CN206873080U - A kind of cutting knife clutch - Google Patents
A kind of cutting knife clutch Download PDFInfo
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- CN206873080U CN206873080U CN201720614031.5U CN201720614031U CN206873080U CN 206873080 U CN206873080 U CN 206873080U CN 201720614031 U CN201720614031 U CN 201720614031U CN 206873080 U CN206873080 U CN 206873080U
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Abstract
The utility model provides a kind of cutting knife clutch, belongs to sewing machine technique field.It solves the problems such as existing sewing machine cutting knife motion state handoff procedure can not be smoothed out.This cutting knife clutch is arranged on casing, including transmission component and adjusting part, transmission component includes eccentric cam, cutter bar, connecting rod two and connecting rod four, cutter bar is plugged in casing, cutter connecting rod is arranged with eccentric cam, the head end of connecting rod two is hinged with cutter connecting rod, the tail end of connecting rod four is hinged with cutter bar, adjusting part includes driving group, adjustment axis, connecting rod three and connecting rod five, adjustment axis is located on casing, driving group and regulation axis connection, the head end of connecting rod five is fixedly connected with adjustment axis, the head end of the tail end of connecting rod five and connecting rod three is hinged, the tail end of connecting rod three, the tail end of connecting rod two and the head end of connecting rod four are coaxially hinged, the four isometric setting of connecting rod three and connecting rod.This cutting knife clutch has the advantages that cutting knife motion state handoff procedure is easily smooth.
Description
Technical field
The utility model belongs to sewing machine technique field, is related to a kind of cutting knife clutch.
Background technology
Sewing machine is exactly the machine for being sutured sewing by suture, the needs sewed according to realization, on sewing machine simultaneously
Eedle and cutting knife are set, is all driven and is moved by main shaft between eedle and cutting knife.But cutting knife and eedle are not
Will move together, when should not cutting knife motion when, it is necessary to make cutting knife no longer with master by the clutch between main shaft and cutting knife
Axle moves.
Chinese patent literature data, which discloses, proposes a kind of use in sewing machine cutting knife motion separating mechanism [application number：
201420715149.8；Notification number：205077238U], including eccentric cam, swinging mounting, balance staff, length adjustment connecting rod, cut
Cutter shaft seat, cutting knife clutch spring, clutch crank support, cutting knife clutch knob and cutting knife reset spanner, and eccentric cam is sheathed on sewing
On the upper axle of machine head, eccentric cam is connected by balance staff crank one with balance staff, and balance staff support, balance staff support are arranged with balance staff
Center section balance staff on be arranged with balance staff crank two, the other end of balance staff crank two is connected with one end of length adjustment connecting rod,
The other end of length adjustment connecting rod is connected with cutting knife clutch crank, and cutting knife clutch crank is connected with clutch crank support, and clutch is bent
Handle support is fixed on cutting knife axle bed by screw, and cutting knife axle bed is connected by Cutter apron guide rod and Cutter apron bar with Cutter apron,
Cutting knife axle bed is connected by slitter shaft with cutting knife clutch support, and cutting knife is connected with the side of cutting knife axle bed and resets spanner, cutting knife
The openend of clutch crank is in contact with the sliding block being arranged on cutting knife clutch support, and cutoff knife rack is connected by screw with Cutter apron,
Cutting knife, cutting knife clutch spring and the mode connects for screw set on Cutter apron are connected with cutoff knife rack.
The cutting knife moves the motion process of separating mechanism：Start sewing machine to rotate, upper eccentric shaft cam connects balance staff crank
One does reciprocally swinging, and cutting knife clutch crank reciprocally swinging, cutting knife clutch song are driven by balance staff, balance staff crank two, regulation connecting rod
Bing Yacha mechanisms and shoe contact, for slide block set on cutting knife clutch support, the motion of cutting knife clutch crank-swinging drives cutting knife clutch
Support moves up and down, and drives Cutter apron and cutting knife together to move.When needing cutting knife static, cutting knife on-of pin, Cutter apron are pulled open
Moved upwards with cutoff knife rack and cutting knife under the effect of cutting knife clutch spring, until the contact of at the top of Cutter apron and cutting knife axle bed bottom is quiet
Only, now cutting knife clutch support and separated with Cutter apron, cutting knife clutch crank continues to move up and down with cutting knife clutch support, cuts
Knife on-of pin end face is withstood on Cutter apron slide guide face；When needing cutting knife return motion, pressing cutting knife separation spanner is cut, it is necessary to overcome
The pulling force of knife clutch spring moves downward Cutter apron, when Cutter apron pin-and-hole and cutting knife on-of pin on the same axis when, cutting knife from
Dowel pin is internally put in Cutter apron pin-and-hole under spring effect, and cutting knife clutch support connects an entirety with Cutter apron, and cutting knife returns
Multiple motion.
Above-mentioned use in sewing machine cutting knife moves separating mechanism by the fractionation of transmission component and reconfigures i.e. cutting knife clutch
The fractionation of support and Cutter apron and reconfigure, realize the separation of cutting knife and upper axle and be connected, realize cutting knife and transported with upper axle
Switching dynamic and that two states are not moved with upper axle.The state that cutting knife moves with upper axle is cutting knife movable state, cutting knife not with
The state of upper axle motion is cutting knife inactive state.In cutting knife and upper axis connection, cutting knife on-of pin is closely connected to cutting knife
In seat pin hole, at this moment cutting knife on-of pin is by the pressure of contained spring, and also by the pulling force of cutting knife clutch spring, such cutting knife is from can
When dynamic state is switched to inactive state, larger power is needed when cutting knife on-of pin is pulled out from Cutter apron pin-and-hole；And because cut
Knife on-of pin moves up and down with Cutter apron, and cutting knife is switched to inactive state from movable state needs shutdown operation.When cutting knife is from quiet
When only state is switched to movable state, cutting knife separation spanner need to be pressed and cutting knife on-of pin is put in Cutter apron pin-and-hole,
Thus need cutting knife on-of pin and Cutter apron pin-and-hole to have preferably to coordinate, once there is debris in cutting knife on-of pin and Cutter apron
Fall during separation in Cutter apron pin-and-hole or be pasted onto on cutting knife on-of pin, cutting knife on-of pin will be caused smoothly to enter and cut
In tool rest pin-and-hole, make cutting knife bothersome laborious from the static process for being switched to motion, cause handoff procedure to be smoothed out.
The content of the invention
The purpose of this utility model is in view of the above-mentioned problems existing in the prior art, it is proposed that a kind of cutting knife clutch,
The technical problem of solution is how to make the switching of cutting knife motion state easily smooth.
The purpose of this utility model can be realized by following technical proposal：
A kind of cutting knife clutch, on casing, including transmission component and adjusting part, the transmission component include
Eccentric cam and cutter bar, the cutter bar is plugged in casing and can moved up and down in casing, on the eccentric cam
Be arranged with cutter connecting rod, it is characterised in that the transmission component also includes connecting rod two and connecting rod four, the head end of the connecting rod two with
Cutter connecting rod is hinged, and the tail end of the connecting rod four is hinged with cutter bar, and the adjusting part includes driving group, adjustment axis, connecting rod
Three and connecting rod five, the adjustment axis be located on casing, the driving group axis connection and can drive adjustment axis to rotate with regulation,
And adjustment axis can also be locked on casing by driving group, the head end of the connecting rod five is fixedly connected with adjustment axis, the connecting rod
The head end of five tail end and connecting rod three is hinged, and the head end of the tail end of the connecting rod three, the tail end of connecting rod two and connecting rod four is coaxially cut with scissors
Connect, the four isometric setting of connecting rod three and connecting rod.
When installing cutting knife clutch, eccentric cam is fixedly connected with main shaft, and cutting knife, main shaft are fixedly connected with cutter bar
Rotate and drive the cutter connecting rod on eccentric cam to swing.When cutting knife is in movable state, the angle of connecting rod three and connecting rod four is not
Zero, driving group lock adjustment axle and connecting rod five, main axis drive eccentric cam, cutter connecting rod, connecting rod two, the and of connecting rod four successively
Cutter bar moves, so as to drive cutting knife to move up and down.Cutting knife from movable state be switched to inactive state when, driving group driving regulation
Axle is rotated so as to which drivening rod five is swung, and the tail end of connecting rod five promotes connecting rod three to move, the movement progress connecting rod two of connecting rod three and company
Bar four moves, and when adjustment axis, which turns to, makes the angle of connecting rod three and connecting rod four be zero, due to connecting rod three and connecting rod four is isometric sets
Put, and the head end of the tail end of connecting rod three, the tail end of connecting rod two and connecting rod four is coaxially hinged so that connecting rod three and the hinged place of connecting rod five
Rotary shaft it is conllinear with the rotary shaft of connecting rod four and the hinged place of cutter bar, cutter bar is in the lock state, and now passes through driving
Group lock adjustment axle, main axis can only drive link four around the hinged place of connecting rod four and cutter bar rotate, cutting knife is no longer with master
The rotation of axle and move up and down.So when adjustment axis turn to make the angle of connecting rod three and connecting rod four be zero when, then pass through driving
Group lock adjustment axle, cutting knife switch to inactive state.When needing the cutting knife to move again, adjustment axis need to only be rotated certain
Angle, it is in certain angle connecting rod three is moved between connecting rod four, then is locked adjustment axis by driving group.Pass through
Connecting rod two, connecting rod three, connecting rod four, connecting rod five and adjustment axis are set, this cutting knife clutch is only rotated by driving group and adjusts
Nodal axisn can be realized as the switching of cutting knife motion state, it is not necessary to transmission component is split and reconfigured, transports cutting knife
The switching of dynamic state is easily smooth.And because transmission component need not be split, the handoff procedure of cutting knife motion state can
To be carried out when motion of main shaft, it is not necessary to shutdown operation so that the switching of cutting knife motion state is easily smooth.
In above-mentioned cutting knife clutch, the transmission component also includes connecting rod one, and the head end of the connecting rod one is hinged
On casing, tail end, the head end of connecting rod two and the tail end of cutter connecting rod of the connecting rod one are coaxially hinged.
If being not provided with connecting rod one, when cutting knife is by upward external force, main shaft will be made by transmission component by outer
The effect of power, the effect of adjustment axis also stress external force is made by connecting rod three and connecting rod five.Set connecting rod one after, when cutting knife by
On external force when, connecting rod one can offset a part of external force, so as to the external force for reducing main shaft and adjustment axis is subject to.Connecting rod one is set
Putting reduces cutting knife is impacted by during external force to main shaft, makes mechanism operably more stable.The setting of connecting rod one can also be reduced and cut
Knife is impacted by during external force to adjustment axis, makes the lock-out state of adjustment axis stable, so as to be advantageous to the switching of cutting knife motion state
Stability, the unstable process for needing to readjust mechanism of adjustment axis is reduced, makes the switching of cutting knife motion state easily smooth.
In above-mentioned cutting knife clutch, the driving group includes knob base and knob, and the knob base is fixed on machine
On shell, the knob is located at the outside of casing, and the adjustment axis is fixedly connected through knob base with knob, the knob base and rotation
The latch-up structure for being capable of hook knob turned position, and latch-up structure at least two are provided between button.
Adjustment axis is fixedly connected with knob, and turning knob can just drive adjustment axis to rotate, the turned position of hook knob
Just it is capable of the turned position of lock adjustment axle.Latch-up structure at least two, such latch-up structure is at least capable of hook knob
Two turned positions, that is to say, that latch-up structure is at least capable of two turned positions of lock adjustment axle.Cutting knife is in static shape
During state, knob is locked on the first turned position, and when needing cutting knife being switched to movable state, turning knob rotates knob
Certain angle simultaneously makes knob be locked on the second turned position in the presence of latch-up structure, and such adjustment axis also just have rotated
Certain angle and locking, realize switching of the cutting knife from inactive state to movable state.Equally when needing cutting knife from can
When dynamic state is switched to inactive state, turning knob makes knob from the second rotated position to the first turned position and passes through lock
Determine structure to lock the first turned position.Cutting knife motion only need to be can be realized as by rotating the knob on the outside of casing
The switching of state, make the switching of cutting knife motion state easily smooth.
In above-mentioned cutting knife clutch, axis hole is provided with the casing, the knob base includes cylindrical
Fixed column, the fixed column are plugged and are fixed in axis hole, and the outer end of the fixed column passes axis hole, the fixed column inner face
The upper perforation with through fixed column, the outer end of the adjustment axis passes from perforation, had on the outer face of the fixed column
Fixed disk, the latch-up structure are arranged between fixed disk and knob.
Knob base is fixed between adjustment axis and casing, it is possible to reduce rocking when adjustment axis rotates, turn adjustment axis
Dynamic angle is accurate, so that the switching of cutting knife motion state is easily smooth.
In above-mentioned cutting knife clutch, the latch-up structure includes the neck being arranged on knob base and is plugged in
Alignment pin on knob, blind hole is provided with the knob, spring is fixed with the blind hole, the inner of the alignment pin plugs
In blind hole and it is resisted against on spring, the alignment pin can slide in blind hole, and the neck is spherical groove, the alignment pin
Outer end be ballhead, the outer end of the alignment pin can be snapped onto in neck.
When cutting knife remains static, the alignment pin on knob is stuck in No.1 neck, it is necessary to when being switched to movable state,
Turning knob, thrust of the alignment pin by neck cell wall to alignment pin, alignment pin overcome the elastic force of spring to make the outer end of alignment pin
Depart from out of No.1 neck, when the outer end of alignment pin reaches No. two necks, alignment pin is extend into the presence of spring force
In No. two necks and block, adjustment axis is switched to movable state with the certain angle of knob and locking, cutting knife motion state.
Likewise, need from movable state be switched to inactive state when, only need turning knob alignment pin is departed from from No. two necks and block again
Enter to No.1 neck.Cutting for cutting knife motion state is can be realized as by turning knob and using neck and alignment pin
Change, make handoff procedure easily smooth.
In above-mentioned cutting knife clutch, the latch-up structure also includes the stopper slot being arranged on knob and is fixed on
Limited block on knob base, the stopper slot are deep-slotted chip breaker, and the limited block is located in stopper slot and can slided in stopper slot
It is dynamic.
Knob makes limited block be rotated in stopper slot, and when limited block is resisted against in the side wall of stopper slot, knob will
It can not rotate in same direction again.The setting of stopper slot and limited block limits the rotational angle of knob, prevents user from rotating position, makes
The switching of cutting knife motion state is easily smooth.
In above-mentioned cutting knife clutch, the bottom surface of the neck is provided with through hole.When alignment pin is stuck in neck
When, alignment pin can be dredged by through hole, for example be resisted against with thimble through through hole on alignment pin, thimble pressure positioning
Pin makes the outer end of alignment pin return in blind hole, knob is rotated, makes the switching of cutting knife motion state easily smooth.
In above-mentioned cutting knife clutch, the latch-up structure includes magnetic pin and positioning disk, and the adjustment axis passes through
Knob base is fixedly connected with the positioning disk, and the knob is removably attached on positioning disk, and hole slot is provided with the knob base,
Spring one is fixed with the hole slot, the outer end of the spring one fixes the pin that is magnetic, positioning hole is provided with the positioning disk,
The outer end of the magnetic pin can be snapped onto in positioning hole, and magnetic patch is provided with the knob, and the magnetic pin is relative with magnetic patch
Magnetic simultaneously is identical, and curved stopper slot is provided with the knob base, has limited block, the limit on the positioning disk
Position block is located in stopper slot and can slided in stopper slot, the magnetic pin when limited block is resisted against in the side wall of stopper slot
Faced with the aperture of positioning hole, the positioning hole there are two.
When cutting knife remains static, knob is not affixed on positioning disk, and magnetic pin is outer in the presence of spring one
End is snapped onto in No.1 positioning hole, and limited block is resisted against in the side wall of wherein one end of stopper slot.Need to be switched to movable state
When, knob is fixed on positioning disk, magnetic patch is identical with magnetic pin opposite side magnetic, and magnetic pin shifts hole slot onto by repulsion
Interior, the aperture of magnetic pin and No.1 positioning hole faces；Turning knob, knob drive positioning disk and adjustment axis to rotate certain angle
Degree, limited block are resisted against in the other end of side wall of stopper slot, and the aperture of magnetic pin and No. two positioning holes faces, dismounting rotation
Button, in the presence of spring one, the outer end of magnetic pin is snapped onto in No. two positioning holes, and cutting knife is switched to movable state.Similarly, need
When being switched to inactive state from movable state, knob need to be only fixed to the shape for rotating backward and can not being rotated again on positioning disk
State, then dismantle knob.Only the switching of cutting knife motion state need to be can be realized as by assembling and disassembling knob and turning knob, make to cut
The switching of knife motion state is easily smooth.
In above-mentioned cutting knife clutch, the driving group includes the motor being fixed on casing, and the motor turns
Axle is fixedly connected with adjustment axis.
The control panel of motor and sewing machine is connected, and the rotation and stopping of controlled motor are just capable of by control panel, from
And the rotation and locking of axle are controlled to adjust, make the regulation of cutting knife motion state easily smooth.Because this cutting knife clutch is in master
Axle can also realize the switching of cutting knife motion state during rotating, can be better achieved automatically after adjusting axis connection motor
Change and improve processing efficiency.
Compared with prior art, the utility model has advantages below：
The connecting rod two being hinged with cutter connecting rod, the connecting rod four being hinged with cutter bar are set in transmission component, in regulation group
The connecting rod five for adjustment axis is set in part, being fixedly connected with adjustment axis, the connecting rod three being hinged with connecting rod five, while make the tail of connecting rod three
The head end at end, the tail end of connecting rod two and connecting rod four is coaxially hinged, and makes the four isometric setting of pull bar three and connecting rod, is realized by turning
Dynamic adjustment axis can be realized as the switching of cutting knife motion state, make the switching of cutting knife motion state easily smooth.In transmission component
In also set up the connecting rod one being hinged with casing, tail end, the head end of connecting rod two and the tail end of cutter connecting rod of connecting rod one be coaxially hinged,
Further make the switching of cutting knife motion state easily smooth.The knob and knob base that driving group is arranged to cooperate, turn-knob
Seat is fixed on casing, and knob is fixedly connected with adjustment axis, and latch-up structure is set between knob and knob base；By latch-up structure
It is arranged to alignment pin and neck, connecting spring and in the blind hole of knob on alignment pin, the outer end of alignment pin is ballhead,
Neck is spherical groove, by turn knob and by the cooperation of alignment pin and neck, easily can successfully realize that cutting knife moves
The switching of state.Latch-up structure is arranged to magnetic pin, positioning hole and the magnetic patch on knob, also can be easily successfully real
The switching of existing cutting knife motion state.Driving group is arranged to motor, also easily can successfully realize cutting for cutting knife motion state
Change.
Brief description of the drawings
Fig. 1 is installation stereogram of this cutting knife clutch embodiment one on casing；
Fig. 2 is the stereogram that this cutting knife clutch embodiment one remains static；
Fig. 3 is the left view that this cutting knife clutch embodiment one remains static；
Fig. 4 is the stereogram that this cutting knife clutch embodiment one is in movable state；
Fig. 5 is the left view that this cutting knife clutch embodiment one is in movable state；
Fig. 6 is the sectional view of the driving group of this cutting knife clutch embodiment one and adjustment axis；
Fig. 7 is the stereogram of the knob base of this cutting knife clutch embodiment one；
Fig. 8 is the stereogram of the knob of this cutting knife clutch embodiment one.
In figure, 1, casing；1a, axis hole；2nd, main shaft；3rd, transmission component；3a, eccentric cam；3b, cutter connecting rod；3c, connecting rod
Two；3d, connecting rod four；3e, cutter bar；3f, connecting rod one；4th, adjusting part；5th, adjustment axis；6th, connecting rod three；7th, connecting rod five；8th, drive
Dynamic group；8a, knob base；8a1, fixed column；8a2, fixed disk；8a3, perforation；8a4, through hole；8b, knob；9th, latch-up structure；9a、
Neck；9b, alignment pin；9c, blind hole；9d, spring；9e, stopper slot；9f, limited block；10th, cutting knife straight rail；11st, Cutter apron；12、
Cutting knife.
Embodiment
It is specific embodiment of the utility model and with reference to accompanying drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these embodiments.
Embodiment one
As Figure 1-Figure 5, sewing machine includes casing 1, and level is equipped with main shaft 2 in casing 1 and main shaft 2 can be in casing
Rotated in 1.A kind of cutting knife clutch, on casing 1, including transmission component 3 and adjusting part 4, transmission component 3 include
Eccentric cam 3a, cutter connecting rod 3b, the 3c of connecting rod two, the 3d of connecting rod four and cutter bar 3e, cutter bar 3e are vertically inserted into casing 1 simultaneously
It can be moved up and down in casing 1.Eccentric cam 3a is arranged and is fixed on main shaft 2, and cutter connecting rod 3b head end is set in partially
On cardiac prominence wheel 3a, the head end of cutter connecting rod 3b tail end and the 3c of connecting rod two is hinged, the 3c of connecting rod two tail end and the 3d of connecting rod four head
End is be hinged, and the upper end of the 3d of connecting rod four tail end and cutter bar 3e is hinged, and cutter bar 3e lower end is fixedly connected with Cutter apron 11,
Cutting knife 12 is fixedly connected with Cutter apron 11.The cutting knife straight rail 10 being vertically arranged, Cutter apron 11 are also fixedly connected with casing 1
On be provided with the chute coordinated with cutting knife straight rail 10, cutting knife straight rail 10 is inlaid in chute, and Cutter apron 11 can be straight along cutting knife
Rail 10 moves up and down.Cutter bar 3e upper end is fixedly connected with knife bar connecting pole, and the 3d of connecting rod four tail end is sleeved on knife bar connection
It can rotate on post and on knife bar connecting pole.Transmission component 3 also includes the 3f of connecting rod one, and the 3f of connecting rod one head end is hinged on casing
On 1, the tail end of the 3f of connecting rod one tail end and cutter connecting rod 3b is hinged, and the 3f of connecting rod one tail end, the 3c of connecting rod two head end and is cut
Knife connecting rod 3b tail end is coaxially hinged.
Adjusting part 4 includes driving group 8, adjustment axis 5, connecting rod 36 and connecting rod 57, and the level of adjustment axis 5 is located in casing 1
Upper and parallel with main shaft 2, the outer end of adjustment axis 5 passes casing 1 and is connected with driving group 8, and driving group 8 can drive 5 turns of adjustment axis
It is dynamic, and adjustment axis 5 can also be locked on casing 1 by driving group 8.The inner of adjustment axis 5 is fixed with the head end of connecting rod 57 to be connected
Connect, the head end of the tail end and connecting rod 36 of connecting rod 57 is hinged, and the head end of the tail end and the 3d of connecting rod four of connecting rod 36 is hinged, and connecting rod
36 tail end, the 3c of connecting rod two tail end and the 3d head ends of connecting rod four are coaxially hinged, connecting rod 36 and the isometric settings of the 3d of connecting rod four.
As shown in Fig. 1, Fig. 6, Fig. 7 and Fig. 8, driving group 8 includes knob base 8a and knob 8b, and knob base 8a is fixed on casing
On 1, knob 8b is located at the outside of casing 1, and axis hole 1a is provided with casing 1, and adjustment axis 5 is located in axis hole 1a, adjustment axis 5
Outer end pass axis hole 1a.Knob base 8a is fixedly connected with the lateral surface of casing 1, knob base 8a includes fixed column 8a1, fixed
Post 8a1 is plugged and is fixed in axis hole 1a, has the perforation 8a3 through fixed column 8a1, adjustment axis 5 on fixed column 8a1 inner faces
It is located in perforation 8a3, the outer end of adjustment axis 5 passes from perforation 8a3 and is fixedly connected with knob 8b.Fixed column 8a1 outer end
Face has fixed disk 8a2, and the latch-up structure 9 for being capable of hook knob 8b turned positions is provided between fixed disk 8a2 and knob 8b,
And latch-up structure 9 at least two, latch-up structure 9 are at least capable of hook knob 8b two turned positions.Latch-up structure 9 includes
On the neck 9a being arranged on fixed disk 8a2 outer faces and the alignment pin 9b being plugged on knob 8b, knob 8b and fixed disk
One side relative 8a2 is provided with blind hole 9c, and spring 9d is fixed with blind hole 9c, and alignment pin 9b the inner is plugged in blind hole 9c simultaneously
It is resisted against on spring 9d, alignment pin 9b can be slided in blind hole 9c.Neck 9a is spherical groove, and neck 9a bottom surface is provided with
Through fixed disk 8a2 through hole 8a4；Alignment pin 9b outer end is ballhead, and alignment pin 9b outer end can snap onto neck 9a
It is interior, neck 9a at least two.It is No.1 neck and No. two necks that two of which in neck 9a is numbered respectively, works as alignment pin
When 9b snaps onto No.1 neck, the motion state of cutting knife 12 is inactive state；When alignment pin 9b snaps onto No. two necks, cutting knife
12 motion state is movable state.Latch-up structure 9 also includes the stopper slot 9e being arranged on knob 8b and is fixed on fixed disk
Limited block 9f on 8a2, limited block 9f protrusion fixed disk 8a2 outer face, stopper slot 9e is deep-slotted chip breaker, and limited block 9f is located at
It can slide in stopper slot 9e and in stopper slot 9e.When alignment pin 9b snaps onto No.1 neck, limited block 9f is positioned at spacing
Groove 9e wherein one end；When alignment pin 9b snaps onto No. two necks, limited block 9f is located at stopper slot 9e other end.
As shown in Figures 2 and 3, cutting knife 12 remains static, and the connecting rod 36 and 3d of connecting rod four angle is zero, due to even
Bar 36 and the isometric settings of the 3d of connecting rod four, and the tail end of connecting rod 36, the 3c of connecting rod two tail end and the 3d head ends of connecting rod four are coaxially hinged,
So that the rotary shaft of connecting rod 36 and the hinged place of connecting rod 57 is conllinear with the 3d of connecting rod four and cutter bar 3e hinged place rotary shaft, cut
Knife bar 3e is in the lock state, main shaft 2 rotate can only the 3d of drive link four around the 3d of connecting rod four and cutter bar 3e hinged place rotate,
Cutting knife 12 no longer moves up and down with the rotation of main shaft 2.
As shown in Figure 4 and Figure 5, cutting knife 12 is in movable state, and connecting rod 36 and the 3d of connecting rod four angle are not zero, cutting knife
Bar 3e unlocks state.The lock adjustment axle 5 of driving group 8 and connecting rod 57, main shaft 2 rotates drives eccentric cam 3a, cutting knife successively
Connecting rod 3b, the 3c of connecting rod two, the 3d of connecting rod four and cutter bar 3e motions, so as to drive cutting knife 12 to move up and down.
Need by the motion state of cutting knife 12 from inactive state be switched to movable state when, turning knob 8b makes alignment pin 9b
Depart from out of No.1 neck, when alignment pin 9b outer end reaches No. two necks, alignment pin 9b outer end is extend into No. two necks
And block, now adjustment axis 5 rotates certain angle and locking with knob 8b, and connecting rod 57 is put during adjustment axis 5 rotates
Dynamic, connecting rod 57 swings drivening rod 36 and moved, the 3c of 36 movement progress connecting rod of connecting rod two and the 3d of connecting rod four motions, so that even
Bar 36 and the 3d of connecting rod four angle are not zero, and cutter bar 3e lock-out state releases, and the motion state of cutting knife 12 is switched to can
Dynamic state.
Need by the motion state of cutting knife 12 from movable state be switched to inactive state when, turning knob 8b makes alignment pin 9b
Depart from out of No. two necks, when alignment pin 9b outer end reaches No.1 neck, alignment pin 9b outer end is extend into No.1 neck
And block, now adjustment axis 5 rotates certain angle and locking with knob 8b, and connecting rod 57 is put during adjustment axis 5 rotates
Dynamic, connecting rod 57 swings drivening rod 36 and moved, the 3c of 36 movement progress connecting rod of connecting rod two and the 3d of connecting rod four motions, and makes connecting rod
The 36 and 3d of connecting rod four angle is zero, and the rotary shaft of connecting rod 36 and the hinged place of connecting rod 57 is with the 3d's of connecting rod four and cutter bar 3e
The rotary shaft of hinged place is conllinear, and cutter bar 3e is in the lock state, and the motion state of cutting knife 12 is switched to inactive state, and cuts
Knife 12, which is elevated, is fixed on highest point.
By setting the 3c of connecting rod two, connecting rod 36, the 3d of connecting rod four, connecting rod 57, adjustment axis 5 and driving group 8, make this cutting knife from
The switching that adjustment axis 5 can be realized as the motion state of cutting knife 12 need to only be rotated by driving group 8 by closing mechanism, it is not necessary to will be driven
Component 3 is split and reconfigured, and makes the motion state handoff procedure of cutting knife 12 easily smooth.And this cutting knife clutch
Structure can switch under the motion state of main shaft 2, be not required to shutdown operation, improve the operating efficiency of sewing machine.
Embodiment two
Latch-up structure 9 is different from embodiment one in cutting knife clutch, and other structures are identical with embodiment one.Latch-up structure
9 include magnetic pin and positioning disk, and positioning disk is fixed in adjustment axis 5, and knob 8b is removably attached on positioning disk.Knob base
Hole slot is provided with 8a fixed disk 8a2 outer face, spring one is fixed with hole slot, the outer end of spring one, which is fixed, to be magnetic
Sell, the one side relative with stator outer face is provided with positioning hole on positioning disk, and the outer end of magnetic pin can snap onto positioning hole
It is interior.Magnetic patch is provided with knob 8b, magnetic pin is identical with the magnetic of magnetic patch opposite side, is set on fixed disk 8a2 outer face
There is a curved stopper slot 9e, the one side relative with fixed disk 8a2 outer faces has the limited block 9f of protrusion on positioning disk, spacing
Block 9f is located in stopper slot 9e and can slided in stopper slot 9e, the magnetic when limited block 9f is resisted against in stopper slot 9e side wall
The aperture of property pin and positioning hole faces.Prismatic hole is provided with knob 8b center, is had and prismatic hole on positioning disk
What is be engaged is in prismatic prism, and knob 8b is set on prism so as to be fixed with positioning disk.Positioning hole has two, marks respectively
Number it is No.1 positioning hole and No. two positioning holes, when magnetic pin snaps onto No.1 positioning hole, the motion state of cutting knife 12 is static
State；When magnetic pin snaps onto No. two positioning holes, the motion state of cutting knife 12 is movable state.When limited block 9f is resisted against limit
When in the side wall of position groove 9e wherein one end, the aperture of magnetic pin and No.1 positioning hole faces；When limited block 9f is resisted against limit
When in position groove 9e other end of side wall, the aperture of magnetic pin and No. two positioning holes faces.
When that need not switch the motion state of cutting knife 12, knob 8b disassembles from positioning disk；Cut when needing switching
During the motion state of knife 12, knob 8b is sleeved on the prism of positioning disk fixed.When cutting knife 12 remains static, in spring
The outer end of magnetic pin is snapped onto in No.1 positioning hole in the presence of one, and limited block 9f is resisted against stopper slot 9e wherein one end
In side wall.When needing to be switched to movable state, knob 8b is fixed on positioning disk, magnetic patch and magnetic pin opposite side magnetic
Property is identical, and magnetic pin is shifted onto in hole slot by the repulsion of magnetic patch；Turning knob 8b, knob 8b drive positioning disk and adjustment axis 5 to rotate
Certain angle, limited block 9f are resisted against in stopper slot 9e other end of side wall, the aperture of magnetic pin and No. two positioning holes
Face, dismantle knob 8b, in the presence of spring one, the outer end of magnetic pin is snapped onto in No. two positioning holes, and cutting knife 12 switches
To movable state.Similarly, it is necessary to from movable state be switched to inactive state when, only need to by knob 8b be fixed to positioning disk on again
The state that can not be rotated is rotated backward, then dismantles knob 8b.Only need to be by assembling and disassembling knob 8b and turning knob 8b with regard to energy
The switching of the motion state of cutting knife 12 is enough realized, makes the handoff procedure of the motion state of cutting knife 12 easily smooth.
Embodiment three
Driving group 8 is different from embodiment one in cutting knife clutch, and other structures are identical with embodiment one.Driving group 8 is wrapped
The motor being fixed on casing 1 is included, the rotating shaft of motor is fixedly connected with adjustment axis 5.The control panel of motor and sewing machine connects,
Just it is capable of the rotation and stopping of controlled motor by control panel, so as to control to adjust the rotation of axle 5 and locking, makes cutting knife 12
The regulation of motion state is easily smooth.Because cutting knife clutch can also realize motion state during main shaft 2 rotates
Switching, adjustment axis 5 can be better achieved the automation of sewing machine and improve the processing efficiency of sewing machine after connecting motor.
Specific embodiment described herein is only to the utility model spirit explanation for example.The utility model institute
Category those skilled in the art can make various modifications or supplement to described specific embodiment or using similar
Mode substitute, but without departing from spirit of the present utility model or surmount scope defined in appended claims.
Claims (9)
1. a kind of cutting knife clutch, on casing (1), including transmission component (3) and adjusting part (4), the transmission
Component (3) includes eccentric cam (3a) and cutter bar (3e), and the cutter bar (3e) is plugged in casing (1) and can be in casing
(1) moved up and down in, be arranged with cutter connecting rod (3b) on the eccentric cam (3a), it is characterised in that the transmission component (3)
Also include connecting rod two (3c) and connecting rod four (3d), the head end and cutter connecting rod (3b) of the connecting rod two (3c) are be hinged, the connecting rod
Four (3d) tail end is be hinged with cutter bar (3e), and the adjusting part (4) includes driving group (8), adjustment axis (5), connecting rod three (6)
With connecting rod five (7), the adjustment axis (5) is located on casing (1), and the driving group (8) is connected and can driven with adjustment axis (5)
Dynamic adjustment axis (5) is rotated, and adjustment axis (5) can also be locked on casing (1) by driving group (8), the head of the connecting rod five (7)
End is fixedly connected with adjustment axis (5), and the head end of the tail end and connecting rod three (6) of the connecting rod five (7) is hinged, the connecting rod three (6)
Tail end, the tail end of connecting rod two (3c) and the head end of connecting rod four (3d) be coaxially hinged, the connecting rod three (6) and connecting rod four (3d) etc.
It is long to set.
2. cutting knife clutch according to claim 1, it is characterised in that the transmission component (3) also includes connecting rod one
(3f), the head end of the connecting rod one (3f) are hinged on casing (1), tail end, the head of connecting rod two (3c) of the connecting rod one (3f)
The tail end of end and cutter connecting rod (3b) is coaxially hinged.
3. cutting knife clutch according to claim 1 or 2, it is characterised in that the driving group (8) includes knob base
(8a) and knob (8b), the knob base (8a) are fixed on casing (1), and the knob (8b) is located at the outside of casing (1), institute
State adjustment axis (5) to be fixedly connected with knob (8b) through knob base (8a), set between the knob base (8a) and knob (8b)
There are the latch-up structure (9) for being capable of hook knob (8b) turned position, and latch-up structure (9) at least two.
4. cutting knife clutch according to claim 3, it is characterised in that axis hole (1a) is provided with the casing (1),
The knob base (8a) includes cylindrical fixed column (8a1), and the fixed column (8a1) plugs and is fixed on axis hole (1a)
Interior, the outer end of the fixed column (8a1) passes axis hole (1a), has on fixed column (8a1) inner face and runs through fixed column
The perforation (8a3) of (8a1), the outer end of the adjustment axis (5) pass from perforation (8a3), the outer face of the fixed column (8a1)
Upper to have fixed disk (8a2), the latch-up structure (9) is arranged between fixed disk (8a2) and knob (8b).
5. cutting knife clutch according to claim 3, it is characterised in that the latch-up structure (9) includes being arranged on rotation
Neck (9a) on button seat (8a) and the alignment pin (9b) being plugged on knob (8b), blind hole is provided with the knob (8b)
(9c), is fixed with spring (9d) in the blind hole (9c), the inner of the alignment pin (9b) be plugged in blind hole (9c) and against
On spring (9d), the alignment pin (9b) can be slided in the blind hole (9c), and the neck (9a) is spherical groove, the positioning
The outer end for selling (9b) is ballhead, and the outer end of the alignment pin (9b) can be snapped onto in neck (9a).
6. cutting knife clutch according to claim 5, it is characterised in that the latch-up structure (9) also includes being arranged on
Stopper slot (9e) on knob (8b) and the limited block (9f) being fixed on knob base (8a), the stopper slot (9e) is arc
Groove, the limited block (9f) are located in stopper slot (9e) and can slided in stopper slot (9e).
7. cutting knife clutch according to claim 5, it is characterised in that the bottom surface of the neck (9a) is provided with through hole
(8a4)。
8. cutting knife clutch according to claim 3, it is characterised in that the latch-up structure (9) include magnetic pin and
Positioning disk, the adjustment axis (5) are fixedly connected with the positioning disk through knob base (8a), and the knob (8b) is removably attached to
On positioning disk, hole slot is provided with the knob base (8a), spring one is fixed with the hole slot, the outer end of the spring one is consolidated
Surely be magnetic pin, and positioning hole is provided with the positioning disk, and the outer end of the magnetic pin can be snapped onto in positioning hole, the rotation
Magnetic patch is provided with button (8b), the magnetic pin is identical with the magnetic of magnetic patch opposite side, is provided with the knob base (8a)
Curved stopper slot (9e), has limited block (9f) on the positioning disk, and the limited block (9f) is located in stopper slot (9e)
And can be slided in stopper slot (9e), when limited block (9f) is resisted against in stopper slot (9e) side wall, the magnetic pin is with determining
The aperture in position hole faces, and the positioning hole has two.
9. cutting knife clutch according to claim 1 or 2, it is characterised in that the driving group (8) includes being fixed on machine
Motor on shell (1), the rotating shaft of the motor are fixedly connected with adjustment axis (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720614031.5U CN206873080U (en) | 2017-05-27 | 2017-05-27 | A kind of cutting knife clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720614031.5U CN206873080U (en) | 2017-05-27 | 2017-05-27 | A kind of cutting knife clutch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206873080U true CN206873080U (en) | 2018-01-12 |
Family
ID=61337253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720614031.5U Active CN206873080U (en) | 2017-05-27 | 2017-05-27 | A kind of cutting knife clutch |
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| Country | Link |
|---|---|
| CN (1) | CN206873080U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107022854A (en) * | 2017-05-27 | 2017-08-08 | 浙江中捷缝纫科技有限公司 | A kind of cutting knife clutch |
| CN107326542A (en) * | 2017-09-02 | 2017-11-07 | 台州通宇服装机械科技有限公司 | A kind of cutting knife template sewing machine |
-
2017
- 2017-05-27 CN CN201720614031.5U patent/CN206873080U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107022854A (en) * | 2017-05-27 | 2017-08-08 | 浙江中捷缝纫科技有限公司 | A kind of cutting knife clutch |
| CN107326542A (en) * | 2017-09-02 | 2017-11-07 | 台州通宇服装机械科技有限公司 | A kind of cutting knife template sewing machine |
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