CN202090162U

CN202090162U - Improved feed structure of sewing machine

Info

Publication number: CN202090162U
Application number: CN2011201564304U
Authority: CN
Inventors: 徐石渊
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-05-17
Filing date: 2011-05-17
Publication date: 2011-12-28
Anticipated expiration: 2021-05-17

Abstract

The utility model provides an improved feed structure of a sewing machine, which is provided with a joint mechanism formed by penetrating and pivoting a plurality of components, an independent right regulating mechanism and a left regulating mechanism are respectively arranged on two sides of the joint mechanism; and terminals are respectively provided with front and rear teeth regulating rods and gauge sheets, so that the user can conveniently change the displacement distance of front moving teeth or rear moving teeth at any time to cause difference proportion according to personal requirement or preference to meet the increasingly complex sewing requirement of the modern fabric variety and clothing design. In addition, spaced indexing teeth positions are arranged on slotting positions of a shaft rotating driving part; an alignment pointer is arranged on a double-shaft rotating guide rod, and alignment holes are formed on the shaft rotating driving part and the double-shaft rotating guide rod, so that the alignment locking is more convenient, and the regulation time can be effectively shortened.

Description

Sewing machines feeds structure-improved

Technical field

The utility model feeds structure-improved about a kind of Sewing machines, especially refer to that its articulation mechanism both sides have really independently right, left side transfer mechanism, can make things convenient for the differential ratio of displacement of transferring forward and backward mobile tooth on demand, to meet the sewing demand that cloth is various and costume design is increasingly sophisticated now, articulation mechanism is provided with registration holes and calibration tooth position at interval again, makes that the contraposition interlocking is more convenient can effectively to reduce the adjustment time.

Background technology

Press, Sewing machines is the indispensable capital equipment of rag trade, early stage traditional Sewing machines must be trampled the normal operation that can keep machine by manpower, no matter seam You machine industrial or household small-size has adopted automatic motor all at present with the epoch progress is its power, not only more convenient in the manufacturing operation, and machine is advanced and is also more become smooth and easy stable, and the sewing quality is obviously significantly promoted.

In addition, significantly improving of modern textile industry and material science and technology, the special new cloth of many character is developed successively, in order to meet the demand on the various clothing sewings, the tradition Sewing machines is also by simple structural design, and derives the machining machine and tool of various different specific functions.

For example, early stage tradition only has the Sewing machines of single mobile tooth, now all with before having, latter two moves the Sewing machines that tooth can carry out differential adjustment and replaces, it mainly can be in response to the thickness pin of sewing cloth, before the utilization, the shift motion of the mobile tooth in back is adjusted relatively, make the rear end go into the cloth of sewing position than slow-motion, because of the cloth amount of bringing into of preceding mobile tooth and the cloth amount of bringing into identical more or less (being commonly called as differential ratio) of the mobile tooth in back, promptly can allow clothing sewing face produce smooth or various different situations such as compress or fold, so can be in response to the costume design of the various complexity of elastomeric cloth and sewing relief dress ornament nature shape fold now.

Be a typical example as disclosed Chinese T WM329639 number " Sewing machines moves forward and backward tooth and transfers mechanism ", its structural design is mainly with the controlling organization of preceding mobile tooth displacement stroke distance, be arranged with the controlling organization branch of the mobile tooth displacement stroke distance in back, allow the user can comply with oneself demand or hobby, at any time the displacement stroke of the mobile tooth of preceding mobile tooth or back can be produced the function of sewing thickness pin and differential ratio apart from change easily, on assembling is used, still have a following shortcoming though product is handy:

Though 1. practise its both sides of formula structure have separately one move that tooth is adjusted tommy bar and a dial can be for adjusting control, but forward and backward two pull bars of its inner interlock still are hubbed at same shaking on the part, so when adjusting when having changed before the displacement stroke of mobile tooth apart from after, also can relatedly affect the back mobile heel that has originally mixed up positioning, the inconvenience that causes assembling to adjust.

2. because axle changes the mechanism that part is an interlock of shaking of actuator, twin shaft transduction bar and interlock thereof, though this commentaries on classics actuator is preset with limit guide groove in the planning, twin shaft transduction bar is adjusted to change its stroke distances via the release bolt displacement, but it is a flat board that axle changes the set position of limit guide groove of actuator itself, there is no the scale of assist location on it, and between axle commentaries on classics actuator and twin shaft transduction bar, also not having other can be for quick contraposition design, historical facts or anecdotes is engaged in going up when adjusting and is bothered very much, can cause also must constantly revise in the contraposition and adjust the shortcoming consuming time of taking a lot of work.Because commonly use and the existing shortcoming of preceding case Sewing machines structure, this case creation is artificial to improve above-mentioned commonly using and the existing disappearance of preceding case Sewing machines, through for many years think hard research, design, and through constantly testing, and provide a kind of Sewing machines to feed structure-improved.

Summary of the invention

The purpose of this utility model is to provide a kind of Sewing machines to feed structure-improved, and it is simple in structure, and is easy to operate, can effectively reduce the adjustment time, can better meet the sewing demand that cloth is various and costume design is increasingly sophisticated now.

For achieving the above object, the utility model discloses a kind of Sewing machines and feed structure-improved, it is characterized in that comprising:

The transmission main shaft of one transmission rotating power source, its rear string is provided with a forward and backward eccentric shaft, and the lower end connects a forward and backward elevating lever and a forward and backward ball seat connecting rod;

One forward and backward mobile tooth trace, front end is respectively equipped with a forward and backward mobile tooth, and the stage casing is equipped with limit guide groove and laterally is connected in series with a limit shaft, and is coupling respectively on forward and backward mobile tooth trace and is provided with a forward and backward mobile tooth pull bar; And,

One articulation mechanism, the cross-under pivot connects this forward and backward ball seat connecting rod and this forward and backward mobile tooth pull bar; Being provided with an axle that shakes part, a fluting in this articulation mechanism changes actuator, shakes part and axle and changes an actuator countershaft and be equipped with the twin shaft bar of transduceing and link to each other; This shakes part and is located in one and shakes on the part fixed axis, one side of shaking part is provided with the mobile tooth rocking bar in back, the limit then is set as the scalariform axial region of lengthening in addition, the mobile tooth rocking bar in back is provided with left side transfer mechanism with the outside of the mobile tooth pull bar in back, the terminal that mechanism is transferred in the left side has the back tooth adjusting lever and the first rule plate, the scalariform axial region of lengthening then is provided with an only gusset socket of folder hole with an end and compels lock with bolt and fix, and establish a right side in the outside of only gusset and preceding mobile tooth pull bar and transfer mechanism, the terminal that mechanism is transferred on the right side has another nipper adjusting lever and the second rule plate.

Wherein, this changes actuator and is provided with calibration tooth position at interval in fluting side position, and twin shaft transduction bar is provided with a pair of bit pointer, and changes to be provided with on actuator and the twin shaft transduction bar at axle and make contraposition or peg graft mutually string to make things convenient for interlocking effectively to reduce the registration holes of adjustment time with instrument when adjusting in advance.

Wherein, this shakes on the back mobile tooth rocking bar of part has a limit guide groove, be provided with in it one can be on this limit guide groove the position limiting slide block of slide displacement, this position limiting slide block and a limit shaft are coupling, and this limit shaft in addition end be fixed on the mobile tooth pull bar in a back.

Wherein, this left side is transferred mechanism and is comprised: establish a torque type axle tommy bar at the axle that shakes on the part fixed axis near mobile tooth rocking bar one side in back, one end of this torque type axle tommy bar push-and-pull brake lever that is being coupling, the other end of this push-and-pull brake lever then is coupling with mobile tooth pull bar stage casing, this back, again in the other end of this torque type axle tommy bar be provided with one pass aforementioned second a rule plate and with the affixed couple axle tommy bar of back tooth adjusting lever.

Wherein, this right side is transferred mechanism and is further comprised: on this only gusset socket one a limit sliding chutes piece and a cover plate to group, both sides again with bolt to lock, and with the limit sliding chutes piece in addition the lockhole established of pleurapophysis with should before mobile tooth pull bar rear end be coupling; Establish one and stick up tommy bar near the axle that shakes on the part fixed axis that shakes part scalariform axial region one side again, the one end push-and-pull brake lever that is being coupling, the other end of this push-and-pull brake lever then with this before mobile tooth pull bar stage casing be coupling, be provided with another in this other end that sticks up tommy bar again and pass aforementioned first rule plate and the couple axle tommy bar affixed with the nipper adjusting lever.

Pass through said structure, Sewing machines of the present utility model feeds structure-improved more allows the user can comply with oneself demand or hobby, easily at any time can be with the displacement stroke of the mobile tooth of preceding mobile tooth or back apart from change and the ratio that creates a difference, to meet the sewing demand that cloth is various and costume design is increasingly sophisticated now, and the fluting position that the axle in this articulation mechanism changes actuator is provided with calibration tooth position at interval, and twin shaft transduction bar is provided with a pair of bit pointer, and change on actuator and the twin shaft transduction bar at axle and to be provided with registration holes, make that its contraposition interlocking is more convenient can effectively to reduce the adjustment time.

Description of drawings

Fig. 1: the utility model feed mechanism is installed on the schematic diagram in the Sewing machines.

Fig. 2: the stereoscopic figure of the utility model feed mechanism.

Fig. 3: the three-dimensional exploded view of the utility model feed mechanism.

Fig. 4: the stereoscopic figure at another visual angle of the utility model feed mechanism.

Fig. 5: but the utility model axle changes the enlarged diagram of actuator and twin shaft transduction bar contraposition assembling.

Fig. 6 A-D: the feed mechanism plane illustrative view of mobile tooth behind the utility model, wherein Fig. 6 A-B is the location drawing that concerns of the mobile tooth pull bar of back tooth adjusting lever and back, Fig. 6 C-D is the location drawing that concerns after back tooth adjusting lever is shifted with the mobile pull bar in back.

Fig. 7 A-D: the feed mechanism plane illustrative view (both reverse side schematic diagrames of Fig. 6 A-D correspondence) of mobile tooth before the utility model, wherein Fig. 7 A-B is the location drawing that concerns of nipper adjusting lever and preceding mobile tooth pull bar, and Fig. 7 C-D is the location drawing that concerns after nipper adjusting lever and the preceding mobile pull bar displacement.

The specific embodiment

For enabling further to understand constitution content of the present utility model and other characteristics, lift the utility model now than specific embodiment, and the embodiment of conjunction with figs. describes as described below in detail.

See also Fig. 1～shown in Figure 4, the designed a kind of Sewing machines of the utility model feeds structure-improved, and it mainly comprises:

One transmission main shaft 1, it is interior in order to the transmission rotating power source to be located at Sewing machines 10, and its rear string is provided with a forward and backward

eccentric shaft

11,12, and the lower end is to connect forward and backward

elevating lever

13,14 and one a forward and backward ball

seat connecting rod

15,16;

One forward and backward

mobile tooth trace

21,22, its front end is respectively equipped with a forward and backward

mobile tooth

23,24, the stage casing be provided with limit guide groove 25 with a limit shaft 26 laterally serial connection mutually and and establish, and being coupling respectively on forward and backward

mobile tooth trace

21,22 is provided with a forward and backward mobile

tooth pull bar

27,28, and;

One articulation mechanism 30, the cross-under pivot connects this forward and backward ball

seat connecting rod

15,16 and this forward and backward mobile

tooth pull bar

27,28, is connected by the mutual cross-under pivot of a plurality of members to form; This articulation mechanism 30 is respectively equipped with a left side in both sides when forming and transfers mechanism 38, and its terminal has the back tooth adjusting lever 381 and the second rule plate 382; And right side transfer mechanism 37, its terminal has another nipper adjusting lever 371 and the first rule plate 372;

Allow the user can be according to own demand or hobby, easily at any time can with preceding mobile tooth 23 or afterwards the displacement stroke of mobile tooth 24 apart from change and the ratio that creates a difference, to meet the sewing demand that cloth is various and costume design is increasingly sophisticated now.

During enforcement, as Fig. 3, shown in Figure 5, one side of this articulation mechanism 30 is provided with one and shakes part 31, one and change actuator 32, it is coupling between the two and is provided with twin shaft transduction bar 33 and links to each other, the fluting 321 side positions of changeing actuator 32 in axle are provided with calibration tooth position 322 at interval, and twin shaft transduction bar 33 is provided with a pair of bit pointer 332, can point to screens mutually when making its assembling and be transferred to best interlocking position; And change actuator 32 and twin shaft transduction bar 33 is provided with registration holes 323,333 at axle, and make it can be with instrument 4 string mutually of pegging graft in advance in assembling and when adjusting, more convenient contraposition interlocking can effectively reduce the adjustment time.

Fig. 2～shown in Figure 4 and for example, the part 31 that shakes of this articulation mechanism 30 is located in one and shakes on the part fixed axis 34, one side of shaking part 31 is provided with the mobile tooth rocking bar 35 in back, the limit then is set as the scalariform axial region 36 of lengthening in addition, the outside of the mobile tooth pull bar 28 of mobile thereafter tooth rocking bar 35 and back is provided with aforesaid left side and transfers mechanism 38, the scalariform axial region 36 that extends then is provided with only gusset 374 sockets of folder hole 375 with an end and compels lock with bolt 376 and fix, and establishes a right side in the only gusset 374 and the outside of preceding mobile tooth pull bar 27 and transfer mechanism 37.

Wherein has a limit guide groove 351 on the mobile tooth rocking bar 35 in this back, be provided with in it position limiting slide block 352 can be on this limit guide groove 351 slide displacement, this position limiting slide block 352 and a limit shaft 353 are coupling, and this limit shaft 353 is fixed on the mobile tooth pull bar 28 in a back.

As Fig. 2, shown in Figure 3, this left side is transferred mechanism 38 and is comprised: shaking on the part fixed axis 34 near mobile tooth rocking bar 35 1 sides in back, axle is established a torque type axle tommy bar 383, one end of this torque type axle tommy bar 383, a push-and-pull brake lever 384 is being coupling, and the other end of this push-and-pull brake lever 384, then be coupling with mobile tooth pull bar 28 stage casings, this back, the other end in this torque type axle tommy bar 383 is provided with a couple axle tommy bar 385 again, makes to pass aforementioned second a rule plate 382 and affixed with back tooth adjusting lever 381.

And as shown in Figure 3, Figure 4, this right side is transferred mechanism 37 and is comprised: socket one limit sliding

chutes piece

377 and 378 pairs of groups of a cover plate on this only gusset 374, both sides are again with 379 pairs of locks of bolt, and with limit sliding chutes piece 377 in addition the lockhole 370 established of pleurapophysis with should before mobile tooth pull bar 27 rear ends be coupling; Establish one and stick up tommy bar 373 near the axle that shakes on the part fixed axis 34 that shakes part scalariform axial region 36 1 sides again, the push-and-pull brake lever 394 and this end that sticks up tommy bar 373 is being coupling, the other end of this push-and-pull brake lever 394 then with this before mobile tooth pull bar 27 stage casings be coupling, be provided with another couple axle tommy bar 395 in this other end that sticks up tommy bar 373 again, make and pass the aforementioned first rule plate 372 and affixed with nipper adjusting lever 371.

See also Fig. 2, Fig. 3, shown in Figure 6, during application, because of before this transmission main shaft 1 is provided with, back

eccentric shaft

11,12, the lower end is with before connecting one, back elevating lever 13, before 14 and one, back ball

seat connecting rod

15,16, wherein should before ball seat connecting rod 15 directly with one before mobile tooth trace 21 affixed, therefore, when this transmission main shaft 1 continues the rotation start, the i.e. start up and down of elevating lever 13 before being somebody's turn to do, and the start up and down of preceding mobile tooth trace 21 is somebody's turn to do in order, in addition because of the mobile tooth trace 22 in back is abutted against on preceding mobile tooth trace 21, thus can with mobile tooth trace 21 before this synchronously about starts.

In addition, the back ball seat connecting rod 16 of these back elevating lever 14 belows is fixedly arranged on this commentaries on classics actuator 32, and this commentaries on classics actuator 32 is located on the actuator fixed axis 329, so when this transmission main shaft 1 continues the rotation start, this i.e. start up and down of back elevating lever 14, and the order axle changes actuator 32 swings; Other is twin shaft transduction bar 33 because this commentaries on classics actuator 32 is coupling, and this twin shaft transduction bar 33 shakes part 31 with this and is coupling, shaking waggle on the part fixed axis 34 so can make this shake part 31, and this shakes on the back mobile tooth rocking bar 35 of part 31 and has a limit guide groove 351, can supply position limiting slide block 352 slide displacement within it, and with limit shaft 353 be connected to the back mobile tooth pull bar 28, mobile tooth trace 22 again in this back is coupling, so when shaking part 31 waggles, then can drive the horizontal displacement back and forth of the mobile tooth trace 22 in this back.

When pulling the back tooth adjusting lever 381 of transferring mechanism 38 in the left side, this torque type axle tommy bar 383 promptly can be driven simultaneously, the push-and-pull brake lever 384 that torque type axle tommy bar 383 is coupling drags the mobile tooth pull bar 28 in this back, and position limiting slide block 352 also can be followed slide displacement in limit guide groove 351, and having influence on the action size of mobile tooth pull bar 28 afterwards, final influence is located at the back mobile tooth 24 displacement stroke distances of mobile tooth trace 22 ends in this back.

See also Fig. 3, Fig. 4, shown in Figure 7, because swing component 31 other limits are set as the scalariform axial region 36 of lengthening, can be for the folder hole 375 sockets positioning and fixing arbitrarily of only gusset 374 with bolt 376 urgent locks, in addition establish one and stick up tommy bar 373 in shaking on the part fixed axis 34 again axle, the one end push-and-pull brake lever 394 that is being coupling, and the other end of this push-and-pull brake lever 394, then with this before mobile tooth pull bar 27 stage casings be coupling, be provided with another couple axle tommy bar 395 in this other end that sticks up tommy bar 373 again, make and pass the aforementioned first rule plate 372 and affixed with nipper adjusting lever 371, so when pulling the nipper adjusting lever 371 of transferring mechanism 37 in the right side, this sticks up tommy bar 373 and promptly can be driven simultaneously, and the push-and-pull brake lever 394 that it is coupling promptly is affected and mobile tooth pull bar 27 before dragging this, limit sliding

chutes piece

377 and 378 pairs of groups of cover plate of 374 sockets of its only gusset promptly can be followed slide displacement simultaneously, and having influence on the action size that is arranged in limit sliding chutes piece 377 other the preceding mobile tooth pull bars 27 that side connect, final influence is located at the preceding mobile tooth 23 displacement stroke distances of these preceding mobile tooth trace 21 ends.

Please join Fig. 1～shown in Figure 7, the advantage of the utility model structural design is as from the foregoing: the fluting 321 side positions that these articulation mechanism 30 axis change actuator 32 are provided with calibration tooth position 322 at interval, and twin shaft transduction bar 33 is provided with a pair of bit pointer 332, and on axle commentaries on classics actuator 32 and twin shaft transduction bar 33, be provided with registration holes 323,333, can make that its contraposition interlocking is more convenient can effectively to reduce the adjustment time, both sides had right side transfer mechanism 37 and the left side transfer mechanism 38 that separates alone when articulation mechanism 30 was formed again, so before can making things convenient for transfer on demand, the mobile tooth 23 in back, the differential ratio of 24 displacement is to meet the sewing demand that cloth is various and costume design is increasingly sophisticated now.

Above-mentioned specific embodiment is to be used for describing in detail the purpose of this utility model, feature and effect, but only be part embodiment of the present utility model, when not limiting practical range of the present utility model with this, all people's bodyguards of being familiar with this type of skill according to the above description, reach the conversion or the modification that reach the equivalence of doing on effect according to the contained constructional device feature of following claim, its essence does not break away from spiritual category person of the present utility model, all should be included in patent right scope of the present utility model.

Claims

1. a Sewing machines feeds structure-improved, it is characterized in that comprising:

2. Sewing machines as claimed in claim 1 feeds structure-improved, it is characterized in that, this changes actuator and is provided with calibration tooth position at interval in fluting side position, and twin shaft transduction bar is provided with a pair of bit pointer, and changes to be provided with on actuator and the twin shaft transduction bar at axle and make contraposition or peg graft mutually string to make things convenient for interlocking effectively to reduce the registration holes of adjustment time with instrument when adjusting in advance.

3. Sewing machines as claimed in claim 1 feeds structure-improved, it is characterized in that, this shakes on the back mobile tooth rocking bar of part has a limit guide groove, be provided with in it one can be on this limit guide groove the position limiting slide block of slide displacement, this position limiting slide block and a limit shaft are coupling, and other end of this limit shaft is fixed on the mobile tooth pull bar in a back.

4. Sewing machines as claimed in claim 1 feeds structure-improved, it is characterized in that, this left side is transferred mechanism and is comprised: establish a torque type axle tommy bar at the axle that shakes on the part fixed axis near mobile tooth rocking bar one side in back, one end of this torque type axle tommy bar push-and-pull brake lever that is being coupling, the other end of this push-and-pull brake lever then is coupling with mobile tooth pull bar stage casing, this back, again in the other end of this torque type axle tommy bar be provided with one pass aforementioned second a rule plate and with the affixed couple axle tommy bar of back tooth adjusting lever.

5. Sewing machines as claimed in claim 1 feeds structure-improved, it is characterized in that, this right side is transferred mechanism and further comprised: socket one a limit sliding chutes piece and a cover plate are to group on this only gusset, both sides again with bolt to lock, and with the limit sliding chutes piece in addition the lockhole established of pleurapophysis with should before mobile tooth pull bar rear end be coupling; Establish one and stick up tommy bar near the axle that shakes on the part fixed axis that shakes part scalariform axial region one side again, the one end push-and-pull brake lever that is being coupling, the other end of this push-and-pull brake lever then with this before mobile tooth pull bar stage casing be coupling, be provided with another in this other end that sticks up tommy bar again and pass aforementioned first rule plate and the couple axle tommy bar affixed with the nipper adjusting lever.