CN202247298U - Needle bar swing transmission structure of sewing machine - Google Patents
Needle bar swing transmission structure of sewing machine Download PDFInfo
- Publication number
- CN202247298U CN202247298U CN2011203599844U CN201120359984U CN202247298U CN 202247298 U CN202247298 U CN 202247298U CN 2011203599844 U CN2011203599844 U CN 2011203599844U CN 201120359984 U CN201120359984 U CN 201120359984U CN 202247298 U CN202247298 U CN 202247298U
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- China
- Prior art keywords
- needle bar
- crank
- shank
- bar frame
- connecting rod
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- Expired - Fee Related
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Abstract
The utility model discloses a needle bar swing transmission structure of a sewing machine, which comprises a needle bar holder and a needle bar, wherein the needle bar holder is arranged in a machine head, and the needle bar is slidably arranged on the needle bar holder. The upper end of the needle bar holder is rotatably connected with the machine head, a needle bar holder slider for driving the needle bar holder to swing is fixedly arranged at the lower end of the needle bar holder and is connected with a swing shaft component, the swing shaft component comprises a driving swing shaft and a swing shaft crank arranged at the end of the driving swing shaft, an end of the swing shaft crank is connected with a swing driving shaft, and the swing driving shaft is connected with the needle bar holder slider. The needle bar swing transmission structure controls the needle bar to perform sewing between two spaced positions by the aid of the needle bar holder capable of swinging, and has the advantages of simple structure, flexibility in transmission and convenience in operation.
Description
Technical field
The utility model relates to a kind of Sewing machines, specifically a kind of sewing machine needle bar swing drive mechanism.
Background technology
Existing sewing machine need be sewed in position, two places at interval sometimes, as to carry out making of buttonhole be exactly so, needs make the buttonhole stitching at a latasuture of buttonhole earlier, and the opposite side at buttonhole sews the buttonhole stitching then.But existing sewing machine all can't be accomplished making of this spacing distance, during manual operations, again because the bad control of spacing distance can cause the not of uniform size of buttonhole to cause.
Summary of the invention
The utility model technical problem to be solved is to above-mentioned prior art present situation; And provide a kind of sewing machine needle bar to swing drive mechanism; After eedle has been sewed a place; Can make shank swing to an other place automatically and sew again, both guarantee the uniformity of two place's sewing position distances, avoid manual operations again.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: a kind of sewing machine needle bar swing drive mechanism; Comprise the needle bar frame that is arranged in the head, be slidingly arranged in the shank on the needle bar frame; The needle bar frame upper end is rotationally connected with head, and the lower end of needle bar frame fixedly installs the needle bar frame slide block that is useful on the swing of driving needle bridge; The needle bar frame slide block is connected with the balance staff assembly, and the balance staff assembly comprises the driving balance staff, is arranged on the balance staff crank that drives the balance staff end, and the end of balance staff crank is connected with the wobble drive axle, and the wobble drive axle is connected with the needle bar frame slide block.
For optimizing technique scheme, the utility model also comprises following improved technical scheme.
The top of above-mentioned head is shaped on installing hole, is set with the needle bar frame connecting axle in the installing hole; The upper end of needle bar frame is shaped on axle sleeve, and axle sleeve and needle bar frame connecting axle are rotatably assorted.
The sidewall of above-mentioned needle bar frame lower end is shaped on the slide block lug, is installed with the needle bar frame pressing plate at the inwall of head, and the slide block lug is slidingly arranged between needle bar frame pressing plate and the head inwall, and slide block lug surface is shaped on oil groove.
One side of above-mentioned needle bar frame is shaped on needle bar hole longitudinally, is set with the shank axle sleeve that matches with shank in the needle bar hole; Shank is slidingly arranged in the shank axle sleeve, on shank, is set with the shank adapter sleeve, and the shank adapter sleeve is connected with needle bar drive device.
Above-mentioned needle bar drive device comprises the main shaft that is connected with actuating unit, the needle bar crank that is connected with spindle nose, the driving crank that is connected with the end of needle bar crank; The connecting rod crank that is connected with the end of driving crank; The shank connecting rod crank that is connected with the end of connecting rod crank, the end of shank connecting rod crank is connected with the protruding axle of shank adapter sleeve; The end of connecting rod crank is slidingly matched with the vertical chute that fixedly installs.
Be set with first guide plate and second guide plate in the above-mentioned head; Vertically chute is arranged at respectively on first guide plate and second guide plate; In vertical chute of first guide plate, slide and be provided with first guide runner, sliding in vertical chute of second guide plate is provided with second guide runner; The end of connecting rod crank is arranged between first guide runner and second guide runner through the slide block axle.
The end of above-mentioned needle bar crank is connected with thread take-up crank, and head rotates and is provided with line-choosing connecting rod, and the movable end of line-choosing connecting rod and the end of thread take-up crank are rotationally connected, and are set with thread take-up tension lever in the end of thread take-up crank.
Compared with prior art, the shank of the utility model swing drive mechanism through the needle bar frame that can swing, is controlled shank and is sewed in the position at interval, two places.The upper end and the head of needle bar frame are rotationally connected, and the lower end of needle bar frame fixedly installs the needle bar frame slide block that is useful on the swing of driving needle bridge.The needle bar frame slide block is connected with the balance staff assembly, and the balance staff assembly comprises the driving balance staff, drives balance staff and drives balance staff crank and wobble drive axle, and needle bar frame is swung around its needle bar frame connecting axle in certain interval.When needle bar frame was positioned at diverse location, needle bar drive device can both drive shank and move up and down and sew.The shank swing drive mechanism of the utility model after eedle has been sewed a place, can make shank swing to an other place automatically and sew, has both guaranteed the uniformity of two place's sewing position distances, has avoided manual operations again.
Description of drawings
Fig. 1 is the perspective view of the utility model embodiment.
Fig. 2 is the assembly structure sketch map of the utility model and head.
Fig. 3 is the assembling decomposing schematic representation of the utility model embodiment.
The specific embodiment
Embodiment to the utility model describes in further detail below in conjunction with accompanying drawing.
Fig. 1 is extremely shown in Figure 3 to be the structural representation of the utility model.
Reference numeral wherein is: needle bar frame 1; Axle sleeve 1a; Slide block lug 1b; Needle bar frame slide block 11; Needle bar frame connecting axle 12; Needle bar frame pressing plate 13; Shank 2; Shank axle sleeve 21; Shank adapter sleeve 22; Head 3; Drive balance staff 41; Balance staff crank 42; Wobble drive axle 43; Main shaft 51; Needle bar crank 52; Driving crank 53; Connecting rod crank 54; Shank connecting rod crank 55; Slide block axle 56; Thread take-up crank 57; Thread take-up tension lever 57a; Line-choosing connecting rod 58; Vertical chute 6; First guide plate 61; Second guide plate 62; First guide runner 63; Second guide runner 64.
As shown in Figure 1, a kind of sewing machine needle bar swing drive mechanism of the utility model comprises the needle bar frame 1 that is arranged in the head 3, is slidingly arranged in the shank 2 on the needle bar frame 1.
The lower end of needle bar frame 1 fixedly installs the needle bar frame slide block 11 that is useful on 1 swing of driving needle bridge.Needle bar frame slide block 11 is connected with the balance staff assembly, and the balance staff assembly comprises driving balance staff 41, is arranged on the balance staff crank 42 that drives balance staff 41 ends, and the end 42a of balance staff crank 42 is connected with wobble drive axle 43, and wobble drive axle 43 is connected with needle bar frame slide block 11.
Sidewall in needle bar frame 1 lower end is shaped on slide block lug 1b, is installed with needle bar frame pressing plate 13 at the inwall of head 3.Slide block lug 1b is slidingly arranged between needle bar frame pressing plate 13 and head 3 inwalls, and when needle bar frame 1 swing, 1b leads by the slide block lug.The surface of matching with needle bar frame pressing plate 13 at slide block lug 1b can be shaped on oil groove.
Side at needle bar frame 1 is shaped on needle bar hole longitudinally, is set with the shank axle sleeve 21 that matches with shank 2 in the needle bar hole.Shank 2 is slidingly arranged in the shank axle sleeve 21, on shank 2, is set with shank adapter sleeve 22.Shank adapter sleeve 22 is connected with needle bar drive device, drives shank 2 by needle bar drive device through shank adapter sleeve 22 and moves up and down, and sews.
As shown in Figure 3; Needle bar drive device comprises the main shaft 51 that is connected with actuating unit, the needle bar crank 52 that is connected with main shaft 51 ends, the driving crank 53 that is connected with the end 52a of needle bar crank 52; The connecting rod crank 54 that is connected with the end 53a of driving crank 53; With the shank connecting rod crank 55 that the end 54a of connecting rod crank 54 is connected, the end 55a of shank connecting rod crank 55 is connected with the protruding axle 22a of shank adapter sleeve 22.The end 54a of connecting rod crank 54 is slidingly matched with the vertical chute 6 that fixedly installs.
In head 3, be set with first guide plate 61 and second guide plate 62, vertical chute 6 of present embodiment is arranged at respectively on first guide plate 61 and second guide plate 62.Vertical chute 6 interior slips that are provided with first guide runner, 63, the second guide plates 62 of in vertical chute 6 of first guide plate 61, sliding are provided with second guide runner 64.The end 54a of connecting rod crank 54 is arranged between first guide runner 63 and second guide runner 64 through slide block axle 56, can with first guide runner 63 and second guide runner 64 longitudinally chute 6 move up and down.
52a also is connected with thread take-up crank 57 in the end of needle bar crank 52.Head 3 rotates and is provided with line-choosing connecting rod 58.The link of line-choosing connecting rod 58 and head 3 inwalls are rotationally connected, and the end 57a of movable end 58a and thread take-up crank 57 is rotationally connected, and 57a is set with thread take-up tension lever 57b in the end of thread take-up crank 57.When main shaft 51 drove needle bar cranks 52 rotations, the end 52a of needle bar crank 52 drove thread take-up crank 57 motions, the end 57a of thread take-up crank 57 line-choosing connecting rod 58 spacing down, the thread take-up tension lever 57b of its end 57a can make bob.
The most preferred embodiment of the utility model is illustrated, and various variations of being made by those of ordinary skills or remodeling can not break away from the scope of the utility model.
Claims (7)
1. a sewing machine needle bar is swung drive mechanism; Comprise the needle bar frame (1) that is arranged in the head (3), be slidingly arranged in the shank (2) on the needle bar frame (1); It is characterized in that: described needle bar frame (1) upper end is rotationally connected with head (3), and the lower end of needle bar frame (1) fixedly installs the needle bar frame slide block (11) that is useful on driving needle bridge (1) swing; Described needle bar frame slide block (11) is connected with the balance staff assembly; Described balance staff assembly comprises driving balance staff (41); Be arranged on the balance staff crank (42) that drives balance staff (41) end; The end (42a) of described balance staff crank (42) is connected with wobble drive axle (43), and described wobble drive axle (43) is connected with described needle bar frame slide block (11).
2. a kind of sewing machine needle bar swing drive mechanism according to claim 1, it is characterized in that: the top of said head (3) is shaped on installing hole, is set with needle bar frame connecting axle (12) in the described installing hole; The upper end of said needle bar frame (1) is shaped on axle sleeve (1a), and described axle sleeve (1a) is rotatably assorted with needle bar frame connecting axle (12).
3. a kind of sewing machine needle bar swing drive mechanism according to claim 2; It is characterized in that: the sidewall of said needle bar frame (1) lower end is shaped on slide block lug (1b); Inwall at said head (3) is installed with needle bar frame pressing plate (13); Described slide block lug (1b) is slidingly arranged between needle bar frame pressing plate (13) and head (3) inwall, and described slide block lug (1b) surface is shaped on oil groove.
4. according to the described a kind of sewing machine needle bar swing drive mechanism of the arbitrary claim of claim 1 to 3; It is characterized in that: a side of said needle bar frame (1) is shaped on needle bar hole longitudinally, is set with the shank axle sleeve (21) that matches with shank (2) in the described needle bar hole; Described shank (2) is slidingly arranged in the described shank axle sleeve (21), on shank (2), is set with shank adapter sleeve (22), and described shank adapter sleeve (22) is connected with needle bar drive device.
5. a kind of sewing machine needle bar swing drive mechanism according to claim 4; It is characterized in that: described needle bar drive device comprises the main shaft (51) that is connected with actuating unit, the needle bar crank (52) that is connected with main shaft (51) end, the driving crank (53) that is connected with the end (52a) of needle bar crank (52); The connecting rod crank (54) that is connected with the end (53a) of driving crank (53); With the shank connecting rod crank (55) that the end (54a) of connecting rod crank (54) is connected, the end (55a) of said shank connecting rod crank (55) is connected with the protruding axle (22a) of said shank adapter sleeve (22); The end (54a) of described connecting rod crank (54) is slidingly matched with the vertical chute (6) that fixedly installs.
6. a kind of sewing machine needle bar swing drive mechanism according to claim 5; It is characterized in that: be set with first guide plate (61) and second guide plate (62) in the described head (3); Described vertical chute (6) is arranged at respectively on first guide plate (61) and second guide plate (62); In vertical chute (6) of first guide plate (61), slide and be provided with first guide runner (63), sliding in vertical chute (6) of second guide plate (62) is provided with second guide runner (64); The end (54a) of said connecting rod crank (54) is arranged between first guide runner (63) and second guide runner (64) through slide block axle (56).
7. a kind of sewing machine needle bar swing drive mechanism according to claim 6; It is characterized in that: the end (52a) of described needle bar crank (52) is connected with thread take-up crank (57); Described head (3) rotates and is provided with line-choosing connecting rod (58); The movable end (58a) of line-choosing connecting rod (58) is rotationally connected with the end (57a) of thread take-up crank (57), is set with thread take-up tension lever (57b) in the end of said thread take-up crank (57) (57a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203599844U CN202247298U (en) | 2011-09-23 | 2011-09-23 | Needle bar swing transmission structure of sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203599844U CN202247298U (en) | 2011-09-23 | 2011-09-23 | Needle bar swing transmission structure of sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202247298U true CN202247298U (en) | 2012-05-30 |
Family
ID=46108564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203599844U Expired - Fee Related CN202247298U (en) | 2011-09-23 | 2011-09-23 | Needle bar swing transmission structure of sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202247298U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105970504A (en) * | 2016-05-24 | 2016-09-28 | 无锡鼎昌包装科技有限公司 | Label packaging sewing machine transmission structure |
| CN106149226A (en) * | 2015-04-15 | 2016-11-23 | 池州市旭豪机械有限公司 | A kind of sewing machine needle telecontrol equipment |
-
2011
- 2011-09-23 CN CN2011203599844U patent/CN202247298U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106149226A (en) * | 2015-04-15 | 2016-11-23 | 池州市旭豪机械有限公司 | A kind of sewing machine needle telecontrol equipment |
| CN105970504A (en) * | 2016-05-24 | 2016-09-28 | 无锡鼎昌包装科技有限公司 | Label packaging sewing machine transmission structure |
| CN105970504B (en) * | 2016-05-24 | 2018-10-30 | 无锡鼎昌包装科技有限公司 | A kind of label packaging sewing machine drive structure |
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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: 20120530 Termination date: 20190923 |