CN112130522A - Cloth feeding control system of cloth paving machine and cloth paving device - Google Patents
Cloth feeding control system of cloth paving machine and cloth paving device Download PDFInfo
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- CN112130522A CN112130522A CN202011142449.3A CN202011142449A CN112130522A CN 112130522 A CN112130522 A CN 112130522A CN 202011142449 A CN202011142449 A CN 202011142449A CN 112130522 A CN112130522 A CN 112130522A
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- cloth
- controller
- servo driver
- output end
- encoder
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
- G05B19/054—Input/output
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/10—Plc systems
- G05B2219/13—Plc programming
- G05B2219/13099—Function block, OOP, various functions grouped, called by name as servo
Abstract
The invention discloses a cloth feeding control system and a cloth spreading device of a cloth spreading machine, which comprise an encoder, a controller, an on-off control device and a servo driver, wherein the encoder is used for detecting the moving speed of the cloth spreading machine; the output end of the encoder is electrically connected with the input end of the on-off control device, the first output end of the controller is connected with the control end of the on-off control device, the output end of the on-off control device is connected with the input end of the servo driver, and the input end of the servo driver is also connected with the second output end of the controller; the communication port of the controller is connected with the servo driver to adjust the gear ratio of the servo driver, and the output end of the servo driver is electrically connected with the cloth releasing motor. According to the invention, by arranging the on-off control device and adjusting the gear ratio of the servo driver through the controller, the delay caused by the fact that pulse signals generated by the encoder need to be calculated in the controller and then are transmitted to the servo driver is avoided, and the control precision of the cloth releasing motor of the cloth paving machine during cloth releasing is improved.
Description
Technical Field
The invention relates to the field of cloth paving machines, in particular to a cloth conveying control system and a cloth paving device of a cloth paving machine.
Background
The cloth spreading machine is used as an important cloth spreading and stacking tool in the textile industry, so that a large amount of manpower is saved for the textile industry; the cloth paving machine mainly paves coiled cloth on a machine table, and then cuts and reprocesses the paved cloth by other machines.
The cloth feeding device and the cloth spreading device of the conventional cloth spreading machine are respectively driven by independent motors, as shown in fig. 1, the speed of the cloth spreading machine relative to the movement of a workbench is measured through an encoder 1, speed information generated by the encoder 1 is transmitted to a PLC (programmable logic controller) 2, the PLC 2 carries out operation through set parameters, and pulse signals after operation are transmitted to a servo driver 4 to drive a cloth spreading motor 5 to operate, so that the speed of the cloth spreading motor 5 is adjusted in real time according to the moving speed of the spread cloth of the cloth spreading machine. However, since the pulse signal generated by the encoder 1 needs to be transmitted to the PLC controller 2 for processing and then transmitted to the servo driver 4 by the PLC controller 2, it takes a certain time in the processing stage of the PLC controller 2, so that a delay is easily generated in the speed change of the cloth feeding motor 5 with respect to the movement speed change of the cloth laying machine, and a large deviation is easily generated in a small delay due to a large operation speed of the cloth laying machine.
In view of the above, the applicant has made an intensive study on the above-mentioned defects in the prior art, and has made this invention.
Disclosure of Invention
The invention mainly aims to provide a cloth feeding control system of a cloth paving machine and a cloth paving device, which have the characteristics of reducing the delay from a pulse signal generated by an encoder to a servo driver of a cloth releasing motor and improving the cloth paving effect.
In order to achieve the above purpose, the solution of the invention is:
a cloth feeding control system of a cloth paving machine comprises an encoder, a controller, an on-off control device and a servo driver, wherein the encoder is used for detecting the moving speed of the cloth paving machine; the output end of the encoder is electrically connected with the input end of the on-off control device, the first output end of the controller is connected with the control end of the on-off control device, the output end of the on-off control device is connected with the input end of the servo driver, and the input end of the servo driver is also connected with the second output end of the controller; the communication port of the controller is connected with the servo driver to adjust the gear ratio of the servo driver, and the output end of the servo driver is electrically connected with the cloth releasing motor.
Further, the output end of the encoder is electrically connected with the input end of the controller.
Further, the controller is a PLC controller.
Further, the on-off control device is a relay; the relay is a solid state relay.
Furthermore, the output end of the on-off control device is connected with a one-way conduction device.
Further, the output end of the on-off control device is connected with a diode.
Further, the controller is also connected with an operation panel.
Further, the operation panel is a touch screen panel.
The cloth spreading device comprises a workbench, a cloth spreading machine capable of moving on the workbench and a cloth feeding control system, wherein a cloth placing motor is arranged on the cloth spreading machine and is a servo motor, and an encoder is installed on the cloth spreading machine and moves along with the movement of the cloth spreading machine.
Further, the controller, the on-off control device and the servo driver are all installed on the cloth paving machine.
After adopting the structure, the cloth feeding control system and the cloth spreading device of the cloth spreading machine, which are provided by the invention, have the following beneficial effects:
the controller controls the on-off control device to be switched on and off, when the on-off control device is switched on, the cloth paving machine walks to drive pulse signals generated by the encoder to be transmitted to the on-off control device, and the pulse signals are transmitted to the servo driver through the on-off control device to drive the cloth placing motor to operate. And the controller transmits the set gear ratio parameters to the servo driver at different stages of cloth releasing so as to adjust the gear ratio in the servo driver. Because the pulse signal that the encoder produced can directly be transmitted to servo driver through on-off control device, change and drive through the gear ratio of servo driver inside and put the cloth motor, need not pass through the operation of controller, reduced because the hysteresis that the controller operation caused, the precision when having improved the shop cloth machine work feed.
And the input end of the servo driver is also connected with the second output end of the controller, so that when the controller switches the on-off control device into an off state, the controller can transmit a pulse signal to the servo driver through the second output end.
And thirdly, the on-off control device is a solid-state relay, so that the cloth feeding control system has the characteristic of sensitive action and better service performance.
And thirdly, the output end of the encoder is also electrically connected with the input end of the controller. Therefore, the cloth feeding control mechanism can be switched into a traditional control mode, the encoder transmits pulse signals to the controller, the controller performs operation and transmits the pulse signals to the servo driver, a user can select the control mode conveniently, and the function of the cloth spreading machine is expanded.
And fourthly, through setting the unidirectional conduction device, the current signal can only be output from the output end of the controller, the encoder is prevented from being interfered by reverse current, and the control is more accurate.
Compared with the prior art, the invention avoids delay lag caused by the fact that pulse signals generated by the encoder need to be calculated in the controller and then transmitted to the servo driver by arranging the on-off control device and adjusting the gear ratio of the servo driver through the controller, thereby improving the control precision of the cloth spreading motor of the cloth spreading machine during cloth spreading.
Drawings
Fig. 1 is a schematic structural view of a conventional cloth feeding control system.
Fig. 2 is a schematic structural diagram of a cloth feeding control system of a cloth paving machine according to the present invention.
Fig. 3 is a schematic structural diagram of a cloth feeding control system having a diode as a unidirectional conducting device.
In the figure:
an encoder 1; a PLC controller 2; a solid-state relay 3; a servo driver 4; a cloth releasing motor 5; a diode 6; an output 11 of the encoder; a first output 21 of the controller; a second output 22 of the controller; a communication port 23 of the controller; an input 24 of the controller; an input 31 of an on-off control; a control terminal 32 of the on-off control device; an output 33 of the on-off control.
Detailed Description
In order to further explain the technical solution of the present invention, the present invention is explained in detail by the following specific examples.
As shown in fig. 2 and fig. 3, the cloth feeding control system of the cloth paving machine according to the present invention comprises an encoder 1 for detecting the moving speed of the cloth paving machine, a controller, an on-off control device and a servo driver 4; the output end 11 of the encoder 1 is electrically connected with the input end 31 of the on-off control device, the first output end 21 of the controller is connected with the control end 32 of the on-off control device, the output end 33 of the on-off control device is connected with the input end 41 of the servo driver 4, and the input end 41 of the servo driver 4 is also connected with the second output end 22 of the controller; the communication port 23 of the controller is connected with the servo driver 4 to adjust the gear ratio of the servo driver 4, and the output end 42 of the servo driver 4 is electrically connected with the cloth releasing motor 5. Preferably, the controller is a PLC controller 2. Preferably, the on-off control device is a relay; preferably, the on-off control device is a solid-state relay 3, and has the characteristic of sensitive action, so that the cloth feeding control mechanism has better use performance. The on-off control means may also be an electrical element capable of functioning as a relay.
Therefore, according to the cloth spreading machine cloth feeding control system and the cloth spreading device, the controller controls the on and off of the relay, when the on-off control device is switched on, the cloth spreading machine travels to drive the pulse signals generated by the encoder 1 to be transmitted to the on-off control device, and the pulse signals are transmitted to the servo driver 4 through the on-off control device to drive the cloth placing motor 5 to operate. The controller transmits the set gear ratio parameters to the servo driver 4 at different stages of the cloth release to adjust the gear ratio in the servo driver 4. Because the pulse signal that encoder 1 produced can directly be transmitted to servo driver 4 through on-off control device, changes and drives through the gear ratio of servo driver 4 inside and put cloth motor 5, need not pass through the operation of controller, has reduced because the hysteresis that the operation of controller caused, the precision when having improved the cloth paving machine work feed. The input end of the servo driver 4 is also connected with the second output end of the controller, so that when the controller switches the on-off control device to be in an off state, the controller can transmit a pulse signal to the servo driver 4 through the second output end.
In different stages of cloth laying, when different cloth is laid, the ratio of the cloth laying speed of the cloth laying motor 5 to the moving speed of the cloth laying machine is different, and adjustment needs to be performed in the cloth pulling process. When the ratio is adjusted, the controller sends the set gear ratio parameter to the servo driver 4 to adjust the gear ratio in the servo driver 4. After the gear ratio adjustment, the output of the servo driver 4 outputs a pulse signal at the new ratio. In this way, continuous calculation of the pulse signal of the encoder 1 by the controller is not required in real time, and the servo driver 4 is controlled to change the gear ratio only when the gear ratio is changed. Therefore, the delay of the pulse signal is greatly reduced, and the cloth spreading precision is improved.
Preferably, the output 11 of the encoder 1 is also electrically connected to the input 24 of the controller. Therefore, the cloth feeding control mechanism can be switched to a traditional control mode, the encoder 1 transmits pulse signals to the controller, the controller performs operation and transmits the pulse signals to the servo driver 4, a user can select the pulse signals conveniently, and the functions of the cloth spreading machine are expanded.
Preferably, the output end of the on-off control device is connected with a one-way conduction device. Through setting up the unidirectional flux device for current signal can only follow the output of controller is exported, prevents that reverse current from disturbing encoder 1, makes control more accurate. Preferably, the output end of the on-off control device is connected with a diode 6 to prevent current from reversely interfering the encoder 1 and improve control precision. Preferably, a solid-state relay 3 capable of blocking a reverse current may also be employed to avoid the reverse current from interfering with the encoder 1.
Preferably, the controller is further connected with an operation panel. Can set for the parameter of controller through operating panel during the use to shop cloth machine spreads cloth work to the cloth of different material parameters. Preferably, the operation panel is a touch screen panel.
The invention also provides a cloth spreading device which comprises a workbench, a cloth spreading machine capable of moving on the workbench and a cloth feeding control system, wherein the cloth spreading machine is provided with a cloth placing motor 5, the cloth placing motor 5 is a servo motor, and the encoder 1 is installed on the cloth spreading machine and moves along with the movement of the cloth spreading machine. Preferably, the controller, the on-off control device and the servo driver 4 are all arranged on the cloth spreading machine.
Compared with the prior art, the invention avoids the delay lag caused by the fact that the pulse signal generated by the encoder 1 needs to be calculated in the controller and then is transmitted to the servo driver 4 by arranging the on-off control device and adjusting the gear ratio of the servo driver 4 through the controller, thereby improving the control precision when the cloth is put by the cloth putting motor 5 of the cloth paving machine.
The above embodiments and drawings are not intended to limit the form and style of the present invention, and any suitable changes or modifications thereof by those skilled in the art should be considered as not departing from the scope of the present invention.
Claims (10)
1. A cloth feeding control system of a cloth paving machine is characterized by comprising an encoder, a controller, an on-off control device and a servo driver, wherein the encoder is used for detecting the moving speed of the cloth paving machine; the output end of the encoder is electrically connected with the input end of the on-off control device, the first output end of the controller is connected with the control end of the on-off control device, the output end of the on-off control device is connected with the input end of the servo driver, and the input end of the servo driver is also connected with the second output end of the controller; the communication port of the controller is connected with the servo driver to adjust the gear ratio of the servo driver, and the output end of the servo driver is electrically connected with the cloth releasing motor.
2. A cloth feeding control system of a cloth laying machine as claimed in claim 1, wherein the output of said encoder is also electrically connected to the input of said controller.
3. A cloth feeding control system of a cloth laying machine according to claim 1, characterized in that said controller is a PLC controller.
4. A cloth feeding control system of a cloth laying machine according to claim 1, wherein said on-off control means is a relay, and said relay is a solid state relay.
5. The cloth feeding control system of a cloth paving machine as claimed in claim 1, wherein the output end of the on-off control device is connected with a one-way conduction device.
6. The cloth feeding control system of a cloth paving machine as claimed in claim 1, wherein the output end of said on-off control device is connected with a diode.
7. A cloth feeding control system of a cloth laying machine as claimed in claim 1, wherein said controller is further connected with an operation panel.
8. A cloth feeding control system of a cloth laying machine according to claim 7, wherein said operation panel is a touch screen panel.
9. A cloth spreading device is characterized by comprising a workbench, a cloth spreading machine capable of moving on the workbench and a cloth feeding control system according to any one of claims 1 to 8, wherein a cloth placing motor is arranged on the cloth spreading machine, the cloth placing motor is a servo motor, and an encoder is mounted on the cloth spreading machine and moves along with the movement of the cloth spreading machine.
10. A cloth spreading device as claimed in claim 9 wherein said controller, on-off control and servo drive are mounted on said cloth spreading machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011142449.3A CN112130522A (en) | 2020-10-23 | 2020-10-23 | Cloth feeding control system of cloth paving machine and cloth paving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011142449.3A CN112130522A (en) | 2020-10-23 | 2020-10-23 | Cloth feeding control system of cloth paving machine and cloth paving device |
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| Publication Number | Publication Date |
|---|---|
| CN112130522A true CN112130522A (en) | 2020-12-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011142449.3A Pending CN112130522A (en) | 2020-10-23 | 2020-10-23 | Cloth feeding control system of cloth paving machine and cloth paving device |
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| CN (1) | CN112130522A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113359602A (en) * | 2021-07-10 | 2021-09-07 | 义乌市盈云科技有限公司 | Central cloth discharging control system equipment |
| WO2022165703A1 (en) * | 2021-02-04 | 2022-08-11 | 拓卡奔马机电科技有限公司 | Cloth spreading machine control method for implementing code scanning identification control |
-
2020
- 2020-10-23 CN CN202011142449.3A patent/CN112130522A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022165703A1 (en) * | 2021-02-04 | 2022-08-11 | 拓卡奔马机电科技有限公司 | Cloth spreading machine control method for implementing code scanning identification control |
| CN113359602A (en) * | 2021-07-10 | 2021-09-07 | 义乌市盈云科技有限公司 | Central cloth discharging control system equipment |
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