CN213447581U - Rotary needle rod locking structure - Google Patents
Rotary needle rod locking structure Download PDFInfo
- Publication number
- CN213447581U CN213447581U CN202022320042.7U CN202022320042U CN213447581U CN 213447581 U CN213447581 U CN 213447581U CN 202022320042 U CN202022320042 U CN 202022320042U CN 213447581 U CN213447581 U CN 213447581U
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- China
- Prior art keywords
- needle bar
- tight circle
- joint assembly
- rotatory
- needle
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Abstract
The utility model belongs to the technical field of sewing machine, a rotatory needle bar locking structure is related to, the middle part cover of rotatory needle bar is equipped with needle bar joint Assembly, needle bar joint Assembly and rotatory needle bar clearance fit, the last cover of rotatory needle bar is established and is fixed with the last needle bar tight circle and the tight circle of lower needle bar of locking needle bar joint Assembly, the lower terminal surface of going up the tight circle of needle bar is connected with the up end contact of needle bar joint Assembly, the up end of the tight circle of lower needle bar is connected with the lower terminal surface contact of needle bar joint Assembly, it is the staple bolt structure to go up the tight circle of needle bar, the tight circle of lower needle bar. The utility model provides a rotatory needle bar locking structure has more reliable fastening mode, makes the tight circle of needle bar produce the risk greatly reduced of displacement.
Description
Technical Field
The utility model belongs to the technical field of sewing machine, a rotatory needle bar locking structure is related to.
Background
The existing needle bar rotating template machine locks the needle bar generally by two tightening rings, and 4 or 6 screws are used for tightening. The supporting mode has a small action surface, the vertical movement acceleration of the needle rod is high, the screw is not locked at great risk, the tight ring is displaced (particularly under the condition of high rotating speed), the vertical movement track of the needle rod is changed, the matching time of the take-up lever and the needle rod is inconsistent, and normal sewing cannot be carried out.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to prior art's not enough, provide a rotatory needle bar locking structure, have more reliable fastening mode, make the tight circle of needle bar produce the risk greatly reduced of displacement.
In order to solve the above technical problem, the purpose of the present invention can be achieved by the following technical solutions:
the utility model provides a rotatory needle bar locking structure, the middle part cover of rotatory needle bar is equipped with needle bar joint Assembly, needle bar joint Assembly and rotatory needle bar clearance fit, the last needle bar tight circle of last needle bar that is fixed with locking needle bar joint Assembly and the tight circle of lower needle bar are established to the cover on the rotatory needle bar, the lower terminal surface of going up the tight circle of needle bar is connected with the up end contact of needle bar joint Assembly, the up end of the tight circle of lower needle bar is connected with the lower terminal surface contact of needle bar joint Assembly, it is staple bolt structure to go up the tight circle of needle bar, the tight circle of lower needle bar.
In the above-mentioned locking structure for the rotary needle bar, the upper needle bar fastening ring and the lower needle bar fastening ring can adopt hoops with various structures. Preferably, one side of going up needle bar tight circle, lower needle bar tight circle is provided with the opening, and the fastening bolt of locking staple bolt is worn to be equipped with to the opening part, more preferably, the opening part is provided with the internal thread with fastening bolt complex.
In the above-described rotary needle bar locking structure, the needle bar joint assembly includes three parts: the needle bar connecting rod comprises a sleeve connected with the rotary needle bar, a connector connected with the sliding block and a hinge part hinged with the needle bar connecting rod.
In foretell rotatory needle bar locking structure, the outer end of needle bar joint subassembly is connected with the slider, the slider slides and establishes in the guide way of vertical setting, the guide way is fixed on the aircraft nose, and power device drive needle bar joint subassembly drives rotatory needle bar and reciprocates from top to bottom along the guide way direction.
In the above-mentioned locking structure for a rotary needle rod, the middle part of the needle rod joint assembly is hinged to one end of a needle rod connecting rod, the other end of the needle rod connecting rod is hinged to a needle rod crank, and the needle rod crank is fixed on an output shaft of a power device or connected with the output shaft of the power device through a transmission assembly. The needle rod joint component is hinged with the needle rod connecting rod through a sleeve, and the needle rod connecting rod is hinged with the needle rod crank through a rotating pin.
In the above-mentioned locking structure of the rotary needle bar, the power device is a motor.
Compared with the prior art, the utility model, following beneficial effect has:
the utility model discloses the needle bar tight loop that uses staple bolt locking structure has replaced screw supporting structure's needle bar tight loop, has gained better fastening effect, makes the needle bar tight loop produce the risk greatly reduced of displacement to can support higher rotational speed work. Meanwhile, the device has the advantages of simple and compact structure and convenience in installation.
Drawings
Fig. 1 is a perspective view of the present invention;
reference numerals: 1. rotating the needle rod; 2. a needle bar joint assembly; 3. tightening a loop of the upper needle rod; 4. tightening a loop of the lower needle rod; 5. fastening a bolt; 6. a slider; 7. a guide groove; 8. a needle bar connecting rod; 9. a needle rod crank.
Detailed Description
The invention will be further described in the following with specific embodiments in conjunction with the drawings, see fig. 1:
the utility model provides a rotatory needle bar locking structure, the middle part cover of rotatory needle bar 1 is equipped with needle bar joint assembly 2, needle bar joint assembly 2 and 1 clearance fit of rotatory needle bar guarantee when rotatory needle bar 1 can the up-and-down motion, also can be rotary motion, rotatory needle bar 1 goes up the cover and establishes last needle bar tight circle 3 and lower needle bar tight circle 4 that is fixed with locking needle bar joint assembly 2, the lower terminal surface of going up needle bar tight circle 3 is connected with the up end contact of needle bar joint assembly 2, the up end of lower needle bar tight circle 4 is connected with the lower terminal surface contact of needle bar joint assembly 2, it tightly encircles 3, lower needle bar tight circle 4 and is the staple bolt structure to go up the needle bar.
The upper needle rod tight ring 3 and the lower needle rod tight ring 4 are tightly fixed on the rotary needle rod 1 through the fastening bolt 5, and the structure is as follows: one side of the upper needle rod tight ring 3 and the lower needle rod tight ring 4 is provided with an opening, a fastening bolt 5 of a locking hoop is arranged at the opening in a penetrating mode, the opening is provided with an internal thread matched with the fastening bolt 5, and the fastening bolt 5 is in threaded connection with the internal thread. Of course, the upper needle bar fastening ring 3 and the lower needle bar fastening ring 4 can also adopt hoops with other structures.
The needle bar joint assembly 2 described above comprises three parts: a sleeve connected with the rotary needle bar 1, a connector connected with the slide block 6, and a hinge part hinged with the needle bar connecting rod 8. The specific connecting structure of the needle bar joint component 2 and other components is as follows:
the outer end connector of the needle bar joint component 2 is connected with a sliding block 6, the sliding block 6 is slidably arranged in a vertically arranged guide groove 7, the guide groove 7 is fixed on the machine head, and the power device drives the needle bar joint component 2 to drive the rotary needle bar 1 to reciprocate up and down along the direction of the guide groove 7.
The middle hinged part of the needle rod joint component 2 is hinged with one end of a needle rod connecting rod 8, the other end of the needle rod connecting rod 8 is hinged with a needle rod crank 9, and the needle rod crank 9 is fixed on an output shaft of a power device or is connected with the output shaft of the power device through a transmission component. The needle bar joint component 2 is hinged with a needle bar connecting rod 8 through a sleeve, and the needle bar connecting rod 8 is hinged with a needle bar crank 9 through a rotating pin.
The driving mode of the vertical movement of the rotary needle bar 1 is as follows: the power device drives the needle rod crank to rotate, the rotating needle rod crank drives the needle rod connecting rod 8 to further drive the needle rod joint component 2 to move, and due to the existence of the guide groove 7, the needle rod joint component 2 can only reciprocate up and down along the direction of the guide groove 7, and finally drives the rotating needle rod 1 to reciprocate up and down.
Preferably, the power device is a motor.
The above-mentioned embodiment is only the preferred embodiment of the present invention, and does not limit the protection scope of the present invention according to this, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (5)
1. The utility model provides a rotatory needle bar locking structure, the middle part cover of rotatory needle bar (1) is equipped with needle bar joint assembly (2), needle bar joint assembly (2) and rotatory needle bar (1) clearance fit, a serial communication port, rotatory needle bar (1) is gone up the cover and is established last needle bar tight circle (3) and lower needle bar tight circle (4) that are fixed with locking needle bar joint assembly (2), the lower terminal surface of going up needle bar tight circle (3) is connected with the up end contact of needle bar joint assembly (2), the up end of lower needle bar tight circle (4) is connected with the lower terminal surface contact of needle bar joint assembly (2), it is staple bolt structure to go up needle bar tight circle (3), lower needle bar tight circle (4).
2. A rotary needle bar locking structure according to claim 1, wherein an opening is provided at one side of the upper needle bar fastening ring (3) and the lower needle bar fastening ring (4), and a fastening bolt (5) for locking the hoop is inserted into the opening.
3. A locking structure of a rotary needle bar according to claim 1, wherein the outer end of the needle bar joint component (2) is connected with a sliding block (6), the sliding block (6) is slidably arranged in a vertically arranged guide groove (7), the guide groove (7) is fixed on the machine head, and the power device drives the needle bar joint component (2) to drive the rotary needle bar (1) to reciprocate up and down along the direction of the guide groove (7).
4. A rotary needle bar locking structure according to claim 3, wherein the middle part of the needle bar joint component (2) is hinged with one end of the needle bar connecting rod (8), the other end of the needle bar connecting rod (8) is hinged with the needle bar crank (9), and the needle bar crank (9) is fixed on the output shaft of the power device or is connected with the output shaft of the power device through a transmission component.
5. A rotary needle bar locking arrangement according to claim 4, wherein the power means is an electric motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022320042.7U CN213447581U (en) | 2020-10-17 | 2020-10-17 | Rotary needle rod locking structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022320042.7U CN213447581U (en) | 2020-10-17 | 2020-10-17 | Rotary needle rod locking structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213447581U true CN213447581U (en) | 2021-06-15 |
Family
ID=76292235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022320042.7U Active CN213447581U (en) | 2020-10-17 | 2020-10-17 | Rotary needle rod locking structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213447581U (en) |
-
2020
- 2020-10-17 CN CN202022320042.7U patent/CN213447581U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Zhejiang yikeda Intelligent Technology Co.,Ltd. Assignor: BULLMER ELECTROMECHANICAL TECHNOLOGY Co.,Ltd. Contract record no.: X2022330000257 Denomination of utility model: A locking structure of rotating needle bar Granted publication date: 20210615 License type: Common License Record date: 20220701 |
|
| EE01 | Entry into force of recordation of patent licensing contract |