CN203270240U - Thread clamping mechanism of sewing machine - Google Patents
Thread clamping mechanism of sewing machine Download PDFInfo
- Publication number
- CN203270240U CN203270240U CN 201320284505 CN201320284505U CN203270240U CN 203270240 U CN203270240 U CN 203270240U CN 201320284505 CN201320284505 CN 201320284505 CN 201320284505 U CN201320284505 U CN 201320284505U CN 203270240 U CN203270240 U CN 203270240U
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- CN
- China
- Prior art keywords
- clamping part
- iron core
- clamping mechanism
- solenoid
- sewing machines
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model provides a thread clamping mechanism of a sewing machine. The thread clamping mechanism of the sewing machine comprises a base and a cover plate. An electromagnetic coil is arranged in the base, the bottom of the cover plate is fixedly connected with an iron core, the iron core is inserted in the electromagnetic coil, the upper end of the base stretches to form a lower clamping part, an upper clamping part is stretched from the cover plate, four locating blocks which stretch downwards are arranged on the upper clamping part, the locating blocks stretching downwards are divided into two rows both in the left-and-right direction and in the front-and-back direction, a clamping slot is formed between the front row of the locating blocks and the back row of the locating blocks, the lower clamping part is located in the clamping slot, and a threading slot is formed between the left row of the locating blocks and the right row of the locating blocks. By the adoption of the thread clamping mechanism of the sewing machine, threads are clamped in the threading slot, namely, the threads are clamped between the left row of the locating blocks and the right row of the locating blocks, due to the fact that the locating blocks stretch downwards and are located on the outer side of the lower clamping part, the threads are effectively prevented from slipping from a thread clamping device, thread residues of the cotton threads can penetrate through sewing materials and are always kept below the sewing materials, then, sewn stitches can be tidy and attractive, and the quality of the sewing materials is improved.
Description
Technical field
The utility model relates to a kind of Sewing machines, particularly relates to a kind of Sewing machines thread clamping mechanism.
Background technology
Sewing machines is to form one or more stitchings, the machine that makes one or more layers sewing interweave or unite by a seam on sewing with one or more suture.The sewing function is made the goods such as the fabric such as cotton, fiber crops, silk, hair, artificial fibre and leather, plastics, paper, the stitching neat appearance of stitching out, smooth firm, and sewing velocity is fast, easy to use.Sewing machines generally comprises head, support, transmission mechanism and other parts, wherein head is the main department of Sewing machines, the head lower end is installed with shank, and the shank lower end is installed with eedle, by thorn expect, the circulation step such as hook line, take-up, feeding unites by a seam sewing.
Along with progress and the development of science and technology, current Sewing machines is towards the future development of electronic and intelligentized type, function combined, semi-automation, automation, and as computer controlled sewing machine, it is mainly to control the suture track by control program.But, after completing, its automatic shearing function can stay one section long the end of a thread on eedle, tend to occur like this " Bird's Nest " phenomenon that the end of a thread is wound around in sewing originally next time, sewing stitching out-of-flatness, the utmost point out is not attractive in appearance like this, and then the class of reduction sewing, and waste line amount.
Chinese utility model patent specification CN201610471U discloses an a kind of seam tension disk of industrial sewing machine, is used for when playing seam, the suture above eedle being clamped, and with the end of a thread of shortening eedle below, eliminates " Bird's Nest " phenomenon.This plays the seam tension disk and is arranged on head, comprise L-type electromagnet casing, tee T electromagnetic core and solenoid, described L-type electromagnet casing comprises lower clamping part and housing, described tee T electromagnetic core comprises clamping part and electromagnetic core, described electromagnetic core inserts in solenoid, and suture is between upper clamping part and lower clamping part; During work, play the energising of seam tension disk electromagnetic core is moved down, and then suture is clamped between clamping part and lower clamping part.But, on this rises in the seam tension disk, the working face of clamping part and lower clamping part is smooth face, and its working face is smooth, is not easy to clamp suture, the suture that causes being pressed from both sides above tension disk also can move down in the process that eedle moves down, and then " Bird's Nest " phenomenon occurs again; Perhaps suture can skid off from tension disk.
The utility model content
The shortcoming of prior art in view of the above, the technical problems to be solved in the utility model is to provide a kind of Sewing machines thread clamping mechanism that can tightly clamp suture, to overcome the defective that suture also can move down or suture skids off that in prior art, the tension disk top is pressed from both sides from tension disk in the process that eedle moves down.
For achieving the above object, the utility model provides a kind of Sewing machines thread clamping mechanism, comprise base and cover plate, be provided with a solenoid in described base, described cover plate bottom is fixedly connected with an iron core, described iron core inserts in solenoid, described base upper end is extended with lower clamping part, be extended with clamping part on described cover plate, establish altogether four to the locating piece of downward-extension on described upper clamping part, described locating piece all is divided into two rows along left and right directions, fore-and-aft direction, forms a draw-in groove between the two registration pieces of front and back, and described lower retaining part is in this draw-in groove; And form a Wire channel in building between the two registration pieces of left and right.
Preferably, in the position of described Wire channel in building, be respectively equipped with projection and the groove that matches on the apparent surface of described upper clamping part and lower clamping part.
Further, described iron core comprises iron core body and the guide rod of being located at iron core body lower end, described iron core body upper end is fixed in described cover plate, described solenoid upper end is provided with a tank, described iron core body matches with tank, described solenoid and base are provided with a pilot hole that matches with described guide rod, and on guide rod, cover has a back-moving spring, and described back-moving spring is between iron core body and base.
Preferably, be fixed with a fairlead that matches with the iron core body in described tank.
Further, also be connected with a stop screw between the upper and lower clamping part of described upper clamping part, described stop screw allows moving up and down between upper clamping part and lower clamping part.
Preferably, the right-hand member of described upper clamping part is provided with a spigot surface that is tilted to the left.
Further, described solenoid is a cylinder, described base upper end offers a stopper slot, described solenoid upper end outer surface is provided with a limited block, described limited block is arranged in stopper slot, one patchcord is located in stopper slot and in described solenoid and connects, and described patchcord is positioned at the below of limited block.
As mentioned above, the Sewing machines thread clamping mechanism that the utility model relates to has following beneficial effect:
This Sewing machines thread clamping mechanism is stuck in suture in Wire channel in building, be that suture is stuck between the two registration pieces of left and right, because of locating piece to downward-extension and be positioned at the lower clamping part outside, therefore prevent that effectively suture from skidding off from tension disk, and guarantee to make cotton thread the end of a thread pass sewing, cotton thread the end of a thread is remained in sewing below, and then guarantee the stitching neat appearance of sewing out to improve the sewing quality.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the upward view of Fig. 1.
Fig. 3 is the partial sectional view of Fig. 2.
Fig. 4 is that the A-A of Fig. 3 is to cutaway view.
Fig. 5 is that the B-B of Fig. 3 is to cutaway view.
The element numbers explanation
1 base
11 times clamping parts
12 stopper slots
2 cover plates
Clamping part on 21
211 Wire channel in building
212 spigot surfaces
213 locating pieces
214 draw-in grooves
3 solenoids
31 tanks
32 limited blocks
33 pilot holes
4 iron cores
41 iron core bodies
42 guide rods
5 back-moving springs
6 fairleads
7 patchcords
8 stop screws
The specific embodiment
Below by particular specific embodiment explanation embodiment of the present utility model, person skilled in the art scholar can understand other advantages of the present utility model and effect easily by the disclosed content of this specification.
Notice, the appended graphic structure that illustrates of this specification, ratio, size etc., equal contents in order to coordinate specification to disclose only, understand and read for person skilled in the art scholar, be not to limit the enforceable qualifications of the utility model, therefore the technical essential meaning of tool not, the adjustment of the modification of any structure, the change of proportionate relationship or size, do not affecting under the effect that the utility model can produce and the purpose that can reach, all should still drop on the technology contents that the utility model discloses and get in the scope that can contain.Simultaneously, quote in this specification as " on ", the term of D score, " left side ", " right side ", " centre " etc., also only for ease of understanding of narrating, but not in order to limit the enforceable scope of the utility model, the change of its relativeness or adjustment, under without essence change technology contents, when also being considered as the enforceable category of the utility model.
The Sewing machines thread clamping mechanism that the utility model relates to is arranged on the head of Sewing machines and is positioned at the eedle top, be used for clamping suture when playing seam, the suture of tension disk top is maintained static, and then the suture that in the shortening eedle, cut last time in the process that eedle moves down, and guarantee to make cotton thread the end of a thread pass sewing, cotton thread the end of a thread is remained in the sewing below.as shown in Figure 1, this Sewing machines thread clamping mechanism comprises base 1 and cover plate 2, see Fig. 3 and Fig. 4, be provided with a solenoid 3 in described base 1, described cover plate 2 bottoms are fixedly connected with an iron core 4, described iron core 4 inserts in solenoid 3, see Fig. 2 and Fig. 5, described base 1 upper end is extended with lower clamping part 11, be extended with clamping part 21 on described cover plate 2, establish altogether four on described upper clamping part 21 to the locating piece 213 of downward-extension, described locating piece 213 is along left and right directions, fore-and-aft direction all is divided into two rows, form a draw-in groove 214 between the two registration pieces 213 of front and back, described lower clamping part 11 is positioned at this draw-in groove 214, and form a Wire channel in building 211 between the two registration pieces 213 of left and right.
In the present embodiment, see Fig. 4, the guide rod 42 that described iron core 4 comprises iron core body 41 and is located at iron core body 41 lower ends, described iron core body 41 upper ends are fixed in described cover plate 2, described solenoid 3 upper ends are provided with a tank 31, and described iron core body 41 matches with tank 31, and described solenoid 3 and base 1 are provided with a pilot hole 33 that matches with described guide rod 42, and on guide rod 42, cover has a back-moving spring 5, and described back-moving spring 5 is between iron core body 41 and base 1.Described solenoid 3 is a cylinder, described base 1 upper end offers a stopper slot 12, described solenoid 3 upper end outer surfaces are provided with a limited block 32, described limited block 32 is arranged in stopper slot 12, one patchcord 7 is located in stopper slot 12 and in described solenoid 3 and connects, and described patchcord 7 is positioned at the below of limited block 32.In the sewing process, suture is located in described Wire channel in building 211 always; When playing seam, one servo controller that is connected with described patchcord 7 is started working, control program is input to action command in solenoid 3 by patchcord 7, be that solenoid 3 energisings move down iron core 4, and then drive cover plate 2 moves down, and then make clamping part 21 and lower clamping part 11 tightly clamp suture, namely suture is fixed and is stuck in Wire channel in building 211; The suture of tension disk top maintains static, and then the suture that below the shortening eedle, cut last time in the eedle folding process; When eedle began to sew the first pin, servo controller moved again, solenoid 3 outages, and iron core 4 resets under the effect of back-moving spring 5 elastic forces, and this moment, suture moved down along with moving down of eedle, and then completed sewing work; In the sewing process, the gap between upper clamping part 21 and lower clamping part 11 should be less than or equal to 0.05mm.
Preferably, in order to reduce the resistance in iron core 4 moving process, therefore be fixed with a fairlead 6 that matches with iron core body 41 in described tank 31, see Fig. 4, and then reduce the contact area of iron core 4 and solenoid 3, and then reduce resistance.
Preferably, in order firmly to clamp suture when the clamp, see Fig. 3 and Fig. 5, position at described Wire channel in building 211, be respectively equipped with projection and the groove that matches on the apparent surface of described upper clamping part 21 and lower clamping part 11, and then be positioned at Wire channel in building 211 with making the suture bending, increase the friction between suture and upper clamping part 21, lower clamping part 11, when effectively preventing from clamping suture, the suture that can drive the tension disk top due to moving down of eedle produces trace and moves down.In the present embodiment, described projection is located on the bottom surface of clamping part 21, and groove is located on the end face of lower clamping part 11; Also described groove can be located on the bottom surface of upper clamping part 21, projection is located on the end face of lower clamping part 11
Further, see Fig. 1 and Fig. 3, also be connected with a stop screw 8 between the upper and lower clamping part 11 of described upper clamping part 21, described stop screw 8 allows moving up and down between upper clamping part 21 and lower clamping part 11, be that described upper clamping part 21 is provided with a counterbore, described lower clamping part 11 is provided with a through hole, and described stop screw 8 inserts in described counterbore and through hole successively.
Preferably, see Fig. 2 and Fig. 3, the right-hand member of described upper clamping part 21 is provided with a spigot surface that is tilted to the left 212, and namely described spigot surface 212 inwardly and to the direction of Wire channel in building 211 tilts, and then is convenient to suture is snapped in Wire channel in building 211.
This Sewing machines thread clamping mechanism is stuck in suture in Wire channel in building, be that suture is stuck between the two registration pieces of left and right, because of locating piece to downward-extension and be positioned at the lower clamping part outside, therefore prevent that effectively suture from skidding off from tension disk, and guarantee to make cotton thread the end of a thread pass sewing, cotton thread the end of a thread is remained in sewing below, and then guarantee the stitching neat appearance of sewing out to improve the sewing quality.
In sum, the utility model has effectively overcome various shortcoming of the prior art and the tool high industrial utilization.
Above-described embodiment is illustrative principle of the present utility model and effect thereof only, but not is used for restriction the utility model.Any person skilled in the art scholar all can under spirit of the present utility model and category, modify or change above-described embodiment.Therefore, have in technical field under such as and know that usually the knowledgeable modifies or changes not breaking away from all equivalences of completing under spirit that the utility model discloses and technological thought, must be contained by claim of the present utility model.
Claims (7)
1. Sewing machines thread clamping mechanism, comprise base (1) and cover plate (2), be provided with a solenoid (3) in described base (1), described cover plate (2) bottom is fixedly connected with an iron core (4), described iron core (4) inserts in solenoid (3), described base (1) upper end is extended with lower clamping part (11), be extended with clamping part (21) on described cover plate (2), it is characterized in that: establish altogether four locating pieces to downward-extension (213) on described upper clamping part (21), described locating piece (213) is along left and right directions, fore-and-aft direction all is divided into two rows, form a draw-in groove (214) between the two registration pieces (213) of front and back, described lower clamping part (11) is positioned at this draw-in groove (214), and form a Wire channel in building (211) between the two registration pieces (213) of left and right.
2. Sewing machines thread clamping mechanism according to claim 1, it is characterized in that: the position in described Wire channel in building (211) is respectively equipped with projection and the groove that matches on the apparent surface of described upper clamping part (21) and lower clamping part (11).
3. Sewing machines thread clamping mechanism according to claim 1, it is characterized in that: described iron core (4) comprises iron core body (41), and the guide rod (42) of being located at iron core body (41) lower end, described iron core body (41) upper end is fixed in described cover plate (2), described solenoid (3) upper end is provided with a tank (31), described iron core body (41) matches with tank (31), described solenoid (3) and base (1) are provided with a pilot hole (33) that matches with described guide rod (42), and the upper cover of guide rod (42) has a back-moving spring (5), described back-moving spring (5) is positioned between iron core body (41) and base (1).
4. Sewing machines thread clamping mechanism according to claim 3, is characterized in that: be fixed with a fairlead (6) that matches with iron core body (41) in described tank (31).
5. Sewing machines thread clamping mechanism according to claim 1, it is characterized in that: also be connected with a stop screw (8) between the upper and lower clamping part of described upper clamping part (21) (11), moving up and down between clamping part (21) and lower clamping part (11) in described stop screw (8) permission.
6. Sewing machines thread clamping mechanism according to claim 1, it is characterized in that: the right-hand member of described upper clamping part (21) is provided with a spigot surface that is tilted to the left (212).
7. Sewing machines thread clamping mechanism according to claim 1, it is characterized in that: described solenoid (3) is a cylinder, described base (1) upper end offers a stopper slot (12), described solenoid (3) upper end outer surface is provided with a limited block (32), described limited block (32) is arranged in stopper slot (12), one patchcord (7) is located in stopper slot (12) and in described solenoid (3) and connects, and described patchcord (7) is positioned at the below of limited block (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320284505 CN203270240U (en) | 2013-01-21 | 2013-05-22 | Thread clamping mechanism of sewing machine |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320033241.7 | 2013-01-21 | ||
| CN201320033241 | 2013-01-21 | ||
| CN 201320284505 CN203270240U (en) | 2013-01-21 | 2013-05-22 | Thread clamping mechanism of sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203270240U true CN203270240U (en) | 2013-11-06 |
Family
ID=49500687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320284505 Expired - Lifetime CN203270240U (en) | 2013-01-21 | 2013-05-22 | Thread clamping mechanism of sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203270240U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108374245A (en) * | 2015-06-19 | 2018-08-07 | 杰克缝纫机股份有限公司 | The wire-clamping device and its operational method of sewing machine |
| CN109832638A (en) * | 2019-02-25 | 2019-06-04 | 宁波工程学院 | A kind of kelp cleaner |
| CN109881388A (en) * | 2019-03-01 | 2019-06-14 | 林泽贤 | Tangent line component, thread cutter and sewing machine |
-
2013
- 2013-05-22 CN CN 201320284505 patent/CN203270240U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108374245A (en) * | 2015-06-19 | 2018-08-07 | 杰克缝纫机股份有限公司 | The wire-clamping device and its operational method of sewing machine |
| CN108374245B (en) * | 2015-06-19 | 2020-10-09 | 杰克缝纫机股份有限公司 | Operation method of thread clamping device of sewing machine |
| CN109832638A (en) * | 2019-02-25 | 2019-06-04 | 宁波工程学院 | A kind of kelp cleaner |
| CN109881388A (en) * | 2019-03-01 | 2019-06-14 | 林泽贤 | Tangent line component, thread cutter and sewing machine |
| CN109881388B (en) * | 2019-03-01 | 2024-03-22 | 林泽贤 | Thread cutting assembly, thread cutting device and sewing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: JACK SEWING CO., LTD. Free format text: FORMER NAME: NEW JACK SEWING MACHINE CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 318010 Taizhou Airport Road, Jiaojiang District, Zhejiang, No. 15 Patentee after: JACK SEWING MACHINE Co.,Ltd. Address before: 318010 Taizhou Airport Road, Jiaojiang District, Zhejiang, No. 15 Patentee before: NEW JACK SEWING MACHINE Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 318010 No. 1008, east section of Donghai Avenue, Sanjia, Jiaojiang District, Taizhou City, Zhejiang Province Patentee after: Jack Technology Co.,Ltd. Address before: 318010 No. 15 Airport South Road, Jiaojiang District, Zhejiang, Taizhou Patentee before: JACK SEWING MACHINE Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131106 |