阅读说明：本技术 一种电子输纱系统 (Electronic yarn conveying system ) 是由 黄毅杨 骆汉城 许金梁 林庆龙 于 2021-09-17 设计创作，主要内容包括：本发明涉及圆机输纱技术领域,一种电子输纱系统,包括主机和若干个从机,所述从机为电子输纱器,其特征在于,主机与从机之间通过485总线通讯连接；主机包括主机单片机,主机单片机分别连接有看门狗自复位电路二、数码显示电路、通讯电路二和按键电路,还包括依次连接的整流滤波电路二和稳压电路二；从机包括从机单片机,从机单片机分别连接有看门狗自复位电路一、拨码开关电路、通讯电路一、前探断纱检测电路、后探断纱检测电路以及剪纱检测电路,还包括依次连接的整流滤波电路一和稳压电路一,所述通讯电路一和所述通讯电路二之间连接有485总线。本发明提供了一种电子输纱系统,可实时进行分段调节及速度控制,安装亦灵活方便。(The invention relates to the technical field of yarn feeding of circular machines, in particular to an electronic yarn feeding system which comprises a host and a plurality of slave machines, wherein the slave machines are electronic yarn feeders and are characterized in that the host is in communication connection with the slave machines through 485 buses; the host comprises a host single chip microcomputer which is respectively connected with a watchdog self-reset circuit II, a digital display circuit, a communication circuit II and a key circuit, and further comprises a rectification filter circuit II and a voltage stabilizing circuit II which are sequentially connected; the slave machine comprises a slave machine single chip microcomputer, the slave machine single chip microcomputer is respectively connected with a watchdog self-reset circuit I, a dial switch circuit, a communication circuit I, a front detection broken yarn detection circuit, a rear detection broken yarn detection circuit and a yarn cutting detection circuit, the slave machine single chip microcomputer further comprises a rectification filter circuit I and a voltage stabilizing circuit I which are sequentially connected, and a 485 bus is connected between the communication circuit I and the communication circuit II. The invention provides an electronic yarn conveying system which can carry out sectional adjustment and speed control in real time and is flexible and convenient to install.)

1. An electronic yarn conveying system comprises a host and a plurality of slave machines, wherein the slave machines are electronic yarn conveying devices, and the electronic yarn conveying system is characterized in that the host is in communication connection with the slave machines through 485 buses;

the main machine comprises a main machine single chip microcomputer, the main machine single chip microcomputer is respectively connected with a watchdog self-resetting circuit II, a digital display circuit, a communication circuit II and a key circuit, and the main machine single chip microcomputer further comprises a rectification filter circuit II and a voltage stabilizing circuit II which are sequentially connected, the input end of the rectification filter circuit II is connected with a power supply, and the output end of the voltage stabilizing circuit II is respectively connected with the watchdog self-resetting circuit II, the main machine single chip microcomputer, the digital display circuit, the communication circuit II and the key circuit;

the slave machine comprises a slave machine single chip microcomputer, wherein the slave machine single chip microcomputer is respectively connected with a watchdog self-reset circuit I, a dial switch circuit, a communication circuit I, a front detection broken yarn detection circuit, a rear detection broken yarn detection circuit and a yarn cutting detection circuit, the dial switch circuit is used for setting the addresses of the slave machines, the slave machines with the same address are set into the same group, and the master machine can execute the same control instruction on the slave machines in the same group; the automatic yarn cutting device is characterized by further comprising a first rectifying filter circuit and a first voltage stabilizing circuit which are sequentially connected, wherein the input end of the first rectifying filter circuit is connected with a power supply, and the output end of the first voltage stabilizing circuit is respectively connected with the first watchdog self-reset circuit, the first slave singlechip, the first communication circuit, the first forward yarn detection circuit, the second backward yarn detection circuit and the yarn cutting detection circuit;

and a 485 bus is connected between the first communication circuit and the second communication circuit.

2. The electronic yarn feeding system of claim 1, wherein the forward detection broken yarn detection circuit is configured to detect a broken yarn condition of the yarn input of the electronic yarn feeder; the rear detection broken yarn detection circuit is used for detecting the broken yarn condition output by the yarn of the electronic yarn feeder; the yarn cutting detection circuit is used for detecting the condition that the yarn output of the electronic yarn feeder is cut off.

3. The electronic yarn feeding system as claimed in claim 1 or 2, wherein the forward detecting broken yarn detecting circuit, the backward detecting broken yarn detecting circuit and the yarn cutting detecting circuit all adopt 2 photoelectric couplers connected in parallel, wherein one photoelectric coupler outputs a signal to a master controller of a large circle machine, and the other photoelectric coupler outputs a signal to the slave single chip microcomputer.

4. The electronic yarn feeding system of claim 4, wherein the main controller of the big circular machine is connected with the main machine in a bus communication manner.

5. The electronic yarn feeding system as claimed in claim 1 or 2, wherein the slave single-chip microcomputer adopts an STC89C52RC chip, the front yarn detection circuit outputs a front yarn detection signal to the second pin of the slave single-chip microcomputer, the rear yarn detection circuit outputs a rear yarn detection signal to the first pin of the slave single-chip microcomputer, and the yarn cutting detection circuit outputs a slave yarn cutting signal to the third pin of the slave single-chip microcomputer.

6. The electronic yarn feeding system as claimed in claim 1, wherein the slave single chip microcomputer is further connected with a driving circuit and a motor in sequence, and the driving circuit is used for receiving signals of the slave single chip microcomputer to drive the motor to rotate.

7. The electronic yarn feeding system as claimed in claim 1, wherein the slave further comprises a body, a yarn feeder disposed at the top of the body, a forward swing link assembly located at a yarn output side of the yarn feeder, a yarn storage and feeding wheel located below the forward swing link assembly, the yarn storage and feeding wheel located at a side of the body, and a rear swing link assembly located below the yarn storage and feeding wheel; the rear detection swing rod assembly comprises a swing rod, the top of the swing rod is connected with a balancing weight, and the balancing weight is rotatably connected in the machine body; still including fixing spy porcelain eye frame after on the organism, spy porcelain eye frame's vertical transversal personally submits U type structure after, and its each embedding of downside is provided with the back and visits out the yarn porcelain eye on its top and bottom, and the slotted hole has been seted up in its leading flank embedding, and the slotted hole inside callipers is equipped with the locating part, the locating part can remove and get into in the organism at the slotted hole, and is located the below of balancing weight.

8. The electronic yarn feeding system of claim 1, wherein the key circuit comprises a start key, a stop key, a forward and reverse key, an acceleration key, a deceleration key and a function key; the starting key is used for starting all the slaves; the stop key is used for stopping all the slave machines; the positive and negative keys are used for switching the yarn feeding directions of all the slave machines in the same group; the acceleration key is used for increasing the speed of all the slaves in the same group; the speed reduction key is used to reduce the speed of all slaves in the same group.

9. An electronic yarn feeding system according to claim 1, characterised in that the workflow of said system comprises the following steps:

step 1: setting a corresponding slave address through the dial switch on the slave;

step 2: the slave computer reads the setting of the dial switch to perform grouping management, and the slave computers with the same dial address are summarized into the same group;

and 3, step 3: the host computer performs key scanning;

step 4, the host machine judges whether the key circuit is pressed down, if yes, the step 5 is entered, if not, the step 3 is returned;

and 5, step 5: the host machine carries out time delay debouncing on the key judged in the step 4;

and 6, step 6: the host machine judges whether a key is pressed again and judges which key is pressed, if yes, the step 7 is entered, if no key is pressed, the step 3 is returned;

and 7, step 7: the program executes corresponding programs for all the groups or all the slave machines in the same group according to the detected key command;

and 8, step 8: and (6) ending.

10. An electronic yarn feeding system as claimed in claim 9, characterized in that the dial switch is set as an N-bit binary dial switch, the dial switch is turned OFF with a corresponding bit of 0, the dial switch is turned ON with a corresponding bit of 1, and the dial switch is settable to 2ⁿEach address can correspond to 2ⁿAnd (4) grouping.

Technical Field

The invention relates to the technical field of yarn conveying of circular machines, in particular to an electronic yarn conveying system.

Background

The circular knitting machine is a textile device which utilizes a knitting needle to hook yarns of various raw materials and varieties into loops and then is connected into knitted fabrics through a series sleeve. The multi-station synchronous rotation of the yarn feeder of the existing circular machine is realized by a gear and a belt, the production mode of the circular machine has low efficiency, relatively high energy consumption and labor cost, pure mechanical transmission, higher requirement on the matching precision of the installation size, higher installation difficulty and difficulty in realizing real-time segmentation and speed adjustment;

disclosure of Invention

Based on the electronic yarn conveying system, the electronic yarn conveying system can perform segmented adjustment and speed control in real time, and is flexible and convenient to install.

In order to achieve the purpose, the invention adopts the following technical scheme:

an electronic yarn conveying system comprises a host and a plurality of slave machines, wherein the slave machines are electronic yarn conveying devices, and the host is in communication connection with the slave machines through 485 buses;

the main machine comprises a main machine single chip microcomputer, the main machine single chip microcomputer is respectively connected with a watchdog self-resetting circuit II, a digital display circuit, a communication circuit II and a key circuit, and the main machine single chip microcomputer further comprises a rectification filter circuit II and a voltage stabilizing circuit II which are sequentially connected, the input end of the rectification filter circuit II is connected with a power supply, and the output end of the voltage stabilizing circuit II is respectively connected with the watchdog self-resetting circuit II, the main machine single chip microcomputer, the digital display circuit, the communication circuit II and the key circuit;

the slave machine comprises a slave machine single chip microcomputer, wherein the slave machine single chip microcomputer is respectively connected with a watchdog self-reset circuit I, a dial switch circuit, a communication circuit I, a front detection broken yarn detection circuit, a rear detection broken yarn detection circuit and a yarn cutting detection circuit, the dial switch circuit is used for setting the addresses of the slave machines, the slave machines with the same address are set into the same group, and the master machine can execute the same control instruction on the slave machines in the same group; the automatic yarn cutting device is characterized by further comprising a first rectifying filter circuit and a first voltage stabilizing circuit which are sequentially connected, wherein the input end of the first rectifying filter circuit is connected with a power supply, and the output end of the first voltage stabilizing circuit is respectively connected with the first watchdog self-reset circuit, the first slave singlechip, the first communication circuit, the first forward yarn detection circuit, the second backward yarn detection circuit and the yarn cutting detection circuit;

and a 485 bus is connected between the first communication circuit and the second communication circuit.

Furthermore, the forward detection broken yarn detection circuit is used for detecting the broken yarn condition of the yarn input of the electronic yarn feeder; the rear detection broken yarn detection circuit is used for detecting the broken yarn condition output by the yarn of the electronic yarn feeder; the yarn cutting detection circuit is used for detecting the condition that the yarn output of the electronic yarn feeder is cut off.

Furthermore, the forward detection broken yarn detection circuit, the backward detection broken yarn detection circuit and the yarn cutting detection circuit all adopt 2 photoelectric couplers connected in parallel, wherein one photoelectric coupler outputs a signal to a master controller of the great circle machine, and the other photoelectric coupler outputs a signal to a singlechip of the slave machine.

Furthermore, the main controller of the great circle machine is in bus communication connection with the host.

Furthermore, the slave single-chip microcomputer adopts an STC89C52RC chip, the front detection yarn breakage detection circuit outputs a slave front detection yarn breakage signal to a second pin of the slave single-chip microcomputer, the rear detection yarn breakage detection circuit outputs a slave rear detection yarn breakage signal to a first pin of the slave single-chip microcomputer, and the yarn cutting detection circuit outputs a slave yarn cutting signal to a third pin of the slave single-chip microcomputer.

Furthermore, the slave single chip microcomputer is sequentially connected with a driving circuit and a motor, and the driving circuit is used for receiving signals of the slave single chip microcomputer and driving the motor to rotate.

The slave machine further comprises a machine body, a yarn feeder arranged at the top of the machine body, a forward-detection swing rod assembly positioned on one yarn output side of the yarn feeder, a yarn storage and feeding wheel positioned below the forward-detection swing rod assembly, a yarn storage and feeding wheel positioned on the side surface of the machine body, and a rear-detection swing rod assembly positioned below the yarn storage and feeding wheel; the rear detection swing rod assembly comprises a swing rod, the top of the swing rod is connected with a balancing weight, and the balancing weight is rotatably connected in the machine body; still including fixing spy porcelain eye frame after on the organism, spy porcelain eye frame's vertical transversal personally submits U type structure after, and its each embedding of downside is provided with the back and visits out the yarn porcelain eye on its top and bottom, and the slotted hole has been seted up in its leading flank embedding, and the slotted hole inside callipers is equipped with the locating part, the locating part can remove and get into in the organism at the slotted hole, and is located the below of balancing weight.

Furthermore, the key circuit comprises a start key, a stop key, a positive and negative key, an acceleration key, a deceleration key and a function key; the starting key is used for starting all the slaves; the stop key is used for stopping all the slave machines; the positive and negative keys are used for switching the yarn feeding directions of all the slave machines in the same group; the acceleration key is used for increasing the speed of all the slaves in the same group; the speed reduction key is used to reduce the speed of all slaves in the same group.

Further, the workflow of the system comprises the following steps:

step 1: setting a corresponding slave address through the dial switch on the slave;

step 2: the slave computer reads the setting of the dial switch to perform grouping management, and the slave computers with the same dial address are summarized into the same group;

and 3, step 3: the host computer performs key scanning;

step 4, the host machine judges whether the key circuit is pressed down, if yes, the step 5 is entered, if not, the step 3 is returned;

and 5, step 5: the host machine carries out time delay debouncing on the key judged in the step 4;

and 6, step 6: the host machine judges whether a key is pressed again and judges which key is pressed, if yes, the step 7 is entered, if no key is pressed, the step 3 is returned;

and 7, step 7: the program executes corresponding programs for all the groups or all the slave machines in the same group according to the detected key command;

and 8, step 8: and (6) ending.

Further, the dial switch is set to be an N-bit binary dial switch, the dial switch is turned OFF, the corresponding bit is 0, the dial switch is turned ON, the corresponding bit is 1, the dial switch can be set with 2N addresses and can correspond to 2N groups.

Compared with the prior art, the invention at least comprises the following advantages:

according to the electronic yarn conveying system, the yarn cutting detection function is added on the basis that the original volume of the slave yarn conveying device is not changed, yarn cutting detection alarm is realized, the number of yarn cutting detection devices serving as independent parts is reduced, and the production material and the production cost of the circular knitting machine are greatly saved. The dialing switch is adopted to set the dialing address of the slave, and the same dialing address is used as the same group, so that the address cycle calling time is saved, and the slave responds more quickly. The host can send control signals to the slave single-chip microcomputers through the bus, and all the slave single-chip microcomputers in all the groups or in the same group execute the same operation instructions, such as acceleration, deceleration, forward rotation, reverse rotation, starting, stopping and the like. The master machine controls the grouping in a signal parallel mode, and the synchronism among the slave machines is superior to that of the prior art. The main machine is in bus communication connection with the main controller of the circular knitting machine, and complex wiring between the main machine and the main controller of the circular knitting machine is avoided.