CN109554849A - A kind of automatic shearing of flat seam machine and the synchronization mechanism of automatic needle-foot-lifting - Google Patents
A kind of automatic shearing of flat seam machine and the synchronization mechanism of automatic needle-foot-lifting Download PDFInfo
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- CN109554849A CN109554849A CN201910106669.1A CN201910106669A CN109554849A CN 109554849 A CN109554849 A CN 109554849A CN 201910106669 A CN201910106669 A CN 201910106669A CN 109554849 A CN109554849 A CN 109554849A
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- connecting rod
- cam
- lifting
- presser foot
- seam machine
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B65/00—Devices for severing the needle or lower thread
- D05B65/02—Devices for severing the needle or lower thread controlled by the sewing mechanisms
-
- 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 automatic shearing of flat seam machine and the synchronization mechanisms of automatic needle-foot-lifting, belong to technical field of sewing machines.The problem of it solves existing flat seam machine after presser feet pull rod or the lengthening of hooking bar axial length, fluctuation of service.The automatic shearing of this flat seam machine and the synchronization mechanism of automatic needle-foot-lifting, cam one is provided on the output shaft of motor, one end of trimming connecting rod is articulated on flat seam machine shell, the other end of trimming connecting rod is articulated with one end of trimming drive rod, driven pin one is along trimming driving cam part sliding, one end of presser foot lifter connecting rod is articulated on flat seam machine shell, the other end of presser foot lifter connecting rod is articulated with one end of presser foot lifter drive rod, the synchronous drive device that the synchronous operation of presser foot lifter connecting rod is driven when the rotation of the output shaft of motor is provided between presser foot lifter connecting rod and the output shaft of motor.Automatic shearing of the present invention, automatic needle-foot-lifting are stable.
Description
Technical field
The invention belongs to technical field of sewing machines, it is related to a kind of automatic shearing of flat seam machine and the synchronous machine of automatic needle-foot-lifting
Structure.
Background technique
With the rapid development of science and technology, the mechanization degree of clothes manufacture is higher and higher, in clothes manufacturing technology field, with
Sewing device based on industrial sewing machine is very more, such as flat seam machine, overedger etc., sewing machine generally comprise head, base with
And driving member etc..
Currently, sewing machine is in charging, the operation of presser feet lifted and depressed generally uses manual mode or passes through electricity
It controls signal and carries out automated manner；Existing people generally select the mode of automatic needle-foot-lifting, such as Chinese patent Patent No.:
A kind of built-in automatic needle-foot-lifting structure of sewing machine described in " 201310113929.0 ", specific structure include: casing, and one
A uprights, uprights are interior to be equipped with a cavity, and linear actuator is fixedly mounted in the cavity, and linear actuator includes one
Root can be with the draw bar of straight reciprocating motion；Lever afterwards, its rear end are connected with the end of draw bar, and the front end of rear lever includes
Two pin holes, wherein pin hole is rotatably connected on casing by pin shaft before first, pin hole before rear lever rear end to first
Distance of the pin hole to pin hole before first before distance is greater than second；Preceding lever, including three pin holes, the first pin hole can be turned by pin shaft
It is connected on casing dynamicly；Second pin hole is hinged with presser feet lifter plate；Pull rod is sold before the rear end of pull rod and the second of rear lever
Hole is hinged, and the front end of pull rod and the third pin hole of preceding lever are hinged.But the automatic needle-foot-lifting structure uses linear actuator
Lever rotation after directly driving, therefore the phenomenon that being easy to produce pause detent when being driven.
The hooking bar of automatic shearing is generally carried out automatically controlling by electromagnet.When needing to carry out front operation, by one
A magnet control hooking bar moves back and forth, since electromagnet differs greatly in actuation with speed when flicking, hooking bar
Biggish sound and shaking are often generated when moving back and forth, and then be possible to influence sewing machine steady operation.
For two kinds of above-mentioned situations, occurs both a kind of automatic driving presser feet pull rod, hooking bar on existing market and come
The dynamic driving device of return, such as Chinese patent Patent No.: a kind of automatic shearing as described in " 201610614186.9 " and automatic
The driving device of presser foot lifter, specific structure include presser feet drive rod, trimming drive rod, stepper motor, cam body, presser foot lifter
Connecting rod and trimming connecting rod, cam body are arranged on the output shaft of stepper motor, and presser foot lifter drive is provided on cam body
Moving cam face and trimming drive cam surface；One end of presser foot lifter connecting rod is articulated on sewing machine shell, presser foot lifter connecting rod
The other end is articulated with one end of presser foot lifter drive rod, and the first driven pin, the first follower pin are additionally provided in presser foot lifter connecting rod
Son is along presser foot lifter driving cam surface sliding；One end of trimming connecting rod is articulated on sewing machine shell, trimming connecting rod it is another
One end is hinged with trimming drive rod, and the second driven pin is additionally provided in trimming connecting rod, and the second driven pin drives along trimming
The sliding of moving cam face；It includes basic circle face and lifting curve that presser foot lifter, which drives cam surface and trimming driving cam surface,；Work as presser foot lifter
When drive rod and trimming drive rod are in initial state, two driven pins are born against on corresponding basic circle face；Stepping
For motor when initial state drives cam body certain angle clockwise, one of them driven pin enters lift song from basic circle face
Face, another driven pin slide on basic circle face；Stepper motor drives cam body certain angle in initial state counterclockwise
When, another driven pin enters lifting curve from basic circle face, and a driven pin slides on basic circle face.
In such a configuration, though can solve hooking bar, generate when presser feet pull rod is moved back and forth by magnet control it is larger
Sound and shaking, but the presser foot lifter driving cam surface and trimming driving cam surface on the same cam body and be integrated knot
Structure, since the hooking bar of trimming is in the pedestal of housing forward end, the presser feet pull rod of presser foot lifter is in the pedestal of housing rear end,
The axial distance of the two is larger, realizes automatic shearing and automatic needle-foot-lifting simultaneously by same cam body and wants axially prolonged pressure
Foot pull rod or axially prolonged hooking bar, after presser feet pull rod or hooking bar axial length lengthen, fluctuation of service, when operation, is easy
There is noise, service life is short.
Summary of the invention
The purpose of the present invention is being directed to the above-mentioned problems in the prior art, provide a kind of structure it is simple, can be simultaneously
Driving automatic shearing and automatic needle-foot-lifting and also it is avoided that fluctuation of service, noise, flush joint with long service life occurs in when operation
The automatic shearing of machine and the synchronization mechanism of automatic needle-foot-lifting.
Object of the invention can be realized by the following technical scheme: a kind of automatic shearing and automatic needle-foot-lifting of flat seam machine
Synchronization mechanism, including the motor that is set on flat seam machine shell and be set to the intracorporal trimming connecting rod of flat seam machine shell, trimming
Drive rod, presser foot lifter connecting rod and presser foot lifter drive rod are provided with cam one, the cam on the output shaft of the motor
On one there is trimming to drive cam part, one end of the trimming connecting rod is articulated on flat seam machine shell, and the trimming connects
The other end of extension bar is articulated with one end of trimming drive rod, and driven pin one, follower pin are provided in the trimming connecting rod
Son one is along trimming driving cam part sliding, which is characterized in that one end of the presser foot lifter connecting rod is articulated with flush joint casing
On body, the other end of the presser foot lifter connecting rod is articulated with one end of presser foot lifter drive rod, the presser foot lifter connecting rod and
The synchronous driving that the synchronous operation of presser foot lifter connecting rod is driven when the rotation of the output shaft of motor is provided between the output shaft of motor
Device.
In actually manufacture, the synchronous drive device being arranged between the presser foot lifter connecting rod and the output shaft of motor, and lead to
Crossing synchronous drive device causes automatic shearing and automatic needle-foot-lifting to run simultaneously.
In the above-mentioned a kind of automatic shearing of flat seam machine and the synchronization mechanism of automatic needle-foot-lifting, the synchronous driving dress
It sets including driven shaft, the cam with circumferentially fixed synchronizing wheel one and one axially spaced-apart of synchronizing wheel distribution on the driven shaft
Two, there is on the output shaft of the motor circumferentially fixed synchronizing wheel two, the synchronizing wheel one and the synchronizing wheel two
Transmission cooperates, and on the cam two also there is presser foot lifter to drive cam part, is provided in the presser foot lifter connecting rod driven
Pin two, driven pin two are slided along presser foot lifter driving cam part.In actually manufacture, the synchronizing wheel one, synchronizing wheel two can
To select for synchronous gear or single-end or synchronous driving wheel.
As another structure, in the above-mentioned a kind of automatic shearing of flat seam machine and the synchronization mechanism of automatic needle-foot-lifting,
The synchronous drive device can be with are as follows: the synchronous drive device includes driven shaft, has week on the driven shaft
The cam two being axially spaced apart to fixed crank and crank has circumferentially fixed company on the output shaft of the motor
Bar, the crank are connect with link transmission, also there is presser foot lifter to drive cam part, the presser foot lifter on the cam two
Driven pin two is provided in connecting rod, driven pin two is slided along presser foot lifter driving cam part.It is passed by crank and connecting rod
It is dynamic to connect the output shaft and driven shaft stable transmission for causing motor.
As another structure, in the above-mentioned a kind of automatic shearing of flat seam machine and the synchronization mechanism of automatic needle-foot-lifting,
There is in the roller being axially distributed circumferential rotary setting on the crank face of the crank of the synchronous drive device, the connecting rod is in
There is cambered way, the roller and the cambered way are slidably matched and make the crank, connecting rod on arc shape and the connecting rod
Transmission connection.When initial state rotates clockwise certain angle, roller slides in cambered way as sky the output shaft of motor
Cooperation；When motor returns to initial state and when initial state rotates by a certain angle counterclockwise, it is sliding that roller is radially against arc
The starting point in road simultaneously drives driven shaft to rotate by a certain angle to make two synchronous operation of cam.
As another structure, in the above-mentioned a kind of automatic shearing of flat seam machine and the synchronization mechanism of automatic needle-foot-lifting,
One end of the connecting rod of the synchronous drive device is hinged with attachment base, and the connecting rod is set to institute by the way that attachment base is circumferentially fixed
On the output shaft for the motor stated.
In the above-mentioned a kind of automatic shearing of flat seam machine and the synchronization mechanism of automatic needle-foot-lifting, the driven shaft and institute
The output shaft parallel interval for the motor stated is distributed, and the both ends of the driven shaft are movably connected on flat seam machine shell.
In the above-mentioned a kind of automatic shearing of flat seam machine and the synchronization mechanism of automatic needle-foot-lifting, the cam one includes
The cam body one of disk-shaped shape, the trimming driving cam part are located on one end end face of the cam body one, institute
Both cam body one and trimming driving cam parts stated axially are distributed and the rwo is linked together structure, and the cam two wraps
The cam body two of disk-shaped shape is included, the presser foot lifter driving cam part is located at one end end face of the cam body two
On, both the cam body two, presser foot lifter driving cam part are axially distributed and the rwo is linked together structure.
In the above-mentioned a kind of automatic shearing of flat seam machine and the synchronization mechanism of automatic needle-foot-lifting, the trimming driving is convex
Wheel portion includes rounded flat cam body, and track groove and the rail through cam body are circumferentially provided on the cam body
Road slot includes basic circle stroke groove one, lifting curve stroke groove one and lifting curve stroke groove two, one He of basic circle stroke groove
Cam body is arranged concentrically, and lifting curve stroke groove one is to the central protuberance of cam body, and the lifting curve stroke groove two is to convex
It protrudes and is in the end of lifting curve stroke groove one and extends to one head end of basic circle stroke groove, the lift in the periphery of wheel body
One arc transition of curved surface stroke groove two and lifting curve stroke groove；The presser foot lifter driving cam part includes basic circle against stroke
Against stroke portion, the basic circle is arranged concentrically against stroke portion and cam body two for portion and lifting curve, lifting curve against
The outside eccentric setting in stroke portion, the basic circle are against the junction of both stroke portions one end against stroke portion and lifting curve
The junction of arc transition and the rwo other end has radially-arranged position-arresting part.
In the above-mentioned a kind of automatic shearing of flat seam machine and the synchronization mechanism of automatic needle-foot-lifting, the driven pin one
One end rotate in a circumferential direction and be set in trimming connecting rod, the other end of the driven pin one is provided with circumferential rotatable work
Dynamic set one, the movable sleeve one is adapted to track groove and the movable sleeve one is moved back and forth along track groove.
In the above-mentioned a kind of automatic shearing of flat seam machine and the synchronization mechanism of automatic needle-foot-lifting, the driven pin two
One end rotate in a circumferential direction and be set to the medium position of presser foot lifter connecting rod, the other end of the driven pin two is provided with circumferential direction
Rotatable movable sleeve two, the movable sleeve two are moved back and forth along the periphery wall of presser foot lifter driving cam part.
Compared with prior art, the advantages of the synchronization mechanism of the automatic shearing and automatic needle-foot-lifting of this flat seam machine are as follows: pass through
Synchronous drive device, which is arranged, to be correspondingly arranged cam one, cam two for the corresponding position of presser feet pull rod or hook line bar, by cam
One, the synchronous driving presser feet pull rod of cam two, hook line bar cause automatic shearing, automatic needle-foot-lifting to avoid fluctuation of service, avoid making an uproar
Sound, stability is good, shakes and noise is few, long service life.
Detailed description of the invention
Fig. 1 is the schematic perspective view of the automatic shearing of this flat seam machine and the synchronization mechanism of automatic needle-foot-lifting.
Fig. 2 is the stereochemical structure signal of cam one in the automatic shearing of this flat seam machine and the synchronization mechanism of automatic needle-foot-lifting
Figure.
Fig. 3 is the stereochemical structure signal of cam two in the automatic shearing of this flat seam machine and the synchronization mechanism of automatic needle-foot-lifting
Figure.
Fig. 4 is the schematic perspective view of the automatic shearing of this flat seam machine and the synchronization mechanism of automatic needle-foot-lifting.
In figure, 1, motor；2, trimming connecting rod；3, trimming drive rod；4, presser foot lifter connecting rod；5, presser foot lifter drive rod；
6, cam one；7, driven pin one；8, driven shaft；9, synchronizing wheel one；10, cam two；11, synchronizing wheel two；12, driven pin
Two；13, crank；14, connecting rod；15, roller；16, cambered way；17, attachment base；18, cam body one；19, cam body two；
20, cam body；21, basic circle stroke groove one；22, lifting curve stroke groove one；23, lifting curve stroke groove two；24, basic circle against
Stroke portion；25, lifting curve is against stroke portion；26, position-arresting part；27, movable sleeve one；28, movable sleeve two.
Specific embodiment
Following is a specific embodiment of the present invention in conjunction with the accompanying drawings, technical scheme of the present invention will be further described,
However, the present invention is not limited to these examples.
Embodiment one: as shown in Figure 1, Figure 2 and Figure 3, the automatic shearing of this flat seam machine and the synchronization mechanism of automatic needle-foot-lifting,
Mainly by the motor 1 that is set on flat seam machine shell and be set to the intracorporal trimming connecting rod 2 of flat seam machine shell, trimming drive rod 3,
Presser foot lifter connecting rod 4 and presser foot lifter drive rod 5 form, and cam 1 is provided on the output shaft of motor 1, has on cam 1 and cuts
Line drives cam part, and one end of trimming connecting rod 2 is articulated on flat seam machine shell, and the other end of trimming connecting rod 2, which is articulated with, to be cut
One end of line drive rod 3, driven pin 1 is provided in trimming connecting rod 2, and driven pin 1 drives cam part along trimming
Sliding, one end of presser foot lifter connecting rod 4 are articulated on flat seam machine shell, and the other end of presser foot lifter connecting rod 4 is articulated with presser foot lifter
One end of drive rod 5 is provided with the drive when the rotation of the output shaft of motor 1 between presser foot lifter connecting rod 4 and the output shaft of motor 1
The synchronous drive device that presser foot lifter connecting rod 4 is run simultaneously.
In actually manufacture, the specific embodiment of the synchronous drive device are as follows: be mainly made of driven shaft 8, driven shaft 8
It is upper that there is circumferentially fixed synchronizing wheel 1 and the cam 2 10 of one 9 axially spaced-apart of synchronizing wheel distribution, have on the output shaft of motor 1
There is circumferentially fixed synchronizing wheel 2 11, synchronizing wheel 1 makes the fortune synchronous with cam 1 of cam 2 10 with the transmission cooperation of synchronizing wheel 2 11
It goes, on cam 2 10 also there is presser foot lifter to drive cam part, be provided with driven pin 2 12, follower pin in presser foot lifter connecting rod 4
Son 2 12 is along presser foot lifter driving cam part sliding；In practical application, the output shaft of the driven shaft 8 and the motor 1 is flat
Row interval distribution, the both ends of driven shaft 8 are movably connected on flat seam machine shell.
In actually manufacture, which is mainly made of the cam body 1 of disk-shaped shape, and trimming drives cam part
On one end end face of cam body 1, both cam body 1 and trimming driving cam part are axially distributed and the rwo
It is linked together structure, cam 2 10 is mainly made of the cam body 2 19 of disk-shaped shape, and it is convex that presser foot lifter drives cam part to be located at
On one end end face for taking turns ontology 2 19, both cam body 2 19, presser foot lifter driving cam part are axially distributed and the rwo is linked as
Integral structure；Trimming driving cam part is mainly made of rounded flat cam body 20, is circumferentially provided on cam body 20
Through cam body 20 track groove and the track groove include basic circle stroke groove 1, lifting curve stroke groove 1 and lifting curve
Stroke groove 2 23, basic circle stroke groove 1 and cam body 20 are arranged concentrically, and lifting curve stroke groove 1 is into cam body 20
Cardiac prominence rises, and lifting curve stroke groove 2 23 is protruded to the periphery of cam body 20 and is in the end of lifting curve stroke groove 1 simultaneously
Extend to one 21 head end of basic circle stroke groove, one 22 arc transition of lifting curve stroke groove 2 23 and lifting curve stroke groove；Lift pressure
Foot driving cam part is mainly made of against stroke portion 24 and lifting curve against stroke portion 25 basic circle, and basic circle is against stroke portion 24
It is arranged concentrically with cam body 2 19, for lifting curve against the outside eccentric setting in stroke portion 25, basic circle is against stroke portion 24 and rises
Journey curved surface has radial point against the junction of both stroke portions 25 one end for the junction of arc transition and the rwo other end
The position-arresting part 26 of cloth.
In actually manufacture, one end of the driven pin 1, which rotates in a circumferential direction, to be set in trimming connecting rod 2, driven pin
One 7 other end is provided with circumferential rotatable movable sleeve 1, and movable sleeve 1 is adapted to track groove and the movable sleeve 1
It is moved back and forth along track groove；One end of driven pin 2 12, which rotates in a circumferential direction, is set to the medium position of presser foot lifter connecting rod 4, driven
The other end of pin 2 12 is provided with circumferential rotatable movable sleeve 2 28, and movable sleeve 2 28 is outer along presser foot lifter driving cam part
Peripheral wall moves back and forth.
Embodiment two: as shown in figure 4, the technical solution of the present embodiment is basically the same as the first embodiment, and difference exists
In: synchronous drive device includes driven shaft 8, is distributed on driven shaft 8 with circumferentially fixed crank 13 and 13 axially spaced-apart of crank
Cam 2 10, there is circumferentially fixed connecting rod 14, crank 13 and the transmission connection of connecting rod 14 make cam two on the output shaft of motor 1
10 run simultaneously with cam 1, also there is presser foot lifter to drive cam part on cam 2 10, be provided in presser foot lifter connecting rod 4 from
Dynamic pin 2 12, driven pin 2 12 are slided along presser foot lifter driving cam part；In practical application, the crank 13 of the crank 13
There is circumferential rotary setting on face is in the roller 15 being axially distributed, and has cambered way on the arc-shaped shape of connecting rod 14 and the connecting rod 14
16, roller 15 is slidably matched with the cambered way 16 makes the crank 13, connecting rod 14 be sequentially connected.
In actually manufacture, one end of the connecting rod 14 is hinged with attachment base 17, and connecting rod 14 is circumferentially fixed by attachment base 17
On the output shaft of motor 1.
Specific embodiment described herein is only an example for the spirit of the invention.The neck of technology belonging to the present invention
The technical staff in domain can make various modifications or additions to the described embodiments or replace by a similar method
In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.
Although motor 1 is used more herein；Trimming connecting rod 2；Trimming drive rod 3；Presser foot lifter connecting rod 4；Lift pressure
Foot drive rod 5；Cam 1；Driven pin 1；Driven shaft 8；Synchronizing wheel 1；Cam 2 10；Synchronizing wheel 2 11；Driven pin
2 12；Crank 13；Connecting rod 14；Roller 15；Cambered way 16；Attachment base 17；Cam body 1；Cam body 2 19；Cam
Body 20；Basic circle stroke groove 1；Lifting curve stroke groove 1；Lifting curve stroke groove 2 23；Basic circle is against stroke portion 24；It rises
Journey curved surface is against stroke portion 25；Position-arresting part 26；Movable sleeve 1；The terms such as movable sleeve 2 28, but be not precluded and use other arts
A possibility that language.The use of these items is only for be more convenient to describe and explain essence of the invention；It is construed as
Any additional limitation is disagreed with spirit of that invention.
Claims (10)
1. a kind of automatic shearing of flat seam machine and the synchronization mechanism of automatic needle-foot-lifting, including the motor being set on flat seam machine shell
(1) the intracorporal trimming connecting rod (2) of flat seam machine shell, trimming drive rod (3), presser foot lifter connecting rod (4) and presser foot lifter are set to and
Drive rod (5) is provided with cam one (6) on the output shaft of the motor (1), on the cam one (6) there is trimming to drive
The one end in moving cam portion, the trimming connecting rod (2) is articulated on flat seam machine shell, the trimming connecting rod (2) it is another
One end is articulated with one end of trimming drive rod (3), is provided with driven pin one (7), follower pin in the trimming connecting rod (2)
Sub one (7) are along trimming driving cam part sliding, which is characterized in that one end of the presser foot lifter connecting rod (4) is articulated with flat
It stitches on casing body, the other end of the presser foot lifter connecting rod (4) is articulated with one end of presser foot lifter drive rod (5), the lift
It is provided between presser feet connecting rod (4) and the output shaft of motor (1) and drives presser foot lifter connection when the rotation of the output shaft of motor (1)
The synchronous drive device of bar (4) synchronous operation.
2. a kind of automatic shearing of flat seam machine according to claim 1 and the synchronization mechanism of automatic needle-foot-lifting, feature exist
In the synchronous drive device includes driven shaft (8), has circumferentially fixed synchronizing wheel one (9) on the driven shaft (8)
With the cam two (10) of synchronizing wheel one (9) axially spaced-apart distribution, with circumferentially fixed same on the output shaft of the motor (1)
Two (11) of step wheel, the synchronizing wheel one (9) and the synchronizing wheel two (11) are driven and cooperate, on the cam two (10) also
Cam part is driven with presser foot lifter, is provided with driven pin two (12), driven pin two in the presser foot lifter connecting rod (4)
(12) along presser foot lifter driving cam part sliding.
3. a kind of automatic shearing of flat seam machine according to claim 1 and the synchronization mechanism of automatic needle-foot-lifting, feature exist
In, the synchronous drive device include driven shaft (8), on the driven shaft (8) with circumferentially fixed crank (13) with
The cam two (10) of crank (13) axially spaced-apart distribution, has circumferentially fixed connecting rod on the output shaft of the motor (1)
(14), the crank (13) and connecting rod (14) are sequentially connected, and also there is presser foot lifter to drive cam on the cam two (10)
Portion, driven pin two (12) is provided in the presser foot lifter connecting rod (4), and driven pin two (12) drives convex along presser foot lifter
Wheel portion sliding.
4. a kind of automatic shearing of flat seam machine according to claim 3 and the synchronization mechanism of automatic needle-foot-lifting, feature exist
In there is in the roller (15) being axially distributed, the connecting rod circumferential rotary setting on crank (13) face of the crank (13)
(14) there are cambered way (16) on arc-shaped shape and the connecting rod (14), the roller (15) and the cambered way (16)
Being slidably matched makes the crank (13), connecting rod (14) transmission connection.
5. a kind of automatic shearing of flat seam machine according to claim 4 and the synchronization mechanism of automatic needle-foot-lifting, feature exist
In one end of the connecting rod (14) is hinged with attachment base (17), and the connecting rod (14) is circumferentially fixed by attachment base (17)
On the output shaft of the motor (1).
6. a kind of automatic shearing of flat seam machine according to claim 2 or 4 and the synchronization mechanism of automatic needle-foot-lifting, feature
It is, the output shaft parallel interval of the driven shaft (8) and the motor (1) is distributed, the both ends of the driven shaft (8)
It is movably connected on flat seam machine shell.
7. a kind of automatic shearing of flat seam machine according to claim 6 and the synchronization mechanism of automatic needle-foot-lifting, feature exist
In the cam one (6) includes the cam body one (18) of disk-shaped shape, and the trimming driving cam part is located at described
On one end end face of cam body one (18), the cam body one (18) and the axial distribution of trimming driving both cam part and
The rwo is linked together structure, and the cam two (10) includes the cam body two (19) of disk-shaped shape, the presser foot lifter
Driving cam part is located on one end end face of the cam body two (19), and the cam body two (19), presser foot lifter drive
Both moving cam portions are axially distributed and the rwo is linked together structure.
8. a kind of automatic shearing of flat seam machine according to claim 7 and the synchronization mechanism of automatic needle-foot-lifting, feature exist
In the trimming driving cam part includes rounded flat cam body (20), and the cam body is circumferentially set on (20)
It is equipped with the track groove for running through cam body (20) and the track groove includes basic circle stroke groove one (21), lifting curve stroke groove one (22)
With lifting curve stroke groove two (23), the basic circle stroke groove one (21) and cam body (20) are arranged concentrically, lifting curve row
Central protuberance of the journey slot one (22) to cam body (20), periphery of the lifting curve stroke groove two (23) to cam body (20)
It protrudes and is in the end of lifting curve stroke groove one (22) and extends to basic circle stroke groove one (21) head end, the lift is bent
Face stroke groove two (23) and lifting curve stroke groove one (22) arc transition；The presser foot lifter driving cam part includes that basic circle supports
By stroke portion (24) and lifting curve against stroke portion (25), the basic circle is against stroke portion (24) and cam body two (19)
It is arranged concentrically, for lifting curve against stroke portion (25) outside eccentric setting, the basic circle is bent against stroke portion (24) and lift
Face has radial distribution against the junction of both stroke portion (25) one end for the junction of arc transition and the rwo other end
Position-arresting part (26).
9. a kind of automatic shearing of flat seam machine according to claim 8 and the synchronization mechanism of automatic needle-foot-lifting, feature exist
In one end of the driven pin one (7), which rotates in a circumferential direction, to be set on trimming connecting rod (2), the driven pin one (7)
The other end be provided with circumferential rotatable movable sleeve one (27), the movable sleeve one (27) is adapted to track groove and the activity
One (27) are covered to move back and forth along track groove.
10. a kind of automatic shearing of flat seam machine according to claim 9 and the synchronization mechanism of automatic needle-foot-lifting, feature exist
In, one end of the driven pin two (12), which rotates in a circumferential direction, is set to the medium position of presser foot lifter connecting rod (4), it is described from
The other end of dynamic pin two (12) is provided with circumferential rotatable movable sleeve two (28), and the movable sleeve two (28) is along presser foot lifter
The periphery wall of cam part is driven to move back and forth.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910106669.1A CN109554849A (en) | 2019-02-02 | 2019-02-02 | A kind of automatic shearing of flat seam machine and the synchronization mechanism of automatic needle-foot-lifting |
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|---|---|---|---|
| CN201910106669.1A CN109554849A (en) | 2019-02-02 | 2019-02-02 | A kind of automatic shearing of flat seam machine and the synchronization mechanism of automatic needle-foot-lifting |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN110184756A (en) * | 2019-07-02 | 2019-08-30 | 阮健明 | A kind of automatic shearing and presser foot lifting device |
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| CN110184756A (en) * | 2019-07-02 | 2019-08-30 | 阮健明 | A kind of automatic shearing and presser foot lifting device |
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| CN110453392A (en) * | 2019-09-15 | 2019-11-15 | 台州市速普机电有限公司 | A kind of thread-trimming lifter-presser foot integrated device |
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