CN105088549B - A kind of presser feet safety switch of sewing machine - Google Patents
A kind of presser feet safety switch of sewing machine Download PDFInfo
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- CN105088549B CN105088549B CN201510640104.3A CN201510640104A CN105088549B CN 105088549 B CN105088549 B CN 105088549B CN 201510640104 A CN201510640104 A CN 201510640104A CN 105088549 B CN105088549 B CN 105088549B
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Abstract
The present invention provides a kind of presser feet safety switches of sewing machine, belong to technical field of sewing equipment.False sense, which easily occurs, in the presser feet safety switch that it solves existing sewing machine should wait technical problems.Sewing machine includes presser foot component, the presser foot component presser feet arm mobile with presser foot component is able to drive is connect, presser feet safety switch includes presser feet cam and touch switch, sewing machine case is equipped with the presser feet spanner for being able to drive the rotation of presser feet cam, presser feet cam is able to drive the movement of presser feet arm, has the protrusion that can touch touch switch on presser feet cam.Being rotated in the present invention by presser feet cam drives presser feet arm to move up, to realize the lifting of presser foot component, the protrusion on presser feet cam rotates to just opposite with touch switch simultaneously, protrusion squeezes and touches the touch switch of control sewing machine clean boot, to guarantee to rotate the presser feet clean boot for making presser foot component position while rising in presser feet cam.
Description
Technical field
The invention belongs to technical field of sewing equipment, are related to a kind of presser feet safety switch of sewing machine.
Background technique
Sewing machine is formed one or more stitchings on sewing, is made one or more layers seam with one or more sewing thread
The machine that material interweaves or unites by a seam.Fabrics and leather, plastics, the paper such as function of sewing sewing cotton, fiber crops, silk, hair, staple fibre
Equal products, the stitching neat appearance stitched out, it is smooth securely, sewing velocity is fast, uses simplicity.The presser feet of sewing machine is that sewing machine is sent
Expect an essential components in mechanism, various various forms of sewing-machine foots play extremely important in process of production
Effect, such as seizing open-wire line, implicit type zipper sewing machine special presser feet, pleating sewing-machine foot etc. is made in different sewings
Select different sewing-machine foots extremely important in industry.When threading to syringe needle, presser feet lifts usual operator,
It should forbid sewing machine starting operating at this time.
China's patent (notification number: CN203065789U；Publication date: 2013-07-17) disclose a kind of overedger presser feet peace
Full switch structure is equipped with compression bar, the end of compression bar above presser feet arm including presser foot component and the presser feet arm connecting with presser foot component
Equipped with card slot, compression bar is stuck on presser feet arm by card slot, and the touch switch connecting with control system is fixed on presser feet arm, is touched
Movable block is equipped between switch and the end of compression bar, movable block pushes down touch switch, touch switch under the pressure effect of compression bar
Transmit a signal to control system.
In the overedger presser feet safety switch construction of above-mentioned patent disclosure, when presser feet arm takes out, presser feet arm it is mobile away from
In the case where too small, hall sensor is in sense state, and the safety switch of presser feet arm will not normally start, can exist
Security risk.
Summary of the invention
The present invention addresses the above problems in the prior art, provides a kind of presser feet safety switch of sewing machine, this hair
It is bright the technical problem to be solved is that: how to improve the sensitivity of sewing-machine foot safety switch and answered with reducing safety switch false sense
Risk.
Object of the invention can be realized by the following technical scheme:
A kind of presser feet safety switch of sewing machine, sewing machine include presser foot component, presser foot component and are able to drive the pressure
The mobile presser feet arm connection of foot component, which is characterized in that the presser feet safety switch includes presser feet cam and touch switch, sewing
Machine casing is equipped with the presser feet spanner for being able to drive the presser feet cam rotation, and the presser feet cam is able to drive the presser feet arm
It is mobile, there is the protrusion that can touch the touch switch on the presser feet cam.
The principle is as follows: presser feet spanner is arranged on sewing machine case, and one end is rotatably coupled on sewing machine case,
The other end is free end, when moving presser feet spanner, so that the free end of presser feet spanner is rotated around connecting pin, is fixedly connected on
The presser feet cam of presser feet spanner connecting pin can follow the swing of presser feet spanner and rotate, being capable of band after rotating a certain angle
Dynamic pressure foot arm moves up, to realize the lifting of presser foot component, completes presser foot lifter movement；At the same time, the protrusion on presser feet cam
Rotate to, protrusion extruding and the touch switch that touches control sewing machine clean boot, to guarantee just opposite with touch switch
The presser feet clean boot that the rotation of presser feet cam makes presser foot component position while rising, the operation of operator are protected safely
Barrier.
Presser foot component in the technical program includes presser feet bottom plate and presser foot rack, and the upper surface of presser feet bottom plate offers semicircle
The through slot of shape, the end of presser foot rack have the flange of arc, which is fastened in through slot.
In the presser feet safety switch of above-mentioned sewing machine, the foot-pressing bar being vertically arranged, institute are connected on the presser feet arm
The presser feet pin being connected on foot-pressing bar along the setting of foot-pressing bar radial direction is stated, the presser feet pin and the presser feet cam abutment connect
It connects.Since foot-pressing bar is connect by presser feet pin with presser feet cam, the rotation of presser feet cam can drive presser feet by cam structure
Stick lifting realizes the lifting and reduction of presser foot component so that presser feet arm be driven to go up and down.
In the presser feet safety switch of above-mentioned sewing machine, the outer sliding sleeve of the foot-pressing bar is equipped with stick set, the stick set
Axial direction on side wall along stick set open up it is fluted, the presser feet pin pass through the groove and both ends respectively with the foot-pressing bar and institute
State the connection of presser feet cam.It can guarantee that foot-pressing bar is steady reliable upper and lower under presser feet cam driven by the position-limiting action that stick covers
Sliding, to guarantee the steady of presser foot lifter lifting.
In the presser feet safety switch of above-mentioned sewing machine, the edge of the presser feet cam has and can jack up presser feet pin
Jacking portion, the jacking portion and the bulge clearance be arranged, and has the arc to match with the presser feet pin in the jacking portion
Shape slot.Presser feet cam rotates so that jacking portion jacks up presser feet pin, to realize the lifting of presser foot component, presser feet pins position is in arc
Position is able to maintain in slot to stablize.
In the presser feet safety switch of above-mentioned sewing machine, the edge-smoothing of the side of the protrusion and the presser feet cam
The edge of linking, the other side of the protrusion and the presser feet cam forms card slot.In the rotation of presser feet Cam reciprocating, touch switch
When opposite with the edge of presser feet cam be in non-sense state, along protrusion with presser feet cam link up smoothly side slide into
When protrusion is opposite, touch switch then squeezes induction by protrusion, and above structure ensure that protrusion squeezes the steady of touch switch, protrusion
The card slot formed with presser feet cam is for limiting presser feet pin, and when presser feet pin is in the card slot, presser foot component is in down
Drop state.
In the presser feet safety switch of above-mentioned sewing machine, the end of the presser feet spanner is connected with cam pin and the pressure
Foot spanner is able to drive the cam pin and connects along own axis, the presser feet cam and cam pin clamping.Presser feet
Spanner is arranged outside sewing machine case, and the inside of sewing machine case is arranged in presser feet cam, guarantees the convenience of operation in this way
With the safety used, cam pin passes through sewing machine case and is rotatably connected on sewing machine case, pulls presser feet spanner, drives
Cam pin rotation, so that presser feet cam be driven to rotate.
In the presser feet safety switch of above-mentioned sewing machine, the touch switch is pressure sensor, the pressure sensing
There is pressure elastic slice on device.Protrusion on presser feet cam gives pressure sensor sense with squeeze pressure elastic slice after the rotation of presser feet cam
The signal is simultaneously passed to controller by induction signal, to open safe mode by controller, avoids the error starting of sewing machine.
Compared with prior art, being rotated in the present invention by presser feet cam drives presser feet arm to move up, to realize presser feet group
Presser foot lifter movement is completed in the lifting of part；The protrusion on presser feet cam rotates to just opposite with touch switch at the same time, and protrusion is squeezed
The touch switch of control sewing machine clean boot is pressed and touches, so that guaranteeing to rotate in presser feet cam rises presser foot component position
While the presser feet clean boot that makes, the operation of operator obtains safety guarantee, securely and reliably, high sensitivity.
Detailed description of the invention
Fig. 1 is the schematic perspective view of this presser feet safety switch.
Fig. 2 is the inner connecting structure schematic diagram of this presser feet safety switch.
Fig. 3 is the partial enlargement structural representation in Fig. 2.
Fig. 4 is the schematic perspective view of presser feet cam in this presser feet safety switch.
In figure, 1, presser feet arm；2, presser foot component；21, presser feet bottom plate；22, presser foot rack；3, presser feet cam；31, raised；32,
Jacking portion；32a, arc groove；33, card slot；4, touch switch；41, pressure sensor；41a, pressure elastic slice；5, presser feet spanner；6,
Foot-pressing bar；7, stick set；71, groove；8, presser feet pin；9, cam pin；10, sewing machine case.
Specific embodiment
Following is a specific embodiment of the present invention in conjunction with the accompanying drawings, technical scheme of the present invention will be further described,
However, the present invention is not limited to these examples.
As shown in Figure 1, Figure 2 and Figure 3, sewing machine includes presser foot component 2, and presser foot component 2 is moved with presser foot component 2 is able to drive
Dynamic presser feet arm 1 connects, and presser feet safety switch includes presser feet cam 3 and touch switch 4, and sewing machine case 10 is equipped with being capable of band
The presser feet spanner 5 that dynamic pressure foot cam 3 rotates, presser feet cam 3 are able to drive the movement of presser feet arm 1, and having on presser feet cam 3 can touch
The protrusion 31 of dynamic touch switch 4；Presser feet spanner 5 is arranged on sewing machine case 10, and one end is rotatably coupled to sewing machine machine
On shell 10, the other end is free end, when moving presser feet spanner 5, so that the free end of presser feet spanner 5 is rotated around connecting pin,
The presser feet cam 3 for being fixedly connected on 5 connecting pin of presser feet spanner can follow the swing of presser feet spanner 5 and rotate, certain in rotation
It after angle, is able to drive presser feet arm 1 and moves up, to realize the lifting of presser foot component 2, complete presser foot lifter movement；At the same time, it presses
Protrusion 31 on foot cam 3 is rotated to touch switch 4 just relatively, and protrusion 31, which squeezes, simultaneously touches control sewing machine clean boot
Touch switch 4, to guarantee to rotate the presser feet clean boot for making 2 position of presser foot component while rising, behaviour in presser feet cam 3
The operation for making personnel obtains safety guarantee.
As shown in Figure 1, the end of presser feet spanner 5 is connected with cam pin 9 and presser feet spanner 5 is able to drive cam pin 9 along certainly
Body axis rotation, presser feet cam 3 and the clamping of cam pin 9 connect；Presser feet spanner 5 is arranged outside sewing machine case 10, and presser feet is convex
The inside of sewing machine case 10, the safety for guaranteeing the convenience of operation in this way and using is arranged in wheel 3, and cam pin 9 passes through seam
It threads and machine casing 10 and is rotatably connected on sewing machine case 10, pull presser feet spanner 5, drive cam pin 9 to rotate, thus with dynamic pressure
Foot cam 3 rotates.
As depicted in figs. 1 and 2, presser foot component 2 includes presser feet bottom plate 21 and presser foot rack 22, and the upper surface of presser feet bottom plate 21 is opened
Equipped with semicircular through slot, the end of presser foot rack 22 has the flange of arc, which is fastened in through slot.
As shown in Figures 2 and 3, it is connected with the foot-pressing bar 6 being vertically arranged on presser feet arm 1, is connected on foot-pressing bar 6 along presser feet
The presser feet pin 8 of 6 radial direction of stick setting, presser feet pin 8 are connected with presser feet cam 3；The outer sliding sleeve of foot-pressing bar 6 is equipped with stick set 7,
Axial direction on the side wall of stick set 7 along stick set 7 opens up fluted 71, presser feet pin 8 pass through groove 71 and both ends respectively with foot-pressing bar 6 and
Presser feet cam 3 connects.Since compression bar stick is connect by presser feet pin 8 with presser feet cam 3, the rotation of presser feet cam 3 can pass through cam
Structure come drive foot-pressing bar 6 go up and down, thus drive presser feet arm 1 go up and down, realize presser foot component 2 lifting and reduction, pass through stick set 7
Position-limiting action can guarantee foot-pressing bar 6 presser feet cam 3 drive under steadily reliably slide up and down, thus guarantee presser foot lifter lift
What is risen is steady.
As shown in Figure 2 and Figure 4, the edge of presser feet cam 3 has the jacking portion 32 that can jack up presser feet pin 8, jacking portion
32 are arranged with 31 interval of protrusion, have the arc groove 32a to match with presser feet pin 8, the side of protrusion 31 and pressure in jacking portion 32
The edge-smoothing of foot cam 3 is connected, and the other side of protrusion 31 and the edge of presser feet cam 3 form card slot 33.Presser feet cam 3 rotates
So that jacking portion 32 jacks up presser feet pin 8, to realize the lifting of presser foot component 2, presser feet pin 8 is located at can in arc groove 32a
Stablize holding position；In 3 reciprocating rotation of presser feet cam, it is in when touch switch 4 is opposite with the edge of presser feet cam 3 and does not incude shape
State, when sliding into opposite with protrusion 31 with the side that presser feet cam 3 links up smoothly along protrusion 31, touch switch 4 is then raised
31 squeeze induction, and above structure ensure that protrusion 31 squeezes the steady of touch switch 4, the card that protrusion 31 is formed with presser feet cam 3
Slot 33 is for limiting presser feet pin 8, and when presser feet pin 8 is in the card slot 33, presser foot component 2 is in decline state.
As shown in figure 3, touch switch 4 is pressure sensor 41 in the present embodiment, there is pressure bullet on pressure sensor 41
Piece 41a, squeeze pressure elastic slice 41a after the protrusion 31 on presser feet cam 3 is rotated with presser feet cam 3, incudes to pressure sensor 41
The signal is simultaneously passed to controller by signal, to open safe mode by controller, avoids the error starting of sewing machine.
Specific embodiment described herein is only an example for the spirit of the invention.The neck of technology belonging to the present invention
The technical staff in domain can make various modifications or additions to the described embodiments or replace by a similar method
In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.
Claims (7)
1. a kind of presser feet safety switch of sewing machine, sewing machine includes presser foot component (2), presser foot component (2) and is able to drive institute
State presser foot component (2) mobile presser feet arm (1) connection, which is characterized in that the presser feet safety switch include presser feet cam (3) and
Touch switch (4), sewing machine case (10) is equipped with the presser feet spanner (5) for being able to drive presser feet cam (3) rotation, described
Presser feet cam (3) is able to drive presser feet arm (1) movement, and the touch can be touched by, which having on the presser feet cam (3), opens
Close the protrusion (31) of (4)；When the presser feet cam (3) drives the presser feet arm (1) to move up, on the presser feet cam (3)
Raised (31) can touch the touch switch (4).
2. the presser feet safety switch of sewing machine according to claim 1, which is characterized in that connected on the presser feet arm (1)
There is the foot-pressing bar (6) being vertically arranged, the presser feet pin along the setting of foot-pressing bar (6) radial direction is connected on the foot-pressing bar (6)
(8), the presser feet pin (8) is connected with the presser feet cam (3).
3. the presser feet safety switch of sewing machine according to claim 2, which is characterized in that the foot-pressing bar (6) is slided outside
It is arranged with stick set (7), the axial direction on the side wall of the stick set (7) along stick set (7) opens up fluted (71), the presser feet pin (8)
Across the groove (71) and both ends are connect with the foot-pressing bar (6) and the presser feet cam (3) respectively.
4. the presser feet safety switch of sewing machine according to claim 2 or 3, which is characterized in that the presser feet cam (3)
Edge has the jacking portion (32) that can jack up presser feet pin (8), and the jacking portion (32) and raised (31) interval are arranged,
There is the arc groove (32a) to match with the presser feet pin (8) on the jacking portion (32).
5. the presser feet safety switch of sewing machine according to claim 4, which is characterized in that it is described protrusion (31) side with
The edge-smoothing of the presser feet cam (3) is connected, and the other side of the protrusion (31) and the edge of the presser feet cam (3) are formed
Card slot (33).
6. the presser feet safety switch of sewing machine according to claim 1 or 2 or 3, which is characterized in that the presser feet spanner
(5) end is connected with cam pin (9) and the presser feet spanner (5) is able to drive the cam pin (9) along own axis,
The presser feet cam (3) and the cam pin (9) clamping connect.
7. the presser feet safety switch of sewing machine according to claim 1 or 2 or 3, which is characterized in that the touch switch
It (4) is pressure sensor (41) that there is pressure elastic slice (41a) on the pressure sensor (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510640104.3A CN105088549B (en) | 2015-09-30 | 2015-09-30 | A kind of presser feet safety switch of sewing machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510640104.3A CN105088549B (en) | 2015-09-30 | 2015-09-30 | A kind of presser feet safety switch of sewing machine |
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| Publication Number | Publication Date |
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| CN105088549A CN105088549A (en) | 2015-11-25 |
| CN105088549B true CN105088549B (en) | 2019-03-01 |
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| CN201510640104.3A Active CN105088549B (en) | 2015-09-30 | 2015-09-30 | A kind of presser feet safety switch of sewing machine |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105386247A (en) * | 2015-12-24 | 2016-03-09 | 杰克缝纫机股份有限公司 | Safety detecting device for presser foot arm of sewing machine and sewing machine |
| CN105755695B (en) * | 2016-05-19 | 2020-02-14 | 浙江众邦机电科技有限公司 | Non-contact sewing machine function button and sewing machine |
| CN211620806U (en) * | 2019-11-29 | 2020-10-02 | 苏州市青田企业发展有限公司 | Presser foot breast board |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5092257A (en) * | 1989-10-19 | 1992-03-03 | Brother Kogyo Kabushiki Kaisha | Automatic threading apparatus on a sewing machine |
| CN1802464A (en) * | 2003-05-21 | 2006-07-12 | L&P产权管理公司 | Biasing mechanism for sewing machine presser foot |
| CN201738120U (en) * | 2009-05-22 | 2011-02-09 | 上海富山精密机械科技有限公司 | Industrial overlock sewing machine presser shift safety switch |
| CN203065789U (en) * | 2013-02-07 | 2013-07-17 | 新杰克缝纫机股份有限公司 | Safe switching structure for presser foot of overedger |
| CN203200497U (en) * | 2013-04-19 | 2013-09-18 | 新杰克缝纫机股份有限公司 | Presser foot safety switch structure of automatic sewing machine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04156882A (en) * | 1990-10-18 | 1992-05-29 | Brother Ind Ltd | Fabric feed device for sewing machine |
-
2015
- 2015-09-30 CN CN201510640104.3A patent/CN105088549B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5092257A (en) * | 1989-10-19 | 1992-03-03 | Brother Kogyo Kabushiki Kaisha | Automatic threading apparatus on a sewing machine |
| CN1802464A (en) * | 2003-05-21 | 2006-07-12 | L&P产权管理公司 | Biasing mechanism for sewing machine presser foot |
| CN201738120U (en) * | 2009-05-22 | 2011-02-09 | 上海富山精密机械科技有限公司 | Industrial overlock sewing machine presser shift safety switch |
| CN203065789U (en) * | 2013-02-07 | 2013-07-17 | 新杰克缝纫机股份有限公司 | Safe switching structure for presser foot of overedger |
| CN203200497U (en) * | 2013-04-19 | 2013-09-18 | 新杰克缝纫机股份有限公司 | Presser foot safety switch structure of automatic sewing machine |
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| CN105088549A (en) | 2015-11-25 |
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Address after: 318014 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. |