CN201053052Y - Multi-motor control and transmission device for twisting machine - Google Patents

Abstract

The utility model discloses a novel multi-motor control and transmission device for twister, which comprises a spindle, a winding friction drum, a left thread guide bar and a right thread guide bar. The utility model is characterized in that: the device comprises a twisting motor which drives the spindle through belt pulley transmission, a winding motor which drives the winding friction drum through the fitting of a belt and the belt pulley, two thread guide motors which respectively drive two ball screw rods arranged on an output end through a transmission device of the belt and the belt pulley, wherein the ball screw rods is connected with the right and left thread guide bars respectively, and also comprises a control device which is connected with the twisting motor, the winding motor and the thread guide motors. The utility model has the advantages of: (1) adopting a plurality of motors which respectively independently complete tasks, and accordingly bringing about simple and compact structure of the whole device; (2) adopting an engineering controlling machine for control, and accordingly bringing about accurate and convenient control; (3) shortening transmission line, and accordingly reducing power consumption and failure rate.

Description

Multi-motor control and transmission device of new type twisting machine

technical field

The utility model relates to a multi-motor control and transmission device, in particular to a multi-motor control and transmission device for a twisting machine.

Background technique

The transmission system of the twisting machine includes the high-speed rotary motion of the spindle, the winding motion of the winding friction drum and the forming motion of the reciprocating yarn guide. In terms of the transmission technology of the twisting machine (or two-for-one twisting machine), at present, single-motor transmission systems are mostly used at home and abroad. S twist and Z twist can be obtained by changing the direction of the motor, and different twists can be obtained by changing gears, which are realized through gear and cam transmission. Winding movement and yarn guiding movement, so as to realize the spindle rotation, bobbin winding and reciprocating yarn guiding of the whole machine. This purely mechanical twisting machine must be equipped with a large number of twist changing gears and pulleys to meet the requirements of processing yarns with different twists. The reciprocating yarn guide is realized by a cam mechanism and a connecting rod mechanism. There are many accessories, and the operation is time-consuming, laborious and inconvenient to control when changing the types of processed yarns.

Contents of the invention

The technical problem to be solved by the utility model is to provide a new type of multi-motor control and transmission device for twisting machines in view of the shortcomings of the above-mentioned prior art. Its structure is simple and reasonable, the transmission route is shortened, and it can be controlled more conveniently and accurately. Power consumption is reduced.

The technical scheme adopted by the utility model to solve the above-mentioned technical problems is as follows: it includes a spindle that installs yarn balls and drives the yarn to rotate at high speed; a winding friction cylinder that provides yarn winding motion; reciprocating yarn guide forming The left and right yarn guide rods; it is characterized in that it includes a twisting motor, the twisting motor is connected with a pulley, and the pulley cooperates with the belt, and the belt drives the spindle through the bottom of the inner mandrel of the friction spindle; A winding motor is installed, and the winding motor drives the winding friction cylinder through the cooperation of the belt and the pulley; it also includes two yarn-guiding motors, and the two yarn-guiding motors drive the two through the transmission device of the pulley and the belt respectively. A ball screw installed at the output end, the ball screw is respectively connected to the left and right yarn guide rods; a control device is also installed, and the control device is connected to the twisting motor, the winding motor and the yarn guide motor.

Further, the constant tension webbing take-up device of the cylindrical packing tape automatic weaving machine of the present invention also includes the following technical features:

The twisting motor and winding motor are AC asynchronous motors, and the two yarn guiding motors are AC servo motors.

Described control device comprises industrial computer, and described industrial computer is connected with frequency converter I and frequency converter II, and frequency converter I is connected with twisting motor, and frequency converter II is connected with winding motor; Described industrial computer is connected with PCI card, and described The PCI card is connected with a driver I and a driver II, and the driver I and the driver II are respectively connected with the yarn guide motor.

It may also include a serial communication converter, the input end of the serial communication converter is connected to the industrial computer, and the output end of the serial communication converter is connected to the frequency converter.

Four stop proximity switches can also be installed, and the stop proximity switches are respectively installed at the limit positions of the movement of the left and right yarn guide rods, and the stop proximity switches are connected to the controller.

Four deceleration proximity switches can also be installed, and the deceleration proximity switches are respectively installed between the starting position and the limit position of the movement of the left and right yarn guide rods and close to the limit positions, and the deceleration proximity switches are connected to the controller.

The beneficial effects of the utility model are: (1) each task is independently completed by a plurality of motors, and the complicated intermediate mechanism is omitted, so that the structure of the whole device is simple and compact; (2) the industrial computer control is adopted, and the control is precise and convenient; (3) ) The transmission line is shortened, the power consumption is reduced, and the failure rate is low.

Description of drawings

Fig. 1 is a schematic diagram of a transmission system of an embodiment of the present invention.

Fig. 2 is a flow chart of the control system of an embodiment of the present invention.

Fig. 3 is a schematic diagram of communication wiring between an industrial computer and a frequency converter according to an embodiment of the present invention.

Fig. 4 is a structural diagram of the reciprocating yarn guiding system in an embodiment of the present invention.

Detailed ways

Further illustrate the embodiment of the present utility model below in conjunction with accompanying drawing.

Fig. 1 is a schematic diagram of a transmission system of an embodiment of the present invention.

In Fig. 1, include the spindle 4 that installs the yarn ball, the spindle 4 drives the yarn to rotate at a high speed for twisting. The power of the rotary motion of the spindle 4 is provided by the twisting motor 1, the twisting motor 1 is connected with a pulley 2, the pulley 2 cooperates with the belt 3, and the belt 3 drives the Spindle 4 makes rotary motion. It also includes a winding friction cylinder 8 that provides yarn winding motion, the winding friction cylinder 8 is driven by a winding motor 5, and the winding motor 5 drives the winding friction cylinder 8 through the cooperation of the belt 7 and the pulley 6 , Winding friction cylinder 8 friction bobbin 9 winding yarn. The left yarn guide rods 131 and 132 formed by reciprocating yarn guide are respectively driven by two yarn guide motors 10 and 20. The yarn guide motor 10 and the yarn guide motor 20 drive two balls installed at the output end through the transmission device of the pulley and the belt. The screw rod 141 and the ball screw rod 142 are connected to the left yarn guide rod 131 and the right yarn guide rod 132 respectively. A control device is also installed, and the control device is connected with the twisting motor 1, the winding motor 5, the yarn-guiding motor 10 and the yarn-guiding motor 20. Thereby controlling the coordinated work of the actions of each motor. The twisting motor 1 and the winding motor 5 are AC motors, and the yarn guiding motor 10 and the yarn guiding motor 20 are AC servo motors.

Twisting is mainly completed by the high-speed rotation of the spindle, so that the yarn can get the required twist. According to the basic theory of twisting, the yarn twist T (twist/m) is:

In the formula, α——intersection angle (°), V guide——reciprocating speed of guide rod (m/min), V roll——linear speed of friction cylinder surface (m/min), n spindle——spindle speed (rpm) , T——twist (twist/m). V guide, V reel and n spindle are respectively related to the speed of servo motor, winding motor and twisting motor. It can be seen from formula 1 and formula 2 that the speed and direction of the winding motor and servo motor are determined by inputting the speed of the main motor, yarn twist and twist direction, and cross angle. It can be seen that the twist size is related to the spindle speed n spindles and the winding speed n rolls. After the spindle speed is determined, the transformation of the twist can be realized conveniently by changing the speed of the winding motor without changing the gear mechanism. The multi-motor control and transmission device of the new twisting machine cancels the traditional yarn guide forming cam mechanism, twist conversion gear mechanism, anti-bulge, and hard edge mechanism; the servo motor and ball screw are used to realize the yarn guide movement by program control ; Winding rotary movement is controlled by a separate motor frequency conversion. The whole system is centrally controlled by the microcomputer system, and functions such as anti-stacking and twist conversion can be completed through the program, and stepless speed regulation can be realized within the control range to obtain yarns with different twists, so the control is more convenient, and it is more suitable for small batches and multi-variety production . At the same time, due to the simple mechanical structure, it is conducive to maintenance and maintenance; the transmission line is shortened, the power consumption is reduced, and the failure rate is low.

Fig. 2 is a flow chart of the control system of an embodiment of the present invention.

Described control device comprises industrial computer 16, and described industrial computer 16 is connected with frequency converter I 181 and frequency converter II 182, and frequency converter I 181 is connected with twisting motor 1, and frequency converter II 182 is connected with winding motor 5; The machine is connected with a PCI card, and the PCI card is connected with a driver I and a driver II, and the driver I and the driver II are respectively connected with the yarn guide motor 10 and the yarn guide motor 20.

Frequency conversion technology has good speed regulation performance, significant energy saving effect, and realizes stepless speed regulation on site. Twisting motor 1 and winding motor 5 adopt asynchronous motors and use frequency conversion speed regulation technology. Since the frequency converter generally has a serial communication function, it can be adjusted through digital control, that is, the industrial computer and the frequency converter through RS-485 communication. The speed of the motor realizes the frequency conversion speed regulation of the motor, so that a host computer controls multiple frequency converters to form a network control. Twisting motor 1 and winding motor 5 are controlled by upper computer 16 using RS-485 communication control frequency converter to realize stepless motor speed regulation, which has the characteristics of long communication distance and strong anti-interference ability. The PCI card can be a 4-axis stepping/pulse servo motion control card based on PCI bus technology, and its motion control chip is composed of X, Y, Z and U axes with the same function. It is composed of complementary parts, which can realize the motion control chip of 4-axis servo motor/stepper motor at the same time. It outputs in the form of pulse train, and can perform position control, interpolation drive, speed control, etc. on the servo motor/stepper motor. It can meet the needs of high-speed driving, and the frequency accuracy of the pulse is high.

The servo motor has fast speed and high control precision position control and speed control. Using the servo motor can realize the speed and precision required for reciprocating yarn guiding, and obtain a good winding bobbin.

Fig. 3 is a schematic diagram of communication wiring between an industrial computer and a frequency converter according to an embodiment of the present invention.

The serial port communication converter 17 is equipped with an RS-485 communication interface, which can realize communication control with the industrial computer 16. During communication, a half-duplex mode is adopted. In the new twister multi-motor control system, during communication, the sending end of the industrial computer 16 is connected with the receiving ends of the frequency converter 181 and the frequency converter 182, and the receiving end of the industrial computer 16 is connected with the sending ends of the frequency converter 181 and the frequency converter 182. connected to form a half-duplex communication. For multiple frequency converters, the communication between different frequency converters and the industrial computer 16 can be realized by setting the frequency converter station number.

Fig. 4 is a structural diagram of the reciprocating yarn guiding system in an embodiment of the present invention.

The reciprocating yarn guide system of the multi-motor control and transmission device of the novel twisting machine is directly driven by the servo motor 10 and the servo motor 20 to move the left yarn guide rod 131 and the right yarn guide rod 132, and the servo motor 10 and the servo motor 20 The rotary motion is converted into the reciprocating linear motion of the left yarn guide rod 131 and the right yarn guide rod 132, so that the servo motor 10 and the servo motor 20 rotate forward and reverse continuously, so that the left yarn guide rod 131 and the right yarn guide rod 131 can be realized. 132 reciprocating linear motion. In order not to allow the left yarn guide rod 131 and the right yarn guide rod 132 to rush through the two ends due to the inertia of motion, and also for safety reasons, a proximity switch 201, approaching Switch 202, proximity switch 203, proximity switch 204, when the yarn guide rod moves to the limit position, the servo motor must rotate in reverse. Simultaneously, since the yarn is wound into shape to meet the requirements of anti-folding, anti-bulge and hard edge, it is very important for the servo motor to return to the origin, so between the proximity switch 201 and the proximity switch 203, the proximity switch 202 and the proximity switch Between 204, proximity switch 211, proximity switch 213, proximity switch 212, and proximity switch 214 are installed. Proximity switch 211, proximity switch 212, proximity switch 213, and proximity switch 214 play a deceleration role. Bigger speed operation runs into proximity switch 211, proximity switch 212 and proximity switch 213, after proximity switch 214 decelerates slowly, stops when running into proximity switch 201, proximity switch 202, proximity switch 203, proximity switch 204 again.

The above disclosures are only preferred embodiments of the present utility model, and of course cannot limit the scope of rights of the present utility model. Therefore, equivalent changes made according to the patent scope of the utility model are still covered by the utility model.

Claims (8)

1. A new type of multi-motor control and transmission device for a twisting machine, including a spindle that installs yarn balls and drives the yarn to rotate at a high speed; a winding friction cylinder that provides yarn winding motion; a reciprocating yarn guide forming Left and right yarn guide rods; it is characterized in that it includes a twisting motor, the twisting motor is connected with a pulley, and the pulley cooperates with the belt, and the belt drives the spindle through the bottom of the inner core shaft of the friction spindle; There is a winding motor, and the winding motor drives the winding friction cylinder through the cooperation of the belt and the pulley; it also includes two yarn guiding motors, and the two yarn guiding motors drive two yarns through the transmission device of the pulley and the belt respectively. The ball screw is installed at the output end, and the ball screw is respectively connected with the left and right yarn guide rods; a control device is also installed, and the control device is connected with the twisting motor, the winding motor and the yarn guide motor. 2. The multi-motor control and transmission device of a novel twisting machine according to claim 1 is characterized in that, the twisting motor and the winding motor are AC asynchronous motors, and the two yarn guiding motors For AC servo motor. 3. the multi-motor control and transmission device of a kind of novel twisting machine according to claim 2, is characterized in that, described control device comprises industrial computer, and described industrial computer is connected with frequency converter I and frequency converter II, The frequency converter I is connected to the twisting motor, and the frequency converter II is connected to the winding motor; the industrial computer is connected to a PCI card, and the PCI card is connected to a driver I and a driver II, and the driver I and the driver II are respectively connected to a yarn guiding motor. 4. The multi-motor control and transmission device of a novel twisting machine according to claim 1 is characterized in that it also includes a serial port communication converter, the input end of the serial port communication converter is connected to an industrial computer, and the serial port communication The output end of the converter is connected with the frequency converter. 5. The multi-motor control and transmission device of a novel twisting machine according to claim 4, wherein the serial communication converter is a frequency converter equipped with an RS-485 communication interface. 6. The multi-motor control and transmission device of a novel twisting machine according to claim 3, wherein the PCI card is a servo motion control card. 7. The multi-motor control and transmission device of a novel twisting machine according to claim 1, characterized in that four stop proximity switches are also installed, and the stop proximity switches are installed on the left and right yarn guides respectively. The limit position of rod movement stops the controller connected with the proximity switch. 8. The multi-motor control and transmission device of a novel twisting machine according to claim 1 or 7, is characterized in that four deceleration proximity switches are also installed, and the deceleration proximity switches are installed on the left and right sides respectively. The deceleration proximity switch is connected to the controller between the start position and the limit position of the movement of the yarn guide rod and close to the limit position.

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