CN106637733A - Sewing machine - Google Patents

Sewing machine Download PDF

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Publication number
CN106637733A
CN106637733A CN201611210590.6A CN201611210590A CN106637733A CN 106637733 A CN106637733 A CN 106637733A CN 201611210590 A CN201611210590 A CN 201611210590A CN 106637733 A CN106637733 A CN 106637733A
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CN
China
Prior art keywords
rod
driver
sewing machine
movable
sewing
Prior art date
Application number
CN201611210590.6A
Other languages
Chinese (zh)
Other versions
CN106637733B (en
Inventor
丁建明
潘建国
万义明
吴善敏
Original Assignee
杰克缝纫机股份有限公司
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Priority to CN201611210590.6A priority Critical patent/CN106637733B/en
Publication of CN106637733A publication Critical patent/CN106637733A/en
Application granted granted Critical
Publication of CN106637733B publication Critical patent/CN106637733B/en
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Classifications

    • DTEXTILES; PAPER
    • D05SEWING; EMBROIDERING; TUFTING
    • D05BSEWING
    • D05B65/00Devices for severing the needle or lower thread
    • D05B65/02Devices for severing the needle or lower thread controlled by the sewing mechanisms
    • DTEXTILES; PAPER
    • D05SEWING; EMBROIDERING; TUFTING
    • D05BSEWING
    • D05B69/00Driving-gear; Control devices
    • D05B69/02Mechanical drives
    • DTEXTILES; PAPER
    • D05SEWING; EMBROIDERING; TUFTING
    • D05BSEWING
    • D05B69/00Driving-gear; Control devices
    • D05B69/10Electrical or electromagnetic drives

Abstract

The invention belongs to the technical field of sewing equipment and relates to a sewing machine. The sewing machine comprises a first driver and a first connection rod, the first connection rod is rotationally connected to a machine shell bottom plate, one end of the first connection rod is connected with a movable part of the first driver, the other end of the first connection rod is connected with a movable part of a second driver, the movable part of the second driver is also connected with a second connection rod, the second connection rod is driven by the first driver to rotate so that the other end of the first driver can drive the second connection rod to move to adjust to a corresponding stitch length for dense sewing, and the action of the first driver is controlled by a controller. The sewing machine can solve the problems that in the prior art, after thread cutting, thread ends are not attractive due to different lengths, and the thread ends are too long after thread cutting, and the stitch length during sewing can be adjusted through a mechanical structure. Before thread cutting, a small segment of dense sewing or variable-stitch-length sewing is conducted, so that the thread ends become short after thread cutting, the left thread ends are firmly connected and not likely to fall off after being torn, the sewing effect is improved, and attractiveness is improved.

Description

A kind of sewing machine
Technical field
The invention belongs to sewing device technical field, is related to a kind of sewing machine.
Background technology
Sewing machine for covering chain stitch is mainly with a sewing thread, and a kind of stitching is formed on sewing, hands over one or more layers sewing The machine knitted or unite by a seam.Two kinds of purposes of thin material and thick material are generally divided into, sewing machine for covering chain stitch can sew cotton, fiber crops, silk, hair, people The product such as the fabrics such as fiber and leather, plastics, paper is made, thin material is generally used for knitting, underwear, shirt, uniform etc., and thickness material is general For all kinds of gym suits, jean, fashionable dress, overcoat, shoes and hats, skin is young, case and bag etc., and flat seam machine is most basic car in sewing device Kind.
At present, when sewing terminates trimming, because needle gage can not be adjusted, bottom line the end of a thread of a needle gage is unable to shape to flat seam machine Into self-locking, two the end of a thread that present that one is long and the other is short at the material trimming of sewing, and both threads head one is long and the other is short, one is previous Afterwards, cause the end of a thread stayed after trimming insecure, gently one pull drawing and will come off, affect sewing efficiency.In addition, the end of a thread is longer, Lack aesthetic feeling.
The content of the invention
It is to be solved by this invention the present invention be directed to the above-mentioned problems in the prior art, there is provided a kind of sewing machine Technical problem is:How to realize during trimming close joint or can needle space changable improve sewing efficiency.
The purpose of the present invention can be realized by following technical proposal:
A kind of sewing machine, includes driver one and connecting rod one, and connecting rod one is rotatably connected on chassis backplane, and connecting rod one One end be connected with the movable part of driver one, the movable part connection of the other end and driver two, and the movable part of driver two Also it is connected with connecting rod two, connecting rod two drives rotation to enable its other end drivening rod two to move realization and adjusts to phase by driver one Needle gage close joint is answered, the action of the driver one is by controller control.
In a kind of above-mentioned sewing machine, the connecting rod one is connected on chassis backplane by connecting shaft, and the energy of connecting rod one Rotate around connecting shaft.
In a kind of above-mentioned sewing machine, ejector pin, ejector pin and connecting rod one are provided with the movable part of the driver one One end abuts, and is rotated by the movable part drive link one of driver one.
In a kind of above-mentioned sewing machine, the driver one is electromagnet assembly, and electromagnet assembly is by electric magnet Frame is arranged on chassis backplane.
In a kind of above-mentioned sewing machine, the connecting shaft is axial screw.
In a kind of above-mentioned sewing machine, torsion spring is arranged with the connecting shaft, the pivoted arm of torsion spring is connected to connecting rod One with chassis backplane on, torsion spring drivening rod one automatically resets.
In a kind of above-mentioned sewing machine, the one end on the connecting rod two near driver two is provided with spacer pin, connecting rod Two other end is abutted with spacer pin and interacted.
In a kind of above-mentioned sewing machine, the outer end of the movable part of the driver two is provided with overcoat, connecting rod one it is another One end abuts and interacts with the overcoat.
In a kind of above-mentioned sewing machine, the other end of the connecting rod one is provided with fluting, and one end of connecting rod two is arranged on The other end that connecting rod one is made in fluting is located at the side of overcoat and can abut with overcoat.
In a kind of above-mentioned sewing machine, the driver two is to backstitch electromagnet assembly.
Compared with prior art, the present invention has advantages below:
The present invention can solve the problem that in prior art after trimming the end of a thread, and one is long and the other is short unsightly and the end of a thread is long after trimming Problem, and needle gage when sewing can be adjusted by frame for movement.Carried out before trimming a bit of close joint or can needle space changable seam Thread, make the end of a thread after trimming shorten, the end of a thread for staying is connected firmly, pull difficult for drop-off after drawing, improve sewing efficiency, increased U.S. Sight degree.
Description of the drawings
Fig. 1 is the structural representation that connecting rod one is abutted with spacer pin and interacted in the present invention.
Fig. 2 be the present invention connecting rod one with backstitch the structural representation that electric magnet core retainer plate is abutted and interacted.
Fig. 3 is the schematic diagram for backstitching electric magnet core retainer plate of the present invention.
Fig. 4 is that the other end of the connecting rod one of the present invention arranges slotted schematic diagram.
Fig. 5 be the present invention connecting rod one with backstitch the schematic perspective view that electric magnet core retainer plate is abutted and interacted.
In figure, 1, connecting rod one;2nd, chassis backplane;3rd, connecting rod two;4th, the automatic crank of falling feeding;5th, the automatic pull bar of falling feeding; 6th, panel seat is swung;7th, trimming electromagnet assembly;8th, axial screw;9th, ejector pin;10 electromagnet assemblies;11st, electromagnet stent;12、 Electromagnet core;13rd, electromagnet assembly is backstitched;14th, electromagnet core is backstitched;15th, torsion spring;16th, spacer pin;17th, riser;18、 Backstitch electric magnet core retainer plate;19th, horizontal part;20th, link pin;21st, vertical portion;22nd, slot.
Specific embodiment
The following is the specific embodiment of the present invention and combine accompanying drawing 1-5, technical scheme is further retouched State, but the present invention is not limited to these embodiments.
A kind of sewing machine, includes driver one and connecting rod 1, and connecting rod 1 is rotatably connected on chassis backplane 2, and even One end of bar 1 is connected with the movable part of driver one, the connection of the movable part of the other end and driver two, and the work of driver two Dynamic portion is also connected with connecting rod 23, and connecting rod 1 drives rotation its other end drivening rod 23 is moved by driver one, connecting rod 23 drive the crank of falling feeding 4 automatically, then act on swing panel seat 6 by the automatic pull bar of falling feeding 5 and are controlled by swing panel seat 6 Needle gage, the needle gage for making below is changed into when driver one is installed default respective needle away from (including the arbitrary value including 0 needle gage or negative Value, i.e., reversely sew), the now holding action of driver one makes sewing machine walk to set pin number under corresponding little needle gage, realizes close Seam, the driver one, the action of driver two are by controller control.Controller control trimming electromagnetism after setting pin number is covered The work of iron component 7 carries out trimming, and the action of controller control driver one after the completion of trimming is cancelled, cloth feed amount when can make trimming Reduce, the end of a thread becomes shorter.It is of course also possible to after close joint action is completed, the action for controlling driver one by controller is cancelled. The present invention due to carried out before trimming a bit of close joint or can needle space changable sewing, make the end of a thread after trimming shorten, the end of a thread for staying It is connected firmly, pulls difficult for drop-off after drawing, improve sewing efficiency, increased aesthetics.
Connecting rod of the present invention 1 is connected on chassis backplane 2 by connecting shaft, and connecting rod 1 can swing around connecting shaft.
Preferably, the connecting shaft is axial screw 8.Because axial screw 8 is easy for installation, it is connected firmly.Certainly, even Spindle can also use the screwed optical axis in one end, but, for positioning linkage rod 1, then need the other end in optical axis to arrange Back-up ring or jump ring etc..
In addition, being provided with ejector pin 9 on the movable part of the driver one, ejector pin 9 is abutted with one end of connecting rod 1, and by The movable part drive link 1 of driver one is rotated.When the movable part of driver one is protruding, ejector pin 9 acts on connecting rod One 1 one end so as to rotate around connecting shaft.It is of course also possible to arrange arcuate groove, the work of driver one in one end of connecting rod 1 Dynamic portion is located in the arcuate groove of connecting rod 1 and is attached.
Further, driver of the present invention is electromagnet assembly 10, and electromagnet assembly 10 passes through electromagnet stent 11 are arranged on chassis backplane 2.Certainly, driver one can also be using cylinder alternatively.Comparatively, electric magnet In this configuration using effect is more preferably for component 10.Correspondingly, the movable part of driver one is electromagnet core 12.
Equally, driver of the present invention two is to backstitch electromagnet assembly 13.Certainly, driver two can also adopt gas Cylinder is alternatively.Comparatively, in this configuration using effect is more preferably to backstitch electromagnet assembly 13.Correspondingly, drive The movable part of device two is to backstitch electromagnet core 14.
In order that connecting rod 1 can automatically reset, the present embodiment is arranged with torsion spring 15 in the connecting shaft, and torsion spring 15 turns Arm is connected on connecting rod 1 and chassis backplane 2, and in the case of the event resolves of driver one, torsion spring 15 can the company of drive Bar 1 automatically resets.
In the present embodiment, the one end on the connecting rod 23 near driver two is provided with spacer pin 16, connecting rod 1 The other end is abutted and interacted with spacer pin 16.The riser 17 that the other end of connecting rod 1 is formed for bending, the end face of riser 17 Abut and interact with spacer pin 16.
The operation principle of said structure is:When obtain trimming instruct when, electromagnet assembly 10 starts, electromagnet core 12 to Overhang drive ejector pin 9 to move right, promote connecting rod 1 it is rotated around rotary shaft in moving process, it is certain when turning to After angle, the other end of connecting rod 1 abuts with spacer pin 16 and interacts to make to backstitch electromagnet core 14 and inside contracts, due to connecting rod 23 are connected to and backstitch on electromagnet core 14, therefore, drivening rod 23 is moved, and connecting rod 23 drives the crank of falling feeding 4 automatically, Then swing panel seat 6 is acted on by the automatic pull bar of falling feeding 5 and needle gage is controlled by swing panel seat 6, make needle gage below be changed into electricity The default little needle gage (including the arbitrary value including 0 needle gage or the needle gage of negative value, i.e., reversely sewing) when installing of magnet assemblies 10, this When controller control the holding action of electromagnet assembly 10, make sewing machine walk to set pin number under little needle gage, when cover setting pin number Afterwards controller control trimming electromagnet assembly 7 works, and reaches the effect of trimming, controller control electromagnet assembly after the completion of trimming 10 action is cancelled, and connecting rod 1 automatically resets.In addition, the action of controller control electromagnet assembly 10 is cancelled and can also be set After sewing machine covers setting pin number, before the work of controller control trimming electromagnet assembly 7.
Alternatively, the outer end of the movable part of the driver two is provided with overcoat, the overcoat of the present embodiment To backstitch electric magnet core retainer plate 18.18 one-tenth U-shapeds of electric magnet core retainer plate are backstitched, two horizontal parts 19 are located at backstitch electromagnet core 14 respectively Upper and lower surface, and be connected to together with one end of connecting rod 23 by link pin 20 and backstitch on electromagnet core 14, and backstitch electromagnetism The vertical portion 21 of iron core sleeve 18 is located at and backstitches the front end of electromagnet core 14, and the other end of connecting rod 1 is equally also formed for bending Riser 17, the vertical portion 21 that riser 17 backstitches electric magnet core retainer plate 18 with this abuts and interacts.
Further, the other end of the connecting rod 1 is provided with fluting 22, and one end of connecting rod 23 is arranged in fluting 22 The other end of connecting rod 1 is made positioned at the side for backstitching electric magnet core retainer plate 18 and can be abutted with electric magnet core retainer plate 18 is backstitched.
The operation principle of said structure is:When obtain trimming instruct when, electromagnet assembly 10 starts, electromagnet core 10 to Overhang drive ejector pin 9 to move right, promote connecting rod 1 to rotate around rotary shaft in moving process.When turning to certain angle Afterwards, the other end of connecting rod 1 is abutted and interacted with electric magnet core retainer plate 18 is backstitched, so as to drive by link pin 20 with backstitch What electric magnet core retainer plate 18 was connected backstitch electromagnet core 14 inside contracts, and backstitches the motion of 14 drivening rod of electromagnet core 23, connecting rod 23 drive the crank of falling feeding 4 automatically, then act on swing panel seat 6 by the automatic pull bar of falling feeding 5 and are controlled by swing panel seat 6 Needle gage, the needle gage for making below is changed into when electromagnet assembly 10 is installed default little needle gage (including the arbitrary value including 0 needle gage or negative The needle gage of value, i.e., reversely sew), the now controller control holding action of electromagnet assembly 10 makes sewing machine walk under little needle gage Setting pin number, trimming electromagnet assembly 7 works after setting pin number is covered, and reaches the effect of trimming, controller after the completion of trimming The action of control electromagnet assembly 10 is cancelled, and connecting rod 1 automatically resets.Equally, controller controls the action of electromagnet assembly 10 Cancellation can also be set in before sewing machine is covered after setting pin number, controller control trimming electromagnet assembly 7 works.
Specific embodiment described herein is only explanation for example spiritual to the present invention.Technology neck belonging to of the invention The technical staff in domain can be made various modifications to described specific embodiment or supplement or replaced using similar mode Generation, but without departing from the spiritual of the present invention or surmount scope defined in appended claims.

Claims (10)

1. a kind of sewing machine, it is characterised in that:Driver one and connecting rod one (1) are included, connecting rod one (1) is rotatably connected on casing On base plate (2), and one end of connecting rod one (1) is connected with the movable part of driver one, the movable part of the other end and driver two connects Connect, and the movable part of driver two is also connected with connecting rod two (3), connecting rod one (1) drives rotation to make its other end by driver one The energy motion of drivening rod two (3) realizes adjusting to respective needle that away from close joint the action of the driver one is by controller control.
2. a kind of sewing machine according to claim 1, it is characterised in that:The connecting rod one (1) is connected to by connecting shaft On chassis backplane (2), and connecting rod one (1) can be rotated around connecting shaft.
3. a kind of sewing machine according to claim 1 and 2, it is characterised in that:Arrange on the movable part of the driver one There is ejector pin (9), ejector pin (9) is abutted with one end of connecting rod one (1), and rotated by the movable part drive link one (1) of driver one.
4. a kind of sewing machine according to claim 1 and 2, it is characterised in that:The driver one is electromagnet assembly (10), electromagnet assembly (10) is arranged on chassis backplane (2) by electromagnet stent (11).
5. a kind of sewing machine according to claim 2, it is characterised in that:The connecting shaft is axial screw (8).
6. a kind of sewing machine according to claim 2 or 5, it is characterised in that:Torsion spring (15) is arranged with the connecting shaft, The pivoted arm of torsion spring (15) is connected on connecting rod one (1) and chassis backplane (2), and torsion spring (15) drivening rod one (1) is automatically multiple Position.
7. a kind of sewing machine according to claim 1, it is characterised in that:Near driver two on the connecting rod two (3) One end is provided with spacer pin (16), and the other end of connecting rod one (1) is abutted and interacted with spacer pin (16).
8. a kind of sewing machine according to claim 1, it is characterised in that:The outer end of the movable part of the driver two is arranged The other end for having overcoat, connecting rod one (1) is abutted and interacted with the overcoat.
9. a kind of sewing machine according to claim 8, it is characterised in that:The other end of the connecting rod one (1) is provided with out Groove (22), one end of connecting rod two (3) be arranged in fluting (22) make connecting rod one (1) the other end be located at overcoat side and can be with Overcoat is abutted.
10. a kind of sewing machine according to claim 1, it is characterised in that:The driver two is to backstitch electromagnet assembly (13)。
CN201611210590.6A 2016-12-24 2016-12-24 Sewing machine Active CN106637733B (en)

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Application Number Priority Date Filing Date Title
CN201611210590.6A CN106637733B (en) 2016-12-24 2016-12-24 Sewing machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201611210590.6A CN106637733B (en) 2016-12-24 2016-12-24 Sewing machine

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CN106637733A true CN106637733A (en) 2017-05-10
CN106637733B CN106637733B (en) 2019-12-24

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107326555A (en) * 2017-08-07 2017-11-07 杰克缝纫机股份有限公司 A kind of sewing machine
CN108796856A (en) * 2018-06-08 2018-11-13 杰克缝纫机股份有限公司 Sewing machine automatic shearing mechanism
CN109023746A (en) * 2018-08-09 2018-12-18 杰克缝纫机股份有限公司 A kind of method and device adjusting flush joint needle pitch
CN109554850A (en) * 2018-11-14 2019-04-02 杰克缝纫机股份有限公司 A kind of secret needle short-term head device of sewing and sewing machine
CN109736023A (en) * 2018-12-15 2019-05-10 浙江速客智能科技有限公司 A kind of driving device and its control method of sewing machine
CN109736032A (en) * 2019-01-11 2019-05-10 杰克缝纫机股份有限公司 Backstitch mechanism

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1208089A (en) * 1997-08-12 1999-02-17 飞马缝纫机制造株式会社 Method and apparatus for preventing stitch loosening
CN201250335Y (en) * 2008-08-22 2009-06-03 阮孟定 Backstitch device capable of automatically adjusting needle gauge
CN201354405Y (en) * 2009-02-06 2009-12-02 中国标准缝纫机公司上海惠工缝纫机三厂 Differential motion seam adjusting mechanism of compound feeding seamer
CN103088563A (en) * 2013-01-17 2013-05-08 新杰克缝纫机股份有限公司 Method and device for shortening flat sewing machine trimmed thread
CN203049231U (en) * 2013-01-17 2013-07-10 新杰克缝纫机股份有限公司 Device with shortened lockstitch sewing machine threads after thread trimming
CN203049236U (en) * 2013-01-17 2013-07-10 新杰克缝纫机股份有限公司 Device shortening lockstitch sewing machine trimmed thread
JP5925603B2 (en) * 2012-05-31 2016-05-25 Juki株式会社 sewing machine

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1208089A (en) * 1997-08-12 1999-02-17 飞马缝纫机制造株式会社 Method and apparatus for preventing stitch loosening
CN201250335Y (en) * 2008-08-22 2009-06-03 阮孟定 Backstitch device capable of automatically adjusting needle gauge
CN201354405Y (en) * 2009-02-06 2009-12-02 中国标准缝纫机公司上海惠工缝纫机三厂 Differential motion seam adjusting mechanism of compound feeding seamer
JP5925603B2 (en) * 2012-05-31 2016-05-25 Juki株式会社 sewing machine
CN103088563A (en) * 2013-01-17 2013-05-08 新杰克缝纫机股份有限公司 Method and device for shortening flat sewing machine trimmed thread
CN203049231U (en) * 2013-01-17 2013-07-10 新杰克缝纫机股份有限公司 Device with shortened lockstitch sewing machine threads after thread trimming
CN203049236U (en) * 2013-01-17 2013-07-10 新杰克缝纫机股份有限公司 Device shortening lockstitch sewing machine trimmed thread

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107326555A (en) * 2017-08-07 2017-11-07 杰克缝纫机股份有限公司 A kind of sewing machine
CN107326555B (en) * 2017-08-07 2020-01-31 杰克缝纫机股份有限公司 kinds of sewing machine
CN108796856A (en) * 2018-06-08 2018-11-13 杰克缝纫机股份有限公司 Sewing machine automatic shearing mechanism
CN108796856B (en) * 2018-06-08 2020-10-02 杰克缝纫机股份有限公司 Automatic thread trimming mechanism of sewing machine
CN109023746A (en) * 2018-08-09 2018-12-18 杰克缝纫机股份有限公司 A kind of method and device adjusting flush joint needle pitch
CN109023746B (en) * 2018-08-09 2021-03-30 杰克缝纫机股份有限公司 Method and device for adjusting stitch length of flat sewing machine
CN109554850A (en) * 2018-11-14 2019-04-02 杰克缝纫机股份有限公司 A kind of secret needle short-term head device of sewing and sewing machine
CN109736023A (en) * 2018-12-15 2019-05-10 浙江速客智能科技有限公司 A kind of driving device and its control method of sewing machine
CN109736032A (en) * 2019-01-11 2019-05-10 杰克缝纫机股份有限公司 Backstitch mechanism

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