CN108950895B - Quick change mechanism for presser foot of sewing machine and sewing machine - Google Patents
Quick change mechanism for presser foot of sewing machine and sewing machine Download PDFInfo
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- CN108950895B CN108950895B CN201710359381.6A CN201710359381A CN108950895B CN 108950895 B CN108950895 B CN 108950895B CN 201710359381 A CN201710359381 A CN 201710359381A CN 108950895 B CN108950895 B CN 108950895B
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- presser foot
- seat
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B29/00—Pressers; Presser feet
- D05B29/06—Presser feet
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B29/00—Pressers; Presser feet
- D05B29/12—Presser-foot attachment
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- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The invention belongs to the technical field of sewing equipment, in particular to a quick change mechanism of a presser foot of a sewing machine and the sewing machine; the left presser foot lifting frame and the right presser foot lifting frame are hinged to two side faces of the feeding frame respectively, a mounting frame which is integrated with the feeding frame is arranged at the front end of the feeding frame, two first lifting holes are formed in the mounting frame, guide plates made of hard materials are detachably connected to the front side face of the mounting frame, second lifting holes which are in one-to-one correspondence with the first lifting holes are formed in the guide plates, two vertical guide grooves are formed by vertical bosses arranged on the guide plates at the outer sides of the second lifting holes and cover plates connected to the guide plates, through holes are formed in the upper ends of the button sewing presser feet or the bar tacking presser feet, and the upper ends of the button sewing presser feet or the bar tacking presser feet extend into the two guide grooves respectively and are hung on the left presser foot lifting frame and the right presser foot lifting frame which extend into the guide grooves through the through holes; the bar tacking presser foot and the button sewing presser foot only need to disassemble and assemble the cover plate when in switching, and the switching is quick and convenient.
Description
Technical field:
the invention belongs to the technical field of sewing equipment, and particularly relates to a quick change mechanism for a presser foot of a sewing machine and the sewing machine.
The background technology is as follows:
the button sewing machine is used for binding buttons, and the hitching machine plays roles of sewing reinforcing joints at stress parts of clothes, reinforcing the hole tail of the round head and sewing and locking umbrella top circles. After binding buttons in the production process, a plurality of times of manual winding is needed behind the button neck by using a sewing thread so as to strengthen the firmness of the buttons, and the hitching machine can automatically operate the process, so that the working time is shortened, the production efficiency is improved, and the production intensity of workers is reduced. Because the hitching machine is less in use, and the button sewing machine and the hitching machine can be used in a switching way. The invention patent with publication number CN 103397479B discloses a switching structure of button sewing machine and hitching machine. The patent discloses that a loop adapter or a button sewing adapter is arranged at the front end of a supply frame, and correspondingly, a loop presser foot device is connected to the loop adapter or a button sewing presser foot device is connected to the button sewing adapter. The hitch coupler disclosed in this patent is not common. The feeding frame is connected with the feeding frame through screws respectively, the feeding frame is connected with the sleeve joint adapter and the button sewing adapter on the rear side face of the sleeve joint adapter and the button sewing adapter, the disassembly and the assembly are inconvenient, the contact area of the sleeve joint adapter and the button sewing adapter when being connected with the feeding frame is small, the connection firmness is poor, and the stability is poor.
The invention comprises the following steps:
the invention aims at the problems existing in the prior art, and provides a quick-change mechanism for a presser foot of a sewing machine and the sewing machine, which aims at solving the technical problems that: how to simply, conveniently and rapidly switch the button sewing presser foot and the bar tacking presser foot and simultaneously improve the wear resistance among the button sewing presser foot, the bar tacking presser foot and the sliding grooves on the guide plate.
The invention is realized in the following way:
one of the purposes of the invention is to provide a quick-change mechanism of a presser foot of a sewing machine, which comprises a feeding frame, wherein a left presser foot lifting frame and a right presser foot lifting frame are respectively hinged on two side surfaces of the feeding frame, the front end of the feeding frame is provided with a mounting frame which is integrated with the feeding frame, two first lifting holes are formed in the mounting frame, a guide plate made of hard materials is detachably connected to the front side surface of the mounting frame, second lifting holes which are in one-to-one correspondence with the first lifting holes in the mounting frame are formed in the guide plate, two vertical guide grooves are formed by a vertical boss arranged on the guide plate outside the second lifting holes and a cover plate connected to the guide plate, through holes are formed in the upper ends of a button sewing presser foot or a bar tacking presser foot, and the upper ends of the button sewing presser foot or the bar tacking presser foot respectively extend into the two guide grooves and are hung on the left presser foot lifting frame and the right presser foot lifting frame which extend into the guide grooves through the through holes.
In the quick change mechanism for the presser foot of the sewing machine, a boss is arranged at the bottom of the front end face of the mounting frame, and the lower end face of the guide plate is abutted against the upper plane of the boss.
In the quick change mechanism of the presser foot of the sewing machine, the button sewing machine comprises a presser foot connecting seat, a left presser foot connecting plate and a right presser foot connecting plate which are arranged on the upper plane of the presser foot connecting seat, wherein the rear end of the bottom plane of the presser foot connecting seat is respectively hinged with a left presser foot seat and a right presser foot seat, the bottom planes of the front ends of the left presser foot seat and the right presser foot seat are respectively provided with a left presser foot and a right presser foot, a limiting plate is arranged on the upper plane, an adjusting plate is arranged on the bottom plane of the presser foot connecting seat between the left presser foot seat and the right presser foot seat, a linear guide groove for limiting the forward and backward movement stroke of the adjusting plate is arranged on the presser foot connecting seat, a limit screw penetrates through the linear guide groove and is connected onto the adjusting plate, an adjusting spanner is hinged on the upper plane of the presser foot connecting seat, the adjusting spanner is in abutting connection with the limit screw, a guide seat is arranged on the bottom plane of the adjusting plate, a splayed groove is arranged on the guide seat, the left presser foot seat and the right presser foot seat are respectively connected with the splayed groove through guide posts, the limit screw drives the adjusting plate to move backwards to drive the guide posts to move inwards in the splayed groove, so that the left presser foot seat and the right presser foot seat are in a state, and the reset state is automatically released by the reset force of the adjusting screw.
In the quick change mechanism for the presser foot of the sewing machine, the left presser foot connecting plate and the right presser foot connecting plate are identical in structure and are both L-shaped plates, the vertical parts of the L-shaped plates are provided with the through holes, the transverse parts of the L-shaped plates are provided with the mounting holes, and the transverse parts are mounted on the presser foot connecting seat through the bolts and the mounting holes.
In the quick change mechanism for the presser foot of the sewing machine, the reset spring is a U-shaped spring, more than two mounting holes are formed in the outer side surfaces of the left presser foot seat and the right presser foot seat at intervals in the front-back direction, and two ends of the U-shaped spring are inserted into the corresponding mounting holes.
In the quick change mechanism for the presser foot of the sewing machine, the front end part of the presser foot connecting seat is provided with the finger protector.
In the quick change mechanism for the presser foot of the sewing machine, the adjusting spanner is provided with the arc-shaped guide groove, and the guide screw penetrates through the arc-shaped guide groove and is in threaded connection with the presser foot connecting seat.
In the quick change mechanism for the presser foot of the sewing machine, the hard material is steel or wear-resistant cast iron.
In the quick change mechanism for the presser foot of the sewing machine, the presser foot comprises a left presser foot and a right presser foot.
Another object of the present invention is to provide a sewing machine including the above-mentioned quick change mechanism for presser foot of sewing machine.
Compared with the prior art, the invention has the outstanding advantages that:
1. the bar tacking presser foot and the button sewing presser foot only need to disassemble and assemble the cover plate when in switching, and the switching is quick, simple and convenient.
2. The guide plate is made of hard materials, so that the wear resistance between the button sewing presser foot, the bar tacking presser foot and the sliding grooves on the guide plate is improved, gaps are not easy to appear when the upper ends of the button sewing presser foot and the bar tacking presser foot move on the guide grooves of the guide plate, and the quality of button sewing or bar tacking is ensured.
Description of the drawings:
fig. 1 is a schematic perspective view of a presser foot of the present invention as a button sewing presser foot.
Fig. 2 is a schematic perspective view of the presser foot of the present invention.
Fig. 3 is a schematic view of the button sewing or looping presser foot of the present invention after removal.
Fig. 4 is a schematic view of the feeder frame of the present invention.
Fig. 5 is a schematic view of a guide plate of the present invention.
Fig. 6 is a schematic view of a cover plate of the present invention.
Fig. 7 is a front-up perspective view of the button sewing presser foot of the invention.
Fig. 8 is a rear-side up perspective view of the button sewing presser foot of the present invention.
Fig. 9 is a schematic perspective view of the presser foot attachment mount of the present invention with the back facing upward.
Fig. 10 is a perspective view of the presser foot of the invention being a bar tacking presser foot.
Fig. 11 is a schematic view of the bar code of the present invention.
In the figure, 1, a feeding frame; 2. a hinge shaft; 3. a left presser foot lifting frame; 4. a right presser foot lifting frame; 5. a hanging part; 6. a hanging shaft; 7. a return spring; 8. a presser foot lifting guide plate; 9. a left lifting guide shaft; 10. a right lifting guide shaft; 11. a presser foot lifting transmission rod; 12. a mounting frame; 13. a first lifting hole; 14. a guide plate; 15. a second lifting hole; 16. button sewing presser foot; 17. a bar tacking presser foot; 18. a cover plate; 19. a through hole; 20. a boss; 21. an upper plane of the boss; 22. a chute; 23. a presser foot connecting seat; 24. a left presser foot connecting plate; 25. a right presser foot connecting plate; 26. a left presser foot seat; 27. a right presser foot seat; 28. a left presser foot; 29. a right presser foot; 30. a limiting plate; 31. a guide groove; 32. an adjusting plate; 33. a straight guide groove; 34. a limit screw; 35. adjusting a wrench; 36. a guide seat; 37. splayed grooves; 38. a guide post; 39. a through hole; 40. an arc-shaped guide groove; 41. a guide screw; 42. a U-shaped spring; 43. a mounting hole; 44. a finger protector; 45. a left bar tacking presser foot; 46. a right bar tacking presser foot.
The specific embodiment is as follows:
the invention is further described below with reference to the specific examples, see fig. 1-11:
the invention provides a quick-changing mechanism of a presser foot of a sewing machine, which comprises a feeding frame 1, wherein a left presser foot lifting frame 3 and a right presser foot lifting frame 4 are respectively hinged on two side surfaces of the feeding frame 1 through a hinge shaft 2, and the hinge shaft 2 is connected to the feeding frame 1. The rear ends of the left presser foot lifting frame 3 and the right presser foot lifting frame 4 are provided with a hanging part 5, the rear part of the feeding frame 1 is provided with a hanging shaft 6, and the rear ends of the left presser foot lifting frame 3 and the right presser foot lifting frame 4 are respectively connected with the hanging shaft 6 through a reset spring 7. The left presser foot lifting frame 3 and the right presser foot lifting frame 4 are respectively connected with a presser foot lifting guide plate 8, the upper ends of the presser foot lifting guide plates 8 are respectively provided with a left lifting guide plate shaft 9 and a right lifting guide plate shaft 10, a presser foot lifting transmission rod 11 arranged above the left lifting guide plate shaft 9 and the right lifting guide plate shaft 10 acts on the left lifting guide plate shaft 9 and the right lifting guide plate shaft 10 to drive the left presser foot lifting frame 3 and the right presser foot lifting frame 4 to act so as to realize presser foot lifting action, and a reset spring 7 drives the presser foot to reset.
The front end of the feeding frame 1 is provided with a mounting frame 12 which is integrated with the feeding frame 1, the mounting frame 12 is provided with two first lifting holes 13, the front side surface of the mounting frame 12 is detachably connected with guide plates 14 made of hard materials, the guide plates 14 are provided with second lifting holes 15 which are in one-to-one correspondence with the first lifting holes 13 on the mounting frame 12, vertical bosses arranged on the guide plates 14 outside the second lifting holes 15 form two sliding grooves 22, the sliding grooves 22 and a cover plate 18 connected on the guide plates 14 form two vertical guide grooves, the front ends of the left presser foot lifting frame 3 and the right presser foot lifting frame 4 are arranged in the first lifting holes 13 and the second lifting holes 15 in a penetrating mode, and the first lifting holes 13 and the second lifting holes 15 are bar-shaped holes, so that the front ends of the left presser foot lifting frame 3 and the right presser foot lifting frame 4 can conveniently move up and down. The upper ends of the button sewing presser foot 16 or the bar tacking presser foot 17 are provided with through holes 19, and the upper ends of the button sewing presser foot 16 or the bar tacking presser foot 17 respectively extend into the two guide grooves and are hung on the left presser foot lifting frame 3 and the right presser foot lifting frame 4 through the through holes.
The guide plate 14 is a steel plate, the cover plate 15 is a steel plate, and the corresponding feeding frame 1 is also made of aluminum. Of course, the guide plate 14 and the cover plate 15 may be made of other hard materials having high hardness, such as wear-resistant cast iron. The guide plate 14 is made of hard materials, so that the wear resistance between the button sewing presser foot and the bar tacking presser foot and the sliding groove on the guide plate can be improved.
Since the button sewing presser foot 16 is relatively heavy, the bar tacking presser foot 17 is relatively light. Therefore, in the prior art, the button sewing presser foot 16 and the bar tacking presser foot 17 are provided with different presser foot joints, for example, the button sewing presser foot 16 adopts a steel presser foot joint so as to ensure the wear resistance between the upper end of the button sewing presser foot 16 and the presser foot joint during working; while the stitch presser 17 adopts an aluminum presser structure.
The invention divides the presser foot joint into the mounting frame 12 and the guide plate 14, the upper ends of the button sewing presser foot 16 and the bar tacking presser foot 17 are connected on the guide plate 14, so that the wear resistance between the upper end of the button sewing presser foot 16 and the presser foot joint in working can be ensured, and the invention is also applicable to the bar tacking presser foot 17. Therefore, in the present invention, when the bar tacking presser foot 17 and the button sewing presser foot 16 are replaced, the cover plate 18 is only required to be detached, and the bar tacking presser foot 17 and the button sewing presser foot 16 are switched. And the cover plate 18 is positioned on the front end surface of the presser foot joint, so that the disassembly and assembly are more convenient and simpler.
Further, a boss 20 is disposed at the bottom of the front end surface of the mounting frame 12, and the lower end surface of the guide plate 14 abuts against an upper plane 21 of the boss 20. The rear side surface of the guide plate 14 is in surface-to-surface contact with the front side surface of the mounting seat 12, and the bottom plane of the guide plate 14 is also in surface-to-surface contact with the upper plane 21 of the boss 20, so that the stability and the connection strength of connection are greatly improved.
Further, two sliding grooves 22 are provided on the front side of the guide plate 14, and the upper ends of the button sewing presser foot 16 or the bar tacking presser foot 17 are provided in the sliding grooves 22. When the presser foot is lifted, under the action of the left presser foot lifting frame 3 and the right presser foot lifting frame 4, the upper ends of the button sewing presser foot 16 and the bar tacking presser foot 17 move up and down in the sliding groove 22. Because the guide plate 14 is made of steel, the abrasion phenomenon between the upper ends of the button sewing presser foot 16 and the bar tacking presser foot 17 and the sliding groove 22 does not occur, and the gap between the upper ends is ensured not to occur.
Specifically, the button sewing presser foot 16 of the present invention includes a presser foot connecting seat 23, and a left presser foot connecting plate 24 and a right presser foot connecting plate 25 disposed on an upper plane of the presser foot connecting seat 23, wherein the left presser foot connecting plate 24 and the right presser foot connecting plate 25 have the same structure and are all L-shaped plates. Wherein, the through hole 19 is located on the vertical plates of the left presser foot connecting plate 24 and the right presser foot connecting plate 25, and the vertical plates of the left presser foot connecting plate 24 and the right presser foot connecting plate 25 are arranged in the chute 22. The transverse parts of the left presser foot connecting plate 24 and the right presser foot connecting plate 25 are connected with the presser foot connecting seat 23 through screws.
The rear ends of the bottom planes of the presser foot connecting seat 23 are respectively hinged with a left presser foot seat 26 and a right presser foot seat 27, the bottom planes of the front ends of the left presser foot seat 26 and the right presser foot seat 27 are respectively provided with a left presser foot 28, a right presser foot 29 and an upper plane, and a limiting plate 30 is arranged on the upper plane, and a clamping position of a button is formed between the limiting plate 30 and the left presser foot 28 and the right presser foot 29.
The bottom plane of the presser foot connecting seat 23 between the left presser foot seat 26 and the right presser foot seat 27 is provided with a guide groove 31, an adjusting plate 32 is arranged in the guide groove 31, a straight guide groove 33 for limiting the forward and backward movement travel of the adjusting plate 32 is arranged on the presser foot connecting seat 23, a limit screw 34 passes through the straight guide groove 33 to be connected to the adjusting plate 32, an adjusting spanner 35 is hinged on the upper plane of the presser foot connecting seat 23, the adjusting spanner 35 is in contact connection with the limit screw 34, a guide seat 36 is arranged on the bottom plane of the adjusting plate 32, a splayed groove 37 is arranged on the guide seat 36, the left and right presser foot seats 26 and 27 are connected with the splayed groove 37 through guide posts 38 respectively, the adjusting spanner 35 is rotated to act on the limit screw 34 to move backwards in the straight guide groove 33, the limit screw 34 is driven to move backwards through the limit screw 34, the guide posts 38 are driven to move in the splayed grooves 37, the left and right presser foot seats 26 and 27 are in an opened state, and the left and right presser foot seats 26 and 27 are automatically reset through reset after the force acted on the limit screw 35 is released.
In order to achieve the purpose of weight reduction, the invention is provided with a plurality of through holes 39 on the presser foot connecting seat 23 and the left and right presser foot seats 26, 27.
Further, the adjusting wrench 35 is provided with an arc-shaped guiding groove 40, and the guiding screw 41 is screwed on the presser foot connecting seat 23 through the arc-shaped guiding groove 40. One end of the adjusting spanner 35 is hinged on the upper plane of the presser foot connecting seat 23 by a screw, and when the adjusting spanner 35 rotates around the screw, the guide screw 41 moves in the arc-shaped guide groove 40 on the other end of the adjusting spanner 35.
Specifically, the return spring is a U-shaped spring 42, and two or more mounting holes 43 are provided on the outer side surfaces of the left and right presser foot bases 26, 27 at intervals in the front-rear direction, and two ends of the return spring 42 are inserted into the corresponding mounting holes 43.
Wherein, reset spring still can be reset torsion spring: the limiting screw 34 is sleeved with a reset torsion spring, one end of the reset torsion spring is connected to the presser foot connecting seat 23, and the other end of the reset torsion spring is connected to the adjusting spanner 35.
The action process of the button sewing presser foot 16 of the invention is as follows:
pulling the adjusting spanner 35 to act on the limit screw 34 to move backwards in the linear guide groove 33, driving the guide seat 36 to move backwards, and leading the guide posts 38 of the left and right presser foot seats 26 and 27 to move forwards in the splayed groove 37, wherein the left and right presser foot seats 26 and 27 are in an open state;
when the force acting on the adjusting spanner 35 disappears, the left and right presser foot seats 26 and 27 are clamped under the action of the U-shaped spring 42, so that the guide post 38 moves backwards in the splayed groove 37 to drive the adjusting plate 32 and the guide seat 36 to automatically reset, and the left and right presser foot seats 26 and 27 are in a closed state.
In another structure, the force acting on the adjusting spanner 35 disappears, the adjusting plate 32 and the guide seat 36 are driven to automatically reset under the action of the reset torsion spring, and at the moment, the guide column 38 moves backwards in the splayed groove 37 to close the left and right presser foot seats 26 and 27.
When the button is to be nailed, the adjusting spanner 35 is pushed backward, then the left presser foot 28 and the right presser foot 29 are in an open state, and the adjusting plate 32 is in a retreated state. Putting the button into a hole site formed between the left presser foot 28 and the right presser foot 29 and the front end of the adjusting plate 32; releasing the adjustment wrench 35 can clamp the button.
In order to prevent injury to workers due to erroneous operation during sewing, the front end portion of the presser foot connecting base 23 is provided with a finger protector 44. The finger protector 44 has a shape like a Chinese character kou with an opening in the middle of the front end, two ends of the opening are bent to form inserting rods, the two inserting rods are inserted into the front end of the presser foot connecting seat 23, and the front part of the kou-kou structure is bent upwards.
The bar code 17 of the present invention includes a left bar code 45 and a right bar code 46. Wherein the insertion hole 19 is positioned at the upper ends of the left and right bar-tacking presser feet 45, 46, and the upper ends of the left and right bar-tacking presser feet 45, 46 are also positioned in the chute 22.
Another object of the present invention is to provide a sewing machine, comprising the above-mentioned quick-change mechanism for presser foot of sewing machine.
The above embodiment is only one of the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention, therefore: all equivalent changes in shape, structure and principle of the invention should be covered in the scope of protection of the invention.
Claims (6)
1. The utility model provides a sewing machine presser foot quick change mechanism, includes pay-off frame (1), articulates respectively on the both sides face of pay-off frame (1) has left presser foot hoisting frame (3) and right presser foot hoisting frame (4), its characterized in that: the front end of the feeding frame (1) is provided with a mounting frame (12) which is integrally structured with the feeding frame (1), two first lifting holes (13) are formed in the mounting frame (12), guide plates (14) made of hard materials are detachably connected to the front side surface of the mounting frame (12), second lifting holes (15) which are in one-to-one correspondence with the first lifting holes (13) in the mounting frame (12) are formed in the guide plates (14), two vertical guide grooves are formed by vertical bosses arranged on the guide plates (14) at the outer sides of the second lifting holes (15) and cover plates (18) connected to the guide plates (14), through holes (19) are formed in the upper ends of button sewing presser feet (16) or loop presser feet (17), and the upper ends of the button sewing presser feet (16) or loop presser feet (17) extend into the two guide grooves respectively and are hung on a left presser foot lifting frame (3) and a right presser foot lifting frame (4) which extend into the guide grooves through the through holes;
the button sewing presser foot (16) comprises a presser foot connecting seat (23) and a left presser foot connecting plate (24) and a right presser foot connecting plate (25) which are arranged on the upper plane of the presser foot connecting seat (23), wherein the rear end of the bottom plane of the presser foot connecting seat (23) is respectively hinged with a left presser foot seat (26) and a right presser foot seat (27), the bottom planes of the front ends of the left presser foot seat (26) and the right presser foot seat (27) are respectively provided with a left presser foot (28) and a right presser foot (29), a limiting plate (30) is arranged on the upper plane, an adjusting plate (32) is arranged on the bottom plane of the presser foot connecting seat (23) between the left presser foot seat (26) and the right presser foot seat (27), a linear guide groove (33) for limiting the forward and backward movement stroke of the adjusting plate (32) is arranged on the presser foot connecting seat (23), a limiting screw (34) is connected on the adjusting plate (32) through the linear guide groove (33), the upper plane of the connecting seat (23) is hinged with an adjusting spanner (35), the adjusting spanner (35) is abutted with a limiting screw (34), the bottom plane of the adjusting plate (32) is provided with a guide groove (36) for limiting the forward and backward movement of the presser foot connecting seat (32), a guide groove (37) is respectively arranged on the left presser foot connecting seat (37), the adjusting spanner (35) is rotated to drive the adjusting plate (32) to move backwards through the limit screw (34) so as to drive the guide post (38) to move in the splayed groove (37), so that the left presser foot seat (26) and the right presser foot seat (27) are in an open state, and after the force of the adjusting spanner (35) acting on the limit screw (34) is relieved, the left presser foot seat (26) and the right presser foot seat (27) are automatically reset through the reset spring;
the left presser foot connecting plate (24) and the right presser foot connecting plate (25) have the same structure and are L-shaped plates, the vertical parts of the L-shaped plates are provided with through holes, the transverse parts of the L-shaped plates are provided with mounting holes, and the transverse parts are mounted on the presser foot connecting seat (23) through screws and the mounting holes;
the reset spring is a U-shaped spring, more than two mounting holes (43) are formed in the outer side surfaces of the left presser foot seat (26) and the right presser foot seat (27) at intervals in the front-back direction, and two ends of the U-shaped spring (42) are inserted into the corresponding mounting holes (43);
the front end part of the presser foot connecting seat (23) is provided with a finger protector (44).
2. The quick change mechanism of a presser foot of a sewing machine of claim 1, wherein: a boss (20) is arranged at the bottom of the front end face of the mounting frame (12), and the lower end face of the guide plate (14) is abutted on an upper plane (21) of the boss (20).
3. The quick change mechanism of a presser foot of a sewing machine of claim 1, wherein: an arc-shaped guide groove (40) is formed in the adjusting spanner (35), and a guide screw (41) penetrates through the arc-shaped guide groove (40) and is in threaded connection with the presser foot connecting seat (23).
4. The quick change mechanism of a presser foot of a sewing machine of claim 1, wherein: the hard material is steel or wear-resistant cast iron.
5. The quick change mechanism of a presser foot of a sewing machine of claim 1, wherein: the bar tacking presser foot (17) comprises a left bar tacking presser foot (45) and a right bar tacking presser foot (46).
6. A sewing machine, characterized in that: a quick change mechanism for presser foot of sewing machine according to any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710359381.6A CN108950895B (en) | 2017-05-19 | 2017-05-19 | Quick change mechanism for presser foot of sewing machine and sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710359381.6A CN108950895B (en) | 2017-05-19 | 2017-05-19 | Quick change mechanism for presser foot of sewing machine and sewing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108950895A CN108950895A (en) | 2018-12-07 |
| CN108950895B true CN108950895B (en) | 2023-09-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710359381.6A Active CN108950895B (en) | 2017-05-19 | 2017-05-19 | Quick change mechanism for presser foot of sewing machine and sewing machine |
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| Country | Link |
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| CN (1) | CN108950895B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110115399B (en) * | 2019-05-29 | 2020-12-22 | 绍兴发靓内衣有限公司 | Bra processing technology |
| CN110434797B (en) * | 2019-09-03 | 2024-05-03 | 中国电子科技集团公司第十二研究所 | Component quick-change part and quick-change assembly comprising same |
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| CN108950895A (en) | 2018-12-07 |
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