CN107237058B - Needle feeding adjusting structure of sewing machine - Google Patents
Needle feeding adjusting structure of sewing machine Download PDFInfo
- Publication number
- CN107237058B CN107237058B CN201710517680.8A CN201710517680A CN107237058B CN 107237058 B CN107237058 B CN 107237058B CN 201710517680 A CN201710517680 A CN 201710517680A CN 107237058 B CN107237058 B CN 107237058B
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- swing
- needle
- plate
- sewing machine
- hole
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B55/00—Needle holders; Needle bars
- D05B55/14—Needle-bar drives
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B69/00—Driving-gear; Control devices
- D05B69/02—Mechanical drives
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The invention relates to the technical field of sewing machines, in particular to a needle feeding adjusting structure of a sewing machine. The advantages are that: effectively simplified and fed the needle structure, practiced thrift the assemble duration, need not tear open the upper cover when feeding the needle stroke moreover and adjust, also ensured simultaneously to feed needle and the synchronous sewing machine of eedle.
Description
Technical Field
The invention relates to the technical field of sewing machines, in particular to a needle feeding adjusting structure of a sewing machine.
Background
The needle feeding regulating structure of the existing sewing machine comprises a crank-link mechanism driven by a main shaft of the sewing machine, wherein the crank-link mechanism further drives a swinging shaft to work, and the swinging shaft drives a feeding needle to swing. The specific working principle of the structure is as follows: the main shaft rotates anticlockwise to drive the eccentric sleeve to rotate, the eccentric sleeve rotates and drives the needle feeding swing crank to swing through the needle feeding connecting rod, the swing crank drives the swing connecting rod shaft to swing, the swing connecting rod shaft swings to drive the needle feeding swing connecting rod to swing, and finally the needle feeding swing connecting rod drives the needle feeding swing through the swing shaft. The whole structure is complex, the installation is time-consuming and labor-consuming, the cost is high, the upper cover needs to be detached to adjust when the swing stroke of the feeding needle needs to be adjusted, the feeding needle is very inconvenient, the eccentric deflection angle of the main shaft is not easy to guarantee, and the adjustment of the eccentric sleeve is needed to guarantee.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the needle feeding adjusting structure of the sewing machine, which effectively simplifies the needle feeding structure, saves the assembly time, does not need to disassemble an upper cover when the needle feeding stroke is adjusted, and simultaneously ensures the synchronization of the needle feeding and the needle feeding.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a sewing machine feeds needle and adjusts structure, is including installing the oscillating axle in the sewing machine aircraft nose and installing in the needle of feeding of oscillating axle lower extreme, and the upper end adjustable of oscillating axle is installed on the swing crank, and the swing crank is connected through the lower tip of swing crank and swing board, and the upper end of swing board is pricked the head with the needle bar of sewing machine and is articulated.
The invention is further configured to: one end of the needle bar binding head is provided with a sliding block which can slide up and down in a sliding block guide seat of the sewing machine, the needle bar binding head is hinged with the lower end of the needle bar connecting rod, and the swinging plate is arranged on the needle bar binding head between the needle bar connecting rod and the sliding block.
The invention is further configured to: the structure of the swing crank is as follows: the device comprises a swinging plate for installing and fixing the upper end part of a swinging shaft, wherein a crank pin sleeve for sleeving a swinging crank pin is arranged on one side of the swinging plate facing the swinging plate.
The invention is further configured to: the swing plate is provided with a strip-shaped adjusting hole, the upper end of the swing shaft penetrates through the adjusting hole and extends to the upper side of the swing plate, and the upper end of the swing shaft extending to the upper side of the swing plate is connected with an adjusting nut in a threaded mode.
The invention is further configured to: the through hole is arranged on the side wall of the crank pin sleeve, which faces one side of the swinging plate, the fixing pin which penetrates through the through hole and is fixedly connected with the swinging crank pin in the crank pin sleeve is arranged at the position, corresponding to the through hole, on the swinging plate.
The invention is further configured to: and a hinge hole is formed in one side, close to the fixing pin, of the swing plate, and a swing plate screw for mounting the swing plate on the sewing machine shell in a hinged mode is arranged on the hinge hole.
The invention is further configured to: the hinge hole is arranged at the lower end part of the swing plate, a hinged plate is arranged on one side, close to the lower end part, of the lower side edge of the swing plate in a downward protruding mode, and the fixing pin is arranged on the hinged plate.
The invention is further configured to: a strip-shaped movable hole is formed in the position, close to the upper end, of the swinging plate, and the needle rod tying head penetrates through the movable hole.
The invention is further configured to: the needle feeding device is characterized in that a swing shaft sleeve is sleeved on a swing shaft on the lower side of the swing crank, a needle feeding frame is installed on the swing shaft on the lower side of the swing shaft sleeve, and a feeding needle is installed at the lower end of the needle feeding frame.
The invention is further configured to: the upper end part of the needle feeding frame is provided with an upper opening hole, the two sides of the opening of the upper opening hole are respectively provided with an upper clamping seat which is clamped by a screw, and the lower end part of the swing shaft extends into the upper opening hole and is fixed by clamping the upper clamping seats at the two sides of the opening of the upper opening hole by the screw; the lower end part of the needle feeding frame is provided with a lower opening hole, the two sides of the opening of the lower opening hole are respectively provided with a lower clamping seat clamped by a screw, and the upper end part of the needle feeding frame extends into the lower opening hole and is fixed by the lower clamping seats clamped by the screw.
By adopting the technical scheme, the invention achieves the technical effects that: through improving the optimization of feeding needle wobbling structure with driving, prick the head through utilizing the needle bar and come to drive through crank connecting rod structure and feed the needle swing, effectively simplified and fed the needle structure, save the assemble duration, and need not tear open the upper cover when feeding the needle stroke regulation, it is synchronous with the eedle to have ensured simultaneously also to feed the needle, in addition, it is adjustable through improving the position relation between swing axle and the swing crank, so can be more convenient more swift carry out quick adjustment to the stroke of feeding the needle, because the particularity of the position that sets up of this structure, when the stroke of needle is fed in the regulation, can adjust or only need pull down the left cover of aircraft nose can be with the regulation through seting up corresponding hole on the casing, for traditional regulation mode, a large amount of time has been saved, the complexity of accommodation process and structure is all simplified to some extent.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings.
Fig. 1 is a schematic diagram of the structural principle of the present invention.
Fig. 2 is a schematic structural diagram of the wobble plate of the present invention.
Fig. 3 is a schematic view of the construction of the rocking crank of the present invention.
Fig. 4 is a structural schematic view of the needle feeding frame of the invention.
Detailed Description
Referring to fig. 1 to 4, the needle feeding adjusting structure of the sewing machine disclosed by the invention comprises a swing shaft 10 installed in a sewing machine head and a needle feeding 11 installed at the lower end of the swing shaft 10, wherein the upper end of the swing shaft 10 is adjustably installed on a swing crank 12, a swing shaft sleeve 28 is sleeved on the swing shaft 10 at the lower side of the swing crank 12 in the sewing machine, a needle feeding frame 29 is installed on the swing shaft 10 at the lower side of the swing shaft sleeve 28, and the needle feeding 11 is installed at the lower end of the needle feeding frame 29. Wherein, the upper end of the needle feeding frame 29 is provided with an upper opening hole 30, the two sides of the opening of the upper opening hole 30 are respectively provided with an upper clamping seat 31 which is clamped by a screw, the lower end of the swing shaft 10 extends into the upper opening hole 30 and is fixed by the upper clamping seats 31 which are clamped by the screw on the two sides of the opening of the upper opening hole 30; the lower end of the needle feeding frame 29 is provided with a lower opening hole 32, the two sides of the opening of the lower opening hole 32 are respectively provided with a lower clamping seat 33 which is clamped by screws, and the upper end of the needle feeding 11 extends into the lower opening hole 32 and is fixed by the lower clamping seats 33 which are clamped by screws at the two sides of the opening of the lower opening hole 32. Through the fastening mode, the feeding needle frame and the swinging shaft and parts related to the feeding needle, the feeding needle frame and the swinging shaft are mainly convenient to maintain and replace, so that the assembling, disassembling and maintaining convenience and the working efficiency of the product can be improved to a certain extent.
In the present embodiment, the oscillating crank 12 is connected to a lower end portion of an oscillating plate 14 via an oscillating crank pin 13, and an upper end portion of the oscillating plate 14 is hinged to a needle bar binding head 15 of the sewing machine. A slider capable of sliding up and down in a slider guide 16 of a sewing machine is mounted on one end of a needle bar binding head 15, the needle bar binding head 15 is hinged to the lower end of a needle bar connecting rod 17, and a swing plate 14 is provided on the needle bar binding head 15 between the needle bar connecting rod 17 and the slider. The swing plate 14 on the needle bar binding head arranged between the needle bar connecting rod and the sliding block is provided with a movable hole 27, namely, the position of the swing plate 14 close to the upper end part is provided with a strip-shaped movable hole 27, and the needle bar binding head 15 is arranged through the movable hole 27.
In order to facilitate the effect of adjusting the position of the oscillating shaft relative to the oscillating crank, the oscillating crank 12 has the following structure: the device comprises a swinging plate 18 for installing and fixing the upper end part of the swinging shaft 10, and a crank pin sleeve 19 for sleeving the swinging crank pin 13 is arranged on one side of the swinging plate 18 facing the swinging plate 14. The oscillating plate 18 is provided with a strip-shaped adjusting hole 20, the upper end of the oscillating shaft 10 passes through the adjusting hole 20 and extends to the upper side of the oscillating plate 18, and the upper end of the oscillating shaft 10 extending to the upper side of the oscillating plate 18 is screwed with an adjusting nut 21. The distance between the swinging shaft and the crank pin sleeve of the swinging crank can be adjusted through the adjusting nut, so that the swinging angle of the swinging shaft is adjusted, the feeding needle is fixedly connected with the swinging shaft relatively, and the swinging angle of the feeding needle can be correspondingly changed, namely the swinging stroke is changed.
The side wall of the crank pin sleeve 19 facing the side of the swing plate 14 is provided with a through hole 22, and the position of the swing plate 14 corresponding to the through hole 22 is provided with a fixing pin 23 which passes through the through hole 22 and is fixedly connected with the swing crank pin 13 in the crank pin sleeve 19, so that the installation and the fixation relation between the fixing pin and the swing plate can be facilitated. A hinge hole 24 is formed in one side, close to the fixing pin 23, of the swing plate 14, and a swing plate screw 25 for mounting the swing plate 14 on the sewing machine shell in a hinged mode is arranged on the hinge hole 24. Therefore, the swing plate forms a lever structure taking the swing plate screw as a hinge fulcrum, and the swing plate can be driven to move relative to the swing plate screw in the process that the needle bar binding head moves along with the axial direction of the needle bar. The hinge hole 24 is provided at the lower end of the swing plate 14, a hinge plate 26 is provided at the lower side of the swing plate 14 near the lower end and protrudes downward, and the fixing pin 23 is provided on the hinge plate 26.
The specific implementation process of the embodiment is as follows: when the sewing machine normally works, the needle rod binding head is driven to reciprocate up and down through the main shaft, so that the swing plate is driven to swing, the fixed pin on the swing plate drives the swing pin to swing, and then the swing pin drives the swing shaft to swing, so that the swing of the feeding needle is finally realized. In this embodiment, can feed an oval groove of needle swing stroke in the design of aircraft nose left side lid, when needs are adjusted, only need take off the oil blanket of outside and can use the spanner to adjust, of course, also can directly pull down aircraft nose left side lid is whole, adjusts, this can select according to the regulation demand of reality.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (8)
1. The utility model provides a structure is adjusted to needle of feeding of sewing machine, is including installing swing axle (10) in the sewing machine aircraft nose and installing in needle (11) are fed to swing axle (10) lower extreme, its characterized in that: the upper end of the swinging shaft (10) is adjustably arranged on a swinging crank (12), the swinging crank (12) is connected with the lower end part of a swinging plate (14) through a swinging crank pin (13), and the upper end part of the swinging plate (14) is hinged with a needle bar binding head (15) of the sewing machine; the structure of the swing crank (12) is as follows: the device comprises a swinging plate (18) for installing and fixing the upper end part of a swinging shaft (10), wherein a crank pin sleeve (19) for sleeving a swinging crank pin (13) is arranged on one side of the swinging plate (18) facing to a swinging plate (14); the swing plate (18) is provided with a strip-shaped adjusting hole (20), the upper end part of the swing shaft (10) penetrates through the adjusting hole (20) and extends to the upper side of the swing plate (18), and the upper end part of the swing shaft (10) extending to the upper side of the swing plate (18) is screwed with an adjusting nut (21).
2. The needle feeding adjustment structure of a sewing machine according to claim 1, characterized in that: one end of the needle bar binding head (15) is provided with a slide block which can slide up and down in a slide block guide seat (16) of the sewing machine, the needle bar binding head (15) is hinged with the lower end of a needle bar connecting rod (17), and a swinging plate (14) is arranged on the needle bar binding head (15) between the needle bar connecting rod (17) and the slide block.
3. The needle feeding adjustment structure of a sewing machine according to claim 1, characterized in that: the side wall of the crank pin sleeve (19) towards one side of the swing plate (14) is provided with a through hole (22), and a fixing pin (23) which penetrates through the through hole (22) and is fixedly connected with a swing crank pin (13) in the crank pin sleeve (19) is arranged at a position on the swing plate (14) corresponding to the through hole (22).
4. The needle feeding adjustment structure of a sewing machine according to claim 3, characterized in that: one side of the swing plate (14) close to the fixing pin (23) is provided with a hinge hole (24), and a swing plate screw (25) for mounting the swing plate (14) on the sewing machine shell in a hinged mode is arranged on the hinge hole (24).
5. The needle feeding adjustment structure of a sewing machine according to claim 4, characterized in that: the hinge hole (24) is arranged at the lower end part of the swing plate (14), a hinge plate (26) is arranged on one side, close to the lower end part, of the lower side edge of the swing plate (14) in a downward protruding mode, and the fixing pin (23) is arranged on the hinge plate (26).
6. The needle feeding adjustment structure of a sewing machine according to any one of claims 1 to 5, characterized in that: a strip-shaped movable hole (27) is arranged at the position, close to the upper end part, of the swinging plate (14), and the needle rod tying head (15) penetrates through the movable hole (27).
7. The needle feeding adjustment structure of a sewing machine according to any one of claims 1 to 5, characterized in that: a swing shaft sleeve (28) is sleeved on a swing shaft (10) on the lower side of the swing crank (12), a needle feeding frame (29) is installed on the swing shaft (10) on the lower side of the swing shaft sleeve (28), and a feeding needle (11) is installed at the lower end of the needle feeding frame (29).
8. The needle feeding adjustment structure of a sewing machine according to claim 7, characterized in that: an upper opening hole (30) is formed in the upper end portion of the needle feeding frame (29), upper clamping seats (31) which are clamped through screws in a spiral mode are arranged on two sides of an opening of the upper opening hole (30) respectively, and the lower end portion of the swinging shaft (10) extends into the upper opening hole (30) and is fixed through screws in clamping the upper clamping seats (31) on two sides of the opening of the upper opening hole (30); the lower end part of the needle feeding frame (29) is provided with a lower opening hole (32), the two sides of the opening of the lower opening hole (32) are respectively provided with a lower clamping seat (33) which is clamped by a screw, and the upper end part of the needle feeding frame (11) extends into the lower opening hole (32) and is fixed by the lower clamping seats (33) which are clamped by the screw and are arranged at the two sides of the opening of the lower opening hole (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710517680.8A CN107237058B (en) | 2017-06-29 | 2017-06-29 | Needle feeding adjusting structure of sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710517680.8A CN107237058B (en) | 2017-06-29 | 2017-06-29 | Needle feeding adjusting structure of sewing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107237058A CN107237058A (en) | 2017-10-10 |
| CN107237058B true CN107237058B (en) | 2020-03-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710517680.8A Active CN107237058B (en) | 2017-06-29 | 2017-06-29 | Needle feeding adjusting structure of sewing machine |
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| CN (1) | CN107237058B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108103678B (en) * | 2018-01-16 | 2020-06-05 | 杰克缝纫机股份有限公司 | Sewing machine take-up mechanism and sewing machine |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2537722Y (en) * | 2002-02-08 | 2003-02-26 | 标准缝纫机菀坪机械有限公司 | Sewing machine reversible sewing needle distance adjustable mechanism |
| JP2005334234A (en) * | 2004-05-26 | 2005-12-08 | Pegasus Sewing Mach Mfg Co Ltd | Cylinder type valance stitch sewing machine |
| CN201512669U (en) * | 2009-09-14 | 2010-06-23 | 名匠缝纫机股份有限公司 | Thread guide structure arranged outside sewing machine for forming ornamental threads with alternately changed thread density on front surface of stitched fabric |
| JP2011212286A (en) * | 2010-03-31 | 2011-10-27 | Pegasus Sewing Machine Mfg Co Ltd | Spreader attaching mechanism |
| CN106637729B (en) * | 2016-12-28 | 2020-02-07 | 杰克缝纫机股份有限公司 | Sewing machine and mechanism for reducing vibration of sewing machine |
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- 2017-06-29 CN CN201710517680.8A patent/CN107237058B/en active Active
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| CN107237058A (en) | 2017-10-10 |
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Address after: 318000 no.1008, east section of Donghai Avenue, Sanjia, Jiaojiang District, Taizhou City, Zhejiang Province Patentee after: Jack Technology Co.,Ltd. Address before: 318010 No. 15 Airport South Road, Jiaojiang District, Zhejiang, Taizhou Patentee before: JACK SEWING MACHINE Co.,Ltd. |
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