CN215251621U - Needle bar transmission mechanism - Google Patents
Needle bar transmission mechanism Download PDFInfo
- Publication number
- CN215251621U CN215251621U CN202022701997.7U CN202022701997U CN215251621U CN 215251621 U CN215251621 U CN 215251621U CN 202022701997 U CN202022701997 U CN 202022701997U CN 215251621 U CN215251621 U CN 215251621U
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- Prior art keywords
- needle bar
- needle
- fixedly connected
- lug
- crank
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 26
- 230000007246 mechanism Effects 0.000 title claims abstract description 24
- 239000011435 rock Substances 0.000 abstract description 3
- 238000009987 spinning Methods 0.000 abstract description 2
- 238000009958 sewing Methods 0.000 description 12
- 239000000463 material Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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- Sewing Machines And Sewing (AREA)
Abstract
The utility model relates to a spinning machine technical field, concretely relates to needle bar drive mechanism. Comprises a needle bar component and a transmission component for driving the needle bar component; the needle bar assembly comprises a needle bar, a needle row and a needle bar control block; the needle row is fixedly connected to the bottom end of the needle rod; the needle bar control block is fixedly connected to the needle bar, and one end of the needle bar control block is provided with a lug; the transmission assembly comprises a driving shaft, a crank, a connecting rod and a fixing piece; the crank is fixedly connected to the driving shaft; one end of the connecting rod is rotationally connected with the crank, the connecting position of the connecting rod is not overlapped with the driving shaft, and the other end of the connecting rod is rotationally connected with the lug; the fixed piece is provided with a sliding groove; the outer part of the lug is fixedly connected with a sliding block; the sliding block is connected with the sliding groove in a sliding mode. The utility model provides a pair of needle bar drive mechanism has solved the needle bar drive mechanism transmission in prior art and has been stable inadequately, produces easily and rocks, makes the stitch seam distribute inhomogeneously, influences product quality's problem.
Description
Technical Field
The utility model relates to a spinning machine technical field, concretely relates to needle bar drive mechanism.
Background
The sewing machine is mainly a machine which uses a sewing thread to form a stitch on a sewing material and enables one layer or a plurality of layers of sewing materials to be interwoven or sewed; the needle bar is an important component in the sewing machine, the transmission of the needle bar is stable, the stitch distribution can be uniform, and the product quality can be guaranteed. The performance of the needle bar drive therefore plays a very important role in the overall sewing machine.
In the prior art, the transmission of a needle bar transmission mechanism is not stable enough, and the needle bar transmission mechanism is easy to shake, so that stitches are not uniformly distributed, and the product quality is influenced. A needle bar transmission mechanism is proposed to solve the above-mentioned problems in the prior art.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a needle bar drive mechanism aims at solving the needle bar drive mechanism transmission in the prior art and is stable inadequately, produces easily and rocks, makes the stitch uneven distribution, influences product quality's problem.
In order to achieve the purpose, the utility model provides a needle rod transmission mechanism, which comprises a needle rod component and a transmission component for driving the needle rod component to transmit; wherein:
the needle bar assembly comprises a needle bar, a needle row and a needle bar control block; the needle row is fixedly connected to the bottom end of the needle rod; the needle bar control block is arranged above the needle bar and is fixedly connected to the needle bar, and one end of the needle bar control block is provided with a lug extending outwards;
the transmission assembly comprises a driving shaft, a crank, a connecting rod and a fixing piece; the driving shaft is arranged behind the lug; the crank is fixedly connected to one end, close to the needle bar control block, of the driving shaft; the connecting rod is arranged between the crank and the needle rod, one end of the connecting rod is rotatably connected to the outer side of the crank, and the other end of the connecting rod is sleeved on the lug and is rotatably connected with the lug; the fixing piece is fixedly arranged at the bottom end of the crank, and one end of the fixing piece, which is close to the lug, is provided with a sliding groove; one end of the lug, which is close to the fixed part, is fixedly connected with a sliding block corresponding to the sliding groove; the sliding block is connected with the sliding groove in a sliding mode and can slide up and down along the sliding groove.
More specifically, a plurality of evenly distributed machine needle mounting holes are formed in the bottom end of the needle bar.
More specifically, the top end of the needle bar is fixedly connected with a first lead plate, and a first lead hole corresponding to the needle mounting hole is formed in the first lead plate.
More specifically, a fixed sleeve is arranged above the needle rod control block and is fixedly connected to the needle rod; the fixing sleeve is fixedly connected with a second lead plate which extends outwards, and a plurality of second lead holes which are uniformly distributed are formed in the second lead plate.
More specifically, fixed cover top is equipped with the stop collar, stop collar fixed connection be in on the needle bar.
More specifically, the two ends of the driving shaft are respectively connected with a bearing.
The utility model relates to a needle bar drive mechanism's technological effect does:
1. the transmission is stable; the design of the sliding groove and the sliding block limits the motion trail of the needle rod, so that the needle rod stably makes lifting motion along the direction of the sliding groove, and the needle rod can sew evenly distributed stitches on the cloth.
2. The wire supply is stable; the second lead plate is fixedly connected to the needle rod through the fixing sleeve, so that the second lead plate can move up and down along with the needle rod, sewing threads introduced from the second lead hole can pull the threads in advance when the needle rod is lifted, thread supply is completed, friction between the sewing threads and the second lead hole when the needle rod falls is reduced, thread breakage caused by friction is reduced, and stable thread supply of the sewing threads is realized.
Drawings
Fig. 1 is a schematic structural view of a needle bar transmission mechanism according to the present invention;
fig. 2 is a right side view of a needle bar transmission mechanism according to the present invention;
fig. 3 is a partial schematic view based on fig. 2.
1-needle bar assembly; 2-a transmission assembly; 3-a lead assembly;
101-a needle bar; 102-needle row; 103-needle bar control block; 104-needle mounting holes;
105-a bump;
201 — a drive shaft; 202-crank; 203-connecting rod; 204-a fixing piece; 205-a bearing;
206-a chute; 207-a slide block;
301 — a first lead plate; 302-fixing sleeve; 303 — a second lead plate; 304-a stop collar;
305 — a first wire hole; 306 — a second feedthrough;
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present.
A preferred embodiment of the present invention, which is realized as such, referring to fig. 1 to 3, is a needle bar transmission mechanism, which includes a needle bar assembly 1 and a transmission assembly 2 for driving the needle bar assembly 1 to transmit; wherein:
the needle bar assembly 1 comprises a needle bar 101, a needle bar 102 and a needle bar control block 103; the needle bar 102 is fixedly connected with the bottom end of the needle rod 101, and a plurality of uniformly distributed machine needle mounting holes 104 are formed in the bottom end of the needle bar 102; the needle bar control block 103 is disposed above the needle bar 102 and is fixedly attached to the needle bar 101, and its rear end is provided with a projection 105 extending outward.
The transmission assembly 2 comprises a driving shaft 201, a crank 202, a connecting rod 203 and a fixing piece 204; the driving shaft 201 is arranged above the lug 105, two ends of the driving shaft are respectively connected with a bearing 205, and the driving shaft 201 is rotatably connected with the sewing machine body through the bearings 205; the crank 202 is fixedly connected to the front side of the bearing 205 near the needle bar control block 103 and is fixedly connected to the drive shaft 201; the connecting rod 203 is arranged between the crank 202 and the needle bar 101, the top end of the connecting rod is rotationally connected with the crank 202, the connecting position is not overlapped with the driving shaft 201, and the other bottom end of the connecting rod is rotationally connected with the lug 105; the fixing member 204 is fixedly disposed at the bottom end of the crank 202, and a sliding slot 206 is formed at one end of the fixing member close to the protrusion 105; the outermost end of the bump 105 is fixedly connected with a slide block 207 corresponding to the slide groove 206; the sliding block 207 is slidably connected to the sliding groove 206, and can slide up and down along the sliding groove 206.
Preferably, the needle bar transmission assembly further comprises a lead assembly 3, wherein the lead assembly 3 comprises a first lead plate 301, a fixed sleeve 302, a second lead plate 303 and a limiting sleeve 304; the first lead plate 301 is fixedly connected to the top end of the needle bar 102, and is provided with a plurality of first lead holes 305 corresponding to the needle mounting holes 104; the fixed sleeve 302 is arranged above the needle rod control block 103 and is fixedly connected to the needle rod 101; the second lead plate 303 is fixedly connected to the fixing sleeve 302, extends outwards, and is provided with a plurality of second lead holes 306 which are uniformly distributed; the limiting sleeve 304 is arranged above the second lead plate 303 and is fixedly connected to the needle rod 101, and the limiting sleeve 304 prevents the fixed sleeve 302 or the needle rod control block 103 from being loosened and separated from the needle rod 101.
The utility model discloses a working process does:
the motor is adopted to drive the driving shaft 201 to rotate, the crank 202 rotates along with the driving shaft 201 and drives the top end of the connecting rod 203 to do circular motion, the bottom end of the connecting rod 203 is acted by the sliding block 207 and the sliding groove 206 to drive the lug 105 to do up-and-down motion stably, so that the needle bar control block 103 drives the needle bar 101 to do up-and-down motion, even if the needle bar 102 does up-and-down motion, sewing threads are led in from the second lead hole 306 and are applied to a machine needle after passing through the first lead hole 305, and the second lead plate 303 does up-and-down motion along with the needle bar 101, so that the sewing threads can move along with the needle bar 101, and the threads are stably supplied.
The utility model relates to a pair of presser foot drive mechanism through reasonable structure setting, has solved the needle bar drive mechanism transmission in the prior art and has stabilized inadequately, produces easily and rocks, makes the stitch seam distribute inhomogeneously, influences product quality's problem.
The above description is only for the preferred embodiment of the present invention, and the structure is not limited to the above-mentioned shape, and any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A needle bar transmission mechanism is characterized in that: comprises a needle bar component and a transmission component for driving the needle bar component to transmit; wherein:
the needle bar assembly comprises a needle bar, a needle row and a needle bar control block; the needle row is fixedly connected to the bottom end of the needle rod; the needle bar control block is arranged above the needle bar and is fixedly connected to the needle bar, and one end of the needle bar control block is provided with a lug extending outwards;
the transmission assembly comprises a driving shaft, a crank, a connecting rod and a fixing piece; the driving shaft is arranged behind the lug; the crank is fixedly connected to one end, close to the needle bar control block, of the driving shaft; the connecting rod is arranged between the crank and the needle rod, one end of the connecting rod is rotatably connected to the outer side of the crank, and the other end of the connecting rod is sleeved on the lug and is rotatably connected with the lug; the fixing piece is fixedly arranged at the bottom end of the crank, and one end of the fixing piece, which is close to the lug, is provided with a sliding groove; one end of the lug, which is close to the fixed part, is fixedly connected with a sliding block corresponding to the sliding groove; the sliding block is connected with the sliding groove in a sliding mode and can slide up and down along the sliding groove.
2. The needle bar drive mechanism of claim 1, further comprising: and a plurality of machine needle mounting holes which are uniformly distributed are formed in the bottom end of the needle row.
3. The needle bar drive mechanism of claim 2, further comprising: the needle bar top fixedly connected with first lead plate, set up the first pin hole corresponding with the eedle mounting hole on the first lead plate.
4. The needle bar drive mechanism of claim 1, further comprising: a fixed sleeve is arranged above the needle rod control block and is fixedly connected to the needle rod; the fixing sleeve is fixedly connected with a second lead plate which extends outwards, and a plurality of second lead holes which are uniformly distributed are formed in the second lead plate.
5. The needle bar drive mechanism of claim 4, further comprising: the needle bar is characterized in that a limiting sleeve is arranged above the fixed sleeve and fixedly connected to the needle bar.
6. The needle bar drive mechanism of claim 1, further comprising: and two ends of the driving shaft are respectively connected with a bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022701997.7U CN215251621U (en) | 2020-11-20 | 2020-11-20 | Needle bar transmission mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022701997.7U CN215251621U (en) | 2020-11-20 | 2020-11-20 | Needle bar transmission mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215251621U true CN215251621U (en) | 2021-12-21 |
Family
ID=79451819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022701997.7U Active CN215251621U (en) | 2020-11-20 | 2020-11-20 | Needle bar transmission mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215251621U (en) |
-
2020
- 2020-11-20 CN CN202022701997.7U patent/CN215251621U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 528518 No. 52 Baoying Road, Mingcheng Town, Gaoming District, Foshan City, Guangdong Province (Residence application) Patentee after: FOSHAN CITY KEHUA SMART QUILTING EQUIPMENT CO.,LTD. Address before: 528518 workshop 1, No.705, south side of Gaoming Avenue, Mingcheng Town, Gaoming District, Foshan City, Guangdong Province Patentee before: FOSHAN CITY KEHUA SMART QUILTING EQUIPMENT CO.,LTD. |
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| CP02 | Change in the address of a patent holder |