CN221523010U - Novel curved needle mechanism for sewing machine - Google Patents
Novel curved needle mechanism for sewing machine Download PDFInfo
- Publication number
- CN221523010U CN221523010U CN202420038484.8U CN202420038484U CN221523010U CN 221523010 U CN221523010 U CN 221523010U CN 202420038484 U CN202420038484 U CN 202420038484U CN 221523010 U CN221523010 U CN 221523010U
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- Prior art keywords
- connecting rod
- curved needle
- preformed hole
- needle
- frame
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- 238000009958 sewing Methods 0.000 title claims abstract description 27
- 238000005452 bending Methods 0.000 description 26
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 239000004753 textile Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
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- Sewing Machines And Sewing (AREA)
Abstract
The utility model discloses a novel looper mechanism for a sewing machine, which belongs to the technical field of sewing machines and comprises a looper frame connecting rod, wherein a first connecting preformed hole is formed in the center of the looper frame connecting rod, and a first fixing preformed hole is formed in the position, located at the top end of the first connecting preformed hole, of the looper frame connecting rod. According to the utility model, the bent needle frame connecting rod is arranged, the bent needle crank drives the bent needle connecting rod assembly to swing together when the bent needle crank swings left and right, and the bent needle frame connecting rod is driven to swing together when the bent needle connecting rod assembly swings, and simultaneously the bent needle frame connecting rod drives the two bent needle frames and the connecting rod to swing when the bent needle frame connecting rod swings, so that the connecting rod swings left and right synchronously on the bent needle frame shaft, and simultaneously the bent needle lower frame swings back and forth, thereby realizing the wide needle position double-needle four-wire chain type sewing stitch with the needle spacing of 30-45 mm, enabling the sewing machine to be more convenient when large objects are sewn, and meeting the sewing requirement of the wide needle position.
Description
Technical Field
The utility model relates to the technical field of sewing machines, in particular to a novel looper mechanism for a sewing machine.
Background
The sewing machine is a high-efficiency manufacturing tool, can rapidly and accurately finish various sewing tasks, enables textile industry and other manufacturing industries to produce commodities more rapidly and efficiently, improves the whole economical efficiency, reduces the production cost, can rapidly and accurately finish the sewing tasks by using the sewing machine, reduces the labor and time cost, and enables stitch formation on cloth to be possible by using a looper mechanism which is one of crucial components in the sewing machine, so that various tailor and textile processes are realized.
Disclosure of utility model
The technical problem to be solved by the utility model is that in the prior art, a looper mechanism usually uses one looper frame to drive two loopers to sew, but because the distance between the two loopers is narrower, only narrower needle positions can be sewn, so that the looper mechanism is inconvenient when large objects are sewn, and cannot meet some sewing requirements.
In order to solve the technical problems, the utility model adopts a technical scheme that: the utility model provides a novel looper mechanism for sewing machine, including the looper frame connecting rod, the central point of looper frame connecting rod puts and is provided with first connection preformed hole, the position that the looper frame connecting rod is located first connection preformed hole top is provided with first fixed preformed hole, be provided with the screw thread in the first fixed preformed hole, arbitrary side symmetry fixedly connected with second connecting pin of looper frame connecting rod, one side that the looper frame connecting rod is close to the second connecting pin is provided with a plurality of looper frame, the equal fixedly connected with looper in top of looper frame, the position that the looper frame is close to the second connecting pin all is equipped with the second connection preformed hole, the second connecting pin sets up respectively in the second connection preformed hole that is close to, the position that the looper frame is located second connection preformed hole top all is provided with the third fixed preformed hole, the position that the looper frame is located third fixed preformed hole top is provided with a plurality of fourth fixed preformed hole, third fixed preformed hole and fourth fixed preformed hole internal thread all are provided with the bolt all in the fourth fixed preformed hole.
Through the technical scheme, as the second connecting pin is arranged in the second connecting preformed hole, the second connecting pin can be fixed in the second connecting preformed hole by the pin shaft bolt of the third fixing preformed hole, so that the bent needle frame connecting rod is fixedly connected with the bent needle frame, and when the bent needle frame connecting rod swings, the two bent needle frames can be driven to swing synchronously.
The utility model is further characterized in that the bent needle frame is fixedly connected with a connecting rod at the bottom end of the second connecting preformed hole, a third through hole is formed in the center of the connecting rod, and a baffle ring is fixedly connected to one side, close to the connecting rod of the bent needle frame, of the connecting rod.
The needle bending machine is further characterized in that a needle bending frame shaft retainer ring is arranged on one side, close to the needle bending frame connecting rod, of the connecting rod, a first through hole is formed in the center of the needle bending frame shaft retainer ring, a plurality of second fixing reserved holes are formed in the needle bending frame shaft retainer ring, threads are arranged in the second fixing reserved holes, and retainer ring bolts are connected in the second fixing reserved holes in a threaded mode.
Through the technical scheme, the needle bending frame shaft retainer ring can prevent the needle bending frame shaft from separating from the connecting rod, so that the operation of the needle bending mechanism is more stable.
The utility model is further arranged that one side of the connecting rod, which is far away from the connecting rod of the curved needle frame, is provided with a curved needle lower frame, the curved needle lower frame is provided with a second through hole, one side of the curved needle lower frame, which is close to the curved needle frame, is symmetrically and fixedly connected with a curved needle frame shaft, and the curved needle frame shaft passes through the third through hole which is close to the curved needle lower frame.
Through the technical scheme, the bent needle frame shaft penetrates through the third through hole, so that the bent needle frame shaft and the connecting rod are in rotary and sliding connection, and the connecting frame can swing on the connecting frame shaft.
The needle bending frame connecting rod is characterized in that a needle bending connecting rod assembly is arranged on one side, far away from the needle bending frame, of the needle bending connecting rod assembly, a first connecting pin is fixedly connected to the position, close to the first connecting preformed hole, of the needle bending connecting rod assembly, the first connecting pin is arranged in the first connecting preformed hole, a pin shaft bolt is connected to the first fixing preformed hole in a threaded mode, and a needle bending crank is fixedly connected to one end, far away from the needle bending frame connecting rod, of the needle bending connecting rod assembly.
Through the technical scheme, the bent needle crank can drive the bent needle connecting rod assembly to swing together when swinging, the first connecting pin is arranged in the first connecting preformed hole, and the pin shaft bolt in the first fixing preformed hole can fix the first connecting pin in the first connecting preformed hole, so that the bent needle connecting rod assembly can drive the bent needle frame connecting rod to swing together when swinging.
The beneficial effects of the utility model are as follows:
According to the utility model, the bent needle frame connecting rod is arranged, the bent needle crank drives the bent needle connecting rod assembly to swing together when the bent needle crank swings left and right, and the bent needle frame connecting rod is driven to swing together when the bent needle connecting rod assembly swings, and simultaneously the bent needle frame connecting rod drives the two bent needle frames and the connecting rod to swing when the bent needle frame connecting rod swings, so that the connecting rod swings left and right synchronously on the bent needle frame shaft, and simultaneously the bent needle lower frame swings back and forth, thereby realizing the wide needle position double-needle four-wire chain type sewing stitch with the needle spacing of 30-45 mm, enabling the sewing machine to be more convenient when large objects are sewn, and meeting the sewing requirement of the wide needle position.
Drawings
FIG. 1 is a schematic view of the present utility model in exploded form;
FIG. 2 is a schematic view of a partial structure of the present utility model;
fig. 3 is an enlarged view of the portion a of fig. 1 in accordance with the present utility model.
In the figure: 1. a curved needle crank; 2. a curved needle link assembly; 201. a first connecting pin; 3. a curved needle frame connecting rod; 301. a first connection preformed hole; 302. a first fixed preformed hole; 303. a second connecting pin; 4. a pin bolt; 5. a curved needle frame shaft retainer ring; 501. a second fixed preformed hole; 502. a first through hole; 6. the curved needle is put down; 601. a second through hole; 602. a curved needle holder shaft; 7. a needle bending frame; 701. a second connection preformed hole; 702. a third fixed preformed hole; 703. a fourth fixed preformed hole; 8. a connecting rod; 801. a baffle ring; 802. a third through hole; 9. a curved needle; 10. and a check ring bolt.
Detailed Description
The preferred embodiments of the present utility model will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, thereby making clear and defining the scope of the present utility model.
Referring to fig. 1, 2 and 3, a novel looper mechanism for a sewing machine comprises a looper frame connecting rod 3, wherein a first connecting preformed hole 301 is formed in the center position of the looper frame connecting rod 3, a first fixing preformed hole 302 is formed in the position of the looper frame connecting rod 3 at the top end of the first connecting preformed hole 301, threads are formed in the first fixing preformed hole 302, a second connecting pin 303 is symmetrically and fixedly connected to any side of the looper frame connecting rod 3, a plurality of looper frames 7 are arranged on one side, close to the second connecting pin 303, of the looper frame connecting rod 3, looper needles 9 are fixedly connected to the top end of the looper frame 7, second connecting preformed holes 701 are formed in the positions, close to the second connecting pin 303, of the looper frame 7, third fixing preformed holes 702 are formed in the positions, which the looper frames 7 are positioned at the top of the second connecting preformed holes 701, a plurality of fourth fixing preformed holes 703 are formed in the positions, which the positions of the looper frames 7 are positioned at the top of the third fixing preformed holes 702, threads are fixedly connected to the fourth preformed holes 703, and the fourth preformed holes 703 are respectively formed in the fourth fixing preformed holes 702, and the fourth preformed holes are fixedly connected to the fourth preformed holes 703, and the fourth preformed holes are respectively provided with threads, and screw threads are formed in the fixing bolts 703;
The needle bending frame connecting rod 3 is provided with a needle bending connecting rod assembly 2 at one side far away from the needle bending frame 7, a first connecting pin 201 is fixedly connected to the position, close to the first connecting preformed hole 301, of the needle bending connecting rod assembly 2, the first connecting pin 201 is arranged in the first connecting preformed hole 301, a pin shaft bolt 4 is connected to the first fixing preformed hole 302 in a threaded mode, a needle bending crank 1 is fixedly connected to one end, far away from the needle bending frame connecting rod 3, of the needle bending frame 7, a connecting rod 8 is fixedly connected to the position, located at the bottom end of the second connecting preformed hole 701, of the needle bending frame 7, a third through hole 802 is formed in the center position of the connecting rod 8, and a blocking ring 801 is fixedly connected to one side, close to the needle bending frame connecting rod 3, of the connecting rod 8;
The curved needle lower frame 6 is arranged on one side, far away from the curved needle frame connecting rod 3, of the connecting rod 8, the second through holes 601 are formed in the curved needle lower frame 6, the curved needle frame shaft 602 is symmetrically and fixedly connected to one side, close to the curved needle frame 7, of the curved needle lower frame 6, the curved needle frame shaft 602 penetrates through the third through holes 802, close to the curved needle frame connecting rod 3, the curved needle frame shaft check rings 5 are arranged on one side, close to the curved needle frame connecting rod 3, of the connecting rod 8, the first through holes 502 are formed in the central position of the curved needle frame shaft check rings 5, a plurality of second fixed reserved holes 501 are formed in the curved needle frame shaft check rings 5, threads are formed in the second fixed reserved holes 501, and check ring bolts 10 are connected to the second fixed reserved holes 501 in a threaded mode.
When the double-needle four-line chain type sewing machine is used, the bent needle crank 1 swings left and right and drives the bent needle connecting rod assembly 2 to swing together, the first connecting pin 201 is arranged in the first connecting preformed hole 301, the first connecting pin 201 is fixed by the pin shaft bolt 4, the bent needle frame connecting rod 3 is driven to swing together when the bent needle connecting rod assembly 2 swings, the second connecting pin 303 is arranged in the second connecting preformed hole 701, the second connecting pin 303 is fixed by the pin shaft bolt 4, the bent needle frame connecting rod 3 drives the two bent needle frames 7 and the connecting rod 8 to swing when swinging, the connecting rod 8 swings left and right synchronously on the bent needle frame shaft 602, and the bent needle lower frame 6 swings back and forth, so that a wide needle position double-needle four-line chain type sewing stitch with a needle spacing of 30-45 mm is realized.
The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.
Claims (5)
1. The utility model provides a novel looper mechanism for sewing machine, includes looper frame connecting rod (3), its characterized in that: the center position of curved needle frame connecting rod (3) is provided with first connection preformed hole (301), the position that curved needle frame connecting rod (3) is located first connection preformed hole (301) top is provided with first fixed preformed hole (302), be provided with the screw thread in first fixed preformed hole (302), arbitrary one side symmetry fixedly connected with second connecting pin (303) of curved needle frame connecting rod (3), one side that curved needle frame connecting rod (3) is close to second connecting pin (303) is provided with a plurality of curved needle frame (7), the equal fixedly connected with curved needle (9) in top of curved needle frame (7), the position that curved needle frame (7) is close to second connecting pin (303) all is equipped with second connection preformed hole (701), second connecting pin (303) set up respectively in second connection preformed hole (701) that is close to, the position that curved needle frame (7) is located second connection preformed hole (701) top all is provided with third fixed preformed hole (702), the equal fixedly connected with screw thread in fourth fixed hole (703) and fourth fixed pin (703) top position preformed hole (703).
2. The novel looper mechanism for a sewing machine according to claim 1, wherein: the bent needle frame (7) is fixedly connected with a connecting rod (8) at the bottom end of the second connecting preformed hole (701), a third through hole (802) is formed in the center of the connecting rod (8), and a baffle ring (801) is fixedly connected to one side, close to the bent needle frame connecting rod (3), of the connecting rod (8).
3. The novel looper mechanism for a sewing machine according to claim 2, wherein: one side that connecting rod (8) are close to curved needle frame connecting rod (3) all is provided with curved needle frame axle retaining ring (5), the central point of curved needle frame axle retaining ring (5) puts and is provided with first perforation (502), be provided with fixed preformed hole (501) of a plurality of second on curved needle frame axle retaining ring (5), be provided with the screw thread in fixed preformed hole (501) of second, equal threaded connection has retaining ring bolt (10) in fixed preformed hole (501) of second.
4. The novel looper mechanism for a sewing machine according to claim 2, wherein: one side of connecting rod (8) keeping away from curved needle frame connecting rod (3) is provided with curved needle lower carriage (6), be provided with second through-hole (601) on curved needle lower carriage (6), curved needle lower carriage (6) are close to curved needle frame (7) one side symmetry fixedly connected with curved needle frame axle (602), curved needle frame axle (602) pass third through-hole (802) that are close to.
5. The novel looper mechanism for a sewing machine according to claim 1, wherein: one side that curved needle frame connecting rod (3) kept away from curved needle frame (7) is provided with curved needle connecting rod assembly (2), curved needle connecting rod assembly (2) are close to the position fixedly connected with first connecting pin (201) of first connection preformed hole (301), first connecting pin (201) set up in first connection preformed hole (301), threaded connection has round pin axle bolt (4) in first fixed preformed hole (302), curved needle connecting rod assembly (2) are kept away from one end fixedly connected with curved needle crank (1) of curved needle frame connecting rod (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420038484.8U CN221523010U (en) | 2024-01-08 | 2024-01-08 | Novel curved needle mechanism for sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420038484.8U CN221523010U (en) | 2024-01-08 | 2024-01-08 | Novel curved needle mechanism for sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221523010U true CN221523010U (en) | 2024-08-13 |
Family
ID=92205038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420038484.8U Active CN221523010U (en) | 2024-01-08 | 2024-01-08 | Novel curved needle mechanism for sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221523010U (en) |
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2024
- 2024-01-08 CN CN202420038484.8U patent/CN221523010U/en active Active
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