CN111321505A - AC ultra-wide electromagnetic drive weft insertion device, control system and control method - Google Patents

Abstract

The invention belongs to the technical field of textile equipment, and discloses an AC-type ultra-wide electromagnetic drive weft insertion device, a control system and a control method. The torsion shaft of machine energy conversion reduces the friction between the weft inserter and the shuttle guide by the weft inserter pulley installed on the electromagnetic weft insertion track, so that the loom can perform ultra-wide weft insertion at high speed; The braking device realizes the rapid braking of the weft inserter and supports the weft thread, and reduces the impact of the weft inserter. The electromagnetic weft insertion track of the invention is equipped with a weft inserter pulley to reduce the friction force between the weft inserter and the shuttle guide, so that the loom can perform ultra-wide weft insertion at high speed, and the width of the loom can be increased by 3m. The electromagnetic braking device is used to realize the rapid braking of the weft inserter and its holding of the weft, reduce the impact of the weft inserter, and improve the energy conversion efficiency of the loom.

Description

AC ultra-wide electromagnetic drive weft insertion device, control system and control method

technical field

The invention belongs to the technical field of textile equipment, and in particular relates to an AC type ultra-wide electromagnetic drive weft insertion device, a control system and a control method.

Background technique

At present, the existing ultra-wide looms include JAGER BK880 ultra-wide loom and P7300HP projectile loom. BK880 loom is a bidirectional rapier loom among shuttleless looms. The rapier of this loom starts from the center to insert the weft alternately to both sides, and the process of advancing the sword to one side is the retreating stroke of the other side.

The double-side weft feeding rapier loom has many parts, it is not only the weft receiving rapier, but also the weft feeding rapier, which is more complicated. complex. The sword belt belongs to the nature of the sword belt and needs to be replaced regularly. The P7300HP loom belongs to the gripper loom in the shuttleless loom. There is friction between the gripper and the guide shuttle, which will reduce the moving speed of the gripper. Secondly, the energy conversion efficiency of the torsion axis of this loom is low.

To sum up, the existing problems in the prior art are: (1) In the prior art, the weft insertion mechanism of the rapier loom is complicated and the energy conversion efficiency of the projectile loom is low. There is friction between the weft inserter and the shuttle guide, so that the loom cannot perform ultra-wide weft insertion at high speed, resulting in a low width of the loom. Moreover, the impact of the weft inserter in the prior art is large, and the energy conversion efficiency of the loom is low.

The difficulty of solving the above-mentioned technical problems: the weft inserter needs a great acceleration when it first starts to project. How to give the weft inserter a great acceleration through electromagnetic force in a short time is a difficult point.

The significance of solving the above technical problems: the use of electromagnetic force shuttle to replace the loom torsional axis shuttle to improve the energy utilization rate of the loom. The use of electromagnetic force to cast the shuttle is beneficial to reduce the running noise of the loom.

The use of electromagnetic drive weft insertion can theoretically break through the limitation of the width of the loom, making it possible to insert a wider weft.

SUMMARY OF THE INVENTION

In view of the problems existing in the prior art, the present invention provides an AC type ultra-wide electromagnetic drive weft insertion device, a control system and a control method. The invention adopts the alternating current electromagnetic weft insertion guide rail device to keep the weft inserter for reciprocating weft insertion at a constant speed. The electromagnetic braking device of the weft inserter is used to quickly complete the braking of the weft inserter and the clamping of the weft thread.

The present invention is achieved in this way, a control method of an AC type ultra-wide electromagnetic drive weft insertion device, comprising:

The AC electromagnetic weft insertion guide rail device is used to replace the weft insertion mechanism of the rapier loom and the torsion shaft of the projectile loom energy conversion. The friction between the sheets makes the loom carry out ultra-wide weft insertion at high speed;

And the electromagnetic braking device is used to realize the rapid braking of the weft inserter and the holding of the weft thread, so as to reduce the impact of the weft inserter.

Further, the control method of the AC type ultra-wide electromagnetic drive weft insertion device specifically includes:

Graphically operate the controller through the host computer, and send a power-on command to the controller through the network port to transmit control data;

The controller controls whether the first brake driver and the second brake driver are energized and braked according to the received signal of the position sensor of the weft inserter;

The controller judges the direction of weft insertion to the electromagnetic weft insertion rail by the power driver of the electromagnetic weft insertion rail through the input signal of the position sensor of the weft insertion device.

Further, the method for the controller to control the first brake driver and the second brake driver includes:

When the high-speed moving weft inserter passes through the electromagnetic weft insertion guide rail in the shed from the opposite side brake and enters the brake on the own side, the weft inserter rapidly decelerates under the action of the brake spring. When the weft inserter position sensor detects When the weft inserter reaches the braking point, the second driver of the brake controls the braking coil in the brake to energize, and the weft inserter is attracted to the braking point; then the weft insertion nozzle driver controls the weft insertion nozzle to spray the weft thread from the weft insertion nozzle. The weft inserter is advanced, and then the brake coil of the second brake driver is powered off;

The weft insertion device is ejected into the electromagnetic weft insertion guide rail by the braking spring without the attraction of the braking coil and the braking iron core.

Another object of the present invention is to provide a control system of an AC-type ultra-wide electromagnetic drive weft insertion device implementing the control method of the AC-type ultra-wide electromagnetic drive weft insertion device. The control system of the weft insertion device includes: upper computer, controller, brake 1 driver, brake 2 driver, electromagnetic weft insertion track power driver, weft insertion nozzle driver, weft insertion device position sensor 1, weft insertion device position sensor 2, brake Coils, electromagnetic weft insertion tracks and weft insertion nozzles;

The first brake driver, the second brake driver, the electromagnetic weft insertion track power driver, and the weft insertion nozzle driver are considered as a power switch. The large current used for driving is controlled by a small current from the controller.

Weft inserter position sensor 1. Weft inserter position sensor 2 is a proximity switch. When an object passes under the proximity switch, the level signal of the signal line of the proximity switch will change. After the motion controller detects that the signal of the proximity switch has changed will be dealt with accordingly.

The brake coil is wound with enameled wire. When the electromagnetic coil is energized, a magnetomotive force is generated on the iron core.

The electromagnetic weft insertion track is composed of a row of iron cores and coils.

The weft insertion nozzle is actually connected to the solenoid valve. When the weft insertion device is braked at the braking point, the controller can control the solenoid valve to inject the weft thread into the weft insertion device.

The upper computer performs graphic image operation on the controller, and sends a power-on command to the controller through the network port to transmit control data;

The controller controls whether the brake one driver and the brake two driver are energized to the brake coil according to the received signal of the position sensor of the weft inserter; The direction of the input alternating current of the electromagnetic weft insertion track;

A plurality of brake coils are respectively connected to the first brake driver and the second brake driver;

The electromagnetic weft insertion track power driver is connected with an AC power supply and the electromagnetic weft insertion track.

Further, the controller includes an RJ45 network port, a DB9 serial port, a RAM, an SD card, a sensor input interface, a weft selection signal input interface, and a driver signal output interface.

The RJ45 network port is an Ethernet connection port, which is connected to the network port of the PC. The RJ45 sends the received signal to the ZLAN module, and the ZLAN module converts the received signal into a UART signal and outputs it to the serial port of the microcontroller. The DB9 connector is connected to the serial port of the microcontroller through a TTL to 232 module. The RAM and SD card are connected to the microcontroller as the external memory of the microcontroller. The sensor input interface is connected to the INT pin of the microcontroller as an external interrupt input. Both the weft selection signal input interface and the drive signal output interface are connected to the common GPIO pins of the microcontroller.

Another object of the present invention is to provide an AC-type ultra-wide electromagnetic drive weft insertion device implementing the control method of the AC-type ultra-wide electromagnetic drive weft insertion device, the AC ultra-wide electromagnetic drive weft insertion device include:

The electromagnetic weft insertion guide rail includes a reed seat, a steel reed, an electromagnetic coil, an iron core, a weft inserter and a weft inserter pulley; the electromagnetic coil is wound on the iron core. The permanent magnet on the weft inserter interacts to push the weft inserter to move forward; the electromagnetic coil and the reed are fixed on the reed seat; the weft inserter pulley is used to reduce the weft inserter and the electromagnetic weft inserting guide rail friction;

The controller, when the loom performs the weft insertion movement, turns on the power supply to energize the coil on the iron core, and the weft inserter moves to the opposite side through the shed formed by the warp at a constant speed under the action of electromagnetic force.

Further, the weft inserter is located on the track formed by the iron cores on both sides; the iron cores on both sides of the weft inserter are wound with electromagnetic coils, and the electromagnetic coils are connected with alternating current;

The electromagnetic coil and the iron core interact with the two permanent magnets on the weft inserter according to a certain frequency, which changes the direction of the magnetic field to make the weft inserter move;

The permanent magnet S pole of the head of the weft inserter is attracted by the N pole of the electromagnet installed at the rear of the sled, and at the same time is repelled by the S pole of the electromagnet installed on the frame slightly ahead of the sley; When the shuttle reaches the next position, the current flowing in the coil is reversed, and the original N-pole coil becomes the S-pole coil; the gripper can continue to insert the weft forward due to the conversion of the electromagnetic polarity; the speed of the weft inserter is driven by the electrical energy. The converter adjusts the frequency and voltage regulation of the alternating current flowing in the coils on both sides.

Further, the brake device includes a brake coil, a brake iron core, a brake track, a brake spring, a weft insertion nozzle, a weft insertion position sensor, a weft insertion pulley, a weft insertion device, a brake frame and a constant weft storage. device;

There are a total of 6 brake coils and brake iron cores. In the weft inserter braking device, the weft inserter is attracted to the braking point. The materials of the brake track and the brake iron core are silicon steel sheets. or pure iron;

The brake track guides the weft inserter in the brake;

The brake spring is installed on the brake frame, in the brake, the kinetic energy of the weft inserter is converted into elastic potential energy, and the elastic potential energy is released after the action of clamping the weft thread is completed, and the weft inserter is ejected into the electromagnetic weft insertion guide rail;

The weft insertion nozzle is pierced with a weft thread, when the weft insertion device reaches the braking point, the weft insertion nozzle is inserted into the weft insertion port in the weft insertion device, the weft insertion nozzle is opened, and the weft thread is injected from the weft insertion nozzle into the weft insertion nozzle. weft inserter. The weft inserter position sensor is installed above the brake frame to detect whether the weft inserter reaches the braking point in the brake; the weft inserter pulley is installed between the brake track and the brake iron core, and is increased in the brake Friction between the weft inserter and the brake;

The constant weft feeder is installed outside the brake frame to store weft threads.

Another object of the present invention is to provide an information data processing terminal for realizing the control method of the AC type ultra-wide electromagnetic drive weft insertion device.

Another object of the present invention is to provide a computer-readable storage medium, including instructions, which, when run on a computer, cause the computer to execute the control method of the AC-type ultra-wide electromagnetic drive weft insertion device.

To sum up, the advantages and positive effects of the present invention are as follows: the present invention adopts an alternating current electromagnetic weft insertion guide rail device to replace the complex weft insertion mechanism of the rapier loom and the torsion shaft with low energy conversion efficiency of the gripper loom, and the electromagnetic induction A weft inserter pulley is installed on the weft track to reduce the friction between the weft inserter and the shuttle guide, so that the loom can perform ultra-wide weft insertion at high speed, and the width of the loom can be increased by 3m. The electromagnetic braking device is used to realize the rapid braking of the weft inserter and its support of the weft thread, reduce the impact of the weft inserter, and improve the energy conversion efficiency of the loom.

The following table is the comparative data of the present invention and the prior art:

Description of drawings

FIG. 1 is a schematic structural diagram of an AC ultra-wide electromagnetic weft insertion guide rail device provided by an embodiment of the present invention.

FIG. 2 is a schematic diagram of weft insertion of an AC-type ultra-wide electromagnetic weft insertion guide rail device provided by an embodiment of the present invention.

In the figure: (a) side view; (b) top view.

3 is a side view and a top view schematic diagram of an electromagnetic braking device for an AC type ultra-wide weft inserter provided by an embodiment of the present invention. In the figure: (A) side view; (B) top view.

4 is a schematic structural diagram of a weft inserter of an AC type ultra-wide electromagnetic drive weft insertion device provided by an embodiment of the present invention.

5 is a schematic diagram of a control system of an AC ultra-wide electromagnetic drive weft insertion device provided by an embodiment of the present invention.

FIG. 6 is a flowchart of a control method of an AC-type ultra-wide electromagnetic drive weft insertion device provided by an embodiment of the present invention.

FIG. 7 is a flowchart of a control method of an AC type ultra-wide electromagnetic drive weft insertion device provided by an embodiment of the present invention.

FIG. 8 is a simulation structural diagram of an electromagnetic track provided by an embodiment of the present invention.

FIG. 9 is a diagram of the magnetic induction intensity of the permanent magnet in the casing of the weft inserter provided by the embodiment of the present invention.

FIG. 10 is a diagram of the electromagnetic force experienced by the permanent magnet on the left side of the weft inserter provided by the embodiment of the present invention.

FIG. 11 is a diagram of the electromagnetic force experienced by the permanent magnet in the middle of the weft inserter provided by the embodiment of the present invention.

FIG. 12 is an electromagnetic force diagram of the permanent magnet on the right side of the weft inserter provided by the embodiment of the present invention.

Detailed ways

In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

In the prior art, the weft insertion mechanism of the rapier loom is complicated and the energy conversion efficiency of the projectile loom is low. There is friction between the weft inserter and the shuttle guide, so that the loom cannot perform ultra-wide weft insertion at high speed, resulting in a low width of the loom. Moreover, the impact of the weft inserter in the prior art is large, and the energy conversion efficiency of the loom is low.

In view of the problems existing in the prior art, the present invention provides an AC ultra-wide electromagnetic drive weft insertion device, a control system and a control method. The present invention is described in detail below with reference to the accompanying drawings.

As shown in Figure 1, an AC type ultra-wide electromagnetic drive weft insertion device includes an electromagnetic weft insertion guide rail. The electromagnetic weft insertion guide includes a reed seat, a steel reed (not shown), an electromagnetic coil, an iron core, a weft inserter and a weft inserter pulley. The current passed through the electromagnetic coil is alternating current, and the electromagnetic coil is wound on the iron core. When the electromagnetic coil is energized, the electromagnetic coil interacts with the permanent magnet on the weft inserter to push the weft inserter to move forward. The iron core material is silicon steel sheet or pure iron, and its function in the electromagnetic drive weft insertion device is to form a rigid magnetic flux loop with the magnetic field generated by the electromagnetic coil. There are two permanent magnets on the weft inserter. The iron core, the electromagnetic coil and the steel reed are all fixed on the reed base. The sled is a material with low magnetic permeability and will not be magnetized. The function of the weft inserter pulley is to reduce the friction between the weft inserter and the electromagnetic weft insertion guide rail. When the loom is about to insert weft, the controller turns on the power supply to energize the coil on the iron core, and the weft inserter moves to the opposite side through the shed formed by the warp at a constant speed under the action of electromagnetic force.

As shown in Figure 2, the weft inserter is located on the track formed by the iron cores on both sides. The iron cores on both sides of the weft inserter are wound with electromagnetic coils, and the electromagnetic coils are supplied with alternating current of a certain frequency and voltage. As shown in the top view of FIG. Permanent magnets that change the direction of the magnetic field. The permanent magnet with the changing magnetic field direction interacts with the two permanent magnets on the weft inserter to make the weft inserter move. The advance of the weft inserter is because the S pole of the permanent magnet on the head of the weft inserter is attracted by the N pole of the electromagnet installed at the rear of the sled, and at the same time, it is installed on the frame slightly ahead of the sled. The electromagnet S pole s repelled. When the gripper reaches the next position, the current flow in the coil is reversed. The result is that the original N-pole coil is now an S-pole coil. vice versa. In this way, the gripper can continue to insert the weft forward due to the reversal of the electromagnetic polarity. The speed of the weft inserter is adjusted by the power converter to adjust the frequency and voltage of the alternating current flowing in the coils on both sides.

As shown in Figure 3, the brake device includes a brake coil, a brake iron core, a brake track, a brake spring, a weft insertion nozzle, a weft insertion position sensor, a weft inserter pulley, a weft inserter, and a brake frame and constant weft feeder. There are 6 brake coils and brake iron cores in total, and their function in the weft inserter braking device is to attract the weft inserter on the braking point. The materials are all silicon steel sheets or pure iron. The function of the brake track in the brake is to guide the weft inserter. The brake spring is installed on the brake frame, and its function in the brake is to convert the kinetic energy of the weft inserter into elastic potential energy, and play a buffering role to prevent the weft inserter from being severely impacted. After completing the action of clamping the weft thread, the elastic potential energy is released, and the weft inserter is ejected into the electromagnetic weft insertion guide rail. The weft insertion nozzle is pierced with a weft thread. When the weft insertion device reaches the braking point, the weft insertion nozzle is inserted into the weft insertion port in the weft insertion device. The weft insertion nozzle is injected into the weft inserter. The weft inserter position sensor is installed above the brake frame (not shown), and its function in the brake is to detect whether the weft inserter reaches the braking point. The weft inserter pulley is installed between the brake track and the brake iron core, and the function of the weft inserter in the brake is the friction force between the weft inserter and the brake. The constant weft feeder is installed outside the brake frame. The role played in this device is to store the weft. The specific working process of the brake is as follows. When the high-speed moving weft inserter passes through the electromagnetic weft insertion guide rail in the shed from the opposite side brake and enters the brake on the own side, the weft inserter rapidly decelerates under the action of the brake spring. When the weft inserter position sensor detects that the weft inserter reaches the braking point, the brake driver controls the braking coil in the brake to energize, and the weft inserter is attracted to the braking point. After that, the driver of the weft insertion nozzle controls the weft insertion nozzle to inject the weft thread from the weft insertion nozzle into the weft inserter, and the brake driver controls the power of the brake coil at this time. The weft inserter is quickly ejected into the electromagnetic weft insertion guide rail by the brake spring without the attraction of the brake coil and the brake iron core.

As shown in FIG. 4 , the weft inserter includes three permanent magnets, a weft pressing spring, a weft inlet and a bobbin case (not shown). The magnetization direction of the permanent magnet is shown in the figure. The weft insertion port is the place where the weft insertion nozzle is inserted. The weft pressing spring piece is pushed open by the weft insertion nozzle after the weft insertion nozzle is inserted into the weft inlet, and then the weft thread is injected into the weft inserter under the jet of the weft insertion nozzle.

As shown in Figure 5, the AC type ultra-wide electromagnetic drive weft insertion control system includes a host computer, a controller, a brake driver, a brake driver two, an electromagnetic weft insertion track power driver, a weft insertion nozzle driver, and a position of the weft inserter. Sensor 1, position sensor 2 of weft inserter, brake coil, electromagnetic weft insertion track and weft insertion nozzle. The host computer, as the brain of the control system, can perform graphic and graphical operations on the controller, and the host computer sends a power-on command to the controller through the network port, and transmits control data. The controller includes RJ45 network port, DB9 serial port, RAM, SD card, sensor input interface, selected signal input interface, and driver signal output interface. The controller controls whether the brake 1 driver and the brake 2 driver energize the brake coil according to the received signal from the position sensor of the weft inserter. Three brake coils are respectively connected to the first brake driver and the second brake driver. The electromagnetic weft insertion track power driver is connected with an AC power supply and the electromagnetic weft insertion track. The controller judges the direction in which the electromagnetic weft insertion track power driver inputs alternating current to the electromagnetic weft insertion track through the input and output signals of the position sensor of the weft inserter.

As shown in FIG. 6 , an embodiment of the present invention provides a control method for an AC-type ultra-wide electromagnetic drive weft insertion device, including:

S101 , perform graphic image operation on the controller through the upper computer, and send a power-on command to the controller through a network port to transmit control data.

S102, the controller controls whether the first brake driver and the second brake driver energize the brake coil and perform braking according to the received signal from the position sensor of the weft inserter.

S103, the controller judges the direction in which the electromagnetic weft insertion track power supply driver inputs the alternating current to the electromagnetic weft insertion track through the in and out signal of the weft inserter position sensor.

In step S102, the method for the controller to control the first brake driver and the second brake driver includes: when the weft inserter moving at high speed passes through the electromagnetic weft insertion guide rail in the shed from the brake on the opposite side, and enters the brake on the own side, the weft inserter moves at the same side. Rapid deceleration under the action of the brake spring, when the position sensor of the weft inserter detects that the weft inserter reaches the braking point, the brake driver controls the braking coil in the brake to energize, and the weft inserter is attracted to the braking point; then The weft insertion nozzle driver controls the weft insertion nozzle to inject the weft thread from the weft insertion nozzle into the weft inserter, and the brake driver controls the power off of the brake coil.

The weft insertion device is ejected into the electromagnetic weft insertion guide rail by the braking spring without the attraction of the braking coil and the braking iron core.

FIG. 7 is a flowchart of a control method of an AC type ultra-wide electromagnetic drive weft insertion device provided by an embodiment of the present invention.

The present invention will be further described below in conjunction with specific simulations.

Fig. 8 is a simulation structure diagram of an electromagnetic track, wherein the upper frame is an iron core, the wide frame is an electromagnetic coil, and the lower frame is a weft inserter housing, and the permanent magnet is in the weft inserter housing.

FIG. 9 is a diagram of the magnetic induction intensity of the permanent magnet in the casing of the weft inserter. The arrow on the permanent magnet indicates the magnetic induction intensity of the permanent magnet.

Figure 10 shows the electromagnetic force on the permanent magnet on the left side of the weft inserter, of which the main force is the force along the Z axis, which is about -6.9N.

Figure 11 shows the electromagnetic force on the permanent magnet in the middle of the weft inserter. The main force is the force along the Z axis, which is about -6.1N.

Figure 12 shows the electromagnetic force on the permanent magnet on the right side of the weft inserter. The main force is the force along the Z axis, which is about -5.7N. The total electromagnetic force experienced by the three permanent magnets is 18.7N. The mass of the weft inserter is 20g. The friction coefficient is 0.17. Therefore, the friction force on the weft inserter is 0.0034N, so the electromagnetic force on the weft inserter is far greater than the friction force on the weft inserter.

In the above-mentioned embodiments, it may be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented in whole or in part in the form of a computer program product, the computer program product includes one or more computer instructions. When the computer program instructions are loaded or executed on a computer, all or part of the processes or functions described in the embodiments of the present invention are generated. The computer may be a general purpose computer, special purpose computer, computer network, or other programmable device. The computer instructions may be stored in or transmitted from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions may be downloaded from a website site, computer, server or data center Transmission to another website site, computer, server, or data center by wire (eg, coaxial cable, fiber optic, digital subscriber line (DSL), or wireless (eg, infrared, wireless, microwave, etc.)). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server, a data center, or the like that includes an integration of one or more available media. The usable media may be magnetic media (eg, floppy disks, hard disks, magnetic tapes), optical media (eg, DVD), or semiconductor media (eg, Solid State Disk (SSD)), among others.

The above descriptions are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention shall be included in the protection of the present invention. within the range.

Claims (10)

1. a control method of an AC-type ultra-wide electromagnetic drive weft insertion device, is characterized in that, the control method of the AC-type ultra-wide electromagnetic drive weft insertion device comprises: The AC electromagnetic weft insertion guide rail device is used to replace the weft insertion mechanism of the rapier loom and the torsion shaft of the projectile loom energy conversion. The friction between the sheets makes the loom carry out ultra-wide weft insertion at high speed; And the electromagnetic braking device is used to realize the rapid braking of the weft inserter and the holding of the weft thread, so as to reduce the impact of the weft inserter. 2. The control method of the AC-type ultra-wide electromagnetic drive weft insertion device as claimed in claim 1, wherein the control method of the AC-type ultra-wide electromagnetic drive weft insertion device specifically comprises: Graphically operate the controller through the host computer, and send a power-on command to the controller through the network port to transmit control data; The controller controls whether the first brake driver and the second brake driver energize the brake coil and brake the weft inserter according to the received signal of the position sensor of the weft inserter; The controller judges the direction in which the electromagnetic weft insertion track power driver inputs alternating current to the electromagnetic weft insertion track through the input and output signals of the position sensor of the weft inserter. 3. the control method of the AC type ultra-wide electromagnetic drive weft insertion device as claimed in claim 1, is characterized in that, the method that controller controls brake one driver and brake two driver comprises: When the high-speed moving weft inserter passes through the electromagnetic weft insertion guide rail in the shed from the opposite side brake and enters the brake on the own side, the weft inserter rapidly decelerates under the action of the brake spring. When the weft device reaches the braking point, the brake driver controls the brake coil in the brake to energize, and the weft inserter is attracted to the braking point; then the weft insertion nozzle driver controls the weft insertion nozzle to inject the weft thread from the weft insertion nozzle. Weft device, the brake driver controls the power off of the brake coil; The weft insertion device is ejected into the electromagnetic weft insertion guide rail by the braking spring without the attraction of the braking coil and the braking iron core. 4. A control system for an AC-type ultra-wide electromagnetically driven weft insertion device for implementing the control method for an AC-type ultra-wide electromagnetically driven weft insertion device according to any one of claims 1 to 3, wherein the AC type is characterized in that: The control system of the ultra-wide electromagnetic drive weft insertion device includes: host computer, controller, brake 1 driver, brake 2 driver, electromagnetic weft insertion track power driver, weft insertion nozzle driver, weft inserter position sensor 1, weft inserter Position sensor 2, brake coil, electromagnetic weft insertion track and weft insertion nozzle; The upper computer performs graphic image operation on the controller, and sends a power-on command to the controller through the network port to transmit control data; The controller controls whether the brake one driver and the brake two driver are energized to the brake coil according to the received signal of the position sensor of the weft inserter; The direction of the input alternating current of the electromagnetic weft insertion track; A plurality of brake coils are respectively connected to the first brake driver and the second brake driver; The electromagnetic weft insertion track power driver is connected with an AC power supply and the electromagnetic weft insertion track. 5. The control system of the AC type ultra-wide electromagnetic drive weft insertion device as claimed in claim 4, wherein the controller comprises an RJ45 network port, a DB9 serial port, a RAM, an SD card, a sensor input interface, and is selected as Signal input interface, driver signal output interface; The RJ45 network port is an Ethernet connection port, which is connected to the network port of the PC; RJ45 sends the received signal to the ZLAN module, and the ZLAN module converts the received signal into a UART signal and outputs it to the serial port of the microcontroller; The DB9 connector is connected to the serial port of the microcontroller through the TTL to 232 module; RAM and SD card are connected to the MCU as the external memory of the MCU; The sensor input interface is connected to the INT pin of the microcontroller as an external interrupt input; Both the weft selection signal input interface and the drive signal output interface are connected to the common GPIO pins of the microcontroller. 6. An AC-type ultra-wide electromagnetic drive weft insertion device for implementing the control method of the AC-type ultra-wide electromagnetic drive weft insertion device according to any one of claims 1 to 3, characterized in that the AC-type ultra-wide The electromagnetic drive weft insertion device includes: The electromagnetic weft insertion guide rail includes a reed seat, a steel reed, an electromagnetic coil, an iron core, a weft inserter and a weft inserter pulley; the electromagnetic coil is wound on the iron core. The permanent magnet on the weft inserter interacts to push the weft inserter to move forward; the electromagnetic coil and the reed are fixed on the reed seat; the weft inserter pulley is used to reduce the weft inserter and the electromagnetic weft inserting guide rail friction; The controller, when the loom performs the weft insertion movement, turns on the power supply to energize the coil on the iron core, and the weft inserter moves to the opposite side through the shed formed by the warp at a constant speed under the action of electromagnetic force. 7. The AC type ultra-wide electromagnetic drive weft insertion device according to claim 6, wherein the weft inserter is located on the track formed by the iron cores on both sides; the iron cores on both sides of the weft inserter An electromagnetic coil is wound on it, and the electromagnetic coil is connected with alternating current; The electromagnetic coil and the iron core interact with the two permanent magnets on the weft inserter according to a certain frequency, which changes the direction of the magnetic field to make the weft inserter move; The permanent magnet S pole of the head of the weft inserter is attracted by the N pole of the electromagnet installed at the rear of the sled, and at the same time is repelled by the S pole of the electromagnet installed on the frame slightly ahead of the sley; When the shuttle reaches the next position, the current flowing in the coil is reversed, and the original N-pole coil becomes the S-pole coil; the gripper can continue to insert the weft forward due to the conversion of the electromagnetic polarity; the speed of the weft inserter is driven by the electrical energy. The converter adjusts the frequency and voltage regulation of the alternating current flowing in the coils on both sides. 8. AC type ultra-wide electromagnetic drive weft insertion device as claimed in claim 6, is characterized in that, The brake device includes a brake coil, a brake iron core, a brake track, a brake spring, a weft insertion nozzle, a weft insertion position sensor, a weft insertion device pulley, a weft insertion device, a brake frame and a constant weft feeder; There are a total of 6 brake coils and brake iron cores. In the weft inserter braking device, the weft inserter is attracted to the braking point. The materials of the brake track and the brake iron core are silicon steel sheets. or pure iron; The brake track guides the weft inserter in the brake; The brake spring is installed on the brake frame, in the brake, the kinetic energy of the weft inserter is converted into elastic potential energy, and the elastic potential energy is released after the action of clamping the weft thread is completed, and the weft inserter is ejected into the electromagnetic weft insertion guide rail; The weft insertion nozzle is pierced with a weft thread, when the weft insertion device reaches the braking point, the weft insertion nozzle is inserted into the weft insertion port in the weft insertion device, the weft insertion nozzle is opened, and the weft thread is injected from the weft insertion nozzle into the weft insertion nozzle. weft inserter. The weft inserter position sensor is installed above the brake frame to detect whether the weft inserter reaches the braking point in the brake; the weft inserter pulley is installed between the brake track and the brake iron core, and is increased in the brake Friction between the weft inserter and the brake; The constant weft feeder is installed outside the brake frame to store weft threads. 9 . An information data processing terminal for realizing the control method of the AC type ultra-wide electromagnetic drive weft insertion device according to any one of claims 1 to 3 . 10. A computer-readable storage medium, comprising instructions that, when executed on a computer, cause the computer to execute the control method for an AC-type ultra-wide electromagnetically driven weft insertion device according to any one of claims 1-3.

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