CN105113147B - A kind of thread cutting mechanism of sewing machine - Google Patents
A kind of thread cutting mechanism of sewing machine Download PDFInfo
- Publication number
- CN105113147B CN105113147B CN201510508238.XA CN201510508238A CN105113147B CN 105113147 B CN105113147 B CN 105113147B CN 201510508238 A CN201510508238 A CN 201510508238A CN 105113147 B CN105113147 B CN 105113147B
- Authority
- CN
- China
- Prior art keywords
- knife
- sewing machine
- straight
- rotary knife
- straight knife
- 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.)
- Active
Links
Landscapes
- Sewing Machines And Sewing (AREA)
Abstract
The invention provides a kind of thread cutting mechanism of sewing machine, belong to field of mechanical technique.It solves the problem of cutting that bottom line mechanism is poor for applicability, can not be controlled to bottom line surplus of existing sewing machine.The thread cutting mechanism of this sewing machine includes the pedestal that is fixed in the platen of sewing machine and is arranged at straight knife on pedestal and in the form of sheets, straight knife sets and can moved up and down along with the vertical direction of platen, the outside of straight knife is provided with rotary knife, rotary knife is hinged with pedestal, straight knife upper end is formed with cutting edge, cutting edge is formed with rotary knife, the cutting edge of rotary knife is located at the top of the cutting edge of straight knife, this, which cuts bottom line mechanism, also includes a driving structure, and straight knife can upwards be moved along vertical direction under the drive of the driving structure and rotary knife can be rotated around pin joint.The thread cutting mechanism of this sewing machine has the advantages that applicability is wide, bottom line surplus can be controlled.
Description
Technical field
The invention belongs to field of mechanical technique, it is related to a kind of sewing machine, more particularly to a kind of thread cutting mechanism of sewing machine.
Background technology
Sewing machine is widely used in the industries such as clothing, weaving, it is necessary to by suture after sewing machine is sutured to cloth
Line is cut.In conventional sewing machine in the early time, because automaticity is not high, special thread cutting mechanism is not configured with mostly, when
Cloth sewing is finished, and is all manually cut line using instruments such as scissors by user.And with the continuous progress of science and technology, work
The automaticity more and more higher of industry sewing machine, existing industrial sewing machine is substantially all corresponding configuration automatic shearing mechanism.
As Chinese patent discloses a kind of thread cutting mechanism [patent No. of eyelet buttonhole sewing machine：ZL201120467104.5；Bulletin
Number：CN202347263U], it includes cloth pushing table, and assembly cavity, the upper end of each assembly cavity are respectively arranged with the both sides of cloth pushing table
Face, which is separately installed between top panel, top panel, is arranged side by side the two pieces of cloth that can be separated from each other pressing plates, piece of cloth pressure therein
Plate is fixed with needle plate, and stationary knife component and moving knife component are provided between needle plate and cloth pressing plate, and stationary knife component is installed including stationary knife
Arm, the end of stationary knife installing arm is fixed with ledger-plate and line guide plate, is fixedly arranged in the middle of wire-gripping wire-separating device；Moving knife component includes turning
The dynamic moving knife arm being arranged on cloth pressing plate, the end of moving knife arm is fixed with cutting blade and the gear line device being fixed on the inside of cutting blade,
The middle part of moving knife arm rotates the wire-blocking board being provided with for opening clamp deconcentrator, is provided with and matches with wire-blocking board on moving knife arm
The spring of conjunction, the thread cutting mechanism cooperates to catch bottom line and sheared by stationary knife component and moving knife component.
But, still there is some shortcomings part in the thread cutting mechanism of above-mentioned eyelet buttonhole sewing machine.It is fixed in the thread cutting mechanism
It is in horizontally disposed that knife assembly and moving knife component, which are relative to cloth pushing table, and the bottom line on the fabric after sewing well is also slightly
Bend and generally relative to cloth pushing table in horizontal, also mean that the stationary knife component and movable cutter set utilized every time in the thread cutting mechanism
When part is sheared to bottom line, the position of shearing and shearing displacement are all changeless, although can so be ensured with batch fabric
The accurate control of bottom line surplus, but the requirement of different fabrics or user to different bottom line surpluses can not be met, therefore cause
Applicability is relatively simple.
The content of the invention
The purpose of the present invention is in view of the above-mentioned problems existing in the prior art, it is proposed that one kind disclosure satisfy that more than different bottom lines
The thread cutting mechanism of the higher sewing machine of amount, applicability.
The purpose of the present invention can be realized by following technical proposal：
A kind of thread cutting mechanism of sewing machine, it is characterised in that including the pedestal being fixed in the platen of sewing machine and set
Straight knife on pedestal and in the form of sheets is placed in, described straight knife sets and can moved up and down along with the vertical direction of platen, described
The outside of straight knife be provided with rotary knife, described rotary knife is hinged with pedestal, and described straight knife upper end is formed with cutting edge, described rotation
Cutting edge is formed with knife, the cutting edge of described rotary knife is located at the top of the cutting edge of straight knife, and this, which cuts bottom line mechanism, also includes a driving
Structure, described straight knife can upwards be moved along vertical direction under the drive of the driving structure and described rotary knife can be around
Pin joint rotation.
The thread cutting mechanism of this sewing machine is fixed in the platen of sewing machine by pedestal, (be located at sewing-machine foot just under
Side, is mainly used in cutting the bottom line of the fabric after the completion of sewing, certainly due to can also use cored wire in actually sewing, therefore
This thread cutting mechanism according to demand can also cut cored wire while bottom line is cut.) have relative to pedestal vertical direction one can water
The dynamic seam platform of translation.Sewing is moved after being fixed by presser feet with seam platform.After sewing terminates, it can control to stitch platform by automatically controlled
Relative to the relative position of trimming edge, so as to reach the purpose of control stub.
When needing trimming, straight knife is controlled to move up by driving structure, while control rotary knife to be rotated around pin joint, by
In being formed with cutting edge on rotary knife, thus rotary knife the line of fabric bottom can be hooked into rotary knife during the rotation cutting edge in, separately
Outside, because the upper end of straight knife is formed with cutting edge, the cutting edge of rotary knife is located at the top of straight knife cutting edge, therefore is moved upwards simultaneously in straight knife
When being in contact with the bottom line being hooked into (bottom line) rotary knife, bottom line can just be cut by the cooperation of straight knife and the cutting edge of rotary knife
Fall.Because straight knife and rotary knife are all that edge is set with the vertical direction of platen, i.e., thread trimmer and sewing are vertical relations, then
It is also progress trimming from vertical direction in trimming, and because bottom line is along with platen horizontal direction and in part bending,
Therefore fabric movement is driven to control the line of fabric bottom and the phase between straight knife and rotary knife by the presser feet of mobile sewing machine
To position, relative position is different, and straight knife is with expecting that the stub that bottom leaves also just is differed behind rotary knife trimming, so as to realize
Control to fabric bottom line head length.The benefit of control the end of a thread length has：A, when cutting short the end of a thread, can save artificial together
The process for trimming the end of a thread, reduces cost of labor, improves operating efficiency；B, when needing secure grip line tail, can exist as needed
It is controlled by program, suitably stays long the end of a thread, it is to avoid be excessive to waste, saves suture cost.
Bottom line mechanism is cut in above-mentioned sewing machine, and bar hole, described rotation are axially arranged with along it on described straight knife
Knife is V-shaped, and the cutting edge of described rotary knife is located at the side of rotary knife upper end, and the middle part of described rotary knife is located at bar hole, described
Straight knife and rotary knife sequentially passed through by one in the middle part of rotary knife, the bar hole on straight knife and penetrate the positioning screw of pedestal and connect
In on pedestal.
Positioning screw sequentially passes through rotary knife middle part, the bar hole on straight knife and penetrated in pedestal, and thus straight knife connects with rotary knife
It is connected on pedestal, the bar hole on straight knife enables straight knife to be moved up and down relative to pedestal.And bar shaped will be located in the middle part of rotary knife
Be connected at hole and again by positioning screw on pedestal, can so make the distance between rotary knife and straight knife closer to, be connected more
Step up close, can ensure that trimming is smooth well.
In the thread cutting mechanism of above-mentioned sewing machine, described driving structure is fixed in the platen of sewing machine including one
Drive cylinder, one side of described straight knife has forms a link slot, institute between two projections for protruding from pedestal side, two projections
The rotary knife lower end stated is connected with the end insertion link slot of pin and pin, and described drive cylinder is located at the lower section of straight knife,
Straight knife can move up and down along rectilinear direction under the drive of the piston rod of drive cylinder.
Need on trimming, the piston rod of drive cylinder drives straight knife to be moved upwards along rectilinear direction, due to the one of straight knife
While having link slot, the lower end of rotary knife is connected with pin, and the end of pin is inserted into link slot, then when straight knife along straight line to
During upper motion, the lower end of rotary knife can be driven to move downward simultaneously by the cooperation of pin and link slot, due to being cut with scissors in the middle part of rotary knife
Connect, then rotary knife will rotate, i.e., drive cylinder can drive straight knife to move upwards simultaneously and rotary knife is rotated.
Rotary knife hooks into bottom line in the cutting edge on rotary knife upper end one side in rotation process, while the mistake risen in straight knife
The cutting edge of straight knife upper end can cut the line being hooked into rotary knife cutting edge in journey.
In the thread cutting mechanism of above-mentioned sewing machine, the lower section of described straight knife is provided with drive rod, described drive rod
Middle part is articulated with pedestal, and one end of described drive rod is resisted against the lower end of straight knife, the other end of described drive rod and drive
The piston rod of cylinder of taking offence is connected.
Drive rod is located at below straight knife, and is hinged in the middle part of drive rod on pedestal, and one end of drive rod is resisted against straight knife
Lower end, the other end is connected with the piston rod of drive cylinder, so can drive driving when the piston rod retraction of drive cylinder
One end of bar is moved down, then drive rod will rotate around pin joint, and the other end of drive rod will be upturned
And be lifted up straight knife.
In the thread cutting mechanism of above-mentioned sewing machine, the end of the piston rod of described drive cylinder is connected with horizontally disposed
Pressing plate, described pressing plate one end is resisted against on the end of drive rod, also solid at drive cylinder in the platen of sewing machine
Surely have and guide rod is fixed with guide holder, described guide holder, described guide rod passes through the middle part of pressing plate.
Because straight knife is to push by the piston rod of drive cylinder band dynamic pressure plate and force drive rod to upwarp to push up
, therefore using guide rod through the middle part of pressing plate, pressing plate can be made operationally more to stablize, and compared to pressing plate two ends
For stress, through pressing plate the active force put on pressing plate can also be made average in the middle part of guide rod.
In the thread cutting mechanism of above-mentioned sewing machine, projection is respectively provided with the upside of the two ends of described drive rod, and two convex
Act the lower section born against in straight knife and pressing plate.
Due to the piston rod of drive cylinder be band dynamic pressure plate move downward force drive rod to stick up promote straight knife to
Upper movement, then set raised on the upside of the two ends of drive rod, two projections bear against the lower section in straight knife and pressing plate, so
Can be to be respectively formed the way of contact a little with line between drive rod and straight knife and drive rod so that drive rod can preferably receive pressure
The pressure of plate simultaneously preferably pushes up straight knife.
In the thread cutting mechanism of above-mentioned sewing machine, as another situation, described driving structure includes being fixed on seam
The drive cylinder one and drive cylinder two threaded in machine bench, the piston rod of described drive cylinder one are resisted against under straight knife
End, the described piston rod of drive cylinder two is connected with the lower end of rotary knife.
When needing trimming, the piston rod ejection of drive cylinder two makes the lower end of rotary knife move upwards, due to being cut with scissors in the middle part of rotary knife
Connect, therefore rotary knife lower end can produce when moving upwards and be rotated around pin joint, the cutting edge of rotary knife upper end can be by rotation process
Line is hooked into cutting edge, and the piston rod ejection of drive cylinder one makes straight knife move upwards while rotary knife is rotated, straight knife upper end
Cutting edge can cut the line being hooked into rotary knife cutting edge in upward motion.
In the thread cutting mechanism of above-mentioned sewing machine, transversely provided with positioning straight trough, described positioning on described pedestal
The Flexible Reset piece of strip is provided with straight trough, described Flexible Reset piece bending is V-shaped, and one end of described Flexible Reset piece is pushed up
On the upside cell wall for leaning against positioning straight trough, described straight knife has reseting groove, and the other end of described Flexible Reset piece is located at again
Position groove is interior and is pressed on the downside cell wall of reseting groove.
On the upside cell wall that positioning straight trough is acted against due to one end of Flexible Reset piece, the other end is located at the reseting groove of straight knife
It is interior and be pressed on the downside cell wall of reseting groove, therefore Flexible Reset sector-meeting produces a reset force moved downward to straight knife.When
After bottom line has been cut, driving structure is no longer controlled to straight knife, then straight knife can be under the elastic force effect of Flexible Reset piece downwards
Reset, and straight knife can drive the lower end of rotary knife together to move down during downward reset, and rotary knife is also resetted in the lump.
In the thread cutting mechanism of above-mentioned sewing machine, spring bearer plate, described bullet are also arranged with described positioning screw
Spring pressing plate is V-shaped, and spring bearer plate is located at the outside of rotary knife, and the lower end of described spring bearer plate has recess and recess is stuck in pin
On, the upper end top pressure of described spring bearer plate is on the rotary knife of rotary knife and the outside that makes rotary knife be attached to straight knife.
It is compressed on using spring bearer plate on rotary knife, one can be produced to rotary knife rotary knife is pressed on the outside of straight knife all the time
Active force, so can make the gap between rotary knife and straight knife diminish, it is ensured that more smooth during trimming.
Compared with prior art, platen of the thread cutting mechanism of this sewing machine by straight knife with rotary knife relative to sewing machine is set vertically
Put, the shearing of vertical direction formd to the fabric that finishes of sewing, by sewing-machine foot to the movement of fabric come change with directly
Relative position between knife and rotary knife, the different so straight knives of relative position have been cut with rotary knife expects the length of bottom the end of a thread just behind line
Differ, so as to also be achieved that the control to fabric bottom line head length, meet different fabrics or user to more than bottom line
The different demands of amount, improve the applicability for originally cutting bottom line mechanism, with higher practical value.
Brief description of the drawings
Fig. 1 is that the thread cutting mechanism of this sewing machine is arranged at the schematic diagram in the platen of sewing machine.
Fig. 2 is the schematic diagram of the thread cutting mechanism of this sewing machine.
Fig. 3 is the optical cable of the thread cutting mechanism of this sewing machine.
Fig. 4 be this sewing machine thread cutting mechanism in straight knife schematic diagram.
In figure, 1, platen；2nd, pedestal；2a, positioning straight trough；3rd, straight knife；3a, bar hole；3b, projection；3c, link slot；3d、
Reseting groove；4th, rotary knife；5th, positioning screw；6th, drive cylinder；7th, pin；8th, drive rod；8a, projection；9th, pressing plate；10th, guide holder；
10a, guide rod；11st, Flexible Reset piece；12nd, spring bearer plate；12a, recess；13rd, stop screw.
Embodiment
The following is specific embodiment of the invention and with reference to accompanying drawing, technical scheme is further described,
But the present invention is not limited to these embodiments.
Embodiment one
As Figure 1-Figure 4, a kind of thread cutting mechanism of sewing machine, including the pedestal 2 being fixed in the platen 1 of sewing machine with
And be arranged at straight knife 3 on pedestal 2 and in the form of sheets and rotary knife 4, straight knife 3 along with the vertical direction of platen 1 set and can above and below
Motion, the upper end of straight knife 3 is formed with cutting edge.It is axially arranged with bar hole 3a along it on straight knife 3, straight knife 3 passes through bar hole by one
3a simultaneously penetrates the positioning screw 5 of pedestal 2 and is fixed on pedestal 2.Some stop screws 13 are also associated with substrate, straight knife 3
The gap that one rim portion is stuck between stop screw 13 and pedestal 2 and between stop screw 13 and pedestal 2 is slightly larger than the thickness of straight knife 3
Degree.
As shown in figs 2-4, it is horizontally arranged with positioning straight trough 2a, positioning straight trough 2a and is provided with strip on pedestal 2
Flexible Reset piece 11, Flexible Reset piece 11 bends V-shaped, and one side of straight knife 3 has reseting groove 3d, one end of Flexible Reset piece 11
On the upside cell wall for acting against positioning straight trough 2a, the other end of Flexible Reset piece 11 is located in the reseting groove 3d of straight knife 3, and resets
The other end of flexure strip 11 is pressed on reseting groove 3d downside cell wall, straight knife 3 is had the trend moved down all the time.
As shown in Figures 2 and 3, rotary knife 4 is V-shaped, and rotary knife 4 is located at the outside of straight knife 3, and the middle part of rotary knife 4 is located at straight knife 3
At bar hole 3a, positioning screw 5 sequentially passes through the middle part of rotary knife 4, the bar hole 3a of straight knife 3 from outside and penetrated in pedestal 2.Rotary knife
4 upper end side has cutting edge, and the cutting edge of rotary knife 4 is located at the top of the cutting edge of straight knife 3.One side of straight knife 3, which has, protrudes from base
A link slot 3c is formed between two projections 3b, two projection 3b of seat 2, the lower end of rotary knife 4 is located at link slot 3c, rotary knife
4 lower end is connected with a pin 7, and the end of pin 7 is penetrated in link slot 3c.
Spring pressuring plate is also arranged with positioning screw 5, spring pressuring plate is located at the outside of rotary knife 4, and spring bearer plate 12 is V-shaped,
There is recess 12a, the recess 12a of the lower end of spring bearer plate 12 to be stuck on pin 7 for the lower end of spring bearer plate 12, spring bearer plate 12 it is upper
The outside held top pressure on rotary knife 4 and make rotary knife 4 be attached to straight knife 3.
As shown in Fig. 2 the bottom line mechanism of cutting of this sewing machine also includes a driving structure, the driving structure includes being fixed on seam
Drive rod 8 is additionally provided with the drive cylinder 6 threaded in the platen 1 of machine, pedestal 2, drive rod 8 is located at the lower section of straight knife 3, drive cylinder
The end of 6 piston rod is connected with pressing plate 9, and the middle part of drive rod 8 is hinged on the base 2, and the two ends of drive rod 8 are born against
In the bottom of straight knife 3 and pressing plate 9.In the present embodiment, raised 8a, two projection 8a are respectively provided with the upside of the two ends of drive rod 8
Highest point leant respectively with the bottom of straight knife 3 and the bottom of the one end of pressing plate 9.It is further fixed in the platen 1 of sewing machine
Guide holder 10, guide holder 10 is connected with guide rod 10a on drive cylinder 6, guide holder 10, and guide rod 10a passes through pressing plate 9
Middle part.
The bottom line mechanism of cutting of this sewing machine is fixed in the platen 1 of sewing machine by pedestal 2, just to being arranged on sewing machine pressure
The underface of pin, is mainly used for cutting the line of the fabric bottom after the completion of sewing.
When needing to cut the line of fabric bottom using this thread cutting mechanism after fabric sewing is finished, it is only necessary to control driving
The piston rod of cylinder 6 is bounced back downwards, and the piston rod band dynamic pressure plate 9 of drive cylinder 6 is together moved down along guide rod 10a.Pressure
One end of plate 9 is resisted against the upside of the one end of drive rod 8, therefore this end of drive rod 8 can be pressed downward by pressing plate 9, due to drive rod 8
Middle part be hinged on the base 2, the other end of drive rod 8 is resisted against the lower section of straight knife 3, then when pressing plate 9 pushes drive rod 8
Drive rod 8 can be made to be rotated around pin joint, while making the other end of drive rod 8 push up straight knife 3.
Straight knife 3 is driven the promotion of bar 8 and moved up, and the link slot 3c on straight knife 3 passes through pin 7 and rotary knife 4
Lower end links together, then driven when straight knife 3 is moved up by pin 7 and link slot 3c credit union of matching somebody with somebody under rotary knife 4
End is together moved up.The middle part of rotary knife 4 is hinged, therefore rotary knife 4 can rotate around pin joint, and the upper end of rotary knife 4 can be downward
Swing, during to lower swing, the cutting edge of the upper end of rotary knife 4 can hook into the line of fabric bottom in cutting edge, then in straight knife 3
During rising, the continuous cutting edge to rotary knife 4 of cutting edge meeting of straight knife 3 is close, until the cutting edge of straight knife 3 will be hooked into rotary knife 4
Line in cutting edge is cut.Afterwards, the piston rod band dynamic pressure plate 9 of drive cylinder 6 together resets upwards, and pressing plate 9 is to drive rod 8 and directly
The formation compacting of knife 3, now straight knife 3 is acted on by the elastic force of Flexible Reset piece 11 and resetted downwards, while driving the reversion of rotary knife 4 multiple
Position.
The line on fabric is retained in after being finished due to fabric sewing usually in bending and along the horizontal direction of platen 1,
And the straight knife 3 of the thread cutting mechanism in the application and rotary knife 4 are set along the vertical direction of platen 1, therefore when straight knife 3 is cut
When position on bottom line is different, the length that the line come is left behind on fabric is just different, i.e. the bottom line mechanism of cutting of this sewing machine can be with
Meet the line surplus of different fabrics, although this thread cutting mechanism is integrally fixed in the platen 1 of sewing machine, but can be by sewing
The presser feet of machine changes the relative position between fabric and straight knife 3 and rotary knife 4 to control to move fabric, so as to control fabric bottom
Position of line when cutting, reach the control to the end of a thread length of fabric bottom, the benefit of control the end of a thread length has：A, when cutting short
During the end of a thread, the process that can save artificial trimming the end of a thread together reduces cost of labor, improves operating efficiency；B, when need safe
When holding line tail, it can in a program be controlled by as needed, suitably stay long the end of a thread, it is to avoid be excessive to waste, save suture cost.
Embodiment two
The structure and principle of the present embodiment be the same as Example one are essentially identical, and difference is：Driving in the present embodiment
Structure includes the drive cylinder one and drive cylinder two that are fixed in sewing machine table 1, the piston rod of drive cylinder one against
In the lower end of straight knife 3, the piston rod of drive cylinder two is connected with the lower end of rotary knife 4.When needing trimming, the work of drive cylinder two
Stopper rod ejection makes the lower end of rotary knife 4 move upwards, because the middle part of rotary knife 4 is hinged, therefore the lower end of rotary knife 4 can be produced when moving upwards
Rotated around pin joint, the cutting edge of the upper end of rotary knife 4 can hook into bottom line in cutting edge in rotation process, in the same of the rotation of rotary knife 4
When drive cylinder one piston rod ejection make the motion upwards of straight knife 3, the cutting edge of the upper end of straight knife 3 will can be hooked in upward motion
The line entered in the cutting edge of rotary knife 4 is cut.
Specific embodiment described herein is only to spirit explanation for example of the invention.Technology neck belonging to of the invention
The technical staff in domain can be made various modifications or supplement to described specific embodiment or be replaced using similar mode
Generation, but without departing from the spiritual of the present invention or surmount scope defined in appended claims.
Claims (9)
1. a kind of thread cutting mechanism of sewing machine, it is characterised in that including the pedestal (2) that is fixed in the platen (1) of sewing machine with
And straight knife (3) on pedestal (2) and in the form of sheets is arranged at, described straight knife (3) is set and energy along with the vertical direction of platen (1)
Enough to move up and down, being sticked on the outside of described straight knife (3) has rotary knife (4), and described rotary knife (4) is hinged with pedestal (2), described
Straight knife (3) upper end be formed with cutting edge, described rotary knife (4) and be formed with cutting edge, the cutting edge of described rotary knife (4) is located at straight knife
(3) top of cutting edge, the thread cutting mechanism also includes a driving structure, the described straight knife (3) under the drive of the driving structure
It can upwards be moved along vertical direction and described rotary knife (4) can be rotated around pin joint, along it on described straight knife (3)
It is axially arranged with bar hole (3a), the cutting edge of described rotary knife (4) is located in the side of rotary knife (4) upper end, described rotary knife (4)
Portion is located at bar hole (3a) place, and described straight knife (3) and rotary knife (4) is sequentially passed through in the middle part of rotary knife (4) by one, straight knife (3)
On bar hole (3a) and penetrate the positioning screw (5) of pedestal (2) and be connected on pedestal (2).
2. the thread cutting mechanism of sewing machine according to claim 1, it is characterised in that described rotary knife (4) is V-shaped.
3. the thread cutting mechanism of sewing machine according to claim 2, it is characterised in that described driving structure includes one and fixed
Drive cylinder (6) in the platen (1) of sewing machine, one side of described straight knife (3) has two to protrude from pedestal (2) side
A link slot (3c) is formed between projection (3b), two projections (3b), the lower end of described rotary knife (4) is connected with pin (7) and pin
Follow closely in the end insertion link slot (3c) of (7), described drive cylinder (6) is located at the lower section of straight knife (3), in drive cylinder (6)
Piston rod drive under straight knife (3) can be moved up and down along rectilinear direction.
4. the thread cutting mechanism of sewing machine according to claim 3, it is characterised in that the lower section of described straight knife (3) is provided with
It is articulated with the middle part of drive rod (8), described drive rod (8) on pedestal (2), one end of described drive rod (8) is resisted against directly
The lower end of knife (3), the other end of described drive rod (8) is connected with the piston rod of drive cylinder (6).
5. the thread cutting mechanism of sewing machine according to claim 4, it is characterised in that the piston of described drive cylinder (6)
The end of bar is connected with horizontally disposed pressing plate (9), and described pressing plate (9) one end is resisted against on the end of drive rod (8), in seam
Thread to be further fixed on being fixed with guide holder (10), described guide holder (10) close to drive cylinder (6) place in the platen (1) of machine and lead
To bar (10a), described guide rod (10a) passes through the middle part of pressing plate (9).
6. the thread cutting mechanism of sewing machine according to claim 5, it is characterised in that on the two ends of described drive rod (8)
Side is respectively provided with raised (8a), and two projections (8a) bear against the lower section in straight knife (3) and pressing plate (9).
7. the thread cutting mechanism of sewing machine according to claim 2, it is characterised in that described driving structure includes being fixed on
Drive cylinder one and drive cylinder two in sewing machine table (1), the piston rod of described drive cylinder one are resisted against straight knife
(3) lower end, the piston rod of described drive cylinder two is connected with the lower end of rotary knife (4).
8. the thread cutting mechanism of the sewing machine according to claim 1 or 2 or 3 or 4 or 5 or 6 or 7, it is characterised in that described
The Flexible Reset piece (11) that strip is provided with positioning straight trough (2a), described positioning straight trough (2a) is transversely provided with pedestal (2),
Described Flexible Reset piece (11) bending is V-shaped, and one end of described Flexible Reset piece (11) acts against positioning straight trough (2a)
On the cell wall of upside, described straight knife (3) has reseting groove (3d), and the other end of described Flexible Reset piece (11) is located at reseting groove
(3d) is interior and is pressed on the downside cell wall of reseting groove (3d).
9. the thread cutting mechanism of the sewing machine according to claim 3 or 4 or 5 or 6 or 7, it is characterised in that described positioning spiral shell
Spring bearer plate (12) is also arranged with nail (5), described spring bearer plate (12) is V-shaped, spring bearer plate (12) is located at rotary knife (4)
Outside, the lower end of described spring bearer plate (12) has recess (12a) and recess (12a) is stuck on pin (7), described spring
The upper end top pressure of pressing plate (12) is on rotary knife (4) and rotary knife (4) is attached to the outsides of straight knife (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510508238.XA CN105113147B (en) | 2015-08-18 | 2015-08-18 | A kind of thread cutting mechanism of sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510508238.XA CN105113147B (en) | 2015-08-18 | 2015-08-18 | A kind of thread cutting mechanism of sewing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105113147A CN105113147A (en) | 2015-12-02 |
| CN105113147B true CN105113147B (en) | 2017-09-01 |
Family
ID=54661243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510508238.XA Active CN105113147B (en) | 2015-08-18 | 2015-08-18 | A kind of thread cutting mechanism of sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105113147B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1381628A (en) * | 2001-04-13 | 2002-11-27 | 重机公司 | Buttonhole machine controlled by sewing machine |
| CN1420224A (en) * | 2001-11-19 | 2003-05-28 | 重机公司 | Buttonhole sewing machine |
| CN2737813Y (en) * | 2004-08-13 | 2005-11-02 | 中捷缝纫机股份有限公司 | Device for severing the thread used on button holing machine |
| CN102808295A (en) * | 2011-05-18 | 2012-12-05 | Juki株式会社 | Sewing machine |
| CN204875125U (en) * | 2015-08-18 | 2015-12-16 | 浙江中捷缝纫科技有限公司 | Sewing machine's thread trimming mechanism |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4510949B2 (en) * | 1999-05-06 | 2010-07-28 | Ｊｕｋｉ株式会社 | Lower thread handling device for sewing machine |
| JP4324310B2 (en) * | 2000-05-29 | 2009-09-02 | Ｊｕｋｉ株式会社 | Lower thread handling device |
| JP4247097B2 (en) * | 2003-11-18 | 2009-04-02 | Ｊｕｋｉ株式会社 | Eyelet hole sewing machine |
-
2015
- 2015-08-18 CN CN201510508238.XA patent/CN105113147B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1381628A (en) * | 2001-04-13 | 2002-11-27 | 重机公司 | Buttonhole machine controlled by sewing machine |
| CN1420224A (en) * | 2001-11-19 | 2003-05-28 | 重机公司 | Buttonhole sewing machine |
| CN2737813Y (en) * | 2004-08-13 | 2005-11-02 | 中捷缝纫机股份有限公司 | Device for severing the thread used on button holing machine |
| CN102808295A (en) * | 2011-05-18 | 2012-12-05 | Juki株式会社 | Sewing machine |
| CN204875125U (en) * | 2015-08-18 | 2015-12-16 | 浙江中捷缝纫科技有限公司 | Sewing machine's thread trimming mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105113147A (en) | 2015-12-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103794965B (en) | Automatically glue shell machine is worn | |
| CN106436073B (en) | Thread cutting structure of bottom thread of sewing machine | |
| CN106436072A (en) | Thread trimming mechanism of sewing machine | |
| CN105113147B (en) | A kind of thread cutting mechanism of sewing machine | |
| CN205398920U (en) | Sewing machine | |
| CN204875125U (en) | Sewing machine's thread trimming mechanism | |
| CN206245030U (en) | A kind of thread cutting mechanism of sewing machine | |
| CN101597834B (en) | Cutter mechanism for clamping and cutting yarn for yarn changing device | |
| CN106676775A8 (en) | The upper thread tangent mechanism and flat seam machine of a kind of flat seam machine | |
| CN106350949A (en) | Upper-thread cutting mechanism of sewing machine | |
| CN206245029U (en) | A kind of thread cutting mechanism of sewing machine surface thread | |
| CN209505261U (en) | Wire type binder | |
| CN114737326B (en) | Computerized embroidery machine for toothbrush embroidery | |
| CN206588178U (en) | A kind of bending limit clamp | |
| CN209941248U (en) | Sleeve vent moving and sewing mechanism | |
| CN205368682U (en) | Elasticity presser bar feather penetration prevention mechanism | |
| CN205917426U (en) | Turn -up presser foot for sewing machine | |
| CN209240176U (en) | A kind of notebook guillotine | |
| CN204455525U (en) | Three hemmers | |
| CN205205441U (en) | Thread trimming mechanism of flush joint machine | |
| CN205046330U (en) | Sewing machine's trimming actuating mechanism | |
| CN209456689U (en) | A kind of sewing machine short-term head thread cutting mechanism | |
| CN208761794U (en) | A kind of feeding device of blank cloth coiling machine | |
| CN105133216B (en) | A kind of trimming drive mechanism of sewing machine | |
| CN200963860Y (en) | Curtain slice braiding machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20161026 Address after: 317604 Taizhou Province, Yuhuan County, Lantau Island Road, Hing Hong Kong Road, No. 198 Applicant after: Zhejiang Zoje Sewing Technology Co., Ltd. Applicant after: Zhejiang Zhongyi Sewing Machine Co Ltd Applicant after: Zhejiang Besserman sewing machine Co., Ltd. Address before: 317604 Taizhou Province, Yuhuan County, Lantau Island Road, Hing Hong Kong Road, No. 198 Applicant before: Zhejiang Zoje Sewing Technology Co., Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200927 Address after: 198 Xinggang East Road, Damaiyu street, Yuhuan City, Taizhou City, Zhejiang Province Patentee after: ZHEJIANG ZOJE SEWING MACHINE Co.,Ltd. Address before: 317604, Taizhou, Zhejiang province Yuhuan County barley island Street Hing Tung Road, No. 198 Patentee before: ZHEJIANG ZOJE SEWING MACHINE Co.,Ltd. Patentee before: ZHEJIANG JOYEE SEWING MACHINE Co.,Ltd. Patentee before: ZHEJIANG BSM SEWING MACHINE Co.,Ltd. |
|
| TR01 | Transfer of patent right |