CN108118454A - It is a kind of can the adjusting knob of fast clutch and presser foot lifter height adjustment mechanism - Google Patents

Abstract

The present invention provide it is a kind of can fast clutch adjusting knob, including the fixed adjusting limiting plate in position, rotationally it is threaded through the shaft adjusted in limiting plate, it is fixed on the knob of shaft one end, it is fixed on the regulating wheel of the shaft other end, and positioned at knob and adjust the spring between limiting plate, spring is in compressive state, regulating wheel is equipped with spacing teat towards the end face for adjusting limiting plate, regulating wheel is equipped with the eccentric axial portion with shaft eccentric setting backwards to the other end for adjusting limiting plate, adjust offered on limiting plate towards regulating wheel and with the matched /V recess portion of spacing teat.Above-mentioned adjusting knob by press or unclamp knob can realize regulating wheel and adjust limiting plate between clutch, it and then can be when unclamping knob, adjusting knob is engaged generally in self-locking state with adjusting the /V recess portion on limiting plate by the spacing teat in regulating wheel, therefore its self-locking is reliable and stable, so as to ensure that presser foot lifter height adjustment mechanism can reliably be run after presser feet height is adjusted.

Description

It is a kind of can the adjusting knob of fast clutch and presser foot lifter height adjustment mechanism

Technical field

The present invention relates to a kind of regulating part, more particularly to a kind of presser foot lifter height adjustment mechanism suitable for lockstitch button holder Can fast clutch adjusting knob and with this can fast clutch adjusting knob presser foot lifter height adjustment mechanism.

Background technology

Lockstitch button holder is the type in industrial sewing machine, belongs to extraordinary machine, is mainly used for processing the button in all kinds of dress ornaments Hole.With the continuous development of technology, lockstitch button holder also develops towards semi-automatic, full-automatic direction, therefore its function is also increasingly It is perfect, for example presser foot lifter height adjustment mechanism is configured in lockstitch button holder, for adjusting the stroke that presser feet is moved up or moved down, so that The cloth of different-thickness can be suitable for by obtaining the presser foot device in lockstitch button holder, and then ensures the normal work of lockstitch button holder and have Higher work efficiency.In general, operating parts can be all configured in the lockstitch button holder with presser foot lifter height adjustment mechanism, the behaviour Workpiece can be knob adjustable type structure, screw regulating type structure, spanner adjustable type structure etc., still, current most of operations Part cannot all realize fast clutch well, therefore self-locking poor reliability, so as to it cannot be guaranteed that presser foot lifter height adjustment mechanism can By operation.

The content of the invention

In view of the foregoing deficiencies of prior art, it is an object of the invention to provide it is a kind of can fast clutch adjusting rotation Button, self-locking is reliable and stable, simple and quick.

To achieve the above object, the present invention provide it is a kind of can fast clutch adjusting knob, including the fixed adjusting in position Limiting plate is rotationally threaded through the shaft adjusted in limiting plate, is fixed on the knob of shaft one end, is fixed on the shaft other end Regulating wheel and positioned at knob and adjust the spring between limiting plate, the spring is in compressive state, the regulating wheel court Spacing teat is equipped with to the end face for adjusting limiting plate, regulating wheel is equipped with backwards to the other end for adjusting limiting plate and shaft The eccentric axial portion of eccentric setting, it is described adjusting limiting plate on offer it is towards regulating wheel and recessed with the matched /V of spacing teat Portion；When pressing knob, the spacing teat in the regulating wheel is separated with adjusting the /V recess portion on limiting plate, and knob passes through Shaft drives regulating wheel to rotate；When unclamping knob, the spacing teat in the regulating wheel is recessed with adjusting the /V on limiting plate Portion is engaged, adjusting knob self-locking.

Further, a position is further included to fix and set graduated scale bidding quotation, the scale bidding quotation be located at knob and Between adjusting limiting plate, offered on scale bidding quotation and hold the through hole that spring and shaft pass through.

Preferably, the knob is equipped with towards the end face for adjusting limiting plate and is oriented to axle portion, and the spring pocket is in shaft On, and one end of spring is sleeved in the guiding axle portion of knob.

Further, the spacing teat in the regulating wheel is a limit bolt, and the /V on the adjusting limiting plate is recessed Portion is multiple limit holes；When unclamping knob, the end of the limit bolt is inserted in a limit hole in multiple limit holes.

Preferably, the end face for adjusting limiting plate towards regulating wheel is equipped with two backing pins, and two backing pins distinguish position Rotation at the both ends of /V recess portion, for limiting the limit bolt.

Further, the spacing teat in the regulating wheel is a gear part, the /V recess portion adjusted on limiting plate The gear grooved being adapted for one with gear part；When unclamping knob, the gear part is located in gear grooved.

Further, the spacing teat in the regulating wheel is a polygonal portion, and the /V on the adjusting limiting plate is recessed Portion is a polygon groove being adapted with polygonal portion；When unclamping knob, the polygonal portion is located in polygon groove.

The application also provides a kind of presser foot lifter height adjustment mechanism, and in casing, the presser foot lifter height adjusts machine Structure includes presser foot lifter height adjustment assembly, the presser foot lifter drive component in casing, in casing and with first The swing rod of fixed swing pivot, the driving member along the extension of casing length direction and the presser foot lifter execution group in casing Part, has presser bar in the presser foot lifter executive module, and the presser foot lifter drive component is connected with one end of swing rod, drives pendulum One end of bar is swung, and the other end of the swing rod and one end of driving member are hinged, the other end and the presser foot lifter execution group of driving member Part is connected, presser bar is driven to move up or move down, and the presser foot lifter height adjustment assembly includes as described above can fast clutch Adjusting knob, it is described adjusting limiting plate be fixed on the inner wall of casing, the knob is located at the outside of casing；When pressing is revolved Button, by shaft drive regulating wheel rotate when, the eccentric axial portion makes the hinge joint of swing rod and driving member move up or move down.

Further, the presser foot lifter height adjustment assembly further includes guide-rail plate and connecting pin moving up and down, institute Stating guide-rail plate has the first guide-rail plate arm and the second guide-rail plate arm being arranged in parallel, the second guide-rail plate arm, transmission One end of part and the other end of swing rod are hinged by the connecting pin, and the length direction along swing rod is offered in the swing rod The first sliding groove of extension, the second guide-rail plate arm offer second extended along the second guide-rail plate arm length direction and slide Slot, the connecting pin are threaded through in the first sliding groove and the second sliding slot；It is offered on the first guide-rail plate arm along the first guide rail 3rd sliding slot of plate arm length direction extension, the eccentric axial portion are threaded through in the 3rd sliding slot.

Preferably, the presser foot lifter height adjustment assembly further includes mounting bracket, which includes mutually fixed with casing Mounting bracket fixed part and the mounting bracket guide part for offering the first guide groove extended up and down, the guide-rail plate also have position Guide-rail plate body part between the first guide-rail plate arm and the second guide-rail plate arm is fixed on the guide-rail plate body part and leads To bolt, the guide blot is threaded through in the first guide groove of mounting bracket guide part.

As described above, it is of the present invention can the adjusting knob of fast clutch and presser foot lifter height adjustment mechanism, have with Lower advantageous effect：

Above-mentioned adjusting knob by press or unclamp knob can realize regulating wheel and adjust limiting plate between clutch, and then Adjusting can be engaged with adjusting the /V recess portion on limiting plate by the spacing teat in regulating wheel when unclamping knob Knob is generally in self-locking state, therefore its self-locking is reliable and stable, so as to ensure presser foot lifter height adjustment mechanism in presser feet height tune It can reliably be run after section end；In addition, above-mentioned adjusting knob need to only be pressed when adjusting and turning knob, operation letter It is single quick.

Description of the drawings

Fig. 1 be the application in can fast clutch adjusting knob structure diagram.

Fig. 2 and Fig. 3 is the explosive view of Fig. 1.

Fig. 4 to Fig. 6 is the different embodiments of spacing teat in Fig. 1.

Fig. 7 is the structure diagram of lockstitch button holder in the application.

Fig. 8, Fig. 9 are structure diagram of the presser foot lifter height adjustment mechanism under different visual angles in the application.

Figure 10 is the explosive view of Fig. 9.

Figure 11 is the structure diagram of presser foot lifter drive component in Fig. 9.

Figure 12 is the structure diagram of presser foot lifter executive module in Fig. 9.

Figure 13 is the schematic diagram of presser foot lifter height adjustment mechanism in the application.

Figure 14 and Figure 15 is the different embodiments of presser foot lifter height adjustment assembly in Figure 13.

Figure 16 is the side view of Figure 15.

Figure 17 and Figure 18 is the different embodiments of rotating member in Fig. 9.

Component label instructions

10 casing, 64 guide plate

101 drive end unit, 641 second guide groove

102 chain-drive section, 65 stent

20 driving motor, 651 sliding block

30 presser foot lifter drive component, 66 axial screw

31 rotating member, 70 presser foot lifter height adjustment assembly

311 cam circumferential surface, 71 guide-rail plate

312 cam path, 711 first guide-rail plate arm

313 first arc section, 712 second guide-rail plate arm

314 second arc section, 713 guide-rail plate body part

315 three-arc section, 714 second sliding slot

32 driving the 3rd sliding slots of crank 715

321 crank body portion, 72 connecting pin

322 first crank arm, 73 mounting bracket

323 second crank arm, 731 mounting bracket fixed part

33 roller, 732 mounting bracket guide part

34 adapter, 733 first guide groove

341 adapter body part, 74 guide blot

342 adapter axle portion, 80 adjusting knob

35 fixed pins 81 adjust limiting plate

36 motor mounting plate, 811 limit hole

37 swing link pin, 812 backing pin

38 torsional spring, 82 shaft

39 screw, 83 knob

40 swing rods 831 are oriented to axle portion

41 the first sliding groove, 84 regulating wheel

42 baffle ring, 841 eccentric axial portion

50 driving member, 842 limit bolt

60 presser foot lifter executive module, 843 gear part

61 presser bar, 844 polygonal portion

62 presser feet lifting and swinging bar, 85 spring

63 presser feet lifting linking member, 86 scale bidding quotation

631 regulating tank, 861 through hole

Specific embodiment

Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this explanation Content disclosed by book understands other advantages and effect of the present invention easily.

It should be clear that structure, ratio, size depicted in this specification institute accompanying drawings etc., only specification to be coordinated to be taken off The content shown so that those skilled in the art understands and reads, is not limited to the enforceable qualifications of the present invention, therefore Do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size are not influencing the present invention Under the effect of can be generated and the purpose that can reach, it should all still fall and obtain the model that can cover in disclosed technology contents In enclosing.Meanwhile cited such as " on ", " under " in this specification, "left", "right", the term of " centre " and " one ", also it is only Convenient for the clear of narration rather than to limit the enforceable scope of the present invention, relativeness is altered or modified, in no essence It changes under technology contents, when being also considered as the enforceable scope of the present invention.

In following embodiment, all directions are defined as follows：The length direction of lockstitch button holder is defined as left and right directions, by keyhole The width of machine is defined as front-rear direction, and the short transverse of lockstitch button holder is defined as vertical direction.

The application provide it is a kind of can fast clutch adjusting knob 80, as shown in Figure 1 to Figure 3, can fast clutch adjusting Knob 80 include position it is fixed adjust limiting plate 81, extend along before and after the width of casing 10 shaft 82, be fixed on turn The knob 83 of 82 front end of axis, the regulating wheel 84 for being fixed on 82 rear end of shaft and positioned at knob 83 and adjust limiting plate 81 between Spring 85；The shaft 82 is rotationally threaded through casing 10 and adjusts in limiting plate 81；The spring 85 is along the longitudinal direction It is axially extending and in compressive state, therefore spring 85 is a compression spring；The knob 83, spring 85 adjust limiting plate 81 and adjust Wheel 84 is arranged successively from front to back, and the regulating wheel 84 is equipped with /V prominent forward towards the front end face for adjusting limiting plate 81 Protrusion, regulating wheel 84 are equipped with and 82 eccentric setting of shaft and the bias to extend back backwards to the rear end face for adjusting limiting plate 81 Axle portion 841, offer towards regulating wheel 84 on the rear end face for adjusting limiting plate 81 and with the matched /V of spacing teat Recess portion.When pressing knob 83 backward, knob 83 drives regulating wheel 84 synchronously to move backward by shaft 82, therefore regulating wheel 84 On spacing teat be separated with adjusting the /V recess portion on limiting plate 81, operator's turning knob 83 at this time, then knob 83 By shaft 82 regulating wheel 84 is driven synchronously to rotate, then the high and low position of eccentric axial portion 841 is changing, so as to adjustable by inclined The high and low position for the component that mandrel portion 841 acts on.After adjusting, knob 83 is unclamped, since spring 85 is in the state of compression, Therefore spring 85 applies an active force facing forward to knob 83, knob 83 moves forward reset under the active force of spring 85, then revolves Button 83 drives regulating wheel 84 synchronously to move forward reset by shaft 82, so that spacing teat and tune in regulating wheel 84 /V recess portion on section limiting plate 81 is engaged, then regulating wheel 84 can not rotate so that 80 self-locking of adjusting knob, knob 83 can not It rotates.Therefore, above-mentioned adjusting knob 80 can quickly realize regulating wheel 84 with adjusting limiting plate 81 by pressing or unclamping knob 83 Between clutch, and then can when unclamping knob 83, by the spacing teat in regulating wheel 84 with adjust limiting plate 81 on /V recess portion is engaged so that adjusting knob 80 is generally in self-locking state, therefore its self-locking is reliable and stable；In addition, use above-mentioned tune When saving the high and low position of 80 regulating member of knob, simultaneously turning knob 83 need to be only pressed, it is simple and quick.

It is above-mentioned can fast clutch adjusting knob 80 be mainly used in this application lockstitch button holder presser foot lifter height adjust machine In structure, at this point, as shown in fig. 7, can fast clutch adjusting knob 80 be mounted on lockstitch button holder casing 10 antetheca on, the adjusting Limiting plate 81 is mutually fixed with 10 inner wall of casing, and knob 83 and spring 85 are located at outside casing 10, adjusts limiting plate 81 and regulating wheel 84 are located inside casing 10.As shown in Fig. 8 to Figure 10, the presser foot lifter height adjustment mechanism is mounted on the casing 10 of lockstitch button holder Interior, the casing 10 has drive end unit 101 and chain-drive section 102, wherein, drive end unit 101 is located at the left end of casing 10, chain-drive section 102 are located at the right end of casing 10；The presser foot lifter height adjustment mechanism includes presser foot lifter height adjustment assembly 70, mounted on tail Presser foot lifter drive component 30 in portion 101, in drive end unit 101 and with first fix swing pivot O1 swing rod 40, The driving member 50 and the presser foot lifter executive module 60 in chain-drive section 102 extended along 10 length direction of casing or so；Institute State swing rod 40 vertically up and down extension, swing rod 40 by the fixed pin extended before and after one be rotatably connected at casing 10 or Person, swing rod 40 are rotatably connected at a fixed plate by the fixed pin extended before and after one, which is fixed on casing 10, Therefore fixed pin fixes swing pivot O1 for the first of swing rod 40；There is the presser feet extended up and down in the presser foot lifter executive module 60 Bar 61, the lower end of the presser bar 61 extend downwardly from casing 10 and are fixed with presser feet；The presser foot lifter drive component 30 and pendulum The lower end of bar 40 be connected, the drive lower end of swing rod 40 is swung, and the upper end of the swing rod 40 and the left end of driving member 50 are hinged, and are passed The right end of moving part 50 is connected with presser foot lifter executive module 60, presser bar 61 is driven to move up or move down, so as to fulfill upward lift pressure Foot bleeds off pressure downwards foot；Can the eccentric axial portion 841 of adjusting knob 80 of fast clutch act on the hinge of swing rod 40 and driving member 50 The high and low position of the hinge joint of contact, adjusting swing rod 40 and driving member 50.In the presser foot lifter height adjustment mechanism, except presser foot lifter height It spends outside adjusting part 70, presser foot lifter drive component 30, swing rod 40, driving member 50 and presser foot lifter executive module 60 form lockstitch button holder Presser foot lifter driving mechanism.

When pressing simultaneously turning knob 83 backward, the /V in spacing teat and adjusting limiting plate 81 in regulating wheel 84 is recessed Portion is separated, and knob 83 drives regulating wheel 84 synchronously to rotate by shaft 82, then the high and low position of eccentric axial portion 841 is becoming Change, so that the hinge joint of swing rod 40 and driving member 50 is moved up or moved down, adjust the hinge joint and pendulum of swing rod 40 and driving member 50 The first of bar 40 fixes the length between swing pivot O1, and then adjusts the size that swing rod 40 drives 50 amplitude of fluctuation of driving member, The final driving member 50 that adjusts drives the stroke that presser bar 61 is moved up or moved down in presser foot lifter executive module 60, realizes presser foot lifter height Adjust so that presser foot lifter driving mechanism can be suitable for different-thickness cloth, and then ensure lockstitch button holder can work normally and With higher work efficiency.Specifically, after presser foot lifter height is adjusted, lockstitch button holder is in operation process, presser foot lifter driving Component 30 drives the lower end of swing rod 40 to swing, so that the upper end of swing rod 40 is also swung；When making swing rod by adjusting knob 80 40 and the hinge joint of driving member 50 when being located at high-order, then the hinge joint of swing rod 40 and driving member 50 is fixed with the first of swing rod 40 and put Length between activity supporting point O1 is longer, therefore the amplitude of fluctuation of 40 upper end of swing rod is larger, and swing rod 40 drives lift pressure by driving member 50 The stroke that presser bar 61 is moved up or moved down in foot executive module 60 increases, suitable for thin material；When making swing rod by adjusting knob 80 40 and the hinge joint of driving member 50 when being located at low level, then the hinge joint of swing rod 40 and driving member 50 is fixed with the first of swing rod 40 and put Length between activity supporting point O1 is shorter, therefore the amplitude of fluctuation of 40 upper end of swing rod is smaller, and swing rod 40 drives lift pressure by driving member 50 The stroke that presser bar 61 is moved up or moved down in foot executive module 60 reduces, and expects suitable for thickness.

In above-mentioned presser foot lifter height adjustment mechanism, the driving member 50 can be connecting rod, or steel wire rope, Fig. 8 and In presser foot lifter height adjustment mechanism shown in Fig. 9, driving member 50 is a kinematic link.

Further, as shown in Figure 1 to Figure 3, further include one and be fixed on the graduated scale being located on casing 10 outside casing 10 Disk 86, therefore between the scale bidding quotation 86 is located at knob 83 and adjusts limiting plate 81, it is further opened with holding bullet on the scale bidding quotation 86 The through hole 861 that spring 85 and shaft 82 pass through；The front surface of the scale bidding quotation 86 is equipped with to represent the quarter of presser foot lifter height Degree when pressing simultaneously turning knob 83 backward, makes the pointer on knob 83 be directed at some scale on scale bidding quotation 86, unclamps again rotation Button 83, then the pointer on knob 83 be targeted by new scale, entire presser foot lifter height adjustment assembly 70 also achieves self-locking, and then Personnel easy to operation carry out the operation of presser foot lifter height adjusting.Preferably, the scale bidding quotation 86, casing 10 and adjusting limit Position 81 three of plate is mutually fixed by the fixing screws of multiple front and rear extensions；The knob 83 and shaft 82, shaft 82 and regulating wheel 84 are mutually fixed by multiple fixing screws radially extended along shaft 82.

Preferably, Fig. 2 is seen, the knob 83 is equipped with the guiding axis to extend back towards the rear end face for adjusting limiting plate 81 Portion 831, the spring 85 are sleeved in shaft 82, and the front end sleeve of spring 85 is in the guiding axle portion 831 of knob 83, spring 85 Rear end is resisted against on the front end face of casing 10, so as to improve unclamp knob 83 after, spring 85 make knob 83 move forward reset Accuracy.

In the application, form that there are many spacing teats of regulating wheel 84 and the /V recess portion for adjusting limiting plate 81：/V is dashed forward The form one of portion and /V recess portion, as shown in Figures 2 and 3, the spacing teat in the regulating wheel 84 is a limit extended forward Position bolt 842, the /V recess portion adjusted on limiting plate 81 is multiple limit holes 811；When unclamping knob 83, the /V The end of bolt 842 is inserted in a limit hole 811 in multiple limit holes 811, so as to limit regulating wheel 84 and knob 83 It rotates；More preferably, the rear end face for adjusting limiting plate 81 towards regulating wheel 84 is equipped with two backing pins 812 to extend back, Two backing pins 812 are respectively at the both ends of /V recess portion, i.e., multiple limit holes 811 are located between two backing pins 812, in knob During 83 drive the rotation of regulating wheel 84, backing pin 812 is used to limit the rotation of 84 upper limit bolt 842 of regulating wheel so that limit Position bolt 842 can only rotate in the range of having limit hole 811, also limit the slewing area of knob 83.Spacing teat with The form two of /V recess portion, as shown in figure 4, spacing teat in the regulating wheel 84 is a gear part 843, the adjusting /V /V recess portion on plate 81 is a gear grooved being adapted with gear part 843；When unclamping knob 83, the gear part 843 In gear grooved, so as to limit the rotation of regulating wheel 84 and knob 83.The form three of spacing teat and /V recess portion, such as Fig. 5 or Shown in Fig. 6, the spacing teat in the regulating wheel 84 is a polygonal portion 844, the /V recess portion adjusted on limiting plate 81 The polygon groove being adapted for one with polygonal portion 844；When unclamping knob 83, the polygonal portion 844 is located at polygon groove In, so as to limit the rotation of regulating wheel 84 and knob 83；More preferably, the spacing teat in regulating wheel 84 is regular polygon portion, is adjusted It is a regular polygon slot being adapted with regular polygon portion 844 to save the /V recess portion on limiting plate 81.Certainly, the spacing teat The other forms such as spline also can be used with /V recess portion.

Further, as shown in Fig. 8 to Figure 10, the presser foot lifter height adjustment assembly 70 further includes moving up and down lead Rail plate 71 and the connecting pin of front and rear extension 72；The guide-rail plate 71 has the first guide-rail plate arm 711 for being arranged in parallel and the Two guide-rail plate arms 712, the first guide-rail plate arm 711 and the second guide-rail plate arm 712 are all along length direction of casing 10 or so Extension, therefore be oppositely arranged before and after the first guide-rail plate arm 711 and the second guide-rail plate arm 712；The bias of the adjusting knob 80 Axle portion 841 is connected with the first guide-rail plate arm 711, the first guide-rail plate arm 711 is driven to move up and down；Second guide-rail plate The upper end of arm 712, the left end of driving member 50 and swing rod 40 is hinged by the connecting pin 72, therefore connecting pin 72 is described The hinge joint of swing rod 40 and driving member 50 offers first extended up and down along the length direction of swing rod 40 in the swing rod 40 and slides Slot 41, the second guide-rail plate arm 712 offer the second sliding slot extended along 712 length direction of the second guide-rail plate arm or so 714, the connecting pin 72 is threaded through in 41 and second sliding slot 714 of the first sliding groove, and the front end of connecting pin 72 is further fixed on being located at the The baffle ring 42 of two guide-rail plate arms, 712 front side.When the eccentric axial portion 841 of adjusting knob 80 makes the first guide-rail plate arm about 711 When mobile, then guide-rail plate 71 is whole moves up and down, therefore the second guide-rail plate arm 712 of guide-rail plate 71 also synchronously moves up and down, So as to which the hinge joint for driving swing rod 40,50 and second guide-rail plate arm of driving member, 712 three also synchronously moves up and down, that is, adjust Position namely adjustment connecting pin 72 of the connecting pin 72 in 41 and second sliding slot 714 of the first sliding groove are fixed with the first of swing rod 40 Spacing between swing pivot O1.

Preferably, as shown in Fig. 8 to Figure 10, the presser foot lifter height adjustment assembly 70 further includes mounting bracket 73, the installation Frame 73 is including the mutually fixed mounting bracket fixed part 731 in top with casing 10 and offers the first guide groove extended up and down 733 mounting bracket guide part 732, the guide-rail plate 71, which also has, is located at the first guide-rail plate arm 711 and the second guide-rail plate arm Guide-rail plate body part 713 between 712, therefore guide-rail plate body part 713 extends along before and after the width of casing 10, the first guide rail Plate arm 711 is located at the front end of guide-rail plate body part 713, after the second guide-rail plate arm 712 is located at guide-rail plate body part 713 At end；Guide blot 74 is fixed on the guide-rail plate body part 713, the guide blot 74 is threaded through mounting bracket guide part In 732 the first guide groove 733 and head of guide blot 74 is located at outside the first guide groove 733, and guide blot 74 forms guide rail The track of plate 71 can improve adjusting knob 80 by the mutual cooperation of 74 and first guide groove 733 of guide blot and drive guide-rail plate 71 Stability and veracities moved up and down, and then improve accuracy and accuracy that presser foot lifter height is adjusted.Described first leads The 3rd sliding slot 715 extended along 711 length direction of the first guide-rail plate arm or so, the bias are offered on rail plate arm 711 Axle portion 841 is threaded through in the 3rd sliding slot 715；During turning knob 83, the eccentric axial portion 841 drives the first guide-rail plate arm 711 It moves up and down, while eccentric axial portion 841 also horizontally slips in the 3rd sliding slot 715, so as to adjust swing rod 40 and driving member 50 The high and low position of hinge joint, and then realize that presser foot lifter height is adjusted.

Further, as shown in Figure 10 and Figure 11, the presser foot lifter drive component 30 includes turning with cam circumferential surface 311 Moving part 31, the driving crank 32 with the second fixation swing pivot O2, roller 33, adapter 34 and it is fixed on the swing rod Fixed pin 35 at 40 lower end；The fixed pin 35 extends along before and after the width of casing 10；The adapter 34 includes Adapter body part 341 and the adapter axle portion 342 extended straight down from the lower end of adapter body part 341；Described turn Moving part 31 directly or indirectly drives rotation by a power source, the roller 33 be rotatably connected at driving crank 32 one end, And lean with the cam circumferential surface 311 of rotating member 31, the adapter axle portion 342 is rotatable and can axially movably wear up and down In the rear end of driving crank 32, the fixed pin 35 is rotatable and front and rear can axially movably be threaded through adapter body part 341 In.

In the present embodiment, the power source is vertically installed at driving motor 20 in drive end unit 101 for one, thus its can within It is placed in casing 10, and then the presser foot lifter driving mechanism of lockstitch button holder can be integrally built in the casing 10 of lockstitch button holder, so as to Simplify the overall structure of presser foot lifter driving mechanism, reduce its occupied space, greatly improve the overall aesthetics of lockstitch button holder.In addition, The vertical installation of driving motor 20 and after being built in casing 10, can be convenient in lockstitch button holder other mechanisms (such as upper thread cutting mechanism, Lower thread cutting mechanism) power source also using the driving motor 20, i.e., presser foot lifter driving mechanism easy to implement is shared with other mechanisms One driving motor 20 and same root motor shaft, so as to reduce the cost of lockstitch button holder complete machine.

The driving motor 20 can directly be connected with rotating member 31, directly drive rotating member 31 and rotate；Driving motor 20 can also be connected with rotating member 31 indirectly by transmission mechanisms such as gear, synchronous belts, indirectly rotating member 31 be driven to rotate； In the present embodiment, the rotating member 31 is fixed on the output shaft of driving motor 20, therefore driving motor 20 directly drives rotating member 31 rotate.In addition, the driving motor 20 can be directly anchored on casing 10, motor mounting plate 36 can also be set to be consolidated It is fixed；In the present embodiment, a motor for being fixed on casing 10 is equipped with as shown in Fig. 8 to Figure 10, in the drive end unit 101 of the casing 10 Installing plate 36, the driving motor 20 are fixed on vertically on the lower face of motor mounting plate 36, driving motor 20 it is vertical up and down The output shaft of extension is fixed on after being upward through from motor mounting plate 36 in rotating member 31 so that 31 rotatable twelve Earthly Branches of rotating member Support is on the upper surface of motor mounting plate 36；For installing the rear side that the fixed plate of swing rod 40 is located at motor mounting plate 36.Furthermore As shown in figure 4, the driving crank 32 includes crank body portion 321, extends substantially forward from the periphery in crank body portion 321 First crank arm 322 and the second crank arm 323 extended generally rearward from the periphery in crank body portion 321, the drive The crank body portion 321 of dynamic crank 32 is rotatably connected at motor mounting plate 36 by the swing link pin 37 of about one extension, therefore Swing link pin 37 forms the second of driving crank 32 and fixes swing pivot O2, and the roller 33 can by the screw 39 of about one extension The front end of the first crank arm 322 of driving crank 32 is rotationally connected with, the adapter axle portion 342 of the adapter 34 can turn The rear end of the second crank arm 323 that is dynamic and being axially movably threaded through driving crank 32 up and down.The driving crank 32 Lower end is equipped with a torsional spring 38, and the both ends of the torsional spring 38 are connected to the second crank arm 323 and motor mounting plate 36, torsional spring 38 are used to apply an active force to driving crank 32 so that the front end of driving crank 32 is close to rotating member 31, so that driving The roller 33 of dynamic 32 front end of crank is close to the cam circumferential surface 311 of rotating member 31 always, ensures the accuracy of power transmission and reliable Property.

Further, as shown in figure 17, the rotating member 31 is directly a cam, and the outer circumferential surface composition of the cam is described convex Take turns circumferential surface 311.Alternatively, as shown in figure 18, the rotating member 31 is a cylinder, the outer circumferential surface of the cylinder offers cam path 312, The slot circumferential surface of the cam path 312 forms the cam circumferential surface 311, in order to realize that other mechanisms of lockstitch button holder and foot lifting mechanism are total to With a driving motor 20, in bar shape, casing 10 is all preferably built in reference to driving motor 20 and rotating member 31 for rotating member 31 In structure, can by opening up slot on the upper surface of rotating member 31, lower face, easily drive lockstitch button holder other mechanisms.

Further, as shown in fig. 10 and fig. 12, the presser foot lifter executive module 60 includes having the 3rd to fix swing branch The presser feet lifting and swinging bar 62 of point O3, presser feet lifting linking member 63 are fixed on the guide plate 64 of casing 10 and stent 65, described The second guide groove 641 extended up and down is offered in guide plate 64；What the front end face of the stent 65 protruded forward equipped with one Sliding block 651, the presser bar 61 are fixed in stent 65；The presser feet lifting and swinging bar 62 is generally L-shaped, the driving member 50 right end and the upper end in 62 left side of presser feet lifting and swinging bar are hinged, the lower end on 62 right side of presser feet lifting and swinging bar and pressure The upper end of foot lifting linking member 63 is hinged, and the lower end of the presser feet lifting linking member 63 and sliding block 651 are hinged, the sliding block 651 Can slide up and down in the second guide groove 641 of guide plate 64 and in the second guide groove 641, i.e., presser feet lifting and swinging bar 62, Presser feet lifting linking member 63, the stent 65 with sliding block 651 and the guide plate 64 with the second guide groove 641 form a crank Slide block mechanism.In addition, the driving member 50 and presser feet lifting and swinging bar 62, presser feet lifting and swinging bar 62 and presser feet lifting linking member 63 It is hinged by the axial screw 66 of front and rear extension.

Preferably, as shown in fig. 10 and fig. 12, the regulating tank of about one extension is offered in the presser feet lifting linking member 63 631, the axial screw 66 for hinged presser feet lifting and swinging bar 62 and presser feet lifting linking member 63 is threaded through the regulating tank 631 In；A compression spring is cased on the presser bar 61, which is not shown in figure, and the upper and lower ends of the compression spring are born against in casing 10 and stent 65.In presser foot lifter and during bleeding off pressure foot, since presser feet is not in contact with cloth, therefore the pressure of compression spring is all made For stent 65, so that the axial screw 66 being threaded through in regulating tank 631 offsets always in the upper edge of regulating tank 631 It leans on, perform presser foot lifter action exactly and bleeds off pressure foot-propelled work.After presser feet is put down, then presser feet and cloth are in contact, then compression spring Pressure is born by cloth and needle plate, therefore the upper edge of the axial screw 66 being threaded through in regulating tank 631 and regulating tank 631 can unclamp. Due to the strip grooves that regulating tank 631 is about one extension, therefore it enables presser foot lifter driving mechanism to be suitable for different-thickness Cloth, and be also convenient for adjusting the stroke that presser bar 61 is moved up or moved down.

Figure 13 is the schematic diagram of presser foot lifter height adjustment mechanism in the application, high to presser foot lifter shown in Fig. 10 with Fig. 8 The structure chart of degree adjusting mechanism is compared, and the driving crank 32 is K-J-I, and adapter 34 is I-H, and swing rod 40 is H-G- F, connecting pin 72 are F, and the second sliding slot 714 on the second guide-rail plate arm 712 is F-M, and mounting bracket 73 is P-Q, are adjusted Knob 80 is O-N, and the knob 83 in adjusting knob 80 is O, and the eccentric axial portion 841 in adjusting knob 80 is N, transmission Part 50 is F-E, and presser feet lifting and swinging plate is E-A-B, and presser feet lifting linking member 63 is B-C, and presser bar 61 is C-D, and J is The second fixation the swing pivot O2, G for being driving crank 32 is that the first fixation swing pivot O1, A of swing rod 40 is presser feet liter Drop oscillating rod 62 the 3rd fixes swing pivot O3.As can be seen from Figure 13：When swing rod 40 (H-G-F) crank 32 (K-J-I) driven When driving and swinging with adapter 34 (I-H), connecting pin 72 (F) can be slided along the second sliding slot 714 (F-M)；And the second sliding slot The height of guide-rail plate 71 where 714 (F-M) can be moved up and down by adjusting knob 80 (O-N) along mounting bracket 73 (P-Q), When the guide-rail plate 71 where the second sliding slot 714 (F-M) is in a high position, the amplitude of fluctuation of F-G longer, F point is also larger, then driving member With regard to larger, presser foot lifter height is just higher for the formation that 50 (F-E) driving presser bars 61 (C-D) are moved up or moved down；On the contrary, when second For guide-rail plate 71 where sliding slot 714 (F-M) in low level, F-G is shorter, and the amplitude of fluctuation of F points is also smaller, then 50 (F- of driving member E the formation for) presser bar 61 (C-D) being driven to move up or move down is just smaller, and presser foot lifter height is just than relatively low；After adjusting, N point quilts It locks, presser foot lifter is highly kept fixed, and in other words, only when needing to adjust presser foot lifter height, just needs to change N points, F-M Highly, under remaining state, the height of N points and F-M are all kept fixed.The shape of second sliding slot 714 (F-M) can be arc Line, spline curve, straight line or oblique line etc., as long as presser foot lifter height adjustment mechanism can meet requirement.The connecting pin The cell wall of 72F and the second sliding slot 714 (F-M) on the second guide-rail plate arm 712 can contact directly, can also be by connecting pin 72 periphery covers a rotatable sliding block and realizes mediate contact.

Further, in the schematic diagram of the presser foot lifter height adjustment mechanism shown in Figure 13, where the second sliding slot 714F-M The height and position of guide-rail plate 71 is controlled by external action point N, in the presser foot lifter height adjustment assembly 70 shown in Figure 13 N points by Prosecutor formula is：It is realized, can also be realized by other means by the eccentric axial portion 841 of the adjusting knob 80；Such as： In presser foot lifter height adjustment assembly 70 shown in Figure 14, the controlled way of N points is：It is realized by threaded adjusting；Alternatively, Figure 15 and In presser foot lifter height adjustment assembly 70 shown in Figure 16, the controlled way of N points is：It is realized by spanner T-O-N, O is spanner Fixation swing pivot, T ends are located at the outside of casing 10, pull the T ends of spanner, you can the N-terminal of spanner is driven to move up or move down, Realize that presser foot lifter height is adjusted.

Further, as depicted in figure 10 and figure 13, the rotating member 31 has center of rotation L, the cam on rotating member 31 Circumferential surface 311 includes the first constant arc section 313 of diameter, the second arc section 314 that diameter gradually increases and diameter and gradually subtracts Small three-arc section 315, the second arc section 314 and three-arc section 315 are eccentric in the center of rotation L of rotating member 31, i.e., and Two arc sections 314 and three-arc section 315 are eccentric in the output shaft of driving motor 20, and the first arc section 313 and driving motor 20 output shaft is arranged concentrically, and the first arc section 313, the second arc section 314 and three-arc section 315 are sequentially connected, and second Arc section 314 and three-arc section 315 are symmetrical arranged.When roller 33 is in contact with the first arc section 313 of cam circumferential surface 311 When, driving crank 32 is failure to actuate, and presser feet is the state put down, and in this state, lockstitch button holder performs sewing action and trimming action. When roller 33 is in contact with the second arc section 314 of cam circumferential surface 311, driving crank 32 is suitable around the second fixation swing pivot O2 Hour hands are swung, and driving crank 32 drives swing rod 40 to fix swing pivot O1 counter-clockwise swings, swing rod around first by adapter 34 40 drive presser feet lifting and swinging bar 62 to fix swing pivot O3 counter-clockwise swings around the 3rd by driving member 50, in the second guide groove 641 and sliding block 651 cooperate under the action of presser feet lifting linking member 63 and stent 65 is driven to move upwardly together, drive presser bar 61 and presser feet synchronously move up, realize presser foot lifter.When roller 33 is in contact with the three-arc section 315 of cam circumferential surface 311 When, driving crank 32 fixes swing pivot O2 counter-clockwise swings around second, and driving crank 32 drives swing rod 40 by adapter 34 Swing pivot O1 clockwise oscillations are fixed around first, swing rod 40 drives presser feet lifting and swinging bar 62 solid around the 3rd by driving member 50 Fixed pendulum activity supporting point O3 clockwise oscillations drive presser feet lifting to connect under the action of the second guide groove 641 and sliding block 651 cooperate Bar 63 and stent 65 move downwardly together, and presser bar 61 and presser feet is driven synchronously to move down, and realization bleeds off pressure foot.Therefore, One arc section 313 is presser foot lifter idle stroke section, and the second arc section 314 is presser foot lifter trip segment, and three-arc section 315 is to bleed off pressure foot Trip segment.

In conclusion this application involves can fast clutch adjusting knob 80 have fast clutch and auto-lock function, energy Operator is enough made quickly and easily to adjust presser foot lifter height.So the present invention effectively overcomes various shortcoming of the prior art And has high industrial utilization.

The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe Know the personage of this technology all can carry out modifications and changes under the spirit and scope without prejudice to the present invention to above-described embodiment.Cause This, those of ordinary skill in the art is complete without departing from disclosed spirit and institute under technological thought such as Into all equivalent modifications or change, should by the present invention claim be covered.

Claims (10)

1. it is a kind of can fast clutch adjusting knob, it is characterised in that：Including the fixed adjusting limiting plate (81) in position, rotatably Ground is threaded through the shaft (82) adjusted in limiting plate (81), is fixed on the knob (83) of shaft (82) one end, is fixed on shaft (82) regulating wheel (84) of the other end and the spring (85) between knob (83) and adjusting limiting plate (81), the bullet Spring (85) is in compressive state, and the regulating wheel (84) is equipped with spacing teat towards the end face for adjusting limiting plate (81), adjusts Section wheel (84) is equipped with the eccentric axial portion (841) with shaft (82) eccentric setting backwards to the other end for adjusting limiting plate (81), Offer on adjusting limiting plate (81) towards regulating wheel (84) and with the matched /V recess portion of spacing teat；When pressing is revolved During button (83), the spacing teat on the regulating wheel (84) is separated with adjusting the /V recess portion on limiting plate (81), knob (83) by shaft (82) regulating wheel (84) is driven to rotate；When unclamping knob (83), the /V on the regulating wheel (84) is dashed forward Portion is engaged with adjusting the /V recess portion on limiting plate (81), adjusting knob (80) self-locking.

2. adjusting knob according to claim 1, it is characterised in that：A position is further included to fix and set graduated quarter Scale disk (86), between the scale bidding quotation (86) is located at knob (83) and adjusts limiting plate (81), scale bidding quotation is opened on (86) The through hole (861) passed through equipped with appearance spring (85) and shaft (82).

3. adjusting knob according to claim 1, it is characterised in that：Knob (83) direction adjusts limiting plate (81) End face, which is equipped with, is oriented to axle portion (831), and the spring (85) is sleeved in shaft (82), and one end of spring (85) is sleeved on knob (83) in guiding axle portion (831).

4. adjusting knob according to claim 1, it is characterised in that：Spacing teat on the regulating wheel (84) is a limit Position bolt (842), the /V recess portion adjusted on limiting plate (81) is multiple limit holes (811)；When unclamping knob (83), The end of the limit bolt (842) is inserted in a limit hole (811) in multiple limit holes (811) Nei.

5. adjusting knob according to claim 4, it is characterised in that：The limiting plate (81) that adjusts is towards regulating wheel (84) End face be equipped with two backing pins (812), two backing pins (812) respectively positioned at /V recess portion both ends at, for limiting State the rotation of limit bolt (842).

6. adjusting knob according to claim 1, it is characterised in that：Spacing teat on the regulating wheel (84) is a tooth Wheel portion (843), the /V recess portion adjusted on limiting plate (81) is a gear grooved being adapted with gear part (843)；

When unclamping knob (83), the gear part (843) is located in gear grooved.

7. adjusting knob according to claim 1, it is characterised in that：Spacing teat on the regulating wheel (84) is more than one Side shape portion (844), the /V recess portion adjusted on limiting plate (81) is a polygon being adapted with polygonal portion (844) Slot；When unclamping knob (83), the polygonal portion (844) is located in polygon groove.

8. a kind of presser foot lifter height adjustment mechanism, in casing (10), it is characterised in that：The presser foot lifter height adjusts machine Structure includes presser foot lifter height adjustment assembly (70), the presser foot lifter drive component (30) in casing (10), mounted on casing (10) swing rod (40) of swing pivot (O1), the driving member extended along casing (10) length direction are fixed in and with first (50) the presser foot lifter executive module (60) and in casing (10) has pressure in the presser foot lifter executive module (60) Foot lever (61), the presser foot lifter drive component (30) be connected with one end of swing rod (40), drive one end of swing rod (40) are swung, One end of the other end and driving member (50) of the swing rod (40) is hinged, the other end and the presser foot lifter executive module of driving member (50) (60) it is connected, presser bar (61) is driven to move up or move down, the presser foot lifter height adjustment assembly (70) includes such as claim 1-7 any one of them can fast clutch adjusting knob (80), it is described adjusting limiting plate (81) be fixed on the interior of casing (10) On wall, the knob (83) is located at the outside of casing (10)；Regulating wheel (84) is driven when pressing knob (83), by shaft (82) During rotation, the eccentric axial portion (841) makes swing rod (40) and the hinge joint of driving member (50) move up or move down.

9. presser foot lifter height adjustment mechanism according to claim 8, it is characterised in that：The presser foot lifter height adjustment assembly (70) guide-rail plate moving up and down (71) and connecting pin (72) are further included, the guide-rail plate (71) has what is be arranged in parallel First guide-rail plate arm (711) and the second guide-rail plate arm (712), the second guide-rail plate arm (712), driving member (50) The other end of one end and swing rod (40) is hinged by the connecting pin (72), is offered in the swing rod (40) along swing rod (40) the first sliding groove (41) of length direction extension, the second guide-rail plate arm (712) are offered along the second guide-rail plate arm The second sliding slot (714) of portion (712) length direction extension, the connecting pin (72) are threaded through the first sliding groove (41) and the second sliding slot (714) in；The extended along first guide-rail plate arm (711) length direction is offered on the first guide-rail plate arm (711) Three sliding slots (715), the eccentric axial portion (841) are threaded through in the 3rd sliding slot (715).

10. presser foot lifter height adjustment mechanism according to claim 9, it is characterised in that：The presser foot lifter height adjusting group Part (70) further includes mounting bracket (73), the mounting bracket (73) include mounting bracket fixed part (731) mutually fixed with casing (10), with And the mounting bracket guide part (732) of the first guide groove (733) extended up and down is offered, the guide-rail plate (71), which also has, to be located at Guide-rail plate body part (713) between first guide-rail plate arm (711) and the second guide-rail plate arm (712), the guide-rail plate sheet Guide blot (74) is fixed in body portion (713), the guide blot (74) is threaded through the first of mounting bracket guide part (732) and leads Into slot (733).