CN209428704U - The needle gage regulating mechanism of sewing machine - Google Patents
The needle gage regulating mechanism of sewing machine Download PDFInfo
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- CN209428704U CN209428704U CN201822253980.2U CN201822253980U CN209428704U CN 209428704 U CN209428704 U CN 209428704U CN 201822253980 U CN201822253980 U CN 201822253980U CN 209428704 U CN209428704 U CN 209428704U
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- sewing machine
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- needle gage
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Abstract
The utility model relates to a kind of needle gage regulating mechanisms of sewing machine, using the utility model a kind of sewing machine needle gage regulating mechanism metering needle away from when, the rotation of the second connecting lever is driven by driving device, second connecting lever drives rotation connecting lever rotation by fourth link, rotates the position that connecting lever drives third connecting rod movement and adjusts the first pin shaft；Because the position of the first pin shaft is adjusted, so the drive connection between first connecting rod and second connecting rod is just adjusted, in this way, the rotation amplitude for being transmitted to the first connecting lever and feed spool in universal connecting shaft rotation is just adjusted, therefore the needle gage of sewing machine is just adjusted.Rotation position locating for second connecting lever determines the position of the second pin shaft, to determine that universal connecting shaft is transmitted to the drive connection on feed spool, and then determines the size of needle gage.Therefore, the rotation position for adjusting the second connecting lever can adjust the needle gage of sewing machine.
Description
Technical field
The utility model relates to a kind of needle gage regulating mechanisms of sewing machine.
Background technique
It is as shown in Figure 1 three step feeder of traditional roller sewing machine, traditional three step feeder of roller sewing machine is by upper roller
Feeding mechanism 2, bottom roller feeding mechanism 4,3 three parts of needle feeding mechanism composition, and the feeding mechanism of each section be all by
Stepper motor 1 independently carries out driving feeding；This feeding mechanism needs to use three stepper motors 1, in automatically controlled control, by electricity
The control carried out on software to stepper motor 1 is controlled, guarantees the harmony and synchronism of three stepper motors 1, in this way in feeding
When be just not in mistake on action sequence, in metering needle away from needing the cooperation of three stepper motors 1 could be complete
At.
Although three step feeder of roller sewing machine is upper more convenient in feeding adjusting, due to having used three stepping electricity
Machine causes the automatically controlled control requirement for stepper motor just very high, automatically controlled to need to control stepper motor and keep same in the feeding process
Step property and harmony.If will lead to stepper motor using inexpensive control program to be possible to will appear mistake in use
The phenomenon that step, causes existing a whole set of controller cost excessively high, control so control program uses complicated control program substantially at present
The cost of device processed is far longer than complete machine cost, is difficult in marketing application.
Utility model content
In view of the foregoing deficiencies of prior art, the purpose of this utility model is to provide a kind of needle gage tune of sewing machine
Mechanism is saved, the suture needle needle gage of sewing machine can be conveniently adjusted, structure is simple, and cost is relatively low.
To achieve the above object, the utility model provides a kind of needle gage regulating mechanism of sewing machine, using following technical side
Case: a kind of needle gage regulating mechanism of sewing machine, including rack, universal connecting shaft and for driving the needle sports of sewing machine to send
Expect axis, be connected with eccentric cam on universal connecting shaft, the first connecting lever is connected on feed spool, from the first connecting lever to eccentric cam it
Between be successively hinged with first connecting rod and second connecting rod, one end of first connecting rod and the first connecting lever are hinged, the other end of first connecting rod
Hinged with second connecting rod by the first pin shaft, second connecting rod is hinged on eccentric cam；The universal connecting shaft is rotated and is driven
Feed spool rotation, to drive the needle sports of sewing machine；
It further include the first connecting shaft and the rotation connecting lever being hinged in the first connecting shaft, rotation connecting lever includes the first arm and the
Two arms；One end of first arm and third connecting rod is hinged by the second pin shaft, and the other end of third connecting rod is hinged on first pin
On axis；One end of second arm and fourth link is hinged, and the other end of fourth link is hinged on the second connecting lever, and the second connecting lever is by driving
Dynamic device drives and rotates.
Preferably, the eccentric cam is cylindrical, and the second connecting rod covers on the external cylindrical surface of eccentric cam.
Preferably, first connecting shaft is rotatably connected in rack.
Preferably, first arm and the second arm are separately fixed at the both ends of the first connecting shaft.
Preferably, the driving device is stepper motor, and stepper motor is connect with control device.
Preferably, the universal connecting shaft, feed spool, the first connecting shaft axial location immobilize.
Preferably, the driving device is fixed on the rack.
Correspondingly with the needle gage regulating mechanism of sewing machine of the utility model a kind of, a kind of needle gage tune of sewing machine is also provided
The working method for saving mechanism is adjusted using the needle gage of sewing machine described in above-mentioned technical proposal or its any preferred technical solution
Mechanism carries out operation, including following work step:
1) metering needle away from, comprising:
A) driving device drives the rotation of the second connecting lever, and the second connecting lever drives rotation connecting lever to rotate by fourth link, rotation
Connecting lever drives the position of third connecting rod movement and the first pin shaft of adjustment, so as to adjust the size of needle gage；
B) it is adjusted to after setting needle gage, driving device stops the second connecting lever of driving, then the second connecting lever, fourth link and rotation
Turn connecting lever to remain stationary；
2) drive sewing machine needle sports: universal connecting shaft rotates and eccentric cam is driven to rotate, to drive second to connect
Bar movement, second connecting rod drive third connecting rod around the rotation of the second pin shaft and drive first connecting rod to move simultaneously, and first connecting rod drives
First connecting lever and feed spool rotate together, to drive needle sports.
As described above, the utility model relates to a kind of sewing machine needle gage regulating mechanism, have the advantages that
Using the utility model a kind of sewing machine needle gage regulating mechanism metering needle away from when, pass through driving device drive the second connecting lever rotation
Turn, the second connecting lever drives rotation connecting lever to rotate by fourth link, and rotation connecting lever drives third connecting rod movement and adjusts the first pin
The position of axis；Because the position of the first pin shaft is adjusted, the drive connection between first connecting rod and second connecting rod must
To adjust, in this way, the rotation amplitude for being transmitted to the first connecting lever and feed spool in universal connecting shaft rotation is just adjusted, therefore
The needle gage of sewing machine is just adjusted.Rotation position locating for second connecting lever determines the position of the second pin shaft, to determine
Universal connecting shaft is transmitted to the drive connection on feed spool, and then determines the size of needle gage.Therefore, the rotation of the second connecting lever is adjusted
The needle gage that can adjust sewing machine is set in indexing.
Detailed description of the invention
Fig. 1 is shown as the structural schematic diagram of roller sewing machine in the prior art.
Fig. 2 illustratively comprises a kind of structural representation of the roller sewing machine of the needle gage regulating mechanism of sewing machine of the utility model
Figure.
Fig. 3 is shown as the connection schematic diagram of driving device, universal connecting shaft, feed spool and its transmission connection piece.
Fig. 4 is shown as the connection schematic diagram of universal connecting shaft, feed spool and its transmission connection piece.
Fig. 5 is shown as the connection signal of universal connecting shaft from Fig. 4 opposite direction, feed spool and its transmission connection piece
Figure.
Fig. 6 is shown as a kind of schematic diagram of mechanism of the needle gage regulating mechanism of sewing machine of the utility model.
Component label instructions
1 stepper motor
2 upper roller feeding mechanisms
3 needle feeding mechanisms
4 bottom roller feeding mechanisms
5 needle gage regulating mechanisms
6 universal connecting shafts
7 feed spools
8 eccentric cams
9 first connecting levers
10 first connecting rods
11 second connecting rods
12 first pin shafts
13 first connecting shafts
14 rotation connecting levers
15 first arms
16 second arms
17 third connecting rods
18 second pin shafts
19 fourth links
20 second connecting levers
21 driving devices
Specific embodiment
The embodiments of the present invention is illustrated by particular specific embodiment below, those skilled in the art can be by this
Content disclosed by specification understands other advantages and effect of the utility model easily.
It should be clear that this specification structure depicted in this specification institute accompanying drawings, ratio, size etc., only to cooperate specification to be taken off
The content shown is not intended to limit the utility model enforceable restriction item so that those skilled in the art understands and reads
Part, therefore do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size are not influencing
Under the effect of the utility model can be generated and the purpose that can reach, should all still it fall in the revealed technology of the utility model
In the range of Rong get Neng is covered.Meanwhile it is cited such as "upper", "lower", "left", "right", " centre " and " one " in this specification
Deng term, be merely convenient to being illustrated for narration, rather than to limit the enforceable range of the utility model, relativeness
It is altered or modified, under the content of no substantial changes in technology, when being also considered as the enforceable scope of the utility model.
As shown in Fig. 2, the needle gage regulating mechanism 5 that the utility model provides a kind of sewing machine is used in the roller vehicle device of sewing machine
The needle gage that sewing machine is adjusted in structure, does not need three stepper motor coordinations, it is only necessary to which needle can be realized in a stepper motor 1
Away from adjusting.
As shown in Figures 3 to 6, it includes rack, universal company that the utility model, which provides a kind of needle gage regulating mechanism of sewing machine,
Spindle 6 and feed spool 7 for driving the needle sports of sewing machine are connected with eccentric cam 8, feed spool 7 on universal connecting shaft 6
On be connected with the first connecting lever 9, from the first connecting lever 9 to being successively hinged with first connecting rod 10 and second connecting rod 11 between eccentric cam 8,
One end of first connecting rod 10 and the first connecting lever 9 are hinged, and the other end of first connecting rod 10 passes through the first pin shaft 12 and second connecting rod 11
Hingedly, second connecting rod 11 is hinged on eccentric cam 8；The universal connecting shaft 6 rotates and feed spool 7 is driven to rotate, to drive
The needle sports of dynamic sewing machine；
The rotation connecting lever 14 for further including the first connecting shaft 13 and being hinged in the first connecting shaft 13, rotation connecting lever 14 include the
One arm 15 and the second arm 16；One end of first arm 15 and third connecting rod 17 is hinged by the second pin shaft 18, third connecting rod 17 it is another
One end is hinged on first pin shaft 12；Second arm 16 and one end of fourth link 19 are hinged, the other end of fourth link 19
It is hinged on the second connecting lever 20, the second connecting lever 20 is driven by driving device 21 and rotated.
Referring to FIG. 6, using the utility model a kind of sewing machine needle gage regulating mechanism metering needle away from when, pass through drive
Dynamic device 21 drives the rotation of the second connecting lever 20, and the second connecting lever 20 is rotated by the driving rotation connecting lever 14 of fourth link 19, and rotation is turned
Arm 14 drives the position of the movement of third connecting rod 17 and the first pin shaft 12 of adjustment；Because the position of the first pin shaft 12 is adjusted, institute
It is just adjusted with the drive connection between first connecting rod 10 and second connecting rod 11, in this way, being transmitted when universal connecting shaft 6 rotates
Rotation amplitude to the first connecting lever 9 and feed spool 7 is just adjusted, therefore the needle gage of sewing machine is just adjusted.Second connecting lever
Rotation position locating for 20 determines the position of the second pin shaft 18, to determine that universal connecting shaft 6 is transmitted on feed spool 7
Drive connection, and then determine the size of needle gage.Therefore, the rotation position for adjusting the second connecting lever 20 can adjust sewing machine
Needle gage.
Referring to FIG. 6, in a kind of needle gage regulating mechanism of sewing machine of the utility model, universal connecting shaft 6, feed spool
7, the first connecting shaft 13 be all connected on the rack, metering needle away from or carry out sewing operation when, universal connecting shaft 6, feed spool
7, the axis of the first connecting shaft 13 immobilizes.The driving device 21 is fixed on the rack, and second connecting lever 20 is fixed on
In the drive shaft of driving device 21, metering needle away from or when carrying out sewing operation, the axis of the drive shaft of driving device 21 is solid
It is fixed constant.As shown in fig. 6, eccentric cam 8 is fixed on universal connecting shaft 6, it is preferable that the eccentric cam 8 is cylindrical, the
Two rod set is on the external cylindrical surface of eccentric cam 8 repeatedly, and the left set of second connecting rod 11 is on the external cylindrical surface of eccentric cam 8, and
The right end of two connecting rods 11 is hinged on the first pin shaft 12, and the left end of first connecting rod 10 and the lower end of third connecting rod 17 are also articulated to
On one pin shaft 12, the right end of first connecting rod 10 and the first connecting lever 9 are hinged, and the first connecting lever 9 is fixedly connected with feed spool 7；And third
The upper end of connecting rod 17 and the first arm 15 of rotation connecting lever 14 are hinged by the second pin shaft 18, rotate the first arm of connecting lever 14
15 and the second angle between arm 16 fix, rotation connecting lever 14 is rotated around the axis of the first connecting shaft 13, the of rotation connecting lever 14
Two arms 16 and fourth link 19 are hinged, and fourth link 19 and the second connecting lever 20 are hinged, and the second connecting lever 20 is fixed on driving device 21
Drive shaft on.First connecting shaft 13 is that the first arm 15 and the second arm 16 are provided and rotationally supported, it is preferable that can be by the first arm 15
It is separately fixed at the both ends of the first connecting shaft 13 with the second arm 16, the first connecting shaft 13 is rotatably connected in rack.
Need metering needle away from when, as shown in fig. 6, by driving device 21 drive the second connecting lever 20 rotation, turned second
Under the drive of arm 20, fourth link 19 drives rotation connecting lever 14 to rotate, so that third connecting rod 17 moves, third connecting rod 17 is transported
Meeting is moved so that the second pin shaft 18 centainly arrives new position, and makes the position change of the first pin shaft 12, due to the first pin shaft 12
Position change, so the transitive relation that universal connecting shaft 6 drives to feed spool 7 will change.When the adjusting for completing needle gage
Later, driving device 21 stops the second connecting lever 20 of driving, and the second connecting lever 20, fourth link 19, rotation connecting lever 14 remain stationary,
Therefore, the position of the second pin shaft 18 remains stationary.In sewing operation, 17 structure of the first connecting lever 9, second connecting rod 11 and third connecting rod
At a four-bar mechanism, third connecting rod 17, first connecting rod 10 and the first connecting lever 9 also constitute a four-bar mechanism, when universal
When connecting shaft 6 drives the rotation of the first connecting lever 9, the first connecting lever 9 drives third connecting lever to rotate around the second pin shaft 18, and third connecting rod 17 revolves
Turn just to will drive the first connecting lever 9 and feed spool 7 rotates, so that suture needle acts.
In a kind of needle gage regulating mechanism of sewing machine of the utility model, the driving device 21 is turned for driving second
The rotation of arm 20 goes to any position in certain angle range inward turning and corresponds to a needle gage so as to adjust needle gage, the second connecting lever 20
Value, metering needle is away from size for convenience and subtly, as a preferred embodiment, the driving device 21 is stepping electricity
Machine, stepper motor are connect with control device, the corresponding needle gage value of stepper motor one step of every rotation, as needed, control device
Control stepper motor rotates a step or multistep and adjusts needle gage.
Correspondingly with the needle gage regulating mechanism of sewing machine of the utility model a kind of, the utility model also provides a kind of sewing
The working method of the needle gage regulating mechanism of machine utilizes sewing machine described in above-mentioned technical proposal or its any preferred technical solution
Needle gage regulating mechanism carry out operation, including following work step:
1) metering needle away from, comprising:
A) driving device 21 drives the rotation of the second connecting lever 20, and the second connecting lever 20 passes through the driving rotation connecting lever 14 of fourth link 19
Rotation, rotation connecting lever 14 drives the position of the movement of third connecting rod 17 and the first pin shaft 12 of adjustment, so as to adjust the size of needle gage；
B) it is adjusted to after setting needle gage, driving device 21 stops the second connecting lever 20 of driving, then the second connecting lever the 20, the 4th connects
Bar 19 and rotation connecting lever 14 remain stationary；
2) drive sewing machine needle sports: universal connecting shaft 6 rotates and eccentric cam 8 is driven to rotate, to drive second
Connecting rod 11 moves, and second connecting rod 11 drives third connecting rod 17 around the rotation of the second pin shaft 18 and drives first connecting rod 10 to move simultaneously,
First connecting rod 10 drives the first connecting lever 9 and feed spool 7 to rotate together, to drive needle sports.
The needle gage regulating mechanism of technical solution based on the above embodiment, a kind of sewing machine of the utility model can facilitate
Ground adjusts the suture needle needle gage of sewing machine, and structure is simple, only can be achieved with needle gage by a stepper motor and adjusts, without multiple
Miscellaneous automatically controlled scheme, the automatically controlled scheme for controlling stepper motor is simple, and therefore, manufacturing cost is greatly lowered.Moreover, this is practical new
A kind of needle gage regulating mechanism of sewing machine of type use mechanical regulative mode, by driving device drive the second connecting lever rotate to
Unspecified angle all necessarily has the needle gage of a corresponding size, and the mode of mechanical adjustment is reliable and stable, is less prone to failure.This reality
In needle gage regulating mechanism with a kind of novel sewing machine, can arbitrarily along seam and it be backstitched by control driving device, and can appoint
Meaning setting is along seam and the needle number that backstitches and backstitches number, and can reach suitable, backstitch fully synchronized concordant, can also pass through programming
Mode controls driving device and achievees the effect that close needle seam.
In conclusion the utility model effectively overcomes various shortcoming in the prior art and has high industrial exploitation value
Value.
The above embodiments are only illustrative of the principle and efficacy of the utility model, and not for limitation, this is practical new
Type.Any person skilled in the art can all carry out above-described embodiment under the spirit and scope without prejudice to the utility model
Modifications and changes.Therefore, such as those of ordinary skill in the art without departing from the revealed essence of the utility model
All equivalent modifications or change completed under mind and technical idea, should be covered by the claim of the utility model.
Claims (7)
1. the needle gage regulating mechanism of a kind of sewing machine, including rack, universal connecting shaft (6) and for driving the suture needle of sewing machine to transport
Dynamic feed spool (7) is connected with eccentric cam (8) on universal connecting shaft (6), the first connecting lever (9) is connected on feed spool (7),
From the first connecting lever (9) to being successively hinged with first connecting rod (10) and second connecting rod (11), first connecting rod between eccentric cam (8)
(10) hingedly, the other end of first connecting rod (10) passes through the first pin shaft (12) and second connecting rod for one end and the first connecting lever (9)
(11) hingedly, second connecting rod (11) is hinged on eccentric cam (8)；The universal connecting shaft (6) rotates and drives feed spool (7)
Rotation, to drive the needle sports of sewing machine；It is characterized in that
It further include the first connecting shaft (13) and the rotation connecting lever (14) being hinged on the first connecting shaft (13), rotation connecting lever (14) packet
Include the first arm (15) and the second arm (16)；One end of first arm (15) and third connecting rod (17) passes through the second pin shaft (18) hingedly,
The other end of third connecting rod (17) is hinged on first pin shaft (12)；It cuts with scissors one end of second arm (16) and fourth link (19)
Connect, the other end of fourth link (19) is hinged on the second connecting lever (20), the second connecting lever (20) by driving device (21) drive and
Rotation.
2. the needle gage regulating mechanism of sewing machine according to claim 1, it is characterised in that: the eccentric cam (8) is in circle
Column, the second connecting rod (11) cover on the external cylindrical surface of eccentric cam (8).
3. the needle gage regulating mechanism of sewing machine according to claim 1, it is characterised in that: first connecting shaft (13) can
It rotationally connects on the rack.
4. the needle gage regulating mechanism of sewing machine according to claim 1, it is characterised in that: first arm (15) and second
Arm (16) is separately fixed at the both ends of the first connecting shaft (13).
5. the needle gage regulating mechanism of sewing machine according to claim 1, it is characterised in that: the driving device (21) is step
Into motor, stepper motor is connect with control device.
6. the needle gage regulating mechanism of sewing machine according to claim 1, it is characterised in that: the universal connecting shaft (6) is sent
Expect axis (7), the axial location of the first connecting shaft (13) immobilizes.
7. the needle gage regulating mechanism of sewing machine according to claim 1, it is characterised in that: the driving device (21) is fixed
On the rack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822253980.2U CN209428704U (en) | 2018-12-29 | 2018-12-29 | The needle gage regulating mechanism of sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822253980.2U CN209428704U (en) | 2018-12-29 | 2018-12-29 | The needle gage regulating mechanism of sewing machine |
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| Publication Number | Publication Date |
|---|---|
| CN209428704U true CN209428704U (en) | 2019-09-24 |
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ID=67974776
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| Application Number | Title | Priority Date | Filing Date |
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| CN201822253980.2U Active CN209428704U (en) | 2018-12-29 | 2018-12-29 | The needle gage regulating mechanism of sewing machine |
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| Country | Link |
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| CN (1) | CN209428704U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109402878A (en) * | 2018-12-29 | 2019-03-01 | 杰克缝纫机股份有限公司 | The needle gage regulating mechanism and its working method of sewing machine |
-
2018
- 2018-12-29 CN CN201822253980.2U patent/CN209428704U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109402878A (en) * | 2018-12-29 | 2019-03-01 | 杰克缝纫机股份有限公司 | The needle gage regulating mechanism and its working method of sewing machine |
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| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 318010 No. 1008, east section of Donghai Avenue, Sanjia, Jiaojiang District, Taizhou City, Zhejiang Province Patentee after: Jack Technology Co.,Ltd. Address before: 318010 No. 15 Airport South Road, Jiaojiang District, Zhejiang, Taizhou Patentee before: JACK SEWING MACHINE Co.,Ltd. |
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| CP03 | Change of name, title or address |