CN216585551U - Thread-shifting mechanism of sewing machine - Google Patents
Thread-shifting mechanism of sewing machine Download PDFInfo
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- CN216585551U CN216585551U CN202122753173.9U CN202122753173U CN216585551U CN 216585551 U CN216585551 U CN 216585551U CN 202122753173 U CN202122753173 U CN 202122753173U CN 216585551 U CN216585551 U CN 216585551U
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- 230000007246 mechanism Effects 0.000 title claims abstract description 28
- 238000009958 sewing Methods 0.000 title claims abstract description 15
- 230000005540 biological transmission Effects 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims description 2
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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Abstract
The utility model discloses a thread pulling mechanism of a sewing machine, which comprises a cam, a wire spool, a connecting block and a transmission rod, wherein an annular sliding groove is formed in the side part of the cam, a sliding part with the diameter equal to the width of the sliding groove is also arranged in the thread pulling mechanism, a connecting part is arranged on the sliding part, the transmission rod is connected with the sliding part through the connecting block of an integrated structure, and the sliding part is arranged in the sliding groove. The wire pulling mechanism comprises the cam, the rotating rod, the connecting block, the sliding part and the transmission rod, and compared with the prior art, the wire pulling mechanism has fewer parts and is more efficient and convenient to assemble and disassemble.
Description
Technical Field
The utility model relates to the technical field of sewing machines, in particular to a thread shifting mechanism of a sewing machine.
Background
In the thread-shifting mechanism of the prior art sewing machine, as disclosed in chinese patent publication No. CN100543214C, the free end of the contact rod 40 of the thread-shifting mechanism abuts against the end-side curved surface 42 of the axially curved surface disk 39, and the contact rod 40 is pressed against the curved surface 42 by a pre-tensioned helical compression spring 43. The compression spring 43 bears on one side against the contact lever 40 and on the other side against an adjusting screw 44 mounted in the shuttle support housing 11, so that by adjusting the pretension of the compression spring the spring force of the contact lever against the curved surface 42 is adjusted. So that the contact lever 40 and the opening lever 32 move in unison when the curved disc 39 rotates.
The thread shifting mechanism has the advantages that the number of parts of the mechanism is relatively large, and small parts such as springs are easy to lose in the assembling and disassembling processes, so that the thread shifting mechanism is very inconvenient, fewer parts are installed, the production efficiency is high, and the thread shifting mechanism is easy to assemble.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
In order to solve the problems, the utility model provides the thread shifting mechanism of the sewing machine, which has the advantages of simple structure, fewer parts, easy assembly, easy disassembly and high production efficiency.
(II) technical scheme
The utility model discloses a thread pulling mechanism of a sewing machine, which comprises a cam, a wire spool, a connecting block and a transmission rod, wherein an annular sliding groove is formed in the side part of the cam, a continuous convex part, a continuous concave part and inclined parts for connecting the two ends of the convex part and the concave part are arranged in the annular sliding groove, a sliding part with the diameter equal to the width of the sliding groove is further arranged in the thread pulling mechanism, a connecting part is arranged on the sliding part, the transmission rod and the sliding part are connected through the connecting block of an integrated structure, and the sliding part is arranged in the sliding groove.
In the utility model, the side part of the connecting block is provided with a first through groove which penetrates through the connecting block, and the top part of the connecting block is provided with a second through groove which penetrates through the connecting block and is communicated with the first through groove.
In the utility model, the connecting block is connected with the transmission rod through the second through groove and is connected with the sliding part through the first through groove.
In the utility model, the sliding part and the connecting part are integrally connected or detachably connected.
In the utility model, when the sliding part and the connecting part are detachably connected, the center of the sliding part is provided with a through connecting groove, one end of the connecting part is inserted into the sliding part, and the other end of the connecting part is inserted into the first through groove.
In the utility model, the cam is sleeved on the rotating rod.
(III) advantageous effects
Compared with the prior art, the utility model has the beneficial effects that:
(1) the wire pulling mechanism comprises the cam, the rotating rod, the connecting block, the sliding part and the transmission rod, and compared with the prior art, the wire pulling mechanism has fewer parts and is more efficient and convenient to assemble and disassemble.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic internal perspective view of a thread take-up mechanism according to embodiment 1;
FIG. 2 is a schematic view of a connector block according to embodiment 1;
fig. 3 is a schematic view (separated body) of the connection structure of the sliding part and the connecting part in embodiment 1;
FIG. 4 is a schematic perspective view of the thread take-up mechanism according to embodiment 1;
fig. 5 is a schematic (integral) view of the connection structure of the sliding portion and the connecting portion in embodiment 2.
10. The wire winding device comprises a cam 11, sliding grooves 111, a protruding portion 112, a recessed portion 113, an inclined portion 20, a sliding portion 21, a connecting portion 211, a limiting portion 30, a connecting block 31, a first through groove 32, a second through groove 40, a transmission rod 41, a hook 50, a rotating rod 60, a shell 61 and a wire winding disc.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
The thread-pulling mechanism of the sewing machine shown in fig. 1-4 comprises a cam 10, a wire spool 61, a rotating rod 50 inserted through the cam 10, a connecting block 30, a housing 60 for containing components, and a sliding part 20 and a transmission rod 40 which are arranged on the connecting block 30, wherein the cam 10 is sleeved on the rotating rod 50. The sliding part 20 is inserted into the connecting block 30 through the connecting part 21, that is, the center of the sliding part 20 is provided with a notch connected with the connecting part 21, and the end of the connecting block 30 is provided with a first through groove 31. And the connection portion 21 is a connection rod of a cylindrical structure. The connecting portion 21 is connected one end with the sliding portion 20 and is still equipped with the level and outwards extends the spacing portion 211 that sets up to prevent that the sliding portion 20 from droing, and promptly after connecting portion 21 inserts sliding portion 20, spacing portion 211 and the top butt of sliding portion 20 are pegged graft again and are put in logical groove one 31.
Further, the top of the connecting block 30 is provided with a second through groove 32 connected with the transmission rod 40, and the second through groove 32 and the first through groove 31 are perpendicular to each other and are communicated. The transmission rod 40 is vertically inserted into the second through groove 32, and one end of the transmission rod is provided with a hook 41.
Further, the side of the cam 10 is provided with a continuous annular slide groove 11, a convex portion 111 and a concave portion 112 are provided in the slide groove 11, and both ends of the convex portion 111 and the concave portion 112 are connected to each other by an inclined portion 113. I.e. the annular slide 11 is provided with a curved bend, the cam 10 is connected perpendicular to the rotary rod 50, and the rotary rod 50 is also perpendicular to the transmission rod 40.
The working principle is as follows: the sliding part 20 is placed in the sliding slot 11, the cam 10 is rotated by the rotating rod 50, and when the sliding part 20 slides to the convex part 111 and the concave part 112, the transmission rod 40 is rotated by a certain angle by the connecting block 30.
Example 2
As shown in fig. 5, the difference from embodiment 1 is that the sliding portion 20 and the connecting portion 21 are of an integral structure, that is, the connecting portion 21 is a columnar structure in which the sliding portion 20 extends vertically downward so as to be inserted into the first through groove 31 of the connecting block 30.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention and do not limit the spirit and scope of the present invention. Various modifications and improvements of the technical solutions of the present invention may be made by those skilled in the art without departing from the design concept of the present invention, and the technical contents of the present invention are all described in the claims.
Claims (6)
1. A thread-pulling mechanism of a sewing machine comprises a cam (10), a connecting block (30) and a transmission rod (40), wherein the side part of the cam (10) is provided with an annular chute (11), the annular chute (11) is internally provided with a continuous convex part (111), a concave part (112) and an inclined part (113) for connecting the two ends of the convex part (111) and the concave part (112),
the method is characterized in that:
still be equipped with diameter and the equal sliding part (20) of spout (11) width in dialling line mechanism, be equipped with connecting portion (21) on sliding part (20), transfer line (40) are connected just through connecting block (30) of integral type structure with sliding part (20) set up in spout (11).
2. The thread take-up mechanism of a sewing machine according to claim 1, characterized in that: the side part of the connecting block (30) is provided with a first through groove (31) which penetrates through the connecting block, and the top part of the connecting block is provided with a second through groove (32) which penetrates through the connecting block and is communicated with the first through groove (31).
3. The thread take-up mechanism of a sewing machine according to claim 2, characterized in that: the connecting block (30) is connected with the transmission rod (40) through the second through groove (32) and is connected with the sliding part (20) through the first through groove (31).
4. The thread take-up mechanism of a sewing machine according to claim 1, characterized in that: the sliding part (20) and the connecting part (21) are connected in an integrated manner or detachably.
5. The thread take-up mechanism of a sewing machine according to claim 4, wherein: the sliding part (20) and the connecting part are detachably connected, a through connecting groove is formed in the center of the sliding part (20), one end of the connecting part is connected with the sliding part (20) in an inserting mode, and the other end of the connecting part is connected into the first through groove (31) in an inserting mode.
6. The thread take-up mechanism of a sewing machine according to claim 1, characterized in that: the cam (10) is sleeved on the rotating rod (50).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122753173.9U CN216585551U (en) | 2021-11-11 | 2021-11-11 | Thread-shifting mechanism of sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122753173.9U CN216585551U (en) | 2021-11-11 | 2021-11-11 | Thread-shifting mechanism of sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216585551U true CN216585551U (en) | 2022-05-24 |
Family
ID=81644219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122753173.9U Active CN216585551U (en) | 2021-11-11 | 2021-11-11 | Thread-shifting mechanism of sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216585551U (en) |
-
2021
- 2021-11-11 CN CN202122753173.9U patent/CN216585551U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A thread-pulling mechanism for a sewing machine Effective date of registration: 20220904 Granted publication date: 20220524 Pledgee: Zhejiang Tailong Commercial Bank Co.,Ltd. Wenzhou Yueqing Hongqiao small and micro enterprise franchise sub branch Pledgor: Yueqing Huapu sewing machine technology Co.,Ltd. Registration number: Y2022330002100 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |