CN202492694U - Needle bar transmission structure of eyelet buttonhole sewing machine - Google Patents
Needle bar transmission structure of eyelet buttonhole sewing machine Download PDFInfo
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- CN202492694U CN202492694U CN 201220065631 CN201220065631U CN202492694U CN 202492694 U CN202492694 U CN 202492694U CN 201220065631 CN201220065631 CN 201220065631 CN 201220065631 U CN201220065631 U CN 201220065631U CN 202492694 U CN202492694 U CN 202492694U
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- shank
- crank connecting
- connecting link
- axle
- crank
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- 238000009958 sewing Methods 0.000 title claims abstract description 22
- 230000005540 biological transmission Effects 0.000 title abstract 4
- 230000001360 synchronised effect Effects 0.000 claims abstract description 7
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
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Abstract
The utility model discloses a needle bar transmission structure of an eyelet buttonhole sewing machine. The needle bar transmission structure comprises a machine head, in which an upper shaft capable of rotating is arranged, wherein the front end of the upper shaft is fixedly connected with an upper shaft crank; a needle bar capable of longitudinally moving is arranged at the front part of the machine head; the needle bar is connected with a crank connecting bar seat; the crank connecting bar seat is arranged in the machine head in a longitudinally sliding way; and a crank connecting bar is arranged above the crank connecting bar seat and connected with the upper shaft crank by a crankshaft. According to the utility model, the upper shaft is driven by a synchronous belt to rotate, and the upper shaft converts the rotational motion into up-and-down motion of the crank connecting bar seat through the upper shaft crank, the crankshaft and the crank connecting bar, so as to drive the needle bar to work. The crank connecting bar seat is arranged between two guiding slide blocks in a sliding way, slide bars and slide blocks on the two sides of the crank connecting bar seat respectively match with a guiding slide groove, and the slide bars on the two sides are respectively connected with a connecting fork seat of the crank connecting bar; therefore, the needle bar transmission structure of the eyelet buttonhole sewing machine, disclosed by the utility model, has the advantages of simple structure as well as convenience and flexibility in connection.
Description
Technical field
The utility model relates to a kind of round end button holing sewing machine, specifically the shank drive mechanism of eyelet buttonhole sewing machine.
Background technology
Existing round end button holing sewing machine comprises Sewing machines support and the head that is positioned at Sewing machines support top, is provided with the shank that can move up and down at the front end of head.In the support of Sewing machines, on position under the eedle, be provided with and adorning two loopers and the curved needle seat structure that makes these looper actions.The following synchronized movement of two loopers of curved needle seat and eedle ground moves, thereby interactively on machining cloth, forms stitching with suture needle.The shank drive mechanism of existing round end button holing sewing machine is complicated, is difficult for installing and debugging, haves much room for improvement.
Summary of the invention
The utility model technical problem to be solved is to above-mentioned prior art present situation, and the shank drive mechanism of eyelet buttonhole sewing machine is provided.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: the shank drive mechanism of eyelet buttonhole sewing machine, comprise head, and be provided with the axle of going up that can rotate in the head, the front end of last axle is fixedly connected with the axle crank; The front portion of head is provided with the shank of ability lengthwise movement, and shank is connected with the crank connecting link seat; The longitudinal sliding motion of crank connecting link seat is arranged in the head, above the crank connecting link seat, is provided with crank connecting link, and crank connecting link is connected with last axle crank through bent axle.
For optimizing technique scheme, the utility model also comprises following improved technical scheme.
Be provided with the guide runner that two front and back fixed interval are provided with in the front portion of above-mentioned head, the crank connecting link seat slides and is arranged between two guide runners.
The opposite face of above-mentioned guide runner is shaped on guide chute longitudinally respectively, and the both sides of crank connecting link seat are fixedly connected with slide bar respectively, is connected with slide block in the end of slide bar; Slide bar with stretch in the guide chute of guide runner, and slide block and guide chute are slidingly matched.
The center of above-mentioned crank connecting link seat is shaped on axle sleeve; Shank rotates and is arranged in the axle sleeve; Upper fixed at axle sleeve has the first shank anchor ear that is fixedly connected with shank; Below axle sleeve, be fixed with the second shank anchor ear that is fixedly connected with shank, the crank connecting link seat is limited between the first shank anchor ear and the second shank anchor ear.
Top at above-mentioned head is fixed with supporting base, is fixed with the shank axle sleeve on the supporting base; Shank top and shank axle sleeve are slidingly matched, and are fixed with shank on head top and protect frame.
The bottom of above-mentioned crank connecting link is shaped on the connection forked standard; Connecting forked standard matches with slide bar on the crank connecting link seat.
Above-mentioned rear end of going up axle is fixedly connected with synchronizing wheel, and synchronizing wheel is connected with driving wheel on the motor power axle through synchronous band, rotates through axle on the driven by motor.
Compared with prior art; The shank drive mechanism of the eyelet buttonhole sewing machine of the utility model adopts motor-driven; Drive upward axle rotation through synchronous band; Last axle is converted into moving up and down of crank connecting link seat through the effect of last axle crank, bent axle and crank connecting link with rotatablely moving, thereby drives shank work.The crank connecting link seat slides and is arranged between two guide runners; The slide bar and the slide block of crank connecting link seat both sides match with guide chute respectively; Simultaneously the slide bar of both sides is connected with the forked standard that is connected of crank connecting link respectively, have simple in structure, advantage flexibly easy to connect.
Description of drawings
Fig. 1 is the sectional structure sketch map of the utility model embodiment.
Fig. 2 is the inside perspective view of Fig. 1.
Fig. 3 is the front view of Fig. 2.
Fig. 4 is the rearview of Fig. 3.
Fig. 5 is the vertical view of Fig. 3.
Fig. 6 is the assembling decomposing schematic representation of Fig. 2.
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 6 to be the structural representation of the utility model.
Reference numeral wherein is: go up axle 1; Last axle crank 11; Synchronizing wheel 12; Travelling gear 13; Head 2; Guide runner 21; Guide chute 21a; Supporting base 22; Shank axle sleeve 23; Shank protects frame 24; Rotating shaft 25; Crank connecting link seat 3; Slide bar 31; Slide block 32; Axle sleeve 33; Crank connecting link 34; Connect forked standard 34a; Bent axle 35; Shank 4; The first shank anchor ear 41; The second shank anchor ear 42; Trunnion carrier 5; Guide holder 5a; Shank guiding pipe box 51; Pin pendulum level frame 52; Connecting axle 52a; The first shank pipe box support 53; The second shank pipe box support 54; Guide pad 55; Guiding skewed slot 55a; Guide post 56; Trunnion carrier synchronizing wheel 57; Bevel gear 61; Pin pendulum cam 62; Pin pendulum fork part 63; Pin wobble crank 64; Mounting groove 64a; Pin pendulum connecting rod 65; Pin swinging axle 66; The pin pendulum drives crank 67; Connecting plate 68; Pin pendulum yoke 69; Thread take-up tension lever 7; Thread take-up tension lever back shaft 71; Bogie 72; Roller shaft 73; Thread take-up tension lever cam 74; Handwheel 75; Roller 76.
As shown in Figure 1, the eyelet buttonhole sewing machine of the utility model comprises the upward axle 1 through the driven by motor rotation.Last axle 1 is rotatably installed in the head 2 through bearing.Front end at last axle 1 is fixed with axle crank 11, and the rear end of last axle 1 is fixed with synchronizing wheel 12.Described synchronizing wheel 12 is connected with driving wheel on the motor power axle through synchronous band, through axle 1 rotary work on the driven by motor.
Be provided with the guide runner 21 that two front and back fixed interval are provided with in the front portion of head 2, the opposite face of guide runner 21 is shaped on guide chute 21a longitudinally respectively.
Between two guide runners 21, be provided with crank connecting link seat 3.Be fixedly connected with slide bar 31 in the both sides of crank connecting link seat 3, be connected with slide block 32 in the end of slide bar 31.Slide bar 31 with stretch in the guide chute 21a of guide runner 21, and slide block 32 and guide chute 21a are slidingly matched.Crank connecting link seat 3 can move up and down along the guide chute 21a of guide runner 21.
Be shaped on axle sleeve 33 at the center of crank connecting link seat 3, in axle sleeve 33, be provided with shank 4.Upper fixed at axle sleeve 33 has the first shank anchor ear 41 that is fixedly connected with shank 4, below axle sleeve 33, is fixed with the second shank anchor ear 42 that is fixedly connected with shank 4.Crank connecting link seat 3 is locked between the first shank anchor ear 41 and the second shank anchor ear 42, and drives shank 4 and move up and down, simultaneously between crank connecting link seat 3 and the shank 4 for being rotatably assorted.
Be fixed with supporting base 22 on the top of head 2, be fixed with shank axle sleeve 23 on the supporting base 22.Shank 4 vertically is arranged in the head 2, and shank 4 tops and shank axle sleeve 23 are slidingly matched.Be fixed with shank on head 2 tops and protect frame 24, prevent to collide when shank 4 from moving up and down foreign object.
Above crank connecting link seat 3, be provided with crank connecting link 34.The bottom of crank connecting link 34 is shaped on and connects forked standard 34a.The connection forked standard 34a of crank connecting link 34 matches with the slide bar 31 of crank connecting link seat 3 both sides.
The top of crank connecting link 34 is connected with bent axle 35, and bent axle 35 connects goes up axle crank 11.When last axle 1 rotates, through last axle crank 11, bent axle 35 and crank connecting link 34, last 1 rotation is converted into moving up and down of crank connecting link seat 3, crank connecting link seat 3 drive shanks 4 move up and down then.
Shank 4 is connected with the shank swinging structure, and can be that fulcrum swings back and forth slightly with crank connecting link seat 3.The shank swinging structure comprises and rotates the trunnion carrier 5 that is arranged on head 2 bottoms, is provided with movable shank guiding pipe box 51 in the trunnion carrier 5, and shank 4 activities are arranged in the shank guiding pipe box 51.
In shank guiding pipe box 51 lower ends guide pad 55 is installed, two outer surfaces of guide pad 55 are shaped on guiding skewed slot 55a.Be installed with the guide holder 5a corresponding with guide pad 55 in the lower end of trunnion carrier 5, described guide holder 5a is provided with the guide post 56 that matches with the skewed slot 55a that leads.
Shank 4 is slidingly arranged in the shank guiding pipe box 51, by shank guiding pipe box 51 adjustment shank 4 positions in the horizontal direction.When shank guiding pipe box 51 moves up and down with respect to trunnion carrier 5; Because the effect of guiding skewed slot 55a; Guide post 56 matches with the guiding skewed slot 55a other end to guide post 56 with the end routing motion of guiding skewed slot 55a; Shank guiding pipe box 51 is just swung with respect to trunnion carrier 5, thereby the shanks 4 in the shank guiding pipe box 51 are swung back and forth around crank connecting link seat 3 slightly.
The top of shank guiding pipe box 51 is connected with and is used to drive its pin that moves up and down pendulum level frame 52, and pin pendulum level frame 52 is sheathed on outside the shank guiding pipe box 51.Above pin pendulum level frame 52, be provided with the first shank pipe box support 53 that is fixedly connected with shank guiding pipe box 51, below pin pendulum level frame 52, be provided with the second shank pipe box support 54 that is connected with shank guiding pipe box 51.
Pin pendulum level frame 52 is locked on the shank guiding pipe box 51 by the first shank pipe box support 53 and the second shank pipe box support 54, can move up and down to pipe box 51 by the driving needle rod guidance, and pin is put between level frame 52 and the shank guiding pipe box 51 to being rotatably assorted.
Afterbody at head 2 is equipped with rotating shaft 25, and bevel gear 61 and pin pendulum cam 62 are installed in the rotating shaft 25.Bevel gear 61 and travelling gear 13 engagements that are installed on the axle 1 drive rotating shaft 25 and rotate with pin pendulum cam 62.
Side at pin pendulum cam 62 is equipped with pin pendulum fork part 63.Pin pendulum fork part 63 is rotationally connected through installation shaft and head 2, and matches with pin pendulum cam 62.Pin pendulum cam 62 drives 63 swings of pin pendulum fork part when rotating.
In head 2 front portions pin wobble crank 64 is installed, is shaped on mounting groove 64a on the pin wobble crank 64.Between pin wobble crank 64 and pin pendulum fork part 63, be provided with pin pendulum connecting rod 65.One end of pin pendulum connecting rod 65 and pin pendulum fork part 63 are rotationally connected, and the other end is arranged in the mounting groove 64a of pin wobble crank 64, drives pin wobble crank 64 and rotates.The end of pin pendulum connecting rod 65 and the link position of mounting groove 64a can be adjusted, thereby can adjust the amplitude of fluctuation of pin wobble crank 64.
The movable end that drives crank 67 at the pin pendulum is connected with pin pendulum yoke 69.Pin is put level frame 52 and is shaped on two connecting axle 52a, and the pin pendulum drives crank 67 and is fixed with pin pendulum yoke 69, and pin pendulum yoke 69 matches with the connecting axle 52a that pin is put on the level frame 52.When the pin pendulum drove 66 rotations of crank 67 cast-over swinging axles, pin pendulum yoke 69 drove pin pendulum level frames 52 and moves up and down.
On trunnion carrier 5, be installed with trunnion carrier synchronizing wheel 57, drive trunnion carrier 5 through synchronous band and rotate.Because the guide pad 55 of the guide holder 5a of trunnion carrier 5 and shank guiding pipe box 51 matches, just can drive shank guiding pipe box 51 and shank 4 and rotate together.
With rotating shaft 25 that bevel gear 61 is connected on, be fixed with thread take-up tension lever cam 74.In head 2, be provided with thread take-up tension lever 7, the bottom of thread take-up tension lever 7 and head 2 are rotatably assorted through thread take-up tension lever back shaft 71, and the middle part of thread take-up tension lever 7 is shaped on bogie 72.
Bogie 72 is connected with roller shaft 73, and roller shaft 73 is equipped with roller 76, and roller 76 matches with the cam path of thread take-up tension lever cam 74.When thread take-up tension lever cam 74 rotated, driving thread take-up tension lever 7 was that fulcrum swings back and forth with thread take-up tension lever back shaft 71.
Be fixedly connected the handwheel 75 that is useful on axle 1 rotation in the drive in rotating shaft 25 ends.When debugging, can rotate to drive axle 1 through rotating handwheel 75.
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. the shank drive mechanism of eyelet buttonhole sewing machine comprises head (2), it is characterized in that: be provided with go up spool (1) that can rotate in the described head (2), the said front end of going up axle (1) is fixedly connected with an axle crank (11); The front portion of said head (2) is provided with the shank (4) of ability lengthwise movement, and described shank (4) is connected with crank connecting link seat (3); Described crank connecting link seat (3) longitudinal sliding motion is arranged in the head (2), is provided with crank connecting link (34) in the top of crank connecting link seat (3), and described crank connecting link (34) is connected with last axle crank (11) through bent axle (35).
2. the shank drive mechanism of eyelet buttonhole sewing machine according to claim 1; It is characterized in that: the guide runner (21) that fixed interval is provided be provided with two in the front portion of head (2) before and after, described crank connecting link seat (3) slides and is arranged between two guide runners (21).
3. the shank drive mechanism of eyelet buttonhole sewing machine according to claim 2; It is characterized in that: the opposite face of described guide runner (21) is shaped on guide chute (21a) longitudinally respectively; The both sides of described crank connecting link seat (3) are fixedly connected with slide bar (31) respectively, are connected with slide block (32) in the end of slide bar (31); Described slide bar (31) and stretching in the guide chute (21a) of guide runner (21), and slide block (32) and guide chute (21a) are slidingly matched.
4. the shank drive mechanism of eyelet buttonhole sewing machine according to claim 3; It is characterized in that: the center of said crank connecting link seat (3) is shaped on axle sleeve (33); Described shank (4) rotates and is arranged in the axle sleeve (33); Upper fixed at axle sleeve (33) has the first shank anchor ear (41) that is fixedly connected with shank (4); Be fixed with the second shank anchor ear (42) that is fixedly connected with shank (4) in the below of axle sleeve (33), described crank connecting link seat (3) is limited between the first shank anchor ear (41) and the second shank anchor ear (42).
5. the shank drive mechanism of eyelet buttonhole sewing machine according to claim 4 is characterized in that: be fixed with supporting base (22) on the top of head (2), be fixed with shank axle sleeve (23) on the supporting base (22); Said shank (4) top and shank axle sleeve (23) are slidingly matched, and are fixed with shank on head (2) top and protect frame (24).
6. the shank drive mechanism of eyelet buttonhole sewing machine according to claim 5 is characterized in that: the bottom of said crank connecting link (34) is shaped on and connects forked standard (34a); Described connection forked standard (34a) matches with slide bar (31) on the crank connecting link seat (3).
7. the shank drive mechanism of eyelet buttonhole sewing machine according to claim 6; It is characterized in that: said rear end of going up axle (1) is fixedly connected with synchronizing wheel (12); Described synchronizing wheel (12) is connected with driving wheel on the motor power axle through synchronous band, through axle (1) rotation on the driven by motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220065631 CN202492694U (en) | 2012-02-27 | 2012-02-27 | Needle bar transmission structure of eyelet buttonhole sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220065631 CN202492694U (en) | 2012-02-27 | 2012-02-27 | Needle bar transmission structure of eyelet buttonhole sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202492694U true CN202492694U (en) | 2012-10-17 |
Family
ID=46998929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220065631 Expired - Fee Related CN202492694U (en) | 2012-02-27 | 2012-02-27 | Needle bar transmission structure of eyelet buttonhole sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202492694U (en) |
-
2012
- 2012-02-27 CN CN 201220065631 patent/CN202492694U/en not_active Expired - Fee Related
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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: 20161012 Address after: 315100 Zhejiang city of Ningbo province Yinzhou District Jingu Road No. 219 Patentee after: NINGBO SUPREME ELECTRONIC MACHINERY CO., LTD. Address before: 315100 No. 528 Jin Yuan Road, Yinzhou investment center, Ningbo, Zhejiang, Yinzhou District Patentee before: Ningbo Supreme Electronic Technology Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121017 Termination date: 20200227 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |