloth through being placed in the support portion stitched this launching position of position alignment, can easily machining cloth be aimed at needle downing position.
Yet; In this machining cloth positioner; Cause is located at the light projection portion in the Sewing machines head outside from the oblique upper projection light; So the luminous point of the projection light of machining cloth upper surface is ellipticity, the peripheral part that opens the seam position that particularly ought be placed on the machining cloth on the feeding table has produced the occasion of fold, exists the luminous point off normal, the problem that focus point is fuzzy, hinder the correct contraposition of machining cloth takes place.In addition, the light projection portion itself that is convexly equipped with outside also existing craniad can disturb the problem of making operation.
(3) summary of the invention
The object of the present invention is to provide and a kind ofly when being placed on machining cloth on the feeding table, can correctly carry out contraposition and will carry out the necessary light projection of machining cloth contraposition portion being arranged on and not disturbing the locational Sewing machines of making operation.
The Sewing machines of technical scheme 1 comprises: the shank that suture needle is installed; The shank up-down mechanism that this shank is moved up and down is characterized in that, in the light projection portion of the upper surface projection light that has the machining cloth on needle plate on the said shank or near the liftable movable link shank.
Among the present invention, from being arranged on the shank or being arranged near the light projection portion on the liftable movable link shank, to the upper surface projection light that is placed on the machining cloth on the needle plate; On this launching position, form the luminous point of minor diameter; Utilize this luminous point, correctly indicate the active position of needle downing position or movable link, when placing machining cloth; Through the reference position on this machining cloth being aimed at the formation position of luminous point, can carry out correct contraposition.The light projection portion that is located on shank or the movable link does not protrude to the outside of Sewing machines, does not make operation so can not disturb.Light projection portion is being arranged on the occasion on the shank,, is not making operation so can not disturb because of light projection portion and the up-down of shank one.
The Sewing machines of technical scheme 2 is on the basis of the invention of technical scheme 1; It is characterized in that, be a kind ofly to have the needle swinging mechanism that makes the swing of said shank, make shank rotating mechanism that said shank rotates, form the structure of the button holing sewing machine of cutting knife that buttonhole uses and hammer.
The Sewing machines of technical scheme 3 is characterized in that, the light projection portion in the invention of technical scheme 2 is a kind of structure to said needle plate perpendicular projection light.
The Sewing machines of technical scheme 4 is characterized in that, the light projection portion in the invention of technical scheme 3 be a kind of from the said movable link of break-through the structure of the fiber optics projection light of formed installing hole.
The Sewing machines of technical scheme 5 is characterized in that, the movable link in the invention of technical scheme 4 is the upper cutter that forms the round end hole, and said light projection portion is configured to the form of projection light below the round end portion of said upper cutter.
The Sewing machines of technical scheme 6 is characterized in that, the movable link in the invention of technical scheme 4 is the hammer that forms buttonhole, and said light projection portion is configured to the form of projection light below the regulation position of said hammer.
More than purpose and the new characteristic thereof of these inventions, while read the detailed description that is described below, can obtain clearer and more definite understanding through contrasting accompanying drawing.
(4) description of drawings
Fig. 1 is the in-built front view of round end button holing sewing machine in the expression embodiment of the invention.
Fig. 2 is the block diagram that round end button holing sewing machine shown in Figure 1 is controlled system.
Fig. 3 is the amplification inclinating view of upper cutter.
Fig. 4 is the major part amplification view of upper cutter.
Fig. 5 is the hammer in the variation of the present invention and the major part amplification view of lower cutter.
Fig. 6 is the shank in the variation of the present invention and the major part enlarged drawing of suture needle.
Fig. 7 is the shank of Fig. 6 and the major part amplification view of fiber optics.
(5) specific embodiment
Specify with reference to the accompanying drawings and be applicable to embodiments of the invention.
As shown in Figure 1, round end button holing sewing machine M comprises: support portion 1; The upright post portion 2 that is located at the right upper portion of this support portion 1; The horn portion 3 of extending in opposite directions to left, with support portion 1 from the top of this post portion 2.
In support portion 1, be provided with: hammer seat 4; Hammer 5 with cutting knife bearing plane 5a; The curved needle seat 19 that comprises the bending needing mechanism of 1 pair of looper about having; Place the feeding table 17 that machining cloth W uses.
Hammer seat 4 is fixed on the framework 1a of support portion 1, and hammer 5 is fixed on the hammer seat 4, and the upper end of this hammer 5 is in and the upper surface of feeding table 17 position of sustained height roughly.Curved needle seat 19 can be bearing on the framework 1a of support portion 1 around vertical axis rotationally, with after the shank rotating mechanism (not shown) stated synchronously rotate.Upper surface at feeding table 17 has set up needle plate 18, the presser feet driving mechanism 14 that also is provided with presser feet 13 and drives this presser feet 13.Feeding table 17 integral body are slim rectangular box shape, open through otch with hammer 5 position in opposite directions.
In support portion 1, be provided with: the directions X feed mechanism that drives feeding table 17 by directions X drive motors 56 (with reference to Fig. 2) along directions X; Drive the Y direction feed mechanism of feeding table 17 along the Y direction by Y direction drive motor 58 (with reference to Fig. 2); Constitute the θ direction drive motor 52 (with reference to Fig. 2) and the gear mechanism of shank rotating mechanism.Directions X drive motors 56 makes feeding table 17 move along directions X (left and right directions) through the directions X feed mechanism, and Y direction drive motor 58 makes feeding table 17 move along Y direction (fore-and-aft direction) through Y direction feed mechanism.
In post portion 2, be provided with cutter driving with cylinder 11.In addition; In horn portion 3, be provided with and make shank up-down mechanism (not shown) that shank 8 moves up and down and the needle swinging mechanism (not shown) that shank 8 is swung, also be provided with the cutting knife supporting device 6 of linear motion-type and the transmission mechanism 12 that cutter driving is transmitted to this cutting knife supporting device 6 with the action of cylinder 11 in addition.
On cutting knife supporting device 6, can be supported with cutter shaft member 7 with moving up and down, upper cutter 10 (being equivalent to movable link) is installed integratedly in the lower end of the cutter shaft member 7 of protrusion below horn portion 3.The upper cutter of so installing 10 and moves to go up and down accordingly with the advance and retreat of cylinder 11 to the cutter driving that cutting knife supporting device 6 transmits through transmission mechanism 12.
Leading section in horn portion 3 is provided with shank 8, in the lower end of this shank 8 suture needle 9 is installed.Shank 8 is because the action of the needle swinging mechanism that the revolving force of the main shaft (not shown) that is driven by electrical motor of sewing machine 60 (with reference to Fig. 2) rotation transmits through cam mechanism, and correspondingly swings with the amplitude of regulation.In addition, shank 8 carries out moving up and down of predetermined stroke through the transmission from main shaft.This moving up and down during main axis rotation 1 circle produces 2 times on leftward position and right positions.In addition, shank 8, synchronously rotates and center on vertical axis owing to be located at the action of known shank rotating mechanism in the support portion 1, that have θ direction drive motor 52 and gear mechanism with curved needle seat 19 each other.
Light-emitting device 15 with light emitting diode is installed on the underframe 3a of horn portion 3.Light-emitting device 15 is connected with an end of fiber optics 16.The other end of fiber optics 16 is via the inside of cutter shaft member 7, and the inboard in the round end hole 20 along upper cutter 10 as shown in Figure 4 arrives near the lower surface of upper cutter 10.Thus, the light that is sent by light-emitting device 15 carries out being imported into behind the optically focused inside of fiber optics 16 through condensing members such as half-reflecting mirror (not shown), and the inside in break-through cutter shaft member 7 and round end hole 20 is from the following faces downwards projection of upper cutter 10.The control system of following simple declaration round end button holing sewing machine M.
As shown in Figure 2, control device 40 comprises: the microcomputer with CPU45, ROM46 and RAM47; The input interface 49 that is connected with this microcomputer through buses such as data/address bus 48 and output interface 50 etc.
On input interface 49, be connected with and start shutdown switch 41, the presser feet switch 42 that is connected with presser feet, time signal generator 43, operation board 44.Time signal generator 43 detects the rotatable phase of main shaft, exports various time signals.
On output interface 50, be connected with drive circuit 55, the drive circuit 57 of directions X drive motors 56 usefulness, the drive circuit 59 of Y direction drive motor 58 usefulness, the operation board 44 of electromagnetic switching valve 54 of drive circuit 53, cylinder 11 usefulness of drive circuit 51, θ direction drive motor 52 usefulness of electrical motor of sewing machine 60 usefulness.
In ROM46, store the multiple buttonhole stitch needle tracking data of (comprise and reinforce the suture needle mark), also store the drive controlling program that makes shank up-down mechanism, needle swinging mechanism, shank rotating mechanism, feeding table 17 and upper cutter 10 action usefulness according to these needle tracking data.RAM47 has various working storage, buffer storage etc.
Below explanation through with the upper cutter 10 in hammer 5 interactions formation round end hole.
Like Fig. 3, shown in Figure 4, upper cutter 10 has: deburring is formed with overlooks the 10a of round end portion that sees roughly rounded round end hole 20 (being equivalent to installing hole); Foot section 10b with the continuous linearly shape of the 10a of this round end portion.Upper cutter 10 is run through in the round end hole of being located on the 10a of round end portion 20 on vertical direction.This upper cutter 10 as previously mentioned, along with cutter driving is gone up and down with the action of cylinder 11, going up towards the cutting knife bearing plane 5a of hammer 5 of the machining cloth W during decline from the feeding table 17 collides.Upper cutter 10 utilizes this collision that cutting out with 10a of round end portion and the corresponding part of foot section 10b of machining cloth W gone, and on this machining cloth W, forms the round end hole.
As shown in Figure 4, insert the fiber optics 16 lead in round end hole 20 and fix through bonding agent along the right-hand member wall in round end hole 20, extend near the following opening of upper cutter 10 always.Leading section at fiber optics 16 is formed with the light projection 16a of portion under shed, and as previously mentioned, the light that is imported into fiber optics 16 inside is from the light projection 16a of portion, and the projection light B as minor diameter as shown in Figure 4 is vertical to be throwed downwards.With upper cutter 10 when hammer 5 collides, the light projection 16a of portion is in the top of upper cutter 10 bottoms with predetermined distance, does not contact with hammer 5.In addition, fiber optics 16 is installed in the top in round end hole 20 and the inside of cutter shaft member 7 with lax state, when upper cutter 10 descends, is staggered in the installation site of the light projection 16a of portion.
As above effect and the effect of the round end button holing sewing machine M of structure are described below.
At first, after being placed on machining cloth W on the feeding table 17, the switch (not shown) of connecting light-emitting device 15 makes light-emitting device 15 luminous.Thus; The light that light-emitting device 15 sends passes the inside of fiber optics 16 through condensing member; From the projection light B of the vertical downward projection of the light projection 16a of portion of these fiber optics 16 front ends, below the upper surface of machining cloth W in opposite directions the feeding table 17 form the luminous point of minor diameter.Then; Machining cloth W on the feeding table 17 is moved; For example to make on this machining cloth W upper surface in advance the reference position of mark (fiducial mark) consistent with the luminous point of projection light B; Under this state, drive presser feet driving mechanism 14 presser feet 13 is descended,, finish the contraposition of machining cloth W through machining cloth W being sandwiched between presser feet 13 and the feeding table 17.
Like this; Because near liftable upper cutter 10 shank 8; Be provided with the vertical light projection 16a of portion that throws the projection light B of minor diameter downwards; Therefore machining cloth W being placed on 17 last times of feeding table, aim at the luminous point of the formed minor diameter of projection light B through making the reference position on this machining cloth W, thereby can correctly carry out the contraposition of the down position of machining cloth W and upper cutter 10.And,,, therefore, can not disturb yet and make operation to the part of the outside of Sewing machines M protrusion because the light projection 16a of portion is arranged on 20 inside, round end hole of upper cutter 10.
In addition; Owing to top (being the upper surface of machining cloth W) that vertically project feeding table 17 from the projection light B of the light projection 16a of portion, therefore, even when the upper surface of machining cloth W produces fold; It is fuzzy also to be not easy to take place luminous point off normal and focus point, can correctly carry out the contraposition of machining cloth W.
Insert the front end that leads to the fiber optics 16 in the round end hole 20 that remains in upper cutter 10 because the light projection 16a of portion is set at, therefore can prevent the breakage of the light projection 16a of portion.Because the 10a of round end portion of upper cutter 10 is used as the installing hole of fiber optics 16 in necessary round end hole 20 originally, therefore, fiber optics 16 can not become obstacle, can reduce cost of manufacture again.
The variation that the foregoing description is carried out local deformation is described below.
1) the present invention is also applicable in horn portion 3, being provided with liftable hammer 500, Cutter apron being fixed on the framework 1a of support portion 1, lower cutter 100 being arranged on the lower cutter type round end button holing sewing machine on this Cutter apron.As shown in Figure 5; The position that takes place to collide with the round end hole 100a of lower cutter 100 when the hammer 500 that is in the top position descends is provided with installing hole 500b; Fiber optics 16 inserted leads in this installing hole 500b, from the cutting knife bearing plane 500a of hammer 500 downsides to above set the light projection 16a of portion away from the position of predetermined distance.Shown in the chain-dotted line among Fig. 5; Penetrate projection light B from the cutting knife bearing plane 500a of hammer 500 to vertical below by this light projection 16a of portion, with Fig. 5 in form luminous point on the corresponding position, right side of round end hole 100a of the lower cutter 100 shown in the double dot dash line.The installing hole 500b of this occasion is so long as the hole of inserting logical necessary minor diameter of fiber optics 16 gets final product, and the existence of this installing hole 500b and fiber optics 16 can not hinder the formation in round end hole yet.
2) also can fiber optics 16 be arranged on the shank 8.Like Fig. 6, shown in Figure 7, form the cannelure 21 that always extends to the lower end towards vertical direction in the periphery wall portion of shank 8, on the needle bar frame 22 that is installed on shank 8 lower ends, form the installing hole 23 continuous with cannelure 21.Fiber optics 16 longitudinally groove 21 is buried underground, for example uses adhesive securement.The end portion of this fiber optics 16 is inserted to lead in the installing hole 23 of needle bar frame 22 and is extended to the bottom always; The light projection 16a of portion is installed on the installation side of suture needle 9 slightly skewedly, the form of upper surface (needle downing position) projection light of the needle plate 18 when formation suture needle 9 is in lifting position under suture needle 9.Through such installation, because the upper surface of the machining cloth W on needle plate 18 forms the luminous point of projection light B, so can correctly indicate needle downing position.Go up and down because of the light projection 16a of portion and shank 8 one that so are provided with, do not make operation so can not disturb.
3) the present invention is not limited to the round end button holing sewing machine M shown in the above embodiment, the button holing sewing machine of also using applicable to the keyhole of other shapes such as the straight buttonhole of formation.This occasion can be the suitable form of Fig. 1, upper cutter type shown in Figure 4, also can be the suitable form of lower cutter type shown in Figure 5.
4) the round end hole 20 of upper cutter 10, the corresponding size of diameter that also can widen fiber optics 16 makes its left end portion form conicoid.This occasion, when forming round end hole 20, the machining cloth part that is cut by upper cutter 10 moves to the top in round end hole 20 along conicoid, discharges to the outside easily, so can partly do not covered by this machining cloth from the projection light B of the light projection 16a of portion.
5) on the light projection 16a of portion, be not limited to fiber optics 16, also other illuminator such as applicable light emitting diode.
6) embodiment of light projection portion is set on Fig. 6, shank shown in Figure 7, is not limited to button holing sewing machine, also have all Sewing machiness of shank applicable to embroidery machine, Zigzag sewing machine etc.
From above detailed description, can find out, according to the invention of technical scheme 1, because from being arranged on the shank or being arranged near the light projection portion on the liftable movable link shank; To the machining cloth upper surface projection light that is placed on the needle plate; Therefore, be utilized in the luminous point of formed minor diameter on this launching position, can correctly indicate the active position of needle downing position or movable link; Through with the benchmark of this luminous point, can correctly implement the contraposition of machining cloth as the machining cloth contraposition.And the light projection portion that is arranged on shank or the movable link does not protrude to the outside of Sewing machines, therefore, can not disturb yet and make operation.
Invention according to technical scheme 2; Owing to be applicable to and have the needle swinging mechanism that makes the swing of said shank, can make shank rotating mechanism that shank rotates, form the cutting knife that buttonhole uses and the button holing sewing machine of hammer; Therefore; Be used to the formed luminous point of projection light, can correctly indicate the formation position of buttonhole, can correctly carry out the contraposition of machining cloth at the upper surface of machining cloth from light projection portion.
Invention according to technical scheme 3; Since light projection portion be a kind of above said needle plate the structure of perpendicular projection light; Therefore; Even this projection light is producing the occasion that forms luminous point on the machining cloth part of fold, it is fuzzy also to be not easy to take place luminous point off normal and focus point, can correctly carry out the contraposition of machining cloth.
According to the invention of technical scheme 4, owing to use the fiber optics of formed installing hole on the break-through movable link to constitute light projection portion, therefore, light projection portion follows the action of movable link and moves, and can prevent the breakage of this light projection portion.And installing hole only need be that the hole that can supply fiber optics to insert general minor diameter gets final product, and the existence of installing hole and fiber optics can not disturbed the action of movable link.
Invention according to technical scheme 5; Because movable link is the upper cutter that forms the round end hole, light projection portion is configured to the form of projection light below the round end portion of this upper cutter, therefore; Can be with the formation correct position contraposition in round end hole; In addition, because the installing hole of the necessary hole of script, round end hole as light projection portion used, can reduce cost of manufacture.
Invention according to technical scheme 6; Because movable link is the hammer that forms buttonhole; Light projection portion is configured to the form of projection light below the regulation position of this hammer; Therefore, even below needle plate, be provided with in the lower cutter type button holing sewing machine of cutting knife, also can be with forming the correct position contraposition by the buttonhole that hammer determined that descends.
More than; At the embodiment described in the specific embodiment of invention; Its intention is only for clear and definite technical content of the present invention; Can not be interpreted as to narrow sense property the present invention and just be defined in this specific embodiment, in the expressed scope of spirit of the present invention and claims, can do various distortion and implement.
Claims (1)
1. a button holing sewing machine comprises: the shank that suture needle is installed; The shank up-down mechanism that this shank is moved up and down; Near the upper cutter liftable this shank, that formation round end hole is used is characterized in that,
Said upper cutter has: be provided with the round end portion and the foot section that links to each other with round end portion in round end hole,
The end wall with said foot section opposition side along said round end hole is fixed with fiber optics, has the light projection portion of the upper surface perpendicular projection light of the machining cloth on needle plate at the leading section of this fiber optics,
The part of the foot section side in said round end hole is widened with the corresponding size of the diameter of said fiber optics and is formed conicoid.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005047463 | 2005-02-23 | ||
| JP2005-047463 | 2005-02-23 | ||
| JP2005047463A JP2006230605A (en) | 2005-02-23 | 2005-02-23 | Sewing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1824870A CN1824870A (en) | 2006-08-30 |
| CN1824870B true CN1824870B (en) | 2012-05-23 |
Family
ID=36935694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006100092884A Expired - Fee Related CN1824870B (en) | 2005-02-23 | 2006-02-21 | Sewing machine |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2006230605A (en) |
| CN (1) | CN1824870B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010011959A (en) * | 2008-07-02 | 2010-01-21 | Juki Corp | Buttonholing sewing machine |
| JP6382600B2 (en) * | 2014-06-30 | 2018-08-29 | 蛇の目ミシン工業株式会社 | Sewing machine with needle swing mechanism |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1139161A (en) * | 1995-05-12 | 1997-01-01 | 东海工业缝纫机株式会社 | Sewing machine |
| CN1146509A (en) * | 1995-02-08 | 1997-04-02 | 重机公司 | Sewing machine capable of making sawtooth-shape serging |
| CN1648313A (en) * | 2004-01-19 | 2005-08-03 | 兄弟工业株式会社 | Button hole sewing machine and button hole thread stich forming method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08206382A (en) * | 1995-02-08 | 1996-08-13 | Juki Corp | Radial tacking sewing machine |
| JP4336418B2 (en) * | 1999-05-07 | 2009-09-30 | Ｊｕｋｉ株式会社 | Sewing machine cloth cutting equipment |
-
2005
- 2005-02-23 JP JP2005047463A patent/JP2006230605A/en active Pending
-
2006
- 2006-02-21 CN CN2006100092884A patent/CN1824870B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1146509A (en) * | 1995-02-08 | 1997-04-02 | 重机公司 | Sewing machine capable of making sawtooth-shape serging |
| CN1139161A (en) * | 1995-05-12 | 1997-01-01 | 东海工业缝纫机株式会社 | Sewing machine |
| CN1648313A (en) * | 2004-01-19 | 2005-08-03 | 兄弟工业株式会社 | Button hole sewing machine and button hole thread stich forming method |
Non-Patent Citations (2)
| Title |
|---|
| JP特开2001-25592A 2001.01.30 |
| JP特开平8-206382A 1996.08.13 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2006230605A (en) | 2006-09-07 |
| CN1824870A (en) | 2006-08-30 |
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