CN203668636U - Cloth feeding mechanism for sewing machine - Google Patents
Cloth feeding mechanism for sewing machine Download PDFInfo
- Publication number
- CN203668636U CN203668636U CN201320885518.9U CN201320885518U CN203668636U CN 203668636 U CN203668636 U CN 203668636U CN 201320885518 U CN201320885518 U CN 201320885518U CN 203668636 U CN203668636 U CN 203668636U
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- Prior art keywords
- cloth feeding
- tooth
- shaft
- crank
- crankshaft
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- Expired - Fee Related
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- 239000004744 fabric Substances 0.000 title claims abstract description 65
- 230000007246 mechanism Effects 0.000 title claims abstract description 20
- 238000009958 sewing Methods 0.000 title claims abstract description 20
- 239000011435 rock Substances 0.000 claims description 22
- 230000033001 locomotion Effects 0.000 description 7
- 150000001875 compounds Chemical class 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 206010053615 Thermal burn Diseases 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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- Sewing Machines And Sewing (AREA)
Abstract
The utility model relates to the technical field of sewing machine mechanisms, in particular to a cloth feeding mechanism for a sewing machine. The cloth feeding mechanism for the sewing machine solves the problems that potential safety risks exist, cost is high and working efficiency is high in the prior art. The cloth feeding mechanism for the sewing machine comprises a cloth feeding shaft, a tooth carrying shaft, a cloth feeding crankshaft, a first tooth frame, a second tooth frame, a first cloth feeding tooth and a second cloth feeding tooth. The cloth feeding crankshaft comprises double driving ends which are perpendicular and symmetrically arranged in the angle of 180 degrees. The cloth feeding mechanism for the sewing machine is characterized by further comprising a tooth carrying crankshaft. The cloth feeding shaft and the cloth feeding crankshaft linked with the cloth feeding shaft are located in the front of the cloth feeding direction. The tooth carrying shaft is an oscillating shaft and located in the rear of the cloth feeding direction. The tooth carrying crankshaft is of double crankshaft structures which are arranged in the cloth feeding direction in the angle of 180 degrees. The middle of the tooth carrying crankshaft is linked with the tooth carrying shaft. An end of a first tooth frame is connected with the front crankshaft structure through a first tooth carrying connection rod. An end of a second tooth frame is connected with the rear crankshaft structure through a second tooth carrying connection rod.
Description
Technical field
The utility model relates to Sewing machines mechanism technical field, is specifically related to a kind of use in sewing machine cloth feeding mechanism.
Background technology
Be in the patent of " 2012200223171 " in the patent No., disclose a kind of continuous cloth feeding mechanism for sewing machine, this continuous cloth feeding mechanism comprises that cloth pushing shaft, feed lifting rock shaft, cloth feeding crank, the first retainer, the second retainer, the first feed dog, the second feed dog, first lift tooth connecting rod, second and lift tooth connecting rod and tooth lifting cam.Described tooth lifting cam is to be 180 ° of symmetrically arranged double-cam structures, is provided with first and lifts tooth connecting rod and second and lift tooth connecting rod on tooth lifting cam, comprises the vertical 180 ° of symmetrically arranged double end drive ends that are on described cloth feeding crank; The first retainer is arranged at drive end and first of cloth feeding crank and lifts between the motion end of tooth connecting rod, the second retainer is arranged at another drive end and second of cloth feeding crank and lifts between the motion end of tooth connecting rod, and the second feed dog is arranged on the second retainer and with the first feed dog and be arranged in parallel.Described cloth pushing shaft and the cloth feeding crank connecting are with it positioned at the rear portion of cloth feeding direction, and described feed lifting rock shaft is that rotating shaft is positioned at cloth feeding direction front portion.In actual use, find, the problem of this kind of structure existence is: 1, adopt cam link mechanism, in lubricated inadequate situation, very easily heating, can scald operating personnel, exists potential safety hazard; 2, part manufacturing cost is high, causes this infrastructure cost high, is difficult for promoting; 3, often need inspection lubricated, cause operating efficiency to reduce.
Summary of the invention
The utility model provides a kind of use in sewing machine cloth feeding mechanism, has a high and ineffective problem of potential safety hazard, cost with what overcome that prior art exists.
The problem existing for overcoming prior art, the utility model provides a kind of use in sewing machine cloth feeding mechanism, comprise cloth pushing shaft, feed lifting rock shaft, cloth feeding crank, the first retainer, the second retainer, the first feed dog and the second feed dog, on described cloth feeding crank, comprise the vertical 180 ° of symmetrically arranged double end drive ends that are, it is characterized in that: also comprise feed lifting rock shaft crank, described cloth pushing shaft and the cloth feeding crank connecting are with it positioned at the front portion of cloth feeding direction, described feed lifting rock shaft is swinging axle and the rear portion that is positioned at cloth feeding direction, described feed lifting rock shaft crank is the double-crank structure that is 180 ° of settings along cloth feeding direction, its middle part connects with feed lifting rock shaft, the first retainer end is lifted tooth connecting rod by first and is connected with anterior crank structure, the second retainer end is lifted tooth connecting rod by second and is connected with the crank structure at rear portion.
Cloth feeding mechanism provided by the utility model is the compound motion of lower cloth feeding mechanism and Needle cloth-feeding mechanism, and compared with prior art, its advantage is:
1, no matter pin is upper or pin is the next, and feed dog is alternately positioned at needle plate top, can ensure mild continuous work feed, improves work feed quality;
2, feeding is more level and smooth, and thread tension can reduce by 30%, is widely used in various sewings, is more suitable for making of thin material, can realize the sewing of high-quality.
3, it goes without doing changes for the other parts of Sewing machines, only need to expand the opening on needle plate, and the first feed dog and the second feed dog can be arranged in the inner.It is little that equipment is changed cost, suitable popularization.
4, use toggle to make lubricated more abundant, be difficult for heating, fundamentally removed the hidden danger that can cause personnel to injure.
5, low cost of manufacture, the price of whole mechanism is compared original structure and has been declined 30%, and application range of products is more extensive, can meet different customer demands.
6, do not need regularly to check lubricated, ensured the continuity of work, therefore operating efficiency is improved.
Brief description of the drawings
Fig. 1 is structure diagram of the present utility model;
Fig. 2 is working state structure figure of the present utility model.
Description of reference numerals is as follows:
1-cloth pushing shaft, 2-feed lifting rock shaft, 3-cloth feeding crank, 4-lift tooth connecting rod, 5-feed lifting rock shaft crank, 6-the first retainer, 7-the first feed dog, 8-second and lift tooth connecting rod, 9-the second retainer, 10-the second feed dog, 11-needle plate, 12-presser feet.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in detail.
Referring to Fig. 1, a kind of use in sewing machine cloth feeding mechanism, comprise cloth pushing shaft 1, feed lifting rock shaft 2, cloth feeding crank 3, the first retainer 6, the second retainer 9, the first feed dog 7 and the second feed dog 10, on described cloth feeding crank 3, comprise the vertical 180 ° of symmetrically arranged double end drive ends that are, it is characterized in that: also comprise feed lifting rock shaft crank 5, described cloth pushing shaft 1 and the cloth feeding crank 3 connecting are with it positioned at the front portion of cloth feeding direction, described feed lifting rock shaft 2 is swinging axle and the rear portion that is positioned at cloth feeding direction, described feed lifting rock shaft crank 5 is the double-crank structures (being positioned at the rear portion of cloth feeding direction) that are 180 ° of settings along cloth feeding direction, its middle part connects with feed lifting rock shaft 2, the first retainer 6 ends are lifted tooth connecting rod 4 by first and are connected with anterior crank structure, the second retainer 9 ends are lifted tooth connecting rod 8 by second and are connected with the crank structure at rear portion.
Referring to Fig. 2, the first feed dog 7 and the second feed dog 10 are arranged in the opening of needle plate 11, presser feet 12 be arranged at the first feed dog 7 and the second feed dog 10 directly over.
The course of work of the present utility model is:
Cloth pushing shaft 1 swings, drive the first retainer 6 and the second retainer 9 swings by cloth feeding crank 3, feed lifting rock shaft 2 swings and drives feed lifting rock shaft crank 5 to swing, 5 two drive ends of feed lifting rock shaft crank drive two and lift tooth connecting rod 4,8 up-down alternative motions, thereby the first retainer 6, the second retainer 9 alternately move up and down, the first retainer 6, the second retainer 9 front and back upper and lower (compound motion) drive the first feed dog 7, the second feed dog 10 compound motions.
The eedle simultaneously swing that pumps, the first feed dog 7 and the second feed dog 10 do sub-elliptical motion, when needle plate stings cloth, be with the first feed dog 7(pin hole feed dog when eedle enters) upwards push down sewing with presser feet 12 together with work feed, in the time that eedle moves to needle plate top, the outer feed dog of the second feed dog 10() move upward start to push down sewing with presser feet 12 together with work feed, realize continuous work feed, because work feed is continuously without rising and falling, sewing quality improves greatly.
Claims (1)
1. a use in sewing machine cloth feeding mechanism, comprise cloth pushing shaft (1), feed lifting rock shaft (2), cloth feeding crank (3, the first retainer (6), the second retainer (9), the first feed dog (7) and the second feed dog (10), on described cloth feeding crank (3), comprise the vertical 180 ° of symmetrically arranged double end drive ends that are, it is characterized in that: also comprise feed lifting rock shaft crank (5), described cloth pushing shaft (1) and the cloth feeding crank (3) connecting are with it positioned at the front portion of cloth feeding direction, described feed lifting rock shaft (2) is swinging axle and the rear portion that is positioned at cloth feeding direction, described feed lifting rock shaft crank (5) is the double-crank structure that is 180 ° of settings along cloth feeding direction, its middle part connects with feed lifting rock shaft (2), the first retainer (6) end is lifted tooth connecting rod (4) by first and is connected with anterior crank structure, the second retainer (9) end is lifted tooth connecting rod (8) by second and is connected with the crank structure at rear portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320885518.9U CN203668636U (en) | 2013-12-31 | 2013-12-31 | Cloth feeding mechanism for sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320885518.9U CN203668636U (en) | 2013-12-31 | 2013-12-31 | Cloth feeding mechanism for sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203668636U true CN203668636U (en) | 2014-06-25 |
Family
ID=50964952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320885518.9U Expired - Fee Related CN203668636U (en) | 2013-12-31 | 2013-12-31 | Cloth feeding mechanism for sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203668636U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103710890A (en) * | 2013-12-31 | 2014-04-09 | 西安标准工业股份有限公司 | Cloth feed mechanism for sewing machine |
| WO2021184647A1 (en) * | 2020-03-19 | 2021-09-23 | 杰克缝纫机股份有限公司 | Feed lifting rock trimming assembly and sewing machine comprising same |
-
2013
- 2013-12-31 CN CN201320885518.9U patent/CN203668636U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103710890A (en) * | 2013-12-31 | 2014-04-09 | 西安标准工业股份有限公司 | Cloth feed mechanism for sewing machine |
| WO2021184647A1 (en) * | 2020-03-19 | 2021-09-23 | 杰克缝纫机股份有限公司 | Feed lifting rock trimming assembly and sewing machine comprising same |
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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 |
Granted publication date: 20140625 |