CN105133216B - A kind of trimming drive mechanism of sewing machine - Google Patents
A kind of trimming drive mechanism of sewing machine Download PDFInfo
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- CN105133216B CN105133216B CN201510508528.4A CN201510508528A CN105133216B CN 105133216 B CN105133216 B CN 105133216B CN 201510508528 A CN201510508528 A CN 201510508528A CN 105133216 B CN105133216 B CN 105133216B
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- upper thread
- scissors
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Abstract
The invention provides a kind of trimming drive mechanism of sewing machine, belong to field of mechanical technique.It solves cutting bottom line mechanism and cutting upper thread mechanism and separately drive the problem of causing complicated for existing sewing machine.It, which includes being arranged at cutting in sewing machine table, upper thread mechanism and cuts bottom line mechanism, cut the pedestal that bottom line mechanism includes being fixed in sewing machine table, the bottom line scissors that can be moved up and down is vertically arranged with pedestal, cut the positioning seat that upper thread mechanism includes being fixed in sewing machine table, being horizontally disposed with positioning seat has the upper thread scissors that can be swung laterally, the trimming drive mechanism also includes the drive cylinder being arranged in sewing machine table, and bottom line scissors can be made to cut bottom line upwards simultaneously under the drive of drive cylinder and the horizontal swing of upper thread scissors can be made to cut upper thread.It has the advantages that using a cylinder to cut bottom line mechanism while driving and cut upper thread mechanism while working, saving installing space, simplify internal structure.
Description
Technical field
The invention belongs to field of mechanical technique, be related to a kind of sewing machine, more particularly to a kind of sewing machine trimming driving machine
Structure.
Background technology
With continuing to develop for scientific and technological level, the automaticity more and more higher of sewing machine is general on existing sewing machine
Be designed with automatic shearing mechanism, cloth be put into sewing machine start sewing in place after, it is possible to use automatic shearing mechanism will be stitched
Line is cut to make suture be separated with cloth, can so save the sewing time, the labor intensity of reduction sewing workman.It is existing
Automatic shearing mechanism, which is generally comprised, cuts upper thread mechanism and cuts bottom line mechanism, cuts upper thread mechanism dedicated for upper thread is cut, cuts bottom
Line mechanism is dedicated for bottom line (and cored wire) is cut.Cutting in existing sewing machine and cuts the structure of upper thread mechanism at bottom line mechanism
It is substantially the same, it is usually to be made up of a fixing cutter and a movable blade, movable blade is connected with an actuator, in the work of the actuator
It can be moved with lower movable blade to the direction close to or away from fixing cutter, can be by bottom line or face during in movable blade
Line is caught on, then interlaced and cooperate with and cut line by movable blade and fixing cutter.
However, existing, to cut bottom line mechanism and cut upper thread mechanism individually driven by special corresponding actuator
Both it is dynamic, as cut bottom line mechanism and cut upper thread mechanism and correspond to one actuator of configuration respectively to be driven work, during trimming
It is separate, it is each self-driven, cause overall trimming less efficient, not enough synchronously, easily extend the trimming time.Further, since cutting
Bottom line mechanism and cut upper thread mechanism and be all disposed in the platen of sewing machine, the inside installing space of sewing machine table is inherently
Than narrow, production cost can be also increased to cutting bottom line mechanism and cutting upper thread mechanism and be driven respectively using two actuators,
Taking the inside installing space of sewing machine table, and also result in the structure in sewing machine table becomes more complicated, makes each
The maintenance of mechanism becomes more difficult.
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 is same using a drive cylinder
When driving cut upper thread mechanism and cut bottom line mechanism at the same carry out trimming, raising trimming efficiency sewing machine trimming drive mechanism.
The purpose of the present invention can be realized by following technical proposal：
A kind of trimming drive mechanism of sewing machine, including be arranged at cutting in sewing machine table and upper thread mechanism and cut bottom line machine
Structure, it is characterised in that described cutting is set vertically on the pedestal that bottom line mechanism includes being fixed in sewing machine table, described pedestal
The bottom line scissors that can be moved up and down is equipped with, described cuts the positioning seat that upper thread mechanism includes being fixed in sewing machine table, institute
Being horizontally disposed with the positioning seat stated has the upper thread scissors that can be swung laterally, and the trimming drive mechanism also includes being arranged at sewing machine
Drive cylinder in platen, can make described bottom line scissors cut bottom line upwards and can make simultaneously under the drive of drive cylinder
Upper thread is cut in described upper thread scissors horizontal swing.
The trimming drive mechanism of this sewing machine is after fabric sewing is finished, and main utilize cuts the in-house bottom line scissors of bottom line
Bottom line (and cored wire) is cut in motion upwards, is cut the in-house upper thread scissors horizontal swing of upper thread and is cut upper thread.
In the trimming drive mechanism of this sewing machine, upper thread mechanism is cut due to being driven merely with a drive cylinder simultaneously
Worked simultaneously with bottom line mechanism is cut, substantially increase trimming efficiency, shorten the trimming time, simultaneously because merely with a driving
Cylinder is driven, therefore, it is possible to reduce production cost well, while saving the installing space in sewing machine table, is made each
Maintenance between mechanism is simpler.
In the trimming drive mechanism of above-mentioned sewing machine, drive link, described biography are provided with below described bottom line scissors
The middle part of lever is hinged with pedestal, and the inner of described drive link is resisted against on the bottom of bottom line scissors, described positioning seat
It is horizontally disposed with to have and moving block is arranged with locating shaft, described locating shaft, described upper thread scissors is located at the upper end of moving block, institute
The moving block sidepiece stated, which has, protrudes from connecting rod outside locating shaft, and the end horizontal of the piston rod of described drive cylinder is connected with
Pressing plate, described pressing plate is resisted against on the outer end of drive link and connecting rod simultaneously.
The end of the piston rod of drive cylinder is connected with pressing plate, in driving, the piston rod retraction band dynamic pressure of drive cylinder
Plate is pushed, because pressing plate is resisted against on drive link and connecting rod simultaneously, is articulated with the middle part of drive link on pedestal and positioned at bottom line scissors
Lower section, therefore drive link rotates around pin joint in the presence of pressing plate and the inner is upturned, and bottom line scissors is upward
Promote and cut bottom line (and cored wire), simultaneously because connecting rod is fixed on moving block sidepiece, moving block is set in positioned at positioning seat
Locating shaft on, therefore connecting rod can make in the presence of pressing plate moving block produce to close to upper thread a side oscillation, positioned at rotation
Upper thread scissors on block can cut upper thread in swing process.
In the trimming drive mechanism of above-mentioned sewing machine, L-shaped briquetting, described pressure are fixed with described pressing plate
The outer end of plate and the piston rod of drive cylinder are connected, and the inner of described pressing plate is resisted against on the outer end of drive link, described company
The outer end of bar is higher than the outer end of drive link, and described briquetting upper end protrudes from the side of pressing plate and is resisted against on connecting rod.
Because the outer end of connecting rod is higher than the outer end of drive link, therefore connected L-shaped briquetting, the outer end of pressing plate on pressing plate
It is connected with the piston rod of drive cylinder, the inner of pressing plate is resisted against on the outer end of drive link, briquetting upper end is resisted against on connecting rod, this
Sample, when the piston rod retraction of drive cylinder, piston rod band dynamic pressure plate is moved down, and pressing plate the inner pushes the outer end of drive link simultaneously
The inner of drive link is upturned and push up bottom line scissors cut bottom line (and cored wire), while the pressure on pressing plate
Block upper end is in contact with connecting rod and pushes connecting rod, connecting rod push cause moving block to close to upper thread a side oscillation, positioned at turn
Upper thread scissors on motion block cuts upper thread in swing process.
In the trimming drive mechanism of above-mentioned sewing machine, the two ends upside of described drive link is respectively provided with projection, described
The inner projection of drive link be resisted against the bottom of bottom line scissors, the inner of described pressing plate is resisted against the projection of drive link outer end
On.
Due to drive cylinder drive at the same time cut upper thread mechanism and when cutting bottom line mechanism be by piston rod band dynamic pressure plate to
Lower motion forces the drive link promotion bottom line scissors of tilting upward to be moved upward to progress and cut bottom line (and cored wire), then
Projection is respectively provided with the upside of the two ends of drive link, can so be caused between drive link and bottom line scissors and drive link and pressing plate
Form the way of contact of the point with line so that drive link can preferably receive the pressure of pressing plate to be driven bottom line scissors.
In the trimming drive mechanism of above-mentioned sewing machine, described connecting rod is L-shaped, and described briquetting upper end is resisted against company
On the outer end of bar.
Connecting rod is set L-shaped, briquetting upper end is resisted against on the outer end of connecting rod, can so increased between connecting rod and briquetting
Connection area so that drive cylinder using pressing plate driving cut bottom line mechanism work while can cross by the briquetting on pressing plate
Cooperation with connecting rod is preferably driven to cutting upper thread mechanism.
In the trimming drive mechanism of above-mentioned sewing machine, the trimming drive mechanism also includes being fixed in sewing machine table
Guide holder, be provided with guide rod on described guide holder, described guide rod and the piston rod of drive cylinder be arranged in parallel, institute
The upper end for the guide rod stated is through pressing plate middle part and penetrates in briquetting.
Because drive cylinder is to cutting bottom line mechanism and being carried out by the briquetting on pressing plate to cutting upper thread mechanism by pressing plate
Drive indirectly, therefore increase the opplied moment of the piston rod of drive cylinder, simultaneously because briquetting is located at the top of pressing plate,
Torque eccentric above and below cutting bottom line mechanism and being formed when cutting the work of upper thread mechanism on pressing plate is driven simultaneously, then is passed through and is oriented to
Bar is upward through in the middle part of pressing plate and penetrated in briquetting, can be decomposed the torque eccentric up and down of generation, so as to extend drive
Take offence the service life of cylinder, it is ensured that a drive cylinder drives the stabilization cut bottom line mechanism and cut upper thread mechanism trimming simultaneously simultaneously
Property.
In the trimming drive mechanism of above-mentioned sewing machine, bar hole is offered vertically on described bottom line scissors, institute
The bottom line scissors stated is by through bar hole and penetrating the positioning screw of pedestal and being connected on pedestal.
Bottom line scissors by being connected to through bar hole and the positioning screw that penetrates in pedestal on pedestal, simultaneously as
Bar hole is in bar shaped, it is meant that bottom line scissors can be by the cooperation of bar hole and positioning screw in driving for drive cylinder
It just can upwards be moved relative to pedestal and cut bottom line.
In the trimming drive mechanism of above-mentioned sewing machine, described bottom line scissors side has reseting groove, described base
Transversely provided with positioning straight trough, the described interior Flexible Reset piece for being provided with strip of positioning straight trough, described Flexible Reset piece on seat
Bending is V-shaped, and one end of described Flexible Reset piece is acted against on the upper side wall of positioning straight trough, described Flexible Reset piece it is another
One end is located in reseting groove and is pressed in the lower wall of reseting groove.
Drive cylinder does not drive when cutting bottom line mechanism and cutting the work of upper thread mechanism, cuts the in-house bottom line scissors of bottom line multiple
There is the trend moved down in the presence of the flexure strip of position.When needing trimming, drive cylinder is when bottom line mechanism is cut in driving, bottom
Line scissors can overcome the elastic force of Flexible Reset piece to act in the presence of drive cylinder and move down and by bottom line (and cored wire)
Cut, cut upper thread while upper thread scissors can be swung laterally under the drive of drive cylinder.After line has been cut, drive cylinder
Piston rod resets, and loses the effect of drive cylinder, and bottom line scissors can downwards reset under the elastic force effect of Flexible Reset piece.
In the trimming drive mechanism of above-mentioned sewing machine, described moving block sidepiece also has plate-like location division,
Described location division is located at the both sides of moving block with connecting rod, and described location division is protruded from outside locating shaft, described moving block
Back-moving spring is connected between location division and positioning seat.
Drive cylinder does not drive when cutting bottom line mechanism and cutting the work of upper thread mechanism, cuts the in-house moving block of upper thread by multiple
The elastic force of position spring is acted on and to the side oscillation away from upper thread, upper thread scissors is as moving block is away from upper thread.When needing trimming
When, drive cylinder when upper thread mechanism is cut in driving, moving block can overcome back-moving spring elastic force act on and to close to upper thread one
On side oscillation, moving block upper thread scissors is close to upper thread and is cut, while bottom line scissors under the drive of drive cylinder to
Upper cutting bottom line (and cored wire).After line has been cut, the piston rod of drive cylinder resets, and loses the effect of drive cylinder, rotates
Block can reset under the elastic force effect of back-moving spring, even if upper thread scissors resets.
Compared with prior art, the trimming drive mechanism of this sewing machine is driven and cuts upper thread machine simultaneously using a drive cylinder
Structure and bottom line mechanism is cut while carrying out trimming, can greatly improve trimming efficiency, the saving trimming time, simultaneously because only with
One drive cylinder, therefore production cost can be reduced well again, the inner space of sewing machine table is saved, is so also convenient for
The maintenance of Liao Ge mechanisms；In addition, using guide rod is through the middle part of pressing plate and penetrates in briquetting, one can lead to pressing plate
To, it is not deflected, two can by produced on piston rod bias be decomposed using by guide rod, so may be used
To extend the service life of drive cylinder simultaneously, it is ensured that a drive cylinder, which drives, to be cut bottom line mechanism and cut upper thread mechanism while cutting
The stability of line.
Brief description of the drawings
Fig. 1 is that the trimming drive mechanism of this sewing machine is arranged at the schematic diagram in sewing machine table.
Fig. 2 is the schematic diagram of the trimming drive mechanism of this sewing machine.
Fig. 3 is the exploded view of the trimming drive mechanism Zhong Jian bottom lines mechanism of this sewing machine.
Fig. 4 is state diagram of the trimming drive mechanism Zhong Jian upper threads mechanism of this sewing machine when cutting upper thread.
Fig. 5 is schematic diagram of the trimming drive mechanism Zhong Jian upper threads mechanism of this sewing machine when cutting upper thread.
Fig. 6 is another angle schematic diagram of the trimming and thread clamping mechanism of this sewing machine when cutting upper thread.
Fig. 7 is the state diagram of the trimming and thread clamping mechanism of this sewing machine under arm seam.
Fig. 8 is the schematic diagram of the trimming and thread clamping mechanism of this sewing machine under arm seam.
Fig. 9 is another angle schematic diagram of the trimming and thread clamping mechanism of this sewing machine under arm seam.
In figure, 1, platen；2nd, bottom line mechanism is cut；2a, pedestal；2a1, positioning straight trough；2b, bottom line scissors；2b1, straight knife；
2b11, bar hole；2b12, reseting groove；2b13, link slot；2b2, rotary knife；2c, drive link；2c1, projection；2d, positioning screw；
2e, Flexible Reset piece；2f, pin；3rd, upper thread mechanism is cut；3a, positioning seat；3b, upper thread scissors；3b1, cutting knife one；3b11, clamp
Portion；3b2, cutting knife two；3c, locating shaft；3d, moving block；3d1, connecting rod；3d2, location division；3e, back-moving spring；3f, clamp；
3f1, clamp hole；4th, drive cylinder；5th, pressing plate；6th, briquetting；7th, guide holder；8th, guide rod.
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 depicted in figs. 1 and 2, the trimming drive mechanism of a kind of sewing machine, including be arranged in sewing machine table 1 and cut face
Line mechanism 3, cut bottom line mechanism 2 and drive cylinder 4.The pedestal 2a that bottom line mechanism 2 includes being fixed in sewing machine table 1 is cut,
It is vertically arranged with pedestal 2a below bottom line scissors 2b, bottom line scissors 2b and is provided with drive link 2c, is hinged in the middle part of drive link 2c
On pedestal 2a, drive link 2c the inner is resisted against bottom line scissors 2b bottom.The end horizontal of drive cylinder 4 is connected with pressing plate 5,
The outer end of pressing plate 5 is connected with the piston rod of drive cylinder 4, and the inner of pressing plate 5 is resisted against on drive link 2c outer end.In this reality
Apply in example, raised 2c1 is respectively provided with the upside of drive link 2c two ends, raised 2c1 inner drive link 2c is resisted against bottom line scissors 2b
Bottom, the raised 2c1 of drive link 2c outer ends is resisted against the inner lower section of pressing plate 5.
As shown in Figures 2 and 3, bottom line scissors 2b includes the straight knife 2b1 being vertically arranged and the rotation on the outside of straight knife 2b1
Knife 2b2, drive link 2c are located at straight knife 2b1 lower section, and rotary knife 2b2 is V-shaped, and straight knife 2b1 upper ends are formed with cutting edge, rotary knife 2b2
End side has cutting edge and rotary knife 2b2 top of the cutting edge positioned at straight knife 2b1 cutting edges.It is axially arranged with bar shaped along it on straight knife 2b1
It is located in the middle part of hole 2b11, rotary knife 2b2 at straight knife 2b1 bar hole 2b11, a positioning screw 2d sequentially passes through rotary knife from outside
2b2 middle parts, the bar hole 2b11 on straight knife 2b1 are simultaneously penetrated in pedestal 2a, and rotary knife 2b2 is formed by positioning screw 2d with pedestal 2a
It is hinged.Straight knife 2b1 one side has forms a link slot 2b13, rotary knife between the projection for protruding from pedestal 2a sides, two projections
2b2 lower ends are connected with pin 2f and pin 2f is inserted into link slot 2b13.
As shown in figure 3, transversely provided with positioning straight trough 2a1, the interior reset bullets for being provided with strip of positioning straight trough 2a1 on pedestal 2a
Property piece 2e, Flexible Reset piece 2e bending it is V-shaped, on straight knife 2b1 have reseting groove 2b12, Flexible Reset piece 2e one end is acted against
On the upper side wall for positioning straight trough 2a1, the Flexible Reset piece 2e other end is located in reseting groove 2b12 and is pressed in reseting groove 2b12's
On the cell wall of downside.
As shown in Fig. 2 the positioning seat 3a that upper thread mechanism 3 includes being fixed in sewing machine table 1 is cut, level on positioning seat 3a
It is provided with locating shaft 3c, locating shaft 3c and is arranged with moving block 3d, moving block 3d sidepieces has the company protruded from outside locating shaft 3c
The horizontally disposed outer end for having upper thread scissors 3b, connecting rod 3d1 in bar 3d1, moving block 3d upper end is higher than drive link 2c outer end.Pressing plate
L-shaped briquetting 6 is fixed with 5, connecting rod 3d1 is also L-shaped, the upper end of briquetting 6 protrudes from outside the side of pressing plate 5 and is resisted against connecting rod
On 3d1 outer end.
As shown in Fig. 4-Fig. 9, clamp 3f is further fixed on positioning seat 3a, clamp 3f end is provided with clamp hole
3f1, bottom line is introduced in clamp 3f and drawn from the clamp hole 3f1 on clamp 3f.Face scissors include be arranged in parallel and
The 3b1 of the cutting knife one in the form of sheets and 3b2 of cutting knife two, the 3b2 of cutting knife two outer end are located at clamp 3f lower section and the 3b2's of cutting knife two
Outer end is protruded from outside the 3b1 of cutting knife one outer end, and the 3b2 of cutting knife two has cutting edge close to the 3b1 of cutting knife one side, the 3b1's of cutting knife one
Outer end bends up and forms crimping 3b11 upwards, crimping 3b11 and clamp 3f ends mutually recline and crimping 3b11 side
Clamp hole 3f1 of the portion on clamp 3f.
There is moving block 3d sidepieces plate-like location division 3d2, location division 3d2 to protrude from outside locating shaft 3c, location division 3d2
It is located at moving block 3d both sides with connecting rod 3d1, back-moving spring is connected between moving block 3d location division 3d2 and positioning seat 3a
3e, moving block 3d is to the side oscillation away from upper thread and close to clamp 3f under back-moving spring 3e elastic force effect.
The trimming drive mechanism of this sewing machine also includes setting on the guide holder 7 being fixed in sewing machine table 1, guide holder 7
The guide rod 8 parallel with the piston rod of drive cylinder 4 is equipped with, the upper end of guide rod 8 passes through the middle part of pressing plate 5 and penetrates briquetting 6
It is interior.
In the trimming drive mechanism of this sewing machine cut bottom line mechanism 2 be mainly used in the bottom line after fabric is sewed (and
Cored wire) cut, cut upper thread mechanism 3 and be mainly used in the upper thread after fabric is sewed and cut and clamp bottom line after upper thread is cut
It is good conveniently to cut bottom line mechanism 2 to cut.
, it is necessary to when bottom line (and cored wire) and upper thread are cut, control the piston rod of drive cylinder 4 after fabric sewing is finished
Work.The piston rod end retraction of drive cylinder 4, band dynamic pressure plate 5 is moved downward, and the inner of pressing plate 5 pushes drive link 2c outer end,
Drive link 2c is rotated around pin joint, and drive link 2c the inner is upturned and promotes bottom line scissors 2b straight knife 2b1 to overcome multiple
Position flexure strip 2e elastic force is acted on and moved up, due to the link slot on the pin 2f insertion straight knives 2b1 of rotary knife 2b2 lower ends
In 2b13, therefore during straight knife 2b1 risings rotary knife 2b2 lower end can be driven to move up, such rotary knife 2b2 will be around being hinged
Put and rotate, the bottom line (and cored wire) of fabric bottom can be hooked into cutting edge by the cutting edge of its upper end in rotary knife 2b2 rotation processes
It is interior, while the cutting edge that the cutting edge of straight knife 2b1 upper ends can be constantly to rotary knife 2b2 in uphill process is close, until straight knife 2b1 sword
Mouth cuts the bottom line (and cored wire) being hooked into rotary knife 2b2 cutting edges.
As Figure 4-Figure 6, while pressing plate 5 pushes driving bottom line scissors 2b trimmings, the briquetting 6 on pressing plate 5
The connecting rod 3d1 of moving block 3d sidepieces can be pushed simultaneously, connecting rod 3d1 is depressed so that moving block 3d rotates.Rotate
Block 3d can overcome back-moving spring 3e elastic force effect and to the side oscillation close to upper thread, the upper thread scissors 3b 3b2 of cutting knife two exists
Moving block 3d is cut upper thread by the cutting edge of its sidepiece to meeting and brought into linear contact during upper thread one side oscillation.
So, drive cylinder 4 by the effect of pressing plate 5 and briquetting 6 to cut upper thread mechanism 3 while driving and cut bottom line mechanism 2
Upper thread and bottom line (and cored wire) are cut simultaneously.
After upper thread and bottom line (and cored wire) are cut, the piston rod of drive cylinder 4 resets upwards, the pressure on pressing plate 5 and pressing plate 5
Block 6 is separated with drive link 2c and connecting rod 3d1 respectively, and drive cylinder 4 is no longer carried out to cutting bottom line mechanism 2 and cutting upper thread mechanism 3
Driving.After the driving for losing drive cylinder 4, cut bottom line mechanism 2 and cut upper thread mechanism 3 and reset respectively.In bottom line scissors 2b
Straight knife 2b1 drives rotary knife 2b2 lower ends to move down under Flexible Reset piece 2e elastic force effect, and recovers to initial position.Such as
Shown in Fig. 7-Fig. 9, moving block 3d is then under back-moving spring 3e elastic force effect to the side oscillation away from upper thread, while swinging
During upper thread scissors 3b it is away from upper thread and close to clamp 3f, the crimping on the 3b1 of cutting knife one in upper thread scissors 3b
Bottom line can be clamped in the 3f1 of clamp hole and (be cut in bottom line by 3b11 sidepiece when being moved to the clamp hole 3f1 of clamp 3f ends
Clamping bottom line after falling can ensure to correctly find the end of a thread in sewing next time, prevent off-line).
The trimming drive mechanism of this sewing machine drives and cuts upper thread mechanism 3 and cut bottom simultaneously merely with a drive cylinder 4
Line mechanism 2 carries out trimming simultaneously, greatly increases operating efficiency, and due to only with a drive cylinder 4, therefore also very
Production cost is reduced well, while saving the installing space in sewing machine table 1, is provided conveniently to safeguard.
Further, since the trimming drive mechanism of this sewing machine make use of 6 pairs of pressing plate 5 and briquetting to cut bottom line mechanism 2 and cut face
Line mechanism 3 is driven indirectly, increases the opplied moment of the piston rod of drive cylinder 4, simultaneously because briquetting 6 is located at pressing plate 5
On, torque eccentric up and down can be formed on piston rod, using guide rod 8 is through the middle part of pressing plate 5 and penetrates in briquetting 6, one
Pressing plate 5 can be oriented to, it is not deflected, two can be eccentric using by being oriented to by what is produced on piston rod
Bar 8 is decomposed, and can so extend the service life of drive cylinder 4, it is ensured that a drive cylinder 4 drives simultaneously cuts bottom line machine
Structure 2 and cut upper thread mechanism 3 simultaneously trimming stability.
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 (8)
1. a kind of trimming drive mechanism of sewing machine, including it is arranged at cutting upper thread mechanism (3) and cut bottom in sewing machine table (1)
Line mechanism (2), it is characterised in that described cuts the pedestal (2a) that bottom line mechanism (2) includes being fixed in sewing machine table (1),
The bottom line scissors (2b) that can be moved up and down is vertically arranged with described pedestal (2a), described upper thread mechanism (3) of cutting includes
It is fixed on to be horizontally disposed with the positioning seat (3a) in sewing machine table (1), described positioning seat (3a) and has what can be swung laterally
Upper thread scissors (3b), the trimming drive mechanism also includes the drive cylinder (4) being arranged in sewing machine table (1), in driving gas
Described bottom line scissors (2b) can be made to cut bottom line upwards and described upper thread scissors (3b) can be made under the drive of cylinder (4) simultaneously
Horizontal swing is cut offers bar hole (2b11), described bottom line scissors vertically on upper thread, described bottom line scissors (2b)
(2b) is by through bar hole (2b11) and penetrating pedestal (2a) positioning screw (2d) and being connected on pedestal (2a).
2. the trimming drive mechanism of sewing machine according to claim 1, it is characterised in that under described bottom line scissors (2b)
Side is provided with drive link (2c), and the middle part of described drive link (2c) is hinged with pedestal (2a), described drive link (2c) it is interior
End, which is resisted against to be horizontally disposed with bottom line scissors (2b) bottom, described positioning seat (3a), locating shaft (3c), described positioning
Moving block (3d) is arranged with axle (3c), described upper thread scissors (3b) is located at the upper end of moving block (3d), described moving block
(3d) sidepiece, which has, protrudes from the connecting rod (3d1) of locating shaft (3c) outside, the end horizontal of the piston rod of described drive cylinder (4)
Pressing plate (5) is connected with, described pressing plate (5) is while be resisted against on the outer end of drive link (2c) and connecting rod (3d1).
3. the trimming drive mechanism of sewing machine according to claim 2, it is characterised in that be connected on described pressing plate (5)
There is L-shaped briquetting (6), the outer end of described pressing plate (5) is connected with the piston rod of drive cylinder (4), described pressing plate (5)
The inner is resisted against on drive link (2c) outer end, and the outer end of described connecting rod (3d1) is higher than the outer end of drive link (2c), described
Briquetting (6) upper end protrudes from the side of pressing plate (5) and is resisted against on connecting rod (3d1).
4. the trimming drive mechanism of sewing machine according to claim 3, it is characterised in that the two of described drive link (2c)
End upside is respectively provided with raised (2c1), and the inner projection (2c1) of described drive link (2c) is resisted against bottom line scissors (2b) bottom
Portion, the inner of described pressing plate (5) is resisted against in the projection (2c1) of drive link (2c) outer end.
5. the trimming drive mechanism of sewing machine according to claim 3, it is characterised in that described connecting rod (3d1) is in L
Shape, described briquetting (6) upper end is resisted against on connecting rod (3d1) outer end.
6. the trimming drive mechanism of the sewing machine according to claim 1 or 2 or 3 or 4 or 5, it is characterised in that the trimming drives
Motivation structure also includes being provided with guide rod on the guide holder (7) being fixed in sewing machine table (1), described guide holder (7)
(8), the piston rod of described guide rod (8) and drive cylinder (4) be arranged in parallel, and the upper end of described guide rod (8) passes through pressure
Plate (5) middle part is simultaneously penetrated in briquetting (6).
7. the trimming drive mechanism of the sewing machine according to claim 1 or 2 or 3 or 4 or 5, it is characterised in that described bottom
Line scissors (2b) side has transversely provided with positioning straight trough (2a1) on reseting groove (2b12), described pedestal (2a), described
The Flexible Reset piece (2e) that strip is provided with straight trough (2a1) is positioned, described Flexible Reset piece (2e) bending is V-shaped, described
One end of Flexible Reset piece (2e) is acted against on the upper side wall of positioning straight trough (2a1), described Flexible Reset piece (2e) it is another
End is located in reseting groove (2b12) and is pressed in reseting groove (2b12) lower wall.
8. the trimming drive mechanism of sewing machine according to claim 2, it is characterised in that described moving block (3d) sidepiece
Also there is plate-like location division (3d2), described location division (3d2) is located at the both sides of moving block (3d), institute with connecting rod (3d1)
The location division (3d2) stated protrudes from locating shaft (3c) outside, the location division (3d2) and positioning seat (3a) of described moving block (3d) it
Between be connected with back-moving spring (3e).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510508528.4A CN105133216B (en) | 2015-08-18 | 2015-08-18 | A kind of trimming drive mechanism of sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510508528.4A CN105133216B (en) | 2015-08-18 | 2015-08-18 | A kind of trimming drive mechanism of sewing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105133216A CN105133216A (en) | 2015-12-09 |
| CN105133216B true CN105133216B (en) | 2017-08-25 |
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| CN201510508528.4A Active CN105133216B (en) | 2015-08-18 | 2015-08-18 | A kind of trimming drive mechanism of sewing machine |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1224087A (en) * | 1998-01-15 | 1999-07-28 | 杜尔科普-阿德乐股份有限公司 | Thread cutting device for buttonhole 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 |
| CN201284404Y (en) * | 2008-09-25 | 2009-08-05 | 吴阿杞 | Two-side thread trimming shared thread trimmer |
| JP4316069B2 (en) * | 1999-09-30 | 2009-08-19 | Ｊｕｋｉ株式会社 | Perforated sewing machine |
| CN104862891A (en) * | 2015-06-17 | 2015-08-26 | 浙江中捷缝纫科技有限公司 | Thread shearing mechanism of sewing machine |
| CN205046330U (en) * | 2015-08-18 | 2016-02-24 | 浙江中捷缝纫科技有限公司 | Sewing machine's trimming actuating mechanism |
-
2015
- 2015-08-18 CN CN201510508528.4A patent/CN105133216B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1224087A (en) * | 1998-01-15 | 1999-07-28 | 杜尔科普-阿德乐股份有限公司 | Thread cutting device for buttonhole machine |
| JP4316069B2 (en) * | 1999-09-30 | 2009-08-19 | Ｊｕｋｉ株式会社 | Perforated 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 |
| CN201284404Y (en) * | 2008-09-25 | 2009-08-05 | 吴阿杞 | Two-side thread trimming shared thread trimmer |
| CN104862891A (en) * | 2015-06-17 | 2015-08-26 | 浙江中捷缝纫科技有限公司 | Thread shearing mechanism of sewing machine |
| CN205046330U (en) * | 2015-08-18 | 2016-02-24 | 浙江中捷缝纫科技有限公司 | Sewing machine's trimming actuating mechanism |
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| CN105133216A (en) | 2015-12-09 |
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Effective date of registration: 20161020 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. |
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Effective date of registration: 20200924 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. |
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