CN213266896U - Electromagnetic weft insertion device - Google Patents
Electromagnetic weft insertion device Download PDFInfo
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- CN213266896U CN213266896U CN202021497194.8U CN202021497194U CN213266896U CN 213266896 U CN213266896 U CN 213266896U CN 202021497194 U CN202021497194 U CN 202021497194U CN 213266896 U CN213266896 U CN 213266896U
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- electromagnetic
- rapier head
- warp
- electrode group
- weft insertion
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Abstract
The utility model discloses an electromagnetic weft insertion device, which comprises an electromagnetic rapier head used for positive weft insertion of weft yarns; the electromagnetic guide rail is used for enabling the electromagnetic rapier head to suspend in the warp fork and driving the electromagnetic rapier head to horizontally pass through the warp fork; the guide mechanism is used for guiding the electromagnetic rapier head to smoothly enter the warp fork; and the driving mechanism drives the electromagnetic rapier head penetrating out of the warp fork opening to move to an initial position so as to realize active weft insertion of the electromagnetic rapier head circulation. Through the structure, the electromagnetic rapier head does not have friction or rarely has friction with warp yarns in the weft insertion process, so that the problems of overheating and serious abrasion of the electromagnetic rapier head due to friction are solved, the service time of the electromagnetic rapier head can be greatly prolonged, and the quality stability of woven fabrics is ensured.
Description
Technical Field
The utility model relates to the field of textile machinery, especially an electromagnetism wefting insertion device.
Background
Textile machines are the means and material bases for the textile industry, and their level, quality and weaving costs are directly related to the development of the textile industry. Conventional looms are typically rapier looms, water jet looms, and air jet looms. The rapier loom has the advantages that the rapier head and the rapier tape are adopted for positive weft insertion, the rapier loom has strong variety adaptability and can adapt to weft insertion of various yarns, and the rapier loom also has obvious advantages in the aspect of multi-color weft weaving and can produce yarn dyed products of 16-color weft yarns. However, the rapier still has a certain problem in the production process, and the most main problem is that the rapier and the rapier tape are contacted with the warp yarns in the weft insertion process to easily generate excessive heat, so that the rapier and the rapier tape are seriously worn, and the weaving quality of the fabric is finally influenced.
SUMMERY OF THE UTILITY MODEL
In view of the above, the utility model aims to provide an electromagnetism weft insertion device can reduce the self wearing and tearing of weft insertion in-process weft insertion device effectively, and then guarantees the stability that the surface fabric weaves the quality.
In order to achieve the above purpose, the technical scheme of the utility model is that:
an electromagnetic weft insertion device comprises
The electromagnetic rapier head is used for positive weft insertion of weft yarns;
the electromagnetic guide rail is used for enabling the electromagnetic rapier head to suspend in the warp fork and driving the electromagnetic rapier head to horizontally pass through the warp fork;
the guide mechanism is used for guiding the electromagnetic rapier head to smoothly enter the warp fork;
and the driving mechanism drives the electromagnetic rapier head penetrating out of the warp fork opening to move to an initial position so as to realize active weft insertion of the electromagnetic rapier head circulation.
Furthermore, the electromagnetic guide rail comprises a bracket, the bracket is positioned below the warp and horizontally arranged along the width direction of the fabric, a plurality of magnetic conduction columns are uniformly distributed on the bracket along the length direction of the bracket, and excitation coils are wound on the magnetic conduction columns;
the electromagnetic rapier head comprises a shell, a shuttle clip is arranged at the front end of the shell, and a permanent magnet is arranged on the lower surface of the shell; the permanent magnet is in a suspension and high-speed moving state under the action of the magnetic conduction column of the excitation.
Furthermore, guide grooves are horizontally arranged on two sides of the magnetic conduction column; the lower extreme of casing is provided with the conducting bar along the symmetry of casing length direction, and the conducting bar sets up in the guide slot and has certain clearance with the guide slot.
Furthermore, the driving mechanism comprises a driving wheel, a driven wheel, a conveying belt wound on the driving wheel and the driven wheel, and an electromagnet fixedly arranged on the conveying belt; the driving wheel and the driven wheel are arranged on two sides below the warp, the driving wheel is fixedly connected with the driving motor, a first electrode group is arranged on a rim of the driving wheel in a ring mode, a second electrode group is arranged on a side face, back to the driving motor, of the driving wheel in a ring mode, and the first electrode group is communicated with the second electrode group; a third electrode group is arranged on the inner surface of the conveyor belt, the third electrode group is opposite to the first electrode group, and the electromagnet is communicated with the third electrode group; when the electromagnetic rapier head enters the warp fork, the third electrode group is disconnected with the first electrode group.
Furthermore, the guide mechanism comprises guide blocks symmetrically arranged at two ends of the electromagnetic guide rail, the cross section of each guide block is in a right trapezoid shape, and the inclined plane of the outer side of each guide block gradually decreases from one side close to the electromagnetic guide rail to one side far away from the electromagnetic guide rail; the upper surface height of the guide block is flush with the lower bottom surface of the electromagnetic rapier head, and the lower bottom surface of the guide block is flush with the upper surface of the electromagnet.
The working principle is as follows: the electromagnetic rapier head moves rapidly along with the electromagnet on the driving mechanism outside the warp fork under the action of the driving mechanism, when the electromagnetic rapier head moves to a set position, the electromagnetic rapier head clamps weft yarns, then the electromagnetic rapier head is separated from the electromagnet under the action of the guiding mechanism, then the electromagnetic rapier head enters the warp fork under the action of inertia, after the electromagnetic rapier head enters the warp fork, the excitation coils wound on the excitation columns are sequentially electrified along with the advance of the electromagnetic rapier head, and then a magnetic field capable of floating the electromagnetic rapier head is generated. Meanwhile, because the excitation coils are sequentially electrified, the magnetic field generated by the excitation coils sequentially moves forwards along with the electromagnetic rapier head, and the magnetic field can drive the electromagnetic rapier head to keep moving at a high speed. And when the electromagnetic rapier head moves out of the warp fork, the shuttle clamp is extruded by the shuttle clamp pressing rod to be opened, weft yarns fall out of the shuttle clamp, and weft insertion is completed. At the moment, the electromagnetic rapier head enters the guide mechanism and then slides along the guide mechanism to the electromagnet, then the electromagnetic rapier head and the electromagnet are attracted again, and the attracted electromagnetic rapier head returns to the initial position under the driving of the driving mechanism to prepare for next weft insertion.
Has the advantages that: through the structure, the electromagnetic rapier head does not have friction or rarely has friction with warp yarns in the weft insertion process, so that the problems of overheating and serious abrasion of the electromagnetic rapier head due to friction are solved, the service time of the electromagnetic rapier head can be greatly prolonged, and the quality stability of woven fabrics is ensured.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic diagram of the structure of an electromagnetic rapier head;
FIG. 3 is a top view of FIG. 2;
FIG. 4 is a schematic diagram of the structure of the electromagnetic rapier head on the electromagnetic guide rail;
FIG. 5 is a schematic view of an electromagnetic rapier head as it passes through a warp fork;
FIG. 6 is a schematic view of the drive mechanism;
figure 7 is a cross-sectional view of the drive wheel.
Reference numerals: 1. the electromagnetic device comprises an electromagnetic arrow 11, a shell 12, a shuttle clamp 13, a permanent magnet 14, a conducting bar 2, an electromagnetic guide rail 21, a bracket 22, a magnetic pole 23, an excitation coil 24, a guide groove 3, a guide mechanism 31, a guide block 4, a driving mechanism 41, a driving wheel 42, a driven wheel 43, a transmission belt 44, an electromagnet 45, a driving motor 46, a first electrode group 47, a second electrode group 48, a third electrode group 5, a shuttle clamp compression bar 6 and a weft feeder.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
An electromagnetic weft insertion device as shown in fig. 1 to 7 includes an electromagnetic rapier head 1, an electromagnetic guide rail 2, a guide mechanism 3, and a drive mechanism 4. Wherein, the electromagnetic rapier head 1 is used for weft yarn positive weft insertion; the electromagnetic guide rail 2 is used for guiding the electromagnetic rapier head to suspend and horizontally move in the warp fork; the driving mechanism 3 is used for guiding the electromagnetic rapier to smoothly enter the warp fork and smoothly attract with the driving mechanism after coming out of the warp fork; the driving mechanism is used for driving the electromagnetic rapier head penetrating out of the warp fork opening to move to an initial position and enabling the electromagnetic rapier head to enter the warp fork opening with inertia so as to realize active weft insertion of the electromagnetic rapier head circulation.
As a further modification of the above embodiment, specifically, the electromagnetic guide 2 includes a bracket 21 which is located below the warp yarn and horizontally disposed along the width direction of the fabric. Meanwhile, the plurality of magnetic conduction columns 22 are arranged on the bracket at equal intervals along the length direction of the bracket, are made of ferromagnetic materials, and can be demagnetized quickly after the excitation disappears. Meanwhile, the magnetic pole is surrounded by an excitation coil 23, and the power on/off of the excitation coil can be edited and set by an external PLC control mechanism (not shown in the figure). Meanwhile, the electromagnetic rapier head 1 specifically comprises a housing 11, the cross section of which is approximately in a U shape with a downward opening, a shuttle clamp 12 is fixedly arranged at the front end of the housing, and a permanent magnet 13 is fixedly arranged on the lower surface of the housing. Preferably, the permanent magnet is a neodymium magnet having an extremely strong magnetic property.
The working mode of the electromagnetic rapier head and the electromagnetic guide rail is as follows: the electromagnetic rapier head 1 moves rapidly under the action of the driving mechanism 4, when the electromagnetic rapier head moves to a set position, the shuttle clip is opened under the action of the shuttle clip pressing rod 5, then the weft yarn head in the weft delivery device 6 enters the shuttle clip, then the shuttle clip leaves the shuttle clip pressing rod, the shuttle clip is closed, and the weft yarn is clamped by the shuttle clip. The weft yarns are drawn out by the shuttle clips into the warp yarn forks. When the electromagnetic rapier head enters the warp fork, the excitation coils are sequentially electrified, so that a repulsive magnetic field is generated for the permanent magnet in the electromagnetic rapier head, and the electromagnetic rapier head is suspended in the radial fork. It should be noted that, along with the displacement of the permanent magnet, the direction of the current in the exciting coil is also changed correspondingly along with the change of the polarity of the permanent magnet. In addition, the power for the forward movement of the electromagnetic rapier head comes from the instant unbalance of the magnetic field caused by the fact that the excitation coils are sequentially powered on/off, the unbalanced magnetic field can enable the permanent magnet to move forward under the action of the magnetic field, and after the permanent magnet moves forward for a certain distance, the front excitation coil is powered on again to enable the acting force to be balanced again, the processes are performed alternately and rapidly, and the rapid movement of the electromagnetic rapier head in the warp fork is guaranteed.
As a further improvement of the above embodiment, in order to prevent the electromagnetic rapier moving at high speed from separating from the guide rail, guide grooves 24 are horizontally arranged on both sides of the magnetic conductive column 22; meanwhile, a pair of guide bars 14 are symmetrically provided at the lower end of the housing 11 along the longitudinal direction of the housing. The guide strip is positioned in the guide groove, and when the electromagnetic rapier head is in a suspension state under the action of the electromagnetic guide rail, the guide strip is not in contact with the guide groove, namely a certain gap exists between the guide strip and the guide groove, so that abrasion between the guide strip and the guide groove is prevented.
As a further improvement of the above embodiment, in order to reduce the interference of the driving mechanism to the electromagnetic rapier head after the electromagnetic rapier head enters the electromagnetic guide rail, the driving mechanism 4 includes a driving wheel 41, a driven wheel 42, a conveyor belt 43 wound around the driving wheel and the driven wheel, and an electromagnet 44 fixedly mounted on the conveyor belt. In addition, the driving device further comprises a driving motor 45, and an output shaft of the driving motor is coaxially connected with the driving wheel to drive the driving wheel to rotate rapidly. In addition, in order to make the electromagnet lose the electricity synchronously when the electromagnetic sword head enters the electromagnetic guide rail, thereby reducing the interference to the magnetic field of the electromagnetic guide rail, a first electrode group 46 is arranged on the rim of the driving wheel in a circumferential direction. Meanwhile, a second electrode group 47 is arranged on the side of the driving wheel opposite to the driving motor and is coaxial with the driving wheel. The first electrode group is communicated with the second electrode group through a lead. In addition, a third electrode set 48 is provided on the inner side of the conveyor belt, opposite to the first electrode set and in communication with the electromagnet fixed on the conveyor belt by means of a wire. It should be noted that the third electrode group is not two closed ring-shaped electrode rings, and when the electromagnetic rapier enters the electromagnetic guide rail, the third electrode group does not contact with the first electrode group. And when the electromagnetic rapier head leaves the electromagnetic guide rail, the third electrode group is contacted with the first electrode group again. And as a power supply for energizing the electromagnet to generate magnetism, the electromagnet is in contact with and conveyed to a second electrode group through an external annular electrode group (not shown in the figure).
As a further improvement of the above embodiment, the guide mechanism 3 is composed of two symmetrical guide blocks 31 disposed at both ends of the electromagnetic guide rail, and the cross section of the guide blocks is a right trapezoid. Specifically, the inclined surface of the guide block is located on the outer side, and gradually decreases from the side close to the electromagnetic guide rail to the side far from the electromagnetic guide rail 4. In addition, in order to ensure the smoothness of the electromagnetic rapier gripper entering the electromagnetic guide rail from the guide mechanism and being sucked onto the driving mechanism again by the guide mechanism, the upper surface of the guide block is higher than and level with the lower surface of the shell, and the lower surface of the guide block is higher than and level with the upper surface of the electromagnet on the driving mechanism.
Claims (5)
1. An electromagnetic weft insertion device, characterized in that: comprises that
The electromagnetic rapier head is used for positive weft insertion of weft yarns;
the electromagnetic guide rail is used for enabling the electromagnetic rapier head to suspend in the warp fork and driving the electromagnetic rapier head to horizontally pass through the warp fork;
the guide mechanism is used for guiding the electromagnetic rapier head to smoothly enter the warp fork;
and the driving mechanism drives the electromagnetic rapier head penetrating out of the warp fork opening to move to an initial position so as to realize active weft insertion of the electromagnetic rapier head circulation.
2. An electromagnetic weft insertion device according to claim 1, characterized in that: the electromagnetic guide rail comprises a bracket, the bracket is positioned below the warp and horizontally arranged along the width direction of the fabric, a plurality of magnetic conduction columns are uniformly distributed on the bracket along the length direction of the bracket, and excitation coils are wound on the magnetic conduction columns;
the electromagnetic rapier head comprises a shell, a shuttle clip is arranged at the front end of the shell, and a permanent magnet is arranged on the lower surface of the shell; the permanent magnet is in a suspension and high-speed moving state under the action of the magnetic conduction column of the excitation.
3. An electromagnetic weft insertion device according to claim 2, characterized in that: guide grooves are horizontally arranged on two sides of the magnetic conduction column; the lower extreme of casing is provided with the conducting bar along the symmetry of casing length direction, and the conducting bar sets up in the guide slot and has certain clearance with the guide slot.
4. An electromagnetic weft insertion device according to claim 3, characterized in that: the driving mechanism comprises a driving wheel, a driven wheel, a conveying belt wound on the driving wheel and the driven wheel and an electromagnet fixedly arranged on the conveying belt; the driving wheel and the driven wheel are arranged on two sides below the warp, the driving wheel is fixedly connected with the driving motor, a first electrode group is arranged on a rim of the driving wheel in a ring mode, a second electrode group is arranged on a side face, back to the driving motor, of the driving wheel in a ring mode, and the first electrode group is communicated with the second electrode group; a third electrode group is arranged on the inner surface of the conveyor belt, the third electrode group is opposite to the first electrode group, and the electromagnet is communicated with the third electrode group; when the electromagnetic rapier head enters the warp fork, the third electrode group is disconnected with the first electrode group.
5. An electromagnetic weft insertion device according to claim 4, characterized in that: the guide mechanism comprises guide blocks which are symmetrically arranged at the two ends of the electromagnetic guide rail, the section of each guide block is a right trapezoid, and the inclined plane of the outer side of each guide block gradually decreases from one side close to the electromagnetic guide rail to one side far away from the electromagnetic guide rail; the upper surface height of the guide block is flush with the lower bottom surface of the electromagnetic rapier head, and the lower bottom surface of the guide block is flush with the upper surface of the electromagnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021497194.8U CN213266896U (en) | 2020-07-27 | 2020-07-27 | Electromagnetic weft insertion device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021497194.8U CN213266896U (en) | 2020-07-27 | 2020-07-27 | Electromagnetic weft insertion device |
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| CN213266896U true CN213266896U (en) | 2021-05-25 |
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| CN202021497194.8U Active CN213266896U (en) | 2020-07-27 | 2020-07-27 | Electromagnetic weft insertion device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114606626A (en) * | 2022-03-21 | 2022-06-10 | 武汉纺织大学 | Electromagnetic drive's super wide breadth electromagnetism wefting insertion system |
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2020
- 2020-07-27 CN CN202021497194.8U patent/CN213266896U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114606626A (en) * | 2022-03-21 | 2022-06-10 | 武汉纺织大学 | Electromagnetic drive's super wide breadth electromagnetism wefting insertion system |
| CN114606626B (en) * | 2022-03-21 | 2023-01-17 | 武汉纺织大学 | Electromagnetic drive's super wide breadth electromagnetism wefting insertion system |
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