CN211689458U - Needle pitch adjusting mechanism of sewing machine - Google Patents

Needle pitch adjusting mechanism of sewing machine Download PDF

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Publication number
CN211689458U
CN211689458U CN201922501083.3U CN201922501083U CN211689458U CN 211689458 U CN211689458 U CN 211689458U CN 201922501083 U CN201922501083 U CN 201922501083U CN 211689458 U CN211689458 U CN 211689458U
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China
Prior art keywords
feed
feeding
needle pitch
bevel gear
sewing machine
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Application number
CN201922501083.3U
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Chinese (zh)
Inventor
戴慧琪
张伟伟
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Zhejiang Maqi Sewing Machine Co Ltd
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Zhejiang Maqi Sewing Machine Co Ltd
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Priority to CN201922501083.3U priority Critical patent/CN211689458U/en
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Abstract

The utility model provides a needle pitch adjustment mechanism of sewing machine belongs to sewing machine technical field. It has solved the current small problem of gauge needle adjustment range. The needle pitch adjusting mechanism of the sewing machine comprises a feeding swing plate seat and a motor, wherein a feeding swing plate seat right pin is arranged on the feeding swing plate seat, a driving bevel gear is arranged at the outer end part of a rotating shaft of the motor, a driven bevel gear is arranged at the outer end part of the feeding swing plate seat right pin, and the driving bevel gear is meshed with the driven bevel gear. The rotating speed output by the motor of the structure is reduced through the driving bevel gear and the driven bevel gear and then is transmitted to the right pin of the feeding swing plate seat, the swing speed of the feeding swing plate seat is reduced, the swing amplitude of the feeding swing plate seat is easy to control, the adjustment of the needle pitch is controllable, the large needle pitch or the small needle pitch can be adjusted according to actual requirements, and the adjustment range of the needle pitch is enlarged.

Description

Needle pitch adjusting mechanism of sewing machine
Technical Field
The utility model belongs to the technical field of sewing machine, a stitch length adjustment mechanism of sewing machine is related to.
Background
The sewing machine is a machine which uses one or more sewing threads to form one or more stitches on a sewing material to enable one or more layers of sewing materials to be interwoven or sewn, and is mainly used for sewing fabrics such as cotton, hemp, silk, wool, artificial fiber and the like and products such as leather, plastics, paper and the like, and the sewn stitches are tidy, beautiful, flat and firm, the sewing speed is high, and the use is simple and convenient. In the sewing process of the sewing machine, according to different sewing requirements, the stitch length needs to be adjusted so that the sewn seam is attractive and firm, and the traditional sewing machine generally adopts the manual adjustment of the stitch length.
In order to improve the convenience of the stitch length adjustment, the chinese patent net discloses a stitch length adjustment mechanism and a sewing machine [ grant No.: CN209722462U, including main shaft and pay-off axle, the main shaft is connected with the one end of pay-off connecting rod through the pay-off eccentric wheel, the other end of pay-off connecting rod rotates and connects on the pay-off connecting rod round pin, the pay-off connecting rod round pin is connected with pay-off swing plate seat through the pay-off short swing board, through pay-off long swing board with pay-off connecting rod crank connection, pay-off connecting rod crank sets firmly on the pay-off axle, pay-off swing plate seat rotates and connects on the bottom plate through pay-off swing seat right round pin, and pay-off swing plate seat still is connected with step motor through pay-off swing seat pivot, step motor drives pay-off swing plate seat through pay-off swing seat pivot and rotates around the axis of pay.
When the stitch length is adjusted, the stepping motor outputs power to directly drive the feeding swing seat rotating shaft to rotate, the feeding swing seat rotating shaft drives the feeding swing plate seat to swing after rotating to achieve stitch length adjustment, and the output rotating speed of the stepping motor is high and directly acts on the feeding swing plate seat to cause the swing amplitude of the feeding swing plate seat to be too large, so that the stitch length adjusting mechanism can only achieve large stitch length adjustment, cannot achieve short stitch length adjustment, and is limited in application range.
Disclosure of Invention
The utility model aims at solving the problems in the prior art, and provides a needle pitch adjusting mechanism of a sewing machine, which aims to solve the technical problems that: how to increase the adjustment range of the needle pitch.
The purpose of the utility model can be realized by the following technical proposal:
the needle pitch adjusting mechanism of the sewing machine comprises a feeding swing plate seat and a motor, wherein a feeding swing plate seat right pin is arranged on the feeding swing plate seat.
The needle pitch adjusting mechanism has the following needle pitch adjusting principle: the motor works to enable the rotating shaft to rotate, the rotating shaft drives the driving bevel gear to rotate after rotating, the driving bevel gear drives the driven bevel gear to rotate, the driven bevel gear drives the right pin of the feeding swing plate seat to rotate, and then the feeding swing plate seat is driven to swing for a certain angle, and the purpose of adjusting the needle pitch is achieved. The driving bevel gear and the driven bevel gear are meshed to form a speed reduction gear set, the rotating speed output by the motor is reduced through the driving bevel gear and the driven bevel gear and then is transmitted to the right pin of the feeding swing plate seat, the swing speed of the feeding swing plate seat is reduced, the swing amplitude of the feeding swing plate seat is easy to control, the adjustment of the needle pitch is controllable, the large needle pitch or the small needle pitch can be adjusted according to actual requirements, and the adjustment range of the needle pitch is enlarged.
In the above-mentioned needle pitch adjustment mechanism of a sewing machine, the sewing machine includes the casing, and this needle pitch adjustment mechanism still includes the mounting bracket of fixing on the casing, the motor is fixed on the mounting bracket. Through the arrangement of the structure, the motor is positioned on the shell through the mounting frame, the positioning of the motor is stable and firm, and the motor is convenient to install.
In foretell gauge needle adjustment mechanism of sewing machine, the mounting bracket includes diaphragm and the riser that the upper end is connected with the diaphragm, the motor is fixed on the diaphragm and the diaphragm is passed to the outer end of the pivot of motor, the riser is passed to the outer end of pay-off swing plate seat right side round pin. The driving bevel gear is arranged at the outer end of the rotating shaft, the driven bevel gear is arranged at the outer end of the right pin of the feeding swing plate seat, and after the structure is arranged, the driving bevel gear and the driven bevel gear are both positioned in the mounting frame, so that the structure of the needle distance adjusting mechanism is compact by utilizing the space in the mounting frame.
In the stitch length adjusting mechanism of a sewing machine described above, the vertical plate is fixed to the housing by a fastener. The installation of the installation frame of the structure is simple, convenient and quick.
In the needle pitch adjusting mechanism of the sewing machine, the needle pitch adjusting mechanism further comprises a feed lifting tooth connecting rod, a feed lifting tooth connecting rod crank, a feeding shaft, a feed lifting tooth shaft, a tooth frame assembly, a feed connecting rod, a feed long swinging plate, a feed short swinging plate and a feed connecting rod crank, wherein one end of the feed lifting tooth connecting rod is connected with the feed lifting tooth connecting rod crank, one end of the feed lifting tooth shaft is fixedly connected with the feed lifting tooth connecting rod crank, the other end of the feed lifting tooth shaft is connected with the tooth frame assembly, one end of the feed short swinging plate is hinged with the feed swinging plate seat, the other end of the feed short swinging plate is hinged with one end of the feed long swinging plate and one end of the feed connecting rod, the other end of the feed shaft is hinged with the feed connecting rod crank, and the other end of the feed shaft is connected with the tooth frame assembly. Through the arrangement of the structure, after the motor drives the feeding swing plate seat to swing through the driving bevel gear and the driven bevel gear, the swing amplitude of the feeding shaft is changed through the feeding connecting rod, the feeding short swing plate, the feeding long swing plate and the feeding connecting rod crank, so that the needle pitch adjustment is realized.
Compared with the prior art, the utility model discloses a sewing machine's gauge needle adjustment mechanism has following advantage: the structure forms a speed reduction gear set by meshing the driving bevel gear and the driven bevel gear, the rotating speed output by the rotation of the motor is reduced by the driving bevel gear and the driven bevel gear and then is transmitted to the right pin of the feeding swing plate seat, the swing speed of the feeding swing plate seat is reduced, the swing amplitude of the feeding swing plate seat is easy to control, the adjustment of the needle pitch is controllable, the large needle pitch or the small needle pitch can be adjusted according to actual requirements, and the adjustment range of the needle pitch is enlarged.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic diagram of the explosion structure of the present invention.
Fig. 3 is a perspective view of the sewing machine.
In the figure, 1, a feeding swing plate seat; 2. a motor; 21. a rotating shaft; 3. a feeding swing plate seat right pin; 4. a driving bevel gear; 5. a driven bevel gear; 6. a housing; 7. a mounting frame; 71. a transverse plate; 72. a vertical plate; 8. a feed lifting connecting rod; 9. a feed lifting connecting rod crank; 10. a feed shaft; 11. a feed lifting shaft; 12. a dental articulator assembly; 13. a feeding connecting rod; 14. feeding a long swing plate; 15. feeding a short swing plate; 16. a feeding connecting rod crank.
Detailed Description
The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
As shown in figures 1, 2 and 3, the needle pitch adjusting mechanism of the sewing machine comprises a machine shell 6, the needle pitch adjusting mechanism comprises a feeding swing plate seat 1, a motor 2, a mounting frame 7, a feed lifting connecting rod 8, a feed lifting connecting rod crank 9, a feed shaft 10, a feed lifting rod shaft 11, a feed lifting frame component 12, a feed connecting rod 13, a feeding long swing plate 14, a feeding short swing plate 15 and a feed connecting rod crank 16, one end of the feed lifting connecting rod 8 is connected with the feed lifting connecting rod crank 9, one end of the feed lifting connecting rod 11 is fixedly connected with the feed lifting connecting rod crank 9, the other end of the feed lifting rod shaft 11 is connected with the feed lifting frame component 12, one end of the feeding short swing plate 15 is hinged with the feeding swing plate seat 1, the other end of the feed short swing plate 15 is hinged with one end of the feeding long swing plate 14 and one end of the feed connecting rod 13, the other end of the feed long swing plate 14 is hinged with the feed connecting rod crank 16, one end of the feed shaft 10 is, the other end of the feed shaft 10 is connected to a dental articulator assembly 12.
As shown in fig. 1 and 2, a feeding swing plate seat right pin 3 is arranged on the feeding swing plate seat 1, the mounting frame 7 includes a horizontal plate 71 and a vertical plate 72, the upper end of the vertical plate 72 is connected with the horizontal plate 71, the vertical plate 72 is fixed on the machine shell 6 through a fastener, the motor 2 is vertically arranged and fixed on the horizontal plate 71, the outer end of the rotating shaft 21 of the motor 2 penetrates through the horizontal plate 71, the outer end of the feeding swing plate seat right pin 3 penetrates through the vertical plate 72, a driving bevel gear 4 is arranged at the outer end of the rotating shaft 21 of the motor 2, a driven bevel gear 5 is arranged at the outer end of the feeding swing plate seat right pin 3, and the. The motor 2 drives the feeding swing plate seat right pin 3 to rotate through the driving bevel gear 4 and the driven bevel gear 5, and further drives the feeding swing plate seat 1 to swing, the swing amplitude of the feeding shaft 10 is changed through the feeding connecting rod 13, the feeding short swing plate 15, the feeding long swing plate 14 and the feeding connecting rod crank 16 to realize needle pitch adjustment, the rotating speed output by the motor 2 in rotation is reduced through the driving bevel gear 4 and the driven bevel gear 5 and then is transmitted to the feeding swing plate seat right pin 3, the swing speed of the feeding swing plate seat 1 is reduced, the swing amplitude of the feeding swing plate seat 1 is easy to control, the adjustment of the needle pitch is controllable, large needle pitch or small needle pitch can be adjusted according to actual requirements, and the adjustment range of the needle pitch is expanded.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims (5)

1. The utility model provides a sewing machine's gauge needle adjustment mechanism, includes pay-off swing plate seat (1) and motor (2), be provided with pay-off swing plate seat right round pin (3) on pay-off swing plate seat (1), its characterized in that, the outer tip of pivot (21) of motor (2) is provided with initiative bevel gear (4), be provided with driven bevel gear (5) on the outer tip of pay-off swing plate seat right round pin (3), initiative bevel gear (4) and driven bevel gear (5) meshing.
2. A needle pitch adjusting mechanism of a sewing machine according to claim 1, wherein the sewing machine comprises a housing (6), the needle pitch adjusting mechanism further comprises a mounting bracket (7) fixed to the housing (6), and the motor (2) is fixed to the mounting bracket (7).
3. The needle pitch adjusting mechanism of the sewing machine according to claim 2, characterized in that the mounting frame (7) comprises a transverse plate (71) and a vertical plate (72) connected with the transverse plate (71) at the upper end, the motor (2) is fixed on the transverse plate (71) and the outer end of the rotating shaft (21) of the motor (2) passes through the transverse plate (71), and the outer end of the feeding swing plate seat right pin (3) passes through the vertical plate (72).
4. A needle pitch adjusting mechanism of a sewing machine according to claim 3, wherein the riser (72) is fixed to the housing (6) by a fastener.
5. The needle pitch adjusting mechanism of a sewing machine according to claim 1, 2 or 3, characterized in that the needle pitch adjusting mechanism further comprises a feed lifting tooth connecting rod (8), a feed lifting tooth connecting rod crank (9), a feed shaft (10), a feed lifting tooth shaft (11), a feed rack assembly (12), a feed connecting rod (13), a feed long oscillating plate (14), a feed short oscillating plate (15) and a feed connecting rod crank (16), wherein one end of the feed lifting tooth connecting rod (8) is connected with the feed lifting tooth connecting rod crank (9), one end of the feed lifting tooth shaft (11) is fixedly connected with the feed lifting tooth connecting rod crank (9), the other end of the feed lifting tooth shaft (11) is connected with the feed rack assembly (12), one end of the feed short oscillating plate (15) is hinged with the feed oscillating plate base (1), the other end of the feed short oscillating plate (15) is hinged with one end of the feed long oscillating plate (14) and one end of the feed connecting rod (13), the other end of the feeding long swinging plate (14) is hinged with a feeding connecting rod crank (16), one end of the feeding shaft (10) is fixedly connected with the feeding connecting rod crank (16), and the other end of the feeding shaft (10) is connected with the tooth frame component (12).
CN201922501083.3U 2019-12-31 2019-12-31 Needle pitch adjusting mechanism of sewing machine Active CN211689458U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201922501083.3U CN211689458U (en) 2019-12-31 2019-12-31 Needle pitch adjusting mechanism of sewing machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201922501083.3U CN211689458U (en) 2019-12-31 2019-12-31 Needle pitch adjusting mechanism of sewing machine

Publications (1)

Publication Number Publication Date
CN211689458U true CN211689458U (en) 2020-10-16

Family

ID=72798541

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201922501083.3U Active CN211689458U (en) 2019-12-31 2019-12-31 Needle pitch adjusting mechanism of sewing machine

Country Status (1)

Country Link
CN (1) CN211689458U (en)

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