CN106184871B - Photoelectric detector efficiency detection method and device - Google Patents
Photoelectric detector efficiency detection method and device Download PDFInfo
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- CN106184871B CN106184871B CN201610629575.9A CN201610629575A CN106184871B CN 106184871 B CN106184871 B CN 106184871B CN 201610629575 A CN201610629575 A CN 201610629575A CN 106184871 B CN106184871 B CN 106184871B
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- photoelectric detector
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B19/00—Packaging rod-shaped or tubular articles susceptible to damage by abrasion or pressure, e.g. cigarettes, cigars, macaroni, spaghetti, drinking straws or welding electrodes
- B65B19/28—Control devices for cigarette or cigar packaging machines
- B65B19/30—Control devices for cigarette or cigar packaging machines responsive to presence of faulty articles, e.g. incorrectly filled cigarettes
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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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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
The present invention discloses a kind of photoelectric detector efficiency detection method and device, is related to tobacco automation control area.Wherein efficiency detection controller it is electric after, the output valve of absolute value shaft encoder is detected, if the output valve of absolute value shaft encoder is predetermined value, efficiency detection controller driving tracheae switching device enters conducting state, the compressed gas that first tracheae ejects makes label paper side flap bend downward, the compressed gas that second tracheae ejects makes label paper other side flap bend downward, after preset time delay, efficiency detects the state of controller detection the first photoelectric detector and the second photoelectric detector, if the first photoelectric detector or the second photoelectric detector export fault indication signal, the then circuit between efficiency detection controller cut-out packer controller and packing machine, to make packing machine shut down.The present invention can have found that photoelectric detector failure safeguards consumer's interests so as to ensure product quality in time.
Description
Technical field
The present invention relates to tobacco automation control area, more particularly to a kind of photoelectric detector efficiency detection method and dress
It sets.
Background technology
In order to which more clearly present invention is described, existing packing machine is introduced first below.
1, absolute value shaft encoder principles and methods
As depicted in figs. 1 and 2,2 per revolution of shaft of absolute value shaft encoder 1, signal end 3 uniformly export n number
Word signal, each digital signal are corresponded with the position of shaft 2, and n determines that n is bigger by the model of shaft encoder, shaft encoder
Precision it is higher.
As shown in figure 3, the main shaft 4 of packing machine is connected with the shaft 2 of absolute value shaft encoder 1, packing machine is often transported
One machine cycle of row produces a cigarette, and main shaft 4 drives one circle of the rotation of shaft 2 during this, then shaft encoder 1 is every
A digital signal is corresponded with each running position of packing machine, and then shaft encoder 1 can provide position for the detection of machine
Signal.
2, barrel packaging process introduction
As shown in Figure 4 and Figure 5, packing machine often runs a machine cycle, produces a cigarette, and packaging process is：
Label paper 5 is run down in transfer passage 8, and during running down, left flap 6 and Right flap 7 are applied
Upper glue.When the bottom of the operation of label paper 5 to decline passway 8, the cigarette packet 9 and the label paper 5 that arrange converge, then along arrow
Direction shown in first 10 is run, and in operational process, left flap 6 and Right flap 7 are in a series of mechanical part (not shown)s
It under effect, will bend downward, ultimately form complete plume 11.
3, barrel label paper side flap testing principle
As shown in Figure 5 and Figure 6, in packaging process, when the side flap (left flap 6 and Right flap 7) of plume 12
Also in unfolded state, i.e., when not bending downward, there is side flap detector to be for detecting flap 6 and 7 on the position
No presence.
The detector includes：Left side photoelectric detector 13, left side reflector 14, right side photoelectric detector 15 and right side are reflective
Plate 16.
Photoelectric detector 13 and 15 is identical photoelectric detector, have on the photoelectric detector detector transmitting terminal and
Receiving terminal, transmitting terminal send out detection light beam, and detection light beam is irradiated on object to be detected and is reflected, and reflects back into receiving terminal
Light beam will be absorbed and be judged：When the light quantity that receiving terminal receives is less than the threshold value of detector inner setting, detector
The signal end light quantity that exports 24V d. c. voltage signals, otherwise receive when receiving terminal be more than the threshold value of detector inner setting
When, the signal end of detector does not export 24V d. c. voltage signals.
Left side photoelectric detector 13 is located at 6 top of left flap, and reflector 14 is located at the underface of detector 13, detector
13 send out downwards detection light beam 17.
In the presence of left flap 6, detection light beam 17 is irradiated on flap 6, and segment beam reflects and upwards by detector
13 receiving terminal receives, 6 surface of flap is rough, and the reflection generated at this time is diffusing reflection, and (detector connects reflectivity
Receive the ratio between light quantity and transmitting light quantity) very little, i.e., reflection and the light quantity very little received by detector 13, the light quantity are less than inspection upwards
The threshold value of 13 inner setting of device is surveyed, then the signal end of detector will export 24V d. c. voltage signals.
Conversely, in the absence of left flap 6, detection light beam 17 is emitted onto on reflector 14, and light beam 17 reflects upwards
And received by the receiving terminal of detector 13,14 surface of reflector is smooth, and the reflection generated at this time is mirror-reflection, reflectivity
It is larger, i.e., it reflects upwards and the light quantity received by detector 13 is larger, which is more than the threshold value of 13 inner setting of detector,
Then the signal end of detector will not export 24V d. c. voltage signals.
For example, it is 100 that detector 13, which emits light quantity, inner setting threshold value is 50, and the reflectivity of flap 6 is 20%, reflective
The reflectivity of plate 14 is 70%.When detector 13 detects flap 6, the light quantity that detector 13 receives is 20 (100 × 20%)
< 50, then 13 signal end of detector exports 24V d. c. voltage signals at this time；When detector 13 does not detect flap 6, that is, examine
When survey light beam 17 is irradiated to reflector 14, the light quantity received by detector 13 is 70 (100 × 70%) > 50, is then detected at this time
13 signal end of device does not export 24V d. c. voltage signals.
Then passing through the signal of detector 13 can judge that flap 6 whether there is, when the output signal of detector 13 is
When 24V DC voltages, judge that flap 6 exists, otherwise when detector 13 does not export 24V d. c. voltage signals, judge flap 6 not
In the presence of.
Right side photoelectric detector 15 is located at 7 top of right side side flap, and reflector 16 is located at the underface of detector 15, detects
Device 15 sends out downwards detection light beam 18.
The testing principle of Right flap 7 is also identical：When the output signal of detector 15 is 24V DC voltages, sentence
The wing 7 that wrecks exists, otherwise when detector 15 does not export 24V d. c. voltage signals, judge that flap 7 is not present.
As shown in fig. 7, the signal quilt of left side photoelectric detector 13, right side photoelectric detector 15 and absolute value shaft encoder 1
It is input in packer controller 101,101 output end of packer controller is connected to the Enable Pin of frequency converter 102, frequency converter
102 control main motors 103, main motor 103 control packing machine 104.
When packer controller 101 detects fault-free (such as：Detect that label paper side flap 6 and 7 exists) when, control
Device 101 sends out enable signal (24V d. c. voltage signals) to frequency converter 102, after frequency converter 102 receives enable signal, drives
Main motor 103, main motor 103 drive packing machine 104 to run.
When controller 101 detect it is faulty (such as：Photoelectric detector 13 or 15 detects that side flap is lost) when, it will stop
Enable signal only is sent to frequency converter 102, then frequency converter 102 keeps main motor 103 out of service, and packing machine 104 is shut down.
4, label paper side flap detection device defect
There are two types of failures, and side flap detector can be caused to fail：
(1) the detection light beam 17 or 18 that photoelectric detector 13 or 15 is sent out is decayed
For example, when detector 13 is normal, transmitting light quantity is 100, and inner setting threshold value is 50, and the reflectivity of flap 6 is
20%, the reflectivity of reflector 14 is 70%, can determine whether out that flap 6 whether there is by the output signal of detector 13 at this time：
When the output signal of detector 13 is 24V DC voltages, judge that flap 6 exists；Otherwise when detector 13 does not export 24V direct currents
When voltage signal, judge that flap 6 is not present.
When 13 aging of detector, transmitting light quantity decays to 50 from 100, and the reflectivity of flap 6 and reflector 14 is constant, is
20% and 70%.Then when detector 13 detects flap 6, the light quantity that detector 13 receives is 10 (50 × 20%) < 50, in
It is the 24V d. c. voltage signals of 13 signal end of detector output at this time；When detector 13 does not detect flap 6, that is, detect light beam
17 when being irradiated to reflector 14, and the light quantity received by detector 13 is 35 (50 × 70%) < 50, and then detector 13 is believed at this time
Number end or output 24V d. c. voltage signals, at this time detector 13 fail, can not detect flap 6 lack the case where.
(2) reflector 14 or 16 reflecting powers sternly decay
For example, when detector 13 is normal, transmitting light quantity is 100, and inner setting threshold value is 50, and the reflectivity of flap 6 is
20%, the reflectivity of reflector 14 is 70%, can determine whether out whether flap 6 is deposited by the output signal of detector 13 at this time
--- when the output signal of detector 13 is 24V DC voltages, judge that flap 6 exists, otherwise when detector 13 does not export
When 24V d. c. voltage signals, judge that flap 6 is not present.
Packing machine longtime running, can gradually add up a large amount of dusts on reflector 14, reflecting power decaying, reflectivity from
70% decays to 30%, and the reflectivity of flap 6 is constant, is still 20%, and the light quantity that detector 13 emits is also constant, is 100.Then
When detector 13 detects flap 6, the light quantity that detector 13 receives is 20 (100 × 20%) < 50, then detector at this time
13 signal ends export 24V d. c. voltage signals；When detector 13 does not detect that flap 6, i.e. detection light beam 17 are irradiated to reflective
When plate 14, the light quantity that detector 13 receives is 30 (100 × 30%) < 50, and then 13 signal end of detector still exports at this time
The case where 24V d. c. voltage signals, detector 13 fails, can not detect the missing of flap 6 at this time.
When flank, which detects, to fail, it can cause the plume of no flank that can not be detected, enter in downstream machine, it is most laggard
Enter into consumer's hand, to will produce great quality accident.
Invention content
A kind of photoelectric detector efficiency detection method of offer of the embodiment of the present invention and device, it is empty by using the compression of blowout
The case where gas makes two flanks of label paper bend downward, simulation flank missing, then detect the output of two photoelectric detectors
Whether signal is correct, so as to judge whether detector is working properly.Thus it can ensure product quality, safeguard consumer's profit
Benefit.
According to an aspect of the present invention, a kind of photoelectric detector efficiency detection method is provided, including：
Efficiency detect controller it is electric after, the output valve of absolute value shaft encoder is detected；
If the output valve of absolute value shaft encoder is predetermined value, efficiency detection controller driving tracheae switching device, which enters, leads
Logical state, the compressed gas that the first tracheae ejects make label paper side flap bend downward, the compression that the second tracheae ejects
Gas makes label paper other side flap bend downward；
After preset time delay, efficiency detects the state of controller detection the first photoelectric detector and the second photoelectric detector,
Wherein the first photoelectric detector exports fault indication signal when detecting label paper side flap, and the second photoelectric detector is being examined
Fault indication signal is exported when measuring label paper other side flap；
If the first photoelectric detector or the second photoelectric detector export fault indication signal, efficiency detects controller cut-out
Circuit between packer controller and packing machine, to make packing machine shut down.
Optionally, after efficiency detection controller driving tracheae switching device enters open state, after delay scheduled time T1,
Driving tracheae switching device enters closed state, and the first tracheae and the second tracheae is made to stop injection compressed gas, and wherein T1 is more than
The preset time delay.
Optionally, tracheae switching device is solenoid valve.
Optionally, efficiency detection controller driving tracheae switching device the step of entering conducting state, includes：
Efficiency detects the coil power supply that controller is solenoid valve, and solenoid valve is made to enter conducting state；
Efficiency detection controller driving tracheae switching device the step of entering closed state includes：
Efficiency detects the coil power supply that controller stopping is solenoid valve, and solenoid valve is made to enter closed state.
Optionally, efficiency detection controller cut-out packer controller and packing machine between circuit the step of include：
Efficiency detects controller and powers for relay coil so that circuit is arranged between packer controller and packing machine
On relay normally closed contact disconnect.
Optionally, efficiency detection controller shows the inspection of the first photoelectric detector and the second photoelectric detector by display
Survey state.
Optionally, the normal open switch in controller supply line is detected in efficiency by being closed to be arranged, so that efficiency detects
Controller obtains electric.
According to another aspect of the present invention, a kind of photoelectric detector energy-efficiency detection device, including efficiency detection control are provided
The outlet side of device, tracheae switching device, tracheae switching device is connected with the first tracheae and the second tracheae, wherein：
Efficiency detect controller, for it is electric after, the output valve of absolute value shaft encoder is detected, if absolute value
The output valve of shaft encoder is predetermined value, and driving tracheae switching device enters conducting state；After preset time delay, the first light is detected
The state of photodetector and the second photoelectric detector, wherein the first photoelectric detector is exported when detecting label paper side flap
Fault indication signal, the second photoelectric detector export fault indication signal when detecting label paper other side flap；If first
Photoelectric detector or the second photoelectric detector export fault indication signal, then cut off the line between packer controller and packing machine
Road, to make packing machine shut down；
Tracheae switching device is used for after entering conducting state, and the compressed gas that the first tracheae ejects makes label paper side
Flap is bent downward, and the compressed gas that the second tracheae ejects makes label paper other side flap bend downward.
Optionally, efficiency detection controller is additionally operable to after driving tracheae switching device enters open state, and delay is predetermined
After time T1, driving tracheae switching device enters closed state, and the first tracheae and the second tracheae is made to stop injection compressed gas,
Middle T1 is more than the preset time delay.
Optionally, tracheae switching device is solenoid valve.
Optionally, efficiency detection controller is specially the coil power supply of solenoid valve, and solenoid valve is made to enter conducting state；Also use
In stopping the coil power supply for solenoid valve, solenoid valve is made to enter closed state.
Optionally, above-mentioned apparatus further includes relay, wherein：
Efficiency detection controller is additionally operable to when cutting off the circuit between packer controller and packing machine be relay line
Circle power supply so that the relay normally closed contact being arranged between packer controller and packing machine on circuit disconnects.
Optionally, above-mentioned apparatus further includes display, wherein：
Display is used to show the detecting state of the first photoelectric detector and the second photoelectric detector.
Optionally, above-mentioned apparatus further includes the normal open switch being arranged in efficiency detection controller supply line, wherein：
Normal open switch is used for after closure, so that efficiency detection controller is obtained electric.
By referring to the drawings to the detailed description of exemplary embodiment of the present invention, other feature of the invention and its
Advantage will become apparent.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without having to pay creative labor, may be used also for those of ordinary skill in the art
With obtain other attached drawings according to these attached drawings.
Fig. 1 is the schematic diagram of absolute value shaft encoder.
Fig. 2 is absolute value shaft encoder output signal schematic diagram.
Fig. 3 is the catenation principle schematic diagram of absolute value shaft encoder on packing machine.
Fig. 4 is barrel label paper expanded schematic diagram.
Fig. 5 is barrel flow package schematic diagram.
Fig. 6 is photoelectric detector position view.
Fig. 7 is flank detection device circuit diagram.
Fig. 8 is tracheae scheme of installation of the present invention.
The schematic diagram that label paper side flap is bent downward when Fig. 9 is tracheae outlet of the present invention.
Figure 10 is the circuit diagram of energy-efficiency detection device of the present invention.
Figure 11 is the schematic diagram that efficiency of the present invention detects one embodiment.
Figure 12 is efficiency testing process schematic diagram of the present invention.
Figure 13 is that efficiency of the present invention detects time diagram.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Below
Description only actually at least one exemplary embodiment is illustrative, is never used as to the present invention and its application or makes
Any restrictions.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, shall fall within the protection scope of the present invention.
Unless specifically stated otherwise, positioned opposite, the digital table of the component and step that otherwise illustrate in these embodiments
It is not limited the scope of the invention up to formula and numerical value.
Simultaneously, it should be appreciated that for ease of description, the size of attached various pieces shown in the drawings is not according to reality
Proportionate relationship draw.
Technology, method and apparatus known to person of ordinary skill in the relevant may be not discussed in detail, but suitable
In the case of, the technology, method and apparatus should be considered as authorizing part of specification.
In shown here and discussion all examples, any occurrence should be construed as merely illustrative, without
It is as limitation.Therefore, the other examples of exemplary embodiment can have different values.
It should be noted that：Similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it need not be further discussed in subsequent attached drawing in a attached drawing.
As shown in Figure 8 and Figure 9, tracheae switching device, optionally, the gas are set in photoelectric detector energy-efficiency detection device
Pipe switching device can be solenoid valve 19.The outlet side 20 of wherein solenoid valve 19 is connected with the first tracheae 21 and the second tracheae 22.Example
Such as, the first tracheae 21 is set to the inside of left side photoelectric detector 13, and outlet side is directed at downwards left flap 6；Second tracheae
22 are set to the inside of right side photoelectric detector 15, and outlet side is directed at downwards the side right folding wing 7.
As shown in Figure 10, efficiency detection controller is additionally provided in photoelectric detector energy-efficiency detection device.Optionally, the efficiency
It can be PLC (programmable controller) 23 to detect controller.In addition, by the left side photoelectric detector 13 in existing packing machine, right side
The signal that photoelectric detector 15 and absolute value shaft encoder 1 export is input in PLC 23.
Wherein, PLC 23 it is electric after, the output valve of absolute value shaft encoder 1 is detected, if absolute value axis encode
The output valve of device is predetermined value A, then drive magnetic valve 19 enters conducting state.
Wherein, when machine is run, when the first tracheae 21 and the second tracheae 22 are directed at left flap 6 and right side separately down
When the centre position of flap 7, the output signal of absolute value shaft encoder is A.
For solenoid valve 19 after entering conducting state, the compressed gas that the first tracheae 21 ejects makes label paper left flap 6
Bending, the compressed gas that the second tracheae 22 ejects make label paper Right flap 7 bend downward.
PLC 23 is after drive magnetic valve 19 enters conducting state, after preset time delay T2, detection left side Photoelectric Detection
The state of device 13 and right side photoelectric detector 15, wherein left side photoelectric detector 13 is defeated when detecting label paper left flap 6
Be out of order indication signal, and right side photoelectric detector 15 exports fault indication signal when detecting label paper Right flap 7.If light
Photodetector 13 or photoelectric detector 15 export fault indication signal, then PLC 23 cuts off packer controller 101 and wrapped with control
Circuit between the frequency converter 102 of installation 104, to make packing machine 104 shut down.
Optionally, PLC 23 is additionally operable to after drive magnetic valve 19 enters open state, after delay scheduled time T1, driving
Solenoid valve 19 enters closed state, and the first tracheae 21 and the second tracheae 22 is made to stop injection compressed gas, and wherein T1 is more than predetermined
Time delay T2.
It should be noted that the value principle of preset time delay T2 is：When solenoid valve 19 the electric time be T2 when, one surely
Enough so that both sides flap is bent downward, the detection light beam of two photoelectric detectors is irradiated on corresponding reflector.
Optionally, PLC 23 for the coil 29 in solenoid valve 19 by powering, to make solenoid valve 19 enter conducting state；
If PLC 23 stops powering for the coil 29 of solenoid valve 19, to make solenoid valve 19 enter closed state.Wherein, electromagnetic valve coil
29 one end is connected to the output end of PLC 23, and the other end is connected in 0V DC voltages.
Optionally, as shown in Figure 10, it is additionally provided with relay 26 in photoelectric detector energy-efficiency detection device.Its repeat circuit line
One end of circle 27 is connected to the output end of PLC 23, and the other end is connected to 0V DC voltages, and the normally-closed contact 28 of relay 26 is set
It sets on the circuit between packer controller 101 and frequency converter 102.
Wherein, PLC 23 is relay coil 27 when cutting off the circuit between packer controller 101 and frequency converter 102
Power supply, so that the relay normally closed contact 28 being arranged between packer controller 101 and frequency converter 102 on circuit is disconnected
It opens, thus controls packing machine and be stopped.
Optionally, as shown in Figure 10, in photoelectric detector energy-efficiency detection device further include display 30, wherein display 30
Detecting state for showing photoelectric detector 13 and photoelectric detector 15.
For example, PLC 23 it is electric after, if detect that the output signal of absolute value shaft encoder is A, 23 PLC at this time
Electromagnetic valve coil 29 is set to obtain electric, duration T 1.It must establish by cable the beginning, be delayed after T2 from electromagnetic valve coil 29：
If 1) photoelectric detector 13 no signal in left side exports, PLC 23 does not drive relay 26, while PLC 23 is logical
It crosses display 30 and shows " left side photoelectric detector is normal " information.
If 2) photoelectric detector 15 no signal in right side exports, PLC 23 does not drive relay 26, while PLC 23 is logical
It crosses display 30 and shows " right side photoelectric detector is normal " information.
If 3) left side photoelectric detector 13 exports 24V d. c. voltage signals, PLC 23 drives relay 26, makes machine
It is out of service, while PLC 23 shows " failure of left side photoelectric detector " information by display 30.
If 4) right side photoelectric detector 15 exports 24V d. c. voltage signals, PLC 23 drives relay 26, makes machine
It is out of service, while PLC 23 shows " failure of right side photoelectric detector " information by display 30.
Optionally, as shown in Figure 10, the button 24 of normally opened contact 25 is additionally provided in efficiency detection controller supply line,
One end of wherein normally opened contact 25 is connected in 24V DC voltages, and the other end is connected to PLC 23, can trigger by the button 24
Efficiency detects.Wherein, normally opened contact 25 makes PLC 23 obtain electric after closure.
Figure 11 is the schematic diagram that energy-efficiency detection device of the present invention detects one embodiment.Wherein：
Step 1101, efficiency detection controller it is electric after, the output valve of absolute value shaft encoder is detected.
Wherein, efficiency detection controller can be PLC.It can be detected in controller supply line in efficiency by being closed to be arranged
Button equipped with normally opened contact so that efficiency detection controller obtain it is electric.
Step 1102, if the output valve of absolute value shaft encoder is predetermined value A, efficiency detects controller driving tracheae switch
Device enters conducting state, and the compressed gas that the first tracheae ejects makes label paper side flap bend downward, the spray of the second tracheae
The compressed gas of injection makes label paper other side flap bend downward.
Optionally, tracheae switching device is solenoid valve.
For example, efficiency detects controller by the coil power supply for solenoid valve, solenoid valve is made to enter conducting state；Efficiency is examined
The coil power supply that controller stopping is solenoid valve is surveyed, solenoid valve is made to enter closed state.
Step 1103, after preset time delay T2, efficiency detects controller and detects the first photoelectric detector and the inspection of the second photoelectricity
Survey the state of device.
Wherein the first photoelectric detector exports fault indication signal, the inspection of the second photoelectricity when detecting label paper side flap
It surveys device and exports fault indication signal when detecting label paper other side flap.
Step 1104, if the first photoelectric detector or the second photoelectric detector export fault indication signal, efficiency detection
Controller cuts off the circuit between packer controller and packing machine, to make packing machine shut down.
Optionally, efficiency detection controller for relay coil by powering so that setting is in packer controller and packet
Relay normally closed contact between installation on circuit disconnects.
Optionally, after efficiency detection controller driving tracheae switching device enters open state, after delay scheduled time T1,
Driving tracheae switching device enters closed state, and the first tracheae and the second tracheae is made to stop injection compressed gas, and wherein T1 is more than
Preset time delay T2.
Optionally, efficiency detection controller shows the inspection of the first photoelectric detector and the second photoelectric detector by display
Survey state.
With reference to Figure 12 and Figure 13, the present invention is specifically described.
As shown in figure 12, in step 1201, whether 23 detection buttons 24 of PLC are pressed.If detecting, button 24 is pressed
Under, then enter step the detection of 1202 execution efficiencies.
In step 1202, whether the output signal that PLC 23 detects absolute value shaft encoder 1 is predetermined value A.Wherein when
When the signal of absolute value shaft encoder 1 is A, show the first tracheae 21 at this time and the second tracheae 22 alignment left flap 6 and right side
The centre position of flap 7.
If the output signal of absolute value shaft encoder 1 is predetermined value A, 1203 are thened follow the steps.
In step 1203, it is electric that PLC 23 makes electromagnetic valve coil 29 obtain, and duration T 1, solenoid valve 19 passes through the first tracheae
21 and second tracheae 22 eject compressed air both sides flap 6 and 7 made to bend downward, the detection light beam 17 of two photoelectric detectors
It is irradiated on corresponding reflector 14 and 16 with 18.Then step 1204 and step 1207 are executed respectively.
In step 1204, it must establish by cable the beginning, be delayed after T2 from electromagnetic valve coil 29, whether detection left side photoelectric detector 13
There is signal output.
If photoelectric detector 13 no signal in left side exports, shows that left side photoelectric detector 13 is working properly, then execute
Step 1205；If left side photoelectric detector 13 exports 24V d. c. voltage signals, show that left side photoelectric detector 13 fails, then
Execute step 1206.
In step 1205, PLC23 does not drive relay 26, i.e. relay coil 27 must not be electric, and normally-closed contact 28 closes
It closes, packer controller is connected to frequency converter holding, and machine continuation is run under the control of packer controller, while PLC23
" left side photoelectric detector is normal " information is shown by display 30.
In step 1206, PLC drives relay 26, relay coil 27 to obtain electric, the disconnection of normally-closed contact 28, packing machine
Controller send the enable signal to frequency converter to be cut off, and machine is out of service, while PLC23 shows " left side by display 30
Photoelectric detector fails " information.
It in step 1207, must establish by cable the beginning, be delayed after T2 from electromagnetic valve coil 29, whether detection right side photoelectric detector 15
There is signal output.
If photoelectric detector 15 no signal in right side exports, shows that right side photoelectric detector 15 is working properly, then execute
Step 1208；If right side photoelectric detector 15 exports 24V d. c. voltage signals, show that right side photoelectric detector 15 fails, then
Execute step 1209.
In step 1208, PLC23 does not drive relay 26, i.e. relay coil 27 must not be electric, and normally-closed contact 28 closes
It closes, packer controller is connected to frequency converter holding, and machine continuation is run under the control of packer controller, while PLC23
" right side photoelectric detector is normal " information is shown by display 30.
In step 1209, PLC drives relay 26, relay coil 27 to obtain electric, the disconnection of normally-closed contact 28, packing machine
Controller send the enable signal to frequency converter to be cut off, and machine is out of service, while PLC 23 shows " right side by display 30
Photoelectric detector fails " information.
Figure 13 is that efficiency of the present invention detects time diagram.Wherein：
In figure (a), when button 24 is pressed, PLC 23 can receive corresponding trigger signal.
In figure (b), PLC 23 after detecting that button 24 is pressed, to the output signal of absolute value shaft encoder 1 into
Row detection.When the output valve of absolute value shaft encoder 1 is A, show the outlet positive alignment label paper both sides of two tracheaes at this time
The centre position of flap.
In figure (c), PLC 23 when the output valve for detecting absolute value shaft encoder 1 is A, hold by drive magnetic valve 19
The continuous time is T1, and the compressed air that two tracheaes eject makes label paper both sides flap bend downward, two photoelectric detectors
Detection light beam is irradiated on corresponding reflector.
It in figure (d), must establish by cable the beginning, be delayed after T2, if left side (or right side) photoelectric detector no signal from solenoid valve 19
Output then shows that left side (or right side) photoelectric detector is working properly.
In figure (e), since left side (or right side) photoelectric detector is working properly, PLC23 does not drive relay 26,
I.e. relay 26 must not be electric, and packer controller is connected to frequency converter holding, and machine continues under the control of packer controller
Operation, while PLC 23 shows " left side (or right side) photoelectric detector is normal " information by display 30.
It in figure (f), must establish by cable the beginning, be delayed after T2 from solenoid valve 19, if left side (or right side) photoelectric detector exports
24VDC voltage signals then show left side (or right side) photoelectric detector failure.
In figure (g), since left side (or right side) photoelectric detector fails, PLC23 drives relay 26, i.e. relay
Device coil 27 must be electric, and normally-closed contact end is opened, and packer controller send the enable signal to frequency converter to be cut off, and machine stops fortune
Row, while PLC 23 shows " failure of left side (or right side) photoelectric detector " information by display 30.
By applying the present invention, detector failures can be found in time, so as to ensure product quality, consumer's profit is safeguarded
Benefit.
One of ordinary skill in the art will appreciate that realizing that all or part of step of above-described embodiment can pass through hardware
It completes, relevant hardware can also be instructed to complete by program, the program can be stored in a kind of computer-readable
In storage medium, storage medium mentioned above can be read-only memory, disk or CD etc..
Description of the invention provides for the sake of example and description, and is not exhaustively or will be of the invention
It is limited to disclosed form.Many modifications and variations are obvious for the ordinary skill in the art.It selects and retouches
It states embodiment and is to more preferably illustrate the principle of the present invention and practical application, and those skilled in the art is enable to manage
Various embodiments with various modifications of the solution present invention to design suitable for special-purpose.
Claims (14)
1. a kind of photoelectric detector efficiency detection method, which is characterized in that including：
Efficiency detect controller it is electric after, the output valve of absolute value shaft encoder is detected；
If the output valve of absolute value shaft encoder is predetermined value, efficiency detection controller driving tracheae switching device enters conducting shape
State, the compressed gas that the first tracheae ejects make label paper side flap bend downward, the compressed gas that the second tracheae ejects
Label paper other side flap is set to bend downward；
After preset time delay, efficiency detects the state of controller detection the first photoelectric detector and the second photoelectric detector, wherein
First photoelectric detector exports fault indication signal when detecting label paper side flap, and the second photoelectric detector is detecting
Fault indication signal is exported when the flap of the label paper other side；
If the first photoelectric detector or the second photoelectric detector export fault indication signal, efficiency detects controller cut-out packaging
Circuit between machine controller and packing machine, to make packing machine shut down.
2. according to the method described in claim 1, it is characterized in that, further including：
After efficiency detection controller driving tracheae switching device enters conducting state, after delay scheduled time T1, driving tracheae is opened
It closes device and enters closed state, the first tracheae and the second tracheae is made to stop injection compressed gas, wherein T1 is more than the pre- timing
Prolong.
3. method according to claim 1 or 2, which is characterized in that
Tracheae switching device is solenoid valve.
4. according to the method described in claim 3, it is characterized in that,
Efficiency detection controller driving tracheae switching device the step of entering conducting state includes：
Efficiency detects the coil power supply that controller is solenoid valve, and solenoid valve is made to enter conducting state；
Efficiency detection controller driving tracheae switching device the step of entering closed state includes：
Efficiency detects the coil power supply that controller stopping is solenoid valve, and solenoid valve is made to enter closed state.
5. method according to claim 1 or 2, which is characterized in that further include：
Efficiency detection controller cut-out packer controller and packing machine between circuit the step of include：
Efficiency detects controller and powers for relay coil so that is arranged between packer controller and packing machine on circuit
Relay normally closed contact disconnects.
6. method according to claim 1 or 2, which is characterized in that further include：
Efficiency detection controller shows the detecting state of the first photoelectric detector and the second photoelectric detector by display.
7. method according to claim 1 or 2, which is characterized in that further include：
Detect the normal open switch in controller supply line in efficiency by being closed to be arranged so that efficiency detection controller obtain it is electric.
8. a kind of photoelectric detector energy-efficiency detection device, which is characterized in that controller, tracheae switching device are detected including efficiency,
The outlet side of tracheae switching device is connected with the first tracheae and the second tracheae, wherein：
Efficiency detect controller, for it is electric after, the output valve of absolute value shaft encoder is detected, if absolute value axis compile
The output valve of code device is predetermined value, and driving tracheae switching device enters conducting state；After preset time delay, detection the first photoelectricity inspection
The state for surveying device and the second photoelectric detector, wherein the first photoelectric detector exports failure when detecting label paper side flap
Indication signal, the second photoelectric detector export fault indication signal when detecting label paper other side flap；If the first photoelectricity
Detector or the second photoelectric detector export fault indication signal, then cut off the circuit between packer controller and packing machine,
To make packing machine shut down；
Tracheae switching device is used for after entering conducting state, and the compressed gas that the first tracheae ejects makes label paper side flap
It bends downward, the compressed gas that the second tracheae ejects makes label paper other side flap bend downward.
9. device according to claim 8, which is characterized in that
Efficiency detection controller is additionally operable to after driving tracheae switching device enters conducting state, after delay scheduled time T1, is driven
Pipe switching device of taking offence enters closed state, and the first tracheae and the second tracheae is made to stop injection compressed gas, and wherein T1 is more than institute
State preset time delay.
10. device according to claim 8 or claim 9, which is characterized in that
Tracheae switching device is solenoid valve.
11. device according to claim 10, which is characterized in that
Efficiency detection controller is specially the coil power supply of solenoid valve, and solenoid valve is made to enter conducting state；It is additionally operable to stop as electricity
The coil power supply of magnet valve, makes solenoid valve enter closed state.
12. device according to claim 8 or claim 9, which is characterized in that further include relay, wherein：
Efficiency detection controller is additionally operable to supply for relay coil when cutting off the circuit between packer controller and packing machine
Electricity so that the relay normally closed contact being arranged between packer controller and packing machine on circuit disconnects.
13. device according to claim 8 or claim 9, which is characterized in that further include display, wherein：
Display is used to show the detecting state of the first photoelectric detector and the second photoelectric detector.
14. device according to claim 8 or claim 9, which is characterized in that further include that setting detects controller supply lines in efficiency
The normal open switch of road, wherein：
Normal open switch is used for after closure, so that efficiency detection controller is obtained electric.
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| CN108958153A (en) * | 2017-05-19 | 2018-12-07 | 太仓澄天机械有限公司 | A kind of packing machine instant communication method |
| CN111605757A (en) * | 2019-02-22 | 2020-09-01 | 青岛萨沃特机器人有限公司 | Box sealing device, packing machine and computer readable medium |
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