CN211645613U - Zigzag seam web forming mechanism of sewing machine - Google Patents
Zigzag seam web forming mechanism of sewing machine Download PDFInfo
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- CN211645613U CN211645613U CN201921528557.7U CN201921528557U CN211645613U CN 211645613 U CN211645613 U CN 211645613U CN 201921528557 U CN201921528557 U CN 201921528557U CN 211645613 U CN211645613 U CN 211645613U
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- needle
- sewing machine
- breadth
- needle bar
- cam
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Abstract
The utility model provides a sewing machine zigzag seam breadth of a needle forming mechanism, is including installing the needle bar support on sewing machine, and one side of needle bar support is provided with the motor mount of installing on sewing machine, is provided with the breadth of a needle cam on the motor mount, and the below of breadth of a needle cam is provided with the breadth of a needle pendulum rod, and the middle part of breadth of a needle pendulum rod is installed on the motor mount through the pivot, and the one end and the breadth of a needle cam contact of breadth of a needle pendulum rod, the other end and the needle bar support contact of breadth of a needle. The transmission route from the stepping motor to the needle is shortened, transmission errors are eliminated, production cost can be reduced, the using effect is good, and popularization is facilitated.
Description
Technical Field
The utility model relates to a sewing machine technical field especially relates to an adopt step motor driven zigzag seam breadth of a needle to form mechanism for on domestic multi-functional sewing machine.
Background
At present, in the multifunctional sewing machine which is circulated in the market and used for families, a zigzag sewing needle width forming mechanism is engaged with a sector gear by a stepping motor through a motor transmission gear fixedly connected with the stepping motor, the other end of the sector gear is hinged with a needle bar bracket through an induction plate, and is linked with a needle bar and a machine needle which are connected with the needle bar bracket and can swing left and right; when a certain stitch pattern needs to be sewn, a control unit of the sewing machine sends a signal to a stepping motor, the stepping motor drives a motor transmission gear to move, the motor transmission gear drives a sector gear to move, the sector gear converts the rotary motion of the stepping motor into reciprocating motion and transmits the reciprocating motion to a needle bar support through an induction plate, and the needle bar support drives a needle bar and a machine needle to swing left and right and is coupled with the machine needle in a vertical direction to form a required zigzag sewing breadth; because of the meshing clearance of the gears, the circular motion of the sector gear is converted to the linear swing on the sewing plane, the stitch width is changed in a sine way, the stitch width of each step of the stepping motor is different, the sewed pattern can be deformed due to the influence of transmission error and stitch width conversion, and the method is particularly obvious when characters are sewed.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problems existing in the prior art and provide a zigzag stitch width forming mechanism of a sewing machine, which shortens the transmission route and eliminates the transmission error, thereby eliminating the problem of pattern deformation; the structure is reasonable, the use is convenient, the assembly and the debugging are convenient, and the requirements of people are met.
The utility model provides a technical scheme that its technical problem adopted: the zigzag seam needle amplitude forming mechanism of the sewing machine comprises a needle bar support arranged on the sewing machine, wherein a motor fixing frame arranged on the sewing machine is arranged on one side of the needle bar support, a needle amplitude cam is arranged on the motor fixing frame, a needle amplitude swing rod is arranged below the needle amplitude cam, the middle part of the needle amplitude swing rod is arranged on the motor fixing frame through a rotating shaft, one end of the needle amplitude swing rod is in contact with the needle amplitude cam, and the other end of the needle amplitude swing rod is in contact with the needle bar support.
The lower end of the needle bar bracket is fixed with a needle bar, and the lower end of the needle bar is connected with a machine needle.
The motor fixing frame is provided with a stepping motor, and the needle amplitude cam is fixed on a rotating shaft of the stepping motor.
The utility model discloses profitable effect is: the utility model discloses a sewing machine zigzag seam width of cloth forming mechanism has shortened step motor to the transmission route of eedle, has eliminated transmission error, can reduction in production cost, and excellent in use effect does benefit to the popularization.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural view of the embodiment of the present invention applied to a sewing machine.
Description of reference numerals: the needle bar fixing device comprises a needle bar bracket 1, a motor fixing frame 2, a needle amplitude cam 3, a needle amplitude swing rod 4, a rotating shaft 5, a needle bar 6, a needle 7 and a stepping motor 8.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings:
with reference to the accompanying drawings: the zigzag sewing needle width forming mechanism of the sewing machine in the embodiment comprises a needle bar support 1 installed on the sewing machine, a motor fixing frame 2 installed on the sewing machine is arranged on one side of the needle bar support 1, a needle width cam 3 is arranged on the motor fixing frame 2, a needle width swing rod 4 is arranged below the needle width cam 3, the middle of the needle width swing rod 4 is installed on the motor fixing frame 2 through a rotating shaft 5, one end of the needle width swing rod 4 is in contact with the needle width cam 3, and the other end of the needle width swing rod 4 is in contact with the needle bar support 1.
A needle bar 6 is fixed at the lower end of the needle bar bracket 1, and a machine needle 7 is connected at the lower end of the needle bar 6.
A stepping motor 8 is arranged on the motor fixing frame 2, and the needle amplitude cam 3 is fixed on a rotating shaft of the stepping motor 8.
The structure of the spoke oscillating bar 4 is shown in the figure.
When the needle bar support is used, the stepping motor 8 drives the needle amplitude cam 3 to rotate, the needle amplitude cam 3 pushes the needle amplitude swing rod 4 to swing and transmit the swing to the needle bar support 1, and the needle bar support 1 drives the needle bar 6 and the machine needle 7 to swing left and right and is coupled with the machine needle 7 in a motion mode in the vertical direction, so that zigzag stitch is achieved.
The needle amplitude cam 3 converts the rotary motion of the stepping motor 8 into reciprocating motion and transmits the reciprocating motion to the needle bar bracket 1 through the needle amplitude swing rod 4, and the needle bar bracket 1 drives the needle bar 6 and the needle 7 to swing left and right and is coupled with the needle 7 in a motion way in the vertical direction to realize zigzag stitch; the transmission route from the stepping motor 8 to the needle 7 is short, so that the transmission error can be eliminated, and the production cost can be reduced.
The embodiment of the utility model provides a characteristics are: the transmission route from the stepping motor 8 to the needle 7 is shortened, the transmission error is eliminated, the production cost can be reduced, the using effect is good, and the popularization is facilitated.
While the invention has been shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the appended claims.
Claims (3)
1. The utility model provides a sewing machine zigzag seam breadth of a needle forming mechanism which characterized in that: including installing needle bar support (1) on sewing machine, one side of needle bar support (1) is provided with motor mount (2) of installing on sewing machine, be provided with needle width of cloth cam (3) on motor mount (2), the below of needle width of cloth cam (3) is provided with needle width of cloth pendulum rod (4), install on motor mount (2) through pivot (5) in the middle part of needle width of cloth pendulum rod (4), the one end and the contact of needle width of cloth cam (3) of needle width of cloth pendulum rod (4), the other end and the contact of needle bar support (1) of needle width of cloth pendulum rod (4).
2. The zigzag seam web forming mechanism of a sewing machine according to claim 1, characterized in that: the lower end of the needle bar bracket (1) is fixed with a needle bar (6), and the lower end of the needle bar (6) is connected with a machine needle (7).
3. The zigzag seam web forming mechanism of a sewing machine according to claim 1, characterized in that: the stepping motor (8) is installed on the motor fixing frame (2), and the needle amplitude cam (3) is fixed on a rotating shaft of the stepping motor (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921528557.7U CN211645613U (en) | 2019-09-12 | 2019-09-12 | Zigzag seam web forming mechanism of sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921528557.7U CN211645613U (en) | 2019-09-12 | 2019-09-12 | Zigzag seam web forming mechanism of sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211645613U true CN211645613U (en) | 2020-10-09 |
Family
ID=72681808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921528557.7U Active CN211645613U (en) | 2019-09-12 | 2019-09-12 | Zigzag seam web forming mechanism of sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211645613U (en) |
-
2019
- 2019-09-12 CN CN201921528557.7U patent/CN211645613U/en active Active
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