A kind of cutter mechanism of sewing machine
Technical field
This utility model belongs to sewing machine technique field, is related to a kind of cutter mechanism of sewing machine.
Background technology
Sewing machine is to use one or more sewing thread, and one or more stitching is formed on sewing, stitches one or more layers
The machine that material interweaves or unites by a seam.The cutter mechanism of sewing machine is for the knife to being cut into the sewing in sewing machine
Tool.With the continuous development of sewing machine, the automaticity more and more higher of sewing machine.
As people devise the cutter in a kind of fortune sewing machine, and Chinese patent (its Application No. is applied for:
201120476038.8;Its notification number is:CN202369780U), the cutter be arranged at fortune sewing machine head on and
In workbench top, including for by the presser foot component of pressuring template, moving knife and for driving moving knife upper and lower relative to workbench
Mobile drive component, has clutch component, with being in can clutch component on presser foot component between moving knife and drive component
The changeover module with bonding state is separated, changeover module can be such that moving knife ties with drive component when presser foot component is moved down by pressuring template
Close, when disengaging template is moved on presser foot component, changeover module can be such that moving knife separates with drive component.
Cutter in the fortune sewing machine realizes the cutting of sewing by the clutch component on presser feet cooperation moving knife
Operation, high degree of automation and compact conformation, but, the presser feet of the cutter in the fortune sewing machine is for by pressuring template
, there is a certain distance between moving knife, when moving knife cutting cloth, easily cause cloth to cut because of cloth displacement or deformation
There is deviation and then cause cut quality poor, i.e., the cutter is only limitted to some are difficult to send out to ensure cloth cut quality
The cloth of raw displacement and deformation is cut, and the scope of application is less.
The content of the invention
The purpose of this utility model is the problems referred to above existed for prior art, it is proposed that a kind of cutter machine of sewing machine
Structure, technical problem to be solved are how to improve the scope of application in the case where cloth cutting effect is ensured.
The purpose of this utility model can be realized by following technical proposal:
A kind of cutter mechanism of sewing machine, including mounting seat, cutter driving part and dynamic cutting knife, described cutter driving part
It is fixed in above-mentioned mounting seat and can drive described dynamic cutting knife to move up and down, it is characterised in that to set below described dynamic cutting knife
Cutting knife base is equipped with, the cutter that can be engaged with above-mentioned dynamic cutting knife, described cutter mechanism on the upside of the cutting knife base, is connected with
Also include binder actuator and binder part, described binder actuator is fixed in above-mentioned mounting seat, described binder part can be
Decline and be pressed on the upper side of above-mentioned cutting knife base under the drive of above-mentioned binder actuator, described dynamic cutting knife can be driven in cutting knife
From in the middle part of above-mentioned binder part pass through and pass from the downside of binder part under the drive of moving part.
When the cutter mechanism of sewing machine is used, cloth is positioned on the upside of cutting knife base, binder is driven by binder actuator
Part moves down and is pressed on cloth to realize the fixation of cloth, then drives dynamic cutting knife to move down by cutter driving part, through binder part
Simultaneously realize that cloth cuts with cutter cooperation in middle part.In this cutting process, come by snap fit of the binder part with cutting knife base
The positioning of cloth is realized, and because dynamic cutting knife is to pass through to realize cloth cutting, the i.e. week of cloth cutting part from binder part
Positioned to edge by binder part, cloth is not susceptible to displacement, meanwhile, cloth is realized by the cooperation of dynamic cutting knife and cutter
Cutting, cut quality are more preferable.So, the cutter mechanism of this sewing machine can be suitably used for the cutting operation of various clothes, the scope of application
Extensively.
In a kind of cutter mechanism of above-mentioned sewing machine, described binder part is annular in shape and is set with the direction of axis vertical
Put, above-mentioned dynamic cutting knife can be passed through under the drive of cutter driving part from binder part, the lower surface of described binder part is plane
And can mutually recline with the upper side of above-mentioned cutting knife base.The lower surface of binder part is plane, can be with the plane on the upside of cutting knife base
Mutually recline, make contact surface between the two bigger, against when to cloth compress stability it is more preferable so that cloth is in cutting process
In it is more stable.And the binder part of ring-type can be preferably compressed to the cloth for moving cutting knife periphery, when further increasing cloth cutting
Stability.
In a kind of cutter mechanism of above-mentioned sewing machine, in annular shape, its sidepiece has level convex to described binder part
Go out plate-like connecting portion, the outfan of described binder actuator is connected with connecting portion, and above-mentioned dynamic cutting knife is arranged in described
The center of binder part.Dynamic cutting knife is arranged at the home position of the binder part of annular shape so that cloth cutting position and its peripheral edge
Distance along each compacted position of cloth pushed down by binder part is roughly the same so that cloth in cutting process each pressed
The radial effect that tight position is subject to is roughly the same, avoids each cloth compression point poor with the distance between cloth cutting position
Away from larger and situation that cause each cloth to compress discontinuity at point and be subjected to displacement.
In a kind of cutter mechanism of above-mentioned sewing machine, described cutting knife base includes underlying fixed seat and position
In the rotation seat of top, described cutter is connected on rotation seat, and the lower end of described rotation seat is arranged in above-mentioned fixed seat
It is interior and can circumferentially rotate relative to fixed seat, by being arranged in the positioning of fixed seat sidepiece between described rotation seat and fixed seat
Part is positioned, and also including being vertically arranged in shaft-like cutter bar, above-mentioned dynamic cutting knife is vertically fixed on cutting knife to described cutter mechanism
The lower end of bar, described cutter bar upper end are detachably connected with above-mentioned cutter driving part.When the cloth cutting for needing different angles
During operation, by cutter bar pull down rotation to required angle reconnect, meanwhile, pull down keeper, by rotation seat relative to
Fixed seat rotation identical angle is repositioned again, and now dynamic cutting knife and cutter are can be achieved with to the different angles of cloth
Cutting, it is adaptable to the demand of various cloth cuttings.
In a kind of cutter mechanism of above-mentioned sewing machine, there is on the upside of described cutting knife base recessed installation cavity, institute
The cutter stated is arranged to be installed the upper side of intracavity and cutter and is not higher than the upper side of cutting knife base, described cutter
The cutting mouth stretched into for above-mentioned dynamic cutting knife is formed between the side wall of cutting edge and above-mentioned installation cavity, described cutter can be along its sword
The direction of mouth is moved back and forth and is detachably connected with described cutting knife base by securing member.Cutter be arranged at installation intracavity and
Installation cavity is not higher by, can be avoided the setting of knife edge that the impact of cloth is pushed down to binder part, and the position of knife edge be can adjust and make
The cooperation that cutting knife and cutter must be moved is more various, it is adaptable to the cutting of more different cutters and cloth.
In a kind of cutter mechanism of above-mentioned sewing machine, the upper side of described cutter offers the cunning in strip
Groove, the cutting edge of the setting direction of the chute and above-mentioned cutter towards consistent, described securing member pass through above-mentioned chute and with
Cutting knife whorl of base connects, and the upper end of described securing member has head, and described chute inwall has the shoulder block of protrusion, described
Head can be resisted against on shoulder block.When needing to adjust the position of knife edge, securing member is screwed out, mobile cutter so as to relative
Move in securing member, after moving to desired position, tightening fastener parts, make the head of securing member be pressed on shoulder block again, it is real
The existing positioning to cutter.
In a kind of cutter mechanism of above-mentioned sewing machine, described cutter mechanism also includes that cutting knife crank and cutting knife connect
Bar, described cutter driving part is motor, and one end of described cutting knife crank is sheathed on the outside of the output shaft of motor and defeated with this
Shaft is circumferentially fixed, and the other end of cutting knife crank is connected with a connecting shaft, and one end of described cutter connecting rod is sheathed on connection
The outside of axle and with connecting shaft axial restraint, the other end of cutter connecting rod is sheathed on the outside of a connecting pole, one end of the connecting pole
It is connected with above-mentioned cutter bar, also there is in described mounting seat the strip gathering sill for vertically opening up, described connection
The other end of post is stretched in gathering sill and can be moved up and down along gathering sill.By motor coordinate cutting knife crank and cutter connecting rod come
Lifting driving is carried out to dynamic cutting knife, is driven more stable and is driven precision higher.
In a kind of cutter mechanism of above-mentioned sewing machine, described cutter mechanism also includes knife bar seat, and the knife bar seat connects
It is connected to mounting seat sidepiece and the both sides of mounting seat, shape between described knife bar seat and mounting seat is divided into above-mentioned cutter driving part
Into cavity, above-mentioned cutting knife crank, cutter connecting rod, connecting shaft and connecting pole are may be contained within the cavity, on the inside of described knife bar seat
Also there is the knife bar chamber of the strip for vertically opening up, described cutter bar is vertically arranged at knife bar intracavity.By knife bar seat and peace
The cooperation of dress seat, whole drive mechanism is arranged between the two, drive mechanism is protected, it is to avoid exposed and be likely to result in
Unnecessary damage.
In a kind of cutter mechanism of above-mentioned sewing machine, described binder actuator is cylinder, and the cylinder is vertically arranged,
The cylinder body of cylinder is connected with above-mentioned mounting seat, and the piston rod of cylinder is extended downwardly from and is connected with above-mentioned binder part.Using cylinder
The driving of binder part is carried out, cloth can be more stably pushed down.
Compared with prior art, the cutter mechanism of this sewing machine has advantages below:
1st, compressed to moving the cloth around cutting knife cutting position using the binder part of annular, it is ensured that the matter of cloth cutting
Amount so that the cutter mechanism of whole sewing machine can be suitably used for the cutting of various clothes, applied widely.
2nd, by the rotatable of the rotatable and rotation seat of cutter bar so that dynamic cutting knife and cutter can be adjusted as needed
Cutting angle, meets the demand of various cloth cuttings.
Description of the drawings
Fig. 1 is the structural representation of the cutter mechanism of this sewing machine.
Fig. 2 is the structural representation after removing knife bar seat at the mounting seat of the cutter mechanism of this sewing machine.
Fig. 3 be this sewing machine cutter mechanism in cutting knife base structural representation.
Fig. 4 be this sewing machine cutter mechanism in binder part structural representation.
Fig. 5 be this sewing machine cutter mechanism in cutting knife base cross section structure diagram.
In figure, 1, mounting seat;1a, gathering sill;2nd, cutter driving part;3rd, move cutting knife;4th, cutting knife base;41st, fixed seat;
42nd, rotation seat;42a, installation cavity;42b, cutting mouth;5th, cutter;6th, binder actuator;7th, binder part;7a, connecting portion;8th, cut
Knife bar;9th, securing member;10th, cutting knife crank;11st, cutter connecting rod;12nd, connecting shaft;13rd, connecting pole;14th, knife bar seat.
Specific embodiment
The following is specific embodiment of the utility model and combine accompanying drawing, further is made to the technical solution of the utility model
Description, but this utility model is not limited to these embodiments.
As shown in figure 1, the cutter mechanism of this sewing machine include mounting seat 1, the cutter driving part 2 being fixed in mounting seat 1,
The dynamic cutting knife 3 for driving and moving up and down of cutter driving part 2 and the cutting knife base 4 being arranged at below dynamic cutting knife 3, cutting knife bottom can be received
The horizontally disposed cutter 5 that can be engaged with dynamic cutting knife 3 is connected with the upside of seat 4.Wherein, cutter mechanism is also driven including binder
Part 6 and binder part 7 annular in shape, binder actuator 6 are fixed in mounting seat 1, binder part 7 arranged with the direction of axis vertical and
Binder part 7 can decline and be pressed on the upper side of cutting knife base 4 under the drive of binder actuator 6, and dynamic cutting knife 3 can be in cutting knife
From in binder part 7 pass through and pass from the downside of binder part 7 under the drive of actuator 2.
In the present embodiment, cutter driving part 2 is motor, and motor casing and the mounting seat 1 of the motor fix, the output of motor
Axle is penetrated in mounting seat 1, and the opposite side being connected with cutter driving part 2 in mounting seat 1 is connected with knife bar seat 14 and the knife bar seat 14
Cavity is formed between mounting seat 1, the drive mechanism of Motor drive 3 action of dynamic cutting knife in the cavity, is provided with;Binder actuator 6
For cylinder, the cylinder is vertically arranged, and cylinder body and the mounting seat 1 of cylinder are connected, and the piston rod of cylinder is extended downwardly from;As shown in figure 4,
In annular shape, there is its sidepiece binder part 7 level to protrude plate-like connecting portion 7a, and binder part 7 passes through connecting portion 7a and gas
The piston rod of cylinder is connected;The lower surface of binder part 7 is plane and can mutually be reclined with the upper side of cutting knife base 4.
As shown in Fig. 2 the drive mechanism in the cavity being arranged between knife bar seat 14 and mounting seat 1 includes cutting knife crank
10th, cutter connecting rod 11, connecting shaft 12, connecting pole 13 and the cutter bar 8 being vertically arranged.Specifically, one end of cutting knife crank 10
It is sheathed on the outside of the output shaft of motor and circumferentially fixed with the output shaft, the other end of cutting knife crank 10 and perpendicular setting
One end of connecting shaft 12 is connected, one end of cutter connecting rod 11 be sheathed on the outside of 12 other end of connecting shaft and with 12 axle of connecting shaft
To fixation, the other end of cutter connecting rod 11 is sheathed on outside in the middle part of connecting pole 13.Also have in mounting seat 1 and vertically open up
Strip gathering sill 1a, one end of connecting pole 13 is stretched in gathering sill 1a and can be moved up and down along gathering sill 1a, connecting pole
13 other end is fixed with generally U-shaped cutting ferrule, and the cutting ferrule is sheathed on the outside of cutter bar 8, the sidepiece of two ends of cutting ferrule
Be equipped with a bolt and the bolt be threadedly coupled with two ends of cutting ferrule, by rotating the bolt by make cutting ferrule tighten up card
Firmly cutter bar 8 or reverse rotation bolt unclamp cutter bar 8.In addition, knife bar seat 14 also has towards the side of mounting seat 1 erecting
The knife bar chamber of strip for setting is headed straight for, cutter bar 8 is vertically arranged at knife bar intracavity and lower end can be passed simultaneously from 14 lower end of knife bar seat
It is connected with the dynamic cutting knife 3 being vertically arranged.
As shown in Figure 3 and Figure 5, cutting knife base 4 includes underlying fixed seat 41 and rotation seat 42 above, fixed
Cutting knife 5 is connected on rotation seat 42, and the lower end of rotation seat 42 is cylindrical and is arranged in fixed seat 41 and rotation seat 42 can phase
For fixed seat 41 is circumferentially rotated.Between rotation seat 42 and fixed seat 41 by be arranged in 41 sidepiece of fixed seat and with fixed seat 41
The keeper positioning of threaded connection.In the present embodiment, keeper is screw.
The upside of rotation seat 42 also has recessed installation cavity 42a, and 42a is substantially square for the installation cavity, and its one end is opened up
To the center of rotation seat 42, the other end is opened up to the sidepiece of rotation seat 42.Cutter 5 is arranged in installation cavity 42a and cutter 5
Upper side be not higher than the upper side of rotation seat 42, the side at the cutting edge of cutter 5 close 42 center of rotation seat upper with installation cavity 42a
The cutting mouth 42b stretched into for dynamic cutting knife 3 is formed between wall, cutter 5 can move back and forth along the direction of its cutting edge and pass through tight
Firmware 9 is detachably connected with cutting knife base 4.
In the present embodiment, the upper side of cutter 5 has the recessed chute in strip, and the chute runs through cutter
5 upper side and downside, and the length setting direction of chute and the cutting edge of cutter 5 are towards consistent.Securing member 9 is spiral shell
Bolt, its bar portion are passed through chute and are threadedly coupled with cutting knife base 4, and the upper end of securing member 9 has head, and chute inwall has protrusion
Shoulder block, the head of securing member 9 can be resisted against on shoulder block.
When the cutter mechanism of sewing machine is used, cloth is positioned on the upside of cutting knife base 4, pressure is driven by binder actuator 6
Materials and parts 7 move down and are pressed on cloth to realize the fixation of cloth, then drive dynamic cutting knife 3 to move down by cutter driving part 2, move cutting knife
3 pass through ring-type binder part 7 and realize that cloth cuts with the cooperation of cutter 5.In this cutting process, by binder part 7 and cutting knife bottom
The snap fit of seat 4 realizing the positioning of cloth, and because binder part 7 is in circular and move cutting knife 3 be through next from binder part 7
Realize that, along being positioned, cloth is not susceptible to displacement for cloth cutting, the i.e. peripheral edge of cloth cutting part, meanwhile, by dynamic
The cutting coordinated to realize cloth of cutting knife 3 and cutter 5, cut quality are more preferable.
When the cloth cutting operation for needing to carry out different angles, the bolt on cutting ferrule is unclamped, cutter bar 8 is pulled down and is revolved
Retorque after angle needed for going to.Meanwhile, keeper is pulled down, rotation seat 42 is rotated relative to fixed seat 41 identical
Angle reposition again, now move cutting knife 3 and cutter 5 and can be achieved with the cutting to the different angles of cloth, it is adaptable to
The demand of various cloth cuttings.
When needing to adjust the position of knife edge, securing member 9 is screwed out, mobile cutter 5 so as to move relative to securing member 9
Dynamic, after moving to desired position, tightening fastener parts 9, make the head of securing member 9 be pressed on shoulder block again, realize to cutting surely
The positioning of knife 5.
Specific embodiment described herein is only explanation for example to this utility model spirit.This utility model institute
Category those skilled in the art can make various modifications or supplement or using similar to described specific embodiment
Mode substitute, but without departing from it is of the present utility model spirit or surmount scope defined in appended claims.