CN208293216U - A kind of sewing machine and its can needle space changable mechanism - Google Patents
A kind of sewing machine and its can needle space changable mechanism Download PDFInfo
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- CN208293216U CN208293216U CN201820680630.1U CN201820680630U CN208293216U CN 208293216 U CN208293216 U CN 208293216U CN 201820680630 U CN201820680630 U CN 201820680630U CN 208293216 U CN208293216 U CN 208293216U
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- lever
- driver
- crank
- sewing machine
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- 238000009958 sewing Methods 0.000 title claims abstract description 28
- 230000007246 mechanism Effects 0.000 title claims abstract description 26
- 239000004744 fabric Substances 0.000 claims abstract description 21
- 230000004913 activation Effects 0.000 claims abstract description 6
- 238000005452 bending Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract description 9
- 230000008859 change Effects 0.000 abstract description 7
- 238000005516 engineering process Methods 0.000 abstract description 4
- 230000010355 oscillation Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000006399 behavior Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- Sewing Machines And Sewing (AREA)
Abstract
The utility model relates to sewing device technical fields, disclose a kind of sewing machine and its can needle space changable mechanism, including driver (3), lever (6), crank (7), cloth pushing shaft (8), feeding crank (10), crank (7) is connect with one end of cloth pushing shaft (8), feeding crank (10) is connect with the other end of cloth pushing shaft (8), one end of lever (6) is connect with driver (3), driver (3) is equipped with the movable part (2) connecting with driver (3), driver (3) is swung by movable part (2) activation lever (6), the other end of lever (6) is connect with crank (7), lever (6) drives crank (7) to swing, crank (7), which is swung, drives cloth pushing shaft (8) to swing.The utility model limits the amplitude of oscillation of feeding crank by cloth pushing shaft, to achieve the purpose that change needle gage, facilitates the adjusting of needle gage, this technology structure is simple, the vibration of machine is small, noise is small and stable transmission.
Description
Technical field
The utility model relates to sewing device technical field more particularly to a kind of sewing machines and its can needle space changable mechanism.
Background technique
Under As-Is, sewing machine for covering chain stitch in sewing, fix, can not change by needle gage, can only if necessary to change needle gage
When stopping sewing, sewing length adjustment device is adjusted to change needle gage size.
And the prior art, if the close joint device in patent CN106835531A includes connecting rod one, connecting rod one is rotatablely connected
On chassis backplane, and one end of connecting rod one is connect with the movable part of driver one, the movable part company of the other end and driver three
It connects, and the movable part of driver three is also connect with connecting rod two, rotated by one drive link one of driver and then connecting rod two is driven to transport
Dynamic, connecting rod two drives the automatic crank of falling feeding, is then acted on by the pull rod of falling feeding automatically and swings panel seat by swing panel seat control
Needle gage processed, but this mechanism, by the transmission of multi link, not only mechanism is complicated, it is easier to cause that machine vibration is big, noise is loud and
It is driven unstable problem.
Summary of the invention
The utility model is for structure is complicated in the prior art, be easy to cause that machine vibration is big, noise is loud, transmission is unstable
Disadvantage, provides that a kind of structure is simple, does not allow to easily cause small machine vibration, noise, stable transmission sewing machine and its variable needle
Spacing mechanism.
In order to solve the above-mentioned technical problem, the utility model is addressed by following technical proposals:
Sewing machine can needle space changable mechanism, including driver, lever, crank, cloth pushing shaft, feeding crank, crank and work feed
One end of axis connects, and the other end of feeding crank and cloth pushing shaft connects, and one end of lever is connect with driver, and driver is equipped with
The movable part connecting with driver, driver are swung by movable part activation lever, and the other end of lever is connect with crank,
Lever drives crank-swinging, and crank-swinging drives cloth pushing shaft to swing.Driver task driven movable part is for linear motion, activity
Component drives lever swing, drives crank-swinging by lever, cloth pushing shaft is with lever rotation to certain position, to pass through work feed
Axis limits the amplitude of oscillation of feeding crank, and to achieve the purpose that change needle gage, this technology structure is simple, the vibration of machine is small, noise
Small and stable transmission.
Preferably, lever includes long lever and short lever, long lever and short lever form bending structure, long lever and short
Lever is an integral structure.Facilitate driver activation lever, realizes the transmission of lever and crank.
Preferably, further including driver rack, driver is located on driver rack, and the end of long lever is equipped with first
Connecting hole, driver rack are equipped with the reset spring that one end is connect with driver rack, the other end of reset spring and first
Connecting hole connection.When driver does not work, reset spring drives long lever to contact with movable part and reset movable part,
So that short lever is separated with crank, avoid can the increase influence of needle space changable mechanism normally sew or backstitch.
Preferably, crank includes lantern ring and interconnecting piece, interconnecting piece is vertically located on lantern ring and is integral type knot with lantern ring
Structure offers vertically arranged limiting slot on interconnecting piece, and when driver works, the end of short lever is located in limiting slot.Limit
Slot is used to limit the motion profile of short lever, guarantees the stability of lever motion.
Preferably, further including cutter driving axis, the second connecting hole, cutter driving axis and second are offered in the middle part of lever
Connecting hole connects and through the second connecting hole, and lever is swung around cutter driving axis.Cutter driving axis is that the swing of lever mentions
For fulcrum, the stability of lever swing is improved.
Preferably, driver is linear drive apparatus.
A kind of sewing machine, including above-described sewing machine can needle space changable mechanism.
The utility model is due to using above technical scheme, and have significant technical effect: driver task driven is living
Dynamic component is for linear motion, and movable part drives lever swing, drives crank-swinging by lever, cloth pushing shaft with lever swing extremely
Certain position, to achieve the purpose that change needle gage, facilitates needle gage to limit the amplitude of oscillation of feeding crank by cloth pushing shaft
It adjusts, this technology structure is simple, the vibration of machine is small, noise is small and stable transmission.
Detailed description of the invention
Fig. 1 is the structure chart that the utility model is mounted on bottom plate.
Structure chart when Fig. 2 is utility model works.
Side view when Fig. 3 is utility model works.
Fig. 4 is structure chart of the utility model maximum needle gage along seam.
Fig. 5 is side view of the utility model maximum needle gage along seam.
Fig. 6 is the structure chart that the utility model maximum needle gage backstitches.
Fig. 7 is the side view that the utility model maximum needle gage backstitches.
Fig. 8 is the structure chart of driver rack.
Fig. 9 is the structure chart of lever.
Figure 10 is the structure chart of crank.
The toponym that each number designation is referred in attached drawing is as follows: 1-bottom plate, 2-movable parts, 3-drivers,
4-driver racks, 5-reset springs, 6-levers, 7-cranks, 8-cloth pushing shafts, 9-cutter driving axis, 10-feedings are bent
Handle, 41-bracket connecting holes, 61-long levers, 62-short levers, the 63-the first connecting hole, the 64-the second connecting hole, 71-sets
Ring, 72-interconnecting pieces, 73-limiting slots.
Specific embodiment
The utility model is described in further detail with embodiment with reference to the accompanying drawing.
Embodiment 1
Sewing machine can needle space changable mechanism, including bottom plate 1, as shown in Figures 1 to 10, including the driving being located on bottom plate 1
Device 3, lever 6, crank 7, cloth pushing shaft 8, feeding crank 10, crank 7 are connect with one end of cloth pushing shaft 8, feeding crank 10 and work feed
The other end of axis 8 connects, and one end of lever 6 is connect with driver 3, and driver 3 is equipped with the movable part connecting with driver 3
2, driver 3 is swung by 2 activation lever 6 of movable part, and the other end of lever 6 is connect with crank 7, and lever 6 drives crank 7 to put
Dynamic, crank 7, which is swung, drives cloth pushing shaft 8 to swing, and cloth pushing shaft 8 is connect with bottom plate 1, and driver 3 is linear drive apparatus.Driver 3
Task driven movable part 2 is for linear motion, and movable part 2 drives lever 6 to swing, and drives crank 7 to swing by lever 6, work feed
Axis 8 turns to certain position with lever 6, so that the amplitude of oscillation of feeding crank 10 is limited by cloth pushing shaft 8, to reach change needle
Away from purpose, this technology structure is simple, the vibration of machine is small, noise is small and stable transmission.
Lever 6 includes long lever 61 and short lever 62, and long lever 61 and short lever 62 form bending structure, 61 He of long lever
Short lever 62 is an integral structure.Facilitate 3 activation lever 6 of driver, realizes the transmission of lever 6 and crank 7.
It further include driver rack 4, driving arm 4 is connect with bottom plate 1, and driver rack 4 is equipped with bracket connecting hole 41,
Driver 3 is located on driver rack 4, and the end of long lever 61 is equipped with the first connecting hole 63, and driver rack 4 is equipped with one end
The reset spring 5 connecting with driver rack 4, reset spring 5 are connect with bracket connecting hole 41, the other end of reset spring 5 with
The connection of first connecting hole 63.When driver 3 does not work, reset spring 5 drives long lever 61 to contact with movable part 2 and make to live
Dynamic component 2 resets so that short lever 62 is separated with crank 7, avoid can needle space changable mechanism increase influence normally to sew or
It backstitches, the end of short lever 62 is circular arc, and the sliding between short lever 62 and limiting slot 71 can be made more smooth；Long lever 61 is used
In the interaction with movable part 2.
Crank 7 includes lantern ring 71 and interconnecting piece 72, and interconnecting piece 72 is vertically located on lantern ring 71 and is integral type with lantern ring 71
Structure offers vertically arranged limiting slot 73 on interconnecting piece 72, and when driver 3 works, the end of short lever 62 is located at limit
In slot 73.Limiting slot 73 is used to limit the motion profile of short lever 62, guarantees the stability that lever 6 moves.
It further include cutter driving axis 9, cutter driving axis 9 is connect with bottom plate 1, and the middle part of lever 6 offers the second connecting hole
64, cutter driving axis 9 connect with the second connecting hole 64 and through the second connecting hole 64, and lever 6 is put around cutter driving axis 9
It is dynamic.Cutter driving axis 9 provides fulcrum for the swing of lever 6, improves the stability that lever 6 is swung.
A kind of sewing machine, including above-described sewing machine can needle space changable mechanism.
When in maximum needle gage along seam, driver 3 does not work at this time, due to the effect of reset spring 5, the length of lever 6
Lever 61 contacts with movable part 2 and makes its reset, so that the limiting slot 71 of short lever 61 and crank 7 is not in contact with that is,
Can the increase of needle space changable mechanism will not influence normal sewing.
When backstitching in maximum needle gage, driver 3 does not work at this time, due to the effect of reset spring 5, the length of lever 6
Lever 61 contacts with movable part 2 and makes its reset, so that the limiting slot 71 of short lever 61 and crank 7 is not in contact with that is,
Can the increase of needle space changable mechanism will not influence and backstitch.
Mechanism, which is able to achieve, pre-sets different needle gages, and to cope with different behaviours in service, specific setting method is such as
Under:
A. adjust machine needle first away to required needle gage (by the needle gage being changed to when mechanism work)；
B. movable part 2 is secondly made to be in operating position (maximum stroke)；
C. rotary machine handwheel makes feeding crank 10 be rocked to the extreme position for being most biased to lever 6, by the limit of crank 7
Slot 71 abuts the short lever 62 of lever 6, and long lever 61 abuts movable part (2), makes gapless between three, lock crank at this time
7 fastening screw.
After completing step A, B and C, it can be completed and mechanism is pre-seted.
Mechanism can obtain different changeable needle gages by preparatory setting, to adapt to different sewing cloths, sewing side
The differing needles that the multi-party reason such as method generates are away from demand.
In short, the above is only the preferred embodiment of the present invention, it is all according to present utility model application the scope of the patents institute
The equivalent changes and modifications of work should all belong to the covering scope of the utility model patent.
Claims (7)
1. sewing machine can needle space changable mechanism, it is characterised in that: including driver (3), lever (6), crank (7), cloth pushing shaft
(8), feeding crank (10), crank (7) are connect with one end of cloth pushing shaft (8), the other end of feeding crank (10) and cloth pushing shaft (8)
Connection, one end of lever (6) are connect with driver (3), and driver (3) is equipped with the movable part connecting with driver (3)
(2), driver (3) is swung by movable part (2) activation lever (6), and the other end of lever (6) is connect with crank (7), lever
(6) driving crank (7) is swung, and crank (7), which is swung, drives cloth pushing shaft (8) to swing.
2. sewing machine according to claim 1 can needle space changable mechanism, it is characterised in that: lever (6) includes long lever
(61) and short lever (62), long lever (61) and short lever (62) form bending structure, and long lever (61) and short lever (62) are
Integral structure.
3. sewing machine according to claim 2 can needle space changable mechanism, it is characterised in that: further include driver rack (4),
Driver (3) is located on driver rack (4), and the end of long lever (61) is equipped with the first connecting hole (63), driver rack (4)
It is equipped with the reset spring (5) that one end is connect with driver rack (4), the other end and the first connecting hole of reset spring (5)
(63) it connects.
4. sewing machine according to claim 2 can needle space changable mechanism, it is characterised in that: crank (7) includes lantern ring (71)
With interconnecting piece (72), interconnecting piece (72) is vertically located on lantern ring (71) and is an integral structure with lantern ring (71), interconnecting piece (72)
On offer vertically arranged limiting slot (73), driver (3) work when, the end of short lever (62) is located at limiting slot (73)
It is interior.
5. sewing machine according to claim 1 can needle space changable mechanism, it is characterised in that: further include cutter driving axis (9),
It is offered in the middle part of lever (6) the second connecting hole (64), cutter driving axis (9) connect with the second connecting hole (64) and through
Two connecting holes (64), lever (6) are swung around cutter driving axis (9).
6. sewing machine according to claim 1 can needle space changable mechanism, it is characterised in that: driver (3) is linear drives
Device.
7. a kind of sewing machine, it is characterised in that: including sewing machine as claimed in any one of claims 1 to 6 can needle space changable mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820680630.1U CN208293216U (en) | 2018-05-08 | 2018-05-08 | A kind of sewing machine and its can needle space changable mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820680630.1U CN208293216U (en) | 2018-05-08 | 2018-05-08 | A kind of sewing machine and its can needle space changable mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208293216U true CN208293216U (en) | 2018-12-28 |
Family
ID=64703390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820680630.1U Expired - Fee Related CN208293216U (en) | 2018-05-08 | 2018-05-08 | A kind of sewing machine and its can needle space changable mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208293216U (en) |
-
2018
- 2018-05-08 CN CN201820680630.1U patent/CN208293216U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181228 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |