CN210438942U - Thread trimming mechanism and sewing machine with same - Google Patents
Thread trimming mechanism and sewing machine with same Download PDFInfo
- Publication number
- CN210438942U CN210438942U CN201920857869.6U CN201920857869U CN210438942U CN 210438942 U CN210438942 U CN 210438942U CN 201920857869 U CN201920857869 U CN 201920857869U CN 210438942 U CN210438942 U CN 210438942U
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- thread
- stop
- trimming mechanism
- cutter
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Abstract
The utility model provides a thread trimming mechanism and have its sewing machine, thread trimming mechanism are used for cuting sewing machine's bottom line and upper thread, and thread trimming mechanism includes: the first knife piece is provided with a line hooking part and can rotate around a preset axis so as to hook the bottom line and the upper line through the line hooking part; after the first knife piece is used for hooking the thread, at least part of the first knife piece moves towards the position close to the second knife piece until the thread hooking part is contacted with the blade of the second knife piece so as to carry out thread cutting; spacing cardboard, spacing cardboard setting are provided with through the space in the below of faller between spacing cardboard and the faller, and the at least part of first sword removes in order to collude line and/or trimming through the space to solve the problem that sewing machine production efficiency among the prior art is low.
Description
Technical Field
The utility model relates to the field of mechanical design, particularly, relate to a thread trimming mechanism and have its sewing machine.
Background
At present, the shearing mouths of the bottom thread and the upper thread in the sewing machine are far away from the needle plate hole, so that the residual overlong of the bottom thread and the upper thread on the sewing material after thread cutting needs to be manually cut twice, the labor intensity of workers is high, and the production efficiency of the sewing machine is reduced.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a main aim at provides a thread trimming mechanism and have its sewing machine to solve the problem that sewing machine production efficiency among the prior art is low.
In order to achieve the above object, according to an aspect of the present invention, there is provided a thread trimmer mechanism for trimming a bobbin thread and an upper thread of a sewing machine, the thread trimmer mechanism comprising: the first knife piece is provided with a line hooking part and can rotate around a preset axis so as to hook the bottom line and the upper line through the line hooking part; after the first knife piece is used for hooking the thread, at least part of the first knife piece moves towards the position close to the second knife piece until the thread hooking part is contacted with the blade of the second knife piece so as to carry out thread cutting; spacing cardboard, spacing cardboard setting are provided with through space between spacing cardboard and the faller in the below of faller, and at least part of first sword is in removing in order to collude line and/or trimming through the space.
Furthermore, a rotating shuttle boss is arranged on a rotating shuttle of the sewing machine; the thread trimming mechanism further comprises: the stop block is arranged on the side of the rotating shuttle, the limiting clamping plate comprises a stop plate, the stop plate is arranged opposite to the stop end face of the stop block, and at least part of the rotating shuttle boss is located between the stop plate and the stop end face so as to stop the rotating shuttle boss through the stop plate and the stop end face.
Further, spacing cardboard includes: the first plate body is at least partially lapped on the stop block; the first plate body is connected with the stop plate at one end far away from the stop block, so that a limit space for accommodating the rotating shuttle boss is formed among the stop plate, the first plate body and the stop end face.
Furthermore, a clamping piece is installed on the stopping block, a clamping gap is formed between the clamping end face of the stopping block and the clamping piece, and the first blade drives the bottom line to move along the surface of the limiting clamping plate until the bottom line moves into the clamping gap so as to clamp the bottom line.
Further, a preset distance is arranged between the clamping piece and the first plate body to form a passing space, and the passing space is communicated with the clamping gap, so that the bottom line slides into the clamping gap from the surface of the first plate body through the passing space.
Furthermore, one end of the clamping piece, which is close to the first plate body, is provided with a guide end face, and the guide end face extends along a preset track so as to guide the bottom line.
Further, spacing cardboard still includes: and one end, far away from the stop block, of the first plate body is connected with the second plate body through the stop plate so as to form a Z-shaped limiting clamping plate.
Further, the thread trimming mechanism further comprises: the first knife rest is arranged on the first knife rest and can rotate around the axis of a rotating shuttle of the sewing machine, and the first knife is connected with the first knife rest so as to drive the first knife to rotate around a preset axis through the first knife rest.
Further, the first blade includes: a first body rotating about a predetermined axis; the second body, collude the setting of line portion on the second body, the second body coupling is in the side of first body to constitute between first body and second body and dodge the space, dodge spacing cardboard with first blade rotation in-process.
According to another aspect of the utility model, a sewing machine is provided, including thread trimming mechanism, thread trimming mechanism is foretell thread trimming mechanism.
By applying the technical proposal of the utility model, the thread cutting mechanism is used for cutting the bottom thread and the upper thread of the sewing machine and sewing the sewing material by the cooperation of the bottom thread and the upper thread, wherein, the thread cutting mechanism comprises a first cutter, a second cutter and a limit clamp plate, the first cutter is provided with a thread hooking part, the first cutter is rotatablely arranged around a preset axis to hook the bottom thread and the upper thread by the thread hooking part, at least part of the second cutter is arranged below a needle plate of the sewing machine, after the thread hooking of the first cutter is finished, at least part of the first cutter moves towards the direction close to the second cutter until the thread hooking part is contacted with a cutting edge of the second cutter so as to carry out the thread cutting action, the limit clamp plate is arranged below the needle plate, a through space is arranged between the limit clamp plate and the needle plate, at least part of the first cutter moves in the through space so as to carry out the thread hooking and/or the thread cutting, the first cutter is movably arranged between the needle plate and the limit clamp plate, make the second cutter can stretch into the below of faller, be provided with the pinhole on the faller, make first cutter and second cutter can cut the line in the position that is close to the pinhole to make the length of remaining bottom line and facial suture shorten on the sewing material, need not to carry out the artifical line of cutting of secondary, improved sewing machine's production efficiency greatly.
Drawings
The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 shows a schematic structural view of an embodiment of a thread trimming mechanism according to the present invention;
fig. 2 shows an enlarged view of a part a of the thread trimming mechanism according to fig. 1;
fig. 3 shows a first usage state diagram of the thread trimming mechanism according to the present invention;
fig. 4 shows a second usage state diagram of the thread trimming mechanism according to the present invention;
fig. 5 shows a third state diagram of the thread trimming mechanism according to the present invention;
fig. 6 shows a fourth state diagram of the thread trimming mechanism according to the present invention;
fig. 7 shows a schematic structural view of an embodiment of a first insert according to the present invention; and
figure 8 shows a schematic structural view of an embodiment of a spacing clip according to the present invention.
Wherein the figures include the following reference numerals:
10. a first insert; 11. a hook line part; 12. a limiting part; 13. avoiding a space; 20. a second insert; 30. a limiting clamping plate; 31. passing through the space; 32. a limiting space; 33. a first plate body; 34. a second plate body; 35. a stopper plate; 40. a stop block; 41. a clamping piece; 50. a first tool apron; 60. a second tool apron; 1. a needle plate; 2. a rotating shuttle; 21. a rotating shuttle boss; 3. a support; 4. and (7) fixing the plate.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
The utility model provides a thread trimming mechanism please refer to fig. 1 to 8 for cut sewing machine's bottom line and upper thread, thread trimming mechanism includes: a first blade 10, the first blade 10 having a thread hooking portion 11 provided thereon, the first blade 10 being rotatably provided about a predetermined axis to hook the bobbin thread and the upper thread through the thread hooking portion 11; a second knife 20, at least part of the second knife 20 is arranged below the needle plate 1 of the sewing machine, after the thread hooking of the first knife 10 is completed, at least part of the first knife 10 moves towards the second knife 20 until the thread hooking part 11 is contacted with the blade of the second knife 20, so as to carry out thread cutting action; spacing cardboard 30, spacing cardboard 30 sets up in the below of faller 1, is provided with between spacing cardboard 30 and the faller 1 and passes through space 31, and at least part of first knife 10 removes in passing through space 31 so that collude line and/or trimming.
According to the utility model, the thread cutting mechanism is used for cutting the bottom thread and the upper thread of the sewing machine and sewing the sewing material by matching the bottom thread and the upper thread, wherein the thread cutting mechanism comprises a first cutter 10, a second cutter 20 and a limit clamping plate 30, a thread hooking part 11 is arranged on the first cutter 10, the first cutter 10 is rotatablely arranged around a preset axis to hook the bottom thread and the upper thread by the thread hooking part 11, at least part of the second cutter 20 is arranged below a needle plate 1 of the sewing machine, after the thread hooking of the first cutter 10 is completed, at least part of the first cutter 10 moves towards the direction close to the second cutter 20 until the thread hooking part 11 contacts with the cutting edge of the second cutter 20 to cut the thread, the limit clamping plate 30 is arranged below the needle plate 1, a passing space 31 is arranged between the limit clamping plate 30 and the needle plate 1, at least part of the first cutter 10 moves in the passing space 31 to hook the thread and/or cut the thread, through the movably setting of first cutter 10 between faller 1 and spacing cardboard 30, make second cutter 20 can stretch into the below of faller 1, be provided with the pinhole on the faller 1, make first cutter 10 and second cutter 20 can cut the line in the position that is close to the pinhole to make the length of remaining bottom line and upper thread shorten on the sewing material, need not to carry out the artifical line of cutting of secondary, improved sewing machine's production efficiency greatly.
As shown in fig. 2, a rotating shuttle boss 21 is provided on a rotating shuttle 2 of the sewing machine in order to effectively clamp the rotating shuttle boss 21; the thread trimming mechanism further comprises: the stop block 40, the stop block 40 sets up in the side of rotating shuttle 2, and spacing cardboard 30 includes backstop plate 35, and backstop plate 35 sets up with the backstop terminal surface of backstop block 40 relatively, and at least part of rotating shuttle boss 21 is located between backstop plate 35 and the backstop terminal surface to rotating shuttle boss 21 carries out the backstop through backstop plate 35 and backstop terminal surface, in order to prevent rotating shuttle boss 21 and deviate from, causes the trimming badly, strikes the location and colludes and cause the rotating shuttle to damage, unable normal sewing scheduling problem.
In order to further prevent the rotating shuttle boss 21 from being removed, the spacing catch plate 30 includes: the first plate body 33, at least a part of the first plate body 33 is lapped on the stop block 40, specifically, at least a part of the first plate body 33 is located above the stop block 40 and is in contact with the stop block 40; wherein, the end of the first plate body 33 far away from the stop block 40 is connected with the stop plate 35, so as to form a limit space 32 for accommodating the rotating shuttle boss 21 among the stop plate 35, the first plate body 33 and the stop end surface.
As shown in fig. 4, the holding piece 41 is installed on the stopping block 40, a holding gap is provided between the holding end surface of the stopping block 40 and the holding piece 41, and the first knife 10 drives the bottom line to move along the surface of the limiting clamping plate 30 until the bottom line moves into the holding gap, so as to hold the bottom line and facilitate trimming.
In specific implementation, a predetermined distance is arranged between the clamping piece 41 and the first plate body 33 to form a passing space, the passing space is communicated with the clamping gap, so that the bottom line slides from the surface of the first plate body 33 into the clamping gap through the passing space, the structure is simple, the first plate body 33 is positioned above the stop block 40, therefore, a height difference exists between the first plate body 33 and the stop block 40, and the bottom line can move along the surface of the first plate body 33 and is clamped by directly moving into the clamping gap through the space after the bottom line is hooked by the first knife 10 because the bottom line is always in a tensioned state.
Preferably, one end of the clamping piece 41 close to the first plate 33 is provided with a guiding end surface, and the guiding end surface extends along a predetermined track to guide the bottom line, and simultaneously, the bottom line is prevented from being hooked by the clamping piece 41 in the moving process to influence the line cutting; wherein, the clamping piece 41 is movably installed on the stopper 40 to adjust the size of the clamping gap to adjust the clamping force to the bobbin thread.
Specifically, the limiting clamping plate 30 further comprises: one end, far away from the stop block 40, of the first plate body 33 is connected with the second plate body 34 through the stop plate 35 to form a Z-shaped limit clamping plate 30; the thread trimming mechanism further comprises: the fixing plate 4 is provided with mounting holes on the second plate body 34, the fixing plate 4 is provided with connecting holes, and the connecting piece sequentially penetrates through the mounting holes and the connecting holes to install the limiting clamping plate 30 on the fixing plate 4.
In the embodiment provided by the utility model, the thread trimming mechanism still includes: a first knife rest 50, the first knife 10 is installed on the first knife rest 50, the first knife rest 50 is rotatably arranged around the axis of the rotary shuttle 2 of the sewing machine, the first knife 10 is connected with the first knife rest 50, so as to drive the first knife 10 to rotate around the preset axis through the first knife rest 50; and a second tool rest 60 on which at least a portion of the second tool 20 is mounted to support the second tool 20 by the second tool rest 60, wherein the second tool 20 is movably disposed on the second tool rest 60 to be close to or far from the first tool 10.
As shown in FIG. 7, the first blade 10 includes: a first body rotating about a predetermined axis; the line hooking part 11 is arranged on the second body, and the second body is connected to the side of the first body so as to form an avoiding space 13 between the first body and the second body and avoid the limiting clamping plate 30 in the rotating process of the first cutter 10; wherein, the first knife 10 is further provided with a limiting part 12, the limiting part 12 is arranged on the side of the line hooking part 11, preferably, the limiting part 12 is a limiting groove, and the first knife 10 makes the bottom line in the limiting groove to prevent the bottom line from moving on the first knife 10 in the process of rotating around a preset axis in the direction close to the second knife 20 after the bottom line is hooked
In the specific implementation process, the first knife 10 firstly rotates around the direction of the preset axis facing away from the second knife 20 to hook the bottom line, and after the bottom line is hooked, the rotating shuttle continuously rotates to enable the bottom line and the surface line to form a line ring, the first knife 10 rotates towards the direction close to the second knife 20 to hook the surface line, and the first knife 10 continues to rotate until the first knife contacts with the cutting edge of the second knife 20 to complete the line cutting action.
The utility model also provides a sewing machine, including thread trimming mechanism, thread trimming mechanism is the thread trimming mechanism of above-mentioned embodiment.
Specifically, the sewing machine further comprises a support 3, and at least part of the thread trimming mechanism is mounted on the support 3.
From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects:
according to the utility model, the thread cutting mechanism is used for cutting the bottom thread and the upper thread of the sewing machine and sewing the sewing material by matching the bottom thread and the upper thread, wherein the thread cutting mechanism comprises a first cutter 10, a second cutter 20 and a limit clamping plate 30, a thread hooking part 11 is arranged on the first cutter 10, the first cutter 10 is rotatablely arranged around a preset axis to hook the bottom thread and the upper thread by the thread hooking part 11, at least part of the second cutter 20 is arranged below a needle plate 1 of the sewing machine, after the thread hooking of the first cutter 10 is completed, at least part of the first cutter 10 moves towards the direction close to the second cutter 20 until the thread hooking part 11 contacts with the cutting edge of the second cutter 20 to cut the thread, the limit clamping plate 30 is arranged below the needle plate 1, a passing space 31 is arranged between the limit clamping plate 30 and the needle plate 1, at least part of the first cutter 10 moves in the passing space 31 to hook the thread and/or cut the thread, through the movably setting of first cutter 10 between faller 1 and spacing cardboard 30, make second cutter 20 can stretch into the below of faller 1, be provided with the pinhole on the faller 1, make first cutter 10 and second cutter 20 can cut the line in the position that is close to the pinhole to make the length of remaining bottom line and upper thread shorten on the sewing material, need not to carry out the artifical line of cutting of secondary, improved sewing machine's production efficiency greatly.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a thread cutting mechanism for cut bottom line and the upper thread of sewing machine, its characterized in that, thread cutting mechanism includes:
the first knife piece (10), a line hooking part (11) is arranged on the first knife piece (10), and the first knife piece (10) can be rotatably arranged around a preset axis so as to hook a bottom line and an upper line through the line hooking part (11);
the second knife piece (20), at least part of the second knife piece (20) is arranged below a needle plate (1) of the sewing machine, after the first knife piece (10) finishes hooking, at least part of the first knife piece (10) moves towards the second knife piece (20) until the hooking part (11) is contacted with the cutting edge of the second knife piece (20) so as to carry out a thread cutting action;
the limiting clamping plate (30) is arranged below the needle plate (1), a passing space (31) is arranged between the limiting clamping plate (30) and the needle plate (1), and at least part of the first cutter (10) moves in the passing space (31) to hook and/or cut lines.
2. The thread trimming mechanism according to claim 1, wherein a rotating shuttle boss (21) is provided on the rotating shuttle (2) of the sewing machine; the thread trimming mechanism further comprises:
the rotating shuttle limiting clamp plate comprises a stop block (40), the stop block (40) is arranged on the side of the rotating shuttle (2), the limiting clamp plate (30) comprises a stop plate (35), the stop plate (35) is arranged opposite to the stop end surface of the stop block (40), and at least part of the rotating shuttle boss (21) is positioned between the stop plate (35) and the stop end surface so as to stop the rotating shuttle boss (21) through the stop plate (35) and the stop end surface.
3. The thread trimming mechanism according to claim 2, wherein the retaining catch plate (30) comprises:
a first plate body (33), wherein at least part of the first plate body (33) is lapped on the stop block (40);
wherein one end of the first plate body (33) far away from the stop block (40) is connected with the stop plate (35) so as to form a limit space (32) used for accommodating the rotating shuttle boss (21) among the stop plate (35), the first plate body (33) and the stop end surface.
4. The thread trimming mechanism according to claim 3, wherein a clamping piece (41) is mounted on the stop block (40), a clamping gap is provided between a clamping end surface of the stop block (40) and the clamping piece (41), and the first knife (10) drives the bobbin thread to move along the plate surface of the limiting clamping plate (30) until the bobbin thread moves into the clamping gap to clamp the bobbin thread.
5. The thread trimming mechanism according to claim 4, wherein a predetermined distance is provided between the clamping piece (41) and the first plate (33) to form a passing space, the passing space communicating with the clamping gap, so that the bobbin thread slides from the surface of the first plate (33) into the clamping gap through the passing space.
6. The thread trimming mechanism according to claim 4, wherein the end of the holding tab (41) adjacent to the first plate (33) has a guiding end surface extending along a predetermined trajectory for guiding the bobbin thread.
7. The thread trimming mechanism according to claim 3, wherein the limiting catch plate (30) further comprises:
and one end, far away from the stop block (40), of the first plate body (33) is connected with the second plate body (34) through the stop plate (35) to form a Z-shaped limit clamping plate (30).
8. The thread trimming mechanism of claim 1, further comprising:
the first cutter holder (50), the first cutter (10) is installed on the first cutter holder (50), the first cutter holder (50) is rotatably arranged around the axis of a rotating shuttle (2) of the sewing machine, and the first cutter (10) is connected with the first cutter holder (50) so as to drive the first cutter (10) to rotate around the preset axis through the first cutter holder (50).
9. The thread trimming mechanism according to claim 1, wherein the first knife element (10) comprises:
a first body that rotates about a predetermined axis;
the second body, the part of colluding (11) sets up on the second body, the second body is connected the side of first body to constitute between first body and the second body and dodge space (13), in order to dodge in first sword spare (10) rotation process spacing cardboard (30).
10. A sewing machine including a thread trimming mechanism, wherein the thread trimming mechanism is as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920857869.6U CN210438942U (en) | 2019-06-06 | 2019-06-06 | Thread trimming mechanism and sewing machine with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920857869.6U CN210438942U (en) | 2019-06-06 | 2019-06-06 | Thread trimming mechanism and sewing machine with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210438942U true CN210438942U (en) | 2020-05-01 |
Family
ID=70402973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920857869.6U Withdrawn - After Issue CN210438942U (en) | 2019-06-06 | 2019-06-06 | Thread trimming mechanism and sewing machine with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210438942U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114059242A (en) * | 2020-07-31 | 2022-02-18 | 浙江中捷缝纫科技有限公司 | Thread trimming mechanism and sewing machine with same |
-
2019
- 2019-06-06 CN CN201920857869.6U patent/CN210438942U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114059242A (en) * | 2020-07-31 | 2022-02-18 | 浙江中捷缝纫科技有限公司 | Thread trimming mechanism and sewing machine with same |
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| GR01 | Patent grant | ||
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| AV01 | Patent right actively abandoned |
Granted publication date: 20200501 Effective date of abandoning: 20210331 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20200501 Effective date of abandoning: 20210331 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |