CN215517947U - Sewing machine - Google Patents
Sewing machine Download PDFInfo
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- CN215517947U CN215517947U CN202121347141.2U CN202121347141U CN215517947U CN 215517947 U CN215517947 U CN 215517947U CN 202121347141 U CN202121347141 U CN 202121347141U CN 215517947 U CN215517947 U CN 215517947U
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Abstract
A sewing machine. The main single-end motor that adopts when driving at present and lifting presser foot subassembly, tangent line subassembly and gauge needle subassembly action of solving, assembly difficulty and motor need just reversing like this, the not good problem of result of use. The method is characterized in that: the machine shell is provided with a double-end motor (2), a presser foot lifting component (3), a thread cutting component (4) and a needle pitch component (5); the double-end motor comprises a first output shaft (21) and a second output shaft (22) which are arranged on two sides of the motor, and the first output shaft is connected with the presser foot lifting assembly through a first transmission mechanism; the first output shaft is connected with the needle pitch assembly through a second transmission structure; and the second output shaft is connected with the tangent assembly through a third transmission mechanism. The utility model provides a sewing machine, which adopts a double-head motor, wherein a first output shaft of the double-head motor drives a presser foot lifting and needle pitch mechanism, a second output shaft of the double-head motor drives a thread cutting mechanism, the whole structure is compact, the installation is convenient, the motor can rotate by 360 degrees, the thread cutting and presser foot lifting or presser foot lifting and thread cutting can be continuously completed, and the reaction is fast.
Description
Technical Field
The utility model relates to the field of sewing equipment, in particular to a sewing machine.
Background
A sewing machine is a machine that uses one or more sewing threads to form one or more stitches in a material to be sewn, thereby interweaving or stitching one or more layers of material.
The sewing machine can sew fabrics such as cotton, hemp, silk, wool, artificial fiber and the like and products such as leather, plastic, paper and the like, and the sewed stitches are neat, beautiful, flat and firm, the sewing speed is high, and the use is simple and convenient. And derives the artistic forms of hand-push embroidery, computer embroidery, etc.
The single-end motor that present sewing machine drove and lifts presser foot subassembly, tangent line subassembly and needle distance subassembly and adopt mostly when moving, need install many driving mediums on the output shaft of motor like this and make the assembly difficult, and the motor needs just reversing moreover, and the result of use is not good.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the background art, the utility model provides a sewing machine which mainly solves the problems that the assembly is difficult, the motor needs to rotate forwards and backwards, and the using effect is poor due to the fact that a single-head motor is adopted when a presser foot lifting component, a thread cutting component and a needle pitch component are driven to act at present.
The technical scheme adopted by the utility model is as follows:
a sewing machine comprises a machine shell, wherein a double-end motor, a presser foot lifting assembly, a thread cutting assembly and a needle pitch assembly are arranged on the machine shell;
the double-end motor comprises a first output shaft and a second output shaft which are arranged on two sides of the motor, and the first output shaft is connected with the presser foot lifting assembly through a first transmission mechanism;
the first output shaft is connected with the needle pitch assembly through a second transmission structure;
and the second output shaft is connected with the tangent assembly through a third transmission mechanism.
The first transmission mechanism comprises a first eccentric transmission part, the second transmission mechanism comprises a second eccentric transmission part, and the first eccentric transmission part and the second eccentric transmission part are arranged on the transmission part.
The first eccentric transmission part is a cam arranged on the transmission part, the pressure foot lifting component comprises a first connecting rod used for driving the pressure foot lifting component to rotate, the first transmission mechanism further comprises a crank arranged opposite to the cam, and the crank is connected with the first connecting rod.
The crank is provided with a first idler wheel, and the cam enables the crank to swing by pushing the first idler wheel.
The second eccentric transmission part is a closed annular groove formed in the transmission part, the needle pitch assembly comprises a swing seat used for driving the tooth rack to move, the second transmission mechanism further comprises a second connecting rod, a rolling wheel matched with the annular groove is arranged on the second connecting rod, and the transmission part drives the second connecting rod to swing through the rolling wheel matched with the annular groove and the annular groove when rotating.
The second connecting rod is also provided with a guide groove, and the driving wheel is provided with a boss which extends into the wire guide groove and is in sliding fit with the guide groove.
The cutting assembly comprises a rotating shaft for driving the cutter to move, the third transmission mechanism comprises an eccentric transmission piece driven by a second output shaft to rotate, and the third transmission mechanism further comprises a transmission rod hinged to the shell, one end of the transmission rod is connected with the rotating shaft, and the other end of the transmission rod is opposite to the eccentric transmission piece.
The eccentric transmission part is a cam arranged on the second output shaft.
And a second roller is arranged on the transmission rod, and the eccentric transmission part enables the transmission rod to swing by pushing the second roller.
The casing bottom is equipped with the support, double-end motor with the connection can be dismantled to the support.
The first transmission mechanism comprises the first eccentric transmission part, the third transmission mechanism comprises an eccentric transmission part, the eccentric transmission part comprises a first non-action surface and a first action surface, the first eccentric transmission part comprises a second non-action surface and a second action surface, the first non-action surface is used for being matched with the tangent component when the second action surface drives the pressure lifting foot component to work, and the first action surface drives the tangent component to tangent when the second non-action surface is matched with the pressure lifting foot component.
The utility model has the beneficial effects that: the utility model provides a sewing machine, which adopts a double-head motor, wherein a first output shaft of the double-head motor drives a presser foot lifting and needle pitch mechanism, a second output shaft of the double-head motor drives a thread cutting mechanism, the whole structure is compact, the installation is convenient, the motor can rotate by 360 degrees, the thread cutting and presser foot lifting or presser foot lifting and thread cutting can be continuously completed, and the reaction is fast.
Drawings
Fig. 1 is a perspective view of an embodiment of the present invention.
Fig. 2 is a perspective view of an embodiment of the present invention.
FIG. 3 is a schematic view of a bottom body of one embodiment of the present invention.
Fig. 4 is a partial perspective view of an embodiment of the present invention.
Fig. 5 is a partial perspective view of one embodiment of the present invention.
Fig. 6 is a partial perspective view of one embodiment of the present invention.
Fig. 7 is a schematic structural view of a rotating member according to an embodiment of the present invention.
Fig. 8 is a schematic structural view of a second link according to an embodiment of the present invention.
FIG. 9 is a side view of a rotating member according to one embodiment of the present invention.
FIG. 10 is a perspective view of an eccentric drive according to one embodiment of the present invention.
Detailed Description
The utility model will be further described with reference to the accompanying drawings in which: as shown in the figure, the sewing machine comprises a machine shell 1, wherein a double-end motor 2, a presser foot lifting component 3, a thread cutting component 4 and a needle pitch component 5 are arranged on the machine shell; the double-head motor comprises a first output shaft 21 and a second output shaft 22 which are arranged on two sides of the motor, and the first output shaft is connected with the presser foot lifting assembly through a first transmission mechanism; the first output shaft is connected with the needle pitch assembly through a second transmission structure; and the second output shaft is connected with the tangent assembly through a third transmission mechanism. How the presser foot lifting component works is the prior art, as one of the optional aspects, the connecting plate 34 can be driven to rotate through the first connecting rod, the connecting plate pulls the pull rod 35 to drive the lifting plate 36 to rotate so as to realize the presser foot lifting, the thread cutting component can be a rotating shaft 42 to rotate, a cutter 41 connected with one end of the rotating shaft is driven to rotate so as to realize the thread cutting, and the needle pitch component is driven to move by the rotation of the swinging seat 52. This double-end motor can install in the bottom terminal surface of casing, specifically can be the lower terminal surface of base.
In the present invention, as shown in the figure, the present invention further includes a transmission member 6 in linkage connection with the first output shaft, the first transmission mechanism includes a first eccentric transmission portion 61, the second transmission mechanism includes a second eccentric transmission portion 62, and the first eccentric transmission portion 61 and the second eccentric transmission portion 62 are disposed on the transmission member. Can drive two mechanism actions through a driving medium, the structure is compacter, and this first eccentric drive portion and second eccentric drive all can be for structures such as cam, cam groove, crank.
In the present invention, as shown in the figure, the first eccentric transmission part is a cam arranged on the transmission member, the presser foot lifting assembly includes a first connecting rod 32 for driving the presser foot lifting assembly 31 to rotate, the first transmission mechanism further includes a crank 33 arranged opposite to the cam, and the crank is connected with the first connecting rod. The first eccentric transmission part is a cam in this embodiment, the crank 33 is hinged to the fixing plate 330 (or hinged to the inner wall of the housing) through one end, and when the cam rotates, the cam pushes one end of the crank 33 to move, so as to drive the first link to move, thereby realizing the function of lifting the presser foot.
In the present invention, as shown in the drawing, the crank is provided with a first roller 331, and the cam swings the crank by pushing the first roller. Through the motion of first gyro wheel, the whole operation is more steady, is difficult to damage moreover.
In the present invention, as shown in the figure, the second eccentric transmission part is a closed annular groove formed on the transmission member, the needle pitch assembly includes a swing seat 52 for driving the tooth rack 51 to move, the second transmission mechanism further includes a second connecting rod 53, a rolling wheel 54 matched with the annular groove is arranged on the second connecting rod, and the transmission member drives the second connecting rod to swing through the matched rolling wheel and the annular groove when rotating. The annular groove is provided with a first stitch pitch zero position 540, a backstitch stitch pitch maximum position 541, a second stitch pitch zero position 542, a forward stitch pitch maximum position 543 and a third stitch pitch zero position, and an idle stroke section is arranged between the third stitch pitch zero position and the first stitch pitch zero position.
In the present invention, as shown in the figure, the second link is further provided with a guide groove 531, and the driving wheel is provided with a boss 64 extending into the wire guide groove and slidably fitting with the guide groove. The operation is more stable.
In the present invention, as shown in the figure, the cutting assembly includes a rotating shaft 42 for driving the cutter 41 to move, the third transmission mechanism includes an eccentric transmission member 43 driven by the second output shaft to rotate, and further includes a transmission rod 44 hinged to the housing, one end of the transmission rod is connected to the rotating shaft, and the other end of the transmission rod is opposite to the eccentric transmission member. The transmission rod is hinged through a hinge shaft 440 arranged on the shell, when the eccentric transmission part acts, one end of the transmission rod is driven to act, the cutter is driven to rotate, the reset of the transmission rod can be realized through a tension spring 45, specifically, a tension spring fixing plate 46 can be arranged in the shell, one end of the tension spring is fixed on the tension spring fixing plate, and the other end of the tension spring is pulled on the transmission rod 44.
In the present invention, as shown in the figure, the eccentric transmission member is a cam provided on the second output shaft. The crank can be realized by adopting a structure such as a crank, and when the crank is adopted, one end of the crank is arranged opposite to the transmission rod.
In the present invention, as shown in the figure, the driving rod is provided with a second roller 441, and the eccentric driving member drives the driving rod to swing by pushing the second roller.
In the utility model, as shown in the figure, the bottom of the shell is provided with a bracket 7, and the double-head motor is detachably connected with the bracket. The support can be connected in the casing bottom through the screw, and the support axial is equipped with the mounting groove that is used for the motor to pack into, and the motor is connected through the connecting hole 20 on screw and the motor after packing into.
In the present invention, as shown in the drawing, the first transmission mechanism includes the first eccentric transmission part, the third transmission mechanism includes an eccentric transmission part, the eccentric transmission part includes a first non-action surface 431 and a first action surface 432, the first eccentric transmission part includes a second non-action surface 621 and a second action surface 622, the first non-action surface is used for cooperating with the tangent line component when the second action surface drives the presser foot lifting component to work, and the first action surface drives the tangent line component tangent line when the second non-action surface cooperates with the presser foot lifting component. This first eccentric drive division and eccentric driving medium can realize through the action face and the no action face of reasonable setting two cams that the motor 360 degrees lifts the presser foot with the tangent line that can be downed, first action face during operation (tangent line promptly) promptly, the second action face is inoperative this moment, by the contact of second no action face with lifting presser foot subassembly, it is out of work to lift the presser foot this moment, when the second action face with lift the contact of presser foot subassembly, lift the presser foot work, first no action face and tangent line subassembly contact this moment, the tangent line subassembly is out of work, the tangent line lifts the presser foot or lifts the presser foot tangent line and can link up the completion, the reaction is fast, as preferred scheme, first action face and first no action face are connected and are formed confined annular face, second action face and the connection of second no action face form confined annular face.
The embodiments described with reference to the drawings are illustrative and are intended to be illustrative of the utility model and should not be construed as limiting the utility model. The examples should not be construed as limiting the present invention, but any modifications made based on the spirit of the present invention should be within the scope of protection of the present invention.
Claims (10)
1. A sewing machine comprising a machine shell (1), characterized in that: the machine shell is provided with a double-end motor (2), a presser foot lifting component (3), a thread cutting component (4) and a needle pitch component (5);
the double-end motor comprises a first output shaft (21) and a second output shaft (22) which are arranged on two sides of the motor, and the first output shaft is connected with the presser foot lifting assembly through a first transmission mechanism;
the first output shaft is connected with the needle pitch assembly through a second transmission structure;
the second output shaft is connected with the tangent assembly through a third transmission mechanism;
the first transmission mechanism comprises a first eccentric transmission part (61), the third transmission mechanism comprises an eccentric transmission part (43), the eccentric transmission part comprises a first non-action surface (431) and a first action surface (432), the first eccentric transmission part comprises a second non-action surface (621) and a second action surface (622), the first non-action surface is used for being matched with the tangent component when the second non-action surface drives the pressure lifting foot component to work, and the first action surface drives the tangent component to tangent when the second non-action surface is matched with the pressure lifting foot component.
2. A sewing machine according to claim 1, wherein: still include with driving medium (6) that first output shaft linkage is connected, second drive mechanism includes second eccentric drive portion (62), first eccentric drive portion (61) and second eccentric drive portion (62) are located on the driving medium.
3. A sewing machine according to claim 2, wherein: the first eccentric transmission part is a cam arranged on the transmission part, the pressure foot lifting component comprises a first connecting rod (32) used for driving the pressure foot lifting component (31) to rotate, the first transmission mechanism further comprises a crank (33) arranged opposite to the cam, and the crank is connected with the first connecting rod.
4. A sewing machine according to claim 3, wherein: the crank is provided with a first roller (331), and the cam enables the crank to swing by pushing the first roller.
5. A sewing machine according to claim 2, wherein: the eccentric transmission portion of second does the confined annular groove that is equipped with on the driving medium, the gauge needle subassembly is including being used for driving swing seat (52) of braces (51) activity, second drive mechanism still includes second connecting rod (53), be equipped with on the second connecting rod with roll wheel (54) that the annular groove matches, drive the swing of second connecting rod through matched with roll wheel and annular groove when the driving medium rotates.
6. A sewing machine according to claim 4, characterized in that: the second connecting rod is also provided with a guide groove (531), and the driving wheel is provided with a boss (64) which extends into the wire guide groove and is in sliding fit with the guide groove.
7. A sewing machine according to claim 1, wherein: the cutting line assembly comprises a rotating shaft (42) for driving the cutter (41) to move, and further comprises a transmission rod (44) hinged to the shell, one end of the transmission rod is connected with the rotating shaft, and the other end of the transmission rod is opposite to the eccentric transmission part.
8. A sewing machine according to claim 7, wherein: and a second roller (441) is arranged on the transmission rod, and the eccentric transmission piece enables the transmission rod to swing by pushing the second roller.
9. A sewing machine according to claim 7, wherein: the eccentric transmission part is a cam arranged on the second output shaft.
10. A sewing machine according to claim 1, wherein: the casing bottom is equipped with support (7), double-end motor with the connection can be dismantled to the support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121347141.2U CN215517947U (en) | 2021-06-17 | 2021-06-17 | Sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121347141.2U CN215517947U (en) | 2021-06-17 | 2021-06-17 | Sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215517947U true CN215517947U (en) | 2022-01-14 |
Family
ID=79808736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121347141.2U Active CN215517947U (en) | 2021-06-17 | 2021-06-17 | Sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215517947U (en) |
-
2021
- 2021-06-17 CN CN202121347141.2U patent/CN215517947U/en active Active
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