CN113699705A - Thread clamping structure and sewing machine with same - Google Patents
Thread clamping structure and sewing machine with same Download PDFInfo
- Publication number
- CN113699705A CN113699705A CN202010432765.8A CN202010432765A CN113699705A CN 113699705 A CN113699705 A CN 113699705A CN 202010432765 A CN202010432765 A CN 202010432765A CN 113699705 A CN113699705 A CN 113699705A
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- Prior art keywords
- clamping
- thread
- plate
- compression spring
- assembly
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B47/00—Needle-thread tensioning devices; Applications of tensometers
- D05B47/04—Automatically-controlled tensioning devices
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B65/00—Devices for severing the needle or lower thread
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The invention provides a thread clamping structure and a sewing machine with the same, wherein the thread clamping structure is arranged on a machine body of the sewing machine and comprises: the sewing machine comprises a first thread clamping assembly, a second thread clamping assembly and a control device, wherein the first thread clamping assembly is provided with a first clamping space for clamping sewing threads, and at least part of the first thread clamping assembly is movably arranged so as to adjust the size of the first clamping space; the second thread clamping assembly is located on the side of the first thread clamping assembly and provided with a second clamping space, and at least part of the second thread clamping assembly is movably arranged to adjust the size of the second clamping space, so that the problem that the tension of a sewing thread is too large when the sewing machine in the prior art cuts the thread is solved.
Description
Technical Field
The invention relates to the field of sewing machines, in particular to a thread clamping structure and a sewing machine with the same.
Background
At present, in a sewing machine, two thread clamping parts are provided in the thread cutting process, as shown in fig. 1 and 2, one is a main thread clamping device 100, and the other is an auxiliary thread clamping device 200, and when a sewing thread is cut, generally, the sewing machine adopts the main thread clamping device 100 to loosen the thread, and the auxiliary thread clamping device 200 keeps clamping the sewing thread.
However, in the above-mentioned solution, since the auxiliary thread cutting device has a certain clamping function on the sewing thread during thread cutting, the tension of the sewing thread during thread cutting is unstable, and further the length of the following sewing thread after thread cutting is unstable or the sewing thread is broken in advance due to excessive tension, thereby causing thread breakage during sewing.
Disclosure of Invention
The invention mainly aims to provide a thread clamping structure and a sewing machine with the same, and aims to solve the problem that the tension of a sewing thread is too large when the sewing machine in the prior art cuts the thread.
In order to achieve the above object, according to one aspect of the present invention, there is provided a thread tension structure installed on a body of a sewing machine, the thread tension structure including: the sewing machine comprises a first thread clamping assembly, a second thread clamping assembly and a control device, wherein the first thread clamping assembly is provided with a first clamping space for clamping sewing threads, and at least part of the first thread clamping assembly is movably arranged so as to adjust the size of the first clamping space; the second wire clamping assembly is positioned on the side of the first wire clamping assembly and provided with a second clamping space, and at least part of the second wire clamping assembly is movably arranged so as to adjust the size of the second clamping space.
Further, the second thread tension assembly is installed at a first side of the installation plate of the sewing machine, and the second thread tension assembly further includes: the third clamping plate and the fourth clamping plate are oppositely arranged to form a second clamping space between the third clamping plate and the fourth clamping plate; the electromagnetism subassembly, the second side at the mounting panel is installed to the at least part of electromagnetism subassembly, and the electromagnetism subassembly has the carriage release lever, and it is relative with the fourth clamp after the at least part of carriage release lever passes the mounting panel, and the carriage release lever moves towards the direction that is close to or keeps away from the fourth clamp under the effect of electromagnetic force to promote the direction removal that the third clamp was kept away from to the fourth clamp orientation.
Further, the electromagnetic assembly further comprises: the electro-magnet, the electro-magnet is installed in the second side of mounting panel, has the iron core in the electro-magnet, and the carriage release lever is connected with the iron core to drive the carriage release lever through the iron core and remove.
Further, the second wire clamping assembly further comprises: the compression spring plate is arranged on the surface, away from the third clamping plate, of the fourth clamping plate, the compression spring plate is abutted to the fourth clamping plate, and at least part of the movable rod penetrates through the fourth clamping plate and then is opposite to the compression spring plate.
Further, the second wire clamping assembly further comprises: the mounting component is installed on the mounting panel, and third clamp and fourth clamp all overlap and establish on the mounting component, are provided with on the mounting component and pass the hole, and at least part of carriage release lever passes and passes behind the hole relative with the compression spring board.
Further, the mounting member includes a first portion and a second portion connected in series, the first portion being mounted on the mounting plate, the first portion being disposed through the hole, and the compression spring plate being mounted on the second portion.
Furthermore, the second part is provided with a guide opening, the extension direction of the guide opening is consistent with the extension direction of the second part, and at least part of the compression spring plate penetrates through the guide opening and then is connected with the second part, so that the compression spring plate moves along the extension direction of the guide opening.
Further, the second wire clamping assembly further comprises: the adjusting component is arranged at the end part of the mounting component and is movably arranged along the extending direction of the mounting component; and the first end of the elastic component is connected with the adjusting component, and the second end of the elastic component is connected with the pressure spring plate, so that when the moving rod moves towards the direction far away from the pressure spring plate, the elastic force of the elastic component is utilized to push the pressure spring plate to move towards the direction close to the fourth clamping plate, and the pressure spring plate pushes the fourth clamping plate to move towards the direction close to the third clamping plate.
Further, the adjusting part is an adjusting nut, and the adjusting nut is in threaded connection with the mounting part.
According to another aspect of the present invention, there is provided a sewing machine comprising a thread clamping structure, wherein the thread clamping structure is the above thread clamping structure.
By applying the technical scheme of the invention, the thread clamping structure is arranged on a machine body of the sewing machine, wherein the thread clamping structure comprises a first thread clamping component and a second thread clamping component, the first thread clamping component is provided with a first clamping space for clamping the sewing thread, and at least part of the first thread clamping component is movably arranged so as to adjust the size of the first clamping space; the second wire clamping assembly is located on the side of the first wire clamping assembly and provided with a second clamping space, and at least part of the second wire clamping assembly is movably arranged so as to adjust the size of the second clamping space. Through the cooperation in first centre gripping space and second centre gripping space, when needs centre gripping sewing thread, first thread clamping component and second thread clamping component keep the centre gripping state simultaneously, when needs cut the sewing thread, press from both sides the line subassembly through first thread clamping component and second and release the sewing thread simultaneously to avoid the too big tension of sewing thread, cause the problem of broken string in advance.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, 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 front view of a prior art clip line construction;
FIG. 2 shows a side view of a prior art clip line construction;
FIG. 3 shows a front view of a wire clamping structure according to the present invention;
fig. 4 shows a wire clamping state diagram of the wire clamping structure according to the present invention; and
fig. 5 shows a loose state diagram of the thread clamping structure according to the present invention.
Wherein the figures include the following reference numerals:
1. a first wire clamping assembly; 10. a first clamping space; 11. a first clamping plate; 12. a second clamping plate;
2. a second wire clamping assembly; 20. a second clamping space; 3. mounting a plate; 21. a third wire clamping plate; 22. a fourth wire clamping plate; 4. an electromagnetic assembly; 40. a travel bar; 41. an electromagnet; 42. an iron core; 23. a compression spring plate; 24. a mounting member; 240. a guide opening; 25. an adjustment member; 26. an elastic member.
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 embodiments with reference to the attached drawings.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The present invention provides a thread clamping structure, please refer to fig. 3 to 5, installed on a sewing machine body, the thread clamping structure includes: a first thread clamping assembly 1, wherein the first thread clamping assembly 1 is provided with a first clamping space 10 for clamping sewing threads, and at least part of the first thread clamping assembly 1 is movably arranged so as to adjust the size of the first clamping space 10; and the second wire clamping component 2 is positioned at the side of the first wire clamping component 1, the second wire clamping component 2 is provided with a second clamping space 20, and at least part of the second wire clamping component 2 is movably arranged so as to adjust the size of the second clamping space 20.
The thread clamping structure provided by the invention is arranged on a machine body of a sewing machine, wherein the thread clamping structure comprises a first thread clamping assembly 1 and a second thread clamping assembly 2, the first thread clamping assembly 1 is provided with a first clamping space 10 for clamping the sewing thread, and at least part of the first thread clamping assembly 1 is movably arranged to adjust the size of the first clamping space 10; the second wire clamping assembly 2 is located at the side of the first wire clamping assembly 1, the second wire clamping assembly 2 is provided with a second clamping space 20, and at least part of the second wire clamping assembly 2 is movably arranged to adjust the size of the second clamping space 20. Through the cooperation of first centre gripping space 10 and second centre gripping space 20, when needing the centre gripping sewing thread, first thread clamping component 1 and second thread clamping component 2 keep the centre gripping state simultaneously, when needs cut the sewing thread, release the sewing thread simultaneously through first thread clamping component 1 and second thread clamping component 2 to avoid the tension of sewing thread too big, cause the problem of broken string in advance.
Specifically, the second thread tension assembly 2 is installed at a first side of the installation plate 3 of the sewing machine, and the second thread tension assembly 2 further includes: the third clamping plate 21 and the fourth clamping plate 22 are oppositely arranged, so that a second clamping space 20 is formed between the third clamping plate 21 and the fourth clamping plate 22; the electromagnet assembly 4 is arranged on the second side of the mounting plate 3, at least part of the electromagnet assembly 4 is arranged on the second side of the mounting plate 3, the electromagnet assembly 4 is provided with a moving rod 40, at least part of the moving rod 40 is opposite to the fourth clamping plate 22 after penetrating through the mounting plate 3, and the moving rod 40 moves towards the direction close to or far away from the fourth clamping plate 22 under the action of electromagnetic force so as to push the fourth clamping plate 22 to move towards the direction far away from the third clamping plate 21. The simple structure that sets up like this can come whether control movable rod 40 removes through whether circular telegram to electromagnetic component 4, need not to set up complicated driver part like driving motor, has saved sewing machine's installation space, and electromagnetic component 4 need not to set up lubricating oil, has guaranteed sewing machine's clean and tidy effectively.
In particular implementation, the electromagnetic assembly 4 further comprises: an electromagnet 41, the electromagnet 41 is installed on the second side of the mounting plate 3, an iron core 42 is provided in the electromagnet 41, and the moving rod 40 is connected with the iron core 42 to move the moving rod 40 through the iron core 42.
In order to facilitate the control of the size of the second clamping space 20, the second wire clamping assembly 2 further comprises: the compression spring plate 23 is arranged on the surface, away from the third clamping plate 21, of the fourth clamping plate 22, the compression spring plate 23 is abutted to the fourth clamping plate 22, and at least part of the movable rod 40 penetrates through the fourth clamping plate 22 and then is opposite to the compression spring plate 23. The arrangement can ensure that the second clamping space 20 cannot be too large to cause the sewing thread to be separated, and the purpose of loosening the sewing thread can be achieved only by reducing or eliminating the pressure applied to the fourth clamping plate 22 by the compression spring plate 23.
In the embodiment provided by the present invention, the second wire clamping assembly 2 further includes: the mounting part 24 is mounted on the mounting plate 3, the third clamping plate 21 and the fourth clamping plate 22 are sleeved on the mounting part 24, a through hole is formed in the mounting part 24, and at least part of the moving rod 40 is opposite to the compression spring plate 23 after penetrating through the through hole.
Specifically, the mounting part 24 includes a first portion mounted on the mounting plate 3, and a second portion provided through the hole, and the compression spring plate 23 is mounted on the second portion, which are connected in this order.
In order to facilitate the movement of the compression spring plate 23, the second portion is provided with a guide opening 240, the extension direction of the guide opening 240 is consistent with the extension direction of the second portion, and at least a part of the compression spring plate 23 passes through the guide opening 240 and then is connected with the second portion, so that the compression spring plate 23 moves along the extension direction of the guide opening 240.
The second wire clamping assembly 2 further comprises: an adjusting member 25, the adjusting member 25 being mounted on an end portion of the mounting member 24, the adjusting member 25 being provided movably in an extending direction of the mounting member 24; and an elastic member 26, a first end of the elastic member 26 is connected with the adjusting member 25, and a second end of the elastic member 26 is connected with the compression spring plate 23, so that when the moving rod 40 moves towards a direction away from the compression spring plate 23, the compression spring plate 23 is pushed to move towards a direction close to the fourth clamping plate 22 by the elastic force of the elastic member 26, and the compression spring plate 23 pushes the fourth clamping plate 22 to move towards a direction close to the third clamping plate 21. The arrangement is convenient for the sewing machine to always keep pressing the fourth thread clamping plate 22 by the elastic component 26 in the sewing process, and meanwhile, the acting force applied to the fourth thread clamping plate 22 by the pressure spring plate 23 can be adjusted through the adjusting component 25.
Preferably, the adjustment member 25 is an adjustment nut that is threadedly coupled to the mounting member 24.
In the implementation process, the first clamping assembly 1 comprises a first clamping plate 11 and a second clamping plate 12 which are oppositely arranged, the first clamping space 10 is arranged between the first clamping plate 11 and the second clamping plate 12, and the second clamping plate 12 is movably arranged in the direction close to or far away from the first clamping plate 11 so as to adjust the size of the first clamping space 10.
The invention also provides a sewing machine which comprises the thread clamping structure.
From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:
the thread clamping structure provided by the invention is arranged on a machine body of a sewing machine, wherein the thread clamping structure comprises a first thread clamping assembly 1 and a second thread clamping assembly 2, the first thread clamping assembly 1 is provided with a first clamping space 10 for clamping the sewing thread, and at least part of the first thread clamping assembly 1 is movably arranged to adjust the size of the first clamping space 10; the second wire clamping assembly 2 is located at the side of the first wire clamping assembly 1, the second wire clamping assembly 2 is provided with a second clamping space 20, and at least part of the second wire clamping assembly 2 is movably arranged to adjust the size of the second clamping space 20. Through the cooperation of first centre gripping space 10 and second centre gripping space 20, when needing the centre gripping sewing thread, first thread clamping component 1 and second thread clamping component 2 keep the centre gripping state simultaneously, when needs cut the sewing thread, release the sewing thread simultaneously through first thread clamping component 1 and second thread clamping component 2 to avoid the tension of sewing thread too big, cause the problem of broken string in advance.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by 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. A thread tension structure installed on a sewing machine body, comprising:
a first thread clamping assembly (1), wherein the first thread clamping assembly (1) is provided with a first clamping space (10) for clamping sewing threads, and at least part of the first thread clamping assembly (1) is movably arranged so as to adjust the size of the first clamping space (10);
the second wire clamping assembly (2) is located on the lateral side of the first wire clamping assembly (1), the second wire clamping assembly (2) is provided with a second clamping space (20), and at least part of the second wire clamping assembly (2) is movably arranged to adjust the size of the second clamping space (20).
2. The thread clamp according to claim 1, wherein the second thread clamping assembly (2) is mounted on a first side of a mounting plate (3) of the sewing machine, the second thread clamping assembly (2) further comprising:
the clamping device comprises a third clamping plate (21) and a fourth clamping plate (22), wherein the third clamping plate (21) and the fourth clamping plate (22) are oppositely arranged so as to form a second clamping space (20) between the third clamping plate (21) and the fourth clamping plate (22);
solenoid subassembly (4), at least part of solenoid subassembly (4) is installed the second side of mounting panel (3), solenoid subassembly (4) have carriage release lever (40), at least part of carriage release lever (40) is passed behind mounting panel (3) with fourth clamp (22) is relative, carriage release lever (40) orientation is close to or keeps away from under the effect of electromagnetic force the direction of fourth clamp (22) is removed, in order to promote fourth clamp (22) orientation is kept away from the direction of third clamp (21) is removed.
3. The wire clamping structure according to claim 2, characterized in that the electromagnetic assembly (4) further comprises:
electro-magnet (41), electro-magnet (41) are installed the second side of mounting panel (3), iron core (42) have in electro-magnet (41), carriage release lever (40) with iron core (42) are connected to drive through iron core (42) carriage release lever (40) remove.
4. The wire clamping structure according to claim 2, characterized in that the second wire clamping assembly (2) further comprises:
the compression spring plate (23) is arranged on the surface, away from the third clamping plate (21), of the fourth clamping plate (22), the compression spring plate (23) is abutted to the fourth clamping plate (22), and at least part of the moving rod (40) penetrates through the fourth clamping plate (22) and then is opposite to the compression spring plate (23).
5. The wire clamping structure according to claim 4, characterized in that the second wire clamping assembly (2) further comprises:
mounting means (24) install on mounting panel (3), third splint (21) with fourth splint (22) are all established on mounting means (24), be provided with on mounting means (24) and pass the hole, at least part of carriage release lever (40) passes behind the hole with compression spring board (23) is relative.
6. The wire clamping structure according to claim 5, wherein the mounting part (24) comprises a first portion and a second portion connected in series, the first portion being mounted on the mounting plate (3), the through hole being provided in the first portion, and the compression spring plate (23) being mounted on the second portion.
7. The wire clamping structure according to claim 6, wherein a guide opening (240) is formed in the second portion, the extending direction of the guide opening (240) is consistent with the extending direction of the second portion, and at least a part of the compression spring plate (23) passes through the guide opening (240) and then is connected with the second portion, so that the compression spring plate (23) moves along the extending direction of the guide opening (240).
8. The wire clamping structure according to claim 5, characterized in that the second wire clamping assembly (2) further comprises:
an adjustment member (25), the adjustment member (25) being mounted on an end portion of the mounting member (24), the adjustment member (25) being provided movably in an extending direction of the mounting member (24);
the first end of the elastic component (26) is connected with the adjusting component (25), the second end of the elastic component (26) is connected with the compression spring plate (23), so that when the moving rod (40) moves towards the direction far away from the compression spring plate (23), the compression spring plate (23) is pushed to move towards the direction close to the fourth wire clamping plate (22) by the elastic force of the elastic component (26), and the compression spring plate (23) pushes the fourth wire clamping plate (22) to move towards the direction close to the third wire clamping plate (21).
9. The wire clamping structure according to claim 8, wherein the adjusting member (25) is an adjusting nut which is screwed with the mounting member (24).
10. A sewing machine comprising a thread take-up structure, characterized in that it is a thread take-up structure as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010432765.8A CN113699705A (en) | 2020-05-20 | 2020-05-20 | Thread clamping structure and sewing machine with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010432765.8A CN113699705A (en) | 2020-05-20 | 2020-05-20 | Thread clamping structure and sewing machine with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113699705A true CN113699705A (en) | 2021-11-26 |
Family
ID=78645356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010432765.8A Pending CN113699705A (en) | 2020-05-20 | 2020-05-20 | Thread clamping structure and sewing machine with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113699705A (en) |
-
2020
- 2020-05-20 CN CN202010432765.8A patent/CN113699705A/en active Pending
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