CN205775223U - A kind of speed change needle bar drive device being applied on computerized emboridering machine - Google Patents
A kind of speed change needle bar drive device being applied on computerized emboridering machine Download PDFInfo
- Publication number
- CN205775223U CN205775223U CN201620656039.3U CN201620656039U CN205775223U CN 205775223 U CN205775223 U CN 205775223U CN 201620656039 U CN201620656039 U CN 201620656039U CN 205775223 U CN205775223 U CN 205775223U
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- rocking bar
- shank
- headstock
- hinged
- drive
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Abstract
The utility model discloses a kind of speed change needle bar drive device being applied on computerized emboridering machine, including headstock, it is arranged on shank moving up and down on headstock, the shank drive shaft being arranged on headstock, drive the drive mechanism that shank slides up and down along shank power transmission shaft, the actuating unit of drive transmission device, described drive mechanism includes the cam connecting actuating unit, connect the crank of cam, the rocking bar I of connecting crank one end, connect the rocking bar III of rocking bar I, connect the rocking bar II of rocking bar III, one end of described rocking bar I is hinged on headstock, the other end is connected on crank, one end of described rocking bar II is hinged on headstock, the other end of rocking bar II is hinged on shank, the middle part of rocking bar II is hinged with rocking bar III.This utility model makes to achieve the variable motion of shank, it is to avoid shank significantly moves and makes head produce vibrations and noise, extends the service life of head, improves production efficiency.
Description
Technical field
This utility model relates to a kind of computerized emboridering machine structure, is specifically related to a kind of speed change being applied on computerized emboridering machine
Needle bar drive device.
Background technology
In prior art, eccentric cam between shank and the needle bar drive device in the head of computerized emboridering machine, is used to set
Put, eccentric cam clockwise or counterclockwise during, drive shank move up and down.It is convex that the surface of eccentric cam is only arc
Rise, thus drive shank quickly to rise or rapid decrease, due to effect of inertia, cause head vibrations excessive, not only produce noise
And affect life-span and the embroidery outage of head, and rotating speed cannot be improved, hinder the raising of production efficiency.
Summary of the invention
In order to overcome the deficiencies in the prior art, this utility model provides a kind of shank realizing the change of shank speed to drive
Mechanism.
This utility model solves its technical problem and be the technical scheme is that
A kind of speed change needle bar drive device being applied on computerized emboridering machine, including headstock, being arranged on headstock can
The transmission that the shank moved up and down, the shank drive shaft being arranged on headstock, driving shank slide up and down along shank power transmission shaft
Mechanism, the actuating unit of drive transmission device, described drive mechanism includes connecting the cam of actuating unit, connecting the song of cam
Handle, the rocking bar I of connecting crank one end, the rocking bar III of connection rocking bar I, the rocking bar II of connection rocking bar III, one end hinge of described rocking bar I
Being connected on headstock, the other end is connected on crank, and one end of described rocking bar II is hinged on headstock, the other end of rocking bar II
Being hinged on shank, the middle part of rocking bar II is hinged with rocking bar III.
In this utility model, being connected and have connecting rod between described rocking bar II and shank, described connecting rod connects slide block, institute
State slide block set be located in shank drive shaft and fixing with shank be connected.
The beneficial effects of the utility model are: this utility model uses actuated by cams crank and double rocker mechanism, can make pin
Bar drive shaft and shank realize quickly rising and declining, and during dropping to bottom, speed is accelerated, and rises to the mistake at top
Cheng Zhong, speed slows down, it is achieved that the variable motion of shank, it is to avoid shank significantly moves and makes head produce vibrations and make an uproar
Sound, extends the service life of head, improves production efficiency.
Accompanying drawing explanation
With embodiment, this utility model is further illustrated below in conjunction with the accompanying drawings:
Fig. 1 is the structural representation of the present embodiment.
Detailed description of the invention
Reference Fig. 1, a kind of speed change needle bar drive device being applied on computerized emboridering machine that the present embodiment is provided, including
Headstock 1, be arranged on shank 7 moving up and down on headstock 1, the shank drive shaft 2 being arranged on headstock 1, drive pin
Drive mechanism 3 that bar 7 slides up and down along shank power transmission shaft 25, the actuating unit 4 of drive transmission device 3, described drive mechanism 3 wraps
Include and connect the cam 31 of actuating unit 4, the connection crank 34 of cam 31, the rocking bar I 32 of connecting crank 34 one end, connection rocking bar I
The rocking bar III 35 of 32, connecting the rocking bar II 33 of rocking bar III 35, one end of described rocking bar I 32 is hinged on headstock 1, and the other end is even
Being connected on crank 34, one end of described rocking bar II 33 is hinged on headstock 1, and the other end of rocking bar II 33 is hinged on shank 7,
The middle part of rocking bar II 33 is hinged with rocking bar III 35, and certain rocking bar III 35 is also attached to the extended line at rocking bar II 33 two ends
On.In the present embodiment, described cam 31 and rocking bar I 32 are positioned at the lower section of rocking bar II 33.Described actuating unit 4 is that a driving is convex
The driving shaft of wheel 31 rotation.
Be can be seen that by accompanying drawing, rocking bar III 35 is hinged on the position that the middle part of rocking bar II 33 is to the right, and more keeping right in its hinge position, shakes
The movable amplitude of bar II 33 is the biggest, and in the present embodiment, the length ratio optimum on the length on the left side, hinge position and the right is 5 ~
6:4 ~ 5, crank 34 is 1:2 with the ratio of rocking bar I 32.
As preferred embodiment, softer for the motion making shank, described rocking bar II 33 is connected between shank 7
Having connecting rod 5, described connecting rod 5 connects slide block 6, and described connecting rod 5 is articulated manner with the connection of rocking bar II 33 and slide block 6,
Described slide block 6 is simultaneously connected with shank drive shaft 2 and shank 7, and slide block 6 slides up and down and drives along shank drive shaft 2 on shank 7
Lower slider, the two ends of connecting rod 5 are hinged with rocking bar II 33 and shank drive shaft 2 respectively.
The foregoing is only preferred embodiments of the present utility model, as long as realizing this utility model with essentially identical means
Within the technical scheme of purpose broadly falls into protection domain of the present utility model.
Claims (2)
1. the speed change needle bar drive device being applied on computerized emboridering machine, including headstock (1), is arranged on headstock (1)
Upper shank moving up and down (7), the shank drive shaft (2) being arranged on headstock (1), driving shank are along shank power transmission shaft
(2) drive mechanism (3) that slides up and down, the actuating unit (4) of drive transmission device (3), it is characterised in that: described drive mechanism
(3) include connecting the cam (31) of actuating unit (4), connecting the crank (34) of cam (31), the shaking of connecting crank (34) one end
Bar I (32), the rocking bar III (35) of connection rocking bar I (32), the rocking bar II (33) of connection rocking bar III (35), described rocking bar I (32)
One end is hinged on headstock (1), and the other end is connected on crank (34), and one end of described rocking bar II (33) is hinged on headstock
(1), on, the other end of rocking bar II (33) is hinged on shank (7), and the middle part of rocking bar II (33) is hinged with rocking bar III (35).
A kind of speed change needle bar drive device being applied on computerized emboridering machine the most according to claim 1, it is characterised in that:
Being connected between described rocking bar II (33) and shank (7) and have connecting rod (5), the upper connection of described connecting rod (5) has slide block (6), described slide block
(6) it is set in shank drive shaft (2) and fixes with shank (7) and be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620656039.3U CN205775223U (en) | 2016-06-23 | 2016-06-23 | A kind of speed change needle bar drive device being applied on computerized emboridering machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620656039.3U CN205775223U (en) | 2016-06-23 | 2016-06-23 | A kind of speed change needle bar drive device being applied on computerized emboridering machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205775223U true CN205775223U (en) | 2016-12-07 |
Family
ID=58128433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620656039.3U Active CN205775223U (en) | 2016-06-23 | 2016-06-23 | A kind of speed change needle bar drive device being applied on computerized emboridering machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205775223U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105862281A (en) * | 2016-06-23 | 2016-08-17 | 陈志锟 | Variable-speed needle rod drive mechanism applicable to computer embroider |
-
2016
- 2016-06-23 CN CN201620656039.3U patent/CN205775223U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105862281A (en) * | 2016-06-23 | 2016-08-17 | 陈志锟 | Variable-speed needle rod drive mechanism applicable to computer embroider |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |