CN109056207B - Sewing machine and wire braid conveying device thereof - Google Patents
Sewing machine and wire braid conveying device thereof Download PDFInfo
- Publication number
- CN109056207B CN109056207B CN201811249550.1A CN201811249550A CN109056207B CN 109056207 B CN109056207 B CN 109056207B CN 201811249550 A CN201811249550 A CN 201811249550A CN 109056207 B CN109056207 B CN 109056207B
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- air
- sewing
- sewing material
- pigtail
- trimming
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B81/00—Sewing machines incorporating devices serving purposes other than sewing, e.g. for blowing air, for grinding
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05D—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES D05B AND D05C, RELATING TO SEWING, EMBROIDERING AND TUFTING
- D05D2207/00—Use of special elements
- D05D2207/02—Pneumatic or hydraulic devices
- D05D2207/04—Suction or blowing devices
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- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The invention discloses a sewing machine and a wire braid conveying device thereof, comprising: the air pump is used for blowing air to the conveying direction of the sewing material through the air guide device so that the length direction of a wire braid on the sewing material is consistent with the conveying direction of the sewing material. Because the material of pigtail is comparatively soft, the venthole of air ducting aims at the air outlet that leaves the cavity plait of giving cloth tooth and blows towards cloth direction of motion and can force the pigtail with the speed forward motion the same with the sewing material, thereby guarantee that the pigtail can not be crooked, curl or be pressed in sewing material below, the reason that need not other extra complicated spare parts can realize the pigtail just works, when the pigtail is blown when the direction of delivery unanimous as sewing material, the trimming sword of being convenient for can carry out the trimming plait operation, therefore work efficiency is higher, equipment cost is lower in addition, and simple structure is convenient for maintain.
Description
Technical Field
The invention relates to the technical field of sewing, in particular to a sewing machine and a braid conveying device thereof.
Background
The overedger produces empty wire plaits at the front end and the rear end of the cloth in the sewing process, the empty wire plaits are called front wire plaits at the front end of the cloth, and the empty wire plaits are called rear wire plaits at the rear end of the cloth.
The automatic thread trimming overlock machine can trim the front thread braid and the rear thread braid through the thread trimming device in the sewing process, so that the manual thread trimming process of workers is omitted, and the sewing efficiency is greatly improved.
During sewing, the cloth is continuously conveyed forwards by the feed dog, but the wire braid at the front end of the cloth can only be pushed forwards by the cloth behind. The plait itself is softer, and the speed that the plait was forward can be less than the cloth speed that the cloth was forward when the frictional force of seam platform or other resistance received, and preceding plait is surpassed by the cloth behind, and when the overedger carried out automatic preceding trimming, the line cutter could not cut preceding plait, or the preceding plait of cutting out was than long.
Therefore, how to provide a braid conveying device to facilitate cutting a braid is a technical problem that needs to be solved by those skilled in the art at present.
Disclosure of Invention
In view of the above, the present invention provides a sewing machine and a braid conveying device thereof, which can effectively cut a braid.
In order to achieve the purpose, the invention provides the following technical scheme:
a wire braid delivery device comprising: air pump and air ducting, the air pump with air ducting connects, the air pump is used for passing through air ducting blows to the direction of delivery of seam material, so that the length direction of the line braid on the seam material with the direction of delivery of seam material is unanimous.
Preferably, the air guide device is arranged on a presser foot or a thread guard baffle of the sewing machine, an air inlet and an air outlet are arranged on the presser foot or the thread guard baffle, the air pump is connected with the air inlet through an air pipe, and the air outlet direction of the air outlet is consistent with the conveying direction of the sewing material.
Preferably, a cushion block is arranged on the presser foot, and the air inlet hole and the air outlet hole are arranged on the cushion block.
Preferably, the cushion block is provided with a mounting hole for mounting on the presser foot and a limiting part for preventing the cushion block from rotating around the mounting hole.
Preferably, the air inlet hole protrudes from an upper portion of the pad block.
Preferably, the air outlet of the air guide device is arranged on a needle plate or a thread cutting knife assembly of the sewing machine, and the air outlet of the air guide device is consistent with the conveying direction of the sewing materials.
Preferably, the sewing machine further comprises an operation panel and an electric control port, the operation panel is provided with a selection unit for always blowing air during sewing, blowing air during front thread trimming, blowing air during rear thread trimming, blowing air during front thread trimming and blowing air during rear thread trimming and blowing air intermittently, and the electric control port is used for controlling the air pump to work according to a selected mode of the selection unit.
A sewing machine comprising a braid delivery device as claimed in any preceding claim.
Compared with the prior art, the technical scheme has the following advantages:
the invention provides a sewing machine and a thread braid conveying device thereof, comprising: the air pump is used for blowing air to the conveying direction of the sewing material through the air guide device so that the length direction of a wire braid on the sewing material is consistent with the conveying direction of the sewing material. Because the material of pigtail is comparatively soft, the venthole of air ducting aims at the air outlet that leaves the cavity plait of giving cloth tooth and blows towards cloth direction of motion and can force the pigtail with the speed forward motion the same with the sewing material, thereby guarantee that the pigtail can not be crooked, curl or be pressed in sewing material below, the reason that need not other extra complicated spare parts can realize the pigtail just works, when the pigtail is blown when the direction of delivery unanimous as sewing material, the trimming sword of being convenient for constructs the operation of trimming braid, consequently, work efficiency is higher, equipment cost is lower in addition, and simple structure is convenient for maintain.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a front perspective view of a braid feeding device installed on a sewing machine according to an embodiment of the present invention;
FIG. 2 is a schematic side perspective view of a strand feeder mounted to a sewing machine in accordance with an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a cushion block of a wire braid conveying device according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of an air guiding device of a wire braid conveying device, which is arranged on a wire protection baffle or a needle plate or a wire cutting knife assembly according to an embodiment of the present invention.
The reference numbers are as follows:
the device comprises an air pump 1, a cushion block 2, a thread trimmer 3, an electric control port 4, a presser foot 5, a feed dog 6, an air inlet 7, an air outlet 8, an air pipe 9, a thread trimmer assembly 10, a needle plate 11 and a thread protection baffle 12.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, fig. 2, fig. 3 and fig. 4, fig. 1 is a schematic front perspective view of a braid conveying device installed on a sewing machine according to an embodiment of the present invention; FIG. 2 is a schematic side perspective view of a strand feeder mounted to a sewing machine in accordance with an embodiment of the present invention; fig. 3 is a schematic structural diagram of a cushion block of a wire braid conveying device according to an embodiment of the present invention; fig. 4 is a schematic structural diagram of an air guiding device of a wire braid conveying device, which is arranged on a wire protection baffle or a needle plate or a wire cutting knife assembly according to an embodiment of the present invention.
The wire braid conveying device provided by the embodiment of the invention comprises: the air pump 1 is connected with the air guide device and used for providing compressed air for the air guide device, and the air pump 1 is used for blowing air to the conveying direction of the sewing material through the air guide device so that the length direction of a wire braid on the sewing material is consistent with the conveying direction of the sewing material. Because the material of pigtail is comparatively soft, air guide's venthole 8 aims at the air vent that leaves feed dog 6 and pigtail blows to cloth direction of motion and can force the pigtail with the speed forward motion the same with the sewing material, thereby guarantee that the pigtail can not be crooked, curl or be pressed in sewing material below, the reason that need not other extra complicated spare parts can realize the pigtail just works, when the pigtail is blown to the direction of delivery of sewing material unanimity, be convenient for thread trimmer 3 cuts the pigtail operation, consequently, work efficiency is higher, in addition equipment cost is lower, and simple structure is convenient for maintain.
It should be noted that the air guide device mainly has an effect of guiding the air flow direction, and the specific structure of this embodiment is not particularly limited as long as the air flow direction of the compressed air supplied by the air pump 1 can be guided to be consistent with the conveying direction of the sewing material, or can be slightly inclined, and the length extending direction of the braid is not required to be completely the same as the conveying direction of the sewing material.
Specifically, the air guide device is arranged on a presser foot 5 or a thread protecting baffle plate 11 of the sewing machine, an air inlet 7 and an air outlet 8 are arranged on the presser foot 5 or the thread protecting baffle plate 11, the air pump 1 is connected with the air inlet 7 through an air pipe 9, and the air outlet direction of the air outlet 8 is consistent with the conveying direction of sewing materials. The sewing material is placed between the presser foot 5 and the cloth feeding tooth 6, the sewing material can move forwards through the extrusion of the presser foot 5 and the reciprocating motion of the cloth feeding tooth 6, and the air pump 1 blows air into the air inlet 7, so that the braided wire can be blown to be consistent with the conveying direction of the sewing material.
Furthermore, in order to facilitate the arrangement of the air inlet hole 7 and the air outlet hole 8, the cushion block 2 is arranged on the presser foot 5, and the air inlet hole 7 and the air outlet hole 8 are arranged on the cushion block 2
Specifically, the cushion block 2 is provided with a mounting hole for mounting on the presser foot 5 and a limiting part for preventing the cushion block 2 from rotating around the mounting hole. Wherein can set up protrudingly in cushion 2 bottom to make this bellied side and presser foot 5's side mutual contact, combine the fixed of mounting hole in addition to guarantee that cushion 2 is in relatively stable position, can prevent through spacing portion that the direction of giving vent to anger of venthole 8 from taking place to deflect, and lose the effect of blowing the line pigtail. In addition, the cushion block 2 can be installed in other fixing modes as long as the cushion block 2 is ensured not to deflect in a natural state.
In order to facilitate the connection of the air pump 1 with the cushion block 2, the air inlet hole 7 protrudes from the upper part of the cushion block 2.
In addition to the above-described air guiding by the spacer 2, an air outlet of the air guiding device may be provided in the needle plate 11 or the thread trimmer assembly 10 of the sewing machine, and the air outlet of the air guiding device may be aligned with the feeding direction of the sewing material. If the air outlet is arranged on the needle plate 11 or the thread trimming knife assembly 10, the air outlet is positioned below the thread braid and the sewing material, the air outlet is aligned with the thread braid and blows air towards the movement direction of the sewing material, so that the thread braid can be slightly supported, the contact with a sewing table is reduced, the friction between the thread braid and the sewing table is further reduced, and the thread braid can move forwards more smoothly.
In order to adapt to more sewing materials and different sewing processes, the braid conveying device provided by the embodiment further comprises an operation panel and an electric control port 4, the operation panel is provided with a selection unit for always blowing during sewing, blowing during front thread trimming, blowing during rear thread trimming, blowing during front and rear thread trimming and intermittently blowing, and the electric control port 4 is used for controlling the air pump 1 to work according to the mode of the selected selection unit.
When a constant blowing mode is selected, the air pump 1 is controlled by the electric control port 4 to work constantly when front trimming, sewing and rear trimming are carried out;
when the front trimming blowing mode is selected, the air pump 1 is controlled to work when front trimming is executed through the electric control port 4, and the air pump 1 does not work when the rear trimming is executed during sewing;
when the front and rear trimming blowing mode is selected, the air pump 1 is controlled to work when front trimming and rear trimming are executed through the electric control port 4, and the air pump 1 does not work in sewing;
when a rear trimming blowing mode is selected, the air pump 1 is controlled to work when rear trimming is executed through the electric control port 4, and the air pump 1 does not work when front trimming and sewing are executed;
when the intermittent blowing mode is selected, the air pump 1 is controlled by the electric control port 4 to work when front trimming and rear trimming are carried out, and the air pump 1 works at intervals of specified time in sewing.
An embodiment of the invention also provides a sewing machine, which comprises the wire braid conveying device in any embodiment. The beneficial effects thereof can be obtained by referring to the above embodiments, which are not described herein again.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The sewing machine and the braid conveying device thereof provided by the invention are described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (2)
1. A wire braid conveying device is characterized by comprising: air pump and air ducting, the air pump with air ducting connects, the air pump is used for passing through air ducting blows to the direction of delivery of sewing material, so that the length direction of the line pigtail on the sewing material with the direction of delivery of sewing material is unanimous, air ducting's venthole sets up on sewing machine's faller or thread trimmer components, air ducting's venthole with the direction of delivery of sewing material is unanimous, still includes operating panel and automatically controlled port, the last selector unit that all blows and intermittently blows when blowing when preceding thread trimmer on operating panel and back thread trimmer, automatically controlled port is used for according to the selection the mode control of selector unit the air pump work.
2. A sewing machine comprising the strand feeder of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811249550.1A CN109056207B (en) | 2018-10-25 | 2018-10-25 | Sewing machine and wire braid conveying device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811249550.1A CN109056207B (en) | 2018-10-25 | 2018-10-25 | Sewing machine and wire braid conveying device thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109056207A CN109056207A (en) | 2018-12-21 |
| CN109056207B true CN109056207B (en) | 2021-01-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811249550.1A Active CN109056207B (en) | 2018-10-25 | 2018-10-25 | Sewing machine and wire braid conveying device thereof |
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| Country | Link |
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| CN (1) | CN109056207B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4644884A (en) * | 1983-07-28 | 1987-02-24 | Pegasus Sewing Maching Mfg. Co., Ltd. | Thread chain sewing apparatus for use in overedge sewing machine |
| JPH10118377A (en) * | 1996-10-16 | 1998-05-12 | Juki Corp | Empty ring sewing system in over-lock sewing machine |
| CN201103036Y (en) * | 2007-09-05 | 2008-08-20 | 吕学忠 | Sewing aeration feeding construction of sewing machine cutting device |
| CN101407980A (en) * | 2007-10-12 | 2009-04-15 | 大和缝纫机制造株式会社 | Empty ring sewing up device of sewing machine |
| CN101446006A (en) * | 2007-11-26 | 2009-06-03 | 王国秋 | Front and rear automatic shear line device of overedger sewing products |
-
2018
- 2018-10-25 CN CN201811249550.1A patent/CN109056207B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4644884A (en) * | 1983-07-28 | 1987-02-24 | Pegasus Sewing Maching Mfg. Co., Ltd. | Thread chain sewing apparatus for use in overedge sewing machine |
| JPH10118377A (en) * | 1996-10-16 | 1998-05-12 | Juki Corp | Empty ring sewing system in over-lock sewing machine |
| CN201103036Y (en) * | 2007-09-05 | 2008-08-20 | 吕学忠 | Sewing aeration feeding construction of sewing machine cutting device |
| CN101407980A (en) * | 2007-10-12 | 2009-04-15 | 大和缝纫机制造株式会社 | Empty ring sewing up device of sewing machine |
| CN101446006A (en) * | 2007-11-26 | 2009-06-03 | 王国秋 | Front and rear automatic shear line device of overedger sewing products |
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| Publication number | Publication date |
|---|---|
| CN109056207A (en) | 2018-12-21 |
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Address after: 318000 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. |
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