CN203729067U - Thread trimming mechanism of vertical post needle feeding sewing machine - Google Patents
Thread trimming mechanism of vertical post needle feeding sewing machine Download PDFInfo
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- CN203729067U CN203729067U CN201320871201.XU CN201320871201U CN203729067U CN 203729067 U CN203729067 U CN 203729067U CN 201320871201 U CN201320871201 U CN 201320871201U CN 203729067 U CN203729067 U CN 203729067U
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- sewing machine
- cutting blade
- blade
- movable arbor
- needle feed
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Abstract
A thread trimming mechanism of a vertical post needle feeding sewing machine comprises a movable blade, a connecting rod for driving the movable blade, a thread trimming cam for driving the connecting rod, and a fixed blade matched with the movable blade. The thread trimming mechanism of the vertical post needle feeding sewing machine solves the problem that an existing vertical post needle feeding sewing machine can not achieve automatic thread trimming.
Description
Technical field
The utility model relates to Sewing machines, relates in particular to a kind of column Sewing machine with needle feed thread cutting mechanism.
Background technology
The machine of threading is to use one or more sewing thread, forms one or more stitchings on sewing, the machine that makes one or more layers sewing interweave or unite by a seam.In China Patent No., be 98122522.5, within open day, be June 23 in 1999 day, be called in the patent document of " clothes limit turns limit Sewing machines automatically " and disclose a kind of Sewing machines.There is the deficiency that needs artificial trimming in existing column Sewing machine with needle feed.
Utility model content
The utility model provides a kind of column Sewing machine with needle feed thread cutting mechanism, has solved the problem that existing column Sewing machine with needle feed can not carry out automatic shearing.
Above technical problem solves by following technical proposal: a kind of column Sewing machine with needle feed thread cutting mechanism, comprises cutting blade, the driving connecting rod of cutting blade, the trimming cam of drive link and the cutter stator coordinating with cutting blade.During use, the utility model is arranged on to head base plate below, not during trimming cutting blade and cutter stator in separated position, between upper thread and inner line (being referred to as below sewing thread) slave blade and cutter stator, pass, while needing trimming, reciprocating by trimming actuated by cams connecting rod, connecting rod drives cutting blade with respect to cutter stator folding, cutter stator and cutting blade are cut off sewing thread, after secant completes, trimming cam stops drive link motion, and cutting blade stops at does not interfere Sewing machines to carry out the place of sewing operation.
The utility model also comprises clutch and slide block, described connecting rod one end and described cutting blade link together, the other end and described slide block link together, described trimming cam is cylindrical cam, the side face of described trimming cam is provided with chute, described slide block can link together to clutch with described chute by described clutch, described column Sewing machine with needle feed is provided with line shaft, and described trimming cam drives by described line shaft.Can be in the situation that do not increase the apparent size of existing column Sewing machine with needle feed and realize the utility model is installed in Sewing machines.In Sewing machines work process, line shaft drives trimming cam to rotate, if do not carry out trimming work, under the effect of clutch, the slide block outside, the connecting rod that are positioned at chute can not move together in company with trimming cam; When wanting trimming, under the effect of clutch, slide block is positioned at chute, connecting rod moves together in company with trimming cam, drives cutting blade reciprocating motion during link motion, thereby realizes trimming.
As preferably, described clutch comprises mount pad, fork, electromagnet and back-moving spring, one end of described fork be provided with fork hinge and hinged with described mount pad by fork hinge, another is with together with described rod hinge connection; Described back-moving spring and electromagnet the two, one be used for driving fork to move axially along fork hinge and make that described slide block is inserted in described chute, another one is for driving fork move axially and described slide block is extracted in described chute along fork hinge.Simple in structure.
As preferably, described electromagnet is used for driving fork move axially and described slide block is inserted in described chute along fork hinge, and described back-moving spring is used for driving fork move axially and described slide block is extracted in described chute along fork hinge.If during electromagnet inefficacy (not producing magnetic force), trimming cam and connecting rod are in released state, be that the utility model can not carry out trimming action, otherwise moving electric sector-meeting is a kind of in motion, so the technical program can prevent that electromagnet from affecting the suture operation of Sewing machines while losing efficacy.
As preferably, described line shaft is that described line shaft is the lower shaft of column Sewing machine with needle feed.Convenience in the time of can improving scrap build.
The utility model also comprises knife rest and the movable arbor vertically extending, movable arbor is rotationally connected with described knife rest, described cutter stator is fixed in the upper end of described knife rest, described cutting blade and cutter stator along continuous straight runs distribute, described cutter stator is provided with stationary knife blade, described stationary knife blade vertically extends, the lower end of described movable arbor is connected with the crank that drives movable arbor to rotate, one end of described crank and described connecting rod is hingedly connected together, the other end of described connecting rod is connected with described trimming cam, described cutting blade is fixed in the upper end of described movable arbor, described cutting blade is provided with " V " font moving knife blade.While carrying out trimming operation, by movable arbor, drive cutting blade reciprocating rotation, in the process that cutting blade rotates, moving knife blade catches on sewing thread, sewing thread is drawn close towards stationary knife blade when moving knife blade slides, blade is cut and the action of sawing sewing thread simultaneously, can be avoided like this blade to produce concentrated wear, can make sewing thread be cut off reliably again.Connecting rod drives movable arbor to make cutter stator remove to carry out tangent line by rotational action by crank, can in the situation that link motion speed is less, realize cutting blade and there is larger trimming speed, thereby the reliability in the time of can further improving trimming, can also hour sewing thread be cut off reliably at line shaft rotating speed, the utility model can be mated with the Sewing machines of different rotating speeds, thereby improved versatility of the present utility model.
As preferably, described cutting blade is tulwar, and the outer peripheral edges of described cutting blade are provided with described moving knife blade, described cutting blade along the axial lower surface of movable arbor, be provided with described moving knife blade.The utility model can both reliably entirely be cut off the different sewing wire harness in scatter angle and angle of inclination.
As preferably, described knife rest is the rotating shuttle seat of column Sewing machine with needle feed.Convenient during transformation.
The utlity model has following advantage: can realize automatically cutting off of sewing thread, effectively improve the operating efficiency of Sewing machines.
Accompanying drawing explanation
Fig. 1 is split view of the present utility model.
Fig. 2 is the local enlarged diagram at A place in Fig. 1.
Fig. 3 is the local enlarged diagram at B place in Fig. 1.
Fig. 4 is use view of the present utility model.
In figure: trimming cam mechanism 1, trimming cam 11, chute 111, cam shaft 12, back-up ring 13, clutch 2, mount pad 21, fork 22, electromagnet 23, fork hinge 24, back-moving spring 25, slide block 26, suspension plate 27, linkage 3, connecting rod 31, right connecting bolt 32, left connecting bolt 33, tool rest 4, cutting blade 5, moving knife blade 51, the first moving knife blade 511, the second moving knife blade 512, the free end 5121 of the lower sword of the second moving knife blade, the 3rd moving knife blade 513, the free end 5131 of the lower sword of the 3rd moving knife blade, cutting blade along the axial upper surface 52 of movable arbor, crank 53, movable arbor 54, cutter stator 6, stationary knife blade 61, head base plate 7, head of sewing machine 8.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is further described.
Referring to Fig. 1, a kind of column Sewing machine with needle feed thread cutting mechanism, comprises trimming cam mechanism 1, clutch 2, linkage 3, tool rest 4, cutting blade 5 and cutter stator 6.
Trimming cam mechanism 1 comprises trimming cam 11, cam shaft 12 and back-up ring 13.Trimming cam 11 is cylindrical cam.The axis along continuous straight runs of trimming cam 31 extends.The side face of trimming cam 11 is provided with chute 111.Cam shaft 12 is tubular structure.The method that trimming cam mechanism 1 is combined is: cam shaft 12 is located in trimming cam 11 and by back-up ring 13 and is fixed.
Clutch 2 comprises mount pad 21, fork 22, electromagnet 23, fork hinge 24 and back-moving spring 25.Fork 22 is the level of state.Fork 22 upper surfaces are provided with slide block 26.One end of fork 22 is hinged by fork hinge 24 and mount pad 21.Electromagnet 23 is fixed on mount pad 21 by suspension plate 27.Slide block 26 is positioned at the below of chute 111 trimming cams 11.Certainly slide block 26 also can be set directly on linkage 3.Electromagnet 23 is for driving fork 22 axially move up and make slide block 26 be inserted into chute 111 (be also electromagnet 23 electric and slide block 26 is slided in chute 111 while producing magnetic force) along fork hinge.Back-moving spring 25 is for driving fork 22 axially move down and slide block 26 is extracted from chute 111 along fork hinge.
Linkage 3 comprises connecting rod 31, left connecting bolt 33 and right connecting bolt 32.Connecting rod 31 is universal bearing connecting rod.The right-hand member of connecting rod 31 links together by the other end of right connecting bolt 32 and fork 12.The left end of connecting rod 31 links together by one end of left connecting bolt 33 and crank 53.The lower end of the other end of crank 53 and movable arbor 54 is fixed together.Movable arbor 54 vertically extends.
Tool rest 4 is the rotating shuttle seat in column Sewing machine with needle feed.Rotating shuttle seat is existing structure.Movable arbor 54 is rotationally connected with tool rest 4.
Cutting blade 5 is fixed in the upper end of movable arbor 54.Cutting blade 5 is the level of state.Cutting blade 5 is tulwar.
Cutter stator 6 is fixed in the upper end of tool rest 4.Cutter stator 6 is vertical state.Moving electric sheet 6 and cutter stator 5 along continuous straight runs distribute.
Referring to Fig. 2, cutting blade 5 is provided with " V " font moving knife blade 51.Moving knife blade 51 has three.Article three, moving knife blade 51 is respectively the first moving knife blade 511, the second moving knife blade 512 and the 3rd moving knife blade 513.The first moving knife blade 511 is arranged at the outer peripheral edges of conducting strip 5.The 3rd moving knife blade 513 and the second moving knife blade 512 be arranged on cutting blade 5 along the axial lower surface of movable arbor.The free end 5121 of the lower sword of the second moving knife blade from the distance along the axial upper surface 52 of movable arbor of cutting blade, be greater than the 3rd moving knife blade lower sword free end 5131 from cutting blade along the axial upper surface 52 of movable arbor.Can further improve versatility of the present utility model.
Referring to Fig. 3, cutter stator 6 is provided with stationary knife blade 61.Stationary knife blade 61 vertically extends.
Referring to Fig. 4 and in conjunction with Fig. 2 and Fig. 3, use makes, tool rest 4 is fixed on the downside of head base plate 7, mount pad 21 is fixed on the downside of head base plate 7, line shaft in trimming cam 11 and column Sewing machine with needle feed (is the lower shaft in column Sewing machine with needle feed in the present embodiment, in figure, do not draw) be fixed together coaxially, make the utility model integral body be positioned at the below of head of sewing machine 8.Lower shaft drives trimming cam 11 to rotate, during suture, under the effect of back-moving spring 25, slide block 26 is positioned at the outside of chute 111, thus cutting blade 5 remains static and with outer peripheral face towards the mode of cutter stator 6 with cutter stator 6 separately, sewing thread passes between cutter stator 6 and cutting blade 5.While wanting trimming, give electromagnet 23 power supplies, electromagnet 23 produces magnetic force is inserted in chute 111 slide block 26, chute 111 is converted to the rotation of trimming cam 11 the reciprocal translation of connecting rod 31, connecting rod 31 drives movable arbor 52 reciprocating rotations by bent axle 51, movable arbor 52 drives cutting blade 5 to reset and swings, moving knife blade 51 all catches on and drives sewing thread close towards stationary knife blade 61 each strand in sewing thread (having two strands at least), 61 pairs of sewing threads of moving knife blade 51 and stationary knife blade produce the effect of cutting and sawing simultaneously, thereby sewing thread is cut off.Complete after trimming action, the dead electricity by controlling electromagnet 23 constantly, make slide block 26 under the effect of back-moving spring 25 with resting on the place of not interfering suture operation after chute 111 separation.
Claims (9)
1. a column Sewing machine with needle feed thread cutting mechanism, it is characterized in that, comprise cutting blade, drive the connecting rod of cutting blade, the trimming cam of drive link, the cutter stator and clutch and the slide block that with cutting blade, coordinate, described connecting rod one end and described cutting blade link together, the other end and described slide block link together, described trimming cam is cylindrical cam, the side face of described trimming cam is provided with chute, described slide block can link together to clutch with described chute by described clutch, described column Sewing machine with needle feed is provided with line shaft, described trimming cam drives by described line shaft.
2. a kind of column Sewing machine with needle feed thread cutting mechanism according to claim 1, it is characterized in that, described clutch comprises mount pad, fork, electromagnet and back-moving spring, one end of described fork be provided with fork hinge and hinged with described mount pad by fork hinge, another is with together with described rod hinge connection; Described back-moving spring and electromagnet the two, one be used for driving fork to move axially along fork hinge and make that described slide block is inserted in described chute, another one is for driving fork move axially and described slide block is extracted in described chute along fork hinge.
3. a kind of column Sewing machine with needle feed thread cutting mechanism according to claim 2, it is characterized in that, described electromagnet is used for driving fork move axially and described slide block is inserted in described chute along fork hinge, and described back-moving spring is used for driving fork move axially and described slide block is extracted in described chute along fork hinge.
4. according to a kind of column Sewing machine with needle feed thread cutting mechanism described in claim 1 or 2 or 3, it is characterized in that, described line shaft is the lower shaft of column Sewing machine with needle feed.
5. a kind of column Sewing machine with needle feed thread cutting mechanism according to claim 4, it is characterized in that, also comprise knife rest and the movable arbor vertically extending, movable arbor is rotationally connected with described knife rest, described cutter stator is fixed in the upper end of described knife rest, described cutting blade and cutter stator along continuous straight runs distribute, described cutter stator is provided with stationary knife blade, described stationary knife blade vertically extends, the lower end of described movable arbor is connected with the crank that drives movable arbor to rotate, one end of described crank and described connecting rod is hingedly connected together, the other end of described connecting rod is connected with described trimming cam, described cutting blade is fixed in the upper end of described movable arbor, described cutting blade is provided with " V " font moving knife blade.
6. a kind of column Sewing machine with needle feed thread cutting mechanism according to claim 5, it is characterized in that, described cutting blade is tulwar, and the outer peripheral edges of described cutting blade are provided with described moving knife blade, described cutting blade along the axial lower surface of movable arbor, be provided with described moving knife blade.
7. according to a kind of column Sewing machine with needle feed thread cutting mechanism described in claim 1 or 2 or 3, it is characterized in that, also comprise knife rest and the movable arbor vertically extending, movable arbor is rotationally connected with described knife rest, described cutter stator is fixed in the upper end of described knife rest, described cutting blade and cutter stator along continuous straight runs distribute, described cutter stator is provided with stationary knife blade, described stationary knife blade vertically extends, the lower end of described movable arbor is connected with the crank that drives movable arbor to rotate, one end of described crank and described connecting rod is hingedly connected together, the other end of described connecting rod is connected with described trimming cam, described cutting blade is fixed in the upper end of described movable arbor, described cutting blade is provided with " V " font moving knife blade.
8. a kind of column Sewing machine with needle feed thread cutting mechanism according to claim 7, it is characterized in that, described cutting blade is tulwar, and the outer peripheral edges of described cutting blade are provided with described moving knife blade, described cutting blade along the axial lower surface of movable arbor, be provided with described moving knife blade.
9. a kind of column Sewing machine with needle feed thread cutting mechanism according to claim 7, is characterized in that, described knife rest is the rotating shuttle seat of column Sewing machine with needle feed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320871201.XU CN203729067U (en) | 2013-12-27 | 2013-12-27 | Thread trimming mechanism of vertical post needle feeding sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320871201.XU CN203729067U (en) | 2013-12-27 | 2013-12-27 | Thread trimming mechanism of vertical post needle feeding sewing machine |
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| Publication Number | Publication Date |
|---|---|
| CN203729067U true CN203729067U (en) | 2014-07-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320871201.XU Expired - Fee Related CN203729067U (en) | 2013-12-27 | 2013-12-27 | Thread trimming mechanism of vertical post needle feeding sewing machine |
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| CN (1) | CN203729067U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103726241A (en) * | 2013-12-27 | 2014-04-16 | 浙江飞凤缝制设备有限公司 | Trimming mechanism of pillar needle feeding sewing machine |
| CN108578226A (en) * | 2018-07-03 | 2018-09-28 | 苏州高新区人民医院 | A kind of thread embedding needle knife device |
| CN110241530A (en) * | 2018-03-08 | 2019-09-17 | 吴谨明 | The tangent mechanism of sewing machine |
| 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 |
| CN114318697A (en) * | 2021-12-31 | 2022-04-12 | 安徽杰羽制鞋机械科技有限公司 | Thin stand short thread end sewing machine |
-
2013
- 2013-12-27 CN CN201320871201.XU patent/CN203729067U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103726241A (en) * | 2013-12-27 | 2014-04-16 | 浙江飞凤缝制设备有限公司 | Trimming mechanism of pillar needle feeding sewing machine |
| CN110241530A (en) * | 2018-03-08 | 2019-09-17 | 吴谨明 | The tangent mechanism of sewing machine |
| CN108578226A (en) * | 2018-07-03 | 2018-09-28 | 苏州高新区人民医院 | A kind of thread embedding needle knife device |
| CN108578226B (en) * | 2018-07-03 | 2023-12-08 | 苏州高新区人民医院 | Thread embedding needle knife device |
| 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 |
| CN114318697A (en) * | 2021-12-31 | 2022-04-12 | 安徽杰羽制鞋机械科技有限公司 | Thin stand short thread end sewing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140723 Termination date: 20191227 |
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| CF01 | Termination of patent right due to non-payment of annual fee |