CN2769285Y - Cam structure improvement for driving thread take-up mechanism for sewing machine - Google Patents
Cam structure improvement for driving thread take-up mechanism for sewing machine Download PDFInfo
- Publication number
- CN2769285Y CN2769285Y CN 200520055436 CN200520055436U CN2769285Y CN 2769285 Y CN2769285 Y CN 2769285Y CN 200520055436 CN200520055436 CN 200520055436 CN 200520055436 U CN200520055436 U CN 200520055436U CN 2769285 Y CN2769285 Y CN 2769285Y
- Authority
- CN
- China
- Prior art keywords
- cam
- ring sleeve
- thread take
- sewing machine
- ring set
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000007246 mechanism Effects 0.000 title claims abstract description 16
- 238000009958 sewing Methods 0.000 title claims abstract description 10
- 230000006872 improvement Effects 0.000 title claims abstract description 8
- 230000033001 locomotion Effects 0.000 abstract description 9
- 230000008901 benefit Effects 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 230000008569 process Effects 0.000 abstract description 2
- 238000005299 abrasion Methods 0.000 abstract 1
- 238000009954 braiding Methods 0.000 abstract 1
- 230000009471 action Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000009940 knitting Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 210000002318 cardia Anatomy 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
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- Sewing Machines And Sewing (AREA)
Abstract
The utility model relates to the technical field of a braiding machine, particularly a cam structure improvement of a driving thread take-up mechanism for a sewing machine, which is characterized in that an inner pad of an annular groove of a cam is provided with a ring sleeve which is in the same shape and a curved track used for the movement of a small bearing connected with a rocking arm is arranged in the ring sleeve. Therefore, the small bearing just contact the ring sleeve in the movement process and does not contact the cam. The corresponding friction of the cam is reduced, and the material of the ring sleeve is correspondingly softer. The noise of the mechanism movement is small. The abrasion of the small bearing and the cam are correspondingly reduced, and the service life is lengthened. The utility model has another advantage that the ring sleeve and the cam are movably combined, therefore the ring sleeve can be replaced conveniently and the requirement for increasing the productivity is met.
Description
Technical field:
The utility model relates to the weaving machinery technical field, refers in particular to the cam structure improvement of the driving thread take-up mechanism of sewing machine.
Background technology:
Sewing machine is a machinery of sewing up the sweater sweater, and the action of the combined type up and down of its thread take-up mechanism is to lean on two little bearings of curve fitting of the cannelure on the cam medial and lateral to drive inside and outside rocking arm swing, drives by mechanisms such as connecting rods again.The action accuracy requirement of thread take-up mechanism is high, otherwise stitching work be easy to produce as have an injection, phenomenons such as wire jumper, foaming.Because little bearing stretches into motion in the cam cannelure, so the inside and outside surface accuracy of the cannelure of cam also requires very high; On the other hand, little bearing rolls in groove, and bearing can not have very big gap again flexibly with should rotating cooperating of cam cannelure, otherwise the noise will cause motion the time, even can't work, so this transmission mechanism has just become the cardia of entire machine.In the prior art, little bearing stretches in the cannelure of cam directly the madial wall touch scrolling with the cam annular groove, and the time one is grown, and the phenomenon of wearing and tearing is arranged naturally, thus change also more or less the movement locus of little bearing, have influence on the quality of stitching.In order to guarantee the quality of knitting, generally have to change new little bearing and cam, and that the shortcoming that this mode exists is exactly dismounting is loaded down with trivial details, the cost height, the competitiveness of product in market is low.
Summary of the invention:
The purpose of this utility model is to overcome the defective of prior art, and a kind of cam structure improvement of driving thread take-up mechanism of sewing machine is provided, and it is simple in structure, and it is convenient to replace, and cost is low.
For achieving the above object, the utility model comprises the cam that the outside is equipped with cannelure in, fills up the ring set that is provided with shape in the cannelure of this cam, and the curve track for the little bearing movable that connects rocking arm is arranged in the ring set.
The plastic parts that described ring set is formed in one, its with cam between for movable nested the connection.
After adopting such structure, little bearing movable process just contacts with ring set, does not touch cam, reduces the relative friction of cam, and the material of ring set is softer relatively, and the wearing and tearing that slow down little bearing and cam increase the service life.
Another advantage of the present utility model is to make up for movable between ring set and the cam, can be convenient to replace ring set, satisfies the requirement of boosting productivity.
Description of drawings:
Accompanying drawing 1 is the utility model schematic perspective view;
Accompanying drawing 2 is the utility model perspective exploded view;
Accompanying drawing 3 is a user mode schematic diagram of the present utility model.
The specific embodiment:
See shown in the accompanying drawing 1～3 that be equipped with the cam 10 of cannelure 11 outside the utility model comprises in one, cam 10 is installed on the output shaft 30 of main frame, the inside and outside both sides of cam 10 are provided with a pair of Rocker arm 40, and Rocker arm 40 drives thread take-up mechanism by structures such as connecting rods.Pad is provided with the ring set 20 with shape in the cannelure 11 of cam 10, and the curve track 21 for little bearing 41 motions that connect Rocker arm 40 is arranged in the ring set 20.The plastic parts that ring set 20 is formed in one, ring set 20 shown in the present embodiment has inside loop and outside loop, its with cam 10 between for movable nested the connection, the outer shroud pad is located on the outer sidewall of cam 10 cannelures 11, and interior ring pad is located on the inner sidewall of cam 10 cannelures 11.
Shown in Figure 3, the little bearing 41 that connects Rocker arm 40 during use stretches in the cannelure 11 of cam 10, at this moment owing to fill up the ring set 20 that is provided with shape in the cannelure 11, little bearing 41 directly contacts ring set 20, and motion in the curve track 21 that ring set 20 provides, thereby reduced or remitted the direct friction of little bearing 41 and cam 10, the noise of mechanism's running is little, and reduce mutual wearing and tearing, increase the service life.Even wearing and tearing appear in ring set 20, also replace very easily, improve the motion of mechanism precision, thereby improve the quality of knitting.
Certainly; the embodiment of the above only is preferred embodiment of the present utility model; be not to limit practical range of the present utility model,, all should be covered by in the protection domain of the present utility model so the equivalence that all shapes according to the utility model, structure and principle are done changes with this.
Claims (3)
1, the cam structure of the driving thread take-up mechanism of sewing machine improvement, be equipped with the cam (10) of cannelure (11) outside comprising in one, it is characterized in that: pad is provided with the ring set (20) with shape in the cannelure (11) of described cam (10), and the curve track (21) for the little bearing movable that connects rocking arm is arranged in the ring set (20).
2, the cam structure of the driving thread take-up mechanism of sewing machine according to claim 1 improvement is characterized in that: between described ring set (20) and the cam (10) is movable nested the connection.
3, the cam structure of the driving thread take-up mechanism of sewing machine according to claim 1 and 2 improvement is characterized in that: the plastic parts that described ring set (20) is formed in one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520055436 CN2769285Y (en) | 2005-03-11 | 2005-03-11 | Cam structure improvement for driving thread take-up mechanism for sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520055436 CN2769285Y (en) | 2005-03-11 | 2005-03-11 | Cam structure improvement for driving thread take-up mechanism for sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2769285Y true CN2769285Y (en) | 2006-04-05 |
Family
ID=36690363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520055436 Expired - Fee Related CN2769285Y (en) | 2005-03-11 | 2005-03-11 | Cam structure improvement for driving thread take-up mechanism for sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2769285Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102454069A (en) * | 2010-10-29 | 2012-05-16 | 吴江东益纺织有限公司 | Stitch driving device of dial linking machine |
-
2005
- 2005-03-11 CN CN 200520055436 patent/CN2769285Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102454069A (en) * | 2010-10-29 | 2012-05-16 | 吴江东益纺织有限公司 | Stitch driving device of dial linking machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20090213 Address after: Guangdong city of Dongguan province Dalang Yang GUUAM Shiling No. 168, zip code: 523770 Patentee after: Dongguan Fengshen Knitting Machine Co., Ltd. Address before: Guangdong city of Dongguan province Dalang Yang GUUAM Shiling No. 168, zip code: 523770 Patentee before: Lan Haiyan |
|
| ASS | Succession or assignment of patent right |
Owner name: DONGGUAN CITY FENGSHEN MACHINE CO., LTD. Free format text: FORMER OWNER: LAN HAIYAN Effective date: 20090213 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060405 Termination date: 20100311 |