CN110219101A - A kind of sewing machine and presser foot lifter thread releasing mechanism - Google Patents
A kind of sewing machine and presser foot lifter thread releasing mechanism Download PDFInfo
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- CN110219101A CN110219101A CN201910204335.8A CN201910204335A CN110219101A CN 110219101 A CN110219101 A CN 110219101A CN 201910204335 A CN201910204335 A CN 201910204335A CN 110219101 A CN110219101 A CN 110219101A
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- presser foot
- loose ends
- foot lifter
- connecting pin
- pin
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- 238000009958 sewing Methods 0.000 title claims abstract description 20
- 230000007246 mechanism Effects 0.000 title abstract description 7
- 235000008331 Pinus X rigitaeda Nutrition 0.000 claims description 3
- 235000011613 Pinus brutia Nutrition 0.000 claims description 3
- 241000018646 Pinus brutia Species 0.000 claims description 3
- 230000008859 change Effects 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 12
- 230000009471 action Effects 0.000 description 8
- 230000001105 regulatory effect Effects 0.000 description 3
- 210000003813 thumb Anatomy 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 210000003127 knee Anatomy 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B29/00—Pressers; Presser feet
- D05B29/02—Presser-control devices
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B47/00—Needle-thread tensioning devices; Applications of tensometers
- D05B47/04—Automatically-controlled tensioning devices
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The invention belongs to sewing device technical field, a kind of automatic needle-foot-lifting thread releasing mechanism and sewing machine are refered in particular to；Presser foot lifter loose ends cam is arranged in the shaft of motor, one end of shaft on presser foot lifter loose ends cam far from motor is provided with spring base one, presser foot lifter loose ends top plate includes furcation one, furcation two and furcation three, and the middle part of presser foot lifter loose ends top plate is rotatably connected on casing by presser foot lifter loose ends pin, the outer end of furcation two is provided with spring base two, it is connected by tension spring so that the outer cylinder of spring base two and the outer cylinder of presser foot lifter loose ends cam connect between spring base one and spring base two, the outer end of furcation one is located at the lower section of the presser bar spring bracket of presser foot component, the outer end of furcation three is located at the side of the auxiliary nail of loose ends of loose ends component；The present invention is acted by a motor control loose ends and presser foot lifter, compact-sized, is connected between presser foot lifter loose ends cam and spring base two and is driven presser foot lifter loose ends top panel turns, noise is small, and production cost is low.
Description
Technical field:
The invention belongs to sewing device technical field, a kind of sewing machine and presser foot lifter thread releasing mechanism are refered in particular to.
Background technique:
Tension disk is generally provided on sewing machine.The effect of tension disk is in sewing machine work, and tension disk is by suture
It clamps, makes suture that there is suitable elasticity；After sewing, when automatic shearing, tension disk cannot unclamp automatically, then need
Setting thread-loosening device controls tension disk and unclamps automatically.
Foot device is also equipped on sewing machine.Presser feet is pressed on the top of sewing when sewing machine works, presser foot lifter
Movement is driven by presser foot lifting device.
The automatic thread releasing mechanism of the sewing machine as disclosed in 204644631 U of Chinese patent CN, including linear actuator, set
Wobble crank below linear actuator, loose ends top tool bevelled loose ends top plate and be resisted against on loose ends top plate inclined-plane
Bar, the other end of the loose ends mandril are resisted against on the tension disk with reset spring, have axis hole on the wobble crank,
Top plate axis is fixed in the axis hole, one end of the top plate axis wears and is connected on loose ends top plate, and the swing is bent
Handle makees circuit oscillation around the central axes of top plate axis, is arranged with the reduction torsion spring acted on loose ends top plate on the top plate axis.
When automatically controlled sending loose ends signal, linear actuator is powered, and straight-bar is released downwards, and wobble crank is driven to turn counterclockwise
It is dynamic, loose ends top plate synchronous hunting is driven, is transported to the right under the promotion on loose ends top plate inclined-plane with the loose ends mandril of loose ends top plate contact
Dynamic, loose ends mandril pushes tension releasing pin, tension disk loose ends.After power-off, straight-bar resets under the action of return spring, loose ends top plate and pendulum
Dynamic crank resets under the action of reduction torsion spring, and tension disk resets under the action of reset spring, and tension disk is in clamp state.
For another example a kind of foot lifting mechanism disclosed in 206873066 U of Chinese patent CN, including electromagnet, crank, connecting rod,
Transmission component and presser foot component, the electromagnet are connected by crank, connecting rod and transmission component with presser foot component, the crank
Corner is used to be hinged with the casing of sewing machine, which is characterized in that the upper end of the crank is connected with connecting rod, the electromagnet
Iron core be resisted against the bottom of crank lower end, foot lifting mechanism further includes knee control mandril and driving lever, one end of the driving lever and institute
The end for stating crank lower end is connected, and the other end of the driving lever is used to be hinged with the casing of sewing machine, the knee control mandril
It is hinged in the middle part of top and driving lever.
It is driven respectively by two independent drivers from the above it can be seen that the loose ends and presser foot lifter on existing sewing machine act,
There is the defects of at high cost, structure is complicated, assembly time is long.
Summary of the invention:
The object of the present invention is to provide a kind of sewing machines and automatic needle-foot-lifting loose ends machine compact-sized, that reduce production cost
Structure.
The present invention is implemented as follows:
One of purpose of the invention is to provide a kind of presser foot lifter thread-loosening device, including presser foot component, tension disk；Also wrap
Motor, lift pressure loose ends actuator are included, is provided with the first connecting pin, second connection end and third connection on lift pressure loose ends actuator
End, the lift pressure loose ends actuator are rotatably connected on casing by presser foot lifter loose ends pin, and the shaft of motor passes through lift pressure loose ends
Crank is connect with the first connecting pin of lift pressure loose ends actuator, and the second connection end of lift pressure loose ends actuator passes through presser feet lifter plate
Connect with presser foot component, third connecting pin is located at the side of tension disk, the third connecting pin side adjacent with tension disk is inclined-plane,
The inclined-plane lift pressure loose ends actuator around presser foot lifter loose ends pin rotate when between tension disk at a distance from change, motor turn
Axis rotates clockwise or counterclockwise drive lift pressure loose ends actuator and rotates clockwise or counterclockwise realization lift around presser foot lifter loose ends pin
Presser feet and loose ends act or lift pressure loose ends actuator and reset.
In a kind of above-mentioned presser foot lifter thread-loosening device, loose ends is pressed in the lift between first connecting pin, second connection end
It is arranged fluted on actuator, is provided with presser foot lifter spanner cam in groove, presser foot lifter spanner cam and presser foot lifter spanner connect
It connects, presser foot lifter spanner cam is driven to rotate for rotation presser foot lifter spanner and acting on lift pressure loose ends actuator makes it around presser foot lifter loose ends
Pin, which rotates clockwise, carries out presser foot lifter and loose ends movement.
In a kind of above-mentioned presser foot lifter thread-loosening device, the lift pressure loose ends actuator is lift pressure thread tension releasing disc, lift pressure loose ends
The middle part of plate is rotatably connected on casing by presser foot lifter loose ends pin, and lift pressure thread tension releasing disc include furcation one, furcation two and
Furcation three, furcation one, furcation three are located at the two sides of furcation two, furcation one, furcation two and furcation three
Outer end be respectively the first connecting pin, second connection end and third connecting pin.
In a kind of above-mentioned presser foot lifter thread-loosening device, it is arranged with torsional spring on the presser foot lifter loose ends pin, presses loose ends in lift
It is outward extended with loose ends drawstring mounting base between the first connecting pin, third connecting pin on plate, the pivoted arm of one end of torsional spring is resisted against
In loose ends drawstring mounting base, the other end is resisted against on casing.
In a kind of above-mentioned presser foot lifter thread-loosening device, the lift pressure loose ends actuator includes lever, loose ends before presser foot lifter
Top plate, loose ends top plate are rotatably connected on casing by presser foot lifter loose ends pin, on the loose ends top plate above presser foot lifter loose ends pin
It is provided with the first arcuate socket, one end of lever is threaded through in the first arcuate socket by the first screw and is connected with loose ends top plate before presser foot lifter
It connecing, the upper end of loose ends top plate is provided with butting section, and lower end is third connecting pin, and butting section is located at the side of lever before presser foot lifter,
First connecting pin, second connection end setting on lever, are additionally provided with before presser foot lifter before presser foot lifter on lever with first
Screw is second arcuate socket in the center of circle, and lever passes through the second arcuate socket by the second screw and connect with casing before presser foot lifter.
In a kind of above-mentioned presser foot lifter thread-loosening device, it is arranged with torsional spring on the presser foot lifter loose ends pin, one end of torsional spring
Pivoted arm is resisted against before presser foot lifter on the butting section of lever, the other end is resisted against on casing.
In a kind of above-mentioned presser foot lifter thread-loosening device, one end of the presser foot lifter loose ends crank and the shaft of motor are fixed
Connection, the other end are provided with elongate holes, and connecting pin is provided on the first connecting pin, and connecting pin is arranged in elongate holes.
In a kind of above-mentioned presser foot lifter thread-loosening device, the motor is stepper motor or grating electromechanical.
It is a further object to provide a kind of sewing machine, the presser foot lifter thread-loosening device stated is wrapped.
The advantage that the present invention protrudes compared with prior art is:
The present invention is acted by a motor control loose ends movement with presser foot lifter, compact-sized, and production cost is effectively reduced, and
Use motor small as power source noise.
Detailed description of the invention:
Fig. 1 is one of the schematic diagram that presser foot lifter thread-loosening device of the invention is arranged on casing, wherein lift pressure loose ends driving
Part is lift pressure thread tension releasing disc；
Fig. 2 is one of the stereoscopic schematic diagram that lift pressure loose ends actuator of the invention is lift pressure thread tension releasing disc；
Fig. 3 is the two of the stereoscopic schematic diagram that lift pressure loose ends actuator of the invention is lift pressure thread tension releasing disc；
Fig. 4 is the schematic diagram of lift pressure thread tension releasing disc of the invention；
Fig. 5 is one of the schematic diagram that presser foot lifter thread-loosening device of the invention is arranged on casing, wherein lift pressure loose ends driving
Part is lift pressure thread tension releasing disc；
Fig. 6 is the schematic diagram of presser feet lifter plate of the invention；
Fig. 7 is the schematic diagram that presser foot lifter thread-loosening device of the invention is arranged on casing, wherein lift pressure loose ends actuator is
Lever, loose ends top plate before presser feet；
Fig. 8 is that lift pressure loose ends actuator of the invention is one of lever, stereoscopic schematic diagram of loose ends top plate before presser feet；
Fig. 9 be lift pressure loose ends actuator of the invention be lever before presser feet, loose ends top plate stereoscopic schematic diagram two；
Figure 10 is the schematic diagram of loose ends top plate of the invention；
Figure 11 is lever schematic diagram before presser feet of the invention；
Figure 12 is the schematic diagram of lift pressure loose ends crank of the invention.
In figure: 1, motor；2, casing；3, the first connecting pin；4, second connection end；5, third connecting pin；6, presser foot lifter pine
Line pin；7, shaft；8, lift pressure loose ends crank；9, presser feet lifter plate；10, yarn take-up spring adjustment seat；11, the auxiliary nail of loose ends；12, clamp
Piece；13, tension regulating thumb nut；14, thread tension spring；15, tension releasing pin；16, reset spring；17, lift pressure thread tension releasing disc；18, torsional spring；19, loose ends
Drawstring mounting base；20, circlip；21, presser bar；22, presser bar spring bracket；23, presser feet；24, groove；25, presser foot lifter spanner cam；
26, presser foot lifter spanner；27, elongate holes；28, lever before presser feet；29, loose ends top plate；30, the first arcuate socket；31, butting section；
32, the second arcuate socket.
Specific embodiment:
With specific embodiment, the invention will be further described below, referring to Fig. 1-12:
One of purpose of the invention is to provide a kind of presser foot lifter thread-loosening device, including presser foot component, tension disk, motor
1, lift pressure loose ends actuator, wherein motor 1 is stepper motor, is also possible to grating electromechanical etc..The preferred stepper motor of the present embodiment.
Motor 1 is fixed on casing 2.The first connecting pin 3, second connection end 4 and third connecting pin are provided on lift pressure loose ends actuator
5, the lift pressure loose ends actuator is rotatably connected on casing 2 by presser foot lifter loose ends pin 6, and the shaft 7 of motor 1 passes through lift pressure pine
Line crank 8 is connect with the first connecting pin 3 of lift pressure loose ends actuator, and the second connection end 5 of lift pressure loose ends actuator passes through presser feet
Lifter plate 9 is connect with presser foot component, third connecting pin 5 is located at the side of tension disk, the side adjacent with tension disk of third connecting pin 5
Face is inclined-plane, the inclined-plane lift pressure loose ends actuator around lift pressure loose ends pin 6 rotate when between tension disk at a distance from change,
The shaft 7 of motor 1 rotate clockwise drive lift pressure loose ends actuator around presser foot lifter loose ends pin 6 rotate clockwise realize presser foot lifter with
Loose ends movement；When the shaft 7 of motor 1 rotates counterclockwise, driving presser foot component and tension disk reset.
Lift pressure loose ends actuator of the invention is an integral structure or split type structure, specific structure select according to actual needs
It selects.
Tension disk of the present invention includes yarn take-up spring adjustment seat 10, the auxiliary nail 11 of loose ends, the auxiliary nail of yarn take-up spring adjustment seat 10, loose ends
11 are mounted on casing 2, its axial direction is provided with loose ends in yarn take-up spring adjustment seat 10 and determines mounting hole, yarn take-up spring adjustment seat 10
Front end is stretched out except casing 2, thread tension disc abutment face is provided in yarn take-up spring adjustment seat 10, before yarn take-up spring adjustment seat 10
End setting is provided with thread tension spring 14 for clamp there are two thread tension disc 12 and tension regulating thumb nut 13 between thread tension disc 12 and tension regulating thumb nut 13
Piece 12 is resisted against on thread tension disc abutment face, one end of tension releasing pin 15 be arranged in tension releasing pin mounting hole and with the clamp that is located at outside
Piece 12 abuts, the other end stretches out except the rear end of yarn take-up spring adjustment seat 10, the axis coaxle line of loose ends auxiliary nail 11 and tension releasing pin 15
Or be arranged in parallel, and the auxiliary nail 11 of loose ends can be resisted against on tension releasing pin 15, it is provided with circlip on the auxiliary nail 11 of loose ends, in tension releasing pin 15
It is arranged with reset spring 16 outside, one end of reset spring 16 is held out against on the trailing flank of yarn take-up spring adjustment seat 10, the other end is held out against
On circlip.When the ramp effect on third connecting pin 5 is when on the auxiliary nail 11 of loose ends, with the variation of the tilt angle on inclined-plane,
The auxiliary nail 11 of loose ends is driven to achieve the purpose that loose ends against the thread tension disc 12 that tension releasing pin 15 is opened positioned at outside in turn.When the auxiliary nail of loose ends
After 11 reset under the action of reset spring 16, thread tension spring 14 drives tension releasing pin 15 to reset, and two thread tension discs 12 are bonded realization again
Gripping action.
The specific structure that lift pressure loose ends actuator is an integral structure is as follows:
As shown in Figs. 1-5, the lift pressure loose ends actuator is lift pressure thread tension releasing disc 17, and the middle part of lift pressure thread tension releasing disc 17 passes through lift
Presser feet loose ends pin 6 is rotatably connected on casing 2, and lifting pressure thread tension releasing disc 17 includes furcation one, furcation two and furcation three, is divided
Fork one, furcation three are located at the two sides of furcation two, and the outer end of furcation one, furcation two and furcation three is respectively
First connecting pin 3, second connection end 4 and third connecting pin 5.
Further, it is arranged with torsional spring 18 on the presser foot lifter loose ends pin 6, the first connecting pin on lift pressure thread tension releasing disc 17
3, loose ends drawstring mounting base 19 is outward extended between third connecting pin 4, the pivoted arm of 18 one end of torsional spring is resisted against loose ends drawstring peace
It fills on seat 19, the other end is resisted against on casing 2.Torsional spring 18 can assist lift pressure thread tension releasing disc 17 to reset.Lift pressure thread tension releasing disc 17 is reset into
And presser feet pushing, tension disk is driven to clamp again.
Torsional spring 18 is mobile on presser foot lifter loose ends pin 6 in order to prevent is even detached from from presser foot lifter loose ends pin 6, the torsional spring
The circlip 20 that axial limiting is carried out to torsional spring 18 is respectively arranged on the presser foot lifter loose ends pin 6 of 18 two sides.In actual use process
In, circlip 20 can be replaced by retaining ring or directly upset mode.But the preferred circlip 20 of the present embodiment, there is occupied space
Small, the advantages that structure is simple, convenient for disassembly and assembly.
Presser foot component of the present invention includes presser bar 21 and the presser bar spring bracket 22 for being installed in 21 upper end of presser bar, is being pressed
The lower end of foot lever 21 is provided with presser feet 23, and presser feet lifter plate 9 is connect with presser bar spring bracket 22.
The upper end of presser feet lifter plate 9 is rotatablely connected by pin shaft, circlip and second connection end 4, and lower end hook is located at compression bar and leads
On frame 22.When presser foot lifter, presser feet 23 is lifted 22 1 upward power of presser bar spring bracket by presser feet lifter plate 9.When reset, due to
Presser feet 23 is connect by pressure spring and look nut with casing, after the power acted on presser bar spring bracket 22 disappears, in pressure regulation
Under the action of spring, presser bar 21 and presser feet 23 automatically reset.
In order to facilitate the movement of manual actuation presser foot lifter and loose ends, the present invention is in first connecting pin 3, second connection end
It is arranged fluted 24 on lift pressure thread tension releasing disc 17 between 4, presser foot lifter spanner cam 25, presser foot lifter spanner is provided in groove 24
Cam 25 is connect with presser foot lifter spanner 26, and rotation presser foot lifter spanner 26 drives presser foot lifter spanner cam 25 to act on lift pressure thread tension releasing disc
17 make it rotate clockwise carry out presser foot lifter around presser foot lifter loose ends pin 6.
Further, one end of the presser foot lifter loose ends crank 8 is fixedly connected with the shaft 7 of motor 1, the other end is provided with
Elongate holes 27, connecting pin is provided on the first connecting pin 3, and connecting pin is arranged in elongate holes 278.In the shaft 7 of motor 1
Outer cylinder on be machined with plane, one end of presser foot lifter loose ends crank 8 is provided with the sleeve for connection, and sleeve is set in motor
In 1 shaft 7, and the screw-driving by being radially arranged on sleeve achieves a fixed connection in the plane of shaft 7.
As illustrated in figures 7-11, lift pressure loose ends actuator is that the specific structure of split type structure is as follows:
The lift pressure loose ends actuator includes lever 28, loose ends top plate 29 before presser foot lifter, and loose ends top plate 29 passes through presser foot lifter
Loose ends pin 6 is rotatably connected on casing 2, is provided with the first arcuate socket 30 on the loose ends top plate 29 above presser foot lifter loose ends pin 6,
One end of lever 28 is threaded through in the first arcuate socket 30 by the first screw and is connect with loose ends top plate 29 before presser foot lifter, loose ends top plate
29 upper end is provided with butting section 31, and lower end is third connecting pin 5, and butting section 31 is located at the side of lever 28 before presser foot lifter, institute
State the first connecting pin 3, second connection end 4 is arranged before presser foot lifter on lever 28, be additionally provided on lever 28 before presser foot lifter with
First screw is second arcuate socket 32 in the center of circle, and lever 28 passes through the second arcuate socket 32 and casing by the second screw before presser foot lifter
2 connections.
Similarly, it is arranged with torsional spring on the presser foot lifter loose ends pin 6, the pivoted arm of one end of torsional spring is resisted against lever before presser foot lifter
On 28 butting section 31, the other end is resisted against on casing 2.Torsional spring can drive loose ends top plate 29 to automatically reset.
In order to realize manual presser foot lifter and loose ends, thick stick before the presser foot lifter between first connecting pin 3, second connection end 4
Fluted 24 are arranged on bar 28.
Presser foot lifter spanner 26 is rotated clockwise manually, and lever 28 makes before driving presser foot lifter spanner cam 25 to act on presser foot lifter
It is rotated around the second screw carries out presser foot lifter movement, meanwhile, lever 28 acts on loose ends top plate 29 before presser foot lifter, makes loose ends top plate
It rotates clockwise to carry out loose ends movement on the auxiliary nail 11 of the loose ends for making inclined-plane withstand on tension disk around 29 presser foot lifter loose ends pins 6.
It (is rotated counterclockwise) when presser foot lifter spanner cam 25 acts on after the power before presser foot lifter on lever 28 disappears, in torsional spring
Under the action of, loose ends top plate is rotated counterclockwise around 29 presser foot lifter loose ends pins 6 to reset, and tension disk comes back to clamping upper thread at this time
State；Meanwhile butting section 31 acts on lever 28 before presser foot lifter and resets to it and plays booster action, at this point, presser feet 23 is automatic
It pushes.
It is a further object to provide a kind of sewing machines, including above-mentioned presser foot lifter thread-loosening device.
Above-described embodiment is only one of presently preferred embodiments of the present invention, and but not intended to limit the scope of the present invention, therefore:
The equivalence changes that all shape, structures under this invention, principle are done, should all be covered by within protection scope of the present invention.
Claims (9)
1. a kind of presser foot lifter thread-loosening device, including presser foot component, tension disk；It is characterized by also including motors (1), lift pressure pine
Line actuator is provided with the first connecting pin (3), second connection end (4) and third connecting pin (5), institute on lift pressure loose ends actuator
It states lift pressure loose ends actuator to be rotatably connected on casing (2) by presser foot lifter loose ends pin (6), the shaft (7) of motor (1) passes through lift
Pressure loose ends crank (8) is connect with the first connecting pin (3) of lift pressure loose ends actuator, the second connection end of lift pressure loose ends actuator
(4) connect with presser foot component by presser feet lifter plate, third connecting pin (5) are located at the side of tension disk, third connecting pin (5) and
The adjacent side of tension disk be inclined-plane, the inclined-plane lift pressure loose ends actuator around presser foot lifter loose ends pin (6) rotate when and tension disk
The distance between change, the shaft (7) of motor (1) rotate clockwise or counterclockwise drive lift pressure loose ends actuator around lift press
Foot loose ends pin (6), which rotates clockwise or counterclockwise, realizes that presser foot lifter and loose ends movement or lift pressure loose ends actuator reset.
2. a kind of presser foot lifter thread-loosening device according to claim 1, it is characterised in that: first connecting pin (3), second
Fluted (24) are set on lift pressure loose ends actuator between connecting pin (4), it is convex to be provided with presser foot lifter spanner in groove (24)
It takes turns (25), presser foot lifter spanner cam (25) is connect with presser foot lifter spanner (26), and rotation presser foot lifter spanner (26) drives presser foot lifter to pull
Hand cam (25) rotates and acting on lift pressure loose ends actuator makes it rotate clockwise carry out presser foot lifter around presser foot lifter loose ends pin (6)
It is acted with loose ends.
3. a kind of presser foot lifter thread-loosening device according to claim 1 or 2, it is characterised in that: loose ends actuator is pressed in the lift
Thread tension releasing disc (17) are pressed for lift, the middle part of lift pressure thread tension releasing disc (17) is rotatably connected on casing (2) by presser foot lifter loose ends pin (6),
And lift pressure thread tension releasing disc (17) includes furcation one, furcation two and furcation three, furcation one, furcation three are located at bifurcated
The two sides in portion two, the outer end of furcation one, furcation two and furcation three are respectively the first connecting pin (3), second connection end (4)
And third connecting pin (5).
4. a kind of presser foot lifter thread-loosening device according to claim 3, it is characterised in that: on the presser foot lifter loose ends pin (6)
Torsional spring (18) are arranged with, the first connecting pin (3), third connecting pin in lift pressure thread tension releasing disc (17) are outward extended between (5)
Loose ends drawstring mounting base (19), the pivoted arm of torsional spring (18) one end is resisted against in loose ends drawstring mounting base (19), the other end is resisted against
On casing (2).
5. a kind of presser foot lifter thread-loosening device according to claim 1 or 2, it is characterised in that: loose ends actuator is pressed in the lift
Including lever before presser foot lifter (28), loose ends top plate (29), loose ends top plate (29) is rotatably connected on machine by presser foot lifter loose ends pin (6)
On shell (2), it is provided with the first arcuate socket (30) on the loose ends top plate (29) above presser foot lifter loose ends pin (6), thick stick before presser foot lifter
One end of bar (28) is threaded through in the first arcuate socket (30) by the first screw and is connect with loose ends top plate (29), loose ends top plate (29)
Upper end be provided with butting section (31), lower end is third connecting pin (5), and butting section (31) are located at one of lever (28) before presser foot lifter
Side, first connecting pin (3), second connection end (4) are arranged before presser foot lifter on lever (28), lever (28) before presser foot lifter
On be additionally provided with the second arcuate socket (32) using the first screw as the center of circle, lever (28) passes through the by the second screw before presser foot lifter
Two arcuate sockets (32) are connect with casing (2).
6. a kind of presser foot lifter thread-loosening device according to claim 5, it is characterised in that: on the presser foot lifter loose ends pin (6)
It is arranged with torsional spring, the pivoted arm of one end of torsional spring is resisted against before presser foot lifter on the butting section (31) of lever (28), the other end is resisted against machine
On shell (2).
7. a kind of presser foot lifter thread-loosening device according to claim 1 or 2, it is characterised in that: the presser foot lifter loose ends crank
(8) one end is fixedly connected with the shaft (7) of motor (1), the other end is provided with elongate holes (27), on the first connecting pin (3)
It is provided with connecting pin, connecting pin setting is in elongate holes (27).
8. a kind of presser foot lifter thread-loosening device according to claim 1, it is characterised in that: the motor (1) (1) is stepping electricity
Machine or grating electromechanical.
9. a kind of sewing machine, it is characterised in that: including the described in any item presser foot lifter thread-loosening devices of claim 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910204335.8A CN110219101A (en) | 2019-03-18 | 2019-03-18 | A kind of sewing machine and presser foot lifter thread releasing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910204335.8A CN110219101A (en) | 2019-03-18 | 2019-03-18 | A kind of sewing machine and presser foot lifter thread releasing mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110219101A true CN110219101A (en) | 2019-09-10 |
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ID=67822467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910204335.8A Pending CN110219101A (en) | 2019-03-18 | 2019-03-18 | A kind of sewing machine and presser foot lifter thread releasing mechanism |
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| Country | Link |
|---|---|
| CN (1) | CN110219101A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111793910A (en) * | 2020-07-14 | 2020-10-20 | 杰克缝纫机股份有限公司 | Sewing machine and presser foot lifting and upper thread tension adjusting mechanism thereof |
| CN113151988A (en) * | 2021-04-26 | 2021-07-23 | 浙江欣普自动化科技有限公司 | Driving structure of splicing and sewing machine |
| CN113249879A (en) * | 2021-06-18 | 2021-08-13 | 浙江杜马缝纫机股份有限公司 | Lift presser foot and thread loosening mechanism and sewing machine |
| WO2021189749A1 (en) * | 2020-03-23 | 2021-09-30 | 杰克缝纫机股份有限公司 | Sewing machine and upper thread tension adjustment and bird nest reduction device thereof |
| WO2021227260A1 (en) * | 2020-05-15 | 2021-11-18 | 杰克缝纫机股份有限公司 | Sewing machine integrating presser foot lifting and thread tension adjustment |
| CN113668146A (en) * | 2020-05-15 | 2021-11-19 | 杰克缝纫机股份有限公司 | Sewing machine |
| CN114481463A (en) * | 2020-11-11 | 2022-05-13 | 杰克科技股份有限公司 | Flush joint machine |
| CN114990809A (en) * | 2022-07-14 | 2022-09-02 | 浙江翔科缝纫机股份有限公司 | Small square-head type three-in-one flat seaming machine |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1231355A (en) * | 1998-04-07 | 1999-10-13 | 重机株式会社 | Thread loosing device for sewing machine |
| CN2858699Y (en) * | 2005-11-30 | 2007-01-17 | 大连大富基缝纫机有限公司 | Computer buttonhole locking machine |
| JP2009195514A (en) * | 2008-02-22 | 2009-09-03 | Juki Corp | Presser foot lifter of sewing machine |
| CN103184660A (en) * | 2013-03-20 | 2013-07-03 | 新杰克缝纫机股份有限公司 | Thread releasing device for sewing machine |
| CN204000195U (en) * | 2014-06-25 | 2014-12-10 | 杭州谷立电气技术有限公司 | The electronic presser foot lifting device of Sewing machines |
| CN104499203A (en) * | 2015-01-08 | 2015-04-08 | 杰克缝纫机股份有限公司 | Thread releasing device allowing automatic thread shearing and automatic press foot lifting |
| CN204570203U (en) * | 2015-04-08 | 2015-08-19 | 浙江美机缝纫机有限公司 | The loose wire gripper line apparatus of Sewing machines |
| CN204644631U (en) * | 2015-05-18 | 2015-09-16 | 浙江美机缝纫机有限公司 | The automatic thread releasing mechanism of Sewing machines |
| CN205874675U (en) * | 2016-05-10 | 2017-01-11 | 上海富山精密机械科技有限公司 | Presser foot lifter device for sewing machine |
| CN206814987U (en) * | 2017-06-16 | 2017-12-29 | 浙江乐江机械有限公司 | A kind of sewing machine loose ends structure |
| CN209941242U (en) * | 2019-03-18 | 2020-01-14 | 浙江翔科缝纫机股份有限公司 | Sewing machine and lift presser foot thread loosening mechanism |
-
2019
- 2019-03-18 CN CN201910204335.8A patent/CN110219101A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1231355A (en) * | 1998-04-07 | 1999-10-13 | 重机株式会社 | Thread loosing device for sewing machine |
| CN2858699Y (en) * | 2005-11-30 | 2007-01-17 | 大连大富基缝纫机有限公司 | Computer buttonhole locking machine |
| JP2009195514A (en) * | 2008-02-22 | 2009-09-03 | Juki Corp | Presser foot lifter of sewing machine |
| CN103184660A (en) * | 2013-03-20 | 2013-07-03 | 新杰克缝纫机股份有限公司 | Thread releasing device for sewing machine |
| CN204000195U (en) * | 2014-06-25 | 2014-12-10 | 杭州谷立电气技术有限公司 | The electronic presser foot lifting device of Sewing machines |
| CN104499203A (en) * | 2015-01-08 | 2015-04-08 | 杰克缝纫机股份有限公司 | Thread releasing device allowing automatic thread shearing and automatic press foot lifting |
| CN204570203U (en) * | 2015-04-08 | 2015-08-19 | 浙江美机缝纫机有限公司 | The loose wire gripper line apparatus of Sewing machines |
| CN204644631U (en) * | 2015-05-18 | 2015-09-16 | 浙江美机缝纫机有限公司 | The automatic thread releasing mechanism of Sewing machines |
| CN205874675U (en) * | 2016-05-10 | 2017-01-11 | 上海富山精密机械科技有限公司 | Presser foot lifter device for sewing machine |
| CN206814987U (en) * | 2017-06-16 | 2017-12-29 | 浙江乐江机械有限公司 | A kind of sewing machine loose ends structure |
| CN209941242U (en) * | 2019-03-18 | 2020-01-14 | 浙江翔科缝纫机股份有限公司 | Sewing machine and lift presser foot thread loosening mechanism |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021189749A1 (en) * | 2020-03-23 | 2021-09-30 | 杰克缝纫机股份有限公司 | Sewing machine and upper thread tension adjustment and bird nest reduction device thereof |
| WO2021227260A1 (en) * | 2020-05-15 | 2021-11-18 | 杰克缝纫机股份有限公司 | Sewing machine integrating presser foot lifting and thread tension adjustment |
| CN113668147A (en) * | 2020-05-15 | 2021-11-19 | 杰克缝纫机股份有限公司 | Sewing machine integrating presser foot lifting and thread tension adjusting |
| CN113668146A (en) * | 2020-05-15 | 2021-11-19 | 杰克缝纫机股份有限公司 | Sewing machine |
| CN113668146B (en) * | 2020-05-15 | 2022-08-02 | 杰克科技股份有限公司 | Sewing machine |
| CN111793910A (en) * | 2020-07-14 | 2020-10-20 | 杰克缝纫机股份有限公司 | Sewing machine and presser foot lifting and upper thread tension adjusting mechanism thereof |
| CN114481463A (en) * | 2020-11-11 | 2022-05-13 | 杰克科技股份有限公司 | Flush joint machine |
| CN114481463B (en) * | 2020-11-11 | 2023-06-13 | 杰克科技股份有限公司 | Flat seaming machine |
| CN113151988A (en) * | 2021-04-26 | 2021-07-23 | 浙江欣普自动化科技有限公司 | Driving structure of splicing and sewing machine |
| CN113249879A (en) * | 2021-06-18 | 2021-08-13 | 浙江杜马缝纫机股份有限公司 | Lift presser foot and thread loosening mechanism and sewing machine |
| CN114990809A (en) * | 2022-07-14 | 2022-09-02 | 浙江翔科缝纫机股份有限公司 | Small square-head type three-in-one flat seaming machine |
| CN114990809B (en) * | 2022-07-14 | 2023-06-27 | 浙江翔科缝纫机股份有限公司 | Small square head type three-in-one flat seaming machine |
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