CN204000221U - A kind of sewing thread cutting mechanism - Google Patents
A kind of sewing thread cutting mechanism Download PDFInfo
- Publication number
- CN204000221U CN204000221U CN201420310723.7U CN201420310723U CN204000221U CN 204000221 U CN204000221 U CN 204000221U CN 201420310723 U CN201420310723 U CN 201420310723U CN 204000221 U CN204000221 U CN 204000221U
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- CN
- China
- Prior art keywords
- spacer pin
- sewing thread
- cutting mechanism
- motor
- connecting rod
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Abstract
The utility model discloses a kind of sewing thread cutting mechanism, comprise motor, the output of motor is connected with jointed gear unit by power transmission shaft, on jointed gear unit, be provided with the cutting knife of shearing sewing thread, the output of motor is fixedly connected with spacer pin, the both sides of spacer pin are provided with the limited post for controlling its rotational angle, are arranged with flexible buffer sleeve pipe on spacer pin.This sewing thread cutting mechanism by being arranged with gum sleeve on spacer pin; in the time that colliding, spacer pin and limited post cushion relativity power between the two; protection spacer pin; avoid rigid collision between the two to cause the rebound phenomenon of spacer pin certain angle; tangent line is effective, reduces maintenance cost.
Description
Technical field
The utility model relates to tailoring machinery, is specifically related to a kind of sewing thread cutting mechanism.
Background technology
Sewing machines 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.Sewing function is made the goods such as the fabrics such as cotton, fiber crops, silk, hair, artificial fibre and leather, plastics, paper, the stitching neat appearance of stitching out, smooth firm, and sewing velocity is fast, easy to use.Sewing thread conventionally needs artificial shearing, and the many employings after improvement manually or the gear connecting rod transmission cutting mechanism of electromagnetic switch control.In said mechanism, be all provided with the spacer pin and the limited block that is arranged on spacer pin both sides of the restriction cutting knife anglec of rotation, the material of spacer pin and limited block mostly is stainless steel, in large-scale production, cutting mechanism uses frequent, the repeatedly rigid collision of spacer pin and limited block can cause the damage of spacer pin, maintenance workload is large, and rigid collision can cause the resilience of spacer pin certain angle, affects sewing thread shear effect.Therefore, be necessary sewing thread cutting mechanism of the prior art to carry out architecture advances.
Utility model content
The purpose of this utility model is to overcome the defect existing in prior art, provide a kind of simple in structure, realize spacer pin buffering and protection, the effective sewing thread cutting mechanism of tangent line.
For realizing above-mentioned technique effect, the technical solution of the utility model is: a kind of sewing thread cutting mechanism, it is characterized in that, described cutting mechanism comprises motor, the output of described motor is connected with jointed gear unit by power transmission shaft, is provided with the cutting knife of shearing sewing thread on described jointed gear unit, and the output of described motor is fixedly connected with spacer pin, the both sides of described spacer pin are provided with the limited post for controlling its rotational angle, are arranged with flexible buffer sleeve pipe on described spacer pin.
In order to realize the control to the cutting knife anglec of rotation, preferred technical scheme is that described motor is stepper motor or servomotor.
On Sewing machines operating desk, mechanism is various, the drive unit of cutting knife is difficult to be arranged on the position apart from cutting knife closer distance, in order to realize transmission, and ensure the simple of transmission mechanism, maintain easily, preferred technical scheme is, described jointed gear unit comprises first connecting rod, one end of described first connecting rod is fixedly connected with described power transmission shaft, the other end of described first connecting rod is fixedly connected with one end of second connecting rod, the other end of described second connecting rod is connected with cutting knife, on near second connecting rod described cutting knife, be provided with through hole, described pin through described through hole and with sewing machine frame pin joint.
In order to make this sewing thread cutting mechanism stable, preferred technical scheme is that described motor is fixedly installed on the fixed disk being connected with sewing machine frame.
In order further to simplify the structure of sewing thread cutting mechanism, make limited post realize the spacing function with being fixedly connected with fixed disk simultaneously, preferred technical scheme is that described motor is fixedly connected with fixed disk by limited post.
Advantage of the present utility model and beneficial effect are:
This sewing thread cutting mechanism by being arranged with gum sleeve on spacer pin; in the time that colliding, spacer pin and limited post cushion relativity power between the two; protection spacer pin; avoid rigid collision between the two to cause the rebound phenomenon of spacer pin certain angle; tangent line is effective, reduces maintenance cost.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model sewing thread cutting mechanism;
Fig. 2 is the cross-sectional view of alignment pin and flexible buffer sleeve pipe in Fig. 1.
In figure: 1, motor; 2, power transmission shaft; 3, cutting knife; 4, spacer pin; 5, limited post; 6, flexible buffer sleeve pipe; 7, first connecting rod; 8, second connecting rod; 9, pin; 10, fixed disk.
Detailed description of the invention
Below in conjunction with drawings and Examples, detailed description of the invention of the present utility model is further described.Following examples are only for the technical solution of the utility model is more clearly described, and can not limit protection domain of the present utility model with this.
Embodiment 1
As depicted in figs. 1 and 2, embodiment is a kind of sewing thread cutting mechanism, comprise motor 1, the output of motor 1 is connected with jointed gear unit by power transmission shaft 2, on jointed gear unit, be provided with the cutting knife 3 of shearing sewing thread, the output of motor 1 is fixedly connected with spacer pin 4, and the both sides of spacer pin 4 are provided with the limited post 5 for controlling its rotational angle, are arranged with flexible buffer sleeve pipe 6 on spacer pin 4.
In the present embodiment, motor 1 is stepper motor or servomotor, can adopt like this startup of the circuit control motor with electromagnetic switch.
In the present embodiment, jointed gear unit comprises first connecting rod 7, one end of first connecting rod 7 is fixedly connected with described power transmission shaft 2, the other end of first connecting rod 7 is fixedly connected with one end of second connecting rod 8, the other end of second connecting rod 8 is connected with cutting knife 3, on near second connecting rod 8 cutting knife 3, be provided with through hole, pin 9 through through hole and with sewing machine frame pin joint.
In the present embodiment, motor 1 is fixedly installed on the fixed disk 10 being connected with sewing machine frame.
In the present embodiment, motor 1 is fixedly connected with fixed disk 10 by limited post 5.
Certainly, the material of flexible buffer sleeve pipe can be rubber or cloth etc., can play the effect to spacer pin buffering and protection.
The sewing thread cutting mechanism course of work is as follows:
Complete after sewing operation, operating personnel only need to hold sewing cloth, sewing thread is tightened, electric machine rotation, the limited post of spacer pin and a side collides, simultaneously, under the drive of linkage, cutting knife rotates to an angle and realizes cutting operation, and then motor rotates backward, the limited post of spacer pin and opposite side collides, and the output of stepper motor drives cutting knife in treating shearing condition by linkage.
The above is only preferred embodiment of the present utility model; should be understood that; for those skilled in the art; do not departing under the prerequisite of the utility model know-why; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (5)
1. a sewing thread cutting mechanism, it is characterized in that, described cutting mechanism comprises motor, the output of described motor is connected with jointed gear unit by power transmission shaft, on described jointed gear unit, be provided with the cutting knife of shearing sewing thread, the output of described motor is fixedly connected with spacer pin, and the both sides of described spacer pin are provided with the limited post for controlling its rotational angle, is arranged with flexible buffer sleeve pipe on described spacer pin.
2. sewing thread cutting mechanism according to claim 1, is characterized in that, described motor is stepper motor or servomotor.
3. sewing thread cutting mechanism according to claim 2, it is characterized in that, described jointed gear unit comprises first connecting rod, one end of described first connecting rod is fixedly connected with described power transmission shaft, the other end of described first connecting rod is fixedly connected with one end of second connecting rod, the other end of described second connecting rod is connected with cutting knife, near the second connecting rod described cutting knife, is provided with through hole, described pin through described through hole and with sewing machine frame pin joint.
4. sewing thread cutting mechanism according to claim 3, is characterized in that, described motor is fixedly installed on the fixed disk being connected with sewing machine frame.
5. sewing thread cutting mechanism according to claim 4, is characterized in that, described motor is fixedly connected with fixed disk by limited post.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420310723.7U CN204000221U (en) | 2014-06-11 | 2014-06-11 | A kind of sewing thread cutting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420310723.7U CN204000221U (en) | 2014-06-11 | 2014-06-11 | A kind of sewing thread cutting mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204000221U true CN204000221U (en) | 2014-12-10 |
Family
ID=52040249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420310723.7U Active CN204000221U (en) | 2014-06-11 | 2014-06-11 | A kind of sewing thread cutting mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204000221U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107620171A (en) * | 2017-11-02 | 2018-01-23 | 濮阳黑蚂蚁服饰有限公司 | A kind of overedger with automatic shearing the end of a thread |
-
2014
- 2014-06-11 CN CN201420310723.7U patent/CN204000221U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107620171A (en) * | 2017-11-02 | 2018-01-23 | 濮阳黑蚂蚁服饰有限公司 | A kind of overedger with automatic shearing the end of a thread |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |