CN108611770A - A kind of lifting pressre of sewing machine structure and sewing machine - Google Patents
A kind of lifting pressre of sewing machine structure and sewing machine Download PDFInfo
- Publication number
- CN108611770A CN108611770A CN201810558315.6A CN201810558315A CN108611770A CN 108611770 A CN108611770 A CN 108611770A CN 201810558315 A CN201810558315 A CN 201810558315A CN 108611770 A CN108611770 A CN 108611770A
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- China
- Prior art keywords
- lifting
- knee
- lever
- foot
- presser foot
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Classifications
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B29/00—Pressers; Presser feet
- D05B29/02—Presser-control devices
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B69/00—Driving-gear; Control devices
- D05B69/02—Mechanical drives
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B69/00—Driving-gear; Control devices
- D05B69/10—Electrical or electromagnetic drives
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The present invention provides a kind of lifting pressre of sewing machine structure, source component is driven including automatic needle-foot-lifting, fore-set, knee leans on mandril, lever assembly afterwards, pull rod, presser bar lifting mechanisms, and presser foot component, lever assembly includes that the automatic needle-foot-lifting lever that can be swung around same fixed axis and knee lean on presser foot lifter lever afterwards, automatic needle-foot-lifting lever and knee have avoiding mechanism between presser foot lifter lever, when carrying out knee by presser foot lifter by presser foot lifter lever swing by top rod driving knee by knee, avoiding mechanism makes automatic needle-foot-lifting lever not swing, when carrying out automatic needle-foot-lifting by automatic needle-foot-lifting driving source Component driver automatic needle-foot-lifting lever, avoiding mechanism makes knee by presser foot lifter lever with automatic needle-foot-lifting lever synchronous hunting.Automatic needle-foot-lifting lever is not swung when the application can make knee lean on presser foot lifter by avoiding mechanism so that fore-set is not also swung, therefore fore-set will not interfere with sewing machine case, collide when knee leans on presser foot lifter, and then makes the application that there is enough knees to lean on presser foot lifter height.
Description
Technical field
The present invention relates to a kind of lifting pressre of sewing machine structures.
The invention further relates to it is a kind of include above-mentioned lifting pressre of sewing machine structure sewing machine.
Background technology
Lifting pressre of sewing machine structure in the prior art is as shown in Figure 1, including presser foot lifter electromagnet assembly 100, fore-set
200, knee by mandril 300, the rear lever 500 for being articulated with by screw 400 casing, pull rod 600, presser bar lifting mechanisms 700 and
Presser foot component 800 mounted on 700 lower end of presser bar lifting mechanisms, presser foot lifter electromagnet assembly 100 are installed on casing, fore-set 200
One end be in contact with the mobile terminal of presser foot lifter electromagnet assembly 100, the other end be mounted on rear lever 500 one end, knee by push up
The upper end of bar 300 is articulated with rear lever 500, and the other end of the other end and pull rod 600 of rear lever 500 is hinged, pull rod 600
The other end is connected with the upper end of presser bar lifting mechanisms 700.The operation principle of above-mentioned lifting pressre of sewing machine structure is as follows：Auto lifting
When presser feet, 100 mobile terminal of presser foot lifter electromagnet assembly is stretched out upwards, and lever 500 is put around screw 400 after being driven by fore-set 200
It is dynamic, and then drive presser foot component 800 to move up by pull rod 600 and presser bar lifting mechanisms 700, realize automatic needle-foot-lifting；Artificial knee
When by presser foot lifter, user is pushed up upwards by knee stretches knee by mandril 300, and lever 500 is swung around screw 400 after driving, Jin Ertong
It crosses pull rod 600 and presser bar lifting mechanisms 700 drives presser foot component 800 to move up, realize that knee leans on presser foot lifter.
Above-mentioned lifting pressre of sewing machine structure at work, when automatic needle-foot-lifting after the swing of lever 500 knee can be driven by top
Bar 300 moves up simultaneously, when artificial presser foot lifter after the swing of lever 500 can drive fore-set 200 while move up.But
Due to the limitation of needle feeding type internal structure in sewing machine so that sewing machine uses half outlet structure of electromagnet, therefore, if
Artificial presser foot lifter excessive height, can drive the stroke that fore-set 200 moves up to become larger, so that fore-set 200 is generated with casing
Interference, collision；To avoid the interference between fore-set 200 and casing and collision, presser foot lifter when artificial presser foot lifter can only be just reduced
Highly, and then cause knee insufficient by presser foot lifter height.Sewing professional standard knee requires to reach 13mm by presser foot lifter maximum height, and
The knee of the lifting pressre of sewing machine structure of above structure is just unable to reach 13mm at all by presser foot lifter maximum height.
Invention content
In view of the foregoing deficiencies of prior art, the purpose of the present invention is to provide a kind of lifting pressre of sewing machine structure,
It can ensure that knee is met the requirements by the maximum height of presser foot lifter, and be avoided that fore-set and casing interference, collision when knee leans on presser foot lifter.
To achieve the above object, the present invention provides a kind of lifting pressre of sewing machine structure, including automatic needle-foot-lifting driving source group
Part, fore-set, knee lean on mandril, rear lever assembly, pull rod, presser bar lifting mechanisms and the pressure mounted on presser bar lifting mechanisms lower end
Foot component, the rear lever assembly include that the automatic needle-foot-lifting lever that can be swung around same fixed axis and knee lean on presser foot lifter thick stick
Bar, one end of the fore-set is connected with one end of automatic needle-foot-lifting lever, the other end and automatic needle-foot-lifting drive source component
Moving portion abuts against, and by mandril, the hinged, other end and pull rod one end are hinged with knee by one end of presser foot lifter lever for the knee, described
The pull rod other end is connected with the upper end of presser bar lifting mechanisms；The automatic needle-foot-lifting lever and knee between presser foot lifter lever by having
Have avoiding mechanism, when by knee by top rod driving knee by presser foot lifter lever swing carry out knee lean on presser foot lifter when, the avoiding mechanism makes
Automatic needle-foot-lifting lever is not swung, when by automatic needle-foot-lifting driving source Component driver automatic needle-foot-lifting lever progress automatic needle-foot-lifting
When, the avoiding mechanism make knee by presser foot lifter lever with automatic needle-foot-lifting lever synchronous hunting.
Further, automatic needle-foot-lifting when knee leans on the swaying direction and automatic needle-foot-lifting of presser foot lifter lever when knee leans on presser foot lifter
The swaying direction of lever is identical；The avoiding mechanism includes the bending part extended from automatic needle-foot-lifting lever, is formed in folding
The cavity zone of turn of bilge inner circumferential side and it is located at swing rod portion of the knee on the presser foot lifter lever；Knee leans on presser foot lifter when leaning on presser foot lifter along knee
The swaying direction that lever is swung to the left, the bending part are located at the right side in swing rod portion, and the bending part is set on the left of cavity zone
Have evacuation opening portion, the right side of cavity zone be equipped with driving swing part, the swing rod portion be located at cavity zone and avoid opening portion in,
And positioned at the left side of driving swing part.
Further, automatic needle-foot-lifting when knee leans on the swaying direction and automatic needle-foot-lifting of presser foot lifter lever when knee leans on presser foot lifter
The swaying direction of lever is identical；The avoiding mechanism includes the bending part extended on presser foot lifter lever from knee, is formed in folding
The cavity zone of turn of bilge inner circumferential side and the swing rod portion being located on automatic needle-foot-lifting lever；Knee leans on presser foot lifter when leaning on presser foot lifter along knee
The swaying direction that lever is swung to the left, the bending part are located at the left side in swing rod portion, and the bending part is set on the right side of cavity zone
Have evacuation opening portion, the left side of cavity zone be equipped with driving swing part, the swing rod portion be located at cavity zone and avoid opening portion in,
And positioned at the right side of driving swing part.
Further, the knee is hinged by mandril by linkwork by presser foot lifter lever with knee, when by auto lifting pressure
When foot driving source Component driver automatic needle-foot-lifting lever carries out automatic needle-foot-lifting, the linkwork makes knee not leaned on knee by mandril
The swing of presser foot lifter lever and move.
Further, the linkwork include by knee by mandril and knee by the hinged mandril screw of presser foot lifter lever, with
And the sliding slot for being opened in knee on the presser foot lifter lever and extending up and down, the mandril screw are threaded through in sliding slot and can be relative to
Sliding slot moves up and down；When non-knee leans on presser foot lifter and automatic needle-foot-lifting, the mandril screw is located at the upper end of sliding slot.
Further, the knee integrally provided with cylinder interconnecting piece and is located at outside cylinder interconnecting piece by the upper end of mandril
The limiting section at end, the knee offer and the matched circular hole portion of cylinder interconnecting piece, the cylinder connection on presser foot lifter lever
Portion is rotationally threaded through in circular hole portion, and the limiting section is located at the outside in circular hole portion and is abutted by presser foot lifter lever with knee.
Further, it is installed with elastic buffering pad on the driving end face of the swing part towards swing rod portion.
Further, it is arranged with rubber ring on the driving swing part, one be located between driving swing part and swing rod portion
Partial rubber circle constitutes the elastic buffering pad.
Further, the automatic needle-foot-lifting lever and knee lean on presser foot lifter lever being hinged by an axial screw coaxial line
In the casing of sewing machine.
Further, rotatable idler wheel is arranged on the fore-set, the idler wheel drives source component with automatic needle-foot-lifting
The moving portion of upper end abuts against.
Further, the presser bar lifting mechanisms include the preceding lever with fixed swing pivot, can move up and down
Compression bar, the presser bar spring bracket for being fixed on compression bar upper end and the lift connection plate being connected with presser bar spring bracket by pin, before described
One end of lever and pull rod be hinged, the upper end of the other end and lift connection plate is hinged, and the lower end of the lift connection plate offers
The link slot extended up and down, the pin are threaded through the lower end in link slot and positioned at link slot, and the presser foot component is mounted on
The lower end of compression bar.
The present invention also provides a kind of sewing machine, lifting pressre of sewing machine structure as described above is installed in the sewing machine.
As described above, lifting pressre of sewing machine structure of the present invention and sewing machine, have the advantages that：
In the application, automatic needle-foot-lifting lever is not swung when knee can be made to lean on presser foot lifter by avoiding mechanism so that fore-set
Also it does not swing, therefore is not in the phenomenon that fore-set is with sewing machine case interference, collision when knee leans on presser foot lifter, so that this Shen
There please be enough knees to lean on presser foot lifter height, can ensure that knee reaches 13mm, meets the requirements by the maximum height of presser foot lifter.
Description of the drawings
Fig. 1 is the structural schematic diagram of lifting pressre of sewing machine structure in the prior art.
Fig. 2 is the structural schematic diagram of sewing machine in the application.
Fig. 3 is the structural schematic diagram of lifting pressre of sewing machine structure in the application.
Fig. 4 is the structural schematic diagram of one embodiment of rear lever assembly in the application.
Fig. 5 is the explosive view of Fig. 4.
Fig. 6 is the structural schematic diagram of the another embodiment of rear lever assembly in the application.
Fig. 7 is the explosive view of Fig. 6.
Fig. 8 is that knee leans on the connection diagram of presser foot lifter lever by mandril and knee in an embodiment in the application.
Fig. 9 is the explosive view of Fig. 8.
Figure 10 is that knee leans on the connection diagram of presser foot lifter lever by mandril and knee in another embodiment in the application.
Figure 11 is the structural schematic diagram of presser bar lifting mechanisms in the application.
The A that Figure 12 is Figure 11 encloses enlarged drawing.
Component label instructions
1 automatic needle-foot-lifting drives source component
2 fore-sets
3 knees lean on mandril
31 cylinder interconnecting pieces
32 limiting sections
Lever assembly after 4
41 automatic needle-foot-lifting levers
42 knees lean on presser foot lifter lever
421 sliding slots
422 circular hole portions
43 bending parts
44 cavity zones
45 swing rod portions
46 evacuation opening portions
47 driving swing parts
5 pull rods
6 presser bar lifting mechanisms
Lever before 61
62 compression bars
63 presser bar spring brackets
64 pins
65 lift connection plates
651 link slots
66 compression bar sets
7 presser foot components
8 mandril screws
9 rubber rings
10 axial screws
11 idler wheels
12 casings
Specific implementation mode
Illustrate that embodiments of the present invention, those skilled in the art can be by this explanations by particular specific embodiment below
Content disclosed by book understands other advantages and effect of the present invention easily.
It should be clear that structure, ratio, size etc. that this specification attached drawing is painted, only to coordinate specification it is revealed in
Hold, so that those skilled in the art understands and reads, is not limited to the enforceable qualifications of the present invention, therefore does not have skill
Essential meaning in art, the modification of any structure, the change of proportionate relationship or the adjustment of size can be produced not influencing the present invention
Under raw effect and the purpose that can reach, should all still it fall in the range of disclosed technology contents can be covered.Together
When, cited such as "upper" in this specification, "lower", "left", "right", " centre " and " one " term, be merely convenient to chat
It states clearly, rather than to limit the scope of the invention, relativeness is altered or modified, and technology is being changed without essence
It inside holds, when being also considered as the enforceable scope of the present invention.
In following embodiment, the cloth-feeding direction of work-feeding mean of sewing machine is defined as front direction, by sewing machine towards head
Direction be defined as right direction, the direction of sewing machine towards tail is defined as left direction.
The present invention provides the lifting pressre of sewing machine structure installed in a kind of sewing machine, particularly the sewing machine.Such as Fig. 2 and
Shown in Fig. 3, lifting pressre of sewing machine structure is mounted in the casing 12 of sewing machine comprising automatic needle-foot-lifting drives source component 1, preceding
Pull rod 5 that the fore-set 2 that extends afterwards, the knee extended up and down extend by mandril 3, rear lever assembly 4, left and right, presser bar lifting mechanisms 6,
And the presser foot component 7 mounted on 6 lower end of presser bar lifting mechanisms, the automatic needle-foot-lifting driving source component 1, fore-set 2 and rear thick stick
Bar assembly 4 is located at the tail of casing 12, and the presser bar lifting mechanisms 6 are located at the head of casing 12, and the knee is by mandril 3
Upper end is stretched into casing 12 and is connected with rear lever assembly 4.The automatic needle-foot-lifting driving source component 1 can select electromagnetism
Iron component, cylinder etc., and casing 12 is fixed on by screw, the upper end has the moving portion that can be moved up and down.Thick stick after described
Bar assembly 4 includes automatic needle-foot-lifting lever 41 and knee leans on presser foot lifter lever 42, automatic needle-foot-lifting lever 41 and knee to lean on presser foot lifter thick stick
Bar 42 is by the casing 12 for being articulated with sewing machine of front and back 10 coaxial line of axial screw extended, therefore automatic needle-foot-lifting lever 41
It can be swung around the fixed axis of same front and back extension by presser foot lifter lever 42 with knee；The rear end of the fore-set 2 passes through auto lifting
The left end of presser feet lever 41 is simultaneously fixedly connected by nut with automatic needle-foot-lifting lever 41, the front end of fore-set 2 and automatic needle-foot-lifting
The moving portion of driving source component 1 upper end abuts against and fore-set 2 is located at the top of moving portion；The knee is by presser foot lifter lever 42
By mandril 3, the hinged, other end and 5 left end of pull rod are hinged with knee for one end, the upper end of the pull rod 5 right end and presser bar lifting mechanisms 6
It is connected.Particularly, the automatic needle-foot-lifting lever 41 and knee have avoiding mechanism, the evacuation machine between presser foot lifter lever 42
Structure can make automatic needle-foot-lifting lever 41 and knee have following movement relation between presser foot lifter lever 42：1, when by knee lean on mandril
When 3 driving knees swing progress knee by presser foot lifter by presser foot lifter lever 42, the driving knee that moves up by knee by mandril 3 leans on presser foot lifter thick stick
Bar 42 is swung around fixed axis, drives presser foot component 7 to move up by pull rod 5 and presser bar lifting mechanisms 6, realizes that knee leans on presser foot lifter；
At this point, avoiding mechanism makes automatic needle-foot-lifting lever 41 not swing, and therefore, the fore-set 2 being connected with automatic needle-foot-lifting lever 41
It does not swing, therefore is not in the phenomenon that fore-set 2 is with the interference of sewing machine case 12, collision when knee leans on presser foot lifter, so that this
There is enough knees to lean on presser foot lifter height for application, can ensure that knee reaches 13mm, meets the requirements by the maximum height of presser foot lifter.2、
When driving automatic needle-foot-lifting lever 41 to carry out automatic needle-foot-lifting by automatic needle-foot-lifting driving source component 1, pass through automatic needle-foot-lifting
The driving fore-set 2 that moves up of the moving portion of 1 upper end of driving source component moves up, and then drives automatic needle-foot-lifting lever 41 around fixation
Axis oscillating, at this point, avoiding mechanism makes knee by presser foot lifter lever 42 with 41 synchronous hunting of automatic needle-foot-lifting lever, by knee by lift
Presser feet lever 42 drives pull rod 5 to move, then drives presser foot component 7 to move up by presser bar lifting mechanisms 6, realizes automatic needle-foot-lifting.
In the application, auto lifting pressure when knee leans on the swaying direction and automatic needle-foot-lifting of presser foot lifter lever 42 when knee leans on presser foot lifter
The swaying direction of foot lever 41 is identical, all to be swung to the left towards the direction of tail.The avoiding mechanism has following two preferred
Embodiment：
Avoiding mechanism preferred embodiment one, as shown in Figures 3 to 5, avoiding mechanism includes from automatic needle-foot-lifting lever 41
The bending part 43 that extends at right side is formed in the cavity zone 44 of 43 inner circumferential side of bending part and is located at knee and leans on presser foot lifter lever
Swing rod portion 45 on 42；Knee leans on the swaying direction that presser foot lifter lever 42 is swung to the left, the bending part 43 when leaning on presser foot lifter along knee
It is located at the right side in swing rod portion 45, bending part 43 is generally concave, therefore bending part 43 is equipped with to avoid and open in the left side of cavity zone 44
Oral area 46 is equipped with driving swing part 47 on the right side of cavity zone 44, and the swing rod portion 45 is located at cavity zone 44 and evacuation opening portion
In 46 and positioned at the left side of driving swing part 47.When knee leans on presser foot lifter, knee is moved up by mandril 3, and driving knee leans on presser foot lifter thick stick
Bar 42 is swung to the left, then knee leans on the swing rod portion 45 on presser foot lifter lever 42 in cavity zone 44 and evacuation opening portion 46 to far from certainly
The direction of driving swing part 47 is swung to the left on dynamic presser foot lifter lever 41, therefore swing rod portion 45 does not abut, certainly with driving swing part 47
Dynamic presser foot lifter lever 41 and the correlated parts on automatic needle-foot-lifting lever 41 are not swung, and knee drives by presser foot lifter lever 42
Dynamic pull rod 5 is moved to the left, and drives presser foot component 7 to move up by presser bar lifting mechanisms 6, realizes that knee leans on presser foot lifter.Automatic needle-foot-lifting
When, the moving portion of automatic needle-foot-lifting driving source component 1 upper end is stretched out upwards, by fore-set 2 drive automatic needle-foot-lifting lever 41 to
Left swing is dynamic, then the driving swing part 47 on automatic needle-foot-lifting lever 41 is swung to the left together, then is driven on automatic needle-foot-lifting lever 41
Dynamic swing part 47 is abutted against with swing rod portion 45 of the knee on presser foot lifter lever 42, therefore automatic needle-foot-lifting lever 41 can drive knee by lift
Presser feet lever 42 is swung to the left together, then knee drives pull rod 5 to be moved to the left by presser foot lifter lever 42, passes through presser bar lifting mechanisms 6
Driving presser foot component 7 moves up, and realizes automatic needle-foot-lifting.
Avoiding mechanism preferred embodiment two, as shown in Figure 6 to 7, avoiding mechanism include from knee lean on presser foot lifter lever 42
The bending part 43 that extends at left side is formed in the cavity zone 44 of 43 inner circumferential side of bending part and is located at automatic needle-foot-lifting lever
Swing rod portion 45 on 41；Knee leans on the swaying direction that presser foot lifter lever 42 is swung to the left, the bending part 43 when leaning on presser foot lifter along knee
It is located at the left side in swing rod portion 45, the bending part 43 is equipped with evacuation opening portion 46, in cavity zone 44 on the right side of cavity zone 44
Left side is equipped with driving swing part 47, and the swing rod portion 45 is located in cavity zone 44 and evacuation opening portion 46 and is swung positioned at driving
The right side in portion 47.When knee leans on presser foot lifter, knee is moved up by mandril 3, and driving knee is swung to the left by presser foot lifter lever 42, then knee leans on
Driving swing part 47 on presser foot lifter lever 42 is swung to the left to the direction far from 41 upper pendulum bar portion 45 of automatic needle-foot-lifting lever, therefore
Swing rod portion 45 do not abut to driving swing part 47, automatic needle-foot-lifting lever 41 and related on automatic needle-foot-lifting lever 41
Part is not swung, and knee drives pull rod 5 to be moved to the left by presser foot lifter lever 42, and presser foot component 7 is driven by presser bar lifting mechanisms 6
It moves up, realizes that knee leans on presser foot lifter.When automatic needle-foot-lifting, the moving portion of 1 upper end of automatic needle-foot-lifting driving source component is stretched out upwards, is led to
Crossing fore-set 2 drives automatic needle-foot-lifting lever 41 to swing to the left, and the swing rod portion 45 on automatic needle-foot-lifting lever 41 is swung to the left together,
Then 41 upper pendulum bar portion 45 of automatic needle-foot-lifting lever is abutted against with driving swing part 47 of the knee on presser foot lifter lever 42, therefore auto lifting
Presser feet lever 41 can drive knee to be swung to the left together by presser foot lifter lever 42, then knee drives pull rod 5 to the left by presser foot lifter lever 42
It is mobile, it drives presser foot component 7 to move up by presser bar lifting mechanisms 6, realizes automatic needle-foot-lifting.
In the embodiment one and embodiment two of above-mentioned avoiding mechanism, as shown in Figures 5 to 7, driving swing part 47 is towards pendulum
Be installed with elastic buffering pad on the end face of bar portion 45, when automatic needle-foot-lifting lever 41 drive knee by presser foot lifter lever 42 together to the left
When swing, driving swing part 47 is the relationship abutted with swing rod portion 45, then elastic buffering pad can avoid driving from putting into row buffering
Dynamic portion 47 is in direct contact with swing rod portion 45, noise when effectively reducing lifting pressre of sewing machine structure execution automatic needle-foot-lifting and shake
It is dynamic.The composition structure of elastic buffering pad is：It is arranged with rubber ring 9 on driving swing part 47, is located at driving swing part 47 and swing rod
A part of rubber ring 9 between portion 45 constitutes the elastic buffering pad.Meanwhile the embodiment one and embodiment of above-mentioned avoiding mechanism
In two, bending part 43 can be arranged to various shapes, according to the different shape of bending part 43, be formed in 43 inner circumferential side of bending part
Cavity zone 44 can take the shape of the letter U, L-shaped or other shapes.
In addition, the knee leans on the articulated structure of mandril 3 and knee between presser foot lifter lever 42, there are three preferred embodiments：It is real
Apply example one, as shown in figure 3, knee is hinged between presser foot lifter lever 42 by a front and back screw extended by mandril 3 and knee.It is real
Apply example two, as shown in Figure 8 and Figure 9, knee is hinged by mandril 3 by linkwork by presser foot lifter lever 42 with knee, when by automatic
When presser foot lifter drives source component 1 that automatic needle-foot-lifting lever 41 is driven to carry out automatic needle-foot-lifting, linkwork can make knee lean on mandril 3
It is not moved up by the swing of presser foot lifter lever 42 with knee, therefore the embodiment is than more preferably structure.Linkwork can be with
It uses with lower structure：Linkwork includes the mandril screw 8 for leaning on presser foot lifter lever 42 hinged with knee by mandril 3 on knee, Yi Jikai
It is located at knee and leans on the sliding slot 421 extended on presser foot lifter lever 42 and up and down, extend before and after mandril screw 8 and be threaded through in sliding slot 421,
And it can be moved up and down relative to sliding slot 421；Under original state, when non-knee leans on presser foot lifter and automatic needle-foot-lifting, mandril screw 8 is located at
The upper end of sliding slot 421.Therefore, when knee leans on presser foot lifter, knee is moved up by mandril 3, since mandril screw 8 abuts sliding slot
The cell wall of 421 upper ends, therefore knee can drive knee to be swung to the left by presser foot lifter lever 42 by mandril 3, realize that knee leans on presser foot lifter；Automatic
When presser foot lifter, although automatic needle-foot-lifting lever 41 drives knee to be swung to the left together by presser foot lifter lever 42 by avoiding mechanism,
It is that sliding slot 421 of the knee on presser foot lifter lever 42 is moved up relative to mandril screw 8, therefore 8 position of mandril screw is constant, from
And knee is not moved up with knee by the swing of presser foot lifter lever 42 by mandril 3 when executing automatic needle-foot-lifting action.Embodiment three, such as
Shown in Figure 10, knee integrally provided with the cylinder interconnecting piece 31 extended forward and is located at cylinder interconnecting piece 31 by the upper end of mandril 3
The limiting section 32 of front end, knee offers on presser foot lifter lever 42 to be connected with 31 matched circular hole portion 422 of cylinder interconnecting piece, cylinder
Socket part 31 is rotationally threaded through in circular hole portion 422, and limiting section 32 is located at the outside (i.e. front side) in circular hole portion 422 and is leaned on knee
Presser foot lifter lever 42 abuts, diameter of the limiting section 32 in flat platy structure and length more than circular hole portion 422, therefore limiting section
32 can limit cylinder interconnecting piece 31 deviates from from circular hole portion 422；When installation, knee is worn by the lower end of mandril 3 from circular hole portion 422
Enter can be realized articulated connection of the knee by mandril 3 and knee between presser foot lifter lever 42.
As shown in Figures 3 to 5, rotatable idler wheel 11, the idler wheel 11 and automatic needle-foot-lifting are arranged on the fore-set 2
The moving portion of 1 upper end of driving source component abuts against, and idler wheel 11 carries out axial limiting by the baffle ring being fixed on fore-set 2.
The preferred structure of the presser bar lifting mechanisms 6 is：As is illustrated by figs. 11 and 12, presser bar lifting mechanisms 6 include having
The preceding lever 61 of fixed swing pivot, is fixed on 62 upper end of compression bar and the pressure with protrusion at the compression bar 62 that can be moved up and down
Rod carrier 63 and the lift connection plate 65 being connected with the protrusion of presser bar spring bracket 63 by pin 64；Preceding lever 61 passes through
The one front and back pin-hinges extended are in casing 12；Compression bar 62 can be threaded through up or down in compression bar set 66, and compression bar set 66 is fixed
In casing 12；The upper end of preceding lever 61 is hinged with the right end of pull rod 5, and the lower end of preceding lever 61 is cut with scissors with the upper end of lift connection plate 65
It connects；The lower end of lift connection plate 65 offers the link slot 651 extended up and down, and pin 64 is threaded through in link slot 651 and is located at
The lower end of link slot 651；Presser foot component 7 is mounted on the lower end of compression bar 62.When knee leans on presser foot lifter or automatic needle-foot-lifting, knee is pressed by lift
Foot lever 42 can all be swung to the left, and lever 61 is swung to the left before being driven by pull rod 5, and then drive lift connection plate 65 to moving up
It is dynamic, and the lower end cell wall of link slot 651 is abutted with pin 64 in lift connection plate 65, therefore lift connection plate 65 passes through 64 band of pin
Dynamic pressure rod carrier 63, compression bar 62 and presser foot component 7 move up together, realize that knee leans on presser foot lifter or automatic needle-foot-lifting.
In conclusion the present invention effectively overcomes various shortcoming in 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
The personage for knowing this technology can all carry out modifications and changes to above-described embodiment without violating the spirit and scope of the present invention.Cause
This, institute is complete without departing from the spirit and technical ideas disclosed in the present invention by those of ordinary skill in the art such as
At all equivalent modifications or change, should by the present invention claim be covered.
Claims (12)
1. a kind of lifting pressre of sewing machine structure, including automatic needle-foot-lifting driving source component (1), fore-set (2), knee by mandril (3), after
Lever assembly (4), pull rod (5), presser bar lifting mechanisms (6) and the presser foot component mounted on presser bar lifting mechanisms (6) lower end
(7), it is characterised in that：Lever assembly (4) includes the automatic needle-foot-lifting lever that can be swung around same fixed axis after described
(41) and knee leans on presser foot lifter lever (42), and one end of the fore-set (2) is connected, separately with one end of automatic needle-foot-lifting lever (41)
One end and the moving portion of automatic needle-foot-lifting driving source component (1) abut against, and the knee is by one end of presser foot lifter lever (42) and knee
By mandril (3), the hinged, other end and pull rod (5) one end are hinged, and pull rod (5) other end is upper with presser bar lifting mechanisms (6)
End is connected；The automatic needle-foot-lifting lever (41) and knee have avoiding mechanism between presser foot lifter lever (42), are leaned on when by knee
Mandril (3) driving knee swings the when of carrying out knee by presser foot lifter by presser foot lifter lever (42), the avoiding mechanism makes automatic needle-foot-lifting thick stick
Bar (41) is not swung, when by automatic needle-foot-lifting driving source component (1) driving automatic needle-foot-lifting lever (41) progress automatic needle-foot-lifting
When, the avoiding mechanism make knee by presser foot lifter lever (42) with automatic needle-foot-lifting lever (41) synchronous hunting.
2. lifting pressre of sewing machine structure according to claim 1, it is characterised in that：Knee leans on presser foot lifter thick stick when knee leans on presser foot lifter
The swaying direction of bar (42) is identical with the swaying direction of automatic needle-foot-lifting lever (41) when automatic needle-foot-lifting；The avoiding mechanism packet
Include the bending part (43) extended from automatic needle-foot-lifting lever (41), the cavity zone for being formed in bending part (43) inner circumferential side
(44) and it is located at swing rod portion (45) of the knee on the presser foot lifter lever (42)；Knee leans on presser foot lifter lever when leaning on presser foot lifter along knee
(42) swaying direction swung to the left, the bending part (43) are located at the right side of swing rod portion (45), and the bending part (43) is in sky
The left side in alveolus (44) is equipped with evacuation opening portion (46), is equipped with driving swing part (47), the pendulum on the right side of cavity zone (44)
Bar portion (45) is located at cavity zone (44) and avoids in opening portion (46) and positioned at the left side of driving swing part (47).
3. lifting pressre of sewing machine structure according to claim 1, it is characterised in that：Knee leans on presser foot lifter thick stick when knee leans on presser foot lifter
The swaying direction of bar (42) is identical with the swaying direction of automatic needle-foot-lifting lever (41) when automatic needle-foot-lifting；The avoiding mechanism packet
Include the bending part (43) extended on presser foot lifter lever (42) from knee, the cavity zone for being formed in bending part (43) inner circumferential side
(44) and the swing rod portion (45) that is located on automatic needle-foot-lifting lever (41)；Knee leans on presser foot lifter lever when leaning on presser foot lifter along knee
(42) swaying direction swung to the left, the bending part (43) are located at the left side of swing rod portion (45), and the bending part (43) is in sky
The right side in alveolus (44) is equipped with evacuation opening portion (46), is equipped with driving swing part (47), the pendulum in the left side of cavity zone (44)
Bar portion (45) is located at cavity zone (44) and avoids in opening portion (46) and positioned at the right side of driving swing part (47).
4. according to claim 1-3 any one of them lifting pressre of sewing machine structures, it is characterised in that：The knee leans on presser foot lifter thick stick
Bar (42) is hinged by mandril (3) by linkwork with knee, when by automatic needle-foot-lifting driving source component (1) driving auto lifting pressure
When foot lever (41) carries out automatic needle-foot-lifting, the linkwork makes knee not lean on presser foot lifter lever (42) with knee by mandril (3)
It swings and moves.
5. lifting pressre of sewing machine structure according to claim 4, it is characterised in that：The linkwork includes by knee by top
Bar (3) and knee by the hinged mandril screw (8) of presser foot lifter lever (42) and be opened in knee on presser foot lifter lever (42) and on
The sliding slot (421) of lower extension, the mandril screw (8) are threaded through in sliding slot (421) and can be relative to being moved down on sliding slot (421)
It is dynamic；When non-knee leans on presser foot lifter and automatic needle-foot-lifting, the mandril screw (8) is located at the upper end of sliding slot (421).
6. according to claim 1-3 any one of them lifting pressre of sewing machine structures, it is characterised in that：The knee leans on mandril (3)
Upper end integrally provided with cylinder interconnecting piece (31) and be located at the limiting section (32) of cylinder interconnecting piece (31) outer end, the knee
It is offered on presser foot lifter lever (42) and the matched circular hole portion (422) of cylinder interconnecting piece (31), the cylinder interconnecting piece
(31) it is rotationally threaded through in circular hole portion (422), the limiting section (32) is located at the outside in circular hole portion (422) and is leaned on knee
Presser foot lifter lever (42) abuts.
7. lifting pressre of sewing machine structure according to claim 2 or 3, it is characterised in that：Driving swing part (47) face
It is installed with elastic buffering pad on the end face of swing rod portion (45).
8. lifting pressre of sewing machine structure according to claim 7, it is characterised in that：It is arranged on the driving swing part (47)
There is rubber ring (9), a part of rubber ring (9) composition elasticity being located between driving swing part (47) and swing rod portion (45) is slow
Punching pad.
9. lifting pressre of sewing machine structure according to claim 1, it is characterised in that：The automatic needle-foot-lifting lever (41) and
Knee leans on the casing (12) that is articulated with sewing machine of the presser foot lifter lever (42) by an axial screw (10) coaxial line.
10. lifting pressre of sewing machine structure according to claim 1, it is characterised in that：It is arranged with and can turn on the fore-set (2)
Dynamic idler wheel (11), the idler wheel (11) drive the moving portion of source component (1) upper end to abut against with automatic needle-foot-lifting.
11. lifting pressre of sewing machine structure according to claim 1, it is characterised in that：The presser bar lifting mechanisms (6) include
With the preceding lever (61), the compression bar (62) that can be moved up and down, the compression bar for being fixed on compression bar (62) upper end for fixing swing pivot
Saddle (63) and the lift connection plate (65) being connected with presser bar spring bracket (63) by pin (64), the preceding lever (61)
One end and pull rod (5) be hinged, the upper end of the other end and lift connection plate (65) is hinged, the lower end of the lift connection plate (65)
The link slot (651) extended up and down is offered, the pin (64) is threaded through in link slot (651) and is located at link slot (651)
Lower end, the presser foot component (7) be mounted on compression bar (62) lower end.
12. a kind of sewing machine, it is characterised in that：Claim 1-11 any one of them sewing machines are installed in the sewing machine
Presser foot lifter structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810558315.6A CN108611770B (en) | 2018-06-01 | 2018-06-01 | Sewing machine lifts presser foot structure and sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810558315.6A CN108611770B (en) | 2018-06-01 | 2018-06-01 | Sewing machine lifts presser foot structure and sewing machine |
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| Publication Number | Publication Date |
|---|---|
| CN108611770A true CN108611770A (en) | 2018-10-02 |
| CN108611770B CN108611770B (en) | 2020-08-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810558315.6A Active CN108611770B (en) | 2018-06-01 | 2018-06-01 | Sewing machine lifts presser foot structure and sewing machine |
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| Country | Link |
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| CN (1) | CN108611770B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112626726A (en) * | 2019-09-24 | 2021-04-09 | 杰克缝纫机股份有限公司 | Feed lifting height adjusting mechanism and sewing machine |
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| US4246856A (en) * | 1979-07-13 | 1981-01-27 | The Singer Company | Presser foot lift operable independently by manual or power devices |
| CN203144677U (en) * | 2013-03-20 | 2013-08-21 | 新杰克缝纫机股份有限公司 | Presser foot mechanism |
| CN204000196U (en) * | 2014-07-29 | 2014-12-10 | 浙江宝石机电股份有限公司 | A kind of presser foot lifting device of Sewing machines |
| CN204919000U (en) * | 2015-10-28 | 2015-12-30 | 浙江美机缝纫机有限公司 | Sewing machine lifts presser foot device |
| CN206109689U (en) * | 2016-09-30 | 2017-04-19 | 浙江中捷缝纫科技有限公司 | Presser foot lifting mechanism of sewing machine |
| CN107345341A (en) * | 2017-09-12 | 2017-11-14 | 杰克缝纫机股份有限公司 | A kind of lifting pressre of sewing machine structure and sewing machine |
| CN207143456U (en) * | 2017-09-12 | 2018-03-27 | 杰克缝纫机股份有限公司 | Foot lifting mechanism and sewing machine |
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2018
- 2018-06-01 CN CN201810558315.6A patent/CN108611770B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4246856A (en) * | 1979-07-13 | 1981-01-27 | The Singer Company | Presser foot lift operable independently by manual or power devices |
| CN203144677U (en) * | 2013-03-20 | 2013-08-21 | 新杰克缝纫机股份有限公司 | Presser foot mechanism |
| CN204000196U (en) * | 2014-07-29 | 2014-12-10 | 浙江宝石机电股份有限公司 | A kind of presser foot lifting device of Sewing machines |
| CN204919000U (en) * | 2015-10-28 | 2015-12-30 | 浙江美机缝纫机有限公司 | Sewing machine lifts presser foot device |
| CN206109689U (en) * | 2016-09-30 | 2017-04-19 | 浙江中捷缝纫科技有限公司 | Presser foot lifting mechanism of sewing machine |
| CN107345341A (en) * | 2017-09-12 | 2017-11-14 | 杰克缝纫机股份有限公司 | A kind of lifting pressre of sewing machine structure and sewing machine |
| CN207143456U (en) * | 2017-09-12 | 2018-03-27 | 杰克缝纫机股份有限公司 | Foot lifting mechanism and sewing machine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112626726A (en) * | 2019-09-24 | 2021-04-09 | 杰克缝纫机股份有限公司 | Feed lifting height adjusting mechanism and sewing machine |
| CN112626726B (en) * | 2019-09-24 | 2022-07-05 | 杰克科技股份有限公司 | Feed lifting height adjusting mechanism and sewing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108611770B (en) | 2020-08-18 |
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Address after: 318010 No. 1008, east section of Donghai Avenue, Sanjia, Jiaojiang District, Taizhou City, Zhejiang Province Patentee after: Jack Technology Co.,Ltd. Address before: 318010 No. 15 Airport South Road, Jiaojiang District, Zhejiang, Taizhou Patentee before: JACK SEWING MACHINE Co.,Ltd. |
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