CN217378205U - Well presser foot is lifted and is pressed line mechanism and sewing machine - Google Patents
Well presser foot is lifted and is pressed line mechanism and sewing machine Download PDFInfo
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- CN217378205U CN217378205U CN202221389754.7U CN202221389754U CN217378205U CN 217378205 U CN217378205 U CN 217378205U CN 202221389754 U CN202221389754 U CN 202221389754U CN 217378205 U CN217378205 U CN 217378205U
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Abstract
The application discloses well presser foot is lifted and is pressed line mechanism and sewing machine of sweeping, well presser foot is lifted and is pressed line mechanism and include: the lower extreme and the sweeping line subassembly of sweeping line arm-tie are articulated, and the second end of sweeping line connecting plate is located the below that compresses tightly the pole and connect. After sewing, the driving source drives the sweeping line connecting plate to rotate around the bearing shaft through the sweeping line transmission assembly, and then drives the sweeping line rod assembly to sweep the line through the sweeping line pulling plate, after the sweeping is finished, along with the continuous rotation of the sweeping line connecting plate, the second end of the sweeping line connecting plate upwards jacks up the pressing rod joint, and then drives the middle presser foot to lift up, so that the sweeping can be carried out before the middle presser foot lifts up, and then the sweeping line rod is prevented from colliding with the middle presser foot.
Description
Technical Field
The application relates to the technical field of sewing machines, in particular to a middle presser foot lifting and pressing line sweeping mechanism and further relates to a sewing machine comprising the middle presser foot lifting and pressing line sweeping mechanism.
Background
The middle presser foot of the sewing machine has the function of flattening sewing materials, and the problems that the sewing materials float up and down along with a needle to cause needle skipping, even stitches cannot be formed and the like are solved.
The middle presser foot and the thread sweeping rod of the existing sewing machine are usually driven by respective independent driving mechanisms, when sewing is finished, the presser foot is lifted, and the thread sweeping rod sweeps threads, so that interference phenomenon may occur in the operation process, and the hidden trouble that the thread sweeping rod and the middle presser foot collide with each other exists.
Therefore, how to avoid the mutual collision between the wire sweeping rod and the middle presser foot is a technical problem that needs to be solved urgently by the technical personnel in the field.
SUMMERY OF THE UTILITY MODEL
An object of this application is to provide a well presser foot is lifted and is pressed line mechanism of sweeping can avoid sweeping line pole and well presser foot collision each other, and then improves the security of sewing, and another purpose provides one kind and lifts sewing machine who presses line mechanism including above-mentioned well presser foot.
In order to achieve the above purpose, the present application provides the following technical solutions:
a middle presser foot lifting and pressing line sweeping mechanism comprises:
the pressing device comprises a pressing rod, a pressing rod joint, a middle pressing foot and a guide rod, wherein the pressing rod is sleeved on the guide rod, the middle pressing foot is connected to the lower end of the pressing rod, and the pressing rod joint is connected to the upper end of the pressing rod;
the sweeping line connecting plate is connected with the sweeping line transmission assembly, a body of the sweeping line connecting plate is rotatably connected to a bearing shaft, a first end of the sweeping line connecting plate is hinged to the sweeping line transmission assembly, a second end of the sweeping line connecting plate is hinged to the upper end of the sweeping line pulling plate, the lower end of the sweeping line pulling plate is hinged to the sweeping line rod assembly, and the second end of the sweeping line connecting plate is located below the pressing rod joint;
the driving source is used for driving the sweeping line connecting plate to rotate around the bearing shaft through the sweeping line transmission assembly, and then driving the sweeping line rod assembly to sweep the line through the sweeping line pulling plate, and after the sweeping line is finished, along with the continuous rotation of the sweeping line connecting plate, the second end of the sweeping line connecting plate upwards jacks the pressing rod joint, and then the middle presser foot is driven to lift.
Preferably, a second end of the sweeping line connecting plate is provided with a pressure lifting cam, and the pressure lifting cam is located below the pressing rod joint.
Preferably, the upper end of the sweeping line pulling plate is hinged to the sweeping line connecting plate through a first pin shaft, the lower end of the sweeping line pulling plate is hinged to the sweeping line rod assembly through a second pin shaft, and the axes of the first pin shaft and the second pin shaft are perpendicular to each other.
Preferably, the sweeping line transmission assembly comprises a sweeping line cam, a sweeping line crank, a crank shaft, a crank tension spring and a sweeping line connecting rod assembly, the sweeping line cam is connected with the driving source, the sweeping line crank body is rotatably connected to the crank shaft, the crank tension spring is used for pressing the first end of the sweeping line crank on the sweeping line cam, the second end of the sweeping line crank is hinged to one end of the sweeping line connecting rod assembly, and the other end of the sweeping line connecting rod assembly is hinged to the first end of the sweeping line connecting rod assembly.
Preferably, the sweeping line connecting rod assembly comprises a first sweeping line connecting rod, a second sweeping line connecting rod and a sweeping line rotating crank, one end of the first sweeping line connecting rod is hinged with one end of the sweeping line crank, and the other end of the first sweeping line connecting rod is hinged with the sweeping line rotating crank; one end of the second sweeping line connecting rod is hinged with the sweeping line rotating crank, and the other end of the second sweeping line connecting rod is hinged with the sweeping line connecting plate.
Preferably, the device further comprises a presser foot transmission assembly and an intermittent connecting rod, wherein one end of the intermittent connecting rod is provided with a strip-shaped hole extending along the length direction of the intermittent connecting rod, the other end of the intermittent connecting rod is hinged with the presser foot transmission assembly, a pin shaft penetrating through the strip-shaped hole is arranged on the outer side of the pressing rod joint, and the presser foot transmission assembly is used for driving the pressing rod joint, the pressing rod and the middle presser foot to lift through the intermittent connecting rod.
Preferably, the presser foot transmission assembly comprises a cam connecting rod assembly, a first pressure arm assembly, a pressure arm seat assembly and a second pressure arm assembly, the cam connecting rod assembly is connected with the first pressure arm assembly, the first pressure arm assembly is rotatably connected to the pressure arm seat assembly, a first end of the second pressure arm assembly is hinged with the first pressure arm assembly, and a second end of the second pressure arm assembly is hinged with the intermittent connecting rod; the cam connecting rod assembly is used for controlling the first pressure arm assembly to rotate so as to drive the second pressure arm assembly to rotate around the first end of the second pressure arm assembly, and then the pressing rod connector is driven to lift through the intermittent connecting rod.
Preferably, the pin shaft further comprises a pressing elastic assembly, and the pressing elastic assembly is used for pressing the pin shaft in the strip-shaped hole.
Preferably, compress tightly elastic component and include compression spring and pressure regulating screw, compression spring's upper end with pressure regulating screw supports tightly, pressure regulating screw is used for adjusting compression spring's pressure.
A sewing machine comprises the middle presser foot lifting and pressing line sweeping mechanism.
Compared with the prior art, the technical scheme has the following advantages:
the utility model provides a well presser foot is lifted and is pressed sweep line mechanism and sewing machine, after making up the end, the driving source drives through sweeping line drive assembly and sweeps the line connecting plate and rotate around bearing the axle, and then drive through sweeping the line arm-tie and sweep the line pole subassembly and sweep the line, after sweeping the line completion, along with sweeping the continuation of line connecting plate and rotating, the second end of sweeping the line connecting plate upwards jack-up compresses tightly the pole joint, and then the presser foot lifts up in the drive, consequently can sweep the line before well presser foot lifts up, and then avoid sweeping the line pole and well presser foot and bump, in addition can realize lifting of well presser foot and sweeping the line operation of line pole subassembly through a driving source, consequently can practice thrift the cost of mechanism.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural view of a middle presser foot lifting and pressing line sweeping mechanism according to an embodiment of the present application;
FIG. 2 is a schematic structural diagram before line sweeping;
FIG. 3 is a schematic view of the structure after line sweeping;
fig. 4 is a partial schematic structural view of a middle presser foot lifting and pressing line sweeping mechanism according to an embodiment of the present application;
fig. 5 is a schematic structural view of a part of a middle presser foot lifting and pressing line sweeping mechanism at another view angle according to an embodiment of the present application.
The reference numbers are as follows:
the device comprises a driving source 1, a sweeping cam 2, a sweeping crank 3, a crank shaft 4, a tension spring 5, a first sweeping connecting rod 6, a sweeping rotating crank 7, a second sweeping connecting rod 8, a sweeping connecting plate 9, a lifting cam 10, a sweeping pulling plate 11, a sweeping rod 12, a sweeping fixing frame 13, a pressing rod 14, a pressing rod joint 15, a guide rod 16, a compression spring 17, a pressure regulating screw 18, a pressure regulating nut 19, a cam connecting rod assembly 20, a first pressing arm assembly 21, a pressing arm seat assembly 22, a second pressing arm assembly 23, an intermittent connecting rod 24, a pin shaft 25, a middle pressing foot 26 and a bearing shaft 27.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Referring to fig. 1 to 5, fig. 1 is a schematic structural view of a middle presser foot lifting and pressing line sweeping mechanism according to an embodiment of the present application; FIG. 2 is a schematic structural diagram before line sweeping; FIG. 3 is a schematic view of the structure after line sweeping; fig. 4 is a partial schematic structural view of a middle presser foot lifting and pressing sweeping line mechanism according to an embodiment of the present application; fig. 5 is a schematic structural view of a part of a middle presser foot lifting and pressing line sweeping mechanism at another view angle according to an embodiment of the present application.
The utility model provides a well presser foot lifts and presses line mechanism of sweeping that provides, includes: the sweeping line cleaning device comprises a pressing rod 14, a pressing rod joint 15, a middle presser foot 26, a guide rod 16, a driving source 1, a sweeping line transmission assembly, a sweeping line connecting plate 9, a sweeping line pulling plate 11 and a sweeping line assembly, wherein the pressing rod 14 is sleeved on the guide rod 16, the middle presser foot 26 is connected to the lower end of the pressing rod 14, the pressing rod joint 15 is connected to the upper end of the pressing rod 14, the driving source 1 is connected with the sweeping line transmission assembly, a body of the sweeping line connecting plate 9 is rotatably connected to a bearing shaft 27, the first end of the sweeping line connecting plate 9 is hinged to the sweeping line transmission assembly, the second end of the sweeping line connecting plate 9 is hinged to the upper end of the sweeping line pulling plate 11, the lower end of the sweeping line pulling plate 11 is hinged to the sweeping line assembly, the second end of the sweeping line connecting plate 9 is located below the pressing rod joint 15, and a certain distance exists between the second end of the sweeping line connecting plate 9 and the pressing rod joint 15 before sweeping line. After sewing, the driving source 1 drives the sweeping line connecting plate 9 to rotate around the bearing shaft 27 through the sweeping line transmission assembly, and then drives the sweeping line rod assembly to sweep the line through the sweeping line pulling plate 11, after the sweeping line is finished, along with the continuous rotation of the sweeping line connecting plate 9, the second end of the sweeping line connecting plate 9 upwards jacks up the pressing rod joint 15, and then drives the middle presser foot 26 to be lifted, so that the line can be swept before the middle presser foot 26 is lifted, and then the line sweeping rod 12 is prevented from colliding with the middle presser foot 26, and in addition, the lifting and pressing of the middle presser foot 26 and the line sweeping operation of the sweeping line rod assembly can be realized through one driving source 1, and therefore the cost of the mechanism can be saved.
Furthermore, a second end of the sweeping line connecting plate 9 is provided with a lifting and pressing cam 10, the lifting and pressing cam 10 is located below the pressing rod joint 15, and stable lifting and pressing of the middle presser foot 26 can be achieved through a curve structure on the peripheral side of the lifting and pressing cam 10.
In some embodiments, the upper end of the sweeping wire pulling plate 11 is hinged to the sweeping wire connecting plate 9 through a first pin shaft, the lower end of the sweeping wire pulling plate 11 is hinged to the sweeping wire rod assembly through a second pin shaft, the axes of the first pin shaft and the second pin shaft are perpendicular to each other, that is, the rotation plane of the sweeping wire pulling plate 11 and the rotation plane of the sweeping wire connecting plate 9 are not coplanar through the second pin shaft, so that the arrangement of the relative positions of the sweeping wire pulling plate 11, the sweeping wire connecting plate 9 and the sweeping wire rod assembly can be facilitated. The sweeping line rod assembly comprises a sweeping line rod 12 and a sweeping line fixing frame 13, the height position of the sweeping line fixing frame 13 can be adjusted through a waist-shaped hole formed in the sweeping line fixing frame 13, the body of the sweeping line rod 12 is hinged to the sweeping line fixing frame 13, and one end of the sweeping line rod 12 is hinged to the sweeping line pull plate 11.
In some embodiments, the sweeping line transmission assembly comprises a sweeping line cam 2, a sweeping line crank 3, a crank shaft 4, a crank tension spring 5 and a sweeping line connecting rod assembly, wherein the sweeping line cam 2 is connected with the driving source 1, a body of the sweeping line crank 3 is rotatably connected to the crank shaft 4, the crank tension spring 5 is used for pressing a first end of the sweeping line crank 3 on the sweeping line cam 2, the sweeping line crank 3 can be ensured to be in close contact with the sweeping line cam 2 through the crank tension spring 5, a second end of the sweeping line crank 3 is hinged to one end of the sweeping line connecting rod assembly, and the other end of the sweeping line connecting rod assembly is hinged to a first end of the sweeping line connecting rod assembly 9. When the line is needed to be swept, the driving source 1 drives the line sweeping cam 2 to rotate, and then drives the line sweeping crank 3 to rotate around the crank shaft 4, so that the line sweeping connecting plate 9 is driven to rotate through the line sweeping connecting rod assembly. The sweeping line connecting rod assembly comprises a first sweeping line connecting rod 6, a second sweeping line connecting rod 8 and a sweeping line rotating crank 7, one end of the first sweeping line connecting rod 6 is hinged with one end of the sweeping line crank 3, and the other end of the first sweeping line connecting rod is hinged with the sweeping line rotating crank 7; one end of the second sweeping line connecting rod 8 is hinged with the sweeping line rotating crank 7, and the other end is hinged with the sweeping line connecting plate 9.
In some embodiments, the automatic wire sweeping device further comprises a presser foot transmission assembly and an intermittent connecting rod 24, wherein one end of the intermittent connecting rod 24 is provided with a strip-shaped hole extending along the length direction of the intermittent connecting rod, the other end of the intermittent connecting rod 24 is hinged with the presser foot transmission assembly, a pin shaft 25 penetrating through the strip-shaped hole is arranged on the outer side of the pressing rod joint 15, and when the second end of the wire sweeping connecting plate 9 jacks up the pressing rod joint 15, the pin shaft 25 can move upwards in the strip-shaped hole. The pressure foot 26 transmission assembly comprises a cam connecting rod assembly 20, a first pressure arm assembly 21, a pressure arm seat assembly 22 and a second pressure arm assembly 23, the cam connecting rod assembly 20 is connected with the first pressure arm assembly 21, the first pressure arm assembly 21 is rotatably connected onto the pressure arm seat assembly 22, the first end of the second pressure arm assembly 23 is hinged to the first pressure arm assembly 21, and the second end of the second pressure arm assembly is hinged to the intermittent connecting rod 24. The cam link assembly 20 may control the first pressure arm assembly 21 to rotate so as to rotate the second pressure arm assembly 23 about the first end thereof, and then the pressing rod joint 15, the pressing rod 14 and the middle pressure foot 26 are lifted through the intermittent link.
In some embodiments, a pressing elastic component is further included, and the pressing elastic component can apply downward pressure to the pressing rod joint 15 to press the pin 25 in the strip-shaped hole, so that the pin 25 is tightly connected with the intermittent link 24 in the sewing process. Wherein, it includes compression spring 17 and pressure regulating screw 18 to compress tightly elastic component, compression spring 17's upper end supports tightly with pressure regulating screw 18, through revolving wrong pressure regulating screw 18, can adjust compression spring 17's pressure, further compress tightly elastic component still includes pressure regulating nut 19, pressure regulating screw 18 and 19 threaded connection of pressure regulating nut, pressure regulating nut 19 is relatively fixed, when revolving wrong pressure regulating screw 18, pressure regulating screw 18 can axial displacement, and then reach the purpose of the flexible volume of adjustment compression spring 17, in addition still can establish the upper end at guide bar 16 with pressure regulating screw 18 cover, so that adjust compression spring 17's pressure.
The embodiment of the application further provides a sewing machine, the middle presser foot lifting and pressing line sweeping mechanism comprises the middle presser foot lifting and pressing line sweeping mechanism provided by any one of the embodiments, the middle presser foot lifting and pressing line sweeping mechanism is referred to for the beneficial effects, and repeated description is omitted here.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The middle presser foot lifting and pressing thread sweeping mechanism and the sewing machine provided by the application are described in detail above. The principles and embodiments of the present application are explained herein using specific examples, which are provided only to help understand the method and the core idea of the present application. It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present application without departing from the principle of the present application, and such improvements and modifications also fall within the scope of the claims of the present application.
Claims (10)
1. The utility model provides a well presser foot is lifted and is pressed sweep line mechanism which characterized in that includes:
the pressing device comprises a pressing rod, a pressing rod joint, a middle pressing foot and a guide rod, wherein the pressing rod is sleeved on the guide rod, the middle pressing foot is connected to the lower end of the pressing rod, and the pressing rod joint is connected to the upper end of the pressing rod;
the sweeping machine comprises a driving source, a sweeping line transmission assembly, a sweeping line connecting plate, a sweeping line pull plate and a sweeping line rod assembly, wherein the driving source is connected with the sweeping line transmission assembly, a body of the sweeping line connecting plate is rotatably connected to a bearing shaft, a first end of the sweeping line connecting plate is hinged to the sweeping line transmission assembly, a second end of the sweeping line connecting plate is hinged to the upper end of the sweeping line pull plate, the lower end of the sweeping line pull plate is hinged to the sweeping line rod assembly, and the second end of the sweeping line connecting plate is located below a pressing rod joint;
the driving source is used for driving the sweeping line connecting plate to rotate around the bearing shaft through the sweeping line transmission assembly, and then driving the sweeping line rod assembly to sweep the line through the sweeping line pulling plate, and after the sweeping line is finished, along with the continuous rotation of the sweeping line connecting plate, the second end of the sweeping line connecting plate upwards jacks the pressing rod joint, and then the middle presser foot is driven to lift.
2. The middle presser foot lifting and pressing sweeping line mechanism as claimed in claim 1, wherein a lifting and pressing cam is provided at a second end of the sweeping line connecting plate, and the lifting and pressing cam is located below the pressing rod joint.
3. The middle presser foot lifting and pressing sweeping line mechanism according to claim 1, wherein the upper end of the sweeping line pulling plate is hinged to the sweeping line connecting plate through a first pin shaft, the lower end of the sweeping line pulling plate is hinged to the sweeping line rod assembly through a second pin shaft, and the axes of the first pin shaft and the second pin shaft are perpendicular to each other.
4. The middle presser foot lifting and pressing sweeping line mechanism according to claim 1, wherein the sweeping line transmission assembly comprises a sweeping line cam, a sweeping line crank, a crank shaft, a crank tension spring and a sweeping line connecting rod assembly, the sweeping line cam is connected with the driving source, a body of the sweeping line crank is rotatably connected to the crank shaft, the crank tension spring is used for pressing a first end of the sweeping line crank on the sweeping line cam, a second end of the sweeping line crank is hinged to one end of the sweeping line connecting rod assembly, and the other end of the sweeping line connecting rod assembly is hinged to a first end of the sweeping line connecting rod assembly.
5. The middle presser foot lifting and pressing sweeping line mechanism according to claim 4, wherein the sweeping line connecting rod assembly comprises a first sweeping line connecting rod, a second sweeping line connecting rod and a sweeping line rotating crank, one end of the first sweeping line connecting rod is hinged with one end of the sweeping line crank, and the other end of the first sweeping line connecting rod is hinged with the sweeping line rotating crank; one end of the second sweeping line connecting rod is hinged with the sweeping line rotating crank, and the other end of the second sweeping line connecting rod is hinged with the sweeping line connecting plate.
6. The middle presser foot lifting and pressing sweeping line mechanism according to any one of claims 1 to 5, further comprising a presser foot transmission assembly and an intermittent link, wherein one end of the intermittent link is provided with a strip-shaped hole extending along the length direction of the intermittent link, the other end of the intermittent link is hinged with the presser foot transmission assembly, a pin shaft penetrating through the strip-shaped hole is arranged on the outer side of the pressing rod joint, and the presser foot transmission assembly is used for driving the pressing rod joint, the pressing rod and the middle presser foot to lift through the intermittent link.
7. The middle presser foot lifting and pressing sweeping line mechanism of claim 6, wherein the presser foot transmission assembly comprises a cam link assembly, a first pressing arm assembly, a pressing arm seat assembly and a second pressing arm assembly, the cam link assembly is connected with the first pressing arm assembly, the first pressing arm assembly is rotatably connected with the pressing arm seat assembly, a first end of the second pressing arm assembly is hinged with the first pressing arm assembly, and a second end of the second pressing arm assembly is hinged with the intermittent link; the cam connecting rod assembly is used for controlling the first pressure arm assembly to rotate so as to drive the second pressure arm assembly to rotate around the first end of the second pressure arm assembly, and then the pressing rod connector is driven to lift through the intermittent connecting rod.
8. The middle presser foot lifting and pressing sweeping line mechanism of claim 7, further comprising a pressing elastic assembly for pressing the pin shaft in the strip-shaped hole.
9. The middle presser foot lifting and pressing sweeping line mechanism as claimed in claim 8, wherein the pressing elastic assembly comprises a compression spring and a pressure regulating screw, the upper end of the compression spring is tightly abutted with the pressure regulating screw, and the pressure regulating screw is used for regulating the pressure of the compression spring.
10. A sewing machine comprising the middle presser foot lifting and pressing line mechanism of any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221389754.7U CN217378205U (en) | 2022-06-06 | 2022-06-06 | Well presser foot is lifted and is pressed line mechanism and sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221389754.7U CN217378205U (en) | 2022-06-06 | 2022-06-06 | Well presser foot is lifted and is pressed line mechanism and sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217378205U true CN217378205U (en) | 2022-09-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221389754.7U Active CN217378205U (en) | 2022-06-06 | 2022-06-06 | Well presser foot is lifted and is pressed line mechanism and sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217378205U (en) |
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2022
- 2022-06-06 CN CN202221389754.7U patent/CN217378205U/en active Active
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