CN113155026A - Rocker arm position detection device of wire winding machine, control system and method of wire winding machine - Google Patents
Rocker arm position detection device of wire winding machine, control system and method of wire winding machine Download PDFInfo
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- CN113155026A CN113155026A CN202110449722.5A CN202110449722A CN113155026A CN 113155026 A CN113155026 A CN 113155026A CN 202110449722 A CN202110449722 A CN 202110449722A CN 113155026 A CN113155026 A CN 113155026A
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- 238000001514 detection method Methods 0.000 title claims abstract description 244
- 238000004804 winding Methods 0.000 title claims abstract description 61
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- 229920000049 Carbon (fiber) Polymers 0.000 abstract description 31
- 239000004917 carbon fiber Substances 0.000 abstract description 31
- 238000004519 manufacturing process Methods 0.000 abstract description 30
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 18
- 230000008569 process Effects 0.000 abstract description 12
- 238000007380 fibre production Methods 0.000 abstract description 10
- 230000009977 dual effect Effects 0.000 abstract description 9
- 238000010586 diagram Methods 0.000 description 9
- 238000009730 filament winding Methods 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 5
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- 238000012545 processing Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
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- 238000004458 analytical method Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- 239000000835 fiber Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
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Abstract
The invention discloses a rocker arm position detection device of a wire winding machine, a control system and a method of the wire winding machine, wherein the device comprises: a first position detection unit and a second position detection unit; the first position detection unit and the second position detection unit are both arranged on the wire collecting machine; the first position detection unit is configured to detect the position of a rocker arm of the wire winding machine to obtain a first position detection signal; the second position detection unit is configured to detect the position of a rocker arm of the wire collecting machine to obtain a second position detection signal; a first position detection unit and a second position detection unit forming a dual position detector; the rocker arm position of the wire collecting machine is detected by using the first position detection unit and the second position detection unit at the same time, so that the dual detection of the rocker arm position of the wire collecting machine can be realized. This scheme, through in carbon fiber production process, promote the detection reliability to receiving the rocking arm position of silk machine, can guarantee the normal production of carbon fiber.
Description
Technical Field
The invention belongs to the technical field of automatic detection and control, and particularly relates to a rocker arm position detection device of a wire winding machine, a control system and a control method of the wire winding machine, in particular to a dual position detector capable of improving the detection reliability of the rocker arm position of the wire winding machine, a control system of the wire winding machine with the dual position detector and a control method of the wire winding machine.
Background
Carbon fiber is a special fiber composed of carbon elements. In the carbon fiber production process, the position detection of an object is a common position detection, and the realization of the function is generally completed by a position detector. For example: in the production process of carbon fibers, a yarn collecting machine is required to be used, and the position of a rocker arm of the yarn collecting machine is required to be detected. However, when the single position detector is used for detecting the position of the rocker arm of the yarn collecting machine, the detection reliability of the position of the rocker arm of the yarn collecting machine cannot be guaranteed, and the normal production of carbon fibers can be influenced.
The above is only for the purpose of assisting understanding of the technical aspects of the present invention, and does not represent an admission that the above is prior art.
Disclosure of Invention
The invention aims to provide a device for detecting the position of a rocker arm of a wire collecting machine, a control system and a method of the wire collecting machine, and aims to solve the problems that the detection reliability of the position of the rocker arm of the wire collecting machine cannot be guaranteed and the normal production of carbon fibers is influenced when the position of the rocker arm of the wire collecting machine is detected by a single position detector in the production process of the carbon fibers, so that the detection reliability of the position of the rocker arm of the wire collecting machine is improved in the production process of the carbon fibers, and the normal production effect of the carbon fibers can be achieved.
The invention provides a rocker arm position detection device of a wire winding machine, which comprises: a first position detection unit and a second position detection unit; the first position detection unit and the second position detection unit are both arranged on the wire collecting machine; the first position detection unit is configured to detect the position of a rocker arm of the wire winding machine to obtain a first position detection signal; the second position detection unit is configured to detect the position of a rocker arm of the wire winding machine to obtain a second position detection signal; the first position detection unit and the second position detection unit form a double position detector; the first position detection unit and the second position detection unit are used for detecting the position of the rocker arm of the wire winding machine at the same time, so that the position of the rocker arm of the wire winding machine can be detected doubly.
In some implementations, the first position detection unit includes: a first transmitter and a first receiver; the first transmitter capable of transmitting a first detection signal; the first receiver can receive the first detection signal under the condition that no obstacle exists between the first transmitter and the first receiver, and outputs a signal within a first set output signal range; the first receiver cannot receive the first detection signal and outputs a signal within a second set output signal range under the condition that an obstacle exists between the first transmitter and the first receiver; the second position detection unit includes: a second transmitter and a second receiver; the second transmitter capable of transmitting a second detection signal; the second receiver can receive the second detection signal and output a signal within a first set output signal range under the condition that no obstacle exists between the second transmitter and the second receiver; the second receiver may be configured to output a signal within a second set output signal range without receiving the second detection signal when an obstacle is present between the second transmitter and the second receiver.
In some implementations, a path between the first transmitter and the first receiver through which the first detection signal is transmitted serves as a first detection channel; a path for transmitting the second detection signal between the second transmitter and the second receiver is used as a second detection channel; the first detection channel and the second detection channel are arranged in a crossed mode, so that the position of the rocker arm of the wire collecting machine is detected between the first position detection unit and the second position detection unit in a crossed detection mode.
In some implementation processes, a structural part is arranged in a set range at the periphery of the wire collecting machine; the first emitter, the second emitter, the first receiver and the second receiver are mounted on the structural part and are positioned on the same plane with a rocker arm of the wire winding machine; a position of the rocker arm in a first detection channel between the first transmitter and the first receiver and in a second detection channel between the second transmitter and the second receiver; preferably, the rocker arm is located at an intersection of the first detection channel and the second detection channel.
In some implementations, an output line of the signal output terminal of the first receiver is denoted as a first output line; an output line of a signal output end of the second receiver is marked as a second output line; the first output line and the second output line are arranged in parallel.
In some implementation processes, a first unidirectional control module is arranged on an output line of a signal output end of the first receiver; meanwhile, a second one-way control module is also arranged on an output line of the signal output end of the second receiver.
In some implementations, in a case where a first unidirectional control module is disposed on an output line of a signal output terminal of the first receiver, the first unidirectional control module includes: a first diode; a signal output terminal of the first receiver connected to an anode of the first diode; the cathode of the first diode is connected to the controller of the wire take-up machine; under the condition that a second unidirectional control module is arranged on an output line of a signal output end of the second receiver, the second unidirectional control module comprises: a second diode; a signal output terminal of the second receiver connected to an anode of the second diode; and the cathode of the second diode is connected to the controller of the wire winding machine.
In some implementations, each of the first transmitter, the first receiver, the second transmitter, and the second receiver includes: and a laser detector.
In another aspect, the present invention provides a control system for a filament winding machine, including: a controller; further comprising: the rocker arm position detection device of the wire winding machine is arranged; the device for detecting the position of the rocker arm of the wire winding machine is configured to detect the position of the rocker arm of the wire winding machine at the same time to obtain a first position detection signal and a second position detection signal; the controller is configured to control the wire take-up machine according to any one effective signal of the first position detection signal and the second position detection signal.
The invention also provides a control method of the wire winding machine, which is matched with the control system of the wire winding machine, and comprises the following steps: the rocker position detection device of the wire winding machine is adopted to perform double detection on the rocker position of the wire winding machine to obtain a first position detection signal and a second position detection signal; and controlling the wire take-up machine according to any effective signal in the first position detection signal and the second position detection signal.
Therefore, according to the scheme of the invention, the position of the rocker arm of the yarn collecting machine is detected by the double position detectors in the production process of the carbon fibers, so that the detection reliability of the position of the rocker arm of the yarn collecting machine is improved in the production process of the carbon fibers, and the normal production of the carbon fibers can be ensured.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of a swing arm position detecting device of a yarn winding machine according to the present invention;
FIG. 2 is a schematic diagram of an embodiment of a position detector;
FIG. 3 is a schematic diagram of a receiver in the position detector shown in FIG. 2;
FIG. 4 is a schematic diagram of an embodiment of a dual position detector;
FIG. 5 is a schematic diagram of a receiving unit (having a first receiver and a second receiver) in the duplexed position detector shown in FIG. 4;
FIG. 6 is a schematic flow chart illustrating a control method of a yarn takeup machine according to an embodiment of the present invention;
fig. 7 is a schematic view of an installation structure of two transmitters and two receivers in the swing arm position detecting device of the yarn collecting machine of the present invention.
The reference numbers in the embodiments of the present invention are as follows, in combination with the accompanying drawings:
11-a first emitter; 12-a second emitter; 21-a first receiver; 22-a second receiver; 3-a rocker arm of the yarn collecting machine; s1 — first position; s2 — second position.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
According to an embodiment of the invention, a rocker arm position detection device of a wire winding machine is provided. Referring to fig. 1, a schematic diagram of an embodiment of the apparatus of the present invention is shown. The rocker position detection device of the wire winding machine can comprise: a first position detection unit and a second position detection unit. The first position detection unit and the second position detection unit are both installed on the wire collecting machine.
The first position detection unit is configured to detect the position of a rocker arm of the wire winding machine to obtain a first position detection signal.
The second position detection unit is configured to detect the position of the rocker arm of the wire winding machine to obtain a second position detection signal.
The first position detection unit and the second position detection unit form a dual position detector. The first position detection unit and the second position detection unit are used for detecting the position of the rocker arm of the wire winding machine at the same time, so that the position of the rocker arm of the wire winding machine can be detected doubly.
Thus, the reliability of position detection of an object can be improved by changing a single position detector into a double position detector. In the production process of carbon fibers, the detection reliability of the position detector for detecting the position of the object can be effectively improved, the reliability of the position detector for detecting the position of the rocker arm of the wire collecting machine is effectively improved, the fault time of false detection is reduced, the equipment investment and the maintenance cost are reduced, the normal position control of the object is ensured, and the production efficiency of carbon fiber production is improved.
In some implementations, the first position detection unit includes: a first transmitter and a first receiver. The first transmitter is capable of transmitting a first detection signal. The first receiver can receive the first detection signal and output a signal within a first set output signal range under the condition that no obstacle exists between the first transmitter and the first receiver. The first receiver cannot receive the first detection signal and outputs a signal within a second set output signal range when an obstacle exists between the first transmitter and the first receiver.
The second position detection unit includes: a second transmitter and a second receiver. The second transmitter is capable of transmitting a second detection signal. And the second receiver can receive the second detection signal and output a signal within a first set output signal range under the condition that no obstacle exists between the second transmitter and the second receiver. The second receiver may be configured to output a signal within a second set output signal range without receiving the second detection signal when an obstacle is present between the second transmitter and the second receiver.
For example: in each position detection unit, when there is no obstruction between the transmitter and the receiver, the receiver receives the laser light emitted from the transmitter and outputs a voltage of 24V (volts). When there is a shield, the output voltage is 0V (volt).
In some implementations, a path between the first transmitter and the first receiver through which the first detection signal is transmitted serves as a first detection channel. And a path for transmitting the second detection signal between the second transmitter and the second receiver is used as a second detection channel.
The first detection channel and the second detection channel are arranged in a crossed mode, so that the position of the rocker arm of the wire collecting machine is detected between the first position detection unit and the second position detection unit in a crossed detection mode.
The cross detection means that the detection channels (connecting lines between the transmitter and the receiver) of the two pairs of detectors are crossed. The position detection precision of the cross detection mode is higher.
In some implementations, the output line of the signal output terminal of the first receiver is referred to as a first output line. And an output line of the signal output end of the second receiver is marked as a second output line. The first output circuit and the second output circuit are connected in parallel and output to a signal input end of a controller such as a PLC.
Since the output signal of the position detector is a voltage signal, the parallel connection method is selected. In two position detectors arranged in parallel, the output signal of each position detector is supplied from the signal output terminal (S terminal) of the receiver in the position detector to the signal input terminal of the PLC terminal.
In some implementation processes, a structural part is arranged in a set range at the periphery of the wire collecting machine; the first emitter, the second emitter, the first receiver and the second receiver are mounted on the structural part and are positioned on the same plane with a rocker arm of the wire winding machine; a position of the rocker arm in a first detection channel between the first transmitter and the first receiver and in a second detection channel between the second transmitter and the second receiver; preferably, the rocker arm is located at an intersection of the first detection channel and the second detection channel.
For example: and a structural part is arranged beside the filament collecting machine. Two transmitters and two receivers are directly installed on a structural part beside the wire collecting machine, are positioned on the same plane with the rocker arm and are positioned in a space range capable of detecting the position of the rocker arm. Preferably, the location of the rocker arm is optimized just at the intersection point, as shown in fig. 4.
In some implementation processes, a first unidirectional control module is arranged on an output line of a signal output end of the first receiver; meanwhile, a second one-way control module is also arranged on an output line of the signal output end of the second receiver.
Specifically, in a parallel connection mode of output signals of the position detectors which are duplicated, when the problem of a line of a single position detector is avoided, the other position detector and the whole detection signal thereof are not influenced, the unidirectional conduction characteristic of the diode is applied to the position detector, the output signals of the two position detectors are output together, and the lines do not influence each other.
In some implementations, in a case where a first unidirectional control module is disposed on an output line of a signal output terminal of the first receiver, the first unidirectional control module includes: a first diode (e.g., first diode D1). And the signal output end of the first receiver is connected to the anode of the first diode. And the cathode of the first diode is connected to a controller (such as a signal input end of a PLC) of the wire take-up machine.
Under the condition that a second unidirectional control module is arranged on an output line of a signal output end of the second receiver, the second unidirectional control module comprises: a second diode (e.g., second diode D2). And the signal output end of the second receiver is connected to the anode of the second diode. And the cathode of the second diode is connected to the controller (such as a signal input end of a PLC) of the wire winding machine.
For example: the power supply end (P end) of the first receiver is connected with the positive electrode of a +24V direct-current power supply (+24V DC), the grounding end (G end) of the first receiver is connected with the negative electrode of the +24V direct-current power supply and is also connected with the grounding end of a controller (such as a PLC), the signal output end (S end) of the first receiver is connected with the anode of a first diode D1, and the cathode of a first diode D1 is connected with the signal input end of the PLC. A power supply end (P end) of the second receiver is connected with the positive electrode of the +24V direct-current power supply (+24V DC), a ground end (G end) of the second receiver is connected with the negative electrode of the +24V direct-current power supply and is also connected with the ground end of the controller (such as a PLC), a signal output end (S end) of the second receiver is connected with the anode of a second diode D2, and the cathode of a second diode D2 is connected with the signal input end of the PLC.
In some implementations, each of the first transmitter, the first receiver, the second transmitter, and the second receiver includes: and a laser detector.
For example: two pairs of laser detectors are adopted to detect the position of the rocker arm of the wire collecting machine in a shot mode.
Through a large number of tests, the technical scheme of the invention is adopted, and the position of the rocker arm of the wire collecting machine is detected by the double position detectors in the production process of the carbon fiber, so that the reliability of the position detection of the object is improved in the production process of the carbon fiber, for example, the reliability of the position detection of the rocker arm of the wire collecting machine is improved, and the normal production of the carbon fiber is further ensured.
According to the embodiment of the invention, the control system of the wire winding machine corresponding to the rocker position detection device of the wire winding machine is also provided. The control system of the wire winding machine can comprise: a controller; further comprising: the rocker arm position detection device of the wire winding machine is arranged; the device for detecting the position of the rocker arm of the wire winding machine is configured to detect the position of the rocker arm of the wire winding machine at the same time to obtain a first position detection signal and a second position detection signal; the controller is configured to control the wire take-up machine according to any one effective signal of the first position detection signal and the second position detection signal.
Due to the limitation of factors such as the field environment and the like, the reliability of the position detection of the object can be influenced, and if the reliability of the position detection of the rocker arm of the wire winding machine can be influenced, the normal production of the carbon fiber can be influenced. In the carbon fiber production process, the reliability of the position detection of the object is affected by field environmental factors, such as: in field environment factors, the angular offset of the detector can be mistakenly detected due to field vibration; dust on site may fall on the position detector, dust on the surface of the lens of the position detector may cause false detection, and so on. In the carbon fiber production process, the reliability of the position detection of the object is low, and the normal production of the carbon fiber can be influenced, for example, the stability and the continuity of the carbon fiber production can be greatly influenced.
In addition, when the detection signal of a single position detector is used for control, false detection often occurs, production is stopped, even waste products occur, production efficiency is reduced, and product quality cannot be guaranteed.
In a related scheme, a pair of laser detectors are adopted to detect the position of the swing arm of the wire collecting machine in a correlation mode. The laser detector is developed based on the laser scanning detection principle and consists of mainly laser scanning emitter comprising mechanical optical scanner and scanning optical system, laser scanning receiver comprising receiving optical system and photoelectronic converting system, controller comprising real-time control and data processing system with monochip computer as core and semiconductor laser power source. The laser detector works as follows: when no shielding object exists between the emitter and the receiver, the receiver receives laser emitted by the emitter and outputs 24V (volt) voltage; when there is a shield, the output voltage is 0V (volt).
For example: the laser detector with the model LOS-T5-4ZC1 can be adopted to detect the position of the swing arm of the wire collecting machine in a shot mode. When the swing arm of the wire collecting machine moves to the detection channel of the pair of laser detectors, signals of receivers in the pair of laser detectors are changed.
FIG. 2 is a schematic diagram of an embodiment of a position detector. As shown in fig. 2, a position detector is constructed using a transmitter and a receiver.
Fig. 3 is a schematic view of a receiver structure in the position detector shown in fig. 2. As shown in fig. 3, in a position detector as shown in fig. 2, a power supply terminal (P terminal) of a receiver is connected to a positive electrode of a +24V dc power supply (+24VDC), a ground terminal (G terminal) of the receiver is connected to a negative electrode of the +24V dc power supply and also to a ground terminal of a controller (e.g., PLC), and a signal output terminal (S terminal) of the receiver is connected to a signal input terminal of the PLC.
In the production process of the carbon fiber, the last link of the carbonization process is the filament collection. In the carbon fiber production process, if a certain station breaks, the swing arm position of the yarn collecting machine at the station can deviate, and the yarn collecting machine can be shut down in an interlocking manner. If the position signal of the swing arm position of the yarn collecting machine is wrong, the phenomenon of mistaken shutdown can be caused. Therefore, it is required to improve the detection accuracy of the swing arm position of the take-up machine to greatly improve the reliability of the control. Therefore, from the aspect of improving the detection effect, the scheme of the invention provides a method capable of ensuring accurate and reliable detection, the position detector of the swing arm position of the wire collecting machine is dualized, and is put into operation, the detection fault rate of the position detector can be reduced, the reliability of the operation of the control system of the wire collecting machine is ensured, and the production efficiency is improved.
When the scheme of the invention is implemented, a method for detecting the double cross of the detector needs to be determined according to field practice. For example: parallel detection, namely, at the detection moment, time difference exists, and the detection results of the two detectors are asynchronous; and the cross detection is realized, when the rocker arm acts, the two detectors can be shielded simultaneously, the detection time is consistent, and the detection result is accurate.
In some implementation processes, by researching the detection technology of the automatic position instrument, the invention further considers the factors such as field environment factors, signal transmission line influence and the like, provides a double position detector, can improve the detection reliability of the rocker arm position of the wire winding machine, solves the reliability problem of the position detection of the object, and ensures the reliability of control when the control is carried out based on the position detection of the object.
Specifically, the scheme of the invention improves the detection of a single position detector into a double position detector, and can improve the reliability of the position detection of the object. In the production process of carbon fibers, the detection reliability of the position detector for detecting the position of the object can be effectively improved, the reliability of the position detector for detecting the position of the rocker arm of the wire collecting machine is effectively improved, the fault time of false detection is reduced, the equipment investment and the maintenance cost are reduced, the normal position control of the object is ensured, and the production efficiency of carbon fiber production is improved.
Here, after the position of the rocker arm of the wire collecting machine is detected, the rocker arm is separated from the normal position, and an abnormality (such as wire breakage) occurs on site. False detection means that a signal that the rocker arm is detected occurs without a wire break. This situation can lead to downtime, down time and equipment maintenance. If the detection is accurate, the false detection can be avoided.
The position detector for double detection may be a parallel detection or a cross detection. Wherein, parallel detection means that the detection channels (such as the connecting line of the transmitter and the receiver) of the two pairs of position detectors are parallel; cross detection means that the detection channels (connecting lines of the transmitter and the receiver) of the two pairs of detectors are crossed. Compared with the two detection modes, the parallel detection mode may not be capable of simultaneously detecting the positions of the rocker arms of the yarn collecting machine, while the cross detection mode can ensure that the positions of the rocker arms of the yarn collecting machine are simultaneously detected due to the cross points, and the position detection precision of the cross detection mode is higher, so the cross detection mode is selected in the following embodiment.
Here, two kinds of detection methods compare, and parallel detection mode has the possibility that can not detect the rocking arm position of receiving the silk machine simultaneously, and the cross detection mode is because two ways of detecting channel central points are alternately, and the rocking arm can shelter from two ways of detecting channel simultaneously, consequently can guarantee to detect the rocking arm position of receiving the silk machine simultaneously, and the position detection precision of cross detection mode is higher.
The position detector which is duplicated may be connected in parallel or in series in the connection method of the output signal (i.e., the transmission method of the output signal). Since the output signal of the position detector which is doubled is a voltage signal, only the parallel system can be selected between the series and parallel systems. Under the parallel connection mode of the output signals of the position detectors which are duplicated, when the problem of the circuit of a single position detector is avoided, the other position detector and the whole detection signal thereof are not influenced, the unidirectional conduction characteristic of the diode is applied to the position detector, the output signals of the two position detectors are output together, but the circuits do not influence each other.
FIG. 4 is a schematic diagram of an embodiment of a dual position detector. As shown in fig. 4, the duplexed position detector includes: a first position detector consisting of a first transmitter and a first receiver, and a second position detector consisting of a second transmitter and a second receiver. A detection channel between the first transmitter and the first receiver is marked as a first detection channel; a detection channel between the second transmitter and the second receiver is marked as a second detection channel; the first detection channel and the second detection channel are arranged in a crossed mode, and the crossed point can be located at the middle point of the first detection channel and the second detection channel.
Fig. 5 is a schematic structural diagram of a receiving unit (having a first receiver and a second receiver) in the duplexed position detector shown in fig. 4. As shown in fig. 5, in the position detector of the dual type as shown in fig. 4, a power source terminal (P terminal) of the first receiver is connected to a positive terminal of a +24V DC power supply (+24V DC), a ground terminal (G terminal) of the first receiver is connected to a negative terminal of the +24V DC power supply and also to a ground terminal of a controller (e.g., PLC), a signal output terminal (S terminal) of the first receiver is connected to an anode of a first diode D1, and a cathode of a first diode D1 is connected to a signal input terminal of the PLC. A power supply end (P end) of the second receiver is connected with the positive electrode of the +24V direct-current power supply (+24V DC), a ground end (G end) of the second receiver is connected with the negative electrode of the +24V direct-current power supply and is also connected with the ground end of the controller (such as a PLC), a signal output end (S end) of the second receiver is connected with the anode of a second diode D2, and the cathode of a second diode D2 is connected with the signal input end of the PLC.
When the device is specifically implemented, a structural part is arranged beside the wire collecting machine. Two transmitters and two receivers are directly installed on a structural part beside the wire collecting machine, are positioned on the same plane with the rocker arm and are positioned in a space range capable of detecting the position of the rocker arm. Preferably, the location of the rocker arm is optimized just at the intersection point, as shown in fig. 4.
Fig. 7 is a schematic view of an installation structure of two transmitters and two receivers in the swing arm position detecting device of the yarn collecting machine of the present invention. As shown in fig. 7, a first structural member and a second structural member are provided near the filament winding machine, a first emitter 11 and a second emitter 12 are provided on the first structural member, and the second emitter 12 is above the first emitter 11. A first receiver 21 and a second receiver 22 are arranged on the second structural part. Preferably, the first structural element and the second structural element are at the same height with respect to the height of the take-up machine, the second emitter 12 being located above the first emitter 11 and the first receiver 21 being located above the second receiver 22.
When the end of the swing arm 3 of the take-up machine is at the first position S1, the swing arm 3 of the take-up machine is in the normal state, and the two transmitters (i.e., the first transmitter 11 and the second transmitter 12) and the two receivers (i.e., the first receiver 21 and the second receiver 22) cannot detect the position of the swing arm 3 of the take-up machine. When the end of the swing arm 3 of the take-up machine is at the second position S2, the swing arm 3 of the take-up machine is in an abnormal state, and the two transmitters and the two receivers can simultaneously detect the position of the swing arm 3 of the take-up machine.
In two position detectors arranged in parallel, the output signal of each position detector is supplied from the signal output terminal (S terminal) of the receiver in the position detector to the signal input terminal of the PLC terminal. In addition, in the two position detectors arranged in parallel, the output signals of both receivers are 24V (volts). If the output signals of the two receivers are connected in series, the voltage to the PLC end is 48V (volt), and the voltage is not matched with the receiving voltage of the PLC end; in addition, if the signals of the two receivers are connected in series, even if the output signals of the two receivers are both 12V (volt), the voltage to the PLC end is 24V (volt), and the two signals are connected in series according to the analysis of the detection result, so that the false detection rate is improved instead of being reduced, and therefore, only parallel connection can be selected.
The position of the rocker arm of the wire collecting machine is detected by the double position detector arranged in the embodiment, so that the reliability problem of the position detection of the rocker arm of the wire collecting machine is solved, the equipment failure time is correspondingly reduced, and the damage of mechanical equipment caused by false detection is avoided; thereby improving the production efficiency and the yield. In addition, when a single position detector line fails, the other normal work is not influenced, and the influence of the single position detector line failure on production is avoided.
By verification, the implementation of the scheme of the invention reduces the false alarm rate, such as: the number of times per year before implementation is 4, and the number of times per year after implementation is 0; the false detection detector is maintained by using daily maintenance time, and the reliability of a detection result in the production process is ensured. For example: in the case of deviation of the detection angle of a single transmitter and a single receiver (equivalent to shading), the output voltage of the single receiver is 0V, but the other receiver still has 24V (volt) output and can still normally detect.
In addition, the scheme of the invention also avoids the influence on the output caused by the line fault of a single position detector, for example, the output of the first receiver can be influenced by the grounding phenomenon of the power supply anode of the first receiver, if no diode is arranged in an output signal loop, the voltage of the second receiver can be influenced, thereby influencing the error of the output signal of the position detector, and the fault is prevented due to the unidirectional conduction characteristic of the diode. For example: if a single power supply line has a ground phenomenon, and the detection of the power supply level of the position detector is abnormal, the detection of the other power supply level cannot be influenced due to the unidirectional conduction function of the diode.
Since the processing and functions implemented by the control system of the yarn winding machine in this embodiment substantially correspond to the embodiments, principles and examples of the device shown in fig. 1, the description of this embodiment is not detailed, and reference may be made to the related description in the foregoing embodiments, which is not repeated herein.
Through a large number of tests, the technical scheme of the invention is adopted, and the dual position detectors are used for detecting the positions of the rocker arms of the yarn collecting machine in the production process of the carbon fibers, so that the detection reliability of the positions of the rocker arms of the yarn collecting machine can be improved, the problem of the reliability of the position detection of the object is solved, and the control reliability is ensured when the position detection based on the object is controlled.
According to an embodiment of the present invention, there is also provided a control method of a filament winding machine corresponding to the control system of the filament winding machine, as shown in fig. 6, which is a schematic flow chart of an embodiment of the method of the present invention. The control method of the wire winding machine can comprise the following steps: step S110 and step S120.
In step S110, the rocker position detecting device of the filament winding machine is adopted to perform double detection on the rocker position of the filament winding machine, so as to obtain a first position detection signal and a second position detection signal.
In step S120, the yarn winding machine is controlled according to any one valid signal of the first position detection signal and the second position detection signal.
Wherein, the output signals of the two receivers are connected to the PLC terminal in a parallel mode. In the two receivers, as long as one receiver output is 24V, the PLC end can receive 24V.
Thus, the reliability of position detection of an object can be improved by changing a single position detector into a double position detector. In the production process of carbon fibers, the detection reliability of the position detector for detecting the position of the object can be effectively improved, the reliability of the position detector for detecting the position of the rocker arm of the wire collecting machine is effectively improved, the fault time of false detection is reduced, the equipment investment and the maintenance cost are reduced, the normal position control of the object is ensured, and the production efficiency of carbon fiber production is improved.
Since the processing and functions implemented by the method of this embodiment substantially correspond to the embodiments, principles, and examples of the control system of the yarn winding machine, the description of this embodiment is not given in detail, and reference may be made to the related descriptions in the embodiments, which are not described herein again.
Through a large amount of tests verification, adopt the technical scheme of this embodiment, through setting up the position detector of dualization to in carbon fiber production process, utilize the position detector of dualization to detect the rocking arm position of receiving the silk machine, can reduce the detection fault rate of position detector, thereby guarantee the reliability of the control system operation of receiving the silk machine, improve production efficiency.
In summary, it is readily understood by those skilled in the art that the advantageous modes described above can be freely combined and superimposed without conflict.
The above description is only an example of the present invention, and is not intended to limit the present invention, and it is obvious to those skilled in the art that various modifications and variations can be made in the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (10)
1. The utility model provides a receive rocking arm position detection device of silk machine which characterized in that includes: a first position detection unit and a second position detection unit; the first position detection unit and the second position detection unit are both arranged on the wire collecting machine; wherein the content of the first and second substances,
the first position detection unit is configured to detect the position of a rocker arm of the wire winding machine to obtain a first position detection signal;
the second position detection unit is configured to detect the position of a rocker arm of the wire winding machine to obtain a second position detection signal;
the first position detection unit and the second position detection unit form a double position detector; the first position detection unit and the second position detection unit are used for detecting the position of the rocker arm of the wire winding machine at the same time, so that the position of the rocker arm of the wire winding machine can be detected doubly.
2. The device for detecting the position of the rocker arm of the wire take-up machine according to claim 1, wherein the first position detecting unit comprises: a first transmitter and a first receiver; the first transmitter capable of transmitting a first detection signal; the first receiver can receive the first detection signal under the condition that no obstacle exists between the first transmitter and the first receiver, and outputs a signal within a first set output signal range; the first receiver cannot receive the first detection signal and outputs a signal within a second set output signal range under the condition that an obstacle exists between the first transmitter and the first receiver;
the second position detection unit includes: a second transmitter and a second receiver; the second transmitter capable of transmitting a second detection signal; the second receiver can receive the second detection signal and output a signal within a first set output signal range under the condition that no obstacle exists between the second transmitter and the second receiver; the second receiver may be configured to output a signal within a second set output signal range without receiving the second detection signal when an obstacle is present between the second transmitter and the second receiver.
3. The device for detecting the position of the rocker arm of the wire take-up machine according to claim 2, characterized in that a path for transmitting the first detection signal between the first transmitter and the first receiver is used as a first detection channel;
a path for transmitting the second detection signal between the second transmitter and the second receiver is used as a second detection channel;
the first detection channel and the second detection channel are arranged in a crossed mode, so that the position of the rocker arm of the wire collecting machine is detected between the first position detection unit and the second position detection unit in a crossed detection mode.
4. The device for detecting the position of the rocker arm of the wire winding machine according to claim 2 or 3, wherein an output line of a signal output end of the first receiver is marked as a first output line; an output line of a signal output end of the second receiver is marked as a second output line; the first output line and the second output line are arranged in parallel.
5. The device for detecting the position of the rocker arm of the wire winding machine according to claim 2 or 3, characterized in that a structural member is arranged in a set range at the periphery of the wire winding machine;
the first emitter, the second emitter, the first receiver and the second receiver are mounted on the structural part and are positioned on the same plane with a rocker arm of the wire winding machine;
a position of the rocker arm in a first detection channel between the first transmitter and the first receiver and in a second detection channel between the second transmitter and the second receiver; preferably, the rocker arm is located at an intersection of the first detection channel and the second detection channel.
6. The device for detecting the position of the rocker arm of the wire winding machine according to any one of claims 2 to 5, wherein a first unidirectional control module is arranged on an output line of a signal output end of the first receiver; meanwhile, a second one-way control module is also arranged on an output line of the signal output end of the second receiver.
7. The device for detecting the position of the rocker arm of the silk winding machine according to claim 6, wherein in the case that a first unidirectional control module is arranged on an output line of a signal output end of the first receiver, the first unidirectional control module comprises: a first diode; a signal output terminal of the first receiver connected to an anode of the first diode; the cathode of the first diode is connected to the controller of the wire take-up machine;
under the condition that a second unidirectional control module is arranged on an output line of a signal output end of the second receiver, the second unidirectional control module comprises: a second diode; a signal output terminal of the second receiver connected to an anode of the second diode; and the cathode of the second diode is connected to the controller of the wire winding machine.
8. The apparatus as claimed in claim 2 or 3, wherein each of the first transmitter, the first receiver, the second transmitter and the second receiver comprises: and a laser detector.
9. A control system of a wire winding machine is characterized by comprising: a controller; further comprising: the yarn take-up machine rocker position detecting device as claimed in any one of claims 1 to 8;
the device for detecting the position of the rocker arm of the wire winding machine is configured to detect the position of the rocker arm of the wire winding machine at the same time to obtain a first position detection signal and a second position detection signal;
the controller is configured to control the wire take-up machine according to any one effective signal of the first position detection signal and the second position detection signal.
10. A control method of a wire collecting machine is characterized by comprising the following steps:
the rocker position detection device of the wire collecting machine according to any one of claims 1 to 8 is adopted to perform double detection on the position of the rocker of the wire collecting machine to obtain a first position detection signal and a second position detection signal;
and controlling the wire take-up machine according to any effective signal in the first position detection signal and the second position detection signal.
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Application publication date: 20210723 |