CN106149230B - Needle plate of overedger - Google Patents
Needle plate of overedger Download PDFInfo
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- CN106149230B CN106149230B CN201610784135.0A CN201610784135A CN106149230B CN 106149230 B CN106149230 B CN 106149230B CN 201610784135 A CN201610784135 A CN 201610784135A CN 106149230 B CN106149230 B CN 106149230B
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- suction
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B73/00—Casings
- D05B73/04—Lower casings
- D05B73/12—Slides; Needle plates
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- Sewing Machines And Sewing (AREA)
Abstract
The invention provides a needle plate of an overlock machine, and belongs to the technical field of sewing machines. It has solved the many and low problem of production efficiency of current hemming machine process. This faller of overedger, including being platelike plate body, the plate body on run through along vertical direction and set up the quick-witted pinhole that can supply the eedle to pass, the plate body on seted up and inhaled the line passageway, the rear end of inhaling the line passageway be used for with the sealed intercommunication of air duct and should inhale the rear end port of line passageway and be located the bottom surface of above-mentioned plate body or the terminal surface of plate body one end, the front end port of inhaling the line passageway set up in the plate body bottom of above-mentioned quick-witted pinhole one side. The needle plate of the overedger can reduce working procedures and improve production efficiency of the overedger.
Description
Technical Field
The invention belongs to the technical field of sewing machines, relates to an overlock machine, and particularly relates to a needle plate of an overlock machine.
Background
The overedger is also called a hemming machine, has the main function of preventing the sewing ends of clothes from fluffing, and can be used for hemming and sewing fabrics such as T-shirts, sports wear, underwear and knitting. After the overedger sews the cloth for one time, the remained thread end on the cloth is often required to be cut short, so that the influence of the messy long thread end on the secondary sewing is avoided.
Therefore, an automatic thread trimming system of an industrial overedger is designed, and Chinese patent (application number: 201120561145.0; publication number: CN202482616U) is applied, a pneumatic presser foot lifting mechanism is arranged above a needle plate of the overedger, a pneumatic cloth scrap air suction device is arranged below the needle plate, a pneumatic thread trimming knife group is arranged at the rear part of the needle plate, a pneumatic thread end air suction device is arranged at the lower end of the pneumatic thread trimming knife group, two infrared transmitting tubes are arranged in front of and behind a sewing table positioned at one side of the needle plate, two infrared receiving tubes for receiving transmitting signals of the infrared transmitting tubes are correspondingly arranged on the sewing table, and the actions of the pneumatic thread trimming knife group, the pneumatic presser foot lifting mechanism, the pneumatic thread end air suction device and the pneumatic cloth scrap air suction device are all controlled by a four-row electromagnetic valve. The automatic thread trimming system of the overedger can realize trimming of residual thread ends of cloth through control of the electromagnetic valve according to information detected by the infrared transmitting tube and the infrared receiving tube, and the automatic degree is high.
However, in the sewing process of the overedger, between the primary sewing and the secondary sewing, the sewing work needs to be stopped, and the pneumatic thread end air suction device and other structures are controlled to work so as to facilitate the thread end cutting of the thread cutting knife group, so that the number of processes is large, and the production efficiency is reduced.
Disclosure of Invention
The invention aims to provide a needle plate of an overedger aiming at the problems in the prior art, and aims to solve the technical problem of improving the production efficiency.
The purpose of the invention can be realized by the following technical scheme:
the utility model provides a faller of overedger, is including being platelike plate body, the plate body on run through along vertical direction and set up the quick-witted pinhole that can supply the eedle to pass, its characterized in that, the plate body on seted up and inhaled the line passageway, the rear end of inhaling the line passageway be used for with the sealed intercommunication of air duct and should inhale the rear end port of line passageway and be located the bottom surface of above-mentioned plate body or the terminal surface of plate body one end, the front end port of inhaling the line passageway set up in the plate body bottom of above-mentioned quick-witted pinhole one side.
When the needle plate of the overedger is used, one end of the air duct is hermetically communicated with a rear end port serving as an air outlet on a thread suction channel of the needle plate, and the other end of the air duct is connected to the air suction device. After the cloth is sewn for one time, the suction device generates suction force to suck residual thread ends on the cloth arranged on the upper side of the needle plate into the thread suction channel through a front end port serving as an air inlet on the thread suction channel. When the cloth is sewn for the second time, the thread ends can be orderly led out from the material suction channel along with the action of the cloth and sewn into the sidelines. Compared with the prior art, the thread suction channel is directly arranged on the needle plate and can be closer to cloth on the needle plate, the port at the front end of the thread suction channel is arranged on one side of the needle hole, thread ends can be sucked into the thread suction channel more stably and reliably, the influence caused by messy distribution of long thread ends is effectively avoided, the thread ends are not required to be cut short through a thread cutting knife set, the working procedures are reduced, and the production efficiency is improved.
In the needle plate of the overedger, the bottom of the plate body is provided with a concave strip-shaped thread suction groove, the notch of the thread suction groove faces downwards, a cover plate is arranged at the notch of the thread suction groove, the cover plate is fixedly connected with the bottom of the plate body at the notch of the thread suction groove, and a thread suction channel is formed between the cover plate and the thread suction groove. The thread suction channel is arranged in the needle plate, so that the thread suction channel can be closer to a thread end of cloth, and can effectively avoid the interference of other structures below the needle plate on the work of the thread suction channel relative to a thread suction pipe made of a softer material, the failure rate is reduced, the thread suction action of the thread suction channel can be stably and effectively carried out, and the sewing work efficiency of the overedger is further ensured.
In the needle plate of the overedger, the front end of the cover plate is provided with a thread suction part corresponding to the position of the needle hole, a distance is reserved between the thread suction part and a notch of the thread suction groove opposite to the thread suction part, and a thread suction port is formed between the thread suction part and the bottom surface of the plate body between the thread suction groove and the needle hole. The material sucking port is formed by matching the front end wire sucking part of the cover plate with the bottom surface of the plate body, so that the structural design of the whole material sucking channel is more compact, and the thread end can be sucked more stably.
In the needle plate of the overedger, the front end of the thread suction groove extends out of the end part of the front end of the cover plate, and the notch is opened to form an expansion opening communicated with the thread suction opening. The length of apron is less than the length of suction line groove promptly, the front end of apron does not cover whole suction line groove completely, the partial notch that suction line groove front end surpassed the apron opens as the expansion mouth, because of the stub of quick-witted pinhole department is comparatively mixed and disorderly, the setting up of expansion mouth makes the opening of suction line mouth become great, can make the stub inhale more easily and inhale in the material passageway, avoided because of the opening that inhales the stub leads to the stub to block to die easily in the opening part and make the stub unable by inhaling in the line passageway, guarantee the inspiratory reliability of stub.
In the needle plate of the overedger, the bottom surface of the plate body at the thread suction part is recessed upwards, the thread suction part is bent upwards, and the lowest point of the thread suction part is not lower than the un-recessed bottom surface of the plate body. The front end of the cover plate is bent upwards, so that the front end of the cover plate protrudes downwards when the suction port is avoided, interference of other structures or artificial accidental touch can be effectively prevented, faults are avoided, the stability and reliability of the structure are guaranteed, and the production efficiency is improved.
In foretell hemming machine's faller, the thread suction groove include straight flute section one, straight flute section two and be located straight flute section one and straight flute section two between be curved linkage segment, straight flute section one be located one side of above-mentioned machine pinhole and with the aforesaid thread suction position correspond, straight flute section two relative with the position of above-mentioned machine pinhole and the rear end of straight flute section two is seted up the terminal surface of locating the plate body rear end. The structure size of the needle plate is considered, the thread suction groove is arranged into the straight groove section I, the connecting section and the straight groove section II, the size of a plate body of the needle plate is not increased, the air inlet of the thread suction channel can be closer to the thread end position, and the thread end suction reliability is guaranteed.
Compared with the prior art, the structural design of the thread suction channel in the needle plate of the overedger is matched with the air guide tube and the air suction device, so that residual long thread ends on the cloth can be stably and effectively sucked into the thread suction channel, the influence of the long thread ends which are distributed in disorder and cause subsequent sewing is avoided, the long thread ends do not need to be cut short by a thread cutting knife group, the working procedures are reduced, and the production efficiency is improved.
Drawings
FIG. 1 is a schematic view of the structure of a needle plate of the overedger.
FIG. 2 is a partially enlarged view of a suction port on a needle plate of the overedger.
FIG. 3 is a schematic structural view of a plate body of a needle plate of the overedger.
FIG. 4 is a schematic view showing the structure of a cover plate of a needle plate of the overlock sewing machine.
FIG. 5 is an exploded view of the needle plate of the overedger with air ducts connected thereto.
FIG. 6 is a schematic view of the structure of the needle plate of the overedger from another perspective.
In the figure, 1, a plate body; 11. a machine pinhole; 12. a suction duct; 12a, an expansion port; 12b, a straight groove section I; 12c, a straight groove section II; 12d, a connecting section; 2. a thread suction channel; 3. an air duct; 4. a cover plate; 41. a suction line portion; 5. a thread suction port.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
As shown in fig. 1 and 6, the needle plate of the overedger comprises a plate body 1 which is plate-shaped, a needle hole 11 which can be penetrated by a needle is arranged on the plate body 1 along the vertical direction, a thread suction channel 2 is also arranged in the plate body 1, the rear end of the thread suction channel 2 is used for being communicated with an air duct 3 in a sealing way, the rear end port of the thread suction channel 2 is positioned on the bottom surface of the plate body 1 or the end surface of one end of the plate body 1, and the front end port of the thread suction channel 2 is arranged on the bottom of the plate body 1 on one side of the needle hole 11. In the present embodiment, the rear end port of the suction line channel 2 is located at the end face of the rear end of the plate body 1.
As shown in fig. 3 and 4, a concave strip-shaped wire suction groove 12 is formed at the bottom of the plate body 1, a strip-shaped cover plate 4 is arranged at the notch of the wire suction groove 12 and the notch of the wire suction groove 12, the cover plate 4 is fixedly connected with the bottom of the plate body 1 at the notch of the wire suction groove 12, and the wire suction channel 2 is formed between the cover plate 4 and the wire suction groove 12. In the embodiment, the length of the cover plate 4 is smaller than that of the suction duct 12, the rear end of the cover plate 4 is opposite to the rear end of the suction duct 12, and the front end of the suction duct 12 extends out of the front end of the cover plate 4; the cover plate 4 is welded and fixed with the plate body 1 at the notch of the wire suction groove 12. The suction duct 12 includes straight flute section one 12b, straight flute section two 12c and is located the curved linkage segment 12d that is between straight flute section one 12b and the straight flute section two 12c, and straight flute section one 12b is located one side of machine pinhole 11 and corresponds with apron 4 front end position, and the front end of straight flute section one 12b opens, and the terminal surface in plate body 1 rear end is seted up to the rear end of straight flute section two 12c and the relative and straight flute section two 12 c's in position of machine pinhole 11.
As shown in fig. 2, a sheet-shaped thread suction portion 41 is provided at a position corresponding to the position of the needle hole 11 at the front end of the cover plate 4, a gap is provided between the thread suction portion 41 and a notch of the thread suction groove 12 facing the thread suction portion 41, and a thread suction port 5 corresponding to the position of the needle hole 11 is formed between a side portion of the thread suction portion 41 extending out of the thread suction groove 12 and a bottom surface of the plate body 1 between the thread suction groove 12 and the needle hole 11. The notch at the end of the front end of the suction duct 12 protruding the front end of the cover plate 4 is opened to form an expanded opening 12a communicating with the suction duct 5. In the present embodiment, the bottom surface of the plate body 1 at the suction line portion 41 is recessed upward, the suction line portion 41 is bent upward and the lowest point of the suction line portion 41 is not lower than the bottom surface of the plate body 1 which is not recessed.
As shown in figure 5, when the needle plate of the overedger is used, one end of the air duct 3 is hermetically communicated with the rear port of the straight groove section two 12c on the thread suction channel 2 of the needle plate, and the other end of the air duct 3 is connected to the air suction device.
After the cloth is sewn for one time, the suction device generates suction force to suck residual thread ends on the cloth on the upper side of the needle plate into the thread suction channel 2 through the thread suction port 5 and the expansion port 12a, so that the residual long thread ends on the cloth are prevented from being disordered. When the cloth is sewn for the second time, the thread ends can be orderly led out from the material suction channel along with the action of the cloth and sewn into the sidelines. Compared with the prior art, the thread suction channel 2 is directly arranged on the needle plate and can be closer to cloth on the needle plate, the port at the front end of the thread suction channel is arranged on one side of the needle hole 11, thread ends can be sucked into the thread suction channel 2 more stably and reliably, the influence caused by messy distribution of long thread ends is effectively avoided, the thread ends are not required to be cut short by a thread cutting knife group, the process is reduced, and the production efficiency is improved.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (5)
1. A needle plate of a overedger comprises a plate body (1) in a plate shape, wherein a needle hole (11) for a needle to pass through is formed in the plate body (1) in a penetrating mode along the vertical direction, and the needle plate is characterized in that a thread suction channel (2) is formed in the plate body (1), the rear end of the thread suction channel (2) is used for being communicated with an air duct (3) in a sealing mode, the rear end port of the thread suction channel (2) is located on the bottom face of the plate body (1) or the end face of one end of the plate body (1), the front end port of the thread suction channel (2) is formed in the bottom of the plate body (1) on one side of the needle hole (11), a concave strip-shaped thread suction groove (12) is formed in the bottom of the plate body (1), a cover plate (4) is arranged on the notch of the thread suction groove (12) downwards, and fixedly connected with the bottom of the plate body (1) at the notch of the thread suction groove (12), the wire suction channel (2) is formed between the cover plate (4) and the wire suction groove (12).
2. A needle plate of an overlock machine according to claim 1, wherein a suction portion (41) is provided at a position corresponding to the needle hole (11) at the front end of the cover plate (4), a gap is provided between the suction portion (41) and a notch of the suction groove (12) facing the suction portion (41), and a suction port (5) is formed between the suction portion (41) and a bottom surface of the plate body (1) between the suction groove (12) and the needle hole (11).
3. A needle plate of an overlock machine according to claim 2, wherein the front end of said suction duct (12) is extended out of the end of the front end of said cover plate (4) and the opening of the slot is opened to form an expanded opening (12a) communicating with said suction opening (5).
4. A needle plate of an overlock machine according to claim 2 or 3, wherein a bottom surface of said plate body (1) at said thread suction portion (41) is recessed upward, said thread suction portion (41) is bent upward and a lowest point of said thread suction portion (41) is not lower than a non-recessed bottom surface of said plate body (1).
5. The needle plate of the overedger according to claim 2 or 3, characterized in that the suction duct (12) comprises a first straight duct section (12b), a second straight duct section (12c) and an arc-shaped connecting section (12d) positioned between the first straight duct section (12b) and the second straight duct section (12c), the first straight duct section (12b) is positioned at one side of the needle hole (11) and corresponds to the suction portion (41), the second straight duct section (12c) is positioned opposite to the needle hole (11) and the rear end of the second straight duct section (12c) is arranged on the end face of the rear end of the plate body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610784135.0A CN106149230B (en) | 2016-08-31 | 2016-08-31 | Needle plate of overedger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610784135.0A CN106149230B (en) | 2016-08-31 | 2016-08-31 | Needle plate of overedger |
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| Publication Number | Publication Date |
|---|---|
| CN106149230A CN106149230A (en) | 2016-11-23 |
| CN106149230B true CN106149230B (en) | 2020-02-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610784135.0A Active CN106149230B (en) | 2016-08-31 | 2016-08-31 | Needle plate of overedger |
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| Country | Link |
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| CN (1) | CN106149230B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4038933A (en) * | 1975-09-11 | 1977-08-02 | Rockwell-Rimoldi S.P.A. | Device for retaining a chain of stitches in a sewing machine |
| CN1100482A (en) * | 1993-09-18 | 1995-03-22 | 高林股份有限公司 | Thread-cutting apparatus for multi-needle sewing machine |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3372613B2 (en) * | 1993-11-16 | 2003-02-04 | ペガサスミシン製造株式会社 | Empty stitch machine for chain stitch machine |
| JP3248063B2 (en) * | 1997-01-23 | 2002-01-21 | ペガサスミシン製造株式会社 | Overlock sewing machine for overlock sewing machine |
| JP4277292B2 (en) * | 1999-04-12 | 2009-06-10 | ヤマトミシン製造株式会社 | Overlock sewing machine |
| CN2402699Y (en) * | 1999-06-01 | 2000-10-25 | 卢金荣 | Thread end suction device for overlock sewing machine |
| CN203159871U (en) * | 2013-01-14 | 2013-08-28 | 上海富山精密机械科技有限公司 | Thread cutting blowing structure of hemmer presser foot tail piece |
| CN203451820U (en) * | 2013-08-27 | 2014-02-26 | 张金福 | Cleaning device of sewing machine |
-
2016
- 2016-08-31 CN CN201610784135.0A patent/CN106149230B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4038933A (en) * | 1975-09-11 | 1977-08-02 | Rockwell-Rimoldi S.P.A. | Device for retaining a chain of stitches in a sewing machine |
| CN1100482A (en) * | 1993-09-18 | 1995-03-22 | 高林股份有限公司 | Thread-cutting apparatus for multi-needle sewing machine |
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| Publication number | Publication date |
|---|---|
| CN106149230A (en) | 2016-11-23 |
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