CN106757849A - A kind of sewing machine for improving automatic shearing mechanism - Google Patents
A kind of sewing machine for improving automatic shearing mechanism Download PDFInfo
- Publication number
- CN106757849A CN106757849A CN201611252757.5A CN201611252757A CN106757849A CN 106757849 A CN106757849 A CN 106757849A CN 201611252757 A CN201611252757 A CN 201611252757A CN 106757849 A CN106757849 A CN 106757849A
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- China
- Prior art keywords
- sewing
- cutting knife
- fixed
- cutter hub
- driving axle
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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
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- 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
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- 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, outer rim of the cutter driving axle sleeve mounted in rotating shuttle power transmission shaft, the rotation shuttle seat for placing rotating shuttle is provided with the top of rotating shuttle power transmission shaft, the top panel of fixed sewing lid is that the bottom surface for having needle plate, needle plate is fixed with fixed blade；Cutting knife activity space is provided with below needle plate, cutting knife activity space is located between the side wall of fixed sewing lid and cutter driving axle；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.Simple structure of the present invention, the volume of sewing arm is smaller, and carry out when sewing is processed more flexibly and conveniently, sweeps cut cutting knife with structural strength higher, 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, such as 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 is the right positions that cutter driving axle is fixed on by support, and cutting knife is driven by cutter driving axle
Rotation, makes cutting knife 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 cannot be cut off line in reason, and trimming action is not sufficiently stable and reliable.Further, since cutting knife and support are convex
Go out on the right side of cutter driving axle, in order to cutting knife and support are housed in sewing arm, increase is needed on the right side of sewing arm, therefore
The overall volume of sewing arm is bigger than normal.When toe-cap is sewed, it is necessary to toe-cap is enclosed within 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, influence sewing
Quality, reduces processing efficiency, it is therefore necessary to give and improve.
The content of the invention
In view of the shortcomings of the prior art, it is an object of the invention to provide a kind of sewing for improving automatic shearing mechanism
Machine, its simple structure, the volume of sewing arm is smaller, and carry out when sewing is processed more flexibly and conveniently.
In view of the shortcomings 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, shearing force is bigger, trimming action is more smooth, stabilization and reliable, and trimming is more sharp
Rope.
To achieve these goals, the technical solution adopted in the present invention is.
It is a kind of to improve the sewing machine of 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, the top panel of fixed sewing lid is have 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 is provided with cutter hub；Cut cutting knife is swept during a trimming to fix below 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 drives and sweeps cut cutting knife on the cutting knife activity space arcuately road during a trimming
Footpath back and forth sweeps 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 respectively positioned at the two ends of deep-slotted chip breaker, the knife in trimming
Arcuately path coordinates body to fixed blade movement and with fixed blade shearing in deep-slotted chip breaker.
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 fixed sewing lid lower section position to the right.
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 inner 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 is rotated back and forth
Back and forth walked in the circular annular region of cutter driving axle outer rim.
In further technical scheme, the cutter hub towards one end of fixed blade be leading section, the leading section of cutter hub into
Type has the oblique hook line 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 hook line 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
A trimming mating holes is provided with, 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 is sheared with shearing edge and coordinated.
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 goes 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 the bottom land in pressuring line groove.
In further technical scheme, the oblique hook line portion is inside portion, connects towards the side of the cutter driving axle
The side of the supporting plate is connected to for outside portion, the inside portion in oblique hook line portion is shaped to a tip, the outside in oblique hook line 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 gear the first side of line portion is tangent with oblique hook line portion, the second side is tangent with the supporting plate；The cut part protrusion is in knife
The bottom margin of body, cut part is 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 side of the supporting plate dorsad fixed blade is provided with a wing plate, wing plate
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, the thickness of the thickness more than top of extension board bottom.
The invention has the advantages that compared with the prior art,：Simple structure of the present invention, the volume of sewing arm is smaller, enters
During row sewing processing more flexibly and conveniently.
In addition, cut cutting knife of sweeping of the invention is with structural strength higher, shearing force is bigger, and trimming action is more suitable
Freely, stabilization and reliability, trimming are more agile.
Brief description of the drawings
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1 is structural representation of the invention.
Fig. 2 is the structural representation at another visual angle of the invention.
Fig. 3 is cut cutting knife of sweeping of the invention with structural representation when fixing blade in original state.
Fig. 4 is that cut cutting knife of sweeping of the invention sweeps structural representation during to fixed blade.
Fig. 5 is the structural representation for sweeping cut cutting knife of the invention.
Fig. 6 is the top view for sweeping cut cutting knife of the invention.
In figure：
1st, cut cutting knife 10, shearing edge 11, cutter hub 12, fixed part 13, supporting plate 14, mounting hole 15, oblique hook line 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.
Specific 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 protrudes the car on sewing machine panel
Seam arm, is provided with sewing arm and sweeps cut cutting knife 1, and 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, cutter driving axle 2 is passed with rotating shuttle
Moving axis 5 does 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 respectively is installed on corresponding bearing block, and the outer rim of cutter driving axle 2 is also equipped with fixing axle and/or protective case.Rotating shuttle is passed
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, fixes sewing lid 3 and movable sewing lid or so split and coats the top of sewing arm；Cutter driving axle 2 is arranged on
The fixed lower section of sewing lid 3 position to the right.Sewing arm, rotation are not drawn into order to preferably show innovation structure of the invention, in 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 transmission mechanism drive mechanism that comes of drive connection of machine, as long as realizing driving cutter driving axle 2 to determine angle in trimming reciprocal
Rotation function once, i.e., cutter driving axle 2 drives and sweeps cut cutting knife 1 in cutting knife activity space during a trimming
Arcuately path back and forth sweeps once.Rotating shuttle transmission mechanism and knife drive mechanism are not drawn into figure.
Wherein, the top panel of fixed sewing lid 3 is that the bottom surface for having needle plate 33, 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 the side wall of fixed sewing lid 3 and cutter driving axle 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 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 to the left side of cutter driving axle 2 from the right side of cutter driving axle 2, further contracting
The volume of small sewing arm, the volume of the head of sewing arm is smaller, for the toe-cap for being set in sewing arm has more rotation spaces,
In sewing, toe-cap can be rotated more neatly, will not be subject to the interference and stop of sewing arm, therefore, it can 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, fixes blade 4 and cutter hub 11 respectively positioned at the two ends of deep-slotted chip breaker 32, in trimming
Cutter hub 11 in deep-slotted chip breaker 32 arcuately to fixed blade 4 move and coordinate with the fixed shearing of blade 4 by path.Needle plate 33 is offered
One lower pinhole 31, lower pinhole 31 penetrates 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 with the fixed shearing of blade 4 in cutter hub 11
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 inner 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, 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.Become the volume for entirely sweeping cut cutting knife 1
It is smaller, sweep that cut cutting knife 1 is more compact, cut cutting knife 1 is swept in the annular region of the outer rim of cutter driving axle 2, follow cutting knife
Drive shaft 2 rotates, and realizes that trimming is acted.
Cutter hub 11 is leading section towards one end of fixed blade 4, and the leading section of cutter hub 11 forms the oblique of inclination or arc
To line portion 15 is hooked, 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
Line portion 15 is hooked, 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 penetrates 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 shape of specially designed 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 lower section of fixed 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 the bottom land in pressuring line groove 16, pushes down line in trimming, improves thread trimming stability, and
The end of a thread can be made to keep certain surplus.
It is oblique hook line portion 15 towards the side of cutter driving axle 2 be inside portion, the side that is connected to supporting plate 13 be outside
Portion, the inside portion in oblique hook line portion 15 is shaped to a tip, and the outside portion in oblique hook line 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 is tangent with tangent, the second side in oblique hook line portion 15 and supporting plate 13；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, with automatic sharpening function, makes shearing
Portion 41 keeps sharp state for a long time.
Supporting plate 13 is curved panel, and the arc-shaped concave that curved panel has arc-shaped concave, supporting plate 13 drives towards cutting knife
Moving axis 2, cutter hub 11 is located at the top of the arc-shaped concave of supporting plate 13.The side that supporting plate 13 dorsad fixes blade 4 is provided with one
Wing plate 19, wing plate 19 is the curved panel extended laterally from the rearward end of cutter hub 11, top and the cutter hub 11 of wing plate 19
Top surface flush；The inner surface of wing plate 19 forms jog, the thickness of the thickness more than top of extension board bottom.It is specifically designed
Wing plate 19 can effectively improve the structural strength for sweeping cut cutting knife 1, while avoiding sweeping cut cutting knife 1 in sweeping process and trimming
During occur shake or rock, improve trimming process stability and reliability.
Above content is only presently preferred embodiments of the present invention, for one of ordinary skill in the art, according to of the invention
Thought, will change in specific embodiments and applications, and this specification content should not be construed as to the present invention
Limitation.
Claims (10)
1. it is a kind of to improve the sewing machine of automatic shearing mechanism, including protrude the sewing arm on sewing machine panel, a left side for sewing arm
Top is fixed with 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 is passed
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),
The top panel of fixed sewing lid (3) is that the bottom surface for having needle plate (33), 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 cuts
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.
2. a kind of sewing machine for improving automatic shearing mechanism according to claim 1, it is characterised in that：The sewing machine sets
It is equipped with rotating shuttle transmission mechanism and for driving the cutter driving axle (2) to determine angle reciprocating rotary knife drive mechanism, rotating shuttle is passed
Motivation structure connects the rotating shuttle power transmission shaft (5), and knife drive mechanism connects cutter driving axle (2), cut during a trimming
Cut cutting knife (1) is swept in knife drive shaft (2) drive, and in the cutting knife activity space, arcuately path back and forth sweeps 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
Positioned at one end of deep-slotted chip breaker (32), in an initial condition, fixed blade (4) and cutter hub (11) are located at arc to ledger-plate (4) respectively
The two ends of groove (32), in trimming cutter hub (11) in the deep-slotted chip breaker (32) arcuately path to fixed blade (4) it is mobile and with it is solid
Ledger-plate (4) shearing coordinates.
3. a kind of sewing machine for improving automatic shearing mechanism according to claim 2, 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 positioned at deep-slotted chip breaker (32)
Medium position；
In original state, the cutter hub (11) and the fixed blade (4) both sides position respectively below lower pinhole (31)
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
Stitch lid left and right split and coat the top of sewing arm；Cutter driving axle (2) is arranged on fixed sewing lid (3) lower section position to the right
Put.
4. according to a kind of sewing machine of the described improvement automatic shearing mechanism of one of claims 1 to 3, it is characterised in that：It is described
Cut cutting knife (1) is swept including linking integral fixed part (12), supporting plate (13) and the cutter hub (11), fixed part (12)
The supporting plate (13) is extended in the upward bending in top, and the upper end of supporting plate (13) goes out described towards inner side direction transverse fold
Cutter hub (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.
5. a kind of sewing machine for improving automatic shearing mechanism according to claim 4, 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 hook line 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
Line portion (15) is hooked, for catching on line to be sheared during (4) to fixed blade are swept, the inner end of pressuring line groove (16) is opened
A trimming mating holes (17) is provided with, trimming mating holes (17) penetrates cutter hub (11), and the top edge of trimming mating holes (17) is set
Into a shearing edge (10), the bottom margin of side of the fixed blade (4) towards the cutter hub (11) forms cut part
(41), cut part (41) are sheared with shearing edge (10) and are coordinated.
6. a kind of sewing machine for improving automatic shearing mechanism according to claim 5, 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 fixed blade (4) lower section, and pressure-ray film (6) middle part is rolled over downwards
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 the bottom land in pressuring line groove (16).
7. a kind of sewing machine for improving automatic shearing mechanism according to claim 6, it is characterised in that：The oblique hook line
Portion (15) towards the side of the cutter driving axle (2) be inside portion, to be connected to the side of the supporting plate (13) be outside portion,
The oblique inside portion for hooking line portion (15) is shaped to a tip, and the outside portion of oblique hook line portion (15) forms arc gear line portion
(18), tip protrusion is preceding.
8. a kind of sewing machine for improving automatic shearing mechanism according to claim 7, 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 hook line respectively
Portion (15) is tangent, the second side is tangent with the supporting plate (13)；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.
9. a kind of sewing machine for improving automatic shearing mechanism according to claim 7, it is characterised in that：The supporting plate
(13) it is curved panel, curved panel has an arc-shaped concave, the arc-shaped concave of supporting plate (13) is towards the cutter driving axle
(2), cutter hub (11) is positioned at the top of the arc-shaped concave of supporting plate (13).
10. a kind of sewing machine for improving automatic shearing mechanism according to claim 7, it is characterised in that：The supporting plate
(13) dorsad the side of the fixed blade (4) is provided with a wing plate (19), and wing plate (19) is the rear end from the cutter hub (11)
The curved panel that portion extends laterally, the top of wing plate (19) flushes with the top surface of the cutter hub (11)；The wing plate
(19) inner surface forms jog, the thickness of the thickness more than top of extension board bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201611252757.5A CN106757849B (en) | 2016-12-30 | 2016-12-30 | A kind of sewing machine for improving automatic shearing mechanism |
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| 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 |
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| CN106757849A true CN106757849A (en) | 2017-05-31 |
| CN106757849B CN106757849B (en) | 2018-01-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110079944A (en) * | 2019-05-08 | 2019-08-02 | 本佳安凯（湖南）缝制机械有限公司 | A kind of sewing machine needle board |
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| 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 |
| 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 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110079944A (en) * | 2019-05-08 | 2019-08-02 | 本佳安凯（湖南）缝制机械有限公司 | A kind of sewing machine needle board |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106757849B (en) | 2018-01-30 |
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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. |