CN104060411A - Thread path mechanism of sewing machine - Google Patents
Thread path mechanism of sewing machine Download PDFInfo
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- CN104060411A CN104060411A CN201310091372.5A CN201310091372A CN104060411A CN 104060411 A CN104060411 A CN 104060411A CN 201310091372 A CN201310091372 A CN 201310091372A CN 104060411 A CN104060411 A CN 104060411A
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- needle bar
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- drawing lines
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Abstract
The invention relates to a thread path mechanism of a sewing machine, which is applied to the sewing machine provided with a needle rod switching mechanism. The thread path mechanism comprises a thread take-up lever, an annular needle rod case and a locating disk, wherein the annular needle rod case is provided with a rotating axis and a plurality of needle rod holes formed at intervals; the distance between each needle rod hole and the rotating axis is equal, and a needle rod provided with a needle is accommodated in each needle rod hole; the locating disk synchronously moves with the annular needle rod case, and a plurality of threading holes surround the rotating axis; and the thread take-up lever is located above the annular needle rod case, is provided with a swing end and a thread take-up end with a plurality of thread holes, and the thread take-up end is required to be located in an upper area located on the inner side of the periphery of the annular needle rod case. According to the thread path mechanism, a thread path is jointly formed by thread holes in the thread take-up lever, the threading holes in the locating disk and the needle holes in the needles, so that the length of a sewing thread passing the thread path mechanism cannot change due to change of the needle rod positions; and a thread clamping device can be additionally arranged in the thread path mechanism and matched with other components to clamp the sewing thread and release the sewing thread.
Description
Technical field
The present invention is positioned at about a kind of the drawing lines mechanism that Sewing machines headstock part is stablized suture position, particularly for a kind of Sewing machines with plural needle bar, carrying out needle bar while switching, be used for stablizing the drawing lines mechanism of a plurality of sutures length in drawing lines, in Qie Ci drawing lines mechanism, separately can there is a wire-clamping device, coordinate other members to form and clamp suture and the means that discharge suture.
Background technology
Press, general Sewing machines must configure relative lower horn and the needle plate of horn and below, in upper horn inside, with spindle synchronous, drive thread take-up mechanism and crankshaft arrangement, to drive the needle bar mechanism of headstock part, and lower horn is provided with in cloth feeding mechanism and needle plate below and is provided with hook line apparatus, suture needle drive by needle bar mechanism is sewn on reciprocal puncture cloth under line, and coordinates thread take-up mechanism and the correct operation sequential of hook line apparatus to carry out folding and unfolding suture, to carry out sewing operation.
Wherein, thread take-up mechanism is generally all positioned at needle bar mechanism top to guarantee the tension force of suture, and reduce suture through the resistance of thread take-up mechanism, and at present on the market except a kind of spininess bar type embroidery machine, fresh have the sewing facility that can directly carry out needle bar switching less, but because the shortcoming that general spininess bar type embroidery machine still has the feeding table top movement travel of bulky and drive unit to lengthen, therefore, be necessary that in fact innovative design goes out a kind of in the situation that of sewing datum mark and bottom platform invariant position, can need directly to switch the Sewing machines that different needle bars are sewed according to sewing.
Yet, once having been designed to ring-type needle bar casket, sewing locomotive head position switches plural needle bar, and thread take-up mechanism also must be processed most bar sutures simultaneously, if so adopt thread take-up mechanism to be positioned at the traditional design mode of needle bar top, after needle bar switches, can cannot stablize the length of plural suture in drawing lines, make the tension change of plural suture, and then affect sewing operation.
Summary of the invention
Main purpose of the present invention, aim to provide and a kind ofly for convertible needle bar held sewing machine, carry out the drawing lines mechanism that a plurality of sutures are stablized line taking, make the length of plural suture after the pin hole of the line hole through thread take-up tension lever and eedle, can not switch after needle bar and change to some extent because of Sewing machines.
Secondary objective of the present invention is further design one wire-clamping device in drawing lines mechanism, before Sewing machines switches needle bar, this wire-clamping device coordinates other members can discharge plural suture, to carry out needle bar switching, while intending to start to sew after Sewing machines switches needle bar, can clamp plural suture, to avoid plural suture that situation about departing from occurs from eedle pin hole.
For reaching described object, the drawing lines mechanism of Sewing machines of the present invention mainly comprises a thread take-up tension lever, a positioning disk and a ring-type needle bar casket, above-mentioned ring-type needle bar casket has an axis of rotation and the needle bar hole of establishing is arranged at a plurality of interval, above-mentioned each needle bar hole is all identical with the distance between above-mentioned axis of rotation, and in each needle bar hole, be installed with respectively a needle bar with eedle, and each eedle has a pin hole; Above-mentioned positioning disk has a plurality of through wires holes around above-mentioned axis of rotation, and is assembled in the synchronous start of above-mentioned ring-type needle bar casket; And above-mentioned thread take-up tension lever is positioned at above-mentioned ring-type needle bar casket top, there is a swinging end and a take-up end, above-mentioned swinging end is in order to drive the upper and lower displacement of above-mentioned take-up end, and above-mentioned take-up end is positioned at the upper area of above-mentioned ring-type needle bar casket inside circumference, has a plurality of line holes that penetrate for suture; Accordingly, the line hole of above-mentioned thread take-up tension lever is, the pin hole three of the through wires hole of above-mentioned positioning disk and above-mentioned eedle constructs out a drawing lines structure wearing for suture jointly.
Wherein, each through wires hole on above-mentioned positioning disk is located at respectively on the formed online position of above-mentioned axis of rotation and each needle bar axle center, and this drawing lines structure presents radial arrangement, allows plural suture present haply an equidistant sample state through after drawing lines.
In addition, the drawing lines mechanism of Sewing machines of the present invention can further comprise a wire-clamping device, and above-mentioned wire-clamping device comprises the clamp piece of being located at a plurality of through wires holes in above-mentioned positioning disk bottom; And above-mentioned clamp piece has a clamp face that can cover above-mentioned a plurality of through wires holes, and form a junction in above-mentioned clamp face one side, and on above-mentioned clamp face, offer a breach, with one of them of the above-mentioned a plurality of through wires holes of correspondence, and can coordinate the common formation one of an axle part, a spring and a nut to clamp suture means, separately can coordinate the common release suture means that form of a driving rod member.
The invention has the advantages that the pin hole three by the line hole of thread take-up tension lever, the through wires hole of positioning disk and eedle constructs out a drawing lines structure wearing for suture jointly, so can allow plural suture in the length after drawing lines mechanism, have obvious change after can not switching needle bar because of Sewing machines; In addition, seeing through clamp piece coordinates other members formation to clamp and the means that discharge.
Accompanying drawing explanation
Fig. 1 is the schematic perspective view that the present invention the first preferred embodiment drawing lines mechanism is positioned at Sewing machines headstock;
Fig. 2 is the schematic diagram that Fig. 1 Sewing machines is cut ring-type needle bar casket open;
Fig. 3 is the front view of Fig. 2 Sewing machines;
Fig. 4 is the side view of the present invention the second partly cut-away of preferred embodiment drawing lines mechanism;
Fig. 5 is that Fig. 4 suture is by the enlarged drawing of positioning disk, wire-clamping device and needle bar;
Fig. 6 is the exploded view of positioning disk of the present invention and wire-clamping device;
Fig. 7 is the bottom view that the second preferred embodiment drawing lines mechanism penetrates a plurality of sutures.
[primary clustering symbol description]
10---Sewing machines 22---thread take-up tension lever
11---headstock 221---swinging end
12---needle bar switching mechanism 222---take-up end
20---ring-type needle bar casket 223---line hole
201---cylindrical wall 23---suture
202---axis of rotation 24---wire-clamping device
203---needle bar hole 241---clamp piece
204---needle bar 241a---clamp face
205---eedle 241b---connecting portion
206---pin hole 241c---breach
207---upper area 242---axle part
21---positioning disk 243---spring
211---through wires hole 244---nut
212---needle bar hole 245---drives rod member
The specific embodiment
For ease of further structure of the present invention, use and feature thereof being had to the clearly full and accurate understanding of darker one deck and understanding, now enumerate preferred embodiment, coordinate accompanying drawing to be described in detail as follows:
Refer to shown in Fig. 1 and Fig. 2, the drawing lines mechanism of Sewing machines of the present invention coordinates to be arranged on the needle bar switching mechanism 12 at Sewing machines 10 headstock 11 positions, wherein, above-mentioned drawing lines mechanism has mainly comprised a ring-type needle bar casket 20, a positioning disk 21 and a thread take-up tension lever 22, and the cable-through hole in three is constructed a path wearing for suture 23 jointly.
Refer to shown in Fig. 2, ring-type needle bar casket 20 of the present invention has the cylindrical wall 201 of a ring-type, above-mentioned cylindrical wall 201 central authorities have an axis of rotation 202, and above-mentioned ring-type needle bar casket 20 neighboring edge places are provided with a plurality of spaced needle bars hole 203, each needle bar hole 203 is all identical with the distance between above-mentioned axis of rotation 202, and each needle bar hole 203 is interior is installed with respectively a needle bar 204 with eedle 205, and each eedle 205 has a pin hole 206.Wherein, above-mentioned ring-type needle bar casket 20 can be subject to above-mentioned needle bar switching mechanism 12 driven rotary, uses the relative position that changes each needle bar 204 and above-mentioned needle bar switching mechanism 12 in above-mentioned ring-type needle bar casket 20.
Positioning disk 21 of the present invention is assembled in above-mentioned ring-type needle bar casket 20 bottoms synchronous start, is provided with a plurality of through wires holes 211 around above-mentioned axis of rotation 202, and offers in outer periphery the needle bar hole 212 that the above-mentioned needle bar 204 of a plurality of confessions wears.Each through wires hole 211 on this positioning disk 21 is located at respectively between axis of rotation 202 and each needle bar 204 axle center on formed online position.
In addition, thread take-up tension lever 22 of the present invention is hubbed at headstock 11 front ends of Sewing machines 10, and be positioned at above-mentioned ring-type needle bar casket 20 tops, there is a swinging end 221 and another take-up end 222, above-mentioned swinging end 221 can pivotable drive above-mentioned take-up end 222 to carry out upper and lower displacement, and the range of movement of above-mentioned take-up end 222 must be positioned at the upper area 207 of above-mentioned ring-type needle bar casket 20 cylindrical wall 201 circumference that inner side forms, and be adjacent to the axis of rotation 202 of ring-type needle bar casket 20, and there is the plural line hole 223 penetrating for suture 23.
The present invention is arranged in behind the line hole 223 of above-mentioned thread take-up tension lever 22 by a plurality of sutures 23, penetrate cylindrical wall 201 inside of above-mentioned ring-type needle bar casket 20, and after allowing suture 23 pass via through wires hole 211 bottoms of above-mentioned positioning disk 21, directly suture 23 is penetrated to the pin hole 206 of above-mentioned eedle 205, so can jointly construct out a drawing lines path by pin hole 206 threes of the line hole 223 of above-mentioned thread take-up tension lever 22, the through wires hole 211 of positioning disk 21 and eedle 205.
Shown in Fig. 3, in a graphic preferred embodiment, the present invention designs above-mentioned thread take-up tension lever 22 in the upper area 207 of above-mentioned ring-type needle bar casket 20 cylindrical wall 201 circumference that inner side forms, make the line hole 223 on above-mentioned thread take-up tension lever 22, through wires hole 211 on above-mentioned positioning disk 21 and the pin hole 206 on above-mentioned eedle 205 present a radial arrangement from top to bottom, allow suture 23 in the line hole 223 through drawing lines mechanism, after through wires hole 211 and pin hole 206, present haply one and be close to equidistant sample state, after avoiding needle bar 204 to switch, the length of plural suture 23 in drawing lines can cannot be stablized.
Yet, the use that previous embodiment only illustrates for convenience, be not in a limitative way, separately referring again to shown in Fig. 4, in another preferred embodiment, positioning disk 21 of the present invention can further coordinate assembling one wire-clamping device 24, in order to by a plurality of, the suture 23 by positioning disk 21 optionally clamps or discharges, wherein, above-mentioned wire-clamping device 24 is provided with a clamp piece 241 in a plurality of through wires holes 211 one end (bottom as shown) of above-mentioned positioning disk 21 and is used for clamping suture 23, above-mentioned clamp piece 241 also can coordinate an axle part 242 by above-mentioned spring 243 one end, to be resisted against the nut 244 that is fixed on above-mentioned axle part 242 in conjunction with a spring 243 and a nut 244, the other end is resisted against above-mentioned clamp piece 241, make above-mentioned clamp piece 241 close contacts in above-mentioned positioning disk 21 end faces, form one and clamp suture means, and above-mentioned clamp piece 241 separately can coordinate a driving rod member 245 in order to drive the elastic force of the above-mentioned spring 243 of above-mentioned clamp piece 241 opposing, and order about above-mentioned clamp piece 241 and move down separated above-mentioned positioning disk 21 end faces, form one and discharge suture means, so can when switching needle bar 204, discharge suture 23.
Moreover, referring again to shown in Fig. 5 to Fig. 6, in diagram one preferred embodiment, above-mentioned clamp piece 241 has the clamp face 241a of the above-mentioned a plurality of through wires holes 211 of a covering, and in above-mentioned clamp face 241a bottom side, extend to form the connecting portion 241b of the above-mentioned driving rod member of a cooperation 245 assemblings, to prevent that above-mentioned clamp piece 241 from rotating, and offer a breach 241c on above-mentioned clamp face 241a, be mainly used to one of them of corresponding above-mentioned a plurality of through wires holes 211, suture 23 in using can freely be passed through, all the other not corresponding through wires holes 211 are clamped suture 23 by cooperation clamp face 241a, while starting to sew after needle bar 204 to avoid switching, plural number suture 23 departs from from pin hole 206.
Refer to shown in Fig. 7, known in aforementioned two different embodiment, feature of the present invention is that a plurality of sutures 23 are arranged in the line hole 223 of above-mentioned thread take-up tension lever 22, behind the drawing lines path that pin hole 206 threes of the through wires hole 211 of above-mentioned positioning disk 21 and above-mentioned eedle 205 construct out jointly, each suture 23 sections between above-mentioned through wires hole 211 and pin hole 206 present a radial arrangement from top to bottom, allow each suture 23 in the line hole 223 through drawing lines mechanism, after through wires hole 211 and pin hole 206, present haply one and be close to equidistant sample state, so at Sewing machines, carry out after needle bar 204 switches still stablizing the length that plural suture 23 is arranged in drawing lines.
Above illustrated embodiment is only not in a limitative way with the present invention for convenience of description, not from the present invention's spirit category, is familiar with various Simple transformeds and modification that industry technical staff can do, all must include in the scope of patent protection of the present invention.
Claims (6)
1. a drawing lines mechanism for Sewing machines, is characterized in that: comprise:
One ring-type needle bar casket, there is the needle bar hole that an axis of rotation and a plurality of interval row establish, above-mentioned each needle bar hole is all identical with the distance between above-mentioned axis of rotation, and in each needle bar hole, is installed with respectively a needle bar with eedle, and each eedle has a pin hole;
One positioning disk, is assembled in the synchronous start in above-mentioned ring-type needle bar casket bottom, has a plurality of through wires holes around above-mentioned axis of rotation; And
One thread take-up tension lever, be positioned at above-mentioned ring-type needle bar casket top, and be adjacent to above-mentioned axis of rotation, there is a swinging end and a take-up end, above-mentioned swinging end is in order to drive the upper and lower displacement of above-mentioned take-up end, and above-mentioned take-up end has a plurality of line holes that penetrate for suture, and range of movement must be arranged in the upper area of above-mentioned ring-type needle bar casket inside circumference;
Wherein, the line hole of above-mentioned thread take-up tension lever is, the pin hole three of the through wires hole of above-mentioned positioning disk and above-mentioned eedle constructs out a drawing lines path wearing for suture jointly.
2. the drawing lines mechanism of Sewing machines according to claim 1, is characterized in that: each through wires hole on described positioning disk is located at respectively between above-mentioned axis of rotation and each needle bar axle center on formed online position.
3. the drawing lines mechanism of Sewing machines according to claim 1, is characterized in that: each suture section between above-mentioned through wires hole and pin hole presents a radial arrangement from top to bottom, allows plural suture in presenting haply an equidistant sample state through after drawing lines.
4. the drawing lines mechanism of Sewing machines according to claim 1, it is characterized in that: described drawing lines mechanism further comprises a wire-clamping device, above-mentioned wire-clamping device is provided with a clamp piece that is covered in a plurality of through wires holes of above-mentioned positioning disk one end, above-mentioned clamp piece has a clamp face that can cover above-mentioned a plurality of through wires holes, and offer a breach on above-mentioned clamp face, with one of them of the above-mentioned a plurality of through wires holes of correspondence.
5. the drawing lines mechanism of Sewing machines according to claim 4, is characterized in that: described wire-clamping device is further provided with an axle part, a spring coordinates above-mentioned clamp piece formation one to clamp suture means with a nut jointly.
6. the drawing lines mechanism of Sewing machines according to claim 5, is characterized in that: described wire-clamping device is further provided with a driving shaft part and coordinates above-mentioned clamp piece to form release suture means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310091372.5A CN104060411A (en) | 2013-03-21 | 2013-03-21 | Thread path mechanism of sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310091372.5A CN104060411A (en) | 2013-03-21 | 2013-03-21 | Thread path mechanism of sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104060411A true CN104060411A (en) | 2014-09-24 |
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ID=51548329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310091372.5A Pending CN104060411A (en) | 2013-03-21 | 2013-03-21 | Thread path mechanism of sewing machine |
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| CN (1) | CN104060411A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108060521A (en) * | 2018-01-30 | 2018-05-22 | 洛阳雀金绣文化创意有限公司 | A kind of sparrow gold embroiders the application method of embroidery machine rotary sleeve transposition slabbing blade device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4448139A (en) * | 1981-10-27 | 1984-05-15 | Usm Corporation | Automatic thread changing sewing machine |
| WO2003025273A1 (en) * | 2001-09-20 | 2003-03-27 | Meca Spa | Device to change the color of the thread on quilting/embroidering machines, relative method and relative quilting/embroidering machine |
| US20070074646A1 (en) * | 2005-09-30 | 2007-04-05 | Modra Timothy J | Carpet making machinery |
| CN101285247A (en) * | 2007-04-10 | 2008-10-15 | Juki株式会社 | Sewing machine for sewing ornaments |
| CN201459387U (en) * | 2009-07-14 | 2010-05-12 | 上海富山精密机械科技有限公司 | Mechanism for adjusting wire loop size of industrial multi-needle sewing machine |
-
2013
- 2013-03-21 CN CN201310091372.5A patent/CN104060411A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4448139A (en) * | 1981-10-27 | 1984-05-15 | Usm Corporation | Automatic thread changing sewing machine |
| WO2003025273A1 (en) * | 2001-09-20 | 2003-03-27 | Meca Spa | Device to change the color of the thread on quilting/embroidering machines, relative method and relative quilting/embroidering machine |
| US20070074646A1 (en) * | 2005-09-30 | 2007-04-05 | Modra Timothy J | Carpet making machinery |
| CN101285247A (en) * | 2007-04-10 | 2008-10-15 | Juki株式会社 | Sewing machine for sewing ornaments |
| CN201459387U (en) * | 2009-07-14 | 2010-05-12 | 上海富山精密机械科技有限公司 | Mechanism for adjusting wire loop size of industrial multi-needle sewing machine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108060521A (en) * | 2018-01-30 | 2018-05-22 | 洛阳雀金绣文化创意有限公司 | A kind of sparrow gold embroiders the application method of embroidery machine rotary sleeve transposition slabbing blade device |
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Application publication date: 20140924 |