CN201058912Y - Thread shearing device of sewing machine - Google Patents
Thread shearing device of sewing machine Download PDFInfo
- Publication number
- CN201058912Y CN201058912Y CNU2007200537318U CN200720053731U CN201058912Y CN 201058912 Y CN201058912 Y CN 201058912Y CN U2007200537318 U CNU2007200537318 U CN U2007200537318U CN 200720053731 U CN200720053731 U CN 200720053731U CN 201058912 Y CN201058912 Y CN 201058912Y
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- CN
- China
- Prior art keywords
- cutter shaft
- moving knife
- sewing
- knife
- 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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Abstract
The utility model discloses a thread-cutting device of a sewing machine, which is characterized in that: the device comprises a tool post, wherein, a cutter shaft is arranged through the tool post; two ends of the tool post are provided with shaft housings; one end of the tool post is provided with a stationery knife, and one end of the cutter shaft is provided with a moving knife, a sewing thread can pass through the space between the cutting edges of the stationery knife and the moving knife; the other end of the cutter shaft is linked with a cylinder which drives the cutter shaft to rotate through a linkage mechanism; the utility model can directly cut a sewing thread without bending the sewing thread, thereby reducing the cut sewing thread, correspondingly saving the sewing thread and cutting materials which are difficult to bend, such as an elastic band, a rubber band, etc; meanwhile, the utility model adopts compressed air as the driving force, thereby the cutting driving force is separated from the sewing force; the moving knife only actuates while cutting threads, so that the moving knife is avoided to operate in idle state for a long time, thereby reducing abrasion of blades, and greatly improving service life of the blades.
Description
Technical field
The utility model relates to a kind of cutting facility, particularly a kind of cutting facility that is applied on the Sewing machines.
Background technology
The existing utilization on power-actuated Sewing machines is provided with cutting facility, the trimming cutter of the cutting facility that uses can only be installed in a side of sewing line usually at present, this cutting facility need be drawn to trimming cutter place with sewing line by air intake device when trimming, therefore sewing line must crooked certain length could be cut off, thereby causes the waste of sewing line; And this cutting facility can't be sheared the material of relative difficult bendings such as elastic cord, elastic, shearing driving force simultaneously and making power is to derive from same drive unit, make the ceaselessly action together of moving knife and Sewing machines, and the moving knife most of the time is in the dry run state, make the moving knife wearing and tearing very fast, thus the service life of having reduced blade.
Summary of the invention
In order to overcome the deficiencies in the prior art, the utility model provides a kind of Sewing machines cutting facility, this cutting facility can directly be sheared sewing line, and can shear the material of relative difficult bendings such as elastic cord, elastic, shear driving force simultaneously and make power and separate, can avoid moving knife to be in the dry run state for a long time, to reduce the wearing and tearing of blade, the service life of improving blade.
The technical scheme that its technical problem that solves the utility model adopts is:
A kind of Sewing machines cutting facility, it is characterized in that this device comprises a tool rest, connect in the tool rest cutter shaft is installed, the two ends of cutter shaft are equipped with axle sleeve, one end of tool rest is equipped with stationary knife, end at cutter shaft is equipped with moving knife, and sewing line can be by the space between the blade of stationary knife and moving knife, and the other end of cutter shaft is connected with by coupling mechanism and drives the cylinder that cutter shaft rotates.
As the utility model preferred embodiment, described coupling mechanism comprises the cylinder driving lever that is fixed on the cylinder piston rod and is fixed on pivoted arm on the cutter shaft that described cylinder driving lever and pivoted arm are movably hinged.
Above-mentioned cylinder driving lever is provided with a draw-in groove, and pivoted arm is provided with the little axle that is installed in the draw-in groove.
The beneficial effects of the utility model are: shearing tool of the present utility model is vertically mounted on making on the direction of sewing line, sewing line vertically passes through between two blades, thereby the bending of sewing line can directly be sheared to sewing line, thereby can reduce the sewing line that is sheared, correspondingly save sewing line, and can shear the material of relative difficult bendings such as elastic cord, elastic; Adopt compressed air as its driving force simultaneously, thereby will shear driving force and make power and separate, moving knife only just moves when trimming, thereby can avoid moving knife to be in the dry run state for a long time, to reduce the wearing and tearing of blade, the service life of having improved blade greatly.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the utility model perspective exploded view.
The specific embodiment
With reference to Fig. 1, the disclosed a kind of Sewing machines cutting facility of the utility model, comprise a tool rest 1, in tool rest 1, be provided with axis hole 2, the two ends of axis hole 2 are equipped with axle sleeve 3, cutter shaft 4 is installed in the axis hole 2, the two ends of cutter shaft 4 are installed in the axle sleeve 3, end at tool rest 1 is equipped with stationary knife 7 by screw 5 and pin 6, end at cutter shaft 4 is equipped with moving knife 8, stationary knife 7 and moving knife 8 constitute the shearing tool of shearing sewing line, and sewing line can be by the space between the blade of stationary knife 7 and moving knife 8, and the other end of cutter shaft 4 is connected with by coupling mechanism and drives the cylinder 9 that cutter shaft 4 rotates.
As shown in the figure, coupling mechanism comprises the cylinder driving lever 11 on the piston rod 10 that is fixed on cylinder 9 and is fixed on pivoted arm 12 on the cutter shaft 4, cylinder driving lever 11 is provided with a draw-in groove 13, pivoted arm 12 is provided with little axle 14, little axle 14 is installed in the draw-in groove 13, thereby cylinder driving lever 11 and pivoted arm 12 are movably hinged.
Under normal circumstances, the last gas joint of cylinder 9 feeds compressed air, the venting of therapeutic method to keep the adverse qi flowing downward joint makes piston rod descending, power makes pivoted arm to lower swing by the cylinder driving lever, thereby make upwards swing of moving knife by cutter shaft, shearing tool is opened, and materials such as cloth, sewing line, elastic cord are vertical passing through between stationary knife and moving knife; Make when piece of cloth material and to finish, need trimming when (comprising elastic cord), feed compressed air for the therapeutic method to keep the adverse qi flowing downward joint of cylinder, last gas joint venting, piston rod is up, and power makes upwards swing of pivoted arm by cylinder driving lever box, thereby make moving knife to lower swing by cutter shaft, moving knife and stationary knife closure are cut off materials such as sewing line, elastic cord, promptly finish an actuation cycle this moment.
Claims (3)
1. Sewing machines cutting facility, it is characterized in that this device comprises a tool rest, connect in the tool rest cutter shaft is installed, the two ends of cutter shaft are equipped with axle sleeve, one end of tool rest is equipped with stationary knife, end at cutter shaft is equipped with moving knife, and sewing line can be by the space between the blade of stationary knife and moving knife, and the other end of cutter shaft is connected with by coupling mechanism and drives the cylinder that cutter shaft rotates.
2. a kind of Sewing machines cutting facility according to claim 1 is characterized in that described coupling mechanism comprises the cylinder driving lever that is fixed on the cylinder piston rod and is fixed on pivoted arm on the cutter shaft, and described cylinder driving lever and pivoted arm are movably hinged.
3. a kind of Sewing machines cutting facility according to claim 2 is characterized in that described cylinder driving lever is provided with a draw-in groove, and pivoted arm is provided with the little axle that is installed in the draw-in groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200537318U CN201058912Y (en) | 2007-06-30 | 2007-06-30 | Thread shearing device of sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200537318U CN201058912Y (en) | 2007-06-30 | 2007-06-30 | Thread shearing device of sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201058912Y true CN201058912Y (en) | 2008-05-14 |
Family
ID=39407377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200537318U Expired - Fee Related CN201058912Y (en) | 2007-06-30 | 2007-06-30 | Thread shearing device of sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201058912Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105133215A (en) * | 2015-09-19 | 2015-12-09 | 浙江中捷缝纫科技有限公司 | Thread cutting mechanism of sewing machine |
| CN105696206A (en) * | 2016-04-20 | 2016-06-22 | 浙江美机缝纫机有限公司 | Sewing machine with built-in automatic thread trimming mechanism and presser foot lifting mechanism |
-
2007
- 2007-06-30 CN CNU2007200537318U patent/CN201058912Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105133215A (en) * | 2015-09-19 | 2015-12-09 | 浙江中捷缝纫科技有限公司 | Thread cutting mechanism of sewing machine |
| CN105696206A (en) * | 2016-04-20 | 2016-06-22 | 浙江美机缝纫机有限公司 | Sewing machine with built-in automatic thread trimming mechanism and presser foot lifting mechanism |
| CN105696206B (en) * | 2016-04-20 | 2018-06-29 | 浙江美机缝纫机有限公司 | Has the sewing machine of built-in automatic shearing mechanism and foot lifting mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Zhongshan Bella Sewing Machine Co., Ltd. Assignor: Xie Xiaoling Contract fulfillment period: 2008.9.23 to 2015.9.23 Contract record no.: 2009440001219 Denomination of utility model: Thread shearing device of sewing machine Granted publication date: 20080514 License type: Exclusive license Record date: 20090820 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.9.23 TO 2015.9.23; CHANGE OF CONTRACT Name of requester: ZHONGSHAN BELLA SEWING MACHINE CO., LTD. Effective date: 20090820 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080514 Termination date: 20130630 |