CN201305746Y - Improved structure of sewing machine for trousers bottom curling - Google Patents
Improved structure of sewing machine for trousers bottom curling Download PDFInfo
- Publication number
- CN201305746Y CN201305746Y CNU2008202039190U CN200820203919U CN201305746Y CN 201305746 Y CN201305746 Y CN 201305746Y CN U2008202039190 U CNU2008202039190 U CN U2008202039190U CN 200820203919 U CN200820203919 U CN 200820203919U CN 201305746 Y CN201305746 Y CN 201305746Y
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- transmission shaft
- turnup
- pressing wheel
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Abstract
The utility model relates to the technical field of a sewing machine, in particular to an improved structure of a sewing machine for trousers bottom curling; the machine mainly comprises a transmission part, a speed change device, a thread trimming mechanism, a feeding pressing wheel lifting mechanism and a curling device; wherein the transmission part takes a direct drive servo motor as power source, and the servo motor is directly arranged on a machine body and connected with a handwheel by a shaft; the thread trimming mechanism comprises a fixed knife and a moving knife which is matched with the fixed knife for cutting, therefore automatic cutting is realized; a universal transmission shaft extends from a gear box is connected by a front and rear hinge of multisection of pins; and the feeding pressing wheel lifting mechanism is in linkage relation with the curling device by a linkage mechanism, therefore two-in-one control is achieved. As the machine does not need the belt for transmission, the fine particle dust caused by friction of the belt rotation is removed, the universal transmission shaft shows better long-time stabilization, stitch deformation and needle broken are not affected by deformation of the universal transmission shaft, and the linkage between the feeding pressing wheel lifting mechanism and the curling device improves the productivity.
Description
Technical field:
The utility model relates to the sewing machine technique field, refers in particular to a kind of turnup Sewing machines structural improvement.
Background technology:
There is following defective in traditional turnup Sewing machines: 1, starter motor is housed below board, motor need dispose belt pulley and belt comes transmission machinery, the motor power consumption is big, noise is big, and also needs when using to locate with the portable top of eedle that rises, and can take out cloth; 2, the power transmission shaft of Sewing machines outputting power is to rotate tugboat by steel wire rope, and when long-time use, the torsion that steel wire rope can be rotated causes automatic lengthening deformation, causes distortion of Sewing machines stitching and broken needle phenomenon; When 3, traditional turnup Sewing machines is adjusted pin yardstick cun, can change corresponding pin sign indicating number conversion gear after needing to adjust gear-box (gearbox) part assembly, maintenance is complicated, influences the working time; 4, traditional turnup Sewing machines has only single presser feet, and need turn right with the right side knee during folding hemmer promotes and could work, and the controller of startup is many, complex operation; 5, traditional turnup Sewing machines can not automatic shearing, needs manual operation, and efficient is low, trimming quality instability.
Summary of the invention:
The purpose of this utility model is to overcome the defective of prior art, provides a kind of turnup Sewing machines structural improvement, to improve the serviceability of Sewing machines.
For achieving the above object, the utility model adopts following technical scheme to realize:
Turnup Sewing machines structural improvement, this machine mainly includes running part, speed change gear, thread cutting mechanism, lifting and pressing mechanism and hemmer, running part be with the directly-drive servo motor as power source, this servomotor directly is installed on the body, with between the handwheel by the axle be connected; End parts is provided with a secondary chamber before the gearbox of speed change gear, and pin sign indicating number conversion gear then is installed in the secondary chamber, and secondary chamber front end face is hidden by a removable side cover; The drive shaft system of marching toward of being stretched out by gearbox is formed by hinge linking before and after the more piece pin, but the power transmission shaft periphery of marching toward is arranged with the outsourcing of elastic telescopic; The moving knife that thread cutting mechanism mainly includes roundlet mouth, needle plate, is fixed in the stationary knife on the roundlet mouth and can cooperates stationary knife to shear, moving knife drives through linkage, realizes shearing automatically; It between material feeding pressing wheel lifting and pressing mechanism and the hemmer interaction relation, realize by linkage, reach two-in-one control, wherein linkage comprises and lifts the composite-joint that the pin that bears down on one is lifted in the pin that bears down on one, pinch roller push rod and connection, lift the pin linkage controller that bears down on one, the lower end of pinch roller push rod connects composite-joint, and pinch roller push rod upper end interlock lifting and pressing mechanism, composite-joint is provided with a protruding pin, and protruding pin is drawn the power drive hemmer.
It is hinged that the power transmission shaft of marching toward cooperates flat slot interlocking back laterally to run through formation with bearing pin with flat protruding axle between the deutomerite pin before, and the flat direction difference of adjacent hinge position.
The outsourcing that is set in the power transmission shaft periphery of marching toward is rectangular compression bourdon tube.
Roundlet mouth periphery in thread cutting mechanism also is surrounded by stainless steel outer sleeve.
The utility model has following advantage by behind the structure-improved:
1, designed the directly-drive servo electric system, the directly-drive servo motor is installed in the body, do not need to use belt transmission, eliminate belt and rotated the particulate dust that brings after the friction, all can automatically eedle be promoted place, top when stopping in each switch power supply and the work, it is convenient, reliable to bring to the user, use the infra-red code location technology, make and stop pin and the trimming degree of accuracy reaches 100%, maximum speed can reach 5000 rev/mins, use the directly-drive servo motor brought safety, environmental protection, energy-conservation, noise is few, can save 30% electric weight.
2, the power transmission shaft of marching toward adopts before and after the more piece pin hinge to be connected to form, and more apparent permanent stabilization can be because of distortion of deformation effect stitching and broken needle phenomenon.
3, designed plain type and changed pin sign indicating number conversion gear, only need pull down the gearbox side cover during use, can realize that pin sign indicating number conversion gear changes, easy and simple to handle, save trouble, do not influence the shift in position of other gears in the case.
4, designed dise knife automatic shearing function, reached the saving of labor, save time, brought quick benefit to production; The stainless steel outer packed overcoat of roundlet mouth can solve the phenomenon that the sewing process has dust to be involved in, and can not allow the roundlet mouth easy to wear and prevent peeling paint, can not allow residual rusty stain pollutes above the cloth in the machine, plays practicality, effect attractive in appearance, efficient.
5, designed the interlock of material feeding pressing wheel lifting and pressing mechanism and hemmer, made two fusing of parts, design is light and handy practical, increases productivity fast.
Description of drawings:
Accompanying drawing 1 is the utility model structural representation;
Accompanying drawing 2 is the running part STRUCTURE DECOMPOSITION schematic diagram of the utility model;
Accompanying drawing 3 is the speed change gear STRUCTURE DECOMPOSITION schematic diagram of the utility model;
Accompanying drawing 4 is the thread cutting mechanism STRUCTURE DECOMPOSITION schematic diagram of the utility model;
Accompanying drawing 5 is the material feeding pressing wheel lifting and pressing mechanism and the hemmer linkage structure decomposing schematic representation of the utility model.
The specific embodiment:
Below in conjunction with accompanying drawing the utility model is further specified:
Consult shown in Figure 1, turnup Sewing machines described in the utility model, mainly include running part 10, speed change gear 20, thread cutting mechanism 30, material feeding pressing wheel lifting and pressing mechanism 40 and hemmer 50, this case also mainly is to improve at above-mentioned part, to overcome the defective of prior art.
Consult shown in Figure 2, in the utility model, running part 10 is as power source with the directly-drive servo motor, this servomotor 11 directly is installed on the body, be furnished with that motor cover 12 is auxiliary installs, be connected by axle between servomotor 11 and the handwheel 13, promptly the power of servomotor 11 is exported by through-drive to handwheel 13, do not need to use belt transmission, eliminated belt and rotated the particulate dust that brings after the friction.This directly-drive servo system can reach all can promote eedle place, top automatically when stopping in each switch power supply and the work, reduce manual needle, it is convenient, reliable to bring to the user, and use infra-red code location technology, make and stop pin and the trimming degree of accuracy reaches 100%, maximum speed can reach 5000 rev/mins, use the directly-drive servo motor brought safety, environmental protection, energy-conservation, noise is few, can save 30% electric weight.
Consult shown in Figure 3ly, end parts is provided with a secondary chamber 211 before the gearbox of speed change gear 20 21, and pin sign indicating number conversion gear 22 then is installed in the secondary chamber 211, separate arrangement with other change-speed gearing, and secondary chamber 211 front end faces are by removable side cover 212 coverings.When this structure was changed pin sign indicating number conversion gear 22 in reality, only need open side cover 212 got final product disassembling, assembling and replacing, does not need to startle other change-speed gearing.Shown in the figure, pin sign indicating number conversion gear 22 is installed on the corresponding axle head, and dismounting is quite convenient.Secondary chamber 211 is similar to side indent certain distance before the gearbox 21 is formed, and 22 of pin sign indicating number conversion gears are mixed side cover 212 then and hidden against the lateral surface arrangement, and side cover 212 adopts lock screw mode to fix, and is beneficial to dismounting.
Shown in Figure 3, the power transmission shaft 23 of marching toward that is stretched out by gearbox is to be connected by more piece pin 231 front and back hinges to form, but the power transmission shaft periphery of marching toward is arranged with the outsourcing 24 of elastic telescopic; In this case, outsourcing 24 is rectangular compression bourdon tube, to realize parcel power transmission shaft and the cooperation power transmission shaft rotation of marching toward of marching toward; Outsourcing 24 can also be that some adhesive tapes twine coating formation when certainly, reality was used.It is hinged that the power transmission shaft of marching toward cooperates flat slot interlocking back laterally to run through formation with bearing pin with flat protruding axle between the deutomerite pin 231 before, and the flat direction difference of adjacent hinge position.This structure can guarantee the rotary work of power transmission shaft of marching toward, and effectively avoids stress and concentrate, and makes the more apparent permanent stabilization of the power transmission shaft of marching toward, can be because of distortion of deformation effect stitching and broken needle phenomenon.
Consult shown in Figure 4, the moving knife 34 that thread cutting mechanism 30 mainly includes roundlet mouth 31, needle plate 32, be fixed in the stationary knife 33 on the roundlet mouth and can cooperate stationary knife to shear, moving knife 34 drives through linkages 35, realizes shearing automatically; Near stationary knife 33, also be provided with pressure-ray film 36, be used for line ball, be beneficial to trimming.Needle plate 32 is installed on roundlet mouth 31 sides, stationary knife 33 and moving knife 34 cooperations are installed on the roundlet mouth 31, wherein moving knife 34 and the 31 coaxial installations of roundlet mouth, linkage 35 includes crank 351, fork 352, connecting rod 353, power imports into through crank 351, drives moving knife 34 through fork 352, connecting rod 353 and rotates shearing.
In this case, roundlet mouth 31 peripheries in thread cutting mechanism also are surrounded by stainless steel outer sleeve 37, stainless steel outer sleeve 37 can solve the phenomenon that the sewing process has dust to be involved in, can not allow the roundlet mouth easy to wear and prevent peeling paint, can not allow residual rusty stain pollutes above the cloth in the machine, play practicality, effect attractive in appearance, efficient.
Consult shown in Figure 5, be interaction relation between material feeding pressing wheel lifting and pressing mechanism 40 and the hemmer 50, realize by linkage, reach two-in-one control, wherein linkage comprises and lifts the pin 61 that bears down on one, pinch roller push rod 62 and connect the composite-joint 63 of lifting the pin that bears down on one, and lifts pin 61 linkage controllers that bear down on one, as pedal, the lower end of pinch roller push rod 62 connects composite-joint 63, and interlock lifting and pressing mechanism 40 in pinch roller push rod 62 upper ends rises or depresses with the control material feeding pressing wheel; Composite-joint 63 is provided with a protruding pin 631, and protruding pin 631 is drawn power drive hemmer 50, realizes turnup work.
In this case, the lower end of pinch roller push rod 62 is made as the end of thread, wears behind composite-joint 63 the corresponding mounting hole to be spirally connected fixingly with nut, realizes that promptly pinch roller push rod 62 fixedlys connected with composite-joint 63; The protruding pin 631 that composite-joint 63 is horizontally set with also is provided with the end of thread, is worn by this end of thread behind the installing hole of hemmer 50 respective drive component 51 to be spirally connected fixingly with nut, realizes that composite-joint 63 connects hemmers 50.Composite-joint 63 and lifting is beared down on one and is embedded a thimble 64 between the pin 61, and thimble 64 upper ends form ring, are inserted in protruding pin 631 roots that composite-joint is horizontally set with, and give restriction when being connected to hemmer respective drive component 51 by protruding pin 631; Lift in the axis hole of the pin 61 that bears down on one and thimble 64 lower ends are movable axial insertion, reach interlock.So that controller drives is lifted when bearing down on one pin 61, realize distributed power through composite-joint 63, and then control material feeding pressing wheel lifting and pressing mechanism 40 and hemmer 50 respectively, 40 control of lifting and pressing mechanism material feeding pressing wheel rises or depresses, 50 pairs of turnups of hemmer reach interaction relation between material feeding pressing wheel lifting and pressing mechanism 40 and the hemmer 50, make two fusing of parts, design is light and handy practical, increases productivity fast.
Claims (4)
1, turnup Sewing machines structural improvement, this machine mainly include running part, speed change gear, thread cutting mechanism, material feeding pressing wheel lifting and pressing mechanism and hemmer, it is characterized in that:
Running part be with the directly-drive servo motor as power source, this servomotor directly is installed on the body, with between the handwheel by the axle be connected;
End parts is provided with a secondary chamber before the gearbox of speed change gear, and pin sign indicating number conversion gear then is installed in the secondary chamber, and secondary chamber front end face is hidden by a removable side cover; The drive shaft system of marching toward of being stretched out by gearbox is formed by hinge linking before and after the more piece pin, but the power transmission shaft periphery of marching toward is arranged with the outsourcing of elastic telescopic;
The moving knife that thread cutting mechanism mainly includes roundlet mouth, needle plate, is fixed in the stationary knife on the roundlet mouth and can cooperates stationary knife to shear, moving knife drives through linkage, realizes shearing automatically;
It between material feeding pressing wheel lifting and pressing mechanism and the hemmer interaction relation, realize by linkage, reach two-in-one control, wherein linkage comprises and lifts the composite-joint that the pin that bears down on one is lifted in the pin that bears down on one, pinch roller push rod and connection, lift the pin linkage controller that bears down on one, the lower end of pinch roller push rod connects composite-joint, and pinch roller push rod upper end interlock lifting and pressing mechanism, composite-joint is provided with a protruding pin, and protruding pin is drawn the power drive hemmer.
2, turnup Sewing machines structural improvement according to claim 1, it is characterized in that: it is hinged that the power transmission shaft of marching toward cooperates flat slot interlocking back laterally to run through formation with bearing pin with flat protruding axle between the deutomerite pin before, and the flat direction difference of adjacent hinge position.
3, turnup Sewing machines structural improvement according to claim 1 is characterized in that: the outsourcing that is set in the power transmission shaft periphery of marching toward is rectangular compression bourdon tube.
4, turnup Sewing machines structural improvement according to claim 1 is characterized in that: the roundlet mouth periphery in thread cutting mechanism also is surrounded by stainless steel outer sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202039190U CN201305746Y (en) | 2008-11-21 | 2008-11-21 | Improved structure of sewing machine for trousers bottom curling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202039190U CN201305746Y (en) | 2008-11-21 | 2008-11-21 | Improved structure of sewing machine for trousers bottom curling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201305746Y true CN201305746Y (en) | 2009-09-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202039190U Expired - Fee Related CN201305746Y (en) | 2008-11-21 | 2008-11-21 | Improved structure of sewing machine for trousers bottom curling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201305746Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103161037A (en) * | 2013-03-13 | 2013-06-19 | 宁波舒普机电科技有限公司 | Material pulling mechanism for ribbon loom |
| CN103361901A (en) * | 2012-03-30 | 2013-10-23 | 兄弟工业株式会社 | Sewing machine |
-
2008
- 2008-11-21 CN CNU2008202039190U patent/CN201305746Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103361901A (en) * | 2012-03-30 | 2013-10-23 | 兄弟工业株式会社 | Sewing machine |
| CN103161037A (en) * | 2013-03-13 | 2013-06-19 | 宁波舒普机电科技有限公司 | Material pulling mechanism for ribbon loom |
| CN103161037B (en) * | 2013-03-13 | 2013-12-25 | 宁波舒普机电科技有限公司 | Material pulling mechanism for ribbon loom |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090909 Termination date: 20111121 |