CN204000195U - The electronic presser foot lifting device of Sewing machines - Google Patents
The electronic presser foot lifting device of Sewing machines Download PDFInfo
- Publication number
- CN204000195U CN204000195U CN201420341392.3U CN201420341392U CN204000195U CN 204000195 U CN204000195 U CN 204000195U CN 201420341392 U CN201420341392 U CN 201420341392U CN 204000195 U CN204000195 U CN 204000195U
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- China
- Prior art keywords
- presser foot
- cam
- foot lifter
- slide bar
- head
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Abstract
The utility model discloses a kind of electronic presser foot lifting device of Sewing machines, comprise head, fuselage, and be arranged on shank and the foot lifting mechanism on described head, foot lifting mechanism comprises presser foot lifter slide bar, is arranged on the presser foot lifter of this presser foot lifter slide bar lower end, is horizontally placed on the control motor and the cam briquetting that is fixedly arranged on presser foot lifter slide bar middle and lower part of head sidewall, the rotating shaft of controlling motor is provided with cam, on the presser foot lifter slide bar between cam briquetting and head top, is arranged with stage clip.The utility model utilizes the rotation of cam and the elastic force of stage clip directly to drive presser foot lifter to move up and down, shorten transmission distance, parts are omitted, can improve and control the stationarity of machine shaft and the reciprocating motion speed of presser foot lifter and the raising height of presser foot lifter, and do not need larger Motor torque, greatly reduce the control requirement to controlling motor, noise is little.
Description
Technical field
The utility model relates to a kind of motor driver of presser foot lifter of Sewing machines.
Background technology
The presser foot lifter action of traditional Sewing machines, employing be all that manpower drives, labour intensity is large, sewing efficiency is low.Someone utilized the adhesive of electromagnet and release to drive presser foot lifter to do upper and lower motion afterwards, had liberated manpower, had improved efficiency.But, although this Sewing machines by solenoid actuated presser foot lifter can alleviate workman labour intensity, increase work efficiency, but electromagnet noise is large, cost is higher, and the mechanical trip of presser foot lifter is unadjustable, the uncontrollable defect of the lifting of presser foot lifter and down position, electromagnet reliability is poor simultaneously, may affect the normal operation of Sewing machines.
The patent No. is that 201220187533.1 utility model discloses a kind of " industrial sewing machine presser foot lifter drive unit ", its preferred scheme (seeing 201220187533.1 accompanying drawing 3) is to adopt the motor 2 with controller 1, drive rod 401 by the reciprocally swinging that drives pendulum 406, finally drive presser foot lifter to move up and down by the chute of rod 401 other ends.This further improved structure, although driving, presser foot lifter controls flexibility and reliability, presser foot lifter stroke is adjustable, presser foot lifter lifting position controlled (seeing description [0011]), but, because its motor 2 is located on grease proofing of back shroud and back shroud, its machine shaft will be connected with foot lifting mechanism with grease proofing of back shroud through back shroud, its shaft extension is longer, the stationarity of machine shaft is reduced, vibrate larger, the length of rod 401 is apart from carry-over moment in addition, not only need larger Motor torque, also can affect the reciprocating speed of presser foot lifter, because the longer arm of force has larger motional inertia in the time of reciprocally swinging, be not suitable for high speed reciprocating motion, in addition, being slidably matched of the chute of its rod 401 other ends and pivot pin, wearing and tearing are very fast, if there is gap between chute and pivot pin, knocking noise between chute and pivot pin is very large.
Utility model content
The purpose of this utility model is to provide a kind of electronic presser foot lifting device of Sewing machines, it utilizes the rotation of cam and the elastic force of stage clip directly to drive presser foot lifter to move up and down, shorten transmission distance, parts are omitted, can improve and control the stationarity of machine shaft and the reciprocating motion speed of presser foot lifter and the raising height of presser foot lifter, and do not need larger Motor torque, and greatly reducing the control requirement to controlling motor, noise is little.
For achieving the above object, the utility model adopts following technical scheme:
A kind of electronic presser foot lifting device of Sewing machines, comprise head, fuselage, and be arranged on shank and the foot lifting mechanism on described head, described foot lifting mechanism comprises a presser foot lifter slide bar vertically arranging and is arranged on the presser foot lifter of this presser foot lifter slide bar lower end, described foot lifting mechanism also comprises: the control motor and the cam briquetting that is fixedly arranged on presser foot lifter slide bar middle and lower part that are horizontally placed on head sidewall, in the rotating shaft of described control motor, be provided with cam, on the presser foot lifter slide bar between described cam briquetting and head top, be arranged with stage clip.
Described control motor is servomotor.
The outline of described cam at least comprises one section of smallest circle segmental arc a, and cam rotation is extremely in the time of its smallest circle segmental arc a and the disengaging of cam briquetting, and described presser foot lifter is in limit inferior position.
A kind of electronic presser foot lifting device of Sewing machines, comprise head, fuselage, and be arranged on shank and the foot lifting mechanism on described head, described foot lifting mechanism comprises a presser foot lifter slide bar vertically arranging and is arranged on the presser foot lifter of this presser foot lifter slide bar lower end, described foot lifting mechanism also comprises: the control motor and the cam briquetting that is fixedly arranged on presser foot lifter slide bar middle and lower part that are horizontally placed on head sidewall, the rotating shaft of described control motor is connected with a planet gearbox drive, the output shaft of described epicyclic gearbox is provided with cam, on the presser foot lifter slide bar between described cam briquetting and head top, be arranged with stage clip.
Described control motor is servomotor.
The outline of described cam at least comprises one section of smallest circle segmental arc a, and cam rotation is extremely in the time of its smallest circle segmental arc a and the disengaging of cam briquetting, and described presser foot lifter is in limit inferior position.
Compared with prior art the beneficial effects of the utility model are: owing to adopting technique scheme, described control motor is horizontally placed on the sidewall of head, utilize the rotation of cam and the elastic force of stage clip directly to drive presser foot lifter to move up and down, this has just shortened transmission distance, omitted rod parts, the rotating shaft stationarity of not only controlling motor improves, and does not need larger Motor torque, do not need to overcome the reciprocating inertia of motor, improve the reciprocating motion speed of presser foot lifter; Especially, this structure also greatly reduces the control requirement to controlling motor, compared with existing control motor, control motor of the present utility model does not need reciprocating motion, cam continuous rotation just can allow presser foot lifter rest on any position by the variation of its outline curve, only needs to regulate the rotating speed of controlling motor to carry out the reciprocating speed of console presser feet; In addition, the transmission of the utility model cam and cam briquetting, even if there are wearing and tearing, can not produce impact noise yet, and noise is little.
Another kind of technical scheme of the present utility model, except having above-mentioned beneficial effect, owing to having set up described epicyclic gearbox, driving torque increases, and goes for the sewing of thicker material.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the zoomed-in view of Fig. 1 cam drive mechanism;
Fig. 3 is the structural representation of the another kind of form of the utility model.
Detailed description of the invention
As shown in Fig. 1 to 2, the electronic presser foot lifting device of a kind of Sewing machines of the utility model, comprise head 1, fuselage 2, and be arranged on shank 3 and the foot lifting mechanism on described head 1, described foot lifting mechanism comprises a presser foot lifter slide bar 4 vertically arranging, be arranged on the presser foot lifter 5 of these presser foot lifter slide bar 4 lower ends, be horizontally placed on the control motor 6 and the cam briquetting 401 that is fixedly arranged on presser foot lifter slide bar 4 middle and lower parts of head 1 sidewall, in the rotating shaft of described control motor 6, be provided with cam 7, on the presser foot lifter slide bar 4 between described cam briquetting 401 and head 1 top, be arranged with stage clip 402.As preferably, described control motor 6 is servomotor.The outline of described cam 7 can be according to the action request design of presser foot lifter, and it at least comprises one section of smallest circle segmental arc a, and cam 7 rotations are in the time that its smallest circle segmental arc a and cam briquetting 401 depart from, and described presser foot lifter 5 is in limit inferior position.
As shown in Figure 3, it is another kind of embodiment of the present utility model, the electronic presser foot lifting device of this Sewing machines comprises head 1, fuselage 2, and be arranged on shank 3 and the foot lifting mechanism on described head 1, described foot lifting mechanism comprises a presser foot lifter slide bar 4 vertically arranging, be arranged on the presser foot lifter 5 of these presser foot lifter slide bar 4 lower ends, be horizontally placed on the control motor 6 and the cam briquetting 401 that is fixedly arranged on presser foot lifter slide bar 4 middle and lower parts of head 1 sidewall, the rotating shaft of described control motor 6 and an epicyclic gearbox 8 are in transmission connection, the output shaft of described epicyclic gearbox 8 is provided with cam 7, on the presser foot lifter slide bar 4 between described cam briquetting 401 and head 1 top, be arranged with stage clip 402.As preferably, described control motor 6 is servomotor.The outline of described cam 7 can be according to the action request design of presser foot lifter, and it at least comprises one section of smallest circle segmental arc a, and cam 7 rotations are in the time that its smallest circle segmental arc a and cam briquetting 401 depart from, and described presser foot lifter 5 is in limit inferior position.
Claims (6)
1. the electronic presser foot lifting device of a Sewing machines, comprise head (1), fuselage (2), and be arranged on shank (3) and the foot lifting mechanism on described head (1), described foot lifting mechanism comprises a presser foot lifter slide bar (4) vertically arranging and is arranged on the presser foot lifter (5) of this presser foot lifter slide bar (4) lower end, it is characterized in that, described foot lifting mechanism also comprises: be horizontally placed on the control motor (6) of head (1) sidewall and be fixedly arranged on the cam briquetting (401) of presser foot lifter slide bar (4) middle and lower part, in the rotating shaft of described control motor (6), be provided with cam (7), on the presser foot lifter slide bar (4) between described cam briquetting (401) and head (1) top, be arranged with stage clip (402).
2. the electronic presser foot lifting device of Sewing machines according to claim 1, is characterized in that: described control motor (6) is servomotor.
3. the electronic presser foot lifting device of Sewing machines according to claim 1 and 2, it is characterized in that: the outline of described cam (7) at least comprises one section of smallest circle segmental arc a, cam (7) rotation is extremely in the time of its smallest circle segmental arc a and cam briquetting (401) disengaging, and described presser foot lifter (5) is in limit inferior position.
4. the electronic presser foot lifting device of a Sewing machines, comprise head (1), fuselage (2), and be arranged on shank (3) and the foot lifting mechanism on described head (1), described foot lifting mechanism comprises a presser foot lifter slide bar (4) vertically arranging and is arranged on the presser foot lifter (5) of this presser foot lifter slide bar (4) lower end, it is characterized in that, described foot lifting mechanism also comprises: be horizontally placed on the control motor (6) of head (1) sidewall and be fixedly arranged on the cam briquetting (401) of presser foot lifter slide bar (4) middle and lower part, the rotating shaft of described control motor (6) and an epicyclic gearbox (8) are in transmission connection, the output shaft of described epicyclic gearbox (8) is provided with cam (7), on the presser foot lifter slide bar (4) between described cam briquetting (401) and head (1) top, be arranged with stage clip (402).
5. the electronic presser foot lifting device of Sewing machines according to claim 4, is characterized in that: described control motor (6) is servomotor.
6. according to the electronic presser foot lifting device of the Sewing machines described in claim 4 or 5, it is characterized in that: the outline of described cam (7) at least comprises one section of smallest circle segmental arc a, cam (7) rotation is extremely in the time of its smallest circle segmental arc a and cam briquetting (401) disengaging, and described presser foot lifter (5) is in limit inferior position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420341392.3U CN204000195U (en) | 2014-06-25 | 2014-06-25 | The electronic presser foot lifting device of Sewing machines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420341392.3U CN204000195U (en) | 2014-06-25 | 2014-06-25 | The electronic presser foot lifting device of Sewing machines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204000195U true CN204000195U (en) | 2014-12-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420341392.3U Expired - Fee Related CN204000195U (en) | 2014-06-25 | 2014-06-25 | The electronic presser foot lifting device of Sewing machines |
Country Status (1)
| Country | Link |
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| CN (1) | CN204000195U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104562490A (en) * | 2015-02-03 | 2015-04-29 | 陈展新 | Needle bar protective mouth driving structure of towel embroiderer |
| CN109706632A (en) * | 2019-03-08 | 2019-05-03 | 杰克缝纫机股份有限公司 | A kind of control method of sewing-machine automatic needle-foot-lifting |
| CN110219101A (en) * | 2019-03-18 | 2019-09-10 | 浙江翔科缝纫机股份有限公司 | A kind of sewing machine and presser foot lifter thread releasing mechanism |
-
2014
- 2014-06-25 CN CN201420341392.3U patent/CN204000195U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104562490A (en) * | 2015-02-03 | 2015-04-29 | 陈展新 | Needle bar protective mouth driving structure of towel embroiderer |
| CN109706632A (en) * | 2019-03-08 | 2019-05-03 | 杰克缝纫机股份有限公司 | A kind of control method of sewing-machine automatic needle-foot-lifting |
| CN110219101A (en) * | 2019-03-18 | 2019-09-10 | 浙江翔科缝纫机股份有限公司 | A kind of sewing machine and presser foot lifter thread releasing mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141210 Termination date: 20170625 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |