CN112626723B - Lower supply mechanism and lockstitch sewing machine thereof - Google Patents
Lower supply mechanism and lockstitch sewing machine thereof Download PDFInfo
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- CN112626723B CN112626723B CN201910904933.6A CN201910904933A CN112626723B CN 112626723 B CN112626723 B CN 112626723B CN 201910904933 A CN201910904933 A CN 201910904933A CN 112626723 B CN112626723 B CN 112626723B
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- lifting
- connecting rod
- tooth
- feed
- driving
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B27/00—Work-feeding means
- D05B27/24—Feed-dog lifting and lowering devices
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B29/00—Pressers; Presser feet
- D05B29/02—Presser-control devices
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- Sewing Machines And Sewing (AREA)
Abstract
The invention claims a lower supply mechanism and a lockstitch sewing machine thereof, wherein the lower supply mechanism comprises a feed lifting shaft, a rear lever, a presser foot and a presser foot lifting assembly; one end of the feed lifting shaft is provided with a feed lifting fork, the other end of the feed lifting shaft is provided with a feed lifting crank, and the rear lever drives the presser foot lifting assembly to realize the up-and-down motion of the presser foot; the lower supply mechanism further comprises a lower lifting tooth connecting rod, a driving structure and a driving piece, one end of the lower lifting tooth connecting rod is rotatably connected with the lifting tooth crank, and the other end of the lower lifting pressing connecting rod is connected with the driving piece/the rear lever through the driving structure; the driving piece/the rear lever can drive the driving structure to drive the lower tooth lifting connecting rod to move downwards. The invention can utilize the driving piece to realize the lifting of the presser foot and simultaneously drive the feed dog to move downwards through the lower feed dog connecting rod until the top of the feed dog is not positioned on the lower plane of the needle plate, thereby facilitating the placement of the cloth and the placement of the cloth.
Description
Technical Field
The invention belongs to the technical field of sewing, and particularly relates to a lower supply mechanism and a lockstitch sewing machine thereof.
Background
When the flat sewing machine is used for sewing, the tooth part on the cloth feeding tooth extends to the position above the plane of the needle plate, and the cloth pressed by the presser foot is pushed to feed in the sewing advancing direction. The needle on the flat sewing machine can only move up and down for material needling, and cannot feed along with the feed dog, so that when the feed dog exposes the tooth part on the needle plate surface for feeding, the needle needs to be ensured to be away from the cloth and positioned above, and when the needle pierces the cloth, the tooth part of the feed dog is positioned below the needle plate and cannot feed, so that the cloth and the needle are prevented from moving and interfering. In combination with the above characteristics, when people use a flat sewing machine to place cloth, in order to facilitate the placing of the cloth, the needle needs to be stopped above (i.e. a common upper needle stop position), and at this time, if the tooth part of the feed dog is located above the needle plate, the placing of the cloth is obstructed.
However, there is no corresponding structure on the existing flat sewing machine, when placing cloth, the needle is stopped above, the presser foot is lifted, and the feed dog is driven to make the tooth part of the feed dog under the needle plate. The tooth part of the feed dog above the needle plate can block the cloth, so that the cloth is not convenient to place.
Disclosure of Invention
In view of the above, it is necessary to provide a mechanism for realizing downward feeding by using a presser foot lift and a lockstitch sewing machine thereof, which solve the technical problems in the prior art.
The lower supply mechanism comprises a feed lifting shaft, a rear lever, a presser foot and a presser foot lifting assembly; one end of the feed lifting shaft is provided with a feed lifting fork, and the other end of the feed lifting shaft is provided with a feed lifting crank, wherein the feed lifting fork is connected with a feed delivery tooth through a tooth frame; the rear lever drives the presser foot lifting assembly to realize the up-and-down motion of the presser foot; the lifting mechanism comprises a lifting tooth crank, a lower lifting tooth connecting rod, a driving structure and a driving piece, wherein one end of the lower lifting tooth connecting rod is rotatably connected with the lifting tooth crank, and the other end of the lower lifting tooth connecting rod is connected with the driving piece/the rear lever through the driving structure; the driving piece/the rear lever can drive the driving structure to drive the lower tooth lifting connecting rod to move downwards.
As a preferable scheme of the invention, the feed lifting mechanism further comprises an upper lifting tooth connecting rod, wherein one end of the upper lifting tooth connecting rod is connected with the lifting tooth crank in a sliding manner, and the other end of the upper lifting tooth connecting rod is connected with the feeding eccentric wheel; the upper feed lifting tooth connecting rod is provided with a sliding groove at one end connected with the feed lifting tooth crank, the feed lifting tooth crank is rotatably connected with the lower feed lifting tooth connecting rod through a shaft position screw, and the sliding groove on the upper feed lifting tooth connecting rod is clamped on the shaft position screw.
As a preferable scheme of the present invention, an inclined sliding groove is formed in the lower lifting tooth connecting rod, a limiting member is arranged on the upper lifting tooth connecting rod, and the lower lifting tooth connecting rod and the upper lifting tooth connecting rod are slidably connected by the cooperation between the inclined sliding groove and the limiting member.
As a preferable scheme of the present invention, the driving structure comprises a driving lever, and a connecting rod connected to the driving lever; the other end of the driving lever is fixedly connected with the lower tooth lifting connecting rod through a connecting piece, and the driving piece can drive the connecting rod through the rear lever and drive the lower tooth lifting connecting rod to move downwards relative to the upper tooth lifting connecting rod along the direction of the inclined sliding groove through the driving lever.
As a preferable aspect of the present invention, an elastic restoring member is connected between the lower lifting tooth connecting rod and the upper lifting tooth connecting rod, and the elastic restoring member can drive the lower lifting tooth connecting rod to restore relative to the upper lifting tooth connecting rod.
As a preferable scheme of the present invention, the elastic reset member is provided as two tension springs, and the two tension springs are arranged in a staggered manner.
In a preferred embodiment of the present invention, the driving member is an electromagnet assembly, and a moving portion of the electromagnet assembly is capable of lifting the presser foot while driving the rear lever to move.
As a preferable aspect of the present invention, the link is fixedly connected to the moving portion of the electromagnet assembly/the rear lever at an end away from the driving lever.
In a preferred embodiment of the present invention, the driving member is a knee ejector, and the knee ejector drives the rear lever to move and simultaneously lifts the presser foot.
As a preferable scheme of the invention, the presser foot lifting assembly comprises a pressure lever, a pressure lever guide frame, a lifting plate, a front lever and a pull rod, wherein the rear lever is connected with the pull rod, and a spring is arranged at one end of the pressure lever far away from the presser foot.
The invention also provides a flat sewing machine, which comprises a shell and a lower supply mechanism arranged in the shell, wherein the lower supply mechanism is any one of the lower supply mechanisms.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
the lower supply mechanism and the flat sewing machine thereof provided by the invention can utilize the driving piece to lift the presser foot and simultaneously drive the feed dog to move downwards through the lower feed dog connecting rod to the position that the top of the feed dog is not positioned on the lower plane of the needle plate through the reasonable structural arrangement, thereby facilitating the placement of cloth.
Drawings
Fig. 1 is a schematic structural diagram of a lower supply mechanism according to a first embodiment of the present invention.
Fig. 2 is a schematic structural diagram of another view angle of the lower supply mechanism according to the first embodiment of the present invention.
Fig. 3 is a schematic structural view of a part of the lower supply mechanism of fig. 1.
Fig. 4 is a schematic structural view of another part of the lower supply mechanism of fig. 1.
Fig. 5 is a schematic structural view of an upper tooth lifting link in the lower feed mechanism of fig. 1.
Fig. 6 is a schematic structural view of a lower feed lifting link in the lower feed mechanism of fig. 1.
10, a feed lifting shaft; 11. a feed lifting fork; 12. a feed lifting crank; 13. a dental articulator; 20. an upper feed lifting tooth connecting rod; 21. a chute; 30. a lower feed lifting tooth connecting rod; 31. an inclined chute; 41. a drive lever; 42. a connecting rod; 43. a connecting shaft; 100. a feed dog; 101. a feeding eccentric wheel; 102. an axial screw; 110. a limiting member; 120. a connecting member; 200. a needle plate; 201. a presser foot; 202. a pressure lever; 203. a compression bar guide frame; 204. a lifting plate; 205. a front lever; 206. a pull rod; 207. a rear lever; 208. a spring; 230. a tension spring; 231. a fixing pin; 300. an electromagnet assembly; 301. a moving part.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
Referring to fig. 1 to 6, the flat bed sewing machine claimed in the present invention includes a housing (not shown), and a lower supply mechanism disposed in the housing, the lower supply mechanism being used for driving the feed dog 100 to separate from the needle plate 200, so as to facilitate the placement of the cloth during the sewing operation of the flat bed sewing machine. In the present embodiment, the operation of separating the feed dog 100 from the needle plate 200 means that the tooth portion of the feed dog 100 is lowered below the needle plate 200, and the feed dog 100 is raised during the normal sewing operation of the lockstitch sewing machine, so that the normal sewing operation of the lockstitch sewing machine is not affected, and the operation of lowering the feed dog 100 below the needle plate 200 is referred to as "feed dog lower feed".
It can be understood that the flat sewing machine needs to be actuated by the feed dog when in normal sewing operation, the flat sewing machine of the embodiment can realize the two actions by the feed dog and the feed dog, and the flat sewing machine can simplify the structure of the flat sewing machine and improve the working stability of the flat sewing machine.
Specifically, the structure for supplying the feed dog 100 downward on the lockstitch sewing machine of the embodiment includes a feed dog shaft 10, a feed dog fork 11 and a feed dog crank 12 which are arranged at both ends of the feed dog shaft 10, a feed rack 13 which is respectively connected to the feed dog fork 11 and the feed dog 100, an upper feed dog connecting rod 20 and a lower feed dog connecting rod 30 which are arranged on the feed dog crank 12, a presser foot 201, a presser foot lifting assembly, a rear lever 207, a driving structure and a driving member. The presser foot lifting assembly on the lockstitch sewing machine of the embodiment comprises a pressure lever 202, a pressure lever guide frame 203, a lifting plate 204, a front lever 205 and a pull rod 206 which are connected in sequence; the other end of the pressure lever 202 is fixedly connected with the presser foot 200, wherein a spring 208 is arranged between one side of the pressure lever 202 far away from the presser foot 201 and the shell, and the spring 208 can press the pressure lever 202 downwards to drive the presser foot 200 to be pressed against the needle plate 200.
The feed dog crank 12 and the feed dog fork 11 are circumferentially limited with the feed dog shaft 10, the feed dog crank 12 can drive the feed dog shaft 10 to rotate, and the feed dog 100 is driven to move downwards under the transmission of the feed dog fork 11 and the feed dog frame 13 until the top of the feed dog 100 is not on the lower plane of the needle plate 200, so that the feed dog 100 is driven downwards.
In the present embodiment, one end of the upper feed dog connecting rod 20 is slidably connected to the feed dog crank 12, and the other end is connected to the feeding eccentric wheel 101, so that when the flat sewing machine of the present embodiment is in sewing operation, the rotation of the feeding eccentric wheel 101 can drive the upper feed dog connecting rod 20 to swing down the feed dog crank 12, thereby realizing that the feed dog 100 cooperates with the needle plate 200 to feed the cloth placed on the needle plate 200 in the sewing advancing direction. The lower feed lifting teeth connecting rod 30 is rotatably connected with the feed lifting teeth crank 12, and the other end of the lower feed lifting teeth connecting rod 30 is connected with the driving piece/the rear lever 207 through the driving structure; the driving member/the rear lever can drive the driving structure to drive the lower feed lifting teeth connecting rod 30 to move downwards, so that the feed lifting teeth crank 12 is driven to rotate. That is, the driving structure of the present embodiment can realize the downward feed driving of the feed dog 100 by the downward movement driving of the lower feed dog link 30.
Specifically, the feed lifting rock crank 12 and the lower feed lifting rock connecting rod 30 are rotatably connected by a shaft screw 102, and the shaft screw 102 can be arranged to penetrate through the lower feed lifting rock connecting rod 30 and the feed lifting rock crank 12; the upper feed dog connecting rod 20 is provided with a sliding groove 21 at one end connected with the feed dog crank 12, and the sliding groove 21 on the upper feed dog connecting rod 20 is correspondingly clamped on the shaft position screw 102, so that the sliding connection between the upper feed dog connecting rod 20 and the feed dog crank 12 is realized.
The lower feed dog connecting rod 30 is provided with an inclined sliding groove 31, the inclined sliding groove 31 is obliquely and upwardly arranged relative to the lower feed dog connecting rod 30, the upper feed dog connecting rod 20 is provided with a limiting piece 110, and the lower feed dog connecting rod 30 and the upper feed dog connecting rod 20 are in sliding connection through the cooperation between the inclined sliding groove 31 and the limiting piece 110. When the lower feed dog link 30 moves downwards under the driving of the driving structure, the lower feed dog link 30 can move along the inclined slide groove 31 under the guidance of the limiting member 110, so that the lower feed dog link 30 can drive the feed dog crank 12 to rotate downwards. The stopper 110 is a shaft screw fixed to the upper feed dog link 20, or the stopper 110 is a boss portion on the upper feed dog link 20.
In the present embodiment, the driving structure includes a driving lever 41, and a link 42 connected to the driving lever 41. The driving lever 41 is rotatably connected to the housing, and may be fixed to the housing by a connecting shaft 43 penetrating the driving lever 41, and the connecting rod 42 is fixedly connected to the driving member/the rear lever 204 at an end away from the driving lever 41. And the driving lever 41 is driven by the connecting rod 42 to rotate around a connecting fulcrum between the driving lever 41 and the housing, wherein the other end of the driving lever 41 is fixedly connected with the lower tooth lifting connecting rod 30 through a connecting piece 120, so that the driving piece can drive the lower tooth lifting connecting rod 30 to move downwards relative to the upper tooth lifting connecting rod 20 along the direction of the inclined sliding chute 31 through the connecting rod 42 and the driving lever 41. That is, in the present embodiment, the driving unit is used as a power source, and the downward movement of the lower feed dog link 30 is realized by the transmission between the link 42 and the driving lever 41. Wherein the connector 120 is provided as a shaft screw.
In this embodiment, the driving member is an electromagnet assembly 300, and a moving portion 301 of the electromagnet assembly 300 is connected to the other end of the rear lever 207, wherein the rear lever 207 is rotatably disposed on the housing, and the moving portion 301 of the electromagnet assembly 300 can drive the rear lever 207 to rotate around a connecting fulcrum where the rear lever 207 is connected to the housing, that is, when the moving portion 301 of the electromagnet assembly 300 drives the rear lever 207 to ascend, the rear lever 207 can pull down the pull rod 206, and the pressure rod 202 is driven by the transmission of the front lever 205, the lifting plate 204 and the pressure rod guide 203 to compress the spring 208 to ascend, so as to actuate the tooth lifting foot. It should be noted that the moving portion 301 of the electromagnet assembly 300 is a movable iron core of the electromagnet assembly 300 or a joint connected to the movable iron core, but the driving member of the present embodiment is not limited to the electromagnet assembly 300, and those skilled in the art may set the driving member to be another structure such as an air cylinder according to the use requirement, and when the driving member is the air cylinder, a spring for returning may be omitted, or the driving member may be a knee ejector that drives the rear lever 207 to move and can lift the presser foot.
The connecting rod 42 is fixed to the rear lever 207 at an end away from the driving lever 41, and specifically, a connecting node of the connecting rod 42 and the rear lever 207 is located at two ends of the rear lever 207, and the connecting node of the connecting rod 42 and the rear lever 207 and the connecting rod 206 is located at two ends of the rear lever 207, so that when the moving portion 301 of the electromagnet assembly 300 is lifted, on one hand, the rear lever 207 can drive the pull rod 206 to descend, and on the other hand, the rear lever 207 can drive the connecting rod 42 to ascend, thereby realizing two actions of the tooth lifting foot and the tooth feeding by using one power source for the lower feeding mechanism. It should be noted that, a person skilled in the art may set the two power sources to be two, the two power sources respectively perform the feed-up foot and the feed-down supply control, and the two power sources are connected by signals, and when the electromagnet assembly 300 controls the feed-up foot, the other power source simultaneously controls the feed-down supply of the feed dog 100.
It is understood that the end of the connecting rod 42 away from the driving lever 41 is not limited to being fixedly connected to the rear lever 207, and those skilled in the art can directly fix the end of the connecting rod 42 away from the driving lever 41 to the moving portion 301 of the electromagnet assembly 300, or directly fix the connecting rod 42 to the pull rod 206, the front lever 205, the lifting plate 204, the press rod guide 203, or the press rod 202 according to the use requirement as long as the lifting driving of the connecting rod 42 is ensured.
In the present embodiment, an elastic restoring member is connected between the lower tooth lift link 30 and the upper tooth lift link 20, and the elastic restoring member can drive the lower tooth lift link 30 and the upper tooth lift link 20 to be restored.
Specifically, the elastic reset member is provided as two tension springs 230, the number of the tension springs 230 is two, the two tension springs 230 are arranged in a staggered manner, and the positions of the two tension springs 230 can be specifically set according to the reset requirement when the lower tooth lifting link 30 moves relative to the upper tooth lifting link 20, which is not described herein. In the present embodiment, a fixing pin 231 is provided on each of the lower tooth lift link 30 and the upper tooth lift link 20 to facilitate the assembly of the tension spring 230 between the lower tooth lift link 30 and the upper tooth lift link 20.
As can be seen from the above, when the fabric is laid on the lockstitch sewing machine of the present embodiment, the electromagnet assembly 300 operates to drive the rear lever 207 to rotate on the housing, and on one hand, the rear lever 207 can drive the pressing rod 202 to compress the spring 208 to ascend under the transmission of the pull rod 206, the front lever 205, the lifting plate 204 and the pressing rod guide frame 203, and drive the pressing foot 201 to ascend, so as to implement the actuation of the tooth lifting foot; the rear lever 207 can drive the lower feed dog connecting rod 30 to move downwards along the direction of the inclined chute 31 under the transmission of the connecting rod 42 and the driving lever 41, so as to drive the feed dog 100 to be separated from the needle plate 200, and thus, the feed dog lower supply action is realized; when the lockstitch sewing machine is in normal sewing operation, the electromagnet assembly 300 is powered off, the pressure lever 202 is reset under the action of the spring 208, the presser foot 201 descends, the lower feed lifting tooth connecting rod 30 is reset under the action of the two tension springs 230, and the feed dog 100 ascends.
In summary, the lower supply mechanism and the lockstitch sewing machine thereof provided by the invention can utilize the driving piece to realize the lifting of the presser foot and simultaneously drive the feed dog to move downwards through the lower feed dog connecting rod to the position that the top of the feed dog is not on the lower plane of the needle plate through the reasonable structural arrangement, thereby facilitating the placement of cloth; meanwhile, the lower supply mechanism is improved on the basis of the original structure, the linkage of the lower supply of the feed dog and the feed dog can be realized, the structure is simple and reliable, and the use requirement of the flat sewing machine is further met.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express a few embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (8)
1. A lower supply mechanism comprises a feed lifting shaft, a rear lever, a presser foot and a presser foot lifting assembly; one end of the feed lifting shaft is provided with a feed lifting fork, and the other end of the feed lifting shaft is provided with a feed lifting crank, wherein the feed lifting fork is connected with a feed delivery tooth through a tooth frame; the rear lever drives the presser foot lifting assembly to realize the up-and-down motion of the presser foot; the method is characterized in that: the lifting mechanism comprises a rear lever, a lower lifting tooth connecting rod, a driving structure and a driving piece, wherein one end of the lower lifting tooth connecting rod is rotatably connected with the lifting tooth crank, and the other end of the lower lifting tooth connecting rod is connected with the rear lever through the driving structure; the rear lever can drive the driving structure to drive the lower tooth lifting connecting rod to move downwards;
the feed lifting mechanism is characterized by also comprising an upper lifting tooth connecting rod, wherein one end of the upper lifting tooth connecting rod is connected with the lifting tooth crank in a sliding manner, and the other end of the upper lifting tooth connecting rod is connected with the feeding eccentric wheel; the upper feed lifting tooth connecting rod is provided with a sliding groove at one end connected with the feed lifting tooth crank, the feed lifting tooth crank is rotationally connected with the lower feed lifting tooth connecting rod through a shaft position screw, and the sliding groove on the upper feed lifting tooth connecting rod is clamped on the shaft position screw; the lower lifting tooth connecting rod is provided with an inclined sliding groove, the upper lifting tooth connecting rod is provided with a limiting piece, and the lower lifting tooth connecting rod and the upper lifting tooth connecting rod are in sliding connection through the matching of the inclined sliding groove and the limiting piece;
the driving structure comprises a driving lever and a connecting rod connected with the driving lever; the other end of the driving lever is fixedly connected with the lower tooth lifting connecting rod through a connecting piece, and the driving piece can drive the connecting rod through the rear lever and drive the lower tooth lifting connecting rod to move downwards relative to the upper tooth lifting connecting rod along the direction of the inclined sliding groove through the driving lever.
2. The bottom feed mechanism according to claim 1, wherein: an elastic reset piece is connected between the lower tooth lifting connecting rod and the upper tooth lifting connecting rod, and the elastic reset piece can drive the lower tooth lifting connecting rod to reset relative to the upper tooth lifting connecting rod.
3. The under-feed mechanism according to claim 2, wherein: elasticity resets and establishes into the extension spring, the quantity of extension spring is two, two the extension spring dislocation set.
4. The under feed mechanism according to any one of claims 1 to 3, wherein: the driving piece is an electromagnet assembly, and a moving part of the electromagnet assembly can lift the presser foot while driving the rear lever to move.
5. The under-feed mechanism according to claim 4, wherein: and one end of the connecting rod, which is far away from the driving lever, is fixedly connected with the moving part/the rear lever of the electromagnet assembly.
6. The lower supply mechanism according to any one of claims 1 to 3, wherein the driving member is a knee ejector, and the knee ejector moves the rear lever and can lift the presser foot.
7. The under feed mechanism according to any one of claims 1 to 3, wherein: the presser foot lifting assembly comprises a pressing rod, a pressing rod guide frame, a lifting plate, a front lever and a pull rod, the rear lever is connected with the pull rod, and a spring is arranged at one end, far away from the presser foot, of the pressing rod.
8. A lockstitch sewing machine is characterized in that: the device comprises a shell and a lower supply mechanism arranged in the shell, wherein the lower supply mechanism is as claimed in any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910904933.6A CN112626723B (en) | 2019-09-24 | 2019-09-24 | Lower supply mechanism and lockstitch sewing machine thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910904933.6A CN112626723B (en) | 2019-09-24 | 2019-09-24 | Lower supply mechanism and lockstitch sewing machine thereof |
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| CN112626723A CN112626723A (en) | 2021-04-09 |
| CN112626723B true CN112626723B (en) | 2022-04-26 |
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| CN201910904933.6A Active CN112626723B (en) | 2019-09-24 | 2019-09-24 | Lower supply mechanism and lockstitch sewing machine thereof |
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| CN103696166A (en) * | 2012-09-27 | 2014-04-02 | 兄弟工业株式会社 | Sewing machine |
| CN105002663A (en) * | 2015-08-20 | 2015-10-28 | 浙江中捷缝纫科技有限公司 | Lockstitch sewing machine |
| DE102017107281A1 (en) * | 2016-04-05 | 2017-10-05 | Juki Corporation | sewing machine |
| CN108998899A (en) * | 2018-08-16 | 2018-12-14 | 杰克缝纫机股份有限公司 | A kind of cloth feeding mechanism of automatic improvement take-up |
| CN109989186A (en) * | 2019-04-23 | 2019-07-09 | 杰克缝纫机股份有限公司 | Compound adjusting method |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000279671A (en) * | 1999-03-30 | 2000-10-10 | Juki Corp | Presser foot of sewing machine |
| US6499415B1 (en) * | 2000-05-05 | 2002-12-31 | Sailrite Enterprises, Inc. | Zigzag sewing machine |
| JP2006280764A (en) * | 2005-04-04 | 2006-10-19 | Juki Corp | Top feed device for sewing machine |
| CN106988030B (en) * | 2017-06-01 | 2019-07-09 | 杰克缝纫机股份有限公司 | It is a kind of by foot lifting mechanism control feeding mechanism move down structure and sewing machine |
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2019
- 2019-09-24 CN CN201910904933.6A patent/CN112626723B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103696166A (en) * | 2012-09-27 | 2014-04-02 | 兄弟工业株式会社 | Sewing machine |
| CN105002663A (en) * | 2015-08-20 | 2015-10-28 | 浙江中捷缝纫科技有限公司 | Lockstitch sewing machine |
| DE102017107281A1 (en) * | 2016-04-05 | 2017-10-05 | Juki Corporation | sewing machine |
| CN108998899A (en) * | 2018-08-16 | 2018-12-14 | 杰克缝纫机股份有限公司 | A kind of cloth feeding mechanism of automatic improvement take-up |
| CN109989186A (en) * | 2019-04-23 | 2019-07-09 | 杰克缝纫机股份有限公司 | Compound adjusting method |
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Address after: 318000 no.1008, east section of Donghai Avenue, Sanjia, Jiaojiang District, Taizhou City, Zhejiang Province Applicant after: Jack Technology Co.,Ltd. Address before: 318000 no.1008, east section of Donghai Avenue, Sanjia, Jiaojiang District, Taizhou City, Zhejiang Province Applicant before: JACK SEWING MACHINE Co.,Ltd. |
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