CN210506744U - Differential adjusting mechanism for presser foot of sewing machine - Google Patents
Differential adjusting mechanism for presser foot of sewing machine Download PDFInfo
- Publication number
- CN210506744U CN210506744U CN201920850396.7U CN201920850396U CN210506744U CN 210506744 U CN210506744 U CN 210506744U CN 201920850396 U CN201920850396 U CN 201920850396U CN 210506744 U CN210506744 U CN 210506744U
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- differential
- crank
- sewing machine
- shaft
- presser foot
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Abstract
The utility model relates to a differential adjusting mechanism for a presser foot of a sewing machine, which relates to a sewing machine, belongs to the technical field of mechanical equipment, which comprises an upper shaft, a differential adjusting shaft and a differential feeding shaft which are rotatably arranged in a casing, wherein a servo stepping motor is arranged on the outer side of the casing, the servo stepping motor is linked with the differential adjusting shaft through a connecting rod device, the differential adjusting shaft is respectively linked with the upper shaft and the differential feeding shaft through a differential feeding swinging device, the connecting rod device comprises a connecting rod, a crank I and a crank II, wherein two ends of the crank I are respectively connected with the connecting rod and a rotating shaft on the servo stepping motor, connecting rod and differential regulating spindle are connected respectively to the both ends of crank II, the utility model aims at providing a simple structure, occupation space is less, and differential regulation is stable, make simple, use cost is lower be used for the differential adjustment mechanism of sewing machine presser foot.
Description
Technical Field
The utility model belongs to the technical field of mechanical equipment, a sewing machine is related to, refer in particular to a differential adjustment mechanism for sewing machine presser foot.
Background
The existing sewing machine has the working principle that a needle rod drives a lead to penetrate through a curved needle which is arranged at the bottom of a textile and is penetrated with a winding under the driving of a driving device, so that the lead and the winding are interwoven together to realize sewing. In view of the special working principle of the existing sewing machine, the sewing machine has the advantages of high sewing speed, good sewing quality, convenient operation and the like, is popular with people, and is widely applied to the fields of clothing, home furnishing and the like.
The existing sewing machine generally comprises a needle bar material-needling and thread-jumping mechanism, a differential adjusting mechanism, a cloth feeding mechanism, a looper thread-hooking mechanism and the like. The differential adjusting mechanism is a mechanism for adjusting to complete the cloth feeding function and adapt to various elastic fabrics, overcomes the deformation of the upper layer and the lower layer of sewing materials due to the sliding extension or shortening by mainly adjusting the feeding speed and the feeding distance of the front feeding tooth and the rear feeding tooth, and is particularly suitable for the sewing of various sliding and elastic sewing materials.
The differential adjusting part and the main feeding adjusting part of the sewing machine on the market at present usually drive a main shaft to rotate through a motor, and the main shaft is linked through a series of cranks and connecting rods, and the differential adjusting part and the main feeding adjusting part are also linked through linkage, so the sewing machine has the technical problems of complex structure, large occupied space, large linkage load, high energy consumption of power control parts such as the motor and the like, high overall manufacturing and using cost and the like.
Disclosure of Invention
The utility model aims at providing a simple structure, occupation space is less, and differential regulation is stable, make simple, use cost is lower differential adjustment mechanism for sewing machine presser foot.
The purpose of the utility model is realized like this:
a differential adjusting mechanism for a presser foot of a sewing machine comprises an upper shaft, a differential adjusting shaft and a differential feeding shaft which are rotatably arranged in a machine shell, wherein a servo stepping motor is arranged on the outer side of the machine shell and is linked with the differential adjusting shaft through a connecting rod device, and the differential adjusting shaft is respectively linked with the upper shaft and the differential feeding shaft through a differential feeding swinging device.
In the differential adjusting mechanism for the presser foot of the sewing machine, the connecting rod device comprises a connecting rod, a crank I and a crank II, two ends of the crank I are respectively connected with the connecting rod and a rotating shaft on the servo stepping motor, and two ends of the crank II are respectively connected with the connecting rod and the differential adjusting shaft.
In the differential adjusting mechanism for the presser foot of the sewing machine, the two end parts of the connecting rod are respectively provided with the connecting hole I, the crank I and the crank II are provided with the connecting holes II corresponding to the connecting holes I, and the connecting piece penetrates through the connecting holes I and the connecting holes II to connect the connecting rod, the crank I and the crank II together.
In the differential adjusting mechanism for the presser foot of the sewing machine, the crank I and the crank II are provided with the jacking holes, the jacking holes are arranged on one sides of the connecting holes II and communicated with the connecting holes II, and the jacking pieces are arranged in the jacking holes.
In the differential adjusting mechanism for the sewing machine presser foot, the connection mode between the jacking hole and the jacking piece is threaded connection.
In the differential adjusting mechanism for the presser foot of the sewing machine, the crank I is provided with a fixing hole I fixedly connected with a rotating shaft on the servo stepping motor, and the crank II is provided with a fixing hole II fixedly connected with the differential adjusting shaft.
In the differential adjusting mechanism for the presser foot of the sewing machine, the lower end parts of the crank I and the crank II are respectively provided with a through groove, each through groove is respectively cut into the fixing hole I and the fixing hole II, the crank I and the crank II are respectively provided with a clamping hole, the clamping hole penetrates through the through grooves, and a clamping piece is arranged in the clamping hole.
In the above differential adjusting mechanism for the presser foot of the sewing machine, the differential adjusting shaft is provided with a check ring for limiting the movement of the differential adjusting shaft.
Compared with the prior art, the utility model outstanding and profitable technological effect is:
the utility model discloses an external servo step motor and link means are connected with the differential regulating spindle, and the differential regulating spindle is through differential pay-off pendulous device upper shaft respectively and the linkage of differential pay-off axle, replaces complicated crank and link mechanism to be connected with the feeding mechanism in the sewing machine, can reduce sewing machine's occupation space like this, overall structure is simple to it is comparatively convenient to operate and use, and differential regulation is stable, reliable, low in manufacturing cost.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a partial enlarged view of the utility model at A;
FIG. 3 is a partial enlarged view of the position B of the present invention
The reference numerals in the figures denote the meanings:
2, upper shaft; 3-a differential adjustment shaft; 4-differential feed shaft; 5-servo stepping motor; 6-connecting rod device
7-a retainer ring; 61-a connecting rod; 62-crank I; 63-crank II; 64-through grooves; 65-clamping holes;
611-connecting hole I; 612-connecting hole II; 613-jacking holes; 621-fixing hole I;
631-fixation hole ii;
Detailed Description
The invention will be further described with reference to specific embodiments below:
as shown in fig. 1-3: a differential adjusting mechanism for a presser foot of a sewing machine comprises an upper shaft 2, a differential adjusting shaft 3 and a differential feeding shaft 4 which are rotatably arranged in a machine shell, a servo stepping motor 5 is arranged on the outer side of the shell, the servo stepping motor 5 is linked with the differential adjusting shaft 3 through a connecting rod device 6, the differential adjusting shaft 3 is respectively linked with the upper shaft 2 and the differential feeding shaft 4 through a differential feeding swinging device, the utility model is connected with the differential adjusting shaft through an external servo stepping motor and a connecting rod device, the differential adjusting shaft is respectively linked with the upper shaft and the differential feeding shaft through the differential feeding swinging device to replace a complex crank and a connecting rod mechanism to be connected with a feeding mechanism in the sewing machine, the sewing machine has the advantages of reducing the occupied space inside the sewing machine, along with simple overall structure, convenient operation and use, stable and reliable differential adjustment and low manufacturing cost.
In the above differential adjustment mechanism for the presser foot of the sewing machine, the link device 6 includes a link 61, a crank i 62 and a crank ii 63, two ends of the crank i 62 are respectively connected to the link 61 and a rotation shaft on the servo stepping motor 5, two ends of the crank ii 63 are respectively connected to the link 61 and the differential adjustment shaft 3, two ends of the link 61 are respectively provided with a connection hole i 611, the crank i 62 and the crank ii 63 are provided with a connection hole ii 612 corresponding to the connection hole i 611, a connection member passes through the connection hole i 611 and the connection hole ii 612 to connect the link 61, the crank i 62 and the crank ii 63 together, the connection hole i and the connection hole ii are adapted to the connection member, and the connection member is a pin shaft, so as to ensure stable and reliable differential adjustment.
In the above differential adjusting mechanism for the presser foot of the sewing machine, the crank i 62 and the crank ii 63 are provided with the jacking hole 613, the jacking hole 613 is arranged on one side of the connecting hole ii 612, the jacking hole 613 is communicated with the connecting hole ii 612, the jacking member is arranged in the jacking hole 613, the connection mode between the jacking hole 613 and the jacking member is threaded, the jacking member is a screw, and when the connection is performed, the screw is screwed into the jacking hole to be connected with the connecting member, so that the connecting member cannot be separated from the connecting hole.
In the differential adjusting mechanism for the presser foot of the sewing machine, a fixing hole I621 fixedly connected with a rotating shaft on the servo stepping motor 5 is arranged on the crank I62, a fixing hole II 631 fixedly connected with the differential adjusting shaft 3 is arranged on the crank II 63, the lower end parts of the crank I62 and the crank II 63 are respectively provided with a through groove 64, each through groove 64 is respectively cut into the fixing hole I621 and the fixing hole II 631, the crank I62 and the crank II 63 are respectively provided with a clamping hole 65, the clamping hole 65 penetrates through the through groove 64, a clamping part is arranged in the clamping hole 65, the designed clamping part is a bolt, the fixing hole I and the fixing hole II are reduced by screwing the bolt, so that the rotating shaft and the differential adjusting shaft on the servo stepping motor can be clamped, the transmission precision can be ensured, and the differential adjustment is stable and reliable.
In the differential adjusting mechanism for the presser foot of the sewing machine, the differential adjusting shaft 3 is provided with the retainer ring 7, the retainer ring 7 is used for limiting the movement of the differential adjusting shaft 3, the differential adjusting shaft is arranged in the machine shell, and the retainer ring is designed for preventing the differential adjusting shaft from being separated from the machine shell.
The above-mentioned embodiment is only the preferred embodiment of the present invention, and does not limit the protection scope of the present invention according to this, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (8)
1. A differential adjustment mechanism for a sewing machine presser foot, characterized by: the feeding mechanism comprises an upper shaft, a differential adjusting shaft and a differential feeding shaft which are rotatably arranged in a casing, wherein a servo stepping motor is arranged on the outer side of the casing, the servo stepping motor is linked with the differential adjusting shaft through a connecting rod device, and the differential adjusting shaft is respectively linked with the upper shaft and the differential feeding shaft through a differential feeding swinging device.
2. The differential adjustment mechanism for a presser foot of a sewing machine of claim 1, wherein: the connecting rod device comprises a connecting rod, a crank I and a crank II, wherein two ends of the crank I are respectively connected with the connecting rod and a rotating shaft on the servo stepping motor, and two ends of the crank II are respectively connected with the connecting rod and the differential adjusting shaft.
3. The differential adjustment mechanism for a presser foot of a sewing machine of claim 2, wherein: connecting holes I are respectively formed in the two end portions of the connecting rod, connecting holes II corresponding to the connecting holes I are formed in the crank I and the crank II, and the connecting piece penetrates through the connecting holes I and the connecting holes II to connect the connecting rod, the crank I and the crank II together.
4. The differential adjustment mechanism for a presser foot of a sewing machine of claim 3, wherein: be provided with the tight hole in top on crank I and the crank II, the tight hole in top is located one side setting of connecting hole II, just the tight hole in top is linked together with connecting hole II, be provided with the tight piece in top.
5. The differential adjustment mechanism for a presser foot of a sewing machine of claim 4, wherein: the tightening hole is connected with the tightening piece in a threaded manner.
6. The differential adjustment mechanism for a presser foot of a sewing machine of claim 5, wherein: the crank I is provided with a fixing hole I fixedly connected with a rotating shaft on the servo stepping motor, and the crank II is provided with a fixing hole II fixedly connected with the differential adjusting shaft.
7. The differential adjustment mechanism for a presser foot of a sewing machine of claim 6, wherein: the lower tip of crank I and crank II all is provided with logical groove, every lead to the groove and cut into in fixed orifices I and the fixed orifices II respectively, be provided with respectively on crank I and the crank II and press from both sides tight hole, press from both sides tight hole and run through lead to the groove, just press from both sides and be provided with the clamping piece in the tight hole.
8. The differential adjustment mechanism for a presser foot of a sewing machine of claim 1, wherein: and the differential adjusting shaft is provided with a check ring which is used for limiting the movement of the differential adjusting shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920850396.7U CN210506744U (en) | 2019-06-06 | 2019-06-06 | Differential adjusting mechanism for presser foot of sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920850396.7U CN210506744U (en) | 2019-06-06 | 2019-06-06 | Differential adjusting mechanism for presser foot of sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210506744U true CN210506744U (en) | 2020-05-12 |
Family
ID=70577818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920850396.7U Expired - Fee Related CN210506744U (en) | 2019-06-06 | 2019-06-06 | Differential adjusting mechanism for presser foot of sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210506744U (en) |
-
2019
- 2019-06-06 CN CN201920850396.7U patent/CN210506744U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200512 |