CN106757849B - A kind of sewing machine for improving automatic shearing mechanism - Google Patents
A kind of sewing machine for improving automatic shearing mechanism Download PDFInfo
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- CN106757849B CN106757849B CN201611252757.5A CN201611252757A CN106757849B CN 106757849 B CN106757849 B CN 106757849B CN 201611252757 A CN201611252757 A CN 201611252757A CN 106757849 B CN106757849 B CN 106757849B
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- cutting knife
- sewing
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- cutter hub
- driving axle
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- 238000009958 sewing Methods 0.000 title claims abstract description 98
- 238000010008 shearing Methods 0.000 title claims abstract description 48
- 230000007246 mechanism Effects 0.000 title claims abstract description 36
- 238000009966 trimming Methods 0.000 claims abstract description 36
- 230000005540 biological transmission Effects 0.000 claims abstract description 24
- 238000010408 sweeping Methods 0.000 claims abstract description 20
- 230000000694 effects Effects 0.000 claims abstract description 19
- 230000013011 mating Effects 0.000 claims description 10
- 239000012634 fragment Substances 0.000 claims description 7
- 238000005452 bending Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims 1
- 230000009471 action Effects 0.000 abstract description 5
- 238000010276 construction Methods 0.000 abstract description 3
- 230000007812 deficiency Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B65/00—Devices for severing the needle or lower thread
- D05B65/02—Devices for severing the needle or lower thread controlled by the sewing mechanisms
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B57/00—Loop takers, e.g. loopers
- D05B57/08—Loop takers, e.g. loopers for lock-stitch sewing machines
- D05B57/10—Shuttles
- D05B57/14—Shuttles with rotary hooks
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B69/00—Driving-gear; Control devices
- D05B69/02—Mechanical drives
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The invention discloses a kind of sewing machine for improving automatic shearing mechanism, the outside side of sewing arm is set as left side, the inside of sewing arm is rotatably installed with rotating shuttle power transmission shaft and cutter driving axle respectively, cutter driving axle sleeve is mounted in the outer rim of rotating shuttle power transmission shaft, the rotation shuttle seat for placing rotating shuttle is provided with the top of rotating shuttle power transmission shaft, for the top panel of fixed sewing lid to there is needle plate, the bottom surface of needle plate is fixed with fixed blade；Cutting knife activity space is provided with below needle plate, cutting knife activity space is located between side wall and the cutter driving axle of fixed sewing lid；Sweep cut cutting knife and be fixed on cutter driving axle, sweep cut cutting knife and be arranged at cutting knife activity space, the top for sweeping cut cutting knife is provided with cutter hub；Sweep cutting knife activity space of the cut cutting knife below fixed sewing lid during a trimming to move back and forth once, the cutter hub and fixed blade shearing for sweeping cut cutting knife coordinate.The present invention is simple in construction, and the volume of sewing arm is smaller, and carry out when sewing is processed more flexibly and conveniently, and sweeping cut cutting knife has higher structural strength, and shearing force is bigger, and trimming action is more smooth, stable and reliable, and trimming is more agile.
Description
Technical field
The present invention relates to industrial sewing machine technical field, more particularly, to a kind of sewing machine for improving automatic shearing mechanism.
Background technology
Industrial sewing machine (being commonly called as sewing machine) is provided with sewing arm of the protrusion on panel, and the top of sewing arm is provided with
Rotation shuttle seat and cutting facility, if Patent No. " ZL200910048135.4 ", patent name are a kind of " automatic shearing of sewing machine
Shown in the Chinese invention patent of device ", cutting knife and fixed blade are installed above rotation shuttle seat, fixed blade is arranged on cutting knife
The left side of drive shaft, cutting knife are the right positions that cutter driving axle is fixed on by support, and cutting knife is driven by cutter driving axle
Rotation, cutting knife is set to coordinate with fixed blade shearing, so as to realize trimming function.The structure design of the cutting knife of prior art does not conform to
, often there is the phenomenon that can not cut off line in reason, and trimming action be not sufficiently stable and reliably.Further, since cutting knife and support are convex
Go out on the right side of cutter driving axle, in order to which cutting knife and support are housed in sewing arm, need to increase on the right side of sewing arm, therefore
The overall volume of sewing arm is bigger than normal.When sewing toe-cap, it is necessary to toe-cap is enclosed on sewing arm, and the inner space of toe-cap etc.
Very little, the rotation space very little of toe-cap, sewing toe-cap is extremely difficult, is often subject to the interference and stop of sewing arm, influences to sew
Quality, reduce processing efficiency, it is therefore necessary to give and improve.
The content of the invention
In view of the deficienciess of the prior art, it is an object of the invention to provide a kind of sewing for improving automatic shearing mechanism
Machine, it is simple in construction, and the volume of sewing arm is smaller, and carry out when sewing is processed more flexibly and conveniently.
In view of the deficienciess of the prior art, it is a further object of the present invention to provide a kind of seam for improving automatic shearing mechanism
Thread machine, sweep that cut cutter structure intensity is higher, and shearing force is bigger, trimming action is more smooth, stable and reliable, and trimming is more sharp
Rope.
To achieve these goals, the technical solution adopted in the present invention is.
A kind of sewing machine for improving automatic shearing mechanism, including the sewing arm on sewing machine panel is protruded, sewing arm
Upper left quarter is fixed with a fixation sewing lid, is provided with sewing arm and sweeps cut cutting knife, and the outside side of sewing arm is set as left side,
The inside of sewing arm is rotatably installed with rotating shuttle power transmission shaft and cutter driving axle respectively, and cutter driving axle sleeve is mounted in rotating shuttle power transmission shaft
Outer rim, is provided with the rotation shuttle seat for placing rotating shuttle at the top of rotating shuttle power transmission shaft, and the top panel of fixed sewing lid is has needle plate, pin
The bottom surface of plate is fixed with fixed blade；Cutting knife activity space is provided with below needle plate, cutting knife activity space is located at fixed sewing
Between the side wall and cutter driving axle of lid；Sweep cut cutting knife and be fixed on cutter driving axle, sweep cut cutting knife and be arranged at cutting knife activity
Space, the top for sweeping cut cutting knife are provided with cutter hub；Cut cutting knife is swept during a trimming below fixed sewing lid
Cutting knife activity space moves back and forth once, and the cutter hub and fixed blade shearing for sweeping cut cutting knife coordinate.
In further technical scheme, the sewing machine is provided with rotating shuttle transmission mechanism and for driving the cutter driving
Axle determines angle reciprocating rotary knife drive mechanism, and rotating shuttle transmission mechanism connects the rotating shuttle power transmission shaft, knife drive mechanism connection
Cutter driving axle, cutter driving axle, which drives, during a trimming sweeps cut cutting knife on the cutting knife activity space arcuately road
Footpath is back and forth swept once；The bottom surface of the needle plate offers a deep-slotted chip breaker, and the fixed blade is fixed in deep-slotted chip breaker, fixing cutter
Piece is located at one end of deep-slotted chip breaker, and in an initial condition, fixed blade and cutter hub are located at the both ends of deep-slotted chip breaker, the knife in trimming respectively
Body is mobile to fixed blade in deep-slotted chip breaker interior edge curved path and coordinates with fixed blade shearing.
In further technical scheme, the needle plate offers a lower pinhole, and lower pinhole penetrates downwards the deep-slotted chip breaker, under
Pin hole is located at the medium position of deep-slotted chip breaker；In original state, the cutter hub and the fixed blade are located under lower pinhole respectively
Two side positions of side；When cutter hub coordinates with fixed blade shearing, cutter hub is overlapped in deep-slotted chip breaker up and down with fixed blade；It is described
The upper right quarter of sewing arm is connected with a movable sewing lid that can be opened or remove, fixed sewing lid and movable sewing lid or so split
And coat the top of sewing arm；Cutter driving axle is arranged on position to the right below fixed sewing lid.
In further technical scheme, the cut cutting knife of sweeping includes linking integral fixed part, supporting plate and described
The supporting plate is extended in cutter hub, the upward bending in top of fixed part, and the upper end of supporting plate is towards interior side direction transverse fold
Go out the cutter hub；
The cutter driving axle is fixed with chuck, and fixed part is fixed on chuck, and cutter hub exists when cutter driving axle rotates back and forth
Back and forth walked in the circular annular region of cutter driving axle outer rim.
In further technical scheme, one end of the cutter hub towards fixed blade is leading section, the leading section of cutter hub into
Type has the oblique hooking portion of inclination or arc, and the top surface of cutter hub offers a pressuring line groove, and the outer end of pressuring line groove stretches out simultaneously
Oblique hooking portion is penetrated into, for catching on line to be sheared during sweeping to fixed blade, the inner end of pressuring line groove is opened
Provided with a trimming mating holes, trimming mating holes penetrates cutter hub, and the top edge of trimming mating holes is arranged to a shearing edge, described
Fixed blade forms cut part towards the bottom margin of the side of the cutter hub, and cut part coordinates with shearing edge shearing.
In further technical scheme, pressure-ray film is provided with the deep-slotted chip breaker, pressure-ray film is fixed on the fixed blade
Lower section, pressure-ray film middle part downward bending go out a line ball shell fragment, the line ball shell fragment when the cutter hub coordinates with fixed blade shearing
End elasticity is resisted against the pressuring line groove, for line to be sheared to be pushed down to the bottom land in pressuring line groove.
In further technical scheme, the oblique hooking portion is inside portion, connected towards the side of the cutter driving axle
The side for being connected to the supporting plate is outside portion, and the inside portion in oblique hooking portion is shaped to a tip, the outside in oblique hooking portion
Portion forms arc gear line portion, and tip is protruded preceding.
In further technical scheme, the upper and lower ends in the arc gear line portion penetrate up and down the two of the cutter hub respectively
Face, arc keeps off the first side of line portion, and tangent, the second side and the supporting plate are tangent with oblique hooking portion；The cut part protrusion is in knife
The bottom margin of body, cut part are vertical plane towards the end face of cutter hub, and the bottom surface of cut part is arcwall face.
In further technical scheme, the supporting plate is curved panel, and curved panel has arc-shaped concave, supporting plate
Arc-shaped concave is located at the top of the arc-shaped concave of supporting plate towards the cutter driving axle, cutter hub.
In further technical scheme, the supporting plate is provided with a wing plate, wing plate backwards to the side of the fixed blade
It is the curved panel extended laterally from the rearward end of the cutter hub, the top of wing plate flushes with the top surface of the cutter hub；
The inner surface of the wing plate forms jog, and the thickness of extension board bottom is more than the thickness on top.
The invention has the advantages that compared with the prior art,：The present invention is simple in construction, and the volume of sewing arm is smaller, enters
During row sewing processing more flexibly and conveniently.
In addition, the cut cutting knife of sweeping of the present invention has higher structural strength, shearing force is bigger, and trimming action is more suitable
Freely, stable and reliable, trimming is more agile.
Brief description of the drawings
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the structural representation at another visual angle of the present invention.
Fig. 3 is the structural representation swept when cut cutting knife is in original state with fixed blade of the present invention.
The cut cutting knife of sweeping that Fig. 4 is the present invention is swept to structural representation during fixed blade.
Fig. 5 is the structural representation for sweeping cut cutting knife of the present invention.
Fig. 6 is the top view for sweeping cut cutting knife of the present invention.
In figure：
1st, cut cutting knife 10, shearing edge 11, cutter hub 12, fixed part 13, supporting plate 14, mounting hole 15, oblique hooking are swept
Portion 16, pressuring line groove 17, trimming mating holes 18, arc gear line portion 19, wing plate.
2nd, cutter driving axle 21, chuck.
3rd, fixed sewing lid 31, lower pinhole 32, deep-slotted chip breaker 33, needle plate.
4th, fixed blade 41, cut part.
5th, rotating shuttle power transmission shaft.
6th, pressure-ray film 61, line ball shell fragment.
Embodiment
As described below is only presently preferred embodiments of the present invention, is not intended to limit the scope of the present invention.
A kind of sewing machine for improving automatic shearing mechanism, as shown in Fig. 1 to 6, including protrude the car on sewing machine panel
Arm is stitched, is provided with sewing arm and sweeps cut cutting knife 1, the upper left quarter of sewing arm is fixed with a fixation sewing lid 3, and sewing arm is outside
Side is set as left side, and the inside of sewing arm is rotatably installed with rotating shuttle power transmission shaft 5 and cutter driving axle 2, cutter driving axle 2 respectively
The outer rim of rotating shuttle power transmission shaft 5 is sleeved on, cutter driving axle 2 is co-axially mounted with rotating shuttle power transmission shaft 5, and cutter driving axle 2 passes with rotating shuttle
Moving axis 5 is not interfere with each other, each independent rotation.Some bearing blocks, cutter driving axle 2 and rotating shuttle power transmission shaft 5 are fixed in sewing arm
Rotation is installed on corresponding bearing block respectively, and the outer rim of cutter driving axle 2 is also equipped with fixing axle and/or protective case.Rotating shuttle passes
The top of moving axis 5 is provided with the rotation shuttle seat for placing rotating shuttle, and the upper right quarter of sewing arm is connected with the work that can be opened or remove
Motor-car seam lid, fixed sewing lid 3 and movable sewing lid or so split simultaneously coat the top of sewing arm；Cutter driving axle 2 is arranged on
The fixed lower section of sewing lid 3 position to the right.In order to preferably show the innovation structure of the present invention, sewing arm, rotation are not drawn into figure
Shuttle seat and movable sewing lid.
Sewing machine is provided with rotating shuttle transmission mechanism and for driving cutter driving axle 2 to determine angle reciprocating rotary cutter driving machine
Structure, rotating shuttle transmission mechanism connection rotating shuttle power transmission shaft 5, knife drive mechanism connection cutter driving axle 2, knife drive mechanism connection is cut
The bottom of knife drive shaft 2.Knife drive mechanism can be electromagnetic drive mechanism or motor-driven mechanism or by sewing
The drive mechanism that the transmission mechanism drive connection of machine comes, as long as realizing that it is reciprocal to determine angle for driving cutter driving axle 2 in trimming
The function of rotation once, i.e., cutter driving axle 2 drives and sweeps cut cutting knife 1 in cutting knife activity space during a trimming
Arcuately path is back and forth swept once.Rotating shuttle transmission mechanism and knife drive mechanism are not drawn into figure.
Wherein, for the top panel of fixed sewing lid 3 to there is needle plate 33, the bottom surface of needle plate 33 is fixed with fixed blade 4；Needle plate 33
Lower section be provided with cutting knife activity space, cutting knife activity space is located between side wall and the cutter driving axle 2 of fixed sewing lid 3；
Sweep cut cutting knife 1 and be fixed on cutter driving axle 2, sweep cut cutting knife 1 and be arranged at cutting knife activity space, sweep the top of cut cutting knife 1
It is provided with cutter hub 11；Cutting knife activity space of the cut cutting knife 1 below fixed sewing lid 3 is swept during a trimming to move back
The dynamic cutter hub 11 and the fixed shearing of blade 4 for once, sweeping cut cutting knife 1 coordinates.
The present invention will sweep cut cutting knife 1 and change from the right side of cutter driving axle 2 to the left side of cutter driving axle 2, further contracting
The volume of small sewing arm, the volume on the head of sewing arm is smaller, has more rotation spaces to be set in the toe-cap of sewing arm,
In sewing, toe-cap can be rotated more neatly, will not by the interference and stop of sewing arm, therefore, can with sewing quality,
Improve processing efficiency.
The bottom surface of needle plate 33 offers a deep-slotted chip breaker 32, and fixed blade 4 is fixed in deep-slotted chip breaker 32, and fixed blade 4 is located at
One end of deep-slotted chip breaker 32, in an initial condition, fixed blade 4 and cutter hub 11 are located at the both ends of deep-slotted chip breaker 32 respectively, in trimming
Cutter hub 11 is moved to fixed blade 4 in the interior edge curved path of deep-slotted chip breaker 32 and coordinated with the fixed shearing of blade 4.Needle plate 33 offers
One lower pinhole 31, lower pinhole 31 penetrate downwards deep-slotted chip breaker 32, and lower pinhole 31 is located at the medium position of deep-slotted chip breaker 32；In original state
When, cutter hub 11 and fixed blade 4 are respectively positioned at two side positions of the lower section of lower pinhole 31；Match somebody with somebody in cutter hub 11 and the fixed shearing of blade 4
During conjunction, cutter hub 11 is overlapped in deep-slotted chip breaker 32 with fixed blade about 4.
Sweeping cut cutting knife 1 includes linking integral fixed part 12, supporting plate 13 and cutter hub 11, the top of fixed part 12 to
Supporting plate 13 is extended in upper bending, and the upper end of supporting plate 13 goes out cutter hub 11 towards interior side direction transverse fold；Cutter driving axle 2
One chuck 21 is fixed with by screw locking, fixed part 12 is fixed on chuck 21 by screw locking, and cutter driving axle 2 circles round
Cutter hub 11 is back and forth walked in the circular annular region of the outer rim of cutter driving axle 2 when turning.The volume for making entirely to sweep cut cutting knife 1 becomes
It is smaller, sweep that cut cutting knife 1 is more compact, sweep cut cutting knife 1 and be located in the annular region of the outer rim of cutter driving axle 2, follow cutting knife
Drive shaft 2 rotates, and realizes that trimming acts.
One end of cutter hub 11 towards fixed blade 4 be leading section, the leading section of cutter hub 11 form tilt or arc it is oblique
To hooking portion 15, the top surface of cutter hub 11 offers a pressuring line groove 16, and the outer end of pressuring line groove 16 stretches out and is penetrated into oblique
Hooking portion 15, for catching on line to be sheared during sweeping to fix blade 4, the inner end of pressuring line groove 16 offers one
Trimming mating holes 17, trimming mating holes 17 penetrate cutter hub 11, and the top edge of trimming mating holes 17 is arranged to a shearing edge 10,
Fixed blade 4 forms cut part 41 towards the bottom margin of the side of cutter hub 11, and cut part 41 is matched somebody with somebody with the shearing of shearing edge 10
Close.The specially designed shape of cutter hub 11, volume is smaller, and shearing force is bigger, and can improve the stability and reliability of trimming action,
Trimming is more agile.
Pressure-ray film 6 is provided with deep-slotted chip breaker 32, pressure-ray film 6 is fixed on the fixed lower section of blade 4, and the middle part of pressure-ray film 6 is rolled over downwards
A line ball shell fragment 61 is bowed out, the end elasticity of line ball shell fragment 61 is resisted against line ball when cutter hub 11 coordinates with the fixed shearing of blade 4
Groove 16, for line to be sheared to be pushed down to the bottom land in pressuring line groove 16, line is pushed down in trimming, improve thread trimming stability, and
The end of a thread can be made to keep certain surplus.
Oblique hooking portion 15 towards the side of cutter driving axle 2 be inside portion, be connected to supporting plate 13 side be outside
Portion, the inside portion in oblique hooking portion 15 are shaped to a tip, and the outside portion in oblique hooking portion 15 forms arc gear line portion 18,
Protrude preceding tip.The upper and lower ends in arc gear line portion 18 penetrate the upper and lower surface of cutter hub 11, arc gear line portion 18 first respectively
Side and oblique hooking portion 15 are tangent, the second side and supporting plate 13 are tangent；The bottom margin in cutter hub 11 is protruded in cut part 41, shearing
Portion 41 is vertical plane towards the end face of cutter hub 11, and the bottom surface of cut part 41 is arcwall face, has automatic sharpening function, makes shearing
Portion 41 keeps sharp state for a long time.
Supporting plate 13 is curved panel, and curved panel has arc-shaped concave, and the arc-shaped concave of supporting plate 13 drives towards cutting knife
Moving axis 2, cutter hub 11 are located at the top of the arc-shaped concave of supporting plate 13.Supporting plate 13 is provided with one backwards to the side of fixed blade 4
Wing plate 19, wing plate 19 are the curved panel extended laterally from the rearward end of cutter hub 11, the top of wing plate 19 and cutter hub 11
Top surface flush；The inner surface of wing plate 19 forms jog, and the thickness of extension board bottom is more than the thickness on top.It is specifically designed
Wing plate 19 can effectively improve the structural strength for sweeping cut cutting knife 1, while avoid sweeping cut cutting knife 1 in sweeping process and trimming
During occur shaking or rock, improve the stability and reliability of trimming process.
Above content is only presently preferred embodiments of the present invention, for one of ordinary skill in the art, according to the present invention's
Thought, there will be changes, this specification content should not be construed as to the present invention in specific embodiments and applications
Limitation.
Claims (9)
1. a kind of sewing machine for improving automatic shearing mechanism, including protrude the sewing arm on sewing machine panel, a left side for sewing arm
Top is fixed with a fixation sewing lid (3), and the outside side of sewing arm is set as left side, and the inside of sewing arm rotates installation respectively
There are rotating shuttle power transmission shaft (5) and cutter driving axle (2), cutter driving axle (2) is sleeved on the outer rim of rotating shuttle power transmission shaft (5), and rotating shuttle passes
The rotation shuttle seat for placing rotating shuttle is provided with the top of moving axis (5), it is characterised in that：Including sweeping cut cutting knife (1),
For the top panel of fixed sewing lid (3) to there is needle plate (33), the bottom surface of needle plate (33) is fixed with fixed blade (4)；
Cutting knife activity space is provided with below needle plate (33), cutting knife activity space is located at the side wall of fixed sewing lid (3) and cut
Between knife drive shaft (2)；
Sweep cut cutting knife (1) and be fixed on cutter driving axle (2), sweep cut cutting knife (1) and be arranged at cutting knife activity space, sweep cut and cut
The top of knife (1) is provided with cutter hub (11)；
Cutting knife activity space of the cut cutting knife (1) below fixed sewing lid (3) is swept during a trimming and moves back and forth one
Secondary, the cutter hub (11) and fixed blade (4) shearing for sweeping cut cutting knife (1) coordinate；
The sewing machine is provided with rotating shuttle transmission mechanism and for driving the cutter driving axle (2) to determine angle reciprocating rotary cutting knife
Drive mechanism, rotating shuttle transmission mechanism connect the rotating shuttle power transmission shaft (5), knife drive mechanism connection cutter driving axle (2), one
Cutter driving axle (2) drives and sweeps cut cutting knife (1) arcuately path is back and forth swept in the cutting knife activity space during secondary trimming
Move once；
The bottom surface of the needle plate (33) offers a deep-slotted chip breaker (32), and the fixed blade (4) is fixed in deep-slotted chip breaker (32), Gu
Ledger-plate (4) is located at one end of deep-slotted chip breaker (32), and in an initial condition, fixed blade (4) and cutter hub (11) are located at arc respectively
The both ends of groove (32), in trimming, cutter hub (11) is mobile to fixation blade (4) in deep-slotted chip breaker (32) interior edge curved path and with consolidating
Ledger-plate (4) shearing coordinates.
A kind of 2. sewing machine for improving automatic shearing mechanism according to claim 1, it is characterised in that：The needle plate (33)
A lower pinhole (31) is offered, lower pinhole (31) penetrates downwards the deep-slotted chip breaker (32), and lower pinhole (31) is located at deep-slotted chip breaker (32)
Medium position；
In original state, the cutter hub (11) and the fixed blade (4) the both sides position below lower pinhole (31) respectively
Put；When cutter hub (11) coordinates with fixed blade (4) shearing, cutter hub (11) is overlapped in deep-slotted chip breaker up and down with fixed blade (4)
(32) in；
The upper right quarter of the sewing arm is connected with a movable sewing lid that can be opened or remove, fixed sewing lid (3) and moveable cart
Seam lid left and right split simultaneously coats the top of sewing arm；Cutter driving axle (2) is arranged on position to the right below fixed sewing lid (3)
Put.
A kind of 3. sewing machine for improving automatic shearing mechanism according to claim 1 or 2, it is characterised in that：Described sweep is cut
Formula cutting knife (1) includes linking integral fixed part (12), supporting plate (13) and the cutter hub (11), the top of fixed part (12)
The supporting plate (13) is extended in upward bending, and the upper end of supporting plate (13) goes out the cutter hub towards interior side direction transverse fold
(11)；
The cutter driving axle (2) is fixed with chuck (21), and fixed part (12) is fixed on chuck (21), and cutter driving axle (2) comes
Cutter hub (11) is back and forth walked in the circular annular region of cutter driving axle (2) outer rim when convolution turns.
A kind of 4. sewing machine for improving automatic shearing mechanism according to claim 3, it is characterised in that：The cutter hub (11)
One end towards fixed blade (4) is leading section, and the leading section of cutter hub (11) forms the oblique hooking portion of inclination or arc
(15), the top surface of cutter hub (11) offers a pressuring line groove (16), and the outer end of pressuring line groove (16) stretches out and is penetrated into oblique
Hooking portion (15), for catching on line to be sheared during sweeping to fixed blade (4), the inner end of pressuring line groove (16) opens up
There is a trimming mating holes (17), trimming mating holes (17) penetrates cutter hub (11), and the top edge of trimming mating holes (17) is arranged to
One shearing edge (10), the bottom margin of side of the fixed blade (4) towards the cutter hub (11) form cut part
(41), cut part (41) coordinate with shearing edge (10) shearing.
A kind of 5. sewing machine for improving automatic shearing mechanism according to claim 4, it is characterised in that：The deep-slotted chip breaker
(32) pressure-ray film (6) is provided with, pressure-ray film (6) is fixed on below the fixed blade (4), is rolled over downwards in the middle part of pressure-ray film (6)
A line ball shell fragment (61) is bowed out, the end bullet of line ball shell fragment (61) when the cutter hub (11) coordinates with fixed blade (4) shearing
Property is resisted against the pressuring line groove (16), for line to be sheared to be pushed down to the bottom land in pressuring line groove (16).
A kind of 6. sewing machine for improving automatic shearing mechanism according to claim 5, it is characterised in that：The oblique hooking
Portion (15) towards the side of the cutter driving axle (2) be inside portion, the side that is connected to the supporting plate (13) be outside portion,
The inside portion of oblique hooking portion (15) is shaped to a tip, and the outside portion of oblique hooking portion (15) forms arc gear line portion
(18), tip protrusion is preceding.
A kind of 7. sewing machine for improving automatic shearing mechanism according to claim 6, it is characterised in that：The arc keeps off line
The upper and lower ends in portion (18) penetrate the upper and lower surface of the cutter hub (11), the side of arc gear line portion (18) first and oblique hooking respectively
Portion (15) is tangent, the second side and the supporting plate (13) are tangent；The cut part (41) protrudes the bottom margin in cutter hub (11),
Cut part (41) is vertical plane towards the end face of cutter hub (11), and the bottom surface of cut part (41) is arcwall face.
A kind of 8. sewing machine for improving automatic shearing mechanism according to claim 6, it is characterised in that：The supporting plate
(13) it is curved panel, curved panel has an arc-shaped concave, and the arc-shaped concave of supporting plate (13) is towards the cutter driving axle
(2), cutter hub (11) is located at the top of the arc-shaped concave of supporting plate (13).
A kind of 9. sewing machine for improving automatic shearing mechanism according to claim 6, it is characterised in that：The supporting plate
(13) side of the fixed blade (4) is provided with a wing plate (19), wing plate (19) is from the rear end of the cutter hub (11)
The curved panel that portion extends laterally, the top of wing plate (19) flush with the top surface of the cutter hub (11)；The wing plate
(19) inner surface forms jog, and the thickness of extension board bottom is more than the thickness on top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611252757.5A CN106757849B (en) | 2016-12-30 | 2016-12-30 | A kind of sewing machine for improving automatic shearing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611252757.5A CN106757849B (en) | 2016-12-30 | 2016-12-30 | A kind of sewing machine for improving automatic shearing mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106757849A CN106757849A (en) | 2017-05-31 |
| CN106757849B true CN106757849B (en) | 2018-01-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611252757.5A Active CN106757849B (en) | 2016-12-30 | 2016-12-30 | A kind of sewing machine for improving automatic shearing mechanism |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110079944A (en) * | 2019-05-08 | 2019-08-02 | 本佳安凯（湖南）缝制机械有限公司 | Sewing machine needle plate |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5340353A (en) * | 1976-09-24 | 1978-04-12 | Aisin Seiki | Automatic yarn cutter for sewing machine |
| US4586449A (en) * | 1983-01-29 | 1986-05-06 | Kochs Adler Ag | Thread cutting devices for double lockstitch sewing machines |
| CN1385572A (en) * | 2001-05-11 | 2002-12-18 | 杜尔克普-阿德勒股份公司 | Double-locking type stitching sewing machine with one sik yarn cutter |
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| CN103173942A (en) * | 2011-12-26 | 2013-06-26 | Juki株式会社 | Sewing machine |
| CN206457614U (en) * | 2016-12-30 | 2017-09-01 | 东莞市飞越机械有限公司 | A kind of sewing machine for improving automatic shearing mechanism |
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| JPS5340353A (en) * | 1976-09-24 | 1978-04-12 | Aisin Seiki | Automatic yarn cutter for sewing machine |
| US4586449A (en) * | 1983-01-29 | 1986-05-06 | Kochs Adler Ag | Thread cutting devices for double lockstitch sewing machines |
| CN1385572A (en) * | 2001-05-11 | 2002-12-18 | 杜尔克普-阿德勒股份公司 | Double-locking type stitching sewing machine with one sik yarn cutter |
| JP2009011547A (en) * | 2007-07-04 | 2009-01-22 | Juki Corp | Sewing machine |
| CN101845722A (en) * | 2009-03-24 | 2010-09-29 | 启翔针车（上海）有限公司 | Automatic thread cutting device of sewing machine |
| CN103173942A (en) * | 2011-12-26 | 2013-06-26 | Juki株式会社 | Sewing machine |
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| CN106757849A (en) | 2017-05-31 |
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Effective date of registration: 20220426 Address after: 341000 east side of Xinfeng County Industrial Park Management Committee, Ganzhou City, Jiangxi Province Patentee after: Ganzhou Feiyue Intelligent Technology Co.,Ltd. Address before: 523000 Xinxing Road, xiashijiao group, Yongkou village, Houjie Town, Dongguan City, Guangdong Province Patentee before: FEIYUE MACHINE CO.,LTD. |