CN108130661A - The control method of section line apparatus, sewing machine and sewing machine - Google Patents
The control method of section line apparatus, sewing machine and sewing machine Download PDFInfo
- Publication number
- CN108130661A CN108130661A CN201711429657.XA CN201711429657A CN108130661A CN 108130661 A CN108130661 A CN 108130661A CN 201711429657 A CN201711429657 A CN 201711429657A CN 108130661 A CN108130661 A CN 108130661A
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- China
- Prior art keywords
- thread
- stent
- section line
- line apparatus
- hot knife
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B65/00—Devices for severing the needle or lower thread
- D05B65/06—Devices for severing the needle or lower thread and for disposing of the severed thread end ; Catching or wiping devices for the severed thread
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The present invention provides the control method of a kind of section line apparatus, sewing machine and sewing machine, section line apparatus includes thread-cutting driving device, stent and hot knife, hot knife is arranged on stent, thread-cutting driving device driving arm moves in the horizontal direction, upper thread is sheared by hot knife, the prior art is not only solved using blunt knife problem present in scissors, and hot knife over there line cut off when, it also is able to carry out hot melt adhesive to the end of the end of a thread, the end of a thread end bifurcated is prevented, while can also realize that the end of a thread is short, repaiies line and anti-Bird's Nest function without secondary.
Description
Technical field
The present invention relates to the control methods of a kind of sewing machine field more particularly to section line apparatus, sewing machine and sewing machine.
Background technology
There is a kind of sewing machine of the thread cutter with the upper thread being connected with processing cloth and the cut-out of inner line in the past, sewing
At the end of, thread cutter automatically or according to the instruction of the tangent line of operator in the bottom side of processing cloth together cuts upper thread and inner line
It is disconnected.
However above-mentioned existing tangential way often leaves longer the end of a thread on cloth or clothes, it is follow-up to need manually
Ground is trimmed using scissors, this just consumes a large amount of cost of labor, also consumes a large amount of time cost.
Invention content
The first object of the present invention is to provide a kind of section line apparatus of upper thread end bonding.
The second object of the present invention is to provide a kind of sewing machine of upper thread end bonding.
The third object of the present invention is to provide a kind of control method of the sewing machine of upper thread end bonding.
In order to realize the first object of the present invention, the present invention provides a kind of section line apparatus, including thread-cutting driving device, branch
Frame and hot knife, hot knife are arranged on stent, and thread-cutting driving device driving arm moves in the horizontal direction.
By said program as it can be seen that being sheared by hot knife to upper thread, the prior art is not only solved using in scissors
Existing blunt knife problem, and hot knife is when line is cut off over there, additionally it is possible to hot melt adhesive is carried out to the end of the end of a thread, prevents the end of a thread
End bifurcated.
Further scheme is to be located on stent above hot knife and be additionally provided with thread-clamping device.
Further scheme is that thread-clamping device is spring, and spring is transversely disposed on stent.
Further scheme is that through-hole is provided on stent, and opening, spring setting are provided on the radial direction peripheral wall of through-hole
In through-hole；Section line apparatus further includes screw, and screw passes through through-hole and coordinates with through hole whorl, and spring is connected to the interior of screw
Between end face and the inner wall of through-hole.
Further scheme is that the inner face of screw is additionally provided with positioning column along axis, and positioning column passes through spring.
Further scheme is that stent sets the mounting groove of lateral arrangement in the lower section of through-hole, and hot knife is mounted on peace
In tankage, the cutting part of hot knife is exposed, and cutting part is in screw projection in the vertical direction.
Therefore the length of the end of a thread can not only be controlled by the thread-clamping device of spring, realize shorter the end of a thread, and
And clamping control is carried out to the upper thread end being located on machine after tangent line upper thread, ensure the upper thread on eedle without departing from separately
Outside, when being sewed to next clothing, sewing and cabling with eedle are controlled by rational length, and wire clamp holds dress
The upper thread end put can be detached from and take the bottom side of clothing to, then realize clothing surface without the end of a thread, and the inner face of clothing only exists
Short-term head, without again by manually carrying out repairing the end of a thread.And by the elastic adjusting to screw and spring, it can realize folder
Hold different size of wire rod.
Further scheme is that section line apparatus further includes thread guide devices, and thread guide devices include hook device and lead
Driving device, hook device are located at the top of stent, and hook device is provided with fixed component and moving parts, fixed component and shifting
For catching on upper thread, lead driving device is used to that moving parts to be driven to move relative to fixed component dynamic component.
Therefore thread guide devices are located at the top of stent, it is real using fixed component and the phase position of moving parts
Now to the adjusting of the elasticity of upper thread, it can realize the adjusting to stub using upper thread elasticity, be also prevented from eedle off-line.
In order to realize the second object of the present invention, the present invention provides a kind of sewing machine, traditional thread binding including presser feet, eedle and section
Put, eedle be used for the needle position of presser feet move back and forth, which is characterized in that section line apparatus using the above scheme in section it is traditional thread binding
It puts, stent is located on presser feet, and hot knife is movable to the top of needle position.
By said program as it can be seen that being sheared by hot knife to upper thread, the prior art is not only solved using in scissors
Existing blunt knife problem, and hot knife is when line is cut off over there, additionally it is possible to hot melt adhesive is carried out to the end of the end of a thread, prevents the end of a thread
End bifurcated.
Further scheme is that the sewing machine further includes the telescopic rod and connecting rod being connect with the presser feet, described to stretch
Contracting bar is horizontally arranged with location hole；The connecting rod passes through the location hole and is connect with the stent, and the connecting rod is connected to
Between the thread-cutting driving device and the stent.
Therefore it being driven by the location hole of presser feet telescopic rod so that stent can be easy to use with the lifting of presser feet,
And hot knife can be made to be relatively fixed relative to the position of presser feet or pin hole, ensure the extension consistency of the end of a thread, improve yields.
In order to realize the third object of the present invention, the present invention provides a kind of control method of sewing machine, including presser feet, eedle
With section line apparatus, eedle be used for the needle position of presser feet move back and forth, which is characterized in that section line apparatus using the above scheme in
Section line apparatus, stent is located on presser feet, and hot knife is movable to the top of needle position；
Control method includes：
Thread-cutting driving device driving arm moves in the horizontal direction；
Hot knife is moved to the top of needle position and upper thread is cut off.
By said program as it can be seen that being sheared by hot knife to upper thread, the prior art is not only solved using in scissors
Existing blunt knife problem, and hot knife is when line is cut off over there, additionally it is possible to hot melt adhesive is carried out to the end of the end of a thread, prevents the end of a thread
End bifurcated.
Description of the drawings
Fig. 1 is the structural reference figure of sewing machine first embodiment of the present invention.
Fig. 2 is structure chart of the line apparatus first embodiment in section of the present invention under raised configuration.
Fig. 3 is structure chart of the line apparatus first embodiment in section of the present invention under decline state.
Fig. 4 is structure chart of the line apparatus first embodiment in section of the present invention under lead state.
Fig. 5 is structure chart of the line apparatus first embodiment in section of the present invention under cut state.
Fig. 6 is that the present invention cuts structure chart of the baseline device first embodiment in surface side.
Fig. 7 is that the present invention cuts structure chart of the baseline device first embodiment in bottom surface side.
Fig. 8 is the explosive view that the present invention cuts baseline device first embodiment.
Fig. 9 is that the present invention cuts the sectional view of baseline device first embodiment in the initial state.
Figure 10 is that the present invention cuts sectional view of the baseline device first embodiment under cut state.
Figure 11 is tangent principle schematic diagram of the present invention.
Figure 12 is the first schematic diagram of tangent line trigger device in sewing machine embodiment of the present invention.
Figure 13 is the second schematic diagram of tangent line trigger device in sewing machine embodiment of the present invention.
Figure 14 is that the present invention cuts structure chart of the baseline device second embodiment in bottom surface side.
Figure 15 is the structure chart of sewing machine second embodiment of the present invention.
Figure 16 is the structure chart that sewing machine second embodiment of the present invention is located under bottom, side perspective.
Figure 17 is the local structural graph of sewing machine second embodiment of the present invention.
Figure 18 is the explosive view of line apparatus second embodiment in section of the present invention.
Figure 19 is the first tangent line schematic diagram of line apparatus second embodiment in section of the present invention.
Figure 20 is the second tangent line schematic diagram of line apparatus second embodiment in section of the present invention.
Figure 21 is that the present invention cuts structure chart of the baseline device 3rd embodiment in bottom surface side.
Figure 22 is that the present invention cuts baseline device 3rd embodiment explosive view.
Figure 23 is the first tangent line schematic diagram of line apparatus 3rd embodiment in section of the present invention.
Figure 24 is the second tangent line schematic diagram of line apparatus 3rd embodiment in section of the present invention.
Figure 25 is the principle schematic of tangent line in sewing machine control method embodiment of the present invention.
Figure 26 is the principle schematic of the anti-Bird's Nest of sewing machine control method embodiment of the present invention.
Figure 27 is the structure chart of sewing machine 3rd embodiment of the present invention.
The invention will be further described with reference to the accompanying drawings and embodiments.
Specific embodiment
Sewing machine first embodiment：
With reference to Fig. 1, Fig. 1 is the structural reference figure of sewing machine, and sewing machine includes head 11, the handwheel for being arranged on 11 side of head
111st, needle plate 41, the rotating shuttle 12 below needle plate and including being arranged on the eedle 112 of 11 opposite side of head and presser feet 113,
The needle position 114 of through-hole is provided through on presser feet 113, eedle 112 in the needle position 114 of presser feet 113 for moving back and forth, in presser feet
Recessing groove 115 is provided on 113 end face upward, recessing groove 115 is to be set along feed direction in the upper surface of presser feet 113
Sliding slot.
With reference to Fig. 2 to Fig. 5, section line apparatus 2 includes longitudinal driving device 27, stent 21, sliding block 25, hot knife and (does not show
Go out), trigger 26, longitudinal driving device 27 is arranged on the top of eedle 112 and is fixed on the head 11, in the present embodiment
In, longitudinal driving device 27 is using electromagnet, coil and spring with being combined into, i.e. spring pocket on electromagnet, wear by electromagnet
Coil is crossed, in the initial state, the precompression of spring sets electromagnet upward so that electromagnet is located at a high position, online
After circle is powered so that electromagnet moves facing downward, then realizes the driving of longitudinal direction.It is stainless that sheet can be used in the hot knife of this case
Steel, and application direct current is carried out to it so that the fever of hot knife moment then realizes that the hot melt of cut-out and the end of a thread to wire rod glues
It closes, electromagnetic wave, microwave or ultrasonic wave just can be used for the mode of heating to hot knife and heat.
Stent 21 includes upper end connecting portion 211, middle part connecting portion 212, side connections 213 and lower end connecting portion 215, on
End connecting portion 211 is located above the left side of middle part connecting portion 212, and side connections 213 are located on the right side of middle part connecting portion 212
It sets just and obliquely, lower end connecting portion 215 is located at the lower section of middle part connecting portion 212.
What needs to be explained here is that this case is to be based on sewing machine under normal operating condition using benchmark up and down,
Under user perspective up and down, and feed direction be from close to user be positioned against far from user position direction.
Upper end connecting portion 211 is fixedly connected with electromagnet, enables entire stent 2 under the drive of longitudinal driving device 27
It is enough to realize moving up and down for longitudinal direction.Lower end connecting portion 215 is provided with sliding slot 22 on the right side of presser feet 113, and sliding slot 22 is along feeding
Direction is set, and sliding slot 22 is provided with opening, rear side and position of the lower end connecting portion 215 in presser feet 113 on the end close to needle position
Limiting slot 23 is provided on rear side of sliding slot, limiting slot 23 is to set and be provided with to slide upper limit and lower limit along feed direction
Position.
Sliding block 25 includes sliding part, extension 251 and the limit protrusion 252 positioned at middle part, and sliding position is in sliding slot 22
And coordinate with sliding slot and slide, extension 251 extends to presser feet 113 from sliding slot 22, and extension 251 can slide in the opening, earnestly
Knife is arranged on extension 251 on the side of needle position 114 and positioned at the top of presser feet, and hot knife can be above recessing groove 115
Slide and be moved to the top of needle position.Limit protrusion 252, which is located in limiting slot 23, to be slided, and be limited slot 23 and limit.
Sliding block 25 is additionally provided with driving portion 253, driving portion in the rear side of sliding part in the opposite side of extension 251
253 plate-like settings, sliding part are connected to the lower section of driving portion 253, and driving column 254 is additionally provided in the top of driving portion 253.
Middle part connecting portion 212 is penetratingly provided with location hole 214 and location hole 216, and location hole 214 is horizontally disposed with along feed direction, fixed
Position hole 216 is set inclinedly.Driving column 254 passes through location hole 214 and is stretched out towards presser feet side.
Section line apparatus 2 is additionally provided with trigger 26 in the rear side of driving portion 253, and the trigger 26 in the present embodiment uses
Trigger switch, the movement backward of driving portion 253 can trigger trigger switch, be moved along Shi Zeke and detached with trigger switch.Triggering
Device 26 can be fixed on stent 2, with moving up and down for stent.
Thread guide devices include hook device 31, connecting rod 32 and retractable driving device 34, retractable driving device 34 using with
The identical device of longitudinal driving device 27, which is not described herein again, and retractable driving device 34 is fixed on side connections 213.
The top that hook device 31 is located at needle position in front end sets wired hook (as shown in Figure 1, subsequent figure is for simplification
Line hook is omitted), the present embodiment is outer can also to use round or other shapes other than using line hook, can mainly realize and catch on
Upper thread.Connecting rod 32 is located at the right side of presser feet 113 and positioned at the top of sliding slot 22, and hook device 31 is connected to connecting rod 32
Free end on, the fixing end of connecting rod 32 is connect with the electromagnet of retractable driving device 34.Connecting rod 32 passes through location hole 216
Ground tangentially slides, and hook device 31 is made to be moved along lead direction, lead direction by needle position top and towards feed direction
Rear setting.In the present embodiment, between the angle between lead direction and vertical direction is 30 degree to 60 degree, and lead side
Between angle between horizontal direction is 30 degree to 60 degree.
Connecting rod 32 is additionally provided with linkage portion 321, and linkage portion 321 is vertically prolonged upward from the ontology of connecting rod 32
Stretch, linkage portion 321 be hide presser feet arrangement be provided with overmoving surface.
With reference to Fig. 6 to Fig. 8, cut baseline device 4 and include needle plate 41, sliding block 42, hot knife 48, driving device 43, hooking dress
44 and locking plate 46 are put, needle plate 41 is provided with needle position 40, and the inner face of needle plate 41 is provided with sliding slot 411 and locating slot 413, sliding slot
411 pass through needle position 40, and locating slot 413 is located on the side of sliding slot 411, framework 412 is provided on sliding slot 411, framework 412 is in needle
Through-hole at position 40 is set, and is provided with opening on another side.
Sliding block 42 is arranged in sliding slot 411 and can be slided along sliding slot 411, and sliding block 42 is set on the end of needle position 40 422
Hot knife is put, sliding block 42 is additionally provided with driving column 421.Hook device 44 includes hook part 441, driving hole 444,445 and of recessing groove
Draw runner 442, hook part 441 are arranged on the lower section of hot knife, with reference to Fig. 9, have between hook part 441 and hot knife 48 in the horizontal plane
Lead distance L1, and hot knife 48 is located in framework 412, hook part 441 is located at outside framework 412, and hot knife 48 and hook part 441 are equal
It sets in the form of sheets, therefore the work of lower section rotating shuttle can not be influenced.Driving column 421 passes through opening to coordinate with driving hole 444 so that sliding
Block 42 and hot knife 48 can be driven by hook device 44.Preferably, hook part is set in the V-groove of indent, can be more efficient
Catch on inner line in ground.
Recessing groove 445 is located at the side of hook part 441, U-shaped slot setting, and draw runner 442 is used to coordinate in locating slot 413
It slides, is both provided with locked groove 443 in the lower section both sides of draw runner 442, card slot 461, card slot 461 and locked groove are provided on locking plate 46
443 snap locks, and locking plate 46 is fixedly connected on the inner face of needle plate 41 using screw 462.
Driving device 43 is also to use the device identical with longitudinal driving device 27, and which is not described herein again, driving device 43
Driving portion 47 set in the form of sheets, driving portion 47 is connected to the end face that hook device is located at the lower section of locating slot 413.In driving device
It is relatively fixed under effect with locking plate 46 under 43 induced effect so that hook device 44 will not fall down and can be along locating slot
413 slips and the induced effect in hook device 44 and sliding block 42 so that hot knife 48 is slid at needle position 40.
With reference to Figure 11, section line apparatus with the control method for cutting the collaborative work of baseline device will be illustrated, stitched below
The machine of threading, which further includes, declines trigger and tangent line trigger device 5, declines trigger and may be provided on the operation planar of sewing machine or set
It puts on pedal and is arranged on the side of handwheel with pedal linkage, tangent line trigger device 5.Zigzag tread patterns in illustrating below
Device 27, retractable driving device 34 and driving device 43 are controlled by Electromagnetic Control unit, due to the controlling party of electromagnet
Method is the prior art, and so it will not be repeated.
Sewing machine control method includes：
First, user, which triggers, declines trigger, and 27 driving arm 2 of longitudinal driving device drops to predeterminated position, can refer to Fig. 2,
Fig. 2 is that stent 2 is located at a high position, and hot knife and hook device 31, also in a high position, this does not just interfere the reciprocating motion of eedle,
Stent 2 decline after then as shown in figure 3, during extension 251 is located at 115 in recessing groove, this allows for hot knife can be more
Close to the cloth for being located at bottom side, the falling head of certain stent or the height of hot knife are also that can adjust, as shown in Figure 3.
But tangent line trigger device 5 can be a trigger switch, also such as the structure of Figure 12 and Figure 13 in the present embodiment, be
Hot knife is made not collide with eedle, therefore tangent line trigger device 5 is used cooperatively with handwheel.It is specific as follows, tangent line triggering
Device 5 includes electromagnet assembly 62 and trigger 61, and electromagnet assembly 62 can drive trigger 61 to be moved along the axial direction of handwheel 111
It is dynamic, protrusion 116 is provided in the peripheral surface of handwheel, the position of protrusion 116 is associated with the highest order of eedle 112.
After stent 21 declines, then trigger tangent line trigger device 6, make electromagnet assembly 62 along handwheel with being axially facing handwheel
Trigger 61 is released, then can be by the rotation of handwheel 111, protrusion 116 will trigger trigger 61, during triggering, eedle
Position is located at a high position.
Retractable driving device 34 and driving device 43 will be triggered with the triggering of trigger 61 according to certain sequential.
When retractable driving device 34 is triggered, 34 drive connection bar 32 of retractable driving device moves backwards so that hooking fills
31 are put to catch on upper thread and it is pulled out certain distance toward rear.With the movement of connecting rod 32, linkage portion 321 and driving column 254
Contact, as shown in Figure 4.
Moving backward with connecting rod 32 again so that driving column 254 drives driving portion 253 to move backward, then drives
Sliding block 25 and hot knife movement, and realize cutting of the hot knife to upper thread on needle position, as shown in Figure 5.Cutting part is huge super
Under the action of acoustic wave energy, moment softening, fusing, intensity are greatly reduced, and need to only apply the strength of very little, so that it may reach cutting material
The purpose of material, and merge the end of the end of a thread, not jag.It in compared with the prior art, needs to rise presser feet, be stretched out passing through
Structure and scissors are cut, the state that the cloth of the prior art has no longer been held down, therefore the length of tangent line the end of a thread is uncontrollable,
It is general longer and need to trim.
And driving device 43 also drives hook device 44 and sliding block 42 to be moved along sliding slot 411, due to hook part 441 and hot knife
It is as shown in Figure 9 there are lead distance between 48, so as inner line is first caught in mobile hook part 441, and pull a distance and make
In line the end of a thread it is longer, then the movement with mobile sliding block 42, hot knife 48 then by needle position 40 and cut off inner line, such as
Shown in Figure 10.
The sequence of above-mentioned section line and Qie Li lines can also cut inner line after first section line, either either simultaneously
Section line after inner line is first cut, can be achieved on the purpose of the present invention.
Touch trigger device 26 is moved backward in driving portion 253, and trigger 26 is used for resetting, and can fill zigzag tread patterns
Put 27, retractable driving device 34 and driving device 43 reset, all restore to original state, i.e., extension 251 far from needle position,
Stent 21 rises, hot knife 48 is far from needle position.
Baseline device is cut other than using the embodiment such as Fig. 7, reality as shown in figure 14 can also be used by cutting baseline device
Example is applied, is mainly improved from driving device, specifically, with reference to Figure 14, baseline device 5 is cut and further includes mounting bracket 52, drives
Dynamic device 51, slide plate 53 and connection sheet 54, mounting bracket 52 are used for mounted on the bottom of sewing machine, and for fixing driving device
51, driving device 51 is located at for electric rotating machine or the rotating driving device of electromagnetic type, driving device 51 on the side of needle position, no
In the underface of needle position, the driving end 511 of driving device 51 is rotatable, and sliding slot 521, sliding slot are additionally provided in mounting bracket 52
521 is parallel with the sliding slot of needle plate, and the both ends of slide plate 53 are both provided with articulated section, and the first end of slide plate 53 and driving end 511 are hinged,
The first end 541 of connection sheet 54 is provided with through-hole, and the second end 542 of connection sheet 54 is provided with mounting hole, and screw is fixed across this
Hole makes connection sheet 54 be fixedly connected with hook device, and the second end of slide plate 53 and the through-hole of the first end 541 of connection sheet 54 are hinged.
By the rotation of driving device 51, slip of the slide plate 53 along sliding slot 521 is driven, then drives connection sheet 54 and hooking
The slip of device then realizes corresponding hooking and cuts baseline.
By said program as it can be seen that being moved longitudinally by longitudinal driving device driving arm so that hot knife being capable of basis
Actual demand adjusts upper thread length, if necessary to shorter the end of a thread, then be hot knife closer to cloth, by hot knife tangent line
Afterwards, not only stub is short meets manufacture requirement, and the end after ultrasonic wave tangent line locally heats, and prevents end jag.It utilizes
The movement and work of presser feet are not interfered in the setting of sliding slot and sliding block, convenient movement and arrangement with sliding block.Hot knife is located at presser feet
Top so that in section during line, presser feet can push down cloth always, and cutter carries out tangent line, such length of tangent line in the top of presser feet
Degree is more accurate controllable.The recessing groove of presser feet can facilitate slip with hot knife and make the end of a thread shorter.Limit protrusion and limiting slot
For limiting the displacement distance of hot knife, prevent hot knife from damaging.
Meanwhile one section of line length is first pulled out before tangent line by thread guide devices, ensure that upper thread will not come off in eedle, and pull out
Direction is to be located behind, and does not interfere the hand of user.After one section of line length is pulled out, section line apparatus carries out tangent line again, ensures machine
Upper thread on needle without departing from.Set by the angle after tiltedly, do not influence user's hand operating space, at the same using connecting rod and
The setting of linkage portion, after one section of upper thread is pulled out so that section line apparatus is driven by linkage portion, is moved so as to fulfill bracing wire and tangent line
Make continuity, reduce driving mechanism.
Furthermore inner line is cut with locally heating by the end of hot knife, prevent end jag, and compared to biography
Its longer life expectancy of cutting blade, cutting performance is more preferable, while hot knife can use smaller blade just can realize cutting, so
It can be mounted on needle plate inner face sliding slot in, i.e., at the narrow space that hot knife can be between needle plate and rotating shuttle into
Row slides cutting, simple in structure, and cutting is accurate.By setting hook device that can be carried out before cutting to inner line certain draw
Linear distance bracing wire so that the end of a thread of inner line is longer to be prevented from going offline, and be also provided between needle plate and rotating shuttle.In order to realize to heat
Being relatively fixed and driving for cutter and hook device, needs to be fixed using locked groove and locking plate on the side of sliding slot, and profit
The slip for then driving hot knife and hook device is driven in side with driving device.
Sewing machine second embodiment：
With reference to Figure 15 to Figure 18, the section line apparatus in sewing machine second embodiment includes thread-cutting driving device 76, stent 71, spiral shell
Nail 73, hot knife 74, connecting rod 75, thread-clamping device and thread guide devices, in the telescopic rod 117 that presser feet 113 connects, telescopic rod 117
Can vertically telescopic moving, then realize the lifting of presser feet 113, thread-cutting driving device 76 is arranged on the left side of presser feet 113
And be fixedly connected in the left end face of sewing machine, solenoid actuated mode can be used in thread-cutting driving device 76, and drives end can
It stretches in the horizontal direction, driving end is provided with the location hole extended vertically, and telescopic rod 117 is provided with horizontal-extending positioning
Hole, connecting rod 75 have bar portion 751 and bar portion 752 in two end sets, and bar portion 751 passes through the location hole of telescopic rod 117, bar portion
752 pass through the location hole at driving end, with the lifting of telescopic rod 117 so that and connecting rod 75 can be slided along the location hole at driving end,
And drive the horizontal extension at end that can also make 751 horizontal extension of bar portion.
The upper end 712 of stent 71 is located at the right side of telescopic rod 117 and is connect with bar portion 751, the lower end 713 of stent 71
Positioned at the top of presser feet 113, the initial position of lower end 713 is located at the left side of telescopic rod 117 or needle position, the company at 71 middle part of stent
Binding structure is set in multi link.Lower end 713 is provided with thread-clamping device and hot knife 74, and thread-clamping device uses spring 72,
Horizontally extending through-hole 713 on lower end 713 is set, opening, spring are provided on the radial direction peripheral wall at 713 middle part of through-hole
72 are laterally positioned in through-hole 713, the moving direction for being axially perpendicular to stent 71 of spring 72, and screw 73 is operated including outer end
Portion, the inner face 73 in through-hole 713 and the positioning column 732 for being arranged on 73 upper edge axis of inner end arrangement, screw 73 pass through
And with 713 thread fitting of through-hole, positioning column 732 passes through spring 72, and spring 72 is connected to the inner face 731 and through-hole of screw 73
Between 713 inner wall.
Stent 71 sets the mounting groove 714 of lateral arrangement, mounting groove 714 and 713 cloth in the same direction of through-hole in the lower section of through-hole 713
It puts, hot knife 74 is mounted in mounting groove 714, and the cutting part 741 of hot knife 74 is exposed, and referring to Figure 19, cutting part 741 is located at spiral shell
It follows closely in 73 projection in the vertical direction.
Figure 19 is simultaneously combined with reference to Figure 20, illustrates clamping and the cutting-off process of upper thread below, Figure 19 is non-dissengaged positions, Figure 20
State is turned off, upper thread passes through eedle and pin hole, and when cutting off upper thread, stent 71 is moved horizontally towards the right side, then drives 72 He of spring
The movement of hot knife 74, upper thread is clamped inside it first by spring 72, as towards right movement, hot knife 74 can be to upper thread
It is sheared, after shearing, the upper thread end of sewing machine is clamped by spring 72.
Thread guide devices are arranged on the top of stent 71, and thread guide devices include hook device and lead driving device 771, lead
Solenoid actuated mode can be used in driving device 771, and hook device is located at the top of stent 71, and hook device is provided with fixed part
Part 772 and moving parts 773, fixed component 772 include fixing bracket, the through-hole for coaxial setting that there are two fixing bracket settings,
Fixing bracket is arranged near the sliding groove 118 of thread take-up tension lever, and moving parts 773 is connected to lead driving device 771, moving parts
773 set hooking portion 774 between 772 two through-holes of fixed component, and V-groove, U-type groove or lantern ring, face can be used in hooking portion 774
Line then passes through fixed component 772 and hooking portion 774 from top to bottom successively after passing through thread take-up tension lever, then realizes and catches on upper thread,
And lead driving device 771 under driving effect and positioning column 775 pass through position-limiting action under, make moving parts 773
It is moved relative to fixed component 772, realizes the tension degree or tightness for adjusting upper thread.
Therefore upper thread is sheared by hot knife, the prior art is not only solved using present in scissors
Blunt knife problem, and hot knife is when line is cut off over there, additionally it is possible to hot melt adhesive is carried out to the end of the end of a thread, prevents line head portion
Fork.Also, the length of the end of a thread can not only be controlled by the thread-clamping device of spring, realize shorter the end of a thread, and in tangent line
Clamping control is carried out after upper thread to the upper thread end being located on machine, ensures the upper thread on eedle without departing from addition, under
When one clothing is sewed, sewing and cabling with eedle are controlled by rational length, the upper thread end of thread-clamping device
Portion can be detached from and take the bottom side of clothing to, then realize clothing surface without the end of a thread, and the inner face of clothing only exists short-term head, without
It needs again by manually carrying out repairing the end of a thread.And by the elastic adjusting to screw and spring, it can realize clamping different size
Wire rod.Furthermore thread guide devices are located at the top of stent, fixed component and the phase position of moving parts, realization pair are utilized
The adjusting of the elasticity of upper thread can realize the adjusting to stub using upper thread elasticity, be also prevented from eedle off-line.
Second tangent line schematic diagram of section line apparatus second embodiment.
Cut baseline device 3rd embodiment：
With reference to Figure 21 and Figure 22, cut baseline device and include needle plate 4, stent 81, hot knife 83, toothrow plate 86, thread-cutting driving device
87, toothrow plate 86 has four toothrows, and row's tooth socket fit of toothrow plate 86 and needle plate 4 then realizes the propulsion to clothing, toothrow plate
86 inner surface is the arcwall face 862 of indent.Stent 81 is arranged on the lower section of toothrow plate 86.
Stent 81 is provided with articulated section at middle part, stent 81 be provided with positioned at the periphery of articulated section outer convex gear and be located at
The hook device of outer convex gear opposite side and hot knife 83, specifically, the articulated section of stent 81 on 86 side of toothrow plate with
The inner end connection of needle plate 4, arcwall face 862 of the stent 81 from articulated section towards indent are provided with pivoted arm with stretching out, and pivoted arm can
It being rotated in arcwall face 862, hook device and hot knife 83 are arranged on the end of pivoted arm, in the present embodiment, hook device
It is integrally formed with stent 81, fluting is provided on the end of pivoted arm, the hook part 82 of hook device is arranged on the bottom wall side of fluting
Set to edge and U-shaped slot or V-groove, and hot knife 83 is arranged on the cell wall of fluting, hook part 82 is located at hot knife 83 and is moving
The front in direction is moved, and there is lead distance between hook part 82 and hot knife 83 in the horizontal plane, in the vertical direction hot knife
On 83 position between needle plate 4 and hook part 82, i.e., hook part 82 is located at the top of hot knife 83.
In addition, the toothrow plate 86 with concave curved surface 862 can be provided with outside corresponding escape groove, additionally it is possible to be had
Four toothrows are sewed, and compared to the embodiment of the hot knife of above-mentioned linear drives, above-described embodiment can only be provided with three toothrows,
The present embodiment has the avoidance design more optimized in contrast.
It cuts baseline device and further includes transmission device and locking plate 85, the transmission device of the present embodiment is provided with rack 84 and is passed
It is dynamic, locked groove 841 is also set up on transmission device, locking plate is fixedly connected with the inner face of needle plate 4, the locked groove 851 and locked groove of locking plate 85
841 cooperations, transmission device is connect with thread-cutting driving device 87, under the driving effect of 87 horizontal direction of driving device so that is passed
Dynamic device can in the horizontal direction be moved along locked groove 841, and be coordinated by rack and pinion so that and stent 81 rotates, after
But make the hook part 82 of hook device by needle position 40 and for catching on baseline and hot knife 83 being made to be moved to the realization pair of needle position 40
The tangent line of baseline.
It is not carry out the state diagram that tangent line is with reference to Figure 23 and Figure 24, Figure 23, Figure 24 is not carry out the state diagram that tangent line is,
The step of below to cutting baseline, illustrates, and when seeing tangent line to baseline, first, the moving in rotation of hook part first catches on baseline and drives
One section of lead distance is moved in the horizontal direction, and then, the adjoint movement of hot knife 83 can cut off baseline.
With reference to Figure 25, below to sewing machine second embodiment after upper thread cut-out, upper thread is taken to the bottom side of cloth to, then
Realizing upper thread the end of a thread, not only the end of a thread is short, and the end of a thread is located at the bottom side of cloth, ensures design on fabric surface beauty without the end of a thread.
The control method of sewing machine includes section line step and cuts baseline step, and section line step includes：
First, see Figure 25 (a) and with reference to Figure 17, after installation triggering tangent line switch, hooking portion 774 moves, and pulls one section of upper thread
Distance；
Then, see Figure 25 (b), sewing machine carries out corresponding knotting step；
Then, see Figure 25 (c), stent 71 moves so that upper thread is clamped into spring 72, is then cut off by hot knife 74, and
Upper thread end on sewing machine is gripped by spring 72, and the upper thread end on cloth is still located at the appearance of cloth at this time
Face；
Finally, see Figure 25 (d), under the induced effect of baseline B, the upper thread F ends on cloth 10 are brought to the bottom side of cloth 10
It above and by baseline B pushes down, then carries out cutting baseline step B, be included under the rotation drive of stent 81, bottom is first caught in hook part 82
Line B simultaneously drives mobile one section of lead distance in the horizontal direction, and then, the adjoint movement of hot knife 83 can cut off baseline B.
It can be seen that the end of upper thread F and the end of baseline B are respectively positioned on 10 bottom side of cloth, it is that the surface of cloth 10 ensures aesthetics.
Need exist for illustrating realizing the condition that the cut-out of short-term head is realized, be first upper thread F hot knife and baseline B it is fervent
Knife may be provided at close to needle position place, then realize that the end of a thread after cut-out is shorter, does not need to manually repair line again, still
Too short the end of a thread will cause difficulty to sewing next time, be embodied in the upper thread F off-lines of eedle and the baseline B off-lines of rotating shuttle,
Therefore the solution of this case is：
In terms of the baseline B of face, a distance is pullled in setting hook part 82, can then realize thread-off prevention line；
In terms of upper thread F, the relative movement in setting hooking portion 774 adjusts the elasticity of upper thread F, while utilizes spring 72 to upper thread F
End is clamped, then ensure upper thread F will not run-bake-needle fault, while can also realize anti-Bird's Nest function.
It for anti-Bird's Nest function, is illustrated by Figure 26, when sewing another beginning of cloth 10, with reference to Figure 26
(a), the end of upper thread F is clamped by spring 72, and upper thread F passes through the pin hole of eedle, then, with reference to Figure 26 (b), eedle knit stitch
The first needle of sewing is carried out, the end of upper thread F is also clamped by spring 72 at this time, referring finally to Figure 26 (c), after sewing several needles, face
The end of line F is pullled and is detached from the clamping of spring 72, is finally not only brought to the bottom side of cloth 10, but also the end of a thread is short, sewing
It is very beautiful, there is no Bird's Nest phenomenon, above-mentioned function realize mainly clamped by the end of a thread of spring, rational elasticity and
The distance controlling of the end of a thread and eedle pin hole（I.e. across the remaining line length of pin hole）.
In addition, for thread-clamping device other than spring is used to clamp line, moreover it is possible to line be pressed from both sides using shrapnel
It holds or wire clamp, the wire casing etc. of rational width, these can realize the clamping to upper thread, you can realize the mesh of the present invention
, within protection scope of the present invention.
With reference to Figure 27, the 3rd embodiment of sewing machine also is able to optimize the position of thread-cutting driving device 76,
Thread-cutting driving device 76 also is able to be arranged on the rear side of presser feet 113, and passes through connecting rod 75 and can complete to be driven, i.e., far from operator
It is also that can achieve the object of the present invention on the side of member.
Therefore baseline B is sheared by hot knife, the prior art is not only solved using present in scissors
Blunt knife problem, and hot knife is when cutting off baseline B, additionally it is possible to hot melt adhesive is carried out to the end of the end of a thread, prevents the end of a thread end
Bifurcated.Since stent will pass through needle position, need to be avoided accordingly on installation position, therefore pass through rotatable stent
Setting, under non-severed process, stent can be turned on the position far from needle position, pass through swinging mounting in not removal bracket
Avoid can realize and carry out installation positioning to toothrow plate.
Claims (10)
1. section line apparatus, which is characterized in that including thread-cutting driving device, stent and hot knife, the hot knife is arranged on institute
It states on stent, the thread-cutting driving device drives the stent to move in the horizontal direction.
2. section line apparatus according to claim 1, it is characterised in that：
It is located on the stent above the hot knife and is additionally provided with thread-clamping device.
3. section line apparatus according to claim 2, it is characterised in that：
The thread-clamping device is spring, and the spring is transversely disposed on the stent.
4. section line apparatus according to claim 3, it is characterised in that：
Through-hole is provided on the stent, opening is provided on the radial direction peripheral wall of the through-hole, the spring is arranged on described logical
In hole；
The section line apparatus further includes screw, and the screw passes through the through-hole and coordinates with the through hole whorl, the bullet
Spring is connected between the inner face of the screw and the inner wall of the through-hole.
5. section line apparatus according to claim 4, it is characterised in that：
The inner face of the screw is additionally provided with positioning column along axis, and the positioning column passes through the spring.
6. section line apparatus according to claim 4, it is characterised in that：
The stent sets the mounting groove of lateral arrangement in the lower section of the through-hole, and the hot knife is mounted on the mounting groove
In, the cutting part of the hot knife is exposed, and the cutting part is in screw projection in the vertical direction.
7. section line apparatus according to any one of claims 1 to 6, it is characterised in that：
The section line apparatus further includes thread guide devices, and the thread guide devices include hook device and lead driving device, described
Hook device is located at the top of the stent, and the hook device is provided with fixed component and moving parts, the fixed component
With the moving parts for catching on the upper thread, the lead driving device is used to drive the moving parts relative to described
Fixed component moves.
8. sewing machine, including presser feet, eedle and section line apparatus, the eedle is used to move back and forth in the needle position of the presser feet,
It is characterized in that, the section line apparatus uses 1 to 7 any one of them section line apparatus of the claims；
The stent is located on the presser feet, and the hot knife is movable to the top of the needle position.
9. sewing machine according to claim 8, it is characterised in that：
The sewing machine further includes the telescopic rod and connecting rod being connect with the presser feet, and the telescopic rod is horizontally arranged with positioning
Hole；
The connecting rod passes through the location hole and is connect with the stent, and the connecting rod is connected to the thread-cutting driving device and institute
It states between stent.
10. the control method of sewing machine, including presser feet, eedle and section line apparatus, the eedle is used for the needle in the presser feet
Position moves back and forth, which is characterized in that the section line apparatus is traditional thread binding using 1 to 7 any one of them section of the claims
It puts, the stent is located on the presser feet, and the hot knife is movable to the top of the needle position；
The control method includes：
The thread-cutting driving device drives the stent to move in the horizontal direction；
The hot knife is moved to the top of the needle position and the upper thread is cut off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711429657.XA CN108130661A (en) | 2017-12-26 | 2017-12-26 | The control method of section line apparatus, sewing machine and sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711429657.XA CN108130661A (en) | 2017-12-26 | 2017-12-26 | The control method of section line apparatus, sewing machine and sewing machine |
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| Publication Number | Publication Date |
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| CN108130661A true CN108130661A (en) | 2018-06-08 |
Family
ID=62392995
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711429657.XA Pending CN108130661A (en) | 2017-12-26 | 2017-12-26 | The control method of section line apparatus, sewing machine and sewing machine |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111235773A (en) * | 2020-03-23 | 2020-06-05 | 杰克缝纫机股份有限公司 | Sewing machine and upper thread tension adjusting and bird nest reducing device thereof |
| CN113005662A (en) * | 2021-04-17 | 2021-06-22 | 韦天亮 | Short thread end thread cutting device of column type sewing machine |
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| CN113005662A (en) * | 2021-04-17 | 2021-06-22 | 韦天亮 | Short thread end thread cutting device of column type sewing machine |
| CN113005662B (en) * | 2021-04-17 | 2022-09-13 | 浙江星马精密制造有限公司 | Short thread end thread cutting device of column type sewing machine |
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