CN108385288B - Sewing machine and cloth feeding mechanism thereof - Google Patents
Sewing machine and cloth feeding mechanism thereof Download PDFInfo
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- CN108385288B CN108385288B CN201810488285.6A CN201810488285A CN108385288B CN 108385288 B CN108385288 B CN 108385288B CN 201810488285 A CN201810488285 A CN 201810488285A CN 108385288 B CN108385288 B CN 108385288B
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- cloth feeding
- connecting rod
- rod
- cloth
- swing
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B27/00—Work-feeding means
- D05B27/02—Work-feeding means with feed dogs having horizontal and vertical movements
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- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The application discloses sewing machine's work feed mechanism, including work feed tooth frame and bent axle subassembly, still including set firmly in work feed tooth frame's side, be used for the work feed connecting rod that links to each other with differential adjustment mechanism to and both ends pass respectively work feed connecting rod with bent axle subassembly's work feed pendulum rod. By applying the cloth feeding mechanism, one end of the cloth feeding connecting rod is fixedly arranged on the side surface of the cloth feeding tooth frame, and the other end of the cloth feeding connecting rod is used for the cloth feeding oscillating bar to penetrate through, so that the cloth feeding tooth frame is connected with the cloth feeding oscillating bar to replace an original sliding groove and sliding block mechanism, the problems of clamping stagnation and the like caused by the movement of a sliding block relative to a sliding groove are solved, the action of the cloth feeding tooth frame is more stable, and therefore, the work reliability of the cloth feeding mechanism provided by the application is higher. The application also discloses a sewing machine, and the work efficiency is higher.
Description
Technical Field
The invention relates to the technical field of textile equipment, in particular to a cloth feeding mechanism of a sewing machine. The invention also relates to a sewing machine.
Background
The existing sewing machine has the working principle that a needle rod drives a lead to penetrate through a curved needle which is arranged at the bottom of a textile and is penetrated with a winding under the driving of a driving device, so that the lead and the winding are interwoven together to realize sewing. In view of the special working principle of the existing sewing machine, the sewing machine has the advantages of high sewing speed, good sewing quality, convenient operation and the like, is popular with people, and is widely applied to the fields of clothing, home furnishing and the like.
The existing sewing machine generally comprises a needle bar material-needling and thread-jumping mechanism, a differential adjusting mechanism, a cloth feeding mechanism, a looper thread-hooking mechanism and the like. Wherein, the feed dog in the feed mechanism conveys the sewing material to the required position through the lifting motion and the cooperation of the differential adjusting mechanism.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a conventional cloth feeding mechanism. As shown in fig. 1, the conventional cloth feeding mechanism includes a cloth feeding gripper 01 and a cloth feeding swing rod 02, wherein a sliding member is disposed between opposing surfaces of the cloth feeding gripper 01 and the cloth feeding swing rod 02, and specifically, the sliding member includes a slider 03 hinged to a corresponding side surface of the cloth feeding gripper 01 and used for driving the cloth feeding gripper 01 to move, and a chute 04 fixed to the corresponding side surface of the cloth feeding swing rod 02 and used for guiding the slider 03 to move. Obviously, the power transmission of the existing cloth feeding mechanism is realized by means of the sliding block 03 and the sliding groove 04, in actual work, when the sliding block 03 moves relative to the sliding groove 04, severe friction exists between the sliding block 03 and the sliding groove 04, which may cause the sliding block 03 to be stuck, and seriously affect the stable operation of the cloth feeding mechanism, so that the work reliability of the cloth feeding mechanism of the existing sewing machine is poor.
Disclosure of Invention
In view of the above, the present invention is directed to a cloth feeding mechanism of a sewing machine, which has high operational reliability. Another object of the present invention is to provide a sewing machine which is high in working efficiency.
The specific scheme is as follows:
the application provides a sewing machine's work feed mechanism, including work feed tooth frame and bent axle subassembly, still include:
the cloth feeding connecting rod is fixedly arranged on the side surface of the cloth feeding tooth rack and is used for being connected with the differential adjusting mechanism;
two ends of the cloth feeding connecting rod respectively penetrate through the cloth feeding swing rod of the crankshaft component.
Preferably, the method further comprises the following steps:
a swing driving rod which passes through the cloth feeding connecting rod and is used for being connected with the differential adjusting mechanism.
Preferably, the method further comprises the following steps:
the first axial fastener is fixedly arranged on the cloth feeding connecting rod, abuts against one side of the cloth feeding swing rod close to the cloth feeding tooth frame and is used for limiting the axial movement of the cloth feeding swing rod;
and the second axial fastener is fixedly arranged on the cloth feeding connecting rod, abuts against one side of the swing driving rod, which is far away from the cloth feeding swing rod, and is used for limiting the axial movement of the swing driving rod.
Preferably, the method further comprises the following steps:
the cloth feeding guide block penetrates through the crankshaft assembly, is in contact with the lower part of the cloth feeding tooth rack and is used for guiding the movement of the cloth feeding tooth rack.
Preferably, the method further comprises the following steps:
the synchronous guide groove is arranged at one end of the cloth feeding tooth rack far away from the cloth feeding guide block;
the synchronous guide block is arranged in the synchronous guide groove and used for guiding the cloth feeding tooth rack to synchronously move along with the cloth feeding guide block.
Preferably, the crankshaft assembly includes:
a crankshaft for providing torque;
and the supporting shaft sleeve is arranged between the cloth feeding swing rod and the crankshaft and is used for supporting the cloth feeding swing rod.
The application also discloses a sewing machine, which comprises a differential adjusting mechanism and a cloth feeding mechanism connected with the differential adjusting mechanism.
Compared with the background art, the cloth feeding mechanism comprises a cloth feeding tooth frame, a crankshaft assembly, a cloth feeding connecting rod and a cloth feeding swing rod, wherein the cloth feeding connecting rod is fixedly arranged on the side face of the cloth feeding tooth frame and used for being connected with the differential adjusting mechanism, and two ends of the cloth feeding swing rod penetrate through the cloth feeding connecting rod and the crankshaft assembly respectively.
When the crankshaft assembly rotates, the cloth feeding swing rod connected with the crankshaft assembly swings along with the crankshaft assembly, so that the cloth feeding connecting rod connected with the cloth feeding swing rod is driven to swing, the cloth feeding connecting rod drives the cloth feeding tooth frame to move along with the cloth feeding connecting rod, and cloth feeding is achieved.
Obviously, the cloth feeding tooth frame is connected with the cloth feeding swing rod through the cloth feeding connecting rod, the cloth feeding swing rod penetrates through the cloth feeding connecting rod, the cloth feeding mechanism provided by the application replaces an original sliding block sliding groove mechanism through the cloth feeding connecting rod, namely, a rotating pair is used for replacing an existing moving pair, the problem of clamping stagnation possibly generated in the moving process of the sliding groove relative to the sliding block is solved, the stable operation of the cloth feeding tooth frame is guaranteed, and therefore the work reliability of the cloth feeding mechanism provided by the application is improved.
The sewing machine comprising a cloth feeding mechanism has the advantages that the invalid working time is shortened due to the improvement of the working reliability, and the working efficiency is improved accordingly.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic structural view of a conventional cloth feeding mechanism;
FIG. 2 is a schematic structural view of a cloth feeding mechanism according to an embodiment of the present application;
FIG. 3 is another view of FIG. 2;
FIG. 4 is a schematic view of the cloth feeding link of FIG. 2;
FIG. 5 is a schematic structural view of a cloth feeding swing rod in FIG. 2;
fig. 6 is a schematic structural view of the swing driving lever in fig. 2.
The reference numbers are as follows:
a cloth feeding tooth frame 01, a cloth feeding swing rod 02, a sliding block 03 and a sliding groove 04;
a cloth feeding tooth frame 1, a crankshaft component 2, a cloth feeding connecting rod 3, a cloth feeding swing rod 4 and a swing driving rod 5;
a feed dog 11;
a crankshaft 21 and a support sleeve 22;
a first axial fastener 61 and a second axial fastener 62;
a cloth feeding guide block 7;
a synchronization guide groove 81 and a synchronization guide block 82.
Detailed Description
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.
In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific examples.
Referring to fig. 2 and 3, fig. 2 is a schematic structural diagram of a cloth feeding mechanism according to an embodiment of the present application; fig. 3 is another view of fig. 2.
The embodiment of the invention discloses a cloth feeding mechanism of a sewing machine, which comprises a cloth feeding tooth frame 1, a crankshaft assembly 2, a cloth feeding connecting rod 3, a cloth feeding swing rod 4 and a swing driving rod 5.
The crankshaft assembly 2 vertically penetrates through the cloth feeding tooth frame 1, the cloth feeding tooth frame 1 is provided with a cloth feeding tooth 11, and the top of the cloth feeding tooth 11 is provided with a plurality of rows of teeth with certain inclination angles, so that the sewing materials are prevented from being scratched, the friction between the cloth feeding tooth 11 and the sewing materials is increased, and the sewing materials are stably conveyed.
The crank assembly 2 is connected to external driving means in order to transmit the torsion to the feed dog 1. In this particular embodiment, the crankshaft assembly 2 includes a crankshaft 21 and a support sleeve 22. The crankshaft 21 is provided with a plurality of eccentric shaft sections, wherein a section of the eccentric shaft section close to the cloth feeding tooth rack 1 is provided with a supporting shaft sleeve 22 for supporting the cloth feeding swing rod 4, naturally, the inner ring of the supporting shaft sleeve 22 is contacted with the eccentric shaft surface of the crankshaft 21, and the outer ring thereof is contacted with the inner wall of the supporting hole of the cloth feeding swing rod 4, so that when the supporting shaft sleeve 22 rotates along with the crankshaft 21, the supporting shaft sleeve 22 drives one end of the cloth feeding swing rod 4 to swing around the supporting shaft sleeve 22.
Referring to fig. 4, fig. 4 is a schematic structural view of the cloth feeding link rod in fig. 2.
The cloth feeding connecting rod 3 is fixedly arranged on the side surface of the cloth feeding tooth frame 1 and is connected with the differential adjusting mechanism. In the specific embodiment, the feeding cloth connecting rod 3 is a connecting pin shaft penetrating through the feeding cloth tooth frame 1, and correspondingly, the feeding cloth tooth frame 1 is provided with a through clamping hole in the thickness direction, and the head of the connecting pin shaft is conveniently clamped in the clamping hole of the feeding cloth tooth frame 1. In this embodiment, the catching hole in the feed dog holder 1 is located substantially in the middle of the feed dog holder 1, but the position of the catching hole is not limited thereto. The cloth feeding swing rod 4 and the swing driving rod 5 sequentially penetrate through the cloth feeding connecting rod 3 from the tail end of the cloth feeding connecting rod 3. Of course, the structure and fixing manner of the cloth feeding link 3 are not limited thereto.
Referring to fig. 5, fig. 5 is a schematic structural view of the cloth feeding swing rod in fig. 2.
Two ends of the cloth feeding swing rod 4 respectively penetrate through the cloth feeding connecting rod 3 and the crankshaft component 2 and are mainly used for transmitting torque to the cloth feeding connecting rod 3 so that the cloth feeding connecting rod 3 drives the cloth feeding tooth frame 1 to move. In this embodiment, the cloth feeding swing link 4 is a connecting plate having two ends respectively provided with a mounting hole, wherein the inner diameter of the mounting hole for the support boss 22 to pass through is larger than the inner diameter of the mounting hole for the cloth feeding link 3 to pass through, and the natural cloth feeding swing link 4 includes a large diameter end connected to the crank assembly 2 and a small diameter end connected to the cloth feeding link 3. When the cloth feeding oscillating bar 4 rotates around the supporting shaft sleeve 22, a crank is formed by a vertical connecting line between the central axis of the cloth feeding oscillating bar 4 and the central axis of the supporting shaft sleeve 22, so that a crank slider mechanism is formed between the cloth feeding oscillating bar 4 and the crank assembly 2, the cloth feeding oscillating bar 4 drives the cloth feeding connecting rod 3 to move, and the cloth feeding tooth rack 1 realizes a cloth feeding function.
Referring to fig. 6, fig. 6 is a schematic structural diagram of the swing driving rod in fig. 2.
The swing drive rod 5 passes through the cloth feeding connecting rod 3 and is mainly used for being connected with a differential adjusting mechanism. In this embodiment, one end of the swing drive lever 5 passes through the cloth feeding link 3 from the tail end of the cloth feeding link 3 and abuts against the small diameter end of the cloth feeding swing lever 4; the other end of the differential adjusting mechanism is hinged with the differential adjusting mechanism through a pin.
Correspondingly, the present application also comprises a first axial fastening 61 and a second axial fastening 62, which are fixedly arranged on the feed link 3, respectively. Wherein, the first axial fastener 61 is positioned between the feed dog frame 1 and the feed oscillating bar 4, and one side of the first axial fastener is abutted against the small-diameter end of the feed oscillating bar 4, and is mainly used for limiting the feed oscillating bar 4 to move towards the feed dog frame 1 along the axial direction of the feed connecting rod 3. The second axial fastener 62 is located at one end of the cloth feeding connecting rod 3 far away from the cloth feeding tooth rack 1, namely, at the tail end of the cloth feeding connecting rod 3, and abuts against the side surface of the swing driving rod 5, and is mainly used for limiting the cloth feeding oscillating rod 4 and the swing driving rod 5 to move towards the tail end of the cloth feeding connecting rod 3 along the axial direction of the cloth feeding connecting rod 3 respectively. In this particular embodiment, the first axial fastening element 61 is preferably a snap spring which snaps onto the outer circumferential surface of the feed link 3, and correspondingly, a snap groove for mounting the snap spring is provided on the corresponding outer circumferential surface of the feed link 3. The second axial fastening 62 is preferably attached to a coupling nut at the tail end of the feed link 3, which correspondingly is provided with a coupling thread at the tail end of the feed link 3. Of course, the types of the first and second axial fasteners 61 and 62 are not limited thereto, and the use of similar axial fasteners does not affect the purpose of the present application.
The application also comprises a feed guide block 7 passing through the crankshaft assembly 2. The feed guide block 7 is mainly used for guiding the motion of the feed dog carrier 1. In this particular embodiment, the feed dog 1 is provided with a square guide groove at its bottom for receiving the feed guide block 7, and accordingly the feed guide block 7 is also square in its outer contour. Of course, the outer contour of the feed guide block 7 may also be in the shape of an arc, a regular polygon or the like, and may be adjusted according to the movement track of the feed dog 11, and the guide groove at the bottom of the feed dog holder 1 is correspondingly adjusted accordingly.
Correspondingly, the application also comprises a synchronous guide groove 81 and a synchronous guide block 82, wherein the synchronous guide groove 81 is arranged at one end of the cloth feeding tooth rack 1 far away from the cloth feeding guide block 7, and is specifically a square synchronous guide groove. The synchronous guide block 82 is disposed in the synchronous guide groove 81, and is mainly used for guiding the feed dog carrier 1 to move synchronously with the feed guide block 7. In this particular embodiment, the synchronization guide block 82 is embodied as a square slider that mates with a square synchronization guide slot. Of course, the structure of the synchronization guide groove 81 and the synchronization guide block 82 is not limited thereto.
The work principle of the work feed mechanism that this application provided: starting the crankshaft assembly 2, the crankshaft 21 drives one end of the cloth feeding oscillating bar 4 to swing around the supporting shaft sleeve 22 through the supporting shaft sleeve 22, the other end of the cloth feeding oscillating bar 4 drives the cloth feeding connecting rod 3 to move, and the cloth feeding connecting rod 3 drives the cloth feeding tooth rack 1 to move, so that cloth feeding is realized.
In summary, the cloth feeding mechanism provided by the present application includes a cloth feeding rack 1, a crank assembly 2, a cloth feeding connecting rod 3 and a cloth feeding swing rod 4. Wherein, the one end of work feed connecting rod 3 sets firmly in the side of work feed dental articulator 1, and the other end supplies work feed pendulum rod 4 to pass to couple together work feed dental articulator 1 and work feed pendulum rod 4, in order to replace original spout slider mechanism, solved because of the jamming scheduling problem that produces when the slider moves for the spout, so that work feed dental articulator 1 moves more stably, consequently, the work reliability of the work feed mechanism that this application provided is higher.
This application should provide a sewing machine, including differential adjustment mechanism, still include as above cloth feeding mechanism, because of cloth feeding mechanism's job stabilization nature improves to some extent, and is natural, and invalid operating time just reduces to some extent, consequently, its work efficiency is higher.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The sewing machine and the cloth feeding mechanism thereof provided by the invention are described in detail, the principle and the implementation mode of the invention are explained by applying specific examples, and the description of the examples is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (6)
1. The utility model provides a sewing machine's work feed mechanism, includes work feed dental articulator (1) and bent axle subassembly (2), its characterized in that still includes:
a cloth feeding connecting rod (3) fixedly arranged on the side surface of the cloth feeding tooth frame (1) and used for being connected with a differential adjusting mechanism;
two ends of the cloth feeding connecting rod (3) and a cloth feeding swing rod (4) of the crankshaft assembly (2) respectively penetrate through;
the cloth feeding guide block (7) penetrates through the crankshaft assembly (2), is in contact with the lower portion of the cloth feeding tooth rack (1), and is used for guiding the cloth feeding tooth rack (1) to move, and a guide groove for accommodating the cloth feeding guide block (7) is formed in the cloth feeding tooth rack (1).
2. The feed mechanism of claim 1, further comprising:
a swing driving rod (5) which passes through the cloth feeding connecting rod (3) and is connected with the differential adjusting mechanism.
3. The feed mechanism of claim 2, further comprising:
a first axial fastener (61) which is fixedly arranged on the cloth feeding connecting rod (3), abuts against one side of the cloth feeding swing rod (4) close to the cloth feeding tooth frame (1) and is used for limiting the axial movement of the cloth feeding swing rod (4);
and a second axial fastener (62) which is fixedly arranged on the cloth feeding connecting rod (3), is abutted against one side of the swing driving rod (5) far away from the cloth feeding swing rod (4) and is used for limiting the axial movement of the swing driving rod (5).
4. The feed mechanism of claim 3, further comprising:
a synchronous guide groove (81) arranged at one end of the cloth feeding tooth rack (1) far away from the cloth feeding guide block (7);
and the synchronous guide block (82) is arranged in the synchronous guide groove (81) and is used for guiding the cloth feeding tooth rack (1) to synchronously move along with the cloth feeding guide block (7).
5. The feed mechanism according to claim 3, characterized in that said crankshaft assembly (2) comprises:
a crankshaft (21) for providing torque;
and the supporting shaft sleeve (22) is arranged between the cloth feeding swing rod (4) and the crankshaft (21) and is used for supporting the cloth feeding swing rod (4).
6. A sewing machine comprising a differential adjustment mechanism, and further comprising a feed mechanism of a sewing machine connected to the differential adjustment mechanism as claimed in any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810488285.6A CN108385288B (en) | 2018-05-21 | 2018-05-21 | Sewing machine and cloth feeding mechanism thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810488285.6A CN108385288B (en) | 2018-05-21 | 2018-05-21 | Sewing machine and cloth feeding mechanism thereof |
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| Publication Number | Publication Date |
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| CN108385288A CN108385288A (en) | 2018-08-10 |
| CN108385288B true CN108385288B (en) | 2020-11-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810488285.6A Active CN108385288B (en) | 2018-05-21 | 2018-05-21 | Sewing machine and cloth feeding mechanism thereof |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102899813A (en) * | 2011-07-25 | 2013-01-30 | 兄弟工业株式会社 | Sewing machine and control method of sewing machine |
| CN105113136A (en) * | 2015-09-30 | 2015-12-02 | 杰克缝纫机股份有限公司 | Feed mechanism of sewing machine and sewing machine |
| CN106012321A (en) * | 2016-08-03 | 2016-10-12 | 杰克缝纫机股份有限公司 | Differential cloth-feed adjusting structure and sewing machine |
| CN106120172A (en) * | 2016-08-03 | 2016-11-16 | 杰克缝纫机股份有限公司 | There is the cloth feeding mechanism of needle gage regulatory function |
| EP3241937A1 (en) * | 2016-05-06 | 2017-11-08 | BERNINA International AG | Apparatus and method for manually exchanging a transporter |
| CN107700081A (en) * | 2017-11-03 | 2018-02-16 | 杰克缝纫机股份有限公司 | A kind of flat seaming machine and its cloth feeding mechanism |
-
2018
- 2018-05-21 CN CN201810488285.6A patent/CN108385288B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102899813A (en) * | 2011-07-25 | 2013-01-30 | 兄弟工业株式会社 | Sewing machine and control method of sewing machine |
| CN105113136A (en) * | 2015-09-30 | 2015-12-02 | 杰克缝纫机股份有限公司 | Feed mechanism of sewing machine and sewing machine |
| EP3241937A1 (en) * | 2016-05-06 | 2017-11-08 | BERNINA International AG | Apparatus and method for manually exchanging a transporter |
| CN106012321A (en) * | 2016-08-03 | 2016-10-12 | 杰克缝纫机股份有限公司 | Differential cloth-feed adjusting structure and sewing machine |
| CN106120172A (en) * | 2016-08-03 | 2016-11-16 | 杰克缝纫机股份有限公司 | There is the cloth feeding mechanism of needle gage regulatory function |
| CN107700081A (en) * | 2017-11-03 | 2018-02-16 | 杰克缝纫机股份有限公司 | A kind of flat seaming machine and its cloth feeding mechanism |
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| CN108385288A (en) | 2018-08-10 |
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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. |