CN204125707U - Sewing-machine foot hoisting mechanism - Google Patents
Sewing-machine foot hoisting mechanism Download PDFInfo
- Publication number
- CN204125707U CN204125707U CN201420440555.3U CN201420440555U CN204125707U CN 204125707 U CN204125707 U CN 204125707U CN 201420440555 U CN201420440555 U CN 201420440555U CN 204125707 U CN204125707 U CN 204125707U
- Authority
- CN
- China
- Prior art keywords
- pin
- hole
- lever
- connecting rod
- linear actuator
- 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
Landscapes
- Sewing Machines And Sewing (AREA)
Abstract
The utility model relates to a kind of sewing-machine foot hoisting mechanism, comprise casing, linear actuator, pull bar and front lever, front lever is provided with three pin-and-holes, and the first pin-and-hole is articulated on casing by bearing pin, second pin-and-hole and presser feet lifter plate are hinged, and front end and the 3rd pin-and-hole of pull bar are hinged; Cavity is provided with on rear side of described casing, in cavity, linear actuator is installed, described linear actuator includes longitudinally reciprocating piston rod, rear lever and connecting rod is also provided with between the rear end of pull bar and piston rod, the utility model is coordinated by arcuate socket and foot-operated connecting rod dexterously and realizes manually with being automatically separated, and does not interfere with each other during both actions; The utility model specific design is ingenious, the feature of compact conformation, good reliability.
Description
Technical field
The utility model relates to sewing machine technique, specifically a kind of sewing-machine foot hoisting mechanism.
Background technology
Automatic needle-foot-lifting mechanism is all have employed in industrial sewing machine, to alleviate the labour intensity of operating personnel, raise labour efficiency, existing automatic needle-foot-lifting mechanism is generally driven by electromagnet, if Chinese patent notification number is that CN203159869U discloses a kind of built-in automatic needle-foot-lifting mechanism for Sewing machines, comprise with lower component: casing, described casing comprises a uprights, is provided with a cavity in described uprights; Linear actuator is fixedly mounted in described cavity, described linear actuator comprises one can the draw bar of straight reciprocating motion, after having one, the rear end of lever is connected with the end of draw bar, the front end of rear lever comprises two pin-and-holes, wherein pin-and-hole is rotatably connected on casing by bearing pin before first, before rear lever rear end to first, the distance of pin-and-hole is greater than the distance of pin-and-hole before pin-and-hole to first before second, front lever comprises three pin-and-holes, and the first pin-and-hole is rotatably connected on casing by bearing pin; Second pin-and-hole and presser feet lifter plate are hinged; Before having second of the rear end of a pull bar and rear lever, pin-and-hole is hinged, and the front end of pull bar and the 3rd pin-and-hole of front lever are hinged; Presser bar lifting mechanisms is arranged enclosure interior by this mechanism, is amplified the active force of linear actuator by lever, and plays commutation effect, and make structure compacter, structure is more reasonable.
But this automatic presser bar lifting mechanisms is once break down, and Sewing machines just cannot normally work, and makes troubles to production, its reliability need to improve.
Utility model content
The purpose of this utility model is to provide a kind of sewing-machine foot hoisting mechanism, linear actuator is controlled and manually rides control to combine, both can be controlled automatically to control by linear actuator, also artificial foot-operated control can be adopted, and both do not interfere with each other, specific design is ingenious, the feature of compact conformation, good reliability.
For achieving the above object by the following technical solutions:
A kind of sewing-machine foot hoisting mechanism, comprise casing, linear actuator, pull bar and front lever, front lever is provided with three pin-and-holes, and the first pin-and-hole is articulated on casing by bearing pin, second pin-and-hole and presser feet lifter plate are hinged, and front end and the 3rd pin-and-hole of pull bar are hinged; Cavity is provided with on rear side of described casing, in cavity, linear actuator is installed, described linear actuator includes longitudinally reciprocating piston rod, it is characterized in that: between the rear end of pull bar and piston rod, be also provided with rear lever and connecting rod, rear lever is L shape, after L shape, the both ends of lever and middle turning are equipped with pin-and-hole, wherein pin-and-hole and back end of tie rod hinged; Described connecting rod rear and front end is also provided with pin-and-hole, rod rear end pin-and-hole and piston rod hinged, after connecting rod front end pin-and-hole and L shape, in the middle of lever, pin-and-hole is articulated on casing by bearing pin, in the middle part of connecting rod, after corresponding L shape, arcuate socket is opened in lever rear end pin-and-hole position, after described L shape, the upper end of lever rear end pin-and-hole and foot-operated connecting rod is hinged, and the upper end bending of foot-operated connecting rod is connected with an anticreep turn-knob through arcuate socket.
The utility model is by arranging lever after connecting rod and L shape between pull bar and the piston rod of linear actuator, and lever is also hinged with pedal connecting rod after L shape, moved up and down by pedal connecting rod and can realize the lifting of presser feet, linear actuator is pumped by piston rod in addition, drivening rod rotates, and connecting rod rotates by lever after anticreep knob and then drive L shape the elevating movement realizing presser feet; Artificial footstep mechanism and linear actuator coordinate realization to be separated by arcuate socket and foot-operated connecting rod dexterously, do not interfere with each other during both actions; Automatic lifting presser feet can be realized when linear actuator can normally work, and artificial foot-operated mode can be adopted to control the lifting of presser feet when linear actuator is out of order or Sewing machines control program makes mistake, improve the reliability of Sewing machines work, the utility model specific design be ingenious, the feature of compact conformation, good reliability.
Accompanying drawing explanation
Fig. 1 is the structural representation that the utility model installs casing internal;
Fig. 2 is the structural representation of the utility model original state;
Fig. 3 is the structural representation at the utility model original state back side;
Fig. 4 is that the utility model drives the structural representation of pressure foot lifting by linear actuator;
Fig. 5 is that the utility model drives the structural representation of pressure foot lifting by footstep mechanism.
Detailed description of the invention
As Figure 1-3, a kind of sewing-machine foot hoisting mechanism, comprise casing 1, linear actuator 2, pull bar 3 and front lever 4, front lever 4 is provided with three pin-and-holes, first pin-and-hole 41 is articulated on casing 1 by bearing pin, second pin-and-hole 42 is hinged with presser feet lifter plate 5, and presser feet 6 is fixed on presser feet lifter plate 5, and front end and the 3rd pin-and-hole 43 of pull bar 3 are hinged; Cavity 11 is provided with on rear side of described casing 1, linear actuator 2 is installed in cavity 11, described linear actuator 2 includes longitudinally reciprocating piston rod 21, rear lever 7 and connecting rod 8 is also provided with between the rear end of pull bar 3 and piston rod 21, rear lever 7 is L shape, after L shape, the both ends of lever 7 and middle turning are equipped with pin-and-hole, wherein pin-and-hole and pull bar 3 rear end hinged; Described connecting rod 8 rear and front end is also provided with pin-and-hole, connecting rod 8 rear end pin-and-hole and piston rod 21 hinged, after connecting rod front end pin-and-hole and L shape, the middle pin-and-hole of lever 7 is articulated on casing 1 by bearing pin 10, in the middle part of connecting rod, after corresponding L shape, arcuate socket 81 is opened in lever rear end pin-and-hole position, after described L shape, the upper end of lever 7 rear end pin-and-hole and foot-operated connecting rod 9 is hinged, and the upper end bending of foot-operated connecting rod 9 is connected with an anticreep turn-knob 91 through arcuate socket.
As shown in Figure 4, when linear actuator 2 piston rod 21 moves upward, after connecting rod 8 rotates up and drives L shape by foot-operated connecting rod 9, lever 7 rotates, pull pull bar 3 that front lever 4 is rotated by lever 7 after L shape and drive pressure foot lifting, linear actuator 2 discharges upwards after active force, presser feet automatically resets under the action of the spring, and after driving linear actuator 2, connecting rod 8, L shape, lever 7, pull bar 3 and front lever 4 all automatically reset simultaneously.
As shown in Figure 5, when workman tramples footstep mechanism, foot-operated connecting rod 9 can to upper top, and after foot-operated connecting rod 9 Direct driver L shape, lever 7 rotates and by pull bar 3 and front lever 4, presser feet upwards promoted; After removing the pressure trampled, presser feet and other each parts automatically reset.
After the utility model adopts connecting rod 8 and L shape, lever 7 cooperatively interacts, make the utility model can be applicable to electronic or pneumatic linear actuator and artificial footstep mechanism simultaneously, artificial footstep mechanism and linear actuator coordinate realization to be separated by arcuate socket and foot-operated connecting rod dexterously, thus improving the reliability of Sewing machines work, the utility model specific design is ingenious, the feature of compact conformation, good reliability.
Claims (1)
1. a sewing-machine foot hoisting mechanism, comprise casing, linear actuator, pull bar and front lever, front lever is provided with three pin-and-holes, and the first pin-and-hole is articulated on casing by bearing pin, second pin-and-hole and presser feet lifter plate are hinged, and front end and the 3rd pin-and-hole of pull bar are hinged; Cavity is provided with on rear side of described casing, in cavity, linear actuator is installed, described linear actuator includes longitudinally reciprocating piston rod, it is characterized in that: between the rear end of pull bar and piston rod, be also provided with rear lever and connecting rod, rear lever is L shape, after L shape, the both ends of lever and middle turning are equipped with pin-and-hole, wherein pin-and-hole and back end of tie rod hinged; Described connecting rod rear and front end is also provided with pin-and-hole, rod rear end pin-and-hole and piston rod hinged, after connecting rod front end pin-and-hole and L shape, in the middle of lever, pin-and-hole is articulated on casing by bearing pin, in the middle part of connecting rod, after corresponding L shape, arcuate socket is opened in lever rear end pin-and-hole position, after described L shape, the upper end of lever rear end pin-and-hole and foot-operated connecting rod is hinged, and the upper end bending of foot-operated connecting rod is connected with an anticreep turn-knob through arcuate socket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420440555.3U CN204125707U (en) | 2014-08-07 | 2014-08-07 | Sewing-machine foot hoisting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420440555.3U CN204125707U (en) | 2014-08-07 | 2014-08-07 | Sewing-machine foot hoisting mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204125707U true CN204125707U (en) | 2015-01-28 |
Family
ID=52382078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420440555.3U Expired - Fee Related CN204125707U (en) | 2014-08-07 | 2014-08-07 | Sewing-machine foot hoisting mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204125707U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104195753A (en) * | 2014-08-07 | 2014-12-10 | 浙江川田缝纫机有限公司 | Presser foot lifting mechanism of sewing machine |
-
2014
- 2014-08-07 CN CN201420440555.3U patent/CN204125707U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104195753A (en) * | 2014-08-07 | 2014-12-10 | 浙江川田缝纫机有限公司 | Presser foot lifting mechanism of sewing machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204174394U (en) | A kind of automatic needle-foot-lifting mechanism of Sewing machines | |
| CN204211942U (en) | A kind of lifting device of sewing machine cloth-dragging wheel | |
| CN103215758B (en) | Built-in type automatic pressure foot lifting mechanism of sewing machine | |
| CN206015271U (en) | Shank separating mechanism | |
| CN204125707U (en) | Sewing-machine foot hoisting mechanism | |
| CN203049213U (en) | Knee-controlled pressure foot lifting device | |
| CN204530139U (en) | Sewing-machine foot hoisting mechanism | |
| CN210657425U (en) | Overedger | |
| CN203159869U (en) | Built-in automatic presser foot lifting mechanism of sewing machine | |
| CN203159870U (en) | Material pressing structure for sewing machine | |
| CN205869126U (en) | Bending structures of elevator door plant | |
| CN204491176U (en) | A kind of presser foot lifting device of Sewing machines | |
| CN105525449B (en) | The head of sewing machine of built-in foot lifting mechanism | |
| CN104195753A (en) | Presser foot lifting mechanism of sewing machine | |
| CN2832861Y (en) | Automatic presser foot lifter for double-needle sewing machine | |
| CN203683876U (en) | Driving structure of built-in presser foot lifting mechanism in sewing machine | |
| CN203420092U (en) | Automatic foot lifting and pressing mechanism of sewing machine | |
| CN204298596U (en) | The built-in automatic needle-foot-lifting mechanism of sewing machine | |
| CN202830441U (en) | Material-pressing device of closure machine | |
| CN205329302U (en) | Embedded sewing machine aircraft nose of lifting presser foot mechanism of utensil | |
| CN2762992Y (en) | Inner vibration type wire-drawing formation machine with collision-proof mechanism | |
| CN201395697Y (en) | Sewing machine with needle bar lifting mechanism | |
| CN2883433Y (en) | Doffer gear of sewing machine | |
| CN204039691U (en) | High speed sewing machine automatic needle-foot-lifting mechanism | |
| CN205775175U (en) | The automatic needle-foot-lifting device of sewing machine |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150128 Termination date: 20200807 |