CN1600931A - Cloth cut-off appts of round head buttonhole sewing machine - Google Patents
Cloth cut-off appts of round head buttonhole sewing machine Download PDFInfo
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- CN1600931A CN1600931A CN 200410082653 CN200410082653A CN1600931A CN 1600931 A CN1600931 A CN 1600931A CN 200410082653 CN200410082653 CN 200410082653 CN 200410082653 A CN200410082653 A CN 200410082653A CN 1600931 A CN1600931 A CN 1600931A
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Abstract
A cloth cutting device of an eyelet sewing machine is provided with a cutter fixed on the frame of the sewing machine by a cutter base and a hammer supported on the frame of the sewing machine by a hammer supporting body. By the cooperation action of the cutter and the hammer, the cloth is punched with eyelets before or after forming the eyelet stitch seam. The cutting device is characterized in that an engagement adjusting mechanism is provided which can adjust the engagement by adjusting at least one mounting state of the hammer supporting body and the cutter base relative to another mounting state.
Description
Technical field
But the present invention relates to governor weight and cutting knife either party mounting position, can make interlock regulate cloth cutting device and this interlock control method thereof of the round end button holing sewing machine of oversimplifying.
Background technology
On the round end button holing sewing machine, majority is equipped with the cloth cutting device that keyhole stitch seam forms back (or before forming), carries out round end hole (buttonhole) perforation in the inboard of this stitching (or keyhole stitch seam formation reservations) on processing cloth.Traditional this cloth cutting device has: be fixed on cutting knife on the sewing machine frame of round end button holing sewing machine, movably be supported in arm component on the described sewing machine frame, be fixed on hammer on the arm component, drive the actuator of this hammer and the driving force of actuator passed to transmission mechanism of described arm component etc.
Such as disclose the cloth cutting device that records following round end button holing sewing machine in 2000 No. 210488 communiques in Japan's patent application.That is, described cloth cutting device has cutting knife, arm component, hammer, cylinder, transmission mechanism, micro-adjusting mechanism.Connecting revolving member on the piston rod of in described cylinder, equipping.Transmission mechanism by comprising this revolving member and in cam mechanism between transmission mechanism, the driving force of cylinder is passed to arm component, it is mobile that hammer is descended with arm component.The result is to carry out the perforation in round end hole on the processing cloth that is positioned between hammer and cutting knife.
In described cloth cutting device, when carrying out the perforation of round end hole, can approach finely tuning of cutting knife to hammer near limit positions.But, can not regulate with respect to the mounting position of cutting knife with respect to the mounting position or the hammer of hammer mounting position, the cutting knife of hammer and cutting knife.That is, the interlocking pattern that can not carry out cutting knife and hammer is regulated.
Therefore, when the cutting knife bearing plane of hammering into shape being urged to cutting knife,, can form the cutting knife vestige on the cutting knife bearing plane of (soft) hammer that hardness is low at (hard) cutting knife high with respect to hardness by the driving cylinder.But, on the cutting knife bearing plane of hammer, can not impartial form the occasion of cutting knife vestige or promptly produce the effective occasion of single face when the occasion of the tool bit abrasion of cutting knife, when factory's outbound or carry out interlock in the workshop making of user and regulate.This interlock regulate be by the operator use the milling tool of file etc., grinding that the cutting knife bearing plane of hammer is carried out small quantity regulates.
Carrying out in the grinding operation for interlock regulates, need be certain about grinding part and grind direction, on the cutting knife bearing plane, carrying out equalization according to this benchmark and grind according to the cutting knife vestige generation form of the cutting knife bearing plane of hammering into shape and the degree of depth of cutting knife vestige etc.Like this, the grinding operation spend plenty of time, must need the experience and the dexterity of grinding operation aspect, make grinding operation complicated.
For this reason, usually consider the tilted structure of installation of mounting position to hammer.At first on hammer, form oblong bolt insertion hole, double-screw bolt will be installed again insert and lead in the bolt insertion hole of hammering into shape, hammer is fixed on the arm component.That is, tilt with respect to the mounting position of arm component, the mounting position of hammer is installed with respect to arm component variablely by making hammer.Yet, when carrying out the perforation of round end hole, have the load of 8KN to act on hammer approximately.Like this, the fastening force of single dependence mounting screw is the mounting position that can not keep hammer by Long Circle, can misplace.And must carry out interlock continually repeatedly and regulate, exist can not practicability problem.
Summary of the invention
The object of the invention is, the grinding operation that can omit hammer is provided, and can makes hammer and cutting knife interlock regulate the cloth cutting device of the round end button holing sewing machine of oversimplifying.
The cloth cutting device of round end button holing sewing machine of the present invention has: be installed on sewing machine frame Cutter apron, be fixed on the cutting knife on the described Cutter apron; Be installed on the hammer supporting mass of described sewing machine frame and be bearing in hammer on the described hammer supporting mass, interoperation by described cutting knife and described hammer, after the formation of keyhole stitch seam or before forming, on processing cloth, carry out the perforation in round end hole, it is characterized in that, be provided with the interlock governor motion, this interlock governor motion passes through to regulate the mounting position of the mounting position of at least one side in described hammer supporting mass and the Cutter apron with respect to the opposing party, can regulate the interlocking pattern of cutting knife and hammer.
In this structure, by the interlock governor motion, can carry out interlock with respect to the opposing party's mounting position at least one side's mounting position in supporting hammer hammer supporting mass usefulness, that be installed on described sewing machine frame and the fixed cutting tool Cutter apron that use and that be installed on sewing machine frame and regulate.Like this, the effective phenomenon of single face can not take place, can be all the time form impartial cutting knife vestige on the cutting knife bearing plane of hammer, so do not need to grind the grinding operation of the trouble of cutting knife bearing plane, can improve the life-span and the durability of hammer.And, by being regulated with the interlock of cutting knife, oversimplifies by hammer, can improve the perforation operating efficiency in round end hole.
Above-mentioned occasion, described hammer can be movingly described hammer to be supported up and down, and the fine-tuning described hammer supporting mass of described interlock governor motion is with respect to the gradient of described Cutter apron.
In this structure, when carrying out interlock and regulate, only need to up and down movingly the hammer supporting mass of the type that moves up and down of supporting hammer finely tune with respect to the gradient of Cutter apron and get final product.Like this, the operator can carry out interlock simply and regulate operation, improves the operation that operation is regulated in interlock.
Above-mentioned occasion, can have the clamper component that is fixed on the described sewing machine frame, described hammer supporting mass is bearing on the described clamper component, and described interlock governor motion has: the pivot that described hammer supporting mass pivot is supported on the described clamper component props up member swingably; And be located at described pivot with described hammer supporting mass prop up pivot supporting part that member forms from the position on, and variable hammer supporting mass with respect to the eccentric component of the gradient of described clamper component.
In this structure, the hammer supporting mass props up member by pivot and can swing with respect to clamper component.Thus, when making the operation of eccentric component off-centre, the mounting position of skewed change hammer supporting mass, the interlock that can hammer into shape is regulated, so can make interlock regulate operation and the simplification of interlock governor motion.
Above-mentioned occasion, can on described hammer supporting mass, axis hole be set, described eccentric component constitutes by the benchmark axial region with the integrally formed cam pin member of eccentric axial portion, and has the 1st limiting member that described eccentric axial portion is carried out position limit, its described relatively axis hole is not become flexible; And the 2nd limiting member that described benchmark axial region is carried out position limit, the axis hole of its relative clamper component is not become flexible.
In this structure, can carry out position limit to eccentric axial portion, its described relatively axis hole is not become flexible, can carry out position limit to the benchmark axial region, the axis hole of its relative clamper component is not become flexible by the 2nd limiting member by the 1st limiting member.Like this, when the interlock of hammer is regulated,, also can realize the validation of the offset of cam pin member even the cam pin member makes the tilt quantity of hammer supporting mass that minor variations take place.
Above-mentioned occasion, it is characterized in that, insert described hammer supporting mass in the inboard of described clamper component, at least one side of the outer peripheral face of the inner peripheral surface of described clamper component and described hammer supporting mass oil sealing is set, the lubricant that is used to prevent to flow between described clamper component and described hammer supporting mass falls.
In this structure, because of can regulating, so clamper component and be embedded between wherein the hammer supporting mass and produce minim gap by making the hammer supporting mass tilt to carry out interlock.Like this, though lubricant might by this minim gap be delivered to clamper component with the hammer supporting mass sliding surface fall.But, utilize the either party's of the sliding surface that is arranged at clamper component and hammer supporting mass oil sealing, and can prevent from reliably to drop under the lubricant on the processing cloth.
And the present invention is the described cutting knife in a kind of cloth cutting device of round end button holing sewing machine and the interlock control method of described hammer, has: the Cutter apron that is installed on sewing machine frame; The 1st holding device that described Cutter apron is kept with respect to the mounting position of described sewing machine frame; Be fixed on the cutting knife on the described Cutter apron; Be installed on the hammer supporting mass of described sewing machine frame; The 2nd holding device that described hammer supporting mass is kept with respect to the mounting position of described sewing machine frame; And be bearing in hammer on the described hammer supporting mass, interoperation by described cutting knife and described hammer, after the formation of keyhole stitch seam or before forming, on processing cloth, carry out the perforation in round end hole, it is characterized in that, comprising: the operation that at least one side in described Cutter apron and the described hammer supporting mass is removed with respect to the hold mode of the mounting position of described sewing machine frame; The mounting position that makes at least one side in described Cutter apron and the described hammer supporting mass is with respect to the opposing party's mounting position and the operation that tilts; And the operation that the mounting position of at least one square neck in described Cutter apron and the described hammer supporting mass after tiltedly kept.
The simple declaration of accompanying drawing
Fig. 1 is the in-built vertical section of round end button holing sewing machine front view in the expression embodiments of the invention.
Fig. 2 is the in-built cross-sectional vertical view of expression round end button holing sewing machine.
Fig. 3 is the vertical profile front view that amplify the part of the supporting construction of cutter axis member and interlock governor motion.
Fig. 4 is the vertical view that amplify the part of the supporting construction of cutter axis member and interlock governor motion.
Fig. 5 is the vertical profile left view that amplify the part of the supporting construction of cutter axis member and interlock governor motion.
The exploded perspective view of Fig. 6 for seeing from the upper right side of clamper component and hammer supporting mass.
Fig. 7 is the cross-sectional vertical view of the 7-7 line of Fig. 3.
Fig. 8 is the cross-sectional vertical view of the 8-8 line of Fig. 3.
Figure when Fig. 9 cuts off for processing cloth, suitable with Fig. 1.
Figure when Figure 10 descends for make the cutter axis member with manual operation, suitable with Fig. 1.
Figure 11 is explanation interlock figure that regulate, suitable with Fig. 3.
Figure 12 is figure in the modification, suitable with Fig. 7.
The specific embodiment
Below with reference to Fig. 1～Figure 11 one embodiment of the invention is described.Fig. 1 is the in-built vertical profile front view of cloth cutting device of expression round end button holing sewing machine.Round end button holing sewing machine 1 has base plate 2, arm 3, socle portion 4.On the framework 1a of base plate 2, place and fixing Cutter apron 15.On this Cutter apron 15, be fixed with cutting knife 5.At this moment, cutting knife 5 is fixed to its upper end and the roughly same height of needle plate 16 that is arranged on the base plate 2.On the framework 1a of arm 3, supporting device 6 is set.Described supporting device 6 supports cutter axis member 7 up and down movingly.The bottom of this cutter axis member 7 is being fixed and is being hammered 8 into shape.The upper end of this cutter axis member 7 is connected with transmission mechanism 10.This transmission mechanism 10 is connected with the cylinder 9 of being located at socle portion 4.The driving force of this cylinder 9 passes to hammer 8 by transmission mechanism 10.Interlock governor motion 12 is set on arm 3.By this interlock governor motion 12 mounting position of hammer supporting mass 22 is tilted.But governor weight 8 with cutting knife 5 butt states is, interlocking pattern.
Below with reference to Fig. 1, Fig. 3～Fig. 6 supporting device 6 is described.
On the horizontal framework 1a of arm 3 lower position, be formed with circular installing hole 1b.Clamper component 20 roughly cylindraceous embeds among this installing hole 1b.Form the roughly installation convex edge 20a of ring-type in the bottom of clamper component 20.Clamper component 20 is embedded in the installing hole 1b from the below, is fixed on the framework 1a with a plurality of set bolts 21 from downside by convex edge 20a is installed.In the inside of described clamper component 20, insert from the below shape ground embedded hammer supporting mass 22 roughly cylindraceous.
Roughly the first half at the front and rear of this hammer supporting mass 22 forms chamfered section 22a respectively.22a is corresponding with these chamfered section, is formed with the protruding wall 20b of portion on the clamper component 20 respectively.Be embedded in the clamper component 20 in case will hammer supporting mass 22 into shape, then each chamfered section 22a is from inboard and corresponding convex edge 20b butt.Revolution to hammer supporting mass 22 limits thus.In addition, the internal diameter of clamper component 20 is a bit larger tham the external diameter of hammering supporting mass 22 into shape.
In each chamfered section 22a bottom of hammer supporting mass 22, subtend shape ground forms path pin-and-hole 22b separately.On the protruding wall 20b of portion of clamper component 20, subtend shape ground is formed with the diameter big footpath pin-and-hole 20g bigger than path pin-and-hole 22b.After will hammering supporting mass 22 embedding clamper components 20 into shape, will be with step pivot backing pin 23 to embed among pin-and-hole 22b, the 20g.Like this, hammer supporting mass 22 is that oscillation center supports swingably with respect to clamper component 20 with band step pivot backing pin 23.Band step pivot backing pin 23 is roughly cylindric, have the minor diameter part 23a corresponding with path pin-and-hole 22b and with the corresponding large-diameter portion 23b of big footpath pin-and-hole 20g.And band step pivot backing pin 23 can insert among path pin-and-hole 22b and the big footpath pin-and-hole 20g.At this moment, minor diameter part 23a inserts path pin-and-hole 22b, and large-diameter portion 23b inserts big footpath pin-and-hole 20g.
The large-diameter portion 23b that is inserted into the band step pivot backing pin 23 among pin-and-hole 22b, the 20g is fixed respectively by location Screw 24 from the top of the protruding wall 20b of portion.The result can prevent reliably with the fore-and-aft direction of step pivot backing pin 23 and becoming flexible of above-below direction.
In the embedding of the inside of hammer supporting mass 22 roughly columned cutter axis member 7 is arranged.Fixing hammer connector 25 in the bottom of this cutter axis member 7.The bottom of this hammer connector 25 is installed with removably hammers 8 into shape.
Right lower quadrant in hammer connector 25 fronts is provided with alignment pin.Front central authorities at hammer connector 25 are provided with bar 26 by adjustment screw 27.Bottom at described connecting rod 26 forms the hook 26a of portion.On the other hand, form holding section 8b in the front of hammer 8, the bottom of described hammer 8 forms cutting knife and bears platform 8c.When will hammering 8 upper end into shape and hammering the bottom butt of connector 25 into shape, the right side of described hammer 8 and alignment pin 8a butt by the 26a of hook portion is engaged with holding section 8b, can be installed in hammer 8 on the hammer connector 25.
At this moment, clockwise rotate by making adjustment screw 27, the 26a of hook portion pushes hammer 8 powerfully, and perhaps by adjustment screw 27 is rotated counterclockwise, the described hook 26a of portion separates with holding section 8b, hammer 8 can be taken off from hammer connector 25.
Bottom at the sliding surface (inner peripheral surface) of hammering supporting mass 22 into shape is provided with circular oil sealing 28.Short transverse center section part at the outer peripheral face of hammering supporting mass 22 into shape is provided with circular oil sealing 29.Be provided with circular oil sealing 30 at clamper component 20 with the bight that contacts of framework 1a.On a plurality of positions of hammer supporting mass 22 lower ends, fixing annular plate 31 with Screw again.Utilize this annular plate 31 can prevent that oil sealing 28 from deviating from.Rely on these oil sealings 28～30, can prevent that the lubricating oil that uses in the round end button holing sewing machine 1 from dripping downwards between clamper component 20 and hammer supporting mass 22.
Form the chamfered section 7a of institute's measured length in the left side of cutter axis member 7 upper ends.Hammer supporting mass 22 screws togather with spline pin 32.Cutter axis member 7 is being inserted when leading to spline pin 32 and chamfered section 7a butt in hammer supporting mass 22.The result is that restriction cutter axis member 7 can not rotate.
Below with reference to Fig. 1～Fig. 4 transmission mechanism 10 is described.
On the other hand, arm 3 is provided with the 2nd link component 42 that extends along left and right directions.The 2nd link component 42 is made of the pushing side end 42a in left side, the connection side end 42b on right side and the pivot support of substantial middle.These push side end 42a and are connected the two fork-shapeds of each self-forming of side end 42b.On framework 1a, fixing the 2nd pivot fulcrum 43 that fore-and-aft direction extends.Pivot is supporting the 2nd link component 42 rotationally on the 2nd pivot fulcrum 43.
Between these the 1st link components 40 and the 2nd link component 42, be provided with the front and see the roughly intermediate connecting rod member 44 of く word shape.Dodge hole 44a what the roughly Lower Half of this intermediate connecting rod member 44 formed linearity, this purposes of dodging hole 44a is the decline of allowing cutter axis member 7 as the operator with manual operation during with downwards off-position decline of cutter axis member 7.
Connection side end 40c at two fork-shapeds of the 1st link component 40 the 1st connecting pin 45 along fore-and-aft direction crossbearer (fixing).The central portion of the 1st connecting pin 45 with dodge hole 44a engagement connection.Again, the upper end of intermediate connecting rod member 44 connects between the fork thigh that is connected side end 42b by the 2nd connecting pin 46 on the fore-and-aft direction and two fork-shapeds of the 2nd link component 42.
Inside at the pushing side end 42a of two fork-shapeds of the 2nd link component 42 is provided with press-on roller 47.This press-on roller 47 is carried out the pivot supporting rotationally by pivot fulcrum 48.The upper end butt of this press-on roller 47 and cutter axis member 7.At this moment, the part of press-on roller 47 peripheries has been chamfered to be flat condition, and this tabular surface contacts with the upper end of cutter axis member 7.In the right part of press-on roller 47, fixing the fastening plate 49 of L word shape by Screw 50.
In the upper end of cutter axis member 7, from the right-hand notch 7b that is formed with.In this notch 7b across shape fixing the engagement pin 7c of fore-and-aft direction.This engagement pin 7c engages from the horizontal walls of below with fastening plate 49.
As shown in Figure 1, portion's front end face is being fixed engagement pin 51 near the left end of the 2nd link component 42.On the framework 1a of upside, fixing engagement pin 52 equally.Between this engagement pin 51 and 52, mounting draft helical spring 53.Adopt this structure, the elastic force that the left end of the 2nd link component 42 can utilize draft helical spring 53 is the application of force upward.The result is that cutter axis member 7 also passes through fastening plate 49 application of force upward.
Below with reference to Fig. 3, Fig. 6 and Fig. 7 interlock governor motion 12 is described.
Right-hand member in hammer supporting mass 22 bottoms is formed with to the 1st of right-hand protrusion and regulates the platform 22c of portion.At the downside of the installation convex edge 20a of clamper component 20, be formed with protrude downwards the 2nd regulate the platform 20c of portion.
Be formed with the eccentric pivot hole 22d that fore-and-aft direction extends in the 1st bottom of regulating the platform 22c of portion.Be formed with the benchmark axis hole 20d that fore-and-aft direction extends in the 2nd bottom of regulating the platform 20c of portion.In the time will hammering supporting mass 22 insertion clamper components 20 into shape, the 1st regulates the platform 22c of portion and the 2nd regulates the platform 20c of portion adjacency, and eccentric pivot hole 22d and benchmark axis hole 20d are opposed.At this moment, cam pin member 55 can be inserted among described eccentric pivot hole 22d and the benchmark axis hole 20d.Cam pin member 55 is done once bright.Columned benchmark axial region 55b is provided with the eccentric columned eccentric axial portion 55a that forms with respect to benchmark axial region 55b.Position at the fore-and-aft direction central portion of this benchmark axial region 55b is formed with diameter than the little minor diameter part of benchmark axial region 55b.Front end face at cam pin member 55 forms labeled slots 55d.When inserting cam pin member 55 among eccentric pivot hole 22d and the benchmark axis hole 20d, the position of eccentric axial portion 55a is embedded among the eccentric pivot hole 22d, and the position of benchmark axial region 55b is embedded among the benchmark axis hole 20d.At this moment, the diameter of eccentric pivot hole 22d on above-below direction is a bit larger tham the external diameter of eccentric axial portion 55a.The pivot supporting part that cam pin member 55 was set at and hammered into shape supporting mass 22 from the position.
Regulate the 1st pin-and-hole 22e that is formed with on the platform 22c of portion with eccentric pivot hole 22d quadrature the 1st.Embedding the 1st banking pin member 56, the 1 banking pin members 56 in the 1st pin-and-hole 22e can make eccentric axial portion 55a not become flexible with respect to eccentric pivot hole 22d.In order to keep the restriction state of the 1st banking pin member 56, with the 1st fixedly Screw 57 embed from the place ahead.Like this, the 1st banking pin member 56 is by the 1st fixedly Screw 57 maintenances.
Equally, regulate the 2nd pin-and-hole 20e that is formed with on the platform 20c of portion with benchmark axis hole 20d quadrature the 2nd.Embedding the 2nd banking pin member 58, the 2 banking pin members 58 in the 2nd pin-and-hole 20e can make benchmark axial region 55b not become flexible with respect to benchmark axis hole 20d.At this moment, the front end of the 2nd banking pin member 58 engages with the path hole 55c of cam pin member 55.Can prevent coming off of cam pin member 55 thus.In order to keep the restriction state of the 2nd banking pin member 58, with the 2nd fixedly Screw 59 embed from the rear.Like this, the 2nd banking pin member 58 is by the 2nd fixedly Screw 59 maintenances.
When the operator is resisted against on one side the labeled slots 55d of this cam pin member 55 with Flathead screwdriver in, on one side clockwise or when counterclockwise rotating cam pin member 55, eccentric axial portion 55a relative datum axial region 55b carries out off-centre and turns round.Like this, as shown in figure 11, hammer supporting mass 22 will be with step pivot backing pin 23 to swing as the swing fulcrum, and the mounting position of hammer supporting mass 22 becomes forward lean or hypsokinesis posture with respect to vertical position.Because the mounting position of hammer 8 tilts with respect to the mounting position of cutting knife 5, but so interlocking pattern of governor weight 8 and cutting knife 5.
Promptly, when the hammer supporting mass 22 the bottom to right-hand fine motion, will hammer the occasion that supporting mass 22 is inclined to forward lean into shape, be that cutting knife bearing plane 8c is inclined relative to horizontal into the right side and has scratched shape below the hammer 8, and when the bottom of hammer supporting mass 22 to the left fine motion, will hammer the occasion that supporting mass 22 is inclined to the hypsokinesis posture, hammer 8 cutting knife bearing plane 8c into shape and be inclined relative to horizontal into a left side and scratched shape.Like this, the direction by reference marker groove 55d waits the amount of spin of suitably regulating cam pin member 55, but the interlocking pattern of governor weight 8 and cutting knife 5 just.
As shown in Figure 8, be formed with the screw 22f of pin thread at the 1st upside of regulating the platform 22c of portion.Be formed with bolt insertion hole 20f at the 2nd upside of regulating the platform 20c of portion.Screw togather with screw 22f by set bolt 60 is inserted to lead in bolt insertion hole 20f, these the 1st and the 2nd adjusting platforms 22c of portion, 20c after interlock can being regulated carry out fastening.Can keep cutting knife 5 and the interlocking pattern of hammering 8 into shape thus.
The following describes the effect and the effect of the cloth cutting device 11 of this structure.
Is that the state that the position of cutter axis member 7 is in the position of readiness after the rising is made an explanation with reference to Fig. 1 to the turnover state of the piston rod 9a of cylinder 9.The processing cloth W of (or before forming) was positioned the institute's allocation on the needle plate 16 after the operator will form keyhole stitch seam, again according to shown in Figure 9, when being retracted into the piston rod 9a that drives cylinder 9, the operator is that center of rotation clockwise rotates with the 1st link component 40 with the 1st pivot fulcrum 41, meanwhile, the 2nd link component 42 is that center of rotation rotates counterclockwise by intermediate connecting rod member 44 with the 2nd pivot fulcrum 43.Like this, the pushing side end 42a of the 2nd link component 42 pushes cutter axis member 7 to by press-on roller 47 off-position of below.At this moment, processing cloth W is hammered into shape 8 and is pressed to cutting knife 5 places, carries out the perforation in round end hole in the inboard of the keyhole stitch seam (or keyhole stitch seam formation reservations) of processing cloth W.
Here, if making the 1st link component 40 by the piston rod 9a that is retracted into driving cylinder 9 is that center of rotation clockwise rotates with the 1st pivot fulcrum 41, then constitute triangle, constituted elbow type mechanism (so-called force-increasing mechanism) by this triangle by the center X of the 1st pivot fulcrum 41, the center Y of the 1st connecting pin 45 and the center Z of the 2nd connecting pin 46.
Like this, when the 1st link component 40 clockwise rotated, the angle of release α of limit XY that is made up of X and Y and the limit YZ that is made up of Y and Z became big, upwards pushes the 2nd connecting pin 46.This pushing force becomes the big moment of torsion of driving force when driving than being retracted into of piston rod 9a.Thus, even small-sized cylinder 9 also can produce the cut-out power that forms the required 8KN in round end hole by hammer 8.
Thereafter, as shown in Figure 1, the piston rod 9a turnover by cylinder 9 rotates counterclockwise the 1st link component 40.At this moment, the 1st connecting pin 45 of the connection side end 42b of the 1st link component 40 can only move in dodging hole 44a downwards, and the power that intermediate connecting rod member 44 is drawn downwards can not take place.
But, utilize the elastic force that is mounted on the draft helical spring 53 on the 2nd link component 42, the 2nd link component 42 is clockwise rotated.Thus, the cutter axis member 7 that is connected with engagement pin 7c by fastening plate 49 is thus lifted to the position of readiness of top.
Now the broken string state in the way made of keyhole stitch seam is carried out down to make and handle the back, describe by hammering 8 occasions of carrying out the perforation of round end hole into shape.At this moment, above the cutter axis member was positioned at when processing finishes, as shown in figure 10, the operator carried out contraposition with manual operation with the off-position that cutter axis member 7 is pressed to the below, makes keyhole stitch seam again once more.
In this occasion,, pretend the dealer downwards with cutter axis member 7 is moved because of cylinder 9 is not driven.That is, along with move the below of cutter axis member 7, the 2nd link component 42 that is connected by fastening plate 49 rotates counterclockwise.Meanwhile, be raised with the intermediate connecting rod member 44 that the 2nd link component 42 is connected by the 2nd connecting pin 46.In this occasion, dodge hole 44a because of being formed with on the intermediate connecting rod member 44, so dodging among the 44a of hole at this, moves by the 1st connecting pin 45 of the 1st link component 40.Like this, intermediate connecting rod member 44 can not have any obstacle ground and carries out vertical motion.
Below, 8 become the effective occasion of single face with the malocclusion of cutting knife 5 to hammering into shape, describe such as the interlock control method of the malocclusion occasion in the left side (round end hole side) in round end hole.At first, the operator unclamps set bolt 60.Secondly, the operator uses the adjustment means of screwdriver etc. that cam pin member 55 is clockwise rotated.The result is that hammer 8 is by hammering supporting mass 22 into shape towards B direction minute movement shown in Figure 11.Meanwhile, the mounting position of hammer supporting mass 22 is inclined to forward lean, and the result is the left side of hammer 8 the cutting knife bearing plane 8c small quantity that can only descend.Like this, but operator's interlocking pattern of governor weight 8 and cutting knife 5 just.
Again to the effective occasion of the single face of reverse side, describe such as the malocclusion occasion on the right side (straight sides) in round end hole.At first, the operator unclamps set bolt 60.Secondly, the operator uses the adjustment means of screwdriver etc. that cam pin member 55 is rotated counterclockwise.The result is that hammer 8 is by hammering supporting mass 22 into shape towards F direction minute movement shown in Figure 11.Meanwhile, the mounting position of hammer supporting mass 22 is inclined to the hypsokinesis posture, and the result is the right side of hammer 8 the cutting knife bearing plane 8c small quantity that can only descend.Like this, but operator's interlocking pattern of governor weight 8 and cutting knife 5 just.
Here as shown in figure 11, when the operator rotated 1 circle with cam pin member 55, hammer 8 can maximumly move about 0.25mm on fore-and-aft direction.Meanwhile, hammer 8 can maximumly move about 0.08mm on short transverse.Like this, the operator is in the moving range of the about 0.25mm of fore-and-aft direction, the about 0.08mm of short transverse, but the interlocking pattern of governor weight 8 and cutting knife 5.
As mentioned above, in the cloth cutting device 11 of round end button holing sewing machine 1, be provided with interlock governor motion 12.The result is, even in the effective such occasion of single face, also can the mounting position of hammer supporting mass 22 and Cutter apron 15 be tilted by interlock governor motion 12, just can carry out the interlock adjusting with the interlocking pattern of cutting knife 5 to hammering 8 into shape.Like this, owing on the cutting knife bearing plane 8c of hammer 8, formed impartial cutting knife vestige all the time, therefore can omit the grinding operation of the trouble of grinding cutting knife bearing plane 8c.Can further improve the life-span and the durability of hammer 8.And, hammer 8 is regulated with the interlock of cutting knife 5 interlocking patterns oversimplified, can improve the perforation operating efficiency in round end hole.
In the inboard of clamper component 20, insert shape ground embedded hammer supporting mass 22, clamper component 20 with hammer into shape between the supporting mass 22, be provided with and fall within clamper component 20 under the lubricant that prevents to flow into and hammer oil sealing 29 between the supporting mass 22 into shape.Regulate owing to can make hammer supporting mass 22 carry out interlock obliquely, therefore, between clamper component 20 and embedded wherein hammer supporting mass 22, produce minim gap (play) with respect to clamper component 20.Though lubricant might fall by this minim gap,, utilize the oil sealing 29 of being located at clamper component 20 and hammering 22 of supporting masses into shape, can prevent from reliably to drop under the lubricant on the processing cloth W.
And, on processing cloth W, carry out after by cutting knife 5 and the interoperation of hammer 8, formation or before forming in the cloth cutting device 11 of the round end button holing sewing machine 1 of boring a hole in the round end hole in keyhole stitch seam, the operator unclamps and keeps clamper component 20 and the set bolt 60 of hammering supporting mass 22 usefulness into shape, hold mode is removed, made cam pin member 55 clockwise or rotate counterclockwise.The result is the mounting position run-off the straight of hammer supporting mass 22 with respect to clamper component 20.Meanwhile, make hammer 8 minute movement by hammer supporting mass 22.The result can only make hammer 8 cutting knife bearing plane 8c decline small quantity, and the operator carries out interlock with the interlocking pattern of cutting knife 5 and regulates hammering 8 into shape, and this is fastening with set bolt 60 after regulating, and can keep the interlocking pattern after interlock is regulated.Like this, owing on the cutting knife bearing plane 8c of hammer 8, formed impartial cutting knife vestige all the time, therefore can omit the grinding operation of the trouble of grinding cutting knife bearing plane 8c.Can further improve the life-span and the durability of hammer 8.And, hammer 8 is regulated with the interlock of cutting knife 5 oversimplified, can improve the perforation operating efficiency in round end hole.
The following describes the change form of the partial alteration of the foregoing description.
As shown in figure 12, regulate among the platform 22c of portion, the 20c, utilize compression helical spring 66 to push by the eccentric axial portion 55a of 65 pairs of cam pin members 55 of location Screw the 1st, the 2nd.And, also can utilize the elastic force of compression helical spring 66 that eccentric axial portion 55a is carried out position limit, it is not become flexible with respect to the 1st eccentric pivot hole 22d that regulates the platform 22c of portion.
Equally, utilize compression helical spring 68 to push by the benchmark axial region 55b of 67 pairs of cam pin members 55 of location Screw.And, also can utilize the elastic force of compression helical spring 68 that benchmark axial region 55b is carried out position limit, it is not become flexible with respect to the 2nd benchmark axis hole 20d that regulates the platform 20c of portion.
Also can adopt following structure, the operator is as required by the degree of eccentricity of change cam pin member 55, adopts methods such as the interlock regulating quantity being set at about 0.1mm to change.
Micrometer adjusting screw also can be set on clamper component 20 substitute cam pin member 55, by this adjustment screw of rotating operation, fine-tuning hammer supporting mass 22 is with respect to the gradient of clamper component 20.
Regulate by making hammer 8 tilt to carry out interlock, also can use the interlock governor motion to regulate and be located at base plate 2 upper cutters 5 and the interlock of hammering 8 into shape.
About aforesaid embodiment, also can on the self-evident technical foundation of prior art and technical staff, add various changes.And the present invention also is applicable to certainly making and carries out the bore a hole various cloth cutting devices of such structure of round end hole on the basis of keyhole stitch seam.
Claims (6)
1. the cloth cutting device of a round end button holing sewing machine has:
Be installed on sewing machine frame Cutter apron, be fixed on the cutting knife on the described Cutter apron;
Be installed on described sewing machine frame the hammer supporting mass, be bearing in the hammer on the described hammer supporting mass,
By the interoperation of described cutting knife and described hammer, after the formation of keyhole stitch seam or before forming, on processing cloth, carry out the perforation in round end hole, it is characterized in that,
Be provided with the interlock governor motion, this interlock governor motion passes through to regulate the mounting position of the mounting position of at least one side in described hammer supporting mass and the Cutter apron with respect to the opposing party, can regulate the interlocking pattern of cutting knife and hammer.
2. the cloth cutting device of round end button holing sewing machine as claimed in claim 1 is characterized in that,
Described hammer supports described hammer up and down movingly,
Described interlock governor motion can be finely tuned with respect to the gradient of described Cutter apron described hammer supporting mass.
3. the cloth cutting device of round end button holing sewing machine as claimed in claim 2 is characterized in that,
Have the clamper component that is fixed in described sewing machine frame,
Described hammer supporting mass is bearing on the described clamper component,
Described interlock governor motion has:
The pivot that described hammer supporting mass pivot is supported on described clamper component props up member swingably; And
Be located at described pivot with described hammer supporting mass prop up pivot supporting part that member forms from the position on, and variable hammer supporting mass with respect to the eccentric component of the gradient of described clamper component.
4. the cloth cutting device of round end button holing sewing machine as claimed in claim 3 is characterized in that,
On described hammer supporting mass, axis hole is set,
Described eccentric component constitutes by the benchmark axial region with the integrally formed cam pin member of eccentric axial portion,
Have: the 1st limiting member that described eccentric axial portion is carried out position limit, its described relatively axis hole is not become flexible; And
The 2nd limiting member that described benchmark axial region is carried out position limit, the axis hole of its relative clamper component is not become flexible.
5. as the cloth cutting device of claim 3 or 4 described round end button holing sewing machines, it is characterized in that,
Be inserted with described hammer supporting mass in the inboard of described clamper component,
At least one side at the outer peripheral face of the inner peripheral surface of described clamper component and described hammer supporting mass is provided with oil sealing, and the lubricant that is used to prevent to flow between described clamper component and described hammer supporting mass falls.
6. the interlock control method of cutting knife and described hammer described in the cloth cutting device of a round end button holing sewing machine has: the Cutter apron that is installed on sewing machine frame; The 1st holding device that described Cutter apron is kept with respect to the mounting position of described sewing machine frame; Be fixed on the cutting knife on the described Cutter apron; Be installed on the hammer supporting mass of described sewing machine frame; The 2nd holding device that described hammer supporting mass is kept with respect to the mounting position of described sewing machine frame; And be bearing in hammer on the described hammer supporting mass, and by the interoperation of described cutting knife and described hammer, after the formation of keyhole stitch seam or before forming, on processing cloth, carry out the perforation in round end hole, it is characterized in that, comprising:
The operation that at least one side in described Cutter apron and the described hammer supporting mass is removed with respect to the hold mode of the mounting position of described sewing machine frame;
Make the operation of the mounting position of at least one side in described Cutter apron and the described hammer supporting mass with respect to the opposing party's mounting position inclination; And
The operation that the mounting position of at least one square neck in described Cutter apron and the described hammer supporting mass after tiltedly kept.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003331584A JP4296890B2 (en) | 2003-09-24 | 2003-09-24 | Eyelet sewing machine cloth cutting device |
| JP2003331584 | 2003-09-24 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910207087 Division CN101694042B (en) | 2003-09-24 | 2004-09-24 | Cloth cutting device of eyelet button hole sewing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1600931A true CN1600931A (en) | 2005-03-30 |
| CN100567610C CN100567610C (en) | 2009-12-09 |
Family
ID=34460204
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910207087 Expired - Lifetime CN101694042B (en) | 2003-09-24 | 2004-09-24 | Cloth cutting device of eyelet button hole sewing machine |
| CNB2004100826535A Withdrawn - After Issue CN100567610C (en) | 2003-09-24 | 2004-09-24 | The cloth cutting device of round end button holing sewing machine |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910207087 Expired - Lifetime CN101694042B (en) | 2003-09-24 | 2004-09-24 | Cloth cutting device of eyelet button hole sewing machine |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4296890B2 (en) |
| CN (2) | CN101694042B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1924145B (en) * | 2005-08-29 | 2011-02-16 | 兄弟工业株式会社 | Cloth-cutting device for round-head keyhole sartorius |
| CN1944754B (en) * | 2005-10-06 | 2011-05-18 | 兄弟工业株式会社 | Control device for sewing machine |
| CN1924144B (en) * | 2005-08-29 | 2011-07-06 | 兄弟工业株式会社 | Cloth-cutting device for round-head keyhole sartorius |
| CN104420081A (en) * | 2013-08-22 | 2015-03-18 | 启翔股份有限公司 | Driving hammer adjusting mechanism for button hole cutting device of buttonholing machine |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4296890B2 (en) * | 2003-09-24 | 2009-07-15 | ブラザー工業株式会社 | Eyelet sewing machine cloth cutting device |
| JP6247082B2 (en) * | 2013-11-21 | 2017-12-13 | Juki株式会社 | Hole sewing machine |
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| GB197521A (en) * | 1922-04-28 | 1923-05-17 | Albert Benjamin Wood | Improvements in or relating to button hole cutters |
| JPS5913973Y2 (en) * | 1980-04-10 | 1984-04-24 | 三和実業株式会社 | Cutter device attached to sewing machine |
| JPS6156689A (en) * | 1984-06-29 | 1986-03-22 | 三菱電機株式会社 | Cloth cutter of hole stitching sewing machine |
| DE3930562C1 (en) * | 1989-09-13 | 1991-01-31 | Duerkopp Adler Ag, 4800 Bielefeld, De | |
| JPH0556082U (en) * | 1991-12-27 | 1993-07-27 | ジューキ株式会社 | Zigzag sewing machine |
| JP3178574B2 (en) * | 1994-05-30 | 2001-06-18 | ブラザー工業株式会社 | Eyelet hole honing machine knife position adjusting device |
| DE19716629C1 (en) * | 1997-04-21 | 1998-08-20 | Duerkopp Adler Ag | Buttonhole sewing machine |
| DE19716631C2 (en) * | 1997-04-21 | 2002-11-21 | Duerkopp Adler Ag | Tolerance compensation device for a cutting device |
| JP3793981B2 (en) * | 1998-12-03 | 2006-07-05 | ブラザー工業株式会社 | Sewing machine feed generator |
| JP3486126B2 (en) * | 1999-01-25 | 2004-01-13 | ブラザー工業株式会社 | Overhole sewing machine cloth cutting device |
| DE19916660C1 (en) * | 1999-04-14 | 2000-06-21 | Duerkopp Adler Ag | Buttonhole sewing machine has a control unit which determines the operation of the drives for cutting and stitching buttonholes of different shapes and/or sizes without manual resetting |
| JP4336418B2 (en) * | 1999-05-07 | 2009-09-30 | Ｊｕｋｉ株式会社 | Sewing machine cloth cutting equipment |
| DE19926866C1 (en) * | 1999-06-12 | 2000-08-24 | Duerkopp Adler Ag | Sewing machine with a cutting blade has a twin-setting pneumatic piston/cylinder linear drive for the blade guide rod as a coupling between the main drive and the blade rod |
| DE10066325B4 (en) * | 1999-12-13 | 2010-04-01 | Juki Corp., Chofu | Sewing material cutting device for a sewing machine |
| DE10225512C1 (en) * | 2002-06-10 | 2003-07-17 | Duerkopp Adler Ag | Buttonhole sewing machine has a cutter drive, to move the blade and block in relation to each other with a variable cutting force, through a number of selective pneumatic linear drives switched in parallel |
| JP4296890B2 (en) * | 2003-09-24 | 2009-07-15 | ブラザー工業株式会社 | Eyelet sewing machine cloth cutting device |
-
2003
- 2003-09-24 JP JP2003331584A patent/JP4296890B2/en not_active Expired - Fee Related
-
2004
- 2004-09-24 CN CN 200910207087 patent/CN101694042B/en not_active Expired - Lifetime
- 2004-09-24 CN CNB2004100826535A patent/CN100567610C/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1924145B (en) * | 2005-08-29 | 2011-02-16 | 兄弟工业株式会社 | Cloth-cutting device for round-head keyhole sartorius |
| CN1924144B (en) * | 2005-08-29 | 2011-07-06 | 兄弟工业株式会社 | Cloth-cutting device for round-head keyhole sartorius |
| CN1944754B (en) * | 2005-10-06 | 2011-05-18 | 兄弟工业株式会社 | Control device for sewing machine |
| CN104420081A (en) * | 2013-08-22 | 2015-03-18 | 启翔股份有限公司 | Driving hammer adjusting mechanism for button hole cutting device of buttonholing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4296890B2 (en) | 2009-07-15 |
| JP2005095302A (en) | 2005-04-14 |
| CN101694042B (en) | 2013-03-20 |
| CN100567610C (en) | 2009-12-09 |
| CN101694042A (en) | 2010-04-14 |
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