CN220665646U - Anticreep line guide piece and sewing machine thread trimming structure - Google Patents
Anticreep line guide piece and sewing machine thread trimming structure Download PDFInfo
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- CN220665646U CN220665646U CN202322039617.1U CN202322039617U CN220665646U CN 220665646 U CN220665646 U CN 220665646U CN 202322039617 U CN202322039617 U CN 202322039617U CN 220665646 U CN220665646 U CN 220665646U
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- 238000009958 sewing Methods 0.000 title claims abstract description 114
- 238000009966 trimming Methods 0.000 title claims description 6
- 230000000903 blocking effect Effects 0.000 claims abstract description 42
- 230000002265 prevention Effects 0.000 claims 1
- 238000009434 installation Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Abstract
The technical scheme belongs to the technical field of sewing machine accessories, and particularly relates to an anti-drop thread guide piece and a sewing machine thread cutting structure, which are used for being arranged on the thread cutting structure of the sewing machine and matched with the thread cutting structure to cut the sewing thread, and the sewing machine thread cutting structure comprises: an arc-shaped main body portion; a mounting part arranged at the rear end of the arc-shaped main body part and used for being mounted on a sewing machine; a blocking portion provided on the arc-shaped body portion and for blocking the sewing thread; a guide portion provided at a front end of the blocking portion and for guiding the sewing thread into the blocking portion; wherein, the blocking portion includes: the front end of the first edge is connected with the guide part; the front end of the second edge is connected with the first edge, and the rear end of the second edge is connected with the arc-shaped main body part; the included angle between the first edge and the second edge is an obtuse angle, the guide part is provided with an arc guide edge, and the lower end of the arc guide edge is connected with the first edge; the guide part, the blocking part, the arc-shaped main body part and the mounting part are integrally formed, and the utility model can ensure that the sewing thread accurately enters the cutting edge of the movable cutter.
Description
Technical Field
The technical scheme relates to the technical field of sewing machine accessories, in particular to an anti-thread-off guide piece and a sewing machine thread-cutting structure.
Background
A Sewing machine (Sewing machine) is a machine that uses one or more Sewing threads to form one or more stitches on a material to interweave or stitch one or more layers of the material, and requires a plurality of parts to cooperate when the machine is in operation, wherein one part is a thread cutting structure for cutting the Sewing thread when the Sewing is completed, and leaving a surplus thread.
The existing thread cutting structure of the sewing machine is provided with a movable cutter, a fixed cutter, a rotating shuttle and a guide piece, wherein the rotating shuttle drives the movable cutter to move towards the fixed cutter, the guide piece is used for guiding a sewing thread between the movable cutter and the fixed cutter, the guide piece structure is shown in an attached drawing 1, the guide piece comprises a guide part and a blocking part, the blocking part is connected to the rear end of the guide part, and the guide piece has the following defects in practical application:
1. when cutting the sewing thread, the sewing thread moves along the guide part to directly enter the blocking part, the sewing thread is cut off at the blocking part, the residual thread left by the cutting mode is overlong, the secondary sewing is not facilitated, if the blocking part is lifted to be close to the guide part directly, the mutual interference between the guide piece and other thread cutting parts can be caused, the normal use of equipment is influenced, meanwhile, the blocking part is horizontally arranged, and when the thread head driven knife is pulled, the follow-up knife cannot slide at the blocking part, so that the stitch of the sewing surface is tightened, and the sewing quality is influenced.
2. When cutting the sewing thread, the sewing thread is pulled out and moves to the outside of the guide piece after being separated from the guide part, so that the movable knife cannot cut the sewing thread.
Disclosure of Invention
The technical scheme aims to provide the anti-drop thread guide piece and the thread cutting structure of the sewing machine, and the problems of instability and overlong or too short residual stitch during cutting of the sewing thread are solved through the control of the guide part and the blocking part of the anti-drop thread guide piece on the motion state of the sewing thread.
The technical scheme aims at realizing the following steps:
an anticreep line guide piece for install on sewing machine's thread cutting structure, cooperate thread cutting structure to cut the line to the sewing thread, include: an arc-shaped main body portion; a mounting part arranged at the rear end of the arc-shaped main body part and used for being mounted on a sewing machine; a blocking portion provided on the arc-shaped body portion and for blocking the sewing thread; a guide portion provided at a front end of the blocking portion and for guiding the sewing thread into the blocking portion;
wherein, the blocking portion includes: the front end of the first edge is connected with the guide part; the front end of the second edge is connected with the first edge, and the rear end of the second edge is connected with the arc-shaped main body part; and the included angle between the first edge and the second edge is an obtuse angle.
Preferably, the guide part is provided with an arc-shaped guide edge, and the lower end of the arc-shaped guide edge is connected with the first edge; the guide part, the blocking part, the arc-shaped main body part and the mounting part are integrally formed.
A sewing machine thread cutting structure comprising: a sewing table surface on which a sewing machine is arranged; an anti-drop thread guide piece arranged on the sewing table surface; the rotating module is arranged below the sewing table top and is used for driving the rotating shuttle and the moving knife to move; the rotating shuttle is arranged at the output end of the rotating shaft of the rotating module and is used for pulling the sewing thread; the movable knife is arranged above the rotating shaft output end of the rotating module and the anti-falling thread guide piece and is used for cutting the sewing thread in cooperation with the fixed knife; and the fixed knife is arranged on the sewing table surface.
Preferably, the cutting edge of the movable blade is located at the inner side of the guide part.
Preferably, the sewing thread passes through the cutting edge of the movable knife and enters a through hole surrounded by the movable knife and the anti-drop thread guide piece; when the movable knife moves the cutting wire towards the fixed knife, the sewing wire enters the blocking part from the guiding part and is lapped on the first edge.
Compared with the prior art, the technical scheme has the advantages that:
1. the guide portion that this technical scheme designed leads the sewing thread to the blocking portion, and the blocking portion has edge one and edge two that the ladder set up, and the sewing thread overlap joint is cut on edge one, and original trimming length is the length of sewing face to blade, and current trimming length is the length of sewing face to edge one and edge one to blade, and this length is more suitable.
2. According to the technical scheme, the blocking part can be used for cutting the sewing thread according to the reserved length, when the sewing thread is pulled, the guiding part slides towards the blocking part, and when the movable cutter is abutted against the fixed cutter, most of the sewing thread is lapped on the first edge, and the most of the sewing thread does not exceed the inflection points of the first edge and the second edge.
Drawings
Fig. 1 is a schematic structural diagram of an original guide sheet in the background art.
Fig. 2 is a schematic structural view of the anti-drop wire guide tab.
Fig. 3 is a schematic structural view of a thread cutting structure of the sewing machine.
Fig. 4 is a schematic structural view of the stationary blade and the movable blade when they are engaged.
Fig. 5 is a schematic view of the structure of the front surface of the anti-drop wire guide piece and the movable knife when being matched.
Fig. 6 is a schematic view of the structure of the back surface of the anti-drop wire guide piece when being matched with the movable knife.
Reference numerals: 1. an arc-shaped main body portion; 2. a mounting part; 3. a blocking portion; 31. an edge I; 32. an edge II; 4. a guide section; 41. an arc-shaped guide edge; 5. a rotating module; 6. a rotating shuttle; 7. a movable knife; 8. a fixed cutter; 9. a cutting edge; 10. and (5) sewing threads.
Detailed Description
The following describes the specific embodiments of the present technical solution in further detail with reference to the accompanying drawings.
An anti-thread-off guide piece for installing on a thread cutting structure of a sewing machine, cutting a thread of a sewing thread 10 in cooperation with the thread cutting structure, comprising: an arc-shaped main body part 1; a mounting portion 2 provided at the rear end of the arc-shaped main body portion 1 and for mounting on a sewing machine; a blocking portion 3 provided on the arc-shaped body portion 1 and for blocking the sewing thread 10; a guide portion 4 provided at a front end of the blocking portion 3 for guiding the sewing thread 10 into the blocking portion 3; wherein the blocking part 3 comprises: edge one 31, its front end connects the guide part 4; the front end of the second edge 32 is connected with the first edge 31, and the rear end of the second edge is connected with the arc-shaped main body part 1; the included angle between the first edge 31 and the second edge 32 is an obtuse angle, the guide part 4 is provided with an arc-shaped guide edge 41, and the lower end of the arc-shaped guide edge 41 is connected with the first edge 31; the guide part 4, the blocking part 3, the arc-shaped main body part 1 and the mounting part 2 are integrally formed. As shown in fig. 2, the installation portion 2 on the anti-drop thread guiding piece is provided with a screw hole, the anti-drop thread guiding piece is installed on the thread cutting structure through the screw hole, the installation portion 2 is horizontally arranged, the arc-shaped main body portion 1 is arranged at the end side of the installation portion 2, the arc-shaped main body portion is matched with the arc-shaped outline of the rotating shuttle 6, the blocking portion 3 and the guiding portion 4 are sequentially connected to the arc-shaped main body portion 1 along the arc, the position of the anti-drop thread guiding piece is arranged above the rotating shuttle 6, the arc-shaped guiding edge 41 of the guiding portion 4 is connected with the edge second 32 through the first edge 31, the joint of the arc-shaped guiding edge 41 and the first edge 31 is the first inflection point, the joint of the first edge 31 and the second edge 32 is the second inflection point, when the thread cutting structure works, the sewing thread 10 is pulled to reach the first inflection point, then is arranged on the first edge 31, namely the sewing thread 10 is cut between the first inflection point and the second inflection point, and the cut sewing thread 10 has a reserved length which is suitable for use.
A sewing machine thread cutting structure comprising: a sewing table surface on which a sewing machine is arranged; an anti-drop thread guide piece arranged on the sewing table surface; the rotating module 5 is arranged below the sewing table and is used for driving the rotating shuttle 6 and the moving knife 7 to move; a rotating shuttle 6 which is arranged at the output end of the rotating shaft of the rotating module 5 and is used for pulling the sewing thread 10; the movable knife 7 is arranged above the rotating shaft output end of the rotating module 5 and the anti-drop thread guide piece and is used for cutting the sewing thread 10 by matching with the fixed knife 8; a stationary knife 8 arranged on the sewing table; the cutting edge 9 of the movable knife 7 is positioned on the inner side of the guide part 4; the sewing thread passes through the cutting edge of the movable cutter and enters a through hole surrounded by the movable cutter and the anti-drop thread guide piece; when the movable knife moves the cutting wire towards the fixed knife, the sewing wire enters the blocking part from the guiding part and is lapped on the first edge. As shown in fig. 3-6, the thread cutting structure is arranged on a sewing table with a window, the window is a position for sewing a sewing needle, the rotating module 5 is arranged below the sewing table, the specific working principle of the thread cutting structure can be seen in chinese patent CN106868735a, too many details are not needed here, when the thread cutting structure works, a sewing thread 10 passes through the cutting edge 9 of the movable blade 7 and enters a through hole surrounded by the movable blade 7 and the anti-drop thread guiding piece, when the movable blade 7 moves to the fixed blade 8 to cut the thread, the sewing thread 10 passes through the guiding part 4 and enters the blocking part 3 and is lapped on the edge 31, the rotating module 5 is used for providing power support for the work of the rotating shuttle 6 and the movable blade 7, the fixed blade 8, the movable blade 7, the guiding piece and the rotating shuttle 6 are sequentially arranged from top to bottom, the sewing needle is provided with an upper thread, when the thread cutting is needed, the sewing needle is arranged above the thread cutting structure, the sewing thread 10 firstly passes through the lower part of the cutting edge 9 upwards, then is erected in a thread groove arranged at the side of the cutting edge 9, then naturally descends and is connected with the sewing surface, the guide piece is used for guiding the sewing thread 10 between the movable cutter 7 and the sewing surface, when the fixed cutter 8 is arranged at the initial position, the cutting edge 9 and the inflection point I are positioned on the same vertical line, as the guide part 4 is arranged at the outer side of the cutting edge 9, the sewing thread 10 is driven by the movable cutter 7, the guide part 4 and the movable cutter 7 cooperate to limit the sewing thread 10 and can guide the sewing thread 10 to preferentially reach the guide part 4 and then move to the inflection point I, the position where the movable cutter 7 and the guide piece are arranged is the upper and lower direction, the gap between the two is the space for the sewing thread 10 to walk, when the movable cutter 7 rotates towards the fixed cutter 8, the sewing thread 10 is pulled to move from the inflection point I to the edge 31, at this time, the sewing thread 10 is laterally deviated from the initial position by a distance, and the moving knife 7 is not deviated by a distance, so that the sewing thread 10 receives a pulling force pulled downward by the sewing surface and a laterally supporting force generated by the edge one 31 on the sewing thread 10, so that the sewing thread 10 moves to the inflection point two at most, and does not move continuously along the edge two 32, the sewing thread 10 is cut when being erected on the edge one 31, the thread cutting is completed, the guide piece passes through an obtuse angle structure arranged on the edge one 31 and the edge two 32, the thread breaking position can be ensured to be between the inflection point one and the inflection point two, and therefore, the reserved cutting length can be controlled to reach the standard required by a user.
The foregoing shows and describes the basic principles and main features of the present technical solution and the advantages of the present technical solution. It will be appreciated by persons skilled in the art that the present utility model is not limited to the embodiments described above, and that the embodiments and descriptions described herein are merely illustrative of the principles of the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model, which is defined by the appended claims. The scope of protection of the technical solution is defined by the appended claims and equivalents thereof.
Claims (5)
1. An anti-drop thread guiding piece for install on sewing machine's thread cutting structure, cooperate thread cutting structure to cut the line of sewing thread (10), its characterized in that includes:
an arc-shaped main body part (1);
a mounting part (2) which is arranged at the rear end of the arc-shaped main body part (1) and is used for being mounted on a sewing machine;
a blocking portion (3) provided on the arc-shaped main body portion (1) and for blocking the sewing thread (10);
a guide part (4) which is arranged at the front end of the blocking part (3) and is used for guiding the sewing thread (10) to enter the blocking part (3);
wherein the blocking portion (3) includes:
an edge I (31), the front end of which is connected with the guide part (4);
the front end of the second edge (32) is connected with the first edge (31), and the rear end of the second edge is connected with the arc-shaped main body part (1);
the included angle between the first edge (31) and the second edge (32) is an obtuse angle.
2. The anti-drop wire guide tab of claim 1, wherein: the guide part (4) is provided with an arc-shaped guide edge (41), and the lower end of the arc-shaped guide edge (41) is connected with the first edge (31);
the guide part (4), the blocking part (3), the arc-shaped main body part (1) and the mounting part (2) are integrally formed.
3. A thread cutting structure of a sewing machine, comprising:
a sewing table surface on which a sewing machine is arranged;
the thread-off prevention guide piece according to any one of claims 1 to 2, which is provided on a sewing table;
the rotating module (5) is arranged below the sewing table top and is used for driving the rotating shuttle (6) and the moving knife (7) to move;
the rotating shuttle (6) is arranged at the output end of the rotating shaft of the rotating module (5) and is used for pulling the sewing thread (10);
the movable knife (7) is arranged above the rotating shaft output end of the rotating module (5) and the anti-drop thread guide piece and is used for cutting the sewing thread (10) by matching with the fixed knife (8);
and a stationary knife (8) arranged on the sewing table.
4. A sewing machine thread trimming structure as recited in claim 3, wherein: the cutting edge (9) of the movable knife (7) is positioned at the inner side of the guide part (4).
5. A sewing machine thread trimming structure as recited in claim 3, wherein: the sewing thread (10) passes through the cutting edge (9) of the movable cutter (7) and enters a through hole surrounded by the movable cutter (7) and the anti-drop thread guide piece;
when the movable knife (7) moves towards the fixed knife (8), the sewing thread (10) enters the blocking part (3) from the guide part (4) and is lapped on the first edge (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322039617.1U CN220665646U (en) | 2023-07-31 | 2023-07-31 | Anticreep line guide piece and sewing machine thread trimming structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322039617.1U CN220665646U (en) | 2023-07-31 | 2023-07-31 | Anticreep line guide piece and sewing machine thread trimming structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220665646U true CN220665646U (en) | 2024-03-26 |
Family
ID=90335860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322039617.1U Active CN220665646U (en) | 2023-07-31 | 2023-07-31 | Anticreep line guide piece and sewing machine thread trimming structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220665646U (en) |
-
2023
- 2023-07-31 CN CN202322039617.1U patent/CN220665646U/en active Active
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