CN206580985U - A kind of sewing machine - Google Patents
A kind of sewing machine Download PDFInfo
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- CN206580985U CN206580985U CN201720299852.4U CN201720299852U CN206580985U CN 206580985 U CN206580985 U CN 206580985U CN 201720299852 U CN201720299852 U CN 201720299852U CN 206580985 U CN206580985 U CN 206580985U
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- connecting rod
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- sewing machine
- idle stroke
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Abstract
The utility model belongs to sewing device technical field, is related to a kind of sewing machine.Include driver and the connecting rod being rotatably connected on chassis backplane, and one end of connecting rod and the movable part connection of driver, one end of the other end and idle stroke connecting rod are connected, the other end of idle stroke connecting rod is connected with the automatic crank of falling feeding, connecting rod by driver driving rotation enable its other end the automatic crank-operated of falling feeding is driven by idle stroke connecting rod so that driving sewing length adjustment device adjust to corresponding close joint or can needle space changable, the action of the driver is by controller control.Idle stroke connecting rod of the present utility model drives the automatic crank-operated of falling feeding by way of pulling, reduce the requirement to the driving force of driver, on the premise of current solenoid actuated power, controller is not changed, needle gage adjustment structure is reached the position specified when can reach trimming and accurately change the effect of needle gage, and then reach preferable short-term head.
Description
Technical field
The utility model belongs to sewing device technical field, is related to a kind of sewing machine.
Background technology
Sewing machine for covering chain stitch forms a kind of stitching mainly with a sewing thread on sewing, hands over one or more layers sewing
The machine knitted or united 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 being knitted, underwear, shirt, uniform etc., 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.
Flat seam machine is when sewing terminates trimming, because needle gage can not be adjusted, and bottom line the end of a thread of a needle gage can not be formed certainly
Lock, two the end of a thread that show that one is long and the other is short at the material trimming of sewing, and also one is long and the other is short for both threads head, one in front and one in back, leads
Cause the end of a thread for leaving after trimming insecure, gently one pull drawing and will come off, influence sewing efficiency.In addition, the end of a thread is longer, lack beautiful
Sense.
In order to improve above-mentioned phenomenon, following solutions are occurred in that at present, in industry：
One end of connecting rod one is connected on the electromagnet core of electromagnet assembly, the other end and the electricity for backstitching electromagnet assembly
The connection members such as spacer pin or adapter sleeve on pole core are abutted, and one end of connecting rod two is connected to the electricity for backstitching electromagnet assembly
On pole core, and connecting rod one is rotatably connected on chassis backplane, is rotated by electromagnet assembly drive link one, and then promotes
Stitch the electromagnet core retraction of electromagnet assembly and then the motion of drivening rod two realizes regulation to respective needle away from close joint.
Structure connecting rod one in action process is to promote the electromagnet core for backstitching electromagnet assembly, it is necessary to electromagnet group
Part provides larger driving force.Therefore, the electromagnet assembly in the structure has the problem of driving force is not enough, when causing trimming
Needle gage adjustment structure be unable to reach the position specified, then can not accurately change needle gage, thus be unable to reach preferably it is short
The end of a thread.Specific the reason for, is that the cooperation of current automatically controlled and electromagnet can not meet force and require.
The content of the invention
The utility model is that there is provided a kind of sewing machine, the utility model institute for the above-mentioned problems in the prior art
The technical problem to be solved is：When how to realize trimming close joint or can needle space changable improve sewing efficiency.
The purpose of this utility model can be realized by following technical proposal：
A kind of sewing machine, includes driver and the connecting rod being rotatably connected on chassis backplane, and one end and the drive of connecting rod
The one end for moving movable part connection, the other end and the idle stroke connecting rod of device is connected, the other end of idle stroke connecting rod and feeding automatically
Crank is connected, and connecting rod enables its other end to drive the automatic crank-operated of falling feeding by idle stroke connecting rod by driver driving rotation
And then drive sewing length adjustment device adjust to corresponding close joint or can needle space changable, the action of the driver is by controller control.
In a kind of above-mentioned sewing machine, the connecting rod is connected on chassis backplane by connecting shaft, and connecting rod can be around even
Spindle is rotated.
In a kind of above-mentioned sewing machine, one end of ejector pin, ejector pin and connecting rod is provided with the movable part of the driver
Abut, rotated by the movable part drive link of driver.
In a kind of above-mentioned sewing machine, the driver is electromagnet assembly, and electromagnet assembly passes through electromagnet stent
It is arranged on chassis backplane.
In a kind of above-mentioned sewing machine, the connecting shaft is axial screw one.
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
With on chassis backplane, torsion spring drivening rod automatically resets.
In a kind of above-mentioned sewing machine, the other end of the idle stroke connecting rod and the automatic crank of falling feeding pass through axle position spiral shell
Nail two is connected.
In a kind of above-mentioned sewing machine, the other end of the idle stroke connecting rod is provided with bar hole, and axial screw two connects
It is arranged on after being connected to the dynamic crank of falling feeding in the bar hole of idle stroke connecting rod.
Compared with prior art, the utility model has advantages below：
1st, the utility model can solve the problem that after trimming in the prior art the end of a thread one is long and the other is short the end of a thread unsightly and after trimming
Long the problem of, and needle gage when sewing can be adjusted by mechanical structure.A bit of close joint or variable has been carried out before trimming
Needle gage is sewed, and the end of a thread after trimming is shortened, the end of a thread left is connected firmly, and is pulled difficult for drop-off after drawing, is improved sewing efficiency, increases
Aesthetics is added.
2nd, idle stroke connecting rod of the present utility model drives the automatic crank-operated of falling feeding by way of pulling, and reduction is to driving
The requirement of the driving force of dynamic device, on the premise of current solenoid actuated power, controller is not changed, makes pin when can reach trimming
The position specified is reached away from adjustment structure and accurately changes the effect of needle gage, and then reaches preferable short-term head.
Brief description of the drawings
Fig. 1 is upward view of the present utility model.
Fig. 2 is one of schematic perspective view of the present utility model.
Fig. 3 is the two of schematic perspective view of the present utility model.
Fig. 4 is the schematic diagram of idle stroke connecting rod of the present utility model.
Fig. 5 is the schematic diagram of connecting rod of the present utility model.
In figure, 1, chassis backplane；2nd, connecting rod；3rd, idle stroke connecting rod；4th, axial screw two；5th, the automatic crank of falling feeding；6、
Feed regulator；7th, feeding regulation pitch；8th, the automatic pull bar of falling feeding；9th, panel seat is swung；10th, the connecting rod of falling feeding；11st, trimming electricity
Magnet assemblies；12nd, axial screw one；13rd, ejector pin；14th, electromagnet assembly；15th, electromagnet stent；16th, electromagnet core；17、
Torsion spring；18th, bar hole；19th, the automatic connecting rod of falling feeding；20th, electromagnet assembly is backstitched.
Embodiment
The following is specific embodiment of the utility model and with reference to accompanying drawing 1-5, the technical solution of the utility model is made into
The description of one step, but the utility model is not limited to these embodiments.
A kind of sewing machine, the connecting rod 2 for including driver and being rotatably connected on chassis backplane 1, and one end of connecting rod 2 with
The movable part connection of driver, one end of the other end and idle stroke connecting rod 3 are connected, the other end of idle stroke connecting rod 3 with it is automatic fall
Feeding crank 5 is connected, and connecting rod 2 enables its other end to drive feeding automatically by idle stroke connecting rod 3 by driver driving rotation
Crank 5 acts and then drives sewing length adjustment device to adjust to corresponding close joint or can needle space changable.
Wherein sewing length adjustment device includes：Feed regulator 6 and feeding regulation pitch 7.After the automatic crank of falling feeding 5 is acted
Swing panel seat 9 is acted on by the pull bar of falling feeding 8 automatically, the connecting rod of falling feeding 10, feed regulator are driven by swing panel seat 9 successively
6, feed regulator 6 adjusts the position between pitch 7 feeding after acting and changed, and then can control needle gage, make behind
Needle gage be changed into when driver is installed default respective needle away from (arbitrary value or negative value including 0 needle gage, i.e., reversely sew),
Now driver holding is acted, and sewing machine is walked to set pin number under corresponding small needle gage, realizes close joint, the driver it is dynamic
Make by controller control.
Controller control trimming electromagnet assembly 11, which works, after setting pin number is covered controlled after the completion of trimming, trimming
The action of device control driver is cancelled, and can reduce cloth feed amount during trimming, the end of a thread becomes shorter.It is of course also possible to complete
After close joint action, the action for controlling driver by controller is cancelled.
Carried out before trimming a bit of close joint or can needle space changable sewing, the end of a thread after trimming is shortened, the end of a thread for leaving connects
Connect firmly, pull difficult for drop-off after drawing, improve sewing efficiency, add aesthetics.
Because the utility model is to drive idle stroke connecting rod 3 to pull the automatic crank of falling feeding 5 by connecting rod 2, it is possible to reduce
Requirement to driver driving force, improves the accuracy for changing needle gage effect.
Specifically, connecting rod 2 described in the utility model is connected on chassis backplane 1 by connecting shaft, and connecting rod 2 can be around connection
Axle is swung.
Preferably, the connecting shaft is axial screw 1.Because axial screw 1 is easy for installation, it is connected firmly.
Certainly, connecting shaft can also use the screwed optical axis in one end, still, for positioning linkage rod 2, then need the other end in optical axis
Back-up ring or jump ring etc. are set.
In addition, being provided with ejector pin 13 on the movable part of the driver, ejector pin 13 is abutted with one end of connecting rod 2, and by driving
The movable part drive link 2 of dynamic device is rotated.When the movable part of driver is protruding, ejector pin 13 acts on one end of connecting rod 2,
It is set to be rotated around connecting shaft.It is of course also possible to directly can also be connected in connecting rod 2 with the movable part of driver.
Further, driver described in the utility model is electromagnet assembly 14, and electromagnet assembly 14 passes through electromagnet
Support 15 is arranged on chassis backplane 1.Certainly, driver can also be using cylinder alternatively.Comparatively, electromagnetism
Using effect is more preferably in this configuration for iron component 14.Correspondingly, the movable part of driver is electromagnet core 16.
In order that connecting rod 2 can automatically reset, the present embodiment is arranged with torsion spring 17, the pivoted arm of torsion spring 17 in the connecting shaft
It is connected to connecting rod 2 and on chassis backplane 1, in the case of the event resolves of driver, the energy drivening rod 2 of torsion spring 17 is automatic
Reset.
The operation principle of said structure is：
When obtaining trimming instruction, electromagnet assembly 14 starts, and electromagnet core 16 is protruding to drive ejector pin 13 to the right
It is mobile, promote connecting rod 2 it is rotated around rotary shaft in moving process, after certain angle is turned to, the other end of connecting rod 2 leads to
Cross drive idle stroke connecting rod 3 to act, idle stroke connecting rod 3 drives the automatic crank of falling feeding 5, then passes through the pull bar of falling feeding 8 automatically
Swing panel seat 9 is acted on, panel seat 9 is swung and drives the connecting rod of falling feeding 10, the control needle gage of feed regulator 6 successively, make pin below
Away from be changed into default small needle gage when electromagnet assembly 14 is installed (needle gage of arbitrary value or negative value including 0 needle gage, i.e., it is reverse
Sewing), now controller control electromagnet assembly 14 holding action makes sewing machine walk to set pin number under small needle gage, when covering
Controller control trimming electromagnet assembly 11 is worked after setting pin number, and controller is controlled after the completion of reaching the effect of trimming, trimming
The action of electromagnet assembly 14 is cancelled, and connecting rod 2 automatically resets.In addition, the action of controller control electromagnet assembly 14 is cancelled
May be set in sewing machine cover setting pin number after, before controller control trimming electromagnet assembly 11 works.
Further, the other end of the idle stroke connecting rod 3 and the automatic crank of falling feeding 5 are connected by axial screw 24.
Axial screw 24 can also be with being replaced axial screw 1 with optical axis and back-up ring or jump ring etc..
After the other end of idle stroke connecting rod 3 is provided with bar hole 18, the automatic crank of falling feeding 5 of the connection of axial screw 24
It is arranged in the bar hole 18 of idle stroke connecting rod 3.
Idle stroke connecting rod 3 is superimposed setting by the utility model with the automatic connecting rod of falling feeding 19, and axial screw 24 is sequentially connected
It is arranged on after one end of the automatic connecting rod of falling feeding 19, the automatic crank of falling feeding 5 in the bar hole 18 of idle stroke connecting rod 3.Wherein, certainly
The other end of the dynamic connecting rod of falling feeding 19 is connected with backstitching the iron core of electromagnet assembly 20.Due to being provided with bar on idle stroke connecting rod 3
Shape hole 18, when backstitching the action of electromagnet assembly 20, also will not drive idle stroke connecting rod 3 to act.That is, idle stroke connecting rod
3 setting will not interfere with the action of automatic Backsewing unit.
Specific embodiment described herein is only to the utility model spirit explanation for example.The utility model institute
Category those skilled in the art can make various modifications or supplement or using similar to described specific embodiment
Mode substitute, but without departing from spirit of the present utility model or surmount scope defined in appended claims.
Claims (8)
1. a kind of sewing machine, it is characterised in that：The connecting rod (2) for including driver and being rotatably connected on chassis backplane (1), and
One end of connecting rod (2) and one end of the movable part connection of driver, the other end and idle stroke connecting rod (3) are connected, idle stroke connecting rod
(3) the other end is connected with the automatic crank of falling feeding (5), and connecting rod (2) enables its other end to pass through sky by driver driving rotation
Stroke linkage (3) drives the automatic crank of falling feeding (5) action and then driving sewing length adjustment device is adjusted to corresponding close joint or can
Needle space changable, the action of the driver is by controller control.
2. a kind of sewing machine according to claim 1, it is characterised in that：The connecting rod (2) is connected to machine by connecting shaft
On shell bottom plate (1), and connecting rod (2) can be rotated around connecting shaft.
3. a kind of sewing machine according to claim 1 or 2, it is characterised in that：It is provided with the movable part of the driver
Ejector pin (13), ejector pin (13) is abutted with one end of connecting rod (2), is rotated by the movable part drive link (2) of driver.
4. a kind of sewing machine according to claim 1 or 2, it is characterised in that：The driver is electromagnet assembly (14),
Electromagnet assembly (14) is arranged on chassis backplane (1) by electromagnet stent (15).
5. a kind of sewing machine according to claim 2, it is characterised in that：The connecting shaft is axial screw one (12).
6. a kind of sewing machine according to claim 2 or 5, it is characterised in that：Torsion spring (17) is arranged with the connecting shaft,
The pivoted arm of torsion spring (17) is connected to connecting rod (2) and on chassis backplane (1), torsion spring (17) drivening rod (2) automatically resets.
7. a kind of sewing machine according to claim 1, it is characterised in that：The other end of the idle stroke connecting rod (3) and from
The dynamic crank of falling feeding (5) is connected by axial screw two (4).
8. a kind of sewing machine according to claim 7, it is characterised in that：The other end of the idle stroke connecting rod (3) is set
There is the bar hole that idle stroke connecting rod (3) are arranged on after bar hole (18), the automatic crank of falling feeding (5) of axial screw two (4) connection
(18) in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720299852.4U CN206580985U (en) | 2017-03-25 | 2017-03-25 | A kind of sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720299852.4U CN206580985U (en) | 2017-03-25 | 2017-03-25 | A kind of sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206580985U true CN206580985U (en) | 2017-10-24 |
Family
ID=60114115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720299852.4U Active CN206580985U (en) | 2017-03-25 | 2017-03-25 | A kind of sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206580985U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108286133A (en) * | 2018-03-23 | 2018-07-17 | 浙江美机缝纫机有限公司 | The close joint device of sewing machine |
| CN108611769A (en) * | 2018-06-29 | 2018-10-02 | 杰克缝纫机股份有限公司 | A kind of sewing machine |
| CN108796841A (en) * | 2018-06-29 | 2018-11-13 | 杰克缝纫机股份有限公司 | A kind of sewing machine |
| CN109208197A (en) * | 2018-10-11 | 2019-01-15 | 阮积康 | A kind of adjustable electric control driving device of sewing needle distance density |
| CN109295623A (en) * | 2018-12-04 | 2019-02-01 | 浙江海洋大学 | A kind of sewing machine |
| CN110130003A (en) * | 2019-06-27 | 2019-08-16 | 廊坊市东平汽车零配件有限公司 | A kind of application method of sewing machine and sewing machine |
-
2017
- 2017-03-25 CN CN201720299852.4U patent/CN206580985U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108286133A (en) * | 2018-03-23 | 2018-07-17 | 浙江美机缝纫机有限公司 | The close joint device of sewing machine |
| CN108611769A (en) * | 2018-06-29 | 2018-10-02 | 杰克缝纫机股份有限公司 | A kind of sewing machine |
| CN108796841A (en) * | 2018-06-29 | 2018-11-13 | 杰克缝纫机股份有限公司 | A kind of sewing machine |
| CN108796841B (en) * | 2018-06-29 | 2021-01-05 | 杰克缝纫机股份有限公司 | Sewing machine |
| CN108611769B (en) * | 2018-06-29 | 2021-04-02 | 杰克缝纫机股份有限公司 | Sewing machine |
| CN109208197A (en) * | 2018-10-11 | 2019-01-15 | 阮积康 | A kind of adjustable electric control driving device of sewing needle distance density |
| CN109295623A (en) * | 2018-12-04 | 2019-02-01 | 浙江海洋大学 | A kind of sewing machine |
| CN110130003A (en) * | 2019-06-27 | 2019-08-16 | 廊坊市东平汽车零配件有限公司 | A kind of application method of sewing machine and sewing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 318000 no.1008, east section of Donghai Avenue, Sanjia, Jiaojiang District, Taizhou City, Zhejiang Province Patentee after: Jack Technology Co.,Ltd. Address before: 318010 No. 15 Airport South Road, Jiaojiang District, Zhejiang, Taizhou Patentee before: JACK SEWING MACHINE Co.,Ltd. |