CN102002825A - Main shaft transmission mechanism of sewing machine - Google Patents
Main shaft transmission mechanism of sewing machine Download PDFInfo
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- CN102002825A CN102002825A CN2010105769534A CN201010576953A CN102002825A CN 102002825 A CN102002825 A CN 102002825A CN 2010105769534 A CN2010105769534 A CN 2010105769534A CN 201010576953 A CN201010576953 A CN 201010576953A CN 102002825 A CN102002825 A CN 102002825A
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- main shaft
- shaft
- countershaft
- sewing machine
- synchronous pulley
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Abstract
The invention provides a main shaft transmission mechanism of a sewing machine, belongs to the field of mechanical technology, and solves the problems of large occupied vertical space caused by vertical crossing of a secondary shaft and a main shaft existing in the main shaft transmission mechanism of the conventional sewing machine. The main shaft transmission mechanism of the sewing machine is arranged in a shell of the sewing machine and comprises the main shaft, wherein one end of the main shaft is connected with a power part, and the other end of the main shaft is provided with a crank connecting rod component connected with a needle bar; the secondary shaft is arranged on the lateral part of the main shaft; the secondary shaft is connected with the main shaft through a transmission member which can transfer the power of the main shaft to the secondary shaft; a transmission shaft connected with a needle fork and a thread take-up lever is positioned on the lower part of the main shaft; the secondary shaft is provided with a bevel gear I; the transmission shaft is provided with a bevel gear II which is engaged with the bevel gear I; the transmission shaft is arranged perpendicular to the secondary shaft and the transmission shaft and the secondary shaft are positioned in the same plane; and thus, the space occupancy of the entire transmission mechanism can be reduced, and the load pressure of the main shaft is relieved by increasing one secondary shaft.
Description
Technical field
The invention belongs to field of mechanical technique, relate to the spindle drive of a kind of transmission mechanism, particularly a kind of Sewing machines.
Background technology
Needle bar mechanism, string-hooking mechanism, thread take-up mechanism and feed mechanism are the 4 big principal organ that realize the sewing purpose, also are the most basic mechanisms of various special-purpose Sewing machiness.For some special machine, for example button holing sewing machine except that said mechanism, has also increased needle swinging mechanism.In button holing sewing machine, shank up-down mechanism, thread take-up mechanism and needle swinging mechanism are all driven by the rotation of main shaft.But the action inertia force of needle swinging mechanism and shank up-down mechanism is very big to the main axis rotation effect, makes main shaft be difficult to rotation at a high speed.
People explore for a long time for this reason, have proposed various embodiments.For example, Chinese patent literature discloses a kind of Sewing machines (application number: 200610105734.1), rotate by the electrical motor of sewing machine driving main shaft, the spindle crank fixing with main shaft drives the work of shank up-down mechanism, and and adopt gear drive between the countershaft that sets of main shaft crossings on different level and the main shaft, countershaft also rotates simultaneously on main axis rotation ground, drive the thread take-up tension lever swing of the thread take-up mechanism that is connected with this countershaft right-hand member linkage type, utilize the needle swinging mechanism that is connected with countershaft left end linkage type to make the shank swing simultaneously.Thereby reach the purpose that main shaft and countershaft separately drive shank up-down mechanism, needle swinging mechanism and thread take-up mechanism.
This scheme has been improved the operating rate of Sewing machines to a certain extent, but because its countershaft and main shaft crossings on different level, the space is bigger about taking.
Summary of the invention
The objective of the invention is at the problems referred to above, propose a kind of rationally distributedly, take the up and down little spindle drive in space.
Purpose of the present invention can realize by following technical proposal: a kind of spindle drive of Sewing machines, be arranged in the casing of Sewing machines, comprise the main shaft that the one end links to each other with power section, the main shaft other end has and is used for the crank rod assembly that is connected with shank, it is characterized in that, described main shaft sidepiece is provided with countershaft, between countershaft and the main shaft by the transmission of power of the main shaft driving member to countershaft being connected, the power transmission shaft that links to each other with thread take-up tension lever with pin pendulum fork is positioned at the main shaft bottom, have awl tooth one on the above-mentioned countershaft, have the awl tooth two that is meshed with awl tooth one on the above-mentioned power transmission shaft.
In the spindle drive of above-mentioned Sewing machines, described countershaft and spindle parallel setting.By countershaft is set, can solve the problem that part is too concentrated, be easy for installation and maintenance.When needs increase or reduce part, can only dismantle the countershaft at this part place, and to other parts without any influence.
In the spindle drive of above-mentioned Sewing machines, described driving member is the synchronous pulley one and the synchronous pulley two and the synchronous band that are connected on the countershaft that is connected on the main shaft, and band is enclosed within on synchronous pulley one and the synchronous pulley two synchronously.Band transmission synchronously has gearratio accurately, no slippage, and transmission is stable, can absorbing, noise is little, transmission efficiency height, advantage such as maintaining conveniently need not lubricated, and maintenance cost is low.
In the spindle drive of above-mentioned Sewing machines, described driving member is the travelling gear one and the travelling gear two that is connected on the countershaft that is connected on the main shaft, and travelling gear one is meshed with travelling gear two.
In the spindle drive of above-mentioned Sewing machines, the vertical setting of described power transmission shaft and both are in same plane with countershaft.Can dwindle the space hold of whole transmission mechanism like this.
Compared with prior art, the advantage of the spindle drive of this Sewing machines is:
1. rationally distributed, the space is little about taking.
2. by increasing a countershaft, alleviate the load pressure of main shaft.
Description of drawings
Fig. 1 is a main TV structure schematic diagram provided by the invention.
Fig. 2 is a plan structure schematic diagram provided by the invention.
Among the figure, 1, main shaft; 2, countershaft; 3, power transmission shaft; 4, shank up-down mechanism; 4a, spindle crank; 5, thread take-up mechanism; 5a, thread take-up tension lever cam; 5b, thread take-up tension lever; 6, needle swinging mechanism; 6a, pin pendulum cam; 6b, pin pendulum fork; 6c, pin pendulum fork shaft; 6d, pin pendulum connecting rod; 7, synchronous pulley one; 8, synchronous pulley two; 9, be with synchronously; 10, awl tooth one; 11, awl tooth two.
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 and Figure 2, the present invention includes main shaft 1, countershaft 2, power transmission shaft 3.Be provided with a countershaft in parallel 2 on main shaft 1 side, be provided with a driving member between main shaft 1 and the countershaft 2, driving member comprises synchronous pulley 1, the synchronous pulley 28 that is connected respectively on main shaft 1 and the countershaft 2, and is enclosed within and is with 9 synchronously on synchronous pulley 1 and the synchronous pulley 28.Countershaft 2 and power transmission shaft 3 vertical settings and both are in same plane, and countershaft 2 one ends are provided with awl tooth 1, are meshed with the awl tooth 2 11 that is fixed on power transmission shaft 3 left ends.Countershaft 2 and power transmission shaft 3 can be realized rotating synchronously under the driving of main shaft 1.
At the leading section of the main shaft 1 spindle crank 4a that is being connected, spindle crank 4a is connected with shank up-down mechanism 4.
Be fixed with thread take-up tension lever cam 5a in power transmission shaft 3 right parts, thread take-up tension lever cam 5a is connected with thread take-up tension lever 5b linkage type.Engaging two forked pin pendulum fork 6b on the pin pendulum cam 6a that is connected with power transmission shaft 3 middle parts, the bottom of pin pendulum fork 6b is rotatably supported on the pin pendulum fork shaft 6c that is fixed in machine frame.The side of pin pendulum fork 6b is connected with the end of pin pendulum connecting rod 6d, and the other end of pin pendulum connecting rod 6d is connecting needle swinging mechanism 6.
1 rotation of motor-driven main shaft makes shank up-down mechanism 4 realize moving up and down by spindle crank 4a.At main shaft 1 rotatably simultaneously, synchronous pulley one 7 rotations, synchronous pulley 1 rotates together by driving the synchronous pulley 28 and the countershaft 2 that are fixed on the countershaft 2 with 9 synchronously, countershaft 2 makes power transmission shaft 3 rotations by awl tooth 1, awl tooth 2 11, the pin pendulum cam 6a at the thread take-up tension lever cam 5a of power transmission shaft 3 right parts and power transmission shaft 3 middle parts follows power transmission shaft 3 rotations, thereby make the thread take-up tension lever 5b swing of the thread take-up mechanism 5 that is connected with thread take-up tension lever cam 5a linkage type, utilize the swing of the pin pendulum connecting rod 6d that is connected with power transmission shaft 3 middle part linkage types simultaneously, drive needle swinging mechanism 6 swings.
According to actual conditions, driving member also can be for being connected in the travelling gear one and travelling gear two formations that are connected on the countershaft on the main shaft.
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.
Although this paper has used main shaft 1 morely; Countershaft 2; Power transmission shaft 3; Shank up-down mechanism 4; Spindle crank 4a; Thread take-up mechanism 5; Thread take-up tension lever cam 5a; Thread take-up tension lever 5b; Needle swinging mechanism 6; Pin pendulum cam 6a; Pin pendulum fork 6b; Pin pendulum fork shaft 6c; Pin pendulum connecting rod 6d; Synchronous pulley 1; Synchronous pulley 28; Be with 9 synchronously; Awl tooth 1; Awl tooth 2 11 terms such as grade, but do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present invention more easily; They are construed to any additional restriction all is contrary with spirit of the present invention.
Claims (5)
1. the spindle drive of a Sewing machines, be arranged in the casing of Sewing machines, comprise the main shaft (1) that the one end links to each other with power section, main shaft (1) other end has and is used for the crank rod assembly that is connected with shank, it is characterized in that, described main shaft (1) sidepiece is provided with countershaft (2), between countershaft (2) and the main shaft (1) by the transmission of power of main shaft (1) driving member to countershaft (2) being connected, the power transmission shaft (3) that links to each other with thread take-up tension lever (5b) with pin pendulum fork (6b) is positioned at main shaft (1) bottom, have awl tooth one (10) on the above-mentioned countershaft (2), have the awl tooth two (11) that is meshed with awl tooth one (10) on the above-mentioned power transmission shaft (3).
2. the spindle drive of Sewing machines according to claim 1 is characterized in that, described countershaft (2) be arranged in parallel with main shaft (1).
3. the spindle drive of Sewing machines according to claim 2, it is characterized in that, described driving member is for being connected in the synchronous pulley one (7) on the main shaft (1) and being connected in the synchronous pulley two (8) on the countershaft (2) and being with (9) synchronously, and band (9) is enclosed within on synchronous pulley one (7) and the synchronous pulley two (8) synchronously.
4. according to the spindle drive of claim 1 or 2 or 3 described Sewing machiness, it is characterized in that, described driving member is the travelling gear one and the travelling gear two that is connected on the countershaft (2) that is connected on the main shaft (1), and travelling gear one is meshed with travelling gear two.
5. according to the spindle drive of claim 1 or 2 or 3 described Sewing machiness, it is characterized in that described power transmission shaft (3) is with the vertical setting of countershaft (2) and both are in same plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105769534A CN102002825A (en) | 2010-12-07 | 2010-12-07 | Main shaft transmission mechanism of sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105769534A CN102002825A (en) | 2010-12-07 | 2010-12-07 | Main shaft transmission mechanism of sewing machine |
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| Publication Number | Publication Date |
|---|---|
| CN102002825A true CN102002825A (en) | 2011-04-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105769534A Pending CN102002825A (en) | 2010-12-07 | 2010-12-07 | Main shaft transmission mechanism of sewing machine |
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| CN (1) | CN102002825A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103696161A (en) * | 2013-12-19 | 2014-04-02 | 吴江市菀坪宝得利缝制设备机械厂 | Swing needle mechanism for sewing machine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000084272A (en) * | 1998-09-11 | 2000-03-28 | Datsukusu:Kk | Embroidery sewing machine |
| CN1904181A (en) * | 2005-07-27 | 2007-01-31 | 兄弟工业株式会社 | Keyhole sartorius |
| CN1948587A (en) * | 2006-11-03 | 2007-04-18 | 中捷缝纫机股份有限公司 | Driving mechanism of sewing machine |
| CN201241251Y (en) * | 2008-07-21 | 2009-05-20 | 庄旺机械股份有限公司 | Transverse tube-type herringbone industrial sewing machine structure improvement |
| CN101778971A (en) * | 2007-08-08 | 2010-07-14 | 株式会社铃木制作所 | Single thread lock stitch hand stitch formation method and machine |
| CN201942881U (en) * | 2010-12-07 | 2011-08-24 | 中捷缝纫机股份有限公司 | Main-axis transmission mechanism for sewing machine |
-
2010
- 2010-12-07 CN CN2010105769534A patent/CN102002825A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000084272A (en) * | 1998-09-11 | 2000-03-28 | Datsukusu:Kk | Embroidery sewing machine |
| CN1904181A (en) * | 2005-07-27 | 2007-01-31 | 兄弟工业株式会社 | Keyhole sartorius |
| CN1948587A (en) * | 2006-11-03 | 2007-04-18 | 中捷缝纫机股份有限公司 | Driving mechanism of sewing machine |
| CN101778971A (en) * | 2007-08-08 | 2010-07-14 | 株式会社铃木制作所 | Single thread lock stitch hand stitch formation method and machine |
| CN201241251Y (en) * | 2008-07-21 | 2009-05-20 | 庄旺机械股份有限公司 | Transverse tube-type herringbone industrial sewing machine structure improvement |
| CN201942881U (en) * | 2010-12-07 | 2011-08-24 | 中捷缝纫机股份有限公司 | Main-axis transmission mechanism for sewing machine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103696161A (en) * | 2013-12-19 | 2014-04-02 | 吴江市菀坪宝得利缝制设备机械厂 | Swing needle mechanism for sewing machine |
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Application publication date: 20110406 |