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

Abstract

The present invention belongs to the technical field of textile equipment, and discloses an AC type ultra-wide electromagnetic driven weft insertion device, a control system and a control method. An AC type electromagnetic weft insertion guide rail device is used to replace the weft insertion mechanism of a rapier loom and the torsion shaft of energy conversion of a projectile shuttle loom. The weft insertion pulley installed on the electromagnetic weft insertion track reduces the friction between the weft insertion device and the shuttle guide, so that the loom can perform ultra-wide weft insertion at high speed; and an electromagnetic braking device is used to achieve rapid braking of the weft insertion device and support the weft thread, thereby reducing the impact of the weft insertion device. The electromagnetic weft insertion track of the present invention is equipped with a weft insertion pulley to reduce the friction between the weft insertion device and the shuttle guide, so that the loom can perform ultra-wide weft insertion at high speed, so that the width of the loom can be increased by 3m. The electromagnetic braking device is used to achieve rapid braking of the weft insertion device and support the weft thread, thereby reducing the impact of the weft insertion device and improving the energy conversion efficiency of the loom.

Description

Technical Field

[0001] The present invention belongs to the technical field of textile equipment, and in particular relates to an alternating current type ultra-wide electromagnetic driven weft insertion device, a control system and a control method. Background Art

[0002] At present, the existing super-wide looms include JAGER BK880 super-wide loom and P7300HP projectile loom. BK880 loom belongs to the bidirectional rapier loom among shuttleless looms. The rapier of this loom starts from the center and inserts the weft to both sides alternately. The process of advancing the rapier to one side is the retreat process of the other side.

[0003] The double-sided weft supply rapier loom has many parts, including both the weft receiving rapier and the weft sending rapier, which is relatively complicated. The two rapiers have dual tasks, the movement law is difficult to choose, the efficiency is not very high, and the weft insertion mechanism is complicated. The rapier belt is a flexible rapier belt and needs to be replaced regularly. The P7300HP loom is a shuttle loom among shuttleless looms. There is friction between the shuttle and the guide shuttle of this loom, which will reduce the shuttle movement speed. Secondly, the torsion shaft energy conversion efficiency of this loom is low.

[0004] In summary, the problems existing in the prior art are as follows: (1) In the prior art, the weft insertion mechanism of the rapier loom is complex and the energy conversion efficiency of the shuttle loom is low. There is friction between the weft inserter and the shuttle guide, which makes it impossible for the loom to perform ultra-wide weft insertion at high speed, resulting in a low width of the loom. In addition, the impact of the weft inserter in the prior art is large, and the energy conversion efficiency of the loom is low.

[0005] Difficulty in solving the above technical problems: The weft inserter needs a huge acceleration when it is first projected. How to give the weft inserter a huge acceleration through electromagnetic force in a short time is a difficult point.

[0006] The significance of solving the above technical problems: using electromagnetic force to throw the shuttle instead of the twisted shaft of the loom to improve the energy utilization rate of the loom. Using electromagnetic force to throw the shuttle is conducive to reducing the running noise of the loom.

[0007] Theoretically, electromagnetically driven weft insertion can break through the width limitation of the loom, making wider weft insertion possible. Summary of the invention

[0008] In view of the problems existing in the prior art, the present invention provides an AC ultra-wide electromagnetic driven weft insertion device, a control system and a control method. The present invention adopts an AC electromagnetic weft insertion guide device to keep the weft insertion device reciprocating at a constant speed. The electromagnetic brake device of the weft insertion device is used to quickly complete the braking of the weft insertion device and clamp the weft thread.

[0009] The present invention is implemented as follows: a control method for an AC ultra-wide electromagnetic driven weft insertion device, comprising:

[0010] The AC electromagnetic weft insertion guide device is used to replace the weft insertion mechanism of the rapier loom and the torsion shaft of the energy conversion of the shuttle loom. The weft insertion pulley installed on the electromagnetic weft insertion track reduces the friction between the weft insertion device and the shuttle guide, so that the loom can perform ultra-wide weft insertion at high speed.

[0011] And an electromagnetic braking device is used to achieve rapid braking of the weft inserter and support the weft thread, thereby reducing the impact of the weft inserter.

[0012] Furthermore, the control method of the AC ultra-wide electromagnetic driven weft insertion device specifically includes:

[0013] The controller can be operated graphically through the host computer, and the power-on command can be sent to the controller through the network port to transmit control data;

[0014] The controller controls the brake first driver and the brake second driver to energize the brake coil and perform braking according to the received signal of the weft insertion device position sensor;

[0015] The controller determines the direction of weft insertion by the electromagnetic weft insertion track power driver through the input signal of the weft insertion device position sensor.

[0016] Further, the method for the controller to control the brake driver 1 and the brake driver 2 includes:

[0017] When the high-speed weft insertion device passes through the electromagnetic weft insertion guide rail in the shed from the opposite side brake 1 and enters the brake on its side, the weft insertion device decelerates sharply under the action of the brake spring. When the weft insertion device position sensor detects that the weft insertion device has reached the braking point, the brake 2 driver controls the brake coil in the brake to be energized, and the weft insertion device 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 into the weft insertion device, and then the brake coil of the brake 2 driver is deenergized;

[0018] The weft insertion device is ejected into the electromagnetic weft insertion guide rail by the brake spring without the attraction of the brake coil and the brake iron core.

[0019] Another object of the present invention is to provide a control system for an AC type ultra-wide electromagnetic driven weft insertion device for implementing the control method of the AC type ultra-wide electromagnetic driven weft insertion device, the control system of the AC type ultra-wide electromagnetic driven weft insertion device comprises: a host computer, a controller, a brake first driver, a brake second driver, an electromagnetic weft insertion track power driver, a weft insertion nozzle driver, a weft insertion position sensor 1, a weft insertion position sensor 2, a brake coil, an electromagnetic weft insertion track and a weft insertion nozzle;

[0020] The brake driver 1, the brake driver 2, the electromagnetic weft insertion track power driver, and the weft insertion nozzle driver are considered as a power switch, and the large current used for driving is controlled by the small current sent by the controller.

[0021] Weft insertion position sensor 1 and weft insertion position sensor 2 are proximity switches. When an object passes under the proximity switch, the level signal of the signal line of the proximity switch will change. The motion controller will perform corresponding processing after detecting the change of the signal of the proximity switch.

[0022] The brake coil is made of enameled wire. When the electromagnetic coil is energized, a magnetic motive force is generated on the iron core.

[0023] The electromagnetic weft insertion track is composed of a row of iron cores and coils.

[0024] 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 inject the weft thread into the weft insertion device by controlling the solenoid valve.

[0025] The host computer performs graphical operations on the controller, and sends a power-on instruction to the controller through the network port to transmit control data;

[0026] The controller controls the brake driver 1 and the brake driver 2 to energize the brake coil according to the received signal of the weft insertion position sensor; the controller determines the direction of the electromagnetic weft insertion track power supply driver inputting AC power to the electromagnetic weft insertion track according to the input and output signals of the weft insertion position sensor;

[0027] The brake first driver and the brake second driver are respectively connected with a plurality of brake coils;

[0028] The electromagnetic weft insertion track power driver is connected with an AC power supply and the electromagnetic weft insertion track.

[0029] Furthermore, 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.

[0030] 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 a TTL to 232 module. RAM and SD card are connected to the microcontroller as external memory of the microcontroller. The sensor input interface is connected to the INT pin of the microcontroller as an external interrupt input. The weft selection signal input interface and the drive signal output interface are both connected to the ordinary GPIO pins of the microcontroller.

[0031] Another object of the present invention is to provide an AC type ultra-wide electromagnetic driven weft insertion device for implementing the control method of the AC type ultra-wide electromagnetic driven weft insertion device, the AC type ultra-wide electromagnetic driven weft insertion device comprising:

[0032] An electromagnetic weft insertion guide rail, the electromagnetic weft insertion guide rail comprises a sley, a steel reed, an electromagnetic coil, an iron core, a weft insertion device and a weft insertion device pulley; the electromagnetic coil is wound on the iron core, and when energized, the electromagnetic coil interacts with a permanent magnet on the weft insertion device to push the weft insertion device to continue moving forward; the electromagnetic coil and the steel reed are both fixed on the sley; the weft insertion device pulley is used to reduce the friction between the weft insertion device and the electromagnetic weft insertion guide rail;

[0033] Controller, when the loom is performing weft insertion movement, turn on the power to energize the coil on the iron core, and the weft inserter moves to the opposite side at a constant speed through the shed formed by the warp threads under the action of electromagnetic force.

[0034] Furthermore, the weft inserter is located on a track formed by the iron cores on both sides; electromagnetic coils are wound around the iron cores on both sides of the weft inserter, and alternating current is passed through the electromagnetic coils;

[0035] The electromagnetic coil and the iron core interact with the two permanent magnets on the weft inserter in a changing magnetic field direction at a certain frequency, so that the weft inserter moves;

[0036] The S pole of the permanent magnet at the head of the weft inserter is attracted by the N pole of the electromagnet installed a little behind the sley, and is repelled by the S pole of the electromagnet installed on the frame a little in front of the sley at the same time; when the shuttle reaches the next position, the current flowing in the coil flows in the opposite direction, and the original N pole coil becomes an S pole coil; the shuttle can continue to insert the weft forward due to the conversion of electromagnetic polarity; the speed of the weft inserter is adjusted by adjusting the frequency and voltage of the alternating current flowing in the coils on both sides through the power converter.

[0037] Further, the brake device includes a brake coil, a brake 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;

[0038] There are 6 brake coils and brake cores in total, which are used to attract the weft inserter to the braking point in the weft inserter braking device. The materials of the brake track and the brake core are silicon steel sheets or pure iron.

[0039] The brake track guides the weft inserter in the brake;

[0040] The brake spring is mounted on the brake frame, and converts the kinetic energy of the weft inserter into elastic potential energy in the brake. 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.

[0041] The weft insertion nozzle is threaded with weft thread. When the weft insertion device reaches the braking point, the weft insertion nozzle is inserted into the weft insertion port of the weft insertion device, the weft insertion nozzle is opened, and the weft thread is ejected from the weft insertion nozzle into the weft insertion device. The weft insertion device position sensor is installed above the brake frame to detect whether the weft insertion device reaches the braking point in the brake; the weft insertion device pulley is installed between the brake track and the brake core to increase the friction between the weft insertion device and the brake in the brake;

[0042] The constant weft storage device is installed outside the brake frame to store the weft yarn.

[0043] 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 driven weft insertion device.

[0044] Another object of the present invention is to provide a computer-readable storage medium, comprising instructions, which, when executed on a computer, enables the computer to execute the control method of the AC ultra-wide electromagnetic driven weft insertion device.

[0045] In summary, the advantages and positive effects of the present invention are as follows: the present invention adopts an AC 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 shuttle loom. The electromagnetic weft insertion track is equipped with a weft insertion pulley to reduce the friction between the weft insertion device and the shuttle guide, so that the loom can perform ultra-wide weft insertion at high speed, so that the width of the loom can be increased by 3m. The electromagnetic braking device is used to achieve rapid braking of the weft insertion device and its support of the weft thread, reduce the impact of the weft insertion device, and improve the energy conversion efficiency of the loom.

[0046] The following table is a comparison of the present invention and the prior art:

[0047] BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 It is a structural schematic diagram of an AC ultra-wide electromagnetic weft insertion guide rail device provided in an embodiment of the present invention.

[0049] Figure 2 The present invention provides an embodiment of the invention and is a weft insertion principle diagram of an AC ultra-wide electromagnetic weft insertion guide rail device.

[0050] In the figure: (a) side view; (b) top view.

[0051] Figure 3 The following are schematic side and top views of an electromagnetic brake device for an AC ultra-wide weft insertion device provided by an embodiment of the present invention. In the figure: (A) side view; (B) top view.

[0052] Figure 4The invention is a schematic structural diagram of a weft insertion device of an AC ultra-wide electromagnetic driven weft insertion device provided in an embodiment of the present invention.

[0053] Figure 5 It is a schematic diagram of a control system of an AC ultra-wide electromagnetic driven weft insertion device provided in an embodiment of the present invention.

[0054] Figure 6 The present invention provides a flowchart of a control method for an AC ultra-wide electromagnetically driven weft insertion device.

[0055] Figure 7 The present invention provides a flowchart of a control method for an AC ultra-wide electromagnetically driven weft insertion device.

[0056] Figure 8 It is a simulation structure diagram of the electromagnetic track provided by an embodiment of the present invention.

[0057] Fig. 9 It is a magnetic induction intensity diagram of a permanent magnet in the weft inserter housing provided by an embodiment of the present invention.

[0058] Fig.10 1 is a diagram of the electromagnetic force exerted on the permanent magnet on the left side of the weft inserter provided by an embodiment of the present invention.

[0059] Fig.11 1 is a diagram of the electromagnetic force exerted on the permanent magnet in the middle of the weft inserter provided in an embodiment of the present invention.

[0060] Fig.12 1 is a diagram of the electromagnetic force exerted on the permanent magnet on the right side of the weft inserter provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0061] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0062] In the prior art, the weft insertion mechanism of the rapier loom is complex and the energy conversion efficiency of the shuttle loom is low. The friction between the weft inserter and the shuttle guide makes it impossible for the loom to perform ultra-wide weft insertion at high speed, resulting in a low width of the loom. In addition, the impact of the weft inserter in the prior art is large, and the energy conversion efficiency of the loom is low.

[0063] In view of the problems existing in the prior art, the present invention provides an AC ultra-wide electromagnetic driven weft insertion device, a control system and a control method. The present invention is described in detail below with reference to the accompanying drawings.

[0064] like Figure 1As shown, an AC type ultra-wide electromagnetic driven weft insertion device includes an electromagnetic weft insertion guide rail. The electromagnetic weft insertion guide rail includes a sley, a reed (not shown), an electromagnetic coil, an iron core, a weft insertion device and a weft insertion device pulley. The current passed through the electromagnetic coil is alternating current. The electromagnetic coil is wound on the iron core. When energized, the electromagnetic coil interacts with the permanent magnet on the weft insertion device to push the weft insertion device to continue moving forward. The iron core material is silicon steel sheet or pure iron. Its role in the electromagnetic driven weft insertion device is to form a rigid magnetic flux circuit with the magnetic field generated by the electromagnetic coil. There are two permanent magnets on the weft insertion device. The iron core, electromagnetic coil and reed are all fixed on the sley. The sley is made of a material with low magnetic permeability and will not be magnetized. The function of the weft insertion device pulley is to reduce the friction between the weft insertion device and the electromagnetic weft insertion guide rail. When the loom is about to perform weft insertion, the controller turns on the power supply to energize the coil on the iron core, and the weft inserter moves to the opposite side at a constant speed through the shed formed by the warp threads under the action of electromagnetic force.

[0065] like Figure 2 As shown, the weft insertion device is located on the track formed by the iron cores on both sides. The iron cores on both sides of the weft insertion device are wound with electromagnetic coils, and the electromagnetic coils are passed through alternating current of a certain frequency and voltage, such as Figure 2 As shown in the top view, the electromagnetic coil and the iron core can be regarded as permanent magnets that change the direction of the magnetic field at a certain frequency. The interaction between the permanent magnets that constantly change the direction of the magnetic field and the two permanent magnets on the weft inserter can make the weft inserter move. The weft inserter moves forward because the S pole of the permanent magnet at the head of the weft inserter is attracted by the N pole of the electromagnet installed a little behind the sley, and at the same time is repelled by the S pole s of the electromagnet installed on the frame a little in front of the sley. When the shuttle reaches the next position, the current flowing in the coil flows in the opposite direction. As a result, the original N-pole coil now becomes an S-pole coil. And vice versa. In this way, the shuttle can continue to insert the weft forward due to the change of the electromagnetic polarity. The speed of the weft inserter is adjusted by adjusting the frequency and voltage of the alternating current flowing in the coils on both sides through the power converter.

[0066] like Figure 3As shown, the brake device includes a brake coil, a brake 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 6 brake coils and brake cores in total. The function of the brake coil and brake core in the weft insertion device is to attract the weft insertion device to the braking point. The materials of the brake track and the brake core are silicon steel sheets or pure iron. The function of the brake track in the brake is to guide the weft insertion device. The brake spring is installed on the brake frame. The function of the brake is to convert the kinetic energy of the weft insertion device into elastic potential energy, which plays a buffering role to prevent the weft insertion device from being severely impacted. After completing the action of clamping the weft thread, the elastic potential energy is released, and the weft insertion device is ejected into the electromagnetic weft insertion guide rail. The weft thread is passed through the weft insertion nozzle. 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. At this time, the weft insertion nozzle (not shown) is opened to eject the weft thread from the weft insertion nozzle into the weft insertion device. The weft insertion position sensor is installed above the brake frame (not shown), and its role in the brake is to detect whether the weft insertion has reached the braking point. The weft insertion pulley is installed between the brake track and the brake core, and its role in the brake is the friction between the weft insertion and the brake. The constant weft storage device is installed outside the brake frame. Its role in this device is to store the weft. The specific working process of the brake is as follows: when the high-speed moving weft insertion passes through the electromagnetic weft insertion guide rail in the shed from the opposite side brake and enters the brake on its side, the weft insertion is decelerated sharply under the action of the brake spring. When the weft insertion position sensor detects that the weft insertion has reached the braking point, the brake driver controls the brake coil in the brake to energize, and the weft insertion is attracted to the braking point. After that, the weft insertion nozzle driver controls the weft insertion nozzle to eject the weft from the weft insertion nozzle into the weft insertion, and at this time, the brake driver controls the brake coil to be deenergized. Without the attraction of the brake coil and the brake core, the weft insertion is quickly ejected into the electromagnetic weft insertion guide rail by the brake spring.

[0067] like Figure 4 As shown, the weft insertion device includes three permanent magnets, a weft pressing spring sheet, a weft inlet and a shuttle housing (not shown). The magnetization direction of the permanent magnet is shown in the figure. The weft insertion port is where the weft insertion nozzle is inserted. The weft pressing spring sheet 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 sprayed into the weft insertion device under the spray of the weft insertion nozzle.

[0068] like Figure 5As shown, the AC type ultra-wide electromagnetic driven weft insertion control system includes a host computer, a controller, a brake driver, a brake driver, an electromagnetic weft insertion track power driver, a weft insertion nozzle driver, a weft insertion position sensor 1, a weft insertion position sensor 2, a brake coil, an electromagnetic weft insertion track and a weft insertion nozzle. As the brain of the control system, the host computer can perform graphical operations on the controller. The host computer sends a power-on command to the controller through the network port, transmits control data, etc. The controller includes an RJ45 network port, a DB9 serial port, a RAM, an SD card, a sensor input interface, a selected signal input interface, and a driver signal output interface. The controller controls whether the brake driver and the brake driver 2 power the brake coil according to the received signal of the weft insertion position sensor. Three brake coils are connected to the brake driver and the brake driver 2, respectively. The electromagnetic weft insertion track power driver is connected to an AC power supply and an electromagnetic weft insertion track. The controller determines the direction in which the electromagnetic weft insertion track power driver inputs AC power to the electromagnetic weft insertion track through the input and output signals of the weft insertion position sensor.

[0069] like Figure 6 As shown, an embodiment of the present invention provides a control method for an AC ultra-wide electromagnetic driven weft insertion device, comprising:

[0070] S101, perform graphical operations on the controller through the host computer, and send a power-on command to the controller through the network port to transmit control data.

[0071] S102, the controller controls the brake first driver and the brake second driver to energize the brake coil and perform braking according to the received signal of the weft insertion device position sensor.

[0072] S103, the controller determines 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 weft insertion device position sensor.

[0073] In step S102, the method in which the controller controls the brake one driver and the brake two driver includes: when the high-speed moving weft inserter passes through the electromagnetic weft inserting guide rail in the shuttle eye from the brake on the opposite side and enters the brake on its own side, the weft inserter decelerates sharply under the action of the brake spring, and when the weft inserter position sensor detects that the weft inserter reaches the braking point, the brake driver controls the brake coil in the brake to be energized, and the weft inserter is attracted to the braking point; then the weft inserting nozzle driver controls the weft inserting nozzle to spray the weft thread from the weft inserting nozzle into the weft inserting device, and the brake driver controls the brake coil to be deenergized.

[0074] The weft insertion device is ejected into the electromagnetic weft insertion guide rail by the brake spring without the attraction of the brake coil and the brake iron core.

[0075] Figure 7The present invention provides a flowchart of a control method for an AC ultra-wide electromagnetically driven weft insertion device.

[0076] The present invention is further described below in conjunction with specific simulations.

[0077] Figure 8 This is a simulation structure diagram of the electromagnetic track, in which the upper frame is the iron core, the wide frame is the electromagnetic coil, the lower frame is the weft inserter housing, and the weft inserter housing contains a permanent magnet.

[0078] Fig. 9 The figure is a magnetic induction intensity diagram of a permanent magnet in the weft insertion device housing. The arrow on the permanent magnet indicates the magnetic induction intensity of the permanent magnet.

[0079] Fig.10 This is 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.

[0080] Fig.11 It is the electromagnetic force exerted on the permanent magnet in the middle of the weft inserter, of which the main force exerted is the force along the Z axis, which is about -6.1N.

[0081] Fig.12 The electromagnetic force on the permanent magnet on the right side of the weft insertion device, of which the main force along the Z axis is about -5.7N. The total electromagnetic force on the three permanent magnets is 18.7N. The mass of the weft insertion device is 20g. The friction coefficient is 0.17. Therefore, the friction force on the weft insertion device is 0.0034N, so the electromagnetic force on the weft insertion device is much greater than the friction force on the weft insertion device.

[0082] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When the use is 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, the process or function described in the embodiment of the present invention is generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions may be transmitted from one website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL) or wireless (e.g., infrared, wireless, microwave, etc.) mode) to another website site, computer, server or data center. The computer-readable storage medium may be any available medium that a computer can access or a data storage device such as a server or data center that includes one or more available media integrated. The available medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a solid-state hard disk SolidState Disk (SSD)), etc.

[0083] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A control method for an AC ultra-wide electromagnetic driven weft insertion device, characterized in that: The control method of the AC ultra-wide electromagnetic driven weft insertion device comprises: The AC electromagnetic weft insertion guide device is used to replace the weft insertion mechanism of the rapier loom and the torsion shaft of the energy conversion of the shuttle loom. The weft insertion pulley installed on the electromagnetic weft insertion track reduces the friction between the weft insertion device and the shuttle guide, so that the loom can perform ultra-wide weft insertion at high speed. And the electromagnetic brake device is used to realize the rapid braking of the weft inserter and the holding of the weft thread, thereby reducing the impact of the weft inserter; The control method of the AC ultra-wide electromagnetic driven weft insertion device specifically includes: The controller can be operated graphically through the host computer, and the power-on command can be sent to the controller through the network port to transmit control data; The controller controls the brake first driver and the brake second driver to energize the brake coil and brake the weft inserter according to the received signal from the weft inserter position sensor; The controller determines the direction in which the electromagnetic weft insertion track power driver inputs AC power to the electromagnetic weft insertion track through the input and output signals of the weft insertion device position sensor; The method for the controller to control the brake first driver and the brake second driver includes: When the high-speed weft insertion device passes through the electromagnetic weft insertion guide rail in the shed from the brake on the opposite side and enters the brake on its side, the weft insertion device decelerates sharply under the action of the brake spring. When the weft insertion device position sensor detects that the weft insertion device has reached the braking point, the brake driver controls the brake coil in the brake to energize, and the weft insertion device 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 into the weft insertion device, and the brake driver controls the brake coil to de-energize; The weft insertion device is ejected into the electromagnetic weft insertion guide rail by the brake spring without the attraction of the brake coil and the brake iron core.

2. A control system for an AC type ultra-wide electromagnetic driven weft insertion device implementing the control method of the AC type ultra-wide electromagnetic driven weft insertion device according to claim 1, characterized in that: The control system of the AC ultra-wide electromagnetic driven weft insertion device includes: a host computer, a controller, a brake first driver, a brake second driver, an electromagnetic weft insertion track power driver, a weft insertion nozzle driver, a weft insertion position sensor 1, a weft insertion position sensor 2, a brake coil, an electromagnetic weft insertion track and a weft insertion nozzle; The host computer performs graphical operations on the controller, and sends a power-on instruction to the controller through the network port to transmit control data; The controller controls the brake driver 1 and the brake driver 2 to energize the brake coil according to the received signal of the weft insertion position sensor; the controller determines the direction of the electromagnetic weft insertion track power supply driver inputting AC power to the electromagnetic weft insertion track according to the input and output signals of the weft insertion position sensor; The brake first driver and the brake second driver are respectively connected with a plurality of brake coils; The electromagnetic weft insertion track power driver is connected with an AC power supply and the electromagnetic weft insertion track.

3. The control system of the AC ultra-wide electromagnetic driven weft insertion device according to claim 2, characterized in that: The controller includes an RJ45 network port, a DB9 serial port, a RAM, an SD card, a sensor input interface, a selected 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; 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; RAM and SD card are connected to the microcontroller as external memory of the microcontroller; The sensor input interface is connected to the INT pin of the microcontroller as an external interrupt input; The weft selection signal input interface and the drive signal output interface are both connected to the common GPIO pins of the microcontroller.

4. An AC type ultra-wide electromagnetic driven weft insertion device implementing the control method of the AC type ultra-wide electromagnetic driven weft insertion device according to claim 1, characterized in that: The AC type ultra-wide electromagnetic driven weft insertion device comprises: An electromagnetic weft insertion guide rail, the electromagnetic weft insertion guide rail comprises a sley, a steel reed, an electromagnetic coil, an iron core, a weft insertion device and a weft insertion device pulley; the electromagnetic coil is wound on the iron core, and when energized, the electromagnetic coil interacts with a permanent magnet on the weft insertion device to push the weft insertion device to continue moving forward; the electromagnetic coil and the steel reed are both fixed on the sley; the weft insertion device pulley is used to reduce the friction between the weft insertion device and the electromagnetic weft insertion guide rail; Controller, when the loom is performing weft insertion movement, turn on the power to energize the coil on the iron core, and the weft inserter moves to the opposite side at a constant speed through the shed formed by the warp threads under the action of electromagnetic force.

5. The AC ultra-wide electromagnetic driven weft insertion device according to claim 4, characterized in that: The weft inserter is located on a track formed by the iron cores on both sides; electromagnetic coils are wound around the iron cores on both sides of the weft inserter, and alternating current is passed through the electromagnetic coils; The electromagnetic coil and the iron core interact with the two permanent magnets on the weft inserter in a changing magnetic field direction at a certain frequency, so that the weft inserter moves; The S pole of the permanent magnet at the head of the weft inserter is attracted by the N pole of the electromagnet installed a little behind the sley, and is repelled by the S pole of the electromagnet installed on the frame a little in front of the sley at the same time; when the shuttle reaches the next position, the current flowing in the coil flows in the opposite direction, and the original N pole coil becomes an S pole coil; the shuttle can continue to insert the weft forward due to the conversion of electromagnetic polarity; the speed of the weft inserter is adjusted by adjusting the frequency and voltage of the alternating current flowing in the coils on both sides through the power converter.

6. The AC ultra-wide electromagnetic driven weft insertion device according to claim 4, characterized in that: The brake device comprises a brake coil, a brake 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 6 brake coils and brake cores in total, which are used to attract the weft inserter to the braking point in the weft inserter braking device. The materials of the brake track and the brake core are silicon steel sheets or pure iron. The brake track guides the weft inserter in the brake; The brake spring is mounted on the brake frame, and converts the kinetic energy of the weft inserter into elastic potential energy in the brake. 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 provided with a weft thread. When the weft insertion device reaches the braking point, the weft insertion nozzle is inserted into the weft insertion port of the weft insertion device, the weft insertion nozzle is opened, and the weft thread is ejected from the weft insertion nozzle into the weft insertion device. The weft insertion device position sensor is installed above the brake frame, and detects in the brake whether the weft insertion device reaches the braking point. The weft insertion device pulley is installed between the brake track and the brake core, and increases the friction between the weft insertion device and the brake in the brake. The constant weft storage device is installed outside the brake frame to store the weft yarn.

7. An information data processing terminal for implementing the control method of the AC type ultra-wide electromagnetic driven weft insertion device according to claim 1.

8. A computer-readable storage medium comprising instructions, which, when executed on a computer, enables the computer to execute the control method of the AC ultra-wide electromagnetic driven weft insertion device according to claim 1.

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