CN109487446A - A kind of sewing machine - Google Patents
A kind of sewing machine Download PDFInfo
- Publication number
- CN109487446A CN109487446A CN201811543113.0A CN201811543113A CN109487446A CN 109487446 A CN109487446 A CN 109487446A CN 201811543113 A CN201811543113 A CN 201811543113A CN 109487446 A CN109487446 A CN 109487446A
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- China
- Prior art keywords
- differential
- retainer
- cloth
- shaft
- feed dog
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- 238000009958 sewing Methods 0.000 title claims abstract description 34
- 239000004744 fabric Substances 0.000 claims abstract description 71
- 230000007246 mechanism Effects 0.000 claims abstract description 55
- 230000033001 locomotion Effects 0.000 claims abstract description 11
- 230000001105 regulatory effect Effects 0.000 claims description 17
- 238000009434 installation Methods 0.000 claims description 10
- 230000009471 action Effects 0.000 claims description 5
- 230000008859 change Effects 0.000 claims description 2
- 230000035611 feeding Effects 0.000 description 49
- 238000010586 diagram Methods 0.000 description 13
- 239000000463 material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
Classifications
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B27/00—Work-feeding means
- D05B27/24—Feed-dog lifting and lowering devices
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B27/00—Work-feeding means
- D05B27/02—Work-feeding means with feed dogs having horizontal and vertical movements
- D05B27/08—Work-feeding means with feed dogs having horizontal and vertical movements with differential feed motions
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B69/00—Driving-gear; Control devices
- D05B69/10—Electrical or electromagnetic drives
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The invention belongs to sewing device technical fields, refer in particular to a kind of sewing machine；It include spindle motor, main shaft, cloth feeding mechanism, differential retainer, feed dog frame including feed device, main shaft is driven by spindle motor and is rotated, differential tooth and feed dog are respectively arranged on differential retainer and feed dog frame, main shaft is eccentric shaft, main shaft is slidably connected by the first sliding block and the first sliding groove on differential retainer, feed dog frame, and differential retainer and feed dog frame is driven to pump；Cloth feeding mechanism is connect with differential retainer, feed dog frame, and cloth feeding mechanism is acted by work feed motor driven and then drives feed dog frame, differential retainer front-rear reciprocation movement；The present invention can be suitable for various different sewing applications and then different feeding tracks are realized in the control to work feed motor rotational angle and angular speed.
Description
Technical field:
The invention belongs to sewing device technical fields, refer in particular to a kind of sewing machine.
Background technique:
A kind of sewing machine disclosed in the Chinese invention patent application of 106988031 A of application publication number CN, the sewing machine packet
It includes main shaft, one end and differential cloth-feeding retainer, the cloth feed machine for assisting the main feed dog frame of tooth, one end to be only equipped with differential tooth is only installed
Structure and needle gage regulating mechanism, the main shaft is connected with main feed dog frame and differential cloth-feeding retainer respectively by transmission mechanism,
Drive main feed dog frame and differential cloth-feeding retainer to pump, the main shaft by cloth feeding mechanism respectively with main feed dog frame
It is connected with differential cloth-feeding retainer, drives main feed dog frame and differential cloth-feeding retainer front-rear reciprocation movement.
From the foregoing, it will be observed that the differential retainer of main shaft drives, feed dog frame pump, cloth feeding mechanism drives differential tooth
The front-rear reciprocation movement of frame, feed dog frame.Cloth feeding mechanism is connected on main shaft, and cloth feeding mechanism, main shaft are driven by a spindle motor
Movement, therefore, feeding track can not be adjusted.
Summary of the invention:
The object of the present invention is to provide a kind of can be adjusted in turn according to various different sewing applications to form different feedings
The sewing machine of track.
The present invention is implemented as follows:
A kind of sewing machine, including feed device, the feed device include spindle motor, main shaft, electronic type cloth feeding mechanism,
Differential retainer, feed dog frame, main shaft are driven by spindle motor and are rotated, and are respectively arranged with differential tooth on differential retainer and feed dog frame
With feed dog, the main shaft is eccentric shaft, and main shaft is slided by the first sliding groove on the first sliding block and differential retainer, feed dog frame
Connection, and differential retainer and feed dog frame is driven to pump；The cloth feeding mechanism and differential retainer, feed dog frame connect
It connects, cloth feeding mechanism is acted by work feed motor driven and then driven feed dog frame, differential retainer front-rear reciprocation movement, the work feed electricity
The rotational angle and angular speed of machine are controlled by controller.
It further include differential regulating mechanism in a kind of above-mentioned sewing machine, the output end effect of the differential regulating mechanism
In the junction of cloth feeding mechanism and differential retainer, cloth feeding mechanism is changed by differential regulating mechanism and drives differential retainer swing
Amplitude adjusts differential ratio in turn.
In a kind of above-mentioned sewing machine, the cloth feeding mechanism includes the cloth pushing shaft for being parallel to main shaft, is installed in cloth pushing shaft
On feeding crank and differential adjustment frame, feeding crank connect with one end of feeding connecting rod, and the other end of feeding connecting rod passes through pin
Axis is rotatably connected on feed dog frame, and one end of differential adjustment frame is mounting portion, the other end is crank arm, and mounting portion, which is installed in, to be sent
On cloth beam, crank arm is slidably connected with differential retainer.
In a kind of above-mentioned sewing machine, it is provided with second sliding slot along the vertical direction on the leading flank of the differential retainer,
Second sliding block is arranged in second sliding slot, is provided on front side of the second sliding block sliding with the differential adjustment of the second sliding block synchronization action
Block, differential adjustment sliding block are set on crank arm, adjust it is differential than when, the output end of differential regulating mechanism drives differential adjustment cunning
Block moves up on crank arm or moves down the upper and lower position for changing differential adjustment frame and differential retainer tie point.
In a kind of above-mentioned sewing machine, the cloth pushing shaft is connect by link mechanism with work feed motor；The connecting rod machine
Structure includes the first crank that one end is installed on work feed machine shaft, and the other end of the first crank is connect with first connecting rod, and first
The other end of connecting rod is connect with one end of the second crank, and the other end of the second crank is installed on cloth pushing shaft.
In a kind of above-mentioned sewing machine, the differential regulating mechanism includes adjustable plate, differential lever, is arranged on adjustable plate
It is provided with adjusting screw rod along the vertical direction, the pilot hole being arranged along the vertical direction is additionally provided on adjustable plate and arc is adjusted
Hole, the rear side of adjustable plate can be located at along the spigot nut that adjusting screw rod moves, differential lever by being provided on adjusting screw rod, be oriented to spiral shell
Mother passes through one end that pilot hole is connected to differential lever, and adjusting nut passes through arc adjustment hole and connect with differential lever, adjusting nut energy
Differential lever is locked on adjustable plate, the other end of differential lever and differential axis connection, differential shaft pass through differential crank and differential company
One end of piece connects, and the differential other end in flakes forms the output end of differential regulating mechanism.
In a kind of above-mentioned sewing machine, the work feed motor is stepper motor or grating electromechanical.
In a kind of above-mentioned sewing machine, the main shaft includes eccentric segment, and eccentric segment eccentric setting is in the central axis of main shaft
Line, eccentric segment are threaded through on the first sliding block, and eccentric segment can rotate in the first sliding block.
In a kind of above-mentioned sewing machine, the feed dog frame, differential retainer are provided with third close to one end of cloth pushing shaft
Sliding slot, first sliding groove are arranged in parallel with third sliding slot, and third sliding block is provided in third sliding slot, and third sliding block is connected to setting
In installation axle on casing.
In a kind of above-mentioned sewing machine, the installation axle is eccentric shaft, and the eccentric shaft includes being installed in casing
The eccentric part that mounting portion and the central axis for being eccentric in mounting portion are arranged, eccentric part are threaded through on third sliding block, the installation axle
Axis and the axis of main shaft be arranged in parallel.
The advantage that the present invention protrudes compared with prior art is:
Main shaft of the invention is driven by spindle motor and is rotated, and cloth feeding mechanism is rotated by work feed motor driven, can be by right
The control of work feed motor rotational angle and angular speed realizes different feeding tracks and then is suitable for various different sewing applications, adjusts
Section is convenient and precision is high.
Detailed description of the invention:
Fig. 1 is the schematic diagram of the movement relation between work feed motor of the invention, main shaft and feeding tooth；
Fig. 2 is one of stereoscopic schematic diagram of the invention；
Fig. 3 is the partial enlargement diagram of Fig. 2；
Fig. 4 is the two of stereoscopic schematic diagram of the invention；
Fig. 5 is the schematic diagram of installation axle of the invention；
Fig. 6 is the schematic diagram of differential retainer of the invention, feed dog frame；
Fig. 7 is the schematic diagram of differential adjustment of the invention；
Fig. 8 is that spindle motor control feeding track of the invention moves up and down, transports before and after work feed motor control feeding track
Dynamic simplified schematic diagram；
Fig. 9 is bigger, the cloth feed amount L bigger simplified schematic diagram of work feed motor rotational angle α of the invention；
Figure 10 is the feeding track schematic diagram for playing seam close joint and reinforcing of the invention；
Figure 11 is the feeding track schematic diagram for crossing thickness compensating of the invention；
Figure 12 is the feeding track schematic diagram of the of the invention thick material or thin material that voluntarily select；
Figure 13 is of the invention according to the optimal feeding track schematic diagram of cloth situation selection.
In figure: 1, spindle motor；2, main shaft；3, differential retainer；4, feed dog frame；5, differential tooth；6, feed dog；7, first
Sliding block；8, work feed motor；9, cloth pushing shaft；10, feeding crank；11, differential adjustment frame；12, feeding connecting rod；13, mounting portion；14,
Crank arm；15, second sliding slot；16, differential adjustment sliding block；17, the first crank；18, first connecting rod；19, the second crank；20, it adjusts
Save plate；21, differential lever；22, adjusting screw rod；23, spigot nut；24, adjusting nut；25, differential shaft；26, differential crank；27,
It is differential in flakes；28, eccentric segment；29, third sliding slot；30, third sliding block；31, mounting portion；32, eccentric part；33, first sliding groove.
Specific embodiment:
With specific embodiment, the invention will be further described below, referring to Fig. 1-13:
A kind of sewing machine, including feed device, the feed device includes spindle motor 1, main shaft 2, cloth feeding mechanism, differential
Retainer 3, feed dog frame 4 and differential regulating mechanism, main shaft 2 are driven by spindle motor 1 and are rotated, on differential retainer 3 and feed dog frame 4
Be respectively arranged with differential tooth 5 and feed dog 6, the main shaft 2 is eccentric shaft, main shaft 2 by the first sliding block 7 and differential retainer 3, give
First sliding groove 33 on cloth retainer 4 is slidably connected, and differential retainer 3 and feed dog frame 4 is driven to pump；The work feed
Mechanism is connect with differential retainer 3, feed dog frame 4, and cloth feeding mechanism is by 8 drive actions of work feed motor and then drives feed dog frame 4, poor
Dynamic 3 front-rear reciprocation movement of retainer, cloth feeding mechanism and work feed motor 8 form electronic type cloth feeding mechanism.The rotation of the work feed motor 8
Angle and angular speed are controlled by controller, are realized by the angle and angular speed that adjust 8 shaft of work feed motor to feeding track
It adjusts.
Further, further include differential regulating mechanism, the output end of the differential regulating mechanism act on cloth feeding mechanism with
The junction of differential retainer 3 changes cloth feeding mechanism by differential regulating mechanism and drives the amplitude progress of differential 3 swing of retainer poor
The adjusting of dynamic ratio, to be suitable for different fabrics.
Cloth feeding mechanism of the invention is driven by work feed motor 8 is independent, controls differential retainer 3, the reciprocal fortune in 4 front and back of feed dog frame
It is dynamic, it pumps in conjunction with the differential retainer 3 of the independent driving of spindle motor 1, feed dog frame 4, sending for different patterns may be implemented
Expect track, as shown in figures 10-13.By adjusting the size of 8 rotational angle α of work feed motor, different feeding tracks is formed, is used for
Process the cloth of different-thickness.Wherein, it is reinforced as shown in figure 9, being suitable for stitching close joint, when playing seam, work feed is reduced by controller
The size of the rotational angle α of the shaft of motor 8 carries out close joint reinforcing to reduce cloth feed amount L；As shown in Figure 10, it is suitable for blocked up
Compensation: by the thickness of fabric thickness sensing device induction cloth, and cloth thickness threshold value is set in controller, when practical cloth thickness is greater than
Cloth thickness threshold value increases α, to realize that increasing cloth feed amount L carried out thickness compensating；As shown in figure 11, cloth thickness is preset in controller
Threshold value, by fabric thickness sensing device induction cloth thickness, when cloth thickness be less than threshold value when, controller control spindle motor 1 with
Work feed motor 8 uses thin material Track fusion feeding tooth 6；When fabric thickness is greater than threshold value, controller controls spindle motor 1 and send
Cloth motor 8 is using thick material Track fusion feeding tooth 6；As shown in figure 12, can be thick according to practical cloth, it adjusts work feed motor 8 and rotates
The size of angle [alpha] realizes different feeding tracks.
Further, the cloth feeding mechanism includes the cloth pushing shaft 9 for being parallel to main shaft 2, the feeding being installed on cloth pushing shaft 9 song
Handle 10 and differential adjustment frame 11, feeding crank 10 are connect with one end of feeding connecting rod 12, and the other end of feeding connecting rod 12 passes through pin
Axis is rotatably connected on feed dog frame 4, and the axis of the pin shaft is perpendicular to feed dog frame 4, and pin shaft is connected to feed dog frame 4
On trailing flank.One end of differential adjustment frame 11 is mounting portion 13, the other end is crank arm 14, and mounting portion 13 is installed in cloth pushing shaft 9
On, crank arm 14 is slidably connected with differential retainer 3.Work feed motor 8 drives cloth pushing shaft 9 to rotate, and drives feeding crank 10 and differential
Adjustment frame 11 acts, and realizes the front-rear reciprocation movement of differential retainer 3 and feed dog frame 4.
Specifically, pin shaft of the present invention includes screw and the connecting rod set being set on screw, feeding connecting rod 12 it is another
One end is rotatably connected on connecting rod and puts on；Or the pin shaft is axial screw, the other end of feeding connecting rod 12 is rotatably connected on axle position
The optical axis portion of screw, axial screw are screwed on the trailing flank of feed dog frame 4.
Further, it is provided with second sliding slot 15 along the vertical direction on the leading flank of the differential retainer 3, the second sliding block is set
It sets in second sliding slot 15, the differential adjustment sliding block 16 with the second sliding block synchronization action is provided on front side of the second sliding block, it is poor
Dynamic adjustment sliding block 16 is set on crank arm 14, and when adjusting differential, the output end of differential regulating mechanism drives differential adjustment to slide
Block 16 is moved up or is moved down on crank arm 14, and differential adjustment sliding block 16 drives the second sliding block to move up and down in second sliding slot 15,
And then change the upper and lower position of differential adjustment frame 11 and differential 3 tie point of retainer.
Further, the cloth pushing shaft 9 is connect by link mechanism with work feed motor 8.The link mechanism includes one end
The first crank 17 being installed in 8 shaft of work feed motor, the other end of the first crank 17 are connect with first connecting rod 18, first connecting rod
18 other end is connect with one end of the second crank 19, and the other end of the second crank 19 is installed on cloth pushing shaft 9.In order to make to rotate
Flexibly, the both ends of the first connecting rod 18 are respectively arranged with bearing, and the first crank 17, the second crank 19 pass through with first connecting rod 18
Screw and nut connection, bearing are located between the hole at 18 both ends of first connecting rod and corresponding screw.In addition, the structure of link mechanism
Other structures can also be used, for example the mode etc. of multiple connecting rods is set between the first crank 17, the second crank 19.
From fig. 1, it can be seen that main shaft 2 is rotated at 0-180 °, right when the shaft of work feed motor 8 is rotated along the direction of arrow 1
The feed dog 6 answered carries out lift tooth feeding；When the shaft of work feed motor 8 along arrow 2 direction rotate when, main shaft 2 180 °-
360 ° of rotations, at this point, feed dog 6 is returned along arrow 2；When the shaft of work feed motor 8 is rotated along arrow 3, main shaft 2 is in 0-
180 ° of rotations, corresponding feed dog 6 carry out lift tooth feeding；When the shaft of work feed motor 8 is rotated along arrow 4, main shaft 2 exists
180 ° of -360 ° of rotations, at this point, feed dog 6 is returned along arrow 2.
Further, the differential regulating mechanism includes adjustable plate 20, differential lever 21, is arranged on adjustable plate 20 along vertical
Direction is provided with adjusting screw rod 22, and the pilot hole being arranged along the vertical direction and arc adjustment hole are additionally provided on adjustable plate 20,
Being provided on adjusting screw rod 22 can be along the spigot nut 23 that adjusting screw rod 22 moves, after differential lever 21 is located at adjustable plate 20
Side, spigot nut 23 pass through one end that pilot hole is connected to differential lever 21, and adjusting nut 24 passes through arc adjustment hole and differential lever
Differential lever 21 can be locked on adjustable plate 20 by 21 connections, adjusting nut 24, and the other end of differential lever 21 is connect with differential shaft 25,
Differential shaft 25 by differential crank 26 with it is differential in flakes 27 one end connect, it is differential in flakes 27 the other end form differential adjusting machine
The output end of structure.The output end is connect with differential adjustment sliding block 16.
In sewing machine operation process, differential lever 21 is locked on adjustable plate 20 by adjusting nut 24, when need
Adjust it is differential than when, unclamp adjusting nut 24, adjust differential lever 21, it is made to drive differential shaft 25, differential crank 26 are synchronous to turn
It is dynamic, it is moved up and down by the differential 27 differential adjustment sliding blocks 16 of driving in flakes, realizes the adjusting of differential ratio.
In order to facilitate the rotational angle of control work feed motor 8, the work feed motor 8 is stepper motor or grating electromechanical.This
The preferred stepper motor of embodiment has many advantages, such as that structure is simple, easy to adjust.
The present invention is as follows by the concrete principle that the rotation of main shaft 2 realizes that differential retainer 3, feed dog frame 4 pump:
The main shaft 2 described first includes eccentric segment 28, and for 28 eccentric setting of eccentric segment in the central axis of main shaft 2, eccentric segment 28 is threaded through the
On one sliding block 7, and eccentric segment 28 can rotate in the first sliding block 28.When main shaft 2 rotates, eccentric segment 28 turns in the first sliding block 28
It is dynamic, due to eccentric, it will drive the first sliding block 7 and slide and pump in first sliding groove 33, and then drive
Differential retainer 3, feed dog frame 4 pump.
In order to make differential retainer 3, feed dog frame 4 stable structure during the motion, the feed dog frame 4, differential retainer 3
One end close to cloth pushing shaft 9 is provided with third sliding slot 29, and first sliding groove 33 is arranged in parallel with third sliding slot 29, in third sliding slot 29
It is inside provided with third sliding block 30, third sliding block 30 is connected in the installation axle being arranged on casing.Third sliding block 30 can be in third
Movement in sliding slot 29.Wherein, it is provided with two limited blocks on the mounting shaft, two limited blocks are located at the two of third sliding block 30
The limit to third sliding block 30 is realized in side.
Further, the installation axle be eccentric shaft, the eccentric shaft include the mounting portion 31 being installed in casing and partially
The eccentric part 32 that the heart is arranged in the central axis of mounting portion 31, eccentric part 32 are threaded through on third sliding block 30, the installation axle
The axis of axis and main shaft 2 is arranged in parallel.The structure of eccentric shaft can be used for adjusting the height of differential retainer 3, feed dog frame 4
(i.e. upper and lower position).For the convenience of adjusting, the present invention is provided with " one " word or " ten " word in the outer end of the mounting portion 31 of eccentric shaft
Slot is just able to achieve adjusting by screwdriver.
Above-described embodiment is only one of presently preferred embodiments of the present invention, and but not intended to limit the scope of the present invention, therefore:
The equivalence changes that all shape, structures under this invention, principle are done, should all be covered by within protection scope of the present invention.
Claims (10)
1. a kind of sewing machine, including feed device, the feed device includes spindle motor (1), main shaft (2), cloth feeding mechanism, difference
Dynamic retainer (3), feed dog frame (4), main shaft are driven by spindle motor (1) and are rotated, and are divided on differential retainer (3) and feed dog frame (4)
It is not provided with differential tooth (5) and feed dog (6), it is characterised in that: the main shaft (2) is eccentric shaft, and main shaft (2) is sliding by first
Block (7) is slidably connected with the first sliding groove (33) on differential retainer (3), feed dog frame (4), and drives differential retainer (3) and send
Cloth retainer (4) pumps；The cloth feeding mechanism is connect with differential retainer (3), feed dog frame (4), and cloth feeding mechanism is by sending
Cloth motor (8) drive actions drive feed dog frame (4), differential retainer (3) front-rear reciprocation movement in turn；The work feed motor (8)
Rotational angle and angular speed controlled by controller.
2. a kind of sewing machine according to claim 1, it is characterised in that: it further include differential regulating mechanism, the differential tune
The output end of section mechanism acts on the junction of cloth feeding mechanism Yu differential retainer (3), changes cloth feeding mechanism by differential regulating mechanism
It drives the amplitude of differential retainer (3) swing and then adjusts differential ratio.
3. a kind of sewing machine according to claim 1 or 2, it is characterised in that: the cloth feeding mechanism includes being parallel to main shaft
(2) cloth pushing shaft (9), the feeding crank (10) and differential adjustment frame (11) being installed on cloth pushing shaft (9), feeding crank (10) with
One end of feeding connecting rod (12) connects, and the other end of feeding connecting rod (12) is rotatably connected on feed dog frame (4) by pin shaft, poor
The one end of dynamic adjustment frame (11) is mounting portion (13), the other end is crank arm (14), and mounting portion (13) is installed in cloth pushing shaft (9)
On, crank arm (14) is slidably connected with differential retainer (3).
4. a kind of sewing machine according to claim 3, it is characterised in that: along perpendicular on the leading flank of the differential retainer (3)
To being provided with second sliding slot (15), the setting of the second sliding block is provided on front side of the second sliding block histogram in second sliding slot (15)
With the differential adjustment sliding block (16) of the second sliding block synchronization action, differential adjustment sliding block (16) is set on crank arm (14), is adjusted
When needle gage, it is poor that the output end of needle gage regulating mechanism drives differential adjustment sliding block (16) to move up or move down change on crank arm (14)
The upper and lower position of dynamic adjustment frame (11) and differential retainer (3) tie point.
5. a kind of sewing machine according to claim 3, it is characterised in that: the cloth pushing shaft (9) passes through link mechanism and send
Cloth motor (8) connection；The link mechanism includes the first crank (17) that one end is installed in work feed motor (8) shaft, and first
The other end of crank (17) is connect with first connecting rod (18), and the other end of first connecting rod (18) and one end of the second crank (19) connect
It connects, the other end of the second crank (19) is installed on cloth pushing shaft (9).
6. a kind of sewing machine according to claim 2, it is characterised in that: the differential regulating mechanism includes adjustable plate
(20), differential lever (21) are arranged on adjustable plate (20) and are provided with adjusting screw rod (22) along the vertical direction, on adjustable plate (20)
It is additionally provided with the pilot hole being arranged along the vertical direction and arc adjustment hole, being provided on adjusting screw rod (22) can be along adjusting screw rod
(22) mobile spigot nut (23), differential lever (21) are located at the rear side of adjustable plate (20), and spigot nut (23) passes through pilot hole
It is connected to one end of differential lever (21), adjusting nut (24) passes through arc adjustment hole and connect with differential lever (21), adjusting nut
(24) differential lever (21) can be locked on adjustable plate (20), the other end of differential lever (21) is connect with differential shaft (25), differential
Axis (25) is connect by differential crank (26) with the one end of differential (27) in flakes, and the other end of differential (27) in flakes forms needle gage tune
Save the output end of mechanism.
7. a kind of sewing machine according to claim 1 or 2, it is characterised in that: the work feed motor (8) be stepper motor or
Grating electromechanical.
8. a kind of sewing machine according to claim 1 or 2, it is characterised in that: the main shaft (2) includes eccentric segment (28),
Eccentric segment (28) eccentric setting is in the central axis of main shaft (2), and eccentric segment (28) is threaded through on the first sliding block (7), and eccentric segment
It (28) can the rotation in the first sliding block (7).
9. a kind of sewing machine according to claim 1 or 2, it is characterised in that: the feed dog frame (4), differential retainer (3)
It is provided with third sliding slot (29) close to the one end of cloth pushing shaft (9), first sliding groove (33) is arranged in parallel with third sliding slot (29), the
It is provided with third sliding block (30) in three sliding slots (29), third sliding block (30) is connected in the installation axle being arranged on casing.
10. a kind of sewing machine according to claim 9, it is characterised in that: the installation axle is eccentric shaft, the eccentric shaft
It is eccentric including the eccentric part (32) that the mounting portion (31) being installed in casing and the central axis for being eccentric in mounting portion (31) are arranged
Portion (32) is threaded through on third sliding block (30), and the axis of the axis and main shaft (2) of the installation axle is arranged in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811543113.0A CN109487446A (en) | 2018-12-17 | 2018-12-17 | A kind of sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811543113.0A CN109487446A (en) | 2018-12-17 | 2018-12-17 | A kind of sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109487446A true CN109487446A (en) | 2019-03-19 |
Family
ID=65710557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811543113.0A Pending CN109487446A (en) | 2018-12-17 | 2018-12-17 | A kind of sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109487446A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109930305A (en) * | 2019-04-08 | 2019-06-25 | 杰克缝纫机股份有限公司 | A kind of encryption seam adjustment structure of sewing machine |
| CN110485065A (en) * | 2019-09-10 | 2019-11-22 | 杰克缝纫机股份有限公司 | A kind of needle gage adjustment structure of sewing machine |
| CN111270432A (en) * | 2020-03-19 | 2020-06-12 | 琦星智能科技股份有限公司 | Sewing machine and method for high-speed and low-speed stitch length compensation of main shaft |
| CN111748919A (en) * | 2019-03-29 | 2020-10-09 | 杰克缝纫机股份有限公司 | Tooth rack height adjusting mechanism of lockstitch sewing machine |
| CN113026223A (en) * | 2019-12-25 | 2021-06-25 | 杰克缝纫机股份有限公司 | Feeding mechanism of sewing machine and sewing machine with feeding mechanism |
| CN114635233A (en) * | 2020-12-15 | 2022-06-17 | 杰克科技股份有限公司 | Joint debugging mechanism, sewing machine and joint debugging method of sewing machine |
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| CN106012337A (en) * | 2016-08-03 | 2016-10-12 | 杰克缝纫机股份有限公司 | Stitch length and differential regulating mechanism and sewing machine |
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| CN111748919A (en) * | 2019-03-29 | 2020-10-09 | 杰克缝纫机股份有限公司 | Tooth rack height adjusting mechanism of lockstitch sewing machine |
| CN111748919B (en) * | 2019-03-29 | 2022-06-21 | 杰克科技股份有限公司 | Tooth rack height adjusting mechanism of lockstitch sewing machine |
| CN109930305A (en) * | 2019-04-08 | 2019-06-25 | 杰克缝纫机股份有限公司 | A kind of encryption seam adjustment structure of sewing machine |
| CN110485065A (en) * | 2019-09-10 | 2019-11-22 | 杰克缝纫机股份有限公司 | A kind of needle gage adjustment structure of sewing machine |
| CN113026223A (en) * | 2019-12-25 | 2021-06-25 | 杰克缝纫机股份有限公司 | Feeding mechanism of sewing machine and sewing machine with feeding mechanism |
| CN111270432A (en) * | 2020-03-19 | 2020-06-12 | 琦星智能科技股份有限公司 | Sewing machine and method for high-speed and low-speed stitch length compensation of main shaft |
| CN114635233A (en) * | 2020-12-15 | 2022-06-17 | 杰克科技股份有限公司 | Joint debugging mechanism, sewing machine and joint debugging method of sewing machine |
| CN114635233B (en) * | 2020-12-15 | 2023-07-07 | 杰克科技股份有限公司 | Joint debugging mechanism, sewing machine and sewing machine joint debugging method |
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Application publication date: 20190319 |