CN108796841A - A kind of sewing machine - Google Patents
A kind of sewing machine Download PDFInfo
- Publication number
- CN108796841A CN108796841A CN201810699811.3A CN201810699811A CN108796841A CN 108796841 A CN108796841 A CN 108796841A CN 201810699811 A CN201810699811 A CN 201810699811A CN 108796841 A CN108796841 A CN 108796841A
- Authority
- CN
- China
- Prior art keywords
- connecting rod
- crank
- backstitching
- rod
- swing seat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B27/00—Work-feeding means
- D05B27/22—Work-feeding means with means for setting length of stitch
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B27/00—Work-feeding means
Abstract
The invention belongs to sewing device technical fields, refer in particular to a kind of sewing machine;Including needle gage regulation stud, regulator shaft and the needle gage adjuster being fixed on regulator shaft, the swing seat being arranged on bottom plate is swung by the first positioning pin and the second positioning pin, the upper end for the connecting rod of falling feeding is connected on needle gage adjuster, the lower end for the connecting rod of falling feeding is connected in swing seat, it is also connect with the lower end for backstitching pull rod in swing seat, it is described to backstitch pull rod and the connecting rod of falling feeding is both connected to the same end of swing seat, the upper end for backstitching pull rod is hinged by backstitching crank and backstitching the iron core of electromagnet, it is described backstitch crank and be installed in backstitch on wrench shaft, wrench shaft is backstitched by backstitching solenoid actuated rotation, the middle part of the connecting rod of falling feeding is connect by reset tension spring with bottom plate;This invention simplifies the transmission chains for just backstitching mechanism, simplify complicated Element Design, reduce the processing cost of part.
Description
Technical field:
The invention belongs to sewing device technical fields, refer in particular to a kind of sewing machine.
Background technology:
Flat seam machine in the starting and ending stage of suture, sewing is reinforced commonly using backstitching in sewing, for stitching U.S.
It sees, it is desirable that just backstitching needle gage unanimously so that suture can be overlapped perfectly.
It is as follows that existing sewing needle distance is just backstitching switching construction:Including needle gage regulation stud, regulator shaft and it is fixed on
Needle gage adjuster on regulator shaft, the needle gage adjuster includes main body, one end of main body is provided with V-groove, in master
The other end of body is provided with the crank portion being connect with the upper end for the connecting rod of falling feeding, under the main body between V-groove and crank portion
End is provided with fork, and fork is provided with sliding slot, backstitches to be provided on wrench shaft and backstitches crank, backstitches to be provided on crank and backstitches
Crank-pin backstitches crank-pin and is arranged in the sliding slot of needle gage adjuster, is additionally provided on backstitching crank and is drawn for hanging to reset
The tension spring interconnecting piece of spring, one end of reset tension spring is hung on tension spring interconnecting piece, the other end is installed on bottom plate.The connecting rod of falling feeding
Lower end connect with swing seat, swing seat is rotatably connected on by left and right pins on bottom plate, and swing seat and long and short oscillating deck, is sent
The driving force of upper axis is transferred to feed spool by material connecting rod together.
From the above it can be seen that needle gage adjuster in existing structure and crank structure complexity is backstitched, high processing costs, and whole knot
Structure transmission chain redundancy, it is complicated.
Invention content:
The object of the present invention is to provide the sewing machines that a kind of simplified design of part, simplified needle gage are just backstitching switching construction.
The invention is realized in this way:
A kind of sewing machine, including it is needle gage regulation stud, regulator shaft and the needle gage adjuster being fixed on regulator shaft, logical
It crosses the first positioning pin and the second positioning pin swings the swing seat being arranged on bottom plate, the upper end for the connecting rod of falling feeding is connected to needle gage tune
It saves on device, the lower end for the connecting rod of falling feeding is connected in swing seat, is also connect with the lower end for backstitching pull rod in swing seat, described to backstitch
Pull rod and the connecting rod of falling feeding are both connected to the same end of swing seat, backstitch the upper end of pull rod by backstitching crank and backstitching electromagnet
Iron core it is hinged, it is described backstitch crank and be installed in backstitch on wrench shaft, backstitch wrench shaft by backstitching solenoid actuated rotation, it is described
The middle part for the connecting rod of falling feeding is connect by reset tension spring with bottom plate.
In a kind of above-mentioned sewing machine, the crank that backstitches is in fork configuration, including long arm and galianconism portion, long arm
One end and backstitch pull rod upper end is hinged, the other end is installed in and backstitches on wrench shaft, be arranged in the galianconism portion for backstitching crank
There are crank-pin, galianconism portion to be connect with the iron core for backstitching electromagnet by crank-pin.
In a kind of above-mentioned sewing machine, the long arm is an integral structure with galianconism portion.
In a kind of above-mentioned sewing machine, the iron core for backstitching electromagnet is connected by backstitching electromagnet connecting rod with crank-pin
It connects.
In a kind of above-mentioned sewing machine, crank-pin mounting hole, one end and the song of crank-pin are provided in the galianconism portion
Handle pin mounting hole is interference fitted.
In a kind of above-mentioned sewing machine, one end of the needle gage adjuster is provided with mounting hole, the connecting rod of falling feeding it is upper
End is provided with through-hole, and the upper end for the connecting rod of falling feeding is connect across mounting hole with through-hole with needle gage adjuster by cam pin, and institute
Cam pin is stated by being fixed on needle gage adjuster along the screw that mounting hole is radially arranged.
In a kind of above-mentioned sewing machine, the swing seat takes the shape of the letter U, on the inner wall of two support arm outer ends of swing seat respectively
It is connect with the outer end of short oscillating deck, the inner end of two long oscillating decks is arranged between the inner end of two short oscillating decks, work feed connecting rod
Lower end is arranged between the inner end of two long oscillating decks, and the lower end of work feed connecting rod, the inner end of two short oscillating decks, two long oscillating decks
Inner end is installed in same installation axle, and the upper end of work feed connecting rod and upper axis connection, the outer end of two long oscillating decks passes through feed spool
The driving force of upper axis, is transferred to and is sent by feeding connecting rod, swing seat, long oscillating deck, short oscillating deck by crank and feeding axis connection
Expect axis.
In a kind of above-mentioned sewing machine, the pull rod that backstitches is arranged in parallel with the connecting rod of falling feeding, and backstitches pull rod and fall
The lower end of feeding connecting rod is respectively hinged on two outer walls of the blind end of swing seat.
In a kind of above-mentioned sewing machine, the connecting rod of falling feeding includes upper body of rod, lower body of rod, upper body of rod and lower body of rod it
Between connected by round part, upper body of rod, round part and lower body of rod are an integral structure, and round part is provided with tension spring hole, reset
One end of tension spring is hung on tension spring hole.
The advantage that the present invention protrudes compared with prior art is:
This invention simplifies the transmission chains for just backstitching mechanism, simplify complicated Element Design, reduce the processing of part
Cost.
Description of the drawings:
Fig. 1 is the schematic diagram of background technology;
Fig. 2 is the schematic diagram for backstitching crank of background technology;
Fig. 3 is the schematic diagram of the needle gage adjuster of background technology;
Fig. 4 is the mechanism principle figure of background technology;
Fig. 5 is the stereoscopic schematic diagram of the present invention;
Fig. 6 is the front view of the present invention;
Fig. 7 is the stereogram of the parts thereof assembling of the present invention;
Fig. 8 is the schematic diagram that the present invention is in positive gap-like state;
Fig. 9 is schematic diagram of the present invention in the state that backstitches;
Figure 10 is the schematic diagram of the needle gage adjuster of the present invention;
Figure 11 is the schematic diagram of the connecting rod of falling feeding of the present invention;
Figure 12 is the schematic diagram of the swing seat of the present invention;
Figure 13 is the schematic diagram for backstitching crank of the present invention;
Figure 14 is the mechanism principle figure of the present invention;
Figure 15 is the schematic diagram of the cam pin of the present invention.
In Fig. 1-4:1, needle gage regulation stud;2, regulator shaft;3, needle gage adjuster;4, main body;5, V-groove;6, it send
Expect connecting rod;7, crank portion;8, fork;9, sliding slot;10, wrench shaft is backstitched;11, spanner crank is backstitched;12, crank-pin is backstitched;13,
Tension spring interconnecting piece;14, reset tension spring;15, bottom plate;16, swing seat;17, the connecting rod of falling feeding;18, upper axis;19, feed spool;20,
Backstitch electromagnet.
In Fig. 5-14:21, needle gage regulation stud;22, regulator shaft;23, needle gage adjuster;24, the first positioning pin;25,
Second positioning pin;26, swing seat;27, the connecting rod of falling feeding;28, pull rod is backstitched;29, crank is backstitched;30, electromagnet is backstitched;31,
Backstitch wrench shaft;32, reset tension spring;33, long arm;34, galianconism portion;35, crank-pin;36, electromagnet connecting rod is backstitched;37, pacify
Fill hole;38, cam pin;39, eccentric pin head part;40, the first axis pin;41, the second axis pin;42, support arm;43, short oscillating deck;44,
Long oscillating deck;45, work feed connecting rod;46, upper axis;47, feed spool crank;48, feed spool;49, upper body of rod;50, lower body of rod;51,
Round part;52, tension spring hole.
Specific implementation mode:
With specific embodiment, the invention will be further described below, referring to Fig. 5-15:
A kind of sewing machine, including needle gage regulation stud 21, regulator shaft 22 and the needle gage tune being fixed on regulator shaft 22
Section device 23 swings the swing seat 26 being arranged on bottom plate (not shown) by the first positioning pin 24 and the second positioning pin 25.It adjusts
It saves stud 21 to be mounted in casing (not shown) by screw thread rotation, for limiting to needle gage adjuster 23.Regulator shaft 22
It is rotatably arranged in casing, needle gage adjuster 23 is fixedly connected with regulator shaft 22, and can be synchronized and be turned with regulator shaft 22
It is dynamic.The upper end of the connecting rod of falling feeding 27 is connected on needle gage adjuster 23, and the lower end of the connecting rod of falling feeding 27 is connected in swing seat 26,
It is also connect with the lower end for backstitching pull rod 28 in swing seat 26, it is described to backstitch pull rod 28 and the connecting rod of falling feeding 27 is both connected to swing seat
26 the same end, the upper end for backstitching pull rod 28 is hinged by backstitching crank 29 and backstitching the iron core of electromagnet 30, described to backstitch song
Handle 29, which is installed in, to be backstitched on wrench shaft 31, is backstitched wrench shaft 31 by backstitching the driving rotation of electromagnet 30, is backstitched the rotation of wrench shaft 31
It is arranged in casing, backstitches electromagnet 30 and be fixedly mounted in casing.The middle part of the connecting rod of falling feeding 27 passes through reset tension spring
32 connect with bottom plate.In actual use, reset tension spring 32 is connected to the specific location on bottom plate depending on space.
As shown in Fig. 7-9 and Figure 13, the crank 29 that backstitches is in fork configuration, including long arm 33 and galianconism portion 34, length
One end of arm 33 and the upper end for backstitching pull rod 28 are hinged, the other end is installed in and backstitches on wrench shaft 31, are backstitching crank 29
Crank-pin 35 is provided in galianconism portion 34, galianconism portion 34 is connect by crank-pin 35 with the iron core for backstitching electromagnet 30.The present invention
The structure for backstitching crank 29 is equally also simplified, it is easy for installation, difficulty of processing is reduced, processing cost is reduced.
Further, the long arm 33 is an integral structure with galianconism portion 34, easy to process.
Further, the iron core for backstitching electromagnet 30 is connect by backstitching electromagnet connecting rod 36 with crank-pin 35.Tool
Body be backstitch electromagnet connecting rod 36 both ends be separately provided for and backstitch electromagnet 30 iron core connection connecting hole and with
The connecting hole that crank-pin 35 connects.When installation, crank-pin 35 is plugged in corresponding connecting hole.Due to backstitching electromagnet 30
It is fixed with the position of crank 29 is backstitched, therefore crank-pin 35 is not necessarily to carry out axial limiting in corresponding connecting hole.
Further, be provided with crank-pin mounting hole in galianconism portion 34 of the present invention, one end of crank-pin 35 with
Crank-pin mounting hole is interference fitted.Certainly, crank-pin 35 can also be connected through a screw thread, weld, the fixed forms such as glue carry out generation
For the plug connection of interference fit.
When iron core is protruding, electromagnet connecting rod 36 is backstitched by crank-pin 35 to backstitching 29 applied force of crank, in turn
Drive backstitches the rotation of wrench shaft 31, realizes the lifting to the connecting rod of falling feeding 27.
The present invention's backstitches electromagnet 30 and can also be replaced with cylinder, electric pushrod etc..
As shown in Figure 5-10, one end of needle gage adjuster 23 of the present invention is provided with mounting hole 37, the connecting rod of falling feeding 27
Upper end be provided with through-hole, the upper end of the connecting rod of falling feeding 27 passes through mounting hole 37 and through-hole and needle gage adjuster by cam pin 38
23 connections, and the cam pin 38 along the screw that mounting hole 37 is radially arranged by being fixed on needle gage adjuster 23.The present invention
Needle gage adjuster 23 structure compared with existing needle gage adjuster 23, simplify structure, reduce difficulty of processing, reduce
Processing cost.
As shown in figure 15, cam pin 38 of the present invention includes eccentric pin head part 39, in the end face of eccentric pin head part 39
On be centrally located the first axis pin 40, eccentric setting has the second axis pin 41 on the outer end face of the first axis pin 40, it is described fall feeding
The upper end of connecting rod 27 is arranged on the first axis pin 40, and the second axis pin 41 is plugged in the mounting hole 37 of needle gage adjuster 23, and second
Axis pin 41 is fixedly connected by screw with needle gage adjuster 23.The eccentricity of the axis of first axis pin 40 and the second axis pin 41 according to
Actual conditions are designed, and the eccentricity of the present embodiment is 0.7 ± 0.015mm.
As shown in Fig. 5,7,12, the swing seat 26 takes the shape of the letter U, on the inner wall of two support arms, 42 outer end of swing seat 26 respectively
It is connect with the outer end of short oscillating deck 43, the inner end of two long oscillating decks 44 is arranged between the inner end of two short oscillating decks 43, work feed
The lower end of connecting rod 45 is arranged between the inner end of two long oscillating decks 44, and the lower end of work feed connecting rod 45, two short oscillating decks 43 it is interior
End, two long oscillating decks 44 inner end be installed in same installation axle, the upper end of work feed connecting rod 45 connect with upper axis 46, two grow put
The outer end of movable plate 44 is connect by feed spool crank 47 with feed spool 48, and feeding connecting rod 45, swing seat 26, long oscillating deck are passed through
44, the driving force of upper axis 46 is transferred to feed spool 48 by short oscillating deck 43.
As shown in figure 5 and figure 7, in order to make 26 uniform force of swing seat, the lower end of pull rod 28 and the connecting rod of falling feeding 27 is backstitched
It is respectively articulated with again on two outer walls of the blind end of swing seat 26.
Specifically, as shown in figure 11, the connecting rod of falling feeding 27 includes upper body of rod 49, lower body of rod 50, and upper body of rod 49 is under
It is connected by round part 51 between the body of rod 50, upper body of rod 49, round part 51 and lower body of rod 50 are an integral structure, in round part 51
It is provided with tension spring hole 52, one end of reset tension spring 32 is hung on tension spring hole 52.The shape of the connecting rod of falling feeding 27 of the present invention can
When hanging spring at tension spring hole 52, reset tension spring 32 is not interfered with the connecting rod of falling feeding 27.
The present invention operation principle be:
1, when positive seam, backstitch electromagnet 30 and be in off-position, reset tension spring 32 to the application of the connecting rod of falling feeding 27 one to
Under pulling force, the connecting rod of falling feeding 27 drives needle gage adjuster 23 to turn to the V-groove on needle gage adjuster 23 around regulator shaft 22
Lower surface abuts limit with needle gage regulation stud 21, and the left and right position of needle gage regulation stud 21 is current needle gage size.Needle
Principle away from adjusting is identical as existing flush joint needle pitch regulating mechanism, and the present invention is not described in detail.
When 2, automatically switching to backstitch:The energization of electromagnet 30 is backstitched, the iron core for backstitching electromagnet 30 pushes backstitch electromagnetism to the left
Iron connecting rod 36, while backstitching electromagnet connecting rod 36 and act on and backstitching on crank 29 so that crank 29 is backstitched to backstitch wrench shaft 31
For axis rotation.When backstitching the rotation of crank 29, the drive of long arm 33 backstitches pull rod 28 and moves upwards, and backstitches pull rod 28 and pulls swing
Seat 26 is rotated around the first positioning pin 24, the second positioning pin 25, and lower end is being put with the 26 hinged connecting rod of falling feeding 27 of swing seat at this time
Under the drive of dynamic seat 26, driving needle gage adjuster 23 is rotated around regulator shaft 22, until the V-groove upper table on needle gage adjuster 23
Face is abutted with needle gage regulation stud 21.Above-mentioned complete process realize just stitch a certain needle gage to backstitch respective needle away from automatic cut
It changes.
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 (9)
1. a kind of sewing machine, including needle gage regulation stud (21), regulator shaft (22) and the needle being fixed on regulator shaft (22)
The swing seat (26) being arranged on bottom plate is swung away from adjuster (23), by the first positioning pin (24) and the second positioning pin (25),
It is characterized in that:The upper end of the connecting rod of falling feeding (27) is connected on needle gage adjuster (23), and the lower end of the connecting rod of falling feeding (27) connects
It is connected in swing seat (26), is also connect with the lower end for backstitching pull rod (28) in swing seat (26), it is described to backstitch pull rod (28) and fall
Feeding connecting rod (27) is both connected to the same end of swing seat (26), backstitches the upper end of pull rod (28) by backstitching crank (29) and falling
The iron core for stitching electromagnet (30) is hinged, it is described backstitch crank (29) and be installed in backstitch on wrench shaft (31), backstitch wrench shaft (31)
By backstitching electromagnet (30) driving rotation, the middle part of the connecting rod of falling feeding (27) is connect by reset tension spring (32) with bottom plate.
2. a kind of sewing machine according to claim 1, it is characterised in that:The crank (29) that backstitches is in fork configuration, packet
Include long arm (33) and galianconism portion (34), one end of long arm (33) and the upper end for backstitching pull rod (28) are hinged, the other end is fixed
On backstitching wrench shaft (31), crank-pin (35) is provided in the galianconism portion (34) for backstitching crank (29), galianconism portion (34) are logical
It crosses crank-pin (35) and is connect with the iron core for backstitching electromagnet (30).
3. a kind of sewing machine according to claim 1 or 2, it is characterised in that:The long arm (33) and galianconism portion (34)
It is an integral structure.
4. a kind of sewing machine according to claim 1 or 2, it is characterised in that:The iron core for backstitching electromagnet (30) is logical
It crosses and backstitches electromagnet (30) connecting rod and connect with crank-pin (35).
5. a kind of sewing machine according to claim 2, it is characterised in that:It is provided with crank-pin on the galianconism portion (34)
(35) mounting hole, one end and the crank-pin mounting hole of crank-pin (35) are interference fitted.
6. a kind of sewing machine according to claim 1, it is characterised in that:One end of the needle gage adjuster (23) is provided with
The upper end of mounting hole (37), the connecting rod of falling feeding (27) is provided with through-hole, and the upper end of the connecting rod of falling feeding (27) passes through cam pin (38)
It is connect with through-hole with needle gage adjuster (23) across mounting hole (37), and the cam pin (38) passes through along mounting hole (37) radial direction
The screw of setting is fixed on needle gage adjuster (23).
7. a kind of sewing machine according to claim 1, it is characterised in that:The swing seat (26) takes the shape of the letter U, in swing seat
(26) connect respectively with the outer end of short oscillating deck (43) on the inner wall of two support arms (42) outer end, two long oscillating deck (44) it is interior
End is arranged between the inner end of two short oscillating decks (43), and the lower end of work feed connecting rod (45) is arranged in the inner end of two long oscillating decks (44)
Between, and the lower end of work feed connecting rod (45), the inner end of two short oscillating decks (43), two long oscillating decks (44) inner end be installed in together
In one installation axle, the upper end of work feed connecting rod (45) is connect with upper axis (46), and the outer end of two long oscillating decks (44) passes through feed spool song
Handle (47) is connect with feed spool (48), passes through feeding connecting rod (45), swing seat (26), long oscillating deck (44), short oscillating deck (43)
The driving force of upper axis (46) is transferred to feed spool (48).
8. a kind of sewing machine according to claim 1, it is characterised in that:It is described to backstitch pull rod (28) and the connecting rod of falling feeding
(27) lower end is respectively hinged on two outer walls of the blind end of swing seat (26).
9. a kind of sewing machine according to claim 8, it is characterised in that:The connecting rod of falling feeding (27) includes upper body of rod
(49), lower body of rod (50) are connect between upper body of rod (49) and lower body of rod (50) by round part (51), and upper body of rod (49) is turned round
Portion (51) and lower body of rod (50) are an integral structure, and round part (51) is provided with tension spring hole (52), and the one of reset tension spring (32)
End is hung on tension spring hole (52).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201810699811.3A CN108796841B (en) | 2018-06-29 | 2018-06-29 | Sewing machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201810699811.3A CN108796841B (en) | 2018-06-29 | 2018-06-29 | Sewing machine |
Publications (2)
Publication Number | Publication Date |
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CN108796841A true CN108796841A (en) | 2018-11-13 |
CN108796841B CN108796841B (en) | 2021-01-05 |
Family
ID=64073868
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN201810699811.3A Active CN108796841B (en) | 2018-06-29 | 2018-06-29 | Sewing machine |
Country Status (1)
Country | Link |
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CN (1) | CN108796841B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109629124A (en) * | 2019-01-02 | 2019-04-16 | 浙江众邦机电科技有限公司 | Sewing machine and sewing needle distance regulation limiting device |
Citations (6)
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JPH06292778A (en) * | 1993-04-08 | 1994-10-21 | Brother Ind Ltd | Sewing machine |
JPH0871286A (en) * | 1994-09-08 | 1996-03-19 | Brother Ind Ltd | Silencing structure for sewing machine |
CN2918483Y (en) * | 2006-06-02 | 2007-07-04 | 日星缝纫机(上海)有限公司 | Needle distance stop dog |
CN104233644A (en) * | 2014-09-02 | 2014-12-24 | 蔡金财 | Sewing machine for up-down differential feeding |
CN204959267U (en) * | 2015-09-16 | 2016-01-13 | 台州市三本缝制设备有限公司 | Automatic backstitch device that sewing machine zero clearance gauge needle adjusted and gauge needle adjusting screw thereof |
CN206580985U (en) * | 2017-03-25 | 2017-10-24 | 杰克缝纫机股份有限公司 | A kind of sewing machine |
-
2018
- 2018-06-29 CN CN201810699811.3A patent/CN108796841B/en active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06292778A (en) * | 1993-04-08 | 1994-10-21 | Brother Ind Ltd | Sewing machine |
JPH0871286A (en) * | 1994-09-08 | 1996-03-19 | Brother Ind Ltd | Silencing structure for sewing machine |
CN2918483Y (en) * | 2006-06-02 | 2007-07-04 | 日星缝纫机(上海)有限公司 | Needle distance stop dog |
CN104233644A (en) * | 2014-09-02 | 2014-12-24 | 蔡金财 | Sewing machine for up-down differential feeding |
CN204959267U (en) * | 2015-09-16 | 2016-01-13 | 台州市三本缝制设备有限公司 | Automatic backstitch device that sewing machine zero clearance gauge needle adjusted and gauge needle adjusting screw thereof |
CN206580985U (en) * | 2017-03-25 | 2017-10-24 | 杰克缝纫机股份有限公司 | A kind of sewing machine |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109629124A (en) * | 2019-01-02 | 2019-04-16 | 浙江众邦机电科技有限公司 | Sewing machine and sewing needle distance regulation limiting device |
CN109629124B (en) * | 2019-01-02 | 2021-02-09 | 浙江众邦机电科技有限公司 | Sewing machine and sewing machine needle distance adjusting and limiting device |
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CN108796841B (en) | 2021-01-05 |
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