CN104762762B - A kind of height adjusting mechanism of presser foot of sewing machine - Google Patents
A kind of height adjusting mechanism of presser foot of sewing machine Download PDFInfo
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- CN104762762B CN104762762B CN201510205889.1A CN201510205889A CN104762762B CN 104762762 B CN104762762 B CN 104762762B CN 201510205889 A CN201510205889 A CN 201510205889A CN 104762762 B CN104762762 B CN 104762762B
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- sewing machine
- lifting
- adjusting mechanism
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Abstract
The invention provides a kind of height adjusting mechanism of presser foot of sewing machine, belong to sewing machine manufacturing technology field.The problem of presser feet that it solves existing sewing machine highly adjusts trouble.The height adjusting mechanism of presser foot of this sewing machine, sewing machine includes head and cylinder, cylinder is fixed in head, it is hinged at the top of the outer end of cylinder piston rod and lift lever, the bottom of lift lever is connected by lifting connecting rod, interval lifting arm, connecting plate and compressor arm with presser feet, governor motion includes needle gage bidding quotation and adjustment axis, needle gage bidding quotation is located on the lateral wall of head, needle gage bidding quotation is connected by adjustment axis with the middle and lower part of lift lever, the lift lever rotates around adjustment axis, presser feet can be driven to move up and down away from bidding quotation by rotary needle.The height adjusting mechanism of presser foot of this sewing machine has the advantages that to make presser feet highly easy to adjust.
Description
Technical field
The invention belongs to sewing machine manufacturing technology field, it is related to a kind of presser feet of sewing machine, particularly a kind of sewing machine
Height adjusting mechanism of presser foot.
Background technology
Industrial sewing machine, because the difference of sewing needs that the height of presser feet is adjusted, is during operating with
The height of presser feet is adapted to the thickness of sewing.
Existing sewing machine and its presser foot lifting device, such as Chinese patent literature data disclose a kind of sewing machine frame and
Its presser foot lifting device for sewing machine [number of patent application：201410080457.8；Application publication number：CN103981651A], it includes
Frame body, frame body is divided into crossbeam and vertical beam, and crossbeam is with being hollow structure inside vertical beam, close to presser foot component end, in horizontal stroke
One end of beam sets fluted.
The sewing machine of this kind of structure is when adjusting the height of presser foot lifter, it is necessary to pull down trim and the progress of presser feet fixing screws
Regulation, troublesome poeration.
The content of the invention
The purpose of the present invention is to be directed to the above-mentioned problems in the prior art, it is proposed that a kind of presser feet height of sewing machine
Governor motion, solves how to make the height adjustment operation of presser feet convenient.
The purpose of the present invention can be realized by following technical proposal：A kind of height adjusting mechanism of presser foot of sewing machine, seam
Machine of threading includes head and cylinder, and the cylinder is fixed in head, the outer end of the cylinder piston rod and the top of lift lever
Portion is hinged, and the bottom of the lift lever is connected by lifting connecting rod, interval lifting arm, connecting plate and compressor arm with presser feet,
Characterized in that, the governor motion includes needle gage bidding quotation and adjustment axis, the needle gage bidding quotation is located on the lateral wall of head, institute
State needle gage bidding quotation by adjustment axis with the middle and lower part of lift lever to be connected, the lift lever rotates around adjustment axis, pass through rotation
Needle gage bidding quotation can drive presser feet to move up and down.
Sewing machine is operationally, it is necessary to which according to the height of the different adjustment presser feet of sewing, this governor motion only needs to pass through
Rotary needle drives lift lever to be rotated around adjustment axis away from bidding quotation away from bidding quotation, rotary needle by adjustment axis, change lifting connecting rod,
The position of interval lifting arm, connecting plate and compressor arm, so as to change the position of presser feet, makes the height of presser feet be adapted to different seams
Material, it is easy to adjust, it is easy to operate, needle gage bidding quotation can be locked after the completion of regulation；The difference in height of sewing is often smaller, and presser feet is highly needed
The scope to be adjusted is smaller, i.e., lift lever bottom needs the angle rotated smaller, under in adjustment axis and lift lever
Portion is connected, and the angle change of lift lever bottom is less when rotary needle is away from bidding quotation, and degree of regulation is high, can Primary regulation in place, adjust
Section is convenient.
In a kind of height adjusting mechanism of presser foot of above-mentioned sewing machine, lifting arm axle is fixed with the head, it is described
The bottom of interval lifting arm is enclosed on outside lifting arm axle, and the rear end of the interval lifting arm is connected with lifting connecting rod, and the interval is carried
The front end of rising stem is resisted against the bottom of connecting plate, and the rear end of interval lifting arm is less than to the distance between interval lifting arm bottom
The front end of interval lifting arm is the distance between to interval lifting arm bottom.Transmission is set to be changed into from moving left and right by interval lifting arm
Move up and down, and interval lifting arm uses lever principle, makes the transmission degree of regulation of presser feet higher.
In a kind of height adjusting mechanism of presser foot of above-mentioned sewing machine, the front end of the interval lifting arm has roller,
The roller is resisted against the bottom of connecting plate.Roller makes the connection between interval lifting arm and connecting plate be changed into rolling connection,
When lifting arm of having a rest makes the connecting plate rotate upward or down, roller improves precision when interval lifting arm drives connecting plate rotation,
So as to improve the degree of regulation of this governor motion.
In a kind of height adjusting mechanism of presser foot of above-mentioned sewing machine, the bottom of the connecting plate have arc against
Face, the roller is resisted against on arc abutment face.When connecting plate rotates, axle of the position along roller between roller and connecting plate
To shifting, arc abutment face matches with roller, roller is moved when offseting smooth, improves the regulation essence of this governor motion
Degree.
In a kind of height adjusting mechanism of presser foot of above-mentioned sewing machine, provided with interval between the connecting plate and compressor arm
Connecting rod one, interval connecting rod two and transiting rod, the connecting plate are axially fixed in head, the middle part of the interval connecting rod one and company
Fishplate bar is hinged, and one end and the top of interval connecting rod two of the interval connecting rod one are hinged, the bottom of the interval connecting rod two
It is fixedly connected with compressor arm, the other end of the interval connecting rod one and one end of transiting rod are hinged, the other end of the transiting rod
It is hinged with head.Interval lifting arm can drive connecting plate to rotate in a circumferential direction, and pass through interval connecting rod one, interval connecting rod two and transiting rod
Enable connecting plate change in location more preferably, compressor arm is more accurately passed to, so that improving this governor motion passes through needle gage bidding quotation
Adjust the precision of presser feet height.
In a kind of height adjusting mechanism of presser foot of above-mentioned sewing machine, there is cavity, the interval at the connecting plate
A connecting rod part is located in cavity, and the hinged place of the interval connecting rod one and interval connecting rod two is located in cavity.This kind of structure, makes
Connecting plate and interval connecting rod one occupy less space, make transiting rod and interval connecting rod two and connecting plate, the position of interval connecting rod one
Put compact, the space occupied is small, reasonable utilization space.
In a kind of height adjusting mechanism of presser foot of above-mentioned sewing machine, the interval connecting rod two-way crosses pressed joint and pressure
Tight bar is fixedly connected with, and the pressed joint includes having the guiding vertically set on guide part, the madial wall of the head
Groove, the guide part is embedded in guide groove.The presence of guide part ensures that direction of the compressor arm along setting is moved, and improves compressor arm
Mobile accuracy, so as to improve the degree of regulation of presser feet.
In a kind of height adjusting mechanism of presser foot of above-mentioned sewing machine, it is provided between the lifting connecting rod and lift lever
Anchor tip one and slip joint, the rear end of the anchor tip one and the bottom of lift lever are hinged, the anchor tip
One front end has connection blind hole one, and the slip joint includes the insertion section of rear end and the connecting portion of front end, the connecting portion
In have connection blind hole two, the insertion site in connection blind hole one in, it is described lifting connecting rod rear end be located at connection blind hole two
In, the both sides of the connecting portion are threaded with adjusting nut.By adjusting the position of adjusting nut, change insertion section insertion
Connect the depth of blind hole one, change the depth of lifting rod rear end insertion connection blind hole two, so as to be carried out to the position for lifting connecting rod
Fine setting, adjusting nut adjusts the initial position of presser feet, improves the precision of this governor motion.
In a kind of height adjusting mechanism of presser foot of above-mentioned sewing machine, set between the lifting connecting rod and interval lifting arm
There is anchor tip two, the front end and the rear end of interval lifting arm of the anchor tip two are hinged, after the anchor tip two
End has connection blind hole three, and the front end of the lifting connecting rod is located in connection blind hole three, is cased with adjusting spiral shell on the lifting connecting rod
Mother, and adjusting nut is resisted against the rear end of anchor tip two.By adjusting adjusting nut, the front end for changing lifting connecting rod is inserted into
The depth in blind hole three is connected, so as to be finely adjusted to the position of interval lifting arm, connecting plate, adjusting nut adjusts the first of presser feet
Beginning position, improve the precision of this governor motion.
Compared with prior art, a kind of height adjusting mechanism of presser foot for sewing machine that the present invention is provided has advantages below：
1st, the presser feet of this sewing machine, which is highly adjusted, only needs to that just the height of presser feet can be adjusted away from bidding quotation by rotary needle, operation
It is convenient, the presser feet of this sewing machine is accurately pushed down the sewing of various different-thickness.
2nd, the presser feet of this sewing machine is highly adjusted and has used a variety of transmission mechanisms, and the regulation of presser feet is improved using lever principle
Precision, and rationally utilization space.
3rd, highly adjust can be by adjusting nut regulation lifting connecting rod, interval lifting arm when initial for the presser feet of this sewing machine
With the initial position of connecting plate etc., position when making presser feet initial is in suitable height, so as to reduce later stage needle gage bidding quotation root
Adjustable range when being adjusted according to different sewings.
Brief description of the drawings
Fig. 1 is the overall structure diagram of this sewing-machine foot height adjustment mechanism.
Fig. 2 is the partial structural diagram one of this sewing machine.
Fig. 3 is the partial structural diagram two of this sewing machine.
Fig. 4 is the partial structural diagram one of this sewing-machine foot height adjustment mechanism.
Fig. 5 is the partial structural diagram two of this sewing-machine foot height adjustment mechanism.
Fig. 6 is the attachment structure schematic diagram that this sewing-machine foot height adjustment mechanism lifts connecting rod.
In figure, 1, head；101st, guide groove；2nd, cylinder；201st, piston rod；3rd, needle gage bidding quotation；4th, adjustment axis；5th, thick stick is lifted
Bar；6th, connecting rod is lifted；7th, interval lifting arm；8th, lifting arm axle；9th, connecting plate；10th, compressor arm；11st, interval connecting rod one；12nd,
Have a rest connecting rod two；13rd, transiting rod；14th, roller；15th, arc abutment face；16th, cavity；17th, pressed joint；171st, guide part；18th, it is solid
Determine joint one；19th, slip joint；191st, insertion section；192nd, connecting portion；20th, blind hole one is connected；21st, blind hole two is connected；22nd, adjust
Save nut；23rd, anchor tip two；24th, blind hole three is connected；25th, presser feet.
Embodiment
The following is specific embodiment of the invention and with reference to accompanying drawing, technical scheme is further described,
But the present invention is not limited to these embodiments.
As shown in Figure 2,3, sewing machine includes head 1, cylinder 2 and height adjusting mechanism of presser foot, and cylinder 2 is fixed on head 1
In, height adjusting mechanism of presser foot is located on head 1.
As shown in figure 1, governor motion includes needle gage bidding quotation 3 and adjustment axis 4.As shown in Figure 1 and Figure 2, needle gage bidding quotation 3 is located at
On the lateral wall of head 1, the top and the outer end of the piston rod 201 of cylinder 2 of lift lever 5 are hinged, and needle gage bidding quotation 3 is by adjusting
Nodal axisn 4 is connected with lift lever 5, in the present embodiment, under the tie point of adjustment axis 4 and lift lever 5 is located in lift lever 5
Portion.
The bottom of lift lever 5 is connected by lifting connecting rod 6 with the rear end of interval lifting arm 7, as shown in fig. 6, lifting connects
Anchor tip 1 and slip joint 19, rear end and the lift lever 5 of anchor tip 1 are provided between bar 6 and lift lever 5
Bottom be hinged, the front end of anchor tip 1 has connection blind hole 1, and slip joint 19 includes the insertion section 191 of rear end
With the connecting portion 192 of front end, there is connection blind hole 2 21 in connecting portion 192, insertion section 191 is located in connection blind hole 1, carried
The rear end for rising connecting rod 6 is located in connection blind hole 2 21, and the both sides of connecting portion 192 are threaded with adjusting nut 22, two tune
Rear end screw thread of the section nut 22 respectively with insertion section 191, lifting connecting rod 6 is connected, and an adjusting nut 22 is resisted against fixation and connect
First 18 front end, another adjusting nut 22 is resisted against on connecting portion 192, can be changed by the position for adjusting adjusting nut 22
Become the position of slip joint 19, so as to change the position of lifting connecting rod 6；Lifted between connecting rod 6 and interval lifting arm 7 provided with fixation
Joint 2 23, the front end and the rear end of interval lifting arm 7 of anchor tip 2 23 are hinged, and the rear end of anchor tip 2 23, which has, to be connected
Blind hole 3 24 is connect, the front end of lifting connecting rod 6 is located in connection blind hole 3 24, and adjusting nut 22 is threaded with lifting connecting rod 6,
Adjusting nut 22 is resisted against the rear end of anchor tip 2 23, changes the initial bit of interval lifting arm 7 by adjusting adjusting nut 22
Put.The structure of anchor tip 1 and anchor tip 2 23 is to be symmetrical set.
As shown in Figure 4, Figure 5, the rear end of interval lifting arm 7 is less than interval to the distance between the bottom of interval lifting arm 7 and carried
The front end of rising stem 7 is the distance between to the bottom of interval lifting arm 7, and the bottom of interval lifting arm 7 is enclosed on outside lifting arm axle 8, lifting
Bar axle 8 is connected in head 1, i.e., interval lifting arm 7 can be rotated around lifting arm axle 8, and the front end of interval lifting arm 7 has roller
14, the bottom of connecting plate 9 has arc abutment face 15, and roller 14 is resisted against on arc abutment face 15.Connecting plate 9 is axially fixed in
In head 1, middle part and the connecting plate 9 of interval connecting rod 1 are hinged, one end and the interval connecting rod 2 12 of interval connecting rod 1
Top is hinged, and one end of the other end and transiting rod 13 of interval connecting rod 1 is hinged, the other end and quarter butt of transiting rod 13
It is hinged, quarter butt is fixedly connected with head 1.The bottom of interval connecting rod 2 12 is fixedly connected with by pressed joint 17 with compressor arm 10, pressure
The bottom of tight bar 10 is fixed with presser feet 25, and pressed joint 17 includes having along vertical side on guide part 171, the madial wall of head 1
To the guide groove 101 of setting, guide part 171 is embedded in guide groove 101.There is cavity 16, one 11, interval connecting rod at connecting plate 9
Divide and be located in cavity 16, the hinged place of interval connecting rod 1 and interval connecting rod 2 12 also is located in cavity 16, reasonable utilization space.
During initial installation, by adjusting adjusting nut 22, to change lifting connecting rod 6, interval lifting arm 7 and connecting plate 9 etc.
Initial position, enable the sewing of the suitable general thickness of presser feet 25 positioned at the bottom of compressor arm 10.When sewing difference needs regulation
During the height of presser feet 25, only need rotary needle away from bidding quotation 3, lift lever 5 is driven around adjustment axis 4 away from bidding quotation 3 by rotary needle
Rotation, changes lifting connecting rod 6, interval lifting arm 7, the position of connecting plate 9, so as to pass through interval connecting rod 1, interval connecting rod two
12nd, transiting rod 13 and compressor arm 10 change the position of presser feet 25, the height of presser feet 25 is adapted to sewing, easy to adjust.
Specific embodiment described herein is only to spirit explanation for example of the invention.Technology neck belonging to of the invention
The technical staff in domain can be made various modifications or supplement to described specific embodiment or be replaced using similar mode
Generation, but without departing from the spiritual of the present invention or surmount scope defined in appended claims.
Although more having used head 1, guide groove 101, cylinder 2, piston rod 201, needle gage bidding quotation 3, adjustment axis herein
4th, lift lever 5, lifting connecting rod 6, interval lifting arm 7, lifting arm axle 8, connecting plate 9, compressor arm 10, interval connecting rod 1,
Have a rest connecting rod 2 12, transiting rod 13, roller 14, arc abutment face 15, cavity 16, pressed joint 17, guide part 171, anchor tip
One 18, slip joint 19, insertion section 191, connecting portion 192, connection blind hole 1, connection blind hole 2 21, adjusting nut 22, fixation
The terms such as joint 2 23, connection blind hole 3 24, presser feet 25, but it is not precluded from the possibility using other terms.Use these arts
Language is used for the purpose of more easily describing and explaining the essence of the present invention；Being construed as any additional limitation is all
Disagreed with spirit of the present invention.
Claims (9)
1. a kind of height adjusting mechanism of presser foot of sewing machine, sewing machine includes head (1) and cylinder (2), the cylinder (2) is fixed
In head (1), the outer end of cylinder (2) piston rod (201) at the top of lift lever (5) with being hinged, the lifting
The bottom of lever (5) is by lifting connecting rod (6), interval lifting arm (7), connecting plate (9) and compressor arm (10) and presser feet (25) phase
Even, it is characterised in that the governor motion includes needle gage bidding quotation (3) and adjustment axis (4), the needle gage bidding quotation (3) is located at head
(1) on lateral wall, the needle gage bidding quotation (3) is connected by adjustment axis (4) with the middle and lower part of lift lever (5), the lifting
Lever (5) rotates around adjustment axis (4), away from bidding quotation (3) presser feet (25) can be driven to move up and down by rotary needle.
2. a kind of height adjusting mechanism of presser foot of sewing machine according to claim 1, it is characterised in that the head (1)
In be fixed with lifting arm axle (8), the bottom of the interval lifting arm (7) is enclosed on lifting arm axle (8) outside, the interval lifting arm
(7) rear end is connected with lifting connecting rod (6), and the front end of the interval lifting arm (7) is resisted against the bottom of connecting plate (9), and
The have a rest rear end of lifting arm (7) is less than the front end of interval lifting arm (7) to intermittently carrying to the distance between interval lifting arm (7) bottom
The distance between rising stem (7) bottom.
3. a kind of height adjusting mechanism of presser foot of sewing machine according to claim 2, it is characterised in that the interval lifting
The front end of bar (7) has roller (14), and the roller (14) is resisted against the bottom of connecting plate (9).
4. a kind of height adjusting mechanism of presser foot of sewing machine according to claim 3, it is characterised in that the connecting plate
(9) bottom has arc abutment face (15), and the roller (14) is resisted against on arc abutment face (15).
5. a kind of height adjusting mechanism of presser foot of sewing machine according to claim 1 or 2 or 3 or 4, it is characterised in that institute
State and interval connecting rod one (11), interval connecting rod two (12) and transiting rod (13) are provided between connecting plate (9) and compressor arm (10), it is described
Connecting plate (9) is axially fixed in head (1), and middle part and the connecting plate (9) of the interval connecting rod one (11) are hinged, it is described between
Have a rest one end and the top of interval connecting rod two (12) of connecting rod one (11) is hinged, the bottom of the interval connecting rod two (12) and compression
Bar (10) is fixedly connected with, and one end of the other end and transiting rod (13) of the interval connecting rod one (11) is hinged, the transiting rod
(13) the other end is hinged with head (1).
6. a kind of height adjusting mechanism of presser foot of sewing machine according to claim 5, it is characterised in that the connecting plate
(9) place has a cavity (16), and the interval connecting rod one (11) is partly located in cavity (16), the interval connecting rod one (11) and
Have a rest connecting rod two (12) hinged place be located at cavity (16) in.
7. a kind of height adjusting mechanism of presser foot of sewing machine according to claim 6, it is characterised in that the interval connecting rod
Two (12) are fixedly connected with by pressed joint (17) with compressor arm (10), and the pressed joint (17) includes guide part (171), described
There is the guide groove (101) vertically set, the guide part (171) is embedded in guide groove on the madial wall of head (1)
(101) in.
8. a kind of height adjusting mechanism of presser foot of sewing machine according to claim 1 or 2 or 3 or 4, it is characterised in that institute
State and anchor tip one (18) and slip joint (19), the anchor tip one are provided between lifting connecting rod (6) and lift lever (5)
(18) bottom of rear end and lift lever (5) is hinged, and the front end of the anchor tip one (18) has connection blind hole one
(20), the slip joint (19) includes the insertion section (191) of rear end and the connecting portion (192) of front end, the connecting portion (192)
In there is connection blind hole two (21), the insertion section (191) is located in connection blind hole one (20), after the lifting connecting rod (6)
End is located in connection blind hole two (21), and the both sides of the connecting portion (192) are threaded with adjusting nut (22).
9. a kind of height adjusting mechanism of presser foot of sewing machine according to claim 8, it is characterised in that the lifting connecting rod
(6) anchor tip two (23), front end and the interval lifting arm of the anchor tip two (23) are provided between interval lifting arm (7)
(7) rear end is hinged, and the rear end of the anchor tip two (23) has connection blind hole three (24), the lifting connecting rod (6)
Front end is located in connection blind hole three (24), is cased with adjusting nut (22) on the lifting connecting rod (6), and adjusting nut (22) against
In the rear end of anchor tip two (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510205889.1A CN104762762B (en) | 2015-04-27 | 2015-04-27 | A kind of height adjusting mechanism of presser foot of sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510205889.1A CN104762762B (en) | 2015-04-27 | 2015-04-27 | A kind of height adjusting mechanism of presser foot of sewing machine |
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| CN104762762A CN104762762A (en) | 2015-07-08 |
| CN104762762B true CN104762762B (en) | 2017-10-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510205889.1A Active CN104762762B (en) | 2015-04-27 | 2015-04-27 | A kind of height adjusting mechanism of presser foot of sewing machine |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105734843A (en) * | 2016-05-09 | 2016-07-06 | 拓卡奔马机电科技有限公司 | Presser foot adjusting mechanism |
| CN106592117B (en) * | 2017-01-13 | 2023-06-30 | 湖南兴德缝制股份有限公司 | Automatic jump type lifting mechanism of presser foot of sewing machine and sewing machine with automatic jump type lifting mechanism |
| CN109989186B (en) * | 2019-04-23 | 2021-06-22 | 杰克缝纫机股份有限公司 | Composite regulating method |
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| JPH08332290A (en) * | 1995-06-07 | 1996-12-17 | Juki Corp | Intermediate presser mechanism for sewing machine |
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| Publication number | Publication date |
|---|---|
| CN104762762A (en) | 2015-07-08 |
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