CN215829025U - Novel double-cam thread trimming, thread loosening and presser foot lifting mechanism and flat seaming machine - Google Patents
Novel double-cam thread trimming, thread loosening and presser foot lifting mechanism and flat seaming machine Download PDFInfo
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- CN215829025U CN215829025U CN202122480503.1U CN202122480503U CN215829025U CN 215829025 U CN215829025 U CN 215829025U CN 202122480503 U CN202122480503 U CN 202122480503U CN 215829025 U CN215829025 U CN 215829025U
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- presser foot
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Abstract
The utility model belongs to the technical field of sewing machines, and particularly relates to a novel double-cam thread trimming, thread loosening and presser foot lifting mechanism and a flat seaming machine, which comprise a machine body, wherein a stepping motor is transversely arranged in the machine body, one side of the machine body is provided with a controller, an output shaft of the stepping motor extends out of the machine body and is provided with a driving piece, and two ends of the driving piece are respectively formed with an arc-shaped lifting part I and an arc-shaped lifting part II; the lower end of the trimming action plate is connected with a cutter group connecting assembly, the cutter group connecting assembly is connected with a trimming assembly, and the trimming action plate is provided with a second pushing part for pushing the second arc-shaped lifting part; the controller controls the stepping motor to rotate forwards or backwards, the arc-shaped lifting parts at the two ends of the driving piece respectively drive the presser foot action plate and the thread trimming action plate so as to carry out the actions of lifting the presser foot, trimming and loosening the thread, and the thread trimming connecting rod assembly is simple in structure, convenient to assemble, disassemble and maintain and low in cost.
Description
Technical Field
The utility model relates to the technical field of sewing machines, in particular to a novel double-cam thread trimming, thread loosening and presser foot lifting mechanism and a flat seaming machine.
Background
At present, in the sewing machine industry, more and more manufacturers adopt a stepping motor to drive a thread cutting mechanism and a presser foot lifting mechanism. A stepping motor is arranged on the back or the bottom of the sewing machine, and the thread cutting mechanism and the presser foot lifting mechanism are respectively controlled by the forward rotation and the reverse rotation of the stepping motor.
Like chinese utility model, patent number CN201721423924.8, the disclosed sewing machine is with trimming, pine line and lift presser foot action drive arrangement and sewing machine, only realizes trimming, pine line and lift the drive of presser foot action through one set of drive arrangement, has reduced part quantity, has simplified drive arrangement's structure to alleviateed drive arrangement's weight, made its miniaturization, made things convenient for drive arrangement's installation.
Although the structure is simple, the whole accessory process has high processing precision requirement, the production is inconvenient and the noise treatment is complicated.
Disclosure of Invention
The utility model aims to provide a novel double-cam thread trimming, thread loosening and presser foot lifting mechanism and a flat seaming machine, which solve the problems of noise, wear resistance and driving structure in the prior art through an arc-shaped lifting part arranged above and below a driving piece.
The purpose of the utility model is realized as follows: novel double-cam thread trimming, thread loosening and presser foot lifting mechanism, comprises
The device comprises a machine body, wherein a stepping motor is transversely arranged in the machine body, a controller is arranged on one side of the machine body, an output shaft of the stepping motor extends out of the machine body and is provided with a driving piece, and an arc-shaped lifting part I and an arc-shaped lifting part II are respectively formed at two ends of the driving piece;
the lower end of the presser foot action plate is provided with a first pushing part for pushing the first arc-shaped lifting part, the first pushing part is positioned on one side of the first arc-shaped lifting part, and the upper end of the presser foot action plate is rotatably connected with the machine body and is connected with a presser foot lifting assembly;
the lower end of the trimming action plate is connected with a cutter group connecting assembly, the cutter group connecting assembly is connected with a trimming assembly, and the trimming action plate is provided with a second pushing part for pushing the second arc-shaped lifting part;
one end of the thread loosening action plate is connected with the thread shearing action plate, the other end of the thread loosening action plate is connected with a thread loosening crank, and the thread loosening crank is connected with a thread loosening assembly;
the controller controls the stepping motor to rotate forwards or backwards, and the arc-shaped lifting parts at the two ends of the driving piece respectively drive the presser foot action plate and the thread trimming action plate so as to carry out the actions of presser foot lifting, thread trimming and thread loosening.
Preferably, the knife tackle connecting assembly comprises a knife tackle connecting rod connected with the thread trimming action plate, one end of the knife tackle connecting rod is connected with a knife tackle connecting seat, the other end of the knife tackle connecting seat is connected with a knife tackle action piece, and the knife tackle action piece is connected with the thread trimming assembly.
Preferably, a strip-shaped through hole is formed in the knife group action piece, a limiting part is installed in the strip-shaped through hole, the lower end of the limiting part is connected with the machine body, and the knife group action piece can be arranged on the machine body in a linear motion mode.
Preferably, a rotating shaft is installed on the machine body, the upper end of the thread cutting action plate is rotatably installed on the periphery of the rotating shaft, and a cushion block is arranged between the thread cutting action plate and the machine body.
Preferably, a rotatable bearing I is installed on the first pushing part, and a rotatable bearing II is installed on the second pushing part.
A flat seaming machine comprises a machine body, wherein a thread cutting assembly, a thread loosening assembly and a presser foot lifting assembly are respectively arranged on the machine body.
Compared with the prior art, the utility model has the outstanding and beneficial technical effects that:
according to the utility model, through the design of the driving piece, in the actual working process, the controller controls the stepping motor to rotate forwards or backwards, the arc-shaped lifting part I at the inner end of the driving piece drives the presser foot action plate to carry out the presser foot lifting action, or the arc-shaped lifting part II at the outer end of the driving piece drives the thread cutting action plate to carry out the thread cutting and thread loosening actions, and the knife group connecting assembly has the advantages of simple structure, convenience in disassembly and maintenance and lower cost.
Drawings
FIG. 1 is a schematic view of a flat seaming machine.
Fig. 2 is a schematic structural diagram of a driving member and a thread trimming, thread loosening and presser foot lifting mechanism.
Reference numerals: 1-body; 2-a step motor; 3-an output shaft; 4-a drive member; 4 a-an arc-shaped lifting part I; 4 b-an arc-shaped lifting part II; 5-presser foot action plate; 5 a-a first pushing part; 6-trimming action plate; 6 a-pushing part II; 7-a knife tackle connecting component; 7 a-a knife group connecting rod; 7 b-a cutter set connecting seat; 7 c-a knife group action piece; 8-a thread trimming assembly; 9-a thread releasing action plate; 10-loose wire crank; 12-a rotating shaft; 13-cushion block; 19-bearing one; and 20-bearing II.
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Novel double-cam thread trimming, thread loosening and presser foot lifting mechanism, comprises
The machine body 1 is internally and transversely provided with the stepping motor 2, the stepping motor 2 is positioned in the machine body 1, the occupied space of the stepping motor 2 can be reduced, and the space outside the machine body 1 is released, so that the whole structure is simpler, one side of the machine body 1 is provided with the controller, the output shaft 3 of the stepping motor 2 extends out of the machine body 1 and is provided with the driving piece 4, and the two ends of the driving piece 4 are respectively formed with an arc-shaped lifting part I4 a and an arc-shaped lifting part II 4 b;
the lower end of the presser foot action plate 5 is provided with a first pushing part 5a for pushing the first arc-shaped lifting part 4a, the first pushing part 5a is positioned on one side of the first arc-shaped lifting part 4a, and the upper end of the presser foot action plate 5 is rotatably connected with the machine body 1 and is connected with a presser foot lifting assembly;
the trimming action plate 6 is arranged on one side of the arc-shaped lifting part II 4b, the lower end of the trimming action plate 6 is connected with a cutter group connecting assembly 7, the cutter group connecting assembly 7 is connected with a trimming assembly 8, and a pushing part II 6a for pushing the arc-shaped lifting part II 4b is arranged on the trimming action plate 6;
the thread releasing action plate 9 is characterized in that one end of the thread releasing action plate 9 is connected with the thread cutting action plate 6, the other end of the thread releasing action plate 9 is connected with a thread releasing crank 10, and the thread releasing crank 10 is connected with a thread releasing assembly;
in the actual working process, the controller controls the stepping motor 2 to rotate forwards or backwards, the arc-shaped lifting part I4 a at the inner end of the driving piece 4 drives the presser foot action plate 5 to carry out the presser foot lifting action, or the arc-shaped lifting part II 4b at the outer end of the driving piece 4 drives the thread trimming action plate 6 to carry out the thread trimming and thread loosening actions, and the knife group connecting assembly 7 is simple in structure, convenient to assemble, disassemble and maintain and low in cost.
The knife tackle connecting assembly 7 comprises a knife tackle connecting rod 7a connected with the trimming action plate 6, one end of the knife tackle connecting rod 7a is connected with a knife tackle connecting seat 7b, the other end of the knife tackle connecting seat 7b is connected with a knife tackle action piece 7c, the knife tackle action piece 7c is connected with a trimming component 8, when the pushing portion II 6a on the trimming action plate 6 is pushed by the arc-shaped lifting portion II 4b, the trimming action plate 6 can drive the knife tackle connecting rod 7a, the knife tackle connecting seat 7b and the knife tackle action piece 7c to finally drive the trimming component 8 to execute trimming action.
The knife tackle action piece 7c is provided with a strip-shaped through hole, a limiting part is installed in the strip-shaped through hole, the knife tackle action piece is more stable when moving, the lower end of the limiting part is connected with the machine body 1, and the knife tackle action piece 7c can be arranged on the machine body 1 in a linear motion mode.
Install rotation axis 12 on the organism 1, but the upper end rotary mounting of trimming action board 6 improves the stability when rotating at the periphery of rotation axis 12, be provided with cushion 13 between trimming action board 6 and the organism 1, reduce frictional force to rotate.
The first rotatable bearing 19 is installed on the first pushing portion 5a, the second rotatable bearing 20 is installed on the second pushing portion 6a, and through the design of the bearings, friction force during contact can be reduced, abrasion is reduced, and therefore the service life is prolonged.
A flat seaming machine comprises a machine body 1, wherein a novel double-cam thread trimming, thread loosening and presser foot lifting mechanism is adopted, and a thread trimming assembly 8, a thread loosening assembly and a presser foot lifting assembly are respectively arranged on the machine body 1.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (6)
1. A novel double-cam thread trimming, thread loosening and presser foot lifting mechanism is characterized by comprising
The device comprises a machine body (1), wherein a stepping motor (2) is transversely arranged in the machine body (1), a controller is arranged on one side of the machine body (1), an output shaft (3) of the stepping motor (2) extends out of the machine body (1) and is provided with a driving piece (4), and an arc-shaped lifting part I (4a) and an arc-shaped lifting part II (4b) are respectively formed at two ends of the driving piece (4);
the lower end of the presser foot action plate (5) is provided with a first pushing part (5a) for pushing the first arc-shaped lifting part (4a), the first pushing part (5a) is positioned on one side of the first arc-shaped lifting part (4a), and the upper end of the presser foot action plate (5) is rotatably connected with the machine body (1) and is connected with a presser foot lifting assembly;
the trimming action plate (6) is arranged on one side of the arc-shaped lifting part II (4b), the lower end of the trimming action plate (6) is connected with a cutter group connecting assembly (7), the cutter group connecting assembly (7) is connected with a trimming assembly (8), and a pushing part II (6a) for pushing the arc-shaped lifting part II (4b) is arranged on the trimming action plate (6);
the thread releasing device comprises a thread releasing action plate (9), one end of the thread releasing action plate (9) is connected with a thread cutting action plate (6), the other end of the thread releasing action plate (9) is connected with a thread releasing crank (10), and the thread releasing crank (10) is connected with a thread releasing assembly;
the controller controls the stepping motor (2) to rotate forwards or reversely, and the arc-shaped lifting parts at the two ends of the driving piece (4) respectively drive the presser foot action plate (5) and the thread cutting action plate (6) so as to carry out the actions of lifting the presser foot, cutting the thread and loosening the thread.
2. The novel double-cam thread trimming, thread slacking and presser foot lifting mechanism of claim 1, wherein: knife tackle coupling assembling (7) include knife tackle connecting rod (7a) that are connected with trimming action board (6), and the one end of knife tackle connecting rod (7a) is connected with knife tackle connecting seat (7b), and the other end of knife tackle connecting seat (7b) is connected with knife tackle action piece (7c), and knife tackle action piece (7c) are connected with trimming subassembly (8).
3. The novel double-cam thread trimming, thread slacking and presser foot lifting mechanism of claim 2, wherein: the knife tackle is characterized in that a strip-shaped through hole is formed in the knife tackle action piece (7c), a limiting part is installed in the strip-shaped through hole, the lower end of the limiting part is connected with the machine body (1), and the knife tackle action piece (7c) can be arranged on the machine body (1) in a linear motion mode.
4. The novel double-cam thread trimming, thread slacking and presser foot lifting mechanism of claim 1, wherein: the machine body (1) is provided with a rotating shaft (12), the upper end of the thread shearing action plate (6) is rotatably arranged on the periphery of the rotating shaft (12), and a cushion block (13) is arranged between the thread shearing action plate (6) and the machine body (1).
5. The novel double-cam thread trimming, thread slacking and presser foot lifting mechanism of claim 1, wherein: the first pushing part (5a) is provided with a rotatable bearing I (19), and the second pushing part (6a) is provided with a rotatable bearing II (20).
6. A flat seaming machine, characterized in that, has the novel double-cam thread trimming, thread slacking and presser foot lifting mechanism of any one of claims 1 to 5, which comprises a machine body (1), wherein a thread trimming component (8), a thread slacking component and a presser foot lifting component are respectively arranged on the machine body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122480503.1U CN215829025U (en) | 2021-10-14 | 2021-10-14 | Novel double-cam thread trimming, thread loosening and presser foot lifting mechanism and flat seaming machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122480503.1U CN215829025U (en) | 2021-10-14 | 2021-10-14 | Novel double-cam thread trimming, thread loosening and presser foot lifting mechanism and flat seaming machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215829025U true CN215829025U (en) | 2022-02-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122480503.1U Active CN215829025U (en) | 2021-10-14 | 2021-10-14 | Novel double-cam thread trimming, thread loosening and presser foot lifting mechanism and flat seaming machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215829025U (en) |
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2021
- 2021-10-14 CN CN202122480503.1U patent/CN215829025U/en active Active
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