CN2895474Y - Sewing-machine automatic needle-foot-lifting structure - Google Patents
Sewing-machine automatic needle-foot-lifting structure Download PDFInfo
- Publication number
- CN2895474Y CN2895474Y CN 200620040286 CN200620040286U CN2895474Y CN 2895474 Y CN2895474 Y CN 2895474Y CN 200620040286 CN200620040286 CN 200620040286 CN 200620040286 U CN200620040286 U CN 200620040286U CN 2895474 Y CN2895474 Y CN 2895474Y
- Authority
- CN
- China
- Prior art keywords
- presser foot
- connecting rod
- foot lifter
- sewing machines
- sewing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000009958 sewing Methods 0.000 claims abstract description 43
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 30
- 229910052742 iron Inorganic materials 0.000 claims abstract description 16
- 238000003801 milling Methods 0.000 claims description 6
- 239000011148 porous material Substances 0.000 claims description 3
- 230000037237 body shape Effects 0.000 claims description 2
- 150000002505 iron Chemical class 0.000 claims description 2
- 230000035515 penetration Effects 0.000 claims description 2
- 230000007246 mechanism Effects 0.000 abstract description 4
- 229910000831 Steel Inorganic materials 0.000 abstract 1
- 230000000903 blocking effect Effects 0.000 abstract 1
- 239000010959 steel Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000004590 computer program Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 238000012857 repacking Methods 0.000 description 2
- 235000014121 butter Nutrition 0.000 description 1
- 235000019994 cava Nutrition 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Images
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- Sewing Machines And Sewing (AREA)
Abstract
The utility model relates to a structure for lifting and pressing foot automatically, which is used on a sewing machine. An electromagnetic drive unit is arranged in the structure. The rotor shaft of the unit is connected with a cam and a linkage mechanism which are provided inside the sewing machine. The automatic lifting of the raising and pressing foot is controlled electrically. Wherein the electromagnetic driving unit comprises an iron case in which a coil is provided and fixed through pressing at the bottom of the casing. A lower ring is positioned for blocking at the bottom end of the lower casing. A cover, arranged on the bottom ring, is fixed on the positioning bolt at the lower casing. A rotor shaft passes through the iron casing and is supported and rotates with the help of steel balls arranged between the ring plate of the shaft seat and the side plate of the iron case. The end is clipped and fixed through a C ring so that the rotor shaft is integrated with the iron casing. A spring is put inside in order that the rotor shaft rotates to and fro.
Description
Technical field
The utility model is about the design of the automatic presser foot lifter structure of a kind of Sewing machines, especially refer to a kind of with electromagnetic driver cooperation cam and linkage, and, drive presser foot lifter from moving the action of lifting via back and forth rotation of computer control, make that sewing work is more smooth and easy to be carried out.
Background technology
Press, presser foot lifter is in order to cloth is pushed down in Sewing machines, the sewing work of general Sewing machines commonly used, when and then next workpiece is desired sewing and carried out after a quick sewing of workpiece is finished, need manually to dial the thread driving lever on pusher side limit of joint-cutting, make the cam of driving lever end rotate an angle, and then drive a linkage and move up, cause presser foot lifter upwards to promote, make the connection that only has line segment between workpiece and the workpiece, and can not produce the situation of suture twisted wire.But traditional sewing machine person changes the operating type that changes the presser foot lifter height by manually dialling, cause the interruption of sewing operation because of manual effect, the shortcoming that production efficiency reduces certainly will appear, promote efficient so there is the dealer to design for asking, utilize computer program to be controlled in and start calutron and the presser foot lifter that raise automatically down opportune moment through interlinked mechanism and electromagnetic actuator device.
Known relevant design of past, as No. 223871 " improvement of coil of Sewing machines presser foot lifter " a case of China's patent announcement, the design focal point of this case comprises and is provided with a coil body, can have the flexible rectilinear motion effect of jumper bar, make to be linked to and make in good time raising or decline function on the Sewing machines presser foot lifter associated mechanisms.
Shown electromagnetic valve is then for being installed in the Sewing machines rear end, for being away from presser foot lifter one section long distance is arranged, therefore it is provided with microscler connecting rod in Sewing machines inside, and guiding is linked on the inside body of rod of presser foot lifter indirectly, and the control presser foot lifter rises or descends during start.Its shortcoming is to be arranged at far-end because of automaton, therefore the more required manufacturing cost of intensity, assembleability precision, spare part of connecting rod is higher on the Designing Linkages, error amount promptly needs adjustment after being easy to use the short period, and the disappearance in many uses will be derived after bringing into use successively.
And the presser foot lifter of the existing manual pattern of tradition raises and switches the driving lever design, and making changer lever is the presser foot lifter upper end, rear end that is installed in Sewing machines, then goes to stir with finger after sewing work comes to an end, and reaches the lifting action of presser foot lifter.Therefore as using existing structure commonly used, its repacking is become automatically controlled automatic mode, then can be the presser foot lifter manual mode Sewing machines that has dispatched from the factory and reequip upgrading, the prouctiveness of whole factory is improved.
Summary of the invention
Main purpose of the present utility model is to provide the automatic presser foot lifter of a kind of Sewing machines structure, cooperates cam and linkage by an electromagnetic driver, makes presser foot lifter produce the action of lifting automatically in automatically controlled mode, makes that sewing work is more smooth and easy to be carried out.
Another purpose of the present utility model is to provide a kind of Sewing machines automatic presser foot lifter structure, and is succinct because of the connecting rod structure of electromagnetic driver institute combination, has the effect that is easy to manufacture and reduce manufacturing cost.
Another purpose of the present utility model is to provide a kind of Sewing machines automatic presser foot lifter structure, can make existing presser foot lifter manual mode structure, and its repacking is become automatically controlled automatic mode, and the prouctiveness of whole factory is improved.
In order to achieve the above object, the automatic presser foot lifter structure of Sewing machines that the utility model is set, being incorporated into inner set cam and the linkage of Sewing machines by an electromagnetic driver is formed, and this electromagnetic driver system comprises: an iron pipe shell, its inside has been installed with a coil, and support urgent fixing with lower cover in the bottom, again in the axis hole liner of lower cover establish the thin type bearing make rotating shaft penetrate the thin type bearing and prevent with the axle excessive friction, one base ring block is in the lower cover bottom, and borehole jack set on it is fixing on the positioning screw of lower cover, one rotating shaft penetrates among the iron pipe shell, and be arranged with between the ball groove of many places to serve as a contrast in set many places recessed channel of axle bed annular plate body and iron pipe shell side listrium body and hold and rotate with ball, in rotating shaft do not hold then be provided with a milling flat and the ring chase, being fastened on ring by C shape latch closure will make axle bed and shell integrally combine behind the chase, be inserted in again on the milling flat that a Spring Card is fixed in rotating shaft, and accept computer program and control, make the rotating shaft fast reaction by this and rotate, and then drive link mechanism moves up, make presser foot lifter reach the effect of accurate automatic lifting, and each spare part is short and small, simplify that manufacturing cost is reduced, easier in the maintenance simultaneously.
Description of drawings
Fig. 1 is the utility model electromagnetic actuator device structure decomposition map.
Fig. 2 is the upright outside drawing of the utility model electromagnetic actuator device group.
Fig. 3 is the utility model electromagnetic actuator device generalized section.
Fig. 4 installs the demonstration illustration for the utility model.
Fig. 5 is this installation lateral side view.
Fig. 6 is the utility model driving condition schematic diagram.
The specific embodiment
Please join Fig. 1-shown in Figure 3, the automatic presser foot lifter structure of the utility model Sewing machines, be to be provided with an electromagnetic driver 10, its rotating shaft is communicated in Sewing machines inner set cam and linkage, and wherein this electromagnetic driver 10 is made of an iron pipe shell 11, coil 12, lower cover 13, base ring 14, C shape latch closure 15, spring 16, axle bed 17, rotating shaft 18 and most ball 19.
This iron pipe shell 11 is provided with the space to be held coil 12 and inserts in inside, iron pipe shell 11 caves on a distolateral listrium body and is provided with many places ball groove 21, after in each ball groove 21, being coated with full butter ball 19 is loaded wherein, and then rotating shaft 18 is penetrated among the iron pipe shell axle bed 17, and make that set many places recessed channel 22 is sheathed on respectively on each ball 19 on the axle bed 17 annular plate bodys, reach restriction ball 19 and between ball groove 21 and recessed channel 22, roll.And coil 12 is inserted in and is contained within the shell 11 by rotating shaft 18 traversing through end, support urgent in coil 12 bottoms with lower cover 13, lining is established thin type bearing 24 and is made rotating shaft 18 penetrate thin type bearing 24 and prevent and axis hole 23 excessive frictions within the axis hole 23 of lower cover 13 again, with base ring 14 blocks in lower cover 13 bottoms, make positioning screw 25 on the lower cover 13 penetrate hole 26 on the base ring 14, base ring 14 medium pores are provided with simultaneously to the baffle plate 27 that extends out out toroidal shape, rotating shaft 18 ends then are provided with a milling flat 28 and ring chase 29, therefore after C shape latch closure 15 being fastened on ring chase 29 lower cover 13 will be combined with shell 11 and axle bed 17 one, spring 16 is placed on the milling flat 28 of rotating shaft 18 and between the baffle plate 27 of toroidal shape, entire combination becomes energising back movable core rotating shaft 18 can do about 25 left.The rotation of angle.
Please join Fig. 4, shown in Figure 5, be to utilize the positioning screw 25 of two protrusions to penetrate the dorsal part fixing hole 31 of Sewing needles headstock 30 electromagnetic driver 10, utilization ends loose nut, and that the screw rod of penetration end is screwed togather the back is fixing, again with rotating shaft 18 ends of electromagnetic driver 10 in conjunction with a cam 32, and the linkage of arranging in pairs or groups is to produce the action of mutual interlock, and the first connecting rod 33 one ends of this linkage abut in cam 32 1 sides, first connecting rod 33 stage casings are fixed on the Sewing needles headstock 30 with pivot 41 pivots, first connecting rod 33 bottoms then are articulated in second connecting rod 34, second connecting rod 34 ends then extend and are a U-shaped and collude the body shape, and collude on presser foot lifter axle fixed block 35 plate bodys, form a simple linkage, be connected on the Height Adjustment axle 36 of presser foot lifter 40 in axle fixed block 35 tops on the presser foot lifter, be provided with a rectangular resetting spring 37, screw togather one and adjust ring 38 in adjusting axle 36 tops, can determine that after adjusting ring 38 spiral lifting height and position adjustment bottom presser foot lifter 40 pushes down the intensity of cloth cover.
Please join Fig. 5, shown in Figure 6, and the electromagnetic driver of finishing when device 10, can be when sewing reaches certain phase by the automatic control of computer program, electrical autocontrol and make rotating shaft 18 produce the certain angles rotation, the cam 32 that sees through rotating shaft 18 rotations and one is linked turns left, drive first connecting rod 33 in succession and produce rotation, first connecting rod 33 stage casings are for to be fixed on the Sewing needles headstock 30 with pivot 41 pivots, therefore after first connecting rod 33 is by cam 32 conflicts, will make its end liter of tilting upward, and the end of first connecting rod 33 closes in second connecting rod 34 tops with bearing pin 42 pivots, therefore under the interlock effect just indirectly pull-up second connecting rod 34 to top offset, and therefore second connecting rod 34 bottom hooks reach the effect that rapid reaction is risen presser foot lifter 40 in the axle fixed block of adjusting on the axle 35 36.
In sum, the utility model is connected in Sewing machines inner set cam and simple and easy linkage with an electromagnetic actuator device, passes on fast by automatically controlled mode, and Sewing machines is lifted pressed the action that accurately produces automatic lifting, really be the new design of a practicality.
Only above-described, only be preferred embodiment of the present utility model, when not limiting the scope that the utility model is implemented with this; So all simple equivalent of being done according to the utility model claim and patent specification content change and modify, all should still belong in the scope that the utility model patent contains.
Claims (5)
1. the automatic presser foot lifter of Sewing machines is constructed, comprise an electromagnetic driver and linkage, it is characterized in that: electromagnetic driver is arranged at the dorsal part of Sewing needles headstock and is positioned at the presser foot lifter upper end, make the rotating shaft end of electromagnetic driver be incorporated into the inner set cam of Sewing machines, one linkage is fixed in Sewing machines inside and abuts in cam one side, touch by first connecting rod after making the cam rotation, make the lifting of second connecting rod bottom indirectly, and axle fixed block plate body on presser foot lifter is colluded in the second connecting rod bottom.
2. the automatic presser foot lifter structure of Sewing machines as claimed in claim 1, it is characterized in that: this linkage is provided with first connecting rod and second connecting rod, the first connecting rod stage casing is fixed on the Sewing needles headstock with the pivot pivot, the first connecting rod bottom then is articulated in second connecting rod, and the second connecting rod end then extends and is a U-shaped and colludes the body shape.
3. the automatic presser foot lifter structure of Sewing machines as claimed in claim 1 is characterized in that: fixed block is clamped on to be adjusted on the axle, is provided with presser foot lifter in adjusting the axle bottom.
4. the automatic presser foot lifter structure of Sewing machines as claimed in claim 1, it is characterized in that: described electromagnetic driver structure is provided with an iron pipe shell, a coil, a lower cover, a base ring and an axle bed, this iron pipe shell is provided with the space to be held coil and inserts in inside, depression is provided with many places ball groove on a distolateral listrium body, in each ball groove ball is loaded wherein; This coil is loaded in the iron pipe enclosure; This lower cover, central authorities are provided with axis hole, can support and place the iron pipe outer casing bottom under the pressure of the coil bottom, and a thin type bearing is embedded in the axis hole, covers down to be provided with positioning screw and can to penetrate hole on the base ring; This base ring is equipped with several holes and medium pore, be provided with to the baffle plate that extends out out toroidal shape in medium pore, with the base ring block in the lower cover bottom; This axle bed, be provided with the rotating shaft of shaft end tool milling flat and ring groove, set many places recessed channel on axle bed annular plate body, rotating shaft is penetrated in the iron pipe shell, make the many places recessed channel be sheathed on respectively on each ball with the restriction ball in the ball groove in and recessed channel between roll, and pass coil, lower cover, thin type bearing, base ring, a C shape latch closure button is terminated in rotating shaft end-rings chase, and a spring is placed on the milling flat of rotating shaft and between the baffle plate of toroidal shape.
5. the automatic presser foot lifter of Sewing machines as claimed in claim 1 structure is characterized in that: this electromagnetic driver utilizes the positioning screw of two protrusions to penetrate the side fixing hole of Sewing needles headstock, utilizes to end loose nut that the screw rod of penetration end is screwed togather the back is fixing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620040286 CN2895474Y (en) | 2006-03-17 | 2006-03-17 | Sewing-machine automatic needle-foot-lifting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620040286 CN2895474Y (en) | 2006-03-17 | 2006-03-17 | Sewing-machine automatic needle-foot-lifting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2895474Y true CN2895474Y (en) | 2007-05-02 |
Family
ID=38065054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620040286 Expired - Fee Related CN2895474Y (en) | 2006-03-17 | 2006-03-17 | Sewing-machine automatic needle-foot-lifting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2895474Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103668800A (en) * | 2012-09-06 | 2014-03-26 | 台州力灿缝纫设备科技有限公司 | Sewing machine |
-
2006
- 2006-03-17 CN CN 200620040286 patent/CN2895474Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103668800A (en) * | 2012-09-06 | 2014-03-26 | 台州力灿缝纫设备科技有限公司 | Sewing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: YOU YUEE; PATENTEE Free format text: FORMER OWNER: DU MINGDE Effective date: 20080711 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20080711 Address after: No. two, 308 section, eight Li Xiang, Taipei County, Taiwan, Zhongshan Road: Co-patentee after: Du Yusheng Patentee after: A moon in the moon Co-patentee after: Du Zhengyue Address before: Eight Li County, Taipei County, Zhongshan Road Province, No. 113, No. 22, Taiwan: Patentee before: Du Mingde |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070502 Termination date: 20100317 |