CN101649530A - Transmission mechanism for needle bar of straight-type flat seaming machine - Google Patents
Transmission mechanism for needle bar of straight-type flat seaming machine Download PDFInfo
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- CN101649530A CN101649530A CN 200910307320 CN200910307320A CN101649530A CN 101649530 A CN101649530 A CN 101649530A CN 200910307320 CN200910307320 CN 200910307320 CN 200910307320 A CN200910307320 A CN 200910307320A CN 101649530 A CN101649530 A CN 101649530A
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- crank
- needle bar
- shank
- seaming machine
- flat seaming
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Abstract
The invention provides a transmission mechanism for a needle bar of a straight-type flat seaming machine, belonging to the technological field of machinery. The invention solves the technical problemsof low operating speed, strong vibration, and the like existing in the prior flat seaming machine. A crank axle capable of rotating and a needle bar capable of axially moving are fixedly arranged atthe head of the flat seaming machine; the mechanism is arranged between the crank axle and the needle bar and comprises a transmission connection rod and a crank sequentially arranged between the crank axle and the needle bar; the crank is sleeved on a fixed axle fixed at the head of the flat seaming machine and can rotate around the fixed axle; one end of the crank is connected with the needle bar, the other end of the crank is articulated with one end of the transmission connection rod; the other end of the transmission connection rod is articulated with the connection rod journal of the crank axle. The transmission mechanism for the needle bar enables the needle bar to realize the high-speed reciprocating motion, and the machine has the advantages of little vibration, simple structure,low cost and strong market competitiveness.
Description
Technical field
The invention belongs to field of mechanical technique, relate to a kind of transmission mechanism for needle bar, particularly a kind of transmission mechanism for needle bar of straight-type flat seaming machine.
Background technology
Along with industrial expansion, the straight-type flat seaming machine of industrial extensive use is had higher requirement, need in the flat seaming machine running more at a high speed, more stable during use, the vibration of machine is slighter.For this reason, be badly in need of the straight-type flat seaming machine of a kind of novel high speed of exploitation.
Flat seaming machine in the market mainly is the type based on middle low speed, and the shank of the machine of these models adopts lever-type transmission mechanism, exists problems such as the shank running speed is low, vibration is big.The operating rate of flat seaming machine depends primarily on the reciprocating speed of shank, suture needle is back and forth made on workpiece, and the reciprocal speed of shank is fast more, and the feeding speed of workpiece is also adjustable accordingly fast more, the operating rate of a whole like this flat seaming machine is just fast more, and production efficiency is just high more.Obvious existing technology can't satisfy client's demand.
Summary of the invention
The objective of the invention is the problems referred to above, a kind of transmission mechanism for needle bar of straight-type flat seaming machine that can realize the shank high-speed motion is provided at existing technology existence.
Purpose of the present invention can realize by following technical proposal: a kind of transmission mechanism for needle bar of straight-type flat seaming machine, the head place of flat seaming machine is installed with the bent axle that can rotate and can axially movable shank, this mechanism is located between bent axle and the shank, comprise kinematic link between bent axle and shank and crank successively, it is characterized in that, described crank is socketed on the fixed axis that is fixed on the head place and can rotates around it, one end of described crank is connected with shank, one end of the other end of described crank and described kinematic link is hinged, and the connecting rod neck of the other end of described kinematic link and bent axle is hinged.
The operation principle of this transmission device is as follows: the power unit of flat seaming machine drives bent axle and rotates, bent axle drives the reciprocal motion of kinematic link, kinematic link drives crank and does circumferential swing around fixed axis, and the other end of crank drives shank and does along its operative orientation reciprocating motion.Since bent axle can be at a high speed rotation, can do reciprocating motion at a high speed so that crank reaches swing at a high speed and then drives shank.Make the integral body of flat seaming machine can realize running up, improved its production efficiency.
In above-mentioned a kind of transmission mechanism for needle bar of straight-type flat seaming machine, described crank comprises working arm that links to each other with shank and the linking arm that links to each other with kinematic link, and described working arm and linking arm form the obtuse angle.It is different that the angle of cut that two working arms have the obtuse angle can make the direction of motion of kinematic link and shank produce, and the horizontal movement of kinematic link can be converted into the vertical motion of shank.
In above-mentioned a kind of transmission mechanism for needle bar of straight-type flat seaming machine, be provided with adjustment structure between described shank and the crank, described adjustment structure can be adjusted the angle of shank and crank.Crank is rounded around the track of fixed axis swing, but the operative orientation of shank fixes, this must make crank in the process of swing and the angle of shank be constantly to change, above-mentioned adjustment structure is used for adjusting this angle and changes.
In above-mentioned a kind of transmission mechanism for needle bar of straight-type flat seaming machine, described adjustment structure comprises the clamping element that is used for fixing shank, is provided with small rod between the working arm of described clamping element and crank, and described small rod and clamping element and crank are hinged respectively.Clamping element is fixed shank, and small rod can rotate around the working arm of clamping element or crank, and the working arm of crank can drive clamping element by small rod and pump when it is swung, but can not change the operative orientation of shank.
Compared with prior art, this transmission mechanism for needle bar of straight-type flat seaming machine can make shank realize reciprocating motion at a high speed, and the vibration of machine is smaller, and operating noise is low; This device simple in structure, production cost is low, and the market competitiveness is strong.
Description of drawings
Fig. 1 is the installation diagram of this transmission mechanism for needle bar of straight-type flat seaming machine.
Fig. 2 is the part drawing of bent axle.
Among the figure, 1, fixed axis; 2, bent axle; 2a, connecting rod neck; 2b, trunnion; 3, shank; 4, kinematic link; 5, crank; 5a, linking arm; 5b, working arm; 6, adjustment structure; 6a, clamping element; 6b, small rod.
The specific embodiment
Below be specific embodiments of the invention and in conjunction with the accompanying drawings, technical scheme of the present invention is further described, but the present invention be not limited to these embodiment.
As shown in Figure 1, this transmission mechanism for needle bar of straight-type flat seaming machine is positioned at the head place of flat seaming machine, comprises fixed axis 1 that is installed on the frame and the bent axle 2 that can freely rotate, and is arranged with the crank 5 that can rotate around it on the fixed axis 1.
As shown in Figure 2, bent axle 2 comprises the trunnion 2b of main part and the connecting rod neck 2a of middle part off-centre, and connecting rod neck 2a is provided with a ball rod that is used to connect.One end of crank 5 is fixed with shank 3, is connected by kinematic link 4 between the connecting rod neck 2a of the other end of crank 5 and bent axle 2, and the trunnion 2b of bent axle 2 and the power unit of flat seaming machine are connected, and the power unit in the present embodiment is a motor.The linking arm 5a of kinematic link 4 one ends and crank 5 is hinged, and the other end is hinged on the ball rod.Kinematic link 4 is existing along the moving and moving of vertical its axis arranged of its axis, and it can a motion with its axis direction pass to crank 5 with linking arm 5a after hinged.The operative orientation of shank 3 is a vertical direction in the present embodiment, but also can be the direction of level as another kind of scheme.
Crank 5 comprises working arm 5b that links to each other with shank 3 and the linking arm 5a that links to each other with kinematic link 4, and working arm 5b and linking arm 5a form angle, and this angle is the obtuse angle.Two working arm 5b have the direction of motion that this angle can make kinematic link 4 and shank 3 and produce differently, and the horizontal movement of kinematic link 4 can be converted into the vertical motion of shank 3.Be provided with adjustment structure 6 between shank 3 and the crank 5, adjustment structure 6 can be adjusted the angle of shank 3 and crank 5.Crank 5 is rounded around the track of fixed axis 1 swing, but the operative orientation of shank 3 fixes, this must make crank 5 in the process of swing and the angle of shank 3 be constantly to change, adjustment structure is used for adjusting this angle and changes.
Adjustment structure 6 comprises the clamping element 6a that is used for fixing shank 3, and clamping element 6a is connected with the working arm 5b of crank 5 by small rod 6b, and small rod 6b and above-mentioned both are hinged respectively.Clamping element 6a is fixing with shank 3, and small rod 6b can rotate around the working arm 5b of clamping element 6a or crank 5, and the working arm 5b of crank 5 can drive clamping element 6a by small rod 6b and pump when it is swung, but can not change the operative orientation of shank 3.
The operation principle of this transmission device is as follows: the power unit of flat seaming machine drives bent axle 2 and rotates, bent axle 2 drives the reciprocal motion of kinematic link 4, kinematic link 4 drives crank 5 and does circumferential swing around fixed axis 1, and the other end of crank 5 drives shank 3 and does along its operative orientation reciprocating motion.Since bent axle 2 can be at a high speed rotation, can do reciprocating motions at a high speed so that crank 5 reaches swing at a high speed and then drives shank 3.Make the integral body of flat seaming machine can realize running up, improved its production efficiency.This device simple in structure, production cost is low, and the market competitiveness is strong, and the vibration of machine is smaller, and operating noise is low.
Specific embodiment described herein only is that the present invention's spirit is illustrated.The technical staff of the technical field of the invention can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Claims (4)
1. transmission mechanism for needle bar of straight-type flat seaming machine, the head place of flat seaming machine is installed with the bent axle (2) that can rotate and can axially movable shank (3), this mechanism is located between bent axle (2) and the shank (3), comprise the kinematic link (4) and the crank (5) that are positioned at successively between bent axle (2) and the shank (3), it is characterized in that, described crank (5) is socketed on a fixed axis (1) that is fixed on the head place and goes up and can rotate around it, one end of described crank (5) is connected with shank (3), one end of the other end of described crank (5) and described kinematic link (4) is hinged, and the connecting rod neck (2a) of the other end of described kinematic link (4) and bent axle (2) is hinged.
2. transmission mechanism for needle bar of straight-type flat seaming machine according to claim 1, it is characterized in that, described crank (5) comprises working arm (5b) that links to each other with shank (3) and the linking arm (5a) that links to each other with kinematic link (4), and described working arm (5b) and linking arm (5a) form the obtuse angle.
3. transmission mechanism for needle bar of straight-type flat seaming machine according to claim 1 and 2 is characterized in that, is provided with adjustment structure (6) between described shank (3) and the crank (5), and described adjustment structure (6) can be adjusted the angle of shank (3) and crank (5).
4. transmission mechanism for needle bar of straight-type flat seaming machine according to claim 3, it is characterized in that, described adjustment structure (6) comprises the clamping element (6a) that is used for fixing shank (3), be provided with small rod (6b) between the working arm (5b) of described clamping element (6a) and crank (5), described small rod (6b) is hinged respectively with clamping element (6a) and crank (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910307320 CN101649530B (en) | 2009-09-18 | 2009-09-18 | Transmission mechanism for needle bar of straight-type flat seaming machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910307320 CN101649530B (en) | 2009-09-18 | 2009-09-18 | Transmission mechanism for needle bar of straight-type flat seaming machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101649530A true CN101649530A (en) | 2010-02-17 |
| CN101649530B CN101649530B (en) | 2012-12-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910307320 Active CN101649530B (en) | 2009-09-18 | 2009-09-18 | Transmission mechanism for needle bar of straight-type flat seaming machine |
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| Country | Link |
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| CN (1) | CN101649530B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112760840A (en) * | 2020-12-25 | 2021-05-07 | 陕西精一工业科技有限公司 | Flat seaming machine vibration and noise reduction device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2673205B1 (en) * | 1991-02-22 | 1993-07-09 | Sotexi Ste Textile Ind | TRANSMISSION DEVICE FOR SEWING MACHINES. |
| CN1091184C (en) * | 1997-06-13 | 2002-09-18 | 高林股份有限公司 | Needle-stick linkage transmission mechanism of sewing machine |
| CN1607286A (en) * | 2003-10-14 | 2005-04-20 | 重机公司 | Needle bar driving arrangement |
| CN201517464U (en) * | 2009-08-07 | 2010-06-30 | 许仁记 | Sea wave power generation device |
-
2009
- 2009-09-18 CN CN 200910307320 patent/CN101649530B/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112760840A (en) * | 2020-12-25 | 2021-05-07 | 陕西精一工业科技有限公司 | Flat seaming machine vibration and noise reduction device |
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| Publication number | Publication date |
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| CN101649530B (en) | 2012-12-05 |
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Effective date of registration: 20191025 Address after: Room 313, administrative service center, No.9, east section of Jianan Avenue, Taizhou City, Zhejiang Province Patentee after: Zhejiang Zhensheng Sewing Machinery Co., Ltd Address before: 318010 Zhejiang Xiachen District of Jiaojiang Province Street Airport Road No. 19 Patentee before: Zhejiang Qingben Sewing Machine Co., Ltd. |
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| TR01 | Transfer of patent right |