CN204080375U - The shank drives structure of overlock machine - Google Patents
The shank drives structure of overlock machine Download PDFInfo
- Publication number
- CN204080375U CN204080375U CN201420509558.8U CN201420509558U CN204080375U CN 204080375 U CN204080375 U CN 204080375U CN 201420509558 U CN201420509558 U CN 201420509558U CN 204080375 U CN204080375 U CN 204080375U
- Authority
- CN
- China
- Prior art keywords
- shank
- driving shaft
- crank
- shank driving
- needle bar
- 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
- 241001656951 Protheca Species 0.000 claims abstract description 8
- 230000005540 biological transmission Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000009958 sewing Methods 0.000 description 1
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- Sewing Machines And Sewing (AREA)
Abstract
The utility model discloses a kind of shank drives structure of overlock machine, comprise shank drive link, shank driving crank, shank driving shaft, shank driving shaft back-up ring, needle bar crank, shank, one end of shank drive link connects one end of shank driving crank by link pin; The other end of shank driving crank connects shank driving shaft; One end of the front end connecting needle pole crank of shank driving shaft; The other end of needle bar crank connects shank by shank pin; Shank driving shaft is arranged with protheca and rear cover; The two ends of described rear cover are respectively arranged with shank driving shaft back-up ring, and two shank driving shaft back-up rings are locked on shank driving shaft respectively by holding screw, make shank driving shaft relative to the axial location of rear cover.When the utility model can make up needle bar crank screw lock in traditional shank structure, needle bar crank is axially displaced along shank driving shaft, causes the easy card phenomenon of shank, or needle bar crank axially produces the difficult problem in gap along shank driving shaft.
Description
Technical field
The utility model relates to a kind of parts of industrial sewing machines, is specifically related to a kind of shank drives structure of overlock machine.
Background technology
The shank type of drive of existing overlock machine as shown in Figure 1, power is passed to shank power transmission shaft 16A by shank driving crank 8 by shank drive link 10 in the process of moving up and down, shank power transmission shaft 16A is rotated in certain angle, and the rotational power in certain angle to be converted into by needle bar crank 5 and to swing up and down by shank power transmission shaft 16A; Needle bar crank 5 by shank pin 4 by power transmission to shank 2, thus be transferred to moving up and down of shank 2 by swinging up and down power; Wherein, shank driving shaft 16A adopts one end that the axle of jump ring 16B is housed, as shown in Figure 2.
The major drawbacks of this kind of type of drive has:
1, the axial location of shank driving shaft 16A is overlapped after 17 both ends of the surface are close to by shank driving shaft back-up ring 13 and the jump ring 16B that is located at shank driving shaft 16A one end fixedly to complete with holding screw 14 after shank driving shaft.One end due to shank driving shaft 16A is that jump ring 16B locates, and there is certain elasticity and accuracy of manufacture error, the axial location of shank driving shaft 16A can be caused easily to produce axial gap or gap and tighten up rear shank driving shaft 16A and rotate inflexible problem.
2, needle bar crank 5 connects shank driving shaft 16A by screw 6; Easily cause needle bar crank 5 along shank driving shaft 16A axial displacement when screw 6 is locked, dumb when shank 2 is moved up and down in shank cover 3, shank 2 is easily stuck.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of shank drives structure of overlock machine, and it can realize the axial location of shank driving shaft.
For solving the problems of the technologies described above, the technical solution of the shank drives structure of the utility model overlock machine is:
Comprise shank drive link 10, shank driving crank 8, shank driving shaft 16, shank driving shaft back-up ring 13, needle bar crank 5, shank 2, one end of shank drive link 10 connects one end of shank driving crank 8 by link pin 11; The other end of shank driving crank 8 connects shank driving shaft 16; One end of the front end connecting needle pole crank 5 of shank driving shaft 16, needle bar crank 5 is fixedly connected with shank driving shaft 16 by screw 6; The other end of needle bar crank 5 connects shank 2 by shank pin 4; Shank driving shaft 16 is arranged with protheca 7 and rear cover 17, protheca 7 and rear cover 17 are fixed on casing 1; The two ends of described rear cover 17 are respectively arranged with shank driving shaft back-up ring 13, two shank driving shaft back-up rings 13 and are locked on shank driving shaft 16 respectively by holding screw 14,15, make shank driving shaft 16 relative to the axial location of rear cover 17.
First tighten the screw 6 on described needle bar crank 5, make needle bar crank 5 be fixed on shank driving shaft 16; Under the state of shank 2 flexible motion, make shank driving shaft back-up ring 13 be adjacent to the two ends of described rear cover 17, then tighten the holding screw 14,15 on shank driving shaft back-up ring 13, realize the axial location of shank driving shaft 16.
The technique effect that the utility model can reach is:
When the utility model can make up needle bar crank screw lock in traditional shank structure, needle bar crank is axially displaced along shank driving shaft, causes the easy card phenomenon of shank, or needle bar crank axially produces the difficult problem in gap along shank driving shaft.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail:
Fig. 1 is the structural representation of the shank drives structure of prior art overlock machine;
Fig. 2 is the schematic diagram of the shank driving shaft of prior art;
Fig. 3 is the schematic diagram of the shank drives structure of the utility model overlock machine.
Description of reference numerals in figure:
1 is casing, and 2 is shank,
3 is shank cover, and 4 is shank pin,
5 is needle bar crank, and 6 is screw,
7 is protheca, and 8 is shank driving crank,
9 is screw, and 10 is shank drive link,
11 is link pin, and 12 is holding screw,
13 is shank driving shaft back-up ring, and 14,15 is holding screw,
16,16A is shank driving shaft, and 16B is jump ring,
17 is rear cover.
Detailed description of the invention
As shown in Figure 3, the shank drives structure of the utility model overlock machine, comprise shank drive link 10, shank driving crank 8, shank driving shaft 16, shank driving shaft back-up ring 13, needle bar crank 5, shank 2, one end of shank drive link 10 connects one end of shank driving crank 8 by link pin 11; By holding screw 12, link pin 11 is locked in shank drive link 10;
The other end of shank driving crank 8 connects shank driving shaft 16; Shank driving crank 8 is fixedly connected with shank driving shaft 16 by screw 9;
One end of the front end connecting needle pole crank 5 of shank driving shaft 16, needle bar crank 5 is fixedly connected with shank driving shaft 16 by screw 6;
The other end of needle bar crank 5 connects shank 2 by shank pin 4;
Shank 2 is arranged with shank cover 3, shank cover 3 is fixed on casing 1;
Shank driving shaft 16 is arranged with protheca 7 and rear cover 17, protheca 7 and rear cover 17 are fixed on casing 1;
The two ends of rear cover 17 are respectively arranged with shank driving shaft back-up ring 13, two shank driving shaft back-up rings 13 and are locked on shank driving shaft 16 respectively by holding screw 14,15, make shank driving shaft 16 relative to the axial location of rear cover 17.
Operation principle of the present utility model is as follows:
1, first the screw 6 on needle bar crank 5 is tightened, make needle bar crank 5 be fixed on shank driving shaft 16; Now shank driving shaft 16 does not also have axial location, so needle bar crank 5 drives shank 2 can flexible motion in shank cover 3, thus can make up the defect causing needle bar crank 5 to cause shank 2 to block along shank driving shaft 16 axial displacement when tightening screw 6;
2, overlap the two ends of 17 after shank driving shaft back-up ring 13 being adjacent under the state of shank 2 flexible motion, then tighten the holding screw 14,15 on shank driving shaft back-up ring 13, now the axial location of shank driving shaft 16 completes; Axial location due to shank driving shaft 16 is that employing two back-up ring 13 is adjacent to location at the two ends of rear cover 17, and back-up ring 13 manufactures simply, precision easily ensures, and the two ends being distributed in rear cover 17 can freely adjust, so can ensure the axial location of shank driving shaft 16 well and rotate flexibly.
Claims (1)
1. the shank drives structure of an overlock machine, it is characterized in that: comprise shank drive link (10), shank driving crank (8), shank driving shaft (16), shank driving shaft back-up ring (13), needle bar crank (5), shank (2), one end of shank drive link (10) connects one end of shank driving crank (8) by link pin (11); The other end of shank driving crank (8) connects shank driving shaft (16); One end of front end connecting needle pole crank (5) of shank driving shaft (16), needle bar crank (5) is fixedly connected with shank driving shaft (16) by screw (6); The other end of needle bar crank (5) connects shank (2) by shank pin (4);
Shank driving shaft (16) is arranged with protheca (7) and rear cover (17), protheca (7) and rear cover (17) are fixed on casing (1); The two ends of described rear cover (17) are respectively arranged with shank driving shaft back-up ring (13), two shank driving shaft back-up rings (13) are locked on shank driving shaft (16) respectively by holding screw (14,15), make shank driving shaft (16) relative to the axial location of rear cover (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420509558.8U CN204080375U (en) | 2014-09-05 | 2014-09-05 | The shank drives structure of overlock machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420509558.8U CN204080375U (en) | 2014-09-05 | 2014-09-05 | The shank drives structure of overlock machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204080375U true CN204080375U (en) | 2015-01-07 |
Family
ID=52173111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420509558.8U Expired - Fee Related CN204080375U (en) | 2014-09-05 | 2014-09-05 | The shank drives structure of overlock machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204080375U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108265414A (en) * | 2018-03-30 | 2018-07-10 | 吴江市新科缝制设备有限公司 | A kind of needle bar of sewing machine crank balance regulating device |
-
2014
- 2014-09-05 CN CN201420509558.8U patent/CN204080375U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108265414A (en) * | 2018-03-30 | 2018-07-10 | 吴江市新科缝制设备有限公司 | A kind of needle bar of sewing machine crank balance regulating device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150107 |