CN108118456A - A kind of new type auto foot lifting mechanism and lockstitch button holder - Google Patents
A kind of new type auto foot lifting mechanism and lockstitch button holder Download PDFInfo
- Publication number
- CN108118456A CN108118456A CN201611077991.9A CN201611077991A CN108118456A CN 108118456 A CN108118456 A CN 108118456A CN 201611077991 A CN201611077991 A CN 201611077991A CN 108118456 A CN108118456 A CN 108118456A
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- presser
- slope
- foot
- driving
- actuator
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B29/00—Pressers; Presser feet
- D05B29/02—Presser-control devices
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The present invention provides a kind of new type auto foot lifting mechanism, including power source, actuator, the driving swing rod for fixing with first swing pivot, the driving member extended along the length direction of casing and presser foot lifter executive module with presser bar, actuator has the presser foot lifter slope being obliquely installed and bleeds off pressure foot slope, one end of driving swing rod is equipped with rotatable roller, the other end and driving member and is hinged, and driving member is connected with presser foot lifter executive module；When power source drives actuator action, roller is made to be moved along the presser foot lifter slope on actuator, presser bar moves up；When power source drives actuator action, makes roller along when bleeding off pressure foot slope and moving, presser bar moves down on actuator.Due to presser foot lifter slope and bleed off pressure foot slope and be all obliquely installed, therefore the horizontal force that roller is subject to is smaller, the driving moment that it generates actuator is also smaller, the failures such as mechanism caused by contributing to driving moment of the reduction because of needed for actuator excessive is insensitive, stuck, fever.
Description
Technical field
The present invention relates to a kind of garment sewing equipment, more particularly to a kind of new type auto foot lifting mechanism and have
The lockstitch button holder of the new type auto foot lifting mechanism.
Background technology
Lockstitch button holder is the type in industrial sewing machine, belongs to extraordinary machine, is mainly used for processing the button in all kinds of dress ornaments
Hole.With the continuous development of technology, lockstitch button holder also develops towards semi-automatic, full-automatic direction, therefore its function is also increasingly
It is perfect, for example, lockstitch button holder can realize the functions such as automatic shearing, automatic needle-foot-lifting, automatic sewing.At present, it is existing in lockstitch button holder
Automatic needle-foot-lifting mechanism, particularly some heavier loads automatic needle-foot-lifting mechanism, major defect is that driving torque is big,
In have greatly acting be to be wasted on the friction torque of axis pin part, so as to cause to drive automatic needle-foot-lifting mechanism
It is serious that the motor feels hot, ultimately results in automatic needle-foot-lifting mechanism and the failures such as dumb or stuck occurs.
The content of the invention
In view of the foregoing deficiencies of prior art, it is an object of the invention to provide a kind of new type auto presser foot lifter machines
Structure substantially reduces the driving moment of the entire foot lifting mechanism action of power source drive, and overall structure is simple.
To achieve the above object, the present invention provides a kind of new type auto foot lifting mechanism, the new type auto presser foot lifter machine
Structure include power source, in casing and by the actuator of power source drive, in casing and with first fix put
Activity supporting point driving swing rod, along casing length direction extend driving member and the presser foot lifter execution group in casing
Part has presser bar in the presser foot lifter executive module, have on the actuator presser foot lifter slope that is all obliquely installed and
Foot slope is bled off pressure, one end of the driving swing rod is equipped with a rotatable roller, drives the other end and driving member of swing rod
One end be hinged, the other end of driving member is connected with presser foot lifter executive module；When the action of power source drive actuator, make roller
When being moved along the presser foot lifter slope on actuator, the presser bar moves up；When the action of power source drive actuator, make roller edge
On actuator bleed off pressure foot slope movement when, the presser bar moves down.
Further, the power source is a driving motor, and the actuator is directly or indirectly driven for one by driving motor
Dynamic and rotatable rotating member, the rotating member are equipped with cam surface, and the upward slope that on the cam surface there is height to gradually increase is oblique
The descending inclined-plane that face and height are gradually reduced, the upward slope inclined-plane and descending inclined-plane are symmetrical arranged, and the upward slope inclined-plane is formed
The presser foot lifter slope, the descending inclined-plane form described in bleed off pressure foot slope.
Preferably, the periphery of the rotating member offers a cam path, and the groove bottom of the cam path forms the cam surface.
Preferably, the upper surface of the rotating member is the cam surface.
Further, a motor mounting plate for being fixed on casing is equipped in the casing, the driving motor is vertically-mounted
On the lower face of motor mounting plate, the output shaft of the driving motor vertically up and down extension and from motor mounting plate to
On be fixedly connected through rear with rotating member.
Preferably, the output shaft of the driving motor is mutually fixed with rotating member by a boss, and the boss includes bottom plate
Portion and from the upper end of base plate connection protuberance protruding upward, the output shaft of the driving motor is fixed in connection protuberance,
The connection protuberance is fixed in rotating member, and thrust bearing is equipped between the base plate and motor mounting plate.
Further, the power source is a driving motor, and the actuator is directly or indirectly driven for one by driving motor
It is dynamic and can straight reciprocating moving member, there is an inclined surface being obliquely installed on the moving member, which forms institute
It states presser foot lifter slope and bleeds off pressure foot slope.
Preferably, the presser foot lifter slope and to bleed off pressure the tilt angle theta of foot slope be all 5 °~30 °
Further, the presser foot lifter executive module include with second fix swing pivot presser feet lifting and swinging bar,
Presser feet lifting linking member, the guide plate and stent for being fixed on casing offer the guide groove extended up and down in the guide plate,
The stent is equipped with a sliding block protruded, and the presser bar is fixed in the bracket, the other end and the presser feet liter of the driving member
One end of drop oscillating rod is hinged, and the upper end of the other end and presser feet lifting linking member of the presser feet lifting and swinging bar is hinged, institute
The lower end and sliding block for stating presser feet lifting linking member are hinged, the sliding block be located in the guide groove of guide plate and can be in guide groove on
Lower slider.
Preferably, the regulating tank of about one extension, the presser feet lifting and swinging bar are offered in the presser feet lifting linking member
The axial screw being threaded through with presser feet lifting linking member by one in the regulating tank is hinged；A pressure is cased on the presser bar
Spring, the upper and lower ends of the compression spring are born against in casing and stent.
The present invention also provides a kind of lockstitch button holders, and including casing, new type auto lift as described above is equipped in the casing
Presser foot device.
As described above, new type auto foot lifting mechanism of the present invention and lockstitch button holder, have the advantages that：
In the application, by roller and presser foot lifter slope and bleed off pressure foot slope and be engaged, presser foot lifter can be driven to perform
Presser bar in component is moved up or moved down, and so as to fulfill automatic needle-foot-lifting, due to presser foot lifter slope and bleeds off pressure foot slope all
It is obliquely installed, therefore the horizontal force that roller is subject to is smaller, the driving moment generated to actuator is also just smaller, so as to help to subtract
The failures such as mechanism caused by few driving moment because of needed for actuator is excessive is insensitive, stuck, fever；In addition, the application relates to
And new type auto foot lifting mechanism overall structure it is simple, it is at low cost.
Description of the drawings
Fig. 1 is the structure diagram of lockstitch button holder in the application.
Fig. 2 is the sectional view along A-A of Fig. 1.
Fig. 3 to Fig. 5 is the structure diagram of new type auto foot lifting mechanism in the application.
The B that Fig. 6 is Fig. 5 encloses enlarged drawing.
Fig. 7 is the structure diagram of presser foot lifter executive module in the application.
Fig. 8 is the force analysis figure of roller.
Fig. 9 to Figure 11 is the mechanism principle figure of new type auto foot lifting mechanism difference embodiment in the application.Element numbers
Explanation
10 casings
101 drive end units
102 chain-drive sections
20 driving motors
30 actuators
31 presser foot lifter slopes
32 bleed off pressure foot slope
33 rotating members
331 cam surfaces
332 upward slope inclined-planes
333 descending inclined-planes
334 joint faces
335 cam paths
34 moving members
341 inclined surface
40 driving swing rods
41 fixed pins
42 first swing rod arms
43 second swing rod arms
50 driving members
60 presser foot lifter executive modules
61 presser bars
62 presser feet lifting and swinging bars
63 presser feet lifting linking members
631 regulating tanks
64 guide plates
641 guide grooves
65 stents
651 sliding blocks
66 axial screws
67 compression springs
70 rollers
80 motor mounting plates
90 boss
91 base plates
110 thrust bearings
Specific embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this explanation
Content disclosed by book understands other advantages and effect of the present invention easily.
It should be clear that structure, ratio, size depicted in this specification institute accompanying drawings etc., only specification to be coordinated to be taken off
The content shown so that those skilled in the art understands and reads, is not limited to the enforceable qualifications of the present invention, therefore
Do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size are not influencing the present invention
Under the effect of can be generated and the purpose that can reach, it should all still fall and obtain the model that can cover in disclosed technology contents
In enclosing.Meanwhile cited such as " on ", " under " in this specification, "left", "right", the term of " centre " and " one ", also it is only
Convenient for the clear of narration rather than to limit the enforceable scope of the present invention, relativeness is altered or modified, in no essence
It changes under technology contents, when being also considered as the enforceable scope of the present invention.
In following embodiment, all directions are defined as follows：The length direction of lockstitch button holder is defined as left and right directions, by keyhole
The width of machine is defined as front-rear direction, and the short transverse of lockstitch button holder is defined as vertical direction；Alternatively, such as Fig. 2 and Fig. 4 institutes
Show, the left side of paper is left direction, and the right side of paper is right direction, and the upside of paper is upper direction, and the downside of paper is lower section
To the front of paper is front direction, and the back side of paper is rear direction.
The application provides a kind of new type auto foot lifting mechanism, in the casing 10 of lockstitch button holder, such as Fig. 1 and Fig. 2 institutes
Showing, the casing 10 of lockstitch button holder has drive end unit 101 and chain-drive section 102, wherein, drive end unit 101 is located at the left end of casing 10, head
Portion 102 is located at the right end of casing 10.As shown in Figures 2 to 5, the new type auto foot lifting mechanism includes power source, is mounted on
In the drive end unit 101 of casing 10 and by the actuator 30 of power source drive, in the drive end unit 101 of casing 10 and with the
The driving swing rod 40 of one fixation swing pivot O1, along length direction of casing 10 or so extension driving member 50 and be mounted on
Presser foot lifter executive module 60 in the chain-drive section 102 of casing 10.There is the pressure extended up and down in the presser foot lifter executive module 60
Foot lever 61, the lower end of the presser bar 61 extend downwardly from the chain-drive section 102 of casing 10 and are fixed with presser feet.Shown driving pendulum
Bar 40 is generally L-shaped, with approximate horizontal the first swing rod arm 42 extended to the right and extend generally upward second
Swing rod arm 43, driving swing rod 40 is rotatably connected at casing 10 by the fixed pin 41 extended before and after one, alternatively, driving
Swing rod 40 is rotatably connected at a fixed plate by the fixed pin 41 extended before and after one, which is fixed on casing 10,
Therefore the fixed pin 41 fixes swing pivot O1 for the first of driving swing rod 40.Have what is be all obliquely installed on the actuator 30
It presser foot lifter slope 31 and bleeds off pressure foot slope 32, therefore presser foot lifter slope 31 and bleeds off pressure the height of foot slope 32 and all becoming
Change.As shown in Figures 2 to 6, the right end of the first swing rod arm 42 of the driving swing rod 40 is equipped with a rotatable roller 70,
The upper end and the left end of driving member 50 for driving the second swing rod arm 43 of swing rod 40 are hinged, and right end and the presser foot lifter of driving member 50 are held
Row component 60 is connected.The driving member 50 can be connecting rod, or steel wire rope, new type auto lift shown in Fig. 2 to Fig. 5
In presser foot device, driving member 50 is a kinematic link.
Above-mentioned new type auto foot lifting mechanism in the running, when power source drives actuator 30 to act, make roller 70 along drive
When presser foot lifter slope 31 on moving part 30 moves, driving swing rod 40 is swung, and passes through driving member 50 and presser foot lifter executive module 60
Driving presser bar 61 moves up, and presser bar 61 drives presser feet synchronously to move up, and realizes presser foot lifter；When power source drives actuator 30 dynamic
Make, make roller 70 along when bleeding off pressure foot slope 32 and moving, driving swing rod 40 is swung, and passes through driving member 50 and lift on actuator 30
Presser feet executive module 60 drives presser bar 61 to move down, and presser bar 61 drives presser feet synchronously to move down, and realization bleeds off pressure foot, so as to fulfill
The automatic needle-foot-lifting of lockstitch button holder.Due to presser foot lifter slope 31 and bleed off pressure foot slope 32 and be all obliquely installed, therefore presser foot lifter slope
Face 31 and bleed off pressure foot slope 32 all have tilt angle theta, which is between presser foot lifter slope 31 and horizontal plane
Angle and bleed off pressure angle between foot slope 32 and horizontal plane；When roller 70 along presser foot lifter slope 31 or bleeds off pressure foot
When slope 32 moves, as shown in figure 8, presser foot lifter slope 31 or bleeding off pressure foot slope 32 and being subject to the normal pressure from roller 70
F, normal pressure F can be decomposed into horizontal force Fx and vertical force Fy, wherein, Fx=F × sin θ, Fy=F × cos θ.Due to tilting
Angle, θ is smaller, and in the present embodiment, presser foot lifter slope 31 and the tilt angle theta for bleeding off pressure foot slope 32 are all 5 °~30 °, excellent
Elect 10 ° or so as, therefore horizontal force Fx is smaller.Principle based on active force and reaction force, roller 70 are subject to presser foot lifter slope
31 or bleed off pressure that the horizontal force that foot slope 32 applies it is also smaller, therefore the driving moment that generates to actuator 30 of roller 70 is also
It is smaller, so as to help to reduce driving moment because of needed for actuator 30 it is excessive caused by insensitive, the stuck, fever of mechanism etc.
Failure.In addition, this application involves new type auto foot lifting mechanism overall structure it is simple, be used only actuator 30, driving pendulum
Bar 40 and driving member 50 can just drive presser bar 61 in presser foot lifter executive module 60 to move up or move down, and significantly reduce into
This.
In the application, the actuator 30 can be a rotating member 33 to rotate, or one to do straight line past
The moving member 34 moved again.When actuator 30 is a rotatable rotating member 33, as shown in Figures 2 to 6, the power source is
One driving motor 20, driving motor 20 can directly be connected with rotating member 33, directly drive rotating member 33 and rotate；Driving motor
20 can also be connected with rotating member 33 indirectly by transmission mechanisms such as gear, synchronous belts, indirectly rotating member 33 be driven to rotate；
In the present embodiment, driving motor 20 directly drives rotating member 33 and rotates.The rotating member 33 is equipped with cam surface 331, described convex
It is constant with the upward slope inclined-plane 332 highly gradually increased, the descending inclined-plane 333 being highly gradually reduced and height on wheel face 331
Joint face 334, one end of the joint face 334, the low side on upward slope inclined-plane 332, high-end, the descending inclined-plane on upward slope inclined-plane 332
333 high-end, descending inclined-plane 333 low side and the other end of joint face 334 are sequentially connected, and the upward slope inclined-plane 332 is under
Slope inclined-plane 333 is symmetrical arranged, and the upward slope inclined-plane 332 forms the presser foot lifter slope 31, and the descending inclined-plane 333 forms institute
It states and bleeds off pressure foot slope 32.Therefore, during driving motor 20 drives rotating member 33 to rotate, when roller 70 is along upward slope inclined-plane
332 when moving up, and lockstitch button holder performs presser foot lifter action；When roller 70 is moved down along descending inclined-plane 333, lockstitch button holder performs
Bleed off pressure foot-propelled work；When roller 70 is moved along joint face 334 is straight, lockstitch button holder performs sewing action and trimming action.
Preferably, on the rotating member 33 formed cam surface 331 generation type have it is following two：Mode one, such as Fig. 9 institutes
Show, a cam path 335 is offered in the periphery of rotating member 33, the groove bottom of 335 lower end of cam path forms cam surface 331；Side
Formula two, as shown in Figure 10 by the groove top face removal of 335 upper end of cam path in mode one, only retains the slot bottom of cam path 335 lower end
Face, i.e.,：The upper surface of rotating member 33 is directly processed into required cam surface 331.
Further, a motor mounting plate 80 for being fixed on casing 10 is equipped in the drive end unit 101 of the casing 10, it is described
Driving motor 20 is vertically installed on the lower face of motor mounting plate 80, driving motor 20 it is vertical up and down extension output shaft from
It is fixed after being upward through in motor mounting plate 80 with 33 phase of rotating member, the fixed plate for installing driving swing rod 40 is located at motor peace
The rear side of loading board 80.Since driving motor 20 is vertical installation, therefore it can be built in casing 10, and then by new type auto lift
Presser foot device is integrally built in the casing 10 of lockstitch button holder, so as to simplify the overall structure of new type auto foot lifting mechanism, is reduced
Its occupied space greatly improves the overall aesthetics of lockstitch button holder.It installs in addition, driving motor 20 is vertical and is built in casing 10
In after, the power source of other mechanisms in lockstitch button holder (such as upper thread cutting mechanism, lower thread cutting mechanism) can be convenient for also using driving electricity
Machine 20, i.e., new type auto foot lifting mechanism easy to implement share a driving motor 20 and same root motor shaft with other mechanisms,
So as to reduce the cost of lockstitch button holder complete machine.
Preferably, as shown in fig. 6, the output shaft of the driving motor 20 is fixed with rotating member 33 by 90 phase of a boss,
The boss 90 includes base plate 91 and from the upper end of base plate 91 connection protuberance protruding upward, the driving motor 20
Output shaft fixed with connection protuberance by multiple screws, the connection protuberance is also fixedly connected with rotating member 33, the bottom plate
Thrust bearing 110 is equipped between portion 91 and motor mounting plate 80.The thrust bearing 110 is by presser foot lifter slope 31 or bleeds off pressure foot
Slope 32 is subject to the component of the normal pressure F from roller 70 in the vertical direction --- and vertical force Fy is converted into horizontal load
F1, horizontal load F1=Fy × μ, μ are the coefficient of friction of thrust bearing 110, therefore μ is very small, is about 0.005, final so that turning
The size for the horizontal resultant Ff that moving part 33 is subject to is：Ff=F × sin θ+F × cos θ × μ.The torque equation T of rotating member 33 is：T
=(F × sin θ+F × cos θ × μ) × R, wherein, R is the radius of gyration of cam surface 331.
As the above analysis：By the presser foot lifter slope 31 being obliquely installed or bleed off pressure foot slope 32 and thrust
The collective effect of bearing 110 farthest reduces the driving torque of rotating member 33 and rubbing for new type auto foot lifting mechanism
It wears consumption, improves the stability of new type auto foot lifting mechanism, while also contribute to reduce the specification and cost of driving motor 20.
When actuator 30 for one can straight reciprocating moving member 34 when, then the power source also be a driving motor
20, driving motor 20 can directly be connected with rotating member 33, directly drive 33 straight reciprocating of rotating member；Driving motor 20
It can also be connected indirectly with moving member 34 by gear, rack linear motion pair, drive 33 straight line of rotating member past indirectly
It is multiple mobile；At this point, as shown in figure 11, on the moving member 34 have an inclined surface 341 being obliquely installed, the inclined surface 341 with
Fixture between horizontal plane is the tilt angle theta, when roller 70 is moved up from 341 low side of inclined surface along inclined surface 341,
Inclined surface 341 forms the presser foot lifter slope 31, and lockstitch button holder performs presser foot lifter action；When roller 70 is high-end from inclined surface 341
When being moved down along inclined surface 341, inclined surface 341 form it is described bleed off pressure foot slope 32, lockstitch button holder execution bleeds off pressure foot-propelled work.It should
Embodiment can equally reduce roller 70 and be subject to presser foot lifter slope 31 or bleed off pressure the horizontal force that foot slope 32 applies it
Size, so as to reduce the size for the driving moment that roller 70 generates actuator 30.
Further, as shown in Figure 3 and Figure 7, the presser foot lifter executive module 60 includes having second to fix swing pivot
The presser feet lifting and swinging bar 62 of O2, presser feet lifting linking member 63 are fixed on the guide plate 64 of casing 10 and stent 65, described to lead
The guide groove 641 extended up and down is offered into plate 64；The front end face of the stent 65 is equipped with a sliding block protruded forward
651, the presser bar 61 is fixed in stent 65；The presser feet lifting and swinging bar 62 is generally L-shaped, the driving member 50
Right end and the upper end in 62 left side of presser feet lifting and swinging bar are hinged, the lower end on 62 right side of presser feet lifting and swinging bar and presser feet liter
The upper end of drop connecting rod 63 is hinged, and the lower end of the presser feet lifting linking member 63 and sliding block 651 are hinged, and the sliding block 651 is located at leads
It can slide up and down into the guide groove 641 of plate 64 and in guide groove 641, i.e. presser feet lifting and swinging bar 62, presser feet lifting linking member
63rd, the stent 65 with sliding block 651 and the guide plate 64 with guide groove 641 form a slider-crank mechanism.In addition, institute
Driving member 50 is stated with presser feet lifting and swinging bar 62, presser feet lifting and swinging bar 62 and presser feet lifting linking member 63 by front and rear extension
Axial screw 66 is hinged.
Preferably, the regulating tank 631 of about one extension is offered in the presser feet lifting linking member 63, for hinged presser feet liter
Drop oscillating rod 62 and the axial screw 66 of presser feet lifting linking member 63 are threaded through in the regulating tank 631；It is covered on the presser bar 61
There is a compression spring 67, as shown in Figures 9 to 11, the upper and lower ends of the compression spring 67 are born against in casing 10 and stent 65.It is lifting
Presser feet and during bleeding off pressure foot, since presser feet is not in contact with cloth, therefore the pressure of compression spring 67 is all acted on stent 65,
So that the axial screw 66 being threaded through in regulating tank 631 leans always in the upper edge of regulating tank 631, lift is performed exactly
Presser feet acts and bleeds off pressure foot-propelled work.After presser feet is put down, then presser feet and cloth are in contact, then the pressure of compression spring 67 is by cloth and pin
Plate is born, therefore the upper edge of the axial screw 66 being threaded through in regulating tank 631 and regulating tank 631 can unclamp.Since regulating tank 631 is
The strip grooves of about one extension, therefore it enables presser foot lifter driving mechanism to be suitable for the cloth of different-thickness, and be also convenient for adjusting
The stroke that section presser bar 61 is moved up or moved down.
Fig. 9 to Figure 11 be the application in new type auto foot lifting mechanism schematic diagram, with it is shown in Fig. 2 to Fig. 5 it is new from
The structure chart of dynamic foot lifting mechanism is compared, and the driving swing rod 40 is H-G-I, and the roller 70 is mounted on driving swing rod 40
At H ends, the driving member 50 is I-E, and the presser feet lifting and swinging plate is E-A-B, and presser feet lifting linking member 63 is B-C,
Presser bar 61 is C-D, and G is that drive the first fixation swing pivot O1, A of swing rod 40 be the of presser feet lifting and swinging bar 62
Two fix swing pivot O2.When the height of roller 70 is constant, driving swing rod 40 is failure to actuate, and presser feet is the state put down, at this
Under state, lockstitch button holder performs sewing action and trimming action.When roller 70 is moved up along presser foot lifter slope 31, driving pendulum
Bar 40 fixes swing pivot O1 counter-clockwise swings around first, and driving swing rod 40 drives presser feet lifting and swinging bar 62 by driving member 50
Swing pivot O2 counter-clockwise swings are fixed around second, presser feet liter is driven under the action of guide groove 641 and sliding block 651 cooperate
Drop connecting rod 63 and stent 65 move upwardly together, and presser bar 61 and presser feet is driven synchronously to move up, and realize presser foot lifter.Work as rolling
For son 70 along when bleeding off pressure foot slope 32 and moving down, driving swing rod 40 fixes swing pivot O1 clockwise oscillations, driving around first
Swing rod 40 drives presser feet lifting and swinging bar 62 to fix swing pivot O2 clockwise oscillations around second by driving member 50, in guide groove
641 and sliding block 651 cooperate under the action of presser feet lifting linking member 63 and stent 65 is driven to move downwardly together, drive presser bar
61 and presser feet synchronously move down, realization bleed off pressure foot.
The application also provides a kind of lockstitch button holder, as depicted in figs. 1 and 2, including casing 10, in the casing 10 installation just like
The upper new type auto foot lifting mechanism.
In conclusion this application involves new type auto foot lifting mechanism while automatic needle-foot-lifting is realized, it can be maximum
The driving moment of entire new type auto foot lifting mechanism is reduced to degree, had both reduced zero caused by frequent presser foot lifter action
Part is worn, and can reduce the power for the driving motor 20 for driving new type auto foot lifting mechanism action, new so as to greatly improve
The stability of automatic needle-foot-lifting mechanism.In addition, the application remove end presser foot lifter executive module 60 outside, only used drive link,
Swing rod 40 and actuator 30 are driven, it is simple in structure.
So the present invention effectively overcomes various shortcoming of the prior art and has high industrial utilization.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe
Know the personage of this technology all can carry out modifications and changes under the spirit and scope without prejudice to the present invention to above-described embodiment.Cause
This, those of ordinary skill in the art is complete without departing from disclosed spirit and institute under technological thought such as
Into all equivalent modifications or change, should by the present invention claim be covered.
Claims (11)
1. a kind of new type auto foot lifting mechanism, it is characterised in that：The new type auto foot lifting mechanism includes power source, installation
Swing pivot is fixed in the casing (10) and by the actuator (30) of power source drive, in casing (10) and with first
(O1) driving swing rod (40), the driving member (50) extended along the length direction of casing (10) and in casing (10)
Presser foot lifter executive module (60), there is presser bar (61), on the actuator (30) in the presser foot lifter executive module (60)
With the presser foot lifter slope (31) being all obliquely installed and foot slope (32) is bled off pressure, one end installation of the driving swing rod (40)
There is a rotatable roller (70), one end of the other end and driving member (50) of driving swing rod (40) is hinged, driving member (50)
The other end is connected with presser foot lifter executive module (60)；When power source drive actuator (30) action, make roller (70) along driving
When presser foot lifter slope (31) on part (30) is mobile, the presser bar (61) moves up；When power source drives actuator (30) dynamic
Make, make roller (70) along when bleeding off pressure foot slope (32) movement, the presser bar (61) moves down on actuator (30).
2. new type auto foot lifting mechanism according to claim 1, it is characterised in that：The power source is a driving motor
(20), the actuator (30) is one by the direct or indirect driving of driving motor (20) and rotatable rotating member (33), this turn
Moving part (33) is equipped with cam surface (331), have on the cam surface (331) upward slope inclined-plane (332) that height gradually increases, with
And the descending inclined-plane (333) that is gradually reduced of height, the upward slope inclined-plane (332) and descending inclined-plane (333) are arranged symmetrically, it is described on
Slope inclined-plane (332) forms the presser foot lifter slope (31), and foot slope is bled off pressure described in descending inclined-plane (333) composition
(32)。
3. new type auto foot lifting mechanism according to claim 2, it is characterised in that：It opens the periphery of the rotating member (33)
Equipped with a cam path (335), the groove bottom of the cam path (335) forms the cam surface (331).
4. new type auto foot lifting mechanism according to claim 2, it is characterised in that：The upper surface of the rotating member (33)
For the cam surface (331).
5. new type auto foot lifting mechanism according to claim 2, it is characterised in that：It is solid that one is equipped in the casing (10)
Due to the motor mounting plate (80) of casing (10), the driving motor (20) is vertically installed at the lower face of motor mounting plate (80)
On, the output shaft of the driving motor (20) vertically extends and is upward through from motor mounting plate (80) rear with turning up and down
Moving part (33) is fixedly connected.
6. new type auto foot lifting mechanism according to claim 5, it is characterised in that：The output of the driving motor (20)
Axis is mutually fixed with rotating member (33) by a boss (90), and the boss (90) includes base plate (91) and from base plate
(91) upper end connection protuberance protruding upward, the output shaft of the driving motor (20) are fixed in connection protuberance, the company
It connects protrusion to be fixed in rotating member (33), thrust bearing (110) is equipped between the base plate (91) and motor mounting plate (80).
7. new type auto foot lifting mechanism according to claim 1, it is characterised in that：The power source is a driving motor
(20), the actuator (30) for one by driving motor (20) directly or indirectly driving and can straight reciprocating moving member
(34), there is an inclined surface being obliquely installed (341), which forms the presser foot lifter on the moving member (34)
Slope (31) and bleed off pressure foot slope (32).
8. the new type auto foot lifting mechanism according to Claims 2 or 3 or 4 or 7, it is characterised in that：The presser foot lifter is oblique
Slope surface (31) and the tilt angle theta for bleeding off pressure foot slope (32) are all 5 °~30 °.
9. new type auto foot lifting mechanism according to claim 1, it is characterised in that：The presser foot lifter executive module (60)
Including there is the presser feet lifting and swinging bar (62) of the second fixation swing pivot (O2), presser feet lifting linking member (63), be fixed on casing
(10) guide plate (64) and stent (65) offer the guide groove (641) extended up and down, institute in the guide plate (64)
It states stent (65) and is equipped with a sliding block (651) protruded, the presser bar (61) is fixed in stent (65), the driving member
(50) one end of the other end and presser feet lifting and swinging bar (62) is hinged, the other end of the presser feet lifting and swinging bar (62) with
The upper end of presser feet lifting linking member (63) is hinged, and the lower end of the presser feet lifting linking member (63) and sliding block (651) are hinged, the cunning
Block (651) is located in the guide groove (641) of guide plate (64) and can be slided up and down in guide groove (641).
10. new type auto foot lifting mechanism according to claim 9, it is characterised in that：The presser feet lifting linking member (63)
In offer the regulating tank (631) of about one extension, the presser feet lifting and swinging bar (62) passes through with presser feet lifting linking member (63)
One axial screw (66) being threaded through in the regulating tank (631) is hinged；A compression spring (67) is cased on the presser bar (61),
The upper and lower ends of the compression spring (67) are born against in casing (10) and stent (65).
11. a kind of lockstitch button holder, including casing (10), it is characterised in that：Installation is just like claim 1-10 in the casing (10)
The new type auto foot lifting mechanism of any one of them.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611077991.9A CN108118456B (en) | 2016-11-29 | 2016-11-29 | Automatic presser foot lifting mechanism and buttonholing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611077991.9A CN108118456B (en) | 2016-11-29 | 2016-11-29 | Automatic presser foot lifting mechanism and buttonholing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108118456A true CN108118456A (en) | 2018-06-05 |
| CN108118456B CN108118456B (en) | 2023-07-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611077991.9A Active CN108118456B (en) | 2016-11-29 | 2016-11-29 | Automatic presser foot lifting mechanism and buttonholing machine |
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| Country | Link |
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| CN (1) | CN108118456B (en) |
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| JP2007014810A (en) * | 2006-10-26 | 2007-01-25 | Juki Corp | Sewing machine |
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| CN105177871A (en) * | 2015-10-26 | 2015-12-23 | 湖州织里韩衣童社服饰有限公司 | Cloth pressing device of bartack sewing machine |
| CN206266823U (en) * | 2016-11-29 | 2017-06-20 | 拓卡奔马机电科技有限公司 | A kind of new type auto foot lifting mechanism and lockstitch button holder |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000254375A (en) * | 1999-03-05 | 2000-09-19 | Brother Ind Ltd | Intermittent presser device of sewing machine |
| CN1982524A (en) * | 2005-12-12 | 2007-06-20 | 重机公司 | Center presser mechanism for sewing machine |
| JP2007014810A (en) * | 2006-10-26 | 2007-01-25 | Juki Corp | Sewing machine |
| CN103710905A (en) * | 2012-09-28 | 2014-04-09 | Juki株式会社 | Button hole catcher sewing machine |
| CN203795131U (en) * | 2014-04-29 | 2014-08-27 | 浙江美机缝纫机有限公司 | Drive mechanism for thread cutting and presser foot lifting mechanisms of sewing machine |
| CN105177871A (en) * | 2015-10-26 | 2015-12-23 | 湖州织里韩衣童社服饰有限公司 | Cloth pressing device of bartack sewing machine |
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| Publication number | Publication date |
|---|---|
| CN108118456B (en) | 2023-07-07 |
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