CN202576880U - Thread cutting structure for sewing machine - Google Patents
Thread cutting structure for sewing machine Download PDFInfo
- Publication number
- CN202576880U CN202576880U CN 201220157674 CN201220157674U CN202576880U CN 202576880 U CN202576880 U CN 202576880U CN 201220157674 CN201220157674 CN 201220157674 CN 201220157674 U CN201220157674 U CN 201220157674U CN 202576880 U CN202576880 U CN 202576880U
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- CN
- China
- Prior art keywords
- connecting rod
- cam
- tangent line
- sewing machines
- thread cutting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Sewing Machines And Sewing (AREA)
Abstract
The utility model discloses a thread cutting structure for a sewing machine. The thread cutting structure comprises a needle plate, a fixed blade and a moving blade which can be matched with the fixed blade are arranged at the bottom of the needle plate, a thread cutting connection rod for driving the moving blade to cut threads is arranged in a base of the sewing machine, and a thread cutting cam for driving the thread cutting connection rod to move is arranged on the tail portion of the sewing machine. The moving blade is driven by the thread cutting connection rod to cut the threads, the thread cutting connection rod is driven by the thread cutting cam to move, and the thread cutting structure for the sewing machine has the advantages of being simple in structure and convenient to manufacture and install.
Description
Technical field
The utility model relates to a kind of Sewing machines, specifically a kind of line cutting structure that is used for Sewing machines.
Background technology
Existing sewing machine is equipped with the tangent mechanism of trimming, the pipeline purging structure of pipeline purging and the presser foot drive structure of presser foot lifter.In the prior art, tangent line, pipeline purging and presser foot lifter are driven by independent driving mechanisms respectively, so complex structure, manufacturing cost are high.
Summary of the invention
The utility model technical problem to be solved is to above-mentioned prior art present situation, and a kind of line cutting structure that is used for Sewing machines is provided, and has simple in structure, advantage of low manufacturing cost.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: a kind of line cutting structure that is used for Sewing machines, comprise needle plate, and the needle plate bottom is provided with cutter stator and the cutting blade that can match with cutter stator; In the support of Sewing machines, be provided with the tangent line connecting rod that drives said cutting blade tangent line, be provided with the tangential cam that is used to drive the tangent line link motion at the afterbody of Sewing machines.
For optimizing technique scheme, the utility model also comprises following improved technical scheme.
Above-mentioned cutting blade rotates and is arranged on the needle plate bottom, and cutting blade is connected through second cutter connecting rod that first cutter connecting rod and rotation are arranged on the needle plate bottom, and the movable end of second cutter connecting rod is connected with the tangent line connecting rod.
The afterbody of above-mentioned Sewing machines is set with mount pad, in mount pad, rotates and is provided with the driving shaft that is connected with motor; Tangential cam is fixed on the driving shaft.
Above-mentioned tangential cam is shaped on cam path, and mount pad rotates and is provided with the tangent line connecting plate, and a movable end of said tangent line connecting plate is connected with the tangent line connecting rod, and another movable end of tangent line connecting plate matches with cam path through roller.
Above-mentioned mount pad is fixed with inductor, and driving shaft is connected with the sensing chip that matches with inductor.
Compared with prior art, the cutting blade of the utility model drives trimming by the tangent line connecting rod, is provided with the tangential cam that is used to drive the tangent line link motion at the afterbody of Sewing machines, simple in structure, make easy for installation.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 2 is the internal structure sketch map of Fig. 1.
Fig. 3 is the rear structure sketch map of Fig. 2.
Fig. 4 is the perspective view of Fig. 2.
Fig. 5 is the assembling decomposing schematic representation of Fig. 4.
The specific embodiment
Embodiment to the utility model describes in further detail below in conjunction with accompanying drawing.
Fig. 1 is extremely shown in Figure 5 to be the structural representation of the utility model.
Reference numeral wherein is: motor 1; Driving shaft 11; Sensing chip 12; Mount pad 2; Inductor 21; Tangential cam 3; Cam path 3a; Tangent line connecting rod 31; Tangent line connecting plate 32; Pipeline purging cam 4; Pipeline purging connecting rod 41; Pipeline purging connecting plate 42; Pressing plate cam 5; Pressing plate connecting rod 51; Pressing plate connects support 52; Needle plate 6; Cutter stator 61; Cutting blade 62; First cutter connecting rod 63; Second cutter connecting rod 64; Pipeline purging bar 7; Pipeline purging bar mounting bracket 71; Pipeline purging supporting plate 72; Pipeline purging drive plate 73.
The Sewing machines of the utility model has the driving cam that is used for Sewing machines, through line cutting structure, pipeline purging structure and the pressure plate structure of driving cam drive.
Driving cam comprises the tangential cam 3 that is used to drive tangent line connecting rod 31, is used to drive the pipeline purging cam 4 and the pressing plate cam 5 that is used to drive pressing plate connecting rod 51 of pipeline purging connecting rod 41.Tangential cam 3, pipeline purging cam 4 and pressing plate cam 5 are driven by same motor 1.
As shown in Figure 1, be set with mount pad 2 at the afterbody of Sewing machines, motor 1 is fixed in mount pad 2 one sides, rotates in mount pad 2 that being provided with links to each other with motor 1 is connected to driving shaft 11.
Be fixed with inductor 21 on the mount pad 2, driving shaft 11 is connected with the sensing chip 12 that matches with inductor 21.
In the present embodiment, tangential cam 3, pipeline purging cam 4 and pressing plate cam 5 are fixedly installed on the driving shaft 11, and tangential cam 3, pipeline purging cam 4 and pressing plate cam 5 are fixedly connected integral body of formation side by side.Driving cam also can have other embodiment; For example any or two in tangential cam 3, pipeline purging cam 4 and the pressing plate cam 5 is arranged on the driving shaft 11; Remaining cam is arranged on the mount pad 2 through rotating shaft, and through transmission mechanism and driving shaft 11 interlocks.
To shown in Figure 5, tangential cam 3 is shaped on cam path 3a like Fig. 2.Mount pad 2 rotates and is provided with tangent line connecting plate 32.A movable end of tangent line connecting plate 32 is connected with tangent line connecting rod 31, and another movable end of tangent line connecting plate 32 matches with cam path 3a through roller.
On mount pad 2, rotate and be provided with pipeline purging connecting plate 42.A movable end of pipeline purging connecting plate 42 is connected with pipeline purging connecting rod 41, and another movable end of pipeline purging connecting plate 42 matches with pipeline purging cam 4.
Rotate on the mount pad 2 and be provided with pressing plate connection support 52.The movable end that pressing plate connects support 52 is connected with pressing plate connecting rod 51, and another movable end that pressing plate connects support 52 matches with pressing plate cam 5.
As shown in Figure 5, the line cutting structure of Sewing machines has needle plate 6.Be provided with cutter stator 61 and the cutting blade 62 that can match with cutter stator 61 in the bottom of needle plate 6.The tangent line connecting rod 31 that drives cutting blade 62 tangent lines is arranged in the support of Sewing machines.
In the present embodiment, cutting blade 62 rotates and is arranged on needle plate 6 bottoms, and cutting blade 62 is connected with second cutter connecting rod 64 that rotation is arranged on needle plate 6 bottoms through first cutter connecting rod 63, and second cutter connecting rod 64 is connected with tangent line connecting rod 31 through connector.When tangent line connecting rod 31 motion, cutting blade 62 tangent line that just can match with cutter stator 61.
Tangential cam 3 drives 32 motions of tangent line connecting plate through cam path 3a, and tangent line connecting plate 32 drives tangent line connecting rod 31 motion tangent lines.
The pipeline purging structure of Sewing machines has the pipeline purging bar 7 that can rotate pipeline purging, and pipeline purging bar 7 is after sewing finishes, and 7 motions of pipeline purging bar are pulled out one section surplus with suture, can eliminate the tension force on the suture.
Pipeline purging connecting rod 41 is installed in the head of Sewing machines, is provided with the pipeline purging cam 4 that is used to drive 41 motions of pipeline purging connecting rod at the afterbody of Sewing machines, and when pipeline purging cam 4 rotation works, pipeline purging connecting rod 41 can drive 7 pipeline purgings of pipeline purging bar.
As shown in Figure 2; Pipeline purging bar 7 rotates through pipeline purging bar mounting bracket 71 and is arranged on the head of Sewing machines; On the head of Sewing machines, rotate and be provided with pipeline purging supporting plate 72, an end of pipeline purging supporting plate 72 is connected with pipeline purging connecting rod 41, and the other end is connected with pipeline purging bar 7 through pipeline purging drive plate 73.
Tangential cam 3, pipeline purging cam 4 and pressing plate cam 5 all have same motor 1 to drive, and can realize thread cutting action, pipeline purging action and presser feet action easily.
The most preferred embodiment of the utility model is illustrated, and various variations of being made by those of ordinary skills or remodeling can not break away from the scope of the utility model.
Claims (5)
1. a line cutting structure that is used for Sewing machines comprises needle plate (6), it is characterized in that: the cutting blade (62) that described needle plate (6) bottom is provided with cutter stator (61) and can matches with cutter stator (61); In the support of Sewing machines, be provided with the tangent line connecting rod (31) that drives said cutting blade (62) tangent line, be provided with the tangential cam (3) that is used to drive tangent line connecting rod (31) motion at the afterbody of Sewing machines.
2. a kind of line cutting structure that is used for Sewing machines according to claim 2; It is characterized in that: described cutting blade (62) rotates and is arranged on needle plate (6) bottom; Cutting blade (62) is connected through second cutter connecting rod (64) that first cutter connecting rod (63) and rotation are arranged on needle plate (6) bottom, and the movable end of second cutter connecting rod (64) is connected with described tangent line connecting rod (31).
3. a kind of line cutting structure that is used for Sewing machines according to claim 1 and 2 is characterized in that: the afterbody of said Sewing machines is set with mount pad (2), in described mount pad (2), rotates and is provided with the driving shaft (11) that is connected with motor (1); Described tangential cam (3) is fixed on the driving shaft (11).
4. a kind of line cutting structure that is used for Sewing machines according to claim 3; It is characterized in that: described tangential cam (3) is shaped on cam path (3a); Described mount pad (2) rotates and is provided with tangent line connecting plate (32); A movable end of said tangent line connecting plate (32) is connected with described tangent line connecting rod (31), and another movable end of tangent line connecting plate (32) matches with described cam path (3a) through roller.
5. a kind of line cutting structure that is used for Sewing machines according to claim 4 is characterized in that: described mount pad (2) is fixed with inductor (21), and described driving shaft (11) is connected with the sensing chip (12) that matches with inductor (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220157674 CN202576880U (en) | 2012-04-16 | 2012-04-16 | Thread cutting structure for sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220157674 CN202576880U (en) | 2012-04-16 | 2012-04-16 | Thread cutting structure for sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202576880U true CN202576880U (en) | 2012-12-05 |
Family
ID=47246309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220157674 Expired - Fee Related CN202576880U (en) | 2012-04-16 | 2012-04-16 | Thread cutting structure for sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202576880U (en) |
-
2012
- 2012-04-16 CN CN 201220157674 patent/CN202576880U/en not_active Expired - Fee Related
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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: 20121205 Termination date: 20180416 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |