CN207176228U - A kind of electromagnet foot lifting mechanism of sewing machine - Google Patents
A kind of electromagnet foot lifting mechanism of sewing machine Download PDFInfo
- Publication number
- CN207176228U CN207176228U CN201721007248.6U CN201721007248U CN207176228U CN 207176228 U CN207176228 U CN 207176228U CN 201721007248 U CN201721007248 U CN 201721007248U CN 207176228 U CN207176228 U CN 207176228U
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- electromagnet
- connecting rod
- bar
- lifting mechanism
- foot lifting
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Abstract
The utility model provides a kind of electromagnet foot lifting mechanism of sewing machine, belongs to sewing machine technique field.It solves now cranked complicated, it has not been convenient to fabricates, and driver is vertically arranged so that the space of foot lifting mechanism occupancy is more, and integrally-built compactedness is poor.The electromagnet foot lifting mechanism of this sewing machine, including electromagnet, rotating shaft, riser and depression bar, one end of the rotating shaft is fixed with connecting rod, the other end is fixed with the crank for connecting riser, the connecting rod thickeies in bar shaped tabular and one end to be set, on the connecting rod one end relative with upset end down, the electromagnet fell setting and the outer end of the push rod of electromagnet be flexibly connected with the lower end of connecting rod.The connecting rod of electromagnet foot lifting mechanism of the present utility model is in bar shaped tabular, and the structure of connecting rod is simple, and convenient processing and manufacturing, connecting rod and electromagnet are arranged such that the overall structure of foot lifting mechanism is more compact, and the space of occupancy is small.
Description
Technical field
The utility model belongs to field of mechanical technique, is related to a kind of sewing machine, the electromagnet lift of particularly a kind of sewing machine
Presser foot device.
Background technology
Sewing machine is with one or more sewing thread, and one or more stitchings are formed on sewing, make one or more layers seam
The machine that material interweaves or united by a seam, and foot lifting mechanism is the important component of sewing machine, foot lifting mechanism is used to stitch
Cloth is pushed down in the process such as system or cutting cloth, prevents cloth to be subjected to displacement, so as to ensure the sewing effect of cloth.
At present, Chinese patent net discloses a kind of thick material flat seam machine automatic needle-foot-lifting device (application number：
201410299199.2), it includes vertically arranged driver, and the motion bar of driver is connected by one end of crank one and rotating shaft
Connect, crank one is L-shaped, and the horizontal part of crank one is provided with bar hole, and the lower end of described Drive Activity bar is provided with opening
Groove, for the horizontal position of crank one in open slot, bearing pin is through the bar hole of the lower end of motion bar and crank one and passes through opening
Pin realizes the connection of motion bar and crank one, is connected with crank two in the other end of rotating shaft, crank two is connected with lift lever, carried
The corner of liter lever is hinged on casing upper and lower end and is connected by raising rod with presser foot device, driver drives rotating shaft action,
Rotating shaft drives crank two and then drives lift lever action, and lift lever drives raising rod to realize that presser foot device acts.It is above-mentioned
Crank one it is complicated, it has not been convenient to fabricate, and driver it is vertically arranged cause foot lifting mechanism take space compared with
More, integrally-built compactedness is poor.
The content of the invention
The purpose of this utility model is above mentioned problem be present for existing technology, it is proposed that a kind of electromagnet of sewing machine
Foot lifting mechanism, the technical problem that the utility model solves are：How to simplify the structure of connecting rod make its convenient processing and manufacturing and
So that the overall structure of foot lifting mechanism is more compact, reduce space-consuming.
The purpose of this utility model can be realized by following technical proposal：A kind of electromagnet presser foot lifter machine of sewing machine
Structure, including electromagnet, rotating shaft, riser and depression bar, one end of the rotating shaft is fixed with connecting rod, the other end is fixed with connection lifting
The crank of plate, the riser are connected with depression bar by transmission mechanism, it is characterised in that the connecting rod is in bar shaped tabular and one end
Thicken and set, the upset end of the connecting rod has two clamping parts, and two clamping parts, which coordinate, to be clamped in rotating shaft, on the connecting rod and
The relative one end of upset end down, the electromagnet fell setting and the push rod of electromagnet outer end and connecting rod lower end activity even
Connect.
The operation principle of this foot lifting mechanism is：The protruding drivening rod of push rod of electromagnet rotates, and link rotatable leads to
Crossing rotating shaft drives crank to rotate, and crank, which rotates, drives riser to swing, and riser swings by transmission mechanism and drives depression bar upward
Lift, realize that foot lifting mechanism acts.Connecting rod in this foot lifting mechanism is in bar shaped tabular, and the structure of connecting rod is simple, convenient to add
Work manufactures, and one end of connecting rod thickeies and sets two clamping parts are convenient connecting rod is fixed in rotating shaft, thickeies the clamping part of setting
So that connecting rod fixing-stable, firm in rotating shaft, above-mentioned connecting rod and electromagnet is arranged such that the overall knot of foot lifting mechanism
Structure is more compact, and the space of occupancy is small.
In a kind of electromagnet foot lifting mechanism of above-mentioned sewing machine, longitudinal direction is opened on the relative two sides of two clamping parts
It is semicircular bar-shaped trough provided with cross section, two bar-shaped troughs are combined to form mounting hole, and the connecting rod is set in by mounting hole to be turned
On axle, the fastener hole of insertion is laterally offered on two clamping parts, two fastener holes are coaxially disposed and are staggered with mounting hole, lead to
Fastener is crossed connecting rod is fixed in rotating shaft through two fastener holes.During installation, connecting rod is set in rotating shaft by mounting hole, will
Two clamping parts are tensed by mounting hole and rotating shaft close-fitting by fastener；When connecting rod is dismantled, after fastener is extracted, on connecting rod
Mounting hole and rotating shaft between be in loosening state, you can connecting rod is unloaded from rotating shaft.Installation, dismounting of the connecting rod in rotating shaft
It is convenient.
In a kind of electromagnet foot lifting mechanism of above-mentioned sewing machine, the outer end of the push rod of the electromagnet is fixed with electricity
Magnet joint, open slot is offered vertically on the outer face of the electromagnet joint, the lower end of the connecting rod extends open slot
Be provided with bar hole vertically on interior and connecting rod in the open slot, the outer end of electromagnet joint is run through by transverse axis and passes through bar
Connecting rod is connected on electromagnet joint by shape hole.Transverse axis is driven along bar by electromagnet joint when the push rod of electromagnet is protruding
Shape hole is moved, and drivening rod rotates during transverse axis moves along bar hole, and then drives rotating shaft and area's crank to rotate.
In a kind of electromagnet foot lifting mechanism of above-mentioned sewing machine, there is protuberance, the song on the riser
One end of handle is connected in rotating shaft, and the other end of the crank is located at the side of protuberance and towards having on the side of riser
Projection, the projection are resisted against on the lower surface of protuberance.Crank one is jacked up riser by projection when rotating so that lifting
Plate is swung, and riser swings by transmission mechanism and drives depression bar to be lifted up.
In a kind of electromagnet foot lifting mechanism of above-mentioned sewing machine, on the front end face and rear end face of the electromagnet
Provided with installing plate, the electromagnet can be fixed on sewing machine case by installing plate.Electromagnet is fixed by two pieces of installing plates
After on sewing machine case, electromagnet is fixed on sewing machine case, and it is stable to be advantageous to work of electromagnet.
In a kind of electromagnet foot lifting mechanism of above-mentioned sewing machine, the transmission mechanism includes being connected on depression bar
Presser bar spring bracket, the electromagnet foot lifting mechanism also include pendulum presser bar, and the presser bar spring bracket drives pendulum pressure by link assembly
Foot lever is lifted up.Riser is to after lower swing, and the presser bar spring bracket in transmission mechanism moves up, and presser bar spring bracket moves up band
Dynamic pressure bar is lifted up, and presser bar spring bracket is lifted up by link assembly band movable pendulum presser bar.
In a kind of electromagnet foot lifting mechanism of above-mentioned sewing machine, the transmission mechanism also includes raising rod and carried
Rise lever, the L-shaped tabular of lift lever, one end of the raising rod and riser are be hinged, the other end and lift lever
One end be hinged, the other end of the lift lever is resisted against on the lower surface of presser bar spring bracket.Riser is to passing through after lower swing
Raising rod, lift lever drive presser bar spring bracket to move up, and presser bar spring bracket, which moves up, drives depression bar and pendulum presser bar to be lifted up.
In a kind of electromagnet foot lifting mechanism of above-mentioned sewing machine, the link assembly include presser bar spring bracket connecting rod,
Presser feet wobble crank and V-shaped presser feet connecting rod crank, the presser bar spring bracket connecting rod is vertically arranged, and the presser feet wobble crank is horizontal
To setting, one end of the presser bar spring bracket connecting rod is hinged on presser bar spring bracket, the other end is hinged on one end of presser feet connecting rod crank,
The middle part of the presser feet connecting rod crank and the upper end of pendulum presser bar are hinged on one end of presser feet wobble crank.Presser bar spring bracket moves up
When by presser bar spring bracket connecting rod and presser feet connecting rod crank drive presser feet wobble crank to be swung up, presser feet wobble crank is swung up
Band movable pendulum presser bar is lifted up.
Compared with prior art, electromagnet foot lifting mechanism of the present utility model has advantages below：Connecting rod is in stripe board
Shape, the structure of connecting rod is simple, convenient processing and manufacturing, and connecting rod is vertically arranged, electromagnet is horizontally disposed and push rod thereon with
Connecting rod is perpendicular, and connecting rod and electromagnet are arranged such that the overall structure of foot lifting mechanism is more compact, and the space of occupancy is small.
Brief description of the drawings
Fig. 1 is dimensional structure diagram of the present utility model.
Fig. 2 is the dimensional structure diagram of connecting rod of the present utility model.
Fig. 3 is the dimensional structure diagram of another angle of the present utility model.
In figure, 1, electromagnet；2nd, rotating shaft；3rd, riser；31st, protuberance；4th, depression bar；5th, connecting rod；51st, clamping part；52nd, pacify
Fill hole；53rd, fastener hole；54th, bar hole；6th, crank；61st, projection；7th, electromagnet joint；71st, open slot；8th, installing plate；9th, press
Rod carrier；10th, presser bar is put；11st, raising rod；12nd, lift lever；13rd, presser bar spring bracket connecting rod；14th, presser feet wobble crank；
15th, presser feet connecting rod crank.
Embodiment
It is specific embodiment of the utility model and with reference to accompanying drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these embodiments.
As shown in figure 1, including electromagnet 1, rotating shaft 2, riser 3 and depression bar 4, electromagnet 1 is fixed on by installing plate 8
On sewing machine case, rotating shaft 2 and riser 3 are rotatably arranged on sewing machine case, one end of rotating shaft 2 be fixed with connecting rod 5,
The other end is fixed with the crank 6 of connection riser 3, and riser 3 is connected with depression bar 4 by transmission mechanism, and connecting rod 5 is in bar shaped tabular
And one end thickeies and set, the upset end of connecting rod 5 has two clamping parts 51, and two clamping parts 51, which coordinate, to be clamped in rotating shaft 2, connecting rod
Down, the fell lower end of outer end and connecting rod 5 of setting and the push rod of electromagnet 1 of electromagnet 1 is lived for one end relative with upset end on 5
Dynamic connection.
More specifically, as shown in Figure 1 and Figure 2, longitudinally offered on the relative two sides of two clamping parts 51 transversal
Face is semicircular bar-shaped trough, and two bar-shaped troughs are combined to form mounting hole 52, and connecting rod 5 is set in rotating shaft 2 by mounting hole 52, two
The fastener hole 53 of insertion is laterally offered on clamping part 51, two fastener holes 53 are coaxially disposed and are staggered with mounting hole 52,
Connecting rod 5 is fixed in rotating shaft 2 through two fastener holes 53 by fastener, the outer end of the push rod of electromagnet 1 is fixed with electromagnetism
Iron joint 7, open slot 71 is offered vertically on the outer face of the electromagnet joint 7, the lower end of the connecting rod 5 extends out
Bar hole 54 is provided with vertically in mouth groove 71 and on the connecting rod 5 in open slot 71, by transverse axis through electromagnet joint 7
Connecting rod 5 is simultaneously connected on electromagnet joint 7 by outer end through bar hole 54.
As shown in figure 3, having protuberance 31 on riser 3, one end of crank 6 is connected in rotating shaft 2, crank 6 it is another
Positioned at the side of protuberance 31 and towards having projection 61 on the side of riser 3, projection 61 is resisted against under protuberance 31 at end
On end face.
As shown in Figure 1, Figure 3, transmission mechanism includes presser bar spring bracket 9, raising rod 11 and lift lever 12, presser bar spring bracket 9
It is connected on depression bar 4, lift lever 12 is hinged on sewing machine case, 12 L-shaped tabular of lift lever, and the one of raising rod 11
End is hinged with riser 3, one end of the other end and lift lever 12 is hinged, and the other end of lift lever 12 is resisted against depression bar and led
On the lower surface of frame 9, presser bar spring bracket 9 drives pendulum presser bar 10 to be lifted up by link assembly.Link assembly is led including depression bar
Frame connecting rod 13, presser feet wobble crank 14 and V-shaped presser feet connecting rod crank 15, presser bar spring bracket connecting rod 13 is vertically arranged, presser feet pendulum
Dynamic crank 14 is laterally set, and one end of presser bar spring bracket connecting rod 13 is hinged on presser bar spring bracket 9, the other end is hinged on presser feet connecting rod song
One end of handle 15, the middle part of presser feet connecting rod crank 15 and the upper end of pendulum presser bar 10 are hinged on the one of presser feet wobble crank 14
End.
The operation principle of this foot lifting mechanism is：Horizontal stroke is driven by electromagnet joint 7 when the push rod of electromagnet 1 is protruding
Axle moves along bar hole 55, and drivening rod 5 rotates during transverse axis moves along bar hole 55, and then drives rotating shaft 2 and crank 6
Rotate, projection 61 thereon is swung up and drives riser 3 to lower swing after crank 6 rotates, and riser 3 is to leading to after lower swing
The rotation that raising rod 11 drives lift lever 11 is crossed, lift lever 11 is resisted against the end of presser bar spring bracket 9 by depression bar after rotating
Saddle 9 jacks up upwards, and presser bar spring bracket 9 drives depression bar 4 to be lifted up after moving up, and passes through presser bar spring bracket when presser bar spring bracket 9 moves up
Connecting rod 13, presser feet connecting rod crank 15 drive presser feet wobble crank 14 to be swung up so that and pendulum presser bar 10 is also lifted up, because
When the push rod of this electromagnet 1 is protruding, depression bar 4 and pendulum presser bar 10 are lifted up simultaneously, realize that presser foot lifter acts.
Specific embodiment described herein is only to the utility model spirit explanation for example.The utility model institute
Category those skilled in the art can make various modifications or supplement to described specific embodiment or using similar
Mode substitute, but without departing from spirit of the present utility model or surmount scope defined in appended claims.
Although electromagnet 1, rotating shaft 2, riser 3, protuberance 31, depression bar 4, connecting rod 5, clamping have more been used herein
Portion 51, mounting hole 52, fastener hole 53, bar hole 54, crank 6, projection 61, electromagnet joint 7, open slot 71, installing plate 8, pressure
Rod carrier 9, pendulum presser bar 10, raising rod 11, lift lever 12, presser bar spring bracket connecting rod 13, presser feet wobble crank 14, presser feet connect
The grade term of pole crank 15, but it is not precluded from the possibility using other terms.Using these terms just for the sake of more easily
Describe and explain essence of the present utility model；Being construed as any additional limitation is all and the utility model spirit
Disagree.
Claims (8)
1. a kind of electromagnet foot lifting mechanism of sewing machine, including electromagnet (1), rotating shaft (2), riser (3) and depression bar (4),
One end of the rotating shaft (2) is fixed with connecting rod (5), the other end is fixed with the crank (6) for connecting riser (3), the riser
(3) it is connected with depression bar (4) by transmission mechanism, it is characterised in that the connecting rod (5) thickeies in bar shaped tabular and one end to be set,
The upset end of the connecting rod (5) has two clamping parts (51), and two clamping parts (51), which coordinate, to be clamped in rotating shaft (2), the company
On bar (5) one end relative with upset end down, the electromagnet (1) fell setting and the outer end of the push rod of electromagnet (1) with
The lower end of connecting rod (5) is flexibly connected.
A kind of 2. electromagnet foot lifting mechanism of sewing machine according to claim 1, it is characterised in that two clamping parts (51)
It is semicircular bar-shaped trough that longitudinal direction, which offers cross section, on relative two sides, and two bar-shaped troughs combine to form mounting hole (52),
The connecting rod (5) is set in rotating shaft (2) by mounting hole (52), and the fastening of insertion is laterally offered on two clamping parts (51)
Hole (53), two fastener holes (53) are coaxially disposed and are staggered with mounting hole (52), run through two fastener holes by fastener
(53) connecting rod (5) is fixed in rotating shaft (2).
A kind of 3. electromagnet foot lifting mechanism of sewing machine according to claim 1, it is characterised in that the electromagnet
(1) outer end of push rod is fixed with electromagnet joint (7), is offered out vertically on the outer face of the electromagnet joint (7)
Mouthful groove (71), the lower end of the connecting rod (5) extend in open slot (71) and on the connecting rod (5) in open slot (71) vertically
Provided with bar hole (54), connecting rod (5) is connected to through the outer end of electromagnet joint (7) and through bar hole (54) by transverse axis
On electromagnet joint (7).
4. the electromagnet foot lifting mechanism of a kind of sewing machine according to claim 1 or 2 or 3, it is characterised in that described to carry
There is protuberance (31), one end of the crank (6) is connected in rotating shaft (2), the other end of the crank (6) on lift slab (3)
Positioned at the side of protuberance (31) and towards having projection (61) on the side of riser (3), the projection (61) is resisted against convex
Go out on the lower surface of portion (31).
A kind of 5. electromagnet foot lifting mechanism of sewing machine according to claim 1 or 2 or 3, it is characterised in that the electricity
Installing plate (8) is equipped with the front end face and rear end face of magnet (1), the electromagnet (1) can be fixed on seam by installing plate (8)
Thread on machine casing.
A kind of 6. electromagnet foot lifting mechanism of sewing machine according to claim 1 or 2 or 3 any one, it is characterised in that
The transmission mechanism includes the presser bar spring bracket (9) being connected on depression bar (4), and the electromagnet foot lifting mechanism also includes pendulum presser feet
Bar (10), the presser bar spring bracket (9) drive pendulum presser bar (10) to be lifted up by link assembly.
A kind of 7. electromagnet foot lifting mechanism of sewing machine according to claim 6, it is characterised in that the transmission mechanism
Also include raising rod (11) and lift lever (12), the L-shaped tabular of the lift lever (12), the raising rod (11)
One end and riser (3) are be hinged, one end of the other end and lift lever (12) is hinged, and the other end of the lift lever (12) supports
On the lower surface for leaning against presser bar spring bracket (9).
A kind of 8. electromagnet foot lifting mechanism of sewing machine according to claim 6, it is characterised in that the link assembly
Including presser bar spring bracket connecting rod (13), presser feet wobble crank (14) and V-shaped presser feet connecting rod crank (15), the presser bar spring bracket connects
Bar (13) is vertically arranged, and the presser feet wobble crank (14) is laterally set, and one end of the presser bar spring bracket connecting rod (13) is hinged on
On presser bar spring bracket (9), the other end be hinged on one end of presser feet connecting rod crank (15), the middle part of the presser feet connecting rod crank (15) and
The upper end of pendulum presser bar (10) is hinged on one end of presser feet wobble crank (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721007248.6U CN207176228U (en) | 2017-08-11 | 2017-08-11 | A kind of electromagnet foot lifting mechanism of sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721007248.6U CN207176228U (en) | 2017-08-11 | 2017-08-11 | A kind of electromagnet foot lifting mechanism of sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207176228U true CN207176228U (en) | 2018-04-03 |
Family
ID=61740495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721007248.6U Active CN207176228U (en) | 2017-08-11 | 2017-08-11 | A kind of electromagnet foot lifting mechanism of sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207176228U (en) |
-
2017
- 2017-08-11 CN CN201721007248.6U patent/CN207176228U/en active Active
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