CN206266841U - A kind of upper trimming drive mechanism and lockstitch button holder - Google Patents

A kind of upper trimming drive mechanism and lockstitch button holder Download PDF

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Publication number
CN206266841U
CN206266841U CN201621295224.0U CN201621295224U CN206266841U CN 206266841 U CN206266841 U CN 206266841U CN 201621295224 U CN201621295224 U CN 201621295224U CN 206266841 U CN206266841 U CN 206266841U
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China
Prior art keywords
trimming
cam
radius
drive
section
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CN201621295224.0U
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Chinese (zh)
Inventor
谭炜军
蔡锦飚
严文进
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Bullmer Electromechanical Technology Co Ltd
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Bullmer Electromechanical Technology Co Ltd
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Priority to CN201621295224.0U priority Critical patent/CN206266841U/en
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Abstract

The utility model provides a kind of upper trimming drive mechanism and lockstitch button holder, for being connected with upper trimming executive module, upper trimming executive module includes the first rocking bar, the second rocking bar and upper cutting assemblies, and upper trimming drive mechanism includes trimming group of drive rods in trimming group of drive rods and second on motor, driving cam, first;First cam channel and the second cam channel of closed curve shape are offered in driving cam;Trimming group of drive rods is provided with trimming roller on first in the first cam channel of embedded driving cam on first, and the end of trimming group of drive rods is hinged with the first rocking bar on first;Trimming group of drive rods is provided with trimming roller on second in the second cam channel of embedded driving cam on second, and the end of trimming group of drive rods is hinged with the second rocking bar on second.Motor drives driving cam to rotate one week, you can trimming executive module completes a trimming circulation in driving, has been capable of achieving multiple mechanisms and has shared a driving cam, with reduces cost, simplifies structure.

Description

A kind of upper trimming drive mechanism and lockstitch button holder
Technical field
The utility model is related to a kind of garment sewing equipment, more particularly to a kind of upper trimming drive mechanism and lockstitch button holder.
Background technology
Lockstitch button holder is the type in industrial sewing machine, belongs to extraordinary machine, is mainly used in the button processed in all kinds of dress ornaments Hole.Thread cutting mechanism, foot lifting mechanism etc. mainly are configured with lockstitch button holder, wherein, thread cutting mechanism is divided into by upper trimming driving machine again Upper thread cutting mechanism and the lower thread cutting mechanism by the driving of lower trimming drive mechanism that structure drives, upper thread cutting mechanism are used for shear plane Line, lower thread cutting mechanism is used to cut bottom line.At present, in the market lockstitch button holder upper trimming drive mechanism is main by upper trimming cam Constituted with group of drive rods, upper trimming cam does oscillating traverse motion, i.e.,:Motor drives the upper trimming in upper trimming drive mechanism convex Wheel swings back and forth according to certain beat and rule, realizes the control to upper thread cutting mechanism.Although this upper trimming driving method Trimming can be realized, but, because upper trimming cam is to do oscillating traverse motion, therefore it is unfavorable for and other mechanisms in lockstitch button holder (than following thread cutting mechanism, foot lifting mechanism etc.) shares a motor, so as to cause each mechanism in lockstitch button holder respectively by one Motor drives, therefore high cost, and structure is extremely complex, thus also results in lockstitch button holder volume more huge, not compact.
Utility model content
The shortcoming of prior art in view of the above, the purpose of this utility model is to provide a kind of upper trimming driving machine Structure, it realizes that a upper trimming is circulated for one week using a cam rotation, so as to reduces cost, simplify the internal structure of an organization.
To achieve the above object, the utility model provides a kind of upper trimming drive mechanism, for and upper trimming executive module Be connected, the upper trimming executive module include the first rocking bar, the second rocking bar and the upper cutting assemblies for cutting upper thread, it is described on Trimming drive mechanism is driven including trimming on motor, the driving cam that rotation is directly or indirectly driven by motor, first Trimming group of drive rods in lever group and second;Offered in the driving cam closed curve shape the first cam channel and Second cam channel, first cam channel and the second cam channel all include the upper trimming that is sequentially connected of head and the tail cut across section, Upper trimming section to be cut, upper stitch scissors line segment and upper trimming reset section;Trimming group of drive rods is provided with rotatably on described first Trimming roller on first, slides on described first in first cam channel of trimming roller insertion driving cam and with the first cam Groove is engaged, on described first the end of trimming group of drive rods be hinged with the first rocking bar, for controlling opening for upper cutting assemblies Close;Trimming group of drive rods is provided with trimming roller on rotatable second on described second, trimming roller insertion on described second It is engaged in second cam channel of driving cam and with the second cam channel, the end of trimming group of drive rods on described second Be hinged with the second rocking bar, for controlling walking for upper cutting assemblies.
Preferably, the motor mounting plate also fixed including a position, the motor is fixed under motor mounting plate End face, the driving cam is rotatably positioned in the top of motor mounting plate.
Further, trimming group of drive rods includes that trimming on first drives first that crank and bending extend on described first Upper trimming connecting rod, trimming drives one end of crank and motor mounting plate to be hinged, trimming on first is driven crank on described first Swing pivot is fixed with first, trimming drives one end of trimming connecting rod on the other end and first of crank mutually to cut with scissors on described first Connect, the other end of trimming connecting rod is hinged with first rocking bar on first, and trimming roller is rotatably mounted on described first Trimming is driven on crank on first.
Further, trimming group of drive rods includes that trimming on second drives second that crank and bending extend on described second Upper trimming connecting rod, trimming drives one end of crank and motor mounting plate to be hinged, trimming on second is driven crank on described second Swing pivot is fixed with second, trimming drives one end of trimming connecting rod on the other end and second of crank mutually to cut with scissors on described second Connect, the other end of trimming connecting rod is hinged with second rocking bar on second, and trimming roller is rotatably mounted on described second Trimming is driven on crank on second.
Preferably, first cam channel and the second cam channel are opened in the upper surface and lower end of driving cam respectively On face.
Further, the Changing Pattern of the first cam channel radius is:The radius that upper trimming cuts across section first gradually subtracts Gradually increase after small, upper trimming gradually increases after the radius for cutting section is first gradually reduced, the radius of upper stitch scissors line segment gradually subtracts Small and tail end has the radius minimum value of the first cam channel, gradually increases after the radius of upper trimming reset section is first constant.
Further, the Changing Pattern of the second cam channel radius is:Upper trimming cut across section radius it is first constant after It is gradually reduced, upper trimming is constant after the radius for cutting section first gradually increases, and the radius of upper stitch scissors line segment gradually increases and tail end Radius maximum with the second cam channel, the radius of upper trimming reset section is gradually reduced.
Preferably, the vertical installation of the motor, with the motor output shaft for extending up and down, the motor output shaft is worn Mutually fixed with driving cam after crossing motor mounting plate.
Further, first cam channel and the second cam channel also all include upper trimming idle stroke section, it is described on Trimming idle stroke section is cut across between section positioned at upper trimming reset section and upper trimming, and the radius of the upper trimming idle stroke section is constant.
The utility model also provides a kind of lockstitch button holder, with casing, upper trimming as described above is provided with the casing Drive mechanism.
As described above, the upper trimming drive mechanism that is related to of the utility model and lockstitch button holder, have the advantages that:
In the application, driving cam is driven to rotate one week by motor, you can by trimming group of drive rods on first With second on the collective effect of trimming group of drive rods, trimming executive module completes a trimming circulation in driving, convex due to driving Wheel does 360 degree of rotational motions, rather than swings, therefore other mechanisms in lockstitch button holder (than following thread cutting mechanism, foot lifting mechanism etc.) Can be driven by driving cam, realize multiple mechanisms and share a driving cam, cost, simplification are substantially reduced so as to reach The purpose of structure, therefore the structure of lockstitch button holder is compacter, is conducive to reducing machine volume, improves overall aesthetic degree.
Brief description of the drawings
Fig. 1 is the structural representation of lockstitch button holder in the application.
Fig. 2 is the structural representation of upper trimming drive mechanism in the application.
Fig. 3 is the structural representation of trimming group of drive rods on first in Fig. 2.
Fig. 4 is the structural representation of trimming group of drive rods on second in Fig. 2.
Fig. 5 is the structural representation of the first cam channel in Fig. 2.
Fig. 6 is the structural representation of the second cam channel in Fig. 2.
Fig. 7 is the radius change curve map of the first cam channel and the second cam channel in the application.
Component label instructions
Trimming executive module on 10
11 first rocking bars
12 second rocking bars
Cutting assemblies on 13
20 motors
30 driving cams
31 first cam channels
32 second cam channels
Trimming cuts across section on 33
Trimming section to be cut on 34
Stitch scissors line segment on 35
Trimming reset section on 36
Trimming idle stroke section on 37
Trimming group of drive rods on 40 first
Trimming roller on 41 first
Trimming drives crank on 42 first
Trimming connecting rod on 43 first
Trimming group of drive rods on 50 second
Trimming roller on 51 second
Trimming drives crank on 52 second
Trimming connecting rod on 53 second
60 motor mounting plates
70 axial screws
80 casings
Specific embodiment
Implementation method of the present utility model is illustrated by particular specific embodiment below, those skilled in the art can be by this Content disclosed by specification understands other advantages of the present utility model and effect easily.
It should be clear that structure, ratio, size depicted in this specification institute accompanying drawings etc., is only used to coordinate specification to be taken off The content shown, so that those skilled in the art understands and reads, is not limited to the enforceable restriction bar of the utility model Part, therefore do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size are not influenceing Under effect that the utility model can be generated and the purpose to be reached, all should still fall in the technology disclosed in the utility model In the range of Rong get Neng is covered.Meanwhile, in this specification it is cited as " on ", D score, "left", "right", " centre " and " one " Deng term, be merely convenient to narration understand, and be not used to limit the enforceable scope of the utility model, its relativeness It is altered or modified, under without essence change technology contents, when being also considered as the enforceable category of the utility model.
In following examples, 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 fore-and-aft direction, and the short transverse of lockstitch button holder is defined as into above-below direction.
The application provides a kind of upper trimming drive mechanism, as depicted in figs. 1 and 2, for being held with the upper trimming in lockstitch button holder Row component 10 is connected, and the structure of the upper trimming executive module 10 belongs to prior art, and concrete structure can be found in and be stitched by Jack The lockstitch button holder JK-1790 types that Ren Ji limited companies are produced.In general, the upper trimming executive module 10 in lockstitch button holder Upper cutting assemblies 13 including the first rocking bar 11, the second rocking bar 12 and for cutting upper thread, the upper end of the first rocking bar 11 and second is shaken The upper end of bar 12 is all articulated with the casing 80 of lockstitch button holder, the middle hypomere of the middle hypomere of the first rocking bar 11 and the second rocking bar 12 all with it is upper Trimming drive component is connected, therefore the first rocking bar 11 and the second rocking bar 12 are all driven by upper trimming drive component and swung, so as to drive Dynamic upper cutting assemblies 13 are acted, and the action of upper cutting assemblies 13 includes folding and front and rear and walking of moving left and right.Upper trimming Executive module 10 is located at the outside of lockstitch button holder casing 80, and positioned at the lower section of casing 80 and the top of seam platform.
Further, as shown in Figures 2 to 6, the upper trimming drive mechanism is arranged in the casing 80 of lockstitch button holder, including Motor 20, by motor 20 directly or indirectly drive rotate driving cam 30, first on trimming group of drive rods 40, with And trimming group of drive rods 50 on second;The driving cam 30 is used for output campaign track, therefore envelope is offered in driving cam 30 First cam channel 31 and the second cam channel 32 of closed curve shape, the cam channel 32 of first cam channel 31 and second is all The upper trimming being sequentially connected including head and the tail cuts across section 33, upper trimming section 34 to be cut, upper stitch scissors line segment 35 and upper trimming reset section 36.Trimming roller 41 on one rotatable first is connected with described first in trimming group of drive rods 40, the trimming rolling on first Son 41 is embedded in the first cam channel 31 of driving cam 30 and is engaged with the first cam channel 31, for by driving cam The movement locus of 30 outputs passes to trimming group of drive rods 40 on first, the output end of trimming group of drive rods 40 on described first Be hinged with the first rocking bar 11, the folding for controlling upper cutting assemblies 13.Connected in trimming group of drive rods 50 on described second Have trimming roller 51 on rotatable second, this on second trimming roller 51 be embedded in the second cam channel 32 of driving cam 30 In and be engaged with the second cam channel 32, driven for the movement locus that driving cam 30 is exported to be passed into trimming on second Lever group 50, on described second the output end of trimming group of drive rods 50 and the second rocking bar 12 be hinged, for controlling upper scissors Component 13 walks.
In operation process, motor 20 drives 30 turns of driving cam to upper trimming drive mechanism with said structure It is dynamic, driving cam 30 drive the first cam channel 31 relative to first on trimming roller 41 rotate and drive the second cam channel 32 relative to second on trimming roller 51 rotate, i.e.,:So that trimming roller 41 is relatively along the first cam channel 31 on first Extend track movement, trimming roller 51 is relatively moved along the extension track of the second cam channel 32 on second, due to first convex The change of the orbital radius of 31 and second cam channel of wheel chute 32, therefore trimming roller 41 drives trimming drive rod on first on first Group 40 is acted, and trimming roller 51 drives trimming group of drive rods 50 on second to act on second, so as to drive upper trimming to perform jointly Upper cutting assemblies 13 in component 10 are acted, make cutting assemblies 13 perform successively cut across action, wait to cut action, trimming action and Homing action.Preferably, the cam channel 32 of first cam channel 31 and second is opened in the upper end of driving cam 30 respectively On face and lower surface;Certainly, both positions can also be exchanged mutually.
Specifically, when seam is played, trimming roller 51 is all located at trimming to lockstitch button holder on trimming roller 41 and second on first Cut across at the head end of section 33, upper cutting assemblies 13 are closed and clamp upper thread, upper cutting assemblies 13 are located at initial position, first Upper trimming roller 41 in the first cam channel 31 on trimming cut across at the head end of section 33, trimming roller 51 is convex second on second Upper trimming is cut across at the head end of section 33 in wheel chute 32.Started seam after, on first in trimming group of drive rods 40 first on cut Upper trimming of the line roller 41 relatively in the first cam channel 31 is moved in cutting across section 33, on second in trimming group of drive rods 50 Second on upper trimming of the trimming roller 51 relatively in the second cam channel 32 cut across section 33 in move, make cutting assemblies 13 open, unclamp upper thread, and drive upper cutting assemblies 13 to be moved to position to be cut.Afterwards, on first in trimming group of drive rods 40 First on move in the section 34 to be cut of the upper trimming relatively in the first cam channel 31 of trimming roller 41, trimming drives on second In lever group 50 second on move in the section 34 to be cut of the upper trimming relatively in the second cam channel 32 of trimming roller 51, drive Dynamic upper cutting assemblies 13 are moved to trimming position.Then, on first in trimming group of drive rods 40 first on the phase of trimming roller 41 Moved in the upper stitch scissors line segment 35 in the first cam channel 31 over the ground, on second in trimming group of drive rods 50 second on cut Moved in the upper stitch scissors line segment 35 relatively in the second cam channel 32 of line roller 51, cutting assemblies 13 are closed in driving, Upper thread is cut, and the upper thread after cutting is clamped.Finally, on first in trimming group of drive rods 40 first on trimming roller Moved in 41 upper trimming reset section 36 relatively in the first cam channel 31, on second in trimming group of drive rods 50 second Moved in upper trimming roller 51 upper trimming reset section 36 relatively in the second cam channel 32, cutting assemblies 13 are pressed from both sides in driving Hold upper thread movement and be retracted into its initial position, complete a trimming circulation for upper trimming action, and prepare to start next cutting Line is circulated.The action sequence of the upper cutting assemblies 13 is:Origin → open → wait to cut → trimming → Aligning control.
As shown in the above:The application drives driving cam 30 to rotate one week by motor 20, you can by the The collective effect of trimming group of drive rods 50 in trimming group of drive rods 40 and second on one, trimming executive module 10 completes one in driving The circulation of individual trimming, because driving cam 30 does 360 degree of rotational motions, rather than swings, thus other mechanisms in lockstitch button holder (ratio is as follows Thread cutting mechanism, foot lifting mechanism etc.) can be driven by driving cam 30, realize multiple mechanisms and share a driving cam, So as to reach the purpose for substantially reducing cost, simplifying structure, therefore the structure of lockstitch button holder is compacter, is conducive to reducing machine body Product, improves overall aesthetic degree.
Preferably, as shown in Fig. 2 the upper trimming drive mechanism also includes the motor mounting plate 60 that a position is fixed, should Motor mounting plate 60 is located in casing 80 and is fixed on casing 80, and the motor 20 is fixed under motor mounting plate 60 End face, the driving cam 30 is rotatably positioned in the top of motor mounting plate 60.The vertical installation of the motor 20, therefore drive Dynamic motor 20 has a motor output shaft for extending up and down, the motor output shaft through after motor mounting plate 60 with driving cam 30 It is mutually fixed so that motor 20 directly drives driving cam 30 to rotate;Simultaneously as motor 20 uses vertical installation, Therefore motor 20 can be built in casing 80, easily realize that the multiple mechanisms in lockstitch button holder share a motor 20, from And cause mechanism compacter and effectively reduce the cost of the whole machine of lockstitch button holder.
Further, as shown in figure 3, trimming group of drive rods 40 includes that trimming drives the He of crank 42 on first on described first Trimming connecting rod 43 on the first of bending extension, trimming drives the front end of crank 42 to be hinged with motor mounting plate 60 on described first, Make on first trimming drive the crank 42 to have first to fix swing pivot O1, on described first trimming drive the rear end of crank 42 with The left end of trimming connecting rod 43 is hinged on first, and the right-hand member of trimming connecting rod 43 is hinged with first rocking bar 11 on first, institute Trimming roller 41 on first is stated to be installed in rotation on first under trimming driving crank 42 by about one pin for extending On end face., close to a spatial four-bar mechanism, trimming roller 41 is relative on first for trimming group of drive rods 40 on described first When first cam channel 31 of driving cam 30 is moved, trimming drives crank 42 to fix swing pivot O1 around first and produces on first The swing of raw certain amplitude, so as to drive the rocking bar 11 of trimming connecting rod 43 and first on first to swing, and then drives upper cutting assemblies 13 perform relevant action.Preferably, on described first trimming to drive crank 42 to be driven with trimming on motor mounting plate 60, first bent Trimming connecting rod 43 is all hinged by about one axial screw 70 for extending on handle 42 and first, trimming connecting rod 43 and on first One rocking bar 11 is hinged by a front and rear axial screw 70 for extending.
Further, as shown in figure 4, trimming group of drive rods 50 includes that trimming drives the He of crank 52 on second on described second Bending extend second on trimming connecting rod 53, on described second trimming drive front end and the motor mounting plate 60 of crank 52 to be hinged, Make on second trimming drive the crank 52 to have second to fix swing pivot O2, on described second trimming drive the rear end of crank 52 with The left end of trimming connecting rod 53 is hinged on second, and the right-hand member of trimming connecting rod 53 is hinged with second rocking bar 12 on second, institute State trimming roller 51 on second trimming on second is installed in rotation on by about one pin for extending and drive the upper of crank 52 On end face.Trimming group of drive rods 50 is also close to a spatial four-bar mechanism on described second, the phase of trimming roller 51 on second When the second cam channel 32 for driving cam 30 is moved, trimming drives crank 52 to fix swing pivot O2 around second on second The swing of certain amplitude is produced, so as to drive the rocking bar 12 of trimming connecting rod 53 and second on second to swing, and then upper scissors group is driven Part 13 performs relevant action.Preferably, trimming drives crank 52 to be driven with trimming on motor mounting plate 60, second on described second Trimming connecting rod 53 is all hinged by about one axial screw 70 for extending on crank 52 and second, on second trimming connecting rod 53 with Second rocking bar 12 is hinged by a front and rear axial screw 70 for extending.
Preferably, the upper trimming drive mechanism shares the motor 20 and drive with the foot lifting mechanism in lockstitch button holder Moving cam 30, therefore, as shown in Figure 5 and Figure 6, the cam channel 32 of first cam channel 31 and second also all includes upper trimming Idle stroke section 37, the upper trimming idle stroke section 37 is located at upper trimming reset section 36 and upper trimming is cut across between section 33, it is described on The radius of trimming idle stroke section 37 is constant.Therefore, when on first in trimming group of drive rods 40 on first trimming roller 41 it is relative Ground moves in the upper trimming idle stroke section 37 in the first cam channel 31, on second in trimming group of drive rods 50 second on cut When being moved in the upper trimming idle stroke section 37 relatively in the second cam channel 32 of line roller 51, trimming group of drive rods on first Trimming group of drive rods 50 is all failure to actuate on 40 and second, therefore upper trimming drive mechanism is also failure to actuate, and upper cutting assemblies 13 are also motionless Make, but the foot lifting mechanism of lockstitch button holder is acted, therefore upper trimming idle stroke section 37 is the presser foot lifter trip segment of lockstitch button holder.
As shown in fig. 7, the Changing Pattern of the radius of the first cam channel 31 is:Upper trimming cut across section 33 radius first by Gradually increase after decrescence small, upper trimming gradually increases after the radius for cutting section 34 is first gradually reduced, the half of upper stitch scissors line segment 35 Footpath is gradually reduced and tail end has the radius minimum value of the first cam channel 31, therefore the gradient of upper stitch scissors line segment 35 is larger, on Gradually increase after the radius of trimming reset section 36 is first constant, the radius of upper trimming idle stroke section 37 is constant.Second cam is slided The Changing Pattern of the radius of groove 32 is:Upper trimming cut across section 33 radius it is first constant after be gradually reduced, the half of upper trimming section 34 to be cut Footpath is constant after first gradually increasing, and the radius of upper stitch scissors line segment 35 gradually increases and tail end has the half of the second cam channel 32 Footpath maximum, therefore the gradient of upper stitch scissors line segment 35 is larger, the radius of upper trimming reset section 36 is gradually reduced, upper trimming idle stroke The radius of section 37 is constant.
The application also provides a kind of lockstitch button holder, as shown in figure 1, lockstitch button holder has casing 80, is provided with the casing 80 Upper trimming drive mechanism as described above.
In sum, the utility model effectively overcomes various shortcoming of the prior art and has high industrial exploitation value Value.
Above-described embodiment only illustrative principle of the present utility model and its effect are new not for this practicality is limited Type.Any person skilled in the art can all be carried out under without prejudice to spirit and scope of the present utility model to above-described embodiment Modifications and changes.Therefore, such as those of ordinary skill in the art without departing from the essence disclosed in the utility model All equivalent modifications completed under god and technological thought or change, should be covered by claim of the present utility model.

Claims (10)

1. a kind of upper trimming drive mechanism, for being connected with upper trimming executive module (10), the upper trimming executive module (10) the upper cutting assemblies (13) including the first rocking bar (11), the second rocking bar (12) and for cutting upper thread, it is characterised in that:It is described Upper trimming drive mechanism includes motor (20), directly or indirectly drives the driving cam for rotating by motor (20) (30), trimming group of drive rods (50) in trimming group of drive rods (40) and second on first;Opened up on the driving cam (30) There are first cam channel (31) and the second cam channel (32) of closed curve shape, first cam channel (31) and second convex Wheel chute (32) all includes that the upper trimming that head and the tail are sequentially connected cuts across section (33), upper trimming section to be cut (34), upper stitch scissors line segment And upper trimming reset section (36) (35);Trimming group of drive rods (40) is provided with trimming roller on rotatable first on described first (41), on described first in first cam channel (31) of the embedded driving cam (30) of trimming roller (41) and with the first cam Chute (31) is engaged, on described first the end of trimming group of drive rods (40) be hinged with the first rocking bar (11), for controlling The folding of upper cutting assemblies (13);Trimming group of drive rods (50) is provided with trimming roller on rotatable second on described second (51), on described second in second cam channel (32) of the embedded driving cam (30) of trimming roller (51) and with the second cam Chute (32) is engaged, on described second the end of trimming group of drive rods (50) be hinged with the second rocking bar (12), for controlling Upper cutting assemblies (13) walk.
2. upper trimming drive mechanism according to claim 1, it is characterised in that:Also include that the motor fixed a position is installed Plate (60), the motor (20) is fixed on the lower surface of motor mounting plate (60), and the driving cam (30) is rotationally Positioned at the top of motor mounting plate (60).
3. upper trimming drive mechanism according to claim 2, it is characterised in that:Trimming group of drive rods (40) on described first Including trimming on first drive that crank (42) and bending extend first on trimming connecting rod (43), trimming drives song on described first One end of handle (42) is hinged with motor mounting plate (60), makes trimming on first drive crank (42) to fix swing pivot with first (O1), trimming drives one end of trimming connecting rod (43) on the other end and first of crank (42) to be hinged on described first, and first The other end of upper trimming connecting rod (43) is hinged with first rocking bar (11), and trimming roller (41) is rotationally on described first Driven on crank (42) installed in trimming on first.
4. upper trimming drive mechanism according to claim 2, it is characterised in that:Trimming group of drive rods (50) on described second Including trimming on second drive that crank (52) and bending extend second on trimming connecting rod (53), trimming drives song on described second One end of handle (52) is hinged with motor mounting plate (60), makes trimming on second drive crank (52) to fix swing pivot with second (O2), trimming drives one end of trimming connecting rod (53) on the other end and second of crank (52) to be hinged on described second, and second The other end of upper trimming connecting rod (53) is hinged with second rocking bar (12), and trimming roller (51) is rotationally on described second Driven on crank (52) installed in trimming on second.
5. the upper trimming drive mechanism according to claim any one of 1-4, it is characterised in that:First cam channel (31) it is opened in respectively on the upper surface and lower surface of driving cam (30) with the second cam channel (32).
6. upper trimming drive mechanism according to claim 1, it is characterised in that:First cam channel (31) radius Changing Pattern is:Upper trimming cut across section (33) radius be first gradually reduced after gradually increase, the radius of upper trimming section to be cut (34) Gradually increase after being first gradually reduced, the radius of upper stitch scissors line segment (35) is gradually reduced and tail end has the first cam channel (31) radius minimum value, gradually increases after the radius of upper trimming reset section (36) is first constant.
7. upper trimming drive mechanism according to claim 1, it is characterised in that:Second cam channel (32) radius Changing Pattern is:Upper trimming cut across section (33) radius it is first constant after be gradually reduced, the radius of upper trimming section to be cut (34) first by Cumulative plus rear constant, the radius of upper stitch scissors line segment (35) gradually increases and tail end has the radius of the second cam channel (32) Maximum, the radius of upper trimming reset section (36) is gradually reduced.
8. upper trimming drive mechanism according to claim 2, it is characterised in that:The vertical installation of the motor (20), With the motor output shaft for extending up and down, the motor output shaft is mutually solid with driving cam (30) afterwards through motor mounting plate (60) It is fixed.
9. upper trimming drive mechanism according to claim 1, it is characterised in that:First cam channel (31) and second Cam channel (32) also all includes upper trimming idle stroke section (37), and upper trimming idle stroke section (37) is positioned at upper trimming reset section (36) cut across between section (33) with upper trimming, the radius of upper trimming idle stroke section (37) is constant.
10. a kind of lockstitch button holder, with casing (80), it is characterised in that:Installed in the casing (80) and appointed just like claim 1-9 Upper trimming drive mechanism described in one.
CN201621295224.0U 2016-11-29 2016-11-29 A kind of upper trimming drive mechanism and lockstitch button holder Withdrawn - After Issue CN206266841U (en)

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CN108118466A (en) * 2016-11-29 2018-06-05 拓卡奔马机电科技有限公司 A kind of upper trimming driving mechanism and lockstitch button holder
CN110281282A (en) * 2019-07-08 2019-09-27 韶关市武江区冠启自动化设备设计有限公司 Full-automatic Christmas tree pine cutter and its shearing process

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Publication number Priority date Publication date Assignee Title
CN108118466A (en) * 2016-11-29 2018-06-05 拓卡奔马机电科技有限公司 A kind of upper trimming driving mechanism and lockstitch button holder
CN108118466B (en) * 2016-11-29 2023-07-25 拓卡奔马机电科技有限公司 Go up trimming actuating mechanism and buttonholing machine
CN107475917A (en) * 2017-09-16 2017-12-15 拓卡奔马机电科技有限公司 A kind of induction mechanism and sewing machine of cam origin
CN110281282A (en) * 2019-07-08 2019-09-27 韶关市武江区冠启自动化设备设计有限公司 Full-automatic Christmas tree pine cutter and its shearing process

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