CN107034598A - A kind of crosspointer cylindrical sewing machine automatic wire cutting mechanism - Google Patents
A kind of crosspointer cylindrical sewing machine automatic wire cutting mechanism Download PDFInfo
- Publication number
- CN107034598A CN107034598A CN201610153591.5A CN201610153591A CN107034598A CN 107034598 A CN107034598 A CN 107034598A CN 201610153591 A CN201610153591 A CN 201610153591A CN 107034598 A CN107034598 A CN 107034598A
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- tangent
- tangent line
- moving knife
- crank
- sewing machine
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B65/00—Devices for severing the needle or lower thread
- D05B65/02—Devices for severing the needle or lower thread controlled by the sewing mechanisms
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The present invention relates to sewing-machine equipment technical field, and in particular to a kind of crosspointer cylindrical sewing machine automatic wire cutting mechanism.Including being arranged at the tangential cam that can be rotated on sewing machine and around its own axis, the first tangent mechanism, the second tangent mechanism, tangent line driving crank, tangent line crank block and tangent line power transmission shaft, guide groove is offered on the outer surface of the tangential cam, the tangent line driving crank is rotated with tangent line crank block to be connected, the tangent line crank block is fixedly installed on one end of tangent line power transmission shaft, the tangent line driving crank and is fixed with cylindrical roller.The present invention is cooperated by the first tangent mechanism and the second tangent mechanism and is synchronized with the movement, the shearing work to bottom line and upper thread on crosspointer cylindrical sewing machine can be automatically performed simultaneously, compared with prior art, time saving and energy saving without manually operating, production efficiency is high, and the uniformity of the end of a thread is good, the aesthetic property of product is ensure that, while improving the utilization rate of bottom line, is had a good application prospect and use value.
Description
Technical field
The present invention relates to sewing-machine equipment technical field, and in particular to a kind of crosspointer cylindrical sewing machine automatic wire cutting mechanism.
Background technology
Existing crosspointer cylindrical sewing machine is in process of manufacture is carried out, the special tangent mechanism due to lacking, and every time in the sewing operation of one product of completion, need to manually cut off upper thread and bottom line.On the one hand, due to using artificial operation, the uniformity of shearing gained the end of a thread is poor, influences the attractive in appearance of product, and waste time and energy；When on the other hand, due to shearing bottom line every time, it is required for workpiece being shifted out, many bottom lines of pull-out can be so pulled, so as to reduce the utilization rate of bottom line.
The content of the invention
In view of the shortcomings of the prior art, the invention provides a kind of crosspointer cylindrical sewing machine automatic wire cutting mechanism.
Technical solution of the present invention is as follows：
A kind of crosspointer cylindrical sewing machine automatic wire cutting mechanism, including being arranged at the tangential cam that can be rotated on sewing machine and around its own axis, first tangent mechanism, second tangent mechanism, tangent line drives crank, tangent line crank block and tangent line power transmission shaft, guide groove is offered on the outer surface of the tangential cam, the tangent line driving crank is rotated with tangent line crank block to be connected, the tangent line crank block is fixedly installed in one end of tangent line power transmission shaft, cylindrical roller is fixed with the tangent line driving crank, one surface of the cylindrical roller and tangential cam is mutually close, and during operation, the cylindrical roller can the surface of tangentially cam slip into just in guide groove, and moved along track where guide groove, the rotation shuttle seat of first tangent mechanism and the second tangent mechanism all by being installed on sewing machine, moving knife seat and the stationary knife being fixed in rotation shuttle seat, the moving knife being fixed on moving knife seat, moving knife crank and moving knife drive block are constituted, wherein, moving knife seat is coaxial with moving knife crank and rotates the upper and lower for being connected and installed in rotation shuttle seat, moving knife crank is rotated with moving knife drive block and is connected, first tangent mechanism and the second tangent mechanism are all fixedly installed on tangent line power transmission shaft by corresponding moving knife drive block, it is located at the middle part and the other end of tangent line power transmission shaft the same side respectively, and the setting that is centrosymmetric, the moving knife synchronization job of both first tangent mechanism and the second tangent mechanism, when cylindrical roller is moved in guide groove, moving knife on first tangent mechanism and the second tangent mechanism is all mutually ratcheting with stationary knife, when cylindrical roller is located at outside guide groove, first tangent mechanism and moving knife and stationary knife on the second tangent mechanism are all separated.
The cylindrical roller by pin, be sheathed on the sleeve of pin one end and the ball between sleeve and pin is constituted, the cylindrical roller is fixed on tangent line by the other end of pin and driven on crank.
The beneficial effects of the present invention are：Cooperated and be synchronized with the movement by the first tangent mechanism and the second tangent mechanism, the shearing work to bottom line and upper thread on crosspointer cylindrical sewing machine can be automatically performed simultaneously, compared with prior art, time saving and energy saving without manually operating, production efficiency is high, and the uniformity of the end of a thread is good, the aesthetic property of product is ensure that, while improving the utilization rate of bottom line, is had a good application prospect and use value.
Brief description of the drawings
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1 is the structural representation one of the present invention.
Fig. 2 is the structural representation two of the present invention.
Fig. 3 is the structural representation of cylindrical roller.
Wherein：1st, tangent line power transmission shaft；2nd, tangent line crank block；3rd, tangential cam；4th, tangent line driving crank；5th, moving knife crank；6th, the first tangent mechanism；7th, moving knife seat；8th, moving knife；9th, the second tangent mechanism；10th, rotation shuttle seat；11st, moving knife drive block；12nd, stationary knife；13rd, cylindrical roller；14th, guide groove；15th, pin；16th, sleeve.
Embodiment
The invention will now be described in further detail with reference to the accompanying drawings.
Refering to Fig. 1 to Fig. 3,A kind of crosspointer cylindrical sewing machine automatic wire cutting mechanism,Including being arranged at the tangential cam 3 that can be rotated on sewing machine and around its own axis,First tangent mechanism 6,Second tangent mechanism 9,Tangent line drives crank 4,Tangent line crank block 2 and tangent line power transmission shaft 1,Guide groove 14 is offered on the outer surface of the tangential cam 3,The tangent line driving crank 4 is rotated with tangent line crank block 2 to be connected,The tangent line crank block 2 is fixedly installed in one end of tangent line power transmission shaft 1,Cylindrical roller 13 is fixed with the tangent line driving crank 4,One surface of the cylindrical roller 13 and tangential cam 3 is mutually close,And during operation,The cylindrical roller 13 can the surface of tangentially cam 3 slip into just in guide groove 14,And moved along the place track of guide groove 14,Rotation shuttle seat 10 of the tangent mechanism 9 of first tangent mechanism 6 and second all by being installed on sewing machine,Moving knife seat 7 and the stationary knife 12 being fixed in rotation shuttle seat 10,The moving knife 8 being fixed on moving knife seat 7,Moving knife crank 5 and moving knife drive block 11 are constituted,Wherein,Moving knife seat 7 is coaxial with moving knife crank 5 and rotates the upper and lower for being connected and installed in rotation shuttle seat 10,Moving knife crank 5 is rotated with moving knife drive block 11 and is connected,The tangent mechanism 9 of first tangent mechanism 6 and second is all fixedly installed on tangent line power transmission shaft 1 by corresponding moving knife drive block 11,It is located at the middle part and the other end of the same side of tangent line power transmission shaft 1 respectively,And the setting that is centrosymmetric,The moving knife synchronization job of both tangent mechanisms 9 of first tangent mechanism 6 and second,When cylindrical roller 13 is moved in guide groove 14,First tangent mechanism 6 and the moving knife 8 and stationary knife 12 on the second tangent mechanism 9 are all mutually ratcheting,When cylindrical roller 13 is outer positioned at guide groove 14,Moving knife 8 and stationary knife 12 on the tangent mechanism 9 of first tangent mechanism 6 and second are all separated.
The cylindrical roller by pin 15, be sheathed on the sleeve 16 of the one end of pin 15 and the ball between sleeve 16 and pin 15 is constituted, the cylindrical roller 13 is fixed on tangent line by the other end of pin 15 and driven on crank 4.
Principle is：During operation, tangential cam 1 starts the axis rotation around its own under the driving of sewing mechanomotive force, when the guide groove 14 opened up on tangential cam 1 is close to the cylindrical roller 13 being fixed on tangent line driving crank 4, cylindrical roller 13 is brought in guide groove 14 immediately, and moved along the track of guide groove 14, the tangent line driving concomitant rotation of crank 4 being fixedly connected simultaneously with cylindrical roller 13, and drive tangent line crank block 2 to swing back and forth, during tangent line crank block 2 swings back and forth, the tangent line power transmission shaft 1 being fixed on tangent line crank block 2 drives the moving knife drive block 11 being located at respectively on the first tangent mechanism 6 and the second tangent mechanism 9 while swinging back and forth, and drive the moving knife crank 5 of two groups of tangent mechanisms to rotate, so that with the moving knife of the coaxial connection of moving knife crank 5 seat 7 also concomitant rotation, i.e. so that the moving knife 8 on each tangent mechanism is rotated relative to corresponding stationary knife 12, when cylindrical roller 13 is moved in guide groove 14, moving knife 8 and stationary knife 12 on two groups of tangent mechanisms is all mutually ratcheting, the upper thread and bottom line being located at respectively between two groups of moving knife 8 and stationary knife 12 can be cut off simultaneously, compared with prior art, without manually operating, it is time saving and energy saving, production efficiency is high, and the uniformity of the end of a thread is good, it ensure that the aesthetic property of product, the utilization rate of bottom line is improved simultaneously, have a good application prospect and use value.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or using the present invention, and General Principle defined herein can be realized in other embodiments without departing from the spirit or scope of the present invention.The scope of the present invention is limited by claim and its equivalent.
Claims (2)
1. a kind of crosspointer cylindrical sewing machine automatic wire cutting mechanism, including it is arranged at the tangential cam that can be rotated on sewing machine and around its own axis（3）, the first tangent mechanism（6）, the second tangent mechanism（9）, tangent line driving crank（4）, tangent line crank block（2）And tangent line power transmission shaft（1）, it is characterised in that：The tangential cam（3）Outer surface on offer guide groove（14）, the tangent line driving crank（4）With tangent line crank block（2）Rotate connection, the tangent line crank block（2）It is fixedly installed in tangent line power transmission shaft（1）One end, the tangent line drives crank（4）On be fixed with cylindrical roller（13）, the cylindrical roller（13）With tangential cam（3）A surface it is mutually close, and during operation, the cylindrical roller（13）Can the surface of tangentially cam slip into guide groove just（14）It is interior, and along guide groove（14）Place track is moved, first tangent mechanism（6）With the second tangent mechanism（9）Rotation shuttle seat all by being installed on sewing machine（10）, be fixed on rotation shuttle seat（10）On moving knife seat（7）And stationary knife（12）, be fixed on moving knife seat（7）On moving knife（8）, moving knife crank（5）And moving knife drive block（11）Constitute, wherein, moving knife seat（7）With moving knife crank（5）It is coaxial and rotate be connected and installed in rotation shuttle seat（10）Upper and lower, moving knife crank（5）With moving knife drive block（11）Rotate connection, first tangent mechanism（6）With the second tangent mechanism（9）All pass through corresponding moving knife drive block（11）It is fixedly installed in tangent line power transmission shaft（1）On, respectively positioned at tangent line power transmission shaft（1）The middle part of the same side and the other end, and the setting that is centrosymmetric, first tangent mechanism（6）With the second tangent mechanism（9）Both moving knife（8）Synchronization job, works as cylindrical roller（13）In guide groove（14）During interior motion, first tangent mechanism（6）With the second tangent mechanism（9）On moving knife（8）And stationary knife（12）It is all mutually ratcheting, work as cylindrical roller（13）Positioned at guide groove（14）When outer, first tangent mechanism（6）With the second tangent mechanism（9）On moving knife（8）And stationary knife（12）All it is separated.
2. crosspointer cylindrical sewing machine automatic wire cutting mechanism according to claim 1, it is characterised in that：The cylindrical roller（13）By pin（15）, be sheathed on pin（15）The sleeve of one end（16）And located at sleeve（16）With pin（15）Between ball constitute, the cylindrical roller（13）Pass through pin（15）The other end be fixed on tangent line driving crank（4）On.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610153591.5A CN107034598A (en) | 2016-03-17 | 2016-03-17 | A kind of crosspointer cylindrical sewing machine automatic wire cutting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610153591.5A CN107034598A (en) | 2016-03-17 | 2016-03-17 | A kind of crosspointer cylindrical sewing machine automatic wire cutting mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107034598A true CN107034598A (en) | 2017-08-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610153591.5A Pending CN107034598A (en) | 2016-03-17 | 2016-03-17 | A kind of crosspointer cylindrical sewing machine automatic wire cutting mechanism |
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| Country | Link |
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| CN (1) | CN107034598A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111206346A (en) * | 2018-11-21 | 2020-05-29 | 吴江市优力机械有限公司 | Automatic thread cutting device for double-needle-column type sewing machine |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57200186A (en) * | 1981-06-02 | 1982-12-08 | Pegasus Sewing Machine Mfg Co | Yarn cutting apparatus of sewing machine |
| CN201151807Y (en) * | 2007-12-27 | 2008-11-19 | 江苏菀坪缝纫机技术服务有限公司 | Severing thread device for sewing machine |
| CN202202121U (en) * | 2011-08-20 | 2012-04-25 | 宁波舒普机电科技有限公司 | Upper thread trimming device |
| CN202208826U (en) * | 2011-08-17 | 2012-05-02 | 宁波舒普机电科技有限公司 | Bottom line cutting device |
| CN102605571A (en) * | 2012-04-05 | 2012-07-25 | 宁波舒普机电科技有限公司 | Double-needle loop sewing machine with thread cutting structure |
| CN202559073U (en) * | 2012-04-05 | 2012-11-28 | 宁波舒普机电科技有限公司 | Needle plate thread cutting structure of double-needle loop sewing machine |
| CN202559050U (en) * | 2012-04-05 | 2012-11-28 | 宁波舒普机电科技有限公司 | Double-needle loop sewing machine |
-
2016
- 2016-03-17 CN CN201610153591.5A patent/CN107034598A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57200186A (en) * | 1981-06-02 | 1982-12-08 | Pegasus Sewing Machine Mfg Co | Yarn cutting apparatus of sewing machine |
| CN201151807Y (en) * | 2007-12-27 | 2008-11-19 | 江苏菀坪缝纫机技术服务有限公司 | Severing thread device for sewing machine |
| CN202208826U (en) * | 2011-08-17 | 2012-05-02 | 宁波舒普机电科技有限公司 | Bottom line cutting device |
| CN202202121U (en) * | 2011-08-20 | 2012-04-25 | 宁波舒普机电科技有限公司 | Upper thread trimming device |
| CN102605571A (en) * | 2012-04-05 | 2012-07-25 | 宁波舒普机电科技有限公司 | Double-needle loop sewing machine with thread cutting structure |
| CN202559073U (en) * | 2012-04-05 | 2012-11-28 | 宁波舒普机电科技有限公司 | Needle plate thread cutting structure of double-needle loop sewing machine |
| CN202559050U (en) * | 2012-04-05 | 2012-11-28 | 宁波舒普机电科技有限公司 | Double-needle loop sewing machine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111206346A (en) * | 2018-11-21 | 2020-05-29 | 吴江市优力机械有限公司 | Automatic thread cutting device for double-needle-column type sewing machine |
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Application publication date: 20170811 |