CN1123661C - Overseaming stitching machine - Google Patents
Overseaming stitching machine Download PDFInfo
- Publication number
- CN1123661C CN1123661C CN 00120057 CN00120057A CN1123661C CN 1123661 C CN1123661 C CN 1123661C CN 00120057 CN00120057 CN 00120057 CN 00120057 A CN00120057 A CN 00120057A CN 1123661 C CN1123661 C CN 1123661C
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- thread
- thread take
- lopping device
- tension lever
- tension
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Abstract
The invention provides a stable seam with no skip stitch by stabilizing a needle thread loop. This over-lock sewing machine for forming an edge darning seam comprises upper and lower looper driving mechanism 12, 14 for imparting thread trapping motion to upper and lower loopers in synchronization with the up-and-down motion of a needle thread and a looper thread take-up lever mechanism 10 operated on an upper looper thread and a lower looper thread for delivering and tightening a thread to the upper and lower loopers. The looper thread take-up lever mechanism 10 has a single thread take-up lever 132 capable of oscillating motion and the thread take-up lever is oscillated in association with the lower looper driving mechanism to operate on the upper looper thread and the lower looper thread.
Description
The present invention relates to have the overlock machine of the lopping device thread take-up tension lever mechanism that looper thread is supplied with and strained.
Existing overlock machine has and acts on the supply of reaching the standard grade and reaching the standard grade of passing suture needle and the need thread take-up lever (not shown) of tension; This suture needle and machine shaft interlock mutually move up and down, simultaneously, as shown in Figure 3, have the last lopping device 4 that passes looper thread 2, the following lopping device 8 that passes down looper thread 6, with carry out this up and down looper thread 2,6 carry lopping device thread take-up tension lever mechanism 10 with tension.
Last lopping device 4 is supported on the last lopping device rock body (not shown) that is fixed on the last lopping device axle 12 that shakes linkedly with machine shaft, shakes along with shaking of last lopping device axle 12.In addition, following lopping device 8 be supported on be fixed on machine shaft interlock and the following lopping device axle 14 that shakes on following lopping device rock body 8A on, shake along with shaking of lopping device axle 14 down.
Lopping device thread take-up tension lever mechanism 10 includes: fixing a plurality of pilot holes 16,18 of reaching the standard grade, the fixing pilot hole 22 that rolls off the production line, be fixed on the lopping device axle 12, with should go up the right thread take-up tension lever 30 that lopping device axle 12 shakes linkedly, the left thread take-up tension lever 32 that is fixed on down on the lopping device axle 14 and shakes linkedly mutually with this time lopping device axle 14.
Right thread take-up tension lever 30, the line hole 34 of looper thread 2 usefulness on its leading section has, the line hole 36 of portion with following looper thread 6 usefulness therebetween simultaneously.And thread take-up tension lever 32, portion is provided with the line hole 38 of looper thread 2 usefulness therebetween, is provided with the line hole 40 of looper thread 6 usefulness down at its leading section simultaneously.
From the last looper thread 2 that last looper thread supply source (not shown) is come, pass line hole 38, the line pilot hole 20 of the line hole 34 of passing right thread take-up tension lever 30 behind the line pilot hole 16 successively, line pilot hole 18, left thread take-up tension lever 32, the through wires hole 42 of last lopping device 4.The following looper thread 6 that comes from following looper thread supply source (not shown) then passes the line hole 36 of line pilot hole 22, right thread take-up tension lever 30, the line hole 40 of left thread take-up tension lever 32, the through wires hole 44 of following lopping device 8 successively.
Left side thread take-up tension lever 32, when putting on the following leading section of lopping device axle 14 is positioned at, it is maximum that the tension force of following looper thread 6 becomes.And right thread take-up tension lever 30, when the leading section of last lopping device axle 12 was positioned at the most following, the tension force of looper thread 2,6 became maximum up and down.
In the overlock machine of other conventional examples shown in Fig. 4, the shapes of right thread take-up tension lever 30 and left thread take-up tension lever 32 etc. are different with Fig. 3 example, but other points are identical, therefore, to identical part or the identical reference marks of element annotation, and part or the key element with said function also marked identical reference marks and omit its explanation.In the overlock machine of this conventional example, the configuration side by side respectively of the line hole 34,36 of right thread take-up tension lever 30 and the line hole of left thread take-up tension lever 32 38,40.
In the overlock machine of a conventional example more shown in Figure 5, the shape of right thread take-up tension lever 30 and left thread take-up tension lever 32 etc. are different with Fig. 3 example, and the path of last looper thread 2 etc. are also different.That is, the last looper thread 2 from not shown last looper thread supply source by line pilot hole 18,20, is through in the through wires hole 42 of lopping device 4 after the line hole 34 of right thread take-up tension lever 30 again.Thereby left thread take-up tension lever 32 does not act on the looper thread 2.Because other points are identical, except to identical part or the identical reference marks of element annotation and, part or the identical reference marks of element annotation also, and omit its explanation to having identical function.
Usually, in above-mentioned overlock machine, on the rotation phase that main shaft one changes, following lopping device axle 14 shakes with same phase with moving up and down of suture needle; Last lopping device axle 12 is then than lagging behind 20 °～40 ° on suture needle and following lopping device axle 14 phase places.Therefore, when suture needle was positioned at bottom dead centre, left thread take-up tension lever 32 was positioned at the most left point (top dead-centre) of its swing movement, but the rightest point (bottom dead centre) of right thread take-up tension lever 30 its swing movements of no show.
In addition, so above-mentioned, right thread take-up tension lever 30 shakes mutually linkedly with last lopping device axle 12, and left thread take-up tension lever 32 shakes mutually linkedly with following lopping device axle 14; But shake big than following lopping device axle 14 of lopping device axle 12 on the angle.Thereby under the situation that looper thread 2,6 is supplied with and strained about this right side thread take-up tension lever 30 shakes with left thread take-up tension lever 32 and carries out, supply and the tension undertaken by the action of right thread take-up tension lever 30 are main.
In Fig. 6, when suture needle 48 arrived bottom dead centre, needlework 46 tension force reached peak value, were passing through after bottom dead center, and along with suture needle 48 is risen, tension force reduces, the needlework 46 rich coils that form., even suture needle 48 begins to rise from bottom dead centre, right thread take-up tension lever 30 is the no show bottom dead centre also, and looper thread is keeping higher tension force up and down.Suture needle is risen from bottom dead centre, and needlework 46 are lax, even want to form coil, because looper thread 2,6 does not form coil with needlework 46 tensions of affluence yet up and down.The tension force of looper thread 2 in the F representative among the figure, the G representative is the tension force of looper thread 6 down, and H represents the direction by these tension force F, G tractive suture needle 48.
When suture needle 48 is risen again, when right thread take-up tension lever 30 had been crossed lower dead point position, looper thread 2,6 tension force reduced up and down, and the tension force of needlework 46 is also weakened, and so far, the rich immediately needle thread loop of the needlework of being introduced 46 expands rapidly.
Following problem has been arranged like this, and the coil of needlework 46 is not completed into from the initial stage that bottom dead centre rises in suture needle 48, and right thread take-up tension lever 30 sharply becomes big once crossing bottom dead centre, and it is very of short duration that the interval of modest size is stablized in the coil maintenance of needlework 46.
In addition, when suture needle 48 was risen from bottom dead centre, the needlework tubercle 46a before the pin of once tightening was owing to the tractive by the following looper thread 6 of high tensions relaxes.Thereby, in order to keep this needlework tubercle tension, must keep the higher tension force of suture needle 48.
The object of the present invention is to provide by making the needlework coil stable and can obtain not having the overlock machine of the stable needle tracking of wire jumper.
Another object of the present invention is to provide the tension force that need not improve suture needle can strain the overlock machine of the preceding needlework tubercle of a pin.
In order to achieve the above object, overlock machine according to formation bound edge needle tracking of the present invention, it has suture needle, need thread take-up lever, lopping device up and down, lopping device driving mechanism up and down, lopping device thread take-up tension lever mechanism, and being rotatedly connected moving of above-mentioned suture needle and machine shaft and pumping, above-mentioned need thread take-up lever acts on reaching the standard grade in the pinprick that is through this suture needle, and supply of reaching the standard grade and tension, above-mentioned up and down lopping device is to make the needlework of the pinprick that passes aforementioned suture needle and looper thread tubercle up and down form needle tracking looper thread to be passed choose the hole, above-mentioned up and down lopping device driving mechanism and aforementioned needlework pump synchronously and up and down the lopping device give line and catch motion, above-mentioned lopping device thread take-up tension lever mechanism then be act on looper thread and following looper thread and to about the lopping device supply with and strain; It is characterized in that, but aforementioned looper thread thread take-up tension lever mechanism has the single thread take-up tension lever of swing movement, this thread take-up tension lever shakes mutually linkedly with following lopping device driving mechanism, and acts on looper thread and following looper thread.Like this, because looper thread thread take-up tension lever mechanism has the single thread take-up tension lever that can shake, this thread take-up tension lever shakes mutually linkedly with lopping device driving mechanism, and act on looper thread and following looper thread, when bottom dead centre, needlework tension force have been arrived in suture needle to peaking, above-mentioned single thread take-up tension lever also arrives peak tension, in suture needle bottom dead centre when beginning to rise, thereby the tension force of looper thread forms stable needlework coil because thread take-up tension lever has also reduced up and down.In addition, when pin began to rise from bottom dead centre, because the needlework tubercle before the pin of once tightening can not pulled out by following looper thread, needlework were tightened up under low-tension.More again, need only not use 1 thread take-up tension lever,, become and adjust easily so moving part reduces as in the lopping device thread take-up tension lever mechanism that has overlock machine now 2 thread take-up tension levers (right thread take-up tension lever and left thread take-up tension lever) being set.
In addition, overlock machine according to formation bound edge needle tracking of the present invention, it has suture needle, need thread take-up lever, lopping device up and down, lopping device driving mechanism up and down, lopping device thread take-up tension lever mechanism, moving the pumping that be rotatedly connected of above-mentioned suture needle and main shaft, above-mentioned need thread take-up lever acts on and passes reaching the standard grade of this suture needle, and supply of reaching the standard grade and tension, above-mentioned up and down lopping device is to make the needlework of choosing the hole that pass aforementioned suture needle and looper thread tubercle up and down form needle tracking to make up and down that looper thread passes round, the pumping synchronously and give line to aforementioned lopping device up and down and catch and move of above-mentioned up and down lopping device driving mechanism and aforementioned needlework, lopping device thread take-up tension lever mechanism acts on looper thread and following looper thread and carries out supply of lopping device and tension up and down, it is characterized in that, aforementioned looper thread thread take-up tension lever mechanism has right thread take-up tension lever that shakes linkedly mutually with following lopping device driving mechanism and the left thread take-up tension lever that shakes linkedly mutually with last lopping device driving mechanism, aforementioned left thread take-up tension lever do the right thread take-up tension lever of ratio of momentum to make momentum big.Like this, because looper thread thread take-up tension lever mechanism has right thread take-up tension lever that shakes linkedly mutually with following lopping device driving mechanism and the left thread take-up tension lever that shakes linkedly mutually with last lopping device driving mechanism, left side thread take-up tension lever do the right thread take-up tension lever of ratio of momentum to make momentum big, so supply and the tension undertaken by left thread take-up tension lever are main, just can not produce those problems that form in the existing example in the needlework coil process.In addition, when pin rises from bottom dead centre, because the situation that the needlework coil before the pin that also can not occur once tightening is pulled out by following looper thread, so needlework are tightened up under low-tension.
Fig. 1 is the view of the expression overlock machine first embodiment major part of the present invention; Fig. 2 is the view of the expression overlock machine second embodiment major part of the present invention; Fig. 3 is the figure of the major part of expression conventional example overlock machine; Fig. 4 is the view of other conventional example overlock machine major parts of expression; Fig. 5 is the view of the overlock machine major part of another conventional example of expression; Fig. 6 is the expression needlework, up and down the stereogram that concerns of looper thread, suture needle and lopping device up and down.
On Fig. 1, overlock machine has: with the moving suture needle (not shown) that moves up and down of being rotatedly connected of main shaft, act on and be through reaching the standard grade in the above-mentioned suture needle, the need thread take-up lever (not shown) of supply of reaching the standard grade and tension, with machine shaft interlock and the last lopping device axle 12 that shakes, the last lopping device rock body 4A that is connected with last lopping device axle 12, be supported on lopping device rock body 4A and go up and wear the last lopping device 4 of going up looper thread 2, the following lopping device axle 14 that shakes linkedly with machine spindle, be linked to down the following lopping device rock body 8A on the lopping device axle 14, be supported on down lopping device rock body 8A and go up and wear the following lopping device 8 of looper thread 6 down, act on these looper threads 2 up and down, 6 and carry out lopping device 4 up and down, 8 lead-in wires and the lopping device thread take-up tension lever mechanism that strains.For forming needle tracking, by suture needle and the motion of lopping device 4,8 up and down, needlework form tubercles with looper thread 2,6 up and down.
Last lopping device axle 12 has constituted with the synchronous upwards lopping device 4 of pumping of needlework and has given the last lopping device driving mechanism of the seizure campaign of needlework.Equally, following lopping device axle 14 has constituted with the synchronously downward lopping device 8 of pumping of needlework and has given the following lopping device driving mechanism of the seizure campaign of needlework.
The thread take-up tension lever 132 that lopping device thread take-up tension lever mechanism 10 has a plurality of line pilot holes 16～26 and is fixed on the following lopping device axle 14 and shakes with this time lopping device axle 14.Be set up in parallel the line hole 38 of looper thread 2 usefulness and the line hole 40 of following looper thread 6 usefulness at the leading section of thread take-up tension lever 132.
Go up the unshowned last looper thread 2 that the looper thread supply source comes of going up by figure, pass line pilot hole 15,16,17 and pass after the line hole 38 of thread take-up tension lever 132, pass line pilot hole 19,20 again through the through wires hole 42 of last lopping device 4.Here, line pilot hole 17 is not subjected to being fixed on the machine frame of lopping device axle 12 rotations with influencing.Equally,, pass line pilot hole 21,22 and pass after the line hole 40 of thread take-up tension lever 132, pass again in the through wires hole 44 of line pilot hole 24,26 through lopping device 8 down from the following looper thread 6 that not shown following looper thread supply source comes.
Thread take-up tension lever 132 together shakes with phase place identical with suture needle and following lopping device axle 14.But also can constitute not and the suture needle same-phase, but under the phase place more Zao, shake than suture needle.
Arrived bottom dead centre in suture needle, when having welcome the peak value of needlework tension force, thread take-up tension lever 132 also arrives top dead-centre, and the tension force of looper thread 2,6 also reaches peak value up and down.In suture needle bottom dead centre when beginning to rise, along with the thread take-up tension lever 132 that reduces of suture needle tension force makes also up and down that the tension force of looper thread 2,6 reduces, thereby form stable needlework coil.Thereby, can obtain not having the stable needle tracking of wire jumper.
In addition, when pin rises from bottom dead centre, owing to the needlework tubercle (46a among Fig. 6) before the pin that does not have once to fasten is pulled out by following looper thread 6, so, also can strain the needlework tubercle even the tension force of needlework reduces.
In the present embodiment, owing to be not to set up two thread take-up tension levers (right thread take-up tension lever and left thread take-up tension lever) in the lopping device thread take-up tension lever mechanism 10 of overlock machine in prior art, but only used a thread take-up tension lever 132, and moving part has reduced, and adjustment becomes easy.
Second embodiment of explanation overlock machine of the present invention in Fig. 2.In this second embodiment, be on left thread take-up tension lever 232 bases of the thread take-up tension lever 132 in being equivalent to first embodiment, be provided with again and be fixed on the last lopping device axle 12 that shakes linkedly with machine spindle and the right thread take-up tension lever 230 that shakes.
From scheming to go up the unshowned last looper thread 2 that the looper thread supply source comes of going up, pass line pilot hole 15,16, wear line hole 231 to thread take-up tension lever 230, pass line hole 38, the line pilot hole 19,20 of left thread take-up tension lever 232 again, in the through wires hole 42 through last lopping device 4.Equally, pass line pilot hole 21,22 from scheming the following looper thread 6 that last unshowned down looper thread supply source comes, pass the line hole 40 of thread take-up tension lever 132 after, passed line pilot hole 24,26 again, in the through wires hole 44 through lopping device 8 down.
In the present embodiment from the center of shaking of right thread take-up tension lever 230 to the distance in line hole 231 than from the center of shaking of left thread take-up tension lever 232 to the line hole 38,40 apart from much shorter, therefore, left thread take-up tension lever 232 do momentum also than right thread take-up tension lever 230 to make momentum big.Like this, the conveying of the looper thread up and down 2,6 of right thread take-up tension lever 230 and amount of tension are also than the conveying of the looper thread up and down 2,6 of left thread take-up tension lever 232 and amount of tension become very little (being not enough to half approximately).Thereby under the present embodiment situation, because the conveying and the tension of left thread take-up tension lever 232 are main, the needlework coil forms middle those problems that produce in the prior art example with regard to not existing.That is, in order to form suitable needlework coil, preferably left thread take-up tension lever do the right thread take-up tension lever of ratio of momentum to make momentum big, be more preferably, left thread take-up tension lever as momentum be right thread take-up tension lever make more than 2 times of momentum.
In illustrative example, right thread take-up tension lever 230 only acts on looper thread 2, but also can constitute: also form the line hole of time looper thread 6 usefulness on the right thread take-up tension lever 230 and also can act on down looper thread 6 except the line hole 231 of last looper thread 2 usefulness.
The present invention also is not limited to the overlock machine of 1 pin, also applicable to the overlock machine of 2 pins, and obtains effect same.
The top has illustrated overlock machine of the present invention based on 2 embodiment shown in the drawings, and the present invention also is not limited to these embodiment, can do various changes within the item scope that Patent right requirement is recorded and narrated.
As inventing according to first, but looper thread thread take-up tension lever mechanism has the single thread take-up tension lever of swing movement, because this thread take-up tension lever and lopping device driving mechanism shake linkedly and act on looper thread and the following looper thread, arrived bottom dead centre in suture needle, when welcoming the peak value of needlework tension force, above-mentioned single thread take-up tension lever also welcomes peak tension; In suture needle bottom dead centre when beginning to rise, thread take-up tension lever makes also up and down that looper thread tension force reduces, thereby forms stable needlework coil.Thereby, can obtain not having the stable needle tracking of wire jumper.In addition, when pin rises from bottom dead centre, owing to can not produce the situation that the needlework tubercle before the pin of once tightening is pulled out by following looper thread, so under the needlework low-tension, be tightened up.Especially, not that 2 thread take-up tension levers (right thread take-up tension lever and left thread take-up tension lever) are set in the lopping device thread take-up tension lever mechanism of overlock machine as prior art; But only used 1 thread take-up tension lever, moving part reduces, and adjusts and becomes easy.
As inventing according to second, because looper thread thread take-up tension lever mechanism has right thread take-up tension lever that shakes linkedly mutually with following lopping device driving mechanism and the left thread take-up tension lever that shakes linkedly mutually with last lopping device driving mechanism, and left thread take-up tension lever do the right thread take-up tension lever of ratio of momentum to make momentum big, so it is main that the conveying of left thread take-up tension lever and tension become, and can not produce the problem during the needlework coil forms in the prior art example again.In addition, owing to can not produce the situation that the needlework tubercle before the pin of once tightening is pulled out by following looper thread, needlework are tightened up with low-tension.
Claims (2)
1. overlock machine, it is that the overlock machine that forms the bound edge needle tracking has suture needle, need thread take-up lever, lopping device, lopping device driving mechanism, lopping device thread take-up tension lever mechanism up and down up and down; Being rotatedly connected moving of wherein above-mentioned suture needle and machine spindle and pumping; Above-mentioned need thread take-up lever acts on and is through reaching the standard grade in this suture needle, supply of reaching the standard grade and tension; The lopping device then makes up and down for needlework in the pinprick that is through aforementioned suture needle and looper thread up and down being carried out tubercle form needle tracking that looper thread passes pinprick up and down; The pumping synchronously and give aforementioned looper thread up and down and catch and move of above-mentioned up and down lopping device driving mechanism and aforementioned needlework; Above-mentioned lopping device thread take-up tension lever mechanism acts on looper thread with following looper thread and carry out the supply and the tension of lopping device up and down; It is characterized in that,
Aforementioned looper thread thread take-up tension lever mechanism has the single thread take-up tension lever that can carry out swing movement, and this thread take-up tension lever and following lopping device driving mechanism be interlock and shake and act on and go up looper thread and following looper thread mutually.
2. overlock machine, it is the overlock machine that forms the bound edge needle tracking, and it has suture needle, need thread take-up lever, lopping device, lopping device driving mechanism, lopping device thread take-up tension lever mechanism up and down up and down, and wherein being rotatedly connected of suture needle and machine spindle moved and pumped; Need thread take-up lever acts on supply of reaching the standard grade and reaching the standard grade and the tension that is through in this suture needle; Above-mentioned up and down lopping device is to make the needlework of choosing the hole that pass aforementioned suture needle and looper thread up and down carry out tubercle to form needle tracking, and making up and down, looper thread passes pinprick; The pumping synchronously and give line to aforementioned lopping device up and down and catch and move of above-mentioned up and down lopping device driving mechanism and aforementioned needlework; Above-mentioned lopping device thread take-up tension lever mechanism acts on looper thread with following looper thread and carry out the supply and the tension of lopping device up and down; It is characterized in that,
Aforementioned looper thread thread take-up tension lever mechanism has right thread take-up tension lever that shakes linkedly mutually with following lopping device driving mechanism and the left thread take-up tension lever that shakes linkedly mutually with last lopping device driving mechanism;
Aforementioned left thread take-up tension lever do the right thread take-up tension lever of ratio of momentum to make momentum big.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18983199 | 1999-07-05 | ||
| JP189831/1999 | 1999-07-05 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1279311A CN1279311A (en) | 2001-01-10 |
| CN1123661C true CN1123661C (en) | 2003-10-08 |
Family
ID=16247952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00120057 Expired - Fee Related CN1123661C (en) | 1999-07-05 | 2000-07-05 | Overseaming stitching machine |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN1123661C (en) |
| TW (1) | TW503283B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108251974B (en) * | 2016-12-28 | 2020-09-18 | 启翔股份有限公司 | High-head column type multi-needle sewing machine |
-
2000
- 2000-07-04 TW TW89113229A patent/TW503283B/en not_active IP Right Cessation
- 2000-07-05 CN CN 00120057 patent/CN1123661C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| TW503283B (en) | 2002-09-21 |
| CN1279311A (en) | 2001-01-10 |
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Granted publication date: 20031008 |