CN208023208U - A kind of foot lifting mechanism of sewing machine - Google Patents
A kind of foot lifting mechanism of sewing machine Download PDFInfo
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- CN208023208U CN208023208U CN201820372796.7U CN201820372796U CN208023208U CN 208023208 U CN208023208 U CN 208023208U CN 201820372796 U CN201820372796 U CN 201820372796U CN 208023208 U CN208023208 U CN 208023208U
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Abstract
The utility model provides a kind of foot lifting mechanism of sewing machine, belongs to sewing machine technique field.It solves the problems such as existing foot lifting mechanism installation is inconvenient.The foot lifting mechanism of this sewing machine, including the rear window panel being fixedly connected on sewing machine case, shaft is equipped on rear window panel, the inner end of shaft is fixedly connected with interior swing arm, the outer end of shaft is connected with the actuator of drive shaft rotation, preceding lever is hinged on the inner wall of casing, it is hinged with connecting rod on preceding lever, rear lever is also hinged on the inner wall of casing, one end of lever and connecting rod are hinged afterwards, the other end of lever is provided with connecting pin afterwards, and connecting hole is provided in interior swing arm, and connecting pin is inserted into connecting hole.The foot lifting mechanism of this sewing machine has many advantages, such as easy for installation.
Description
Technical field
The utility model belongs to sewing machine technique field, is related to a kind of foot lifting mechanism of sewing machine.
Background technology
Sewing machine is the machine for being sutured sewing by suture, including needle bar mechanism, Yarn taking-up mechanism, feed mechanism, hooking
Mechanism, hold-down mechanism, bobbin winder device and lubricating arrangement etc..Sewing machine can be divided into according to frame mode or sewing technology mode
Flat seam machine, chain seam machine, overedger, lockstitch button holder and closer etc..Hold-down mechanism is also known as feeding pressure mechanism, is to apply pressure to sewing
Mechanism, be divided into hold-down mechanism as compressor arm hold-down mechanism, alternately hold-down mechanism and roller compression mechanism.Wherein, compressor arm
Hold-down mechanism is the hold-down mechanism of single presser feet action.It is opposite with hold-down mechanism that pressure foot lifting machine is additionally provided on sewing machine
Structure releases the mechanism to sewing pressure.Presser bar lifting mechanisms are divided into steps on pressure-raising foot elevator for portable presser bar lifting mechanisms, knee
Structure and by electric and pneumatic or hydraulic operation presser bar lifting mechanisms.
Chinese patent literature data, which discloses, proposes a kind of automatic needle-foot-lifting mechanism [application number of sewing machine：
201310372669.9；Notification number：103437079A]：Include the casing with inner cavity, rear window panel be fixedly connected on casing,
It is fixed with linear actuator outside rear window panel, linear actuator includes a draw bar that can make straight reciprocating motion.Rear window panel
On be equipped with shaft, the inner end of shaft is located in chassis cavity and is fixed with interior swing arm, and the outer end of shaft is pierced by rear window panel and solid
There are outer swing arm, outer swing arm hinged with draw bar surely.Preceding lever is hinged on casing, preceding lever includes three pin holes, the first pin hole
It is rotatably connected in casing by axis pin, the second pin hole is hinged with presser feet lifter plate, connects between interior swing arm and preceding lever
It is connected to pull rod, the rear end of pull rod and the other end of interior swing arm are hinged, and the front end of pull rod and the third pin hole of preceding lever are hinged.
Presser feet lifter plate is connect with compression bar, when the draw bar of linear actuator makees straight reciprocating motion, can drive compression bar rise or
Decline.
When foot lifting mechanism is installed, first linear actuator, shaft, outer swing arm and interior swing arm are installed on rear window panel, then
Presser feet lifter plate and preceding lever are fixed on casing, then will be drawn in chassis cavity by the rear window panel mounting groove on casing
Before bar is connected on lever and interior swing arm, then rear window panel is fixed on casing and closes casing.Since the length of pull rod is solid
It is fixed, and preceding lever is connected on casing, pull rod connect with interior swing arm after movable distance very little, and after while connecting, needs
Luffer boards, which leave the enough distances of casing, enables installer to connect pull rod with interior swing arm using tool, results in connecting rod in this way
Connection between interior swing arm becomes to be inconvenient.
Invention content
The purpose of this utility model is in view of the above-mentioned problems existing in the prior art, it is proposed that a kind of presser foot lifter of sewing machine
The technical issues of mechanism, solution is how to make foot lifting mechanism easy for installation.
The purpose of this utility model can be realized by following technical proposal：
A kind of foot lifting mechanism of sewing machine, including the rear window panel that is fixedly connected on sewing machine case, the rear window panel
On be equipped with shaft, the inner end of the shaft is fixedly connected with interior swing arm, and the outer end of the shaft is connected with drive shaft rotation
Actuator, be hinged with preceding lever on the inner wall of the casing, be hinged with connecting rod on the preceding lever, which is characterized in that described
Rear lever is also hinged on the inner wall of casing, one end of the rear lever and connecting rod are hinged, the other end setting of the rear lever
There is connecting pin, connecting hole is provided in the interior swing arm, the connecting pin is inserted into connecting hole.
Preceding lever is connect with compression bar, and presser feet is connected on compression bar.Actuator drive shaft rotates, and interior swing arm passes through connecting pin
Lever swing after driving drives pull rod movement to lever swing before driving, realizes the lifting of presser feet.When installation, first by shaft
It is fixed on rear window panel, interior swing arm is connected on the inner end of shaft, actuator is connected outside rear window panel, then by preceding lever with after
Lever is hinged on the inner wall of casing, and connecting rod is connected between preceding lever and rear lever, then rear window panel is placed into casing
Installation site on, and the connecting pin on rear lever is made to be inserted into the connecting hole of interior swing arm, finally fixes rear window panel.Setting
Afterwards after lever, connection and the rear window panel of connecting rod and rear lever separate, easy to connect, then lever and interior swing arm by connecting pin and
Connecting hole realization is hinged also very convenient, makes foot lifting mechanism easy for installation in this way.
In the foot lifting mechanism of above-mentioned sewing machine, the one end being connect with rear lever on the connecting pin is fixing end,
One end in connecting hole is inserted on the connecting pin for insertion end, on the connecting pin between fixing end and insertion end
It is provided with the baffle ring of protrusion on lateral surface, is provided with mounting hole after described on lever, the fixing end passes through after mounting hole and spiral shell
Line is connected with fixing nut.
When being fixedly connected with pin, the mounting hole of lever is inserted into after the fixing end of connecting pin is aligned, and then twists fixing nut
It is tight.Connecting pin is fixed on rear lever by baffle ring and fixing nut, connecting pin is fixed conveniently, and foot lifting mechanism is made to pacify
Dress is convenient.It will not be dropped out from mounting hole when the setting of baffle ring makes connecting pin be inserted into the connecting hole of interior swing arm simultaneously, make lift
Presser foot device is easy for installation.
In the foot lifting mechanism of above-mentioned sewing machine, axle sleeve is arranged in the shaft, the axle sleeve wears and fixes
On rear window panel, the shoulder block of protrusion is provided on the lateral surface of the axle sleeve, the inner end of the axle sleeve is arranged and is threaded with
Nut is installed, the shoulder block and installation nut are located at the outside and inside of rear window panel.
First shaft is threaded through in axle sleeve, then axle sleeve inner end is inserted on rear window panel, then installation nut is connected to
On the inner end of axle sleeve and tighten.It is very convenient to install axle sleeve by shoulder block and installation nut, keep foot lifting mechanism easy for installation.
In the foot lifting mechanism of above-mentioned sewing machine, it is provided with annular slot on the lateral surface of the shaft outer end, institute
It states and is connected with snap ring in card slot, washer is provided between the snap ring and axle sleeve, the snap ring can stick on washer, described
Washer can stick on the outer end face of axle sleeve.
Washer and snap ring can limit axial movement of the shaft in axle sleeve, can during shaft is inserted into axle sleeve
To limit the axial position of shaft, keep shaft easy for installation with axle sleeve, keeps foot lifting mechanism easy for installation.
In the foot lifting mechanism of above-mentioned sewing machine, be arranged on the outer end face of the axle sleeve it is fluted, in the groove
Oil sealing is installed, the medial surface of the oil sealing sticks on the lateral surface of shaft.
Oil sealing can prevent the lubricating oil in casing from being leaked along shaft.And oil sealing is arranged in the outer end of axle sleeve, it can
So that lubricating oil is stored between axle sleeve and shaft, keep shaft rotation smooth.
In the foot lifting mechanism of above-mentioned sewing machine, the interior swing arm is arranged and is fixed on shaft by trip bolt
On inner end.The installation of the convenient interior swing arm of setting in this way.
In the foot lifting mechanism of above-mentioned sewing machine, the outer end of the shaft is arranged and is fixedly connected with outer swing arm, institute
It is cylinder or electromagnet to state actuator, and connector is connected on the drive rod of the actuator, and the connector is hinged with outer swing arm.
Cylinder or solenoid actuated outer swing arm are swung, to which drive shaft rotates.
In the foot lifting mechanism of above-mentioned sewing machine, it is provided with axis pin in the outer swing arm, is provided on the connector
Two lugs, the outer swing arm are inserted between two lugs, and the both ends of the axis pin are each passed through two lugs.It is arranged in this way
Make the stable connection of outer swing arm and connector.
Compared with prior art, the utility model has the following advantages：
Hinged rear lever, makes pull rod be connected between preceding lever and rear lever, is arranged on rear lever on the inner wall of casing
Connecting pin, connecting pin are inserted into the connecting hole of interior swing arm, keep foot lifting mechanism easy for installation.Connecting pin by fixing nut and
Baffle ring is fixed on rear lever, easy for installation.Shaft is threaded through in axle sleeve, and axle sleeve is fixed on rear window by shoulder block and installation nut
It is easy for installation on plate.The outer end of shaft is fixed with snap ring and washer, keeps axle sleeve and shaft easy for installation.The outer end of axle sleeve is arranged
There is oil sealing, keeps shaft rotation smooth.
Description of the drawings
Fig. 1 is the stereogram of this foot lifting mechanism；
Fig. 2 is the partial perspective view of this foot lifting mechanism；
Fig. 3 is the sectional view at this foot lifting mechanism connecting pin；
Fig. 4 is the sectional view at this foot lifting mechanism shaft；
Fig. 5 is the enlarged drawing at Fig. 4 bottom bracket axles outer end.
In figure, 1, rear window panel；2, shaft；2a, card slot；3, interior swing arm；3a, connecting hole；4, outer swing arm；5, actuator；6,
Preceding lever；7, connecting rod；8, rear lever；8a, mounting hole；9, connecting pin；9a, fixing end；9b, insertion end；9c, baffle ring；10, fixed
Nut；11, axle sleeve；11a, shoulder block；11b, groove；12, nut is installed；13, snap ring；14, washer；15, oil sealing；16, spiral shell is fastened
Nail；17, connector；17a, lug；18, axis pin；19, compression bar；20, presser feet；21, connecting plate.
Specific implementation mode
It is specific embodiment of the utility model and in conjunction with attached drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these examples.
Embodiment one
As Figure 1-Figure 5, sewing machine includes casing, is equipped with compression bar 19 on casing, the company of being fixedly connected on compression bar 19
The lower end of fishplate bar 21, compression bar 19 is connected with presser feet 20.A kind of foot lifting mechanism of sewing machine, including the rear window that is connected on casing
Plate 1 wears and is fixed with axle sleeve 11 on rear window panel 1, shaft 2 is equipped in axle sleeve 11, the inner end of shaft 2 is arranged and is fixedly connected
There are interior swing arm 3, the outer end of shaft 2 to be arranged and be fixedly connected with outer swing arm 4.Interior swing arm 3 is fixed on shaft 2 by trip bolt 16
Inner end on.Shoulder block 11a is provided on the lateral surface of axle sleeve 11, the inner end of axle sleeve 11 is arranged and is threaded with installation nut
12, shoulder block 11a and installation nut 12 are located at the outside and inside of rear window panel 1, and shoulder block 11a and installation nut 12 support respectively
On the lateral surface and medial surface for leaning against rear window panel 1.Axle sleeve 11 is fixed on rear window panel 1 by shoulder block 11a and installation nut 12.
It is provided with annular slot 2a on the lateral surface of 2 outer end of shaft, snap ring 13 is connected in card slot 2a, is set between snap ring 13 and axle sleeve 11
It is equipped with washer 14, snap ring 13 can stick on washer 14, and washer 14 can stick on the outer end face of axle sleeve 11.Axle sleeve 11
Fluted 11b is set on outer end face, oil sealing 15 is installed in groove 11b, the medial surface of oil sealing 15 sticks on the lateral surface of shaft 2
On.Actuator 5 is fixedly connected on the lateral surface of rear window panel 1, actuator 5 connect with outer swing arm 4 and being capable of 2 turns of drive shaft
Dynamic, actuator 5 is cylinder or electromagnet.Connector 17 is connected on the drive rod of actuator 5, connector 17 is hinged with outer swing arm 4,
Be provided with axis pin 18 in outer swing arm 4, on connector 17 setting there are two lug 17a, two lug 17a that outer swing arm 4 is inserted into it
Between, the both ends of axis pin 18 are each passed through two lug 17a.18 one end of axis pin be pierced by lug 17a and its lateral surface be provided with it is convex
Go out block, block can be resisted against on lug 17a；When installation, the other end of axis pin 18 is inserted into from one of lug 17a, is led to
It is pierced by from another lug 17a after crossing outer swing arm 4.
It is hinged with preceding lever 6 and rear lever 8 on the inner wall of casing, connecting rod 7 is hinged between preceding lever 6 and rear lever 8.Before
One end of lever 6 is hinged with connecting rod 7, and the other end of preceding lever 6 is connect with connecting plate 21.One end of lever 8 is cut with scissors with connecting rod 7 afterwards
It connects, the other end of rear lever 8 is provided with connecting pin 9, and connecting hole 3a is provided in interior swing arm 3, and connecting pin 9 is inserted into connecting hole 3a
It is interior.It is equipped with hinged screw on lever 8 afterwards, hinged screw is fixedly connected with the inner wall of casing, and hinged screw is coaxially set with shaft 2
It sets or is not coaxially disposed.When hinged screw is coaxially disposed with shaft 2, connecting hole 3a is round hole；Hinged screw and shaft 2 are not
When coaxial arrangement, connecting hole 3a is strip-shaped hole.The one end being connect with rear lever 8 on connecting pin 9 is fixing end 9a, on connecting pin 9
It is insertion end 9b to be inserted into one end in connecting hole 3a, the lateral surface on connecting pin 9 between fixing end 9a and insertion end 9b
On be provided with the baffle ring 9c of protrusion, be provided with mounting hole 8a on rear lever 8, fixing end 9a is passed through after mounting hole 8a and is threadedly coupled
There is fixing nut 10.Baffle ring 9c and fixing nut 10 are born against on rear lever 8, will be even by baffle ring 9c and fixing nut 10
Outbound 9 is fixed on rear lever 8.Fixed pin can also connect or be integrally formed with 8 close-fitting of rear lever.
5 drive shaft 2 of actuator rotate, interior swing arm 3 by connecting pin 9 drive after lever 8 swing, drive pull rod movement from
And lever 6 is swung before driving, and realizes the lifting of presser feet 20.When installation, first shaft 2 is worn in axle sleeve 11, then by axle sleeve
11 are fixed on rear window panel 1, and interior swing arm 3 is connected on the inner end of shaft 2, outer swing arm 4 is connected on the outer end of shaft 2, rear
Actuator 5 is connected outside luffer boards 1, then outer swing arm 4 and connector 17 are connected；Then preceding lever 6 and rear lever 8 are hinged on machine
On the inner wall of shell, and connecting rod 7 is connected between preceding lever 6 and rear lever 8；Rear window panel 1 is placed into installation site again, and
So that the connecting pin 9 on rear lever 8 is inserted into the connecting hole 3a of interior swing arm 3, finally fixes rear window panel 1.Lever 8 after setting
Afterwards, connection and the rear window panel 1 of connecting rod 7 and rear lever 8 separate, easy to connect, then lever 8 and interior swing arm 3 by connecting pin 9 and
Connecting hole 3a realizations are hinged also very convenient, make foot lifting mechanism easy for installation in this way.
The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute
Belonging to those skilled in the art can make various modifications or additions to the described embodiments or using similar
Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.
Claims (8)
1. a kind of foot lifting mechanism of sewing machine, including the rear window panel (1) that is fixedly connected on sewing machine case, the rear window panel
(1) shaft (2) is equipped on, the inner end of the shaft (2) is fixedly connected with interior swing arm (3), the outer end connection of the shaft (2)
There is the actuator (5) that drive shaft (2) rotates, be hinged with preceding lever (6) on the inner wall of the casing, on the preceding lever (6)
Be hinged with connecting rod (7), which is characterized in that be also hinged with rear lever (8) on the inner wall of the casing, it is described after lever (8) one
End and connecting rod (7) are hinged, it is described after the other end of lever (8) be provided with connecting pin (9), the company of being provided on the interior swing arm (3)
Hole (3a) is connect, the connecting pin (9) is inserted into connecting hole (3a).
2. the foot lifting mechanism of sewing machine according to claim 1, which is characterized in that on the connecting pin (9) with rear thick stick
One end of bar (8) connection is fixing end (9a), and the one end being inserted on the connecting pin (9) in connecting hole (3a) is insertion end
(9b) is provided with the baffle ring of protrusion on the lateral surface on the connecting pin (9) between fixing end (9a) and insertion end (9b)
(9c), mounting hole (8a) is provided on lever (8) after described, the fixing end (9a) passes through mounting hole (8a) afterwards and is threadedly coupled
There is fixing nut (10).
3. the foot lifting mechanism of sewing machine according to claim 1, which is characterized in that be arranged with axis on the shaft (2)
It covers (11), the axle sleeve (11) wears and is fixed on rear window panel (1), and protrusion is provided on the lateral surface of the axle sleeve (11)
The inner end of shoulder block (11a), the axle sleeve (11) is arranged and is threaded with installation nut (12), the shoulder block (11a) and installation
Nut (12) is located at the outside and inside of rear window panel (1).
4. the foot lifting mechanism of sewing machine according to claim 3, which is characterized in that the outside of shaft (2) outer end
Be provided with annular slot (2a) on face, be connected with snap ring (13) in the card slot (2a), the snap ring (13) and axle sleeve (11) it
Between be provided with washer (14), the snap ring (13) can stick on washer (14), and the washer (14) can stick on axle sleeve
(11) on outer end face.
5. the foot lifting mechanism of sewing machine according to claim 3 or 4, which is characterized in that the outer end of the axle sleeve (11)
It is arranged on face fluted (11b), oil sealing (15) is installed in the groove (11b), the medial surface of the oil sealing (15) sticks on
On the lateral surface of shaft (2).
6. the foot lifting mechanism of sewing machine according to claim 1 or 2, which is characterized in that the interior swing arm (3) is arranged simultaneously
It is fixed on the inner end of shaft (2) by trip bolt (16).
7. the foot lifting mechanism of sewing machine according to claim 1 or 2, which is characterized in that the outer end cap of the shaft (2)
And if be fixedly connected with outer swing arm (4), the actuator (5) is cylinder or electromagnet, on the drive rod of the actuator (5)
It is connected with connector (17), the connector (17) is hinged with outer swing arm (4).
8. the foot lifting mechanism of sewing machine according to claim 7, which is characterized in that be provided on the outer swing arm (4)
Axis pin (18), on the connector (17) setting there are two lug (17a), the outer swing arm (4) be inserted into two lugs (17a) it
Between, the both ends of the axis pin (18) are each passed through two lugs (17a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820372796.7U CN208023208U (en) | 2018-03-19 | 2018-03-19 | A kind of foot lifting mechanism of sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820372796.7U CN208023208U (en) | 2018-03-19 | 2018-03-19 | A kind of foot lifting mechanism of sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208023208U true CN208023208U (en) | 2018-10-30 |
Family
ID=63906467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820372796.7U Active CN208023208U (en) | 2018-03-19 | 2018-03-19 | A kind of foot lifting mechanism of sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208023208U (en) |
-
2018
- 2018-03-19 CN CN201820372796.7U patent/CN208023208U/en active Active
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