CN108037778B - Magnetoelectric wire nozzle assembly and its motion control method - Google Patents

Abstract

The invention discloses a magnetoelectric wire nozzle assembly and a motion control method thereof. The device is characterized in that a magnetic pole matrix is embedded at the bottom in a main slideway of a machine shell, a sliding stop block is arranged on the magnetic pole matrix, a lead nozzle sliding block is arranged between a left baffle and the sliding stop block, a permanent magnet is embedded in the middle of the lead nozzle sliding block, a switch matrix circuit board is arranged on a rear baffle, a combined electrode is arranged on the lead nozzle sliding block close to the rear baffle, the combined electrode is connected with different magnetic pole windings on the switch matrix along with the movement of the lead nozzle, and the magnetic pole matrix drives the lead nozzle to reciprocate under the driving of a control system. The invention adopts a unique switch matrix to carry out sectional control in the aspect of driving the magnetic poles, utilizes energy to the maximum extent, adopts a driving structure that the wire mouth returns quickly at the returning point of the wire mouth movement, and effectively shortens the returning time; the device is easy to be connected with a digital controller, and the coordination work of the general bearing of the winding motor is met; simple structure, furthest has reduced the resistance.

Description

Magnetoelectric wire nozzle assembly and its motion control method

technical field

The invention relates to a wire nozzle assembly and a control method thereof, in particular to a magnetoelectric wire nozzle assembly and a motion control method thereof, belonging to the field of textile machinery.

Background technique

The wire nozzle bearing is usually used in textile machinery, and the most widely used is the winding machine; the winding machine consists of three parts: the winding motor bearing that drives the spool to rotate; the wire nozzle bearing that controls the shape of the winding, controls the winding Tension sensor for thread strength. At present, most of our country uses mechanical wire nozzle device; a small number of more advanced equipment has begun to use digital wire nozzle device; the indicators to measure digital wire nozzle device are: economy, noise, power consumption, speed, life, lead Adjustability, return point time (the smaller the better), digitization level (automation level) and other indicators.

At present, there are two types of wire nozzles used in the world: mechanical type and servo type; the mechanical type wire nozzle has high energy consumption, high noise, complex lead adjustment, no digital function (poor automation level), and is on the verge of elimination, but due to low cost, It is still widely used in China; the servo-type wire nozzle assembly is easy to adjust and has a high level of digitization (high level of automation), but the high-speed operation noise and the return point time are not ideal; developed countries have begun to use it in large quantities; but due to high costs, Less domestic use.

SUMMARY OF THE INVENTION

In view of the above problems existing in the wire nozzle device in the prior art, the present invention provides a magnetoelectric wire nozzle assembly and a motion control method thereof.

The technical scheme of the present invention is as follows:

The invention provides a magnetoelectric type wire nozzle assembly, comprising a main slide of a casing, a left baffle and a right baffle fixed at both ends of the main slide of the casing, and a rear baffle fixed to the rear of the main slide of the casing A magnetic pole matrix is installed at the bottom of the main slideway of the casing. The magnetic pole matrix is provided with a sliding block that can slide freely and can be fixed at any position of the sliding. The free sliding wire nozzle slider, the permanent magnet is embedded in the middle of the wire nozzle slider, the wire disc is arranged on the outer side, the Hall switch and the booster magnetic pole are installed on the left baffle and the sliding block, and the rear baffle is installed There is a switch matrix circuit board, and a combination electrode is installed on the wire nozzle slider near the rear baffle side. The combination electrode connects different magnetic pole windings in the switch matrix with the movement of the wire nozzle, and the magnetic pole matrix is driven by the control system. The lower drive wire nozzle reciprocates.

As a further improvement of the present invention, the magnetic pole matrix is formed by arranging relatively independent electromagnets one by one. After the electromagnet is energized, it attracts or repels the permanent magnet block above it.

As a further improvement of the present invention, the switch matrix includes an upper common electrode, a lower common electrode, a magnetic pole coil spanning the lower common electrode, and magnetic pole contacts and power supply zero points respectively disposed at the upper and lower ends of the magnetic pole coil.

As a further improvement of the present invention, shock-absorbing rubber pads are installed on the left baffle and the sliding block.

As a further improvement of the present invention, the control system includes a controller, a driving power switch, a display module, a keyboard module, a magnetic pole matrix power supply commutation driving module, a Hall signal receiving circuit, and an information output communication module. The magnetic pole matrix The power reversing driving module includes a voltage regulating driving module and a boosting driving module, the display module is used for receiving the output signal of the controller and displaying it, the keyboard module is used for two-way communication with the controller, and the boosting driving module is used for two-way communication with the controller. After the module receives the output signal of the controller, it controls the movement of the boosting magnetic pole. The magnetic pole matrix drives the wire nozzle to reciprocate under the driving of the controller. The voltage regulation driving module switches the power direction after receiving the output signal of the controller. The receiving circuit is used to transmit the sensing information of the Hall switch to the controller, and the information output communication module outputs the information of the controller to the external device.

As a further improvement of the present invention, two threaded holes for fixing with other devices are provided on one side of the left baffle and the right baffle.

The present invention also provides a motion control method for the magnetoelectric wire nozzle assembly, comprising the following steps:

Step 1: Power on for the first time, first set the parameters: including the reciprocating speed of the wire nozzle, the distance of the lead, and the total number of turns of the winding; the controller controls according to these parameters; before power-on, the wire nozzle starts Start end; after startup, the controller controls the movement speed of the wire nozzle according to the set parameters, and sends the speed information synchronously and serially and displays it on the display screen;

The second step: start running, the controller turns on the switch matrix power supply, the combined electrode moves with the wire nozzle, and connects the three magnetic pole windings at any position to form a thrust that pushes the wire nozzle to move;

Step 3: When the wire nozzle moves from one end to the other end under the drive of the magnetic pole matrix, the permanent magnet inside the wire nozzle triggers the Hall element, and the single-chip microcomputer receives the trigger signal to start the boosting magnetic pole, and the direction of the power supply of the magnetic pole matrix is changed. Push the wire nozzle to the opposite direction to move, and push the wire nozzle to do reciprocating motion.

Further, the method of the present invention also includes a parameter adjustment step, including:

1) The controller calculates the reciprocating speed by detecting the time when the wire nozzle reaches one end, and adjusts the speed according to the set speed;

2) Adjustment of the reciprocating lead: loosen the top wire, adjust the position of the propeller according to the scale on the casing, tighten the top wire, and set the corresponding parameters on the keyboard at the same time, the controller adjusts the magnetic pole matrix according to this parameter. Supply voltage, change the strength of the driving force, and control the speed;

3) The controller controls the stop according to the set total number of turns, when the count value reaches the specified number of turns.

The beneficial effects of the present invention are as follows:

(1) The structure is simple, there is no transmission structure such as screw, screw nut, gear, rack, etc., the movement structure is single, and the manufacturing cost is low.

(2) The noise is small, and the traditional screw nut and rack and pinion are removed, which not only saves costs, but also reduces rigid impact and motion resistance;

(3) The speed is higher. Due to the above (2), the device has a higher speed than the screw or gear structure;

(4) The lead is adjustable, and the reciprocating lead of the wire nozzle can be easily and continuously adjusted by sliding the stopper on the right side;

(5) The power consumption is low, the resistance of the wire nozzle slider in the slideway is very small, only three magnetic poles are energized at each moment, and the energy utilization rate is high;

(6) The return time is short, and the return point plus the participation of the booster magnetic pole shortens the return time;

(7) The degree of digitization is high. The controller can easily detect the time when the wire nozzle reaches both sides through the Hall elements on both sides. It is easy to calculate the reciprocating speed through the time interval of two points, and stabilize the reciprocating speed through closed-loop control. High-precision control; and send the position and speed information through the 485 interface.

Description of drawings

FIG. 1 is a schematic view of the structure of the magnetoelectric wire nozzle assembly of the present invention.

Figure 2 is a schematic diagram of the magnetic pole drive.

Figure 3 is the second schematic diagram of the magnetic pole drive.

Figure 4 is the third schematic diagram of the magnetic pole drive.

Figure 5 is a schematic diagram 1 of the block being adjusted to any position to achieve reliable reverse.

Figure 6 is the second schematic diagram of the block being adjusted to any position to achieve reliable reverse.

Figure 7 is a schematic diagram of a switch matrix.

Figure 8 is the second schematic diagram of the switch matrix.

Figure 9 is a schematic diagram of the switch matrix three.

Figure 10 is a schematic diagram of the switch matrix four.

Fig. 11 is a diagram showing the positional relationship between the wire nozzle and the electromagnet.

FIG. 12 is a structural diagram of a magnetic pole matrix arranged by electromagnets.

Figure 13 is a schematic diagram of a driving magnetic pole electrical appliance.

Figure 14 is the second schematic diagram of the electric device for driving the magnetic pole.

Fig. 15 is a block diagram of the control system.

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings.

1. The composition of the device

The structure of the device of the present invention is shown in FIG. 1 , a magnetic pole matrix 8 is installed inside the main slideway 13 of the casing, fixed baffles (including the left baffle 3 and the right baffle 17 ) are installed on both sides, and the middle A sliding block 10 that can slide freely is installed on the side close to the right baffle 17, which can be slid to any position within the main slideway and fixed by the locking screw 16; the wire nozzle slider 6 is installed on the left measuring baffle 3 Between the sliding stopper 10 and the sliding stopper 10, it can slide freely; the wire nozzle slide 6 is inlaid with a permanent magnet 7, and there is a wire nozzle disc 14 on the outer side; the left baffle 3 is provided with a left shock-absorbing rubber pad 12, and the free sliding stopper is provided with a left damping rubber pad 12. The block 10 is equipped with a right shock-absorbing rubber pad 15, a left Hall switch 1, a left booster magnetic pole 2, a right Hall switch 9, and a right booster magnetic pole 11; there are two threaded holes on one side of the baffles on both sides, It is used for fixing with other devices; a rear baffle 4 is arranged behind the main slideway 13 of the casing, and a switch matrix 5 circuit board is arranged on the rear baffle 4; a combined electrode 18 is installed on the inner side of the wire nozzle slider 6 Can be connected with different magnetic pole windings in the switch matrix with the movement of the wire nozzle; the switch matrix includes the upper common electrode V _U 22, the lower common electrode V _D 23, the magnetic pole coil 19 across the lower common electrode, and the magnetic poles are respectively arranged on the magnetic pole The magnetic pole contacts 24 at the upper and lower ends of the coil 19 and the power supply zero point 25, the combined brush 21 is provided with a brush 20; the device of the present invention also has a controller, as shown in Figure 15, the controller includes: a display module, a keyboard module, Magnetic pole matrix power supply commutation drive module, Hall signal receiving circuit, 485 communication module outputting information (this information is very important and is the basis for winding motor speed control); the magnetic pole matrix drives the wire nozzle to reciprocate under the drive of the controller sports.

2. The working process of the wire nozzle

(1) When the power is turned on for the first time, the parameters must be set first: mainly the reciprocating speed of the wire nozzle, the distance of the lead, and the total number of turns of the winding; the controller controls according to these parameters; before the power is turned on, the wire nozzle is in The starting end (the operator should hang up the wire at this position); after starting, the controller controls the movement speed of the wire nozzle according to the set parameters, and sends the speed information synchronously and serially and displays it on the LCD screen;

(2) Start running, the controller turns on the switch matrix power supply, the combined electrode moves with the wire nozzle, and connects three magnetic poles at any position to form a thrust that pushes the wire nozzle to move;

(3) When the wire nozzle moves from one end to the other end under the drive of the magnetic pole matrix, the permanent magnet inside the wire nozzle triggers the Hall element, the single-chip microcomputer receives the trigger signal to start the boosting magnetic pole, changes the power direction of the magnetic pole matrix, and cooperates with the wire nozzle Push to the opposite direction to move, and push the wire nozzle to do reciprocating motion;

(4) The controller calculates the reciprocating speed by detecting the time when the wire nozzle reaches one end, and adjusts the speed according to the set speed;

(5) Adjustment of the reciprocating lead: loosen the top wire, adjust the position of the propeller according to the scale on the casing, tighten the top wire, and set the corresponding parameters on the keyboard at the same time, the controller adjusts the magnetic pole matrix according to this number of times the power supply voltage, change the strength of the driving force, and control the speed;

(6) The controller controls the stop according to the set number of turns, when the count value reaches the specified number of turns.

3. Principle of motion control of wire nozzle

The operating principle of the wire nozzle; the device generates thrust through the magnetic pole matrix to drive the movement of the wire nozzle; the magnetic pole matrix structure is shown in Figures 11 and 12; the magnetic pole matrix is actually formed by arranging relatively independent electromagnets one by one. As shown in Figure 13 and Figure 14; after the electromagnet is energized, it is either attracted to the permanent magnet block above or repelled with the permanent magnet block, and the positional relationship between the magnetic pole direction of the permanent magnet block embedded in the wire nozzle and the magnetic pole matrix is as follows: As shown in Figure 11; the driving process is described as follows:

See Figures 2-4, Figures 7-10

①In the state of no power supply, the position of the combined brush is shown on the left side of Figure 7, and the combined brush stays at the position of the coil 0-1-2, standing still;

②After the device is started, the controller turns on the drive power, at this time VU is the positive power supply, VD is the negative power supply, they are equal in size and opposite in direction; at this moment, the combination brushes connect the 0 coil to the positive power supply, and 1-2 to the negative power supply ; The magnetic induction of the magnetic pole emphasizes the direction referring to accompanying drawing 2, due to the repulsion of the magnetic pole 0 and the suction of the magnetic pole 2, the wire nozzle will move to the position of 1-2-3 (dotted line);

③ On the 1-2-3 position, the position of the combined brush is shown in Figure 8, and the direction of the magnetic pole is shown in Figure 3. Due to the repulsion of the magnetic pole 1 and the suction of the magnetic pole 3, the wire nozzle will move to 2-3-4 ( dotted line) position;

④Similarly, the position of the combined brush is shown in Figure 9, and the direction of the magnetic pole is shown in Figure 4. Also due to the effect of the magnetic pole, the wire nozzle will move to the position of 3-4-5 (dotted line); and so on, as shown in Figure 10 , the wire nozzle moves to the right moving stop position;

⑤ When the wire nozzle moves to the magnetic piece above the sliding block end, the Hall device is triggered, and the controller switches the direction of the power supply, that is, VU is the negative power supply, VD is the positive power supply, and the wire nozzle will move in the opposite direction; ;

⑥ No matter whether the wire nozzle moves to the left end or the right end, the controller can receive the position signal from the left end and the sliding block end, the controller switches the direction of the power supply, starts the booster magnetic pole, and the direction is opposite to the direction of the magnetic block, which produces a repulsive force, making the The wire nozzle moves in the opposite direction quickly, shortening the residence time of the wire nozzle at the end point;

⑦ The controller can change the running speed of the wire nozzle by controlling the size of VU and VD, and set the speed range of the wire nozzle stably;

⑧The reciprocating distance of the wire nozzle becomes the lead, which can be adjusted by sliding the stopper; it can be seen from Figures 5 and 6 that no matter where the stopper is adjusted, the wire nozzle can reliably move in the opposite direction after the power supply is switched.

To sum up, the wire nozzle assembly of the present invention adopts the working mode of using the magnetic pole change of the magnetic pole matrix to promote the reciprocating motion of the wire nozzle, and adopts a unique switch matrix for segmental control in terms of the driving of the magnetic pole, so as to maximize the use of energy. The return point of the movement of the wire nozzle adopts the driving structure of the rapid return of the wire nozzle, which effectively shortens the return time. The time when the wire nozzle arrives is detected by the Hall switch at the end point, and the magnetic pole is commutated to change the direction of movement; this structure is very easy Connected with the digital controller, the controller can obtain enough information to provide externally to meet the coordination work of the winding motor bearing; the structure is also optimized, the device structure is simple, the screw and the nut are eliminated, and the collision noise is avoided ;The slider of the wire nozzle only slides in the empty dovetail channel to minimize the resistance; there is a slider on the right side of the general bearing that can be slid to the free sliding end to adjust the reciprocating distance, and is locked with fastening bolts; various optimizations The design takes into account the various indicators of the wire nozzle device. Focus on solving noise, speed, lead continuously adjustable, digital and so on.

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 principle of the present invention shall be included within the protection scope of the present invention.

Claims (8)

1. Magnetoelectric wire is chewed and is always held, including casing main slide, be fixed in left side baffle and the right side baffle at casing main slide both ends, be fixed in the backplate at casing main slide rear, its characterized in that: the bottom in the main slideway of the machine shell is embedded with a magnetic pole matrix, the magnetic pole matrix is provided with a sliding stop block which can slide freely and can be fixed at any sliding position, a wire nozzle slide block which can slide freely is arranged between a left baffle plate and the sliding stop block, a permanent magnet is embedded in the middle of the wire nozzle slide block, a wire disc is arranged on one outer side, a Hall switch and a boosting magnetic pole are arranged on the left baffle plate and the sliding stop block, a switch matrix circuit board is arranged on a rear baffle plate, a combined electrode is arranged on the wire nozzle slide block close to the rear baffle plate side, the combined electrode is connected with different magnetic pole windings on the switch matrix along with the movement of a wire nozzle, and the magnetic pole matrix drives the wire nozzle to reciprocate.

2. The magnetoelectric lead holder assembly according to claim 1, wherein: the magnetic pole matrix is formed by arranging relatively independent electromagnets, and the electromagnets are attracted or repelled with permanent magnets above the electromagnets after being electrified.

3. The magnetoelectric lead holder assembly according to claim 1, wherein: the switch matrix comprises an upper public electrode, a lower public electrode, a magnetic pole coil crossing the lower public electrode, and magnetic pole contacts and a power supply zero point which are respectively arranged at the upper end and the lower end of the magnetic pole coil.

4. The magnetoelectric lead holder assembly according to claim 1, wherein: and shock-absorbing rubber pads are arranged on the left baffle and the sliding stop block.

5. The magnetoelectric lead holder assembly according to claim 1, wherein: the control system comprises a controller, a driving power main switch, a display module, a keyboard module, a magnetic pole matrix power reversing driving module, a Hall signal receiving circuit and an information output communication module, the magnetic pole matrix power supply reversing driving module comprises a voltage regulating driving module and a boosting driving module, the display module is used for receiving and displaying an output signal of the controller, the keyboard module is used for bidirectional communication with the controller, the boosting drive module receives an output signal of the controller and controls the boosting magnetic pole to move, the magnetic pole matrix drives the wire nozzle to reciprocate under the drive of the controller, the voltage regulation driving module switches the power direction after receiving the output signal of the controller, the receiving circuit of the Hall signal is used for transmitting the sensing information of the Hall switch to the controller, and the information output communication module outputs the information of the controller to external equipment.

6. The magnetoelectric lead holder assembly according to claim 1, wherein: and two threaded holes used for being fixed with other devices are formed in one side baffle of the left side baffle and the right side baffle.

7. The method of controlling the movement of a magnetoelectric wire nozzle assembly according to any one of claims 1 to 6, comprising the steps of:

the first step is as follows: firstly, electrifying for the first time, firstly setting parameters: the device comprises the reciprocating motion speed of a wire nozzle, the distance of a lead and the total number of turns of a winding; the controller controls according to the parameters; before electrifying, the conducting wire mouth is at the starting end; after starting, the controller controls the movement speed of the wire nozzle according to the set parameters, and synchronously and serially sends and displays the speed information on the display screen;

the second step is that: when the switch matrix power supply starts to operate, the controller is connected with the switch matrix power supply, the combined electrode moves along with the wire nozzle, and the three magnetic pole windings are connected at any position to form thrust for pushing the wire nozzle to move;

the third step: when the wire nozzle is driven by the magnetic pole matrix to move from one end to the other end, the permanent magnet in the wire nozzle triggers the Hall element, the single chip microcomputer receives a trigger signal to start the boosting magnetic pole, the power direction of the magnetic pole matrix is exchanged, the wire nozzle is pushed to move in the opposite direction in a coordinated mode, and the wire nozzle is pushed to reciprocate in cycles.

8. The method of claim 7 wherein the method further comprises the step of: further comprising a parameter adjusting step, comprising:

1) the controller calculates the reciprocating speed by detecting the time of the wire nozzle reaching one end, and performs speed regulation according to the set speed;

2) the reciprocating lead is adjusted, namely loosening the jackscrew, adjusting the position of the propeller according to the scale on the shell, fastening the jackscrew, setting corresponding parameters on the keyboard, and adjusting the power supply voltage of the magnetic pole matrix by the controller according to the parameters, changing the strength of the driving force and controlling the speed;

3) and the controller controls the parking when the count value reaches the specified number of turns according to the set total number of turns.

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