CN1098380C - Take-up lever thread guider for double-needle sewing machine - Google Patents
Take-up lever thread guider for double-needle sewing machine Download PDFInfo
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- CN1098380C CN1098380C CN99120206A CN99120206A CN1098380C CN 1098380 C CN1098380 C CN 1098380C CN 99120206 A CN99120206 A CN 99120206A CN 99120206 A CN99120206 A CN 99120206A CN 1098380 C CN1098380 C CN 1098380C
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- Prior art keywords
- wire guide
- take
- tension lever
- thread take
- thread
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Abstract
The invention relates to a take-up lever thread guider for double-needle sewing machine, which make adjusting of the needle thread take-up eyelet easier in a sewing machine with short adjusting time. The thread take up lever thread guides 1 and 2 are position-adjustablly fixed via the spacers 21 and 22 to the fixing screws 19 and 20.
Description
Technical field
The present invention relates to a kind of take-up lever thread guider of two-needle sewing machine, be used to adjust 2 line amounts of reaching the standard grade and being pulled out by thread take-up tension lever.
Background technology
In the flush joint two-needle sewing machine, shown in Fig. 7,8, will be from the supply source existing thread take-up tension lever wire guide rob 1,2 of the S that respectively reaches the standard grade, the T guiding thread take-up tension lever 5 supplied with of the pin horizontal slotted hole 1c of formation, the 2c respectively on its base portion 1a, 2a to the left and right that reach the standard grade.Above-mentioned base portion 1a, 2a up and down overlapping thread take-up tension lever wire guide rob 1,2 utilize a bolt 4 that passes above-mentioned slotted hole 1c, 2c to be fixed on the clamp 3 on the sewing machine arm, and can adjust along moving with thread path crisscross (directions X among the figure).
Thread take-up tension lever 5 between the solid line position (top dead-centre) of Fig. 7 and dotted line position (bottom dead centre) with the main shaft knee-action.For example, for the T that reaches the standard grade that right pin is used, the length of reaching the standard grade from the leading part 2b of thread take-up tension lever wire guide rob to thread take-up tension lever 5 is T1 when this thread take-up tension lever 5 is in upper dead center position, is T2 when thread take-up tension lever 5 is in lower dead point position.Then go up the line amount that poor (T1-T2) of line length pulls out for thread take-up tension lever 5.Backguy amount be equivalent to reach the standard grade S, T walks around necessary line length around the syringe.Requirement is reached the standard grade S, T when walking around around the syringe, and thread take-up tension lever 5 descends, and makes line relaxation, the moment of reaching the standard grade and breaking away from from syringe, and thread take-up tension lever 5 risings, and obtain instantaneous loose.
Yet along with the raising of Sewing machines speed, the syringe rotary speed also correspondingly improves, thread take-up tension lever follow this syringe rotate reach the standard grade from syringe break away from moment to obtain instantaneous loose be very difficult.
Therefore, Sewing machines because it is not loose to reach the standard grade, pin seam bad connection phenomenon will occur during with high speed rotating.In order to improve pin seam bad connection, must adjust the desired location of thread take-up tension lever wire guide rob 1,2, so that adjust the above-mentioned loose amount of reaching the standard grade, promptly adjust S, T the length of reaching the standard grade from leading part 1b, the 2b of thread take-up tension lever wire guide rob to thread take-up tension lever 5.
Summary of the invention
When adjusting the desired location of above-mentioned existing thread take-up tension lever wire guide rob 1,2, looser a bolt 4 earlier, respectively thread take-up tension lever wire guide rob 1,2 is moved to assigned position to left and right directions in the scope of above-mentioned slotted hole 1c, 2c, again bolt 4 is tightened.
But, because thread take-up tension lever wire guide rob the 1, the 2nd is bearing on the clamp 3 by a bolt 4, so looser a bolt 4, when direction is done to move adjustment to the left and right to thread take-up tension lever wire guide rob 1,2, thread take-up tension lever wire guide rob 1,2 is that fulcrum rotates with this bolt 4, therefore, is difficult to adjust to correct shift position, owing to must not make it move adjustment rotationally, adjust operation and bother very much simultaneously.In addition, consider the pin seam of formation, when needing only the amount of pulling out of adjusting single line in the line of the left and right sides, can occur only wanting one of them thread take-up tension lever wire guide rob 1 is done mobile the adjustment, but the problem that by mistake another thread take-up tension lever wire guide rob 2 is moved.
The present invention proposes in order to solve above-mentioned problems of the prior art.
First purpose of the present invention provides a kind of in the two-needle sewing machine with two thread take-up tension lever wire guide robs, and the adjustment of its thread take-up tension lever wire guide rob is easy, and realizes the two-needle sewing machine take-up lever thread guider of correct adjustment in the short time.
Second purpose of the present invention provide a kind of can be by making the take-up lever thread guider of the two-needle sewing machine that the parts generalization reduces cost.
To achieve these goals, the take-up lever thread guider of technical scheme 1 described two-needle sewing machine of the present invention has a pair of thread take-up tension lever wire guide rob, form slotted hole on this base end part to the thread take-up tension lever wire guide rob, and overlap, form leading part on each front end, can vertically do to move to the thread take-up tension lever wire guide rob along slotted hole and adjust this, between above-mentioned a pair of thread take-up tension lever wire guide rob, two dottle pins are installed, described dottle pin has a body respectively, be provided with two ends that can embed in the above-mentioned slotted hole on this body, one of them end is axially short than the thickness of thread take-up tension lever wire guide rob along dottle pin, and the other end is longer than it, simultaneously these dottle pins are installed between the thread take-up tension lever wire guide rob with being inverted mutually, thereby can be respectively this be moved adjustment to one in the thread take-up tension lever wire guide rob along above-mentioned slotted hole vertical.
Take-up lever thread guider according to technical scheme 1 described two-needle sewing machine, can only move a thread take-up tension lever wire guide rob, therefore, for 2 are reached the standard grade, owing to can adjust thread take-up tension lever wire guide rob position individually, therefore adjust operation easily and can shorten the adjustment time.
In the take-up lever thread guider of this two-needle sewing machine,,, reach the purpose that reduces cost so can realize the generalization of parts because two dottle pins are identical.
In the take-up lever thread guider of this two-needle sewing machine, because two dottle pins are made one, so can reduce number of spare parts.
Description of drawings
Fig. 1 is the front view of the first embodiment of the present invention.
Fig. 2 is the clamp enlarged drawing of Fig. 1.
Fig. 3 is the thread take-up tension lever wire guide rob side view of Fig. 2.
Fig. 4 is the exploded view of Fig. 3.
Fig. 5 is the one-piece type dottle pin of second embodiment.
Fig. 6 is the dottle pin of the 3rd embodiment.
Fig. 7 is the thread take-up tension lever wire guide rob of existing two-needle sewing machine.
Fig. 8 is the side view of Fig. 7.
The specific embodiment
Take-up lever thread guider referring to figs. 1 through 4 explanations two-needle sewing machine of the present invention.
The structure identical with the parts that illustrate in the prior art be with identical symbol, and omit its explanation.
The left and right sides line that 2 coils of wire in abridged are pulled out from figure passes respectively on first wire guide rob 11,12 that is darted at sewing machine arm top.In addition, clamp 3 is fixed on the front of sewing machine arm.On clamp 3, dispose 2 auxiliary tension disks 13,14 giving weak tensile force, give 15,16 and 2 second wire guide robs 17,18 of two tension disks and privates spare 22 that line tension is better than auxiliary tension disk 13,14.
Below, the take-up lever thread guider G of present embodiment is described according to Fig. 3, Fig. 4.
This take-up lever thread guider G is made of with dottle pin 21,22 and set bolt 19,20 left and right sides line of left and right sides line with thread take-up tension lever wire guide rob 1,2 (structure is same as the prior art), present embodiment feature.
Be formed with axis through- hole 21d, 22d at left and right sides line on dottle pin 21,22.In addition, also be provided with width body 21b, the 22b bigger thereon respectively than slotted hole 1c, the 2c of above-mentioned thread take-up tension lever wire guide rob 1,2, be formed on this body 21b, 22b one end, diameter slightly little and axial length is lacked (0.5mm) slightly than the thickness of above-mentioned thread take-up tension lever wire guide rob 1,2 than the width of above-mentioned slotted hole 1c, 2c short protuberance 21a, 22a be formed on above-mentioned body 21b, the 22b other end on, diameter and above-mentioned short protuberance 21a, 22a is identical, axial length is long long protuberance 21c, 22c.
This take-up lever thread guider G is such configuration: left line with the slotted hole 2c of thread take-up tension lever wire guide rob 2 be formed on bolt hole 3a, 3b alignment configurations on the clamp 3 good after, through hole 21d, the 22d of this bolt hole 3a, 3b and dottle pin are consistent, left line are turned upside down with dottle pin 22 with dottle pin 21, right line reciprocally assemble again.
Therefore, left side line embeds the slotted hole 2c that the left line that is positioned at the below is used thread take-up tension lever wire guide rob 2 with the long protuberance 21c of dottle pin 21 and right line with the short protuberance 22a of dottle pin 22, the slotted hole 1c of thread take-up tension lever wire guide rob 1 of the right line above left line is positioned at the long protuberance 22c embedding of dottle pin 22 with the short protuberance 21a of dottle pin 21 and right line.
When being screwed into the set bolt 19,20 that passes slotted hole 1c, through hole 21d, 22d, slotted hole 2c in bolt hole 3a, the 3b of clamp 3, utilize the operation of tightening of left side set bolt 19, the right thread take-up tension lever wire guide rob 1 of upside is fixedly clamped at left line with between the body 21b and set bolt 19 heads of dottle pin 21, and utilize the operation of tightening of right side set bolt 20, downside left side thread take-up tension lever wire guide rob 2 is fixedly clamped at right line with between the body 22b and clamp 3 of dottle pin 22.
The left and right sides line that passes above-mentioned first wire guide rob 11,12 passes auxiliary tension disk 13,14, tension disk 15,16, the second wire guide rob 17,18 and privates spares 22 respectively successively.In addition, left and right sides line passes left line thread take-up tension lever wire guide rob 1, and right line passes respectively by thread take-up tension lever 5 and privates spare 23 in the pin hole of left and right sides pin 6,7 with after the thread take-up tension lever wire guide rob 2.
Formed threading hole separately respectively for left and right sides line on the thread take-up tension lever 5, two holes are adjacent one another are.Therefore, under the essentially identical situation of desired location of leading part 1b, the 2b of two thread take-up tension lever wire guide robs 1,2, basic identical to the line length of the left and right sides line of the threading hole of thread take-up tension lever from the leading part of each thread take-up tension lever wire guide rob.
Below, the thread take-up tension lever backguy amount of adjusting this take-up lever thread guider G is described, promptly adjust the operation of the desired location of left and right sides thread take-up tension lever wire guide rob 1,2.
When unscrewing left side set bolt 19, unclamp under with the body 21b of dottle pin 21 and the clamped condition between set bolt 19 heads from left line at the right thread take-up tension lever wire guide rob 1 of upside, at this moment, even right side set bolt 20 is just fastening, because long protuberance 22c does not clamp right thread take-up tension lever wire guide rob 1 with dottle pin 22 with respect to the right line that embeds in the slotted hole 1c, therefore right thread take-up tension lever wire guide rob 1 can be along the longitudinal sliding motion of slotted hole 1c.And since left line still engage with long protuberance 21c with the short protuberance 21a of dottle pin 21 with slotted hole 1c, the 2c of left and right sides thread take-up tension lever wire guide rob 1,2, so left and right sides thread take-up tension lever wire guide rob 1,2 keeping parallelisms and can not rotating.
Because when adjusting thread take-up tension lever wire guide rob 1 desired location, set bolt 20 keeps tight condition, so thread take-up tension lever wire guide rob 2 can be with thread take-up tension lever wire guide rob 1 towards moving with wiring path is crisscross.
When adjusting the desired location of thread take-up tension lever wire guide rob 2,,, can adjust and it can not rotate to left and right direction thread take-up tension lever wire guide rob 2 is done to move with above-mentioned same mode according to the formation of right line with dottle pin 22 by loosering a bolt 20.
According to the crosspointer take-up lever thread guider G of first embodiment, be separately fixed in the left and right sides thread take-up tension lever wire guide rob 1,2 on the clamp 3 by two set bolts 19,20, if unscrew a bolt 19, then be that left thread take-up tension lever wire guide rob 1 is removable.And unscrew another bolt 20, then be that right thread take-up tension lever wire guide rob 2 is removable.Therefore, owing to can individually adjust the desired location of thread take-up tension lever wire guide rob 1,2, therefore adjust operation and be very easy to and can shorten the adjustment time.
The axial length of body 21b, the 22b of dottle pin 21,22 is longer than the length of the W direction (Fig. 3) of leading part 1b, the 2b of thread take-up tension lever wire guide rob 1,2, can make leading part 1b, 2b close to overlapping.Therefore, the adjusting range of thread take-up tension lever wire guide rob 1,2 is wide, set more identically from the leading part of each thread take-up tension lever wire guide rob to the line length of the left and right sides line of the threading hole of thread take-up tension lever, the left and right sides position adjustment amount that while 2 thread take-up tension lever wire guide robs are 1,2 and the variation of thread take-up tension lever backguy amount can be necessarily.
Because of the dottle pin 21,22 same parts is contained between 2 thread take-up tension lever wire guide robs 1,2 mutually reversedly, thus can realize the general of parts, and can reduce cost.
The present invention is not limited to above-mentioned first embodiment, also can make different improvement to it.
For example, in first embodiment, 2 dottle pins 21,22 of same parts are contained between 2 thread take-up tension lever wire guide robs 1,2 reversedly, but also can consider at an easy rate with a dottle pin 25 shown in Figure 5 and replace 2 dottle pins.Second dottle pin 25 is the parts after with thickness limited wall 25c the dottle pin 21,22 of first embodiment being linked into an integrated entity, and can pass through resin casting or casting of metals moulding.The center distance of through hole 25a, the 25b of this dottle pin 25 is consistent with the center distance of clamp screw 3a, 3b.Use this dottle pin 25 also can play effect and the effect same with first embodiment.
In the 1st embodiment, 2 dottle pins 21,22 of same parts are contained between 2 thread take-up tension lever wire guide robs 1,2 reversedly, but also can consider at an easy rate with dottle pin shown in Figure 6 26,27 and replace.Though the total length of dottle pin 26,27 axis directions (W direction) is identical with short protuberance 26a, 27a, the length difference of long protuberance 26c, 27c.Use this different dottle pin 26,27 also can play effect and the effect identical with first embodiment.
As mentioned above, according to the take-up lever thread guider of technical scheme 1 described two-needle sewing machine, because a plurality of thread take-up tension lever wire guide rob can move individually, so adjust the easy and adjustment time weak point of operation.
According to technical scheme 2 described take-up lever thread guiders,,, reduce cost so can realize the generalization of parts because dottle pin is identical with two-needle sewing machine of above-mentioned dottle pin.
According to technical scheme 3 described take-up lever thread guiders, because dottle pin is made one, so can reduce number of spare parts with two-needle sewing machine of dottle pin.
Claims (3)
1. the take-up lever thread guider of a two-needle sewing machine, has a pair of thread take-up tension lever wire guide rob, form slotted hole on the base end part of this thread take-up tension lever wire guide rob, and overlap, form leading part on each front end, can vertically do to move to the thread take-up tension lever wire guide rob along above-mentioned slotted hole and adjust this, it is characterized in that: between above-mentioned a pair of thread take-up tension lever wire guide rob, two dottle pins are installed, described dottle pin has a body respectively, be provided with two ends that can embed in the above-mentioned slotted hole on this body, one of them end is axially short than the thickness of thread take-up tension lever wire guide rob along dottle pin, and the other end is longer than it, simultaneously these dottle pins are installed between the thread take-up tension lever wire guide rob with being inverted mutually, thereby can be respectively this be moved adjustment to one in the thread take-up tension lever wire guide rob along above-mentioned slotted hole vertical.
2. take-up lever thread guider according to claim 1 is characterized in that: above-mentioned two dottle pins are identical.
3. take-up lever thread guider according to claim 1 and 2 is characterized in that: above-mentioned two dottle pins are made one.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26447198A JP4050401B2 (en) | 1998-09-18 | 1998-09-18 | Double-needle sewing thread guide device |
| JP264471/1998 | 1998-09-18 | ||
| JP264471/98 | 1998-09-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1248650A CN1248650A (en) | 2000-03-29 |
| CN1098380C true CN1098380C (en) | 2003-01-08 |
Family
ID=17403691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99120206A Expired - Lifetime CN1098380C (en) | 1998-09-18 | 1999-09-17 | Take-up lever thread guider for double-needle sewing machine |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4050401B2 (en) |
| CN (1) | CN1098380C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107916505B (en) * | 2017-12-22 | 2023-07-11 | 浙江中捷缝纫科技有限公司 | Thread taking-up and threading mechanism of sewing machine |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5085159A (en) * | 1988-04-01 | 1992-02-04 | Pegasus Sewing Machine Mfg. Co., Ltd. | Needle thread feed regulating device for overseaming sewing machine |
| US5404824A (en) * | 1992-10-28 | 1995-04-11 | Juki Corporation | Needle thread feed control apparatus for sewing machine |
| JPH08187383A (en) * | 1995-01-11 | 1996-07-23 | Juki Corp | Thread presser for plural-needle sewing machine |
-
1998
- 1998-09-18 JP JP26447198A patent/JP4050401B2/en not_active Expired - Lifetime
-
1999
- 1999-09-17 CN CN99120206A patent/CN1098380C/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5085159A (en) * | 1988-04-01 | 1992-02-04 | Pegasus Sewing Machine Mfg. Co., Ltd. | Needle thread feed regulating device for overseaming sewing machine |
| US5404824A (en) * | 1992-10-28 | 1995-04-11 | Juki Corporation | Needle thread feed control apparatus for sewing machine |
| JPH08187383A (en) * | 1995-01-11 | 1996-07-23 | Juki Corp | Thread presser for plural-needle sewing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4050401B2 (en) | 2008-02-20 |
| CN1248650A (en) | 2000-03-29 |
| JP2000093681A (en) | 2000-04-04 |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20030108 |
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| CX01 | Expiry of patent term |