CN211897358U - Presser foot actuating mechanism is lifted in sewing machine's trimming - Google Patents
Presser foot actuating mechanism is lifted in sewing machine's trimming Download PDFInfo
- Publication number
- CN211897358U CN211897358U CN201922500569.5U CN201922500569U CN211897358U CN 211897358 U CN211897358 U CN 211897358U CN 201922500569 U CN201922500569 U CN 201922500569U CN 211897358 U CN211897358 U CN 211897358U
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- China
- Prior art keywords
- presser foot
- driving
- straight
- driving motor
- trimming
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- Expired - Fee Related
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- 238000009966 trimming Methods 0.000 title claims abstract description 56
- 238000009958 sewing Methods 0.000 title claims abstract description 26
- 230000005540 biological transmission Effects 0.000 claims abstract description 38
- 230000002093 peripheral effect Effects 0.000 claims description 14
- 238000005452 bending Methods 0.000 claims description 12
- 238000009434 installation Methods 0.000 claims description 11
- 239000003921 oil Substances 0.000 description 10
- 230000000875 corresponding effect Effects 0.000 description 8
- 238000000926 separation method Methods 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
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- Sewing Machines And Sewing (AREA)
Abstract
The utility model belongs to the technical field of the sewing machine, refer in particular to a presser foot actuating mechanism is lifted to trimming of sewing machine, which comprises a housing, be provided with on the casing and move the cutter arbor and lift the presser foot ejector pin, be provided with the driving motor of output shaft along horizontal setting on the casing, be provided with the drive straight-teeth gear on driving motor's the output shaft, be connected with the trimming straight-teeth gear through the meshing of drive straight-teeth gear on one of them output shaft of driving motor, the fixed suit of trimming straight-teeth gear is on moving the cutter arbor, be connected with through the meshing of drive straight-teeth gear and lift the presser foot straight-teeth gear on another output shaft of driving motor, it lifts the presser foot straight-teeth gear fixed suit and is epaxial under lifting the presser. The utility model discloses with driving motor's output shaft along horizontal setting, effectively improve driving motor's space utilization in the sewing machine casing, simultaneously, drive straight-teeth gear and trimming straight-teeth gear and lift presser foot straight-teeth gear drive cooperation for the transmission can be reliable and stable.
Description
The technical field is as follows:
the utility model belongs to the technical field of sewing machine, refer in particular to a presser foot actuating mechanism is lifted to sewing machine's trimming.
Background art:
the sewing machine and the automatic thread trimming and presser foot lifting mechanism thereof disclosed in the prior Chinese utility model patent (patent publication No. CN209456688U) comprise a thread trimming mechanism and a presser foot lifting mechanism which are arranged on a casing, a driving motor is arranged on the casing, a driving bevel gear is arranged on an output shaft of the driving motor, one part of the outer peripheral surface of the driving bevel gear is provided with teeth, the other part of the outer peripheral surface is a smooth surface, a moving knife shaft for driving the thread trimming mechanism to perform thread trimming action is provided with a thread trimming bevel gear, a presser foot lifting bevel gear is arranged on a lower shaft of the presser foot lifting mechanism for driving the presser foot lifting action, and both the thread trimming bevel gear and the presser foot lifting bevel gear can be meshed with the teeth of the driving bevel gear. The structure cooperation determines that the output shaft of the driving motor needs to be vertically arranged in the shell, so that the limited space in the shell of the existing sewing machine cannot be fully utilized, and the shell volume of the sewing machine is enlarged; meanwhile, the trimming bevel gear, the pressure foot lifting bevel gear and the driving bevel gear are in transmission fit, so that the axial force applied to the output shaft of the driving motor is large, the output shaft is easy to bend and deform, and the transmission precision and efficiency are affected.
The invention content is as follows:
the utility model aims at providing a presser foot actuating mechanism is lifted to trimming of sewing machine that space utilization is high, driving motor's output shaft atress is little, the transmission is reliable and stable.
The utility model discloses a realize like this:
a thread trimming and presser foot lifting driving mechanism of a sewing machine comprises a machine shell, wherein a movable cutter shaft and a presser foot lifting ejector rod are arranged on the machine shell, the movable cutter shaft is used for driving the thread trimming mechanism to perform thread trimming action, the presser foot lifting ejector rod is used for driving the presser foot lifting mechanism to perform presser foot lifting action, a driving motor is arranged on the machine shell in a transverse direction, a driving straight gear is arranged on an output shaft of the driving motor, one part of the outer peripheral surface of the driving straight gear is provided with driving straight teeth, the other part of the outer peripheral surface of the driving straight gear is a smooth surface I, the driving straight gear is connected with a transmission straight gear through the meshing of the driving straight teeth, and; or the transmission straight gear is fixedly sleeved on the lower shaft of the pressure foot;
or the driving motor is provided with two output shafts, one output shaft of the driving motor is connected with a trimming straight gear through the meshing of driving straight teeth of the driving straight gear, the trimming straight gear is fixedly sleeved on the movable cutter shaft, the other output shaft of the driving motor is connected with a presser foot lifting straight gear through the meshing of the driving straight teeth of the driving straight gear, the presser foot lifting straight gear is fixedly sleeved on a presser foot lifting lower shaft, and the presser foot lifting lower shaft is in transmission connection with a presser foot lifting ejector rod through a swing connecting rod.
In the trimming and presser foot lifting driving mechanism of the sewing machine, the left side face or/and the right side face of the driving motor are/is fixedly connected with the machine shell through the installation bending plate, one end face of the installation bending plate is fixedly connected with the machine shell through the fastener, the other end face of the installation bending plate is fixedly connected with the corresponding side face of the driving motor through the fastener, the end face is provided with the through hole, and the output shaft of the driving motor penetrates through the through hole.
In the trimming and presser foot lifting driving mechanism of the sewing machine, one part of the outer peripheral surface of the transmission spur gear or the trimming spur gear or the presser foot lifting spur gear is provided with the transmission straight teeth, the other part of the outer peripheral surface is a smooth surface II, and the transmission straight teeth can be in meshing transmission with the driving straight teeth.
In the thread trimming and presser foot lifting driving mechanism of the sewing machine, the circumferential radian of the transmission straight tooth is larger than that of the driving straight tooth.
In the trimming presser foot lifting driving mechanism of the sewing machine, the bottom of the machine shell is hermetically matched with the oil tank cover, an oil cavity is formed between the oil tank cover and the machine shell, and one end of the lower shaft of the presser foot lifting transversely extends into the oil cavity and is in transmission connection with the presser foot lifting ejector rod through the swinging connecting rod.
In the thread trimming and presser foot lifting driving mechanism of the sewing machine, the casing or the driving motor is provided with the position switch for detecting the circumferential rotation position of the driving straight tooth, the position switch is electrically connected with the controller, and the controller controls the output shaft of the driving motor to rotate forwards or reversely.
Compared with the prior art, the utility model outstanding advantage is:
the utility model discloses with driving motor's output shaft along horizontal setting, compare prior art, effectively improve the space utilization of driving motor in the sewing machine casing, simultaneously, driving motor's output shaft carries out the transmission cooperation through drive straight-teeth gear and trimming straight-teeth gear and lift presser foot straight-teeth gear, and the output shaft of having avoided driving motor receives the axial force that adds for driving motor can be reliable and stable with trimming mechanism and lift the transmission of presser foot mechanism.
Description of the drawings:
FIG. 1 is a perspective view of the whole device of the present invention;
fig. 2 is a perspective view of the inorganic case of the present invention;
fig. 3 is a perspective view of the driving spur gear of the present invention;
FIG. 4 is a perspective view of the installation bending plate of the present invention;
fig. 5 is a perspective view of the thread trimming spur gear or the presser foot lifting spur gear of the present invention.
In the figure: 1. a housing; 2. a movable cutter shaft; 3. lifting a presser foot ejector rod; 4. a drive motor; 5. a driving spur gear; 6. driving straight teeth; 7. a first smooth surface; 8. a straight gear for trimming; 9. lifting a pressure foot straight gear; 10. lifting a lower shaft of the presser foot; 11. a swing link; 12. mounting a bending plate; 13. a through hole; 14. straight teeth are transmitted; 15. A second smooth surface; 16. a fuel tank cap.
The specific implementation mode is as follows:
the invention will now be further described with reference to specific embodiments, with reference to figures 1 to 5:
the first embodiment is as follows:
a trimming and presser foot lifting driving mechanism of a sewing machine comprises a machine shell 1, wherein a movable cutter shaft 2 used for driving the trimming mechanism to perform trimming action and a presser foot lifting ejector rod 3 used for driving the presser foot lifting mechanism to perform presser foot lifting action are arranged on the machine shell 1, a driving motor 4 with an output shaft transversely arranged is arranged on the machine shell 1, a driving straight gear 5 is arranged on the output shaft of the driving motor 4, one part of the outer peripheral surface of the driving straight gear 5 is provided with a driving straight tooth 6, and the other part of the outer peripheral surface is a smooth surface I7.
The driving motor 4 is provided with two output shafts, one output shaft of the driving motor 4 is connected with a trimming straight gear 8 through the meshing of driving straight teeth 6 of the driving straight gear 5, the trimming straight gear 8 is fixedly sleeved on the movable cutter shaft 2, the other output shaft of the driving motor 4 is connected with a presser foot lifting straight gear 9 through the meshing of the driving straight teeth 6 of the driving straight gear 5, the presser foot lifting straight gear 9 is fixedly sleeved on a presser foot lifting lower shaft 10, and the presser foot lifting lower shaft 10 is in transmission connection with the presser foot lifting ejector rod 3 through a swing connecting rod 11.
The utility model discloses with driving motor 4's output shaft along horizontal setting, compare prior art, effectively improve driving motor 4 space utilization in sewing machine shell 1 body, and simultaneously, driving motor 4's output shaft carries out the transmission cooperation through drive straight-teeth gear 5 and trimming straight-teeth gear 8 and lift presser foot straight-teeth gear 9, has avoided driving motor 4's output shaft to receive the axial force that adds for driving motor 4 can be reliable and stable with trimming mechanism and the transmission of lifting presser foot mechanism.
The working principle is as follows: when the thread trimming mechanism is required to perform thread trimming action, the output shaft of the driving motor 4 drives the driving spur gear 5 to rotate in the forward direction, at the moment, the thread trimming spur gear 8 is in meshing transmission with the driving spur teeth 6 of the corresponding driving spur gear 5, and the pressure foot lifting spur gear 9 is in meshing separation with the driving spur gear 5 of the corresponding driving spur gear 5, so that the thread trimming mechanism is driven; similarly, when the presser foot lifting mechanism is required to perform the presser foot lifting action, the output shaft of the driving motor 4 drives the driving spur gear 5 to reversely rotate, at the moment, the presser foot lifting spur gear 9 is in meshing transmission with the driving spur teeth 6 of the corresponding driving spur gear 5, and the thread trimming spur gear 8 is in meshing separation with the driving spur gear 5 of the corresponding driving spur gear 5, so that the presser foot lifting mechanism is driven.
Furthermore, the specific connection mode between the driving motor 4 and the casing 1 is as follows: the left side face or/and the right side face of the driving motor 4 are/is fixedly connected with the casing 1 through the installation bending plate 12, one end face of the installation bending plate 12 is fixedly connected with the casing 1 through a fastener, the other end face of the installation bending plate is fixedly connected with the corresponding side face of the driving motor 4 through a fastener, and a through hole 13 is formed in the end face, and an output shaft of the driving motor 4 penetrates through the through hole 13. In the present embodiment, two installation bending plates 12 are provided, and are respectively located on the left side surface and the right side surface of the driving motor 4.
In order to reduce the manufacturing cost of the components, one part of the outer peripheral surface of the trimming straight gear 8 or the lifting and pressing foot straight gear 9 is provided with a transmission straight tooth 14, the other part of the outer peripheral surface is a smooth surface II 15, and the transmission straight tooth 14 can be meshed with the driving straight tooth 6 for transmission.
Moreover, in order to avoid that the corresponding transmission straight teeth 14 and the driving straight teeth 6 are separated in the transmission meshing process when the thread trimming mechanism or the presser foot lifting mechanism performs corresponding actions, so that the thread trimming mechanism or the presser foot lifting mechanism cannot be reset, the circumferential radian of the transmission straight teeth 14 should be larger than that of the driving straight teeth 6.
Furthermore, in the present embodiment, the bottom of the housing 1 is hermetically fitted with the oil tank cover 16, and an oil cavity is formed between the oil tank cover 16 and the housing 1, so as to avoid leakage of engine oil in the oil cavity due to the position arrangement of the presser foot lifting mechanism, one end of the presser foot lifting lower shaft 10 transversely extends into the oil cavity and is in transmission connection with the presser foot lifting mandril 3 through the swing connecting rod 11, that is, the bottom end of the mandril of the presser foot lifting mechanism is located in the oil cavity.
And simultaneously, in order to further improve the utility model discloses an degree of automation, be provided with the position switch who is used for detecting 6 circumferential direction positions of drive straight-tooth on casing 1 or driving motor 4, position switch and controller electric connection are made forward or reverse rotation by controller control driving motor 4's output shaft.
Example two:
the structure of the present embodiment is basically the same as that of the above embodiment, and the main difference is: the driving straight gear 5 is connected with a driving straight gear through a driving straight tooth 6 in a meshing manner, and the driving straight gear is fixedly sleeved on the movable cutter shaft 2; namely, a power shaft for driving the thread cutting mechanism to cut thread and a driving motor 4 are in matched transmission with a driving straight gear 5 and a driving straight gear, and the presser foot lifting ejector rod 3 for driving the presser foot lifting mechanism to lift the presser foot can be driven by adopting other structures in the prior art.
Example three;
the structure of the present embodiment is basically the same as that of the above embodiment, and the main difference is: the driving straight gear 5 is connected with a driving straight gear through a driving straight tooth 6 in a meshing manner, the driving straight gear is fixedly sleeved on a lower shaft 10 of the pressure foot lifting, and the lower shaft 10 of the pressure foot lifting is in transmission connection with a pressure foot lifting ejector rod 3 through a swinging connecting rod 11. Namely, the drive motor 4 drives the lower presser foot lifting shaft 10 to rotate through the drive spur gear 5 and the transmission spur gear, and then drives the presser foot lifting mechanism to perform presser foot lifting action through the swinging connecting rod 11, and the power shaft driving the thread shearing mechanism to perform thread shearing action can be driven by adopting other prior art structures.
The above-mentioned embodiment is only one of the preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, so: all equivalent changes made according to the shape, structure and principle of the utility model are covered within the protection scope of the utility model.
Claims (6)
1. The utility model provides a presser foot actuating mechanism is lifted to sewing machine's trimming, is provided with on casing (1) and is used for driving trimming mechanism to make movable cutter arbor (2) of trimming action and is used for the drive to lift presser foot mechanism and does lift presser foot ejector pin (3) of lifting of presser foot action which characterized in that: the machine shell (1) is provided with a driving motor (4) with an output shaft arranged along the transverse direction, the output shaft of the driving motor (4) is provided with a driving straight gear (5), one part of the outer peripheral surface of the driving straight gear (5) is provided with a driving straight tooth (6), the other part of the outer peripheral surface of the driving straight gear is a smooth surface I (7), the driving straight gear (5) is connected with a driving straight gear in a meshing way through the driving straight tooth (6), and the driving straight gear is fixedly sleeved on the movable cutter shaft (2); or the transmission straight gear is fixedly sleeved on the presser foot lifting lower shaft (10);
or the driving motor (4) is provided with two output shafts, one output shaft of the driving motor (4) is connected with a trimming straight gear (8) through the meshing of the driving straight teeth (6) of the driving straight gear (5), the trimming straight gear (8) is fixedly sleeved on the movable cutter shaft (2), the other output shaft of the driving motor (4) is connected with a presser foot lifting straight gear (9) through the meshing of the driving straight teeth (6) of the driving straight gear (5), the presser foot lifting straight gear (9) is fixedly sleeved on a presser foot lifting lower shaft (10), and the presser foot lifting lower shaft (10) is in transmission connection with the presser foot lifting ejector rod (3) through the swing connecting rod (11).
2. The thread trimming and presser foot lifting drive mechanism of a sewing machine according to claim 1, characterized in that: the left side face or/and the right side face of the driving motor (4) are/is fixedly connected with the casing (1) through the installation bending plate (12), one end face of the installation bending plate (12) is fixedly connected with the casing (1) through a fastener, the other end face of the installation bending plate is fixedly connected with the corresponding side face of the driving motor (4) through a fastener, and a through hole (13) is formed in the end face, and an output shaft of the driving motor (4) penetrates through the through hole (13).
3. The thread trimming and presser foot lifting drive mechanism of a sewing machine according to claim 1, characterized in that: one part of the outer peripheral surface of the transmission straight gear or the trimming straight gear (8) or the pressure foot lifting straight gear (9) is provided with transmission straight teeth (14), the other part of the outer peripheral surface is a smooth surface II (15), and the transmission straight teeth (14) can be in meshing transmission with the driving straight teeth (6).
4. The thread trimming and presser foot lifting drive mechanism of a sewing machine according to claim 3, characterized in that: the circumferential radian of the transmission straight tooth (14) is larger than that of the driving straight tooth (6).
5. The thread trimming and presser foot lifting drive mechanism of a sewing machine according to claim 1, characterized in that: the bottom of casing (1) is sealed to be cooperated with oil tank cap (16), and forms the oil pocket between oil tank cap (16) and casing (1), lift presser foot one end of axle (10) down and transversely stretch into the oil pocket, and it is connected with lift presser foot ejector pin (3) transmission through swing connecting rod (11).
6. The thread trimming and presser foot lifting drive mechanism of a sewing machine according to claim 1, characterized in that: the shell (1) or the driving motor (4) is provided with a position switch for detecting the circumferential rotation position of the driving straight teeth (6), the position switch is electrically connected with the controller, and the controller controls the output shaft of the driving motor (4) to rotate forwards or backwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922500569.5U CN211897358U (en) | 2019-12-31 | 2019-12-31 | Presser foot actuating mechanism is lifted in sewing machine's trimming |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922500569.5U CN211897358U (en) | 2019-12-31 | 2019-12-31 | Presser foot actuating mechanism is lifted in sewing machine's trimming |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211897358U true CN211897358U (en) | 2020-11-10 |
Family
ID=73297148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922500569.5U Expired - Fee Related CN211897358U (en) | 2019-12-31 | 2019-12-31 | Presser foot actuating mechanism is lifted in sewing machine's trimming |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211897358U (en) |
-
2019
- 2019-12-31 CN CN201922500569.5U patent/CN211897358U/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: 20201110 |