CN110670208B - Electromagnetic weft insertion weft gripper, opener and weft gripping method thereof - Google Patents
Electromagnetic weft insertion weft gripper, opener and weft gripping method thereof Download PDFInfo
- Publication number
- CN110670208B CN110670208B CN201910830740.0A CN201910830740A CN110670208B CN 110670208 B CN110670208 B CN 110670208B CN 201910830740 A CN201910830740 A CN 201910830740A CN 110670208 B CN110670208 B CN 110670208B
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- weft
- electromagnetic
- weft insertion
- gripper
- jaw
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- 238000003780 insertion Methods 0.000 title claims abstract description 55
- 230000037431 insertion Effects 0.000 title claims abstract description 55
- 238000000034 method Methods 0.000 title abstract description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 18
- 230000000712 assembly Effects 0.000 claims description 9
- 238000000429 assembly Methods 0.000 claims description 9
- 238000012966 insertion method Methods 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 230000007547 defect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
- D03D47/12—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein single picks of weft thread are inserted, i.e. with shedding between each pick
- D03D47/20—Constructional features of the thread-engaging device on the inserters
- D03D47/23—Thread grippers
- D03D47/236—Drawing grippers
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D51/00—Driving, starting, or stopping arrangements; Automatic stop motions
- D03D51/02—General arrangements of driving mechanism
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Looms (AREA)
Abstract
The invention relates to an electromagnetic weft insertion weft gripper, an opener of the electromagnetic weft insertion weft gripper and a weft clamping method of the electromagnetic weft insertion weft gripper. The invention discloses a weft gripper clamp of an electromagnetic weft insertion weft gripper, which comprises a hidden jaw, clamping arms, an elastic element between the clamping arms, and magnets arranged on the outer side of the hidden jaw and opposite to each other in polarity, wherein an opener of the weft gripper comprises an iron core and an electrified coil, and the iron core and the electrified coil are arranged on two sides of the opening direction of the hidden jaw. Before the weft is handed over, the opener is electrified with the coil, the iron core attracts the magnet, the magnet drives the hidden jaw to open, and the elastic element is compressed; after the weft gripper clamps the weft, the coil is powered on to cut off the power, the magnets attract each other, the jaw is hidden to be closed, and the weft is firmly clamped. The mechanical contact is avoided to open the hidden jaw, the weft clamping efficiency is improved, and the service life of the weft clamping device is prolonged.
Description
Technical Field
The invention belongs to the technical field of electromagnetic weft insertion, and particularly relates to a weft clamping device, an opener and a weft clamping method of the electromagnetic weft insertion.
Background
The existing weft gripper (shuttle) consists of a shell and a clamp (shuttle clamp), wherein the clamp is arranged in an inner cavity of the shell, and the weft yarn on one side of the loom is taken to the other side through a hidden jaw of the clamp. Before weft insertion, the clamp is opened by the shuttle clamp pressing rod, the hidden jaw on the clamp is opened immediately to carry out weft transfer with a weft delivering device, and the hidden jaw is closed after the shuttle yarn is clamped and then enters a weft insertion working stroke. Wherein, the mode that the hidden jaw of the shuttle clamp is opened by adopting the mode that the direct contact is driven by external force to open the hidden jaw of the shuttle clamp has a plurality of defects: the surface of the weft thread holder is stressed intensively and is easy to damage, the service life is shortened, the shuttle is easy to deviate from a weft insertion route, the maintenance cost is increased, and the weft insertion efficiency is influenced.
Disclosure of Invention
The invention provides an electromagnetic weft insertion weft gripper, an electromagnetic weft insertion opener and a weft insertion method.
The electromagnetic weft insertion weft gripper comprises a weft gripper shell and a weft gripper clamp, wherein the weft gripper clamp is arranged in the weft gripper shell, the weft gripper clamp comprises a hidden jaw and a clamping arm, the weft gripper clamp further comprises an elastic element and two magnets, the elastic element is fixedly connected between the clamping arms, the two magnets are respectively arranged on two opposite outer sides of the hidden jaw, and the polarities of the opposite ends of the magnets are different.
Furthermore, groove holes for placing magnets are arranged on two outer sides of the hidden jaw.
Furthermore, the inner side of the clamping arm is provided with a U-shaped opening for fixing the elastic element.
The opener of the electromagnetic weft insertion weft gripper comprises a pair of electromagnetic assemblies, wherein the electromagnetic assemblies are symmetrically arranged at two sides of the opening direction of the hidden jaw, and the electromagnetic assemblies attract the magnet of the hidden jaw to open the hidden jaw in order to generate electromagnetic force after being electrified.
Further, the electromagnetism subassembly includes electromagnetic means, mounting groove, electromagnetic means fixed mounting be in the mounting groove, the mounting groove sets up at weft clamping device, electromagnetic means includes iron core, circular telegram coil winding is on the iron core, the iron core axis coincides with magnet horizontal center line.
Furthermore, the placing groove comprises a mounting hole and a wire guide hole, an electrified coil of the electromagnetic device penetrates through the wire guide hole and is connected with external electrified equipment, and the iron core penetrates through the mounting hole and is fixed.
The weft clamping method of the electromagnetic weft insertion gripper for realizing the third aim of the invention comprises the following steps:
(1) when the weft is to be delivered to the electromagnetic weft insertion weft gripper, the electrified coil of the opener of the weft gripper is connected with a power supply, the iron core attracts the magnet on the clamp of the weft gripper, the magnet drives the hidden jaw to open, and the elastic element between the two clamp arms is compressed;
(2) after the weft is fed into the electromagnetic weft insertion gripper, the power supply connected with the electrified coil is cut off;
(3) the elastic piece recovers the shape and extends, and the two magnets attract each other to drive the hidden jaw to close so as to clamp the weft yarn firmly.
Further, in the step (3), when the coil is powered off, the reverse electricity is applied.
After the technical scheme is adopted, the invention has the following advantages:
the invention adopts a non-contact weft clamping and handing-over method, when the weft flies to the place for clamping the weft, the electrified coil is electrified, the weft clamp is opened under the driving of electromagnetic force, the electrified coil is powered off after the weft reaches the weft clamp, the weft clamp is closed under the action of the elastic element, and the process of clamping the weft is rapidly completed by the attraction of the magnet, so that the weft insertion efficiency is more efficient, the service life of the weft clamp is prolonged, and the problems of weft insertion track deviation and the like caused by mechanical contact are avoided.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of the electromagnetic weft insertion gripper and opener according to the present invention in use;
FIG. 2 is a schematic view of the electromagnetic weft insertion gripper clamp (without magnets mounted) of the present invention;
FIG. 3 is a schematic view of the mounting groove of the opener of the electromagnetic weft insertion gripper according to the present invention;
FIG. 4 is a flow chart of the weft insertion method of the electromagnetic weft insertion gripper of the present invention.
Wherein: 1-gripper clamp, 11-blind jaw, 12-gripper arm, 13-elastic element, 14, 15-magnet, 16-groove hole, 2-opener, 212-mounting groove, 2111-iron core, 2112-energized coil, 2121-mounting hole, 122-wire guide.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments.
As shown in figure 1, the electromagnetic weft insertion weft gripper comprises a weft gripper shell and a weft gripper clamp 1, the weft gripper clamp 1 is arranged in the weft gripper shell, the weft gripper clamp 1 comprises a hidden jaw 11, a clamping arm 12 and an elastic element spring 13, the inner side of the clamping arm 12 is provided with a U-shaped opening for fixing the spring 13, the hidden jaw 11 comprises two magnets 14 and 15, two outer sides of the hidden jaw 11 are provided with two groove holes 16, two magnets 15 are arranged in the groove holes 16, the polarities of the magnets 14 and the near ends of the magnets 15 are opposite, namely the polarity of the end of the magnet 14 close to the magnet 15 is N (or S), the polarity of the end of the magnet 15 close to the magnet 14 is S (or N), and when non-weft threads are crossed, the hidden jaw is under the action of the magnets
It will also be firmly secured.
The opener 2 of the electromagnetic weft insertion weft gripper is matched with the electromagnetic weft insertion weft gripper for use, and comprises a pair of electromagnetic assemblies arranged on two sides of an electromagnetic weft insertion gripper, the electromagnetic assemblies are arranged on two sides of a hidden jaw 11 in the opening and closing direction, the electromagnetic assemblies are used for enabling the opening and closing electromagnetic assemblies of the hidden jaw 11 to comprise electromagnetic devices and a mounting groove 212, the electromagnetic devices are fixedly installed in the mounting groove 212, each electromagnetic device comprises an iron core 2111 and an electrified coil 2112, the electrified coil 2112 is wound on the iron core 2111, the axis of the iron core 2111 is coincided with the central lines of magnets 14 and 15, the mounting groove 212 comprises a mounting hole 2121 and a wire guide hole 2122, the electrified coil 2112 of the electromagnetic device 211 penetrates through the wire guide hole 2122 to be connected with external electrified equipment, and the iron core 2111 penetrates through the mounting hole 2121 to be fixed.
The weft clamping method of the electromagnetic weft insertion weft gripper comprises the following steps:
(1) when the weft is delivered to the concealed jaw 11 of the electromagnetic weft insertion gripper by a weft delivery device of the electromagnetic weft insertion loom, a power supply coil 2112 in the electromagnetic device 211 is powered on, magnets 14 and 15 of the concealed jaw 11 are attracted through an iron core 2111, the magnets 14 and 15 drive the concealed jaw 11 to open, and meanwhile, a spring 13 between two clamping arms 12 is compressed;
(2) when the weft is fed into the blind jaw 11, the power supply connected to the energizing coil 2112 is cut off;
(3) the spring 13 restores the deformation and extends, the magnets 14 and 15 of the hidden jaw 11 attract each other, finally the hidden jaw 11 is driven to close, and the weft clamp 1 clamps the weft yarn firmly.
In the step (3), when the coil is powered off, reverse electricity can be applied, so that the closing speed of the jaw is higher.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (3)
1. An electromagnetic weft insertion and weft insertion device comprises an electromagnetic weft insertion and weft insertion device and an opener for the electromagnetic weft insertion and weft insertion device, wherein the electromagnetic weft insertion and weft insertion device comprises a weft insertion device shell and a weft insertion device clamp (1), the weft insertion device clamp (1) is arranged in the weft insertion device shell, the weft insertion device clamp (1) comprises a hidden jaw (11) and a clamping arm (12), and the electromagnetic weft insertion and weft insertion device is characterized in that the weft insertion device clamp (1) further comprises an elastic element (13) and two magnets (14 and 15), the elastic element (13) is fixedly connected between the clamping arm (12), the two magnets (14 and 15) are respectively arranged on two opposite outer sides of the hidden jaw (11), and the polarities of the opposite near ends of the two magnets (14 and 15) are different;
two outer sides of the hidden jaw (11) are provided with groove holes (16) for placing magnets;
the inner side of the clamping arm (12) is provided with a U-shaped opening for fixing an elastic element; the clamping arm (12) is of a Y-shaped structure;
the opener (2) for the electromagnetic weft insertion gripper comprises a pair of electromagnetic assemblies, wherein the electromagnetic assemblies are symmetrically arranged on two sides of the opening direction of a hidden jaw (11);
the electromagnetic assembly comprises an electromagnetic device and a placement groove (212), the electromagnetic device is fixedly installed in the placement groove (212), the electromagnetic device comprises an iron core (2111) and an electrified coil (2112), the electrified coil (2112) is wound on the iron core (2111), and the axis of the iron core (2111) is overlapped with the horizontal central line of the magnets (14 and 15);
the mounting groove (212) comprises a mounting hole (2121) and a wire guide hole (2122), the energizing coil (2112) penetrates through the wire guide hole (2122), and the iron core (2111) penetrates through the mounting hole (2121) to be fixed.
2. A weft insertion method of the electromagnetic weft insertion device according to claim 1, comprising the steps of:
(1) when the weft is to be delivered to the electromagnetic weft insertion weft gripper, an energizing coil (2112) of an opener of the electromagnetic weft insertion weft gripper is powered on, magnets (14, 15) on a clamp of the weft insertion weft gripper are attracted through an iron core (2111), the magnets (14, 15) drive a hidden jaw (11) to be opened, and an elastic element (13) between two clamp arms (12) is compressed;
(2) after the weft is fed into the electromagnetic weft insertion gripper, the power supply connected with the electrified coil (2112) is cut off;
(3) the elastic element (13) restores the shape, and the two magnets (14 and 15) attract each other to drive the hidden jaw (11) to close so as to clamp the weft yarn firmly.
3. A weft insertion method of an electromagnetic weft insertion device according to claim 2: characterized in that, in the step (2), when the energizing coil (2112) is de-energized, reverse electricity is applied.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910830740.0A CN110670208B (en) | 2019-09-04 | 2019-09-04 | Electromagnetic weft insertion weft gripper, opener and weft gripping method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910830740.0A CN110670208B (en) | 2019-09-04 | 2019-09-04 | Electromagnetic weft insertion weft gripper, opener and weft gripping method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110670208A CN110670208A (en) | 2020-01-10 |
| CN110670208B true CN110670208B (en) | 2022-03-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910830740.0A Active CN110670208B (en) | 2019-09-04 | 2019-09-04 | Electromagnetic weft insertion weft gripper, opener and weft gripping method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110670208B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114717726B (en) * | 2022-03-21 | 2023-05-23 | 武汉纺织大学 | Traveling type intelligent textile system |
| CN114575020B (en) * | 2022-03-21 | 2023-05-23 | 武汉纺织大学 | Loom with automatic weft insertion device |
| CN114606626B (en) * | 2022-03-21 | 2023-01-17 | 武汉纺织大学 | Electromagnetic drive's super wide breadth electromagnetism wefting insertion system |
| CN114606625B (en) * | 2022-03-21 | 2023-05-23 | 武汉纺织大学 | Textile system for automatically handing-over weft yarns |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07331558A (en) * | 1994-06-06 | 1995-12-19 | Toyota Autom Loom Works Ltd | Weft-insertion method for rapier loom and apparatus therefor |
| FR2783842A1 (en) * | 1998-09-30 | 2000-03-31 | Icbt Diederichs Sa | DEVICE FOR INSERTING THE WEFT YARN |
| DE10244694B4 (en) * | 2002-09-18 | 2005-01-20 | Lindauer Dornier Gmbh | Method for holding a weft thread in the region of a main nozzle of a jet loom and jet loom for carrying out the method |
| DE10247375A1 (en) * | 2002-10-10 | 2004-05-06 | Lindauer Dornier Gmbh | Weft gripper/cutter, at a gripper loom, has a lever and a spring to tense a yarn clamping arm which is released through an auxiliary energy supply to open the yarn clamp |
| DE102006025968B3 (en) * | 2006-06-02 | 2007-11-29 | Lindauer Dornier Gmbh | Reliable clamping of weft thread in jet loom, especially air jet loom, by use of movable clamping member with clamping force magnetically reinforced in thread clamping position |
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- 2019-09-04 CN CN201910830740.0A patent/CN110670208B/en active Active
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| CN110670208A (en) | 2020-01-10 |
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Effective date of registration: 20231107 Address after: 710000, Room 404-4, 4th Floor, Building 3, Fengyue Yunchuang Center, Hanchi 1st Road, Haojing Avenue, Fengdong New City, Xixian New District, Xi'an City, Shaanxi Province Patentee after: Shaanxi Zhitong Lingshi Equipment Technology Co.,Ltd. Address before: No.19, Jinhua South Road, Beilin District, Xi'an, Shaanxi 710000 Patentee before: XI'AN POLYTECHNIC University |