CN210529213U - Needle thread tension adjusting structure for sewing machine - Google Patents
Needle thread tension adjusting structure for sewing machine Download PDFInfo
- Publication number
- CN210529213U CN210529213U CN201921038829.5U CN201921038829U CN210529213U CN 210529213 U CN210529213 U CN 210529213U CN 201921038829 U CN201921038829 U CN 201921038829U CN 210529213 U CN210529213 U CN 210529213U
- Authority
- CN
- China
- Prior art keywords
- roller
- sewing machine
- fixedly connected
- rack
- needle thread
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model relates to a sewing machine technical field discloses a needle thread tension adjusts structure for sewing machine, roller assembly on adjustment mechanism top is included and is located the adjustment mechanism, adjustment mechanism includes the shell body, two drive gear have been cup jointed to the inboard that the surface of swing arm is located the shell body, drive gear's rear end meshing is connected with rack assembly, roller assembly includes the tensioning roller, the inboard embedding of tensioning roller is provided with the bearing, the roller carrier has been cup jointed in the outside of fixed axle. The utility model discloses a knob drives drive gear and rotates, drives rack subassembly through drive gear and reciprocates to can adjust the height of roller subassembly, and then can adjust the tension of sewing machine's needle line, convenient, swift, loosen the knob after, the spring can automatic re-setting, and then makes spacing piece card in limit gear, thereby makes the roller subassembly remain stable, has avoided the needle line to collapse absolutely, has improved the security of needle line.
Description
Technical Field
The utility model relates to a sewing machine technical field specifically is a needle and line tension adjusts structure for sewing machine.
Background
In the case of a conventional sewing machine, an electric sewing machine or a computer sewing machine, if the upper thread is felt to be too tight or too loose during sewing, the tension of the upper thread needs to be adjusted, and the tension adjustment device needs to be used for adjusting the tension.
Chinese patent discloses a tension adjusting structure of a sewing machine (No. CN202482613U), which can make the procedure of adjusting tension of a needle thread more convenient by a simple structure, but the adjustment precision is not high and the stability of the needle thread is not good. Accordingly, those skilled in the art have provided a needle thread tension adjusting structure for a sewing machine to solve the problems set forth in the background art described above.
Disclosure of Invention
An object of the utility model is to provide a needle and thread tension adjusts structure for sewing machine to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a needle thread tension adjusting structure for a sewing machine comprises an adjusting mechanism and a roller assembly positioned at the top end of the adjusting mechanism,
the adjusting mechanism comprises an outer shell, a rotary rod is embedded into one end of the outer shell, a spring is sleeved on the outer surface of the rotary rod, two transmission gears are sleeved on the inner side of the outer shell, one end of the rotary rod is fixedly connected with a knob on one side of the spring, a limiting gear is arranged on the other end of the rotary rod, the inner side of the outer shell, the rear ends of the transmission gears are meshed and connected with a rack assembly, guide frames are sleeved on the upper end and the lower end of the outer side of the rack assembly, a limiting piece is embedded into the rear end of the limiting gear, and the rear end of the limiting piece is fixedly connected with the inner side;
the roller assembly includes the tensioning roller, the inboard embedding of tensioning roller is provided with the bearing, the inboard of bearing is run through and is provided with the fixed axle, the roller frame has been cup jointed in the outside of fixed axle, and the outside that the front and back end of fixed axle is located the roller frame all is connected with the nut through thread engagement, the tensioning roller is located the inboard of roller frame, the roller frame passes through nut fixed connection with the fixed axle.
As a further aspect of the present invention: the rack component comprises a rack, a top fixedly connected with upper sliding rod of the rack, a bottom fixedly connected with lower sliding rod of the rack, a bottom fixedly connected with card of the lower sliding rod, and a top fixedly connected with fixing disc of the upper sliding rod.
As a further aspect of the present invention: the guide frame comprises a sliding groove, the rear end of the sliding groove is fixedly connected with a connecting block, and the rear end of the connecting block is fixedly connected with a fixing block.
As a further aspect of the present invention: the fixed disk is fixedly connected with the bottom end of the roller frame through screws, and the fixed block is also fixedly connected with the upper end and the lower end of the inner wall of the outer shell through screws.
As a further aspect of the present invention: the upper sliding rod and the lower sliding rod are embedded into the inner sides of the corresponding sliding grooves and are in sliding connection with the corresponding sliding grooves.
As a further aspect of the present invention: the thickness of drive gear is greater than limit gear's thickness, the swing arm rotates with the shell body and is connected.
Compared with the prior art, the beneficial effects of the utility model are that:
drive gear through the knob and rotate, drive rack subassembly through drive gear and reciprocate to can adjust the height of roller subassembly, and then can adjust the tension of sewing machine's needle line accurately, convenient, swift, loosen the knob after, the spring can automatic re-setting, and then makes spacing piece card in limit gear, thereby makes the roller subassembly remain stable, has avoided the needle line to collapse absolutely, has improved the security of needle line.
Drawings
FIG. 1 is a schematic view showing a structure of a needle thread tension adjusting structure for a sewing machine;
FIG. 2 is a schematic sectional view of an adjusting mechanism in a needle thread tension adjusting structure for a sewing machine;
FIG. 3 is an exploded view of a roller assembly for use in a needle thread tensioning arrangement for a sewing machine;
FIG. 4 is a schematic view of a rack assembly in a needle thread tension adjusting structure for a sewing machine;
FIG. 5 is a schematic view showing a structure of a guide frame in a needle thread tension adjusting structure for a sewing machine.
In the figure: 1. an adjustment mechanism; 11. an outer housing; 12. a spring; 13. a knob; 14. a rack assembly; 141. a rack; 142. a sliding rod is arranged; 143. fixing the disc; 144. a lower sliding rod; 145. a card; 15. a transmission gear; 16. a limiting sheet; 17. a limit gear; 18. a guide frame; 181. a chute; 182. connecting blocks; 183. a fixed block; 19. rotating the rod; 2. a roller assembly; 21. a tension roller; 22. a bearing; 23. a roller frame; 24. a fixed shaft; 25. and (4) a nut.
Detailed Description
Referring to fig. 1-5, in an embodiment of the present invention, a needle thread tension adjusting structure for a sewing machine includes an adjusting mechanism 1 and a roller assembly 2 located at a top end of the adjusting mechanism 1,
the adjusting mechanism 1 comprises an outer shell 11, a rotating rod 19 is embedded into one end of the outer shell 11, a spring 12 is sleeved on the outer surface of the rotating rod 19 and positioned on the outer side of the outer shell 11, two transmission gears 15 are sleeved on the outer surface of the rotating rod 19 and positioned on the inner side of the outer shell 11, a knob 13 is fixedly connected to one side of the rotating rod 19 and positioned on one side of the spring 12, a limiting gear 17 is arranged on the other end of the rotating rod 19 and positioned on the inner side of the outer shell 11, a rack assembly 14 is connected to the rear end of the transmission gear 15 in a meshed manner, guide frames 18 are sleeved on the upper end and the lower end of the outer side of the rack assembly 14, a limiting piece 16 is embedded into the rear;
the roller assembly 2 comprises a tension roller 21, a bearing 22 is embedded in the inner side of the tension roller 21, a fixing shaft 24 penetrates through the inner side of the bearing 22, a roller frame 23 is sleeved on the outer side of the fixing shaft 24, the front end and the rear end of the fixing shaft 24 are located on the outer side of the roller frame 23 and are connected with a nut 25 through threaded engagement, the tension roller 21 is located on the inner side of the roller frame 23, and the roller frame 23 is fixedly connected with the fixing shaft 24 through the nut 25.
In fig. 2: the rack assembly 14 includes a rack 141, an upper slide bar 142 is fixedly connected to a top end of the rack 141, a lower slide bar 144 is fixedly connected to a bottom end of the rack 141, a clamping piece 145 is fixedly connected to a bottom end of the lower slide bar 144, and a fixed disc 143 is fixedly connected to a top end of the upper slide bar 142, so that the roller assembly 2 can be stably moved by the rack assembly 14.
In fig. 2: the guide frame 18 includes a sliding groove 181, a connecting block 182 is fixedly connected to a rear end of the sliding groove 181, and a fixing block 183 is fixedly connected to a rear end of the connecting block 182, so that the upper slide bar 142 and the lower slide bar 144 can slide in the corresponding sliding grooves 181.
In fig. 2: the fixing plate 143 is fixedly connected to the bottom end of the roller frame 23 by screws, so that the roller frame 23 and the rack assembly 14 can be fixed together, and the fixing block 183 is also fixedly connected to the upper and lower ends of the inner wall of the outer housing 11 by screws, so that the fixing block 183 and the outer housing 11 can be stably fixed together.
In fig. 2: the upper slide bar 142 and the lower slide bar 144 are each embedded inside the corresponding slide groove 181, and the upper slide bar 142 and the lower slide bar 144 are each slidably coupled to the corresponding slide groove 181, so that the rack assembly 14 can be stably moved up and down in the vertical direction.
In fig. 2: the thickness of the transmission gear 15 is larger than that of the limit gear 17, and the rotating rod 19 is rotatably connected with the outer shell 11, so that the transmission gear 15 can be continuously meshed with the rack 141 when the limit gear 17 leaves the limit piece 16.
The utility model discloses a theory of operation: firstly, the needle thread of the sewing machine is embedded in the upper end of the outer surface of a tension roller 21, then the needle thread is in a tensioned state, when the tension of the needle thread needs to be adjusted, firstly, a thumb and a forefinger are used for pinching a knob 13, then, the knob 13 is pushed towards one end of an outer shell 11 in the horizontal direction, a spring 12 is pressed to deform, a limit gear 17 leaves a limit sheet 16, as the thickness of a transmission gear 15 is larger than that of the limit gear 17, the transmission gear 15 is continuously meshed with a rack 141, at the moment, the knob 13 is rotated, the knob 13 drives a rotary rod 19 to rotate, the rotary rod 19 drives the transmission gear 15 to rotate, the transmission gear 15 drives a rack component 14 to move up and down in the vertical direction, further, the upper end and the lower end of a roller component 2 are driven, the needle thread is tensioned or loosened through the roller 21, the tension adjustment of the needle thread is realized, the limiting piece 16 is automatically embedded in the limiting gear 17, and meanwhile, the transmission gear 15 is continuously meshed with the rack 141, so that the rack assembly 14 is ensured to be in a fixed state, and the stability of the roller assembly 2 is further ensured.
The above-mentioned, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. A needle thread tension adjusting structure for a sewing machine comprises an adjusting mechanism (1) and a roller assembly (2) positioned at the top end of the adjusting mechanism (1), and is characterized in that,
the adjusting mechanism (1) comprises an outer shell (11), one end of the outer shell (11) is embedded with a rotating rod (19), the outer surface of the rotating rod (19) is positioned at the outer side of the outer shell (11) and is sleeved with a spring (12), and the outer surface of the rotating rod (19) is positioned at the inner side of the outer shell (11) and is sleeved with two transmission gears (15), one end of the rotary rod (19) is fixedly connected with a knob (13) at one side of the spring (12), and the other end of the rotating rod (19) is positioned at the inner side of the outer shell (11) and is provided with a limit gear (17), the rear end of the transmission gear (15) is engaged and connected with a rack component (14), the upper end and the lower end of the outer side of the rack component (14) are sleeved with a guide frame (18), the rear end of the limiting gear (17) is embedded with a limiting piece (16), and the rear end of the limiting piece (16) is fixedly connected with the inner side wall of the outer shell (11);
roller subassembly (2) are including tensioning roller (21), the inboard embedding of tensioning roller (21) is provided with bearing (22), the inboard of bearing (22) is run through and is provided with fixed axle (24), roller frame (23) have been cup jointed in the outside of fixed axle (24), and the front and back end of fixed axle (24) is located the outside of roller frame (23) and all is connected with nut (25) through thread engagement, tensioning roller (21) are located the inboard of roller frame (23), roller frame (23) pass through nut (25) fixed connection with fixed axle (24).
2. The needle thread tension adjusting structure for a sewing machine according to claim 1, wherein the rack assembly (14) includes a rack (141), an upper slide bar (142) is fixedly connected to a top end of the rack (141), a lower slide bar (144) is fixedly connected to a bottom end of the rack (141), a clamping piece (145) is fixedly connected to a bottom end of the lower slide bar (144), and a fixing plate (143) is fixedly connected to a top end of the upper slide bar (142).
3. The needle thread tension adjusting structure for a sewing machine according to claim 2, wherein the guide frame (18) includes a slide groove (181), a connecting block (182) is fixedly connected to a rear end of the slide groove (181), and a fixing block (183) is fixedly connected to a rear end of the connecting block (182).
4. The needle thread tension adjusting structure for a sewing machine according to claim 3, wherein the fixed plate (143) is fixedly connected with the bottom end of the roller frame (23) by screws, and the fixed block (183) is also fixedly connected with the upper and lower ends of the inner wall of the outer case (11) by screws.
5. A needle thread tension adjusting structure for a sewing machine according to claim 3, wherein the upper slider (142) and the lower slider (144) are each embedded inside the corresponding runner (181), and the upper slider (142) and the lower slider (144) are each slidably connected to the corresponding runner (181).
6. A needle thread tension adjusting structure for a sewing machine according to claim 1, wherein the thickness of the transmission gear (15) is larger than that of the limit gear (17), and the rotary lever (19) is rotatably connected to the outer housing (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921038829.5U CN210529213U (en) | 2019-07-05 | 2019-07-05 | Needle thread tension adjusting structure for sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921038829.5U CN210529213U (en) | 2019-07-05 | 2019-07-05 | Needle thread tension adjusting structure for sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210529213U true CN210529213U (en) | 2020-05-15 |
Family
ID=70596770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921038829.5U Active CN210529213U (en) | 2019-07-05 | 2019-07-05 | Needle thread tension adjusting structure for sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210529213U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114232198A (en) * | 2021-12-11 | 2022-03-25 | 绍兴舒涛针纺有限公司 | Warp knitting machine yarn tension device convenient to adjust |
| CN115467101A (en) * | 2022-09-19 | 2022-12-13 | 石狮市鑫隆针织机械有限公司 | Knitting equipment of knitted fabric |
-
2019
- 2019-07-05 CN CN201921038829.5U patent/CN210529213U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114232198A (en) * | 2021-12-11 | 2022-03-25 | 绍兴舒涛针纺有限公司 | Warp knitting machine yarn tension device convenient to adjust |
| CN115467101A (en) * | 2022-09-19 | 2022-12-13 | 石狮市鑫隆针织机械有限公司 | Knitting equipment of knitted fabric |
| CN115467101B (en) * | 2022-09-19 | 2023-09-15 | 泉州市弘扬精密机械有限公司 | Knitting equipment of knitted fabric |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210529213U (en) | Needle thread tension adjusting structure for sewing machine | |
| CN208331630U (en) | A kind of computer display screen convenient for adjusting | |
| CN111648058A (en) | Sewing machine frame with adjustable height | |
| CN112408764A (en) | Beautiful glass quick cutting device for furniture | |
| CN111436754A (en) | Multi-functional drawing table suitable for mechanical drawing | |
| CN111568480A (en) | Novel tongue depressor for pediatrics | |
| CN208790697U (en) | A kind of flexible circuit board automatic charging device | |
| CN217243311U (en) | Two-section self-locking drawer slide rail | |
| CN214467466U (en) | Projection arrangement that visual transmission design was used | |
| CN213904809U (en) | Liquid crystal display screen convenient to it is clean | |
| CN212865387U (en) | Distance cutting device is used in non-woven fabrics processing | |
| CN209873298U (en) | Sewing machine and feed dog adjustment mechanism thereof | |
| CN209007666U (en) | A kind of polaroid production automatic trimming device | |
| CN209373913U (en) | A kind of improved gear model for demonstration purpose | |
| CN207234927U (en) | The protective cover of intelligent ball machine | |
| CN219392395U (en) | Spectacle frame convenient for replacing lenses | |
| CN219198711U (en) | Display screen equipment | |
| CN220312847U (en) | Optical prism cold working beveling machine | |
| CN208079166U (en) | A kind of Mobile phone screen support plate | |
| CN218263025U (en) | Hammer adjusting mechanism of buttonhole maker | |
| CN219088261U (en) | Multifunctional full-automatic dough blocking rounding machine | |
| CN218928092U (en) | Clamping device for customizing furniture plate | |
| CN215310082U (en) | Multi-functional dance physique trainer | |
| CN211771957U (en) | Presser foot limiting mechanism of embroidery machine head | |
| CN220801280U (en) | Prevent pressing sore and assist turnover device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |