CN218951655U - Double-stitch flat seaming machine - Google Patents
Double-stitch flat seaming machine Download PDFInfo
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- CN218951655U CN218951655U CN202320048358.6U CN202320048358U CN218951655U CN 218951655 U CN218951655 U CN 218951655U CN 202320048358 U CN202320048358 U CN 202320048358U CN 218951655 U CN218951655 U CN 218951655U
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Abstract
The utility model belongs to the technical field of sewing machines, in particular to a double-stitch flat seaming machine which comprises a machine head and a machine base with needle plates, wherein the machine head is provided with a needle rod, the tail end of the needle rod is provided with a needle, the machine base is provided with a lower bent needle shaft, the lower bent needle shaft is sleeved with a lower bent needle, the needle rod is sleeved with a needle ancient support, the needle ancient support is provided with auxiliary needles which are spaced left and right and are parallel to the needle, the needle plate is provided with needle plate through grooves which are in one-to-one correspondence with the needle and the auxiliary needles, and the lower bent needle shaft is sleeved with auxiliary lower bent needles matched with the auxiliary needles. According to the utility model, the auxiliary needle and the auxiliary lower curved needle matched with the auxiliary needle are additionally arranged on the existing mechanism, so that two equally-spaced stitches can be sewn between the needle and the lower curved needle and between the auxiliary needle and the auxiliary lower curved needle at the same time, so that the special sewing process requirements are met.
Description
Technical field:
the utility model belongs to the technical field of sewing machines, and particularly relates to a double-stitch flat seaming machine.
The background technology is as follows:
in order to meet the requirements of special sewing processes, two equidistant stitches are often required to be sewn on the cloth, but the existing sewing machine can only stitch one stitch, if two equidistant stitches are required to be sewn, one stitch parallel to the previous stitch is required to be sewn again, the technical requirements on sewing personnel are high, and the sewing quality cannot be effectively ensured.
The utility model comprises the following steps:
the utility model aims to provide a double-stitch flat seaming machine, which is characterized in that a pair of machine needles and a pair of lower curved needles matched with the pair of machine needles are additionally arranged on the existing mechanism, so that two equally-spaced stitches can be sewn at the same time, and the special sewing process requirements are met.
The utility model is realized in the following way:
the utility model provides a double stitch flat seaming machine, includes the aircraft nose and has the frame of faller, is equipped with the needle bar that reciprocates by needle bar mechanism drive on the aircraft nose, and the end of needle bar is equipped with the needle, is equipped with the lower curved needle axle that can axial displacement and circumferential direction on the frame, and the cover is equipped with down curved needle down on the curved needle axle, the cover is equipped with the ancient support of needle on the needle bar, is provided with the auxiliary needle that controls interval and parallel with the needle on the ancient support of needle, set up the faller logical groove with needle and auxiliary needle one-to-one on the faller, down curved needle epaxial cover be equipped with auxiliary needle matched with vice curved needle down.
The double-thread flat seaming machine is characterized in that an upper curved needle rotating shaft driven to rotate by an upper curved needle mechanism is arranged on the machine head, an upper curved needle swing frame is sleeved on the upper curved needle rotating shaft, an upper curved needle matched with the machine needle is arranged at the outer end of the upper curved needle swing frame, an auxiliary upper curved needle swing frame is connected to the machine head in a rotating mode, a driving crank is sleeved on the upper curved needle rotating shaft, the crank end of the driving crank is in hinged transmission with the inner end of the auxiliary upper curved needle swing frame through a driving connecting rod, and an auxiliary upper curved needle matched with the auxiliary machine needle is arranged at the outer end of the auxiliary upper curved needle swing frame.
In the double-stitch flat seaming machine, the machine head is connected with the swing frame support through the fastener, and the auxiliary upper bent needle swing frame is connected to the swing frame support through the shaft pin in a rotating manner.
In the double-stitch flat seaming machine, a parallelogram hinge mechanism is formed among the upper curved needle rotating shaft, the driving crank, the driving connecting rod and the auxiliary upper curved needle swing frame.
In the double-thread flat seaming machine, the machine head is provided with the presser foot shaft driven by the presser foot mechanism to move up and down, the tail end of the presser foot shaft is provided with the presser foot positioned under the machine needle and the auxiliary machine needle, and the presser foot is provided with the presser foot through groove for the machine needle to penetrate through and the auxiliary presser foot through groove for the auxiliary machine needle to penetrate through.
The machine seat is provided with the main feed dog and the differential feed dog which are driven by the feed mechanism to move forwards and backwards, the main feed dog and the differential feed dog are respectively provided with the feed dog matched with the machine needle and the auxiliary feed dog matched with the auxiliary machine needle, and the needle plate is provided with the feed through groove for the feed dog to penetrate and the auxiliary feed through groove for the auxiliary feed dog to penetrate.
In the above-mentioned double-stitch flat seaming machine, the end of needle bar is equipped with the needle ancient, the needle is provided with three side by side and all fixes on the needle ancient, be equipped with vice needle ancient on the ancient support of needle, vice needle is provided with three side by side and all fixes on vice needle ancient.
In the double-stitch flat seaming machine, the machine needle and the auxiliary machine needle are arranged in a front-back staggered mode.
Compared with the prior art, the utility model has the outstanding advantages that:
according to the utility model, the auxiliary needle and the auxiliary lower curved needle matched with the auxiliary needle are additionally arranged on the existing mechanism, so that two equally-spaced stitches can be sewn between the needle and the lower curved needle and between the auxiliary needle and the auxiliary lower curved needle at the same time, so that the special sewing process requirements are met.
Description of the drawings:
FIG. 1 is an overall perspective view of the present utility model;
FIG. 2 is a first block diagram of the interior of the handpiece of the present utility model;
FIG. 3 is a second block diagram of the interior of the handpiece of the present utility model;
FIG. 4 is a third internal block diagram of the handpiece of the present utility model;
FIG. 5 is a perspective view of a housing of the present utility model;
fig. 6 is a view showing an internal structure of the housing of the present utility model.
In the figure: 1. a machine head; 2. a base; 3. a needle plate; 4. a needle bar; 5. a needle; 6. a lower curved needle shaft; 7. a lower curved needle; 8. a needle ancient bracket; 9. auxiliary machine needles; 10. the needle plate is communicated with the groove; 11. a secondary lower curved needle; 12. an upper crankshaft; 13. a needle bar crank; 14. a linkage connecting rod; 15. a curved needle rotating shaft is arranged; 16. a bent needle swing frame is arranged on the upper part; 17. a curved needle is arranged; 18. the auxiliary upper bent needle swing frame; 19. a drive crank; 20. a drive link; 21. a secondary upper curved needle; 22. swinging the connecting rod shaft; 23. a swing crank; 24. a curved needle connecting rod is arranged; 25. a swing frame support; 26. a presser foot shaft; 27. a presser foot; 28. a main feed dog; 29. differential feed dog; 30. feeding teeth; 31. auxiliary cloth feeding teeth; 32. ancient acupuncture needles; 33. the auxiliary needle is ancient.
The specific embodiment is as follows:
the utility model is further described below with reference to the specific examples, see fig. 1-6:
the utility model provides a double stitch flat seaming machine, includes aircraft nose 1 and has the frame 2 of faller 3, is equipped with on the aircraft nose 1 by needle bar mechanism drive reciprocates's needle bar 4, the end of needle bar 4 is equipped with needle 5, is equipped with down curved needle axle 6 that can axial displacement and circumferential rotation on the frame 2, and the cover is equipped with down curved needle 7 down on the curved needle axle 6 down, the cover is equipped with needle ancient support 8 on the needle bar 4, is provided with on the needle ancient support 8 with the interval about needle 5 and parallel auxiliary needle 9, set up on the faller 3 with needle 5 and auxiliary needle 9 one-to-one's faller logical groove 10, the cover is equipped with auxiliary needle 9 matched with auxiliary lower curved needle 11 down on the curved needle axle 6 down. The needle bar mechanism can directly adopt the existing structure, and comprises an upper crankshaft 12 which rotates on the machine head 1, a needle bar crank 13 is sleeved on the upper crankshaft 12, the crank end of the needle bar crank 13 is hinged with the needle bar 4 through a linkage connecting rod 14 for transmission, and the upper crankshaft 12 rotates to drive the needle bar 4 to slide up and down through the needle bar crank 13 and the linkage connecting rod 14. Meanwhile, the driving mode of the axial movement and the circumferential rotation of the lower looper shaft 6 is also adopted in the prior art, and can be seen from the looper driving mechanism of the sewing machine disclosed in China patent application No. CN 1405392A.
According to the utility model, the auxiliary needle 9 and the auxiliary lower curved needle 11 matched with the auxiliary needle 9 are additionally arranged on the existing mechanism, so that two equidistant stitches can be sewn between the needle 5 and the lower curved needle 7 and between the auxiliary needle 9 and the auxiliary lower curved needle 11 at the same time, so that the special sewing process requirements are met.
Furthermore, in order to make the auxiliary needle 9 match with the upper looper 17 like the needle 5 to make up a decorative stitch with good appearance, in this embodiment, an auxiliary upper looper 21 matching with the auxiliary needle 9 is added to the existing upper looper transmission structure, and the specific structure is as follows: the machine head 1 is provided with an upper curved needle rotating shaft 15 driven to rotate by an upper curved needle mechanism, an upper curved needle swing frame 16 is sleeved on the upper curved needle rotating shaft 15, an upper curved needle 17 matched with the machine needle 5 is arranged at the outer end of the upper curved needle swing frame 16, an auxiliary upper curved needle swing frame 18 is connected to the machine head 1 in a rotating mode, a driving crank 19 is sleeved on the upper curved needle rotating shaft 15, the crank end of the driving crank 19 is hinged to the inner end of the auxiliary upper curved needle swing frame 18 through a driving connecting rod 20, and an auxiliary upper curved needle 21 matched with the auxiliary machine needle 9 is arranged at the outer end of the auxiliary upper curved needle swing frame 18. The upper looper mechanism is of a conventional structure, and comprises a swing link shaft 22 rotatably connected to the machine head 1, the upper crankshaft 12 is in transmission connection with the swing link shaft 22 through a crankshaft link assembly, a swing crank 23 is sleeved on the swing link shaft 22, and an upper looper link 24 hinged with the swing crank 23 is sleeved on the upper looper rotary shaft 15.
Meanwhile, in order to facilitate the rotatable connection of the sub-upper needle swing frame 18 to the head 1, the head 1 is connected to the swing frame support 25 by a fastener, and the sub-upper needle swing frame 18 is rotatably connected to the swing frame support 25 by a shaft pin.
In order to enable the sub upper loopers 21 to swing synchronously with the upper loopers 17 and to have the same swing amplitude, the upper looper shaft 15, the drive crank 19, the drive link 20 and the sub upper looper swing frame 18 form a parallelogram hinge mechanism therebetween to make the same decorative stitch.
Further, in order to fit the newly added sub-needle 9 and sub-lower looper 11, the head 1 is provided with a presser foot shaft 26 driven by a presser foot mechanism to move up and down, the end of the presser foot shaft 26 is provided with a presser foot 27 positioned right below the needle 5 and the sub-needle 9, and the presser foot 27 is provided with a presser foot through slot through which the needle 5 can pass and a sub-presser foot through slot through which the sub-needle 9 can pass. That is, compared with the prior art, the present embodiment enlarges the presser foot 27 to simultaneously satisfy the pressing of the sewing cloth required by the needle 5 and the sub needle 9.
Similarly, in order to be able to cooperate with the newly added auxiliary needle 9 and the auxiliary lower looper 11, the machine base 2 is provided with a main feed dog 28 and a differential feed dog 29 which are driven by a feed mechanism to move forward and backward, the main feed dog 28 and the differential feed dog 29 are respectively provided with a feed dog 30 which is matched with the needle 5 and an auxiliary feed dog 31 which is matched with the auxiliary needle 9, and the needle plate 3 is provided with a feed through groove for the feed dog 30 to penetrate and an auxiliary feed through groove for the auxiliary feed dog 31 to penetrate. That is, in this embodiment, the main feed dog 28 and the differential feed dog 29 are enlarged to simultaneously satisfy the feed requirements of the sewing fabric required by the needle 5 and the sub needle 9, and the feed mechanism adopts the conventional structure.
In this embodiment, the end of the needle bar 4 is provided with a needle paleo-structure 32, the machine needle 5 is provided with three needles side by side and is fixed on the needle paleo-structure 32, the needle paleo-structure 33 is provided on the needle paleo-structure support 8, and the auxiliary machine needle 9 is provided with three needles side by side and is fixed on the auxiliary needle paleo-structure 33.
In order to avoid interference between the needle 5 and the sub needle 9, the needle 5 and the sub needle 9 are disposed in a staggered manner.
The above embodiment is only one of the preferred embodiments of the present utility model, and is not intended to limit the scope of the present utility model, therefore: all equivalent changes in shape, structure and principle of the utility model should be covered in the scope of protection of the utility model.
Claims (8)
1. The utility model provides a double stitch flat seaming machine, including aircraft nose (1) and have frame (2) of faller (3), be equipped with on aircraft nose (1) by needle bar mechanism drive reciprocates needle bar (4), the end of needle bar (4) is equipped with machine needle (5), is equipped with down curved needle axle (6) that can axial displacement and circumferential direction on frame (2), the cover is equipped with down curved needle (7) on curved needle axle (6) down, its characterized in that: the needle bar (4) is sleeved with a needle ancient support (8), auxiliary needles (9) which are parallel to the needles (5) at left and right intervals are arranged on the needle ancient support (8), needle plate through grooves (10) which are in one-to-one correspondence with the needles (5) and the auxiliary needles (9) are formed in the needle plate (3), and auxiliary lower bent needles (11) matched with the auxiliary needles (9) are sleeved on the lower bent needle shaft (6).
2. The double-seam flat seaming machine according to claim 1, wherein: the machine head (1) is provided with an upper curved needle rotating shaft (15) driven to rotate by an upper curved needle mechanism, an upper curved needle swing frame (16) is sleeved on the upper curved needle rotating shaft (15), an upper curved needle (17) matched with the machine needle (5) is arranged at the outer end of the upper curved needle swing frame (16), an auxiliary upper curved needle swing frame (18) is connected to the machine head (1) in a rotating mode, a driving crank (19) is sleeved on the upper curved needle rotating shaft (15), the crank end of the driving crank (19) is hinged to the inner end of the auxiliary upper curved needle swing frame (18) through a driving connecting rod (20), and an auxiliary upper curved needle (21) matched with the auxiliary machine needle (9) is arranged at the outer end of the auxiliary upper curved needle swing frame (18).
3. The double-seam flat seaming machine according to claim 2, wherein: the machine head (1) is connected with a swing frame support (25) through a fastener, and the auxiliary upper bent needle swing frame (18) is connected to the swing frame support (25) through a shaft pin in a rotating mode.
4. A double seam flat seaming machine according to claim 2 or 3, wherein: a parallelogram hinge mechanism is formed among the upper curved needle rotating shaft (15), the driving crank (19), the driving connecting rod (20) and the auxiliary upper curved needle swing frame (18).
5. The double-seam flat seaming machine according to claim 1, wherein: the machine head (1) is provided with a presser foot shaft (26) driven by a presser foot mechanism to move up and down, the tail end of the presser foot shaft (26) is provided with a presser foot (27) positioned under the machine needle (5) and the auxiliary machine needle (9), and the presser foot (27) is provided with a presser foot through groove through which the machine needle (5) can penetrate and an auxiliary presser foot through groove through which the auxiliary machine needle (9) can penetrate.
6. The double-seam flat seaming machine according to claim 1, wherein: the machine seat (2) is provided with a main feed dog (28) and a differential feed dog (29) which are driven by a feed mechanism to move forwards and backwards, the main feed dog (28) and the differential feed dog (29) are respectively provided with a feed dog (30) matched with the machine needle (5) and a secondary feed dog (31) matched with the secondary machine needle (9), and the needle plate (3) is provided with a feed through groove for the feed dog (30) to penetrate and a secondary feed through groove for the secondary feed dog (31) to penetrate.
7. The double-seam flat seaming machine according to claim 1, wherein: the end of needle bar (4) is equipped with needle ancient (32), needle (5) are provided with three side by side and all fix on needle ancient (32), be equipped with vice needle ancient (33) on needle ancient support (8), vice needle (9) are provided with three side by side and all fix on vice needle ancient (33).
8. The double-stitch flat seaming machine according to claim 1 or 7, wherein: the machine needle (5) and the auxiliary machine needle (9) are arranged in a staggered mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320048358.6U CN218951655U (en) | 2023-01-07 | 2023-01-07 | Double-stitch flat seaming machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320048358.6U CN218951655U (en) | 2023-01-07 | 2023-01-07 | Double-stitch flat seaming machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218951655U true CN218951655U (en) | 2023-05-02 |
Family
ID=86110502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320048358.6U Active CN218951655U (en) | 2023-01-07 | 2023-01-07 | Double-stitch flat seaming machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218951655U (en) |
-
2023
- 2023-01-07 CN CN202320048358.6U patent/CN218951655U/en active Active
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