CN209989548U - Speed reduction type winding mechanism of sewing machine - Google Patents
Speed reduction type winding mechanism of sewing machine Download PDFInfo
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- CN209989548U CN209989548U CN201920441742.6U CN201920441742U CN209989548U CN 209989548 U CN209989548 U CN 209989548U CN 201920441742 U CN201920441742 U CN 201920441742U CN 209989548 U CN209989548 U CN 209989548U
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- winding mechanism
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Abstract
The utility model discloses a speed-reducing type winding mechanism of a sewing machine, wherein an output shaft of a servo motor is connected with a speed-reducing wheel through a driving belt, and the speed-reducing wheel is connected with a rotating wheel with a diameter larger than that of the speed-reducing wheel, so that the winding speed of a shuttle peg can be reduced under the condition of not changing the rotating speed of the servo motor; compared with the prior art, the uncontrollable factors for controlling the bobbin winding of the sewing machine main body can be reduced, so that the winding faults of the winder can be reduced, and the qualified rate of the bobbin winding is improved.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of sewing machines, in particular to a speed reduction type winding mechanism of a sewing machine.
[ background of the invention ]
At present, a rotating wheel on the existing winder is abutted against an end cover wheel on the rear end of a sewing machine main body, and the rotating wheel can rotate quickly because the diameter of the end cover wheel is larger than that of the rotating wheel; generally, the bobbin rotates along with the rotation of the rotating wheel, and as the bobbin rotates and winds the thread fast, the rotating speed of the bobbin is higher, the uncontrollable factors of the sewing machine main body for controlling the thread winding are increased; for example, the problem that the thread is easily broken when being clamped due to too high rotating speed, and the problem that the shuttle peg is easily scratched due to too high rotating speed, etc. occur, therefore, the problem that the winding speed can be reduced without reducing the rotating speed of the servo motor is very necessary to solve at present.
[ summary of the invention ]
In order to solve the problems, the invention provides a speed-reducing type winding mechanism of a sewing machine, which has the advantages of simple structure, capability of reducing the speed and the like.
In order to achieve the purpose, the invention provides the following technical scheme:
a speed-reducing type winding mechanism of a sewing machine comprises a sewing machine body 1, a servo motor 2 for providing power for the sewing machine body 1 and a bobbin winder 3 fixed on a shell of the sewing machine body 1, wherein the bobbin winder 3 comprises a shell 31, a shifting handle 32 is fixed on the outer end face of the shell 31, a rotating wheel 33 partially extending out of the shell 31 is arranged in the shell 31, an extending shaft 35 partially extending out of the shell 31 and allowing a bobbin 34 to be inserted is fixed at the center of the rotating wheel 33, a speed reducing wheel 36 smaller than the rotating wheel 33 in diameter is arranged below an output shaft 11 of the servo motor 2, the output shaft 11 is connected with the speed reducing wheel 36 through a transmission belt 9 to enable the speed reducing wheel 36 to rotate along with the rotation of the output shaft 11, and the wheel face of the rotating wheel 33 abuts against the wheel face of the speed reducing wheel 36 after the shifting handle 32 shifts upwards.
As a preferred embodiment, further defined is: the transmission ratio of the speed reducing wheel 36 to the rotating wheel 33 is 1.5-2.5.
As a preferred embodiment, further defined is: the rotating wheel 33 is a rubber wheel.
As a preferred embodiment, further defined is: an annular groove 361 is formed in the peripheral surface of the speed reducing wheel 36, and the transmission belt 9 is partially embedded in the annular groove 361.
As a preferred embodiment, further defined is: a receiving shaft 51 is fixedly provided on the sewing machine body 1, and the reduction gear 36 is fitted over the receiving shaft 51 through a rotary bearing 52 so that the reduction gear 36 rotates relative to the receiving shaft 51.
As a preferred embodiment, further defined is: a receiving shaft 51 is rotatably provided in the sewing machine body 1, and the reduction gear 36 is circumferentially fixed to the receiving shaft 51 such that the reduction gear 36 is interlocked with the receiving shaft 51.
As a preferred embodiment, further defined is: a round hole 53 having the same axis as the reduction gear 36 is formed in one end surface of the reduction gear 36, the rotating bearing 52 is disposed in the round hole 53, and a first limiting fixture block 54 and a second limiting fixture block 55 are further disposed in the round hole 53 and located on two end surfaces of the rotating bearing 52 respectively.
As a preferred embodiment, further defined is: it still includes the thread trapper 4 that can carry out the roll adjustment for spooler 3, thread trapper 4 is including regulating part 41 and adjusting bolt 43, the one end of regulating part 41 is fixed on casing 31 the strip hole 42 that runs through along its length direction is seted up to the surface department of regulating part 41, adjusting bolt 43 has passed in proper order behind spring 44, first clamping piece 45, second clamping piece 46, cushion 47, the strip hole 42 and has fixed through cooperating with the nut on regulating part 41.
As a preferred embodiment, further defined is: the sewing machine body 1 is provided with a rear end cover 12 fixed with the output shaft 11 in the circumferential direction, and the speed reducing wheel 36 is positioned right below the rear end cover 12.
The beneficial effects of the invention are as follows: the output shaft of the servo motor is connected with a speed reducing wheel through a transmission belt, and the speed reducing wheel is connected with a rotating wheel with the diameter larger than that of the speed reducing wheel, so that the winding speed of the shuttle peg can be reduced under the condition of not changing the rotating speed of the servo motor; compared with the prior art, the uncontrollable factors for controlling the bobbin winding of the sewing machine main body can be reduced, so that the winding faults of the winder can be reduced, and the qualified rate of the bobbin winding is improved.
[ description of the drawings ]
FIG. 1 is a structural diagram of the invention;
FIG. 2 is an enlarged view at A of FIG. 1;
FIG. 3 is one of the exploded views created by the present invention;
fig. 4 is an enlarged view at B of fig. 3;
FIG. 5 is a second exploded view of the present invention;
fig. 6 is a sectional view of the mounting shaft and the reduction gear after assembly.
[ detailed description ] embodiments
The invention is described in further detail below with reference to the following figures and detailed description:
as shown in fig. 1 to 6, a deceleration type thread winding mechanism of a sewing machine comprises a sewing machine body 1, a servo motor 2 for powering the sewing machine body 1, and a thread winder 3 fixed on a housing of the sewing machine body 1, the winder 3 comprises a shell 31, a shifting handle 32 is fixed on the outer end face of the shell 31, a rotating wheel 33 which partially extends out of the shell 31 is arranged in the shell 31, an extending shaft 35 which partially extends out of the shell 31 and is used for inserting the bobbin 34 is fixed at the center of the rotating wheel 33, it is characterized in that a speed reducing wheel 36 with the diameter smaller than that of the rotating wheel 33 is arranged below the output shaft 11 of the servo motor 2, the output shaft 11 is connected with the speed reducing wheel 36 through a transmission belt 9, so that the speed reducing wheel 36 rotates along with the rotation of the output shaft 11, the wheel surface of the rotating wheel 33 abuts against the wheel surface of the speed reducing wheel 36 after the shifting handle 32 is shifted upwards. Because the output shaft 11 of the servo motor 2 is connected with the speed reducing wheel 36 through the transmission belt 9, and the speed reducing wheel 36 is connected with a rotating wheel 33 with the diameter larger than that of the speed reducing wheel 36, the winding speed of the bobbin 34 can be reduced under the condition of not changing the rotating speed of the servo motor 2; compared with the prior art, the uncontrollable factors for controlling the winding of the bobbin 34 by the sewing machine main body 1 are reduced, so that the winding faults of the winder 3 can be reduced, and the qualified rate of the winding of the bobbin 34 is improved.
Preferably, in order to create the better deceleration effect of the invention, the transmission ratio of the deceleration wheel 36 to the rotating wheel 33 is 1.5-2.5; preferably, the rotating wheel 33 is a rubber wheel.
Preferably, the output shaft 11 of the servo motor 2 and the speed reducing wheel 36 have stable transmission performance, an annular groove 361 is formed on the peripheral surface of the speed reducing wheel 36, and the transmission belt 9 is partially embedded in the annular groove 361.
One of the preferred embodiments of the present invention is: a receiving shaft 51 is fixedly provided on the sewing machine body 1, and the reduction gear 36 is fitted over the receiving shaft 51 through a rotary bearing 52 so that the reduction gear 36 rotates relative to the receiving shaft 51. A round hole 53 which is coaxial with the reducing gear 36 is formed in one end face of the reducing gear 36, the rotating bearing 52 is arranged in the round hole 53, and a first limiting fixture block 54 and a second limiting fixture block 55 which are respectively located on two end faces of the rotating bearing 52 are further arranged in the round hole 53; the wall surface of the circular hole 53 is further provided with a first clamping groove for the first limiting clamping block 54 to be partially clamped in, and the circumferential surface of the bearing shaft 52 is also provided with a second clamping groove for the second limiting clamping block 55 to be partially clamped in, and the rotating bearing 52 can be axially fixed on the bearing shaft 51 through the matching between the first clamping groove and the second clamping groove, so that the speed reducing wheel 36 rotates relative to the bearing shaft 51. The second preferred embodiment of the present invention can also be designed as follows: a receiving shaft 51 is rotatably provided in the sewing machine body 1, and the reduction gear 36 is circumferentially fixed to the receiving shaft 51 such that the reduction gear 36 is interlocked with the receiving shaft 51.
Preferably, the invention also comprises a thread clamping device 4 which can adjust the distance relative to the thread winder 3, wherein the thread clamping device 4 comprises an adjusting part 41 and an adjusting bolt 43, one end of the adjusting part 41 is fixed on the shell 31, a strip-shaped hole 42 which penetrates through the adjusting part 41 along the length direction is formed in the surface of the adjusting part 41, the adjusting bolt 43 sequentially penetrates through a spring 44, a first clamping piece 45, a second clamping piece 46, a cushion block 47 and the strip-shaped hole 42 and is fixed on the adjusting part 41 through matching with a nut, and due to the adjustability of the distance between the thread clamping device 4 and the thread winder 3, the sewing machine main body 1 is convenient to use under different environments, and a certain distance is formed between the thread clamping device 4 and the thread winder 3, so that the sewing thread is prevented from knotting.
Preferably, the sewing machine body 1 is provided with a rear end cover 12 fixed with the output shaft 11 in the circumferential direction, the speed reducing wheel 36 is located right below the rear end cover 12, and the speed reducing wheel 36 is located between the rear end cover and the rotating wheel 33, so that the winding mechanism of the invention is more compact.
Claims (9)
1. A speed-reducing type winding mechanism of a sewing machine comprises a sewing machine body (1), a servo motor (2) for providing power for the sewing machine body (1) and a bobbin winder (3) fixed on a shell of the sewing machine body (1), wherein the bobbin winder (3) comprises a shell (31), a shifting handle (32) is fixed on the outer end face of the shell (31), a rotating wheel (33) partially extending out of the shell (31) is arranged in the shell (31), an extending shaft (35) partially extending out of the shell (31) and used for inserting a bobbin (34) is fixed at the center of a circle of the rotating wheel (33), the speed-reducing type winding mechanism is characterized in that a speed-reducing wheel (36) with a diameter smaller than that of the rotating wheel (33) is arranged below an output shaft (11) of the servo motor (2), and the output shaft (11) is connected with the speed-reducing wheel (36) through a transmission belt (9) to enable the speed-reducing wheel (36) to rotate along with the output shaft (11), the wheel surface of the rotating wheel (33) is abutted against the wheel surface of the speed reducing wheel (36) after the shifting handle (32) is shifted upwards.
2. A reduced-speed winding mechanism for sewing machines according to claim 1, characterized in that the transmission ratio of the reduction wheel (36) to the rotary wheel (33) is 1.5-2.5.
3. A deceleration winding mechanism for a sewing machine according to claim 1, characterized in that said rotary wheel (33) is a rubber wheel.
4. A speed-reducing winding mechanism according to any one of claims 1 to 3, wherein the speed-reducing wheel (36) has an annular groove (361) formed on its peripheral surface, and the belt (9) is partially inserted into the annular groove (361).
5. A deceleration type winding mechanism of sewing machine according to claim 4, characterized in that a bearing shaft (51) is fixedly arranged on the sewing machine main body (1), the deceleration wheel (36) is sleeved on the bearing shaft (51) through a rotating bearing (52) to make the deceleration wheel (36) rotate relative to the bearing shaft (51).
6. A deceleration type thread winding mechanism of sewing machine according to claim 4, characterized in that a bearing shaft (51) is rotatably arranged on the sewing machine main body (1), and the deceleration wheel (36) is circumferentially fixed on the bearing shaft (51) so that the deceleration wheel (36) and the bearing shaft (51) are linked together.
7. The deceleration type winding mechanism of the sewing machine according to claim 5, wherein a circular hole (53) coaxial with the deceleration wheel (36) is formed at one end surface of the deceleration wheel (36), the rotating bearing (52) is disposed in the circular hole (53), and a first limiting block (54) and a second limiting block (55) are further disposed in the circular hole (53) and located at two end surfaces of the rotating bearing (52), respectively.
8. The deceleration type winding mechanism of the sewing machine according to claim 1, characterized in that the deceleration type winding mechanism further comprises a thread clamping device (4) which can adjust distance relative to the thread winder (3), the thread clamping device (4) comprises an adjusting piece (41) and an adjusting bolt (43), one end of the adjusting piece (41) is fixed on the shell (31), a strip-shaped hole (42) which penetrates through the adjusting piece (41) along the length direction is formed in the surface of the adjusting piece (41), and the adjusting bolt (43) penetrates through a spring (44), a first clamping piece (45), a second clamping piece (46), a cushion block (47) and the strip-shaped hole (42) in sequence and then is fixed on the adjusting piece (41) through matching with a nut.
9. A speed-reducing type thread winding mechanism for a sewing machine according to claim 1, wherein a rear end cover (12) fixed circumferentially with the output shaft (11) is provided on the sewing machine body (1), and the speed-reducing wheel (36) is located right below the rear end cover (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920441742.6U CN209989548U (en) | 2019-04-02 | 2019-04-02 | Speed reduction type winding mechanism of sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920441742.6U CN209989548U (en) | 2019-04-02 | 2019-04-02 | Speed reduction type winding mechanism of sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209989548U true CN209989548U (en) | 2020-01-24 |
Family
ID=69290766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920441742.6U Active CN209989548U (en) | 2019-04-02 | 2019-04-02 | Speed reduction type winding mechanism of sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209989548U (en) |
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2019
- 2019-04-02 CN CN201920441742.6U patent/CN209989548U/en active Active
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