CN215628626U - Sewing machine lifts presser foot, trimming, trinity mechanism of pine line and sewing machine - Google Patents
Sewing machine lifts presser foot, trimming, trinity mechanism of pine line and sewing machine Download PDFInfo
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- CN215628626U CN215628626U CN202122161539.3U CN202122161539U CN215628626U CN 215628626 U CN215628626 U CN 215628626U CN 202122161539 U CN202122161539 U CN 202122161539U CN 215628626 U CN215628626 U CN 215628626U
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- presser foot
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- connecting rod
- trimming
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- 238000009966 trimming Methods 0.000 title claims abstract description 58
- 238000009958 sewing Methods 0.000 title claims abstract description 23
- 235000008331 Pinus X rigitaeda Nutrition 0.000 title description 3
- 235000011613 Pinus brutia Nutrition 0.000 title description 3
- 241000018646 Pinus brutia Species 0.000 title description 3
- 230000003578 releasing effect Effects 0.000 claims description 54
- 239000002699 waste material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model discloses a three-in-one mechanism for lifting presser feet, trimming threads and loosening threads of a sewing machine, which comprises a stepping motor, wherein an output shaft of the stepping motor is connected with a main driving slide block, the right side of the main driving slide block is provided with a presser foot lifting driving slide block, and the left side of the main driving slide block is provided with a thread trimming and loosening driving slide block; the upper surface of the presser foot lifting driving slide block is connected with a presser foot connecting rod assembly of which one end is fixed with the presser foot shaft; the upper surface of the trimming loose wire driving slide block is connected with a loose wire connecting rod assembly of which one end is fixed with the loose wire shaft and the other end is connected with a trimming knife connecting rod; the stepping motor is in positive rotation and is suitable for driving the main driving sliding block to translate rightwards, so that the presser foot lifting driving sliding block translates rightwards, and the presser foot connecting rod assembly drives the presser foot shaft to rotate; the stepping motor is reversely rotated to drive the main driving slide block to translate leftwards, so that the thread trimming loose wire driving slide block translates leftwards, the thread loosening connecting rod assembly drives the thread loosening shaft to rotate, and meanwhile, the thread trimming cutter connecting rod is driven by the thread loosening connecting rod assembly to move leftwards. The utility model can realize three actions of lifting the presser foot, trimming and loosening the thread by one motor.
Description
Technical Field
The utility model relates to a sewing machine and a three-in-one mechanism for lifting a presser foot, cutting a thread and loosening the thread.
Background
The existing industrial sewing machine is driven by a plurality of power sources respectively by a presser foot lifting, thread cutting and thread loosening mechanism, so that the waste is serious, the waste is not economical, the structure is complex, the installation and the use are not facilitated, and the production efficiency is influenced.
Disclosure of Invention
The utility model aims to provide a three-in-one mechanism for presser foot lifting, thread cutting and thread loosening of a sewing machine, which comprises a stepping motor, wherein an output shaft of the stepping motor is connected with a main driving slide block through a driving connecting rod assembly with a rotating structure, the right side of the main driving slide block is provided with a presser foot lifting driving slide block, the left side of the main driving slide block is provided with a thread cutting and thread loosening driving slide block, and the three slide blocks are suitable for sliding back and forth along a dovetail sliding groove; the upper surface of the presser foot lifting driving slide block is connected with a presser foot connecting rod assembly with a rotating structure, and one end of the presser foot connecting rod assembly is fixed with a presser foot shaft; the upper surface of the trimming loose wire driving sliding block is connected with a loose wire connecting rod assembly with a rotating structure, one end of the loose wire connecting rod assembly is fixed with a loose wire shaft, and the other end of the loose wire connecting rod assembly is rotatably connected with a trimming knife connecting rod; the stepping motor is in forward rotation and is suitable for driving the main driving sliding block to translate rightwards through the driving connecting rod assembly, the main driving sliding block pushes the presser foot lifting driving sliding block to translate rightwards, and the presser foot lifting connecting rod assembly on the presser foot lifting driving sliding block drives the presser foot shaft to rotate so as to realize the action of presser foot lifting; the stepping motor is reversely rotated to drive the main driving slider to translate leftwards through the driving connecting rod assembly, the main driving slider pushes the trimming loose wire driving slider to translate leftwards, the loose wire connecting rod assembly on the trimming loose wire driving slider drives the loose wire shaft to rotate so as to realize the wire loosening action, and meanwhile, the loose wire connecting rod assembly drives the trimming knife connecting rod to move leftwards so as to realize the wire trimming action.
Further, the driving link assembly comprises a first driving link and a second driving link, one end of the second driving link is fixed on the output shaft of the stepping motor, the other end of the second driving link is rotatably connected to one end of the first driving link through a first shaft position screw, and the other end of the first driving link is connected to the upper surface of the main driving slider through a second shaft position screw.
Further, the presser foot link assembly comprises a first presser foot link and a second presser foot link, one end of the second presser foot link is fixed on the upper surface of the presser foot lifting driving slider, the other end of the second presser foot link is rotatably connected to one end of the first presser foot link through a third axis screw, and the other end of the first presser foot link is fixed with the presser foot shaft.
Furthermore, a first strip-shaped groove is formed in the second presser foot connecting rod, a second fixing hole is formed in the first presser foot connecting rod, the third axial screw penetrates through the first strip-shaped groove and the first fixing hole in sequence and then is fixedly connected with the first presser foot connecting rod, and the third axial screw is suitable for driving the first presser foot connecting rod to move up and down along the first strip-shaped groove.
Further, the thread releasing link assembly comprises a first thread releasing link and a second thread releasing link, one end of the second thread releasing link is fixed on the upper surface of the thread trimming thread releasing driving slider, the other end of the second thread releasing link is rotatably connected to one end of the first thread releasing link through a fourth shaft screw, and the other end of the first thread releasing link is fixed with the thread releasing shaft.
Furthermore, a thread trimming loosening return spring is fixed on the left side wall of the thread trimming loosening driving sliding block, and the other end of the thread trimming loosening return spring is fixed on the spring limiting block.
In a second aspect, the utility model provides a sewing machine, which comprises a presser foot lifting, thread cutting and thread loosening three-in-one mechanism of the sewing machine according to any one of the technical schemes of the first aspect.
Furthermore, a second strip-shaped groove is formed in the second thread releasing connecting rod, a second fixing hole is formed in the first thread releasing connecting rod, a fourth axial screw penetrates through the second strip-shaped groove and the second fixing hole in sequence and then is fixedly connected with the first thread releasing connecting rod, and the fourth axial screw is suitable for driving the first thread releasing connecting rod to move up and down along the second strip-shaped groove.
Compared with the prior art, the utility model has the beneficial effects that:
can realize lifting presser foot, trimming and three kinds of actions of pine line through a motor, structural design is exquisite, and is easy and simple to handle, can improve sewing machine's work efficiency by a wide margin to can effectively reduce equipment cost.
Drawings
FIG. 1 is a schematic block diagram of one embodiment of the present invention;
fig. 2 is a partial enlarged view of one embodiment of the present invention.
In the figure, a presser foot shaft 1, a thread loosening shaft 2, a first thread loosening connecting rod 3, a first presser foot connecting rod 4, a second thread loosening connecting rod 5, a second presser foot connecting rod 6, a first driving connecting rod 7, a second driving connecting rod 8, a motor mounting bracket 9, a stepping motor 10, a thread trimmer connecting rod 11, a presser foot lifting driving slider 12, a main driving slider 13, a dovetail sliding groove 14, a thread trimming loosening driving slider 15, a thread trimming loosening return spring 16 and a spring limiting block 17.
Detailed Description
The present invention will now be described in detail with reference to the accompanying drawings. In the following description, directional words such as "left", "right", etc. refer to the orientation shown in fig. 1 for convenience of description, and do not limit the present invention.
As shown in fig. 1-2, an embodiment of a three-in-one mechanism for presser foot lifting, thread cutting and thread loosening of a sewing machine according to the present invention includes a stepping motor 10, an output shaft of the stepping motor 10 is connected to a main driving slider 13 through a driving link assembly having a rotating structure, a presser foot lifting driving slider 12 is disposed on the right side of the main driving slider 13, and a thread cutting and thread loosening driving slider 15 is disposed on the left side of the main driving slider 13, and the three sliders are all adapted to slide back and forth along a dovetail sliding groove 14; the upper surface of the presser foot lifting driving slide block 12 is connected with a presser foot connecting rod assembly with a rotating structure, and one end of the presser foot connecting rod assembly is fixed with the presser foot shaft 1; the upper surface of the trimming and thread-loosening driving slide block 15 is connected with a thread-loosening connecting rod assembly with a rotating structure, one end of the thread-loosening connecting rod assembly is fixed with the thread-loosening shaft 2, and the other end of the thread-loosening connecting rod assembly is rotatably connected with the thread-trimming cutter connecting rod 11; the stepping motor 10 is positively rotated to drive the main driving slide block 13 to translate rightwards through the driving connecting rod assembly, the main driving slide block 13 pushes the presser foot lifting driving slide block 12 to translate rightwards, and the presser foot connecting rod assembly on the presser foot lifting driving slide block 12 drives the presser foot shaft 1 to rotate so as to realize the presser foot lifting action. The stepping motor 10 is reversely rotated to drive the main driving slide block 13 to translate leftwards through the driving connecting rod assembly, the main driving slide block 13 pushes the thread trimming loose thread driving slide block 15 to translate leftwards and compress the thread trimming loose thread return spring 16, the thread trimming loose thread connecting rod assembly on the thread trimming loose thread driving slide block 15 drives the thread trimming shaft 2 to rotate to realize thread trimming action, and meanwhile, the thread trimming knife connecting rod 11 is driven by the thread trimming loose thread connecting rod assembly to move leftwards to realize thread trimming action. In this embodiment, the stepping motor 10 can rotate forward to lift the presser foot, and rotate backward to cut and loosen the thread, wherein the thread loosening and the thread cutting are performed synchronously, and the presser foot lifting and the thread loosening and the thread cutting do not interfere with each other. When the thread releasing shaft 2 rotates, a thread releasing mechanism (not shown in the figures) is driven to move to realize the thread releasing action, which belongs to the prior art and is not described in detail. Similarly, the presser foot lifting action is realized by driving the presser foot lifting mechanism to move through the rotation of the presser foot shaft 1, and the thread trimming action is realized by pulling the thread trimmer through the thread trimmer connecting rod 11, which belong to the prior art and are not described again.
In one embodiment, the driving link assembly includes a first driving link 7 and a second driving link 8, one end of the second driving link 8 is fixed on the output shaft of the stepping motor 10, the other end is rotatably connected to one end of the first driving link 7 by a first shaft position screw, and the other end of the first driving link 7 is connected to the upper surface of the main driving slider 13 by a second shaft position screw.
In one embodiment, the presser foot link assembly includes a first presser foot link 4 and a second presser foot link 6, one end of the second presser foot link 6 is fixed on the upper surface of the presser foot lifting driving slider 12, the other end is rotatably connected to one end of the first presser foot link 4 through a third axis screw, and the other end of the first presser foot link 4 is fixed with the presser foot shaft 1.
In one embodiment, the second presser foot link 6 has a first slot, the first presser foot link 4 has a second fixing hole, the third axial screw passes through the first slot and the first fixing hole in sequence and then is fixedly connected to the first presser foot link 4, and the third axial screw is adapted to drive the first presser foot link 4 to move up and down along the first slot. The presser foot shaft 1 and the first presser foot connecting rod 4 are fixed into a whole through the clamping groove and the screw, the horizontal position and the vertical position of the presser foot shaft 1 are both limited and cannot be changed, and only can be rotated, when the presser foot lifting driving slide block 12 drives the second presser foot connecting rod 6 to move rightwards, the third axial position screw can move upwards along the first linear groove, the lower part of the first presser foot connecting rod 4 fixed into a whole with the third axial position screw can swing rightwards along with the right movement of the second presser foot connecting rod 6, namely the first presser foot connecting rod 4 can incline, so that the presser foot shaft 1 can be driven to rotate by a certain angle to adapt to the inclination, and the presser foot lifting action is realized.
After the positive rotation of the stepping motor 10 is finished, the resetting is finished, the second driving connecting rod 8 is driven to reset, the second driving connecting rod 8 drives the first driving connecting rod 7 to reset, the first driving connecting rod 7 drives the main driving sliding block 13 to reset, the pressing foot component internal structure drives the pressing foot shaft 1 to reset, the pressing foot shaft 1 drives the first pressing foot connecting rod 4 to reset, the first pressing foot connecting rod 4 drives the second pressing foot connecting rod 6 to reset, and the second pressing foot connecting rod 6 drives the pressing foot driving sliding block 12 to reset. After the stepping motor 10 is reversed, the second driving connecting rod 8 is reset, the second driving connecting rod 8 drives the first driving connecting rod 7 to reset, the first driving connecting rod 7 drives the main driving sliding block 13 to reset, the trimming loose wire resetting spring 16 drives the trimming loose wire driving sliding block 15 to reset, the trimming loose wire driving sliding block 15 drives the second loose wire connecting rod 5 to reset, the second loose wire connecting rod 5 drives the first loose wire connecting rod 3 to reset, the first loose wire connecting rod 3 drives the loose wire shaft 2 to reset, the reset of the loose wire assembly is realized, meanwhile, the second loose wire connecting rod 5 drives the trimming knife connecting rod 11 to reset, and the trimming knife connecting rod 11 drives the trimming knife assembly to reset.
In one embodiment, the thread releasing link assembly includes a first thread releasing link 3 and a second thread releasing link 5, one end of the second thread releasing link 5 is fixed on the upper surface of the thread cutting thread releasing driving slider 15, the other end is rotatably connected to one end of the first thread releasing link 3 by a fourth axis screw, and the other end of the first thread releasing link 3 is fixed with the thread releasing shaft 2.
In one embodiment, a trimming and loosening return spring (16) is fixed on the left side wall of the trimming and loosening driving sliding block (15), and the other end of the trimming and loosening return spring (16) is fixed on a spring limiting block (17).
In one embodiment, the second thread releasing link 5 is provided with a second strip-shaped groove, the first thread releasing link 3 is provided with a second fixing hole, the fourth axial screw sequentially passes through the second strip-shaped groove and the second fixing hole and then is fixedly connected with the first thread releasing link 3, and the fourth axial screw is suitable for driving the first thread releasing link 3 to move up and down along the second strip-shaped groove. Because the first thread releasing connecting rod 3 and the thread releasing shaft 2 are fixed into a whole, and the horizontal position and the vertical position of the thread releasing shaft 2 are both limited and can not be changed, and can only rotate, when the thread trimming and releasing driving slide block 15 drives the second thread releasing connecting rod 5 to move leftwards, the fourth axial position screw can move upwards along the second strip-shaped groove, the lower part of the first thread releasing connecting rod 3 fixed into a whole with the fourth axial position screw can swing leftwards along with the left movement of the second thread releasing connecting rod 5, namely the first thread releasing connecting rod 3 can incline, so that the thread releasing shaft 2 can be driven to rotate by a certain angle to adapt to the inclination, and the thread releasing action is realized.
The sewing machine of the utility model has the advantages that the sewing machine pressure foot lifting, thread cutting and thread loosening three-in-one mechanism in any embodiment of the sewing machine pressure foot lifting, thread cutting and thread loosening three-in-one mechanism also has the advantages, and the details are not repeated.
The control software related to the utility model adopts the prior art.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations can be made by the worker in the light of the above teachings without departing from the spirit of the utility model. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (8)
1. A three-in-one mechanism for presser foot lifting, thread trimming and thread loosening of a sewing machine is characterized by comprising a stepping motor (10), wherein an output shaft of the stepping motor (10) is connected with a main driving slide block (13) through a driving connecting rod assembly with a rotating structure, the right side of the main driving slide block (13) is provided with a presser foot lifting driving slide block (12), the left side of the main driving slide block is provided with a thread trimming and thread loosening driving slide block (15), and the three slide blocks are suitable for sliding back and forth along a dovetail sliding groove (14); the upper surface of the presser foot lifting driving slide block (12) is connected with a presser foot connecting rod assembly with a rotating structure, and one end of the presser foot connecting rod assembly is fixed with a presser foot shaft (1); the upper surface of the trimming loose wire driving sliding block (15) is connected with a loose wire connecting rod assembly with a rotating structure, one end of the loose wire connecting rod assembly is fixed with the loose wire shaft (2), and the other end of the loose wire connecting rod assembly is rotatably connected with the trimming knife connecting rod (11); the stepping motor (10) is positively rotated to drive the main driving slide block (13) to translate rightwards through the driving connecting rod assembly, the main driving slide block (13) pushes the presser foot lifting driving slide block (12) to translate rightwards, and the presser foot connecting rod assembly on the presser foot lifting driving slide block (12) drives the presser foot shaft (1) to rotate to realize the presser foot lifting action; the stepping motor (10) is reversely rotated to drive the main driving slide block (13) to translate leftwards through the driving connecting rod assembly, the main driving slide block (13) pushes the trimming loose wire driving slide block (15) to translate leftwards, the loose wire connecting rod assembly on the trimming loose wire driving slide block (15) drives the loose wire shaft (2) to rotate to realize the action of loosing wire, and meanwhile, the loose wire connecting rod assembly drives the trimming knife connecting rod (11) to move leftwards to realize the action of trimming wire.
2. The three-in-one mechanism for presser foot lifting, thread trimming and thread loosening of a sewing machine as claimed in claim 1, wherein said driving link assembly comprises a first driving link (7) and a second driving link (8), one end of said second driving link (8) is fixed on the output shaft of said stepping motor (10), the other end is rotatably connected to one end of said first driving link (7) by a first axial screw, the other end of said first driving link (7) is connected to the upper surface of said main driving slider (13) by a second axial screw.
3. The presser foot lifting, thread trimming and thread releasing three-in-one mechanism of claim 1, wherein said presser foot link assembly comprises a first presser foot link (4) and a second presser foot link (6), one end of said second presser foot link (6) is fixed on the upper surface of said presser foot lifting driving slider (12), the other end is rotatably connected to one end of said first presser foot link (4) through a third axis screw, the other end of said first presser foot link (4) is fixed with said presser foot shaft (1).
4. The presser foot lifting, thread trimming and thread releasing three-in-one mechanism of a sewing machine as claimed in claim 3, wherein said second presser foot link (6) is provided with a first slot, said first presser foot link (4) is provided with a second fixing hole, said third axial screw passes through said first slot and said first fixing hole in sequence and then is fixedly connected with said first presser foot link (4), said third axial screw is adapted to drive said first presser foot link (4) to move up and down along said first slot.
5. The presser foot lifting, thread trimming and thread releasing three-in-one mechanism of a sewing machine as claimed in claim 1, wherein said thread releasing link assembly comprises a first thread releasing link (3) and a second thread releasing link (5), one end of said second thread releasing link (5) is fixed on the upper surface of said thread trimming and thread releasing driving slider (15), the other end is rotatably connected to one end of said first thread releasing link (3) through a fourth axis screw, and the other end of said first thread releasing link (3) is fixed with said thread releasing shaft (2).
6. The presser foot lifting, thread cutting and thread loosening mechanism of a sewing machine as claimed in claim 1, wherein a thread cutting and thread loosening return spring (16) is fixed on the left side wall of the thread cutting and thread loosening driving slider (15), and the other end of the thread cutting and thread loosening return spring (16) is fixed on a spring limiting block (17).
7. The presser foot lifting, thread trimming and thread releasing three-in-one mechanism of a sewing machine as claimed in claim 5, wherein a second strip-shaped groove is formed on the second thread releasing link (5), a second fixing hole is formed on the first thread releasing link (3), the fourth axial screw passes through the second strip-shaped groove and the second fixing hole in sequence and then is fixedly connected with the first thread releasing link (3), and the fourth axial screw is suitable for driving the first thread releasing link (3) to move up and down along the second strip-shaped groove.
8. A sewing machine, characterized in that, comprises the sewing machine of any claim 1-7 which lifts the presser foot, cuts off the thread, loosens the thread trinity mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122161539.3U CN215628626U (en) | 2021-09-08 | 2021-09-08 | Sewing machine lifts presser foot, trimming, trinity mechanism of pine line and sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122161539.3U CN215628626U (en) | 2021-09-08 | 2021-09-08 | Sewing machine lifts presser foot, trimming, trinity mechanism of pine line and sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215628626U true CN215628626U (en) | 2022-01-25 |
Family
ID=79912054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122161539.3U Active CN215628626U (en) | 2021-09-08 | 2021-09-08 | Sewing machine lifts presser foot, trimming, trinity mechanism of pine line and sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215628626U (en) |
-
2021
- 2021-09-08 CN CN202122161539.3U patent/CN215628626U/en active Active
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