CN206625011U - A kind of sewing machine Yarn taking-up mechanism - Google Patents
A kind of sewing machine Yarn taking-up mechanism Download PDFInfo
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- CN206625011U CN206625011U CN201720297093.8U CN201720297093U CN206625011U CN 206625011 U CN206625011 U CN 206625011U CN 201720297093 U CN201720297093 U CN 201720297093U CN 206625011 U CN206625011 U CN 206625011U
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- connecting rod
- tension lever
- thread take
- cam
- projection
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Abstract
A kind of sewing machine Yarn taking-up mechanism, drive mechanism including thread take-up tension lever and driving thread take-up tension lever, cam that the drive mechanism includes being enclosed on machine spindle, with the cam engagement and the projection and pin joint seat that are arranged on thread take-up tension lever, the pin joint seat is provided with driving rod, one end of the thread take-up tension lever is articulated on pin joint seat, the side of the cam is provided with the track curved surface that driving thread take-up tension lever swings, and the spring for forcing projection to be close to track curved surface is provided between one end of the thread take-up tension lever and pin joint seat.The utility model operating principle：Main axis band moving cam rotates, and enables track curved surface walking of the projection in cam, the diverse location of projection walking to track curved surface, and projection has different actions, and after track curved surface walking one is walked, achievable thread take-up tension lever swings projection, to complete take-up action.The cooperation of cam and projection, it is simple in construction, it is not easy to damage, durability is more preferable.
Description
Technical field
Sewing machine is the utility model is related to, especially a kind of sewing machine Yarn taking-up mechanism.
Background technology
The Yarn taking-up mechanism of sewing machine, sewing machine is in sewing, during stitching is formed, plays conveying, recovery needlework
And tighten up the mechanism of stitching effect.It is categorized as：Cam Yarn taking-up mechanism：The mechanism moved by cam driven thread take-up tension lever.Connecting rod is chosen
Line mechanism：The mechanism of thread take-up tension lever motion is driven by quadric chain.Thread take-up tension lever is the connecting rod of quadric chain.Slide bar take-up machine
Structure：The mechanism of thread take-up tension lever motion is driven by crank and sliding bar mecbanism.Thread take-up tension lever is the guide rod of quadric chain.Rotate Yarn taking-up mechanism：
By one or two garden disk equipped with take-up pin or other shapes of component, with the mechanism of rotary motion progress take-up motion.Pin
Lever take-up mechanism：By crossing line or wire-clamping device on affixed shank, or directly it is installed in the mechanism of the thread take-up tension lever of shank.Take-up machine
Structure can be designed according to the structure of sewing machine, and the Yarn taking-up mechanism of different sewing machines is not quite similar.
The content of the invention
Technical problem to be solved in the utility model is a kind of sewing machine Yarn taking-up mechanism, simple in construction.
In order to solve the above technical problems, the technical solution of the utility model is：A kind of sewing machine Yarn taking-up mechanism, including take-up
The drive mechanism of bar and driving thread take-up tension lever, cam that the drive mechanism includes being enclosed on machine spindle, match somebody with somebody with the cam
Close and be arranged on the projection on thread take-up tension lever and pin joint seat, the pin joint seat is provided with driving rod, one end pivot joint of the thread take-up tension lever
On pin joint seat, the side of the cam is provided with the track curved surface that driving thread take-up tension lever swings, one end of the thread take-up tension lever with
The spring for forcing projection to be close to track curved surface is provided between pin joint seat.The utility model operating principle：Main axis band moving cam
Rotation, enable track curved surface walking of the projection in cam, to the diverse location of track curved surface, projection has different for projection walking
Action, after track curved surface walking one is walked, achievable thread take-up tension lever swings projection, to complete take-up action.Cam and projection
Cooperation, it is simple in construction, it is not easy to damage, durability is more preferable.
As an improvement, the thread take-up tension lever includes first connecting rod, second connecting rod and third connecting rod, one end of first connecting rod is provided with
Take-up hole, the other end of first connecting rod and one end of second connecting rod connect, the other end of second connecting rod and one end of third connecting rod
Connection, the other end of third connecting rod are provided with pivoted hole, and the pivoted hole is articulated on driving rod.
As an improvement, the second connecting rod is vertically arranged, first connecting rod is vertical with second connecting rod, and second connecting rod and the 3rd connects
Bar is vertical, and cam is located at the lower section of third connecting rod.
As an improvement, the surface of the third connecting rod is provided with reinforcement.
As an improvement, the junction of the first connecting rod and second connecting rod is provided with reinforcing plate, second connecting rod and third connecting rod
Junction be provided with reinforcing plate.
As an improvement, the pin joint seat is provided with the first connecting pole, one end of the thread take-up tension lever is provided with the second connecting pole, bullet
One end of spring is fixed on the first connecting pole, and the other end of spring is fixed on the second connecting pole.
As an improvement, track curved surface includes starting point and terminal, starting point circumferentially gradually rises in terminal direction, terminal
By tilting surface blending to starting point, the angle of inclination of the line between starting point and terminal is 80 ~ 90 °.Projection is from terminal
Return to during starting point, thread take-up tension lever returns.
Caused beneficial effect is the utility model compared with prior art：
The cooperation of cam and projection, achievable thread take-up tension lever swing, and to complete take-up action, this is simple in construction, does not allow
Fragile, durability is more preferable.
Brief description of the drawings
Fig. 1 is the utility model structure diagram.
Fig. 2 is cam structure schematic diagram.
Embodiment
With reference to Figure of description, the utility model is described in further detail.
As shown in figure 1, a kind of sewing machine Yarn taking-up mechanism, including the drive mechanism of thread take-up tension lever 2 and driving thread take-up tension lever 2.It is described
The cam 3 that drive mechanism includes being enclosed on machine spindle 1 and the projection 4 that the cam 3 coordinates and is arranged on thread take-up tension lever 2
With pin joint seat 5.The pin joint seat 5 is provided with driving rod 51, and one end of the thread take-up tension lever 2, which is provided with, to be articulated on pin joint seat 5, take-up
Bar 2 can swing around driving rod 51.As shown in Fig. 2 the side of the cam 3 is provided with the rail that driving thread take-up tension lever 2 swings
Mark curved surface 31, track curved surface 31 include starting point and terminal, and starting point circumferentially gradually rises in terminal direction, and terminal is by inclining
Skew surface is transitioned into starting point, and the angle of inclination of the line between starting point and terminal is 80 ~ 90 °, and projection 4 is from returning to terminal
During initial point, thread take-up tension lever 2 resets rapidly.Being provided between one end of the thread take-up tension lever 2 and pin joint seat 5 forces projection 4 to be close to rail
The spring 6 of mark curved surface 31, so that it is guaranteed that the stability of thread take-up tension lever 2；The pin joint seat 5 is provided with the first connecting pole, the take-up
One end of bar 2 is provided with the second connecting pole, and one end of spring 6 is fixed on the first connecting pole, and the other end of spring 6 is fixed on second
On connecting pole；Spring 6 is in extended state, and spring 6 applies pulling force to one end of thread take-up tension lever 2 all the time, makes the projection on thread take-up tension lever 2
4 press close to track curved surface 31.The thread take-up tension lever 2 includes first connecting rod 21, second connecting rod 22 and third connecting rod 23, first connecting rod 21
One end is provided with take-up hole 24, and the other end of first connecting rod 21 is connected with one end of second connecting rod 22, the other end of second connecting rod 22
It is connected with one end of third connecting rod 23, the other end of third connecting rod 23 is provided with pivoted hole, and the pivoted hole is articulated in driving rod 51
On.The second connecting rod 22 is vertically arranged, and first connecting rod 21 is vertical with second connecting rod 22, and second connecting rod 22 hangs down with third connecting rod 23
Directly, cam 3 is located at the lower section of third connecting rod 23, and this kind of structure space-consuming is smaller, is applicable small held sewing machine.Due to sewing process
Thread take-up tension lever 2 needs frequently to swing, and to ensure that thread take-up tension lever 2 will not fracture, therefore sets reinforcement 25 on the surface of third connecting rod 23,
The junction of first connecting rod 21 and second connecting rod 22 sets reinforcing plate 26, and the junction of second connecting rod 22 and third connecting rod 23 sets reinforcement
Plate.
The utility model operating principle：Main axis band moving cam 3 rotates, and enables projection 4 in the track curved surface of cam 3
31 walkings, the diverse location of the walking of projection 4 to track curved surface 31, projection 4 have different actions, and projection 4 is in the row of track curved surface 31
After walking, thread take-up tension lever 2 can be achieved and swing, to complete take-up action.The cooperation of cam 3 and projection 4, it is simple in construction, no
It is easily damaged, durability is more preferable.
Claims (7)
1. a kind of sewing machine Yarn taking-up mechanism, including the drive mechanism of thread take-up tension lever and driving thread take-up tension lever, it is characterised in that：The driving
Cam that mechanism includes being enclosed on machine spindle, with the cam engagement and the projection and pin joint seat that are arranged on thread take-up tension lever,
The pin joint seat is provided with driving rod, and one end of the thread take-up tension lever is articulated on pin joint seat, and the side of the cam is provided with driving
The track curved surface that thread take-up tension lever swings, it is provided between one end of the thread take-up tension lever and pin joint seat and forces projection to be close to track curved surface
Spring.
A kind of 2. sewing machine Yarn taking-up mechanism according to claim 1, it is characterised in that：The thread take-up tension lever includes first and connected
Bar, second connecting rod and third connecting rod, one end of first connecting rod are provided with take-up hole, the other end of first connecting rod and the one of second connecting rod
End connection, the other end of second connecting rod and one end of third connecting rod connect, and the other end of third connecting rod is provided with pivoted hole, the pivot
Hole is connect to be articulated on driving rod.
A kind of 3. sewing machine Yarn taking-up mechanism according to claim 2, it is characterised in that：The second connecting rod is vertically arranged,
First connecting rod is vertical with second connecting rod, and second connecting rod is vertical with third connecting rod, and cam is located at the lower section of third connecting rod.
A kind of 4. sewing machine Yarn taking-up mechanism according to claim 2, it is characterised in that：The surface of the third connecting rod is provided with
Reinforcement.
A kind of 5. sewing machine Yarn taking-up mechanism according to claim 2, it is characterised in that：The first connecting rod and second connecting rod
Junction be provided with reinforcing plate, the junction of second connecting rod and third connecting rod is provided with reinforcing plate.
A kind of 6. sewing machine Yarn taking-up mechanism according to claim 1, it is characterised in that：The pin joint seat is provided with first and connected
Post is connect, one end of the thread take-up tension lever is provided with the second connecting pole, and one end of spring is fixed on the first connecting pole, the other end of spring
It is fixed on the second connecting pole.
A kind of 7. sewing machine Yarn taking-up mechanism according to claim 1, it is characterised in that：Track curved surface includes starting point and end
Point, starting point circumferentially gradually rise in terminal direction, terminal by tilting surface blending to starting point, starting point and terminal it
Between line angle of inclination be 80 ~ 90 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720297093.8U CN206625011U (en) | 2017-03-24 | 2017-03-24 | A kind of sewing machine Yarn taking-up mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720297093.8U CN206625011U (en) | 2017-03-24 | 2017-03-24 | A kind of sewing machine Yarn taking-up mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206625011U true CN206625011U (en) | 2017-11-10 |
Family
ID=60208498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720297093.8U Active CN206625011U (en) | 2017-03-24 | 2017-03-24 | A kind of sewing machine Yarn taking-up mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206625011U (en) |
-
2017
- 2017-03-24 CN CN201720297093.8U patent/CN206625011U/en active Active
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